CN209302284U - A kind of slurries cooling device for flue gas desulfurization device - Google Patents
A kind of slurries cooling device for flue gas desulfurization device Download PDFInfo
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- CN209302284U CN209302284U CN201822001152.XU CN201822001152U CN209302284U CN 209302284 U CN209302284 U CN 209302284U CN 201822001152 U CN201822001152 U CN 201822001152U CN 209302284 U CN209302284 U CN 209302284U
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- slurries
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- screen pipe
- heat
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- 239000002002 slurry Substances 0.000 title claims abstract description 221
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 64
- 230000023556 desulfurization Effects 0.000 title claims abstract description 64
- 238000001816 cooling Methods 0.000 title claims abstract description 45
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000003546 flue gas Substances 0.000 title claims abstract description 33
- 230000000712 assembly Effects 0.000 claims abstract description 15
- 238000000429 assembly Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000000706 filtrate Substances 0.000 claims description 55
- 210000002966 serum Anatomy 0.000 claims description 43
- 238000002347 injection Methods 0.000 claims description 39
- 239000007924 injection Substances 0.000 claims description 39
- 239000007788 liquid Substances 0.000 claims description 34
- 239000002826 coolant Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 230000003009 desulfurizing effect Effects 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 235000019504 cigarettes Nutrition 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000013618 particulate matter Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009295 crossflow filtration Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
A kind of slurries cooling device for flue gas desulfurization device, including heat-exchanger rig and slurry filter；The slurry filter includes filter assemblies.The partial moisture in desulfurization slurry is extracted by the filtering function of slurry filter, to reduce the amount of slurries in desulfurizing tower, it can be realized to the cooling of flue gas, reduce pollutant emission and white cigarette phenomenon, also solve the problem that water balance problem, and have 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 slurries cooling devices with slurries filtering function for flue gas desulfurization device.
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.Flue gas and desulfurization are starched
Enter saturation state after liquid mixing, white cigarette phenomenon occurs when it emerges chimney and under certain meteorological condition, and takes out of a large amount of
Pollutant enters atmosphere, forms pollution.To solve this problem, in slurries pump intake or series connection slurries cooling device can be exported,
By, come cooled flue gas, reducing water capacity in flue gas, and then reduce white cigarette phenomenon and pollutant emission to desulfurization slurry.But due to
After flue gas is cooled and reduces humidity, it will cause the moisture of condensation in desulfurizing tower to increase, destroy the level in desulfurizing tower
Weighing apparatus, causes water level to increase, and then influences the normal table operation of desulphurization system.Even if reducing the technique of desulfurizing tower as far as possible sometimes
The dosage of water still cannot maintain the water balance in desulphurization system.For this reason, it may be necessary to extracted from desulfurization slurry certain amount and
The water of quality.However, there is presently no fairly simple, economic methods.
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 it is a kind of in flue gas desulfurization device have slurries filtering
The slurries cooling device of function.Through the slurry filter, treated that most of slurries are back in desulfurizing tower continues on for
Desulfurization process, another part can be used for other purposes by the filtrate that screen pipe filter opening filters out, for example, for rinsing in desulfurizing tower
Demisting (dirt) device, or it is used for gypsum belt dewaterer filter cloth washing water, or reach discharge or desulfurization wastewater for desulfurization wastewater
The preposition processing of zero-emission, to not only maintain the balance of slurries amount in desulphurization system, but also to extra filtrate carry out immediately, have
The processing of effect ground and utilization.
For this purpose, the utility model provides a kind of slurries cooling device for flue gas desulfurization device, which is characterized in that described
Slurries cooling device includes heat-exchanger rig and slurry filter；
The heat-exchanger rig includes heat-exchanging component, the first injection point, the first serum outlet, cooling medium entrance and cooling
Media outlet；Preferably, the slurry channels of the heat-exchanger rig are straight channel.
The slurry filter includes that shell, filter assemblies, the second injection point, the second serum outlet and filtrate go out
Mouthful；The filter assemblies are located in the shell, and the filter assemblies include screen pipe；Second injection point and the second slurry
Liquid outlet is connected with the open-ended of the screen pipe；Multiple filter openings, the filtering are provided on the tube wall of the screen pipe
Pipe is one or more；The periphery of the screen pipe forms filtrate space, and the filtrate space is connected to the filtrate (liquid；Institute
Filtrate (liquid is stated for exporting filtrate (slurries filtered out by screen pipe filter opening).
Second injection point of the slurry filter is for inputting the slurries from desulphurization plant, the heat exchange
First injection point of device is connected with second serum outlet of the slurry filter, the heat-exchanger rig
First serum outlet be used to slurries after cooling being back to desulphurization plant；
Alternatively,
First injection point of the heat-exchanger rig is for inputting the slurries from desulphurization plant, the heat-exchanger rig
First serum outlet be connected with second injection point of the slurry filter, the slurry filter
Second serum outlet be used to flow through the slurries after whole screen pipe and return to desulphurization plant；
Alternatively,
The heat-exchanger rig further includes slurries input leading portion, and the slurries input leading portion is connected with the heat-exchanging component,
There is slurries branch outflux on slurries input leading portion side wall, the of the slurries branch outflux and the slurry filter
The connection of two injection points；First injection point of the heat-exchanger rig is for inputting the slurries from desulphurization plant；The slurries
The slurries branch outflux on input leading portion side wall is used for a part of slurry diversion that will input to the slurry filter,
First serum outlet of the heat-exchanger rig is used to another part being delivered to desulfurization through heat-exchanging component slurries after cooling
Spray equipment in equipment；Second serum outlet of the slurry filter will be for that will flow through the slurry after whole screen pipe
Liquid is back to desulphurization plant.Optionally, the second serum outlet of the slurry filter can be with the of the heat-exchanger rig
One serum outlet or the first injection point converge.
Preferably, the slurries tributary exit on the slurries input leading portion side wall is provided with filter screen, the filter screen
Within the scope of the streamline that desulfurization slurry is flowed to the heat-exchanging component.
Preferably, the heat-exchanger rig is pipe heat exchanger or plate heat exchanger.
Preferably, the cooling medium is water.
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 of the slurry filter includes body part, the first end socket and the second end socket, the ontology
Partially, the first end socket and the second end socket can be integrally formed (at this time between the body part, the first end socket and the second end socket
Division mode be not particularly limited), be also possible to be formed by separable assembled.The body part, the first end socket and the second envelope
The shape of head is not particularly limited.First end socket and the second end socket are also possible to connect the pipeline of the slurry filter
A part.
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, second injection point is located on first end socket, and second serum outlet is located at described
On two end sockets；Or the first chamber is divided into first branch's chamber and second branch's chamber, second injection point
It is set at end socket corresponding to first branch's chamber, second serum outlet setting is corresponding to second branch chamber
End socket at；
Preferably, the filtrate (liquid is located on the side wall of 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.
The slurry filter and the heat-exchanger rig in the slurries cooling device can be integral type, can also be with
It is split type.
Beneficial effect
Using the utility model, the part in desulfurization slurry is extracted by the filtering function of the screen pipe of slurry filter
Moisture, to reduce the amount of slurries in desulfurizing tower.It can be realized to the cooling of flue gas, reduce pollutant emission and white cigarette is existing
As also solving the problem that water balance problem, and have the function of water-saving, environmentally friendly.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 slurries cooling device of flue gas desulfurization device
Fig. 2 is the schematic diagram of another embodiment of the slurry filter in the utility model slurries cooling device
Fig. 3 is schematic diagram of the utility model for another embodiment of the slurries cooling device of flue gas desulfurization device
Fig. 4 is schematic diagram of the utility model for another embodiment of the slurries cooling device of 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 schematic diagram of the utility model for a kind of embodiment of the slurries cooling device of flue gas desulfurization device.
As shown in Figure 1, the slurries cooling device includes heat-exchanger rig 1 and slurry filter 2；
The heat-exchanger rig 1 includes heat-exchanging component 3, the first injection point 4, the first serum outlet 5, cooling medium entrance 6
With cooling medium outlet 7, the slurry channels of the heat-exchanger rig 1 are straight channel.
The slurry filter 2 includes shell 8, filter assemblies 9, the second injection point 10,11 and of the second serum outlet
Filtrate (liquid 12.
The shell 8 includes body part 8a, the first end socket 8b and the second end socket 8c.The first end socket 8b and the second envelope
Head 8c is also possible to a part of the pipeline for connecting the slurry filter 2.
The filter assemblies 9 include more screen pipe 9a, the first tube sheet 9b and the second tube sheet 9c.The more screen pipe 9a
Along the radial parallel setting of the shell 8, multiple filter openings are provided on the tube wall of the screen pipe 9a, the filter opening aperture is
0.01-50 microns, the screen pipe 9a length is 20-300cm.The first tube sheet 9b is set to the body part of the shell 8
Divide the junction of 8a and the first end socket 8b, the second tube sheet 9c is set to the body part 8a and the second end socket of the shell 8
The junction of 8c, the first tube sheet 9b and the second tube sheet 9c are equipped with through-hole；One end of the screen pipe 9a passes inside or through
The through-hole of the first tube sheet 9b, the other end pass inside or through the through-hole of the second tube sheet 9c；One end of the screen pipe 9a
Portion's opening is connected with the first end socket 8b and the first tube sheet 9b first chamber 13 constituted, and the other end of the screen pipe 9a is opened
Mouth is connected with the second end socket 8c and the second tube sheet 9c second chamber 14 constituted；The body part 8a of the shell 8, the first pipe
Plate 9b, the second tube sheet 9c and screen pipe 9a constitute the filtrate space 15 in the space that the periphery of the screen pipe 9a is formed.
Second injection point 10 is located on the first end socket 8b, and passes through first chamber 13 and the screen pipe 9a
It is open-ended be connected, second serum outlet 11 is located on the second end socket 8c, and pass through second chamber 14 and institute
State the other end opening in communication of screen pipe 9a.The filtrate (liquid 12 is located at the side wall of the body part 8a of the shell 8
On, the filtrate space 15 is connected to the filtrate (liquid 12.
Second injection point 10 of the slurry filter 2 is for inputting the slurries from desulphurization plant；It is described
First injection point 4 of heat-exchanger rig 1 is connected with second serum outlet 11 of the slurry filter 2, institute
First serum outlet 5 for stating heat-exchanger rig 1 is used to slurries after cooling being back to desulphurization plant；The filtrate (liquid 12
For exporting filtrate.
Working principle: the desulfurization slurry containing certain solid particulate matter (generally 10-40%) from desulphurization plant exists
Second injection point 10 for passing through the slurry filter 2 under the driving of slurries pump (not shown) enters the slurry
In the first chamber 13 of liquid filter device 2, the interior, second end followed by the first tube sheet 9b, the screen pipe 9a pipe
After tube sheet 9c, the second serum outlet 11, pass through the slurry in first injection point 4 of the heat-exchanger rig 1, heat-exchanging component 3
The heat-exchanger rig 1 is flowed out after liquid channel, first serum outlet 5.The screen pipe 9a tube wall is equipped with multiple small
Filter opening, when desulfurization slurry flows through the screen pipe 9a, at certain pressure (0.01-5MPa), liquid in desulfurization slurry and
Particulate matter less than the filter opening aperture enters the filtrate space 15 by the filter opening, and flows through the filtrate (liquid 12
Out, to realize the filtering to desulfurization slurry and extract the part moisture less containing solid particulate matter from desulfurization slurry
Purpose, to solve the problems, such as that desulphurization system water balance creates condition.The pore size of the filter opening of the screen pipe 9a determines
Enter the particle size and concentration of contained solid particulate matter in the liquid of the filtrate space 15 through the screen pipe 9a tube wall
Just.For normal desulphurization system, when the filter opening aperture is less than 0.1 micron, filtrate is outstanding in filtrate space 15
Floating object can reach the discharge standard of current administration request.
After desulfurization slurry enters the slurry channels of the heat-exchanging component 3 in the heat-exchanger rig 1, transfer heat into institute
The cooling medium (being water in present embodiment) for stating heat-exchanger rig 1, cools to desulfurization slurry to realize, and in turn
Flue gas is cooled down by desulfurization slurry after cooling.
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 9a
Flow velocity (0.5-6m/s) can wash away the filter cake or dirt being attached on the screen pipe 9a inner wall by filtration formation, with
Filter efficiency is improved, is prolonged the service life.
Preferentially, the filtrate space 15 can be divided into two or more mutually isolated branch's filtrate spaces, each
Filtrate (liquid 12, each branch's filtrate are respectively arranged on the body part 8a side wall corresponding to branch's filtrate space
It space can be with isolated operation or flushing.
As the modification of Fig. 1 illustrated embodiment, first injection point 10 for being also possible to the heat-exchanger rig 1 is used
In slurries of the input from desulphurization plant, first serum outlet 5 and the slurry filter 2 of the heat-exchanger rig 1
Second injection point 10 be connected, second serum outlet 11 of the slurry filter 2 is whole for that will flow through
Slurries after root screen pipe return to desulphurization plant, and the filtrate (liquid 12 is for exporting filtrate.
The slurry filter 2 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.
Showing for another embodiment of the slurry filter 2 in the utility model slurries cooling device is shown in Fig. 2
It is intended to.As shown in Fig. 2, in the slurry filter 2, the first chamber 13 be divided into the first branch chamber 13a and
Second branch chamber 13b, second injection point 10 are set at end socket corresponding to the first branch chamber 13a, and described
Two serum outlets 11 are arranged at end socket corresponding to the second branch chamber 13b, and such situation is two slurries mistakes
Filter device 2 joins end to end and oppositely positioned series system.
Fig. 3 is schematic diagram of the utility model for another embodiment of the slurries cooling device of flue gas desulfurization device.
As shown in figure 3, the slurries cooling device includes heat-exchanger rig 1 and slurry filter 2；
The heat-exchanger rig 1 includes heat-exchanging component 3, the first injection point 4, the first serum outlet 5, cooling medium entrance 6
With cooling medium outlet 7, the slurry channels of the heat-exchanger rig 1 are straight channel.
The slurry filter 2 includes shell 8, filter assemblies 9, the second injection point 10,11 and of the second serum outlet
Filtrate (liquid 12.
The shell 8 includes body part 8a, the first end socket 8b and the second end socket 8c.The first end socket 8b and the second envelope
Head 8c is also possible to a part of the pipeline for connecting the slurry filter 2.
The filter assemblies 9 include more screen pipe 9a, the first tube sheet 9b and the second tube sheet 9c.The more screen pipe 9a
Along the radial parallel setting of the shell 8, multiple filter openings are provided on the tube wall of the screen pipe 9a, the filter opening aperture is
0.01-50 microns, the screen pipe 9a length is 20-300cm.The first tube sheet 9b is set to the body part of the shell 8
Divide the junction of 8a and the first end socket 8b, the second tube sheet 9c is set to the body part 8a and the second end socket of the shell 8
The junction of 8c, the first tube sheet 9b and the second tube sheet 9c are equipped with through-hole；One end of the screen pipe 9a passes inside or through
The through-hole of the first tube sheet 9b, the other end pass inside or through the through-hole of the second tube sheet 9c；One end of the screen pipe 9a
Portion's opening is connected with the first end socket 8b and the first tube sheet 9b first chamber 13 constituted, and the other end of the screen pipe 9a is opened
Mouth is connected with the second end socket 8c and the second tube sheet 9c second chamber 14 constituted；The body part 8a of the shell 8, the first pipe
Plate 9b, the second tube sheet 9c and screen pipe 9a constitute the filtrate space 15 in the space that the periphery of the screen pipe 9a is formed.
Second injection point 10 is located on the first end socket 8b, and passes through first chamber 13 and the screen pipe 9a
It is open-ended be connected, second serum outlet 11 is located on the second end socket 8c, and pass through second chamber 14 and institute
State the other end opening in communication of screen pipe 9a.The filtrate (liquid 12 is located at the side wall of the body part 8a of the shell 8
On, the filtrate space 15 is connected to the filtrate (liquid 12.The filtrate (liquid 12 is for exporting filtrate.
The heat-exchanger rig 1 further includes slurries input leading portion 16, the slurries input leading portion 16 and 3 phase of heat-exchanging component
Connection, the slurries, which input, has slurries branch outflux 17 on 16 side wall of leading portion, the slurries branch outflux 17 and the slurries
Second injection point 10 of filter device is connected to.Slurries tributary exit on slurries input 16 side wall of leading portion was provided with
Strainer 18, the filter screen 18 are located within the scope of the streamline that desulfurization slurry is flowed to the heat-exchanging component 3.The heat-exchanger rig 1
The first injection point 4 for inputting the slurries from desulphurization plant；The slurries on slurries input 16 side wall of leading portion
Branch outflux 17 is used to the fraction slurries of input branching to the slurry filter 2, and described the first of the heat-exchanger rig 1
Serum outlet 5 is used to another part being delivered to the spray equipment in desulphurization plant (in figure through the slurries after cooling of heat-exchanging component 3
It is not shown).Second serum outlet 11 of the slurry filter 2 is used to flow through the slurries return after whole screen pipe
To desulphurization plant.
Working principle: enter in the slurries input leading portion 16 of the heat-exchanger rig 1 and contain certain solid particulate matter
The desulfurization slurry of (generally 10-40%), under the driving of slurries pump (not shown), a part is filled by the heat exchange
After setting the slurry channels in 1 heat-exchanging component 3, the heat-exchanger rig 1 is flowed out from first serum outlet 5, passes through pipe
Road is input to the spray equipment (not shown) in de- desulphurization plant.Another part desulfurization slurry passes through 18 He of filter screen
Slurries branch outflux 17 enters second injection point 10 of the slurry filter 2, flows into the slurry filter 2
It is interior, followed by the first tube sheet 9b, screen pipe 9a pipe in, the second tube sheet 9c, then from the second serum outlet 11 flow out,
It again returns in desulphurization plant.The screen pipe 9a tube wall is equipped with multiple small filter openings, when desulfurization slurry flows through the mistake
When chimney filter 9a, at certain pressure (0.01-5MPa), the liquid in desulfurization slurry and the particulate matter warp less than the filter opening aperture
The filter opening is crossed into the filtrate space 15, and flow out through the filtrate (liquid 12, to realize the mistake to desulfurization slurry
Filter and purpose of the extraction part containing the less moisture of solid particulate matter from desulfurization slurry.
It transfers heat to after the slurry channels for the heat-exchanging component 3 that desulfurization slurry enters in the heat-exchanger rig 1 into institute
The cooling medium (being water in present embodiment) for stating heat-exchanger rig 1, cools to desulfurization slurry to realize, and in turn
Flue gas is cooled down by desulfurization slurry after cooling, reduces externally discharge.
Filter type in above-mentioned slurries cooling device is double-filtration, and is cross-flow filtration.The first order be filtered into
The desulfurization slurry entered in the slurries input leading portion 16 of the heat-exchanger rig 1 is filtered by the filter screen 18, due to described
Filter screen 18 is located within the scope of the streamline that desulfurization slurry is flowed to the heat-exchanging component 3 of the heat-exchanger rig 1, in this way, not having
It can be rinsed and be taken away along the desulfurization slurry for flowing to the heat-exchanging component 3 in time by the coarse granule or dirt of filter screen, with
The problems such as reducing filter cake and filter net jam improves its operational reliability, reduces maintenance.In order to reduce to the filter screen 18
It washes away and the influence to desulfurization slurry flowing, the inner wall that the filter screen 18 and the slurries are preferably inputted leading portion 16 is substantially flat
Together.If its excessive recessed inner wall is even into in the pipeline being connected with slurries branch outflux 17, it will leave desulfurization and starch
Liquid stream cannot then be washed away not over the coarse granule of filter screen or dirt in time to the flow range of the heat-exchanging component 3
With take away, or even form the filter cake that is attached on filter screen 18, it will influence the working efficiency of the filter screen, increase maintenance.
If protruding the inner wall of the slurries input leading portion 16 too much, it will increase washing away to the strainer 18, reduce and use the longevity
Life.
The second level be filtered by the filter screen 18 enter the slurry filter 2 containing particulate matter it is less, compared with
Small desulfurization slurry, the filtering when it flows through the screen pipe 9a with certain flow velocity (0.5-6m/s).In the process, may be used
To wash away because filtration forms the filter cake or dirt that are attached on the screen pipe 9a inner wall, to improve filter efficiency, extend
Service life.This filter type has preferable self-cleaning ability.
The slurry filter and the heat-exchanger rig in the slurries cooling device can be integral type, can also be with
It is split type.
As shown in figure 4, the second serum outlet 11 of the slurry filter can be with the first slurry of the heat-exchanger rig 1
Converge liquid outlet 5.Certainly, the second serum outlet 11 of the slurry filter can also be with the first of the heat-exchanger rig 1
Injection point 4 converges, and such benefit is the slurry flow that can be improved into the heat-exchanger rig 1, improves heat exchange effect
Rate.
Claims (12)
1. a kind of slurries cooling device for flue gas desulfurization device, which is characterized in that the slurries cooling device includes heat exchange
Device and slurry filter；
The heat-exchanger rig includes heat-exchanging component, the first injection point, the first serum outlet, cooling medium entrance and cooling medium
Outlet；
The slurry filter includes shell, filter assemblies, the second injection point, the second serum outlet and filtrate (liquid；Institute
It states filter assemblies to be located in the shell, the filter assemblies include screen pipe；Second injection point and the second slurries go out
Mouth is connected with the open-ended of the screen pipe；Multiple filter openings are provided on the tube wall of the screen pipe, the screen pipe is
One or more；The periphery of the screen pipe forms filtrate space, and the filtrate space is connected to the filtrate (liquid；The filter
Liquid is exported for exporting filtrate；
Second injection point of the slurry filter is for inputting the slurries from desulphurization plant, the heat-exchanger rig
First injection point be connected with second serum outlet of the slurry filter, the institute of the heat-exchanger rig
The first serum outlet is stated for slurries after cooling to be back to desulphurization plant；Alternatively,
First injection point of the heat-exchanger rig is for inputting the slurries from desulphurization plant, the institute of the heat-exchanger rig
It states the first serum outlet to be connected with second injection point of the slurry filter, the institute of the slurry filter
It states slurries of second serum outlet for after flowing through whole screen pipe and returns to desulphurization plant；Alternatively,
The heat-exchanger rig further includes slurries input leading portion, and the slurries input leading portion is connected with the heat-exchanging component, described
Slurries, which input, has slurries branch outflux on leading portion side wall, the second slurry of the slurries branch outflux and the slurry filter
The connection of liquid entrance；First injection point of the heat-exchanger rig is for inputting the slurries from desulphurization plant；The slurries input
A part of slurry diversion that the slurries branch outflux on leading portion side wall is used to input is described to the slurry filter
First serum outlet of heat-exchanger rig is used to another part being delivered to desulphurization plant through heat-exchanging component slurries after cooling
In spray equipment；Second serum outlet of the slurry filter is used to flow through the slurries after whole screen pipe and returns
It is back to desulphurization plant；
Optionally, the second serum outlet of the slurry filter and the first serum outlet of the heat-exchanger rig or the first slurry
Liquid entrance converges.
2. the slurries cooling device according to claim 1 for flue gas desulfurization device, which is characterized in that the slurries are defeated
Enter the slurries tributary exit on leading portion side wall and be provided with filter screen, the filter screen is located at desulfurization slurry to the heat-exchanging component
Within the scope of the streamline of flowing.
3. the slurries cooling device according to claim 2 for flue gas desulfurization device, which is characterized in that the heat exchange dress
The slurry channels set are straight channel.
4. the slurries cooling device according to claim 1-3 for flue gas desulfurization device, which is characterized in that institute
The filter assemblies for stating slurry filter further include the first tube sheet and the second tube sheet；On first tube sheet and the second tube sheet
Equipped with through-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 described
The through-hole of two tube sheets；The one end opening of the screen pipe is connected with the first chamber that shell and the first tube sheet are constituted, described
The other end opening of screen pipe is connected with the second chamber that shell and the second tube sheet are constituted；The shell, the first tube sheet,
The space composition filtrate space that two tube sheets and screen pipe are formed in the screen pipe periphery.
5. the slurries cooling device according to claim 4 for flue gas desulfurization device, which is characterized in that the slurries mistake
The shell for filtering device includes body part, the first end socket and the second end socket, and the body part, the first end socket and the second end socket are
It is integrally formed or 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.
6. the slurries cooling device according to claim 5 for flue gas desulfurization device, which is characterized in that second slurry
Liquid entrance is located on first end socket, and second serum outlet is located on second end socket；Or the first chamber
It is divided into first branch's chamber and second branch's chamber, second injection point is set to corresponding to first branch's chamber
At end socket, second serum outlet is arranged at end socket corresponding to second branch chamber；
The filtrate (liquid is located on the side wall of case body portion.
7. the slurries cooling device according to claim 4 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.
8. the slurries cooling device according to claim 1-3 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.
9. the slurries cooling device according to claim 1-3 for flue gas desulfurization device, which is characterized in that institute
Stating screen pipe is single tube screen pipe or multitube screen pipe.
10. the slurries cooling device according to claim 1-3 for flue gas desulfurization device, which is characterized in that
The screen pipe is ceramic membrane filter tube or metal membrane filter pipe.
11. the slurries cooling device according to claim 1-3 for flue gas desulfurization device, which is characterized in that
The filter assemblies are using two or two more parallels or are used in series.
12. the slurries cooling device according to claim 1-3 for flue gas desulfurization device, which is characterized in that
The slurry filter and the heat-exchanger rig in the slurries cooling device are integral type or split type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822001152.XU CN209302284U (en) | 2018-11-30 | 2018-11-30 | A kind of slurries cooling device for flue gas desulfurization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822001152.XU CN209302284U (en) | 2018-11-30 | 2018-11-30 | A kind of slurries cooling device for flue gas desulfurization device |
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| CN201822001152.XU Expired - Fee Related CN209302284U (en) | 2018-11-30 | 2018-11-30 | A kind of slurries cooling device for flue gas desulfurization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425190A (en) * | 2020-09-24 | 2022-05-03 | 中国石油化工股份有限公司 | Heat exchange filtering device, hydrogenation system and hydrogenation method for preparing hydrogen peroxide |
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2018
- 2018-11-30 CN CN201822001152.XU patent/CN209302284U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425190A (en) * | 2020-09-24 | 2022-05-03 | 中国石油化工股份有限公司 | Heat exchange filtering device, hydrogenation system and hydrogenation method for preparing hydrogen peroxide |
| CN114425190B (en) * | 2020-09-24 | 2023-12-12 | 中国石油化工股份有限公司 | Hydrogenation system and hydrogenation method for preparing hydrogen peroxide |
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