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Refractory brick with high breaking strength and preparation method of refractory brick

A technology of refractory bricks and high flexural resistance is applied in the field of refractory materials, which can solve the problems of low flexural strength and low refractoriness, and achieve the effects of improving flexural strength, improving refractoriness and excellent comprehensive performance.

Inactive Publication Date: 2017-08-11
MAANSHAN BAOLONG NEW BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high flexural refractory brick and its preparation method to solve the problems of low flexural strength and low refractoriness of existing refractory bricks

Method used

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Embodiment Construction

[0016] A high-bending refractory brick made of the following raw materials (kg): 44 municipal sludge, 15 tannin gum, 27 blast furnace dust, 20 steel slag, 21 calcium silicate tailings, 11 sodium humate, and asbestos wool 17. Waste tempered glass 16, magnesium aluminum silicate 11, vermiculite tailings 24, waste aluminosilicate 25, waste concrete 24, gypsum whiskers 12, pyrophyllite 20.

[0017] A method for preparing high flexural refractory bricks, comprising the following steps:

[0018] (1) Mix blast furnace dust, steel slag, vermiculite tailings, waste aluminosilicate and pyrophyllite evenly, crush them, pass through a 70-mesh sieve, calcinate at 870°C for 1.5h, cool to room temperature, and dry ball mill at 550r / min for 35min , and then according to the solid-to-liquid ratio of 1:3, the ball-milled powder was added to a hydrochloric acid solution with a mass fraction of 35%, heated in a water bath to 80°C, soaked in heat for 3 hours, and filtered when naturally cooled to ...

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Abstract

The invention discloses a refractory brick with high breaking strength and a preparation method of the refractory brick. The refractory brick is prepared from raw materials in parts by weight as follows: 39-48 parts of municipal sludge, 12-18 parts of a tanning extract, 21-32 parts of blast furnace fly ash, 14-26 parts of steel slag, 16-27 parts of calcium silicate tailings, 7-14 parts of sodium humate, 15-20 parts of asbestos wool, 13-19 parts of waste tempered glass, 8-14 parts of magnesium aluminum silicate, 18-30 parts of vermiculite tailings, 22-29 parts of waste aluminum silicate, 21-27 parts of waste concrete, 10-15 parts of gypsum whiskers and 16-24 parts of pyrophyllite. The asbestos wool, the waste tempered glass, the gypsum whiskers and other materials which are fire-proof, corrosion-resistant, wear-resistant and high in strength are added to the refractory brick, the breaking strength of the refractory brick can be improved, the refractoriness, corrosion resistance and wear resistance of the refractory brick can be improved, and the service life of the refractory brick is greatly prolonged.

Description

technical field [0001] The invention relates to a high flexure-resistant refractory brick and a preparation method thereof, belonging to the field of refractory materials. Background technique [0002] All materials that can resist high temperature and the physical and chemical effects produced at high temperature are collectively called refractory materials. Refractory materials are widely used in various fields of national economy such as metallurgy, chemical industry, petroleum, machinery manufacturing, silicate, power, boiler, light industry, electric power, military industry, etc., and are essential materials to ensure the production operation and technological development of the above industries , plays an irreplaceable important role in the development of high temperature industrial production. Refractory materials are generally divided into two types, namely unshaped refractory materials and shaped refractory materials. Among them, shaped refractory materials gener...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/185C04B35/626
CPCC04B35/185C04B35/62605C04B35/62645C04B35/66C04B2235/3481C04B2235/349C04B2235/36C04B2235/522C04B2235/5276C04B2235/96
Inventor 晋元龙陈德全
Owner MAANSHAN BAOLONG NEW BUILDING MATERIALS
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