Pollution and Control in the Production of Magnesia Refractory Materials

The sources of pollution and pollutants produced in the production of magnesia refractories are: production of emitted dust; smoke, dust, sulfur dioxide, nitrogen oxides, and carbon monoxide emitted from the furnace; phenolic resin, asphalt, paraffin, and other binders emit formaldehyde under heating conditions. , Asphalt smoke, paraffin vapor (heterocyclic compounds) and other harmful gases; noise generated by various equipment, air compressors, fans, and various types of pumps; equipment cooling water, circulating water drainage, flushing workshop floor wastewater, and domestic sewage Wastewater, etc.; solid waste discharged from dust collectors, product processing equipment, furnaces, and living facilities. The waste magnesite chrome brick recovered from the cement kiln contains toxic hexavalent chromium, is soluble in water, and may pollute groundwater.