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Method for preparing laying material from ore tailing rich in sulfur

A sulfur-rich and tailings technology, applied in clay preparation equipment, chemical instruments and methods, manufacturing tools, etc., can solve environmental pollution and other problems, and achieve the effect of improving the ecological environment

Inactive Publication Date: 2006-12-06
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this is not applicable to sulfur-rich tailings, because sintering will directly discharge a large amount of sulfur dioxide into the atmosphere, resulting in more serious environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. The blast furnace slag from Shaoguan Steelworks, whose basic coefficient, activity coefficient and prime number coefficient all meet the national Class I quality, is crushed in advance to a particle size of less than 200 mesh (74 microns).

[0027] 2. Take 1.3kg of the above-mentioned pulverized blast furnace slag, and 7.6kg of lead-zinc tailings sand from Fankou, Qujiang, Shaoguan City, Guangdong Province, and use 0.4kg of red mud and 0.5kg of weathered clay produced by the sintering method of Zhengzhou Aluminum Plant as auxiliary agent, 0.1kg of phosphogypsum with a particle size of less than 45 microns is used as the activator, and 0.03kg of sodium lignosulfonate is used as the dispersant. First dissolve the dispersant in 1.2kg of water to be added, mix the dry powder and water together with a horizontal coulter mixer or a high-kneading mixer, mix well, pour it into the mold, and use a hydraulic brick machine to adjust the pressure to 20.0 Mpa, pressurized into br...

Embodiment 2

[0030] 1. The blast furnace slag from Shaoguan Steelworks, whose basic coefficient, activity coefficient and prime number coefficient all meet the national Class I quality, is crushed in advance to a particle size of less than 200 mesh (74 microns).

[0031] 2. Take 1.2kg of the above-mentioned pulverized blast furnace slag, 7.7kg of lead-zinc tailings sand from Fankou, Qujiang, Shaoguan City, Guangdong Province, 0.5kg of red mud and 0.4kg of weathered clay produced by the sintering method of Zhengzhou Aluminum Plant as auxiliary agents 0.1kg of phosphogypsum with a particle size of less than 45 microns is used as an exciter, and 0.03kg of sodium lignosulfonate is used as a dispersant. First dissolve the dispersant in 1.2kg of water to be added, mix the dry powder and water together with a horizontal coulter mixer or a high-kneading mixer, mix well, pour it into the mold, and use a hydraulic brick machine to adjust the pressure to 20.0 Mpa, pressurized into bricks with a size ...

Embodiment 3

[0034] 1. The blast furnace slag from Shaoguan Steelworks, whose basic coefficient, activity coefficient and prime number coefficient all meet the national Class I quality, is crushed in advance to a particle size of less than 200 mesh (74 microns).

[0035] 2. Take 1.1kg of the above-mentioned pulverized blast furnace slag, 7.8kg of lead-zinc tailings sand from Fankou, Qujiang, Shaoguan City, Guangdong Province, and 0.9kg of red mud produced by the sintering method of Zhengzhou Aluminum Plant as auxiliary agents, with a particle size of less than 45 0.09kg of micron phosphogypsum is used as an exciter, and 0.04kg of sodium hexametaphosphate is used as a dispersant. First dissolve the dispersant in 1.2kg of water to be added, mix the dry powder and water together with a horizontal coulter mixer or a high-kneading mixer, mix well, pour it into the mold, and use a hydraulic brick machine to adjust the pressure to 20.0 Mpa, pressurized into bricks with a size of 240×115×53mm. Pl...

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Abstract

A method for using the S-enriched ore tailings to preparing the masonry material from S-enriched ore tailings sand slags of blast furnace, additive, trigger and disperser through dissolving disperser in water, proportionally adding others, stirring, and die pressing.

Description

[Affiliated technical field] [0001] The invention relates to an effective method for comprehensive utilization of sulfur-rich tailing sand, which belongs to the fields of environmental engineering and new building materials. [Background technique] [0002] Tailings are the discarded parts of ore after crushing, grinding and sorting. According to statistics, my country's current tailings storage capacity has reached 700 million cubic meters, and it is increasing at a rate of 7 to 8 million tons per year, occupying nearly 1,000 acres of land every year, and spending about 600 million yuan in processing costs. And with the continuous excavation of mines, the grade of mined ore is getting lower and lower, and the amount of tailings and corresponding investment will increase year by year. [0003] The tailings contain a variety of gangue minerals and useful elements, which are characterized by large quantities, concentration and fine particles. It is easy to lose when it encoun...

Claims

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Application Information

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IPC IPC(8): B28B1/54B28B3/00B28C7/04
CPCC04B28/08Y02W30/91
Inventor 王德强冯璜王辅亚张惠芬
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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