在换料和投料时应注意哪些安全问题?

2025-04-06 01:54:07
推荐回答(1个)
回答1:

(1)沼气池在密封的情况下,加水试压和进料的速度不能过快,特别是当液面淹过进料管口、出料口的挡板后,更要放慢速度,以免池内气体压力急剧增大或减小而损坏池体。沼气池出料时,也不要过快、过猛,以免产生较大负压,而破坏池体。在大量进料、出料时,要把输气导管拔掉,有活动盖的要打开活动盖(此时严禁有烟火接近沼气池),防止产生过大的正压或负压。用抽水机抽出料液或加水时,更应特别注意这一点。

(2)新建沼气池一旦投料后,就会发酵产气,如果需要继续加料,只能从进料口或活动盖口处加入,严禁人进入池内加料、搅拌和打捞杂物,以免发生窒息、中毒事故。

(3)严禁在进料和出料时使用沼气,以避免引起回火,造成爆炸或火灾等事故。

(4)向沼气池中投完料后,在放气试火时,严禁在沼气池顶部的导气管口直接点火,以避免引起沼气池回火爆炸,发生火灾,造成人员伤亡。

(5)沼气池被堵塞时,严禁人直接进到沼气池内清除堵塞物,可以在进、出料口处用长把钩子清除,或者将活动盖打开半天充分通气后,在池顶外面用长把钩子清除堵塞物。

(6)沼气池的进料口、出料口加装防护盖。防止人、畜掉入池内,造成伤亡事故。

(7)沼气窒息中毒的情况多发生在准备大出料时。因为二氧化碳比空气重,不易散发。在这种情况下,人一旦进入沼气池就极有可能发生窒息。长时间不用的沼气池被重新利用时也容易发生窒息事故。应注意充分通风,不要轻易进入沼气池中。

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