The gas pressure in the reaction layer of the blend in the process of ladle smelting of ferrotungsten

The paper describes the method and results of measuring of gas pressure in the reaction zone of the ferrotungsten smelting hearth. Results of study of metal and slag in the slag-metal blowout from the hearth are also presented. A comparative analysis of functioning of standard hearth with fireproof brickwork and a hearth of new construction where gases leave reaction zone through a gas-permeable heat isolation filling and perforated frame is thus supplemented with the results of measuring the gas pressure in reaction zone.