Tar residue uniform feeding device and tar residue feeding method

Abstract

The invention relates to a tar residue uniform feeding device and a tar residue feeding method. The device comprises a housing, an upper gate arranged at a feed inlet of the top of the housing, a lower gate arranged at a discharge port of the bottom of the housing and a double-shaft material blockage-preventing mechanism arranged in the housing. The double-shaft material blockage-preventing mechanism is composed of two parallelly arranged vertical shafts, and blades are separately arranged on the two vertical shafts along the height direction; and the two vertical shafts are driven by a motor which is correspondingly arranged on the outer side of the housing to rotate in the same direction or in the opposite direction. The device provided by the invention is mounted in the bottom of tar residue storage tank. By adopting a vertical discharging structure, the upper and lower gates are opened and closed alternately, so that layered tar residues in the tar residue storage tank are discharged continuously and uniformly, and therefore, gravity type uniform feeding of the tar residues is achieved.

Description

technical field [0001] The invention relates to the technical field of coal coking, in particular to a tar residue uniform feeding device and a tar residue feeding method. Background technique [0002] During the coke oven production process, the raw coal gas produced contains a large amount of small solid particles such as coal powder, semi-coke powder, coke powder, and carbon black. A large amount of tar residue is produced. Since the tar residue is a hazardous substance, it cannot be discharged directly, and further treatment is required. [0003] The current treatment method for tar residue is usually back-mixing coking. According to different coal types and production processes, the composition of tar residue produced by different coking plants is slightly different, but generally its state is that the upper layer is watery and the middle layer is mucus, so the lower layer is more viscous and difficult to flow. When the bottom of the tar slag bin is unloaded by screw...

AI Technical Summary

Problems solved by technology

When the bottom of the tar slag bin is unloaded by screw conveyor or gate gravity unloading, there will be problems that the viscous material at the bottom layer is not easy to unload, and the upper layer of watery liquid is completely discharged in an instant.

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