• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a device and a method for treating soil in which the specific characteristics of the soil, such as the weight and the moisture content, are measured. More particularly, the present invention relates to a device and method for conditioning soil, and more particularly, non-stabilized soil such as clay or loam.
    公开号:BE1020109A3
    申请号:E2011/0025
    申请日:2011-01-19
    公开日:2013-05-07
    发明作者:
    申请人:Commeene Jean Paul；
    IPC主号:
    专利说明:

    MOBILE DEVICE FOR CONDITIONING LAND
    Technical area
    The present invention relates to a device and a method for treating soil in which specific characteristics of the soil, such as the weight and the moisture content, are measured. More particularly, the present invention relates to a device and method for conditioning soil, and more particularly to a non-stabilized soil such as clay or loam.
    Background
    Soil conditioning refers to the process whereby soil is treated in such a way that the properties of the soil are adjusted and improved. An example of soil conditioning is the process where the soil is remediated and the soil pollution is removed or neutralized. Different methods and techniques are available for the treatment of the soil, depending, among other things, on the location and properties of the soil.
    When treating soils, additives are often added and mixed with the soil to improve properties. Additives such as ash, lime and / or cement can be added to improve the stability of the soil. Other options are the addition of substrates such as pesticides and fertilizers to compost the soil, thereby improving the properties of the compost. When adding additives to soil, the dosage of these additives is very important. Depending on the amount of soil, the correct amount of additives must be added and mixed with the soil. Therefore, weight measurements are performed on the ground to provide the correct dosage of the additives. However, when the soil is treated, the composition and characteristics of the soil may change during the treatment process, depending on the type of soil that is introduced into the process. This causes a major problem since the dosage of additives in the process is determined at the start of the process and does not vary when certain soil characteristics change.
    The place of treatment is also an important factor. When an in situ method is preferred, the treatment does not require the soil to be excavated, an on-site method requires the untreated soil to be excavated and the soil to be treated on site, while an ex-situ method is a method where the untreated soil is transported to a processing facility where the treatment of the soil takes place.
    An on-site method for conditioning requires that all operations take place on the site itself and requires efficient and mobile equipment. Conditioning in particular non-stabilized soil such as clay and / or loam soil is very difficult, which is due to the characteristics of the soil that depend on environmental influences (eg humidity) where even the soil characteristics can change during the soil treatment process. It becomes even more difficult when the soil contains other materials such as bricks and / or pieces of concrete. Conventional systems and methods for soil conditioning, and in particular for the on-site treatment of the soil, are not geared to the efficient treatment of non-stabilized soil. The lack of an efficient way for on-site soil conditioning, and in particular non-stabilized soil, causes several problems for the construction industry and road construction where work involves, for example, earthworks and foundations. Often the rough soil has to be removed and replaced with soil of better quality and with better properties, which is an expensive and inefficient process.
    The present invention overcomes one or more of the aforementioned problems. The present invention therefore relates to a device and a method for the treatment of soil, and in particular for the treatment of non-stabilized soil such as loam or clay. The treatment has been adapted in such a way that the addition of additives to the soil is controlled in an accurate and flexible way. Furthermore, the present invention allows the treatment of soils that are difficult to treat while still providing a system that is mobile and that can be used in an on-site method. The device according to the present invention combines a large treatment capacity with a compact system, which allows the transport of the system to the location where the soil requires treatment.
    Summary
    The present invention relates to a device for treating soil. The treatment is adapted in such a way that the addition and dosage of additives to the soil is controlled and regulated in an accurate and flexible manner. The present invention therefore allows the treatment of soils that are difficult to treat while still providing a system that is mobile and that can be used in an on-site process. The device according to the present invention combines a large treatment capacity with a compact system which allows the transport of the system to the location where the soil requires treatment. Furthermore, the present invention relates to methods for treating soil.
    The present invention relates to a device for treating soil, and more particularly for treating non-stabilized soil, comprising means for transporting soil, means for performing weight measurements on untreated soil, means for performing of moisture measurements on the untreated soil and a mixing system for mixing additives, such as preferably ash, lime and / or cement with said soil, said means for performing weight and moisture measurements on said untreated soil balance sensor and at least one moisture sensor. More specifically, said soil treatment device further comprises a soil storage container for collecting untreated soil.
    The present invention relates in a particular embodiment to a device according to the present invention, wherein said device comprises means for receiving data information from said weight and / or humidity measurements and for controlling the dosage of additives to said mixing system. The device according to the present invention is therefore provided with any type of means for carrying out this type of control and, for example, use can be made of a computer to receive the information from the sensors and to control the additive dosing accordingly. As a non-limiting example, a Programmable Logic Controller (PLC) or a programmable controller is used to perform the control. A PLC refers to a digital computer used for automation of electromechanical processes, such as the control of machines. PLCs are used in many industries and machines. Unlike general-purpose computers, the PLC is designed for multiple input and output controls, wide temperature ranges, immunity to electrical noise and resistance to vibration and impact. Machine control programs are typically stored in a battery-supported or non-volatile memory. A PLC is typically a real-time system since the Output results must be produced in response to input conditions within a limited time, otherwise unintended operation will occur.
    The present invention ensures that the weight and / or moisture sensors in the device according to the present invention are positioned such that weight and / or moisture measurements are performed on the ground e.g. after loading the soil into the device and prior to entering the soil into the mixing system. The weight and / or humidity measurements therefore provide online information regarding the flow, weight and humidity of the soil just prior to the injection of the soil into the mixing system, as well as the online control of the soil properties and the online and direct adjustment of the soil. additive dosing to the mixing system. Therefore, the device according to the present invention allows the adjustment of the additive dosage depending on the weight and / or moisture measurements of the soil being treated in the conditioning device. Since it very often happens that the characteristics of the soil change during the operation of the device, for example due to the fact that during the operation of the device new soil is loaded into the device, the new soil having different properties, the device provides according to the present invention, a high flexibility and allows the adjustment of the additive dosage depending on the soil to be treated and variations of the soil characteristics.
    For example, if new soil is added to the device during operation of the device according to the present invention, the new soil having a higher moisture content, the humidity and / or weight sensors will automatically check this higher moisture content of the soil and provide adjustments to the additive dosage accordingly.
    The online weight and / or moisture measurements in the device according to the present invention also allow the prevention of waste of additive. Since the additives are highly valuable materials, the online weight measurements ensure that, when the supply of soil ceases, the weight measurements will show a reduction in the flow rate of the soil or even a termination of the flow rate of the soil, whereby information is provided to the additive dosing system to reduce or stop the supply of additives to the mixing system, thereby avoiding wastage of highly valuable materials.
    The present invention also relates to a device according to the present invention, wherein said device comprises means for sieving and refining said untreated soil prior to mixing said soil with said additives.
    In another embodiment, the present invention relates to a method for treating soil, and more particularly non-stabilized soil, which comprises the following steps: (a) loading untreated soil into a device according to the present invention; (b) optionally sieving and / or refining said untreated soil; (c) measuring the weight and moisture content of said untreated soil from step (a) and / or said sieved and / or refined soil from step (b); and (d) mixing said untreated soil from step (a) and / or said sieved and / or refined soil from step (b) with additives in a mixing system.
    The present invention further relates to a device or method according to the present invention, wherein said soil treatment comprises conditioning, refining or improving soil, such as, for example, cleaning, purification, stabilization, fertilization, remediation or the establishment of a suitable chemical balance of said soil.
    The present invention further relates to a ground treatment device, comprising means for, preferably wirelessly, exporting or transferring information, with regard to the functioning of said device and / or the weight and / or moisture measurements of said device, from said device to an information carrier or computer device, which are preferably located outside said device.
    These and further aspects and embodiments of the invention are further explained below in the following sections and in the claims, and are also illustrated with non-limiting figures.
    Brief description of the figures
    Figure 1 illustrates schematically a view of the device according to an embodiment of the present invention.
    Figure 2 schematically illustrates a detailed side view of the device according to an embodiment of the present invention.
    Figure 3 schematically illustrates the screening table of the device according to an embodiment of the present invention.
    Figure 4 illustrates specific shapes of the screen discs according to an embodiment of the present invention.
    Figure 5 illustrates a graphical representation of the soil production data according to an embodiment of the present invention.
    Figure 6 schematically illustrates a flow chart of the actions performed by the device according to an embodiment of the present invention.
    Detailed description of the invention
    Before describing the current method and devices used in the invention, it is to be understood that this invention is not limited to certain methods, components or devices described, since such methods, components and devices may, of course, vary. It is also to be understood that the terminology used herein is not intended to be limiting, since the scope of the present invention will be limited only by the dependent claims.
    Unless otherwise specified, all technical and scientific terms used herein have the same meaning as generally understood by one skilled in the art to which this invention belongs. Although any methods and materials similar or equivalent to those described herein can be used in practice or in testing the present invention, the preferred methods and materials are now described.
    As used herein, the singular includes "a", "an", and "the" both singular and plural referents unless the context clearly dictates otherwise. The terms "comprising" and "includes" and "comprising" as used herein are synonymous with "including" "contains" or "containing", "contains", and are inclusive or open-ended and do not exclude additional, non-recited members, elements or process steps. The terms "comprising" and "includes" and "comprising" also include the term "consisting of". The expression of numerical ranges by end points includes all numbers and fractions that are housed within the respective ranges, as well as the aforementioned end points. The term "about" as used herein when referring to a measurable value such as a parameter, an amount, a temporary duration, and the like, should include variations of +/- 10% or less, preferably +/- 5% or less, more preferably +/- 1% or less, and even more preferably +/- 0.1% or less of the specified value, insofar as such variations are appropriate to operate in the disclosed invention.It is to be understood that the value to which the provision "approximately" refers, is itself specific and is preferably disclosed. All documents cited in the current description are hereby incorporated by reference in their entirety.
    Reference in this description to "one embodiment" or "an embodiment" means that a particular feature, structure, or feature described in relation to the embodiment is included in at least one embodiment of the present invention. Thus, the terms "in one embodiment" or "in an embodiment" in various places throughout this description do not necessarily all refer to the same embodiment, but it is possible. Furthermore, the particular properties, the structures or the features in one or more embodiments can be combined in any suitable manner, as may be apparent to a person skilled in the art from this disclosure. While further some embodiments described herein include certain, but not other, features included in other embodiments, combinations of features of different embodiments are intended to fall within the scope of the invention, and formally different embodiments, as those skilled in the art will appreciate. For example, in the following claims, all claimed embodiments can be used in any combination.
    Unless otherwise specified, all terms used in the disclosure of the invention, including technical and scientific terms, have the meaning as generally understood by one skilled in the art to which this invention belongs. As further guidance, the definitions of the terms used in the description are included to better appreciate the explanation of the present invention.
    The present invention relates to a device for treating soil. The treatment is adapted in such a way that the addition and dosage of additives to the soil is controlled and controlled in an accurate and flexible manner. The present invention therefore allows the treatment of soils that are difficult to treat while still providing a system that is mobile and that can be used in an on-site method. The device according to the present invention combines a large treatment capacity with a compact system, which allows the transport of the system to the place where the soil requires treatment. Furthermore, the present invention relates to methods for treating soil.
    As used herein, the term "soil" generally refers to all known types of soil including typical rock, mineral particles and / or organic material. Soil is a natural body comprising solids such as minerals and organic material, liquid and gases. Solids in the soil are various components such as sand, sludge and clay, and depending on the composition, the characteristics of the soil and soil behavior can change, including the ability to retain food and water. physical weathering, while clay is the product of chemical weathering.The clay content has the capacity to retain nutrients and water, so clay soils are more resistant to wind and water erosion than sludge and sandy soils, because the particles are more close to each other .
    Different types of soil refer to the different sizes of mineral particles in a given soil sample. Part of the soil consists of finely ground rock particles, which are classified according to size into sand, sludge and clay. Each size plays a significantly different role. For example, the largest particles, sand, determine the aeration and drainage characteristics, while the smallest, sub-microscopic clay particles, are chemically active and bind to plant nutrients with waters. The ratio of these sizes determines the soil type: clay, loam, clay loam, sludge loam, etc. In addition to the mineral composition of soil, humus also plays an essential role for the soil characteristics and fertility for plant life. Soil can be mixed with a larger aggregate, such as pebbles or gravel. In the light of the present invention, compost can also be considered as soil.
    The treatment of soil referred to herein generally relates to all known types of soil treatment known in the art and more particularly to treatments where the properties of the soil are changed. The treatments of the soil may include, for example, conditioning, refining or soil improvement, such as cleaning, purification, stabilization, fertilization, remediation or bringing about a changed chemical equilibrium of said soil.
    Contaminated soil caused by the presence of man-made chemical products such as petroleum hydrocarbons, solvents, pesticides, lead and other heavy metals in the soil may require cleaning, disinfection and / or purification. Cleaning or remediation of contaminated soil depends on the type of contamination and may, for example, require the containment of soil contaminants by mixing the soil with additives.
    Some types of soil can also cause problems for laying foundations and performing earthworks. Clay and loam soils are referred to as non-stabilized soils that can lead to problems for construction and the road construction industry. It is well known that non-stabilized soils require soil conditioning by, for example, mixing the soil with ash, lime, gypsum, and / or cement to perform the stabilization.
    Another example for the treatment of soils is the fertilization of soils by the addition of humus or compost, or the addition of fertilizers, pesticides and other chemical substances to improve the quality of compost or other soils.
    As used herein, the term "additives" refers to substrates that change the physical and / or chemical properties of the soil. Typical additives for remediation of contaminated soils are binder components that encapsulate the contaminants and prevent the contaminants from leaching out of the soil. For the conditioning of soils, additives such as wood ash, fly ash, paper ash, other types of ash, lime, gypsum and / or cement can be used For the fertilization of soils, additives such as humus or compost can be used , fertilizers, pesticides and other chemical substances to improve the quality of compost or other soils.
    The present invention relates to a device for treating soil and more particularly for treating non-stabilized soil, comprising means for transporting soil, means for performing weight measurements on untreated soil, means for performing soil humidity measurements on untreated soil and a mixing system for mixing additives, such as ash, lime and / or cement, with said soil, said means for carrying out weight and humidity measurements on said untreated soil having at least one weight sensor and at least one moisture sensor.
    More specifically, said soil treatment device further comprises a soil storage container for the collection of untreated soil.
    The soil storage container provided on the device according to the present invention allows the collection of untreated soil. Said ground storage container is preferably a separate ground storage container. The untreated soil is fed into the device using methods and devices that are well known in the art, such as, for example, a loader or a shovel.
    After loading the untreated soil into the device and preferably into the soil storage container, weight and / or moisture measurements are carried out on the soil with the aid of means for measuring the weight and / or the moisture or the moisture content. The weight and / or moisture measurements of the soil provide an indication of the amount of additives required to be mixed with the soil in the mixing system.
    The weight of the soil provides an indication of, for example, the amount of soil being treated and / or the flow rate of the soil. For example, an increased flow requires a larger amount of additives to be added to the soil, while a reduced flow requires a smaller amount of additives to be added to the soil in the mixing system.
    A measurement of the moisture content or the humidity of the soil provides an important indication of the characteristics of the soil. While a soil with an increased moisture content often requires that a larger amount of additives be added to the soil, a reduced moisture content generally requires that a smaller amount of additives be added to the soil in the mixing system.
    The mixing system provided in the device according to the present invention refers to a mixing chamber that has at least one mixing rotor positioned so as to mix the incoming soil with incoming additives.
    The present invention further relates to a device according to the present invention, wherein said device further comprises means for dosing additives to said mixing system. Preferably, said device comprises one or more additive storage containers for storing additives. Said additive storage containers allow the storage of different types of additives used in the device according to the present invention. Furthermore, the additive storage containers can be provided with means that allow the dosing of additives to the mixing system. The additives can be added from the storage containers for additives to the mixing system by any method known in the art such as the use of metering valves, for example the use of gravity as a driving force, or the use of propellers or pumps such as the screw of Archimedes or other screw propellers, to supply the additives to the mixing system in an efficient and controllable manner, which allows the precise introduction of the additives into the mixing chamber.
    A person skilled in the art will appreciate that the dosage control of the additives can be controlled, either by reducing or increasing the amount of additives that is added to the mixer, or by increasing or decreasing the amount of untreated soil introduced into the mixer. is becoming.
    In a particular embodiment, the present invention relates to a device for treating soil, and more particularly for treating non-stabilized soil, wherein said device comprises means for exporting or transferring information regarding the functioning of said soil device, from said device to an information carrier or computer device. More in particular, said means for exporting or transferring information comprises means generally known in the art for exporting information from said device to an external data carrier. For example, use can be made of wireless communication for exporting or transferring said information. The said information can also be stored in the device according to the present invention and the information can be exported or transferred using generally known data carriers, such as, for example, but not limited to flash cards, multimedia cards, smart media cards, memory sticks and on USB sticks.
    Said information regarding the functioning of said device according to this particular embodiment relates to useful information regarding the soil treatment. It includes information about the operation of the device and may include information such as, but not limited to, information about the device used to treat the soil, the date and time frame of the machine's operation, the amount of soil , the amount of additives used during the treatment, the weight and / or moisture measurements of the soil, the remaining amount of additives, any errors or defects that might have occurred and / or the location of the device. The information can be provided in a continuous time frame, per hour, per day or per week or another time frame. The information could allow a third party, such as a construction site supervisor, to obtain valuable information regarding the operation of the facility and to provide an electronic logbook that would contain all relevant information regarding the operation of the facility and / or the treated soil . More specifically, the electronic log is a computerized record that records the states, events or simply the conditions used for the device according to the present invention. In the event of discussions and problems concerning the construction using treated soil, the electronic logbook could provide valuable information regarding the functioning of the device used and / or the treated soil.
    Moreover, while working with a known soil treatment device on a frequent basis, soil samples must be taken, the use of means for exporting or transferring information regarding the operation of the device means a significant reduction in the amount of samples. to be taken. Since detailed production reports are obtained that contain information regarding the operation of the soil treatment establishment, it is no longer necessary to take samples on an hourly basis or after treatment of a small amount of soil. It is estimated that the amount of soil samples to be taken and analyzed can be reduced, leading to a cheaper process and design.
    Furthermore, the information regarding the functioning of said device can also contain information about the amount of additives used and the amount of additives that remain in the device. This should allow a site supervisor to order new additives on time, without the device running out of additives. According to a particular embodiment, the device according to the present invention comprises additive storage containers provided with generally known means for measuring the amount of additives in the additive storage containers and means for transferring said information.
    In a particular embodiment of the present invention, the device of the present invention may further comprise means for transferring GPS signals to a computer server, thereby providing information regarding the location of said device. Said means for transmitting GPS signals may, for example, be a GPS tracking system that transmits a continuous signal or transmits a GPS signal after the device was turned on or after the device was turned off. The means for transmitting GPS signals could provide information to a supervisor regarding the location of the device. This is especially useful for very expensive and mobile devices such as the devices of the present invention since these devices are more susceptible to theft. The presence of a GPS locator will allow the owner to determine the location of the device at any time, making the device less attractive to thieves.
    In a particular embodiment, the present invention relates to the use of means for exporting or transferring information regarding the functioning and weight and / or humidity measurements of a soil treatment device, from said soil treatment device to an information carrier or computer device, wherein said soil treatment device comprises means for exporting weight and / or moisture measurements on untreated soil, said means for exporting weight and / or humidity measurements on said untreated soil comprising at least one weight and / or moisture sensor.
    Figure 5 shows a graphical representation of the soil production of a machine during a single day. Figure 5A shows the amount of soil being treated during the entire day, including the fact that the machine stopped working at 2 times during the day (circled areas). Figure 5B shows the amount of binder used during the same time period. From this information it can be determined that the graph follows the graph in Figure 5A, with the exception of the circled area. During the operation of the installation, the soil measurements showed that the soil quality varied per batch, so that various batches of soil required that a larger amount of binding agent was added to the soil than other batches. The device automatically increased the amount of binder added to the soil during operation.
    Figure 6 shows a flow chart of the actions performed by the device according to an embodiment of the present invention where soil is loaded into the device, moisture and weight measurements are performed that are used to mix the untreated soil with additives. optimize, resulting in the treated soil. The information about the soil processing is exported and provides valuable information about the functioning of the device.
    The present invention also relates to a device according to the present invention, wherein said means for exporting weight / moisture measurements on the ground comprises at least one weight sensor and at least one moisture sensor.
    For use in the device according to the present invention, any type of weight sensors known in the art can be used, preferably weight sensors that can measure weight in a continuous manner thereby providing an online weight measurement of the ground. More preferably, one or more load cells are used as weight sensors. A load cell is an inverter that converts power into a measurable electrical output. Although there are many variants of load cells, strain gauge-based load cells are the most commonly used type.
    For use in the device according to the present invention, any type of moisture sensors known in the art can be used, preferably a moisture sensor that allows the measurement of the water content in a continuous manner providing an online measurement of the moisture content of the soil. Preferably, use is made of remote moisture-detecting devices or of devices that make use of optical humidity measurements. The moisture detecting devices include satellite, radar (microwaves) and other non-contact techniques. Remotely detecting the soil humidity depends on the measurement of electromagnetic energy that is reflected or emitted from the ground surface. The intensity of this radiation with soil humidity can vary depending on dielectric properties, soil temperature or some combination of both. For an active radar, the attenuation of microwave energy can be used to indicate the moisture content of porous media because of the effect of the moisture content on the dielectric constant. Thermal infrared wavelengths are commonly used for this measurement.
    The devices using optical humidity measurements refer to methods that measure changes in the characteristics of light due to basic characteristics. These methods involve the use of polarized light, fiber optic sensors, and near infrared sensors. Polarized light is based on the principle that the presence of moisture on a reflection surface tends to cause polarization in the reflected beam. Fiber-optic sensors are based on a section of a fiber embedded in the ground. Light attenuation in the fiber varies with the amount of groundwater in contact with the fiber due to its effect on the refractive index and thus on the critical angle of the internal reflection. Near infrared methods depend on molecular absorption at different wavelengths by water in the surface layers. Typical moisture sensors for use in the devices of the present invention are, for example, near infrared moisture sensors, capacitive moisture sensors, microwave moisture sensors, neutron moisture sensors and the like.
    The present invention relates in a particular embodiment to a device according to the present invention, wherein said device further comprises means for receiving data information from said weight and humidity measurements and for controlling the dosage of additives to said mixing system . The device according to the present invention is therefore provided with means for carrying out this type of control, which can be any type for receiving the information from the sensors and, accordingly, controlling the additive dosage such as, for example, the use of a computer. As a non-limiting example, a Programmable Logic Controller (PLC) or a programmable controller is used to perform the control. PLC refers to a digital computer that is used for automation of electromechanical processes, such as control of machines. PLCs are used in many industries and machines. Unlike general-purpose computers, the PLC is designed for multiple input and output controls, wide temperature ranges, immunity to electrical noise and resistance to vibration and impact. Programs to monitor machine operation are typically stored in a battery-supported or non-volatile memory. A PLC is typically a real-time system since the output results must be produced in response to input conditions within a limited time, otherwise unintended operation will occur.
    The present invention ensures that the weight and / or moisture sensors in the device according to the present invention are positioned such that weight and / or humidity measurements are made on the ground after loading them into the device and prior to entering the soil in the mixing system. The weight and / or humidity measurements therefore provide online information about the flow and humidity of the soil just prior to the injection of the soil into the mixing system, as well as the online control of the soil properties and the online and direct adaptation of the additive dosage to it. mixing system possible. Therefore, the device according to the present invention allows the adjustment of the additive dosage depending on the weight and / or moisture measurements of the soil being treated in the conditioning device. Since it occurs very often that the characteristics of the soil change during the operation of the conditioning device, for example due to the fact that during the operation of the device new soil is loaded into the device, the new soil having different properties, the device provides according to the present invention a high flexibility and allows the adjustment of the additive dosage depending on the soil to be treated and variations of the soil characteristics.
    For example, if new soil is added to the device during operation of the device according to the present invention, the new soil having a higher moisture content, the moisture sensors will automatically check this higher moisture content of the soil and accordingly provide adjustments to the additive dosage.
    The online weight and / or moisture measurements in the device according to the present invention also allow the prevention of waste of additive. Since the additives are highly valuable materials, the online weight measurements ensure that, when the supply of soil ceases, the weight measurements will show a reduction in the flow rate of the soil or even a termination of the flow rate of the soil, whereby information is provided to the additive dosing system to reduce or stop the supply of additives to the mixing system, thereby avoiding wastage of highly valuable materials.
    The present invention also relates to a device according to the present invention wherein said device further comprises means for sieving and refining said untreated soil prior to mixing said soil with said additives.
    Depending on the texture of the untreated soil, it may be necessary to pass the untreated soil through sieving and / or refining agents prior to mixing the soil with additives. If the untreated soil already has a fine texture with small grains and the absence of rocks and stones, sieving is not necessary. However, as is generally the case, the untreated soil can contain large chunks of soil and also rocks and rocks. It may therefore be necessary to sift the soil, especially when using non-stabilized soils. While any type of screening mechanism can be used for this purpose, the inventors have found that a screening table containing rotating screening discs is particularly useful in the apparatus of the present invention.
    The screening table as used in the device according to the present invention comprises a series of shafts on which screening discs are mounted. The shafts can provide a rotational movement through which the screen discs rotate. Preferably at least 2 shafts are arranged one behind the other. More preferably, between 2 and 100 shafts are arranged. The maximum number of axes that is installed in the sieve table is unlimited. Those skilled in the art will know that a larger amount of shafts provided with screen discs will improve the screen capacity of the screen table. In a specific embodiment of the present invention, the screening table is provided with 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 , 27, 28, 29 or 30 axes. Optionally, the screening table can be tilted to improve the screening capacity. The tilting position of the screening table can vary between 0 ° and 45 °, preferably between 0 ° and 40 ° and more preferably between 0 ° and 35 °. When the tilting position of the screening table is 0 °, the screening table is placed horizontally.
    The screen discs are provided with a central hole in which the shafts are mounted and which provides the rotation to the screen discs. The screen discs may have any kind of shape, such as, for example, round, star-shaped, triangular, quadrangular, pentagonal, hexagonal, octagonal or pentagonal. Figure 4 shows screen discs which (a) have a star shape and (b) have a hexagonal shape. Optionally, the screen discs pass through a comb mechanism to remove soil that is stuck to the screen discs. The comb mechanism prevents the screen discs from getting blocked by rocks or stones that are stuck between the screen discs.
    To maintain the flexibility of the device according to the present invention, the rotary shafts with screen discs are removable, thereby providing a highly flexible and adaptive system depending on the characteristics of the soil that requires treatment. The distance between the screen discs on the rotating shaft is also adjustable and can be varied according to the characteristics of the soil that requires treatment.
    Therefore, the present invention further relates to a device according to the present invention, wherein said screening and / or refining means consist of a screening table comprising at least 3 rotating shafts to which screening discs are mounted.
    The present invention further relates to a device according to the present invention, wherein said device further comprises a storage container for soil for the collection of untreated soil and transport means for transporting said untreated soil from said soil storage container to said sieve and / or soil or refining means and for transporting said screened and / or refined soil from said screening and / or refining means to said mixing system.
    Said transport means according to the present invention refer to all transport means suitable for use in the device according to the present invention, such as for instance conveyor belts.
    The present invention relates in a specific embodiment to a device according to the present invention, wherein said means for exporting weight and humidity measurements measure the weight and the moisture of said sieved and / or refined soil.
    When the untreated soil sieves required prior to mixing the soil with the additives, the inventors have determined that the weight and / or humidity measurements should measure the weight and / or the humidity of said sieved and / or refined soil. More in particular, the weight and / or moisture measurements take place during the transport of the screened and / or refined soil from the screening mechanism to the mixing system, and preferably said measurements are made on the transport means that the screened and / or refined soil of the screening table transport to the mixing system. This provides accurate and up-to-date information of the soil entering the mixing system, thereby allowing accurate control of the dosage of the additives to the mixing system.
    The present invention further relates to a device according to the present invention wherein said device comprises a frame that supports all parts of said device and furthermore comprises a motor, a fuel tank, a hydraulic system, a computer or PLC and / or a printed circuit board.
    By providing the device according to the present invention with a framework for supporting all elements of the conditioning device, and also by providing a motor, fuel tank, hydraulic system, a computer or PLC and / or a printed circuit board, the device is according to the present invention, a fully integrated system that enables the efficient transport and the efficiency of the conditioning device.
    The present invention relates to a mobile device that allows transport from the device to the location where the soil requires treatment. Therefore, all components of the device according to the present invention are compact while still maintaining increased efficiency and the capacity to handle difficult soils such as non-stabilized soils that contain, for example, rocks, bricks and / or pieces of concrete. While the device itself can be provided with means of transport such as wheels or tracks, the compactness of the device makes it possible to load the device onto a means of transport or to mount it on a trailer chassis that has a tow bar and a wheel bogie making the device easy to move from place to place can be transported instead. To increase the mobility of the device according to the present invention, the specific parts of the device can be folded. For example, the conveyor belt for removing treated soil, the soil storage container and / or the working platform can be folded to reduce the size of the device, thereby increasing mobility.
    Figures 1 and 2 schematically illustrate the device (1) according to an embodiment of the present invention wherein the device (1) comprises a storage container for soil (2) for the collection of untreated soil, an additive storage container (3) for storing additives, a sieve table (4) on which the untreated soil is sieved, the sieved soil falls through the sieve table (4) onto a conveyor belt (5) which transports the sieved soil to the mixing system (7). During transport from the screened soil to the mixing system (7), the weight and / or the humidity of the screened soil are measured using weight cells and / or a moisture sensor (6). In the mixing system (7) the sieved soil is mixed with additives from a storage container for additives (3) with the aid of a screw propeller (8). The treated soil leaving the mixing system (7) is removed from the device by a conveyor belt for the treated soil.
    Figure 3 schematically illustrates the screening table (4) of the device according to an embodiment of the present invention. The screen table is provided with a series of rotating shafts (11) on which screen discs (12) are provided.
    In another embodiment, the present invention relates to a method for treating soil, and more particularly non-stabilized soil, comprising the following steps: (a) loading untreated soil into a device according to the present invention, wherein said device preferably comprises a storage container for soil; (b) optionally sieving and / or refining said untreated soil; (c) measuring the weight and moisture content of said untreated soil from step (a) and / or said sieved and / or refined soil from step (b); and (d) mixing said untreated soil from step (a) and / or said sieved and / or refined soil from step (b) with additives in a mixing system wherein the measurements according to step (c) control the amount of additives to be mixed with said untreated soil and / or said sieved and / or refined soil.
    Alternatively, instead of controlling the amount of additives that are mixed with said untreated soil, the method can also cause the measurements according to step (c) to control the speed of the conveyor system, thereby controlling the amount of untreated soil entering the mixer , decrease or increase while the amount of additives added to the mixer remains constant.
    The method according to the present invention ensures that in the case that the untreated soil is sufficiently fine, the soil is loaded and the weight and / or moisture characteristics of the soil are measured, followed by mixing the soil with additives. In the case that the untreated soil comprises large chunks of clumped soil which requires refining and sieving, the soil is loaded, sieved and the weight and / or moisture characteristics of the sieved soil are measured, followed by mixing the sieved soil with additives. The measurement of the soil characteristics after sieving on the sufficiently fine soil is important since the inventors have determined that those characteristics can determine the amount of additives to be added to the mixing system.
    The present invention further relates to a method according to the present invention, wherein step (d) comprises the steps (d1) of dosing additives to said mixing system and (d2) of mixing said untreated soil of step (a) and / or said sieved and / or refined soil from step (b) with additives.
    The present invention further relates to a method according to the present invention, wherein the data information of said weight and moisture content measurements in step (c) actively influences the dosage of additives in step (d1). The information of the measurements in step (c) is important and determines whether an adjustment of the dosage of additives in step (d1) is required. A higher flow rate and / or a higher humidity require an increased dosage of additives while a lowered flow rate and / or lower humidity requires a reduced dosage of additives.
    The present invention further relates to a method according to the present invention, wherein step (b) comprises transporting said untreated soil over a screening system, which is provided with one or more screening discs.
    The present invention further relates to a device or method according to the present invention, wherein said soil treatment comprises conditioning, refining or improving soil, such as, for example, cleaning, purification, stabilization, fertilization, remediation or the establishment of a suitable chemical equilibrium of said soil. The present invention further relates to soil obtained according to the method of the present invention.
    In a particular embodiment, the method according to the present invention further comprises a step wherein the information concerning the method of the soil treatment and the weight and / or moisture measurements of the soil are exported or transferred to an information carrier or computer device.
    权利要求:
    Claims (15)
    [1]
    Device for treating soil, comprising means for transporting soil, means for performing weight measurements on untreated soil, means for performing moisture measurements on untreated soil and a mixing system for mixing additives with said soil wherein said means for performing weight and humidity measurements on said untreated soil comprises at least one weight sensor and at least one moisture sensor.
    [2]
    Device as claimed in claim 1, wherein said device further comprises one or more additive storage containers for storing additives and / or means for dosing additives to said mixing system.
    [3]
    Device as claimed in claim 1 or 2, wherein said device further comprises means for exporting or transferring information regarding the functioning of said device and / or the weight and / or humidity measurements of said device, from said device to an information carrier or computer device.
    [4]
    Device according to any of claims 1 to 3, wherein said device further comprises means for receiving data information from said weight and humidity measurements and for controlling the dosage of additives to said mixing system.
    [5]
    The device according to any of claims 1 to 4, wherein said device further comprises means for sieving and refining said untreated soil prior to mixing said soil with said additives.
    [6]
    Device as claimed in claim 5, wherein said device further comprises a storage container for soil for the collection of untreated soil and transport means for transporting said untreated soil from said soil storage container to said screening and / or refining means and for said screened and / or transporting refined soil from said sieving and / or refining agents to said mixing system.
    [7]
    Device as claimed in claim 5 or 6, wherein said means for carrying out weight and moisture measurements measure the weight and the moisture of said sieved and / or refined soil.
    [8]
    Device as claimed in any of claims 5 to 7, wherein said screening and / or refining means consist of a screening table which comprises at least 3 rotating shafts to which screening discs are mounted.
    [9]
    9. Use of means for exporting or transferring information regarding the operation of a soil treatment device and / or the weight and / or humidity measurements performed by said soil treatment device, from said soil treatment device to an information carrier or computer device, wherein said soil treatment device preferably comprises means for performing weight and / or moisture measurements on untreated soil, said means for performing weight and / or humidity measurements on said untreated soil at least one weight and / or humidity sensor.
    [10]
    A method for treating soil, and more particularly non-stabilized soil, comprising the following steps: (a) loading untreated soil into a device according to claims 1 to 8; (b) optionally sieving and / or refining said untreated soil; (c) measuring the weight and moisture content of said untreated soil from step (a) and / or said sieved and / or refined soil from step (b); and (d) mixing said untreated soil from step (a) and / or said sieved and / or refined soil from step (b) with additives in a mixing system. wherein the measurements according to step (c) control the amount of additives that are mixed with said untreated soil and / or said sieved and / or refined soil.
    [11]
    The method of claim 10, wherein step (d) comprises the steps (d1) of dosing additives to said mixing system and (d2) mixing said untreated soil of step (a) and / or said sieved and / or or refined soil from step (b) with additives.
    [12]
    The method of claim 11, wherein the data information of said weight and moisture content measurements in step (c) actively influences the dosage of additives in step (d1).
    [13]
    A method according to any of claims 10 to 12, wherein step (b) comprises transporting said untreated soil over a screening system provided with one or more screening discs.
    [14]
    A method according to any of claims 10 to 13, wherein said soil treatment comprises conditioning, refining or improving soil, such as, for example, cleaning, purification, stabilization, fertilization, remediation or achieving a suitable chemical equilibrium of said soil .
    [15]
    Soil obtained according to the method of any of claims 10 to 14.
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    同族专利:
    公开号 | 公开日
    EP2353740A1|2011-08-10|
    EP2311582A1|2011-04-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5837325A|1995-07-14|1998-11-17|Heacock; Gary E.|Method and apparatus for regulating neutralization of contaminated soil|
    WO2001053012A1|2000-01-21|2001-07-26|Brewer Johathan H|Method and apparatus for treatment and remediation of contaminated soils|
    EP1387009A2|2002-07-30|2004-02-04|Komatsu Ltd|Soil modifying apparatus|
    GB2450341A|2007-06-20|2008-12-24|Aqs Holdings Ltd|Treatment of contaminated soil|
    BR112020007356A2|2017-10-17|2020-10-06|Precision Planting Llc|soil detection system and implements to detect different soil parameters|
    CN110692303B|2019-11-15|2022-02-11|淄博清大粉体材料工程有限公司|Desert planting structure construction device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    EP10151834|2010-01-27|
    EP10151834A|EP2353740A1|2010-01-27|2010-01-27|Mobile device for soil conditioning|
    EP10196845A|EP2311582A1|2010-01-27|2010-12-23|Mobile device for soil conditioning|
    EP10196845|2010-12-23|
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