Biomass gas generation direct combustion system and its application

Abstract

Provided is a biomass gas generating and direct burning system. The biomass gas generating and direct burning system comprises a negative-pressure open type biomass carbonization device and a biomass gas direct burning device. The negative-pressure open type biomass carbonization device comprises a furnace body with a carbonization chamber at the top. The top end of the carbonization chamber is open, and the bottom of the carbonization chamber is provided with a fire grate. A gap communicating with a gas outlet in the top of the furnace body is formed between the side wall of the carbonization chamber and the furnace body. The gas outlet is connected with a negative pressure fan through a pipeline. The biomass gas direct burning device comprises a first burning chamber and a second burning chamber, wherein the front end of the first burning chamber is connected with an air inlet pipeline, the rear end of the first burning chamber communicates with the second burning chamber through a high-temperature hot airflow communication opening, the outer side of the first burning chamber is provided with a primary air distribution pipeline used for distributing air for the air inlet pipeline and a secondary air distribution pipeline used for distributing air for the rear end of the first burning chamber, and the first burning chamber is provided with an igniter. An outlet of the negative pressure fan is connected with the air inlet pipeline through a pipeline. The biomass gas generating and direct burning system can make generated high-temperature biomass gas be directly burnt for use, thereby being safer and more environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of biomass gas production and application, in particular to a biomass gas generation direct combustion system and its application. Background technique [0002] Biomass energy, as a renewable energy, is currently the fourth largest energy source in the world after coal, oil and natural gas. Biomass energy has the characteristics of large reserves, renewable, storable and replaceable, carbon neutral and clean, and has unique advantages in energy utilization and environmental protection. At present, with the continuous reduction of primary energy sources such as coal, oil, and natural gas, human beings pay more attention to the development and utilization of various new energy sources. [0003] Biomass carbonization is the process of using biomass resources (such as straw, sawdust, bagasse, rice bran and other agricultural and forestry waste) as raw materials, and heating to high temperature in the absence of...

AI Technical Summary

Problems solved by technology

[0004] However, the existing biomass carbonization furnaces usually have a positive pressure closed and stuffy tank carbonization structure, and there are great safety hazards in the production process. At the same time, the biomass gas produced by it has a high tar content, which is easy to block the pipeline, affecting normal production, and the release of tar is still difficult. will cause environmental pollution

Before the biomass gas is burned and utilized, it often needs to be cooled, which causes the latent heat of the biomass gas itself to be lost, and the cooling process of the condensing equipment will also generate waste water.

At the same time, biomass natural gas generally has a high tar content, which cannot be fully cracked, difficult to ignite, unstable to burn, difficult to burn fully, unable to fully release heat energy, and the nitrogen oxides and tar produced are likely to cause environmental pollution

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