Perspective dry type paint mist separation device with replaceable filter element

Abstract

The utility model relates to a perspective dry-type paint mist separating device with a replaceable filter element, which comprises a paperboard shell and a filter element assembly, an inclined air deflector is mounted at the upper end of the paperboard shell, a turbulent flow area is arranged between the filter element assembly and the front side of the paperboard shell, and a ribbon wood frame support is mounted at the turbulent flow area. A plurality of ribbons are mounted on one side of the ribbon wood frame bracket; the filter element assembly comprises a plurality of filter element units, and a detachable back plate is mounted at the air outlet; and a plurality of DPA filter support plates are arranged below the filter element assembly. According to the utility model, the online filtering time can be prolonged, and the utilization rate and the overall paint capacity of the device are improved; perspective observation can be achieved, modular design and assembly are conducted inside, the filter element units, the detachable back plate and the like can be detached and replaced, and the resource utilization rate is increased; through the arrangement of the ribbon wood frame support, the ribbons, the turbulent flow areas and the like, over-sprayed paint mist is promoted to be uniformly adsorbed on the filter material, so that the adsorption effect is improved, and the replacement frequency of the filter element unit is reduced.

Description

Technical Field

[0001] The utility model relates to a perspective dry paint mist separation device with replaceable filter elements, belonging to the technical field of paint mist filtration. Background Technique

[0002] In the field of dry spray booths, various dry spray booths with different functional orientations have been derived at present and are widely used in different automobile spraying lines.

[0003] For the treatment of paint mist in dry spray booths, dry paint mist separation devices are usually adopted. For example, the "dry settling paint mist separation device and its application" disclosed in the application number 201510620894.9 includes a device inlet, an air diversion separation channel, a paint collection chamber, a paint mist separation chamber and a device outlet in sequence. An air diversion separation channel connecting the device inlet and the paint mist separation chamber is arranged in this device; the inlet of the paint mist separation chamber is at the bottom and the outlet is at the top, and paint mist separation units are arranged in the paint mist separation chamber. An air diversion separation plate with an arc-shaped cross section is arranged in the air diversion separation channel, and one of the air diversion separation plates and the partition form a rapidly narrowing air flow channel with a Venturi structure. Several rows of paint mist separation units with the windward surface facing downwards or obliquely downwards are arranged in the paint mist separation chamber to collide and intercept and separate the paint mist carried in the air in the mainstream direction. Compared with the prior art, the utility model has good paint mist separation effect, large paint mist separation and accommodation capacity, and can greatly reduce environmental pollution and energy consumption.

[0004] However, these existing dry settling paint mist separation devices cannot currently monitor the state of the internal filter material in real time. The filter elements are usually not replaced, and the whole device is directly burned or disposed of in other ways after being adsorbed and saturated, which is easy to cause waste of resources; in addition, the filtration efficiency needs to be improved. Especially when the paint mist particles are relatively fine, it is often difficult to completely remove the paint mist particles in the air. In addition, the filter elements and the internal layout also affect the overall performance of the device. The conventional design cannot make full use of the airflow characteristics, resulting in uneven adsorption of some impurities on the filter material.

[0005] Based on this, the present utility model is proposed. Content of the Utility Model

[0006] Aiming at the deficiencies existing in the prior art, the utility model provides a perspective dry paint mist separation device with replaceable filter elements, and the specific technical solutions are as follows:

[0007] A perspective dry paint mist separation device with replaceable filter elements, including a cardboard housing and a filter element assembly located inside the cardboard housing. The upper end of the cardboard housing is open, and an air outlet is provided at the rear side of the cardboard housing. An inclined air guide plate is installed at the upper end of the cardboard housing. A turbulent flow area is provided between the filter element assembly and the front side of the cardboard housing. The space above the air guide plate is communicated with the turbulent flow area. A ribbon wooden frame support is installed at the turbulent flow area, and a plurality of ribbons are installed on one side of the ribbon wooden frame support. The filter element assembly includes multiple filter element units, and the air outlets correspond to the filter element units one by one. A detachable back plate is installed at the air outlet. Multiple DPA filter support plates are provided below the filter element assembly.

[0008] Further improvement: The lower end of the cardboard housing is open, and a cardboard groove that completely covers the lower end of the cardboard housing is installed at the lower end of the cardboard housing.

[0009] Further improvement: An upper support restraint plate is provided between the air guide plate and the upper end of the filter element assembly, and the upper support restraint plate is fixedly connected to the cardboard housing; Multiple support wooden strips are installed between the upper support restraint plate and the cardboard groove.

[0010] Further improvement: A wooden bottom frame is installed at the bottom of the cardboard groove, the DPA filter support plates are fixedly installed on the wooden bottom frame, and the DPA filter support plates are arranged in a maze structure on the wooden bottom frame.

[0011] Further improvement: A support wooden frame for supporting the filter element unit is provided below the filter element unit, and at least one limit wooden strip is provided on each of the left and right sides of the filter element unit, and the limit wooden strip is fixedly connected to the support wooden frame.

[0012] Further improvement: A DPA wooden frame baffle is provided on the front side of the filter element unit, the lower end of the DPA wooden frame baffle covers the upper end of the filter element unit, the DPA wooden frame baffle is located between the ribbon wooden frame support and the filter element unit, and at least two wooden frame support plates are fixedly installed at the lower end of the DPA wooden frame baffle.

[0013] Further improvement: The filter element unit includes a filter paper shell, the front and rear sides of the filter paper shell are both open, multiple glass fiber tube bundles are installed inside the filter paper shell, a gap is provided between adjacent two glass fiber tube bundles, and the glass fiber tube bundles are arranged in a maze structure.

[0014] Further improvement: At least two bracket components are installed at the bottom of the cardboard groove, and a wooden support plate is installed below the bracket components.

[0015] Further improvement: An observation port is provided on the front side of the cardboard housing, and a transparent plate that completely covers the observation port is installed on the front side of the cardboard housing.

[0016] Advantages of the present utility model:

[0017] 1. The replaceable perspective dry paint mist separation device with a filter element of the present utility model can extend the online filtration time, improve the utilization rate of the device and the overall paint capacity.

[0018] 2. It can be observed perspectively, with modular design and assembly inside. The filter element unit and the detachable back panel, etc. are detachable and replaceable, improving the resource utilization rate;

[0019] 3. By setting the ribbon wooden frame support and the ribbon, a turbulent flow area exists inside. Coupled with the layout of the internal filter element components, it promotes the uniform adsorption of overspray paint mist on the filter material, thereby improving the adsorption effect and reducing the replacement frequency of the filter element unit. Description of the drawings

[0020] Figure 1 It is a three-dimensional schematic diagram of the replaceable perspective dry paint mist separation device with a filter element of the present utility model;

[0021] Figure 2 It is an internal schematic diagram of the replaceable perspective dry paint mist separation device with a filter element of the present utility model;

[0022] Figure 3 It is a schematic diagram of the replaceable perspective dry paint mist separation device with a filter element of the present utility model when the cardboard shell is not installed;

[0023] Figure 4 It is a connection schematic diagram of the ribbon wooden frame support and the ribbon of the present utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of the filter element unit of the present utility model. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] In the description of the present utility model, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] Embodiment 1

[0029] As Figures 1 to 5 shown, the filter element replaceable perspective dry paint mist separation device includes a cardboard outer shell 10 and a filter element assembly located inside the cardboard outer shell 10. The upper end of the cardboard outer shell 10 is open. An air outlet is provided at the rear side of the cardboard outer shell 10. A deflector 11 is installed at the upper end of the cardboard outer shell 10 and is inclined. A turbulent flow area is provided between the filter element assembly and the front side of the cardboard outer shell 10. The space above the deflector 11 is communicated with the turbulent flow area. A ribbon wooden frame support 20 is installed at the turbulent flow area. A plurality of ribbons 22 are installed on one side of the ribbon wooden frame support 20; the filter element assembly includes a plurality of filter element units 30. The air outlets correspond to the filter element units 30 one by one. A detachable back plate 14 is installed at the air outlet; a plurality of DPA filter support plates 50 are provided below the filter element assembly.

[0030] For the filter element replaceable perspective dry paint mist separation device of the present utility model, its filter element unit 30 is replaceable and can be observed perspectively. It is a dry paint mist separation device. Its interior is designed and assembled modularly. The upper part of the deflector 11 is the filter inlet. The ribbon wooden frame support 20 and the ribbons 22 form a stirring module. All the DPA filter support plates 50 can form a bottom sedimentation adsorption module. The filter element unit 30 is replaceable, and the detachable back plate 14 is detachable and replaceable. It can effectively improve the paint capacity, greatly extend the online filtration time and service life, and improve the resource utilization rate.

[0031] The streamer 22 plays a stirring role, enabling the air containing overspray mist in the turbulent flow area to be separated from the air more quickly.

[0032] The filter element unit 30 includes a filter paper shell 301. Both the front and rear sides of the filter paper shell 301 are open. A plurality of glass fiber bundles 31 are installed inside the filter paper shell 301. There are gaps between adjacent two glass fiber bundles 31, and the glass fiber bundles 31 are arranged in a maze structure.

[0033] Wherein, the lower end of the cardboard outer shell 10 is open, and a cardboard groove 601 that completely covers the lower end of the cardboard outer shell 10 is installed at the lower end of the cardboard outer shell 10.

[0034] A DPA wooden frame baffle 17 is arranged on the front side of the filter element unit 30. The lower end of the DPA wooden frame baffle 17 covers the upper end of the filter element unit 30. The DPA wooden frame baffle 17 is located between the streamer wooden frame support 20 and the filter element unit 30. At least two wooden frame support plates 16 are fixedly installed at the lower end of the DPA wooden frame baffle 17.

[0035] In this embodiment, there are two filter element units 30. The first filter element unit 30 is located above the second filter element unit 30. In some embodiments, the number of the filter element units 30 can be adjusted according to the actual situation.

[0036] The upper DPA wooden frame baffle 17 can be used to block the gap between the first filter element unit 30 and the air deflector 11 to prevent the air containing overspray mist from entering. The upper DPA wooden frame baffle 17 can be used to block the gap between the two filter element units 30 to prevent the air containing overspray mist from entering.

[0037] An observation port is arranged on the front side of the cardboard outer shell 10, and a transparent plate 12 that completely covers the observation port is installed on the front side of the cardboard outer shell 10.

[0038] Through the transparent plate 12, the filtering and accumulation conditions of the paint mist in the turbulent flow area and at the filter element unit 30 can be observed.

[0039] Working principle: The perspective dry paint mist separation device with replaceable filter element is docked with the filter air inlet below the spray booth. The air containing overspray mist enters the interior of the cardboard housing 10 from above through the filter air inlet, enters the turbulent flow area under the guiding action of the air guiding plate 11, and is disturbed by the streamer 22 on the surface of the streamer wooden frame support 20 under the drive of the air flow. The air containing overspray mist is initially subjected to stirring turbulence, and part of the air containing overspray mist is separated and settled. Most of the air containing overspray mist enters the interior of the filter element unit 30 for filtration. The filter element unit 30 is the main filtration module. The air containing overspray mist enters the densely arranged fiberglass tube bundles 31 inside the filter element unit 30. After separation and adsorption; to ensure the adsorption effect, a paint mist cotton board can also be arranged between the filter element unit 30 and the detachable back plate 14. After further filtration by the paint mist cotton board, the treated air reaches the air outlet. A small part of the air containing overspray mist is directly adsorbed by the DPA wooden frame baffle 17, and another part of the air containing overspray mist directly reaches the bottom and is adsorbed by the DPA filter support plate 50, and sedimentation will also occur and accumulate inside the cardboard groove 601.

[0040] Embodiment 2

[0041] To maintain the internal structure of the cardboard housing 10 and keep the stability of its appearance, an upper support restraint plate 13 is arranged between the air guiding plate 11 and the upper end of the filter element assembly. The upper support restraint plate 13 is fixedly connected to the cardboard housing 10; multiple support wooden strips 131 are installed between the upper support restraint plate 13 and the cardboard groove 601.

[0042] Embodiment 3

[0043] To facilitate the installation of the DPA filter support plate 50, a wooden bottom frame 61 is installed at the bottom of the cardboard groove 601. The DPA filter support plate 50 is fixedly installed on the wooden bottom frame 61, and the DPA filter support plates 50 are arranged in a maze structure on the wooden bottom frame 61.

[0044] Embodiment 4

[0045] To facilitate the installation and disassembly of the filter element unit 30; a support wooden frame 33 for supporting the filter element unit 30 is arranged below the filter element unit 30. At least one limit wooden strip 32 is arranged on each of the left and right sides of the filter element unit 30, and the limit wooden strip 32 is fixedly connected to the support wooden frame 33.

[0046] Embodiment 5

[0047] To facilitate handling, such as using a forklift for handling, at least two bracket assemblies 60 are installed at the bottom of the cardboard groove 601, and a wooden pallet 40 is installed below the bracket assemblies 60.

[0048] Among them, the filter element unit 30 and the paint mist cotton board on the detachable back plate 14 can be detachably replaced when reaching the adsorption saturation, instead of replacing the entire filter element replaceable perspective dry paint mist separation device, which greatly extends the online filtration time and the overall paint capacity; when the internal deposition of overspray mist is too much and needs to be replaced, the wooden pallet 40 below can be removed and used on the new filter element replaceable perspective dry paint mist separation device, saving resources and usage costs.

[0049] Example 6

[0050] In Examples 1-5, the distribution density of the glass fiber bundles 31 in the filter element unit 30 can be adjusted according to actual needs and can be the same or different. The masses of all the streamers 22 are also equal.

[0051] However, for some special overspray mists (such as overspray mists with a relatively high density, such as those mixed with some metal dust), when they are filtered in the cardboard housing 10, they will be severely unevenly distributed, resulting in the two filter element units 30 above and below. Often, the second filter element unit 30 is close to the adsorption limit, while the first filter element unit 30 may only reach half of the adsorption limit. At this time, if both filter element units 30 are replaced, waste will be generated; if only the second filter element unit 30 is replaced, the replacement frequency will be too high. Therefore, in this embodiment, adjustments are needed:

[0052] The ratio of the distribution density of the glass fiber bundles 31 in the first filter element unit 30 to the distribution density of the glass fiber bundles 31 in the second filter element unit 30 is x, where 1.2 ≤ x ≤ 1.5; the distribution density refers to the number of glass fiber bundles 31 per unit space. For example, the distribution density of the glass fiber bundles 31 in the first filter element unit 30 can be 46 roots / m 3 ; if the volume inside the filter paper shell 301 is 0.5 m 3 , the corresponding number of glass fiber bundles 31 is 23 roots.

[0053] A plurality of horizontal wooden strips 21 are installed inside the streamer wooden frame support 20. The horizontal wooden strips 21 are arranged at equal intervals along the height direction of the streamer wooden frame support 20. The tail ends of the streamers 22 are fixedly connected to one side of the horizontal wooden strips 21, and the streamers 22 on the horizontal wooden strips 21 are arranged at equal intervals;

[0054] The masses of all the streamers 22 on each horizontal wooden strip 21 are equal;

[0055] The masses of the streamers 22 on the horizontal wooden strips 21 are arranged to increase sequentially in the downward direction.

[0056] For example, in the top-down order, the mass of all streamers 22 on the first horizontal wooden strip 21 is 5 g, the mass of all streamers 22 on the second horizontal wooden strip 21 is 6 g, the mass of all streamers 22 on the third horizontal wooden strip 21 is 7 g, and so on.

[0057] Using the same batch of air containing overspray mist (with a metal dust content of 15 - 17 mg / m 3 ) to pass through the topcoat large paper box (such as the replaceable filter element perspective dry paint mist separation device described in Example 1), after cumulative filtration for 72 h, weigh and calculate the difference in the cumulative weight of the paint mist β, where β is the absolute value of the difference between γ and δ, γ is the difference in the weight change of the first filter element unit before and after filtration, and δ is the difference in the weight change of the second filter element unit before and after filtration; when β approaches 0, it indicates that the upper and lower filtration effects are close, and there will be no phenomenon of premature saturation of the second filter element unit.

[0058] Test 1: As shown in Example 1, x = 1, and the mass of all streamers 22 is also equal; finally, β = 11.3 kg.

[0059] Test 2: As shown in Example 6, x = 1.5, and the mass of the streamers 22 on the horizontal wooden strip 21 is arranged to increase sequentially in the top-down direction; finally, β = 1.6 kg.

[0060] Test 3: x = 1.5, and the mass of all streamers 22 is also equal; finally, β = 10.1 kg.

[0061] Test 4: x = 1, and the mass of the streamers 22 on the horizontal wooden strip 21 is arranged to increase sequentially in the top-down direction; finally, β = 7.9 kg.

[0062] Test 5: x = 2, and the mass of the streamers 22 on the horizontal wooden strip 21 is arranged to increase sequentially in the top-down direction; finally, β = 8.6 kg.

[0063] The upper streamers 22 are light and the lower streamers 22 are heavy, so that the stirring in the upper region is more intense and the stirring in the lower region is relatively slower; combined with the special distribution of the glass fiber bundles 31 in the upper and lower filter element units 30, it can maximize the synchronization of the adsorption of the denser overspray mist by the two filter element units 30.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A perspective dry paint mist separation device with replaceable filter elements, comprising a cardboard housing (10) and a filter element assembly located inside the cardboard housing (10). The upper end of the cardboard housing (10) is open, and an air outlet is provided at the rear side of the cardboard housing (10), characterized in that: An inclined air guiding plate (11) is installed at the upper end of the cardboard outer shell (10). A flow disturbance area is provided between the filter element assembly and the front side of the cardboard outer shell (10). The space above the air guiding plate (11) is communicated with the flow disturbance area. A ribbon wooden frame support (20) is installed at the flow disturbance area, and a plurality of ribbons (22) are installed on one side of the ribbon wooden frame support (20); the filter element assembly includes a plurality of filter element units (30), and the air outlet corresponds to the filter element unit (30) one by one. A detachable back plate (14) is installed at the air outlet; a plurality of DPA filter support plates (50) are provided below the filter element assembly.

2. The perspective dry paint mist separation device with replaceable filter element according to claim 1, characterized in that: The lower end of the cardboard outer shell (10) is open, and a cardboard groove (601) that completely covers the lower end of the cardboard outer shell (10) is installed at the lower end of the cardboard outer shell (10).

3. The perspective dry paint mist separation device with replaceable filter element according to claim 2, characterized in that: An upper support restraint plate (13) is provided between the air guiding plate (11) and the upper end of the filter element assembly. The upper support restraint plate (13) is fixedly connected to the cardboard outer shell (10); a plurality of support wooden strips (131) are installed between the upper support restraint plate (13) and the cardboard groove (601).

4. A perspective dry paint mist separation device with replaceable filter element according to claim 2, characterized in that: A wooden bottom frame (61) is installed at the bottom of the cardboard groove (601). The DPA filter support plate (50) is fixedly installed on the wooden bottom frame (61), and the DPA filter support plates (50) are arranged in a maze structure on the wooden bottom frame (61).

5. The perspective dry paint mist separation device with replaceable filter element according to claim 1, characterized in that: A support wooden frame (33) for supporting the filter element unit (30) is provided below the filter element unit (30). At least one limiting wooden strip (32) is provided on each of the left and right sides of the filter element unit (30), and the limiting wooden strip (32) is fixedly connected to the support wooden frame (33).

6. The perspective dry paint mist separation device with replaceable filter element according to claim 1, characterized in that: A DPA wooden frame baffle (17) is provided on the front side of the filter element unit (30). The lower end of the DPA wooden frame baffle (17) covers the upper end of the filter element unit (30). The DPA wooden frame baffle (17) is located between the ribbon wooden frame support (20) and the filter element unit (30), and at least two wooden frame support plates (c16) are fixedly installed at the lower end of the DPA wooden frame baffle (17).

7. A perspective dry paint mist separation device with replaceable filter element according to claim 1, characterized in that: The filter element unit (30) includes a filter element paper shell (301). The front and rear sides of the filter element paper shell (301) are both open. A plurality of glass fiber bundles (31) are installed inside the filter element paper shell (301). A gap is provided between adjacent two glass fiber bundles (31), and the glass fiber bundles (31) are arranged in a maze structure.

8. A perspective dry paint mist separation device with replaceable filter elements according to claim 2, characterized in that: At least two bracket assemblies (60) are installed at the bottom of the cardboard groove (601), and a wooden support plate (40) is installed below the bracket assembly (60).

9. The perspective dry paint mist separation device with replaceable filter element according to claim 1, characterized in that: An observation port is provided on the front side of the cardboard outer shell (10), and a transparent plate (12) that completely covers the observation port is installed on the front side of the cardboard outer shell (10).

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