Sintering waste heat recycling device and method
A waste heat recovery and waste heat boiler technology, which can be used in heating methods, space heating and ventilation, space heating and ventilation details, etc., and can solve problems such as low waste heat recovery rate
Active Publication Date: 2021-10-22
SHOUGANG JINGTANG IRON & STEEL CO LTD
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Problems solved by technology
[0003] Most domestic use of sintering flue gas is to send the heat to the heating station for winter heating after desulfurization and denitrification, and to enter the seawater desalination module for seawater desalination in summer. The hot air produced by the first to third stages of the sintering ring cooler is used by the waste heat boiler and then discharged through the chimney of the waste heat boiler, and the hot air from the fifth and sixth stages of the sintering ring cooler is directly discharged. This method of recycling waste heat Low recovery rate
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[0032] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.
[0033] figure 1 A sintering waste heat recovery and utilization device provided in an embodiment of the present invention, combined with figure 1 , The recycling device provided by the present invention includes a flue gas heat exchanger 2 , a hot air heat exchanger 4 and a waste heat boiler 6 .
[0034] Among them, the flue gas inlet of the flue gas heat exchanger 2 is connected with the flue gas flue of the sintering machine, the flue gas outlet of the flue gas heat exchanger 2 is connected with the outside world, and the cooling medium inlet of the flue gas heat exchanger 2 is connected with the external cooling water source Connected; the hot air inlet of the hot air heat exchanger ...
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The invention discloses a sintering waste heat recycling device and method. The device comprises a flue gas heat exchanger, a hot air heat exchanger and a waste heat boiler, wherein a flue gas inlet of the flue gas heat exchanger communicates with a sintering machine flue gas flue, and a cooling medium inlet of the flue gas heat exchanger communicates with an outside cooling water source; a hot air inlet of the hot air heat exchanger communicates with a mixed hot air pipeline of the fourth section and the fifth section of a sintering circular cooler, a hot air outlet of the hot air heat exchanger communicates with the outside, a cooling medium inlet of the hot air heat exchanger communicates with the outside cooling water source, and a cooling medium outlet of the hot air heat exchanger, a cooling medium outlet of the flue gas heat exchanger and a hot water inlet of a heat supply station are in communication; and a hot air inlet of the waste heat boiler communicates with a mixed hot air pipeline from the first section to the third section of the sintering circular cooler, and a steam outlet of the waste heat boiler communicates with a first steam inlet of a first seawater desalination assembly.
Description
technical field [0001] The invention belongs to the technical field of sintering waste heat utilization, and in particular relates to a sintering waste heat recycling device and method. Background technique [0002] A large amount of high-temperature flue gas will be generated during the sintering process, and the sintering ring cooler that cools the sintered material surface will also generate a large amount of hot air during the sintering process. These can be collectively referred to as sintering waste heat. Making full use of sintering waste heat can not only realize The energy saving and consumption reduction can also bring a better environmental image to the enterprise. [0003] The domestic use of sintering flue gas is mostly to send the heat to the heating station for heating in winter after desulfurization and denitrification, and to enter the seawater desalination module for seawater desalination in summer. The heat generated by the first to third stages of the sin...
Claims
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IPC IPC(8): F27D17/00F24D19/00F01D15/10
CPCF27D17/004F24D19/00F01D15/10Y02P10/25
Inventor 张庭钰王铁民赵利平王俊岭郭朋刘晓飞李兴涛高昆
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD