CN2491450Y - Urea stripping liquid hydrolytic stripping tower - Google Patents
Urea stripping liquid hydrolytic stripping tower Download PDFInfo
- Publication number
- CN2491450Y CN2491450Y CN01244731U CN01244731U CN2491450Y CN 2491450 Y CN2491450 Y CN 2491450Y CN 01244731 U CN01244731 U CN 01244731U CN 01244731 U CN01244731 U CN 01244731U CN 2491450 Y CN2491450 Y CN 2491450Y
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- tower body
- tower
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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Abstract
The utility mode discloses a hydrolysis naphtha stripper of urea stripping liquid for the reprocessing to the stripping liquid in the course of the production of the urea, comprising an upper tower and a lower tower, wherein the upper tower is communicated with the lower tower by a leak-off pipe. The sealing cover of the upper tower and the sealing base of the lower tower are respectively provided with a steam outlet and a liquid outlet, and column plates are arranged inside the upper tower and the lower tower. The tower walls disposed below the lowest column plates of the upper tower and the lower tower are equipped with steam inlet tubes. Heating devices are arranged inside the positions inside the upper tower and the lower tower which are corresponding to the two steam inlet tubes. The lower wall of the upper tower and the upper wall of the lower tower are respectively arranged with a liquid inlet tube and a steam outlet tube. By the employment of the utility model, the output can be increased, the cost can be reduced and the environment pollution can not be caused.
Description
The utility model relates in a kind of urea production process the treatment unit again to stripping liquid.Specifically, be urea stripping liquid hydrolyzer stripper.
In the urea production process of chemical industry, in the desorption tower liquid effluent urea and ammonia contain two higher.Wherein: urea is about 0.2% (weight), ammonia is about 0.05% (weight).Because these urea and ammonia are emitted in vain, not only can cause waste, also can pollute environment.Again because the urea in the liquid effluent and the content of ammonia are higher, can not Recycling, make production cost higher.
The purpose of this utility model is to provide a kind of urea stripping liquid hydrolyzer stripper.Use this urea stripping liquid hydrolyzer stripper, not only can increase urea output, reduce production costs, also can not pollute environment.
Above-mentioned purpose of the present utility model is realized by following technical solution:
Urea stripping liquid hydrolyzer stripper of the present utility model, its constructional feature are to comprise tower body and following tower body and bearing thereof.The lower end of the upper end of last tower body and following tower body has capping and back cover respectively, and the upper end with following tower body at the bottom of the tower of last tower body is connected mutually.Last escape pipe is arranged in the capping of last tower body, some last column plates with holes are arranged in it.The center of last column plate is installed with upflow tube, outside the upper and lower end of this upflow tube stretches out at the bottom of the uppermost tower of going up column plate and last tower body respectively.Wherein, on the nethermost last tower body tower wall between going up at the bottom of column plate and the tower last steam inlet pipe and fluid inlet are arranged from top to bottom, in the last tower body corresponding to last steam inlet pipe last heating unit is arranged, heating unit is communicated with the steam inlet pipe on this.
Following tower body internal fixing has some horizontal column plates down, in every twice adjacent column plates, one side of a following column plate and another the other side of column plate down all have side cut, are welded with liquid discharging plate in the side cut, this liquid discharging plate is perpendicular with following column plate, the inwall Joint of its two vertical edge and following tower body.Wherein, between the back cover of nethermost down column plate and following tower body following heating unit is arranged, corresponding on the following tower body wall that descends heating unit following steam inlet pipe being arranged, be connected between this time steam inlet pipe and following heating unit.On the back cover of following tower body liquid outlet tube is arranged, this liquid outlet tube communicates with the inner chamber of following tower body.
Another scheme of the present utility model, be under at the bottom of the tower of last tower body, a lip ring to be set, two side cuts that parallel are arranged on the edge of this lip ring, in this two side cut sideboard and baffle plate are arranged respectively, the upper and lower limit of sideboard respectively with the tower of last tower body under a side cut of surface and lip ring weld mutually, baffle plate then is vertical configuration and is welded in its another side cut.The vertical edge of the circular arc limit of said lip ring and sideboard thereof, baffle plate all is welded on down on the inwall of tower body.
Adopt such scheme, have the following advantages:
Because the utility model is made of upper and lower tower body, all has column plate and well heater, well heater wherein to be arranged on the tower bottom of upper and lower tower body again in the upper and lower tower body.The intravital column plate of last tower center is installed with upflow tube again, and the upper and lower end of this upflow tube stretches out outside the uppermost last column plate again respectively and outside at the bottom of the tower of last tower body, make the inner chamber of upper and lower tower body communicate.After the urea stripping liquid entered the liquid-inlet pipe of tower body, through after the upper heater heating, wherein a part of urea and ammonia became steam, and were sent to next procedure and handle.When the stripping liquid liquid level that enters tower body surpasses the upper end height of upflow tube, can flow into down in the tower body by this upflow tube.Enter down the intravital liquid of tower through after heating unit heats down, urea wherein and ammonia can become steam, and this part steam is admitted to next procedure by following steam outlet pipe again and handles.Like this,, be reduced to below the 20PPM, make that this liquid effluent can Recycling from the intravital urea of liquid of tower body discharge down and the content of ammonia through after the bi-level treatment of upper and lower tower.Not only increased output, saved water, reduced production cost, also can not pollute environment.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Accompanying drawing is a urea stripping liquid hydrolyzer stripper cross-sectional schematic of the present utility model.
As shown in drawings, urea stripping liquid hydrolyzer stripper of the present utility model comprises tower body 13 and following tower body 4 and bearing 1 thereof.The lower end of the upper end of last tower body 13 and following tower body 4 is welded with capping 18 and back cover 2 respectively, at the bottom of the tower of last tower body 13 and the upper end soldering and sealing of following tower body 4 together.Capping 18 centers of last tower body 13 have steam outlet, and this steam outlet place is welded with upper gas outlet tube 17.The epimere of last tower body 13 is a circle segments, and hypomere is a conical section.Be fixed with five support rings 5 equably on the tower wall in its circle segments, all fix column plate 14 on each support ring 5 by fastening piece 15.Be evenly equipped with aperture on the last column plate 14.On each at the bottom of the tower of the center of column plate 14 and last tower body 13 center all be drilled with through hole, be installed with upflow tube 19 in the through hole, the upper end of this upflow tube is stretched out uppermost one and is gone up on the column plate 14, under its lower end is stretched out at the bottom of the tower of tower body 13, so that the inner chamber of upper and lower tower body 13 and 4 is communicated with by means of upflow tube 19.In the conical section of last tower body 13 be nethermost one and upward under the column plate 14 heating unit 12 be installed, heating unit is the plate-like radiating pipe on this.Be processed with through hole on the last tower body 13 conical section tower walls corresponding to last heating unit 12, be welded with steam inlet pipe 11 in the through hole, steam inlet pipe is communicated with last heating unit 12 on this.Be welded with liquid-inlet pipe 10 on the conical section tower wall under the last steam inlet pipe 11, this liquid-inlet pipe is communicated with the inner chamber of last tower body 13.
Following tower body 4 is circular, is fixed with 20 support rings 5 on its inwall equably, all fixes column plates 6 by means of fastening piece 15 on each support ring 5.Wherein, in every two blocks of adjacent following column plates 6, the other side of column plate 6 all has side cut under one side of a following column plate 6 and another piece, and side cut on column plate 6 parallels under each.Each all is welded with liquid discharging plate 21 on cutting edge, and this liquid discharging plate is vertical with following column plate 6, and its two vertical edge is connected mutually with the inwall of following tower body 4.Wherein, be provided with down heating unit 3 between the back cover 2 of nethermost column plate 6 down and following tower body 4, this time heating unit also is the plate-like radiating pipe.Be welded with down steam inlet pipe 22 on following tower body 4 walls corresponding to following heating unit 3, this time steam inlet pipe is communicated with following heating unit 3.Back cover 2 centers of following tower body 4 are welded with liquid outlet tube 23, and this liquid outlet tube communicates with the inner chamber of following tower body 4.Be welded with steam outlet pipe 9 on the upper column wall of following tower body 4, this steam outlet pipe communicates with following tower body 4 inner chambers.
In addition, promptly descend the top of tower body 4 that a lip ring 7 is set under at the bottom of the tower of last tower body 13, this lip ring also is circular, and there are two side cuts that are parallel to each other at its edge, and in two side cuts sideboard 8 and baffle plate 20 is arranged respectively.Sideboard 8 upper and lower limits wherein respectively with the tower of last tower body 13 under a side cut of surface and lip ring 7 weld mutually.Baffle plate 20 be then that vertical configuration is welded in lip ring 7 another cut edge on.The vertical edge of the circular arc limit of said lip ring 7 and sideboard 8 and baffle plate 20 all is welded on down on the inwall of tower body 4.
For ease of installing and maintenance, be on uppermost one on the tower wall between column plate 14 and the capping 18 on the top of last tower body 13, also have manhole 16.
Claims (2)
1. urea stripping liquid hydrolyzer stripper is characterized in that comprising tower body (13) and following tower body (4) and bearing (1) thereof; The lower end of the upper end of last tower body (13) and following tower body (4) has capping (18) and back cover (2) respectively, and the upper end with following tower body (4) at the bottom of the tower of last tower body (13) is connected mutually; In the capping (18) of last tower body (13) last escape pipe (17) is arranged, some last column plates (14) with holes are arranged in it; The center of last column plate (14) is installed with upflow tube (19), outside the upper and lower end of this upflow tube stretches out at the bottom of the uppermost tower of going up column plate (14) and last tower body (13) respectively; Wherein, last tower body (13) Ta Bishang between at the bottom of nethermost upward column plate (14) and its tower has last steam inlet pipe (11) and liquid-inlet pipe (10) from top to bottom, in the last tower body (13) corresponding to last steam inlet pipe (11) last heating unit (12) is arranged, heating unit is communicated with last steam inlet pipe (11) on this;
Following tower body (4) internal fixing has some horizontal column plates (6) down, and in every adjacent twice column plates (6), one side of a following column plate (6) and another the other side of column plate (6) down all have side cut, are welded with liquid discharging plate (21) in the side cut; Said liquid discharging plate (21) is perpendicular with following column plate (6), the inwall Joint of its two vertical edge and following tower body (4); Wherein, between the back cover (2) of nethermost column plate (6) down and following tower body (4) following heating unit (3) is arranged, on following tower body (4) wall corresponding to following heating unit (3) following steam inlet pipe (22) is arranged, be connected between this time steam inlet pipe and following heating unit (3); On the back cover (2) of following tower body (4) liquid outlet tube (23) is arranged, this liquid outlet tube communicates with the inner chamber of following tower body (4).
2. urea stripping liquid hydrolyzer stripper according to claim 1, under it is characterized in that at the bottom of the tower of tower body (13) lip ring (7) is arranged, two side cuts that parallel are arranged on the edge of this lip ring, in this two side cut sideboard (8) and baffle plate (20) are arranged respectively, the upper and lower limit of sideboard (8) respectively with the tower of last tower body (13) under a side cut of surface and lip ring (7) weld mutually, baffle plate (20) then is vertical configuration and is welded in its another side cut; The vertical edge of the circular arc limit of said lip ring (7) and sideboard (8) thereof, baffle plate (20) all is welded on down on the inwall of tower body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01244731U CN2491450Y (en) | 2001-07-06 | 2001-07-06 | Urea stripping liquid hydrolytic stripping tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01244731U CN2491450Y (en) | 2001-07-06 | 2001-07-06 | Urea stripping liquid hydrolytic stripping tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2491450Y true CN2491450Y (en) | 2002-05-15 |
Family
ID=33656107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01244731U Expired - Fee Related CN2491450Y (en) | 2001-07-06 | 2001-07-06 | Urea stripping liquid hydrolytic stripping tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2491450Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538349B (en) * | 2008-03-18 | 2010-12-08 | 大庆华科股份有限公司 | Process and equipment for continuous catalytic polymerization aggregation of C9 petroleum resin |
| CN102844086A (en) * | 2010-02-12 | 2012-12-26 | 乌里阿·卡萨勒有限公司 | Falling-film stripper for carbamate decomposition |
| CN105502545A (en) * | 2015-12-16 | 2016-04-20 | 榆林学院 | Device for treating semi coke waste water |
-
2001
- 2001-07-06 CN CN01244731U patent/CN2491450Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538349B (en) * | 2008-03-18 | 2010-12-08 | 大庆华科股份有限公司 | Process and equipment for continuous catalytic polymerization aggregation of C9 petroleum resin |
| CN102844086A (en) * | 2010-02-12 | 2012-12-26 | 乌里阿·卡萨勒有限公司 | Falling-film stripper for carbamate decomposition |
| CN105502545A (en) * | 2015-12-16 | 2016-04-20 | 榆林学院 | Device for treating semi coke waste water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |