Sintering machine cooling circulation exhaust gas residual heat utilization system
A technology of sintering machine and waste gas, which is applied in the field of waste heat utilization system of cooling and circulating waste gas of sintering machine, can solve the problems of polluted environment, short service life of waste heat recovery equipment, low recovery rate, etc., achieve efficient recovery, prolong service life and solve pollution problems Effect
Active Publication Date: 2007-09-26
鞍山绿冶热能工程技术有限公司
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Problems solved by technology
[0006] The purpose of the present invention is to provide a sintering machine cooling cycle exhaust gas waste heat utilization system to solve the problems of low recovery rate of waste gas recovery in the prior art, short service life of waste heat recovery equipment, and direct discharge of tail gas into the atmosphere, causing environmental pollution problems , it has the advantages of energy saving and environmental protection, and the energy can be reused
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[0018] The present invention will be further described below in conjunction with accompanying drawing.
[0019] Referring to accompanying drawings 1 and 2, the sintering machine cooling cycle exhaust gas waste heat recovery and utilization system of the present invention includes a multi-tube dust collector 13 connected to the cooling wind box 10, a waste heat boiler, a thermal deaerator 2, a waste gas pipeline 1, and a flue gas The electric control system is characterized in that the waste heat boiler adopts a high-temperature section dual-pressure waste heat boiler recovery system composed of a high-pressure waste heat boiler 4 and a low-pressure waste heat boiler 6, and the exhaust gas inlet of the high-pressure waste heat boiler 4 and the multi-tube dust collector 13 connected, the multi-pipe dust collector 13 is connected with the waste gas outlet 9 of the upper bellows 10 of the sintering machine 16, the waste gas outlet of the high pressure waste heat boiler 4 is connect...
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It relates to a sintering circulation exhaust gas left heat utilization, especially a sintering cooling circulation exhaust gas left utilization system, composed of cooling air blast connected multi tube deduster, left heat boiler, thermal force oxygen remover, smoke electric control system, left heat boiler using high pressure left heat boiler and lower pressure left heat boiler formed high temperature dual pressure left heat boiler recovery system, high pressure left heat boiler connected to the deduster and waste gas output of the wind blast of the sintering machine, thermal deoxygen and low pressure left heat boiler, with it connected with the left heat recovery system, low pressure left heat boiler connected with the lower wind blaster of the sintering machine through draught fan, return wind pipe. It better uses exhaust gas, improves the energy utilization rate.
Description
technical field [0001] The invention belongs to the field of waste heat utilization of circulating waste gas of sintering machine, and in particular relates to a waste heat utilization system of cooling circulation waste gas of sintering machine. Background technique [0002] The energy consumption of the sintering process is second only to ironmaking in iron and steel enterprises. Among the total energy consumption of sintering, the sensible heat taken away by the exhaust gas of the cooler accounts for 20-28% of the total energy consumption. The important link is to recycle the waste heat taken away by the exhaust gas of the cooler. [0003] However, in the past, there were no more than two methods for recovering sintering waste heat: ① one is to reduce the waste gas to below 200°C through the waste heat boiler after dedusting the sintering waste gas, and then the tail gas is naturally discharged into the atmosphere by the induced draft fan through the chimney. ②The other ...
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IPC IPC(8): F27D17/00
CPCY02P10/25
Inventor 金岩刘云王学宾
Owner 鞍山绿冶热能工程技术有限公司