皮带输煤巷中继站尘源特性及全自动气水雾化除尘系统研究

摘要

Considering the characteristics of excessively high dust concentration and complex dust source in the re-lay station of high-loading coal belt roadway, and taking the relay station of main incline shaft of Tongxin mine as the research object, the characteristics of dust producing strength, concentration variation, and particle size distri-bution were studied by adopting the combined method of field measurement and experimental analysis.An automat-ic air-water atomization dedusting system based on multi-sensor joint monitoring was designed and developed, and it was applied to the field.The results showed that the dust producing strength of relay station was up to as high as 3.344 ×105 mg/min, giving priority to with respiratory dust, so the pollution was serious.Both the mass concentra-tion of whole dust and respiratory dust were decreased by about 85%with the operation of automatic air-water atom-ization dedusting system, and the dedusting effect was obvious.The system has a good practical popularization.%考虑高负载皮带输煤巷中继站粉尘浓度过高且尘源复杂的特点，以同忻矿主斜井中继站为研究对象，采用现场实测和实验分析相结合的方法对粉尘产生强度、浓度变化、粒径分布等特性进行研究分析，设计研发了基于多种传感器联合监测的全自动气水雾化除尘系统，并应用于现场。结果表明：中继站内粉尘产生强度高达3．344×105 mg／min，且以呼吸性粉尘为主，污染严重；全自动气水雾化除尘系统的运行使得中继站内全尘和呼尘的质量浓度均下降85％左右，降尘效果明显，具有良好的实用推广性。