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A cement kiln high-efficiency waste heat recovery power generation system and method

A waste heat recovery and power generation system technology, applied in the direction of improving energy efficiency, waste heat treatment, steam superheating, etc., can solve the problems of low heat source quality and waste heat recovery efficiency, so as to improve power generation efficiency and technical and economic indicators, improve taste and waste heat recovery volume effect

Active Publication Date: 2018-03-13
NANJING KESEN KENEN ENVIRONMENT & ENERGY
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Problems solved by technology

[0004] In view of the shortcomings of the existing cement kiln waste heat recovery system, the heat source quality and waste heat recovery efficiency are not high, the present invention aims to provide a cement kiln high-efficiency waste heat recovery power generation system and method, so as to achieve the purpose of improving the utilization rate of cement kiln waste heat recovery

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  • A cement kiln high-efficiency waste heat recovery power generation system and method

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 As shown, a cement kiln high-efficiency waste heat recovery power generation system includes clinker cascade cooling device, waste heat recovery device, steam turbine power generation device, circulating cooling water device and waste gas treatment device.

[0016] Clinker cascade cooling device includes grate cooler 3, inclined bridge hoisting device 4, trolley 4a, material receiving hopper 5, vertical cooling device 6, unloading device 6a, belt transport device 6b, cold air valve 13, low temperature blower 14 The outlet of the rotary kiln 2 is connected to the inlet of the grate cooler 3, the outlet of the grate cooler 3 is connected to the trolley 4a, the trolley 4a is placed on the inclined bridge hoisting device 4, and the inclined bridge hoisting device 4 is connected to the receiving funnel 5, The lower part of the materi...

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Abstract

The invention provides an efficient cement kiln waste heat recovery and power generation system and method, and belongs to the technical field of cement kiln waste heat utilization. The waste heat recovery and power generation system comprises a clinker stepped cooling device, a waste heat recycling device, a turbine power generation device, a cyclic cooling water device and a waste gas treating device. The clinker stepped cooling device comprises a grate cooler and a vertical cooling device. Sensible heat of clinker can be recycled in a stepped mode through the grate cooler and the vertical cooling device. By means of the cooling way, a large quantity of low-temperature waste gas at the tail of a conventional grate cooler is prevented from being directly exhausted, the level of kiln head waste heat resources and the waste heat recovery quantity are improved, and the cement kiln waste heat recovery and power generation efficiency and technical and economical indexes are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery and utilization of cement kilns, and in particular relates to a high-efficiency waste heat recovery power generation system of a cement kiln and a method thereof. Background technique [0002] The waste heat discharged by the cement kiln during the production process mainly has two parts: ①The waste gas discharged from the C1 cylinder of the kiln tail preheater; ②The hot air discharged by the grate cooler at the kiln head. At present, for the above two parts of waste heat, the waste heat boiler at the kiln head and the waste heat boiler at the kiln tail are mainly used to recover and generate superheated steam, and then the superheated steam from the two waste heat boilers is combined through the steam main pipe and sent to the steam turbine generator unit for work Power generation, the power generated can be used for cement plant production. [0003] In the above cement kiln waste he...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D15/10F01K11/02F23J15/02F27B7/38F22G1/00F27D17/00
CPCF01D15/10F01K11/02F22G1/00F23J15/022F23J2217/00F27B7/38F27D17/008Y02P10/25
Inventor 杨宏宜方明刘亚雷刘学炉梁国强陈慧
Owner NANJING KESEN KENEN ENVIRONMENT & ENERGY
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