Oxygen rich and pure oxygen scrap preheating system: oxygen rich gas burner, pure oxygen gas burner

1、 Function introduction of scrap preheating system: The scrap preheating technology is applied to a fully continuous scrap preheating and feeding system, which can heat the scrap to 800 ℃ and increase the physical heat of the scrap. In the iron consumption production mode, the scrap ratio of the converter can reach 35-50%.

The converter scrap preheating technology is applied to various steelmaking systems (including converter steelmaking, refining furnace steelmaking, electric furnace steelmaking, intermediate frequency furnace steelmaking, and other forms of steelmaking that require the addition of scrap) to provide scrap preheating, improve scrap ratio, increase production, and improve quality and efficiency.

Process flow: Scrap steel crane lifting → Chain plate machine → Vibration conveyor → Preheating area → Auxiliary burner preheating area → Main burner preheating area → Scrap steel hopper → Battery car → Feeding span → Converter.

2、 Special heating devices for continuous preheating system of scrap steel: blast furnace gas burner, converter gas burner, and combustion control system. The heating source is converter gas, blast furnace gas, or a portion of converter gas mixed with blast furnace gas. It uses a dedicated blast furnace gas burner (with special introduction) designed and produced by Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. for the scrap preheating system, converter gas burner, and a complete combustion control system. It has the functions of automatic ignition, flameout cut-off, temperature automatic control, and installation of explosion-proof devices for electrical control components in the gas area.

Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. and its professional gas automation control company, Zhengzhou Deste Automation Equipment Co., Ltd., jointly build a waste steel preheating gas combustion control system, making technical contributions to reducing energy consumption and increasing production for large steel enterprises. The burner (blast furnace gas nozzle, converter gas nozzle) is directly installed in the high-temperature heating zone without a combustion furnace, simplifying equipment, reducing land occupation, and reducing investment.

The heating section is equipped with an arched insulation cover, and the burners (blast furnace gas burner, converter gas burner) are arranged on the opposite side. The combustion flame avoids scrap steel and reduces oxidation loss. Uniformly heat scrap steel through high-temperature airflow. The heating system is divided into a heating zone and a preheating zone. The heating zone mainly uses radiation heating, and the preheating zone preheats the scrap steel through the high-temperature flue gas generated in the heating zone. The continuous preheating system for scrap steel, with a preheating temperature of 1100 degrees in the high-temperature section, can quickly raise the temperature of scrap steel, and the scrap steel temperature can be increased by 650 within 20 minutes. By real-time monitoring the temperature of the high-temperature heating zone, flue gas preheating zone, and flue gas discharge outlet, the outlet material temperature is controlled and the gas output is adjusted. Improve energy utilization to 80%. The material trough of the heating conveyor is dynamically controlled and equipped with a water cooling system to reduce stress and deformation of the conveying trough through cooling effect.

Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. is responsible for on-site design, thermal energy technology calculation, burner production, automation control system integration, installation, debugging, and training of dedicated burners for scrap preheating system (blast furnace gas burner, converter gas burner). If using the shaft furnace form, Zhongwei Company is responsible for designing and manufacturing the combustion furnace and large heat exchanger (which can be in the form of a heat storage ball structure). For more details, please call (WeChat synchronization): 15713691937.

Zhongwei Environmental Protection Group (Zhengzhou Zhongwei Environmental Protection Equipment Co., Ltd. and Zhengzhou Deste Automation Equipment Co., Ltd.) has undertaken the "general contracting" project of large-scale industrial furnaces, bakers, burners, automation automation control systems, desulfurization and denitrification equipment, and online monitoring devices both domestically and internationally.

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