A self-suction flotation machine

Abstract

The utility model discloses a self -priming type flotation machine belongs to flotation machine technical field, including the flotation machine body, the flotation tank is provided with the flotation machine body top, the one side of flotation machine body upper portion is provided with the adjusting mechanism, the driving mechanism is provided with the output above adjusting mechanism, the output of driving mechanism is provided with the ladder scraper subassembly, the ladder scraper subassembly sets up inside the top of flotation tank, effectively solved the traditional plane scraper bubble scraping single, low adhesion foam recovery capacity problem, has improved the foam scraping efficiency and mineral recovery rate, also reduced the risk of useful mineral with the risk of froth adhesion deficiency and with slurry loss.

Description

Technical Field

[0001] This utility model belongs to the field of flotation machine technology, specifically a self-priming flotation machine. Background Technology

[0002] Laboratory miniature flotation machines are commonly used equipment in laboratory mineral processing research. Their main function is to simulate the flotation process of ore pulp, separating useful minerals from tailings through the action of scrapers and bubbles. Miniature flotation machines can control ore pulp concentration, bubble generation, and bubble scraping process under experimental conditions, enabling the analysis and evaluation of ore flotation performance and providing a reliable basis for mineral processing design, reagent optimization, and mineral recovery rate research.

[0003] Chinese utility model patent CN210585399U discloses an automatic water replenishment device for a laboratory flotation machine. This device includes a water tank, a normally closed solenoid valve, wires, an electromagnetic relay, a conduit, an ultrasonic level sensor, and a control panel. The water tank is installed above the flotation machine's protective cover. One end of the conduit is connected to the water tank, and the other end extends above the flotation cell. The normally closed solenoid valve is connected in series in the middle of the conduit. The ultrasonic level sensor is located on the panel above the scraper section, directly facing the liquid surface in the flotation cell, enabling automatic level detection and water replenishment. This device solves the problem of cumbersome water replenishment operations during startup and after flotation frothing in laboratory flotation machines, ensuring excellent performance indicators in laboratory mineral processing, improving operator efficiency, saving time, and demonstrating high efficiency, durability, and promising application prospects.

[0004] However, the scraper in this patented device still adopts a traditional planar structure, the foam scraping process is simple, and the recovery capacity of low-adhesion foam is insufficient, resulting in the easy loss of useful minerals with the slurry. Utility Model Content

[0005] The purpose of this invention is to provide a self-priming flotation machine to solve at least one aspect of the problems and defects mentioned in the background art.

[0006] A self-priming flotation machine is provided, including a flotation machine body, a flotation cell disposed above the flotation machine body, an adjustment mechanism disposed on one side of the upper part of the flotation machine body, a drive mechanism disposed above the adjustment mechanism, and a stepped scraper assembly disposed at the output end of the drive mechanism, the stepped scraper assembly being disposed on the flotation cell.

[0007] Furthermore, the adjustment mechanism includes an adjustment groove, which is disposed above the flotation machine body. The adjustment groove is slidably connected to a mounting base, which has a through hole and an adjustment bolt for locking the mounting base. A drive mechanism is disposed on one side of the upper part of the mounting base.

[0008] Furthermore, the driving mechanism includes a drive motor, which is mounted on a mounting base. The mounting base has a rotating shaft, and a connecting rod is fixedly connected to the rotating shaft. A stepped scraper assembly is mounted on the connecting rod.

[0009] Furthermore, the connecting rod is provided with a connecting hole, and the stepped scraper assembly is detachably connected to the connecting hole by a fastening screw.

[0010] Furthermore, the stepped scraper assembly includes a stepped shaft plate, which is detachably connected to the connecting rod by fastening bolts passing through the connecting holes. The stepped shaft plate is provided with a first stepped scraper, a second stepped scraper, and a third stepped scraper at equal intervals along its length.

[0011] Furthermore, the height of the first stepped scraper is 15~30mm.

[0012] Furthermore, the heights of the first, second, and third stepped scrapers decrease by 3-5 mm in sequence.

[0013] Furthermore, the first, second, and third stepped scrapers are all provided with rubber layers on both sides of their upper part.

[0014] Furthermore, the upper part of the first stepped scraper, the second stepped scraper, and the third stepped scraper are all provided with V-shaped grooves.

[0015] Furthermore, the first, second, and third stepped scrapers are all provided with weight reduction holes at their upper parts.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The adjustment mechanism is used to adjust the height of the stepped scraper assembly in the flotation cell, allowing the assembly to flexibly maintain a reasonable contact position with the froth interface according to changes in the froth layer thickness during flotation. This avoids insufficient froth removal or entrainment of slurry due to the scraper being too high or too low. The rotating scraper not only improves froth collection efficiency but also ensures the stability and continuity of the froth removal process. The stepped scraper adopts a multi-stage stepped structure, which increases the overall froth-coating area of ​​the scraper and improves the contact probability between the scraper and the froth, thereby increasing the recovery rate of valuable minerals carried out with the froth. By setting up the stepped scraper assembly, the problems of single froth removal and insufficient froth recovery capacity of traditional flat scrapers are effectively solved, improving froth removal efficiency and mineral recovery rate, and reducing the risk of valuable minerals being lost with the slurry due to insufficient froth adhesion. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of a self-priming flotation machine provided by this utility model.

[0019] Figure 2 A schematic diagram of the drive mechanism provided by this utility model.

[0020] Figure 3 A schematic diagram of the structure of the stepped scraper assembly provided by this utility model.

[0021] Figure 4 A schematic diagram of the connecting rod structure provided by this utility model.

[0022] In the diagram: 1. Flotation machine body; 2. Flotation cell; 3. Adjustment mechanism; 31. Adjustment tank; 32. Mounting base; 321. Through hole; 33. Adjustment bolt; 4. Drive mechanism; 41. Drive motor; 42. Rotary shaft; 43. Connecting rod; 431. Connecting hole; 5. Stepped scraper assembly; 51. Stepped shaft plate; 52. First step scraper; 53. Second step scraper; 54. Third step scraper; 6. Rubber layer; 7. V-groove; 8. Weight reduction hole; 9. Tray. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-4 As shown in the embodiment of this utility model, a self-priming flotation machine includes a flotation machine body 1, a flotation cell 2 is provided above the flotation machine body 1, an adjustment mechanism 3 is provided on one side of the upper part of the flotation machine body 1, a drive mechanism 4 is provided above the adjustment mechanism 3, a stepped scraper assembly 5 is provided at the output end of the drive mechanism 4, the stepped scraper assembly 5 is provided inside the upper part of the flotation cell 2, and the drive mechanism 4 provides rotational power to the stepped scraper assembly 5, so that the stepped scraper assembly 5 continuously scrapes bubbles along the surface of the slurry in the flotation cell 2; The adjusting mechanism 3 is used to adjust the height position of the stepped scraper assembly 5 in the flotation cell 2, so that the stepped scraper assembly 5 can flexibly maintain a reasonable contact position with the foam interface according to the change of the foam layer thickness in the flotation cell 2 during the flotation process. This avoids the stepped scraper assembly 5 being too high or too low, which would lead to insufficient foam scraping or entrainment of slurry. The driving mechanism 4 rotates the stepped scraper assembly 5, which not only improves the foam collection efficiency, but also ensures the stability and continuity of the foam scraping process. The stepped scraper assembly 5 adopts a multi-stage stepped structure. The stepped structure of the stepped scraper assembly 5 increases the foam hanging area of ​​the scraper, increases the contact probability between the scraper and the foam, and thus improves the recovery rate of useful minerals carried out with the foam. By setting the stepped scraper assembly 5, the problems of single foam scraping and insufficient foam recovery capacity of traditional flat scrapers are effectively solved, improving the foam scraping efficiency and mineral recovery rate, and reducing the risk of useful minerals being lost with the slurry due to insufficient foam adhesion.

[0030] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the adjustment mechanism 3 includes an adjustment groove 31, which is located above the flotation machine body 1. A mounting base 32 is slidably connected to the adjustment groove 31. A through hole 321 is provided on the mounting base 32, and an adjustment bolt 33 for locking the mounting base 32 is provided on the through hole 321. A drive mechanism 4 is provided on one side of the upper part of the mounting base 32. Several longitudinally arranged adjustment grooves 31 are provided above the flotation machine body 1. The mounting base 32 and the adjustment grooves 31 form a sliding fit relationship. A through hole 321 is machined in the middle of the mounting base 32, and the adjustment bolt 33... 3. The mounting base 32 is fixed to the adjusting groove 31 on the flotation machine body 1 by passing through the through hole 321 and tightening it, thereby realizing the adjustable locking of the mounting base 32. When using it, the operator can first loosen the adjusting bolt 33 and push the mounting base 32 to move in the adjusting groove 31, so that the drive mechanism 4 and the stepped scraper assembly 5 are at the required height position; then tighten the adjusting bolt 33 again to complete the fixation. It can flexibly adjust the position of the drive mechanism 4 and its stepped scraper assembly 5 under different foam thicknesses and different flotation conditions, ensuring that the foam scraping process is efficient and reliable.

[0031] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the drive mechanism 4 includes a drive motor 41, which is mounted on a mounting base 32. A rotating shaft 42 is mounted on the mounting base 32, and a connecting rod 43 is fixedly connected to the rotating shaft 42. A stepped scraper assembly 5 is mounted on the connecting rod 43. During operation, the drive motor 41 is energized and starts, and the output torque is transmitted to the rotating shaft 42 via a coupling. The rotating shaft 42 drives the connecting rod 43 and the stepped scraper assembly 5 to rotate synchronously. During the rotation, the stepped scraper assembly 5 contacts foam layers of different thicknesses in the flotation cell 2. The lower step of the stepped scraper assembly 5 receives thick foam, and the upper step of the stepped scraper assembly 5 receives thin foam, realizing multi-level foam scraping and foam hanging, which greatly improves the collection efficiency of useful mineral foam during the flotation process.

[0032] In one embodiment, see Figure 2 , Figure 3 and Figure 4As shown, the connecting rod 43 is provided with a connecting hole 431. The stepped scraper assembly 5 is detachably connected to the connecting hole 431 by a fastening screw. The end of the connecting rod 43 is provided with a connecting hole 431 through the axial direction. The mounting end of the stepped scraper assembly 5 matches the connecting hole 431 and is fixed by a fastening screw. During operation, if the stepped scraper assembly 5 needs to be replaced, simply loosen the fastening screw to remove the original stepped scraper assembly 5, then install the new stepped scraper assembly 5 into the connecting hole 431 and retighten the screw. Before tightening the fastening screw, the operator can finely adjust the mounting angle of the stepped scraper assembly 5 along the circumferential direction of the connecting hole 431. After adjusting to the appropriate angle, tighten the fastening screw to fix it.

[0033] In one embodiment, see Figure 2 and Figure 3 As shown, the stepped scraper assembly 5 includes a stepped shaft plate 51, which is detachably connected to the connecting rod 43 via fastening bolts passing through the connecting hole 431. The stepped shaft plate 51 has a first stepped scraper 52, a second stepped scraper 53, and a third stepped scraper 54 arranged along its length. The first stepped scraper 52, the second stepped scraper 53, and the third stepped scraper 54 are fixed sequentially along the length of the stepped shaft plate 51, forming a height difference between each stepped scraper. In use, the foam in the flotation cell flows with the slurry to the scraper position. The thicker foam at the bottom is scraped by the first stepped scraper 52, the middle layer foam is collected by the second stepped scraper 53, and the thinner, lighter foam at the top is received by the third stepped scraper 54, thus achieving comprehensive collection of foam at different levels. Furthermore, since the stepped shaft plate 51 and the connecting rod 43 are detachably connected, the operator can replace the stepped scraper assembly 5 with different structures according to the foam properties or flotation conditions, or adjust its installation angle appropriately to ensure the efficiency and adaptability of the foam scraping process.

[0034] In one embodiment, see Figure 2 and Figure 3 As shown, the height of the first-step scraper 52 is 15~30mm. In the flotation cell 2, the bottom froth often has high density, high thickness, and high mineral content. By setting the height of the first-step scraper 52 between 15~30mm, sufficient three-dimensional space can be formed to effectively receive and scrape the thick froth, avoiding the loss of the thick froth with the slurry due to insufficient adhesion. If the first-step scraper 52 is too low (<15mm), the receiving space is insufficient, and the thick froth is easily crushed during the scraping process, resulting in the loss of the useful minerals carried by the froth. If the first-step scraper 52 is too high (>30mm), it may cause the contact angle between the scraper and the froth layer to be too large, resulting in disturbance and froth breakage. Therefore, the height range of 15~30mm ensures that the thick froth can be fully contacted while maintaining good integrity.

[0035] In one embodiment, see Figure 1 , Figure 2and Figure 3 As shown, the heights of the first stepped scraper 52, the second stepped scraper 53, and the third stepped scraper 54 decrease by 3-5mm sequentially. In one specific embodiment, the stepped scraper assembly 5 includes a first stepped scraper 52, a second stepped scraper 53, and a third stepped scraper 54 arranged sequentially along the length of the stepped shaft plate 51. The installation distance between the first stepped scraper 52, the second stepped scraper 53, and the third stepped scraper 54 is 20mm to ensure that the scrapers do not interfere with each other when rotating to scrape bubbles. In one specific embodiment, the height of the first-step scraper 52 is designed to be at its maximum value, for example, the height distance of the first-step scraper 52 is 25mm. The height of the second-step scraper 53 decreases by 3~5mm from this, such as 21~22mm. The height of the third-step scraper 54 decreases by another 3~5mm, such as 17~19mm. In actual operation, when the drive mechanism 4 drives the stepped scraper assembly 5 to rotate, the first-step scraper 52 picks up the thick bubbles at the bottom of the liquid surface of the flotation cell 2; the second-step scraper 53 captures medium-thickness foam; and the third-step scraper 54 collects the upper layer of thin foam. The arrangement of the stepped scrapers in a layered and decreasing manner ensures that foam of different thicknesses is scraped off in sequence, avoiding insufficient foam hanging or foam breaking caused by the height limitation of a single scraper, thereby improving the foam collection efficiency and mineral recovery rate of the flotation machine.

[0036] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, rubber layers 6 are provided on both sides of the upper part of the first-step scraper 52, the second-step scraper 53, and the third-step scraper 54. During operation, the stepped scraper assembly 5 rotates together with the connecting rod 43. When the rubber layers 6 on both sides of the scraper are close to or slightly in contact with the inner wall of the flotation cell 2, they can play a buffering and protective role, avoiding hard friction between the metal parts and the wall of the flotation cell 2. At the same time, the rubber layers 6 can also help stabilize the running posture of the scraper during the foam scraping process, making the foam scraping process more gentle and improving the efficiency of foam collection and mineral recovery rate.

[0037] In one embodiment, see Figure 1 , Figure 3 and Figure 4 As shown, the upper part of the first-step scraper 52, the second-step scraper 53, and the third-step scraper 54 are all provided with V-shaped grooves 7. The V-shaped grooves 7 can form a concave area when the scraper comes into contact with the foam, so that the foam is partially embedded in the groove during the scraping process, thereby increasing the residence time of the foam on the scraper and improving the foam adhesion ability. The groove structure of the V-shaped grooves 7 can guide the scraped foam, so that the foam is concentrated and guided to the collection area along the groove line, avoiding the disorderly sliding of the foam on the surface of the first-step scraper 52, the second-step scraper 53, and the third-step scraper 54, and improving the foam collection efficiency.

[0038] In one embodiment, see Figure 1 and Figure 2 As shown, the first-step scraper 52, the second-step scraper 53, and the third-step scraper 54 are all provided with weight-reducing holes 8. Two to three elliptical weight-reducing holes 8 are evenly opened on the upper part of the first-step scraper 52, the second-step scraper 53, and the third-step scraper 54. When in use, the stepped scraper assembly 5 rotates with the drive mechanism 4. The weight-reducing holes 8 not only reduce the weight of the scraper assembly, making the drive motor 41 run more effortlessly, but also form a liquid flow channel during rotation, so that the foam and slurry are diverted to a certain extent, reducing the risk of foam breakage. In one embodiment, see Figure 1 and Figure 2 As shown, a tray 9 is also provided above the flotation machine body 1. The tray 9 is located below the discharge port of the flotation cell 2 and can directly receive the foam scraped off by the scraper and the slurry flowing out with the foam, preventing it from overflowing or dripping onto the outside of the equipment and keeping the working area clean.

[0039] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A self-priming flotation machine, comprising a flotation machine body (1), wherein a flotation tank (2) is disposed above the flotation machine body (1), characterized in that, An adjustment mechanism (3) is provided on one side of the upper part of the flotation machine body (1), and a drive mechanism (4) is provided above the adjustment mechanism (3). A stepped scraper assembly (5) is provided at the output end of the drive mechanism (4), and the stepped scraper assembly (5) is located inside the flotation cell (2) above it.

2. The self-priming flotation machine according to claim 1, characterized in that, The adjustment mechanism (3) includes an adjustment groove (31), which is located above the flotation machine body (1). The adjustment groove (31) is slidably connected to a mounting base (32). The mounting base (32) has a through hole (321) and an adjustment bolt (33) for locking the mounting base (32) is provided on the through hole (321). A drive mechanism (4) is provided on one side of the upper part of the mounting base (32).

3. A self-priming flotation machine according to claim 2, characterized in that, The drive mechanism (4) includes a drive motor (41), which is mounted on a mounting base (32). A rotating shaft (42) is mounted on the mounting base (32), and a connecting rod (43) is fixedly connected to the rotating shaft (42). A stepped scraper assembly (5) is mounted on the connecting rod (43).

4. A self-priming flotation machine according to claim 3, characterized in that, The connecting rod (43) is provided with a connecting hole (431), and the stepped scraper assembly (5) is detachably connected to the connecting hole (431) by a fastening screw.

5. A self-priming flotation machine according to claim 4, characterized in that, The stepped scraper assembly (5) includes a stepped shaft plate (51), which is detachably connected to the connecting rod (43) by fastening bolts passing through the connecting hole (431). The stepped shaft plate (51) is provided with a first stepped scraper (52), a second stepped scraper (53) and a third stepped scraper (54) at equal intervals along the length direction.

6. A self-priming flotation machine according to claim 5, characterized in that, The height of the first stepped scraper (52) is 15~30mm.

7. A self-priming flotation machine according to claim 5, characterized in that, The heights of the first stepped scraper (52), the second stepped scraper (53), and the third stepped scraper (54) decrease by 3-5 mm in sequence.

8. A self-priming flotation machine according to claim 5, characterized in that, The first stepped scraper (52), the second stepped scraper (53) and the third stepped scraper (54) are all provided with rubber layers (6) on both sides of the upper part.

9. A self-priming flotation machine according to claim 8, characterized in that, The upper part of the first stepped scraper (52), the second stepped scraper (53) and the third stepped scraper (54) are all provided with V-shaped grooves (7).

10. A self-priming flotation machine according to claim 9, characterized in that, The first stepped scraper (52), the second stepped scraper (53) and the third stepped scraper (54) are all provided with weight reduction holes (8) on the upper part.

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