Combination system for efficiently using waste heat in iron mine sintering cooling process

A technology of cooling process and waste heat, which is applied in the field of high-efficiency utilization system of composite waste heat in iron ore sintering cooling process, which can solve the problems of reducing labor intensity and human hazards, and achieve the effect of increasing power generation, improving quality and reducing heat pollution

Active Publication Date: 2014-03-19
BEIJING ZHINENG XIANGYING ENERGY SAVING & ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The process has a high degree of automation, can maximize the recovery and use of waste heat resources, effectively reduce the labor intensity o...

Method used

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  • Combination system for efficiently using waste heat in iron mine sintering cooling process
  • Combination system for efficiently using waste heat in iron mine sintering cooling process
  • Combination system for efficiently using waste heat in iron mine sintering cooling process

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Embodiment Construction

[0039] An embodiment of a system for efficient utilization of composite waste heat in the iron ore sintering cooling process, see Figure 1 to Figure 6 , the system includes a sintering machine 1 and a ring cooler 2.

[0040] Below the sintering bed of the sintering machine is a flue 1-1, the flue is set corresponding to the length of the sintering bed, and a plurality of flue gas ports 1-2 are vertically connected to the sintering bed longitudinally from the head end to the tail end. As for the flue, the ignition port 1-3 of the sintering bed is set at the head end, and the sintered ore is moved from the head end to the tail end of the sintering bed through a ring cooling trolley. 1-1, the air inlet is connected to the dust collector 3, the induced fan 4 and the chimney 5 in sequence through the pipeline;

[0041] The annular cooler has a sinter cooling bed, and the sinter moves from the head end to the tail end of the cooling bed through a conveyor belt, and a plurality of ...

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Abstract

The invention discloses a combination system for efficiently using waste heat in the iron mine sintering cooling process. The combination system comprises a sintering machine and a circular cooling machine, wherein the sintering machine and the circular cooling machine are longitudinally arranged from head to tail in a fall mode. A waste heat recycling device is arranged in a flue of the sintering machine, hot smoke recycling covers at the top end of the circular cooling machine are connected with a dual-pressure waste heat boiler, the dual-pressure waste heat boiler and the waste heat recycling device are connected to a steam compensation steam-type turbine, the steam compensation steam-type turbine drives an electric generator to generate electricity, and meanwhile a steam standby steam source is connected to a steam inlet of the steam compensation steam-type turbine. According to the combination system, the electric generating technology is combined with the iron mine sintering cooling process, and the generating capacity can reach 25kwh/t-30kwh/t and exceeds the inland existing sintering waste heat electric generating level of 12kwh/t-20kwh/t; the hot air circulation and hot air ignition technology is adopted, the temperature of recycled smoke of the circular cooling machine can be raised by 50 DEG C to 100 DEG C, fuel gas for ignition can be reduced by 5%-10%, and heat pollution and dust pollution to the surrounding air are reduced.

Description

technical field [0001] The invention relates to a high-efficiency utilization system of composite waste heat in the iron ore sintering cooling process, which is a stepwise recovery and comprehensive utilization process of waste heat in the iron ore sintering cooling process, and is a waste heat power generation system using a built-in waste heat boiler in the flue of a sintering machine and a double-pressure waste heat boiler in an annular cooler , The composite waste heat recovery and comprehensive utilization process of hot air ignition. Background technique [0002] At present, the development of the iron and steel industry is facing severe challenges and new development opportunities. The traditional extensive development model has become unsustainable. It is urgently required for the industry and enterprises to focus on energy conservation and emission reduction, actively change the development mode, and use high-tech transformation and upgrade industry technology. Mana...

Claims

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Application Information

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IPC IPC(8): F27D17/00F01K27/00F01D15/10
CPCY02P10/25
Inventor 黄飞刘峰王广文王国臣李占国
Owner BEIJING ZHINENG XIANGYING ENERGY SAVING & ENVIRONMENTAL PROTECTION TECH CO LTD
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