CN203946979U - Aluminum oxidation waste disposal plant - Google Patents
Aluminum oxidation waste disposal plant Download PDFInfo
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- CN203946979U CN203946979U CN201420331084.2U CN201420331084U CN203946979U CN 203946979 U CN203946979 U CN 203946979U CN 201420331084 U CN201420331084 U CN 201420331084U CN 203946979 U CN203946979 U CN 203946979U
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- oxidation
- washing bath
- alkali
- oil removing
- prewash tank
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Abstract
The utility model relates to a kind of aluminum oxidation waste disposal plant, it comprises the oil removing system, alkali lye alkaline etching system, neutralizing well (8) and the oxidation system that set gradually, it is characterized in that: in described alkali lye alkaline etching system, increase alkali prewash tank (5), in described oxidation system, increase oxidation prewash tank (10), described alkali prewash tank (5) is connected with lye vat (4) by pump, and described oxidation prewash tank (10) is connected by pump oxidation trough (9); Described lye vat (4) and oxidation trough (9) are by pump and aluminium hydroxide recovery system (15).Its sewage load is little and easy, and coproduct hydrogen aluminum oxide, turns waste into wealth.
Description
Technical field
The utility model relates to a kind of aluminum oxidation waste disposal plant, is specially adapted to aluminum oxidation wastewater treatment and the reuse of electroplating industry aluminium section bar processing enterprise.
Background technology
It is large that section bar processing enterprise processes water consumption to aluminium shape surface, produces waste water many, and in waste water, objectionable impurities continues discharge, will contaminate environment if not processed, aggravate domestic more and more nervous Freshwater resources shortage situation.Meanwhile, be accompanied by the taxation of China to blowdown flow rate, also can increase cost and the burden of enterprise.Therefore,, from the viewpoint of social responsibility of enterprises and economic benefit two, it is necessary and necessary carrying out wastewater treatment.
Aluminium shape surface electroplating processes need to be passed through the operations such as oil removing, alkali cleaning, oxidation, at alkali cleaning and oxidation operation, need to use strong acid and highly basic, strong acid and highly basic react with aluminium base respectively, produce a large amount of aluminum ions, aluminum ion enters washing step, discharges together with water for cleaning, brings serious pressure to follow-up sewage disposal.And mixed sewage, foreign matter content complexity, adopts chemical precipitation, filter method, only removes comparatively obvious to the suspended substance in waste water (SS), and low for the clearance of some heavy metals and salt, chemical oxygen demand (COD) (COD), become the source of aluminum profile industry heavily contaminated.
And along with the enhancing of people's environmental consciousness, requirement to sewage disposal is also more and more higher, country has also proposed new requirement to the discharge of sewage, as total nickel≤0.1mg/L, chemical oxygen demand COD≤50mg/L, conventional process using chemical precipitation, filter method is difficult to meet the new requirement of sewage disposal, especially aspect heavy metal, COD and middle reusing rate.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of aluminum oxidation waste disposal plant is provided, and sewage load is little and easy, and can turn waste into wealth.
The purpose of this utility model is achieved in that a kind of aluminum oxidation waste disposal plant, it comprises oil removing system, alkali lye alkaline etching system, neutralizing well and oxidation system, in described alkali lye alkaline etching system, increase alkali prewash tank, in described oxidation system, increase oxidation prewash tank, described alkali prewash tank is connected with lye vat by pump, and described oxidation prewash tank is connected with oxidation trough by pump; Described lye vat is connected with aluminium hydroxide recovery system respectively with oxidation trough water outlet.
Described oil removing system comprises that the degreasing tank, oil removing the first washing bath and oil removing the second washing bath that set gradually adopt adverse current to clean, and the water outlet of described oil removing the second washing bath is connected with the water-in of oil removing the first washing bath;
Described alkali lye alkaline etching system comprises the lye vat, alkali prewash tank, alkali the first washing bath, alkali the second washing bath that set gradually; The water outlet of described alkali the second washing bath is connected with the water-in of alkali the first washing bath;
In described, comprise with oxidation system the neutralizing well, oxidation trough, oxidation prewash tank, oxidation the first washing bath, oxidation the second washing bath, oxidation the 3rd washing bath that set gradually; The water outlet of described oxidation the 3rd washing bath is connected with the water-in of oxidation the second washing bath, and the water outlet of described oxidation the second washing bath is connected with the water-in of oxidation the first washing bath.
Described oil removing the first washing bath, alkali the first washing bath and oxidation the first washing bath water outlet are connected with sewage lagoon respectively, and in this waste water, aluminum ion, sodium ion, sulfate ion content are quite low, are 10% of former normal waste water.
Aluminum oxidation order is process degreasing tank, oil removing the first washing bath, oil removing the second washing bath, lye vat, alkali prewash tank, alkali the first washing bath, alkali the second washing bath, transfer rinse bath, neutralizing well, oxidation trough, oxidation prewash tank successively, is oxidized the first washing bath, oxidation the second washing bath and oxidation the 3rd washing bath, and then sealing of hole;
In degreasing tank and oxidation trough, liquid is sulphur aqueous acid;
Control aluminium ion concentration in lye vat, while reaching 30g/L, alkali lye in lye vat is squeezed into aluminium hydroxide recovery system, squeeze in lye vat by the waste water in alkali prewash tank after taking out quantitative liquid, and supplement the water in alkali the first washing bath in alkali prewash tank;
Control aluminium ion concentration in oxidation trough, while reaching 20g/L, tank liquor in oxidation trough is squeezed into aluminium hydroxide recovery system, take out the waste water being about in oxidation prewash tank after quantitative liquid and introduce in oxidation trough, and to the water that is oxidized supplemental the first washing bath in prewash tank;
The waste water flowing out in lye vat and oxidation trough is high especially containing aluminum ion, sodium ion sulfate ion, and neutralization reaction in aluminium hydroxide recovery system forms aluminum hydroxide precipitation, obtains aluminium hydroxide through solid-liquid separation;
The waste water of oil removing the first washing bath, alkali the first washing bath and oxidation the first washing bath enters the unified processing of sewage lagoon.
Compared with prior art, advantage of the present utility model is:
Adopt aluminum oxidation waste disposal plant of the present utility model, fully realize the comprehensive utilization of water, clean through adverse current, aluminum ion in the waste water that oil removing the first washing bath, alkali the first washing bath and oxidation the first washing bath form, sodium ion, sulfate ion content are quite low, be about 10% of former normal waste water, produce waste water few, and in water, impurity be single, when aftertreatment, only need solid-liquid separation after acid-base neutralisation, process and easily.In addition, the increase of prewash tank, fully holds back aluminum ion, return to lye vat, oxidation trough, concentration content enters aluminium hydroxide recovery system again and generates aluminium hydroxide, the aluminium hydroxide byproduct of precipitate and separate after improving, the former a large amount of aluminium hydroxides that are introduced into mud are recycled again, turned waste into wealth.
Brief description of the drawings
Fig. 1 is the aluminum oxidation waste disposal plant schematic diagram that the utility model relates to.
Wherein: degreasing tank 1, oil removing the first washing bath 2, oil removing the second washing bath 3, lye vat 4, alkali prewash tank 5, alkali the first washing bath 6, alkali the second washing bath 7, neutralizing well 8, oxidation trough 9, oxidation prewash tank 10, oxidation the first washing bath 11, oxidation the second washing bath 12, oxidation the 3rd washing bath 13, sewage lagoon 14, aluminium hydroxide recovery system 15.
Embodiment
Referring to Fig. 1, a kind of aluminum oxidation waste disposal plant that the utility model relates to, it comprise oil removing system, alkali lye alkaline etching system and in and oxidation system;
Described oil removing system comprises the degreasing tank 1, oil removing the first washing bath 2 and oil removing the second washing bath 3 that set gradually; The water outlet of described oil removing the second washing bath 3 is connected with the water-in of oil removing the first washing bath 2;
Described alkali lye alkaline etching system comprises the lye vat 4, alkali prewash tank 5, alkali the first washing bath 6, alkali the second washing bath 7 that set gradually; The water outlet of described alkali the second washing bath 7 is connected with the water-in of alkali the first washing bath 6, the regular suction lye vat 4 of tank liquor of described alkali prewash tank 5;
In described, comprise with oxidation system the neutralizing well 8, oxidation trough 9, oxidation prewash tank 10, oxidation the first washing bath 11, oxidation the second washing bath 12, oxidation the 3rd washing bath 13 that set gradually; The water outlet of described oxidation the 3rd washing bath 13 is connected with the water-in of oxidation the second washing bath 12, and the water outlet of described oxidation the second washing bath 12 is connected with the water-in of oxidation the first washing bath 11; The regular suction oxidation trough 9 of tank liquor of described oxidation prewash tank 10.
Described oil removing the first washing bath 2, alkali the first washing bath 6 and oxidation the first washing bath 11 water outlets are connected with sewage lagoon 14 respectively;
Described lye vat 4 and oxidation trough 9 water outlets pump to respectively aluminium hydroxide recovery system 15.
When use, aluminum oxidation order is process degreasing tank 1, oil removing the first washing bath 2, oil removing the second washing bath 3, lye vat 4, alkali prewash tank 5, alkali the first washing bath 6, alkali the second washing bath 7, neutralizing well 8, oxidation trough 9, oxidation prewash tank 10 successively, is oxidized the first washing bath 11, oxidation the second washing bath 12 and oxidation the 3rd washing bath 13, and then sealing of hole;
In oxidation trough, liquid is sulphur aqueous acid;
Control aluminium ion concentration 30g/L in lye vat 4, regularly the tank liquor in lye vat 4 is squeezed in aluminium hydroxide recovery system 15, and waste water in alkali prewash tank 5 is added in lye vat 4, then alkali the first washing bath 6 waste water are added in alkali prewash tank 5;
Control aluminium ion concentration 20g/L in oxidation trough 9, regularly the tank liquor in oxidation trough 9 is squeezed into aluminium hydroxide recovery system 15, and the waste water in oxidation prewash tank 10 is added in oxidation trough 9, then oxidation the first washing bath 11 waste water are added in oxidation prewash tank 10;
High density high-content waste water neutralization reaction in aluminium hydroxide recovery system 15 of extracting out in lye vat 4 and oxidation trough 9, forms aluminum hydroxide precipitation, obtains aluminium hydroxide through solid-liquid separating equipment;
Oil removing the first washing bath 2, alkali the first washing bath 6 and oxidation the first washing bath 11 containing micro ion (aluminum ion, sodium ion, sulfate ion) waste water through solid-liquid separation, reverse osmosis 60% deionized water reuse.
At lye vat 4 with oxidation trough 9 is rear increases respectively prewash tank, the aluminum ion that strong acid, highly basic and aluminium base surface reaction are generated is fully held back, focus on, obtain aluminium hydroxide by product, alleviate the pressure of follow-up washing, and owing to having micro-aluminum ion, aftertreatment and convenient in follow-up washing.
Claims (3)
1. an aluminum oxidation waste disposal plant, it comprises the oil removing system, alkali lye alkaline etching system, neutralizing well (8) and the oxidation system that set gradually, it is characterized in that: in described alkali lye alkaline etching system, increase alkali prewash tank (5), in described oxidation system, increase oxidation prewash tank (10), described alkali prewash tank (5) is connected with lye vat (4) by pump, and described oxidation prewash tank (10) is connected by pump oxidation trough (9); Described lye vat (4) and oxidation trough (9) are by pump and aluminium hydroxide recovery system (15).
2. aluminum oxidation waste disposal plant according to claim 1, is characterized in that: described oil removing system comprises the degreasing tank (1), oil removing the first washing bath (2) and oil removing the second washing bath (3) that set gradually; The water outlet of described oil removing the second washing bath (3) is connected with the water-in of oil removing the first washing bath (2);
Described alkali lye alkaline etching system comprises the lye vat (4), alkali prewash tank (5), alkali the first washing bath (6), alkali the second washing bath (7) that set gradually; The water outlet of described alkali the second washing bath (7) is connected with the water-in of alkali the first washing bath (6);
Described oxidation system comprises the oxidation trough (9), oxidation prewash tank (10), oxidation the first washing bath (11), oxidation the second washing bath (12), oxidation the 3rd washing bath (13) that set gradually; The water outlet of described oxidation the 3rd washing bath (13) is connected with the water-in of oxidation the second washing bath (12), and the water outlet of described oxidation the second washing bath (12) is connected with the water-in of oxidation the first washing bath (11).
3. aluminum oxidation waste disposal plant according to claim 2, is characterized in that: described oil removing the first washing bath (2), alkali the first washing bath (6) and oxidation the first washing bath (11) water outlet are connected with sewage lagoon (14) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331084.2U CN203946979U (en) | 2014-06-20 | 2014-06-20 | Aluminum oxidation waste disposal plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420331084.2U CN203946979U (en) | 2014-06-20 | 2014-06-20 | Aluminum oxidation waste disposal plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203946979U true CN203946979U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420331084.2U Withdrawn - After Issue CN203946979U (en) | 2014-06-20 | 2014-06-20 | Aluminum oxidation waste disposal plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045186A (en) * | 2014-06-20 | 2014-09-17 | 江阴苏铝铝业有限公司 | Aluminum oxidation sewage treatment device and aluminum oxidation sewage treatment process |
-
2014
- 2014-06-20 CN CN201420331084.2U patent/CN203946979U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045186A (en) * | 2014-06-20 | 2014-09-17 | 江阴苏铝铝业有限公司 | Aluminum oxidation sewage treatment device and aluminum oxidation sewage treatment process |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141119 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |