CN115350770A

CN115350770A - Preparation facilities of high temperature resistant high specific surface active aluminium oxide

Info

Publication number: CN115350770A
Application number: CN202210927708.6A
Authority: CN
Inventors: 赖红; 赖振威; 王博
Original assignee: Pingxiang Kangyu New Energy Technology Co ltd
Current assignee: Pingxiang Kangyu New Energy Technology Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-11-18
Anticipated expiration: 2042-08-03
Also published as: CN115350770B

Abstract

The invention belongs to the technical field of aluminum oxide processing, and particularly relates to a preparation device of high-temperature-resistant high-specific-surface-activity aluminum oxide. According to the invention, the spiral blade rotates to generate downward airflow, the powder in the grinding box is sucked into the powder outlet cylinder, large-particle raw materials still stay in the grinding box for grinding, and the airflow is generated in the grinding box during operation, so that the raw materials are suspended in the grinding box, and the grinding effect of the raw materials is improved.

Description

Preparation facilities of high temperature resistant high specific surface active aluminium oxide

Technical Field

The invention relates to the technical field of alumina processing, in particular to a preparation device of high-temperature-resistant high-specific-surface-activity alumina.

Background

Alumina, formula Al2O3. Is a high-hardness compound, has a melting point of 2054 ℃ and a boiling point of 2980 ℃, can be used for preparing an ionizable ion crystal at a high temperature, and is commonly used for manufacturing refractory materials. Industrial alumina is prepared from bauxite (al2o3.3h2o) and diaspore, and is generally prepared by a chemical method for Al2O3 requiring high purity. Al2O3 has many homogeneous and heterogeneous crystals, more than 10 kinds of Al2O3 are known at present, and 3 kinds of crystal forms are mainly known, namely alpha-Al 2O3, beta-Al 2O3 and gamma-Al 2O3. Wherein the structure has different properties, and is almost completely converted into alpha-Al 2O3 at a high temperature of more than 1300 ℃.

When preparing to aluminium oxide, in order to improve its specific surface area, need grind the crocus operation, during the operation, adopt the mode that the powder was filtered to the bottom more at present, the raw materials is broken because the particle size can't be through filtering the hole, piles up in the surface formation of filter screen easily to influence raw materials grinding and filtration, reduce aluminium oxide's crocus machining efficiency.

Disclosure of Invention

Based on the mode of filtering powder at the bottom, the raw material is crushed, and particles cannot pass through the filtering holes, so that the particles are easy to form accumulation on the surface of the filter screen, the grinding and filtering of the raw material are influenced, and the milling efficiency of alumina is reduced.

The invention provides a preparation device of high-temperature-resistant high-specific-surface-area activated alumina, which comprises a bottom plate, wherein a powder grinding box is arranged above the bottom plate, a powder outlet cylinder is arranged inside the powder grinding box, a side seat is fixedly connected to the outer wall of the upper side of the bottom plate, a cylinder sleeve is fixedly connected to the outer wall of the powder outlet cylinder, a supporting rod is fixedly connected to the outer wall of one side of the cylinder sleeve, the other end of the supporting rod is fixedly connected with the outer wall of the side seat, an annular groove is formed in the outer wall of the powder outlet cylinder, a filter screen is fixedly connected to the inner wall of the annular groove, a circular groove is formed in the top of the powder outlet cylinder, a first motor is fixedly connected to the inner wall of the circular groove, the output end of the first motor is connected with a rotating shaft through a coupler, and a spiral blade is fixedly connected to the outer wall of the rotating shaft.

Preferably, there are last reel and lower reel upper and lower both sides inner wall of crocus box swing joint respectively, go up the equal fixedly connected with ring gear of outer wall of reel and lower reel, and one side outer wall fixedly connected with motor case of side seat, the circular slot has all been seted up to the upper and lower both sides of motor case, the equal fixedly connected with second motor of inner wall of circular slot, the output of second motor has the minor axis through the coupling joint, the other end fixedly connected with driving gear of minor axis, mesh between driving gear and the ring gear.

Preferably, go up a plurality of sill bars of the equal fixedly connected with of one side outer wall of reel and lower reel, a plurality of sill bars are circumference equidistance and distribute, and the inside of sill bar is seted up for the cavity, and the inner wall swing joint of sill bar has the telescopic link, and the outside swing joint of telescopic link has the spring, the both ends of spring respectively with the outer wall of telescopic link and one side inner wall fixed connection of sill bar, and the other end fixedly connected with triangle crushing pole of telescopic link.

Preferably, the inner wall swing joint of going up the reel has a feeding section of thick bamboo, and the below of a feeding section of thick bamboo is provided with the blanking platform, and the shape of blanking platform is round platform form, and the upside outer wall fixedly connected with toper blanking seat of blanking platform, and the upside outer wall fixedly connected with charging box of a feeding section of thick bamboo.

Preferably, the top of charging box is provided with the motor cabinet, the inner wall fixedly connected with third motor of motor cabinet, and there is the bull stick at the output of third motor through the coupling joint, and the bottom fixedly connected with of bull stick divides the flitch, divides and has seted up fan-shaped breach on the flitch, and the outer wall of bull stick is the circumference equidistance and is provided with three puddler.

Preferably, the side platform of two symmetries of upside outer wall fixedly connected with of bottom plate, the upside outer wall fixedly connected with pole setting of side platform, and the solid fixed ring of outer wall fixedly connected with of crocus box, solid fixed ring's both sides are provided with the lug of symmetry, fixed connection between the outer wall of pole setting and the lug, and the equal fixedly connected with of upper end outer wall of two pole settings cover seat, the outer wall fixedly connected with hack lever of cover seat, fixed connection between the outer wall of hack lever and motor cabinet.

Preferably, the below of crocus case is provided with the fan case, fixed connection between the outer wall of fan case and the inner wall of a powder section of thick bamboo, and the inside of fan case is provided with the exhaust fan.

Preferably, the upper side outer wall fixedly connected with toper filter of fan case, the downside outer wall fixedly connected with powder seat that falls of fan case, and the outside of powder seat that falls is provided with two choke plates, and two choke plates table wall are smooth to be the slope and place, two choke plates respectively with the outer wall of powder seat that falls and the inner wall fixed connection of a powder section of thick bamboo.

Preferably, the powder box is fixedly connected to the outer wall of the upper side of the bottom plate, the powder box is fixedly connected to the inner wall of the powder box, the outer wall of the upper side of the lower material plate is in a slope shape, the guide plate is fixedly connected to the outer wall of the upper side of the lower material plate, the rectangular hole is formed in the lower material plate, and the powder outlet pipe is fixedly connected to the inner wall of the rectangular hole.

Preferably, the below of bottom plate is provided with the base, the downside outer wall fixedly connected with supporting leg of base, and the downside outer wall of bottom plate and the upside outer wall of base all set up the rectangular channel of symmetry, fixedly connected with attenuator between two upper and lower rectangular channels, and all seted up the round hole on bottom plate and the base, the inner wall fixedly connected with exhaust pipe of round hole, the other end of exhaust pipe passes down flitch and the downside outer wall fixed connection of powder seat that falls, and the bottom of exhaust pipe is provided with the dust screen.

The beneficial effects of the invention are as follows:

1. according to the aluminum oxide powder grinding machine, due to the arrangement of the bottom plate, the powder grinding box, the powder outlet barrel, the filter screen and the spiral blades, during the time that aluminum oxide raw materials enter the powder grinding box to be subjected to powder grinding operation, the first motor drives the rotating shaft to rotate, so that the spiral blades rotate, and spiral airflow is formed in the powder outlet barrel, so that powder meeting the specification in the powder grinding box is sucked into the powder outlet barrel through the filter screen, and meanwhile during the powder grinding operation, the air enters the powder grinding box to drive the raw materials in the powder grinding box to suspend, so that the powder grinding operation is facilitated; the device utilizes the spiral leaf to rotate and produces decurrent air current, inhales out a powder section of thick bamboo with the powder of crocus incasement, and the raw materials of large granule still stops and carries out the crocus in the incasement, and the crocus incasement produces the air current during the operation, makes the raw materials suspend in the crocus incasement, improves the crocus effect of raw materials.

2. According to the invention, through the arrangement of the upper shaft disc, the lower shaft disc, the bottom rod, the spring and the triangular crushing rod, an aluminum oxide raw material enters the grinding box, the second motor drives the driving gear to rotate, the driving gear is meshed with the toothed ring to drive the upper shaft disc and the lower shaft disc to rotate on the upper side and the lower side of the grinding box, so that the triangular crushing rod on the surface wall of the shaft disc crushes and grinds the raw material in the grinding box, and during the period, the telescopic rod is influenced by the rotating centrifugal force and the reverse acting force after the elastic deformation of the spring and can be continuously stretched; utilize the telescopic link to drive the garrulous pole of triangle and reciprocate flexible during the crocus operation, improve the contact effect of telescopic link and the inside raw materials of crocus case, further improve the efficiency of crocus, adopt the garrulous pole of triangle then to improve the crushing effect to the incasement raw materials, be more convenient for carry out the crocus operation.

3. According to the aluminum oxide powder grinding machine, through the arrangement of the feeding barrel, the blanking table, the feeding box, the rotating rod, the material distributing plate and the stirring rod, aluminum oxide raw materials are added into the feeding box, the third motor drives the rotating rod to rotate, the raw materials enter the feeding barrel from a fan-shaped notch of the material distributing plate, the stirring rod rotates along with the rotating rod to assist blanking, and then the raw materials fall into the lower conical blanking seat to be dispersed and then enter the powder grinding box from the blanking table; the conical blanking seat can disperse and assist in blanking the entering raw materials, so that the raw materials are more uniform when entering the milling box, and the milling efficiency is improved; utilize the fan-shaped breach of pivoted branch flitch, the raw materials of being convenient for can be even gets into a feeding section of thick bamboo, and the unloading of puddler auxiliary material is avoided appearing piling up the unloading that causes and is hindered, improves the smoothness nature that the raw materials got into.

4. According to the invention, through the arrangement of the fan box, the exhaust fan, the conical filter plate, the powder falling seat and the choke plate, during working, the exhaust fan rotates after the fan box is electrified to provide wind power for the powder outlet cylinder, so that the overall suction force of the powder outlet cylinder is increased, meanwhile, gas in the powder outlet cylinder is discharged, the powder and the gas are separated by using the conical filter plate, and the separated powder slides down through the powder falling seat; the exhaust fan is used for assisting the gas in the powder outlet cylinder to be discharged, and meanwhile, the overall suction in the powder outlet cylinder is increased, so that the powder outlet cylinder can better perform the adsorption and filtration operation of powder; the toper filter can separate powder and gas, utilizes the quick unloading of toper inclined plane auxiliary powder simultaneously, and the choke plate plays and increases the air current route, cuts down the effect of inside air current, and the smooth whereabouts that make things convenient for the powder of choke plate table wall.

5. According to the invention, through the arrangement of the powder box, the blanking plate, the guide plate and the base, the powder after the powder-falling seat falls down can directly fall into the powder box, and after the falling powder is observed, the accumulated powder can slide from the blanking plate, and fall from the powder outlet pipe after the path is limited by the guide plate for collection; the powder box is used for preliminarily collecting the falling powder, so that whether the powder meets the processing standard or not can be conveniently observed and tested, and the outer wall of the guide plate is in a slope shape, so that the blanking operation is convenient; the attenuator can play buffering absorbing effect, avoids during the work because each motor makes the device take place to rock with the vibrations that crushing grinding process caused, increases the stability of device, reduces the noise that processing produced simultaneously.

Drawings

FIG. 1 is a schematic cross-sectional view of an apparatus for preparing high temperature-resistant activated alumina with high specific surface area according to the present invention;

FIG. 2 is a schematic structural view of a powder discharging barrel of the apparatus for preparing high temperature resistant high specific surface area activated alumina according to the present invention;

FIG. 3 is a schematic view of the internal structure of a milling box of a device for preparing high temperature resistant high specific surface area activated alumina according to the present invention;

FIG. 4 is a schematic view of a partial structure of an apparatus for preparing high temperature-resistant activated alumina with high specific surface area according to the present invention;

FIG. 5 is a schematic view of a bottom rod structure of a device for preparing high temperature-resistant high specific surface area activated alumina according to the present invention;

FIG. 6 is a schematic view of the structure of a feed box of a device for preparing high temperature resistant high specific surface area activated alumina according to the present invention;

FIG. 7 is a schematic view of a bottom structure of a powder outlet barrel of a device for preparing high temperature-resistant high specific surface area activated alumina according to the present invention;

FIG. 8 is a schematic view of the overall structure of a device for preparing high temperature-resistant high specific surface-active alumina according to the present invention.

In the figure: 1. a base plate; 2. grinding a powder box; 3. a powder outlet cylinder; 4. a side seat; 5. a barrel sleeve; 6. a support bar; 7. filtering with a screen; 8. a first motor; 9. a rotating shaft; 10. helical leaves; 11. an upper shaft disc; 12. a lower shaft disc; 13. a toothed ring; 14. a motor case; 15. a second motor; 16. a driving gear; 17. a bottom bar; 18. a telescopic rod; 19. a spring; 20. a triangular crushing rod; 21. a feeding cylinder; 22. a blanking table; 23. a conical blanking base; 24. a feed box; 25. a motor base; 26. a third motor; 27. a rotating rod; 28. a material distributing plate; 29. a stirring rod; 30. a side table; 31. erecting a rod; 32. a fixing ring; 33. a sleeve seat; 34. a frame bar; 35. a fan case; 36. an exhaust fan; 37. a conical filter plate; 38. a powder falling seat; 39. a choke plate; 40. powder box; 41. a blanking plate; 42. a guide plate; 43. a powder outlet pipe; 44. a base; 45. supporting legs; 46. a damper; 47. an exhaust pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The utility model provides a high temperature resistant high specific surface active alumina's preparation facilities, as shown in figure 1 and figure 2, including bottom plate 1, bottom plate 1's top is provided with crocus case 2, and crocus case 2's inside is provided with out a powder section of thick bamboo 3, there is side seat 4 bottom plate 1's upside outer wall through bolted connection, and the outer wall that goes out a powder section of thick bamboo 3 has barrel casing 5 through bolted connection, there is bracing piece 6 one side outer wall of barrel casing 5 through bolted connection, pass through bolted connection between the other end of bracing piece 6 and the outer wall of side seat 4, the ring channel has been seted up to the outer wall that goes out a powder section of thick bamboo 3, there is filter screen 7 the inner wall of ring channel through bolted connection, and the top of going out a powder section of thick bamboo 3 has seted up the circular slot, there is first motor 8 inner wall through bolted connection of circular slot, there is pivot 9 first motor 8's output through coupling joint, and there is spiral leaf 10 outer wall of pivot 9 through bolted connection.

Further, as shown in fig. 3, 4 and 5, the inner walls of the upper and lower sides of the milling box 2 are rotatably connected with an upper reel 11 and a lower reel 12 through bearings, the outer walls of the upper reel 11 and the lower reel 12 are connected with a toothed ring 13 through bolts, the outer wall of one side of the side base 4 is connected with a motor box 14 through bolts, the upper and lower sides of the motor box 14 are provided with circular grooves, the inner walls of the circular grooves are connected with a second motor 15 through bolts, the output end of the second motor 15 is connected with a short shaft through a coupler, the other end of the short shaft is connected with a driving gear 16 through bolts, and the driving gear 16 is meshed with the toothed ring 13; go up the reel 11 and one side outer wall of lower reel 12 all has a plurality of sill bars 17 through bolted connection, a plurality of sill bars 17 are circumference equidistance and distribute, the inside of sill bar 17 is seted up to the cavity, the inner wall sliding connection of sill bar 17 has telescopic link 18, spring 19 has been cup jointed to telescopic link 18's outside, spring 19's both ends pass through bolted connection with telescopic link 18's outer wall and one side inner wall of sill bar 17 respectively, and telescopic link 18's the other end has triangle broken powder pole 20 through bolted connection, utilize telescopic link 18 to drive triangle broken powder pole 20 and reciprocate flexible during the crocus operation, improve the contact effect of telescopic link 18 and 2 inside raw materials of crocus case, further improve the efficiency of crocus, adopt triangle broken powder pole 20 then to improve the crushing effect to the incasement raw materials, be more convenient for carry out the crocus operation.

Furthermore, as shown in fig. 2, 3 and 6, the inner wall of the upper shaft disc 11 is rotatably connected with a feeding cylinder 21 through a bearing, a blanking table 22 is arranged below the feeding cylinder 21, the blanking table 22 is in a circular truncated cone shape, the outer wall of the upper side of the blanking table 22 is connected with a conical blanking seat 23 through a bolt, the outer wall of the upper side of the feeding cylinder 21 is connected with a feeding box 24 through a bolt, and the conical blanking seat 23 can disperse and assist blanking of the entering raw materials, so that the raw materials are more uniform when entering the milling box 2, and the milling efficiency is improved; the top of charging box 24 is provided with motor cabinet 25, there is third motor 26 motor cabinet 25's inner wall through bolted connection, there is bull stick 27 third motor 26's output through the coupling joint, there is branch flitch 28 bottom of bull stick 27 through bolted connection, the fan-shaped breach has been seted up on the branch flitch 28, and the outer wall of bull stick 27 is the circumference equidistance and is provided with three puddler 29, utilize the fan-shaped breach of pivoted branch flitch 28, the raw materials of being convenient for can even entering feed cylinder 21, the unloading of puddler 29 auxiliary raw materials, avoid appearing piling up the unloading that causes and be obstructed, improve the smoothness nature that the raw materials got into.

Further, as shown in fig. 6 and 8, the upper outer wall of the bottom plate 1 is connected with two symmetrical side tables 30 through bolts, the upper outer wall of the side tables 30 is connected with a vertical rod 31 through bolts, the outer wall of the grinding box 2 is connected with a fixing ring 32 through bolts, two sides of the fixing ring 32 are provided with symmetrical convex blocks, the outer wall of the vertical rod 31 is connected with the convex blocks through bolts, the upper outer walls of the two vertical rods 31 are connected with a sleeve seat 33 through bolts, the outer wall of the sleeve seat 33 is connected with a rack rod 34 through bolts, and the rack rod 34 is connected with the outer wall of the motor seat 25 through bolts.

Furthermore, as shown in fig. 7, a fan box 35 is disposed below the pulverizing box 2, the outer wall of the fan box 35 is connected with the inner wall of the powder outlet cylinder 3 through bolts, and an exhaust fan 36 is disposed inside the fan box 35, so that the exhaust fan 36 is used to assist the gas discharge in the powder outlet cylinder 3, and the overall suction force in the powder outlet cylinder 3 is increased, thereby facilitating the powder adsorption and filtration operation of the powder outlet cylinder 3; the upside outer wall of fan case 35 has toper filter 37 through bolted connection, there is powder seat 38 fan case 35's downside outer wall through bolted connection, and the outside of powder seat 38 that falls is provided with two choke plates 39, two choke plates 39 table walls are the slope smoothly and place, two choke plates 39 pass through bolted connection with the outer wall of powder seat 38 that falls and the inner wall that goes out a powder section of thick bamboo 3 respectively, toper filter 37 can separate powder and gas, utilize the quick unloading of toper inclined plane auxiliary powder simultaneously, choke plate 39 plays and increases the air current route, cut down the effect of inside air current, choke plate 39 table walls are smooth to make things convenient for the whereabouts of powder.

Furthermore, as shown in fig. 8, the outer wall of the upper side of the bottom plate 1 is connected with a powder box 40 through a bolt, the inner wall of the powder box 40 is connected with a blanking plate 41 through a bolt, the outer wall of the upper side of the blanking plate 41 is in a slope shape, the outer wall of the upper side of the blanking plate 41 is connected with a guide plate 42 through a bolt, a rectangular hole is formed in the blanking plate 41, the inner wall of the rectangular hole is connected with a powder outlet pipe 43 through a bolt, the powder box 40 is used for preliminarily collecting falling powder, whether the powder meets the processing standard or not can be conveniently observed, and the outer wall of the guide plate 42 is in a slope shape, so that the blanking operation can be conveniently carried out; the below of bottom plate 1 is provided with base 44, there is supporting leg 45 base 44's downside outer wall through bolted connection, and the rectangular channel of symmetry has all been seted up to bottom plate 1's downside outer wall and base 44's upside outer wall, there is attenuator 46 through bolted connection between two upper and lower rectangular channels, and all seted up the round hole on bottom plate 1 and the base 44, the inner wall of round hole has exhaust pipe 47 through bolted connection, the other end of exhaust pipe 47 passes down flitch 41 and falls powder seat 38's downside outer wall and passes through bolted connection, and exhaust pipe 47's bottom is provided with the dust screen, attenuator 46 can play buffering absorbing effect, avoid during the work because each motor makes the device take place to rock with the vibrations that smash the grinding process and cause, increase the stability of device, reduce the noise that processing produced simultaneously.

The working principle is as follows: alumina raw materials are added into a feeding box 24, a third motor 26 drives a rotating rod 27 to rotate, the raw materials enter a feeding cylinder 21 from a fan-shaped notch of a material distributing plate 28, a stirring rod 29 rotates along with the rotating rod 27 to assist discharging, then the raw materials fall into a conical discharging seat 23 below to be dispersed, and then enter a grinding box 2 from a discharging platform 22, a second motor 15 drives a driving gear 16 to rotate, the driving gear 16 is meshed with a toothed ring 13 to drive an upper shaft disc 11 and a lower shaft disc 12 to rotate on the upper side and the lower side of the grinding box 2, so that the triangular grinding rod 20 on the surface wall of the shaft disc carries out crushing and grinding on the raw materials in the grinding box 2, during the period, a telescopic rod 18 is influenced by a reverse acting force after the rotary centrifugal force and the elastic deformation of a spring 19, ceaseless expansion and contraction can be carried out, during the grinding operation, the rotating shaft 9 is driven to rotate by the first motor 8, thereby the helical blade 10 is rotatory, form the heliciform air current in the play powder section of thick bamboo 3, thereby pass through filter screen 7 with the powder of the interior accord with specification of crocus case 2 and inhale out powder section of thick bamboo 3, simultaneously during the crocus, gaseous entering crocus case 2 drives the raw materials suspension of incasement, be convenient for carry out the crocus operation, in operation, fan box 35 circular telegram back exhaust fan 36 rotates, for providing wind-force in the play powder section of thick bamboo 3, increase the whole suction of a powder section of thick bamboo 3, and simultaneously, the gaseous emission in the play powder section of thick bamboo 3, utilize toper filter 37 to separate powder and gas, the powder after the separation is then through falling powder seat 38 landing, the powder after the whereabouts can directly fall to in powder box 40, observe the back to the powder of whereabouts, accumulational powder can slide from lower feed plate 41, fall from a powder pipe 43 behind the restriction route through deflector 42, collect.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a high temperature resistant high specific surface activity aluminium oxide's preparation facilities, includes bottom plate (1), its characterized in that, the top of bottom plate (1) is provided with crocus case (2), and the inside of crocus case (2) is provided with out a powder section of thick bamboo (3), fixed connection between the upside outer wall fixedly connected with side seat (4) of bottom plate (1), and the outer wall fixedly connected with barrel casing (5) of a powder section of thick bamboo (3), one side outer wall fixedly connected with bracing piece (6) of barrel casing (5), the other end of bracing piece (6) and the outer wall of side seat (4) between fixed connection, the ring channel has been seted up to the outer wall of a powder section of thick bamboo (3), the inner wall fixedly connected with filter screen (7) of ring channel, and the circular slot has been seted up at the top of a powder section of thick bamboo (3), the first motor (8) of inner wall fixedly connected with of circular slot, the output of first motor (8) has pivot (9) through the coupling joint, and the outer wall fixedly connected with spiral leaf (10) of pivot (9).

2. The device for preparing high-temperature-resistant high-specific-surface-area activated alumina according to claim 1, wherein the inner walls of the upper side and the lower side of the milling box (2) are movably connected with an upper reel (11) and a lower reel (12) respectively, the outer walls of the upper reel (11) and the lower reel (12) are fixedly connected with a toothed ring (13), the outer wall of one side of the side base (4) is fixedly connected with a motor box (14), the upper side and the lower side of the motor box (14) are provided with circular grooves, the inner wall of each circular groove is fixedly connected with a second motor (15), the output end of each second motor (15) is connected with a short shaft through a coupler, the other end of each short shaft is fixedly connected with a driving gear (16), and the driving gear (16) is meshed with the toothed ring (13).

3. The preparation facilities of high temperature resistant high specific surface active aluminium oxide according to claim 2, characterized in that, the equal fixedly connected with a plurality of sill bars (17) of one side outer wall of last reel (11) and lower reel (12), a plurality of sill bars (17) are circumference equidistance and distribute, the inside of sill bar (17) is seted up to the cavity, the inner wall swing joint of sill bar (17) has telescopic link (18), the outside swing joint of telescopic link (18) has spring (19), the both ends of spring (19) respectively with the outer wall of telescopic link (18) and one side inner wall fixed connection of sill bar (17), and the other end fixedly connected with triangle disintegrating pole (20) of telescopic link (18).

4. The device for preparing the high-temperature-resistant high-specific-surface-area activated alumina according to claim 2, wherein a feeding cylinder (21) is movably connected to the inner wall of the upper shaft disc (11), a blanking table (22) is arranged below the feeding cylinder (21), the blanking table (22) is in a circular truncated cone shape, a conical blanking seat (23) is fixedly connected to the outer wall of the upper side of the blanking table (22), and a feeding box (24) is fixedly connected to the outer wall of the upper side of the feeding cylinder (21).

5. The device for preparing high-temperature-resistant high-specific-surface-area activated alumina according to claim 4, wherein a motor base (25) is arranged above the charging box (24), a third motor (26) is fixedly connected to the inner wall of the motor base (25), the output end of the third motor (26) is connected with a rotating rod (27) through a coupling, the bottom end of the rotating rod (27) is fixedly connected with a material distributing plate (28), a fan-shaped notch is formed in the material distributing plate (28), and three stirring rods (29) are circumferentially and equidistantly arranged on the outer wall of the rotating rod (27).

6. The device for preparing high-temperature-resistant high-specific-surface-area activated alumina as claimed in claim 5, wherein two symmetrical side tables (30) are fixedly connected to the outer wall of the upper side of the bottom plate (1), vertical rods (31) are fixedly connected to the outer wall of the side tables (30), fixing rings (32) are fixedly connected to the outer wall of the milling box (2), symmetrical convex blocks are arranged on two sides of each fixing ring (32), the outer walls of the vertical rods (31) are fixedly connected to the convex blocks, sleeve seats (33) are fixedly connected to the outer walls of the upper ends of the two vertical rods (31), rack rods (34) are fixedly connected to the outer walls of the sleeve seats (33), and the rack rods (34) are fixedly connected to the outer walls of the motor seats (25).

7. The device for preparing the high-temperature-resistant high-specific-surface-area activated alumina as claimed in claim 1, wherein a fan box (35) is arranged below the milling box (2), the outer wall of the fan box (35) is fixedly connected with the inner wall of the powder outlet barrel (3), and an exhaust fan (36) is arranged inside the fan box (35).

8. The device for preparing the high-temperature-resistant high-specific-surface-area activated alumina according to claim 7, characterized in that the conical filter plate (37) is fixedly connected to the outer wall of the upper side of the fan box (35), the powder falling seat (38) is fixedly connected to the outer wall of the lower side of the fan box (35), two wind-blocking plates (39) are arranged outside the powder falling seat (38), the surface walls of the two wind-blocking plates (39) are smoothly and obliquely arranged, and the two wind-blocking plates (39) are respectively fixedly connected with the outer wall of the powder falling seat (38) and the inner wall of the powder outlet barrel (3).

9. The device for preparing high-temperature-resistant high-specific-surface-area activated alumina according to claim 7, wherein the powder box (40) is fixedly connected to the outer wall of the upper side of the bottom plate (1), the blanking plate (41) is fixedly connected to the inner wall of the powder box (40), the outer wall of the upper side of the blanking plate (41) is in a slope shape, the guide plate (42) is fixedly connected to the outer wall of the upper side of the blanking plate (41), the rectangular hole is formed in the blanking plate (41), and the powder outlet pipe (43) is fixedly connected to the inner wall of the rectangular hole.

10. The device for preparing high-temperature-resistant high-specific-surface-area activated alumina according to claim 9, wherein a base (44) is arranged below the bottom plate (1), supporting legs (45) are fixedly connected to the outer wall of the lower side of the base (44), symmetrical rectangular grooves are formed in the outer wall of the lower side of the bottom plate (1) and the outer wall of the upper side of the base (44), a damper (46) is fixedly connected between the upper rectangular groove and the lower rectangular groove, round holes are formed in the bottom plate (1) and the base (44), an exhaust pipe (47) is fixedly connected to the inner wall of each round hole, the other end of the exhaust pipe (47) penetrates through the lower material discharging plate (41) and is fixedly connected with the outer wall of the powder dropping seat (38), and a dust screen is arranged at the bottom end of the exhaust pipe (47).