CN207980821U - A kind of mostly de- minimum discharge device of complexity flue gas activated coke - Google Patents
A kind of mostly de- minimum discharge device of complexity flue gas activated coke Download PDFInfo
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- CN207980821U CN207980821U CN201820198145.0U CN201820198145U CN207980821U CN 207980821 U CN207980821 U CN 207980821U CN 201820198145 U CN201820198145 U CN 201820198145U CN 207980821 U CN207980821 U CN 207980821U
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- flue gas
- activated coke
- purifying column
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Abstract
A kind of complicated mostly de- minimum discharge device of flue gas activated coke provided by the utility model, flue gas is successively through phase-change heat-exchanger, pretreater, deduster, the processing of activated coke purifying column, the flue gas processing device is particularly suitable for waste incineration, the sintering machine of steel industry, the flue gas that the coking furnace of coking industry generates, the flue gas processing device can be effectively to waste incineration, the sintering machine of steel industry, the flue gas that the coking furnace of coking industry generates is handled, substantially increase the processing quality of flue gas, and, ingredient of the device to flue gas, temperature, load fluctuation does not require, there is good versatility.Activated carbon can realize that functions, the processing units such as desulphurization and denitration, removing heavy metal, removing dioxin can effectively be handled flue gas, it is ensured that emission of smoke tallies related request.Using phase-change heat-exchanger to flue gas cool-down, caused by not only avoiding direct spray cooling the problems such as fouling, moreover it is possible to carry out heat recovery.
Description
Technical field
The utility model is related to fume treatment auxiliary more particularly to a kind of mostly de- minimum discharge dresses of complicated flue gas activated coke
It sets.
Background technology
With taking place frequently for haze weather, air environmental protection pressure continues to increase, and flue dust, sulfur dioxide, nitrogen oxides are to be formed
The main harmful substance of haze.Coal-burning power plant, garbage burning factory, coke-oven plant, steel plant etc. are high pollution, high energy consumption industry,
It is the source that pollution generates, the exhaust gas components that wherein waste incineration generates are the most complicated, and processing is the most difficult.
Burning is one of main path of domestic rubbish disposal, and the flue gas that waste incineration generates contains a large amount of titanium dioxide
The pollutants such as sulphur, nitrogen oxides particulate matter, heavy metal, it is very prominent to environment and mankind's harm.New environmental law and《Life rubbish
Rubbish burns contamination control standard》(GB18485-2014) all it is strict with each pollutant emission in control incineration tail gas.
Conventional consumer waste incineration vent gas treatment uses semidry method depickling+activated coke absorption+deduster dedusting and selection
Property non-catalytic reduction denitration.But found in actual process, since many incineration plant combustion refuse load fluctuations are severe,
There is phenomena such as ash in semidry method depickling, and the temperature window of denitrating system causes also due to load problem is often less than 800 DEG C
Denitrating system often can not bringing normally into operation.In addition, even if steady load, semidry method depickling+deduster dedusting+selectivity of use
Non-catalytic reduction denitrating technique is still undesirable to the treatment effect for the flue gas that waste incineration generates, and cannot be satisfied the cigarette of requirements at the higher level
Gas discharge standard.
Invention content
A kind of complicated mostly de- minimum discharge device of flue gas activated coke provided by the utility model, it is intended to solve in the prior art
The technical problem of fume treatment auxiliary fume treatment effect difference.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution：A kind of complexity flue gas activated coke is more
De- minimum discharge device, include by flue-gas temperature control less than 135 DEG C phase-change heat-exchanger, hydrogen chloride is pre- in removing flue gas
Purifying column, active coke and the ammonia power supply unit of the deduster of dust, built-in active coke in treating column, removal flue gas；
Flue gas is discharged after phase-change heat-exchanger, pretreater, deduster, purifying column processing successively, in the deduster and the purification
It is provided with the first ammonia imports between tower, the second ammonia imports, first ammonia imports and institute are provided in the purifying column
It states the second ammonia imports and supplies ammonia by the ammonia power supply unit；It is pre- that the active coke is from top to bottom followed successively by regeneration
Hot-zone, regeneration heating zone and re-generatively cooled area, the active coke is by feed conveyor system by the purifying column interior suction
Attached activated coke introduces the regeneration preheating zone, and the active coke is cold by re-generatively cooled area by discharge transport system
But the activated coke after feeds the purifying column.
A kind of complicated mostly de- minimum discharge device of flue gas activated coke provided by the utility model, flue gas is successively through phase-change heat-exchange
Device, pretreater, deduster, purifying column processing, the flue gas processing device are particularly suitable for the flue gas of waste incineration generation, the cigarette
The flue gas that Flash Gas Compression Skid System can effectively generate waste incineration is handled, and substantially increases the processing quality of flue gas, and
And the device does not require the ingredient of flue gas, temperature, load fluctuation, there is good versatility.Activated coke can realize desulfurization,
Functions, the processing units such as denitration, removing heavy metal can effectively be handled flue gas, it is ensured that emission of smoke tallies is related
It is required that.Using phase-change heat-exchanger to flue gas cool-down, caused by not only avoiding direct spray cooling the problems such as fouling, moreover it is possible to carry out
Heat recovery reduces the fume treatment cost of flue gas processing device.Active coke can carry out regeneration treatment to activated coke,
Other than a small amount of activated coke is discharged since diameter is too small, it is other the overwhelming majority activated cokes regeneration after can Reusability, significantly
Reduce fume treatment cost.
A kind of optional scheme, the purifying column include desulfurization zone and denitration region, and second ammonia imports are located at described
Between desulfurization zone and the denitration region.
The program can be effectively prevented from the problems such as causing bonding, corrosion since spray ammonia is uneven.Second ammonia imports
Between desulfurization zone and denitration region, is conducive to the desulphurization and denitration efficiency for improving purifying column, substantially increases the utilization of ammonia
Rate.
A kind of optional scheme, the mostly de- minimum discharge device of the complexity flue gas activated coke further includes regenerated flue gas processing system
System, the regenerated flue gas processing system connect with the active coke and recycle or handle active coke generation
Gas.
Activated coke can be the activated coke produced by raw material of the one or more of anthracite, bituminous coal or lignite.The program can
It is handled with the flue gas generated to regenerated flue gas processing system, optimizes the mostly de- minimum discharge device of complicated flue gas activated coke
Performance.
A kind of optional scheme is provided between the feed conveyor system and the purifying column and screens out diameter less than 1.5
The sifter of the activated coke of millimeter.
The setting of sifter is mainly used for removing the too small activated coke of diameter, too small so as to be effectively prevented from diameter
Activated coke is reproduced, and improves the regeneration efficiency of active coke, reduces the use cost of flue gas processing device.
A kind of optional scheme, the phase-change heat-exchanger include heat exchanger tube, be provided on the heat exchanger tube flowmeter and
Adjust the flow control valve of heat transferring medium flow in the heat exchanger tube.
It is very convenient that the setting of flowmeter and flow control valve so that phase-change heat-exchanger is adjusted, and optimizes phase-change heat-exchanger
Performance.
A kind of optional scheme, the deduster are bag filter or electrostatic fabric filter.
A kind of optional scheme enters the purifying column by the flue gas of deduster discharge by the lower section of purifying column, and discharge is defeated
Send system that activated coke is fed the purifying column by the top of purifying column.
Optimize the performance of purifying column.
A kind of optional scheme, the purifying column are square reactor.
A kind of optional scheme, there are one the purifying columns, alternatively, the purifying column at least there are two, also, it is all net
Change tower to be connected in parallel.
Compared with prior art, a kind of complicated mostly de- minimum discharge device of flue gas activated coke provided by the utility model, tool
It has the following advantages：
1, the ingredient of flue gas, temperature, load fluctuation are not all required, has good adaptability, and activated coke can be passed through
Smoke processing system realizes desulphurization and denitration, removing heavy metal, the nuisance for removing dioxin.
2, the setting of phase-change heat-exchanger can efficiently control the temperature of flue gas, to be conducive to the subsequent processing of flue gas.
3, flue gas is first dusted processing before entering purifying column to flue gas, so as to effectively improve the net of purifying column
Change efficiency and the depuration quality of flue gas, and then improves the processing quality of flue gas.
4, the setting of active coke can carry out regeneration to the activated coke in purifying column, save fume treatment
The dosage of activated coke in the process reduces fume treatment cost.
Description of the drawings
Attached drawing 1 is a kind of schematic diagram of the complicated mostly de- minimum discharge device of flue gas activated coke of the utility model.
Specific implementation mode
Below in conjunction with the accompanying drawings, a kind of mostly de- minimum discharge device of complicated flue gas activated coke of the utility model is made further
Explanation.Following embodiment is only used for helping skilled in the art to understand the utility model, is not the limit to the utility model
System.
As shown in Figure 1, a kind of mostly de- minimum discharge device of complexity flue gas activated coke, mostly de- minimum discharge refers to that can remove
A variety of nuisances in flue gas, and make that treated flue gas meets discharge standard, the mostly de- minimum discharge dress of complicated flue gas activated coke
Set including by flue-gas temperature control less than 135 DEG C phase-change heat-exchanger 1, removing flue gas in hydrogen chloride pretreater 21, go
Except purifying column 3, active coke 4 and the ammonia power supply unit 5 of the deduster 2 of dust, built-in active coke in flue gas；Flue gas according to
It is secondary to be discharged after phase-change heat-exchanger 1, pretreater 21, deduster 2, the processing of purifying column 3, in the deduster 2 and the purification
It is provided with the first ammonia imports 6 between tower 3, the second ammonia imports 7, first ammonia imports 6 are provided in the purifying column 3
With second ammonia imports 7 ammonia is supplied by the ammonia power supply unit 5；The active coke 4 is from top to bottom successively
For regeneration preheating zone 8, regeneration heating zone 9 and re-generatively cooled area 10, the active coke 4 will by feed conveyor system 11
The attached activated coke of 3 interior suction of the purifying column introduces the regeneration preheating zone 8, and the active coke 4 is conveyed by discharge
10 activated coke after cooling of re-generatively cooled area is fed the purifying column 3 by system 12.The flue gas being discharged by deduster 2 is by purifying column
3 lower section enters the purifying column 3, and activated coke is fed the purifying column 3 by discharge transport system 12 by the top of purifying column 3.
Activated coke can reuse after the regeneration of active coke 4, greatly reduce fume treatment cost.
The operation principle of above-mentioned technical proposal is：Flue gas initially enters phase-change heat-exchanger 1, cools down by phase-change heat-exchanger 1
Afterwards by flue-gas temperature control within 135 DEG C, i.e., the outlet temperature of phase-change heat-exchanger 1 is less than 135 DEG C；
Then, the flue gas after the heat exchange of phase-change heat-exchanger 1 sequentially enter pretreater 21, dedusting in deduster 2, through dedusting
Flue gas dust concentration after device 2 reaches 15mg/Nm3Within；
Finally, the flue gas after 2 dedusting of deduster enters the purification of purifying column 3, and the purified tower 3 of flue gas is discharged after purifying.For
The detergent power of purifying column 3 is improved, flue gas can enter from the lower section of purifying column 3, be discharged from the top of purifying column 3, in purifying column 3
3.5 to 4.5m/s, feed conveyor system 11 takes out the activated coke after absorption, row by the lower section of purifying column 3 for flue gas flow rate control
Expect that the activated coke after regeneration is fed purifying column 3 by transport system 12 by the top of purifying column 3.
The purifying column 3 is square reactor, and there are one the purifying columns 3, alternatively, the purifying column 3 at least two
It is a, also, all purifying columns 3 are connected in parallel.That is, unit style may be used for purifying column 3 or several purifying columns 3 are superimposed as
One big purifying column, and be also divided into several roads for the total flue gas of compound purifying tower and have respectively entered purification unit tower again.
9 temperature of regeneration heating zone in active coke 4 controls between 400~450 DEG C, to improve activated coke again
Come into force rate.
As shown in Figure 1, the purifying column 3 includes desulfurization zone 13 and denitration region 15, second ammonia imports 7 are located at described
Between desulfurization zone 13 and the denitration region 15, second ammonia imports 7 can be set to desulfurization zone 13 and denitration region 15 it
Between spray ammonia grid, spray ammonia grid can uniformly spray the structure of ammonia, which is the conventional structure of the prior art, herein
Not reinflated narration.The ammonia ammonia nitrogen ratio of the supply of ammonia power supply unit 5 is 0.9~1.5, ammonia concentration control 3~5%, with
Improve the utilization rate of ammonia.
As shown in Figure 1, being handled for the gas generated to active coke 4, the complexity flue gas activated coke is mostly de- super
Low emission device further includes regenerated flue gas processing system 16, the regenerated flue gas processing system 16 and the active coke 4
Connect and recycle or handle the gas of the generation of active coke 4.
As shown in Figure 1, for the smaller activated coke of diameter in removal activated coke, to improve the revival of active coke 4
Rate is provided with the screening for screening out activated coke of the diameter less than 1.5 millimeters between the feed conveyor system 11 and the purifying column 3
Device 18, sifter 18 are conventional equipment in the prior art, herein not reinflated narration.
The phase-change heat-exchanger 1 includes heat exchanger tube, and flowmeter is provided on the heat exchanger tube and adjusts the heat exchanger tube
The flow control valve of interior heat transferring medium flow, flowmeter and flow control valve are using conventional assembly method assembly in the prior art
To heat exchanger tube, assembly method not reinflated narration herein.
The deduster 2 can be bag filter or electrostatic fabric filter.
Through treated the flue gas of technical solution disclosed in the present embodiment, wherein nuisance content is：Sulfur dioxide≤35mg/
Nm3, nitrogen oxides≤35mg/Nm3, flue dust≤10mg/Nm3, hydrogen sulfide≤50mg/Nm3It substantially increases compared with the existing technology
The processing quality of flue gas, and reduce fume treatment cost.
The section Example of the utility model is described in detail above in association with attached drawing.Those skilled in the art read
After this specification, it is based on the technical solution of the utility model, can be modified to above-described embodiment, these modifications still fall within this
The protection domain of utility model.
Claims (9)
1. a kind of mostly de- minimum discharge device of complexity flue gas activated coke, it is characterised in that：Including by flue-gas temperature control less than
135 DEG C of phase-change heat-exchanger (1), the deduster for removing the pretreater (21) of hydrogen chloride in flue gas, removing dust in flue gas
(2), the purifying column (3) of built-in active coke, active coke (4) and ammonia power supply unit (5)；Flue gas is successively through phase-change heat-exchange
It is discharged after device (1), pretreater (21), deduster (2), purifying column (3) processing, in the deduster (2) and the purifying column
(3) it is provided with the first ammonia imports (6) between, the second ammonia imports (7), first ammonia are provided in the purifying column (3)
Gas import (6) and second ammonia imports (7) supply ammonia by the ammonia power supply unit (5)；The active coke
(4) regeneration preheating zone (8), regeneration heating zone (9) and re-generatively cooled area (10), the active coke are from top to bottom followed successively by
(4) the attached activated coke of the purifying column (3) interior suction is introduced by the regeneration preheating zone (8) by feed conveyor system (11),
The active coke (4) will be described in re-generatively cooled area (10) activated coke infeed after cooling by discharge transport system (12)
Purifying column (3).
2. a kind of complicated mostly de- minimum discharge device of flue gas activated coke according to claim 1, it is characterised in that：It is described net
It includes desulfurization zone (13) and denitration region (15) to change tower (3), second ammonia imports (7) be located at the desulfurization zone (13) with it is described
Between denitration region (15).
3. a kind of complicated mostly de- minimum discharge device of flue gas activated coke according to claim 1, it is characterised in that：The complexity
The mostly de- minimum discharge device of flue gas activated coke further includes regenerated flue gas processing system (16), the regenerated flue gas processing system (16)
The gas of active coke (4) generation is connect and recycled or handle with the active coke (4).
4. a kind of complicated mostly de- minimum discharge device of flue gas activated coke according to claim 1 or 3, it is characterised in that：Institute
It states to be provided between feed conveyor system (11) and the purifying column (3) and screens out the activated coke sifter that diameter is less than 1.5 millimeters
(18)。
5. a kind of complicated mostly de- minimum discharge device of flue gas activated coke according to claim 1, it is characterised in that：The phase
It includes heat exchanger tube to become heat exchanger (1), and flowmeter is provided on the heat exchanger tube and adjusts heat exchanging medium flow in the heat exchanger tube
The flow control valve of amount.
6. a kind of complicated mostly de- minimum discharge device of flue gas activated coke according to claim 1, it is characterised in that：It is described to remove
Dirt device (2) is bag filter or electrostatic fabric filter.
7. a kind of mostly de- minimum discharge device of complicated flue gas activated coke according to claim 1, it is characterised in that：By deduster
(2) flue gas being discharged enters the purifying column (3) by the lower section of purifying column (3), and discharge transport system (12) is by purifying column (3)
Activated coke is fed the purifying column (3) by top.
8. a kind of mostly de- minimum discharge device of complicated flue gas activated coke according to claim 1, it is characterised in that：Described is net
It is square reactor to change tower (3).
9. a kind of mostly de- minimum discharge device of complicated flue gas activated coke according to claim 1, it is characterised in that：The purification
There are one towers (3), alternatively, the purifying column (3) at least there are two, also, all purifying columns (3) are connected in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820198145.0U CN207980821U (en) | 2018-02-05 | 2018-02-05 | A kind of mostly de- minimum discharge device of complexity flue gas activated coke |
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| CN201820198145.0U CN207980821U (en) | 2018-02-05 | 2018-02-05 | A kind of mostly de- minimum discharge device of complexity flue gas activated coke |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604400A (en) * | 2020-11-30 | 2021-04-06 | 成都达奇环境科技有限公司 | Flue gas purification method and flue gas purification system |
-
2018
- 2018-02-05 CN CN201820198145.0U patent/CN207980821U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112604400A (en) * | 2020-11-30 | 2021-04-06 | 成都达奇环境科技有限公司 | Flue gas purification method and flue gas purification system |
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