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我矿学习外地先进经验,在生产和扩建工程中,先后制造和安装了5台φ650毫米水射流泵,并于1984年7月交付使用。经过半年的运转,表明用射流泵取代水环式真空泵在技术上是可行的,能够满足铅、锌、硫精矿脱水工艺的要求。经济上是可取的,可以节约电能,减少设备维护费用。水射流泵是以水作工质,借助高速水流从喷嘴喷出所产生的负压抽气。它的配套设备为6BA-8离心式水泵,装机容量30千瓦。试验表明,水射流泵的极限真空度达到700—710毫米汞柱,而水环式真空泵的极限真空度只有650—680毫米汞柱。水射流泵抽气量较小,工作真空度在400—500毫米汞柱时,其抽气量为SZ-4水环式真空泵的70—80％,工作真空度越高,其抽气量越接近。使用结果表
In mine, I learned advanced experience in the field. In the process of production and expansion, five φ650 mm water jet pumps were successively manufactured and installed and delivered in July 1984. After six months of operation, it is technically feasible to replace the water ring vacuum pump with a jet pump to meet the requirements of the dehydration process of lead, zinc and sulfur concentrates. Economically desirable, you can save energy and reduce equipment maintenance costs. Water jet pump is a working fluid with water, with high-speed water jet from the nozzle to produce negative pressure exhaust. Its ancillary equipment for 6BA-8 centrifugal pumps, installed capacity of 30 kilowatts. Tests have shown that the ultimate vacuum of water jet pumps can reach 700-710 mm Hg, whereas water ring vacuum pumps have an ultimate vacuum of only 650-680 mm Hg. Water jet pump pumping capacity is small, the working vacuum degree of 400-500 mm Hg, the pumping capacity of the SZ-4 water ring vacuum pump 70-80%, the higher the working vacuum, the closer the suction amount. Use result table