CN209322482U - Salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process - Google Patents
Salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process Download PDFInfo
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- CN209322482U CN209322482U CN201821273625.5U CN201821273625U CN209322482U CN 209322482 U CN209322482 U CN 209322482U CN 201821273625 U CN201821273625 U CN 201821273625U CN 209322482 U CN209322482 U CN 209322482U
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- ammonia
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- saltouing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to salting-out crystallization Outer Cooler liquefied ammonia cooling devices in procedure of producing soda under joint alkaline process, the device includes salting-out crystallizer and outer loop cooling device, salting-out crystallizer is equipped with circulating pump of saltouing, and outer loop cooling device includes Outer Cooler and ammonia separator.The mother liquor mouth that circulating pump of saltouing passes through mother liquor piping connection to Outer Cooler, the mother liquor discharge port of Outer Cooler is connected to the central tube of salting-out crystallizer by mother liquor return pipeline, the gas outlet of Outer Cooler is connected to air inlet by gas ammonia transfer pipeline, and the liquefied ammonia discharge port of ammonia separator is connected to the liquefied ammonia feedback outlet of Outer Cooler by liquefied ammonia return pipeline.The liquefied ammonia feed inlet of ammonia separator receives the liquefied ammonia from ammonia storage tank by liquefied ammonia feeding pipe, and the gas ammonia outlet of ammonia separator accesses ice maker entrance by gas ammonia main pipe rail.Carbonization system is improved into tower AII mother liquor composition, improves carbonization conversion ratio, reduces the systematic stock solution equivalent, it is final to improve soda ash and ammonium chloride product yield, reduce system energy consumption.
Description
Technical field
The utility model relates to a kind of union soda soda manufacture device, salt in especially a kind of procedure of producing soda under joint alkaline process
Analyse crystal external condensation device liquefied ammonia cooling device.
Background technique
Sodium carbonate (Na2CO3), molecular weight 105.99.The purity of chemicals mostly in 99.5% or more (mass fraction), is called pure
Alkali, but classification belongs to salt, is not belonging to alkali.In international trade also known as soda or sode ash.It is a kind of important Organic Chemicals,
It is mainly used for the production of plate glass, glassware and ceramic glaze.It is also widely used in life washing, acids neutralizes and food adds
Work etc..
The main method of industrial production soda ash has ammonia-soda process and two kinds of union soda at present.Ammonia-soda process feature is that raw material is inexpensively easy
, ammonia, which can recycle, (to be lost less;Suitable for large-scale production, it is easy to mechanization and automation).But the method raw material availability
Low, especially NaCl is not high with rate.Union soda produces simultaneously using the carbon dioxide of salt, ammonia and ammonia synthesizing industry by-product as raw material
Soda ash and ammonium chloride, i.e. joint produce soda ash and ammonium chloride, referred to as " combined soda method " or " connection alkali ".
Connection alkali production by process can be divided into carbon filter, compression, calcining, weight it is grey, weight ash packaging, crystallization, refrigeration, dry ammonium process.
Salting-out crystallizer mother liquor temperature is 3-5 DEG C high compared with cool crystallizer mother liquor temperature in procedure of producing soda under joint alkaline process, brings knot of saltouing
Brilliant device mother II CNH4Height, female II Na+Low, salting-out crystallizer dissolved salt load weight, chloride yield is low, and mother liquor composition is poor, influences to join
Alkali carburizing reagent, so that conversion rate of carbonization is low, the systematic stock solution equivalent is big, ultimately causes soda ash low output, and system comprehensive energy consumption is high.
Summary of the invention
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, it is raw to provide a kind of union soda soda ash
Salting-out crystallization Outer Cooler liquefied ammonia cooling device during production, improve conversion rate of carbonization, reduce the systematic stock solution equivalent, improve soda ash and
Ammonium chloride product yield reduces system energy consumption.
Technical problem to be solved in the utility model is realized by technical solution below.
The utility model provides salting-out crystallization Outer Cooler liquefied ammonia cooling device in a kind of procedure of producing soda under joint alkaline process, special
Point is, including salting-out crystallizer and outer loop cooling device, and circulating pump of saltouing, outer loop drop are equipped on salting-out crystallizer
Warm device includes Outer Cooler and ammonia separator；
The middle part of salting-out crystallizer is equipped with central tube, and the top of Outer Cooler is equipped with mother liquor mouth, bottom goes out equipped with mother liquor
Material mouth, top are equipped with gas outlet, lower part is equipped with liquefied ammonia feedback outlet, and the middle part of ammonia separator is equipped with air inlet, bottom is equipped with liquefied ammonia
Discharge port；
Circulating pump of saltouing passes through mother liquor return pipeline by mother liquor piping connection to mother liquor mouth, mother liquor discharge port
It is connected to central tube, gas outlet is connected to air inlet by gas ammonia transfer pipeline, and liquefied ammonia discharge port is connected by liquefied ammonia return pipeline
It is connected to liquefied ammonia feedback outlet；
The top of ammonia separator is additionally provided with liquefied ammonia feed inlet and gas ammonia outlet, and liquefied ammonia feed inlet is connect by liquefied ammonia feeding pipe
The liquefied ammonia from ammonia storage tank is received, gas ammonia outlet accesses ice maker entrance by gas ammonia main pipe rail.
Preferably, the lower part of salting-out crystallizer is equipped with discharge port, is connected with thickener of saltouing below discharge port；
Saltout thickener top be equipped with magma feed inlet, top be equipped with the thick overflow port of salt, bottom be equipped with magma discharge port,
Discharge port of saltouing is connect by magma feeding pipe with magma feed inlet, and magma discharge port removes cold analysis knot by magma discharging pipeline
Brilliant device, the thick overflow port of salt are gone II barrel female by the thick overflow passage of salt.
Preferably, magma discharge nozzle road, which is equipped with, predicts magma pump.
Preferably, the top of salting-out crystallizer is additionally provided with feed inlet and overflow port of saltouing, and feed inlet is connected with half II charging
Pipeline, filtrate feeding pipe, sediment feeding pipe and raw material salt feeding pipe；Overflow port of saltouing by overflow passage of saltouing goes mother
II barrel.
Preferably, saltouing, there are two identical salting-out crystallizers for connection on the magma feed inlet of thickener.
Preferably, circulating pump of saltouing is that low lift and large flow rate is saltoutd circulating pump, the m of injection flow Q=60003/h -
7000m3/ h, the m of jetting height H=1.5-2.5m.
Preferably, circulating pump of saltouing is that low lift and large flow rate is saltoutd circulating pump, injection flow Q=6500m3/ h, injection are high
Spend H=2m.
Preferably, liquefied ammonia feeding pipe is equipped with automatic regulating valve.
Compared with prior art, the utility model has the following beneficial effects: the salting-out crystallization set by the utility model
Outer Cooler liquefied ammonia cooling device, the device reach cooling effect by the cooling back installation based on Outer Cooler；Utilize liquid
Ammonia further decreases salting-out crystallization temperature, so that salting-out crystallization temperature is reduced to 5 DEG C -12 DEG C for 12 DEG C -15 DEG C from tradition, knot of saltouing
Ammonium chloride crystals are further precipitated in brilliant device, reduce female II CNH that saltouts4, while improving female II Na that saltouts+, to improve carbonization system
It unites into tower AII mother liquor composition, improves carbonization conversion ratio, reduce the systematic stock solution equivalent, final raising soda ash and ammonium chloride product produce
Amount reduces system energy consumption.
Detailed description of the invention
Fig. 1 is salting-out crystallization Outer Cooler liquefied ammonia cooling device flow chart in procedure of producing soda under joint alkaline process.
1. half II feeding pipe in figure, 2. filtrate feeding pipes, 3. sediment feeding pipes, 4. raw material salt feeding pipes, 5.
Salting-out crystallizer, 6. saltout circulating pump, 7. mother liquor pipelines, 8. Outer Coolers, 9. mother liquor return pipelines, 10. gas ammonia delivery pipes
Road, 11. ammonia separators, 12. liquefied ammonia return pipelines, 13. liquefied ammonia feeding pipes, 14. gas ammonia general pipeline, 15. magma feeding pipes,
16. magma pump is predicted thickener of saltouing, 17., and 18. magmas discharge pipeline, the thick overflow passage of 19. salt, and 20. saltout overflow passage.
Specific embodiment
The specific technical solution of the utility model described further below, further in order to those skilled in the art
The utility model is understood, without constituting the limitation to its right.
Embodiment 1, salting-out crystallization Outer Cooler liquefied ammonia cooling device in a kind of procedure of producing soda under joint alkaline process,
Including salting-out crystallizer 5 and outer loop cooling device, circulating pump 6 of saltouing is installed on salting-out crystallizer 5.It is external
Circulating cooling device includes Outer Cooler 8 and ammonia separator 11.
The middle part of salting-out crystallizer 5 is equipped with central tube, and the top of Outer Cooler 8 is equipped with mother liquor mouth, bottom is equipped with mother liquor
Discharge port, top are equipped with gas outlet, lower part is equipped with liquefied ammonia feedback outlet, and the middle part of ammonia separator 11 is equipped with air inlet, bottom is equipped with
Liquefied ammonia discharge port.
Circulating pump 6 of saltouing is connected to mother liquor mouth by mother liquor pipeline 7, and mother liquor discharge port passes through mother liquor feed back pipe
Road 9 is connected to central tube, and gas outlet is connected to air inlet by gas ammonia transfer pipeline 10, and liquefied ammonia discharge port passes through liquefied ammonia feed back pipe
Road 12 is connected to liquefied ammonia feedback outlet.
The top of ammonia separator 11 is additionally provided with liquefied ammonia feed inlet and gas ammonia outlet, and liquefied ammonia feed inlet passes through liquefied ammonia feeding pipe
13 receive the liquefied ammonia from ammonia storage tank, and the gas ammonia of evaporation is after the separation of ammonia separator 11 through passing through gas ammonia main pipe rail by gas ammonia outlet
14 access ice maker entrances.
In salting-out crystallization temperature-fall period, circulating pump 6 of saltouing is connected to mother liquor mouth by mother liquor pipeline 7, takes out
Mother liquor liquefied ammonia into Outer Cooler 8, with Outer Cooler 8 in salting-out crystallizer 5 is taken to carry out heat exchange cooling.Mother liquor walks 8 tube side of Outer Cooler, liquid
Ammonia walks 8 shell side of Outer Cooler, and liquefied ammonia absorbs heat in Outer Cooler 8 and is evaporated, and is connected via gas outlet by gas ammonia transfer pipeline 10
To the air inlet of ammonia separator 11, the liquefied ammonia that ammonia separator 11 separates passes through liquefied ammonia return pipeline 12 via liquefied ammonia discharge port
It is connected to liquefied ammonia feedback outlet.Mother liquor after cooling returns to salting-out crystallizer 5 by mother liquor return pipeline 9 via mother liquor discharge port
Central tube dissolves and absorbs the salt being added in salting-out crystallizer 5, and ammonium chloride product is precipitated.
Embodiment 2, according to salting-out crystallization Outer Cooler liquefied ammonia cooling device in the procedure of producing soda under joint alkaline process of embodiment 1；
The lower part of salting-out crystallizer 5 is equipped with discharge port, is connected with thickener 16 of saltouing below discharge port.The saltout top of thickener 16 is set
There are magma feed inlet, top to be equipped with the thick overflow port of salt, bottom equipped with magma discharge port, discharge port of saltouing passes through magma feeding pipe
15 connect with magma feed inlet, and magma discharge port removes cool crystallizer by magma discharging pipeline 18, and the thick overflow port of salt passes through salt
Thick overflow passage 19 goes II barrel female.Magma discharging pipeline 18, which is equipped with, predicts magma pump 17.Circulating pump 5 of saltouing is the big stream of low lift
Measure circulating pump of saltouing, injection flow Q=6900m3/ h, jetting height H=2.4m.
Embodiment 3, according to salting-out crystallization Outer Cooler liquefied ammonia cooling dress in the procedure of producing soda under joint alkaline process of embodiment 1 or 2
It sets；The top of salting-out crystallizer 5 is additionally provided with feed inlet and saltouts overflow port, feed inlet be connected with half II feeding pipe 1, filtrate into
Expects pipe road 2, sediment feeding pipe 3 and raw material salt feeding pipe 4；Overflow port of saltouing is gone II barrel female by overflow passage 20 of saltouing.
The present embodiment difference from Example 2 circulating pump 5 that is to saltout is that low lift and large flow rate is saltoutd circulating pump, injection flow Q=
6100m3/ h, jetting height H=1.6m.
Embodiment 4, according to salting-out crystallization Outer Cooler liquefied ammonia cooling device in the procedure of producing soda under joint alkaline process of embodiment 2；
Connection is saltoutd on the magma feed inlet of thickener 16 there are two identical salting-out crystallizer, can with active balance salting-out crystallizer and
Saltout thickener workload, improve salting-out crystallization efficiency.The present embodiment difference from Example 2 is circulating pump of saltouing
5 saltout circulating pump for low lift and large flow rate, injection flow Q=6500m3/ h, jetting height H=2m.
Embodiment 5, according to salting-out crystallization Outer Cooler liquefied ammonia in the procedure of producing soda under joint alkaline process of embodiment 1-5 any one
Cooling device；Liquefied ammonia feeding pipe 13 is equipped with automatic regulating valve, can be changed according to the liquid level of ammonia separator 11 come regulating valve
Door opening size and then control liquefied ammonia flow.
Claims (8)
1. salting-out crystallization Outer Cooler liquefied ammonia cooling device in a kind of procedure of producing soda under joint alkaline process, it is characterised in that: including saltouing
Crystallizer and outer loop cooling device, circulating pump of saltouing is equipped on salting-out crystallizer, and outer loop cooling device includes outer
Cooler and ammonia separator；
The middle part of salting-out crystallizer is equipped with central tube, the top of Outer Cooler is equipped with mother liquor mouth, bottom is equipped with mother liquor discharge port,
Top is equipped with gas outlet, lower part is equipped with liquefied ammonia feedback outlet, and the middle part of ammonia separator is equipped with air inlet, bottom discharges equipped with liquefied ammonia
Mouthful；
Circulating pump of saltouing is connected by mother liquor piping connection to mother liquor mouth, mother liquor discharge port by mother liquor return pipeline
To central tube, gas outlet is connected to air inlet by gas ammonia transfer pipeline, and liquefied ammonia discharge port is connected to by liquefied ammonia return pipeline
Liquefied ammonia feedback outlet；
The top of ammonia separator be additionally provided with liquefied ammonia feed inlet and gas ammonia outlet, liquefied ammonia feed inlet by liquefied ammonia feeding pipe receive come
From the liquefied ammonia of ammonia storage tank, gas ammonia outlet accesses ice maker entrance by gas ammonia main pipe rail.
2. salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process according to claim 1, special
Sign is: the lower part of salting-out crystallizer is equipped with discharge port, is connected with thickener of saltouing below discharge port；
The top of the thickener of saltouing is equipped with magma feed inlet, top is equipped with the thick overflow port of salt, bottom is equipped with magma discharge port,
Discharge port of saltouing is connect by magma feeding pipe with magma feed inlet, and magma discharge port removes cold analysis knot by magma discharging pipeline
Brilliant device, the thick overflow port of salt are gone II barrel female by the thick overflow passage of salt.
3. salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process according to claim 2, special
Sign is: magma discharge nozzle road, which is equipped with, predicts magma pump.
4. salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process according to claim 1, special
Sign is: the top of salting-out crystallizer is additionally provided with feed inlet and overflow port of saltouing, and feed inlet is connected with half II feeding pipe, filtrate
Feeding pipe, sediment feeding pipe and raw material salt feeding pipe；Overflow port of saltouing is gone II barrel female by overflow passage of saltouing.
5. salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process according to claim 2, special
Sign is: there are two identical salting-out crystallizers for connection on the magma feed inlet of the thickener of saltouing.
6. salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process according to claim 1, special
Sign is: the circulating pump of saltouing is that low lift and large flow rate is saltoutd circulating pump, the m of injection flow Q=60003/h -7000m3/ h,
The m of jetting height H=1.5-2.5m.
7. salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process according to claim 6, special
Sign is: the circulating pump of saltouing is that low lift and large flow rate is saltoutd circulating pump, injection flow Q=6500m3/ h, jetting height H=
2m。
8. salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process according to claim 1, special
Sign is: liquefied ammonia feeding pipe is equipped with automatic regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821273625.5U CN209322482U (en) | 2018-08-08 | 2018-08-08 | Salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821273625.5U CN209322482U (en) | 2018-08-08 | 2018-08-08 | Salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process |
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| CN209322482U true CN209322482U (en) | 2019-08-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921685A (en) * | 2019-11-26 | 2020-03-27 | 连云港市福源德邦科技发展有限公司 | Crystallization reverse material flow device and method in combined-soda-process soda ash production process |
-
2018
- 2018-08-08 CN CN201821273625.5U patent/CN209322482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110921685A (en) * | 2019-11-26 | 2020-03-27 | 连云港市福源德邦科技发展有限公司 | Crystallization reverse material flow device and method in combined-soda-process soda ash production process |
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