CN209113500U - Cold carbonization Tower System outside five one group of tower formulas - Google Patents
Cold carbonization Tower System outside five one group of tower formulas Download PDFInfo
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- CN209113500U CN209113500U CN201821747020.5U CN201821747020U CN209113500U CN 209113500 U CN209113500 U CN 209113500U CN 201821747020 U CN201821747020 U CN 201821747020U CN 209113500 U CN209113500 U CN 209113500U
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Abstract
The utility model relates to cold carbonization Tower Systems outside a kind of one group of formula of five tower, including five carbonators in parallel, in the process of running, one of carbonators is cleaning tower, remaining four are alkaline tower, the Outer Cooler that there are three the tower body peripheral hardwares of each carbonators and is connected in tower body, endless form of the reaction solution between tower body and Outer Cooler is Natural Circulation, the top connection offgas duct of the carbonators is used to tail gas being expelled to exhaust gas treating device, AII mother liquor, carbon AII liquid passes through the AII mother liquor pipe positioned at carbonators top respectively, carbon AII liquid inlet tube enters inside carbonators, carbon dioxide, nitrogen is entered inside carbonators by the carbon dioxide tracheae and nitrogen tube that are located at carbonators lower part respectively, the lower part of the carbonators connects carbon AII liquid outlet tube, row's alkali liquor pipe is respectively used to carbon AII liquid, the discharge of lye.This system can increase the output of 300 tons of soda ash of daily output, greatly save the Meteorological of company.
Description
Technical field
The utility model relates to outer cold carbonators, and in particular to cold carbonators outside a kind of one group of formula of five tower.
Background technique
In Lian Jian enterprise, using ammonia, Nacl, carbon dioxide, water as raw material, sodium bicarbonate and chlorination are generated in carbonators
Ammonium, sodium bicarbonate is using just generating sodium carbonate, as soda ash after calcining.Basic chemical reaction is as follows:
Main reaction NaCl+NH3+CO2+ H2O=NaHCO3+NH4Cl+Q……(1)
Side reaction NH3+CO2+H2O=NH4HCO3+Q……(2)
Chemically for reaction speed and the angle of chemical reaction equilibrium, by control suitable technic index select it is best
Operating point is to guarantee to react (1) suitable carry out degree.Obviously, the operation Yu control of carbonation process are the key that soda and sociation centers
Factor.Generally, to reach following three purpose:
1. needing certain reaction speed, guarantee yield；
2. there is certain equilibrium conversion, improving mother liquor equivalent reduces energy consumption；
3. generating NaHCO3Particle is big and uniform, guarantees product quality.
Make a general survey of domestic and international soda ash enterprise, as core equipment-carbonators of soda manufacture, be Sol Vita nothing but with it is outer cold
Two kinds of patterns of tower, two kinds of towers can produce satisfactory NaHCO3It crystallizes, in structure, Sol Vita tower internals uses bacterium
Cap, outer cooling tower tower internals use sieve plate；In the type of cooling, Sol Vita uses the type of cooling of tubular heat exchanger built in lower part,
Outer cooling tower uses the type of cooling of external tubular heat exchanger, traditional in soda industry, either outer cooling tower or Sol Vita
Group tower arranged mode is one group of four tower, i.e. three alkaline one cleanings, alkaline operation is transferred to 24 hours after 72 hours and cleans, so
It is reciprocal to carry out.And the production requirement of soda ash amount bigger for every tower group, the organizational systems of traditional one group of four tower are then unable to satisfy.
Utility model content
In order to overcome drawbacks described above, the utility model provides cold carbonators outside a kind of one group of formula of five tower, by N2Amount
Appropriate adjustment, it will be able to guarantee the cleaning effect of cleaning tower, and improve the alkali number out of soda ash.
The utility model is to solve technical solution used by its technical problem:
Cold carbonization Tower System outside a kind of one group of formula of five tower, including five carbonators in parallel, in the process of running, wherein one
A carbonators is cleaning tower, remaining four are alkaline tower, the tower body peripheral hardware of each carbonators there are three or four with connect in tower body
Logical Outer Cooler, endless form of the reaction solution between tower body and Outer Cooler are Natural Circulation, and the top of the carbonators connects
Offgas duct is used to for tail gas being expelled to exhaust gas treating device, and AII mother liquor, carbon AII liquid are female by being located at the AII on carbonators top respectively
Liquid pipe, carbon AII liquid inlet tube enter inside carbonators, and carbon dioxide, nitrogen pass through the titanium dioxide positioned at carbonators lower part respectively
Carbon tracheae and nitrogen tube enter inside carbonators, and lower part connection carbon AII liquid outlet tube, the row's alkali liquor pipe of the carbonators are used respectively
In the discharge of carbon AII liquid, lye.
Preferably, it is additionally provided with lye storage tank, lye enters lye storage tank by arranging alkali liquor pipe, then by being connected to lye storage
The alkali liquor pipe that goes out of slot enters next process.
Preferably, the carbonators includes carbonators main body and the liquid storage tower below carbonators main body, the liquid storage
Mutually separate between tower and carbonators main body.
Preferably, the lower part of the carbonators main body is connected to by carbon AII liquid outlet tube with liquid storage tower, for that will be carbonized
The intracorporal carbon AII liquid of tower master drains into inside liquid storage tower, and the liquid storage tower is by carbon AII liquid drain pipe by carbon AII liquid by centrifugal pump
In mean allocation to other four alkaline towers.
Preferably, the lower part of the carbonators main body passes through piping connection liaison tube.
Preferably, to be divided into the first reaction zone, second reaction zone and third from top to bottom in the carbonators main body anti-
Area is answered, is equipped with several low percent opening sieve plates in each reaction zone.
Preferably, the Outer Cooler is used to cool down the reaction solution in third reaction zone, and the Outer Cooler is cold outside water-cooled
Device.
The beneficial effects of the utility model are:
1) this system uses five towers, one group job, i.e. four alkaline towers, one cleaning tower, after every the operation of tower alkaline 96 hours
It is transferred to 24 hours and cleans, and so on carry out, namely become " five one group of towers " after sealing in a tower by " four one group of towers ", in alkaline
In the unconverted situation of technic index in tower, the soda ash yield of 300 tons of daily output is increased；Otherwise according to traditional group tower configuration
Words, need increase " two one group of towers ", therefore this system reduce one ten million yuan carbonators investment, saved investment at
This, cold one group of five tower of carbonators of technological development and successful application outside 3500 Φ of Φ, 50000 Φ 3000, be it is both domestic and external pioneering,
It is significant to the technological progress for promoting alkaline industry；
2) main component to scab in tower is NaHCO3、NH4HCO3, when cleaning, from the AII mother liquor that tower top enters
NaHCO3、NH4HCO3Be it is much unsaturated, scab in AII mother liquor with will be dissolved during scabbing and come into full contact with,
Using the nitrogen of upstream space division process as purgative gas in the cleaning tower of this system, and the dosage for controlling nitrogen is 2000NM3/h
Left and right, with traditional low concentration of carbon dioxide as purgative gas compared with, dissolution high with cleaning efficiency scabs the advantage of block；
Because being Na into tower AII mother liquor main component+、Cl-、NH4 +、HCO3 -、CO3 2-And a small amount of Ca2+、Mg2+, such as using containing 15-
20%CO2Gas is as purgative gas, it is clear that the main reaction (1) and side reaction as introduced in background technique can occur in cleaning process
(2) chemical reaction, it is unfavorable to scab to elimination as early as possible.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure: 10- carbonators, 11- Outer Cooler, 12-AII mother liquor pipe, 13- carbon AII liquid inlet tube, 14- offgas duct, 15-
Carbon dioxide tracheae, 16- nitrogen tube, 17- carbon AII liquid outlet tube, 18- arrange alkali liquor pipe, 20- liquid storage tower, 21- carbon AII liquid drain
Pipe, 30- lye storage tank, 31- go out alkali liquor pipe, 40- liaison tube.
Specific embodiment
Below in conjunction with the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear, complete
Site preparation description, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, fall within the protection scope of the utility model.
Embodiment: as shown in Figure 1, cold carbonization Tower System outside a kind of five towers, one group of formula, including five carbonators 10 in parallel,
In the process of running, one of carbonators is cleaning tower, remaining four are alkaline tower, and the tower body of each carbonators 10 is externally provided with
Three or four with the Outer Cooler 11 that is connected in tower body, endless form of the reaction solution between tower body and Outer Cooler is follows naturally
The top connection offgas duct 14 of ring, the carbonators 10 is used to for tail gas being expelled to exhaust gas treating device, AII mother liquor, carbon AII liquid point
Not by entering inside carbonators positioned at the AII mother liquor pipe 12 on carbonators top, carbon AII liquid inlet tube 13, carbon dioxide, nitrogen
Entered inside carbonators by the carbon dioxide tracheae 15 and nitrogen tube 16 that are located at carbonators lower part respectively, the carbonators 10
Lower part connection carbon AII liquid outlet tube 17, row's alkali liquor pipe 18 are respectively used to the discharge of carbon AII liquid, lye, further include lye storage tank
30, lye enters lye storage tank 30 by row's alkali liquor pipe 18, then by being connected under the entrance of alkali liquor pipe 31 out of lye storage tank 30
One procedure.It include five carbonators, respectively tower A, tower B, tower C, tower D, tower E, there are three each tower lower part is set in this system
Outer Cooler 11 (tri- Outer Coolers of A1, A2, A3 of tower A connection, tri- Outer Coolers of B1, B2, B3 of tower B connection.), carbonization
Tower can be enclosed on inner wall of tower, internals and be scabbed after alkaline operation for a period of time, and the dischargeable capacity of tower and filling for gas-liquid are thus influenced
Tap touching, it is therefore necessary to alkaline operation can be just transferred to after cleaning, therefore one of carbonators is cleaning tower at work, in addition
Four are alkaline tower, such as when tower A is when carrying out cleaning, then remaining four tower is carrying out alkaline work, each alkaline tower
Operation is transferred to 24 hours after 96 hours and cleans, and and so on carries out.Cold carbonization Tower System passes through to N outside this five towers, one group of formula2Amount
Appropriate adjustment, can guarantee the cleaning effect of cleaning tower, and the technic index of single column has almost no change in alkaline tower, this is
System is not in the case where increasing operation difficulty, it will be able to which the output for increasing by 300 tons of soda ash of daily output has greatly saved company
Meteorological.
Wherein, the carbonators 10 includes carbonators main body and the liquid storage tower 20 below carbonators main body, the storage
Mutually separate between liquid tower 20 and carbonators main body.(the carbonators main body and liquid storage tower are structure as a whole, and carbonators is as cleaning
When tower, the carbon AII liquid of carbonators lower body part is first discharged into liquid storage tower, then is distributed by liquid storage tower to other four alkaline towers
It is interior.) lower part of the carbonators main body is connected to by carbon AII liquid outlet tube 17 with liquid storage tower 20, to be used for carbonators main body
Interior carbon AII liquid drains into inside liquid storage tower 20, and the liquid storage tower 20 is by carbon AII liquid drain pipe 21 by carbon AII liquid by centrifugal pump
In mean allocation to other four alkaline towers.The lower part of the carbonators main body passes through piping connection liaison tube 40.Connection contact
On the pipeline and all row's of the being connected in alkali liquor pipes 18 of carbon AII liquid outlet tube 17 of pipe, to simplify pipeline, and valve is designed on pipeline
Carry out control piper；When cleaning tower terminates cleaning, the intracorporal carbon AII liquid of carbonators master is directly pressed into cleaning tower by liaison tube.
The first reaction zone, second reaction zone and third reaction zone are divided into the carbonators main body from top to bottom,
Each reaction zone is equipped with several low percent opening sieve plates.First reaction zone be absorber portion, in low percent opening sieve plate have
Overflow pipe, in this section of liquid absorption CO2And it is close to NaHCO3Crystallize drop out point；Second reaction zone is to absorb crystallized region, tower body
It is interior to be made of several pieces of low percent opening sieve plates；Third reaction zone is absorption, cooling, crystallized region, is equipped with outside water-cooled on the outside of this section
Cooler, the two is by the way of natural circulation cooling: generating " the pressure difference original of two sides using the density contrast of the outer liquid of Ta Neita
Manage natural circulation cooling " (tower bottom becomes smaller because gas is passed through fluid density, the outer Outer Cooler circulating water of tower), tower bottom contains
NaHCO3The solidliquid mixture of crystallization takes out from carbonators lower part and goes to next process.The Outer Cooler 11 is for cooling down third
Reaction solution in reaction zone, and the Outer Cooler is water-cooled Outer Cooler.
The operating method of the utility model: steps are as follows:
Step 1: using five towers, one group of grouping operation, and when operation, one of carbonators is cleaning tower, remaining four carbon
Change tower is alkaline tower；
Step 2: when cleaning tower cleaning, AII mother liquor is entered in tower from top to down by the AII mother liquor pipe 12 on tower top,
Nitrogen is entered in tower from bottom to up by the nitrogen tube of cleaning tower lower part, and AII mother liquor and nitrogen are sufficiently stirred in tower, with molten
Solve the NaHCO on inner wall of tower, internals and outer cold inside pipe wall3、NH4HCO3Etc. scabbing；
Step 3: AII mother liquor becomes carbon AII liquid during dissolution scabs, and carbon AII liquid drains into liquid storage by pipeline
Inside tower 20, in case being averagely pumped into remaining four alkaline tower subsequently through carbon AII liquid pump, cleaning tower is after cleaning in 24 hours
It is transferred to alkaline operation；
Step 4: when alkaline tower carries out alkaline, carbon AII liquid is by the carbon AII liquid inlet tube 13 on alkaline tower top from upper
Lower to enter in alkaline tower, carbon dioxide is entered in alkaline tower from bottom to top by the carbon dioxide tracheae 15 of alkaline tower lower part, carbon
AII liquid absorbing carbon dioxide generates sodium bicarbonate, and the solidliquid mixture of the crystallization containing sodium bicarbonate is passed through after the cooling of Outer Cooler 11
Row's alkali liquor pipe 18 of alkaline tower lower part enters lye storage tank 30；Wherein the flow of every tower carbon AII liquid is 120M3/h；Outside water-cooled
Cooler is equipped with mother liquor inlet and outlet in circulation water entrance and alkaline tower, and mother liquor, mother liquor after cooling are cooled down by recirculated water
(solidliquid mixture of the crystallization containing sodium bicarbonate) is expelled to lye storage tank；
Step 5: the sodium bicarbonate solidliquid mixture in lye storage tank 30 enters subsequent processing by going out alkali liquor pipe 31,
The tail gas of generation is transferred to cleaning and makees by being expelled to exhaust gas treating device, the continuous alkaline of alkaline tower at the top of alkaline tower after 96 hours
Industry, with this cycle operation.
Wherein, in step 2, the dosage of nitrogen is 2000NM3/ h or so；In step 4, the temperature in alkaline tower is
52-54℃；Temperature when solidliquid mixture is discharged is 38-40 DEG C；Outer Cooler mother liquor imports and exports 2.5 DEG C of the temperature difference or so；Outer Cooler
Recycle 4-6 DEG C of the water entrance temperature difference.
The ingredient that scabs verifying: taking out one group of four tower, scabbing in alkaline tower carries out constituent analysis in one group of five tower respectively, ties
Fruit such as table 1:
Table 1: scab constituent analysis table
Numerical value in table indicates that corresponding ingredient accounts for the weight percent for the total weight that scabs, it can be seen that, using five towers one
The alkaline tower operation later period in group scabs ingredient and one group of four towers has no big variation.
Cleaning effect verifying:
Any one tower group, AII mother liquor all enters from cleaning tower top, and certain liquid level is controlled in tower, with oneself
It is lower and on purgative gas nitrogen counter current contacting, be sufficiently stirred, while dissolving and scabbing in tower, the carbon AII liquid come out from tower bottom is put down again
It is assigned to each alkaline tower；After this system is run one month, at the end of a cleaning tower operation, manhole inspection, tower wall, sieve are opened
It scabs in plate, Outer Cooler tubulation without any residual, thus illustrates that cleaning effect is fine.Therefore this marshalling has reached following reasonability
Principle: when alkaline, the tower operation later period will not be because of scabbing and influence technique economic indicator in tower on a small quantity；It, can be by tower when cleaning
Interior scab cleaning is clean.The tail gas amount that subsequent ton alkali generates increases, but the tail gas washing tower surplus of back process is larger, therefore
It will not cause the exceeded of emission intensity in tail gas.This system since our company comes into operation, has been run very steady from June, 2018
Fixed, cold one group of five tower of carbonators of technological development and successful application outside 3500 Φ of this Φ, 50000 Φ 3000, are head both domestic and external
Wound, it is significant to the technological progress for promoting alkaline industry.
It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the premise utility,
Various modifications and improvements can be made, and these are all within the protection scope of the present invention.Therefore, the utility model patent
The scope of protection shall be subject to the appended claims.
Claims (7)
1. cold carbonization Tower System outside a kind of one group of formula of five tower, it is characterised in that: including five carbonators (10) in parallel, running
In the process, one of carbonators is cleaning tower, remaining four are alkaline tower, and there are three the tower body peripheral hardwares of each carbonators (10)
Or four with the Outer Cooler (11) that be connected in tower body, endless form of the reaction solution between tower body and Outer Cooler is Natural Circulation,
Top connection offgas duct (14) of the carbonators (10) is used to tail gas being expelled to exhaust gas treating device, AII mother liquor, carbon AII liquid
Respectively by entering inside carbonators positioned at the AII mother liquor pipe (12) on carbonators top, carbon AII liquid inlet tube (13), titanium dioxide
Carbon, nitrogen are entered inside carbonators by the carbon dioxide tracheae (15) and nitrogen tube (16) that are located at carbonators lower part respectively, institute
It states lower part connection carbon AII liquid outlet tube (17) of carbonators (10), arrange the row that alkali liquor pipe (18) are respectively used to carbon AII liquid, lye
Out.
2. cold carbonization Tower System outside five towers, one group of formula according to claim 1, it is characterised in that: be additionally provided with lye storage tank
(30), lye enters lye storage tank (30) by row alkali liquor pipe (18), then the alkali liquor pipe out by being connected to lye storage tank (30)
(31) enter next process.
3. cold carbonization Tower System outside five towers, one group of formula according to claim 1, it is characterised in that: carbonators (10) packet
Include carbonators main body and the liquid storage tower (20) below carbonators main body, phase between the liquid storage tower (20) and carbonators main body
Mutually partition.
4. cold carbonization Tower System outside five towers, one group of formula according to claim 3, it is characterised in that: the carbonators main body
Lower part is connected to by carbon AII liquid outlet tube (17) with liquid storage tower (20), for the intracorporal carbon AII liquid of carbonators master to be drained into storage
Liquid tower (20) is internal, the liquid storage tower (20) by carbon AII liquid drain pipe (21) by carbon AII liquid by pump mean allocation to other four
In a alkaline tower.
5. cold carbonization Tower System outside five towers, one group of formula according to claim 3, it is characterised in that: the carbonators main body
Lower part passes through piping connection liaison tube (40).
6. cold carbonization Tower System outside five towers, one group of formula according to claim 3, it is characterised in that: in the carbonators main body
It is divided into the first reaction zone, second reaction zone and third reaction zone from top to bottom, is equipped with several low apertures in each reaction zone
Rate sieve plate.
7. cold carbonization Tower System outside five towers, one group of formula according to claim 6, it is characterised in that: the Outer Cooler (11) is used
Reaction solution in cooling third reaction zone, and the Outer Cooler is water-cooled Outer Cooler.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821747020.5U CN209113500U (en) | 2018-10-26 | 2018-10-26 | Cold carbonization Tower System outside five one group of tower formulas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821747020.5U CN209113500U (en) | 2018-10-26 | 2018-10-26 | Cold carbonization Tower System outside five one group of tower formulas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2018
- 2018-10-26 CN CN201821747020.5U patent/CN209113500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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