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High-strength heat insulating refractory material preparation method

A refractory and high-strength technology is applied in the field of preparation of high-strength heat-insulating refractories, which can solve the problems of uneven distribution of pores of heat-insulating refractories, complex preparation processes, and high requirements for raw materials, saving preparation costs and simplifying the fabrication process. , The effect of uniform distribution of pores

Inactive Publication Date: 2016-12-07
吴迪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem mainly solved by the present invention is to provide a high-strength heat insulating A method for preparing a fireproof material. In this method, waste building porcelain and glass are pulverized and ball-milled into powder, and waste wood is made into wood pellets at the same time. Wood pellets, porcelain and glass powder, potassium carbonate, sodium carbonate, aluminum oxide, Sodium carbonate, potassium hydroxide and deionized water are ground and poured into the mold, dried and demoulded to obtain a dry billet after trapping, sintered the dried billet and cooled, and then the calcined material obtained by heat preservation and calcination is moved into an oil bath for reaction, and then Filtrate and collect the semi-cooled calcined material, put it into the ice-water mixture to cool it, and let it dry naturally to prepare a high-strength heat-insulating refractory material; the raw material of the invention is easy to obtain, and the heat-insulating refractory material is prepared from waste building materials , by filling the waste glass powder and forming a dense bond by high-temperature calcination, the strength of the refractory material is effectively improved. At the same time, the preparation process of this method is simple, and the prepared heat-insulating refractory material has uniform distribution of pores and high strength. It has a wide range of applications. application market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Firstly, waste architectural porcelain and glass were selected and crushed in a hydraulic crusher, and then the porcelain fragments and glass fragments were collected, and placed in a ball mill, respectively, and ball milled at 250r / min for 3 hours to collect ball milled porcelain. Tool powder and ball-milled glass powder; then collect waste wood, crush it, grind and sieve to prepare 120 mesh wood chips, and then weigh 10 parts of wood chips and 35 parts of ball-milled porcelain powder in parts by weight , 30 parts of ball-milled glass powder, 10 parts of potassium carbonate, 10 parts of sodium carbonate, 5 parts of aluminum oxide, 1 part of potassium hydroxide and 35 parts of deionized water were placed in a mortar, ground for 2 hours at room temperature, and poured to In the stainless steel mold, the material is trapped at room temperature for 20 hours; after the material is trapped, it is dried at 100°C for 6 hours, then the mold is removed and the dry billet is colle...

example 2

[0027] Firstly, waste building porcelain and glass were selected and crushed in a hydraulic crusher respectively, and then the pieces of porcelain and glass were collected and placed in a ball milling device, respectively, and ball milled at 275r / min for 4 hours to collect ball milled porcelain pieces. Tool powder and ball-milled glass powder; then collect waste wood, crush it, grind and sieve it to prepare 125 mesh wood chips, and then weigh 13 parts of wood chips and 38 parts of ball-milled porcelain powder in parts by weight , 33 parts of ball-milled glass powder, 13 parts of potassium carbonate, 13 parts of sodium carbonate, 8 parts of aluminum oxide, 1.5 parts of potassium hydroxide and 38 parts of deionized water were placed in a mortar, ground for 2.5 hours at room temperature, and poured Put the material into a stainless steel mold, and process the material at room temperature for 22 hours; after the material is trapped, dry it at 105°C for 7 hours, then remove the mold...

example 3

[0030]Firstly, waste architectural porcelain and glass were selected and crushed in a hydraulic crusher, and then the pieces of porcelain and glass were collected and placed in a ball milling device, and were ball milled at 300r / min for 5 hours to collect the ball-milled porcelain pieces. Tool powder and ball-milled glass powder; then collect waste wood, crush it, grind and sieve it to prepare 130 mesh wood chips, and then weigh 15 parts of wood chips and 40 parts of ball-milled porcelain powder in parts by weight , 35 parts of ball-milled glass powder, 15 parts of potassium carbonate, 15 parts of sodium carbonate, 10 parts of aluminum oxide, 2 parts of potassium hydroxide and 40 parts of deionized water were placed in a mortar, ground for 3 hours at room temperature, and poured to In the stainless steel mould, the material is trapped at room temperature for 24 hours; after the material is trapped, it is dried at 110°C for 8 hours, and then the mold is demoulded and the dry bil...

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Abstract

The invention discloses a high-strength heat insulating refractory material preparation method, and belongs to the technical field of heat insulating refractory material preparation. Waste building potteries and glass are crushed and ball-milled into powder, waste battens are prepared into wood pellets, the wood pellets, the potteries, the glass powder, potassium carbonate, sodium carbonate, aluminum oxide, sodium carbonate, potassium hydroxide and deionized water are grinded and poured into a mold, drying and demolding are performed after aging mixture to prepare dry blanks, the dry blanks are sintered and then cooled, calcined materials obtained by heat insulating calcination are shifted into an oil bath for reaction, half-cooled calcined materials are filtered, collected, shifted into ice-water mixed liquid, cooled and naturally aired, and a high-strength heat insulating refractory material can be prepared. Examples prove that raw materials are easily obtained, the preparation process is simple, and the prepared heat insulating refractory material is uniform in pore distribution and high in strength and has a wide application market.

Description

technical field [0001] The invention discloses a preparation method of a high-strength heat-insulating refractory material, which belongs to the technical field of heat-insulation refractory material preparation. Background technique [0002] Insulation refractory materials refer to refractory materials with high porosity, low bulk density and low thermal conductivity. Insulation refractory materials, also known as lightweight refractory materials, include heat insulation refractory products, refractory fibers and refractory fiber products. [0003] Insulating refractory materials are characterized by high porosity, generally 40% to 85%, low bulk density, and low thermal conductivity. It is usually used as a thermal insulation material for industrial kilns, which can reduce the heat loss of the kiln, save energy, and reduce the weight of thermal equipment. Insulation refractory materials have poor mechanical strength, wear resistance and slag erosion resistance, and are no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B38/06C04B35/622
CPCC04B35/66C04B35/62204C04B35/62209C04B38/0675C04B2235/3201C04B2235/3217C04B2235/96
Inventor 吴迪高玉刚薛蕾
Owner 吴迪
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