A plastic particle dedusting device

Abstract

A kind of plastic particle dust removal device, to solve the existing plastic particle dust removal device, whether it is caused by lack of filtering component and leads to dust removal effect is not good, pollute environment, or because filtering component replacement needs to stop and causes production efficiency to decline, cost increases, cannot well adapt to the technical problem of modern plastic processing industry to the demand of efficient, continuous, clean production. Including dust removal box, the inside of the dust removal box is provided with vertically oscillating oscillation box, the upper portion of the side wall of the oscillation box is provided with inlet, the bottom is provided with discharge port, the side wall of the oscillation box is provided with dust hole;The side wall of the dust removal box is provided with inlet, the bottom of the dust removal box is provided with material outlet;The inner top wall of the dust removal box is sequentially provided with first filter plate, second filter plate, first dust collection component from bottom to top;The inner bottom wall of the dust removal box is sequentially provided with third filter plate, fourth filter plate, second dust collection component from top to bottom.

Description

Technical Field

[0001] This utility model relates to the field of plastic particle processing technology, and in particular to a plastic particle dust removal device. Background Technology

[0002] In the plastics processing industry, plastic particles are the basic raw material, and the cleanliness of their surface directly affects the quality of subsequent products. If dust and impurities adhere to the surface of plastic particles, it will not only lead to appearance defects in the final plastic products, such as spots and streaks, but may also affect key indicators such as the mechanical and electrical properties of the products. Therefore, effective dust removal treatment of plastic particles is an indispensable and important step in the plastics processing flow.

[0003] Currently, various devices exist in the industry for dust removal of plastic particles. These devices attempt to remove dust from the surface of plastic particles by generating airflow with fans, using vibration screening, or spraying. However, in actual production applications, existing plastic particle dust removal devices still have significant technical shortcomings and struggle to meet the demands of efficient and continuous production.

[0004] On the one hand, some plastic particle dust removal devices lack necessary filtration components in their design. These devices can only separate dust from the surface of the plastic particles during the dust removal process, but cannot effectively intercept and collect the separated dust. The separated dust will be re-diffused into the production environment with the airflow, causing air pollution in the production workshop and endangering the health of operators. Furthermore, the diffused dust may re-adhere to the surface of the plastic particles, significantly reducing the dust removal effect and failing to meet the expected cleanliness requirements, seriously affecting the normal operation of subsequent plastic processing procedures.

[0005] On the other hand, even if some plastic particle dust collection devices are equipped with filter components, replacing or cleaning these components presents operational inconveniences. Due to the unreasonable structural design of existing devices, the connection between the filter components and the main body of the device is relatively fixed. When it is necessary to replace the filter components, the entire dust collection device must be shut down to disassemble the old filter components and install the new ones. This shutdown directly interrupts the plastic particle dust collection process, thus affecting the continuity of the entire plastic processing production line and leading to reduced production efficiency. Furthermore, frequent shutdowns and startups can increase equipment wear and tear, raise production and maintenance costs, and cause unnecessary economic losses to the company. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a plastic particle dust removal device to solve the technical problems that existing plastic particle dust removal devices, whether due to poor dust removal effect and environmental pollution caused by the lack of filter components, or due to reduced production efficiency and increased costs caused by downtime for filter component replacement, cannot well meet the technical needs of the modern plastics processing industry for efficient, continuous and clean production.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A plastic particle dust removal device includes a dust collection box, inside which is a vertically vibrating oscillating chamber. The upper part of the side wall of the oscillating chamber has a feed inlet, and the bottom has a discharge outlet. The side wall of the oscillating chamber has dust-passing holes. The side wall of the dust collection box has a feed inlet, and the bottom of the dust collection box has a discharge outlet. When the oscillating chamber moves vertically upwards, connecting the feed inlet and the discharge outlet, it provides a channel for material to enter the oscillating chamber. When the oscillating chamber moves vertically downwards, connecting the discharge outlet and the discharge outlet, it provides a channel for material to leave the oscillating chamber. The top wall of the dust collection box, from bottom to top, is provided with a first filter plate, a second filter plate, and a first dust-collecting assembly, wherein the first and second filter plates can slide horizontally out of the dust collection box. The bottom wall of the dust collection box, from top to bottom, is provided with a third filter plate, a fourth filter plate, and a second dust-collecting assembly, wherein the third and fourth filter plates can slide horizontally out of the dust collection box.

[0008] Working principle: In operation, the vibrating box is moved vertically upwards, connecting the inlet on the vibrating box with the inlet on the dust collector box, allowing raw materials to be fed into the vibrating box through both inlets. The vibrating box is then vertically vibrated, causing dust inside to escape through the dust passage and disperse into the dust collector box. The first and second dust collection components then collect the dust dispersed inside the dust collector box and outside the vibrating box. Finally, the vibrating box is moved vertically downwards, connecting the outlet on the vibrating box with the material passage on the dust collector box, allowing the dust-treated raw materials to fall out of the vibrating box through both outlets.

[0009] When the filter plates at the top of the dust collector need to be replaced or cleaned, the first or second filter plates can be removed in batches; when the filter plates at the bottom of the dust collector need to be replaced or cleaned, the third or fourth filter plates can be removed in batches.

[0010] Beneficial effects: To address the issue of existing devices requiring machine shutdown for filter component replacement, this invention innovatively designs the installation method and replacement logic of the filter plates. The first and second filter plates at the top of the dust collector, and the third and fourth filter plates at the bottom, all employ a horizontally sliding installation structure and support batch replacement and cleaning. Specifically, when replacing the upper filter plates, only the first or second filter plate can be removed, while the remaining filter plates continue to perform their filtering function; similarly, when replacing the lower filter plates, only the third or fourth filter plate can be removed, while the remaining filter plates remain in normal working condition. This batch replacement mode completely breaks the limitation of "machine shutdown required for filter component replacement," allowing the dust removal process to continue without interruption during filter component maintenance. This effectively ensures the continuous and stable operation of the plastic processing production line, avoids the decrease in production efficiency caused by downtime, reduces wear and tear on the equipment caused by frequent start-ups and shutdowns, and extends the equipment's service life. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0012] In the above attached figures: dust collector 1, inlet 101, outlet 102, first chute 11, first perforation 12, second chute 21, second perforation 22, third chute 31, third perforation 32, fourth chute 41, fourth perforation 42; vibrating box 2, inlet 201, outlet 202, dust passage hole 203, first filter plate 3, second filter plate 4, third filter plate 5, fourth filter plate 6, limiting groove 7, motor 71, drive shaft 72, irregular groove 73, first bevel gear 74, rotating shaft 75, second bevel gear 76, first moving block 77, limiting rod 78, second moving block 79. Detailed Implementation

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0014] Example: like Figure 1 As shown, the plastic particle dust removal device of this utility model has a dust collection box 1 as the main mounting frame, which integrates a vertically oscillating oscillating box 2, a multi-layer filter plate (first filter plate 3, second filter plate 4, third filter plate 5, and fourth filter plate 6) for intercepting dust, a first dust collection component and a second dust collection component for absorbing dust, and a transmission mechanism for driving the oscillating box 2 to move vertically and oscillate.

[0015] The dust collector 1 has a welded and sealed structure. Its side wall has an inlet 201, and its bottom center has a discharge port 202, which is used to discharge plastic particles after dust removal. The inner side walls of the dust collector 1 also have symmetrically arranged limiting grooves 7, which extend along the height of the dust collector 1, serving as a guide channel for the vertical movement of the vibrating box 2. Rubber sealing gaskets (made of nitrile rubber) are installed at the joints between the inlet and outlet, and at the joints between the outlet and discharge port. Felt sealing layers are installed at the joints between the filter plate and the perforations (first perforation, second perforation, etc.) to prevent dust leakage from the joint gaps.

[0016] The oscillating box 2 is located inside the dust collector 1. The upper part of its side wall has an inlet 101 corresponding to the inlet 201 of the dust collector 1, and the bottom has an outlet 102 corresponding to the outlet 202 of the dust collector 1. Several dust passage holes 203 are evenly distributed on the side wall. The diameter of the dust passage holes 203 is smaller than the particle size of the plastic particles, ensuring that dust can pass through while the plastic particles are trapped in the oscillating box 2. The two sides of the oscillating box 2 are fixedly connected to the first moving block 77 and the second moving block 79, respectively. The first moving block 77 and the second moving block 79 cooperate with the rotating shaft 75 and the limiting rod 78 in the limiting groove 7, respectively, to realize the vertical movement and oscillation of the oscillating box 2 in the dust collector 1. It should be noted that an electrically controlled opening and closing door is provided inside the feed inlet 101, which can control the connection status of the feed inlet 101. An electrically controlled opening and closing door is provided inside the discharge outlet 102, which can control the connection status of the discharge outlet 102. The setting of the opening and closing door is prior art, and those skilled in the art should be clear about its structure, principle and usage, etc., which will not be described in detail here.

[0017] A first sliding groove 11 is opened on the upper inner wall of the dust collector 1. The first sliding groove 11 extends along the width direction of the dust collector 1, and a first through hole 12 is opened on the upper side wall of the dust collector 1 at a position corresponding to the first sliding groove 11. The first through hole 12 communicates with the interior of the dust collector 1. The size of the first filter plate 3 is adapted to the first sliding groove 11 and the first through hole 12. After one end of the filter plate passes through the first through hole 12, it is horizontally slidable in the first sliding groove 11. The operator can remove and install the filter plate 3 from the dust collector 1 by pulling out the exposed end of the filter plate 3.

[0018] A second chute 21 is opened on the upper inner wall of the dust collector 1 directly above the first chute 11. The second chute 21 also extends along the width direction of the dust collector 1, and a second perforation 22 is opened on the upper side wall of the dust collector 1 at the position corresponding to the second chute 21. The assembly method of the second filter plate 4 is the same as that of the first filter plate 3. After passing through the second perforation 22, it is horizontally slidable in the second chute 21 to form a double-layer filter structure that is parallel to the first filter plate 3 vertically.

[0019] Two third sliding grooves 31 are symmetrically opened on both sides of the material inlet 202 on the lower inner wall of the dust collector 1. Both third sliding grooves 31 extend along the width direction of the dust collector 1, and third perforations 32 are opened on both lower side walls of the dust collector 1 at positions corresponding to the two third sliding grooves 31. Two third filter plates 5 are provided. The size of each third filter plate 5 is adapted to the third sliding groove 31 and the third perforation 32 on the corresponding side. After passing through the third perforation 32 on the corresponding side, they are horizontally slidably placed in the corresponding third sliding groove 31.

[0020] Two fourth chutes 41 are opened on the lower inner wall of the dust collector 1 directly above the third chutes 31. The two fourth chutes 41 also extend along the width of the dust collector 1 and are located on both sides of the material inlet 202. Fourth perforations 42 are opened on the lower side walls of the dust collector 1 at positions corresponding to the two fourth chutes 41. The fourth filter plate 6 consists of two pieces, and its assembly method is the same as that of the third filter plate 5. After passing through the fourth perforations 42 on the corresponding side, it is horizontally slidable in the corresponding fourth chutes 41 to form a double-layer filter structure that is parallel to the third filter plate 5. It should be noted that a plastic handle (made of ABS) is fixedly installed on the exposed end of the filter plate. The surface of the handle is provided with anti-slip texture to facilitate the operation of the operator. When the filter plate is pulled out, a plug (not shown in the figure, the plug is generally a wooden block with a rubber sealing gasket on the outer surface, and the size is adapted to the perforation) is placed into the corresponding perforation to prevent dust from escaping.

[0021] A motor 71 is fixedly installed on the outer wall of the dust collector 1 by bolts. The output end of the motor 71 is connected to a horizontally arranged transmission shaft 72. A shaped groove 73 is opened on the inner wall of one of the limiting grooves 7. The shaped groove 73 is connected to the outside. The end of the transmission shaft 72 away from the motor 71 rotates and passes into the shaped groove 73. A first bevel gear 74 is fixedly sleeved on the outer periphery of the rod segment of the transmission shaft 72 located in the shaped groove 73.

[0022] A vertical rotating shaft 75 is rotatably mounted in the limiting groove 7 with the aforementioned irregular groove 73 via a bearing. A second bevel gear 76 is fixedly sleeved on the outer periphery of the rod segment of the rotating shaft 75 located in the irregular groove 73. The second bevel gear 76 meshes with the first bevel gear 74 to realize the direction transmission of power from the motor 71. The rod segment of the rotating shaft 75 located in the limiting groove 7 is processed into a screw structure, and its outer periphery is threadedly connected to a first moving block 77. The end of the first moving block 77 away from the rotating shaft 75 extends out of the limiting groove 7 and is fixedly connected to the side wall of the oscillating box 2. The side wall of the first moving block 77 is tightly abutted against the inner wall of the limiting groove 7, ensuring that the rotating shaft 75 drives the first moving block 77 to move vertically along the limiting groove 7 when rotating.

[0023] A limiting rod 78 parallel to the rotating shaft 75 is fixedly installed in another limiting groove 7. The limiting rod 78 is a smooth round rod, and a second moving block 79 is slidably sleeved on its outer circumference. The end of the second moving block 79 away from the limiting rod 78 extends out of the limiting groove 7 and is fixedly connected to the other side wall of the oscillating box 2. The side wall of the second moving block 79 abuts tightly against the inner wall of the limiting groove 7. It cooperates with the first moving block 77 to realize the smooth guidance of the vertical movement of the oscillating box 2 and prevent the oscillating box 2 from deviating during the movement.

[0024] The first filter plate 3, the second filter plate 4, and the first dust collection assembly are fixedly installed on the top wall of the dust collection box 1 from bottom to top. The suction end of the first dust collection assembly faces the internal space of the dust collection box 1 and is used to suck up the dust that rises to the top of the dust collection box 1. The third filter plate 5, the fourth filter plate 6, and the second dust collection assembly are fixedly installed on the bottom wall of the dust collection box 1 from top to bottom. The suction end of the second dust collection assembly also faces the internal space of the dust collection box 1 and is used to suck up the dust that sinks to the bottom of the dust collection box 1. The first dust collection assembly and the second dust collection assembly can be industrial vacuum cleaners or centrifugal vacuum fans. The specific models can be flexibly selected according to the volume of the dust collection box 1 and the dust collection requirements.

[0025] Working principle: The motor 71 is started, which drives the transmission shaft 72 to rotate. Through the meshing of the first bevel gear 74 and the second bevel gear 76, the rotating shaft 75 is driven to rotate. The lead screw structure of the rotating shaft 75 drives the first moving block 77 to move vertically upward along the limiting groove 7, while the second moving block 79 moves upward synchronously along the limiting rod 78, thereby driving the vibration box 2 to move vertically upward until the feed port 101 of the vibration box 2 is fully connected with the feed port 201 of the dust removal box 1. At this time, plastic particles to be dusted are conveyed into the vibration box 2 through the feed port 201 and the feed port 101. After the particles are conveyed to the preset amount, the feeding is stopped.

[0026] The control motor 71 rotates in both directions, driving the rotating shaft 75 to rotate in both directions as well. This causes the first moving block 77 and the second moving block 79 to drive the oscillating box 2 to perform vertical reciprocating oscillation within the dust collection box 1. During the oscillation, plastic particles collide and rub against each other within the oscillating box 2, separating the dust adhering to their surfaces. The separated dust then drifts through the dust passage holes 203 on the side wall of the oscillating box 2 into the internal space of the dust collection box 1. Simultaneously, the first and second dust collection components are activated. The first dust collection component picks up the dust drifting to the upper part of the dust collection box 1. The dust first passes through multiple layers of interception by the second filter plate 4 and the first filter plate 3 to prevent large particles from entering the dust collection component. The second dust collection component picks up the dust drifting to the lower part of the dust collection box 1. The dust first passes through multiple layers of interception by the fourth filter plate 6 and the third filter plate 5 to ensure the cleanliness of the dust picked up by the dust collection component and reduce the risk of clogging.

[0027] After the vibration dust removal reaches the preset time (usually 3-5 minutes, which can be adjusted according to the particle cleanliness requirements), the motor 71 is controlled to rotate forward, driving the vibration box 2 to move vertically downward until the discharge port 102 of the vibration box 2 is fully connected with the material passage port 202 of the dust removal box 1; the plastic particles that have undergone dust removal in the vibration box 2 fall to the outside of the dust removal box 1 through the discharge port 102 and the material passage port 202, and enter the subsequent processing steps; after the material is discharged, the above feeding-dust removal-discharging process can be repeated to achieve continuous dust removal operation.

[0028] When the first filter plate 3 needs to be cleaned or replaced, simply pull out the exposed end of the first filter plate 3 and remove it from the first perforation 12 and the first slide groove 11. At this time, the second filter plate 4 remains in its original position and continues to perform its filtering function without stopping the machine. After the replacement is completed, insert the new or cleaned first filter plate 3 into the first perforation 12 and push it into the first slide groove 11. The replacement method of the second filter plate 4 is the same as that of the first filter plate 3, and it can be operated independently to ensure that the dust removal operation is not interrupted.

[0029] When the third filter plate 5 needs to be cleaned or replaced, pull out the exposed ends of the third filter plates 5 on both sides respectively, and remove them from the third perforation 32 and the third slide groove 31 on the corresponding side. At this time, the fourth filter plate 6 remains in its original position and continues to perform its filtering function. After the replacement is completed, insert the new or cleaned third filter plate 5 into the third perforation 32 on the corresponding side and push it into the third slide groove 31. The replacement method of the fourth filter plate 6 is the same as that of the third filter plate 5, and it supports individual batch replacement to ensure the continuity of dust removal operations.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A plastic particle dust removal device, characterized in that: The system includes a dust collector (1), inside which is a vertically vibrating oscillating box (2). The upper part of the side wall of the oscillating box (2) has an inlet (101), and the bottom has an outlet (102). The side wall of the oscillating box (2) has a dust-passing hole (203). The side wall of the dust collector (1) has an inlet (201), and the bottom of the dust collector (1) has a outlet (202). When the oscillating box (2) moves vertically upwards, connecting the inlet (101) with the outlet (201), it provides a channel for materials to enter the oscillating box (2). When the oscillating box (2) moves vertically upwards... After moving straight down to connect the discharge port (102) with the feed port (202), it is used to provide a channel for the material to leave the vibrating box (2); the top wall of the dust collector (1) is provided with a first filter plate (3), a second filter plate (4) and a first dust collection assembly from bottom to top, wherein the first filter plate (3) and the second filter plate (4) can slide horizontally out of the dust collector (1); the bottom wall of the dust collector (1) is provided with a third filter plate (5), a fourth filter plate (6) and a second dust collection assembly from top to bottom, wherein the third filter plate (5) and the fourth filter plate (6) can slide horizontally out of the dust collector (1).

2. The plastic particle dust removal device according to claim 1, characterized in that: The upper inner wall of the dust collector (1) is provided with a first sliding groove (11), which extends along the width direction of the dust collector (1). The upper side wall of the dust collector (1) is provided with a first through hole (12) corresponding to the first sliding groove (11), and the first through hole (12) communicates with the inside of the dust collector (1). The first filter plate (3) passes through the first through hole (12) and slides horizontally in the first sliding groove (11).

3. The plastic particle dust removal device according to claim 2, characterized in that: The upper inner wall of the dust collector (1) is also provided with a second sliding groove (21). The second sliding groove (21) extends along the width direction of the dust collector (1) and is located above the first sliding groove (11). The upper side wall of the dust collector (1) is provided with a second through hole (22) at a position corresponding to the second sliding groove (21). The second through hole (22) communicates with the interior of the dust collector (1). The second filter plate (4) passes through the second through hole (22) and slides horizontally in the second sliding groove (21).

4. The plastic particle dust removal device according to claim 1, characterized in that: The lower inner wall of the dust collector (1) is provided with two third sliding grooves (31), which are located on both sides of the material inlet (202). Both third sliding grooves (31) extend along the width direction of the dust collector (1). The lower two side walls of the dust collector (1) are provided with third through holes (32) at positions corresponding to the two third sliding grooves (31). Both third through holes (32) are connected to the interior of the dust collector (1). The third filter plate (5) is provided in two pieces, which are provided with corresponding third through holes (32) and are horizontally slidably disposed in the corresponding third sliding grooves (31).

5. A plastic particle dust removal device according to claim 4, characterized in that: The lower inner wall of the dust collector (1) is provided with two fourth sliding grooves (41). The two fourth sliding grooves (41) are located on both sides of the material inlet (202). Both fourth sliding grooves (41) extend along the width direction of the dust collector (1) and are located above the third sliding groove (31). The lower two side walls of the dust collector (1) are provided with fourth through holes (42) at positions corresponding to the two fourth sliding grooves (41). Both fourth through holes (42) are connected to the interior of the dust collector (1). The fourth filter plate (6) is provided in two pieces. The two fourth filter plates (6) are provided with corresponding fourth through holes (42) and are horizontally slidably located in the corresponding fourth sliding grooves (41).

6. The plastic particle dust removal device according to claim 1, characterized in that: The dust collector (1) has two limiting grooves (7) on both sides. The two limiting grooves (7) extend along the height of the dust collector (1). A motor (71) is fixed on the outer wall of the dust collector (1). The output end of the motor (71) is connected to a horizontal transmission shaft (72). One of the limiting grooves (7) has a shaped groove (73) on its inner wall. The shaped groove (73) is connected to the outside. The transmission shaft (72) is rotatably located in the shaped groove (73). The bottom end of the transmission shaft (72) rotatably passes through the rotating limiting groove (7) and is located in the shaped groove (73). A first bevel gear (74) is fixed on the outer periphery of the rod segment of the transmission shaft (72) located in the shaped groove (73). A vertical rotating shaft (75) is rotatably located in one of the limiting grooves (7). The rotating shaft (75) is located in the shaped groove (73). A second bevel gear (76) is fixedly provided on the outer periphery of the rod segment, and the first bevel gear (74) meshes with the second bevel gear (76); the rod segment of the rotating shaft (75) located in the limiting groove (7) is a screw structure, and a first moving block (77) is threadedly connected to its outer periphery. One end of the first moving block (77) extends out of the limiting groove (7) and is fixedly connected to the oscillating box (2). The side wall of the first moving block (77) abuts against the inner wall of the sliding groove; a limiting rod (78) parallel to the rotating shaft (75) is fixedly provided in another limiting groove (7). The limiting rod (78) is a smooth round rod. A second moving block (79) is slidably connected to the outer periphery of the limiting rod (78). One end of the second moving block (79) extends out of the limiting groove (7) and is fixedly connected to the oscillating box (2). The side wall of the second moving block (79) abuts against the inner wall of the limiting groove (7).

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