CN116140339A - High-efficiency deamination treatment equipment and method for secondary aluminum ash - Google Patents
High-efficiency deamination treatment equipment and method for secondary aluminum ash Download PDFInfo
- Publication number
- CN116140339A CN116140339A CN202310002573.7A CN202310002573A CN116140339A CN 116140339 A CN116140339 A CN 116140339A CN 202310002573 A CN202310002573 A CN 202310002573A CN 116140339 A CN116140339 A CN 116140339A
- Authority
- CN
- China
- Prior art keywords
- aluminum ash
- deamination
- secondary aluminum
- ash
- tundish
- 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.)
- Granted
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 109
- 230000009615 deamination Effects 0.000 title claims abstract description 80
- 238000006481 deamination reaction Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 239000000843 powder Substances 0.000 claims abstract description 17
- 238000007873 sieving Methods 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 52
- 239000002002 slurry Substances 0.000 claims description 36
- 238000005507 spraying Methods 0.000 claims description 24
- 238000002844 melting Methods 0.000 claims description 19
- 230000007480 spreading Effects 0.000 claims description 18
- 230000008018 melting Effects 0.000 claims description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 11
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000001238 wet grinding Methods 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910018626 Al(OH) Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/70—Chemical treatment, e.g. pH adjustment or oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/35—Shredding, crushing or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/38—Stirring or kneading
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to the technical field of aluminum ash, in particular to a device and a method for efficiently deaminizing secondary aluminum ash, which comprise a secondary aluminum ash powder bin, a pre-deaminizing groove, a sieving machine and a deep deaminizing groove which are sequentially arranged, wherein a paddle device and a tundish are additionally arranged between the secondary aluminum ash powder bin and the pre-deaminizing groove, one end of the paddle device is communicated with the secondary aluminum ash powder bin, and the other end of the paddle device is communicated with the tundish; one end of the tundish, which is far away from the paddle device, is communicated with the pre-deamination tank; a wet mill is additionally arranged between the pre-deamination tank and the sieving machine. Through the design, the contact area of the secondary aluminum ash and water can be effectively increased by a method of combining the secondary aluminum ash and the water through atomization, and a foundation is laid for the subsequent chemical reaction of the aluminum ash.
Description
Technical Field
The invention relates to the technical field of aluminum ash treatment, in particular to a device and a method for efficiently deaminizing secondary aluminum ash.
Background
The secondary aluminum ash is waste after the primary aluminum ash extracts metal aluminum, and the main components of the secondary aluminum ash are aluminum oxide (30% -70%), aluminum nitride (5% -30%), metal aluminum (1% -10%), salts (5% -25%) and other components. The secondary aluminum ash contains toxic and harmful substances such as fluorine, nitrogen and the like, which is the reason why the aluminum ash is listed in the national hazardous waste directory. At present, almost all aluminum electrolysis and aluminum processing enterprises adopt landfill or piling forms to treat secondary aluminum ash, and the method is not only a waste of resources stored in the secondary aluminum ash, but also has the risk of damaging the surrounding ecological environment.
In the process of innocent treatment of the secondary aluminum ash, deamination is an essential link, and the invention patent CN202111357964.8 discloses a process for innocent treatment of the secondary aluminum ash, which adopts a treatment method of mixing and stirring the aluminum ash and water, the method cannot be well combined with the aluminum ash and the water, has lower treatment efficiency, takes time and labor, and can generate aluminum hydroxide which is wrapped on the surface of aluminum ash particles in the reaction process to prevent the aluminum ash from continuously reacting with the water, so that the deamination efficiency is limited, and a new technology for harmlessly absorbing the secondary aluminum ash is urgently needed by enterprises in order to improve the resource utilization efficiency, protect the environment and establish the resource-saving society.
Disclosure of Invention
In order to solve the technical defects in the background art, the invention aims to provide a device and a method for efficiently deaminizing secondary aluminum ash.
The invention adopts the following technical scheme:
the secondary aluminum ash high-efficiency deamination treatment equipment comprises a secondary aluminum ash powder bin, a pre-deamination groove, a screening machine and a deep deamination groove which are sequentially arranged, wherein a paddle device and a tundish are additionally arranged between the secondary aluminum ash powder bin and the pre-deamination groove, one end of the paddle device is communicated with the secondary aluminum ash powder bin, and the other end of the paddle device is communicated with the tundish; one end of the tundish, which is far away from the paddle device, is communicated with the pre-deamination tank; a wet mill is additionally arranged between the pre-deamination tank and the sieving machine.
Preferably, the paddle changing device comprises an ash spreading mechanism, a pressure mechanism and a paddle changing table which are sequentially arranged; the ash spreading mechanism comprises a guide rail, a vibrating mechanism and a corrugated plate, wherein two ends of the corrugated plate are in sliding connection with the guide rail, the vibrating mechanism is fixedly connected to the lower portion of the corrugated plate, and a water spraying mechanism is arranged above the paddle changing table.
Preferably, a plurality of groups of ash spreading mechanisms and the paddle changing tables are arranged on the ash spreading mechanisms and the paddle changing tables, and the ash spreading mechanisms and the paddle changing tables are stacked at intervals.
The method for efficiently deaminizing the secondary aluminum ash is suitable for the efficient deaminizing treatment equipment of the secondary aluminum ash and comprises the following preparation steps:
s1, conveying secondary aluminum ash of a secondary aluminum ash powder bin into a plurality of corrugated plates which are uniformly distributed up and down in a slurry device;
s2, secondary aluminum ash enters a box body of a slurry melting device positioned below the pressure mechanism through an ash spreading mechanism, and the secondary aluminum ash is sprayed out under the action of the pressure mechanism;
s3, combining the sprayed secondary aluminum ash particles with water mist sprayed by a plurality of groups of water spraying mechanisms arranged on a slurry melting table, forming aluminum ash slurry on a smooth table surface which is obliquely arranged, collecting the aluminum ash slurry through a tundish, and conveying the aluminum ash slurry into a pre-deamination tank for pre-deamination;
s4, carrying out wet grinding and screening separation on the pre-deaminated aluminum mortar liquid by a wet grinder and a screening machine, and separating to obtain aluminum metal sheets and slurry;
s5, transferring the screened slurry to a deep deamination tank for deep deamination;
in the steps S2, S3, S4 and S5, the ammonia leached by the reaction is recycled.
Further, in step S3, the water spraying mechanisms of the plurality of groups disposed on the slurry melting table control the water flow by using the PLC, the mixing time of the secondary aluminum ash and the water in the tundish is not less than 30 minutes, the spray defoaming device is added in the tundish, so that the chemical reaction is stable and stable, the upper water sealing device is added to prevent the gas from overflowing, meanwhile, the temperature probe is arranged in the tundish, when the temperature T1 in the tundish is higher than the reaction technical requirement temperature range Δt, the water spraying flow Q of the plurality of groups of water spraying mechanisms on the slurry melting table is increased, and when the temperature T1 in the tundish is lower than the reaction technical requirement temperature range Δt, the water spraying flow Q of the plurality of groups of water spraying mechanisms on the slurry melting table is reduced.
Further, in the step S3, the reaction time in the pre-deamination tank is 2 hours.
Further, in step S5, a steam distributor is disposed in the deep deamination tank, steam is introduced into the deep deamination tank for heating, the temperature in the deep deamination tank is 95 ℃, the reaction time is 2 hours, a temperature detection probe is installed in the deep deamination tank, the flow of the steam is automatically controlled by a PLC, when the temperature T2 in the deep deamination tank is less than 95 ℃ of the working temperature, the steam introducing amount W is increased, and when the temperature T2 in the deep deamination tank is less than 95 ℃ of the working temperature, the steam introducing amount W is reduced.
In summary, the beneficial effects of the invention are as follows:
1. the invention can realize the high-efficiency deamination of the secondary aluminum ash, effectively improves the contact area of the secondary aluminum ash by combining the secondary aluminum ash with water through atomization, and lays a foundation for the subsequent chemical reaction of the aluminum ash.
2. The aluminum ash and the aluminum hydroxide surface layer wrapping balls generated by the reaction of the aluminum ash and the water in the pre-deamination process are ground by a wet grinding method, the internal aluminum ash components are continuously exposed, the deep deamination measure is added subsequently, the aluminum ash can continuously react with the water, and the deamination efficiency is greatly improved.
3. The method has the advantages that the environmental protection is carried out, the influence on the surrounding ecological environment is reduced, the secondary aluminum ash containing toxic and harmful substances is effectively utilized in resource recovery, and an important role is played for sustainable development of China and establishment of a resource-saving society.
The foregoing description is only an overview of the technical solution of the present invention, and may be implemented according to the content of the specification in order to make the technical means of the present invention more clearly understood, and in order to make the above and other objects, features and advantages of the present invention more clearly understood, the following specific preferred embodiment is given by way of the following detailed description in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic flow diagram of an apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a slurrying device according to an embodiment of the present invention;
FIG. 3 is a schematic view of an ash spreading mechanism according to an embodiment of the invention;
fig. 4 is a process flow diagram of an embodiment of the present invention.
Reference numerals in the drawings illustrate:
1. a secondary aluminum ash powder bin; 2. a slurrying device; 201. an ash spreading mechanism; 211. a guide rail; 212. a vibration mechanism; 213. corrugated plates; 202. a pressure mechanism; 203. a slurry melting table; 3. a tundish; 4. a pre-deamination tank; 5. a wet mill; 6. a sieving machine; 7. deep deamination groove.
Detailed Description
In order that the invention may be more readily understood, a further description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
It should be noted that, as used herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Unless otherwise indicated, the meaning of "a plurality" is two or more.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1 and 2, the high-efficiency deamination treatment equipment for the secondary aluminum ash comprises a secondary aluminum ash powder bin 1, a pre-deamination groove 4, a screening machine 6 and a deep deamination groove 7 which are sequentially arranged, wherein a paddle device and a tundish 3 are additionally arranged between the secondary aluminum ash powder bin 1 and the pre-deamination groove 4, one end of the paddle device is communicated with the secondary aluminum ash powder bin 1, and the other end of the paddle device is communicated with the tundish 3; one end of the tundish 3, which is far away from the paddle device, is communicated with a pre-deamination tank 4; a wet mill 5 is additionally arranged between the pre-deamination tank 4 and the sieving machine 6.
The paddle-melting device comprises an ash spreading mechanism 201, a pressure mechanism 202 and a paddle-melting table which are sequentially arranged; the ash spreading mechanism 201 comprises a guide rail 211, a vibrating mechanism 212 and a corrugated plate 213, wherein two ends of the corrugated plate 213 are slidably connected with the guide rail 211, the vibrating mechanism 212 is fixedly connected below the corrugated plate 213, and a water spraying mechanism is arranged above the paddle changing table.
The ash spreading mechanism 201 and the paddle changing table are provided with a plurality of groups, and the ash spreading mechanism 201 and the paddle changing table are stacked at intervals.
Specifically, in this embodiment, all the slurry melting device 2, the tundish 3, the pre-deamination tank 4, the deep deamination tank 7 and the two-phase separation device are added to effectively separate the gas-liquid phase mixing state, so as to prevent the liquid slurry from entering the gas phase.
Specifically, in this embodiment, the secondary aluminum ash sequentially passes through a secondary aluminum ash powder bin 1, a slurry melting device 2, a tundish 3, a pre-deamination tank 4, a wet mill 5, a sieving machine 6 and a deep deamination tank 7.
As shown in fig. 3 and 4, a method for efficiently deaminizing the secondary aluminum ash is suitable for the above-mentioned apparatus for efficiently deaminizing the secondary aluminum ash, and comprises the following preparation steps:
s1, conveying the secondary aluminum ash of a secondary aluminum ash powder bin 1 into a plurality of corrugated plates 213 which are uniformly distributed up and down in a slurry device 2; the secondary aluminum ash is fine ash obtained by ball milling and screening the raw aluminum ash, and the aim is that the specific surface area of the fine ash after screening is large, the contact reaction between the aluminum ash and water can be increased, and the deamination treatment is more thorough.
S2, secondary aluminum ash enters a box body of a pulping device 2 positioned below a pressure mechanism 202 through an ash spreading mechanism 201, and the secondary aluminum ash is sprayed out under the action of the pressure mechanism 202; the ash spreading mechanism 201 is provided with a vibration mechanism 212, so that the aluminum ash is prevented from caking, and the good porosity of the secondary aluminum ash is maintained.
S3, combining the sprayed secondary aluminum ash particles with water mist sprayed by a plurality of groups of water spraying mechanisms arranged on the slurry melting table 203, forming aluminum ash slurry on a smooth table surface which is obliquely arranged, collecting the aluminum ash slurry through a tundish 3, and conveying the aluminum ash slurry into a pre-deamination tank 4 for pre-deamination; the materials are suspended in water, the water phase is fully contacted with the materials, the aluminum mortar liquid is collected by a tundish 3 and then is conveyed into a pre-deamination tank 4 for pre-deamination, and the reaction time in the pre-deamination process is 2 hours. Until no bubbling was again observed on the surface of the solution through the manual observation hole (i.e., no off-gas was generated). The pre-deamination tank 4 is a closed device, and all the gas generated in the reaction process is led to an ammonia recovery device through a pipeline to carry out ammonia recovery treatment.
Sodium oxide Na in small amount in secondary aluminum ash 2 The O, al metal reacts with water in an exothermic way to generate a great deal of heat, which accelerates the reaction of aluminum nitride AlN in the secondary aluminum ash with water, waste gas ammonia is generated in the reaction, and after the reaction is fully dissolved, the water solution finally removes soluble NaCl, mgCl and KCl. The reaction is as follows:
the main reaction: na (Na) 2 O+H 2 O 2 NaOH+Q heat
AlN+3H 2 O=Al（OH） 3 ↓+NH 3 ↑
Side reaction: 2naoh+al 2 O 3 =2NaAlO 2 +H 2 O
Al+H 2 O→Al（OH） 3 Heat ∈+q.
The water spraying flow rate of the multiple groups of water spraying mechanisms arranged on the slurry melting table 203 is controlled by a PLC, the mixing time of the secondary aluminum ash and water in the tundish 3 is not less than 30 minutes, the spray defoaming device is added in the tundish 3, so that the chemical reaction is stable and stable, the water sealing device is added at the upper part, gas overflow is prevented, meanwhile, a temperature probe is arranged in the water spraying mechanism, when the temperature T1 in the tundish 3 is higher than the reaction technical requirement temperature range delta T, the water spraying flow rate Q of the multiple groups of water spraying mechanisms on the slurry melting table 203 is increased, and when the temperature T1 in the tundish 3 is lower than the reaction technical requirement temperature range delta T, the water spraying flow rate Q of the multiple groups of water spraying mechanisms on the slurry melting table 203 is reduced.
S4, passing the pre-deaminated aluminum mortar liquid through a wet mill 5 and a screening machine 6 for wet milling and screening separation to obtain aluminum metal sheets and slurry;
aluminum hydroxide can be generated in the process of reacting the surfaces of the aluminum ash particles with water, and the generated aluminum hydroxide is wrapped on the surfaces of the aluminum ash particles to prevent the aluminum ash from continuously reacting with the water, so that the deamination efficiency is limited. In the pre-deamination and the deep deamination, wet grinding and sorting processes are added, so that aluminum ash generated by the reaction of aluminum ash and water in the pre-deamination process can be ground off to continuously expose the aluminum ash components in the aluminum ash, the deep deamination measures are added subsequently, the aluminum ash can continuously react with water, and the deamination efficiency is greatly improved.
S5, transferring the screened slurry to a deep deamination tank 7 for deep deamination; the deep deamination tank 7 is internally provided with a steam distributor, steam is introduced into the deep deamination tank 7 for heating, the temperature in the deep deamination tank 7 is 95 ℃, the reaction time is 2 hours, a temperature detection probe is installed in the deep deamination tank 7, the flow of the steam is automatically controlled through a PLC, when the temperature T2 in the deep deamination tank 7 is less than the working temperature of 95 ℃, the steam introducing quantity W is increased, and when the temperature T2 in the deep deamination tank 7 is less than the working temperature of 95 ℃, the steam introducing quantity W is reduced.
In the steps S2, S3, S4 and S5, the ammonia leached by the reaction is recycled.
The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. The utility model provides a high-efficient deamination treatment facility of secondary aluminum ash, including secondary aluminum ash powder storehouse, the deamination groove in advance, screening machine and the degree of depth deamination groove that set gradually, its characterized in that: a paddle device and a tundish are additionally arranged between the secondary aluminum ash powder bin and the pre-deamination tank, one end of the paddle device is communicated with the secondary aluminum ash powder bin, and the other end of the paddle device is communicated with the tundish; one end of the tundish, which is far away from the paddle device, is communicated with the pre-deamination tank; a wet mill is additionally arranged between the pre-deamination tank and the sieving machine.
2. The secondary aluminum ash high-efficiency deamination treatment equipment according to claim 1, wherein: the paddle changing device comprises an ash spreading mechanism, a pressure mechanism and a paddle changing table which are sequentially arranged; the ash spreading mechanism comprises a guide rail, a vibrating mechanism and a corrugated plate, wherein two ends of the corrugated plate are in sliding connection with the guide rail, the vibrating mechanism is fixedly connected to the lower portion of the corrugated plate, and a water spraying mechanism is arranged above the paddle changing table.
3. The secondary aluminum ash high-efficiency deamination treatment equipment according to claim 2, wherein: the ash spreading mechanism and the paddle changing table are arranged in a plurality of groups, and are stacked at intervals.
4. A method for efficiently deaminizing secondary aluminum ash is characterized by comprising the following steps: the high-efficiency deamination treatment equipment suitable for any one of the secondary aluminum ash comprises the following preparation steps:
s1, conveying secondary aluminum ash of a secondary aluminum ash powder bin into a plurality of corrugated plates which are uniformly distributed up and down in a slurry device;
s2, secondary aluminum ash enters a box body of a slurry melting device positioned below the pressure mechanism through an ash spreading mechanism, and the secondary aluminum ash is sprayed out under the action of the pressure mechanism;
s3, combining the sprayed secondary aluminum ash particles with water mist sprayed by a plurality of groups of water spraying mechanisms arranged on a slurry melting table, forming aluminum ash slurry on a smooth table surface which is obliquely arranged, collecting the aluminum ash slurry through a tundish, and conveying the aluminum ash slurry into a pre-deamination tank for pre-deamination;
s4, carrying out wet grinding and screening separation on the pre-deaminated aluminum mortar liquid by a wet grinder and a screening machine, and separating to obtain aluminum metal sheets and slurry;
s5, transferring the screened slurry to a deep deamination tank for deep deamination;
in the steps S2, S3, S4 and S5, the ammonia leached by the reaction is recycled.
5. The method for efficiently deaminizing the secondary aluminum ash according to claim 4, which is characterized in that: in the step S3, the water spraying mechanisms of the plurality of groups are arranged on the slurry melting table, the water spraying flow rate is controlled by the PLC, the mixing time of the secondary aluminum ash and the water in the tundish is not less than 30 minutes, the spray defoaming device is added in the tundish, so that the chemical reaction is stable and stable, the water sealing device is added at the upper part, the gas overflow is prevented, meanwhile, the temperature probe is arranged in the tundish, when the temperature T1 in the tundish is higher than the reaction technical requirement temperature range delta T, the water spraying flow rate Q of the plurality of groups of water spraying mechanisms on the slurry melting table is increased, and when the temperature T1 in the tundish is lower than the reaction technical requirement temperature range delta T, the water spraying flow rate Q of the plurality of groups of water spraying mechanisms on the slurry melting table is reduced.
6. The method for efficiently deaminizing the secondary aluminum ash according to claim 4, which is characterized in that: in the step S3, the reaction time in the pre-deamination tank is 2 hours.
7. The method for efficiently deaminizing the secondary aluminum ash according to claim 4, which is characterized in that: in the step S5, a steam distributor is arranged in the deep deamination tank, steam is introduced into the deep deamination tank for heating, the temperature in the deep deamination tank is 95 ℃, the reaction time is 2 hours, a temperature detection probe is arranged in the deep deamination tank, the flow of the steam is automatically controlled through a PLC, when the temperature T2 in the deep deamination tank is smaller than the working temperature of 95 ℃, the steam introducing quantity W is increased, and when the temperature T2 in the deep deamination tank is smaller than the working temperature of 95 ℃, the steam introducing quantity W is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310002573.7A CN116140339B (en) | 2023-01-03 | 2023-01-03 | High-efficiency deamination treatment equipment and method for secondary aluminum ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310002573.7A CN116140339B (en) | 2023-01-03 | 2023-01-03 | High-efficiency deamination treatment equipment and method for secondary aluminum ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116140339A true CN116140339A (en) | 2023-05-23 |
| CN116140339B CN116140339B (en) | 2023-10-31 |
Family
ID=86350132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310002573.7A Active CN116140339B (en) | 2023-01-03 | 2023-01-03 | High-efficiency deamination treatment equipment and method for secondary aluminum ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116140339B (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB868065A (en) * | 1958-03-26 | 1961-05-17 | Dallow Lambert & Co Ltd | Improvements in and relating to apparatus for the removal of solid particles from gases |
| DE1767046B2 (en) * | 1968-03-23 | 1980-01-31 | Lang, Franz, 6474 Ortenberg | Device for spraying powdery substances or granulates with liquids |
| JPH10216628A (en) * | 1997-02-07 | 1998-08-18 | Ohbayashi Corp | Method for spraying cement mortar |
| RU2150381C1 (en) * | 1999-04-13 | 2000-06-10 | Открытое акционерное общество НПО "Бурение" | Mixing installation for preparation of solutions |
| JP2006206937A (en) * | 2005-01-26 | 2006-08-10 | Furukawa Sky Kk | Apparatus for recovering metal from metal slag and recovering operation method using it |
| JP2010202767A (en) * | 2009-03-03 | 2010-09-16 | Ricoh Co Ltd | Method for producing ink for inkjet |
| CA2792315A1 (en) * | 2010-03-17 | 2011-09-22 | Shandong Tralin Paper Co., Ltd | Circular utilization method in pulping and papermaking processes with straw |
| CN208456629U (en) * | 2018-07-27 | 2019-02-01 | 焦作市泰鑫机械制造有限责任公司 | A kind of booster-type high-effective concrete whitewashing mechanism |
| CN111116075A (en) * | 2020-01-06 | 2020-05-08 | 深圳市华威环保建材有限公司 | Aggregate surface strengthening method and equipment |
| CN210595280U (en) * | 2019-06-25 | 2020-05-22 | 江苏先丰纳米材料科技有限公司 | Device of graphite alkene thick liquids is prepared in succession in industrialization |
| CN112077124A (en) * | 2020-09-15 | 2020-12-15 | 江苏海光金属有限公司 | Treatment method for harmless comprehensive utilization of secondary aluminum ash and preparation method thereof |
| CN212758504U (en) * | 2020-08-03 | 2021-03-23 | 湖北久保地生物有机肥股份有限公司 | Fertilizer prilling granulator |
| CN113477678A (en) * | 2021-07-19 | 2021-10-08 | 山东魏桥长隆环保科技有限公司 | Aluminum ash dry deamination method |
| CN114058855A (en) * | 2021-11-16 | 2022-02-18 | 秦皇岛信宝资源循环科技有限公司 | Harmless treatment process for secondary aluminum ash |
| CN217104028U (en) * | 2021-12-17 | 2022-08-02 | 广东中和生态农业科技有限公司 | Novel aluminum ash deamination equipment |
| CN114832750A (en) * | 2022-05-18 | 2022-08-02 | 沈阳工业大学 | Tower-type cavitation impinging stream reactor |
| CN217251528U (en) * | 2022-04-19 | 2022-08-23 | 巩义市鑫华机械厂 | Secondary aluminum ash hydrolysis gas solid resource utilization device |
| CN217989067U (en) * | 2022-09-08 | 2022-12-09 | 保定味佳调味品有限公司 | Mixing arrangement is used in protein powder production |
| CN218130817U (en) * | 2022-05-16 | 2022-12-27 | 秦皇岛信能能源设备有限公司 | Dust-containing gas pretreatment equipment of ball mill screening machine in aluminum ash aluminum extraction process |
-
2023
- 2023-01-03 CN CN202310002573.7A patent/CN116140339B/en active Active
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB868065A (en) * | 1958-03-26 | 1961-05-17 | Dallow Lambert & Co Ltd | Improvements in and relating to apparatus for the removal of solid particles from gases |
| DE1767046B2 (en) * | 1968-03-23 | 1980-01-31 | Lang, Franz, 6474 Ortenberg | Device for spraying powdery substances or granulates with liquids |
| JPH10216628A (en) * | 1997-02-07 | 1998-08-18 | Ohbayashi Corp | Method for spraying cement mortar |
| RU2150381C1 (en) * | 1999-04-13 | 2000-06-10 | Открытое акционерное общество НПО "Бурение" | Mixing installation for preparation of solutions |
| JP2006206937A (en) * | 2005-01-26 | 2006-08-10 | Furukawa Sky Kk | Apparatus for recovering metal from metal slag and recovering operation method using it |
| JP2010202767A (en) * | 2009-03-03 | 2010-09-16 | Ricoh Co Ltd | Method for producing ink for inkjet |
| CA2792315A1 (en) * | 2010-03-17 | 2011-09-22 | Shandong Tralin Paper Co., Ltd | Circular utilization method in pulping and papermaking processes with straw |
| CN208456629U (en) * | 2018-07-27 | 2019-02-01 | 焦作市泰鑫机械制造有限责任公司 | A kind of booster-type high-effective concrete whitewashing mechanism |
| CN210595280U (en) * | 2019-06-25 | 2020-05-22 | 江苏先丰纳米材料科技有限公司 | Device of graphite alkene thick liquids is prepared in succession in industrialization |
| CN111116075A (en) * | 2020-01-06 | 2020-05-08 | 深圳市华威环保建材有限公司 | Aggregate surface strengthening method and equipment |
| CN212758504U (en) * | 2020-08-03 | 2021-03-23 | 湖北久保地生物有机肥股份有限公司 | Fertilizer prilling granulator |
| CN112077124A (en) * | 2020-09-15 | 2020-12-15 | 江苏海光金属有限公司 | Treatment method for harmless comprehensive utilization of secondary aluminum ash and preparation method thereof |
| CN113477678A (en) * | 2021-07-19 | 2021-10-08 | 山东魏桥长隆环保科技有限公司 | Aluminum ash dry deamination method |
| CN114058855A (en) * | 2021-11-16 | 2022-02-18 | 秦皇岛信宝资源循环科技有限公司 | Harmless treatment process for secondary aluminum ash |
| CN217104028U (en) * | 2021-12-17 | 2022-08-02 | 广东中和生态农业科技有限公司 | Novel aluminum ash deamination equipment |
| CN217251528U (en) * | 2022-04-19 | 2022-08-23 | 巩义市鑫华机械厂 | Secondary aluminum ash hydrolysis gas solid resource utilization device |
| CN218130817U (en) * | 2022-05-16 | 2022-12-27 | 秦皇岛信能能源设备有限公司 | Dust-containing gas pretreatment equipment of ball mill screening machine in aluminum ash aluminum extraction process |
| CN114832750A (en) * | 2022-05-18 | 2022-08-02 | 沈阳工业大学 | Tower-type cavitation impinging stream reactor |
| CN217989067U (en) * | 2022-09-08 | 2022-12-09 | 保定味佳调味品有限公司 | Mixing arrangement is used in protein powder production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116140339B (en) | 2023-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102215938B (en) | Indirect and direct method of sequestering contaminates | |
| CN111185461A (en) | Pulping method of organic dangerous solid waste | |
| CN102180488B (en) | Method for preparing nano lithium carbonate | |
| CN110698087B (en) | Device and method for comprehensively utilizing thermal-state steel slag | |
| CN100575323C (en) | The two-step reaction process of dried preparation acetylene and device | |
| CN101468866A (en) | Normal atmosphere dealkalizing method by sintering | |
| CN204529994U (en) | The treatment unit of waste cathode carbon block in electrolysis of aluminum waste tank lining | |
| CN111167830A (en) | Comprehensive treatment and utilization process of secondary aluminum ash | |
| CN201261720Y (en) | Integrated apparatus for utilizing phosphogypsum decomposition circulating fluid bed residual heat | |
| CN101838130B (en) | Thermal-insulating block and manufacturing process thereof | |
| CN113943116A (en) | Process for producing high-alumina cement by using aluminum ash and fly ash generated after waste incineration | |
| CN112317517A (en) | Pretreatment system and method suitable for co-processing electrolytic aluminum overhaul residues in cement kiln | |
| CN110357463B (en) | Wet processing method for drilling oil-based mud rock debris | |
| CN116140339B (en) | High-efficiency deamination treatment equipment and method for secondary aluminum ash | |
| CN204685646U (en) | The treating apparatus of aluminium electroloysis waste lining | |
| CN206069804U (en) | With the anthracitic system of electrolytic aluminium waste cathode carbon block production high graphite | |
| CN103588220B (en) | A kind of ammonium chloride decomposes soda acid joint process and the system of preparing ammonia and hydrochloric acid | |
| CN103055682B (en) | Solid fuel power station discarded object comprehensive processing technique and equipment thereof | |
| CN115921502B (en) | Efficient disposal method for dioxin and heavy metals based on fly ash calcium-based heat storage | |
| CN116870632A (en) | Dust purifying device and method of ash melting machine | |
| CN102161520B (en) | Device for processing tungsten smelting smoke and ion exchange waste water and processing method thereof | |
| CN102658014A (en) | Emission reduction system of sequestered flue gas CO2 of coal-fired power plant by wet mineralization | |
| CN104176752B (en) | A kind of method of use producing metallurgical-grade aluminum oxide by coal ash | |
| CN205556467U (en) | Dust recovery system of slaked lime production line | |
| KR101902624B1 (en) | Pretreatment method of desulfurization wastewater and system therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |