长坡选矿厂重介质选矿系统的介质提升输送,原采用6SF型砂泵。由于输送物料浓度高,比重大,致使砂泵磨损严重,检修频繁,影响生产。为了解决上述问题,采用空气提升器代替6SP型砂泵输送介质。空气提升器提升介质的工业试验,在冶金部长沙矿冶研究所的帮助下,于1967年2月做完。生产用的输送介质的空气提升装置,于1972年9月安装,10月试车,经过对原设计装置进行了十多次改革和调整后,于1973年3月份正式投产。投产以来,介质的提升输送运行一直稳定 Changpo concentrator heavy medium beneficiation system to enhance the transport medium, the original 6SF sand pump. As the delivery of high concentration of materials, a large proportion, resulting in severe sand pump wear and tear, maintenance frequent, affecting production. In order to solve the above problems, air lift instead of 6SP sand pump medium. The industrial test of air lift lifting media was completed in February 1967 with the help of Changsha Institute of Mining and Metallurgy, Ministry of Metallurgy. The air lifting device used for the production of conveying medium was installed in September 1972 and tested in October. After more than ten times of reform and adjustment of the original design device, it was officially put into operation in March 1973. Since the commencement of production, the lifting and conveying of media has been stable