A discharge device for a flotation machine
By designing an adjustable blade discharge device, the problems of low concentrate recovery rate and cumbersome replacement caused by non-adjustable blades in the existing technology have been solved, thereby improving the concentrate recovery rate and simplifying replacement.
Patent Information
- Application Number
- CN202520902922.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-09
AI Technical Summary
In the existing flotation machine's discharge device, the blade height is not adjustable, resulting in some concentrate not being effectively scraped into the concentrate bin, leading to a decrease in recovery rate; blade replacement and maintenance are cumbersome, requiring the disassembly of multiple bolts and components, affecting production efficiency; and the adjustment precision is insufficient, resulting in inaccurate scraping depth.
A ore discharge device was designed, comprising components such as a vertical plate, a rotating shaft, a connecting structure, a connecting column, a moving groove, a slider, blades, a fixing bar, and a scale plate. The slider is driven by a threaded rod to slide within the moving groove, achieving stepless adjustment of the blade height. A tungsten carbide coating is used to reduce friction and simplify the replacement process.
It enables flexible adjustment of blade height, improves concentrate recovery rate, reduces the hassle of frequent replacement, and lowers maintenance costs and adjustment errors.
Smart Images

Figure CN224672880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of regulation technology, and in particular to a discharge device for a flotation machine. Background Technology
[0002] Existing flotation machine discharge devices, through their structural design, facilitate the disassembly of blades. However, during operation, the blade height cannot be adjusted, making it difficult to effectively scrape the concentrate from the froth layer into the concentrate tank. This results in some concentrate loss in the tailings, reducing the concentrate recovery rate and the inconvenience of frequent replacements. For example, Chinese patent disclosure "A discharge device for a continuous flotation machine" (application number: CN202122788596.4) includes a rotating rod and blades. The blades are two in number and symmetrically arranged, with hollow blocks fixedly connected to the four ends of the opposing sides of the two blades. The rotating rod has fixed blocks fixedly connected to the four ends of one symmetrical side, and the top of the rotating rod is equipped with a rotating mechanism for rotating the rod. The mechanism is identical on all four hollow blocks and all four fixed blocks. Each hollow block has an arc-shaped block at its top, with the bottom of the arc-shaped block passing through and sliding inside the hollow block. The hollow block contains a connecting mechanism for connecting the arc-shaped block. One side of each fixed block has a first groove adapted to the hollow block, and the fixed block contains a second groove adapted to the arc-shaped block and communicating with the first groove. This structure facilitates use, but it cannot adjust the height of the blades, making it difficult to effectively scrape the concentrate from the foam layer into the concentrate trough, resulting in some concentrate loss in the tailings, thus reducing the concentrate recovery rate. It also reduces the inconvenience of frequent replacements, limiting its usability.
[0003] In summary, the existing technology has the following technical problems: 1. The blade height is not adjustable: In the discharge device of the existing flotation machine, the blades are fixedly installed and cannot be dynamically adjusted according to the thickness of the froth layer. As a result, some concentrate is not effectively scraped into the concentrate trough, resulting in a decrease in recovery rate (approximately 10%-15% loss of concentrate).
[0004] 2. Cumbersome replacement and maintenance: In traditional devices, the blades and connecting structures are fixedly connected. When replacing them, multiple bolts and parts need to be disassembled. A single replacement takes up to 30 minutes and requires machine shutdown, which affects production efficiency.
[0005] 3. Insufficient adjustment precision: The existing adjustment mechanism relies on manual visual alignment of the scale plate (e.g., scale interval is 5mm), resulting in a large adjustment error (±3mm) and inaccurate scraping depth. Utility Model Content
[0006] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a discharge device for a flotation machine. By setting up a vertical plate, a rotating shaft, a connecting structure, a first connecting column, a second connecting column, a moving groove, a first slider, blades, a fixing bar and a scale plate, an indicator block, a fixing plate, a bolt, and a threaded rod, the height of the blades can be easily adjusted, thereby improving the recovery rate of concentrate and reducing the inconvenience of frequent replacements.
[0007] This utility model also provides a discharge device for a flotation machine as described above, comprising: a vertical plate, a rotating shaft rotatably connected to the vertical plate, a connecting structure fixedly connected to the side surface of the rotating shaft, a connecting column detachably connected to the connecting structure, a connecting column 2 fixedly connected to one side surface of the connecting column, a moving groove provided on the connecting column 2, a slider 1 slidably connected in the moving groove, a blade fixedly connected to one side surface of the slider, a fixing strip and a scale plate fixedly connected to the upper surface of the blade and the bolt 1 respectively, an indicator block fixedly connected to the side surface of the fixing strip, a fixing plate provided on one side surface of the connecting column, the fixing plate being connected to the connecting column 1 by the bolt 1, a threaded rod threadedly connected to the fixing plate, the threaded rod penetrating the fixing plate and extending into the moving groove, the other end of the threaded rod being rotatably connected to the slider 1. Through the above structure, the height of the blades can be easily adjusted, improving the concentrate recovery rate and reducing the inconvenience of frequent replacements.
[0008] Furthermore, the connection structure includes a fixed column, on which a movable groove is provided. A pressure plate is slidably connected in the movable groove, and a threaded column is rotatably connected to the upper surface of the pressure plate. The threaded column is threadedly connected to the fixed column. Through the above structure, it is easy to drive the pressure plate to descend, while fixing its position.
[0009] Furthermore, a slider two is slidably connected inside the movable groove one, and a connecting post one is fixedly connected to the side surface of the slider two. Through the above structure, it is convenient for the connecting post one to slide.
[0010] Furthermore, the slider two is provided with a movable groove two, and a slider three is slidably connected in the movable groove two. The slider three is provided with a slot, and both ends of the slot are provided with rounded chamfers. A locking block is fixedly connected to the upper surface of the slider three, and a limiting block is fixedly connected to the side surface of the slider three. Through the above structure, the slider three can slide easily, while being limited to prevent it from falling off, and the insertion of the limiting post is also convenient.
[0011] Furthermore, a limiting post and a spring are fixedly connected inside the movable groove two. The other end of the spring is fixedly connected to the lower surface of the slider three and is located outside the slider three. The limiting post is located inside the spring. Through the above structure, it is convenient to limit the spring.
[0012] Furthermore, a connecting block is provided on the upper surface of the upright plate, and the connecting block is connected to the upright plate by bolts. The above structure facilitates the connection between the connecting block and the upright plate.
[0013] Furthermore, a motor is fixedly connected to the side surface of the upright plate, and the output end of the motor is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the upright plate and the connecting block. Through the above structure, it is easy to drive the rotating shaft to rotate, and it is also easy for the shaft to rotate.
[0014] Furthermore, a fixing block is fixedly connected to the side surface of the upright plate, and two bolts are threaded onto the fixing block. This structure facilitates the fixing of the upright plate.
[0015] Furthermore, the moving groove and slider are coated with tungsten carbide.
[0016] Beneficial effects:
[0017] Compared with existing technologies, the discharge device of this flotation machine drives a slider to slide in the moving trough through a threaded rod, thereby achieving stepless adjustment of the blade height (adjustment range 0-50mm) and improving the concentrate recovery rate.
[0018] 2. The moving groove and slider are coated with tungsten carbide, which effectively reduces the coefficient of friction, significantly extends the wear cycle, and significantly reduces the annual maintenance cost. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0020] Figure 1 This is an overall structural diagram of the discharge device of a flotation machine according to the present invention;
[0021] Figure 2 This is a bottom view of the discharge device of a flotation machine according to the present invention.
[0022] Figure 3 This is a cross-sectional view of the discharge device of a flotation machine according to the present invention.
[0023] Figure 4 This is a longitudinal sectional view of the discharge device of a flotation machine according to the present invention;
[0024] Figure 5 This is a structural diagram of the moving trough of the discharge device of a flotation machine according to the present invention;
[0025] Figure 6 This utility model relates to a discharge device for a flotation machine. Figure 4 Enlarged structural diagram at point D.
[0026] Legend:
[0027] 1. Vertical plate; 2. Connecting block; 3. Motor; 4. Rotating shaft; 5. Fixed column; 6. Connecting column one; 7. Bolt one; 8. Connecting column two; 9. Scale plate; 10. Blade; 11. Moving groove; 12. Fixed plate; 13. Threaded rod; 14. Fixed block; 15. Bolt two; 16. Bolt three; 17. Fixed strip; 18. Indicator block; 19. Slider one; 20. Pressure plate; 21. Movable groove one; 22. Locking block; 23. Slider two; 24. Movable groove two; 25. Spring; 26. Limiting column; 27. Slider three; 28. Locking groove; 29. Threaded column. Detailed Implementation
[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0029] Reference Figure 1-6 This utility model discloses a discharge device for a flotation machine, comprising: a vertical plate 1, a connecting block 2 disposed on the upper surface of the vertical plate 1, the connecting block 2 being connected to the vertical plate 1 by bolt 3 16, a motor 3 fixedly connected to the side surface of the vertical plate 1, the output end of the motor 3 being fixedly connected to a rotating shaft 4, and the rotating shaft 4 being rotatably connected to the vertical plate 1 and the connecting block 2, a fixing block 14 fixedly connected to the side surface of the vertical plate 1, a bolt 2 15 threadedly connected to the fixing block 14, a rotating shaft 4 rotatably connected to the vertical plate 1, a connecting structure fixedly connected to the side surface of the rotating shaft 4, a connecting column 1 detachably connected to the connecting structure, and a connecting column 1 6 fixedly connected to the side surface of the connecting column 1 6. A connecting column 2 (8) is connected, and a movable groove 11 is provided on the connecting column 2 (8). A slider 19 is slidably connected in the movable groove 11. A blade 10 is fixedly connected to the side surface of the slider 19. A fixing strip 17 and a scale plate 9 are fixedly connected to the upper surface of the blade 10 and the bolt 17, respectively. An indicator block 18 is fixedly connected to the side surface of the fixing strip 17. A fixing plate 12 is provided on the side surface of the connecting column 1 (6), and the fixing plate 12 is connected to the connecting column 1 (6) by the bolt 17. A threaded rod 13 is threadedly connected to the fixing plate 12, and the threaded rod 13 passes through the fixing plate 12 and extends into the movable groove 11. The other end of the threaded rod 13 is rotatably connected to the slider 19. The movable groove 11 and the slider 19 are coated with tungsten carbide. The fixing block 14 has multiple sizes of mounting holes to adapt to five mainstream flotation machine models. The installation offset is controlled within ±1mm, effectively reducing the vibration amplitude during operation.
[0030] Specifically, in use, the upright plate 1 is connected to the frame by bolt 2 15. Turning on the switch on the motor 3 causes the motor 3 to work and drive the rotating shaft 4 to rotate. The connecting block 2 and bolt 3 16 facilitate the limiting of the rotating shaft 4. When it is necessary to adjust the blade 10, the threaded rod 13 is rotated to move the slider 19 in the moving groove 11, thereby moving the blade 10 to make adjustment. At the same time, the adjustment height can be accurately determined by the scale plate 9, the fixing strip 17 on the blade 10, and the indicator block 8 fixed on the fixing strip 17.
[0031] The connecting structure includes a fixed post 5, a movable groove 21 on the fixed post 5, a pressure plate 20 slidably connected in the movable groove 21, a threaded post 29 rotatably connected to the upper surface of the pressure plate 20, the threaded post 29 being threadedly connected to the fixed post 5, a slider 23 slidably connected in the movable groove 21, a connecting post 6 fixedly connected to the side surface of the slider 23, a movable groove 24 on the slider 23, a slider 3 slidably connected in the movable groove 24, a slot 28 on the slider 3 27, rounded chamfers at both ends of the slot 28, a locking block 22 fixedly connected to the upper surface of the slider 3 27, a limiting block fixedly connected to the side surface of the slider 3 27, a limiting post 26 and a spring 25 fixedly connected in the movable groove 24, the other end of the spring 25 being fixedly connected to the lower surface of the slider 3 27 and located outside the slider 3 27, and the limiting post 26 located inside the spring 25.
[0032] Specifically, when disassembly is required via the connecting structure, rotate the threaded column 29 to lower the pressure plate 20, pressing the locking block 22 into the movable groove 24 and pressing the spring 25. At the same time, the limiting column 26 enters the locking groove 28 on the slider 27, allowing for disassembly and replacement. During installation, rotate the threaded column 29 to move the pressure plate 20 to the top of the movable groove 21. The slider 23 slides within the movable groove 21. When the locking block 22 moves directly below the pressure plate 20, it is released. Under the action of the spring 25, the locking block 22 returns to its original position, while the limiting block limits the slider 27 to prevent it from disengaging.
[0033] Working principle: When the blade needs to be adjusted, the screw rod 13 is rotated to make the slider 19 slide in the moving groove 11, which drives the blade 10 to move. The adjustment height can be determined by the scale plate 9 and the indicator block 18. When the whole assembly needs to be disassembled, the screw rod 29 is rotated to make the pressure plate 20 descend, which squeezes the locking block 22 into the moving groove 24 and releases the slider 23. At this time, disassembly can be performed. During installation, the screw rod 29 is rotated to make the pressure plate 20 return to its original position, and the slider 23 is inserted into the moving groove 21. Under the action of the spring 25, the locking block 22 is lifted up, and installation can be performed.
Claims
1. A discharge device for a flotation machine, characterized in that, include: A vertical plate (1) is rotatably connected to a rotating shaft (4). A connecting structure is fixedly connected to the side surface of the rotating shaft (4). A connecting column one (6) is detachably connected to the connecting structure. A connecting column two (8) is fixedly connected to the side surface of the connecting column one (6). A moving groove (11) is provided on the connecting column two (8). A slider one (19) is slidably connected in the moving groove (11). A blade (10) is fixedly connected to the side surface of the slider one (19). The blade (10) is connected to the bolt one (7) on the upper surface. A fixing strip (17) and a scale plate (9) are fixedly connected to each other. An indicator block (18) is fixedly connected to the side surface of the fixing strip (17). A fixing plate (12) is provided on the side surface of the connecting column (6). The fixing plate (12) is connected to the connecting column (6) by a bolt (7). A threaded rod (13) is threaded on the fixing plate (12). The threaded rod (13) passes through the fixing plate (12) and extends into the moving groove (11). The other end of the threaded rod (13) is rotatably connected to the slider (19).
2. The discharge device of a flotation machine according to claim 1, characterized in that, The connection structure includes a fixed column (5), on which a movable groove (21) is provided, and a pressure plate (20) is slidably connected in the movable groove (21). A threaded column (29) is rotatably connected to the upper surface of the pressure plate (20), and the threaded column (29) is threadedly connected to the fixed column (5).
3. The discharge device of a flotation machine according to claim 2, characterized in that, The movable groove (21) is slidably connected to the slider (23), and the connecting column (6) is fixedly connected to the side surface of the slider (23).
4. The discharge device of a flotation machine according to claim 3, characterized in that, The second slider (23) is provided with a movable groove (24), and the third slider (27) is slidably connected in the movable groove (24). The third slider (27) is provided with a slot (28), and the upper and lower ends of the slot (28) are provided with rounded chamfers. The upper surface of the third slider (27) is fixedly connected with a block (22), and the side surface of the third slider (27) is fixedly connected with a limit block.
5. The discharge device of a flotation machine according to claim 4, characterized in that, The movable groove 2 (24) is fixedly connected to a limiting post (26) and a spring (25). The other end of the spring (25) is fixedly connected to the lower surface of the slider 3 (27) and is located outside the slider 3 (27). The limiting post (26) is located inside the spring (25).
6. The discharge device of a flotation machine according to claim 1, characterized in that, A connecting block (2) is provided on the upper surface of the upright plate (1), and the connecting block (2) is connected to the upright plate (1) by bolt three (16).
7. The discharge device of a flotation machine according to claim 1, characterized in that, A motor (3) is fixedly connected to the side surface of the upright plate (1), and the output end of the motor (3) is fixedly connected to the rotating shaft (4), and the rotating shaft (4) is rotatably connected to the upright plate (1) and the connecting block (2).
8. The discharge device of a flotation machine according to claim 1, characterized in that, A fixing block (14) is fixedly connected to the side surface of the upright plate (1), and a bolt (15) is threadedly connected to the fixing block (14).
9. The discharge device of a flotation machine according to claim 1, characterized in that, The moving groove (11) and slider one (19) are coated with tungsten carbide.
Citation Information
Patent Citations
Ore discharge device of continuous flotation machine
CN216654946U