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Method for producing regenerated sand using mine junk

A technology of mine waste and regenerated sand, which is applied to the removal of solid waste, etc., and can solve problems such as land occupation, environmental impact, and impact on living and living environments

Inactive Publication Date: 2006-12-13
徐丞锡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of society, there is more and more demand for energy, mines are developed all over the place, useful materials such as ores are effectively used, and by-products brought about by mining, abandoned ores and other waste materials are abandoned. Acidic, long-term accumulation of abandoned waste has caused a relatively large impact on the environment, and at the same time occupied a large area of ​​land, affecting people's life and living environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1, a method for producing reclaimed sand from mine waste, is to sieve the mine waste according to the requirements of use, and add alkaline substances to the sieved mine waste to adjust the pH value of the waste to between 7-10. In the embodiment, the waste from iron ore mining is used, and the waste is sieved to obtain waste particles with a diameter of about 0.01 mm. The pH value of the original waste is 6, which is acidic, and lime is added to adjust the pH value to between 7-10. Can.

Embodiment 2

[0010] Example 2, a method for producing regenerated sand using mine waste, using coal mining waste, sieving the waste to obtain waste particles with a diameter of about 0.1 mm, and checking that the pH value of the original waste is 4, which is acidic, and adding sodium carbonate Adjust to a pH value between 7-10.

Embodiment 3

[0011] Example 3, a method for producing regenerated sand using mine waste, using waste from marble mining, sieving the waste to obtain waste particles with a diameter of about 1 mm, and checking that the pH value of the original waste is 6, which is acidic, adding silicon Sodium acid is adjusted to a pH value between 7-10.

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PUM

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Abstract

The invention discloses a method for producing reclaimed sand by using mine waste, comprising following steps: sifting mine waste according to requirement and adjusting pH to be between 7 to 10. The invention is characterized in that it solves pollution of mine waste and uses waste, the production method is simple and cost is low.

Description

1. Technical field [0001] The invention belongs to the technical field of waste regeneration and utilization, and in particular relates to a method for producing recycled sand by using mine waste. 2. Background technology [0002] With the development of society, there is more and more demand for energy, mines are developed all over the place, useful materials such as ores are effectively used, and by-products of mining, abandoned ores and other waste materials are abandoned. Acidic, long-term accumulation of abandoned waste has caused a relatively large impact on the environment, and at the same time invaded a large area of ​​land, affecting people's life and living environment. 3. Contents of the invention [0003] The purpose of the present invention is to improve the deficiencies of the existing technology and provide a method of producing reclaimed sand by using abandoned mine waste, solving the pollution of mine development waste to the environment, rationally utiliz...

Claims

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Application Information

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IPC IPC(8): B09B3/00
Inventor 徐丞锡
Owner 徐丞锡