CN106861581A - Device for reclaiming nitrogen in aluminium lime-ash - Google Patents
Device for reclaiming nitrogen in aluminium lime-ash Download PDFInfo
- Publication number
- CN106861581A CN106861581A CN201710104286.1A CN201710104286A CN106861581A CN 106861581 A CN106861581 A CN 106861581A CN 201710104286 A CN201710104286 A CN 201710104286A CN 106861581 A CN106861581 A CN 106861581A
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- Prior art keywords
- housing
- filter
- ash
- aluminium lime
- aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1418—Recovery of products
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/28—Methods of preparing ammonium salts in general
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Treating Waste Gases (AREA)
Abstract
This application discloses a kind of device for reclaiming nitrogen in aluminium lime-ash, including：Reactor and absorption tower, by the pipeline communication for collecting ammonia between reactor and absorption tower.The device for reclaiming nitrogen in aluminium lime-ash that the application is provided, aluminium lime-ash generates ammonia after being hydrolyzed in reactor, ammonia is collected by absorption tower through pipeline transmission, the nitrogen in aluminium lime-ash is reclaimed to greatest extent, pollution of the aluminium lime-ash to environment during post-production is avoided, aluminium ash the innoxious of Slag treatment, resource and benefit is realized.
Description
Technical field
The disclosure relates generally to the retracting device of nitrogen, and in particular to the device for reclaiming nitrogen in aluminium lime-ash.
Background technology
Aluminium lime-ash (aluminium ash/aluminium slag) is common discarded object in aluminum i ndustry, and yield is huge, its main source be smelting aluminum and
Float in aluminium alloy production process aluminium solution surface not melt field trash, oxide, additive and with additive carry out physics,
Chemically react product of generation etc., results from all production processes that aluminium is melted.
In the smelting process of aluminium generally will to smelting furnace in inflated with nitrogen, accelerate purification and purification, a part of nitrogen is in evaporation
When swum in the aluminium lime-ash of aluminium water surface and absorbed, therefore aluminium lime-ash is nitrogenous；And aluminium nitride meets water generation ammonia, it is heated and easily wave
Hair, the i.e. irritant extremely strong ammonia taste so aluminium lime-ash makes moist brings greatly to ambient stable and personnel health for a long time
Puzzlement.
Application way currently for nitrogen in aluminium lime-ash is a lot, substantially stays in theoretic, and to aluminium lime-ash
The recycle device of middle nitrogen is few, needs a kind of device for reclaiming nitrogen in aluminium lime-ash of offer badly.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, expect to provide a kind of dress for reclaiming nitrogen in aluminium lime-ash
Put, to reclaim the nitrogen in aluminium lime-ash to greatest extent, it is to avoid pollution of aluminium lime-ash (aluminium slag) the post-production process to environment,
Realize aluminium ash the innoxious of Slag treatment, resource and benefit.
A kind of device for reclaiming nitrogen in aluminium lime-ash that the present invention is provided, including reactor and absorption tower, it is described
By the pipeline communication for collecting ammonia between reactor and the absorption tower.
Compared with prior art, the application provide the device for reclaiming nitrogen in aluminium lime-ash, for aluminium lime-ash with
Water is mixed to form slurry, be hydrolyzed reaction, generates ammonia and is transmitted to absorption tower through pipeline, and then extracts nitrogen.This hair
The device of bright offer can efficiently, rapidly reclaim the nitrogen in aluminium lime-ash, by nitrogen ignored in aluminium lime-ash for a long time
Fully utilize, while the penetrating odor problem occurred during aluminium lime-ash is recycled can be efficiently solved, greatly change
Kind working environment, has ensured the life and health of operating personnel.
Brief description of the drawings
By the detailed description made to non-limiting example made with reference to the following drawings of reading, the application other
Feature, objects and advantages will become more apparent upon：
Fig. 1 is the structural representation provided by the present invention for reclaiming the device of nitrogen in aluminium lime-ash；
Fig. 2 is the structural representation provided by the present invention for reclaiming the first housing in the device of nitrogen in aluminium lime-ash；
Fig. 3 is provided by the present invention for the first housing perspective view in the device of nitrogen in recovery aluminium lime-ash；
Fig. 4 is the attachment structure provided by the present invention for reclaiming agitating shaft and motor in the device of nitrogen in aluminium lime-ash
Schematic diagram；
Fig. 5 is the structural representation provided by the present invention for reclaiming filter in the device of nitrogen in aluminium lime-ash.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to the invention.It also should be noted that, in order to
It is easy to description, the part related to invention is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figures 1 to 5, a kind of device for reclaiming nitrogen in aluminium lime-ash that the application is provided, including：Reaction
Kettle 1 and absorption tower 2, connect between reactor 1 and absorption tower 2 by for collecting the pipeline 3 of ammonia.
Further, reactor 1 includes reactor housing, and agitating shaft 5 and agitating shaft 5 are horizontally installed with reactor housing
It is connected with the motor 4 outside reactor housing, the outside of agitating shaft 5 is provided with stirring vane 6.
As shown in figure 4, being connected by ball bearing 10 between agitating shaft 5 and reactor housing.Agitating shaft 5 and reaction still shell
Connection is rotated between body, aluminium lime-ash can be poured into the chamber to reactor by first through hole 111 and added water to form slurry；By
Connection is rotated between reactor housing and agitating shaft, after the slurry reaction in question response kettle is complete, rotational response still shell body makes
Obtain first through hole and be located at lower section, first through hole may act as discharging opening and pour out mixture.In the application on reactor housing
One through hole integrates the function of feeding mouth, water inlet and discharging opening, greatly simplifies the structure of device.
Gear drive between agitating shaft 5 and motor 4, one end of agitating shaft 5 stretches out reactor housing and the end is provided with
One gear；One end of agitating shaft 5 connects a connection end and stretches out reactor housing, and connection end is provided with first gear.Such as Fig. 4
Shown, one end of the motor shaft of the first motor 4 is provided with second gear 41, and first gear 51 is intermeshed with second gear 41,
Agitating shaft is rotated by motor, and the velocity of rotation of agitating shaft is preferably 5r/min~30r/min, is easy to slurry agitation
Uniformly, ammonia is efficiently volatilized.
Further, reactor housing includes the first housing 11 and the second housing 12 that are connected by flange, the first housing
11 and the second flange connection surface between housing 12 be the first plane, the first plane is vertically distributed, the first housing it is upper
Side is provided with first through hole 111 and venthole 112, and venthole 112 is connected with pipeline 3.
Further, the first housing 11 and the second housing 12 are hemispherical dome structure；The inwall and second shell of the first housing
The inwall of body is equipped with the flow-stopping plate 7 of multiple projections, and flow-stopping plate 7 deviates the plane that the horizontal axis of reactor housing is passed through.
Reactor housing is spherical structure in the application, and agitating shaft is located on the horizontal axis of reactor housing；By setting flow-stopping plate,
So that the slurry that aluminium lime-ash is mixed to form with water is during being stirred, part size falls into flow-stopping plate and in the effect of gravity
It is lower to be slided along flow-stopping plate, relative to the situation that only blade is rotated, curtain coating stroke is increased to a certain extent and material external body is stagnant
The time is stayed, makes the reaction of slurry more abundant, feed liquid mixes evenly, and stirring efficiency is higher；Accelerate the release process of gas simultaneously,
It is easy to faster take the ammonia for reacting generation out of.
Further, on the inwall of the first housing the flow-stopping plate on flow-stopping plate and the inwall of the second housing is flat on first
Face is symmetrical；Flow-stopping plate on the inwall of the first housing is uniformly distributed.
Further, where flow-stopping plate from lateral first plane away from the first plane on the inwall of the first housing
Side extends, and flow-stopping plate and the first plane are into 30 °~60 °.As shown in figure 3, by taking a certain flow-stopping plate 7a as an example, the first plane I with
The angle α between plane II where flow-stopping plate is into 30 °~60 °.During such setting ensures agitating shaft stirring slurry,
Slurry can be detained a period of time on flow-stopping plate.
Further, support 20 is also included for reclaiming the device of nitrogen in aluminium lime-ash, reactor housing is located at support
On；In the lower section of reactor housing and on direction where the first plane, fulcrum bearing is provided with a concave part, the first housing and
The flange connecting portion of two housings is mutually chimeric with concave part；On the direction of the first plane, flange connecting portion is provided with
One circular hole, concave part is provided with the second circular hole, is connected by latch 21 between the first circular hole and the second circular hole.Support includes two
Support ear, circular hole is respectively equipped with two support ears, is connected by rolling bearing between agitating shaft and circular hole, aluminium in reactor
When lime-ash reacts with water, latch 21 is plugged, first through hole 111 is located at the top of the first housing；Pulled up after having reacted slotting
Pin 21,180 ° of upset reactor housing, is poured out slurry by first through hole 111.In the width perpendicular to the first plane
On, the position of first through hole 111 and venthole 112 is staggered with the position of concave part, when 180 ° of reactor housing is overturn, first
Through hole 111 and venthole 112 are independent of each other with concave part.Motor part is supported by corresponding bearing, not shown in figure.
Further, filter is additionally provided with pipeline, filter includes the first filtering for filtering aluminium ash particle
Device, filter also includes the second filter for filtering steam.
In the application, the first filter 8, the second filter 9 are sequentially arranged on pipeline 3.
Further, the first filter 8 includes columned first filter core 81 and positioned at the first filter core both sides the
One hard screen pack 82, the first filter core includes the filter body structure being made up of filter cotton winding, and work is evenly distributed with filter body structure
Property charcoal particle；
Pipeline is provided with the first protuberance 31, and two first hard screen packs 82 are sticked in the two of the inwall of the first protuberance 31
End, the first filter core 81 is contacted with the interior wall seamless of the first protuberance 31 and is supported in the centre of two first hard screen packs 82.
Further, the second filter 9 includes the second filter core 91 of cylindrical-shaped structure and positioned at the second filter core both sides
The second hard screen pack 92, the composition of the second filter core at least includes following one kind：Quick lime, NaOH and silica gel；
Pipeline is provided with the second protuberance 32, and two second hard screen packs 92 are sticked in the two of the inwall of the second protuberance 32
End, the second filter core 91 is contacted with the interior wall seamless of the second protuberance 32 and is supported in the centre of two second hard screen packs 92.
The operation principle of the device for collecting nitrogen in aluminium lime-ash provided herein is：
Aluminium lime-ash from the chamber that first through hole 111 pours into reactor, and by chamber from first through hole 111 to reactor
The hot water of 60~90 DEG C of indoor addition (such as 60 DEG C, 70 DEG C, 80 DEG C, 90 DEG C) to form slurry, the wherein matter of aluminium lime-ash and water
Amount is than being 1：1~1：3, feeding mouth is then shut off, open motor 4 and drive the stirring vane 6 on agitating shaft 5 to rotate, stirring vane 6
Slurry motion is driven, part size is fallen on flow-stopping plate, is slided along flow-stopping plate under gravity, increase curtain coating stroke and material body
The outside holdup time, to be sufficiently stirred for slurry.Nitrogen in aluminium lime-ash generally exists in AlN forms, meets water generation following anti-
Should：AlN+3H2O=Al (OH)3+NH3, that is, generate NH3After depart from slurry, through piping reach filter carry out solid respectively
The filtering of particle and steam, to obtain more clean gas, finally absorbs into ammonium salt, then revolving reaction by absorption tower strong acid
Still shell body, reacted slurry is poured out from first through hole 111.
Above description is only the preferred embodiment and the explanation to institute's application technology principle of the application.People in the art
Member is it should be appreciated that involved invention scope in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where the inventive concept is not departed from, is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical schemes for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (10)
1. a kind of device for reclaiming nitrogen in aluminium lime-ash, it is characterised in that including：Reactor and absorption tower, it is described anti-
Answer between kettle and the absorption tower by the pipeline communication for collecting ammonia.
2. the device for reclaiming nitrogen in aluminium lime-ash according to claim 1, it is characterised in that the reactor bag
Reactor housing is included, agitating shaft and the agitating shaft are horizontally installed with the reactor housing and the reactor housing is located at
Outer motor is connected, and the agitating shaft outside is provided with stirring vane.
3. the device for reclaiming nitrogen in aluminium lime-ash according to claim 2, it is characterised in that the reaction still shell
Body includes the first housing and the second housing that are connected by flange, and the flange between first housing and second housing connects
Junction is the first plane, and first plane is vertically distributed, and first through hole is provided with above first housing and is gone out
Stomata, the venthole is connected with the pipeline.
4. the device for reclaiming nitrogen in aluminium lime-ash according to claim 3, it is characterised in that first housing
Hemispherical dome structure is with second housing；It is equipped with the inwall of first housing and the inwall of second housing many
Individual raised flow-stopping plate, the flow-stopping plate deviates the plane that the horizontal axis of the reactor housing is passed through.
5. the device for reclaiming nitrogen in aluminium lime-ash according to claim 4, it is characterised in that first housing
Inwall on flow-stopping plate and second housing inwall on flow-stopping plate be distributed on first plane symmetry；Described
Flow-stopping plate on the inwall of one housing is uniformly distributed.
6. the device for reclaiming nitrogen in aluminium lime-ash according to claim 5, it is characterised in that in the first shell
On the inwall of body, the flow-stopping plate extends from the one end away from first plane to the side where first plane, institute
State between flow-stopping plate and first plane into 30 °~60 °.
7. the device for reclaiming nitrogen in aluminium lime-ash according to claim 3, it is characterised in that also including support,
The reactor housing is on the support；
In the lower section of the reactor housing and on direction where first plane, the fulcrum bearing is provided with a groove
Portion, first housing is mutually chimeric with the concave part with the flange connecting portion of second housing；
On the direction of first plane, the flange connecting portion is provided with the first circular hole, is set on the concave part
There is the second circular hole, be connected by latch between first circular hole and second circular hole.
8. the device for reclaiming nitrogen in aluminium lime-ash according to claim any one of 1-7, it is characterised in that described
Filter is additionally provided with pipeline.
9. the device for reclaiming nitrogen in aluminium lime-ash according to claim 8, it is characterised in that the filter
Including the first filter for filtering aluminium ash particle, first filter includes columned first filter core and position
In the first hard screen pack of the first filter core both sides, first filter core includes the filter body knot being made up of filter cotton winding
Structure, activated carbon granule is evenly distributed with the filter body structure；
The pipeline is provided with the first protuberance, and the first hard filter network card described in two is together in the inwall of first protuberance
Two ends, first filter core is contacted with the interior wall seamless of first protuberance and is supported in the first hard screen pack described in two
It is middle.
10. the device for reclaiming nitrogen in aluminium lime-ash according to claim 8, it is characterised in that the filtering dress
Put including the second filter for filtering steam, second filter includes columned second filter core and is located at
Second hard screen pack of the second filter core both sides, the composition of second filter core at least includes following one kind：Quick lime, hydrogen
Sodium oxide molybdena and silica gel；
The pipeline is provided with the second protuberance, and the second hard filter network card described in two is together in the inwall of second protuberance
Two ends, second filter core is contacted and is supported in two second hard screen packs with the interior wall seamless of second protuberance
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104286.1A CN106861581B (en) | 2017-02-24 | 2017-02-24 | Device for recovering nitrogen element in aluminum ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104286.1A CN106861581B (en) | 2017-02-24 | 2017-02-24 | Device for recovering nitrogen element in aluminum ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106861581A true CN106861581A (en) | 2017-06-20 |
| CN106861581B CN106861581B (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710104286.1A Active CN106861581B (en) | 2017-02-24 | 2017-02-24 | Device for recovering nitrogen element in aluminum ash |
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| Country | Link |
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| CN (1) | CN106861581B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262501A (en) * | 2017-07-07 | 2017-10-20 | 南通大学 | Reaction unit and nitrogen removal system that aluminium lime-ash is denitrogenated |
| CN107321227A (en) * | 2017-07-07 | 2017-11-07 | 江苏海光金属有限公司 | Aluminium buck solution denitrogenates the slurry preparation device of pretreatment |
| CN108117091A (en) * | 2018-01-10 | 2018-06-05 | 南通大学 | Aluminium clinker water solution denitrogenates apparatus control method |
| CN108663482A (en) * | 2018-04-27 | 2018-10-16 | 南通大学 | Ammonia concentration detection method after gas concentration detection apparatus and the hydrolysis of aluminium lime-ash |
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| CN88100289A (en) * | 1987-01-20 | 1988-12-07 | 阿托化学公司 | With vinylchlorid is the mass polymerization production method of the polymkeric substance and the multipolymer of main component |
| US20090191106A1 (en) * | 2008-01-30 | 2009-07-30 | W.C. Heraeus Gmbh | PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION |
| CN204107347U (en) * | 2014-10-21 | 2015-01-21 | 武汉钢铁(集团)公司 | The anti-NH of constant temperature 3the SCR method distributing instrument of corrosion |
| CN104511229A (en) * | 2013-09-29 | 2015-04-15 | 天津众邦化工有限公司 | Tail gas absorption device used in preparation of sodium pentachlorophenate |
-
2017
- 2017-02-24 CN CN201710104286.1A patent/CN106861581B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88100289A (en) * | 1987-01-20 | 1988-12-07 | 阿托化学公司 | With vinylchlorid is the mass polymerization production method of the polymkeric substance and the multipolymer of main component |
| US20090191106A1 (en) * | 2008-01-30 | 2009-07-30 | W.C. Heraeus Gmbh | PROCESSES AND DEVICES FOR REMOVING RUTHENIUM AS RuO4 FROM RUTHENATE-CONTAINING SOLUTIONS BY DISTILLATION |
| CN104511229A (en) * | 2013-09-29 | 2015-04-15 | 天津众邦化工有限公司 | Tail gas absorption device used in preparation of sodium pentachlorophenate |
| CN204107347U (en) * | 2014-10-21 | 2015-01-21 | 武汉钢铁(集团)公司 | The anti-NH of constant temperature 3the SCR method distributing instrument of corrosion |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262501A (en) * | 2017-07-07 | 2017-10-20 | 南通大学 | Reaction unit and nitrogen removal system that aluminium lime-ash is denitrogenated |
| CN107321227A (en) * | 2017-07-07 | 2017-11-07 | 江苏海光金属有限公司 | Aluminium buck solution denitrogenates the slurry preparation device of pretreatment |
| CN108117091A (en) * | 2018-01-10 | 2018-06-05 | 南通大学 | Aluminium clinker water solution denitrogenates apparatus control method |
| CN108663482A (en) * | 2018-04-27 | 2018-10-16 | 南通大学 | Ammonia concentration detection method after gas concentration detection apparatus and the hydrolysis of aluminium lime-ash |
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| Publication number | Publication date |
|---|---|
| CN106861581B (en) | 2020-01-31 |
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