Compound dust suppression agent for coal mine and preparation method of compound dust suppression agent

A dust suppressant and coal mine technology, applied in mining equipment, dust prevention, earth square drilling, etc., can solve the problems of unable to meet the dust concentration standard, low removal rate of respirable dust, etc., and achieve the effect of simple construction and wide range of raw materials

Inactive Publication Date: 2012-05-23
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For more than half a century, with the continuous efforts of many researchers in the world, chemical dust suppressants have achieved great success in the dust control of the coal industry. Many formulas and patents have been studied, and they have played an

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh 0.08g of polyacrylamide and dissolve it in 200ml of distilled water, place it in a water bath at a temperature of 50°C, heat and stir until the solution becomes colorless and transparent, then slowly add 0.8g of JFC dropwise under stirring, and continue to stir. Composite dust suppressant for coal mine can be obtained.

Embodiment 2

[0019] Weigh 0.04g polyacrylamide and dissolve it in 200ml distilled water, place it in a water bath at 50°C, heat and stir until the solution becomes colorless and transparent, add 0.4g SDBS, then slowly add 0.4g dropwise under stirring JFC and 0.12g PAC, continue to stir to prepare the composite dust suppressant for coal mine.

Embodiment 3

[0021] Weigh 0.06g of polyacrylamide and dissolve it in 200ml of distilled water, place it in a water bath at a temperature of 50°C, heat and stir until the solution becomes colorless and transparent, then slowly add 0.2g of JFC and 0.12g of PAC successively under stirring , and continue to stir to obtain a composite dust suppressant for coal mines.

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PUM

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Abstract

The invention discloses a compound dust suppression agent for a coal mine and a preparation method of the compound dust suppression agent. The compound dust suppression agent comprises the following components in percent by mass: 0.05-1.00 percent of fatty alcohol-polyoxyethylene ether (JFC), 0.05-1.00 percent of sodium dodecyl benzene sulfonate (SDBS), 0.01-0.50 percent of polyacrylamide (PAM), 0.02-0.50 percent of polymeric aluminium (PAC) and the balance of water. The compound dust suppression agent disclosed by the invention has the advantages that the components are water-soluble materials, can be directly sprayed by using the original water spraying system of the mine, have wide sources, do not generate any harmful gases, and are non-toxic and tasteless; and the compound dust suppression agent is convenient for construction, and has better dust suppression effect of respirable dust in comparison that of the prior art.

Description

technical field [0001] The invention belongs to the technical field of comprehensive dust prevention in the coal mining process, and relates to a composite dust suppressant for coal mines and a preparation method thereof, which is specifically composed of a wetting agent and a coagulating agent. Background technique [0002] Coal dust is one of the major disasters that have plagued coal mine safety production for a long time. With the improvement of coal mining mechanization, the use of high-efficiency and high-power roadheaders, conveyors and local ventilation equipment not only greatly increases the concentration of mine dust in the air in the roadway, but also increases the proportion of fine dust. In some working faces, the respirable dust content can even stand up to 62% to 70% of the total dust mass. The commonly used spray dust suppression technology generally has the disadvantages of poor effect of reducing respirable dust particles and large water consumption, and ...

Claims

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Application Information

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IPC IPC(8): E21F5/06
Inventor 杨静李改平高建广王琨
Owner SHANDONG UNIV OF SCI & TECH
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