CN212731376U - Multifilament warp monofilament weft twill filter cloth and corresponding hydrometallurgy filter press - Google Patents
Multifilament warp monofilament weft twill filter cloth and corresponding hydrometallurgy filter press Download PDFInfo
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- CN212731376U CN212731376U CN202021321697.XU CN202021321697U CN212731376U CN 212731376 U CN212731376 U CN 212731376U CN 202021321697 U CN202021321697 U CN 202021321697U CN 212731376 U CN212731376 U CN 212731376U
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Abstract
The utility model discloses a multifilament warp monofilament weft twill filter cloth and a corresponding hydrometallurgy filter press; this filter cloth includes multifilament warp and monofilament weft, and the main points of innovation scheme are: multifilament warp yarn, which is 1000D (110T/S), polypropylene long fiber multifilament with the density of 360 yarns/10 cm; the monofilament weft is 0.5mm and is a polypropylene fine monofilament with the density of 90 threads/10 cm; the weaving pattern is 3/1+1/3, namely the one circulation arrangement of the warp and weft is as follows: one weaving opening is led in two weft yarns for variable interweaving, the warp yarns are positioned at the upper layer three wefts of the weft yarns, the warp yarns are positioned at the lower layer one weft of the weft yarns, and two adjacent weft yarns areThe warp threads are respectively positive and negative weave inner yarns; the air permeability is 65-80L/m2and/S. The filter cloth has the advantages of high strength, durability, good permeability, high filtering speed and the like; solves the technical problems of low strength, easy damage, poor permeability, slow filtration speed and the like of the traditional filter cloth, and has remarkable effect.
Description
Technical Field
The utility model belongs to the technical field of hydrometallurgy pressure filter (patent classification number B01D 25/12), a compound single double filament (multifilament warp monofilament weft) twill filter cloth is related to.
Background
The filter press is a pressurized filtering device with multiple filtering chambers operated intermittently; a hydrometallurgy filter press is a filter press using filter cloth suitable for hydrometallurgy, mainly comprises a frame, a pressing mechanism, a hydrometallurgy filtering mechanism (including the filter cloth), a plate pulling mechanism, a cloth washing mechanism, a hydraulic driving mechanism, a PLC program control system and the like, and is suitable for solid-liquid separation of a leaching solution of zinc, aluminum, copper, gold, uranium, hafnium, zirconium and other ores and a residue mixture.
An industrial filter cloth, which is a core element of a filter press and is woven by warps (lines parallel to a cloth edge) and wefts (lines perpendicular to the cloth edge); the knitting method (weave structure) includes: 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 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 prior single-double-filament (single-filament warp and multifilament weft) filter cloth has the following defects: 1. the combination of yarn varieties and materials is not good, the mechanical property of the filter cloth is poor, the filter cloth is easy to break, the service life of the filter cloth is easily influenced, and the continuous production efficiency is influenced; 2. the filter cloth has poor rigidity and is too soft (not stiff), and the filter cloth is easily squeezed into gaps of filtering mesh points of the filter plate by materials to block a liquid outlet converging network, so that the production capacity is influenced; 3. the tissue structure of the existing filter cloth has poor permeability, low air permeability and slower filtering speed, thus influencing the large-scale production efficiency; the existing filter cloth has poor adaptability to large-scale hydrometallurgy and cannot meet the requirement of modern large-scale high-efficiency hydrometallurgy solid-liquid separation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect of current compound double filament filter cloth, solving corresponding filter cloth intensity low easy damage, the rigidity is poor too soft, the permeability is poor technical problem such as the filtration rate is slow, through the pilot test that relapses, provides a multifilament warp monofilament weft twill filter cloth and corresponding hydrometallurgy pressure filter.
The utility model provides an innovation technical scheme that prior art problem adopted is: a multifilament warp monofilament weft twill filter cloth (hereinafter referred to as a compound single-double-silk filter cloth) is formed by weaving warp and weft; the main points of the overall technical scheme are as follows: compared with the prior art, the innovative overall structure has the prominent substantive characteristics that: the existing single-double-filament warp and weft is innovated into the single-double-filament warp and weft so as to improve the rigidity of the filter cloth and have the advantages of single-filament or multifilament filter cloth on the premise of high multifilament interception rate; the existing twill weaving mode is improved into 3/1+1/3 twill weaving mode, the porosity is high, the permeability of the filter cloth is improved, and the air permeability is (65-80) L/m2The air permeability is better than that of plain filter cloth between/S; the preferable yarn varieties are as follows: the long fiber multifilament has high trapping performance, good mechanical performance, good monofilament permeability, good reproducibility and high strength, so that the permeability, the strength and the like of the filter cloth are improved; the polypropylene fiber material has good permeability and regeneration performance, good physical and chemical properties, wear resistance and corrosion resistance; therefore, the technical problems that the existing single-double-wire filter cloth is low in strength, easy to damage, poor in rigidity, too soft, poor in permeability, low in filtering speed and the like are solved.
The specific design scheme of the double-single double-wire filter cloth is as follows: the multifilament warp and monofilament weft are changed and interwoven to form twill filter cloth; the multifilament warp is 1000D (110T/S), and the density is 360 pieces/10 cm polypropylene filament multifilament; the monofilament weft is a polypropylene fine monofilament with the thickness of 0.5mm and the density of 90 threads/10 cm; the twill weaving mode is 3/1+1/3 weaving mode, namely a circulating arrangement mode of warps and wefts is as follows: two weft yarns are introduced into a weaving opening to be interwoven in a changing way, the warp yarns are positioned on the upper layer three wefts of the weft yarns, the warp yarns are positioned on the lower layer one weft of the weft yarns, two adjacent warp yarns are respectively positive and negative weave inner yarns, and the cloth surface is provided with oblique grains. The double-single-double-wire filter cloth has the advantages of high strength, durability, good rigidity, no blockage of a liquid outlet network, good permeability, high filtering speed, good trapping property, high interception precision and the like; the comprehensive performance of the filter cloth meets the requirements of modern large-scale high-efficiency hydrometallurgy solid-liquid separation.
The utility model also provides a wet-process metallurgy filter press which uses the multifilament warp monofilament weft twill filter cloth of the utility model; the filter press mainly comprises a frame, a pressing mechanism, a hydrometallurgy filtering mechanism (including filter cloth), a pulling plate 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 and are pressed tightly by a pressing mechanism, and the concave parts of the adjacent filter plates which clamp the single and double filter cloth form a hydrometallurgy filter mechanism.
The utility model provides a multifilament warp monofilament weft twill filter cloth and corresponding hydrometallurgy pressure filter, the remarkable progress is that, compound single double silk twill filter cloth has intensity height durable, the rigidity is good not stifled goes out the liquid network, the permeability is good the filter speed is fast, the entrapment is good interception precision high grade advantage; the filter cloth has the beneficial effects that the filtering speed and the service life of the twill filter cloth are improved, the phenomenon that the filter cloth is easily squeezed into gaps of filtering mesh points to block a liquid outlet network due to too soft material is eliminated, the comprehensive performance of the filter cloth meets the requirement of modern large-scale high-efficiency wet-process metallurgy solid-liquid separation, the production efficiency and the filtering effect are improved, and the cost is reduced and the efficiency is increased.
Drawings
FIG. 1 is a pattern image of the multifilament warp monofilament weft twill filter cloth of the present invention.
Fig. 2 is the utility model discloses multifilament warp monofilament weft twill filter cloth line structure schematic diagram.
Reference numerals: 1- -the weft, 2- -the warp, 11- -the warp on top, 12- -the warp on the bottom.
Detailed Description
The technical solution of the embodiments of the present invention will be described below with reference to the drawings of the embodiments of the multifilament warp monofilament weft twill filter cloth and the corresponding hydrometallurgical filter press of the present invention, and the described embodiments are only preferred embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments without inventive idea made by the skilled in the art, such as the filter cloth with the same weaving mode and different materials, all belong to the protection scope of the present invention.
Example 1
A multifilament warp monofilament weft twill filter cloth is woven by warps 2 and wefts 1; the main points of the overall implementation scheme of the innovation are as follows: the existing single-double-filament warp and weft is innovated into the single-double-filament warp and weft so as to improve the rigidity of the filter cloth and have the advantages of single-filament or multifilament filter cloth on the premise of high multifilament interception rate; the existing twill weaving mode is improved to 3/1+1/3 twill weaving mode, the porosity is high, the permeability of the filter cloth is improved, and the air permeability is better than that of plain filter cloth; the preferable yarn varieties are as follows: the long fiber multifilament has high trapping performance, good mechanical performance and good monofilament permeability (air permeability of 65-80L/m)2S), good reproducibility and high strength, so as to improve the permeability, strength and the like of the filter cloth; the polypropylene fiber material has good permeability and regeneration performance, good physical and chemical properties, wear resistance and corrosion resistance. Specific embodiments are described in detail below:
the multifilament warp 2 is 1000D (110T/S), polypropylene filament multifilament with the density of 360 threads/10 cm; good trapping performance, high interception precision, good mechanical performance, durability and higher breaking strength than short fibers, and improves the radial rigidity to ensure that the filter cloth does not block a liquid outlet network.
The monofilament weft 1 is a polypropylene fine monofilament with the thickness of 0.5mm and the density of 90 threads/10 centimeters; good monofilament permeability and air permeability of (65-80) L/m2Has good regeneration property and high strength between/S, so as to improve the permeability, the strength and the like of the filter cloth.
The polypropylene fiber material is polypropylene multifilament and monofilament, has good permeation and regeneration performance, good physical and chemical properties, wear resistance, corrosion resistance, no polar gene, no water absorption, oxidation resistance and mildew resistance.
The twill weaving mode is 3/1+1/3 weaving mode, namely a circulating arrangement mode of warp 2 and weft 1 is as follows: two weft yarns 1 are introduced into a weaving opening to be interwoven in a changing way, warps 2 are positioned on the upper three wefts (warps are on the upper surface 11) of the wefts 1, the warps 2 are positioned on the lower one weft (warps are on the lower surface 12) of the wefts 1, two adjacent warps 2 are respectively yarns in positive and negative textures, the yarns are sequentially arranged and woven, and the cloth surface is provided with oblique grains; the porosity is larger to improve the permeability of the filter cloth, and the air permeability is better than that of plain filter cloth.
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 double single and double wire filter cloth is shaped at high temperature and polished to have smooth surface, light weight and air permeability, and the air permeability is 65-80L/m2between/S, the largest industrial filter cloth manufacturer worldwide names this new product filter cloth as a JJ3811 hydrometallurgical filter cloth.
The multifilament warp monofilament weft twill filter cloth provided by the utility model has the advantages of high strength, durability, good rigidity, no blockage of a liquid outlet network, good permeability, fast filtration speed, good trapping, high interception precision and the like through repeated tests; the technical problems that the existing single-double-wire filter cloth is low in strength, easy to damage, poor in rigidity, too soft in blocking a liquid network, poor in permeability, slow in filtering speed and the like are solved, and a remarkable technical effect is achieved.
Example 2
A wet-process metallurgy filter press, which uses the multifilament warp monofilament weft twill 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 frame, a pressing mechanism, a hydrometallurgy filtering mechanism (comprising filter cloth), a pulling plate mechanism, a cloth washing mechanism, a hydraulic driving mechanism, a PLC program control system and the like; is suitable for solid-liquid separation of modern large-scale high-efficiency wet metallurgy. 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).
A hydrometallurgy filtering mechanism is a core component of a filter press and mainly comprises a head and tail anti-corrosion plate, a filter plate, a composite single-double-thread twill filter cloth, a cloth clamping distributor, a hole end sealing ring, a filter plate supporting handle and other parts. The filter cloth is a key element of a hydrometallurgy filter mechanism, and is a filter medium and 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 plurality of filter plates, a pressing mechanism, a filter plate, a plurality of double-thread filter cloth clamping device, a filter plate handle, a filter press cross beam, a filter press cross beam, a plurality of filter plates and a filter press, wherein hole end sealing rings are arranged in sealing grooves of functional hole ends of the filter plates, 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.
The low-pressure static filtering process of the hydrometallurgy 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 batch materials (the mixture of the ore leaching solution and the residue).
The utility model has the advantages of high strength of the filter cloth, durability, good permeability, fast filtering speed, smooth liquid discharge of the confluence network, good trapping, high interception precision and the like through repeated experiments; the filter cloth has the beneficial effects that the filtering speed and the service life of the twill filter cloth are improved, the phenomenon that the filter cloth is easily squeezed into gaps of filtering mesh points to block a liquid outlet network due to too soft material is eliminated, the comprehensive performance of the filter cloth meets the requirement of modern large-scale high-efficiency wet-process metallurgy solid-liquid separation, the production efficiency and the filtering effect are improved, and the cost is reduced and the efficiency is increased.
Claims (2)
1. A multifilament warp monofilament weft twill filter cloth comprises warp and weft; the method is characterized in that: the warp is 1000D (110T/S) polypropylene long fiber multifilament with the density of 360 threads/10 cm; the weft is 0.5mm and is a polypropylene fine monofilament with the density of 90 threads/10 cm; the weaving mode of the twill filter cloth is 3/1+1/3 weave structure, namely, a circulating arrangement mode of warps and wefts is as follows: two weft yarns are introduced into a weaving opening to be changed and interwoven, the warp yarns are positioned on the upper layer of the weft yarns and the third weft yarns, the warp yarns are positioned on the lower layer of the weft yarns, two adjacent warp yarns are respectively the front and back weave inner yarns, and the cloth surface is provided with oblique grains; air permeability of 65L/m2/S -80 L/m2and/S.
2. A hydrometallurgy filter press comprises a frame, a pressing mechanism, a hydrometallurgy filtering mechanism, a plate pulling mechanism, a cloth washing mechanism, a hydraulic driving mechanism and a PLC program control system, wherein the hydrometallurgy filtering mechanism comprises a filter plate and filter cloth; characterized in that it comprises the multifilament warp monofilament weft twill filter cloth of claim 1; the filter plates are arranged on a cross beam of the filter press and are pressed tightly by a pressing mechanism, and the concave parts of the adjacent filter plates which clamp the single-double-thread twill filter cloth form a hydrometallurgy filter mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021321697.XU CN212731376U (en) | 2020-07-08 | 2020-07-08 | Multifilament warp monofilament weft twill filter cloth and corresponding hydrometallurgy filter press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021321697.XU CN212731376U (en) | 2020-07-08 | 2020-07-08 | Multifilament warp monofilament weft twill filter cloth and corresponding hydrometallurgy filter press |
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| CN212731376U true CN212731376U (en) | 2021-03-19 |
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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. |