An environmentally friendly recycled plastic granule preheating device

Abstract

The utility model discloses an environmentally friendly recycled plastic granule preheating device, which belongs to the technical field of recycled plastic granule production, and comprises a heating box, a bracket located below the heating box for fixedly supporting the heating box, and a discharge port opened at the middle position of the bottom of the heating box. The utility model is provided with an inner cylinder vertically arranged at the middle position inside the heating box, and the heating tube is coiled inside the inner cylinder, and the spiral blade is located between the heating box and the inner cylinder, and a spiral conveying rod is rotatably installed inside the inner cylinder, so that during the preheating process of the device, the plastic granules fall from the top of the heating box to the bottom of the heating box for single preheating, and then the rotation of the spiral conveying rod is controlled by a motor to convey the plastic granules from bottom to top, and the preheating operation is performed again, so as to control the preheating temperature according to the use requirements, and the practicability is higher. In addition, the reverse rotation of the spiral conveying rod is controlled during the discharge, so that the discharge of the material can be accelerated, and the practicability is higher.

Description

Technical Field

[0001] The utility model relates to a preheating device, in particular to an environmentally friendly recycled plastic particle preheating device, belonging to the technical field of recycled plastic particle production. Background Art

[0002] In the prior art, a utility model with application number 202222083105.0 discloses a recycled plastic particle preheating device. In order to solve the problem that plastic particles are directly poured into the device, resulting in a large number of plastic particles entering the device at one time, which easily causes the recycled plastic particles to pile up together, resulting in uneven preheating of the recycled plastic particles and affecting the preheating effect thereof, the recycled plastic particles poured into the heating box are divided into several portions by multiple partition plates, so as to preheat the recycled plastic particles in batches and avoid excessive accumulation of recycled plastic particles, resulting in uneven preheating. By evenly arranging multiple guide plates in an S shape inside the heating box, the recycled plastic particles can pass through the multiple guide plates in sequence from top to bottom, thereby increasing the contact area and duration between the recycled plastic particles and the guide plates, so that the recycled plastic particles can be better heated and the preheating effect is improved.

[0003] Similar to the above application, there are still some shortcomings:

[0004] The plastic particles fall freely from the top to the bottom of the heating box and can only be preheated once when falling. When the preheating temperature requirement is high, the device cannot meet the preheating requirement and has low practicality.

[0005] Therefore, an environmentally friendly recycled plastic granule preheating device is designed to optimize the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide an environmentally friendly recycled plastic particle preheating device, by vertically arranging an inner cylinder at the middle position inside the heating box, and the heating tube is coiled inside the inner cylinder, and the spiral blade is located between the heating box and the inner cylinder, and a spiral conveying rod is rotatably installed inside the inner cylinder, so that during the preheating process of the device, the plastic particles fall from the top of the heating box to the bottom of the heating box for a single preheating, and then the rotation of the spiral conveying rod is controlled by a motor to convey the plastic particles from bottom to top and perform the preheating operation again, so as to control the preheating temperature according to the use requirements, and the utility model is more practical. In addition, the reverse rotation of the spiral conveying rod is controlled during discharge, so that the discharge of the material can be accelerated, and the utility model is more practical. By arranging a stirring mechanism composed of a shaft rod, a stirring rod and a driving assembly inside the heating box, and the driving wheel, the driven wheel and the belt form the driving assembly, the rotation of the stirring mechanism can be controlled simultaneously during the rotation of the spiral conveying rod, thereby increasing the flow rate of the plastic particles and improving the preheating effect.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] An environmentally friendly recycled plastic granule preheating device comprises a heating box, a bracket located below the heating box and fixedly supporting the heating box, a discharge port opened at the middle position of the bottom of the heating box, a switch valve installed on the top of the discharge port, and a feed port opened on the side of the top of the heating box, an inner cylinder is vertically arranged at the middle position inside the heating box, a heating tube is coiled inside the inner cylinder, a spiral blade is arranged between the outer side of the inner cylinder and the inner wall of the heating box, a spiral conveying rod is rotatably installed inside the inner cylinder, a motor is installed on the top of the heating box, and the output end of the motor is connected to the top of the spiral conveying rod.

[0009] Preferably: a guide plate is obliquely provided at the top of the heating box and below the feed inlet, and the bottom end of the guide plate extends to the top of the inner cylinder.

[0010] Preferably: a shaft is installed on one side of the interior of the heating box for vertical rotation, the shaft passes through the spiral blades, stirring rods are evenly arranged on the outside of the shaft, and a driving component for controlling the horizontal rotation of the shaft is arranged on the top of the shaft.

[0011] Preferably, the driving assembly comprises a driving wheel, a driven wheel and a belt, the driving wheel is mounted on the top end of the spiral conveying rod, the driven wheel is mounted on the top end of the shaft, and a belt is arranged between the driving wheel and the driven wheel.

[0012] Preferably: a protective shell is provided on the inner top of the heating box, and the driving wheel, the driven wheel and the belt are all located inside the protective shell.

[0013] Preferably: a transparent window is vertically opened on the outer side of the heating box, and scale lines are arranged on the outer side of the transparent window.

[0014] Preferably, annular protrusions are evenly arranged on the outer side of the inner cylinder along the height direction.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides an environmentally friendly recycled plastic granule preheating device, in which an inner cylinder is vertically arranged at the middle position inside the heating box, and the heating tube is coiled inside the inner cylinder, and the spiral blade is located between the heating box and the inner cylinder, and a spiral conveying rod is rotatably installed inside the inner cylinder, so that during the preheating process of the device, the plastic granules fall from the top of the heating box to the bottom of the heating box for a single preheating, and then the motor is used to control the rotation of the spiral conveying rod to convey the plastic granules from bottom to top, and the preheating operation is performed again, so that the preheating temperature can be controlled according to the use requirements, and the practicability is higher. In addition, the reverse rotation of the spiral conveying rod is controlled during the discharge, so that the discharge of the material can be accelerated, and the practicability is higher.

[0017] By arranging a stirring mechanism consisting of a shaft rod, a stirring rod and a driving assembly inside the heating box, and a driving wheel, a driven wheel and a belt forming a driving assembly, the rotation of the stirring mechanism can be controlled simultaneously during the rotation of the spiral conveying rod, thereby increasing the flow rate of the plastic particles and improving the preheating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front cross-sectional view of the utility model;

[0019] Figure 2 This is a partial structural diagram of the top of the heating box of the utility model;

[0020] Figure 3 It is the front view of the utility model;

[0021] Figure 4 This is an inner cylinder diagram of the present utility model.

[0022] In the figure: 1. Heating box; 2. Bracket; 3. Discharge port; 4. Switch valve; 5. Feed port; 6. Inner cylinder; 7. Heating tube; 8. Spiral blade; 9. Motor; 10. Screw conveying rod; 11. Shaft; 12. Stirring rod; 13. Driving assembly; 14. Guide plate; 15. Protective shell; 16. Driving wheel; 17. Driven wheel; 18. Belt. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the utility model more clear and specific to those skilled in the art, the utility model is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the utility model are not limited thereto.

[0024] like Figure 1-Figure 4 As shown, this embodiment provides an environmentally friendly recycled plastic particle preheating device, including a heating box 1, a bracket 2 located below the heating box 1 and fixedly supporting the heating box 1, a discharge port 3 opened at the middle position of the bottom of the heating box 1, a switch valve 4 installed on the top of the discharge port 3, and a feed port 5 opened on the top side of the heating box 1, an inner cylinder 6 is vertically arranged at the middle position inside the heating box 1, a heating tube 7 is coiled inside the inner cylinder 6, a spiral blade 8 is arranged between the outer side of the inner cylinder 6 and the inner wall of the heating box 1, a spiral conveying rod 10 is rotatably installed inside the inner cylinder 6, a motor 9 is installed on the top of the heating box 1, and the output end of the motor 9 is connected to the top of the spiral conveying rod 10.

[0025] The overall working principle is as follows: when in use, first turn on the power of the heating tube 7 to heat the inside of the heating box 1, then inject the plastic particles from the feed port 5, the material moves downward along the spiral blade 8, and at the same time, part of the material falls into the inner tube 6 and moves downward along the spiral conveying rod 10. After the material falls into the bottom of the heating box 1, the material is heated once, and the switch valve 4 can be opened to directly discharge the plastic. If the preheating demand is high and the single preheating cannot meet the demand, the motor 9 is started to control the rotation of the spiral blade 8 to convey the plastic particles from the bottom of the inner tube 6 upward. During the conveying process, a second preheating is performed, and then the plastic particles are discharged from the top of the inner tube 6, and then flow along the spiral blade 8 to the bottom of the heating box 1 for three preheatings to meet the use requirements. At the same time, the preheating temperature can be regulated by controlling the conveying rate. When the particles are discharged, the reverse rotation of the spiral conveying rod 10 is controlled to speed up the discharge of the particles.

[0026] In this embodiment, a guide plate 14 is obliquely provided at the top of the heating box 1 and below the feed port 5 , and the bottom end of the guide plate 14 extends to the top of the inner tube 6 .

[0027] Local working principle: When the plastic particles enter the interior of the heating box 1, part of the material flows downward along the guide plate 14 and enters the interior of the inner cylinder 6 to ensure uniform preheating.

[0028] In this embodiment, a shaft 11 is vertically rotatably installed on one side of the interior of the heating box 1. The shaft 11 passes through the spiral blade 8. Stirring rods 12 are evenly arranged on the outside of the shaft 11. A driving assembly 13 for controlling the horizontal rotation of the shaft 11 is provided on the top of the shaft 11.

[0029] Partial working principle: During the preheating process, the driving assembly 13 can be used to control the rotation of the shaft 11, and the stirring rod 12 on the shaft 11 accelerates the flow of particles and improves the preheating effect.

[0030] In this embodiment, the driving assembly 13 includes a driving wheel 16, a driven wheel 17 and a belt 18. The driving wheel 16 is installed at the top of the spiral conveying rod 10, the driven wheel 17 is installed at the top of the shaft 11, and the belt 18 is arranged between the driving wheel 16 and the driven wheel 17.

[0031] Partial working principle: When the motor 9 is started, it drives the driving wheel 16 to rotate, and the driving wheel 16 cooperates with the belt 18 and the driven wheel 17 to control the rotation of the shaft 11.

[0032] In this embodiment, a protective shell 15 is provided at the inner top of the heating box 1 , and the driving wheel 16 , the driven wheel 17 and the belt 18 are all located inside the protective shell 15 .

[0033] Partial working principle: The use of the protective shell 15 can ensure the stability of the transmission.

[0034] In this embodiment, a transparent window is vertically opened on the outer side of the heating box 1, and scale lines are arranged on the outer side of the transparent window.

[0035] Partial working principle: During the feeding process, the amount of material inside the heating box 1 can be observed through the transparent window.

[0036] In this embodiment, annular protrusions are evenly arranged on the outer side of the inner cylinder 6 along the height direction.

[0037] Local working principle: the surface area of ​​the outer side of the inner tube 6 is increased, and the preheating effect is better when the particles are in contact with the surface of the inner tube 6.

[0038] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. An environmentally friendly recycled plastic granule preheating device, comprising a heating box (1), a bracket (2) located below the heating box (1) for fixing and supporting the heating box (1), a discharge port (3) opened at the middle position of the bottom of the heating box (1), a switch valve (4) installed at the top of the discharge port (3), and a feed port (5) opened at the side of the top of the heating box (1), characterized in that: An inner cylinder (6) is vertically arranged at the middle position inside the heating box (1), a heating tube (7) is coiled inside the inner cylinder (6), a spiral blade (8) is arranged between the outer side of the inner cylinder (6) and the inner wall of the heating box (1), a spiral conveying rod (10) is rotatably installed inside the inner cylinder (6), a motor (9) is installed on the top of the heating box (1), and the output end of the motor (9) is connected to the top of the spiral conveying rod (10).

2. The environmentally friendly recycled plastic particle preheating device according to claim 1 is characterized in that: A guide plate (14) is obliquely provided at the top of the heating box (1) and below the feed port (5), and the bottom end of the guide plate (14) extends to the top of the inner cylinder (6).

3. The environmentally friendly recycled plastic particle preheating device according to claim 2 is characterized in that: A shaft (11) is vertically rotatably installed on one side of the interior of the heating box (1), the shaft (11) passes through the spiral blade (8), stirring rods (12) are evenly arranged on the outside of the shaft (11), and a driving component (13) for controlling the horizontal rotation of the shaft (11) is provided on the top of the shaft (11).

4. The environmentally friendly recycled plastic granule preheating device according to claim 3 is characterized in that: The driving assembly (13) comprises a driving wheel (16), a driven wheel (17) and a belt (18), wherein the driving wheel (16) is mounted on the top end of the screw conveying rod (10), the driven wheel (17) is mounted on the top end of the shaft rod (11), and the belt (18) is arranged between the driving wheel (16) and the driven wheel (17).

5. The environmentally friendly recycled plastic granule preheating device according to claim 4 is characterized in that: A protective shell (15) is provided at the inner top of the heating box (1), and a driving wheel (16), a driven wheel (17) and a belt (18) are all located inside the protective shell (15).

6. The environmentally friendly recycled plastic granule preheating device according to claim 1, characterized in that: A transparent window is vertically opened on the outer side of the heating box (1), and scale lines are arranged on the outer side of the transparent window.

7. The environmentally friendly recycled plastic granule preheating device according to claim 1, characterized in that: The outer side of the inner cylinder (6) is evenly provided with annular protrusions along the height direction.

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