Metallurgical furnace waste gas purification - by thermal updraught passing gases to electrostatic filters in roof structure

摘要

Waste gases from metallurgical furnaces are raised, mixed with the ambient air in the furnace bay, to a screened collector area in the roof apex. They reach electrostatic dust pptns. on both sides nd can pass out clean through louvres to the outside. The dust is collected and slides in ducts to the shop floor containers. This is a simple way for the efficient dust collection in metallurgical furnace installations. The thermal updraught saves mechanical fans and reduces the noise and the maintenance required. Waste gases which cannot be absorbed by a direct exhaust system during the charging and pouring operations are effectively processed.