The invention discloses an organic Rankin
waste heat power generation method based on high-temperature highly-dusty
smoke of a metallurgical furnace. The organic Rankin
waste heat power generation method based on the high-temperature highly-dusty
smoke of the metallurgical furnace is characterized in that the
smoke of the metallurgical furnace is discharged from a fourth hole and passes through a water-cooling sliding sleeve so as to be mixed with
cold air, the smoke mixed with the
cold air enters a
settling chamber, enters a sinter board dust catcher and then enters a heat-storage temperature uniformizing device after dust in the smoke is removed, the smoke enters a flow uniformizing heat exchange chamber after heat-storage temperature uniformization is conducted on the smoke, heat is released by the high-temperature smoke, so that heat exchange is completed, and the smoke is pressed into an exhaust cylinder through a main fan so as to be discharged to the
atmosphere; heat of the smoke is absorbed by circulating water in a
heat exchanger at the same time, a vapor-water mixture is formed and enters an
evaporator, heat is released, the heat of the vapor-water mixture is absorbed by organic working medium liquid, so that working medium steam is formed, the working medium steam expands and acts in an organic
turbine with a steam supplying port, and then a power generator is driven to generate power. The organic Rankin
waste heat power generation method based on the high-temperature highly-dusty smoke of the metallurgical furnace is also characterized in that R227ea is taken as a circulating organic working medium. By the adoption of the organic Rankin waste
heat power generation method based on the high-temperature highly-dusty smoke of the metallurgical furnace,
heat energy in the smoke can be recovered to the maximum extent so as to be directly converted into high-grade
electric energy, the heat efficiency is improved by 23%-28% compared with single-stage
evaporation type organic Rankin circulation, and environmental friendliness is high.