CN107983058A - High-tower granulation dust drainage atomization cleaning dust mist device - Google Patents
High-tower granulation dust drainage atomization cleaning dust mist device Download PDFInfo
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- CN107983058A CN107983058A CN201810053584.7A CN201810053584A CN107983058A CN 107983058 A CN107983058 A CN 107983058A CN 201810053584 A CN201810053584 A CN 201810053584A CN 107983058 A CN107983058 A CN 107983058A
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- dust
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- atomization
- drainage atomization
- cleaning
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- 238000000889 atomisation Methods 0.000 title claims abstract description 62
- 239000000428 dust Substances 0.000 title claims abstract description 60
- 239000003595 mist Substances 0.000 title claims abstract description 45
- 238000004140 cleaning Methods 0.000 title claims abstract description 36
- 238000005469 granulation Methods 0.000 title claims abstract description 31
- 230000003179 granulation Effects 0.000 title claims abstract description 31
- 238000005406 washing Methods 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000007921 spray Substances 0.000 claims abstract description 10
- 239000013589 supplement Substances 0.000 claims abstract description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 16
- 239000000243 solution Substances 0.000 description 13
- 235000013877 carbamide Nutrition 0.000 description 8
- 239000004202 carbamide Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005200 wet scrubbing Methods 0.000 description 3
- 206010028347 Muscle twitching Diseases 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000036461 convulsion Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000005206 flow analysis Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009688 liquid atomisation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/12—Washers with plural different washing sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention discloses a kind of high-tower granulation dust to drain atomization cleaning dust mist device, circulator is collected including efficiently drainage atomization wash mill, high-effective dust-removing mist self-stripping unit and cleaning solution, wherein efficiently drainage atomization wash mill is provided with the positive drainage atomization washing unit of the positive drainage atomization washing unit of the first order and the second level from bottom to top, each washing unit is connected and composed by the spray tube that more longitudes and latitudes interlock, the multiple positive drainage atomization washing nozzles of every spray tube installation;High-effective dust-removing mist self-stripping unit is located on the positive drainage atomization washing unit in the second level, is provided with demister and on-line cleaning nozzle from bottom to top;Cleaning solution collects circulator and is arranged to catch tray, downspout, circulating slot, recycle liquid pump, supplement liquid pump, filter from top to bottom.The device can efficiently, low consumption, the recycling high-tower granulation dust of economy, make emission compliance.
Description
Technical field
The invention belongs to environmental technology field, is related to a kind of for administering urea/ammonium nitrate high-tower granulation dust emission not
Drainage atomization cleaning dust mist device up to standard.
Background technology
High-tower granulation and fluidized bed prilling are current granulating technique forms most important in the world, in China with high-tower granulation
The production capacity accounting of technology type is up to 85%, and Chinese particulate matter limits discharge standard as 150mg/Nm3, and during high-tower granulation
Tower top can waft and brim with a large amount of white dust-containing tail gas, and the actual discharge value of these dust is often as high as 200~500mg/Nm3, much
Higher than existing limit value 150mg/Nm3, not only pollute atmospheric environment but also cause the severe attrition waste of finished product dust, at the same time
These dust can drift the ground in several kilometers with tail gas, cause vegetation to wither, personnel health is damaged, with national environmental protection tune
Control policy stringent and deeply, many enterprises limit the production or order halt production because of dust emission problem, so high-tower granulation dust
Governing problem is very urgent.
The high-tower granulation treating flour dust recovery technology overwhelming majority is wet scrubbing dedusting technology at present, but since high tower is made
Grain is mostly gravity-flow ventilation, and pressure head is smaller, and increased wet scrubbing dust-extraction unit is removed due to traditional sprinkler heads washing section and conventional filler
The vapour lock of dirt section influences, and causing the tail gas of gravity-flow ventilation all can not smoothly discharge tower top, due to the factor of building the pressure, under product yield
Drop 10%~15%, 10~15 degrees Celsius of product temperature rise, causes product hardened, influences product quality, price and brand prestige, obtains
Mistake is not repaid;Filler dust-extraction unit traditional at the same time often sacrifices part dust removing effects, therefore in order not to excessive increase resistance
Also have portion washes liquid and unwashed dust is entrained away, dust emission value is generally in 50~150mg/Nm after processing3.Closely
Several years, in order to evade the above problem, there is a kind of forced ventilation wet scrubbing dust-extraction unit of more air-introduced machines of configuration in the country,
Solves the problems, such as above-mentioned major part, but the investment of device is double and needs the operation electricity of extra reception 100~3,000,000 yuan every year
Take and wind turbine maintenance cost, aggrandizement apparatus floor space while also increases high column overhead (50~100 meters) bearing load, has
Some potential safety problems.Therefore this area just there is an urgent need to find a kind of high efficiency, low energy consumption, Low investment technology solve height
Tower is granulated ash loss and discharges problem not up to standard.
The content of the invention
It is an object of the invention to problem existing in the prior art and hidden danger are solved, there is provided a kind of high-tower granulation powder
Dirt drainage atomization cleaning dust mist device, the device can efficiently, low consumption, the recycling high-tower granulation dust of economy, make discharge
It is up to standard.
Technical scheme is as follows:A kind of high-tower granulation dust drainage atomization cleaning dust mist device, it is characterized in that
Circulator is collected including efficiently drainage atomization wash mill, high-effective dust-removing mist self-stripping unit and cleaning solution, wherein efficiently drawing
Stream atomization wash mill is provided with the positive drainage atomization washing unit of the first order from bottom to top and the positive drainage atomization in the second level is washed
Unit is washed, each washing unit is connected and composed by the spray tube that more longitudes and latitudes interlock, the multiple positive drainages of every spray tube installation
It is atomized washing nozzle;High-effective dust-removing mist self-stripping unit is located on the positive drainage atomization washing unit in the second level, from bottom to top
It is provided with demister and on-line cleaning nozzle;Cleaning solution collects circulator and is arranged to catch tray, downspout from top to bottom, follows
Annular groove, recycle liquid pump, supplement liquid pump, filter.
As an improvement, the forward direction of the positive drainage atomization washing unit of the positive drainage atomization washing unit of the first order and the second level
Drainage atomization washing nozzle is installed to be positive along touch, cross-flow distribution design.
As an improvement, positive drainage atomization washing nozzle realizes non-resistance atomization washing using unique cavity body structure, it is internal
Constructed using S-shaped blade.
As an improvement, dust removal mist device is designed using new and effective S types buckle type.
As an improvement, the condensation between the positive drainage atomization washing unit in the increase second level and high-effective dust-removing mist self-stripping unit
Settlement space and distance, condensation and Gravity Separation beneficial to cloud.
As an improvement, the on-line cleaning nozzle at the top of high-effective dust-removing mist self-stripping unit uses inverse touch wide-angle solid-cone
Spiral nozzle.
As an improvement, export increase return line in recycle liquid pump.
As an improvement, increase overflow pipe and blow-off pipe.
As an improvement, increase filter in recycle liquid pump import.
The effect of the present invention
Analyzed from apparatus structure:
Forward direction drainage is atomized washing nozzle (11) and is sprayed using positive along touch installation, consistent with the direction of uprising gas,
Air-flow resistance to mass tranfer caused by substantially reducing water-jet and atomization moisture film.The distribution of forward direction drainage atomization washing nozzle (11) is adopted
It is distributed and is designed with cross-flow, is made full use of and absorb space and mass transfer maximal efficiency.Forward direction drainage atomization washing nozzle (11) is using only
Special cavity body structure realizes non-resistance atomization washing, with reference to venturi principle and collides atomizing principles, makes full use of the energy of liquid,
Liquid sucks ambient gas in injection, and the kinetic energy of liquid is passed to gas, so as to improve the flow velocity of gas, and is being spread
Room gas-liquid forms " gas-in-liquid ", is finally sprayed by atomizer, produces smaller droplet, not only improves gas flow rate, but also can reach gas
Liquid mixes, the effect of liquid atomization, while substantially reduces air-flow resistance to mass tranfer;Inside is constructed using S-shaped blade, can be conveyed and be contained
There is the liquid of large-size particle without blocking, which allows the diameter of the solid particle passed through to be solid plain cone nozzle
10 times.
Dust removal mist device (3) uses new and effective S types buckle type demister, former using inertial collision and centrifugal cyclone
Reason, ensures to realize high-effective dust-removing mist efficiency while air-flow rises resistance, significantly larger than traditional baffle plate filler dust-extraction unit,
Its dust removal mist efficiency is atomized wash mill up to more than 90%, with reference to drainage, and dust emission value can be reduced to 30mg/ after processing
Nm3Below.Condensation between the positive drainage atomization washing unit (1-2) in the increase second level and high-effective dust-removing mist self-stripping unit 17 is sunk
Drop space and distance, condensation and Gravity Separation beneficial to cloud, the easy fouling and clogging of solution dust removal mist device and segregational load are asked
Topic.The on-line cleaning nozzle (4) at the top of high-effective dust-removing mist self-stripping unit 17 uses inverse touch wide-angle solid-cone spiral nozzle,
The nozzle has higher rate of release, can effectively clean new and effective S types buckle type demister (3).
From technological flow analysis:
Increase return line (12) is exported in recycle liquid pump (8), to prevent nozzle blocking from causing loine pressure excessive or follow
Annular groove liquid level is too low, causes pump to dally.Increase overflow pipe (13) and blow-off pipe (14), by overflow pipe (13) and blow-off pipe (14) and
The outer comb (15) of rich solution simultaneously leads to granulation tower bottom all the way, can so prevent from circulating tank liquid flow to too much between granulation and
Rich solution can be drained into bottom of towe processing, save cost of investment and space.Increase filter (10) in pump inlet, so as to prevent
Impurity enters nozzle, blocks nozzle.
From Performance Analysis:
From Economic and Efficiency Analysis:
By taking 19 meters of diameter, highly 85 meters of urea prilling tower as an example, gas flow 560000mg/Nm3, original granulation tower top
Carbamide dust concentration discharge amount presses 300mg/Nm3Meter, is granulated tower top drainage atomization cleaning dust mist device carbamide dust concentration row
It is high-volume 30mg/Nm3。
By taking 19 meters of diameter, highly 85 meters of urea prilling tower as an example, gas flow 560000mg/Nm3, it is granulated tower top and passes
System cleaning dust device carbamide dust concentration discharge amount presses 100mg/Nm3(average value) is counted, and is granulated tower top drainage atomization washing and is removed
Cloud device carbamide dust concentration discharge amount is 30mg/Nm3。
Drainage atomization cleaning dust mist device reduces 70mg/ compared with conventional washing dust-extraction unit carbamide dust concentration discharge amount
Nm3, i.e., drainage is atomized cleaning dust mist device can recycle 52.7 ten thousand yuan/year (70mg/ more every year compared with conventional washing dust-extraction unit
Nm3×56×104×24×330×10-9× 1700 yuan=52.7 ten thousand yuan/year)
Brief description of the drawings
Fig. 1 is the structure and flow diagram of the present invention.
Fig. 2 is the cross-sectional view of the present invention.
Fig. 3 is the cross-sectional view of high-effective dust-removing mist self-stripping unit 17.
Fig. 4 is the top view of efficient drainage atomization wash mill 16.
Drawing reference numeral:The positive drainage atomization washing unit 1-1 of the first order, the positive drainage atomization washing unit 1-2 in the second level,
Spray tube 2, efficient S types buckle type demister 3, on-line cleaning nozzle 4, collecting tank 5, downspout 6, circulating slot 7, recycle liquid pump
8, supplement liquid pump 9, filter 10, forward direction drainage atomization washing nozzle 11, return line 12, overflow pipe 13, blow-off pipe 14, rich solution
Outer comb 15, efficiently drainage atomization wash mill 16, high-effective dust-removing mist self-stripping unit 17, cleaning solution collect circulator 18.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail the present invention.
With reference to Fig. 1, the present invention is a kind of high-tower granulation dust drainage atomization cleaning dust mist device, including efficiently drains mist
Change wash mill 16, high-effective dust-removing mist self-stripping unit 17 and cleaning solution and collect circulator 18.
Gas phase flow:Lateral access enters first order drainage atomization and washes from bottom to top between granulation of the dust-containing tail gas through granulation tower
Unit 1-1 is washed, is drained through forward direction and is atomized washing nozzle 11 and sprays, gas twitches mixing, washing and from spray inside nozzle with liquid
Moisture film washing is twitched in head periphery with liquid, and the tail gas containing cloud after slightly washing enters second level drainage atomization washing unit from bottom to top
1-2, drains through forward direction and is atomized washing nozzle 11 and sprays, gas twitches mixing, washing and from nozzle periphery inside nozzle with liquid
Moisture film washing is twitched with liquid, the tail gas cloud of washes clean is coalesced through gravity settling section by the gentle liquid phase condensate of gravity, point
From high-effective dust-removing mist self-stripping unit 17 is entered after big cloud, dust removal mist self-stripping unit 17 uses new and effective S types buckle
Formula demister 3, the purification gas after gas-liquid separation are discharged into air.
Liquid phase flow:Product hydrolysis waste liquid is delivered to by fluid infusion pump and is granulated interior circulating slot 7, and solution passes through in circulating slot
The pressurization of recycle liquid pump 8 after filter 10 enters drainage atomization washing nozzle 11, and washing nozzle cross-flow is atomized with containing through two layers of drainage
The contact of cloud gas enters collecting tank 5 after absorbing, and circulating slot 7 is back to through downspout 6 by collecting tank 5, when circulation fluid concentration reaches
During to certain value (10~20%), discharged into outside circulation fluid into vapo(u)rization system, while product hydrolysis liquid supplements.As high-effective dust-removing mist fills
Fouling is put, an other circulating pump 8 can be opened, is rinsed with the i.e. inverse touch wide-angle solid-cone spiral nozzle of online cleaning sprayer 4
Dust removal mist device.
When system just brings into operation, process water is first added to circulating slot liquid level half, the circulating pump after opening filter, is followed
Ring liquid contacts absorption with gas after drainage atomization washing nozzle atomization, and in absorption process, product dissolving and heat absorbing, absorbs liquid temperature
Degree declines, therefore circulating slot 7 uses low-pressure steam coil pipe constant temperature measures, ensures circulation fluid optimal absorption effect.
Increase return line 12 is exported in recycle liquid pump 8, to prevent nozzle blocks from causing loine pressure excessive or circulating slot
Liquid level is too low, causes pump to dally.Increase overflow pipe 13 and blow-off pipe 14, by overflow pipe 13 and blow-off pipe 14 and comb 15 outside rich solution
And granulation tower bottom is led to all the way, it can so prevent circulation tank liquid from flowing to too much between granulation and rich solution is drained into tower
Bottom is managed, and saves cost of investment and space.Increase filter 10 in pump inlet, so as to prevent impurity from entering nozzle, block up
Fill in nozzle.
The above, is only the preferable implementation of the present invention, not makees limitation in any form to the present invention, in every case
It is the content without departing from technical solution of the present invention, what the technical spirit according to the present invention made above example any simply repaiies
Change, equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (9)
1. high-tower granulation dust drainage atomization cleaning dust mist device, it is characterized in that including efficiently drainage atomization wash mill
(16), high-effective dust-removing mist self-stripping unit (17) and cleaning solution collect circulator (18), wherein efficiently drainage atomization washing dress
Put (16) and be provided with the positive drainage atomization washing list of the positive drainage atomization washing unit (1-1) of the first order and the second level from bottom to top
First (1-2), each washing unit are connected and composed by the spray tube (2) that more longitudes and latitudes interlock, and every spray tube installs multiple forward directions
Drainage atomization washing nozzle (11);High-effective dust-removing mist self-stripping unit (17) is located at the positive drainage atomization washing unit in the second level
On (1-2), demister (3) and on-line cleaning nozzle (4) are provided with from bottom to top;Cleaning solution collects circulator (18) certainly
Catch tray (5), downspout (6), circulating slot (7), recycle liquid pump (8), supplement liquid pump (9), filter (10) are arranged under above.
2. high-tower granulation dust drainage atomization cleaning dust mist device as claimed in claim 1, it is characterized in that, the first order is positive
The positive drainage atomization washing nozzle of the positive drainage atomization washing unit (1-2) of drainage atomization washing unit (1-1) and the second level
(11) installed to be positive along touch, cross-flow distribution.
3. high-tower granulation dust drainage atomization cleaning dust mist device as claimed in claim 1, it is characterized in that, forward direction drainage mist
Change washing nozzle (11) and non-resistance atomization washing is realized using cavity body structure, inside is constructed using S-shaped blade.
4. high-tower granulation dust drainage atomization cleaning dust mist device as claimed in claim 1, it is characterized in that, demister
(3) it is S type buckle types.
5. high-tower granulation dust drainage atomization cleaning dust mist device as claimed in claim 1, it is characterized in that, increase the second level
Condensation settlement space and distance between forward direction drainage atomization washing unit (1-2) and high-effective dust-removing mist self-stripping unit (17).
6. high-tower granulation dust drainage atomization cleaning dust mist device as claimed in claim 1, it is characterized in that, high-effective dust-removing mist
On-line cleaning nozzle (4) at the top of self-stripping unit (17) uses inverse touch wide-angle solid-cone spiral nozzle.
7. high-tower granulation dust drainage atomization cleaning dust mist device as claimed in claim 1, it is characterized in that, in recycle liquid pump
(8) outlet increase return line (12).
8. high-tower granulation dust drainage atomization cleaning dust mist device as claimed in claim 1, it is characterized in that, in recycle liquid pump
(8) outlet increase overflow pipe (13) and blow-off pipe (14), by overflow pipe (13) and blow-off pipe (14) with the outer comb (15) of rich solution simultaneously
Granulation tower bottom is led to all the way.
9. high-tower granulation dust drainage atomization cleaning dust mist device as claimed in claim 1, it is characterized in that, in recycle liquid pump
(8) import increase filter (10).
Priority Applications (1)
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CN201810053584.7A CN107983058A (en) | 2018-01-19 | 2018-01-19 | High-tower granulation dust drainage atomization cleaning dust mist device |
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CN201810053584.7A CN107983058A (en) | 2018-01-19 | 2018-01-19 | High-tower granulation dust drainage atomization cleaning dust mist device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021089246A1 (en) * | 2019-11-04 | 2021-05-14 | Thyssenkrupp Industrial Solutions Ag | Method and plant for producing urea granulate |
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CN2257744Y (en) * | 1996-01-10 | 1997-07-16 | 昆明化肥厂 | Anti-blocking sprayer |
CN200974818Y (en) * | 2006-12-07 | 2007-11-14 | 张军保 | Gas-liquid cocurrent flow type cooling washer for carbamide granulation exhaust gas |
CN101104140A (en) * | 2007-08-03 | 2008-01-16 | 褚雅安 | Tower bubbling stuffing with vortex-flow and defrosting function |
CN101116790A (en) * | 2006-08-01 | 2008-02-06 | 永安智胜化工有限公司 | Method for purifying flour dust for the urea granulation column |
CN205672673U (en) * | 2016-05-16 | 2016-11-09 | 北京香源溪环保科技有限公司 | A kind of roof type S type dedusting demister |
CN207886878U (en) * | 2018-01-19 | 2018-09-21 | 西安同大实业股份有限公司 | High-tower granulation dust drainage atomization cleaning dust mist device |
-
2018
- 2018-01-19 CN CN201810053584.7A patent/CN107983058A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2257744Y (en) * | 1996-01-10 | 1997-07-16 | 昆明化肥厂 | Anti-blocking sprayer |
CN101116790A (en) * | 2006-08-01 | 2008-02-06 | 永安智胜化工有限公司 | Method for purifying flour dust for the urea granulation column |
CN200974818Y (en) * | 2006-12-07 | 2007-11-14 | 张军保 | Gas-liquid cocurrent flow type cooling washer for carbamide granulation exhaust gas |
CN101104140A (en) * | 2007-08-03 | 2008-01-16 | 褚雅安 | Tower bubbling stuffing with vortex-flow and defrosting function |
CN205672673U (en) * | 2016-05-16 | 2016-11-09 | 北京香源溪环保科技有限公司 | A kind of roof type S type dedusting demister |
CN207886878U (en) * | 2018-01-19 | 2018-09-21 | 西安同大实业股份有限公司 | High-tower granulation dust drainage atomization cleaning dust mist device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021089246A1 (en) * | 2019-11-04 | 2021-05-14 | Thyssenkrupp Industrial Solutions Ag | Method and plant for producing urea granulate |
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Application publication date: 20180504 |