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Flue gas dust-removal mercury-removal desulfurizing system

A desulfurization system and flue gas technology, applied in the separation of dispersed particles, chemical instruments and methods, combined devices, etc., can solve the problems of ineffective removal of gas-phase mercury, large differences in physical and chemical properties of mercury, etc.

Inactive Publication Date: 2014-03-26
JIANGSU XIONGYUE PETROLEUM MECHANICAL EQUIP MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The physical and chemical properties of different forms of mercury are quite different, so the traditional removal technology for liquid mercury cannot effectively remove gas phase mercury in flue gas

Method used

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  • Flue gas dust-removal mercury-removal desulfurizing system
  • Flue gas dust-removal mercury-removal desulfurizing system

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Embodiment

[0016] Such as figure 1 and figure 2 As shown, the flue gas dust removal, mercury and desulfurization system in the present invention is mainly composed of a flue gas temperature control pipe 101, a flue gas oxidation tower 102, a flue gas dust removal device 103, a mercury adsorption chamber 104, and an ammonia water spray pipe 105 connected in sequence. .

[0017] The flue gas temperature control pipe 101 is mainly composed of a smoke guide pipe and cooling fins arranged on the outer wall of the smoke guide pipe.

[0018] The flue gas oxidation tower 102 is mainly composed of a flue gas oxidation tower body and a chlorine gas nozzle arranged inside the flue gas oxidation tower body.

[0019] The mercury adsorption chamber 104 is provided with bromine-loaded activated carbon blocks, and the mercury adsorption chamber 104 is provided with a flue gas outlet for discharging the flue gas after mercury removal into the ammonia water spray pipe 105 .

[0020] The ammonia water ...

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Abstract

The invention relates to a flue gas dust-removal mercury-removal desulfurizing system. The system comprises a flue gas temperature control pipe, a flue gas oxidizing tower, a flue gas dust-removal device and a mercury adsorption chamber, which are connected sequentially. The flue gas dust-removal mercury-removal desulfurizing system is to carry out physical filtration and electrostatic adsorption to effectively filter, settle and separate out coarse and fine particles and dust in the high-temperature flue gas for several times, and initially remove large-granular mercury from the flue gas to facilitate reducing the load of the follow-up flue gas mercury-removal device. When the mercury is removed, firstly the temperature of the flue gas in the temperature control pipe is controlled at 140 DEG C; the chlorine gas is jet to oxidize the flue gas to generate gas-phase mercury ions; then the gas-phase mercury ions are adsorbed by bromine-loaded activated carbon; the residual mercury and sulfide are completely adsorbed by an ammonia water spray manner; at last, ammonium sulfate and ammonium chloride generated through the ammonia water spray manner are prepared into a solid chemical fertilizer. The whole process is short and simple; the mercury removal effect is good.

Description

technical field [0001] The invention relates to a waste flue gas dedusting demercuration and desulfurization treatment device. Background technique [0002] my country is one of the few countries in the world that use coal as the main energy source. Coal accounts for more than 70% of my country's primary energy production and consumption. The emission of combustion waste gas such as sulfur dioxide and nitrogen oxides has formed a huge environmental pollution. , It is imperative to fundamentally control the pollution caused by the discharge of sulfur dioxide and nitrogen oxides. [0003] Because a large amount of flue gas and fly ash will inevitably be produced in industrial production, and the flue gas also contains a large amount of fine particle dust, the direct discharge of these dusts will cause serious pollution to the environment, cause varying degrees of damage to the ecological environment, and bring harm to people. hazards to health and life. Environmental protecti...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D50/00B01D53/48B01D53/64
Inventor 徐向永
Owner JIANGSU XIONGYUE PETROLEUM MECHANICAL EQUIP MFG
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