Plastic granulator

Abstract

The plastic granulator comprises a machine body and a water tank arranged at one end of the machine body, the outer surface of the machine body is fixedly connected with an air duct in a sleeved mode, the upper surface of the water tank is fixedly connected with a mounting cover, an air exhaust mechanism is jointly installed between the air duct and the mounting cover, a filter assembly is installed in the air exhaust mechanism, and the filter assembly is fixedly connected with the machine body. A limiting assembly matched with the filtering assembly is installed on the front face of the air exhaust mechanism. According to the utility model, through the arrangement of the mounting cover and the exhaust mechanism, smoke generated by moisture evaporation after cold water is heated can be sucked by the exhaust fan, is finally collected into the guide pipe through the gas collecting cover and the branch pipe, and enters the air duct, so that a certain waste heat utilization effect is realized, and meanwhile, the smoke is absorbed, so that the waste heat utilization efficiency is improved. And flue gas is prevented from being directly discharged into external air and drifting around, and pollution to the working environment is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic granulation, in particular to a plastic granulator. Background Art

[0002] The plastic granulator is composed of a screw feeder, an extruder, a granulator, a transmission system and a heating and cooling system. It is a unit composed of a series of machines. The plastic raw materials are heated and melted by the screw extruder, and then flow out of the extruder head in the form of strips and enter the cooling water tank for water cooling. After water cooling, it hardens and finally undergoes granulation processing to obtain the required plastic particles.

[0003] However, the existing granulators generally have a disadvantage when using water cooling: when cooling the extruded high-temperature strip plastic, part of the water in the cold water will evaporate after being heated, generating a large amount of harmful gases and smoke, and they are generally not equipped with a mechanism to absorb the smoke. The smoke is directly discharged into the external air and drifts around, causing certain pollution to the working environment. The staff working in this environment will also be disturbed by the smoke. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a plastic granulator.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic granulator, including a machine body and a water tank arranged at one end of the machine body, the outer surface of the machine body is sleeved with an air duct fixedly connected, the upper surface of the water tank is fixedly connected with a mounting cover, and an exhaust mechanism is installed between the air duct and the mounting cover, a filter assembly is installed inside the exhaust mechanism, and a limit assembly matching the filter assembly is installed on the front of the exhaust mechanism.

[0006] Furthermore, the exhaust mechanism includes ducts respectively fixedly connected to one end of the outer surface of the air duct, an exhaust fan is fixedly installed at one end of the duct, an air inlet pipe of the exhaust fan is fixedly connected to a connecting sleeve, a lower surface of the connecting sleeve is fixedly connected to a plurality of branch pipes, and one ends of the plurality of branch pipes extend through and extend to the bottom of the mounting cover and are fixedly connected to an air collecting hood.

[0007] Furthermore, the filter assembly includes three through-hole plates which are fixedly connected to the inner wall of the branch pipe in sequence from top to bottom, and the opposite sides of every two of the through-hole plates are abutted against an installation frame, the inner sides of the multiple installation frames are fixedly connected with absorbent sponges, and the outer surfaces of the multiple installation frames are slidably connected to the inner wall of the branch pipe.

[0008] Furthermore, the limiting assembly includes L-shaped rotating rods symmetrically rotatably connected to the two ends of the front side of the installation frame and clamps symmetrically fixedly connected to the front side of the air duct, and the outer surfaces of the two L-shaped rotating rods are respectively abutted against the inner sides of the corresponding clamps.

[0009] Furthermore, water pipes are symmetrically and fixedly connected to both sides of the outer surface of the water tank, and a circulating fan is fixedly installed on the upper surface of the air duct.

[0010] Furthermore, an extrusion head is fixedly installed at one end of the machine body, and the extrusion head is located above the water tank. A feed hopper is fixedly connected to the upper surface of the machine body, and the top of the feed hopper extends through to the outside of the air duct.

[0011] Furthermore, an inclined plate is fixedly connected to one side of the outer surface of the water tank, a fixed seat is symmetrically fixedly connected to the upper surface of the inclined plate, and guide rollers are rotatably connected to opposite sides of the two fixed seats.

[0012] The utility model has the following beneficial effects:

[0013] 1. When the utility model is in use, the plastic granulator, through the installation cover and the exhaust mechanism, the smoke generated by the evaporation of cold water when heated will be attracted by the exhaust fan, and finally collected into the duct through the gas collecting cover and the branch pipe, and enters the interior of the air duct, achieving a certain waste heat utilization effect. At the same time, it absorbs the smoke to avoid the smoke being directly discharged into the external air and drifting around, thereby preventing the working environment from being polluted.

[0014] 2. When the utility model is in use, the plastic granulator, through the provided filtering assembly and limiting assembly, when the smoke enters the branch pipe, the smoke with moisture will be adsorbed and dried by the water-absorbing sponge, and then enter the air duct for reuse; when the moisture absorbed by the water-absorbing sponge reaches a certain amount, the through-hole plate will squeeze it, squeeze out the moisture and let it fall back into the water tank, thus preventing the moisture from entering the air duct and damaging the circulating fan; at the same time, when the water-absorbing sponge needs to be replaced, it is only necessary to rotate the L-shaped rotating rod to release the abutment between the L-shaped rotating rod and the clamp, and then take out the installation frame, which is relatively simple to operate and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the branch pipe and the filter assembly of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the branch pipe and the limiting assembly of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the water tank of the utility model.

[0019] Legend:

[0020] 1. Machine body; 2. Feed hopper; 3. Circulation fan; 4. Air duct; 5. Extruder; 6. Water tank; 7. Inclined plate; 8. Fixed seat; 9. Guide roller; 10. Mounting cover; 11. Conduit; 12. Exhaust fan; 13. Connecting sleeve; 14. Branch pipe; 15. Air collecting cover; 16. Mounting frame; 17. Water-absorbing sponge; 18. Through-hole plate; 19. Clamp; 20. L-shaped rotating rod. DETAILED DESCRIPTION

[0021] Figures 1 to 4 As shown, it relates to a plastic granulator, including a body 1 and a water tank 6 arranged at one end of the body 1, wherein water pipes are symmetrically fixedly connected to the outer surface of the water tank 6 on both sides, which are respectively used for water inlet and water outlet of the water tank 6, and an air duct 4 is fixedly connected to the outer surface of the body 1, wherein a circulating fan 3 is fixedly installed on the upper surface of the air duct 4, and the air inlet of the circulating fan 3 is fixedly installed with an external heating mechanism. The heating mechanism is one of the common components in the granulator unit, and the circulating fan 3 is a common mature technology in the prior art, which will not be described in detail here. The upper surface of the water tank 6 is fixedly connected to A mounting cover 10 is connected, and an exhaust mechanism is installed between the air duct 4 and the mounting cover 10. A filter component is installed inside the exhaust mechanism, and a limit component matching the filter component is installed on the front of the exhaust mechanism, wherein a spiral extrusion blade is rotatably connected inside the body 1, and a servo motor connected to the spiral extrusion blade is fixedly installed at one end of the body 1, an extrusion head 5 is fixedly installed at one end of the body 1, and the extrusion head 5 is above the water tank 6, and a feed hopper 2 is fixedly connected to the upper surface of the body 1, and the top of the feed hopper 2 extends through to the outside of the air duct 4.

[0022] The exhaust mechanism includes a duct 11 fixedly connected to one end of the outer surface of the air duct 4, one end of the duct 11 is fixedly installed with an exhaust fan 12, the air inlet pipe of the exhaust fan 12 is fixedly connected with a connecting sleeve 13, the lower surface of the connecting sleeve 13 is fixedly connected with multiple branch pipes 14, and one end of the multiple branch pipes 14 extends to the bottom of the installation cover 10 and is fixedly connected with an air collecting hood 15, the air collecting hood 15 can absorb the smoke diffused in the water tank 6 into the inside of the branch pipe 14, and the exhaust fan 12 can extract the smoke inside the branch pipe 14 and discharge it into the duct 11, and finally enter the inside of the air duct 4, heat the body 1, and achieve the effect of waste heat utilization.

[0023] The filter assembly includes three through-hole plates 18 fixedly connected to the inner wall of the branch pipe 14 in sequence from top to bottom, and the opposite side of each two through-hole plates 18 is abutted against the mounting frame 16, the inner sides of the multiple mounting frames 16 are fixedly connected with water-absorbing sponges 17, and the outer surfaces of the multiple mounting frames 16 are slidably connected to the inner wall of the branch pipe 14. After the water-absorbing sponge 17 absorbs moisture in the flue gas, its volume will expand. When it absorbs more moisture, its volume expands to abut against the through-hole plate 18. At this time, the through-hole plate 18 will generate an extrusion force on it, thereby squeezing out the water.

[0024] The limiting assembly includes L-shaped rotating rods 20 which are symmetrically rotated and connected to the two ends of the front face of the installation frame 16 and a clamp 19 which is symmetrically fixed and connected to the front face of the air duct 4. The outer surfaces of the two L-shaped rotating rods 20 are respectively abutted against the inner sides of the corresponding clamps 19. When the absorbent sponge 17 needs to be replaced, it is only necessary to rotate the L-shaped rotating rod 20 to release the abutment between the L-shaped rotating rod 20 and the clamp 19, and then the installation frame 16 can be pulled outward to pull it out. Accordingly, the installation frame 16 is inserted into the branch pipe 14, and the L-shaped rotating rod 20 is rotated in the opposite direction, and the outer surface of the L-shaped rotating rod 20 is abutted against the clamp 19, so that the position of the installation frame 16 can be locked. The operation is relatively simple and practical.

[0025] An inclined plate 7 is fixedly connected to one side of the outer surface of the water tank 6, and a fixed seat 8 is symmetrically fixedly connected to the upper surface of the inclined plate 7. The opposite sides of the two fixed seats 8 are connected to guide rollers 9 for common rotation. After the strip plastic extruded in the machine body 1 is cooled by the water flow inside the water tank 6, its end is stretched onto the inclined plate 7 and placed on the guide roller 9, and finally passes through the rotating roller of the external pelletizing mechanism for pelletizing. Among them, the pelletizing mechanism belongs to the common well-known technology in the field of pelletizing machines and is a component of the pelletizing unit, which will not be described in detail here.

[0026] When using the plastic granulator, first add the raw material from the feed hopper 2. After the raw material enters the body 1, it is pushed by the spiral extrusion blades and heated by the hot air discharged by the circulating fan 3, and finally extruded from the extrusion head 5. The extruded strip plastic will enter the water tank 6 for cooling. When the cold water is heated, the water evaporates and the smoke generated will be attracted by the exhaust fan 12, and finally collected into the duct 11 through the air collecting hood 15 and the branch pipe 14, and enter the interior of the air duct 4, achieving a certain waste heat utilization effect. At the same time, it absorbs the smoke to prevent the smoke from being directly discharged into the external air and drifting around, preventing It pollutes the working environment. When the smoke enters the branch pipe 14, the smoke containing moisture will be dried by the adsorption of the water-absorbing sponge 17, and then enter the air duct 4 for reuse. When the moisture absorbed by the water-absorbing sponge 17 reaches a certain amount, the through-hole plate 18 will squeeze it, squeeze out the moisture and let it fall back into the water tank 6, avoiding the moisture from entering the air duct 4 and damaging the circulation fan 3. At the same time, when the water-absorbing sponge 17 needs to be replaced, it is only necessary to rotate the L-shaped rotating rod 20 to release the abutment between the L-shaped rotating rod 20 and the clamp 19, and then take out the installation frame 16. The operation is relatively simple and practical.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plastic granulator, comprising a body (1) and a water tank (6) arranged at one end of the body (1), characterized in that: The outer surface of the machine body (1) is sleeved with an air duct (4) fixedly connected thereto, the upper surface of the water tank (6) is fixedly connected thereto with a mounting cover (10), and an air extraction mechanism is installed between the air duct (4) and the mounting cover (10), a filter assembly is installed inside the air extraction mechanism, and a limit assembly matching the filter assembly is installed on the front of the air extraction mechanism.

2. A plastic granulator according to claim 1, characterized in that: The air extraction mechanism comprises a duct (11) fixedly connected to one end of the outer surface of the air duct (4), an exhaust fan (12) is fixedly installed on one end of the duct (11), an air inlet pipe of the exhaust fan (12) is fixedly connected to a connecting sleeve (13), a lower surface of the connecting sleeve (13) is fixedly connected to a plurality of branch pipes (14), and one end of each of the plurality of branch pipes (14) extends through and extends to the bottom of the installation cover (10) and is fixedly connected to an air collecting cover (15).

3. A plastic granulator according to claim 2, characterized in that: The filter assembly comprises three through-hole plates (18) which are fixedly connected to the inner wall of the branch pipe (14) in sequence from top to bottom, and the opposite sides of each two through-hole plates (18) are abutted against a mounting frame (16), the inner sides of the plurality of mounting frames (16) are fixedly connected with a water-absorbing sponge (17), and the outer surfaces of the plurality of mounting frames (16) are slidably connected to the inner wall of the branch pipe (14).

4. A plastic granulator according to claim 3, characterized in that: The limiting assembly comprises L-shaped rotating rods (20) symmetrically connected to the two ends of the front face of the installation frame (16) and a clamp (19) symmetrically fixedly connected to the front face of the air duct (4), and the outer surfaces of the two L-shaped rotating rods (20) are respectively in contact with the inner sides of the corresponding clamps (19).

5. A plastic granulator according to claim 1, characterized in that: Water pipes are symmetrically and fixedly connected to the outer surface of the water tank (6) on both sides, and a circulating fan (3) is fixedly installed on the upper surface of the air duct (4).

6. A plastic granulator according to claim 1, characterized in that: An extrusion head (5) is fixedly mounted on one end of the machine body (1), and the extrusion head (5) is located above the water tank (6). The upper surface of the machine body (1) is fixedly connected to a feed hopper (2), and the top of the feed hopper (2) extends through to the outside of the air duct (4).

7. A plastic granulator according to claim 1, characterized in that: An inclined plate (7) is fixedly connected to one side of the outer surface of the water tank (6), a fixed seat (8) is symmetrically fixedly connected to the upper surface of the inclined plate (7), and a guide roller (9) is rotatably connected to the opposite sides of the two fixed seats (8).

Images