CN106693564A - Urea dust gas absorbing and purifying system - Google Patents
Urea dust gas absorbing and purifying system Download PDFInfo
- Publication number
- CN106693564A CN106693564A CN201710111230.9A CN201710111230A CN106693564A CN 106693564 A CN106693564 A CN 106693564A CN 201710111230 A CN201710111230 A CN 201710111230A CN 106693564 A CN106693564 A CN 106693564A
- Authority
- CN
- China
- Prior art keywords
- pipe
- absorption tower
- communicated
- tower
- cleaning system
- 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
Links
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
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/04—Regenerating the washing fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/10—Means for removing the washing fluid dispersed in the gas or vapours
- B01D2247/107—Means for removing the washing fluid dispersed in the gas or vapours using an unstructured demister, e.g. a wire mesh demister
Abstract
The invention belongs to the technical field of dust exhaust gas purification and recycle, and particularly relates to a urea dust gas absorbing and purifying system, which comprises an absorption tower, wherein a gas inlet pipe is communicated to one side of the lower part of the absorption tower; a plurality of distributors are arranged in the absorption tower; each distributor is communicated with a water purification tank through a water purification pipe; a first delivery pump is arranged in each water purification pipe; an exhaust pipe is communicated to the top of the absorption tower; a fan is arranged in the exhaust pipe; a catheter is communicated to the bottom of the absorption tower, and conveys urine to a urine slot through a second delivery pump; a half-pipe jacket is arranged outside the absorption tower, and is located between the gas inlet pipe and the distributor on the lowest layer. The urea dust gas absorbing and purifying system provided by the invention has the beneficial effects that steam is fed into the half-pipe jacket to heat sprayed purified water in the tower, so that the solubility of urea dust is improved, and an urea dust gas absorptive action is further improved; finally purified gas can be directly discharged to the atmosphere through the exhaust pipe, so that the urea dust gas absorbing and purifying system has a good environmental protection effect, meets the requirement on environmental control, and can guarantee the health of personnel inside and outside factories.
Description
Technical field
The invention belongs to dust waste gas purification utilization technology field, and in particular to a kind of carbamide dust aspiration purification
System.
Background technology
Due to reasons such as chemical reaction, shower nozzle injection, granulation coolings in urea production, more carbamide dust is caused, urinated
Plain dust not only causes yield loss, and also extremely serious to the pollution of environment, and destruction plant area afforests and carries out production strictly in line with rules and regulations, and damages
Evil site personnel's health.Requirement of the country to energy-conserving and environment-protective is more and more high, and relevant departments have worked out the standard for allowing, and are listed in
Among the environmental protection project of necessary improvement, so the treatment to carbamide dust gas in the art is increasingly paid attention to；But adverse current is sprayed
The purification means of pouring often have spray liquid solubility low, carbamide dust aspiration defect not fully.
The content of the invention
The purpose of the present invention is the defect for overcoming prior art to exist, there is provided a kind of that the purified water of the lower pouring in tower can be added
Heat, so as to improve the solubility of carbamide dust, further enhancing the absorption of carbamide dust gas；The gas of final purification can
Air is directly discharged into by blast pipe, environment protecting is good, meets environment protection treating requirement, can ensure the health of personnel inside and outside factory, can
Avoid the carbamide dust aspiration cleaning system of the disasters such as dust explosion.
The technical solution adopted for the present invention to solve the technical problems is：A kind of carbamide dust aspiration cleaning system, its
Including absorption tower, the bottom side on absorption tower is communicated with for the air inlet pipe toward input carbamide dust gas in tower body；In absorption tower
Top be sequentially installed with several distributors along tower height, each distributor is communicated with water purification pot, the pipe of pure water pipe by pure water pipe
The first delivery pump for water purification to be squeezed into each distributor is provided with line；The tower top on absorption tower is communicated with blast pipe, exhaust
Pipe is communicated to outside atmosphere, and blower fan is provided with the pipeline of blast pipe；The bottom of towe on absorption tower is communicated with catheter, and catheter is by the
Urine is delivered to two delivery pumps the urine groove of outside；Half-pipe jacket is disposed with the periphery on absorption tower, half-pipe jacket is located at
Between air inlet pipe and undermost distributor.
Carbamide dust gas of the invention enters absorption tower by air inlet pipe, and the first delivery pump extracts water purification from water purification pot,
And squeeze into each layer distributor, each layer distributor is sprayed successively from top to bottom.Because blower fan continues blast pipe air draft, form negative
Pressure, therefore carbamide dust gas in tower is extracted to tower top from bottom of towe.In this process, the carbamide dust gas of rising and lower pouring
The purified water of atomization carries out countercurrent mass transfer absorption.Due to being provided with Multilayer distributor in tower, therefore multilayer absorption cleaning can be realized.
Due to being provided with half-pipe jacket between air inlet pipe and undermost distributor, steam is passed through in half-pipe jacket, can be to the lower pouring in tower
Purified water heating, so as to improve the solubility of carbamide dust, further enhancing the absorption of carbamide dust gas.If again
Increase the heat exchange area surplus of the half-pipe jacket arranged on tower body height, and outer wall, then can realize fully absorbing urea powder
The purpose of dirt.The gas of final purification of the invention can directly be discharged into air by blast pipe, and environment protecting is good, meets environmental protection and controls
Reason requirement, can ensure the health of personnel inside and outside factory, can avoid the disasters such as dust explosion.
Specifically, in stretching in absorption tower in air inlet pipe, and the interior inner end for stretching section is 45 ° of beveling pipes obliquely, prevents spray
The urea liquid of pouring is in in-tube fouling.
Further, the top in absorption tower is sequentially installed with two distributors along tower height, is provided between two distributors
Wire mesh demister.By wire mesh demister, after the tail gas after washing is removed fine droplet therein, air is entered, prevented
Only entrainment, further enhancing environment protecting.
Further, undermost distributor has a packing layer, and packing layer is located at the top and bottom of half-pipe jacket
Between, it is easy to the cleaning solution and carbamide dust gas of spray to carry out being fully contacted mass transfer in the passage of packing layer, purification absorbs effect
It is really good.
Further, distributor is fountain liquid distribution trough, i.e., multiple atomizers are evenly arranged below distributor,
Atomizing spray effect is good, is easy to mass transfer to absorb.
Further, carbamide dust aspiration cleaning system also includes the first stop valve, the second stop valve and the 3rd cut-off
Valve；Return pipe is communicated between pure water pipe and the pipeline of catheter, the 3rd stop valve is in return pipe；It is first stop valve, first defeated
The connected entrance of pump and return pipe one end is sent to be set in turn in from water purification pot toward in the pure water pipe pipeline in absorption tower direction；Second conveying
Pump, the connected entrance of the return pipe other end and the second stop valve are set in turn in the catheter pipeline from absorption tower toward urine groove direction
In.When water purification pot or urine groove need checking maintenance, the 3rd stop valve is first turned on, then turns off the first stop valve and second
Stop valve, now pure water pipe, absorption tower, catheter and return pipe formation circulation loop, now by the second delivery pump, can be with of short duration
The function that internal cleaning solution is recycled is realized on ground, and water purification pot or urine groove in order to pipeline opposite side carry out checking maintenance, keep away
Therefore disposable absorption operation of washing stops, easy to implement, simple to operate.
Preferably, the first stop valve, the second stop valve and the 3rd stop valve are pneumatic stopping valve, and impulse stroke is small, opens
Close the time short；Friction is small between good airproof performance, sealing surface, lasts a long time.
Preferably, absorption tower is titanium steel composite board container or pure titanium container, antiseptic property is fabulous, service life
It is long.
Alternatively, half-pipe jacket replaces with serpentine coil, then be easy to manufacture to install；Or, half-pipe jacket replaces with U-shaped folder
Set, then heat exchange area is larger, and heat utilization rate is high.
A kind of beneficial effect of carbamide dust aspiration cleaning system of the invention is：
1. due to being provided with Multilayer distributor in tower, therefore multilayer absorption cleaning can be realized；
2., due to being provided with half-pipe jacket between air inlet pipe and undermost distributor, steam is passed through in half-pipe jacket, can be right
The purified water heating of the lower pouring in tower, so as to improve the solubility of carbamide dust, further enhancing the absorption of carbamide dust gas
Effect；
3. the gas of final purification of the invention can directly be discharged into air by blast pipe, and environment protecting is good, meets environmental protection
Administer and require, the health of personnel inside and outside factory can be ensured, the disasters such as dust explosion can be avoided.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of process flow diagram of carbamide dust aspiration cleaning system of the invention.
Wherein:1. absorption tower；2. air inlet pipe, 201. beveling pipes；3. distributor；4. pure water pipe；5. water purification pot；6. first is defeated
Send pump；7. blast pipe；8. catheter；9. the second delivery pump；10. urine groove；11. blower fans；12. wire mesh demisters；13. fillers
Layer；14. half-pipe jackets；15. first stop valves；16. second stop valves；17. the 3rd stop valves；18. return pipes.In figure, arrow side
To being fluid conveying direction.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant with the present invention.
The specific embodiment of of the invention a kind of carbamide dust aspiration cleaning system as shown in Figure 1, it includes absorbing
Tower 1, the bottom side on absorption tower 1 is communicated with for the air inlet pipe 2 toward input carbamide dust gas in tower body；It is upper in absorption tower 1
Portion is sequentially installed with several distributors 3 along tower height, and each distributor 3 is communicated with water purification pot 5, the pipe of pure water pipe 4 by pure water pipe 4
The first delivery pump 6 for water purification to be squeezed into each distributor 3 is provided with line；The tower top on absorption tower 1 is communicated with blast pipe 7,
Blast pipe 7 is communicated to outside atmosphere, and blower fan 11 is provided with the pipeline of blast pipe 7；The bottom of towe on absorption tower 1 is communicated with catheter 8, urine
Urine is delivered to liquid pipe 8 the urine groove 10 of outside by the second delivery pump 9；Half pipe clamp is disposed with the periphery on absorption tower 1
Set 14, half-pipe jacket 14 is located between air inlet pipe 2 and undermost distributor 3.
The carbamide dust gas of the present embodiment enters absorption tower 1 by air inlet pipe 2, and the first delivery pump 6 is extracted from water purification pot 5
Water purification, and squeeze into each layer distributor 3, each layer distributor 3 is sprayed successively from top to bottom.Because blower fan 11 continues blast pipe 7
Air draft, the carbamide dust gas formed in negative pressure, therefore tower is extracted to tower top from bottom of towe.In this process, the urea powder of rising
Dust and gas carry out countercurrent mass transfer absorption with the purified water of the atomization of lower pouring.Due to being provided with Multilayer distributor 3 in tower, therefore can realize
Multilayer absorption cleaning.Due to being provided with half-pipe jacket 14 between air inlet pipe 2 and undermost distributor 3, it is passed through in half-pipe jacket 14
Steam, can heat to the purified water of the lower pouring in tower, so as to improve the solubility of carbamide dust, further enhancing carbamide dust
The absorption of gas.If increasing the heat exchange area surplus of the half-pipe jacket 14 arranged on tower body height, and outer wall again, then may be used
To realize fully absorbing the purpose of carbamide dust.The gas of the final purification of the present embodiment can be directly discharged into greatly by blast pipe 7
Gas, environment protecting is good, meets environment protection treating requirement, can ensure the health of personnel inside and outside factory, can avoid the disasters such as dust explosion.
Specifically, in stretching in absorption tower 1 in air inlet pipe 2, and the interior inner end for stretching section is 45 ° of beveling pipes 201 obliquely, is prevented
The urea liquid for only spraying is in in-tube fouling.
Further, the top in absorption tower 1 is sequentially installed with two distributors 3 along tower height, is set between two distributors 3
There is wire mesh demister 12.By wire mesh demister 12, after the tail gas after washing is removed fine droplet therein, enter big
Gas, prevents entrainment, further enhancing environment protecting.
Further, undermost distributor 3 has a packing layer 13, and packing layer 13 is located at the upper end of half-pipe jacket 14
Between lower end, be easy to the cleaning solution and carbamide dust gas of spray carries out being fully contacted mass transfer in the passage of packing layer 13, only
Change good absorbing effect.
Further, distributor 3 is fountain liquid distribution trough, i.e., multiple atomization sprays are evenly arranged below distributor 3
Head, atomizing spray effect is good, is easy to mass transfer to absorb.
Further, carbamide dust aspiration cleaning system also includes the first stop valve 15, the second stop valve 16 and the 3rd
Stop valve 17；Return pipe 18 is communicated between the pipeline of pure water pipe 4 and catheter 8, the 3rd stop valve 17 is in return pipe 18；First
The connected entrance of stop valve 15, the first delivery pump 6 and the one end of return pipe 18 is set in turn in from water purification pot 5 toward the net of the direction of absorption tower 1
In the pipeline of water pipe 4；Second delivery pump 9, the connected entrance of the other end of return pipe 18 and the second stop valve 16 are set in turn in from absorption tower 1
Toward the pipeline of catheter 8 in the direction of urine groove 10.When water purification pot 5 or urine groove 10 need checking maintenance, the 3rd section is first turned on
Only valve 17, then turn off the first stop valve 15 and the second stop valve 16, now pure water pipe 4, absorption tower 1, catheter 8 and return pipe
18 form circulation loop, now by the second delivery pump 9, can briefly realize the function that internal cleaning solution is recycled, with
Being easy to the water purification pot 5 or urine groove 10 of pipeline opposite side carries out checking maintenance, it is to avoid therefore washing absorption operation stops, embodiment party
Just, it is simple to operate.
Preferably, the first stop valve 15, the second stop valve 16 and the 3rd stop valve 17 are pneumatic stopping valve, impulse stroke
Small, opening and closing time is short；Friction is small between good airproof performance, sealing surface, lasts a long time.
Preferably, absorption tower 1 is titanium steel composite board container or pure titanium container, antiseptic property is fabulous, service life
It is long.
Alternatively, half-pipe jacket 14 replaces with serpentine coil, then be easy to manufacture to install；Or, half-pipe jacket 14 replaces with U
Type chuck, then heat exchange area is larger, and heat utilization rate is high.
It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By
Obvious change that spirit of the invention is extended out or among changing still in protection scope of the present invention.
Claims (9)
1. a kind of carbamide dust aspiration cleaning system, it is characterised in that：Including absorption tower (1), the bottom of the absorption tower (1)
Side is communicated with for the air inlet pipe (2) toward input carbamide dust gas in tower body；Top in the absorption tower (1) along tower height according to
Secondary to be provided with several distributors (3), each distributor (3) is communicated with water purification pot (5), the pure water pipe (4) by pure water pipe (4)
Pipeline in be provided with the first delivery pump (6) for water purification to be squeezed into each distributor (3)；The tower top of the absorption tower (1)
Blast pipe (7) is communicated with, the blast pipe (7) is communicated to outside atmosphere, blower fan is provided with the pipeline of the blast pipe (7)
(11)；The bottom of towe of the absorption tower (1) is communicated with catheter (8), and the catheter (8) is by the second delivery pump (9) by urine
It is delivered to the urine groove (10) of outside；Half-pipe jacket (14), the half-pipe jacket are disposed with the periphery of the absorption tower (1)
(14) between air inlet pipe (2) and undermost distributor (3).
2. a kind of carbamide dust aspiration cleaning system according to claim 1, it is characterised in that：The air inlet pipe (2)
In inside stretching in absorption tower (1), and the interior inner end for stretching section is 45 ° of beveling pipes (201) obliquely.
3. a kind of carbamide dust aspiration cleaning system according to claim 1 and 2, it is characterised in that：The absorption tower
(1) top in is sequentially installed with two distributors (3) along tower height, and wire mesh demister (12) is provided between two distributors (3).
4. a kind of carbamide dust aspiration cleaning system according to claim 3, it is characterised in that：Undermost distributor
(3) have packing layer (13), described filler layer (13) is between the top and bottom of half-pipe jacket (14).
5. a kind of carbamide dust aspiration cleaning system according to claim 3, it is characterised in that：The distributor (3)
It is fountain liquid distribution trough.
6. a kind of carbamide dust aspiration cleaning system according to claim 3, it is characterised in that：The carbamide dust gas
Absorption cleaning system also includes the first stop valve (15), the second stop valve (16) and the 3rd stop valve (17)；Pure water pipe (4) and urine
Return pipe (18) is communicated between the pipeline of liquid pipe (8), the 3rd stop valve (17) is in return pipe (18)；First cut-off
The connected entrance of valve (15), the first delivery pump (6) and return pipe (18) one end is set in turn in square toward absorption tower (1) from water purification pot (5)
To pure water pipe (4) pipeline in；Second delivery pump (9), the connected entrance and the second stop valve (16) of return pipe (18) other end
It is set in turn in from absorption tower (1) toward in catheter (8) pipeline in urine groove (10) direction.
7. a kind of carbamide dust aspiration cleaning system according to claim 6, it is characterised in that：First stop valve
(15), the second stop valve (16) and the 3rd stop valve (17) are pneumatic stopping valve.
8. a kind of carbamide dust aspiration cleaning system according to claim 1, it is characterised in that：The absorption tower (1)
It is titanium steel composite board container or pure titanium container.
9. a kind of carbamide dust aspiration cleaning system according to claim 1, it is characterised in that：The half-pipe jacket
(14) serpentine coil or U-shaped chuck are replaced with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710111230.9A CN106693564A (en) | 2017-02-28 | 2017-02-28 | Urea dust gas absorbing and purifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710111230.9A CN106693564A (en) | 2017-02-28 | 2017-02-28 | Urea dust gas absorbing and purifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106693564A true CN106693564A (en) | 2017-05-24 |
Family
ID=58917615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710111230.9A Pending CN106693564A (en) | 2017-02-28 | 2017-02-28 | Urea dust gas absorbing and purifying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106693564A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628971A (en) * | 2017-08-21 | 2018-01-26 | 河南心连心化肥有限公司 | A kind of continuity prepares the device and its technique of carbamide peroxide |
| WO2023002142A1 (en) | 2021-07-23 | 2023-01-26 | Grtgaz | Gas/condensates separator having a cleaning nozzle, and corresponding cleaning method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106792A (en) * | 1998-03-30 | 2000-08-22 | L&P Property Management Company | Apparatus and method for cleaning gas |
| CN201058267Y (en) * | 2007-06-29 | 2008-05-14 | 宁波远东化工集团有限公司 | Device for cleaning and reclaiming urea dust |
| CN201524507U (en) * | 2009-10-29 | 2010-07-14 | 山西天大化工工程有限公司 | Urea granulation washing cooler |
| CN202844801U (en) * | 2012-09-27 | 2013-04-03 | 王献 | Urea dust recovery device |
| CN103816753A (en) * | 2014-02-17 | 2014-05-28 | 江苏晋煤恒盛化工股份有限公司 | Urea dust recycling and reutilizing device |
| CN203816467U (en) * | 2014-04-28 | 2014-09-10 | 陈鹏 | Environment-friendly soluble waste gas component purification device specially used for macromolecule enterprise |
| WO2014156985A1 (en) * | 2013-03-26 | 2014-10-02 | バブコック日立株式会社 | Seawater flue-gas desulfurization device and method for operating same |
| CN206519002U (en) * | 2017-02-28 | 2017-09-26 | 宜兴市压力容器厂有限公司 | A kind of carbamide dust aspiration cleaning system |
-
2017
- 2017-02-28 CN CN201710111230.9A patent/CN106693564A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6106792A (en) * | 1998-03-30 | 2000-08-22 | L&P Property Management Company | Apparatus and method for cleaning gas |
| CN201058267Y (en) * | 2007-06-29 | 2008-05-14 | 宁波远东化工集团有限公司 | Device for cleaning and reclaiming urea dust |
| CN201524507U (en) * | 2009-10-29 | 2010-07-14 | 山西天大化工工程有限公司 | Urea granulation washing cooler |
| CN202844801U (en) * | 2012-09-27 | 2013-04-03 | 王献 | Urea dust recovery device |
| WO2014156985A1 (en) * | 2013-03-26 | 2014-10-02 | バブコック日立株式会社 | Seawater flue-gas desulfurization device and method for operating same |
| CN103816753A (en) * | 2014-02-17 | 2014-05-28 | 江苏晋煤恒盛化工股份有限公司 | Urea dust recycling and reutilizing device |
| CN203816467U (en) * | 2014-04-28 | 2014-09-10 | 陈鹏 | Environment-friendly soluble waste gas component purification device specially used for macromolecule enterprise |
| CN206519002U (en) * | 2017-02-28 | 2017-09-26 | 宜兴市压力容器厂有限公司 | A kind of carbamide dust aspiration cleaning system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628971A (en) * | 2017-08-21 | 2018-01-26 | 河南心连心化肥有限公司 | A kind of continuity prepares the device and its technique of carbamide peroxide |
| CN107628971B (en) * | 2017-08-21 | 2023-09-01 | 河南心连心化学工业集团股份有限公司 | Device and process for continuously preparing urea peroxide |
| WO2023002142A1 (en) | 2021-07-23 | 2023-01-26 | Grtgaz | Gas/condensates separator having a cleaning nozzle, and corresponding cleaning method |
| FR3125433A1 (en) * | 2021-07-23 | 2023-01-27 | Grtgaz | Gas/condensate separator with cleaning nozzle, and corresponding cleaning method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |