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Method for producing wall material by utilizing waste slag

A wall material and waste residue technology, applied in the field of production of new wall materials, can solve the problems of poor utilization of river bed silt, serious environmental pollution, etc., and achieve the effects of reducing environmental pressure, high strength, and reduced manufacturing costs

Active Publication Date: 2015-12-09
CHONGQING JUXIN MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the riverbed silt cleaned up from riverbeds, lakes, etc. has not been well utilized, causing serious environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for producing a new type of wall material by utilizing waste slag, which is completed according to the following steps:

[0024] (1) After primary crushing and fine crushing of the lead-zinc tailings in a crusher into powders with a particle size of about 200 meshes, 5% by weight of combustible garbage is added thereto.

[0025] (2) Adding 30% quicklime, 1% ferric oxide and 15% silicon dioxide by weight to the mixture of waste slag and combustible garbage, and placing the above mixture in a kiln at ±1350°C calcining to a molten state, and then cooling to obtain the first material;

[0026] At the same time, the bauxite with a content of aluminum oxide greater than 60% is placed in a sintering machine to be calcined at 1350-1500° C. to form sintered agglomerates, and cooled to obtain the second material. The ratio of the total weight of waste slag, combustible garbage, limestone, ferric oxide and silicon dioxide before sintering to the total weight of bauxite b...

Embodiment 2

[0030] A method for producing a new type of wall material by utilizing waste slag, which is completed according to the following steps:

[0031] (1) After the construction waste slag is firstly broken and finely broken into a powder with a particle size of about 200 mesh in the crusher, 10% by weight of combustible garbage is added thereto.

[0032] (2), in the mixture of above-mentioned waste slag and combustible garbage, add the quicklime that is 40% by weight, the ferric oxide of 2%, the silicon dioxide of 20%, put above-mentioned mixture in kiln at 1300-1400 ℃ calcined to a molten state, and then cooled to obtain the first material;

[0033] At the same time, the bauxite with a content of aluminum oxide greater than 60% is placed in a sintering machine to be calcined at 1350-1500° C. to form sintered agglomerates, and cooled to obtain the second material. The ratio of the total weight of waste slag, combustible garbage, limestone, ferric oxide and silicon dioxide before s...

Embodiment 3

[0037] A method for producing a new type of wall material by utilizing waste slag, which is completed according to the following steps:

[0038] (1), the river silt with moisture content < 1% is firstly broken in the crusher, and after being finely broken into powders with a particle size of about 200 meshes, then add 8% combustible garbage to it by weight.

[0039] (2), in the mixture of above-mentioned waste slag and combustible garbage, add the quicklime that is 70% by weight, the ferric oxide of 3%, the silicon dioxide of 30%, put above-mentioned mixture in kiln at 1300-1400 ℃ calcined to a molten state, and then cooled to obtain the first material;

[0040] At the same time, the bauxite with a content of aluminum oxide greater than 60% is placed in a sintering machine to be calcined at 1350-1500° C. to form sintered agglomerates, and cooled to obtain the second material. The ratio of the total weight of waste slag, combustible garbage, limestone, ferric oxide and silicon...

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Abstract

The invention discloses a method for producing a novel wall material by utilizing waste residues. The method is completed according to the following steps: (1) after the waste residues are initially crushed and finely crushed into a powder in a crusher, adding combustible garbage with the weight percentage of 5%-10% into the powder; (2) adding quicklime, ferric oxide and silicon dioxide into the mixture of the waste residues and the combustible garbage, then placing the mixture in a kiln, calcining to a molten state, and cooling to obtain a first material; and placing bauxite in a sintering machine, calcining into sintered agglomerates, and then cooling to obtain a second material; and (3) mixing the first material and the second material, grinding with a ball mill, then entering a homogenizing bin, and homogenizing to obtain the product. Various waste residues are utilized to be mixed with the garbage to produce the novel wall material, so that the method has the advantages of energy saving and emission reduction, reduces the environmental pressure, and reduces the cost. The produced novel wall material has the characteristics of light weight, sound insulation, heat preservation, heat insulation, shock proof, bending resistance, crack resistance, and high strength.

Description

technical field [0001] The invention relates to a method for producing a new type of wall material by using waste slag. Background technique [0002] Entering the 21st century, green and environmental protection have become the theme of the world. With the rapid development of my country's national economic construction, energy conservation, emission reduction, low-carbon and circular economy have become my country's major policies. The building materials industry is the industry with the largest amount of slag, shouldering the heavy burden of circular economy. At present, the pouring of building walls is made of concrete, which is made of cement, sand and water, which cannot achieve the effect of energy saving and emission reduction. [0003] At the same time, with the development of the construction industry, construction waste residues continue to accumulate. With the development of minerals, various tailings (lead-zinc tailings, low-grade zinc oxide ore) and various sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/30
CPCY02W30/91
Inventor 马朝阳马榆凡
Owner CHONGQING JUXIN MINING