Microwave pyrolysis furnace suitable for dry distillation of coal material

Abstract

The invention discloses a microwave pyrolysis furnace suitable for dry distillation of a coal material, and belongs to the field of dry distillation furnaces of coal materials. The microwave pyrolysisfurnace suitable for dry distillation of the coal material includes a furnace body, a material adding hopper located above the furnace body and a material unloading hopper located below the furnace body; and the microwave pyrolysis furnace is characterized in that the inner side wall of the furnace body is provided with a plurality of material beds arranged up and down and used for storing the coal material, the material beds obliquely extend from the inner side wall of the furnace body to the center of the furnace body, each material bed is provided with a plurality of material dropping openings capable of dropping the coal material, a rotating device capable of spreading the coal material on one material bed is arranged above each material bed, a plurality of microwave generators are arranged below each material bed, and the upper end of the furnace body is provided with a first gas outlet. The microwave pyrolysis furnace provided by the invention can not only reduce processing energy consumption and production costs, but also improve heating efficiency and a yield.

Description

technical field [0001] The invention relates to the technical field of coal dry distillation furnaces, in particular to a microwave pyrolysis furnace suitable for coal dry distillation. Background technique [0002] my country's energy storage structure is characterized by more coal and less oil, of which low-rank coal with poor quality accounts for about 45%. Due to its poor thermal stability, low ignition point, strong reactivity, easy oxidation and spontaneous combustion, it is easy to crack after drying Pulverization, so that the processing application is subject to certain restrictions. [0003] At present, the main methods of upgrading and processing low-rank coal include pyrolysis, molding, drying and dehydration, etc. Among them, pyrolysis, as a main processing method, has attracted much attention and attention. The traditional heating method is to use high-temperature medium and electric heating. The heat is transferred from the surface of the material to the inside...

AI Technical Summary

Problems solved by technology

[0005] The application of existing microwave pyrolysis furnaces in industrial production has high microwave power, high energy consumption, high investment and production costs, or due to the unreasonable internal structure design of the furnace itself, the microwave penetration of materials is limited, and even the wavelength of microwaves is limited. Very short is not enough to heat the material, thus affecting the processing capacity of the furnace

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