Preparation method of high-strength refractory brick

A refractory brick and high-strength technology, applied in the field of building materials preparation, can solve the problems of inability to meet the requirements of high-performance bricks, poor refractory and thermal insulation performance, high brittleness, etc., and achieve shortened sintering time, strong thermal insulation performance, and reduced brittleness. Effect

Inactive Publication Date: 2013-06-19
冯玉存
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bricks obtained by the preparation method described in the aforementioned patent application have low strength, high brittleness, and poor fire resistance and heat insulation performance, which cannot meet the requirements of some buildings for high-performance bricks

Method used

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  • Preparation method of high-strength refractory brick
  • Preparation method of high-strength refractory brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of the high-strength refractory brick of the present embodiment may further comprise the steps:

[0023] a, mixing and stirring: by weight, take 55 parts of shale, 20 parts of sandstone, 5 parts of coal gangue, 1.2 parts of micro-silica fume, 1 part of quicklime, 5 parts of calcium silicate, 2 parts of reinforcing fiber, and 5 parts of binder (wherein: 4.0 parts of phenolic resin, 1.0 part of modified asphalt), pulverize the raw materials of each component until the fineness is less than or equal to 0.25 mm, fully mix them with a mixer, then add 15 parts of water by weight and continue to stir for 20 minutes;

[0024] b, preparing adobe: import the mixture made in a into a brick making machine to extrude mud strips to make adobe;

[0025] c, drying: put the adobe made in b into a 70°C oven and bake for 6 hours;

[0026] d, sintering: put the adobe dried in c into a brick kiln for sintering, the sintering temperature is 950°C, the sintering time i...

Embodiment 2

[0029] The preparation method of the high-strength refractory brick of the present embodiment may further comprise the steps:

[0030] a, mixing and stirring: in step a, take 60 parts of shale, 15 parts of arsenic sandstone, 7.5 parts of coal gangue, 1.2 parts of silica fume, 1.2 parts of quicklime, 4 parts of calcium silicate, and 2.5 parts of reinforcing fiber in parts by weight , 4.5 parts of binder (among them: 3.6 parts of phenolic resin, 0.9 part of modified asphalt); grind the raw materials of each component until the fineness is less than or equal to 0.25mm, and then fully mix them evenly with a mixer, then add 15 parts of water by weight and continue stirring for 20 minute;

[0031] b, preparing adobe: import the mixture made in a into a brick making machine to extrude mud strips to make adobe;

[0032] c, drying: put the adobe made in b into a 70°C oven and bake for 6 hours;

[0033] d, sintering: put the adobe dried in c into a brick kiln for sintering, the sinter...

Embodiment 3

[0036] The preparation method of the high-strength refractory brick of the present embodiment may further comprise the steps:

[0037] a, mixing and stirring: 60 parts by weight of shale, 15 parts of sandstone, 10 parts of coal gangue, 1 part of microsilica, 1.2 parts of quicklime, 3 parts of calcium silicate, 3 parts of reinforcing fiber, and 4.8 parts of binder (wherein: 3.84 parts of phenolic resin, 0.66 parts of modified asphalt), pulverize the raw materials of each component until the fineness is less than or equal to 0.25 mm, fully mix them with a mixer, then add 20 parts of water by weight and continue to stir for 15 minutes;

[0038] b, preparing adobe: import the mixture made in a into a brick making machine to extrude mud strips to make adobe;

[0039] c, drying: put the adobe made in b into an oven at 80°C and bake for 5 hours;

[0040] d, sintering: put the adobe dried in c into a brick kiln for sintering, the sintering temperature is 1050°C, the sintering time is...

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Abstract

The invention discloses a preparation method of a high-strength refractory brick, comprising the steps of: mixing materials and agitating, preparing brick blanks, drying, sintering, and carrying out air-blast quenching and the like. Shale and soft sandstone are used for replacing traditional clay, so that damages to cultivated lands and vegetations cannot be caused, and the shale and the soft sandstone are sufficiently utilized to change waste into wealth; environment-friendly effect is achieved and the resource is saved; micro-silicon powder is added to enhance the microcosmic density beforewater is added to be agitated, and trace components including quick lime, enhanced fibers, binding agent and the like are added at the same time, so that the strength of brick blanks and finished bricks is greatly enhanced and the comprehensive mechanical property is greatly improved; suitable amount of calcium silicate is added to perform modification so that the obtained product has the advantages of high heat-resisting temperature (capable of reaching 1050 DEG C), strong heat-insulating performance, small volume weight, high specific strength and good durability; an air-blast quenching process is additionally arranged based on a traditional process, so that the inner stress for sintering the finished bricks is sufficiently eliminated, the brittleness is greatly reduced, and the breakage rate in the process of transporting or using is greatly reduced.

Description

technical field [0001] The invention relates to a method for preparing building materials, in particular to a method for preparing high-strength refractory bricks by using sandstone and shale. Background technique [0002] Clay bricks are produced by using the traditional clay solid brick production process, but the country has already restricted the production of clay bricks because of the large amount of soil mining that destroys the ecological environment. However, with the rapid development of urbanization, a large amount of brick materials for construction are needed. Therefore, the process of making bricks with raw materials such as silt, coal gangue, and iron tailings has emerged. The applicant used his long-term experience in the brick-making industry to continuously research and test, and developed a method for making bricks using shale and arsenic sandstone, and applied for patent protection with the application number 200910001771.1. The method mainly uses arseni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 冯玉存
Owner 冯玉存
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