Zirconium oxide powder drying device

Abstract

The utility model discloses a zirconium oxide powder drying device, and belongs to the technical field of zirconium oxide processing equipment. Comprising a drying tank composed of an outer lining layer and an inner lining layer, a heating coil installed between the outer lining layer and the inner lining layer, a discharging pipe connected to the bottom of the drying tank in a communicating mode and a material fixing valve installed at the position of the discharging pipe, a cover plate is installed at the top of the drying tank, and a circulating lifting mechanism is installed at the position of the cover plate. A dispersing assembly is arranged on the inner side of the drying tank, a driving mechanism is installed above the dispersing assembly, a speed reduction motor forming a lifting mechanism can work, a rotating shaft is used for driving a spiral blade to rotate, after zirconium oxide powder enters the inner side of a lifting cylinder through a feeding port, the zirconium oxide powder is lifted upwards through the spiral blade, and then the zirconium oxide powder is dispersed. And finally, the zirconium oxide powder is discharged through the discharging pipe and falls onto the dispersing assembly again, circulation is conducted in this way, and the drying effect of the zirconium oxide powder can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of zirconia processing equipment, and more specifically, to a zirconia powder drying device. Background Technique

[0002] Zirconia generally refers to zirconium dioxide, which is the main oxide of zircon. Usually, it is a white, odorless and tasteless crystal in powder form, insoluble in water, hydrochloric acid and dilute sulfuric acid, and has inactive chemical properties. However, its properties of high melting point, high resistivity, high refractive index and low thermal expansion coefficient make it the main raw material for refractory materials, ceramic insulating materials, ceramic light-shielding agents and artificial diamonds. When zirconia powder is produced or stored, it will be in a wet state and needs to be dried by a drying device. Most of the existing drying devices use hot air for drying. The hot air outlet is in a local position, resulting in uneven drying. Moreover, the wet zirconia will agglomerate in part, lacking a dispersing mechanism, resulting in poor drying quality.

[0003] In the existing patent, a zirconia powder drying device with the patent authorization number CN213543167U is provided. When zirconia powder enters the drying box, the dispersing mechanism can disperse the wet and agglomerated zirconia. After passing through the dispersing mechanism, the zirconia can be scattered, so that the zirconia powder can fully contact the drying hot air. The falling speed of the scattered zirconia is reduced, and its drying time is prolonged.

[0004] However, in the drying box of the patent with the authorization number CN213543167U, a buffer mesh plate is horizontally arranged inside. The setting of the buffer mesh plate further decelerates the zirconia powder and realizes a certain degree of diffusion, improving its drying quality. There is a discharge port at the outer bottom of the drying box, and an inclined guide plate is arranged at the bottom of the inner cavity of the drying box. Since the zirconia powder is discharged through the discharge port after a short drying time after entering the inner side of the drying box, the drying effect of the zirconia is not ideal. Therefore, we propose a zirconia powder drying device to solve the above existing problems. Summary of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] Aiming at the problems existing in the prior art, the purpose of the present utility model is to provide a zirconia powder drying device. It can work through the reduction motor that composes the lifting mechanism, drive the spiral blade to rotate by the rotating shaft. When the zirconia powder enters the inside of the lifting cylinder through the feed port, use the spiral blade to lift it upward, and finally discharge it through the discharge pipe and fall onto the dispersion assembly again, and cycle in this way, which can effectively improve the drying effect of the zirconia powder.

[0007] 2. Technical Solutions

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A zirconia powder drying device, comprising a drying tank composed of an outer lining layer and an inner lining layer, a heating coil installed between the outer lining layer and the inner lining layer, a discharge pipe conductively connected to the bottom of the drying tank, and a solid material valve installed at the discharge pipe. A cover plate is installed at the top of the drying tank;

[0010] A circulation and lifting mechanism is installed at the cover plate;

[0011] The circulation and lifting mechanism includes a reduction motor installed on the upper surface of the cover plate, a lifting cylinder fixedly connected to the middle part of the lower surface of the cover plate, a rotating shaft rotatably connected to the inside of the lifting cylinder and having its top end drivingly connected to the power output end of the reduction motor, a spiral blade welded to the outer wall of the rotating shaft, a feed inlet symmetrically opened at the bottom end of the lifting cylinder, and a discharge pipe conductively connected to the top end of the lifting cylinder and arranged at an angle;

[0012] A dispersion assembly is arranged inside the drying tank;

[0013] The dispersion assembly includes a boss fixedly connected to the inner wall of the inner lining layer, a guide post fixedly connected to the upper surface of the boss, a spring sleeved outside the guide post, an annular plate arranged above the spring and inserted and connected to the guide post, and a dispersion mesh plate installed inside the annular plate and penetrated by the lifting cylinder;

[0014] A driving mechanism is installed above the dispersion assembly;

[0015] The driving mechanism includes a knocking plate installed above the annular plate, and a driving motor installed outside the drying tank through a bracket and having its power output end drivingly connected to the knocking plate;

[0016] An air outlet pipe and a feed hopper fixedly connected to the cover plate are respectively arranged on both sides of the reduction motor.

[0017] Furthermore, a heat preservation layer is also installed between the outer lining layer and the inner lining layer, and the heat preservation layer is made of rock wool material.

[0018] Furthermore, a plurality of discharge pipes are arranged at the radial position of the lifting cylinder;

[0019] The included angle between the axis of the discharge pipe and the axis of the lifting cylinder is 75°.

[0020] Furthermore, the inner diameter of the lifting cylinder is adapted to the outer diameter of the spiral blade.

[0021] Furthermore, specifically three guide posts are provided, and the included angle between two adjacent guide posts corresponding to the axis of the boss is 120°;

[0022] The top end of the guide post is fixedly connected with a limiting part, and the limiting part abuts against the upper surface of the annular plate.

[0023] Furthermore, the bottom end of the spring is connected to the boss, and the top end of the spring is connected to the annular plate.

[0024] Furthermore, a bearing is installed at the part where the output shaft of the driving motor is combined with the drying tank.

[0025] 3. Beneficial effects

[0026] Compared with the prior art, the advantages of the present utility model are as follows:

[0027] (1) In this solution, after the dispersed zirconia powder falls to the bottom of the inner cavity of the drying tank, the reduction motor that makes up the lifting mechanism works, and the spiral blade is driven to rotate by the rotating shaft. When the zirconia powder enters the inside of the lifting cylinder through the feed port, it is lifted upward by the spiral blade, and finally discharged through the discharge pipe and falls onto the dispersion assembly again, and circulates in this way, which can effectively improve the drying effect of the zirconia powder.

[0028] (2) In this solution, the powdery zirconia is added to the drying tank through the feed hopper and falls onto the dispersion assembly. The driving motor that makes up the driving mechanism works to drive the knocking plate to operate, and the knocking plate knocks on the annular plate, and the annular plate is reset under the elastic force of the spring, so as to disperse the falling zirconia powder by using the dispersion mesh plate, which is beneficial to the drying of the zirconia powder. Brief description of the drawings

[0029] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0030] Figure 2 is a side view schematic diagram of the drying tank of the present utility model;

[0031] Figure 3 is a sectional view of the drying tank of the present utility model taken along the line A-A;

[0032] Figure 4 is a structure schematic diagram of the dispersion assembly of the present utility model;

[0033] Figure 5 is an enlarged schematic diagram of part A of the present utility model;

[0034] Figure 6 is a structure schematic diagram of the driving mechanism of the present utility model.

[0035] Explanation of the reference numerals in the drawings:

[0036] Outer lining layer; 2. Inner lining layer; 3. Heating coil; 4. Discharge pipe; 5. Cover plate; 6. Reducing motor; 7. Lifting cylinder; 8. Rotating shaft; 9. Spiral blade; 10. Feed inlet; 11. Discharge pipe; 12. Boss; 13. Guide post; 14. Spring; 15. Annular plate; 16. Dispersion mesh plate; 17. Driving motor; 18. Knocking plate; 19. Air outlet pipe; 20. Feed hopper; 21. Heat preservation layer. Specific implementation mode

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Embodiment

[0039] Please refer to Figure 1-6 , a zirconia powder drying device, including a drying tank composed of an outer lining layer 1 and an inner lining layer 2, a heating coil 3 installed between the outer lining layer 1 and the inner lining layer 2, a discharge pipe 4 conductively connected to the bottom of the drying tank, and a solid material valve installed at the discharge pipe 4. A cover plate 5 is installed at the top of the drying tank;

[0040] A circulating lifting mechanism is installed at the cover plate 5;

[0041] The circulating lifting mechanism includes a reducing motor 6 installed on the upper surface of the cover plate 5, a lifting cylinder 7 fixedly connected to the middle of the lower surface of the cover plate 5, a rotating shaft 8 rotatably connected to the inside of the lifting cylinder 7 and having its top end drivingly connected to the power output end of the reducing motor 6, a spiral blade 9 welded to the outer wall of the rotating shaft 8, a feed inlet 10 symmetrically opened at the bottom end of the lifting cylinder 7, and a discharge pipe 11 conductively connected to the top end of the lifting cylinder 7 and arranged at an angle;

[0042] A dispersion assembly is arranged inside the drying tank;

[0043] The dispersion assembly includes a boss 12 fixedly connected to the inner wall of the inner lining layer 2, a guide post 13 fixedly connected to the upper surface of the boss 12, a spring 14 sleeved outside the guide post 13, an annular plate 15 arranged above the spring 14 and inserted and connected to the guide post 13, and a dispersion mesh plate 16 installed inside the annular plate 15 and penetrated by the lifting cylinder 7;

[0044] A driving mechanism is installed above the dispersion assembly;

[0045] The driving mechanism includes a knocking plate 18 installed above the annular plate 15 and a driving motor 17 installed outside the drying tank through a bracket and having its power output end drivingly connected to the knocking plate 18;

[0046] On both sides of the reduction motor 6, an air outlet pipe 19 and a feed hopper 20 fixedly connected to the cover plate 5 are respectively arranged.

[0047] It should be noted that when the zirconia powder drying device is in use, the inner side of the drying tank starts to heat up through the operation of the heating coil 3.

[0048] The powdery zirconia is added into the drying tank through the feed hopper 20 and falls onto the dispersion assembly. The driving motor 17 that makes up the driving mechanism operates to drive the knocking plate 18 to rotate. The knocking plate 18 knocks on the annular plate 15, and under the elastic force of the spring 14, the annular plate 15 resets. Thus, the falling zirconia powder is dispersed by the dispersion mesh plate 16, which is beneficial to the drying of the zirconia powder.

[0049] After the dispersed zirconia powder falls to the bottom of the inner cavity of the drying tank, the reduction motor 6 that makes up the lifting mechanism operates. The rotating shaft 8 drives the spiral blade 9 to rotate. When the zirconia powder enters the inside of the lifting cylinder 7 through the feed port 10, the spiral blade 9 lifts it upward. Finally, it is discharged through the discharge pipe 11 and falls onto the dispersion assembly again, and circulates in this way, which can effectively improve the drying effect of the zirconia powder.

[0050] The water vapor generated during the drying process is discharged through the air outlet pipe 19. After the drying is completed, the solid material valve at the discharge pipe 4 is opened to discharge the dried zirconia powder.

[0051] As Figure 3 shown, a heat preservation layer 21 is also installed between the outer lining layer 1 and the inner lining layer 2, and the heat preservation layer 21 is made of rock wool.

[0052] It should be noted that by filling the heat preservation layer 21 in the sandwich between the outer lining layer 1 and the inner lining layer 2, the heat dissipation can be reduced, the temperature inside the drying tank can be effectively maintained, and thus the drying effect on the zirconia powder is improved.

[0053] As Figure 3 、 Figure 4 shown, a plurality of discharge pipes 11 are arranged at the radial position of the lifting cylinder 7.

[0054] The included angle between the axis of the discharge pipe 11 and the axis of the lifting cylinder 7 is 75°.

[0055] It should be noted that by arranging a plurality of discharge pipes 11, the discharging efficiency can be improved, and the angular arrangement of the discharge pipes 11 is beneficial to discharging.

[0056] As Figure 3 shown, the inner diameter of the lifting cylinder 7 is adapted to the outer diameter of the spiral blade 9.

[0057] It should be noted that it is beneficial to lift the zirconia powder upward inside the lifting cylinder 7 to prevent material leakage.

[0058] As Figure 4 , Figure 5 shown, there are specifically three guide posts 13, and the included angle between two adjacent guide posts 13 corresponding to the axis of the boss 12 is 120°;

[0059] The top end of the guide post 13 is fixedly connected with a limiting part, and the limiting part abuts against the upper surface of the annular plate 15. The bottom end of the spring 14 is connected to the boss 12, and the top end of the spring 14 is connected to the annular plate 15;

[0060] It should be noted that by utilizing the limiting part provided at the top end of the guide post 13, the annular plate 15 can be made to oscillate in cooperation with the elastic force of the spring 14, which is beneficial to the dispersion of the falling material of the mesh plate 16.

[0061] As Figure 3 , Figure 6 shown, a bearing is installed at the combined part of the output shaft of the driving motor 17 and the drying tank;

[0062] It should be noted that the friction between the output shaft of the driving motor 17 and the drying tank is reduced, and the rotation accuracy of the output shaft of the driving motor 17 is ensured.

[0063] During use: The inside of the drying tank starts to heat up by the operation of the heating coil 3;

[0064] The powdered zirconia is added into the drying tank through the feed hopper 20 and falls onto the dispersion assembly. The driving motor 17 that makes up the driving mechanism operates to drive the knocking plate 18 to rotate. The knocking plate 18 knocks on the annular plate 15, and under the elastic force of the spring 14, the annular plate 15 resets, so as to disperse the falling zirconia powder by using the dispersion mesh plate 16, which is beneficial to the drying of the zirconia powder;

[0065] After the dispersed zirconia powder falls to the bottom of the inner cavity of the drying tank, the reduction motor 6 that makes up the lifting mechanism operates, and the spiral blade 9 is driven to rotate by the rotating shaft 8. When the zirconia powder enters the inside of the lifting cylinder 7 through the feed port 10, it is lifted upward by the spiral blade 9, and finally discharged through the discharge pipe 11 and falls onto the dispersion assembly again, and circulates in this way, which can effectively improve the drying effect of the zirconia powder;

[0066] The water vapor generated during the drying process is discharged through the air outlet pipe 19. After the drying is completed, the solid material valve at the discharge pipe 4 is opened to discharge the dried zirconia powder.

[0067] The above are only the preferred specific embodiments of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A zirconia powder drying device, comprising a drying tank composed of an outer lining layer (1) and an inner lining layer (2), a heating coil (3) installed between the outer lining layer (1) and the inner lining layer (2), a discharge pipe (4) conductively connected to the bottom of the drying tank, and a solid material valve installed at the discharge pipe (4), characterized in that: A cover plate (5) is installed on the top of the drying tank; A circulating lifting mechanism is installed at the cover plate (5); The circulating lifting mechanism includes a reduction motor (6) installed on the upper surface of the cover plate (5), a lifting cylinder (7) fixedly connected to the middle of the lower surface of the cover plate (5), a rotating shaft (8) rotatably connected to the inner side of the lifting cylinder (7) and having its top end drivingly connected to the power output end of the reduction motor (6), a spiral blade (9) welded to the outer wall of the rotating shaft (8), a feed inlet (10) symmetrically opened at the bottom end of the lifting cylinder (7), and a discharge pipe (11) conductively connected to the top end of the lifting cylinder (7) and arranged at an angle; A dispersion assembly is arranged inside the drying tank; The dispersion assembly includes a boss (12) fixedly connected to the inner wall of the inner lining layer (2), a guide post (13) fixedly connected to the upper surface of the boss (12), a spring (14) sleeved outside the guide post (13), an annular plate (15) arranged above the spring (14) and inserted and connected to the guide post (13), and a dispersion mesh plate (16) installed inside the annular plate (15) and penetrated by the lifting cylinder (7); A driving mechanism is installed above the dispersion assembly; The driving mechanism includes a knocking plate (18) installed above the annular plate (15), and a driving motor (17) installed outside the drying tank through a bracket and having its power output end drivingly connected to the knocking plate (18); An air outlet pipe (19) and a feed hopper (20) fixedly connected to the cover plate (5) are respectively arranged on both sides of the reduction motor (6).

2. The zirconia powder drying device according to claim 1, wherein: A heat insulation layer (21) is further installed between the outer lining layer (1) and the inner lining layer (2), and the heat insulation layer (21) is made of rock wool.

3. The zirconia powder drying device according to claim 1, characterized in that: A plurality of discharge pipes (11) are arranged at the radial position of the lifting cylinder (7); The included angle between the axis of the discharge pipe (11) and the axis of the lifting cylinder (7) is 75°; 4. A zirconia powder drying device according to claim 1, characterized in that: The inner diameter of the lifting cylinder (7) is adapted to the outer diameter of the spiral blade (9); 5. The zirconia powder drying device according to claim 1, characterized in that: Specifically, three guide posts (13) are provided, and the included angle between two adjacent guide posts (13) corresponding to the axis of the boss (12) is 120°; A limiting part is fixedly connected to the top end of the guide post (13), and the limiting part abuts against the upper surface of the annular plate (15); 6. The zirconia powder drying device according to claim 1, wherein: The bottom end of the spring (14) is connected to the boss (12), and the top end of the spring (14) is connected to the annular plate (15); 7. An apparatus for drying zirconia powder according to claim 1, characterized in that: A bearing is installed at the joint where the output shaft of the driving motor (17) is combined with the drying tank.

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