Granulator for preparing zinc sulfide particles

Abstract

The invention belongs to the technical field of granulation equipment, and particularly relates to a granulator for preparing zinc sulfide granules, which mainly comprises a rack, a drum screen and a first driving motor, one end of the top of the rack is provided with a crushing box for primarily crushing raw materials, the other end of the top of the rack is provided with a material distributing hopper for distributing the materials, and one end of the bottom of the rack is provided with grinding equipment for grinding the materials. The drum screen is used for processing particles with too small particle sizes and composed of an inner drum and an outer drum, and the outer drum is rotatably installed on the machine frame and connected with the first driving motor through a chain wheel gear ring and a chain. Meshes are formed in the surface of the inner cylinder, and a spiral material blocking plate surrounds the inner wall of the inner cylinder. The equipment integrates the functions of crushing, screening and grinding, and can efficiently and continuously complete preparation of zinc sulfide particles.

Description

Technical Field

[0001] The invention belongs to the technical field of granulation equipment, and in particular relates to a granulator used for preparing zinc sulfide particles. Background Art

[0002] Zinc sulfide is an inorganic compound with multiple application values. It is composed of zinc and sulfur elements. Its unique physical and chemical properties make it an important material in many fields.

[0003] Zinc sulfide sintering refers to the process of hot pressing zinc sulfide powder through a sintering process to obtain a zinc sulfide sintered body with a certain shape and density. Zinc sulfide sintered body has a high refractive index in the visible light range, which makes it an ideal material for preparing optical devices and optical films.

[0004] In the optical and infrared fields, zinc sulfide sintered bodies need to be crushed into particles or powders of a certain size to meet the needs of specific applications. When the existing crushing and granulation equipment is used, the crushed zinc sulfide sintered bodies often appear mixed with lumps and powders, which not only has an adverse effect on product quality, but also increases the difficulty of the subsequent processing, such as reducing the efficiency of screening, cleaning and other steps. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention proposes a granulator for preparing zinc sulfide particles, aiming to achieve uniform crushing and accurate classification of zinc sulfide sintered bodies. The equipment integrates crushing, screening and grinding functions, and can efficiently and continuously complete the preparation of zinc sulfide particles, thereby improving production efficiency and product quality. This is specifically achieved through the following technical solutions: A granulator for preparing zinc sulfide particles, comprising a frame and a drum screen, wherein a crushing box is arranged at one end of the top of the frame, a material distribution hopper is arranged at the other end of the top of the frame, a grinding device is arranged at one end of the bottom of the frame, a first driving motor is arranged on one side of the frame, a sprocket is fixed to the output shaft of the first driving motor, the drum screen comprises an inner cylinder and an outer cylinder, the outer cylinder is rotatably mounted on the top of the frame, a sprocket ring is sleeved at one end of the outer cylinder, the sprocket ring is connected to the sprocket through a chain, the inner cylinder is sleeved inside the outer cylinder, and the surface is opened. A plurality of meshes are provided, and a plurality of groups of spiral material blocking plates are arranged around the inner wall of the inner cylinder. One end of the inner wall of the outer cylinder is connected to the outer wall of the inner cylinder through a retaining ring, and the other end of the inner wall of the outer cylinder is connected to the outer wall of the inner cylinder through a plurality of groups of surrounding support plates. The shape of the support plate is a spiral shape opposite to the material blocking plate. A discharge pipe is provided at the bottom of the crushing box, and one end of the discharge pipe extends into the interior of the inner cylinder. The inner cavity of the distribution hopper is separated into a first discharge pipe corresponding to the outer cylinder and a second discharge pipe corresponding to the inner cylinder by a partition plate. One end of the first discharge pipe is connected to the feed port of the grinding equipment.

[0006] Preferably, the crushing box includes a box body, a first crushing mechanism and a second crushing mechanism, a feed hopper is fixed on the top of the box body, the discharge pipe is fixed on the bottom of the box body, and the first crushing mechanism and the second crushing mechanism are sequentially arranged inside the box body from top to bottom.

[0007] Preferably, the first crushing mechanism comprises a fixed crushing roller and a movable crushing roller arranged side by side, the movable crushing roller is slidably mounted inside the box body via a second bearing seat arranged at both ends of its rotating shaft, and the fixed crushing roller is fixedly mounted inside the box body via a third bearing seat arranged at both ends of its rotating shaft, a second driving motor is fixed to one side of the box body, the second driving motor drives the synchronous rotation of the fixed crushing roller and the movable crushing roller through a linkage mechanism, and a pushing component is arranged on one side of the box body, the pushing component drives the movable crushing roller to approach or move away from the fixed crushing roller.

[0008] Preferably, the linkage mechanism includes a first swing arm and a second swing arm, one end of the rotating shaft of the movable crushing roller passes through the first swing arm, and the other end of the rotating shaft of the movable crushing roller passes through the second swing arm, the first swing arm is linked to the second swing arm through a pushing component, first bearing seats are fixed on both sides of the box body, one of the first bearing seats is equipped with a first rotating shaft, and the other first bearing seat is equipped with a second rotating shaft, the first rotating shaft is fixedly connected to the output shaft of the second driving motor through a coupling, the shaft body of the first rotating shaft is fixed with a first gear, and both ends of the rotating shaft of the movable crushing roller are fixed with a third gear, A sixth gear is fixed at both ends of the rotating shaft of the crushing roller, one end of the first swing arm is rotatably connected to the first rotating shaft, one end of the second swing arm is rotatably connected to the second rotating shaft, a second gear meshing with the third gear and the first gear is installed on one side of the first swing arm, a second connecting rod is hinged on one side of the first swing arm and the second swing arm, a fourth gear meshing with the third gear is installed on one side of the second connecting rod, a first connecting rod is hinged on the end of the second connecting rod, an end of the first connecting rod is rotatably connected to the rotating shaft of the fixed crushing roller, and a fifth gear meshing with the fourth gear and the sixth gear is installed on one side of the first connecting rod.

[0009] Preferably, the pushing component includes a hydraulic cylinder, a connecting rod is fixed between the first swing arm and the second swing arm, a support frame is fixed to one side of the box body, one end of the hydraulic cylinder is hinged to the support frame, and the other end of the hydraulic cylinder is hinged to the connecting rod, and one side of the box body is provided with an in-position sensor corresponding to the first swing arm.

[0010] Preferably, a first material guide plate and a second material guide plate are provided inside the box body, the second material guide plate is located between the second crushing mechanism and the discharge pipe, and the first material guide plate is located between the first crushing mechanism and the second crushing mechanism.

[0011] Preferably, the spiral direction of the material blocking plate is opposite to the rotation direction of the outer cylinder, and the spiral direction of the support plate is the same as the rotation direction of the outer cylinder.

[0012] Preferably, a support seat is provided on the top of the frame, a plurality of groups of support rollers arranged in pairs are provided on the inner bottom of the support seat, an annular guide rail corresponding to the number of support roller groups is provided on the outside of the outer cylinder, and the support rollers are snapped into the annular guide rail.

[0013] After adopting the above technical solution, the beneficial effects of the present invention are: The crushed zinc sulfide particles are screened through a drum screen, and the zinc sulfide particles with too small a particle size fall into the outer cylinder through the mesh, and then are sent to the grinding equipment for grinding to obtain a powder product. The zinc sulfide particles remaining in the inner cylinder are discharged through the second discharge pipe to obtain a granular product. The crushing, screening and grinding functions are integrated into one, and the preparation of zinc sulfide particles and zinc sulfide powder can be completed efficiently and continuously. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural diagram of one side of the crushing box; Figure 3 It is a schematic diagram of the structure on the other side of the crushing box; Figure 4 This is a schematic diagram of the internal structure of the crushing box; Figure 5 It is a structural schematic diagram of the first crushing mechanism; Figure 6 This is a schematic diagram of the installation of the drum screen; Figure 7 It is a structural schematic diagram of the support seat; Figure 8 It is a structural schematic diagram of the drum screen.

[0016] Figure numerals: 1-crushing box, 2-first drive motor, 3-frame, 4-grinding equipment, 5-first discharge pipe, 6-second discharge pipe, 7-partition plate, 8-drum screen, 9-first crushing mechanism, 10-hydraulic cylinder, 11-second drive motor, 12-linkage mechanism, 13-box, 14-first bearing seat, 15-discharge pipe, 16-feed hopper, 17-first guide plate, 18-fixed crushing roller, 19-moving crushing roller, 20-second guide plate, 21-first gear, 22-first linkage Rod, 23-second gear, 24-second connecting rod, 25-first swing arm, 26-second bearing seat, 27-support frame, 28-connecting rod, 29-second swing arm, 30-third gear, 31-fourth gear, 32-fifth gear, 33-sixth gear, 34-third bearing seat, 35-sprocket, 36-support seat, 37-inner cylinder, 38-outer cylinder, 39-annular guide rail, 40-sprocket ring, 41-support roller, 42-support plate, 43-retaining ring, 44-mesh, 45-material blocking plate. DETAILED DESCRIPTION

[0017] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0018] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0019] like Figure 1As shown, a granulator for preparing zinc sulfide particles is mainly composed of a frame 3 and a drum screen 8. The frame 3 is provided with a crushing box 1, a dividing hopper and a grinding device 4. The crushing box 1 is located at one end of the top of the frame 3 and is used for crushing and granulating the raw materials. The dividing hopper is located at the other end of the top of the frame 3 and is used to distribute zinc sulfide materials of different particle sizes. A crushing box 1 is provided at one end of the top of the frame 3, and a dividing hopper is provided at the other end of the top of the frame 3. The inner cavity of the dividing hopper is separated into a first discharge pipe 5 and a second discharge pipe 6 by a partition plate 7. The grinding device 4 is located at one end of the bottom of the frame 3, and the feed port of the grinding device 4 is connected to the first discharge pipe 5, which is used to receive and process the crushed zinc sulfide material.

[0020] like Figures 6 to 8 As shown, the drum screen 8 includes an inner cylinder 37 and an outer cylinder 38, and the inner cylinder 37 is sleeved inside the outer cylinder 38 to form a double-layer rotary screening structure. One end of the inner cylinder 37 corresponds to the second discharge pipe 6, and one end of the outer cylinder 38 corresponds to the first discharge pipe 5. A plurality of meshes 44 are provided on the surface of the inner cylinder 37 for separating zinc sulfide materials of different particle sizes. A support seat 36 is provided on the top of the frame 3, and a plurality of groups of supporting rollers 41 arranged in pairs are provided on the inner bottom of the support seat 36. The outer side of the outer cylinder 38 is provided with an annular guide rail 39 corresponding to the number of groups of supporting rollers 41. These supporting rollers 41 are inserted into the corresponding annular guide rails 39, which not only provide stable support for the outer cylinder 38, but also provide precise guidance for the rotation of the outer cylinder 38.

[0021] A first drive motor 2 is provided on one side of the frame 3, and a sprocket 35 is fixed to the output shaft of the first drive motor 2. A sprocket ring 40 is sleeved on one end of the outer cylinder 38, and the sprocket ring 40 is connected to the sprocket 35 through a chain. Driven by the first drive motor 2, the outer cylinder 38 rotates, thereby driving the materials in the inner cylinder 37 to be screened.

[0022] The inner wall of the inner cylinder 37 is surrounded by a plurality of spiral material blocking plates 45, and the rotation direction of the material blocking plates 45 is opposite to the rotation direction of the outer cylinder 38. One end of the inner wall of the outer cylinder 38 is connected to the outer wall of the inner cylinder 37 through a retaining ring 43, and the other end of the inner wall of the outer cylinder 38 is connected to the outer wall of the inner cylinder 37 through a plurality of surrounding support plates 42, and the rotation direction of the support plates 42 is the same as the rotation direction of the outer cylinder 38.

[0023] The retaining ring 43 and the support plate 42 serve as "support components" to ensure that the inner cylinder 37 is stably and effectively installed inside the outer cylinder 38. The spiral direction of the support plate 42 is the same as the rotation direction of the outer cylinder 38, like a "screw" rotating in the same direction, which can quickly discharge the material in the outer cylinder 38, improve the discharge efficiency of the material, and reduce the residual material in the outer cylinder 38. When the drum screen 8 rotates, since the spiral direction of the material blocking plate 45 is opposite to the rotation direction of the outer cylinder 38, it is like a "screw" rotating in the opposite direction, which "pushes back" the material in the inner cylinder 37, thereby extending the residence time of the material in the inner cylinder 37. By extending the residence time of the material in the inner cylinder 37, the material has more opportunities to contact the inner cylinder 37, thereby improving the efficiency and quality of screening. At the same time, it also helps to prevent the material from clogging the mesh 44 during the screening process, because the material is constantly stirred and pushed, reducing the possibility of clogging.

[0024] like Figures 2 to 4 As shown, the crushing box 1 includes a box body 13, a first crushing mechanism 9 and a second crushing mechanism. A feed hopper 16 is fixed to the top of the box body 13, and a discharge pipe 15 is fixed to the bottom of the box body 13, and one end of the discharge pipe 15 extends into the inner tube 37. In the box body 13, the first crushing mechanism 9 and the second crushing mechanism are arranged from top to bottom, responsible for step-by-step crushing. In order to optimize the flow of materials, two guide plates are also provided in the box body 13: the first guide plate 17 is located below the first crushing mechanism 9 to guide the materials to the second crushing mechanism; the second guide plate 20 is provided between the second crushing mechanism and the discharge pipe 15 to ensure that the crushed materials are discharged smoothly.

[0025] The first crushing mechanism 9 and the second crushing mechanism adopt the same design, and the first crushing mechanism 9 is taken as an example for explanation.

[0026] like Figure 5 As shown, the first crushing mechanism 9 is mainly composed of a fixed crushing roller 18 and a movable crushing roller 19, which are arranged side by side and are used to crush materials. The movable crushing roller 19 is installed inside the box body 13 through a second bearing seat 26 arranged at both ends of its rotating shaft, and the second bearing seat 26 is slidably connected to the box body 13 through an arc-shaped slide rail, and the fixed crushing roller 18 is fixedly installed inside the box body 13 through a third bearing seat 34 arranged at both ends of its rotating shaft.

[0027] A second drive motor 11 is fixed to one side of the box 13, and the second drive motor 11 drives the synchronous rotation of the fixed crushing roller 18 and the movable crushing roller 19 through the linkage mechanism 12. A pushing component is provided on one side of the box 13, and the pushing component drives the movable crushing roller 19 to approach or move away from the fixed crushing roller 18. By adjusting the gap between the movable crushing roller 19 and the fixed crushing roller 18, the first crushing mechanism 9 can flexibly adapt to materials of different sizes and control the particle size of the crushed materials.

[0028] The linkage mechanism 12 includes a first swing arm 25 and a second swing arm 29. One end of the rotating shaft of the movable crushing roller 19 passes through the first swing arm 25, and the other end of the rotating shaft of the movable crushing roller 19 passes through the second swing arm 29. The first swing arm 25 is linked to the second swing arm 29 through a pushing component. The pushing component includes a hydraulic cylinder 10, a connecting rod 28 is fixed between the first swing arm 25 and the second swing arm 29, and a support frame 27 is fixed to one side of the box 13. One end of the hydraulic cylinder 10 is hinged to the support frame 27, and the other end of the hydraulic cylinder 10 is hinged to the connecting rod 28. A position sensor corresponding to the first swing arm 25 is provided on one side of the box 13, which is used to detect the position of the first swing arm 25, thereby ensuring that the movable crushing roller 19 can accurately move to the predetermined position.

[0029] First bearing seats 14 are fixed on both sides of the box body 13, wherein a first rotating shaft is installed on one first bearing seat 14, and a second rotating shaft is installed on the other first bearing seat 14. The first rotating shaft is fixedly connected to the output shaft of the second drive motor 11 through a coupling to provide power for the entire first crushing mechanism 9. A first gear 21 is fixed to the shaft body of the first rotating shaft to serve as the starting point of the transmission chain.

[0030] The third gear 30 is fixed to both ends of the rotating shaft of the movable crushing roller 19, one end of the first swing arm 25 is rotatably connected to the first rotating shaft, and the second gear 23 meshing with the third gear 30 and the first gear 21 is installed on one side of the first swing arm 25. When the first rotating shaft is driven to rotate by the second driving motor 11, the first gear 21 drives the second gear 23 to rotate, and the second gear 23 drives the third gear 30 meshing therewith to rotate, thereby driving the movable crushing roller 19 to rotate.

[0031] The sixth gear 33 is fixed to both ends of the rotating shaft of the fixed crushing roller 18. The second connecting rod 24 is hinged to one side of the first swing arm 25 and the second swing arm 29, and the fourth gear 31 meshing with the third gear 30 is installed on one side of the second connecting rod 24. The first connecting rod 22 is hinged to the end of the second connecting rod 24, and the end of the first connecting rod 22 is rotatably connected to the rotating shaft of the fixed crushing roller 18. The fifth gear 32 meshing with the fourth gear 31 and the sixth gear 33 is installed on one side of the first connecting rod 22. When the movable crushing roller 19 rotates, the fourth gear 31 is driven to rotate by the third gear 30, and the fourth gear 31 transmits power to the fifth gear 32, driving the fifth gear 32 to rotate, and the fifth gear 32 drives the sixth gear 33 meshing therewith to rotate, thereby realizing the synchronous rotation of the fixed crushing roller 18.

[0032] In order to ensure that the rotation frequency of the fixed crushing roller 18 and the movable crushing roller 19 is consistent, the transmission ratio between the first gear 21 and the third gear 30 is consistent with the transmission ratio between the third gear 30 and the sixth gear 33. In order to achieve material crushing, the fixed crushing roller 18 and the movable crushing roller 19 must rotate in opposite directions. Figure 4 Taking the perspective of as an example, the rotation direction of the crushing roller 18 is set to be clockwise.

[0033] When the gap between the two needs to be adjusted, the hydraulic cylinder 10 pushes or pulls the connecting rod 28, so that the first swing arm 25 swings around the first rotating shaft, and at the same time, the second swing arm 29 swings around the second rotating shaft. Since the two ends of the movable crushing roller 19 pass through the first swing arm 25 and the second swing arm 29 respectively, the position of the movable crushing roller 19 is changed. By adjusting the rotation angle of the two swing arms, the gap between the movable crushing roller 19 and the fixed crushing roller 18 can be accurately controlled to meet different crushing requirements. During the adjustment process, the in-place sensor monitors the position change of the first swing arm 25 in real time to determine whether the movable crushing roller 19 is adjusted in place. When the first swing arm 25 rotates to the predetermined position, the in-place sensor will send a signal indicating that the movable crushing roller 19 has been adjusted in place. This signal can be used by the control system to stop the telescopic movement of the hydraulic cylinder 10, thereby locking the new position of the movable crushing roller 19.

[0034] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A granulator for preparing zinc sulfide particles, characterized in that: The invention comprises a frame (3) and a drum screen (8), wherein a crushing box (1) is provided at one end of the top of the frame (3), a material distribution hopper is provided at the other end of the top of the frame (3), a grinding device (4) is provided at one end of the bottom of the frame (3), a first drive motor (2) is provided on one side of the frame (3), a sprocket (35) is fixed to the output shaft of the first drive motor (2), the drum screen (8) comprises an inner cylinder (37) and an outer cylinder (38), the outer cylinder (38) is rotatably mounted on the top of the frame (3), a sprocket gear ring (40) is sleeved at one end of the outer cylinder (38), the sprocket gear ring (40) is connected to the sprocket (35) via a chain, the inner cylinder (37) is sleeved inside the outer cylinder (38), and a plurality of meshes (44) are provided on the surface. The inner wall of the inner cylinder (37) is surrounded by a plurality of groups of spiral material blocking plates (45); one end of the inner wall of the outer cylinder (38) is connected to the outer wall of the inner cylinder (37) via a retaining ring (43); the other end of the inner wall of the outer cylinder (38) is connected to the outer wall of the inner cylinder (37) via a plurality of groups of surrounding support plates (42); the spiral direction of the support plates (42) is opposite to that of the material blocking plates (45); a discharge pipe (15) is provided at the bottom of the crushing box (1); one end of the discharge pipe (15) extends into the interior of the inner cylinder (37); the inner cavity of the distribution hopper is separated into a first discharge pipe (5) corresponding to the outer cylinder (38) and a second discharge pipe (6) corresponding to the inner cylinder (37) via a partition plate (7); one end of the first discharge pipe (5) is connected to the feed port of the grinding equipment (4).

2. The granulator for preparing zinc sulfide particles according to claim 1, characterized in that: The crushing box (1) comprises a box body (13), a first crushing mechanism (9) and a second crushing mechanism; a feed hopper (16) is fixed to the top of the box body (13); the discharge pipe (15) is fixed to the bottom of the box body (13); and the first crushing mechanism (9) and the second crushing mechanism are arranged in sequence inside the box body (13) from top to bottom.

3. The granulator for preparing zinc sulfide particles according to claim 2, characterized in that: The first crushing mechanism (9) comprises a fixed crushing roller (18) and a movable crushing roller (19) arranged side by side, the movable crushing roller (19) being slidably mounted inside the housing (13) via second bearing seats (26) arranged at both ends of its rotating shaft, the fixed crushing roller (18) being fixedly mounted inside the housing (13) via third bearing seats (34) arranged at both ends of its rotating shaft, a second drive motor (11) being fixed on one side of the housing (13), the second drive motor (11) driving the fixed crushing roller (18) and the movable crushing roller (19) to rotate synchronously via a linkage mechanism (12), and a pushing component being arranged on one side of the housing (13), the pushing component driving the movable crushing roller (19) to move closer to or away from the fixed crushing roller (18).

4. The granulator for preparing zinc sulfide particles according to claim 3, characterized in that: The linkage mechanism (12) comprises a first swing arm (25) and a second swing arm (29); one end of the rotating shaft of the movable crushing roller (19) passes through the first swing arm (25); the other end of the rotating shaft of the movable crushing roller (19) passes through the second swing arm (29); the first swing arm (25) is linked to the second swing arm (29) via a pushing component; first bearing seats (14) are fixed on both sides of the housing (13); one of the first bearing seats (14) is equipped with a first rotating shaft; the other first bearing seat (14) is equipped with a second rotating shaft; the first rotating shaft is fixedly connected to the output shaft of the second drive motor (11) via a coupling; a first gear (21) is fixed to the shaft body of the first rotating shaft; both ends of the rotating shaft of the movable crushing roller (19) are fixed with a third gear (30); both ends of the rotating shaft of the fixed crushing roller (18) are fixed with a third gear (31); A sixth gear (33) is fixed thereto, one end of the first swing arm (25) is rotatably connected to the first rotating shaft, one end of the second swing arm (29) is rotatably connected to the second rotating shaft, one side of the first swing arm (25) is mounted with a second gear (23) meshing with the third gear (30) and the first gear (21), one side of the first swing arm (25) and the second swing arm (29) are both hingedly connected with a second connecting rod (24), one side of the second connecting rod (24) is mounted with a fourth gear (31) meshing with the third gear (30), the end of the second connecting rod (24) is hingedly connected with a first connecting rod (22), the end of the first connecting rod (22) is rotatably connected to the rotating shaft of the fixed crushing roller (18), and one side of the first connecting rod (22) is mounted with a fifth gear (32) meshing with the fourth gear (31) and the sixth gear (33).

5. The granulator for preparing zinc sulfide particles according to claim 4, characterized in that: The pushing component comprises a hydraulic cylinder (10), a connecting rod (28) is fixed between the first swing arm (25) and the second swing arm (29), a support frame (27) is fixed to one side of the box (13), one end of the hydraulic cylinder (10) is hinged to the support frame (27), and the other end of the hydraulic cylinder (10) is hinged to the connecting rod (28), and one side of the box (13) is provided with an in-position sensor corresponding to the first swing arm (25).

6. The granulator for preparing zinc sulfide particles according to claim 2, characterized in that: A first material guide plate (17) and a second material guide plate (20) are provided inside the box body (13); the second material guide plate (20) is located between the second crushing mechanism and the discharge pipe (15); and the first material guide plate (17) is located between the first crushing mechanism (9) and the second crushing mechanism.

7. The granulator for preparing zinc sulfide particles according to claim 1, characterized in that: The spiral direction of the material blocking plate (45) is opposite to the rotation direction of the outer cylinder (38), and the spiral direction of the support plate (42) is the same as the rotation direction of the outer cylinder (38).

8. The granulator for preparing zinc sulfide particles according to claim 1, characterized in that: A support seat (36) is provided on the top of the frame (3); a plurality of groups of supporting rollers (41) arranged in pairs are provided on the inner bottom of the support seat (36); an annular guide rail (39) corresponding in number to the number of groups of supporting rollers (41) is provided on the outside of the outer cylinder (38); and the supporting rollers (41) are snapped into the annular guide rail (39).

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