選礦廠中廣泛使用的磨礦設備是球磨機和棒磨機,在球磨機中,目前隻有格子型及溢流型被采用。錐形球磨機因其生產率低,現已不製造,但是個別舊廠仍然沿用著。
格子型球磨機中zhong,襯chen板ban是shi球qiu磨mo機ji的de易yi損sun部bu件jian,它ta在zai工gong作zuo時shi受shou鋼gang球qiu及ji礦kuang料liao的de衝chong擊ji和he磨mo剝bo作zuo用yong,以yi及ji礦kuang漿jiang的de腐fu蝕shi,而er不bu斷duan損sun壞huai。使shi用yong壽shou命ming視shi礦kuang石shi種zhong類lei和he磨mo礦kuang方fang麵mian而er定ding,一yi般ban視shi為wei半ban年nian或huo一yi年nian左zuo右you。為wei了le提ti高gao襯chen板ban的de使shi用yong期qi限xian,國guo內nei外wai進jin行xing了le多duo方fang麵mian的de研yan究jiu。目mu前qian國guo內nei外wai注zhu意yi研yan究jiu橡xiang膠jiao襯chen板ban的de佩pei服fu。襯chen板ban的de結jie構gou參can數shu和he磨mo機ji操cao作zuo對dui襯chen板ban使shi用yong壽shou命ming的de影ying響xiang。試shi製zhi的de結jie果guo表biao明ming,壽shou命ming可ke達da鋼gang襯chen板ban的de3-4倍bei。且qie具ju有you工gong作zuo噪zao音yin先xian,重zhong量liang減jian輕qing,易yi於yu更geng換huan的de等deng優you點dian,此ci外wai,還hai在zai試shi製zhi其qi他ta耐nai磨mo材cai料liao,並bing取qu得de了le進jin展zhan。格ge子zi型xing球qiu磨mo機ji濕shi低di水shui平ping排pai礦kuang,球qiu磨mo機ji內nei儲chu存cun的de礦kuang漿jiang少shao,以yi磨mo細xi說shuo我wo礦kuang粒li能neng夠gou及ji時shi排pai除chu。因yin此ci,比bi重zhong大da的de礦kuang物wu不bu至zhi於yu在zai球qiu磨mo機ji內nei集ji中zhong,過guo粉fen碎sui比bi溢流型球磨機的輕,磨礦速度可以較快。
格ge子zi型xing球qiu磨mo機ji內nei由you於yu儲chu存cun的de礦kuang漿jiang較jiao少shao,就jiu可ke以yi多duo裝zhuang球qiu,且qie因yin有you格ge柵zha攔lan阻zu,便bian於yu裝zhuang小xiao球qiu。鋼gang球qiu落luo下xia時shi,受shou礦kuang漿jiang阻zu力li使shi其qi打da擊ji效xiao果guo減jian弱ruo的de作zuo用yong也ye比bi較jiao輕qing,這zhe些xie原yuan因yin使shi它ta的de生sheng產chan率lv和he效xiao率lv比bi溢yi流liu型xing球qiu磨mo機ji磨mo的de高gao。溢yi流liu型xing球qiu磨mo機ji比bi格ge子zi型xing球qiu磨mo機ji相xiang比bi較jiao,生sheng產chan率lv小xiao10-25%,而格子型球磨所消耗的功率較溢流型約大10-20%。雖然格子型球磨機的功率消耗比較大,但因其生產率高,所以按:噸/千瓦時 計算的效率指標可能還教高。因為格子型球磨機比溢流型球磨機有這些優點,所以有的廠把溢流型改為格子型。
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