A plastic particle wind force drying device

Abstract

The utility model discloses a kind of plastic particle wind drying device, including drying oven, circulating fan and air-drying stirring bucket assembly, the air-drying stirring bucket assembly is fixedly installed in drying oven, drying oven top surface is equipped with electric heating box, the air inlet of circulating fan is communicated with the inner chamber of electric heating box, the air outlet is connected to the drainage volute of air-drying stirring bucket assembly, the drainage volute inside is equipped with spiral air passage, for guiding hot airflow and driving internal spiral stirring blade rotation, to stir and advance plastic particle. Stirring bucket one end is equipped with feed hopper, other end is connected to material collecting hopper, stirring bucket is arranged along axial inclination, bottom is equipped with overflow tank to discharge water liquid. Electric heating box inside is equipped with electric heating assembly and grid net group, for improving airflow heating efficiency and uniformity. The utility model has the advantages of high drying efficiency, material advancing smoothly, compact structure, suitable for continuous operation, suitable for the rapid drying treatment of plastic particle.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a wind-powered drying device for plastic particles. Background Technology

[0002] Plastic particles, as thermoplastic materials, are widely used in industrial production, and their drying process typically provides a prerequisite for subsequent processing such as injection molding and extrusion. Currently, most commonly used plastic particle drying equipment employs hot air drying towers or hot air circulation boxes, primarily achieving moisture evaporation through forced contact between hot air and the material. However, traditional hot air drying devices generally suffer from the following technical shortcomings: In common device structures, the hot air path is fixed and the airflow direction is unidirectional. The plastic particles are in a static accumulation state, resulting in poor hot air penetration. The moisture trapped between the particles is difficult to be discharged quickly, resulting in long drying time, low efficiency, and problems such as local overheating or uneven drying.

[0003] Furthermore, although some drying equipment is equipped with a stirring mechanism, its stirring and airflow are often independent and fail to form an effective coupling. This makes it impossible to synchronously complete the airflow drive and material tumbling, resulting in low stirring efficiency and high energy consumption. In addition, most existing stirring blades are straight blades or paddle blade structures, which have weak material pushing capacity and cannot effectively realize the automatic propulsion of materials, requiring manual intervention and hindering continuous operation.

[0004] Therefore, existing technologies still have considerable room for improvement in areas such as enhancing the drying efficiency of plastic particles, achieving dynamic and uniform mixing of materials with hot air drying, automatic feeding, and drainage treatment. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is: a plastic particle wind-powered drying device, which achieves rapid drying, uniform stirring, efficient propulsion and timely discharge of water through structural optimization and airflow coupling design, and has good industrial application performance.

[0007] The plastic particle air-powered drying device includes a drying chamber, a circulating fan, and an air-drying agitator assembly installed inside the drying chamber, forming a closed hot air circulating drying system. An electric heating box is fixed to the top of the drying chamber, and an electric heating component is installed inside the electric heating box to heat the airflow before sending it into the agitator assembly to complete the drying process of the plastic particles.

[0008] In a preferred embodiment, the circulating fan's inlet port is connected to the inner cavity of the electric heating box, enabling it to draw in heated air and deliver it to the stirring area. The circulating fan's outlet is connected to a guide volute, which is fixed to the outside of the stirring drum and has an air passage structure arranged in a spiral direction. The spiral airflow drives the spiral blades to rotate inside the drum. Specifically, the spiral airflow forms a torsional flow as it passes through the volute, thereby driving the blades to rotate. This not only promotes material agitation but also improves the contact between the airflow and particles, maximizing thermal energy utilization.

[0009] In a preferred embodiment, the drying chamber is further configured with a detachable collection hopper at the bottom, facilitating the unified collection and processing of plastic particles after the drying process. The collection hopper can also be quickly replaced or cleaned as needed. Specifically, this structural design improves the ease of cleaning and flexibility of use of the equipment.

[0010] In a preferred embodiment, the drying agitator assembly is further configured as follows: the agitator includes an agitator drum, a flow-guiding volute, and spiral blades. The spiral blades are disposed inside the agitator drum and arranged along the drum axis. The blades are spiral-shaped, which helps to achieve axial conveying of the material during rotation. Specifically, the spiral blades rotate continuously under the drive of airflow, causing the material to tumble and be propelled towards the discharge direction, improving the flow continuity and automation of the drying process, and making it suitable for continuous operation scenarios.

[0011] In a preferred embodiment, the mixing tank is further configured such that one end has a feed hopper for easy raw material feeding, and the other end is connected to a receiving hopper, forming a continuous path from feeding to drying and then to receiving. Specifically, this arrangement optimizes the material path, reduces congestion, and increases the throughput per unit time.

[0012] In a preferred embodiment, the mixing drum is further configured such that its axial direction is inclined, with the height gradually increasing from the feed end to the discharge end, thereby enhancing the natural forward movement of the material under gravity. Specifically, the inclined design, combined with the thrust of the helical blades, enables stable and continuous material movement, reducing the risk of accumulation or blockage.

[0013] In a preferred embodiment, the mixing tank is further configured such that an overflow trough is provided at the bottom of the tank, located at the lowest point of the tank body, to collect the water that separates out during the drying process and drain it promptly. Specifically, this structure prevents water retention from affecting drying efficiency and also prevents secondary wetting of the material, ensuring the overall drying effect.

[0014] In a preferred embodiment, the electric heating chamber is further configured such that an electric heating component is located inside, and a grid mesh is provided on its surface to guide airflow evenly through the heating zone. Specifically, this design improves airflow stability and heating uniformity, avoids localized overheating, and extends the lifespan of the heating element.

[0015] In summary, this utility model achieves a high degree of integration of hot air drying, pneumatically driven stirring, material propulsion, and drainage through the structural cooperation between the electric heating box, circulating fan, and air-drying agitator assembly. It has the advantages of compact structure, high efficiency, low energy consumption, and high degree of automation, and is particularly suitable for the rapid drying of granular materials such as plastic particles.

[0016] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, the stirring tank is axially inclined, and combined with the pushing action of the spiral blades, the plastic particles can move forward automatically during the drying process. The overflow trough at the bottom is used to drain the water, reduce the residual moisture, improve the drying quality of the material, and enable continuous processing.

[0017] 2. In this utility model, hot airflow is introduced into the volute by a circulating fan, and the spiral air passage drives the spiral stirring blades to rotate, thereby achieving synchronous stirring and hot air drying of plastic particles, effectively improving drying efficiency and preventing particle agglomeration, and improving drying uniformity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of a drying oven and an electric heating box according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the air-drying agitator assembly according to one embodiment of the present invention; Figure 4 This is a schematic diagram of the stirring tank structure according to one embodiment of the present invention.

[0019] Figure label: 100. Drying oven; 110. Electric heating box; 120. Material receiving hopper; 200. Circulating fan; 300. Air-drying agitator assembly; 310. Agitator drum; 320. Diversion volute; 330. Spiral agitator blades; 311. Feed hopper; 312. Overflow trough. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0021] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0022] The following describes, with reference to the accompanying drawings, some embodiments of a plastic particle air-driing device provided by this utility model.

[0023] Combination Figures 1-4 As shown, this utility model provides a plastic particle air-powered drying device, including a drying chamber 100, a circulating fan 200, and an air-drying agitator assembly 300. The air-drying agitator assembly 300 is fixedly installed inside the drying chamber 100. An electric heating box 110 is fixedly installed on the top surface of the drying chamber 100, which provides a heat source for the circulating gas. The air inlet of the circulating fan 200 is connected to the inner cavity of the electric heating box 110, and is used to draw in the heated airflow and circulate it. A collection hopper 120 is detachably installed on the bottom surface of the drying chamber 100 for collecting the dried plastic particles.

[0024] The air-drying agitator assembly 300 includes an agitator 310, a flow-guiding volute 320, and a spiral agitator 330, wherein the spiral agitator 330 is rotatably mounted inside the agitator 310. The flow-guiding volute 320 is fixedly connected to the outer surface of the agitator 310, and the air outlet of the circulating fan 200 is connected to the air inlet of the flow-guiding volute 320. The interior of the flow-guiding volute 320 is provided with a spiral air passage, which is arranged along the circumferential direction and cooperates with the axial direction of the spiral agitator 330 to guide the hot airflow into the agitator 310 along the spiral path, thereby generating a rotational force to drive the spiral agitator 330 to rotate, thus realizing the agitation of the material.

[0025] like Figure 2 As shown, a return channel is provided between the top of the inner cavity of the drying chamber 100 and the inner cavity of the circulating fan 200, so that the airflow in the drying chamber 100 can return to the electric heating box 110 for further heating after the material is heated and dried, thereby realizing the circulation of hot airflow, improving thermal efficiency and reducing energy consumption.

[0026] like Figure 3 As shown, preferably, there are two sets of circulating fans 200 and guide volutes 320, symmetrically arranged on both sides of the mixing tank 310. The air outlet of each set of circulating fans 200 is connected to the corresponding guide volute 320. The two sets of guide volutes 320 are symmetrically distributed about the axis origin of the mixing tank 310, which is conducive to airflow balance and symmetrical agitation, improving drying uniformity and agitation stability.

[0027] Furthermore, a feed hopper 311 is provided at one end of the mixing drum 310, through which the user can feed the plastic particles to be dried into the mixing drum 310. The spiral stirring blade 330 has a spiral blade-like structure, extending axially, and rotates under the action of hot airflow. During the rotation, it continuously turns the material and conveys it along the axial direction of the mixing drum 310 towards the feed hopper 311, realizing continuous processing of drying and feeding simultaneously. This structure has self-cleaning and self-conveying characteristics during the material drying process, reducing manual intervention.

[0028] like Figure 4As shown, the mixing tank 310 is arranged at a certain angle along the axial direction, and its axis gradually rises from one end of the feed hopper 311 to the other end of the receiving hopper 120, so that the material naturally moves to the lower end and is discharged under the action of gravity and the spiral blades, effectively avoiding material accumulation.

[0029] To ensure timely drainage of liquid during the drying process, an overflow trough 312 is provided on the bottom surface of the mixing tank 310. The overflow trough 312 is located at the lowest point of the bottom of the mixing tank 310, which can promptly drain water that has entered due to heating or the material itself, preventing the accumulation of liquid from affecting the drying effect and ensuring a dry and clean internal environment.

[0030] In addition, the electric heating chamber 110 is equipped with an electric heating component, which can take the form of an electric heating tube, PTC element, etc., to achieve rapid heating. To ensure that the airflow remains smooth and uniform during the heating process, the surface of the electric heating component is equipped with a grid mesh, which increases the heat exchange area and improves the airflow heating efficiency.

[0031] Working principle and usage process of this utility model: This device uses a circulating fan 200 to drive a heated airflow, which is then delivered into the drying agitator assembly 300 installed inside the drying chamber 100. The spiral air passage of the guide volute 320 guides the hot airflow to rotate, driving the spiral agitator 330 to rotate. The spiral agitator 330 both tumbles and stirs the plastic particles and pushes them along the mixing drum 310 towards the discharge direction, such as the receiving hopper 120. This creates a closed-loop hot airflow during the drying process, improving drying efficiency.

[0032] The electric heating box 110 heats the airflow through its internal electric heating components and guides the airflow through the grid mesh to achieve uniform heating; some of the hot and humid airflow can flow back to the electric heating box from the top of the drying box to achieve airflow reuse.

[0033] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A plastic particle air-powered drying device, characterized in that, include: The drying chamber (100), the circulating fan (200), and the air-drying agitator assembly (300) fixed inside the drying chamber (100) are provided. An electric heating box (110) is fixedly installed on the top surface of the drying chamber (100), and the air inlet port of the circulating fan (200) is connected to the inner cavity of the electric heating box (110). A receiving hopper (120) is detachably installed on the bottom surface of the drying chamber (100). The air-drying agitator assembly (300) includes a stirring drum (310), a flow guide volute (320), and a spiral agitator (330) rotatably installed inside the stirring drum (310). The flow guide volute (320) is fixed to the surface of the stirring drum (310), and the air outlet of the circulating fan (200) is connected to the port of the flow guide volute (320). The internal air passages of the flow guide volute (320) are arranged in a spiral direction to guide the airflow to drive the spiral agitator (330) to rotate.

2. The air-powered drying device for plastic particles according to claim 1, characterized in that, The top surface of the inner cavity of the drying box (100) is connected to the inner cavity of the circulating fan (200) to allow the airflow inside the drying box (100) to flow back into the inner side of the electric heating box (110).

3. The air-powered drying device for plastic particles according to claim 1, characterized in that, The number of circulating fans (200) and diversion volutes (320) are two sets and are connected to each other. The two diversion volutes (320) are symmetrically distributed about the origin of the stirring tank (310).

4. The air-powered drying device for plastic particles according to claim 1, characterized in that, The mixing drum (310) is provided with a feeding hopper (311) at one end. The spiral stirring blade (330) is in the shape of a spiral blade and is used to push the material to one end of the feeding hopper (311) during rotation. Specifically, during the rotation of the spiral stirring blade (330), it rotates and stirs and pushes the material inside the mixing drum (310) to one end of the feeding hopper (311).

5. The air-powered drying device for plastic particles according to claim 1, characterized in that, The mixing tank (310) is arranged at an axial angle, and its height gradually increases from the feed hopper (311) to the receiving hopper (120).

6. The air-powered drying device for plastic particles according to claim 1, characterized in that, The bottom surface of the mixing tank (310) is provided with an overflow trough (312) for material liquid discharge.

7. The air-powered drying device for plastic particles according to claim 1, characterized in that, The electric heating box (110) is equipped with an electric heating component inside, and the surface of the electric heating component is equipped with a grid mesh for guiding airflow.

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