CN106693548A - Demisting and dedusting system and technique applied to urea granulation end gas - Google Patents
Demisting and dedusting system and technique applied to urea granulation end gas Download PDFInfo
- Publication number
- CN106693548A CN106693548A CN201710041199.6A CN201710041199A CN106693548A CN 106693548 A CN106693548 A CN 106693548A CN 201710041199 A CN201710041199 A CN 201710041199A CN 106693548 A CN106693548 A CN 106693548A
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- CN
- China
- Prior art keywords
- demisting
- dust
- tail gas
- carbamide granulation
- washing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 239000004202 carbamide Substances 0.000 title claims abstract description 78
- 238000005469 granulation Methods 0.000 title claims abstract description 71
- 230000003179 granulation Effects 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 88
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 74
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 37
- 238000011010 flushing procedure Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000008569 process Effects 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract 32
- 235000013877 carbamide Nutrition 0.000 claims description 70
- 238000005406 washing Methods 0.000 claims description 44
- 238000005453 pelletization Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000013459 approach Methods 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 239000003546 flue gas Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000003517 fume Substances 0.000 abstract 2
- 238000005201 scrubbing Methods 0.000 abstract 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
-
- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a demisting and dedusting system and technique applied to urea granulation end gas. The demisting and dedusting system consists of a demisting and dedusting device, a water scrubbing structure and a flushing structure, wherein an escaping ammonia absorbing structure, a first mill dust intercepting structure and a second mill dust intercepting structure are arranged inside the demisting and dedusting device; the water scrubbing structure is cooperatively connected with the escaping ammonia absorbing structure; the flushing structure is cooperatively connected with the second mill dust intercepting structure. The demisting and dedusting technique comprises the following steps that the urea granulation end gas enters the demisting and dedusting device through a fume inlet in the bottom of the demisting and dedusting device; the demisting and dedusting device first absorbs escaping ammonia in the urea granulation end gas, and then intercepts mill dust in urea granulation; finally, intercepted clean gas is discharged through a fume outlet. The demisting and dedusting system is simple in structure, is quite convenient to mount and use, can be used for effectively solving the problem of the escaping ammonia generated in a urea granulation process, and meanwhile, can be also used for carrying out demisting and dedusting on the urea granulation end gas; the urea granulation end gas is discharged up to a standard.
Description
Technical field
The present invention relates to energy-conserving and environment-protective technical fiel, and in particular to a kind of demisting dedusting system for being applied to carbamide granulation tail gas
System and its technique.
Background technology
At present, China has turned into chemical fertilizer production state and country of consumption the biggest in the world, and wherein urea production has accounted for global product
The 1/3 of amount.The urea product overwhelming majority of agricultural use is processed into the particle with certain particle size.
The reason for method of granulation can be divided into two kinds of granulation tower granulation and granulator granulation, carbamide dust mainly has following five
Point：One is that prilling spry produces dust when urea is produced；Two is melt temperature higher, and urea granulating is rupture；Three is urea
The condensed product of steam and its molten thing of gas accounts for the 50% of dust total amount by the grit of 15-210um, its dust quantity is generated；Four is tower
Interior wind speed profile is uneven, and space is also easy to produce the grit that melt mist is scattered and forms 10~100um especially near shower nozzle.Five are
Urea granules form the grit of 1~100um with bottom of towe scraper frictional impact.
The design of carbamide granulation workshop section is all fairly simple, is primarily present two problems：One is that temperature is high after granulating, easily caking.
Two is carbamide dust from granulation tower top emptying, it is impossible to effective Collection utilization, causes energy waste to pollute surrounding enviroment again.
There is presently no the system or device that can solve the above problems simultaneously.
The content of the invention
The present invention in order to solve the above problems so that provide a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas and
Its technique.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas, the demisting dust pelletizing system is by demisting deduster, water
Structure and flushing mechanism composition are washed, the demisting deduster bottom is provided with gas approach, and top is provided with exhanst gas outlet, the demisting
Escape ammonia absorbing structure, the first dust catching structure and the second dust catching structure, the washing structure are provided with inside deduster
It is connected with escape ammonia absorbing structure, the flushing mechanism is connected with the second dust catching respective outer side edges.
The escape ammonia absorbing structure includes packing section and washing section in a preferred embodiment of the invention, described to fill out
Material section is located at the bottom of demisting deduster, and the washing section is located at packing section top.
The washing structure includes first-level buffer tank, washing pump and washing pump mistake in a preferred embodiment of the invention
Filter, the washing pump is connected by pipeline with first-level buffer tank, and the water inlet pipe of the washing pump strainer is connected with washing pump,
The outlet pipe of the washing pump strainer is connected with washing section.
The first dust catching structure includes a shape tube demister in a preferred embodiment of the invention, described
Shape tube demister is located at escape ammonia absorbing structure top.
The second dust catching structure includes at least two groups plate group demisters in a preferred embodiment of the invention,
These plate group demisters are even away from being arranged on the first dust catching superstructure successively respectively.
Flushing mechanism described in the flushing mechanism includes level 2 buffering tank, rinses in a preferred embodiment of the invention
Pump, flushing pump strainer and flushing water section, the flushing pump are connected by pipeline with level 2 buffering tank, the flushing pump strainer
Water inlet pipe be connected with flushing pump, outlet pipe and the flushing water section for rinsing pump strainer be connected, and the flushing water section is distinguished
It is connected with each group plate group demister.
The spacing of the shape tube demister is 15~50mm in a preferred embodiment of the invention.
The second dust catching structure includes two groups of plate group demisters in a preferred embodiment of the invention, wherein
First group of spacing of plate group demister is 10~50mm, and second group of spacing of plate group demister is 10~35mm.
A kind of demisting dust collecting process for being applied to carbamide granulation tail gas, the demisting dust collecting process is：Carbamide granulation tail gas
Entered into demisting deduster by the gas approach of demisting deduster bottom, demisting deduster is first by carbamide granulation tail gas
Escape ammonia, then intercepted by the dust in carbamide granulation, finally intercept after clean gas by exhanst gas outlet arrange
Go out.
In a preferred embodiment of the invention, the demisting dust collecting process specifically includes following steps：
(1) carbamide granulation tail gas enters demisting deduster bottom by the gas approach of demisting deduster bottom, and urea is made
Carry a small number of escape ammonias secretly in grain tail gas, according to the concentration of escape ammonia, using corresponding liquid-gas ratio, by escape ammonia absorbing structure with
Washing respective outer side edges absorb escape ammonia；
(2) after escape ammonia is absorbed, carbamide granulation tail gas can be by the first dust catching structure, the first dust catching structure
The dust of most of crystal and more than 20um in carbamide granulation tail gas can be intercepted；
(3) and then, carbamide granulation tail gas can make urea by the second dust catching structure, the second dust catching structure
The carrying out of more than 8um dust intercepts in grain tail gas, until carbamide granulation tail gas is up to standard, is then discharged by exhanst gas outlet；
(4) after demisting deduster runs 1~6 hour, flushing mechanism can be rinsed to the second dust catching structure.
The beneficial effects of the invention are as follows：
Simple structure of the present invention, installs and using all very convenient, can effectively solve the problem that what is produced during carbamide granulation
Escape ammonia problem, while again carbamide granulation tail gas qualified discharge can be made to carbamide granulation tail gas demisting dedusting.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is structural representation of the invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to the demisting dust pelletizing system for being applied to carbamide granulation tail gas that Fig. 1, the present invention are provided, it is by demisting deduster
100th, washing structure 200 and flushing mechanism 300 are constituted.
Demisting deduster 100, its bottom is provided with gas approach 110, and top is provided with exhanst gas outlet 120, carbamide granulation tail gas
Can be entered into inside demisting deduster 100 from gas approach 110, the carbamide granulation tail gas after treatment can be from the row of exhanst gas outlet 120
Go out.
Escape ammonia absorbing structure, the first dust catching structure and the second dust catching are provided with inside demisting deduster 100
Structure.
Escape ammonia absorbing structure, it is that, for absorbing the escape ammonia in carbamide granulation tail gas, it is particularly located at demisting dedusting
The bottom of device 100, carbamide granulation tail gas first can be by escape ammonia absorbing structure after entering into demisting deduster 100.
Escape ammonia absorbing structure specifically includes packing section 410 and washing section 420, and packing section 410 is located at demisting deduster 100
Bottom, washing section 420 is located at the top of packing section 410, and packing section 410 is engaged absorbable carbamide granulation tail with washing section 420
Escape ammonia in gas.
Washing section 420 is specifically engaged with washing structure 200, and washing structure 200 supplies water so as to enter by washing section 420
Water-filling is washed.
Washing structure 200 specifically includes first-level buffer tank 210, washing pump 220 and washing pump strainer 230.
First-level buffer tank 210, it can be used to store fresh water.
Washing pump 220, it passes through pipeline and is connected with first-level buffer tank 210, and it can extract the water in first-level buffer tank 210 out
It is transported to washing pump strainer 230.
Washing pump strainer 230, its water inlet pipe is connected with washing pump 220, and its outlet pipe is connected with washing section 420,
It is for water to be filtered, so as to ensure to wash quality.
In addition, can be provided with one on the outlet pipe of washing pump strainer 230 goes out water regulating valve, the application is according to carbamide granulation
The concentration of escape ammonia in tail gas, can adjust liquid-gas ratio, so as to improve absorption by going out the corresponding water yield of water regulating valve regulation
Efficiency and economize on resources.
First dust catching structure, it is for intercepting most of crystal and more than 20um in carbamide granulation tail gas
Dust, it is particularly located at the top of washing section 420.
First dust catching structure is specially a shape tube demister 600, and its spacing is 15~50mm.
In addition, it is the shape tube demister 600 of 15~50mm to use spacing, the most of knot in carbamide granulation tail gas is intercepted
The efficiency of the dust of brilliant thing and more than 20um is highest.
Second dust catching structure, it is the dust for intercepting more than the 8um in carbamide granulation tail gas, and it is particularly located at
First dust catching superstructure.
Second dust catching structure specifically includes at least two groups plate group demisters 510, these plate group demisters 510 respectively according to
Secondary even away from the first dust catching superstructure is arranged on, the application specifically sets two groups of plate group demisters 510.
In addition, in order to further improve intercepting efficiency, the application has been also carried out to the spacing of two groups of plate group demisters 510
One step is limited, wherein the spacing of first group of plate group demister (being located at the first dust catching superstructure) is 10~50mm, second
The spacing of group plate group demister (being located at first group of plate group demister top) is 10~35mm.
Also, the above-mentioned spacing plan of establishment is only used, the dust of more than 8um could completely be intercepted.
Flushing mechanism 300, it is for being rinsed to the second dust catching structure, so as to ensure that the second dust catching
The intercepting efficiency of structure will not be reduced.
Flushing mechanism 300 specifically includes level 2 buffering tank 310, flushing pump 320, rinses pump strainer 330 and flushing water section
340。
Level 2 buffering tank 310, it is for storing fresh water.
Flushing pump 320, it passes through pipeline and is connected with level 2 buffering tank 310, and it can extract the water in level 2 buffering tank 310 out
It is conveyed to flushing pump strainer 330.
Rinse pump strainer 330, its water inlet pipe is connected with flushing pump 320, its outlet pipe respectively with each group plate group demister
510 are connected, and it is filtered for flushing pump 320 to be conveyed into the water for coming, and water then is conveyed into flushing water section 340,
Flushing water section 340 is rinsed to each group plate group demister 510.
In addition, the application just draws by paying creative work and numerous experiments, only escape ammonia is absorbed and is tied
Structure, the first dust catching structure and the second dust catching structure are successively set on demisting deduster according to order from bottom to top
In 100, and the second dust catching structure is used into two groups of plate group demisters 510, and first group of spacing of plate group demister is 10
~50mm, second group of spacing of plate group demister is 10~35mm, could be by the escape ammonia of carbamide granulation tail gas and dust granule
Remove completely so that the carbamide granulation tail gas after treatment meets standard.
Implementation based on such scheme, present invention also provides a kind of demisting dedusting work for being applied to carbamide granulation tail gas
Skill, demisting dust collecting process is：Carbamide granulation tail gas enters into demisting and removes by the gas approach 110 of the bottom of demisting deduster 100
In dirt device 100, demisting deduster 100 first by the escape ammonia in carbamide granulation tail gas, then by the dust in carbamide granulation
Intercepted, the clean gas after finally intercepting are discharged by exhanst gas outlet 120.
In addition, demisting dust collecting process specifically includes following steps：
(1) carbamide granulation tail gas enters the bottom of demisting deduster 100 by the gas approach 110 of the bottom of demisting deduster 100
Portion, carries a small number of escape ammonias secretly, according to the concentration of escape ammonia, using corresponding liquid-gas ratio, by escape ammonia in carbamide granulation tail gas
Absorbing structure coordinates and absorbs escape ammonia with washing structure 200；
(2) after escape ammonia is absorbed, carbamide granulation tail gas can be by the first dust catching structure, the first dust catching structure
The dust of most of crystal and more than 20um in carbamide granulation tail gas can be intercepted；
(3) and then, carbamide granulation tail gas can make urea by the second dust catching structure, the second dust catching structure
The carrying out of more than 8um dust intercepts in grain tail gas, until carbamide granulation tail gas is up to standard, is then discharged by exhanst gas outlet 120；
(4) after demisting deduster runs 1~6 hour, flushing mechanism 300 can be rinsed to the second dust catching structure.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (10)
1. a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas, it is characterised in that the demisting dust pelletizing system is by demisting
Deduster, washing structure and flushing mechanism composition, the demisting deduster bottom are provided with gas approach, and top is provided with flue gas and goes out
Mouthful, escape ammonia absorbing structure, the first dust catching structure and the second dust catching structure, institute are provided with inside the demisting deduster
State washing structure to be connected with escape ammonia absorbing structure, the flushing mechanism is connected with the second dust catching respective outer side edges.
2. a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas according to claim 1, it is characterised in that described
Escape ammonia absorbing structure includes packing section and washing section, and described filler section is located at the bottom of demisting deduster, the washing section
In packing section top.
3. a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas according to claim 2, it is characterised in that described
Washing structure includes first-level buffer tank, washing pump and washing pump strainer, and the washing pump is connected by pipeline with first-level buffer tank
Connect, the water inlet pipe of the washing pump strainer is connected with washing pump, the outlet pipe of the washing pump strainer coordinates with washing section
Connection.
4. a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas according to claim 1, it is characterised in that described
First dust catching structure includes a shape tube demister, and the shape tube demister is located at escape ammonia absorbing structure top.
5. a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas according to claim 1, it is characterised in that described
Second dust catching structure includes at least two groups plate group demisters, and these plate group demisters are even away from being arranged on the first powder successively respectively
Dirt interception structure top.
6. a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas according to claim 5, it is characterised in that described
Flushing mechanism includes level 2 buffering tank, flushing pump, rinses pump strainer and flushing water section, and the flushing pump passes through pipeline and two grades
Surge tank connect, it is described rinse pump strainer water inlet pipe be connected with flushing pump, it is described rinse pump strainer outlet pipe and rush
Wash water section connection, the flushing water section is connected with each group plate group demister respectively.
7. a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas according to claim 4, it is characterised in that described
The spacing of shape tube demister is 15~50mm.
8. a kind of demisting dust pelletizing system for being applied to carbamide granulation tail gas according to claim 5, it is characterised in that described
Second dust catching structure includes two groups of plate group demisters, wherein first group of spacing of plate group demister is 10~50mm, second
The spacing of group plate group demister is 10~35mm.
9. a kind of demisting dust collecting process for being applied to carbamide granulation tail gas, it is characterised in that the demisting dust collecting process is：Urea
Tail gas generated by granulation is entered into demisting deduster by the gas approach of demisting deduster bottom, and demisting deduster first makes urea
Escape ammonia in grain tail gas, is then intercepted by the dust in carbamide granulation, and the clean gas after finally intercepting pass through cigarette
Gas outlet discharge.
10. a kind of demisting dust collecting process for being applied to carbamide granulation tail gas according to claim 9, it is characterised in that institute
State demisting dust collecting process and specifically include following steps：
(1) carbamide granulation tail gas enters demisting deduster bottom, carbamide granulation tail by the gas approach of demisting deduster bottom
A small number of escape ammonias are carried in gas secretly, according to the concentration of escape ammonia, using corresponding liquid-gas ratio, by escape ammonia absorbing structure and washing
Respective outer side edges absorb escape ammonia；
(2) after escape ammonia is absorbed, carbamide granulation tail gas can be by the first dust catching structure, and the first dust catching structure can be by
The dust of most of crystal and more than 20um is intercepted in carbamide granulation tail gas；
(3) and then, carbamide granulation tail gas can be by carbamide granulation tail by the second dust catching structure, the second dust catching structure
The carrying out of more than 8um dust intercepts in gas, until carbamide granulation tail gas is up to standard, is then discharged by exhanst gas outlet；
(4) after demisting deduster runs 1~6 hour, flushing mechanism can be rinsed to the second dust catching structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710041199.6A CN106693548A (en) | 2017-01-20 | 2017-01-20 | Demisting and dedusting system and technique applied to urea granulation end gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710041199.6A CN106693548A (en) | 2017-01-20 | 2017-01-20 | Demisting and dedusting system and technique applied to urea granulation end gas |
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| Publication Number | Publication Date |
|---|---|
| CN106693548A true CN106693548A (en) | 2017-05-24 |
Family
ID=58908746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710041199.6A Pending CN106693548A (en) | 2017-01-20 | 2017-01-20 | Demisting and dedusting system and technique applied to urea granulation end gas |
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| CN (1) | CN106693548A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107081060A (en) * | 2017-05-31 | 2017-08-22 | 上海安赐环保科技股份有限公司 | One kind is applied to demisting dust pelletizing system and its technique after catalytic cracking tail gas desulfurization |
| CN107715676A (en) * | 2017-10-10 | 2018-02-23 | 鲁西化工集团股份有限公司煤化工分公司 | A kind of production technology for reducing urea prilling tower tail gas ammonia content |
| CN107803111A (en) * | 2017-12-07 | 2018-03-16 | 北京兴晟科技有限公司 | A kind of desulfuration absorbing tower mist eliminator flushing water system for recycling |
| CN111076204A (en) * | 2019-12-31 | 2020-04-28 | 长沙如洋环保科技有限公司 | Automatic dust processing system of cloud collection compression |
| CN117547934A (en) * | 2023-12-29 | 2024-02-13 | 西北民族大学 | An ultra-low emission process and device for tail gas of urea granulation tower |
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| CN107081060A (en) * | 2017-05-31 | 2017-08-22 | 上海安赐环保科技股份有限公司 | One kind is applied to demisting dust pelletizing system and its technique after catalytic cracking tail gas desulfurization |
| CN107715676A (en) * | 2017-10-10 | 2018-02-23 | 鲁西化工集团股份有限公司煤化工分公司 | A kind of production technology for reducing urea prilling tower tail gas ammonia content |
| CN107803111A (en) * | 2017-12-07 | 2018-03-16 | 北京兴晟科技有限公司 | A kind of desulfuration absorbing tower mist eliminator flushing water system for recycling |
| CN111076204A (en) * | 2019-12-31 | 2020-04-28 | 长沙如洋环保科技有限公司 | Automatic dust processing system of cloud collection compression |
| CN117547934A (en) * | 2023-12-29 | 2024-02-13 | 西北民族大学 | An ultra-low emission process and device for tail gas of urea granulation tower |
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