Explosion-proof dust removal recovery device for powder spraying equipment

Abstract

The invention belongs to the technical field of powder spraying, and particularly relates to an anti-explosion dust removal recovery device for powder spraying equipment. Comprising a cyclone separator, the cyclone separator, a filter element filter and a spraying room are connected through a dust discharging pipe set, a conveying line is arranged above the spraying room, a spraying piece is hung on the conveying line, the spraying device further comprises at least one spraying bin arranged in the spraying room, the spraying bin is provided with a moving channel in a penetrating mode in the direction of the conveying line, and the spraying piece can penetrate through the moving channel. A working opening is formed in one side of the spraying bin, a dust outlet is formed in the opposite side of the working opening, the dust outlet is connected with the dust discharging pipe set, and a flow guiding device is arranged on the inner side of the spraying bin and can guide redundant powder coating to leave from the dust outlet to be collected; and by conducting spraying work in the collecting bin and arranging a flow guiding device in the collecting bin, redundant powder coating can be efficiently collected, and the situation that a large amount of spraying powder is dissociated in a spraying room, and consequently the working environment is poor is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of powder spraying, and in particular relates to an explosion-proof dust removal and recovery device for powder spraying equipment. Background Art

[0002] The working principle of powder coating is that the metal guide cup on the spray gun head is connected to a high voltage negative charge, and the workpiece to be coated is grounded to form a positive electrode, forming a strong electrostatic field between the spray gun and the workpiece. When the carrier gas (usually compressed air) sends the powder coating from the powder supply barrel to the guide cup of the spray gun through the powder conveying pipe, the powder particles will be negatively charged when passing through the discharge area. These charged powder particles are uniformly adsorbed onto the grounded workpiece surface under the combined action of electrostatic force and compressed air. Due to the principle that like charges repel each other, when the powder adheres to a certain thickness, it will stop further adsorption due to the effect of "like charges repel each other", so that the thickness of the powder layer in each part remains uniform.

[0003] The Chinese invention patent with publication number CN112170072A discloses an explosion-proof dust collection and recovery device for powder spraying equipment, which connects the recovery device (the cyclone recovery device and the filter recovery device are connected by an air duct) and the powder spraying room through an air duct, and sucks the free powder coating in the powder spraying room through the cyclone recovery device and the filter recovery device in turn for dust collection and recovery. However, the simple connection between the pipeline and the powder spraying room has a relatively low efficiency for collecting the excess powder coating in the powder spraying room, and cannot timely and quickly collect and recover the free powder coating in the powder spraying room. Summary of the invention

[0004] The purpose of the present invention is to provide an explosion-proof dust removal and recovery device for powder spraying equipment in order to solve the above-mentioned technical problems. By carrying out spraying work in a collecting bin and setting a guide device in the collecting bin, the excess powder coating can be collected efficiently to avoid a large amount of spray powder being free in the spraying room, resulting in a poor working environment.

[0005] In view of this, the present invention provides an explosion-proof dust removal and recovery device for powder spraying equipment, including a cyclone separator, a filter element filter and a spray room connected by a dust exhaust pipe group, a conveyor line is arranged above the spray room, and spray parts are hung on the conveyor line. It also includes at least one spraying bin arranged in the spraying room, and the spraying bin is provided with a moving channel for the spray parts to pass through along the conveyor line direction. A working port is arranged on one side of the spraying bin, and a dust outlet is arranged on the opposite side of the working port. The dust outlet is connected to the dust exhaust pipe group, and a guide device is arranged on the inner side of the spraying bin, which can guide excess powder coating to leave the dust outlet for collection.

[0006] In the present technical scheme, the sprayed parts are transported on the conveyor line into the spray chamber in the spray room, and the operator uses a spray gun or an automatic spray device to spray the sprayed parts in the spray chamber from the working port. Through the setting of the spray chamber and the guide device, the excess sprayed powder coating can be smoothly collected through the dust outlet and the dust exhaust pipe group, and the subsequent cyclone separator and filter element filter recycle the coating powder to avoid low coating powder collection efficiency and a large amount of spray powder floating in the spray room, resulting in a poor working environment.

[0007] In the above technical scheme, further, the spraying bin is a cylindrical structure with an opening at the bottom, and a movable channel is arranged through the spraying bin along the conveying direction of the conveyor line for the spraying parts to pass through, and the movable channel includes a hanging channel for the fixed rope to pass through and a material channel for the spraying parts to pass through, and closing doors are arranged on both sides of the spraying bin to close the material channel during spraying.

[0008] In the above technical scheme, further, the closing door includes a door body arranged corresponding to the material channel and a handle arranged on the door body, the door body is slidably connected to the outer wall of the spraying bin through a first connecting member, the second connecting member includes a slide rail arranged on the outer wall of the spraying bin, a moving block is slidably arranged on the slide rail, and blocking blocks for limiting the moving block from sliding out of the slide rail are arranged on both sides of the slide rail, the moving block is rotatably connected to a first rocker arm, the other end of the first rocker arm is rotatably connected to a second rocker arm, and the second rocker arm is rotatably connected to a side away from the first rocker arm and a side of the door body.

[0009] In the present technical solution, the door body and the material channel have corresponding sizes. When the parts to be sprayed enter the spray chamber, the staff can pull the door body to the front of the material channel through the double handles provided on the door body, and then push the door body inward until the grooves provided on both sides of the door body and the convex strips provided on the side walls of the material channel are engaged to complete the closure. When an automatic spraying machine or a staff member uses a spray gun to spray the parts to be sprayed in the spray chamber from the working port, excess spray powder can be more easily recovered from the dust outlet through the dust exhaust channel. The door body setting is not limited to the above-mentioned setting method. For example, one side of the door body is hinged to the outer wall of the spray chamber.

[0010] In the above technical solution, further, the guide device includes a dust collecting plate, which is arranged on the front side of the dust outlet, and is an arc-shaped plate. The dust collecting plate is slidably connected to the fixed plate through a second connecting member, and the dust collecting plate can move along the radial direction of the spray chamber on the fixed plate, and the fixed plate is fixedly connected to the inner wall of the spray chamber.

[0011] In the above technical solution, further, the second connecting member includes a first fixed block, which is rotatably connected to the supporting block. A sliding column is arranged at the bottom of the supporting block. The sliding column is slidably arranged in a sliding groove arranged on the fixed plate along the radial direction of the spray chamber. A limiting groove is arranged on the side wall of the sliding groove. The sliding column is provided with a sliding block that can slide in the limiting groove corresponding to the limiting groove.

[0012] In this technical solution, Figure 10-11 They are schematic diagrams of the side section and cross section structure respectively. The arrows in the figure indicate the collection flow direction of the powder coating when the external fan is started and negative pressure is generated in the dust exhaust pipe group. Through the setting of the dust collecting plate, the streamlined design of the arc dust collecting plate helps to optimize the airflow path, so that the dust-containing gas can enter the dust exhaust pipe group more smoothly from the dust outlet. This design reduces the turbulence and resistance of the airflow and improves the overall efficiency of the dust removal system. It makes the collection of powder coating more efficient, and at the same time, the distance and angle direction of the dust collecting plate can be adjusted according to the spraying device to ensure the dust collecting effect. There are two fixed plates, both of which are fixedly connected to the inner wall of the spraying chamber, making the setting of the dust collecting plate more stable. The first fixed block and the dust collecting plate can be welded or threaded fixedly connected, and the first fixed block and the support block are connected by damping bearing rotation, which can conveniently rotate the dust collecting plate for angle adjustment.

[0013] In the above technical solution, further, the dust outlets are arranged in an array along the length direction of the dust induction plate, and the dust exhaust pipe groups are connected to the corresponding dust outlets.

[0014] In the present technical solution, the dust outlets are arranged in an array along the length direction of the dust inlet plate, which can increase the capture area so that more dust particles can be effectively captured. This layout helps to improve the capture efficiency of the recovery device.

[0015] In the above technical solution, further, an explosion-proof fluorescent lamp is arranged on the top of the spray chamber.

[0016] In this technical solution, the illumination of the explosion-proof fluorescent lamp is greater than 500Lux, and the explosion-proof lamp is specifically arranged in a ring shape on the top wall inside the spray booth to ensure that the working area is well-lit and safe, and the explosion-proof level of the spray booth is not lower than Exd l 1l bt4, and it is well grounded to prevent sparks that may be caused by static electricity accumulation.

[0017] In the above technical solution, further, the spray room includes a room body, a hanging rope is connected to the top wall of the room body, the hanging rope is connected to the spray chamber, a support platform is provided at the bottom of the room body, a dust exhaust channel is provided between the support platform and the bottom of the room body, and the dust exhaust channel is connected to the dust exhaust pipe group.

[0018] In the present technical solution, in the embodiment, an ear plate is provided on the top of the spray tank, and the spray tank is fixed by connecting the ear plate and the top wall of the room by a hanging rope. The method of fixing is not limited to this method. In other embodiments, other fixing methods such as a support frame can also be used to fix the spray tank.

[0019] In the above technical solution, further, the support platform is provided by a "V"-shaped support plate arranged in an array, and the tip of the support plate faces upward.

[0020] In this technical solution, the spray chamber is open at the bottom. When the excess powder coating cannot be completely collected from the dust outlet of the spray chamber through the dust exhaust channel, it will overflow from the bottom opening or from the working port and finally fall on the support table. Fig.12 This is a schematic diagram of the collection flow of powder coating that falls on the support platform. The arrow indicates the flow direction. Negative pressure is generated in the dust exhaust pipe group to absorb the powder coating. The powder coating that falls on the inclined surface of the "V"-shaped support plate enters the dust exhaust channel more smoothly and is collected from the dust exhaust pipe group.

[0021] In the above technical solution, further, it also includes a spray system arranged in the spray room, and the spray system includes a spray pipe arranged in the spray room, as well as a temperature sensor and a smoke detector.

[0022] In this technical solution, the sprinkler system can monitor the temperature and smoke concentration in the spray room in real time through temperature sensors and smoke detectors. Once an abnormal situation is detected, such as excessive temperature or smoke concentration exceeding the set threshold, the sprinkler system will immediately start to spray water mist or fire extinguishing agent to quickly extinguish the fire. Sprinkler pipes are spread throughout the spray room to ensure that all areas can be effectively covered when a fire occurs. This wide coverage helps prevent the spread of fire and improves fire extinguishing efficiency.

[0023] The beneficial effects of the present invention are:

[0024] 1. The sprayed parts are transported on the conveyor line into the spray chamber in the spray room. The operator uses a spray gun or an automatic spray device to spray the parts in the spray chamber from the working port. Through the setting of the spray chamber and the guide device, the excess sprayed powder coating can be smoothly collected through the dust outlet and the dust exhaust pipe group. The subsequent cyclone separator and filter element filter recycle the coating powder to avoid low coating powder collection efficiency and a large amount of spray powder floating in the spray room, resulting in a bad working environment;

[0025] 2. The streamlined design of the arc-shaped dust collecting plate helps optimize the airflow path, allowing the dust-laden gas to enter the dust exhaust pipe group more smoothly from the dust outlet. This design reduces the turbulence and resistance of the airflow and improves the overall efficiency of the dust removal system. It makes the collection of powder coatings more efficient, and the distance and angle of the dust collecting plate can be adjusted according to the spraying device to ensure the dust collection effect;

[0026] 3. The spray chamber is open at the bottom. When the excess powder coating cannot be completely collected from the dust outlet of the spray chamber through the dust exhaust channel, it will overflow from the bottom opening or from the working port and finally fall on the support table. Negative pressure is generated in the dust exhaust pipe group to absorb the powder coating. The powder coating that falls on the inclined surface of the "V"-shaped support plate enters the dust exhaust channel more smoothly and is collected from the dust exhaust pipe group. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the spraying chamber;

[0029] Figure 3 It is a schematic diagram of the internal structure of the spray room;

[0030] Figure 4 It is a half-section view of the spray booth;

[0031] Figure 5 yes Figure 4 The structural diagram at A in the middle;

[0032] Figure 6 This is another perspective of the half-section view of the spray chamber;

[0033] Figure 7 yes Figure 6 A partial exploded view of

[0034] Figure 8 yes Figure 7 A partial enlarged view of the middle A;

[0035] Fig. 9 It is a structural schematic diagram of the fixed plate;

[0036] Fig.10 It is a flow diagram of powder collection in the spraying chamber;

[0037] Fig.11 This is a flow diagram of powder collection in the spray chamber from another perspective;

[0038] Fig.12 It is a schematic diagram of the collection flow of powder coating falling on the support table.

[0039] The symbols in the figure are:

[0040] 1. Cyclone separator; 2. Filter element filter; 3. Spraying room; 4. Dust exhaust pipe group; 5. Conveyor line; 6. Spraying parts; 7. Spraying chamber; 8. Moving channel; 9. Working port; 10. Dust outlet; 11. Guide device; 12. Suspension channel; 13. Material channel; 14. Closing door; 15. Handle; 16. First connecting piece; 17. Slide rail; 18. Moving block; 19. Stop block; 20. First swing rod; 21. Second swing rod; 2 2. Dust-collecting plate; 23. Second connecting piece; 24. Fixed plate; 25. First fixed block; 26. Support block; 27. Sliding column; 28. Sliding groove; 29. ​​Limiting groove; 30. Sliding block; 31. Explosion-proof fluorescent lamp; 32. Room body; 33. Suspension rope; 34. Support platform; 35. Dust-exhaust channel; 36. Ear plate; 37. Spray pipe; 38. Temperature sensor; 39. Smoke detector; 40. Raised strip; 41. Groove; 42. Spray gun. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0042] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0045] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0046] First embodiment:

[0047] The present embodiment provides an explosion-proof dust removal and recovery device for powder spraying equipment, including a cyclone separator 1, the cyclone separator 1 and the filter element filter 2 and the spraying room 3 are connected through a dust exhaust pipe group 4, a conveyor line 5 is arranged above the spraying room 3, and a spraying part 6 is hung on the conveyor line 5. It also includes at least one spraying bin 7 arranged in the spraying room 3, and the spraying bin 7 is penetrated with a moving channel 8 for the spraying part 6 to pass through along the direction of the conveyor line 5. A working port 9 is arranged on one side of the spraying bin 7, and a dust outlet 10 is arranged on the opposite side of the working port 9. The dust outlet 10 is connected to the dust exhaust pipe group 4, and a guide device 11 is arranged on the inner side of the spraying bin 7. The guide device 11 can guide excess powder coating to leave the dust outlet 10 for collection.

[0048] like Figure 1-11 As shown, the spray parts 6 are transported on the conveyor line 5 into the spray bin 7 in the spray room 3, and the operator uses a spray gun 42 or an automatic spray device to spray the spray parts 6 in the spray bin 7 from the working port 9. Through the setting of the spray bin 7 and the guide device 11, the excess sprayed powder coating can be smoothly collected through the dust outlet 10 and the dust exhaust pipe group 4, and the subsequent cyclone separator 1 and the filter element filter 2 recycle the coating powder to avoid low coating powder collection efficiency and a large amount of spray powder being free in the spray room 3, resulting in a poor working environment.

[0049] In other embodiments, the number of spray chambers 7 can be increased according to specific production needs, that is, the production stations are increased to meet actual production needs.

[0050] like Figure 2-3 As shown, the spraying bin 7 is a cylindrical structure with an opening at the bottom, and a movable channel 8 is arranged through the spraying bin 7 along the conveying direction of the conveyor line 5 for the spraying parts 6 to pass through, and the movable channel 8 includes a hanging channel 12 for the fixed rope to pass through and a material channel 13 for the spraying parts 6 to pass through, and closing doors 14 are arranged on both sides of the spraying bin 7 to close the material channel 13 during spraying.

[0051] like Figure 4-5 As shown, the closing door 14 includes a door body arranged corresponding to the material channel 13 and a handle 15 arranged on the door body, the door body is slidably connected to the outer wall of the spray chamber 7 through a first connecting member 16, the second connecting member 23 includes a slide rail 17 arranged on the outer wall of the spray chamber 7, a moving block 18 is slidably arranged on the slide rail 17, and blocking blocks 19 are arranged on both sides of the slide rail 17 to limit the moving block 18 from sliding out of the slide rail 17, the moving block 18 is rotatably connected to the first rocker arm 20, the other end of the first rocker arm 20 is rotatably connected to the second rocker arm 21, and the second rocker arm 21 is rotatably connected to the side away from the first rocker arm 20 and the side of the door body.

[0052] The door body and the material channel 13 are of corresponding sizes. When the spray parts 6 enter the spray chamber 7, the staff can pull the door body to the front of the material channel 13 through the double handles 15 set on the door body, and then push the door body inward until the grooves 41 set on both sides of the door body and the convex strips 40 set on the side walls of the material channel 13 are engaged to complete the closure, so that when the automatic spraying machine or the staff uses the spray gun 42 to spray the spray parts 6 in the spray chamber 7 from the working port 9, the excess spray powder can be more easily recovered from the dust outlet 10 through the dust exhaust channel 35. The door body setting is not limited to the above-mentioned setting method. For example, one side of the door body and the outer wall of the spray chamber 7 are hinged.

[0053] like Figure 7-9 The guide device 11 shown includes a dust collecting plate 22, which is arranged on the front side of the dust outlet 10. The dust collecting plate 22 is an arc-shaped plate. The dust collecting plate 22 is slidably connected to the fixed plate 24 through a second connecting member 23. The dust collecting plate 22 can move along the radial direction of the spray chamber 7 on the fixed plate 24, and the fixed plate 24 is fixedly connected to the inner wall of the spray chamber 7.

[0054] The second connecting member 23 includes a first fixed block 25, which is rotatably connected to the support block 26. A sliding column 27 is arranged at the bottom of the support block 26. The sliding column 27 is slidably arranged in a sliding groove 28 arranged on the fixed plate 24 along the radial direction of the spray chamber 7. A limiting groove 29 is arranged on the side wall of the sliding groove 28. The sliding column 27 is provided with a sliding block 30 corresponding to the limiting groove 29 and capable of sliding in the limiting groove 29.

[0055] Figure 10-11 They are schematic diagrams of the side section and cross section structure respectively. The arrow in the figure indicates the collection flow direction of the powder coating when the external fan is started and negative pressure is generated in the dust exhaust pipe group 4. Through the setting of the dust collecting plate 22, the streamlined design of the arc dust collecting plate 22 helps to optimize the airflow path, so that the dust-containing gas can enter the dust exhaust pipe group 4 more smoothly from the dust outlet 10. This design reduces the turbulence and resistance of the airflow and improves the overall efficiency of the dust removal system. The collection of powder coating is more efficient. At the same time, the distance and angle direction of the dust collecting plate 22 can be adjusted according to the spraying device to ensure the dust collecting effect. There are two fixed plates 24, which are fixedly connected to the inner wall of the spraying chamber 7, making the setting of the dust collecting plate 22 more stable. The first fixed block 25 and the dust collecting plate 22 can be welded or threaded fixedly connected. The first fixed block 25 and the support block 26 are connected by damping bearing rotation, which can conveniently rotate the dust collecting plate 22 for angle adjustment.

[0056] The dust outlets 10 are arranged in an array along the length direction of the dust induction plate 22 , and the dust exhaust pipe groups 4 are connected to the dust outlets 10 accordingly.

[0057] The dust outlets 10 are arranged in an array along the length direction of the dust inlet plate 22, which can increase the capture area so that more dust particles can be effectively captured. This layout helps to improve the capture efficiency of the recovery device.

[0058] like Fig.10 As shown, an explosion-proof fluorescent lamp 31 is arranged on the top of the spray chamber 7 .

[0059] The illumination of the explosion-proof fluorescent lamp 31 is greater than 500 Lux. The explosion-proof lamp is specifically arranged in a ring shape on the top wall inside the spray chamber 7 to ensure that the working area is well-lit and safe. The explosion-proof level of the spray room 3 is not lower than Exd l 1l bt4 and is well grounded to prevent sparks that may be caused by static electricity accumulation.

[0060] The spray booth 3 includes a booth body 32, a top wall of the booth body 32 is connected with a hanging rope 33, the hanging rope 33 is connected with the spray chamber 7, a support platform 34 is arranged at the bottom of the booth body 32, a dust exhaust passage 35 is arranged between the support platform 34 and the bottom of the booth body 32, and the dust exhaust passage 35 is connected with the dust exhaust pipe group 4.

[0061] In the embodiment, an ear plate 36 is provided on the top of the spray tank 7, and the spray tank 7 is fixed by connecting the ear plate 36 and the top wall of the room body 32 through a hanging rope 33. The present invention is not limited to this fixing method. In other embodiments, other fixing methods such as a support frame can also be used to fix the spray tank 7.

[0062] like Fig.12 As shown, the support platform 34 is provided by "V"-shaped support plates arranged in an array, with the tips of the support plates facing upward.

[0063] The spray chamber 7 is open at the bottom. When the excess powder coating cannot be completely collected from the dust outlet 10 of the spray chamber 7 through the dust exhaust channel 35, it will overflow from the bottom opening or from the working port 9 and finally fall on the support platform 34. Fig.12 The figure is a schematic diagram of the collection flow of powder coatings falling on the support platform 34. The arrow indicates the flow direction. Negative pressure is generated in the dust exhaust pipe group 4 to absorb the powder coatings. The powder coatings falling on the inclined surface of the "V"-shaped support plate enter the dust exhaust channel 35 more smoothly and are collected from the dust exhaust pipe group 4. The distance between the tips of the support plates is no more than 13 cm to prevent the operator from falling when walking on the support platform 34.

[0064] like Figure 3 As shown, the spraying system further includes a spraying system arranged in the spraying room 3 , and the spraying system includes a spraying pipe 37 arranged in the spraying room 3 , a temperature sensor 38 and a smoke detector 39 .

[0065] The sprinkler system can monitor the temperature and smoke concentration in the spray room 3 in real time through the temperature sensor 38 and the smoke detector 39. Once an abnormal situation is detected, such as excessive temperature or smoke concentration exceeding the set threshold, the sprinkler system will immediately start to spray water mist or fire extinguishing agent to quickly extinguish the fire. The sprinkler pipes 37 are spread throughout the spray room 3 to ensure that all areas can be effectively covered when a fire occurs. This wide coverage helps prevent the spread of fire and improves fire extinguishing efficiency.

[0066] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An explosion-proof dust collection device for powder spraying equipment, comprising a cyclone separator (1), the cyclone separator (1) and the filter element filter (2) and the spraying room (3) are connected through a dust exhaust pipe group (4), a conveying line (5) is arranged above the spraying room (3), and a spraying part (6) is hung on the conveying line (5), characterized in that: The invention also comprises at least one spraying chamber (7) arranged in the spraying room (3); the spraying chamber (7) is provided with a moving passage (8) for the spraying parts (6) to pass through along the direction of the conveying line (5); a working port (9) is arranged on one side of the spraying chamber (7); a dust outlet (10) is arranged on the opposite side of the working port (9); the dust outlet (10) is connected to the dust exhaust pipe group (4); a flow guide device (11) is arranged inside the spraying chamber (7); the flow guide device (11) can guide excess powder coating to leave from the dust outlet (10) for collection.

2. The explosion-proof dust removal and recovery device for powder spraying equipment according to claim 1, characterized in that: The spraying chamber (7) is a cylindrical structure with an opening at the bottom. A movable channel (8) is provided through the spraying chamber (7) along the conveying direction of the conveying line (5) for the spraying parts (6) to pass through. The movable channel (8) includes a hanging channel (12) for the fixed rope to pass through and a material channel (13) for the spraying parts (6) to pass through. Closing doors (14) are provided on both sides of the spraying chamber (7) for closing the material channel (13) during spraying.

3. The explosion-proof dust removal and recovery device for powder spraying equipment according to claim 2, characterized in that: The closed door (14) comprises a door body arranged corresponding to the material channel (13) and a handle (15) arranged on the door body, the door body is slidably connected to the outer wall of the spray chamber (7) through a first connecting member (16), the second connecting member (23) comprises a slide rail (17) arranged on the outer wall of the spray chamber (7), a moving block (18) is slidably arranged on the slide rail (17), and blocking blocks (19) are arranged on both sides of the slide rail (17) to limit the moving block (18) from sliding out of the slide rail (17), the moving block (18) is rotatably connected to a first swing rod (20), the other end of the first swing rod (20) is rotatably connected to a second swing rod (21), and the second swing rod (21) is rotatably connected to one side of the door body at a side away from the first swing rod (20).

4. The explosion-proof dust removal and recovery device for powder spraying equipment according to claim 1, characterized in that: The guide device (11) comprises a dust collecting plate (22), the dust collecting plate (22) being arranged at the front side of the dust outlet (10), the dust collecting plate (22) being an arc-shaped plate, the dust collecting plate (22) being slidably connected to the fixed plate (24) via a second connecting member (23), the dust collecting plate (22) being movable on the fixed plate (24) along the radial direction of the spray chamber (7), and the fixed plate (24) being fixedly connected to the inner wall of the spray chamber (7).

5. The explosion-proof dust removal and recovery device for powder spraying equipment according to claim 4, characterized in that: The second connecting member (23) comprises a first fixed block (25), the first fixed block (25) is rotatably connected to the supporting block (26), a sliding column (27) is arranged at the bottom of the supporting block (26), the sliding column (27) is slidably arranged in a sliding groove (28) arranged on the fixed plate (24) along the radial direction of the spray chamber (7), a limiting groove (29) is arranged on the side wall of the sliding groove (28), and a sliding block (30) capable of sliding in the limiting groove (29) is arranged on the sliding column (27) corresponding to the limiting groove (29).

6. The explosion-proof dust removal and recovery device for powder spraying equipment according to claim 5, characterized in that: The dust outlets (10) are arranged in an array along the length direction of the dust induction plate (22), and the dust exhaust pipe groups (4) are connected to the dust outlets (10) accordingly.

7. The explosion-proof dust removal and recovery device for powder spraying equipment according to claim 2, characterized in that: An explosion-proof fluorescent lamp (31) is arranged on the top of the spraying chamber (7).

8. The explosion-proof dust removal and recovery device for powder spraying equipment according to claim 1, characterized in that: The spray booth (3) comprises a booth body (32), a top wall of the booth body (32) is connected to a suspension rope (33), the suspension rope (33) is connected to a spray chamber (7), a support platform (34) is arranged at the bottom of the booth body (32), a dust exhaust passage (35) is arranged between the support platform (34) and the bottom of the booth body (32), and the dust exhaust passage (35) is connected to a dust exhaust pipe group (4).

9. The explosion-proof dust removal and recovery device for powder spraying equipment according to claim 8, characterized in that: The support platform (34) is provided by a "V"-shaped support plate arranged in an array, with the tip of the support plate facing upward.

10. An explosion-proof dust removal and recovery device for powder spraying equipment according to any one of claims 1 to 9, characterized in that: It also includes a spray system arranged in the spray room (3), the spray system including a spray pipe (37) arranged in the spray room (3), a temperature sensor (38) and a smoke detector (39).

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