A resin production filtering device

Abstract

This invention belongs to the field of resin production technology, and specifically relates to a resin production filtration device, including a housing with a feeding hopper inside. A feeding frame is fixedly connected to the bottom of the feeding hopper, and a filter screen is located below the feeding frame. Two limiting slide rods are fixedly connected to the outer walls of both sides of the filter screen. The two limiting slide rods on the same side penetrate the side wall of the housing and are fixedly connected to a connecting rod. Two L-shaped plates are fixedly connected to the top of the filter screen, and the tops of the two L-shaped plates are fixedly connected to the feeding frame. A motor is fixedly installed on the outer wall of the housing, and a vibration assembly connected to the connecting rod is mounted on the stirring shaft. The motor drives the stirring shaft to rotate, which in turn drives a first bevel gear to rotate. The first bevel gear drives a second bevel gear and a support shaft to rotate, which in turn drives a cam to rotate. By causing the cam to rotate and abut against the connecting rod, the connecting rod drives the four limiting slide rods and the filter screen to vibrate left and right, preventing impurities from clogging the filter holes and thus improving filtration efficiency.

Description

Technical Field

[0001] This invention belongs to the field of resin production technology, and in particular relates to a resin production filtration device. Background Technology

[0002] Resin generally refers to an organic polymer that softens or melts when heated, tends to flow under external force when softened, and is solid, semi-solid, or sometimes liquid at room temperature. In a broader sense, any polymer compound that can be used as a raw material for processing plastic products is called resin. Resin is now widely used in molding compounds, adhesives, coatings, foam plastics, inks, etc. Although its usage is not as high as unsaturated polyester resin and epoxy resin, it plays an important role in various fields such as national defense, construction, transportation, and chemical industries, and is used not only in resin form but also in composite materials.

[0003] During the resin production process, some materials need to be dispersed and filtered to maintain their purity. This requires the use of resin production filtration devices. Most existing filtration devices have fixed filter screens. When filtering some small impurities, the existing filter screens may clog the mesh, resulting in a slow filtration speed. When there are a lot of impurities on the filter screen, the filtration efficiency will decrease.

[0004] Therefore, we propose a resin production filtration device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a resin production filtration device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a resin production filtration device, comprising a housing, a feeding hopper fixedly connected to the inner side of the housing, a feeding frame fixedly connected to the bottom of the feeding hopper, L-shaped plates on both sides of the feeding frame, the bottom of the L-shaped plates being flush with the side of the filter screen, a filter screen disposed below the feeding frame, the filter screen having multiple filter holes at its bottom, and two limiting slide rods fixedly connected to the outer walls of both sides of the filter screen, the ends of the two limiting slide rods on the same side away from the filter screen passing through an annular hole opened on the side of the housing and fixedly... A connecting rod is fixedly connected to the box. A locking assembly is provided in the annular hole to limit the position of the limiting slide rod. A stirring box is fixedly connected to the inside of the box below the filter screen. A telescopic mechanism is provided on the stirring blade to change the length of the stirring blade. A stirring shaft is rotatably connected to the inside of the box. Multiple sets of stirring blades are fixedly connected to the stirring shaft. A motor is fixedly installed on the outer wall of the box. One end of the stirring shaft passes through the side wall of the box and is fixedly connected to the output end of the motor. A vibration assembly connected to the connecting rod is provided on the stirring shaft.

[0007] The bottom of the mixing box is connected to the discharge port via a connecting component, which is used to control the connection and separation between the mixing box and the discharge port.

[0008] Furthermore, the vibration assembly includes a first bevel gear, a second bevel gear, a support shaft, a fixed plate, and a cam. The first bevel gear is fixedly mounted on the stirring shaft. The fixed plate is fixedly connected to the outer wall of the housing. The support shaft is rotatably connected to the fixed plate. The second bevel gear is fixedly mounted at the bottom end of the support shaft and meshes with the first bevel gear. The cam is fixedly connected to the top end of the support shaft and is used to abut against the connecting rod.

[0009] Furthermore, a feeding plate is fixedly connected to the inner side of the feeding frame, and the feeding plate has multiple evenly distributed feeding holes.

[0010] Furthermore, springs are fitted on the outer sides of all four limiting slide rods, and the two ends of the springs are fixedly connected to the outer wall of the filter screen and the inner wall of the box, respectively.

[0011] Furthermore, the filter screen has a dirt removal port on its side wall, and a mounting plate is provided inside the dirt removal port on the side wall of the filter screen. The side wall of the filter screen also has a mounting groove that engages with the mounting plate.

[0012] Furthermore, a feeding port is provided on the top wall of the box, and a cover plate is hinged to the top wall of the box inside the feeding port. A handle is fixedly connected to the upper surface of the cover plate.

[0013] Furthermore, the outer side of the discharge port is connected to the inside of the housing via a connector, and a solenoid valve is installed inside the discharge port.

[0014] Furthermore, a collection box is provided at the bottom inside the box, and a door is provided on the outer side of the front of the box, with a lock connected to the box installed on the door.

[0015] Furthermore, a dust removal pump is fixedly installed on the back of the outer side wall of the housing. A connecting conduit is fixedly connected to the top of the dust removal pump. A U-shaped conduit is fixedly connected to the top of the connecting conduit. Both ends of the U-shaped conduit are fixedly connected to suction conduits. Both suction conduits penetrate the side wall of the housing and are fixedly connected to a suction hopper. An L-shaped conduit is fixedly connected to the side end of the dust removal pump. A dust removal bag is provided at the bottom end of the L-shaped conduit.

[0016] Furthermore, a fixing sleeve is fixedly connected to the outer periphery of the bottom end of the L-shaped duct, and a binding rope is provided on the outer periphery of the fixing sleeve. The dust collector bag is connected and fixed to the fixing sleeve by the binding rope.

[0017] Compared with existing technologies, the advantages of this invention are:

[0018] 1. This invention uses a filter screen to filter out impurities. A motor drives a stirring shaft to rotate, which in turn drives multiple sets of stirring blades to stir the resin raw materials in the mixing box, making the raw materials evenly mixed. At the same time, the stirring shaft drives the first bevel gear to rotate, which in turn drives the second bevel gear and the support shaft to rotate. The support shaft drives the cam to rotate, and by causing the cam to rotate and abut against the connecting rod, the connecting rod drives the four limit slide rods and the filter screen to vibrate left and right, so that impurities do not clog the filter holes, thereby improving the filtration efficiency.

[0019] 2. This invention uses multiple evenly distributed feed holes to ensure uniform feeding of resin raw materials into the feed frame. At the same time, the filter screen will drive the feed frame and the feeding hopper to vibrate, making the feeding smoother.

[0020] 3. This invention starts a dust pump, which absorbs the dust generated inside the box through two dust collection buckets, and then inputs the dust into two dust collection pipes, then into a U-shaped pipe, then into an L-shaped pipe through a connecting pipe, and finally stores the dust through a dust collection bag. The dust collection bag is fixed and removed by ropes, which facilitates cleaning of the dust collection bag. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention, viewed from the front.

[0023] Figure 3 This is a structural schematic diagram of the invention from another perspective;

[0024] Figure 4 This is the present invention. Figure 1 Enlarged structural diagram at point A;

[0025] Figure 5 This is a schematic diagram of the internal side view of the housing of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the feed frame and filter screen of the present invention;

[0027] Figure 7 This is a schematic diagram of the connecting component and the limiting slide bar structure of the present invention;

[0028] Figure 8 This is a schematic diagram showing another connection state between the mixing box and the filter screen of the present invention.

[0029] In the diagram: 1. Box body; 2. Feed hopper; 3. Feed frame; 4. Filter screen; 5. Filter holes; 6. Limiting slide bar; 7. Connecting rod; 8. L-shaped plate; 9. Mixing box; 10. Mixing shaft; 11. Mixing blade; 12. Motor; 13. First bevel gear; 14. Second bevel gear; 15. Support shaft; 16. Fixing plate; 17. Cam; 18. Feeding plate; 19. Feeding hole; 20. Spring; 21. Mounting plate; 22. Cover plate; 23. Discharge port; 24. Collection box; 25. Box door; 26. Dust pump; 27. Connecting conduit; 28. U-shaped conduit; 29. ​​Dust suction conduit; 30. Dust suction hopper; 31. L-shaped conduit; 32. Dust collector bag; 33. Fixing sleeve; 34. Binding rope. Detailed Implementation

[0030] The following examples are for illustrative purposes and are not intended to limit the scope of the invention. Example 1

[0031] like Figure 1-6 As shown, a resin production filtration device includes a housing 1. A feeding port is provided on the top wall of the housing 1. A cover plate 22 is hinged to the top wall of the housing 1 within the feeding port. A handle is fixedly connected to the upper surface of the cover plate 22. The cover plate 22 is opened by the handle, allowing resin raw material to be added into the housing 1 through the feeding port. A feeding hopper 2 is provided inside the housing 1. A feeding frame 3 is fixedly connected to the bottom of the feeding hopper 2. A feeding plate 18 is fixedly connected to the inner side of the feeding frame 3. The feeding plate 18 has multiple evenly distributed feeding holes 19. Resin raw material is added into the feeding hopper 2 and discharged through the feeding frame 3. The multiple evenly distributed feeding holes 19 ensure uniform discharge of the resin raw material, preventing excessive resin material discharge and accumulation.

[0032] A filter screen 4 is installed below the feed frame 3. The filter screen 4 has multiple filter holes 5 at its bottom. Resin raw materials from the feed frame 3 fall into the filter screen 4 and are filtered through the filter holes 5 to remove impurities. Two limiting slide rods 6 are fixedly connected to the outer walls of both sides of the filter screen 4. The two limiting slide rods 6 on the same side penetrate the side wall of the housing 1 and are fixedly connected to connecting rods 7. Springs 20 are fitted on the outer sides of all four limiting slide rods 6. The two ends of the springs 20 are fixedly connected to the outer wall of the filter screen 4 and the inner wall of the housing 1, respectively. The four limiting slide rods 6 support the filter screen 4 and, in conjunction with the springs 20, facilitate the vibration of the filter screen 4. Two L-shaped plates 8 are fixedly connected to the top of the filter screen 4. The tops of the two L-shaped plates 8 are fixedly connected to the feed frame 3, supporting both the feed frame 3 and the feeding hopper 2.

[0033] A mixing box 9 is fixedly connected to the inner side of the box 1 below the filter screen 4. The longitudinal section of the mixing box 9 is U-shaped. The mixing box 9 is fixedly connected to the inner wall of the box 1. The resin raw material filtered by the filter screen 4 falls into the mixing box 9. A stirring shaft 10 is rotatably connected to the inner side of the box 1. Multiple sets of stirring blades 11 are fixedly connected to the stirring shaft 10. A motor 12 is fixedly installed on the outer wall of the box 1. One end of the stirring shaft 10 passes through the side wall of the box 1 and is fixedly connected to the output end of the motor 12. The motor 12 drives the stirring shaft 10 to rotate, and the stirring shaft 10 drives the multiple sets of stirring blades 11 to rotate, stirring the resin raw material in the mixing box 9 to make the raw material evenly mixed.

[0034] like Figure 1 , Figure 4 and Figure 6 As shown, a vibration assembly connected to the connecting rod 7 is provided on the stirring shaft 10. The vibration assembly includes a first bevel gear 13, a second bevel gear 14, a support shaft 15, a fixed plate 16, and a cam 17. The first bevel gear 13 is fixedly installed on the stirring shaft 10. The fixed plate 16 is fixedly connected to the outer wall of the housing 1. The support shaft 15 is rotatably connected to the fixed plate 16. The second bevel gear 14 is fixedly installed at the bottom end of the support shaft 15 and meshes with the first bevel gear 13. The cam 17 is fixedly connected to the top end of the support shaft 15. The cam 17 is used to abut against the connecting rod 7. When the stirring shaft 10 rotates, it drives the first bevel gear 13 to rotate. The first bevel gear 13 drives the second bevel gear 14 and the support shaft 15 to rotate. The support shaft 15 drives the cam 17 to rotate. By making the cam 17 rotate and abut against the connecting rod 7, the four limiting slide rods 6 and the filter screen 4 vibrate left and right through the connecting rod 7, so that the impurities will not clog the filter holes 5, thereby improving the filtration efficiency.

[0035] like Figure 2 and Figure 3 As shown, a dust pump 26 is fixedly installed on the back of the outer side wall of the housing 1. A connecting conduit 27 is fixedly connected to the top of the dust pump 26, and the connecting conduit 27 is connected to the inlet end of the dust pump 26. A U-shaped conduit 28 is fixedly connected to the top of the connecting conduit 27. Both ends of the U-shaped conduit 28 are fixedly connected to suction conduits 29. Both suction conduits 29 penetrate the side wall of the housing 1 and are fixedly connected to suction hoppers 30. An L-shaped conduit 31 is fixedly connected to the side end of the dust pump 26, and the L-shaped conduit 31 is connected to the outlet end of the dust pump 26. A dust collection bag 32 is provided at the bottom end of the L-shaped conduit 31. When the dust pump 26 is started, the dust generated in the housing 1 is absorbed through the two suction hoppers 30 and fed into the two suction conduits 29, then into the U-shaped conduit 28, then into the L-shaped conduit 31 through the connecting conduit 27, and finally stored through the dust collection bag 32. A fixing sleeve 33 is fixedly connected to the outer periphery of the bottom end of the L-shaped duct 31. A binding rope 34 is provided on the outer periphery of the fixing sleeve 33. The dust collector bag 32 is connected and fixed to the fixing sleeve 33 through the binding rope 34. The dust collector bag 32 can be fixed and removed by the binding rope 34, which facilitates the cleaning of the dust collector bag 32.

[0036] like Figure 1 , Figure 2 and Figure 5 As shown, a discharge port 23 is fixedly provided at the bottom of the mixing box 9. A solenoid valve is installed inside the discharge port 23 to discharge the resin raw material inside the mixing box 9. A collection box 24 is provided at the bottom inside the box body 1, and a door 25 is provided on the outer side of the front of the box body 1. A door lock connected to the box body 1 is installed on the door 25, and the resin raw material is collected through the collection box 24.

[0037] like Figure 1 , Figure 2 and Figure 6 As shown, the filter screen 4 has a dirt removal port on its side wall. An installation plate 21 is installed inside the dirt removal port on the side wall of the filter screen 4. An installation groove is provided on the side wall of the filter screen 4 to engage with the installation plate 21. By opening the box door 25 and taking out the installation plate 21 upwards, the debris inside the filter screen 4 can be cleaned.

[0038] The working principle of this invention is as follows: Resin raw material is added into the box 1, and the resin raw material is added into the feeding hopper 2. It is fed through the feeding frame 3 and through multiple evenly distributed feeding holes 19 to ensure uniform feeding. The resin raw material in the feeding frame 3 falls into the filter screen 4 and is filtered through multiple filter holes 5 to remove impurities. The resin raw material filtered by the filter screen 4 falls into the mixing box 9. The motor 12 drives the stirring shaft 10 to rotate, and the stirring shaft 10 drives multiple sets of stirring blades 11 to rotate, stirring the resin raw material in the mixing box 9 to make the raw material evenly mixed. At the same time, the stirring shaft 10 drives the first bevel gear 13 to rotate, and the first bevel gear 13 drives the second bevel gear 14 and the support shaft 15 to rotate. The support shaft 15 drives the cam 17 to rotate. By making the cam 17 rotate and abut against the connecting rod 7, the connecting rod 7 drives the four limit sliding rods 6 and the filter screen 4 to vibrate left and right, so that impurities will not clog the filter holes 5, thereby improving the filtration efficiency. At the same time, the filter screen 4 will drive the feeding frame 3 and the feeding hopper 2 to vibrate, making the feeding smoother.

[0039] During the operation of the device, dust will be generated. The dust pump 26 is started, and the dust generated in the box 1 is absorbed through the two dust suction buckets 30. The dust is then fed into the two dust suction pipes 29, then into the U-shaped pipe 28, and then into the L-shaped pipe 31 through the connecting pipe 27. Finally, the dust is stored through the dust collection bag 32. The dust collection bag 32 is fixed and removed by the binding rope 34, which facilitates the cleaning of the dust collection bag 32. Example 2

[0040] In actual use, operators found that when the device screens impurities in raw materials, as the screening time progresses, more and more impurities accumulate in the filter screen 4 and cover the bottom of the filter screen 4. This prevents the raw materials entering the filter screen 4 from being conveyed downwards through the filter screen 4. At the same time, if some impurities get stuck in the filter holes 5 on the filter screen 4 during the screening process, the device cannot remove the impurities from the holes by simply vibrating left and right. Therefore, in order to solve the above technical problems, the device is improved according to the method described in this embodiment.

[0041] like Figure 7-8 As shown, the outer side of the discharge port 23 is connected to the inside of the box 1 through a connector. A connecting component is provided between the discharge port 23 and the mixing box 9. The connecting component is used to control the connection and separation between the mixing box 9 and the discharge port 23. A telescopic mechanism is provided on the mixing blade 11. The telescopic mechanism is used to change the length of the mixing blade 11.

[0042] First, when the raw materials are screened by the device, the motor 12 on the outside of the drive housing 1 is started, and the output shaft of the motor 12 drives the stirring shaft 10 to rotate, which in turn drives the stirring blades 11 to rotate, thus fully stirring the raw materials in the stirring box 9. At the same time, the first bevel gear 13 on the output shaft drives the second bevel gear 14 to rotate, causing the support shaft 15 to rotate. The support shaft 15 drives the cam 17 to rotate, and the cam 17 rotates and abuts against the connecting rod 7. In turn, the connecting rod 7 drives the four limit slide rods 6 and the filter screen 4 to vibrate left and right. During the left and right vibration of the filter screen 4, the filter screen 4 will contact and collide with the L-shaped plate 8, causing the feed frame 3 to vibrate, thereby preventing large pieces of debris from getting stuck in the feed hole 19, which would prevent the raw materials from entering the filter screen 4 from the feed frame 3.

[0043] Secondly, when the weight sensor inside the mixing box 9 detects that the weight of the raw material inside the mixing box 9 has not changed for a long time, the control system determines that the filter holes 5 in the filter screen 4 are blocked by debris, preventing the raw material from passing through the filter screen 4 and entering the mixing box 9. In this state, the control unit controls the telescopic mechanism on the stirring blade 11 closest to the filter screen 4 to extend, so that the stirring blade 11 contacts the bottom of the filter screen 4. During the left and right vibration of the filter screen 4, the contact and collision between the stirring blade 11 and the filter screen 4 causes the filter screen 4 to vibrate up and down, causing the debris stuck in the filter holes 5 to separate from the filter holes 5. When the stirring blade 11 moves away from the filter screen 4, the control unit controls the telescopic mechanism on the stirring blade 11 to retract, preventing the stirring blade 11 from contacting the mixing box 9 and scratching the mixing box 9. This effectively solves the problem that the filter holes 5 are blocked by debris, preventing the raw material from passing through the filter screen 4 and entering the mixing box 9.

[0044] Finally, when the filter screen 4 is vibrated by the stirring blade 11, and the weight sensor still does not detect a change in the weight of the raw material in the mixing box 9, the control unit determines that there is too much accumulated debris in the filter screen 4, causing the raw material entering the filter screen 4 to be unable to move into the mixing box 9 through the filter holes 5. At this time, the control unit controls the locking assembly to unlock, allowing the limit slide rod 6 to rotate freely. In this state, although the limit slide rod 6 is in a free-rotation state, the filter screen 4 remains horizontal and will not rotate because the bottom of the filter screen 4 is in contact with the top of the mixing box 9. When the control unit controls the connecting assembly to unlock and simultaneously controls the stirring blade 11 near the discharge port 23 to extend, the stirring blade 11 will contact the bottom of the mixing box 9 and... The mixing box 9 is rotated, which in turn drives the filter screen 4 to rotate, causing the filter screen 4 to tilt and concentrate the impurities inside the filter screen 4 to one side. Then, the control unit controls the stirring blade 11 to quickly reverse so that the filter screen 4 returns to its initial state. During this process, the impurities concentrated in the filter screen 4 will be lifted up by the thrust. Since the filter screen 4 is still moving left and right, the lifted impurities will fall directly into the mixing box 9 under the action of gravity. When the weight sensor detects that the volume of impurities in the mixing box 9 has increased to a preset value, the device is controlled to return to its initial state, thereby moving the impurities in the filter screen 4 into the mixing box 9 and discharging them through the mixing box 9. This solves the problem of having to stop the machine to clean the filter screen 4 due to excessive impurities, and improves the filtration efficiency.

[0045] It should be noted that when there are too many impurities in the filter screen 4, preventing the raw materials from entering the mixing box 9, the impurities discharged from the discharge port 23 can be collected by replacing the collection box 24 when processing the impurities in the filter screen 4, so as to prevent the impurities from mixing with the raw materials again. At the same time, during the process of processing the impurities, some raw materials are discharged together with the impurities, and this part of the raw materials can be filtered again through the device.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A resin production filtering device comprising a tank, characterized by, A feeding hopper is fixedly connected to the inside of the box. A feeding frame is fixedly connected to the bottom of the feeding hopper. L-shaped plates are provided on both sides of the feeding frame. The bottom of the L-shaped plates is flush with the side of the filter screen. A filter screen is provided below the feeding frame. Multiple filter holes are opened at the bottom of the filter screen. Two limiting slide rods are fixedly connected to the outer walls of both sides of the filter screen. The ends of the two limiting slide rods on the same side away from the filter screen pass through an annular hole opened on the side of the box and are fixedly connected to a connecting rod. A locking component is provided in the annular hole. The locking component is used to limit the limiting slide rods. A stirring box is fixedly connected to the inside of the box below the filter screen. A stirring shaft is rotatably connected to the inside of the box. Multiple sets of stirring blades are fixedly connected to the stirring shaft. A motor is fixedly installed on the outer wall of the box. One end of the stirring shaft passes through the side wall of the box and is fixedly connected to the output end of the motor. A vibration component connected to the connecting rod is provided on the stirring shaft. The stirring blade is equipped with a telescopic mechanism, which is used to change the length of the stirring blade. The bottom of the mixing box is connected to the discharge port via a connecting component, which is used to control the connection and separation between the mixing box and the discharge port.

2. The resin production filtering device according to claim 1, wherein The vibration assembly includes a first bevel gear, a second bevel gear, a support shaft, a fixed plate, and a cam. The first bevel gear is fixedly mounted on the stirring shaft. The fixed plate is fixedly connected to the outer wall of the housing. The support shaft is rotatably connected to the fixed plate. The second bevel gear is fixedly mounted at the bottom end of the support shaft and meshes with the first bevel gear. The cam is fixedly connected to the top end of the support shaft and is used to abut against the connecting rod.

3. The resin production filtering device according to claim 1, wherein A feeding plate is fixedly connected to the inner side of the feeding frame, and the feeding plate has multiple evenly distributed feeding holes.

4. The resin production filtering device according to claim 1, wherein Each of the four limiting slide rods is fitted with a spring on its outer side, and the two ends of the spring are fixedly connected to the outer wall of the filter screen and the inner wall of the box, respectively.

5. The resin production filtering device according to claim 1, wherein The filter screen has a dirt removal port on its side wall, and a mounting plate is provided inside the dirt removal port on the side wall of the filter screen. The side wall of the filter screen has a mounting groove that engages with the mounting plate.

6. The resin production filtering device according to claim 1, wherein The top wall of the box is provided with a feeding port, and a cover plate is hinged to the top wall of the box inside the feeding port. A handle is fixedly connected to the upper surface of the cover plate.

7. The resin production filtering device according to claim 1, wherein The outer side of the discharge port is connected to the inside of the box via a connector, and a solenoid valve is installed inside the discharge port.

8. The resin production filtering device according to claim 1, wherein A collection box is provided at the bottom inside the box, and a door is provided on the outer side of the front of the box, with a lock connected to the box installed on the door.

9. The resin production filtering device according to claim 1, wherein A dust removal pump is fixedly installed on the back of the outer side wall of the housing. A connecting pipe is fixedly connected to the top of the dust removal pump. A U-shaped pipe is fixedly connected to the top of the connecting pipe. Both ends of the U-shaped pipe are fixedly connected to suction pipes. Both suction pipes penetrate the side wall of the housing and are fixedly connected to a suction hopper. An L-shaped pipe is fixedly connected to the side of the dust removal pump. A dust removal bag is provided at the bottom of the L-shaped pipe.

10. The resin production filtering device according to claim 9, wherein A fixing sleeve is fixedly connected to the outer periphery of the bottom end of the L-shaped duct, and a binding rope is provided on the outer periphery of the fixing sleeve. The dust collector bag is connected and fixed to the fixing sleeve by the binding rope.

Images