Air blast drying device with uniform drying effect for EVA (Ethylene Vinyl Acetate) underwater granulator

Abstract

The utility model relates to a forced air drying device of an EVA (Ethylene Vinyl Acetate) underwater granulator, which belongs to the technical field of forced air drying devices and comprises a drying barrel, heating plates arranged in an array are arranged on the drying barrel, an air heater is arranged on the upper surface of the drying barrel, a mounting box is arranged on the drying barrel, and a rotatable filter component is arranged in the drying barrel. A first motor used for driving the rotatable filtering assembly is installed on the upper surface of the drying barrel, a stirring assembly capable of drying is arranged on the drying barrel, the output end of the air heater is connected with the stirring assembly, and a second motor used for driving the stirring assembly is arranged on the upper surface of the installation box. Through a rotatable filtering assembly, a stirring assembly, an air heater, a first motor and a second motor, the rotating directions of a filtering barrel and stirring blades can be opposite, so that materials are stirred more sufficiently, water and the materials can be separated, the drying effect is improved, meanwhile, the position of an air blowing pipe can be flexibly adjusted, and the drying efficiency is improved. Therefore, the hot air is in full contact with the materials, and the drying effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of blower drying devices, and in particular to a blower drying device for an underwater EVA granulator that provides uniform drying effect. Background Technology

[0002] An underwater granulator is a machine that extrudes molten polymer through a die, then carries it out of the pelletizing chamber through a water system into a centrifugal drying system, ultimately achieving the granulation effect. The main function of an underwater granulator is to produce granular products suitable for secondary processing from resin raw materials. The working principle of an underwater granulator is as follows: molten polymer is pressurized through a twin-screw extruder, then passes through multiple channels in the die. Due to the decreasing diameter of the channels, the material is accelerated, and at the discharge end, it enters the granulation water chamber in a straight line through the die orifice. There, it is instantly cooled by granulation water at 50-70°C and then cut into granules by a high-speed rotary cutter attached to it. The granules are then transported to a centrifugal dryer for dehydration and drying via cooling water. The advantages of underwater granulators include environmental friendliness, uniform granulation, intelligent pelletizing, high efficiency, and low energy consumption. Compared with traditional granulation methods, underwater granulators have significant advantages, especially in terms of environmental protection and energy efficiency. The mixture of EVA granules and water produced by the underwater granulator needs to be separated and dried, which requires a blower drying device for the underwater EVA granulator. However, the existing blower drying devices for underwater EVA granulators generally have low drying efficiency and do not facilitate the rapid separation of water and EVA granules, thus affecting the drying effect. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a blower drying device for an underwater EVA granulator with uniform drying effect, which can achieve the separation of EVA particles and water, facilitate full contact between hot air and materials, and improve the drying effect.

[0004] The technical solution adopted by this utility model is as follows: it includes a drying barrel, on which heating plates are arranged in an array, a hot air blower is provided on the upper surface of the drying barrel, a mounting box is provided on the drying barrel, a rotatable filter assembly is provided inside the drying barrel, a first motor for driving the rotatable filter assembly is installed on the upper surface of the drying barrel, a drying stirring assembly is provided on the drying barrel, the output end of the hot air blower is connected to the stirring assembly, and a second motor for driving the stirring assembly is provided on the upper surface of the mounting box.

[0005] Preferably, to facilitate the rotation of the rotating gear, the rotatable filter assembly includes a filter barrel and a rotating gear. The filter barrel is rotatably installed inside the drying barrel, and a discharge port is provided at the lower end of the filter barrel. The rotating gear is rotatably installed on the drying barrel and is connected to the output end of the first motor.

[0006] Preferably, in order to facilitate the rotation of the filter barrel, the filter barrel is provided with a toothed disc, and the rotating gear meshes with the toothed disc.

[0007] Preferably, to facilitate the rotation of the threaded rod, the stirring assembly includes a slide rod, a rotating rod, and a threaded rod. The slide rod is fixedly installed inside the drying barrel, the threaded rod is rotatably installed inside the drying barrel, the rotating rod is rotatably installed on the drying barrel, the rotating rod is located inside the filter barrel, the rotating rod is fixedly connected to the output end of the second motor, and stirring blades arranged in an array are connected to the rotating rod.

[0008] Preferably, in order to facilitate the linkage between the threaded rod and the rotating rod, a connecting gear is fixedly installed on the threaded rod and the rotating rod. The connecting gear is located inside the mounting box, and a chain meshes between the connecting gears.

[0009] Preferably, in order to facilitate the adjustment of the position of the hot air pipe, a first slider is threadedly connected to the threaded rod, a second slider is inserted into the slider, a hot air pipe is connected between the first slider and the second slider, one end of the hot air pipe is connected to an air inlet pipe, the other end of the air inlet pipe is connected to the output end of the hot air blower, the hot air pipe is sleeved on the filter barrel, and the hot air pipe has air blowing holes arranged in an array.

[0010] Preferably, in order to facilitate the addition of materials into the filter barrel, the drying barrel is provided with a feed inlet on one side of the mounting box.

[0011] Preferably, in order to facilitate the drainage of water from the inside of the drying drum, the drying drum is provided with a drain pipe.

[0012] The beneficial effects of this utility model are: by using a rotatable filter assembly, a stirring assembly, a hot air blower, a first motor, and a second motor, the filter barrel and the stirring blades can rotate in opposite directions, thereby making the material more thoroughly stirred, separating water from the material, and at the same time, the position of the blowing pipe can be flexibly adjusted, so as to facilitate full contact between the hot air and the material and improve the drying effect. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the present invention from the left side view.

[0014] Figure 2 This is a structural schematic diagram of the present invention from the right side view.

[0015] Figure 3 This is a structural schematic diagram of the present invention from a downward viewing angle.

[0016] Figure 4 This is a cross-sectional view of the present invention.

[0017] Figure 5 This is a schematic diagram of the rotatable filter assembly of this utility model.

[0018] Figure 6 This is a schematic diagram of the stirring assembly of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Drying drum; 2. Heating plate; 3. Hot air blower; 4. Mounting box; 5. Rotatable filter assembly; 501. Filter drum; 502. Rotating gear; 503. Discharge port; 504. Gear disc; 6. First motor; 7. Stirring assembly; 701. Slide rod; 702. Rotating rod; 703. Threaded rod; 704. Stirring blade; 705. Connecting gear; 706. Chain; 707. First slider; 708. Second slider; 709. Hot air pipe; 710. Air inlet pipe; 711. Air blowing hole; 8. Second motor; 9. Feed inlet; 10. Drain pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0021] like Figures 1-6 As shown, this embodiment provides a blower drying device for an underwater EVA granulator with uniform drying effect, including a drying barrel 1. The drying barrel 1 is equipped with heating plates 2 arranged in an array. The heating plates 2 can heat the material inside the drying barrel 1, thereby facilitating the drying of the material. A hot air blower 3 is provided on the upper surface of the drying barrel 1. An installation box 4 is provided on the drying barrel 1. A rotatable filter assembly 5 is provided inside the drying barrel 1. A first motor 6 for driving the rotatable filter assembly 5 is installed on the upper surface of the drying barrel 1. A drying stirring assembly 7 is provided on the drying barrel 1. The stirring assembly 7 facilitates the stirring of the material, can separate water from EVA particles, and can dry the EVA particles with hot air, thereby improving the drying effect. The output end of the hot air blower 3 is connected to the stirring assembly 7, which can make the rotation direction of the filter barrel 501 and the stirring blade 704 opposite, thereby making the material more thoroughly stirred, separating water from the material, and improving the drying effect. A second motor 8 for driving the stirring assembly 7 is provided on the upper surface of the installation box 4.

[0022] The rotatable filter assembly 5 includes a filter barrel 501 and a rotating gear 502. The filter barrel 501 is rotatably installed inside the drying barrel 1. The lower end of the filter barrel 501 is provided with a discharge port 503. The rotating gear 502 is rotatably installed on the drying barrel 1 and is connected to the output end of the first motor 6. The filter barrel 501 is provided with a toothed disc 504. The rotating gear 502 meshes with the toothed disc 504. When the first motor 6 rotates, the rotating gear 502 rotates, the toothed disc 504 rotates, and the filter barrel 501 rotates, thereby accelerating the separation of water and EVA particles.

[0023] The stirring assembly 7 includes a slide rod 701, a rotating rod 702, and a threaded rod 703. The slide rod 701 is fixedly installed inside the drying drum 1, the threaded rod 703 is rotatably installed inside the drying drum 1, and the rotating rod 702 is rotatably installed on the drying drum 1. The rotating rod 702 is located inside the filter tank 501 and is fixedly connected to the output end of the second motor 8. An array of stirring blades 704 are connected to the rotating rod 702. Connecting gears 705 are fixedly installed on the threaded rod 703 and the rotating rod 702. The connecting gears 705 are located inside the mounting box 4, and a chain 706 meshes between the connecting gears 705. A first slider 707 is threadedly connected to the threaded rod 703, and a second slider 708 is inserted into the slide rod 701. A hot air pipe 709 connects the first slider 707 and the second slider 708. When the second motor 8 rotates, the rotating rod 702 rotates, the connecting gear 705 rotates, and through the chain 706, the other connecting gear... When wheel 705 rotates, threaded rod 703 rotates, and first slider 707 moves. The first slider 707 is limited by slide rod 701, causing hot air pipe 709 to move up and down. One end of hot air pipe 709 is connected to air inlet pipe 710, and the other end of air inlet pipe 710 is connected to the output end of hot air blower 3. Hot air pipe 709 is fitted onto filter barrel 501. Hot air pipe 709 has arrayed air holes 711 that direct the hot air generated by hot air blower 3 through air inlet pipe 711. 10. Hot air is transferred to the inside of the hot air pipe 709 and blown towards the filter barrel 501 through the air blowing hole 711, which facilitates the drying of EVA particles. The drying barrel 1 is provided with a feed port 9 on one side of the mounting box 4. The material is added to the inside of the filter barrel 501 through the feed port 9, and the water is separated from the EVA particles through the filter barrel 501. The drying barrel 1 is provided with a drain pipe 10, through which the water inside the drying barrel 1 is discharged from the drying barrel 1.

[0024] In use, the material is added to the filter barrel 501 through the feed inlet 9, and the water and EVA particles are separated by the filter barrel 501. The water in the drying barrel 1 is discharged through the drain pipe 10. The second motor 8 is started, the rotating rod 702 rotates, and the stirring blade 704 rotates, which facilitates the stirring of the material. The connecting gear 705 rotates, and through the chain 706, another connecting gear 705 rotates. The threaded rod 703 rotates, and the first slider 707 moves. The sliding rod 701 limits the first slider 707, causing the hot air pipe 709 to move up and down. The hot air fan 3 is started, and hot air is transferred to the hot air pipe 709 through the air inlet pipe 710. The hot air is blown towards the filter barrel 501 through the air blowing hole 711, which facilitates the drying of the EVA particles. At the same time, the first motor 6 is started, the rotating gear 502 rotates, the gear plate 504 rotates, and the filter barrel 501 rotates, which accelerates the separation of water and EVA particles.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A forced-air drying device for an underwater EVA granulator with uniform drying effect, comprising a drying barrel (1), wherein heating plates (2) are arranged in an array on the drying barrel (1), a hot air blower (3) is provided on the upper surface of the drying barrel (1), and a mounting box (4) is provided on the drying barrel (1), characterized in that: The drying barrel (1) is equipped with a rotatable filter assembly (5) inside. A first motor (6) for driving the rotatable filter assembly (5) is installed on the upper surface of the drying barrel (1). A drying stirring assembly (7) is provided on the drying barrel (1). The output end of the hot air blower (3) is connected to the stirring assembly (7). A second motor (8) for driving the stirring assembly (7) is provided on the upper surface of the mounting box (4).

2. The forced-air drying device for the EVA underwater granulator with uniform drying effect according to claim 1, characterized in that: The rotatable filter assembly (5) includes a filter barrel (501) and a rotating gear (502). The filter barrel (501) is rotatably installed inside the drying barrel (1). The filter barrel (501) has a discharge port (503) at its lower end. The rotating gear (502) is rotatably installed on the drying barrel (1) and is connected to the output end of the first motor (6).

3. The blower drying device for the EVA underwater granulator with uniform drying effect according to claim 2, characterized in that: The filter barrel (501) is provided with a toothed disc (504), and the rotating gear (502) meshes with the toothed disc (504).

4. The blower drying device for the EVA underwater granulator with uniform drying effect according to claim 2, characterized in that: The stirring assembly (7) includes a slide rod (701), a rotating rod (702), and a threaded rod (703). The slide rod (701) is fixedly installed inside the drying barrel (1). The threaded rod (703) is rotatably installed inside the drying barrel (1). The rotating rod (702) is rotatably installed on the drying barrel (1). The rotating rod (702) is located inside the filter barrel (501). The rotating rod (702) is fixedly connected to the output end of the second motor (8). An array of stirring blades (704) are connected to the rotating rod (702).

5. The blower drying device for the EVA underwater granulator with uniform drying effect according to claim 4, characterized in that: A connecting gear (705) is fixedly installed on the threaded rod (703) and the rotating rod (702). The connecting gear (705) is located inside the mounting box (4), and a chain (706) meshes between the connecting gears (705).

6. The blower drying device for the EVA underwater granulator with uniform drying effect according to claim 5, characterized in that: The threaded rod (703) is threaded with a first slider (707), and the slider (701) is inserted with a second slider (708). A hot air pipe (709) is connected between the first slider (707) and the second slider (708). One end of the hot air pipe (709) is connected to an air inlet pipe (710), and the other end of the air inlet pipe (710) is connected to the output end of the hot air blower (3). The hot air pipe (709) is sleeved on the filter barrel (501), and the hot air pipe (709) has air holes (711) arranged in an array.

7. The forced-air drying device for the underwater EVA granulator with uniform drying effect according to claim 1, characterized in that: The drying drum (1) is provided with a feed inlet (9) on one side of the mounting box (4).

8. The blower drying device for the underwater EVA granulator with uniform drying effect according to claim 1, characterized in that: The drying drum (1) is equipped with a drain pipe (10).

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