A molybdenum scrap recovery drying device

Abstract

The utility model relates to molybdenum scrap recycling technical field provides a kind of molybdenum scrap recycling drying equipment, including box, the inside fixed frame plate of box is installed, a sealed cavity is formed between fixed frame plate and box, rotating installation is carried out on fixed frame plate with the filter hole drum;The left end of drum is provided with cover plate, first drive unit is arranged between fixed frame plate and drum, the inside of drum is provided with drying and washing unit;Drying and washing unit includes support plate, the upper and lower sides of support plate are respectively provided with several spray heads and several heating pieces;The cooperation setting between the drum of the utility model and drying and washing unit makes material constantly turn over, simultaneously, realizes that spray head and heating piece on support plate in drying and washing unit are replaced, and then molybdenum scrap is dried after molybdenum scrap is cleaned first, realizes that molybdenum scrap is not transferred between different equipment, it can be pretreated to the recovery of molybdenum scrap, greatly simplifies the processing flow of molybdenum scrap recovery.

Description

Technical Field

[0001] This utility model relates to the field of molybdenum scrap recycling technology, and in particular to a molybdenum scrap recycling drying equipment. Background Technology

[0002] Molybdenum, an important rare metal, is widely used in industrial production, and the resulting molybdenum shavings have high recycling value. Molybdenum castings produced during machining generate small, scattered shavings with a large amount of oil and cutting fluid on their surface. Before use, these shavings must be remelted and refined in a furnace, and their composition adjusted to meet standards before being cast into ingots for use as scrap. However, due to the presence of oil and cutting fluid on the shavings, the remelting process generates a large amount of fumes that pollute the environment and affect the quality of the smelting process.

[0003] A patent application (CN118322636A) for a metal scrap recycling and reprocessing device includes a device body and a base plate disposed below it, with two pairs of fixing plates fixedly installed on the surface of the base plate. In this metal scrap recycling and reprocessing device, a high-speed rotating filter drum uses centrifugal force to remove the processing fluid from the drum. However, for molybdenum scrap, the oil and cutting fluid present on the scrap are inevitably sticky and difficult to remove by the rotating drum, further affecting the smelting quality of the molybdenum scrap. Utility Model Content

[0004] The purpose of this invention is to provide a molybdenum scrap recycling and drying equipment, which can simultaneously clean and dry molybdenum scrap through a drying and washing unit, thereby reducing impurities in the molybdenum scrap after smelting.

[0005] The present invention adopts the following technical solution: a molybdenum scrap recycling drying equipment, including a box body, a fixed frame plate installed inside the box body, a sealed cavity formed between the fixed frame plate and the box body, a roller with filter holes rotatably installed on the fixed frame plate, both ends of the roller penetrating the fixed frame plate and extending outward from the fixed frame plate, and the filter holes are located inside the fixed frame plate;

[0006] A cover plate is provided at the left end of the drum, a first drive unit for driving the drum to rotate is provided between the fixed frame plate and the drum, and a drying unit for cleaning and drying the material inside the drum is provided inside the drum.

[0007] The drying and washing unit includes a support plate, which is located in the middle of the drum and arranged along the drum axis. Several nozzles and several heating elements are respectively arranged on the upper and lower sides of the support plate. The support plate can be rotated up and down in the drum to realize the cleaning and drying of the materials inside the drum.

[0008] Preferably, the roller is cylindrical and arranged along the length of the box body. The inner diameter of the roller decreases from left to right. The right end of the roller is provided with a conical cover. The conical cover has a feed inlet. A feed pipe fixed to the box body is provided at the feed inlet.

[0009] Preferably, an arc-shaped plate is fixed to the inner wall of the fixed frame plate below the roller, and a drain pipe is vertically connected below the arc-shaped plate. The drain pipe passes through the fixed frame plate and extends to the outside of the fixed frame plate. Two collection boxes are provided at the bottom of the inside of the box, and the two collection boxes correspond to the drain pipe and the discharge port of the roller, respectively.

[0010] Preferably, two mounting brackets are installed on the upper part of the inner side of the housing, with the two mounting brackets located at both ends of the drum, and the drying and washing unit located between the two mounting brackets. The drying and washing unit also includes a hollow tube and a support rod respectively connected to both ends of the support plate.

[0011] Preferably, the hollow tube and the support rod are respectively mounted on two mounting brackets via bearings, the hollow tube is connected to the nozzle, and the hollow tube and the support rod are respectively coaxially arranged with the roller.

[0012] The two preferred mounting brackets are divided into a first bracket plate and a second bracket plate. The hollow tube and the support rod are respectively connected to the first bracket plate and the second bracket plate. A second drive unit for driving the support plate to rotate is provided between the hollow tube and the first bracket plate.

[0013] Preferably, a water tank is provided above the box body, and a water supply pipe is provided on the water tank. One end of the water supply pipe passes through the box body and is connected to the end of the hollow tube away from the support plate. The hollow tube and the water supply pipe are rotatably connected.

[0014] Preferably, the spray plate and heating plate are embedded in the inner wall of the protective cover, the spray nozzle is flush with the inner wall of the protective cover, and the two ends of the baffle are in contact with the inner wall of the protective cover to form a closed spraying and drying space.

[0015] Preferably, a transmission unit is provided between the cover plate and the fixed frame plate, and the cover plate slides along the length of the roller through the transmission unit to open or close the roller outlet.

[0016] Preferably, the transmission unit includes a lead screw located within a fixed frame plate, the right end of the lead screw being coaxially arranged with a first drive gear, an electromagnetic clutch installed within the fixed frame plate being provided between the lead screw and the first drive gear, the lead screw being threadedly engaged with a cover plate, and the cover plate sliding on a hollow tube.

[0017] Preferably, the cover plate is circular and coaxially arranged with the drum. The cover plate includes a large circular plate and a small circular plate, which are coaxially arranged. The small circular plate is located at the discharge end of the drum and is adapted to the inner diameter of the drum. The large circular plate is larger than the diameter of the drum, and the large circular plate is threadedly engaged with the lead screw.

[0018] The beneficial effects of this utility model are:

[0019] 1. The coordinated design between the drum and the drying unit allows the material to be continuously turned over while the nozzles and heating elements on the support plate in the drying unit are replaced. This first cleans the oil stains on the molybdenum shavings before drying them, enabling pre-treatment of molybdenum shavings recycling without transferring them between different devices, greatly simplifying the molybdenum shavings recycling process.

[0020] 2. The cover plate ensures a good seal at the drum outlet during washing and drying, preventing material and liquid leakage. The cover plate, through a transmission unit composed of a screw and an electromagnetic clutch, can be easily controlled to slide left and right, enabling rapid opening and closing of the drum outlet. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the drying equipment of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the roller of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the cover plate of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the baffle of this utility model;

[0026] Figure 6 This is a schematic diagram of the drying and washing unit of this utility model;

[0027] Figure 7 This is a cross-sectional structural diagram of the support plate of this utility model.

[0028] In the picture:

[0029] 1. Housing; 2. Drum; 3. Cover plate; 4. Fixing frame plate; 5. Drying and washing unit; 6. First drive unit; 7. Electromagnetic clutch; 8. Lead screw; 9. Second drive unit; 10. Collection box; 11. Water tank; 12. Water supply pipe; 13. Feed pipe; 14. Mounting frame; 15. Controller; 141. First frame plate; 142. Second frame plate; 21. First transmission gear; 22. Baffle; 41. Arc plate; 42. Drain pipe; 51. Support plate; 52. Nozzle; 53. Heating element; 54. Hollow tube; 55. Support rod; 541. Diverter pipe; 61. First drive gear; 91. Driver; 92. Second drive gear; 93. Second transmission gear. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0031] like Figures 1 to 7 As shown, this utility model provides a molybdenum scrap recycling drying equipment, including a box body 1. A fixed frame plate 4 is installed inside the box body 1. The fixed frame plate 4 is U-shaped, with its opening facing upwards. The two openings of the fixed frame plate 4 contact the inner wall of the box body 1, forming a sealed cavity to prevent heat loss during the drying of materials in the drum 2. A drum 2 is rotatably mounted on the fixed frame plate 4, with both ends of the drum 2 penetrating the fixed frame plate 4 and extending outwards. The drum 2 has filter holes circumferentially opened on it, located inside the fixed frame plate 4. A cover is provided at the left end of the drum 2. A first drive unit 6 for driving the rotation of the drum 2 is provided between the plate 3, the fixed frame plate 4 and the drum 2. The drum 2 is provided with a drying unit 5 for cleaning and drying the material inside the drum 2. In detail, the drum 2 is cylindrical and is arranged along the length of the box 1. The inner diameter of the drum 2 decreases from left to right. Under the combined action of gravity and centrifugal force, the processed molybdenum shavings gradually move to the left end of the drum 2 so as to be quickly discharged from the discharge port of the drum 2. The right end of the drum 2 is provided with a cone cover, and a feed port is opened on the cone cover. A feed pipe 13 fixed on the box 1 is provided at the feed port.

[0032] In the above scheme, the molybdenum shavings to be processed are conveyed from the feed pipe 13 into the drum 2. Then, the drum 2 is rotated by the first drive unit 6, and the molybdenum shavings are continuously turned from bottom to top inside the drum 2. At the same time, under the drying and washing unit 5, the molybdenum shavings are first sprayed with cleaning liquid to separate the molybdenum shavings from oil and impurities. Then, the molybdenum shavings are dried by the drying and washing unit 5 to ensure the quality of the molybdenum shavings after melting and to avoid the problem of excessive fumes affecting the environment and the quality of molybdenum shavings caused by oil on the molybdenum shavings during the smelting process.

[0033] In other embodiments, the housing 1 can be a support frame formed by combining multiple support frames to reduce material usage instead of housing 1. The fixed frame plate 4 can be a rectangular body formed by six plates. The fixed frame plate 4 is fixed on the support frame, so that the fixed frame plate 4 also has a sealed cavity.

[0034] like Figures 2 to 5 As shown, in order to facilitate the collection of impurities filtered out by the material in the drum 2, in this embodiment, an arc-shaped plate 41 fixed to the inner wall of the fixed frame plate 4 is provided below the drum 2. The arc-shaped design of the arc-shaped plate 41 can guide the impurity liquid to converge in the middle. A drain pipe 42 is vertically connected below the arc-shaped plate 41. The drain pipe 42 passes through the fixed frame plate 4 and extends to the outside of the fixed frame plate 4. Two collection boxes 10 are provided at the bottom of the inside of the box 1. The two collection boxes 10 correspond to the drain pipe 42 and the discharge port end of the drum 2, respectively.

[0035] In the above scheme, after the molybdenum shavings are cleaned, the liquid inside the drum 2 flows into the arc plate 41 through the filter hole on the drum 2, and the liquid in the arc plate 41 enters the collection box 10 through the drain pipe 42, thereby collecting the liquid.

[0036] like Figure 2 and Figure 4 As shown, the first drive unit 6 includes a first drive gear 61 and a first transmission gear 21. The first transmission gear 21 is disposed on the outer periphery of one end of the roller 2. The first drive gear 61 is located on the inner side of the fixed frame plate 4 and meshes with the first transmission gear 21. A motor is installed on the outer side of the fixed frame plate 4. The drive shaft of the motor passes through the fixed frame plate 4 and is connected to the first drive gear 61.

[0037] like Figure 2 and Figure 6 As shown, in order to limit the position of the drying unit 5, in this embodiment, two mounting brackets 14 are installed on the upper part of the inside of the housing 1. The two mounting brackets 14 are located at both ends of the drum 2, and the drying unit 5 is located between the two mounting brackets 14. The drying unit 5 includes a support plate 51 located inside the drum 2. Several nozzles 52 and several heating elements 53 are respectively arranged on the upper and lower sides of the support plate 51. Hollow tubes 54 and support rods 55 are respectively connected to both ends of the support plate 51. The hollow tubes 54 and support rods 55 are respectively mounted on the two mounting brackets 14 through bearings. The hollow tubes 54 are connected to the nozzles 52. The hollow tubes 54 and support rods 55 are respectively coaxially arranged with the drum 2. A water tank 11 is provided on the upper part of the housing 1. A water supply pipe 12 is provided on the water tank 11. One end of the water supply pipe 12 passes through the housing 1 and is connected to the end of the hollow tube 54 away from the support plate 51. The hollow tube 54 and the water supply pipe 12 are rotatably arranged to prevent the water supply pipe 12 from rotating with the hollow tube 54.

[0038] The two mounting brackets 14 are divided into a first bracket plate 141 and a second bracket plate 142. The hollow tube 54 and the support rod 55 are respectively connected to the first bracket plate 141 and the second bracket plate 142. A second drive unit 9 for driving the support plate 51 to rotate is provided between the hollow tube 54 and the first bracket plate 141. The second drive unit 9 includes a driver 91, a second drive gear 92 and a second transmission gear 93. The driver 91 is a motor and is fixed to the outside of the first bracket plate 141. The second drive gear 92 is located on the inside of the first bracket plate 141 and is connected to the output shaft of the driver 91. The second transmission gear 93 is installed on the hollow tube 54 and meshes with the second drive gear 92. A baffle 22 is provided at the feed port of the cone cover. The baffle 22 can block the feed port of the cone cover to reduce the heat loss inside the drum 2. The baffle 22 is rotatably engaged with the cone cover. The baffle 22 is fixed on the support rod 55. The outlet end of the feed pipe 13 passes through the baffle 22 and extends into the drum 2.

[0039] like Figures 3 to 7 As shown, a diversion pipe 541 is provided inside the support plate 51, and several nozzles 52 are connected to the diversion pipe 541 at equal intervals. In this embodiment, the diversion pipe 541 is divided into two groups, and there are two diversion pipes 541. The diversion pipe 541 is U-shaped and connected to the hollow pipe 54. The support rod 55 is electrically connected to the heating element 53 through a control circuit. The housing 1 is equipped with a controller 15. A wire is provided between the controller 15 and the second frame plate 142. The wire is electrically connected to the control circuit. One end of the control circuit on the support rod 55 and the opposite end of the wire on the second frame plate 142 are provided with contact points, so that when the heating element 53 is facing downward, the control circuit on the support rod 55 and the wire on the second frame plate 142 are energized and connected, so that the heating element 53 works.

[0040] In the above scheme, in the initial state, the nozzle 52 is located below the support plate 51. The cleaning liquid in the water tank 11 is transported to the hollow tube 54 through the water supply pipe 12, and then enters the diversion pipe 541 inside the support plate 51 through the hollow tube 54 and is sprayed out from the nozzle 52 to thoroughly clean the material inside the drum 2. After cleaning the molybdenum shavings inside the drum 2, the nozzle 52 stops spraying liquid, and the support plate 51 is rotated by the second drive unit 9, so that the heating element 53 is located below the support plate 51. The contact point of the control circuit on the support rod 55 is in contact with the contact point of the wire on the second frame plate 142. The heating element 53 is energized to generate heat, thereby drying the material inside the drum 2, realizing the effect of integrated cleaning and drying of molybdenum shavings.

[0041] like Figures 2 to 6As shown, a transmission unit is provided between the cover plate 3 and the fixed frame plate 4. The cover plate 3 slides along the length of the roller 2 through the transmission unit to open or close the discharge port of the roller 2. The transmission unit includes a lead screw 8 located inside the fixed frame plate 4. The right end of the lead screw 8 is coaxially arranged with the first drive gear 61. An electromagnetic clutch 7 installed inside the fixed frame plate 4 is provided between the lead screw 8 and the first drive gear 61. When the electromagnetic clutch 7 is working, it can make the lead screw 8 and the shaft of the first drive gear 61 rotate synchronously. The electromagnetic clutch 7 is prior art and will not be described in detail here. The left end of the lead screw 8 passes through... The screw 8 extends beyond the fixed frame plate 4. The length of the screw 8 is greater than the length of the drum 2. The screw 8 is threadedly engaged with the cover plate 3. The cover plate 3 slides on the hollow tube 54 and has a guiding function. The cover plate 3 is circular and coaxially arranged with the drum 2. The cover plate 3 includes a large circular plate and a small circular plate. The large circular plate and the small circular plate are coaxially arranged. The small circular plate is located at the discharge end of the drum 2 and is adapted to the inner diameter of the drum 2. The large circular plate is larger than the diameter of the drum 2. The large circular plate is threadedly engaged with the screw 8. The small circular plate is used to ensure the sealing between the cover plate 3 and the discharge end of the drum 2. The large circular plate is used to connect with the screw 8.

[0042] In the above scheme, when the outlet end of the roller 2 is closed, the shaft on the first transmission gear 21 rotates, and the electromagnetic clutch 7 is activated, so that the shaft on the first transmission gear 21 and the lead screw 8 rotate synchronously, thereby blocking the outlet end of the roller 2 with the cover plate 3. After the outlet end of the roller 2 is blocked, the electromagnetic clutch 7 stops working, releasing the synchronous rotation between the shaft on the first transmission gear 21 and the lead screw 8. When the outlet end of the roller 2 needs to be opened, the cover plate 3 is separated from the outlet end of the roller 2 through the above operation. During the process of the cover plate 3 being driven to move by the lead screw 8, the hollow tube 54 acts as a guide rod to limit the position of the cover plate 3, ensuring that the lead screw 8 drives the cover plate 3 to move left and right.

[0043] Working principle:

[0044] In the initial state, the feed pipe 13 is precisely connected to the feed port on the right end cone cover of the drum 2 to ensure that the material can enter the drum 2 smoothly without spilling. When processing molybdenum shavings, the molybdenum shavings to be processed are first transported into the drum 2 through the feed pipe 13.

[0045] When the first drive unit 6 is started, the motor on the outside of the fixed frame plate 4 starts to work, and its drive shaft drives the first drive gear 61 to rotate. Since the first drive gear 61 meshes with the first transmission gear 21 on the drum 2, the drum 2 is driven to rotate on the fixed frame plate 4. The rotation of the drum 2 causes the molybdenum shavings inside to be continuously turned over, avoiding the accumulation of materials and providing uniform processing conditions for subsequent cleaning and drying operations.

[0046] At this time, the nozzle 52 is located below the support plate 51. The cleaning liquid in the water tank 11 is transported to the hollow tube 54 through the water pipe 12, and then enters the diversion pipe 541 inside the support plate 51 through the hollow tube 54. Finally, it is sprayed out by the nozzle 52 on the diversion pipe 541 to thoroughly clean the material in the roller 2 and fully wash away the oil and impurities on the surface of the molybdenum shavings.

[0047] The impurity liquid generated during cleaning is discharged through the filter holes on the drum 2, falls onto the arc plate 41 on the inner wall of the fixed frame plate 4, and then is discharged from the fixed frame plate 4 through the drain pipe 42 below the arc plate 41, and finally flows into the corresponding collection box 10, realizing the centralized collection and treatment of impurity liquid.

[0048] After cleaning, the water supply from water tank 11 to water pipe 12 is turned off, and nozzle 52 stops spraying water. The second drive unit 9 is started, and the driver 91 drives the second drive gear 92 to rotate. The second drive gear 92 meshes with the second transmission gear 93 on the hollow tube 54, thereby driving the hollow tube 54 to rotate. The hollow tube 54 drives the support plate 51 and support rod 55 to rotate synchronously, so that the heating element 53 is in the position of the support plate 51 facing downward. The contact point of the control circuit on the support rod 55 contacts the contact point of the wire on the second frame plate 142, so that the heating element 53 is energized and starts to work, releasing heat to dry the material in the drum 2. Since the fixed frame plate 4 forms a sealed cavity in contact with the inner wall of the box 1, the heat loss to the outside is reduced, so that the inside of the drum 2 can heat up quickly, improve the drying efficiency, and reduce energy consumption. During the drying process, the drum 2 continues to rotate to ensure that the material is heated evenly and avoid local overheating that could damage the material.

[0049] After drying is completed, the heating element 53 and the second drive unit 9 are turned off, and the support plate 51 continues to rotate, so that the nozzle 52 is once again located below the support plate 51 for the next operation. Then, the electromagnetic clutch 7 is controlled to work, so that the lead screw 8 and the first drive gear 61 are connected. At this time, the rotation of the first drive gear 61 drives the lead screw 8 to rotate synchronously. Due to the threaded fit between the lead screw 8 and the cover plate 3, and the guide action of the cover plate 3 under the hollow tube 54, the rotation of the lead screw 8 is converted into the sliding of the cover plate 3 to the left along the hollow tube 54, thereby opening the left end of the discharge port of the roller 2.

[0050] At this time, the drum 2 is still rotating under the drive of the first drive unit 6. As the inner diameter of the drum 2 decreases from left to right, under the combined action of gravity and centrifugal force, the processed molybdenum shavings gradually move to the left end of the drum 2 and are discharged from the open discharge port, falling into the corresponding collection box 10, thus completing the entire molybdenum shavings recycling process.

[0051] Finally, the cover plate 3 is controlled by the transmission unit to slide along the length of the hollow tube 54, so that the cover plate 3 is embedded in the left end of the discharge port of the roller 2 to seal the discharge port of the roller 2 and prevent material or liquid leakage during subsequent processing.

[0052] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A molybdenum scrap recycling and drying equipment, comprising a housing, characterized in that, A fixed frame plate is installed inside the box, forming a sealed cavity between the fixed frame plate and the box. A roller with filter holes is rotatably mounted on the fixed frame plate. Both ends of the roller penetrate the fixed frame plate and extend outward from the fixed frame plate. The filter holes are located inside the fixed frame plate. A cover plate is provided at the left end of the drum, a first drive unit for driving the drum to rotate is provided between the fixed frame plate and the drum, and a drying unit for cleaning and drying the material inside the drum is provided inside the drum. The drying and washing unit includes a support plate, which is located in the middle of the drum and arranged along the drum axis. Several nozzles and several heating elements are respectively arranged on the upper and lower sides of the support plate. The support plate can be rotated up and down in the drum to realize the cleaning and drying of the materials inside the drum.

2. The molybdenum scrap recycling and drying equipment according to claim 1, characterized in that: The roller is cylindrical and is arranged along the length of the box. The inner diameter of the roller decreases from left to right. The right end of the roller is provided with a conical cover, and a feed inlet is opened on the conical cover. A feed pipe fixed to the box is provided at the feed inlet.

3. The molybdenum scrap recycling and drying equipment according to claim 2, characterized in that: Below the roller is an arc-shaped plate fixed to the inner wall of the fixed frame plate. A drain pipe is vertically connected below the arc-shaped plate. The drain pipe passes through the fixed frame plate and extends to the outside of the fixed frame plate. Inside the lower part of the box body are two collection boxes, which correspond to the drain pipe and the discharge port of the roller, respectively.

4. The molybdenum scrap recycling and drying equipment according to claim 3, characterized in that: Two mounting brackets are installed on the upper part of the inside of the box. The two mounting brackets are located at the two ends of the drum, and the drying and washing unit is located between the two mounting brackets. The drying and washing unit also includes hollow tubes and support rods connected to the two ends of the support plate.

5. The molybdenum scrap recycling and drying equipment according to claim 4, characterized in that: The hollow tube and the support rod are respectively mounted on two mounting brackets via bearings. The hollow tube is connected to the nozzle, and the hollow tube and the support rod are respectively coaxially arranged with the roller.

6. The molybdenum scrap recycling and drying equipment according to claim 5, characterized in that: The two mounting brackets are divided into a first bracket plate and a second bracket plate. The hollow tube and the support rod are respectively connected to the first bracket plate and the second bracket plate. A second drive unit for driving the support plate to rotate is provided between the hollow tube and the first bracket plate.

7. The molybdenum scrap recycling and drying equipment according to claim 6, characterized in that: A water tank is located above the box body, and a water supply pipe is provided on the water tank. One end of the water supply pipe passes through the box body and is connected to the end of the hollow tube away from the support plate. The hollow tube and the water supply pipe are rotatably connected.

8. The molybdenum scrap recycling and drying equipment according to claim 1, characterized in that: A transmission unit is provided between the cover plate and the fixed frame plate. The cover plate slides along the length of the roller through the transmission unit to open or close the roller outlet.

9. The molybdenum scrap recycling and drying equipment according to claim 8, characterized in that: The transmission unit includes a lead screw located inside a fixed frame plate. The right end of the lead screw is coaxially arranged with a first drive gear. An electromagnetic clutch installed inside the fixed frame plate is provided between the lead screw and the first drive gear. The lead screw is threadedly engaged with a cover plate, and the cover plate slides on a hollow tube.

10. The molybdenum scrap recycling and drying equipment according to claim 9, characterized in that: The cover plate is circular and coaxially arranged with the drum. The cover plate includes a large circular plate and a small circular plate, which are coaxially arranged. The small circular plate is located at the discharge end of the drum and is adapted to the inner diameter of the drum. The large circular plate is larger than the diameter of the drum, and the large circular plate is threadedly engaged with the lead screw.

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