Temperature control gear of hot blast furnace

Abstract

The invention relates to a temperature adjusting mechanism of hot-wind furnace. In detail it is set on the air outlet to control hot-wind temperature of heat resource automatically. Cover plate is set on the base plate and two valve base plates are set on the base plate. Two valve doors are set on the guiding groove of valve door respectively. By bearing seat two executing screw shafts and position driving screw shafts are set on the base plate. Driven chain wheel and sprocket for main drive are set on two driving screw shafts respectively and position driven chain wheel is set on the position driving screw shaft. Speed reduction motor is set on the assembling plate for motor. Flue gas with high temperature in fire box or hot-wind furnace is discharged out by temperature adjusting mechanism so as to prevent the dry ashing of heat exchanger automatically in the invention. The quality of heat exchanging can be controlled and by controlling hot-wind temperature automatically several parameters such as the air amount, air speed and air pressure so on in wind exchanging channel are not changed. There is no influence to the service life of heat exchanging part in hot-wind furnace and the parts do not deformed because of overhigh temperature.

Description

technical field [0001] The invention relates to a temperature regulating mechanism of a hot blast stove, in particular, it is installed on the air outlet pipe of the hot blast stove, and can automatically control the temperature of the hot blast of the heat source. Background technique [0002] At present, the existing temperature adjustment mechanism of the hot blast stove adopts the method of distributing cold air to control the outlet air temperature of the hot blast stove. This method of distributing cold air has poor temperature control accuracy, large temperature fluctuations, large heat loss, and low efficiency; especially When the heat exchange exhaust fan is shut down, the high-heat flue gas in the heat exchanger cannot fully exchange heat, which will cause dry burning of the heat exchanger of the hot blast stove, and the temperature of the heat exchanger will be overheated, causing deformation of the heat exchange device, thereby reducing the use life. Contents o...

AI Technical Summary

Problems solved by technology

[0002] At present, the existing temperature adjustment mechanism of the hot blast stove adopts the method of distributing cold air to control the outlet air temperature of the hot blast stove. This method of distributing cold air has poor temperature control accuracy, large temperature fluctuations, large heat loss, and low efficiency; especially When the heat exchange exhaust fan is shut down, the high-heat flue gas in the heat exchanger cannot fully exchange heat, which will cause dry burning of the heat exchanger of the hot blast stove, and the temperature of the heat exchanger will be overheated, causing deformation of the heat exchange device, thereby reducing the use life

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