A dust suppression device for the recycling of PVC scrap.

Abstract

This utility model relates to the field of PVC waste treatment technology, and in particular to a dust suppression device for crushing and recycling PVC scrap. The technical solution includes: a feed inlet, a flap, a housing, and a cylindrical shell. The flap rotates inside the feed inlet, and the housing is fixedly installed on the outer wall of the feed inlet. The feed inlet and the housing have through-holes that connect to each other. Rubber blocks are installed at the shaft end of the flap, and two rubber blocks are slidably installed inside the housing. The middle openings of the two suppression holes are located on the moving paths of the two rubber blocks. The suppression holes are connected to the cylindrical shell through a three-way pipe. A negative pressure dust filter assembly is installed on the cylindrical shell. This utility model, through the linkage between the flap and the suppression holes and the negative pressure suction filtration structure, achieves dust prevention during feeding, efficient dust collection, and self-cleaning of the filter cartridge to prevent clogging, ensuring clean and efficient operation of the crushing process.

Description

Technical Field

[0001] This utility model relates to the field of PVC waste treatment technology, and in particular to a dust suppression device for the crushing and recycling of PVC scraps. Background Technology

[0002] PVC scraps usually need to be crushed and recycled during processing for reuse. However, during the crushing process, PVC scraps generate a lot of dust when subjected to mechanical impact. Dust not only pollutes the environment but also threatens the health of operators. At the same time, the accumulation of dust can also affect the normal operation of equipment.

[0003] Existing dust treatment methods typically use centralized negative pressure suction to collect dust. However, the centralized negative pressure suction device and the feeding opening fail to work effectively together, resulting in low suction efficiency and dust diffusion. Furthermore, the existing negative pressure suction system is prone to clogging of the filter components during use, leading to reduced suction efficiency, requiring shutdown for cleaning, which is cumbersome. Moreover, it cannot prevent dust from accumulating inside the filter cartridge in real time, affecting the continuous operation of the system.

[0004] Therefore, we propose a dust suppression device for the crushing and recycling of PVC scrap to solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a dust suppression device for the crushing and recycling of PVC scrap.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dust suppression device for crushing and recycling PVC scrap, comprising a feed inlet, a flap, a housing, and a cylindrical shell. The flap is rotatably disposed at the open end of the feed inlet, and the housing is fixedly disposed on the outer wall of the feed inlet. The feed inlet and the housing are provided with through-through suppression holes. Rubber blocks are symmetrically fixed at the shaft end of the flap, and two rubber blocks are slidably disposed in the inner cavity of the housing. The middle opening of the two suppression holes is located on the moving path of the two rubber blocks. A three-way pipe is fixedly installed at the opening of the suppression hole on the outer wall of the housing. The three-way pipe is fixedly connected to the cylindrical shell. A negative pressure dust filter assembly is installed on the cylindrical shell. The negative pressure dust filter assembly includes a rubber ring pad, a microporous filter cartridge, a screw cap, a rubber column, and a vibration motor. The rubber ring pad is slidably inserted into the cylindrical shell. The microporous filter cartridge is rotatably mounted on the rubber ring pad. The top opening of the cylindrical shell is connected to an external negative pressure pump suction structure.

[0007] Preferably, the screw cap is threaded onto the side opening of the cylinder shell, the rubber column is rotatably mounted on the screw cap, the vibration motor is fixedly mounted on the rubber column, and the vibration motor abuts against the outer wall of the microporous filter cartridge.

[0008] Preferably, the outer wall of the microporous filter cartridge has a strip-shaped notch, and the portion of the vibration motor protruding from the rubber column is inserted into the strip-shaped notch of the microporous filter cartridge.

[0009] Preferably, there are two suppression holes, and the two suppression holes are respectively located on both sides of the flap when it is in a vertical state.

[0010] Preferably, a motor is fixedly installed inside the housing, and the output end of the motor is fixedly connected to the shaft end of the flip plate. The motor is used to drive the flip plate to rotate.

[0011] Preferably, a discharge port is provided at the lowest point of the inner cavity of the housing, and a collection bottle is threaded onto the bottom end of the discharge port.

[0012] Preferably, a sealing ring is fixedly provided on the circumferential surface of the flap, and the sealing ring is in contact with the inner wall of the feed inlet.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the use of this utility model dust suppression device for crushing and recycling PVC scrap, the feed inlet is fixed at the inlet of the PVC scrap crusher. During the normal crushing process of the machine, the flap is in a horizontal state to block the feed inlet and prevent dust from overflowing. During crushing and feeding, an external negative pressure pump is connected through the top opening of the cylinder shell to create a negative pressure state at the suppression hole. When connected to an external power source, the motor drives the flap to rotate to a vertical position. At this time, the feed inlet is opened and personnel feed the PVC scrap crusher through the feed inlet. During the rotation of the flap, its shaft drives the rubber block to rotate. When flipped horizontally, the two rubber blocks block the suppression hole. When the flap is vertical, the rubber blocks move away from the suppression hole, and the suppression hole is open. Two suppression holes suck up the crushed dust overflowing from the feed inlet. Under negative pressure, the dust enters the machine casing through the suppression holes, then enters the three-way pipe, and finally enters the cylinder shell through the three-way pipe. The dust entering the cylinder shell is filtered by the microporous filter cartridge. The filtered air enters the negative pressure suction device, while the dust is trapped inside the microporous filter cartridge. When it is necessary to clean the impurities trapped inside the microporous filter cartridge, the personnel can unscrew the screw cap to pull out the microporous filter cartridge. Furthermore, the vibration motor vibrates the microporous filter cartridge to prevent dust from clogging local areas of the microporous filter cartridge. Furthermore, personnel can manually rotate the rubber column periodically, which, through the vibration motor, drives the microporous filter cartridge to rotate at a certain angle, thus changing the position of the microporous filter cartridge facing the negative pressure suction port. The dust trapped inside the casing eventually falls into the collection bottle under the influence of gravity; This invention utilizes the cooperation of a flap and a suppression hole. When the flap is opened for feeding, the suppression hole automatically opens, and the negative pressure suction system works simultaneously to effectively prevent dust from overflowing during feeding. When the flap is closed, the suppression hole is blocked by a rubber block. Dust enters the cartridge through the suppression holes, housing, and three-way pipe under negative pressure. The microporous filter cartridge efficiently intercepts the dust, and the filtered air is discharged into the negative pressure suction device, ensuring the cleanliness of the workshop air. An external vibration motor can vibrate in real time to prevent dust from accumulating on the surface of the filter cartridge and maintain the permeability of the filter cartridge. At the same time, the screw cap structure makes the filter cartridge removable and replaceable, which is convenient for regular cleaning and improves the convenience of system maintenance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present utility model Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This is a cross-sectional view of the internal structure of the casing of this utility model; Figure 4 For the present utility model Figure 3 A diagram of the back of the car; Figure 5 This is a schematic diagram of the negative pressure dust filter assembly of this utility model.

[0015] Figure label: 1. Feed inlet; 2. Flip plate; 201. Rubber block; 3. Suppression hole; 4. Machine housing; 401. Collection bottle; 5. Cylinder shell; 501. Rubber ring gasket; 502. Microporous filter cartridge; 503. Screw cap; 504. Rubber column; 505. Vibration motor; 6. T-connector. Detailed Implementation

[0016] 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.

[0017] Example 1 like Figures 1-5 As shown, the present invention proposes a dust suppression device for crushing and recycling PVC scrap, including a feed inlet 1, a flap 2, a machine casing 4, a cylinder shell 5 and a three-way pipe 6. The feed inlet 1 is fixed at the inlet of the PVC scrap crusher and is used as a material input port during crushing operations. At the same time, it ensures that a sealed connection is formed between the device and the crusher to prevent crushing dust from escaping. The flap 2 is rotatably installed at the open end of the feed inlet 1. When closed, it is tightly attached to the inner wall of the feed inlet 1 to form a sealing surface, preventing dust from overflowing through the feed inlet. When open, it forms a feeding channel, which is convenient for manual or automatic feeding. When the flap 2 is in a horizontal state, it blocks the feed inlet 1 to prevent dust from overflowing. When the flap 2 is in a vertical state, it opens the feed inlet 1 to facilitate feeding. Motor 1 is installed inside the housing 4. The output end of motor 1 is fixedly connected to the shaft end of flap 2. After being powered on, motor 1 drives flap 2 to rotate between horizontal and vertical states, thus opening and closing the feeding port.

[0018] Rubber blocks 201 are symmetrically fixed at the shaft end of the flap 2. The rubber blocks 201 slide along the inner cavity of the housing 4 during the rotation of the flap 2. When the flap 2 is in the horizontal position, it is tightly attached to the inner wall of the housing 4 to seal the suppression hole 3. When the flap 2 is in the vertical position, the rubber blocks 201 separate from the suppression hole 3, so that the suppression hole 3 is fully opened. The negative pressure suction system can remove the dust generated at the moment of feeding in real time. When the flap 2 is horizontal, the rubber blocks 201 block the suppression hole 3. When the flap 2 is vertical, the rubber blocks 201 move away from the suppression hole 3, so that the suppression hole 3 is opened for negative pressure suction. There are two suppression holes 3, which are respectively set on both sides when the flap 2 is in the vertical state, so that the dust on both sides of the feeding port 1 can be evenly and efficiently sucked, avoiding dust diffusion caused by insufficient suction on one side.

[0019] The casing 4 is fixed to the outer wall of the feed inlet 1. The feed inlet 1 and the casing 4 have a through-hole 3. The outer wall end of the suppression hole 3 is connected to a three-way pipe 6. The three-way pipe 6 is fixedly connected to the cylinder shell 5. The negative pressure pump is connected through the opening at the top of the cylinder shell 5 to form a dust suction channel.

[0020] Example 2 like Figures 1-5 As shown, the dust suppression device for the recycling of PVC scrap materials proposed in this utility model, compared with Embodiment 1, further includes: a rubber ring gasket 501 slidably installed inside the cylindrical shell 5, a microporous filter cartridge 502 rotatably installed on the rubber ring gasket 501, the microporous filter cartridge 502 is used to intercept dust and ensure air passage, a screw cap 503 is threadedly installed on the side opening of the cylindrical shell 5, a rubber column 504 is rotatably set on the screw cap 503, and a vibration motor 505 is fixed on the rubber column 504. When working, the vibration motor 505 contacts the outer wall of the microporous filter cartridge 502 and generates vibration to prevent dust from accumulating on the surface of the filter cartridge.

[0021] The outer wall of the microporous filter cartridge 502 is provided with a strip-shaped notch. The vibration motor 505 extends into the strip-shaped notch and drives the microporous filter cartridge 502 to rotate during rotation, changing the position of the microporous filter cartridge 502 facing the negative pressure suction port and improving the uniformity of filtration.

[0022] An exhaust port is provided at the lowest point of the inner cavity of the casing 4. A collection bottle 401 is threaded onto the bottom of the exhaust port. Dust settles into the collection bottle 401 under gravity, which facilitates centralized collection and reuse.

[0023] The circumferential sealing ring of the flap 2 is tightly fitted to the inner wall of the feed inlet 1. When the flap 2 blocks the feed inlet 1, it prevents dust from leaking out and further improves the dust suppression effect.

[0024] It should be noted that the vibration motor 505 and the motor structure are existing mature technologies. Their working principle and internal structure are known to those skilled in the art. This utility model only utilizes its function and does not improve its internal structure. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0025] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0026] 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.

Claims

1. A PVC offcut crushing recycling dust suppression device, comprising a feed inlet (1), a flap (2), a casing (4) and a barrel (5), characterized in that: The flap (2) is rotatably disposed at the opening end of the feed inlet (1), and the housing (4) is fixedly disposed on the outer wall of the feed inlet (1). The feed inlet (1) and the housing (4) are provided with through-connecting suppression holes (3). Rubber blocks (201) are symmetrically fixed at the shaft end of the flap (2), and the two rubber blocks (201) are slidably disposed in the inner cavity of the housing (4). The middle opening of the two suppression holes (3) is located on the moving path of the two rubber blocks (201). The suppression hole (3) is fixedly provided with a three-way pipe (6) at the opening on the outer wall of the housing (4). The three-way pipe (6) is fixedly connected to the cylindrical shell (5). A negative pressure dust filter assembly is provided on the cylindrical shell (5). The negative pressure dust filter assembly includes a rubber ring pad (501), a microporous filter cartridge (502), a screw cap (503), a rubber column (504), and a vibration motor (505). The rubber ring pad (501) is slidably inserted into the cylindrical shell (5). The microporous filter cartridge (502) is rotatably disposed on the rubber ring pad (501). The top opening of the cylindrical shell (5) is connected to an external negative pressure pump suction structure.

2. The dust suppression device for PVC offcut recycling according to claim 1, characterized in that: The screw cap (503) is threaded onto the side opening of the cylindrical shell (5), the rubber column (504) is rotatably mounted on the screw cap (503), the vibration motor (505) is fixedly mounted on the rubber column (504), and the vibration motor (505) abuts against the outer wall of the microporous filter cartridge (502).

3. The dust suppression device for PVC offcut recycling according to claim 2, characterized in that: The outer wall of the microporous filter cartridge (502) has a strip-shaped notch, and the part of the vibration motor (505) protruding from the rubber column (504) is inserted into the strip-shaped notch of the microporous filter cartridge (502).

4. The dust suppression device for PVC offcut recycling according to claim 1, characterized in that: There are two suppression holes (3), and the two suppression holes (3) are located on both sides of the flap (2) in the vertical state.

5. The dust suppression device for PVC offcut recycling according to claim 1, characterized in that: A motor is fixedly installed inside the housing (4). The output end of the motor is fixedly connected to the shaft end of the flip plate (2). The motor is used to drive the flip plate (2) to rotate.

6. The dust suppression device for PVC offcut recycling according to claim 1, characterized in that: The lowest point of the inner cavity of the housing (4) is provided with a discharge port, and a collection bottle (401) is threaded onto the bottom end of the discharge port.

7. The dust suppression device for PVC offcut recycling according to claim 1, characterized in that: A sealing ring is fixedly provided on the annular surface of the flap (2), and the sealing ring is pressed into contact with the inner wall of the feed inlet (1).

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