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随着综合机械化采煤的发展,工作面煤尘日趋增加。这对煤矿安全生产、矿工身体健康和采煤机生产能力的发挥都带来了严重的影响。1981年部曾组织对全国39个综采工作面进行安全调查,从《综采工作面安全问题调查报告》来看,所有工作面的粉尘浓度都大大超过了《煤矿安全规程》所规定的标准。为了有效地防治粉尘,《煤矿安全规程》强调指出“使用的采煤机都应安装有效的内、外喷雾装置,无喷雾或喷水装置的采煤机不得工作。”目前喷雾洒水应用虽广,但灭尘效果不显著,这一方面与喷嘴本身的基本性能有关,同时也由于对降尘喷嘴的选择与应用不当而影响了灭尘效果的发挥。上海所近几年来研究成功并已经通过鉴
With the development of mechanized coal mining, coal dust on the working face is increasing. This has a serious impact on coal mine safety production, the health of miners and the production capacity of shearer. In 1981, the Ministry of Science and Technology conducted a survey on the safety of 39 fully mechanized coal mining face in China. According to the Survey Report on Safety of Fully Mechanized Face, the dust concentration of all working faces has greatly exceeded the standard stipulated in “Coal Mine Safety Regulations” . In order to effectively control the dust, “Coal Mine Safety Regulations” stressed that “the shearer used should be equipped with effective internal and external spray device, no spray or water-spraying device Shearer shall not work.” Although the current spray water sprinkler application is wide , But the dust effect is not significant, on the one hand with the basic performance of the nozzle itself, but also due to improper selection and application of dust nozzle and affect the dust effect. Shanghai has been successfully studied in recent years and has passed the test