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Compound circulating jet fluidized bed smoke desulfurization method and reaction tower

A compound circulation and reaction tower technology, which is applied in chemical instruments and methods, separation methods, and dispersed particle separation, can solve the problems of insufficient internal mixing of absorbents, large loads of flue gas particles, and poor separation effects, and achieve improved Effects of calcium utilization rate, dust concentration reduction, and load reduction

Inactive Publication Date: 2007-01-10
SHENZHEN HUAXIA QIANGTING ENVIRONMENT ENGCO
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Problems solved by technology

[0005] Traditional circulating fluidized bed flue gas desulfurization devices generally use dust removal and separation devices. Due to the large load of flue gas particles, the separation effect is not good and the energy consumption is also high.
Although a certain amount of reflux is formed in the tower, the turbulent flow is not intense, and the internal mixing of the absorbent is not sufficient

Method used

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  • Compound circulating jet fluidized bed smoke desulfurization method and reaction tower
  • Compound circulating jet fluidized bed smoke desulfurization method and reaction tower
  • Compound circulating jet fluidized bed smoke desulfurization method and reaction tower

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Embodiment Construction

[0034] Combined cycle jet fluidized bed flue gas desulfurization method, the flue gas from the flue gas pipe 16 passes through the Venturi device 1 from the bottom of the compound cycle jet reaction tower 2 and the slaked lime powder sent by the blower 11 and the slaked lime powder system 14 passes through the slaked lime The powder inlet pipe 10 is mixed into the turbulent reaction zone 17 at the lower part of the reaction tower 2 and mixed with the circulating desulfurization ash from the circulating desulfurization ash return pipe 8 for preliminary reaction, and then mixed with the compound circulation injection device 15 located above the circulating desulfurization ash return pipe 8 The water mist sprayed from the lower water inlet pipe 12 is combined for further reaction, and the reacted gas-material mixture passes through the compound cycle injection device 15 and enters the upper turbulent reaction zone 18 and combines with the water and steam sprayed by the compound cyc...

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Abstract

This invention provides a compound recycle injection flow bed smoke desulfuration method and its reaction tower. The smoke passes Venturi device and enters the compound recycle injection reaction tower bottom with absorption agent and then into the onflow reaction area of the down part of the reaction tower. Then smoke lifts to the tope onflow reaction area through compound recycle injection device ring. The vortex dust removal system and electric dust removal system get purified gas and is exhausted from funnel after reaction. The shell top and down ends of reaction tower are separately connected with smoke exit hole and gas-in hole.

Description

technical field [0001] The invention relates to a flue gas desulfurization method and special equipment, in particular to a flue gas desulfurization method used in power plants, coking plants and the like. Background technique [0002] Sulfur dioxide, sulfur trioxide, and hydrogen sulfide are the main pollutants that cause environmental pollution such as temperature and humidity effects and acid rain. my country consumes a huge amount of coal for power plants and coking plants every year, and the flue gas produced by a large amount of coal combustion contains a large amount of Sulfur dioxide, sulfur trioxide and hydrogen sulfide and other pollutants have seriously affected the development of the national economy and the living environment of the people. [0003] Flue gas desulfurization can be divided into wet method, dry method and semi-dry method. Wet desulfurization uses lime slurry as the desulfurizing agent, which requires a relatively complicated pulping system, which ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/83
Inventor 马春强张全明王菁魏尚林丁素红马林
Owner SHENZHEN HUAXIA QIANGTING ENVIRONMENT ENGCO
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