Special three-stage air-distribution anti-decompression anti-coking furnace head for biomass forming fuel flue-cured tobacco

Abstract

The invention discloses a special three-stage air-distribution anti-decompression anti-coking furnace head for biomass forming fuel flue-cured tobacco. The furnace head comprises a furnace head body;an air-distribution plate is disposed on one side of the furnace head body; a first-stage air inlet and a second-stage air inlet are formed in the bottom of the air-distribution plate; a three-stage air inlet with a three-stage air distributor is disposed in the middle of the top of the air- distribution plate; and a push-pull type baffle which separates the furnace head body from an ash receivingdevice in a sealing mode is disposed at the bottom of the furnace head body. Three-stage air distribution can be achieved, meanwhile a sealed state can be achieved for ventilation and oxygen supply,sufficient oxygen supply and uniform and full combustion are guaranteed, the furnace combustion coking is effectively prevented, and the operation reliability and safety are high; meanwhile the air distribution magnitude can be flexibly adjusted, the fuel consumption is low, the heat energy utilization ratio is improved greatly, the emission load of harmful waste gases is reduced, energy is saved,the environment is protected, and the practicability is high; and the furnace head is mainly used for technical transformation of existing coal-firing flue-cured tobacco furnaces and is good in popularizing prospect.

Description

technical field [0001] The invention relates to a three-stage air-distribution, pressure-loss and coking-proof burner dedicated to flue-cured tobacco for biomass briquette fuel, and belongs to the field of biomass fuel stove components. Background technique [0002] With the improvement of national environmental protection requirements, it is required to reduce the use of fossil fuels and increase the use of biomass fuels. Existing burners for flue-cured tobacco with biomass fuel generally install a furnace bridge under the burner and in the ash collection room, and the air distribution pipe is connected to the ash collection room to distribute air from the bottom. The air inlet of the burner with this design is easy to Coking and clogging lead to large wind resistance, resulting in loss of wind pressure, resulting in insufficient combustion, and the wind pressure cannot be adjusted according to actual use needs, low flexibility, and easy to cause energy waste; The secondar...

AI Technical Summary

Problems solved by technology

Existing burners for flue-cured tobacco with biomass fuel generally install a furnace bridge under the burner and in the ash collection room, and the air distribution pipe is connected to the ash collection room to distribute air from the bottom. The air inlet of the burner with this design is easy to Coking and clogging lead to large wind resistance, resulting in loss of wind pressure, resulting in insufficient combustion, and the wind pressure cannot be adjusted according to actual use needs, low flexibility, and easy to cause energy waste; The secondary air supply burner used for biomass fuel combustion, that is, it adopts primary and secondary air distribution at the bottom and periphery of the burner. During the combustion process, the oxygen around the flame is sufficient, but there will be insufficient oxygen supply in the center of the flame. problems, resulting in insufficient and uneven combustion in the center of the flame, which can easily lead to serious fuel consumption, insufficient combustion of fuel and combustible gas, reduced heat energy utilization rate, and increased concentration of discharged pollutant gases.

Images