A kind of preparation method of cellulose composite filter element material for engine air filter

A composite filter element and engine technology, which is used in fiber raw material processing, natural cellulose pulp/paper, paper machines, etc., can solve the problems of composite filter element materials for engine air filtration, etc., which can improve reliability and service life. The effect of reducing production costs and reducing emissions

Active Publication Date: 2017-11-17
HANGZHOU XINHUA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Up to now, there has not been any related process technology that utilizes 100% different types of plant fibers to manufacture new composite filter materials for engine air filtration.

Method used

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  • A kind of preparation method of cellulose composite filter element material for engine air filter
  • A kind of preparation method of cellulose composite filter element material for engine air filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1) Beat pine wood pulp and poplar wood pulp to 25SR° and 30SR°, respectively, with a beating concentration of 1%, to obtain beaten pine wood pulp and poplar wood pulp;

[0024] 2) Make the beaten pine pulp obtained in step 1) into a basis weight of 50g / m 2 The upper filter element material;

[0025] 3) The beaten pine wood pulp and the beaten poplar wood pulp obtained in step 1) are combined with a mass ratio of 3:7 to make a basis weight of 50g / m 2 The lower filter element material;

[0026] 4) Using an interlayer wet composite process, the upper filter element material obtained in step 2) and the lower filter element material obtained in step 3) are pressed and combined to form a composite filter element material in a wet state;

[0027] 5) Dry the composite filter element material in the wet state obtained in step 4) at a temperature of 104°C and a vacuum of 0.8 MPa for 20 minutes to obtain a cellulose composite filter element material for engine air filtration with a pore si...

Embodiment 2

[0029] 1) Beat the pine wood pulp and eucalyptus pulp to 27SR° and 28SR°, respectively, with a beating concentration of 1.5%, to obtain beaten pine wood pulp and poplar wood pulp;

[0030] 2) Make the beaten pine pulp obtained in step 1) into a basis weight of 50g / m 2 The upper filter element material;

[0031] 3) The beaten pine pulp and the beaten eucalyptus pulp obtained in step 1) are combined with a mass ratio of 5:5 to make a basis weight of 50g / m 2 The lower filter element material;

[0032] 4) Using an interlayer wet composite process, the upper filter element material obtained in step 2) and the lower filter element material obtained in step 3) are pressed and combined to form a composite filter element material in a wet state;

[0033] 5) Dry the composite filter element material in the wet state obtained in step 4) for 15 minutes at a temperature of 105°C and a vacuum of 0.9 MPa to obtain a cellulose composite filter element material for engine air filtration with a pore siz...

Embodiment 3

[0035] 1) Beat the pine wood pulp and acacia pulp to 30SR° and 25SR°, respectively, with a beating concentration of 2%, to obtain beaten pine wood pulp and acacia pulp;

[0036] 2) Make the beaten pine pulp obtained in step 1) into a basis weight of 50g / m 2 The upper filter element material;

[0037] 3) Combine the beaten pine wood pulp and beaten acacia pulp obtained in step 1) at a mass ratio of 7:3 to make the basis weight 50g / m 2 The lower filter element material;

[0038] 4) Using an interlayer wet composite process, the upper filter element material obtained in step 2) and the lower filter element material obtained in step 3) are pressed and combined to form a composite filter element material in a wet state;

[0039] 5) Dry the composite filter element material in the wet state obtained in step 4) for 10 minutes at a temperature of 106°C and a vacuum of 1 MPa to obtain a cellulose composite filter element material for engine air filtration with a pore size of 13 μm (c ).

[0040...

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Abstract

The invention discloses a preparation method of a cellulose composite filter element material for engine air filters. The preparation method comprises the following steps: 1) respectively beating plant cellulose A and plant cellulose B to obtain a pulp A and a pulp B; 2) carrying out paper making on the pulp A to obtain an upper filter element material; 3) carrying out paper making on the pulp A and pulp B in a mass ratio of 3:7-7:3 to obtain a lower filter element material; 4) laminating the upper filter element material and lower filter element material by an interlayer wet lamination technique to obtain a wet-state composite filter element material; and 5) carrying out drying forming on the wet-state composite filter element material to obtain the cellulose composite filter element material for engine air filters, wherein the pore size of the cellulose composite filter element material is 10-15 mu m. The method lowers the production cost, and prolongs the service life of the filter element; the filter element can be naturally degraded, and can not do harm to the environment; and thus, the method is more energy-saving and environment-friendly.

Description

Technical field [0001] The invention belongs to the field of filter element material preparation, and in particular relates to a method for preparing a cellulose composite filter element material for engine air filtration. Background technique [0002] The total demand for air filters for vehicles in my country has increased from 390 million sets in 2006 to 570 million sets in 2010, and is expected to reach 1.16 billion sets in 2020. As one of the "three filters" of the automobile engine, the air filter is an important part of the engine. It is located in the engine air intake system. It is composed of a filter element and a casing. The filter element is the main filtering part, which filters the air. The casing is the filter element. Provide the necessary external protection. The air filter mainly provides clean air for the automobile engine to prevent the air containing impurities particles from being sucked in during operation, which will increase the abrasion and damage of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F11/14D21H11/00
CPCD21F11/145D21H11/00
Inventor 邵岚张勇王雷姚菊明陈亚军陈艳霞
Owner HANGZHOU XINHUA GROUP
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