Industrial waste heat refers to the steel, petrochemical, building materials, non-ferrous metal industry production lines produce a lot of heat. Waste heat power generation technology refers to the use of high grade heat recovery and concentrated into electricity for business use of technology. Would use cogeneration as energy-saving and consumption reduction in China, one of the important measures for achieving cycle development, and given strong support, expanding of application of waste heat power generation technology in China at present, but in the field of Ferroalloy, calcium carbide, sensible heat and waste heat recovery of flue gas and other power generation technology is still quite lacking.


Submerged arc furnace waste heat recovery power generation technology without affecting the quantity and quality of the product and does not increase primary energy (coal, oil or natural gas) consumption under the premise would companies waste heat is converted into secondary energy, electricity for internal use. Power costs only 8~15% of power grid pricing, not only increase the comprehensive utilization of resources, while reducing the cost of production of the enterprise, also avoids power network overhaul, power cuts and thunderstorm weather factors such as blackouts caused economic damage to enterprises. This high level of automation, easy operation, easy maintenance and reliable operation, without secondary pollution.


Submerged arc furnace waste heat recovery power generation system is the product of sensible heat recovery of submerged arc furnace, CO in flue gas waste heat recovery, flue gas combustion integrated heat recovery and low-pressure cryogenic power generation technology in submerged arc furnace with integrated heat recovery generation system. Characteristic this product is mainly reflected in the confined tunnel kiln with hot air used in ore furnace heat recovery power generation; CO combustion applications in flue gas heat recovery generation flue gas waste heat recovery power generation uses three levels of dust removal technology, elimination of coarse, medium and fine particles in flue gases and fine particles of dust, flue gas emissions reach the national standard.


Integrated waste heat recovery power generation system of submerged arc furnace using PLC control system to industrial machine monitoring and management software to automate controls make the sensible heat of submerged arc furnace, flue gas heat recovery system for safe, reliable, sustainable and stable operation, to heat recovery and power generation, realize energy saving and consumption reducing, smoke, dust and landscaping requirements. Products are widely applied to Ferroalloy, calcium carbide, iron and steel, cement, electrolytic aluminum, copper, phosphorus and other energy waste heat power generation project.


Submerged arc furnace waste heat recovery power generation systems including water treatment systems, in addition to water systems, waste heat recovery systems, turbo-generator, heat engineering instrument and automatic protection and alarm system. Integrated waste heat recovery power generation system of submerged arc furnace main technical principles:


Sealed hot wind tunnel kiln used in ore furnace heat recovery power generation. The power generation system utilizing hot air tunnel kiln, place baked goods in tunnel kiln with hot air and sealed with dry air on the sensible heat of the heat exchange, enter the waste heat boilers to generate steam, make sensible heat recovery more thoroughly.


CO combustion applications in flue gas heat recovery power generation. The power system using stove will flue gas introduced which, full burning off flue gas in the of CO, through II times distribution wind makes flue gas temperature from 1400 ℃ reduced to 800 ℃, hot Exchange Hou conveying to heat boiler, generated industrial steam for power, resorted to furnace flue gas control in 200 ℃, again by bags Duster row into atmospheric, both solution has heat boiler of security problem, while and extended has heat boiler and bags Duster of using life. Make the total power generation system running more secure.


Flue gas waste heat recovery power generation uses three levels of dust removal technology for the first time, complete removal of coarse, medium and fine particles in flue gases and fine particles of dust, flue gas emissions reach the national standard. The power system used three level dust technology, will production process in the produced of large flue gas by introduction wind machine conveying to gravity Duster for a level dust, removed >50um dust particles; by high temperature cyclone Duster for II level dust, removed >10um,<50um dust particles; II level dust Hou of flue gas conveying to stove, by once distribution wind, full burning off flue gas in the of CO, again by II times distribution wind makes flue gas temperature reduced to 600 ℃-800 ℃, sent to heat boiler for hot Exchange, Smoke temperature at 200 ° c; flue gas (CO gas recovery) to the bag for three-stage dust, remove the >0.2um,<10um dust particles so that flue gas emissions reach the national standard.


At present, energy conservation has become China's basic State policies, Ferroalloy, calcium carbide, cement industry is a typical energy-intensive industries, where waste heat recovery power generation industry to promote technology to reduce energy consumption and improve energy efficiency. On October 20, 2007 cancelled. In the case of increases in electricity costs, Ferroalloy, calcium carbide, cement waste heat recovery power generation project, such as the payback period will be further reduced, the technology will have better development prospects.