Primary crushing method of coal-series needle coke

Abstract

The invention relates to the field of primary crushing of needle coke (green coke), and particularly relates to a primary crushing method of coal-series needle coke. The primary crushing method is characterized in that a multi-cone hammer head is driven by a full-station mechanical arm provided with an impaction hammer to impact and crush tower-discharged green coke in a free state. The multi-cone hammer head is in an integrated structure, a drill rod is arranged at one end of the multi-cone hammer head, and a crushing head is arranged at the other end of the multi-cone hammer head and is provided with circular conical teeth and square conical teeth. Compared with the prior art, the primary crushing method of coal-series needle coke and the device adopted by the method, disclosed by the invention, have the following advantages that: (1) the problem of device appearance selection of large or ultralarge crushed material in the coal-series needle coke (the tower-discharged green coke) is solved, and the investment of a crushing device is reduced largely; (2) an impaction crushing manner is suitable for anisotropic structure characteristics of the needle coke, and is also beneficial for improving the quality of the needle coke; (3) high-efficiency transmission of impaction energy is ensured and the crushing work efficiency is improved due to a unique structure of the multi-cone hammer head; and (4) the full-station (in a three-dimensional space and five freedom degrees) mechanical arm meets station requirements during operation and is convenient to capture objects to be hammered.

Description

technical field [0001] The invention relates to the field of primary crushing of needle coke (green coke), in particular to a method and device for primary crushing of coal series needle coke. Background technique [0002] Coal-based needle coke is a high-quality carbon material, which has obvious flow texture on the outside, layered structure inside, needle-like or fibrous microstructure, large aspect ratio, good orientation, and good electrical conductivity. Excellent, long and thin needle-shaped particles after crushing, it is the high-quality main raw material for manufacturing high-power and ultra-high-power electrodes for electrometallurgy. It has been completely dependent on imports for a long time. In recent years, the research and development of coal-based needle coke has made breakthrough progress, and industrial scale production has basically been realized on the basis of completing semi-industrial tests. [0003] At present, the industrialization of coal-based n...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a primary crushing method and device for coal-based needle coke, which overcomes the deficiencies of the prior art and solves the problem of large and super-large pieces of coal-based needle coke being restricted by the size of the entrance of the crushing equipment when selecting the raw coke in the tower. Difficult problems, adapt to industrial production requirements, reduce labor intensity

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