A modified plastic particle drying mechanism

Abstract

The utility model relates to a kind of modified plastic particle drying mechanism, including support frame, cylinder, feeding assembly, agitating component, driving assembly, feed piece, hot air component and discharge port.Cylinder is set in support frame, bottom is equipped with conical discharge section, and lifting screw is penetrated cylinder for conveying particle to the inside of cylinder, and agitating palm is driven to turn particle.Driving assembly drives two driven gears to realize lifting and agitating action respectively, and hot air component introduces heated air into cylinder to form drying environment, and the structure of inner and outer cylinder and hot air hole design enhances heat exchange efficiency.The utility model is compact in structure, can effectively improve modified plastic particle drying efficiency and uniformity, and has good practical value.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing equipment technology, and in particular to a modified plastic granule drying mechanism. Background Technology

[0002] With the widespread application of modified plastics in automobiles, home appliances, building materials, and other fields, the requirements for quality control during their production process are constantly increasing. Modified plastics usually contain a certain amount of moisture after granulation. If they are not fully dried before subsequent processing, it can easily lead to a decline in material properties, and defects such as air bubbles and insufficient strength in the molded products. Therefore, the drying process of granules has become an indispensable part of the modified plastics preparation process.

[0003] Currently, most commonly used plastic granule drying equipment employs static heating or blower box heating methods, with some industrial units also equipped with auxiliary structures such as cyclone separators. However, these drying devices suffer from uneven drying, high energy consumption, and severe granule aggregation and adhesion when processing large batches of granules, especially when the granules are highly heat-sensitive or easily absorb moisture. Traditional drying methods struggle to guarantee both drying efficiency and quality.

[0004] Furthermore, in some heating chamber structures, due to a single hot air flow path or insufficient stirring, uneven heat distribution occurs inside the chamber. Particles are prone to localized overheating near the heat source, while areas farther from the heat source are difficult to dry completely, affecting the consistency of the final product. Additionally, some devices experience particle blockage and residue issues during discharge, reducing the equipment's continuous operating capacity and ease of maintenance.

[0005] In view of this, the inventors specifically designed a modified plastic granule drying mechanism, which led to this invention. Utility Model Content

[0006] The purpose of this application is to provide a modified plastic granule drying mechanism that at least solves the problems of uneven drying, low heat energy utilization, and granule agglomeration in the existing plastic granule drying process.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] This application provides a modified plastic granule drying mechanism, characterized in that it includes: a support frame; a cylinder disposed within the support frame, the bottom of the cylinder having a conical discharge section; a feeding assembly including a lifting screw disposed within the cylinder, the upper end of the lifting screw passing through the top of the cylinder and connected to an upper bearing seat, the top of the lifting screw also being provided with a first driven gear; an agitation assembly including an agitation connecting disc disposed on the upper bearing seat, the agitation connecting disc having agitation plates evenly disposed on the agitation connecting disc, the upper part of the lifting screw also being installed with a second driven gear; a drive assembly disposed on the agitation connecting disc, used to drive the first driven gear and the second driven gear to rotate; a feeding component disposed at the bottom of the cylinder, used by the lifting screw to transport granules into the cylinder space; a hot air assembly used to introduce heated air into the interior of the cylinder; and a discharge port disposed at the bottom of the conical discharge section, and provided with an openable discharge valve.

[0009] In a further embodiment, the hot air assembly includes a centrifugal fan mounted on the support frame, a hot air fan fixedly installed on one side of the centrifugal fan, and the centrifugal fan connected to the inside of the cylinder via a pipe.

[0010] In a further embodiment, the drive assembly includes a motor, the output end of which is provided with a first drive gear and a second drive gear, which mesh with the first driven gear and the second driven gear, respectively.

[0011] In a further embodiment, the second drive gear portion has teeth for intermittently rotating to drive the agitator.

[0012] In a further embodiment, the cylinder includes an inner cylinder and an outer cylinder for heat insulation.

[0013] In a further embodiment, the inner cylinder is provided with spiral-shaped hot air holes.

[0014] In a further embodiment, the outer cylinder is formed by two semi-circular side covers connected and fixed together.

[0015] In a further embodiment, the feeding component is a feeding hopper.

[0016] In a further embodiment, the top of the cylinder is covered with a lid.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] By incorporating a lifting screw and agitator inside the cylinder, coupled with a dual driven gear system, the modified plastic granules are continuously lifted and tumbled at multiple angles, ensuring full contact between the granules and hot air within the cylinder space, significantly improving drying uniformity. Simultaneously, hot air is supplied via a combination of a centrifugal fan and a hot air blower through ducts, enhancing thermal energy utilization efficiency. The cylinder employs an inner and outer sleeve structure with spiral hot air vents, further enhancing hot air distribution and insulation performance. The overall structure is simple and functionally clear, solving the problems of uneven drying, high energy consumption, and granule clumping inherent in traditional plastic granule drying mechanisms.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] in:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0023] Figure 3 This is a schematic diagram highlighting the internal structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the overall structure of the cylindrical body of this utility model;

[0025] Figure 5 This is a utility model Figure 1 Enlarged view of a portion of the diagram.

[0026] Label Explanation:

[0027] 1. Supporting framework;

[0028] 2. Cylinder body; 21. Discharge section; 23. Inner cylinder; 24. Outer cylinder; 25. Hot air vent;

[0029] 3. Feeding assembly; 31. Lifting screw; 32. Upper bearing housing; 33. First driven gear;

[0030] 4. Agitator assembly; 41. Agitator connecting disc; 42. Agitator hand; 43. Second driven gear;

[0031] 5. Drive assembly; 51. Motor; 52. First drive gear; 53. Second drive gear;

[0032] 6. Feeding parts;

[0033] 7. Hot air assembly; 71. Centrifugal fan; 72. Hot air blower; 73. Ductwork;

[0034] 8. Discharge port; 81. Valve;

[0035] 9. Bucket lid. Detailed Implementation

[0036] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0037] like Figures 1 to 3 As shown, a modified plastic granule drying mechanism includes a support frame 1, a cylinder 2, a feeding assembly 3, a stirring assembly 4, a driving assembly 5, a feeding component 6, a hot air assembly 7, and a discharge structure. All parts work together to achieve continuous, uniform, and efficient drying of modified plastic granules.

[0038] The support frame 1 is an integral welded structure used to fix and support the cylinder 2 and various functional components, ensuring the stability of the drying mechanism during operation. The cylinder 2 is set inside the support frame 1 and consists of an inner cylinder 23 and an outer cylinder 24. The inner cylinder 23 is used to contain and heat the plastic granules, while the outer cylinder 24 serves as a heat insulation cover, effectively reducing heat loss and improving thermal efficiency. To facilitate disassembly, assembly, cleaning, and maintenance, the outer cylinder 24 can be composed of two semi-circular side covers, which are fixed to the frame by screws.

[0039] The bottom of the cylinder 2 is provided with a conical discharge section 21. After drying, the particles naturally settle into the conical section and are concentrated to the discharge port 8 by gravity. The discharge port 8 is equipped with a sliding or rotary discharge valve 81, which can control the discharge time according to the degree of drying, avoid premature discharge of particles that are not fully dried, and ensure consistent drying effect.

[0040] To achieve granule feeding and dispersion, the feeding assembly 3 includes a vertically arranged lifting screw 31, which is installed on the central axis inside the cylinder 2. Its lower end is located at the bottom of the cylinder 2 and connected to the feed component 6. The feed component 6 is preferably a hopper structure, capable of receiving modified plastic granules conveyed by external feeding equipment. The lifting screw 31 extends along the height of the cylinder 2, and its upper end passes through the top of the cylinder 2 and is connected to an upper bearing seat 32 for stable support and rotational guidance. A first driven gear 33 is provided at the top of the lifting screw 31 for receiving power transmission from the drive assembly 5.

[0041] like Figure 1 and Figure 5As shown, a second driven gear 43 is further mounted on the upper part of the lifting screw 31, which works in conjunction with the agitation assembly 4. The agitation assembly 4 includes an agitation connecting disc 41 fixed to the bottom of the upper bearing seat 32. Multiple agitator pads 42 are evenly arranged on the agitation connecting disc 41. During rotation, these agitator pads 42 can stir, agitate, and disperse the particles inside the cylinder 2, preventing particle agglomeration and improving the contact efficiency between hot air and particles. Since the agitator pads 42 are arranged in the upper part of the cylinder 2, they are located at the active layer of the particle accumulation layer, resulting in a significant agitation effect.

[0042] To drive the two driven gears, the drive assembly 5 is located near the agitation connecting plate 41 at the top of the cylinder 2. It includes a motor 51 and a first driving gear 52 and a second driving gear 53 fixed to the output shaft of the motor 51, which mesh with the first and second driven gears 43 respectively. Preferably, the second driving gear 53 has a partially toothed structure, allowing the agitator 42 to rotate intermittently. This helps save energy and makes the agitation more turbulent, thereby preventing particles from forming dead zones and depositing in the cylinder 2, and improving the overall drying uniformity.

[0043] like Figure 3 and Figure 4 As shown, to achieve hot air heating and drying, the hot air assembly 7 includes a centrifugal fan 71 installed on one side of the support frame 1, whose outlet is sealed to the hot air inlet on the side wall of the cylinder 2 via a pipe 73. A hot air blower 72 is installed on one side of the fan and is responsible for heating the incoming air to ensure sufficient temperature and volume for the hot air entering the cylinder 2. Several spiral hot air holes 25 are provided inside the cylinder 2. These holes 25 are opened along the spiral direction of the inner cylinder 23 of the cylinder 2, forming a spiral hot air channel. This causes the hot air to rotate and rise inside the cylinder 2, making full contact with the particles, which is beneficial for heat transfer and particle agitation, thus improving drying efficiency.

[0044] The lid 9 is located on the top of the cylinder 2, covering the protruding part of the lifting screw 31 and the drive assembly 5, forming a closed structure to prevent heat loss and prevent external dust from entering the interior of the cylinder 2. A sealing ring or silicone gasket is provided at the connection between the lid 9 and the cylinder 2 to enhance the airtightness.

[0045] The working process of this embodiment is as follows: Modified plastic granules are fed into the bottom of the cylinder 2 through the feed hopper. The lifting screw 31 drives the granules upward to the middle space of the cylinder 2. At the same time, the stirring palm 42 intermittently agitates the granules, making them evenly dispersed in the rotational disturbance. The hot air blower 72 works in conjunction with the ventilation fan to introduce high-temperature hot air into the cylinder 2. The hot air rises in a spiral path through the hot air holes 25, forming dynamic convection with the agitated granules to achieve rapid and efficient drying. After drying, the granules fall into the conical section and are discharged through the discharge port 8.

[0046] In summary, this invention, through optimized screw conveying, agitation and turbulence, hot air circulation, and modular structure, not only improves drying efficiency and particle uniformity but also offers good ease of operation and maintenance. It is suitable for the industrial drying needs of various modified plastic granules, especially for small and medium-sized continuous production lines, and has promising industrial application prospects.

[0047] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A modified plastic granule drying mechanism, characterized in that, include: Supporting framework; A cylindrical body is disposed within the supporting frame, and a conical discharge section is provided at the bottom of the cylindrical body; The feeding assembly includes a lifting screw disposed inside the cylinder, the upper end of the lifting screw passing through the top of the cylinder and connected to an upper bearing seat, and a first driven gear disposed at the top of the lifting screw; The agitation assembly includes an agitation connecting plate disposed on the upper bearing seat, agitation palms being evenly disposed on the agitation connecting plate, and a second driven gear being installed on the upper part of the lifting screw; A drive assembly, disposed on the agitator connecting disc, is used to drive the first driven gear and the second driven gear to rotate; A feed unit is located at the bottom of the cylinder, and the lifting screw transports the particles into the cylinder space; A hot air assembly is used to introduce heated air into the interior of the cylinder; The discharge port is located at the bottom of the conical discharge section and is equipped with an openable discharge valve.

2. The modified plastic granule drying mechanism according to claim 1, characterized in that, The hot air assembly includes a centrifugal fan mounted on the support frame, a hot air fan fixedly installed on one side of the centrifugal fan, and the centrifugal fan connected to the inside of the cylinder via a pipe.

3. The modified plastic granule drying mechanism according to claim 1, characterized in that, The drive assembly includes a motor, and the output end of the motor is provided with a first driving gear and a second driving gear, which mesh with the first driven gear and the second driven gear respectively.

4. The modified plastic granule drying mechanism according to claim 3, characterized in that, The second drive gear portion has teeth for intermittently rotating to drive the agitator.

5. The modified plastic granule drying mechanism according to claim 1, characterized in that, The cylinder includes an inner cylinder and an outer cylinder for heat insulation.

6. The modified plastic granule drying mechanism according to claim 5, characterized in that, The inner cylinder has spiral-shaped hot air holes running through it.

7. A modified plastic granule drying mechanism according to claim 6, characterized in that, The outer cylinder is fixed by two semi-circular side covers.

8. The modified plastic granule drying mechanism according to claim 1, characterized in that, The feeding component is a feeding hopper.

9. A modified plastic granule drying mechanism according to claim 7, characterized in that, The top of the cylinder is covered with a lid.

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