【Ten Years of Rapid Development in Chemical Processing Equipment】The largest domestic double-high-pressure coal slurry feed pump with specified parameters was successfully tested between 1992 and 2023

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Ten years of rapid development in chemical processing equipment – praise for China’s prosperity and strength. This is just a starting point; more participation will make things even more lively. HaiChuan becomes even better with your involvement; we welcome everyone to join in the forum discussions. Be careful of fire hazards due to the high temperatures in July. ********************************************* On April 18, 2023, the first dual-cylinder, three-stroke, single-acting hydraulic diaphragm pump developed and produced by Chongqing Pump Company was successfully tested. This pump is currently the dual-high-pressure coal slurry feed pump with the highest technical specifications in China. The successful development of the dual-high-pressure coal slurry pump marks the company’s full entry into the high-pressure coal slurry pump market in the coal chemical industry, enabling rapid growth in this sector. The high-pressure slurry pump is a key equipment for the gasification unit in a refining and chemical integration project carried out by a company in Shandong. During the development of this type of dual-high-pressure slurry pump, the company utilized the latest membrane technology, valve technology, sealing technology, intelligent oil filling and drainage membrane stroke control technology, pulsation control technology, PLC control technology, as well as crankshaft phase control technology. The staff in the final assembly workshop, electrical room, and slurry pump room worked together in unity to efficiently advance the assembly and performance testing of the first dual-high-pressure slurry pump. During the testing of high-pressure slurry pumps, a flow rate deviation of ≤2% between the two outlets is a key criterion for verifying dual-high-pressure slurry pumps; at the same time, it is required that there be no negative deviation in the rated flow rate, with any positive deviation being ≤3%. After 48 hours of trial operation, this pump features stable performance and low noise. Through verification and calculation of the test data, the technicians found that both flow rate and pressure meet the design requirements. Once the equipment is operating stably, the flow rate difference between the two outlets is within 1.3%–1.9%, with a positive deviation from the rated flow rate of ≤1.6%. Test data show that the company’s first dual-high-pressure coal slurry pump successfully passed the performance tests, meeting the user’s requirements for the parameters of such pumps to a high standard; the user’s expert group gave high praise during the on-site observation of the tests.