PE pipeline raw material drying device

Abstract

The utility model relates to a PE (Poly Ethylene) pipeline raw material drying device which comprises a barrel body, a turning piece and a ventilating piece, the lower end of the cylinder body is connected with a discharging hopper; air outlet holes I are uniformly distributed in a top plate; the turning part comprises a sleeve and a rotating shaft, the sleeve is coaxially arranged in the barrel, the lower end of the outer wall of the sleeve is fixedly connected with the inner wall of the barrel through a plurality of connecting rods, the rotating shaft is coaxially arranged in the sleeve, the upper end of the rotating shaft is connected with a motor, the motor drives the rotating shaft to rotate, the lower end of the rotating shaft extends into the discharging hopper, and the rotating shaft is fixedly sleeved with a spiral piece. The spiral piece is located in the sleeve, the two ends of the spiral piece extend out of the sleeve, a ventilation pipe arranged outside the sleeve in a sleeving mode is arranged between the sleeve and the barrel body, the ventilation pipe is a spiral pipe body, second air outlet holes are evenly distributed in the ventilation pipe, the upper end of the ventilation pipe is closed, and the lower end of the ventilation pipe is opened and communicated with a hot-air blower through a communication pipe. The polyethylene drying device solves the problem that polyethylene raw materials accumulated in the drying device cannot be in full contact with hot air in the drying device.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline production, in particular to a PE pipeline raw material drying device. Background Art

[0002] PE pipes refer to pipes made of polyethylene (PE) materials. They are modern plastic pipes widely used in water supply, drainage, gas, petroleum, chemical industry, communications and other fields. PE pipes have good compressive resistance, high tensile strength, excellent corrosion resistance, good flexibility and other characteristics; the main raw material for PE pipe production is polyethylene, and the polyethylene particles are dried under certain temperature, time and humidity conditions to remove moisture from the raw materials and ensure that the produced PE pipes have excellent performance, which is raw material drying;

[0003] The polyethylene raw materials entering the drying device tend to pile up together and cannot fully contact with the hot air entering the drying device, resulting in slow drying efficiency and easily causing uneven drying of the polyethylene raw materials, which in turn causes poor drying quality. Summary of the invention

[0004] The utility model provides a PE pipe material drying device to solve the problem that the polyethylene materials accumulated in the drying device cannot be fully contacted with the hot air in the drying device, and can improve the drying efficiency and the drying quality.

[0005] In order to solve the above problems, the technical solution of the utility model is:

[0006] A PE pipe raw material drying device comprises a cylinder, a feed hopper is arranged on the top plate of the cylinder, and also comprises a turning piece and a ventilation piece; the lower end of the cylinder is connected to a lower hopper, and the top plate is evenly provided with air outlet holes one; the turning piece comprises a sleeve and a rotating shaft, the sleeve is coaxially arranged in the cylinder, the lower end of the outer wall of the sleeve is fixedly connected to the inner wall of the cylinder via a plurality of connecting rods, the rotating shaft is coaxially arranged in the sleeve, the upper end of the rotating shaft is connected to a motor and driven to rotate by the motor, the lower end of the rotating shaft extends into the lower hopper, a spiral piece is fixedly arranged on the outer surface of the rotating shaft, the spiral piece is located in the sleeve, and both ends extend out of the sleeve respectively, a ventilation pipe is arranged between the sleeve and the cylinder and sleeved outside the sleeve, the ventilation pipe is a spiral pipe body fixedly connected to the cylinder, and air outlet holes two are evenly distributed on the ventilation pipe, the upper end of the ventilation pipe is closed, and the lower end is open and connected to a hot air blower through a connecting pipe.

[0007] Furthermore, the lower hopper is a hollow truncated cone that is larger at the top and smaller at the bottom and open at both ends. The lower end opening of the lower hopper is connected to a discharge door, and a plurality of supporting legs are provided on the outer wall of the lower hopper.

[0008] Furthermore, the lower end of the sleeve is flush with the lower end of the cylinder, and there is a distance between the upper end and the top plate of the cylinder. The outer edge of the spiral sheet slides in contact with the inner wall of the sleeve, and the spiral sheet has a right-handed rotation direction.

[0009] Furthermore, the motor is fixed on the outer top surface of the cylinder with the output end facing downward, and the upper end of the rotating shaft passes through the top plate of the cylinder and is fixedly connected to the output end of the motor; the hot air blower is fixed on the outer wall of the cylinder, and one end of the connecting pipe is connected to the open end of the ventilation pipe, and the other end passes through the peripheral wall of the cylinder and is connected to the output end of the hot air blower.

[0010] Furthermore, there is a distance between the outer wall of the sleeve and the ventilation pipe, and there is a distance between the inner wall of the cylinder and the ventilation pipe; the upper end of the outer wall of the ventilation pipe is fixedly connected to the inner wall of the cylinder via a cross bar, and the lower end of the peripheral wall of the ventilation pipe is fixedly connected to any connecting rod.

[0011] Furthermore, a material guide plate is provided at the upper end of the peripheral wall of the sleeve. The material guide plate is a truncated cone-shaped plate body. The material guide plate is fixed on the outside of the upper part of the sleeve through a circular hole opened in the middle. The material guide plate is higher than the upper end of the ventilation pipe, and the diameter of the lower end of the outer wall of the material guide plate is smaller than the distance between the outer wall of the sleeve and the ventilation pipe.

[0012] Furthermore, each of the second air outlet holes is provided with a filter, and a window is provided at the lower end of the peripheral wall of the cylinder.

[0013] Through the above technical solution, the beneficial effects of the utility model are:

[0014] The material turning piece of the utility model can drive the raw materials in the lower hopper to be discharged through the upper end of the sleeve for multiple times. The raw materials discharged through the sleeve can fall into the lower hopper again through the space between the sleeve and the cylinder body, thereby realizing the turning of the raw materials. In addition, in the process of the raw materials falling between the sleeve and the cylinder body, they can be more in contact with the hot air discharged from the ventilation pipe, thereby improving the drying efficiency and drying quality.

[0015] The ventilation pipe of the utility model is spiral-shaped, which can increase the number of the second air outlet holes, and the second air outlet holes are evenly distributed on the ventilation pipe, so that the hot air discharged through the second air outlet holes can have more contact with the raw materials when the raw materials fall between the sleeve and the cylinder body, thereby further improving the drying efficiency and drying quality.

[0016] The filter screen on the second air outlet of the utility model can prevent the raw materials from entering the ventilation pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a sectional front view of the utility model (the rotating shaft and the spiral piece are not cut);

[0018] Figure 2 It is a structural schematic diagram of the connection between the ventilation member and the sleeve of the utility model;

[0019] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0020] The numbers in the attached drawings are: 1. cylinder, 2. feed hopper, 3. lower hopper, 4. air outlet 1, 5. sleeve, 6. rotating shaft, 7. connecting rod, 8. motor, 9. spiral blade, 10. ventilation pipe, 11. air outlet 2, 12. hot air blower, 13. supporting leg, 14. discharge door, 15. cross bar, 16. guide plate, 17. filter screen, 18. window, 19. connecting pipe. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] like Figure 1 to Figure 3 As shown, a PE pipe raw material drying device includes a cylinder 1, which is a cylinder with an opening at the lower end. A feed hopper 2 is provided on the top plate of the cylinder 1, and also includes a material turning piece and a ventilation piece; the lower end of the cylinder 1 is connected to a lower hopper 3, and air outlet holes 4 are evenly distributed on the top plate; the material turning piece includes a sleeve 5 and a rotating shaft 6, the sleeve 5 is coaxially arranged in the cylinder 1, the sleeve 5 is a circular tube body with openings at both ends and an outer diameter smaller than the inner diameter of the cylinder 1, the lower end of the outer wall of the sleeve 5 is fixedly connected to the inner wall of the cylinder 1 through a plurality of connecting rods 7, the connecting rod 7 is a round rod body, and the rotating shaft 6 is A round rod body, wherein the rotating shaft 6 is coaxially arranged in the sleeve 5, the upper end of the rotating shaft 6 is connected to the motor 8, and the motor 8 drives the rotation, the lower end of the rotating shaft 6 extends into the lower hopper 3, and a spiral piece 9 is fixedly arranged on the outer surface of the rotating shaft 6, the spiral piece 9 is located in the sleeve 5, and both ends extend out of the sleeve 5 respectively, and a ventilation pipe 10 is arranged between the sleeve 5 and the cylinder 1 and is sleeved outside the sleeve 5. The ventilation pipe 10 is a spiral pipe body fixedly connected to the cylinder 1, and air outlet holes 11 are evenly distributed on the ventilation pipe 10. The upper end of the ventilation pipe 10 is closed and the lower end is open, which is connected to the hot air blower 12 through a connecting pipe 19.

[0023] The lower hopper 3 is a hollow truncated cone with a larger upper portion and a smaller lower portion and openings at both ends. The lower opening of the lower hopper 3 is connected to a discharge door 14 , and a plurality of support legs 13 are provided on the outer wall of the lower hopper 3 .

[0024] The lower end of the sleeve 5 is flush with the lower end of the cylinder 1, and there is a gap between the upper end and the top plate of the cylinder 1. The outer edge of the spiral sheet 9 slides in contact with the inner wall of the sleeve 5, and the spiral sheet 9 is right-handed.

[0025] The motor 8 is fixed on the outer top surface of the cylinder 1 with the output end facing downward, and the upper end of the rotating shaft 6 passes through the top plate of the cylinder 1 and is fixedly connected to the output end of the motor 8; the hot air blower 12 is fixed on the outer wall of the cylinder 1, and one end of the connecting pipe 19 is connected to the open end of the ventilation pipe 10, and the other end passes through the peripheral wall of the cylinder 1 and is connected to the output end of the hot air blower 12.

[0026] There is a distance between the outer wall of the sleeve 5 and the ventilation pipe 10, and there is a distance between the inner wall of the cylinder 1 and the ventilation pipe 10; the upper end of the outer wall of the ventilation pipe is fixedly connected to the inner wall of the cylinder 1 via a cross bar 15, and the cross bar 15 is a round rod. The lower end of the peripheral wall of the ventilation pipe 10 is fixedly connected to any connecting rod 7, which can ensure the stability of the ventilation pipe 10.

[0027] A material guide plate 16 is provided at the upper end of the peripheral wall of the sleeve. The material guide plate 16 is a truncated cone-shaped plate. The material guide plate 16 is fixed to the outside of the upper part of the sleeve 5 through a circular hole opened in the middle. The material guide plate 16 is higher than the upper end of the ventilation pipe 10, and the diameter of the lower end of the outer wall of the material guide plate is smaller than the distance between the outer wall of the sleeve 5 and the ventilation pipe 10.

[0028] Each of the second air outlet holes 11 is provided with a filter screen 17 , and a viewing window 18 is provided at the lower end of the peripheral wall of the cylinder body 1 .

[0029] When in use, close the discharge door 14, start the hot air blower 12, and the hot air blower 12 drives the hot air to enter the ventilation pipe 10 through the connecting pipe 19. The hot air in the ventilation pipe 10 enters the cylinder 1 through the multiple air outlet holes 11 and moves upward; the polyethylene raw material to be dried is fed into the cylinder 1 through the feed hopper 2, and the polyethylene raw material entering the cylinder 1 is in convection contact with the hot air in the cylinder 1, and the hot air carries the moisture on the polyethylene raw material and is discharged through the air outlet holes 4; observe through the window 18, when the polyethylene raw material falling into the lower hopper 3 through the cylinder 1 is close to the connecting rod 7, stop feeding, and the raw material entering the lower hopper 3 will gather at the spiral sheet 9 in the lower hopper 3; start the motor 8, and the motor 8 drives the rotating shaft 6 to rotate clockwise (the clockwise rotation of the rotating shaft 6 is Figure 1 The top view in the figure), the spiral piece 9 rotates clockwise with the rotating shaft 6. When the spiral piece rotates, the raw material in the lower hopper 3 can be driven to flow out from the upper end of the sleeve 5 from the bottom to the top. The raw material flowing out from the upper end of the sleeve 5 will be guided by the guide plate 16 and move downward between the sleeve 5 and the cylinder 1 in a dispersed state. When the raw material moves downward between the sleeve 5 and the cylinder 1, it can be more in contact with the hot air convection discharged from the ventilation pipe 10, so that the moisture on the raw material is carried by the hot air and discharged through the air outlet 4. Therefore, in the process of the motor 8 driving the rotating shaft 6 to rotate, the raw material in the lower hopper 3 can be driven to reciprocate and move up and down in the cylinder 1, so that the raw material can contact with the hot air in the cylinder 1 for many times. The utility model can not only turn over the raw material, but also can be dried in the process of turning over the raw material. Opening the discharge door can facilitate the unloading of the material.

[0030] The preferred implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the above-mentioned embodiments. Without violating the spirit of the present invention, i.e., the disclosure scope, any equivalent or equivalent deformation or replacement of the technical solution of the present invention shall fall within the protection scope of the present invention.

Claims

1. A PE pipe raw material drying device, characterized in that: The invention comprises a cylinder (1), a feed hopper (2) is provided on the top plate of the cylinder (1), and also comprises a material turning member and a ventilation member; the lower end of the cylinder (1) is connected to a lower hopper (3), and air outlet holes (4) are evenly distributed on the top plate; the material turning member comprises a sleeve (5) and a rotating shaft (6); the sleeve (5) is coaxially arranged in the cylinder (1), the lower end of the outer wall of the sleeve (5) is fixedly connected to the inner wall of the cylinder (1) via a plurality of connecting rods (7), the rotating shaft (6) is coaxially arranged in the sleeve (5), the upper end of the rotating shaft (6) is connected to a motor (8), and is driven to rotate by the motor (8) The rotating shaft (6) is movable, and the lower end of the rotating shaft (6) extends into the lower hopper (3). A spiral sheet (9) is fixedly arranged on the outer surface of the rotating shaft (6). The spiral sheet (9) is located in the sleeve (5) and its two ends extend out of the sleeve (5). A ventilation pipe (10) is arranged between the sleeve (5) and the cylinder (1) and is sleeved outside the sleeve (5). The ventilation pipe (10) is a spiral pipe body fixedly connected to the cylinder (1). Two air outlet holes (11) are evenly distributed on the ventilation pipe (10). The upper end of the ventilation pipe (10) is closed and the lower end is open, and is connected to the hot air blower (12) through a connecting pipe (19).

2. A PE pipe raw material drying device according to claim 1, characterized in that: The lower hopper (3) is a hollow truncated cone that is larger at the top and smaller at the bottom and open at both ends. The lower opening of the lower hopper (3) is connected to a discharge door (14), and a plurality of support legs (13) are provided on the outer wall of the lower hopper (3).

3. A PE pipe raw material drying device according to claim 1, characterized in that: The lower end of the sleeve (5) is flush with the lower end of the cylinder (1), and there is a gap between the upper end and the top plate of the cylinder (1). The outer edge of the spiral sheet (9) slidably contacts the inner wall of the sleeve (5), and the spiral sheet (9) has a right-handed rotation direction.

4. A PE pipe raw material drying device according to claim 1, characterized in that: The motor (8) is fixed on the outer top surface of the cylinder (1) with the output end facing downward, and the upper end of the rotating shaft (6) passes through the top plate of the cylinder (1) and is fixedly connected to the output end of the motor (8); the hot air blower (12) is fixed on the outer wall of the cylinder (1), and one end of the connecting pipe (19) is connected to the open end of the ventilation pipe (10), and the other end passes through the peripheral wall of the cylinder (1) and is connected to the output end of the hot air blower (12).

5. A PE pipe raw material drying device according to claim 4, characterized in that: There is a distance between the outer wall of the sleeve (5) and the ventilation pipe (10), and there is a distance between the inner wall of the cylinder (1) and the ventilation pipe (10); the upper end of the outer wall of the ventilation pipe is fixedly connected to the inner wall of the cylinder (1) via a cross bar (15), and the lower end of the peripheral wall of the ventilation pipe (10) is fixedly connected to any one of the connecting rods (7).

6. A PE pipe raw material drying device according to claim 5, characterized in that: A material guide plate (16) is provided at the upper end of the peripheral wall of the sleeve. The material guide plate (16) is a truncated cone-shaped plate. The material guide plate (16) is fixed to the outside of the upper part of the sleeve (5) through a circular hole opened in the middle. The material guide plate (16) is higher than the upper end of the ventilation pipe (10). The diameter of the lower end of the outer wall of the material guide plate is smaller than the distance between the outer wall of the sleeve (5) and the ventilation pipe (10).

7. A PE pipe raw material drying device according to claim 1, characterized in that: Each of the second air outlet holes (11) is provided with a filter screen (17), and a viewing window (18) is provided at the lower end of the peripheral wall of the cylinder (1).

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