H-shaped carbonization furnace and method for producing biomass activated carbon and carbonized combustion gas by using same

Abstract

The invention relates to an H-shaped carbonization furnace and a method for producing biomass activated carbon and carbonized combustion gas by using the same. The H-shaped carbonization furnace comprises a charge pipe port, a charge pipe, a rotating sleeve, a rotating shaft, a distributing device, an air inlet pipe port, a gasification chamber, a carbonization chamber, an ignition furnace door, a dump grate, a furnace body water jacket, a lower deashing furnace door, a refractory liner, an integrated furnace seat, high-temperature carbon dioxide, a conical ash dump bucket, an ash discharge pipe port, a support shaft sleeve, a conical carbon discharge bucket, a carbon outlet pipe port, a support plate, a lower support, a carbon scraper, a combustion gas suction loop, a combustion gas suction pipe port, a furnace roof, rotating gears, an inside rake and a water cooling support. The high-temperature heat of the carrier in the produce combustion gas is used for producing the biomass activated carbon in a dry distillation carbonization mode, thereby saving the energy and increasing the heat value of the biomass combustion gas; and wood tar in the combustion gas is collected in the dry purification technology of combustion gas, wood vinegar is used as an industrial chemical raw material, and thus, agricultural waste resources are converted into industrial chemical raw materials.

Description

technical field [0001] The invention relates to an H-type carbonization furnace and a method for producing biomass activated carbon and carbonization gas, and belongs to the technical field of carbonization gas generator manufacture and application. . Background technique: [0002] The prior art double-cavity carbonization furnace is a gasification furnace chamber and a carbonization furnace chamber that are set separately in the furnace. During operation, agricultural and forestry wastes such as biomass straws are processed, pulverized and formed into separate furnace chambers in the furnace. The method of carbonizing biomass into dry distillation charcoal and biomass gas, the biochar produced by this method is basically the same as the composition of wood charcoal, but there are still some defects in industrial operation as follows: due to the operation of the double-chamber carbonization furnace The air (gasification agent) is blown in from the lower part of the gasifica...

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Problems solved by technology

[0002] The prior art double-cavity carbonization furnace is a gasification furnace chamber and a carbonization furnace chamber that are set separately in the furnace. During operation, agricultural and forestry wastes such as biomass straws are processed, pulverized and formed into separate furnace chambers in the furnace. The method of carbonizing biomass into dry distillation charcoal and biomass gas, the biochar produced by this method is basically the same as the composition of wood charcoal, but there are still some defects in industrial operation as follows: due to the operation of the double-chamber carbonization furnace The air (gasification agent) is blown in from the lower part of the gasification furnace cavity in the furnace, and the positive pressure bottom-up gasification reaction is adopted, so that the gasification materials in the furnace will generate high-temperature gas of 400-600 °C during gasification and flow from the furnace cavity. The top enters the carbonization furnace cavity set next to it, so that high-temperature gas enters the carbonization furnace from the upper part of the carbonization furnace cavity, and the carbonized material is dry-distilled into biomass charcoal and biomass gas. The carbonization effect of the material on one side is ideal, but on the other side where the distance between the two chambers is far, the carbonization effect of the material in the carbonization furnace chamber is not ideal due to the lack of distribution of high-temperature gas, and semi-green charcoal (commonly known as flower charcoal) appears. The quality of the carbonized products in the furnace cannot be guaranteed, especially when the furnace is running, because the furnace mouth cannot be sealed and fed, and the feeding port on the furnace is frequently opened during feeding, which cannot guarantee the strict sealing requirements of the gasifier during operation , there are still defects in unsafe production

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