CN217023959U - High-water-permeability/air-permeability anti-deviation conveying belt - Google Patents

Abstract

The utility model provides a high-water/gas-permeability anti-deviation conveyor belt which is not easy to deform, deviates, has low strength, short service life and poor water filtering performance, and aims to overcome the defects of easy deformation, high strength, high air permeability and good water permeability of the conveyor belt in the prior art, the conveyor belt comprises a base cloth layer and multidimensional space filtering layers positioned at two sides of the base cloth layer, the base cloth layer and the multidimensional space filtering layers at two sides are fixedly connected into a whole through needling, the base cloth layer comprises an upper layer and a lower layer, the upper layer base cloth is 3/1 herringbone twill weave, the lower layer base cloth is 2/2 herringbone twill weave, the yarn of the upper layer base cloth is thinner than that of the lower layer base cloth, the upper layer base cloth and the lower layer base cloth are fixedly connected through sewing threads or weft threads of one layer of base cloth around the other layer of base cloth, and the yarn of the base cloth is polypropylene fiber or polyester monofilament, the conveyor belt adopting the structure can improve the filtering precision and has stable tissue structure, the base cloth is particularly stable and not easy to deform.

Description

High-water-permeability/gas-permeability anti-deviation conveying belt

Technical Field

The utility model relates to a filter cloth capable of separating solid and liquid, in particular to a filter cloth for a conveyer belt for sludge dehydration treatment of a belt filter in industries such as steel making, coal dressing, environmental protection and the like.

Background

In the current sewage treatment industry, a conveyer belt for conveying sludge mainly plays a role in filtering water in slurry and conveying dried sludge to a specified place. The existing conveyer belt adopts a three-layer structure, the upper and lower layers are multidimensional space filtering layers, the middle layer is a gauze layer, the three layers are fixedly connected together by a needle punching method, the conveyer belt adopting the structure is characterized in that the multidimensional space filtering layers of the upper and lower layers are both made of short fibers, as the gauze is plain weave fabric woven by yarns formed by bonding short fibers, and the middle gauze layer used as a framework is also woven by the short fibers, therefore, the upper, middle and lower layers of the conveyer belt are all the short fiber layers, the short fibers easily block filtering gaps, the conveyer belt has poor drainability, low filtering speed and difficult cake unloading, moreover, the middle layer is a plain weave structure, as the plain weave has strong deformability, easy deformation and deviation, the conveyer belt usually has a width of more than three meters and a length of more than 60 meters, when the conveyer belt generates serious deformation after deviation, the conveyer belt can not normally work, furthermore, the conveying belt bears heavy weight in work due to heavy slurry transported, and the short fiber fabric is low in strength and short in service life, so that the conveying belt needs to be frequently replaced in use, the efficiency is low, and the labor capacity of workers is increased.

Disclosure of Invention

The utility model aims to provide a high-water/gas-permeability deviation-preventing conveying belt which is not easy to deform, has high strength and high air permeability and water permeability and has good performance, aiming at the defects of easy deformation, deviation, low strength, short service life and poor water drainability of the conveying belt in the prior art.

The utility model aims to be realized by the following technical scheme:

a high-water-permeability/air-permeability anti-deviation conveying belt comprises a base cloth layer and multi-dimensional space filtering layers positioned on two sides of the base cloth layer, wherein the base cloth layer and the multi-dimensional space filtering layers on the two sides are fixedly connected into a whole through needling, the base cloth layer comprises an upper layer and a lower layer, the upper layer of base cloth is 3/1 herringbone twill weave, the lower layer of base cloth is 2/2 herringbone twill weave, the yarns of the upper layer of base cloth are thinner than those of the lower layer of base cloth, the upper layer of base cloth and the lower layer of base cloth are fixedly connected by being wound around the wefts of the other layer of base cloth through sewing threads or warps of one layer of base cloth, and the yarns of the base cloth are polypropylene or polyester monofilaments;

the upper base cloth is symmetrically arranged in 3/1 herringbone twill weave;

the lower base cloth is symmetrically arranged in 2/2 herringbone twill weave;

the upper layer base cloth and the lower layer base cloth are opposite in tissue circulation;

the warp yarns are adopted to connect the upper-layer base cloth and the lower-layer base cloth, and in one weave cycle, the lower-layer warp yarns bypass the second weft yarns of the upper layer and the first weft yarns and the second weft yarns of the lower layer, then pass through the third weft yarns and the fourth weft yarns of the lower-layer fabric, and cycle in sequence;

singeing and calendaring the filter cloth for the conveyer belt to remove hairiness on the surface of the conveyer belt.

According to the conveyer belt with the structure, the base cloth layer adopts a double-layer structure, and the upper layer and the lower layer of the base cloth are both herringbone twill structures, so that the base cloth is not easy to deform, and the manufactured conveyer belt is not easy to deviate; because the upper layer and the lower layer of the base cloth are both monofilaments, the yarn hairiness is less and smooth, the upper layer is 3/1 herringbone twill, the lower layer is 2/2 herringbone twill, and the tissue structure is clear, so that the whole filter cloth has a smooth surface and is easy to unload cakes; the higher authority is twill tissue and silk than the lower floor is thin, therefore the hole is bigger than the lower floor, easily leak, lower floor's coarse aperture is little, can play the supporting role to the upper strata, because the hole is little than the upper strata, therefore, can improve filter fineness, the upper strata adopts the lower floor to adopt 3/1 herringbone twill, the lower floor adopts 2/2 herringbone twill, the line that makes upper and lower floor staggers, the hole is not relative, therefore, can improve filter fineness, 2/2 herringbone twill tissue makes the lower floor's texture clear, the organizational structure is stable, make base cloth stable very much, non-deformable.

Drawings

FIG. 1 is a schematic diagram of an upper level tissue circulation architecture according to an embodiment of the present invention;

FIG. 2 is a schematic view of the lower layer of a tissue cycle according to an embodiment of the present invention; (ii) a

FIG. 3 is a view showing a base fabric of the present invention in a warp-wise section;

fig. 4 is a schematic view of an embodiment of the conveyor belt structure of the present invention.

Description of the reference numerals

1-upper layer weft yarns; 2-upper layer warp yarns; 3-lower layer weft yarns; 4-lower layer warp yarns; 5-an upper multi-dimensional spatial filter layer; 6-lower multi-dimensional spatial filter layer; 7-base cloth layer.

Detailed Description

As shown in fig. 1-3, a high water/air permeability anti-deviation conveyor belt comprises a base fabric layer 7 as a middle layer and multidimensional space filter layers positioned at two sides of the middle layer, wherein both the upper multidimensional space filter layer 5 and the lower multidimensional space filter layer 6 are net layers formed by carding polypropylene short fibers, the net layers are fixedly connected with the middle base fabric layer 7 through needling, the base fabric layer is a monofilament double-layer fabric woven by polypropylene or polyester monofilaments with different thicknesses through weaving, the upper base fabric is 3/1 herringbone twill, and the monofilament thinner than the lower base fabric is used; the lower base cloth is 2/2 herringbone twill weave and is made of monofilaments thicker than the upper base cloth. The upper and lower base cloths are connected together by sewing threads or connected together by warps. According to the conveyer belt adopting the structure, the upper layer and the lower layer of the base cloth are all herringbone twill structures, so that the base cloth is not easy to deform, and the manufactured conveyer belt is not easy to deviate; because the upper layer and the lower layer of the base cloth are both monofilaments, the yarn hairiness is less and smooth, the upper layer is 3/1 herringbone twill, the lower layer is 2/2 herringbone twill, and the tissue structure is clear, so that the whole filter cloth has a smooth surface and is easy to unload cakes; the higher authority is twill weave and silk than the lower floor is thin, therefore the hole is bigger than the lower floor, easily leak, lower floor's coarse aperture is little, can play the supporting role to the upper strata, because the hole is little than the upper strata, therefore, can improve filter fineness, the upper strata adopts the lower floor to adopt 3/1 herringbone twill, the lower floor adopts 2/2 herringbone twill, the line that makes upper and lower floor's base cloth staggers, the hole is not relative, therefore, can improve filter fineness, 2/2 herringbone twill weave makes the texture of lower floor clear, the organizational structure is stable, make base cloth stable in particular, non-deformable.

Preferably, as shown in FIG. 3, the upper and lower layers of the base fabric are secured together by the lower warp yarns 2 which are bound around the upper weft yarns 1. In a weave circulation, the lower layer warp yarns 4 pass through the third weft yarns and the fourth weft yarns of the lower layer fabric after bypassing the upper layer second weft yarns 3 and the lower layer first weft yarns and the lower layer second weft yarns, and circulate in sequence.

More preferably, the filter cloth for the conveyer belt is singed and calendered and then is subjected to heat setting treatment, the surface of the base filter cloth is smoother after singeing and calendering, the fabric size of the fabric subjected to heat setting treatment is more stable and is not easy to shrink and deform, and the conveyer belt with a tighter and smoother upper layer structure, clear lower layer texture and stronger water permeability and air permeability is obtained.

Preferably, the upper layer of the base cloth is of a symmetrical structure of the herringbone patterns, so that the base cloth is not easy to deform and deviate in the using process, and the service life is prolonged. The symmetrical structure is preferably two-cycle-one-symmetry or one-cycle-one-symmetry, so that the base fabric is less likely to be deformed. The selected polypropylene fiber and the polyester fiber can be used for a long time in an acid-base environment and have long service life.

Claims (6)

1. The utility model provides a high water permeability/gas prevent off tracking conveyer belt, includes base cloth layer and the multidimensional space filter layer that is located the base cloth layer both sides, and the base cloth layer is integrative through acupuncture fixed connection with the multidimensional space filter layer of both sides, its characterized in that, the base cloth layer includes upper and lower two-layer, and upper base cloth is 3/1 herringbone twill weave, and lower floor's base cloth is 2/2 herringbone twill weave, and upper base cloth yarn is thinner than lower floor's base cloth yarn, and upper base cloth and lower floor's base cloth wind the woof fixed connection of another layer of base cloth through the warp of suture or one layer of base cloth, the yarn of base cloth is polypropylene fibre or polyester fibre monofilament.

2. The high water/air permeability deviation-preventing conveying belt as claimed in claim 1, wherein the upper base cloth is symmetrically arranged in 3/1 herringbone twill weave.

3. The high water/air permeability/deflection-preventing conveying belt as claimed in claim 1, wherein the lower base fabric is symmetrically arranged in 2/2 herringbone twill weave.

4. The high water/air permeability/deflection-preventing conveying belt according to claim 1, wherein the upper base fabric and the lower base fabric have opposite structures.

5. The high water/air permeability/air deflection-preventing conveying belt according to claim 1, wherein warp yarns are adopted to connect the upper base fabric and the lower base fabric, and in a weave cycle, the lower warp yarns bypass the second weft yarns of the upper layer and the first weft yarns and the second weft yarns of the lower layer and then pass through the third weft yarns and the fourth weft yarns of the lower layer fabric, and the weave cycle is repeated in sequence.

6. The high water/air permeability/air deflection-preventing conveying belt as claimed in claim 1, wherein the filter cloth for the conveying belt is subjected to singeing and calendering treatment to remove hairiness on the surface of the conveying belt.

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