Vertical lift and spin dryer

Abstract

The utility model discloses a vertical material lifting and spin-drying machine belongs to the technical field of plastic regeneration processing, including spin-drying machine upper casing, screen, lift material spin-drying roller and drive assembly, and lift material spin-drying roller coaxially rotatablely is arranged in the inside of screen, and screen is fixed in the inside of spin-drying machine upper casing, and the outer wall of lift material spin-drying roller is equipped with material guide structure, and drive assembly drives lift material spin-drying roller high -speed rotation, and material is lifted at the same time, and liquid is spun out through centrifugal force and is discharged from the drain port through screen. The utility model discloses the material lifting and spin-drying function unification, solved the prior art process separation, equipment structure complex, production discontinuous problem, significantly simplified production line, realized the automation continuous production, improved dehydration efficiency, at the same time, the maintenance door of spin-drying machine upper casing also promoted the maintainability of equipment.

Description

Technical Field

[0001] This utility model relates to the field of plastic recycling technology, and in particular to a vertical material lifting and drying machine. Background Technology

[0002] In the plastic recycling industry, waste plastic products such as plastic bottles and plastic films usually produce a large number of wet plastic fragments with attached moisture after crushing and washing. In order to carry out subsequent reuse processes such as melting and granulation, these wet plastic fragments must be efficiently dehydrated and dried.

[0003] In existing conventional processing, the washed wet plastic fragments are usually transferred from the rinsing tank or washing tank located at a low level and then sent to the dewatering equipment. This process is generally carried out in two steps: first, the material is lifted and transported out of the water using a screw conveyor, scraper scooper or manual scooping; then, the lifted wet material is fed into a separate horizontal or vertical centrifugal dryer for dewatering.

[0004] This process, which separates the material lifting and drying functions, requires at least two independent equipment systems to work together. This firstly leads to a complex equipment configuration and a large footprint for the entire production line. Secondly, the transfer of materials between the material lifting and drying equipment can cause interruptions in the production process, reducing the continuity and automation level of production. Sometimes, manual assistance is even required, increasing labor intensity and production costs. In addition, the operation of multiple sets of equipment also means higher total energy consumption.

[0005] Therefore, this utility model proposes a vertical material lifting and drying machine to overcome the shortcomings of the existing technology. Utility Model Content

[0006] In view of the problems of existing vertical material lifting and drying machines, such as the separation of material lifting and drying processes, resulting in complex equipment structure, low automation and discontinuous production, this utility model aims to provide a vertical material lifting and drying machine with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a vertical material lifting and drying machine, including: a dryer upper shell, a screen, and a drive assembly; and a material lifting and drying roller.

[0008] The outer wall of the lifting and drying roller is provided with a guide structure for lifting the material along its axial direction.

[0009] Furthermore, the screen is coaxially fixed inside the upper housing of the centrifuge, and the lifting centrifuge roller is coaxially and rotatably arranged inside the screen; the lower part of the upper housing of the centrifuge is provided with an inlet that communicates with the feed channel, the upper part of the upper housing of the centrifuge is provided with an outlet, and the bottom of the upper housing of the centrifuge is provided with a drain outlet.

[0010] Preferably, the drive assembly includes a motor, a V-belt pulley one connected to the motor output shaft, a V-belt pulley two connected to the lower end of the lifting and drying roller, and a V-belt sleeved on the V-belt pulley one and the V-belt pulley two.

[0011] Preferably, the vertical material lifting and drying machine also includes a V-shaped belt protective cover, which covers the outside of the V-shaped belt disc one, the V-shaped conveyor belt and the V-shaped belt disc two.

[0012] Preferably, the vertical lifting and centrifugal dryer also includes a bearing housing for rotatably supporting the lower end of the lifting and centrifugal drying roller.

[0013] Preferably, the vertical material lifting and drying machine also includes a feeding guide cylinder, which is fixed to the outer wall of the bearing seat, and the inlet is opened on the side wall of the feeding guide cylinder.

[0014] Preferably, the vertical material lifting and centrifugal dryer also includes an upper and lower body connecting piece, which is fixedly connected between the feed guide cylinder and the upper shell of the centrifugal dryer.

[0015] Preferably, an inspection door is provided on the side wall of the upper casing of the spin dryer.

[0016] Preferably, the material guiding structure on the lifting and drying roller is a blade integrally formed in a spiral shape along the outer wall of the lifting and drying roller.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting up a lifting and centrifugal drying roller that combines spiral lifting and centrifugal drying functions, allows the vertical lifting and centrifugal dehydration of materials to be completed simultaneously in the same equipment. This solves the problems of the separation of material lifting and drying processes in the prior art, the need for multiple equipment combinations leading to complex production line structure and low degree of automation. It achieves the technical effects of simplifying equipment structure, realizing automatic continuous production, and significantly improving production efficiency.

[0019] 2. This utility model solves the problems of difficult maintenance of some core components of existing spin dryers and safety hazards caused by exposed transmission parts by opening an inspection door on the side wall of the upper shell of the spin dryer and setting a V-shaped belt protective cover for the external transmission mechanism. It achieves the technical effects of convenient and quick maintenance, ensuring long-term stable operation of the equipment, and improving operational safety. Attached Figure Description

[0020] Figure 1 This is a front perspective view of the vertical material lifting and centrifugal dryer proposed in this utility model;

[0021] Figure 2 This is a top view of the vertical material lifting and centrifugal dryer proposed in this utility model;

[0022] Figure 3 This is a partial structural diagram of the upper shell of the vertical material lifting and centrifugal dryer proposed in this utility model.

[0023] Legend:

[0024] 1. Bearing housing; 2. Feed inlet; 3. Feed guide cylinder; 4. Upper and lower machine body connecting parts; 5. V-belt protective cover; 6. Drain outlet; 7. Upper shell of the spin dryer; 8. Inspection door; 9. Screen; 10. Discharge outlet; 11. Lifting spin dryer roller; 12. Motor; 13. V-belt pulley one; 14. V-belt; 15. V-belt pulley two. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Example:

[0027] Please refer to Figure 1 and Figure 2The vertical lifting and centrifugal dryer includes a bearing seat 1 serving as the equipment base. The lower end of the lifting and centrifugal drying roller 11 is rotatably mounted inside the bearing seat 1. The outer wall of the lifting and centrifugal drying roller 11 is provided with a guide structure for lifting the material along its axial direction. The screen 9 is cylindrical and coaxially sleeved on the outside of the lifting and centrifugal drying roller 11. A radial gap is maintained between the screen 9 and the lifting and centrifugal drying roller 11 for material passage. The upper shell 7 of the centrifugal dryer is a hollow cylinder. The upper shell 7 of the centrifugal dryer is coaxially covered on the outside of the screen 9, and the screen 9 is fixed to the inner wall of the upper shell 7 by fasteners or slots, thereby forming a working chamber. The feed guide cylinder 3 is fixed to the outer wall of the bearing seat 1. The side wall of the feed guide cylinder 3 is provided with a feed inlet 2. The upper and lower machine body connecting parts 4 are connected by flange bolts. The upper end of the feed guide cylinder 3 is fixedly connected to the lower end of the upper housing 7 of the spin dryer. The top of the upper housing 7 of the spin dryer is provided with a discharge port 10, and the bottom of the upper housing 7 of the spin dryer is provided with a drain port 6. The side wall of the upper housing 7 of the spin dryer is movably connected to the maintenance door 8 by a hinge. The drive assembly includes a motor 12, a V-type belt pulley 13, a V-type conveyor belt 14, a V-type belt pulley 2 15, and a V-type belt protective cover 5. The output shaft end of the motor 12 is fixedly connected to the V-type belt pulley 13. The V-type belt pulley 2 15 is coaxially fixed at the lower end of the shaft of the lifting spin dryer roller 11 extending out of the bearing seat 1. The V-type conveyor belt 14 is tensioned and sleeved between the V-type belt pulley 13 and the V-type belt pulley 2 15 to transmit power. The V-type belt protective cover 5 is detachably covered on the outside of the transmission mechanism.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3 The lifting and spinning roller 11 has spirally integrally formed blades along its outer wall as a material guiding structure. The lower end of the lifting and spinning roller 11 is rotatably mounted inside the bearing seat 1 via a bearing, while the upper end of the lifting and spinning roller 11 is suspended and coaxially positioned at the center of the fixed screen 9. The lifting and spinning roller 11 is driven by a drive assembly to rotate at high speed. Its function is to generate an upward thrust on the material using the material guiding structure during rotation, while simultaneously generating a strong centrifugal force. The screen 9 is a hollow cylindrical structure and is coaxially fixed to the inner wall of the upper housing 7 of the spin dryer by snap-fit ​​or welding. The function of the screen 9 is to intercept solid materials under centrifugal force and allow liquid to pass through. In the assembled state, the high-speed rotating lifting and drying roller 11 and the stationary screen 9 form a dynamic solid-liquid separation working area. This cooperation relationship of arranging the spiral lifting structure and the centrifugal separation component coaxially ensures that the material is continuously subjected to centrifugal force throughout the process of being lifted from the inlet 2 to the outlet 10, thereby efficiently completing the dewatering operation. The power of the motor 12 is finally stably transmitted to the lifting and drying roller 11 via the V-type belt pulley 13, the V-type conveyor belt 14 and the V-type belt pulley 15.

[0029] To provide a stable, reliable, and safe driving force, the motor 12 of the drive assembly is fixed to the frame with anchor bolts. V-belt pulley one 13 is fixed to the output shaft of the motor 12 via a key connection. V-belt pulley two 15 is also coaxially fixed to the lower end of the shaft of the lifting and drying roller 11 extending from the bearing housing 1 via a key connection. The V-belt 14 is made of wear-resistant rubber, and the V-belt protective cover 5 is made of stamped metal sheet and is detachably fixed to the frame with bolts, completely covering the transmission mechanism. To achieve precise and stable rotational support for the lifting and drying roller 11, at least two sets of radial thrust ball bearings are installed inside the bearing housing 1. To ensure smooth material feeding and a secure connection of the machine body, the feed guide cylinder 3 is made of stainless steel. The upper and lower body connecting parts 4 are flanges with sealing grooves, and the feed guide cylinder 3 and the upper shell 7 of the spin dryer are sealed and fixed by multiple sets of high-strength bolts and corrosion-resistant sealing rings. In order to facilitate quick inspection and cleaning of the interior, the inspection door 8 on the upper shell 7 of the spin dryer is movably connected to the upper shell 7 of the spin dryer by stainless steel heavy-duty hinges and is closed by quick-locking buckles. In order to further improve the material lifting efficiency and structural reliability, the material guiding structure on the lifting spin dryer roller 11 is preferably a continuous blade integrally formed in a spiral shape along the outer wall of the lifting spin dryer roller 11. This seamless integrated structure avoids stress concentration points and can better withstand the huge centrifugal force brought by high-speed rotation and the continuous impact of materials.

[0030] Working principle:

[0031] When material needs to be lifted and spun dry, a feeding guide cylinder 3 is set on the outer wall of the bearing seat 1, and a feeding port 2 is set on the side wall of the feeding guide cylinder 3 for absorbing and conveying materials. At the same time, the other side of the feeding guide cylinder 3 can be connected to the upper shell 7 of the spun dryer through the upper and lower body connecting parts 4 to seal and protect the internal equipment. The maintenance door 8 is opened on the side wall of the upper shell 7 of the spun dryer to quickly maintain and repair the equipment inside the upper shell 7 of the spun dryer, ensuring the long-term normal operation of the equipment. The V-shaped belt protective cover 5 set on the right side can protect the V-shaped belt disc 13 and the V-shaped conveyor belt 14 when the motor 12 drives the transmission, thereby ensuring the sealing environment required by the equipment and protecting it.

[0032] When the motor 12 is driven, it can drive the V-shaped conveyor belt 14 through the V-shaped belt disc 13 fixed at the output end. On the other side of the V-shaped conveyor belt 14, the internal lifting and drying roller 11 can be driven by the V-shaped belt disc 15 to vertically lift the crushed and washed plastic fragments from the rinsing tank to the dewatering chamber, realizing automatic material suction and centrifugal dewatering: Under the action of the high-speed rotating drum, the plastic solids adhere to the inner wall of the drum due to centrifugal force, the liquid is discharged from the drain port 6 through the screen 9, and the waste is discharged outward through the discharge port 10, realizing continuous automated production and replacing the manual scooping and dewatering process.

Claims

1. A vertical material-lifting centrifugal dryer, comprising a centrifugal dryer upper housing (7), a screen (9) coaxially fixed inside the centrifugal dryer upper housing (7), and a drive assembly; Its features are, The vertical material lifting and drying machine also includes a lifting and drying roller (11), which is coaxially and rotatably arranged inside the screen (9). The outer wall of the lifting and drying roller (11) is provided with a material guiding structure for lifting the material along its axial direction. The upper shell (7) of the spin dryer has an inlet (2) connected to the feed channel at the lower part, an outlet (10) at the upper part, and a drain outlet (6) at the bottom. The drive assembly is used to drive the lifting and drying roller (11) to rotate at high speed so that the material guiding structure of the lifting and drying roller (11) will convey the material entering from the inlet (2) upward to the outlet (10), while the liquid in the material passes through the screen (9) under the action of centrifugal force and is discharged from the drain (6).

2. The vertical material lifting and centrifugal dryer according to claim 1, characterized in that, The drive assembly includes a motor (12), a V-belt first (13) connected to the output shaft of the motor (12), a V-belt second (15) connected to the lower end of the lifting and drying roller (11), and a V-belt (14) sleeved on the V-belt first (13) and the V-belt second (15).

3. The vertical material lifting and centrifugal dryer according to claim 2, characterized in that, The vertical material lifting and drying machine also includes a V-shaped belt protective cover (5), which covers the outside of the V-shaped belt disc one (13), the V-shaped conveyor belt (14) and the V-shaped belt disc two (15).

4. The vertical material lifting and centrifugal dryer according to claim 1, characterized in that, The vertical material lifting and drying machine also includes a bearing seat (1), which is used to rotatably support the lower end of the lifting and drying roller (11).

5. The vertical material lifting and centrifugal dryer according to claim 4, characterized in that, The vertical material lifting and drying machine also includes a feeding guide cylinder (3), which is fixed to the outer wall of the bearing seat (1), and the inlet (2) is opened on the side wall of the feeding guide cylinder (3).

6. The vertical material lifting and centrifugal dryer according to claim 5, characterized in that, The vertical material lifting and centrifugal dryer also includes an upper and lower body connecting piece (4), which is fixedly connected between the feed guide cylinder (3) and the upper shell (7) of the centrifugal dryer.

7. The vertical material lifting and centrifugal dryer according to claim 1, characterized in that, An inspection door (8) is provided on the side wall of the upper housing (7) of the spin dryer.

8. The vertical material lifting and centrifugal dryer according to claim 1, characterized in that, The material guiding structure on the lifting and drying roller (11) is a blade integrally formed in a spiral shape along the outer wall of the lifting and drying roller (11).

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