CN214415821U - Nylon monofilament satin-weave coal washing filter cloth and corresponding coal washing filter press - Google Patents
Nylon monofilament satin-weave coal washing filter cloth and corresponding coal washing filter press Download PDFInfo
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- CN214415821U CN214415821U CN202120039017.3U CN202120039017U CN214415821U CN 214415821 U CN214415821 U CN 214415821U CN 202120039017 U CN202120039017 U CN 202120039017U CN 214415821 U CN214415821 U CN 214415821U
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Abstract
The utility model discloses polyamide fibre monofilament satin coal washing filter cloth and corresponding coal washing pressure filter, the main points of innovation scheme are: (1) improving the weaving mode of the filter cloth: adopts a satin weave structure with three upper parts and two lower parts, namely the warp and weft single cycle arrangement mode is as follows: the warp is positioned on the upper layer three wefts of the weft, and the warp is positioned on the lower layer two wefts of the weft; optimizing the permeability performance of the composite material; (2) optimizing the variety of filter cloth yarns: properly increasing the warp density of the filter cloth and thickening the weft yarns, namely the warp yarns are 0.22mm monofilaments and the warp density is 600Per 10 cm, 0.26mm monofilament for weft, 168 weft/10 cm for weft density, and preferably selecting nylon material with appropriate physical and chemical properties to optimize the mechanical properties; the surface of the filter cloth is smooth, and the air permeability is 1600 plus 1800L/m2(ii) S; the technical problems of poor permeability, low filtration efficiency, poor mechanical property and short service life of the conventional coal washing filter cloth are solved. The filter cloth is used by the coal washing filter press, so that the special requirement of continuous high-efficiency production of modern large-scale coal washing plants on easily damaged elements of the filter press core is met, the cost is reduced, and the efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the pressure filter of washing coal (patent classification number B01D 25/12), a monofilament filter cloth for washing coal (patent classification number D03D 15/00) is related to.
Background
The filter press is a pressurized filtering device with multiple filtering chambers operated intermittently; the automatic filter press is a filter press which is integrated mechanically, electrically and hydraulically and intelligently controlled by a PLC (programmable logic controller); an automatic filter press for coal washing, which is a special automatic filter press for coal slime dehydration in a coal washing plant; the system mainly comprises a double-beam frame, a hydraulic pressing mechanism, a filtering mechanism, coal washing 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 coal slime suspension liquid (mixture of liquid and solid particles).
The industrial filter cloth is not only a filter medium, but also a sealing gasket of an adjacent filter plate, is a core element of a filter press, and is woven by warp (a line parallel to a cloth edge) and weft (a line vertical to the cloth edge); the knitting method (weave structure) includes: plain weave, twill weave and satin weave, wherein the twill filter cloth has high porosity and good air permeability, and the satin filter cloth is smooth and has the best air permeability; the varieties of warp and weft are: monofilament (one filament) and multifilament (woven by a plurality of fibers forming one filament), the monofilament filter cloth has good permeability, good reproducibility and high strength, but has poor trapping capability; the warp yarns and the weft yarns are mainly made of synthetic fibers such as polypropylene fibers, terylene and chinlon, the polypropylene fibers have good permeability and regeneration performance, the terylene has good trapping and physical and chemical properties, and the chinlon has good mechanical properties; 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 performance of the filter cloth (including trapping, penetration, regeneration, physical and chemical properties and mechanical properties) determines the precision and filtration rate of solid-liquid separation, and also directly affects the production capacity and power consumption of the filtration equipment.
The existing coal washing filter cloth has the following defects: 1. the existing monofilament twill filter cloth has the defects of low porosity, low air permeability, easy blockage, low filtering speed, less feeding and thin filter cake, and the permeability and the filtering efficiency of the existing monofilament twill filter cloth cannot meet the requirement of high-efficiency production of a modern large-scale coal washing plant; 2. the existing monofilament filter cloth has the advantages of low warp density, thin weft yarn, easy damage of the filter cloth, short service life, frequent replacement of the filter cloth, shutdown and error production, and mechanical property and service life which can not meet the requirement of long-time continuous production of a modern large-scale coal washing plant; moreover, the monofilament variety and the longitude and latitude density used by the existing monofilament filter cloth are not optimized, the filter cloth trapping performance is lower, and the filtering effect is not good; these are all the core vulnerable components of the equipment which needs to be solved urgently for cost reduction and efficiency improvement of the modern large-scale coal washing plant.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect of current coal washing filter cloth, solving current monofilament twill filter cloth permeability relatively poor, filtration efficiency is lower, mechanical properties is relatively poor, the shorter technical problem of life, provides a polyamide fibre monofilament satin coal washing filter cloth and corresponding coal washing pressure filter.
The utility model provides an innovation technical scheme that prior art problem adopted is: a chinlon monofilament satin coal washing filter cloth (hereinafter referred to as monofilament satin filter cloth) has the key points of the overall technical scheme that: compared with the prior art, the innovative overall structure has the prominent substantive characteristics that: 1. improve the filter cloth organizational structure (weave mode): by adopting a satin weave structure with three upper parts and two lower parts, the permeability, the air permeability and the filtering efficiency of the filter are optimized on the premise of taking the trapping performance and the filtering effect into consideration; 2. optimizing the variety of filter cloth yarns: on the premise of considering both permeability and filtration efficiency, the warp density of the filter cloth is properly increased, weft yarns are thickened, and a nylon material with proper physical and chemical properties is selected, so that the mechanical properties and the service life of the filter cloth are optimized; therefore, the technical problems that the existing monofilament twill filter cloth is poor in permeability, low in filtering efficiency, poor in mechanical property and short in service life are solved.
The specific design scheme is as follows: the monofilament satin filter cloth consists of warps and weftsAre formed by variable interweaving; the warp threads are 0.22mm chinlon monofilaments, and the warp density is 600 threads/10 cm; the weft is 0.26mm of nylon monofilament, and the weft density is 168 pieces/10 cm; the organization structure of the filter cloth is as follows: adopting a satin weaving mode of three-over-two, namely a warp and weft single-cycle arrangement mode as follows: the warp is positioned on the upper layer three wefts of the weft, and the warp is positioned on the lower layer two wefts of the weft; the warp yarn is characterized in that interweaving points are discontinuous, some warp yarns float on the surface of the cloth, and the tightness deviation of the warp yarns on the front side and the back side of the fabric is small; the regeneration performance of the easy-to-remove cake with smooth cloth surface is good, the permeability is excellent and the air permeability is (1600 plus 1800) L/m2and/S, is suitable for solid-liquid separation of coal slime or sludge suspension (mixture of liquid and solid particles).
The utility model also provides a coal washing filter press, which uses the polyamide monofilament satin coal washing filter cloth of the utility model; the filter press mainly comprises a double-beam frame, a hydraulic pressing mechanism, a high-efficiency filtering mechanism, monofilament satin filter cloth, an automatic plate pulling mechanism, an automatic cloth washing mechanism, a liquid receiving and plate turning mechanism and a PLC program control system.
The chinlon monofilament satin coal washing filter cloth and the corresponding coal washing filter press provided by the utility model have the advantages of good trapping performance, excellent permeability, good regeneration performance, proper physical and chemical properties, strong mechanical properties and the like; the beneficial effects are that: 1. the filtration fabric organization structure is improved, so that the permeability, the air permeability and the filtration efficiency are optimized; 2. the mechanical property and the service life of the filter cloth yarn are optimized by optimizing the variety of the filter cloth yarn; the special requirements of continuous and high-efficiency production of modern large-scale coal washing plants on the core vulnerable elements of the filter press are met, and cost reduction and efficiency improvement are achieved.
Drawings
FIG. 1 is a pattern chart of the nylon monofilament satin coal washing filter cloth of the present invention.
FIG. 2 is the schematic view of the structure of the chinlon monofilament satin coal washing filter cloth grain of the utility model.
Reference numerals: 1-warp and 2-weft.
Detailed Description
The technical solution of the embodiment of the present invention will be described below with reference to the attached drawings of the embodiment of the present invention, which is a chinlon monofilament satin coal washing filter cloth and a corresponding coal washing filter press, and the described embodiment is only a preferred embodiment, not a complete embodiment of the present invention. Based on the embodiments of the present invention, all other embodiments without inventive idea made by the skilled in the art, such as single silk satin filter cloth with the same weaving mode and similar yarn variety, all belong to the protection scope of the present invention.
Example 1
A chinlon monofilament satin coal washing filter cloth (abbreviated as monofilament satin filter cloth) is formed by interweaving warp 1 and weft 2; the main points of the overall implementation scheme of the innovation are as follows: (1) improve the filter cloth organizational structure (weave mode): by adopting a satin weave structure with three upper parts and two lower parts, the permeability, the air permeability and the filtering efficiency of the filter are optimized on the premise of taking the trapping performance and the filtering effect into consideration; (2) optimizing the variety of filter cloth yarns: on the premise of considering both permeability and filtration efficiency, the warp density of the filter cloth is properly increased, weft yarns are thickened, and a nylon material with proper physical and chemical properties is selected, so that the mechanical properties and the service life of the filter cloth are optimized. Specific embodiments are described in detail below:
the warp 1 is 0.22mm chinlon monofilament, and the warp density is 600 pieces/10 cm; the monofilament filter cloth has good permeability, good reproducibility, excellent mechanical property and high strength; the warp density of the filter cloth is properly increased to improve the mechanical property and the service life of the filter cloth.
The weft 2 is 0.26mm of nylon monofilament, and the weft density is 168 pieces/10 cm; the monofilament filter cloth has good permeability, good reproducibility, excellent mechanical property and high strength; the weft yarns are properly thickened so as to improve the mechanical property and the service life of the filter cloth.
The nylon monofilament has good mechanical performance, optimal wear resistance, breaking strength of 4-5.3Cn/dtex, elongation of 18-45 percent, strong base and weak acid resistance and proper physical and chemical properties for coal washing filter cloth.
The organization structure of the filter cloth is as follows: adopts a satin weaving mode of three-over-two, namely a single-cycle arrangement mode of warps and wefts 1 and 2 is as follows: the warp 1 is positioned at the upper layer three picks of the weft 2, and the warp 1 is positioned at the lower layer two picks of the weft 2; it is characterized by that the interweaving points are notContinuous, some warp threads 1 float on the cloth surface, and the tightness deviation of the warp threads on the front side and the back side of the fabric is small; excellent permeability and air permeability of 1600-1800L/m2/S。
The weaving equipment used was: the Jingjin environmental protection stockcompany is the biggest filter cloth weaving business in the world at present, uses the heavy rapier weaving machine of denier P1, can change the variety fast, and superstrong beating-up force makes the fabric compactness height, stability height, and is easy and simple to handle, and production efficiency is high. The developed nylon monofilament satin coal washing filter cloth has smooth surface and good regeneration performance of easy cake removal after high-temperature shaping and pricking, and is suitable for solid-liquid separation of coal slime or sludge suspension (mixture of liquid and solid particles).
The chinlon monofilament satin coal washing filter cloth provided by the utility model has the advantages of good trapping performance, excellent permeability, good regeneration performance, proper physical and chemical properties, strong mechanical properties and the like; the technical problems of poor permeability, low filtering efficiency, poor mechanical property and short service life of the existing monofilament twill filter cloth are solved, the special requirements of continuous and efficient production of modern large-scale coal washing plants on vulnerable components of the core of the filter press are met, and cost reduction and efficiency improvement are realized.
Example 2
A coal washing filter press, which uses the polyamide single silk satin coal washing filter cloth (short for single silk satin filter cloth); the filter press is an automatic filter press which is integrated mechanically, electrically and hydraulically and intelligently controlled by a PLC (programmable logic controller); the device mainly comprises a double-beam frame, a hydraulic pressing mechanism, a high-efficiency filtering mechanism, monofilament satin filter cloth, an automatic plate pulling mechanism, an automatic cloth washing mechanism, a liquid receiving and plate turning mechanism, a PLC program control system and the like; is suitable for high-efficiency solid-liquid separation of coal slime or sludge suspension. The utility model discloses technical part common with prior art according to the current standard of china' van-type pressure filter and plate and frame pressure filter part 1: type and basic parameters section 2: technical Condition section 3: filter plate (JB/T4333-2013).
The high-efficiency filtering mechanism is a core part of a filter press and mainly comprises a head and tail anti-corrosion plate, a filter plate, a monofilament satin filter cloth, a cloth clamping distributor, a hole end sealing ring, a filter plate supporting handle and other parts. The monofilament satin filter cloth is a key element of a filter mechanism, is a high-efficiency filter medium and is a sealing element of a sealing surface of a frame of an adjacent filter plate. Assembling the filter cloth and related parts: the filter plate comprises a filter plate, a cloth clamping distributor, a filter plate handle, a pressing mechanism, a hole end sealing ring, a filter plate, a cloth clamping distributor, a filter plate handle and a high-efficiency filtering mechanism, wherein the hole end sealing ring is arranged in a sealing groove of each functional hole end of the filter plate, the filter cloth is hung on two sides of the filter plate and fixed, the cloth clamping distributor is arranged on a feed hole of the filter plate and used for clamping the filter cloth on the two sides of the filter plate and penetrates through filter chambers on the two sides of the filter plate, the filter plate handle is symmetrically arranged on the middle upper parts (arranged above the gravity center of the filter plate) on the two sides of the filter plate, a plurality of filter plates are arranged on a cross beam of the filter press, the filter plates are pressed through the pressing mechanism, and concave parts of adjacent filter plates clamping monofilament satin filter cloth form the high-efficiency filtering mechanism.
The low-pressure static filtering process of the coal washing filter press comprises the following steps: the material is pressurized by a feeding pump and is shunted to a filter chamber (between two pieces of filter cloth) through a feeding main channel to carry out low-pressure static filtration, the filter cloth intercepts particles in the material to form a filter cake in the filter chamber, filtrate passes through the filter cloth and flows out from a liquid outlet main channel of the filter chamber (between the filter plate and the filter cloth), and the filter plate is pulled open to realize gravity cake discharge. The single complete operation cycle working process of the filter press comprises the following steps: compacting a filter plate, feeding and filtering, turning a plate to receive liquid, washing and purifying, back blowing materials, blow-drying and purifying, pulling the plate and discharging cakes, and cleaning filter cloth; through a PLC control system, single operation cycle is automatically completed by one key; the intermittent reciprocating circulation work realizes the solid-liquid separation of the batch materials (coal slime).
The utility model discloses coal washing pressure filter, through experimental repeatedly, beneficial effect is: (1) by improving the tissue structure of the filter cloth, the permeability, the air permeability and the filtering efficiency are optimized, the filtering speed is high, and more filter cakes are fed; (2) the mechanical property and the service life of the filter cloth yarn are optimized by optimizing the variety of the filter cloth yarn; the special requirements of continuous and high-efficiency production of modern large-scale coal washing plants on the core vulnerable elements of the filter press are met, and cost reduction and efficiency improvement are achieved.
Claims (2)
1. A kind of chinlon monofilament satin coal washing filter cloth, including the warp, woof; the method is characterized in that: the warp threads are 0.22mm chinlon monofilaments, and the warp density is 600 threads/10 cm; the weft is 0.26mm of nylon monofilamentThe weft density is 168 pieces/10 cm; the organization structure of the filter cloth is as follows: adopting a satin weaving mode of three-over-two, namely a warp and weft single-cycle arrangement mode as follows: the warp is positioned on the upper layer three wefts of the weft, and the warp is positioned on the lower layer two wefts of the weft; the warp tightness deviation of the front and back sides of the filter cloth is small, the cloth surface is smooth, and the air permeability is 1600L/m2/S -1800L/m2/S。
2. A coal washing filter press comprises a double-beam frame, a hydraulic pressing mechanism, a high-efficiency filtering mechanism, an automatic plate pulling mechanism, an automatic cloth washing mechanism, a liquid receiving and plate turning mechanism and a PLC program control system; the method is characterized in that: comprises the chinlon monofilament satin coal washing filter cloth of claim 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120039017.3U CN214415821U (en) | 2021-01-08 | 2021-01-08 | Nylon monofilament satin-weave coal washing filter cloth and corresponding coal washing filter press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120039017.3U CN214415821U (en) | 2021-01-08 | 2021-01-08 | Nylon monofilament satin-weave coal washing filter cloth and corresponding coal washing filter press |
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| Publication Number | Publication Date |
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| CN214415821U true CN214415821U (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120039017.3U Active CN214415821U (en) | 2021-01-08 | 2021-01-08 | Nylon monofilament satin-weave coal washing filter cloth and corresponding coal washing filter press |
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| CN (1) | CN214415821U (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. |