Air floatation slag scraper

Abstract

The utility model discloses an air floatation slag scraper, which is applied to the technical field of air floatation slag scrapers, and adopts the technical scheme that the air floatation slag scraper comprises an air floatation tank, rack tracks are symmetrically and fixedly arranged on the air floatation tank, a driving gear and a slag scraping gear are respectively arranged on the rack tracks at intervals in a matched manner, a driving component is fixedly connected onto the driving gear, and a slag scraping component is fixedly connected onto the slag scraping gear. The slag scraping gear is rotatably connected with a slag scraping assembly used for realizing slag scraping of the air floatation tank, and the driving assembly is fixedly provided with a transmission assembly used for driving the slag scraping assembly and the slag scraping gear to perform transmission on the rack track. The slag scraping device has the technical effects of simple structure, stability in operation and high slag scraping efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of air flotation scraper machines, in particular to an air flotation scraper machine. Background Art

[0002] The flotation tank mainly uses flotation to treat sewage. It forms highly dispersed tiny bubbles in the water, which adhere to the hydrophobic solid or liquid particles in the wastewater to form a water-air-particle three-phase mixed system. The particles adhere to the bubbles to form flocs with an apparent density less than that of water and float to the water surface. The sewage is treated by scraping off the scum floating on the water surface.

[0003] At present, a Chinese utility model with announcement number CN208933023U discloses a scraper for use on a flotation tank, including a tank body, which is a rectangular parallelepiped with an opening at the top. A scraper device is arranged on the tank body, a vertical slide groove is opened on the tank body, a slider is arranged in the slide groove, and the slider is connected to a driving device, which is used to drive the slider to slide along the slide groove; the scraper device is fixed to the upper end of the slider.

[0004] The existing utility model achieves scraping by fixing the scraper plate on the chain and driving the sprocket to rotate through a driving motor, thereby driving the scraper plate to move. However, since the chain is in a tensioned state for a long time, the chain may become loose or broken, which may cause tooth jumping and cause the chains on both sides to be misaligned and detach from the sprocket, thereby causing the scraper plate to fall off. In large-scale civil engineering flotation tanks, since the size of the flotation tank is large, the chain is lengthened, which makes it more likely for the chain to be misaligned, increasing the complexity of repair and requiring improvement. Utility Model Content

[0005] The utility model aims to provide an air flotation scraper, which has the advantages of simple structure, stable operation and high scraping efficiency.

[0006] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: an air flotation scraper, including an air flotation tank; a rack track is symmetrically fixed on the air flotation tank, and a driving gear and a scraping gear are respectively and spaced apart on the rack track; a driving assembly is fixedly connected to the driving gear, and a scraping assembly for scraping the air flotation tank is rotatably connected to the scraping gear; a transmission assembly is fixedly provided on the driving assembly for driving the scraping assembly and the scraping gear to transmit on the rack track.

[0007] The utility model is further configured as follows: the driving assembly includes a first driving shaft coaxially fixedly connected to the driving gear and a first driving motor slidably connected to the flotation tank along the scraping direction based on a sliding assembly, for driving the first driving shaft to rotate.

[0008] The utility model is further configured as follows: the scraping assembly includes a second drive shaft coaxially connected to the scraping gear and a second drive motor also slidably connected to the flotation tank along the scraping direction based on the sliding assembly, and is used to drive the second drive shaft to rotate, and a scraping plate is fixedly connected to the second drive shaft.

[0009] The utility model is further configured as follows: the sliding assembly includes a sliding groove opened on the flotation tank along the scraping direction and a sliding block slidably connected to the sliding groove, and a mounting plate for mounting the first drive motor and the second drive motor is fixedly connected to the sliding block.

[0010] The utility model is further configured as follows: the transmission assembly includes a first transmission bearing coaxially fixedly connected to the first drive shaft and a second transmission bearing coaxially movably connected to the second drive shaft, a transmission rod being fixedly connected between the first transmission bearing and the second transmission bearing, and when scraping slag, the first drive motor drives the first drive shaft to rotate, drives the transmission rod to push the second drive shaft to move along the scraping direction, and the second drive shaft drives the scraping gear to rotate on the rack track, and when it is necessary to push the scraped slag to a specified position in the flotation tank, the second drive motor drives the second drive shaft to rotate, thereby drives the scraping plate to rotate, thereby pushing the scraping slag to the specified position, and then the second drive motor continues to drive the second drive shaft to rotate, thereby driving the scraping plate to reset, and the drive assembly drives the scraping assembly to move in the opposite direction to achieve two-way scraping.

[0011] The utility model is further configured as follows: a gear limit block for ensuring the meshing transmission stability between the driving gear and the scraper gear and the rack track is fixedly provided on the rack track, and the scraper gear and the driving gear have the same specifications and sizes.

[0012] The utility model is further configured as follows: the rack track is formed by assembling and splicing a plurality of racks.

[0013] The utility model is further configured as follows: the flotation tank comprises a scum separation zone and scum collection zones arranged at both ends of the scum separation zone, and the scum separation zone and the scum collection zone are separated by an inclined baffle.

[0014] The utility model is further configured that: the second driving motor uses a variable frequency motor to achieve low-speed pushing of the slag and high-speed rotation and reset.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. A rack track is arranged on the flotation tank, and a driving assembly and a scraping assembly are arranged on the rack track based on the driving gear and the scraping gear, respectively, and a transmission assembly is arranged between the driving assembly and the scraping assembly. When scraping, the first driving motor of the driving assembly drives the first rotating shaft to rotate, thereby driving the driving gear to move on the rack track. During the movement, the first rotating shaft drives the transmission rod to push the second driving shaft to move along the scraping direction. Since the second driving shaft is movably arranged in the second transmission bearing, the second driving shaft will not rotate due to the push of the transmission rod. The transmission rod pushes the second driving shaft to move along the scraping direction, thereby driving the scraping gear to rotate on the rack track. The synchronous movement of the driving assembly and the scraping assembly is realized. When the scum in the scum separation area is pushed to the scum collection area, the second driving motor drives the second driving shaft to rotate, thereby driving the scraping plate to rotate 90 degrees, thereby pushing the scum into the scum collection area. Then the second driving motor continues to drive the scraping plate to rotate 90 degrees in the opposite direction or 270 degrees in the forward direction, thereby resetting the scraping plate. Then the driving assembly continues to drive the scraping assembly to perform secondary scraping along the reverse motion. In this way, two scraping operations can be performed in one reciprocating motion, thereby improving the scraping effect and efficiency. The structure is simple, and a gear limit block is arranged on the rack track, thereby making the coordination between the gear and the rack more stable, thereby improving the difficulty of maintenance.

[0017] 2. The rack track is assembled and spliced ​​by a number of racks to meet the scraping needs of flotation tanks of different sizes. The structure is simpler, and there is no need to replace the drive assembly and scraping assembly for flotation tanks of different sizes, which greatly reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0019] Figure 2 yes Figure 1 An enlarged schematic diagram of part B.

[0020] Figure numerals: 1. flotation tank; 11. scum separation area; 12. scum collection area; 2. rack track; 21. gear limit block; 3. drive gear; 4. scum scraper gear; 5. drive assembly; 51. first drive shaft; 52. first drive motor; 6. scum scraper assembly; 61. second drive shaft; 62. second drive motor; 63. scum scraper plate; 7. transmission assembly; 71. first transmission bearing; 72. second transmission bearing; 73. transmission rod; 8. sliding assembly; 81. sliding groove; 82. sliding block; 83. mounting plate. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Example:

[0023] refer to Figure 1 to Figure 2 , an air flotation scraper, comprising an air flotation tank 1, a rack track 2 is symmetrically fixed on the air flotation tank 1, a driving gear 3 and a scraper gear 4 are spaced and matched on the rack track 2, a driving assembly 5 is fixedly connected to the driving gear 3, a scraper assembly 6 for scraping the air flotation tank 1 is rotatably connected to the scraper gear 4, and a transmission assembly 7 for driving the scraper assembly 6 and the scraper gear 4 to transmit on the rack track 2 is fixed on the driving assembly 5. A gear limit block 21 for ensuring the stability of the meshing transmission between the driving gear 3 and the scraper gear 4 and the rack track 2 is fixed on the rack track 2, so that the matching between the gear and the rack is more stable, and the difficulty of maintenance is increased. The scraper gear 4 and the driving gear 3 have the same size, so as to further ensure the stability of the transmission between the scraper assembly 6 and the driving assembly 5. In this embodiment, the rack track 2 is assembled and spliced ​​by a plurality of racks, so as to adapt to the scraping requirements of flotation tanks 1 of different sizes. The structure is simpler, and there is no need to replace the drive assembly 5 and the scraping assembly 6 for flotation tanks 1 of different sizes, which greatly reduces the manufacturing cost.

[0024] refer to Figure 1 Specifically, the driving assembly 5 includes a first driving shaft 51 coaxially fixedly connected to the driving gear 3 and a first driving motor 52 slidably connected to the flotation tank 1 along the scraping direction based on the sliding assembly 8, used to drive the first driving shaft 51 to rotate. The scraping assembly 6 includes a second driving shaft 61 coaxially rotatably connected to the scraping gear 4 and a second driving motor 62 slidably connected to the flotation tank 1 along the scraping direction based on the sliding assembly 8, used to drive the second driving shaft 61 to rotate. A scraping plate 63 is fixedly connected to the second driving shaft 61. The sliding assembly 8 includes a sliding groove 81 opened on the flotation tank 1 along the scraping direction and a sliding block 82 slidably connected to the sliding groove 81. A mounting plate 83 is fixedly connected to the first drive motor 52 and the second drive motor 62. When scraping, the first drive motor 52 of the drive assembly 5 drives the first drive shaft 51 to rotate. Since the first drive shaft 51 is fixedly connected to the drive gear 3, the rotation of the first drive shaft 51 drives the drive gear 3 to rotate, thereby realizing movement on the rack track 2. During the movement of the first drive shaft 51, the second drive shaft 61 is pushed to move along the scraping direction through the transmission assembly 7. Since the second drive shaft 61 cannot rotate by itself and the second drive shaft 61 is rotatably connected to the scraping gear 4, the movement of the second drive shaft 61 will drive the scraping gear 4 to rotate on the rack track 2, thereby realizing synchronous movement with the drive gear 3.

[0025] refer to Figure 2Specifically, the transmission assembly 7 includes a first transmission bearing 71 coaxially fixedly connected to the first drive shaft 51 and a second transmission bearing 72 coaxially movably connected to the second drive shaft 61. A transmission rod 73 is fixedly connected between the first transmission bearing 71 and the second transmission bearing 72. The flotation tank 1 includes a scum separation area 11 and scum collection areas 12 arranged at both ends of the scum separation area 11. The scum separation area 11 and the scum collection area 12 are separated based on an inclined baffle to prevent the scum from re-entering the scum separation area 11 and affecting the scraping effect. When scraping, the first The driving motor 52 drives the first driving shaft 51 to rotate and drives the transmission rod 73 to push the second driving shaft 61 to move along the scraping direction. The second driving shaft 61 drives the scraping gear 4 to rotate on the rack track 2. When the scraped scum needs to be pushed to a specified position in the flotation tank 1, the second driving motor 62 drives the second driving shaft 61 to rotate, thereby driving the scraping plate 63 to rotate, thereby pushing the scraping scum to the specified position. Then the second driving motor 62 continues to drive the second driving shaft 61 to rotate, thereby driving the scraping plate 63 to reset, and the driving assembly 5 drives the scraping assembly 6 to move in the opposite direction to achieve two-way scraping. In this embodiment, the second driving motor 62 uses a variable frequency motor to achieve low-speed pushing of the scum and high-speed rotation and reset, thereby improving the efficiency of scraping.

[0026] Brief description of the use process: When scraping, the first driving motor 52 of the driving assembly 5 drives the first rotating shaft to rotate, thereby driving the driving gear 3 to move on the rack track 2. During the movement, the first rotating shaft drives the transmission rod 73 to push the second driving shaft 61 to move along the scraping direction. The transmission rod 73 pushes the second driving shaft 61 to move along the scraping direction, thereby driving the scraping gear 4 to rotate on the rack track 2, thereby realizing the synchronous movement of the driving assembly 5 and the scraping assembly 6. When the scum in the scum separation area 11 is pushed to the scum collection area 12, the second driving motor 62 drives the second driving shaft 61 to rotate, thereby driving the scraping plate 63 to rotate 90 degrees, thereby pushing the scum into the scum collection area 12, and then the second driving motor 62 continues to drive the scraping plate 63 to rotate 90 degrees in the opposite direction or 270 degrees in the forward direction to achieve the resetting of the scraping plate 63, and then the driving assembly 5 continues to drive the scraping assembly 6 to move in the reverse direction to achieve secondary scraping.

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An air flotation scraper, comprising an air flotation tank (1); characterized in that: The flotation tank (1) is symmetrically fixed with a rack track (2), the rack track (2) is respectively provided with a driving gear (3) and a scraping gear (4) at intervals, the driving gear (3) is fixedly connected with a driving assembly (5), the scraping gear (4) is rotatably connected with a scraping assembly (6) for scraping the flotation tank (1), and the driving assembly (5) is fixedly provided with a transmission assembly (7) for driving the scraping assembly (6) and the scraping gear (4) to transmit on the rack track (2).

2. The air flotation scraper according to claim 1, characterized in that: The driving assembly (5) comprises a first driving shaft (51) coaxially fixedly connected to the driving gear (3) and a first driving motor (52) slidably connected to the flotation tank (1) along a scraping direction based on a sliding assembly (8) and used for driving the first driving shaft (51) to rotate.

3. The air flotation scraper according to claim 2, characterized in that: The scraper assembly (6) comprises a second drive shaft (61) coaxially rotatably connected to the scraper gear (4) and a second drive motor (62) slidably connected to the flotation tank (1) along the scraper direction based on the sliding assembly (8) and used to drive the second drive shaft (61) to rotate, and a scraper plate (63) is fixedly connected to the second drive shaft (61).

4. The air flotation scraper according to claim 3, characterized in that: The sliding assembly (8) comprises a sliding groove (81) provided on the flotation tank (1) along a scraping direction and a sliding block (82) slidably connected to the sliding groove (81); a mounting plate (83) for mounting the first drive motor (52) and the second drive motor (62) is fixedly connected to the sliding block (82).

5. The air flotation scraper according to claim 3, characterized in that: The transmission assembly (7) comprises a first transmission bearing (71) coaxially fixedly connected to the first drive shaft (51) and a second transmission bearing (72) coaxially movably connected to the second drive shaft (61), and a transmission rod (73) is fixedly connected between the first transmission bearing (71) and the second transmission bearing (72).

6. The air flotation scraper according to claim 1, characterized in that: A gear limit block (21) is fixedly provided on the rack track (2) for ensuring the meshing transmission stability between the driving gear (3) and the scraper gear (4) and the rack track (2); the scraper gear (4) and the driving gear (3) have the same specifications and sizes.

7. The air flotation scraper according to claim 1, characterized in that: The rack track (2) is formed by assembling and splicing a plurality of racks.

8. The air flotation scraper according to claim 5, characterized in that: The flotation tank (1) comprises a scum separation zone (11) and scum collection zones (12) arranged at both ends of the scum separation zone (11), and the scum separation zone (11) and the scum collection zone (12) are separated by an inclined baffle.

9. The air flotation scraper according to claim 3, characterized in that: The second driving motor (62) uses a variable frequency motor to push the slag at a low speed and rotate and reset it at a high speed.

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