CN208471557U - The device of inertia aluminium ash processing in a kind of aluminium ash treatment process - Google Patents
The device of inertia aluminium ash processing in a kind of aluminium ash treatment process Download PDFInfo
- Publication number
- CN208471557U CN208471557U CN201821060855.3U CN201821060855U CN208471557U CN 208471557 U CN208471557 U CN 208471557U CN 201821060855 U CN201821060855 U CN 201821060855U CN 208471557 U CN208471557 U CN 208471557U
- Authority
- CN
- China
- Prior art keywords
- aluminium ash
- baffle
- cylinder
- treatment process
- inertia
- 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.)
- Active
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses the devices that inertia aluminium ash in a kind of aluminium ash treatment process is handled, including sequentially connected rotary kiln, cooler, grinding machine and dissolution slot, wherein, the rotary kiln is also connected with burner and evacuation port, and combustion gas entrance is provided on the burner and helps fuel gas inlet.The device of the application can safely and effectively handle inertia aluminium ash in aluminium ash, and milk of lime supplying and F‑Reaction generates CaF2Element and elimination F are endangered to remove‑It is endangered into flue gas bring, while being capable of handling Bayer process richness product organic matter.The setting of rotary kiln can promote the material of different-grain diameter uniformly to mix, and improve the efficiency and effect of calcining.
Description
Technical field
The utility model relates to aluminum i ndustry technical fields, and in particular to inertia aluminium ash processing in a kind of aluminium ash treatment process
Device.
Background technique
The production process of aluminium is along with the generation of pernicious gas and solid waste, and till now, aluminium is electric for world's aluminum electrolyzation technology
More satisfactory control has been obtained in the pernicious gas that solution production generates, but hazardous solid waste residue aluminium ash cannot have for a long time
Effect processing, for China's aluminium yield up to 35,000,000 tons/year, the solid hazardous slag charge aluminium ash generated every year threatens always our life
Dis environment, therefore, it is necessary for taking measures to carry out administering to it.And aluminium ash is mainly by metallic aluminium simple substance, α-Al2O3, nitrogen
Change the mixing composition such as aluminium, silicon and silica, NaCl, fluoride, wherein the content of Al element is up to 40 ~ 50%, while also containing F,
The elements such as Cl, Na, Si are that have the larger solid waste for recycling value.
Organic matter (sodium carbonate, sodium oxalate) constantly circulation accumulation in circulating mother liquor, influences in decomposer in Bayer process
There are a large amount of foams, occupy a large amount of volumes, the reduction of decomposer volume reduces aluminium oxide yield；Organic matter in decomposer
It increases significantly, a large amount of tiny nucleus will be generated, refine aluminum hydroxide grain seriously, granularity is difficult to control, and influences to roast oxygen
Change the quality of aluminium product, this type organic relative cost of conventional process is higher and efficiency and effect are obvious not to the utmost.
Utility model content
The purpose of this utility model is to provide the devices that inertia aluminium ash in a kind of aluminium ash treatment process is handled, and solve production
It a large amount of solid waste is led to the problem of during aluminium must but arrive and be effectively treated.
In order to solve the above technical problems, the utility model uses following technical scheme:
The device of inertia aluminium ash processing in a kind of aluminium ash treatment process, including sequentially connected rotary kiln, cooler, grinding machine
With dissolution slot, wherein
The rotary kiln is also connected with burner and evacuation port, and combustion gas entrance and combustion-supporting gas are provided on the burner
Entrance.
Preferably, being connected with centrifugal blower on the cooler.
Preferably, the cooler and grinding machine junction are provided with bagroom.
Sinter leaching is carried out using rotary kiln, raw slurry spray gun is prepared and is sprayed into kiln from rotary kiln, using natural
Gas carries out clinkersintering reaction as fuel at 1000 DEG C, the alkali in α-aluminium oxide and raw slurry, sodium carbonate in aluminium ash,
Sodium oxalate reaction generates sodium aluminate clinker.The clinker sintered after cooling, is sent into Clinker digestion system.Wherein reaction equation are as follows:
It is sintered main reaction
Al2O3+NaOH+3H2O → NaAl(OH)4+H2O↑
Al2O3+Na2CO3+3H2O → NaAl(OH)4+CO2↑
Al2O3+NaC2O4+3H2O → NaAl(OH)4+CO2↑
It is sintered side reaction:
SiO2 +Al2O3+NaOH → Na2O .Al2O3 .X SiO2 .nH2O
Fe2O3+S Na2CO3 + NaOH → Na2O . Fe2O3 +CO2↑
MgO/ CaO+ SiO2 →MgO/ CaO . SiO2
Clinker digestion reaction principle:
Na2O .Al2O3(Solid)+3H2O→ NaAl(OH)4(liquid)
MgO/ CaO . Fe2O3+3H2O+ NaAl(OH)4→ CaO .Al2O3 .X SiO2 .(6-x) H2O+NaOH
The devices such as rotary kiln, cooler, grinding machine are set according to the technological requirements, and raw slurry spray gun is sprayed into from rotary kiln end
In kiln, using natural gas as fuel, clinkersintering reaction is carried out at 1000 DEG C, the clinker sintered is cooled to through cooler
After 120 DEG C, it is sent into ball mill with conveyer, supplying alumina evaporation mother liquor is sintered, and can gradually consume alumina producing
The organic matter of system achievees the purpose that exclude organic matter in alumina producing system.It is taken out of by evaporation mother liquor and evaporation salt discharge
Organic matter is converted to CO after sintering2Gas after electric precipitation, is discharged into atmosphere into newly-built chimney with kiln exit gas.
Add the primary wash liquor that Bayer process system is sent simultaneously in ball mill, carry out Clinker digestion, the slurries after dissolution into
Enter to dissolve out slot, the dissolution fluid dissolved out with one section mix, is then pumped to the high pressure digestion pit of Bayer process system with dissolving out, and visits
Ear genealogy of law system stripping slurry interflow.Using this technique, the aluminium in aluminium ash was not only recycled but also the heap of organic matter by Bayer process is effectively treated
Product is, it can be achieved that the target that aluminium grey efficient, economy, Environmental-protection comprehensive utilize.
Preferably, the rotary kiln includes cylinder and setting in the intracorporal coarse fodder baffle of cylinder and fines baffle, it is described
Coarse fodder baffle and fines baffle are arranged along the axis direction of cylinder；
For the fines baffle plate setting on cylinder inboard wall, coarse fodder baffle plate setting leans on the side of axial ray, institute in fines baffle
It states coarse fodder baffle and fines baffle is staggered setting and circumferentially arranged there are two more than.
In rotary kiln rotation process, short grained fines can float on little particle close to cylinder inboard wall, the coarse fodder of bulky grain
The separation that large granular materials and small particles material are caused above fines, since large granular materials porosity is relatively high, small particle
Porosity is lower between material, is likely to result in material and is sintered non-uniform problem.So setting coarse fodder baffle and fines baffle, institute
It states in rotation process, fines baffle dishes out fines to body centre, and coarse fodder baffle dishes out coarse fodder to cylinder edge, to make
Coarse fodder and fines mixing it is relatively uniform, be conducive to the Even Sintering of material.
Preferably, being provided with fixed device at the tubular axis, the fixed device is fixed on by fixed link
On cylinder, the coarse fodder baffle plate setting is on the securing means；
The fixed device includes axially disposed more than two fixed rings, is connected with connecting rod on the ring that is fixedly connected.
Coarse fodder baffle in the application is fixed on the securing means by the side of axial ray, and fixed device has fixed ring and company
Extension bar is constituted, so that material can be also spilled over from coarse fodder baffle by the side of axial ray, will not be accumulated on coarse fodder baffle.
Preferably, the coarse fodder baffle and/or fines baffle end be to the back sweep in barrel body rotation direction, it can
Prevent material from excessively accumulating and promoting being uniformly distributed for coarse fodder and fines on coarse fodder baffle or fines baffle.
Preferably, the cylinder is obliquely installed gradually downward along the direction of Flow of Goods and Materials, by the way that inclined angle is arranged
The velocity of rotation of degree and entire body controls material residence time in cylinder.
Preferably, the cylinder is gradually increased from feed end to discharge end diameter, selected according to the residence time of material
Select the cylinder of different size.
Preferably, be provided with deflector on the coarse fodder baffle and/or fines baffle, the deflector end is to object
Expect direction of transfer inclination.
By selecting the deflector of different inclined degrees, it can accelerate or slow down to a certain extent the mobile speed of material
Degree, to change material residence time in cylinder.
Compared with prior art, the beneficial effects of the utility model are at least one of following:
The device of the application can safely and effectively handle inertia aluminium ash in aluminium ash, and milk of lime supplying and F-Reaction generates
CaF2Element and elimination F are endangered to remove-It is endangered into flue gas bring, while being capable of handling Bayer process richness product organic matter.
The setting of rotary kiln can promote the material of different-grain diameter uniformly to mix, and improve the efficiency and effect of calcining.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device of inertia aluminium ash processing in a kind of aluminium ash treatment process of the utility model.
Fig. 2 is the sectional view of the utility model rotary kiln.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment 1:
A kind of device of inertia aluminium ash processing in aluminium ash treatment process is present embodiments provided, as shown in Figure 1, including successively
Rotary kiln 1, cooler 2, grinding machine 3 and the dissolution slot 4 of connection, wherein
The rotary kiln 1 is also connected with burner 5 and evacuation port, and combustion gas entrance is provided on the burner 5 and is helped
Fuel gas inlet.
Embodiment 2:
The present embodiment on the basis of embodiment 1, further defines and is connected with centrifugal blower on the cooler 2.
Embodiment 3:
The present embodiment on the basis of embodiment 1, further defines the cooler 2 and 3 junction of grinding machine is provided with
Bagroom.
Rotary kiln 1, cooler 2, the devices such as grinding machine 3 are set according to the technological requirements, and raw slurry spray gun is from 1 kiln hood of rotary kiln
It sprays into kiln, using natural gas as fuel, clinkersintering reaction is carried out at 1000 DEG C, the clinker sintered is through cooler 2
After being cooled to 120 DEG C, it is sent into ball mill 3 with conveyer, supplying alumina evaporation mother liquor is sintered, and can gradually consume oxidation
The organic matter of aluminium production system achievees the purpose that exclude organic matter in alumina producing system.By evaporation mother liquor and evaporation salt discharge
The organic matter taken out of is converted to CO after sintering2Gas after electric precipitation, is discharged into atmosphere into newly-built chimney with kiln exit gas.
Add the primary wash liquor that Bayer process system is sent simultaneously in ball mill 3, carry out Clinker digestion, the slurries after dissolution into
Entering to dissolve out slot 4, the dissolution fluid dissolved out with one section mixes, the high pressure digestion pit of Bayer process system is then pumped to dissolution, with
Bayer process system stripping slurry interflow.Using this technique, the aluminium in aluminium ash was not only recycled but also organic matter by Bayer process is effectively treated
Accumulation is, it can be achieved that the target that aluminium grey efficient, economy, Environmental-protection comprehensive utilize.
Embodiment 4:
The present embodiment on the basis of embodiment 1, further defines the rotary kiln 1 and includes cylinder 11 and be arranged in cylinder
Coarse fodder baffle 13 and fines baffle 12 in body 11, the coarse fodder baffle 13 and fines baffle 12 are along the axis direction of cylinder 11
Setting；
The fines baffle 12 is arranged on 11 inner wall of cylinder, and fines baffle 12 is arranged in by axial ray in coarse fodder baffle 13
Side, the coarse fodder baffle 13 and fines baffle 12 be staggered setting and it is circumferentially arranged there are two more than.
In 1 rotation process of rotary kiln, short grained fines can float on small close to 11 inner wall of cylinder, the coarse fodder of bulky grain
The separation that large granular materials and small particles material are caused above grain fines, since large granular materials porosity is relatively high, little particle
Porosity is lower between material, is likely to result in material and is sintered non-uniform problem.So setting coarse fodder baffle 13 and fines gear
Plate 12, in the rotation process, fines baffle 12 dishes out fines to 11 center of cylinder, and coarse fodder baffle 13 is by coarse fodder to cylinder 11
Edge is dished out, so that it is relatively uniform to mix coarse fodder and fines, is conducive to the Even Sintering of material.
Embodiment 5:
The present embodiment further defines on the basis of embodiment 4 and is provided with fixed device at 11 axis of cylinder
14, the fixed device 14 is fixed on cylinder 11 by fixed link, and the setting of coarse fodder baffle 13 is on fixed device 14；
The fixed device 14 includes axially disposed more than two fixed rings, is connected with connection on the ring that is fixedly connected
Bar, as shown in Figure 2.
Coarse fodder baffle 13 in the application is fixed on fixed device 14 by the side of axial ray, and fixed device 14 has fixation
Ring and connecting rod are constituted, so that material can be also spilled over from coarse fodder baffle 13 by the side of axial ray, it will not be in coarse fodder baffle
It is accumulated on 13.
Embodiment 6:
The present embodiment further defines 12 end of the coarse fodder baffle 13 and/or fines baffle on the basis of embodiment 4
Hold back sweep to 11 rotation direction of cylinder, can prevent material on coarse fodder baffle 13 or fines baffle 12 excessively accumulation and
Promote being uniformly distributed for coarse fodder and fines.
Embodiment 7:
The present embodiment further defines the cylinder 11 along the direction of Flow of Goods and Materials gradually on the basis of embodiment 4
Setting is tilted down, by the way that the velocity of rotation of inclined angle and entire body is arranged, controls material residence time in cylinder 11.
Embodiment 8:
The present embodiment further defines the cylinder 11 from feed end to discharge end diameter on the basis of embodiment 4
It gradually increases, the cylinder 11 of different size is selected according to the residence time of material.
Embodiment 9:
The present embodiment further defines on the coarse fodder baffle 13 and/or fines baffle 12 on the basis of embodiment 4
It is provided with deflector, the deflector end is tilted to material transmission direction.
By selecting the deflector of different inclined degrees, it can accelerate or slow down to a certain extent the mobile speed of material
Degree, to change material residence time in cylinder 11.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block
And/or outside the modification and improvement of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (9)
1. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process, it is characterised in that: including sequentially connected rotary kiln
(1), cooler (2), grinding machine (3) and dissolution slot (4), wherein
The rotary kiln (1) is also connected with burner (5) and evacuation port, be provided on the burner (5) combustion gas entrance and
Help fuel gas inlet.
2. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process according to claim 1, which is characterized in that described
Cooler is connected with centrifugal blower on (2).
3. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process according to claim 1, which is characterized in that described
Cooler (2) and grinding machine (3) junction are provided with bagroom.
4. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process according to claim 1, which is characterized in that described
Rotary kiln (1) includes the coarse fodder baffle (13) and fines baffle (12) of cylinder (11) and setting in cylinder (11), the coarse fodder
Baffle (13) and fines baffle (12) are arranged along the axis direction of cylinder (11)；
The fines baffle (12) is arranged on cylinder (11) inner wall, and coarse fodder baffle (13) setting is in fines baffle (12) by paraxial
The side of line, the coarse fodder baffle (13) and fines baffle (12) be staggered setting and it is circumferentially arranged there are two more than.
5. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process according to claim 4, which is characterized in that described
It being provided with fixed device (14) at cylinder (11) axis, the fixed device (14) is fixed on cylinder (11) by fixed link,
Coarse fodder baffle (13) setting is on fixed device (14)；
The fixed device (14) includes axially disposed more than two fixed rings, is connected with connecting rod on the ring that is fixedly connected.
6. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process according to claim 4, which is characterized in that described
Coarse fodder baffle (13) and/or fines baffle (12) end are to the back sweep of cylinder (11) rotation direction.
7. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process according to claim 4, which is characterized in that described
Cylinder (11) is obliquely installed gradually downward along the direction of Flow of Goods and Materials.
8. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process according to claim 4, which is characterized in that described
Cylinder (11) is gradually increased from feed end to discharge end diameter.
9. the device that inertia aluminium ash is handled in a kind of aluminium ash treatment process according to claim 4, which is characterized in that described
Deflector is provided on coarse fodder baffle (13) and/or fines baffle (12), the deflector end is tilted to material transmission direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821060855.3U CN208471557U (en) | 2018-07-05 | 2018-07-05 | The device of inertia aluminium ash processing in a kind of aluminium ash treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821060855.3U CN208471557U (en) | 2018-07-05 | 2018-07-05 | The device of inertia aluminium ash processing in a kind of aluminium ash treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208471557U true CN208471557U (en) | 2019-02-05 |
Family
ID=65213254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821060855.3U Active CN208471557U (en) | 2018-07-05 | 2018-07-05 | The device of inertia aluminium ash processing in a kind of aluminium ash treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208471557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538489A (en) * | 2022-03-18 | 2022-05-27 | 四川轻化工大学 | Method and system for preparing efficient powdery accelerator from aluminum ash |
-
2018
- 2018-07-05 CN CN201821060855.3U patent/CN208471557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538489A (en) * | 2022-03-18 | 2022-05-27 | 四川轻化工大学 | Method and system for preparing efficient powdery accelerator from aluminum ash |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108640137A (en) | A kind of method that inertia aluminium ash is handled in aluminium ash treatment process | |
| WO2018000587A1 (en) | Vacuum induction furnace, electric arc furnace vacuum magnesium refining system and magnesium refining method thereof | |
| CN106011500A (en) | Molten carbon heating type induction furnace based vacuum magnesium production system and magnesium production method thereof | |
| CN208747648U (en) | The system of cement kiln synergic processing Quadratic aluminum dust | |
| CN110923461A (en) | Method and device for treating fly ash | |
| CN108793213A (en) | The method and device of organic matter in aluminium ash sintering process cooperation-removal aluminium oxide mother liquor | |
| CN110482503A (en) | A kind of method of Quadratic aluminum dust comprehensive utilization of resources | |
| CN208471557U (en) | The device of inertia aluminium ash processing in a kind of aluminium ash treatment process | |
| CN113913618A (en) | Method and system for regenerating calcium aluminate by using harmless secondary aluminum ash | |
| CN114054469A (en) | Aluminum ash harmless treatment and resource recycling method and system | |
| CN109957657A (en) | A method of from red mud simultaneously resource utilization iron, sodium, aluminium | |
| CN106011498A (en) | Method for preparing metal aluminum from bauxite through microwave chlorination | |
| CN204508826U (en) | A kind of aluminium ash treatment system produced for corundum | |
| CN109589730B (en) | Waste roasting waste heat utilization and tail gas treatment device | |
| CN115779844B (en) | Slag reactor and slag method | |
| CN104692430A (en) | Aluminum ash processing system for corundum production | |
| CN217251531U (en) | Aluminum ash recovery processing device | |
| CN208772130U (en) | Quadratic aluminum dust resource utilization utilizes the device for producing refining slag | |
| CN208471556U (en) | The device of organic matter in aluminium ash sintering process cooperation-removal aluminium oxide mother liquor | |
| CN108559851B (en) | System and method for cooperatively disposing rare earth polishing powder waste by cement kiln | |
| CN106987713A (en) | A kind of low energy consumption environment protection-type magnetizing roast mine tailing cooling treatment system | |
| CN201081536Y (en) | Lifting blade for rotary kiln | |
| CN210321136U (en) | Cooling device of rotary kiln | |
| CN209568015U (en) | A kind of Dredged bed mud prepares the device of light ceramic | |
| CN1807250A (en) | Method for producing aluminum hydroxide under normal temperature and pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |