CN206266239U - Fume desulfurizing agent sodium acid carbonate regenerating unit - Google Patents
Fume desulfurizing agent sodium acid carbonate regenerating unit Download PDFInfo
- Publication number
- CN206266239U CN206266239U CN201621355567.1U CN201621355567U CN206266239U CN 206266239 U CN206266239 U CN 206266239U CN 201621355567 U CN201621355567 U CN 201621355567U CN 206266239 U CN206266239 U CN 206266239U
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- sodium
- separator
- deduster
- gleanings
- carbonate
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Abstract
The utility model discloses a kind of fume desulfurizing agent sodium acid carbonate regenerating unit, including deduster gleanings dissolvers, the first separator, sodium acid carbonate maker, the second separator and sodium carbonate maker.Deduster gleanings dissolvers is used for the sodium carbonate dissolving in the deduster gleanings from flue gas desulfurization device；First separator is connected by pipeline with deduster gleanings dissolvers, and sodium acid carbonate maker is connected by pipeline with the first separator；Second separator is connected by pipeline with sodium acid carbonate maker；Sodium carbonate maker is connected by pipeline with the second separator.Device of the present utility model can realize that the regeneration of the desulfurizing agent sodium bicarbonate powder used in flue gas dry desulfurizing equipment is reclaimed.Additionally, device of the present utility model uses the carbon dioxide in the flue gas after purification as reactant, operating cost can be substantially reduced.
Description
Technical field
The utility model is related to a kind of fume desulfurizing agent regenerating unit, especially a kind of fume desulfurizing agent sodium acid carbonate regeneration
Device.
Background technology
For boiler for sulphur coal area and using SCR, it is the thing being difficult to avoid that to produce sulfur trioxide.Three oxidations
Sulphur can form aerosol, form blue plume.Sulfur trioxide can also reduce flue gas dew point, and condense into acid at a certain temperature
Dew, so that etching apparatus.Sulfur trioxide can also with SCR in inject ammonia formed ammonium hydrogen sulfate, when temperature drop to 140~
At 150 DEG C, stickiness blocking is formed at air preheater and catalyst, cause airway blockage.Additionally, for many Industrial Boilers, cigarette
Gas complicated component is changeable, has strong acid (such as hydrogen chloride) generation.Hydrogen chloride is the primary pollution source for causing acid rain.Hydrogen chloride enters
Enter and can form sour water in water body, high chloride ion water is extremely serious for the corrosion of steel, easily causes the damage of equipment.
Dry flue gas desulphurization (DSI) technology can solve the sour gas pollution problem such as sulfur trioxide, hydrogen chloride.DSI skills
Art refers to that the sour gas in flue gas is removed using powdery or granular absorbent, adsorbent or catalyst.The letter of DSI technical matters
It is single, without Waste Water Containing Sulfur process problem, have the advantages that energy consumption is low, corrosivity is small.Compared with wet desulphurization, DSI technologies are not produced
Salinity high and the waste water containing heavy metal, product good fluidity, and suitably use Geldart-D particle.DSI technologies generally use carbonic acid
Hydrogen sodium powder end is used as desulfurizing agent, its most of cost for occupying flue gas desulfurization.If sodium bicarbonate powder can be regenerated back
Receive, flue gas desulfurization cost will be substantially reduced.Therefore, in the urgent need to a kind of device, it can be by fume desulfurizing agent sodium acid carbonate again
It is raw to reclaim.
Utility model content
The purpose of this utility model is to provide a kind of fume desulfurizing agent sodium acid carbonate regenerating unit, and it can realize carbonic acid
The regeneration at hydrogen sodium powder end is reclaimed.It is of the present utility model to be regenerated it is a further objective that providing a kind of fume desulfurizing agent sodium acid carbonate
Device, it can reduce plant running cost.
Inventors herein have recognized that following technical scheme can realize above-mentioned purpose.
The utility model provides a kind of fume desulfurizing agent sodium acid carbonate regenerating unit, and described device is collected including deduster
Thing dissolvers, the first separator, sodium acid carbonate maker, the second separator and sodium carbonate maker；
The deduster gleanings dissolvers is used for the sodium carbonate in the deduster gleanings from flue gas desulfurization device
Dissolving, so as to form deduster gleanings slurries；
First separator is connected by pipeline with the deduster gleanings dissolvers, and it is used to separate from described
The deduster gleanings slurries of deduster gleanings dissolvers, so as to form intermediate grout；
The sodium acid carbonate maker is connected by pipeline with first separator, and it is used for from the first separator
Intermediate grout be converted into sodium acid carbonate suspension；
Second separator is connected by pipeline with the sodium acid carbonate maker, and it is used for from the bicarbonate
The sodium acid carbonate suspension of sodium maker is separated into sodium acid carbonate precipitation and sodium bicarbonate slurry；With
The sodium carbonate maker is connected by pipeline with second separator, and it is used for from the second separator
Sodium bicarbonate slurry is converted into sodium carbonate slurries.
In the utility model, flue gas desulfurization device can using it is known in the art those, such as flue gas dry desulfurizing
Equipment, it includes desulfurizing tower and deduster etc..Deduster gleanings of the present utility model refer to flue gas after desulfurization by dedusting
Device dedusting, the flue gas after purification is discharged from chimney, and the solid particulate matter for filtering down is collected as deduster gleanings.
Deduster gleanings of the present utility model are well known in the art；Its composition includes dust (flyash), sodium carbonate, sodium sulphate
Deng these compositions are also known in the art.
According to device of the present utility model, it is preferable that the sodium carbonate maker is collected by pipeline with the deduster
Thing dissolvers is connected, and it is used for the sodium carbonate serum recycle from the sodium carbonate maker is molten to the deduster gleanings
Solution device.In the utility model, sodium carbonate slurries contain sodium carbonate and calcium hydroxide, are recycled to the deduster gleanings
Dissolvers, so as to avoid discharging of waste liquid, and improves sodium carbonate utilization rate.
According to device of the present utility model, it is preferable that described device also includes water feeder, and it is used for the dedusting
Device gleanings dissolvers supplies water.
According to device of the present utility model, it is preferable that described device also includes sodium chloride feeder, and it is used for described
Deduster gleanings dissolvers supplies sodium chloride.
In deduster gleanings dissolvers of the present utility model, deduster gleanings are with water, sodium chloride and from carbon
The sodium carbonate slurries mixing of sour sodium maker, forms deduster gleanings slurries.Contain in described deduster gleanings slurries
It is dissolved in NaOH and sodium carbonate, undissolved calcium carbonate in water, calcium sulfate and flyash of water etc..These compositions and reaction
Process is well known in the art.
In the utility model, first separator is connected by pipeline with the deduster gleanings dissolvers, its
For separating the deduster gleanings slurries from the deduster gleanings dissolvers, so as to form intermediate grout.By
One separator, undissolved calcium carbonate in water, calcium sulfate and flyash are separated, and the part for leaving is used as intermediate grout.
The intermediate grout is the solution for mainly containing NaOH and sodium carbonate.According to device of the present utility model, it is preferable that described
One separator is filter press or cyclone hydraulic separators.
In the utility model, the sodium acid carbonate maker is connected by pipeline with first separator, and it is used for
Intermediate grout from the first separator is converted into sodium acid carbonate suspension.According to device of the present utility model, it is preferable that institute
The device stated also includes carbon dioxide feeder, and it passes through pipeline and is connected with the sodium acid carbonate maker, and it is used for described
Flue gas after the supply purification of sodium acid carbonate maker.In the utility model, great amount of carbon dioxide is contained in the flue gas after purification,
The sodium acid carbonate maker is passed into, sodium acid carbonate regeneration cost recovery can be substantially reduced, and reduce fume emission.
In the sodium acid carbonate maker, NaOH, sodium carbonate and carbon dioxide reaction in intermediate grout form bicarbonate
Sodium.Mentioned component and reaction are known in the art.
In the utility model, second separator is connected by pipeline with the sodium acid carbonate maker, and it is used for
Sodium acid carbonate suspension from the sodium acid carbonate maker is separated into sodium acid carbonate precipitation and sodium bicarbonate slurry.According to
Device of the present utility model, it is preferable that second separator is filter press or cyclone hydraulic separators.
According to device of the present utility model, it is preferable that described device also includes sodium acid carbonate returnable, and it is used for back
Receive the sodium acid carbonate precipitation from second separator.Sodium acid carbonate precipitation is by drying, pulverization process forms sodium acid carbonate
Powder, can circulate and be used as dry-desulphurizer.
In the utility model, the sodium carbonate maker is connected by pipeline with second separator, its be used for by
Sodium bicarbonate slurry from the second separator is converted into sodium carbonate slurries.According to device of the present utility model, it is preferable that described
Device also include lime, its be used for sodium carbonate maker supply lime.Sodium acid carbonate from the second separator
Slurries still contain some sodium acid carbonates, in the presence of lime (such as white lime), sodium carbonate slurries are formed, wherein containing one
A little unreacted calcium hydroxides.The sodium carbonate slurries are circulated to the deduster gleanings dissolvers.
According to device of the present utility model, it is preferable that the deduster gleanings dissolvers and first separator it
Between pipeline on be provided with deduster gleanings slurries pump；Pipe between the sodium acid carbonate maker and second separator
Sodium bicarbonate slurry pump is provided with line；And pipeline between the sodium carbonate maker and the deduster gleanings dissolvers
On be provided with sodium carbonate slurry circulating pump.When the first separator, the second separator are filter press, deduster receipts can be not provided with
Collection thing slurries pump, sodium bicarbonate slurry pump；When they are cyclone hydraulic separators, deduster gleanings slurries pump, carbon are preferably provided
Sour hydrogen sodium slurries pump.
Device of the present utility model can realize the desulfurizing agent sodium bicarbonate powder used in flue gas dry desulfurizing equipment
Regeneration reclaim.According to the preferred technical scheme of the utility model, the sodium carbonate serum recycle that sodium carbonate maker is formed is made
With using the carbon dioxide in the flue gas after purification as reactant, the operation of device of the present utility model can be substantially reduced
Cost.
Brief description of the drawings
Fig. 1 is a kind of structural representation of fume desulfurizing agent sodium acid carbonate regenerating unit of the present utility model.
Description of reference numerals is as follows：
11- deduster gleanings dissolvers, the separators of 21- first, 12- sodium acid carbonate makers, the separators of 22- second,
13- sodium carbonate makers, 31- deduster gleanings slurries pumps, 32- sodium bicarbonate slurry pumps, 33- sodium carbonate slurry circulating pumps,
110- water feeders, 111- sodium chloride feeders, 120- carbon dioxide feeders, 220- sodium acid carbonate returnable, 130- stones
Grey feeder.
Specific embodiment
The utility model is further described with reference to specific embodiment, but protection domain of the present utility model is simultaneously
Not limited to this.
Embodiment 1
Fig. 1 is a kind of fume desulfurizing agent sodium acid carbonate regenerating unit of the present utility model.As seen from the figure, the device includes removing
Dirt device gleanings dissolvers 11, the first separator 21, sodium acid carbonate maker 12, the second separator 22 and sodium carbonate maker
13.Deduster gleanings dissolvers 11 is used for the sodium carbonate dissolving in the deduster gleanings from flue gas desulfurization device, from
And form deduster gleanings slurries.Deduster gleanings remove the solid for filtering down for the deduster of flue gas dry desulfurizing equipment
Particulate matter, wherein containing flyash, sodium sulphate and sodium carbonate.
The device also include for deduster gleanings dissolvers 11 supply water water feeder 110, and for
The deduster gleanings dissolvers 11 supplies the sodium chloride feeder 111 of sodium chloride.In deduster gleanings dissolvers 11,
Sodium carbonate in deduster gleanings is abundant in the presence of water, sodium chloride and calcium hydroxide (being provided by sodium carbonate maker 13)
Dissolving, so as to form deduster gleanings slurries.The deduster gleanings slurries contain the NaOH and carbonic acid for being dissolved in water
Sodium, undissolved precipitation of calcium carbonate in water, calcium sulfate and flyash etc..
First separator 21 is connected by pipeline with deduster gleanings dissolvers 11, and Self-duster collection is carried out for separating
The deduster gleanings slurries of thing dissolvers 11, so as to form intermediate grout.First separator 21 of the present embodiment is spinning liquid point
From device.By the first separator 21, undissolved precipitation of calcium carbonate in water, calcium sulfate and flyash are separated, and leave
Part is used as intermediate grout.The intermediate grout is mainly the solution containing NaOH and sodium carbonate.Deduster gleanings dissolve
Deduster gleanings slurries pump 31 is provided with pipeline between the separator 21 of device 11 and first, for deduster gleanings to be starched
Liquid pump delivers to the first separator 21.
Sodium acid carbonate maker 12 is connected by pipeline with the first separator 21, for by from the first separator 21
Between slurries be converted into sodium acid carbonate suspension.Device of the present utility model also includes carbon dioxide feeder 120, and it passes through pipeline
It is connected with sodium acid carbonate maker 12, for the flue gas after the supply purification of sodium acid carbonate maker 12.Flue gas after purification contains
There is great amount of carbon dioxide, NaOH, sodium carbonate and carbon dioxide reaction in intermediate grout form sodium acid carbonate.
Second separator 22 is connected by pipeline with sodium acid carbonate maker 12, for will be from sodium acid carbonate maker 12
Sodium acid carbonate suspension be separated into sodium acid carbonate precipitation and sodium bicarbonate slurry.The separator of sodium acid carbonate maker 12 and second
Sodium bicarbonate slurry pump 32 is provided with pipeline between 22.Second separator 22 of the present embodiment is cyclone hydraulic separators.This reality
Also include sodium acid carbonate returnable 220 with new device, for reclaiming the sodium acid carbonate precipitation from the second separator 22.
Sodium acid carbonate precipitation is recycled by forming sodium bicarbonate powder after drying, crushing as desulfurizing agent.
Sodium carbonate maker 13 is connected by pipeline with the second separator 22, for by the carbonic acid from the second separator 22
Hydrogen sodium slurries are converted into sodium carbonate slurries.Device of the present utility model also includes lime 130, for being generated to sodium carbonate
Device 13 supplies lime.Sodium bicarbonate slurry from the second separator 22 still contains some sodium acid carbonates, (such as ripe in lime
Lime) in the presence of, sodium carbonate slurries are formed, wherein containing some unreacted calcium hydroxides.Sodium carbonate maker 13 passes through
Pipeline is connected with deduster gleanings dissolvers 11, and sodium carbonate slurry circulating pump 33 is provided with pipeline between, is used
In the sodium carbonate slurries (containing calcium hydroxide) from sodium acid carbonate maker 13 are recycled into deduster gleanings dissolvers 11.
Embodiment 2
Except the first separator 21, the second separator 22 are replaced with into filter press and deduster gleanings slurries are omitted
Outside pump 31 and sodium bicarbonate slurry pump 32, remaining equipment and condition are same as Example 1.
The utility model is not limited to above-mentioned implementation method, in the case of without departing substantially from substance of the present utility model,
It may occur to persons skilled in the art that any deformation, improvement, replacement each fall within scope of the present utility model.
Claims (10)
1. a kind of fume desulfurizing agent sodium acid carbonate regenerating unit, it is characterised in that described device includes that deduster gleanings are molten
Solution device, the first separator, sodium acid carbonate maker, the second separator and sodium carbonate maker；
The deduster gleanings dissolvers is used for the sodium carbonate dissolving in the deduster gleanings from flue gas desulfurization device,
So as to form deduster gleanings slurries；
First separator is connected by pipeline with the deduster gleanings dissolvers, and it is used to separate from the dedusting
The deduster gleanings slurries of device gleanings dissolvers, so as to form intermediate grout；
The sodium acid carbonate maker is connected by pipeline with first separator, and it is used for from the first separator
Between slurries be converted into sodium acid carbonate suspension；
Second separator is connected by pipeline with the sodium acid carbonate maker, and it is used for from sodium acid carbonate life
The sodium acid carbonate suspension grown up to be a useful person is separated into sodium acid carbonate precipitation and sodium bicarbonate slurry；With
The sodium carbonate maker is connected by pipeline with second separator, and it is used for the carbonic acid from the second separator
Hydrogen sodium slurries are converted into sodium carbonate slurries.
2. device according to claim 1, it is characterised in that the sodium carbonate maker passes through pipeline and the deduster
Gleanings dissolvers is connected, and it is used to collect the sodium carbonate serum recycle from the sodium carbonate maker to the deduster
Thing dissolvers.
3. device according to claim 1 and 2, it is characterised in that described device also includes water feeder, its be used for
The deduster gleanings dissolvers supplies water.
4. device according to claim 1 and 2, it is characterised in that described device also includes sodium chloride feeder, its use
In to deduster gleanings dissolvers supply sodium chloride.
5. device according to claim 1 and 2, it is characterised in that described device also includes carbon dioxide feeder, its
It is connected with the sodium acid carbonate maker by pipeline, it is used for the flue gas after sodium acid carbonate maker supply purification.
6. device according to claim 1 and 2, it is characterised in that described device also includes sodium acid carbonate returnable,
It is used to reclaim the sodium acid carbonate precipitation from second separator.
7. device according to claim 1 and 2, it is characterised in that described device also includes lime, and it is used for
Lime is supplied to sodium carbonate maker.
8. device according to claim 1 and 2, it is characterised in that first separator is filter press or rotary filter press
Device.
9. device according to claim 1 and 2, it is characterised in that second separator is filter press or rotary filter press
Device.
10. device according to claim 1 and 2, it is characterised in that the deduster gleanings dissolvers and described first
Deduster gleanings slurries pump is provided with pipeline between separator；The sodium acid carbonate maker and second separator
Between pipeline on be provided with sodium bicarbonate slurry pump；And the sodium carbonate maker and the deduster gleanings dissolvers
Between be provided with sodium carbonate slurry circulating pump on pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355567.1U CN206266239U (en) | 2016-12-09 | 2016-12-09 | Fume desulfurizing agent sodium acid carbonate regenerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355567.1U CN206266239U (en) | 2016-12-09 | 2016-12-09 | Fume desulfurizing agent sodium acid carbonate regenerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206266239U true CN206266239U (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621355567.1U Expired - Fee Related CN206266239U (en) | 2016-12-09 | 2016-12-09 | Fume desulfurizing agent sodium acid carbonate regenerating unit |
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|---|---|
| CN (1) | CN206266239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075683A (en) * | 2019-04-16 | 2019-08-02 | 中国能源建设集团广东省电力设计研究院有限公司 | SO in a kind of removing boiler smoke3Method and system |
-
2016
- 2016-12-09 CN CN201621355567.1U patent/CN206266239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110075683A (en) * | 2019-04-16 | 2019-08-02 | 中国能源建设集团广东省电力设计研究院有限公司 | SO in a kind of removing boiler smoke3Method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Xinshun Inventor after: Jin Ying Inventor after: Gong Dongqi Inventor after: Liu Shuang Inventor before: Yang Xinshun Inventor before: Jin Ying Inventor before: Gong Dongqi |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20211209 |