CN203663690U - Ammonia recovery tower - Google Patents
Ammonia recovery tower Download PDFInfo
- Publication number
- CN203663690U CN203663690U CN201320867016.3U CN201320867016U CN203663690U CN 203663690 U CN203663690 U CN 203663690U CN 201320867016 U CN201320867016 U CN 201320867016U CN 203663690 U CN203663690 U CN 203663690U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- tower body
- whirlwind
- dehydrater
- bend pipe
- 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.)
- Expired - Fee Related
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 147
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 73
- 238000011084 recovery Methods 0.000 title claims abstract description 18
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 16
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 12
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 12
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 6
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 6
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 6
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 claims abstract description 5
- 229940007718 zinc hydroxide Drugs 0.000 claims abstract description 5
- 229910021511 zinc hydroxide Inorganic materials 0.000 claims abstract description 5
- 238000010521 absorption reaction Methods 0.000 claims description 24
- 230000009615 deamination Effects 0.000 claims description 23
- 238000006481 deamination reaction Methods 0.000 claims description 23
- 238000007599 discharging Methods 0.000 claims description 20
- 239000000725 suspension Substances 0.000 claims description 13
- 239000002912 waste gas Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000006227 byproduct Substances 0.000 abstract description 2
- 150000004683 dihydrates Chemical class 0.000 abstract description 2
- 229910052602 gypsum Inorganic materials 0.000 abstract description 2
- 239000010440 gypsum Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000011787 zinc oxide 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to an ammonia recovery tower which comprises an ammonia stripping tower body, an ammonia absorbing tower body and a gas delivery device. The utility model relates to equipment for ammonium sulfate wastewater treatment and ammonia water recovery for producing zinc hydroxide and belongs to the technical field of producing zinc hydroxide through ammonia stripping reaction in ammonium sulfate wastewater and ammonia absorbing reaction in a zinc sulfate solution. The ammonia recovery tower has the advantages of low cost and convenience in operation and is especially used for treatment for ammonium sulfate wastewater discharged by the production of activated zinc oxide with an acid process. Ammonia water can be recycled, and a by-product, namely a calcium sulfate (dihydrate gypsum) finished-product is obtained. The ammonia recovery tower can lower the production cost, saves energy and reduces emission.
Description
Technical field
The utility model relates to a kind of recovery tower, is specifically related to a kind of Ammonia recovery tower, for ammonium sulfate waste water treatment, reclaims the equipment of ammoniacal liquor production zinc oxide.
Background technology
Acid system is produced activated zinc oxide discharge ammonium sulfate waste water at present, liquid containing ammonium sulfate concentration is too low, cost recovery is high, general manufacturer directly discharges, polluted underground water, cause environmental pollution, ammonium sulfate waste water adds milk of lime reaction and generates calcium sulfate and aqua ammonia mixing suspension, can not be with general packed tower stripping ammonia, because being suspension, spray easily precipitates obstruction seriously, what absorb that ammonia uses is solution of zinc sulfate simultaneously, because solution of zinc sulfate and ammonia gas react generate ammonium sulfate and zinc hydroxide suspension, and can not be with general packed tower absorption ammonia.Therefore in order to reduce the discharge of ammonium sulfate waste water, be necessary to apply for a kind of ammonia recycling device that is suitable for reclaim sulfuric acid ammonium waste water.
Utility model content
The purpose of this utility model is to address the deficiencies of the prior art, and provides a kind of cost low, easy to operate Ammonia recovery tower.
For achieving the above object, technical solution adopted in the utility model is:
A kind of Ammonia recovery tower, it comprises deamination tower body, ammonia absorption tower body and air transporting arrangement;
Described deamination tower body comprises the first charging aperture, air inlet, ammonia outlet and the first discharging opening, and described the first charging aperture and ammonia outlet are arranged at respectively deamination tower body upper end, and described air inlet and the first discharging opening are arranged at respectively described deamination tower body lower end;
Described ammonia absorption tower body comprises the second charging aperture, enters ammonia mouth, waste gas outlet and the second discharging opening, and described the second charging aperture and waste gas outlet are arranged at respectively described ammonia absorption tower upper end, enter ammonia mouth and the second discharging opening and are arranged at respectively described ammonia absorption tower body lower end;
Described air transporting arrangement comprises blower fan, heater, the first whirlwind dehydrater and the second whirlwind dehydrater, and described blower fan is communicated with described air inlet by heater; Described the first whirlwind dehydrater is connected with described deamination tower body by ammonia outlet, and the lower end of described the first whirlwind dehydrater is provided with the first bend pipe being connected with described deamination tower body, the top of described the first whirlwind dehydrater with enter ammonia mouth and be connected; Described the second whirlwind dehydrater is connected with described ammonia absorption tower body by waste gas outlet, described the second whirlwind dehydrater lower end is provided with the second bend pipe being connected with described ammonia absorption tower body, and the top of described the second whirlwind dehydrater is provided with the circulation pipe being connected with blower fan.
As further improvement of the utility model, described the first charging aperture is calcium sulfate and the import of aqua ammonia mixing suspension, described the first discharging opening is suspension of calcium sulfate outlet, described the second charging aperture is solution of zinc sulfate import, and described the second discharging opening is ammonium sulfate and the outlet of zinc hydroxide suspension.
As further improvement of the utility model, in described the first bend pipe and the second bend pipe, be respectively arranged with water seal.
As further improvement of the utility model, described the first whirlwind dehydrater and the second whirlwind dehydrater are that outer tube wall is placed on the structure in inner tube.
As further improvement of the utility model, described the first bend pipe lower end is provided with the first blowoff valve, and described the second bend pipe lower end is provided with the second blowoff valve.
Compared with prior art, the beneficial effect that the utility model is obtained is:
Ammonia recovery tower cost provided by the utility model is low, easy to operate, can be exclusively used in the improvement of acid system production activated zinc oxide discharge ammonium sulfate waste water.Reach ammonia circulation and use, by-product calcium sulfate (dihydrate gypsum) finished product of gained can be sold.Reduce production costs, energy-saving and emission-reduction, play an important role to protection of the environment.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In the accompanying drawings: 1 deamination tower body, 2 ammonia absorption tower bodies, 3 first charging apertures, 4 second charging apertures, 5 first discharging openings, 6 second discharging openings, 7 waste gas outlets, 8 second whirlwind dehydraters, 9 second bend pipes, 10 ammonia imports, 11 first whirlwind dehydraters, 12 ammonia outlet, 13 first bend pipes, 14 blower fans, 15 heaters, 16 air inlets, 17 circulation pipes, 18 first blowoff valves, 19 second blowoff valves.
Detailed description of the invention
Below in conjunction with accompanying drawing 1, the utility model is described in more detail.
As shown in Figure 1, a kind of Ammonia recovery tower, it comprises deamination tower body 1, ammonia absorption tower body 2 and air transporting arrangement; Described deamination tower body 1 comprises the first charging aperture 3, air inlet 16, ammonia outlet 12 and the first discharging opening 5, described the first charging aperture 3 and ammonia outlet 12 are arranged at respectively deamination tower body 1 upper end, and described air inlet 16 and the first discharging opening 5 are arranged at respectively described deamination tower body 1 lower end; Described ammonia absorption tower body 2 comprises the second charging aperture 4, enters ammonia mouth 10, waste gas outlet 7 and the second discharging opening 6, described the second charging aperture 4 and waste gas outlet 7 are arranged at respectively described ammonia absorption tower 2 upper ends, enter ammonia mouth 10 and the second discharging opening 6 and are arranged at respectively described ammonia absorption tower body 2 lower ends; Described air transporting arrangement comprises blower fan 14, heater 15, the first whirlwind dehydrater 11 and the second whirlwind dehydrater 8, and described blower fan 14 is communicated with described air inlet 16 by heater 15; Described the first whirlwind dehydrater 11 is connected with described deamination tower body 1 by ammonia outlet 12, the lower end of described the first whirlwind dehydrater 11 is provided with the first bend pipe 13 being connected with described deamination tower body 1, in the first bend pipe 13, be provided with water seal, the top of described the first whirlwind dehydrater 11 with enter ammonia mouth 16 and be connected; Described the second whirlwind dehydrater 8 is connected with described ammonia absorption tower body by waste gas outlet 7, described the second whirlwind dehydrater 8 lower ends are provided with the second bend pipe 9 being connected with described ammonia absorption tower body 2, in the second bend pipe 9, be provided with water seal, the top of described the second whirlwind dehydrater 11 is provided with the circulation pipe 1 being connected with blower fan 14, described the first bend pipe 13 lower ends are provided with the first blowoff valve 18, and described the second bend pipe 9 lower ends are provided with the second blowoff valve 19.
The utility model is realized based on following principle:
Circulating pump is sent into deamination tower body by the even sprinkle of water-locator by calcium sulfate and aqua ammonia suspension by the first charging aperture 3, air is heated to 60 DEG C by heater 15, by air blast 14, by hot-air inlets 16, blast deamination tower body 1, gas-liquid fully contacts ammonia is heated, the ammonia of deviating from enters the first whirlwind dehydrater 11 by ammonia outlet 12, screw out unnecessary suspension, suspension is got back in deamination tower body 1 by the first bend pipe 13, ammonia enters people's ammonia absorption tower body 2 by ammonia import 10, solution of zinc sulfate is sent in ammonia absorption tower body 2 by the second charging aperture 4 by circulating pump, through the even sprinkle of water-locator, fully absorb ammonia, residual gas enters the second whirlwind dehydrater 8 by waste gas outlet 7, the unnecessary suspension screwing out is entered in ammonia absorption tower body 1 by the second bend pipe 9, residual gas enters air blast 14 through circulation pipe 17, closed cycle reduces heater 15 energy and scatters and disappears.Can avoid like this waste gas to enter environment, reduce atmosphere pollution.
The first discharging opening 5 of deamination tower body 1 is discharged solution by circulating slot, and circulating pump, enters the interior circular treatment of the first charging aperture 3, and chemically examining qualified is terminal afterwards.
The second discharging opening 6 of ammonia absorption tower body 2 is discharged solution by circulating slot, and circulating pump enters the interior circulation of the second charging aperture 4 and absorbs, and chemically examining qualified is terminal afterwards.
The first bend pipe 13 lower ends are provided with the first blowoff valve 18, and described the second bend pipe 9 lower ends are provided with the second blowoff valve 19.Can be regular the first bend pipe 13 and the second bend pipe 9 be cleared up.
The above embodiment is only preferred embodiment of the present utility model, and is not the exhaustive of the feasible enforcement of the present invention.For persons skilled in the art, any apparent change of under the prerequisite that does not deviate from the utility model principle and spirit, it having been done, within all should being contemplated as falling with claim protection domain of the present utility model.
Claims (5)
1. an Ammonia recovery tower, is characterized in that: it comprises deamination tower body (1), ammonia absorption tower body (2) and air transporting arrangement;
Described deamination tower body (1) comprises the first charging aperture (3), air inlet (16), ammonia outlet (12) and the first discharging opening (5), described the first charging aperture (3) and ammonia outlet (12) are arranged at respectively deamination tower body (1) upper end, and described air inlet (16) and the first discharging opening (5) are arranged at respectively described deamination tower body (1) lower end;
Described ammonia absorption tower body (2) comprises the second charging aperture (4), enters ammonia mouth (10), waste gas outlet (7) and the second discharging opening (6), described the second charging aperture (4) and waste gas outlet (7) are arranged at respectively described ammonia absorption tower (2) upper end, enter ammonia mouth (10) and the second discharging opening (6) and are arranged at respectively described ammonia absorption tower body (2) lower end;
Described air transporting arrangement comprises blower fan (14), heater (15), the first whirlwind dehydrater (11) and the second whirlwind dehydrater (8), and described blower fan (14) is communicated with described air inlet (16) by heater (15); Described the first whirlwind dehydrater (11) is connected with described deamination tower body (1) by ammonia outlet (12), the lower end of described the first whirlwind dehydrater (11) is provided with the first bend pipe (13) being connected with described deamination tower body (1), the top of described the first whirlwind dehydrater (11) with enter ammonia mouth (16) and be connected; Described the second whirlwind dehydrater (8) is connected with described ammonia absorption tower body by waste gas outlet (7), described the second whirlwind dehydrater (8) lower end is provided with the second bend pipe (9) being connected with described ammonia absorption tower body (2), and the top of described the second whirlwind dehydrater (11) is provided with the circulation pipe (17) being connected with blower fan (14).
2. a kind of Ammonia recovery tower according to claim 1, it is characterized in that: described the first charging aperture (3) is calcium sulfate and the import of aqua ammonia mixing suspension, described the first discharging opening (5) is suspension of calcium sulfate outlet, described the second charging aperture (4) is solution of zinc sulfate import, and described the second discharging opening (6) is ammonium sulfate and the outlet of zinc hydroxide suspension.
3. a kind of Ammonia recovery tower according to claim 1, is characterized in that: in described the first bend pipe (13) and the second bend pipe (9), be respectively arranged with water seal.
4. according to a kind of Ammonia recovery tower described in claim 1-3 any one, it is characterized in that: described the first whirlwind dehydrater (11) and the second whirlwind dehydrater (8) are placed on the structure in inner tube for outer tube wall.
5. a kind of Ammonia recovery tower according to claim 4, it is characterized in that: described the first bend pipe (13) lower end is provided with the first blowoff valve (18), described the second bend pipe (9) lower end is provided with the second blowoff valve (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867016.3U CN203663690U (en) | 2013-12-26 | 2013-12-26 | Ammonia recovery tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867016.3U CN203663690U (en) | 2013-12-26 | 2013-12-26 | Ammonia recovery tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203663690U true CN203663690U (en) | 2014-06-25 |
Family
ID=50960025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867016.3U Expired - Fee Related CN203663690U (en) | 2013-12-26 | 2013-12-26 | Ammonia recovery tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203663690U (en) |
-
2013
- 2013-12-26 CN CN201320867016.3U patent/CN203663690U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20161226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |