Modified water-cooled flue
The main technical solution of the cooling flue is to install a
cooling fin on the outer wall of the pipeline, connect the outer
casing in the pipe jacket, connect the axial flow fan with an air
pipe at one end of the outer casing, and set an exhaust port at the
other end of the outer casing.
The air pipe is connected with the outer casing in a inclined
manner, and the outlet of the air pipe faces one end of the exhaust
port installed on the outer casing. The nozzle assembly is
connected on the outer casing, the nozzle in the nozzle assembly
faces the cavity between the outer casing and the pipeline, and the
nozzle assembly is connected with the water supply pipe by means of
a nozzle.
Measures to prevent flue blockage:
1, the tube bundle surface of supersonic arc spraying heat, wear,
erosion resistance, wear resistance of special alloy wire coating,
put on the converter smoke hood "protective clothes", and according
to the process conditions, develop a reasonable converter loading
system, oxygen supply system, temperature system to ensure stable
production at the same time, reduce the flue due to abnormal
smelting methods of slag wear to the tube bundle.
2, strictly control the shape of the furnace.
3, do not use oxygen to blow into the flue, especially with metal
hot slag.
4, from the manufacturing process, installation adjustment, use
requirements and maintenance and other aspects, grasp every link,
take targeted measures, can effectively reduce the recurrence of
failure, extend the service life.
Cooling flue is an important equipment for converter steelmaking:
It has the function of collecting, cooling and transporting flue
gas. In addition, the flue is also a waste heat boiler for the
production of steam.
