• 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 invention relates to a dust collector for gaseous fluids and to a method for manufacturing the dust collector. The dust collector, used for removing dust from gaseous fluids containing fine dust, is equipped with a periodic cleaning system and comprises one or more filtering assemblies (1 ) that have filtering elements (2). The filtering elements (2) have a tubular extension and are closed at one end. They are made of a rigid or semirigid filtering material and are kept in contact with each other along a direction parallel to their length; the filtering elements (2) enclose, between them, flow channels (3) open at one end and closed at the end oppositethe end at which the filtering elements (2) are closed. The method for manufacturing a filtering assembly (1 ) of the dust collector comprises the steps of: permanently deforming a sheet of a filtering material so as to obtain a corrugated sheet (8) with a cross-section defined by repetitions of 'Ω-shaped forms that are connected to each other; coupling two deformed sheets, so as to keep the straight parts of the reshaped forms in contact and to obtain rows of filtering elements (2); connecting the various rows of filtering elements to each other, by placing them in contact along generatrices of the elements facing each other; closing the ends of the filtering elements (2) and of flow channels (3) that are formed between the filtering elements.
    公开号:ES2724569A2
    申请号:ES201990057
    申请日:2017-12-22
    公开日:2019-09-12
    发明作者:Vainer Marchesini
    申请人:Wamgroup SpA；
    IPC主号:
    专利说明:

    [0001]
    [0002] Dust collector for gaseous fluid and method for manufacturing said dust collector.
    [0003]
    [0004] The present invention relates to a dust collector for gaseous fluids and a method for manufacturing said dust collector.
    [0005]
    [0006] In particular, reference is made to industrial machines (dust collectors) that process gaseous fluids, normally air contaminated by industrial transformation processes, with the presence of dust in the air in a very significant percentage, this percentage being much higher than the normal presence of dust in the ambient air. The function of using these machines is to treat contaminated industrial air to make it compatible for discharge into the atmosphere and / or in closed work environments.
    [0007]
    [0008] Specifically but not exclusively, the present invention relates to a dust collector that can be used to remove dust from gaseous fluids, gaseous fluids composed of air containing dust generated when silos are loaded or during transformation, movement, cutting or other industrial processes, carried out, for example, through mixers, conveyors, packaging machines, dispensers, mechanical or thermal cutting machines and / or similar devices; These gaseous fluids cannot be discharged into the atmosphere or reused without having previously removed the dust they contain.
    [0009]
    [0010] The dust collectors in question, whose total volume can reach even several cubic meters, are usually carried out with one or several filtration assemblies in each of which there are many filter elements.
    [0011]
    [0012] The filter elements have various shapes and dimensions; generally these elements have a tubular extension and a length of the order of 50 centimeters or more. In their industrial applications, these dust collectors treat air with fine dust content, that is to say dust with a particle size between approximately 0.5 microns and 1000 microns, with concentrations between approximately 0.5 gr / m3 and 500 gr / m3.
    [0013]
    [0014] More particularly, in the field of particulate contaminants, cleaning devices of air are subdivided into two basic groups, namely: air filters and dust collectors. The air filters are designed to remove low concentrations of dust of the magnitude that can be found in the air of the atmosphere. They are typically used in ventilation, air conditioning and heating systems where dust concentrations hardly exceed 1.0 grain per thousand cubic feet of air, and are usually well below 0.1 grains per thousand cubic feet of air .
    [0015]
    [0016] Normally dust collectors are designed for industrial processes where the air or gas to be cleaned has concentrations of pollutants that vary from less than 0.1 to 100 grains or more per cubic foot of air or gas.
    [0017]
    [0018] Therefore, dust collectors are able to treat concentrations in the range of 100 to 20,000 times greater than those for which air filters are designed.
    [0019]
    [0020] Due to the high amount of dust present in the air to be filtered, the filter elements of the dust collector tend to occlude very quickly; therefore, these dust collectors must be combined with automatic or semi-automatic periodic cleaning systems (intervention of the cleaning system at the discretion of the operator and not governed by software).
    [0021]
    [0022] From the original cylindrical fabric sleeve to the current oval shapes made of pleated paper, the state of the art has undergone a continuous evolution of forms of execution designed to increase the filtration surface exposed to the flow of contaminated air, by volume unit of the same dust collector, with advantages in terms of dimensions and costs.
    [0023]
    [0024] Currently, dust collectors are known that include a plurality of tubular filter elements, with circular, oval or polygonal cross-sections, having an open end and a closed end so as to have a side from which only dirty air enters and a side from which only clean filtered air comes out. The outer wrap of these filter elements, which is the filter surface, can be made of fabric or cellulose of different types and can be plain or have pleats; pleats increase the nominal area of the filter surface, but often define, in their cusps, sectors where dust can be hidden. The above makes the area of Active filter surface is smaller, sometimes significantly, than the nominal area of the filter surface. Indeed, the sharp edges of the pleated elements are the starting point of adhesion of the dust and of formation of significant accumulations that obstruct the passage of air.
    [0025]
    [0026] Apart from reducing the area of the filter surface available for air, the dust retained in the pleats is extremely dangerous in the case of applications for the food industry where the accumulation of dust is very harmful due to the risk of proliferation of bacterial load; on the other hand, the pleats are not very functional for all the dust that tends to become overcrowded. However, none of these dust collectors is suitable for filtering wet dust, much less liquid.
    [0027]
    [0028] Depending on the operating mode of the dust collector, the gaseous fluid with the dust to be removed can enter the open end of the filter element, or the dust-free gaseous fluid can exit from the open end of the filter element; in the first case the dust is deposited on the internal surface of the filter element, while in the latter case it is deposited on its external surface.
    [0029]
    [0030] In dust collectors of the known technique, the filter surface is usually combined with a reinforcing structure, inside or outside the filter element, whose task is to prevent, during the operation of the dust collector, any deformation of the filter element that could reduce the area of the filter surface exposed to the fluid stream from which dust should be removed.
    [0031]
    [0032] The constructive solution of these dust collectors must face problems that are typical and specific to the same solution, which, as mentioned above, have considerable dimensions and must filter large amounts of gaseous fluids. For example, it would be convenient to increase the ratio between the active filter surface and the volume of the filter, that is to say it would be convenient to increase the filtration efficiency with respect to other filters of the same type with the same dimensions; It is also imperative, on the other hand, to reduce as much as possible the energy consumption necessary for the operation and cleaning of these dust collectors.
    [0033]
    [0034] Another problem to face is to simplify the construction of dust collectors with respect to the construction methods used to build dust collectors. of the known technique.
    [0035]
    [0036] Some known filters are described in the patent documents EP 0350338, DE3802190, US 2006/0070364. These documents refer to filters intended to be used in the automobile sector, designed to be replaced when the corresponding filtration material becomes dirty beyond an acceptable limit, or possibly to be manually cleaned after disassembling the respective filtration material. brackets
    [0037]
    [0038] The filters described in EP 0350338, DE3802190, US 2006/0070364 are not suitable for use in industrial machines that process gaseous fluids, in which the filtration material gets dirty much faster than in the automobile sector.
    [0039]
    [0040] The objective of the present invention is to provide a dust collector that solves the aforementioned problems pertaining to the known technique in an improved manner with respect to known dust collectors of the same type.
    [0041]
    [0042] An advantage of the present invention is given in the fact of providing a dust collector of reduced dimensions with respect to its active filter surface area.
    [0043]
    [0044] Another advantage of the present invention is given by the fact that it allows efficient cleaning using a cleaning system of small dimensions and operating with low energy waste.
    [0045]
    [0046] Another additional advantage of the present invention is that of having a structure of great strength and resistance, which can be installed in any position with respect to the environment to be purified, which, consequently, leads to several advantages, namely: more lightweight, smaller dimensions, better integration with process machines or industrial systems.
    [0047]
    [0048] Another additional advantage of the present invention is that of providing a method that is simple and quick to manufacture the dust collector in question.
    [0049]
    [0050] These objectives, advantages and still others are achieved by the present invention as it is characterized by the claims set forth below.
    [0051]
    [0052] Other advantages and features of the present invention will become clearer from the following detailed description of the steps of the method in question and the manner of execution of the dust collector in question, illustrated purely by way of illustration and not limiting in the accompanying drawings. , in which:
    [0053]
    [0054] • Figure 1 shows a perspective view from above of a filter assembly of the dust collector in question without the outer wrap;
    [0055] • Figure 2 shows a perspective view from below of a filter assembly of the dust collector in question;
    [0056] • Figure 3 shows a cross section of a filter assembly of the dust collector in question taken along the trace plane III-III of Figure 1;
    [0057] • Figure 4 shows a cross section of a filter assembly of the dust collector in question taken along the trace plane IV-IV of Figure 3;
    [0058] • Figure 5 shows a cross section of a filter assembly of the dust collector in question taken along the trace plane V-V of Figure 3;
    [0059] • Figure 6 shows a perspective view of two corrugated sheets with a section defined by repetitions of type D shapes before connection to form a row of filter elements of the dust collector in question.
    [0060]
    [0061] The dust collector in question is used to remove dust from gaseous fluids containing fine dust; in particular, the dust collector is used to remove dust from the air containing fine dust with a particle size between about 0.5 microns and 1000 microns. These dust collectors can remove dust from fluids, in particular air, contaminated by industrial transformation processes, with the presence of dust with concentrations between approximately 10 mg / m3 and 2000 mg / m3; Due to the presence of high amounts of dust, these dust collectors are always combined with an automatic or semi-automatic periodic cleaning system.
    [0062]
    [0063] In the dust collector in question there is one or several filter assemblies (1) each of which has numerous filter elements (2) with a tubular extension and closed in correspondence of one of its extremities. The filter elements are made of a semi-rigid filter material, of known type, for example, a nonwoven or cellulose fabric.
    [0064] In the following of the present description, reference will be made to a system of Cartesian axes X, Y, Z, where the Z axis identifies the longitudinal direction of the filter elements (i.e. their length), while the X and Y axes define a plane perpendicular to that direction, that is, a plane containing the cross sections of the filter assembly.
    [0065]
    [0066] In the dust collector in question all the filter elements (2) of the same filter assembly are kept in close contact with each other along a direction parallel to their length so as to enclose, among them, flow channels (3) for the gaseous fluid, the flow channels (3) being closed laterally by the external walls of the filter elements; the cross sections of the filter elements (2) and the flow channels (3) define, in their entirety, a cross section, of the filter assembly (1) of which they are part, as a two-dimensional repetition of closed geometric figures. For the operation of the dust collector, as will be better described below, the flow channels (3) are closed in correspondence of the opposite end to the corresponding end of which the filter elements are closed.
    [0067]
    [0068] Each filter assembly (1) comprises at least one elementary filtration cell which in turn comprises four filter elements (2), maintained in reciprocal contact, between the side walls of which a flow channel (3) is defined; The set of elementary filtration cells, connected vertically to each other, defines the overall volume of the filter assembly that can have different shapes and dimensions.
    [0069]
    [0070] It is very convenient to provide a connection of at least some of the filter elements (2) through the interleaving of spacer sections (4); these spacer sections (4) extend along the entire length of the connecting elements that they connect, and have a width such as to cause an increase in the cross-sectional area of a flow channel (3) so as to optimize the gaseous fluid flows from a dirty zone to a purified zone, while offering a lower passage resistance. The lower resistance of passage and the lower residual pressure in the dirty area implies an easy removal of dirt from the filtering surface and, consequently, a better cleaning.
    [0071]
    [0072] In the dust collector in question, the filter elements (2) have a curvilinear cross-section, which is preferably circular but can be configured type groove or elliptical; some filter elements are firmly connected to each other by means of said spacer sections (4), which are arranged on the generatrices of the filter elements; therefore, rows of filter elements are formed, spaced apart from each other and extending along the X axis. Those rows of filter elements separated from each other, which extend along the X axis, are placed juxtaposed according to the direction of the Y axis, and they keep in contact with each other so that each filter element is in contact, along its generatrix, with the generatrix of a filter element of the adjacent row. This conformation allows the filter assembly to function very effectively; in particular, operation is effective when the dust-containing fluid enters the filter elements through its open limb and exits through the filter surface, once the powder has been retained on the inner surface of the filter elements, to flow into the various flow channels through which the dustless fluid is discharged into the atmosphere. In fact, with this configuration the contact surfaces between the different filter elements are optimized, both from the point of view of operation and from the point of view of construction; These contact surfaces extend along the Z axis and are restricted to four generatrices per filter element. The contact surfaces between the various elements have a double thickness that does not allow efficient filtration and causes a reduction in the useful filtration surface. In the dust collector in question, these "double surfaces" are, as mentioned above, reduced to a minimum value since their width has been projected only to have a close contact between the various filter elements.
    [0073]
    [0074] In addition, the curvilinear section of the filter elements prevents zones, which instead are present in pleated filter elements, in which dust can accumulate.
    [0075]
    [0076] The filter elements that belong to the various rows that extend along the X axis are structurally maintained in contact through the spacer sections (4) that connect the various elements. The filter elements of the various rows are kept in contact with the filter elements of the adjacent rows both through gluing and through welding along the contact generatrices or, as will be better described later, through a mechanical link that maintains the filter elements of the several rows compressed together.
    [0077]
    [0078] For the filter assembly, a parallelepiped shape with a polygonal base, in particular A rectangular or square base, as can be seen in the figures, is extremely efficient and easy to construct. The diameters of the cross sections of the filter elements are preferably between 5 and 30 millimeters while the wheelbase between the various filter elements is between once the diameter, for the filter elements connected along the Y axis. , up to twice the diameter for the filter elements connected to each other along the X axis through the spacer sections (4); The length of these last wheelbase depends, clearly, on the length of the various spacer sections (4) that will be between zero and once the diameter of the filter elements. The relationship between the length of the filter element and its diameter is between 15 and 100; it is highly convenient to have a relationship between the length of the filter element and its diameter between 30 and 50. However, it has been found that it is appropriate that the length of the filter elements does not exceed 1200-1500 millimeters.
    [0079]
    [0080] The maximum dimensions of the general section of the filter assembly depends on the extent of the filter surface to be obtained, in relation to the dimensions of the diameters and the lengths of the filter elements chosen in advance. Obviously the dimensions of the filter assemblies must be compatible with the spaces available for placement; However, the configuration of the filter assembly described above provides an excellent relationship between the volume occupied by the assembly and the extent of the useful filter surface obtained.
    [0081]
    [0082] Regardless of the presence of other components of the filter assembly that will be described later and that perform special functions, the structure of the filter assembly in question guarantees excellent performance in terms of rigidity without the need to introduce any type of support or frame. The filter element is not only self-supporting, but also capable of performing structural functions. Your response to the dynamic cleaning request is excellent. This structure is intrinsically rigid when folded, both on the transverse plane and on the longitudinal plane, and on compression in the vertical direction.
    [0083]
    [0084] Each filter assembly (1) comprises an end and a closing bottom that carry out the function of closing the extremities of the filter elements and the flow channels. In particular, there is a top or top part (5) that is arranged in correspondence of one end of the filter assembly and comprising closing capsules (5a), for the closed ends of the filter elements (2), and openings (5b) for the open ends of the flow channels (3); there is also a closing bottom (6) that is arranged in correspondence of the other end of the filter assembly and comprising closing capsules (6a), for the closed ends of the flow channels (3), and openings (6b) for the open limbs of the filter elements (2). The finish (5) and the closing bottom (6) are made of an elastomeric material or plastic polymer.
    [0085]
    [0086] The presence of the auction (5) and the closing bottom (6) makes unnecessary any gluing or welding between the elements of the various rows; the closing capsules (5a and 6a), whose reciprocal positions are fixed and predetermined in relation to the dimensions of the sections of the filter elements and the flow channels, prevent displacements of the rows of filter elements, in particular in the direction Y; the various rows of filter elements, therefore, always remain in close contact with each other along the generatrices of the various reciprocally facing filter elements.
    [0087]
    [0088] However, it is possible to use capsules separated from each other to close the extremities of the filter elements and the flow channels; In the latter case, in addition to greater constructive complexity of the assembly, the rows of filter elements require to be glued or welded.
    [0089]
    [0090] On the end and on the bottom of the closure, gutters have been placed to channel the gaseous fluid, for example, bells not illustrated in the figures, whose function is to channel the gaseous fluid containing dust within the filter assembly and channel the fluid gaseous without dust towards the external part respectively; The channeler that channels the gaseous fluid with dust also has the function, in the cleaning stages of the dust collector, of collecting the dust that is separated from the filter surfaces. In the dust collectors comprising a plurality of filter assemblies, the channelers, furthermore, perform the function of dividers to channel the fluids within the various assemblies.
    [0091]
    [0092] In addition, an outer wrapper (7) is provided in each filter assembly (1), which extends between the cap and the closure bottom and encloses all the filter elements of the assembly. The outer envelope (7) defines other flow channels (3a) for the gaseous fluid between its inner surface and the outer surface of the filter elements that correspond to the periphery of the filter assembly. In this way also the surface External of the filter elements exposed outside the filter assembly is isolated from the dusty area, where there is contaminated air, so that the external filter surface can be used to collect dust, thus creating a corresponding flow channel for clean air. With this wrapper the density of the useful surface area per unit volume increases even more. This outer wrap contributes to further increase the compression stiffness of the assembly, as well as to have its own stiffness, since it keeps the various filter elements compressed together.
    [0093]
    [0094] Since the filter assembly (1) is submerged in a dusty environment, the closure bottom (6) is shaped so as not to create dust accumulation zones, which cannot be cleaned by automatic or semi-automatic cleaning systems. Therefore, the closure bottom (6) will follow the outer profile of the wrapper (7).
    [0095]
    [0096] In addition, the dust collector comprises a cleaning system for cleaning the filter assembly (1). In particular, the cleaning system is configured to clean the components of the filter assembly (1) on which the powder is deposited. Therefore, the cleaning system is configured to clean the filter elements (2), if the fluid to be cleaned enters the filter elements (2) through its open extremities and the clean fluid leaves the flow channels (3 ) after having retained the dust on the inner surface of the filter elements (2).
    [0097]
    [0098] In an alternative operating configuration, in which the fluid to be cleaned enters into the flow channels (3) and the clean fluid leaves the filter elements (2), the cleaning system, on the other hand, is configured to clean the flow channels (3), on whose internal surfaces (ie, on the external surface of the filter elements (2)), the powder has been deposited.
    [0099]
    [0100] The cleaning system can be pneumatic.
    [0101]
    [0102] In particular, the cleaning system may include a blowing device for supplying one or more jets of pressurized air on a filter surface of the filter elements (2) that holds the dust. These air jets act on the filter surface in countercurrent with respect to the fluid to be treated.
    [0103]
    [0104] This type of cleaning system can be combined with dynamic devices, that is vibrating devices, which help the dust to separate from the filter surface.
    [0105]
    [0106] Alternatively, the blowing device may comprise a plurality of dispensing elements, each of which is shaped as a tube suitable for being introduced into a component for cleaning (i.e., within a filter element (2) or alternatively within a flow channel (3)) to supply a low pressure air jet directly on the component to be cleaned, in countercurrent with respect to the fluid to be cleaned.
    [0107]
    [0108] Alternatively, the cleaning system can be mechanical.
    [0109]
    [0110] In the latter case, the cleaning system may include a vibrating device to cause the vibration of a structure, in particular a metal structure, which structure supports the filter elements (2). In this way, the respective filter surface is also forced to vibrate, which causes the separation of dust particles from the filter surface.
    [0111]
    [0112] Likewise, it is possible to use impact cleaning system systems, that is to say cleaning systems provided with an element with a considerable mass that is accelerated until it has such a moment to cause a collision on the support structure of the filter elements (2 ). Subsequently, the latter are set in motion, until the respective filter surface is cleaned.
    [0113]
    [0114] In addition, the collision can be repeated more than once, in order to improve the cleaning effect, but this device differs significantly from the vibrating device that continuously causes vibrations. Likewise, a system based on a vibrating device transfers the dynamic effect to the structure through its connection with the same structure, without impact phenomena.
    [0115]
    [0116] The cleaning system is of the periodic type, that is, it does not act continuously on the filter assembly (1), but only intervenes at predetermined times.
    [0117]
    [0118] The cleaning system can be automatic, that is, it comprises a cleaning device and software that, apart from activating the cleaning device, decides when the cleaning device should be activated.
    [0119] As an alternative, the cleaning system can be semi-automatic, that is to say provided with a cleaning device whose intervention is decided by an operator, instead of being governed by software.
    [0120]
    [0121] In any case, the cleaning device is configured to act on the filter assembly (1) in an assembled configuration, that is to say a configuration in which the cross sections of the filter elements (2) and the flow channels (3) they define, in its entirety, a cross section of the filter assembly formed as a two-dimensional repetition of closed geometric figures.
    [0122]
    [0123] In particular, the cleaning system is configured to act on the filter assembly (1) while the rows of filter elements (2) are in contact with each other, at least in the direction of the Y axis. In some cases, the cleaning system It can be operated after the end (5) and / or the bottom (6) have been removed, however, it is not imperative to remove the outer wrap (7) and also do not separate the rows of filter elements (2).
    [0124]
    [0125] This allows the cleaning operations of the filter assembly (1) to be extremely simple and fast.
    [0126]
    [0127] As mentioned above, the dust collector in question may have one or more filter assemblies; The method of manufacturing these filter assemblies, which will be described later, is very simple.
    [0128]
    [0129] A sheet of semi-rigid filtration material (such as a nonwoven or cellulose fabric) is permanently deformed, so as to obtain a corrugated sheet (8) with a cross section defined by repetitions of type D shapes connected between yes; then two deformed sheets in this way are coupled, with the hollow parts of the configured type D shapes facing each other, gluing and welding such sheets so as to join the rectilinear parts of the type D shapes and obtain rows of filter elements spaced apart between yes and connected by means of spacer sections (4) formed by the parts that come together. Theoretically, the presence of the backing (5), the closing bottom (6) and the wrapping (7) could make unnecessary gluing or welding between the corrugated sheets that form the rows of elements, since the presence of the closure (5), the closure bottom (6) and the wrapper (7) keeps the set of corrugated sheets compact inside; This solution, however, may not provide fully satisfactory operation, particularly in the case of food products.
    [0130]
    [0131] To obtain a filter assembly, the various rows of filter elements are subsequently connected to each other, joining them by gluing or welding on the generatrices of the elements facing each other or holding them together in order to ensure contact between the elements of the various rows. Then, the ends of the filter elements and the flow channels are closed, for example, with a closure and a closing bottom, such as those of the type described above.
    [0132]
    [0133] In this filter assembly the gaseous fluid from which the dust has to be removed is brought in from the open ends of the filter elements (2); The dust-free fluid exits the filtration tissue that retains the solid particles, and is ejected from the filter assembly through the flow channels (3). Periodically, with automatic or semi-automatic programmed cleaning systems, the particles retained by the filter elements are removed to release the filter surfaces and allow the correct removal of dust from the fluid.
    [0134]
    [0135] The filter assembly in question has a high value of the area of the filter surface per unit volume; this, therefore, offers notable advantages in terms of dimensions and costs. Also, the rigidity of the structure of the assembly allows cleaning operations to be carried out quickly and easily.
    [0136]
    [0137] The structure of the filter elements allows the contaminated fluid to flow into the elements without reaching vertices or bottlenecks, therefore, without the danger of forming accumulations that obstruct the passage of the fluid and reduce the area of the effective filter surface. Also, the presence of spacer sections (4) makes it possible to increase the section of the flow channels by preventing unwanted counterpressures of the dust-free fluid in correspondence of the outlet of the filter elements.
    权利要求:
    Claims (16)
    [1]
    1. Dust collector for gaseous fluids, of a type to be used to remove dust from gaseous fluids containing fine powders originating in industrial processes, comprising:
    - one or more filter assemblies (1), each of which has a plurality of filter elements (2) that extend tubularly and closed in correspondence of a limb, where:
    - the filter elements are made of a rigid or semi-rigid filter material; - all the filter elements (2) of the same filter assembly (1) are kept in contact with each other along a direction parallel to their length, so as to enclose between them closed flow channels (3), opened in correspondence of one limb, for the gaseous fluid;
    - the cross sections of the filter elements (2) and the flow channels (3) define, in their entirety, a cross section of the respective filter assembly (1) as a two-dimensional repetition of closed geometric figures;
    - the flow channels (3) are closed in correspondence of the opposite end to the end in which the filter elements (2) are closed, and - at least some of the filter elements (2) are connected to each other by interleaving of spacer sections (4), which extend along the entire length of the filter elements connected by the spacer sections (4),
    The dust collector further comprising a cleaning system for automatic or semi-automatic periodic cleaning of said one or more filter assemblies (1).
    [2]
    2. Dust collector according to claim 1, wherein said spacer sections (4) are arranged on generatrices of the filter elements (2) so as to form rows of filter elements (2).
    [3]
    3. Dust collector according to claim 2, wherein said rows of filter elements (2) are arranged parallel to a first axis (X) and are placed juxtaposed in a direction perpendicular to the first axis (X), so that each element filter (2) is in contact, along its generatrix, with a generator of an adjacent filter element (2).
    [4]
    4. Dust collector according to claim 2, wherein the filter elements (2) have a curvilinear cross section; the rows of filter elements (2) are kept in contact with each other so that, along a generatrix, each filter element (2) comes into contact with the generator of a filter element (2) of the adjacent row.
    [5]
    5. Dust collector according to claim 1, wherein each filter assembly (1) comprises:
    - a cap (5) arranged in correspondence of one end of the filter assembly (1) and comprising closing capsules (5a) for the closed ends of the filter elements (2), the cap (5) having openings (5b) for the open limbs of the flow channels (3);
    - a closing bottom (6) arranged in correspondence of the other end of the filter assembly (1) and having closing capsules (6a) for the closed ends of the flow channels (3), the closing bottom (6) presenting openings (6b) for the open ends of the filter elements (2).
    [6]
    6. Dust collector according to claim 5, wherein the closure bottom (6) is delimited by a profile tangent to the filter elements (2) on a first axis (X) and sufficient to accommodate a spacer section (4) on the second axis (Y) so as to prevent dust from depositing, said second axis (Y) being arranged perpendicular to said first axis (X).
    [7]
    7. Dust collector according to claim 5, wherein each filter assembly (1) comprises an outer wrapper (7) that extends between the cap (5) and the closure bottom (6) and encloses all the filter elements ( 2) of the filter assembly (1), and where other flow channels for the gaseous fluid are defined between the filter elements (3) and an inner surface of the outer casing (7).
    [8]
    8. Dust collector according to claim 1, wherein the cross section of the filter elements (2) is circular and each filter element (2) has a section transverse with a diameter preferably between 5 and 30 millimeters; the relationship between the length of a filter element (2) and its diameter being between 15 and 100.
    [9]
    9. Dust collector according to claim 1, wherein the length of the spacer sections (4) is greater than zero and less than or equal to once the diameter of the filter elements (2).
    [10]
    10. Dust collector according to claim 1, characterized in that the length of the filter elements (2) is less than 1500 millimeters.
    [11]
    11. Dust collector according to claim 2, wherein the filter elements (2) are made by coupling sheets of nonwoven or cellulose tissue that are permanently deformed so that their cross section is defined by repetitions of type D shapes that come connected to each other.
    [12]
    12. Dust collector according to claim 4, wherein said closure (5) and said closure bottom (6) are made of an elastomeric material or plastic polymer.
    [13]
    13. Method for manufacturing a filter assembly (1) of a dust collector according to claim 1, comprising the following steps:
    - permanently deforming a sheet of rigid or semi-rigid filtration material so as to obtain a corrugated sheet (8) with a cross section defined by repetitions of type D shapes that are connected to each other;
    - with hollow parts of the type D shapes facing each other, couple the two deformed sheets in this way, so as to keep the rectilinear parts of the type D shapes in contact and obtain rows of filter elements (2) separated from each other. and connected by means of spacer sections (4) formed by the parts that are kept in contact with each other;
    - connect the several rows of filter elements to each other, putting them in contact along generatrices of the elements facing each other;
    - close the extremities of the filter elements (2) and the flow channels (3) formed between the filter elements,
    where the cross sections of the filter elements (2) and the flow channels (3) define, in their entirety, a cross section of the filter assembly (1) as a two-dimensional repetition of closed geometric figures.
    [14]
    14. Method according to claim 13, wherein the contact between the rectilinear parts of the type D shapes and the rows of filter elements (2) is obtained by means of gluing or welding.
    [15]
    15. Method according to claim 13, wherein the contact between the rectilinear parts of the type D shapes and the rows of filter elements (2) is obtained by means of a mechanical link.
    [16]
    16. The method according to claim 15, wherein the contact between the rectilinear parts with type D shapes and the rows of filter elements is obtained by means of the introduction of closing capsules (5a, 6a) in correspondence of one end of the elements Filters (2) and in correspondence of the opposite end of the flow channels (3), the reciprocal positions of said closing capsules (5a, 6a) being fixed and predetermined in accordance with the dimensions of the cross sections of the filter elements (2) and the flow channels (3).
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    同族专利:
    公开号 | 公开日
    GB201908821D0|2019-08-07|
    SE543412C2|2021-01-05|
    KR20190094428A|2019-08-13|
    AU2017383538A1|2019-07-04|
    SE1950864A1|2019-07-08|
    JP2020514050A|2020-05-21|
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    RU2019120418A|2021-01-22|
    CO2019007447A2|2019-08-20|
    CN110248719A|2019-09-17|
    ES2724569R1|2019-09-17|
    PL431684A1|2021-01-11|
    CN110248719B|2022-02-25|
    IT201600130256A1|2018-06-22|
    US20200086260A1|2020-03-19|
    MX2019007559A|2019-10-15|
    BR112019012902A2|2019-12-03|
    RU2019120418A3|2021-01-22|
    WO2018116268A1|2018-06-28|
    CZ2019404A3|2019-08-14|
    CN208018283U|2018-10-30|
    DE112017006479T5|2019-09-12|
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    法律状态:
    2019-09-12| BA2A| Patent application published|Ref document number: 2724569 Country of ref document: ES Kind code of ref document: A2 Effective date: 20190912 |
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    优先权:
    申请号 | 申请日 | 专利标题
    IT102016000130256A|IT201600130256A1|2016-12-22|2016-12-22|DUST REMOVER FOR GASEOUS FLUIDS AND METHOD OF REALIZING IT|
    PCT/IB2017/058346|WO2018116268A1|2016-12-22|2017-12-22|A dust collector for gaseous fluids and a method for manufacturing the dust collector.|
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