CN114712936B - Complete set of single-filament filter cloth, single-multifilament filter cloth and diaphragm filter press for corresponding white carbon black - Google Patents
Complete set of single-filament filter cloth, single-multifilament filter cloth and diaphragm filter press for corresponding white carbon black Download PDFInfo
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- CN114712936B CN114712936B CN202110000729.9A CN202110000729A CN114712936B CN 114712936 B CN114712936 B CN 114712936B CN 202110000729 A CN202110000729 A CN 202110000729A CN 114712936 B CN114712936 B CN 114712936B
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- 239000004744 fabric Substances 0.000 title claims abstract description 157
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract description 35
- 239000006229 carbon black Substances 0.000 title abstract description 34
- 239000004743 Polypropylene Substances 0.000 claims abstract description 24
- -1 polypropylene Polymers 0.000 claims abstract description 24
- 229920001155 polypropylene Polymers 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 238000009941 weaving Methods 0.000 claims abstract description 12
- 230000035699 permeability Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 abstract description 35
- 239000012528 membrane Substances 0.000 abstract description 23
- 230000005532 trapping Effects 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 230000001172 regenerating effect Effects 0.000 abstract description 6
- 239000000725 suspension Substances 0.000 abstract description 6
- 230000000295 complement effect Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 20
- 230000008929 regeneration Effects 0.000 description 14
- 238000011069 regeneration method Methods 0.000 description 14
- 239000007788 liquid Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 238000009940 knitting Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
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- 238000002474 experimental method Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 1
- LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
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- 239000011858 nanopowder Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/002—With diagonal warps or wefts
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a complete set of single-filament filter cloth, single-multifilament filter cloth and a corresponding membrane filter press for white carbon black, which has the main points of the innovation scheme that: the monofilament filter cloth is preferably thinner 0.15mm polypropylene monofilaments, has higher warp and weft densities, and innovates a 4/4 twill weaving mode; the single multifilament filter cloth is preferably thicker 0.24mm polypropylene monofilaments and polypropylene multifilament with 1000 denier and 110T/S twist of long fibers, has smaller warp and weft density and is innovated in a 3/2 twill weaving mode; the two filter fabrics of the complete set have complementary characteristics and have the comprehensive performance required by high-efficiency fine filtration of the white carbon black suspension. The membrane filter press for the white carbon black uses the two filter fabrics of the complete set, wherein, the single-filament filter fabrics are matched with a membrane filter plate, and the single-multifilament filter fabrics are matched with a matched filter plate; solves the technical problems that single monofilament twill filter cloth or single double silk twill filter cloth is difficult to have good trapping, penetrating and regenerating performances and cannot meet the requirements of high-efficiency and precise large-scale filtration in the white carbon black industry; the comprehensive filtering effect and the production efficiency of the membrane filter press are improved.
Description
Technical Field
The invention belongs to the technical field of membrane filter presses (patent classification number B01D 25/12), and relates to a complete set of precision filter cloth.
Background
The filter press is a pressurized filtration device with a plurality of filter chambers intermittently operated; the membrane filter press is a filter press which is formed by alternately arranging a plurality of membrane filter plates, filter cloth and matched filter plates (no membrane filter plates), wherein the filter chamber is used for primary low-pressure static filtration and secondary high-pressure bulge membrane press filter cake dehydration; the membrane filter press for white carbon black is a special precision membrane filter press for producing white carbon black (also called hydrated silica and silica gel particles, which are additives prepared by finely processing sericite as a main raw material, and is amorphous porous fine powder or nano powder with strong surface adsorption force and higher viscosity); mainly comprises a double-beam frame, a hydraulic pressing mechanism, a squeezing and filtering mechanism, a precise filter cloth, a pulling plate mechanism, a cloth washing mechanism, a liquid receiving and turning plate mechanism and a PLC program control system; the method is suitable for solid-liquid separation of white carbon black suspension (mixture of liquid and solid particles).
Industrial filter cloth, which is both a filter medium and a sealing gasket of an adjacent filter plate, is a core element of a filter press and is woven by warp yarns (wires parallel to the cloth edges) and weft yarns (wires perpendicular to the cloth edges); the knitting mode (organization structure) is as follows: knitting with plain, twill and satin, and non-woven needling; the varieties of warp and weft yarns are: monofilaments (one filament) and multifilaments (made of one filament composed of a plurality of fibers), the types of multifilaments including long-fiber multifilaments, short-fiber multifilaments, and plied yarns (strands formed by twisting two or more single yarns); the warp yarns and the weft yarns are mainly made of synthetic fibers such as polypropylene fibers, polyester fibers, chinlon fibers and the like; the structure of the filter cloth, the yarn variety and the material are different, the performances are quite different, and the filter cloth is suitable for solid-liquid separation of different suspensions through an intermediate test. The performance (including trapping, permeation, regeneration, physical and chemical, mechanical properties) of the filter cloth determines the accuracy and filtration rate of solid-liquid separation, and also directly influences the production capacity and power consumption of the filtration equipment.
The existing white carbon black precise filter cloth has the following defects: 1. because the white carbon black has strong surface adsorption capacity, high viscosity and large membrane swelling force, the common monofilament twill filter cloth has lower trapping performance and influences the filtering precision in order to ensure the permeation, regeneration and mechanical properties of the filter cloth; 2. the trapping performance of the single-composite double-silk twill filter cloth is improved, but the existing filter cloth weaving mode (weave structure) ensures that the filter cloth has lower permeation and regeneration performance, is easy to block and difficult to cake, and influences the production efficiency; 3. the existing single white carbon black precise filter cloth cannot meet the requirements of high-efficiency precise large-scale filtration in the modern white carbon black industry; is a technical problem which is always desired to be solved but is not successful all the time.
Disclosure of Invention
The invention aims to overcome the defects of the existing white carbon black precise filter cloth, solve the technical problems that single-filament twill filter cloth or single-compound double-filament twill filter cloth is difficult to have good trapping, penetrating and regenerating performances and cannot meet the requirements of high-efficiency and precise large-scale filtration in the white carbon black industry, and provide a complete set of single-filament filter cloth, single-multifilament filter cloth and corresponding membrane filter press for white carbon black through repeated experiments; the complete set-refers to two matched filter fabrics, namely, a monofilament filter fabric-refers to a monofilament twill filter fabric matched with a diaphragm filter plate, and a single multifilament filter fabric-refers to a single-compound double-wire twill filter fabric matched with a matched filter plate.
The innovative technical scheme adopted for solving the problems in the prior art is as follows: a complete set of single-filament filter cloth and single-multifilament filter cloth (hereinafter referred to as complete set of filter cloth), the main points of the overall technical scheme are as follows: compared with the prior art, the innovative overall structure has the outstanding essential characteristics that: 1. the single white carbon black precise filter cloth which is used by matching the diaphragm filter plate of the diaphragm filter press and the matched filter plate is innovated into two sets of single-filament precise filter cloth and single-multifilament precise filter cloth which are matched with the diaphragm filter plate and the matched filter plate respectively, so that the filter plate has good trapping, penetrating, regenerating and mechanical properties and meets the requirements of high-efficiency and precise large-scale filtration in the white carbon black industry. 2. Further optimizing the variety of the filter cloth yarns: the monofilament filter cloth is preferably thinner 0.15mm monofilament; the single multifilament filter cloth is preferably thicker 0.24mm monofilaments and multifilament with 1000 denier and twist of 110T/S of long fibers; the trapping performance and the filtering effect are improved while the permeation, regeneration and mechanical properties are ensured. 3. Improved structure of filter cloth (knitting mode): the monofilament filter cloth adopts a 4/4 twill weave structure, so that the trapping performance is improved; the single multifilament filter cloth adopts a 3/2 twill weave structure, and the permeability and the regeneration performance are improved seriously. Therefore, the technical problems that single-filament twill filter cloth or single-compound double-filament twill filter cloth is difficult to have good trapping, penetrating and regenerating performances and cannot meet the requirements of high-efficiency and precise large-scale filtration in the white carbon black industry are solved.
The specific design scheme is as follows: the complete set of filter cloth is formed by matching single-filament filter cloth and single-multifilament filter cloth, and the single-filament filter cloth and the single-multifilament filter cloth are respectively reasonably matched with a membrane filter plate and a matched filter plate of the membrane filter press; the matching mode is strong, namely the monofilament filter cloth with good mechanical property and high strength is matched with the diaphragm filter plate with high-pressure drum expansion force.
The monofilament filter cloth, namely the monofilament twill filter cloth matched with the diaphragm filter plate is formed by interweaving warp and weft in a changing way; the warp yarn is 0.15mm polypropylene monofilament, and the warp density is 1200 warp yarns/10 cm; the weft is a polypropylene monofilament with the thickness of 0.15mm, and the weft density is 440 yarns/10 cm; the structure of the filter cloth is as follows: the 4/4 twill weaving mode is adopted, namely, the single cycle arrangement mode of warps and wefts is as follows: the warp yarn is positioned at the upper layer four wefts of the weft yarn, and the warp yarn is positioned at the lower layer four wefts of the weft yarn; the cloth cover is smooth and has finer inclined lines; the air permeability is (40-60)%, the permeability is good, the regeneration is good, the mechanical property is good, the strength is high, and the trapping performance is improved.
The single multifilament filter cloth, namely the single double silk twill filter cloth matched with the matched filter plate is formed by warp and weft in a changing and interweaving way; the warp yarn is 0.24mm polypropylene monofilament, and the warp density is 500 warp yarns/10 cm; the weft is a polypropylene long fiber multifilament with 1000 denier and twist of 110T/S, and the weft density is 150 yarns/10 cm; the structure of the filter cloth is as follows: the 3/2 twill weaving mode is adopted, namely, the single cycle arrangement mode of warps and wefts is as follows: the warp yarn is positioned at the upper layer three wefts of the weft yarn, and the warp yarn is positioned at the lower layer two wefts of the weft yarn; the cloth cover is smooth and has thicker inclined lines, has strong trapping capacity and better mechanical property, and effectively improves the permeation and regeneration performances.
The invention also provides a membrane filter press for white carbon black, which uses the single-filament filter cloth and the single-multifilament filter cloth of the complete set of the invention; the filter press mainly comprises a double-beam frame, a hydraulic pressing mechanism, a squeezing and filtering mechanism, a complete set of filter cloth, a pulling plate mechanism, a cloth washing mechanism, a liquid receiving and turning plate mechanism and a PLC program control system; the single-filament filter cloth is matched with the diaphragm filter plate, the single-multifilament filter cloth is matched with the matched filter plate, and a plurality of diaphragm filter plates, the filter cloth and the matched filter plate are alternately arranged to form a filter chamber of the squeezing filter mechanism.
The complete set of single-filament filter cloth, single-multifilament filter cloth and corresponding membrane filter press for white carbon black provided by the invention have the remarkable progress that the complete set of filter cloth has complementary performances and good trapping, permeation, regeneration, physical and chemical properties and mechanical properties; the beneficial effects are that: 1. the filter cloth yarn variety is optimized, and the single-double yarn is adopted to improve the trapping performance and the filtering effect; 2. by improving the structure (knitting mode) of the filter cloth, the permeation performance, the regeneration performance and the production efficiency are improved; 3. the two filter fabrics of the innovative complete set are reasonably matched with the complete set of diaphragm filter plates and the complete set of filter plates respectively, unexpected technical effects are achieved, the requirements of high-efficiency and precise large-scale filtration in the white carbon black industry are met, the blank that the complete set of filter fabrics are used in the diaphragm filter press in China is filled, the technical problems that people are always eager to solve but are always unsuccessful are solved, and the comprehensive filtration effect and the production efficiency of the diaphragm filter press are improved.
Drawings
FIG. 1 is a schematic representation of the pattern of a monofilament filter cloth of the present invention in the form of a monofilament filter cloth set and a multifilament filter cloth set.
FIG. 2 is a schematic diagram showing the texture structure of monofilament filter cloth of the monofilament filter cloth and the monofilament multifilament filter cloth of the complete set of the invention.
FIG. 3 is a schematic representation of the pattern of a single multifilament filter cloth of the present invention in the form of a monofilament filter cloth set and a single multifilament filter cloth set.
FIG. 4 is a schematic drawing showing the texture of a single multifilament filter cloth of the present invention.
Reference numerals: 1-warp, 2-weft, 11-warp above weft, 12-warp below weft.
Detailed Description
The technical solutions according to the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the set of single-filament filter cloths and single-multifilament filter cloths and the corresponding membrane filter press for white carbon black, which are only preferred embodiments of the present invention, but not all embodiments. All other embodiments, such as a set of single multifilament filter cloths with the same collocation and similar weaving, which are not inventive by a person skilled in the art based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
A complete set of single-filament filter cloth and single-multifilament filter cloth (short for the complete set of filter cloth), the main points of the innovative overall implementation scheme are as follows: (1) The single white carbon black precise filter cloth which is used by matching the diaphragm filter plate of the diaphragm filter press and the matched filter plate is innovated into two sets of single-filament precise filter cloth and single-multifilament precise filter cloth which are matched with the diaphragm filter plate and the matched filter plate respectively, so that the filter plate has good trapping, penetrating, regenerating and mechanical properties and meets the requirements of high-efficiency and precise large-scale filtration in the white carbon black industry. (2) further optimizing the variety of the filter cloth yarns: the monofilament filter cloth is preferably thinner 0.15mm monofilament; the single multifilament filter cloth is preferably thicker 0.24mm monofilaments and multifilament with 1000 denier and twist of 110T/S of long fibers; the trapping performance and the filtering effect are improved while the permeation, regeneration and mechanical properties are ensured. (3) improving the structure of the filter cloth (knitting mode): the monofilament filter cloth adopts a 4/4 twill weave structure, so that the trapping performance is improved; the single multifilament filter cloth adopts a 3/2 twill weave structure, and the permeability and the regeneration performance are improved seriously. The specific embodiments are described in detail as follows:
the monofilament filter cloth, namely the monofilament twill filter cloth matched with the diaphragm filter plate, is formed by changing and interweaving warp 1 and weft 2 as shown in figures 1 and 2; the warp 1 is a polypropylene monofilament with the thickness of 0.15mm, and the warp density is 1200 warp yarns/10 cm; the weft yarn 2 is a polypropylene monofilament with the thickness of 0.15mm, and the weft density is 440 yarns/10 cm; the monofilament filter cloth has good mechanical property and high strength so as to adapt to the high-pressure bulging force of the diaphragm filter plate; the thinner monofilaments properly reduce the porosity of the filter cloth and improve the trapping performance and the filtering effect. The structure of the filter cloth is as follows: the 4/4 twill weaving mode is adopted, namely, the single cycle arrangement mode of warps and wefts is as follows: warp yarn 1 is located at the upper layer four weft yarns of weft yarn 2 (warp yarn is located above weft yarn 11), and warp yarn 1 is located at the lower layer four weft yarns of weft yarn 2 (warp yarn is located below weft yarn 12); the cloth cover is smooth and softer and has finer inclined lines; the twill filter cloth has larger porosity and better air permeability, the air permeability is (40-60)%, and the requirement of high-efficiency filtration of white carbon black is met.
The single multifilament filter cloth, namely the single double silk twill filter cloth matched with the matched filter plate is formed by changing and interweaving warp 1 and weft 2 as shown in figures 3 and 4; the warp 1 is a polypropylene monofilament with the thickness of 0.24mm, and the warp density is 500 warp/10 cm; the weft 2 is a polypropylene long fiber multifilament with 1000 denier and twist of 110T/S, and the weft density is 150 yarns/10 cm; the thicker monofilaments have good mechanical properties and high strength, and meet the requirements of matched filter plate squeezing and filtering; the long fiber multifilament has strong trapping capability and enhances the filtering effect (precision). The structure of the filter cloth is as follows: the 3/2 twill weaving mode is adopted, namely, the single cycle arrangement mode of warps and wefts is as follows: warp yarn 1 is positioned at the upper layer three weft yarns of weft yarn 2 (warp yarn is positioned above weft yarn 11), and warp yarn 1 is positioned at the lower layer two weft yarns of weft yarn 2 (warp yarn is positioned below weft yarn 12); the cloth cover is smooth and harder, has thicker inclined lines, has larger porosity and better air permeability, and meets the requirement of high-efficiency filtration of white carbon black.
The polypropylene material is polypropylene monofilament and polypropylene long fiber multifilament, and has light weight (0.91 g/cm) 3 ) Good permeability, high efficiency, good regeneration, easy cake removal, good physical and chemical properties, wear resistance and corrosion resistance, and strong mechanical properties (long fiber is 5-8 g/denier); the polypropylene filter cloth is suitable for high-efficiency fine filtration of white carbon black suspension.
The weaving equipment used was: jing Jin environmental protection stock company is the biggest filter cloth weaving company worldwide at present, uses the heavy rapier loom of donil P1, can change the variety fast, and superstrong beating-up force makes fabric compactness extremely high, easy and simple to handle, and production efficiency is high. The developed complete set of monofilament filter cloth and single multifilament filter cloth has smooth surface and compact cloth quality after high temperature setting and polishing.
The complete set of monofilament filter cloth and the complete set of multifilament filter cloth provided by the invention have complementary performances and good trapping, permeation, regeneration, physical and chemical properties and mechanical properties; the complete set of filter cloth is matched with the complete set of diaphragm filter plates and the complete set of filter plates respectively, so that the technical problems that single-filament twill filter cloth or single-compound double-filament twill filter cloth is difficult to have good trapping, penetrating and regenerating performances and cannot meet the requirements of high-efficiency and precise large-scale filtration in the white carbon black industry are solved; the comprehensive filtering effect and efficiency of the filter cloth are improved, and the filter cloth is successful in commerce.
Example 2
A membrane filter press for white carbon black uses the single-filament filter cloth and single-multifilament filter cloth (simply referred to as the filter cloth); the filter press is an automatic membrane filter press with integrated mechanical, electric and hydraulic functions and intelligent control by a PLC; the device mainly comprises a double-beam frame, a hydraulic pressing mechanism, a squeezing and filtering mechanism, a complete set of filter cloth, a pulling plate mechanism, a cloth washing mechanism, a liquid receiving turning plate mechanism, a PLC program control system and the like; is suitable for high-efficiency fine solid-liquid separation of white carbon black suspension. The invention shares the technical part with the prior art, and is based on the 1 st part of the Van-type filter press and the plate-and-frame filter press which are the current standards of the mechanical industry in China: pattern and basic parameters "section 2: technical conditions "section 3: filter plate, section 4: the membrane filter plate is manufactured in JB/T4333-2013.
The squeezing and filtering mechanism is a core component of the filter press and mainly comprises parts such as an end-to-end anti-corrosion plate, a diaphragm filter plate, a matched filter plate, a complete set of filter cloth, a clamping distributor, a hole end sealing ring, a filter plate supporting handle and the like. The complete set of filter cloth comprises single-filament filter cloth and single-multifilament filter cloth, is a key element of a filter mechanism, and is a filter medium and a sealing element of a sealing surface of a frame of an adjacent filter plate. Assembling a complete set of filter cloth and related parts: the sealing rings at the hole ends are arranged in sealing grooves at the functional hole ends of the filter plates, the monofilament filter cloth is hung and fixed on two sides of the diaphragm filter plates, the single multifilament filter cloth is hung and fixed on two sides of the matched filter plates, the clamping distributor is arranged on the filter plate feeding holes to clamp the filter cloth on two sides of the filter plates and penetrate through filter chambers on two sides of the filter plates, the filter plate handles are symmetrically arranged at the middle upper parts (arranged above the center of gravity of the filter plates) on two sides of the filter plates, a plurality of diaphragm filter plates, the filter cloth and the matched filter plates are alternately arranged on a filter press beam, the filter plates are compressed through the compression mechanism, and the concave parts of adjacent filter plates clamping the complete filter cloth form the compression filter mechanism.
The low-pressure static filtration process of the membrane filter press is as follows: the material is shunted to the filter chamber (between two filter cloths) through the feeding main channel by the pressurization of the feeding pump, low-pressure static filtration is carried out, particles in the material are trapped by the filter cloths to form a filter cake in the filter chamber, filtrate flows out from the liquid outlet main channel of the filter chamber (between the filter plates) through the filter cloths, and the filter plates are pulled open to realize gravity cake discharging. The single complete operation cycle working process of the filter press is as follows: compacting a filter plate, feeding at low pressure, maintaining pressure, filtering, turning over a plate to receive liquid, squeezing, dehydrating, washing, purifying, back blowing materials, drying, purifying, pulling a plate, discharging cakes and cleaning filter cloth; through the PLC control system, single operation cycle is automatically completed by one key; intermittent reciprocating circulation work is realized, and solid-liquid separation of batch fine materials (white carbon black suspension) is realized.
The membrane filter press for the white carbon black has the beneficial effects that through repeated experiments: 1. the complete set of monofilament filter cloth and the complete set of multifilament filter cloth have complementary performances and good trapping, permeation, regeneration, physical, chemical and mechanical properties; 2. the two sets of filter cloth are matched with the diaphragm filter plate and the matched filter plate respectively, unexpected technical effects are achieved, the requirements of high-efficiency and precise large-scale filtration in the white carbon black industry are met, the blank that the diaphragm filter press in China uses the set of filter cloth is filled, the technical problems that people are always eager to solve but fail to obtain all the time are solved, the comprehensive filtration effect and the production efficiency of the diaphragm filter press are improved, and the economic benefit of users is remarkable.
Claims (1)
1. A complete set of monofilament filter cloth and multifilament filter cloth, characterized in that: the monofilament filter cloth, namely the polypropylene monofilament twill filter cloth matched with the diaphragm filter plate, is formed by interweaving warp and weft in a changing way; the warp yarn is 0.15mm polypropylene monofilament, and the warp density is 1200 warp yarns/10 cm; the weft is a polypropylene monofilament with the thickness of 0.15mm, and the weft density is 440 yarns/10 cm; the structure of the filter cloth is as follows: the 4/4 twill weaving mode is adopted, namely, the single cycle arrangement mode of warps and wefts is as follows: the warp yarn is positioned at the upper layer four wefts of the weft yarn, and the warp yarn is positioned at the lower layer four wefts of the weft yarn; the cloth cover is smooth and has finer inclined lines, and the air permeability is 40% -60%; the single multifilament filter cloth, namely the polypropylene single double silk twill filter cloth matched with the matched filter plate, is formed by warp and weft changing interweaving; the warp yarn is 0.24mm polypropylene monofilament, and the warp density is 500 warp yarns/10 cm; the weft is a polypropylene long fiber multifilament with 1000 denier and twist of 110T/S, and the weft density is 150 yarns/10 cm; the structure of the filter cloth is as follows: the 3/2 twill weaving mode is adopted, namely, the single cycle arrangement mode of warps and wefts is as follows: the warp yarn is positioned at the upper layer three wefts of the weft yarn, and the warp yarn is positioned at the lower layer two wefts of the weft yarn; the cloth cover is smooth and has thicker oblique lines; the density of the polypropylene monofilament and the polypropylene long fiber multifilament is 0.91g/cm 3 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| WO1998009707A1 (en) * | 1996-09-09 | 1998-03-12 | Tamfelt Oy Ab | Method of producing filter bags, and a filter bag |
| CN102199831A (en) * | 2011-06-07 | 2011-09-28 | 大连华隆滤布有限公司 | Filtering cloth woven from monofilaments and multifilaments |
| CN202105518U (en) * | 2011-05-03 | 2012-01-11 | 大连华隆滤布有限公司 | Special filter cloth for fine iron powder industry |
| CN202187121U (en) * | 2011-05-06 | 2012-04-11 | 大连华隆滤布有限公司 | Monofilament and multifilament interweaved monofilament double-layer filter cloth |
| CN102527152A (en) * | 2012-01-03 | 2012-07-04 | 金宝顺 | Filter cloth for extracting electrolytic copper liquid after electronic waste incineration |
| CN203639645U (en) * | 2013-09-18 | 2014-06-11 | 辽宁博联过滤有限公司 | Woven industrial filter cloth adopting wrap yarns |
| CN110158220A (en) * | 2019-06-28 | 2019-08-23 | 景津环保股份有限公司 | It is single to answer mariages satin weave filter cloth and its weaving method |
| CN210765694U (en) * | 2019-06-28 | 2020-06-16 | 景津环保股份有限公司 | Satin filter cloth with single and multiple double-thread variable interweaving |
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2021
- 2021-01-04 CN CN202110000729.9A patent/CN114712936B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998009707A1 (en) * | 1996-09-09 | 1998-03-12 | Tamfelt Oy Ab | Method of producing filter bags, and a filter bag |
| CN202105518U (en) * | 2011-05-03 | 2012-01-11 | 大连华隆滤布有限公司 | Special filter cloth for fine iron powder industry |
| CN202187121U (en) * | 2011-05-06 | 2012-04-11 | 大连华隆滤布有限公司 | Monofilament and multifilament interweaved monofilament double-layer filter cloth |
| CN102199831A (en) * | 2011-06-07 | 2011-09-28 | 大连华隆滤布有限公司 | Filtering cloth woven from monofilaments and multifilaments |
| CN102527152A (en) * | 2012-01-03 | 2012-07-04 | 金宝顺 | Filter cloth for extracting electrolytic copper liquid after electronic waste incineration |
| CN203639645U (en) * | 2013-09-18 | 2014-06-11 | 辽宁博联过滤有限公司 | Woven industrial filter cloth adopting wrap yarns |
| CN110158220A (en) * | 2019-06-28 | 2019-08-23 | 景津环保股份有限公司 | It is single to answer mariages satin weave filter cloth and its weaving method |
| CN210765694U (en) * | 2019-06-28 | 2020-06-16 | 景津环保股份有限公司 | Satin filter cloth with single and multiple double-thread variable interweaving |
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| CN114712936A (en) | 2022-07-08 |
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