A device for producing biochar for soil improvement

Abstract

The invention discloses a device for producing biochar for soil improvement, which includes a crushing device, a feeding auger and a carbonization furnace, and is characterized in that: the carbonization furnace is sequentially provided with a thermal insulation shell, an inner cylinder and a carbonization inner tank from the outside to the inside, The gap between the thermal insulation shell and the inner cylinder forms a pyrolysis gas channel, the gap between the inner cylinder and the carbonized inner tank forms a flue, the bottom of the carbonized inner tank is set in a conical shape, and the space enclosed by the bottom of the inner tube and the carbonized inner tank A combustion chamber is formed, and a pyrolysis gas outlet pipe is installed on the top of the carbonized liner, and the pyrolysis gas outlet pipe runs through the top wall of the carbonized liner and the inner cylinder. A smoke exhaust pipe is provided, and the smoke exhaust pipe extends upwards from the top wall of the inner cylinder through the heat preservation shell and extends out of the carbonization furnace. Compared with the prior art, the present invention has the following advantages: no external energy is needed, the heat generated by pyrolysis gas is used for carbonization of biomass, and the heat utilization efficiency is high.

Description

technical field [0001] The invention relates to the technical field of biomass carbonization, in particular to a device for producing biochar for soil improvement. Background technique [0002] With various problems such as the use of chemical fertilizers in agricultural production, soil degradation is serious, and soil remediation and improvement has become an important subject. Soil improvement using activated carbon has also become a hot technology. At the same time, agricultural production will produce a large amount of biomass waste such as straw that needs to be disposed of. Simple open burning will cause air pollution. After processing into biomass particles for comprehensive utilization, a large amount of transportation costs will be consumed. This scheme adopts a scheme to directly use the energy of the biomass waste itself, process the biomass waste into biochar in the field, and return it to the farmland to improve the soil and effectively solve the problem of bi...

AI Technical Summary

Problems solved by technology

At the same time, agricultural production will produce a large amount of biomass waste such as straw that needs to be disposed of. Simple open-air burning will cause air pollution, and it will consume a lot of transportation costs for comprehensive utilization after processing into biomass particles.

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