CN208244407U - Regenerating active carbon gas preprocessing system device - Google Patents
Regenerating active carbon gas preprocessing system device Download PDFInfo
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- CN208244407U CN208244407U CN201820499224.5U CN201820499224U CN208244407U CN 208244407 U CN208244407 U CN 208244407U CN 201820499224 U CN201820499224 U CN 201820499224U CN 208244407 U CN208244407 U CN 208244407U
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Abstract
The utility model provides a kind of regenerating active carbon gas preprocessing system device, which includes regeneration gas gas wet scrubbing system and washing liquid treating system；Wherein, the regeneration gas wet scrubbing system includes wet scrubber, cleaning circulation pump, cleaning solution discharge pump, clear liquid pump, liquid tank；Washing liquid treating system includes clarifier, sludge pump, filter, aminoacid stripping tower, brine discharge pump；Wet scrubber is connect with cleaning circulation pump, cleaning solution discharge pump, liquid tank respectively, and the lower part of cleaning solution discharge pump and wet scrubber connects, and the top of wet scrubber is connected with liquid tank, and liquid tank is connected with clear liquid pump；Cleaning solution discharge pump is connected with clarifier, and clarifier is connected with filter by sludge pump；Clarifier is connected with aminoacid stripping tower and brine discharge pump in turn.The utility model realizes the pretreatment to regenerating active carbon gas, obtains clean high-concentration sulfur dioxide gas, and achievees the effect that recycle ammonia simultaneously.
Description
Technical field
The utility model relates to environmental protection technical fields more particularly to a kind of regenerating active carbon gas pretreatment system to fill
It sets.
Background technique
Active carbon dry flue gas desulphurization denitration technology is the treatment using active carbon simultaneous SO_2 and NO removal, it
Treatment process carries out in a reactor, can a step reach the treatment effect of desulphurization denitration, which can remove simultaneously
SO in flue gas2, NOx, and removing dioxin, heavy metal, other multiple pollutants such as dirt, the SO of by-product can be attached to2It is processable
At a variety of sulfate, sulphite or sulfuric acid product, it has been successfully applied in chemical industry, power plant, the coke oven of coking, coloured smelting at present
Refining, the sintering of steel and pelletizing industry.
Its active carbon for using of active carbon dry flue gas desulphurization denitrification apparatus usually has a set of active carbon to be recycled
Regenerative system adsorbs SO2Active carbon afterwards is transported to regenerator, by heating, is released at high temperature containing high concentration SO2
Gas, referred to as regenerating active carbon gas.
Its complicated component of regenerating active carbon gas, in addition to containing high concentration SO2Outside, usually also contain NH3、HCl、HF、SO3、
Dust (predominantly powdered carbon) gives SO2Recycling causes certain difficulty.
Existing treatment process are as follows: washing process is used, by the NH in flue gas3、HCl、HF、SO3, powdered carbon wash, it is fixed
Phase waste discharge is created great difficulties since usually acidity, COD, ammonia-nitrogen content are high for institute's effluent to subsequent processing.
Therefore, it is now necessary to develop it is a kind of can low cost and simple process, safe and reliable, it is compact-sized, and recycle
The process and corollary apparatus of ammonia in regeneration gas.
Utility model content
Problem to be solved in the utility model is to provide a kind of regenerating active carbon gas preprocessing system device, realizes to work
Property the purification of charcoal regeneration gas, the ammonia that wherein contains of recycling, be subsequent SO2Clean SO is provided using device2Gas, and technique
Process safety is reliable, compact-sized.
To solve the above problems, the technical solution adopted in the utility model is: this includes regeneration gas wet scrubbing system
With washing liquid treating system；
Wherein, the regeneration gas wet scrubbing system include wet scrubber, cleaning circulation pump, cleaning solution discharge pump,
Clear liquid pump, liquid tank；The washing liquid treating system includes clarifier, sludge pump, filter, aminoacid stripping tower, salt water discharge
Pump；
The wet scrubber is connect with the cleaning circulation pump, cleaning solution discharge pump, liquid tank respectively, and the washing
Liquid discharge pump is connect with the lower part of the wet scrubber, and the top of the wet scrubber is connected with the liquid tank, described
Liquid tank is connected with the clear liquid pump；
The cleaning solution discharge pump is connected with the clarifier, and the clarifier and the filter pass through the sludge pump
It is connected；The clarifier is connected with the aminoacid stripping tower and brine discharge pump in turn.
Using the technical solution of the utility model, compared with prior art, it can be achieved that the purification of regenerating active carbon gas,
The ammonia wherein contained is recycled, is subsequent SO2Clean SO is provided using device2Gas, and technical process is safe and reliable, structure is tight
It gathers；The top of wet scrubber is wet type electrostatic precipitator, further decreases final SO2Gaseous impurity concentration；With wash cycle
Suspended matter in wash cycle liquid can be controlled in very low level, be conducive to the stable operation of follow-up equipment by liquid removal of impurities；If
The stripper for recovery ammonia is set, the ammonia in regeneration gas has not only been recycled, but also solves the problems, such as ammonia-containing water processing；Furthermore this
The technical solution of utility model has simple process, maturation, compact-sized, easily controllable, is conducive to heavy industrialization.
Further improve be, the wet scrubber include gas-liquid mixed component, gas-liquid separation partition, cylinder and
Electrostatic precipitator；One end of the gas-liquid mixed component is connected with cylinder, and the top of the cylinder, institute is arranged in the electrostatic precipitator
Gas-liquid separation partition is stated in electrostatic precipitator lower part；Clean sulfur dioxide (SO2) emissions mouth is also connected at the top of the wet scrubber；
The bottom of the wet scrubber is liquid cell, for storing wash cycle liquid.
Gas-liquid separation partition top is connected with clear liquid pump, the liquid discharge outlet that gas-liquid separation partition has and described clear
Liquid bath is connected, and liquid tank is connected with clear liquid pump.
Regenerating active carbon gas is introduced into gas-liquid mixed component, enters in the middle part of wet scrubber cylinder after mixing strongly,
Impurity concentration is further controlled through upper clear supernate circulation section again, most obtains cleaning after top electrostatic precipitator demisting, dedusting afterwards
Sulfur dioxide gas.
Further improve is that the gas-liquid mixed component is in the cylinder with the position of cylinder being connected
Portion；The other end of the gas-liquid mixed component is connected with the outlet of regenerating active carbon gas access and the cleaning circulation pump.
Regenerating active carbon gas and wash cycle liquid both enter gas-liquid mixed component from top to down, from wet scrubber
The middle part of cylinder enters, and discharges after electrostatic precipitator from below to up.
Further improve is that the aminoacid stripping tower is connected with brine discharge pump, the brine discharge pump and the ammonia
The bottom of stripper connects.
Aminoacid stripping tower bottom is equipped with leakage fluid dram, and brine discharge pump is connect with the bottom of the aminoacid stripping tower, surplus after operation
Remaining solution is handled by brine discharge pump outlet.
Further improve is that the lower part of the aminoacid stripping tower has lye that mouth and steam addition mouth is added；The ammonia vapour
There is ammonia emission mouth at the top of stripper.
Its principle of aminoacid stripping tower is that ammonium salt and alkaline reaction generate free state ammonia, recycles steam heat that liquid is stripped off in ammonia
Phase, therefore, it is necessary to have ammonia emission mouth at the top of aminoacid stripping tower.
Further improve is that the bottom of the filter is provided with powdered carbon discharge outlet.
Another technical problem to be solved in the utility model is to provide a kind of regenerating active carbon gas pretreating process side
Method, comprising the following steps:
(1) regeneration gas purifies: regenerating active carbon pneumatic transmission enters wet scrubber, in wet scrubber gas-liquid mixed component, with
Wash cycle liquid carries out gas-liquid and mixes strongly, removes major part NH3、HCl、HF、SO3And dust, using wet scrubber top
Clear liquid circulation section further wash, except the circulation drop and fine dusts of deentrainment, most the electric demisting depth through top is removed afterwards
Droplet, dust are removed, last clean high concentration SO2Gas is discharged to subsequent SO at the top of washer2Utilize workshop section；
(2) wash cycle liquid cleans: wash cycle liquid absorbs the NH in regeneration gas3、HCl、HF、SO3And powdered carbon, it is formed
Circulation fluid in contain a large amount of ammonium salts, chloride, fluoride, sulfate, suspended matter, this strand of solution is from the bottom of wet scrubber
Leakage fluid dram discharge is delivered to clarifier by pump, removes the suspended matter in cleaning solution, and clear liquid is sent to aminoacid stripping tower, clarifier row
Mud containing powdered carbon out is filtered, and breeze outlet, the fuel as other process are formed；
(3) ammonia stripping recycling: the clear liquid of clarifier discharge is sent to aminoacid stripping tower, is mixed in aminoacid stripping tower with lye, instead
Using steam as heat source liquid phase is stripped off in ammonia by the ammonia that should generate free state from solution, and obtained ammonia is de- for active carbon
Sulphur denitrification apparatus is as reducing agent；
(4) salt water outlet: the remaining main component in solution of ammonia stripping operation is sulfate, chloride, from aminoacid stripping tower
Bottom discharge, outlet processing.
By adopting the above technical scheme, will contain regenerating active carbon stripping purify and recycle ammonia therein, both realized using compared with
Low processing cost has recycled ammonia resource, and the technical process is safe and reliable, environmental-friendly.
Further improve is, in the step (3), the lye is NaOH, Na2CO3One of or its group
It closes.
Further improve is, is the using effect of realization device, top circulating clear liquid ratio in the step (1)
Weight is 1.0 ~ 1.05, pH value < 7.0.
Further improve is, in the step (2), cleaning solution is discharged from wet scrubber bottom leakage fluid dram, leads to
It crosses and is pumped to clarifier, sludge is discharged from bottom of clarifier, is pumped to filter, and filter residue is discharged from filter lower part bucket, mistake
Filter leakage fluid dram is connected with clarifier feedwell, and clear liquid is discharged from clarifier top, send to aminoacid stripping tower.
Detailed description of the invention
Further describe with reference to the accompanying drawing the technical solution of the utility model includes:
Fig. 1 is the utility model regenerating active carbon gas preprocessing system device structural schematic diagram；
Fig. 2 is the simple process figure of the utility model regenerating active carbon gas pretreatment process method；
Wherein: 1- cleaning circulation pump；2- wet scrubber；3- cleaning solution discharge pump；4- clear liquid pump；5- liquid tank；6- is clear
Clear device；7- sludge pump；8- filter；9- aminoacid stripping tower；10- brine discharge pump；101- regenerating active carbon gas access；102- charcoal
Powder discharge outlet；Mouth is added in 103- lye；Mouth is added in 104- steam；105- cleaning sulfur dioxide (SO2) emissions mouth；106- ammonia emission mouth；
201- gas-liquid mixed component；202- electrostatic precipitator；203- cylinder；204- gas-liquid separation partition.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
Embodiment 1: the regenerating active carbon gas preprocessing system device of the utility model, as shown in Figure 1, arrow meaning
Direction is material trend；It include regeneration gas wet scrubbing system and washing liquid treating system；
Wherein, the regeneration gas wet scrubbing system includes wet scrubber 2, cleaning circulation pump 1, cleaning solution discharge pump
3, clear liquid pump 4, liquid tank 5；The washing liquid treating system include clarifier 6, sludge pump 7, filter 8, aminoacid stripping tower 9,
Brine discharge pump 10；
The wet scrubber 2 is connect with the cleaning circulation pump 10, cleaning solution discharge pump 3, liquid tank 5 respectively, and institute
It states cleaning solution discharge pump 3 to connect with the lower part of the wet scrubber 2, the top of the wet scrubber 2 and the liquid tank 5
It is connected, the liquid tank 5 is connected with the clear liquid pump 4, and clear liquid pump 4 connect to form clear liquid circulation section with wet scrubber 2 again；
The cleaning solution discharge pump 3 is connected with the clarifier 6, and the clarifier 6 passes through the row with the filter 8
Dredge pump 7 is connected；The clarifier 6 is connected with the aminoacid stripping tower 9 and brine discharge pump 10 in turn.
The wet scrubber 2 includes gas-liquid mixed component 201, gas-liquid separation partition 204, cylinder 203 and electric demisting
Device 202；One end of the gas-liquid mixed component 201 is connected with cylinder 203, and the electrostatic precipitator 202 is arranged in the cylinder 203
Top, the gas-liquid separation partition 204 is in 202 lower part of electrostatic precipitator；The top of the wet scrubber 2 is also connected with cleaning
Sulfur dioxide (SO2) emissions mouth 105；The bottom of the wet scrubber 2 is liquid cell, for storing wash cycle liquid.
Gas-liquid mixed component 201 is in the middle part of the cylinder 203 with the position of cylinder 203 being connected；The gas-liquid is mixed
The other end of seaming element 201 is connected with the outlet of regenerating active carbon gas access 101 and the cleaning circulation pump 1.
Aminoacid stripping tower 9 is connected with brine discharge pump 10, and the bottom of the brine discharge pump 10 and the aminoacid stripping tower 9 connects
It connects；The lower part of the aminoacid stripping tower 9 has lye that mouth 103 and steam addition mouth 104 is added；Ammonia is arranged at the top of the aminoacid stripping tower 9
The bottom of gas discharge outlet 106, the filter 8 is provided with powdered carbon discharge outlet 102.
Regenerating active carbon gas pretreatment process method is carried out using above-mentioned regenerating active carbon gas preprocessing system device,
As shown in Figure 2, comprising the following steps:
(1) regeneration gas purifies: regenerating active carbon pneumatic transmission enters wet scrubber, in wet scrubber gas-liquid mixed component, with
Wash cycle liquid carries out gas-liquid and mixes strongly, removes major part NH3、HCl、HF、SO3And dust, using wet scrubber top
Clear liquid circulation section further wash, except the circulation drop and fine dusts of deentrainment, most the electric demisting depth through top is removed afterwards
Droplet, dust are removed, last clean high concentration SO2Gas is discharged to subsequent SO at the top of washer2Utilize workshop section；
(2) wash cycle liquid cleans: wash cycle liquid absorbs the NH in regeneration gas3、HCl、HF、SO3And powdered carbon, it is formed
Circulation fluid in contain a large amount of ammonium salts, chloride, fluoride, sulfate, suspended matter, this strand of solution is from the bottom of wet scrubber
Leakage fluid dram discharge is delivered to clarifier by pump, removes the suspended matter in cleaning solution, and clear liquid is sent to aminoacid stripping tower, clarifier row
Mud containing powdered carbon out is filtered, and breeze outlet, the fuel as other process are formed；
(3) ammonia stripping recycling: the clear liquid of clarifier discharge is sent to aminoacid stripping tower, is mixed in aminoacid stripping tower with lye, instead
Using steam as heat source liquid phase is stripped off in ammonia by the ammonia that should generate free state from solution, and obtained ammonia is de- for active carbon
Sulphur denitrification apparatus is as reducing agent；
(4) salt water outlet: the remaining main component in solution of ammonia stripping operation is sulfate, chloride, from aminoacid stripping tower
Bottom discharge, outlet processing, realize salt water separation.
In the step (3), the lye is NaOH, Na2CO3One of or combinations thereof.
It is the using effect of realization device in the step (1), top circulating clear liquid specific gravity is 1.0 ~ 1.05, pH value <
7.0。
In the step (2), cleaning solution is discharged from wet scrubber bottom leakage fluid dram, is sent by pumping to clarifier, dirty
Mud is discharged from bottom of clarifier, is pumped to filter, and filter residue is discharged from filter lower part bucket, filter leakage fluid dram and clarifier
Feed inlet is connected, and clear liquid is discharged from clarifier top, send to aminoacid stripping tower.
It is specific: the SO parsed from regenerating active carbon tower2The liquid of mixed gas and cleaning circulation pump 1 is in wet type
It meets in the gas-liquid mixed component 201 of washer 2, later into progress regenerating active carbon gas in the cylinder 203 of wet scrubber 2
Pretreatment.
The gas-liquid mixed component 201 of wet scrubber is arranged at 2 lower part of wet scrubber, and electrostatic precipitator 202 is arranged at top, and wet type is washed
Other end connection regenerating active carbon gas entrance 101 and the outlet of cleaning circulation pump 1 for washing the gas-liquid mixed component 201 of device 2, are washed
The entrance for washing circulating pump 1 is connected with 2 lower part of wet scrubber, the top of wet scrubber 2 and clean sulfur dioxide (SO2) emissions mouth 105
It is connected, bottom is connected with the entrance of cleaning solution discharge pump 3.
The outlet of cleaning solution discharge pump 3 is connected with clarifier 6, the import of the bottom access sludge pump 7 of clarifier 6, spoil disposal
Mud in clarifier 6 is extracted into filter 8 by pump 7, and the solid particulate matter under being filtered by filter 8 is through powdered carbon discharge outlet 102
Discharge, the filtrate of filter 8 returns to clarifier 6 out, and the clear liquid on 6 top of clarifier is sent to the lower part of aminoacid stripping tower 9.
The bottom of aminoacid stripping tower 9 is connected with brine discharge pump 10, and salt water is out-of-bounds handled through the submitting of brine discharge pump 10.
The lower part of aminoacid stripping tower 9 has lye that mouth 103 and steam addition mouth 104 is added, and ammonia row is arranged at the top of aminoacid stripping tower 7
Put mouth 106.
The SO parsed from regenerating active carbon tower2Mixed gas after treatment, most NH in mixed gas3、
HCl、HF、SO3, powdered carbon, vapor, acid mist etc. be removed, the high concentration SO of cleaning obtained2Gas is discharged at the top of washer
Into subsequent SO2Utilize workshop section.
Embodiment 2:
Unlike the first embodiment, the outlet of cleaning solution discharge pump 3 is fed directly to the lower part of aminoacid stripping tower 7, aminoacid stripping tower
9 bottom is connected with brine discharge pump 10, and salt water is handled through 10 outlet of brine discharge pump.
The free ammonia that aminoacid stripping tower 9 is isolated is as byproduct reuse or sale.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this
The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change
And improvement, these various changes and improvements fall within the scope of the claimed invention, if crystallizer is evaporated crystallization device
Or saturator device.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (6)
1. a kind of regenerating active carbon gas preprocessing system device, which is characterized in that include regeneration gas wet scrubbing system and
Wash liquid treating system；
Wherein, the regeneration gas wet scrubbing system includes wet scrubber, cleaning circulation pump, cleaning solution discharge pump, clear liquid
Pump, liquid tank；The washing liquid treating system includes clarifier, sludge pump, filter, aminoacid stripping tower, brine discharge pump；
The wet scrubber is connect with the cleaning circulation pump, cleaning solution discharge pump, liquid tank respectively, and the cleaning solution is arranged
Pump is connect with the lower part of the wet scrubber out, and the top of the wet scrubber is connected with the liquid tank, the clear liquid
Slot is connected with the clear liquid pump；
The cleaning solution discharge pump is connected with the clarifier, and the clarifier passes through the sludge pump phase with the filter
Even；The clarifier is connected with the aminoacid stripping tower and brine discharge pump in turn.
2. regenerating active carbon gas preprocessing system device according to claim 1, which is characterized in that the wet scrubbing
Device includes gas-liquid mixed component, gas-liquid separation partition, cylinder and electrostatic precipitator；One end of the gas-liquid mixed component and cylinder
It is connected, the top of the cylinder is arranged in the electrostatic precipitator, and the gas-liquid separation partition is in electrostatic precipitator lower part；The wet type
Clean sulfur dioxide (SO2) emissions mouth is also connected at the top of washer；The bottom of the wet scrubber is liquid cell, for storing
Wash cycle liquid.
3. regenerating active carbon gas preprocessing system device according to claim 2, which is characterized in that the gas-liquid mixed
Component is in the middle part of the cylinder with the position of cylinder being connected；The other end of the gas-liquid mixed component is connected with active carbon
The outlet of regeneration gas inlet and the cleaning circulation pump.
4. regenerating active carbon gas preprocessing system device according to claim 1, which is characterized in that the aminoacid stripping tower
It is connected with brine discharge pump, the brine discharge pump is connect with the bottom of the aminoacid stripping tower.
5. regenerating active carbon gas preprocessing system device according to claim 4, which is characterized in that the aminoacid stripping tower
Lower part have lye that mouth and steam is added mouth is added；There is ammonia emission mouth at the top of the aminoacid stripping tower.
6. regenerating active carbon gas preprocessing system device according to claim 1-5, which is characterized in that described
The bottom of filter is provided with powdered carbon discharge outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820499224.5U CN208244407U (en) | 2018-04-10 | 2018-04-10 | Regenerating active carbon gas preprocessing system device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820499224.5U CN208244407U (en) | 2018-04-10 | 2018-04-10 | Regenerating active carbon gas preprocessing system device |
Publications (1)
| Publication Number | Publication Date |
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| CN208244407U true CN208244407U (en) | 2018-12-18 |
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ID=64639674
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820499224.5U Expired - Fee Related CN208244407U (en) | 2018-04-10 | 2018-04-10 | Regenerating active carbon gas preprocessing system device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108283864A (en) * | 2018-04-10 | 2018-07-17 | 江苏德义通环保科技有限公司 | Regenerating active carbon gas preprocessing system device and pretreatment process method |
-
2018
- 2018-04-10 CN CN201820499224.5U patent/CN208244407U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108283864A (en) * | 2018-04-10 | 2018-07-17 | 江苏德义通环保科技有限公司 | Regenerating active carbon gas preprocessing system device and pretreatment process method |
| CN108283864B (en) * | 2018-04-10 | 2024-06-07 | 江苏德义通环保科技有限公司 | Pretreatment system device and pretreatment process method for activated carbon regeneration gas |
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