A drum screen with a rapid cleaning device for biomass ash treatment

Abstract

This utility model relates to the field of biomass ash treatment technology, and discloses a drum screen with a rapid cleaning device for biomass ash treatment. It includes a fixed frame, a motor fixedly connected to the upper outer wall of the fixed frame, a transmission rod fixedly connected to the output end of the motor, a screen fixedly connected to the outer wall of the transmission rod, and a hopper fixedly connected to the lower outer wall of the fixed frame. The key feature is that a cleaning assembly for cleaning the screen is installed inside the fixed frame. This drum screen with a rapid cleaning device for biomass ash treatment rotates by the transmission rod, which drives a drive gear. This drive gear, in turn, drives a drive belt pulley, which in turn drives a driven belt pulley. This causes the shaft to rotate a cleaning brush in the opposite direction to the screen, resulting in a faster relative speed between the screen and the cleaning brush, allowing for better cleaning of tightly stuck materials on the screen.

Description

Technical Field

[0001] This utility model relates to the technical field of biomass ash treatment, specifically a drum screen with a rapid cleaning device for biomass ash treatment. Background Technology

[0002] The ash produced after the combustion of biomass boilers mainly consists of unburned biomass residues, inorganic minerals, and some oxides produced by combustion. The amount and composition of ash produced after the combustion of different biomass fuels vary. After screening, washing, dewatering, and packaging, biomass ash is processed to obtain different products, which can be used as a substitute for ceramsite, for river water purification, brick making, etc.

[0003] According to a rotary drum screen with a rapid cleaning device (Announcement No.: CN221108886U), the above application does not require manual cleaning, reducing the intensity of manual labor. It can clean the sticky material without stopping the machine during the screening process. Moreover, the diameter of the brush roller is smaller than the diameter of the rotary drum screen hole, which can clean the sticky material that is difficult to clean. The cleaning efficiency is high and the cleaning effect is good.

[0004] However, in actual use, the brush roller rotates in the same direction as the drum screen. When the drum screen rotates, the relative speed between the brush roller and the drum screen is low, making it difficult to clean the tightly adhered raw materials on the drum screen. In view of this, we propose a drum screen with a rapid cleaning device for biomass ash treatment. Utility Model Content

[0005] The purpose of this invention is to provide a drum screen with a rapid cleaning device for treating biomass ash residue, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a drum screen with a rapid cleaning device for treating biomass ash, comprising a fixed frame, a motor fixedly connected to the upper outer wall of the fixed frame, a transmission rod fixedly connected to the output end of the motor, a screen fixedly connected to the outer wall of the transmission rod, a hopper fixedly connected to the lower outer wall of the fixed frame, and a cleaning assembly for cleaning the screen provided inside the fixed frame, the cleaning assembly comprising: A drive gear is fixedly connected to the end of a transmission rod. A transmission gear meshes with the outer wall of the drive gear. A drive pulley is fixedly connected to the outer wall of the transmission gear. A transmission belt is drivenly connected to the outer wall of the drive pulley. The driven pulley is driven to the end of the drive belt away from the driving pulley. A limit block is fixedly connected to the inner wall of the driven pulley, and a rotating shaft is slidably connected to the outer wall of the limit block. A cleaning brush is fixedly connected to the outer wall of the rotating shaft.

[0007] Preferably, the outer wall of the rotating shaft is provided with a limiting groove, the limiting block passes through the limiting groove and is slidably connected to the inner wall of the limiting groove, the rotating shaft is rotatably connected to the upper inner wall of the fixed frame, and the rotating shaft can cause the driven pulley to rotate through the cooperation of the limiting block and the limiting groove.

[0008] Preferably, the drive pulley is fixedly connected to the shaft of the transmission gear, and both the transmission gear and the drive pulley are rotatably connected to the lower inner wall of the fixed frame. When the transmission rod rotates, it causes the drive gear to rotate, which in turn drives the drive pulley to rotate. The direction of rotation of the drive pulley is opposite to the direction of the shaft.

[0009] Preferably, the cleaning brush contacts the outer wall of the screen, and the end of the rotating shaft near the driven pulley passes through the outer wall of the fixed frame and is slidably connected to the inner wall of the fixed frame. When the screen rotates, the cleaning brush rotates accordingly to clean the slag stuck on the screen.

[0010] Preferably, the fixing frame is provided with a fixing component for disassembling the cleaning brush. The fixing component includes a slot at the end of the fixing frame. A cover plate is rotatably connected to the outer wall of the fixing frame. A locking plate is fixedly connected to the outer wall of the cover plate. A buckle plate is rotatably connected to the outer wall of the fixing frame, so that the fixing component can fix the rotating shaft to the fixing frame.

[0011] Preferably, the outer wall of the buckle plate is provided with a torsion spring, the outer wall of the lock plate is provided with a lock groove, the buckle plate passes through the lock groove and is rotatably connected to the fixing frame, and the lower outer wall of the buckle plate contacts the upper outer wall of the lock plate, so that the buckle plate can press the lock plate on the outer wall of the fixing frame, thereby fixing the position of the cover plate.

[0012] Preferably, the size of the slot is the same as the size of the rotating shaft, and the rotating shaft slides through the slot and is connected to the inner wall of the slot. The rotating shaft can slide out of the slot when the cover is opened, at which time the cleaning brush can be removed and replaced, thus preventing the cleaning brush from being used for too long.

[0013] Compared with the prior art, this utility model provides a drum screen with a rapid cleaning device for biomass ash treatment, which has the following beneficial effects: 1. The biomass ash slag treatment uses a drum screen with a rapid cleaning device. The drive gear rotates through the rotation of the transmission rod, which in turn drives the drive pulley to rotate. The drive pulley in turn drives the driven pulley to rotate, which in turn drives the shaft to rotate the cleaning brush in the opposite direction to the screen. This results in a faster relative speed between the screen and the cleaning brush, allowing for better cleaning of materials that are tightly stuck on the screen.

[0014] 2. This biomass ash slag treatment uses a drum screen with a quick cleaning device. When the brush bristles of the cleaning brush are worn out, the buckle plate can be rotated. At this time, the buckle plate is aligned with the locking groove, and the locking plate can be removed from the buckle plate to expose the slot. Then, the rotating shaft can be slid out of the slot to facilitate the replacement of the cleaning brush. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the cover plate opening structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing frame of this utility model; Figure 4 This is a schematic diagram of the cleaning component structure of this utility model.

[0016] In the diagram: 1. Fixing frame; 2. Motor; 3. Transmission rod; 4. Screen; 5. Feed hopper; 6. Cleaning assembly; 61. Drive gear; 62. Transmission gear; 63. Drive pulley; 64. Transmission belt; 65. Driven pulley; 66. Limit block; 67. Rotating shaft; 68. Cleaning brush; 7. Fixing assembly; 71. Slot; 72. Cover plate; 73. Locking plate; 74. Buckle plate. Detailed Implementation

[0017] like Figures 1-4 As shown, this utility model provides a technical solution: a drum screen with a rapid cleaning device for treating biomass ash, including a fixed frame 1, a motor 2 fixedly connected to the upper outer wall of the fixed frame 1, a transmission rod 3 fixedly connected to the output end of the motor 2, a screen 4 fixedly connected to the outer wall of the transmission rod 3, a hopper 5 fixedly connected to the lower outer wall of the fixed frame 1, and a cleaning component 6 for cleaning the screen 4 is provided inside the fixed frame 1. The cleaning component 6 includes a drive gear 61, a transmission gear 62, a drive pulley 63, a transmission belt 64, a driven pulley 65, a limit block 66, a rotating shaft 67, and a cleaning brush 68.

[0018] In one embodiment of the present invention, the drive gear 61 is fixedly connected to the end of the transmission rod 3, the outer wall of the drive gear 61 is meshed with the transmission gear 62, the outer wall of the transmission gear 62 is fixedly connected with the drive pulley 63, and the outer wall of the drive pulley 63 is connected with the transmission belt 64.

[0019] In one embodiment of the present invention, the driven pulley 65 is driven to the end of the transmission belt 64 away from the driving pulley 63. The inner wall of the driven pulley 65 is fixedly connected to a limit block 66, the outer wall of the limit block 66 is slidably connected to a rotating shaft 67, and the outer wall of the rotating shaft 67 is fixedly connected to a cleaning brush 68.

[0020] In addition, a limiting groove is provided on the outer wall of the rotating shaft 67, and the limiting block 66 slides through the limiting groove and is connected to the inner wall of the limiting groove. The rotating shaft 67 is rotatably connected to the upper inner wall of the fixed frame 1. The rotating shaft 67 can make the driven pulley 65 rotate through the cooperation of the limiting block 66 and the limiting groove, so that the cleaning brush 68 rotates with the driven pulley 65 to clean the slag stuck on the screen hole of the screen 4.

[0021] In this embodiment of the utility model, the drive pulley 63 is fixedly connected to the shaft of the transmission gear 62. Both the transmission gear 62 and the drive pulley 63 are rotatably connected to the lower inner wall of the fixed frame 1. When the transmission rod 3 rotates, it causes the drive gear 61 to rotate, which in turn drives the transmission gear 62 to rotate the drive pulley 63. The direction of rotation of the drive pulley 63 is opposite to the direction of the rotating shaft 67, so that the cleaning brush 68 can better clean the screen 4.

[0022] In this embodiment of the present invention, the cleaning brush 68 contacts the outer wall of the screen 4, and the end of the rotating shaft 67 near the driven pulley 65 passes through the outer wall of the fixed frame 1 and is slidably connected to the inner wall of the fixed frame 1. When the screen 4 rotates, the cleaning brush 68 rotates accordingly to clean the slag stuck on the screen 4.

[0023] In an embodiment of this utility model, the fixing frame 1 is provided with a fixing component 7 for disassembling the cleaning brush 68. The fixing component 7 includes a slot 71, which is opened at the end of the fixing frame 1. A cover plate 72 is rotatably connected to the outer wall of the fixing frame 1. A locking plate 73 is fixedly connected to the outer wall of the cover plate 72. A buckle plate 74 is rotatably connected to the outer wall of the fixing frame 1, so that the fixing component 7 can fix the rotating shaft 67 on the fixing frame 1, and the cleaning brush 68 can stably clean the screen 4.

[0024] In an embodiment of this utility model, a torsion spring is provided on the outer wall of the buckle plate 74, and a locking groove is provided on the outer wall of the locking plate 73. The buckle plate 74 passes through the locking groove and is rotatably connected to the fixing frame 1. The lower outer wall of the buckle plate 74 contacts the upper outer wall of the locking plate 73, so that the buckle plate 74 can press the locking plate 73 onto the outer wall of the fixing frame 1, thereby fixing the position of the cover plate 72 and thus fixing the position of the rotating shaft 67.

[0025] In an embodiment of this utility model, the size of the slot 71 is the same as the size of the rotating shaft 67. The rotating shaft 67 passes through the slot 71 and is slidably connected to the inner wall of the slot 71. When the cover plate 72 is opened, the rotating shaft 67 can slide out of the slot 71. At this time, the cleaning brush 68 can be removed and replaced, so that when the cleaning brush 68 has been used for too long and the bristles of the cleaning brush 68 are worn out, the cleaning brush 68 can be easily replaced.

[0026] In this invention, during use, the motor 2 drives the transmission rod 3 to rotate, thereby causing the screen 4 to rotate and filter the slag. At this time, the rotation of the transmission rod 3 drives the drive gear 61 to rotate, thereby causing the transmission gear 62 meshing with it to rotate in the opposite direction. The transmission gear 62 drives the drive pulley 63, which in turn drives the drive belt 64 to drive the driven pulley 65 to rotate. This causes the rotating shaft 67 to drive the cleaning brush 68 to rotate in the opposite direction to the screen 4, so that the material that is stuck tightly on the screen 4 can be cleaned better. When the bristles of the cleaning brush 68 are worn out, the buckle plate 74 can be rotated. At this time, the buckle plate 74 is aligned with the locking groove, and the locking plate 73 can be removed from the buckle plate 74, exposing the slot 71. Then, the rotating shaft 67 can be slid out of the slot 71, which makes it easy to replace the cleaning brush 68.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A rotary screen with a rapid cleaning device for treating biomass ash residue, comprising a fixed frame (1), wherein a motor (2) is fixedly connected to the upper outer wall of the fixed frame (1), a transmission rod (3) is fixedly connected to the output end of the motor (2), a screen (4) is fixedly connected to the outer wall of the transmission rod (3), and a hopper (5) is fixedly connected to the lower outer wall of the fixed frame (1), characterized in that: The fixing frame (1) is internally provided with a cleaning component (6) for cleaning the screen (4), the cleaning component (6) including: The driving gear (61) is fixedly connected to the end of the transmission rod (3). The outer wall of the driving gear (61) is meshed with the transmission gear (62). The outer wall of the transmission gear (62) is fixedly connected to the driving pulley (63). The outer wall of the driving pulley (63) is connected to the transmission belt (64). Driven pulley (65) is connected to the end of drive belt (64) away from drive pulley (63). A limit block (66) is fixedly connected to the inner wall of driven pulley (65). A rotating shaft (67) is slidably connected to the outer wall of the limit block (66). A cleaning brush (68) is fixedly connected to the outer wall of the rotating shaft (67).

2. A rotary drum screen with a rapid cleaning device for treating biomass ash as described in claim 1, characterized in that: The outer wall of the rotating shaft (67) is provided with a limiting groove, the limiting block (66) passes through the limiting groove and is slidably connected to the inner wall of the limiting groove, and the rotating shaft (67) is rotatably connected to the upper inner wall of the fixed frame (1).

3. A rotary drum screen with a rapid cleaning device for treating biomass ash as described in claim 1, characterized in that: The drive pulley (63) is fixedly connected to the shaft of the transmission gear (62), and both the transmission gear (62) and the drive pulley (63) are rotatably connected to the lower inner wall of the fixed frame (1).

4. A drum screen with a rapid cleaning device for treating biomass ash as described in claim 1, characterized in that: The cleaning brush (68) contacts the outer wall of the screen (4), and the end of the rotating shaft (67) near the driven pulley (65) passes through the outer wall of the fixed frame (1) and is slidably connected to the inner wall of the fixed frame (1).

5. A rotary drum screen with a rapid cleaning device for treating biomass ash as described in claim 1, characterized in that: The fixing frame (1) is provided with a fixing component (7) for disassembling the cleaning brush (68). The fixing component (7) includes a slot (71) which is opened at the end of the fixing frame (1). A cover plate (72) is rotatably connected to the outer wall of the fixing frame (1). A locking plate (73) is fixedly connected to the outer wall of the cover plate (72). A buckle plate (74) is rotatably connected to the outer wall of the fixing frame (1).

6. A drum screen with a rapid cleaning device for treating biomass ash as described in claim 5, characterized in that: The outer wall of the buckle plate (74) is provided with a torsion spring, and the outer wall of the lock plate (73) is provided with a lock groove. The buckle plate (74) passes through the lock groove and is rotatably connected to the fixing frame (1). The lower outer wall of the buckle plate (74) is in contact with the upper outer wall of the lock plate (73).

7. A rotary drum screen with a rapid cleaning device for treating biomass ash as described in claim 5, characterized in that: The size of the slot (71) is the same as the size of the pivot (67), and the pivot (67) slides through the slot (71) and is connected to the inner wall of the slot (71).

Images