Biomass combustion device for docking boilers, heat exchangers, heating systems

Abstract

Biomass combustion device for docking boilers, heat exchangers, and heating systems, including the burner body, the carbonization machine used to generate the fuel required for combustion of the burner body, and the steam generator. The steam output pipe of the steam generator is connected to the combustion The furnace of the machine body is connected. After the biomass raw material is initially cracked by the carbonization machine, tar is precipitated, and the resulting biomass fuel has a low tar content, which effectively avoids coking in the furnace during the combustion process. At the same time, the use of steam to support combustion can not only help to eliminate coking, but also improve the fire temperature of the combustion flame, the biomass fuel rate and the calorific value. The present invention organically combines the carbonization machine, the steam generator and the burner itself to improve Traditional biomass burners have problems such as low combustion rate, easy coking, low work efficiency and unstable operation. In addition to being used for docking boilers, heat exchangers, and heating systems, the present invention can also be applied to other equipment or systems that use open flame heating, such as large thermal motors.

Description

technical field [0001] The invention relates to the technical field of burners, in particular to a biomass burning device for connecting boilers, heat exchangers and heating systems. Background technique [0002] Biomass fuels are mostly processed stem crops, mainly corn, wheat, rice straw, rice husk, straw, wood, etc., which can come from a wide range of sources such as industrial, agricultural, forest and domestic waste. Generally, the dry basis of biomass burning has a water content of less than 10%~15%, an ash content of less than 1.5%, a sulfur content and a chlorine content of less than 0.05%, and a nitrogen content of less than 0.5%. It is an ideal renewable energy source. Biomass combustion utilization, as an important direction of new energy development, has received more and more attention. [0003] At present, the use of biomass fuel is mainly to make biomass into pellets, and then send it to a traditional biomass burner to burn and start a fire to heat boilers, ...

AI Technical Summary

Problems solved by technology

The traditional biomass burner is mainly composed of a falling hopper, a feeding device, a fan and a furnace, but the traditional biomass burner is easy to coke during the combustion process, easy to block the pipeline, accumulate in the lower part of the furnace and block the screen under the furnace, so that It cannot work continuously and stably due to the need to frequently stop the furnace for slag removal and re-ignition

At the same time, the combustion efficiency of biomass pellet fuel in traditional biomass burners is low, and there is still room for improvement in the fire temperature

[0004] Chinese invention application (publication number CN101737795A) discloses "biomass gasification boiler using air steam as gasification agent and coupled combustion method", the biomass gasification boiler using air water vapor as gasification agent utilizes steam To adjust the heat released by the incomplete combustion of biomass and the heat absorbed by the gasification of biomass to reduce coking. Although this technical solution uses water vapor as the gasification agent to reduce coking in the furnace, this method can only reduce coking and is difficult to avoid efficiently. Coking situation, the effect of preventing coking can also be improved

Moreover, the biomass gasification boiler using air steam as the gasification agent is only suitable for the boiler heating field, with low flexibility and narrow application range

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