Vacuum System in Chongqing Iron and Steel Industry

In order to further improve product structure and steel quality in Chongqing Iron and Steel Industry, vacuum equipment technology is introduced. It is found that the vacuum system is greatly restricted by vapor from the current situation of domestic and foreign use. At the same time, in order to comply with the concept of environmental protection and efficient recovery and utilization of Chongqing Iron and Steel Industry, the vacuum system is chosen. When the limit pressure of the vacuum system reaches 67 Pa, the maximum pumping capacity can reach 800 kg/h, and the pressure in the vacuum tank can reach 67 Pa within 415 minutes of pumping time.

Vacuum system is used in the industry of Chongqing Iron and Steel Co., Ltd. Its metallurgical effect can reach or surpass the same technological target of multi-stage steam jet pump vacuum system. Its degassing rate is 63.5%, the ultimate decarbonization rate is 10@10-6, and T[O][30@10-6 in steel. Vacuum system is one of the necessary mechanical equipment of the elite equipment. Its extraction ability, extraction rate and other technological parameters directly affect the normal operation of RH and its metallurgical role. In the industry of Chongqing Iron and Steel Company, when the design of vacuum pump is 67Pa, the maximum pumping capacity is 800kg/h, which is basically the same as that of domestic steam pump with the same tonnage RH.


The vacuum system has the functions of degassing, decarbonization, temperature compensation, uniform temperature composition of molten steel and removal of inclusions in steel. It has been widely used in steelmaking because of its good refining effect and short treatment period.

XD-series-rotary-vane-vacuum-pump

2X-Series-Rotary-Vacuum-Pump

ZJP-Series-Roots-Vacuum-Pump