Device and method for carbonizing straw

Abstract

The invention relates to a device and a method for carbonizing straw. The device comprises a tunnel kiln type carbonizing furnace body, a heating unit, a smoke dust collecting treatment unit, sintering material boxes and a rail type material carrying cart, wherein the sintering material boxes are arranged in the rail type material carrying cart; the heating unit comprises flame guns, a gas pipeline and a combustion-supporting gas pipeline which are arranged in a hearth; straw devices are arranged in the sintering material boxes in the material carrying cart and are moved to the carbonizing furnace body; after the carbonizing furnace body is closed, gas and combustion-supporting gas are supplied to the flame guns by the gas pipeline and the combustion-supporting gas pipeline in the heating unit, and the flame guns spray flame to heat the hearth; and after the temperature of the hearth is raised to 480 to 550 DEG C and is kept for 5 to 8 hours, the hearth is cooled. According to the carbonizing device, biological straw resources are utilized, and the carbonizing device has the advantages of high carbonizing ratio, low carbon discharge amount, full utilization of resources, high carbonizing efficiency, low energy consumption and the like; and the method for carbonizing the straw is simple in process and environment-friendly and is suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of straw carbonization, in particular to a straw carbonization device and a straw carbonization method. Background technique [0002] Given the depletion of fossil fuel (coal, oil, and natural gas) resources and the CO 2 Excessive emissions, the impact on global climate change, people pay attention to the use of renewable energy materials (various crop grains, straw, residues, wood, etc.). Attempts to carry out biological conversion (such as biogas) and thermochemical conversion of biomass (Biomass) materials, commonly known as pyrolysis (Pyrolysis), to produce renewable and clean energy. Biomaterials can produce solid, gas and liquid products through pyrolysis. According to the purpose, the main products needed can be obtained by controlling the pyrolysis conditions. From the perspective of energy development, it is necessary to convert biological materials into combustible gases, such as CO, H 2 , meth...

AI Technical Summary

Problems solved by technology

Because the stalks of these crops are not processed, it is impossible to automatically feed these materials into the pyrolysis furnace through screw propellers, which makes it difficult to achieve large-scale production

[0005] The energy for heating biological materials used in existing dry-slide pyrolysis systems is generally realized by introducing the gas produced by the pyrolysis and gasification of biological materials itself, but this requires the consumption of a large amount of biomass charcoal, and the carbonization rate is low and greatly increased. Carbon emissions, which is not good for pyrolysis of biomaterials for the purpose of producing black carbon, which is not conducive to environmental protection

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