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Monofilament filter fabric for coal washing and preparation method thereof

A monofilament and filter cloth technology, which is applied in the field of monofilament filter cloth for coal washing and its preparation, can solve the problems of reducing loom production efficiency, increasing production cost, and reducing production efficiency, and achieves improved external appearance, extended service life, The effect of improving productivity

Inactive Publication Date: 2013-12-11
JIXI HENGRUN FILTER CLOTH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the low monofilament strength of the polypropylene material, in the process of using monofilament weaving, it is easy to break the monofilament, resulting in the failure of the loom, which greatly reduces the production efficiency of the loom, and then reduces the production efficiency. increased production costs

Method used

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  • Monofilament filter fabric for coal washing and preparation method thereof
  • Monofilament filter fabric for coal washing and preparation method thereof
  • Monofilament filter fabric for coal washing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0042] Table 2 embodiment 1-4 prepares the technological condition of monofilament filter cloth

[0043]

[0044]

[0045] The monofilament strength of the high-density polyethylene and polypropylene blended provided by Examples 1-4 can reach 59-63cN / tex, and the monofilament breakage will not occur when it is used for weaving, and the loom can be produced smoothly. Compared with polypropylene monofilament weaving, the production efficiency of the loom is greatly improved and the production cost is reduced.

[0046] The material, weight and breaking strength of the monofilament filter cloth for coal washing provided in Examples 5-8 are shown in Table 3.

[0047] The material, weight and breaking strength of the monofilament filter cloth for coal washing provided by table 3 embodiment 5-8

[0048]

[0049]

Embodiment 5-8

[0051] Table 4 embodiment 5-8 prepares the technological condition of monofilament filter cloth

[0052]

[0053]

[0054] The monofilament strength of high-density polyethylene and polypropylene blended provided by Examples 5-8 can reach 60-63cN / tex, and the situation of monofilament breakage will not occur when using it for weaving, and the loom can be produced smoothly. Compared with polypropylene monofilament weaving, the production efficiency of the loom is greatly improved and the production cost is reduced; at the same time, the monofilament filter cloth is green, which makes the surface of the filter cloth better and more attractive to consumers.

[0055] The material, weight and breaking strength of the monofilament filter cloth for coal washing provided in Examples 9-12 are shown in Table 5.

[0056] The material, weight and breaking strength of the monofilament filter cloth for coal washing provided by table 5 embodiment 9-12

[0057]

[0058]

Embodiment 9-12

[0060] Table 6 embodiment 9-12 prepares the technological condition of monofilament filter cloth

[0061]

[0062]

[0063] The monofilament strength of the high-density polyethylene and polypropylene blended provided by Examples 9-12 can reach 60-63cN / tex, and the monofilament breakage will not occur when using it for weaving, and the loom can be produced smoothly. Compared with the monofilament weaving made of polypropylene material, the production efficiency of the loom is greatly improved, and the production cost is reduced; meanwhile, in Examples 9-12, the matting agent can choose titanium dioxide and other substances that can whiten. Using matting agent as one of the raw materials to produce monofilament filter cloth can improve the optical reflection performance of the monofilament filter cloth surface, reduce the transparency of the monofilament filter cloth, and increase the whiteness of the monofilament filter cloth. The resulting monofilament filter cloth has ...

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Abstract

The invention relates to the field of the filter materials and in particular relates to a monofilament filter fabric for coal washing and a preparation method thereof. The monofilament filter fabric is prepared from the following raw materials by weight percent: 50-75% of high density polyethylene, 24.5-48% of polypropylene and 0.2-2% of white oil. The preparation method of the monofilament filter fabric comprises the following step of: forming primary filaments through extrusion, wherein the front-end heating temperature of an extruder used for extrusion ranges from 160 to 164 DEG C, while the middle-end heating temperature of the extruder ranges from 255 to 260 DEG C and the rear-end heating temperature of the extruder ranges from 255 to 275 DEG C; the heating temperature of a die head ranges from 260 to 280 DEG C; the extrusion speed ranges from 17 to 19 m / min. Compared with the monofilament filter fabric in the prior art, the monofilament filter fabric has the advantages that the breaking strength is obviously improved; no breakage is caused in the monofilament weaving process to affect the production efficiency of a waving machine; as a result, the production efficiency is improved and the economic benefit is increased; meanwhile the service life of the filter fabric is prolonged; in addition, the appearance of the filter fabric is also improved so that the competitive force of the product can be improved.

Description

technical field [0001] The invention relates to the field of filter materials, in particular to a monofilament filter cloth for coal washing and a preparation method thereof. Background technique [0002] In the process of coal washing, when using vacuum filter, centrifuge, belt filter or plate and frame filter to separate the suspension from solid to liquid, filter cloth is mostly used as the filter medium. Among them, the monofilament filter cloth is woven from a single synthetic fiber, which has the advantages of high strength, not easy to block, continuous yarn, high stability, not easy to deform, uniform pore size, smooth surface, easy to peel off the filter cake, and easy to clean the filter cloth , easy regeneration, long life and other advantages, it has developed rapidly in recent years. [0003] In the related technology, the monofilament filter cloth for coal washing is generally made of polypropylene material, and is prepared through the processes of batching, e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/08D06N7/02D01F8/06D01F1/10
Inventor 张天洲徐治功康国全张华鹏
Owner JIXI HENGRUN FILTER CLOTH
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