Graphite electrode production process

Abstract

A graphite electrode production process is as follows: (1) taking a raw material, to be more specific, taking baked graphite scrap as the raw material; (2) crushing, to be more specific, using a crusher for crushing the baked graphite scrap; (3) purifying, to be more specific, mixing hydrofluoric acid, sulfuric acid and hydrochloric acid with crushed spheroidizing-formed graphite according to certain formula proportion for purifying; (4) drying, to be more specific, drying the purified spherical graphite; (5) screening, to be more specific, removing larger impurities in the dried spherical graphite; (6) fusing, to be more specific, fully mixing the dried spherical graphite and resin; (7) coating, to be more specific, coating the mixed spherical graphite and resin by reaction; (8) lightly crushing, to be more specific, using a light crusher for beating the sintered anode material into powder; and (9) packing, to be more specific, cooling the material, and packaging; the advantages of the graphite electrode production process are that the process method uses less dosage of sulfuric acid and hydrochloric acid, is less in pollution and high in production efficiency, and compared with the general process, the step is improved by 0.7h.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a graphite electrode production process. Background technique [0002] Graphite is an allotrope of elemental carbon. The periphery of each carbon atom is connected with three other carbon atoms arranged in a honeycomb-like multiple hexagons to form a covalent molecule. Graphite is an electrical conductor because each carbon atom emits an electron and those electrons are free to move. Graphite is one of the softest minerals, and its uses include making pencil leads and lubricants. The traditional graphite electrode processing technology has low product quality stability. At present, the graphite produced by the acid-base method has a low yield and a purity of about 98%-99%, which cannot meet the needs of production. Sodium hydroxide is generally used for alkali, and sulfuric acid, hydrochloric acid, nitric acid, etc. are used for acids. This method pollutes seriously. ...

AI Technical Summary

Problems solved by technology

Traditional graphite electrode processing technology, product quality stability is not high

At present, the graphite produced by the acid-base method has a low yield and a purity of about 98%-99%, which cannot meet the needs of production. Sodium hydroxide is generally used for alkali, and sulfuric acid, hydrochloric acid, nitric acid, etc. are used for acids. This method pollutes seriously. And the purity of graphite produced is low