cathode carbon block

Pubdate: 06-30 2021

What is the waste residue of the cathode carbon block?

The cathode carbon block is a conductive material used in self-baking electrodes such as calcium carbide furnaces and ferrosilicon furnaces. Its main technical features are made by adding metallurgical coke powder and pitch as the main raw material of waste slag discharged from aluminum smelting; the bottom paste is a carbonaceous refractory material that is integrally tamped at the bottom of calcium carbide furnace, ferroalloy furnace, and ferrosilicon furnace, mainly based on cathode The waste residue is the main raw material by adding metallurgical coke powder, dehydrated coal tar, sulfur powder and diesel oil.

What does the mechanical strength of the cathode carbon block include

The mechanical strength of cathode carbon block includes compressive strength, flexural strength and tensile strength

The height of the cathode carbon block refers to the height from the upper end of the electrode clamp to the top of the cathode carbon block. If the cathode carbon block is too high, the coarse and fine particles in the cathode carbon block are prone to stratification, or the electrode cylinder is swollen due to the excessive pressure of the paste column. If the cathode carbon block column is too low, the pressure of the paste column is too small and the packing performance is poor. , It is difficult to obtain dense electrodes. The cathode carbon block is consumed too quickly. The proper height of the cathode carbon block column is beneficial to improve the quality of electrode sintering and reduce consumption. Cathode carbon block is the conductive electrode of various submerged electric furnaces, and it is an indispensable product in industrial production.

Our CGM Carbon Factory has looked through many domestic and foreign materials, but did not find any materials specifically discussing the mechanical strength of the cathode carbon block. In order to promote the improvement of the quality of the cathode carbon block, and for the manufacturer of the cathode carbon block to master the performance of the cathode carbon block, we CGM Carbon special discusses the mechanical strength of the cathode carbon block. In the national standard of the cathode carbon block, there is no mechanical strength quality index of the cathode carbon block, only the quality index of the compressive strength of the cathode carbon block. The mechanical strength itself includes the compressive strength and has a certain relevance, as the national standard It may not be possible to put everything into the quality standard, but the national standard is the standard more than ten years ago. The cathode carbon block industry has developed rapidly over the past ten years. When our factory specifically discusses the strength of the cathode carbon block, it is not allowed. Do not make a comparative discussion. The mechanical strength of cathode carbon block includes compressive strength, flexural strength and tensile strength.

The mechanical strength of carbon products is anisotropic, that is, the composition of the raw material particles of carbon products is different in the horizontal and vertical directions. Due to the production method of the cathode carbon block, we will not discuss the anisotropy of the mechanical strength of the cathode carbon block here. The composition of the raw materials of the cathode carbon block, that is, different raw materials, the particle size and ratio of the raw materials, the thickness and ratio of the powder, and the content of coal pitch all affect the mechanical strength of the cathode carbon block. We will discuss it separately. . Here we only discuss the influence of the temperature change of the cathode carbon block on the mechanical strength during the sintering process.


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