Various work of vacuum metallurgy must meet certain vacuum degree, and different operations have different requirements for vacuum degree. At present, a variety of vacuum pumps have been produced, which are composed of different pumping principles, have different characteristics, achieve different starting pressure, and are also suitable for operation under a certain range of pressure.
Due to the different arrival and applicable pressure of various vacuum pumps, if the working pressure is low, it is necessary to combine two or more vacuum pumps to meet the demand.
Vacuum metallurgy equipment selection of vacuum pump in metallurgical industry. The gas source for cold furnace pre extraction and hot smelting is roughly as follows.
The atmosphere in the extracted space (related to the extracted volume)
Gases emitted during the process (including generated and introduced gases, related to time, depression, pressure and production process)
Exhaust of surface exposed in vacuum (related to material type, surface area, time, temperature and pressure, etc.)
Gas leakage and penetration (related to leakage rate of system equipment, equipment operation, welding quality of static seal and structural material)
Volatile gases caused by vapor pressure of materials (related to temperature and pressure).
The gas produced in the vacuum metallurgy operation may contain different substances, such as dust, fine metal particles, steam, volatile organic compounds, harmful gases, etc. appropriate measures should be taken for the vacuum pump or pipeline system to ensure smooth exhaust, good pump operation, long service life and no impact on the environment.
In order to meet the needs of metallurgical technology, the revision of vacuum system, for the above-mentioned necessary air flow, select appropriate vacuum elements – pump and valve, etc., and put forward reasonable configuration scheme according to the exhaust process, so as to remove the gas in the exhaust space, overcome the exhaust and leakage, and keep the necessary vacuum degree in the vacuum chamber all the time.
Roots vacuum pump in vacuum metallurgy application
In the process of steelmaking, if the molten steel is vacuum treated at about 20torr, the quality of steel will be greatly improved. For example, converter steelmaking can improve the quality of molten steel by vacuum treatment. After vacuum treatment, molten steel can strengthen the smelting process in the steelmaking furnace and save ferroalloy consumption. Therefore, the vacuum treatment technology of molten steel is widely used in China. With the rapid development of China’s iron and steel industry, the depth and breadth of vacuum treatment technology for molten steel is gradually expanding.
Roots vacuum pump working principle :
Roots vacuum pumps are many front-end pumps that operate vacuum pumps and require pumping for all industrial vacuum applications.
Roots vacuum pump is completely working without leakage, and there is no sealed oil and other working fluid compression chamber. Roots vacuum pump is equipped with bypass valve, which needs free maintenance.
Roots vacuum pump has a wide range of attractiveness and extreme pressure, can be customized for the front stage pump of integrated vacuum system, we can customize solutions for many industrial applications and high vacuum. Effective.
In order to evacuate the explosive gas and process produced in flammable and explosive environment, supercharger technology is based on the mature convection cooling concept. Low pressure pump makes roots vacuum pump work safely. With advanced industrial facility modifications and rigorous testing, roots vacuum pumps can cope with stringent explosive applications.
If possible, kindly suggest please your working industry/process, working pressure, working medium, etc. Given detailed request helps to gain better-matched customized solution. Thanks for your patience.
your request will be responsed within 3 hours, kindly pay attention to your email please.
