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Sintering waste heat power generation device with external superheating supplementary combustion and waste heat utilization method

An external, superheated technology, applied in the steam generation method using heat carrier, waste heat treatment, machine/engine, etc., can solve the problems of unstable inlet flue gas temperature of waste heat boiler and large fluctuation of superheated steam parameters. The effect of improving power generation capacity, stable steam parameters, and ensuring stable operation

Active Publication Date: 2017-04-12
HUNAN ZHONGYE CHANGTIAN ENERGY CONSERVATION & ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of unstable inlet flue gas temperature of waste heat boiler and relatively large fluctuation of superheated steam parameters

Method used

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  • Sintering waste heat power generation device with external superheating supplementary combustion and waste heat utilization method
  • Sintering waste heat power generation device with external superheating supplementary combustion and waste heat utilization method
  • Sintering waste heat power generation device with external superheating supplementary combustion and waste heat utilization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0165] like figure 1As shown, a sintering waste heat power generation device with external superheating and supplementary combustion includes a generator 1, a steam turbine 2, a condenser 3, a superheating supplementary combustion furnace 4, a sintering exhaust pipe waste heat boiler 5, and an annular cooler waste heat boiler 6 , wherein: the low-parameter superheated steam outlet of the waste heat boiler 6 of the annular cooler is connected to the steam intake port 202 of the steam turbine, the high-parameter saturated steam output pipe L2a of the waste heat boiler 6 of the annular cooler is connected to the high-parameter saturation of the waste heat boiler 5 of the sintered exhaust pipe After the steam output pipeline L2b merges, it is further connected to the steam inlet 402 of the superheated afterburning furnace 4 via the saturated steam delivery pipeline L2, and the steam outlet 403 of the superheated afterburning furnace 4 is connected to the main steam inlet 201 of the...

Embodiment 2

[0186] Basically similar to Example 1.

[0187] Such as figure 1 As shown, a sintering waste heat power generation device with external superheating and supplementary combustion includes a generator 1, a steam turbine 2, a condenser 3, a superheating supplementary combustion furnace 4, a sintering exhaust pipe waste heat boiler 5, and an annular cooler waste heat boiler 6 , wherein: the low-parameter superheated steam outlet of the waste heat boiler 6 of the annular cooler is connected to the steam intake port 202 of the steam turbine, the high-parameter saturated steam output pipe L2a of the waste heat boiler 6 of the annular cooler is connected to the high-parameter saturation of the waste heat boiler 5 of the sintered exhaust pipe After the steam output pipeline L2b merges, it is further connected to the steam inlet 402 of the superheated afterburning furnace 4 via the saturated steam delivery pipeline L2, and the steam outlet 403 of the superheated afterburning furnace 4 i...

Embodiment 3

[0194] According to the connection device in Example 1, water passes through the economizer 501 of the sintered exhaust pipe waste heat boiler, the evaporator 502 of the sintered exhaust pipe waste heat boiler, and the steam drum 503 of the sintered exhaust pipe waste heat boiler to generate saturated steam. The water passes through the high-parameter economizer 605 of the annular cooler waste heat boiler, the high-parameter evaporator 606 of the annular cooler waste heat boiler, and the high-parameter steam drum 607 of the annular cooler waste heat boiler to generate saturated steam. The saturated steam passes through the steam superheater 401 of the superheating supplementary combustion furnace 4 to generate superheated steam.

[0195] The condensate passes through the condensate water heater 601 of the waste heat boiler of the ring cooler, the low-parameter evaporator 602 of the waste heat boiler of the ring cooler, the low-parameter steam drum 603 of the waste heat boiler o...

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Abstract

The invention discloses a sintering waste heat power generation device with an external overheating afterburner. The sintering waste heat power generation device comprises a generator 1, a turbine 2, a condenser 3, an overheating afterburning furnace 4, a sintering smoke vent waste heat boiler 5 and a circular cooler waste heat boiler 6. Low-parameter overheating steam generated by the circular cooler waste heat boiler 6 is connected with a turbine steam refilling port 202; high-parameter saturated steam generated by the circular cooler waste heat boiler 6 and the sintering smoke vent waste heat boiler 5 enters a main steam inlet 201 of the turbine through the overheating afterburning furnace 4, a rotating shaft 204 of the turbine drives the generator 1, and a steam outlet 203 of the turbine is connected with the condenser 3. The sintering waste heat power generation device with the external overheating afterburner solves the problems that the waste heat boiler is instable in intake smoke temperature and overheating steam parameter fluctuation is big.

Description

technical field [0001] The invention relates to a waste heat power generation system, in particular to a sintering waste heat power generation device with external superheating supplementary combustion and a waste heat utilization method. Background technique [0002] In the current utilization of sintering waste heat in iron and steel plants, the method of generating superheated steam from sintering waste flue gas is basically used. Since most of the waste heat is a low-grade thermal resource and is unstable, when using it to generate steam for power generation, the steam parameters fluctuate greatly, which affects the life of the equipment and the running time. For a normal sintering ring cooler, when the flue gas temperature is relatively normal, the air temperature in the high-temperature section can reach 320-370°C, and the air temperature in the low-temperature section can reach 250-310°C; but when the air intake design is not good or the sintering fluctuates, the air ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D17/00F22B1/18F01D15/10
CPCY02P10/25
Inventor 胡风华徐忠彭杰周响球陈卓
Owner HUNAN ZHONGYE CHANGTIAN ENERGY CONSERVATION & ENVIRONMENTAL PROTECTION TECH CO LTD