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由于黑鉄皮供应困难,我們地質勘探部门的通风筒一般以28#白鉄皮代替。这种鉄皮加工成带凸緣的风筒时其凸緣部份容易变形,因而我們加工成为插接式的风筒。这种风简在初用时漏风特別严重,但經过几年来的不断改进与积累經驗,克服了缺点,提高了工作面的有效风量,在将近千公尺的独头巷道掘进中,其通风时間一直保持在20分钟以內。现将其点滴經驗介紹如下: (一) 合理安装扇风机 (1) 在同一串联风路上,都安同一规格的10馬力轴流式扇风机,或佳木斯5.5KW的軸流式扇风机,避免各扇风机因风量不同而产生有的扇风机的风量大通不过小风量的扇风机,与有的扇风机的风量小不够供应大风量的扇风机,而出现循环风流的现象。 (2) 各扇风机的距离都尽量按图所示的关系安装,並侭可能靠近工作面。
Because of the supply of black skins, the ventilators in our geological prospecting department are generally replaced by # 28 white skins. When this bark is processed into a flanged air tube, the flange portion is easily deformed, so that we process it into a plug-in air tube. This type of Feng Jane was particularly serious when it was first used. However, after several years of continuous improvement and accumulation experience, it overcomes the shortcomings and improves the effective air volume at the working face. During ventilation of a single-lane tunnel near a thousand meters, Has been maintained within 20 minutes. The following bit of experience is introduced as follows: (a) a reasonable installation fan (1) in the same series of air, are the same size 10 hp axial fan, or Jiamusi 5.5kw axial fan, to avoid Fan fan due to different air volume fan fan and some have a small but small amount of air fan fan, and some small fan fan wind volume is not enough to supply large fan fan, and the phenomenon of circulation Merry. (2) The fan fan distance as far as possible as shown in the relationship between the installation, and 侭 may be close to the face.