Ammonia flue gas mixing apparatus used in stern exhaust gas processing system

A technology for exhaust gas treatment and flue gas mixing, which is applied to the separation of dispersed particles, chemical instruments and methods, and separation methods. It can solve problems such as complex structure and unsatisfactory work performance, and achieve good work performance, reasonable structure and low pollution. Effect

Inactive Publication Date: 2012-02-29
顾忠华 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The ammonia flue gas mixing device of the existing marine exhaust gas

Method used

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  • Ammonia flue gas mixing apparatus used in stern exhaust gas processing system
  • Ammonia flue gas mixing apparatus used in stern exhaust gas processing system
  • Ammonia flue gas mixing apparatus used in stern exhaust gas processing system

Examples

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Example Embodiment

[0014] An ammonia flue gas mixing device for a stern exhaust treatment system, comprising an evaporator 2 connected to an ammonia storage tank 1, the evaporator is connected to an ammonia buffer tank 3, the ammonia buffer tank and a desulfurization device 4 flue gas outlet to the gas- The mist eliminator 6 between the gas heat exchangers 5 communicates with each other. The mist eliminator is connected to the cold end inlet of the gas-gas heat exchanger through a pipe, and the cold end outlet of the gas-gas heat exchanger is connected to the SCR denitrification device 7. SCR Non-uniformity coefficient of flue gas velocity at the inlet interface of the first layer catalyst in the denitrification device Less than 15%;, the coefficient of uneven ratio of ammonia to nitrogen Less than 5%; the temperature difference is less than ±10 K; before the inlet of the SCR denitrification device, the temperature difference on the catalyst inlet interface is less than ±1 K; uneven coefficient ...

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Abstract

The invention discloses an ammonia flue gas mixing apparatus used in a stern exhaust gas processing system. The apparatus comprises an evaporator connected to an ammonia storing tank. The evaporator is connected to an ammonia gas buffering tank. The ammonia gas buffering tank communicates with a demister arranged between a flue gas outlet of a desulphurization apparatus and a gas-gas heat exchanger. The demister is connected to a cold end inlet of the gas-gas heat exchanger through a pipeline. The cold end inlet of the gas-gas heat exchanger is connected to an SCR denitrification apparatus, wherein non-uniform coefficient Cvucata of flue gas velocity on a first layer catalyst inlet interface in the SCR denitrification apparatus is smaller than 15%, the ammonia-nitrogen ratio non-uniform coefficient Cvrcata is smaller than 5%, the temperature difference is smaller than +-10K, and the temperature difference at the catalyst inlet interface in front of the SCR denitrification apparatus inlet is smaller than +-1K. The apparatus provided by the invention is characterized in reasonable structure, good working performance and low pollution.

Description

technical field [0001] The invention relates to an ammonia flue gas mixing device of a marine exhaust gas treatment system. Background technique [0002] The existing ammonia flue gas mixing device of the marine exhaust gas treatment system has a complex structure and unsatisfactory working performance. Contents of the invention [0003] The object of the present invention is to provide an ammonia flue gas mixing device for a stern exhaust treatment system with reasonable structure and good working performance. [0004] Technical solution of the present invention is: [0005] An ammonia flue gas mixing device for a stern exhaust treatment system, characterized in that it includes an evaporator connected to an ammonia storage tank, the evaporator is connected to an ammonia buffer tank, and the ammonia buffer tank and the flue gas from the desulfurization device are exported to the gas- The demisters between the gas heat exchangers are connected, and the demisters are conn...

Claims

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Application Information

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IPC IPC(8): B01D53/90B01D53/56
Inventor 顾忠华缪红建
Owner 顾忠华
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