Water-based paint drying apparatus

Abstract

The utility model discloses a kind of water-based paint drying equipment, including, equipment main body, conveying belt and drying bin are respectively provided on the equipment main body, the drying bin is located above conveying belt, drying mechanism is provided in the inside of the drying bin, gas collection circulation mechanism for filtering circulation of waste gas at the import and export of drying bin is provided on the equipment main body, the gas collection circulation mechanism includes suction end, purification box one, fan and gas outlet end.The utility model passes through suction end and timely collection drying bin import and export fugitive waste gas, after multistage purification treatment of purification box one, box and other components, avoid waste gas direct emission to external working environment, reduce the influence to air quality, reduce the potential threat to operator health, and gas collection circulation mechanism will purified air be sent back to drying bin and recycle, reduce the heat energy loss in drying bin due to waste gas fugitive, reduce the operation cost of equipment, save energy.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically a water-based paint drying equipment. Background Technology

[0002] Water-based paint is a type of coating that uses water as a diluent and does not contain organic solvents. It is free of benzene, toluene, xylene, formaldehyde, free TDI, and toxic heavy metals. It is non-toxic, odorless, harmless to the human body, and does not pollute the environment. The paint film is full, crystal clear, and flexible. It is also water-resistant, wear-resistant, aging-resistant, yellowing-resistant, fast-drying, and easy to use. It can be used on various materials such as wood, metal, plastic, glass, and building surfaces. To accelerate the drying speed of water-based paint on boards, the boards need to be placed inside a drying equipment for drying treatment.

[0003] During the operation of existing tunnel drying equipment, when the workpiece is heated inside the drying tunnel, the solvents and co-solvents in the water-based paint on its surface will evaporate rapidly due to the high temperature, forming a large amount of organic waste gas. Since the tunnel inlet and outlet lack effective sealing, these volatile gases can easily escape from the equipment inlet and outlet to the external working environment, causing a decline in air quality and posing a potential threat to the health of operators. Furthermore, the escape of waste gas leads to the loss of heat energy inside the drying tunnel, reducing energy utilization efficiency and increasing operating costs. Utility Model Content

[0004] The purpose of this invention is to provide a water-based paint drying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A water-based paint drying device includes a main body, on which a conveyor belt and a drying chamber are respectively arranged. The drying chamber is located above the conveyor belt. A drying mechanism is arranged inside the drying chamber. The main body is provided with a gas collection and circulation mechanism for filtering and circulating the exhaust gas at the inlet and outlet of the drying chamber. The gas collection and circulation mechanism includes an intake end, a purification box, a fan, and an outlet end.

[0006] Preferably, the air intake end is located at the inlet and outlet of the drying chamber, and an air duct is provided on the air intake end, with one end of the air duct extending into the interior of the purification chamber.

[0007] Preferably, the top of the drying chamber is provided with multiple sets of purification boxes. The interior of each purification box is provided with a dehumidifying plate for absorbing moisture from the exhaust gas and an activated carbon filter plate for preliminary filtration of harmful substances in the air. The interior of each purification box is also provided with a diversion plate for evenly conveying the exhaust gas transported by the air duct to the dehumidifying plate. Multiple sets of air ducts are provided on the purification box.

[0008] Preferably, the top of the drying chamber is also provided with a box body, the interior of which is divided into a first chamber body and a second chamber body by a partition, and one end of the second air duct extends into the interior of the first chamber body. The interior of the first chamber body is provided with multiple sets of high-energy ultraviolet lamps.

[0009] Preferably, the interior of the second chamber is provided with a purification box 2 and multiple sets of fans, and the purification box 2 is connected to the interior of the first chamber. The interior of the purification box 2 is provided with multiple sets of activated carbon filter plates 2. The air inlet end of the fan extends into the interior of the purification box 2, and the air outlet end of the fan is connected to an air duct 3. One end of the air duct 3 is connected to the air inlet end of the air outlet end.

[0010] Preferably, the air outlet is located inside the drying chamber and on both sides of the drying mechanism, and the air outlet is provided with multiple sets of air outlets.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model collects the exhaust gas escaping from the inlet and outlet of the drying chamber in a timely manner through the suction end. After multi-stage purification treatment by components such as the purification box and the chamber body, the exhaust gas is prevented from being directly discharged into the external working environment, reducing the impact on air quality and the potential threat to the health of operators, thus demonstrating the environmental friendliness of the equipment. In addition, the air collection and circulation mechanism sends the purified air back into the drying chamber for recycling, reducing the heat loss in the drying chamber caused by the escape of exhaust gas, reducing the operating cost of the equipment, and saving energy. At the same time, the purified air returned from the outlet end is evenly distributed on both sides of the drying mechanism, which can fully contact the surface of the workpiece, assisting in the evaporation of moisture and helping to ensure the drying quality of the paint film on the surface of the workpiece. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a schematic diagram of the drying chamber structure of this utility model.

[0013] In the diagram: 1. Main body of the equipment; 2. Conveyor belt; 3. Drying chamber; 4. Drying mechanism; 5. Air intake end; 6. Purification box one; 7. Box body; 8. Air outlet end; 9. Air duct one; 10. Dehumidifying plate; 11. Activated carbon filter plate one; 12. Diverter plate; 13. Air duct two; 14. Chamber one; 15. Chamber two; 16. High-energy ultraviolet lamp; 17. Purification box two; 18. Fan; 19. Activated carbon filter plate two; 20. Air duct three; 21. Air outlet. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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.

[0017] Please see Figure 1-3A water-based paint drying device includes a main body 1, on which a conveyor belt 2 and a drying chamber 3 are respectively installed. The drying chamber 3 is located above the conveyor belt 2, and a drying mechanism 4 is installed inside the drying chamber 3. The main body 1 is equipped with a gas collection and circulation mechanism for filtering and circulating the exhaust gas at the inlet and outlet of the drying chamber 3. The gas collection and circulation mechanism includes an intake end 5, a purification box 6, a fan 18, and an outlet end 8. The main body 1 is the basic frame of the entire device, supporting the conveyor belt 2, the drying chamber 3, and various auxiliary mechanisms, providing overall support and structural fixation, ensuring the relative position stability of each component, and ensuring the structural stability of the device during operation. The conveyor belt 2 is responsible for transporting the workpiece, ensuring that the workpiece coated with water-based paint to be dried is smoothly and continuously fed into the drying chamber 3 for drying. The drying process involves drying the workpiece and then outputting it from the drying chamber 3 after drying, thus achieving automated continuous production. The drying chamber 3 forms a relatively enclosed drying space, providing a suitable environment for the drying of water-based paint and reducing the interference of external environmental factors (such as temperature, humidity, and airflow) on the drying process. At the same time, it centrally houses the drying mechanism 4 and the air outlet 8, ensuring that heat and treated air can efficiently act on the workpiece. The drying mechanism 4 is the core heating component of the equipment. By releasing heat, it increases the temperature inside the drying chamber 3, providing energy for the evaporation of moisture in the water-based paint and the curing of the paint film. It is the key to achieving the drying function. The air collection and circulation mechanism is responsible for collecting, purifying, treating, and recycling the exhaust gas at the inlet and outlet of the drying chamber 3. This not only reduces the pollution of the environment caused by direct exhaust gas emissions but also recovers and utilizes the heat in the air, reducing energy consumption.

[0018] Please see Figure 3 The suction end 5 is located at the inlet and outlet of the drying chamber 3. A duct 9 is installed on the suction end 5, and one end of the duct 9 extends into the interior of the purification box 6. The suction end 5 is located at the inlet and outlet of the drying chamber 3 to collect the exhaust gas overflowing from the inlet and outlet during the drying process, preventing the exhaust gas from being directly discharged into the external environment and causing pollution. The duct 9 is used to transport the exhaust gas collected by the suction end 5 to the purification box 6, serving as a bridge connecting the suction end 5 and the purification box 6, and realizing the directional transmission of exhaust gas.

[0019] Please see Figure 3The top of the drying chamber 3 is equipped with multiple sets of purification boxes 6. Inside each purification box 6 are dehumidifying plates 10 for absorbing moisture from the exhaust gas and activated carbon filter plates 11 for preliminary filtration of harmful substances in the air. The purification box 6 also contains a distribution plate 12 for evenly distributing the exhaust gas from the duct 9 to the dehumidifying plates 10. Multiple sets of ducts 13 are installed on the purification box 6. The purification box 6 serves as a container for preliminary treatment of the exhaust gas. The dehumidifying plates 10, activated carbon filter plates 11, and distribution plates 12 work together. The system completes the dehumidification and preliminary purification of the exhaust gas, laying the foundation for subsequent deep treatment. The dehumidification plate 10 adsorbs the moisture in the exhaust gas, reducing the humidity of the exhaust gas and preventing high humidity air from circulating back to the drying chamber 3 and affecting the drying efficiency of the water-based paint. The activated carbon filter plate 11 uses the adsorption properties of activated carbon to perform preliminary filtration of harmful substances in the exhaust gas and remove some pollutants. The diversion plate 12 evenly disperses the exhaust gas transported by the air duct 9 onto the dehumidification plate 10, avoiding uneven dehumidification and filtration caused by the concentrated impact of exhaust gas on a certain area, and improving the treatment efficiency of the purification box 6.

[0020] Please see Figure 3 The top of the drying chamber 3 is also equipped with a box 7. The interior of the box 7 is divided into a first chamber 14 and a second chamber 15 by a partition. One end of the second air duct 13 extends into the interior of the first chamber 14. The interior of the first chamber 14 is equipped with multiple sets of high-energy ultraviolet lamps 16. The box 7 is divided into the first chamber 14 and the second chamber 15 by the partition, providing a closed space for the deep treatment of waste gas. At the same time, it realizes the zoning of different purification processes and ensures that the treatment process is carried out in an orderly manner. The ultraviolet rays emitted by the high-energy ultraviolet lamps 16 can destroy the molecular structure of residual organic pollutants in the waste gas, decompose them into harmless substances, realize the deep purification of waste gas, and make up for the limitations of activated carbon adsorption. The second air duct 13 transports the waste gas that has been pre-treated by the first purification box 6 to the first chamber 14 of the box 7 to realize the further transmission of waste gas.

[0021] Please see Figure 3The interior of chamber 2 15 is equipped with a purification box 2 17 and multiple sets of fans 18. The purification box 2 17 is connected to the interior of chamber 1 14. The purification box 2 17 is equipped with multiple sets of activated carbon filter plates 2 19. The air inlet of the fans 18 extends into the interior of the purification box 2 17, and the air outlet of the fans 18 is connected to a duct 3 20. One end of the duct 3 20 is connected to the air inlet of the air outlet 8. The air outlet 8 is located inside the drying chamber 3 and on both sides of the drying mechanism 4. The air outlet 8 is equipped with multiple sets of air outlets 21. The purification box 2 17 and the activated carbon filter plates 2 19 further filter the air after ultraviolet decomposition, further adsorbing residual trace elements. To ensure the cleanliness of the air circulating back to the drying chamber 3, the fan 18 provides the power for air circulation. The purified air is drawn out from the purification box 17 by suction and then sent into the drying chamber 3 through the air duct 20 and the air outlet 8, forming a complete airflow circulation. The air outlet 8 and the air outlet 21 are used to evenly send the purified air back into the drying chamber 3 and distribute it on both sides of the drying mechanism 4, so that the dry clean air can fully contact the surface of the workpiece, assist in the evaporation of moisture, and at the same time maintain the airflow circulation in the drying chamber 3. The air duct 20 connects the air outlet of the fan 18 and the air inlet of the air outlet 8, and delivers the purified gas from the fan 18 to the air outlet 8.

[0022] Working principle: Workpieces coated with water-based paint are smoothly conveyed by conveyor belt 2 and sequentially enter the drying chamber 3 on the main body 1 of the equipment. The drying mechanism 4 inside the drying chamber 3 releases heat to increase the temperature inside the chamber, providing energy for the evaporation of water in the water-based paint and the curing of the paint film. During the drying process, the solvent and co-solvent in the water-based paint on the surface of the workpiece evaporate due to high temperature, forming organic waste gas. Some of the waste gas will escape from the inlet and outlet of the drying chamber 3. At this time, the suction end 5 set at the inlet and outlet of the drying chamber 3 will collect the escaped waste gas in time. The waste gas is transported to the purification box 6 through the air duct 9. The waste gas entering the purification box 6 is first evenly dispersed onto the dehumidification plate 10 by the diversion plate 12. The dehumidification plate 10 absorbs the moisture in the waste gas to reduce the humidity, and then passes through the activated carbon filter plate 11. The waste gas is initially filtered to remove harmful substances. After initial treatment, the waste gas enters the first chamber 14 of the box 7 through the second duct 13. Multiple sets of high-energy ultraviolet lamps 16 in the first chamber 14 emit ultraviolet rays to destroy the molecular structure of residual organic pollutants in the waste gas, decomposing them into harmless substances. The treated gas enters the purification box 17 in the second chamber 15 and is filtered again by the activated carbon filter plate 19 to further adsorb residual trace pollutants or decomposition products. Then, the fan 18 provides power to transport the purified air to the air outlet 8 through the third duct 20. The air outlet 8 sends the purified air back into the drying chamber 3 evenly through multiple sets of air outlets 21, and the air is distributed on both sides of the drying mechanism 4 to form a complete airflow circulation, which helps the drying of water-based paint on the surface of the workpiece.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A water-based paint drying device, comprising a main body (1), wherein a conveyor belt (2) and a drying chamber (3) are respectively arranged on the main body (1), the drying chamber (3) is located above the conveyor belt (2), and a drying mechanism (4) is arranged inside the drying chamber (3), characterized in that: The main body (1) of the equipment is provided with a gas collection and circulation mechanism for filtering and circulating the exhaust gas at the inlet and outlet of the drying chamber (3). The gas collection and circulation mechanism includes an intake end (5), a purification box (6), a fan (18), and an outlet end (8). The intake end (5) is located at the inlet and outlet of the drying chamber (3). A duct (9) is provided on the intake end (5), and one end of the duct (9) extends into the interior of the purification box (6). A box body (7) is also provided on the top of the drying chamber (3). The interior of the box body (7) is divided into a first chamber body (14) and a second chamber body (15) by a partition. One end of the duct (13) extends into the interior of the first chamber body (14). Multiple sets of high-energy ultraviolet lamps (16) are provided inside the first chamber body (14).

2. The water-based paint drying equipment according to claim 1, characterized in that: The top of the drying chamber (3) is provided with multiple sets of purification boxes (6). The interior of the purification box (6) is provided with a dehumidifying plate (10) for absorbing moisture from the exhaust gas and an activated carbon filter plate (11) for preliminary filtration of harmful substances in the air. The interior of the purification box (6) is also provided with a diversion plate (12) for evenly conveying the exhaust gas transported by the air duct (9) to the dehumidifying plate (10). Multiple sets of air ducts (13) are provided on the purification box (6).

3. The water-based paint drying equipment according to claim 2, characterized in that: The interior of the second chamber (15) is equipped with a second purification box (17) and multiple sets of fans (18). The second purification box (17) is connected to the interior of the first chamber (14). The interior of the second purification box (17) is equipped with multiple sets of activated carbon filter plates (19). The air inlet of the fan (18) extends into the interior of the second purification box (17). The air outlet of the fan (18) is connected to the third air duct (20). One end of the third air duct (20) is connected to the air inlet of the air outlet (8).

4. The water-based paint drying equipment according to claim 3, characterized in that: The air outlet (8) is located inside the drying chamber (3) and on both sides of the drying mechanism (4). Multiple air outlets (21) are provided on the air outlet (8).

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