Powder material collecting device in coating production process

Abstract

The utility model relates to the technical field of powder collection, in particular to a powder material collecting device in the coating production process. The powder material capturing rate can be increased, and the powder material recycling amount is increased. Comprising a frame body, a fan, a cyclone settler and a secondary dust catching mechanism, the cyclone settler and the secondary dust catching mechanism are mounted on the frame body, the cyclone settler comprises a first barrel, an air inlet pipe and an air outlet pipe, the air inlet pipe extends into the first barrel in the tangential direction of the outer circle of the first barrel, and the air outlet pipe extends into the first barrel from the top of the first barrel; the secondary dust catching mechanism comprises a second barrel body, an exhaust pipe mounted at the top of the second barrel body, an inner supporting frame integrally connected with the exhaust pipe and a dust removing filter bag arranged on the inner supporting frame in a sleeving manner; the draught fan is installed at the top of the first barrel, the input end of the draught fan communicates with the output end of the air outlet pipe, the output end of the draught fan extends into the second barrel, and material collecting barrels are installed at the bottom of the first barrel and the bottom of the second barrel correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of powder collection, in particular to a powder material collecting device in a coating production process. Background Art

[0002] As we all know, various scraps and dust are often produced during the paint production process, and the dust is mainly powdered paint raw materials. This part of dust flies everywhere, causing dust pollution, which can easily cause great harm to the health of workers and cause waste of powdered paint raw materials.

[0003] For example, a Chinese utility model patent discloses a dust recovery device for a powder coating powder outlet (publication (announcement) number CN205128575U), which includes a sealed collecting cover and a material collecting platform. The sealed collecting cover is fixedly installed on the powder coating production equipment's powder outlet, the material collecting platform is arranged below the collecting box, the sealed collecting cover includes a fixed plate and an anti-overflow baffle, the powder outlet is arranged in the middle of the fixed plate, a return port is arranged on the side of the powder outlet, a dust recovery pipe is arranged above the return port, and the dust recovery pipe is connected to the feeding port of the powder coating production equipment through a return fan; the sealed collecting cover added to the powder outlet recovers the flying dust coating in the collecting box, and returns the recovered dust coating to the feeding port, thereby avoiding unnecessary waste; the device has good overall sealing performance, simple operation, and good practical effect.

[0004] However, when the inventor implemented this device, he found the following defects: the flying powder material was sucked into the collection box for collection by the fan. Due to the high wind pressure in the recovery box, the powder material sedimentation amount was low, the powder material capture rate was poor, and the powder material collection effect needed to be further improved. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a powder material collecting device in a coating production process, which can improve the powder material capture rate and increase the powder material recovery amount.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a powder material collection device in a coating production process, comprising a frame, a fan, a cyclone settler installed on the frame and a secondary dust collection mechanism, the cyclone settler comprising a first cylinder, an air inlet pipe extending tangentially into the first cylinder along the outer circle of the first cylinder, and an air outlet pipe extending from the top of the first cylinder into the first cylinder, the secondary dust collection mechanism comprising a second cylinder, an exhaust pipe installed on the top of the second cylinder, an inner support frame integrally connected to the exhaust pipe, and a dust filter bag mounted on the inner support frame; the fan is installed on the top of the first cylinder, the input end of the fan is connected to the output end of the outlet pipe, the output end of the fan extends into the second cylinder, and a collecting barrel is installed at the bottom of the first cylinder and the second cylinder; further, the interior of the collecting barrel is connected to the discharge port at the bottom of the corresponding first cylinder or second cylinder.

[0007] As a preferred solution, it also includes a cleaning component for adsorbing powder on the outer wall of the dust filter bag, the cleaning component includes an annular brush slidably installed up and down at the dust filter bag, two lifting rods fixedly connected to the annular brush, and a tension spring sleeved on the lifting rod, the lifting rod extends from the top of the second cylinder, and the lifting rod is elastically connected to the top of the second cylinder through the tension spring; further, the lifting rod can be slidably installed on the top of the second cylinder up and down, the tension spring is sleeved on the upper part of the lifting rod, one end of the tension spring is fixedly connected to the top of the second cylinder, and the other end of the tension spring is fixedly connected to the upper part of the lifting rod, and a lifting handle is provided on the top of the lifting rod.

[0008] As a preferred solution, a ring frame with an outer diameter larger than the outer diameter of the ring brush is provided at the bottom of the dust removal filter bag.

[0009] As a preferred solution, an inclined slope is provided on the ring frame.

[0010] As a preferred solution, the collecting barrel includes an open barrel, a top cover and a snap lock, the top cover is fixedly connected to the corresponding first barrel body and second barrel body, the open barrel and the top cover are detachably connected by the snap lock, and a gap of 10-20 cm is left between the bottom of the open barrel and the ground.

[0011] As a preferred solution, a flexible pipe portion is provided at the air inlet pipe, and a multi-air outlet joint is installed at the port of the air inlet pipe.

[0012] As a preferred solution, an arc-shaped guide plate is installed in the second cylinder near the connection between the fan output end and the second cylinder, and a plurality of evenly distributed through holes are provided on the arc-shaped guide plate.

[0013] As a preferred solution, a push-pull frame is installed on the frame body, and universal wheels are installed at the bottom of the frame body.

[0014] Compared with the prior art, the utility model provides a powder material collection device in the coating production process, which has the following beneficial effects: the powder material collection device in the coating production process generates negative pressure in the first cylinder by starting the suction fan, and the powder material enters the first cylinder through the air inlet pipe. Because the airflow at the air inlet pipe extends into the first cylinder along the tangential direction of the outer circle of the first cylinder, a vortex is generated in the first cylinder. Under the action of the vortex, part of the powder material settles downward and falls into the corresponding collecting barrel, while part of the powder material enters the second cylinder through the air outlet pipe. At this time, the wind pressure in the second cylinder is reduced, and the powder material falls into the corresponding collecting barrel after being intercepted by the dust removal filter bag, thereby realizing the capture and collection of the powder material, improving the powder material capture rate, and increasing the powder material recovery amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 The utility model Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0018] Figure 4 The utility model Figure 2 Schematic diagram of the cross-section structure at BB in the middle;

[0019] Figure 5 The utility model Figure 3 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 6 The utility model Figure 4 A schematic diagram of the partially enlarged structure at B in the middle;

[0021] Markings in the attached drawings: 1. frame; 2. fan; 3. first cylinder; 4. air inlet pipe; 5. air outlet pipe; 6. second cylinder; 7. exhaust pipe; 8. inner support frame; 9. dust filter bag; 10. ring brush; 11. lifting rod; 12. tension spring; 13. ring frame; 14. inclined slope; 15. open cylinder; 16. top cover; 17. buckle lock; 18. flexible pipe; 19. multi-air outlet joint; 20. arc guide plate; 21. through hole; 22. push-pull frame; 23. universal wheel. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0023] As described in the background technology, a dust recovery device for a powder coating powder outlet uses a fan to suck the flying powder material into a collection box for collection. However, due to the high wind pressure in the recovery box, the powder material sedimentation amount is low, the powder material capture rate is poor, and the powder material collection effect needs to be further improved.

[0024] In order to solve this technical problem, the utility model provides a powder material collecting device in a coating production process, which is used for recycling powder materials.

[0025] Specifically, please refer to Figure 1-4 The powder material collecting device in the coating production process specifically includes: a frame 1, a fan 2, a cyclone settler installed on the frame 1 and a secondary dust collecting mechanism, the cyclone settler includes a first cylinder 3, an air inlet pipe 4 extending tangentially into the first cylinder 3 along the outer circle of the first cylinder 3 and an air outlet pipe 5 extending from the top of the first cylinder 3 into the first cylinder 3, the secondary dust collecting mechanism includes a second cylinder 6, an exhaust pipe 7 installed on the top of the second cylinder 6, an inner support frame 8 integrally connected with the exhaust pipe 7 and a dust filter bag 9 sleeved on the inner support frame 8; the fan 2 is installed on the top of the first cylinder 3, the input end of the fan 2 is connected with the output end of the air outlet pipe 5, the output end of the fan 2 extends into the second cylinder 6, and a collecting barrel is installed at the bottom of the first cylinder 3 and the second cylinder 6; further, the inside of the collecting barrel is connected with the corresponding discharge port at the bottom of the first cylinder 3 or the second cylinder 6.

[0026] The utility model provides a powder material collection device for a coating production process. By starting the suction fan 2, a negative pressure is generated in the first cylinder 3, and the powder material enters the first cylinder 3 through the air inlet pipe 4. Since the airflow at the air inlet pipe 4 extends into the first cylinder 3 along the outer circle of the first cylinder 3, a vortex is generated in the first cylinder 3. Under the action of the vortex, part of the powder material settles downward and falls into the corresponding collecting barrel, while part of the powder material enters the second cylinder 6 through the air outlet pipe 5. At this time, the wind pressure in the second cylinder 6 is reduced, and the powder material falls into the corresponding collecting barrel after being intercepted by the dust removal filter bag 9, thereby capturing and collecting the powder material, improving the powder material capture rate, and increasing the amount of powder material recovery.

[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] Example 1

[0031] Please refer to Figure 1-4 , a powder material collecting device in a coating production process, comprising a frame 1, a fan 2, a cyclone settler mounted on the frame 1 and a secondary dust collecting mechanism, the cyclone settler comprising a first cylinder 3, an air inlet pipe 4 extending into the first cylinder 3 along the outer circle of the first cylinder 3 tangentially, and an air outlet pipe 5 extending into the first cylinder 3 from the top of the first cylinder 3, the secondary dust collecting mechanism comprising a second cylinder 6, an exhaust pipe 7 mounted on the top of the second cylinder 6, an inner support frame 8 integrally connected to the exhaust pipe 7, and a dust filter bag 9 sleeved on the inner support frame 8; the fan 2 is mounted on the top of the first cylinder 3, the input end of the fan 2 is connected to the output end of the air outlet pipe 5, the output end of the fan 2 extends into the second cylinder 6, the first cylinder 3 and the first cylinder 6 are connected to each other. A collecting barrel is installed at the bottom of the two cylinders 6; it also includes a cleaning component for adsorbing powder on the outer wall of the dust filter bag 9, the cleaning component includes an annular brush 10 slidably installed on the dust filter bag 9, two lifting rods 11 fixedly connected to the annular brush 10, and a tension spring 12 sleeved on the lifting rod 11, the lifting rod 11 extends from the top of the second cylinder 6, and the lifting rod 11 is elastically connected to the top of the second cylinder 6 through the tension spring 12; further, the lifting rod 11 can be slidably installed on the top of the second cylinder 6, the tension spring 12 is sleeved on the upper part of the lifting rod 11, one end of the tension spring 12 is fixedly connected to the top of the second cylinder 6, and the other end of the tension spring 12 is fixedly connected to the upper part of the lifting rod 11, and a lifting handle is provided on the top of the lifting rod 11.

[0032] The powder material collecting device in the coating production process provided in this embodiment, when a large amount of powder material is accumulated on the outer wall of the dust filter bag 9, the lifting rod 11 can be lifted up and pulled to move the lifting rod 11 downward, so that the annular brush 10 can brush off the dust on the outer wall of the dust filter bag 9. The lifting rod 11 can also be pulled upward until the annular brush 10 is located on the upper part of the dust filter bag 9, and the tension spring 12 is in a stretched state. The lifting rod 11 is released, and under the action of the tension spring 12, the lifting rod 11 and the annular brush 10 move downward rapidly, and the tension spring 12 is in a contracted state. Under the elastic force of the tension spring 12, the annular brush 10 moves up and down by itself, thereby removing the powder material dust on the dust filter bag 9, reducing the powder material adhering to the dust filter bag 9, and ensuring the air permeability of the dust filter bag 9. The cleaning component has a simple structure and is easy to operate.

[0033] Example 2

[0034] The powder material collecting device in the coating production process provided in Example 1 is further optimized. Specifically, Figure 3-6 As shown, a ring frame 13 with an outer diameter larger than that of the ring brush 10 is provided at the bottom of the dust filter bag 9; an inclined slope 14 is provided on the ring frame 13.

[0035] The present embodiment provides a powder material collecting device in the coating production process. When the tension spring 12 contracts to drive the lifting rod 11 and the annular brush 10 to move downward, the annular brush 10 collides with the annular frame 13. Under the action of the impact force, the dust filter bag 9 is tightened and contracts to the inner support frame 8. The dust filter bag 9 collides with the inner support frame 8 during the contraction process, so that the dust filter bag 9 is in a vibrating state, and the powder material on the dust filter bag 9 is shaken off, thereby further improving the thoroughness of cleaning the powder material attached to the dust filter bag 9; the inclined slope 14 can reduce the powder material falling onto the annular frame 13, thereby improving the smoothness of the powder material falling.

[0036] Specifically, the collecting barrel includes an open barrel 15, a top cover 16 and a hasp lock 17. The top cover 16 is fixedly connected to the corresponding first barrel body 3 and the second barrel body 6. The open barrel 15 and the top cover 16 are detachably connected through the hasp lock 17. A gap of 10-20 cm is left between the bottom of the open barrel 15 and the ground. When a certain amount of powder material is collected in the open barrel 15, the hasp lock 17 is opened, the open barrel 15 is moved out from the frame 1, and the collected powder material is moved to the desired position.

[0037] Specifically, a flexible tube portion 18 is provided at the air inlet pipe 4, and a multi-air outlet joint 19 is installed at the port of the air inlet pipe 4; multiple suction pipes can be connected to the flexible tube portion 18 through the multi-air outlet joint 19 to adsorb flying powder materials in multiple places, and the flexible tube portion 18 can meet the multi-directional adjustment requirements of the air inlet pipe 4, thereby improving the adaptability of the device.

[0038] Specifically, an arc-shaped guide plate 20 is installed in the second cylinder 6 near the connection point between the output end of the fan 2 and the second cylinder 6, and a plurality of evenly distributed through holes 21 are provided on the arc-shaped guide plate 20; the airflow entering the second cylinder 6 through the air outlet pipe 5 is blown at the arc-shaped guide plate 20, and after being guided by the arc-shaped guide plate 20, the airflow disperses and flows along the inner wall of the second cylinder 6, so that the powder material is distributed around the dust filter bag 9, avoiding the local accumulation of excessive powder material on the windward surface of the dust filter bag 9.

[0039] Specifically, a push-pull frame 22 is installed on the frame 1, and a universal wheel 23 is installed at the bottom of the frame 1; the universal wheel 23 can be used to move the device more conveniently and labor-savingly, and the push-pull frame 22 can facilitate the operator to push the frame 1 to the desired position, further improving the convenience of use.

[0040] The use process of the powder material collecting device in the coating production process provided by the utility model is as follows: push the device to the required position, start the suction fan 2, so that negative pressure is generated in the first cylinder 3, and the powder material enters the first cylinder 3 through the air inlet pipe 4. Because the airflow at the air inlet pipe 4 extends into the first cylinder 3 along the outer circle of the first cylinder 3, a vortex is generated in the first cylinder 3. Under the action of the vortex, part of the powder material settles downward and falls into the corresponding collecting barrel, while part of the powder material enters the second cylinder 6 through the air outlet pipe 5. At this time, the wind pressure in the second cylinder 6 is reduced, and the powder material falls into the corresponding collecting barrel after being intercepted by the dust filter bag 9. When the dust filter bag 9 When a large amount of powder material accumulates on the outer wall, the lifting rod 11 can be lifted up and moved downward by pulling the lifting rod 11 so that the annular brush 10 can brush off the dust on the outer wall of the dust filter bag 9. The lifting rod 11 can also be pulled upward until the annular brush 10 is located on the upper part of the dust filter bag 9 and the tension spring 12 is in a stretched state. The lifting rod 11 is released. Under the action of the tension spring 12, the lifting rod 11 and the annular brush 10 move downward rapidly, and the tension spring 12 is in a contracted state. Under the elastic force of the tension spring 12, the annular brush 10 moves up and down by itself, thereby removing the powder material dust on the dust filter bag 9. After removing the opening tube 15, the powder material collected in the opening tube 15 can be reused.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A powder material collecting device in a coating production process, characterized in that: It comprises a frame (1), a fan (2), a cyclone settler installed on the frame (1), and a secondary dust collecting mechanism; The cyclone settler comprises a first cylinder (3), an air inlet pipe (4) extending tangentially into the first cylinder (3) along the outer circle of the first cylinder (3), and an air outlet pipe (5) extending from the top of the first cylinder (3) into the first cylinder (3); The secondary dust collecting mechanism comprises a second cylinder (6), an exhaust pipe (7) installed on the top of the second cylinder (6), an inner support frame (8) integrally connected to the exhaust pipe (7), and a dust filter bag (9) sleeved on the inner support frame (8); the fan (2) is installed on the top of the first cylinder (3), the input end of the fan (2) is connected to the output end of the air outlet pipe (5), the output end of the fan (2) extends into the second cylinder (6), and the first cylinder (3) and the second cylinder (6) are both installed with a collecting barrel at the bottom; It also includes a cleaning component for adsorbing powder on the outer wall of the dust filter bag (9), the cleaning component includes an annular brush (10) slidably installed on the dust filter bag (9), two lifting rods (11) fixedly connected to the annular brush (10), and a tension spring (12) sleeved on the lifting rod (11), the lifting rod (11) extends from the top of the second cylinder (6), and the lifting rod (11) is elastically connected to the top of the second cylinder (6) through the tension spring (12).

2. The powder material collecting device in the coating production process according to claim 1, characterized in that: A ring frame (13) having an outer diameter larger than that of the ring brush (10) is provided at the bottom of the dust removal filter bag (9).

3. The powder material collecting device in the coating production process according to claim 2, characterized in that: The ring frame (13) is provided with an inclined slope (14).

4. The powder material collecting device in the coating production process according to claim 1, characterized in that: The collecting barrel comprises an open barrel (15), a top cover (16) and a snap lock (17); the top cover (16) is fixedly connected to the corresponding first barrel body (3) and the second barrel body (6); the open barrel (15) and the top cover (16) are detachably connected via the snap lock (17); and a gap of 10-20 cm is left between the bottom of the open barrel (15) and the ground.

5. The powder material collecting device in the coating production process according to claim 1, characterized in that: The air inlet pipe (4) is provided with a flexible pipe portion (18), and a multi-air outlet joint (19) is installed at the port of the air inlet pipe (4).

6. The powder material collecting device in the coating production process according to claim 1 or 3, characterized in that: An arc-shaped guide plate (20) is installed in the second cylinder (6) near the connection between the output end of the fan (2) and the second cylinder (6), and a plurality of evenly distributed through holes (21) are provided on the arc-shaped guide plate (20).

7. The powder material collecting device in the coating production process according to claim 4, characterized in that: A push-pull frame (22) is installed on the frame body (1), and a universal wheel (23) is installed at the bottom of the frame body (1).

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