Zinc sulfide powder drying equipment

Abstract

This invention provides a zinc sulfide powder drying device. A support frame is mounted on the ground, and a slide rail is provided on the support frame. A drying chamber is slidably mounted on the slide rail, and the powder material to be dried is placed inside the drying chamber. A drying pipe is located at the bottom of the drying chamber, and the drying pipe is used to introduce hot air into the drying chamber. A drive mechanism is located on one side of the drying chamber and is connected to the drying chamber. The drive mechanism can drive the drying chamber to slide forward. A reset mechanism is located between the drying chamber and the support frame. When the drying chamber slides forward, the reset mechanism stores energy; when the air pressure inside the drying chamber decreases, the reset mechanism releases energy to drive the drying chamber to slide in the reverse direction. This invention, by setting up a support frame, drive mechanism, and reset mechanism in coordination, ensures that the hot air introduced into the drying chamber not only dries the zinc sulfide powder material inside the drying chamber, but also causes the drying chamber to sway back and forth along the slide rail, keeping the zinc sulfide powder material in a constantly moving state, thereby preventing agglomeration during the drying process.

Description

Technical Field

[0001] This invention belongs to the field of drying equipment technology, and more specifically, relates to a zinc sulfide powder drying device. Background Technology

[0002] Zinc sulfide is commonly used as an analytical reagent, phosphor, and photoconductor material. It is also used in the manufacture of dyes, coatings, pigments, glass, and curing oils, as well as in various filters and laser window coatings.

[0003] In existing technologies, zinc sulfide is generally produced by using existing purified zinc sulfate solution, adding sodium sulfide to synthesize zinc sulfide, and then rinsing, drying, and calcining to produce zinc sulfide products that meet the standards.

[0004] However, zinc sulfide cannot be dried at too high a temperature, otherwise it will oxidize into zinc sulfate. Therefore, the drying temperature of zinc sulfide is generally between 80 and 120 degrees Celsius, and the drying time is between 8 and 10 hours.

[0005] Because the initial zinc sulfide raw material has a high moisture content and the drying time is long, the dried zinc sulfide often clumps together and needs to be crushed, which is inconvenient to use. Summary of the Invention

[0006] The purpose of this invention is to provide a zinc sulfide powder drying device to prevent the powder material from clumping during the drying process.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a zinc sulfide powder drying device, including a support frame disposed on the ground, wherein the support frame is provided with a slide rail;

[0008] A drying chamber is slidably mounted on the slide rail. The powder material to be dried is placed inside the drying chamber. A drying pipe is provided at the bottom of the drying chamber, and the drying pipe is used to introduce hot air into the drying chamber.

[0009] A drive mechanism is located on one side of the drying chamber and is connected to the drying chamber. When the air pressure inside the drying chamber increases, the drive mechanism can drive the drying chamber to slide forward.

[0010] A reset mechanism is provided between the drying chamber and the support frame. When the drying chamber slides forward, the reset mechanism stores energy; when the air pressure inside the drying chamber decreases, the reset mechanism releases energy to drive the drying chamber to slide in the reverse direction.

[0011] In one possible implementation, the drive mechanism includes:

[0012] A drive cylinder is located on one side of the drying oven and is fixedly mounted on the support frame. The axial direction of the drive cylinder is parallel to the sliding direction of the drying oven.

[0013] A connecting pipe, one end of which is connected to the drive cylinder, and the other end of which is connected to the drying box;

[0014] A driving plug is disposed inside the driving cylinder, and the drying box is connected to the driving plug. The driving plug is provided with a plurality of first pressure reducing holes.

[0015] A sealing component is connected to the driving plug, and the sealing component is capable of sealing the first pressure-reducing hole or releasing the sealing of the first pressure-reducing hole.

[0016] In one possible implementation, the blocking component includes:

[0017] The connecting rod is L-shaped, with one end connected to the drying oven and the other end connected to the drive plug;

[0018] A sealing plug is rotatably mounted on the driving plug. The sealing plug is annular, and the connecting rod is inserted into the inner hole of the sealing plug. The sealing plug is provided with multiple second pressure-reducing holes, with the first pressure-reducing hole corresponding to the second pressure-reducing hole one-to-one. The sealing plug can make the corresponding first pressure-reducing hole and second pressure-reducing hole connect due to rotation; and the sealing plug can also disconnect the first pressure-reducing hole and the second pressure-reducing hole due to rotation.

[0019] A drive unit is provided on the connecting rod, and the drive unit is connected to the sealing plug. The drive unit is used to drive the sealing plug to rotate.

[0020] In one possible implementation, the drive plug is provided with a pivot hole, the pivot hole including a first large diameter section and a first small diameter section;

[0021] The sealing plug is provided with a connecting tube. The inner diameter of the clamping tube is the same as the diameter of the connecting rod. The top end of the clamping tube is provided with a retaining ring. The outer diameter of the retaining ring is the same as the diameter of the first large diameter section. The outer diameter of the clamping tube is the same as the diameter of the first small diameter section. The retaining ring is inserted into the first large diameter section, and the clamping tube is inserted into the first small diameter section.

[0022] In one possible implementation, the driving unit includes:

[0023] A first drive tube is sleeved on the connecting rod, one end of the first drive tube is connected to the sealing plug, and a guide block is provided at the top of the first drive tube;

[0024] The second drive tube is sleeved on the connecting rod. The inner hole of the second drive tube includes a second large diameter section and a second small diameter section. The diameter of the second small diameter section is the same as the diameter of the connecting rod, and the diameter of the second large diameter section is the same as the outer diameter of the first drive tube. A guide groove is provided on the inner wall of the second large diameter section. The guide block is inserted into the guide groove, and a portion of the first drive tube is inserted into the second large diameter section. A driven ring is provided on the second drive tube.

[0025] An electric motor is mounted on the connecting rod, and the power output end of the electric motor is provided with a driving gear, which meshes with the driven ring.

[0026] In one possible implementation, the drying tube is arranged in a zigzag pattern at the bottom of the drying chamber, and a plurality of drying holes are evenly provided on the drying tube. The drying holes are located at the bottom of the drying tube, and a first filter element is provided at the bottom of the drying tube, which covers the drying holes.

[0027] The drying chamber is equipped with a second filter element, which covers the connection between the connecting pipe and the drying chamber.

[0028] In one possible implementation, the reset mechanism comprises either a spring or an air spring.

[0029] In one possible implementation, the drying oven includes a box body, a bottom plate and a top plate. The top and bottom of the box body are both open. The top end face and the bottom end face of the box body are both provided with slots, and a first threaded hole is provided through the slots.

[0030] The base plate is provided with a first insert ring, and the first insert ring is provided with a second threaded hole. The first insert ring is inserted into a slot on the bottom end face of the drying oven, and bolts are screwed into the corresponding first threaded hole and second threaded hole to fix the base plate to the bottom of the drying oven.

[0031] The top plate is provided with a second insert ring, and the second insert ring is provided with a third threaded hole. The second insert ring is inserted into the slot on the top end face of the drying box, and the bolt is screwed into the corresponding first threaded hole and third threaded hole to fix the top plate to the top of the drying box.

[0032] In one possible implementation, the support frame includes:

[0033] A support cylinder, wherein the slide rail is disposed on the inner wall of the support cylinder, and the drying box is disposed inside the support cylinder;

[0034] Multiple support legs are provided on the outer wall of the support cylinder.

[0035] In one possible implementation, the slide rail includes:

[0036] A chute is formed on the inner wall of the support cylinder, and the chute extends along the sliding direction of the drying oven;

[0037] A sliding plate is provided on the outer wall of the drying oven, and a portion of the sliding plate is inserted into the sliding groove.

[0038] The beneficial effects of the zinc sulfide powder drying device provided by the present invention are as follows: Compared with the prior art, the present invention, by setting up a support frame, a driving mechanism and a reset mechanism in combination, allows the hot air introduced into the drying chamber through the drying pipe to dry the zinc sulfide powder material in the drying chamber on the one hand, and on the other hand, to make the drying chamber swing back and forth along the slide rail, so that the zinc sulfide powder material in the drying chamber is always in a swinging state, thereby preventing agglomeration during the drying process. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the zinc sulfide powder drying device provided in an embodiment of the present invention;

[0041] Figure 2 This is a top view of the zinc sulfide powder drying apparatus provided in an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the internal structure of the drying oven provided in an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the structure of the top plate provided in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the installation component provided in an embodiment of the present invention;

[0045] Figure 6 This is a schematic diagram of the sealing assembly provided in an embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the sealing block provided in an embodiment of the present invention;

[0047] Figure 8 This is a schematic diagram of the structure of the driving plug provided in an embodiment of the present invention;

[0048] Figure 9 This is a schematic diagram of the structure during the unblocking of the sealing plug provided in an embodiment of the present invention;

[0049] Figure 10 This is a schematic diagram of the structure during the sealing process provided in an embodiment of the present invention;

[0050] Figure 11 This is a schematic diagram of the support frame provided in an embodiment of the present invention.

[0051] The labels for the attached figures are as follows:

[0052] 1. Support frame; 2. Drying oven; 3. Reset mechanism; 4. Drive cylinder;

[0053] 101. Support cylinder; 102. Support leg; 103. Slide groove;

[0054] 201. Drying tube; 202. Second filter element; 203. Housing; 204. Slot; 205. Top plate; 206. Second insertion ring;

[0055] 401. Connecting pipe; 402. Drive plug; 403. First pressure-reducing hole; 404. Sealing assembly; 405. Connecting rod; 406. Sealing plug; 407. Second pressure-reducing hole; 408. Pivoting hole; 409. First large-diameter section; 410. First small-diameter section; 411. Pipe clamp; 412. Clamping ring; 413. First drive pipe; 414. Second drive pipe; 415. Guide groove; 416. Motor; 417. Drive gear; 418. Driven ring. Detailed Implementation

[0056] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0057] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0058] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0059] The terms “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0060] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0061] The zinc sulfide powder drying apparatus provided by the present invention will now be described.

[0062] Please refer to the following: Figure 1 and Figure 2 The zinc sulfide powder drying device includes a support frame 1, a drying chamber 2, a drive mechanism, and a reset mechanism 3. The support frame 1 is located on the ground and has a slide rail. The drying chamber 2 is slidably mounted on the slide rail, and the powder material to be dried is placed inside the drying chamber 2. A drying pipe 201 is located at the bottom of the drying chamber 2, which is used to introduce hot air into the drying chamber 2. The drive mechanism is located on one side of the drying chamber 2 and is connected to the drying chamber 2. When the air pressure inside the drying chamber 2 increases, the drive mechanism can drive the drying chamber 2 to slide forward. The reset mechanism 3 is located between the drying chamber 2 and the support frame 1. When the drying chamber 2 slides forward, the reset mechanism 3 stores energy; when the air pressure inside the drying chamber 2 decreases, the reset mechanism 3 releases energy to drive the drying chamber 2 to slide in the reverse direction.

[0063] The beneficial effects of the zinc sulfide powder drying device provided in this embodiment are as follows: Compared with the prior art, the zinc sulfide powder drying device provided in this embodiment, by setting up a support frame 1, a drive mechanism and a reset mechanism 3 in cooperation, allows the hot air introduced into the drying chamber 2 through the drying pipe 201 to dry the zinc sulfide powder material in the drying chamber 2 on the one hand, and on the other hand, it can make the drying chamber 2 swing back and forth along the slide rail, so that the zinc sulfide powder material in the drying chamber 2 is always in a swinging state, thereby preventing agglomeration during the drying process.

[0064] like Figure 2 and Figure 6As shown, in this embodiment, the driving mechanism includes a driving cylinder 4, a connecting pipe 401, a driving plug 402, and a sealing assembly 404. The driving cylinder 4 is located on one side of the drying chamber 2 and is fixedly mounted on the support frame 1. The axial direction of the driving cylinder 4 is parallel to the sliding direction of the drying chamber 2. Specifically, two fixing rods are provided on the support frame 1, and a fixing ring is provided at the top of the fixing rod. The driving cylinder 4 passes through and is fixed to the fixing ring. One end of the connecting pipe 401 is connected to the driving cylinder 4, and the other end of the connecting pipe 401 is connected to the drying chamber 2. The driving plug 402 is located inside the driving cylinder 4, and the drying chamber 2 is connected to the driving plug 402. The driving plug 402 is provided with multiple first pressure-reducing holes 403. The sealing assembly 404 is connected to the driving plug 402 and can seal or release the first pressure-reducing holes 403.

[0065] During use, due to the connection pipe 401, the air pressure inside the drive cylinder 4 between the drive plug 402 and the connection pipe 401 is the same as the air pressure inside the drying chamber 2. The sealing assembly 404 seals the first pressure-reducing hole 403. At this time, as hot air enters the drying chamber 2, the pressure gradually increases, thus pushing the drive plug 402 to move within the drive cylinder 4. Since the drive plug 402 is connected to the drying chamber 2, the movement of the drive plug 402 can cause the drying chamber 2 to slide. When the sealing assembly 404 releases the seal on the first pressure-reducing hole 403, the gas inside the drying chamber 2 is discharged through the first pressure-reducing hole 403, and the air pressure decreases. At this time, the reset mechanism 3 releases energy, and the drying chamber 2 slides in the reverse direction.

[0066] like Figure 5 , Figure 9 and Figure 10 As shown, the sealing assembly 404 includes a connecting rod 405, a sealing plug 406, and a driving unit. The connecting rod 405 is L-shaped, with one end connected to the drying chamber 2 and the other end connected to the driving plug 402. The sealing plug 406 is rotatably mounted on the driving plug 402. The sealing plug 406 is annular, and the connecting rod 405 is inserted into the inner hole of the sealing plug 406. The sealing plug 406 has multiple second pressure-reducing holes 407, with a one-to-one correspondence between the first pressure-reducing hole 403 and the second pressure-reducing hole 407. Rotation of the sealing plug 406 can connect the corresponding first pressure-reducing hole 403 and the second pressure-reducing hole 407; conversely, rotation of the sealing plug 406 can also disconnect the connection between the first pressure-reducing hole 403 and the second pressure-reducing hole 407. The driving unit is mounted on the connecting rod 405 and connected to the sealing plug 406, and is used to drive the sealing plug 406 to rotate.

[0067] In actual use, when the drive unit drives the sealing plug 406 to rotate, the corresponding first pressure reducing hole 403 and second pressure reducing hole 407 are connected. At this time, the gas in the drying chamber 2 can be discharged, and the air pressure in the drying chamber 2 decreases. Conversely, when the first pressure reducing hole 403 and the second pressure reducing hole 407 are arranged alternately, the first pressure reducing hole 403 is blocked by the sealing plug 406, so that the gas in the drying chamber 2 cannot be discharged, thereby increasing the air pressure in the drying chamber 2.

[0068] Combination Figure 7 and Figure 8 As shown, the driving plug 402 is provided with a pivot hole 408, which includes a first large-diameter section 409 and a first small-diameter section 410. The sealing plug 406 is provided with a retaining tube 411. The inner diameter of the connecting tube 401 is the same as the diameter of the connecting rod 405. The top end of the retaining tube 411 is provided with a retaining ring 412. The outer diameter of the retaining ring 412 is the same as the diameter of the first large-diameter section 409, and the outer diameter of the retaining tube 411 is the same as the diameter of the first small-diameter section 410. The retaining ring 412 is inserted into the first large-diameter section, and the retaining tube 411 is inserted into the first small-diameter section, so that while the sealing plug 406 can rotate relative to the driving plug 402, the sealing plug 406 can also slide with the sliding of the driving plug 402.

[0069] like Figure 5 As shown, the drive unit includes a first drive tube 413, a second drive tube 414, and a motor 416. The first drive tube 413 is sleeved on the connecting rod 405, with one end connected to a sealing plug 406. A guide block is provided at the top of the first drive tube 413. The second drive tube 414 is sleeved on the connecting rod 405. The inner hole of the second drive tube 414 includes a second large-diameter section and a second small-diameter section. The diameter of the second small-diameter section is the same as the diameter of the connecting rod 405, and the diameter of the second large-diameter section is the same as the outer diameter of the first drive tube 413. A guide groove 415 is provided on the inner wall of the second large-diameter section, and the guide block is inserted into the guide groove 415. A portion of the first drive tube 413 is inserted into the second large-diameter section. A driven ring 418 is provided on the second drive tube 414. The motor 416 is mounted on the connecting rod 405, and a drive gear 417 is provided at the power output end of the motor 416. The drive gear 417 meshes with the driven ring 418.

[0070] In this embodiment, the second small-diameter section allows the second drive tube 414 to be fitted onto the connecting rod 405, while the second large-diameter section allows the first drive tube 413 to slide into the second large-diameter section, thus preventing interference with the sliding of the first drive tube 413. The guide block and guide groove 415 guide the sliding of the first drive tube 413, and when the motor 416 drives the second drive tube 414 to rotate, the first drive tube 413 rotates along with the second drive tube 414.

[0071] like Figure 3 As shown, the drying tube 201 is arranged in a zigzag shape at the bottom of the drying chamber 2. Multiple drying holes are evenly arranged on the drying tube 201, and the drying holes are located at the bottom of the drying tube. A first filter element is provided at the bottom of the drying tube 201, which covers the drying holes, so that the hot air discharged from the drying tube 201 is more uniform, which facilitates the more thorough drying of zinc sulfide. At the same time, the setting of the first filter element can prevent zinc sulfide powder from entering the drying tube 201.

[0072] In addition, the drying chamber 2 is equipped with a second filter element 202, which covers the connection between the connecting pipe 401 and the drying chamber 2. The second filter element 202 can prevent zinc sulfide powder from entering the connecting pipe 401.

[0073] like Figure 3 As shown, the reset mechanism includes either a spring or an air spring. Springs and air springs have simple structures and are easy to use.

[0074] like Figure 3 and Figure 4 As shown, the drying oven 2 includes a body 203, a bottom plate, and a top plate 205. The body 203 has openings at both the top and bottom. Slots 204 are provided on both the top and bottom surfaces of the body 203, and first threaded holes pass through these slots. A first insert ring with a second threaded hole is provided on the bottom plate. The first insert ring is inserted into the slot 204 on the bottom surface of the drying oven 2, and bolts are screwed into the corresponding first and second threaded holes to fix the bottom plate to the bottom of the drying oven 2. A second insert ring 206 with a third threaded hole is provided on the top plate 205. The second insert ring 206 is inserted into the slot 204 on the top surface of the drying oven 2, and bolts are screwed into the corresponding first and third threaded holes to fix the top plate 205 to the top of the drying oven 2. The engagement of slot 204 and the first insert ring allows the base plate to be more securely mounted at the bottom of the housing 203, while the engagement of slot 204 and the second insert ring 206 allows the base plate to be more securely fixed to the top of the housing 203.

[0075] like Figure 11 As shown, the support frame 1 includes a support cylinder 101 and multiple support legs 102. A slide rail is located on the inner wall of the support cylinder 101, and the drying chamber 2 is located inside the support cylinder 101. The multiple support legs 102 are located on the outer wall of the support cylinder 101. The structure is simple and easy to use; the support cylinder 101 provides a convenient mounting position for the slide rail and the reset mechanism 3.

[0076] Finally, the slide rail includes a slide groove 103 and a slide plate. The slide groove 103 is formed on the inner wall of the support cylinder 101 and extends along the sliding direction of the drying chamber 2. The slide plate is provided on the outer wall of the drying chamber 2, and a portion of the slide plate is inserted into the slide groove 103.

[0077] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A zinc sulfide powder drying device, characterized in that, include: A support frame (1) is provided on the ground, and a slide rail is provided on the support frame (1); The drying box (2) is slidably mounted on the slide rail. The powder material to be dried is placed inside the drying box (2). The bottom of the drying box (2) is provided with a drying pipe (201), which is used to introduce hot air into the drying box (2). A drive mechanism is located on one side of the drying box (2). The drive mechanism is connected to the drying box (2). When the air pressure inside the drying box (2) increases, the drive mechanism can drive the drying box (2) to slide forward. The reset mechanism (3) is located between the drying box (2) and the support frame (1). When the drying box (2) slides forward, the reset mechanism (3) stores energy; when the air pressure inside the drying box (2) decreases, the reset mechanism (3) releases energy to drive the drying box (2) to slide in the reverse direction. The drive mechanism includes: A drive cylinder (4) is located on one side of the drying box (2). The drive cylinder (4) is fixedly mounted on the support frame (1). The axial direction of the drive cylinder (4) is parallel to the sliding direction of the drying box (2). A connecting pipe (401) is provided, one end of which is connected to the drive cylinder (4), and the other end of which is connected to the drying box (2). A drive plug (402) is disposed inside the drive cylinder (4), and the drying box (2) is connected to the drive plug (402). The drive plug (402) is provided with a plurality of first pressure reducing holes (403). A sealing assembly (404) is connected to the driving plug (402), and the sealing assembly (404) is capable of sealing the first pressure-reducing hole (403) or releasing the sealing of the first pressure-reducing hole (403); The blocking assembly (404) includes: The connecting rod (405) is L-shaped. One end of the connecting rod (405) is connected to the drying box (2), and the other end of the connecting rod (405) is connected to the driving plug (402). A sealing plug (406) is rotatably mounted on the driving plug (402). The sealing plug (406) is annular. The connecting rod (405) is inserted into the inner hole of the sealing plug (406). The sealing plug (406) is provided with a plurality of second pressure-reducing holes (407). The first pressure-reducing hole (403) corresponds one-to-one with the second pressure-reducing hole (407). The sealing plug (406) can make the corresponding first pressure-reducing hole (403) and second pressure-reducing hole (407) connect due to rotation; and the sealing plug (406) can release the connection between the first pressure-reducing hole (403) and the second pressure-reducing hole (407) due to rotation. A drive unit is provided on the connecting rod (405), and the drive unit is connected to the sealing plug (406). The drive unit is used to drive the sealing plug (406) to rotate.

2. The zinc sulfide powder drying apparatus as described in claim 1, characterized in that: The drive plug (402) is provided with a pivot hole (408), which includes a first large diameter section (409) and a first small diameter section (410). The sealing plug (406) is provided with a retaining tube (411), the inner diameter of the retaining tube (411) is the same as the diameter of the connecting rod (405), the top end of the retaining tube (411) is provided with a retaining ring (412), the outer diameter of the retaining ring (412) is the same as the diameter of the first large diameter section (409), the outer diameter of the retaining tube (411) is the same as the diameter of the first small diameter section (410), the retaining ring (412) is inserted into the first large diameter section, and the retaining tube (411) is inserted into the first small diameter section.

3. The zinc sulfide powder drying apparatus as described in claim 2, characterized in that, The drive unit includes: The first drive tube (413) is sleeved on the connecting rod (405), one end of the first drive tube is connected to the sealing plug (406), and the top of the first drive tube (413) is provided with a guide block; The second drive tube (414) is sleeved on the connecting rod (405). The inner hole of the second drive tube (414) includes a second large diameter section and a second small diameter section. The diameter of the second small diameter section is the same as the diameter of the connecting rod (405). The diameter of the second large diameter section is the same as the outer diameter of the first drive tube (413). A guide groove (415) is provided on the inner wall of the second large diameter section. The guide block is inserted into the guide groove (415). A portion of the first drive tube (413) is inserted into the second large diameter section. A driven ring (418) is provided on the second drive tube (414). The motor (416) is mounted on the connecting rod (405). The power output end of the motor (416) is provided with a drive gear (417), which meshes with the driven ring (418).

4. The zinc sulfide powder drying apparatus as described in claim 3, characterized in that: The drying tube (201) is arranged in a zigzag shape at the bottom of the drying box (2). Multiple drying holes are evenly provided on the drying tube (201). The drying holes are located at the bottom of the drying tube. A first filter element is provided at the bottom of the drying tube (201). The first filter element covers the drying holes. The drying oven (2) is provided with a second filter element (202), which covers the connection between the connecting pipe (401) and the drying oven (2).

5. The zinc sulfide powder drying apparatus as described in claim 4, characterized in that: The reset mechanism includes either a spring or an air spring.

6. The zinc sulfide powder drying apparatus as described in claim 5, characterized in that: The drying oven (2) includes a box body (203), a bottom plate and a top plate (205). The top and bottom of the box body (203) are both open. The top end face and the bottom end face of the box body (203) are both provided with slots (204). A first threaded hole is provided through the slots (204). The base plate is provided with a first insert ring, and the first insert ring is provided with a second threaded hole. The first insert ring is inserted into the slot (204) on the bottom end face of the drying box (2), and the bolt is screwed into the corresponding first threaded hole and second threaded hole so that the base plate is fixed to the bottom of the drying box (2). The top plate (205) is provided with a second insert ring (206), and the second insert ring (206) is provided with a third threaded hole. The second insert ring (206) is inserted into the slot (204) on the top end face of the drying box (2), and the bolt is screwed into the corresponding first threaded hole and third threaded hole so that the top plate (205) is fixed to the top of the drying box (2).

7. The zinc sulfide powder drying apparatus as described in claim 6, characterized in that, The support frame (1) includes: The support cylinder (101) has a slide rail on its inner wall and the drying box (2) is located inside the support cylinder (101). Multiple support legs (102) are provided on the outer wall of the support cylinder (101).

8. The zinc sulfide powder drying apparatus as described in claim 7, characterized in that, The slide rail includes: A chute (103) is formed on the inner wall of the support cylinder (101), and the chute (103) extends along the sliding direction of the drying box (2); A sliding plate is provided on the outer wall of the drying box (2), and a portion of the sliding plate is inserted into the sliding groove (103).

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