High temperature alumina powder production screening and grading cooling device and use method

Abstract

The present invention discloses a high-temperature alumina powder production screening and grading cooling device and a use method, which belongs to the technical field of aluminum powder production, and comprises a shell, wherein the upper surface of the shell is provided with a through hole, the inner wall of the through hole is fixedly mounted with a filter screen, the upper surface of the shell is fixedly mounted with a fan, and the other side wall of the shell is provided with a vibration component; in the present invention, by providing a vibration component and a screening component, as the cam rotates, under the action of a roller, the first lifting rod will move up and down in the partition under the limit of a connecting spring, and under the vibration of the first lifting rod, the second lifting rod will be driven to vibrate through the connecting column, so that the upper screening component also vibrates, and the alumina powder can be screened more finely through multi-stage screening to provide a screening effect, and the unblocking can be performed while screening through the unblocking needle to avoid blockage during screening that affects the screening rate and effect.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum powder production, and in particular relates to a screening, grading and cooling device for the production of high-temperature aluminum oxide powder and a use method thereof. Background Art

[0002] Alumina powder can be divided into three different types. The main uses of different types of aluminum powder are also different. However, the main characteristics of alumina powder are high temperature resistance, corrosion resistance and stable properties. It is often used as an analytical reagent, dehydration of organic solvents, and adsorbent. It can also be used as an abrasive, polishing agent, and raw material and refractory material for smelting aluminum. In the production of alumina powder, it is necessary to screen and cool the alumina powder.

[0003] The screening cooling device currently in use is prone to clogging during use, and when the device is used for a long time, the internal temperature will gradually increase due to the increase in the screening time of the device, which is likely to cause damage to the internal parts of the device. In addition, most of the existing cooling of alumina powder uses a cooling mechanism, which not only increases the cost but is also prone to failure. Therefore, a high-temperature alumina powder production screening and grading cooling device and a use method are provided. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems and to propose a high-temperature alumina powder production screening, grading and cooling device and a method of use.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a high-temperature alumina powder production screening and grading cooling device, comprising a shell, the upper surface of the shell is provided with a through hole, the inner wall of the through hole is fixedly installed with a filter screen, the upper surface of the shell is fixedly installed with a fan, the upper surface of the shell is provided with a feed port, the side wall of the shell is provided with a first discharge pipe and a second discharge pipe, the inner wall of the bottom surface of the shell is fixedly installed with a partition, and the other side wall of the shell is provided with a vibration component;

[0006] The vibration assembly includes a dust cover, a side wall of the dust cover is fixedly connected to the other side wall of the shell, a motor is fixedly mounted on the inner wall of the bottom surface of the dust cover, and a driving rod is fixedly mounted on the output end of the motor.

[0007] As a further description of the above technical solution:

[0008] One end of the driving rod extends to the interior of the shell, and one end of the driving rod is rotatably connected to the side wall of the partition. A cam is fixedly installed on the outer surface of the driving rod. A first lifting rod and a second lifting rod are slidably installed on the inner side wall of the shell, and one end of the first lifting rod and the second lifting rod both extend to the outside of the other side wall of the partition.

[0009] As a further description of the above technical solution:

[0010] A connecting spring is fixedly installed on the lower surface of the first lifting rod and the second lifting rod, a baffle is fixedly installed on one end of the connecting spring, the outer surface of the baffle is fixedly connected to the inner wall of the partition, a roller is fixedly installed on the outer surface of the first lifting rod, a connecting column is fixedly installed on the upper surface of the first lifting rod, one end of the connecting column is fixedly connected to the lower surface of the second lifting rod, a screening assembly is provided at one end of the first lifting rod and a scraper assembly is provided on the upper surface of the second lifting rod.

[0011] As a further description of the above technical solution:

[0012] The screening assembly includes a screen frame, one end of the first lifting rod and the second lifting rod are fixedly mounted with the screen frame, the side wall of the screen frame is slidably connected to the other inner wall of the shell, the lower surface of the screen frame is fixedly mounted with a mesh plate, and the inner wall of the mesh plate is fixedly mounted with a threaded sleeve.

[0013] As a further description of the above technical solution:

[0014] A threaded column is threadedly installed on the inner wall of the threaded sleeve, a support column is fixedly installed on one end of the threaded column, one end of the support column is rotatably connected to the bottom inner wall of the shell, a stirring rod is fixedly installed on the outer surface of the support column, a rotating column is fixedly installed on the other end of the threaded column, one end of the rotating column is rotatably connected to the upper inner wall of the shell, and a rotating component is provided on the outer surface of the rotating column.

[0015] As a further description of the above technical solution:

[0016] A fixing block is fixedly installed on the inner wall of the shell, two fixing plates are fixedly installed on the inner wall of the shell through the fixing block, the threaded column and the rotating column respectively penetrate the two fixing plates, and a clearing needle is fixedly installed on the upper surface of the fixing plate.

[0017] As a further description of the above technical solution:

[0018] The rotating assembly includes a limit plate, one end of the limit plate is fixedly connected to the side wall of the shell, a first rotating rod is rotatably mounted on the lower surface of the limit plate, one end of the first rotating rod extends to the interior of the first discharge pipe, a second sprocket is fixedly mounted on the outer surface of the first rotating rod, a second rotating rod is rotatably mounted on the lower surface of the first discharge pipe, one end of the second rotating rod extends to the interior of the second discharge pipe.

[0019] As a further description of the above technical solution:

[0020] A third sprocket is fixedly mounted on the outer surface of the second rotating rod, a mixing rod is fixedly mounted on the outer surfaces of the first rotating rod and the second rotating rod, two first sprockets are fixedly mounted on the outer surface of the rotating column, a toothed chain is meshedly mounted on the outer surface of the first sprocket, and the second sprocket and the third sprocket are respectively connected to the two first sprockets via the toothed chain.

[0021] As a further description of the above technical solution:

[0022] The scraper assembly includes a support plate and a movable rod, one end of the support plate is fixedly connected to the upper surface of the second lifting rod, a triangular block is fixedly installed on the side wall of the support plate, a sliding groove is provided on the side wall of the triangular block, the movable rod passes through the partition, a scraper is fixedly installed on one end of the movable rod, the upper surface of the scraper is tightly fitted with the lower surface of the filter screen, a fixing ring is fixedly installed on the outer surface of the movable rod, a telescopic spring is fixedly installed on the side wall of the fixing ring, the telescopic spring is sleeved on the outer surface of the movable rod, and one end of the telescopic spring is fixedly connected to the side wall of the partition.

[0023] The present invention also discloses a method for using a high-temperature alumina powder production screening and grading cooling device, comprising the following steps:

[0024] S1. Pour the alumina powder to be screened into the shell from the feed port. At this time, the alumina powder will fall into the uppermost screening assembly. The motor is used to drive the cam to rotate through the driving rod. As the cam rotates, the first lifting rod will move up and down in the partition under the limit of the connecting spring under the action of the roller. At this time, the first lifting rod will drive the screening assembly below the shell to vibrate. Under the vibration of the first lifting rod, the second lifting rod will be driven to vibrate through the connecting column, so that the upper screening assembly will also vibrate;

[0025] S2. The larger aluminum powder particles in the aluminum oxide powder above the mesh plate will flow into the first discharge pipe for storage under the action of the screen frame. The aluminum oxide powder screened to the mesh plate below will flow the medium-sized aluminum powder into the second discharge pipe under the action of the screen frame. The remaining finest aluminum powder will fall on the bottom inner wall of the shell. During the up and down vibration of the two screening components, the dredging needles installed on the upper surface of the fixed plate will dredge the mesh holes on the mesh plate.

[0026] S3. When the lower screen plate vibrates, the threaded sleeve on the inner wall of the screen plate will move up and down on the outer surface of the threaded column. At this time, the threaded column will respectively mobilize the support column and the rotating column to rotate back and forth. The stirring rod on the outer surface of the support column will stir the aluminum powder on the bottom surface of the shell. At the same time, the rotating column will drive the two first toothed sprockets to rotate, so that the second toothed sprocket and the third toothed sprocket will rotate respectively under the action of the toothed chain. With the rotation of the second toothed sprocket and the third toothed sprocket, the first rotating rod and the second rotating rod will be driven to rotate respectively. At this time, the mixing rods on the outer surfaces of the first rotating rod and the second rotating rod will stir the aluminum powder in the first discharging pipe and the second discharging pipe;

[0027] S4. The heat generated by the aluminum powder in the shell is dissipated through the operation of the fan. However, while the fan is dissipating heat, some dust will be filtered by the filter and attached to the lower surface of the filter. When the second lifting rod vibrates, it will drive the support plate to move. At this time, the triangular block will also move synchronously, so that the movable rod will move back and forth under the action of the pulley under the action of the telescopic spring, thereby driving the scraper to clean the dust on the lower surface of the filter.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. In the present invention, a vibrating assembly and a screening assembly are provided, and the alumina powder to be screened is poured into the shell from the feed port. At this time, the alumina powder will fall into the uppermost screening assembly, and the motor is used to drive the cam to rotate through the driving rod. As the cam rotates, the first lifting rod is moved up and down in the partition under the limit of the connecting spring under the action of the roller. At this time, the first lifting rod drives the screening assembly below the shell to vibrate, and the vibration of the first lifting rod drives the second lifting rod to vibrate through the connecting column, so that the upper screening assembly The subassemblies also vibrate. At this time, the larger particles of aluminum powder in the alumina powder above the mesh plate will flow to the first discharge pipe for storage under the action of the screen frame, and the alumina powder screened to the mesh plate below will flow the medium-sized aluminum powder to the second discharge pipe under the action of the screen frame. The remaining finest aluminum powder falls on the bottom inner wall of the shell. Through multi-stage screening, the alumina powder can be screened more finely to provide a screening effect, and the unblocking needle can be used to dredge while screening to avoid blockage during screening and affect the screening rate and effect.

[0030] 2. In the present invention, by providing a rotating assembly, the rotating column will drive the two first toothed sprockets to rotate, thereby respectively rotating the second toothed sprocket and the third toothed sprocket under the action of the toothed chain, and the rotation of the second toothed sprocket and the third toothed sprocket will respectively drive the first rotating rod and the second rotating rod to rotate. At this time, the mixing rods on the outer surfaces of the first rotating rod and the second rotating rod will stir the aluminum powder in the first discharging pipe and the second discharging pipe. Collecting the aluminum powder in a centralized manner can avoid the collection of the aluminum powder before it is cooled and affecting its quality. At the same time, stirring the aluminum powder when it is concentrated can avoid the internal temperature of the aluminum powder being too high, which affects the cooling efficiency.

[0031] 3. In the present invention, a scraper assembly is provided, and the heat generated by the aluminum powder in the shell is dissipated through the operation of the fan. However, while the fan is dissipating heat, some dust will be filtered out by the filter and attached to the lower surface of the filter. When the second lifting rod vibrates, it will drive the support plate to move. At this time, the triangular block will also move synchronously, so that the movable rod will move back and forth under the action of the telescopic spring under the action of the pulley, and then drive the scraper to clean the dust on the lower surface of the filter. The temperature inside the device is lowered by the fan to avoid damage to internal components due to excessive temperature of the aluminum powder. At the same time, while cooling the device, it can avoid the hardness of the dust on the heat dissipation of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of the screening, grading and cooling device for the production of high-temperature alumina powder.

[0033] Figure 2 Schematic diagram of the exploded structure of the screening, grading and cooling device for the production of high-temperature alumina powder.

[0034] Figure 3 Schematic diagram of the internal structure of the screening and grading cooling device for high-temperature alumina powder production.

[0035] Figure 4 This is a schematic diagram of the enlarged structure of point A in the screening and grading cooling device for the production of high-temperature alumina powder.

[0036] Figure 5 This is a schematic diagram of the enlarged structure of point B in the screening and grading cooling device for the production of high-temperature alumina powder.

[0037] Figure 6 Schematic diagram of the exploded structure of the screening components in the screening and grading cooling device for high-temperature alumina powder production.

[0038] Figure 7 Schematic diagram of the exploded structure of the scraper assembly in the screening and grading cooling device for high-temperature alumina powder production.

[0039] Legend:

[0040] 1. Shell; 2. Feed inlet; 3. First discharge pipe; 4. Second discharge pipe; 5. Fan; 6. Filter; 7. Partition; 8. Vibration assembly; 81. Dust cover; 82. Motor; 83. Drive rod; 84. Cam; 85. First lifting rod; 86. Roller; 87. Connecting column; 88. Baffle; 89. Connecting spring; 810. Second lifting rod; 9. Scraper assembly; 91. Support plate; 92. Movable rod; 93. Scraper; 94. Triangle block; 95. Fixed ring; 96. Telescopic spring; 97. Anchor Mounting plate; 98, pulley; 99, slide; 10, screening assembly; 101, screen frame; 102, mesh plate; 103, threaded sleeve; 11, support column; 12, stirring rod; 13, threaded column; 14, rotating column; 15, rotating assembly; 151, first toothed sprocket; 152, toothed chain; 153, limit plate; 154, first rotating rod; 155, second toothed sprocket; 156, mixing rod; 157, second rotating rod; 158, third toothed sprocket; 16, fixing block; 17, fixing plate; 18, unblocking needle. DETAILED DESCRIPTION

[0041] 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.

[0042] See also Figure 1-7 The present invention provides a technical solution: a high-temperature alumina powder production screening and grading cooling device, comprising a shell 1, the upper surface of the shell 1 is provided with a through hole, a filter screen 6 is fixedly installed on the inner wall of the through hole, a fan 5 is fixedly installed on the upper surface of the shell 1, a feed port 2 is provided on the upper surface of the shell 1, a first discharge pipe 3 and a second discharge pipe 4 are provided on the side wall of the shell 1, a partition 7 is fixedly installed on the inner wall of the bottom surface of the shell 1, and a vibration component 8 is provided on the other side wall of the shell 1;

[0043] The vibration assembly 8 includes a dust cover 81, the side wall of the dust cover 81 is fixedly connected to the other side wall of the shell 1, a motor 82 is fixedly installed on the inner wall of the bottom surface of the dust cover 81, a driving rod 83 is fixedly installed on the output end of the motor 82, one end of the driving rod 83 extends to the inside of the shell 1, one end of the driving rod 83 is rotatably connected to the side wall of the partition 7, a cam 84 is fixedly installed on the outer surface of the driving rod 83, a first lifting rod 85 and a second lifting rod 810 are slidably installed on the inner side wall of the shell 1, one end of the first lifting rod 85 and the second lifting rod 810 both extend to the outside of the other side wall of the partition 7, a connecting spring 89 is fixedly installed on the lower surface of the first lifting rod 85 and the second lifting rod 810, and a baffle 88 is fixedly installed on one end of the connecting spring 89. The outer surface of the baffle 88 is fixedly connected to the inner wall of the partition 7, the outer surface of the first lifting rod 85 is fixedly installed with a roller 86, the upper surface of the first lifting rod 85 is fixedly installed with a connecting column 87, one end of the connecting column 87 is fixedly connected to the lower surface of the second lifting rod 810, one end of the first lifting rod 85 and the second lifting rod 810 are both provided with a screening assembly 10, the upper surface of the second lifting rod 810 is provided with a scraper assembly 9, the screening assembly 10 includes a screen frame 101, one end of the first lifting rod 85 and the second lifting rod 810 are both fixedly installed with a screen frame 101, the side wall of the screen frame 101 is slidably connected to the other inner side wall of the shell 1, the lower surface of the screen frame 101 is fixedly installed with a mesh plate 102, and the inner wall of the mesh plate 102 is fixedly installed with a threaded sleeve 103.

[0044] The specific implementation example is as follows: the alumina powder to be screened is poured into the shell 1 from the feed port 2. At this time, the alumina powder will fall into the uppermost screening component 10. The motor 82 is used to drive the cam 84 to rotate through the driving rod 83. As the cam 84 rotates, the first lifting rod 85 will move up and down in the partition 7 under the limit of the connecting spring 89 under the action of the roller 86. At this time, the first lifting rod 85 will drive the screening component 10 below the shell 1 to vibrate. Under the vibration of the first lifting rod 85, the second lifting rod 810 will be driven to vibrate through the connecting column 87, so that the upper screening component 10 also vibrates. At this time, the larger particles of aluminum powder in the alumina powder above the mesh plate 102 will flow to the first discharge pipe 3 for storage under the action of the screen frame 101. The alumina powder screened on the mesh plate 102 below will flow the medium-sized aluminum powder into the second discharge pipe 4 under the action of the screen frame 101, and the remaining finest aluminum powder will fall on the inner wall of the bottom surface of the shell 1.

[0045] A threaded column 13 is threadedly installed on the inner wall of the threaded sleeve 103, and a support column 11 is fixedly installed on one end of the threaded column 13. One end of the support column 11 is rotatably connected to the bottom inner wall of the shell 1, and a stirring rod 12 is fixedly installed on the outer surface of the support column 11. A rotating column 14 is fixedly installed on the other end of the threaded column 13. One end of the rotating column 14 is rotatably connected to the upper inner wall of the shell 1, and a rotating component 15 is provided on the outer surface of the rotating column 14. A fixed block 16 is fixedly installed on the inner wall of the shell 1, and two fixed plates 17 are fixedly installed on the inner wall of the shell 1 through the fixed block 16. The threaded column 13 and the rotating column 14 respectively penetrate the two fixed plates 17, and a clearing needle 18 is fixedly installed on the upper surface of the fixed plate 17.

[0046] The specific implementation example is as follows: during the up and down vibration of the two screening components 10, the clearing needle 18 installed on the upper surface of the fixed plate 17 will clear the mesh holes on the mesh plate 102. When the lower mesh plate 102 vibrates, the threaded sleeve 103 on the inner wall of the mesh plate 102 will move up and down on the outer surface of the threaded column 13. At this time, the threaded column 13 will respectively mobilize the supporting column 11 and the rotating column 14 to rotate back and forth, and the stirring rod 12 on the outer surface of the supporting column 11 will stir the aluminum powder on the bottom surface of the shell 1.

[0047] The rotating assembly 15 includes a limit plate 153, one end of which is fixedly connected to the side wall of the shell 1, and a first rotating rod 154 is rotatably installed on the lower surface of the limit plate 153, one end of the first rotating rod 154 extends to the inside of the first discharge pipe 3, and a second toothed sprocket 155 is fixedly installed on the outer surface of the first rotating rod 154, and a second rotating rod 157 is rotatably installed on the lower surface of the first discharge pipe 3, one end of the second rotating rod 157 extends to the inside of the second discharge pipe 4, and a third toothed sprocket 158 ​​is fixedly installed on the outer surface of the second rotating rod 157, and a mixing rod 156 is fixedly installed on the outer surfaces of the first rotating rod 154 and the second rotating rod 157, and two first toothed sprockets 151 are fixedly installed on the outer surface of the rotating column 14, and a toothed chain 152 is meshingly installed on the outer surface of the first toothed sprocket 151, and the second toothed sprocket 155 and the third toothed sprocket 158 ​​are respectively connected to the two first toothed sprockets 151 through the toothed chain 152.

[0048] The specific implementation example is as follows: the rotating column 14 drives the two first toothed sprockets 151 to rotate, thereby respectively rotating the second toothed sprocket 155 and the third toothed sprocket 158 ​​under the action of the toothed chain 152, and the rotation of the second toothed sprocket 155 and the third toothed sprocket 158 ​​respectively drives the first rotating rod 154 and the second rotating rod 157 to rotate, and at this time, the mixing rod 156 on the outer surface of the first rotating rod 154 and the second rotating rod 157 stirs the aluminum powder in the first discharge pipe 3 and the second discharge pipe 4.

[0049] The scraper assembly 9 includes a support plate 91 and a movable rod 92, one end of the support plate 91 is fixedly connected to the upper surface of the second lifting rod 810, a triangular block 94 is fixedly installed on the side wall of the support plate 91, and a slide groove 99 is provided on the side wall of the triangular block 94, the movable rod 92 passes through the partition 7, a scraper 93 is fixedly installed on one end of the movable rod 92, the upper surface of the scraper 93 is tightly fitted with the lower surface of the filter screen 6, a fixing ring 95 is fixedly installed on the outer surface of the movable rod 92, and a telescopic spring 96 is fixedly installed on the side wall of the fixing ring 95, the telescopic spring 96 is sleeved on the outer surface of the movable rod 92, and one end of the telescopic spring 96 is fixedly connected to the side wall of the partition 7.

[0050] The specific implementation example is as follows: the heat generated by the aluminum powder in the shell 1 is dissipated through the operation of the fan 5. However, while the fan 5 is dissipating the heat, some dust will be filtered by the filter 6 and adhere to the lower surface of the filter 6. When the second lifting rod 810 vibrates, it will drive the support plate 91 to move. At this time, the triangular block 94 will also move synchronously, so that under the action of the pulley 98, the movable rod 92 will move back and forth under the action of the telescopic spring 96, thereby driving the scraper 93 to clean the dust on the lower surface of the filter 6.

[0051] The present invention also discloses a method for using a high-temperature alumina powder production screening and grading cooling device, comprising the following steps:

[0052] S1. Pour the alumina powder to be screened into the housing 1 from the feed port 2. At this time, the alumina powder will fall into the uppermost screening assembly 10. The motor 82 drives the cam 84 to rotate through the driving rod 83. As the cam 84 rotates, the first lifting rod 85 will move up and down in the partition 7 under the limit of the connecting spring 89 under the action of the roller 86. At this time, the first lifting rod 85 will drive the screening assembly 10 below the housing 1 to vibrate. Under the vibration of the first lifting rod 85, the second lifting rod 810 will be driven to vibrate through the connecting column 87, so that the upper screening assembly 10 will also vibrate;

[0053] S2, the larger particles of aluminum powder in the aluminum oxide powder above the mesh plate 102 will flow into the first discharge pipe 3 for storage under the action of the screen frame 101, and the aluminum oxide powder screened to the mesh plate 102 below will flow the medium-sized aluminum powder into the second discharge pipe 4 under the action of the screen frame 101, and the remaining finest aluminum powder will fall on the bottom inner wall of the shell 1. During the up and down vibration of the two screening components 10, the dredging needle 18 installed on the upper surface of the fixed plate 17 will dredge the mesh on the mesh plate 102;

[0054] S3. When the lower mesh plate 102 vibrates, the threaded sleeve 103 on the inner wall of the mesh plate 102 will move up and down on the outer surface of the threaded column 13. At this time, the threaded column 13 will respectively mobilize the support column 11 and the rotating column 14 to rotate back and forth. The stirring rod 12 on the outer surface of the support column 11 will stir the aluminum powder on the bottom surface of the shell 1. At the same time, the rotating column 14 will drive the two first toothed sprockets 151 to rotate, so that the second toothed sprocket 155 and the third toothed sprocket 158 ​​will rotate respectively under the action of the toothed chain 152. As the second toothed sprocket 155 and the third toothed sprocket 158 ​​rotate, the first rotating rod 154 and the second rotating rod 157 will be driven to rotate respectively. At this time, the mixing rod 156 on the outer surface of the first rotating rod 154 and the second rotating rod 157 will stir the aluminum powder in the first discharge pipe 3 and the second discharge pipe 4;

[0055] S4. The heat generated by the aluminum powder in the shell 1 is dissipated through the operation of the fan 5. However, while the fan 5 is dissipating the heat, some dust will be filtered by the filter 6 and adhere to the lower surface of the filter 6. When the second lifting rod 810 vibrates, it will drive the support plate 91 to move. At this time, the triangular block 94 will also move synchronously, so that under the action of the pulley 98, the movable rod 92 will move back and forth under the action of the telescopic spring 96, thereby driving the scraper 93 to clean the dust on the lower surface of the filter 6.

[0056] Working principle: Pour the alumina powder to be screened into the shell 1 from the feed port 2. At this time, the alumina powder will fall into the uppermost screening component 10. The motor 82 drives the cam 84 to rotate through the driving rod 83. As the cam 84 rotates, the first lifting rod 85 will move up and down in the partition 7 under the action of the roller 86 under the limit of the connecting spring 89. At this time, the first lifting rod 85 will drive the screening component 10 below the shell 1 to vibrate. Under the vibration of the first lifting rod 85, the second lifting rod 810 will be driven to vibrate through the connecting column 87, so that the upper screening component 10 is also The screen frame 101 is used to vibrate the screen 102. At this time, the larger aluminum powder in the aluminum oxide powder above the screen plate 102 will flow to the first discharge pipe 3 for storage under the action of the screen frame 101. The aluminum oxide powder screened to the lower screen plate 102 will flow the medium-sized aluminum powder to the second discharge pipe 4 under the action of the screen frame 101. The remaining finest aluminum powder will fall on the bottom inner wall of the shell 1. During the up and down vibration of the two screening components 10, the dredging needle 18 installed on the upper surface of the fixing plate 17 will dredge the mesh on the screen plate 102. When the lower screen plate 102 vibrates, the threaded sleeve 103 on the inner wall of the screen plate 102 will be on the threaded column. The outer surface of the support column 13 moves up and down, and the threaded column 13 will respectively mobilize the support column 11 and the rotating column 14 to rotate back and forth. The stirring rod 12 on the outer surface of the support column 11 will stir the aluminum powder on the bottom surface of the shell 1. At the same time, the rotating column 14 will drive the two first toothed sprockets 151 to rotate, so that the second toothed sprocket 155 and the third toothed sprocket 158 ​​are respectively rotated under the action of the toothed chain 152. With the rotation of the second toothed sprocket 155 and the third toothed sprocket 158, the first rotating rod 154 and the second rotating rod 157 are respectively driven to rotate. At this time, the first rotating rod 154 and the second rotating rod The mixing rod 156 on the outer surface of 157 will stir the aluminum powder in the first discharge pipe 3 and the second discharge pipe 4, and the heat generated by the aluminum powder in the shell 1 will be dissipated through the operation of the fan 5. However, while the fan 5 is dissipating the heat, some dust will be filtered out by the filter 6 and adhere to the lower surface of the filter 6. When the second lifting rod 810 vibrates, it will drive the support plate 91 to move. At this time, the triangular block 94 will also move synchronously, so that under the action of the pulley 98, the movable rod 92 will move back and forth under the action of the telescopic spring 96, and then drive the scraper 93 to clean the dust on the lower surface of the filter 6.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screening, grading and cooling device for the production of high-temperature alumina powder, comprising a shell (1), the upper surface of the shell (1) being provided with a through hole, a filter screen (6) being fixedly mounted on the inner wall of the through hole, a fan (5) being fixedly mounted on the upper surface of the shell (1), a feed inlet (2) being provided on the upper surface of the shell (1), a first discharge pipe (3) and a second discharge pipe (4) being provided on the side wall of the shell (1), and a partition plate (7) being fixedly mounted on the inner wall of the bottom surface of the shell (1), characterized in that: A vibration component (8) is provided on the other side wall of the housing (1); The vibration assembly (8) comprises a dust cover (81), the side wall of the dust cover (81) is fixedly connected to the other side wall of the shell (1), a motor (82) is fixedly mounted on the inner wall of the bottom surface of the dust cover (81), a driving rod (83) is fixedly mounted on the output end of the motor (82), one end of the driving rod (83) extends to the inside of the shell (1), one end of the driving rod (83) is rotatably connected to the side wall of the partition (7), a cam (84) is fixedly mounted on the outer surface of the driving rod (83), a first lifting rod (85) and a second lifting rod (810) are slidably mounted on the inner side wall of the shell (1), one end of the first lifting rod (85) and the second lifting rod (810) both extend to the outside of the other side wall of the partition (7), a connecting spring (89) is fixedly mounted on the lower surface of the first lifting rod (85) and the second lifting rod (810), and a baffle (88) is fixedly mounted on one end of the connecting spring (89). The outer surface of the baffle (88) is fixedly connected to the inner wall of the partition (7); a roller (86) is fixedly mounted on the outer surface of the first lifting rod (85); a connecting column (87) is fixedly mounted on the upper surface of the first lifting rod (85); one end of the connecting column (87) is fixedly connected to the lower surface of the second lifting rod (810); one end of each of the first lifting rod (85) and the second lifting rod (810) is provided with a screening assembly (10); a scraping assembly (9) is provided on the upper surface of the second lifting rod (810); the screening assembly (10) comprises a screening frame (101); one end of each of the first lifting rod (85) and the second lifting rod (810) is fixedly mounted with a screening frame (101); a side wall of the screening frame (101) is slidably connected to the other inner side wall of the housing (1); a mesh plate (102) is fixedly mounted on the lower surface of the screening frame (101); and a threaded sleeve (103) is fixedly mounted on the inner wall of the mesh plate (102).

2. The high temperature alumina powder production screening and grading cooling device according to claim 1 is characterized in that: A threaded column (13) is threadedly mounted on the inner wall of the threaded sleeve (103); a support column (11) is fixedly mounted on one end of the threaded column (13); one end of the support column (11) is rotatably connected to the inner wall of the bottom surface of the shell (1); a stirring rod (12) is fixedly mounted on the outer surface of the support column (11); a rotating column (14) is fixedly mounted on the other end of the threaded column (13); one end of the rotating column (14) is rotatably connected to the upper inner wall of the shell (1); and a rotating assembly (15) is provided on the outer surface of the rotating column (14).

3. The high temperature alumina powder production screening, grading and cooling device according to claim 2 is characterized in that: A fixing block (16) is fixedly mounted on the inner wall of the shell (1), and two fixing plates (17) are fixedly mounted on the inner wall of the shell (1) via the fixing block (16); the threaded column (13) and the rotating column (14) respectively penetrate the two fixing plates (17), and a clearing needle (18) is fixedly mounted on the upper surface of the fixing plate (17).

4. The high temperature alumina powder production screening, grading and cooling device according to claim 3 is characterized in that: The rotating assembly (15) comprises a limit plate (153), one end of the limit plate (153) is fixedly connected to the side wall of the shell (1), a first rotating rod (154) is rotatably mounted on the lower surface of the limit plate (153), one end of the first rotating rod (154) extends to the interior of the first discharge pipe (3), a second sprocket (155) is fixedly mounted on the outer surface of the first rotating rod (154), a second rotating rod (157) is rotatably mounted on the lower surface of the first discharge pipe (3), one end of the second rotating rod (157) extends to the interior of the second discharge pipe (4).

5. The high temperature alumina powder production screening, grading and cooling device according to claim 4, characterized in that: A third toothed sprocket (158) is fixedly mounted on the outer surface of the second rotating rod (157); a mixing rod (156) is fixedly mounted on the outer surfaces of the first rotating rod (154) and the second rotating rod (157); two first toothed sprockets (151) are fixedly mounted on the outer surface of the rotating column (14); a toothed chain (152) is meshingly mounted on the outer surface of the first toothed sprocket (151); and the second toothed sprocket (155) and the third toothed sprocket (158) are respectively connected to the two first toothed sprockets (151) via the toothed chain (152).

6. The high temperature alumina powder production screening, grading and cooling device according to claim 5, characterized in that: The scraper assembly (9) comprises a support plate (91) and a movable rod (92); one end of the support plate (91) is fixedly connected to the upper surface of the second lifting rod (810); a triangular block (94) is fixedly mounted on the side wall of the support plate (91); a sliding groove (99) is arranged on the side wall of the triangular block (94); the movable rod (92) passes through the partition (7); a scraper (93) is fixedly mounted on one end of the movable rod (92); the upper surface of the scraper (93) is tightly fitted with the lower surface of the filter screen (6); a fixing ring (95) is fixedly mounted on the outer surface of the movable rod (92); a telescopic spring (96) is fixedly mounted on the side wall of the fixing ring (95); the telescopic spring (96) is sleeved on the outer surface of the movable rod (92); one end of the telescopic spring (96) is fixedly connected to the side wall of the partition (7).

7. The method for using the high temperature alumina powder production screening and grading cooling device according to any one of claims 1 to 6, characterized in that: The steps include: S1. Alumina powder to be screened is poured into the housing (1) from the feed port (2). At this time, the alumina powder will fall into the uppermost screening component (10). The motor (82) drives the cam (84) to rotate via the driving rod (83). As the cam (84) rotates, the first lifting rod (85) moves up and down in the partition (7) under the action of the roller (86) under the limit of the connecting spring (89). At this time, the first lifting rod (85) drives the screening component (10) below the housing (1) to vibrate. Under the vibration of the first lifting rod (85), the second lifting rod (810) is driven to vibrate via the connecting column (87), so that the upper screening component (10) also vibrates. S2, the larger particles of aluminum powder in the aluminum oxide powder above the mesh plate (102) will flow into the first discharge pipe (3) for storage under the action of the screen frame (101), and the aluminum oxide powder screened onto the mesh plate (102) below will flow the medium-sized aluminum powder into the second discharge pipe (4) under the action of the screen frame (101), and the remaining finest aluminum powder will fall onto the bottom inner wall of the shell (1). During the up and down vibration of the two screening components (10), the dredging needles (18) installed on the upper surface of the fixed plate (17) will dredge the mesh holes on the mesh plate (102); S3. When the lower screen plate (102) vibrates, the threaded sleeve (103) on the inner wall of the screen plate (102) moves up and down on the outer surface of the threaded column (13). At this time, the threaded column (13) respectively drives the support column (11) and the rotating column (14) to rotate back and forth. The stirring rod (12) on the outer surface of the support column (11) stirs the aluminum powder on the bottom surface of the shell (1). At the same time, the rotating column (14) drives the two first toothed sprockets (151) to rotate, thereby The second sprocket wheel (155) and the third sprocket wheel (158) are respectively rotated by the toothed chain (152). The rotation of the second sprocket wheel (155) and the third sprocket wheel (158) respectively drives the first rotating rod (154) and the second rotating rod (157) to rotate. At this time, the mixing rods (156) on the outer surfaces of the first rotating rod (154) and the second rotating rod (157) stir the aluminum powder in the first discharge pipe (3) and the second discharge pipe (4); S4. The heat generated by the aluminum powder in the housing (1) is dissipated through the operation of the fan (5). However, while the fan (5) is dissipating heat, some dust is filtered out by the filter (6) and adheres to the lower surface of the filter (6). When the second lifting rod (810) vibrates, it drives the support plate (91) to move. At this time, the triangular block (94) also moves synchronously, so that the movable rod (92) is driven to move back and forth under the action of the telescopic spring (96) under the action of the pulley (98), thereby driving the scraper (93) to clean the dust on the lower surface of the filter (6).

Images