Blast furnace slag flushing water power generation equipment
A technology of blast furnace slag flushing water and power generation equipment, which is applied in mechanical equipment, lighting and heating equipment, furnaces, etc., can solve the problems of waste heat waste of blast furnace slag flushing water, improve power generation efficiency, improve waste heat utilization efficiency, and reduce energy waste Effect
Pending Publication Date: 2020-12-08
WUHAN INSTITUTE OF TECHNOLOGY
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Problems solved by technology
[0004] The technical problem solved by the present invention is to provide a blast furnace slag flushing water power generation equipment to solve the waste heat waste of blast furnace slag flushing water
Method used
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Embodiment Construction
[0023] The present invention will be further described below in conjunction with accompanying drawing:
[0024] The blast furnace slag flushing water power generation equipment of the embodiment of the present invention, such as figure 1 As shown, it includes three end-to-end circulation systems: one is the slag flushing water circulation system, which allows the heat in the high temperature slag to enter the slag flushing water; the other is the chemical heat pump circulation system, which absorbs the heat in the high temperature slag flushing water to realize low temperature heat energy recovery To produce superheated steam at 160°C-200°C; the third is the power generation system, which uses superheated steam to generate electricity; the power generation system can choose Organic Rankine Cycle (Organic Rankine Cycle, ORC for short) or Kalina Cycle (Kalina Cycle, KC for short) . Its specific implementation process is:
[0025] After the low-temperature slag-washing water pa...
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The invention discloses blast furnace slag flushing water power generation equipment. The equipment comprises a slag flushing water circulation system, a chemical heat pump circulation system and a power generation system; the chemical heat pump circulation system comprises a heat absorption reactor, a distillation tower, a condensation separator, a supercharger, an exothermic reactor and a reboiler, wherein the heat absorption reactor, the distillation tower and the reboiler are sequentially connected to form a loop, and the distillation tower, the condensation separator, the supercharger andthe exothermic reactor are sequentially connected to form a loop; the slag flushing water circulation system comprises a blast furnace, a high-temperature slag flushing water tank and a low-temperature slag flushing water tank, and the blast furnace, the high-temperature slag flushing water tank, the heat absorption reactor and the low-temperature slag flushing water tank are sequentially connected to form a loop; and the power generation system is used for converting heat energy generated in the exothermic reactor into electric energy. According to the blast furnace slag flushing water powergeneration equipment, waste heat in high-temperature slag flushing water is recycled and converted into high-grade electric energy, the waste heat utilization efficiency of the blast furnace slag flushing water is improved, energy waste is reduced, and the power generation efficiency is greatly improved through a chemical heat pump.
Description
technical field [0001] The invention belongs to the technical field of waste heat power generation, and in particular relates to a blast furnace slag flushing water power generation equipment. Background technique [0002] The energy consumption of blast furnace smelting accounts for about 59% of the energy consumption of the entire iron and steel production, and is the first energy-consuming process in iron and steel plants. The blast furnace produces a large amount of high-temperature slag during the smelting process. The high-temperature slag is a good cement additive after water quenching treatment. However, a large amount of blast furnace slag washing water is produced during the water quenching process. The temperature of the blast furnace slag washing water is generally 75-95 ℃, and contains a variety of inorganic salts and scale, which is difficult to use, resulting in energy waste. According to statistics, about 0.3-0.35 tons of blast furnace slag will be produced ...
Claims
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IPC IPC(8): F01D15/10F01K11/02F01K25/10F27D17/00F25B30/06F22B1/16C21B3/06
CPCC21B3/06C21B2400/08F01D15/10F01K11/02F01K25/10F22B1/16F25B30/06F27D17/004Y02W30/50Y02P10/20Y02P10/25
Inventor 盖东兴陈博尹洋
Owner WUHAN INSTITUTE OF TECHNOLOGY