Dust removal equipment for thermosetting powder coating processing

Abstract

Relates to the field of dust removal equipment, and discloses dust removal equipment for thermosetting powder coating processing, which comprises an air inlet pipe, a cyclone separator, a connecting pipe and a dust remover, a conveying pipe is arranged on one side of the dust remover, one side, far away from the dust remover, of the conveying pipe is connected to a fan, and the dust removal equipment further comprises an explosion-proof valve arranged on the connecting pipe; the explosion venting valve is arranged on one side of the dust remover; according to the dust removal device, the explosion risk possibly occurring in the dust removal process is effectively reduced, the safety of equipment is improved, the explosion suppression valve can be rapidly closed when explosion occurs and prevent explosion waves from spreading, and the explosion venting valve can be automatically opened and release pressure when the pressure in the dust removal machine is too high, so that the dust removal effect is improved, and the dust removal efficiency is improved. Due to the design of the material guiding device, the discharged materials can be effectively controlled and guided and then are collected in the collecting box, scattering and waste of the materials are avoided, and meanwhile the possibility of secondary pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, and particularly relates to a dust removal equipment for thermosetting powder coating processing. Background Technique

[0002] Powder coatings are solid powder synthetic resin coatings composed of solid resins, pigments, fillers, and additives; different from ordinary solvent-based coatings and water-based coatings, their dispersion medium is not solvent and water, but air. During the processing of thermosetting powder coatings, a large amount of dust and particles will be generated. These dusts not only pollute the environment, but also may pose a threat to the health of workers. To solve this problem, dust removal equipment is widely used in the industry to collect and process these dusts.

[0003] The existing equipment has the following disadvantages: When traditional dust removal equipment processes these potentially explosive dusts, there are often certain safety hazards. Especially inside the dust collector, the accumulation of dust may cause an explosion, resulting in serious safety accidents. In addition, when traditional dust removal equipment discharges materials, there is often a lack of effective guiding and control mechanisms, resulting in material scattering, which not only causes waste, but also may cause secondary pollution.

[0004] Therefore, the present application now proposes a dust removal equipment for thermosetting powder coating processing to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dust removal equipment for thermosetting powder coating processing to solve the problems that the accumulation of the above dust may cause an explosion, resulting in serious safety accidents, and the scattering of materials, which not only causes waste, but also may cause secondary pollution.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A dust removal equipment for thermosetting powder coating processing, including an air inlet pipe connected to a mill, a cyclone separator arranged on one side of the air inlet pipe, a connecting pipe arranged on one side of the cyclone separator, and a dust collector arranged on the side of the connecting pipe away from the cyclone separator. A conveying pipe is arranged on one side of the dust collector, and the side of the conveying pipe away from the dust collector is connected to a fan. The equipment further includes:

[0007] An explosion isolation valve, arranged on the connecting pipe;

[0008] An explosion relief valve, arranged on one side of the dust collector;

[0009] A material guiding device, arranged at the discharge port of the dust collector for guiding the discharged materials.

[0010] Among them, a partition is fixedly installed inside the dust collector, a dust removal bag is arranged on the partition, a dust cleaning device for cleaning the dust on the dust removal bag is arranged on the dust collector, a blanking pipe is arranged at the lower end of the dust collector, and a pneumatic flap valve is arranged on the blanking pipe.

[0011] Among them, the dust cleaning device includes a pulse generator fixedly installed on one side of the dust collector, an access pipe arranged on the pulse generator and passing through the dust collector, and a nozzle arranged at the lower end of the access pipe and above the dust removal bag. The number and positions of the nozzles and the dust removal bags are correspondingly arranged.

[0012] Among them, the material guiding device includes a connecting ring detachably fixed to the lower end of the blanking pipe, a telescopic and foldable conveying bag arranged at the lower end of the connecting ring, a fixing ring fixed to the lower end of the conveying bag, and a towing rope arranged on the fixing ring for adjusting the extending length of the conveying bag. Fixing ears for installing the towing rope are arranged on the fixing ring, and the towing rope passes through the connecting ring.

[0013] Among them, a fixing member for fixing the position of the towing rope is arranged at the upper end of the towing rope, and the fixing member is fixedly connected to the towing rope through a connecting rope.

[0014] Among them, the fixing member includes a second clamping plate fixed to the connecting rope, a first clamping plate rotatably connected to one side of the second clamping plate, and a screw rod rotatably arranged on the second clamping plate. The screw rod is clamped on one side of the first clamping plate, a fixing nut is threadedly connected to the screw rod, and fixing grooves for fixing the towing rope are formed on the first clamping plate and the second clamping plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, the thermosetting powder raw material is conveyed to a mill by a vacuum feeding machine for grinding. After grinding, the powdered material is conveyed through an air inlet pipe under the negative pressure generated by a process fan, and then enters a cyclone separator for separation. The cyclone separator screens out the finished powder with a particle size meeting the requirements for packing. The remaining finer dust passes through the cyclone separator and is filtered by a dust collector. The clean gas meeting the emission requirements is discharged into the atmosphere, and the dust enters the interior of the dust collector for collection. By setting an explosion isolation valve and a pressure relief valve, the explosion risk that may occur during the dust removal process is effectively reduced, and the safety of the equipment is improved. The explosion isolation valve can quickly close during an explosion to prevent the propagation of the explosion wave, while the pressure relief valve can automatically open when the pressure inside the dust collector is too high to release the pressure and prevent equipment damage. The design of the material guiding device enables the discharged material to be effectively controlled and guided and then collected inside a collection box, avoiding the scattering and waste of the material, and at the same time reducing the possibility of secondary pollution. Brief Description of the Drawings

[0017] Figure 1 Schematic diagram of the main structure in an embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of the front view structure in an embodiment of the present utility model;

[0019] Figure 3 Schematic diagram of the internal structure of the dust collector in an embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of the connection structure between the material guiding device and the blanking pipe in an embodiment of the present utility model;

[0021] Figure 5 Schematic diagram of the material guiding device in an embodiment of the present utility model;

[0022] Figure 6 Schematic diagram of the fixing member in an embodiment of the present utility model.

[0023] In the figure: 1. Dust collector; 11. Dust removal bag; 12. Pulse generator; 13. Access pipe; 14. Sprinkler head; 15. Partition board; 16. Blanking pipe; 17. Pneumatic flap valve; 18. Material guiding device; 181. Connecting ring; 182. Conveyor bag; 183. Fixed ring; 1831. Fixed ear; 184. Traction rope; 185. Fixing member; 1851. First clamping plate; 18511. Fixed groove; 1852. Second clamping plate; 1853. Screw; 1854. Fixed nut; 186. Connecting rope; 19. Explosion vent valve; 2. Connecting pipe; 3. Flameproof valve; 4. Cyclone separator; 5. Air inlet pipe; 6. Conveyor pipe; 7. Fan; 8. Collection box. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1-6 , the present utility model provides a technical solution: a dust removal device for thermosetting powder coating processing, including an air inlet pipe 5 connected to a mill, a cyclone separator 4 provided on one side of the air inlet pipe 5, a connecting pipe 2 provided on one side of the cyclone separator 4, and a dust collector 1 provided on the side of the connecting pipe 2 away from the cyclone separator 4. A conveyor pipe 6 is provided on one side of the dust collector 1, and the side of the conveyor pipe 6 away from the dust collector 1 is connected to a fan 7. Further included are:

[0026] An explosion-proof valve 3 is provided on the connecting pipe 2;

[0027] A pressure relief valve 19 is provided on one side of the dust collector 1;

[0028] A material guiding device 18 is provided at the discharge port of the dust collector 1 for guiding the discharged material.

[0029] It should be noted that during operation, the thermosetting powder raw material is transported to the mill by a vacuum feeding machine for grinding. After grinding, the powder is transported by the negative pressure generated by the process fan 7 through the air inlet pipe 5, and then enters the cyclone separator 4 for separation. The cyclone separator 4 screens out the finished powder with a particle size meeting the requirements for packing. The remaining finer dust passes through the cyclone separator 4 and is then filtered by the dust collector 1. The clean gas meeting the emission requirements is discharged into the atmosphere, and the dust enters the interior of the dust collector 1 for collection. By setting the explosion-proof valve 3 and the pressure relief valve 19, the explosion risk that may occur during the dust removal process is effectively reduced, and the safety of the equipment is improved. The explosion-proof valve 3 can quickly close during an explosion to prevent the propagation of the explosion wave, while the pressure relief valve 19 can automatically open when the pressure inside the dust collector 1 is too high to release the pressure and prevent equipment damage. The design of the material guiding device 18 enables the discharged material to be effectively controlled and guided and then collected inside the collection box 8, avoiding the scattering and waste of the material, and at the same time reducing the possibility of secondary pollution.

[0030] In an embodiment, a partition 15 is fixed inside the dust collector 1. A dust removal bag 11 is provided on the partition 15. A dust cleaning device for cleaning the dust on the dust removal bag 11 is provided on the dust collector 1. A feeding pipe 16 is provided at the lower end of the dust collector 1, and a pneumatic flap valve 17 is provided on the feeding pipe 16.

[0031] With such a design, referring to Figure 3 , by fixing the partition 15 inside the dust collector 1 and providing the dust removal bag 11 on the partition 15, the contact area between the dust and the dust removal bag 11 is effectively increased, thereby improving the dust removal efficiency. This design enables the dust to be more effectively captured and separated when the dust-containing gas passes through the dust removal bag 11. The equipped dust cleaning device can regularly clean the dust removal bag 11, effectively removing the dust attached to the bag, thereby extending the service life of the dust removal bag 11 and reducing the frequency and difficulty of manual cleaning. The combined design of the feeding pipe 16 and the pneumatic flap valve 17 at the lower part of the dust collector 1 enables the collected dust to be discharged orderly and controllably. The pneumatic flap valve 17 can be quickly opened and closed, effectively preventing the leakage and flying of dust during the discharge process, and further reducing environmental pollution.

[0032] In one embodiment, the dust cleaning device includes a pulse generator 12 fixed on one side of the dust collector 1, an access pipe 13 disposed on the pulse generator 12 and passing through the dust collector 1, and a nozzle 14 disposed at the lower end of the access pipe 13 and above the dust bag 11. The number and positions of the nozzles 14 and the dust bags 11 are correspondingly arranged.

[0033] With such a design, referring to Figure 3 , the high-pressure air flow generated by the pulse generator 12 directly acts on the dust bag 11 through the access pipe 13 and the nozzle 14, which can quickly and effectively remove the dust adhering to the dust bag 11. This directional cleaning method not only improves the efficiency and effect of dust cleaning, but also extends the service life of the dust bag 11, reduces the blockage of the dust bag 11 caused by dust accumulation, maintains the permeability of the dust bag 11, and thus ensures the continuous and efficient operation of the dust collector 1.

[0034] In one embodiment, the material guiding device 18 includes a connecting ring 181 detachably fixed to the lower end of the feeding pipe 16, a telescopic and foldable conveying bag 182 disposed at the lower end of the connecting ring 181, a fixing ring 183 fixed to the lower end of the conveying bag 182, and a towing rope 184 disposed on the fixing ring 183 for adjusting the extending length of the conveying bag 182. A fixing ear 1831 for installing the towing rope 184 is provided on the fixing ring 183, and the towing rope 184 passes through the connecting ring 181.

[0035] With such a design, referring to Figure 4 , through the connecting ring 181 detachably fixed to the lower end of the feeding pipe 16, the entire material guiding device 18 can be flexibly connected or disconnected from the feeding pipe 16, facilitating installation, disassembly and maintenance. The conveying bag 182 is made of nylon and can be telescoped and folded, and can adjust its length according to the actual distance between the collection box 8 and the lower end of the feeding pipe 16, so that the fixing ring 183 extends into the interior of the collection box 8, ensuring that the dust material can be accurately and stably conveyed to the designated position and preventing dust leakage.

[0036] In one embodiment, a fixing member 185 for fixing the position of the towing rope 184 is provided at the upper end of the towing rope 184, and the fixing member 185 is fixedly connected to the towing rope 184 through a connecting rope 186.

[0037] In one embodiment, the fixing member 185 includes a second clamping plate 1852 fixed to the connecting rope 186, a first clamping plate 1851 rotatably connected to one side of the second clamping plate 1852, and a screw 1853 rotatably disposed on the second clamping plate 1852. The screw 1853 is clamped on one side of the first clamping plate 1851, and a fixing nut 1854 is threadedly connected to the screw 1853. Fixing grooves 18511 for fixing the towing rope 184 are formed on the first clamping plate 1851 and the second clamping plate 1852.

[0038] Designed in this way, referring to Figure 5 and Figure 6 , through the combined use of the screw 1853, the fixing nut 1854, and the first clamping plate 1851 and the second clamping plate 1852, the first clamping plate 1851 and the second clamping plate 1852 can be flexibly fixed at the designated position of the traction rope 184. By pulling the traction rope 184, the extended length of the conveying bag 182 can be adjusted. Then, after the position of the fixing ring 183 is adjusted, the traction rope 184 is fixed in the fixing groove 18511, so that the traction rope 184 fixes the position of the fixing ring 183. This design enables the feeding device 18 to adapt to different working environments and material conveying requirements, improving the adaptability and flexibility of the equipment.

[0039] In addition, if the description in the embodiment involves "first", "second", etc., such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance to the specification or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature.

Claims

1. A dust removal device for processing thermosetting powder coatings, comprising an air inlet pipe (5) connected to a grinding mill, a cyclone separator (4) arranged on one side of the air inlet pipe (5), a connecting pipe (2) arranged on one side of the cyclone separator (4), and a dust collector (1) arranged on a side of the connecting pipe (2) away from the cyclone separator (4), a conveying pipe (6) being arranged on one side of the dust collector (1), and a side of the conveying pipe (6) away from the dust collector (1) being connected to a fan (7), characterized in that: Also includes: An explosion-proof valve (3) is arranged on the connecting pipe (2); An explosion relief valve (19) is arranged on one side of the dust collector (1); A material guiding device (18) is arranged at the discharge port of the dust collector (1) and is used to guide the discharged material.

2. The dust removal equipment for thermosetting powder coating processing according to claim 1, characterized in that: A partition (15) is fixed inside the dust collector (1), a dust bag (11) is arranged on the partition (15), a dust cleaning device for cleaning dust on the dust bag (11) is arranged on the dust collector (1), a discharge pipe (16) is arranged at the lower end of the dust collector (1), and a pneumatic flap valve (17) is arranged on the discharge pipe (16).

3. The dust removal equipment for thermosetting powder coating processing according to claim 2, characterized in that: The dust cleaning device comprises a pulse generator (12) fixed on one side of the dust collector (1), an access pipe (13) arranged on the pulse generator (12) and passing through the dust collector (1), and a nozzle (14) arranged at the lower end of the access pipe (13) and located above the dust bag (11), wherein the nozzles (14) are arranged in a corresponding manner in number and position to the dust bag (11).

4. The dust removal equipment for thermosetting powder coating processing according to claim 2, characterized in that: The material guiding device (18) comprises a connecting ring (181) detachably fixed to the lower end of the feeding tube (16), a telescopically foldable conveying bag (182) arranged at the lower end of the connecting ring (181), a fixing ring (183) fixed to the lower end of the conveying bag (182), and a traction rope (184) arranged on the fixing ring (183) for adjusting the extension length of the conveying bag (182), the fixing ring (183) is provided with a fixing ear (1831) for installing the traction rope (184), and the traction rope (184) is passed through the connecting ring (181).

5. The dust removal equipment for thermosetting powder coating processing according to claim 4, characterized in that: The upper end of the traction rope (184) is provided with a fixing piece (185) for fixing the position of the traction rope (184), and the fixing piece (185) is fixedly connected to the traction rope (184) via a connecting rope (186).

6. The dust removal equipment for thermosetting powder coating processing according to claim 5, characterized in that: The fixing member (185) includes a second clamping plate (1852) fixed on the connecting rope (186), a first clamping plate (1851) rotatably connected to one side of the second clamping plate (1852), and a screw (1853) rotatably arranged on the second clamping plate (1852), wherein the screw (1853) is clamped on one side of the first clamping plate (1851), and a fixing nut (1854) is threadedly connected to the screw (1853), and a fixing groove (18511) for fixing the traction rope (184) is provided on the first clamping plate (1851) and the second clamping plate (1852).

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