Sintering waste heat power generation system waste heat recovery device and application method thereof

Abstract

The invention discloses a sintering waste heat power generation system waste heat recovery device and an application method thereof. The sintering waste heat power generation system waste heat recovery device comprises a waste heat boiler, a circular cooling machine, a gas collection cover, a high-temperature gas inlet smoke pipe, a low-temperature gas inlet smoke pipe, a return air pipe, a circulating fan and a cooling fan, wherein the waste heat boiler is provided with a high-temperature flue gas inlet, a low-temperature flue gas inlet and a flue gas outlet; the circular cooling machine comprises a circular cooling machine high-temperature section and a circular cooling machine low-temperature section; the gas collection cover is arranged on the circular cooling machine; the first end ofthe high-temperature gas inlet smoke pipe is connected to the portion, at the circular cooling machine high-temperature section, of the gas collection cover, and the second end of the high-temperature gas inlet smoke pipe is connected with the high-temperature flue gas inlet; the first end of the low-temperature gas inlet smoke pipe is connected to the portion, at the circular cooling machine low-temperature section, of the gas collection cover, and the second end of the low-temperature gas inlet smoke pipe is connected with the low-temperature flue gas inlet; the first end of the return airpipe is connected with the circular cooling machine high-temperature section, and the second end of the return air pipe is connected with the flue gas outlet of the waste heat boiler; the circulatingfan is arranged on the return air pipe; the cooling fan is arranged on the circular cooling machine low-temperature section. Through the sintering waste heat power generation system waste heat recovery device, the waste heat recovery effect is improved, the power generating capacity is increased, the auxiliary power supply rate of a system is increased, and economic returns are increased.

Description

technical field [0001] The invention belongs to the technical field of boiler waste heat recovery, and in particular relates to a waste heat recovery device and a use method of a sintering waste heat power generation system. Background technique [0002] The waste heat power generation technology of sintered ring (belt) cooler has been widely adopted by iron and steel enterprises. [0003] In the process of realizing the present invention, the inventors found that the prior art has at least the following problems: waste heat recovery and power generation effects are generally poor, and in addition to sintering production factors, waste heat recovery system design and operation mode are unreasonable, resulting in poor waste heat recovery effect the main reason. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a sintering waste heat power generation system based on a waste heat recovery method based on a double flu...

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Problems solved by technology

[0003] In the process of realizing the present invention, the inventors found that the prior art has at least the following problems: waste heat recovery and power generation effects are generally poor, and in addition to sintering production factors, waste heat recovery system design and operation mode are unreasonable, resulting in poor waste heat recovery effect The main reason

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