CN115178574B - Aluminum ash recycling treatment system - Google Patents
Aluminum ash recycling treatment system Download PDFInfo
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- CN115178574B CN115178574B CN202210719240.1A CN202210719240A CN115178574B CN 115178574 B CN115178574 B CN 115178574B CN 202210719240 A CN202210719240 A CN 202210719240A CN 115178574 B CN115178574 B CN 115178574B
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 134
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 238000004064 recycling Methods 0.000 title claims abstract description 23
- 238000012216 screening Methods 0.000 claims abstract description 77
- 238000001816 cooling Methods 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims description 43
- 239000000428 dust Substances 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000011084 recovery Methods 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 14
- 239000000843 powder Substances 0.000 description 14
- 239000002245 particle Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 238000003723 Smelting Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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- 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
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/38—Stirring or kneading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- 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
-
- 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
- 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 NOT OTHERWISE PROVIDED FOR
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/55—Slag
-
- 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
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Food Science & Technology (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an aluminum ash recycling treatment system which comprises an ash frying machine, an aluminum ash overturning device and a cooling screening device which are sequentially connected, wherein the outside of the cooling screening device is respectively connected with a crushing device, a secondary screening device and a first collecting device; the cooling screening device comprises an inner cylinder (1) and an outer cylinder (2) which are coaxially arranged inside and outside, two ends of the inner cylinder (1) respectively extend to the outer parts of two ends of the outer cylinder (2) and are respectively connected with an aluminum ash overturning device and a first collecting device, a spiral first pushing plate (3) is arranged on the inner side wall of the inner cylinder (1), and a first screening hole (4) and a second screening hole (5) are sequentially formed in the side wall of the inner cylinder (1) along the conveying direction. The invention has the characteristics of good cooling and ball milling effects and high treatment efficiency.
Description
Technical Field
The invention relates to an aluminum ash treatment system, in particular to an aluminum ash recycling treatment system.
Background
The aluminum ash is an impure mixed metal slag produced during aluminum smelting, and because the metal slag still contains a certain amount of aluminum, the aluminum in the metal slag needs to be refined and recycled by a corresponding processing device. The aluminum ash is divided into primary aluminum ash and secondary aluminum ash according to the difference of aluminum content, wherein aluminum slag scraped from the smelting furnace is called primary aluminum ash, the aluminum content reaches 15% -70%, the primary aluminum ash can be sent into the smelting furnace for remelting or applied to other fields after refining, and the secondary aluminum ash is waste after metal aluminum is extracted from the primary aluminum ash and can be used for secondary utilization in other fields.
The present treatment system for primary aluminum ash is as described in patent 201810356014.5, and comprises an ash frying machine system, an automatic aluminum ash turning device, a water spray cooling device, a cooling roller device, a particle screening device and a scraper conveyor, wherein the aluminum ash and aluminum liquid in an aluminum melting furnace are separated by the ash frying machine system when the treatment system is used, the aluminum ash is sent into the automatic aluminum ash turning device and is sent into the cooling roller device, the cooling roller device drives the aluminum ash to rotate and convey, and meanwhile, the water spray cooling device sprays cooling water on the outer wall of the roller, so that the aluminum ash is cooled to below 60 ℃ through the cooperation of the cooling roller system and the cooling roller device. The aluminum ash enters a particle screening device to be sequentially crushed and screened after being cooled, lump materials with the granularity of more than 30mm obtained by crushing are returned to the furnace for smelting, lump materials with the granularity of less than 30mm are sent to a ball mill for ball milling and secondary screening, crushed materials with the granularity of 1-8 mm obtained by screening can be recycled and reused, and powder materials with the granularity of less than 1mm are treated as waste materials; the ball mill and secondary screening apparatus are shown in patent 201910185627.1.
According to the working flow of the treatment system, the current working procedures of cooling, crushing, primary screening, ball milling and secondary screening of the primary aluminum ash are known. Wherein, the primary screening is used for separating aluminum ash with the diameter of more than 30mm and less than 30mm, so that the aluminum ash with the diameter of less than 30mm can enter the ball mill to be made into crushed aggregates with the diameter of less than 8mm, and the secondary screening is used for separating crushed aggregates with the diameter of more than 1mm and powder with the diameter of less than 1mm, so that the residual crushed aggregates are reused after the powder with the diameter of less than 1mm is separated. However, as the aluminum ash is composed of the crushed aggregates and the powder with different external dimensions from below 1mm to above 30mm, under the working procedure, the crushed aggregates and the powder with the external dimensions below 8mm which are originally not required to be ball-milled in the aluminum ash can enter the crushing device and the ball mill together, so that the workload of the crushing device and the ball mill is increased, and the powder with the external dimensions below 1mm can form intervals and buffering between the crushed aggregates and the grinding medium during ball milling, so that the crushing and ball milling effects on the crushed aggregates with the external dimensions above 8mm are reduced.
On the other hand, the current cooling roller device adopts an inclined conveying mode for aluminum ash, namely the aluminum ash moves along the conveying direction in the process of rotating along with the roller through inclined arrangement; and meanwhile, the water spray cooling device is used for spraying and cooling the outer wall of the roller, so that the cooling function of aluminum ash is realized. However, aluminum ash cannot be paved on the inner wall of the roller in the rolling conveying process, but can be accumulated at the bottom of the roller and continuously roll; the aluminum ash in the accumulation center is difficult to contact the inner wall of the roller even if the aluminum ash can continuously change positions in the rolling process, so that the temperature of the aluminum ash in the center is still 100 ℃ when the external aluminum ash leaves the roller and can reach below 60 ℃, and the damage of the aluminum ash to equipment in the subsequent treatment process is increased.
Therefore, the existing primary aluminum ash treatment system has the problems of poor cooling and ball milling effects and low treatment efficiency.
Disclosure of Invention
The invention aims to provide an aluminum ash recycling treatment system. It has the characteristics of good cooling and ball milling effects and high treatment efficiency.
The technical scheme of the invention is as follows: the aluminum ash recycling treatment system comprises an ash frying machine, an aluminum ash overturning device and a cooling screening device which are sequentially connected, wherein the outside of the cooling screening device is respectively connected with a crushing device, a secondary screening device and a first collecting device; the cooling screening device comprises an inner cylinder and an outer cylinder which are coaxially arranged inside and outside, two ends of the inner cylinder respectively extend to the outer parts of two ends of the outer cylinder and are respectively connected with an aluminum ash overturning device and a first collecting device, a spiral first material pushing plate is arranged on the inner side of the side wall of the inner cylinder, a first screening hole and a second screening hole are sequentially formed in the side wall of the inner cylinder along the conveying direction, the aperture of the second screening hole is larger than that of the first screening hole, a spiral second material pushing plate and a spiral third material pushing plate are respectively arranged on the inner side of the side wall of the outer cylinder along the conveying direction, the rotation directions of the second material pushing plate and the third material pushing plate are opposite, the second material pushing plate and the third material pushing plate are mutually separated through an interception plate which is annularly arranged on the inner wall of the outer cylinder, a first discharge hole and a second discharge hole are respectively formed in the side wall of the two ends of the outer side wall of the outer cylinder, the outer connection secondary screening device of the first discharge hole is connected with the outer connection crushing device of the second discharge hole.
In the aforesaid aluminum ash resourceful treatment system, form transition portion between second minute sieve mesh and the first minute sieve mesh, transition portion is located the inboard of interception board, and the aperture of second minute sieve mesh and first minute sieve mesh increases in proper order along direction of delivery, and the aperture of first minute sieve mesh is less than 8mm, and the aperture of second minute sieve mesh is greater than 8mm and is less than 30mm.
In the aforesaid an aluminium ash resourceful treatment system, the urceolus inner wall is the interval distribution and has a plurality of division flitch groups, and every division flitch group is including being a plurality of division flitch that set up along inner tube direction of delivery that the annular distributes, and the both ends and the third of dividing flitch laminate completely, and the height of division flitch is less than the third and pushes away the flitch.
In the aluminum ash recycling treatment system, the first screening holes and the second screening holes are respectively spaced from the side walls of the two ends of the outer cylinder.
In the aluminum ash recycling treatment system, the rotary rollers are connected to the lower parts of the inner cylinder and the outer cylinder, and the rotary rollers below the inner cylinder are positioned at the outer sides of the two ends of the outer cylinder.
In the aluminum ash recycling treatment system, the inner cylinder and the outer cylinder are respectively provided with a cover at the joint of the two ends, the outer part of the cover is nested with the edge of the outer wall of the outer cylinder and is rotationally connected with the edge of the outer wall of the outer cylinder, and the lower end of the cover is provided with a material outlet.
In the aluminum ash recycling treatment system, the outer parts covered at the two ends are respectively provided with a dust removing air inlet pipe and a dust removing air outlet pipe, the dust removing air inlet pipe and the dust removing air outlet pipe are connected with each other through a dust removing air pipe, and the dust removing air pipe is sequentially connected with a dust removing device and a cooling device.
In the foregoing aluminum ash recycling treatment system, the spray water cooling device comprises a first spray pipe, a second spray pipe and a recovery water tank, wherein the first spray pipe is positioned above the outer cylinder, the second spray pipe is positioned above one end of the inner cylinder, which is far away from the aluminum ash turning device, and the recovery water tank is positioned below the inner cylinder and the outer cylinder.
In the above-mentioned aluminum ash recycling treatment system, the end portion of the first pushing plate is located inside the end portion of the outer cylinder far away from one end of the aluminum ash turning device.
Compared with the prior art, the invention has the following characteristics:
(1) According to the invention, through the cooling screening device formed by the inner cylinder and the outer cylinder in a matched manner, after high-temperature aluminum ash enters, the aluminum ash is driven to move towards the crushing device by rolling pushing of the inner cylinder and the first pushing plate; in the moving process of the aluminum ash, the aluminum ash can be screened through the matching of the first screening holes and the second screening holes, so that crushed aggregates smaller than 8mm and powder in the aluminum ash can fall to the front end of the outer cylinder, crushed aggregates larger than 8mm and smaller than 30mm can fall to the rear end of the outer cylinder, the screening effect is achieved, the accumulated aluminum ash is split, the accumulated aluminum ash at the same position can be reduced after the aluminum ash is split, and the cooling effect of the outer cylinder on the aluminum ash is improved; through the cooperation of the dust removal air inlet, the dust removal air outlet and the dust removal air pipe, the aluminum ash in the roller can be simultaneously subjected to dust removal and cooling, so that the water cooling and air cooling are simultaneously carried out on the inner side and the outer side of the roller by the cooperation of the spray water cooling device, and the cooling effect of the cooling screening device on the aluminum ash is further improved;
(2) After the aluminum ash is screened by the cooling screening device, crushed aggregates with the particle size less than 8mm and powder can be discharged through the first discharge port and then connected with the secondary screening device, so that the powder which cannot be utilized in the crushed aggregates is separated by the secondary screening device and then recycled; the crushed aggregates with the particle size of more than 8mm and less than 30mm can be discharged through the second discharge hole and then enter the crushing device, so that the crushed aggregates are crushed to be less than 8mm through the crushing device and the ball milling device in sequence, the recycling of the aluminum crushed aggregates is realized, meanwhile, the reduction of the working efficiency and the ball milling effect caused by the fact that the crushed aggregates with the particle size of less than 8mm enter the crushing and ball milling device together is effectively avoided, and the treatment efficiency and the ball milling effect of the crushing device and the ball milling device are improved; crushed aggregates with the diameter of more than 30mm can move to the end part along with the inner cylinder and enter the first collecting device, so that manufacturers can conveniently recover the crushed aggregates and then smelt the crushed aggregates again; under the cooperation, the aluminum ash can be screened and conveyed in batches before crushing and ball milling, so that the blockage of crushed aggregates with different particle sizes in the aluminum ash to crushing and ball milling procedures is effectively avoided; meanwhile, the screening process can be completed simultaneously with the cooling process, so that compared with the existing treatment device, the single primary screening process can be removed, and the treatment efficiency of aluminum ash is improved;
(3) The diameters of the second screening holes and the first screening holes are sequentially increased along the conveying direction, so that aluminum ash with different particle diameters can also gradually fall along the conveying direction in the screening process, the aluminum ash can be uniformly paved at the bottom of the outer cylinder in the falling process, namely, the uniformity of the aluminum ash at the bottom of the outer cylinder is improved, and the water cooling effect of the aluminum ash is improved; meanwhile, the accumulation phenomenon of the aluminum ash can be further relieved through gradual falling of the aluminum ash in the inner cylinder conveying process, namely, part of the aluminum ash remained in the inner cylinder can be cooled through air cooling, and the aluminum ash falling to the outer cylinder can be cooled through water cooling, so that the cooling effect of the aluminum ash is further improved;
(4) When the crushed aggregates move in the outer cylinder, part of the crushed aggregates can be intercepted through the cooperation of the material distributing plate and the third material pushing plate, namely, the crushed aggregates above the material distributing plate continuously move towards the discharge hole when moving, and the rest crushed aggregates rotate along with the material distributing plate and fall down again after rotating to the middle part of the outer cylinder, so that the accumulation of the crushed aggregates in the outer cylinder is further relieved, and the cooling effect of the crushed aggregates is further improved;
therefore, the invention has the characteristics of good cooling and ball milling effects and high treatment efficiency.
Drawings
FIG. 1 is a diagram showing the connection structure of each device in the present invention;
fig. 2 is a schematic view of the structure of the cooling screen apparatus.
The marks in the drawings are: the device comprises a 1-inner barrel, a 2-outer barrel, a 3-first material pushing plate, a 4-first material dividing hole, a 5-second material dividing hole, a 6-second material pushing plate, a 7-third material pushing plate, an 8-intercepting plate, a 9-first material outlet, a 10-second material outlet, a 11-transition part, a 12-material dividing plate, a 13-rotating roller, a 14-covering part, a 15-material outlet, a 16-first spray pipe, a 17-second spray pipe, a 18-recovery water tank, a 19-dust removal air inlet pipe and a 20-dust removal air outlet pipe.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. The aluminum ash recycling treatment system comprises an ash frying machine, an aluminum ash overturning device and a cooling screening device which are sequentially connected, wherein the outside of the cooling screening device is respectively connected with a crushing device, a secondary screening device and a first collecting device, the crushing device and the secondary screening device are connected with each other through a ball milling device, the end part of the secondary screening device is connected with a second collecting device, a spray water cooling device is arranged outside the cooling screening device, and the ash frying machine, the aluminum ash overturning device, the crushing device, the ball milling device and the secondary screening device are all existing aluminum ash treatment equipment;
the cooling screening device comprises an inner cylinder 1 and an outer cylinder 2 which are coaxially arranged inside and outside, wherein two ends of the inner cylinder 1 respectively extend to the outside of two ends of the outer cylinder 2 and are respectively connected with an aluminum ash overturning device and a first collecting device, the first collecting device is a collecting box positioned at the end part of the inner cylinder 1, and aluminum ash directly falls into the collecting box under the pushing action of the inner cylinder; the inner side of the side wall of the inner cylinder 1 is provided with a first spiral pushing plate 3, a first screening hole 4 and a second screening hole 5 are sequentially arranged on the side wall of the inner cylinder 1 along the conveying direction, the aperture of the second screening hole 5 is larger than that of the first screening hole 4, the inner side of the side wall of the outer cylinder 2 is respectively provided with a second spiral pushing plate 6 and a third spiral pushing plate 7 along the conveying direction, the rotation directions of the second pushing plate 6 and the third spiral pushing plate 7 are opposite, the second pushing plate 6 and the third spiral pushing plate 7 are mutually separated through an interception plate 8 annularly arranged on the inner wall of the outer cylinder 2, the side walls at two ends of the outer cylinder 2 are respectively provided with a first discharging hole 9 and a second discharging hole 10, the outer part of the first discharging hole 9 is connected with a secondary screening device through a conveyor, the outer part of the second discharging hole 10 is connected with a crushing device through the conveyor, and the conveyor can select a spiral conveyor after the materials fall into the spiral conveyor, the spiral conveyor conveys the materials to the blanking hole of the secondary screening device or the crushing device.
The transition part 11 is formed between the second screening holes 5 and the first screening holes 4, the transition part 11 is positioned on the inner side of the interception plate 8 in the vertical direction, the aperture diameters of the second screening holes 5 and the first screening holes 4 are sequentially increased along the conveying direction, the aperture diameter of the first screening holes 4 is smaller than 8mm, and the aperture diameter of the second screening holes 5 is larger than 8mm and smaller than 30mm.
The inner wall of the outer cylinder 2 is provided with a plurality of distributing plate groups at intervals, each distributing plate group comprises a plurality of distributing plates 12 which are distributed in an annular mode and are arranged along the conveying direction of the inner cylinder 1, two ends of each distributing plate 12 are completely attached to the third pushing plate 7, and the height of each distributing plate 12 is smaller than that of the third pushing plate 7.
The first and second sieve holes 4 and 5 are respectively spaced from the side walls of the two ends of the outer cylinder 2.
The lower parts of the inner cylinder 1 and the outer cylinder 2 are respectively connected with a rotary roller 13, and the rotary rollers 13 below the inner cylinder 1 are positioned at the outer sides of the two ends of the outer cylinder 2; when in use, the rotary drum 13 drives the inner cylinder 1 and the outer cylinder 2 to coaxially rotate, and the rotating speed of the inner cylinder 1 is higher than that of the outer cylinder 2.
The inner cylinder 1 and the outer cylinder 2 are respectively provided with a cover 14 at the joint of the two ends, the outer parts of the covers 14 are mutually nested and rotationally connected with the edge of the outer wall of the outer cylinder 2, and the lower end of the cover 14 is provided with a material outlet 15.
The outside that both ends cover 14 is equipped with dust removal wind inlet tube 19 and dust removal wind exit tube 20 that are located the top respectively, is connected through the dust removal tuber pipe interconnect between dust removal wind inlet tube 19 and the dust removal wind exit tube 20, has connected gradually dust collector and cooling device on the dust removal tuber pipe.
The spray water cooling device comprises a first spray pipe 16, a second spray pipe 17 and a recovery water pool 18, wherein the first spray pipe 16 is positioned above the outer cylinder 2, the second spray pipe 17 is positioned above one end of the inner cylinder 1 far away from the aluminum ash overturning device, and the recovery water pool 18 is positioned below the inner cylinder 1 and the outer cylinder 2.
The end part of the first pushing plate 3 is positioned on the inner side of the end part of the outer cylinder 2 at one end far away from the aluminum ash overturning device.
The working principle of the invention is as follows: when the aluminum ash cooling and screening device is used, aluminum ash and aluminum liquid in an aluminum melting furnace are separated by an ash frying machine, and then the separated aluminum ash is sent into an inner cylinder 1 of the cooling and screening device by an aluminum ash overturning device. After the aluminum ash enters, the first pushing plate 3 on the inner cylinder 1 rotates and pushes the aluminum ash to move towards the other end; after the aluminum ash moves to the position of the first sieve separation hole 4, crushed aggregates and powder with the particle size of less than 8mm in the aluminum ash gradually drop into the outer cylinder 2 below from small to large, so that the aluminum ash with the particle size of less than 8mm is separated. The aluminum ash falling to the bottom of the outer cylinder 2 moves towards one end of the first discharge hole 9 along with the rotation of the outer cylinder 2 and the pushing of the second pushing plate 6; and the first spray pipe 16 sprays cooling water to the outer wall of the outer cylinder 2 in the moving process, so that the aluminum ash at the bottom of the outer cylinder is cooled. Because the aluminum ash amount in the second pushing plate 6 is greatly smaller than the aluminum ash amount, and the aluminum ash can be uniformly paved at the bottom of the front end of the outer cylinder 2, the cooling efficiency of the first spraying pipe 16 can be improved when the first spraying pipe is sprayed and cooled.
When the aluminum ash of the inner tube 1 moves to pass through the transition portion 11, only particles of 8mm or more remain in the aluminum ash. When the aluminum ash moves to the second separation holes 5, the second separation holes 5 with the sizes increased in sequence along the conveying direction enable the crushed aggregates to uniformly fall onto the third material pushing plate 7 along the conveying direction, so that accumulation caused by concentrated falling of the crushed aggregates is avoided, and the water cooling effect is improved. When the second material pushing plate 6 and the third material pushing plate 7 are pushed, the crushed aggregates can be separated through the material distributing plate 12, namely, the crushed aggregates lower than the height of the material distributing plate 12 can rotate together with the material distributing plate 12 and move to the middle part of the outer cylinder 2 to fall down again, and the crushed aggregates higher than the height of the material distributing plate 12 are not blocked to continue pushing, so that the separation of the stacked crushed aggregates is realized and the falling time of the crushed aggregates after blocking is prolonged. When the crushed aggregates are moved out of the third pushing plate 7, the crushed aggregates lose pushing and are accumulated at the end part of the inner cylinder 1 and roll along with the inner cylinder 1, and meanwhile, the second spraying pipes 17 spray the outer part of the inner cylinder 1, so that the water cooling of the crushed aggregates is realized. Extruding the previous crushed aggregates when the subsequent crushed aggregates are pushed so that the previous crushed aggregates fall into the first collecting device; i.e. the stay cooling time of the aluminum ash at the end of the inner cylinder 1 is prolonged.
Under the cooperation, the aluminum ash is divided into three parts after being screened by a cooling screening device, wherein the first part is crushed aggregates and powder with the outer diameter of less than 8mm and is discharged from a first discharge hole 9, so that the aluminum ash is sent into a secondary screening device for screening; the second part is crushed aggregates with the outer diameter of more than 8mm below 30mm and is discharged from a second discharge hole 10, so that the crushed aggregates are fed into a crushing device to be crushed and ball-milled in sequence, and recyclable crushed aggregates with the outer diameter of less than 8mm are formed; the third part is aluminum ash with the outer diameter of more than 30mm and is sent into the first collecting device, so that manufacturers can send the aluminum ash into the smelting furnace again for smelting again, and primary screening and recycling of the aluminum ash are realized. After the crushed aggregates with the particle size of less than or equal to 8mm enter a crushing device, the crushing device and a ball milling device respectively crush and ball mill the aluminum crushed aggregates, so as to form crushed aggregates with the particle size of less than or equal to 8mm and powder; then the aluminum ash is sent into a secondary screening device, and the powder with the size less than 1mm in the aluminum ash is separated by the secondary screening device and is respectively collected by a second collecting device. The collected crushed aggregates with the diameter of more than or equal to 1mm and less than 8mm can be used as raw materials in other fields, and powder with the diameter of less than or equal to 1mm can be treated as waste.
Claims (8)
1. An aluminum ash recycling treatment system is characterized in that: the device comprises an ash frying machine, an aluminum ash overturning device and a cooling screening device which are sequentially connected, wherein the outside of the cooling screening device is respectively connected with a crushing device, a secondary screening device and a first collecting device; the cooling screening device comprises an inner cylinder (1) and an outer cylinder (2) which are coaxially arranged inside and outside, wherein two ends of the inner cylinder (1) respectively extend to the outer parts of two ends of the outer cylinder (2) and are respectively connected with an aluminum ash overturning device and a first collecting device, a first spiral material pushing plate (3) is arranged on the inner side of the side wall of the inner cylinder (1), a first screening hole (4) and a second screening hole (5) are sequentially arranged on the side wall of the inner cylinder (1) along the conveying direction, the aperture of the second screening hole (5) is larger than that of the first screening hole (4), a second spiral material pushing plate (6) and a third material pushing plate (7) are respectively arranged on the inner side of the side wall of the outer cylinder (2) along the conveying direction, the rotation directions of the second material pushing plate (6) and the third material pushing plate (7) are opposite, the second material pushing plate (6) and the third material pushing plate (7) are mutually separated through an interception plate (8) which is annularly arranged on the inner wall of the outer cylinder (2), a first discharge port (9) and a second discharge port (10) are respectively arranged on the side walls of two ends of the outer cylinder (2), and the second discharge port (9) is connected with the second crushing device;
form transition portion (11) between second minute sieve mesh (5) and first minute sieve mesh (4), transition portion (11) are located the inboard of interception board (8), and the aperture of second minute sieve mesh (5) and first minute sieve mesh (4) increases along direction of delivery in proper order, and the aperture of first minute sieve mesh (4) is less than 8mm, and the aperture of second minute sieve mesh (5) is greater than 8mm and is less than 30mm.
2. The aluminum ash recycling treatment system according to claim 1, wherein: the inner wall of the outer cylinder (2) is provided with a plurality of distributing plate groups at intervals, each distributing plate group comprises a plurality of distributing plates (12) which are distributed annularly and are arranged along the conveying direction of the inner cylinder (1), two ends of each distributing plate (12) are completely attached to the third pushing plate (7), and the height of each distributing plate (12) is smaller than that of the third pushing plate (7).
3. The aluminum ash recycling treatment system according to claim 1, wherein: the first screening holes (4) and the second screening holes (5) are respectively spaced from the side walls of the two ends of the outer cylinder (2).
4. The aluminum ash recycling treatment system according to claim 1, wherein: the rotary drums (13) are connected to the bottoms of the inner cylinder (1) and the outer cylinder (2), and the rotary drums (13) below the inner cylinder (1) are located outside the two ends of the outer cylinder (2).
5. The aluminum ash recycling treatment system according to claim 1, wherein: the inner cylinder (1) and the outer cylinder (2) are respectively provided with a cover (14) at the joint of the two ends, the outer part of the cover (14) is nested and rotationally connected with the edge of the outer wall of the outer cylinder (2), and the lower end of the cover (14) is provided with a material outlet (15).
6. The aluminum ash recycling treatment system according to claim 5, wherein: the outside that both ends cover (14) is equipped with dust removal wind inlet tube (19) and dust removal wind exit tube (20) respectively, is connected through dust removal tuber pipe interconnect between dust removal wind inlet tube (19) and the dust removal wind exit tube (20), has connected gradually dust collector and cooling device on the dust removal tuber pipe.
7. The aluminum ash recycling treatment system according to claim 1, wherein: the spray water cooling device comprises a first spray pipe (16), a second spray pipe (17) and a recovery water tank (18), wherein the first spray pipe (16) is located above the outer barrel (2), the second spray pipe (17) is located above one end of the inner barrel (1) far away from the aluminum ash overturning device, and the recovery water tank (18) is located below the inner barrel (1) and the outer barrel (2).
8. The aluminum ash recycling treatment system according to claim 1, wherein: the end part of the first pushing plate (3) is positioned on the inner side of the end part of the outer cylinder (2) far away from one end of the aluminum ash overturning device.
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| CN202210719240.1A CN115178574B (en) | 2022-06-23 | 2022-06-23 | Aluminum ash recycling treatment system |
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| CN202210719240.1A CN115178574B (en) | 2022-06-23 | 2022-06-23 | Aluminum ash recycling treatment system |
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| CN214235540U (en) * | 2020-12-16 | 2021-09-21 | 华润环保发展有限公司 | System for secondary aluminum ash is dealt with in coordination to cement kiln |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003035410A (en) * | 2001-07-24 | 2003-02-07 | Kyowa Exeo Corp | Pre-processing method and apparatus for ash melting furnace |
| JP2009056362A (en) * | 2007-08-30 | 2009-03-19 | Nikko Kinzoku Kk | Incinerator ash treatment system |
| CN109834106A (en) * | 2019-01-29 | 2019-06-04 | 江苏华粮机械有限公司 | Garbage as resource intelligent processing system |
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