Device and method for dragging dust removal fan through industrial boiler steam

Abstract

The invention discloses a device and method for dragging a dust removal fan through industrial boiler steam. The device mainly comprises a turbine, the dust removal fan, a motor and a speed change clutch. The turbine is connected with an input shaft coupler of a transmission; the clutch is arranged at the low-speed end of the transmission, the input end of the clutch is connected with a large gear of the transmission, the output end of the clutch is connected with an output shaft, and the output shaft is connected with the dust removal fan through an output shaft coupler. According to the device and method for dragging the dust removal fan through the industrial boiler steam, steam of waste heat of a boiler is used for driving the fan to remove dust, when the steam is insufficient, automatic supplement is conducted through the motor, the phenomenon that the surplus steam is diffused, so that energy is wasted and environment is polluted is avoided, a large amount of electric power is saved, and the benefits of energy conservation, emission reduction and environmental protection are achieved. In addition, when any of the turbine or the motor breaks down, normal operation of the dust removal fan and normal technological production are not influenced.

Description

technical field [0001] The invention relates to the field of energy saving of industrial boilers, in particular to a device and method for driving a dust removal fan by industrial boiler steam. Background technique [0002] In my country, the utilization of waste heat from high-temperature waste gas is relatively good, such as waste heat recovery from coke CDQ, sensible heat recovery from sinter, and blast furnace gas waste pressure turbine power generation. The recycling rate of waste heat from medium and low temperature exhaust gas is relatively low. Pure low temperature waste heat power generation technology can make full use of waste heat from the iron and steel industry, and is currently a key development direction in China. Pure low-temperature waste heat power generation technology uses water as the working medium, and it is difficult to recover the heat of flue gas below 300 °C. The traditional waste heat power generation system converts thermal energy into electric...

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that when the flue gas is insufficient, the wind turbine still needs to be driven by the motor, and the entire system is running, which wastes electricity and reduces the service life of the entire system, and if any of the wind turbine and the motor fails will affect the normal operation of the entire system

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