Biomass burning device for butt-jointed boilers, heat exchangers and heat supply systems

Abstract

The invention discloses a biomass burning device for butt-jointed boilers, heat exchangers and heat supply systems. The biomass burning device comprises a burner body, a carbonizing machine and a vapor generator, wherein the carbonizing machine is used for producing fuel required by burning of the burner body; and a vapor output pipe of the vapor generator is communicated with a burning chamber of the burner body. Tar is separated out of raw biomass materials through preliminary cracking by the carbonizing machine, so that the obtained biomass fuel is low in tar content, and the phenomenon of coking inside the burning chamber during burning is effectively avoided. Meanwhile, water vapor is used for supporting burning, so that coking elimination can be facilitated, and the fire temperature of burning flames, the biomass fuel rate and the heat value can be increased. According to the biomass burning device, the carbonizing machine, the vapor generator and the burner body are combined organically, so that the problems that traditional biomass burners are low in burning rate, easy to coke, low in work efficiency, unstable in operation and the like are solved. The biomass burning device can be used for the butt-jointed boilers, the heat exchangers and the heat supply systems as well as other equipment or systems using open fire for heating, such as large thermal motors and the like.

Description

Technical field [0001] The invention involves the field of burning technology, especially the biomass burning device for connecting boilers, heat exchangers, and heating systems. Background technique [0002] Biomass fuels are mostly processed by stem -shaped crops, mainly corn, wheat rice straw, rice shells, straw, wood, etc., which can come from industry, agriculture, forest and living waste, and have a wide range of sources.The water content of general biomass combustion is less than 10%to 15%, the gray content is less than 1.5%, the sulfur content and chlorine content are less than 0.05%, and the nitrogen content is less than 0.5%. It is an ideal renewable energy.The use of biomass combustion as an important direction of new energy development has attracted more and more attention. [0003] At present, the use of biomass fuel is mainly to make biomass into particles, and then send it into the traditional biomass burning machine to combine and fire to heat the boiler, thermal ...

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 CN 101737795 A) discloses "Biomass gasification boiler and coupled combustion method using air steam as gasification agent", which is based on The biomass gasification boiler with air steam as the gasification agent uses water vapor to adjust the heat released by the incomplete combustion of biomass and the heat absorbed by biomass gasification to reduce coking. Although this technical solution uses water vapor as the gasification agent Reduce coking in the furnace, but this method can only reduce coking and it is difficult to avoid coking efficiently, and 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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