CN209205026U - Slurry filter and flue gas desulfurization device including the slurry filter - Google Patents
Slurry filter and flue gas desulfurization device including the slurry filter Download PDFInfo
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- CN209205026U CN209205026U CN201821999749.1U CN201821999749U CN209205026U CN 209205026 U CN209205026 U CN 209205026U CN 201821999749 U CN201821999749 U CN 201821999749U CN 209205026 U CN209205026 U CN 209205026U
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- screen pipe
- filter
- flue gas
- filtrate
- slurry
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Abstract
A kind of slurry filter and the flue gas desulfurization device including the slurry filter, the slurry filter include shell, filter assemblies, injection point, serum outlet and filtrate (liquid；Injection point is for input the slurries from desulphurization plant, and serum outlet is used to flow through the slurries after screen pipe and is back to desulphurization plant, and filtrate (liquid is used to export filtrate.Through the slurry filter, treated that most of slurries are back in desulfurizing tower continues on for desulfurization process, the slurries that another part filters out can be used for other purposes, thus the balance of slurries amount in desulphurization system had both been maintained, again extra slurries immediately, effectively handle and utilize, be had the function of water-saving, environmentally friendly.System is simple, reliable for operation, and operation energy consumption is small.
Description
Technical field
The utility model relates to a kind of slurry filters for flue gas desulfurization device, and filter and fill including the slurries
The flue gas desulfurization device set.
Background technique
In conventional wet lay flue gas desulphurization system, it will usually which multiple spray equipments and matched slurries are set in desulfurizing tower
Pump, under the driving of slurries pump power, desulfurization slurry is via desulfurization slurry pond-pipeline-slurries pump-pipeline-spray equipment nozzle
It is sprayed, after desulfurization slurry carries out washing desulphurization dedusting to flue gas, returns to slurry pool and continue cycling through use.In order to maintain desulfurization
The normal table of system is run, and the liquid level needs of slurry pool are maintained within a certain range, that is to say, that into the moisture of desulfurizing tower
It should keep centainly balancing with the moisture of outflow desulfurizing tower.But increased into the reduction of the flue-gas temperature of desulfurizing tower or humidity,
Or cooling etc. is carried out to desulfurization slurry, the evaporation capacity that all will lead in desulfurizing tower is reduced, and the moisture of condensation increases, causes
The increased amount of moisture is increased more than the amount for consuming and flowing out the reduction of desulfurizing tower moisture, slurries pit level in desulfurizing tower, thus to de-
The water balance of sulphur system brings difficulty.Even if reducing the dosage of the process water of desulfurizing tower as far as possible sometimes, still cannot maintain de-
Water balance in sulphur system.For this reason, it may be necessary to extract the water of certain amount and quality from desulfurization slurry.However, not having also at present
There is fairly simple, economic method.
If simply the slurries in desulphurization system are discharged, on the one hand will cause slurries cannot be fully utilized, and cause
Slurries and water resource waste, on the other hand due to the slurries do not meet discharge standard and can not direct emission, need further to locate
Reason, causes processing cost to increase.It is utilized once again if the moisture in slurries distilled by way of flash distillation, desulfurizing tower
Water content declines in the slurries of interior recycling, and sulphur-containing substance and various pollutants concentration increase, and pH value decline reduces desulfurization
Dust removing effects, and various material concentrations increase, and cause spray system injection uneven, and atomizing effect reduces, and influences desulfurization, removes
Dirt and other effects.Moreover, on-condensible gas is extracted out by vacuum pump in flash process, other environmental pollution is also resulted in.Moreover, dodging
It is at high cost to steam device manufacturing, takes up space huge, operation energy consumption itself is big.
Utility model content
In order to solve the above technical problems, the utility model provide a kind of slurry filter for flue gas desulfurization device with
And the flue gas desulfurization device including the slurry filter.Through the slurry filter, treated that most of slurries are back to
Continuing on for desulfurization process in desulfurizing tower, another part can be used for other purposes by the filtrate that screen pipe filter opening filters out, for example, with
In demisting (dirt) device rinsed in desulfurizing tower, or it is used for gypsum belt dewaterer filter cloth washing water, or reaching for desulfurization wastewater
To discharge or the preposition processing of desulfurization wastewater zero-emission, to not only maintain the balance of slurries amount in desulphurization system, but also to extra
Filtrate carry out immediately, effectively handle and utilize.
For this purpose, the utility model provides a kind of slurry filter for flue gas desulfurization device, which is characterized in that described
Slurry filter includes shell, filter assemblies, injection point, serum outlet and filtrate (liquid；The filter assemblies are located at institute
It states in shell, the filter assemblies include screen pipe；The injection point and serum outlet are open-ended with the screen pipe
It is connected；Multiple filter openings are provided on the tube wall of the screen pipe, the screen pipe is one or more；Outside the screen pipe
It encloses to form filtrate space, the filtrate space is connected to the filtrate (liquid；The injection point is set for inputting from desulfurization
Standby slurries, the serum outlet are used to flow through the slurries after whole screen pipe and are back to desulphurization plant, the filtrate (liquid
For exporting filtrate (slurries filtered out by screen pipe filter opening).
Preferably, the filter assemblies of the slurry filter further include the first tube sheet and the second tube sheet；Described
One tube sheet and the second tube sheet are equipped with through-hole；One end of the screen pipe passes inside or through the through-hole of first tube sheet, another
End passes inside or through the through-hole of second tube sheet；One end opening and shell and the first tube sheet of the screen pipe constitute the
One chamber is connected, and the other end opening of the screen pipe is connected with the second chamber that shell and the second tube sheet are constituted；Institute
It states shell, the first tube sheet, the second tube sheet and screen pipe and constitutes the filtrate space in the space that the screen pipe periphery is formed.
Preferably, the shell includes body part, the first end socket and the second end socket, the body part, the first end socket
And second end socket can be integrally formed that (division mode between the body part, the first end socket and the second end socket does not have at this time
Have special limitation), it is also possible to be formed by separable assembled.The shape of the body part, the first end socket and the second end socket does not have
Especially limitation.First end socket and the second end socket are also possible to connect a part of the pipeline of the slurry filter.
Preferably, first tube sheet is set to the body part of the shell and the junction of the first end socket, and described
Two tube sheets are set to the body part of the shell and the junction of the second end socket；The one end opening and first of the screen pipe
The first chamber that end socket and the first tube sheet are constituted is connected, the other end opening and the second end socket and the second pipe of the screen pipe
The second chamber that plate is constituted is connected；The body part of the shell, the first tube sheet, the second tube sheet and screen pipe are in the mistake
The space that chimney filter periphery is formed constitutes the filtrate space.
Preferably, the injection point is located on first end socket, and the serum outlet is located on second end socket；
Or the first chamber is divided into first branch's chamber and second branch's chamber, the injection point is set to the first branch
At end socket corresponding to chamber, the serum outlet is arranged at end socket corresponding to second branch chamber.
Preferably, the filtrate (liquid is located on the side wall of the case body portion.
Preferably, the filtrate space can be divided into two or more mutually isolated branch's filtrate spaces, Ge Gesuo
It states and is respectively arranged with filtrate (liquid on the side wall of the shell corresponding to branch's filtrate space.
Preferably, the filter opening aperture being arranged on the tube wall of the screen pipe is 0.01-50 microns, and the filtering length of tube is
20-300cm。
The screen pipe can be single tube screen pipe or multitube screen pipe.So-called single tube screen pipe refers to a screen pipe
In only one slurry channels, so-called multitube screen pipe refers in a screen pipe there are two the above slurry channels.
Preferably, the screen pipe is ceramic membrane filter tube or metal membrane filter pipe.Ceramic membrane filter tube or metal film mistake
The Related product of current market can be used in chimney filter.
Preferably, the filter assemblies with two or two more parallels or can be used in series.
On the other hand, the utility model also provides a kind of flue gas desulfurization device comprising desulfurizing tower, the desulfurizing tower include
The slurry pool of spray equipment and tower bottom setting, which is characterized in that the desulfurizing tower is connected with above-mentioned for flue gas desulfurization device
Slurry filter, wherein the slurry pool is directly or indirectly connected to the injection point of the slurry filter,
Preferably, the slurry pool is pumped by slurries and is connected to the injection point of the slurry filter, the slurries filtering
The serum outlet of device is connected to by pipeline with desulfurizing tower.
Preferably, the serum outlet of the slurry filter is connected to the spray equipment in the desulfurizing tower.
Preferably, the spray being made of the nozzle that multiple inner walls along the desulfurizing tower are circular layout is equipped in the desulfurizing tower
Shower device.
Preferably, the spray centerline for the nozzle that the multiple inner wall along the desulfurizing tower is circular layout is in desulfurizing tower
Constitute the circle of contact.
By multiple nozzles being circular layout along the desulfurization inner wall of tower and/or the spray centerline of multiple nozzles is de-
The circle of contact is constituted in sulphur tower, can to inside the desulfurizing tower flue gas and desulfurization slurry disturb, improve flue gas and desulfurization starched
Liquid is mixed effect, further increases desulfuration efficiency.
Beneficial effect
The slurry filter and flue gas desulfurization device of the utility model can be extracted by the filtering function of screen pipe
Partial moisture in desulfurization slurry to solve the equilibrium problem of slurries amount, and has section to reduce the amount of slurries in desulfurizing tower
Water, environmentally friendly function.System is simple, reliable for operation, and operation energy consumption is small.
Detailed description of the invention
Fig. 1 is schematic diagram of the utility model for a kind of embodiment of the slurry filter of flue gas desulfurization device
Fig. 2 is schematic diagram of the utility model for another embodiment of the slurry filter of flue gas desulfurization device
Fig. 3 is a kind of schematic diagram of embodiment of the utility model flue gas desulfurization device
Fig. 4 is the schematic diagram of another embodiment of the utility model flue gas desulfurization device
Fig. 5 is a kind of arrangement schematic diagram of nozzle in the desulfurizing tower of the utility model flue gas desulfurization device
Fig. 6 is another arrangement schematic diagram of nozzle in the desulfurizing tower of the utility model flue gas desulfurization device
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described being given for example only property of specific embodiment is illustrated the utility model, is not intended to limit the utility model.
Wherein, identical component uses identical label.
Fig. 1 is shown a kind of embodiment of the utility model for the slurry filter of flue gas desulfurization device and shows
It is intended to.As shown in Figure 1, the slurry filter includes shell 2, filter assemblies 3, injection point 4, serum outlet 5 and filtrate
Outlet 6.
The shell 2 includes body part 2a, the first end socket 2b and the second end socket 2c.
The filter assemblies 3 include more screen pipe 3a, the first tube sheet 3b and the second tube sheet 3c.The more screen pipe 3a
Along the radial parallel setting of the shell 2, multiple filter openings are provided on the tube wall of the screen pipe 3a, the filter opening aperture is
0.01-50 microns, the screen pipe 3a length is 20-300cm.The first tube sheet 3b is set to the body part of the shell 2
Divide the junction of 2a and the first end socket 2b, the second tube sheet 3c is set to the body part 2a and the second end socket of the shell 2
The junction of 2c, the first tube sheet 3b and the second tube sheet 3c are equipped with through-hole；One end of the screen pipe 3a passes inside or through
The through-hole of the first tube sheet 3b, the other end pass inside or through the through-hole of the second tube sheet 3c；One end of the screen pipe 3a
Portion's opening is connected with the first end socket 2b and the first tube sheet 3b first chamber 7 constituted, and the other end of the screen pipe 3a is opened
Mouth is connected with the second end socket 2c and the second tube sheet 3c second chamber 8 constituted；The body part 2a of the shell 2, the first pipe
Plate 3b, the second tube sheet 3c and screen pipe 3a constitute the filtrate space 9 in the space that the periphery of the screen pipe 3a is formed.
The injection point 4 is located on the first end socket 2b, and passes through the end of first chamber 7 and the screen pipe 3a
Opening in communication, the serum outlet 5 are located on the second end socket 2c, and pass through the second chamber 8 and screen pipe 3a's
The other end opening in communication.The filtrate (liquid 6 is located on the side wall of the body part 2a of the shell 2, and the filtrate is empty
Between 9 be connected to the filtrate (liquid 6.
The injection point 4 is for inputting the slurries from desulphurization plant, and the serum outlet 5 will be for that will flow through whole mistake
Slurries after chimney filter are back to desulphurization plant, and the filtrate (liquid 6 is for exporting the filtrate (slurry filtered out by screen pipe filter opening
Liquid).
The first end socket 2b and the second end socket 2c are also possible to one of the pipeline for connecting the slurry filter 1
Part.
Working principle: the desulfurization slurry containing certain solid particulate matter (generally 10-40%) from desulphurization plant is logical
It crosses injection point 4 to enter in the first chamber 7, second pipe interior followed by the first tube sheet 3b, the screen pipe 3a pipe
After plate 3c, serum outlet 5, it is back to desulphurization plant and continues on for desulfurization.The screen pipe 3a tube wall is equipped with multiple small
Filter opening, when desulfurization slurry flows through the screen pipe 3a, at certain pressure (0.01-5MPa), liquid in desulfurization slurry and
Particulate matter less than the filter opening aperture enters the filtrate space 9 by the filter opening, and flows out through the filtrate (liquid 6,
To realize the filtering to desulfurization slurry and extract part from desulfurization slurry containing the less moisture of solid particulate matter
Purpose, to solve the problems, such as that desulphurization system water balance creates condition.The size in the screen pipe 3a filter opening aperture determines transmission
The screen pipe 3a tube wall enters the particle size and concentration level of contained solid particulate matter in the liquid of the filtrate space 9.
For normal desulphurization system, when the filter opening aperture is less than 0.1 micron, the suspended matter of filtrate can in filtrate space 9
Reach the discharge standard of current administration request.
This filter type is cross-current flow, has preferable self-cleaning ability.It is maintained to flow through the desulfurization slurry of the screen pipe 3a
Flow velocity (0.5-6m/s) can wash away the filter cake or dirt being attached on the screen pipe 3a inner wall by filtration formation, with
Filter efficiency is improved, is prolonged the service life.
Preferentially, the filtrate space 9 can be divided into two or more mutually isolated branch's filtrate spaces, Ge Gesuo
It states and is respectively arranged with filtrate (liquid 6 on the body part 2a side wall corresponding to branch's filtrate space, each branch's filtrate is empty
Between can be with isolated operation or flushing.
The slurry filter 1 can be used with two or two more parallels, water purification yield can be improved at this time, but need
It will be using the slurries pump that flow is big, pressure head is small.It can also be used in series, water purification yield can be improved at this time, but need using stream
Measure slurries pump small, that pressure head is big.Concrete mode should be determines according to actual conditions.
Fig. 2 is shown another embodiment of the utility model for the slurry filter of flue gas desulfurization device and shows
It is intended to.As shown in Fig. 2, the first chamber 7 is divided into the first branch chamber 7a and in the slurry filter 1
Two branch chamber 7b, the injection point 4 are set at end socket corresponding to the first branch chamber 7a, and the serum outlet 5 is set
It sets at the end socket corresponding to the second branch chamber 7b, such situation is that two slurry filters 1 join end to end
And oppositely positioned series system.
A kind of schematic diagram of embodiment of the utility model flue gas desulfurization device is shown in Fig. 3.As shown in figure 3, institute
Stating flue gas desulfurization device includes desulfurizing tower 10, slurry filter 1 and slurries pump 11.Spray equipment is equipped in the desulfurizing tower 10
12 and bottom slurry pool 13.The injection point 4 of the slurry filter 1 is connected by slurries pump 11 with the slurry pool 13
Logical, the serum outlet 5 is connected to by pipeline with the desulfurizing tower 10.
It is de- containing certain solid particulate matter (generally 10-40%) in the slurry pool 13 in the desulfurizing tower 10
Sulphur slurries are entered in the first chamber 7 under the driving of slurries pump 11 by pipeline and injection point 4, followed by institute
It states in the first tube sheet 3b, the screen pipe 3a pipe, after the second tube sheet 3c, serum outlet 5, the desulfurizing tower 10 is flowed back to by pipeline
It is interior.When desulfurization slurry flows through the screen pipe 3a, at certain pressure (0.01-5MPa), liquid in desulfurization slurry and small
Particulate matter in the filter opening aperture enters the filtrate space 9 by the filter opening, and flows out through the filtrate (liquid 6, from
And realize to the filtering of desulfurization slurry and extract from desulfurization slurry purpose of the part containing the less moisture of solid particulate matter.
Into the slurry filter 1 desulfurization slurry from desulphurization system, flow back into desulfurization system again after the screen pipe 3a
System.
The schematic diagram of another embodiment of the utility model flue gas desulfurization device is shown in Fig. 4.As shown in figure 4,
On the basis of Fig. 3 illustrated embodiment, the serum outlet 5 of the slurry filter 1 is connected to the spray equipment 12.This
Sample can make full use of desulfurization slurry to improve desulfuration efficiency.
Fig. 5 is the arrangement schematic diagram of nozzle in the desulfurizing tower of the utility model flue gas desulfurization device.It is practical new at this
In the flue gas desulfurization device of type, as shown in figure 5, being equipped with by multiple wall circulars along the desulfurizing tower 10 in the desulfurizing tower 10
The spray equipment that the nozzle 14 of arrangement is constituted.The advantage of this arrangement is, can be to the existing matrix inside the desulfurizing tower 10
The spray equipment of formula arrangement is supplemented, and desulfurization slurry is made preferably to be full of the desulfurizing tower inner space, improves desulfuration efficiency.
Fig. 6 is the schematic diagram of another arrangement of nozzle in the desulfurizing tower of the utility model flue gas desulfurization device.In this reality
With in novel flue gas desulfurization device, being equipped in the desulfurizing tower 10 is circular layout by multiple along 10 inner wall of desulfurizing tower
The spray equipment that nozzle 14 is constituted.As shown in fig. 6, the spray centerline of multiple nozzles 14 constitutes the circle of contact in desulfurizing tower.
Such benefit is, can to inside the desulfurizing tower 10 flue gas and desulfurization slurry disturb, improve flue gas and desulfurization starched
Liquid is mixed effect, further increases desulfuration efficiency.
It will be appreciated by those skilled in the art that although the utility model is described in the way of multiple embodiments
, but not each embodiment only contains an independent technical solution.So narration is in specification just for the sake of clear
For the sake of, the skilled in the art should refer to the specification as a whole is understood, and by skill involved in each embodiment
Art scheme, which is regarded as, can be combined with each other into the modes of different embodiments to understand the protection scope of the utility model.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, under the premise of not departing from the conceptions and principles of the utility model made equivalent variations,
Modification and combination, should belong to the range of the utility model protection.
Claims (14)
1. a kind of slurry filter for flue gas desulfurization device, which is characterized in that the slurry filter include shell,
Filter assemblies, injection point, serum outlet and filtrate (liquid；The filter assemblies are located in the shell, the filter assemblies
Including screen pipe；The injection point and serum outlet are connected with the open-ended of the screen pipe；The pipe of the screen pipe
Multiple filter openings are provided on wall, the screen pipe is one or more；The periphery of the screen pipe forms filtrate space, the filter
Liquid space is connected to the filtrate (liquid；The injection point is for inputting the slurries from desulphurization plant, the serum outlet
It is back to desulphurization plant for the slurries after whole screen pipe will to be flowed through, the filtrate (liquid is for exporting filtrate.
2. the slurry filter according to claim 1 for flue gas desulfurization device, which is characterized in that the slurries mistake
The filter assemblies for filtering device further include the first tube sheet and the second tube sheet；First tube sheet and the second tube sheet are equipped with logical
Hole；One end of the screen pipe passes inside or through the through-hole of first tube sheet, and the other end passes inside or through second tube sheet
Through-hole；The one end opening of the screen pipe is connected with the first chamber that shell and the first tube sheet are constituted, the screen pipe
The other end opening with shell and the second tube sheet composition second chamber be connected；The shell, the first tube sheet, the second tube sheet
And screen pipe constitutes the filtrate space in the space that the screen pipe periphery is formed.
3. the slurry filter according to claim 2 for flue gas desulfurization device, which is characterized in that the shell packet
Body part, the first end socket and the second end socket are included, the body part, the first end socket and the second end socket are integrally formed, or
It is formed by separable assembled；
First tube sheet is set to the body part of the shell and the junction of the first end socket, and second tube sheet is set to
The junction of the body part of the shell and the second end socket；The one end opening of the screen pipe and the first end socket and the first pipe
The first chamber that plate is constituted is connected, and the second of the other end opening of the screen pipe and the second end socket and the second tube sheet composition
Chamber is connected；The body part of the shell, the first tube sheet, the second tube sheet and screen pipe are formed in the screen pipe periphery
Space constitute the filtrate space.
4. the slurry filter according to claim 3 for flue gas desulfurization device, which is characterized in that the slurries enter
Mouth is located on first end socket, and the serum outlet is located on second end socket；Or the first chamber is divided into
First branch's chamber and second branch's chamber, the injection point is set at end socket corresponding to first branch's chamber, described
Serum outlet is arranged at end socket corresponding to second branch chamber；
The filtrate (liquid is located on the side wall of the case body portion.
5. the slurry filter according to claim 2 for flue gas desulfurization device, which is characterized in that the filtrate is empty
Between can be divided into two or more mutually isolated branch's filtrate spaces, it is described corresponding to each branch's filtrate space
Filtrate (liquid is respectively arranged on the side wall of shell.
6. the slurry filter according to claim 1-5 for flue gas desulfurization device, which is characterized in that institute
Stating the filter opening aperture being arranged on the tube wall of screen pipe is 0.01-50 microns, and the filtering length of tube is 20-300cm.
7. the slurry filter according to claim 1-5 for flue gas desulfurization device, which is characterized in that institute
Stating screen pipe is single tube screen pipe or multitube screen pipe.
8. the slurry filter according to claim 1-5 for flue gas desulfurization device, which is characterized in that institute
Stating screen pipe is ceramic membrane filter tube or metal membrane filter pipe.
9. the slurry filter according to claim 1-5 for flue gas desulfurization device, which is characterized in that institute
Filter assemblies are stated using two or two more parallels or are used in series.
10. a kind of flue gas desulfurization device comprising desulfurizing tower, the desulfurizing tower include the slurries of spray equipment and tower bottom setting
Pond, which is characterized in that the desulfurizing tower is connected with the described in any item slurries mistakes for flue gas desulfurization device of claim 1-9
Filter device, wherein the slurry pool is directly or indirectly connected to the injection point of the slurry filter, the slurries
The serum outlet of filter device is directly or indirectly connected to desulfurizing tower.
11. flue gas desulfurization device according to claim 10, which is characterized in that the slurry pool by slurries pump with it is described
The injection point of slurry filter is connected to.
12. flue gas desulfurization device described in 0 or 11 according to claim 1, which is characterized in that the slurry filter it is described
Serum outlet is connected to the spray equipment in the desulfurizing tower.
13. flue gas desulfurization device according to claim 12, which is characterized in that be equipped with by multiple in the desulfurizing tower along institute
State the spray equipment that the nozzle that the inner wall of desulfurizing tower is circular layout is constituted.
14. flue gas desulfurization device according to claim 13, which is characterized in that the multiple inner wall along the desulfurizing tower
The spray centerline for the nozzle being circular layout constitutes the circle of contact in desulfurizing tower.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821999749.1U CN209205026U (en) | 2018-11-30 | 2018-11-30 | Slurry filter and flue gas desulfurization device including the slurry filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821999749.1U CN209205026U (en) | 2018-11-30 | 2018-11-30 | Slurry filter and flue gas desulfurization device including the slurry filter |
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| CN209205026U true CN209205026U (en) | 2019-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331638A (en) * | 2018-11-30 | 2019-02-15 | 北京兴晟科技有限公司 | Slurry filter and flue gas desulfurization device including the slurry filter |
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2018
- 2018-11-30 CN CN201821999749.1U patent/CN209205026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331638A (en) * | 2018-11-30 | 2019-02-15 | 北京兴晟科技有限公司 | Slurry filter and flue gas desulfurization device including the slurry filter |
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