Self-combustion biomass char production furnace

Abstract

The invention relates to equipment for producing biomass char, in particular to a self-combustion biomass char production furnace. The production furnace is cylindrical; an inner wall which is concentric with the production furnace is arranged in the production furnace; a part inside the inner wall is a combustion hearth; a drawing plate is arranged in the middle of an annular region between a combustion hearth wall and the outer wall of the production furnace to divide the annular region into an upper carbonization hearth and a lower cooling hearth; a plurality of combustible gas reflux pipelines are arranged; and one end of each combustible gas reflux pipeline is connected to the side wall of the upper part of the carbonization hearth, while the other end is communicated to the combustion hearth from the lower side of the drawing plate. In the production furnace, biomass energy is utilized, so that the utilization of fossil energy is avoided and low carbon emission is achieved; combustible gas is recycled and heat utilization ratio is high, so that pollution on the atmospheric environment is reduced; due to a carbonization and cooling integrated design, safety and high efficiency are achieved; and the production furnace has a simple design, low cost and high comprehensive energy utilization ratio and is movable.

Description

technical field [0001] The invention relates to equipment for producing biomass coke, in particular to a self-igniting biomass coke production furnace suitable for small-scale production of biomass coke. Background technique [0002] Biomass coke (biochar) is similar to charcoal. It is a solid product of the pyrolysis process of biomass materials under high temperature (200-700 ° C) and low oxygen conditions. It is black, light and porous. The kiln-type production of charcoal has a long history. The main disadvantages are that it takes a long time, pollutes the environment due to the discharge of a large amount of flue gas, and the operation method is highly experienced. Equipment method production is a new production method, suitable for standardized production, but the disadvantages are large external energy consumption, environmental pollution and high cost. Therefore, the main problems in the current production method are: 1) relying on external energy to generate a hig...

AI Technical Summary

Problems solved by technology

Kiln production of charcoal has a long history, the main disadvantages are time-consuming, a large amount of flue gas is discharged to pollute the environment, and the operation method is highly experienced

Equipment method production is a new production method, suitable for standardized production, but the disadvantages are large external energy consumption, environmental pollution and high cost

Therefore, the main problems in the current production method are: 1) relying on external energy to generate a high temperature environment, which does not meet the future trend of low carbon emissions

2) A large amount of flue gas is discharged outside, polluting the atmospheric environment, which does not meet the actual requirements of environmental protection

3) The kiln method is highly empirical and difficult to master, and the equipment method has high energy costs, which are not suitable for popularization and do not conform to the general trend of all people participating in low-carbon emissions

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