(一) 8/6E—AH型渣浆泵护套的修复大吉山钨矿选矿厂的尾砂主要靠3台8/6E—AH型渣浆泵输送。由于护套备件耗量大,价格高,每换一件(次),只能连续使用137个工班,每台每年要耗护套8件。而每件护套单价为5600元,每台每年需要护套备件费44800元,3台则需要护套备件费134400元。为了节约护套备件,降低生产成本,该厂综合工段提出修复旧护套再用的合理化建议。经研究和改进试验,将索道放矿斗换下来的旧弧形铁板割好,用 (A) Repair of 8 / 6E-AH slurry pump jacket The tailing of the Dajishan tungsten ore beneficiation plant is mainly transported by 3 8 / 6E-AH slurry pumps. Due to the large consumption of jacket spare parts, high prices, each change (time), only continuous use of 137 work shifts, each year to consume 8 sets of sheath. The price of each jacket is 5600 yuan, each need 44,800 yuan per year jacket parts costs, 3 sets of jacket parts costs 134,400 yuan. In order to save the jacket spare parts and reduce the production cost, the comprehensive section of the factory proposed the rationalization proposal of rehabilitating the old jacket. After researching and improving the test, the old curved iron plate replaced by the ropeway was cut and used