Separating mechanism for paint mist recovery

Abstract

The utility model relates to the technical field of paint mist recovery, in particular to a separating mechanism for paint mist recovery, which comprises a plurality of single-piece separators, each single-piece separator comprises a mounting frame and a separating piece arranged in the mounting frame, each separating piece is provided with a plurality of protrusions, the protrusions are arranged at intervals, a concave portion is formed between every two adjacent protrusions, and each single-piece separator is provided with a plurality of grooves. At least one oil leakage hole is formed in the lower end, corresponding to the protruding parts and the concave parts, of the mounting frame, a plurality of vent holes are evenly distributed in the separation pieces, and when the single-piece separators are sequentially stacked to form a separation mechanism, the vent holes in every two adjacent separation pieces are staggered. The problems that in the prior art, a gas flow channel in a separator is short, paint mist particles are not fully impacted, the retention time of paint mist in the separator is short, and the paint recovery efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of paint mist recovery, in particular to a separation mechanism for paint mist recovery. Background Art

[0002] At present, in terms of paint spraying, the common spraying system is on the automated production line. The products are transported through the automated production line and sprayed by spray guns in different directions and positions. However, since the sprayed paint will form paint mist and produce a large area of ​​atomization area, the paint mist will adhere to the moving mechanism, wall surface and nozzle with the movement of the air. In addition, during the spraying process, the paint mist generated by the spraying will be discharged through the exhaust duct or enter the workshop. The paint will cause great pollution to the environment and affect human health. Most of the separators on the market are not designed with the design of the air duct in mind. Conventional separators for recovering paint mist particles are in the form of filter screens, multiple U-shaped straight plates staggered with each other, and funnels.

[0003] For example, in the patent document with the existing patent application number 202221341411.3, a dry paint mist filter device that can clean and recover paint particles is disclosed, and specifically discloses a filter module composed of a plurality of V-shaped units and an air inlet panel, wherein the V-shaped unit is provided with an air outlet hole for conducting with the filter channel, and the air to be filtered enters the filter channel through the air inlet hole on the air inlet panel. Since the positions of the air inlet hole and the air outlet hole are staggered, the airflow direction of the incoming paint mist suddenly changes, and the paint mist directly hits the inner wall of the V-shaped unit. The paint materials heavier than air in the paint mist are successfully intercepted by the V-shaped inner wall and fall down, thereby achieving the purpose of purifying and filtering the paint mist; the paint mist particles are recovered by the dry paint mist filter device of the above scheme,

[0004] Since the gas flow path in the separator is short, the paint mist particles do not collide sufficiently, the paint mist particles stay in the separator for a short time, and the paint mist recovery efficiency is low. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and provide a separation mechanism for paint mist recovery, so as to solve the problems in the prior art of short gas flow path in the separator, insufficient collision of paint mist particles, short residence time of paint mist in the separator and low paint mist recovery efficiency.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a separation mechanism for recovering paint mist, the separation mechanism comprising a plurality of single-chip separators, the single-chip separators comprising a mounting frame, and a separation sheet arranged in the mounting frame, the separation sheet being provided with a plurality of protrusions, the plurality of protrusions being arranged at intervals, a recess being formed between two adjacent protrusions, at least one oil leakage hole being arranged at the lower end of the plurality of protrusions and recesses on the mounting frame corresponding to the plurality of protrusions, and a plurality of ventilation holes being evenly distributed on the separation sheet, when the plurality of single-chip separators are sequentially stacked to form the separation mechanism, the plurality of ventilation holes on two adjacent separation sheets are staggered.

[0008] In some embodiments, the separation sheet is in a wave shape as a whole, a V-shaped angle is formed between the recessed portion and two adjacent raised portions, and the angle of the V-shaped angle is 30°-150°.

[0009] In some embodiments, the number of the monolithic separators is 4-12.

[0010] In some embodiments, two adjacent mounting frames are fixedly connected via a connecting member, which includes two bolts, two nuts and a connecting plate. The two nuts are fixed on the two adjacent mounting frames. The two bolts are inserted through the connecting plate and then screwed into the two nuts to fix the two mounting frames.

[0011] In some embodiments, a plurality of the installation frames are each provided with an installation identification block, and the installation identification block is used to mark the stacking order of the plurality of the single-chip separators.

[0012] In some embodiments, guide blocks may be provided on opposite sides of the bottom of the installation frame, and guide holes are provided in the two guide blocks.

[0013] In some embodiments, the separation mechanism also includes two handles, which include a grip rod and two support rods fixed at opposite ends of the grip rod, and a slot is provided at the ends of the two support rods. When the two support rods are respectively inserted into the two ventilation holes, the edges of the two ventilation holes can be respectively clamped in the two slots.

[0014] In some embodiments, the inner diameter of the ventilation hole is 10-50 mm, and the hole spacing between two adjacent ventilation holes is 20-80 mm.

[0015] In some embodiments, the installation frame is a square installation frame, and the installation frame is formed by welding four alloy rods in sequence.

[0016] In some embodiments, an oil scraper is further included, which includes a push rod and a scraper fixed to one end of the push rod, and the scraper is in sliding contact with the inner wall of the recessed portion to scrape off the paint attached to the separation sheet.

[0017] Compared with the prior art, the utility model provides a separation mechanism for recovering paint mist, which is formed by stacking a plurality of single-chip separators in sequence. The separation sheet is arranged in an installation frame. A plurality of protrusions are provided on the separation sheet. The plurality of protrusions are arranged at intervals, and a recessed portion is formed between two adjacent protrusions. At least one oil leakage hole is provided at the lower end of the plurality of protrusions and recessed portions on the installation frame corresponding to the plurality of protrusions, and a plurality of air vents are evenly distributed on the separation sheet, and the plurality of air vents on two adjacent separation sheets are staggered. A longer flow channel can be formed inside the separation mechanism, and the paint mist enters each layer of single-chip separators through the air vents. The paint mist stays in the flow channel for a longer time. After the paint mist particles can collide with the plurality of single-chip separators in sequence along the flow channel, the paint mist particles can be better adsorbed on the separation sheet, and the recovery effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a separation mechanism for paint mist recovery provided by the utility model;

[0019] Figure 2 yes Figure 1 A is an enlarged schematic diagram;

[0020] Figure 3 yes Figure 1 A magnified schematic diagram of B;

[0021] Figure 4 It is a structural schematic diagram of the single-chip separator of the utility model;

[0022] Figure 5 yes Figure 4 A magnified schematic diagram of middle C;

[0023] Figure 6 This is a front view of a separation mechanism for paint mist recovery provided by the utility model;

[0024] Figure 7 It is a structural schematic diagram of another embodiment of a separation mechanism for paint mist recovery of the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] See also Figures 1 to 7The utility model provides a separation mechanism for paint mist recovery. A relatively long flow channel can be formed in the separation mechanism, so that the paint mist can be retained for a longer time, and the paint mist particles can collide with multiple single-chip separators along the flow channel for multiple times, and can be adsorbed on the single-chip separators. The paint mist particles form droplets under their own gravity and flow down along the single-chip separators, thereby improving the recovery efficiency of the paint mist.

[0027] In this specific embodiment, a separation mechanism for recovering paint mist is provided, the separation mechanism includes a plurality of single-chip separators 1, the single-chip separators 1 include a mounting frame 11, and a separation sheet 12 arranged in the mounting frame 11, the separation sheet 12 is provided with a plurality of protrusions 121, the plurality of protrusions 121 are arranged at intervals, a recessed portion 122 is formed between two adjacent protrusions 121, at least one oil leakage hole 110 is provided at the lower end of the plurality of protrusions 121 and the recessed portion 122 on the mounting frame 11, and a plurality of ventilation holes 120 are evenly distributed on the separation sheet 12, when the plurality of single-chip separators 1 are stacked in sequence to form the separation mechanism, the plurality of ventilation holes 120 on two adjacent separation sheets 12 are staggered.

[0028] In actual use, the separation mechanism is placed in the recovery box, and the pipe of the fan is connected to the spraying area and the recovery box. When the paint mist is pumped into the recovery box, the paint mist enters the separation mechanism through the multiple air vents on the outermost single-chip separator, and the paint mist flows in the flow channel formed between the multiple single-chip separators. After the paint mist particles can collide with the separation sheets of the multiple single-chip separators in turn along the flow channel, the paint mist particles can be better adsorbed on the separation sheets, and the paint mist particles fall into the installation frame by their own gravity and are discharged through the oil leakage holes, which can effectively recover the paint and reduce subsequent pipeline and equipment pollution.

[0029] It should be noted that the separator is in a wavy shape as a whole, and a V-shaped angle is formed between the concave portion and the two adjacent convex portions, and the angle of the V-shaped angle is 30°-150°. The angle of the V-shaped angle is 30°, 45°, 60°, 90°, 120° or 150°. In this specific embodiment, the angle of the V-shaped angle is 90°.

[0030] Furthermore, the number of the single-chip separators 1 is 4-12. In the present specific embodiment, the number of the single-chip separators 1 is 6. The mounting frame 11 is a square mounting frame 11. The mounting frame 11 is formed by welding four alloy rods in sequence. The length and width of the mounting frame 11 can be designed as needed. In actual use, it is necessary to ensure that when the separation mechanism is set in the recovery box, the separation mechanism can separate the recovery box into two sections, and the two sections are connected via the separation mechanism.

[0031] In this specific embodiment, the separation sheet 12 is an alloy separation sheet. Of course, in other embodiments, the separation sheet 12 can also be a stainless steel separation sheet. It should be noted that the separation sheet 12 is welded with the mounting frame 11 to form an integrated structure. When the two single-piece separators 1 are stacked together, a flow gap is formed between the two separation sheets 12.

[0032] In this specific embodiment, the plurality of vent holes 120 are spaced apart on the plurality of protrusions 121 of the separation sheet 12. When the plurality of single-sheet separators 1 are stacked in sequence to form the separation mechanism,

[0033] The paint mist enters into the separation mechanism through the multiple vent holes 120 on the outermost single-piece separator 1.

[0034] It should be noted that by staggering the multiple air holes 120 on two adjacent separation sheets 12, a curved flow channel can be formed between the two separation sheets 12, which can extend the residence time of the paint mist between the two adjacent separation sheets 12, so that the paint mist particles can collide with the two separation sheets 12 multiple times, thereby improving the recovery efficiency of the paint mist particles.

[0035] It should be noted that in order to prolong the residence time of the paint mist particles between two adjacent separation sheets, the inner diameter of the vent hole 120 needs to be designed. The vent hole 120 should not be too large. If the vent hole 120 is too small, the paint mist particles will easily clog the vent hole. If the vent hole 120 is too large, the residence time of the paint mist between two adjacent separation sheets 12 will be short. Specifically, the inner diameter of the vent hole 120 is 10-50 mm, and the hole spacing between two adjacent vent holes 120 is 20-80 mm. In the present specific embodiment, the inner diameter of the vent hole 120 is 26.5 mm, and the hole spacing between two adjacent vent holes 120 is 50 mm.

[0036] In one embodiment, if there is no need to disassemble the separation mechanism for cleaning, the two adjacent single-chip separators 1 can be welded to form an integral structure; in this specific embodiment, in order to facilitate the disassembly of the separation mechanism, specifically, the two adjacent mounting frames 11 are fixedly connected via a connecting member 2.

[0037] It should be noted that the connecting member 2 is not limited to a specific structure. As long as it can ensure that the two adjacent single-chip separators 1 can be fixedly connected and can be disassembled when cleaning is required, no further details will be given here.

[0038] In this specific embodiment, the two adjacent mounting frames 11 are fixedly connected via a connecting member 2, and the connecting member includes two bolts 21, two nuts and a connecting plate 22. The two nuts are fixed on the two adjacent mounting frames 11. The two bolts 21 are inserted through the connecting plate 22 and then screwed together with the two nuts to fix the two mounting frames.

[0039] Specifically, the connecting plate 22 is provided with a connecting hole and a notch, a bolt 21 is inserted into the connecting hole and screwed with a nut, another bolt 21 is clamped in the notch, and the two installation frames 11 can be fixed by screwing and tightening the other bolt 21 and a nut.

[0040] In other embodiments, a pressing block is correspondingly provided on two adjacent installation frames 11, and the two adjacent installation frames 11 can also be fixed by cooperating with a quick fixing clip commonly sold on the market and the two adjacent pressing blocks. It should be noted that the number of connecting members 2 can be increased according to the connection strength of the separation mechanism. In this specific embodiment, the two alloy rods corresponding to the two installation frames 11 are fixedly connected by two connecting members 2.

[0041] On the basis of the above scheme, since the installation between two adjacent single-chip separators 1 requires ensuring that the multiple ventilation holes 120 on the two adjacent separation sheets 12 are staggered; therefore, after the separation mechanism is disassembled and cleaned, in order to avoid installation errors, specifically, multiple installation frames 11 are each provided with an installation identification block 111, and the installation identification block 111 is used to mark the stacking order of the multiple single-chip separators 1.

[0042] In one embodiment, guide blocks 112 can be provided on opposite sides of the bottom of the installation frame 11, and guide holes are provided in the two guide blocks 112; after the separation mechanism is installed, it can ensure that there is a height difference between the oil leakage hole on the installation frame 11 and the recovery box. Specifically, when the paint mist particles dripping from the oil leakage hole on the installation frame 11 fall into the recovery box, the paint mist particles can be discharged from the guide holes in the guide blocks 112.

[0043] On the basis of the above scheme, in order to facilitate the operator to carry the separation mechanism, specifically, the separation mechanism also includes two handles 3, the handles 3 include a grip rod 31, and two support rods 32 fixed at the opposite ends of the grip rod 31, and the ends of the two support rods 32 are each provided with a slot 320. When the two support rods 32 are respectively inserted into the two ventilation holes 120, the edges of the two ventilation holes 120 can be respectively clamped in the two slots 320.

[0044] It should be noted that two vertical rods are arranged at intervals at the ends of the two support rods 32, and the slot 320 is formed between the two vertical rods; specifically, when the operator needs to carry the separation mechanism, he only needs to insert the four support rods 32 on the two handles 3 into the four ventilation holes 120 respectively, and in the process of lifting upwards, the edge of the ventilation hole 120 is stuck in the slot 320.

[0045] In another embodiment, in order to facilitate the cleaning of the single-piece separator 1, specifically, it also includes an oil scraper 4 for scraping off the paint adsorbed on the separation sheet 12, and the oil scraper includes a push rod 41, and a scraper 42 fixed to one end of the push rod. When the scraper 42 is arranged in the recessed portion and the scraper 42 contacts the inner wall of the recessed portion, the operator pulls the push rod 41 to make the scraper 42 slide and contact with the inner wall of the recessed portion, and the scraper 42 can scrape off the paint attached to the separation sheet 1, thereby effectively reducing the cleaning intensity of the single-piece separator 1.

[0046] It should be noted that conventional separators for recovering paint mist particles are in the form of filter mesh, multiple U-shaped straight plates staggered with each other, and funnel. The filter mesh has small pores, large flow resistance, and requires high wind pressure, which is easy to cause blockage and has low efficiency. The multiple U-shaped straight plates staggered with each other form a flow channel with multiple right angles inside. When the paint mist passes through the right-angle bends, there will be great fluid resistance and low recovery efficiency. The funnel form usually has a small hole in the side wall of the funnel, and a fan is used to extract air to remove the paint mist. The structure is complex and the efficiency is low.

[0047] It should be noted that the longer the paint mist stays in the flow channel, the better, and the smaller the separator flow resistance, the better. The time the paint mist stays in the flow channel is related to the fluid velocity and the length of the flow channel. The slower the flow rate, the more times the particles collide, and the better the effect. At the same time, the longer the flow channel, the more times the particles collide, and the better the effect. The flow resistance of the separator is related to the fluid velocity and the dynamic pressure difference. The smaller the dynamic pressure difference, the smaller the flow resistance.

[0048] Through simulation experiment analysis, in a closed environment, the inlet flow rate is 2000m 3 / h, the average speed inside the separation mechanism of this scheme is 3.1~3.2m / s, and the dynamic pressure difference between the inlet and outlet is 0.01~0.03Pa, while the average speed of the multiple U-shaped straight plates staggered form is 3.2~3.9m / s, and the dynamic pressure difference between the inlet and outlet is 0.02~0.04Pa. Obviously, the flow channel length of the separation mechanism of this scheme is longer, and the flow resistance is also smaller than that of the multiple U-shaped straight plates staggered form. In terms of paint recovery rate, most of the recovery efficiencies on the market are 60%, while the recovery efficiency of the separation mechanism of this scheme, through actual measurement, is 60%~90%.

[0049] Compared with the prior art, the utility model provides a separation mechanism for recovering paint mist, which is formed by stacking a plurality of single-chip separators in sequence. The separation sheet is arranged in an installation frame. A plurality of protrusions are provided on the separation sheet. The plurality of protrusions are arranged at intervals, and a recessed portion is formed between two adjacent protrusions. At least one oil leakage hole is provided at the lower end of the plurality of protrusions and recessed portions on the installation frame corresponding to the plurality of protrusions, and a plurality of air vents are evenly distributed on the separation sheet, and the plurality of air vents on two adjacent separation sheets are staggered. A longer flow channel can be formed inside the separation mechanism, and the paint mist enters each layer of single-chip separators through the air vents. The paint mist stays in the flow channel for a longer time. After the paint mist particles can collide with the plurality of single-chip separators in sequence along the flow channel, the paint mist particles can be better adsorbed on the separation sheet, and the recovery effect is better.

[0050] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A separation mechanism for paint mist recovery, characterized in that: The separation mechanism includes a plurality of single-piece separators, and the single-piece separators include a mounting frame and a separation sheet arranged in the mounting frame. The separation sheet is provided with a plurality of protrusions, and the plurality of protrusions are arranged at intervals, and a recessed portion is formed between two adjacent protrusions. At least one oil leakage hole is arranged at the lower end of the plurality of protrusions and recessed portions on the mounting frame corresponding to the plurality of protrusions, and the separation sheet is evenly distributed with a plurality of ventilation holes. When the plurality of single-piece separators are stacked in sequence to form the separation mechanism, the plurality of ventilation holes on two adjacent separation sheets are staggered.

2. A separation mechanism for paint mist recovery according to claim 1, characterized in that: The separation sheet is in a wave shape as a whole, and a V-shaped angle is formed between the concave portion and two adjacent convex portions, and the angle of the V-shaped angle is 30°-150°.

3. A separation mechanism for paint mist recovery according to claim 1, characterized in that: The number of the monolithic separators is 4-12.

4. A separation mechanism for recovering paint mist according to claim 1, characterized in that: The two adjacent installation frames are fixedly connected via a connecting piece, which includes two bolts, two nuts and a connecting piece. The two nuts are fixed on the two adjacent installation frames. The two bolts are inserted through the connecting piece and then screwed with the two nuts to fix the two installation frames.

5. A separation mechanism for recovering paint mist according to claim 1 or 4, characterized in that: A plurality of the installation frames are each provided with an installation identification block, and the installation identification block is used to mark the stacking order of the plurality of the single-chip separators.

6. A separation mechanism for recovering paint mist according to claim 1, characterized in that: Guide blocks can be arranged on opposite sides of the bottom of the installation frame, and guide holes are arranged in the two guide blocks.

7. A separation mechanism for recovering paint mist according to claim 1, characterized in that: The separation mechanism also includes two handles, which include a grip rod and two support rods fixed at opposite ends of the grip rod, and a slot is provided at the ends of the two support rods. When the two support rods are respectively inserted into the two ventilation holes, the edges of the two ventilation holes can be respectively clamped in the two slots.

8. A separation mechanism for recovering paint mist according to claim 1, characterized in that: The inner diameter of the ventilation holes is 10-50 mm, and the hole spacing between two adjacent ventilation holes is 20-80 mm.

9. A separation mechanism for recovering paint mist according to claim 1, characterized in that: The installation frame is a square installation frame, and the installation frame is formed by welding four alloy rods in sequence.

10. A separation mechanism for recovering paint mist according to claim 1, characterized in that: It also includes an oil scraper, which includes a push rod and a scraper fixed to one end of the push rod, and the scraper is in sliding contact with the inner wall of the recessed portion to scrape off the paint attached to the separation sheet.

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