Aluminum oxide drying device

Abstract

The invention discloses an aluminum oxide drying device, which relates to the technical field of aluminum oxide drying, and comprises: a shell body, a pair of arc-shaped partitions are arranged in the shell body, the pair of arc-shaped partitions separate the shell body into a preheating chamber and a drying chamber, a feed pipe is connected and arranged on the side wall of the preheating chamber, and a feed valve is arranged on the feed pipe; a material lifting component, the material lifting component is used to transport the materials in the preheating chamber and the drying chamber from bottom to top; a preheating chamber air supply and stirring component; the grinding plate of the invention cooperates with the umbrella plate to break the agglomerated aluminum oxide powder in the meantime, the telescopic cylinder can drive the grinding plate to move in the vertical direction, and then can adjust the gap size between the grinding plate and the umbrella plate, the hot air dried in the drying chamber is transported to the preheating chamber through the air guide pipe, so as to preheat the aluminum oxide powder in the preheating chamber, and prevent the hot air after drying from being directly discharged to the outside to cause waste of heat energy.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum oxide drying, in particular to an aluminum oxide drying device. Background Art

[0002] Alumina is a white amorphous powder, a compound of aluminum and oxygen, insoluble in water, commonly known as bauxite and corundum. It can be used as an abrasive, polishing powder, high-temperature refractory material, etc. It is used to make refractory bricks, crucibles, porcelain, artificial gems, etc. If the humidity of the environment where the alumina powder is stored is too high or the sealing of the packaging is not good, the powder is easy to get damp and agglomerate. Alumina drying equipment is needed to dry the alumina powder containing high moisture.

[0003] When conventional alumina drying equipment is in use, hot air is usually introduced into the device, and then the alumina powder is stirred by a stirring member to achieve the drying effect. However, conventional drying devices cannot break up agglomerated alumina, resulting in insufficient stirring effect. In addition, after drying, the hot air is directly discharged to the outside and cannot be reused, resulting in a waste of heat source. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an alumina drying device, in which a third motor can drive the grinding plate to rotate, so that the grinding plate and the umbrella plate cooperate to break up the agglomerated alumina powder in the meantime, and the telescopic cylinder can drive the grinding plate to move in the vertical direction, so as to adjust the size of the gap between the grinding plate and the umbrella plate, so that the gap gradually decreases during the crushing process, thereby improving the effect of drying the alumina powder, and the hot air dried in the drying chamber is transported to the preheating chamber through the air duct to preheat the alumina powder in the preheating chamber, so as to prevent the hot air after drying from being directly discharged to the outside and causing waste of heat energy.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aluminum oxide drying device, comprising:

[0006] A shell, wherein a pair of arc-shaped partitions are arranged in the shell, and the pair of arc-shaped partitions separate the shell into a preheating chamber and a drying chamber, and a feed pipe is arranged on the side wall of the preheating chamber, and a feed valve is arranged on the feed pipe;

[0007] A material lifting assembly, which is used to transport the materials in the preheating chamber and the drying chamber from bottom to top;

[0008] A preheating chamber air supply and stirring assembly, the preheating chamber air supply and stirring assembly comprises a second motor, a second air collecting hood, a first transmission rod and a plurality of first stirring rods, a plurality of first support rods are arranged at the top of the shell and located above the preheating chamber, a first support plate is arranged at the top of the plurality of first support rods, the second motor is arranged at the top of the first support plate, the second air collecting hood is arranged at the bottom of the first support plate, the output end of the second motor passes through the first support plate and is connected to the first transmission rod, the first transmission rod is rotatably arranged on the second air collecting hood and extends into the preheating chamber, a plurality of the first stirring rods are arranged on the first transmission rod at a portion located in the preheating chamber, the first transmission rod and each of the first stirring rods are both hollow structures and are in communication, a plurality of first air inlet holes are provided at a portion of the first transmission rod located in the second air collecting hood, and a plurality of first exhaust holes are provided on each of the first stirring rods;

[0009] A preheating chamber exhaust assembly, the preheating chamber exhaust assembly comprising a first air collecting hood and an exhaust pipe, the first air collecting hood being arranged on the top of the shell and located above the preheating chamber, the first air collecting hood being communicated with the preheating chamber, the exhaust pipe being communicated with the first air collecting hood, and the first transmission rod being rotatable and penetratingly arranged on the first air collecting hood;

[0010] An air supply and stirring mechanism for a drying chamber, the air supply and stirring mechanism for the drying chamber comprising a third air collecting hood, a rotating lifting assembly, a second transmission rod and a plurality of second stirring rods, the third air collecting hood being arranged on the top of the shell and being located above the drying chamber, the third air collecting hood being connected with an air inlet pipe, the second transmission rod being rotatably arranged on the third air collecting hood and the top wall of the shell and extending into the drying chamber, the rotating lifting assembly being arranged on the top of the shell and being used to drive the second transmission rod to rotate or move vertically, a plurality of the second stirring rods being arranged on a portion of the second transmission rod located in the drying chamber, the second transmission rod and each of the second stirring rods being of a hollow structure and being connected in communication, a plurality of second air inlet holes being provided on a portion of the second transmission rod located in the third air collecting hood, and a plurality of second exhaust holes being provided on each of the second stirring rods;

[0011] A grinding assembly, the grinding assembly comprising a material guide pipe, an umbrella plate and a grinding plate, the material guide pipe is arranged on the inner wall of the top of the shell and is located in the drying chamber, the umbrella plate is arranged between the bottom of the material guide pipe and the side wall of the drying chamber, the shape of the grinding plate matches the umbrella plate, the grinding plate is arranged on the second transmission rod and is located between the umbrella plate and the plurality of second stirring rods;

[0012] An air guide pipe, one end of which is connected to the material guide pipe and the other end of which is connected to the second air collecting hood, and a steam-water separator is arranged on the air guide pipe.

[0013] Preferably, the material lifting assembly includes a first material conveying pipe, a spiral conveying blade, a first motor, a second material conveying pipe, a third material conveying pipe, a fourth material conveying pipe and a fifth material conveying pipe, the first material conveying pipe is vertically arranged in the shell and is located between the preheating chamber and the drying chamber, the first material conveying pipe extends a certain distance outward from the bottom of the shell and a first discharge valve is arranged on the extended portion, a first collecting hopper is arranged below the first transmission rod in the preheating chamber, a second collecting hopper is arranged below the second transmission rod in the drying chamber, one end of the second material conveying pipe is connected to the bottom of the first collecting hopper, and the other end is connected to the first conveying pipe. The material pipe is connected to a position near the bottom, one end of the third material pipe is connected to a position near the top of the first material pipe, and the other end is connected to the preheating chamber, one end of the fourth material pipe is connected to a position near the top of the first material pipe, and the other end is connected to the material guide pipe, one end of the fifth material pipe is connected to the bottom of the second collecting hopper, and the other end is connected to a position near the bottom of the first material pipe, the second material pipe, the third material pipe, the fourth material pipe and the fifth material pipe are all arranged to be inclined downward at a certain angle and are respectively provided with a second discharge valve, a third discharge valve, a fourth discharge valve and a fifth discharge valve.

[0014] Preferably, the rotating lifting assembly includes a telescopic cylinder and a third motor, a plurality of second support rods are arranged at the top of the shell and above the drying chamber, a second support plate is arranged on the top of the plurality of second support rods, the telescopic cylinder is arranged on the top of the second support plate, the telescopic end of the telescopic cylinder passes through the second support plate and is connected to the third motor, and the output end of the third motor is connected to the second transmission rod.

[0015] Preferably, the end of the telescopic end of the telescopic cylinder is connected to a first connecting plate, a plurality of connecting rods are arranged at the bottom of the first connecting plate, a second connecting plate is arranged at the bottom of the plurality of connecting rods, the third motor is arranged on the second connecting plate, the output end of the third motor passes through the second connecting plate and the end is connected to the second transmission rod.

[0016] Preferably, each of the first stirring rod and the second stirring rod is respectively provided with a plurality of arc-shaped shielding blocks, and each of the arc-shaped shielding blocks corresponds to the position of the first exhaust hole or the second exhaust hole.

[0017] The present invention provides an aluminum oxide drying device, which has the following beneficial effects:

[0018] 1. In the present invention, the third motor can drive the grinding plate to rotate, so that the grinding plate and the umbrella plate cooperate to crush the agglomerated aluminum oxide powder during the period, and the telescopic cylinder can drive the grinding plate to move in the vertical direction, and then can adjust the gap between the grinding plate and the umbrella plate, so that the gap gradually decreases during the crushing process, thereby improving the effect of drying the aluminum oxide powder. The hot air dried in the drying chamber is transported to the preheating chamber through the air guide pipe to preheat the aluminum oxide powder in the preheating chamber, so as to prevent the hot air after drying from being directly discharged to the outside and causing waste of heat energy;

[0019] 2. The present invention changes the switching states of the second discharge valve, the third discharge valve, the fourth discharge valve and the fifth discharge valve, and cooperates with the first motor to drive the spiral conveying blade to rotate, so that the aluminum oxide can be transported in the preheating chamber and the drying chamber, and the aluminum oxide powder in the preheating chamber can be transported to the drying chamber, thereby realizing multiple state switching and improving the drying effect; the arc-shaped shielding block can prevent the aluminum oxide powder from entering the hollow part of the first stirring rod or the second stirring rod, so as to improve the drying effect of the aluminum oxide powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 A top view of the present invention;

[0022] Figure 3 For the present invention Figure 2 Sectional view in the AA direction;

[0023] Figure 4 is a top view of the second stirring rod in the present invention;

[0024] Figure 5 for Figure 4 Cross-sectional view along the BB direction.

[0025] In the figure: 1, shell; 1-1, preheating chamber; 1-2, drying chamber; 2, arc partition; 3, first feeding pipe; 4, feeding pipe; 4-1, feeding valve; 5, first discharge valve; 6, first motor; 7, spiral conveying blade; 8, first collecting hopper; 9, second feeding pipe; 9-1, second discharge valve; 10, first air collecting hood; 10-1, exhaust pipe; 11, first support rod; 12, first support plate; 12-1, second air collecting hood; 13, second motor; 14, first transmission rod; 14-1, first air inlet; 15, first stirring rod; 16, first exhaust hole; 17, third feeding pipe; 17-1, third Discharge valve; 18. air guide pipe; 19. steam-water separator; 20. third air collecting hood; 21. air inlet pipe; 22. second support rod; 23. second support plate; 24. telescopic cylinder; 25. first connecting plate; 26. connecting rod; 27. fourth feed pipe; 27-1. fourth discharge valve; 28. second connecting plate; 29. ​​third motor; 30. second transmission rod; 30-1. second air inlet hole; 31. second stirring rod; 32. second exhaust hole; 33. fifth feed pipe; 33-1. fifth discharge valve; 34. arc-shaped shielding block; 35. feed guide pipe; 36. umbrella-shaped plate; 37. grinding plate; 38. second collecting hopper. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-5 The present invention provides a technical solution: an aluminum oxide drying device, comprising:

[0028] A shell 1 is provided with a pair of arc-shaped partitions 2 in the shell 1, the pair of arc-shaped partitions 2 separate the shell 1 into a preheating chamber 1-1 and a drying chamber 1-2, a feed pipe 4 is connected to the side wall of the preheating chamber 1-1, and a feed valve 4-1 is provided on the feed pipe 4;

[0029] A material lifting component, which is used to transport the materials in the preheating chamber 1-1 and the drying chamber 1-2 from bottom to top;

[0030] The preheating chamber air supply and stirring assembly includes a second motor 13, a second air collecting hood 12-1, a first transmission rod 14 and a plurality of first stirring rods 15. A plurality of first support rods 11 are arranged at the top of the shell 1 and above the preheating chamber 1-1. A first support plate 12 is arranged at the top of the plurality of first support rods 11. The second motor 13 is arranged at the top of the first support plate 12. The second air collecting hood 12-1 is arranged at the bottom of the first support plate 12. The output end of the second motor 13 runs through the first support The plate 12 is connected to the first transmission rod 14, the first transmission rod 14 is rotatably arranged on the second air collecting cover 12-1 and extends into the preheating chamber 1-1, a plurality of first stirring rods 15 are arranged on the first transmission rod 14 in the preheating chamber 1-1, the first transmission rod 14 and each of the first stirring rods 15 are hollow structures and are connected, a plurality of first air inlet holes 14-1 are opened on the portion of the first transmission rod 14 in the second air collecting cover 12-1, and a plurality of first exhaust holes 16 are opened on each of the first stirring rods 15;

[0031] The preheating chamber exhaust assembly includes a first air collecting hood 10 and an exhaust pipe 10-1. The first air collecting hood 10 is arranged on the top of the shell 1 and is located above the preheating chamber 1-1. The first air collecting hood 10 is connected to the preheating chamber 1-1, and the exhaust pipe 10-1 is connected to the first air collecting hood 10. The first transmission rod 14 rotates and is arranged on the first air collecting hood 10;

[0032] The drying chamber air supply and stirring mechanism comprises a third air collecting hood 20, a rotating lifting assembly, a second transmission rod 30 and a plurality of second stirring rods 31. The third air collecting hood 20 is arranged at the top of the shell 1 and is located above the drying chamber 1-2. The third air collecting hood 20 is connected with an air inlet pipe 21. The second transmission rod 30 is rotatably arranged on the third air collecting hood 20 and the top wall of the shell 1 and extends into the drying chamber 1-2. The rotating lifting assembly is arranged at the top of the shell 1 to drive the second transmission rod 30 to rotate or move vertically. The plurality of second stirring rods 31 are arranged on the portion of the second transmission rod 30 located in the drying chamber 1-2. The second transmission rod 30 and each second stirring rod 31 are both hollow structures and are connected in communication. The portion of the second transmission rod 30 located in the third air collecting hood 20 is provided with a plurality of second air inlet holes 30-1, and each second stirring rod 31 is provided with a plurality of second exhaust holes 32.

[0033] The grinding assembly includes a material guide tube 35, an umbrella plate 36 and a grinding plate 37. The material guide tube 35 is arranged on the inner wall of the top of the housing 1 and is located in the drying chamber 1-2. The umbrella plate 36 is arranged between the bottom of the material guide tube 35 and the side wall of the drying chamber 1-2. The shape of the grinding plate 37 matches the umbrella plate 36. The grinding plate 37 is arranged on the second transmission rod 30 and is located between the umbrella plate 36 and the plurality of second stirring rods 31.

[0034] The air guide pipe 18 has one end connected to the material guide pipe 35 and the other end connected to the second air collecting hood 12 - 1 . A steam-water separator 19 is provided on the air guide pipe 18 .

[0035] In this embodiment, by opening the feed valve 4-1 on the feed pipe 4, the alumina powder can be transported into the preheating chamber 1-1 in the shell 1, and the material lifting component can transport the alumina powder from the bottom of the preheating chamber 1-1 or the drying chamber 1-2 upward, so that the alumina powder can reciprocate in the preheating chamber 1-1 or the drying chamber 1-2, or transport the powder in the preheating chamber 1-1 to the drying chamber 1-2. A discharge port is provided at the bottom of the material lifting component, and the dried alumina powder can be discharged. The air inlet pipe 21 is connected to the external air supply device The air outlet of the second transmission rod 30 is connected to the external air supply device so that the hot air is transported to the third air collecting hood 20 through the air inlet pipe 21. The hot air can enter the first transmission rod 14 through the multiple second air inlet holes 30-1 opened on the second transmission rod 30, and then enter the multiple second stirring rods 31, and be discharged into the drying chamber 1-2 from the multiple second exhaust holes 32 on each second stirring rod 31, thereby drying the aluminum oxide powder in the drying chamber 1-2. The rotating lifting assembly can drive the second transmission rod 30 to rotate or move vertically. When the second transmission rod 3 0 rotates, the second transmission rod 30 drives the plurality of second stirring rods 31 to rotate, thereby causing the plurality of second stirring rods 31 to stir the alumina powder in the drying chamber 1-2. When the second transmission rod 30 moves in the vertical direction, the second transmission rod 30 drives the connected grinding plate 37 to move in the vertical direction, thereby adjusting the gap between the grinding plate 37 and the umbrella plate 36, so that when the material lifting assembly conveys the alumina powder into the guide pipe 35, the rotating grinding plate 37 cooperates with the umbrella plate 36 to crush the alumina blocks therebetween, thereby lifting the material Drying effect: the hot air after drying the aluminum oxide powder in the drying chamber 1-2 enters the second air collecting hood 12-1 through the air duct 18. The steam-water separator 19 on the air duct 18 is used to remove moisture from the hot air. The hot air in the second air collecting hood 12-1 enters the first transmission rod 14 through multiple first air inlet holes 14-1, and then enters the multiple first stirring rods 15 to preheat the aluminum oxide powder in the preheating chamber 1-1. The preheated hot air enters the first air collecting hood 10 and is discharged from the exhaust pipe 10-1.

[0036] As an embodiment of the present invention, the material lifting assembly includes a first material conveying pipe 3, a spiral conveying blade 7, a first motor 6, a second material conveying pipe 9, a third material conveying pipe 17, a fourth material conveying pipe 27 and a fifth material conveying pipe 33. The first material conveying pipe 3 is vertically arranged in the shell 1 and is located between the preheating chamber 1-1 and the drying chamber 1-2. The first material conveying pipe 3 extends outward from the bottom of the shell 1 for a certain distance and a first discharge valve 5 is arranged on the extended portion. A first collecting hopper 8 is arranged below the first transmission rod 14 in the preheating chamber 1-1, and a second collecting hopper 38 is arranged below the second transmission rod 30 in the drying chamber 1-2. One end of the second material conveying pipe 9 is connected to the bottom of the first collecting hopper 8, and the other end is connected to the first conveying pipe 9. The material pipe 3 is connected to a position near the bottom, one end of the third material pipe 17 is connected to a position near the top of the first material pipe 3, and the other end is connected to the preheating chamber 1-1, one end of the fourth material pipe 27 is connected to a position near the top of the first material pipe 3, and the other end is connected to the guide pipe 35, one end of the fifth material pipe 33 is connected to the bottom of the second collecting hopper 38, and the other end is connected to the position near the bottom of the first material pipe 3, the second material pipe 9, the third material pipe 17, the fourth material pipe 27 and the fifth material pipe 33 are all arranged at a certain angle downward and are respectively provided with a second discharge valve 9-1, a third discharge valve 17-1, a fourth discharge valve 27-1 and a fifth discharge valve 33-1.

[0037] In this embodiment, the first motor 6 arranged on the top of the shell 1 is started, and the first motor 6 can drive the spiral conveying blade 7 to rotate in the first conveying pipe 3, thereby conveying the aluminum oxide powder at the bottom of the first conveying pipe 3 upward. When the second discharge valve 9-1 and the third discharge valve 17-1 are opened, and the first discharge valve 5, the fourth discharge valve 27-1 and the fifth discharge valve 33-1 are closed, the aluminum oxide powder in the preheating chamber 1-1 is reciprocated up and down. When the fourth discharge valve 27-1 and the fifth discharge valve 33-1 are opened, the aluminum oxide powder in the preheating chamber 1-1 is reciprocated up and down. When the first discharge valve 5, the second discharge valve 9-1 and the third discharge valve 17-1 are closed, the aluminum oxide powder in the drying chamber 1-2 is circulated up and down; when the second discharge valve 9-1 and the fourth discharge valve 27-1 are opened and the first discharge valve 5, the third discharge valve 17-1 and the fifth discharge valve 33-1 are closed, the aluminum oxide powder in the preheating chamber 1-1 is transported into the drying chamber 1-2; when the first discharge valve 5 and the fifth discharge valve 33-1 are opened, the aluminum oxide powder in the drying chamber 1-2 can be transported out.

[0038] As an embodiment of the present invention, the rotating lifting assembly includes a telescopic cylinder 24 and a third motor 29. A plurality of second support rods 22 are arranged at the top of the shell 1 and above the drying chamber 1-2. A second support plate 23 is arranged on the top of the plurality of second support rods 22. The telescopic cylinder 24 is arranged on the top of the second support plate 23. The telescopic end of the telescopic cylinder 24 passes through the second support plate 23 and is connected to the third motor 29. The output end of the third motor 29 is connected to the second transmission rod 30.

[0039] In this embodiment, when the telescopic end of the telescopic cylinder 24 is extended or retracted, it can drive the third motor 29 to move in the vertical direction, and the third motor 29 drives the connected second transmission rod 30 to move in the vertical direction, and then the second transmission rod 30 drives the connected grinding plate 37 and multiple second stirring rods 31 to move in the vertical direction. When the third motor 29 is started, the third motor 29 can drive the second transmission rod 30 to rotate, and the second transmission rod 30 can drive the grinding plate 37 and the multiple stirring rods to rotate.

[0040] As an embodiment of the present invention, the end of the telescopic end of the telescopic cylinder 24 is connected to a first connecting plate 25, a plurality of connecting rods 26 are arranged at the bottom of the first connecting plate 25, a second connecting plate 28 is arranged at the bottom of the plurality of connecting rods 26, a third motor 29 is arranged on the second connecting plate 28, and an output end of the third motor 29 passes through the second connecting plate 28 and an end thereof is connected to a second transmission rod 30.

[0041] In this embodiment, when the telescopic end of the telescopic cylinder 24 extends or retracts, the telescopic cylinder 24 drives the connected first connecting plate 25 to move vertically, the first connecting plate 25 drives the connected multiple connecting rods 26 to move, the multiple connecting rods 26 drive the connected second connecting plate 28 to move, and the second connecting plate 28 drives the third motor 29 to move.

[0042] As an embodiment of the present invention, a plurality of arc-shaped shielding blocks 34 are respectively disposed on each of the first stirring rod 15 and the second stirring rod 31 , and each arc-shaped shielding block 34 corresponds to the position of the first exhaust hole 16 or the second exhaust hole 32 .

[0043] In this embodiment, when the first stirring rod 15 or the second stirring rod 31 rotates to stir the aluminum oxide powder, the arc-shaped shielding block 34 can prevent the aluminum oxide powder from entering the hollow portion of the first stirring rod 15 or the second stirring rod 31 to improve the drying effect of the aluminum oxide powder.

[0044] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0045] The working principle and use process of the present invention are as follows: when in use, the first discharge valve 5 on the first feeding pipe 3 is closed, the feed valve 4-1 on the feed pipe 4 is opened, and the aluminum oxide powder is transported to the preheating chamber 1-1. The second discharge valve 9-1 on the second feeding pipe 9 and the fourth discharge valve 27-1 on the fourth feeding pipe 27 are opened, and the aluminum oxide powder in the preheating chamber 1-1 slides from the first collecting hopper 8 to the second feeding pipe 9, and then enters the bottom of the first feeding pipe 3. The first motor 6 arranged on the top of the shell 1 is started, and the first motor 6 drives the spiral conveying blade 7 to rotate. The spiral conveying blade 7 transports the aluminum oxide powder in the preheating chamber 1-1 to the guide pipe 35. The third motor 29 arranged on the second connecting plate 28 is started, and the third motor 29 drives the connected The second transmission rod 30 rotates, and the second transmission rod 30 drives the connected grinding plate 37 and the plurality of second stirring rods 31 to rotate, and the alumina in the guide tube 35 enters the gap between the grinding plate 37 and the umbrella plate 36, and the grinding plate 37 crushes the alumina block and then makes it fall downward, and the plurality of second stirring rods 31 stir the alumina powder, close the second discharge valve 9-1, and then input alumina powder into the preheating chamber 1-1 through the feed pipe 4, close the feed valve 4-1, and convey hot air into the air inlet pipe 21 through the external air supply device, and the hot air is blown from the air inlet pipe 21 to the third air collecting hood 20, and then enters the hollow part of the second transmission rod 30 through the plurality of second air inlet holes 30-1, and then enters the hollow part of the plurality of second stirring rods 31, Then, the aluminum oxide powder in the drying chamber 1-2 is dried through the multiple second exhaust holes 32 opened on each second stirring rod 31. During the drying process, the fourth discharge valve 27-1 and the fifth discharge valve 33-1 can be opened, and the first motor 6 drives the spiral conveying blade 7 to rotate, so that the aluminum oxide powder in the drying chamber 1-2 can reciprocate up and down, so that the grinding plate 37 and the umbrella plate 36 can continuously crush it, so that the aluminum oxide powder is dried thoroughly. In the process of crushing the aluminum oxide agglomerates, the telescopic cylinder 24 arranged on the second support plate 23 can be started, and the telescopic end of the telescopic cylinder 24 drives the third motor 29 to move in the vertical direction, and the third motor 29 drives the second transmission rod 30 to move in the vertical direction. The moving rod 30 drives the grinding plate 37 to move in the vertical direction, and then adjusts the gap between the grinding plate 37 and the umbrella plate 36, so that the gap gradually decreases from large to achieve an ideal breaking effect. The hot air after drying the alumina powder in the drying chamber 1-2 enters the material guide pipe 35, and the hot air in the material guide pipe 35 then enters the air guide pipe 18, and is transported to the second air collecting hood 12-1 by the air guide pipe 18. The steam-water separator 19 on the air guide pipe 18 is used to remove moisture from the hot air. A fan and other equipment can be set on the air guide pipe 18 to increase the flow of hot air. After the hot air enters the second air collecting hood 12-1, it enters the hollow part of the first transmission rod 14 through the multiple first air inlet holes 14-1, and then flows into the multiple first stirring rods 15.The aluminum oxide powder in the preheating chamber 1-1 is preheated and stirred through the multiple first exhaust holes 16 opened on each first stirring rod 15. At this time, the second motor 13 arranged on the first support plate 12 is started, and the second motor 13 drives the first transmission rod 14 to rotate, and the first transmission rod 14 drives the multiple first stirring rods 15 to rotate, thereby preheating and stirring the aluminum oxide powder in the preheating chamber 1-1. The hot air after preheating the aluminum oxide powder in the preheating chamber 1-1 flows into the first air collecting hood 10 and is discharged from the exhaust pipe 10-1. In order to enhance the preheating effect, the second discharge valve 9- 1 and the third discharge valve 17-1, close the first discharge valve 5, the fourth discharge valve 27-1 and the fifth discharge valve 33-1, so that the alumina powder is turned up and down in the preheating chamber 1-1. After the drying of the alumina powder is completed, close the second discharge valve 9-1, open the first discharge valve 5 and the fifth discharge valve 33-1, and the first motor 6 drives the spiral conveying blade 7 to rotate in the opposite direction (so that the alumina powder in the first conveying pipe 3 is conveyed downward), so that the alumina powder in the drying chamber 1-2 and the alumina powder in the first conveying pipe 3 are discharged from the bottom of the first conveying pipe 3.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum oxide drying device, characterized in that: include: A shell (1), wherein a pair of arc-shaped partitions (2) are arranged in the shell (1), and the pair of arc-shaped partitions (2) separate the shell (1) into a preheating chamber (1-1) and a drying chamber (1-2); a feed pipe (4) is arranged on the side wall of the preheating chamber (1-1), and a feed valve (4-1) is arranged on the feed pipe (4); A material lifting component, the material lifting component is used to transport the materials in the preheating chamber (1-1) and the drying chamber (1-2) from bottom to top; A preheating chamber air supply and stirring assembly, the preheating chamber air supply and stirring assembly comprising a second motor (13), a second air collecting hood (12-1), a first transmission rod (14) and a plurality of first stirring rods (15); a plurality of first support rods (11) are arranged at the top of the shell (1) and above the preheating chamber (1-1); a first support plate (12) is arranged at the top of the plurality of first support rods (11); the second motor (13) is arranged at the top of the first support plate (12); the second air collecting hood (12-1) is arranged at the bottom of the first support plate (12); an output end of the second motor (13) passes through the first support plate (12); The plate (12) is connected to a first transmission rod (14), the first transmission rod (14) is rotatably arranged on a second air collecting hood (12-1) and extends into a preheating chamber (1-1), a plurality of the first stirring rods (15) are arranged on a portion of the first transmission rod (14) located in the preheating chamber (1-1), the first transmission rod (14) and each of the first stirring rods (15) are both hollow structures and are in communication with each other, a plurality of first air inlet holes (14-1) are provided on a portion of the first transmission rod (14) located in the second air collecting hood (12-1), and a plurality of first air exhaust holes (16) are provided on each of the first stirring rods (15); A preheating chamber exhaust assembly, the preheating chamber exhaust assembly comprising a first air collecting hood (10) and an exhaust pipe (10-1), the first air collecting hood (10) being arranged on the top of the shell (1) and located above the preheating chamber (1-1), the first air collecting hood (10) being communicated with the preheating chamber (1-1), the exhaust pipe (10-1) being communicated with the first air collecting hood (10), and the first transmission rod (14) being rotatable and penetratingly arranged on the first air collecting hood (10); A drying chamber air supply and stirring mechanism, the drying chamber air supply and stirring mechanism comprising a third air collecting hood (20), a rotating lifting assembly, a second transmission rod (30) and a plurality of second stirring rods (31), the third air collecting hood (20) being arranged on the top of a shell (1) and located above the drying chamber (1-2), the third air collecting hood (20) being connected to an air inlet pipe (21), the second transmission rod (30) being rotatably arranged on the third air collecting hood (20) and the top wall of the shell (1) and extending into the drying chamber (1-2), the rotating lifting assembly A member is arranged at the top of the shell (1) for driving the second transmission rod (30) to rotate or move vertically, a plurality of the second stirring rods (31) are arranged on the portion of the second transmission rod (30) located in the drying chamber (1-2), the second transmission rod (30) and each of the second stirring rods (31) are both hollow structures and are connected, a plurality of second air inlet holes (30-1) are provided on the portion of the second transmission rod (30) located in the third air collecting hood (20), and a plurality of second air exhaust holes (32) are provided on each of the second stirring rods (31); A grinding assembly, the grinding assembly comprising a material guide tube (35), an umbrella-shaped plate (36) and a grinding plate (37); the material guide tube (35) is arranged on the inner wall of the top of the shell (1) and is located in the drying chamber (1-2); the umbrella-shaped plate (36) is arranged between the bottom of the material guide tube (35) and the side wall of the drying chamber (1-2); the shape of the grinding plate (37) matches the umbrella-shaped plate (36); the grinding plate (37) is arranged on the second transmission rod (30) and is located between the umbrella-shaped plate (36) and the plurality of second stirring rods (31); An air guide pipe (18), one end of which is connected to the material guide pipe (35) and the other end of which is connected to the second air collecting hood (12-1). A steam-water separator (19) is provided on the air guide pipe (18).

2. An aluminum oxide drying device according to claim 1, characterized in that: The material lifting assembly comprises a first material conveying pipe (3), a spiral conveying blade (7), a first motor (6), a second material conveying pipe (9), a third material conveying pipe (17), a fourth material conveying pipe (27) and a fifth material conveying pipe (33); the first material conveying pipe (3) is vertically arranged in the shell (1) and is located between the preheating chamber (1-1) and the drying chamber (1-2); the first material conveying pipe (3) extends outward from the bottom of the shell (1) for a certain distance and a first discharge valve (5) is arranged on the extended portion; a first material collecting hopper (8) is arranged below the first transmission rod (14) in the preheating chamber (1-1); a second material collecting hopper (38) is arranged below the second transmission rod (30) in the drying chamber (1-2); one end of the second material conveying pipe (9) is connected to the bottom of the first material collecting hopper (8) and the other end is connected to the bottom of the first material conveying pipe (9). The third feed pipe (17) is connected to the first feed pipe (3) at a position near the top, and the other end is connected to the preheating chamber (1-1). The fourth feed pipe (27) is connected to the first feed pipe (3) at a position near the top, and the other end is connected to the guide pipe (35). The fifth feed pipe (33) is connected to the bottom of the second collecting hopper (38) at one end, and the other end is connected to the first feed pipe (3) at a position near the bottom. The second feed pipe (9), the third feed pipe (17), the fourth feed pipe (27) and the fifth feed pipe (33) are all arranged at a certain angle downward and are respectively provided with a second discharge valve (9-1), a third discharge valve (17-1), a fourth discharge valve (27-1) and a fifth discharge valve (33-1).

3. The aluminum oxide drying device according to claim 1, characterized in that: The rotating lifting assembly includes a telescopic cylinder (24) and a third motor (29); a plurality of second support rods (22) are arranged at the top of the shell (1) and above the drying chamber (1-2); a second support plate (23) is arranged at the top of the plurality of second support rods (22); the telescopic cylinder (24) is arranged at the top of the second support plate (23); the telescopic end of the telescopic cylinder (24) passes through the second support plate (23) and is connected to the third motor (29); the output end of the third motor (29) is connected to the second transmission rod (30).

4. The aluminum oxide drying device according to claim 3, characterized in that: The end of the telescopic end of the telescopic cylinder (24) is connected to a first connecting plate (25), a plurality of connecting rods (26) are arranged at the bottom of the first connecting plate (25), a second connecting plate (28) is arranged at the bottom of the plurality of connecting rods (26), the third motor (29) is arranged on the second connecting plate (28), the output end of the third motor (29) passes through the second connecting plate (28) and the end thereof is connected to the second transmission rod (30).

5. The aluminum oxide drying device according to claim 1, characterized in that: A plurality of arc-shaped shielding blocks (34) are respectively arranged on each of the first stirring rod (15) and the second stirring rod (31), and each of the arc-shaped shielding blocks (34) corresponds to the position of the first exhaust hole (16) or the second exhaust hole (32).

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