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Combined multi-stage filter core and its making method

A technology of filter element and composite layer, which is applied in the field of composite multi-stage filter element and its manufacture, can solve the problems of filter element clogging, low filtration precision, short service life, etc., and achieve the effect of improved removal rate, high filtration precision and long service life

Inactive Publication Date: 2003-01-15
欢乐海(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of filter element is easily blocked by impurities in the oil, so the service life is short and the filtration precision is low. some additives filter out

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: make the filter element of the present invention with composite material A, wherein composite material A is prepared by the following method:

[0047] (1) Crush the peanut shells to 5-50 mesh with a rotary cutter, sieve and sort according to 5-10 mesh, 10-30 mesh, and 30-50 mesh, and then soak them in 3% p-toluenesulfonic acid for 5 hours , it is advisable to completely immerse the peanut shells in the acid solution, remove them separately, and add 1% hydrogen peroxide and 1% tannin respectively, mix and set aside;

[0048] (2) Dry the leftover cottonseed husks produced by the oil factory, remove part of the remaining cottonseed kernels, sieve and sort by 10-30 mesh and 30-50 mesh, soak them in 8% sodium hydroxide lye for 15 minutes hours, it is advisable to completely immerse the cottonseed shells with the lye, and then fish them out for subsequent use;

[0049] (3) Cut and crush banana leaves, coconut leaves, coconut peel, asparagus, scutellaria, mat gr...

Embodiment 2

[0059] Embodiment 2: This embodiment uses the A-type material, and the processing method of the composite material A and the manufacturing method of the filter element are the same as in Embodiment 1, except that the concentration of the acid and lye and the ratio of the materials are used.

[0060] Wherein, (1) was soaked with 7% hydrochloric acid for 2 hours; (2) was soaked with 3% sodium hydroxide lye for 20 hours; (3) was soaked with 2% liquid alkali for 2 hours; (4) was soaked with Soak in 5% liquid alkali for 15 hours;

[0061] The raw materials are mixed and stirred according to the following parts by weight to form 5-10 mesh material, 10-30 mesh material and 30-50 mesh material respectively:

[0062] Peanut shells: 70 kg; Cottonseed shells: 5 kg; Coconut leaves: 5 kg;

[0063] Coconut shell: 50 kg; Alumina: 3 kg; Silica gel: 1 kg; Activated carbon:

[0064] 10 kg; 2 kg of 3% sodium hydroxide solution.

Embodiment 3

[0065] Embodiment 3: This embodiment uses A-type material, and the processing method of composite type material A and the manufacture method of filter core are identical with embodiment 1, 2, and difference is the use ratio of the concentration of use acid, lye and material.

[0066] Wherein, (1) was soaked with 5% hydrochloric acid for 3 hours; (2) was soaked with 5% sodium hydroxide lye for 18 hours; (3) was soaked with 2% liquid alkali for 3 hours; (4) was soaked with Soak in 5% liquid alkali for 18 hours;

[0067] The raw materials are mixed and stirred according to the following parts by weight to form 5-10 mesh material, 10-30 mesh material and 30-50 mesh material respectively:

[0068] 64 kg of peanut shells; 14 kg of cottonseed shells; 4 kg of coconut leaves;

[0069] 13 kg of coconut shell; 1 kg of alumina; 1 kg of silica gel; 3 kg of activated carbon;

[0070] 1 kg of 6% sodium hydroxide solution.

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Abstract

A multi-stage composite filter core is prepared from the chemically processed composition through pulverizing, chemically processing, stirring, cold pressing, drying and hot die pressing. It is a hollow cylinder with 3 coaxial layers, which have 5-10 meshes, 10-30 meshes and 30-50 meshes from outside to inside. Its advantages are high precision and long service life.

Description

technical field [0001] The invention relates to a filter core and a manufacturing method thereof, in particular to a composite multistage filter core and a manufacturing method thereof. technical background [0002] At present, the filter element of the internal combustion engine oil filter is mostly composed of a wire mesh and a filter layer. The filter layer is generally paper, and some fibers are used as the filter layer. This kind of filter element is easily blocked by impurities in the oil, so the service life is short and the filtration precision is low. Some additives are filtered out. Contents of the invention [0003] The purpose of the present invention is to provide a composite multi-stage filter core with long service life, high filtration precision and capable of selectively adsorbing impurities. [0004] Another object of the present invention is to provide a method for manufacturing the above-mentioned composite multi-stage filter element. [0005] In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/18
Inventor 李少华李安张化明
Owner 欢乐海(北京)科技有限公司
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