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Control method of header system coke oven flue gas recovery system

A flue gas recovery and control method technology, which is applied in the field of heat recovery coke ovens, can solve problems such as violation of environmental protection, environmental pollution, and waste of waste heat resources, so as to save expensive costs, improve stability and reliability, and reduce The effect of footprint

Pending Publication Date: 2022-04-22
福建三钢闽光股份有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the waste heat boiler or desulfurization system is overhauled, the flue gas is directly discharged from the high-temperature chimney through the bypass pipe, but the sulfur content of the flue gas without desulfurization is as high as 800-1200mg / m 3 , direct discharge not only causes great pollution to the surrounding environment, but also wastes a lot of waste heat resources, which is contrary to the current environmental protection requirements

Method used

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  • Control method of header system coke oven flue gas recovery system
  • Control method of header system coke oven flue gas recovery system
  • Control method of header system coke oven flue gas recovery system

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Embodiment Construction

[0038] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0039] refer to figure 2 , a coke oven flue gas recovery system with a main tube, including a coke oven group 1, a boiler group 2, a flue gas main pipe 3 and a desulfurization device 4; each boiler group 2 is connected to at least one coke oven group 1; the flue gas main pipe 3. There are at least two flue gas inlets and at least two flue gas outlets; each flue gas inlet is connected to a boiler group 2, and each flue gas outlet is connected to a desulfurization device 4. Each boiler group 2 cools the high-temperature flue gas generated by the coke oven group 1 into low-temperature flue gas and then discharges it into the flue gas main pipe 3 to join, and then the flue gas main pipe 3 diverts it to each desulfurization device 4 for desulfurization treatment. When one of the boiler groups 2 or desulfurization device 4 needs maintenance, the other boiler ...

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Abstract

The invention discloses a control method of a header system coke oven flue gas recovery system. The control method comprises the following steps: 1, discharging flue gas generated by a coke oven group into a boiler group for waste heat recovery treatment; 2, the flue gas treated by the boiler group is gathered in a flue gas main pipe through a flue gas inlet; and 3, the flue gas gathered in the flue gas mother pipe is shunted to each desulfurization device through each flue gas outlet to be subjected to desulfurization treatment until reaching the standard, and then is discharged. The flue gas header system is innovatively introduced for flue gas waste heat recovery and desulfurization treatment of the coke oven, and when one boiler group or desulfurization device needs to be overhauled, other boiler groups and desulfurization devices can still continue to operate, so that flue gas generated by other coke oven groups can be effectively treated in time, and the energy consumption is reduced. And the defects in the prior art are overcome.

Description

technical field [0001] The invention relates to the technical field of heat recovery coke ovens, in particular to a control method for a coke oven flue gas recovery system of a main tube. Background technique [0002] At present, with the progress and development of society, people's awareness of ecological environment protection has increased, and at the same time, higher requirements have been put forward for coke oven flue gas waste heat recovery and desulfurization systems. Such as figure 1 As shown, in the prior art, the flue gas produced by two of the four coke ovens is usually collected into one flue gas pipe, and the flue gas produced by the remaining two coke ovens is collected into another flue gas pipe, and finally the two flue gas The gas pipes are merged into the same waste heat boiler and desulfurization system. When the waste heat boiler or desulfurization system is overhauled, the flue gas is directly discharged from the high-temperature chimney through the...

Claims

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Application Information

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IPC IPC(8): B01D53/34B01D53/48F22B1/18
CPCB01D53/343B01D53/346B01D53/48F22B1/18
Inventor 吴建红
Owner 福建三钢闽光股份有限公司
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