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 PDFInfo
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- 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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- pond
- pipeline
- control valve
- reaction tank
- ash
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 60
- 239000004411 aluminium Substances 0.000 title claims abstract description 59
- 230000004087 circulation Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 70
- 150000003839 salts Chemical class 0.000 claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 230000007704 transition Effects 0.000 claims abstract description 36
- 238000010612 desalination reaction Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910017083 AlN Inorganic materials 0.000 abstract description 7
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 abstract description 7
- 229910000329 aluminium sulfate Inorganic materials 0.000 abstract description 6
- 239000013078 crystal Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000000274 aluminium melt Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
Landscapes
- 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
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.
Applications Claiming Priority (4)
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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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CN201910330591.1A Pending CN110026413A (en) | 2018-04-27 | 2019-04-23 | The multiple stage circulation of aluminium lime-ash denitrogenates demineralizer and method |
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