Mixer for plastic particles

Abstract

The utility model discloses a mixer for plastic particles, which relates to the field of plastic processing equipment and comprises a mixing tank, a first mixing mechanism is mounted at the bottom of the mixing tank, a second mixing mechanism is mounted at the upper end of the mixing tank, the first mixing mechanism is arranged right below the second mixing mechanism, and the second mixing mechanism is arranged right below the first mixing mechanism. A first discharging pipe and a second discharging pipe are mounted on the side surface of the lower end of the mixing tank, and a circulating lifting mechanism is arranged on the side edge of the mixing tank; according to the plastic particle mixing device, the second material mixing mechanism and the first material mixing mechanism are arranged at the upper end and the lower end of the material mixing tank, so that the second material mixing mechanism and the first material mixing mechanism are matched to mix and stir plastic particles on the inner wall of the material mixing tank; the plastic particles at the bottom of the mixing tank are lifted to the upper part of the mixing tank through the circulating lifting mechanism, so that the vertical mixing of the plastic particles in the mixing tank is increased, and the mixing uniformity of the plastic particles in the mixing tank is improved.

Description

Technical Field

[0001] The utility model relates to the field of plastic processing equipment, in particular to a mixer for plastic particles. Background Art

[0002] The mixer for plastic particles is mainly used for the mixing and coloring of polyvinyl chloride resin, the coloring and drying of polyethylene and polypropylene particles, the drying of hygroscopic resins such as ABS and polycarbonate resin before molding processing, and the mixing of phenolic resin and other processes. It is one of the essential equipment in plastic processing plants and also has wide applications in industries such as rubber, pharmaceutical, and dye.

[0003] When the traditional mixer for plastic particles is in use, the mixing mechanism at the bottom of the mixing tank is often used for mixing. However, only using the mixing mechanism at the bottom causes poor mixing effect of plastic particles and takes more time to mix evenly.

[0004] Based on this, a mixer is designed with cyclic lifting and can also stir plastic particles at the upper and lower parts of the mixing tank. Summary of the Utility Model

[0005] The utility model aims at the deficiencies existing in the prior art and provides the following technical solutions: A mixer for plastic particles, including a mixing tank, a first mixing mechanism is installed at the bottom of the mixing tank, a second mixing mechanism is installed at the upper end of the mixing tank, and the first mixing mechanism is directly below the second mixing mechanism. A support frame for support is installed at the bottom of the mixing tank. A first discharge pipe and a second discharge pipe are installed on the side surface at the lower end of the mixing tank, and the first discharge pipe is above the second discharge pipe. A cyclic lifting mechanism is arranged on the side of the mixing tank, and a feeding pipe for feeding materials is also installed at the upper end of the mixing tank.

[0006] As an improvement of the above technical solution, the cyclic lifting mechanism includes a circulation pipe installed on the side at the lower end of the mixing tank, and the feeding end of the circulation pipe is in the same plane as the feeding end of the second discharge pipe. A screw elevator is installed at the discharge end of the circulation pipe, and a return pipe for discharging materials is installed at the upper end of the screw elevator, and the discharge end of the return pipe is welded to the upper end of the mixing tank.

[0007] As an improvement of the above technical solution, three cyclic lifting mechanisms are arranged at equal intervals.

[0008] As an improvement of the above technical solution, the first mixing mechanism includes a first mixing motor installed at the lower end of the mixing tank. A rotating rod is fixed to the output shaft of the first mixing motor. Spiral blades are welded on the outer surface of the rotating rod. A scraper is welded at the lower end of the rotating rod, and the scraper is in contact with the inner surface of the mixing tank. A connecting rod is welded at the upper end of the rotating rod, and the four branched ends of the connecting rod are welded to the upper ends of the four scrapers.

[0009] As an improvement of the above technical solution, the second mixing mechanism includes a second mixing motor installed at the upper end of the mixing tank. A mixing turntable is fixed to the output shaft of the second mixing motor, and a material distributing plate is welded on the upper surface of the mixing turntable.

[0010] As an improvement of the above technical solution, the material distributing plate is of an arc-shaped structure, and several material distributing plates are distributed in a circular array.

[0011] Beneficial effects of the present utility model:

[0012] 1. Through the second mixing mechanism and the first mixing mechanism arranged at the upper end and the lower end of the mixing tank, it is convenient for the second mixing mechanism and the first mixing mechanism to cooperate to mix and stir the plastic particles on the inner wall of the mixing tank. The circulating lifting mechanism arranged on the side of the mixing tank enables the plastic particles at the bottom of the mixing tank to be lifted to the upper part of the mixing tank through the circulating lifting mechanism, thereby increasing the up-and-down mixing of the plastic particles inside the mixing tank and improving the uniformity of the mixing of the plastic particles in the mixing tank.

[0013] 2. The circulating lifting mechanism is composed of a circulating pipe, a screw elevator and a return pipe. The circulating pipe is used to introduce the plastic particles inside the mixing tank into the screw elevator, and the screw elevator is used to lift the plastic particles. At the same time, the plastic particles lifted by the screw elevator are introduced into the upper part of the mixing tank through the return pipe, realizing the circulating lifting of the plastic particles.

[0014] 3. Through the first mixing mechanism composed of a first mixing motor, a rotating rod, screw propeller blades, a scraping plate and a connecting rod, the output shaft of the first mixing motor installed at the lower end of the mixing tank is used to drive the rotating rod. The screw propeller blades and the scraping plate are welded on the rotating rod, and the scraping plate is in contact with the inner surface of the mixing tank. Thus, it is convenient for the scraping plate and the screw propeller blades to cooperate to mix the plastic particles at the bottom of the mixing tank. The connecting rod welded to the upper end of the rotating rod facilitates the fixing of the upper end of the scraping plate by the connecting rod, thereby increasing the reliability of the connection between the connecting rod and the rotating rod.

[0015] 4. Through the second mixing mechanism composed of a second mixing motor, a mixing turntable and a material distributing plate, the mixing turntable is fixed to the output shaft of the second mixing motor, which facilitates the output shaft of the second mixing motor to drive the mixing turntable to rotate. A material distributing plate is welded on the upper surface of the mixing turntable, so that the plastic particles in the return pipe and the feeding pipe fall above the mixing turntable. It is convenient for the mixing turntable to drive the plastic particles on the upper surface to rotate, so that the plastic particles are scattered at the bottom of the mixing tank under the action of centrifugal force, increasing the mixing of the plastic particles at the upper end of the mixing tank by the second mixing mechanism. Description of the drawings

[0016] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0017] Figure 2 This is a sectional structure diagram of the present utility model;

[0018] Figure 3 This is a three-dimensional structure diagram of the first mixing mechanism in the present utility model;

[0019] Figure 4 This is a three-dimensional structure diagram of the second mixing mechanism in the present utility model.

[0020] Reference numerals: 1, mixing tank; 2, first mixing mechanism; 21, first mixing motor; 22, rotating rod; 23, spiral blade; 24, scraper; 25, connecting rod; 3, second mixing mechanism; 31, second mixing motor; 32, mixing turntable; 33, distributing plate; 4, support frame; 5, first discharge pipe; 6, second discharge pipe; 7, circulation pipe; 8, screw elevator; 9, return pipe; 10, feeding pipe. Specific embodiments

[0021] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a mixer for plastic particles, including a mixing tank 1, a first mixing mechanism 2 is installed at the bottom of the mixing tank 1, a second mixing mechanism 3 is installed at the upper end of the mixing tank 1, and the first mixing mechanism 2 is directly below the second mixing mechanism 3. A support frame 4 for support is installed at the bottom of the mixing tank 1. A first discharge pipe 5 and a second discharge pipe 6 are installed on the side surface of the lower end of the mixing tank 1, and the first discharge pipe 5 is above the second discharge pipe 6. A circulation and lifting mechanism is provided on the side of the mixing tank 1, and a feeding pipe 10 for feeding is also installed at the upper end of the mixing tank 1.

[0023] In this embodiment, through the second mixing mechanism 3 and the first mixing mechanism 2 provided at the upper and lower ends of the mixing tank 1, it is convenient for the second mixing mechanism 3 and the first mixing mechanism 2 to cooperate to mix and stir the plastic particles on the inner wall of the mixing tank 1. The circulation and lifting mechanism provided on the side of the mixing tank 1 enables the plastic particles at the bottom of the mixing tank 1 to be lifted to the upper part of the mixing tank 1 through the circulation and lifting mechanism, thereby increasing the up-and-down mixing of the plastic particles inside the mixing tank 1 and improving the uniformity of the mixing of the plastic particles in the mixing tank 1.

[0024] Specifically, the circulating lifting mechanism includes a circulation pipe 7 installed on the side of the lower end of the mixing tank 1, and the feeding end of the circulation pipe 7 and the feeding end of the second discharge pipe 6 are in the same plane. A screw elevator 8 is installed at the discharge end of the circulation pipe 7, and a return pipe 9 for discharging is installed at the upper end of the screw elevator 8. The discharge end of the return pipe 9 is welded to the upper end of the mixing tank 1. Three sets of the circulating lifting mechanism are arranged at equal intervals.

[0025] In this embodiment, the circulating lifting mechanism is composed of a circulation pipe 7, a screw elevator 8 and a return pipe 9. The circulation pipe 7 is used to introduce the plastic particles inside the mixing tank 1 into the screw elevator 8, and the screw elevator 8 is used to lift the plastic particles. At the same time, the plastic particles lifted by the screw elevator 8 are introduced into the upper part of the mixing tank 1 through the return pipe 9 to realize the circulating lifting of the plastic particles. Those skilled in the art understand that the number of the circulating lifting mechanisms can be set differently according to the size of the mixing tank 1.

[0026] Specifically, the first mixing mechanism 2 includes a first mixing motor 21 installed at the lower end of the mixing tank 1. A rotating rod 22 is fixed to the output shaft of the first mixing motor 21. A screw blade 23 is welded to the outer surface of the rotating rod 22. A scraping plate 24 is welded to the lower end of the rotating rod 22, and the scraping plate 24 is in contact with the inner surface of the mixing tank 1. A connecting rod 25 is welded to the upper end of the rotating rod 22, and the four branched ends of the connecting rod 25 are welded to the upper ends of the four scraping plates 24.

[0027] In this embodiment, through the first mixing mechanism 2 composed of a first mixing motor 21, a rotating rod 22, a screw blade 23, a scraping plate 24 and a connecting rod 25, the output shaft of the first mixing motor 21 installed at the lower end of the mixing tank 1 is used to drive the rotating rod 22. The screw blade 23 and the scraping plate 24 are welded to the rotating rod 22, and the scraping plate 24 is in contact with the inner surface of the mixing tank 1. Thus, it is convenient for the scraping plate 24 and the screw blade 23 to cooperate to mix the plastic particles at the bottom of the mixing tank 1. The connecting rod 25 welded to the upper end of the rotating rod 22 facilitates the fixing of the upper end of the scraping plate 24 by the connecting rod 25, thereby increasing the reliability of the connection between the connecting rod 25 and the rotating rod 22.

[0028] Specifically, the second mixing mechanism 3 includes a second mixing motor 31 installed at the upper end of the mixing tank 1. A mixing turntable 32 is fixed to the output shaft of the second mixing motor 31. A distributing plate 33 is welded to the upper surface of the mixing turntable 32. The distributing plate 33 is of an arc structure, and a plurality of distributing plates 33 are distributed in a circular array.

[0029] In this embodiment, through the second mixing mechanism 3 composed of the second mixing motor 31, the mixing turntable 32 and the material distribution plate 33, the mixing turntable 32 is fixed on the output shaft of the second mixing motor 31, which facilitates the output shaft of the second mixing motor 31 to drive the mixing turntable 32 to rotate. The material distribution plate 33 is welded on the upper surface of the mixing turntable 32, so that the plastic particles in the reflux pipe 9 and the feeding pipe 10 fall above the mixing turntable 32, which facilitates the mixing turntable 32 to drive the plastic particles on the upper surface to rotate, so that the plastic particles are scattered at the bottom of the mixing tank 1 under the action of centrifugal force, increasing the mixing of the plastic particles at the upper end of the mixing tank 1 by the second mixing mechanism 3.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A mixer for plastic particles, comprising a mixing tank (1), characterized in that: A first mixing mechanism (2) is installed at the bottom of the mixing tank (1), a second mixing mechanism (3) is installed at the upper end of the mixing tank (1), and the first mixing mechanism (2) is directly below the second mixing mechanism (3). A support frame (4) for support is installed at the bottom of the mixing tank (1). A first discharge pipe (5) and a second discharge pipe (6) are installed on the side surface of the lower end of the mixing tank (1), and the first discharge pipe (5) is located above the second discharge pipe (6). A circulating lifting mechanism is arranged on the side of the mixing tank (1). A feeding pipe (10) for feeding is also installed at the upper end of the mixing tank (1).

2. The mixer for plastic particles according to claim 1, characterized in that: The circulating lifting mechanism includes a circulating pipe (7) installed on the side of the lower end of the mixing tank (1), and the feeding end of the circulating pipe (7) is on the same plane as the feeding end of the second discharge pipe (6). A screw elevator (8) is installed at the discharging end of the circulating pipe (7). A return pipe (9) for discharging is installed at the upper end of the screw elevator (8), and the discharging end of the return pipe (9) is welded to the upper end of the mixing tank (1).

3. The mixer for plastic particles according to claim 2, characterized in that: Three of the circulating lifting mechanisms are arranged at equal intervals.

4. A mixer for plastic particles according to claim 1, characterized in that: The first mixing mechanism (2) includes a first mixing motor (21) installed at the lower end of the mixing tank (1). A rotating rod (22) is fixed to the output shaft of the first mixing motor (21). A propeller blade (23) is welded to the outer surface of the rotating rod (22). A scraper (24) is welded to the lower end of the rotating rod (22), and the scraper (24) is in contact with the inner surface of the mixing tank (1). A connecting rod (25) is welded to the upper end of the rotating rod (22), and the four branched ends of the connecting rod (25) are welded to the upper ends of the four scrapers (24).

5. A blender for plastic particles according to claim 1, characterized in that: The second mixing mechanism (3) includes a second mixing motor (31) installed at the upper end of the mixing tank (1). A mixing turntable (32) is fixed to the output shaft of the second mixing motor (31). A distributing plate (33) is welded to the upper surface of the mixing turntable (32).

6. The mixer for plastic particles according to claim 5, characterized in that: The distributing plate (33) is of an arc-shaped structure, and several distributing plates (33) are distributed in a circular array.

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