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在净化井巷中的风流时,空气的含尘量一般虽不高,但往往超过国家规定的卫生标准,而且几乎全是微细的呼吸性粉尘。据湿式凿岩粉尘分散度的分析,粒径小于5微米的占95％以上,小于2微米的占50～70％。由于这些呼吸性粉尘是用普通方法难以捕捉和净化的,严重危害工人健康,因此,迫切需要研制一种高效能的除尘装置。现将我们研制的冷凝除尘扇风机的初步试验介绍于下。一、原理和构造当水通过喷雾器时,由于旋转和冲击等作用,形成雾状水粒,它们在喷射途中与悬浮于空气中的尘粒相遇,能捕捉一部分尘粒,一同降落下来。此时空气中含尘量的减
When purifying the airflow in the shaft, the dust content of the air is generally not high although it usually exceeds the hygiene standards prescribed by the state, and almost all the fine breathing dust. According to the analysis of the dispersion of wet rock dust, the particle size is less than 5 microns accounted for more than 95%, less than 2 microns accounted for 50 to 70%. Since these respirable dusts are difficult to capture and purify by ordinary methods and seriously endanger the health of workers, there is an urgent need to develop a high-performance dust removal device. Now we developed the initial test condenser fan dust fan introduced below. First, the principle and structure When the water through the sprayer, due to the role of rotation and impact, the formation of mist-like water particles, they spray in the air with the suspended particles in the dust, to capture part of the dust particles, with the fall. At this time the amount of dust in the air minus