Applications of vacuum pumps in the mining and metallurgy industry include vacuum smelting, steel degassing, vacuum sintering, vacuum annealing, vacuum pressure gas quenching, and vacuum heat treatment.

Vacuum Filtration

In applications involving cake dehydration on flat plate filters, rotary drum filters, belt filters, and ceramic filters, liquid ring pumps are widely recognized. The proper calculation and selection of liquid ring pumps are based on the type of filtrate and filtration equipment.

Multiple Effect Evaporator

The final effect evaporator typically employs vacuum and a liquid ring pump to remove non-condensable gases, maintaining the proper vacuum level within this evaporator.

Waste Gas Recovery

Liquid ring compressors are used to recover carbon monoxide and other waste gases generated during smelting and similar production processes.        

Gas Extraction

The accumulation of gas, particularly methane, in underground coal mines is highly dangerous and has led to explosions and related casualties and losses. Vacuum systems specifically designed for this application can help mitigate such occurrences.

Steel Degassing

Before casting, liquid iron contains a significant amount of gases such as nitrogen and oxygen. During the degassing process, the liquid iron is either cast in a vacuum casting machine or vacuum equipment is used to reduce the gas content in the iron.