Preheating device for plastic particle production

Abstract

The utility model belongs to the technical field of plastic particle processing, and particularly discloses a preheating device for plastic particle production, which comprises a tank body, a feed port, an exhaust port and a driving motor are arranged above the tank body, a discharge port is arranged below the tank body, a heating plate is arranged on the inner wall of the tank body, and a driving shaft of the driving motor is connected with a rotating rod. The rotating rod is inserted into the tank body and is connected with a stirring rod; an exhaust fan is installed in the exhaust port, a mounting groove is formed above the exhaust port, a screen frame is arranged in the mounting groove, an activated carbon filter screen and a photocatalyst filter screen are arranged in the screen frame, a threaded sleeve is in threaded connection with the outer side of the exhaust port, an air outlet head is arranged above the threaded sleeve, and a pressing ring is arranged at the position, close to the middle, of the inner wall of the threaded sleeve. Plastic particles are preheated through a heating plate, an air outlet head and an exhaust fan are turned on, internal air can be exhausted, and gas is filtered through an activated carbon filter screen and a photocatalyst filter screen in the process; the screen frame is limited by arranging the pressing ring, so that later disassembly and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle processing, and particularly relates to a preheating device for plastic particle production. Background Technique

[0002] Plastic particles refer to granular plastics, which are generally divided into many types, with thousands of subdivisions. Common plastic particles include general plastics, engineering plastics, and special plastics. General plastics: polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, etc. Engineering plastics: nylon, polytetrafluoroethylene, polyoxymethylene, polycarbonate, silicone, etc. Special plastics: thermosetting plastics, functional polymer plastics, such as artificial kidneys.

[0003] During the processing of plastic particles, it is generally necessary to preheat them. In order to avoid the phenomenon of plastic particles caking during heating, people usually set up a stirring mechanism in the tank to avoid caking. For example, the Chinese utility model patent with the publication number CN216267002U specifically discloses a plastic particle preheating device.

[0004] However, people will find that during the actual use of the above-mentioned plastic particle preheating device, a large amount of peculiar smell will be generated during the heating process of plastic particles. Workers in such an environment for a long time will feel dizzy. If it is directly discharged without treatment, it is very easy to affect the working environment of the staff. Content of the Utility Model

[0005] The purpose of the utility model is to provide a preheating device for plastic particle production, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A preheating device for plastic particle production, including a tank body, an inlet, an exhaust port and a driving motor are arranged above the tank body, an outlet is arranged below the tank body, a heating plate is arranged on the inner wall of the tank body, a rotating rod is connected to the driving shaft of the driving motor, and the rotating rod is inserted into the tank body and connected with a stirring rod.

[0007] A exhaust fan is installed inside the exhaust port, an installation groove is opened above the exhaust port, a wire frame is arranged in the installation groove, an activated carbon filter screen and a photocatalyst filter screen are arranged in the wire frame, the outside of the exhaust port is threadedly connected with a threaded sleeve, an air outlet head is arranged above the threaded sleeve, and a pressing ring is arranged at a position close to the middle of the inner wall of the threaded sleeve, and the pressing ring is located above the wire frame.

[0008] During use, when Jiali preheats plastic particles with a heating plate and needs to exhaust the gas inside the tank body, open the air outlet head and the exhaust fan, and the internal air can be exhausted. During the process, the gas is filtered through an activated carbon filter screen and a photocatalyst filter screen. The net frame is restricted by setting a compression ring. By unscrewing the threaded sleeve from the exhaust port, the compression ring is separated from the net frame, and the net frame can be directly taken out from the installation groove, which is convenient for later disassembly, installation and maintenance.

[0009] Preferably, a cover plate is arranged above the feed inlet. After adding plastic particles, the cover plate can be closed to prevent hot air from leaking out.

[0010] Preferably, an exhaust valve is arranged on the air outlet head, and a discharge valve is arranged on the discharge port. When exhausting gas or discharging materials, just open the corresponding valve.

[0011] Preferably, a scraping plate is fixed at the end of the stirring rod. The scraping plate is attached to the heating plate, and the scraping plate can prevent plastic particles from adhering to the heating plate.

[0012] Preferably, anti-slip lines are arranged on the outer side wall of the threaded sleeve to facilitate the staff to rotate the threaded sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model preheats plastic particles by setting a heating plate, improves the uniformity of preheating by turning the plastic particles with a stirring rod, can prevent plastic particles from adhering to the heating plate through a scraping plate, can filter the discharged gas by arranging an activated carbon filter screen and a photocatalyst filter screen in the exhaust port, improves the purity of the discharged air, and restricts the net frame through a compression ring arranged on the threaded sleeve, so as to facilitate the disassembly, installation and maintenance of the filter screen in the later stage, and improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic three-dimensional structure diagram of the utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the tank body of the utility model;

[0017] Figure 3 is a schematic diagram of the internal structure of the exhaust port of the utility model.

[0018] In the figure: 1. Tank body; 101. Feed inlet; 1011. Cover plate; 102. Discharge port; 103. Exhaust port; 2. Driving motor; 3. Heating plate; 4. Threaded sleeve; 401. Air outlet head; 402. Compression ring; 5. Rotating rod; 501. Stirring rod; 502. Scraping plate; 6. Net frame; 601. Activated carbon filter screen; 602. Photocatalyst filter screen; 7. Exhaust fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] Please refer to Figures 1-3 , the present utility model provides a technical solution: a preheating device for plastic particle production, including a tank body 1. An inlet 101, an exhaust port 103 and a driving motor 2 are arranged above the tank body 1. An outlet 102 is arranged below the tank body 1. A heating plate 3 is arranged on the inner wall of the tank body 1. A rotating rod 5 is connected to the driving shaft of the driving motor 2. The rotating rod 5 is inserted into the tank body 1 and connected with a stirring rod 501.

[0023] Furthermore, an exhaust fan 7 is installed inside the exhaust port 103. An installation groove is opened above the exhaust port 103. A wire mesh frame 6 is arranged in the installation groove. An activated carbon filter screen 601 and a photocatalyst filter screen 602 are arranged in the wire mesh frame 6. A threaded sleeve 4 is threadedly connected to the outside of the exhaust port 103. An air outlet head 401 is arranged above the threaded sleeve 4. A pressure ring 402 is arranged at a position near the middle of the inner wall of the threaded sleeve 4. The pressure ring 402 is located above the wire mesh frame 6.

[0024] During use, when Canon uses the heating plate 3 to preheat plastic particles and needs to discharge the gas inside the tank body 1, open the air outlet head 401 and the exhaust fan 7, and the air inside can be discharged. During the process, the gas is filtered by the activated carbon filter screen 601 and the photocatalyst filter screen 602. By setting the pressure ring 402 to limit the mesh frame 6, unscrew the threaded sleeve 4 from the exhaust port 103, so that the pressure ring 402 leaves the mesh frame 6, and the mesh frame 6 can be directly taken out of the installation groove, which is convenient for later disassembly, installation and maintenance.

[0025] Further, a cover plate 1011 is provided above the feed port 101. After adding plastic particles, the cover plate 1011 can be closed to prevent hot air from leaking out.

[0026] Further, an exhaust valve is provided on the air outlet head 401, and a discharge valve is provided on the discharge port 102. When exhaust or discharging is required, just open the corresponding valve.

[0027] Further, a scraper 502 is fixed at the end of the stirring rod 501. The scraper 502 is attached to the heating plate 3, and the scraper 502 can prevent plastic particles from adhering to the heating plate 3.

[0028] Further, anti-slip patterns are provided on the outer side wall of the threaded sleeve 4 to facilitate the staff to rotate the threaded sleeve 4.

[0029] In summary, when using this device, just open the cover plate 1011, then add plastic particles into the tank body 1, then close the cover plate 1011, start the heating plate 3, and use the heating plate 3 to preheat the plastic particles. During the process, start the drive motor 2, so that the drive motor 2 drives the rotating rod 5 to rotate, so that the rotating rod 5 drives the stirring rod 501 and the scraper 502 to rotate. Use the stirring rod 501 to turn the plastic particles to avoid caking and improve the uniformity of preheating at the same time. The scraper 502 can scrape off the plastic particles adhering to the heating plate 3. If gas needs to be discharged, just open the air outlet head 401 and the exhaust fan 7, so that the air inside the tank body 1 is discharged after passing through the activated carbon filter screen 601 and the photocatalyst filter screen 602, and use the activated carbon filter screen 601 and the photocatalyst filter screen 602 to purify the air and reduce the harmful substances in the air inside the tank body 1. If the activated carbon filter screen 601 and the photocatalyst filter screen 602 need to be removed for maintenance, just unscrew the threaded sleeve 4 from the exhaust port 103, so that the pressure ring 402 leaves the mesh frame 6, thereby canceling the restriction of the mesh frame 6, and the mesh frame 6 can be removed, and the activated carbon filter screen 601 and the photocatalyst filter screen 602 can be removed; during installation, just reinstall the mesh frame 6 into the installation groove, and then screw the threaded sleeve 4 onto the exhaust port 103 in the reverse direction, and use the pressure ring 402 to press the mesh frame 6 tightly again.

[0030] It should be noted that the entire device is controlled through the total control button. Since the devices matched with the control button are common devices and belong to the existing mature technologies, the electrical connection relationships and the specific circuit structures thereof will not be elaborated herein.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A preheating device for producing plastic particles, characterized in that: The tank body (1) comprises a tank body (1), wherein a feed port (101), an exhaust port (103) and a drive motor (2) are arranged on the top of the tank body (1), a discharge port (102) is arranged on the bottom of the tank body (1), a heating plate (3) is arranged on the inner wall of the tank body (1), a rotating rod (5) is connected to the driving shaft of the drive motor (2), and the rotating rod (5) is inserted into the tank body (1) and connected to a stirring rod (501); An exhaust fan (7) is installed inside the exhaust port (103); a mounting groove is provided above the exhaust port (103); a mesh frame (6) is provided in the mounting groove; an activated carbon filter (601) and a photocatalyst filter (602) are provided in the mesh frame (6); a threaded sleeve (4) is threadedly connected to the outside of the exhaust port (103); an air outlet head (401) is provided above the threaded sleeve (4); a pressure ring (402) is provided near the middle of the inner wall of the threaded sleeve (4); and the pressure ring (402) is located above the mesh frame (6).

2. A preheating device for producing plastic particles according to claim 1, characterized in that: A cover plate (1011) is provided above the feed inlet (101).

3. A preheating device for producing plastic particles according to claim 1, characterized in that: The gas outlet head (401) is provided with an exhaust valve, and the material outlet (102) is provided with a discharge valve.

4. A preheating device for producing plastic particles according to claim 1, characterized in that: A scraper (502) is fixed to the end of the stirring rod (501), and the scraper (502) is in contact with the heating plate (3).

5. A preheating device for producing plastic particles according to claim 1, characterized in that: Anti-slip grooves are provided on the outer side wall of the threaded sleeve (4).

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