A waterborne paint overspray collection device

Abstract

This invention relates to the field of coating construction material recycling technology, specifically disclosing a water-based paint mist collection device, comprising: a collection box with an air inlet on the front and an air outlet on the rear; and four paint-diffusing plates, each wavy, positioned inside the collection box, with the crest of each plate near the air inlet and the trough near the air outlet. A paint-collecting felt plate is fixed inside the collection box by a wire basket and bolts. The felt plate collects paint mist and purifies the air. The paint mist is collected in the paint-collecting plate and felt plate, and subsequently, through desorption technology, the paint material is desorbed and transferred into a paint container for secondary processing, restoring the paint's function and becoming a secondary paint product.

Description

Technical Field

[0001] This invention relates to the field of coating construction material recycling technology, specifically a water-based paint mist collection device. Background Technology

[0002] Automotive painting requires high paint quality. Water-based paint mist needs to be controlled and diffused through a laminar flow ventilation system to ensure the cleanliness of the spraying environment. Because water-based paints are environmentally friendly, low in toxicity, and easy to clean, their paint mist is also indirectly utilized or requires special treatment in specific scenarios. Water-based paint mist collection is a key link in controlling environmental pollution and protecting workers' health during spraying operations.

[0003] However, existing paint mist collection devices are often cardboard maze structures. Paint mist is absorbed into the cardboard box through the maze structure and paint mist felt, and is then incinerated as hazardous waste, with no recycling value. Furthermore, the cardboard maze structure is prone to clogging due to paint mist after long-term use, leading to a decrease in ventilation efficiency and requiring frequent replacement, which increases the operating cost and waste disposal pressure. Therefore, we propose a water-based paint mist collection device. Summary of the Invention

[0004] The purpose of this invention is to provide a water-based paint mist collection device to solve the problems mentioned in the background art, which are often paper box labyrinth structures. Paint mist is absorbed into the paper box through the labyrinth structure and paint mist felt, and is incinerated as hazardous waste with no recycling value. Furthermore, the paper box labyrinth structure is prone to clogging by paint mist after long-term use, resulting in decreased ventilation efficiency and the need for frequent replacement, which increases the cost of use and the pressure of waste disposal.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a water-based paint mist collection device, comprising: a collection box, an air inlet provided on the front side of the collection box, and an air outlet provided on the rear side of the collection box; Also includes: There are four paint sprue boards, all of which are wavy. The four paint sprue boards are placed inside the collection box. The crest (highest point) of each paint sprue board is close to the air inlet of the collection box, and the trough (lowest point) is close to the air outlet of the collection box. Ventilation slots are located at the crests of the paint-stripping board. The paint collection board consists of four sets, each corresponding to one of the four paint drain boards. Each set includes multiple paint collection boards located at the troughs of the paint drain board. The sets are connected to each other by a paint collection frame to collect paint mist from the troughs of the paint drain board. Paint accumulation felt board, which is installed at the air outlet of the collection box.

[0006] The air inlet of the collection box is fixedly connected to two sides with buffer strips, which are arc-shaped.

[0007] Among them, taking the paint-straining plate closest to the air inlet of the collection box as the benchmark, the number of peaks and troughs of the two paint-straining plates arranged towards the air outlet of the collection box increases by two in turn, and the number of peaks and troughs of the paint-straining plate farthest from the air inlet of the collection box is the same as that of the paint-straining plate closest to it.

[0008] The troughs of the paint-slotting board are provided with multiple paint-slotting grooves at equal intervals, and the length of the paint-slotting grooves is greater than the width.

[0009] The ventilation slots are arranged in multiple sets, with each set corresponding to the crest of each paint-stripping board. Each set of ventilation slots has two slots, which are symmetrically distributed about the paint-stripping board and connected to the paint-stripping slots on its sides.

[0010] Among them, the outermost outer walls of the four paint collection frames are fixedly connected to multiple sets of locking plates, and the shape of the locking plates matches the shape of the paint leakage plate at the corresponding installation location and is locked to them. The rear sides of both ends of the paint collection frames are locked to mounting plates, and the mounting plates are fixedly connected to the collection box.

[0011] Among them, a scraper is fixedly connected to the bottom front side of the paint collection frame. The inner wall of the scraper is in contact with the outer wall of the paint-straining board. The outer wall of the scraper is inclined. A first pressure plate is fixedly connected to the bottom of the scraper. A second pressure plate is provided at the bottom of the first pressure plate. The second pressure plate is fixedly connected to the paint-straining board.

[0012] The collection box has a slidable mesh basket at its air outlet, a paint accumulation felt board inside the mesh basket, and the paint accumulation felt board is bonded to the mesh basket. The left and right ends of the mesh basket are detachably connected to the collection box by bolts.

[0013] The collection box has a lid that snaps onto the top. The lid has movable grooves on both sides of its outer wall. Both ends of the movable grooves have levers. The external dimensions of the levers match the internal dimensions of the movable grooves. The lower surfaces of the two levers are fixedly connected to positioning plates. The positioning plates are slidably connected to the lid. The other end of the positioning plates extends to the outside of the lid. The inner wall of the collection box has a positioning opening that matches the size of the positioning plates.

[0014] The positioning plate is equipped with a return spring on both sides. One end of the return spring is fixedly connected to the box cover, and the other end is fixedly connected to the positioning plate. The end of the positioning plate extends into the positioning port.

[0015] This invention has at least the following beneficial effects: The air supply system draws air containing a large amount of paint mist droplets into the collection box through the air inlet. The four paint-diffusing plates, with their progressively increasing peaks and troughs, effectively prevent short-circuiting during airflow, ensuring that each plate fully intercepts and collects paint mist. This significantly improves paint mist collection efficiency and facilitates a spiral upward airflow path within the collection box, extending the air's residence time. When air containing paint mist droplets flows through the paint-diffusing plates, the droplets collide with the peaks and troughs due to inertia, making them easier to collect. Meanwhile, the paint mist is trapped by the paint-collecting felt plate, and finally, clean air is expelled.

[0016] The paint collection felt board is fixed inside the collection box with bolts according to the net basket. The paint collection felt board collects paint mist and purifies the air. The paint mist is collected in the paint collection board and the paint collection felt board. Later, through desorption technology, the paint material is desorbed and put into the paint container for secondary processing of the paint, restoring the function of the paint and becoming a secondary paint product. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of the collection box of the present invention; Figure 2 This is a schematic diagram of the internal structure of the collection box of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the box lid of the present invention; Figure 4 This is a schematic diagram of the box lid structure of the present invention; Figure 5 This is a schematic diagram of the planar structure of the collection box of the present invention; Figure 6 This is a schematic diagram of the connection structure between the paint-straining plate and the paint-collecting frame of the present invention; Figure 7 This is an exploded view of the paint collection frame and mounting plate of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the paint-straining plate of the present invention; Figure 9 This is a side view of the paint collection frame structure of the present invention; Figure 10 This is a schematic diagram of the paint-collecting felt board structure of the present invention; Figure 11 This is a schematic diagram of the rear structure of the collection box of the present invention.

[0018] In the diagram: 001, collection box; 002, paint slurry board; 003, ventilation slot; 004, paint accumulation board; 005, paint accumulation felt board; 110. Buffer strip; 120. Wire basket; 130. Box lid; 140. Movable groove; 150. Pulley; 160. Positioning plate; 170. Positioning port; 180. Return spring; 210. Paint leakage tank; 410. Paint collection frame; 420. Clamping plate; 430. Mounting plate; 440. Scraper; 450. First pressure plate; 460. Second pressure plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 11 As shown, a water-based paint mist collection device includes: a collection box 001, an air inlet is provided on the front side of the collection box 001, and an air outlet is provided on the rear side of the collection box 001. Also includes: Paint sprue 002, there are four paint sprue 002. The paint sprue 002 is a double-layer hollow structure with a wave shape. All four paint sprue 002 are set inside the collection box 001. The crest (highest point of protrusion) of each paint sprue 002 is close to the air inlet of the collection box 001, and the trough (lowest point of depression) is close to the air outlet of the collection box 001. Ventilation slot 003 is located at the crest of the first layer of the paint-stripping plate 002 near the air outlet. The paint collection plate 004 is provided in four sets, and the four sets of paint collection plates 004 correspond to four paint leakage plates 002 respectively. Each set of paint collection plates 004 includes multiple paint collection plates 004 set at the trough of the paint leakage plate 002. Each set of paint collection plates 004 is connected to each other through a paint collection frame 410, which is used to collect paint mist at the trough of the paint leakage plate 002. Paint accumulation felt board 005 is installed at the air outlet of collection box 001.

[0021] like Figure 5As shown, taking the paint-straining plate 002 closest to the air inlet of the collection box 001 as a reference, the number of peaks and troughs of the two paint-straining plates 002 arranged towards the air outlet of the collection box 001 increases by two in turn. The paint-straining plate 002 farthest from the air inlet of the collection box 001 has the same number of peaks and troughs as the paint-straining plate 002 closest to it. That is, the paint-straining plate 002 closest to the air inlet of the collection box 001 is named the first paint-straining plate 002, and so on, namely the second paint-straining plate 002, the third paint-straining plate 002, and the fourth paint-straining plate 002. The number of peaks and troughs of the second and third paint-straining plates 002 increases by two in turn, and the number of peaks and troughs of the fourth paint-straining plate 002 is the same as that of the third paint-straining plate 002.

[0022] like Figures 5 to 8 As shown, buffer strips 110 are fixedly connected to both sides of the air inlet of the collection box 001. The buffer strips 110 are arc-shaped.

[0023] Multiple paint-slotting grooves 210 are evenly spaced at the troughs of the paint-slotting board 002. The length of the paint-slotting groove 210 is greater than its width, and the overall shape is a long strip.

[0024] Multiple sets of ventilation slots 003 are provided. Each set of ventilation slots 003 corresponds to the crest of each paint stencil 002 and is located at the crest of the layer of paint stencil 002 near the air outlet. There are two ventilation slots 003 in each set. The two ventilation slots 003 are symmetrically distributed about the paint stencil 002, and the ventilation slots 003 are connected to the paint stencil 210 on their side. Airflow enters from the paint stencil 210 and flows from the internal space of the double-layer structure of the paint stencil 002 to the ventilation slots 003, forming a complete airflow path.

[0025] Among them, the arc-shaped buffer strip 110 is attached to the two inner corners of the collection box 001 near the air inlet, which can prevent paint mist particles from getting stuck in the dead corners of the collection box 001; Specifically, with the air supply system of the spray booth, air containing a large amount of paint mist droplets enters the collection box 001 through the air inlet. It first comes into contact with the first row of paint-diffusing plates 002. Except for a small amount of paint mist adhering to the surface of the paint-diffusing plate 002, most of it adheres to the surface of the paint-diffusing plate 002 and flows to the trough, that is, through the paint-diffusing groove 210 to the position of the paint-accumulating plate 004. When the air carrying paint mist flows into the space between the paint-accumulating plate 004 and the paint-diffusing plate 002, because the density of paint mist particles is much higher than that of air and it is sticky, the paint mist sinks and adheres to the bottom of the paint-accumulating plate 004. The air and a small amount of paint mist continue to flow along the space between the double-layer structure of the paint-diffusing plate 002, and then flow out from the ventilation groove 003 and enter the space where the next paint-diffusing plate 002 is set.

[0026] Through the ventilation slot 003, the air carrying the unseparated fine paint mist moves to the next row of paint-diffusing plates 002. The third and fourth rows of paint-diffusing plates 002 follow the same pattern. After being filtered by the four rows of paint-diffusing plates 002, the air becomes clean. The remaining trace amounts of paint mist particles are trapped by the paint-accumulating felt plate 005 when passing through it, and clean air is expelled.

[0027] Meanwhile, since the paint mist first contacts the crest, and the crest is not open in the direction of the air inlet of the collection box 001, it serves as the capturing surface for the inertial collision of the paint mist. After the paint mist impacts, it can flow smoothly along the plate surface to the trough. The trough is provided with a through-flowing paint leakage groove 210. This structure design of crest capture and trough guidance greatly increases the contact area and collision probability between the paint mist and the capturing surface, effectively improving the interception efficiency of the paint mist. At the same time, the wave-shaped structure can also play a certain guiding and buffering role for the airflow entering the collection box 001, reducing the airflow speed and preventing the uncaptured paint mist particles from being carried away due to excessive airflow speed, ensuring that the paint mist has enough time to contact the capturing surface and be captured.

[0028] Furthermore, the long groove design of the 210 paint leakage tank can reduce the drying and clogging of the perforated groove from the source, with extremely low wind resistance, perfectly adapting to the normal low air pressure in the paint spraying workshop, and preventing paint mist from escaping. The structure of the double-layer paint stencil 002 allows the airflow to form a uniform flow field inside the paint stencil 002, so that the paint mist at the peaks and troughs can flow along the paint stencil 210 to the ventilation slot 003 and flow uniformly to the next paint collection area, without accumulating and drying at the slot opening. The airflow is uniform, reducing blockage at the source and effectively improving the versatility and practicality of the device.

[0029] In addition, both the paint-slotting plate 002 and the paint-collecting frame 410 are made of corrosion-resistant PE material and have undergone special surface treatment to reduce paint mist adhesion, making daily cleaning and maintenance easier and extending the service life of the device.

[0030] like Figures 1 to 7 and Figure 9 As shown, multiple sets of locking plates 420 are fixedly connected to the outermost outer walls of the four paint collection frames 410. The positions of the multiple sets of locking plates 420 correspond to the positions of the paint collection plates 004, and the shape of the locking plates 420 matches the shape of the paint leakage plates 002 at the corresponding installation locations and is locked to them. Mounting plates 430 are locked to the rear sides of both ends of the paint collection frames 410, and the mounting plates 430 are fixedly connected to the collection box 001.

[0031] A scraper 440 is fixedly connected to the front bottom of the paint collection frame 410. The inner wall of the scraper 440 is in contact with the outer wall of the paint-slotting board 002. The outer wall of the scraper 440 is inclined. A first pressure plate 450 is fixedly connected to the bottom of the scraper 440. A second pressure plate 460 is provided at the bottom of the first pressure plate 450. The second pressure plate 460 is fixedly connected to the paint-slotting board 002.

[0032] Specifically, the locking plate 420, through its own shape and positioning with the paint collection frame 410, can be fitted and installed on the paint leakage plate 002 in a relatively close manner. The mounting plate 430 limits and fixes the locking plate 420 and the paint collection frame 410 from both rear ends of the paint collection frame 410, ensuring that the paint collection frame 410 and the locking plate 420 remain stable during the operation of the device.

[0033] When it is necessary to clean the paint collection frame 410 and the paint drain plate 002 or replace the paint collection plate 004, simply release the locking restriction of the mounting plate 430 on the paint collection frame 410, and the paint collection frame 410 and the paint drain plate 002 can be easily removed from the collection box 001 together with the locking plate 420. The operation is convenient and efficient. Furthermore, the scraper 440 can be used in combination with the paint collection frame 410 to form an encirclement around the paint drain frame. The inclined outer wall design of the scraper 440 allows for preliminary scraping of the surface of the paint drain plate 002 when the paint collection frame 410 and the paint drain plate 002 are separated. The scraped particles fall directly onto the first pressure plate 450, making it easy to remove and clean them later. This reduces paint mist residue on the surface of the paint drain plate 002 and improves the cleaning efficiency of the paint drain plate 002 in subsequent cleaning processes.

[0034] With the cooperation of the first pressure plate 450 and the second pressure plate 460, the stability of the paint-straining plate 002 and the paint-accumulating plate 004 can be further enhanced. When the paint-accumulating frame 410 carries the paint-accumulating plate 004 into the collection box 001, the first pressure plate 450 simultaneously presses down the second pressure plate 460 of the paint-straining plate 002, which also facilitates fixing the paint-straining plate 002 inside the collection box 001. The tight fit between the two forms a double sealing structure, which effectively prevents paint mist from escaping from the gap between the paint-straining plate 002 and the paint-accumulating plate 004, and at the same time prevents the paint-straining plate 002 from shaking due to wind pressure inside the collection box 001, thus ensuring the overall structural stability of the device.

[0035] like Figures 1 to 5 and Figures 10 to 11 As shown, a mesh basket 120 is slidably connected to the air outlet of the collection box 001. A paint accumulation felt board 005 is located inside the mesh basket 120 and is bonded to the mesh basket 120. The left and right ends of the mesh basket 120 are detachably connected to the collection box 001 by bolts.

[0036] The top of the collection box 001 is fitted with a lid 130. The outer walls of the lid 130 are provided with movable grooves 140 on both sides. Both ends of the movable grooves 140 are provided with levers 150. The external dimensions of the levers 150 match the internal dimensions of the movable grooves 140. The lower surfaces of the two levers 150 are fixedly connected with positioning plates 160. The positioning plates 160 are slidably connected to the lid 130. The other end of the positioning plates 160 extends to the outside of the lid 130. The inner wall of the collection box 001 is provided with a positioning opening 170 that matches the size of the positioning plates 160.

[0037] Both sides of the positioning plate 160 are provided with a return spring 180. One end of the return spring 180 is fixedly connected to the cover 130, and the other end is fixedly connected to the positioning plate 160. The end of the positioning plate 160 extends into the positioning port 170.

[0038] Specifically, the paint collection felt board 005, together with the mesh basket 120, is fixed inside the collection box 001 by bolts. The paint collection felt board 005 collects paint mist and purifies the air. The paint mist is collected in the paint collection board 004 and the paint collection felt board 005. Later, through desorption technology, the paint material is desorbed and put into the paint container for secondary processing of the paint, restoring the function of the paint and becoming a secondary paint product.

[0039] Specifically, when it is necessary to replace the paint accumulation felt board 005, the worker can use two fingers to pinch the two levers 150 in a movable groove 140, apply force with the two fingers to make the two levers 150 slide in the movable groove 140 and move closer to each other. The levers 150 drive the positioning plate 160 at the rear end to slide inward against the elastic force of the return spring 180 towards the inside of the box cover 130, so that the other end of the positioning plate 160 exits from the positioning port 170 on the inner wall of the collection box 001, releasing the positioning of the box cover 130. Then, lift the box cover 130 upward to remove it from the top of the collection box 001. Next, unscrew the bolts connecting the left and right ends of the mesh basket 120 to the collection box 001, and pull the mesh basket 120 out of the collection box 001. Due to the accumulated paint... The felt plate 005 is attached to the basket 120 with Velcro. At this time, the used paint-accumulating felt plate 005 can be directly peeled off from the basket 120 and replaced with a new paint-accumulating felt plate 005. After the replacement is completed, the basket 120 with the new paint-accumulating felt plate 005 is slid back into the air outlet of the collection box 001 and the left and right ends of the basket 120 are fixed with bolts. Then, the box cover 130 is closed on the top of the collection box 001, the lever 150 is released, and the positioning plate 160 slides outward under the elastic force of the return spring 180 and is reinserted into the positioning hole 170 on the inner wall of the collection box 001, completing the locking and fixing of the box cover 130. The whole replacement process is convenient and efficient, further reducing the difficulty and time cost of maintenance operations.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-based paint mist collection device, comprising: Collection box (001), with an air inlet on the front and an air outlet on the rear; Its characteristic is that it also includes: Paint sprue (002), four paint sprue (002) are provided. The paint sprue (002) is a wavy double-layer hollow structure. All four paint sprue (002) are set inside the collection box (001). The crest of each paint sprue (002) is close to the air inlet of the collection box (001), and the trough is close to the air outlet of the collection box (001). Ventilation slot (003) is located at the crest of the first layer of the paint stencil (002) near the air outlet. Paint collection board (004), there are four sets of paint collection board (004), the four sets of paint collection board (004) correspond to four paint leakage board (002) respectively, each set of paint collection board (004) includes multiple paint collection boards (004) set at the trough of the paint leakage board (002), and each set of paint collection board (004) is connected to each other through paint collection frame (410) to collect paint mist at the trough of the paint leakage board 002; Paint accumulation felt board (005) is installed at the air outlet of the collection box (001).

2. The water-based paint mist collection device according to claim 1, characterized in that: Both sides of the air inlet of the collection box (001) are fixedly connected with buffer strips (110), which are arc-shaped.

3. The water-based paint mist collection device according to claim 1, characterized in that: Taking the paint-straining plate (002) closest to the air inlet of the collection box (001) as a reference, the number of peaks and troughs of the two paint-straining plates (002) arranged towards the air outlet of the collection box (001) increases by two in turn. The number of peaks and troughs of the paint-straining plate (002) farthest from the air inlet of the collection box (001) is the same as that of the paint-straining plate (002) closest to it.

4. The water-based paint mist collection device according to claim 1, characterized in that: The troughs of the paint sprue (002) are provided with multiple paint sprue grooves (210) at equal intervals, and the length of the paint sprue grooves (210) is greater than the width.

5. The water-based paint mist collection device according to claim 4, characterized in that: There are multiple sets of ventilation slots (003). Each set of ventilation slots (003) corresponds to the crest of each paint-stripping plate (002). There are two ventilation slots (003) in each set. The two ventilation slots (003) are symmetrically distributed about the paint-stripping plate (002) and the ventilation slots (003) are connected to the paint-stripping slots (210) on their sides.

6. The water-based paint mist collection device according to claim 1, characterized in that: The outermost outer walls of the four paint collection frames (410) are fixedly connected to multiple sets of snap-fit ​​plates (420), and the shape of the snap-fit ​​plates (420) matches the shape of the corresponding paint leakage plate (002) at the installation location and snaps into it. The rear sides of both ends of the paint collection frame (410) are snapped into the mounting plates (430), and the mounting plates (430) are fixedly connected to the collection box (001).

7. The water-based paint mist collection device according to claim 6, characterized in that: A scraper (440) is fixedly connected to the front side of the bottom end of the paint collection frame (410). The inner wall of the scraper (440) is in contact with the outer wall of the paint-slotting board (002). The outer wall of the scraper (440) is inclined. A first pressure plate (450) is fixedly connected to the bottom end of the scraper (440). A second pressure plate (460) is provided at the bottom end of the first pressure plate (450). The second pressure plate (460) is fixedly connected to the paint-slotting board (002).

8. The water-based paint mist collection device according to claim 1, characterized in that: A mesh basket (120) is slidably connected to the air outlet of the collection box (001). A paint accumulation felt board (005) is located inside the mesh basket (120). The paint accumulation felt board (005) is bonded to the mesh basket (120). The left and right ends of the mesh basket (120) are detachably connected to the collection box (001) by bolts.

9. The water-based paint mist collection device according to claim 1, characterized in that: The top of the collection box (001) is fitted with a lid (130). Movable grooves (140) are provided on both sides of the outer wall of the lid (130). Both ends of the movable groove (140) are provided with levers (150). The external dimensions of the levers (150) match the internal dimensions of the movable groove (140). The lower surfaces of the two levers (150) are fixedly connected with positioning plates (160). The positioning plates (160) are slidably connected to the lid (130). The other end of the positioning plates (160) extends to the outside of the lid (130). The inner wall of the collection box (001) is provided with a positioning opening (170) that matches the size of the positioning plates (160).

10. The water-based paint mist collection device according to claim 9, characterized in that: Both sides of the positioning plate (160) are provided with a reset spring (180). One end of the reset spring (180) is fixedly connected to the box cover (130), and the other end is fixedly connected to the positioning plate (160). The end of the positioning plate (160) extends into the positioning port (170).

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