CAJ | 학술논문

针对矿井岩巷综掘工作面产尘量大，常规降尘措施不理想，一般呼吸面罩无法有效降低工作面作业人员对粉尘吸收的问题，研制了正压呼吸器防尘系统，并在岩巷综掘工作面底抽巷进行了现场试验。试验结果表明：使用正压呼吸器防尘系统除尘效率达到了70．82％，不使用时除尘效率仅为42．01％，不仅有效降低了工作面的粉尘浓度，改善职工作业环境，而且保证了工作面作业人员对新鲜空气的需求，减少了粉尘对职工身体的危害。
침대광정암항종굴공작면산진량대，상규강진조시불이상，일반호흡면조무법유효강저공작면작업인원대분진흡수적문제，연제료정압호흡기방진계통，병재암항종굴공작면저추항진행료현장시험。시험결과표명：사용정압호흡기방진계통제진효솔체도료70．82％，불사용시제진효솔부위42．01％，불부유효강저료공작면적분진농도，개선직공작업배경，이차보증료공작면작업인원대신선공기적수구，감소료분진대직공신체적위해。
There exists some problems in the fully mechanized excavation face of rock roadway such as large amount of dust is produced, conventional dust reduction measures are not satisfactory , and general breathing masks can ’t effectively reduce operator’s absorption of dust et al .A positive pressure respirators system for dust prevention was developed, and on-site experiment in bottom drainage roadway was conducted .The results showed that,after using the positive pressure respirator system, the dust collection efficiency reaches 70.82%, while the dust removal effi-ciency is only 42.01%.It can not only effectively reduce the concentration of dust and improve the operating envi -ronment, but also can ensure the workers demand for fresh air and reduce the hazard of dust on human health .