Continuous biomass charcoal gas cogeneration device

Abstract

The invention discloses a continuous biomass carbon and gas co-production device. A furnace body is arranged on a support frame, a feed opening and a feed hopper are arranged at the top of the furnace body, and a discharge opening and a discharge hopper are arranged at the bottom of the furnace body; a drying room and a carbonization room are sequentially arranged in the inner chamber of the furnace body from top to bottom; a gas inlet communicated with the inner chamber of the furnace body is formed in the side wall, at the top of the carbonization room, of the furnace body, and is communicated with a gas outlet of a combustion room via an intake pipeline; a gas outlet communicated with the inner chamber of the furnace body is formed in the side wall of the discharge hopper and connected with a nozzle via an exhaust pipeline, a nozzle head of the nozzle extends into the combustion room after penetrating a through hole in the combustion room in a sealing manner, and an exhaust device is arranged on the exhaust pipeline; a sieve pore plate is arranged at the bottom of the carbonization room, the carbonization room and the discharge opening are separated by the sieve pore plate, and the sieve pore plate is driven by a driving device. The continuous biomass carbon and gas co-production device produces less tar in the working process, and can obtain charcoal and combustible gases with high heat values.

Description

technical field [0001] The invention relates to the technical field of biomass carbonization, in particular to a continuous biomass charcoal gas cogeneration device capable of producing biochar and combustible gas. Background technique [0002] my country is a big producer of charcoal, with an annual charcoal output of up to 10 million tons. With the rapid development of the national economy, the demand for charcoal is also increasing year by year. At the same time, my country is still a large agricultural production country, with about 7 billion tons of biomass waste such as crop stalks every year, but its utilization rate is only 20%. wasted. Biomass carbonization technology can effectively convert these biomass wastes into biomass carbonization products - combustible gas and biochar, that is, charcoal, which can greatly reduce the demand for natural wood, thereby effectively protecting forestry resources. Biomass carbonization is the use of thermochemical reaction princi...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used biomass carbonization devices are manual carbonization kilns and semi-industrial carbonization kettles. These two biomass carbonization devices always need to rely on external heat energy to carbonize biomass raw materials at high temperature during the working process, and the carbonization heating time needs at least 10 days. Left and right, the carbonization time is long, the yield is low, the energy consumption is high, and the degree of polluting gas generated during the carbonization process is even greater than the degree of polluting gas generated by direct incineration of biomass raw materials, which seriously pollutes the environment

In addition, the above two biomass carbonization devices are intermittent manual operations, which cannot achieve continuous production, the output is not high, and the carbonization temperature cannot be accurately controlled, and they rely heavily on the operating experience of technicians. The carbonization product content of the substance is also unstable and the quality is poor

Some charcoal and gas cogeneration devices are used to produce charcoal and combustible gas. At present, the common charcoal gas cogeneration devices on the market will produce a large amount of tar during the carbonization process. Tar is quite harmful: reducing the efficiency of biomass gasification and affecting Biomass carbonization quality and yield. After tar is liquefied, it is easy to block pipelines, corrode metals, affect the normal operation of biomass carbonization, damage the carbon-gas cogeneration device, and shorten the service life of the carbon-gas co-generation device. The smell is harmful to the human body and seriously pollutes the surrounding environment

At present, the water washing method is generally used to remove the tar produced in the carbonization process of the carbon-gas cogeneration unit, but the wastewater after washing is difficult to treat, difficult to recycle, and seriously pollutes water resources.

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