Polypropylene granule drying and screening device

Abstract

The utility model belongs to the technical field of drying and screening, and particularly relates to a polypropylene granule drying and screening device which comprises a bottom plate, a screening box is fixedly connected to the position, close to the center, of the upper surface of the bottom plate, a rotating box is fixedly connected to the position, close to the upper edge, of the inner wall of the screening box, and a stirring component is rotationally connected to the side edge of an inner cavity of the rotating box and comprises a rotating column. A plurality of heating plates are fixedly connected to the outer wall of the rotating column, a connecting rod is rotationally connected into the rotating column, a first driving gear is fixedly connected to the other end of the connecting rod, and a rotating assembly is rotationally connected to the outer wall of the first driving gear in an engaged mode. According to the polypropylene granule drying and screening device, a motor rotates to drive a rotating gear, the rotating gear drives a second transmission belt to operate, so that a stirring and dispersing part rotates, a connecting rod in a rotating column is driven to drive a first driving gear to rotate, and dispersing blades rotate in a rotating groove in a heating plate; caked granules are scattered, and it is ensured that the granules are heated more uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of drying and screening, in particular to a drying and screening device for polypropylene pellets. Background Art

[0002] Polypropylene began industrial production in the 1950s. After decades of development, its production technology has been continuously improved, and its product performance has also been continuously enhanced. From the initial low-isotactic polypropylene to the current high-isotactic and high-crystallinity polypropylene, its mechanical properties, heat resistance, chemical corrosion resistance, etc. have been greatly improved.

[0003] However, in the prior art, when polypropylene pellets are dried and screened, drying may be incomplete due to caking of polypropylene pellets. The caked polypropylene has a large volume and is likely to block the screen of the screening device, reducing the screening efficiency. This not only affects the normal production progress but also requires frequent shutdowns to clean the screen, increasing labor costs and equipment maintenance costs. Summary of the Utility Model

[0004] In order to overcome the defects of the prior art pointed out above, the inventor of the present utility model has conducted in-depth research and completed the present utility model after a large amount of creative labor.

[0005] Specifically, the technical problem to be solved by the present utility model is: to provide a drying and screening device for polypropylene pellets to solve the technical problem of incomplete drying caused by caking of polypropylene pellets at present.

[0006] To solve the above technical problem, the present utility model provides the following technical solution:

[0007] A drying and screening device for polypropylene pellets, including a bottom plate. A screening box is fixedly connected to the upper surface of the bottom plate near the center. A driving component is fixedly connected to one side of the outer wall of the screening box near the bottom. A rotating box is fixedly connected to the inner wall of the screening box near the upper edge. A dispersing component is rotatably connected to the side of the inner cavity of the rotating box.

[0008] The dispersing component includes a rotating column rotatably connected to the rotating box. A plurality of heating plates are fixedly connected to the outer wall of the rotating column. A pushing plate is perpendicularly fixedly connected to the other end of the heating plate. A rotating groove is opened near the center at the lower end of the heating plate. A connecting rod is rotatably connected to the inside of the rotating column. The other end of the connecting rod is fixedly connected to a first driving gear. A rotating component is meshed and rotatably connected to the outer wall of the first driving gear.

[0009] As an improved technical solution, the rotating assembly includes a bevel gear rotatably connected to the first driving gear. A fixing column is fixedly connected to the end of the bevel gear. The fixing column penetrates through the rotating column and is fixedly connected to a rotating rod. A plurality of rotating rings are rotatably connected to the outer wall of the rotating rod. A dispersion blade is fixedly connected to one side of the rotating ring. A fixed end is fixedly connected to the top of the rotating rod.

[0010] As an improved technical solution, a feeding hole is opened at the upper end of the rotating box, and a plurality of screening holes are opened at the bottom of the inner cavity of the rotating box. The pushing plate fits the screening holes.

[0011] As an improved technical solution, the driving assembly includes a motor fixedly connected to the screening box. A rotating column is fixedly connected to the output end of the motor. A first transmission belt is rotatably connected to the outer wall of the rotating column near the bottom. The other end of the first transmission belt is rotatably connected to a first connecting column inside. A second driving gear is fixedly connected to the bottom end of the first connecting column.

[0012] As an improved technical solution, a rotating gear is vertically meshed and rotatably connected to the bottom of the second driving gear. A second transmission belt is rotatably connected to the outer wall of the rotating gear. The other end of the second transmission belt is rotatably connected to a second connecting column inside. The inner end of the second connecting column is fixedly connected to the rotating column.

[0013] As an improved technical solution, a horizontal groove is opened at the same side of the screening box as the motor. A filter plate is fixedly connected inside the horizontal groove. A vibration groove is opened near the center at the outer bottom of the filter plate. A vibration blade is fixedly connected to the outer wall of the rotating column near the upper edge. The vibration blade rotates inside the vibration groove.

[0014] After adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, the motor rotates to drive the first transmission belt to rotate. While rotating, the second driving gear drives the rotating gear, and the rotating gear drives the second transmission belt to operate, so that the stirring and dispersing component rotates. While rotating, the connecting rod inside the rotating column drives the first driving gear to rotate, so that the dispersion blade rotates inside the rotating groove of the heating plate, drying the polypropylene pellets and dispersing the agglomerated pellets at the same time, ensuring that the pellets are heated more evenly, avoiding local overheating or insufficient drying, and thus improving the drying efficiency and quality.

[0016] 2. In the present utility model, the motor rotates to drive the rotating column to rotate, and at the same time drives the vibration blade at the top to rotate inside the vibration groove of the filter plate, continuously vibrating the filter plate, avoiding the accumulation of particles on the surface of the filter plate and blocking the pores, and improving the screening rate. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the polypropylene pellet drying and screening device of the present utility model.

[0019] Figure 2 It is a schematic diagram of the overall sectional structure of the polypropylene pellet drying and screening device of the present utility model.

[0020] Figure 3 It is a schematic diagram of the drive assembly structure of the polypropylene pellet drying and screening device of the present utility model.

[0021] Figure 4 It is a schematic diagram of the stirring and dispersing component structure of the polypropylene pellet drying and screening device of the present utility model.

[0022] Figure 5 It is a schematic diagram of the rotating assembly structure of the polypropylene pellet drying and screening device of the present utility model.

[0023] Description of the reference numerals:

[0024] 1. Bottom plate; 11. Screening box; 12. Rotating box; 13. Feeding hole; 14. Screening hole; 15. Horizontal groove;

[0025] 2. Stirring and dispersing component; 21. Rotating column; 22. Connecting rod; 23. First driving gear; 24. Rotating assembly; 25. Heating plate; 26. Pushing plate; 27. Rotating groove;

[0026] 241. Bevel gear; 242. Fixed column; 243. Dispersing blade; 244. Rotating ring; 245. Fixed end; 246. Rotating rod;

[0027] 3. Drive assembly; 31. First transmission belt; 32. Rotating column; 33. Vibration blade; 34. Second driving gear; 35. Rotating gear; 36. First connecting column; 37. Second transmission belt; 38. Second connecting column; 39. Motor;

[0028] 4. Filter plate; 41. Vibration groove. Detailed Embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] At the same time, the meaning of "and / or" or "and / or" that appears throughout the text is to include three solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously.

[0032] In addition, in the present invention, the descriptions such as "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] As Figure 4 and Figure 5 As commonly shown, this embodiment provides a polypropylene granule drying and screening device. This polypropylene granule drying and screening device includes a bottom plate 1. A screening box 11 is fixedly connected to the upper surface of the bottom plate 1 near the center. A driving component 3 is fixedly connected to one side of the outer wall of the screening box 11 near the bottom. A rotating box 12 is fixedly connected to the inner wall of the screening box 11 near the upper edge. A dispersing component 2 is rotatably connected to the side of the inner cavity of the rotating box 12.

[0034] The stirring and dispersing component 2 includes a rotating column 21 rotatably connected to the rotating box 12. A plurality of heating plates 25 are fixedly connected to the outer wall of the rotating column 21. At the other end of the heating plate 25, a pushing plate 26 is perpendicularly fixedly connected. A rotating groove 27 is formed near the center at the lower end of the heating plate 25. A connecting rod 22 is rotatably connected inside the rotating column 21. The other end of the connecting rod 22 is fixedly connected with a first driving gear 23. A rotating component 24 is rotatably connected to the outer wall of the first driving gear 23. When the rotating column 21 rotates, the heating plate 25 drives the granular material to be dried and flipped, and at the same time, the rotating component 24 disperses the agglomerated granular material inside to avoid local overheating or insufficient drying.

[0035] The rotating component 24 includes a bevel gear 241 rotatably connected to the first driving gear 23. A fixing column 242 is fixedly connected to the end of the bevel gear 241. The fixing column 242 passes through the rotating column 21 and is fixedly connected with a rotating rod 246. A plurality of rotating rings 244 are rotatably connected to the outer wall of the rotating rod 246. A dispersing blade 243 is fixedly connected to one side of the rotating ring 244. A fixed end 245 is fixedly connected to the top of the rotating rod 246. The dispersing blade 243 rotates inside the rotating groove 27 to stir and disperse the granular material.

[0036] As Figure 1 、 Figure 2 and Figure 3 As shown together, a feeding hole 13 is formed at the upper end of the rotating box 12. A plurality of screening holes 14 are formed at the bottom of the inner cavity of the rotating box 12. The pushing plate 26 fits the screening holes 14. The agglomerated granular material is filtered by the screening holes 14, and then the granular material is stirred and dispersed again by the pushing plate 26.

[0037] The driving component 3 includes a motor 39 fixedly connected to the screening box 11. The output end of the motor 39 is fixedly connected with a rotating column 32. A first transmission belt 31 is rotatably connected to the outer wall of the rotating column 32 near the bottom. The other end of the first transmission belt 31 is rotatably connected with a first connecting column 36 inside. The bottom end of the first connecting column 36 is fixedly connected with a second driving gear 34. The motor 39 drives the second driving gear 34 to rotate.

[0038] The second driving gear 34 is vertically meshed and rotatably connected with a rotating gear 35 at the bottom. A second transmission belt 37 is rotatably connected to the outer wall of the rotating gear 35. The other end of the second transmission belt 37 is rotatably connected with a second connecting column 38 inside. The inner end of the second connecting column 38 is fixedly connected with the rotating column 21. The motor 39 drives the rotating column 21 to rotate.

[0039] A transverse groove 15 is provided at the same side of the screening box 11 as the motor 39. A filter plate 4 is fixedly connected inside the transverse groove 15. A vibration groove 41 is provided at the bottom near the center on the outer side of the filter plate 4. A vibration blade 33 is fixedly connected to the outer wall of the rotating column 32 near the upper edge. The vibration blade 33 rotates inside the vibration groove 41. By rotating the motor 39, the rotating column 32 is driven to rotate. While rotating, the vibration blade 33 at the top is driven to rotate inside the vibration groove 41 inside the filter plate 4, continuously vibrating the filter plate 4, preventing particles from accumulating and blocking pores on the surface of the filter plate 4, and improving the screening rate.

[0040] During use, by rotating the motor 39, the first transmission belt 31 is driven to rotate. While rotating, the second driving gear 34 drives the rotating gear 35, and the rotating gear 35 drives the second transmission belt 37 to operate, causing the dispersing member 2 to rotate. While rotating, the connecting rod 22 inside the rotating column 21 drives the first driving gear 23 to rotate, causing the dispersing blade 243 to rotate inside the rotating groove 27 inside the heating plate 25. While drying the polypropylene pellets, the agglomerated pellets are broken up, ensuring that the pellets are heated more evenly. At the same time, by rotating the motor 39, the rotating column 32 is driven to rotate. While rotating, the vibration blade 33 at the top is driven to rotate inside the vibration groove 41 inside the filter plate 4, continuously vibrating the filter plate 4.

[0041] It should be understood that the use of these embodiments is only for illustrating the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A polypropylene pellet drying and screening device, comprising a bottom plate (1), characterized in that: A screening box (11) is fixedly connected to the upper surface of the bottom plate (1) near the center. A driving component (3) is fixedly connected to one side of the outer wall of the screening box (11) near the bottom. A rotating box (12) is fixedly connected to the inner wall of the screening box (11) near the upper edge. A stirring and dispersing component (2) is rotatably connected to the side of the inner cavity of the rotating box (12). The stirring and dispersing component (2) includes a rotating column (21) rotatably connected to the rotating box (12). A plurality of heating plates (25) are fixedly connected to the outer wall of the rotating column (21). A pushing plate (26) is vertically fixedly connected to the other end of the heating plate (25). A rotating groove (27) is opened near the center at the lower end of the heating plate (25). A connecting rod (22) is rotatably connected to the inside of the rotating column (21). A first driving gear (23) is fixedly connected to the other end of the connecting rod (22). A rotating component (24) is meshed and rotatably connected to the outer wall of the first driving gear (23).

2. The polypropylene pellet drying and screening device according to claim 1, characterized in that: The rotating component (24) includes a bevel gear (241) rotatably connected to the first driving gear (23). A fixing column (242) is fixedly connected to the end of the bevel gear (241). The fixing column (242) penetrates through the rotating column (21) and is fixedly connected to a rotating rod (246). A plurality of rotating rings (244) are rotatably connected to the outer wall of the rotating rod (246). A dispersing blade (2) is fixedly connected to one side of the rotating ring (244). A fixed end (245) is fixedly connected to the top of the rotating rod (246).

3. The polypropylene pellet drying and screening device according to claim 2, wherein: A feeding hole (13) is opened at the upper end of the rotating box (12). A plurality of screening holes (14) are opened at the bottom of the inner cavity of the rotating box (12). The pushing plate (26) fits against the screening holes (14).

4. The polypropylene pellet drying and screening device according to claim 1, wherein: The driving component (3) includes a motor (39) fixedly connected to the screening box (11). A rotating column (32) is fixedly connected to the output end of the motor (39). A first transmission belt (31) is rotatably connected to the outer wall of the rotating column (32) near the bottom. A first connecting column (36) is rotatably connected to the inside of the other end of the first transmission belt (31). A second driving gear (34) is fixedly connected to the bottom end of the first connecting column (36).

5. The polypropylene pellet drying and screening device according to claim 4, characterized in that: A rotating gear (35) is vertically meshed and rotatably connected to the bottom of the second driving gear (34). A second transmission belt (37) is rotatably connected to the other wall of the rotating gear (35). A second connecting column (38) is rotatably connected to the inside of the other end of the second transmission belt (37). The inner end of the second connecting column (38) is fixedly connected to the rotating column (21).

6. The polypropylene pellet drying and screening device according to claim 5, wherein: A horizontal groove (15) is opened at the same side of the screening box (11) as the motor (39). A filter plate (4) is fixedly connected to the inside of the horizontal groove (15). A vibrating groove (41) is opened near the center at the outer bottom of the filter plate (4). A vibrating blade (33) is fixedly connected to the outer wall of the rotating column (32) near the upper edge. The vibrating blade (33) rotates inside the vibrating groove (41).

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