Adhesive used for preparing cold bond pellets from Ramsbottom carbon powder, preparation method and use method thereof

Abstract

The invention belongs to the technical field of an adhesive used for metallurgy, in particular to an adhesive used for preparing cold bond pellets from Ramsbottom carbon powder, a preparation method and a use method thereof. The adhesive is prepared from the following ingredient in percentage by weight: 3 to 5 percent of aluminium oxide, 5 to 10 percent of sodium silicate, 3 to 10 percent of polyving akohol, 0.5 to 1 percent of crylic acid, 0.5 to 1 percent of calcium oxide and the balance of water, and the weight sum of the ingredients is 100 percent. The method comprises the following steps: firstly, grafting modified polyving akohol through crylic acid; then, adding other ingredients; and finally, preparing the adhesive through high-speed mixing. During the preparation of the pellets, the mixing proportion with the Ramsbottom carbon is controlled at a value about 1 / 20. The invention is suitable for small blast furnace iron manufacture, and can be used for replacing parts of coke in industries such as metallurgical furnace charge, chemical engineering coal gas raw materials, calcium carbide production raw materials and the like.

Description

technical field [0001] The invention belongs to the technical field of metallurgical adhesives, and in particular relates to an adhesive used for preparing cold-set pellets from semi-coke powder and a preparation method thereof. Background technique [0002] Semi-coke is a semi-coke product made of weakly caking or non-caking coal with high volatile content, which is carbonized by medium and low temperature carbonization to remove tar substances in coal and most of the volatilization. Semi-coke is also called semi-coke. Because the flame of this product is blue when it burns, it is called blue charcoal. [0003] As a new type of carbon material, semi-coke (semi-coke) has gradually replaced metallurgical coke and is widely used in calcium carbide, Production of silicon metal, ferroalloy, ferrosilicon, silicon carbide, ferrochrome, fertilizer, etc. However, 30% of coke powder will be produced during production, crushing, transshipment, loading and unloading, and use. Due to ...

AI Technical Summary

Problems solved by technology

[0004]The traditional semi-coke powder cold-setting pellet adhesive is mainly an inorganic dry powder type adhesive, the cost of pelletizing is high, and too much inorganic powder will affect the industrialization of calcium carbide, etc. adverse effects on production

Patent CN 200410056871.1 also mentions the mixed solution type adhesive added with water and other liquids, but does not describe its dry adhesive powder in detail