Roots Vacuum Pump for Metal Smelting

Today, many companies are able to produce products such as single rare earth oxides, single rare earth metals, rare earth salts, rare earth alloys, rare earth functional materials, etc., and continues to extend to high value, refined, deep-processed products and downstream application products.

With the rapid development of new materials, military industry, aerospace, new energy vehicles and other industries, the development prospects of the rare earth metal smelting industry are promising.

The traditional smelting method has problems such as high energy consumption and pollution. The industry seeks a new method for metal smelting, and roots vacuum pump is the best choice.  

Metal smelting is a refining technology, which refers to the extraction of metals from ores by roasting, smelting, electrolysis and the use of chemical agents, reducing impurities contained in metals or increasing certain components in metals to smelt the required metals.

Traditional metal smelting methods include pyrometallurgy, hydrometallurgy and electrometallurgy.  


Roots vacuum pump body determines the overall structure of the pump. At present, the overall structure of roots vacuum pump roughly has three types:  

  1. The intake and exhaust ports of the vertical structure are set horizontally, which is convenient for assembly and connection of pipelines. However, the center of the pump is high, and the stability is poor at high speed, so this type is mostly used for small pumps.  

  2. The air inlet of the horizontal pump is on the top and the exhaust port is on the bottom. Sometimes in order to facilitate the installation and connection of the vacuum system pipeline, the exhaust port can be connected from the horizontal direction, that is, the inlet and exhaust directions are perpendicular to each other. At this time, the exhaust port can be opened from the left or right direction. Except for one end of the exhaust pipe, the other end is blocked or connected to the bypass valve. This kind of pump has a low center of gravity and good stability during high-speed operation. Generally, large and medium-sized pumps use this structure.  

  3. The two rotor shafts of the pump are installed vertically with the horizontal plane. The assembly gap of this structure is easy to control, the rotor assembly is convenient, and the pump volume is small. However, the center of the pump is high, the disassembly and assembly of the gear is inconvenient, and the lubrication mechanism is relatively complicated.  


Our roots vacuum pump starts quickly, consumes less power, has low operating protection cost, high pumping speed, high efficiency, and is not sensitive to a large amount of water vapor and dust contained in the pumped gas. The large pumping rate can quickly eliminate the suddenly released gas. This pressure scale is exactly between the oil-sealed mechanical vacuum pump and the dispersion pump. Therefore, it is often connected in series between the dispersion pump and the oil-sealed mechanical vacuum pump to increase the pumping capacity of the pressure range at both ends. At this time it is also called a mechanical booster pump.  

At the same time, roots vacuum pumps are widely used in smelting, degassing, rolling in vacuum metallurgy, and vacuum distillation, vacuum concentration and vacuum drying in food and pharmaceutical industries.



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