• 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:
    Process for dewatering thickened sludge comprising the steps of depositing thickened sludge onto a porous support, partially dewatering the thickened sludge by establishing a vacuum within said porous support, compressing the partially dewatered sludge on said porous support at a pressure of from 1 to 10 kp/cm2 to further dewater the sludge and to form a sludge cake, compressing the sludge cake on the porous support at a pressure of from 10 to 300 kp/cm2 to further dewater the sludge cake and discharging the dewatered sludge cake from the porous support.
    公开号:SU973007A3
    申请号:SU762438801
    申请日:1976-12-23
    公开日:1982-11-07
    发明作者:Фрик Мадсен Руд
    申请人:Актиесельскабет Де Данске Суккерфабриккер (Фирма)；
    IPC主号:
    专利说明:

    DESCRIPTION
    Inventions
    TO THE PATENT
    Union of Soviet
    Socialist
    Republic <4) 973007
    (61) Additional to the patent - (22) Declared 12/23/76 (21) 2438801 / 28-27 (23) Priority - (32) 12/23/75 (31) 52 660 (33) United Kingdom
    Posted on 07.1 ί.82; Bulletin K
    Date of publication of the description 09.11.82 (51) M. Cl 3
    30V 9/08
    С 13 С 3 / 0.0 (53) UDC 621.979 (088.8) (72) Author of the invention
    Foreigner Rud Frick Madsen (Denmark) su (71) Applicant iL · · Τ '' 'τ, τ p:
    Foreign company I 4 Τί; ·; ;
    Aktieselskabet de Danske Sukkerfabrikker & i: y, (Denmark) ----- LLLLL-1
    (54) METHOD FOR REMOVING LIQUID FROM ITS CONTAINING MATERIALS IN THE FORM OF DENSE SUSPENSION AND DEVICE FOR ITS IMPLEMENTATION
    The invention relates to the field of mechanical engineering and can be used in the production of sugar from beets.
    A known method of removing liquid from materials containing it in the form of a condensed suspension by pressing a material placed on a porous base, followed by removal of the compressed material from the base £ 1].
    The method is carried out by the device. containing porous bases for accommodating the pressed material, mounted around the circumference on the hollow axis with the possibility of rotation, and a pressing head with framing elements.
    The disadvantage of this method is that the concentration of solid particles in the pressed material is low due to the inability to create a reliable insulation between high and low pressure zones when it is pressed.
    2
    The gap of the invention is an increase in the concentration of solid particles in the compressed material.
    This is achieved by the fact that according to the method of removing liquid from the materials containing it in the form of a condensed suspension by pressing a material placed on a porous base, followed by removal of the pressed material from said base, before pressing, the liquid is partially removed from the material by creating a vacuum from the side of the base, after which the material is pressed, 5 at a pressure of 1-10 kg / cm 2 until a Filter-fresh cake is formed and then pressed at a pressure of 30300 kg / cm
    The vacuum from the base side is maintained during the pressing of ma. terial.
    The material is placed on the base by dipping it in a container with liquid-containing material, while maintaining vacuum from the side of the base during this period.
    Compressed material is removed by creating a pressure higher than atmospheric from the base side.
    A device for implementing this method, containing porous bases for accommodating the extrudable material, rotatably mounted around the hollow axis, and a pressing head with framing elements, equipped with drives' for moving the framing elements, the bases are made in the form of hollow brackets and hollow disks, and the pressing head is made in the form of plates arranged on both sides of the disks and drives for their movement.
    The device is equipped with a container with liquid-containing material mounted under the bases, and the hollow axis is horizontal.
    Hollow brackets and a hollow axis are connected by channels for supplying compressed air and creating a vacuum from the side of the bases.
    In addition, it is equipped with filters placed between the bases and the extruded extruded plates. ·
    In FIG. a device for removing liquid from materials containing it; in FIG. 2 - one of the main. vanii and a pressing head; in Fig.Z-- ; longitudinal section along the base · and pressing plates (on the left is a pressing plate with a gap between it and the base, on the right - in a closed state, i.e. at the end of pressing)).
    The device consists of a horizontal hollow axis 1 mounted on a bed with the possibility of rotation, on which the porous bases 2 of the pressing head 3 are mounted around the circumference, with framing elements 4, a container 5 for a liquid-containing material (suspension) 6 is installed. under the bases 2, as well as drives 7 moving framing elements 4.
    The base 2 is made in the form of hollow brackets 8 and hollow disks 9, and the pressing head is made in the form of pressing plates 10 placed on both sides of the disks 9.
    The hollow brackets 8 and the hollow axis 1 are connected by channels 11 for supplying material, and also between the material and the presses is schematically depicted for implementing the compressed air method and creating a vacuum from the side of the base 2. Between the bases 2 and the pressed material, as well as between the pressed material and the pressing plates 10 placed filters 12.
    The tank 5 is connected to a pump 13 for supplying a thickened slurry and is equipped with a drain pipe 14 mounted above the funnel 15, which is connected to the pump. Two trays 16 are also fixed on the bed, between which the bases 2 pass during their rotation. Hydraulic cylinders 17 are designed to move the pressing plates 10, and the drive 7 for moving the framing elements 4 is made in the form of hydraulic cylinders 18.
    On the surface of the bases 2, there are concentric grooves 19 connected to the cavity by ducts 20. Filters 12 are made in the form of disks 21 of a porous material coated with a filter cloth 22.
    Press plates have channels 23 that can be connected. _P_ device for creating a vacuum or with a source of compressed air. The framing elements 4 have pads 24, ensuring the alignment of the pressing plates and bases.
    The device operates as follows.
    When the bases 2 pass through the container 5, the condensed slurry 6 contained in it is sucked onto the porous surface due to the vacuum from the base side, which is supported by moving the base to the pressing head. The rotation of axis 1 is intermittent. When placing the base between the pressing plates 10, the framing elements 4 are brought into motion, which are brought into contact with the boundary regions of the porous bases.
    Then, when moving the pressing plates, the material located on the base is compressed, and the liquid squeezed out of the material is removed through the channel 11 due to the constantly maintained vacuum. The pressing plates are returned to their original position, the axis 1 is rotated, and compressed air is supplied to the porous bases through the channel 11 due to which dry filterpress cakes are separated from the filters 12 and fall on the trays 16.
    Material pressing is carried out in two stages. At the beginning of the material
    973007 6 is compressed at a pressure of 1-10 kg / cm 2 , so that the layers of the material are partially dehydrated. With this initial compression, the structure of the material layer changes and the initial mass turns 5 into a hard, rigid cake. Subsequently, the pressure rises to 30300 kg / cm 2 · and an additional liquid is removed. Between the pressing plate and the framing elements there can be 10 significant clearance without the risk of extruding the pressed material through it.
    The economic effect of the implementation of the invention is ensured by increasing the concentration of solid particles in the pressed material.
    权利要求:
    Claims (3)
    [1]
    during this period, the vacuum from the base. The compressed material is removed from the base by a pressure above the atmospheric pressure. A device for carrying out this method, comprising porous bases for accommodating a pressed material, mounted circumferentially on a hollow axis rotatably, and a pressing head with framing elements, is equipped with movement drives of framing elements, the bases are in the form of hollow mattes and hollow discs, and the pressing head is made up of pressure plates placed on both sides of the discs and their movement drives. The device is equipped with a container with a liquid-containing material installed under the bases, and the floor axis is horizontal. The hollow brackets and the floor axis are connected by channels for supplying compressed air and creating a vacuum from the base. In addition, it is equipped with filters, placed bases and a compression material, as well as between the compression material and pressure plates. In FIG. Figure 1 shows schematically an apparatus for carrying out the method of removing liquid from materials containing it; in fig. 2 — one of the bases and the pressing head; in FIG. 3 there is a longitudinal section through the basement and end plates (on the left is a compact plate with a gap between it and the base, on the right in a closed state, i.e., at the end, pressing}). The device consists of a horizontal hollow axis 1 mounted on a frame that can rotate around the circumference of the porous bases 2 of the pressing head 3, with the framing elements of the container 5 for the liquid-containing material (suspension 6 installed under the bases 2, and also The displacement elements of the framing elements k are found in the base 7. The bases 2 are made in the form of floor brackets 8 and hollow disks 9. And the pressing head is made in the form of press 3 plates 10 placed on both sides of the disk 3 and the floor axis 1 channels 11 for supplying compressed air and creating a vacuum on the side of the base 2. Filters 12 are placed between the base 2 and the pressed material, as well as between the pressed material and the pressing plates 10. The tank 5 is connected to the pump 13 for supplying the thickened suspension and is equipped with waste tube I installed above the funnel 15, which is connected to the pump. Two chutes 16 are also fixed on the bed, between which the bases 2 pass while rotating the pressure plates 10, and the drive 7 The elements of the frame A are designed in the form of hydraulic cylinders 18. Concentric grooves 19 are connected to the surface of the bases 2, connected to the cavity by channels 7.P. Filters 12 are made in the form of discs 21 of porous material covered with filter cloth 22. Pressing the plate has channels 23 that can be connected with a device for creating a vacuum or with a source of compressed air. The framing elements 4 have a lining 2, ensuring the alignment of the pressing plates and the bases. The device works as follows. With the passage of the bases 2 through the container 5, the condensed suspension 6 in it is sucked into the porous surface due to the vacuum from the bases supported by the movement of the base to the pressing head. The rotation of axis 1 is intermittent. When the base is placed between the pressing plates 10, the framing elements 4 are set in motion, which are brought into contact with the boundary regions of the porous bases. Then, when moving the pressing plates, the material on the base is compressed, and the liquid squeezed out of the material due to the constantly maintained vacuum is removed through channel 11. The pressing plates return to their original position, axis 1 is rotated, and through channel 11 compressed air is supplied, whereby the dry filter press cakes are separated from the filters 12 and fall into the trays 16. The material is compressed in two stages. At the beginning the material is compressed at a pressure of 1-10 kg / cm, so that the layers of material astichno obezpozhivaots. In this initial compression, the structure of the layer of material changes and the initial mass turns into a hard, hard cake. Subsequently, the pressure increases to 30,300 kg / cm and additional liquid is removed. There can be a considerable gap between the pressing plate and the framing elements without the risk of vanishing the pressed material through it. The economic effect of implementing the invention is provided by increasing the concentration of solid particles in the compressed material. Claim 1. A method for removing a liquid from materials containing it in the form of a thickened suspension by pressing a material placed on a porous base, with the subsequent removal of the compressed material from that base, so that the concentration of solid particles in the compacted material, before pressing, the liquid is partially removed from the material by creating a vacuum -eo side of the base, after which the material is compressed at a pressure of 1-10 kg / cm to form a filter press cake and then pressed it at a pressure of 30-300 kg / cm.
    [2]
    2. Method pop. , it is also distinguished by the fact that the base vacuum is maintained during the process of pressing the material.
    [3]
    3. Method according to paragraphs. 1 and 2, characterized in that the material is placed on the base by dipping it into a container with a material containing liquid, while maintaining a vacuum from the side of the base during this period. . The method according to PP, 1-3 | This is due to the fact that the compressed material is removed by creating from the base side a pressure exceeding the atmospheric pressure. 5. A device for carrying out the method according to claim 1, comprising porous bases for accommodating compressible material, mounted circumferentially on a hollow axis with WHO AUXILIARY rotation, and a pressing head with framing elements, characterized in that it is equipped with movement drives of framing elements The bases are made in the form of hollow crowns and hollow disks, and the pressing head is made in the form of pressure plates placed on both sides of the disks and the drives of their movement. 6. The device according to claim 5, distinguishes itself with the fact that it is provided with a container with a liquid-containing material installed under the bases, and the floor axis is horizontally positioned. 7. The device according to claim 5 of tl and moreover, that the hollow brackets and the floor axis are connected by channels for supplying compressed air and creating a vacuum on the side of the bases. 8. The device according to claim 5, characterized in that it is provided with filters placed between the bases and the compression material, as well as between the compression material and the compression plates. Sources of information taken into account in the examination 1, USSR Author's Certificate No., cl. B 30 V 9/08, TNZ; (prototype). .
     eight
    13
    sixteen
    fig 1
    类似技术:
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    同族专利:
    公开号 | 公开日
    CS195320B2|1980-01-31|
    FR2351780A1|1977-12-16|
    BE849802A|1977-04-15|
    YU313876A|1982-05-31|
    DK149208B|1986-03-17|
    DE2658578C2|1985-09-19|
    DE2658578A1|1977-07-07|
    CH601013A5|1978-06-30|
    FR2351780B1|1982-04-09|
    JPS5281768A|1977-07-08|
    AT371361B|1983-06-27|
    JPS6110165B2|1986-03-28|
    IT1065749B|1985-03-04|
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    NL7614241A|1977-06-27|
    SE427622B|1983-04-25|
    SE7614457L|1977-06-24|
    FI65710B|1984-03-30|
    US4092247A|1978-05-30|
    DK582176A|1977-06-24|
    YU43439B|1989-08-31|
    PL110870B1|1980-08-30|
    FI763674A|1977-06-24|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE309039C|
    US761686A|1902-02-08|1904-06-07|Michael Kirshner|Apparatus for extracting oil.|
    DE657163C|1935-03-16|1938-02-25|Westfalia Dinnendahl Groeppel|Filter device for viscous masses working with negative and positive pressure|
    GB695605A|1950-08-05|1953-08-12|Johann Hoffmann|Pressure filtering process and apparatus|
    DE1028091B|1956-04-20|1958-04-17|Krauss Maffei Imp G M B H & Co|Method and device for treating the filter cake located on rotary filters|
    DE1461511A1|1965-04-20|1969-03-13|Karl Weinhold|Disc filter|
    US3552454A|1968-10-22|1971-01-05|William A Deming Sr|Can filler|
    DE2021389A1|1970-01-23|1971-08-19|Brecht Walter Prof Dr Ing|Continuous two directional dehydration ofsludge|
    US3772144A|1971-04-14|1973-11-13|Improved Machinery Inc|Apparatus and method for thickening and washing suspensions containing fibrous material|US4740315A|1984-09-04|1988-04-26|Sune Backman|Filter system for wire electronic discharge machining|
    US4836937A|1986-03-04|1989-06-06|General Signal Corporation|System for removing liquid from a slurry of liquid and powdered material|
    FI80386C|1988-05-06|1990-06-11|Valmet Paper Machinery Inc|Filtration method and apparatus for use in the process|
    US5269945A|1988-06-01|1993-12-14|Glenn Holmberg|Method and a device for the separation of bodies from a liquid|
    US4927547A|1988-10-26|1990-05-22|Sune Backman|Method of filtering the effluent from a wire EDM process|
    NO901889L|1989-05-10|1990-11-12|Albert Baehr|PROCEDURE FOR AND ROOM FILTER PRESSURE FOR WATER DRAINAGE AND SIMILAR SUBSTANCES.|
    US5355594A|1992-12-21|1994-10-18|Daekyoo Hwang|Evaporative sludge stabilization|
    WO2002057190A1|2001-01-19|2002-07-25|Willie Stroup|Apparatus and methods for separating liquids from solids|
    JP4521222B2|2004-05-20|2010-08-11|株式会社不動テトラ|Classification device, method|
    CN112696880A|2020-12-28|2021-04-23|丹东绿清环境工程技术有限公司|Vacuum rotary dehydrator|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB5266075|1975-12-23|
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