BURNER FOR AFTERBURNING OF ANODE GASES OF ALUMINUM ELECTROLYTIC CELL Russian patent published in 2020 - IPC C25C3/06 

FIELD: torches.

SUBSTANCE: invention relates to burner for combustion of anode gases formed during electrolysis in electrolysis cell for production of aluminum with self-baking anode. Burner is divided into two parts – a lower part, which includes zone of preliminary mixing of burned anode gases with air and primary combustion zone, which is a block of steel pipes, and upper part, in which there is intense mixing and final annealing of anode gases, wherein ratio of diameter d of upper part of burner to diameter d₁ of its lower part is d:d₁=1.4÷1.6:1, and ratio of height H of upper section of burner to height h of its lower section is H:h=2.0÷2.5=1, wherein steel tubes in unit relative to horizontal are arranged at angle of 60÷70°, and ratio of diameter d₁ of lower part of burner to diameter d₂ of steel pipes is d₁:d₂=4÷5:1, wherein at the level of the upper part of the steel tubes block a flange is located, the ratio of diameter d₃ of which to diameter d₁ of the lower part of the burner is d₃:d₁=1.05÷1.1:1, ratio of height h₁ of the chamber, in which the block of steel pipes is located, to height h₂ of the block is h₁:h₂=1.02÷1.05:1, and ratio of width b of chamber of inclined tubes arrangement to diameter d₁ of lower part of burner is b:d₁=1.02÷1.05:1.

EFFECT: higher combustion of anode gases.

6 cl, 3 dwg