Flotation device for ore dressing

Abstract

This application discloses a flotation device for mineral processing, including a flotation chamber, a screening component on one side of the flotation chamber, a screening chamber at the upper part of the screening component, a first screen plate inside the screening chamber, a guide chamber at the lower part of the screening chamber with its opening facing the flotation chamber, a vibrating part at the lower part of the guide chamber, and a support rod at the bottom of the guide chamber. By placing mineral particles into the screening chamber at the upper part of the screening component and then screening them through the first screen plate inside the screening chamber, the volume and weight of the mineral particles can be controlled to prevent them from becoming overweight and to avoid them being unable to be lifted during froth flotation, thereby improving the flotation efficiency of the mineral particles.

Description

Technical Field

[0001] This utility model belongs to the field of mineral processing equipment technology, specifically relating to a flotation device for mineral processing. Background Technology

[0002] Flotation is a process in which chemical reagents are added to a slurry to make the particles to be separated hydrophobic, and then air is introduced into the slurry to carry the hydrophobic particles to the surface of the slurry to form stable foam and then remove them.

[0003] During flotation, the slurry treated with reagents is stirred, causing some mineral particles to selectively adhere to the air bubbles and float to the surface, where they are scraped off to form a froth product. The remaining particles remain in the slurry, thus achieving mineral separation. During flotation, minerals with weak adhesion gradually detach from the air bubbles and sink, forming tailings; while valuable metallic minerals with stronger adhesion rise with the air bubbles.

[0004] The actual problem is that the buoyancy provided by bubbles is limited. When the weight of the mineral particles exceeds the sum of the buoyancy and adsorption force provided by the bubbles, the mineral particles cannot be lifted, reducing the mineral separation efficiency. Utility Model Content

[0005] This application proposes a flotation device for mineral processing, which can screen mineral particles before flotation. The weight of the particles is controlled by their own gravity (G = mg = ρ * V * g, where ρ is the particle density and V is the particle volume), i.e., by controlling the particle volume, thereby controlling the particle weight and improving the flotation efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A flotation device for mineral processing includes a flotation chamber, a screening component is provided on one side of the flotation chamber, a screening chamber is provided on the upper part of the screening component, a first screen plate is provided in the screening chamber, a guide chamber is provided at the lower part of the screening chamber, the opening of the guide chamber faces the flotation chamber, a vibrating part is provided at the lower part of the guide chamber, and a support rod is provided at the bottom of the guide chamber.

[0007] In one embodiment of this application, the first screen plate in the screening chamber is arranged in an inclined manner, and a discharge pipe is provided at the lower end of the first screen plate, the discharge pipe being connected to the screening chamber.

[0008] In one embodiment of this application, a baffle is provided at the outlet of the material guiding cavity. The upper edge of the baffle is rotatably connected to the outer wall of the material guiding cavity. A rotating seat is provided on the upper surface of the baffle. The rotating seat is rotatably connected to one end of a pull rod. The pull rod has multiple through holes. A connecting rod is provided on the inner wall of the material guiding cavity. A fixing block is provided on the connecting rod. An insertion hole is provided on the fixing block.

[0009] In one embodiment of this application, the vibration unit includes a vibrator disposed on one side of the material guide cavity, the vibrator being connected to one end of a transmission rod, and the other end of the transmission rod being inserted into a connection hole at the lower part of the material guide cavity.

[0010] In one embodiment of this application, the guide cavity is connected to the support rod by a spring.

[0011] In one embodiment of this application, a second screen plate is provided on the upper end of the side wall of the flotation chamber, and the second screen plate is rotatably connected to the side wall of the flotation chamber via an electric rotating shaft.

[0012] In one embodiment of this application, a reinforcing rod is connected between the support rods.

[0013] In summary, the technical solution proposed in this application has the following beneficial technical effects: This application controls the volume and weight of mineral particles by placing them into the screening chamber at the top of the screening component and then screening them through the first screen plate in the screening chamber, so as to prevent the mineral particles from being overweight and avoid the mineral particles from being unable to be lifted during the froth flotation process, thereby improving the flotation efficiency of the mineral particles. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a flotation device for mineral processing provided in an embodiment of this application; Figure 2 Figure 1 Enlarged view of point A; Figure 3 This is a top view of a flotation apparatus for mineral processing provided in an embodiment of this application; Figure 4 for Figure 3 Sectional view at point AA; Figure 5 This is a cross-sectional structural diagram of a flotation device for mineral processing provided in an embodiment of this application; Figure 6 This is a cross-sectional structural diagram of a flotation device for mineral processing provided in an embodiment of this application.

[0016] In the diagram: Storage chamber 100; Flotation chamber 1, second sieve plate 11; Screening chamber 2, first screen plate 21, discharge pipe 211; Material guide chamber 3, baffle 31, rotating seat 32, pull rod 33, connecting rod 34, fixing block 341; Support rod 4, reinforcing rod 41; Vibrator 5, transmission rod 51, connecting hole 35; Spring 6. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0018] It should be noted that in the description of this application, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0019] In this application, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of these terms in this application based on the specific circumstances.

[0020] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0021] This embodiment provides a flotation device for mineral processing, see reference. Figures 1-6As shown, it includes a flotation chamber 1, a screening assembly is provided on one side of the flotation chamber 1, a screening chamber 2 is provided on the upper part of the screening assembly, a first screen plate 21 is provided in the screening chamber 2, a guide chamber 3 is provided at the lower part of the screening chamber 2, the opening of the guide chamber 3 faces the flotation chamber 1, a vibrating part is provided at the lower part of the guide chamber 3, and a support rod 4 is provided at the bottom of the guide chamber 3.

[0022] In the above embodiment, a screening component is provided on one side of the flotation chamber 1 for screening the flotation particles. The particles are placed into the screening chamber 2 located at the top of the screening component, and then screened by the first screen plate 21 within the screening chamber 2. This controls the particle volume and weight to prevent overweight particles from failing to be lifted during froth flotation, thereby improving flotation efficiency. A guide chamber 3 is located at the bottom of the screening chamber 2. The guide chamber 3 is inclined and has an opening at its inclined bottom. The particles screened by the first screen plate 21 fall into the guide chamber 3, with the opening facing the flotation chamber 1. The screened particles enter the flotation chamber 1 through the opening of the guide chamber 3, where flotation is performed by adding flotation reagent. In addition, a vibrating part is provided at the lower part of the feed chamber 3. The operation of the vibrating part drives the feed chamber 3 and the screening chamber 2 to vibrate. On the one hand, the vibration of the screening chamber 2 drives the first screen plate 21 to vibrate, which also causes the mineral particles in the screening chamber 2 to shake, which can speed up the speed of the mineral particles passing through the first screen plate 21. On the other hand, the vibration of the feed chamber 3 can make the mineral particles slide more smoothly into the flotation chamber 1, preventing the mineral particles from adhering in the feed chamber 3.

[0023] In one embodiment of this application, see reference Figure 5 As shown, the first screen plate 21 in the screening chamber 2 is arranged in an inclined shape, and a discharge pipe 211 is provided at the lower end of the first screen plate 21, which is connected to the screening chamber 2.

[0024] In the above embodiment, after the mineral particles contact the inclined first screen plate 21, those that pass through the screen holes fall into the lower feed chamber 3, while those that do not pass through the screen holes slide down the inclined first screen plate 21 to the discharge pipe 211 and are discharged from the screening chamber 2. This prevents the mineral particles that do not pass through the screen plate from clogging the screening chamber 2, thus improving the screening efficiency of the screening chamber 2. In addition, the mineral particles that do not pass through the screen can be returned to the mill for further crushing and screening, which can improve the utilization rate of the mineral material. Furthermore, timely screening of small mineral particles by the screen plate can prevent the mineral particles from being over-crushed in the mill and generating harmful sludge.

[0025] In one embodiment of this application, see [reference] Figure 2As shown, a baffle 31 is provided at the outlet of the material guiding cavity 3. The upper edge of the baffle 31 is rotatably connected to the outer wall of the material guiding cavity 3. A rotating seat 32 is provided on the upper surface of the baffle 31. The rotating seat 32 is rotatably connected to one end of the pull rod 33. The body of the pull rod 33 is provided with multiple through holes. A connecting rod 34 is provided on the inner wall of the material guiding cavity 3. A fixing block 341 is provided on the connecting rod 34. An insertion hole is provided on the fixing block 341.

[0026] In the above embodiment, one side of the baffle 31 is rotatably connected to the outer wall of the feed chamber 3 via a hinge, and a rotating seat 32 is provided on the upper end face of the baffle 31 and rotatably connected to one end of the pull rod 33. The opening and closing of the baffle 31 can be controlled by pulling the pull rod 33. In addition, the rod body of the pull rod 33 is provided with multiple through holes, and a connecting rod 34 is provided on the inner wall of the feed chamber 3. A fixing block 341 is provided on the connecting rod 34, and an insertion hole is provided on the fixing block 341. The through holes of the rod body of the pull rod 33 can be fixed to the insertion hole on the fixing block 341 by a pin. Furthermore, the through holes at different positions on the rod body of the pull rod 33 are fixed to the fixing block 341 to control the opening and closing range of the baffle 31 in the feed chamber 3. By controlling the opening and closing range of the baffle 31 in the feed chamber 3, the discharge speed of the mineral particles in the feed chamber 3 can be controlled, which facilitates the control of the reaction speed of the mineral particles in the flotation chamber 1 and is beneficial to improving the flotation effect of the mineral particles.

[0027] In one embodiment of this application, see reference Figure 1 As shown, the vibration unit includes a vibrator 5 disposed on one side of the material guiding cavity 3. The vibrator 5 is connected to one end of the transmission rod 51, and the other end of the transmission rod 51 is inserted into the connection hole 35 at the lower part of the material guiding cavity 3.

[0028] In the above embodiment, the vibrator 5 is connected to one end of the transmission rod 51, and the other end of the transmission rod 51 is inserted into the connection hole 35 at the bottom of the guide cavity 3. The vibrator 5 drives the transmission rod 51 to vibrate, thereby causing the guide cavity 3 to vibrate. The vibrator 5 is set on the side of the guide cavity 3, that is, outside the guide cavity 3. Compared with setting the vibrator 5 at the bottom of the guide cavity 3, it is easier to set and install the vibrator 5. It is also easier to adapt to vibrators 5 of different sizes to drive the transmission rod 51 to vibrate, thereby causing the guide cavity 3 to vibrate. This is beneficial to improving the adaptability of the vibrator 5 in setting and installation.

[0029] In one embodiment of this application, see reference Figure 1 and Figure 4 As shown, the material guiding cavity 3 is connected to the support rod 4 via a spring 6.

[0030] In the above embodiment, the material guiding cavity 3 is elastically connected to the support rod 4 by the spring 6, so that the spring 6 undergoes elastic deformation when the material guiding cavity 3 vibrates, thereby increasing the vibration amplitude of the material guiding cavity 3, which is beneficial to improving the screening rate of the screen plate in the screening cavity 2.

[0031] In one embodiment of this application, see reference Figure 5 and Figure 6 As shown, a second sieve plate 11 is respectively provided on the upper end of the side wall of the flotation chamber 1, and the second sieve plate 11 is rotatably connected to the side wall of the flotation chamber 1 through an electric rotating shaft.

[0032] In the above embodiments, in the initial state as follows Figure 5 As shown, the second screen plate 11 is vertically arranged parallel to the inner wall of the flotation chamber 1. When the foam formed by the flotation agent in the flotation chamber 1 carries the mineral particles to the surface, as... Figure 6 As shown, the electric rotating shaft drives the second screen plate 11 to rotate outward of the flotation chamber 1. The second screen plate 11 is used to catch the flotation foam of mineral particles in the flotation chamber 1. Storage chambers 100 are provided on the lower part of both sides of the flotation chamber 1. The flotation foam of mineral particles caught on the second screen plate 11 can be collected in the storage chambers 100 by rinsing and scraping, so as to be used for subsequent refining of minerals, which is beneficial to improving the flotation efficiency of mineral particles.

[0033] In one embodiment of this application, see reference Figure 6 As shown, reinforcing rods 41 are connected between the support rods 4.

[0034] In the above embodiment, the reinforcing rod 41 connecting the support rods 4 is used to increase the connection points between each support rod 4, which is beneficial to improving the stability of the support rods 4.

[0035] In actual use of this application: mineral particles are placed into the screening chamber 2 located at the top of the screening component, and then screened by the first screen plate 21 located in the screening chamber 2 to control the volume of mineral particles. Light minerals (sulfur): screening particle size is less than 0.5 mm; heavy minerals (such as galena and pyrite): The screening particle size is less than 0.15 mm. That is, according to the different densities of the minerals, the sieve holes of the first sieve plate 21 are controlled to screen the mineral particles so that the weight of the mineral particles is less than the buoyancy of the flotation agent foam, thereby improving the mineral separation efficiency. The inclined bottom end of the feed chamber 3 is provided with an opening. The mineral particles screened by the first sieve plate 21 fall into the feed chamber 3, and the opening of the feed chamber 3 faces the flotation chamber 1. The screened mineral particles enter the flotation chamber 1 through the opening of the feed chamber 3 and mix with the solution in the flotation chamber 1 to form a slurry. Optionally, after adding flotation agent to the slurry, in order to increase the flotation effect, a mixer can be used to stir the slurry in the flotation chamber 1 or air can be introduced into the slurry to float the mineral particles.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A flotation device for mineral processing, characterized in that, The system includes a flotation chamber (1), a screening assembly on one side of the flotation chamber (1), a screening chamber (2) on the upper part of the screening assembly, a first screen plate (21) inside the screening chamber (2), a guide chamber (3) at the lower part of the screening chamber (2), the opening of the guide chamber (3) facing the flotation chamber (1), a vibrating part at the lower part of the guide chamber (3), a support rod (4) at the bottom of the guide chamber (3), the first screen plate (21) inside the screening chamber (2) is inclined, a discharge pipe (211) is provided at the lower end of the first screen plate (21), the discharge pipe (211) is connected to the screening chamber (2), and a baffle (31) is provided at the outlet of the guide chamber (3). The end edge is rotatably connected to the outer wall of the guide cavity (3). A rotating seat (32) is provided on the upper end face of the baffle (31). The rotating seat (32) is rotatably connected to one end of the pull rod (33). The body of the pull rod (33) is provided with multiple through holes. A connecting rod (34) is provided on the inner wall of the guide cavity (3). A fixing block (341) is provided on the connecting rod (34). An insertion hole is provided on the fixing block (341). The vibration part includes a vibrator (5) provided on one side of the guide cavity. The vibrator (5) is connected to one end of the transmission rod (51). The other end of the transmission rod (51) is inserted into the connecting hole (35) at the bottom of the guide cavity (3). The guide cavity (3) is connected to the support rod (4) through a spring (6).

2. The flotation apparatus for mineral processing according to claim 1, characterized in that, The upper end of the side wall of the flotation chamber (1) is provided with a second sieve plate (11), and the second sieve plate (11) is rotatably connected to the side wall of the flotation chamber (1) through an electric rotating shaft.

3. The flotation apparatus for mineral processing according to any one of claims 1-2, characterized in that, A reinforcing rod (41) is connected between the support rods (4).

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