CIE Successful XuSteel Group Phase 3 Power Generation Project by Equipment Technical Transformation for Sintering Waste Heat Power Generation Technology
On April 18, Jiangsu, XuSteel Group's Phase 3 Power Generation Project by Equipment Technical Transformation for Sintering Waste Heat Power Generation Technology developed by CIE (Hereinafter referred to as "XuSteel Phase 3 Power Generation Project") was finished successfully, and grid-connected power generation was achieved.
The project adopts the furnace flue gas waste heat boiler technology and built-in flue pipe waste heat boiler technology developed independently by CIE. Furnace flue gas waste heat boiler technology is the first of its kind in China to install the high temperature superheater and evaporator of the waste heat boiler directly on top of the annular cooler, which is in direct contact with the waste heat of the exhaust gas and can utilize both radiant heat and convection heat without temperature drop. Compared with other waste heat boilers on the market, the set temperature of boiler superheater is nearly 20℃ higher, and there is no pipeline temperature drop, no need of dust collector, which reduces the size of the device and greatly lowers the investment cost. The waste heat utilization efficiency is increased by more than 12%.
Built-in flue pipe waste heat boiler technology utilizes the high temperature exhaust gas at the end of the large flue pipe of the sintering machine and has a modular design with a heat exchange part built into the flue pipe at the end of the sintering machine.
In addition, the waste heat turbine generator set also adopts a one-touch initiate-stop system, which can use machine to make judgment original made by personnel during the start-up of turbine, reduce personnel workload, lower operating costs, and improve the level of turbine automation.
It is estimated that after the project is formally put into operation, the annual power generation will reach about 59.4 million kilowatt hours, which can save about 7,300 tons of standard coal every year, greatly reducing the production cost of the sinter mine and reduce the purchased electricity consumption, thus bringing considerable economic and environmental benefits to the owner.