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为有效地防止停泵后回流水锤作用对浆体输送系统管道和设备的破坏,由济南市中给水设备机械厂研制的KHH44X—2.5型矿浆微阻缓闭止回阀,于1993年5月21日在秦皇岛市通过专家的评审。矿浆微阻缓闭止回阀于1991年12月在首钢大石河选厂安装、调试以来,现场使用1.5年,经历开启、关闭37次,运行中缓闭装置启闭灵活可靠;1992年8月经历了一次全厂停电考
In order to effectively prevent the pump back to stop after the water hammer effect on the slurry pipeline system and equipment damage, from the water supply equipment in Jinan City Machinery Factory developed KHH44X-2.5 pulp slow-closing valve micro-blocking, in May 1993 On the 21st in Qinhuangdao City through the assessment of experts. Slurry micro-resistance slow closing check valve in December 1991 in Shougang Dashihe selection plant installation, commissioning, on-site use 1.5 years, experienced open, closed 37 times, the operation of the slow closing device opening and closing flexible and reliable; August 1992 Experienced a whole plant blackout test