CN109568996A - A kind of three sections of evaporation technologies of concentrating sodium aluminate solution - Google Patents
A kind of three sections of evaporation technologies of concentrating sodium aluminate solution Download PDFInfo
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- CN109568996A CN109568996A CN201811559953.6A CN201811559953A CN109568996A CN 109568996 A CN109568996 A CN 109568996A CN 201811559953 A CN201811559953 A CN 201811559953A CN 109568996 A CN109568996 A CN 109568996A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
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Abstract
The present invention relates to a kind of evaporation technologies, more particularly to one kind to be used for three sections of evaporation technologies of alumina producer concentrating sodium aluminate solution.Vaporizing raw liquor is divided into one section of vaporizing raw liquor, dual circulation stoste, three sections of vaporizing raw liquors, and one section of vaporizing raw liquor enters one section of vapo(u)rization system and is evaporated concentration, and completion liquid is one section of discharging mother liquor；Dual circulation stoste enters dual circulation system and is evaporated concentration, and completion liquid is two sections of discharging mother liquors；Three sections of vaporizing raw liquors, which enter three sections of vapo(u)rization systems and are evaporated after concentration, to be entered back into spontaneous evaporation system and carries out flash distillation cooling, and completions liquid is three sections of discharging mother liquors.Advantages of the present invention effect: vaporizing raw liquor is divided into three sections and is evaporated concentration by the present invention, and the steam consumption of evaporation can be effectively reduced, and discharge concentration can be effectively controlled, to realize the energy-efficient purpose of vapo(u)rization system.
Description
Technical field
The present invention relates to a kind of evaporation technologies, more particularly to a kind of alumina producer concentrating sodium aluminate solution that is used for be steamed with three sections
Hair technique.
Background technique
Six effects or seven effects two that alumina producer vapo(u)rization system technical field is generally used for concentrating sodium aluminate solution at present
Section evaporation technology, the evaporation technique is with the steam consumption is low, evaporative water capacity is big, running efficiency is high, operation and controlled level are high, the equipment longevity
Life is long, maintenance cost is low, does not run the features such as alkali, for alumina producer standard configuration technology that is newly-built or reconstructing.And current country is greatly
In the case that power promotion energy-saving and emission-reduction, especially national requirements for environmental protection tend to be stringent, more energy-efficient evaporation technology technology is sought
The always direction of scientific research personnel's effort.It is equally known that it is evaporation effect number that the theoretical steam consumption of multiple-effect evaporation, which is 1/n(n), then six
Effect evaporation the theoretical steam consumption be 0.167 t- vapour/t- water, seven effect evaporation the theoretical steam consumptions be 0.143t- vapour/t- water, actually by
In current alumina producer evaporation all be use two-stage evaporation technique, six effect actual steam consumptions 0.23~0.26 t- vapour/t- water it
Between, seven effect actual steam consumptions all have a certain gap with theoretical value between 0.18~0.22 t- vapour/t- water.In order to realize oxidation
Aluminium manufacturer's evaporation energy consumption further decreases, and achievees the purpose that factory's energy-saving and emission-reduction, meets the requirements at the higher level of national environmental protection, needs one
Concentrating sodium aluminate solution evaporation technology is planted to realize.
Summary of the invention
The present invention provides a kind of concentrating sodium aluminate solution three sections of steamings to solve above-mentioned technical problem
Hair technique, it is therefore an objective to realize that the steam consumption of alumina producer evaporation reduces, carry out factory's energy-saving and emission-reduction.
Three sections of evaporation technologies of a kind of concentrating sodium aluminate solution of the invention for the above-mentioned purpose, alumina producer six effect or
In seven effect evaporation technologies, vaporizing raw liquor is divided into one section of vaporizing raw liquor, dual circulation stoste, three sections of vaporizing raw liquors, one section of evaporation
Stoste enters one section of vapo(u)rization system and is evaporated concentration, and completion liquid is one section of discharging mother liquor；Dual circulation stoste enters two sections of steamings
Hair system is evaporated concentration, and completion liquid is two sections of discharging mother liquors；Three sections of vaporizing raw liquors enter three sections of vapo(u)rization systems and are evaporated
Spontaneous evaporation system is entered back into after concentration and carries out flash distillation cooling, and completion liquid is three sections of discharging mother liquors.
The vaporizing raw liquor is divided into one section of vaporizing raw liquor, dual circulation stoste, three sections of vaporizing raw liquors in 1:1:1 ratio,
Each section of stoste can summarize or individually carry out feeding.
One section of vapo(u)rization system forms a vapo(u)rization system by least 1 evaporator, evaporator be tubular evaparator,
Plate-type evaporator or shell-and-tube evaporator.
The dual circulation system forms a vapo(u)rization system by least 1 evaporator, evaporator be tubular evaparator,
Plate-type evaporator or shell-and-tube evaporator.
Three sections of vapo(u)rization systems form a vapo(u)rization system by least 1 evaporator, evaporator be tubular evaparator,
Plate-type evaporator or shell-and-tube evaporator.
The spontaneous evaporation system forms a spontaneous evaporation system by least 1 flash-pot.
One section of discharging mother liquor, two sections of discharging mother liquors, three sections of discharging mother liquors send subsequent handling to use, and each section of discharging is female
Liquid can converge or individually discharge.
Advantages of the present invention effect: vaporizing raw liquor is divided into three sections and is evaporated concentration by the present invention, and evaporation can be effectively reduced
The steam consumption, discharge concentration can be effectively controlled, to realize the energy-efficient purpose of vapo(u)rization system.
The requirements at the higher level of national environmental protection can be met, while also with the steam consumption is low, evaporative water capacity is big, running efficiency is high, operation
With controlled level is high, equipment life is long, maintenance cost is low, does not run the features such as alkali.
Detailed description of the invention
Fig. 1 is process schematic representation of the invention.
In figure: 1, one section of vapo(u)rization system；2, dual circulation system；3, three sections of vapo(u)rization systems；4, spontaneous evaporation system.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
As shown in Figure 1, a kind of three sections of evaporation technologies of concentrating sodium aluminate solution of the invention, in six effects of alumina producer or seven
It imitates in evaporation technology, vaporizing raw liquor is divided into one section of vaporizing raw liquor, dual circulation stoste, three sections of vaporizing raw liquors, one section of evaporation is former
Liquid enters one section of vapo(u)rization system 1 and is evaporated concentration, and completion liquid is one section of discharging mother liquor；Dual circulation stoste enters dual circulation
System 2 is evaporated concentration, and completion liquid is two sections of discharging mother liquors；Three sections of vaporizing raw liquors enter three sections of vapo(u)rization systems 3 and are evaporated
Spontaneous evaporation system 4 is entered back into after concentration and carries out flash distillation cooling, and completion liquid is three sections of discharging mother liquors.
The vaporizing raw liquor is divided into one section of vaporizing raw liquor, dual circulation stoste, three sections of vaporizing raw liquors in 1:1:1 ratio,
Each section of stoste can summarize or individually carry out feeding.
One section of vapo(u)rization system 1 forms a vapo(u)rization system by least 1 evaporator, and evaporator is tubular type evaporation
Device, plate-type evaporator or shell-and-tube evaporator.
The dual circulation system 2 forms a vapo(u)rization system by least 1 evaporator, and evaporator is tubular type evaporation
Device, plate-type evaporator or shell-and-tube evaporator.
Three sections of vapo(u)rization systems 3 form a vapo(u)rization system by least 1 evaporator, and evaporator is tubular type evaporation
Device, plate-type evaporator or shell-and-tube evaporator.
The spontaneous evaporation system 4 forms a spontaneous evaporation system by least 1 flash-pot.
One section of discharging mother liquor, two sections of discharging mother liquors, three sections of discharging mother liquors send subsequent handling to use, and each section of discharging is female
Liquid can converge or individually discharge.
Although the embodiment of the present application is described above in conjunction with Fig. 1, the application does not limit to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, is not restrictive, those skilled in the art
Under the enlightenment of the application, when not departing from the application objective and scope of the claimed protection, it can also make very
Multi-form, these are belonged within the protection scope of the application.
Claims (7)
1. a kind of three sections of evaporation technologies of concentrating sodium aluminate solution, it is characterised in that: based on six effects or seven effects in alumina producer
In evaporation technology, vaporizing raw liquor is divided into one section of vaporizing raw liquor, dual circulation stoste, three sections of vaporizing raw liquors, one section of vaporizing raw liquor into
Enter one section of vapo(u)rization system and be evaporated concentration, completion liquid is one section of discharging mother liquor；Dual circulation stoste enters dual circulation system
It is evaporated concentration, completion liquid is two sections of discharging mother liquors；After three sections of vaporizing raw liquors are evaporated concentration into three sections of vapo(u)rization systems
It enters back into spontaneous evaporation system and carries out flash distillation cooling, completion liquid is three sections of discharging mother liquors.
2. a kind of three sections of evaporation technologies of concentrating sodium aluminate solution according to claim 1, it is characterised in that vaporizing raw liquor
Be divided into one section of vaporizing raw liquor, dual circulation stoste, three sections of vaporizing raw liquors in 1:1:1 ratio, each section of stoste can summarize or individually into
Row feeding.
3. a kind of three sections of evaporation technologies of concentrating sodium aluminate solution according to claim 1, it is characterised in that one section of evaporation
System forms a vapo(u)rization system by least 1 evaporator, and evaporator is tubular evaparator, plate-type evaporator or shell-and-tube evaporation
Device.
4. a kind of three sections of evaporation technologies of concentrating sodium aluminate solution according to claim 1, it is characterised in that dual circulation
System forms a vapo(u)rization system by least 1 evaporator, and evaporator is tubular evaparator, plate-type evaporator or shell-and-tube evaporation
Device.
5. a kind of three sections of evaporation technologies of concentrating sodium aluminate solution according to claim 1, it is characterised in that three sections of evaporations
System forms a vapo(u)rization system by least 1 evaporator, and evaporator is tubular evaparator, plate-type evaporator or shell-and-tube evaporation
Device.
6. a kind of three sections of evaporation technologies of concentrating sodium aluminate solution according to claim 1, it is characterised in that spontaneous evaporation system
System forms a spontaneous evaporation system by least 1 flash-pot.
7. a kind of three sections of evaporation technologies of concentrating sodium aluminate solution according to claim 1, it is characterised in that one section of discharging
Mother liquor, two sections of discharging mother liquors, three sections of discharging mother liquors send subsequent handling to use, and each section of discharging mother liquor can converge or individually be gone out
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559953.6A CN109568996A (en) | 2018-12-20 | 2018-12-20 | A kind of three sections of evaporation technologies of concentrating sodium aluminate solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559953.6A CN109568996A (en) | 2018-12-20 | 2018-12-20 | A kind of three sections of evaporation technologies of concentrating sodium aluminate solution |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648733A (en) * | 2009-09-11 | 2010-02-17 | 江苏双良空调设备股份有限公司 | Multi-effect distillation seawater desalinating device of multi-stage type condenser |
| CN203852855U (en) * | 2014-05-06 | 2014-10-01 | 郑州海利化工装备有限公司 | Six-efficiency three-segment evaporation indirect condensation evaporator group for concentrated sodium aluminate solution |
| CN203852856U (en) * | 2014-05-06 | 2014-10-01 | 郑州海利化工装备有限公司 | Seven-effect and three-section evaporation indirect-condensation evaporator set for concentrated sodium aluminate solution |
-
2018
- 2018-12-20 CN CN201811559953.6A patent/CN109568996A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648733A (en) * | 2009-09-11 | 2010-02-17 | 江苏双良空调设备股份有限公司 | Multi-effect distillation seawater desalinating device of multi-stage type condenser |
| CN203852855U (en) * | 2014-05-06 | 2014-10-01 | 郑州海利化工装备有限公司 | Six-efficiency three-segment evaporation indirect condensation evaporator group for concentrated sodium aluminate solution |
| CN203852856U (en) * | 2014-05-06 | 2014-10-01 | 郑州海利化工装备有限公司 | Seven-effect and three-section evaporation indirect-condensation evaporator set for concentrated sodium aluminate solution |
Non-Patent Citations (2)
| Title |
|---|
| 中国有色金属工业协会编: "《有色金属系列丛书 中国铝业》", 31 March 2013, 北京冶金工业出版社 * |
| 吕学伟等: "《冶金概论》", 30 April 2017, 北京冶金工业出版社 * |
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