煤矿综采工作面综合防尘研究与应用

Research and application of dust prevention and control in fully mechanized working face

为解决粉尘对矿井安全生产和人员健康所带来的危害,开滦东欢坨矿根据粉尘产生的特点和原因,在2112工作面采取了系列综合防尘技术:在工作面安装加压泵,提高防尘供水压力;工作面风流净化水幕安装旋转雾化装置;各转载地点采用自动喷雾装置;对采煤机内外喷雾装置进行改造;工作面安装定向喷淋装置;支架安装架间喷淋装置。结果表明,采面工作面采取粉尘综合防尘技术后,达到了落煤时产尘点下风侧10~15 m处总粉尘降尘效率大于85%;支护时产尘点下风侧10~15 m处总粉尘降尘效率大于75%;回风巷距工作面10~15 m处的总粉尘降尘效率大于75%的行业标准。

In order to prevent dust harm to human body,comprehensive dust prevention method was adopted in 2112 working face in Donghuantuo Mine,with pressure pump to improve dust prevention and water supply pressure,with atomization device in water curtain,automatic atomization in corner,improvement of atomization inside and outside of mining machine,directional spraying device in working face.The result shows that dust fall rate is greater than 85% in dust point downwind 10~15 m,dust fall rate greater than 75% in support dust point downwind 10~15 m,greater than 75%from air return roadway to working face 10~15 m,meeting the needs of industrial standard.