A kind of seamless cylindrical filter bag and its manufacturing method

A technology of filter bags and cylinders, which is applied in the field of seamless cylindrical filter bags and its manufacturing, to avoid damage, solve the problem of reducing the strength of filter materials, and prevent cracking

Active Publication Date: 2022-04-22
JIANGSU HENGSHENG ENVIRONMENTAL SCI AN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Use above-mentioned two kinds of equipment to weave the filter material of the environmental protection field that is raw material with high-tech fiber, synthetic fiber and inorganic fiber and have not yet been reported

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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  • A kind of seamless cylindrical filter bag and its manufacturing method
  • A kind of seamless cylindrical filter bag and its manufacturing method
  • A kind of seamless cylindrical filter bag and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The cylindrical filter bag prepared in this example is suitable for use under the conditions of an instantaneous temperature of 300°C and a long-term filtration temperature of about 280°C.

[0047] The 1350D basalt fiber bulked yarn produced by Zhejiang Shijin Basalt Fiber Co., Ltd. is used to weave cylindrical cloth on the CMS530HP35.2 flat knitting machine produced by STOLL, Germany, with a speed of 1.3m / min. This model is based on the CMS530HP35.1 computer On the basis of the flat knitting machine, the creel spacing of the creel is enlarged to 350mm to meet the needs of using large package yarn bobbins.

[0048] During weaving, in order to reduce the burrs of the yarn due to friction when the basalt yarn passes through the sinker and the tooth mouth piece, spray silicone oil on the yarn tube in advance, and seal it with a plastic bag for 4-5 hours, so that the silicone oil can penetrate into the surface of the inner fiber , Pre-waxing treatment is carried out on the ...

Embodiment 2

[0057] The cylindrical filter bag produced in this embodiment is suitable for use under the working conditions of a filtration temperature of 230°C.

[0058] Using 450D polytetrafluoroethylene filament produced by Shanghai Lingfulong New Material Technology Co., Ltd., weaving cylindrical cloth on WYZ-751×4 circular loom produced by Sail Machinery (Guangzhou) Co., Ltd. The model of this machine is Based on the WYZ-750×4 circular loom, the creel spindles have been expanded to 800 spindles, and the tube spacing has been increased to 450mm to meet the needs of large-capacity weaving with large packages. Before weaving, the filament tubes are stacked together, sprayed with 10% silicone oil emulsion, covered with plastic cloth, and treated for 5 hours, so that the silicone oil can penetrate into the surface of the inner fiber and prevent the filament from fluffing due to friction. The diameter of the cylindrical cloth is 300mm, and the weight is 170g / ㎡. During weaving, the channels...

Embodiment 3

[0069] The cylindrical filter bag produced in this embodiment is suitable for use under the working conditions of a filtration temperature of 230°C.

[0070] The polyimide filament 1500D produced by Shanghai Lingfulong New Material Technology Co., Ltd. is used to weave cylindrical cloth on the WYZ-751×4 circular loom produced by Sail Machinery (Guangzhou) Co., Ltd. The model of this machine is Based on the WYZ-750×4 circular loom, the creel spindles have been expanded to 800 spindles, and the tube spacing has been increased to 450mm to meet the needs of large-capacity weaving with large packages. Before weaving, the filament tubes are stacked together, sprayed with 10% silicone oil emulsion, covered with plastic cloth, and treated for 5 hours, so that the silicone oil can penetrate into the surface of the inner fiber and prevent the filament from fluffing due to friction. The diameter of the cylindrical cloth is 300mm, and the weight is 165g / ㎡. During weaving, the channels th...

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Abstract

The invention discloses a seamless cylindrical filter bag and a preparation method thereof. The seamless cylindrical filter bag is sequentially composed of a first nonwoven fabric, a cylindrical fabric, a second nonwoven fabric and polytetrafluoroethylene microfibers from the inside to the outside. Porous film composite; Among them, the weaving of the cylindrical cloth is woven by weaving on a circular loom or by knitting on a computerized flat knitting machine. The compounding is to bond the two ends of the filter bag into one body through thermal energy with an ultrasonic welding machine, or to bond the bag openings at both ends with an ultrasonic welding machine through thermal energy, and at the same time, the multi-layer material welding machine of the bag body is bonded to Together. The filter bag produced by the manufacturing process of the present invention avoids damage and tearing caused by the suture of the filter bag, and completely solves the damage to the fiber and base cloth of the filter bag caused by spunlace and needle punching The trouble of reducing the strength of the filter material has improved the product quality and service life of the environmentally friendly filter material.

Description

technical field [0001] The invention relates to a seamless cylindrical filter bag and a manufacturing method thereof, belonging to the field of environmental protection. The cylindrical filter bag is not only suitable for impurity removal and filtration of medium and low temperature liquids, but also for dust removal and air purification of flue gas under high temperature working conditions. Background technique [0002] The filter bag is the core component of the bag filter in the dust removal technology, and its function is to capture the dust in the flue gas to meet the requirements of environmental protection and pollution control. Most of the filter bag devices currently used for high-temperature flue gas dust removal in industries such as iron and steel, metallurgy, chemical industry, cement manufacturing, and waste incineration use high-tech fibers such as polyphenylene sulfide (PPS), polyimide (P84), aromatic Fibers such as rayon, polysulfone fiber, and inorganic fi...

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): B01D46/00B01D46/02B01D29/11B01D29/27B01D39/16D03D1/00D03D11/02D04B1/22D04H1/54D04H1/593D04H1/559D04H1/541B32B9/00B32B9/04B32B27/02B32B27/12B32B27/28B32B27/32B32B3/24B32B7/05B32B1/00B32B37/06B32B37/00
CPCB01D46/0001B01D46/02B01D29/111B01D29/27B01D39/1623D03D1/00D03D11/02D04B1/22D04H1/54D04H1/593D04H1/559D04H1/541B32B5/022B32B5/024B32B5/26B32B27/12B32B27/322B32B3/266B32B7/05B32B1/00B32B37/06B32B37/0084B01D2258/0283B01D2239/0618B01D2239/10B32B2250/24B32B2250/242B32B2262/02B32B2262/0253B32B2262/10
Inventor 顾珂里王海艳杨正香龚震宇曹青青吴济宏顾钰良王震声章军
Owner JIANGSU HENGSHENG ENVIRONMENTAL SCI AN TECH CO LTD
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