CN214914167U

CN214914167U - Gradient filtering cloth of polypropylene multifilament

Info

Publication number: CN214914167U
Application number: CN202121442073.8U
Authority: CN
Inventors: 庞庆源
Original assignee: Zhejiang Weiruifu Industrial Cloth Co ltd
Current assignee: Zhejiang Weiruifu Industrial Cloth Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-11-30
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a polypropylene multifilament gradient filter cloth, which comprises a first filter cloth layer, wherein a second filter cloth layer is arranged at the bottom of the first filter cloth layer, warp yarns and weft yarns are arranged on the first filter cloth layer and the second filter cloth layer, polypropylene multifilaments are arranged in the warp yarns and the weft yarns, an oil layer is arranged on the outer wall of the polypropylene multifilaments, and a wear-resistant layer is arranged on the outer wall of the oil layer; this polypropylene fibre multifilament gradient filter cloth is through setting up the polypropylene fibre multifilament, because the polypropylene fibre multifilament is 1000D's polypropylene fibre long fiber multifilament, make the filter cloth not only intensity high but also filter effect good, rethread first filter cloth layer adopts the twill to weave with the second filter cloth layer, two-layer twill is woven in turn and is formed the filtration gradient, improve the sediment performance of unloading of filter cloth, accelerate filter speed, waterproof nature through setting up the oily sliding layer and utilizing modified asphalt material, prevent that the polypropylene fibre multifilament from being soaked the fluff in long-term filter process, utilize the smooth wear-resisting characteristic of modified polyurethane material through the wearing layer, prevent that the polypropylene fibre multifilament from being worn and torn the fluff, can reach the effect that prevents the filter cloth fluff.

Description

Gradient filtering cloth of polypropylene multifilament

Technical Field

The utility model relates to a filter cloth technical field specifically is polypropylene fibre multifilament gradient filter cloth.

Background

Filter cloths are the most widely used filter media in industry. The filter cloth is divided into a textile filter cloth and a non-textile filter cloth. Woven filter cloths are typically woven from three yarns of different types, monofilament, multifilament and staple. The monofilament is generally a single filament drawn from synthetic fiber, and the filter cloth composed of the monofilament has the advantages of smooth surface, small specific resistance, easy cleaning, residue performance and the like, but the separation effect is not ideal when filtering suspension with higher precision. The multifilament is formed by twisting more than two strands of raw filaments, and the filter cloth consisting of the multifilament has good tensile strength, better interception performance on particles than that of monofilaments and slightly poorer residue unloading performance. The short fiber is twisted by natural cotton wool fiber or synthetic short fiber, and has good particle interception performance and good sealing performance due to the wool-like fiber, but has the defects that the pores are easy to be blocked by particles, and the cleaning and residue removal performance is poor. At present, most of filter cloth used on a filter for filtering mineral powder in metallurgy, coal, mine and the like is 108C polypropylene multifilament filter cloth, the used structure is a heavy flat structure, and pores among fabric interweaving are large. This type of filter cloth, although having good tensile strength, does not allow effective filtration, has poor slag discharge performance and low water yield, resulting in a severe drop in filtration yield.

The prior art has the following defects or problems:

1. the prior art has the problems that although the polypropylene filter cloth has good tensile strength, the polypropylene filter cloth can not carry out effective filtration and has poor slag discharging performance;

2. the prior art has the problem that polypropylene filter cloth is easy to fluff when being separated from a filter cake.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a polypropylene multifilament gradient filter cloth to the weak point of prior art to the problem of proposing among the solution background art.

In order to achieve the above object, the utility model provides a following technical scheme: the polypropylene multifilament gradient filter cloth comprises a first filter cloth layer, a second filter cloth layer is arranged at the bottom of the first filter cloth layer, warp yarns and weft yarns are arranged on the first filter cloth layer and the second filter cloth layer, polypropylene multifilaments are arranged in the warp yarns and the weft yarns, an oil-lubricating layer is arranged on the outer wall of the polypropylene multifilaments, and a wear-resistant layer is arranged on the outer wall of the oil-lubricating layer.

As a preferred technical solution of the present invention, the polypropylene multifilament is a polypropylene filament multifilament.

As the preferred technical scheme of the utility model, the warp is 1000D polypropylene fibre multifilament, the woof is 1000D polypropylene fibre multifilament.

As the preferred technical proposal of the utility model, the warp and weft thread density is 90/26 pieces/inch.

As an optimal technical scheme of the utility model, first filter cloth layer and second filter cloth layer fixed connection, first filter cloth layer adopts the twill mode of weaving with the second filter cloth layer.

As the preferred technical scheme of the utility model, polypropylene multifilament and oil slick layer fixed connection, the oil slick layer is made for the modified asphalt material.

As the preferred technical scheme of the utility model, wearing layer and oily sliding layer fixed connection, the wearing layer is made for the modified polyurethane material.

Compared with the prior art, the utility model provides a polypropylene multifilament gradient filter cloth possesses following beneficial effect:

1. according to the polypropylene multifilament gradient filter cloth, the polypropylene multifilaments are arranged to filter fine powder, so that the fine powder in a material with certain viscosity is effectively filtered, the polypropylene multifilaments are 1000D polypropylene filament multifilaments, so that the filter cloth is high in strength and good in filtering effect, the filtering effect of the filter cloth on the fine powder is further improved through the warp and weft density of 90/26 warps and wefts, the first filter cloth layer and the second filter cloth layer are woven by twill, and two layers of twill are alternately woven to form a filtering gradient, so that the effects of improving the slag discharging performance of the filter cloth and accelerating the filtering speed of the filter cloth can be achieved;

2. this polypropylene fibre multifilament gradient filter cloth through setting up oily sliding layer parcel polypropylene fibre multifilament, utilizes the waterproof nature of modified asphalt material, prevents that the polypropylene fibre multifilament from being soaked the fluff in long-term filtration process, utilizes the smooth wear-resisting characteristic of modified polyurethane material through the wearing layer, and the polypropylene fibre multifilament is worn and torn the fluff when preventing filter cloth and filter cake separation, can reach the effect that prevents the filter cloth fluff.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the yarn weave structure of the present invention;

FIG. 3 is a schematic view of the yarn structure of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the yarn of the present invention.

In the figure: 1. a first filter cloth layer; 2. a second filter cloth layer; 3. warp yarns; 4. a weft yarn; 5. a polypropylene multifilament yarn; 6. a lubricious layer; 7. and a wear-resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in this embodiment: polypropylene multifilament gradient filter cloth, including first filter cloth layer 1, first filter cloth layer 1 bottom is provided with second filter cloth layer 2, is provided with warp 3 and woof 4 on first filter cloth layer 1 and the second filter cloth layer 2, is provided with polypropylene multifilament 5 in warp 3 and the

woof

4, and 5 outer walls of polypropylene multifilament are provided with oily sliding

layer

6, and 6 outer walls of oily sliding layer are provided with wearing layer 7.

In the embodiment, the polypropylene multifilament 5 is polypropylene filament multifilament, so that the strength of the filter cloth is enhanced; the warp 3 is 1000D polypropylene filament multifilament, and the weft 4 is 1000D polypropylene filament multifilament, so that the filtering effect of the filter cloth on the fine powder is primarily improved; the warp and weft density of the warp yarns 3 and the weft yarns 4 is 90/26 yarns/inch, so that the filtering effect of the filter cloth on the fine powder is further improved; the first filter cloth layer 1 is fixedly connected with the second filter cloth layer 2, the first filter cloth layer 1 and the second filter cloth layer 2 are woven in a twill weaving mode, and double-layer twill filter cloth improves the friction resistance of the filter cloth, improves the filtering speed of the filter cloth and prolongs the service life of the filter cloth; the polypropylene multifilament 5 is fixedly connected with the oil sliding layer 6, and the oil sliding layer 6 is made of modified asphalt materials to prevent the filter cloth from being soaked and fluffed; the wear-resistant layer 7 is fixedly connected with the oil sliding layer 6, and the wear-resistant layer 7 is made of a modified polyurethane material, so that the filter cloth is prevented from being worn and fluffed.

The utility model discloses a theory of operation and use flow: in the work, the polypropylene multifilament 5 is used for filtering micro-fine powder, the micro-fine powder in a material with certain viscosity is effectively filtered, the polypropylene multifilament 5 is 1000D polypropylene filament multifilament, so that the filter cloth is high in strength and good in filtering effect, the filtering effect of the filter cloth on the micro-fine powder is further improved through the higher warp and weft density of the warp yarns 3 and the weft yarns 4, the first filter cloth layer 1 and the second filter cloth layer 2 are woven by twill, two layers of twill are alternately woven to form a filtering gradient, the slag discharging performance of the filter cloth is improved, the filtering speed of the filter cloth is accelerated, the oil sliding layer 6 wraps the polypropylene multifilament 5, the waterproofness of the modified asphalt material is utilized, the polypropylene multifilament 5 is prevented from being soaked and fluffed in the long-term filtering process, the wear-resistant layer 7 is utilized to utilize the smooth wear-resistant characteristic of the modified polyurethane material, and the polypropylene multifilament 5 is prevented from being fluffed when the filter cloth is separated from a filter cake, the service life of the filter cloth is prolonged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The polypropylene multifilament gradient filter cloth is characterized in that: including first filter cloth layer (1), first filter cloth layer (1) bottom is provided with second filter cloth layer (2), be provided with warp (3) and woof (4) on first filter cloth layer (1) and second filter cloth layer (2), be provided with polypropylene fibre multifilament (5) in warp (3) and woof (4), polypropylene fibre multifilament (5) outer wall is provided with oily sliding layer (6), oily sliding layer (6) outer wall is provided with wearing layer (7).

2. The polypropylene multifilament gradient filter cloth of claim 1, wherein: the polypropylene multifilament (5) is polypropylene filament multifilament.

3. The polypropylene multifilament gradient filter cloth of claim 1, wherein: the warp yarns (3) are 1000D polypropylene filament multifilament yarns, and the weft yarns (4) are 1000D polypropylene filament multifilament yarns.

4. The polypropylene multifilament gradient filter cloth of claim 1, wherein: the warp and weft density of the warp yarns (3) and the weft yarns (4) is 90/26 yarns/inch.

5. The polypropylene multifilament gradient filter cloth of claim 1, wherein: first filter cloth layer (1) and second filter cloth layer (2) fixed connection, first filter cloth layer (1) and second filter cloth layer (2) adopt twill weave mode.

6. The polypropylene multifilament gradient filter cloth of claim 1, wherein: the polypropylene multifilament (5) is fixedly connected with the oil sliding layer (6), and the oil sliding layer (6) is made of modified asphalt materials.

7. The polypropylene multifilament gradient filter cloth of claim 1, wherein: the wear-resistant layer (7) is fixedly connected with the oil sliding layer (6), and the wear-resistant layer (7) is made of a modified polyurethane material.