A paint room exhaust gas purification treatment device

Abstract

The present invention provides a paint room exhaust gas purification treatment device, which belongs to the field of flue gas treatment technology. The paint room exhaust gas purification treatment device comprises a bin body and a dust removal bag arranged inside the bin body, and also comprises: a cleaning piece, wherein the cleaning piece is used to clean the surface of the dust removal bag, and the cleaning piece comprises an extrusion ring arranged outside the dust removal bag, and two extrusion plates symmetrically arranged inside the dust removal bag, wherein an arc-shaped extrusion end and an inverted triangular scraping end are arranged on the inner ring of the extrusion ring; the extrusion plate can be driven to move upward by moving the lifting component upward, and can be used in conjunction with the cleaning piece to crush the material caked on the dust removal bag; when the lifting component moves downward, the extrusion plate can open the dust removal bag and contact the scraping end, so that the dust removal bag and the scraping end move relative to each other, thereby scraping off the crushed material on the dust removal bag.

Description

Technical Field

[0001] The invention belongs to the technical field of flue gas treatment, and in particular relates to a paint room waste gas purification treatment device. Background Art

[0002] Plastic spraying, also known as electrostatic powder spraying, is a common metal surface treatment decoration technology used internationally. Its working principle is to charge plastic powder through high-voltage electrostatic equipment, and spray the paint onto the surface of the workpiece under the action of the electric field. The powder will be evenly adsorbed on the surface of the workpiece to form a powdery coating. This layer of powdery coating will be leveled and solidified after high-temperature baking, and the plastic particles will melt into a dense final protective coating with different effects, firmly attached to the surface of the workpiece.

[0003] A pulse bag dust removal device is disclosed in a Chinese patent with authorization announcement number CN116139621B. The dust removal bin body is cylindrical and vertically arranged. The dust removal bin body is equipped with a rotating mechanism that is intermittently driven to rotate around its central axis. The rotating mechanism is equipped with a plurality of bag assemblies that are evenly distributed around the circumference of the rotating central axis. Compared with the existing bag dust removal devices that use the method of stopping the air flow for cleaning, the device provided by the invention does not require stopping the air flow for cleaning. In actual work, it does not affect the continuous dust removal and purification operation, and can ensure sufficient time for pulse cleaning of the dust bags in the cleaning no-load area during the dust removal operation, so that intermittent cleaning can be performed one by one while the dust removal operation is uninterrupted. The cleaning process no longer intermittently occupies the dust removal operation time, which can effectively ensure the continuity of dust removal and dust removal efficiency.

[0004] In the process of treating plastic spraying waste gas, the dust in the plastic spraying waste gas will be adsorbed on the dust collector bag. If it is not cleaned for a long time, it will form a compaction on the dust collector bag. At this time, if the compacted material on the dust collector bag is directly scraped off, it is easy to cause scratches on the dust collector bag, and it is also difficult to effectively clean the compacted material on the dust collector bag. Summary of the invention

[0005] The object of the present invention is to provide a paint room exhaust gas purification treatment device, aiming to solve the problem that the pulse bag dust removal device in the prior art is difficult to clean the materials that are caked on the dust removal bag.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a paint room exhaust gas purification treatment device, comprising: a bin body and a dust removal bag arranged inside the bin body, and also comprising:

[0007] A cleaning piece, the cleaning piece is used to clean the surface of the dust bag, the cleaning piece comprises an extrusion ring arranged outside the dust bag, two extrusion plates symmetrically arranged inside the dust bag, and an arc-shaped extrusion end and an inverted triangle-shaped scraping end are arranged on the inner ring of the extrusion ring;

[0008] A lifting assembly, which is arranged inside the dust removal bag and is used to drive the extrusion ring and the extrusion plate to rise and fall;

[0009] An angle adjustment mechanism, used to control the angle between the two extrusion plates;

[0010] When the cleaning piece moves upward, the angle between the two extrusion plates becomes smaller, and the extrusion end cooperates with the extrusion plate to break up the compacted material on the dust bag. When the cleaning piece moves downward, the angle between the two extrusion plates becomes larger, and the scraping end cooperates with the extrusion plate to scrape off the broken material.

[0011] The beneficial effects of the present invention are: the cleaning part is driven to move upward by the lifting component, and the dust bag is squeezed by the cleaning part and the extrusion plate, so that the paint oil adsorbed in the dust bag can be pushed out, thereby achieving the purpose of discharging the paint oil; when the lifting component moves downward, the impurities on the dust bag can be scraped off by the scraping end, thereby achieving the purpose of removing impurities from the dust bag.

[0012] A further technical solution of the present invention is that the angle adjustment mechanism includes a lifting block located inside the dust bag, the lifting assembly can drive the lifting block to lift and lower, the extrusion plate is hinged on the lifting block, a damping plate is arranged under the lifting block, and the damping plate is connected to the extrusion plate through a connecting rod.

[0013] The effect is that the angle between the two extrusion plates can be adjusted by the angle adjustment mechanism.

[0014] A further technical solution of the present invention is that the lifting assembly also includes a screw arranged inside the dust removal bag, the screw is threadedly connected to the lifting block and passes through the damping plate, and a driving device for driving the screw to rotate is also provided on the warehouse body.

[0015] The effect is that the squeezing plate and the cleaning member can be moved upwards by the lifting assembly.

[0016] A further technical solution of the present invention is that a support rod penetrating the lifting block and the damping plate is arranged inside the dust removal bag, one end of the support rod is fixed to the bin body, and the other end of the support rod is against the bottom of the dust removal bag.

[0017] A further technical solution of the present invention is that a damping member is arranged on the damping plate, the damping member comprises a friction block which can slide on the damping plate, and an elastic member which pushes the friction block to contact the support rod is arranged on the damping plate.

[0018] The effect is that the angle of the extrusion plate can be adjusted by setting the damping member.

[0019] A further technical solution of the present invention is that the damping plate is located between two extrusion plates, and the damping plate can limit the minimum opening and closing angle of the extrusion plates.

[0020] A further technical solution of the present invention is that a chassis is provided at one end of the support rod, and the chassis is located at the inner bottom wall of the dust bag and is used to expand the dust bag in a circumferential direction.

[0021] A further technical solution of the present invention is that the chassis is elliptical, so that the cross section of the dust bag is expanded in an elliptical shape, and the opening of the dust bag is also elliptical and fixed on the mounting plate.

[0022] The effect is that the cleaning range of the cleaning piece can be increased by setting the cross-section of the dust removal bag to be elliptical.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] By moving the lifting assembly upward, the extrusion plate can be driven to move upward, and can be used in conjunction with the cleaning piece to break up the material stuck on the dust bag. When the lifting assembly moves downward, the extrusion plate can open the dust bag and contact the scraping end, so that the dust bag and the scraping end can move relative to each other, thereby scraping off the broken material on the dust bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the internal structure of a specific embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of the installation structure of the dust removal bag in a specific embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the internal structure of a dust removal bag in a specific embodiment of the present invention;

[0030] Figure 5 It is a structural schematic diagram of a lifting assembly in a specific embodiment of the present invention;

[0031] Figure 6 for Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0032] In the figure: 1. bin body; 11. mounting plate; 2. dust bag; 3. cleaning part; 31. extrusion end; 32. scraping end; 4. lifting assembly; 41. extrusion plate; 42. lead screw; 43. lifting block; 44. damping plate; 45. connecting rod; 46. driving device; 5. support rod; 51. chassis; 6. damping part; 61. friction block; 62. elastic part; 8. angle adjustment mechanism. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 6 , the present invention provides the following technical solutions: a paint room exhaust gas purification treatment device, comprising: a bin body 1, a dust removal bag 2, a cleaning member 3, an angle adjustment mechanism 8 and a lifting assembly 4;

[0035] There are multiple dust removal bags 2, all of which are installed on the bin body 1. The cleaning piece 3 and the lifting assembly 4 are installed on the dust removal bag 2. The cleaning piece 3 can move up and down on the dust removal bag 2 through the lifting assembly 4. When the cleaning piece 3 moves upward, the compacted material on the dust removal bag 2 can be crushed. When the cleaning piece 3 moves downward, the crushed material on the dust removal bag 2 can be scraped off.

[0036] The bin body 1 is provided with supporting legs, an air inlet and an air outlet. The supporting legs are used to support the bin body 1, wherein the air inlet is installed on the side wall below the bin body 1. The exhaust gas can enter the interior of the bin body 1 through the air inlet, and then be filtered through the dust bag 2 and discharged from the air outlet. The filtered impurities and paint oil and other substances will be adsorbed on the dust bag 2.

[0037] A mounting plate 11 is provided inside the bin body 1, and the mounting plate 11 is fixed to the top of the bin body 1 by screws. The mounting plate 11 is used to install the dust bag 2. The opening of the dust bag 2 is connected to the mounting plate 11, and the other end is naturally drooped downward. A support rod 5 is provided inside the dust bag 2, and a chassis 51 is provided at one end of the support rod 5. The chassis 51 is located at the inner bottom wall of the dust bag 2 and is used to open the dust bag 2 in the circumferential direction. The other end of the support rod 5 is fixed to the bin body 1, and the axial direction of the dust bag 2 can be tensioned, so that the dust bag 2 can form a cylindrical body;

[0038] Furthermore, the chassis 51 is elliptical, so that the cross section of the dust bag 2 is stretched out in an elliptical shape, and the opening of the dust bag 2 is also elliptical and fixed on the mounting plate 11, thereby increasing the cleaning range of the cleaning member 3 and making it easier for the cleaning member 3 to clean the dust bag 2.

[0039] The cleaning piece 3 is rectangular and has a through opening in the middle of the cleaning piece 3. The dust bag 2 is located inside the through opening, which is also rectangular. An extrusion ring is provided at the edge of the through opening, and an extrusion end 31 and a scraping end 32 are provided on the extrusion ring. The extrusion end 31 is an arc surface and is always in contact with the dust bag 2, so that the dust bag 2 is deformed, and can break up the compacted material on the dust bag 2 by cooperating with the extrusion plate 41. The scraping end 32 can contact the dust bag 2 when the lifting assembly 4 and the cleaning piece 3 move downward, and can cause relative movement between the scraping end 32 and the dust bag 2, so that the broken material on the dust bag 2 can be scraped off.

[0040] The angle adjustment mechanism 8 includes a lifting block 43, a damping plate 44 and a connecting rod 45. The lifting block 43 is arranged inside the dust bag 2, and enables the lifting assembly 4 to drive the lifting block 43 to move up and down. The damping plate 44 is arranged below the lifting block 43. The support rod 5 can be used to prevent the lifting block 43 from rotating synchronously with the lead screw 42, and is sleeved on the lead screw 42, and can perform damping sliding on the support rod 5. There are two extrusion plates 41, which are respectively hinged on both sides of the lifting block 43, and the extrusion plate 41 is connected to the damping plate 44 through the connecting rod 45. Specifically, one end of the connecting rod 45 is hinged on the lifting block 43, and the other end is hinged on the damping plate 44. When the lifting block 43 moves upward, the extrusion plate 41 can be driven to move upward;

[0041] The lifting assembly 4 is arranged inside the dust bag 2, and is used to cooperate with the cleaning piece 3 to clean the dust bag 2. The lifting assembly 4 includes a lead screw 42, which vertically penetrates into the interior of the dust bag 2 and is arranged parallel to the support rod 5. A driving device 46 capable of driving the lead screw 42 to rotate is also arranged on the top of the bin body 1. There are multiple driving devices 46, which correspond to each dust bag 2 respectively. The driving device 46 is a motor, and the lifting block 43 is threadedly connected to the lead screw 42, and the two ends of the lifting block 43 slide on the support rod 5. When the lead screw 42 rotates, the lifting block 43 can be driven to move up and down. The driving device 46 can also transmit kinetic energy to each lead screw 42 through a transmission mechanism through a single motor, and the transmission mechanism can be selected as a gear drive or a belt drive;

[0042] When the squeezing plate 41 moves upward, the damping plate 44 can be driven to move upward by the connecting rod 45. At the same time, since the damping plate 44 and the support rod 5 are arranged in a damping sliding manner, the connecting rod 45 can pull the squeezing plate 41 to flip downward, so that the angle between the two squeezing plates 41 becomes smaller. In addition, by setting the width of the damping plate 44, the squeezing plate 41 can be against the damping plate 44 during the flipping process, so that the angle of the squeezing plate 41 can be limited. At this time, the distance between the bottoms of the two squeezing plates 41 is greater than the distance between the two squeezing ends 31 in the cleaning member 3, so that the two squeezing plates 41 can drive the cleaning member 3 to move upward when moving upward. Under the self-weight of the cleaning member 3, the squeezing ends 31 can squeeze the dust bag 2, so that the objects caked on the dust bag 2 can be removed. The material is crushed. When the lifting assembly 4 moves downward, the lifting block 43 moves downward by flipping the lead screw 42. The damping plate 44 is set to damp the sliding, so that the distance between the lifting block 43 and the damping plate 44 becomes smaller, so that the connecting rod 45 can push the angle between the two extrusion plates 41 to increase. When the angle between the two extrusion plates 41 increases, the extrusion plate 41 can push the dust bag 2 to contact the scraping end 32. At this time, the lifting block 43 drives the damping plate 44 to move downward, and the cleaning piece 3 moves downward at the same time by its own gravity. In the process of moving downward, the scraping end 32 can scrape off the crushed material on the dust bag 2, so that the material compacted on the surface of the dust bag 2 can be cleaned, and the cleaned impurities will fall to the bottom of the bin body 1 and then be processed uniformly.

[0043] A damping member 6 is arranged on the damping plate 44. The damping member 6 includes a friction block 61 that can slide on the damping plate 44 through a slide groove. One side of the friction block 61 has a friction surface. The damping plate 44 is provided with an elastic member 62 that pushes the friction surface of the friction block 61 to contact the support rod 5. The elastic member 62 is a compression spring. The friction block 61 can be pushed against the support rod 5 through the action of the elastic member 62 to increase the friction force between the friction block 61 and the support rod 5. Since the friction block 61 is slidably arranged on the damping plate 44, the friction force between the damping plate 44 and the support rod 5 can be indirectly increased, making it less likely for the damping plate 44 to slide on the support rod 5.

Claims

1. A paint room exhaust gas purification treatment device, comprising: The bin body (1) and the dust removal bag (2) arranged inside the bin body (1) are characterized by further comprising: A cleaning piece (3), the cleaning piece (3) being used to clean the surface of the dust bag (2), the cleaning piece (3) comprising an extrusion ring arranged outside the dust bag (2), two extrusion plates (41) symmetrically arranged inside the dust bag (2), an inner ring of the extrusion ring being provided with an arc-shaped extrusion end (31) and an inverted triangular scraping end (32); A lifting component (4), the lifting component (4) being arranged inside the dust removal bag (2) and used for driving the extrusion ring and the extrusion plate (41) to move up and down; An angle adjustment mechanism (8) for controlling the angle between the two extrusion plates (41); the angle adjustment mechanism (8) comprises a lifting block (43) located inside the dust removal bag (2); the lifting assembly (4) is capable of driving the lifting block (43) to move up and down; the extrusion plate (41) is hinged on the lifting block (43); a damping plate (44) is provided below the lifting block (43); and the damping plate (44) is connected to the extrusion plate (41) via a connecting rod (45); When the cleaning member (3) moves upward, the angle between the two extrusion plates (41) decreases, and the extrusion end (31) cooperates with the extrusion plate (41) to break up the material that has been hardened on the dust bag (2); when the cleaning member (3) moves downward, the angle between the two extrusion plates (41) increases, and the scraping end (32) cooperates with the extrusion plate (41) to scrape off the broken material from the dust bag (2).

2. A paint room exhaust gas purification device according to claim 1, characterized in that: The lifting assembly (4) further comprises a lead screw (42) disposed inside the dust removal bag (2); the lead screw (42) is threadedly connected to the lifting block (43) and passes through the damping plate (44); and a driving device (46) for driving the lead screw (42) to rotate is also disposed on the bin body (1).

3. A paint room exhaust gas purification device according to claim 2, characterized in that: A support rod (5) penetrating the lifting block (43) and the damping plate (44) is arranged inside the dust removal bag (2); one end of the support rod (5) is fixed to the bin body (1), and the other end of the support rod (5) abuts against the bottom of the dust removal bag (2).

4. A paint room exhaust gas purification device according to claim 2, characterized in that: The damping plate (44) is provided with a damping member (6), the damping member (6) comprising a friction block (61) capable of sliding on the damping plate (44), and the damping plate (44) is provided with an elastic member (62) for pushing the friction block (61) to contact the support rod (5).

5. A paint room exhaust gas purification device according to claim 1, characterized in that: The damping plate (44) is located between the two extrusion plates (41), and the damping plate (44) can limit the minimum opening and closing angle of the extrusion plates (41).

6. A paint room exhaust gas purification device according to claim 3, characterized in that: A bottom plate (51) is provided at one end of the support rod (5); the bottom plate (51) is located at the inner bottom wall of the dust removal bag (2) and is used to expand the dust removal bag (2) in a circumferential direction.

7. A paint room exhaust gas purification device according to claim 6, characterized in that: The bottom plate (51) is elliptical in shape, so that the cross section of the dust removal bag (2) is stretched out in an elliptical shape, and the opening of the dust removal bag (2) is also elliptical in shape and fixed on the mounting plate (11).

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