Biomass particle combustion furnace

Abstract

The invention relates to boiler combustion equipment, in particular to a biomass particle combustion furnace. A feeding chamber and a combustion chamber are arranged in a furnace body, the feeding chamber is internally provided with a feeding device and an air distribution system, fuel enters the furnace body and is delivered into the combustion chamber through the feeding device, a combustion chamber air distribution layer is arranged on the outer side of the combustion chamber, multiple vent holes are formed in the side walls of the combustion chamber, the combustion chamber air distribution layer conducts air distribution through the air distribution system, an automatic igniter is arranged in the combustion chamber, a fire spouting hole is formed in the outer side of the combustion chamber, and a fire spouting hole air distribution layer which is communicated with the combustion chamber air distribution layer is arranged on the outer side of the fire spouting hole. According to the biomass particle combustion furnace, the fuel is burnt more sufficiently, continuous feeding is guaranteed, tempering is effectively prevented, and the safety performance of equipment is guaranteed.

Description

technical field [0001] The invention relates to the field of boilers, in particular to a biomass particle combustion furnace. Background technique [0002] The traditional combustion furnace is a vertical design, and the fuel is stacked layered combustion, which requires the use of non-coking fuel, and the coked fuel needs to be shut down for cleaning after about two hours of use in the equipment. As the country pays more and more attention to energy conservation and environmental protection, biomass pellet fuel has been widely used in actual production and life. limited, the combustion of biomass particles is not sufficient, the fuel burnout rate is usually not more than 70%, there is a waste of energy, and the internal air distribution method is adopted, the metal wall of the air distribution layer inside the burner is in direct contact with the flame, no matter what is replaced All kinds of high-temperature-resistant metal materials are prone to burnout of the burner, wh...

AI Technical Summary

Problems solved by technology

[0002] The traditional combustion furnace is a vertical design, and the fuel is stacked layered combustion, which requires the use of non-coking fuel, and the coked fuel needs to be shut down for cleaning after about two hours of use in the equipment

As the country pays more and more attention to energy conservation and environmental protection, biomass pellet fuel has been widely used in actual production and life. limited, the combustion of biomass particles is not sufficient, the fuel burnout rate is usually not more than 70%, there is a waste of energy, and the internal air distribution method is adopted, the metal wall of the air distribution layer inside the burner is in direct contact with the flame, no matter what is replaced All kinds of high-temperature-resistant metal materials are prone to burning out of the burner, which greatly increases the maintenance cost of the enterprise and also affects the normal use of the equipment.

In addition, the biomass combustion equipment in the prior art mostly adopts a single screw feeding mechanism when burning. This structure is easy to form a blockage at the feeding port when feeding, especially when conveying biomass with a small material specific gravity. It hinders the normal feeding, and the feeding speed control is not accurate enough, sometimes it is difficult to ensure continuous feeding. In addition, this structure also has problems such as burning backfire and returning smoke when feeding.

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