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Method and application equipment for desulphurization in furnace of boiler with desulphurization ash in semi-dry process

A semi-dry desulfurization and boiler furnace technology, applied in the field of desulfurization, can solve the problems of wasting absorbents, etc., and achieve the effects of reducing desulfurization costs, solving difficulties in being used, and solving waste

Inactive Publication Date: 2012-08-01
LAN TIAN ENVIRONMENTAL ENGINEERING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a semi-dry desulfurization ash used in boiler furnace desulfurization method and equipment used, it can recycle dry desulfurization ash, effectively solve the problem of wasting absorbent, and make desulfurization ash more convenient Utilize, effectively reduce desulfurization cost of power plant

Method used

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  • Method and application equipment for desulphurization in furnace of boiler with desulphurization ash in semi-dry process
  • Method and application equipment for desulphurization in furnace of boiler with desulphurization ash in semi-dry process
  • Method and application equipment for desulphurization in furnace of boiler with desulphurization ash in semi-dry process

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Embodiment 1

[0023] Embodiment 1 of the present invention: a method for using semi-dry desulfurization ash in a boiler furnace for desulfurization in a boiler. Dry desulfurization ash is produced during semi-dry flue gas desulfurization, and an additional installation is installed on the pipeline for the warehouse pump to transport the dry desulfurization ash to the ash store One pipeline, the dry desulfurization ash is sent to the furnace of the boiler through the additional pipeline for desulfurization reaction in the furnace.

[0024] The composition of the dry desulfurization ash includes desulfurization reaction products, unconsumed absorbent and flue fly ash. The dry desulfurization ash is transformed into fly ash after participating in the desulfurization reaction in the furnace.

[0025] A device used to realize the aforementioned semi-dry desulfurization ash used in the desulfurization method in the boiler furnace, including a boiler 1, a dust collector 2, a semi-dry desulfurizati...

Embodiment 2

[0026] Embodiment 2 of the present invention: as figure 1 with figure 2 As shown in the figure, a semi-dry desulfurization ash is used for desulfurization in the boiler furnace. During the semi-dry flue gas desulfurization, dry desulfurization ash is produced, and a pipeline is added to the pipeline for the warehouse pump to transport the dry desulfurization ash to the ash store. After the desulfurized ash enters the added pipeline, it is first transported to the intermediate ash bin through the pipeline, then transported from the intermediate ash bin to the metering bin through the pipeline, and finally sent from the metering bin to the jet pump, which is sprayed into the boiler by the jet pump. To the coal mouth.

[0027] The composition of the dry desulfurization ash includes desulfurization reaction products, unconsumed absorbent and flue fly ash. The dry desulfurization ash is transformed into fly ash after participating in the desulfurization reaction in the furnace. ...

Embodiment 3

[0032] Embodiment 3 of the present invention: as figure 1 with figure 2 As shown in the figure, a semi-dry desulfurization ash is used for desulfurization in the boiler furnace. During the semi-dry flue gas desulfurization, dry desulfurization ash is produced, and a pipeline is added to the pipeline for the warehouse pump to transport the dry desulfurization ash to the ash store. After the desulfurized ash enters the added pipeline, it is first transported to the intermediate ash bin through the pipeline, then transported from the intermediate ash bin to the metering bin through the pipeline, and finally sent from the metering bin to the jet pump, which is sprayed into the furnace of the boiler .

[0033] The composition of the dry desulfurization ash includes desulfurization reaction products, unconsumed absorbent and flue fly ash. The dry desulfurization ash is transformed into fly ash after participating in the desulfurization reaction in the furnace.

[0034] A device ...

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Abstract

The invention discloses a method and application equipment for desulphurization in a furnace of a boiler with desulphurization ash in a semi-dry process. The dried desulphurization ash is produced in the semi-dry process, a path of pipe is additionally arranged on the pipeline of transporting the dried desulphurization ash by the pump, and the dried desulphurization ash is delivered to a furnace of the boiler or the coal feeding port on the boiler to carry out in-furnace desulphurization reaction. The dried desulphurization ash can be recycled in the method provided by the invention, thus the problem of wasting absorbent is solved, the desulphurization ash is more facilitated for utilization, and the desulphurization cost of a electric power plant is effectively lowered.

Description

technical field [0001] The invention relates to a method for using semi-dry desulfurization ash in a boiler furnace for desulfurization and equipment used, belonging to the technical field of desulfurization. Background technique [0002] With the development of science and technology, human beings' demand for energy is getting higher and higher, and the consumption of natural resources is getting faster and faster, so people start to advocate energy conservation and emission reduction. [0003] In the prior art, in the flue gas purification process of the power plant, the semi-dry flue gas desulfurization will generate dry desulfurization ash, which is discharged from the bag filter and then transported to the warehouse pump, and then the warehouse pump transports the dry desulfurization ash To the ash storehouse, since the dry desulfurization ash contains desulfurization reaction products, fly ash and unreacted absorbent, the unreacted absorbent accounts for 10% to 30%, wh...

Claims

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Application Information

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IPC IPC(8): B01D53/81B01D53/48B01D50/00
Inventor 孙琦明范祥子应隆飚毛庚仁
Owner LAN TIAN ENVIRONMENTAL ENGINEERING CO LTD
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