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Punched felt with enhanced key parts of base cloth

A technology of needle-punched felt for key parts, applied in the field of reinforced needle-punched felt for key parts of the base fabric, which can solve problems such as wasting material costs, and achieve the effect of extending the life of the filter bag, prolonging the service life, and good corrosion resistance

Active Publication Date: 2015-04-15
FUJIAN LONGKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the operating conditions of the filter bag change, the needle-punched felt made of strong-resistant materials has received widespread attention, but the uniformity improves the strength of the needle-punched felt as a whole. For non-stress-concentrated locations, the use of strong-resistant materials will waste material costs

Method used

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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  • Punched felt with enhanced key parts of base cloth
  • Punched felt with enhanced key parts of base cloth
  • Punched felt with enhanced key parts of base cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see Figure 1~4 , the embodiment of the present invention is made up of fibrous layer 1 and base cloth 2; : 4, 7: 3, 8: 2, 9: 1 blended in equal proportions, the fiber material can be PPS fiber, PTFE fiber, P84 fiber, glass fiber or other materials. The base fabric 2 is composed of transverse yarns 2-1, reinforcing transverse yarns 2-2 and longitudinal yarns 2-3, and the yarn material can be PPS fiber, PTFE fiber, P84 fiber, glass fiber or other materials. The base fabric 2 can be made of yarns of one material, and the reinforcing transverse yarns 2-2 are densely arranged within the range of 10-30 mm above and below the horizontal ribs of the matching bag cage; Within the range of 10 to 30 mm above and below the cross bars of the cage, the reinforcement transverse yarn 2-2 is made of a material with better corrosion resistance and (or) strength (such as PTFE long fiber).

[0024] Compared with the existing felt cloth, the yarn of the base cloth and the bag cage are ma...

Embodiment 2

[0027] Similar to Example 1, the difference is that the fiber layer is made of PTFE fiber, and the yarn material is P84 fiber.

Embodiment 3

[0029] Similar to Example 1, the difference is that the fiber layer is made of P84 fiber, and the yarn material is PTFE fiber.

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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Abstract

The invention provides a punched felt with enhanced key parts of base cloth and relates to dust filtering felt cloth. The invention provides the punched felt with the enhanced key parts of the base cloth, which has the advantages that the strength of the punched felt can be improved by improving the strength of the base cloth on a contact position of a bag cage transverse bar. The punched felt is provided with a fiber layer and the base cloth, wherein the fiber layer is composed of fibers with at least one texture; the base cloth is composed of transverse yarns and longitudinal yarns; in a range that the distance between the transverse yarns and the upper side of the matched bag cage transverse bar and the distance between the transverse yarns and the lower side of the matched bag cage transverse bar are 10mm-30mm, the distribution density of the transverse yarns is 1.1-3 times that of other parts. According to the punched felt with the enhanced key parts of the base cloth, the strength of an easily-damaged position of a filtering bag is improved and the service life of the filtering bag is prolonged. On the existing structural basis of the punched felt, the base cloth on the contact positions of the punched felt and the bag cage transverse bar is enhanced; a stress concentration phenomenon easily occurs on the positions of the base cloth, and the cloth is firstly broken under the flushing of smoke, so that after the positions are enhanced, the strength of each piece of the felt cloth on the whole filtering bag reaches a relative balance state and the service life of the filtering bag is prolonged.

Description

technical field [0001] The invention relates to a dust filter felt cloth, in particular to a reinforced needle-punched felt for key parts of the base cloth used for purifying flue gas and dust in industrial production processes such as thermal power, cement, and steel. Background technique [0002] In the field of atmospheric environmental protection, with the extensive application of electric bag composite dust collectors and cloth bag dust collectors, the filter bag is the core component of the dust collector, and its performance determines the operation status of the entire dust removal system. The life of the filter bag affects the emission of the dust collector. The life of the bag is related to the strength of the filter bag. As for dust filter cloth, needle felt has the largest market share at present, and there are many varieties of needle felt, mainly for different working conditions. Most of the methods used are to choose different materials for different working ...

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 Patents(China)
IPC IPC(8): B01D39/14B01D46/06B32B5/24
Inventor 郑奎照卢锦奎赖碧伟
Owner FUJIAN LONGKING
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