DEVICE FOR HEATING HEARTHS OF SINTERING AND ROASTING MACHINES

摘要

FIELD: metallurgy; sintering and roasting machines using gases at low heat of combustion and low pressure as fuel. SUBSTANCE: device includes burner arch, air supply housing with blade swirler, central gas pipe and circular air passage between swirler and gas pipe. Outlet holes of circular passage are converging in such way that axis of each hole is located at angle $$$ =30-60 deg relative to plane F passing through center of outlet section of this hole and axis $$$ of device and at angle $$$ =30-60 deg relative to plane S perpendicular to axis of device; direction of turn of axes of holes relative to axis of device coincides with direction of turn of swirler blades. EFFECT: enhanced reliability.