Australian Paper公司近日宣布，其母公司日本制纸集团（Nippon Paper）已经批准该公司在其位于澳大利亚维多利亚州Latrobe山谷的Maryvale工厂投资9000万美元建立废纸回收工厂。新建立的工厂每年将可生产5万t优质废纸浆，每年可为澳大...Australian Paper公司近日宣布，其母公司日本制纸集团（Nippon Paper）已经批准该公司在其位于澳大利亚维多利亚州Latrobe山谷的Maryvale工厂投资9000万美元建立废纸回收工厂。新建立的工厂每年将可生产5万t优质废纸浆，每年可为澳大利亚从填埋废纸中回收最高约8万t废纸，相当于超过160亿张A4纸。展开更多
Coal washing plants are usually fed from various sources. Coals include different combinations which should be considered for increasing the plant proficiency. Thus different methods have been used to enrich various c...Coal washing plants are usually fed from various sources. Coals include different combinations which should be considered for increasing the plant proficiency. Thus different methods have been used to enrich various coal types. In this study, Alborz-Sharghi coal washing plant was investigated which is fed from five coalmines. The optimum recovery was achieved for all coal types individually through experimental design. The controllable operation parameters in the experiments were collector dosage,frother dosage, solid percent content and particle size. The other parameters such as impeller speed,pH, conditioning time and flotation time were kept constant for all experiments. The optimum combination of coals was also specified. The results show that the optimum recovery for coal blends is 91.2%which shows much improvement relative to the plant conditions.展开更多
文摘Coal washing plants are usually fed from various sources. Coals include different combinations which should be considered for increasing the plant proficiency. Thus different methods have been used to enrich various coal types. In this study, Alborz-Sharghi coal washing plant was investigated which is fed from five coalmines. The optimum recovery was achieved for all coal types individually through experimental design. The controllable operation parameters in the experiments were collector dosage,frother dosage, solid percent content and particle size. The other parameters such as impeller speed,pH, conditioning time and flotation time were kept constant for all experiments. The optimum combination of coals was also specified. The results show that the optimum recovery for coal blends is 91.2%which shows much improvement relative to the plant conditions.
