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Composite filter paper manufacturing method and device capable of improving surface dust holding capacity

A manufacturing method and technology of filter paper, applied in lamination devices, separation methods, chemical instruments and methods, etc., can solve the problems of unstable spinning, difficult to realize industrial production, complex structure, etc., and achieve long service life and convenient production , High filtering effect

Inactive Publication Date: 2016-08-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the electrospinning technology proposed in the patent uses a needle-spraying process, which has a complex structure and unstable spinning, making it difficult to realize industrial production

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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  • Composite filter paper manufacturing method and device capable of improving surface dust holding capacity
  • Composite filter paper manufacturing method and device capable of improving surface dust holding capacity
  • Composite filter paper manufacturing method and device capable of improving surface dust holding capacity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Use polypropylene non-woven fabric with an average diameter of 29.5µm and an average pore diameter of 37.2µm as the base fabric; dissolve glass fiber slices in acetone to prepare a 6% superfine fiber solution;

[0026] (2) The length of the collecting electrode plate 4 is 80cm, and the diameter of the drawing drum electrode 3 is D 3 =50cm, there are 8 cylinders evenly fixed around the drum axis. The output voltage of the high-voltage electric field generator 1 is 35kv, and the distance between the collecting electrode plate 4 and the electrode axis of the wire drawing drum is 20cm. A part of the drawing roller electrode 3 is immersed in the microfiber solution, and the submerged part is 0.3D 3 .

[0027] (3) Under the action of a high-voltage electrostatic field formed between the wire drawing drum electrode 3 and the collecting electrode plate 4, the filamentous fiber solution carried by the wire drawing drum electrode adheres to the base fabric, and the organic ...

Embodiment 2

[0029] (1) Use polyester (PET) non-woven fabric with an average diameter of 19.5 µm and an average pore diameter of 17.2 µm as the base fabric; dissolve cellulose fiber slices in chloroform to prepare a 7% superfine fiber solution;

[0030] (2) The length of the collecting electrode plate 4 is 70cm, and the diameter of the drawing drum electrode 3 is D 3 =40cm, there are 6 cylinders evenly fixed around the drum axis. The output voltage of the high-voltage electric field generator 1 is 40kv, and the distance between the collecting electrode plate 4 and the electrode axis of the wire drawing drum is 15cm. A part of the drawing roller electrode 3 is immersed in the microfiber solution, and the submerged part is 0.2D 3 .

[0031] (3) Under the action of a high-voltage electrostatic field formed between the wire drawing drum electrode 3 and the collecting electrode plate 4, the filamentous fiber solution carried by the wire drawing drum electrode adheres to the base fabric, and t...

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Abstract

The invention discloses a composite filter paper manufacturing method and device capable of improving surface dust holding capacity. The device mainly comprises a high-voltage electric field generator, a liquid storage slot, a drawing cylinder electrode, a collecting electrode plate, a substrate fabric reel, and an oven. The operating method comprises the following steps: dissolving fibers into a solvent to form an ultrafine fiber solution; forming a high-voltage electrostatic field between the drawing cylinder electrode and the collecting electrode plate through the high-voltage electric field generator; adhering the fiber solution to the substrate fabric in a filament form under the action of the strong electric field, thereby compounding an ultrafine fiber surface layer with a substrate fabric; and enabling the compounding product to pass through the oven to volatize the solvent of the ultrafine fiber solution, thereby obtaining the composite filer paper. The composite filter paper is high in filter efficiency, the surface dust holding capacity of the filter paper of is greatly improved, and the service life of the filter paper is prolonged; and the manufacturing method has the advantages of being reasonable in design, high in production efficiency and simple in process, guaranteeing uniform diameter and thickness of composite-layer fibers, and the like.

Description

technical field [0001] The invention belongs to the field of air filter paper manufacturing, and in particular relates to a method and device for making composite filter paper for improving surface dust holding capacity. Background technique [0002] With the continuous improvement of people's living standards, air quality, which is closely related to life, has received more and more attention. Especially for the control of suspended particles in the air environment, higher requirements are put forward in terms of the number and size of purified particles. This puts higher demands on the air purification industry, and it is necessary to develop high-performance air filter materials and devices. Different fiber filter materials have their own advantages and disadvantages. Glass fiber filter material has the characteristics of good temperature resistance, low elongation, high strength, and good corrosion resistance. At the same time, the fiber surface is smooth, the diameter...

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): B01D39/14B01D39/18B32B5/02B32B5/26B32B37/10
CPCB01D39/14B01D39/163B01D39/18B01D2239/0216B01D2239/10B32B5/022B32B5/26B32B37/10B32B2037/1063B32B2250/02B32B2250/20B32B2262/02B32B2305/20B32B2305/22B32B2310/025
Inventor 徐斌龚宇
Owner TONGJI UNIV
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