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High density fibrous filter plate and manufacturing method

A technology of high-density fiber and manufacturing method, applied in the direction of fiberboard, filtration separation, separation method, etc., can solve the problems of danger, low filtration precision, high cost, etc., and achieve the effect of easy operation, convenient implementation, and low cost

Inactive Publication Date: 2005-01-12
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former has high cost, low filtration accuracy, small flux, and is easy to clog (short service time); although the latter can reduce the cost, the filtration accuracy and flux are also not high, and the filtration effect is not good, especially asbestos products. The use of materials restricted by the state, if the asbestos fiber filter plate is used to filter liquids related to human or animal use, it will bring direct or potential hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] The formula of the filter plate is (% by weight): sepiolite fiber 30, pulp fiber 65, adhesive polyvinyl alcohol 2, wet strength agent polyethyleneimine 2 and dry strength agent polyacrylamide 1. Its manufacturing method is:

[0070] 1. Preparation of sepiolite fiber: Superfinely pulverize the selected sepiolite ore particles with a pulverizer, and obtain 300g of sepiolite fiber with a diameter of 10 μm and a length of 200 μm after wind screening;

[0071] 2. Sepiolite fiber beating: first heat the above-mentioned sepiolite fiber, the heating temperature is 220°C, the heating time is 3 hours, it is dispersed in a standard beater for 3 minutes, and it is beaten in a VALLEY beater for 10 minutes. The beating concentration is 3% (i.e. adding 10Kg of water), the beating degree is 90 ° SR, and the sepiolite fiber pulp is obtained;

[0072] 3. Pulp fiber beating: use 700g of kapok fiber to break up in a standard breaker for 30 minutes, then use a VALLEY beater to beat for 30 ...

Embodiment 2

[0079] The formula of the filter plate is (% by weight): sepiolite fiber 19, pulp fiber 75, adhesive polyvinyl alcohol 1.5, wet strength agent polyamide epoxy resin 2, dry strength agent carboxymethyl cellulose 1, retention and drainage aid Agent polyamide 1, precipitant aluminum sulfate 0.5. Its manufacturing method is:

[0080] 1. Preparation of sepiolite fiber: the selected sepiolite ore particles are ultra-finely crushed with a pulverizer, and 200g of sepiolite fiber with a diameter of 10 μm and a length of 200 μm is obtained after wind screening;

[0081] 2. Sepiolite fiber beating: first heat the above-mentioned sepiolite fiber, the heating temperature is 100°C, the heating time is 2 hours, it is dispersed in a standard beater for 4 minutes, and it is beaten in a VALLEY beater for 10 minutes. The beating concentration is 2% (i.e. adding 10Kg of water), the degree of beating is 80 ° SR, and the sepiolite fiber pulp is obtained;

[0082] 3. Pulp fiber beating: use 400g o...

Embodiment 3

[0089] The formula of the filter plate is (weight%): sepiolite fiber 65, pulp fiber 28, adhesive epoxy resin 2, wet strength agent melamine 3, dry strength agent polyacrylamide 2.

[0090] The manufacturing method of fiber filter plate is:

[0091] 1. Preparation of sepiolite fiber: Superfine crush the selected sepiolite ore particles with a pulverizer, and obtain 700g of sepiolite fiber with a diameter of 10 μm and a length of 200 μm after wind screening;

[0092] 2. Sepiolite fiber beating: first heat the above-mentioned sepiolite fiber, the heating temperature is 50°C, the heating time is 2 hours, it is dispersed in a standard beater for 3 minutes, and it is beaten in a VALLEY beater for 5 minutes. The beating concentration is 1% (i.e. adding 70Kg of water), the degree of beating is 85 ° SR, and the sepiolite fiber slurry is obtained;

[0093] 3. Pulp fiber beating: Use 300g of wood pulp fiber, break it in a standard breaker for 20 minutes, and then use a VALLEY beater to ...

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Abstract

A high-density filtering fibreboard is prepared from sepiolite wool, paper pulp fibre, adhesive (polyvinyl alcohol or epoxy resin), wet strengthening agent (polyvinylimine, polyamide epoxy resin, or cyanuramide), and dry strengthening agent (carboxymethyl cellulose or polyacrylamide) through preparing pulp, mixing shaping, baking, and shearing by needed sizes. It has high porosity and filtering throughput.

Description

technical field [0001] The present invention relates to a fiber filter plate and its manufacturing method technology, specifically a high-density fiber filter plate with sepiolite fiber as a functional component and its manufacturing method technology. The international patent classification number is proposed to be Int.Cl7.B01D 29 / 00 . Background technique [0002] Fiber filter plate is an industrial material used for Newtonian fluid filtration, mainly used for filtering various fruit wine, liquor, beer, fruit juice, beverage, cooking oil, petroleum, health care liquid, etc. The existing fiber filter plates can generally be divided into two types: one is a filter plate made of synthetic fiber and plant fiber (such as wood fiber, grass fiber, etc.); the other is a filter plate made of asbestos and paper pulp. . The former has high cost, low filtration precision, small flux, and is easy to block (short service time); although the latter can reduce the cost, the filtration p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/03B01D39/14D21J1/00
Inventor 王继忠张锡民王硕
Owner HEBEI UNIV OF TECH
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