A self-heating straw carbonization furnace

Abstract

The invention relates to a carbonization device, in particular to a self-circulation heating straw carbonization furnace, solving the problems of the existing carbonization device that combustible components in crops cannot be discharged completely to be utilized and a large amount of fuel is needed to provide heat for carbonization. The device comprises a carbonization chamber, and the carbonization chamber is provided with a feeding port and a discharging port. The device is characterized in that the carbonization chamber is internally provided with an inner combustion chamber, an outer combustion chamber is arranged around the outer side of the carbonization chamber, smoke exhaust holes are respectively arranged between the carbonization chamber and the inner combustion chamber and between the carbonization chamber and the outer combustion chamber, the inner combustion chamber and the outer combustion chamber are respectively provided with an air inlet and an air outlet, and the inner combustion chamber or the outer combustion chamber is also connected with a startup heater to provide heat for startup. Combustible flue gas produced in decomposition can be led out for combustion during carbonization, and the fuel consumption can be reduced; hot air exhaust of the carbonization furnace can be used as material delivery airflow to preheat materials, and the energy loss can be reduced; and the internal and external simultaneous circulation and heating can be realized due to the arrangement of the inner combustion chamber and the outer combustion chamber, and the rate of utilization of circulating energy is high.

Description

technical field [0001] The invention relates to a carbonization equipment, in particular to a self-circulation heating straw carbonization furnace. technical background [0002] Crop straw is an excellent biomass energy, and has a large output every year. In the past, due to the lack of utilization of crop straw, it was usually stacked in the field and burned directly, which is not only wasteful, but also pollutes the environment. With the research and development of biomass energy, crop straw, as an excellent biomass energy, can be carbonized at high temperature to achieve multiple purposes. The current straw carbonization equipment generally puts the straw in a high-temperature environment for carbonization, which requires a large amount of fuel to provide heat and consumes a lot of energy; it adopts a closed stove type, and after one feed, it needs to close the carbonization chamber for carbonization, and then carry out the carbonization after the carbonization is complet...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the combustible components in the crops in the existing carbonization equipment are not discharged for utilization, and a large amount of fuel needs to be consumed to provide carbonization heat, and to provide a self-circulating heating straw carbonization furnace. At the same time, the carbonization furnace is also applicable to various carbonization of biomass

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