A micro-fine ore particle flotation mineralization device using a moving component to induce micro-vortex in a pipe

Abstract

The application discloses a fine mineral particle flotation mineralization device using a moving part to induce micro eddy in a pipe, which comprises a plurality of vortex generators arranged on the axis of the pipe and capable of rotating, the rotating direction of the vortex generators is tangent to the direction of water flow in the pipe, the vortex generator comprises a rotating shaft fixed on the inner wall of the pipe and perpendicular to the flowing direction of the mineral slurry, the middle part of the rotating shaft is rotationally connected with a main suspension plate, the front and rear ends of the main suspension plate are respectively provided with a front support plate and a rear support plate, the front support plate forms a 120° angle with the upper end surface of the main suspension plate, and the rear support plate forms a 120° angle with the lower end surface of the main suspension plate. The vortex generator can build a controllable vortex field and improve the turbulence intensity, can build a suitable reinforced vortex field according to different diameters of the fine particles, can strengthen the vortex at the center of the pipe, can realize the recovery of the fine mineral particles, and can reduce the abrasion of the equipment and the cost.

Description

Technical Field

[0001] This invention relates to the field of eddy current generators, and more specifically to a flotation mineralization device for fine mineral particles that utilizes moving parts to induce micro-vortices within a tube. Background Technology

[0002] Given the finite nature of global energy resources and the need for sustainable energy development, the separation and recovery of fine-grained minerals is essential. Fine-grained minerals are primarily formed due to the excessively small particle size of valuable minerals requiring fine grinding, or due to over-grinding of coarse-grained minerals. Compared to coarse-grained minerals, these fine-grained minerals are significantly more difficult to separate and recover, and many are discarded due to their inability to be recovered or the high difficulty of recovery, resulting in energy waste. Currently, flotation is considered a relatively effective method for the separation and recovery of fine-grained minerals.

[0003] Flotation primarily addresses the separation of fine particles by enhancing the turbulence intensity of the flotation device. Common turbulence enhancement devices include elliptical, trapezoidal, triangular, and rectangular shapes installed on the pipe wall. When fluid passes through these mineralization pipes, it contacts the vortex generators on the pipe wall, generating vortices and thus enhancing turbulence. While these methods are widely used, they also have drawbacks. First, these vortex generators are all fixed to the wall and cannot enhance the turbulence at the center of the pipe, meaning that the separation and recovery of fine particles at the center is somewhat insufficient, reducing flotation efficiency. Second, in the actual process of fine particle separation, it is necessary to separate and recover fine particles of different sizes, which requires enhancing turbulence to varying intensities. To achieve this, vortex generators of different sizes are needed, necessitating the manufacture of vortex generators of various sizes and dimensions, increasing costs and time and labor. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the present invention aims to provide a micro-fine mineral particle flotation mineralization device that utilizes moving parts to induce micro-vortices within the tube. This device can improve turbulence intensity, reduce the lower limit of floatable particle size, and increase the recovery rate of fine particles without requiring additional energy consumption.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This invention provides a flotation mineralization device for fine mineral particles that utilizes moving parts to induce micro-vortices within a pipe. It includes several vortex generators mounted on the central axis of the pipe and capable of rotation. The rotation direction of each vortex generator is tangential to the direction of water flow within the pipe. Each vortex generator includes a rotating shaft fixed to the inner wall of the pipe and perpendicular to the direction of slurry flow. A main suspension plate is rotatably connected to the middle of the rotating shaft. A front support plate and a rear support plate are respectively provided at the front and rear ends of the main suspension plate. The front support plate forms an angle 'a' with the upper surface of the main suspension plate, and the rear support plate forms an angle 'b' with the lower surface of the main suspension plate.

[0007] Preferably, both angle a and angle b are 120°.

[0008] Preferably, the main suspension plate, the front support plate, and the rear support plate are all rectangular plates with the same width.

[0009] Preferably, the front support plate and the rear support plate have the same length.

[0010] Preferably, the eddy current generators are arranged uniformly along the central axis of the pipe.

[0011] Preferably, the main suspension plate has a through hole for the rotating shaft to pass through, and the rotating shaft is provided with a limiting block to restrict the movement of the main suspension plate along its length direction.

[0012] Preferably, there are two rotating shafts, and two grooves corresponding to the rotating shafts are provided on both sides of the main suspension plate for embedding. The rotating shafts are also provided with limiting blocks to restrict the movement of the main suspension plate along its length direction.

[0013] Preferably, the inner diameter D of the pipe is 9.5-10.5 mm, the main suspension plate of the eddy current generator is 0.46 D in length, 0.05 D in thickness, and 0.5 D in width, and the front support plate and the rear support plate are both 0.23 D in length, 0.05 D in thickness, and 0.5 D in width.

[0014] The beneficial effects of this invention are as follows: By designing the structure of the vortex generator inside the mineralization pipe, this invention creates a controllable vortex field, improving turbulence intensity. It can not only create suitable enhanced vortex fields according to different fine particle diameters, but also strengthen the vortex at the center of the pipe. This reduces equipment wear and lowers costs while achieving high fine-particle mineral recovery rates. Furthermore, the equipment has a simple structure, small size, is easy to install, and has low cost, enabling long-term stable operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a micro-fine mineral particle flotation mineralization device that utilizes a moving component to induce micro-vortices inside the tube, provided by an embodiment of the present invention.

[0017] Figure 2 A top view of a micro-fine mineral particle flotation mineralization device that utilizes a moving component to induce micro-vortices within a tube, provided in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the installation position of the rotating shaft provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Pipeline; 2. Vortex generator; 20. Rotating shaft; 21. Main suspension plate; 22. Front support plate; 23. Rear support plate; 24. Limiting block. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 3 As shown, a micro-fine mineral particle flotation mineralization device that utilizes moving parts to induce micro-vortices within a pipe includes 15 vortex generators 2 uniformly arranged on the central axis of a pipe 1 and capable of rotation. The rotation direction of the vortex generators 2 is tangential to the direction of water flow within the pipe. Each vortex generator 2 includes a rotating shaft 20 fixed to the inner wall of the pipe 1. A main suspension plate 21 is rotatably connected to the middle of the rotating shaft 20. The main suspension plate 21 is rectangular, with a length of 4.6 mm, a width of 5 mm, and a thickness of 0.5 mm. Rectangular front support plates 22 and rear support plates 23 are respectively provided at the front and rear ends of the main suspension plate 21. Both the front support plate 22 and the rear support plate 23 are rectangular plates with a length of 2.3 mm, a width of 5 mm, and a thickness of 0.5 mm. The front support plate 22 forms a 120° angle with the upper end face of the main suspension plate 21, and the rear support plate 23 also forms a 120° angle with the lower end face of the main suspension plate 21. Each vortex generator 2 is fixed by a rotating shaft 20 passing through its center and perpendicular to the slurry flow direction, such that the rotation direction of the vortex generator 2 is tangential (same) as the slurry flow direction. By adjusting the slurry flow rate, the rotational speed of the vortex generator 2 is adjusted, thereby adjusting the turbulence intensity of the vortex field and achieving a controllable vortex field.

[0023] The rotating shaft 20 is provided in two places. The main suspension plate 21 has two grooves on both sides that correspond to the rotating shaft 20 and are for embedding. The rotating shaft 20 is also provided with a limiting block 24 to restrict the main suspension plate 21 from moving along its length direction.

[0024] Working principle of the eddy current generator: Assuming the mineralization pipe is placed horizontally, the slurry enters the pipe from the left and flows out from the right. The slurry in the pipe has a certain velocity. When it passes through the eddy current generator 2, its own velocity can drive the eddy current generator 2 to rotate with the water flow. At this time, the rotation speed of the positive eddy current generator 2 can be adjusted by adjusting the flow rate of the slurry, which in turn affects the turbulence intensity generated by the eddy current generator 2. That is, a controllable microflow field can be created. The slurry flow rate can be adjusted according to the turbulence intensity required by different diameters of fine particles, so as to improve the flotation rate and recovery rate of fine particles, reduce the impact of the slurry on the eddy current generator, reduce wear, and reduce costs. Because of the irregular structure of the eddy current generator and its ability to rotate with the slurry, it generates shear stress on the slurry at the contact surface, resulting in strong turbulence. This increases the pulsating velocity and kinetic energy of the particles in the slurry, increasing the collision frequency and adhesion probability between them and the bubbles. On the other hand, the strong shearing effect in the turbulence also causes the bubbles to break down into smaller pieces, increasing the bubble concentration in the slurry and increasing the collision frequency between particles and bubbles, thereby improving the recovery rate of fine particles.

[0025] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A micro-fine ore particle flotation mineralization apparatus using a moving part to induce micro-vortexes in a pipe, characterized by: The application relates to a vortex generator (2) arranged on the axis of a pipeline (1) and capable of rotating, the rotating direction of the vortex generator (2) being tangent to the direction of water flow in the pipeline, the vortex generator (2) comprising a rotating shaft (20) fixed on the inner wall of the pipeline (1) and perpendicular to the direction of ore pulp flow, the middle part of the rotating shaft (20) being rotationally connected with a main suspension plate (21), the front and rear ends of the main suspension plate (21) being respectively provided with a front support plate (22) and a rear support plate (23), the front support plate (22) being at an a angle with the upper end surface of the main suspension plate (21), and the rear support plate (23) being at a b angle with the lower end surface of the main suspension plate (21). The a angle and the b angle are both 120-degree angles. The main suspension plate (21), the front support plate (22) and the rear support plate (23) are all rectangular plates with the same width. The pipeline (1) has an inner diameter D, the length of the main suspension plate (21) of the vortex generator (2) is 0.46D, the thickness is 0.05D, and the width is 0.5D, the length of the front support plate (22) and the rear support plate (23) is both 0.23D, the thickness is both 0.05D, and the width is both 0.5D.

2. A micro-fine ore particle flotation mineralization apparatus using a moving member to induce micro-vortexes in a pipe according to claim 1, characterized in that: The length of the front support plate (22) and the rear support plate (23) is the same.

3. A micro-fine ore particle flotation mineralization apparatus using a moving member to induce micro-vortexes in a pipe, as claimed in claim 2, characterized in that: The vortex generators (2) are uniformly arranged along the central axis of the pipeline (1).

4. A micro-fine ore particle flotation mineralization apparatus using a moving member to induce micro-vortexes in a pipe according to claim 3, characterized in that: The main suspension plate (21) is provided with a through hole for the rotating shaft (20) to pass through, and the rotating shaft (20) is provided with a limiting block (24) for limiting the movement of the main suspension plate (21) along the length direction.

5. A micro-fine ore particle flotation mineralization apparatus using a moving member to induce micro-vortexes in a pipe according to claim 4, characterized in that: The rotating shaft (20) is provided with two limiting blocks (24) for limiting the movement of the main suspension plate (21) along the length direction.

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