Device and method for preparation of graphite electrode nipple

Abstract

The invention discloses a device and a method for preparation of a graphite electrode nipple. The preparation device comprises a milling mixer main body, a feeding funnel, milling wheels, a rotating shaft, a gear, a first motor, a uniform screening assembly, a stirring and mixing assembly, a discharge outlet, a discharge pipe and a supporting frame, wherein the inner walls of two sides of the topend of the milling mixer main body are respectively and symmetrically provided with a milling wheel. The preparation device provided by the invention can simultaneously realize multifunctional operations of milling, screening and mixing, realizes integration of the preparation process of a material, and solves the problem of inconvenience due to the needs of selection of a large plurality of processing machines and repeated feeding and discharging for traditional preparation. The preparation method for the graphite electrode nipple is perfected, and the temperature and pressure during preparation are strictly regulated, so the quality of a finished product is guaranteed, and the rate of scrapping is reduced; and through the use of a milling mixer in the preparation method provided by the invention, uniform particle size of a finely-powdered electrode material of the graphite electrode nipple can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of preparation of graphite electrode joints, in particular to a preparation equipment and method for graphite electrode joints. Background technique [0002] Graphite electrode joints are a crucial connection part in the use of graphite electrodes. The joints play a key role in the connection during electrode steelmaking. The quality of the joints is directly related to the use of electrodes in electric furnace steelmaking; graphite electrodes and The connection area formed by the joint is a place with large and complex electrical, thermal and mechanical loads, and it is also a common fracture site. Therefore, the carbon industry at home and abroad pays special attention to the production of graphite electrode joints. At present, graphite electrode joints are often used in the preparation process. Grinding and mixing the fine powder materials of graphite electrode joints in mills, sieving machines, mixers, e...

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Problems solved by technology

[0002] Graphite electrode joints are a crucial connection part in the use of graphite electrodes. The joints play a key role in the connection during electrode steelmaking. The quality of the joints is directly related to the use of electrodes in electric furnace steelmaking; graphite electrodes and The connection area formed by the joint is a place with large and complex electrical, thermal and mechanical loads, and it is also a common fracture site. Therefore, the carbon industry at home and abroad pays special attention to the production of graphite electrode joints. At present, graphite electrode joints are often used in the preparation process. Grinding and mixing the fine powder materials of graphite electrode joints in mills, sieving machines, mixers, etc. There is no integrated grinding and mixing machine for graphite electrode joints preparation on the existing market, which is inconvenient for preparation , need to use more processing machines, it is inconvenient to repeatedly load and unload materials, which affects the production efficiency; the preparation method of graphite electrode joints in the existing market is relatively simple, and the temperature and pressure during preparation are not strictly regulated. During the preparation process, the uniformity of the fine powder material particles of the graphite electrode joint cannot be guaranteed, which will affect the quality of the finished product in the later stage

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