CN108584990A - Crystal external condensation device circulator and method in procedure of producing soda under joint alkaline process - Google Patents
Crystal external condensation device circulator and method in procedure of producing soda under joint alkaline process Download PDFInfo
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- CN108584990A CN108584990A CN201810590621.8A CN201810590621A CN108584990A CN 108584990 A CN108584990 A CN 108584990A CN 201810590621 A CN201810590621 A CN 201810590621A CN 108584990 A CN108584990 A CN 108584990A
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- Prior art keywords
- outer cooler
- cold
- cold analysis
- cooler
- mother liquor
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000009833 condensation Methods 0.000 title claims abstract description 41
- 230000005494 condensation Effects 0.000 title claims abstract description 41
- 239000013078 crystal Substances 0.000 title claims abstract description 41
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title claims abstract description 26
- 238000004458 analytical method Methods 0.000 claims abstract description 124
- 239000012452 mother liquor Substances 0.000 claims abstract description 64
- 239000002826 coolant Substances 0.000 claims abstract description 38
- 238000005185 salting out Methods 0.000 claims abstract description 31
- 239000010413 mother solution Substances 0.000 claims abstract description 28
- 238000004064 recycling Methods 0.000 claims abstract description 28
- 238000002425 crystallisation Methods 0.000 claims abstract description 25
- 230000008025 crystallization Effects 0.000 claims abstract description 25
- 230000008676 import Effects 0.000 claims abstract description 10
- 238000007616 round robin method Methods 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 16
- 238000005057 refrigeration Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 6
- 230000002411 adverse Effects 0.000 claims description 3
- 239000012267 brine Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 206010039509 Scab Diseases 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/16—Preparation from compounds of sodium or potassium with amines and carbon dioxide
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Crystal external condensation device circulator in a kind of procedure of producing soda under joint alkaline process, the device includes pre- cold analysis crystal external condensation device Recycling Mother Solution device, cold crystallization Outer Cooler Recycling Mother Solution device and salting-out crystallization Outer Cooler Recycling Mother Solution device, pre- cold analysis crystal external condensation device Recycling Mother Solution device includes pre- cool crystallizer, pre- cold analysis Outer Cooler and aggregate groove, the top of pre- cold analysis Outer Cooler is equipped with the feed inlet being connected to pre- cool crystallizer discharge port, the lower part of pre- cold analysis Outer Cooler is equipped with the discharge port being connected to aggregate groove, the lower part of pre- cold analysis Outer Cooler is additionally provided with the import convenient for being flowed into cold mother liquor, the top of pre- cold analysis Outer Cooler is additionally provided with the outlet flowed out for cold mother liquor.The device reasonable design, so that mother liquor is opposite with tradition crystallization Outer Cooler Recycling Mother Solution flow, Recycling Mother Solution flow in Outer Cooler is adjusted to upper entering and lower leaving, at the same with coolant media countercurrent flow, improve Outer Cooler cooling-down effect, extend Outer Cooler duty cycle, ensure steady production.
Description
Technical field
It is crystallized the present invention relates to a kind of crystal external condensation device circulator, in especially a kind of procedure of producing soda under joint alkaline process outer
Regenerator cycle device further relates to the crystal external condensation device cycle of crystal external condensation device circulator in above-mentioned procedure of producing soda under joint alkaline process
Method.
Background technology
Crystal external condensation device circulation process is during traditional soda manufacture：
Cool crystallizer AI mother liquors are extracted out by AI axial-flow pumps, and lower part is into liquefied ammonia cocurrent, which exchanges heat, between pipe drops out of Outer Cooler pipe
Temperature goes out after cooling from cold analysis Outer Cooler top, returns again to aggregate groove, liquefied ammonia is from lower part between Outer Cooler pipe into AI cocurrents in pipe
Heat exchange cooling, the coolant media after heat exchange go out from Outer Cooler top, return again to refrigeration process.
This technique has the following defects：
1, circulating mother liquor crystalline particle or sundries from Outer Cooler bottom in and top out, Outer Cooler due to gravity, influences mother liquor flow velocity,
Outer Cooler is easy the blocking that scabs；
2, Outer Cooler liquefied ammonia heat exchange cooling flow is cocurrent, influences outer cold heat exchange cooling-down effect.
Invention content
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of reasonable design, improve it is outer
Cooler cooling-down effect, extend Outer Cooler duty cycle, ensure the procedure of producing soda under joint alkaline process of steady production in crystal external condensation device
Circulator.
Another technical problem to be solved by this invention is outer there is provided being crystallized in above-mentioned procedure of producing soda under joint alkaline process
The crystal external condensation device round-robin method of regenerator cycle device.
The technical problem to be solved by the present invention is to what is realized by technical solution below.The present invention is a kind of alkali
Crystal external condensation device circulator during method soda manufacture, which includes pre- cold analysis crystal external condensation device Recycling Mother Solution device, cold
Analyse crystal external condensation device Recycling Mother Solution device and salting-out crystallization Outer Cooler Recycling Mother Solution device, pre- cold analysis crystal external condensation device Recycling Mother Solution
Device includes pre- cool crystallizer, pre- cold analysis Outer Cooler and aggregate groove, and the top of pre- cold analysis Outer Cooler is equipped with and pre- cold crystallization
The feed inlet of device discharge port connection, the lower part of pre- cold analysis Outer Cooler are equipped with the discharge port being connected to aggregate groove, pre- cold analysis Outer Cooler
Lower part be additionally provided with convenient for the import that is flowed into cold mother liquor, the top of pre- cold analysis Outer Cooler is additionally provided with to be gone out for what cold mother liquor flowed out
Mouthful；
The cold crystallization Outer Cooler Recycling Mother Solution device includes cool crystallizer, cold analysis Outer Cooler and aggregate groove, cold outside cold analysis
The top of device is equipped with the feed inlet that be connected to cool crystallizer discharge port, and the lower part of cold analysis Outer Cooler with aggregate groove equipped with being connected to
Discharge port, the lower part of cold analysis Outer Cooler are additionally provided with the import flowed into for coolant media, and the top of pre- cold analysis Outer Cooler is additionally provided with
Outlet for coolant media outflow；
The salting-out crystallization Outer Cooler Recycling Mother Solution device includes salting-out crystallizer, saltout Outer Cooler and aggregate groove, is saltoutd outer cold
The top of device is equipped with the feed inlet that be connected to salting-out crystallizer discharge port, and the lower part of Outer Cooler of saltouing with aggregate groove equipped with being connected to
Discharge port, the lower part for Outer Cooler of saltouing are additionally provided with the import flowed into for coolant media, and the top for analysis Outer Cooler of saltouing is additionally provided with
Outlet for coolant media outflow.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Crystal external condensation device circulator in the procedure of producing soda under joint alkaline process, the pre- cold analysis Outer Cooler are equipped with 2, pre- cold analysis knot
2 axial-flow pumps coordinated with pre- cold analysis Outer Cooler are provided on brilliant device.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Crystal external condensation device circulator in the procedure of producing soda under joint alkaline process, the cold analysis Outer Cooler are equipped with 3, cool crystallizer
On be provided with 3 axial-flow pumps coordinated with pre- cold analysis Outer Cooler.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Crystal external condensation device circulator in the procedure of producing soda under joint alkaline process, the salting-out crystallizer and Outer Cooler of saltouing are equipped with
2,2 salting-out crystallizers and 2 Outer Coolers of saltouing are divided into 2 groups, are provided with and saltout on every group of salting-out crystallizer and is outer cold
The axial-flow pump of device cooperation.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
Crystal external condensation device circulator in the procedure of producing soda under joint alkaline process, the coolant media is selected from liquid nitrogen, lithium bromide freezes
One kind in water, brine.
The technical problems to be solved by the invention can also be further realized by technical solution below, a kind of alkali
Crystal external condensation device round-robin method during method soda manufacture, this method use the above-described union soda soda manufacture of claim
Crystal external condensation device circulator is recycled in the process, and the crystal external condensation device round-robin method includes following three kinds of round-robin methods：
（1）The round-robin method of pre- cold analysis crystal external condensation device：
By the liquor abstraction in pre- cool crystallizer, enter pre- cold analysis Outer Cooler from the top of pre- cold analysis Outer Cooler；By saltout Lai
Cold mother liquor mixed with the cold mother liquor extracted out from female bucket, from the lower part of pre- cold analysis Outer Cooler enter pre- cold analysis Outer Cooler, mother liquor with
Cold female heat exchange cooling of cold mother liquor adverse current in pre- cold analysis Outer Cooler, the mother liquor after cooling are flowed out from pre- cold analysis Outer Cooler lower part,
Into aggregate groove；Cold mother liquor after heat exchange comes in and goes out from pre- cold analysis Outer Cooler top, returns to female bucket；
（2）The round-robin method of cold crystallization Outer Cooler：
By the liquor abstraction in cool crystallizer, enter cold analysis Outer Cooler from the top of cold analysis Outer Cooler, coolant media is from cold analysis
The lower part of Outer Cooler enters cold analysis Outer Cooler, and the countercurrent flow in cold analysis Outer Cooler cools down mother liquor with coolant media, after cooling
Mother liquor is flowed out from cold analysis Outer Cooler pars subfrontalis sulci cinguli, into aggregate groove；Coolant media after heat exchange is flowed out from the top of cold analysis Outer Cooler,
Return to refrigeration process；
（3）The round-robin method of salting-out crystallization Outer Cooler：
By the liquor abstraction in salting-out crystallizer, enter Outer Cooler of saltouing from the top for Outer Cooler of saltouing, coolant media is from saltouing
The lower part of Outer Cooler enters Outer Cooler of saltouing, and the countercurrent flow in Outer Cooler of saltouing cools down mother liquor with coolant media, after cooling
Mother liquor is flowed out from outer cold lower part of saltouing, into aggregate groove；Coolant media after heat exchange is flowed out from the top for Outer Cooler of saltouing, and is returned
Return refrigeration process.
Compared with prior art, the mother liquor of the pre- cool crystallizer of the present invention is from pre- cold analysis Outer Cooler upper entering and lower leaving, cold analysis knot
The mother liquor of brilliant device is from cold analysis Outer Cooler upper entering and lower leaving, and the mother liquor of salting-out crystallizer is from Outer Cooler upper entering and lower leaving of saltouing, mother liquor
Crystalline particle or sundries are sunk in pre- cold analysis Outer Cooler, cold analysis Outer Cooler and Outer Cooler of saltouing using gravity, and speed is improved,
Reduce pre- cold analysis Outer Cooler, cold analysis Outer Cooler and Outer Cooler of saltouing to scab blocking；Secondly, mother liquor is in pre- cold analysis Outer Cooler, cold
It realizes in analysis Outer Cooler and Outer Cooler of saltouing and cools down with cold mother liquor or coolant media countercurrent flow, improve outer cold heat exchange cooling effect
Fruit ensures steady production.The device reasonable design so that mother liquor is with tradition crystallization Outer Cooler Recycling Mother Solution flow on the contrary, by outer
Recycling Mother Solution flow in cooler is adjusted to upper entering and lower leaving, at the same with coolant media countercurrent flow, improve Outer Cooler cooling-down effect,
Extend Outer Cooler duty cycle, ensure steady production.
Description of the drawings
Fig. 1 is the cycle schematic diagram of the pre- cold analysis crystal external condensation device of the present invention；
Fig. 2 is the cycle schematic diagram of cold crystallization Outer Cooler of the present invention；
Fig. 3 is the cycle schematic diagram of salting-out crystallization Outer Cooler of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, right below in conjunction with attached drawing of the present invention
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
The every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Referring to Fig.1-3, crystal external condensation device circulator in a kind of procedure of producing soda under joint alkaline process, the device include pre- cold analysis
Crystal external condensation device Recycling Mother Solution device, cold crystallization Outer Cooler Recycling Mother Solution device and salting-out crystallization Outer Cooler Recycling Mother Solution dress
It sets, pre- cold analysis crystal external condensation device Recycling Mother Solution device includes pre- cool crystallizer 1, pre- cold analysis Outer Cooler 4 and aggregate groove 3, precooling
The top of analysis Outer Cooler 4 is equipped with the feed inlet being connected to 1 discharge port of pre- cool crystallizer, and the lower part of pre- cold analysis Outer Cooler 4 is equipped with
The discharge port being connected to aggregate groove 3, the lower part of pre- cold analysis Outer Cooler 4 are additionally provided with the import convenient for being flowed into cold mother liquor, pre- cold analysis
The top of Outer Cooler 4 is additionally provided with the outlet flowed out for cold mother liquor；
The cold crystallization Outer Cooler Recycling Mother Solution device includes cool crystallizer 6, cold analysis Outer Cooler 7 and aggregate groove 3, outside cold analysis
The top of cooler 7 is equipped with the feed inlet being connected to 6 discharge port of cool crystallizer, and the lower part of cold analysis Outer Cooler 7 is equipped with and aggregate groove 3
The discharge port of connection, the lower part of cold analysis Outer Cooler 7 are additionally provided with the import flowed into for coolant media, pre- cold analysis Outer Cooler 4 it is upper
Portion is additionally provided with the outlet flowed out for coolant media；
The salting-out crystallization Outer Cooler Recycling Mother Solution device includes salting-out crystallizer 8, saltout Outer Cooler 9 and aggregate groove 3, is saltoutd outer
The top of cooler 9 is equipped with the feed inlet being connected to 8 discharge port of salting-out crystallizer, and the lower part for Outer Cooler 9 of saltouing is equipped with and aggregate groove 3
The lower part of the discharge port of connection, Outer Cooler 9 of saltouing is additionally provided with the import flowed into for coolant media, the top for analysis Outer Cooler of saltouing
It is additionally provided with the outlet flowed out for coolant media.
The pre- cold analysis Outer Cooler 4 is equipped with 2, and 2 are provided on pre- cool crystallizer 1 and is coordinated with pre- cold analysis Outer Cooler 4
Axial-flow pump 2.1 cool crystallizer 6 can provide mother liquor to 2 cold analysis Outer Coolers 7 simultaneously by axial-flow pump 2；Cold mother liquor is by mixing
It closes pump 5 and delivers into pre- cold analysis Outer Cooler.
The cold analysis Outer Cooler 7 is equipped with 3, and 3 axis coordinated with pre- cold analysis Outer Cooler 4 are provided on cool crystallizer 6
Stream pump 2.1 cool crystallizer 6 can provide mother liquor to 3 cold analysis Outer Coolers 7 simultaneously by axial-flow pump 2.
The salting-out crystallizer 8 and Outer Cooler 9 of saltouing are equipped with 2, and 2 salting-out crystallizers 8 and 2 saltout Outer Cooler 9
2 groups are divided into, the axial-flow pump 2 of the Outer Cooler 9 that is provided with and saltouts on every group of salting-out crystallizer 8 cooperation.
The one kind of the coolant media in liquid nitrogen, lithium bromide chilled water, brine.
Crystal external condensation device round-robin method in a kind of procedure of producing soda under joint alkaline process, this method are described above using claim
Procedure of producing soda under joint alkaline process in crystal external condensation device circulator recycled, the crystal external condensation device round-robin method include with
Lower three kinds of round-robin methods：
（1）The round-robin method of pre- cold analysis crystal external condensation device：
By the liquor abstraction in pre- cool crystallizer, enter pre- cold analysis Outer Cooler from the top of pre- cold analysis Outer Cooler；By saltout Lai
Cold mother liquor mixed with the cold mother liquor extracted out from female bucket, from the lower part of pre- cold analysis Outer Cooler enter pre- cold analysis Outer Cooler, mother liquor with
Cold female heat exchange cooling of cold mother liquor adverse current in pre- cold analysis Outer Cooler, the mother liquor after cooling are flowed out from pre- cold analysis Outer Cooler lower part,
Into aggregate groove；Cold mother liquor after heat exchange comes in and goes out from pre- cold analysis Outer Cooler top, returns to female bucket；
Mother liquor in pre- cool crystallizer is the mother liquor changed from mother；Mother liquor in pre- cool crystallizer is retracted to by axial-flow pump
In pre- cold analysis Outer Cooler；Cold mother liquor is the cold mother liquor of gained after the cold mother liquor after saltouing is mixed with the cold mother liquor in female bucket；
（2）The round-robin method of cold crystallization Outer Cooler：
By the liquor abstraction in cool crystallizer, enter cold analysis Outer Cooler from the top of cold analysis Outer Cooler, coolant media is from cold analysis
The lower part of Outer Cooler enters cold analysis Outer Cooler, and the countercurrent flow in cold analysis Outer Cooler cools down mother liquor with coolant media, after cooling
Mother liquor is flowed out from cold analysis Outer Cooler pars subfrontalis sulci cinguli, into aggregate groove；Coolant media after heat exchange is flowed out from the top of cold analysis Outer Cooler,
Return to refrigeration process；
Mother liquor in cool crystallizer is from pre- cold analysis or female mother liquor changed；Mother liquor in cool crystallizer is taken out by axial-flow pump
Go out into cold analysis Outer Cooler；
（3）The round-robin method of salting-out crystallization Outer Cooler：
By the liquor abstraction in salting-out crystallizer, enter Outer Cooler of saltouing from the top for Outer Cooler of saltouing, coolant media is from saltouing
The lower part of Outer Cooler enters Outer Cooler of saltouing, and the countercurrent flow in Outer Cooler of saltouing cools down mother liquor with coolant media, after cooling
Mother liquor is flowed out from outer cold lower part of saltouing, into aggregate groove；Coolant media after heat exchange is flowed out from the top for Outer Cooler of saltouing, and is returned
Return refrigeration process.
Mother liquor in salting-out crystallizer is retracted to by axial-flow pump saltouts in Outer Cooler.
The invention reside in be adjusted to the Recycling Mother Solution flow of pre- cold analysis Outer Cooler, cold analysis Outer Cooler and Outer Cooler of saltouing
Go out under, with traditional Outer Cooler Recycling Mother Solution flow on the contrary, having following advantage after flow adjustment：
1, circulating mother liquor crystalline particle or sundries from Outer Cooler upper entering and lower leaving, Outer Cooler is sunk using gravity, is improved flow velocity and is subtracted
Few Outer Cooler scabs blocking；
2, mother liquor flow velocity is uniform and stable in Outer Cooler, avoids in Outer Cooler pipe that local velocity is low to cause the blocking that scabs；
3, it is easily achieved and cools down with coolant media countercurrent flow, improve outer cold heat exchange cooling-down effect.
Claims (6)
1. crystal external condensation device circulator in a kind of procedure of producing soda under joint alkaline process, it is characterised in that：The device includes pre- cold analysis
Crystal external condensation device Recycling Mother Solution device, cold crystallization Outer Cooler Recycling Mother Solution device and salting-out crystallization Outer Cooler Recycling Mother Solution dress
It sets, pre- cold analysis crystal external condensation device Recycling Mother Solution device includes pre- cool crystallizer, pre- cold analysis Outer Cooler and aggregate groove, outside pre- cold analysis
The top of cooler is equipped with the feed inlet being connected to pre- cool crystallizer discharge port, and the lower part of pre- cold analysis Outer Cooler is equipped with and aggregate groove
The discharge port of connection, the lower part of pre- cold analysis Outer Cooler are additionally provided with the import convenient for being flowed into cold mother liquor, pre- cold analysis Outer Cooler it is upper
Portion is additionally provided with the outlet flowed out for cold mother liquor；
The cold crystallization Outer Cooler Recycling Mother Solution device includes cool crystallizer, cold analysis Outer Cooler and aggregate groove, cold outside cold analysis
The top of device is equipped with the feed inlet that be connected to cool crystallizer discharge port, and the lower part of cold analysis Outer Cooler with aggregate groove equipped with being connected to
Discharge port, the lower part of cold analysis Outer Cooler are additionally provided with the import flowed into for coolant media, and the top of pre- cold analysis Outer Cooler is additionally provided with
Outlet for coolant media outflow；
The salting-out crystallization Outer Cooler Recycling Mother Solution device includes salting-out crystallizer, saltout Outer Cooler and aggregate groove, is saltoutd outer cold
The top of device is equipped with the feed inlet that be connected to salting-out crystallizer discharge port, and the lower part of Outer Cooler of saltouing with aggregate groove equipped with being connected to
Discharge port, the lower part for Outer Cooler of saltouing are additionally provided with the import flowed into for coolant media, and the top for analysis Outer Cooler of saltouing is additionally provided with
Outlet for coolant media outflow.
2. crystal external condensation device circulator in procedure of producing soda under joint alkaline process according to claim 1, it is characterised in that：Institute
It states pre- cold analysis Outer Cooler and is equipped with 2,2 axial-flow pumps coordinated with pre- cold analysis Outer Cooler are provided on pre- cool crystallizer.
3. crystal external condensation device circulator in procedure of producing soda under joint alkaline process according to claim 1, it is characterised in that：Institute
It states cold analysis Outer Cooler and is equipped with 3,3 axial-flow pumps coordinated with pre- cold analysis Outer Cooler are provided on cool crystallizer.
4. crystal external condensation device circulator in procedure of producing soda under joint alkaline process according to claim 1, it is characterised in that：Institute
It states salting-out crystallizer and Outer Cooler of saltouing is equipped with 2,2 salting-out crystallizers and 2 Outer Coolers of saltouing are divided into 2 groups, often
The axial-flow pump that the Outer Cooler that is provided with and saltouts on group salting-out crystallizer coordinates.
5. crystal external condensation device circulator in procedure of producing soda under joint alkaline process according to claim 1, it is characterised in that：Institute
State the one kind of coolant media in liquid nitrogen, lithium bromide chilled water, brine.
6. crystal external condensation device round-robin method in a kind of procedure of producing soda under joint alkaline process, it is characterised in that：This method is wanted using right
Crystal external condensation device circulator in the procedure of producing soda under joint alkaline process described in 1-5 any one is asked to be recycled, outside the crystallization
Regenerator cycle method includes following three kinds of round-robin methods：
（1）The round-robin method of pre- cold analysis crystal external condensation device：
By the liquor abstraction in pre- cool crystallizer, enter pre- cold analysis Outer Cooler from the top of pre- cold analysis Outer Cooler；By saltout Lai
Cold mother liquor mixed with the cold mother liquor extracted out from female bucket, from the lower part of pre- cold analysis Outer Cooler enter pre- cold analysis Outer Cooler, mother liquor with
Cold female heat exchange cooling of cold mother liquor adverse current in pre- cold analysis Outer Cooler, the mother liquor after cooling are flowed out from pre- cold analysis Outer Cooler lower part,
Into aggregate groove；Cold mother liquor after heat exchange comes in and goes out from pre- cold analysis Outer Cooler top, returns to female bucket；
（2）The round-robin method of cold crystallization Outer Cooler：
By the liquor abstraction in cool crystallizer, enter cold analysis Outer Cooler from the top of cold analysis Outer Cooler, coolant media is from cold analysis
The lower part of Outer Cooler enters cold analysis Outer Cooler, and the countercurrent flow in cold analysis Outer Cooler cools down mother liquor with coolant media, after cooling
Mother liquor is flowed out from cold analysis Outer Cooler pars subfrontalis sulci cinguli, into aggregate groove；Coolant media after heat exchange is flowed out from the top of cold analysis Outer Cooler,
Return to refrigeration process；
（3）The round-robin method of salting-out crystallization Outer Cooler：
By the liquor abstraction in salting-out crystallizer, enter Outer Cooler of saltouing from the top for Outer Cooler of saltouing, coolant media is from saltouing
The lower part of Outer Cooler enters Outer Cooler of saltouing, and the countercurrent flow in Outer Cooler of saltouing cools down mother liquor with coolant media, after cooling
Mother liquor is flowed out from outer cold lower part of saltouing, into aggregate groove；Coolant media after heat exchange is flowed out from the top for Outer Cooler of saltouing, and is returned
Return refrigeration process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590621.8A CN108584990A (en) | 2018-06-09 | 2018-06-09 | Crystal external condensation device circulator and method in procedure of producing soda under joint alkaline process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590621.8A CN108584990A (en) | 2018-06-09 | 2018-06-09 | Crystal external condensation device circulator and method in procedure of producing soda under joint alkaline process |
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| CN108584990A true CN108584990A (en) | 2018-09-28 |
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| CN201810590621.8A Pending CN108584990A (en) | 2018-06-09 | 2018-06-09 | Crystal external condensation device circulator and method in procedure of producing soda under joint alkaline process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853683A (en) * | 2022-06-10 | 2022-08-05 | 江苏中渊化学品有限公司 | Fluorocytosine preparation device and process |
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| CN114853683A (en) * | 2022-06-10 | 2022-08-05 | 江苏中渊化学品有限公司 | Fluorocytosine preparation device and process |
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