A density classification-based phosphate ore flotation pretreatment device

Abstract

The utility model relates to phosphate rock flotation field discloses a kind of phosphate rock flotation pretreatment equipment based on density grading, including flotation barrel, the middle part of the flotation barrel is rotatably connected with rotating rod, the outer wall of the rotating rod is fixedly connected with rotating cylinder, the bottom end outer wall of the rotating cylinder is provided with multiple check valves, the bottom end outer wall of the rotating rod is fixedly connected with two stirring blades, the top of the flotation barrel is equipped with a vane body, the outer wall of the vane body is rotatably connected with the top of rotating cylinder, and the output end of the vane body is communicated with rotating cylinder. In the utility model, rotating rod and rotating cylinder are driven to rotate by motor, air is sucked into the vane and sprayed out through check valve, which can effectively bring the vein mineral with smaller density to the upper part of the flotation barrel, and the phosphate mineral with larger density sinks to the lower part, to realize the preliminary separation and screening of raw materials. Meanwhile, the stirring blades on the rotating rod can stir the raw materials when rotating, so that the phosphate mineral wrapped inside the raw materials is exposed.

Description

Technical Field

[0001] This utility model relates to the field of phosphate rock flotation, and in particular to a phosphate rock flotation pretreatment device based on density classification. Background Technology

[0002] Phosphate rock, as an important chemical raw material, is widely used in agricultural fertilizers, fine chemicals, and other fields. Phosphate rock flotation pretreatment is a key step in improving phosphate rock quality and achieving efficient resource utilization. Its purpose is to effectively separate phosphate minerals from gangue minerals through physical or chemical means, providing high-quality raw materials for subsequent beneficiation processes.

[0003] Currently, most commercially available phosphate rock flotation pretreatment equipment uses simple agitation or air flotation for mineral separation. While traditional agitation equipment can ensure uniform mixing of the slurry, it cannot accurately utilize differences in mineral density for effective classification, resulting in some phosphate minerals being mixed with gangue minerals and difficult to separate. Simple air flotation equipment, while able to separate some light gangue, lacks effective agitation of the raw material, easily preventing the exposure of phosphate minerals encased within the raw material, thus affecting screening efficiency. To address this technical problem, this application proposes a density-based phosphate rock flotation pretreatment device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a density-based phosphate rock flotation pretreatment device. Driven by a motor, the rotating rod and drum rotate, which in turn drives a turbine fan to draw in air and eject it through a one-way valve. This effectively brings the less dense gangue minerals to the top of the flotation tank, while the denser phosphate minerals sink to the bottom, achieving preliminary separation and screening of the raw materials. Simultaneously, the stirring blades on the rotating rod agitate the raw materials during rotation, exposing the phosphate minerals encased within them and improving the separation efficiency between phosphate and gangue minerals. The scrapers on the outer wall of the rotating drum push the phosphate minerals floating to the top of the flotation tank out through the discharge port, achieving automatic discharge of the phosphate minerals. Furthermore, by integrating air introduction, stirring separation, and scraper discharge functions into a single rotating mechanism, the device boasts a compact and rational structure. The coordinated operation of all components ensures both the efficiency and purity of phosphate mineral screening while simplifying the process flow. This results in advantages such as convenient operation, stable operation, and increased production capacity in practical applications.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A density-based phosphate rock flotation pretreatment device includes a flotation tank, a rotating rod rotatably connected to the middle of the flotation tank, a rotating cylinder fixedly connected to the outer wall of the rotating rod, a plurality of one-way valves provided on the bottom outer wall of the rotating cylinder, two stirring blades fixedly connected to the bottom outer wall of the rotating rod, a turbine fan body installed at the top of the flotation tank, the outer wall of the turbine fan body being rotatably connected to the top of the rotating cylinder, and the output end of the turbine fan body being connected to the rotating cylinder.

[0006] Furthermore, a motor is provided at the bottom end of the rotating rod, the non-driving end of the motor is connected to the bottom outer wall of the flotation tank, and the driving end of the motor is fixedly connected to the bottom end of the rotating rod.

[0007] Furthermore, the outer wall of the flotation tank is fixedly connected with connecting pipe two and connecting pipe three, and connecting pipe two is located above connecting pipe three.

[0008] Furthermore, multiple legs are fixedly connected to the bottom outer periphery of the flotation tank, and the bottom ends of the multiple legs are located on the same horizontal line to support the flotation tank.

[0009] Furthermore, a connecting pipe is fixedly connected to the outer periphery of the top of the flotation tank, and a filter screen is installed on the inner wall of the connecting pipe by bolts.

[0010] Furthermore, a scraper is fixedly connected to the outer wall of the rotating cylinder. The scraper is inclined to scrape the concentrate with a lower density.

[0011] Furthermore, a discharge port is fixedly connected to the outer wall of the flotation tank. The discharge port is used to discharge concentrate with a lower density, and the discharge port is inclined downward.

[0012] This utility model has the following beneficial effects: 1. In this utility model, the rotating rod and rotating cylinder are driven by a motor to rotate, which drives the turbofan to draw in air and spray it out through a one-way valve. This can effectively bring the less dense gangue minerals to the top of the flotation tank, while the denser phosphate minerals sink to the bottom, thus achieving the initial separation and screening of the raw materials. At the same time, the stirring blades on the rotating rod can stir the raw materials when they rotate, exposing the phosphate minerals wrapped inside the raw materials and improving the separation efficiency of phosphate minerals and gangue minerals.

[0013] 2. In this utility model, the phosphate minerals floating above the flotation tank can be pushed out through the discharge port by the scraper on the outer wall of the rotating cylinder, realizing the automatic discharge of phosphate minerals. Furthermore, the functions of air introduction, stirring separation and scraper discharge are integrated into the same rotating mechanism, which has a compact and reasonable structure. All components work together to ensure the efficiency and purity of phosphate mineral screening, and simplify the process flow. This makes the device convenient to operate, stable in operation and improve production capacity in practical applications. Attached Figure Description

[0014] Figure 1 This is a perspective view of a phosphate rock flotation pretreatment device based on density classification proposed in this utility model. Figure 2 This is a schematic diagram of the flotation tank of a density-based phosphate rock flotation pretreatment device proposed in this utility model. Figure 3 This is a schematic diagram of the rotating cylinder of a phosphate rock flotation pretreatment device based on density classification proposed in this utility model. Figure 4 This is a schematic diagram of the rotating rod structure of a density-based phosphate rock flotation pretreatment device proposed in this utility model.

[0015] Legend: 1. Flotation tank; 2. Discharge port; 3. Turbine fan body; 4. Connecting pipe one; 5. Connecting pipe two; 6. Connecting pipe three; 7. Support leg; 8. Motor; 9. Rotating cylinder; 10. Stirring blade; 11. Rotating rod; 12. One-way valve; 13. Scraper. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figure 1-3 This utility model provides an embodiment of a density-based phosphate rock flotation pretreatment device, comprising a flotation tank 1, a rotating rod 11 rotatably connected to the middle of the flotation tank 1, and a rotating cylinder 9 fixedly connected to the outer wall of the rotating rod 11. When the rotating rod 11 rotates, it can rotate the rotating cylinder 9 on its outer wall. Multiple one-way valves 12 are provided on the bottom outer wall of the rotating cylinder 9. The rotating rod 11 causes the turbine fan body 3 to rotate, thereby drawing air into the rotating cylinder 9 and discharging it through the one-way valves 12, thus introducing air into the raw material. Two stirring blades 10 are fixedly connected to the bottom outer wall of the rotating rod 11. The rotation of the rotating rod 11 can cause the two stirring blades 10 on its outer wall to rotate, thereby stirring the raw material in the flotation tank 1. A turbine fan body 3 is installed at the top of the flotation tank 1. By rotating the turbine fan body 3, air can be drawn into the rotating cylinder 9. The outer wall of the turbine fan body 3 is rotatably connected to the top of the rotating cylinder 9, and the output end of the turbine fan body 3 is connected to the rotating cylinder 9.

[0018] Reference Figure 3-4The flotation tank 11 is equipped with a motor 8 at its bottom end. The non-driving end of the motor 8 is connected to the bottom outer wall of the flotation tank 1, and the driving end of the motor 8 is fixedly connected to the bottom end of the rotating rod 11. The motor 8 drives the rotating rod 11 to rotate, which in turn drives the shaft of the turbofan body 3 to rotate, thus enabling the turbofan body 3 to operate. A second connecting pipe 5 and a third connecting pipe 6 are fixedly connected to the outer wall of the flotation tank 1, with the second connecting pipe 5 positioned above the third connecting pipe 6. Raw materials are fed into the flotation tank 1 through the second connecting pipe 5, and tailings with higher density are discharged through the third connecting pipe 6. Multiple support legs 7 are fixedly connected to the outer periphery of the bottom of the flotation tank 1, with the bottom ends of the multiple support legs 7 positioned on the same horizontal line to support the flotation tank 1. A first connecting pipe 4 is fixedly connected to the outer periphery of the top of the flotation tank 1. A filter screen is bolted to the inner wall of the first connecting pipe 4, allowing liquid from the raw materials to be discharged. A scraper 13 is fixedly connected to the outer wall of the rotating drum 9. The scraper 13 is inclined to scrape the concentrate with lower density. As the rotating drum 9 rotates, the scraper 13 on its outer wall rotates, pushing the concentrate into the discharge port 2 and discharging it through the discharge port 2. The flotation tank 1 is fixedly connected to the outer wall of the discharge port 2, which is used to discharge the concentrate with lower density, and the discharge port 2 is inclined downward.

[0019] Working principle: First, the raw material is fed into the flotation tank 1 through the connecting pipe 2 5. Then, the rotating motor 8 drives the rotating rod 11 to rotate. The rotation of the rotating rod 11 causes the rotating cylinder 9 on its outer wall to rotate. When the rotating rod 11 drives the rotating cylinder 9, it also drives the rotating shaft of the turbofan body 3 to rotate, so that the turbofan body 3 can draw air into the rotating cylinder 9 and spray it out through the one-way valve 12 on the outer wall of the rotating cylinder 9. By introducing air into the flotation tank 1, the less dense concentrate is carried to the upper part of the flotation tank 1, while the denser tailings fall to the lower part of the flotation tank 1, thus screening the raw material. When the rotating rod 11 rotates, it also drives the stirring blades 10 on its outer wall to rotate, thus stirring the raw material and exposing the concentrate inside the raw material, thereby improving the efficiency of concentrate screening. Then, the rotating cylinder 9 drives the scraper 13 on its outer wall to push the concentrate that floats to the top of the flotation tank 1 out through the discharge port 2 and discharge the concentrate.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phosphate rock flotation pretreatment device based on density classification, characterized in that, The flotation tank (1) includes a rotating rod (11) rotatably connected to the middle of the flotation tank (1). A rotating cylinder (9) is fixedly connected to the outer wall of the rotating rod (11). Multiple one-way valves (12) are provided on the bottom outer wall of the rotating cylinder (9). Two stirring blades (10) are fixedly connected to the bottom outer wall of the rotating rod (11). A turbofan body (3) is installed at the top of the flotation tank (1). The outer wall of the turbofan body (3) is rotatably connected to the top of the rotating cylinder (9), and the output end of the turbofan body (3) is connected to the rotating cylinder (9).

2. The phosphate rock flotation pretreatment equipment based on density classification according to claim 1, characterized in that: A motor (8) is provided at the bottom end of the rotating rod (11). The non-driving end of the motor (8) is connected to the bottom outer wall of the flotation tank (1), and the driving end of the motor (8) is fixedly connected to the bottom end of the rotating rod (11).

3. The phosphate rock flotation pretreatment equipment based on density classification according to claim 1, characterized in that: The outer wall of the flotation tank (1) is fixedly connected to a second connecting pipe (5) and a third connecting pipe (6), and the second connecting pipe (5) is located above the third connecting pipe (6).

4. The phosphate rock flotation pretreatment equipment based on density classification according to claim 1, characterized in that: The bottom outer periphery of the flotation tank (1) is fixedly connected with multiple legs (7), and the bottom ends of the multiple legs (7) are located on the same horizontal line to support the flotation tank (1).

5. The phosphate rock flotation pretreatment equipment based on density classification according to claim 1, characterized in that: The top outer periphery of the flotation tank (1) is fixedly connected to a connecting pipe (4), and a filter screen is installed on the inner wall of the connecting pipe (4) by bolts.

6. The phosphate rock flotation pretreatment equipment based on density classification according to claim 1, characterized in that: The outer wall of the rotating cylinder (9) is fixedly connected to a scraper (13), which is inclined to scrape the concentrate with a lower density.

7. The phosphate rock flotation pretreatment equipment based on density classification according to claim 1, characterized in that: The outer wall of the flotation tank (1) is fixedly connected to a discharge port (2), which is used to discharge concentrate with low density, and the discharge port (2) is set to tilt downward.

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