CN204778868U - Aluminium oxide high pressure dissolves out dilution trap exhaust steam recovery unit - Google Patents
Aluminium oxide high pressure dissolves out dilution trap exhaust steam recovery unit Download PDFInfo
- Publication number
- CN204778868U CN204778868U CN201520512153.4U CN201520512153U CN204778868U CN 204778868 U CN204778868 U CN 204778868U CN 201520512153 U CN201520512153 U CN 201520512153U CN 204778868 U CN204778868 U CN 204778868U
- Authority
- CN
- China
- Prior art keywords
- exhaust steam
- alkali
- high pressure
- recovery unit
- dilution trap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000010790 dilution Methods 0.000 title abstract description 12
- 239000012895 dilution Substances 0.000 title abstract description 12
- 238000011084 recovery Methods 0.000 title abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002244 precipitate Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 9
- 230000029087 digestion Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007701 flash-distillation Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides a high pressure dissolves out dilution trap exhaust steam recovery unit, the high pressure that relates to an aluminium oxide production process dissolves out the recovery unit that the dilution trap contains the depression belt alkali steam of solid particle thing. Its structure of its characterized in that includes that the baffling formula deposits device and heat reclamation device. The utility model discloses an aluminium oxide high pressure dissolves out dilution trap exhaust steam recovery unit, the combination forms with gas -liquid heat exchange recovery unit precipitate to remove the alkali device by the baffling formula, and the high pressure dissolves out the dilution trap exhaust steam and contains the exhaust steam of alkali low pressure and at first get into the alkali device (sedimentation tank) that removes that has the baffling board and precipitate, remove preliminary treatment such as alkali through washing secondary after the water heater heat transfer, and then gets into the fat pipe directness heat transfer device who installs the crisscross column plate formula water -locator of multilayer and carry out the exhaust steam recovery processing. Effective solving the low pressure exhaust steam that contains alkali, to retrieve the degree of difficulty big, leads to the fact the empty polluted environment of arranging, and low problem is rateed to energy utilization.
Description
Technical field
A kind of high pressure digestion dilution trap steam exhaust recovering device, the high pressure digestion dilution trap relating to a kind of aluminum oxide production process contains the retrieving arrangement of the lower pressure zone alkali steam of solid particulate matter.
Background technology
In aluminum oxide production process, high pressure digestion dissolved mineral slurry, from the discharging of final stage flasher, enters dilution trap after dilution, flash distillation are lowered the temperature further, send dilution pit.Exhaust steam (i.e. dilution trap exhaust steam) after flash distillation is emptying after wash water well heater and spray water carry out heat exchange, due to exhaust steam band alkali in actual production, also material can be with during unit fluctuation, existing steam exhaust recovering device is easy to blocking and is difficult to cleaning, normally cannot run, cause exhaust steam and waste heat recovery thereof thorough, a large amount of arranges containing alkali low pressure exhaust steam (pressure is at about 0.1MPa) sky, contaminate environment on the one hand, causes the waste of heat energy on the other hand.
Summary of the invention
The purpose of this utility model, just for the deficiency that above-mentioned prior art exists, provides a kind of low pressure exhaust steam recovery difficult that can effectively solve containing alkali large, causes sky pollution discharging environment, the aluminum oxide high-pressure solution thinning groove steam exhaust recovering device of the low problem of energy utilization rate.
The purpose of this utility model is achieved through the following technical solutions.
A kind of aluminum oxide high-pressure solution thinning groove steam exhaust recovering device, is characterized in that its structure comprises deflector type settler and heat reclamation device; Wherein,
Deflector type settler, this settler comprises a cavity housing; A sidewall of cavity housing is provided with exhaust steam inlet pipe; Under the upper top cover of cavity housing, be provided with the upper traverse baffle vertical with exhaust steam airintake direction; On the going to the bottom of cavity housing, be provided with the lower traverse baffle vertical with exhaust steam airintake direction; The upper top cover of the cavity housing outside the upper traverse baffle being positioned at end is provided with exhaust steam outlet; Liquid discharge pipe is provided with in the housing sidewall bottom relative with exhaust steam inlet pipe;
Heat reclamation device, this heat reclamation device is water spray type vapor liquid heat exchange device, and its structure comprises: go to the bottom be fixed on deflector type settler upper top cover exhaust steam outlet on tubular shell; Be provided with water inlet pipe and spray pipe on tubular shell top, be provided with below spray pipe be staggered, interval arrange, dismountable water distribution board.
A kind of aluminum oxide high-pressure solution thinning groove steam exhaust recovering device of the present utility model, is characterized in that being provided with some through holes on the lower traverse baffle of deflector type settler.
A kind of aluminum oxide high-pressure solution thinning groove steam exhaust recovering device of the present utility model, precipitate except alkali device and gas-liquid heat reclamation device combine by deflector type, first the secondary of high pressure digestion dilution trap exhaust steam after the heat exchange of wash water well heater enter carrying out precipitating, except pre-treatment such as alkali, and then entering the fat pipe direct heat exchange device being provided with multi-layer intercrossed column plate type water distributor and carry out exhaust steam recycling except alkali device (settling tank) with traverse baffle containing the exhaust steam of alkali low pressure.The low pressure exhaust steam recovery difficult that can effectively solve containing alkali is large, causes sky pollution discharging environment, the low problem of energy utilization rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of aluminum oxide high-pressure solution thinning groove steam exhaust recovering device, its structure comprises:
Deflector type settler, this settler comprises a cavity housing 1; A sidewall of cavity housing is provided with exhaust steam inlet pipe 2; Under the upper top cover of cavity housing, be provided with the upper traverse baffle 3 vertical with exhaust steam airintake direction; On the going to the bottom of cavity housing, be provided with the lower traverse baffle 4 vertical with exhaust steam airintake direction; The upper top cover of the cavity housing outside the upper traverse baffle being positioned at end is provided with exhaust steam outlet; Liquid discharge pipe 5 is provided with in the housing sidewall bottom relative with exhaust steam inlet pipe;
Heat reclamation device, this heat reclamation device is water spray type vapor liquid heat exchange device, and its structure comprises: go to the bottom be fixed on deflector type settler upper top cover exhaust steam outlet on tubular shell 6; Be provided with water inlet pipe 7 and spray pipe 8 on tubular shell top, be provided with below spray pipe be staggered, interval arrange, dismountable water distribution board 9.
A kind of aluminum oxide high-pressure solution thinning groove steam exhaust recovering device of the present utility model, after exhaust steam enters deflector type settler, due to the volume explosion of cavity housing, exhaust steam flow velocity is slowed down greatly, the alkali lye carried secretly in exhaust steam after meeting traverse baffle and material fall by gravity settling, greatly reduce exhaust steam band alkali and band material, slow down equipment and pipeline scarring speed; The lower traverse baffle of deflector type settler has several rectangular opening, and water supply flows through.Heat reclamation device is provided with the fat pipe direct heat exchanger of multi-layer intercrossed column plate type water distributor, and interchanger sectional area is greater than long-pending 3 times of exhaust steam tube section.Under the effect of exhaust steam after removing alkali at pressure reduction, enter interchanger and carry out direct heat exchange.Low-temp. spraying trickle is through spray header and multi-layer intercrossed column plate type water distributor water distribution uniformity, form cascade, carry out abundant contact heat-exchanging with exhaust steam, the spray water after heat exchange enters settling tank under gravity, sent outside by hot water pump 10 and recycle, exhaust steam is emptying.
A kind of aluminum oxide high-pressure solution thinning groove steam exhaust recovering device of the present utility model, can play good lixiviating, exhaust steam residual heat can well be utilized, and structure is simple, installation and maintenance are convenient, with low cost, long service life.
Claims (2)
1. an aluminum oxide high-pressure solution thinning groove steam exhaust recovering device, is characterized in that its structure comprises deflector type settler and heat reclamation device; Wherein,
Deflector type settler, this settler comprises a cavity housing; A sidewall of cavity housing is provided with exhaust steam inlet pipe; Under the upper top cover of cavity housing, be provided with the upper traverse baffle vertical with exhaust steam airintake direction; On the going to the bottom of cavity housing, be provided with the lower traverse baffle vertical with exhaust steam airintake direction; The upper top cover of the cavity housing outside the upper traverse baffle being positioned at end is provided with exhaust steam outlet; Liquid discharge pipe is provided with in the housing sidewall bottom relative with exhaust steam inlet pipe;
Heat reclamation device, this heat reclamation device is water spray type vapor liquid heat exchange device, and its structure comprises: go to the bottom be fixed on deflector type settler upper top cover exhaust steam outlet on tubular shell; Be provided with water inlet pipe and spray pipe on tubular shell top, be provided with below spray pipe be staggered, interval arrange, dismountable water distribution board.
2. a kind of aluminum oxide high-pressure solution thinning groove steam exhaust recovering device according to claim 1, is characterized in that being provided with some through holes on the lower traverse baffle of deflector type settler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520512153.4U CN204778868U (en) | 2015-07-16 | 2015-07-16 | Aluminium oxide high pressure dissolves out dilution trap exhaust steam recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520512153.4U CN204778868U (en) | 2015-07-16 | 2015-07-16 | Aluminium oxide high pressure dissolves out dilution trap exhaust steam recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204778868U true CN204778868U (en) | 2015-11-18 |
Family
ID=54518960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520512153.4U Active CN204778868U (en) | 2015-07-16 | 2015-07-16 | Aluminium oxide high pressure dissolves out dilution trap exhaust steam recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204778868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120316A (en) * | 2017-12-20 | 2018-06-05 | 大连葆光节能空调设备厂 | A kind of folded plate recovering device with spraying function |
-
2015
- 2015-07-16 CN CN201520512153.4U patent/CN204778868U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120316A (en) * | 2017-12-20 | 2018-06-05 | 大连葆光节能空调设备厂 | A kind of folded plate recovering device with spraying function |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |