Preparation method of electrolytic manganese slag autoclaved brick

A technology for electrolytic manganese slag and autoclaved bricks, which is applied in the fields of resource recycling and recycling and building materials, can solve the problems of less practical application of enterprises and society, large consumption of electrolytic manganese slag, and large product market capacity, and achieves good social and economic benefits. , the effect of promoting employment and strong market competitiveness

Inactive Publication Date: 2010-04-07
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wang Huaian once studied the method of using electrolytic manganese slag to produce full-price fertilizer ("Electro-manganese slag land treatment full-price substrate total control method"), but due to the limited market capacity and improper application, it is easy to cause soil compaction and other reasons. It is rarely applied in society and society, and it is difficult to popularize and apply
The use of electrolytic manganese slag to produce building materials has a large consumption of electrolytic manganese slag and a large product market capacity. And the method in sintered clay bricks, but the addition ratio is only about 3%, and the promotion is of little significance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) In the electrolytic manganese slag, based on 36% (weight) of electrolytic manganese slag, 4% lime is blended, and water at a temperature of 45°C is added at the same time, stirred in a forced mixer for 40 minutes, and then stacked in the open air 5 days;

[0030] (2) Add 26% river sand, 20% gravel, and 12% lime to the pretreated electrolytic manganese slag, add water and stir to mix evenly;

[0031] (3) Transport the mixture to the DHL1600 wheel mill for grinding for 1 minute, and then transport the wheel-milled mixture to the digestion bin for digestion for 6 hours.

[0032] (4). Add 2% cement to the digested mixture, then add water and stir thoroughly, and control the moisture content of the mixture at 16%.

[0033] (5). Transport the stirred mixture to the DY850 pressure forming machine. The mixture is pressed into bricks with a molding pressure of 18 MPa. After the bricks are stacked, they are rested for 6 hours in the resting room.

[0034] (6). Transfer the ...

Embodiment 2

[0037](1) In the electrolytic manganese slag, based on 45% (weight) electrolytic manganese slag, mix 6% lime, add water at a temperature of 60°C at the same time, stir in a forced mixer for 40 minutes, and then stack in the open air 5 days;

[0038] (2) In the pretreated electrolytic manganese slag, add 20% river sand, 19.5% gravel, 9% lime, add water and stir to mix evenly;

[0039] (3) Transport the mixture to the DHL1600 wheel mill for grinding for 1 minute, and then transport the wheel-milled mixture to the digestion bin for digestion for 6 hours.

[0040] (4). Add 0.5% cement to the digested mixture, then add water and stir evenly, and control the moisture content of the mixture at 14%.

[0041] (5). Transport the agitated mixture to the DY850 pressure forming machine. The mixture is pressed into bricks with a molding pressure of 20 MPa. After the bricks are stacked, they are rested in the resting room for 6 hours.

[0042] (6). Transfer the static-cured adobe to an aut...

Embodiment 3

[0045] (1) In the electrolytic manganese slag, based on 25% (weight) of electrolytic manganese slag, 5% lime is mixed, and water at a temperature of 40°C is added at the same time, stirred in a forced mixer for 45 minutes, and then stacked in the open air 3 days;

[0046] (2) Add 40% river sand, 18% gravel, and 11% lime to the pretreated electrolytic manganese slag, add water and stir to mix evenly;

[0047] (3) Transport the mixture to the DHL1600 wheel mill for grinding for 1 minute, and then transport the wheel-milled mixture to the digestion bin for digestion for 6 hours.

[0048] (4). Add 1% cement to the digested mixed material, then add water and stir evenly, and control the moisture content of the mixed material at 15%.

[0049] (5). Transport the stirred mixture to the DY850 pressure molding machine. The mixture is pressed into bricks with a molding pressure of 16.0 MPa. After the bricks are stacked, they are rested for 4 hours in the resting room.

[0050] (6). Tra...

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Abstract

The invention provides a preparation method of an electrolytic manganese slag autoclaved brick. The method comprises the following steps: after preprocessing the electrolytic manganese slag, adding river sand (or fly ash), broken stone and lime in proportion; and stirring, assimilating, rolling, molding, standing, autoclaving and curing, and the like to obtain the electrolytic manganese slag autoclaved brick. The product meets the corresponding index requirements of Autoclaved Sand-lime Brick (GB11945-1999) or Fly Ash Brick (JC239-2001) for a first quality product with the strength level of more than 15MPa. The method has simple technology, high product quality, low production cost and good social, economic and environmental benefits.

Description

technical field [0001] The invention provides a method for preparing electrolytic manganese slag autoclaved bricks, which belongs to the fields of resource recycling and utilization and building materials. Background technique [0002] As an important metallurgical and chemical raw material, electrolytic manganese has made great contributions to the rapid development of my country's economy. In recent years, my country's electrolytic manganese industry has developed rapidly, with an annual output of more than one million tons. my country has become the world's largest producer, consumer and exporter of electrolytic manganese. The electrolytic manganese industry is a typical "high investment, high consumption, high pollution" industry. While its rapid development has also caused many shocking ecological damage and environmental pollution problems, the pollution of electrolytic manganese slag is particularly prominent. [0003] Electrolytic manganese slag is the acid leaching...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B3/00B28B5/00B28B7/04B28B11/24C04B28/10C04B14/06C04B18/08
CPCY02W30/91
Inventor 段宁周长波彭晓成王璠潘涔轩但智刚朱春雷孟俊利杜兵
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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