A drying system and method applied to the production of spherical alumina

Abstract

This invention discloses a drying system and method for the production of spherical alumina, comprising a drying cylinder with a feeding port and a discharging port, a slag discharge port at the bottom of the drying cylinder, and a sealing frame located outside the slag discharge port at the bottom of the drying cylinder, with a sealing plate slidably fitted inside the sealing frame. This invention overcomes the shortcomings of existing technologies, is rationally designed, and combines centrifugal drying to remove most of the moisture with drying to remove residual moisture, reducing the number of material transfer steps and improving the efficiency of material drying. It has high social value and application prospects.

Description

Technical Field

[0001] This invention relates to the field of spherical alumina production technology, and more particularly to a drying system and method for the production and preparation of spherical alumina. Background Technology

[0002] Spherical alumina can be used as a ceramic material. It has good pressing and sintering properties and is often used in high-quality ceramic products. During the production of spherical alumina, the moisture contained inside needs to be dried to ensure the quality of production.

[0003] The existing method for drying spherical alumina requires pre-drying in a spin dryer to separate a large amount of moisture before transferring it to a dryer via equipment or pipelines. This method results in low efficiency in separating moisture and has a certain impact on the production efficiency of spherical alumina.

[0004] Furthermore, impurities can easily enter during transportation, causing product contamination and significantly impacting subsequent use.

[0005] To this end, the inventors designed and developed an integrated drying system and method for spin-drying and drying in the production of spherical alumina, which saves time and improves production efficiency in the moisture separation process during the production of spherical alumina. Summary of the Invention

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A drying system and method for the production and preparation of spherical alumina includes a drying cylinder with a feeding port and a discharging port on the cylinder, a slag discharge port at the bottom of the drying cylinder, and a sealing frame located at the outer edge of the slag discharge port at the bottom of the drying cylinder, with a sealing plate slidably fitted inside the sealing frame.

[0008] The drying cylinder is equipped with a spin-drying filter barrel, which has a filter screen. The spin-drying filter barrel has a feed inlet and a discharge outlet. Both the feed inlet and the discharge outlet are equipped with cover plates, and both the feed inlet and the discharge outlet have locking holes on their inner sides.

[0009] Preferably, the sealing frame has an embedded groove that slides and matches the sealing plate, the sealing plate has a spring groove, the spring groove has a push plate mechanism, and the sealing plate has a guide hole;

[0010] The push plate mechanism includes a pressure block fitted with a spring groove. The bottom of the pressure block is provided with a positioning plate, and the positioning plate is provided with a reset spring connected to the bottom surface of the spring groove. The pressure block is provided with a magnetic strip.

[0011] Preferably, the sealing frame is provided with a magnetic absorbing piece that matches the magnetic attraction of the magnetic strip, and the sealing frame is provided with a guide strip that matches the guidance of the guide hole.

[0012] Preferably, the drying cylinder is provided with a stabilizing ring, and a support frame connected to the end of the spin-drying filter is slidably fitted on the stabilizing ring.

[0013] Preferably, the cover plate has a spring compartment, and the spring compartment is equipped with a locking mechanism;

[0014] The locking mechanism includes a locking plate that is movably fitted with the locking hole. The end of the locking plate is provided with a connecting plate located inside the spring compartment. The connecting plate is provided with a lever located outside the cover plate. The end of the connecting plate is provided with a locking spring that is connected to the inner side of the spring compartment.

[0015] Preferably, the spin-drying filter barrel is provided with a main shaft, the main shaft is provided with stirring blades, and a second motor is provided at the end of the main shaft and fixed to the outer surface of the drying cylinder.

[0016] Preferably, the spin-drying filter barrel is provided with an adjustment mechanism, which includes a push plate for pushing the push plate mechanism, and the push plate is provided with scraping strips.

[0017] Preferably, the spin-drying filter is provided with a first toothed ring, the drying cylinder is provided with a first motor, and the output shaft end of the first motor is provided with a spur gear located inside the drying cylinder, the spur gear meshing with the first toothed ring.

[0018] Preferably, the drying cylinder is provided with a second toothed ring, and the adjusting mechanism further includes a reciprocating screw that is rotatably connected to the push plate. The end of the reciprocating screw is provided with a synchronous gear that meshes with the second toothed ring, and a cleaning scraper is provided on the reciprocating screw.

[0019] Preferably, the cleaning scraper has a balance hole, and a balance bar connected to the push plate is movably fitted inside the balance hole.

[0020] A method for drying materials used in the production of spherical alumina includes the following steps:

[0021] S1: Feeding

[0022] The inlet is opened by opening the cover plate, and then the material is fed into the inside of the spin dryer filter barrel through the feeding port and the inlet. After feeding is finished, the cover plate is closed to seal the inlet.

[0023] S2: Spin-drying process

[0024] Turning on the first motor causes its output shaft to drive the spur gear to rotate, creating a meshing match between the spur gear and the first gear ring. This meshes with the gear, causing the spin-drying filter to rotate inside the drying drum. This allows the material inside the spin-drying filter to be subjected to centrifugal force, resulting in the removal of a large amount of water. The rotation of the spin-drying filter causes the push plate to push the pressure block, which in turn pushes the sealing plate into the inner groove. This allows the magnetic strip and the magnetic suction plate to magnetically adhere to each other, opening the slag discharge port. The pressure block is then pressed into the spring groove without affecting the overall rotation of the spin-drying filter.

[0025] S3: Drying treatment

[0026] Turn on the first motor to reverse the rotation of the spin dryer filter barrel until the push plate pushes the sealing plate out of the inner groove, so that the magnetic strip and the magnetic suction plate are magnetically attached to each other, and the opening of the slag discharge port is blocked and sealed by the sealing plate. Then turn on the external hot air supply pipe to introduce hot air into the drying barrel. Then turn on the second motor, and the output shaft of the second motor drives the main shaft to rotate, so that the stirring blades can stir the material inside the spin dryer filter barrel, so that the hot air can fully contact the material and the remaining moisture in the material can be dried.

[0027] S4: Material feeding

[0028] Turn on the slow speed mode of the first motor to align the discharge port with the outlet port. Then open the cover plates inside the discharge port and the outlet port, and simultaneously control the main shaft of the second motor to rotate continuously, so that the material is discharged and collected through the discharge port and the outlet port in sequence.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. By setting up the spin-drying filter barrel, and utilizing the cooperation between the first gear ring, the first motor and the spur gear, the spin-drying filter barrel can rotate independently inside the drying cylinder. This allows the material inside the spin-drying filter barrel to undergo most of the moisture removal before drying, saving drying time and eliminating the time consumed by material transfer, thus directly improving the efficiency of drying.

[0031] 2. By setting up the sealing plate, and utilizing the cooperation between the sealing frame, the embedded groove, the magnetic plate, the push plate mechanism and the magnetic strip, the adjustment mechanism can open and close the sealing plate as the spin-drying filter barrel rotates, so as to drain the moisture spun out by the material, and keep the internal space of the drying cylinder sealed during the drying stage.

[0032] 3. By using magnetic strips and magnetic suction plates, the state of the slag discharge port will not be affected after the discharge port is opened and closed, thus preventing the position of the sealing plate from shifting during the operation.

[0033] 4. By adjusting the mechanism, the overall rotation of the adjustment mechanism is driven by the spin-drying filter barrel. In conjunction with the meshing between the second gear ring and the synchronous gear, the cleaning scraper acts on the surface of the scraper bar to scrape off the attached debris, keeping the surface of the scraper bar clean. It can also push the water thrown out of the material to the slag discharge port through the scraper bar.

[0034] In summary, this invention overcomes the shortcomings of the prior art, has a reasonable design, and reduces the number of material transfer steps by combining centrifugal drying with drying of residual moisture, thereby improving the processing efficiency of material drying and having high social value and application prospects. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the bottom structure of the drying cylinder in this invention;

[0039] Figure 4 For this Figure 3 Enlarged view of the local structure at point A;

[0040] Figure 5 This is a schematic diagram of the structural assembly of the first gear ring and the spur gear in this invention;

[0041] Figure 6 This is a schematic diagram of the sealing plate in this invention;

[0042] Figure 7 This is a schematic cross-sectional view of the sealing plate in this invention;

[0043] Figure 8 This is a schematic diagram of the structural assembly of the stabilizing ring and the support frame in this invention;

[0044] Figure 9 This is a schematic diagram of the structure of the spin-drying filter barrel in this invention;

[0045] Figure 10 This is a schematic diagram of the cover plate in this invention;

[0046] Figure 11 This is a schematic cross-sectional view of the structure of the cover plate and the feed inlet in this invention;

[0047] Figure 12 This is a schematic diagram of the structural assembly of the main shaft and the spin-drying filter barrel in this invention;

[0048] Figure 13 This is a schematic diagram showing the structural assembly of the second toothed ring and the adjusting mechanism in this invention;

[0049] Figure 14 This is a schematic diagram of the adjustment mechanism in this invention;

[0050] Figure 15 This is a schematic diagram of the cleaning and scraping frame in this invention.

[0051] In the diagram: 1. Drying drum; 101. Feed inlet; 102. Discharge outlet; 103. Slag discharge outlet; 104. Sealing frame; 105. Embedded groove; 106. Guide strip; 107. Magnetic suction plate; 2. Sealing plate; 201. Spring groove; 202. Guide hole; 21. Push plate mechanism; 2101. Pressing block; 2102. Positioning plate; 2103. Return spring; 22. Magnetic strip; 3. Spin-drying filter drum; 301. Feed inlet; 302. Discharge outlet; 303. Locking hole; 31. Filter screen; 32. Cover plate; 321. Spring Spring magazine; 33, locking mechanism; 3301, locking plate; 3302, connecting plate; 3303, lever plate; 3304, locking spring; 4, stabilizing ring; 41, support frame; 5, first gear ring; 6, first motor; 61, spur gear; 7, second gear ring; 8, adjusting mechanism; 801, push plate; 802, scraper bar; 803, reciprocating screw; 8031, synchronous gear; 804, cleaning scraper frame; 8041, balance hole; 805, balance bar; 9, main shaft; 91, stirring blade; 10, second motor. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Example 1

[0054] Reference Figure 1-15A drying system and method for the production and preparation of spherical alumina includes a drying cylinder 1, which has a feeding port 101 and a discharging port 102. The bottom of the drying cylinder 1 has a slag discharge port 103. The bottom of the drying cylinder 1 is provided with a sealing frame 104 located outside the slag discharge port 103. A sealing plate 2 is slidably fitted inside the sealing frame 104. The sealing frame 104 provides a guiding function for the movement of the sealing plate 2.

[0055] The drying drum 1 is equipped with a spin-drying filter 3, which has a filter screen 31. The spin-drying filter 3 has a feed inlet 301 and a discharge outlet 302. Both the feed inlet 301 and the discharge outlet 302 have a cover plate 32. Both the feed inlet 301 and the discharge outlet 302 have a locking hole 303 on their inner sides. The positions of the feed inlet 301 and the discharge outlet 302 need to be aligned with the positions of the feeding inlet 101 and the discharge outlet 102. The positions of the feed inlet 301 and the discharge outlet 302 can be adjusted by rotating them through the interaction between the spur gear 61 and the first gear ring 5. During the feeding process, the material can enter the spin-drying filter 3 through the feeding inlet 101 and the feeding inlet 301 in sequence. During the discharge stage, the material can be discharged from the spin-drying filter 3 through the discharge outlet 302 and the discharge outlet 102 in sequence.

[0056] Specifically, the sealing frame 104 has an embedded groove 105 that slides and matches the sealing plate 2, the sealing plate 2 has a spring groove 201, the spring groove 201 has a push plate mechanism 21, and the sealing plate 2 has a guide hole 202.

[0057] The push plate mechanism 21 includes a pressure block 2101 fitted with the spring groove 201. The bottom of the pressure block 2101 is provided with a positioning plate 2102. The positioning plate 2102 is provided with a reset spring 2103 connected to the bottom surface of the spring groove 201. The pressure block 2101 is provided with a magnetic strip 22. The curvature of the sealing plate 2 needs to be adapted to the curvature of the sealing frame 104. The guide strip 106 provides a balancing effect for the movement of the sealing plate 2 inside the sealing frame 104 and the inner groove 105.

[0058] Specifically, the sealing frame 104 is provided with a magnetic suction piece 107 that magnetically matches the magnetic strip 22, and the sealing frame 104 is provided with a guide strip 106 that matches the guide hole 202. The magnetic suction piece 107 is set at both ends of the sealing frame 104, so that the sealing plate 2 with the push plate mechanism 21 can open and close the slag discharge port 103. The magnetic attraction between the magnetic strip 22 and the magnetic suction piece 107 can ensure that the sealing plate 2 will not move independently within the sealing frame 104. The push plate 801 needs to act on the push plate mechanism 21 to drive the sealing plate 2 to move as a whole. When the magnetic strip 22 and the magnetic suction piece 107 are attached, the push plate mechanism 21 can be pressed down, so that the push plate mechanism 21 is pressed into the spring groove 201, so that the push plate 801 no longer contacts the push plate mechanism 21 that is pushing it, so that the two are separated and the push plate mechanism 21 will not affect the rotation of the push plate 801 following the spin dryer filter 3.

[0059] Specifically, the drying cylinder 1 is equipped with a stabilizing ring 4, and a support frame 41 connected to the end of the spin-drying filter 3 is slidably mounted on the stabilizing ring 4. Through the cooperation between the stabilizing ring 4 and the support frame 41, the drying cylinder 1 can be rotated inside the spin-drying filter 3 by the cooperation of the first motor 6, the spur gear 61 and the first gear ring 5, so as to centrifuge the material inside the spin-drying filter 3 and dry most of the moisture in the material.

[0060] Specifically, a spring compartment 321 is provided on the cover plate 32, and a locking mechanism 33 is provided inside the spring compartment 321;

[0061] The locking mechanism 33 includes a locking plate 3301 that is movably fitted with the locking hole 303. The end of the locking plate 3301 is provided with a connecting plate 3302 located inside the spring chamber 321. The connecting plate 3302 is provided with a lever 3303 located outside the cover plate 32. The end of the connecting plate 3302 is provided with a locking spring 3304 connected to the inner side of the spring chamber 321. Through the setting of the cover plate 32, the locking mechanism 33 locks the cover plate 32 with the feed inlet 301 and the discharge outlet 302, which can easily open the cover plate 32 to complete the feeding and discharging of the inside of the spin dryer filter 3. Pushing the lever 3303 compresses the locking spring 3304, allowing the locking plate 3301 to be pushed out from inside the locking hole 303. The cover plate 32 is opened to seal the feed inlet 301 by using the pivot connection between the cover plate 32 and the feed inlet 301.

[0062] Specifically, the spin dryer filter 3 is equipped with a main shaft 9, and the main shaft 9 is equipped with stirring blades 91. The end of the main shaft 9 is equipped with a second motor 10 fixed to the outer surface of the drying cylinder 1. By setting the stirring blades 91, the second motor 10 drives the main shaft 9 to rotate, so that the stirring blades 91 can push the material to move inside the spin dryer filter 3. By setting the material distribution slope on one side of the stirring blades 91, the efficiency of material stirring is improved. It can also push the material to the discharge port 302 during the feeding stage.

[0063] Specifically, the spin-drying filter barrel 3 is equipped with an adjustment mechanism 8, which includes a push plate 801 for pushing the push plate mechanism 21. The push plate 801 is equipped with a wall scraping strip 802. The push plate 801 is disposed on the outer surface of the spin-drying filter barrel 3. The rotation of the spin-drying filter barrel 3 can drive the push plate 801 to rotate synchronously, so that the push plate 801 can contact the pressure block 2101, so as to push the sealing plate 2 to move through the push plate 801, thereby controlling the opening and closing of the sealing plate 2 to the slag discharge port 103. During the spin-drying stage, the push plate 801 controls the opening of the sealing plate 2 to the slag discharge port 103. During the drying stage, the push plate 801 controls the closing of the sealing plate 2 to the slag discharge port 103.

[0064] Specifically, the spin-drying filter 3 is provided with a first toothed ring 5, and the drying cylinder 1 is provided with a first motor 6. The output shaft end of the first motor 6 is provided with a spur gear 61 located inside the drying cylinder 1. The spur gear 61 meshes with the first toothed ring 5. By rotating the output shaft of the first motor 6, the spur gear 61 is driven to rotate. The first toothed ring 5, which meshes with the spur gear 61, will then drive the spin-drying filter 3 to rotate, so that the material inside the spin-drying filter 3 can be spin-dried.

[0065] Example 2

[0066] Reference Figure 1-15 The difference between this embodiment and embodiment 1 is that the drying cylinder 1 is provided with a second toothed ring 7, and the adjusting mechanism 8 also includes a reciprocating screw 803 rotatably connected to the push plate 801. The end of the reciprocating screw 803 is provided with a synchronous gear 8031 ​​that meshes with the second toothed ring 7. The reciprocating screw 803 is provided with a cleaning scraper 804. As the spin-drying filter 3 drives the adjusting mechanism 8 to rotate as a whole, the synchronous gear 8031 ​​can mesh with the second toothed ring 7, so that the synchronous gear 8031 ​​can drive the reciprocating screw 803 to rotate. The cleaning scraper 804 on the reciprocating screw 803 then moves back and forth on the reciprocating screw 803 to scrape off the surface deposits of the scraper strip 802, keeping the surface of the scraper strip 802 clean.

[0067] Specifically, the cleaning scraper 804 has a balance hole 8041, and a balance bar 805 connected to the push plate 801 is movably fitted inside the balance hole 8041. The balance bar 805 can stabilize the cleaning scraper 804 when it moves laterally.

[0068] Other undescribed structures are described in Example 1.

[0069] Example 3

[0070] A method for drying materials used in the production of spherical alumina includes the following steps:

[0071] S1: Feeding

[0072] The cover plate 32 is used to open the closed feed inlet 301, and then the material is fed into the inside of the spin dryer 3 through the feeding port 101 and the feed inlet 301. After feeding is finished, the cover plate 32 is closed to seal the feed inlet 301.

[0073] S2: Spin-drying process

[0074] Turning on the first motor 6 causes the output shaft of the first motor 6 to drive the spur gear 61 to rotate, so that the spur gear 61 meshes with the first gear ring 5, thereby driving the spin-drying filter 3 to rotate inside the drying cylinder 1. This allows the material inside the spin-drying filter 3 to obtain centrifugal force through the spin-drying filter 3, so that a large amount of water contained in the material can be thrown out. The rotation of the spin-drying filter 3 causes the push plate 801 to push the pressure block 2101, pushing the sealing plate 2 into the inner groove 105, so that the slag discharge port 103 is in the open state. The pressure block 2101 will be pressed into the spring groove 201, without affecting the overall rotation of the spin-drying filter 3.

[0075] S3: Drying treatment

[0076] Turn on the first motor 6 to reverse the rotation of the spin dryer 3 until the push plate 801 pushes the sealing plate 2 out of the inner groove 105, so that the opening of the slag discharge port 103 is blocked and sealed by the sealing plate 2. Then turn on the external hot air supply pipe to introduce hot air into the drying cylinder 1. Then turn on the second motor 10, and the output shaft of the second motor 10 drives the main shaft 9 to rotate, so that the stirring blades 91 can stir the material inside the spin dryer 3, so that the hot air can fully contact the material and the remaining moisture in the material can be dried.

[0077] S4: Material feeding

[0078] Turn on the slow speed mode of the first motor 6 so that the discharge port 302 can be aligned with the discharge port 102. Then open the cover plate 32 inside the discharge port 102 and the discharge port 302, and simultaneously make the second motor 10 control the main shaft 9 to rotate continuously, so that the material is discharged and collected through the discharge port 302 and the discharge port 102 in sequence.

[0079] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0080] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0081] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0082] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drying system for the production of spherical alumina, comprising a drying cylinder (1), characterized in that: The drying cylinder (1) is provided with a feeding port (101) and a discharge port (102). The bottom of the drying cylinder (1) is provided with a slag discharge port (103). The bottom of the drying cylinder (1) is provided with a sealing frame (104) located outside the slag discharge port (103). A sealing plate (2) is slidably fitted inside the sealing frame (104). The drying cylinder (1) is provided with a spin-drying filter barrel (3), and a filter screen (31) is provided on the spin-drying filter barrel (3). The spin-drying filter barrel (3) is provided with a feed inlet (301) and a discharge port (302). Both the feed inlet (301) and the discharge port (302) are provided with cover plates (32), and both the feed inlet (301) and the discharge port (302) are provided with locking holes (303) on their inner sides. The sealing frame (104) has an embedded groove (105) that slides and matches the sealing plate (2), the sealing plate (2) has a spring groove (201), the spring groove (201) has a push plate mechanism (21), and the sealing plate (2) has a guide hole (202). The push plate mechanism (21) includes a pressure block (2101) fitted with the spring groove (201). The bottom of the pressure block (2101) is provided with a positioning plate (2102). The positioning plate (2102) is provided with a reset spring (2103) connected to the bottom surface of the spring groove (201). The pressure block (2101) is provided with a magnetic strip (22). The sealing frame (104) is provided with a magnetic suction piece (107) that magnetically matches the magnetic strip (22), and the sealing frame (104) is provided with a guide strip (106) that matches the guide hole (202). The magnetic suction piece (107) is provided at both ends of the sealing frame (104), so that the sealing plate (2) equipped with the push plate mechanism (21) can open and close the slag discharge port (103). The magnetic attraction between the magnetic strip (22) and the magnetic suction piece (107) can ensure that the sealing plate (2) does not move independently within the sealing frame (104) and needs to be pushed by the push plate (801). The action is applied to the push plate mechanism (21) to drive the sealing plate (2) to move as a whole. When the magnetic strip (22) and the magnetic suction piece (107) are attached, the push plate mechanism (21) can be pressed down, so that the push plate mechanism (21) is pressed into the spring groove (201), so that the push plate (801) no longer contacts the push plate mechanism (21) that pushes it, so that the two are separated and the push plate mechanism (21) will not affect the rotation of the push plate (801) following the spin dryer filter (3). The push plate (801) is set on the outer surface of the spin dryer filter (3) and rotates synchronously with the spin dryer filter (3). The drying cylinder (1) is provided with a stabilizing ring (4), and a support frame (41) connected to the end of the spin-drying filter (3) is slidably fitted on the stabilizing ring (4). A spring compartment (321) is provided on the cover plate (32), and a locking mechanism (33) is provided inside the spring compartment (321); The locking mechanism (33) includes a locking plate (3301) that is movably fitted with the locking hole (303). The end of the locking plate (3301) is provided with a connecting plate (3302) located inside the spring compartment (321). The connecting plate (3302) is provided with a lever (3303) located outside the cover plate (32). The end of the connecting plate (3302) is provided with a locking spring (3304) connected to the inner side of the spring compartment (321). The spin-drying filter barrel (3) is equipped with a main shaft (9), and the main shaft (9) is equipped with stirring blades (91). The end of the main shaft (9) is equipped with a second motor (10) fixed to the outer surface of the drying cylinder (1). The spin-drying filter barrel (3) is provided with an adjustment mechanism (8), which includes a push plate (801) for pushing the push plate mechanism (21), and a wall scraping strip (802) is provided on the push plate (801). The spin-drying filter barrel (3) is provided with a first gear ring (5), and the drying cylinder (1) is provided with a first motor (6). The output shaft end of the first motor (6) is provided with a spur gear (61) located inside the drying cylinder (1). The spur gear (61) meshes with the first gear ring (5).

2. A method for drying materials used in the production of spherical alumina, employing the drying system for the production of spherical alumina as described in claim 1, characterized in that, Includes the following steps: S1: Feeding The inlet (301) is opened by the cover plate (32), and then the material is fed into the inside of the spin dryer (3) through the feeding port (101) and the inlet (301). After feeding is finished, the cover plate (32) is closed to seal the inlet (301). S2: Spin-drying process Turn on the first motor (6), so that the output shaft of the first motor (6) drives the spur gear (61) to rotate, so that the spur gear (61) and the first gear ring (5) mesh and match, so as to drive the spin dryer (3) to rotate inside the drying cylinder (1), so that the material inside the spin dryer (3) can obtain centrifugal force through the spin dryer (3), so that a large amount of water contained in the material can be thrown out. Through the rotation of the spin dryer (3), the push plate (801) pushes the pressure block (2101), pushes the sealing plate (2) into the inner groove (105), so that the slag discharge port (103) is in the open state, and the pressure block (2101) will be pressed into the spring groove (201), which will not affect the overall rotation of the spin dryer (3); S3: Drying treatment Turn on the first motor (6) to reverse the rotation of the spin dryer (3) until the push plate (801) can push the sealing plate (2) out of the inner groove (105), so that the opening of the slag discharge port (103) is blocked and sealed by the sealing plate (2). Then turn on the external hot air supply pipe to introduce hot air into the drying cylinder (1). Then turn on the second motor (10), and the output shaft of the second motor (10) drives the main shaft (9) to rotate, so that the stirring blades (91) can stir the material inside the spin dryer (3), so that the hot air can fully contact the material and the remaining moisture in the material can be dried. S4: Material feeding Turn on the slow mode of the first motor (6) so that the discharge port (302) can be aligned with the discharge port (102). Then open the cover plate (32) inside the discharge port (102) and the discharge port (302), and simultaneously make the second motor (10) control the main shaft (9) to rotate continuously, so that the material is discharged and collected through the discharge port (302) and the discharge port (102) in sequence.

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