CGM Online

 Electrode paste manufacturing includes such production processes as medium crushing and screening, grinding, batching, kneading and molding cooling. ① Medium crushing screening The project is equipped with a medium crushing and screening system for calcined anthracite. The calcined anthracite is fed by electromagnetic vibrating feeder, and then sent to a double-layer horizontal vibrating screen and a single-layer horizontal vibrating screen by belt conveyor and bucket elevator. After screening, the materials with particle size greater than 10mm are returned to the intermediate bin, and then fed by electromagnetic vibrating feeder to the double roller crusher. Re sieving after medium crushing. 10-6mm and 6-3mm grain size materials can be directly into the corresponding batching bin, or can be returned to the double roller crusher to be finely crushed to less than 3mm, which is convenient for flexible production adjustment. There are 3 kinds of particle size materials, i.e. 10-

 Before filling, the electrode paste shall be broken into 80 ~ 100mm small pieces, so that the electrode paste can pass between the two ribs smoothly. If the particle size is too large, the electrode paste suspension fault is easy to occur; If the particle size is too small, it is easy to cause paste spraying. It is better to buy the finished electrode paste. If the material supplied by the manufacturer is qualified, it can be directly filled. The powder of broken electrode paste is reduced, the utilization rate of electrode paste is improved, and the cost of calcium carbide is reduced. Use a forklift to transport the electrode paste to the carbide furnace with a trolley or special tools, and use an electric hoist to lift the electrode paste into the electrode barrel. Pay attention to lifting * during filling. 　　When installing the electrode paste, pay attention not to scatter the electrode paste on the equipment outside the electrode barrel, so as to avoid the electric ignition a

 1. Calcining. Both petroleum coke and pitch coke need to be calcined, and the calcining temperature should reach 1350. C, to fully remove the volatile matter contained in the carbonaceous raw materials, and improve the true density, mechanical strength, and conductivity of the coke. 2. Crushing, screening and batching. The calcined carbonaceous raw material is crushed and sieved into aggregate particles of specified size, part of the coke is ground into fine powder, and then weighed according to the formula to form a dry mixture of various particles. 3. Kneading. Under the heating state, the quantitative dry mixture of various particles and the quantitative binder are stirred and mixed and kneaded to form a plastic paste. 4. Forming. Under the action of external pressure or high-frequency vibration, the paste is pressed into a green electrode with a certain shape and higher density. 5. Roasting. Put the green electrode in a special roasting furnace, and use metallurgical coke powder t

 The graphite material is mainly composed of polycrystalline graphite. Graphite is a multi-layer laminated crystal with a hexagonal planar network structure between carbon atoms. Although graphite material is an inorganic non-metallic material, it has good thermal and electrical conductivity, and at the same time has a thermal expansion coefficient far lower than that of metal, a high melting point and chemical stability, which makes graphite materials very useful in industrial applications. High value. Graphite materials are chemically inert in non-oxidizing media and have good corrosion resistance. Except for strong acids and strong oxidizing media, graphite materials are not corroded by other acids, alkalis, and salts, and hardly react with organic compounds. . Graphite material is also a kind of high temperature resistant material. Graphite will not melt under high temperature, but at 3350 under normal pressure. C began to slowly sublimate into gas. The strength of general material