Seamless cylindrical filter bag and manufacturing method thereof

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: 2021-01-15
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

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  • Seamless cylindrical filter bag and manufacturing method thereof
  • Seamless cylindrical filter bag and manufacturing method thereof
  • Seamless cylindrical filter bag and manufacturing method thereof

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 formed by compounding a first non-woven fabric, a cylindrical fabric,a second non-woven fabric and a polytetrafluoroethylene microporous membrane in sequence from inside to outside, wherein the cylindrical cloth is woven on a circular weaving machine by adopting a weaving method or is woven on a computerized flat knitting machine by adopting a knitting method. According to a compounding step, the two ends of a filter bag are bonded into a whole through heat energyby using an ultrasonic welding machine, or bag openings at the two ends are bonded through heat energy by using the ultrasonic welding machine, and meanwhile, the multi-layer material welding machineof the bag body is bonded together through dots. According to the filter bag manufactured by the manufacturing process disclosed by the invention, the phenomena of breakage and tearing caused by sewing threads of the filter bag are avoided, the problem that the strength of the filter material is reduced due to damage to fibers and base cloth of the filter bag caused by spunlace and needling is thoroughly solved, the product quality of the environment-friendly filter material is improved, and the service life of the environment-friendly filter material is prolonged.

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

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Application Information

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Patent Type & Authority Applications(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 顾珂里杨正香龚震宇曹青青吴济宏王海艳顾钰良王震声章军
Owner JIANGSU HENGSHENG ENVIRONMENTAL SCI AN TECH CO LTD
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