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Process for producing coal ash mixed bricks

A production process and technology of coal ash, which is applied in the field of production process of fly ash mixed bricks, can solve problems such as polluting the environment, unfavorable agricultural production, changing soil quality, etc., and achieve high load-bearing performance, good temperature and sound insulation effects, and long service life Effect

Inactive Publication Date: 2019-03-26
陈韶华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of polluting the environment and changing soil quality unfavorable to agricultural production described in the above prior art, the present invention provides a production process of fly ash mixed bricks that saves energy, utilizes waste and creates new value

Method used

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  • Process for producing coal ash mixed bricks

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Mix coal ash powder with cement and clay according to the weight ratio of coal ash powder:cement:clay=70:12:5.5, add water, mix and stir, and then inject it into an extrusion molding machine to make bricks. The temperature during extrusion molding is 33 degrees Celsius and the pressure is 15Mpa. . Then dry it in the air for 1-2 days at room temperature and in a dry natural environment to complete the finished product.

Embodiment 2

[0019] Mix coal ash powder with cement and clay according to the weight ratio of coal ash powder:cement:clay=75:14:11, add water, mix and stir, and then inject it into an extrusion molding machine to make bricks. The temperature during extrusion molding is 45 degrees Celsius and the pressure is 19Mpa. . Then dry it in the air for 1-2 days at room temperature and in a dry natural environment to complete the finished product.

Embodiment 3

[0021] Mix coal ash powder with cement and clay according to the weight ratio of coal ash powder: cement: clay = 79: 15: 20, add water, mix and stir, and then inject into the extrusion molding machine to make bricks. The temperature during extrusion molding is 50 degrees Celsius and the pressure is 20Mpa. . Then dry it in the air for 1-2 days at room temperature and in a dry natural environment to complete the finished product.

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Abstract

The invention discloses a process for producing coal ash mixed bricks. The process comprises the following steps: screening coal ash, grinding, adding water to stir and mix with cement and clay according to a weight ratio, wherein a ratio of the coal ash powder to the cement to the clay is (70-80):(10-15):(5-20); performing extrusion forming to obtain green bricks, and airing in a dry natural environment for 1-2 days, thereby obtaining the finished product. The process disclosed by the invention has the advantages that the produced coal ash mixed brick has the advantages of high strength, higher hardness than that of ordinary bricks, weathering resistance, acid and alkali erosion resistance, excellent thermal insulation and sound insulation effects, long service life and higher bearing performance than that of general bricks. Compared with the other mixed material bricks, the coal ash mixed brick disclosed by the invention is simple in production process, excellent in additive and lowin preparation cost, waste coal ash and other wastes can be well utilized, and the effects of saving energy, utilizing the wastes, creating novel values, protecting the environment and the like are achieved.

Description

technical field [0001] The invention relates to a production process of a fly ash mixed brick. Background technique [0002] China is a country that consumes the largest amount of coal in the world. There will be a large amount of coal ash waste in industrial production, thermal power generation, and civilian use of coal. The annual discharge of coal ash powder exceeds 200 million tons. After the fly ash is discarded, it is easy to cause pollution and occupy Land, changing soil quality does not use agricultural production, it will be the main component of blowing sand to increase the concentration of PM2.5, etc.; but using coal ash powder to make bricks can not only prevent the above environmental pollution, deterioration of land quality, PM2.5, etc. Harmful occurrence can also create objective economic value. [0003] At present, the majority of buildings in our country use red bricks mainly made of clay and other raw materials, and with the continuous increase in demand f...

Claims

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Application Information

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IPC IPC(8): C04B28/00
CPCC04B28/00C04B18/08C04B14/361
Inventor 陈韶华
Owner 陈韶华