Baking-free carbon rammed mass and preparation method thereof

Abstract

The invention discloses a baking-free carbon rammed mass and a preparation method thereof, aiming to provide a baking-free carbon rammed mass which has high carbon content, abrasion resistance, corrosion resistance and convenient construction and conforms to requirements on energy conservation and environment protection. The adopted technical scheme of the invention is as follows: the carbon rammed mass comprises particle raw materials, micropowder raw materials, modified bonding agent and phenolic resin; after being applied, the invention is proved that the baking-free rammed mass in the invention has primary ramming time of 15-25min, thus greatly lowering labor strength and saving labor time; baking is not performed, and tapping can be performed after ramming is finished, thus saving baking cost; the benzopyrene content is no more than 0.05%, thus having no environmental pollution; a primary iron flux period is long (50,000-100,000ton), thus improving service life; and the carbon rammed mass has the advantages of high carbon content, abrasion and corrosion resistance, convenient construction and the like, saves energy and protects environment, and is a substitute of iron trough castables.

Description

technical field [0001] The invention relates to the field of refractory materials, and is suitable for ramming materials for iron troughs in front of iron-making blast furnaces, slag shielding materials, ramming parts above the center line of water-cooled pipes at the bottom of blast furnaces, and gaps between blast furnace linings and steel shells. Tamping and ramming of the leveling layer on the bottom sealing plate of the blast furnace. Background technique [0002] In the prior art, it is used for the ramming material for the iron trough in front of the iron-making blast furnace, the slag shielding device material, the ramming material above the center line of the blast furnace bottom water cooling pipe, and the gap between the blast furnace lining and the steel shell. The ramming material and the ramming material of the leveling layer on the bottom sealing plate of the blast furnace have the following technical defects: [0003] 1. The labor intensity is high (the shor...

AI Technical Summary

Problems solved by technology

[0003] 1. The labor intensity is high (the shortest time for one pouring is 12-8 hours);

[0004] 2. Long baking cycle (96 hours-168 hours);

[0005] 3. It is easy to stick to iron and cause waste of pig iron;

[0006] 4. High content of carcinogen benzopyrene (1-3%);