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Method for preparing aerated bricks

A technology of aerated bricks and ore pulp, applied in chemical instruments and methods, wet separation, manufacturing tools, etc., can solve problems such as polluting groundwater, affecting the life of iron oxide, environmental pollution, etc., and achieve the effect of increasing the service life

Inactive Publication Date: 2011-01-26
SHANDONG JIUQU SHENGJI NEW BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the tailings sand produced in my country's gold industry is placed in the open air, which occupies land for a long time, pollutes groundwater, and pollutes the environment very seriously.
[0003] At present, some enterprises use gold tailings sand to make bricks. Although the environmental pollution problem of tailings sand has been solved, the tailings are not treated. These tailings contain iron, sulfur, mercury and other substances that are harmful to the body. Sulfur dissolves in Water produces sulfuric acid, iron dissolves in water for a long time, and the formation of iron oxide affects the life of bricks, which also causes damage to the environment

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0015] 1) Gold tailings processing: First, add water to the gold tailings and grind them in a ball mill to form a slurry with a particle size of more than 200 mesh. Gold tailings fine sand accounts for 70% of the slurry, and then extract the iron concentrate through a magnetic separator , put forward the ore pulp of iron concentrate and then extract sulfur concentrate through flotation machine, and obtain tailings after concentration and dehydration;

[0016] 2) Preparation of raw materials for aerated bricks: Mix and stir the tailings sand with lime, cement, water, and aluminum powder in proportions of 48%, 14%, 3%, 34.95%, and 0.05% by weight to obtain Aerated brick standard slurry;

[0017] 3), pouring the embryo body: pouring the prepared slurry into the brick mold to obtain the brick embryo body;

[0018] 4) Steaming the embryo body: put the embryo body in the steaming room for steaming, when the temperature of the steaming room is 50°C-60°C, the steaming time is 3-4 hou...

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PUM

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Abstract

The invention discloses a method for preparing aerated bricks. The method is characterized by comprising the following steps of: processing gold tailings, preparing the raw materials of the aerated bricks, pouring, steaming and cutting blanks, steaming at a high temperature, forming products and the like. The method is environmentally-friendly, prolongs the service life of the bricks, and is particularly suitable for the comprehensive utilization of the gold tailings.

Description

Technical field: [0001] The invention relates to a method for preparing bricks, in particular to a method for preparing aerated bricks. Background technique: [0002] Most of the tailings sand produced by my country's gold industry is placed in the open air, which takes up land for a long time, pollutes groundwater, and pollutes the environment very seriously. [0003] At present, some enterprises use gold tailings sand to make bricks. Although the environmental pollution problem of tailings sand has been solved, the tailings are not treated. These tailings contain iron, sulfur, mercury and other substances that are harmful to the body. Sulfur dissolves in Water produces sulfuric acid, iron dissolves in water for a long time, and the formation of iron oxide affects the life of bricks, which also causes damage to the environment. Invention content: [0004] The object of the present invention is to provide a method for preparing an aerated brick that does not pollute the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/00B28C1/02B28C1/08B03B7/00B03B1/00B28B11/24
Inventor 王德进
Owner SHANDONG JIUQU SHENGJI NEW BUILDING MATERIALS