Sintered power generation by waste heat system with by-product gas afterburning

A technology of by-product gas and waste heat power generation, which is applied in waste heat treatment, machine/engine, lighting and heating equipment, etc., can solve the problems of not increasing the exhaust gas temperature as much as possible, low superheated steam parameters, and low thermal efficiency of the system, so as to increase supplementary combustion The effect of flue gas volume, increasing steam parameters and increasing flue gas temperature

Inactive Publication Date: 2010-08-25
江苏东能环保能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing sintering waste heat power generation system has the following problems: ① The residual air from the high-temperature exhaust gas outlet 17 and the low-temperature exhaust gas outlet 18 of the cooler 1 is mixed and then enters the superheater 3, so that the temperature of the exhaust gas cannot be raised as much as possible.
②The exhaust gas temperature of cooler 1 is low, so the superheated steam parameters are low, the thermal efficiency of the system is low, and the power generation is small

Method used

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  • Sintered power generation by waste heat system with by-product gas afterburning
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  • Sintered power generation by waste heat system with by-product gas afterburning

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Embodiment 1

[0013] The structure of this embodiment is shown in Figure 2. The sintering waste heat power generation system with by-product gas supplementary combustion includes a cooler 1, a waste heat boiler 16, a steam drum 8, a steam turbine 9, a generator 10, a condenser 11, and a cooling tower. 12. Condensate pump 13, deaerator 14 and boiler feed water pump 15. Cooler 1 is provided with three exhaust gas outlets, which are the high-temperature exhaust gas outlet 23 located in the high-temperature zone, the medium-temperature exhaust gas outlet 22 located in the medium-temperature zone, and the exhaust gas outlet located in the low-temperature zone. Low-temperature exhaust gas outlet 21, combustion furnace 26, high-temperature superheater 24, low-temperature superheater 25, evaporator 4 and economizer 5 are arranged in the waste heat boiler 16 from top to bottom, and a combustion furnace 26 of the waste heat boiler 16 is provided with The exhaust gas inlet 27 connected to the high-temp...

Embodiment 2

[0019] The structure of this embodiment is shown in Figure 3, and the difference from Embodiment 1 is that a combustion furnace 26, a high-pressure superheater 29, a high-pressure evaporator 30, a high-temperature economizer 31, Low-pressure superheater 32, low-pressure evaporator 33 and low-temperature economizer 34, steam drum is divided into high-pressure steam drum 35 and low-pressure steam drum 36, boiler feed water pump 15 is connected with the inlet of low-temperature economizer 34, low-temperature economizer 34 The outlet is connected to the inlet of the high-temperature economizer 31 and the water inlet of the low-pressure steam drum 36, the water inlet of the low-pressure evaporator 33 is connected to the water outlet of the low-pressure steam drum 36, and the outlet of the low-pressure evaporator 33 is connected to the vapor-liquid of the low-pressure steam drum 36. The two-phase inlets are connected, the steam inlet of the low-pressure superheater 32 is connected wi...

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Abstract

The invention relates to a residual heat power generation system which is a power generation system with by-product gas supplemental combustion by sintering residual heat. The power generation system comprises a cooling machine, a waste heat boiler, a steam drum, a steam turbine, a boiler feed pump, an induced draft fan, an air blower and a chimney. A combustion hearth, a high-temperature superheater, a low-temperature superheater, an evaporator and an economizer are sequentially arranged on the waste heat boiler from top to bottom; the outlet of the high-temperature superheater and the steaminlet of the steam turbine are connected with each other by a pipeline; the waste heat boiler is provided with a sintering waste gas inlet and a by-product gas inlet; and the upper part of the cooling machine is provided with a high-temperature waste gas outlet, a middle-temperature waste gas outlet and a low-temperature waste gas outlet. The residual heat power generation system can greatly increase the temperature of the smoke and the temperature and the pressure of the overheated steam at the inlet of the steam turbine, and can improve the power generation capability.

Description

technical field [0001] The invention relates to a waste heat power generation system, in particular to a sintering waste heat power generation system with supplemental combustion of by-product gas. Background technique [0002] The existing sintering waste heat power generation system is shown in Figure 1, including a cooler 1, a waste heat boiler 16, a boiler feed water pump 15, a deaerator 14, a steam turbine 9, a generator 10, a condenser 11, a cooling tower 12 and a steam drum 8. There is ore 2 in the cooling machine 1. The cooling machine 1 is equipped with a high-temperature air outlet 17 and a low-temperature air outlet 18. The waste heat boiler 16 is equipped with a superheater 3, an evaporator 4, and an economizer 5 in sequence from top to bottom. . Waste heat boiler 16 imports waste gas from two air outlets 17 and 18 in cooler 1, and the inlet temperature is about 350-400°C. The waste gas enters waste heat boiler 16 after passing through dust collector 19, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D17/00F01K11/02F01K27/02
CPCY02P10/25
Inventor 尧志潘亚林王可黄健文莫蓝彬徐立海顾昊
Owner 江苏东能环保能源科技有限公司
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