我厂维修队革命职工高举毛主席的伟大旗帜,坚持“鞍钢宪法”,大搞群众运动,大搞技术革新和技术革命,于1975年12月开始,仅用三个多月的时间,研制成功了丙烷泵(KBH—55—180Cr)封油自动保护器,攻克了丙烷脱沥青装置设备中的一大难关,于1976年3月投入使用,效果良好。丙烷泵是丙烷脱沥青装置的主要设备,它运转正常与否对装置的生产影响很大。该 Our factory repair team revolutionary workers hold high the great banner of Chairman Mao, adhere to the “Anshan Iron and Steel Constitution”, vigorously promote the mass movement, vigorously technological innovation and technological revolution, beginning in December 1975, only three months time, successfully developed Propane pump (KBH-55-180Cr) oil seal automatic protection device, overcome the propane deasphalting equipment in a major difficulty, put into use in March 1976, the effect is good. Propane pump propane deasphalting device is the main equipment, it is functioning properly or not have a great influence on the production of the device. This