A plastic particle dryer

Abstract

The utility model relates to the field of plastic particle processing, concretely is a kind of plastic particle drying machine, including the screen for dispersing material and the crushing mechanism for solving material caking, the screen is installed in the discharge position of the feeding mechanism, the crushing mechanism is installed in the sealing mechanism inside and is located the screen tail portion. Through the gap between fixed frame and rotary frame, the caking after being filtered through screen will roll down to the extrusion groove upside, the caking is rubbed and extruded between the rotary rotary frame and fixed fixed frame, to break the caking, and then eliminate the influence of caking, improve the efficiency of plastic particle drying.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle processing, and in particular to a plastic particle dryer. Background Technology

[0002] Plastic particle dryers are industrial equipment specifically designed to remove moisture or volatiles from plastic particles. They typically use methods such as hot air circulation, vacuum heating, or infrared radiation to heat the plastic particles in a controlled temperature and airflow environment, causing the moisture inside and on the surface of the particles to evaporate and be discharged. This reduces the moisture content of the particles to within the range required by the production process, ensuring the stability of subsequent injection molding, extrusion, and other processing and product quality.

[0003] In the prior art, compared with the Chinese utility model with announcement number CN212636247U, a rapid dryer for the production of PVC plastic particles is disclosed. It improves the drying effect by increasing internal stirring and using external hot air circulation. However, in actual use, it was found that because there is interaction and stickiness between water-containing plastic particles, they are prone to clumping after initial drying. If it is not dealt with in time, the heat accumulation will cause the internal temperature of the plastic particles to accumulate, resulting in the particles melting and affecting the particle processing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a plastic particle dryer in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A plastic particle dryer includes a sealing mechanism for providing a drying environment and a feeding mechanism for lifting and dispersing processed materials. A power mechanism is installed at the upper end of the sealing mechanism, and the feeding mechanism is vertically installed at the center inside the sealing mechanism. The top of the feeding mechanism is connected to the power mechanism. The dryer also includes a screen for dispersing materials and a crushing mechanism for preventing material agglomeration. The screen is installed at the discharge position of the feeding mechanism, and the crushing mechanism is installed inside the sealing mechanism and located at the tail of the screen.

[0007] The crushing mechanism includes a fixed frame and a rotating frame. The fixed frame is vertically slidably connected to the inner wall of the sealing cylinder of the sealing mechanism via a spline. The outer surface of the fixed frame engages with the sealing cylinder via an elastic component. The rotating frame is located below the fixed frame, and its outer surface is rotatably connected to the sealing mechanism. The rotating frame has an L-shaped cross-section, and a central air inlet groove is provided between the fixed frame and the rotating frame. An air source pipe is provided on the outside of the sealing cylinder corresponding to the positions of the fixed frame and the rotating frame. An air inlet hole is provided on the sealing cylinder corresponding to the air source pipe. An annular discharge groove is provided at the bend of the rotating frame. A through hole is provided at the bottom of the discharge groove, connecting to the internal space of the sealing cylinder. An extrusion groove for crushing and breaking up agglomerates is provided on the upper side of the discharge groove. An intermittent air inlet component is provided on the outer side of the bottom of the rotating frame.

[0008] Preferably, the fixed frame and the rotating frame have inclined surfaces on their corresponding sides, and broken blocks are formed on the corresponding inclined surfaces.

[0009] Preferably, the intermittent air intake assembly includes power blades and air intake holes. An annular groove is formed on the outer side of the bottom of the rotating frame. Several power blades are arranged in a circumferential array in the annular groove. There are N gaps between the power blades. The air intake holes are spaced apart in the gaps between the power blades and the air intake holes pass through the rotating frame and communicate with the discharge chute.

[0010] Preferably, the elastic component on the fixing frame includes an elastic sheet and a support ring, the support ring is fixed to the sealing cylinder, the elastic sheet is disposed on the upper end of the support ring, and the fixing frame is formed with a groove for receiving the elastic sheet and the support ring.

[0011] Preferably, the distance the fixing bracket slides on the sealing cylinder is equal to the height of the central air inlet groove.

[0012] Preferably, the sealing mechanism further includes a feeding funnel, a feeding hole, a feeding pipe, and a discharge port. The feeding pipe is vertically connected to the axial position inside the sealing cylinder. A discharge port is provided at the top of the feeding pipe, and a feeding hole is provided at the bottom of the feeding pipe. A feeding funnel is installed outside the feeding hole at the bottom of the sealing cylinder.

[0013] Preferably, the feeding mechanism includes a power rod, which is vertically arranged inside the feeding pipe. A spiral feeding blade is provided between the power rod and the feeding pipe, and the top of the spiral feeding blade is connected to the power output end of the power mechanism.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Through the gap between the fixed frame and the rotating frame, the clumps filtered by the screen will roll down to the upper side of the extrusion tank. The rotating frame and the fixed frame will rub and squeeze the clumps, thereby breaking them down and eliminating their impact, thus improving the drying efficiency of plastic particles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a plastic particle dryer according to the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of a plastic particle dryer according to the present invention;

[0019] Figure 3 This is a front view of the internal structure of a plastic particle dryer according to the present invention;

[0020] Figure 4 This is a schematic diagram of the crushing mechanism of a plastic particle dryer according to the present invention;

[0021] Figure 5 This is an exploded structural diagram of the crushing mechanism of the plastic particle dryer described in this utility model;

[0022] Figure 6 This is a cross-sectional view of the rotating frame of the plastic particle dryer described in this utility model;

[0023] Figure 7 This is a partial cross-sectional schematic diagram of the rotating frame of the plastic particle dryer described in this utility model;

[0024] Figure 8 This is a front view of the rotating frame cross-section of the plastic particle dryer described in this utility model.

[0025] The annotations in the attached figures are explained as follows:

[0026] 1. Sealing mechanism; 2. Power mechanism; 3. Feeding mechanism; 4. Screen; 5. Crushing mechanism; 6. Air supply pipe; 11. Sealing cylinder; 12. Feeding funnel; 13. Feeding hole; 14. Feeding pipe; 15. Discharge port; 31. Power rod; 32. Spiral feeding blade; 51. Fixed frame; 52. Rotating frame; 53. Power blade; 54. Air inlet; 55. Crushed piece; 511. Elastic plate; 512. Support ring; 513. Central air inlet groove; 521. Extrusion groove; 522. Discharge groove. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] like Figures 1-8 As shown, a plastic particle dryer includes a sealing mechanism 1 that provides a drying environment and a feeding mechanism 3 for lifting and dispersing processed materials. A power mechanism 2 is installed at the upper end of the sealing mechanism 1, and the feeding mechanism 3 is vertically installed at the center inside the sealing mechanism 1. The top of the feeding mechanism 3 is connected to the power mechanism 2. It also includes a screen 4 for dispersing materials and a crushing mechanism 5 for solving material agglomeration. The screen 4 is installed at the discharge position of the feeding mechanism 3, and the crushing mechanism 5 is installed inside the sealing mechanism 1 and located at the tail of the screen 4.

[0031] The crushing mechanism 5 includes a fixed frame 51 and a rotating frame 52. The fixed frame 51 is vertically slidably connected to the inner wall of the sealing cylinder 11 of the sealing mechanism 1 via a spline. The outer surface of the fixed frame 51 is fitted with the sealing cylinder 11 via an elastic component. The rotating frame 52 is located below the fixed frame 51 and is rotatably connected to the sealing mechanism 1. The rotating frame 52 has an L-shaped cross-section and a central air inlet groove 513 is provided between the fixed frame 51 and the rotating frame 52. An air source pipe 6 is provided on the outside of the sealing cylinder 11 corresponding to the positions of the fixed frame 51 and the rotating frame 52. An air inlet hole is provided on the sealing cylinder 11 corresponding to the air source pipe 6. An annular discharge trough 522 is provided at the bend of the rotating frame 52. A through hole is provided at the bottom of the discharge trough 522 to connect with the internal space of the sealing cylinder 11. An extrusion groove 521 for crushing and breaking agglomerates is provided on the upper side of the discharge trough 522. An intermittent air inlet component is provided on the outer side of the bottom of the rotating frame 52.

[0032] In this embodiment, the fixed frame 51 and the rotating frame 52 are both formed with inclined surfaces on their corresponding sides, and broken blocks 55 are formed on the corresponding inclined surfaces. The inclined surfaces are used to accumulate agglomerated plastic particles, thereby agglomerating the agglomerated particles.

[0033] In this embodiment, the intermittent air intake assembly includes power blades 53 and air intake holes 54. An annular groove is formed on the outer side of the bottom of the rotating frame 52. Several power blades 53 are arranged in a circular array inside the annular groove. There are N gaps between the power blades 53. The air intake holes 54 are spaced out in the gaps between the power blades 53 and are interconnected through the rotating frame 52 and the discharge trough 522. The drying air entering from the air source pipe 6 is blown by the power blades 53 to rotate the rotating frame 52, thereby causing the rotating frame 52 to process the agglomerates. The air is intermittently blown into the discharge trough 522 through the air intake holes 54, thereby drying the crushed plastic particles. Most of the drying air is provided to the sealed cylinder 11 from the central air intake groove 513 and the bottom of the rotating frame 52, ensuring the drying efficiency of most of the plastic particles.

[0034] In this embodiment, the elastic components on the fixed frame 51 include an elastic sheet 511 and a support ring 512. The support ring 512 is fixedly connected to the sealing cylinder 11. The elastic sheet 511 is disposed on the upper end of the support ring 512. The fixed frame 51 is formed with a groove for receiving the elastic sheet 511 and the support ring 512. The fixed frame 51 has an elasticity that allows it to float up and down, thereby ensuring the range of interaction when cooperating with the rotating frame 52 and improving the breaking effect on agglomerates.

[0035] In this embodiment, the distance that the fixing bracket 51 slides on the sealing cylinder 11 is the height of the central air inlet groove 513.

[0036] In this embodiment, the sealing mechanism 1 further includes a feeding funnel 12, a feeding hole 13, a feeding pipe 14, and a discharge port 15. The feeding pipe 14 is vertically connected to the axial position inside the sealing cylinder 11. The top of the feeding pipe 14 is provided with a discharge port 15, and the bottom of the feeding pipe 14 is provided with a feeding hole 13. The feeding funnel 12 is installed on the outside of the feeding hole 13 at the bottom of the sealing cylinder 11.

[0037] In this embodiment, the feeding mechanism 3 includes a power rod 31, which is vertically arranged inside the feeding pipe 14. A spiral feeding blade 32 is arranged between the power rod 31 and the feeding pipe 14, and the top of the spiral feeding blade 32 is connected to the power output end of the power mechanism 2.

[0038] Working principle: When the power mechanism 2 is started, the motor of the power mechanism 2 drives the power rod 31 and the spiral feeding blade 32 to rotate through the reducer. The rotating spiral feeding blade 32 transports the particles that need to be dried inside the feed funnel 12 upward and flows out from the discharge port 15.

[0039] At this time, the particles will first roll on the feeding pipe 14. Unclumped particles will fall through the gaps in the screen 4, increasing the dispersion of the particles. Clumped particles will roll through the screen 4 between the fixed frame 51 and the rotating frame 52. At the same time, the air source pipe 6 blows external drying hot air into the sealed cylinder 11. The drying air flows through the central air inlet groove 513, the discharge groove 522, and the bottom of the rotating frame 52 to dry the dispersed particles.

[0040] When clumps accumulate on the upper side of the extrusion trough 521, the crushed blocks 55 on the fixed frame 51 and the rotating frame 52 are crushed by the rotating frame 52. The crushed particles are then dried by the hot air inside the central air inlet trough 513 and the discharge trough 522 to ensure the drying effect. When there are many clumps, the fixed frame 51 is pressed down and the central air inlet trough 513 is closed. Most of the drying gas impacts the power blades 53, thereby increasing the rotation speed of the rotating frame 52 and further improving the crushing effect.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A plastic particle dryer, comprising a sealing mechanism (1) providing a drying environment and a feeding mechanism (3) for lifting and diffusing processed materials, wherein a power mechanism (2) is mounted on the upper end of the sealing mechanism (1), the feeding mechanism (3) is vertically installed at the center of the interior of the sealing mechanism (1), and the power mechanism (2) is connected to the top of the feeding mechanism (3), characterized in that: It also includes a screen (4) for dispersing materials and a crushing mechanism (5) for resolving material agglomeration. The screen (4) is installed at the discharge position of the feeding mechanism (3), and the crushing mechanism (5) is installed inside the sealing mechanism (1) and located at the tail of the screen (4). The crushing mechanism (5) includes a fixed frame (51) and a rotating frame (52). The fixed frame (51) is vertically slidably connected to the inner wall of the sealing cylinder (11) of the sealing mechanism (1) via a spline. The outer surface of the fixed frame (51) is fitted to the sealing cylinder (11) via an elastic component. The rotating frame (52) is located below the fixed frame (51). The outer surface of the rotating frame (52) is rotatably connected to the sealing mechanism (1). The rotating frame (52) has an L-shaped cross-section, and a central air inlet groove is provided between the fixed frame (51) and bent. (513) An air source pipe (6) is provided on the outside of the sealing cylinder (11) corresponding to the fixed frame (51) and the rotating frame (52). An air inlet is provided on the sealing cylinder (11) corresponding to the air source pipe (6). An annular discharge groove (522) is provided at the bend of the rotating frame (52). A through hole is provided at the bottom of the discharge groove (522) to connect with the internal space of the sealing cylinder (11). An extrusion groove (521) for crushing and breaking agglomerates is provided on the upper side of the discharge groove (522). An intermittent air intake assembly is provided on the outer side of the bottom of the rotating frame (52).

2. The plastic particle dryer according to claim 1, characterized in that: The fixed frame (51) and the rotating frame (52) have inclined surfaces formed on their corresponding sides, and broken blocks (55) are formed on the corresponding inclined surfaces.

3. A plastic particle dryer according to claim 2, characterized in that: The intermittent air intake assembly includes power blades (53) and air intake holes (54). The bottom outer side of the rotating frame (52) is formed with an annular groove. Several power blades (53) are arranged in a circular array in the annular groove. There are N gaps between the power blades (53). The air intake holes (54) are spaced apart in the gaps between the power blades (53), and the air intake holes (54) penetrate the rotating frame (52) and communicate with the discharge trough (522).

4. A plastic particle dryer according to claim 3, characterized in that: The elastic components on the fixing frame (51) include an elastic sheet (511) and a support ring (512). The support ring (512) is fixed to the sealing cylinder (11). The elastic sheet (511) is disposed on the upper end of the support ring (512). The fixing frame (51) has a groove formed on it to receive the elastic sheet (511) and the support ring (512).

5. A plastic particle dryer according to claim 1, characterized in that: The distance by which the fixing bracket (51) slides on the sealing cylinder (11) is the height of the central air inlet groove (513).

6. A plastic particle dryer according to claim 1, characterized in that: The sealing mechanism (1) further includes a feeding funnel (12), a feeding hole (13), a feeding pipe (14), and a discharge port (15). The feeding pipe (14) is vertically connected to the axial position inside the sealing cylinder (11). The top of the feeding pipe (14) is provided with a discharge port (15), and the bottom of the feeding pipe (14) is provided with a feeding hole (13). The feeding funnel (12) is installed on the outside of the feeding hole (13) at the bottom of the sealing cylinder (11).

7. A plastic particle dryer according to claim 6, characterized in that: The feeding mechanism (3) includes a power rod (31), which is vertically arranged inside the feeding pipe (14). A spiral feeding blade (32) is provided between the power rod (31) and the feeding pipe (14), and the top of the spiral feeding blade (32) is connected to the power output end of the power mechanism (2).

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