Paint mist recycling and filtering module

Abstract

The utility model discloses a paint mist recycling and filtering module. The paint mist recycling and filtering module comprises a box body, a glass fiber felt guide plate, a polyester filter cotton meandering plate, a glass fiber tube bundle and an adsorption layer, an air inlet is formed below the rear side surface of the box body; an air outlet is formed in the top surface of the box body; the glass fiber felt guide plate, the polyester filter cotton meandering plate and the glass fiber tube bundle are fixed in the box body and are sequentially arranged from bottom to top; the glass fiber felt guide plate is obliquely arranged and corresponds to the air inlet; the polyester filter cotton meandering plates are U-shaped and are arranged in multiple layers up and down, and U-shaped openings of every two adjacent layers of polyester filter cotton meandering plates are oppositely and crosswise arranged so as to form an airflow return channel; a plurality of layers of glass fiber tube bundles are arranged up and down, and adjacent layers of glass fiber tube bundles are arranged crosswise; the adsorption layer is detachably connected to the air outlet of the box body and used for adsorbing volatile substances or residual paint mist. And the U-shaped polyester filter cotton meandering plate and the glass fiber felt guide plate are matched for use, so that the device is suitable for paint mist collection work of large-air-volume airflow.

Description

Technical Field

[0001] This utility model relates to the field of molten salt tank equipment, and in particular to a paint mist recovery and filtration module. Background Technology

[0002] The large amount of paint mist generated during automotive painting needs to be collected and treated. However, the paint mist generated during the application of color paint and topcoat has different characteristics, therefore, different collection and treatment methods are required. Topcoat is mainly composed of polyurethane or polyester materials and solvents, and is a viscous liquid at room temperature. When topcoat paint mist forms, it mainly exists in the form of liquid droplets with high viscosity. If filter materials are used alone for collection, the pores of the filter material will be quickly clogged, forming a stacked, impermeable state, which will cause the filter material to fail in a short period of time.

[0003] In the prior art, there is a Chinese utility model patent with application number 202322342104.8, application date August 30, 2023, entitled "A Paint Mist Filtering and Collection Module for Automotive Painting." It includes a housing, a fiberglass felt guide plate, a polyester filter cotton meandering plate, a fiberglass tube bundle, and fiberglass felt. An air inlet is located at the lower rear of the housing, and an air outlet is located at the top of the housing. The fiberglass felt guide plate, polyester filter cotton meandering plate, and fiberglass tube bundle are all fixed inside the housing and arranged sequentially from bottom to top, forming three paint mist collection zones. The fiberglass felt guide plate includes a first fiberglass felt guide plate and a second fiberglass felt guide plate. When dealing with large volumes of paint mist, the second fiberglass felt guide plate is close to the air inlet, limiting the space for trapping the paint mist. This causes most of the paint mist to flow into the polyester filter cotton meandering plate, resulting in a significant increase in the adsorption pressure of the polyester filter cotton meandering plate.

[0004] Therefore, a paint mist recovery filter module is needed that is suitable for large volumes of paint mist. Utility Model Content

[0005] The purpose of this invention is to provide a paint mist recovery and filtration module suitable for large volumes of paint mist.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A paint mist recovery filter module includes a housing, a fiberglass felt baffle, a polyester filter cotton baffle, a fiberglass tube bundle, and an adsorption layer.

[0008] An air inlet is provided on the lower rear side of the housing, and an air outlet is provided on the top surface of the housing;

[0009] The fiberglass felt guide plate, the polyester filter cotton flow plate, and the fiberglass tube bundle are all fixed inside the box and arranged sequentially from bottom to top.

[0010] The fiberglass felt guide plate is inclined and corresponds to the air inlet, and the distance between the top end of the fiberglass felt guide plate and the air inlet is greater than the distance between its bottom end and the air inlet.

[0011] The polyester filter cotton folding plate is U-shaped and has multiple layers arranged vertically. The U-shaped openings of the polyester filter cotton folding plates of adjacent layers are arranged in opposite directions to form an airflow reversal channel.

[0012] The fiberglass tube bundle is arranged in multiple layers, with adjacent layers of fiberglass tube bundles arranged in a cross pattern.

[0013] The adsorption layer is detachably connected to the air outlet of the box to adsorb volatile substances or residual paint mist.

[0014] Furthermore, the adsorption layer includes activated carbon disposed in two layers of paint mist felt.

[0015] Furthermore, each layer of the paint mist felt is fixed to an electric welding wire mesh.

[0016] Furthermore, positioning hole plates are fixedly installed on the left and right sides of the box body, and the positioning hole plates are respectively provided with positioning holes that correspond to the shapes of the fiberglass felt guide plate, the polyester filter cotton meandering plate, and the fiberglass tube bundle.

[0017] Furthermore, a wooden support frame is provided inside the box, and the positioning hole plate is fixedly installed on the wooden support frame.

[0018] Furthermore, U-shaped support strips are added to both ends of the polyester filter cotton meander plate.

[0019] Furthermore, the polyester filter cotton swirl plate includes a skeleton made of welded wire mesh, and the skeleton is covered with polyester filter cotton.

[0020] In the above technical solution, the present invention has the following beneficial effects:

[0021] A fiberglass felt baffle is installed at the air inlet. The advantages of using a baffle are obvious: higher adsorption and interception efficiency, more space for collecting paint sludge, and efficient interception of large-volume paint mist particles entering the air inlet. After interception, the paint sludge falls directly into the housing without affecting the airflow channel. Its function is that in the initial stage of use, gas containing paint mist passes through the fiberglass felt on the baffle, where liquid droplets are collected using a filtration and interception mechanism. Once the fiberglass felt has collected a certain amount of paint, the pores become blocked, creating an impermeable state. The airflow changes direction here, and the principle of inertia continues to collect paint mist. This design employs a dual mechanism of filtration and inertial collection to maximize paint mist collection.

[0022] In addition, a multi-layered, cross-arranged U-shaped polyester filter cotton meandering plate is installed in the middle of the housing. This U-shape prevents the meandering plate from deforming under wind force. The U-shaped meandering plate also features strong wind pressure resistance, better surface adhesion, and a buffering effect on airflow eddies. Compared to the existing 90-degree V-shaped meandering plate, the U-shaped polyester filter cotton meandering plate is more effective for collecting paint mist from large airflow volumes. When the paint-containing gas flows obliquely through the meandering plate from the fiberglass felt guide plate at the air inlet, the cross-arranged meandering plate forms a non-direct flow channel. The airflow changes direction and turns back here. Compared to gas molecules, paint mist molecules are heavier, and due to their greater inertia, they easily collide with the meandering plate during the reversal flow. Due to their high viscosity, they adhere to the meandering plate, thus achieving the purpose of collecting and blocking the paint mist. This is the main area for paint mist collection, collecting approximately 70-80% of the total paint mist. Therefore, compared with the existing technology, this utility model is more suitable for large air volume of paint mist entering through the air inlet, and has stronger wind resistance and collection capabilities. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the external structure of the paint mist recovery and filtration module disclosed in this utility model.

[0025] Figure 2 This is an exploded structural diagram of the paint mist recovery and filtration module disclosed in this utility model;

[0026] Figure 3 This is a schematic diagram of the internal structure of the paint mist recovery and filtration module disclosed in this utility model.

[0027] Figure label:

[0028] 1. Box body, 2. Fiberglass felt guide plate, 3. Polyester filter cotton meandering plate, 4. Fiberglass tube bundle, 5. Adsorption layer, 6. Positioning hole plate. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] It should be noted that the terms "above," "one end," "up," etc. used in this document indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Similar expressions are only for illustrative purposes 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "part," "two parts," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] like Figure 1-3 The paint mist recovery filter module shown includes a housing 1, a fiberglass felt baffle 2, a polyester filter cotton baffle 3, a fiberglass tube bundle 4, and an adsorption layer 5.

[0032] An air inlet 11 is provided on the lower rear side of the housing 1, and an air outlet is provided on the top surface of the housing 1. The fiberglass felt baffle 2, the polyester filter cotton baffle 3, and the fiberglass tube bundle 4 are all fixed inside the housing 1 and arranged sequentially from bottom to top.

[0033] The fiberglass felt guide plate 2 is inclined and corresponds to the air inlet 11. The distance between the top of the fiberglass felt guide plate 2 and the air inlet 11 is greater than the distance between its bottom and the air inlet 11. The front side of the fiberglass felt guide plate 2, which is close to the housing 1 and away from the air inlet 11, is inclined towards the top surface of the housing 1. A fiberglass felt guide plate 2 is provided at the air inlet. It can be made by covering a whole sheet of fiberglass felt with 30x30mm welded wire mesh and fixing it with a wooden frame around it. The advantages of using a single fiberglass felt guide plate are obvious: higher adsorption and interception efficiency, more space for collecting paint sludge, and efficient interception of large-volume paint mist particles entering from the air inlet. After interception, the paint sludge falls directly into the housing or into the sealed bottom compartment below the housing, without affecting the airflow channel. Its function is that in the initial stage of use, the gas containing paint mist will pass through the fiberglass felt on the fiberglass felt guide plate and collect the liquid mist droplets using a filtration and interception mechanism. When the fiberglass felt collects a certain amount of topcoat, it will become impermeable due to the blockage of pores. The airflow will change direction here and continue to collect paint mist using the principle of inertia. This design adopts a dual mechanism of filtration and interception and inertial collection, with the aim of maximizing the collection of paint mist.

[0034] The polyester filter cotton meandering plate 3 is U-shaped and has multiple layers, at least two layers. The U-shaped openings of adjacent layers of polyester filter cotton meandering plates 3 are arranged in a crisscross pattern to form an airflow reversal channel.

[0035] The central part of the housing features multiple layers of U-shaped, opposing, crisscrossing polyester filter cotton meandering plates. These plates are constructed with a welded wire mesh framework and covered with 5mm thick polyester filter cotton. U-shaped support strips are added to both ends of the polyester filter cotton meandering plates to prevent deformation under wind pressure. The polyester filter cotton meandering plates are characterized by strong wind pressure resistance, better surface adhesion, and the formation of vortices in the airflow channel, providing a buffering effect. Compared to existing 90-degree V-shaped meandering plates, the polyester filter cotton meandering plates are more effectively suited for collecting paint mist from high-volume airflows.

[0036] When the paint-containing gas flows obliquely through the polyester filter cotton meandering plate from the fiberglass felt guide plate at the air inlet, the cross-arranged polyester filter cotton meandering plate forms a non-direct flow channel, causing the airflow to change direction and turn back. Compared to gas molecules, paint mist has a higher molecular weight and greater specific gravity. During the reversal flow, its greater inertia makes it easily collide with the meandering plate, and its high viscosity causes it to adhere to the polyester filter cotton meandering plate, thus achieving the purpose of collecting and blocking the paint mist. This is the main area for paint mist collection, collecting approximately 70-80% of the total paint mist.

[0037] Preferably, U-shaped support strips are added to both ends of the polyester filter cotton meander plate 3. This serves to resist wind and stabilize the structure.

[0038] Preferably, the polyester filter cotton swirl plate 3 includes a skeleton made of welded wire mesh, and the skeleton is covered with polyester filter cotton.

[0039] The fiberglass tube bundle 4 is arranged in multiple layers, with adjacent layers of fiberglass tube bundle 4 arranged in a cross pattern, and there are at least two layers.

[0040] After passing through the meandering channel formed by the polyester filter cotton baffle, the fiberglass tube bundle collection area is located near the air outlet. Here, fiberglass tube bundles are densely arranged in a crisscross pattern. The outer surface of the fiberglass tube bundles can be made of welded wire mesh with a wire diameter of 1.0mm and an aperture of 30x30mm, and the interior is filled with high-density fiberglass felt strips.

[0041] After the paint mist has been collected by the fiberglass felt guide plate 2 and the polyester filter cotton meandering plate 3, the paint content in the airflow reaching this point is already relatively low. Because the fiberglass tube bundles are arranged in a crisscross pattern, there is no direct channel for the paint mist, which will be filtered and intercepted by the fiberglass material. Since the paint mist content is low when it reaches the fiberglass tube bundle area, the amount of paint mist collected by the fiberglass will not reach the point of clogging failure. Instead, the pressure difference will reach a preset value due to the excessive collection volume in the preceding area, causing the entire system to fail. Therefore, the product maintains its filtration efficiency until it fails.

[0042] The adsorption layer 5 is detachably connected to the air outlet of the box 1 to adsorb volatile substances or residual paint mist.

[0043] Specifically, adsorption layer 5 includes activated carbon disposed within two layers of paint mist felt. Each layer of paint mist felt is fixed to a welded wire mesh. Following the fiberglass tube bundle collection area is the activated carbon adsorption area, which can be constructed by covering a 5mm thick activated carbon paint mist felt with 30×30 welded wire mesh (0.6mm diameter on both sides) covering the middle layer. Activated carbon possesses unique adsorption properties, further adsorbing volatile substances and residual paint mist in the paint mist to ensure a reduction in harmful volatile substances in the passing gas.

[0044] Preferably, positioning plates 6 are fixedly installed on the left and right sides of the housing 1, and the positioning plates 6 are provided with positioning holes that correspond to the shapes of the fiberglass felt guide plate 2, the polyester filter cotton meandering plate 3, and the fiberglass tube bundle 4. The positioning holes serve to position and prevent the positions of the fiberglass felt guide plate 2, the polyester filter cotton meandering plate 3, and the fiberglass tube bundle 4 from changing.

[0045] During installation, a wooden support frame is installed inside the housing 1, and the positioning plate 6 is fixedly installed on the wooden support frame. The fiberglass felt baffle 2, the polyester filter cotton meandering plate 3, and the fiberglass tube bundle 4 are fixed by two symmetrically distributed whole positioning plates. Considering the convenience of installation, the positioning plates need to be fixed to the wooden support frame on the air inlet side in advance before the internal accessories are installed. The outer housing is fixed after the internal accessories are installed.

[0046] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A paint mist recovery and filtration module, characterized in that, It includes a housing (1), a fiberglass felt baffle (2), a polyester filter cotton baffle (3), a fiberglass tube bundle (4), and an adsorption layer (5); An air inlet (11) is provided on the lower rear side of the box (1), and an air outlet is provided on the top surface of the box (1). The fiberglass felt guide plate (2), the polyester filter cotton meander plate (3) and the fiberglass tube bundle (4) are all fixed inside the box (1) and arranged sequentially from bottom to top; The fiberglass felt guide plate (2) is inclined and corresponds to the air inlet (11). The distance between the top end of the fiberglass felt guide plate (2) and the air inlet (11) is greater than the distance between its bottom end and the air inlet (11). The polyester filter cotton folding plate (3) is U-shaped and has multiple layers. The U-shaped openings of the adjacent two layers of polyester filter cotton folding plates (3) are arranged in opposite directions to form an airflow reversal channel. The fiberglass tube bundle (4) is arranged in multiple layers, with adjacent layers of fiberglass tube bundles (4) arranged in a cross pattern; The adsorption layer (5) is detachably connected to the air outlet of the box (1) to adsorb volatile substances or residual paint mist.

2. The paint mist recovery filter module according to claim 1, characterized in that, The adsorption layer (5) includes activated carbon disposed in two layers of paint mist felt.

3. The paint mist recovery filter module according to claim 2, characterized in that, Each layer of the paint mist felt is fixed to an electric welding wire mesh.

4. The paint mist recovery filter module according to claim 1, characterized in that, Positioning plate (6) is fixedly installed on the left and right sides of the box (1). Positioning plate (6) is provided with positioning holes that correspond to the shapes of fiberglass felt guide plate (2), polyester filter cotton flow plate (3), and fiberglass tube bundle (4).

5. A paint mist recovery filter module according to claim 4, characterized in that, The box body (1) is provided with a wooden support frame, and the positioning hole plate (6) is fixedly installed on the wooden support frame.

6. The paint mist recovery filter module according to claim 1, characterized in that, U-shaped support strips are added to both ends of the polyester filter cotton curved plate (3).

7. A paint mist recovery filter module according to claim 1, characterized in that, The polyester filter cotton swirl plate (3) includes a skeleton made of welded wire mesh, and the skeleton is covered with polyester filter cotton.

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