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Recycling method for broken autoclaved fly ash bricks

A technology of fly ash and autoclaved bricks, which is applied in the field of damaged and reused fly ash autoclaved bricks. The effects of transportation costs, saving transportation costs, and reducing production and transportation costs

Active Publication Date: 2015-03-25
太原钢铁(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These damaged fly ash autoclaved bricks were stacked randomly nearby, covering a large area, and finally destroyed by manual collection, loading, transportation, dumping, and covering
It not only pollutes the environment, but also occupies the land. The transportation cost of damaged waste bricks is high, and the product market competitiveness is poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] 1. Collection of scattered and damaged fly ash autoclaved bricks

[0017] After the fly ash autoclaved bricks leave the kettle through the ferry car, the steaming car is separated, and the car is loaded on the car one by one. During the loading of finished products, defective, cracked and damaged fly ash autoclaved bricks are separated one by one and gathered together to form a large pile in the raw material storage area, and a waste brick raw material storage point is set up.

[0018] 2. Broken processing of damaged fly ash autoclaved bricks

[0019] First start the jaw crusher, the loader shovels materials at the waste brick raw material storage point, each shovel weighs about 1.2 tons, and evenly unloads them into the hopper of the jaw crusher, adjust the gap between the jaw crusher jaws, and crush them into particles smaller than 8mm , into the special fly ash autoclaved damaged brick storage bin through the bucket elevator.

[0020] 3. Accurate measurement and fi...

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PUM

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Abstract

The invention provides a recycling method for broken autoclaved fly ash bricks and belongs to the solid waste comprehensive utilization field. The method comprises technical links of crushing, preparation of materials, fine grinding, mixing of dried materials, mixing with addition of water, and compression-molding. The method is characterized in that, in the crushing link, broken autoclaved fly ash bricks are crushed into particles with a particle size of less than 8 mm; in the preparation of materials link, the following materials are prepared, by weight, 45% of fly ash, 20% of broken stones, 12% of quicklime, 20% of coarse slags, and 3% of broken autoclaved fly ash bricks with a particle size of less than 8 mm. The effects of the method are proved by experiments of Taiyuan Iron & Steel (Group) Co., Ltd., the method not only reduces loss, caused by fluctuation of raw materials, of enterprises, but also can lower the cost of production and transportation, and creates considerable economic benefits.

Description

[0001] technology field. [0002] The invention belongs to the field of comprehensive utilization of solid waste, in particular to a method for recovering and reusing damaged fly ash autoclaved bricks. Background technique [0003] Fly ash, quicklime, crushed stone, coarse slag and other materials are measured separately, weighted by a certain proportion, enter the mixer, first undergo dry mixing, and then add appropriate amount of water, and then perform wet mixing and mixing. Put it into the digestion bin through the belt conveyor material conveying system, and digest for about 90 minutes. Then the wheel mill is crushed, and the mixture is then distributed, pressed, formed, bricked, stacked, and finally marshaled into an autoclave for high-temperature and high-pressure steaming. The qualified rate of finished fly ash autoclaved bricks is usually about 95%. . [0004] In each link of production (in the forming process, marshalling process, steam curing process, and loading ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B30/00C04B18/16C04B18/30
CPCY02W30/91
Inventor 胡荣建王建瑞龚运林
Owner 太原钢铁(集团)有限公司
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