煤礦井下自動隔爆裝(zhuang)置工作原理介紹
煤(mei)礦井下自動隔爆(bao)(bao)裝置采用錨桿固(gu)定(ding)(ding)的方式固(gu)定(ding)(ding)在巷(xiang)道頂(ding)板上,當井下發(fa)生爆(bao)(bao)炸是形成空(kong)氣沖(chong)(chong)擊(ji)波(bo)(bo)和火(huo)焰(yan),這個(ge)階(jie)段沖(chong)(chong)擊(ji)波(bo)(bo)的傳(chuan)(chuan)播(bo)速度遠遠大于火(huo)焰(yan)的傳(chuan)(chuan)播(bo)速度。當沖(chong)(chong)擊(ji)波(bo)(bo)達到(dao)沖(chong)(chong)擊(ji)波(bo)(bo)接收板,機(ji)械脈沖(chong)(chong)通過推桿傳(chuan)(chuan)到(dao)鎖緊裝置并(bing)且15ms內引發(fa)滅(mie)火(huo)粉噴(pen)發(fa)。只(zhi)用120ms的時間在巷(xiang)道中(zhong)形成了濃(nong)度為(wei)110g/m3、長度超(chao)過30m的可靠(kao)滅(mie)火(huo)粉霧狀(zhuang)區(qu)(qu)域(yu)。并(bing)無盲區(qu)(qu)布滿整(zheng)個(ge)保護區(qu)(qu)域(yu),此霧狀(zhuang)區(qu)(qu)域(yu)阻(zu)礙并(bing)撲(pu)滅(mie)火(huo)焰(yan)鋒(feng)面,能迅速使(shi)爆(bao)(bao)炸在巷(xiang)道中(zhong)的傳(chuan)(chuan)播(bo)過程停止。
本設備可(ke)用于有瓦斯或(huo)煤塵爆(bao)炸危險的礦井(jing),主要隔絕(jue)或(huo)阻(zu)止(zhi)爆(bao)炸傳播,防止(zhi)二次爆(bao)炸造成(cheng)更(geng)大(da)傷害,有效可(ke)靠減少爆(bao)炸損(sun)失,降低(di)人員傷亡。
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