Industrial carbon-containing powder resource utilization method

Abstract

The present invention discloses an industrial carbon-containing powder resource utilization method, wherein industrial carbon-containing powder is added with a molding binder, and automation production processes such as material preparing, transporting, stirring, molding, and drying are performed to process and mold into the carbon particle reducing agent, the steelmaking particle recarburizer or the auxiliary material meeting the smelting application requirements in metallurgy, calcium carbide, industrial silicon, carbon and other industries. The method of the present invention has characteristics of solving of the problem of difficult carbon-containing dust utilization, high carbon-containing powder resource utilization rate, production cost reducing, significant economic benefits, significant social benefits, and the like.

Description

technical field [0001] The invention relates to a method for resource utilization of industrial carbon-containing powder, in particular to industrial carbon-containing powder and molding binder, which are processed into carbonaceous particle reducing agent and granular recarburizer for steelmaking through automatic molding process method. technical background [0002] According to statistics, in 2012 my country's metallurgy, coking, calcium carbide, silicon and other industries consumed more than 400 million tons of energy such as coke, semi-coke, petroleum coke, charcoal, and carbon. However, in the process of production, crushing, screening, transshipment, loading and unloading, and dust removal, about 15% of carbon-containing powder is produced, while metallurgy, chemical calcium carbide, silicon industry and other industries mainly use lump coke, semi-coke, charcoal, petroleum coke, Graphite is used as charge or reducing agent, and requires high carbon content, low ash ...

AI Technical Summary

Problems solved by technology

Because the particle size of these carbonaceous powders does not meet the requirements of the production process, they cannot be used directly, resulting in a reduction in the utilization rate of carbonaceous powders

Because these industrial carbon-containing powders have large specific surface area, large voids, strong water absorption, small particle size, and no cohesion, it is difficult to use them. Except for some coke powders used in metallurgical enterprises to produce sinters, most enterprises can only use them as If it is used as low-grade fuel for electric coal and civilian use or treated cheaply, the loss per ton is more than 600 yuan

Some enterprises pile up these carbon-containing powders in the open air and fly around in the wind and sun, causing serious environmental pollution

At present, there are many craftsmen who use coke powder to process molded coke, such as Chinese patent CN1097021A, a method for manufacturing casting mold coke with coke powder, CN103274389A, a carbonaceous reducing agent for ferrosilicon smelting using industrial waste residue, and CN101319159A Synthetic coke block and its preparation method; Chinese patent CN101230434A is a production method of a high-activity, granular carbonaceous reducing agent; because there are pitch or tar components in these formed cokes, the secondary pollution to the environment has been aggravated during the carbonization process; in addition Have adopt inorganic water glass, bentonite, lime to make binding agent to process carbon-containing powder, as the method of Chinese patent CN1250682C coke powder pressure ball, CN101760276B a kind of binding agent and its application method for forming coke powder, CN103351900A- A process for preparing metallurgical coke from pulverized coal pyrolysis coke powder. Due to the addition of inorganic materials in these patents, the ash content of the molded particles increases and cannot meet the requirements of industrial applications.