Waste gas purification device of coating machine

Abstract

The utility model discloses a waste gas purification device of a coating machine, which relates to the technical field of coating machines and comprises a purification cylinder. The air inlet pipe is installed at the upper end of the purification cylinder, the end, making contact with the purification cylinder, of the air inlet pipe extends to the middle layer in the purification cylinder, an air outlet pipe is arranged in the purification cylinder and located at the bottom of the air inlet pipe, and the air outlet pipe and the air inlet pipe are fixedly connected through a connecting pipeline; and a filter element is installed in the connecting pipeline, a clamping groove is formed in the outer surface of the purification cylinder, when the filter screen needs to be cleaned, a clamping plate, a connecting frame and the connecting pipeline are pulled out from the interior of the purification cylinder, and then the filter screen can be cleaned and replaced, so that the efficiency is improved, and the blockage condition is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coating machine technology, specifically to a coating machine exhaust gas purification device. Background Technology

[0002] A coating machine is a highly efficient, energy-saving, safe, and clean electromechanical integrated device, mainly used for surface coating of solid products such as tablets, pills, and candies. The coating machine mainly consists of a coating pan, a hot air blower, an exhaust fan, and a spray system. During operation, the coating machine will produce substances such as ethanol and isopropanol, which are used to dissolve the coating material. After volatilization, these substances become the main components of the exhaust gas. Suspended particles such as powder and granular fragments generated during the coating process may pollute the air.

[0003] For example, the announcement number CN210159355U is named "Exhaust Gas Purification Device". This device includes an exhaust gas purification device and an air inlet. The side wall of the exhaust gas purification device is connected to the air inlet, and the inner side wall of the exhaust gas purification device is provided with a sliding groove. When the exhaust gas enters from the air inlet, it drives the fan blades to move under the action of the airflow, causing the activated carbon column to rotate. Under the action of the rotation of the activated carbon column, the exhaust gas is mixed more evenly, and the activated carbon column also filters the exhaust gas better.

[0004] Since the exhaust gas undergoes preliminary filtration through a filter screen, but this preliminary filtration typically removes larger particulate impurities, prolonged filtration of these impurities can cause the filter screen surface to become clogged. Furthermore, the aforementioned devices do not allow for easy removal of the filter screen for cleaning and disassembly. Therefore, we have proposed an exhaust gas purification device for coating machines to address the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a coating machine exhaust gas purification device to solve the problem mentioned in the background art that the exhaust gas undergoes preliminary filtration through a filter screen, but the preliminary filtration generally removes larger particulate impurities. Long-term filtration of larger particulate impurities will cause the filter screen surface to become clogged, and the above-mentioned device is not convenient to remove the filter screen for cleaning and disassembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coating machine exhaust gas purification device, including a purification cylinder;

[0007] Also includes:

[0008] An air inlet pipe is installed at the upper end of the purification cylinder, with one end of the air inlet pipe contacting the purification cylinder extending into the inner middle layer of the purification cylinder. An air outlet pipe is provided inside the purification cylinder, and the air outlet pipe is located at the bottom of the air inlet pipe. The air outlet pipe and the air inlet pipe are connected and fixed by a connecting pipe. A filter element is installed inside the connecting pipe. A locking groove is provided on the outer surface of the purification cylinder. A connecting frame is provided on the side of the connecting pipe near the locking groove. A locking plate is provided at the other end of the connecting frame, and the locking plate is movably locked into the inner surface of the locking groove. A handle is installed on the outer side of the locking plate. An exhaust pipe is installed on the upper outer layer of the purification cylinder.

[0009] Preferably, a cross plate is installed on the outside of the air outlet pipe and the cross plate is fixed inside the purification cylinder. Several evenly distributed nozzles are provided at the bottom of the cross plate. One end of the cross plate is connected to a water inlet pipe, which is connected to a through groove inside the cross plate and the through groove is connected to the nozzles.

[0010] Preferably, a fixing frame is installed on the upper inner layer of the purification cylinder. The fixing frame is installed on the outer surface of the air inlet pipe. The fixing frame has two layers, and the activated carbon is located between the two fixing frames.

[0011] Preferably, a sealing plate is installed on the upper inner layer of the purification cylinder, and the sealing plate is located above the fixed frame. Fan units are evenly distributed on the surface of the sealing plate, and the fan units are connected to the upper and lower sides of the sealing plate.

[0012] Preferably, a drain pipe is installed on one side of the bottom of the purification cylinder, and a liquid drain pipe is provided on the other side of the bottom of the purification cylinder. The liquid drain pipe is located above the drain pipe, and valves are provided on the outside of both the liquid drain pipe and the drain pipe.

[0013] Preferably, a first fan is installed inside the end of the air inlet pipe away from the purification cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) Connect one end of the air inlet pipe to the coating machine. Install the first fan at the connection between the air inlet pipe and the coating machine to accelerate the discharge of exhaust gas inside the coating machine. The other end of the air inlet pipe extends to the inner middle layer of the purification cylinder. Install a connecting pipe between the air inlet pipe and the air outlet pipe. Set a filter screen in the middle of the connecting pipe. When the exhaust gas is transported from the air inlet pipe to the air outlet pipe, the exhaust gas passes through the filter screen to intercept large particles of impurities. Set a connecting frame and a locking plate on one side of the connecting pipe. The locking plate is movably locked inside the locking groove. When the filter screen needs to be cleaned, pull the locking plate together with the connecting frame and the connecting pipe out from the inside of the purification cylinder to clean and replace the filter screen, thereby improving efficiency and reducing the occurrence of blockage.

[0016] (2) By setting a cross plate inside the purification cylinder and a nozzle at the bottom of the cross plate, and connecting the water tank to the outside through the water inlet pipe, water or cleaning liquid can be sprayed out from the nozzle. The exhaust gas enters from the air inlet pipe, passes through the filter screen and is discharged through the bottom of the air outlet pipe. The liquid sprayed from the nozzle comes into contact with the exhaust gas to neutralize the acidic gas and remove some organic matter, causing impurities to sink to the bottom of the purification cylinder. After the water containing impurities is left to stand for a period of time, the impurities will sink to the bottom. At this time, the impurities and water can be separated and extracted through the sewage pipe and the liquid drain pipe. The exhaust gas continues to move upward and is adsorbed by the activated carbon inside the fixed frame to purify the exhaust gas. Finally, the exhaust gas is accelerated by the fan unit and discharged from the exhaust pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a first-view schematic diagram of the internal cross-section of the purification cylinder of this utility model;

[0019] Figure 3 This is a second-view schematic diagram of the internal cross-section of the purification cylinder of this utility model;

[0020] Figure 4 This is a schematic diagram of the connecting pipe of this utility model;

[0021] In the diagram: 1. Purification cylinder; 2. Air inlet pipe; 3. First fan; 4. Air outlet pipe; 5. Connecting pipe; 6. Connecting frame; 7. Locking groove; 8. Locking plate; 9. Handle; 10. Filter element; 11. Sewage pipe; 12. Liquid drain pipe; 13. Water inlet pipe; 14. Cross plate; 15. Nozzle; 16. Fixing frame; 17. Exhaust pipe; 18. Sealing plate; 19. Fan unit. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] This utility model provides a waste gas purification device for coating machines, which includes a purification cylinder 1. The main problem this utility model solves is that while waste gas undergoes preliminary filtration through a filter screen, this preliminary filtration typically removes larger particulate impurities. Prolonged filtration of these larger particles can lead to clogging of the filter screen, and the aforementioned devices make it inconvenient to remove the filter screen for cleaning and disassembly.

[0024] For the device provided by this utility model, please refer to Figure 1-4 The following is a detailed introduction.

[0025] The air inlet pipe 2 is installed at the upper end of the purification cylinder 1, and the end of the air inlet pipe 2 that contacts the purification cylinder 1 extends into the middle layer of the purification cylinder 1. The first fan 3 is installed inside the end of the air inlet pipe 2 away from the purification cylinder 1 to accelerate the extraction of exhaust gas inside the coating machine. An air outlet pipe 4 is provided inside the purification cylinder 1, and the air outlet pipe 4 is located at the bottom of the air inlet pipe 2. The air outlet pipe 4 and the air inlet pipe 2 are connected and fixed by a connecting pipe 5. A filter element 10 is installed inside the connecting pipe 5. A locking groove 7 is provided on the outer surface of the purification cylinder 1. A connecting frame 6 is provided on the side of the connecting pipe 5 near the locking groove 7. A locking plate 8 is provided on the other end of the connecting frame 6, and the locking plate 8 is movably locked into the inner surface of the locking groove 7. A handle 9 is installed on the outer side of the locking plate 8. An exhaust pipe 17 is installed on the upper outer layer of the purification cylinder 1.

[0026] Please see Figure 2-3 To further explain, a cross plate 14 is installed on the outside of the air outlet pipe 4, and the cross plate 14 is fixed inside the purification cylinder 1. Several evenly distributed nozzles 15 are provided at the bottom of the cross plate 14. One end of the cross plate 14 is connected to a water inlet pipe 13, which connects to a through groove inside the cross plate 14 and is connected to the nozzles 15. A fixing frame 16 is installed on the upper inner layer of the purification cylinder 1. The fixing frame 16 is installed on the outer surface of the air inlet pipe 2. The fixing frame 16 has two layers, and activated carbon... Located between two fixed frames 16, a sealing plate 18 is installed on the upper part of the interior of the purification cylinder 1, and the sealing plate 18 is located above the fixed frame 16. Fan units 19 are evenly distributed on the surface of the sealing plate 18, and the fan units 19 connect the upper and lower sides of the sealing plate 18. A sewage pipe 11 is installed on one side of the bottom of the interior of the purification cylinder 1, and a liquid drain pipe 12 is provided on the other side of the bottom of the interior of the purification cylinder 1. The liquid drain pipe 12 is located above the sewage pipe 11, and valves are provided on the outside of both the liquid drain pipe 12 and the sewage pipe 11.

[0027] 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 coating machine exhaust gas purification device, including a purification cylinder (1); Its features are: Also includes: An air inlet pipe (2) is installed at the upper end of the purification cylinder (1), and the end of the air inlet pipe (2) that contacts the purification cylinder (1) extends to the inner middle layer of the purification cylinder (1). An air outlet pipe (4) is provided inside the purification cylinder (1), and the air outlet pipe (4) is located at the bottom of the air inlet pipe (2). The air outlet pipe (4) and the air inlet pipe (2) are connected and fixed by a connecting pipe (5). A filter element (10) is installed inside the connecting pipe (5). A locking groove (7) is provided on the outer surface of the purification cylinder (1). A connecting frame (6) is provided on the side of the connecting pipe (5) near the locking groove (7). A locking plate (8) is provided at the other end of the connecting frame (6), and the locking plate (8) is movably locked into the inner surface of the locking groove (7). A handle (9) is installed on the outer side of the locking plate (8). An exhaust pipe (17) is installed on the upper outer layer of the purification cylinder (1).

2. The coating machine exhaust gas purification device according to claim 1, characterized in that: A cross plate (14) is installed on the outside of the air outlet pipe (4), and the cross plate (14) is fixed inside the purification cylinder (1). Several evenly distributed nozzles (15) are provided at the bottom of the cross plate (14). One end of the cross plate (14) is connected to a water inlet pipe (13). The water inlet pipe (13) is connected to the through groove inside the cross plate (14), and the through groove is connected to the nozzles (15).

3. The coating machine exhaust gas purification device according to claim 1, characterized in that: The upper inner layer of the purification cylinder (1) is equipped with a fixing frame (16), which is installed on the outer surface of the air inlet pipe (2). The fixing frame (16) has two layers, and the activated carbon is located between the two layers of fixing frames (16).

4. The coating machine exhaust gas purification device according to claim 1, characterized in that: The upper part of the purification cylinder (1) is equipped with a sealing plate (18), and the sealing plate (18) is located above the fixed frame (16). The surface of the sealing plate (18) is evenly distributed with fan units (19), and the fan units (19) are connected to the upper and lower sides of the sealing plate (18).

5. The coating machine exhaust gas purification device according to claim 1, characterized in that: A drain pipe (11) is installed on one side of the bottom of the purification cylinder (1), and a drain pipe (12) is provided on the other side of the bottom of the purification cylinder (1). The drain pipe (12) is located above the drain pipe (11), and valves are provided on the outside of both the drain pipe (12) and the drain pipe (11).

6. The coating machine exhaust gas purification device according to claim 1, characterized in that: The first fan (3) is installed inside the end of the air inlet pipe (2) away from the purification cylinder (1).

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