Cleaning roller height adjusting device

Abstract

The utility model discloses a cleaning roller height adjusting device. Comprising a rack, a table top rotationally connected to the top end of the rack, a conveying mechanism arranged on the table top, at least one first cleaning roller rotationally connected to the table top, at least one second cleaning roller moving relative to the table top, a power mechanism driving the first cleaning roller and the second cleaning roller to rotate, and a moving mechanism driving the second cleaning roller to move. The conveying mechanism conveys the metal filter bag to the position between the first cleaning roller and the second cleaning roller, the first cleaning roller and the second cleaning roller are driven by the power mechanism to clean the surface of the metal filter bag, and at the moment, the conveying mechanism drives the metal filter bag to move in a reciprocating mode. Through rotation of the first cleaning roller and the second cleaning roller and reciprocating motion of the conveying mechanism, the surface of the metal filter bag can be comprehensively and efficiently cleaned. Compared with a traditional manual cleaning mode, time and labor cost are greatly saved, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of biomass boiler flue gas metal filter bag dust collectors, and in particular to a cleaning roller height adjustment device. Background Art

[0002] In the current field of energy utilization technology, biomass boilers, as devices that utilize biomass energy for heating or power generation, offer numerous advantages. Compared to traditional coal-fired boilers, biomass boilers offer higher fuel efficiency and lower carbon emissions. Biomass boilers typically consist of a combustion chamber, a heat exchange system, and a flue gas exhaust system. During combustion, the biomass fuel releases heat, which is transferred through the heat exchange system to a working fluid, such as hot water or steam.

[0003] However, biomass boilers also face challenges during operation. The flue gas ash they emit is extremely sticky. During conventional SCR denitrification processes, the flue gas dust easily forms agglomerates within the catalyst pores, causing the catalyst to malfunction and rapidly increasing the flue gas resistance. Currently, the optimal treatment method for biomass flue gas is essentially: high-temperature metal filter bags + SCR reactor + economizer + air preheater + fan + wet desulfurization system + chimney. However, due to the strong stickiness of biomass flue gas ash, it can sometimes form agglomerates on the surface of the metal filter bags. This necessitates removing the metal filter bags from the dust collector after shutdown and manually brushing and cleaning them. Each baghouse contains numerous filter bags, potentially hundreds or even thousands, making manual brushing and cleaning a very labor-intensive process. Summary of the Invention

[0004] The purpose of this application is to provide a cleaning roller height adjustment device to solve the problem of improving the cleaning efficiency of metal filter bags and adapting to metal filter bags of different sizes.

[0005] The present application provides a cleaning roller height adjustment device that adopts the following technical solution: it includes a frame, a table rotatably connected to the top of the frame, a transportation mechanism arranged on the table, at least one first cleaning roller rotatably connected to the table, at least one second cleaning roller that moves relative to the table, a power mechanism that drives the first cleaning roller and the second cleaning roller to rotate, and a moving mechanism that drives the second cleaning roller to move. The transportation mechanism transports the metal filter bag between the first cleaning roller and the second cleaning roller. The first cleaning roller and the second cleaning roller clean the surface of the metal filter bag under the drive of the power mechanism. At this time, the transportation mechanism drives the metal filter bag to move back and forth.

[0006] By adopting the above technical solution, the surface of the metal filter bag can be comprehensively and efficiently cleaned through the rotation of the first cleaning roller and the second cleaning roller and the reciprocating movement of the transport mechanism, thereby greatly improving the cleaning efficiency and reducing the intensity of manual labor; the distance between the first cleaning roller and the second cleaning roller is adjusted by the moving mechanism to adapt to metal filter bags of different sizes, thereby improving the versatility of the device; the transport mechanism realizes the automatic feeding and movement of the metal filter bag, thereby reducing manual operation and improving production efficiency.

[0007] Optionally, the moving mechanism includes a first rod rotatably connected to the table, a second rod rotatably connected to the first rod, a first screw rod assembly fixedly connected to the table, a first motor driving the moving end of the first screw rod assembly to move, and a pre-tightening assembly fixedly connected to the moving end of the first screw rod assembly, one end of the first rotating rod is coaxially connected to the first cleaning roller, and the other end is rotatably connected to the second cleaning roller, the end of the second rod is rotatably connected to the pre-tightening assembly, and the pre-tightening assembly applies a pre-tightening force to the end of the second rod, forcing the end of the second rod to move toward one end of the table.

[0008] By adopting this technical solution, when the first and second cleaning rollers are in close contact under the action of the pre-tightening assembly, they can exert a stronger clamping force on the metal filter bag. During the cleaning process, the friction between the first and second cleaning rollers and the metal filter bag is increased, thereby more effectively removing sticky dust and impurities from the metal filter bag's surface. For thinner metal filter bags, the pre-tightening assembly can appropriately reduce the clamping force to avoid excessive squeezing that could cause deformation or damage to the filter bag. For thicker metal filter bags, the pre-tightening assembly can increase the clamping force to ensure sufficient contact area and friction between the cleaning rollers and the filter bag, achieving an excellent cleaning effect.

[0009] Optionally, the pre-tightening assembly includes a mounting block fixedly connected to the movable end of the first screw rod assembly, a slide groove arranged on the mounting block, a slide rod fixedly connected to the inner wall of the slide groove, a movable block and an adjustment plate slidably connected to the slide rod, a spring arranged between the adjustment plate and the movable block, and a screw rotatably connected to the inner wall of the slide groove, the screw is threadedly connected to the adjustment plate, the screw passes through the movable block, one end of the screw passes through the mounting block, one end of the spring is fixedly connected to the adjustment plate, and the other end is fixedly connected to the movable block, the spring forces the movable block to move toward one end of the table top, and the spring is sleeved on the slide rod.

[0010] By adopting the above technical solution, when the preload force needs to be adjusted, it is achieved by rotating the screw. Since the screw is threadedly connected to the adjustment plate, rotating the screw will cause the adjustment plate to move along the slide rod. The movement of the adjustment plate will change the degree of compression of the spring, thereby adjusting the force applied by the spring to the moving block. The spring forces the moving block to move toward one end of the table, and the movement of the moving block is transmitted to the end of the second rod through the connecting structure, thereby adjusting the clamping force between the first cleaning roller and the second cleaning roller. When the moving end of the first screw assembly moves, the mounting block also moves, driving the entire preload assembly to move together. Under the action of the preload force, the end of the second rod is always subjected to a force toward the table, so that the first cleaning roller and the second cleaning roller can be in close contact, providing better conditions for cleaning the metal filter bag.

[0011] Optionally, the transport mechanism includes transport rollers and support rollers arranged at both ends of the table, a second motor for driving the transport rollers to rotate, a bracket fixedly connected to the table, and a sensor fixedly connected to the bracket. The bracket and support rollers are arranged between the transport rollers and the first cleaning roller. The sensor is used to sense whether the metal filter bag reaches the edge when moving, and to detect the cleanliness of the metal filter bag.

[0012] With this technical solution, the metal filter bag rests on a transport roller and a support roller, moving forward as the transport rollers rotate. The combination of these rollers ensures the bag moves smoothly across the tabletop, entering between the first and second cleaning rollers for cleaning. If the bag reaches the edge, a sensor sends a signal, which the control system uses to adjust the transport mechanism to prevent it from falling off the tabletop. The sensor also monitors the bag's cleanliness. By detecting surface characteristics such as color and gloss, the sensor determines whether the bag has been cleaned. When the sensor detects that the bag has reached a predetermined level of cleanliness, the control system stops the cleaning process and transports the bag for further processing.

[0013] Optionally, it also includes a tilting mechanism arranged on the frame and capable of adjusting the tilt angle of the table top, the bottom end of the table top is rotatably connected to the frame, and the tilting mechanism is arranged at the other end of the table top, and the tilting mechanism includes a second screw rod assembly fixedly connected to the frame, a third motor driving the moving end of the second screw rod assembly to move, and a third rod rotatably connected to the second screw rod assembly, the end of the third rod is coaxially connected to the first cleaning roller, and the end of the third rod is rotatably connected to the table top.

[0014] By adopting the above technical solution, when the tabletop's tilt angle needs to be adjusted, the third motor is activated, driving the movable end of the second screw assembly to move. Because the third rod is rotationally connected to the second screw assembly, the position of the third rod changes as the movable end of the second screw assembly moves. One end of the third rod is coaxially connected to the first cleaning roller and is rotationally connected to the tabletop. When the third rod's position changes, it drives the tabletop to rotate about its rotational connection point with the frame, thereby adjusting the tabletop's tilt angle. When cleaning plate dust, the dust will enter the metal filter bag, and tilting the metal filter bag can pour the dust out of the metal filter bag.

[0015] Optionally, the power mechanism includes a fourth motor fixedly connected to the third rod, and the fourth motor drives the first cleaning roller and the second cleaning roller to rotate through a belt drive / chain drive.

[0016] By adopting the above technical solution, since the end of the third rod is coaxially connected to the first cleaning roller, the fourth motor is arranged on the third rod. During the rotation of the third rod, the distance between the fourth motor and the third motor can be kept unchanged, preventing the chain and belt from changing in tightness. Similarly, the end of the first rotating rod is coaxially connected to the first cleaning roller, and the first cleaning roller and the second cleaning roller are driven by a belt / chain, so that when the position of the second cleaning roller changes, the tightness of the chain and belt is maintained.

[0017] Optionally, it further includes an ash hopper fixedly connected to the table top, the ash hopper is located below the first cleaning roller and the second cleaning roller, and a collection box is provided below the ash hopper.

[0018] By employing this technical solution, as the first and second cleaning rollers clean the metal filter bag, dust and impurities removed from the surface of the metal filter bag fall under the action of gravity. Because the ash hopper is located below the cleaning rollers, this dust and impurities fall into the ash hopper. The ash hopper collects dust, preventing it from flying around during the cleaning process and maintaining a clean working environment.

[0019] Optionally, the total number of the first cleaning rollers and the second cleaning rollers is no more than 3.

[0020] By adopting the above-mentioned technical solution, the main function of the cleaning rollers is to remove dust and impurities from the surface of the metal filter bags by contacting them. Within a certain range, an appropriate number of cleaning rollers can provide sufficient cleaning force and contact area to ensure effective cleaning of the metal filter bags. However, if there are too many cleaning rollers, the cleaning force may be too strong, which may damage the metal filter bags. At the same time, too many cleaning rollers may also cause excessive friction on the metal filter bags during the cleaning process, shortening their service life. If there are too many cleaning rollers, they may also increase the resistance of the metal filter bags during the cleaning process, affecting the normal operation of the transport mechanism and thus reducing cleaning efficiency. For example, too many cleaning rollers may cause the metal filter bags to jam during movement, resulting in incomplete cleaning or requiring longer cleaning times.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Through the rotation of the first cleaning roller and the second cleaning roller and the reciprocating movement of the transport mechanism, the surface of the metal filter bag can be cleaned comprehensively and efficiently. Compared with the traditional manual cleaning method, it greatly saves time and labor costs and improves cleaning efficiency;

[0023] 2. The moving mechanism can adjust the distance between the first and second cleaning rollers to accommodate metal filter bags of different sizes. Whether thin or thick metal filter bags, the pre-tightening component can adjust the clamping force to ensure sufficient contact area and friction between the cleaning rollers and the filter bag to achieve excellent cleaning results.

[0024] 3. The pre-tightening component can appropriately reduce the pressing force to avoid deformation or damage of the filter bag due to excessive squeezing. For thicker metal filter bags, increasing the pressing force can ensure the cleaning effect without causing unnecessary damage to the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0026] Figure 2 is a structural diagram of the moving mechanism in Example 1 of the present application;

[0027] Figure 3 This application Figure 2 A local enlarged view of point a in the middle;

[0028] Figure 4 This is a schematic diagram of the overall structure of the transportation mechanism in Example 1 of the present application;

[0029] Figure 5 This application Figure 2 A partial enlarged view of point b in the middle.

[0030] Explanation of the accompanying drawings: 1. Frame; 2. Table; 3. Transport mechanism; 31. Second motor; 32. Transport roller; 33. Support roller; 34. Bracket; 35. Sensor; 4. First cleaning roller; 5. Second cleaning roller; 6. Tilting mechanism; 61. Second screw assembly; 62. Third motor; 63. Third rod; 7. Moving mechanism; 71. Second rod; 72. First rod; 73. First motor; 74. Pre-tightening assembly; 741. Slide rod; 742. Moving block; 743. Adjustment plate; 744. Spring; 745. Screw; 746. Mounting block; 75. First screw assembly; 8. Ash hopper; 81. Collection box; 9. Power mechanism; 91. Fourth motor. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1 -Attached Figure 5 This application is described in further detail.

[0032] The embodiment of the present application discloses a cleaning roller height adjustment device.

[0033] Example 1, with reference to Figure 1 , a cleaning roller height adjustment device includes a frame 1, a table 2 rotatably connected to the top of the frame 1, a transport mechanism 3 set on the table 2, two first cleaning rollers 4 rotatably connected to the table 2, a second cleaning roller 5 that moves relative to the table 2, a power mechanism 9 for driving the first cleaning roller 4 and the second cleaning roller 5 to rotate, a tilting mechanism 6 set on the frame 1, a transport mechanism 3 for transporting a metal filter bag, and a moving mechanism 7 for driving the second cleaning roller 5 to move; the metal filter bag is first transported to between the first cleaning roller 4 and the second cleaning roller 5 by the transport mechanism 3, and under the drive of the moving mechanism 7, the first cleaning roller 4 and the second cleaning roller 5 clamp the metal filter bag. The power mechanism 9 drives the first cleaning roller 4 and the second cleaning roller 5 to rotate, and the first cleaning roller 4 and the second cleaning roller 5 clean the metal filter bag. During the cleaning process, the transport mechanism 3 drives the metal filter bag to move back and forth, so that the plate ash at different positions on the surface of the metal filter bag is removed; the frame 1 is fixedly connected to the ash hopper 8, and the ash hopper 8 is located below the first cleaning roller 4 and the second cleaning roller 5. A collection box 81 is provided below the ash hopper 8, and the removed plate ash falls into the ash hopper 8 and flows into the collection box 81 through the ash hopper 8; during the cleaning process of the metal filter bag, the tilting mechanism 6 will tilt the table 2, and the plate ash in the metal filter bag will be poured out from one end.

[0034] refer to Figure 2, the second cleaning roller 5 is located between the two first cleaning rollers 4, the distance between the axis of the second cleaning roller 5 and the table 2 is greater than the distance between the axis of the first cleaning roller 4 and the table 2, the first cleaning roller 4 and the second cleaning roller 5 are connected by a belt drive / chain drive, the moving mechanism 7 includes a first rod 72 rotatably connected to the table 2 and coaxially connected to the first cleaning roller 4, the first rod 72 is rotatably connected to the second cleaning roller 5, and the distance from the second cleaning roller 5 to the table 2 is adjusted by rotating the first rod 72 to adapt to metal filter bags of different sizes; the moving mechanism 7 also includes a second rod 71, a fixed connection A first screw rod assembly 75 connected to the frame 1, a first motor 73 driving the moving end of the first screw rod assembly 75 to move, and a pre-tightening assembly 74 fixedly connected to the moving end of the first screw rod assembly 75, one end of the second rod 71 is rotatably connected to the end of the first rod 72, and the other end is rotatably connected to the pre-tightening assembly 74, the first rod 72, the second rod 71, and the first screw rod assembly 75 constitute a connecting rod mechanism, and the movement of the moving end of the first screw rod assembly 75 is driven by the first motor 73, so that the second rod 71 can drive the first rod 72 to rotate, thereby adjusting the height of the second cleaning roller 5.

[0035] refer to Figure 3 The lock body 71 is fixedly mounted on the locking cam 742, and the lock body 71 is fixedly mounted on the locking cam 742, so that the lock body 71 can be locked. The tightening assembly applies a pre-tightening force to the end of the second rod 71 through the spring 744, forcing the second cleaning roller 5 to move toward one end of the table 2. This can form a stronger clamping force on the metal filter bag during the cleaning process, increase the friction between the cleaning roller and the metal filter bag, and thus more effectively remove sticky dust and impurities on the surface of the metal filter bag.

[0036] refer to Figure 4The transport mechanism 3 includes a transport roller 32 and a support roller 33 arranged at both ends of the table 2, a second motor 31 that drives the transport roller 32 to rotate, a bracket 34 fixedly connected to the table 2, and a sensor 35 fixedly connected to the bracket 34. In this embodiment, there are two brackets 34, which are respectively arranged at both ends of the table 2. The bracket 34 and the support roller 33 are arranged between the transport roller 32 and the first cleaning roller 4. The sensor 35 is used to sense whether the metal filter bag reaches the edge when moving, and to detect the cleanliness of the metal filter bag. In this embodiment, the sensor 35 can be an ultrasonic sensor 35. The ultrasonic receiver and the ultrasonic generator are respectively arranged on both sides of the metal filter bag to observe the change in the thickness of the metal filter bag, so as to determine whether it is clean.

[0037] refer to Figure 5 The tilting mechanism 6 includes a second screw rod assembly 61 fixedly connected to the frame 1, a third motor 62 that drives the moving end of the second screw rod assembly 61 to move, and a third rod 63 that is rotatably connected to the moving end of the second screw rod assembly 61. The table 2, the frame 1 and the second screw rod assembly 61 constitute a connecting rod mechanism. The end of the third rod 63 is rotatably connected to the table 2 and is coaxially connected to the first cleaning roller 4. In this way, the third rod 63 rotates around the first cleaning roller 4, and the third motor 62 drives the moving end of the second screw rod assembly 61 to move, so that the table 2 is tilted to one end, so that the plate ash accumulated inside the metal filter bag can be poured out.

[0038] refer to Figure 5 The power mechanism 9 includes a fourth motor 91, which drives the first cleaning roller 4 and the second cleaning roller 5 to rotate through a belt drive / chain drive. In order to prevent the belt / chain from being stretched, the fourth motor 91 is fixedly connected to the fourth motor 91 fixedly connected to the third rod 63.

[0039] The working principle of the cleaning roller height adjustment device of the present embodiment is as follows: First, the metal filter bag to be cleaned is placed on the transport roller 32 and support roller 33 of the transport mechanism 3. The second motor 31 is started, and the transport roller 32 rotates, driving the metal filter bag forward. When the metal filter bag passes the sensor 35 on the bracket 34, the sensor 35 senses the position and cleanliness level of the metal filter bag.

[0040] When the metal filter bag moves between the first cleaning roller 4 and the second cleaning roller 5, the first motor 73 is activated, driving the movable end of the first screw assembly 75 to move. This, through the linkage mechanism, rotates the first rod 72, thereby adjusting the height of the second cleaning roller 5 and clamping the metal filter bag. Simultaneously, the fourth motor 91 is activated, driving the first and second cleaning rollers 4 and 5 via a belt or chain drive. During the cleaning process, the transport mechanism 3 reciprocates the metal filter bag, ensuring full contact between the cleaning rollers at different locations on the bag's surface, achieving comprehensive cleaning.

[0041] During the cleaning process, the dust and impurities cleaned from the surface of the metal filter bag fall into the ash hopper 8 below under the action of gravity, and flow into the collection box 81 through the ash hopper 8. When the plate ash in the metal filter bag needs to be poured out, the third motor 62 is started, driving the moving end of the second screw assembly 61 to move, driving the third rod 63 to rotate, causing the table 2 to tilt, and the plate ash in the metal filter bag to pour out from one end. During the entire cleaning process, the pre-tightening assembly 74 applies a pre-tightening force to the end of the second rod 71 through the spring 744, ensuring that there is sufficient clamping force and friction between the cleaning roller and the metal filter bag, thereby improving the cleaning effect. At the same time, the sensor 35 monitors the position and cleanliness of the metal filter bag in real time to ensure the smooth progress of the cleaning process.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cleaning roller height adjustment device, characterized in that: The invention comprises a frame (1), a table (2) rotatably connected to the top of the frame (1), a transport mechanism (3) arranged on the table (2), at least one first cleaning roller (4) rotatably connected to the table (2), at least one second cleaning roller (5) movable relative to the table (2), a power mechanism (9) for driving the first cleaning roller (4) and the second cleaning roller (5) to rotate, and a moving mechanism (7) for driving the second cleaning roller (5) to move, wherein the transport mechanism (3) transports the metal filter bag between the first cleaning roller (4) and the second cleaning roller (5).

2. The cleaning roller height adjustment device according to claim 1, characterized in that: The moving mechanism (7) comprises a first rod (72) rotatably connected to the table (2), a second rod (71) rotatably connected to the first rod (72), a first screw assembly (75) fixedly connected to the table (2), a first motor (73) driving the moving end of the first screw assembly (75) to move, and a pre-tightening assembly (74) fixedly connected to the moving end of the first screw assembly (75), one end of the first rotating rod is coaxially connected to the first cleaning roller (4), and the other end is rotatably connected to the second cleaning roller (5), the end of the second rod (71) is rotatably connected to the pre-tightening assembly (74), and the pre-tightening assembly (74) applies a pre-tightening force to the end of the second rod (71), forcing the end of the second rod (71) to move toward one end of the table (2).

3. The cleaning roller height adjustment device according to claim 2, characterized in that: The pre-tightening assembly (74) includes a mounting block (746) fixedly connected to the moving end of the first screw assembly (75), a slide groove provided on the mounting block (746), a slide rod (741) fixedly connected to the inner wall of the slide groove, a moving block (742) and an adjustment plate (743) slidably connected to the slide rod (741), a spring (744) provided between the adjustment plate (743) and the moving block (742), and a screw rod (745) rotatably connected to the inner wall of the slide groove, the screw rod (745) is threadedly connected to the adjustment plate (743), the screw rod (745) passes through the moving block (742), one end of the screw rod (745) passes through the mounting block (746), one end of the spring (744) is fixedly connected to the adjustment plate (743), and the other end is fixedly connected to the moving block (742), the spring (744) forces the moving block (742) to move toward one end of the table (2), and the spring (744) is sleeved on the slide rod (741).

4. The cleaning roller height adjustment device according to claim 1, characterized in that: The transport mechanism (3) comprises a transport roller (32) and a support roller (33) arranged at both ends of the table (2), a second motor (31) for driving the transport roller (32) to rotate, a bracket (34) fixedly connected to the table (2), and a sensor (35) fixedly connected to the bracket (34). The bracket (34) and the support roller (33) are arranged between the transport roller (32) and the first cleaning roller (4). The sensor (35) is used to sense whether the metal filter bag reaches the edge when moving and to detect the cleanliness of the metal filter bag.

5. The cleaning roller height adjustment device according to claim 1, characterized in that: The invention also includes a tilting mechanism (6) which is arranged on the frame (1) and can adjust the tilt angle of the table (2), the bottom end of the table (2) is rotatably connected to the frame (1), and the tilting mechanism (6) is arranged at the other end of the table (2), and the tilting mechanism (6) includes a second screw rod assembly (61) fixedly connected to the frame (1), a third motor (62) driving the movable end of the second screw rod assembly (61) to move, and a third rod (63) rotatably connected to the second screw rod assembly (61), the end of the third rod (63) is coaxially connected to the first cleaning roller (4), and the end of the third rod (63) is rotatably connected to the table (2).

6. The cleaning roller height adjustment device according to claim 5, characterized in that: The power mechanism (9) comprises a fourth motor (91) fixedly connected to the third rod (63), and the fourth motor (91) drives the first cleaning roller (4) and the second cleaning roller (5) to rotate via a belt drive / chain drive.

7. The cleaning roller height adjustment device according to claim 1, characterized in that: It also includes an ash hopper (8) fixedly connected to the table (2), the ash hopper (8) is located below the first cleaning roller (4) and the second cleaning roller (5), and a collection box (81) is provided below the ash hopper (8).

8. The cleaning roller height adjustment device according to claim 1, characterized in that: The sum of the number of the first cleaning rollers (4) and the second cleaning rollers (5) is no more than 3.

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