CN211358000U

CN211358000U - High-precision composite filter cloth

Info

Publication number: CN211358000U
Application number: CN201921631551.2U
Authority: CN
Inventors: 张明光; 韩贤国; 赵业平; 邵英海; 董炯
Original assignee: Eastern Liaoning University
Current assignee: Eastern Liaoning University
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-08-28
Anticipated expiration: 2029-09-28

Abstract

A high-precision composite filter cloth comprises three cloth layers of filter paper 1, non-woven fabric 2 and woven fabric 3, wherein the three layers of the filter paper 1, the non-woven fabric 2 and the woven fabric 3 are bonded with each other in a combination form of equally spaced and uniform point-shaped bonding points 3, strip-shaped bonding strips 4, the point-shaped bonding points 3 and the strip-shaped bonding strips 4; the filter cloth has the characteristic of graded filtration, most of impurities with large volume can be filtered by the woven filter cloth, the impurities penetrating through the woven filter cloth can be partially intercepted by the non-woven fabric, and the remaining extremely small impurities are further intercepted by the filter paper, so that the filter precision and the clarity are improved, the service life of the filter cloth is prolonged, and the characteristics of higher dust removal and filtration requirements can be met.

Description

High-precision composite filter cloth

Technical Field

The patent of the utility model relates to a filter cloth technical field, concretely relates to liquid-solid separation filtration equipment's such as box pressure filter, rotary drum vacuum filter high accuracy composite filter cloth.

Background

At present, the requirements of liquid-solid separation filtering equipment on the performance and quality of filter cloth are continuously improved, and most of the commonly used filter cloth is the filter cloth of single woven fabric, knitted fabric, non-woven fabric, filter paper, woven fabric and non-woven fabric; the woven filter cloth has high strength, good filter cake releasing performance, high reuse rate or high regeneration performance after cleaning; the filter paper has high filtering precision, accurate gap size, low strength and can not be reused; the filtering performance of the non-woven fabric is between that of the woven filter cloth and that of the filter paper, and the non-woven fabric has certain dust holding capacity and can be blocked after long-term use; the dust shaking falling and dust filtering effect of the woven and non-woven composite filter cloth are good, the service life is long, and the filtering precision and the filtering effect need to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a purpose is to the above-mentioned problem that exists of current filter cloth technique, provides a high accuracy composite filter cloth, realizes through following technical scheme: the utility model provides a high accuracy composite filter cloth which characterized in that: the cloth comprises three cloth layers of filter paper 1, non-woven fabric 2 and woven fabric 3; the filter paper 1 is made of fibers and has a gap with a certain specification and size; the nonwoven fabric 2 is a fiber web made of thermoplastic fibers; the woven fabric 3 is a latticed plain woven fabric, and the plain woven fabric is woven by a plurality of warps and wefts, wherein the warps and the wefts are mutually vertical; the three layers of the filter paper 1, the non-woven fabric 2 and the woven fabric 3 are mutually bonded in the form of equidistant and uniform point-shaped gluing points 4, strip-shaped gluing 5 or the combination of the point-shaped gluing points 4 and the strip-shaped gluing 5, and the distance between the point-shaped gluing points 4 or the strip-shaped gluing 5 is as follows: l is the length of the space and takes the values of 20, 25, 30, 35, 40, 45, 50, 60, 70 and 80mm, W is the width of the space and takes the values of 20, 25, 30, 35, 40, 45, 50, 60, 70 and 80mm, wherein L and W can be combined by taking any one value respectively.

The utility model has the advantages that: a high-precision composite filter cloth comprises three cloth layers of filter paper 1, non-woven fabric 2 and woven fabric 3, wherein the three layers of the filter paper 1, the non-woven fabric 2 and the woven fabric 3 are bonded with each other in a combination form of equally-spaced and uniform point-shaped gluing points 4, strip-shaped gluing 5, and the point-shaped gluing points 4 and the strip-shaped gluing 5; the filter cloth has the characteristic of graded filtration, most of impurities with large volume can be filtered by the woven cloth 3, the impurities penetrating through the woven cloth 3 can be partially intercepted by the non-woven cloth 2, and the remaining extremely small impurities are further intercepted by the filter paper 1, so that the filter precision and the clarity are improved, the service life of the filter cloth is prolonged, and the characteristics of higher dust removal and filtration requirements can be met.

Drawings

Fig. 1 is a cross-sectional view of a high-precision composite filter cloth according to the present invention;

fig. 2 is a top view of fig. 1.

In the figure, 1, filter paper; 2. non-woven fabrics; 3. weaving by a machine; 4. point-like gluing points; 5. and (6) gluing the strips.

Detailed Description

A high-precision composite filter cloth is shown in figures 1 and 2 and comprises three cloth layers of filter paper 1, non-woven fabric 2 and woven fabric 3; the filter paper 1 is made of fibers and has a gap with a certain specification and size; the nonwoven fabric 2 is a fiber web made of thermoplastic fibers; the woven fabric 3 is a latticed plain woven fabric, and the plain woven fabric is woven by a plurality of warps and wefts, wherein the warps and the wefts are mutually vertical; the three layers of the filter paper 1, the non-woven fabric 2 and the woven fabric 3 are mutually bonded in the form of equidistant and uniform point-shaped gluing points 4, strip-shaped gluing 5 or the combination of the point-shaped gluing points 4 and the strip-shaped gluing 5, and the distance between the point-shaped gluing points 4 or the strip-shaped gluing 5 is as follows: l is the length of the space and takes the values of 20, 25, 30, 35, 40, 45, 50, 60, 70 and 80mm, W is the width of the space and takes the values of 20, 25, 30, 35, 40, 45, 50, 60, 70 and 80mm, wherein L and W can be combined by taking any one value respectively.

Claims

1. The utility model provides a high accuracy composite filter cloth which characterized in that: the cloth comprises three cloth layers of filter paper (1), non-woven fabric (2) and woven fabric (3); the filter paper (1) is composed of fibers and has a gap with a certain specification and size; the nonwoven fabric (2) is a fiber web composed of thermoplastic fibers; the woven fabric (3) is a latticed plain woven fabric, and the plain woven fabric is formed by weaving a plurality of warps and wefts, wherein the warps and the wefts are vertical to each other; the three layers of the filter paper (1), the non-woven fabric (2) and the woven fabric (3) are mutually bonded in the combination form of equal-distance and uniform point-shaped bonding points (4), strip-shaped bonding points (5) or point-shaped bonding points (4) and strip-shaped bonding points (5), and the distance between the point-shaped bonding points (4) or the strip-shaped bonding points (5) is as follows: l is the length of the space and takes the values of 20, 25, 30, 35, 40, 45, 50, 60, 70 and 80mm, W is the width of the space and takes the values of 20, 25, 30, 35, 40, 45, 50, 60, 70 and 80mm, wherein L and W can be combined by taking any one value respectively.