Drying device with local uniformity regulation and control function for zinc oxide production

Abstract

The invention discloses a drying device with a local uniformity regulation and control function for zinc oxide production, and relates to the technical field of drying devices for zinc oxide production. The drying device comprises a crushing and feeding module, a sealing cover, a heating module, a hot air module, a vibration motor, a damping base, a material distribution plate and an air outlet pipe; in the working process, zinc oxide wet materials are put into the crushing and feeding module, the wet materials are crushed and scattered, hot air can also enter the crushing and feeding module in the scattering process to preliminarily heat the wet materials, moisture loss of the wet materials is accelerated, the crushing effect of the wet materials is enhanced, hot air blown out by the hot air module is blown out through through holes in a material distribution plate, and the crushing effect of the wet materials is improved. The wet material is blown by the hot air to be in a fluidized state, continuously flows towards the discharge hole and finally flows out from the discharge hole; when too much wet materials are accumulated in the local area of the material distribution plate, accumulated heat can be generated in the corresponding area of the heating module, adjustment is made, the local airflow intensity is enhanced, the accumulated wet materials are blown away, and drying is more uniform.

Description

Technical Field

[0001] The invention relates to the technical field of drying devices for zinc oxide production, in particular to a drying device for zinc oxide production with a local uniformity control function. Background Art

[0002] In the production process of zinc oxide, drying is a crucial link. The drying effect of zinc oxide directly affects its quality and effect. Most traditional zinc oxide drying devices use a single heating and stirring method. Although some devices have the functions of rotation and stirring, in the actual drying process, there will still be problems such as material accumulation blocking the heating vents and uneven drying. Local uniformity control can ensure that the zinc oxide material is evenly distributed and heated during the drying process, avoiding local overheating or overcooling. For this reason, we need a drying device with local uniformity control function for zinc oxide production. Summary of the invention

[0003] The object of the present invention is to provide a drying device for zinc oxide production with a local uniformity control function to solve the problems raised in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions: The drying device includes a crushing and feeding module, a cover, a heating module, a hot air module, a vibration motor, a shock-absorbing base, a cloth plate and an air outlet pipe. The shock-absorbing base is fixedly connected to the bottom end of the heating module and is located at both ends of the bottom of the heating module. The cloth plate is fixedly connected to the heating module and is located at the top of the heating module. A through hole is provided on the cloth plate. The cover is fixedly connected to the cloth plate and is located at the top of the cloth plate. The hot air module is connected to the heating module through pipes. The air outlet pipe is connected to the cover. A discharge port is provided at one end of the cover. The crushing and feeding module is inserted into the cover from the other end of the cover. The crushing and feeding module is fixedly connected to the cover. The end of the shock-absorbing base close to the crushing and feeding module is higher than the end close to the discharge port. The vibration motor is fixedly connected to the heating module and is arranged on the side end surface of the heating module.

[0005] When the present invention is working, the hot air module is first started for preheating. When the temperature in the drying device reaches a predetermined value, the crushing feeding module and the vibration motor are started, and the drying device as a whole starts to vibrate, and the zinc oxide wet material is put into the crushing feeding module. The crushing feeding module crushes and scatters the wet material. During the scattering process, the hot air in the drying device will also enter the crushing feeding module to preliminarily heat the wet material, accelerate the loss of moisture in the wet material, and enhance the crushing effect of the wet material. The wet material after crushing and drying falls onto the cloth plate, and the hot air blown out by the hot air module passes through the heating module and then blows toward the cloth plate. The hot air is blown out through the through holes on the cloth plate. With the vibration of the drying device as a whole, the wet material is blown up by the hot air to a fluidized state, so as to achieve uniform heating and more sufficient drying effect, and continuously flows to the discharge port, and finally flows out from the discharge port. When the wet material accumulates too much in a local area of ​​the cloth plate, the corresponding area of ​​the heating module will generate heat accumulation, and make adjustments to enhance the local airflow intensity, blow away the accumulated wet material, and make the drying more uniform.

[0006] Furthermore, the crushing feeding module includes a feed pipe, a drive motor, a rotating rod and a crushing cover, the feed pipe and the sealing cover are connected, the drive motor and the side end face of the feed pipe are fixedly connected, the output shaft of the drive motor and the rotating rod are fixedly connected, the rotating rod is inserted into the feed pipe and the crushing cover in sequence, the crushing cover is arranged inside the sealing cover, the crushing cover and the sealing cover are fixedly connected, the inlet of the crushing cover covers the connecting interface between the feed pipe and the sealing cover, and the crushing cover is provided with multiple through holes.

[0007] The wet material enters from the feed pipe, and the driving motor drives the rotating rod to rotate. The rotating rod transports the wet material to the crushing cover for crushing and dispersion. When the wet material is crushed and dispersed in the crushing cover, hot air continuously flows into the crushing cover from the through holes on the crushing cover to heat and dry the wet material therein to prevent the wet material from being difficult to crush and sticking to the crushing cover. The height of the shock-absorbing base close to one end of the feed pipe is higher than that of the one end of the discharge port. The drying device is in an inclined state as a whole. Under the vibration generated by the vibration motor, the wet material in the feed pipe and the crushing cover is not easy to accumulate, and is more likely to fall onto the distribution plate for subsequent drying.

[0008] Furthermore, a portion of the rotating rod located in the feed pipe is provided with a spiral sheet, and a portion of the rotating rod located in the crushing cover is provided with a crushing rod.

[0009] When the wet material falls into the feed pipe, the spiral blade rotates under the drive of the drive motor to realize the spiral feeding of the wet material, and the wet material is sent into the crushing cover, broken up by the rotating crushing rod, and then falls onto the distribution plate through the through hole on the crushing cover.

[0010] Furthermore, a baffle is provided on the inner wall of the cover, a gap is left between the baffle and the material distribution plate, and the baffle is located between the discharge port and the crushing cover.

[0011] The crushed and broken wet material is blown up by hot air on the cloth plate in a fluid state, and continuously moves toward the baffle under the overall vibration of the drying device. When passing through the baffle, the locally accumulated wet material will continuously hit the baffle and flow to both sides at the same time, so that the wet material after passing through the baffle is evenly distributed on the radial section. The baffle also prolongs the drying time of the wet material before passing through the baffle, making the pre-drying of the wet material more sufficient and reducing the subsequent drying pressure.

[0012] Furthermore, the air outlet pipe is provided with a plurality of inlets, one of the inlets of the air outlet pipe is arranged between the baffle plate and the inlet of the crushing cover, and the inlets of the remaining air outlet pipes are arranged between the baffle plate and the discharge port.

[0013] After the wet material is dried, the moisture will rise with the hot air and enter the air outlet pipe for discharge, reducing the air humidity in the drying device and ensuring the drying efficiency and quality.

[0014] Furthermore, the heating module includes a heating bin, a heat insulation board and a local regulating mechanism, a vibration motor is arranged on the side end surface of the heating bin, the heating bin and the vibration motor are fixedly connected, a plurality of heat insulation boards are arranged, the plurality of heat insulation boards are fixedly connected to the heating bin, the plurality of heat insulation boards divide the heating bin into a plurality of sections in the long axis direction, the local regulating mechanism is arranged between every two adjacent heat insulation boards, the local regulating mechanism is fixedly connected to every two adjacent heat insulation boards, an air inlet of the heating bin is arranged between every two adjacent heat insulation boards, an air inlet is also arranged between the heat insulation board near one end of the discharge port and one end of the heating bin near the discharge port, an air inlet is also arranged between the heat insulation board near one end of the feed pipe and one end of the heating bin near the feed pipe, all the air inlets of the heating bin are located below the local regulating mechanism, and all the air inlets of the heating bin are connected to the multiple air outlets of the hot air module in a one-to-one correspondence.

[0015] Multiple insulation boards divide the heating chamber into multiple areas, each area is connected to the outlet of a hot air module, and the air volume of the hot air module outlet in each area is inconsistent. The closer to the outlet, the smaller the air volume and the lower the temperature in the area, to prevent the wet material from sintering due to excessive temperature after drying. A local control mechanism is set in each area. When the wet material accumulates too much in a local area or blocks a local area on the cloth plate, the local control mechanism in the corresponding area will generate heat accumulation, and the local control mechanism will make corresponding adjustments to increase the air volume in the local area on the cloth plate, blow away the accumulated wet material, or blow open the blocked through holes.

[0016] Furthermore, the local control mechanism includes a partition, a bimetallic strip and a soft cloth, wherein the partition is arranged between each two adjacent insulation boards, the partition is located between the air inlet of the heating chamber and the cloth plate, the partition is fixedly connected to the insulation board, the partition is fixedly connected to the heating chamber, three air holes are arranged on the partition, a fixing plate is arranged between two adjacent air holes, the fixing plates are respectively fixedly connected to the partition and the cloth plate, the two ends of the bimetallic strip are fixedly connected to the inner wall of the air hole, the soft cloth is arranged between the side of the bimetallic strip with a high thermal expansion coefficient and the inner wall of the air hole, and the soft cloth is respectively fixedly connected to the side of the bimetallic strip with a high thermal expansion coefficient and the inner wall of the air hole.

[0017] In the area formed by two adjacent insulation boards, the fixed plate, insulation board, partition and cloth plate divide the single area into a first area close to the air inlet of the heating chamber, a third area far from the air inlet of the heating chamber and a second area between the two fixed plates. When heat is accumulated in local areas within the first area, the second area and the third area, the bimetallic strip will bend, shrink the soft cloth, and expand the ventilation aperture of the corresponding ventilation hole, thereby increasing the airflow through the cloth plate in the corresponding area.

[0018] Furthermore, the closer the three vent holes are to the air inlet of the heating chamber, the smaller the apertures are.

[0019] The closer the vent is to the air inlet of the heating chamber, the smaller the aperture is, which compensates for the air intake of the vent far away from the air inlet of the heating chamber, so that the air intake of the three vents is evenly distributed, ensuring the stable flow of the fluid wet material on the distribution plate.

[0020] Furthermore, the hot air module includes a hot air box and a hot air pipe, the air outlet of the hot air box is connected to the inlet of the hot air pipe, the hot air pipe is provided with multiple air outlets, and the multiple air outlets of the hot air pipe are connected to the air inlet of the heating chamber in a one-to-one correspondence.

[0021] The hot air box is responsible for providing a stable source of hot air. A valve is provided at the air outlet of each hot air pipe to control the hot air outlet volume at the corresponding air outlet to ensure the steady flow of wet materials in the drying device.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. The wet material of the present invention enters from the feed pipe, and the driving motor drives the rotating rod to rotate, and the rotating rod transports the wet material to the crushing cover for crushing and breaking. When the wet material is crushed and broken in the crushing cover, hot air continuously flows into the crushing cover from the through holes on the crushing cover to heat and dry the wet material therein, so as to prevent the wet material from being difficult to break and sticking in the crushing cover. The height of the shock-absorbing base close to one end of the feed pipe is higher than that of one end of the discharge port, and the drying device is in an inclined state as a whole. Under the vibration generated by the vibration motor, the wet material in the feed pipe and the crushing cover is not easy to accumulate, and it is easier to fall onto the distribution plate for subsequent drying; 2. When wet material accumulates in a local area of ​​the material distribution plate or a through hole is blocked, heat will accumulate in the local area corresponding to the local adjustment mechanism, and the corresponding bimetallic strip will bend, shrink the soft cloth, and expand the ventilation aperture of the corresponding ventilation hole, so that the air flow through the material distribution plate in the corresponding area is increased, so as to blow away the wet material and make the wet material more evenly distributed, or blow open the blocked through hole to achieve the effect of uniform heating of the wet material; 3. When the wet material after being crushed and dispersed passes through the baffle, the wet material with a large amount of local accumulation will continuously collide with the baffle and flow to both sides at the same time, so that the wet material after passing through the baffle is evenly distributed on the radial cross section. The baffle also prolongs the drying time of the wet material before passing through the baffle, making the pre-drying of the wet material more sufficient and reducing the subsequent drying pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall appearance structure of a drying device with a local uniformity control function for zinc oxide production according to the present invention; Figure 2 This is a front structural schematic diagram of a drying device with a local uniformity control function for zinc oxide production according to the present invention; Figure 3 A schematic cross-sectional structure diagram of a drying device with a local uniformity control function for zinc oxide production according to the present invention; Figure 4 This is a schematic diagram of the structure of a distribution plate of a drying device with a local uniformity control function for zinc oxide production according to the present invention; Figure 5 This is a schematic diagram of the internal structure of a heating module of a drying device with a local uniformity control function for zinc oxide production according to the present invention; Figure 6 It is a partial structural schematic diagram of a crushing and feeding module of a drying device with a local uniformity control function for zinc oxide production according to the present invention; Figure 7 for Figure 5 A magnified schematic diagram of local A.

[0024] In the figure: 1. Crushing and feeding module; 2. Sealing cover; 3. Heating module; 4. Hot air module; 5. Vibrating motor; 6. Shock-absorbing base; 7. Cloth plate; 8. Air outlet pipe; 11. Feed pipe; 12. Driving motor; 13. Rotating rod; 14. Crushing cover; 15. Spiral sheet; 16. Crushing rod; 21. Discharge port; 22. Baffle; 31. Heating bin; 32. Heat insulation board; 33. Local control mechanism; 34. Partition; 35. Bimetallic strip; 36. Soft cloth; 37. Vent; 38. Fixing plate; 41. Hot air box; 42. Hot air pipe. DETAILED DESCRIPTION

[0025] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0026] Example: Figure 1 - Figure 7 As shown, the present invention provides a technical solution of a drying device with a local uniformity control function for zinc oxide production: like Figure 1 to Figure 4 As shown, the drying device includes a crushing and feeding module 1, a cover 2, a heating module 3, a hot air module 4, a vibration motor 5, a shock-absorbing base 6, a cloth plate 7 and an air outlet duct 8. The shock-absorbing base 6 is fixedly connected to the bottom end of the heating module 3 and is located at both ends of the bottom of the heating module 3. The cloth plate 7 is fixedly connected to the heating module 3 and is located at the top of the heating module 3. A through hole is provided on the cloth plate 7. The cover 2 is fixedly connected to the cloth plate 7 and is located at the top of the cloth plate 7. The hot air module 4 is connected to the heating module 3 through a pipeline. The air outlet duct 8 is connected to the cover 2. A discharge port 21 is provided at one end of the cover 2. The crushing and feeding module 1 is inserted into the cover 2 from the other end of the cover 2. The crushing and feeding module 1 is fixedly connected to the cover 2. The end of the shock-absorbing base 6 close to the crushing and feeding module 1 is higher than the end close to the discharge port 21. The vibration motor 5 is fixedly connected to the heating module 3 and is arranged on the side end surface of the heating module 3.

[0027] When the present invention is working, the hot air module 4 is first started for preheating. When the temperature of the drying device reaches a predetermined value, the crushing and feeding module 1 and the vibration motor 5 are started, and the drying device as a whole starts to vibrate, and the zinc oxide wet material is put into the crushing and feeding module 1. The crushing and feeding module 1 crushes and scatters the wet material. During the scattering process, the hot air in the drying device will also enter the crushing and feeding module 1 to preliminarily heat the wet material, accelerate the loss of moisture in the wet material, and enhance the crushing effect of the wet material. The wet material after crushing and drying falls on the cloth plate 7, and the hot air blown out by the hot air module 4 passes through the heating module 3 and then blows toward the cloth plate 7. The hot air is blown out through the through holes on the cloth plate 7. With the vibration of the drying device as a whole, the wet material is blown up by the hot air into a fluidized state, achieving uniform heating and more sufficient drying effect, and continuously flows to the discharge port 21, and finally flows out from the discharge port 21; when the wet material is accumulated too much in the local area of ​​the cloth plate 7, the corresponding area of ​​the heating module 3 will generate heat accumulation, and make adjustments to enhance the local air flow intensity, blow away the accumulated wet material, and make the drying more uniform.

[0028] like Figure 3 and Figure 6As shown in the figure, the crushing feed module 1 includes a feed pipe 11, a driving motor 12, a rotating rod 13 and a crushing cover 14. The feed pipe 11 communicates with the cover 2. The driving motor 12 is fixedly connected to the side end face of the feed pipe 11. The output shaft of the driving motor 12 is fixedly connected to the rotating rod 13. The rotating rod 13 is sequentially inserted into the feed pipe 11 and the crushing cover 14. The crushing cover 14 is arranged inside the cover 2 and is fixedly connected to the cover 2. The inlet of the crushing cover 14 covers the communication interface between the feed pipe 11 and the cover 2. The crushing cover 14 is provided with a plurality of through holes.

[0029] The wet material enters from the feed pipe 11. The driving motor 12 drives the rotating rod 13 to rotate. The rotating rod 13 transports the wet material into the crushing cover 14 for crushing and dispersing. When the wet material is crushed and dispersed in the crushing cover 14, hot air continuously flows into the crushing cover 14 from the through holes on the crushing cover 14 to heat and dry the wet material therein, preventing the wet material from being difficult to crush and sticking inside the crushing cover 14. Moreover, the height of one end of the shock-absorbing base 6 close to the feed pipe 11 is higher than the height of one end of the discharge port 21. The drying device is in an inclined state as a whole. Under the vibration generated by the vibration motor 5, the wet material in the feed pipe 11 and the crushing cover 14 is not easy to accumulate and is more likely to fall onto the cloth plate 7 for subsequent drying.

[0030] As Figure 6 shown in the figure, a spiral blade 15 is arranged on the part of the rotating rod 13 located inside the feed pipe 11, and a crushing rod 16 is arranged on the part of the rotating rod 13 located inside the crushing cover 14.

[0031] When the wet material falls into the feed pipe 11, the spiral blade 15 rotates under the drive of the driving motor 12 to realize the spiral feeding of the wet material and send the wet material into the crushing cover 14. The rotating crushing rod 16 crushes and disperses it, and then it falls onto the cloth plate 7 through the through holes on the crushing cover 14.

[0032] As Figure 3 shown in the figure, a baffle 22 is arranged on the inner wall of the cover 2. There is a gap between the baffle 22 and the cloth plate 7. The baffle 22 is located between the discharge port 21 and the crushing cover 14.

[0033] The wet material that has been crushed and dispersed is blown up by the hot air on the cloth plate 7 and is in a fluid state. And under the vibration of the drying device as a whole, it continuously moves towards the baffle 22. When passing through the baffle 22, the wet material with a relatively large local accumulation continuously impacts on the baffle 22 and flows to both sides at the same time, realizing that the wet material after passing through the baffle 22 is evenly distributed on the radial cross-section. Moreover, the baffle 22 also prolongs the drying time of the wet material before passing through the baffle 22, making the pre-drying of the wet material more sufficient and reducing the subsequent drying pressure.

[0034] As Figure 1 and Figure 3As shown, the air outlet pipe 8 is provided with a plurality of inlets, one of the inlets of the air outlet pipe 8 is arranged between the baffle plate 22 and the inlet of the crushing cover 14 , and the remaining inlets of the air outlet pipe 8 are arranged between the baffle plate 22 and the discharge port 21 .

[0035] After the wet material is dried, the moisture will rise with the hot air and enter the air outlet pipe 8 for discharge, thereby reducing the air humidity in the drying device and ensuring the drying efficiency and quality.

[0036] like Figure 3 and Figure 5 As shown, the heating module 3 includes a heating chamber 31, a heat insulation board 32 and a local regulating mechanism 33. The side end surface of the heating chamber 31 is provided with a vibration motor 5. The heating chamber 31 and the vibration motor 5 are fixedly connected. The heat insulation board 32 is provided with a plurality of pieces. The plurality of heat insulation boards 32 and the heating chamber 31 are fixedly connected. The plurality of heat insulation boards 32 separate the heating chamber 31 into a plurality of sections in the long axis direction. The local regulating mechanism 33 is provided between each two adjacent heat insulation boards 32. The local regulating mechanism 33 and each two adjacent heat insulation boards 32 are fixedly connected. An air inlet of the heating bin 31 is arranged between each two adjacent insulation boards 32, an air inlet is also arranged between the insulation board 32 near one end of the discharge port 21 and one end of the heating bin 31 near the discharge port 21, and an air inlet is also arranged between the insulation board 32 near one end of the feed pipe 11 and one end of the heating bin 31 near the feed pipe 11. All the air inlets of the heating bin 31 are located below the local control mechanism 33, and all the air inlets of the heating bin 31 are connected to multiple air outlets of the hot air module 4 in a one-to-one correspondence.

[0037] A plurality of heat insulation plates 32 divide the heating bin 31 into a plurality of areas, each area is connected to an air outlet of a hot air module 4, and the air volume of the air outlet of the hot air module 4 in each area is inconsistent. The closer to the discharge port 21, the smaller the air volume and the lower the temperature in the area are, so as to prevent the wet material from sintering due to excessive temperature after drying. A local regulating mechanism 33 is arranged in each area. When the wet material accumulates too much in a local area or blocks a local area on the cloth plate 7, the local regulating mechanism 33 in the corresponding area will generate accumulated heat, and the local regulating mechanism 33 will make corresponding adjustments to increase the air volume in the local area on the cloth plate 7, so as to blow away the accumulated wet material or open the blocked through hole.

[0038] like Figure 5 and Figure 7As shown, the local control mechanism 33 includes a partition 34, a bimetallic strip 35 and a soft cloth 36, the partition 34 is arranged between each adjacent two heat insulation plates 32, the partition 34 is located between the air inlet of the heating chamber 31 and the cloth plate 7, the partition 34 is fixedly connected to the heat insulation plate 32, the partition 34 is fixedly connected to the heating chamber 31, three air holes 37 are arranged on the partition 34, a fixing plate 38 is arranged between two adjacent air holes 37, the fixing plates 38 are respectively fixedly connected to the partition 34 and the cloth plate 7, the two ends of the bimetallic strip 35 are fixedly connected to the inner wall of the air hole 37, the soft cloth 36 is arranged between the side with a high thermal expansion coefficient of the bimetallic strip 35 and the inner wall of the air hole 37, and the soft cloth 36 is respectively fixedly connected to the side with a high thermal expansion coefficient of the bimetallic strip 35 and the inner wall of the air hole 37.

[0039] In the area formed by two adjacent insulation boards 32, the fixed plate 38, the insulation board 32, the partition 34 and the cloth plate 7 divide the single area into a first area close to the air inlet of the heating chamber 31, a third area away from the air inlet of the heating chamber 31 and a second area between the two fixed plates 38. When heat is accumulated in local areas within the first area, the second area and the third area, the bimetallic strip 35 will bend, shrink the soft cloth 36, and expand the ventilation aperture of the corresponding ventilation hole 37, so that the air flow through the cloth plate 7 in the corresponding area increases.

[0040] like Figure 5 As shown, the closer the three vent holes 37 are to the air inlet of the heating chamber 31 , the smaller the apertures are.

[0041] The closer the vent hole 37 is to the air inlet of the heating chamber 31 , the smaller the aperture is, which compensates for the air intake of the vent hole 37 far away from the air inlet of the heating chamber 31 , so that the air intake of the three vent holes 37 is evenly distributed, ensuring the stable flow of the fluidized wet material on the distribution plate 7 .

[0042] like Figure 1 As shown, the hot air module 4 includes a hot air box 41 and a hot air pipe 42, the air outlet of the hot air box 41 is connected to the inlet of the hot air pipe 42, the hot air pipe 42 is provided with multiple air outlets, and the multiple air outlets of the hot air pipe 42 are connected to the air inlet of the heating chamber 31 in a one-to-one correspondence.

[0043] The hot air box 41 is responsible for providing a stable hot air source, and each hot air pipe 42 is provided with a valve at the air outlet to control the hot air outlet volume at the corresponding air outlet to ensure the steady flow of the wet material in the drying device.

[0044] Working principle of the present invention: When the present invention is working, the hot air module 4 is first started for preheating. When the temperature in the drying device reaches a predetermined value, the crushing feed module 1 and the vibration motor 5 are started, and the drying device as a whole starts to vibrate. The zinc oxide wet material is put into the feed pipe 11, and the driving motor 12 drives the rotating rod 13 to rotate. The rotating rod 13 transports the wet material to the crushing cover 14 for crushing and breaking. The crushed and dried wet material falls onto the cloth plate 7. The hot air blown out by the hot air module 4 passes through the heating module 3 and then blows toward the cloth plate 7. The hot air passes through the cloth plate 7. The wet material is blown out through the through holes on the drying device, and with the overall vibration of the drying device, the hot air blows the wet material into a fluidized state, achieving uniform heating and more complete drying effects, and continuously flows to the discharge port 21, and finally flows out from the discharge port 21; when too much wet material accumulates in a local area of ​​the cloth plate 7, heat will accumulate in the corresponding area of ​​the local regulating mechanism 33, and the bimetallic strip 35 in the local corresponding area will bend, shrinking the soft cloth 36 and expanding the ventilation aperture of the corresponding ventilation hole 37, so that the air flow through the cloth plate 7 in the corresponding area is increased.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drying device with local uniformity control function for zinc oxide production, characterized in that: The drying device comprises a crushing and feeding module (1), a cover (2), a heating module (3), a hot air module (4), a vibration motor (5), a shock-absorbing base (6), a distribution plate (7) and an air outlet pipe (8); the shock-absorbing base (6) is fixedly connected to the bottom end of the heating module (3) and is located at both ends of the bottom of the heating module (3); the distribution plate (7) is fixedly connected to the heating module (3) and is located at the top of the heating module (3); a through hole is provided on the distribution plate (7); the cover (2) is fixedly connected to the distribution plate (7) and is located at the top of the distribution plate (7); At the top, the hot air module (4) and the heating module (3) are connected by a pipeline, the air outlet pipe (8) is connected to the cover (2), one end of the cover (2) is provided with a discharge port (21), the crushing feed module (1) is inserted into the cover (2) from the other end of the cover (2), the crushing feed module (1) and the cover (2) are fixedly connected, the end of the shock-absorbing base (6) close to the crushing feed module (1) is higher than the end close to the discharge port (21), and the vibration motor (5) and the heating module (3) are fixedly connected and arranged on the side end surface of the heating module (3).

2. The drying device with local uniformity control function for zinc oxide production according to claim 1, characterized in that: The crushing feed module (1) comprises a feed pipe (11), a drive motor (12), a rotating rod (13) and a crushing cover (14); the feed pipe (11) is connected to the cover (2); the drive motor (12) and the side end surface of the feed pipe (11) are fixedly connected; the output shaft of the drive motor (12) and the rotating rod (13) are fixedly connected; the rotating rod (13) is inserted into the feed pipe (11) and the crushing cover (14) in sequence; the crushing cover (14) is arranged inside the cover (2); the crushing cover (14) and the cover (2) are fixedly connected; the inlet of the crushing cover (14) covers the communication interface between the feed pipe (11) and the cover (2); and the crushing cover (14) is provided with a plurality of through holes.

3. A drying device with a local uniformity control function for zinc oxide production according to claim 2, characterized in that: The portion of the rotating rod (13) located in the feed pipe (11) is provided with a spiral sheet (15), and the portion of the rotating rod (13) located in the crushing cover (14) is provided with a crushing rod (16).

4. The drying device with local uniformity control function for zinc oxide production according to claim 3, characterized in that: A baffle (22) is provided on the inner wall of the sealing cover (2), a gap is left between the baffle (22) and the material distribution plate (7), and the baffle (22) is located between the discharge port (21) and the crushing cover (14).

5. The drying device with local uniformity control function for zinc oxide production according to claim 4, characterized in that: The air outlet pipe (8) is provided with a plurality of inlets, one of the inlets of the air outlet pipe (8) is arranged between the baffle plate (22) and the inlet of the crushing cover (14), and the remaining inlets of the air outlet pipe (8) are arranged between the baffle plate (22) and the discharge port (21).

6. A drying device with a local uniformity control function for zinc oxide production according to claim 5, characterized in that: The heating module (3) comprises a heating chamber (31), a heat insulation board (32) and a local control mechanism (33); a vibration motor (5) is arranged on a side end surface of the heating chamber (31); the heating chamber (31) and the vibration motor (5) are fixedly connected; a plurality of heat insulation boards (32) are arranged; the plurality of heat insulation boards (32) and the heating chamber (31) are fixedly connected; the plurality of heat insulation boards (32) divide the heating chamber (31) into a plurality of sections in the longitudinal direction; the local control mechanism (33) is arranged between each two adjacent heat insulation boards (32); the local control mechanism (33) and each two adjacent heat insulation boards (32) are fixedly connected. The heat insulation plates (32) are connected to each other in a fixed manner, an air inlet of the heating bin (31) is provided between each two adjacent heat insulation plates (32), an air inlet is also provided between the heat insulation plate (32) at one end close to the discharge port (21) and one end of the heating bin (31) close to the discharge port (21), and an air inlet is also provided between the heat insulation plate (32) at one end close to the feed pipe (11) and one end of the heating bin (31) close to the feed pipe (11), all the air inlets of the heating bin (31) are located below the local control mechanism (33), and all the air inlets of the heating bin (31) are connected to the multiple air outlets of the hot air module (4) in a one-to-one correspondence.

7. A drying device with a local uniformity control function for zinc oxide production according to claim 6, characterized in that: The local control mechanism (33) comprises a partition (34), a bimetallic strip (35) and a soft cloth (36); the partition (34) is arranged between each two adjacent heat insulation boards (32); the partition (34) is located between the air inlet of the heating chamber (31) and the cloth plate (7); the partition (34) and the heat insulation board (32) are fixedly connected; the partition (34) and the heating chamber (31) are fixedly connected; three ventilation holes (37) are arranged on the partition (34); and the air inlet (37) is located between two adjacent heat insulation boards (32). A fixing plate (38) is provided between the vent holes (37), the fixing plate (38) being fixedly connected to the partition plate (34) and the cloth plate (7) respectively, the two ends of the bimetallic strip (35) being fixedly connected to the inner wall of the vent hole (37), the soft cloth (36) being provided between a side of the bimetallic strip (35) having a high thermal expansion coefficient and the inner wall of the vent hole (37), the soft cloth (36) being fixedly connected to a side of the bimetallic strip (35) having a high thermal expansion coefficient and the inner wall of the vent hole (37) respectively.

8. The drying device with local uniformity control function for zinc oxide production according to claim 7, characterized in that: The closer the three ventilation holes (37) are to the air inlet of the heating chamber (31), the smaller their hole diameters become.

9. A drying device with a local uniformity control function for zinc oxide production according to claim 8, characterized in that: The hot air module (4) comprises a hot air box (41) and a hot air pipe (42); the air outlet of the hot air box (41) is connected to the inlet of the hot air pipe (42); the hot air pipe (42) is provided with a plurality of air outlets; the plurality of air outlets of the hot air pipe (42) are connected to the air inlet of the heating chamber (31) in a one-to-one correspondence.

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