我国自行设计制造的GPJ60／3加压过滤机于1994年10月通过了国务院重大办、煤炭部和山东省经安联合进行的技术鉴定。该机的问世，标志着我国成为继德国、奥地利之后，第三个能自行研制加压过滤机的国家。它的使用可以解决因精煤水份超标给国家造成的巨额经济损失，改善寒冷地区 China’s own design and manufacture of GPJ60 / 3 pressure filter in October 1994 adopted a major Office of the State Council, Ministry of Coal and Shandong Province by the joint security of the technical appraisal. The advent of the aircraft, marking China as Germany, Austria, after the third can develop their own pressure filter countries. Its use can solve the huge economic losses due to excessive coal water to the country, improve the cold areas