Composite chute of flotation machine

Abstract

The utility model discloses a compound chute of a flotation machine, which relates to the technical field of chute separation, and comprises a flotation machine main body and a main chute, an embedded chute is arranged in the main chute, the embedded chute is used for screening foam generated by the flotation machine, and the embedded chute is fixedly connected with the main chute through a suspension rod. According to the utility model, the foam produced by the flotation machine can be subjected to mass separation, so that efficient separation and split-flow transportation of different products in a flotation unit are realized, part of qualified products in roughing operation are merged into a section of refined products through the scraper at the front end, the concentrate loss can be reduced, the recovery rate is improved, the ore pulp circulation volume is reduced, and the process flow is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of chute sorting, in particular to a composite chute of a flotation machine. Background Art

[0002] Roughing is the preliminary sorting operation in the flotation process, and plays an important role in "early collection and more collection" in the entire flotation process of the ore dressing plant. Roughing operations are usually carried out in a flotation unit composed of multiple flotation machines. Affected by factors such as the feeding order and flotation time, the grades of the target elements of the products obtained from different flotation cells of the flotation unit are different. Generally, the front cell is higher than the rear cell. When the target mineral is not a single mineral and the floatability difference between the minerals is large, this difference will increase further. When the foam grade of the coarse concentrate in the front cell of the roughing flotation unit is significantly higher than that of the rear cell and is close to the concentrate grade of the first stage of the selection operation, if the obtained rough concentrate still enters the subsequent sorting according to the established process, it will affect the first stage of the selection effect, resulting in low operating efficiency and low enrichment ratio. At the same time, it will also cause unnecessary loss of the target mineral and the recovery rate is difficult to guarantee.

[0003] A Chinese patent with publication number CN214864423U discloses a foam chute structure of an aerated stirring flotation machine. The technical solution disclosed in the patent document is as follows: a flotation machine is provided, an inner circulation foam chute is provided in the upper central area inside the flotation machine, an outer circulation foam chute is provided in the upper circle inside the flotation machine, an inner connecting pipe is connected to the lowest end of the inner circulation foam chute, the lower end of the inner connecting pipe is connected to the combined foam main pipeline, two outer connecting pipes are connected at intervals at the lowest end of the outer circulation foam chute, one end of the two outer connecting pipes are connected to the combined foam main pipeline, by changing the original two inner connecting pipes into one pipe, the cross-sectional area that blocks the flotation of the foam is reduced, which is conducive to improving the sorting index; and the position where the inner connecting pipes are connected is selected at the lowest point, and there is no conflicting shear in the foam flow direction, so it is not easy to form precipitation and block the pipe. However, this technical solution may also lead to the problem that when the foam grade of the coarse concentrate in the front tank of the flotation unit is significantly higher than that in the rear tank and is close to the concentrate grade of the first stage of concentration operation, if the obtained coarse concentrate still enters the subsequent sorting according to the established process, the effect of the first stage of concentration will be affected. Utility Model Content

[0004] A technical problem solved by the utility model is that the selection effect is affected due to the different qualities of foams produced at different positions.

[0005] The technical solution adopted by the utility model is: comprising a flotation machine body and a main chute, wherein an embedded chute is arranged inside the main chute, wherein the embedded chute is used to screen the foam generated by the flotation machine, and the embedded chute is fixedly connected to the main chute through a hanging rod, thereby solving the problem that the coarse concentrate enters the subsequent sorting according to the established process, affecting the first stage of selection effect.

[0006] As a further improvement of the utility model, a plurality of scrapers are rotatably connected inside the main body of the flotation machine, a flotation machine overflow weir is arranged on the side of the scraper, a plurality of support rods are evenly arranged at the bottom end of the flotation machine overflow weir, and one end of the support rod away from the flotation machine overflow weir is fixedly connected to the outside of the main chute, so that the classified foam can be sorted accordingly and the flotation machine overflow weir can be supported.

[0007] As a further improvement of the utility model, a selection operation chute is provided at the bottom end of the opening side of the embedded chute, and an original operation chute is provided at the bottom end of the opening side of the main chute, so that the screened foam is directly transported to the operation chute of the next section.

[0008] As a further improvement of the utility model, the end of the hanging rod away from the embedded chute is fixedly connected to a limit block, and the limit block is provided with a limit hole on a side close to the outer side of the main chute, so that the embedded chute and the main chute can be welded.

[0009] As a further improvement of the utility model, the wall surface of one end of the embedded chute is in contact with the lower end of the overflow weir of the flotation machine, and the outer wall of the embedded chute is spaced a certain distance from the inner wall of the main chute. The distance between the outer wall of the embedded chute and the inner wall of the main chute is 12cm-18cm, so that the product transportation of the embedded chute and the main chute will not affect each other.

[0010] As a further improvement of the present invention, the bottom plates of the embedded chute and the main chute have a certain inclination angle, and the flow blocking surfaces of the embedded chute and the main chute have a certain height spacing. The inclination angle is 12°-18°, and the spacing is 45cm-55cm, so as to prevent foam from accumulating in the chute.

[0011] As a further improvement of the present invention, the hanging rod is a triangular structure, and the limiting hole is welded on the outer wall of the main chute, so that the position of the embedded chute can be determined according to actual conditions.

[0012] As a further improvement of the utility model, the embedded chute is fixed inside the trough cavity of the main chute in a hanging manner, so that the foam can be separated up and down.

[0013] The utility model has the following beneficial effects: 1. Through the scraper, the flotation machine overflow weir, the embedded chute and the main chute, the front and rear scrapers respectively scrape the relatively high-grade roughing foam and the relatively low-grade roughing foam into the front and rear slots of the flotation machine overflow weir. Since the front slot is connected to the embedded chute and the rear slot is connected to the main chute, the foam produced by the flotation machine can be sorted by quality, thereby realizing efficient separation and diversion transportation of different products in the flotation unit, and some qualified products in the roughing operation are incorporated into a section of selected products through the front scraper, which can reduce the loss of concentrate, improve the recovery rate, reduce the amount of slurry circulation, and optimize the process flow. Moreover, the foam quality after screening is better, which can ensure the quality of subsequent products and improve the market competitiveness of products. Screening can also reduce the generation of waste, reduce the impact on the environment, and meet the requirements of sustainable development.

[0014] 2. Through the hanging rod, the limit block and the limit hole, the hanging rod can be fixedly connected to the embedded chute, and then the limit block and the limit hole can be welded to different positions on the outer surface of the main chute, so that the position of the embedded chute can be adjusted as needed. By adjusting the position of the embedded chute, the flow direction and speed of the material in the chute can be more accurately controlled, thereby optimizing the diversion effect of the material. In addition, the reasonable adjustment of the position of the embedded chute can reduce the resistance of the material in the chute and reduce the energy consumption during the transportation process. By optimizing the position of the embedded chute, the impact and friction of the material in the chute can also be reduced, reducing the wear of the equipment and improving the stability and life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the overflow weir, the embedded chute and the main chute of the flotation machine in the utility model.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the overflow weir, embedded chute and main chute of the flotation machine in the utility model from another angle.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the embedded chute, the hanging rod and the main chute in the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the suspension rod, the limiting block and the limiting hole in the utility model.

[0020] Figure 6 It is a side structural schematic diagram of the embedded chute and the main chute in the utility model.

[0021] As shown in the figure: 1, flotation machine body; 2, scraper; 3, flotation machine overflow weir; 4, embedded chute; 5, hanging rod; 6, main chute; 7, selection operation chute; 8, original operation chute; 9, support rod; 10, limit block; 11, limit hole. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] As shown in the figure, a composite chute of a flotation machine includes a flotation machine body 1, a scraper 2, a flotation machine overflow weir 3, a support rod 9, a main chute 6, a hanging rod 5, and an embedded chute 4.

[0024] According to the difference in the grade of the rough concentrate obtained from different flotation cells in the roughing flotation unit, a suitable embedded chute 4 is arranged inside the main chute 6. Taking the rough concentrate grades (especially the target element grades) of the first and second flotation cells as meeting the requirements as an example, when each cell operates normally, the rough concentrate foam of the first and second cells is scraped to the inside of the embedded chute 4 by the front scraper 2 through the flotation machine overflow weir 3, and is transported to the selection operation chute 7 adjacent to the roughing chute under the flushing effect of the added water. The rough concentrate foam of the third and subsequent cells normally enters the main chute 6 of the roughing flotation unit through the rear scraper 2, and is transported to the original operation chute 8 adjacent to the roughing chute under the flushing effect of the added water, thereby realizing the efficient separation of the rough concentrate foam, reducing the loss of concentrate, and reducing the slurry circulation amount to a certain extent, which can not only ensure the concentrate grade, but also improve the total recovery rate of the concentrate.

[0025] Furthermore, a selection operation chute 7 is provided at the bottom end of the opening side of the embedded chute 4, and an original operation chute 8 is provided at the bottom end of the opening side of the main chute 6. The end of the hanging rod 5 away from the embedded chute 4 is fixedly connected to a limit block 10, and the limit block 10 is provided with a limit hole 11 on the side close to the outer side of the main chute. After the embedded chute 4 is manually adjusted to a suitable position, the limit hole 11 is welded to the outer side of the main chute 6 by welding, so that the user can adjust the position of the embedded chute 4 to a more suitable place. By adjusting the position of the embedded chute 4, the flow direction and speed of the material in the chute can be more accurately controlled, thereby optimizing the diversion effect of the material. Moreover, reasonable adjustment of the position of the embedded chute 4 can reduce the resistance of the material in the chute and reduce the energy consumption during transportation.

[0026] Furthermore, since the wall surface of one end of the embedded chute 4 is in contact with the lower end of the overflow weir 3 of the flotation machine, and the outer wall of the embedded chute 4 is 15 cm away from the inner wall of the main chute 6, the product transportation of the embedded chute 4 and the main chute 6 will not affect each other. Since the bottom plates of the embedded chute 4 and the main chute 6 have a certain inclination angle, and the flow blocking surfaces of the embedded chute 4 and the main chute 6 have a certain height distance, it can prevent foam from accumulating in the tank.

[0027] Furthermore, since the hanging rod 5 is a triangular structure and the limiting hole 11 is welded on the outer wall of the main chute 6, the position of the embedded chute 4 can be determined according to the actual situation. The embedded chute 4 is fixed inside the trough cavity of the main chute 6 by hanging. In this way, the foam can be separated up and down. The triangular connection structure can provide good rigidity, prevent relative movement or distortion between the trough bodies, and make the connection more stable and reliable. Moreover, compared with other forms of connection structures, the triangular connection structure can usually use less material to achieve the same or even higher connection strength, thereby saving costs and material resources.

[0028] The advantages of the utility model are: 1) The quality of the foam produced by the flotation machine can be screened, thereby realizing the efficient separation and diversion transportation of different products in the flotation unit, and incorporating some qualified products in the roughing operation into the first-stage fine selection product, which can reduce the concentrate loss, improve the recovery rate, reduce the slurry circulation volume, and optimize the process flow. 2) The foam quality after screening is better, which can ensure the quality of subsequent products and improve the market competitiveness of products. Screening can also reduce the generation of waste, reduce the impact on the environment, and meet the requirements of sustainable development. 3) By adjusting the embedded chute 4, the flow direction and speed of the material in the chute can be more accurately controlled, thereby optimizing the diversion effect of the material. Moreover, the reasonable adjustment of the position of the embedded chute 4 can reduce the resistance of the material in the chute and reduce the energy consumption during the transportation process. 4) Solve the problem that the coarse concentrate enters the subsequent sorting according to the established process, affecting the first-stage fine selection effect.

[0029] Those skilled in the art should be aware that the protection scheme of the present utility model is not limited to the above-mentioned embodiments, and various arrangements, combinations and transformations can be made on the basis of the above-mentioned embodiments. Without violating the spirit of the present utility model, various transformations of the present utility model fall within the protection scope of the present utility model.

Claims

1. A composite chute of a flotation machine, comprising a flotation machine body (1) and a main chute (6), characterized in that: An embedded chute (4) is arranged inside the main chute (6), and the embedded chute (4) is used to classify and collect foam generated by the flotation machine. The embedded chute (4) is fixedly connected to the main chute (6) via a hanging rod (5).

2. A composite chute for a flotation machine according to claim 1, characterized in that: A plurality of scrapers (2) are rotatably connected inside the flotation machine body (1), a flotation machine overflow weir (3) is arranged on the side of the scraper (2), a plurality of support rods (9) are evenly arranged at the bottom end of the flotation machine overflow weir (3), and one end of the support rod (9) away from the flotation machine overflow weir (3) is fixedly connected to the outside of the main chute (6).

3. The composite chute of a flotation machine according to claim 1, characterized in that: A selection operation chute (7) is provided at the bottom end of the opening side of the embedded chute (4), and an original operation chute (8) is provided at the bottom end of the opening side of the main chute (6).

4. The composite chute of a flotation machine according to claim 1, characterized in that: One end of the suspension rod (5) away from the embedded chute (4) is fixedly connected to a limit block (10), and a limit hole (11) is provided on a side of the limit block (10) close to the outer side of the main chute (6).

5. The composite chute of a flotation machine according to claim 1, characterized in that: One end wall surface of the embedded chute (4) is in contact with the lower end of the overflow weir (3) of the flotation machine, and a certain distance exists between the outer wall of the embedded chute (4) and the inner wall of the main chute (6).

6. The composite chute of a flotation machine according to claim 1, characterized in that: The bottom plates of the embedded chute (4) and the main chute (6) have a certain inclination angle, and the flow-blocking surfaces of the embedded chute (4) and the main chute (6) have a certain distance in height.

7. A composite chute for a flotation machine according to claim 4, characterized in that: The hanging rod (5) is a triangular structure, and the limiting hole (11) is welded to the outer wall of the main chute (6).

8. The composite chute of a flotation machine according to claim 1, characterized in that: The embedded chute (4) is fixed inside the chute cavity of the main chute (6) in a hanging manner.

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