CN1559903A - Carbonators with sieve-plate and hat shape mixture structure for preparing alkali by combined alkali process - Google Patents
Carbonators with sieve-plate and hat shape mixture structure for preparing alkali by combined alkali process Download PDFInfo
- Publication number
- CN1559903A CN1559903A CNA2004100218633A CN200410021863A CN1559903A CN 1559903 A CN1559903 A CN 1559903A CN A2004100218633 A CNA2004100218633 A CN A2004100218633A CN 200410021863 A CN200410021863 A CN 200410021863A CN 1559903 A CN1559903 A CN 1559903A
- Authority
- CN
- China
- Prior art keywords
- plate
- sieve
- tower
- column plate
- hat
- 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.)
- Granted
Links
Classifications
-
- 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
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Carbon And Carbon Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention belongs to an integrated soda producing carbonizing tower belonging to a chemical device, including a main tower body including a case, and a separation segment, an absorption segment with a sieve plate type tower plate and a generation segment with a bamboo hat type tower plate arranged in the case in turn, a cooling segment, a base and a sieve plate type tower plate arranged between the tower body and the cooling segment to prevent the back-mixing of mother liquid. It adopts the sieve plate type tower plate in the absorption and the tower plate of preventing the back-mixing of mother liquid, and adds a bamboo hat type tower plate on the top of the separation segment, therefore it has the characters: advanced structure of tower body, simplicity, lightness, high CO2 absorptivity, and lower CO2 content in tail gas than that of background technique by 50-70; can effectively prevent the mother liquid back-mixing and has good crystallizing effect; the alkali content in the output alkali liquor is increased by 3-5%, the productivity of the tower body is increased by 10-20%.
Description
Technical field
The invention belongs to a kind of chemical industry plant-scale equipment, particularly a kind of connection alkaline process that adopts is produced the carbonating column (carbonating tower) that soda ash is used.
Background technology
At present, connection alkaline process production soda ash generally adopts Sol dimension bamboo rain-hat carbonating tower as its carbonation apparatus.The cat head of this carbonating tower main tower is a segregation section, all adopts bamboo rain-hat formula column plate at middle part absorber portion and crystallization generation section, and the main tower bottom is for being equipped with the cooling section and the base of water-cooled tube in each cooling tank, and whole tower body is the reducing tower.Can be used for joining alkaline process production soda ash though this type of tower tower has, have bamboo rain-hat complex structure, heaviness; The CO of carbodiimide solution and its adverse current
2(reaction) gas duration of contact is short, contact area is little, and is insufficient to the absorption of carbonic acid gas; Axial backmixing seriously and further influences the assimilation effect of carbonic acid gas in the tower; Carbon dioxide content is up to 10～25% in the tail gas that cat head is discharged, and loss is big; The high-temperature zone, middle part is owing to the axial backmixing quenching produces a large amount of nucleus, both reduced the height of high-temperature zone, influenced the increase of grain size number again, if guarantee grain size number and improve the middle part temperature, to make in the reaction again and move, strengthen the content of carbonic acid gas in the tail gas.In addition,, adopt a large amount of bamboo rain-hat column plates, reduced the effecting reaction volume in the tower chamber again, influence the carbonization output of column because there is dead gas area in the bamboo rain-hat bottom.Thereby the above-mentioned background technology exists tower body inner structure complexity, heaviness, carbodiimide solution to CO
2Absorption insufficient, crystalline quality is poor, granularity is little, CO in the tail gas
2Content height, unstripped gas consumption are big, defective such as productivity is low.
Summary of the invention
The objective of the invention is on basis of background technology, improve a kind of integrated soda production of design, simplify housing structure to reach, improve carbodiimide solution CO with sieve plate, bamboo rain-hat mixed structure carbonating tower
2Specific absorption and crystalline quality, effectively reduce CO in the tail gas
2Concentration and consumption thereof, prolong the height of high-temperature zone, increase the effecting reaction volume of tower body inner chamber and improve purpose such as its productivity.
Solution of the present invention is that all the bamboo rain-hat formula column plates with the carbonating tower absorber portion improve the sieve plate that is designed to the carry potential overflow pipe, to solve dead gas area problem that former bamboo rain-hat column plate exists, increase its effecting reaction volume and to simplify tower plate structure, to reduce its weight; Good, the effective big gas-to-liquid contact surface-area of two-phase foamed on the sieve plate, thus its assimilated efficiency improved, effectively suppress axial backmixing, make on the reaction zone simultaneously and move, further promote CO
2Absorption; The sieve-board type column plate makes that mother liquor absorbs that the path increases, mix radially, give that volume particle size is homogeneously crystallized that good formation condition is provided on the sieve plate.Generate between section and the cooling section in crystallization simultaneously and set up annular sieve plate, generate section to crystallization, guarantee that crystallization generates section sufficiently high effective area is arranged, stop a large amount of thin brilliant formation with the mother liquor back-mixing that prevents to be cooled.In addition, in order to prevent to form dead gas area under the bamboo rain-hat, annular is offered one group of pore on the column plate under the bamboo rain-hat, impels reaction gas and mother liquor convection current under the bamboo rain-hat, accelerates its speed of response.Therefore, carbonating tower of the present invention comprises the main tower housing that the tower circle is formed by stacking and is located at the absorber portion of the intravital segregation section of shell, band column plate successively and the main tower that crystallization generates section, on the tower circle on main tower top and absorber portion top, also be respectively equipped with exhaust port and mother liquor fluid inlet, in the main tower bottom comprises, establish the cooling tank group of cooling tube and be located at the cooling section of the bamboo rain-hat formula column plate between each cooling tank, and the tower body base of being located at cooling section bottom carrying raw material gas inlet mouth and alkali lye outlet; Key is to generate in the crystallization of main tower bottom and also is provided with a sieve plate that prevents the mother liquor back-mixing between section and the cooling section; And the column plate of absorber portion and crystallization generation section is respectively sieve-board type column plate and the bamboo rain-hat formula column plate that is provided with upflow tube; Sieve-board type column plate and bamboo rain-hat formula column plate be divided into that corresponding absorber portion and crystallization generate in the section in twos between the tower circle and with the detachable one that is tightened to of each tower circle, prevent that the sieve plate of mother liquor back-mixing from then generating section bottom column circle end opening and the cooling section top cooling tank one that is tightened to suitable for reading with crystallization.Above-mentionedly prevent that the sieve plate of mother liquor back-mixing from being the sieve plate of center carry potential overflow pipe, the diameter of each sieve aperture is φ 25～40mm, and the sieve aperture total area is 1.8～3.0% of a plate body area.And be located at the bamboo rain-hat formula column plate that crystallization generates section and cooling section, annular offers one group of pore on the column plate under the bamboo rain-hat.The number of this group pore is 4～12, the diameter in each hole is φ 30～50mm, and the described sieve-board type column plate that is provided with upflow tube at absorber portion, also be provided with an annular swash plate on the upflow tube top, upflow tube internal diameter φ 700～800mm, off-centre is located at a side of sieve plate, the plate body that is symmetrical in the opposite side of this upflow tube has one to be corresponding to 1.3～1.6 times long-pending atresia plate body of upflow tube inner hole section, each column plate shifts to install in the tower body, the center of the upflow tube of promptly going up column plate atresia plate body on the column plate down, following column plate upflow tube be the atresia plate body center on the last column plate then.For particle and the alkali dirt that makes greater particle size enters down one deck column plate smoothly, also be symmetrically arranged with the radially overflow weir that 2～4 diameters are φ 40～60mm submitting at the interface the tube wall of the upflow tube of absorber portion sieve-board type column plate and its sieve body, to form bidirectional flooding.The sieve diameter φ 10～30mm of sieve-board type column plate, the total sectional area of sieve aperture is 0.5～2.0% of a corresponding column plate area.The hole count of each sieve-board type column plate is identical, and lower floor's column plate aperture in its scope, aperture is big and last layer is the smaller aperture due column plate.In order further to reduce the entrainment in the tail gas, between king-tower intravital segregation section top and exhaust port, set up a bamboo rain-hat formula column plate.
Carbonating tower of the present invention has following characteristics:
1, housing structure advanced person, simple, stable, reliable, the weight of sieve-board type column plate only is 20～30% of corresponding bamboo rain-hat formula column plate, the useful volume that participates in reaction in the tower body increases 7～15% than background technology; The tower body gross weight can reduce nearly 10%;
2, CO
2The specific absorption height, go out CO in the tower tail gas
2Content is low; When the middle part warm area exceeds 5 ℃ than background technology, CO in the tail gas
2Content is low by 50～70% than background technology, effectively reduces the consumption of unstripped gas;
3, carbonating tower middle part temperature can improve 4～8 ℃, high-temperature zone lengthening than background technology, help crystallization and generate; Prevent the setting of cooling section mother liquor back-mixing sieve plate, effectively prevented a large amount of thin brilliant formation again; Help crystal grain and increase, improve crystalline quality;
4, the raising of specific absorption, the increase of effecting reaction volumetrical etc. make that alkalinity improves 3～5% in the alkali lye of output, and the throughput of tower body can improve 10～20% than background technology.
Accompanying drawing and description of drawings
Fig. 1, for carbonating tower structural representation of the present invention;
Fig. 2, be that absorber portion sieve-board type column plate A is to view (vertical view)
Among the figure: 1, exhaust port, 2, segregation section, 3, Ta Quan, 4, absorber portion, 4-1, mother liquor fluid inlet, 4-2, sieve-board type column plate, 4-3, upflow tube, 4-4, atresia plate body, 4-5, annular swash plate, 4-6, overflow weir, 5, crystallization generates section, 5-1, bamboo rain-hat formula column plate, 5-2, pore, 6, cooling section, 6-1, cooling tank, 6-2, cooling tube, 6-3, bamboo rain-hat formula column plate, 6-4, pore, 7, base, 7-1, alkali lye outlet, 7-2, unstripped gas inlet mouth, 8, prevent mother liquor back-mixing sieve plate, 8-1, upflow tube.
Embodiment 1
Present embodiment is that the connection alkali production carbonating tower of 170T/ day is an example with throughput: top exhaust port 1, segregation section 2, absorber portion 4 and crystallization generate section 5 tower circle 3 material, structure, size and that a number average is set is identical with background technology; Cooling water tank 6-1, cooling tube 6-2 and base 7 are also all same with background technology.The plate body of the bamboo rain-hat formula column plate 5-1 of crystallization generation section 5, the column plate 6-3 of cooling section 6, the material of bamboo rain-hat, diameter, height etc. are all same with background technology, present embodiment is along on the column plate under the tower cap collar extension, pore 5-2 and 6-4 that it is φ 38mm that radians such as annular are provided with 8 diameters.Present embodiment at absorber portion 4, establish totally 10 of sieve-board type column plate 4-2, this column plate material is steel plate, thick 10mm, and diameter phi 3000mm, sieve diameter bottom are φ 25mm, every last layer aperture reduces 1.0mm, top layer is φ 16mm, and each layer screen number equates and uniform distribution that wherein the total cross-sectional area of bottom sieve aperture is 1.75% of a column plate area, each upflow tube 4-3, internal diameter 750mm, annular swash plate 4-5 external diameter φ 870mm offers the overflow weir 4-6 of 2 φ 50mm on the tube wall; Prevent mother liquor back-mixing sieve plate 8, each screen-aperture φ 30mm, total screening area is 2% of this column plate area, upflow tube 8-1 is located at the plate body center on this column plate, its internal diameter of tube body and annular swash plate external diameter are all same with absorber portion upflow tube 4-3 and annular swash plate 4-5 thereof, but tube wall is not established overflow weir.
Each sieve-board type column plate of present embodiment weighs 750～900kg and only is 23～27.6% of bamboo rain-hat formula column plate heavy (each 3250kg), and whole tower body can be light by 8.5% than background technology; Throughput then can improve about 18%.
Embodiment 2
Present embodiment between the top of segregation section 2 and exhaust port 1, set up a structure, size all with embodiment 1 in the identical column plate of bamboo rain-hat formula column plate 6-3, to reduce the entrainment of tail gas.CO in the present embodiment tail gas
2Content only is about 30% of background technology.
Claims (9)
1, a kind of integrated soda production sieve plate, bamboo rain-hat mixed structure carbonating tower, comprise the main tower housing that the tower circle is formed by stacking and be located at the absorber portion of the intravital segregation section of shell, band column plate successively and the main tower that crystallization generates section, on the tower circle on main tower top and absorber portion top, also be respectively equipped with exhaust emissions and mother liquor fluid inlet, in the main tower bottom comprises, establish the cooling tank group of cooling tube and be located at the cooling section of the bamboo rain-hat formula column plate between each cooling tank, and the tower body base of being located at cooling section bottom carrying raw material gas inlet mouth and alkali lye outlet; It is characterized in that generating and also be provided with a sieve plate that prevents the mother liquor back-mixing between section and the cooling section in the crystallization of main tower bottom; And the column plate of absorber portion and crystallization generation section is respectively sieve-board type column plate and the bamboo rain-hat formula column plate that is provided with upflow tube; Sieve-board type column plate and bamboo rain-hat formula column plate be divided into that corresponding absorber portion and crystallization generate in the section in twos between the tower circle and with the detachable one that is tightened to of each tower circle, prevent that the sieve plate of mother liquor back-mixing from then generating section bottom column circle end opening and the cooling section top cooling tank one that is tightened to suitable for reading with crystallization.
2, by the described integrated soda production of claim 1 sieve plate, bamboo rain-hat mixed structure carbonating tower; It is characterized in that describedly preventing that the sieve plate of mother liquor back-mixing from being the sieve plate of center carry potential overflow pipe, the diameter of each sieve aperture is φ 25～40mm, and the sieve aperture total area is 1.8～3.0% of a plate body area.
3, by the described integrated soda production of claim 1 sieve plate, bamboo rain-hat mixed structure carbonating tower; It is characterized in that the described bamboo rain-hat formula column plate that crystallization generates section and cooling section of being located at, annular offers one group of pore on the column plate under the bamboo rain-hat, to impel reaction gas and the mother liquor convection current under the bamboo rain-hat.
4, by the described integrated soda production of claim 1 sieve plate, bamboo rain-hat mixed structure carbonating tower; It is characterized in that described on the column plate under the bamboo rain-hat annular offer one group of pore, the number of its pore is 4～12, the diameter in each hole is φ 30～50mm.
5, by the described integrated soda production of claim 1 sieve plate, bamboo rain-hat mixed structure carbonating tower; It is characterized in that described absorber portion is provided with the sieve-board type column plate of upflow tube, also be provided with an annular swash plate on the upflow tube top, upflow tube internal diameter φ 700～800mm, off-centre is located at a side of sieve plate, the plate body that is symmetrical in the opposite side of this upflow tube has one for corresponding to 1.3～1.6 times long-pending atresia plate body of upflow tube inner hole section, the upflow tube that each column plate shifted to install, promptly went up column plate in the tower body is over against the center of descending atresia plate body on the column plate, and following column plate upflow tube is the atresia plate body center on the last column plate then.
6, press claim 1 or 5 described integrated soda productions sieve plates, bamboo rain-hat mixed structure carbonating tower; It is characterized in that also being symmetrically arranged with the radially overflow weir that 2～4 diameters are φ 40～60mm, so that form bidirectional flooding submitting at the interface the tube wall of the upflow tube of absorber portion sieve-board type column plate and its sieve body.
7, by the described integrated soda production of claim 1 sieve plate, bamboo rain-hat mixed structure carbonating tower; It is characterized in that the sieve diameter φ 10～30mm of described sieve-board type column plate, the total sectional area of sieve aperture is 0.5～2.0% of a corresponding column plate area.
8, press claim 1 or 7 described integrated soda productions sieve plates, bamboo rain-hat mixed structure carbonating tower; The hole count that it is characterized in that described sieve-board type column plate is identical, and lower floor's column plate aperture in its scope, aperture is big and last layer is the smaller aperture due column plate.
9, by the described integrated soda production of claim 1 sieve plate, bamboo rain-hat mixed structure carbonating tower; It is characterized in that between king-tower intravital segregation section top and exhaust port, having additional a bamboo rain-hat formula column plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100218633A CN100388960C (en) | 2004-02-20 | 2004-02-20 | Carbonators with sieve-plate and hat shape mixture structure for preparing alkali by combined alkali process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100218633A CN100388960C (en) | 2004-02-20 | 2004-02-20 | Carbonators with sieve-plate and hat shape mixture structure for preparing alkali by combined alkali process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1559903A true CN1559903A (en) | 2005-01-05 |
| CN100388960C CN100388960C (en) | 2008-05-21 |
Family
ID=34440879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100218633A Expired - Fee Related CN100388960C (en) | 2004-02-20 | 2004-02-20 | Carbonators with sieve-plate and hat shape mixture structure for preparing alkali by combined alkali process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100388960C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309867A (en) * | 2011-03-21 | 2012-01-11 | 天津大学 | Large flow through sieve plate tower and tower plate |
| CN102008832B (en) * | 2009-09-04 | 2012-12-26 | 中国石油化工集团公司 | Device for directly exchanging heat of oil and gas |
| CN113666395A (en) * | 2021-09-01 | 2021-11-19 | 南京延长反应技术研究院有限公司 | Micro-interface strengthening combined alkali-making device and production method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424405B (en) * | 2011-08-23 | 2013-08-07 | 赵祥海 | Large-scale pressure carbonization tower |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2399371Y (en) * | 1999-08-03 | 2000-10-04 | 中国成达化学工程公司 | Variable gas soda making carbonators |
| CN2680339Y (en) * | 2004-02-20 | 2005-02-23 | 自贡鸿鹤化工股份有限公司 | Sieve plate and cap composite structure carbonized tower for producing alkali using combined alkali method |
-
2004
- 2004-02-20 CN CNB2004100218633A patent/CN100388960C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008832B (en) * | 2009-09-04 | 2012-12-26 | 中国石油化工集团公司 | Device for directly exchanging heat of oil and gas |
| CN102309867A (en) * | 2011-03-21 | 2012-01-11 | 天津大学 | Large flow through sieve plate tower and tower plate |
| CN102309867B (en) * | 2011-03-21 | 2014-04-02 | 天津大学 | Large flow through sieve plate tower and tower plate |
| CN113666395A (en) * | 2021-09-01 | 2021-11-19 | 南京延长反应技术研究院有限公司 | Micro-interface strengthening combined alkali-making device and production method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100388960C (en) | 2008-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022021626A1 (en) | Reaction system and method for preparing halogenated benzaldehyde by oxidizing halogenated toluene | |
| CN110732154A (en) | internal circulation reaction crystallizer | |
| WO2021208199A1 (en) | Reaction system and method for ammoximation and tert-butyl alcohol recovery | |
| WO2009111951A1 (en) | A process for producing purified terephthalic acid | |
| CN218222393U (en) | Device for preparing battery-grade lithium carbonate by refining and purifying industrial-grade lithium carbonate | |
| WO2023082818A1 (en) | Micro-interface enhanced ultra-efficient wastewater ozone treatment device and processing method | |
| CN106745100A (en) | The preparation system and preparation method of battery-level lithium carbonate | |
| CN1559903A (en) | Carbonators with sieve-plate and hat shape mixture structure for preparing alkali by combined alkali process | |
| CN2680339Y (en) | Sieve plate and cap composite structure carbonized tower for producing alkali using combined alkali method | |
| CN112774592B (en) | Micro-interface reaction system and method for hydrofining crude terephthalic acid | |
| CN1027750C (en) | Process and apparatus for preparing sodium bicarbonate | |
| CN107778131B (en) | Method for preparing cyclohexanol and cyclohexanone based on multilayer double-loop flow guide cylinder bubble reactor | |
| CN111569788B (en) | External micro-interface oxidation system and method for preparing terephthalic acid from p-xylene | |
| CN206511931U (en) | The preparation system of battery-level lithium carbonate | |
| CN101157606B (en) | Partition type bubbling tower oxidation reactor for producing aromatic acid | |
| CN205253071U (en) | Air -lift type circular current reactor | |
| CN106914030A (en) | A kind of multi-stage circulating formula mechanical stirs ammonium sulphate crystallizer and carrying and operating method | |
| CN215540715U (en) | Built-in instant dehydration micro-interface strengthening DMC preparation system | |
| CN100460051C (en) | Double circumfluence composite type reaction device | |
| CN2868987Y (en) | Carbonizing tower for preparing sodium hydrogen carbonate | |
| WO2023284024A1 (en) | Micro-interface strengthening system for preparing octenal by n-butyraldehyde condensation, and preparation method | |
| CN202246119U (en) | Carbonating tower for sodium bicarbonate preparation | |
| CN112774579B (en) | Intelligent micro-interface reaction system and method for hydrofining of crude terephthalic acid | |
| CN208732631U (en) | For sodium bicarbonate production without cooling section carbonators | |
| CN2661672Y (en) | Ammonia alkali process separately cooling carbonization tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20140220 |