CN212533285U - Nanoscale polyester staple fiber strand double-weft plain filter cloth and nanoscale filter press - Google Patents
Nanoscale polyester staple fiber strand double-weft plain filter cloth and nanoscale filter press Download PDFInfo
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- CN212533285U CN212533285U CN202020751981.4U CN202020751981U CN212533285U CN 212533285 U CN212533285 U CN 212533285U CN 202020751981 U CN202020751981 U CN 202020751981U CN 212533285 U CN212533285 U CN 212533285U
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Abstract
The utility model discloses a nanoscale polyester staple fiber plied yarn double-weft plain filter cloth and a nanoscale filter press; the filter cloth is woven by warps and wefts; the innovative technical scheme is as follows: the warp adopts 20 counts/6, the twist is 170T/S and the density is 180 counts/10 cm of polyester staple fiber plied yarn, and the weft adopts 20 counts/3, the twist is 360T/S and the density is 215 counts/10 cmThe polyester staple fiber plied yarn; the innovation 2/2 is a one-over-one-under double-weft plain weave structure, namely, a circulation arrangement mode of warps and wefts is as follows: the warp is positioned at the upper layer two wefts of the weft, the warp is positioned at the lower layer two wefts of the weft, and the two warps and the four wefts form a double-weft plain weave circulation; the filter cloth has silk-like appearance, and has the advantages of good trapping performance, good physical and chemical properties, good mechanical properties and good air permeability, and the air permeability is 1L/m2below/S. The nano-scale filter press uses the filter cloth, widens the application range of the filter press, can replace a microporous filter membrane and an ultrafiltration membrane to finely filter suspension liquid of fine particles with larger acidity and smaller than 100nm, and has high production efficiency and good filtering effect.
Description
Technical Field
The utility model belongs to the technical field of nanometer pressure filter, a nanometer strand double weft plain weave micropore filter cloth is related to.
Background
The filter press is a multi-filter chamber pressure filtration device operated intermittently, and the filter medium is a core element of the filter press; the nano-scale filter press is a filter press which uses a nano-scale filter medium and can filter fine particles smaller than 100nm, and is suitable for fine solid-liquid separation of suspensions (mixtures of liquid and solid particles) in industries such as medicine, food, biochemistry and the like.
The filter medium is a porous substance which can lead liquid in the solid-liquid mixture to pass through and filter out solid particles, and is a core element of the filter equipment; the performance (including trapping, penetration, regeneration, physical and chemical properties and mechanical properties) of the filter determines the precision and filtration rate of solid-liquid separation, and directly influences the production capacity and power consumption of the filter equipment.
The types of filter media commonly used in the industry are: firstly, weaving materials such as industrial filter cloth and the like can intercept the particles with the minimum particle size of 5-65 mu m, and the materials have good permeation, regeneration and mechanical properties and are most commonly used in industrial production; secondly, porous solids, such as sintered metals and the like, can retain the smallest particle size of 1-3 mu m and are commonly used for treating suspension containing a small amount of tiny particles; thirdly, stacking media, such as industrial filter paper and other non-woven fiber stacking materials, can filter out 0.1-1 mu m fine particles, have good trapping performance and poor regeneration performance, and are generally used for treating suspension liquid with little solid content; the micro-porous filter membrane and the ultra-filter membrane can filter out nano-scale fine particles with the particle size of 0.01-0.1 mu m, and are used for the industries of medicine, food, biochemistry and the like.
The industrial filter cloth is woven by warps (parallel threads with the cloth edge) and wefts (perpendicular threads with the cloth edge), and the weaving method (weave structure) comprises the following steps: plain weave, twill weave, satin weave, non-woven needle-punched molding; the varieties of warp and weft are: monofilament (a single filament) and multifilament (formed by weaving a plurality of fibers into a single filament), the multifilament being of the type of long fiber, short fiber multifilament, and plied yarn (a plied yarn formed by twisting two or more single yarns); the warp and weft are mostly made of synthetic fiber polypropylene, terylene, chinlon and the like; the filter cloth has different tissue structures, yarn varieties and materials, so that the performance is different, and the filter cloth is suitable for solid-liquid separation of different suspensions through intermediate tests.
The existing industrial filter cloth has the following defects: the filter cloth for replacing a microporous filter membrane and an ultrafiltration membrane to filter nano-scale fine particles is lacked; the twill and satin filter cloth has larger pores and poorer trapping performance, and can only filter micron-sized micro particles; the tightness of the long fiber multifilament filter cloth is poor, and the filtering precision is low; the short fiber multifilament filter cloth has poor regeneration and mechanical properties, is easy to damage and not durable, and has short service life; the physical and chemical properties of the filter cloth for trapping polypropylene and nylon are poorer than those of terylene; can not meet the requirement of fine filtering suspension of fine particles with larger acidity and smaller than 100nm in the industries of medicine, food, biochemistry and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect of current industry filter cloth, solving the technical problem who lacks the filter cloth of filtering nanometer fine particle, providing a nanometer dacron short-staple strand double weft plain weave filter cloth and nanometer pressure filter.
The utility model provides an innovation technical scheme that prior art problem adopted is: a nanometer polyester staple fiber strand double-weft plain filter cloth is woven by warps and wefts, compared with the prior art, the innovative overall structure has the prominent substantive characteristics that the varieties of the warps and the wefts are staple fiber strands and the materials are polyester, and an 2/2-one-up-one-down double-weft plain weaving method (weave structure) is adopted, namely, a circulation arrangement mode of the warps and the wefts is as follows: the warp is positioned at the upper layer two wefts of the weft, the warp is positioned at the lower layer two wefts of the weft, and the two warps and the four wefts form a complete double-weft plain weave circulation; the double-weft plain filter cloth has a silky appearance, small pores and good trapping performance, and is suitable for fine filtering of suspension of fine particles with large acidity and particle size less than 100 nm.
Furthermore, the warp is a short fiber strand with 20/6 yarns, the twist is 170T/S and the density is 180 yarns/10 cm, the short fiber has good compactness and high filtering precision, the strand is strong and wear-resistant, firm and durable, and the short fiber strand improves the trapping and mechanical properties of the filter cloth.
Furthermore, the weft is a short fiber strand with 20 counts/3, 360T/S twist and 215 pieces/10 cm density, the short fiber has good tightness and high filtering precision, the strand is strong, wear-resistant, firm and durable, and the short fiber strand improves the trapping and mechanical properties of the filter cloth.
Furthermore, the warps and the wefts are made of terylene, have good trapping and physical and chemical properties, are heat-resistant and acid-resistant, are smooth in surface after high-temperature shaping and polishing of filter cloth, are easy to clean and remove cakes, are light in weight and breathable, and have the air permeability of 1L/m2below/S, the filtration accuracy and interception rate are extremely high.
Further, the double-weft plain weave structure is an innovative plain weave structure based on a plain weave structure (two warps and two wefts can form a complete plain weave circulation): two warps and four wefts form a complete double-weft plain weave circulation; the plain weave has a plurality of interweaving points, low porosity, small pores and good trapping performance; the double-weft plain weave structure has lower porosity, better trapping performance and improved air permeability.
The utility model also provides a nano-scale filter press, which uses the nano-scale polyester staple fiber strand double-weft plain filter cloth; the filter press mainly comprises a frame, a pressing mechanism, a nano-scale filtering mechanism, a plate pulling mechanism, a cloth washing mechanism, a hydraulic driving mechanism, a PLC program control system and the like; the filter plates are arranged on a cross beam of the filter press, the filter plates are pressed tightly by a pressing mechanism, and the concave parts of the adjacent filter plates which clamp the nano-scale filter cloth form a nano-scale filtering mechanism.
The utility model provides a nanometer polyester staple fiber strand double-weft plain filter cloth and a nanometer filter press, which has the obvious advantages that the double-weft plain filter cloth has the advantages of good trapping performance, good physical and chemical properties, good mechanical properties and good air permeability; the beneficial effects are that improved the filtration precision and the life of plain weave filter cloth, filled the blank of the nanometer compound yarn double weft plain weave filter cloth of our country, widened the filter press application range, can replace millipore filtration membrane and milipore filter membrane fine filtration acidity greatly and be less than 100nm fine particle's suspension, thus improve production efficiency and filter effect.
Drawings
FIG. 1 is a schematic diagram of a pattern plate (weave structure) of the nano-polyester staple fiber plied yarn double-weft plain filter cloth of the present invention.
FIG. 2 is the schematic diagram of the structure of the nano-polyester staple fiber plied yarn double-weft plain filter cloth grain of the present invention.
Fig. 3 is a schematic view of the nano-scale filtering mechanism of the nano-scale filter press of the present invention.
Reference numerals: 1-weft, 2-warp, 11-warp above, 12-warp below, 21-parallel feeding filter plate, 22-parallel filter chamber, 23-nano-grade filter cloth (the utility model), 24-feeding hole end sealing ring, 25-filter chamber feeding main channel, 26-dark effluent main channel, 27-dark flow hole end sealing ring.
Detailed Description
The technical solution of the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiment of the present invention, which is only a preferred embodiment, not all embodiments, of the present invention. Based on the embodiments of the present invention, all other embodiments that are not inventive and are made by the skilled in the art, such as the filter cloth with the same double-weft plain structure, similar strand variety and different material, all belong to the protection scope of the present invention.
Example 1
A nanometer polyester staple fiber strand double-weft plain filter cloth 23 is woven by warps 2 and wefts 1, and the innovative overall technical scheme is as follows: the warp and weft varieties with high compactness and strong wear resistance are optimized, the warp 2 adopts 20 counts/6, the twist degree is 170T/S and the density is 180 counts/10 cm of short fiber strands, and the weft 1 adopts 20 counts/3, the twist degree is 360T/S and the density is 215 counts/10 cm of short fiber strands; preferably, the heat-resistant and acid-resistant warp and weft material with good trapping and physical and chemical properties is terylene; a weave structure (weaving method) with low porosity, small porosity and good trapping performance is innovated, an 2/2 one-over-one-down double-weft plain weave structure is adopted, namely, a circulating arrangement mode of warps 2 and wefts 1 is as follows: the warp yarns 2 are positioned at the upper layer 11 two picks of the weft yarns, the warp yarns are positioned at the lower layer 12 two picks of the weft yarns, and two warp yarns 2 and four weft yarns 1 form a complete double-pick plain weave circulation.
The weaving equipment used was: the multi-denier P1 heavy rapier loom can change the variety rapidly, and the tightness of the fabric is extremely high due to the super-strong beating-up force, the operation is simple and convenient, and the production efficiency is high. The nano-scale filter cloth 23 is smooth in surface after high-temperature shaping and polishing, has a silky appearance, is light and breathable, has the air permeability of below 1L/m2/S, and is named as JJJPE 1822 nano-scale filter cloth 23 by the largest industrial filter cloth manufacturer in the world. Because the filter cloth can be produced in batch mechanically, the production cost is lower than that of a microporous filter membrane and an ultrafiltration membrane.
The nano polyester staple fiber plied yarn double-weft plain filter cloth 23 provided by the utility model has the advantages of good trapping performance, good physical and chemical properties, good mechanical properties and good air permeability through repeated tests; the technical problem that the industrial filter cloth can not filter the suspension liquid of fine particles smaller than 100nm is solved, and cost reduction and efficiency improvement are realized for users.
Example 2
A nanoscale filter press uses the nanoscale terylene short fiber compound yarn double-weft plain filter cloth 23 of the utility model; the filter press is a mechanical, electrical and hydraulic integrated nano-scale automatic filter press intelligently controlled by a PLC; the device mainly comprises a frame, a pressing mechanism, a nano-scale filtering mechanism, a plate pulling mechanism, a cloth washing mechanism, a hydraulic driving mechanism, a PLC program control system and the like; the single operation cycle (pressing of a filter plate, feeding, filtering, squeezing, dewatering, washing, purifying, blow-drying and purifying, material back flushing, cake pulling, filter cloth removing and filter cloth cleaning) is automatically completed by one key under the control of a PLC; is suitable for fine filtering of suspension of fine particles with larger acidity and smaller than 100 nm.
The nanometer level filtering mechanism is the core part of the filter press, and mainly comprises a parallel feeding filter plate 21, a nanometer level filter cloth (the utility model discloses) 23, a feeding hole end sealing ring 24 and a blind flow hole end sealing ring 27. The parallel connection feeding filter plates 21 are provided with filter chamber feeding channels, feeding branch holes, feeding hole end sealing grooves and filter frame sealing surfaces, the end surfaces of the feeding holes are flush with the filter frame sealing surfaces, and the end surfaces of the feeding holes of the adjacent filter plates 21 are sealed; the nano-scale filter cloth 23 is a nano-scale polyester staple fiber plied yarn double-weft plain filter cloth of the utility model; the feed hole end seal ring 24 is a lip-shaped automatic seal ring. The interrelationship of each component element is as follows: the nano-scale filter cloth 23 coats the filter plates 21 to be used as filter media and seal filter frame sealing surfaces of adjacent filter plates, the sealing ring 24 at the end of the feeding hole is arranged in the sealing groove at the end of the feeding hole of the filter plate 21, the concave parts of the adjacent parallel feeding filter plates 21 form a group of parallel feeding filter chambers 22, the filter chamber feeding channels of a plurality of groups of adjacent filter plates 21 are connected into a closed filter chamber feeding main channel 25, and the feeding branch holes are communicated with the feeding main channel 25 and the filter chambers 22; the dark outflow channels of the adjacent filter plates 21 are connected to form a closed dark outflow main channel 26.
The low-pressure static filtering process of the filter press comprises the following steps: the material is pressurized by a feed pump and is input into the parallel filter chambers 22 through the filter chamber feed main channel 25 for low-pressure static filtration, fine particles in the material are intercepted by the nano-scale filter cloth 23 to form filter cakes in the filter chambers 22, the filtrate passes through the nano-scale filter cloth 23 and flows out from the filter chambers 22 through the filter chamber 22 dark outflow main channel 26, and the gravity cake discharge is realized by pulling open the filter plates 21. Because the filter press can perform pressure filtration, squeezing dehydration, washing purification, blow-drying purification, the filter press has higher filtration efficiency and better effect than a microporous filter membrane and an ultrafiltration membrane; when squeezing is needed, high-pressure fluid or gas medium is introduced through the high-pressure medium hole of the chamber to swell the diaphragm to squeeze the filter cake for the second time for dehydration, so that the water content of the filter cake is reduced to the lowest point, and the purity of the filter cake and the recovery rate of filtrate are improved; when washing is needed, the feeding valve is closed, and the water pump injects washing liquid into the filter cake from the washing hole so as to remove soluble impurities in the filter cake or recover valuable mother liquor remained in the filter cake; when the filter cake needs to be dried, compressed air is introduced through the high-pressure medium hole (washing hole), and the air flows through to dry the residual washing liquid in the filter cake particle seam, so that the water content of the filter cake is reduced, and the purity of the filter cake and the recovery rate of mother liquor are improved.
The utility model provides a pair of nano-scale pressure filter has widened the pressure filter range of application, through the experiment repeatedly, is applicable to industries such as medicine, food and biochemistry and replaces millipore filtration membrane and milipore filter, and the great suspension that is less than 100nm fine particle of acid is strained to the essence, has improved production efficiency and filter effect, has filled china's nano-scale pressure filter's blank.
Claims (2)
1. A nanometer polyester staple fiber strand double-weft plain filter cloth is woven by warps and wefts; the method is characterized in that: the warp adopts 20 counts/6, the twist is 170T/S and the density is 180 counts/10 cm of polyester staple fiber plied yarn, and the weft adopts 20 counts/3, the twist is 360T/S and the density is 215 counts/10 cm of polyester staple fiber plied yarn; the innovation 2/2 is a one-over-one-under double-weft plain weave structure, namely, a circulation arrangement mode of warps and wefts is as follows: the warp is positioned at the upper layer two wefts of the weft, the warp is positioned at the lower layer two wefts of the weft, and the two warps and the four wefts form a complete double-weft plain weave circulation; the filter cloth has silk-like appearance and air permeability of 1L/m2under/S, an acidic suspension of fine particles smaller than 100nm can be fine-filtered.
2. A nanoscale filter press comprises a frame, a pressing mechanism, a nanoscale filtering mechanism, a plate pulling mechanism, a cloth washing mechanism, a hydraulic driving mechanism and a PLC program control system; characterized in that the nano-scale polyester staple fiber strand double-weft plain filter cloth is comprised in the nano-scale polyester staple fiber strand double-weft plain filter cloth of claim 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020751981.4U CN212533285U (en) | 2020-05-09 | 2020-05-09 | Nanoscale polyester staple fiber strand double-weft plain filter cloth and nanoscale filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020751981.4U CN212533285U (en) | 2020-05-09 | 2020-05-09 | Nanoscale polyester staple fiber strand double-weft plain filter cloth and nanoscale filter press |
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| Publication Number | Publication Date |
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| CN212533285U true CN212533285U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020751981.4U Active CN212533285U (en) | 2020-05-09 | 2020-05-09 | Nanoscale polyester staple fiber strand double-weft plain filter cloth and nanoscale filter press |
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|---|---|
| CN (1) | CN212533285U (en) |
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Address after: 253000 shoujingjin group, Jinghua Road North, Dezhou Economic Development Zone, Shandong Province Patentee after: Jingjin Equipment Co.,Ltd. Address before: 253000 shoujingjin group, Jinghua Road North, Dezhou Economic Development Zone, Shandong Province Patentee before: Jing Jin Environmental Protection Inc. |
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| CP01 | Change in the name or title of a patent holder |