我們在搞快速送道和降低坑內粉尘至2毫克/公尺~3以下的工作中,对活动风筒进行了多次試驗,最后試驗成功。現在全矿区压入式通风工作面大部分都已推广,效果良好。現將具体做法介紹如下: 一、目的:为了保証工作面的有效通风,对于压入式、风筒离工作面应在6公尺以內,但恐爆破时打坏,故靠近工作面一段应当能够伸縮,并且需具备由远处送入风筒的設备,为此設計了如下图的裝置。二、动作原理:利用膠布风筒悬在铁絲上,在工作面安置滑輪,用繩子一端系住风筒末端,一端通 We engaged in fast delivery and reduce pit dust to 2 mg / m ~ 3 below the work of the activities of the hairdryer a number of tests, the final test was successful. Now the entire mine pressure ventilation face has been most of the promotion, the effect is good. The specific practices are introduced as follows: First, the purpose: In order to ensure the effective ventilation of the face, for the press-in, hair dryer from the face should be within 6 meters, but when the bomb explodes damage, it should be able to Telescopic, and the need to have the device into the hair dryer from afar, for which the design of the device as shown below. Second, the principle of action: the use of tape over the hair dryer wire, pulley placed in the face, with rope at one end tied to the end of the hair dryer, one end of the pass