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Brick making method

A technology of raw materials and mixtures, applied in clay products, other household appliances, household appliances, etc., can solve problems such as quality accidents, unstable quality, and excessive calcium oxide content

Active Publication Date: 2013-07-10
河南华新奥建材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional brick-making process has high coal consumption and high power consumption. The calcium oxide content of some bricks exceeds the standard, the quality is unstable, and major quality accidents are prone to occur. Moreover, the drying and moisture removal efficiency is very low in rainy days.

Method used

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  • Brick making method

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Embodiment Construction

[0025] Select brick-making raw materials coal gangue, slag, shale, fly ash and clay, and test the calorific value, plasticity and calcium oxide content of each raw material. Coal gangue, slag, shale, fly ash and clay form the raw material mixture, coal gangue, slag and shale form the aggregate, prepare an Excel table, adjust the proportion of raw materials, and make the raw material mixture meet the corresponding requirements. The calorific value of the raw material mixture is 280-320kcal / kg. When producing standard bricks, the aggregate ratio is ≥20%, the plasticity of the raw material mixture is 7%-12%, and the calcium oxide content of the raw material mixture is ≤5%. When producing porous bricks, The aggregate ratio is ≥50%, the plasticity of the raw material mixture is 9%-14%, the calcium oxide content of the raw material mixture is ≤4.5%, when producing hollow bricks, the aggregate ratio is ≥40%, and the plasticity of the raw material mixture is 11%-16%, The calcium oxide...

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Abstract

The invention relates to a brick making method, which uses raw materials of coal gangue, furnace clinker, shale, coal ash and clay and prepared according to the steps of (1) smashing and grinding the raw materials to be particles with the particle size below 2mm; (2) evenly mixing the particles of the raw materials, adding warm water to mix and make mud materials, and then conducting ageing treatment for more than 24 hours; (3) adopting a vacuum brick squeezing machine with the vacuum degree of -0.07MPa to -0.08MPa and molding moisture of 13.5%-14.5% to make the mud materials into green bricks, and adding a transducer on a main motor of the vacuum brick squeezing machine; (4) placing the green bricks into a drying hole to remove moisture and dry in a concentration mode; (5) adopting residual carbon of raw material gangue, furnace clinker and coal ash, and roasting by adopting a method of taking internal combustion as the principal thing and external combustion as the minor thing; and (6) cooling to obtain end products and detecting the content of calcium oxide. The brick making method is low in coal consumption and power consumption and stable in quality of made bricks.

Description

technical field [0001] The invention relates to a brick making method for building bricks. Background technique [0002] A large number of demolition and construction projects have led to an increasing demand for building bricks, and the current building bricks are almost all fired from clay, which requires a large amount of mining of cultivated land, resulting in a large amount of loss and waste of cultivated land resources. The discharge of industrial waste such as fly ash and coal gangue has increased rapidly. If not utilized, it will occupy a large amount of ash storage space and pollute the environment. In order to reduce the amount of clay used in the brick-making industry and accelerate the resource utilization of industrial waste such as fly ash and coal gangue, many brick-making enterprises have begun to use fly ash and coal gangue to produce sintered bricks. However, the traditional brick-making process has high coal consumption and high power consumption. The cal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/132
CPCY02P40/60
Inventor 陈年太
Owner 河南华新奥建材股份有限公司
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