DOI: 10.11799/ce201602020
Research on characteristics of dust production and prevention technology in cutting coal
ZOU Chang-fu
Abstract：Based on the production status and dust control survey of K8203 fully mechanized caving face in Jinyang Group No. 3 coal mine, the paper analyzed the distribution law of wind speed on the sidewalk near the coal cutter, studied the characteristics of coal dust produced by coal cutter and the law of dust migration in coal cutting under favorable wind and against the wind, determined the key areas and control methods for dust prevention and control in fully mechanized caving face, optimized the system of dusk source tracking and high-pressure spray outside of coal mining machine, formed a 3D dust control and suppression system. After the optimization, total dust and the respirable dust removal efficiency were above 90% at the machine operator and 10m behind the coal cutter tail, the dust suppression effect was obvious, and the dust problem in caving working face was solved.
Keywords：coal cuttingcharacteristic of dust productionhigh-pressure spraywind speed distributiondust source trackingdust-containing stream
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 62-64 )