Industry News

- July 24, 2019

Classification and description of carbon products(2)

4. Graphite heat exchanger

An impervious graphite product for heat exchange prepared by processing artificial graphite into a desired shape and then impregnating and solidifying with a resin, which is a heat exchange device processed by artificially impermeable graphite as a matrix, mainly Used in the chemical industry. include:

(1) a block-hole heat exchanger;

(2) a radial heat exchanger;

(3) falling film heat exchanger;

(4) Column tube heat exchanger.

5. Carbon electrode class

A conductive electrode prepared by calcining a carbonaceous material such as anthracite and metallurgical coke (or petroleum coke) as a raw material, coal tar pitch as a binder, and not by graphitization. It is not suitable for electric furnaces that smelt high-grade alloy steel. include:

(l) Multi-ash electrode (electrode produced with anthracite, metallurgical coke, pitch coke);

(2) Regeneration electrode (electrode produced from artificial graphite or natural graphite);

(3) carbon resistance rods (ie carbon bricks);

(4) Carbon anode (prebaked anode produced from petroleum coke);

(5) Roasting the electrode blank.

6. Carbon blocks

Anthracite and metallurgical coke are used as main raw materials, and coal pitch is used as binder, which is prepared by raw material preparation, compounding, mixing, molding, roasting and machining. The blast furnace carbon block is used as a high temperature and corrosion resistant material for lining the blast furnace lining; the bottom carbon block, the side carbon block and the electric furnace block are used for the aluminum electrolytic cell and the iron alloy electric furnace. include:

(1) blast furnace carbon block;

(2) aluminum tank carbon block (bottom carbon block and side carbon block);

(3) Electric furnace carbon block.

7. Carbon paste

The petroleum coke, anthracite, and metallurgical coke are used as the main raw materials, and the coal bitumen is used as the binder. Some electrode pastes are used for various continuous self-baking electric furnaces as conductive electrodes; some are used for continuous self-baking aluminum tanks as anodes for conductive anodes; some are used for blast furnace masonry and refractory mud Stitch and fine stitching. Although the self-baked carbon block used in the blast furnace has different uses, it is similar to the production process of the paste product, and is temporarily included in the paste product. include:

(1) anode paste;

(2) electrode paste (including standard, non-standard electrode paste);

(3) Bottom paste (including ash, less ash paste);

(4) Closed paste (including ash, less ash, closed paste);

(5) Other pastes (including coarse seams, fine seam pastes, self-baking charcoal bricks, etc.).

8. Non-standard carbon and graphite products

This refers to various shaped carbon and graphite products modified by further processing of carbon and graphite products. Including shovel type anode, fluorine anode and various specifications of bismuth, plate, rod, block and other special products.

9. Impervious graphite

This refers to various graphite shaped articles made by impregnation and processing of resins and various organic materials, including a base block of a heat exchanger.

10. Electric carbon products

This refers to products such as carbon rods and brushes.