Plastic particle drying device

Abstract

The utility model relates to the technical field of plastic processing, and provides a plastic particle drying device which comprises an air heater, an air inlet pipe, a drying barrel and an air outlet pipe, the two ends of the air inlet pipe communicate with the air heater and the bottom of the drying barrel correspondingly, and the air inlet pipe is used for hot air circulation; the drying barrel is used for containing and drying plastic particles, and the air outlet pipe communicates with the top of the drying barrel. The plastic particle drying device has the effect of conveniently drying plastic particles.

Description

Technical Field

[0001] The present application relates to the technical field of plastic processing, and particularly relates to a plastic particle drying device. Background Art

[0002] Plastics are high-molecular compounds polymerized from monomers through addition polymerization or polycondensation reactions, and are composed of synthetic resins and additives such as fillers, plasticizers, lubricants, and colorants. During the cable manufacturing process, the hot melt quality of plastic particles directly affects the performance of the insulating layer. When producing plastic particles, wire drawing and granulation are two crucial processes. First, the plastic after wire drawing is cooled through a water cooling tank to ensure its stable forming. Subsequently, the cooled plastic is granulated to form plastic particles. However, since a large amount of moisture adheres to the plastic particles during the cooling process, drying treatment must be carried out.

[0003] Currently, traditional drying equipment generally adopts the drum drying method. This method drives the rotation of the drum through a motor, causing the plastic particles inside to tumble, and at the same time heating the inside of the drum to achieve the drying effect.

[0004] In view of the above related technologies, although the above method can achieve the drying of plastic particles, the drying depends on the heat transfer rate between the plastic particles and the drum, which easily leads to a longer drying time for the plastic particles, thus affecting the overall drying effect, and therefore needs to be improved. Utility Model Content

[0005] In order to facilitate the drying of plastic particles, the present application provides a plastic particle drying device.

[0006] A plastic particle drying device provided by the present application adopts the following technical solution:

[0007] A plastic particle drying device includes a hot air blower, an air inlet pipe, a drying barrel, and an air outlet pipe. The two ends of the air inlet pipe are respectively communicated with the hot air blower and the bottom of the drying barrel, and the air inlet pipe is used for the circulation of hot air; the drying barrel is used for accommodating and drying plastic particles, and the air outlet pipe is communicated with the top of the drying barrel.

[0008] By adopting the above technical solution, during use, the staff first pours plastic particles into the drying barrel, and then starts the hot air blower. The hot air blown out by the hot air blower enters the drying barrel along the air inlet pipe. The hot air blows onto the surface of the plastic particles from bottom to top and continuously stirs the plastic particles to achieve drying. Among them, the air in the drying barrel is discharged into the atmosphere through the air outlet pipe to ensure the air pressure balance in the drying barrel.

[0009] On the one hand, the hot air can transfer heat to the plastic particles. On the other hand, the hot air can accelerate the air flow rate in the drying barrel, accelerate the evaporation of moisture, so as to quickly dry the plastic particles and improve the drying effect. This not only improves the quality stability of the cable insulation layer, but also improves the production efficiency and reduces the production cost.

[0010] Preferably, the drying barrel includes a barrel body and a cover body. The cover body is rotatably connected to the barrel body. A cavity for accommodating plastic particles is formed between the barrel body and the cover body. The air inlet pipe is communicated with the barrel body, and the air outlet pipe is communicated with the cover body.

[0011] By adopting the above technical solution, during use, the staff first opens the cover body, then pours the plastic particles to be dried into the barrel body, and then covers the barrel body with the cover body and starts the hot air blower.

[0012] Preferably, the cross-sectional diameter of the barrel body gradually increases in the direction close to the cover body, and the air inlet pipe is connected to one end of the barrel body far from the cover body.

[0013] By adopting the above technical solution, the air inlet pipe is connected to the smaller end of the two ends of the barrel body, so that the hot air can fully blow the plastic particles.

[0014] Preferably, a discharge pipe is communicated with the bottom of the barrel body, and the discharge pipe is used for discharging the dried plastic particles.

[0015] By adopting the above technical solution, the dried plastic particles directly fall into the external screw extruder along the discharge pipe for subsequent hot melt processing.

[0016] Preferably, it further includes an intercepting plate. The intercepting plate is movably arranged between the barrel body and the discharge pipe, and the intercepting plate is used for intercepting plastic particles.

[0017] By adopting the above technical solution, when the plastic particles are being dried, the intercepting plate can separate the barrel body and the discharge pipe to prevent the plastic particles from falling out of the discharge pipe. After drying, by moving the intercepting plate, the discharge pipe and the barrel body are communicated with each other to facilitate the dropping of the plastic particles.

[0018] Preferably, it further includes a gas spring. The gas spring is arranged on the barrel body and connected to the cover body, and the gas spring is used to control the rotation of the cover body.

[0019] By adopting the above technical solution, the gas spring is an industrial accessory that can perform functions such as support, height adjustment and angle adjustment. Using the gas spring to control the rotation of the cover body improves automation.

[0020] Preferably, a heat insulation pad is sleeved on the outer surface of the air inlet pipe, and the heat insulation pad is made of heat insulation material.

[0021] By adopting the above technical solution, the thermal conductivity of the insulation pad is relatively poor, and when the staff accidentally touches the air inlet pipe, the possibility of being burned can be reduced.

[0022] Preferably, a support frame is further included, and the support frame is used to support the drying barrel.

[0023] By adopting the above technical solution, the support frame is installed on the ground to support the entire drying barrel.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] (1) By setting up a hot air blower, an air inlet pipe and a drying barrel, the hot air blown by the hot air blower enters the drying barrel along the air inlet pipe, and the hot air blows from bottom to top onto the surface of the plastic particles and continuously stirs the plastic particles, thereby shortening the drying time of the plastic particles and achieving rapid drying.

[0026] (2) By setting up a discharge pipe, the dried plastic particles fall directly into the external screw extruder along the discharge pipe for subsequent hot melt processing.

[0027] (3) By setting up an interception plate, when the plastic particles are being dried, the interception plate can separate the barrel and the discharge pipe to prevent the plastic particles from falling out along the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a drying device in an embodiment of the present application;

[0029] Figure 2 It is a cross-sectional schematic diagram of the drying device AA in the embodiment of the present application.

[0030] Figure numerals: 1, support frame; 2, hot air blower; 3, air inlet pipe; 4, drying barrel; 41, barrel body; 42, cover body; 5, air outlet pipe; 6, gas spring; 7, discharge pipe; 8, interception plate; 9, cavity. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0032] In the description of the present application, the reference to expressions such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics represented in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics represented can be combined in a suitable manner in any one or more embodiments or examples.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0034] In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "attachment", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection; it can also be a detachable connection; or it can be integrated; it can also be a mechanical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0035] The following will describe in detail some embodiments of this application with reference to the accompanying drawings. Without conflict, those skilled in the art can combine and combine the different embodiments or examples represented in this application and the features of different embodiments or examples.

[0036] An embodiment of this application discloses a plastic particle drying device. Refer to Figure 1 , the drying device includes a support frame 1, a hot air blower 2, an air inlet pipe 3, a drying barrel 4, and an air outlet pipe 5. The support frame 1 serves as a support carrier and is fixedly installed on the ground; the hot air blower 2 is located above the support frame 1, the drying barrel 4 is installed on the support frame 1, and the drying barrel 4 and the hot air blower 2 are connected through the air inlet pipe 3. One end of the air inlet pipe 3 is connected to the air outlet of the hot air blower 2, and the other end is communicated with the bottom of the drying barrel 4. The air inlet pipe 3 is used for the hot air to flow through. The drying barrel 4 is used for accommodating and drying plastic particles, and the air outlet pipe 5 is communicated with the top of the drying barrel 4. In some embodiments, a heat insulation pad (not shown in the figure) is also sleeved on the outer surface of the air inlet pipe 3, and the heat insulation pad is made of heat insulation material. When a worker accidentally touches the air inlet pipe 3, due to the poor heat conduction ability of the heat insulation pad, the possibility of being scalded can be reduced, and the production safety can be improved.

[0037] During use, the staff first pour plastic particles into the drying barrel 4, and then start the hot air blower 2. The hot air blown out by the hot air blower 2 enters the drying barrel 4 along the air inlet pipe 3. The hot air blows upward onto the surface of the plastic particles and continuously stirs the plastic particles to achieve drying. Among them, the air in the drying barrel 4 is discharged into the atmosphere through the air outlet pipe 5 to ensure the air pressure balance in the drying barrel 4.

[0038] During the drying process, on the one hand, the hot air can conduct heat transfer with the plastic particles, and on the other hand, the hot air can accelerate the air flow rate in the drying barrel 4, accelerate the evaporation of moisture, so as to quickly dry the plastic particles and improve the drying effect. This not only improves the quality stability of the cable insulation layer produced subsequently, but also improves the production efficiency and reduces the production cost.

[0039] Specifically, in combination with Figure 2 , the drying barrel 4 includes a barrel body 41 and a cover body 42. The barrel body 41 is fixedly installed on the support frame 1, and the cover body 42 is rotatably connected to the barrel body 41. A cavity 9 for accommodating plastic particles is formed between the barrel body 41 and the cover body 42. During use, the staff first open the cover body 42, then pour the plastic particles to be dried into the barrel body 41, and then cover the cover body 42 on the barrel body 41, and start the hot air blower 2 for drying. In this embodiment, the cover body 42 is controlled to rotate by a gas spring 6. The gas spring 6 is installed on the barrel body 41, and the piston rod is connected to the cover body 42. The gas spring 6 is an industrial accessory that can perform functions such as support, height adjustment and angle adjustment. By controlling the rotation of the cover body 42 through the gas spring 6, the automation is improved. The air inlet pipe 3 is communicated with the barrel body 41, and the air outlet pipe 5 is communicated with the cover body 42. As shown in the figure, in this embodiment, the barrel body 41 is frustum-shaped, the cross-section of the barrel body 41 is circular, and the cross-sectional diameter of the barrel body 41 gradually increases along the direction close to the cover body 42. The air inlet pipe 3 is connected to the end of the barrel body 41 far from the cover body 42. The hot air is blown into from the smaller end of the two ends of the barrel body 41, which reduces the loss of the hot air flow rate to a certain extent, so that the hot air can fully blow the plastic particles and improve the drying effect.

[0040] In addition, a discharge pipe 7 is communicated with the bottom of the barrel body 41. The discharge pipe 7 is used for discharging the dried plastic particles. The dried plastic particles directly fall into the external screw extruder along the discharge pipe 7 for subsequent hot melt processing. Among them, an intercepting plate 8 is also installed between the barrel body 41 and the discharge pipe 7. The intercepting plate 8 can move horizontally and is used to intercept plastic particles. When the plastic particles are being dried, the intercepting plate 8 can cut off the barrel body 41 and the discharge pipe 7 to prevent the plastic particles from falling from the discharge pipe 7. After the drying is completed, by moving the intercepting plate 8, the discharge pipe 7 and the barrel body 41 are communicated with each other to facilitate the dropping of the plastic particles.

[0041] The implementation principle of a plastic particle drying device according to an embodiment of the present application is as follows: During use, the staff first opens the cover body 42, then pours the plastic particles to be dried into the barrel body 41, and then covers the barrel body 41 with the cover body 42. Then, the hot air blower 2 is started. The hot air blown out by the hot air blower 2 enters the drying barrel 4 along the air inlet pipe 3. The hot air blows onto the surface of the plastic particles from bottom to top and continuously stirs the plastic particles to achieve drying. The air in the drying barrel 4 is discharged into the atmosphere through the air outlet pipe 5 to ensure the air pressure balance in the drying barrel 4.

[0042] During the drying process, on the one hand, the hot air can conduct heat transfer with the plastic particles, and on the other hand, the hot air can increase the air flow rate in the drying barrel 4 and accelerate the evaporation of moisture, thereby achieving rapid drying of the plastic particles and improving the drying effect. After the drying is completed, the staff applies an external force to the intercepting plate 8 and horizontally moves the intercepting plate 8 to connect the discharge pipe 7 and the barrel body 41, facilitating the falling out of the plastic particles for subsequent production.

[0043] The above are all the preferred embodiments of the present application. Without limiting the protection scope of the present application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A plastic particle drying device, characterized in that: The invention comprises a hot air blower (2), an air inlet pipe (3), a drying barrel (4) and an air outlet pipe (5), wherein the two ends of the air inlet pipe (3) are respectively connected to the hot air blower (2) and the bottom of the drying barrel (4), and the air inlet pipe (3) is used for circulating hot air; the drying barrel (4) is used for containing and drying plastic particles, and the air outlet pipe (5) is connected to the top of the drying barrel (4).

2. A plastic particle drying device according to claim 1, characterized in that: The drying barrel (4) comprises a barrel body (41) and a cover body (42); the cover body (42) is rotatably connected to the barrel body (41); a cavity (9) for accommodating plastic particles is formed between the barrel body (41) and the cover body (42); the air inlet pipe (3) is connected to the barrel body (41); and the air outlet pipe (5) is connected to the cover body (42).

3. A plastic particle drying device according to claim 2, characterized in that: The cross-sectional diameter of the barrel body (41) gradually increases in a direction approaching the cover body (42), and the air inlet pipe (3) is connected to an end of the barrel body (41) away from the cover body (42).

4. A plastic particle drying device according to claim 2, characterized in that: The bottom of the barrel (41) is connected to a discharge pipe (7), and the discharge pipe (7) is used to discharge the dried plastic particles.

5. A plastic particle drying device according to claim 4, characterized in that: It also includes an interception plate (8), which is movably disposed between the barrel body (41) and the discharge pipe (7), and is used to intercept plastic particles.

6. A plastic particle drying device according to claim 2, characterized in that: It also includes a gas spring (6), which is arranged on the barrel body (41) and connected to the cover body (42), and the gas spring (6) is used to control the rotation of the cover body (42).

7. A plastic particle drying device according to claim 1, characterized in that: A heat insulation pad is sleeved on the outer surface of the air inlet pipe (3), and the heat insulation pad is made of a heat insulation material.

8. The plastic particle drying device according to claim 1, characterized in that: It also comprises a support frame (1), wherein the support frame (1) is used to support the drying barrel (4).

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