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A kind of preparation method of antistatic refractory fiber felt

A technology of refractory fiber mat and refractory fiber, applied in the field of refractory fiber, can solve problems such as electrostatic effect, achieve the effect of smooth surface, easy parameter control, and increase enterprise benefit

Inactive Publication Date: 2019-06-11
长兴华悦耐火材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that the traditional refractory fiber felt has electrostatic effect, the present invention provides a green and environment-friendly preparation method of antistatic refractory fiber felt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Prepare the antistatic composite binder for use according to the following proportions: phenolic resin 7g, dehydrated alcohol 5g, 0.05g of H 2 N-CH 2 -CH 2 -SO 3 H and polyethylene oxide 0.15g.

[0031] (1) Weigh 65g of alumina, 30g of magnesia, 10g of titanium dioxide and 4g of diyttrium trioxide according to the following proportions, heat it at 200°C for 1 hour, blend and pulverize to obtain the main material with a particle size of 150 mesh;

[0032] (2) Slowly add 12.2g of antistatic composite binder into the main material, put the evenly mixed mixture into a melting furnace and heat it to 1500°C to obtain a molten liquid;

[0033] (3) Filtrate the impurities in the molten liquid, and the filtrate flows into a stirred reactor at 1800° C. and stirs continuously to obtain a spinning solution;

[0034] (4) The spinning solution flows out from the discharge port, enters the centrifugal head and is ejected through the fine holes of the centrifugal head. The centrifu...

Embodiment 2

[0037] Prepare the antistatic composite binder according to the following proportions: phenolic resin 8g, absolute ethanol 6g, 0.1g of NH 2 OH, polyether ester amide 0.1g and 0.1g carboxybetaine graft copolymer.

[0038] (1) Weigh 75g of alumina, 50g of magnesia, 15g of titanium dioxide and 8g of diyttrium trioxide according to the following proportions, heat it at 400°C for 2 hours, blend and pulverize to obtain the main material with a particle size of 240 mesh;

[0039] (2) Slowly add 14.3g of antistatic composite binder into the main material, put the evenly mixed mixture into a melting furnace and heat it to 1500°C to obtain a molten liquid;

[0040] (3) Filtrate the impurities in the molten liquid, and the filtrate flows into a stirred reactor at 1950° C. and stirs continuously to obtain a spinning solution;

[0041] (4) The spinning solution flows out from the discharge port, enters the centrifugal head and is ejected through the fine holes of the centrifugal head. The c...

Embodiment 3

[0044] Prepare the antistatic composite binder for use according to the following proportions: phenolic resin 7.5g, absolute ethanol 5.5g, 0.03g of NH 2 OH and 0.07g of H 2 N-CH 2 (COOH), carboxybetaine graft copolymer 0.18g.

[0045] (1) Weigh 70g of alumina, 40g of magnesia, 12g of titanium dioxide and 6g of diyttrium trioxide according to the following proportions, heat it at 300°C for 1.5h, blend and pulverize to obtain the main material with a particle size of 200 mesh;

[0046] (2) Slowly add 13.28g of antistatic composite binder into the main material, put the evenly mixed mixture into a melting furnace and heat it to 1500°C to obtain a molten liquid;

[0047] (3) Filtrate the impurities in the molten liquid, and the filtrate flows into a stirred reactor at 1900° C. and stirs continuously to obtain a spinning solution;

[0048] (4) The spinning solution flows out from the discharge port, enters the centrifugal head and is ejected through the fine holes of the centrif...

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Abstract

The invention provides a preparation method for antistatic refractory fiber felt. The felt is prepared from, by weight, 65-75 parts of aluminium oxide, 30-50 parts of magnesium oxide, 10-15 parts of titanium dioxide and 4-8 parts of yttria. The method includes the steps of dosing, conducting heat treatment for obtaining a main material, adding an antistatic composite binding agent, melting, filtering, collecting refractory fibers, and obtaining the felt. The method has a simple preparation technology and easily controlled parameters; through pressurization heat shaping, the refractory fibers obtain a compacting structure in a short time, crystalline grains are not easy to produce secondary growth; through the addition of the antistatic composite binding agent, the content of the free aldehyde in the prepared refractory fiber felt is low, and the refractory fiber felt has an antistatic effect; therefore, the prepared antistatic refractory fiber felt is more environment-friendly, the application field is expanded, and the enterprise benefit is increased.

Description

technical field [0001] The invention relates to the technical field of refractory fibers, in particular to a method for preparing a green and environment-friendly antistatic refractory fiber felt. Background technique [0002] Refractory fiber is soft and elastic, and it is also an ideal sealing material. Due to its insulation, oxidation resistance, oil resistance and water resistance, and convenient construction, it is widely used in metallurgy, building materials, petroleum, chemical industry, shipbuilding, electric power, aerospace and other fields. Refractory fiber felt refers to a heat-insulating refractory fiber product that uses refractory fiber as a raw material, adds a binder, and is formed under pressure. Lining, thermal insulation of heat pipes, high-rise building insulation, sound-absorbing, fire prevention and other raw materials for deep-processed products in industries. At present, the research of refractory fiber felt mainly focuses on its antibacterial and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/46D04H1/4209C04B35/10C04B35/622D06C7/02
CPCC04B35/62236C04B2235/3206C04B2235/3225C04B2235/3232D04H1/4209D04H1/46D06C7/02
Inventor 徐华
Owner 长兴华悦耐火材料厂