CN107758766A - Recycling can for bauxite sewage - Google Patents
Recycling can for bauxite sewage Download PDFInfo
- Publication number
- CN107758766A CN107758766A CN201711177135.5A CN201711177135A CN107758766A CN 107758766 A CN107758766 A CN 107758766A CN 201711177135 A CN201711177135 A CN 201711177135A CN 107758766 A CN107758766 A CN 107758766A
- Authority
- CN
- China
- Prior art keywords
- plate
- discharging opening
- tank body
- sewage
- recycling
- 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.)
- Pending
Links
- 238000004064 recycling Methods 0.000 title claims abstract description 20
- 239000010865 sewage Substances 0.000 title claims abstract description 20
- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 35
- 238000002425 crystallisation Methods 0.000 claims abstract description 27
- 230000008025 crystallization Effects 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000006228 supernatant Substances 0.000 abstract description 5
- 239000000284 extract Substances 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 239000010881 fly ash Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000010883 coal ash Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004131 Bayer process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229910001648 diaspore Inorganic materials 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D2009/0086—Processes or apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Removal Of Specific Substances (AREA)
Abstract
This application discloses a kind of recycling can for bauxite sewage, feed tube and discharging opening including tank body, on tank body, agitator is installed in tank body, the tank body includes bottom plate, capping and connecting bottom board and the leg of capping, the feed tube is provided with drain pipe positioned at the top of capping on the leg of the side relative with feed tube；The bottom plate is the elliptical flat-plate being obliquely installed, and the shape of the elliptical flat-plate matches with leg, and the discharging opening is located in the side wall for the minimum point that leg contacts with the elliptical flat-plate, and the outside of discharging opening is provided with the sealing door of discharging opening sealed set.The present invention first extracts supernatant liquor out, crystallization could be discharged, by the setting of inclined elliptical flat-plate and side discharging opening, reduce the frictional force of crystallization and the dead angle of tank body, make the cleaning of crystallization convenient and swift.
Description
Technical field
The present invention relates to waste water or technical field of sewage, and in particular to a kind of recycling can for bauxite sewage.
Background technology
China's bauxite resource enriches, and reserves occupy the 4th, the world, are mainly distributed on Shanxi, Guizhou, Henan, Guangxi, Sichuan
With the ground such as Yunnan.The average grade of bauxite is：Al2O361.99%th, SiO210.40%, mainly based on diaspore.
The alumina producer of the country more than 95% uses Bayer process production technology at present.Chemical formula is：Al2O3+ (1 or 3) H2O+2NaOH+aq
→2NaAl(OH)4+ aq, the core of Bayer process production technology is the dissolution process of bauxite ore pulp, due to ore alumina silica ratio compared with
It is low, thus cause China's process for making alumina complicated, production cost is high, while the aluminium spent acid contained in sewage is excessive, directly
Discharge not only results in environmental pollution, while will also result in the waste of resource, it is therefore desirable to the aluminium of the inside is extracted, due to
Contain higher Al in flyash2O3, content typically can reach 20%~40%, reaches as high as more than 50%, can replace bauxite
As a kind of good alumina resource, therefore the technology of extraction aluminum oxide is received more and more attention and ground from flyash
Study carefully.The method of China's treated coal ash mainly has the acid-hatching of young eggs, alkali fusion.Wherein the acid-hatching of young eggs is more flexible relative to alkali fusion, and two
Secondary residue is less, and easily realizes that silicon and aluminium in flyash, iron are completely separated, and turns into the heat that flyash extracts aluminum oxide research
Point field.But a large amount of liquid containing aluminic acid are produced in acidity extraction alumina process, if directly discharge not only results in resource
Waste, very big destruction can be also caused to environment.
The recovery profit of a kind of flyash acidity extraction aluminum oxide technology sewage as disclosed in Publication No. CN103936048B
With method, it is using sewage caused by the steel slag treated coal ash acidity extraction aluminum oxide discharged in steelmaking process, reclaims it
Middle aluminum oxide and iron oxide, and acid solution is consumed, the combined recovery for belonging to spent acid containing aluminium and solid waste utilizes technical field.
Steel slag is added in sewage by this method with certain solid-liquid ratio first；Operation temperature is 50-100 DEG C, reaction time 1-
3h；Caused hydrogen recovery in reaction, for providing thermal source for reaction；Separation of solid and liquid, joint removal of impurities, crystallization, calcining, obtain oxygen
Change aluminium and ferric oxide solid；The filter residue of separation of solid and liquid can be doped in steel slag, doping ratio 1-10:1 (steel slag：Filter
Slag), realization recycles.The present invention utilizes the steel slag treated coal ash acidity extraction aluminum oxide technology discharged in steelmaking process
Sewage, the treatment of wastes with processes of wastes against one another, realize the combined governance and resource reclaim of liquid solid refuse.
Need to carry out crystallisation step when separation of solid and liquid, crystallization needs to use crystallizing tank, the solid after general crystallization
Material is from the bottom discharge of crystallizing tank, because the bottom of crystallizing tank is conical lower section, and be located at the discharging opening of bottom nor
It is very big, some dead angles for being difficult to clear up are there is, are difficult to discharge after causing crystallization.
The content of the invention
It is difficult to solve the discharging of prior art crystallizing tank the invention is intended to provide a kind of recycling can for bauxite sewage
The problem of.
A kind of recycling can for bauxite sewage in this programme, including tank body, the feed tube on tank body and go out
Material mouth, is provided with agitator in tank body, and the tank body includes bottom plate, capping and connecting bottom board and the leg of capping, it is described enter
Liquid pipe is positioned at the top of capping, with being provided with drain pipe, the mouth of pipe direction of the drain pipe on the leg of feed tube opposite side
Diagonally downward；The bottom plate is the elliptical flat-plate being obliquely installed, and the shape of the elliptical flat-plate matches with leg, the discharging opening
In the side wall of the minimum point contacted positioned at leg with the elliptical flat-plate, the outside of discharging opening is provided with discharging opening sealed set
Sealing door.
The operation principle of the present invention：Concentrate after concentration is sent into recycling can, fed from feed tube, in stirring motor
In the presence of, agitator starts, and the concentrate in recycling can is stirred, mixing speed is small, stirs, and makes crystalline solid equal
It is even consistent, reduce molten brilliant and viscous brilliant generation；After crystallizing a period of time, stop stirring, crystallization sedimentation, in the presence of vavuum pump
Supernatant liquor is extracted out and enters the storage of vacuum recycling can；Crystallization is adhered on elliptical flat-plate and leg, and elliptical flat-plate sets for inclination
Put and matched with leg, discharging opening is located in the side wall for the minimum point that leg contacts with elliptical flat-plate；During discharging, sealing is opened
Door, crystallization is outwards dug using instrument, because bottom plate is swash plate, in the presence of gravity and the holding power tilted upward, and crystallization
Friction diminish, can very easily will crystallization take out, discharging opening again elliptical flat-plate minimum point, in the absence of dead angle, make crystallization
Discharge more convenient and quicker.
Beneficial effects of the present invention：, could be to crystallization because the crystallization content of concentrate is small, it is necessary to first extract supernatant liquor out
Discharged, by the setting of inclined elliptical flat-plate and side discharging opening, reduce the frictional force of crystallization and the dead angle of tank body,
Make the discharging of crystallization convenient and swift.
Further, the angle of inclination of the elliptical flat-plate is 8~15 °.While ensureing to discharge effect, difficult processing is reduced
Degree, more than 15 °, difficulty of processing becomes big, and less than 8 °, discharging effect is small, and therefore, 8~15 ° are optimum angle value.
Further, the sealing door is hinged with discharging opening, and the inner side of sealing door is provided with sealing strip.
Further, the sealing door and discharging opening mortise-tenon joint, the inner side of sealing door is provided with sealing strip.
Be hinged or mortise-tenon joint all easily sealing doors opening and closing operation, makes sealing effectiveness more by sealing strip
It is good, avoid the leakage of concentrate.
Further, the mouth of pipe of the drain pipe be provided be used for prevent crystallization through filter screen.Make the separating effect of solid-liquid more
It is good, the concentration of aluminic acid liquid in supernatant liquor is reduced, ensures wastewater treatment efficiency and recovering effect.
Further, the top of the elliptical flat-plate is provided with telescopic ring-type scraper plate.For the ease of to crystallization material discharging,
Ring-type scraper plate is arranged to it is telescopic, hold ring-type scraper plate side, repeatedly scrape back and forth, you can by the knot on elliptical flat-plate
Crystalline substance material scrapes.
Brief description of the drawings
Fig. 1 is the structural representation for the recycling can that the present invention is used for bauxite sewage；
Fig. 2 is Fig. 1 left view.
Embodiment
Below by embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Agitator 1, feed tube 2, capping 3, drain pipe 4, leg 5, ellipse
Plate 6, discharging opening 7, sealing door 8, footing 9.
Embodiment 1：As shown in figure 1, a kind of recycling can for bauxite sewage, including tank body, entering on tank body
Liquid pipe 2 and discharging opening 7, agitator 1 is installed in tank body, the bottom of tank body is provided with footing 9, and tank body includes elliptical flat-plate 6, capping
3 and connection elliptical flat-plate 6 and capping 3 leg 5, feed tube 2 positioned at capping 3 top, in the side relative with feed tube 2
Leg 5 be provided with drain pipe 4；The shape of the elliptical flat-plate 6 matches with leg 5, and the discharging opening 7 is located at leg 5 and institute
In the side wall for stating the minimum point of the contact of elliptical flat-plate 6, the external articulation of discharging opening 7 has the sealing door of the sealed set of discharging opening 7
8, the inner side of sealing door 8 is provided with sealing strip；The mouth of pipe of drain pipe 4 be provided be used for prevent crystallization through filter screen.
The angle of inclination of elliptical flat-plate 6 is 8 °.
Concentrate after concentration is sent into recycling can, fed from feed tube 2, in the presence of stirring motor, agitator 1
Start, the concentrate in recycling can is stirred, mixing speed is small, stirs, and makes crystalline solid uniformity, reduces molten crystalline substance
With viscous brilliant generation；After crystallizing a period of time, stop stirring, crystallization sedimentation, extract supernatant liquor out in the presence of vavuum pump
Stored into vacuum recycling can；Crystallization be adhered on elliptical flat-plate 6 and leg 5, elliptical flat-plate 6 for be obliquely installed and with leg 5
Matching, discharging opening 7 are located in the side wall for the minimum point that leg 5 contacts with elliptical flat-plate 6；During discharging, sealing door 8 is opened, is used
Instrument outwards digs crystallization, and because bottom plate is swash plate, in the presence of gravity and the holding power tilted upward, the friction of crystallization becomes
It is small, it can will easily crystallize very much and take out discharging opening 7 again in the minimum point of elliptical flat-plate 6, in the absence of dead angle, make crystallization discharging more square
Just it is quick.
The difference of embodiment 2 and embodiment 1 is：The angle of inclination of elliptical flat-plate 6 is 15 °, sealing door 8 and discharging opening 7
Mortise-tenon joint.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description., without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, and these are implemented all without the influence present invention
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as embodiment can be used for the content for explaining claim.
Claims (6)
1. for the recycling can of bauxite sewage, including tank body, feed tube and discharging opening on tank body, it is provided with tank body
Agitator, it is characterised in that：The tank body includes bottom plate, capping and connecting bottom board and the leg of capping, the feed tube position
In the top of capping, with being provided with drain pipe on the leg of feed tube opposite side, the mouth of pipe direction of the drain pipe is tilted towards
Under；The bottom plate is the elliptical flat-plate being obliquely installed, and the shape of the elliptical flat-plate matches with leg, and the discharging opening, which is located at, to be enclosed
In the side wall for the minimum point that wall contacts with the elliptical flat-plate, the outside of discharging opening is provided with the sealing of discharging opening sealed set
Door.
2. the recycling can according to claim 1 for bauxite sewage, it is characterised in that：The inclination of the elliptical flat-plate
Angle is 8~15 °.
3. the recycling can according to claim 2 for bauxite sewage, it is characterised in that：The sealing door and discharging opening
Be hinged, the inner side of sealing door is provided with sealing strip.
4. the recycling can according to claim 2 for bauxite sewage, it is characterised in that：The sealing door and discharging opening
Mortise-tenon joint, the inner side of sealing door are provided with sealing strip.
5. the recycling can for bauxite sewage according to claim 3 or 4, it is characterised in that：The pipe of the drain pipe
Mouthful be provided be used for prevent crystallization through filter screen.
6. the recycling can according to claim 5 for bauxite sewage, it is characterised in that：The top of the elliptical flat-plate
Provided with telescopic ring-type scraper plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177135.5A CN107758766A (en) | 2017-11-22 | 2017-11-22 | Recycling can for bauxite sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177135.5A CN107758766A (en) | 2017-11-22 | 2017-11-22 | Recycling can for bauxite sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107758766A true CN107758766A (en) | 2018-03-06 |
Family
ID=61278551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711177135.5A Pending CN107758766A (en) | 2017-11-22 | 2017-11-22 | Recycling can for bauxite sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107758766A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202933510U (en) * | 2012-11-20 | 2013-05-15 | 嵊州市博爱机械设计工作室 | Crystallizing tank |
| CN204767571U (en) * | 2015-06-04 | 2015-11-18 | 江阴市江中设备制造有限公司 | Crystallizer is used in sugaring |
| CN205925501U (en) * | 2016-06-20 | 2017-02-08 | 朱建材 | High -efficient crystallization agitator tank |
| CN207699218U (en) * | 2017-11-22 | 2018-08-07 | 遵义汇恒环保科技有限公司 | Recycling can for bauxite sewage |
-
2017
- 2017-11-22 CN CN201711177135.5A patent/CN107758766A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202933510U (en) * | 2012-11-20 | 2013-05-15 | 嵊州市博爱机械设计工作室 | Crystallizing tank |
| CN204767571U (en) * | 2015-06-04 | 2015-11-18 | 江阴市江中设备制造有限公司 | Crystallizer is used in sugaring |
| CN205925501U (en) * | 2016-06-20 | 2017-02-08 | 朱建材 | High -efficient crystallization agitator tank |
| CN207699218U (en) * | 2017-11-22 | 2018-08-07 | 遵义汇恒环保科技有限公司 | Recycling can for bauxite sewage |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180306 |
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