CN107175252B - The processing method and its device and product of a kind of aluminium waste water slag and application - Google Patents
The processing method and its device and product of a kind of aluminium waste water slag and application Download PDFInfo
- Publication number
- CN107175252B CN107175252B CN201710423702.4A CN201710423702A CN107175252B CN 107175252 B CN107175252 B CN 107175252B CN 201710423702 A CN201710423702 A CN 201710423702A CN 107175252 B CN107175252 B CN 107175252B
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- Prior art keywords
- high speed
- waste water
- water slag
- dust
- microwave
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Abstract
The invention discloses a kind of processing methods of aluminium waste water slag, and this method is successively the following steps are included: preliminarily dried, stacking, crushing, microwave drying, high speed dispersion and collection.Invention also provides the processing units for implementing this method, including stacking box, pulverizer, conveyer belt, microwave box, high speed disperser, cyclone separator, rewinding case and dust-precipitator；Include powder and superfine powder using the product obtained after method or apparatus processing of the invention, can be applied in the production preparation of thermal insulation material.Method energy consumption provided by the invention is small, in the case where low energy consumption, low raw materials requirement, low emission, so that it may which aluminium waste water slag substep drying is broken into the powder that regularity is preferable, quality is slim and graceful.
Description
Technical field
The present invention relates to three industrial wastes processing technology field more particularly to a kind of processing methods and its device of aluminium waste water slag
And product and application.
Background technique
Currently, aluminium industry can generate waste water in production process, waste water will form a large amount of waste water after alkaline chemical precipitation
Slag.This kind of waste water slag has very big harm to human body because a large amount of aluminium ion is contained in the inside, so country is defined as it to endanger
Dangerous waste.
The common processing method of aluminum current oxidized waste water slag makes landfill disposal.But also there are many enterprises that can take and factory is discharged steathily
Mode, can greatly pollute environment in this way.The moisture content that the difficulty in treatment of waste water slag also resides in it is very high, it is recycled benefit
With needing to be dried.Drying process can also expend a large amount of energy, so that economic feasibility is not high.
Waste water slag also contains a large amount of impurity other than containing aluminium hydroxide, and the value for recycling it is limited, answers
Range is also limited.
Summary of the invention
For overcome the deficiencies in the prior art, the aluminium that one of the objects of the present invention is to provide a kind of energy consumptions is small, pollution is small
Waste water slag processing method.
The second object of the present invention is to provide a kind of device for implementing the above method.
The first purpose of this invention is realized by following technological means:
A kind of processing method of aluminium waste water slag characterized by comprising
Initial drying step: being 5-30% by waste water slag preliminarily dried to water content；
It stacks step: the waste water slag after preliminarily dried is stacked into curing 6-24h；
Pulverising step: waste water slag after stacking is crushed, and crosses 20-30 mesh；
Microwave drying step: by smashed waste water slag through microwave drying to water content≤0.5%；
High speed dispersion step: the waste water slag after microwave drying is crushed through high speed dispersion；
Collection step: the powder after high speed dispersion is collected.
Further, dry using rotary furnace in initial drying step.
Further, it stacks in step, lid impermeable layer is stacked.
Second object of the present invention adopts the following technical scheme that implementation:
A kind of processing device of aluminium waste water slag, for completing above-mentioned stacking step, pulverising step, microwave drying step
Suddenly, high speed dispersion step and collection step, which is characterized in that the device include stacking box, pulverizer, conveyer belt, microwave box,
High speed disperser, cyclone separator, rewinding case and dust-precipitator；Stacking box upper end is equipped with plastic jacket, lower end is equipped with convertible bottom plate；
Conveyer belt is used to waste water slag being sent to the case thorax that pulverizer is resent to microwave box from stacking box, and microwave box is equipped on case thorax
Suction opening；The discharge end of microwave box is connected with the feed inlet of high speed disperser, high speed disperser, cyclone separator and dust-precipitator
It is sequentially communicated；The bottom end of cyclone separator is equipped with discharge port and valve, and discharge port is equipped with sieve, and rewinding case is equipped with and discharge port phase
Corresponding rewinding mouth.
Further, microwave box is equipped with air inlet on case thorax.
Further, turbine type high speed dispersion knife leaf, the feed inlet and high speed of high speed disperser are equipped in high speed disperser
Disperse knife leaf in tangential.
Further, the discharge port of cyclone separator is equipped with Dust-proof bag, and Dust-proof bag protrudes into the rewinding mouth of rewinding case.
Further, dust-precipitator is connected with the top of cyclone separator, and dust-precipitator is bagroom.
The present invention also provides the product that the above method or device obtain, which is the powder that collection step obtains.This hair
The bright application for also providing the product on heat-barrier material.
Compared with prior art, the beneficial effects of the present invention are:
Method and device provided by the invention, in the case where low energy consumption, low raw materials requirement, low emission, so that it may by aluminium
Waste water slag substep drying breaks into powdery, and isolated powder can be applied to thermal insulation material, have more considerable economic benefit.
Meet economy, environmental friendly principle.The product obtained by method of the invention can be applied to the preparation of thermal insulation material.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
Fig. 2 is processing unit schematic diagram of the invention.
In figure, each appended drawing reference: 1, stacking box；11, plastic jacket；12, convertible bottom plate；2, pulverizer；3, conveyer belt；4,
Microwave box；41, air inlet；42, suction opening；5, high speed disperser；51, feed hopper；52, air inlet；53, high speed dispersion knife leaf；
6, cyclone separator；61, discharge port；62, valve；63, Dust-proof bag；7, rewinding case；71, rewinding mouth；72, rewinding cover；8, it gathers dust
Device.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
The present invention provides a kind of processing method of aluminium waste water slag, and process flow chart is as shown in Figure 1, comprising:
Initial drying step: being 5-30% by waste water slag preliminarily dried to water content；
In the step, conventional method can be used, rapidly to waste water slag carry out preliminarily dried, drying mode include but
It is not limited to dry, heated-air drying or rotary furnace drying etc., but considers cost and duration, in such a way that rotary furnace is dry the most
Appropriately；More preferably, drying to water content is 25-30%；
It stacks step: the waste water slag after preliminarily dried is stacked into curing 6-24h；
It in the step, is cured by stacking, moisture can be made to be uniformly dispersed in waste water slag particulate material, when stacking, used
Normal pressure stacking, or further, in order to prevent waste water slag particulate material absorb water, can be covered on the waste water solid impurity particle of stacking one layer it is impermeable
Moisture film；
Pulverising step: waste water slag after stacking is crushed, and crosses 20-30 mesh；
In the step, adoptable grinding device includes but is not limited to that jaw crusher, hammer mill, hammer slice type are broken
Machine, double-roll crusher, impact breaker and cone crusher.Wherein, moisture of the waste water slag in the present invention in 5-30%
Hardness in content range selects hammer mill more appropriate；
Microwave drying: by smashed waste water slag through microwave drying to water content≤0.5%；
In the step, microwave drying is carried out to smashed waste water slag using industrial microwave drying box, in order to improve microwave
Drying process can assist drying using hot wind, that is, to the case thorax while air inlet and exhausting of microwave box, air inlet and exhausting direction
With the direction of transfer of conveyer belt it is parallel；
High speed dispersion step: the waste water slag after microwave drying is crushed through high speed dispersion；
In the step, dispersed using turbine type high speed disperser, it is high-efficient；
Collection step: the powder after high speed dispersion is collected；
In the step, according to Gravity Separation principle, bottom carries out rewinding using rewinding case, and top is received using cloth bag
Material；Powder is separated.
The present invention also provides a kind of processing unit of aluminium waste water slag for implementing the above method simultaneously, as shown in Fig. 2, including heap
Pile case 1, pulverizer 2, conveyer belt 3, microwave box 4, high speed disperser 5, cyclone separator 6, rewinding case 7 and dust-precipitator 8；Stacking box
1 upper end is equipped with plastic jacket 11, lower end is equipped with convertible bottom plate 12；Conveyer belt 3 is used to waste water slag being sent to crushing from stacking box 1
Machine 2 is resent to the case thorax of microwave box 4, and microwave box 4 is equipped with suction opening 42 on case thorax；The discharge end and high speed point of microwave box 4
The feed inlet for dissipating device 5 is connected, and high speed disperser 5, cyclone separator 6 and dust-precipitator 8 are sequentially communicated；The bottom of cyclone separator 6
End is equipped with discharge port 61 and valve 62, and discharge port 61 is equipped with sieve, and rewinding case 7 is equipped with rewinding mouth corresponding with discharge port 61
71。
In the present apparatus, material carries out stacking box 1, top cover plastic jacket 11 after preliminarily dried, and bottom plate sealing carries out heap
Put curing；Waste water slag after curing enters pulverizer 2 and is crushed, and microwave box 4 is sent to after crushing and is dried, high speed dispersion
Device 5 is eddy current type, and the bottom end of high speed disperser 5 is equipped with air inlet 52, and top bottom is logical equipped with what is be connected with 6 upper end of cyclone separator
Road, it is interior to be equipped with high speed dispersion knife leaf 53；Material after microwave drying is tangentially to enter high speed disperser 5, in high shear
It is lower pulverized；The bottom end valve 62 of cyclone separator 6 controls load, and the net diameter of sieve is preferably 200 mesh, i.e., in cyclonic separation
It collects to obtain the first product, i.e. 200 mesh powder below in the bottom end of device 6；The top of cyclone separator 6 is equipped with and 8 phase of dust-precipitator
The channel of connection, dust-precipitator 8 are bagroom 8, i.e., obtain the second product, i.e. superfine powder by the collection of bagroom 8.
In the present apparatus, in order to improve the drying efficiency of microwave box 4, by way of simultaneously to case thorax air inlet with exhausting, take
It is come out with a large amount of hot water vapor, i.e., microwave box 4 is equipped with air inlet 41, the line and biography of air inlet 41 and suction opening 42 on case thorax
Send the direction of transfer of band 3 parallel.
In the present apparatus, high speed disperser and microwave box material transmission mode can be further as shown in Fig. 2, high speeds point
It dissipates device and is equipped with feed hopper 51, i.e., the waste water slag sent out from microwave box passes through tangent line by feed hopper 51 again into feed hopper 51
Direction carries out high speed disperser；
In the present apparatus, in order to reduce fugitive dust, Dust-proof bag further can be equipped in the discharge port 61 of cyclone separator 6
63, Dust-proof bag 63 protrudes into the rewinding mouth 71 of rewinding case 7, can further, and rewinding case 7 extends upward on the week edge of rewinding mouth
The rewinding cover 72 to match with Dust-proof bag.
The product handled by means of the present invention with device includes the first product and the second product, can be further
Ground is applied to the preparation of thermal insulation material.Its partial size has preferable regularity, and production thermal insulation material has preferable form controllable
Property；And first product and the second product moisture content it is low, quality is fluffy, and the thermal insulation material quality of production is slimmer and more graceful.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (5)
1. a kind of processing device of aluminium waste water slag, for completing following steps:
Initial drying step: it is 25-30% that waste water slag, which is used rotary furnace preliminarily dried to water content,；
Stack step: lid impermeable layer, which is stacked, stacks curing 6-24h for the waste water slag after preliminarily dried；
Pulverising step: waste water slag after stacking is crushed, and crosses 20-30 mesh；
Microwave drying step: by smashed waste water slag through microwave drying to water content≤0.5%；
High speed dispersion step: the waste water slag after microwave drying is crushed through high speed dispersion；
Collection step: the powder after high speed dispersion is collected；
It is characterized in that, the device includes stacking box, pulverizer, conveyer belt, microwave box, high speed disperser, cyclone separator, receipts
Hopper and dust-precipitator；The stacking box upper end is equipped with plastic jacket, lower end is equipped with convertible bottom plate；The conveyer belt is used for waste water
Slag is sent to the case thorax that the pulverizer is resent to the microwave box from the stacking box, and the microwave box is equipped on case thorax
Suction opening；The discharge end of microwave box is connected with the feed inlet of the high speed disperser, the high speed disperser, cyclone separator
It is sequentially communicated with dust-precipitator；The bottom end of the cyclone separator is equipped with discharge port and valve, and the discharge port is equipped with sieve, described
Rewinding case is equipped with rewinding mouth corresponding with the discharge port.
2. processing device as described in claim 1, which is characterized in that the microwave box is equipped with air inlet on case thorax.
3. processing device as described in claim 1, which is characterized in that be equipped with turbine type high speed point in the high speed disperser
Knife leaf, the feed inlet of the high speed disperser and the high speed dispersion knife leaf are dissipated in tangential.
4. processing device as described in claim 1, which is characterized in that the discharge port of the cyclone separator is equipped with dust-proof
Bag, the Dust-proof bag protrude into the rewinding mouth of the rewinding case.
5. processing device as described in claim 1, which is characterized in that the top of the dust-precipitator and the cyclone separator
It is connected, the dust-precipitator is bagroom.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423702.4A CN107175252B (en) | 2017-06-07 | 2017-06-07 | The processing method and its device and product of a kind of aluminium waste water slag and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423702.4A CN107175252B (en) | 2017-06-07 | 2017-06-07 | The processing method and its device and product of a kind of aluminium waste water slag and application |
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| Publication Number | Publication Date |
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| CN107175252A CN107175252A (en) | 2017-09-19 |
| CN107175252B true CN107175252B (en) | 2019-06-25 |
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| CN201710423702.4A Active CN107175252B (en) | 2017-06-07 | 2017-06-07 | The processing method and its device and product of a kind of aluminium waste water slag and application |
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| CN112676299A (en) * | 2020-11-17 | 2021-04-20 | 王煜雅 | Electrolytic aluminum waste cathode treatment and recovery system |
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|---|---|---|---|---|
| US5783142A (en) * | 1995-05-08 | 1998-07-21 | Plasma Processing Corporation | Kiln system for treatment of reactive fines |
| CN101462756A (en) * | 2009-01-16 | 2009-06-24 | 湖南中大冶金设计有限公司 | Dry sintering apparatus for aluminum oxide clinker |
| CN102180496A (en) * | 2011-03-03 | 2011-09-14 | 东北大学设计研究院（有限公司） | Device for producing alumina clinker by semi-dry process |
| CN201981106U (en) * | 2010-10-29 | 2011-09-21 | 华南理工大学 | Complete set of equipment for step-by-step sludge drying through hot tail gas of boiler |
| CN103483880A (en) * | 2013-10-09 | 2014-01-01 | 张釜维 | Production method of red mud filler |
| CN106045487A (en) * | 2016-06-07 | 2016-10-26 | 贵州大学 | Preparation method of Al2O3 and SiO2 porous ceramic membrane support |
-
2017
- 2017-06-07 CN CN201710423702.4A patent/CN107175252B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783142A (en) * | 1995-05-08 | 1998-07-21 | Plasma Processing Corporation | Kiln system for treatment of reactive fines |
| CN101462756A (en) * | 2009-01-16 | 2009-06-24 | 湖南中大冶金设计有限公司 | Dry sintering apparatus for aluminum oxide clinker |
| CN201981106U (en) * | 2010-10-29 | 2011-09-21 | 华南理工大学 | Complete set of equipment for step-by-step sludge drying through hot tail gas of boiler |
| CN102180496A (en) * | 2011-03-03 | 2011-09-14 | 东北大学设计研究院（有限公司） | Device for producing alumina clinker by semi-dry process |
| CN103483880A (en) * | 2013-10-09 | 2014-01-01 | 张釜维 | Production method of red mud filler |
| CN106045487A (en) * | 2016-06-07 | 2016-10-26 | 贵州大学 | Preparation method of Al2O3 and SiO2 porous ceramic membrane support |
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