Device for drying plastic particles

Abstract

The utility model relates to the technical field of plastic particle processing devices, in particular to a device for drying plastic particles, which is characterized in that a feed hopper and a discharge port are respectively arranged on the outer side and the inner side of the top surface of a vertical cylinder, and a discharge hopper is fixedly connected to the bottom end of the vertical cylinder; the top end of the main air pipe is fixed to the center of the top face of an inner cavity of the vertical barrel, the spiral shell is fixedly connected to the peripheral wall of the main air pipe, an inner cavity of the spiral shell communicates with an inner cavity of the main air pipe, and the outer edge of the spiral shell is attached to the inner peripheral wall of the vertical barrel; the bottom end of the side wall of the main air pipe is fixedly connected with an air inlet connecting pipe fixedly sleeved and matched with the side wall of the vertical cylinder, and air outlet micropores are fully distributed in the top surface of the spiral shell; the input end of the circulating fan is connected to the output end of the dehumidification part, the input end of the dehumidification part is connected to the discharge port, the output end of the circulating fan is connected to the input end of the heating part, and the output end of the heating part is connected to the air inlet connecting pipe; the problem that the efficiency is not high when the plastic particles are dried is well solved.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic particle processing equipment, specifically to an equipment for drying plastic particles. Background Technology

[0002] Plastic pellets are granular plastic materials, typically used as semi-finished raw materials in the production of plastic products. They are produced through processes such as melting, extrusion, and granulation. These pellets are easy to store, transport, and process, making them an indispensable raw material in the production of plastic products.

[0003] In the preparation of plastic particles, drying is required. Existing plastic particle drying equipment typically involves feeding the plastic particles into a drying chamber through a hopper, and then using a high-temperature airflow to dry them. However, the plastic particles pile up in the drying chamber, resulting in a long drying time, low efficiency, and poor drying effect. Utility Model Content

[0004] The purpose of this invention is to provide a device for drying plastic particles, which solves the problem of low efficiency in the current drying of plastic particles.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for drying plastic particles, comprising a circulating fan, a heating element, and a dehumidifying element; a feed hopper and a discharge port are respectively provided on the outer and inner sides of the top surface of the vertical cylinder; a discharge hopper is fixedly connected to the bottom end of the vertical cylinder; the spiral drying mechanism includes a main air duct with its top end fixed to the center of the top surface of the inner cavity of the vertical cylinder and a spiral shell fixedly connected to the outer peripheral wall of the main air duct and having its inner cavity communicating with the inner cavity of the main air duct; the outer edge of the spiral shell is fitted to the inner peripheral wall of the vertical cylinder; an air inlet connecting pipe fixedly connected to the bottom end of the side wall of the main air duct and fitted with the side wall of the vertical cylinder; and the top surface of the spiral shell is covered with air outlet micro-holes; the input end of the circulating fan is connected to the output end of the dehumidifying element, the input end of the dehumidifying element is connected to the discharge port, the output end of the circulating fan is connected to the input end of the heating element, and the output end of the heating element is connected to the air inlet connecting pipe.

[0006] Preferably, the heating element includes a housing, an air inlet sleeved on the center of the top surface of the housing and connected to the output end of the circulating fan, an air outlet sleeved on the side wall of the housing and connected to the air inlet connecting pipe, and an electric heating structure disposed inside the housing.

[0007] Preferably, the electric heating structure of the inner cavity of the box is a spiral electric heating plate, the top and bottom ends of the spiral electric heating plate are respectively attached to the top and bottom surfaces of the inner cavity of the box, the axial cavity of the spiral electric heating plate is directly opposite the bottom end of the air inlet, and the outer opening of the spiral electric heating plate is directly opposite the air outlet.

[0008] Preferably, the circulating fan is an axial flow fan.

[0009] Preferably, the exterior of the vertical cylinder is covered with heat-insulating material.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. In use, the plastic particles to be dried are fed into the vertical cylinder from the feed hopper and discharged from the discharge hopper. During this process, they slide in a spiral shape along the top surface of the spiral shell. The hot air ejected from the air outlet micro-holes dries the plastic particles, which greatly improves the efficiency of drying plastic particles.

[0012] 2. The device for drying plastic particles involved in this utility model uses a circulating airflow to heat and dry the plastic particles, which reduces heat waste and achieves energy saving. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the spiral drying mechanism of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the heating element of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the spiral electric heating plate of this utility model.

[0017] In the diagram: 1-Vertical cylinder; 1.1-Feed hopper; 1.2-Discharge hopper; 1.3-Discharge port;

[0018] 2-Spiral drying mechanism; 2.1-Main air duct; 2.2-Spiral shell; 2.2.1-Outlet micro-holes; 2.3-Inlet connecting pipe;

[0019] 3- Circulating fan;

[0020] 4-Heating element; 4.1-Box body; 4.2-Spiral electric heating plate; 4.3-Air inlet; 4.4-Air outlet; 5-Dehumidifier. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a device for drying plastic particles, wherein a feed hopper 1.1 and a discharge port 1.3 are respectively provided on the outer and inner sides of the top surface of a vertical cylinder 1, and a discharge hopper 1.2 is fixedly connected to the bottom end of the vertical cylinder 1. The exterior of the vertical cylinder 1 is covered with heat insulation material.

[0023] The spiral drying mechanism 2 includes a main air duct 2.1 with its top end fixed to the center of the top surface of the inner cavity of the vertical cylinder 1, and a spiral shell 2.2 fixedly connected to the outer peripheral wall of the main air duct 2.1 and whose inner cavity communicates with the inner cavity of the main air duct 2.1. The outer edge of the spiral shell 2.2 is attached to the inner peripheral wall of the vertical cylinder 1. An air inlet connecting pipe 2.3 that is fixedly sleeved and matched with the side wall of the vertical cylinder 1 is fixedly connected to the bottom end of the side wall of the main air duct 2.1. The top surface of the spiral shell 2.2 is covered with air outlet micro-holes 2.2.1.

[0024] The input end of the circulating fan 3 is connected to the output end of the dehumidifying component 5, the input end of the dehumidifying component 5 is connected to the discharge port 1.3, the output end of the circulating fan 3 is connected to the input end of the heating component 4, and the output end of the heating component 4 is connected to the air inlet connecting pipe 2.3. The heating component 4 includes a housing 4.1, an air inlet 4.3 fitted onto the center of the top surface of the housing 4.1 and connected to the output end of the circulating fan 3, an air outlet 4.4 fitted onto the side wall of the housing 4.1 and connected to the air inlet connecting pipe 2.3, and an electric heating structure located within the housing 4.1. The electric heating structure inside the housing 4.1 is a spiral electric heating plate 4.2. The top and bottom ends of the spiral electric heating plate 4.2 are respectively attached to the top and bottom surfaces of the inner cavity of the housing 4.1. The central cavity of the spiral electric heating plate 4.2 is directly opposite the bottom end of the air inlet 4.3, and the outer opening of the spiral electric heating plate 4.2 is directly opposite the air outlet 4.4. The spiral electric heating plate 4.2 is a spiral heat-conducting plate with a built-in heating wire. The circulating fan 3 is an axial flow fan. The dehumidification component 5 includes a housing and a moisture adsorption material located inside the housing. The adsorption material can be silica gel, molecular sieve, or activated alumina, etc.

[0025] In summary, when heating plastic particles, the particles are poured into the vertical cylinder 1 from the feed hopper 1.1. The particles slide downwards in a spiral shape along the top surface of the spiral shell 2.2 and are discharged from the discharge hopper 1.2. During this process, air is drawn into the chamber 4.1 by the circulating fan 3. The air is heated as it flows along the spiral cavity of the spiral electric heating plate 4.2. The hot air enters the main air duct 2.1 through the air outlet 4.4 and the air inlet connecting pipe 2.3. The hot air in the main air duct 2.1 enters the spiral shell 2.2 and is ejected from the air outlet micro-holes 2.2.1, thus achieving the effect of heating and drying the plastic particles.

[0026] The exhaust gas after the plastic particles are dried by air and heat is discharged into the dehumidifier 5 through the exhaust port 1.3. After the exhaust gas is dried, it is then drawn into the circulating fan 3 to achieve air circulation.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. An apparatus for drying plastic particles, comprising a circulating fan (3), a heating element (4), and a dehumidifying element (5), characterized in that, Also includes: A vertical cylindrical body (1) is provided with a feed hopper (1.1) on the outer side and a discharge port (1.3) on the inner side of the top surface of the vertical cylindrical body (1), and a discharge hopper (1.2) is fixedly connected to the bottom end of the vertical cylindrical body (1). The spiral drying mechanism (2) includes a main air duct (2.1) whose top end is fixed to the center of the top surface of the inner cavity of the vertical cylinder (1) and a spiral shell (2.2) fixedly connected to the outer peripheral wall of the main air duct (2.1) and whose inner cavity is connected to the inner cavity of the main air duct (2.1). The outer edge of the spiral shell (2.2) is attached to the inner peripheral wall of the vertical cylinder (1). The bottom end of the side wall of the main air duct (2.1) is fixedly connected to an air inlet connecting pipe (2.3) that is fixedly sleeved and matched with the side wall of the vertical cylinder (1). The top surface of the spiral shell (2.2) is covered with air outlet micro-holes (2.2.1). The input end of the circulating fan (3) is connected to the output end of the dehumidifying component (5), the input end of the dehumidifying component (5) is connected to the discharge port (1.3), the output end of the circulating fan (3) is connected to the input end of the heating component (4), and the output end of the heating component (4) is connected to the air inlet connecting pipe (2.3). The heating element (4) includes a housing (4.1), an air inlet (4.3) sleeved on the center of the top surface of the housing (4.1) and connected to the output end of the circulating fan (3), an air outlet (4.4) sleeved on the side wall of the housing (4.1) and connected to the air inlet connecting pipe (2.3), and an electric heating structure disposed in the housing (4.1). The electric heating structure in the inner cavity of the housing (4.1) is a spiral electric heating plate (4.2). The top and bottom ends of the spiral electric heating plate (4.2) are respectively attached to the top and bottom surfaces of the inner cavity of the housing (4.1). The axial cavity of the spiral electric heating plate (4.2) is directly opposite the bottom end of the air inlet (4.3), and the outer opening of the spiral electric heating plate (4.2) is directly opposite the air outlet (4.4).

2. The apparatus for drying plastic particles according to claim 1, characterized in that: The circulating fan (3) is an axial flow fan.

3. The apparatus for drying plastic particles according to claim 1, characterized in that: The exterior of the vertical cylinder (1) is covered with heat insulation material.

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