Multifunctional winnowing and screening device

Abstract

The multifunctional winnowing and screening device comprises a fixing frame, a lower pipe and a bottom shell, an outer pipe is installed at the top end in the fixing frame, an inner pipe is arranged in the outer pipe, and meanwhile a partition plate is welded between the upper end of the inner wall of the outer pipe and the upper end of the outer wall of the inner pipe; the top end of the inner pipe penetrates through the top of the outer pipe and is connected with the top shell, and an air outlet is formed in one side of the top shell. The feeding port, the inner pipe and the partition plate are arranged, the top shell and the centrifugal fan are arranged at the top end of the inner pipe, an air suction mode is adopted, air is fed through the feeding port, airflow is mixed with plastic particles in advance, the spiral partition plate is matched, the contact time of the airflow and the plastic particles is ensured, and it is ensured that light impurities in the plastic particles can make full contact with the airflow; the screening efficiency is improved.

Description

Technical Field

[0001] This utility model specifically relates to the technical field of air separation and screening devices, and specifically to a multifunctional air separation and screening device. Background Technology

[0002] Air separation screening devices utilize the differences in suspension velocity of different substances in airflow to achieve rapid separation of materials by adjusting the wind speed and direction. Their working principle is mainly based on the combination of wind force and screening technology. Through a high-speed rotating separation device or strong airflow, materials are divided into two or more categories, light and heavy. They are widely used in the screening of plastic granules.

[0003] Currently used air classifiers are typically used for materials such as ores that are relatively heavy. Therefore, the airflow velocity can be kept high, and light impurities in the ore can be removed in a single screening. However, plastic particles are relatively light, and excessive airflow velocity may cause material backflow. Therefore, traditional air classifiers are prone to failing to effectively remove larger impurities trapped between plastic particles under low airflow conditions, which has drawbacks in use. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional air classification and screening device to solve the problem mentioned in the background art that the currently used air classification and screening devices need to maintain a large airflow velocity. Excessive airflow velocity may cause material backflow. Therefore, under low airflow conditions, traditional air classification and screening devices are prone to the inability to effectively remove large impurities trapped between plastic particles, which has drawbacks in use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multifunctional air separation and screening device includes a fixed frame, a lower pipe and a bottom shell. An outer pipe is installed at the top of the inner part of the fixed frame, and an inner pipe is provided inside the outer pipe. A first partition is welded between the upper end of the inner wall of the outer pipe and the upper end of the outer wall of the inner pipe. The top end of the inner pipe passes through the top of the outer pipe and is connected to the top shell. An air outlet is provided on one side of the top shell.

[0007] As a further embodiment of this utility model: a rubber tube is installed at the top of the lower tube, and the top of the rubber tube is connected to the bottom of the outer tube; a sieve plate is installed on the inner side of the lower tube, and a movable baffle is installed at one end of the sieve plate; a cylinder is installed on the outer wall of the lower tube, and a connecting rod is installed at the extended end of the cylinder, while the end of the connecting rod is connected to the top end of the movable baffle; the outer wall of the lower tube is connected to the top of the spring, and three springs are distributed at equal angles about the vertical axis of the lower tube, and all three springs are installed on a fixed frame;

[0008] As a further embodiment of this utility model: the bottom shell is installed at the bottom of the lower tube, and the bottom of the bottom shell is provided with a second discharge port, while a first discharge port is provided on one side of the first discharge port.

[0009] As a further embodiment of this utility model: the centerline of the fixing frame and the centerline of the outer tube are on the same vertical line, and the upper part of the outer tube is provided with a feed port;

[0010] As a further embodiment of this utility model: the length of the outer tube is greater than the length of the inner tube, and the top of the inner tube is connected to the interior of the top shell.

[0011] As a further embodiment of this utility model: a motor is installed on the top of the top shell, and the output shaft of the motor is connected to the centrifugal fan, while the centrifugal fan is installed inside the top shell.

[0012] As a further embodiment of this utility model: the centerline of the lower tube, the centerline of the outer tube, and the centerline of the bottom shell are all on the same vertical straight line, and a second partition is provided inside the bottom shell, with the top of the second partition closely attached to the bottom side of the sieve plate.

[0013] As a further embodiment of this utility model: the sieve plate is inclined, and the connection between the sieve plate and the movable baffle is a rotatable connection, while the connection between the movable baffle and the connecting rod is also a rotatable connection.

[0014] As a further embodiment of this utility model: the cylinder, connecting rod and movable baffle form a rotating structure.

[0015] As a further embodiment of this utility model: a vibration motor is installed on the outer wall of the bottom shell, and the vibration motor, the bottom shell, the lower tube and the rubber tube constitute a vibration structure.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model is provided with a feed inlet, an inner tube and a first baffle. By setting a top shell and a centrifugal fan at the top of the inner tube, air is introduced through the feed inlet by suction, so that the airflow is mixed with the plastic particles in advance. With the help of the spiral first baffle, the contact time between the airflow and the plastic particles is ensured, so that the lighter impurities in the plastic particles can fully contact the airflow and improve the screening efficiency.

[0018] 2. This utility model is equipped with a lower pipe, a sieve plate, and a movable baffle. After being screened by the airflow, plastic particles and larger impurities will fall onto the sieve plate. The sieve plate is inclined and can screen larger impurities in the plastic particles by gravity. The screened plastic will temporarily accumulate on the movable baffle. The movable baffle can be opened and closed periodically by a cylinder to release the screened plastic particles into the bottom shell and then discharge them through the first discharge port.

[0019] 3. This utility model is equipped with a vibration motor, springs and rubber hoses. The outer tube and the lower tube are flexibly connected by the rubber hoses. The vibration motor, together with the three springs, can drive the lower tube and the bottom shell to vibrate synchronously at high frequency, which can effectively avoid the problem of reduced screening efficiency caused by the accumulation of plastic particles on the top of the screen plate. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a utility model Figure 1 Another perspective view.

[0022] Figure 3 This is a utility model Figure 2 Another perspective view.

[0023] Figure 4 This is a three-dimensional structural diagram of the sieve plate in this utility model.

[0024] Figure 5 This is a utility model Figure 4 Another perspective view.

[0025] In the diagram: 1-fixed frame, 2-outer tube, 3-inner tube, 4-first partition, 5-feed inlet, 6-top shell, 7-motor, 8-centrifugal fan, 9-air outlet, 10-lower tube, 11-rubber hose, 12-spring, 13-sieve plate, 14-cylinder, 15-connecting rod, 16-movable baffle, 17-bottom shell, 18-first discharge port, 19-second discharge port, 20-vibration motor, 21-second partition. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5In this embodiment of the utility model, a multifunctional air-separation screening device includes a fixed frame 1, a lower pipe 10, and a bottom shell 17. An outer pipe 2 is installed at the top of the inner wall of the fixed frame 1, and an inner pipe 3 is provided inside the outer pipe 2. A first partition 4 is welded between the upper end of the inner wall of the outer pipe 2 and the upper end of the outer wall of the inner pipe 3. The top end of the inner pipe 3 passes through the top of the outer pipe 2 and connects to the top shell 6, and an air outlet 9 is provided on one side of the top shell 6. A rubber tube 11 is installed at the top of the lower pipe 10, and the top of the rubber tube 11 is connected to the bottom of the outer pipe 2. A sieve plate 13 is installed on the inner side of the lower pipe 10, and the sieve plate 1... A movable baffle 16 is installed at one end of the 3; a cylinder 14 is installed on the outer wall of the lower tube 10, and a connecting rod 15 is installed at the extended end of the cylinder 14, while the end of the connecting rod 15 is connected to the top end of the movable baffle 16; the outer wall of the lower tube 10 is connected to the top of the spring 12, and three springs 12 are distributed at equal angles about the vertical axis of the lower tube 10, and all three springs 12 are installed on the fixed frame 1; the bottom shell 17 is installed at the bottom of the lower tube 10, and a second discharge port 19 is provided at the bottom of the bottom shell 17, while a first discharge port 18 is provided on one side of the first discharge port 18.

[0028] More specifically, the hose 11 is made of rubber and is used for a flexible connection between the outer hose 2 and the lower hose 10.

[0029] As a further illustration of this embodiment, flanges are provided at the ends of both the second discharge port 19 and the first discharge port 18.

[0030] In this embodiment, the centerline of the fixing frame 1 and the centerline of the outer tube 2 are on the same vertical line, and the upper part of the outer tube 2 is provided with a feed port 5; the length of the outer tube 2 is greater than the length of the inner tube 3, and the top of the inner tube 3 is connected to the interior of the top shell 6.

[0031] More specifically, plastic granules are fed into the outer tube 2 through the feed inlet 5, and airflow simultaneously enters the outer tube 2 through the feed inlet 5.

[0032] As a further explanation of this embodiment, the inner tube 3 is used to separate the internal space of the outer tube 2 and increase the flow distance of the airflow in the outer tube 2.

[0033] In this embodiment, a motor 7 is installed on the top of the top shell 6, and the output shaft of the motor 7 is connected to the centrifugal fan 8 in a transmission connection. Meanwhile, the centrifugal fan 8 is installed inside the top shell 6.

[0034] To be more specific, the centrifugal fan 8 is driven to rotate at high speed by the motor 7.

[0035] As a further explanation of this embodiment, the airflow carries lighter impurities from the plastic particles and discharges them through the air outlet 9.

[0036] In this embodiment, the centerline of the lower tube 10, the centerline of the outer tube 2, and the centerline of the bottom shell 17 are all on the same vertical line, and the bottom shell 17 is provided with a second partition 21 inside, while the top of the second partition 21 is in close contact with the bottom side of the screen plate 13.

[0037] More specifically, the second partition 21 divides the interior of the bottom shell 17 into two spaces, and the two spaces are respectively connected to the first discharge port 18 and the second discharge port 19.

[0038] As a further explanation of this embodiment, the impurities filtered by the sieve plate 13 will fall directly into the interior of the bottom shell 17 and then be discharged through the second discharge port 19.

[0039] In this embodiment, the sieve plate 13 is inclined, and the sieve plate 13 is connected to the movable baffle 16 by rotation. At the same time, the movable baffle 16 is connected to the connecting rod 15 by rotation. The cylinder 14, the connecting rod 15 and the movable baffle 16 form a rotating structure.

[0040] More specifically, in the initial state, the movable baffle 16 and one end of the sieve plate 13 are in a closed state.

[0041] As a further explanation of this embodiment, by pulling the connecting rod 15 outward by the cylinder 14, the connecting rod 15 will be rotated downward, thereby pushing the movable baffle 16 to rotate downward in sync, so as to release the plastic particles accumulated in the lower tube 10.

[0042] In this embodiment, a vibration motor 20 is installed on the outer wall of the bottom shell 17, and the vibration motor 20, the bottom shell 17, the lower tube 10 and the rubber tube 11 form a vibration structure.

[0043] More specifically, the vibration motor 20 drives the bottom shell 17 and the lower tube 10 to vibrate at high frequency, thereby improving the screening efficiency.

[0044] As a further explanation of this embodiment, the hose 11 and the spring 12 are used to absorb vibration and improve the overall stability during use.

[0045] The working principle of this utility model is as follows: First, connect the second discharge port 19 to the flange of the impurity collection device, and connect the first discharge port 18 to the flange of the material collection device. Turn on the external power supply, start the motor 7, and drive the centrifugal fan 8 to rotate at high speed, thereby generating negative pressure inside the top shell 6. At this time, the air in the outer pipe 2 is injected into the top shell 6 through the inner pipe 3, and then discharged through the air outlet 9. At the same time, the external air and the plastic granule raw material enter the outer pipe 2. After passing through the spiral first baffle 4, the plastic granules and larger impurities will fall onto the screen plate 13, while the airflow carries the smaller impurities. Light impurities are discharged through the air outlet 9. The vibration motor 20 is started, which drives the lower pipe 10 and the bottom shell 17 to vibrate synchronously, accelerating the screening efficiency of the screen plate 13. Larger impurities pass through the screen plate 13 and fall directly into the bottom shell 17, and are then discharged directly through the second discharge port 19. When too many plastic particles accumulate in the lower pipe 10, the cylinder 14 is started, which pulls the connecting rod 15 outward. The connecting rod 15 pushes the movable baffle 16 downward to flip, which releases the impurities accumulated inside the lower pipe 10 into the bottom shell 17. Then, the screened plastic particles are discharged through the first discharge port 18.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multifunctional air-separation screening device, characterized in that: The device includes a fixed frame (1), a lower tube (10), and a bottom shell (17). The upper end of the fixed frame (1) is equipped with an outer tube (2), and the inner tube (3) is provided inside the outer tube (2). At the same time, a first partition (4) is welded between the upper end of the inner wall of the outer tube (2) and the upper end of the outer wall of the inner tube (3). The top end of the inner tube (3) passes through the top of the outer tube (2) and is connected to the top shell (6). An air outlet (9) is provided on one side of the top shell (6). The lower tube (10) is equipped with a rubber tube (11) at the top, and the top of the rubber tube (11) is connected to the bottom of the outer tube (2); a sieve plate (13) is installed on the inner side of the lower tube (10), and a movable baffle (16) is installed at one end of the sieve plate (13); a cylinder (14) is installed on the outer wall of the lower tube (10), and a connecting rod (15) is installed at the extended end of the cylinder (14), and the end of the connecting rod (15) is connected to the top end of the movable baffle (16); the outer wall of the lower tube (10) is connected to the top of the spring (12), and three springs (12) are distributed at equal angles about the vertical axis of the lower tube (10), and all three springs (12) are installed on the fixed frame (1). The bottom shell (17) is installed at the bottom of the lower tube (10), and the bottom of the bottom shell (17) is provided with a second discharge port (19), while the first discharge port (18) is provided on one side.

2. The multifunctional air-separation screening device according to claim 1, characterized in that: The centerline of the fixed frame (1) and the centerline of the outer tube (2) are on the same vertical line, and the upper part of the outer tube (2) is provided with a feed inlet (5). The outer tube (2) is longer than the inner tube (3), and the top of the inner tube (3) is connected to the interior of the top shell (6).

3. The multifunctional air-separation screening device according to claim 1, characterized in that: A motor (7) is installed on the top of the top shell (6), and the output shaft of the motor (7) is connected to the centrifugal fan (8) for transmission. Meanwhile, the centrifugal fan (8) is installed inside the top shell (6).

4. The multifunctional air-separation screening device according to claim 1, characterized in that: The centerline of the lower tube (10), the centerline of the outer tube (2) and the centerline of the bottom shell (17) are all on the same vertical line, and the bottom shell (17) is provided with a second partition (21), and the top of the second partition (21) is close to the bottom side of the sieve plate (13).

5. The multifunctional air-separation screening device according to claim 1, characterized in that: The sieve plate (13) is inclined, and the connection between the sieve plate (13) and the movable baffle (16) is a rotatable connection. At the same time, the connection between the movable baffle (16) and the connecting rod (15) is a rotatable connection. The cylinder (14), connecting rod (15) and movable baffle (16) form a rotating structure.

6. The multifunctional air-separation screening device according to claim 1, characterized in that: A vibration motor (20) is installed on the outer wall of the bottom shell (17), and the vibration motor (20), the bottom shell (17), the lower tube (10) and the rubber tube (11) form a vibration structure.

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