CN2620581Y - High efficient natural circular external cooling carbonators - Google Patents
High efficient natural circular external cooling carbonators Download PDFInfo
- Publication number
- CN2620581Y CN2620581Y CN 03234453 CN03234453U CN2620581Y CN 2620581 Y CN2620581 Y CN 2620581Y CN 03234453 CN03234453 CN 03234453 CN 03234453 U CN03234453 U CN 03234453U CN 2620581 Y CN2620581 Y CN 2620581Y
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- tower body
- tower
- sieve plate
- circulation
- overflow weir
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Abstract
An external-cooling carbonation tower with highly efficient natural circulation comprises a tower body, an external-cooler connecting with the tower body, in which sieve plates with low porosity from 0.2 percent to 1.2 percent are arranged from the top down in the tower body. The tower body is either of same diameter or different diameters. If different, the diameter of the middle part of the tower body is larger than that of the upper part and lower part of the tower body. Also, an inlet gas distributor can be arranged at the lower part of the tower body so that the magma at the bottom of the tower can be activated by gas power. Because of the low porosity of the sieve plate, a gas layer can be formed below the sieve plate to prevent liquid from axial back-mixing among the sieve plates so that the absorption efficiency of CO2 is improved. With the improvement of the CO2 absorption efficiency, the absorption section in the upper part of the tower is shortened while the crystal sections in the middle part and the lower part are enlarged with a result of a larger crystal granularity of sodium bicarbonate, less CO2 content in tail gas, higher CO2 utilization percent and higher unit productive efficiency of the volume of the tower.
Description
One, technical field
The utility model relates to the carbonating tower of producing sodium bicarbonate in a kind of chemical industry.
Two, background technology
Application number is that 87103005 Chinese patent discloses a kind of carbonization tower cooled externally by natural circulation, its structure is: the tower body outside has one or more outer coolers and tower body to be connected to form the reaction solution circulation loop, reaction solution tower body and outside adopt natural circulation between the cooler; One or more inner circulating tubes are housed in the tower body, can also install one or more sieve plate in the tower body, one or more bubble-caps, one or more bamboo rain-hats.This kind carbonating tower is with respect to the pump circulation carbonating tower, facility investment and power consumption have been saved, helping the sodium bicarbonate crystalline grows up, the assimilated efficiency of carbonic acid gas improves a lot, but have the following disadvantages: 1, the content of carbonic acid gas is still higher in the tail gas, and the grain size number of sodium bicarbonate is still less than normal; 2, the cycle of working continuously of tower shorter, the longest is 1 month, if operation is when having fluctuation, heap alkali easily at the bottom of the tower, uninterrupted working time will shorten to more than 10 day.
Three, summary of the invention
The deficiency that the utility model exists at prior art, a kind of carbonating tower of improved production sodium bicarbonate is provided, with the utilization ratio of further raising carbonic acid gas and the production intensity of tower unit volume, increase the grain size number of sodium bicarbonate, prolong working continuously the cycle of tower.
The technical solution of the utility model is: keep application number and be tower body outside in 87103005 the Chinese patent have one or more outer coolers and tower body be connected to form reaction solution circulation loop, reaction solution tower body and outside the structure of employing natural circulation between the cooler, the structure of improvement tower body inside.Percentage of open area is installed from top to bottom is 0.2～1.2% low percentage of open area sieve plate in the tower body, low percentage of open area sieve plate is provided with overflow weir, is separated with spacing between the adjacent sieve plate mutually.Because the percentage of open area of sieve plate is low, can form air cushion layer under the sieve plate, stop liquid axially back mixing between sieve plate, mother liquor is only flowed downward by overflow weir, gas moves upward by sieve aperture, thereby can improve the assimilated efficiency of carbonic acid gas.Because uptake zone, tower body top has been shortened in the raising of carbon dioxide absorption efficient, tower body middle part and lower junction crystalline region have been enlarged, consequently the sodium bicarbonate grain size number increases, tail gas carbon dioxide content reduces, and the carbonic acid gas utilization ratio improves, and the production intensity of tower unit volume improves.
The utility model has also been taked following technical measures:
1, the overflow weir that is installed in the low percentage of open area sieve plate of uptake zone, tower body top is positioned at the sieve plate edge, and the overflow weir of adjacent two sieve plates is symmetrically distributed with respect to the axis of tower body, is equipped with upflow tube in the overflow weir; The overflow weir that is installed in the low percentage of open area sieve plate of absorption of tower body middle part and crystallizing field is positioned at the sieve plate centre, and the overflow weir top is provided with retaining liquid member; The low percentage of open area sieve plate that is installed in the absorption of tower body bottom, crystallization and cooling zone is an annular sieve plate, and overflow weir is positioned at the sieve plate centre.
2, the diameter of uptake zone, tower body top and bottom absorption, crystallization and cooling zone is D
1, the tower body middle part absorbs and the diameter of crystallizing field is D
2, D
2Be D
11.2～1.5 times, form the reducing tower that the middle part enlarges.After the middle part tower body enlarged, crystallization increased in the residence time in this district, can increase grain size number, had reduced degree of supersaturation peak value in the tower simultaneously, made that the speed of scabbing slows down in the tower, helped prolonging working continuously the cycle of tower.
3, the absorption of tower body bottom, crystallization and cooling zone are provided with the air inlet sparger that adopts aerodynamic force activation magma, and this air inlet sparger is connected with inlet pipe.The air inlet sparger is made of ring pipe and airway, is distributed with a plurality of production wells on the ring pipe, and airway is at least two sections, and an end of each section airway is connected with the inner ring surface of ring pipe, and the other end is connected with inlet pipe.These technical measures are piled the alkali problem at the bottom of having solved and having operated the tower that is caused that fluctuates, thereby guarantee and prolonged the working cycle of tower.
4, the tower body middle part absorbs with crystallizing field and is provided with circulation tube.
The utlity model has following beneficial effect:
1, improved the utilization ratio of carbonic acid gas, for example, under the identical condition of tower diameter, application number is 87103005 Chinese patent disclosed " carbonization tower cooled externally by natural circulation " tail gas CO
2Concentration is 4～10%, the carbonating tower tail gas CO that the utility model provides
2Concentration only is 2%.
2, increased the grain size number of sodium bicarbonate, for example, application number is 87103005 Chinese patent disclosed " carbonization tower cooled externally by natural circulation ", when its tower diameter is 2.2 meters and 2.5 meters, sodium bicarbonate crystalline median size is 110 μ m, the carbonating tower that the utility model provides, when its tower diameter was 2.2 meters and 2.8 meters, sodium bicarbonate crystalline median size was 120～140 μ m.
3, improved the production intensity of tower, for example, application number is 87103005 Chinese patent disclosed " carbonization tower cooled externally by natural circulation ", and when its tower diameter was 2.2 meters and 2.5 meters, unit volume output was respectively 0.7 ton per day rice
3With 0.66 ton per day rice
3, the carbonating tower that the utility model provides, when its tower diameter was 2.2 meters and 2.8 meters, unit volume output was respectively 0.86 ton per day rice
3With 0.9 ton per day rice
3
4, prolonged the uninterrupted working time of tower, application number is 87103005 Chinese patent disclosed " carbonization tower cooled externally by natural circulation ", its uninterrupted working time mostly is 1 month most, when operation has fluctuation, shorten to more than 10 day, and the carbonating tower that the utility model provides, uninterrupted working time can stably reach 1～2 month.
Four, description of drawings
Fig. 1 is a kind of structure diagram of the circulation externally cooled formula carbonating tower of efficient natural provided by the utility model;
Fig. 2 is the another kind of structure diagram of the circulation externally cooled formula carbonating tower of efficient natural provided by the utility model;
Fig. 3 is another structure diagram of the circulation externally cooled formula carbonating tower of efficient natural provided by the utility model;
Fig. 4 is the combination synoptic diagram of low percentage of open area sieve plate and upflow tube;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is a kind of structure iron of air inlet sparger;
Fig. 7 is the vertical view of Fig. 6.
Among the figure, 1-tower body, 2-air outlet, the low percentage of open area sieve plate of 3-, 4-fluid inlet, 5-overflow weir, 6-upflow tube, 7-retaining liquid member, the outer cooler of 8-, 9-inlet pipe, 10-alkali outlet pipe, 11-circulation tube, 12-air inlet sparger, 13-ring pipe, 14-airway, 15-production well.
Five, embodiment
Embodiment 1:
The structure of the circulation externally cooled formula carbonating tower of the efficient natural in the present embodiment is assembled by tower body 1, outer cooler 8 and low percentage of open area sieve plate 3 as shown in Figure 1.The tower diameter of tower body 1 is that 2.2 meters, height are 30 meters, and its top has air outlet 2, and its top has fluid inlet 4, and its underpart is provided with inlet pipe 9, and its bottom is provided with alkali outlet pipe 10.The percentage of open area that is installed in the low percentage of open area sieve plate 3 of uptake zone, tower body top is 0.65%, overflow weir 5 is positioned at the sieve plate edge, and the overflow weir of adjacent two sieve plates is symmetrically distributed with respect to the axis of tower body, is equipped with upflow tube 6 in the overflow weir, as Fig. 4, shown in Figure 5, the spacing between the adjacent sieve plate is 0.5 meter; The percentage of open area that is installed in the low percentage of open area sieve plate 3 of absorption of tower body middle part and crystallizing field is 0.6%, and overflow weir 5 is positioned at the sieve plate centre, and the overflow weir top is provided with retaining liquid member 7, and the spacing between the adjacent sieve plate is 2.2 meters; The low percentage of open area sieve plate 3 that is installed in the absorption of tower body bottom, crystallization and cooling zone is annular sieve plate, and percentage of open area is 0.7%, and overflow weir 5 is positioned at the sieve plate centre, and the spacing between the adjacent sieve plate is 2 meters.3 of outer cooler 8 configurations, diameter is 1.2 meters, is connected tower body 1 bottom absorption, crystallization and cooling zone.
Embodiment 2:
The structure of the circulation externally cooled formula carbonating tower of the efficient natural in the present embodiment is assembled by tower body 1, outer cooler 8, low percentage of open area sieve plate 3 and circulation tube 11 as shown in Figure 2.Tower body 1 is the reducing tower, the tower diameter D of upper and lower
1Be 2.2 meters, the tower diameter D at middle part
2Be that 3 meters, height are 30 meters, its top has air outlet 2, and its top has fluid inlet 4, and its underpart is provided with inlet pipe 9, and its bottom is provided with alkali outlet pipe 10.The percentage of open area that is installed in the low percentage of open area sieve plate 3 of uptake zone, tower body top is 0.7%, overflow weir 5 is positioned at the sieve plate edge, and the overflow weir of adjacent two sieve plates is symmetrically distributed with respect to the axis of tower body, is equipped with upflow tube 6 in the overflow weir, as Fig. 4, shown in Figure 5, the spacing between the adjacent sieve plate is 0.5 meter; The percentage of open area that is installed in the low percentage of open area sieve plate 3 of absorption of tower body middle part and crystallizing field is 0.43%, and overflow weir 5 is positioned at the sieve plate centre, and the overflow weir top is provided with retaining liquid member 7, and the spacing between the adjacent sieve plate is 2.2 meters; The low percentage of open area sieve plate 3 that is installed in the absorption of tower body bottom, crystallization and cooling zone is annular sieve plate, and percentage of open area is 0.83%, and overflow weir 5 is positioned at the sieve plate centre, and the spacing between the adjacent sieve plate is 1.95 meters.Circulation tube 11 is arranged on the tower body middle part and absorbs and crystallizing field.3 of outer cooler 8 configurations, diameter is 1.2 meters, is connected tower body 1 bottom absorption, crystallization and cooling zone.
Embodiment 3:
The structure of the circulation externally cooled formula carbonating tower of the efficient natural in the present embodiment is assembled by tower body 1, outer cooler 8, low percentage of open area sieve plate 3, circulation tube 11 and air inlet sparger 12 as shown in Figure 3.Tower body 1 is the reducing tower, the tower diameter D of upper and lower
1Be 2.8 meters, the tower diameter D at middle part
2Be that 3.8 meters, height are 30 meters, its top has air outlet 2, and its top has fluid inlet 4, and its underpart is provided with inlet pipe 9, and its bottom is provided with alkali outlet pipe 10.The percentage of open area that is installed in the low percentage of open area sieve plate 3 of uptake zone, tower body top is 0.51%, overflow weir 5 is positioned at the sieve plate edge, and the overflow weir of adjacent two sieve plates is symmetrically distributed with respect to the axis of tower body, is equipped with upflow tube 6 in the overflow weir, as Fig. 4, shown in Figure 5, the spacing between the adjacent sieve plate is 0.5 meter; The percentage of open area that is installed in the low percentage of open area sieve plate 3 of absorption of tower body middle part and crystallizing field is 0.53%, and overflow weir 5 is positioned at the sieve plate centre, and the overflow weir top is provided with retaining liquid member 7, and the spacing between the adjacent sieve plate is 2.4 meters; The low percentage of open area sieve plate 3 that is installed in the absorption of tower body bottom, crystallization and cooling zone is annular sieve plate, and percentage of open area is 0.74%, and overflow weir 5 is positioned at the sieve plate centre, and the spacing between the adjacent sieve plate is 2 meters.Circulation tube 11 is arranged on the tower body middle part and absorbs and crystallizing field.Air inlet sparger 12 is installed in the bottom of tower body 1 bottom absorption, crystallization and cooling zone, its structure such as Fig. 6, shown in Figure 7, constitute by ring pipe 13 and airway 14, be distributed with a plurality of production wells 15 on the ring pipe, airway is 3 sections, one end of each section airway is connected with the inner ring surface of ring pipe, and the other end is connected with inlet pipe 9.3 of outer cooler 8 configurations, diameter is 1.5 meters, is connected tower body 1 bottom absorption, crystallization and cooling zone.
Claims (9)
1, the circulation externally cooled formula carbonating tower of a kind of efficient natural, the outer cooler (8) that comprises tower body (1), is connected with tower body, reaction solution tower body and outside Recycle design between the cooler be natural circulation, it is characterized in that being equipped with from top to bottom in the tower body percentage of open area and be 0.2～1.2% low percentage of open area sieve plate (3), low percentage of open area sieve plate is provided with overflow weir (5), is separated with spacing between the adjacent sieve plate mutually.
2, the circulation externally cooled formula carbonating tower of efficient natural according to claim 1 is characterized in that:
A, the overflow weir that is installed in the low percentage of open area sieve plate of tower body (1) uptake zone, top are positioned at the sieve plate edge, and the overflow weir of adjacent two sieve plates is symmetrically distributed with respect to the axis of tower body, is equipped with upflow tube (6) in the overflow weir,
B, be installed in the overflow weir (5) that tower body (1) middle part absorbs with the low percentage of open area sieve plate of crystallizing field and be positioned at the sieve plate centre, the overflow weir top is provided with retaining liquid member (7),
C, the low percentage of open area sieve plate that is installed in tower body (1) bottom absorption, crystallization and cooling zone are annular sieve plate, and overflow weir (5) is positioned at the sieve plate centre.
3, the circulation externally cooled formula carbonating tower of efficient natural according to claim 1 and 2 is characterized in that the diameter of tower body (1) uptake zone, top and bottom absorption, crystallization and cooling zone is D
1, tower body (1) middle part absorbs and the diameter of crystallizing field is D
2, D
2Be D
11.2～1.5 times.
4, the circulation externally cooled formula carbonating tower of efficient natural according to claim 1 and 2 is characterized in that tower body (1) bottom absorption, crystallization and cooling zone are provided with air inlet sparger (12), and this air inlet sparger is connected with inlet pipe (9).
5, the circulation externally cooled formula carbonating tower of efficient natural according to claim 3 is characterized in that tower body (1) bottom absorption, crystallization and cooling zone are provided with air inlet sparger (12), and this air inlet sparger is connected with inlet pipe (9).
6, the circulation externally cooled formula carbonating tower of efficient natural according to claim 4, it is characterized in that air inlet sparger (12) is made of ring pipe (13) and airway (14), be distributed with a plurality of production wells (15) on the ring pipe, airway is at least two sections, one end of each section airway is connected with the inner ring surface of ring pipe, and the other end is connected with inlet pipe (9).
7, the circulation externally cooled formula carbonating tower of efficient natural according to claim 5, it is characterized in that air inlet sparger (12) is made of ring pipe (13) and airway (14), be distributed with a plurality of production wells (15) on the ring pipe, airway is at least two sections, one end of each section airway is connected with the inner ring surface of ring pipe, and the other end is connected with inlet pipe (9).
8, the circulation externally cooled formula carbonating tower of efficient natural according to claim 4 is characterized in that tower body (1) middle part absorbs and crystallizing field is provided with circulation tube (11).
9, the circulation externally cooled formula carbonating tower of efficient natural according to claim 5 is characterized in that tower body (1) middle part absorbs and crystallizing field is provided with circulation tube (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234453 CN2620581Y (en) | 2003-05-19 | 2003-05-19 | High efficient natural circular external cooling carbonators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234453 CN2620581Y (en) | 2003-05-19 | 2003-05-19 | High efficient natural circular external cooling carbonators |
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| Publication Number | Publication Date |
|---|---|
| CN2620581Y true CN2620581Y (en) | 2004-06-16 |
Family
ID=34249199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03234453 Expired - Lifetime CN2620581Y (en) | 2003-05-19 | 2003-05-19 | High efficient natural circular external cooling carbonators |
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| Country | Link |
|---|---|
| CN (1) | CN2620581Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166502A (en) * | 2011-03-10 | 2011-08-31 | 中国成达工程有限公司 | Efficient sieve plate carbonating tower with liquid phase as continuous phase |
| CN102424405A (en) * | 2011-08-23 | 2012-04-25 | 赵祥海 | Large-scale pressure carbonization tower |
| CN103303946A (en) * | 2013-06-19 | 2013-09-18 | 石家庄天人化工设备集团有限公司 | Sodium bicarbonate crystal preparation equipment and process for preparing sodium bicarbonate crystals by utilizing same |
| CN108862332A (en) * | 2018-09-04 | 2018-11-23 | 北京烨晶科技有限公司 | Carbonate preparation method of the crystallizer and application thereof with sodium bicarbonate |
| CN109133114A (en) * | 2018-10-26 | 2019-01-04 | 中盐昆山有限公司 | Cold carbonization Tower System and its operating method outside five one group of tower formulas |
| CN110092397A (en) * | 2019-05-20 | 2019-08-06 | 中盐昆山有限公司 | Natural circulation cooling large size carbonators outside multistage |
| CN115041106A (en) * | 2022-06-21 | 2022-09-13 | 湖北新轩宏新材料有限公司 | Reactor for preparing trichlorobenzene and preparation method |
| CN110092397B (en) * | 2019-05-20 | 2024-06-07 | 中盐昆山有限公司 | Multistage external natural circulation cooling large-scale carbonization tower |
-
2003
- 2003-05-19 CN CN 03234453 patent/CN2620581Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102166502A (en) * | 2011-03-10 | 2011-08-31 | 中国成达工程有限公司 | Efficient sieve plate carbonating tower with liquid phase as continuous phase |
| CN102424405A (en) * | 2011-08-23 | 2012-04-25 | 赵祥海 | Large-scale pressure carbonization tower |
| CN102424405B (en) * | 2011-08-23 | 2013-08-07 | 赵祥海 | Large-scale pressure carbonization tower |
| CN103303946A (en) * | 2013-06-19 | 2013-09-18 | 石家庄天人化工设备集团有限公司 | Sodium bicarbonate crystal preparation equipment and process for preparing sodium bicarbonate crystals by utilizing same |
| CN103303946B (en) * | 2013-06-19 | 2015-02-04 | 石家庄天人化工设备集团有限公司 | Sodium bicarbonate crystal preparation equipment and process for preparing sodium bicarbonate crystals by utilizing same |
| CN108862332A (en) * | 2018-09-04 | 2018-11-23 | 北京烨晶科技有限公司 | Carbonate preparation method of the crystallizer and application thereof with sodium bicarbonate |
| CN108862332B (en) * | 2018-09-04 | 2023-08-22 | 北京烨晶科技有限公司 | Carbonation crystallization device and use thereof and preparation method of sodium bicarbonate |
| CN109133114A (en) * | 2018-10-26 | 2019-01-04 | 中盐昆山有限公司 | Cold carbonization Tower System and its operating method outside five one group of tower formulas |
| CN110092397A (en) * | 2019-05-20 | 2019-08-06 | 中盐昆山有限公司 | Natural circulation cooling large size carbonators outside multistage |
| CN110092397B (en) * | 2019-05-20 | 2024-06-07 | 中盐昆山有限公司 | Multistage external natural circulation cooling large-scale carbonization tower |
| CN115041106A (en) * | 2022-06-21 | 2022-09-13 | 湖北新轩宏新材料有限公司 | Reactor for preparing trichlorobenzene and preparation method |
| CN115041106B (en) * | 2022-06-21 | 2023-11-07 | 湖北新轩宏新材料有限公司 | Reactor for preparing trichlorotoluene and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: No. 279 Tianfu Road, Sichuan, Chengdu Province, China: 610041 Patentee after: China Chengda Engineering Co. Ltd. Address before: No. four, 28 South Renmin Road, Sichuan, Chengdu Province, China: 610041 Patentee before: Chengda Engineering Corporation of China |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA CHENGDA ENGINEERING CO., LTD. Free format text: FORMER NAME: CHENGDA ENGINEERING CORPORATION OF CHINA |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130519 Granted publication date: 20040616 |