礦井型選煤廠外文翻譯---重介質(zhì)旋流器-其他專業(yè)-資料下載頁
2025-01-19 03:03本頁面
【導(dǎo)讀】應(yīng)用在礦物加工行業(yè)中單元處理上。重介質(zhì)旋流器的應(yīng)用是從鉆石、鐵礦、鉻鐵礦相對(duì)較。高的密度到相對(duì)密度低于1時(shí)塑料的分離而變化的。器的工作仍然在繼續(xù)。長遠(yuǎn)發(fā)展的主要目的集中在提高旋流器的效率和處理量。流器的性能是有許多參數(shù)決定的，并且在這章里將討論其中一些因素的影響。在煤炭加工處理作業(yè)中，特別是在澳大利亞。更大的直徑也意味著更大的入料，更大的溢。流口和底流口，從而更大粒度物料給入旋流器。表1中定義了荷蘭國有能源化學(xué)公司生產(chǎn)。重介質(zhì)旋流器的標(biāo)準(zhǔn)尺寸和當(dāng)前產(chǎn)品趨勢。然而，我們卻需求有一個(gè)擁有更大容量、能夠處理更大物料、用。開采過程中混入更多的頂層以及底層頁巖以及更多低儲(chǔ)量煤的開采。包含了相當(dāng)大比例的高密度巖石。表2展示了南非瑪泰集團(tuán)的兩種實(shí)用旋流器的入料量以及最大入料尺寸。較粗材料的處理成為可能。這導(dǎo)致了一個(gè)全部有效的過程。在這些國家如印度和在美國易選煤中重介質(zhì)旋流器的廣泛應(yīng)用就是這的證據(jù)。
【正文】 ere traditionally used to process material between approximately 20mm and . The advent of largediameter cyclones now allows coarser material to be processed. However, the problems associated with pumping large particles still limit the upper size of material processed in densemedium cyclones to approximately 50 mm. Where sized products are needed, it is still customary to install a densemedium bath and to process only the small material via densemedium cyclones. On the lower end of the size scale, mm was always considered the practical limit for densemedium cyclones. However, there have been significant efforts to process coal finer than mm with densemedium cyclones. The plants built at Winterslag and Tertre in Belgium, Homer City and Marrowbone in the United States, Greenside in South Africa, and Curragh in Australia serve as proof. Unfortunately the results obtained from these plants were not always as good as expected. Recent advances in magic separators have prompted renewed interest in using the densemedium cyclone for fine coal processing. The efficiency of separation obtainable with densemedium cyclones is much better than that of wateronly units such as spirals and TBSs. For this reason， a new fine coal densemedium plant is under construction in South Africa. The change that enabled the successful use of largerdiameter cyclones and coarser media for fine particle densemedium separation was multistage treatment of fine coal, which resulted in an overall efficient process (de Korte 2021). By virtue of their high separation efficiency, densemedium cyclones are the method of choice for processing difficulttoprocess raw coals. They are also applied in cases where the price of the product dictates that the highest possible yield be obtained. The growing number of densemedium cyclone plants being used in countries such as India and the extensive use of cyclones in the United States with easy coals are proof of this.
教學(xué)課件相關(guān)推薦
鄂ICP備17016276號(hào)-1