| 摘要 |
FIELD: burning of gaseous fuel. SUBSTANCE: burning facility can be utilized in ferrous and non-ferrous metallurgy to heat heating and heat-treating furnaces. Burning facility includes air-feeding body, gas tube placed along axis of body with plugged outlet butt and outlet holes and extension positioned uniaxially around gas tube in which space mixing chamber formed by mated conical and cylindrical sections is made. Inlet of extension is fitted with conical shell matched with its greater inner diameter with greater inner diameter of conical section of mixing chamber. Outer greater diameter of extension formed by shell and conical section of extension are equal to inner diameter of air-feeding body. Circular clearance exists between cylindrical section of mixing chamber and face part of air-feeding body. Holes inclined relative to axis of facility are made in walls of conical section of mixing chamber and conical shell. EFFECT: widened control range, increased efficiency and operational reliability of burning facilities which heat heating and heat-treating furnaces. 1 dwg
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