CN110026413A - The multiple stage circulation of aluminium lime-ash denitrogenates demineralizer and method - Google Patents

The multiple stage circulation of aluminium lime-ash denitrogenates demineralizer and method Download PDF

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Publication number
CN110026413A
CN110026413A CN201910330591.1A CN201910330591A CN110026413A CN 110026413 A CN110026413 A CN 110026413A CN 201910330591 A CN201910330591 A CN 201910330591A CN 110026413 A CN110026413 A CN 110026413A
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China
Prior art keywords
pond
pipeline
control valve
reaction tank
ash
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Pending
Application number
CN201910330591.1A
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Chinese (zh)
Inventor
吕帅帅
杜凯峰
李志扬
朱昱
汪兴兴
黄明宇
倪红军
廖萍
唐伟佳
孟月
陈科
倪威
周宇翔
顾涛
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Nantong University
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Nantong University
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Publication date
Priority claimed from CN201810394908.3A external-priority patent/CN108787697A/en
Priority claimed from CN201810394892.6A external-priority patent/CN108704920A/en
Application filed by Nantong University filed Critical Nantong University
Publication of CN110026413A publication Critical patent/CN110026413A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

This application discloses a kind of multiple stage circulations of aluminium lime-ash to denitrogenate demineralizer and method, including reaction tank, heating bath, tank, transition pond and remove salt pond, tank is connected to by first pipe with heating bath, the first control valve is arranged in first pipe, heating bath is connected to by second pipe with reaction tank, the second control valve is arranged in second pipe, reaction tank is connected to by third pipeline with transition pond, third control valve is arranged in third pipeline, transition pond is connected to by the 4th pipeline with salt pond is removed, the 4th control valve is arranged in 4th pipeline, except salt pond is connected to by the 5th pipeline with tank, the 5th control valve is arranged in 5th pipeline, collect salt crystal, it will be imported in tank except the remaining liq in salt pond in reaction process, that completes aluminium ash denitrogenates desalination, it is able to solve aluminium nitride and salt component low efficiency in removal aluminium ash, slow-footed problem.

Description

The multiple stage circulation of aluminium lime-ash denitrogenates demineralizer and method
Technical field
The present disclosure relates generally to aluminium ash process fields, and in particular to aluminium ash denitrogenates desalination field more particularly to a kind of aluminium ash The multiple stage circulation of slag denitrogenates demineralizer and method.
Background technique
Aluminium ash is the important solid waste of aluminum i ndustry, and yield is huge.It is mainly derived from melting aluminium and aluminium alloy is raw It produces the non-molten field trash for swimming in aluminium melt surface in the process, oxide, additive and carries out physics, chemistry instead with additive The reaction product etc. that should be generated results from all production processes that aluminium melts.Original of the aluminium ash composition because of each manufacturer Material and operating condition are different and be slightly changed, but usually all contain metallic aluminium, oxide, nitride and the carbide of aluminium, villiaumite, The ingredients such as villaumite.
Contain aluminium nitride and salt component in aluminium ash, aluminium nitride contact water can generate ammonia during storage, and wherein contain Some salt components have strong influence to the recycling and reusing of aluminium lime-ash, and how research effectively and rapidly removes in aluminium lime-ash Aluminium nitride and salt component, for improving the economic benefit of enterprise, preserving the ecological environment just has important practical significance and real With value.
How aluminium nitride and salt component in aluminium lime-ash is effectively and rapidly removed, so as to better recycling and reusing aluminium ash Slag resource becomes a technical problem.
Summary of the invention
In view of drawbacks described above in the prior art or deficiency, be intended to provide it is a kind of reacted for aluminium ash remove aluminium nitride and salt at The multiple stage circulation of the aluminium lime-ash divided denitrogenates demineralizer and method.
In a first aspect, the multiple stage circulation of aluminium lime-ash of the invention denitrogenates demineralizer, including reaction tank, heating bath, water storage Pond, transition pond and remove salt pond,
Tank is connected to by first pipe with heating bath, and the first control valve is arranged in first pipe, and heating bath passes through second Pipeline is connected to reaction tank, and the second control valve is arranged in second pipe, and reaction tank is connected to by third pipeline with transition pond, third pipe Third control valve is arranged in road, and by the 4th pipeline with except salt pond is connected to, the 4th control valve is arranged in the 4th pipeline in transition pond, removes salt pond It is connected to by the 5th pipeline with tank, the 5th control valve is arranged in the 5th pipeline.
Second aspect, the multiple stage circulation of aluminium lime-ash of the invention denitrogenate desalination method, and implementation method is the more of aluminium lime-ash Grade circulation denitrogenates demineralizer;
The first control valve is opened, tank supplies cold water to heating bath, after cold feed, the first control valve is closed, After heating bath heats cold water to certain temperature, the second control valve is opened, hot water enters in reaction tank, is added into reaction tank certain After hot water, the second control valve is closed, hydrogen peroxide, Peracetic acid, calcium oxide, sodium carbonate, acetic acid, dilute sulfuric acid are added into reaction tank One or more of and aluminium ash, the mass ratio of aluminium ash and hot water is 1:3~1:10, after reacting 5~210min, stand 5~ 60min after the completion of standing, opens third control valve, and the supernatant liquor in reaction tank flows into transition pond, and clear liquid is completely into mistake After crossing pond, closing third control valve opens the 4th control valve, and the clear liquid in transition pond, which flows into, removes salt pond, except salt pond inflow is certain After clear liquid, the 4th control valve is closed, clear liquid crystallizes in except salt pond, after the completion of crystallization, the 5th control valve is opened, except in salt pond Water flows into tank.
According to technical solution provided by the embodiments of the present application, by setting reaction tank, heating bath, tank, transition pond and Except salt pond, tank is connected to heating bath, and heating bath is connected to reaction tank, and reaction tank is connected to transition pond, transition pond and desalination Cold water in tank is imported heating in heating bath and becomes hot water, hot water is imported by pond connection except salt pond is connected to tank It is reacted in reaction tank, the supernatant liquor after reacting static in reaction tank imports in transition pond, and the solid in reaction tank is put into In warehouse, by the liquid importing in transition pond except reaction precipitation salt crystal in salt pond, salt crystal is collected, will remove and be reacted in salt pond Remaining liq in journey imports in tank, and that completes aluminium ash denitrogenates desalination, be able to solve in removal aluminium ash aluminium nitride and salt at Component efficiency is low, slow-footed problem.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other Feature, objects and advantages will become more apparent upon:
Fig. 1 is that the multiple stage circulation of the aluminium lime-ash of the embodiment of the present invention denitrogenates the structural schematic diagram of demineralizer;
Fig. 2 is that the multiple stage circulation of the aluminium lime-ash of the embodiment of the present invention denitrogenates the structural schematic diagram of demineralizer;
Fig. 3 is that the multiple stage circulation of the aluminium lime-ash of the embodiment of the present invention denitrogenates the structural schematic diagram of demineralizer.
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 Convenient for description, part relevant to invention is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
One of embodiment of the invention is to please refer to Fig. 1 to 3, and the multiple stage circulation of aluminium lime-ash of the invention is denitrogenated Salt device, including reaction tank 30, heating bath 62, tank 61, transition pond 40 and remove salt pond 50,
Tank 61 is connected to by first pipe 11 with heating bath, and the first control valve 21, heating bath is arranged in first pipe 11 62 are connected to by second pipe 12 with reaction tank 30, and the second control valve 22 is arranged in second pipe 12, and reaction tank 30 passes through third pipe Road 13 is connected to transition pond 40, and third control valve 23 is arranged in third pipeline 13, and transition pond 40 is by the 4th pipeline 14 and removes salt pond The 4th control valve 24 is arranged in 50 connections, the 4th pipeline 14, except salt pond 50 is connected to by the 5th pipeline 15 with tank 61, the 5th pipe The 5th control valve 25 is arranged in road 15.
Further, the first opening of setting at the top of reaction tank 30, the first opening sealed set have the first sealing cover 31, and first Sealing cover 31 is provided with the 6th pipeline 16,16 connected reaction pond 30 of the 6th pipeline and absorption plant 32.
Further, at least junction of the 6th pipeline 16 and the first sealing cover 31 is provided with gas filtration net.
Further, agitating device 34 is provided in reaction tank 30, agitating device 34 includes mixing part and stirring rod, stirring Portion is fixedly connected with stirring rod, and insulating layer 35 is provided on the outside of reaction tank 30.
Further, reaction tank 30 is connected to by the 7th pipeline 17 with the first drying unit 33, and the 7th pipeline 17 is provided with 7th control valve, the 7th pipeline 17 are arranged in 30 bottom of reaction tank.
Further, the second opening of setting at the top of transition pond 40, the second opening sealed set have the second sealing cover, remove salt pond 50 are provided with heating device.
Further, except setting third opening at the top of salt pond 50, third opening sealed set has third sealing cover 51.
Further, it is connected to by the 8th pipeline 18 with the second drying unit 52 except salt pond 50, the 8th pipeline 18 is provided with 8th control valve, the 8th pipeline 18 are arranged in desalination bottom of pond portion.
Further, third pipeline 13 and 30 junction of reaction tank are provided with 300~700 mesh filter screens.
Further, the 4th pipeline 14 is provided with 1000~1500 mesh filter screens with 40 junction of transition pond.
Further, in 61 bottom of tank, second pipe 12 is arranged in 62 bottom of heating bath the setting of first pipe 11, the Three pipelines 13 are arranged in 30 side wall of reaction tank, and third pipeline 13 is provided with certain distance, the 4th pipeline apart from 30 bottom of reaction tank 14 settings are removing 50 side wall of salt pond in 40 bottom of transition pond, the setting of the 5th pipeline 15, and the 5th pipeline 15 is apart from except 50 bottom of salt pond It is provided with certain distance.
In an embodiment of the present invention, aluminium lime-ash multiple stage circulation denitrogenates demineralizer, including reaction tank, transition pond, desalination At pond, tank, heating bath, warehouse, drying unit, absorption plant and salt stacking.Reaction tank is equipped with the first sealing cover, stirring dress It sets and insulating layer.It is connected between reaction tank and heating bath with second pipe, and is equipped with the second control valve;Reaction tank and transition pond it Between connected and be equipped with 300~700 mesh filter screens and third control valve with third pipeline;The first sealing cover and absorption dress of reaction tank Connection is set, and is equipped with gas filtration net;Reaction tank and the first drying unit are connected with pipeline;First drying unit passes through conveyer belt It is connected with warehouse;First drying unit is connected with heating bath with pipeline.Transition pond is equipped with the second sealing cover and heating device.Desalination It is connected between pond and transition pond with the 4th pipeline, and is equipped with 1000~1500 mesh filter screens and the 4th control valve;Except salt pond and storage It is connected between pond with the 5th pipeline, and is equipped with the 5th control valve;Except the third sealing cover on salt pond is connected with heating bath;Desalination Pond is connected at the stacking of salt by pipeline by pipeline.Aluminium lime-ash multiple stage circulation of the invention denitrogenates demineralizer can be according to reality The appropriate on-off reaction pond of border situation and desalination pool count realize the using and the reserved, dual-purpose two standby, multi-purpose prepare mores etc..
Another embodiment of the invention is that the multiple stage circulation of aluminium lime-ash denitrogenates desalination method, and implementation method is aluminium ash The multiple stage circulation of slag denitrogenates demineralizer;
The first control valve is opened, tank supplies cold water to heating bath, after cold feed, the first control valve is closed, After heating bath heats cold water to certain temperature, the second control valve is opened, hot water enters in reaction tank, is added into reaction tank certain After hot water, the second control valve is closed, hydrogen peroxide, Peracetic acid, calcium oxide, sodium carbonate, acetic acid, dilute sulfuric acid are added into reaction tank One or more of and aluminium ash, the mass ratio of aluminium ash and hot water is 1:3~1:10, after reacting 5~210min, stand 5~ 60min after the completion of standing, opens third control valve, and the supernatant liquor in reaction tank flows into transition pond, and clear liquid is completely into mistake After crossing pond, closing third control valve opens the 4th control valve, and the clear liquid in transition pond, which flows into, removes salt pond, except salt pond inflow is certain After clear liquid, the 4th control valve is closed, clear liquid crystallizes in except salt pond, after the completion of crystallization, the 5th control valve is opened, except in salt pond Water flows into tank.
In an embodiment of the present invention, the first control valve is opened, tank supplies cold water to heating bath, after the completion of supply, It closes the first control valve and opens the second control valve between heating bath and reaction tank, hot water enters after the heated pond heating of cold water After reaction tank, the second control valve is closed, opens agitating device and gas absorbing device.Hydrogen peroxide, Peracetic acid, oxidation is first added One or more of calcium, sodium carbonate, acetic acid, dilute sulfuric acid mix according to a certain percentage, then by aluminium ash: water=1:3~1:10 Aluminium lime-ash is added into reaction tank for ratio, while hydrogen peroxide, Peracetic acid is added, calcium oxide, sodium carbonate, acetic acid, in dilute sulfuric acid One or more mix according to a certain percentage, cover the first sealing cover, aluminium lime-ash starts to be removed under the effect of the catalyst Nitrogen processing.After reacting 5~210min, agitating device is closed, 5~60min is stood, other heating baths and reaction can be opened at this time Control valve between pond repeats aforesaid operations and carries out the reaction of aluminium lime-ash, to save the time.It opens between reaction tank and transition pond Third control valve, the supernatant liquor in reaction tank flow into transition pond after 300~700 mesh filter screen filtrations, are then shut off third Control valve.It opens transition pond and except the 4th control valve between salt pond, the clear liquid in transition pond is through 1000~1500 mesh filter screens It is flowed into after filtering and removes salt pond, close the 4th control valve, carrying out crystallisation by cooling, (such as uncrystallizable precipitation salt crystal, then open heating Device, vapor enter heating bath by pipeline and are recycled).Then it opens except the 5th control between salt pond and tank Valve, cold water enter tank by the 5th pipeline, enter reaction tank using heating and aluminium lime-ash reacts, so recycle.Wherein, In reaction tank after completion of the reaction, aluminium ash is dried by pipeline into the first drying unit, and vapor enters heating bath by pipeline, And the aluminium ash after drying enters warehouse storage through conveyer belt;Except salt pond desalination after treatment, by the second drying unit Drying, the salt crystal after drying enter at salt stacking through pipeline.Aluminium lime-ash multiple stage circulation of the invention denitrogenates demineralizer, efficiency Fastly, the exhaust gas and salt generated in aluminium ash reaction process can be recycled, avoids causing environmental pollution in reaction process.It can be arranged more A reaction tank and except salt pond is reacted, improves reaction efficiency.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art Member is it should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature Any combination and the other technical solutions formed.Such as features described above has similar function with (but being not limited to) disclosed herein Can technical characteristic replaced mutually and the technical solution that is formed.

Claims (10)

1. a kind of multiple stage circulation of aluminium lime-ash denitrogenates demineralizer, which is characterized in that including reaction tank, heating bath, tank, mistake It crosses pond and removes salt pond,
The tank is connected to by first pipe with the heating bath, and the first control valve is arranged in the first pipe, described to add Hot pond be connected to by second pipe with the reaction tank, the second control valve of the second pipe setting, and the reaction tank passes through the Three pipelines are connected to the transition pond, and third control valve is arranged in the third pipeline, and the transition pond passes through the 4th pipeline and institute It states except salt pond is connected to, the 4th control valve is arranged in the 4th pipeline, described to be connected except salt pond by the 5th pipeline and the tank Logical, the 5th control valve is arranged in the 5th pipeline.
2. the multiple stage circulation of aluminium lime-ash according to claim 1 denitrogenates demineralizer, which is characterized in that the reaction tank top Portion is provided with the first opening, and the first opening sealed set has the first sealing cover, and first sealing cover is provided with the 6th pipe Road, the 6th pipeline are connected to the reaction tank and absorption plant.
3. the multiple stage circulation of aluminium lime-ash according to claim 2 denitrogenates demineralizer, which is characterized in that at least described 6th The junction of pipeline and first sealing cover is provided with gas filtration net.
4. the multiple stage circulation of aluminium lime-ash according to claim 1 denitrogenates demineralizer, which is characterized in that in the reaction tank It is provided with agitating device, the agitating device includes mixing part and stirring rod, and the mixing part is fixedly connected with the stirring rod, Insulating layer is provided on the outside of the reaction tank.
5. the multiple stage circulation of aluminium lime-ash according to claim 1 denitrogenates demineralizer, which is characterized in that the reaction tank is logical It crosses the 7th pipeline to be connected to the first drying unit, the 7th pipeline is provided with the 7th control valve, and the 7th pipeline setting exists The reaction bottom of pond portion.
6. the multiple stage circulation of aluminium lime-ash according to claim 1 denitrogenates demineralizer, which is characterized in that the transition Chi Ding The second opening of portion's setting, the second opening sealed set has the second sealing cover, described except salt pond is provided with heating device.
7. the multiple stage circulation of aluminium lime-ash according to claim 1 denitrogenates demineralizer, which is characterized in that described except salt pond is pushed up Portion is arranged third and is open, and the third opening sealed set has third sealing cover.
8. the multiple stage circulation of aluminium lime-ash according to claim 7 denitrogenates demineralizer, which is characterized in that described except salt pond is logical It crosses the 8th pipeline to be connected to the second drying unit, the 8th pipeline is provided with the 8th control valve, and the 8th pipeline setting exists The desalination bottom of pond portion.
9. the multiple stage circulation of aluminium lime-ash according to claim 1 denitrogenates demineralizer, which is characterized in that the first pipe Setting is in the water storage bottom of pond portion, and in the heating bottom of pond portion, the third pipeline is arranged described for the second pipe setting Reaction tank side wall, the third pipeline are provided with certain distance apart from the reaction bottom of pond portion, and the 4th pipeline is arranged in institute Transition bottom of pond portion is stated, the 5th pipeline setting removes salt pond side wall described, and the 5th pipeline is apart from the desalination bottom of pond portion It is provided with certain distance.
10. a kind of multiple stage circulation of aluminium lime-ash denitrogenates desalination method, which is characterized in that implementing the method is claim 1- The multiple stage circulation of 9 described in any item aluminium lime-ash denitrogenates demineralizer;
The first control valve is opened, tank supplies cold water to heating bath, after cold feed, closes the first control valve, heating After cold water to certain temperature is heated in pond, the second control valve is opened, hot water enters in reaction tank, and certain hot water is added into reaction tank Afterwards, close the second control valve, be added into reaction tank hydrogen peroxide, Peracetic acid, calcium oxide, sodium carbonate, acetic acid, in dilute sulfuric acid The mass ratio of one or more of and aluminium ash, aluminium ash and hot water is 1:3~1:10, after reacting 5~210min, stands 5~60min, After the completion of standing, third control valve is opened, the supernatant liquor in reaction tank flows into transition pond, and clear liquid is completely into transition pond Afterwards, third control valve is closed, the 4th control valve is opened, the clear liquid in transition pond, which flows into, removes salt pond, except salt pond flows into certain clear liquid Afterwards, the 4th control valve is closed, clear liquid crystallizes in except salt pond, after the completion of crystallization, the 5th control valve is opened, except the water flow in salt pond Enter in tank.
CN201910330591.1A 2018-04-27 2019-04-23 The multiple stage circulation of aluminium lime-ash denitrogenates demineralizer and method Pending CN110026413A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201810394908.3A CN108787697A (en) 2018-04-27 2018-04-27 The multiple stage circulation of aluminium lime-ash denitrogenates demineralizer
CN2018103948926 2018-04-27
CN201810394892.6A CN108704920A (en) 2018-04-27 2018-04-27 The multiple stage circulation of aluminium lime-ash denitrogenates desalination method
CN2018103949083 2018-04-27

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CN110026413A true CN110026413A (en) 2019-07-19

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Cited By (1)

* Cited by examiner, † Cited by third party
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CN114455555A (en) * 2022-03-09 2022-05-10 福建华清电子材料科技有限公司 Processing equipment and preparation process of high-purity low-oxygen-content aluminum nitride powder

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JP3965139B2 (en) * 2003-08-19 2007-08-29 新日本製鐵株式会社 Method for reforming steelmaking slag
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CN114455555A (en) * 2022-03-09 2022-05-10 福建华清电子材料科技有限公司 Processing equipment and preparation process of high-purity low-oxygen-content aluminum nitride powder

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