A uniform heating drying device for hard refractory recycled plastic particles

Abstract

The utility model relates to the field of refractory plastic production discloses a kind of uniform heating drying device for hard refractory recycled plastic particles, including bottom plate, the top end of the bottom plate is fixedly connected with shell, the inner wall of shell top end is provided with scattering mechanism, the output shaft of motor is fixedly connected with belt pulley a, the rotating center shaft of belt pulley a is fixedly connected with rotating shaft, the surface of rotating shaft bottom end is fixedly connected with auger, the bottom end of rotating shaft outer wall is fixedly connected with three groups of bottom scrapers. In the utility model, the synergistic effect of auger and bottom scraper realizes the spiral conveying and bottom shoveling of particles, avoids accumulation dead angle;Connecting frame drives arc plate reciprocating motion up and down, cooperates the transmission structure of annular corrugated groove, carries out three-dimensional scattering to particle, ensures that every particle can fully contact heating component, solves the problem of uneven heating of traditional device, greatly improves drying quality stability.

Description

Technical Field

[0001] This utility model relates to the field of refractory plastic production, and in particular to a uniform heating and drying device for rigid refractory recycled plastic granules. Background Technology

[0002] "Rigid refractory recycled plastic granules" are plastic granules that combine rigidity, fire resistance (flame retardancy), and recyclability. They belong to the category of environmentally friendly modified plastic materials and are mainly used in the production of various products requiring high hardness and fire resistance. In the production and processing of rigid refractory recycled plastic granules, drying is a crucial step in ensuring granule performance, effectively keeping the granules in a dry state. However, traditional drying equipment often uses static stacking heating methods, resulting in high granule density and difficulty for hot air to penetrate deep into the granules. This leads to uneven heating, with some granules not drying completely while others deteriorate due to overheating, severely affecting product quality stability and failing to meet the production requirements of high-purity recycled plastics. Therefore, a uniform heating and drying device for rigid refractory recycled plastic granules is proposed to solve these problems. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a uniform heating and drying device for rigid refractory recycled plastic granules, which aims to improve the problem that traditional drying devices in the prior art mostly adopt static stacking heating methods, resulting in high granule density and difficulty for hot air to penetrate deep granules, leading to uneven heating of granules and incomplete drying of some granules.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a uniform heating and drying device for rigid refractory recycled plastic granules, comprising a base plate, a shell fixedly connected to the top of the base plate, and a dispersing mechanism provided on the inner wall of the top of the shell. The dispersing mechanism includes a motor, the output shaft of which is fixedly connected to a pulley a, the rotation center axis of which is fixedly connected to a rotating shaft, an auger fixedly connected to the bottom surface of the rotating shaft, three sets of bottom scrapers fixedly connected to the bottom of the outer wall of the rotating shaft, an annular corrugated groove formed on the surface of the rotating shaft, a sliding rod slidably connected to the inner wall of the annular corrugated groove, a connecting frame fixedly connected to the end of the sliding rod away from the rotating shaft, a slider fixedly connected to the rear surface of the connecting frame, three sets of arc-shaped plates fixedly connected to the surface of the connecting frame, and an anti-accumulation material collection component provided on the surface of the bottom plate.

[0005] As a further description of the above technical solution: The anti-accumulation aggregate assembly includes a pulley b, a connecting shaft fixedly connected to the rotation center axis of the pulley b, an eccentric rod fixedly connected to the bottom end of the outer wall of the connecting shaft, a guide frame slidingly contacting the outer side wall of the eccentric rod, a sliding seat fixedly connected to the end of the guide frame away from the eccentric rod, a collection box contacting the inner side wall of the sliding seat, a fixing block fixedly connected to the front surface of the collection box, and an insert rod slidably connected through the inner wall of the fixing block.

[0006] As a further description of the above technical solution: The top of the motor is fixed to the center of the top of the housing by a bracket, and the pulley a is rotatably connected to the center of the top of the housing.

[0007] As a further description of the above technical solution: The rotating shaft is rotatably connected to the center of the inner wall of the housing, and the inner side wall of the housing is provided with a vertical groove. The slider is slidably connected to the inner wall of the vertical groove of the housing.

[0008] As a further description of the above technical solution: The outer sidewall of the connecting frame is in contact with the inner sidewall of the housing, and the bottom end of the outer wall of the bottom scraper is in contact with the bottom end of the outer wall of the housing.

[0009] As a further description of the above technical solution: The outer sidewall of the housing is provided with a protrusion, and the connecting shaft passes through and is rotatably connected to the inner wall of the protrusion of the housing.

[0010] As a further description of the above technical solution: The sliding seat is slidably connected to the surface of the top of the base plate, and the pulley b is connected to the pulley a via a belt.

[0011] As a further description of the above technical solution: The surface of the front end of the sliding seat is provided with an insertion hole, and the bottom end of the outer wall of the insertion rod is inserted into the inner wall of the insertion hole.

[0012] This utility model has the following beneficial effects: 1. In this invention, the synergistic action of the auger and the bottom scraper enables spiral conveying and bottom scooping of the particles, avoiding accumulation dead corners. The connecting frame drives the arc-shaped plate to reciprocate up and down, and in conjunction with the transmission structure of the annular corrugated groove, it three-dimensionally disperses the particles, ensuring that each particle can fully contact the heating components, solving the problem of uneven heating in traditional devices and significantly improving the stability of drying quality. 2. In this invention, the eccentric rod-driven sliding seat drives the collection box to reciprocate, allowing the dried particles to fall evenly into the collection box, preventing local accumulation. The quick-fixing structure of the insert rod and fixing block facilitates the disassembly, assembly, and transfer of the collection box, reducing downtime. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a uniform heating and drying device for rigid refractory recycled plastic granules proposed in this utility model.

[0014] Figure 2 This is a schematic diagram of the eccentric rod and guide frame of a uniform heating and drying device for rigid refractory recycled plastic granules proposed in this utility model, in the separated state.

[0015] Figure 3 This is a partial cross-sectional view of the shell of a uniform heating and drying device for rigid refractory recycled plastic granules proposed in this utility model.

[0016] Figure 4 This is a schematic diagram of the sliding rod and rotating shaft of a uniform heating and drying device for rigid refractory recycled plastic granules proposed in this utility model, in the separated state.

[0017] Figure 5 This is a schematic diagram of the structure of the collection box and sliding seat in the separated state of a uniform heating and drying device for rigid refractory recycled plastic granules proposed in this utility model.

[0018] Legend: 1. Base plate; 2. Shell; 3. Dispersing mechanism; 31. Motor; 32. Belt pulley a; 33. Rotating shaft; 34. Screwdriver; 35. Bottom scraper; 36. Sliding rod; 37. Connecting frame; 38. Arc plate; 39. Sliding block; 4. Anti-accumulation material collection assembly; 41. Belt pulley b; 42. Connecting shaft; 43. Eccentric rod; 44. Guide frame; 45. Sliding seat; 46. Collection box; 47. Fixing block; 48. Insert rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-3This utility model provides an embodiment of a uniform heating and drying device for rigid refractory recycled plastic granules, including a base plate 1, a shell 2 fixedly connected to the top of the base plate 1, the base plate 1 can support the shell 2, the top of the shell 2 is provided with a feed port, and the bottom is provided with a discharge valve, so that the rigid refractory recycled plastic granules can enter from the feed port at the top of the shell 2 and be discharged from the discharge port at the bottom. The shell 2 is provided with a heating component, which is the prior art, and the inner wall at the top of the shell 2 is provided with a dispersing mechanism 3.

[0021] Reference Figures 2-4 The dispersing mechanism 3 includes a motor 31. The output shaft of the motor 31 is fixedly connected to a pulley a32. The top of the motor 31 is fixed to the center of the top of the housing 2 by a bracket. The bracket is provided on the outside of the motor 31 to support the motor 31 and prevent it from rotating on its own. The pulley a32 is rotatably connected to the center of the top of the housing 2. The rotation center axis of the pulley a32 is fixedly connected to a rotating shaft 33. The rotating shaft 33 is rotatably connected to the center of the inner wall of the housing 2. When the pulley a32 is driven to rotate by the motor 31, it will also drive the rotating shaft 33 to rotate synchronously. The bottom surface of the rotating shaft 33 is fixedly connected to an auger 34. By setting the auger 34, the hard refractory recycled plastic granules to be dried inside can be spirally fed upward to avoid accumulation at the bottom, which would result in poor overall drying.

[0022] Reference Figure 3 and Figure 4Three sets of bottom scrapers 35 are fixedly connected to the bottom end of the outer wall of the rotating shaft 33. By providing the bottom scrapers 35 with inclined surfaces, the rotating shaft 33 drives the bottom scrapers 35 to rotate, scooping up the hard, refractory recycled plastic granules accumulated at the bottom, which are then transported upwards by the auger 34. The bottom end of the outer wall of the bottom scrapers 35 contacts the bottom end of the outer wall of the housing 2. An annular corrugated groove is formed on the surface of the rotating shaft 33. A sliding rod 36 is slidably connected to the inner wall of the annular corrugated groove of the rotating shaft 33. When the rotating shaft 33 rotates, it drives the sliding rod 36 to slide along the inner wall of its annular corrugated groove, thereby causing the connecting frame 37 to move linearly up and down on the inner wall of the base plate 1. The end of the sliding rod 36 away from the rotating shaft 33 is fixedly connected to the connecting frame 37. The outer sidewall of 7 contacts the inner sidewall of the housing 2. A slider 39 is fixedly connected to the rear surface of the connecting frame 37. By setting the slider 39, the up and down movement of the auger 34 can be guided so that it can only move up and down in a straight line and will not rotate synchronously with the rotating shaft 33. The rotating shaft 33 is rotatably connected to the center of the inner wall of the housing 2. A vertical groove is opened on the inner sidewall of the housing 2. The slider 39 is slidably connected to the inner wall of the vertical groove of the housing 2. Three sets of arc plates 38 are fixedly connected to the surface of the connecting frame 37. The arc plates 38 are quarter rings and their surfaces are provided with slopes so that when the arc plates 38 move up and down with the connecting frame 37, they will also lift the hard refractory recycled plastic particles inside up and down. The surface of the bottom plate 1 is provided with an anti-accumulation material collection component 4.

[0023] Reference Figure 2The anti-accumulation aggregate assembly 4 includes a pulley b41, which is connected to pulley a32 via a belt. A connecting shaft 42 is fixedly connected to the rotation center axis of pulley b41. When pulley a32 rotates under the drive of motor 31, it drives pulley b41 to rotate synchronously. A protrusion is provided on the outer sidewall of housing 2. The connecting shaft 42 passes through and is rotatably connected to the inner wall of the protrusion on housing 2. The protrusion on the outer side of housing 2 provides rotational support for the connecting shaft 42 and pulley b41. An eccentric rod 43 is fixedly connected to the bottom end of the outer wall of the connecting shaft 42. The rotation center point of the connecting shaft 42 and the eccentric rod 43 is fixedly connected, so that the protrusion at the bottom end of the eccentric rod 43 rotates around the center when it rotates. A guide frame 44 slides along the outer sidewall of the eccentric rod 43. A groove is provided on the surface of the guide frame 44, allowing the bottom end of the eccentric rod 43 to slide. The protruding rod can only slide on the inner wall of the guide frame 44 groove. The end of the guide frame 44 away from the eccentric rod 43 is fixedly connected to a sliding seat 45. The sliding seat 45 is slidably connected to the top surface of the base plate 1. The sliding seat 45 can only slide back and forth on the surface of the base plate 1. At the same time, when the protruding rod at the bottom of the eccentric rod 43 slides in the groove of the guide frame 44, it will reciprocate to push the sliding seat 45 back and forth on the surface of the base plate 1. The inner side wall of the sliding seat 45 contacts the collection box 46. The front surface of the collection box 46 is fixedly connected to a fixing block 47. The inner wall of the fixing block 47 is slidably connected to an insert rod 48. The front surface of the sliding seat 45 has an insertion hole. The bottom end of the outer wall of the insert rod 48 is inserted into the inner wall of the insertion hole. By setting the collection box 46, hard refractory recycled plastic particles can be collected. And by inserting the insert rod 48 into the insertion hole of the sliding seat 45, the position of the collection box 46 can be fixed.

[0024] Working principle: Hard refractory recycled plastic granules enter the device through the feed port at the top of the shell 2. The heating component inside the shell 2 heats and dries the granules. During this process, the dispersing mechanism 3 plays a key role. The motor 31 is fixed to the center of the top of the shell 2 by the bracket. Its output shaft drives the pulley a32 to rotate, which in turn drives the rotating shaft 33 to rotate synchronously. The auger 34 at the bottom of the rotating shaft 33 spirally conveys the plastic granules to be dried upwards, effectively preventing the granules from accumulating at the bottom and improving the overall drying effect. At the same time, the bottom scraper 35 at the bottom of the outer wall of the rotating shaft 33 has a sloping surface design that allows it to scoop up the granules accumulated at the bottom during rotation and send them back into the conveying path of the auger 34, further ensuring that the granules are heated evenly.

[0025] In addition, the annular corrugated groove on the surface of the rotating shaft 33 cooperates with the sliding rod 36. When the rotating shaft 33 rotates, it drives the sliding rod 36 to slide on the inner wall of the annular corrugated groove, thereby causing the connecting frame 37 to move linearly up and down on the inner wall of the base plate 1. The slider 39 on the connecting frame 37 cooperates with the vertical groove on the inner side of the housing 2 to ensure that the connecting frame 37 only makes linear motion and will not rotate with the rotating shaft 33. During the up and down movement, the arc plate 38 on the surface of the connecting frame 37 lifts the internal plastic particles up and down through the inclined surface of its surface, further breaking up the particles so that they can fully contact the hot air during the heating process and achieve uniform drying.

[0026] When pulley a32 rotates, it drives pulley b41 to rotate synchronously via the belt. The rotation center shaft of pulley b41, connected to shaft 42, passes through the protrusion on the outside of housing 2 and rotates, providing rotational support for pulley b41 and connecting shaft 42. The eccentric rod 43 at the bottom of connecting shaft 42 rotates around the center, and its bottom protrusion slides in the groove of guide frame 44, thereby pushing sliding seat 45 to slide back and forth on the surface of base plate 1. The collection box 46, which is in contact with the inner side of sliding seat 45, is used to collect the dried plastic granules. The position of collection box 46 can be fixed by inserting rod 48 into the insertion hole at the front end of sliding seat 45. Under the reciprocating push of sliding seat 45, collection box 46 can collect granules evenly, avoiding granules from accumulating at the bottom of the device, ensuring the continuity and efficiency of the drying process. After drying is completed, the discharge valve at the bottom of housing 2 is opened, and the dried plastic granules fall into collection box 46, completing the entire drying process.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A uniform heating and drying apparatus for rigid refractory recycled plastic granules, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to the shell (2), and the inner wall of the top of the shell (2) is provided with a disintegration mechanism (3). The dispersing mechanism (3) includes a motor (31), the output shaft of the motor (31) is fixedly connected to a pulley a (32), the rotation center shaft of the pulley a (32) is fixedly connected to a rotating shaft (33), the bottom surface of the rotating shaft (33) is fixedly connected to an auger (34), the bottom end of the outer wall of the rotating shaft (33) is fixedly connected to three sets of bottom scrapers (35), the surface of the rotating shaft (33) is provided with an annular corrugated groove, the inner wall of the annular corrugated groove of the rotating shaft (33) is slidably connected to a sliding rod (36), the end of the sliding rod (36) away from the rotating shaft (33) is fixedly connected to a connecting frame (37), the rear end surface of the connecting frame (37) is fixedly connected to a slider (39), the surface of the connecting frame (37) is fixedly connected to three sets of arc plates (38), and the surface of the bottom plate (1) is provided with an anti-accumulation material collection component (4).

2. The uniform heating and drying apparatus for rigid refractory recycled plastic granules according to claim 1, characterized in that: The anti-accumulation aggregate assembly (4) includes a pulley b (41), a connecting shaft (42) is fixedly connected to the rotation center axis of the pulley b (41), an eccentric rod (43) is fixedly connected to the bottom end of the outer wall of the connecting shaft (42), a guide frame (44) is slidably contacted on the outer side wall of the eccentric rod (43), a sliding seat (45) is fixedly connected to the end of the guide frame (44) away from the eccentric rod (43), a collection box (46) is contacted on the inner side wall of the sliding seat (45), a fixing block (47) is fixedly connected to the front surface of the collection box (46), and an insert rod (48) is slidably connected through the inner wall of the fixing block (47).

3. The uniform heating and drying apparatus for rigid refractory recycled plastic granules according to claim 1, characterized in that: The top of the motor (31) is fixed to the center of the top of the housing (2) by a bracket, and the pulley a (32) is rotatably connected to the center of the top of the housing (2).

4. The uniform heating and drying apparatus for rigid refractory recycled plastic granules according to claim 1, characterized in that: The rotating shaft (33) is rotatably connected to the center of the inner wall of the housing (2). The inner side wall of the housing (2) is provided with a vertical groove, and the slider (39) is slidably connected to the inner wall of the vertical groove of the housing (2).

5. The uniform heating and drying apparatus for rigid refractory recycled plastic granules according to claim 1, characterized in that: The outer sidewall of the connecting frame (37) is in contact with the inner sidewall of the housing (2), and the bottom end of the outer wall of the bottom scraper (35) is in contact with the bottom end of the outer wall of the housing (2).

6. The uniform heating and drying apparatus for rigid refractory recycled plastic granules according to claim 2, characterized in that: The outer sidewall of the housing (2) is provided with a protrusion, and the connecting shaft (42) passes through and is rotatably connected to the inner wall of the protrusion of the housing (2).

7. The uniform heating and drying apparatus for rigid refractory recycled plastic granules according to claim 2, characterized in that: The sliding seat (45) is slidably connected to the surface of the top of the base plate (1), and the pulley b (41) is connected to the pulley a (32) via a belt.

8. The uniform heating and drying apparatus for rigid refractory recycled plastic granules according to claim 2, characterized in that: The sliding seat (45) has an insertion hole on its front surface, and the bottom end of the outer wall of the insertion rod (48) is inserted into the inner wall of the insertion hole.

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