High efficient electric furnace steel-making system

Abstract

The invention relates to a steel-making device, specifically to a high efficient electric furnace steel-making system, comprising an electric furnace possessing a flue gas outlet, a settling chamber which communicates with the flue gas outlet of the electric furnace, an adjunct warehouse, and a heat exchange pipeline which is disposed on the bottom of the settling chamber through a support. Natural air is inputted into the heat exchange pipeline through a blower fan, then hot-air which outputs from the heat exchange pipeline is sent into the adjunct warehouse to heat and dry adjuncts, and finally the adjuncts are used for the electric furnace steel-making. The high efficient electric furnace steel-making system is simple and compact in structure, is not influenced by the fluctuation of flue gas temperature, is operated to accomplish the cyclic utilization of heat energy and reduce the production cost of enterprises to the maximum, and is worth being popularized in the steel-making industry.

Description

technical field [0001] The invention relates to steelmaking equipment, in particular to a high-efficiency electric furnace steelmaking system. Background technique [0002] At present, electric furnace steelmaking is quite common in our country. The electric furnace will produce a large amount of high-temperature flue gas during the production process. If this part of the flue gas is discharged directly, it will inevitably cause pollution to the surrounding environment and waste heat. At present, most of the electric furnace dust removal systems operating in China only solve the environmental pollution caused by electric furnace production, but do not solve the problem of heat waste. The dust removal suction port of the ultra-high power electric furnace adopts the combination of the roof cover and the fourth hole exhaust. The normal smelting is mainly based on the fourth hole exhaust, and the fourth hole exhaust is directly extracted from the furnace to make the furnace pro...

AI Technical Summary

Problems solved by technology

[0003] In the existing electric furnace steelmaking system, there are two main types of utilization of heat energy from the flue gas outlet of the electric furnace: scrap steel preheating and use of waste heat to generate steam. It only has a good preheating effect on scrap steel on the surface. The latter uses waste heat to generate steam. Due to periodic changes in the steelmaking process, the generated steam sometimes disappears, which is not easy to use.

Images