A drying device for zinc sulfide production

Abstract

The present invention discloses a drying device for zinc sulfide production, which relates to the technical field of zinc sulfide production, and includes: a dryer housing, a processing mechanism is arranged inside the dryer housing, the processing mechanism includes a stirring assembly and a rotating cylinder assembly, the stirring assembly includes: a stirring base rod, a plurality of stirring support rods are arranged on the side surface of the stirring base rod, a movable trigger top block is arranged on one side surface of the stirring support rod, an elastic block is arranged on the side surface of the trigger top block close to the stirring support rod, the rotating cylinder assembly includes: an inner cylinder body, the inner cylinder body is located inside the heating cavity, and a plurality of air flow rings are arranged on the surface of the inner cylinder body. In this solution, by setting the stirring assembly and the rotating cylinder assembly, it is possible to break large filter cakes during the stirring process, improve the fragmentation degree of the material, accelerate the drying speed and improve the drying quality.

Description

Technical Field

[0001] The present invention relates to the technical field of zinc sulfide production, and specifically to a drying device for zinc sulfide production. Background Art

[0002] The drying devices used in zinc sulfide production, especially rotary flash dryers, are equipment types widely used in multiple industries such as chemical engineering, medicine, building materials, and food. Such devices are designed specifically for processing granular, powdery, paste-like, and filter cake-like pseudo-agglomerated materials, and have the significant advantages of small floor area, low energy consumption, high thermal efficiency, and continuous large-batch production.

[0003] In the production process of zinc sulfide, there are still some inconveniences in traditional drying devices. Traditional drying devices usually adopt a single stirring and heating method. The heat source received by the material during the drying process is generally heated from one side of the loading cylinder. During the drying process, it is easy to have a situation where the temperatures on both sides of the cylinder are different. The temperature on the side close to the heat source is generally higher, while the temperature on the other side is different because it is far from the heat source. This will affect the drying effect of the internal material, resulting in local overheating or insufficient drying. Moreover, when the material is broken by the stirring blades in the cylinder, since the zinc sulfide filter cake will become sticky after heating, it is easy to adhere to the surface of the stirring blades during the stirring process, reducing the overall crushing efficiency of the equipment. The crushing effect of the adhered stirring blades will also decline. The size and thickness of the filter cake are generally inconsistent. When facing some larger and thicker filter cakes, they cannot be well crushed, resulting in poor drying of their interior and affecting the overall drying effect of the material. Summary of the Invention

[0004] The purpose of the present invention is to provide a drying device for zinc sulfide production to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution. A drying device for zinc sulfide production includes:

[0006] A dryer housing, inside which a processing mechanism is provided. The processing mechanism includes a stirring assembly and a rotating cylinder assembly;

[0007] The stirring assembly includes: a stirring base rod, on the side surface of which there are a plurality of stirring support rods. On one side surface of each stirring support rod, there is a movable trigger top block. On the side surface of the trigger top block close to the stirring support rod, there is an elastic block. The two sides of the elastic block are respectively connected to the side surface of the stirring support rod and one side surface of the trigger top block. On both the upper and lower sides of the trigger top block, there are movable tearing side plates. An insertion groove is also formed between the tearing side plates and the trigger top block. On the side surface of the stirring support rod close to the tearing side plates, there is a positioning convex block that cooperates with the insertion groove.

[0008] The rotating cylinder assembly includes: an inner cylinder body, which is located inside the heating chamber. On the surface of the inner cylinder body, there are a plurality of air flow rings. At the uppermost part of the inner cylinder body, there is a sliding ring. On the inner side wall of the dryer housing, there is a limiting slideway that cooperates with the sliding ring. On the bottom surface of the inner cylinder body, there is a ventilation mesh plate.

[0009] Further, on the side surface of the tearing side plate close to the trigger top block, there is also a limiting slider that facilitates improving the stability of the tearing side plate during sliding and prevents the tearing side plate from completely separating from the trigger top block. A limiting spring is also provided between one end of the limiting slider and the trigger top block.

[0010] Further, on one end surface of the trigger top block, there are fixed teeth. On both the upper and lower side surfaces of the trigger top block, there are hidden grooves. On the surface of the hidden grooves, there are elastic connecting plates. At the end of the elastic connecting plate facing away from the hidden groove, there is a material removing wiping block. Inside the hidden groove, there is also a top plate convex block that cooperates with the elastic connecting plate. On the side surface of the tearing side plate close to the hidden groove, there is an inner slideway groove that facilitates the sliding of the material removing wiping block. On both sides of the material removing wiping block, there are limiting convex posts. On both side surfaces inside the inner slideway groove, there are also limiting sliding grooves that cooperate with the limiting convex posts.

[0011] Further, on the bottom surface of the inner cylinder body, there is also an adjustment groove. On both sides of the adjustment groove, there are force receiving grooves. At the center of the adjustment groove, there is a rotatable rotating shaft. The upper surface of the rotating shaft is fixedly connected to the bottom surface of the stirring base rod. On the surface of the rotating shaft, there is also an annular hoop that cooperates with the adjustment groove. On both side surfaces of the annular hoop, there are elastic telescopic blocks. At the end of the elastic telescopic block, there is a clamping block that cooperates with the force receiving groove.

[0012] Further, the processing mechanism further includes a driving component, and the driving component includes: a driven wheel, the top surface of the driven wheel is fixedly connected to the bottom surface of the rotating shaft, an axle sleeve is further arranged outside the rotating shaft, and the axle sleeve can drive the rotating shaft to lift within a small range. One side surface of the driven wheel is provided with a driving motor, one side surface of the driving motor is provided with a sliding mounting plate, the sliding mounting plate is slidably connected to the bottom support frame below the dryer housing, the end of the output shaft of the driving motor is provided with a main runner, a transmission belt is connected between the main runner and the driven wheel, a small motor is arranged on the bottom surface of the bottom support frame, a threaded rod is arranged on the output end of the small motor, and a lifting plate is fixedly installed between the axle sleeve at the bottom of the bottom support frame and the sliding mounting plate. A threaded hole matching the threaded rod is opened at the center of the lifting plate.

[0013] Further, the processing mechanism further includes: a feeding component, and the feeding component includes: a feeding pipe, a clamping block matching the feeding pipe is arranged inside the dryer housing, a feeding port is arranged on the surface of the feeding pipe, an air outlet plate is arranged at the center of the feeding port, the air outlet plate is of a hollow structure and an air outlet is opened on the bottom surface, and an air guiding pipe is connected between the upper surface of the air outlet plate and the drying box body.

[0014] Further, the bottom surface of the dryer housing is provided with a bottom support frame, a suction fan is arranged on one side surface of the dryer housing, an air outlet is arranged at one end of the suction fan, a heating barrel is arranged on one side of the air outlet, a drying box body is arranged on the side surface of the heating barrel facing away from the suction fan, the drying box body is sleeved on the surface of the dryer housing, a main classifier is further arranged on one side of the dryer housing, a discharge port is opened on the side surface of the dryer housing close to the main classifier, a cyclone separator body is arranged on one side surface of the discharge port, a fixed bottom frame is arranged on the bottom surface of the cyclone separator body, a secondary fan is arranged on one side of the fixed bottom frame, and an exhaust pipe is arranged above the secondary fan. Among them, the cyclone separator body, the main classifier and the discharge port are all connected through a transmission pipe, and the secondary fan and the cyclone separator body are connected through an air outlet pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this solution, by setting up a stirring assembly, through the rotation of the stirring base rod and the stirring support rod, the materials are continuously stirred and mixed to ensure that the materials are evenly heated. The trigger top block and the tearing side plate on the stirring support rod can break when encountering a large filter cake during the stirring process, effectively improving the degree of fragmentation of the materials, making the materials finer, which helps to accelerate the drying speed and improve the drying quality. The hidden groove, the elastic connecting plate, and the material removing wiping block can automatically clean the residual materials on the trigger top block and the tearing side plate during the stirring process, preventing the accumulation of materials from affecting the stirring effect.

[0017] 2. In this solution, by setting up a rotating cylinder assembly, it can rotate within the drying machine housing through the sliding ring and the limiting slideway. Driven by the driving assembly, the inner cylinder can rotate once at regular intervals to adjust the positions on both sides, ensuring the uniformity of the materials during the drying process and avoiding uneven drying caused by the accumulation or fixed position of the materials. A plurality of air flow rings are arranged on the surface of the inner cylinder in the rotating cylinder assembly, which helps the hot air to be evenly distributed inside the cylinder, improving the utilization rate of the hot air and the drying efficiency. At the same time, the ventilation net plate can enable the hot air to smoothly enter the interior of the inner cylinder during use and conduct sufficient heat exchange with the materials.

[0018] 3. In this solution, by setting up a driving assembly, the driving motor drives the main runner to rotate, and then drives the rotating shaft and the stirring base rod to rotate through the transmission belt, ensuring the normal operation of the equipment and the smooth progress of the drying process. The small motor in the driving assembly adjusts the height of the sliding mounting plate through the threaded rod and the lifting plate, and then realizes the regular rotation of the rotating cylinder assembly, ensuring the uniformity of the materials during the drying process, and also improving the automation degree and drying efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the rear view structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the drying box of the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the drying machine housing of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the inner cylinder of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the stirring support rod of the present invention;

[0025] Figure 7 It is a schematic diagram of the internal structure of the stirring assembly of the present invention;

[0026] Figure 8 This is a schematic diagram of the bottom structure of the inner cylinder of the present invention.

[0027] In the figure: 1. Dryer housing; 2. Exhaust fan; 3. Heating barrel; 4. Drying box body; 5. Bottom support frame; 6. Main classifier; 7. Transfer pipe; 8. Discharge port; 9. Cyclone separator body; 10. Air outlet pipe; 11. Rotating shaft; 12. Driven wheel; 13. Lifting plate; 14. Small motor; 15. Driving motor; 16. Exhaust cylinder; 17. Auxiliary fan; 18. Fixed bottom frame; 19. Feed pipe; 20. Feeding port; 21. Air outlet plate; 22. Transmission belt; 23. Air guiding pipe; 24. Heating chamber; 25. Engaging block; 26. Inner cylinder; 27. Limiting slideway; 28. Air flowing ring; 29. Sliding ring; 30. Stirring base rod; 31. Stirring support rod; 32. Trigger top block; 33. Tearing side plate; 34. Fixed teeth; 35. Insertion groove; 36. Elastic block; 37. Top positioning convex block; 38. Limiting slider; 39. Elastic connecting plate; 40. Material removing wiping block; 41. Hidden groove; 42. Top plate convex block; 43. Inner groove of slideway; 44. Ventilation net plate; 45. Position adjusting groove; 46. Annular hoop; 47. Elastic telescopic block. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1: Please refer to Figures 1 to 8 , a drying device for zinc sulfide production, comprising:

[0030] The dryer housing 1 is provided with a bottom support frame 5 on its bottom surface. One side surface of the dryer housing 1 is provided with an exhaust fan 2. One end of the exhaust fan 2 is provided with an air outlet. One side of the air outlet is provided with a heating barrel 3. The side surface of the heating barrel 3 facing away from the exhaust fan 2 is provided with a drying box body 4. The drying box body 4 is sleeved on the surface of the dryer housing 1. One side of the dryer housing 1 is also provided with a main classifier 6. The side surface of the dryer housing 1 close to the main classifier 6 is provided with a discharge port 8. One side surface of the discharge port 8 is provided with a cyclone separator body 9. The bottom surface of the cyclone separator body 9 is provided with a fixed bottom frame 18. One side of the fixed bottom frame 18 is provided with a secondary fan 17. Above the secondary fan 17 is provided with an exhaust pipe 16. Among them, the cyclone separator body 9, the main classifier 6 and the discharge port 8 are all connected through a transfer pipe 7. The secondary fan 17 and the cyclone separator body 9 are connected through an air outlet pipe 10. A processing mechanism is arranged inside the dryer housing 1. The processing mechanism includes a stirring assembly and a rotating drum assembly;

[0031] During use, the material (zinc sulfide filter cake) is put into the dryer housing 1 by the staff. At this time, the exhaust fan 2 starts to work, extracts the heated hot air from the heating barrel 3, and sends this hot air into the drying box body 4. The drying box body 4 is closely sleeved outside the dryer housing 1 to ensure that the hot air can fully contact the material inside the dryer housing 1, so as to achieve an efficient drying effect. Inside the dryer housing 1, the stirring assembly of the processing mechanism continuously stirs and mixes the material through its stirring base rod and stirring support rod to ensure that the material is evenly heated and avoid local overheating or uneven drying. The rotating drum assembly enables the hot air to form a rotating airflow field inside the dryer housing 1, which helps the full contact and heat exchange between the hot air and the material, increases the contact area between the material particles, further improves the heat exchange efficiency, and also speeds up the drying speed. When the material reaches the predetermined drying degree, it will be discharged from the dryer housing 1 through the discharge port 8. At this time, the material will enter the main classifier 6 for preliminary classification. The main classifier 6 classifies the material into different grades according to the particle size and density of the material. The classified material will be sent into the cyclone separator body 9 through the transfer pipe 7 for further separation and purification. The cyclone separator body 9 uses centrifugal force to separate the fine particles and dust in the material and send them into the secondary fan 17 through the air outlet pipe 10. The secondary fan 17 generates a strong suction force to discharge these fine particles and dust out of the equipment through the exhaust pipe 16 to ensure the purity and quality of the final product.

[0032] The stirring assembly includes: a stirring base rod 30, a plurality of stirring support rods 31 are arranged on the side surface of the stirring base rod 30, a movable trigger top block 32 is arranged on one side surface of the stirring support rod 31, an elastic block 36 is arranged on the side surface of the trigger top block 32 close to the stirring support rod 31, and the two sides of the elastic block 36 are respectively connected to the stirring support rod 31 and the side surface of the trigger top block 32, and the upper and lower sides of the trigger top block 32 are provided with movable tear side plates 33, and the side surface of the tear side plate 33 close to the trigger top block 32 is also provided with a limiting slider 38 that is convenient for improving the stability of the tear side plate 33 when sliding and preventing the tear side plate 33 from completely separating from the trigger top block 32, and a limiting spring is also arranged between one end of the limiting slider 38 and the trigger top block 32, and a limiting spring is arranged between the tear side plate 33 and the trigger top block 32. An insertion groove 35 is also provided, and a top position protrusion 37 matching with the insertion groove 35 is provided on a side surface of the stirring support rod 31 close to the tearing side plate 33, and a fixing tooth 34 is provided on one end surface of the triggering top block 32. Hidden grooves 41 are provided on the upper and lower surfaces of the triggering top block 32, and an elastic connecting plate 39 is provided on the surface of the hidden groove 41. A material removal wiper 40 is provided at one end of the elastic connecting plate 39 away from the hidden groove 41, and a top plate protrusion 42 matching with the elastic connecting plate 39 is provided inside the hidden groove 41. A slideway inner groove 43 for facilitating the sliding of the material removal wiper 40 is provided on one side surface of the tearing side plate 33 close to the hidden groove 41, and limiting convex piles are provided on both sides of the material removal wiper 40, and limiting slide grooves matching with the limiting convex piles are also provided on the inner two side surfaces of the slideway inner groove 43;

[0033] The stirring assembly drives a plurality of stirring support rods 31 to rotate through the stirring base rod 30, thereby crushing the filter cake material in the dryer housing 1. However, the size of the filter cake is not fixed, and the thicker filter cake contains more liquid, which will affect the drying effect during the drying process due to its thickness. The trigger top block 32 and the tearing side plate 33 on the stirring support rod 31 break when encountering a larger filter cake during the stirring process. When the trigger top block 32 contacts the material block, the trigger top block 32 will penetrate into the interior of the larger filter cake. The fixing teeth 34 at the ends of the tearing side plates 33 on both sides thereof can temporarily fix the filter cake on its surface. At the same time, after the trigger top block 32 is impacted by the filter cake, it will move to one side and drive the tearing side plates 33 to move synchronously. During the movement of the trigger top block 32, the insertion groove 35 on the side surface of the tearing side plate 33 gradually contacts the top position convex block 37, and as the top position convex block 37 is inserted into the insertion groove 35, the tearing side plates 33 on both sides move to both sides respectively, and the filter cake stuck at the end of the trigger top block 32 is torn from between them. The larger the contacted filter cake, the greater the impact force received by the trigger top block 32, and the deeper the depth of the top position convex block 37 inserted into the insertion groove 35, the greater the moving amplitude of the tearing side plates 33 on both sides, and the stronger the tearing force generated. During the expansion process of the tearing side plates 33 on both sides, the elastic connecting plate 39 and the material removing wiping block 40 in the hidden groove 41 are designed to clean the residual materials on the trigger top block 32 and the tearing side plates 33 during the stirring process, preventing the accumulation of materials from affecting the stirring effect. When the tearing side plates 33 are in the closed state, the elastic connecting plate 39 is pushed by the top plate convex block 42 and remains in a bent state, and the material removing wiping block 40 does not reach the end of the tearing side plate 33 due to the bending of the elastic connecting plate 39. When the tearing side plates 33 expand, as the elastic connecting plate 39 gradually loses the pushing effect of the top plate convex block 42 and straightens due to elasticity, at this time, the material removing wiping block 40 slides inside the inner groove 43 of the slideway, reaches the end of the tearing side plate 33, and uses the elasticity when the elastic connecting plate 39 straightens to increase the sliding speed of the material removing wiping block 40, generating a certain impact force, so that when the material removing wiping block 40 reaches the end of the tearing side plate 33, it can remove the torn filter cake stuck at the end of the tearing side plate 33. Subsequently, the elastic block 36 is reset, and the limiting spring connecting the limiting slider 38 and the trigger top block 32 also starts to contract, so that the tearing side plates 33 on both sides are retracted back to the side surface of the trigger top block 32 again, waiting for the next filter cake tearing operation.

[0034] The rotary drum assembly includes: an inner cylinder body 26, which is located inside the heating chamber 24. A plurality of air flow rings 28 are arranged on the surface of the inner cylinder body 26. A sliding ring 29 is arranged at the uppermost part of the inner cylinder body 26. A limiting slideway 27 that cooperates with the sliding ring 29 is arranged on the inner side wall of the dryer housing 1. A ventilation net plate 44 is arranged on the bottom surface of the inner cylinder body 26. An adjustment groove 45 is also opened on the bottom surface of the inner cylinder body 26. Force-receiving grooves are also opened on both sides of the adjustment groove 45. A rotatable rotating shaft 11 is arranged at the center of the adjustment groove 45. The upper surface of the rotating shaft 11 is fixedly connected to the bottom surface of the stirring base rod 30. An annular hoop 46 that cooperates with the adjustment groove 45 is also sleeved on the surface of the rotating shaft 11. Elastic telescopic blocks 47 are arranged on both side surfaces of the annular hoop 46. Engaging blocks 25 that cooperate with the force-receiving grooves are arranged at the ends of the elastic telescopic blocks 47;

[0035] The inner cylinder body 26 in the rotary drum assembly is located inside the heating chamber 24 and can rotate stably in the dryer housing 1 through the sliding ring 29 and the limiting slideway 27. After the drying operation has been carried out for a period of time, the rotary drum assembly will rotate once under the drive of the drive assembly to adjust the positions on both sides, so as to ensure the uniformity of drying of the materials in the inner cylinder body 26. The plurality of air flow rings 28 on the surface of the inner cylinder body 26 help the hot air to be evenly distributed in the cylinder, improving the drying efficiency. The ventilation net plate 44 allows the hot air to pass through and enter the inside of the inner cylinder body 26 to contact the materials, achieving the drying purpose. The rotating shaft 11 can rise under the control of the drive assembly and cooperate with the adjustment groove 45 on the bottom surface of the inner cylinder body 26 through the annular hoop 46 and the elastic telescopic blocks 47, so that the stirring base rod 30 drives the inner cylinder body 26 to rotate together during the stirring process. Under the control of the drive assembly, the rotating shaft 11 drives the annular hoop 46 to rise. The annular hoop 46 drives the engaging block 25 to enter the inside of the adjustment groove 45. After the engaging block 25 rotates to a position corresponding to the force-receiving groove, the elastic telescopic block 47 drives the engaging block 25 to extend and fit with the force-receiving groove. Subsequently, the inner cylinder body 26 can be driven to rotate synchronously when the rotating shaft 11 rotates. After rotating to a certain extent, the drive motor drives the rotating shaft 11 to descend again, and the inner cylinder body 26 stops rotating.

[0036] The processing mechanism further includes a driving assembly, and the driving assembly includes: a driven wheel 12, the top surface of the driven wheel 12 is fixedly connected to the bottom surface of the rotating shaft 11, and a shaft sleeve is further arranged outside the rotating shaft 11. The shaft sleeve can drive the rotating shaft 11 to perform a small range of lifting. A driving motor 15 is arranged on one side surface of the driven wheel 12, a sliding mounting plate is arranged on one side surface of the driving motor 15, the sliding mounting plate is slidably connected to the bottom support frame 5 below the dryer housing 1, the end of the output shaft of the driving motor 15 is provided with a main runner, a transmission belt 22 is connected between the main runner and the driven wheel 12, a small motor 14 is arranged on the bottom surface of the bottom support frame 5, a threaded rod is arranged on the output end of the small motor 14, and a lifting plate 13 is fixedly installed between the shaft sleeve at the bottom of the bottom support frame 5 and the sliding mounting plate. A threaded hole matching the threaded rod is opened at the center of the lifting plate 13;

[0037] The driving assembly drives the main runner to rotate through the driving motor 15, the main runner is connected to the driven wheel 12 through the transmission belt 22, thereby driving the rotating shaft 11 and the stirring base rod 30 to rotate. The shaft sleeve allows the rotating shaft 11 to perform a small range of lifting adjustment during the driving process so as to drive the rotating drum assembly to rotate. The small motor 14 will regularly adjust the height of the sliding mounting plate reciprocally through the threaded rod and the lifting plate 13, and then make the rotating drum assembly rotate once to ensure that the internal rotating drum assembly can maintain a uniform drying effect.

[0038] The processing mechanism further includes: a feeding assembly, and the feeding assembly includes: a feeding pipe 19, a clamping block 25 matching the feeding pipe 19 is arranged inside the dryer housing 1, a feeding port 20 is arranged on the surface of the feeding pipe 19, an air outlet plate 21 is arranged at the center of the feeding port 20, the air outlet plate 21 is of a hollow structure and an air outlet is opened on the bottom surface, and an air guiding pipe 23 is connected between the upper surface of the air outlet plate 21 and the drying box body 4;

[0039] The feeding assembly introduces materials into the dryer housing 1 through the feeding pipe 19. The air outlet plate 21 at the center of the feeding port 20 is designed to be of a hollow structure, an air outlet is opened on the bottom surface, and is connected to the drying box body 4 through the air guiding pipe 23. During the feeding process, hot air is blown into the feeding pipe 19 through the air outlet of the air outlet plate 21 to preheat and initially dry the materials, which helps the smooth progress of the subsequent drying process. At the same time, the downward wind force generated by the air outlet plate 21 can also make the materials shake slightly, which helps to prevent the materials from being blocked or piled up during the feeding process.

[0040] The working principle of the present invention is:

[0041] During use, the material (zinc sulfide filter cake) is put into the dryer housing 1 by the staff. The feeding assembly introduces the material into the dryer housing 1 through the feed pipe 19. The air outlet plate 21 at the center of the feeding port 20 is designed with a hollow structure, and air outlets are opened on the bottom surface, which is connected to the air duct 23 between the drying box body 4. During the feeding process, hot air is blown into the feed pipe 19 through the air outlets of the air outlet plate 21 to preheat and preliminarily dry the material, which helps the subsequent drying process proceed smoothly. At the same time, the downward wind force generated by the air outlet plate 21 can also make the material shake slightly, which helps prevent the material from clogging or piling up during the feeding process;

[0042] Subsequently, the exhaust fan 2 starts to work, extracts the heated hot air from the heating barrel 3, and sends this hot air into the drying box body 4. The drying box body 4 is tightly sleeved outside the dryer housing 1 to ensure that the hot air can fully contact the material inside the dryer housing 1, so as to achieve an efficient drying effect. Inside the dryer housing 1, the stirring assembly of the processing mechanism continuously stirs and mixes the material through its stirring base rod and stirring support rod to ensure that the material is evenly heated and avoid local overheating or uneven drying;

[0043] The stirring assembly drives a plurality of stirring support rods 31 to rotate through the stirring base rod 30, thereby crushing the filter cake material in the dryer housing 1. However, the size of the filter cake is not fixed. The thicker filter cake contains more liquid, and its thickness will affect the drying effect during the drying process. The trigger top block 32 and the tearing side plate 33 on the stirring support rod 31 break when encountering a larger filter cake during the stirring process. When the trigger top block 32 contacts the material block, the trigger top block 32 will penetrate into the interior of the larger filter cake. The fixed teeth 34 at the ends of the tearing side plates 33 on both sides thereof can temporarily fix the filter cake on its surface. At the same time, after the trigger top block 32 is impacted by the filter cake, it will move to one side and drive the tearing side plates 33 to move synchronously. During the movement of the trigger top block 32, the insertion grooves 35 on the side surfaces of the tearing side plates 33 gradually come into contact with the top position convex blocks 37, and as the top position convex blocks 37 are inserted into the insertion grooves 35, the tearing side plates 33 on both sides move to both sides respectively, and the filter cake stuck at the end of the trigger top block 32 is torn from between them. The larger the contacted filter cake is, the greater the impact force received by the trigger top block 32 is, and the deeper the depth of the top position convex blocks 37 inserted into the insertion grooves 35 is, the greater the moving amplitude of the tearing side plates 33 on both sides is, and the stronger the tearing force generated is. During the expansion process of the tearing side plates 33 on both sides, the elastic connecting plate 39 and the material removing wiping block 40 in the hidden groove 41 are designed to clean the residual materials on the trigger top block 32 and the tearing side plates 33 during the stirring process, preventing the accumulation of materials from affecting the stirring effect. When the tearing side plates 33 are in the closed state, the elastic connecting plate 39 is pushed by the top plate convex block 42 and remains in a bent state, and the material removing wiping block 40 does not reach the end of the tearing side plates 33 due to the bending of the elastic connecting plate 39. When the tearing side plates 33 expand, as the elastic connecting plate 39 gradually loses the pushing effect of the top plate convex block 42 and straightens due to elasticity, at this time, the material removing wiping block 40 slides inside the inner groove 43 of the slideway, reaches the end of the tearing side plates 33, and utilizes the elasticity when the elastic connecting plate 39 straightens to increase the sliding speed of the material removing wiping block 40, generating a certain impact force, so that when the material removing wiping block 40 reaches the end of the tearing side plates 33, it can remove the torn filter cake stuck at the end of the tearing side plates 33. Subsequently, the elastic block 36 resets, and the limiting spring connecting the limiting slider 38 and the trigger top block 32 also starts to contract, so that the tearing side plates 33 on both sides are retracted back to the side surface of the trigger top block 32 again, waiting for the next filter cake tearing operation;

[0044] The rotating drum assembly enables hot air to form a rotating airflow field inside the dryer housing 1, which helps the full contact and heat exchange between the hot air and the material, increases the contact area between the material particles, further improves the heat exchange efficiency, and also speeds up the drying speed;

[0045] The inner cylinder body 26 in the rotary drum assembly is located inside the heating chamber 24 and can rotate stably within the dryer housing 1 through the sliding ring 29 and the limiting slideway 27. After the drying operation has been carried out for a period of time, the rotary drum assembly will rotate once under the drive of the drive assembly to adjust the positions on both sides, thereby ensuring the uniformity of the drying of the materials inside the inner cylinder body 26. The multiple air flow rings 28 on the surface of the inner cylinder body 26 contribute to the uniform distribution of hot air inside the cylinder, improving the drying efficiency. The ventilation mesh plate 44 allows hot air to pass through and enter the inside of the inner cylinder body 26 to contact the materials, achieving the purpose of drying. The rotating shaft 11 can be raised under the control of the drive assembly and cooperate with the position adjustment groove 45 at the bottom of the inner cylinder body 26 through the annular hoop 46 and the elastic telescopic block 47, so that the stirring base rod 30 drives the inner cylinder body 26 to rotate together during the stirring process. Under the control of the drive assembly, the rotating shaft 11 drives the annular hoop 46 to rise, and the annular hoop 46 drives the engaging block 25 into the inside of the position adjustment groove 45. After the engaging block 25 rotates to a position corresponding to the stress groove, the elastic telescopic block 47 drives the engaging block 25 to extend and fit with the stress groove. Subsequently, when the rotating shaft 11 rotates, it can drive the inner cylinder body 26 to rotate synchronously. After rotating to a certain extent, the drive motor drives the rotating shaft 11 to descend again, and the inner cylinder body 26 stops rotating;

[0046] The drive assembly drives the main runner to rotate through the drive motor 15. The main runner is connected to the driven wheel 12 through the transmission belt 22, thereby driving the rotating shaft 11 and the stirring base rod 30 to rotate. The shaft sleeve allows the rotating shaft 11 to perform a small range of lifting and lowering adjustments during the driving process to drive the rotary drum assembly to rotate. The small motor 14 will regularly adjust the height of the sliding mounting plate reciprocally through the threaded rod and the lifting plate 13, thereby causing the rotary drum assembly to rotate once to ensure that the internal rotary drum assembly can maintain a uniform drying effect;

[0047] When the materials reach the predetermined drying degree, they will be discharged from the dryer housing 1 through the discharge port 8. At this time, the materials will enter the main classifier 6 for preliminary classification. The main classifier 6 classifies the materials into different grades according to their particle size and density. The classified materials will be sent into the cyclone separator body 9 through the transmission pipe 7 for further separation and purification. The cyclone separator body 9 uses centrifugal force to separate the fine particles and dust in the materials and send them into the auxiliary fan 17 through the air outlet pipe 10. The auxiliary fan 17 generates a strong suction force to discharge these fine particles and dust out of the equipment through the exhaust pipe 16 to ensure the purity and quality of the final product.

[0048] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A drying equipment for zinc sulfide production, characterized in that: include: A dryer housing (1), wherein a processing mechanism is arranged inside the dryer housing (1), and the processing mechanism comprises a stirring assembly and a rotating drum assembly; The stirring assembly comprises: a stirring base rod (30), a plurality of stirring support rods (31) are arranged on the side surface of the stirring base rod (30), a movable trigger top block (32) is arranged on one side surface of the stirring support rod (31), an elastic block (36) is arranged on the side surface of the trigger top block (32) close to the stirring support rod (31), two sides of the elastic block (36) are respectively connected to the stirring support rod (31) and one side surface of the trigger top block (32), movable tear side plates (33) are arranged on the upper and lower sides of the trigger top block (32), an insertion groove (35) is further provided between the tear side plate (33) and the trigger top block (32), and a top position protrusion (37) matching the insertion groove (35) is arranged on the side surface of the stirring support rod (31) close to the tear side plate (33); The rotary drum assembly comprises: an inner drum (26), the inner drum (26) being located inside the heating chamber (24), a plurality of air flow rings (28) being arranged on the surface of the inner drum (26), a sliding ring (29) being arranged at the top of the inner drum (26), a limiting slideway (27) cooperating with the sliding ring (29) being arranged on the inner side wall of the dryer housing (1), and a ventilation mesh plate (44) being arranged on the bottom surface of the inner drum (26); A fixed tooth (34) is provided on one end surface of the trigger top block (32), and a hidden groove (41) is provided on both upper and lower surfaces of the trigger top block (32). An elastic connecting plate (39) is provided on the surface of the hidden groove (41), and a material removal wiper block (40) is provided on one end of the elastic connecting plate (39) away from the hidden groove (41). A top plate protrusion (42) cooperating with the elastic connecting plate (39) is provided inside the hidden groove (41). A slideway inner groove (43) is provided on a side surface of the tearing side plate (33) close to the hidden groove (41) to facilitate the sliding of the material removal wiper block (40), and limiting convex piles are provided on both sides of the material removal wiper block (40), and limiting slideways cooperating with the limiting convex piles are provided on both sides of the inner surface of the slideway inner groove (43).

2. A drying equipment for zinc sulfide production according to claim 1, characterized in that: A limiting slider (38) is also provided on a surface of one side of the tearing side plate (33) adjacent to the triggering top block (32) to facilitate improving the stability of the tearing side plate (33) when sliding and to prevent the tearing side plate (33) and the triggering top block (32) from completely separating. A limiting spring is also provided between one end of the limiting slider (38) and the triggering top block (32).

3. A drying equipment for zinc sulfide production according to claim 1, characterized in that: The bottom surface of the inner cylinder (26) is also provided with a positioning groove (45), and force grooves are also provided on both sides of the positioning groove (45). A rotatable rotating shaft (11) is also provided at the center of the positioning groove (45), and the upper surface of the rotating shaft (11) is fixedly connected to the bottom surface of the stirring base rod (30). The surface of the rotating shaft (11) is also sleeved with an annular hoop (46) that matches the positioning groove (45), and elastic telescopic blocks (47) are also provided on both side surfaces of the annular hoop (46), and the ends of the elastic telescopic blocks (47) are provided with engaging blocks (25) that match the force groove.

4. A drying equipment for zinc sulfide production according to claim 1, characterized in that: The processing mechanism further comprises a driving assembly, the driving assembly comprising: a driven wheel (12), the top surface of the driven wheel (12) being fixedly connected to the bottom surface of the rotating shaft (11), the rotating shaft (11) being further provided with an axle sleeve on the outside, the axle sleeve being capable of driving the rotating shaft (11) to perform a small range of lifting and lowering, a driving motor (15) being provided on one side surface of the driven wheel (12), a sliding mounting plate being provided on one side surface of the driving motor (15), the sliding mounting plate being connected to the bottom surface of the dryer housing (1) The bottom support frame (5) is slidably connected, a main rotating wheel is arranged at the end of the output shaft of the driving motor (15), a transmission belt (22) is connected between the main rotating wheel and the driven wheel (12), a small motor (14) is arranged on the bottom surface of the bottom support frame (5), a threaded rod is arranged on the output end of the small motor (14), a lifting plate (13) is fixedly installed between the shaft sleeve at the bottom of the bottom support frame (5) and the sliding mounting plate, and a threaded hole matching the threaded rod is opened at the center of the lifting plate (13).

5. A drying equipment for zinc sulfide production according to claim 1, characterized in that: The processing mechanism further comprises: a feeding assembly, the feeding assembly comprising: a feeding pipe (19), a locking block (25) matching the feeding pipe (19) is provided inside the dryer housing (1), a feeding port (20) is provided on the surface of the feeding pipe (19), an air outlet plate (21) is provided at the center of the feeding port (20), the air outlet plate (21) is a hollow structure and an air outlet is provided on the bottom surface, and an air duct (23) is connected between the upper surface of the air outlet plate (21) and the drying box (4).

6. A drying equipment for zinc sulfide production according to claim 1, characterized in that: A bottom support frame (5) is provided on the bottom surface of the dryer housing (1); an exhaust fan (2) is provided on one side surface of the dryer housing (1); an air outlet is provided at one end of the exhaust fan (2); a heating barrel (3) is provided on one side of the air outlet; a drying box (4) is provided on the side surface of the heating barrel (3) facing away from the exhaust fan (2); the drying box (4) is sleeved on the surface of the dryer housing (1); a main classifier (6) is also provided on one side of the dryer housing (1); a side surface of the dryer housing (1) close to the main classifier (6) is provided. A discharge port (8) is provided, a cyclone separator body (9) is provided on one side surface of the discharge port (8), a fixed base frame (18) is provided on the bottom surface of the cyclone separator body (9), an auxiliary fan (17) is provided on one side of the fixed base frame (18), and an exhaust pipe (16) is provided above the auxiliary fan (17), wherein the cyclone separator body (9), the main classifier (6) and the discharge port (8) are connected via a transmission pipe (7), and the auxiliary fan (17) and the cyclone separator body (9) are connected via an exhaust pipe (10).

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