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Method for manufacturing needled filter felt for asphalt mixing

A production method and technology of filter felt, which is applied in the field of production of needle-punched filter felt for asphalt mixing, can solve the problems of expensive raw materials, fast discharge of asphalt, and inability to use filter bags, etc., and achieve low production cost and strong wear resistance , the effect of prolonging the service life

Inactive Publication Date: 2019-05-21
JIANGSU AOKAI ENVIRONMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Asphalt dust has edges and corners under the microscope, and a large amount of asphalt dust will break through the filter bag during filtration, so conventional filter bags cannot be used; in addition, the asphalt discharge speed is fast and the impact force is strong, which will also cause the filter bag to be easily damaged and shorten the service life. shortening; the filter bags used for asphalt mixing in the prior art have problems such as expensive raw materials, high production costs, and short service life

Method used

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Embodiment Construction

[0016] In order to make the purpose of the present invention, technical scheme and beneficial technical effects thereof clearer, the present invention will be further described in detail below in conjunction with specific embodiments; the method for making a needle-punched filter felt for asphalt mixing is characterized in that it includes the following steps: Step 1, fiber mixing: take 25% polysulfone fiber, 40% white polyester, and 35% rice polyester, and mix and disperse the fibers uniformly in proportion; spray antistatic agent liquid evenly during mixing and dispersing; The antistatic agent liquid adopting mass fraction is that the antistatic agent of 5% and the water configuration of 95% form; Step 2, processing workshop work preparation: opener, cotton box, carding machine, cross-lapper are fully ground discharge, and the processing workshop humidifies the humidity to more than 45%; Step 3, making the fleece layer: feeding the mixed fibers into the carding machine, and c...

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Abstract

A method for manufacturing needled filter felt for asphalt mixing comprises the following steps: 1, fiber mixing; 2, work preparation in a processing workshop; 3, preparation of a web layer; 4, preparation of a preliminary felt; 5, production of a raw felt; and 6, production of the needled filter felt. The method has the advantages of simplicity and convenience in operation, low production cost, and suitableness for mass production; and the needled filter felt made by the production method has the advantages of high cost performance, good filtration efficiency, replacement of an aramid filtermaterial, filling the gap in the flame-retardant and efficient gradient filter materials in the asphalt mixing industry, superior ash removal performance, low resistance, prolonged service life, stable quality, high resistance and cost reduction.

Description

technical field [0001] The invention relates to the field of needle-punched filter felts, in particular to a method for making needle-punched filter felts for asphalt mixing. Background technique [0002] Asphalt dust has edges and corners under the microscope, and a large amount of asphalt dust will break through the filter bag during filtration, so conventional filter bags cannot be used; in addition, the asphalt discharge speed is fast and the impact force is strong, which will also cause the filter bag to be easily damaged and shorten the service life. Shortening; the filter bag used for asphalt mixing in the prior art has problems such as expensive raw materials, high manufacturing cost, and short service life. Contents of the invention [0003] The object of the present invention is to provide a method for making a needle-punched filter felt for asphalt mixing, which is simple, has good filtering effect, and solves the above technical problems. [0004] In order to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D46/00B01D46/02
Inventor 冯阳李凤琴
Owner JIANGSU AOKAI ENVIRONMENT TECH CO LTD
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