Roller type coating machine

Abstract

The utility model discloses a roller type coater, relates to SCR plate type denitration catalyst production technical field, including frame, drive cabin, transmission shaft cabin and coating cabin, coating cabin internal upper part is symmetrically provided with lower coating roller and upper coating roller, and coating cabin two side wall are provided with adjusting groove correspondingly, the both ends of lower coating roller are rotatingly connected with locating seat, and the locating seat is rotatingly connected with the transmission shaft cabin. Adjusting seats are rotatably connected to the two ends of the upper coating roller, top seats are installed at the positions, corresponding to the tops of the two adjusting grooves, of the upper end of the coating bin, and adjusting screw rods extending to the inner sides of the adjusting grooves are connected to the middles of the two top seats in a penetrating mode. According to the coating device, the two rollers are arranged, the distance between the two rollers can be accurately adjusted, so that the thickness of the coating can be accurately controlled, the uniformity of the coating is ensured, the cleaning assembly is applied, the coating roller can be cleaned after coating is finished, the cleanliness of the surface of the coating roller is improved, and the coating quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of SCR plate denitrification catalyst production technology, and in particular to a roller coating machine. Background Technology

[0002] SCR (Selective Catalytic Reduction) plate-type denitrification catalysts are a key technology for reducing nitrogen oxides (NOx) in industrial flue gas. Roller coating machines are one of the devices used to produce such catalysts. They are mainly used to uniformly coat the active material of the catalyst onto the surface of a substrate material (usually a honeycomb ceramic plate or a metal plate). These catalyst materials can be metal oxides such as vanadium, molybdenum, titanium, and aluminum, or other active ingredients. These active materials will react with NOx gas to generate harmless nitrogen and water vapor.

[0003] Existing coating machines are prone to uneven coating or inconsistent thickness during the coating process on the substrate surface, which affects the production quality of plate catalysts. Therefore, this utility model provides a roller coating machine. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a roller coating machine that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a roller coating machine, including a frame, a drive chamber installed on one side of the upper end of the frame, and a coating chamber installed on the other side of the upper end of the frame, a transmission shaft chamber is provided between the drive chamber and the coating chamber, a lower coating roller and an upper coating roller are symmetrically arranged inside the coating chamber, and adjustment grooves are provided on both sides of the coating chamber corresponding to the lower coating roller and the upper coating roller;

[0006] Both ends of the lower coating roller are rotatably connected to positioning seats inside the adjustment groove. The positioning seats are located inside the adjustment groove and are fixedly connected to it. Both ends of the upper coating roller are rotatably connected to adjustment seats. The upper end of the coating chamber is equipped with a top seat corresponding to the top of the two adjustment grooves. The middle of the two top seats is connected to an adjustment screw extending into the inner side of the adjustment groove.

[0007] As a further technical solution of this utility model, the inner wall of the adjustment groove is symmetrically provided with slide rails, and the two sides of the adjustment seat are provided with slide grooves corresponding to the slide rails. The adjustment seat is slidably connected to the slide rails in the adjustment groove through the slide grooves on both sides.

[0008] As a further technical solution of this utility model, the adjusting screw and the top seat are threadedly connected, and the bottom ends of the two adjusting screws are respectively rotatably connected to the top center of the two adjusting seats.

[0009] As a further technical solution of this utility model, a drive motor is installed at the top of the drive chamber, and the output end of the drive motor is located inside the drive chamber and connected to a reducer. A drive shaft is provided inside the drive shaft chamber, and the output end of the reducer is fixed to one end of the lower coating roller through the drive shaft.

[0010] As a further technical solution of this utility model, a cleaning component is also provided inside the coating chamber, directly below the lower coating roller. The cleaning component includes a receiving box at the bottom of the coating chamber and fixed seats symmetrically installed on the inner wall of the coating chamber. The opposite surfaces of the two fixed seats are provided with grooves, and electric push rods are installed at the bottom of the grooves. The telescopic ends of the two electric push rods are connected to a fixed plate. A collection groove is installed on the side wall of the fixed plate, and a scraper corresponding to the outer surface of the lower coating roller is connected to the top of the collection groove.

[0011] As a further technical solution of this utility model, the inner bottom of the collection tank is inclined, and an opening is provided at the bottom of the inclined end. The two ends of the fixing plate are respectively located in the grooves of the two fixing seats and are slidably connected to them.

[0012] This utility model provides a roller coating machine, which has the following advantages compared with the prior art:

[0013] This design presents a roller coating machine that uses two rollers rotating in opposite directions to evenly coat the substrate surface with paint. It is not only easy to operate, but also allows for precise adjustment of the distance between the two rollers to accurately control the paint thickness, ensure coating uniformity, and avoid inconsistent catalyst activity. Furthermore, the application of a cleaning component allows for cleaning of the coating rollers after coating, improving the cleanliness of the roller surface and enhancing coating quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a roller coating machine;

[0015] Figure 2 This is a schematic diagram of the installation of the adjusting seat and adjusting screw in a roller coating machine;

[0016] Figure 3 This is a first structural view of a cleaning component in a roller coating machine;

[0017] Figure 4 This is a second structural view of a cleaning component in a roller coating machine.

[0018] In the diagram: 1. Frame; 2. Drive chamber; 3. Drive motor; 4. Transmission shaft chamber; 5. Coating chamber; 6. Lower coating roller; 7. Upper coating roller; 71. Adjusting seat; 72. Slide rail; 73. Top seat; 74. Adjusting screw; 75. Adjusting groove; 8. Cleaning assembly; 81. Receiving box; 82. Fixed seat; 83. Electric push rod; 84. Fixed plate; 85. Collection trough; 86. Scraper. Detailed Implementation

[0019] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution for a roller coating machine: A roller coating machine includes a frame 1, a drive chamber 2 installed on one side of the upper end of the frame 1, and a coating chamber 5 installed on the other side of the upper end of the frame 1. A transmission shaft chamber 4 is provided between the drive chamber 2 and the coating chamber 5. A drive motor 3 is installed at the top of the drive chamber 2, and the output end of the drive motor 3 is located inside the drive chamber 2 and connected to a reducer. A transmission shaft is provided inside the transmission shaft chamber 4. The output end of the reducer is fixed to one end of the lower coating roller 6 through the transmission shaft. During operation, the drive motor 3 works, driving the lower coating roller 6 through the transmission shaft. The lower coating roller 6 rotates, which facilitates the uniform coating of the catalyst active material onto the substrate surface for the production of SCR (Selective Catalytic Reduction) denitrification catalyst. The two-roller coating method allows the coating material to be uniformly coated onto the substrate surface by the relative rotation of the upper coating roller 7 and the lower coating roller 6. Generally, the substrate is a honeycomb ceramic plate or a metal plate. These substrates will serve as the catalyst carrier. The drive motor 3 and the reducer adopt a 4kW variable frequency speed control motor + K series reducer. The frame 1, drive chamber 2, transmission shaft chamber 4 and coating chamber 5 are welded together from 40mm thick steel plates, resulting in high structural strength.

[0021] A lower coating roller 6 and an upper coating roller 7 are symmetrically arranged on the upper part of the coating chamber 5. Adjustment grooves 75 are provided on both side walls of the coating chamber 5 corresponding to the lower coating roller 6 and the upper coating roller 7. Positioning seats are rotatably connected to both ends of the lower coating roller 6, which are located inside the adjustment grooves 75 and fixedly connected thereto. Adjustment seats 71 are rotatably connected to both ends of the upper coating roller 7. Slide rails 72 are symmetrically arranged on the inner wall of the adjustment grooves 75. The two sides of the adjustment seats 71 correspond to the slide rails 72. A groove is provided at rail 72. Adjusting seat 71 slides on rail 72 within adjusting groove 75 via the grooves on both sides. Top seats 73 are installed at the top of the two adjusting grooves 75, corresponding to the top of each top seat 75. Adjusting screws 74 extending into the inner side of the adjusting groove 75 are threaded through the middle of each top seat 73. The adjusting screws 74 are threaded to the top seats 73, and the bottom ends of the two adjusting screws 74 are rotatably connected to the top center of each adjusting seat 71. During the coating process, in order to precisely control the thickness of the coating, the distance between the upper coating roller 7 and the lower coating roller 6 can be adjusted. During adjustment, the top of each of the two adjusting screws 74 is equipped with an adjusting wheel. By rotating the adjusting wheel in the forward direction, the adjusting screw 74 is driven to rotate on the top seat 73. Utilizing the threaded connection between the adjusting screw 74 and the top seat 73, the adjusting screw 74 will drive the adjusting seat 71 to slide upward along the slide rail 72 on the inner wall of the adjusting groove 75, thereby driving the upper coating roller 7 to move upward and away from the lower coating roller 6, thereby increasing the distance between the two rollers and improving the coating thickness. Conversely, the adjusting wheel is rotated in the reverse direction, causing the upper coating roller 7 to move downward and closer to the lower coating roller 6, thereby reducing the distance between the two. In addition, both the upper coating roller 7 and the lower coating roller 6 are made of hollow steel rollers with a diameter of 235mm-240mm and a length of 700mm-800mm. The rollers have a hollow design, and one end can be connected to heat transfer oil. The temperature is adjustable from 0-200℃.

[0022] Inside the coating chamber 5, directly below the lower coating roller 6, is a cleaning assembly 8. The cleaning assembly 8 includes a receiving box 81 located at the bottom of the coating chamber 5 and symmetrically mounted mounting bases 82 on the inner wall of the coating chamber 5. Each mounting base 82 has a groove on its opposite surface, and an electric push rod 83 is mounted at the bottom of the groove. The telescopic ends of the two electric push rods 83 are connected to a mounting plate 84. A collection trough 85 is mounted on the side wall of the mounting plate 84. The bottom of the collection trough 85 is inclined, and an opening is formed at the bottom of the inclined end. A scraper 86 corresponding to the outer surface of the lower coating roller 6 is connected to the top of the collection trough 85. Both ends of the mounting plate 84 are located within the grooves of the two mounting bases 82 and are slidably connected to them. After coating is completed, two electric push rods 83 can be extended synchronously by synchronous control, thereby pushing the fixed plate 84 upward and driving the scraper 86 upward to adhere to the outer surface of the lower coating roller 6, thereby controlling the rotation of the lower coating roller 6, so that the scraper 86 can scrape off the coating on the surface of the lower coating roller 6. It should be noted that the outer side of the scraper 86 is arc-shaped, and the scraped coating will fall into the collection tank 85 through its outer arc surface, and then fall into the receiving box 81 below through the opening at the bottom of the collection tank 85. In addition, on the other side of the coating chamber 5, corresponding to the lower coating roller 7, a cleaning component 8 is also provided. Its structure and principle are the same as those of the lower coating roller 6 (not shown in the figure), which facilitates the cleaning of the upper coating roller 7.

[0023] The working principle of this utility model is as follows: During the coating operation, according to the requirements of producing SCR plate denitrification catalyst and the coating thickness, the distance between the upper coating roller 7 and the lower coating roller 6 is adjusted by adjusting and controlling the upper coating roller 7. After the adjustment is completed;

[0024] The SCR plate-type denitrification catalyst substrate is transported to the inlet of coating chamber 5 using a conveying mechanism (e.g., ...). Figure 1 As shown, the inlet and outlet correspond to each other, and correspond to the upper coating roller 7 and the lower coating roller 6. The substrate is fed between the upper coating roller 7 and the lower coating roller 6. The lower coating roller 6 is driven by the drive motor 3 through the transmission shaft. Therefore, when the substrate is transported between the two, the coating rollers rotating in opposite directions are used to evenly coat the substrate surface, thereby completing the coating operation. The way the coating is transported to the coating roller adopts the feeding method commonly used in existing roller coating machines, which will not be described in detail here.

[0025] After the coating is completed, the cleaning components can be used to clean the upper coating roller 7 and the lower coating roller 6 respectively to ensure the cleanliness of the surfaces of the upper coating roller 7 and the lower coating roller 6, and to ensure the quality of the next coating.

[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A roll coater comprising a frame (1), a driving cabin (2) is installed on one side of the upper end of the frame (1), and a coating cabin (5) is installed on the other side of the upper end of the frame (1), a transmission shaft cabin (4) is arranged between the driving cabin (2) and the coating cabin (5), characterized in that, The lower coating roller (6) and the upper coating roller (7) are symmetrically arranged above the inside of the coating bin (5), and the two side walls of the coating bin (5) are provided with adjusting grooves (75) corresponding to the lower coating roller (6) and the upper coating roller (7); The two ends of the lower coating roller (6) are rotatably connected with positioning seats inside the adjusting grooves (75), the positioning seats are located inside the adjusting grooves (75) and are fixedly connected with the adjusting grooves (75), the two ends of the upper coating roller (7) are rotatably connected with adjusting seats (71), and the top of the coating bin (5) is provided with top seats (73) corresponding to the top of the two adjusting grooves (75), and the middle portions of the two top seats (73) are connected with adjusting screws (74) extending to the inside of the adjusting grooves (75).

2. A roll coater according to claim 1, characterized in that The inner walls of the adjusting grooves (75) are symmetrically provided with sliding rails (72), the two side faces of the adjusting seats (71) are provided with sliding grooves corresponding to the sliding rails (72), and the adjusting seats (71) are slidably connected with the sliding rails (72) through the sliding grooves on the two sides in the adjusting grooves (75).

3. A roll coater according to claim 1, characterized in that The adjusting screws (74) are in threaded connection with the top seats (73), and the bottom ends of the two adjusting screws (74) are rotatably connected with the middle portions of the top ends of the two adjusting seats (71).

4. A roll coater according to claim 1, characterized in that The top end of the driving bin (2) is provided with a driving motor (3), the output end of the driving motor (3) is located inside the driving bin (2) and is connected with a speed reducer, the inside of the transmission shaft bin (4) is provided with a transmission shaft, and the output end of the speed reducer is fixedly connected with one end of the lower coating roller (6) through the transmission shaft.

5. A roll coater according to claim 1, wherein The inside of the coating bin (5) is also provided with a cleaning assembly (8) directly below the lower coating roller (6), the cleaning assembly (8) comprises a receiving box (81) arranged at the bottom end of the inside of the coating bin (5), and fixing seats (82) symmetrically arranged on the inner wall of the coating bin (5), recesses are arranged on the opposite faces of the two fixing seats (82), electric push rods (83) are arranged at the bottom end of the recesses, a fixed plate (84) is connected with the telescopic ends of the two electric push rods (83), a collecting groove (85) is arranged on the side wall of the fixed plate (84), and a scraper (86) corresponding to the outer surface of the lower coating roller (6) is arranged at the top end of the collecting groove (85).

6. A roll coater according to claim 5, characterized in that The inner bottom of the collecting groove (85) is inclined, an opening is arranged at the bottom of the inclined end, and the two ends of the fixed plate (84) are slidably connected with the recesses of the two fixing seats (82).

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