Dust prevention device for masterbatch production system

Abstract

The present application discloses a dust prevention device for a masterbatch production system, comprising a base, an annular plate, a sleeve, a protective sleeve, a driving member, a spray mechanism and a water collecting trough, wherein the base is used to place a barrel, the annular plate is placed on the top of the barrel, and the center hole of the annular plate is arranged opposite to the opening on the top of the barrel; the sleeve is rotatably connected to the inner ring position of the annular plate and the axis coincides with the axis of the barrel, and a plurality of circumferentially distributed fan blades are arranged on the outer peripheral surface of the sleeve; the protective sleeve is arranged at the outer ring position of the annular plate, and the gap between the protective sleeve and the sleeve forms a collecting channel; the driving member is used to drive the sleeve to rotate to form a downward airflow at the collecting channel; the spray mechanism is used to spray the inside of the collecting channel; the water collecting trough is located below the annular plate and is connected to the collecting channel, and is used to recover water sprayed by the spray mechanism, which is beneficial to improving the dust phenomenon in the mixed raw material transportation process without affecting the mixed raw material transportation efficiency.

Description

Technical Field

[0001] The present application relates to the field of masterbatch production and processing, and in particular to a dust prevention device for a masterbatch production system. Background Art

[0002] Masterbatch is mainly made of colorant, resin carrier, dispersing aid, etc. It is often used as pigment for various types of plastics such as plastic film, packaging film, greenhouse film, woven cloth, non-woven fabric, agricultural film, etc. Its production process mainly includes dry method and wet method, and the steps include batching and mixing, melt extrusion, pelletizing and cooling, screening and packaging, etc. In the batching and mixing process, various raw materials such as pigment, dispersant, carrier resin and other powder raw materials are accurately weighed according to production needs, the ingredients are installed in proportion and poured into the mixer for mixing, and then the mixed powder is poured into the extruder. The melt extrusion process is carried out through the extruder. The mixed powder needs to be transferred after the mixer completes the powder mixing operation and before the extruder completes the melting operation.

[0003] In the related art, after the mixed powder is fully mixed in the mixer, it needs to be received by a barrel and then transferred to the extruder and poured into the machine for processing. When the discharge volume of the mixer's feed port is large, a large amount of dust will be raised in the barrel during the loading process. Generally, a fan is used to adsorb and collect it on the side to achieve the dust removal effect, or a cloth bag is used to wrap it to form a closed channel to reduce the dust from flying to the periphery.

[0004] Regarding the above-mentioned related technologies, there are the following defects: if a fan is used for direct dust removal, excessive wind force will affect the normal falling of the mixed powder and even aggravate the dust phenomenon. If the wind force is too small, the dust removal effect cannot be achieved and there will still be dust residue, making it difficult to improve the dust removal efficiency. The use of cloth bags for wrapping and sealing is very troublesome in the assembly and disassembly of the cloth bags, which affects the transportation efficiency of the mixed powder. Therefore, there is still room for improvement. Summary of the invention

[0005] In order to improve the dust phenomenon during the raw material transportation process without affecting the raw material particle transportation efficiency, the present application provides a dust prevention device for a masterbatch production system.

[0006] The dust prevention device of the masterbatch production system provided in this application adopts the following technical solution:

[0007] A dust prevention device for a masterbatch production system, comprising:

[0008] A base and an annular plate, wherein the base is used to place the barrel, the annular plate is placed on the top of the barrel, and the center hole of the annular plate is arranged opposite to the opening on the top of the barrel;

[0009] A sleeve, the sleeve is rotatably connected to the inner circle of the annular plate and the axis of the sleeve coincides with the axis of the central tube, and the outer peripheral surface of the sleeve is provided with a plurality of circumferentially distributed fan blades;

[0010] A casing, wherein the casing is arranged at the outer ring position of the annular plate, and the gap between the casing and the sleeve forms a collecting channel;

[0011] A driving member, wherein the driving member is used to drive the sleeve to rotate, and the fan blades rotate synchronously with the sleeve and form a downward airflow at the collecting channel to suck the dust overflowing from the sleeve into the collecting channel;

[0012] A spray mechanism, the spray mechanism is used to spray the inside of the collection channel to capture dust;

[0013] The water collecting trough is located below the annular plate and is connected to the collecting channel, and is used to recover the water sprayed by the spraying mechanism.

[0014] By adopting the above technical scheme, the base is used as a support, and the annular plate is placed on the top of the barrel, and the center hole of the annular plate is aligned with the opening at the top of the barrel. The annular plate limits the position of the barrel without affecting the normal dropping of the mixed raw materials. In addition, a sleeve with fan blades is rotatably connected at the inner circle position of the annular plate, and a protective sleeve is arranged at the outer circle position of the annular plate, so that a dust collection channel is enclosed at the top of the barrel. The fan blades and the sleeve are driven by the driving member to rotate synchronously, so that the dust overflowing from the sleeve is vertically sucked downward into the collection channel, which is conducive to improving the problem of dust dispersing around, and the collection channel is sprayed by the spray mechanism to form water mist and capture the dust, which is finally collected in the water collection tank, so that there is no need to arrange cloth bags, and the dust can be adsorbed downward in time when it overflows, which is conducive to improving the dust phenomenon in the raw material transportation process without affecting the mixed raw material transportation efficiency.

[0015] Preferably, the spray mechanism includes a box for storing water, a pump body connected to the box, a spray pipe connected to the output end of the pump body, and an annular nozzle connected to the water outlet end of the spray pipe, the annular nozzle is arranged around the outer periphery of the sleeve and is located below the fan blades, and the annular nozzle is provided with a plurality of circumferentially distributed nozzles.

[0016] By adopting the above technical solution, under the action of the pump body, the water in the box is pumped to the spray pipe and the annular nozzle and sprayed out from the nozzle, which is conducive to rapid diffusion into the entire collection channel. At the same time, the airflow formed by the fan blades entrains dust and contacts the water mist in the collection channel in a timely and sufficient manner, which is conducive to improving the dust capture efficiency.

[0017] Preferably, a guide plate located below the annular nozzle is supported above the annular plate, the guide plate surrounds the outer circumference of the sleeve and tilts downward, and the water sprayed by the spray mechanism forms a water curtain at the guide plate.

[0018] By adopting the above technical solution, the water curtain on the surface of the guide plate and the water mist in the collection channel form two dust collection barriers. The airflow carrying dust is combined with the water mist and then blown towards the water curtain formed on the surface of the guide plate, further increasing the contact probability between dust and water, thereby further improving the dust capture efficiency.

[0019] Preferably, a return pipe is connected to the bottom of the water collecting tank, and the end of the return pipe away from the water collecting tank is connected to the box body. A partition is vertically arranged in the box body, and the partition divides the box body into a water supply chamber and a return chamber distributed side by side. The water supply chamber is connected to the pump body, and the return chamber is connected to the return pipe. An overflow port is arranged on the top of the partition, and the overflow port is used to connect the water supply chamber and the return chamber.

[0020] By adopting the above technical scheme, the water collected by the sump entrains dust and flows back to the reflux chamber in the box through the reflux pipe. The dust settles at the bottom of the reflux chamber, and the upper clear flow of the reflux chamber flows to the water supply chamber through the overflow port, providing clean water for the spraying mechanism, which is beneficial to improving the recycling of water.

[0021] Preferably, the driving member includes a driving wheel rotatably connected to the surface of the annular plate, a motor for driving the driving wheel to rotate, a driven wheel fixedly sleeved on the outer circumference of the sleeve, and a synchronous belt sleeved between the driven wheel and the driving wheel, and the motor is installed at the bottom of the annular plate.

[0022] By adopting the above technical solution, under the drive of the motor and the linkage of the driving wheel, the driven wheel and the synchronous belt, it is beneficial to achieve stable rotation of the sleeve. In addition, installing the motor at the bottom of the annular plate can reduce the probability of contact between the motor and water mist, which is beneficial to increasing the service life of the drive component.

[0023] Preferably, a cylinder is vertically arranged on the base, and the telescopic end of the cylinder is fixedly connected to the bottom of the annular plate.

[0024] By adopting the above technical solution, the height of the annular plate can be adjusted under the drive of the cylinder to adapt to barrels of different heights. In addition, the cylinder also limits the annular plate and can fix the position of the barrel by stabilizing the annular plate.

[0025] Preferably, an annular protective net is provided on the inner side of the top of the casing.

[0026] By adopting the above technical solution, an annular protective net is arranged on the inner side of the top of the casing, thereby forming a protective barrier on the top of the casing, which is beneficial to reduce the probability of workers accidentally touching the fan blades while preventing foreign objects from entering the inside of the casing.

[0027] Preferably, a plurality of universal wheels are provided at the bottom of the base.

[0028] By adopting the above technical solution, the base is provided with a movable function, which facilitates the positioning and transfer of the barrel.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The base is used as a support, and the annular plate is placed on the top of the barrel. The inner ring of the annular plate is rotated to connect the sleeve with the fan blades and the protective sleeve at the outer ring of the annular plate to form a dust collection channel. The fan blades and the sleeve are driven by the driving member to rotate synchronously, so that the dust overflowing from the sleeve is sucked vertically downward into the collection channel, which is conducive to improving the problem of dust scattering around. The collection channel is sprayed by the spray mechanism to form water mist and capture the dust, which is finally collected in the water collection tank, so that there is no need to arrange bags, and the dust can be adsorbed downward in time when it overflows, which is conducive to improving the dust phenomenon in the raw material transportation process without affecting the mixed raw material transportation efficiency.

[0031] 2. Through the cooperation of the guide plate and the spray mechanism, the water curtain on the surface of the guide plate and the water mist in the collection channel form two dust collection barriers. The airflow carrying dust is combined with the water mist and then blown to the water curtain formed on the surface of the guide plate, further increasing the contact probability between dust and water, thereby further improving the dust collection efficiency;

[0032] 3. The box body is divided into a water supply chamber and a reflux chamber by a partition. The dust-carrying water collected by the sump flows back to the reflux chamber in the box body through the reflux pipe. The dust settles at the bottom of the reflux chamber. The upper clear water of the reflux chamber flows to the water supply chamber through the overflow port, providing clean water for the spray mechanism, which is conducive to improving the recycling of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the coordination relationship between a dust prevention device and a barrel of a masterbatch production system in an embodiment of the present application.

[0034] Figure 2 This is a schematic structural diagram of a dust prevention device of a masterbatch production system in an embodiment of the present application with the protective tube hidden.

[0035] Figure 3 It is a schematic diagram of the structure of the interior of a protective tube in a dust prevention device of a masterbatch production system in an embodiment of the present application.

[0036] Explanation of the reference numerals in the accompanying drawings: 1. base; 11. universal wheel; 12. cylinder; 2. barrel; 3. sleeve; 31. fan blade; 4. casing; 41. annular protective net; 5. collecting channel; 6. annular plate; 61. center hole; 62. support rod; 63. water collecting trough; 7. guide plate; 8. driving part; 81. synchronous belt; 82. driven wheel; 83. motor; 84. driving wheel; 9. spray mechanism; 91. pump body; 92. box body; 93. spray pipe; 94. annular nozzle; 95. return pipe. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-3 This application is described in further detail.

[0038] The present application embodiment discloses a dust prevention device for a masterbatch production system, referring to Figure 1 and Figure 2 , including a base 1, an annular plate 6, a sleeve 3, a protective sleeve 4, a driving member 8, a spray mechanism 9 and a water collecting tank 63. The base 1 is a flat plate structure with a plurality of universal wheels 11 installed at the bottom, and the top of the base 1 is used to place the barrel 2. A center hole 61 is arranged in the middle of the annular plate 6. When the annular plate 6 is placed at the top of the barrel 2, the center hole 61 of the annular plate 6 is arranged opposite to the top opening of the barrel 2, so that the annular plate 6 limits the position of the barrel 2 without affecting the normal dropping of the mixed raw materials.

[0039] In this embodiment, two cylinders 12 are vertically mounted on the base 1, and the two cylinders 12 are symmetrically distributed on both sides of the barrel 2. The telescopic ends of the two cylinders 12 are fixedly connected to the bottom of the annular plate 6. Driven by the cylinders 12, the height of the annular plate 6 can be adjusted to adapt to barrels 2 of different heights. In addition, the cylinders 12 also limit the annular plate 6, and the position of the barrel 2 can be fixed by stabilizing the annular plate 6.

[0040] Reference Figure 2 and Figure 3In this embodiment, the sleeve 3 is rotatably connected to the inner ring position of the annular plate 6 and its axis coincides with the axis of the center hole 61. The casing 4 is fixed to the outer ring position of the annular plate 6, and the gap between the casing 4 and the sleeve 3 forms a collecting channel 5. The outer circumference of the sleeve 3 is equipped with a plurality of circumferentially distributed fan blades 31. In addition, the driving member 8 includes a driving wheel 84 rotatably connected to the surface of the annular plate 6, a motor 83 for driving the driving wheel 84 to rotate, a driven wheel 82 fixedly sleeved on the outer circumference of the sleeve 3, and a synchronous belt 81 sleeved between the driven wheel 82 and the driving wheel 84. The motor 83 is installed at the bottom of the annular plate 6, and the output shaft of the motor 83 is coaxially fixedly connected to the driving wheel 84. Driven by the motor 83 and the linkage of the driving wheel 84, the driven wheel 82 and the synchronous belt 81, the sleeve 3 can rotate stably, the fan blades 31 and the sleeve 3 rotate synchronously, and a downward airflow is formed at the collecting channel 5, so that the dust overflowing from the sleeve 3 is promptly sucked downward into the collecting channel 5, which is conducive to improving the problem of dust dispersing to the surroundings.

[0041] In this embodiment, an annular protective net 41 is provided on the inner side of the top of the protective tube 4 , thereby forming a protective barrier on the top of the protective tube 4 , which is beneficial for reducing the probability of workers accidentally touching the fan blades 31 while also preventing foreign objects from entering the interior of the protective tube 4 .

[0042] In this embodiment, the spray mechanism 9 includes a box body 92 for storing water, a pump body 91 connected to the box body 92, a spray pipe 93 connected to the output end of the pump body 91, and an annular nozzle 94 connected to the water outlet end of the spray pipe 93, wherein the box body 92 and the pump body 91 are placed on the upper surface of the base 1, and the spray pipe 93 passes through and is fixed to the casing 4, wherein the portion of the spray pipe 93 located outside the casing 4 is made of a hose material, and the portion located inside the casing 4 is made of a hard pipe material, and the annular nozzle 94 is arranged around the outer periphery of the sleeve 3 and is located below the fan blades 31, and the annular nozzle 94 is provided with a plurality of circumferentially distributed nozzles (not shown in the figure), and the spray range of the nozzles covers the entire collection channel 5 to capture dust.

[0043] In this embodiment, the water collecting tank 63 is installed on the lower surface of the annular plate 6 and is connected to the collecting channel 5, and is used to recover the water sprayed by the spray mechanism 9. A retaining net is arranged on the surface of the water collecting tank 63 to reduce the situation where debris enters the water collecting tank 63. The bottom of the water collecting tank 63 is connected to a return pipe 95, and the end of the return pipe 95 away from the water collecting tank 63 is connected to the top of the box body 92. Specifically, a partition is vertically arranged in the box body 92, and the partition divides the box body 92 into a water supply chamber and a return chamber distributed side by side, wherein the water supply chamber is connected to the pump body 91, and the return chamber is connected to the return pipe 95. An overflow port is arranged on the top of the partition, and the overflow port is used to connect the water supply chamber and the return chamber. Since the water collected in the water collection tank 63 carries dust, the water in the water collection tank 63 flows back to the reflux chamber in the box body 92 through the reflux pipe 95, and the dust settles at the bottom of the reflux chamber. The upper clear water of the reflux chamber flows to the water supply chamber through the overflow port, providing clean water for the spray mechanism 9, thereby realizing the recycling of water.

[0044] In this embodiment, a guide plate 7 located below the annular nozzle 94 is supported on the surface of the annular plate 6 through a support rod 62. The guide plate 7 surrounds the outer periphery of the sleeve 3 and tilts downward. The water sprayed from the nozzle forms a water curtain at the guide plate 7. The water curtain and the water mist in the collecting channel 5 form two dust collection barriers. The airflow carrying dust is combined with the water mist and then blown toward the water curtain formed on the surface of the guide plate 7, thereby further increasing the contact probability between dust and water, thereby further improving the dust capture efficiency.

[0045] The implementation principle of the dust prevention device of a masterbatch production system in the embodiment of the present application is as follows:

[0046] When the barrel 2 receives the material, the barrel 2 is placed on the base 1, and the cylinder 12 drives the annular plate 6 downward so that the annular plate 6 abuts against the top of the barrel 2, ensuring that the top opening of the barrel 2 is aligned with the center hole 61 of the annular plate 6. Then move the base 1 and make the sleeve 3 face the material drop port of the previous process. When receiving the material, start the driving member 8 and the spray mechanism 9 at the same time. Driven by the motor 83 of the driving member 8 and the linkage action of the driving wheel 84, the driven wheel 82 and the synchronous belt 81 of the driving member 8, it is conducive to the stable rotation of the sleeve 3. The fan blades 31 and the sleeve 3 rotate synchronously, and form a downward airflow at the collecting channel 5, so that the dust overflowing from the sleeve 3 is promptly sucked downward into the collecting channel 5, improving the problem of dust dispersing around. At the same time, the water sprayed by the nozzle forms water mist in the collecting channel 5 and forms a water curtain at the guide plate 7. The water curtain and the water mist form two dust collection barriers. The airflow carrying dust is combined with the water mist and then blown to the water curtain formed on the surface of the guide plate 7, further improving the contact probability between dust and water, thereby further improving the dust capture efficiency.

[0047] The water in the water collecting tank 63 recycles the water sprayed by the spray mechanism 9. The water collected in the water collecting tank 63 carries dust. The water recovered by the water collecting tank 63 is refluxed to the reflux chamber in the box body 92 through the reflux pipe 95. The dust settles at the bottom of the reflux chamber, and the upper clear water of the reflux chamber flows to the water supply chamber through the overflow port, providing clean water for the spray mechanism 9, thereby realizing the recycling of water.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust prevention device for a masterbatch production system, characterized in that: include: A base (1) and an annular plate (6), wherein the base (1) is used to place a barrel (2), the annular plate (6) is placed on the top of the barrel (2), and the center hole (61) of the annular plate (6) is arranged opposite to the top opening of the barrel (2); A sleeve (3), the sleeve (3) being rotatably connected to the inner ring of the annular plate (6) and having an axis that coincides with the axis of the center hole (61), and a plurality of circumferentially distributed fan blades (31) being arranged on the outer peripheral surface of the sleeve (3); A protective tube (4), wherein the protective tube (4) is arranged at the outer ring position of the annular plate (6), and the gap between the protective tube (4) and the sleeve (3) forms a collecting channel (5); A driving member (8), the driving member (8) being used to drive the sleeve (3) to rotate, the fan blade (31) rotating synchronously with the sleeve (3) and forming a downward airflow at the collecting channel (5) to suck dust overflowing from the sleeve (3) into the collecting channel (5); A spray mechanism (9), the spray mechanism (9) being used to spray the inside of the collection channel (5) to capture dust; A water collecting trough (63), the water collecting trough (63) being located below the annular plate (6) and being in communication with the collecting channel (5) and being used for recovering water sprayed by the spraying mechanism (9); The spray mechanism (9) comprises a box (92) for storing water, a pump body (91) connected to the box (92), a spray pipe (93) connected to the output end of the pump body (91), and an annular nozzle (94) connected to the water outlet end of the spray pipe (93); the annular nozzle (94) is arranged around the outer periphery of the sleeve (3) and is located below the fan blade (31); the annular nozzle (94) is provided with a plurality of circumferentially distributed nozzles, and the spray range of the nozzles covers the entire collection channel (5) to capture dust.

2. The dust prevention device for the masterbatch production system according to claim 1, characterized in that: A guide plate (7) located below the annular nozzle (94) is supported above the annular plate (6); the guide plate (7) surrounds the outer periphery of the sleeve (3) and is inclined downward; water sprayed by the spray mechanism (9) forms a water curtain at the guide plate (7).

3. The dust prevention device for the masterbatch production system according to claim 1, characterized in that: The bottom of the water collecting tank (63) is connected to a return pipe (95), and one end of the return pipe (95) away from the water collecting tank (63) is connected to the box body (92). A partition is vertically arranged in the box body (92), and the partition divides the box body (92) into a water supply chamber and a return chamber that are arranged side by side. The water supply chamber is connected to the pump body (91), and the return chamber is connected to the return pipe (95). An overflow port is arranged on the top of the partition, and the overflow port is used to connect the water supply chamber and the return chamber.

4. The dust prevention device for the masterbatch production system according to claim 1, characterized in that: The driving member (8) comprises a driving wheel (84) rotatably connected to the surface of the annular plate (6), a motor (83) for driving the driving wheel (84) to rotate, a driven wheel (82) fixedly sleeved on the outer peripheral surface of the sleeve (3), and a synchronous belt (81) sleeved between the driven wheel (82) and the driving wheel (84), and the motor (83) is installed at the bottom of the annular plate (6).

5. The dust prevention device for the masterbatch production system according to claim 1, characterized in that: The base (1) is vertically provided with a cylinder (12), and the telescopic end of the cylinder (12) is fixedly connected to the bottom of the annular plate (6).

6. The dust prevention device for the masterbatch production system according to claim 1, characterized in that: An annular protective net (41) is arranged on the inner side of the top of the casing (4).

7. The dust prevention device for the masterbatch production system according to claim 1, characterized in that: A plurality of universal wheels (11) are arranged at the bottom of the base (1).

Images