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A method of making ceramsite with gold tailing sand

A technology of tailings and ceramsite, which is applied in the field of utilization of waste tailings for gold extraction from gold mines, can solve problems such as no patent publication or disclosure.

Inactive Publication Date: 2011-11-30
河北省地矿局第三地质大队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] There is no corresponding patent publication or publication

Method used

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  • A method of making ceramsite with gold tailing sand
  • A method of making ceramsite with gold tailing sand
  • A method of making ceramsite with gold tailing sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] 1. Ceramsite formula

[0060]

[0061] 2. Production process:

[0062] Accurately weigh various materials according to the formula, add them to the wheel mill in turn for mixing, and then use the disc ball forming machine to make mud balls with a diameter of 5-20mm. The prepared mud balls can be dried in the shade in a natural environment, or placed in a desiccator to be forced to dry quickly.

[0063] The dried ceramsite body is put into the rotary kiln and calcined at 800-1000°C. Then cooling and grading, you can get the required particle size and bulk density of 400kg / m 3 of ceramsite.

[0064] If the rotary kiln used is a two-stage type, with an independently operating drying and preheating section, the made clay balls can be directly filled into the kiln, so that drying, calcining and puffing are all completed in the kiln. Realize continuous production, reduce labor and reduce labor intensity of workers.

Embodiment 2

[0066] 1. Ceramsite formula

[0067]

[0068] 2. Production process:

[0069] Accurately weigh various materials according to the formula, add them to the wheel mill in turn for mixing, and then use the disc ball forming machine to make the mixed mud into a spherical green body with a diameter of 5-20mm. Dry the prepared ceramsite clay ball body in the shade in a natural environment, or put it in a dryer for forced rapid drying.

[0070] The dried ceramsite body is put into the rotary kiln and calcined at 900-1100°C. Then cooling and grading, you can get the required particle size and bulk density of 500kg / m 3 of ceramsite.

[0071] If the rotary kiln used is a two-stage type, with an independently operating drying and preheating section, the made clay balls can be directly filled into the kiln, so that drying, calcining and puffing are all completed in the kiln. Realize continuous production, reduce labor and reduce labor intensity of workers.

Embodiment 3

[0073] 1. Ceramsite formula

[0074]

[0075]

[0076] 2. Production process:

[0077] Accurately weigh various materials according to the formula, add them to the wheel mill in turn for mixing, and then use the disc ball machine to make the mixed mud into a spherical ceramsite body with a diameter of 5-20mm. Dry the prepared ceramsite clay ball body in the shade in a natural environment, or put it in a dryer for forced rapid drying.

[0078] The dried ceramsite green body is put into the rotary kiln, and calcined and puffed at 1000-1100°C. Then cooling and grading, you can get the required particle size and bulk density of 600kg / m 3 of ceramsite.

[0079] If the rotary kiln used is a two-stage type with an independently operating drying and preheating section, the prepared clay balls can be directly filled into the kiln, so that drying, calcining and puffing are all completed in the kiln, realizing continuous production and reducing Employ labor and reduce the labor...

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Abstract

The invention relates to a method for manufacturing haydite from tailings obtained after gold extraction. The haydite comprises the following specific chemical components: 60-65% of SiO2, 10-20% of Al2O3, 4-8% of Fe2O3 and FeO, 3-6% of K2O and Na2O and 3-5% of CaO and MgO, wherein the ignition loss is 3-5%. The method comprises the following specific steps: dewatering and concentrating the tailings obtained after gold extraction until the water content is 20-40%; then introducing 50-80 parts by dry weight of tailings, 20-50 parts by dry weight of clay (or mud) and 3-6 parts of pore-forming agent, and mulling evenly; and then processing the mixed mud to obtain cylindrical or spherical mud particles with a diameter of 5-20 mm, drying, calcining at 800-1200 DEG C, puffing, then cooling, and grading to obtain the haydite with the required size and bulk density.

Description

technical field [0001] The invention provides a method for utilizing waste tailings from gold extraction in gold mines, and belongs to the field of environmental protection management in mining areas. More specifically, it solves the environmental protection treatment of tailings formed by dressing, smelting and extracting gold ore with syenite as the gold deposit. technical background [0002] At present, with the development of mineral resources, more and more tailings are caused by mineral processing, the pollution of tailings to the environment is becoming more and more serious, and environmental protection problems are also increasing. The dam failure of tailings ponds will also cause serious disasters. Therefore, the treatment and comprehensive development of tailings and tailings are very necessary. [0003] In order to better explain the novelty of this patent, as well as its cross-field and cross-professional ingenuity, this patent will be explained from the two te...

Claims

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Application Information

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IPC IPC(8): C04B38/00C04B33/00C04B33/132
CPCY02P40/60
Inventor 何冬青魏明辉陈树清刘建国胡志强党建中王栋赵振深刘成维
Owner 河北省地矿局第三地质大队
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