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Desulfurization and denitration system based on sensor monitoring, parameter acquisition and parameter feedback

A technology for desulfurization and denitrification and feedback parameters, which is applied in the field of desulfurization and denitrification systems, can solve problems such as the increase of ammonia escape, and achieve the effects of convenient adjustment and simple structure.

Pending Publication Date: 2021-12-10
JIANGSU LVDOU ENVIRONMENTAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the prior art, in order to increase the flue gas denitrification rate, the amount of ammonia injection is generally increased. Although simply increasing the amount of ammonia injection can improve the denitrification efficiency to a certain extent, it will also cause part of the ammonia to be unable to be adsorbed by activated carbon in time. , resulting in the problem of increased ammonia slip

Method used

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  • Desulfurization and denitration system based on sensor monitoring, parameter acquisition and parameter feedback
  • Desulfurization and denitration system based on sensor monitoring, parameter acquisition and parameter feedback

Examples

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Embodiment 1

[0029] see Figure 1-Figure 2 As shown, the present invention provides a desulfurization and denitrification system based on sensor monitoring, collection and feedback parameters, and the system mainly includes the following structures arranged in sequence along the flue gas flow direction:

[0030] Air intake pipe 3; pre-processing tower 1; gas delivery pipe 4; post-processing tower 2; exhaust pipe 5.

[0031] specific:

[0032] The air inlet pipe 3 is connected to the air inlet side of the pretreatment tower 1 and is used for inputting flue gas to be treated into the pretreatment tower 1 .

[0033] In the pretreatment tower 1, a desulfurization bed 11, an atomized ammonia injection mechanism 12, an activated carbon denitrification bed 13, and a demisting drying bed 14 are sequentially arranged along the flow direction of the flue gas; wherein, the flue gas enters through the intake pipe 3, and then The desulfurization process is completed through the desulfurization bed 11...

Embodiment 2

[0038] This embodiment is a further preferred embodiment of the first embodiment above, and this embodiment includes the structure disclosed in the first embodiment above, and also includes:

[0039] The first sensor 6 installed on the gas delivery pipe 4 is used to collect the ammonia concentration in the flue gas passing through the intake pipe 3, and the post-processing tower 2 regulates the number of openings of the ammonia suction channel 22 according to the ammonia concentration.

[0040] specific:

[0041] A feed bin 23 is provided at the top of the aftertreatment tower 2, and the feed bin 23 is used to introduce an ammonia adsorbent that does not absorb ammonia into each ammonia absorption channel 22;

[0042] A recovery bin 24 is arranged at the bottom of the aftertreatment tower 2, and the recovery bin 24 is used to accept the ammonia adsorbent that has adsorbed ammonia discharged from the ammonia absorption channel 22 in an open state;

[0043] The interior of the ...

Embodiment 3

[0049] This embodiment is a further preferred embodiment of the above-mentioned embodiment two, which includes the structures disclosed in the above-mentioned embodiment one and embodiment two in this embodiment, and also includes:

[0050] One side of the pretreatment tower 1 is connected with an ammonia supply assembly 7, the ammonia supply assembly 7 includes an ammonia water pump and an ammonia water tank, and the ammonia water pump is connected between the atomizing ammonia injection mechanism 12 and the ammonia water tank, and is used for spraying ammonia according to a preset Quantitatively send the ammoniacal liquor stored in the ammoniacal liquor tank into the atomized ammonia injection mechanism 12;

[0051] An ammonia water recovery area is provided at the bottom of the pretreatment tower 1, the inlet pipe 3 is located between the ammonia water recovery area and the desulfurization bed 11, and an aqueduct is connected between the ammonia water recovery area and the a...

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Abstract

The invention belongs to the technical field of flue gas treatment, and discloses a desulfurization and denitrification system based on sensor monitoring, parameter acquisition and parameter feedback. The system comprises a treatment device, a gas conveying pip and a monitoring device; the treatment device comprises a pretreatment tower and a post-treatment tower which are sequentially arranged along a flue gas flowing direction, wherein the pretreatment tower realizes flue gas desulfurization and denitrification based on ammonia spraying, the post-treatment tower realizes flue gas deamination based on adsorption; a plurality of first porous plates are fixed in the post-treatment tower, and a plurality of ammonia absorption channels are formed by separation based on the plurality of first porous plates; the gas conveying pipe is connected between the gas outlet side of the pre-treatment tower and the gas inlet side of the post-treatment tower and is used for conveying desulfurized and denitrated flue gas into the post-treatment tower; and the monitoring device comprises a first sensor mounted on the gas conveying pipe, the first sensor is used for collecting the concentration of ammonia gas in the flue gas passing through a gas inlet pipe, and the post-treatment tower regulates and controls the opening number of the ammonia absorption channels according to the concentration of the ammonia gas.

Description

technical field [0001] The invention belongs to the technical field of flue gas treatment, and in particular relates to a desulfurization and denitrification system based on sensor monitoring, collection and feedback of parameters. Background technique [0002] At present, the activated carbon desulfurization and denitrification integrated technology mostly sprays ammonia in the inlet flue gas or the flue gas after the desulfurization bed. After the flue gas and ammonia are mixed, they enter the activated carbon bed, and the NO in the flue gas X Under the catalysis of activated carbon, a reduction reaction occurs with the injected ammonia gas to generate N 2 And water, so as to achieve the purpose of desulfurization and denitrification. In addition, in the prior art, in order to increase the flue gas denitrification rate, the amount of ammonia injection is generally increased. Although simply increasing the amount of ammonia injection can improve the denitrification efficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/60
CPCB01D53/78B01D53/60
Inventor 陈中海葛栋
Owner JIANGSU LVDOU ENVIRONMENTAL ENG CO LTD
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