A paint mist water removal bag filter

Abstract

The utility model discloses a kind of lacquer mist water-removing type bag filter, belong to air purification equipment technical field, including outer frame, the outer frame is movably sleeved with inner support frame, the end portion of the inner support frame is fixedly connected with filter bag, the filter bag is made by filter cotton trapezoidal heat sealing process.The utility model in the present application, the non-woven fabric outer layer on filter bag intercepts large particle lacquer mist, prevents fiber layer from being blocked, polypropylene meltblown oil-absorbing cotton intercepts lacquer mist by diffusion effect and inertial collision, surface friction generates electrostatic adsorption tiny particle, polyester fiber on double-component intermediate layer intercepts dust particle, meltblown fiber is adsorbed water mist by capillary action, non-woven fabric inner layer guides water mist to settle along trapezoidal filter bag, prevents secondary pollution, utilizes positioning air duct to optimize airflow uniform flow efficiency of filter bag inner cavity, mixed gas enters filter bag, oil mist is intercepted by adsorption layer, water mist settles to filter bag bottom and is discharged, and practicality is good.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and more specifically, to a paint mist removal bag filter. Background Technology

[0002] Automotive painting generally refers to the painting of the bodies and parts of various types of vehicles, such as cars, buses, and trucks. Essentially, it's a process of covering the surface (substrate surface) of a treated object with paint, followed by drying to form a film. Paint mist removal bag filters are used in automotive painting. Traditional paint mist filters in the automotive painting field have the following problems: 1. Insufficient capacity to handle mixed contaminants: Paint mist generated during automotive painting is often accompanied by water mist, which comes from condensate from the air conditioning system or the humidity of the painting environment. Traditional filter bags, due to their simple structure, cannot effectively separate oily paint mist from water mist, leading to rapid clogging of the filter media; 2. Short lifespan and high cost: Ordinary filter bags have a replacement cycle of less than 3 months. Frequent replacements result in wasted manpower, resources, and materials. The annual consumable cost for a single unit can reach 20,000-30,000 yuan; 3. Large pressure fluctuations: The pressure difference rises sharply during operation, typically from 80Pa to over 200Pa within 3 months, affecting the stability of the air conditioning system and increasing fan energy consumption; 4. Inconvenient filter bag replacement. Therefore, we have proposed a paint mist removal bag filter. Utility Model Content

[0003] In view of the problems mentioned in the background art above, the purpose of this utility model is to provide a paint mist removal bag filter.

[0004] To solve the above problems, the present invention adopts the following technical solution: a paint mist removal bag filter, comprising an outer frame, an inner support frame movably sleeved on the outer frame, a filter bag fixedly connected to the end of the inner support frame, the filter bag being made by a trapezoidal heat sealing process of filter cotton, multiple positioning air channels being provided inside the filter bag, two sliding grooves being provided on the inner wall of the outer frame, sliders being provided on both sides of the inner support frame, the sliders being movably sleeved into the inner cavity of the sliding grooves, insertion holes being provided on the sliders, and a fixing mechanism being provided on the side of the outer frame.

[0005] As a preferred embodiment of this utility model, the fixing mechanism includes a telescopic cylinder fixedly connected to the outside of the outer frame and a spring fixedly connected to the outside of the outer frame. The spring is located in the inner cavity of the telescopic cylinder. A pull plate is fixedly connected to the end of the spring. A pin is fixedly connected to the inner side of the pull plate. The end of the pin is movably sleeved into the inner cavity of the insertion hole.

[0006] As a preferred embodiment of this utility model, the filter cotton is made of a non-woven outer layer, polypropylene meltblown oil-absorbing cotton, a two-component intermediate layer and a non-woven inner layer, wherein the two-component intermediate layer is composed of polyester fiber and meltblown fiber.

[0007] As a preferred embodiment of this utility model, a plurality of mounting seats are provided on the outer side of the outer frame, and the mounting seats are provided with mounting holes.

[0008] In a preferred embodiment of this utility model, the inner wall of the groove and the outer side of the slider are fitted together, and the outer side of the inner support frame and the inner side of the outer frame are fitted together.

[0009] In a preferred embodiment of this utility model, the inner diameter of the socket is equal to the outer diameter of the pin.

[0010] The advantages of this invention are as follows: In this invention, the non-woven outer layer of the filter bag intercepts large particles of paint mist, preventing fiber layer blockage. Polypropylene meltblown oil-absorbing cotton intercepts paint mist through diffusion and inertial collision, while surface friction generates electrostatic adsorption of tiny particles. Polyester fibers in the two-component intermediate layer intercept dust particles, and meltblown fibers adsorb water mist through capillary action. The non-woven inner layer guides water mist to settle along the trapezoidal filter bag, preventing secondary pollution. The positioning air duct optimizes the airflow uniformity within the filter bag cavity. When mixed gas enters the filter bag, oil mist is intercepted by the adsorption layer, and water mist settles to the bottom of the filter bag and is discharged. Through the innovative composite filter material structure and trapezoidal heat-sealing process, efficient separation of oil mist and water mist is achieved, breaking through the technical bottlenecks of short lifespan and high pressure differential of traditional filters. This invention offers significant economic and environmental benefits, extending the filter bag replacement cycle from 3 months to 5-6 months, reducing annual consumable costs by more than 40%, and stabilizing the operating pressure differential in the 80-150Pa range, ensuring continuous operation of the air conditioning system.

[0011] In this utility model, the outer frame and inner support frame are released by the coordinated use of a sliding groove, a sliding block, a insertion hole, a telescopic cylinder, a spring, a pull plate, and a pin. By pulling the pin to disengage it from the insertion hole on the sliding block, the inner support frame and the filter bag can be removed from the outer frame for replacement. At the same time, the inner support frame of another filter bag can be inserted into the outer frame. The outer frame and inner support frame are fixed by the cooperation between the insertion hole and the pin, thus realizing the function of convenient replacement of filter bags and having good practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is an exploded view of the overall structure of this utility model.

[0014] Figure 3 This is a cross-sectional view of the outer frame of this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the filter cotton of this utility model.

[0016] Figure 5 This utility model Figure 3 Enlarged diagram of point A in the diagram.

[0017] Figure 6 This is a schematic diagram of the positioning air duct of this utility model.

[0018] Figure 7 This is a cross-sectional schematic diagram of the filter bag of this utility model.

[0019] The following are the labels in the diagram: 1. Outer frame; 2. Inner support frame; 3. Filter bag; 4. Slide groove; 5. Slider; 6. Insertion hole; 7. Fixing mechanism; 8. Positioning air duct; 9. Telescopic cylinder; 10. Spring; 11. Pull plate; 12. Pin; 13. Non-woven outer layer; 14. Polypropylene meltblown oil-absorbing cotton; 15. Two-component intermediate layer; 16. Non-woven inner layer; 17. Filter cotton; 18. Mounting base; 19. Mounting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and 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 should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0023] like Figures 1 to 7 As shown, a paint mist removal bag filter includes an outer frame 1 made of aluminum alloy or galvanized sheet. An inner support frame 2, made of galvanized material, is movably sleeved on the outer frame 1. Filter bags 3 are fixedly connected to the ends of the inner support frame 2. The filter bags 3 are 592mm long, 592mm wide, 600mm long, and contain 6P filter bags. The filter bags 3 are manufactured using a trapezoidal heat-sealing process with filter cotton 17. The filter cotton 17 consists of a non-woven outer layer 13, polypropylene meltblown oil-absorbing cotton 14, a two-component intermediate layer 15, and a non-woven inner layer 16. The two-component intermediate layer 15 is composed of polyester fiber and meltblown fiber. The non-woven outer layer 13 intercepts large paint mist particles with a diameter >5μm, preventing fiber layer clogging. The polypropylene meltblown oil-absorbing cotton 14 has a fiber diameter of 0.5-20μm, and its microporous structure allows it to hold 20-30 times its own weight in oil. It intercepts paint mist through diffusion effect and inertial collision, and surface friction generates electrostatic adsorption of tiny particles. The bicomponent intermediate layer 15 is composed of 70% polyester fiber and 30% meltblown fiber, balancing interception efficiency and water mist separation capability. The polyester fiber intercepts dust particles with a gravimetric efficiency of ≥85%, while the meltblown fiber adsorbs water mist through capillary action. The nonwoven inner layer 16 guides the water mist to settle along the trapezoidal filter bag, preventing secondary pollution. Ultrasonic edge pressing is used to ensure sealing. The filter bag 3 has multiple positioning air channels 8 inside. The positioning air channels 8 are set every 150mm with the central axis of the filter bag 3 as the reference. The upper opening distance of the positioning air channels 8 is 120mm and the lower opening distance is 100mm, optimizing the airflow uniformity efficiency. The positioning air channels 8 are optimized by CFD simulation to make the airflow velocity difference <10%. The inner wall of the outer frame 1 is provided with two sliding grooves 4. The inner support frame 2 is provided with sliders 5 on both sides. The sliders 5 are movably sleeved into the inner cavity of the sliding grooves 4. The sliders 5 are provided with insertion holes 6. The side of the outer frame 1 is provided with a fixing mechanism 7. Example 2

[0024] Based on Example 1, such as Figure 1 , Figure 2 and Figure 5 As shown, the fixing mechanism 7 includes a telescopic cylinder 9 fixedly connected to the outside of the outer frame 1 and a spring 10 fixedly connected to the outside of the outer frame 1. The spring 10 is located in the inner cavity of the telescopic cylinder 9. A pull plate 11 is fixedly connected to the end of the spring 10. A pin 12 is fixedly connected to the inner side of the pull plate 11. The end of the pin 12 is movably sleeved into the inner cavity of the insertion hole 6. The spring force of the spring 10 drives the pin 12 to be inserted into the insertion hole 6, thereby connecting and fixing the outer frame 1 and the inner support frame 2. Example 3

[0025] Based on Embodiment 1 and Embodiment 2, such as Figures 1 to 5As shown, multiple mounting seats 18 are provided on the outer side of the outer frame 1. Mounting seats 18 are provided with mounting holes 19. The outer frame 1 is fixed by mounting seats 18, mounting holes 19 and bolts. The inner wall of the slide groove 4 is in contact with the outer side of the slider 5. The outer side of the inner support frame 2 is in contact with the inner side of the outer frame 1 to ensure the stability of the slider 5 in the slide groove 4, and at the same time ensure the stability of the inner support frame 2 in the inner side of the outer frame 1. The inner diameter of the insertion hole 6 is equal to the outer diameter of the pin 12 to ensure the stability of the end of the pin 12 inserted into the inner cavity of the insertion hole 6.

[0026] It should be noted that this utility model is a paint mist removal bag filter. In use, the non-woven outer layer 13 on the filter bag 3 intercepts large particles of paint mist to prevent the fiber layer from clogging. The polypropylene meltblown oil-absorbing cotton 14 intercepts paint mist through diffusion effect and inertial collision. The surface friction generates electrostatic adsorption of small particles. The polyester fiber on the two-component intermediate layer 15 intercepts dust particles. The meltblown fiber adsorbs water mist through capillary action. The non-woven inner layer 16 guides the water mist to settle along the trapezoidal filter bag to prevent secondary pollution. The positioning air duct 8 optimizes the airflow uniformity of the filter bag 3 cavity. When the mixed gas enters the filter bag 3, the oil mist is intercepted by the adsorption layer, and the water mist settles to the bottom of the filter bag 3 and is discharged. When the filter bag 3 needs to be replaced, pull the pull plate 11 to drive the pin 12 to disengage from the insertion hole 6 on the slider 5 on the side of the inner support frame 2, thereby releasing the fixation between the outer frame 1 and the inner support frame 2. The inner support frame 2 and the filter bag 3 can be slid off from the outer frame 1, and the inner support frame 2 on another filter bag 3 can be inserted into the outer frame 1. The spring force of the spring 10 drives the pin 12 to be inserted into the insertion hole 6 to fix the outer frame 1 and the inner support frame 2, so that the filter bag 3 can be used to absorb oil mist. Through innovative composite filter material structure and trapezoidal heat sealing process, efficient separation of oil mist and water mist is achieved, breaking through the technical bottlenecks of short life and high pressure difference of traditional filters. Its technical indicators meet national standards and have significant economic and environmental benefits. It can be widely used in industrial scenarios such as automobile manufacturing and painting workshops, promoting the technological upgrade of air purification equipment, extending the filter bag replacement cycle from 3 months to 5 to 6 months, reducing the average annual consumable cost by more than 40%, and stabilizing the operating pressure difference in the range of 80-150Pa, ensuring the continuous operation of the air conditioning system.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A paint mist removal bag filter, characterized in that: Includes an outer frame (1), on which an inner support frame (2) is movably fitted, and a filter bag (3) is fixedly connected to the end of the inner support frame (2). The filter bag (3) is made by a trapezoidal heat sealing process of filter cotton (17). Multiple positioning air channels (8) are provided inside the filter bag (3). Two sliding grooves (4) are provided on the inner wall of the outer frame (1). Slider (5) is provided on both sides of the inner support frame (2). The slider (5) is movably fitted into the inner cavity of the sliding groove (4). An insertion hole (6) is provided on the slider (5). A fixing mechanism (7) is provided on the side of the outer frame (1). The filter cotton (17) is made of a non-woven outer layer (13), polypropylene meltblown oil-absorbing cotton (14), a two-component intermediate layer (15) and a non-woven inner layer (16), wherein the two-component intermediate layer (15) is composed of polyester fiber and meltblown fiber.

2. The paint mist removal bag filter according to claim 1, characterized in that: The fixing mechanism (7) includes a telescopic cylinder (9) fixedly connected to the outside of the outer frame (1) and a spring (10) fixedly connected to the outside of the outer frame (1). The spring (10) is located in the inner cavity of the telescopic cylinder (9). A pull plate (11) is fixedly connected to the end of the spring (10). A pin (12) is fixedly connected to the inner side of the pull plate (11). The end of the pin (12) is movably sleeved into the inner cavity of the insertion hole (6).

3. A paint mist removal bag filter according to claim 1, characterized in that: The outer frame (1) is provided with a plurality of mounting seats (18) on its outer side, and the mounting seats (18) are provided with mounting holes (19).

4. A paint mist removal bag filter according to claim 1, characterized in that: The inner wall of the groove (4) and the outer side of the slider (5) are in contact with each other, and the outer side of the inner support frame (2) and the inner side of the outer frame (1) are in contact with each other.

5. A paint mist removal bag filter according to claim 2, characterized in that: The inner diameter of the socket (6) is equal to the outer diameter of the pin (12).

Images