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Improved waste heat power generation system for cement industry

A technology for cement industry and waste heat power generation. It is used in cement production, waste heat treatment, machinery/engine, etc. It can solve problems such as the reduction of unfavorable solid particles, the large resistance of flue gas removal, and the unfavorable removal and utilization of high-heat flue gas. The effect of heat exchange efficiency and stability, improving economy and improving utilization rate

Inactive Publication Date: 2013-01-09
GUANGDONG KAINENG ENVIRONMENTAL PROTECTION & ENERGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

For example, a cement kiln waste heat power generation system announced in Chinese Patent No. 200720038566.9, in this cement waste heat power generation system, the air intake of the kiln head boiler 13 is a top-down air intake method, which is not conducive to the flue gas The reduction of solid particles makes it difficult to reduce the wear of solid particles in the flue gas on the kiln head boiler
In the middle of the clinker cooler 1, there is only one exhaust port 5, which has a large resistance to exhaust gas, which is not conducive to the exhaust and utilization of high-heat flue gas, resulting in low heat exchange efficiency and stability of the system
In addition, the cement kiln waste heat power generation system is not economical

Method used

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Embodiment Construction

[0012] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0013] refer to figure 1 , The preferred embodiment of the present invention discloses a highly improved waste heat power generation system for the cement industry, including a clinker cooler 1, a kiln tail boiler 3, a kiln head boiler 5, a water supply system 6, and a steam turbine 7. The clinker cooler 1 sends flue gas to the kiln tail boiler 3 and the kiln head boiler 5, and the kiln tail boiler 3 and the kiln head boiler 5 cooperate with the water supply system 6 to generate steam for the steam turbine 7 to do work.

[0014] The clinker cooler 1 cools the cement clinker and generates a large amount of hot flue gas. The clinker cooler 1 has a feed end 11 and a discharge end 12 , a front air outlet 13 is provided near the feed end 11 , ...

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Abstract

The invention discloses an improved waste heat power generation system for the cement industry. The improved waste heat power generation system comprises a clinker cooler, a kiln front boiler, a kiln tail boiler and a steam turbine, wherein the kiln front boiler and the kiln tail boiler respectively comprise an evaporator, a superheater and a steam pocket. Flue gas generated by the clinker cooler is respectively conveyed to the kiln front boiler and the kiln tail boiler, the kiln front boiler and the kiln tail boiler are respectively provided with a vertical structure, and the kiln front boiler and the kiln tail boiler share an economizer and a high-temperature superheater. Preheated water is respectively conveyed to the kiln front boiler and the kiln tail boiler by the economizer, the steam temperature of the kiln front boiler and the kiln tail boiler is adjusted by the high-temperature superheater, steam conveyed into the steam turbine is low in temperature difference or the same in temperature, the waste heat power generation system is small in occupied area, convenient to arrange, high in boiler heat efficiency and economical, and the kiln front boiler is low in abrasion.

Description

[0001] technical field [0002] The invention relates to a power generation system, in particular to an improved waste heat power generation system for cement industry. [0003] Background technique [0004] In the cement production industry, it is very common to use the waste heat generated in the production of cement to generate electricity. For example, a cement kiln waste heat power generation system announced in Chinese Patent No. 200720038566.9, in this cement waste heat power generation system, the air intake of the kiln head boiler 13 is a top-down air intake method, which is not conducive to the flue gas The reduction of solid particles makes it difficult to reduce the wear of solid particles in the flue gas on the kiln head boiler. The middle part of the clinker cooler 1 is provided with only one air outlet 5, and the resistance of flue gas removal is large, which is not conducive to the removal and utilization of high-heat flue gas, resulting in low heat exchang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F01K11/02
CPCY02P10/25Y02P40/121
Inventor 宋纪元
Owner GUANGDONG KAINENG ENVIRONMENTAL PROTECTION & ENERGY
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