Preparing method of green compound filter core material for indoor air purifier

A composite filter element and indoor air technology, applied in chemical instruments and methods, separation methods, applications, etc., to achieve the effects of long service life, excellent comprehensive performance, and low cost

Inactive Publication Date: 2016-12-14
ZHEJIANG SCI-TECH UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there has not been a related technology that uses 100% of different types of plant fiber raw materials to prepare green composite filter materials for indoor air purifiers.

Method used

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  • Preparing method of green compound filter core material for indoor air purifier
  • Preparing method of green compound filter core material for indoor air purifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) beating the rice straw pulp board and the mercerized pulp board to 30SR° and 34SR° respectively, and the beating concentration is 1%, so as to obtain the beaten rice straw pulp and mercerized pulp;

[0021] 2) the beating rice straw slurry obtained in step 1) is made into quantitatively 62g / m 2 The upper filter element material;

[0022] 3) The beating mercerized slurry obtained in step 1) is made into quantitatively 55g / m 2 The lower filter element material;

[0023] 4) adopting the interlayer wet compound process to obtain the upper layer filter element material and the lower layer filter element material above, wherein the mass ratio of the upper layer filter element material and the lower layer filter element material is 2:1, pressing and compounding to form the composite filter element material in a wet state;

[0024] 5) Dry the wet composite filter element material obtained in step 4) at 70° C. and a vacuum of 0.8 MPa for 40 minutes to obtain a green composi...

Embodiment 2

[0026] 1) beating the straw pulp board and the mercerized pulp board to 32SR° and 36SR° respectively, and the beating concentration is 0.5%, to obtain the beaten wheat straw pulp and mercerized pulp;

[0027] 2) The beating wheat straw slurry obtained in step 1) is made into a quantitative value of 70g / m 2 The upper filter element material;

[0028] 3) The beating mercerized slurry obtained in step 1) is made into a quantitative ratio of 65g / m 2 The lower filter element material;

[0029] 4) adopt the interlayer wet compound process to obtain the upper layer filter element material and the lower layer filter element material above, wherein the mass ratio of the upper layer filter element material and the lower layer filter element material is 3:1, press and compound, and form the composite filter element material in a wet state;

[0030] 5) Dry the wet composite filter element material obtained in step 4) at 80° C. and a vacuum of 0.7 MPa for 50 minutes to obtain a green com...

Embodiment 3

[0032] 1) beat the bagasse pulp board and the mercerized pulp board to 36SR° and 30SR° respectively, and the beating concentration is 0.8%, to obtain the bagasse pulp and the mercerized pulp through beating;

[0033] 2) the bagasse slurry obtained in step 1) is made into quantitatively 60g / m through beating 2 The upper filter element material;

[0034] 3) The beating mercerized slurry obtained in step 1) is made into a quantitative ratio of 60g / m 2 The lower filter element material;

[0035] 4) adopting the interlayer wet compound process to obtain the upper layer filter element material and the lower layer filter element material above, wherein the mass ratio of the upper layer filter element material and the lower layer filter element material is 4:1, pressing and compounding to form the composite filter element material in a wet state;

[0036] 5) Dry the wet composite filter material at 90° C. and a vacuum of 0.6 MPa for 35 minutes to obtain a green composite filter mate...

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Abstract

The invention discloses a preparing method of a green compound filter core material for an indoor air purifier. The preparing method includes the following steps that 1, non-wood fiber pulp and mercerized pulp are obtained through pulping; 2, the non-wood fiber pulp is made into an upper layer filter core material; 3, the mercerized pulp is made into a lower layer filter core material; 4, an interlayer wet method compound process is adopted to press and compound the upper layer filter core material and the lower layer filter core material into the composite filter core material in a moistened state; 5, the composite filter core material in a moistened state is dried and formed to obtain the green compound filter core material for the indoor air purifier, wherein the pore diameter of the green compound filter core material is 0.5-0.75 micrometers. 100% of plant fibers of different types are adopted, the filtering quality of the filter material is improved to the maximum, the green compound filter core material which is used for the indoor air purifier and is balanced in comprehensive filtering performance, high in biodegradability, environmentally friendly and excellent is trial-produced, which is of great significance in research and development of domestic compound filter core materials.

Description

technical field [0001] The invention belongs to the field of filter material preparation, and in particular relates to a preparation method of a green composite filter material for an indoor air purifier. Background technique [0002] Nearly 300,000 people die from asthma every year in the world, of which children account for 35%, and the incidence of lung cancer continues to rise. In most areas of our country, especially in North China where industries are concentrated, PM2.5 accounts for more than half of the mass of suspended particulate matter in the air. Therefore, the application range of air filtration will continue to expand. The air filtration system must not only protect mechanical equipment, but also protect human health. Nowadays, people spend more than 90% of their time indoors, and the indoor air pollution level is 2-5 times that of outdoors. Indoor air pollution has become an invisible killer that endangers human health. Using an air purifier is an effective...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D46/12F24F1/02F24F13/28
CPCB01D39/14B01D39/1615B01D46/12F24F1/02F24F13/28B01D2239/0216B01D2239/0636B01D2239/065B01D2239/10
Inventor 张勇邵岚陈艳霞王雷姚菊明
Owner ZHEJIANG SCI-TECH UNIV
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