Flotation equipment for screening impurities in phosphorus concentrate powder

Abstract

The utility model relates to the field of phosphorus concentrate flotation, and discloses flotation equipment for screening impurities in phosphorus concentrate, which comprises a shell, a rotating shaft is arranged on the upper portion of the shell, a mounting component is arranged on the outer side of the rotating shaft, a scraper is arranged on the outer side of the mounting component, and a cleaning component and an auxiliary component are arranged on the outer side of the rotating shaft. The cleaning assembly comprises a supporting frame fixedly connected to the outer side of the shell, a fixing plate is fixedly connected to the upper portion of the supporting frame, a connecting pipe is arranged on the upper portion of the fixing plate, and air holes are formed in the lower portion of the fixing plate. According to the cleaning device, the scraper can be automatically cleaned through the cleaning assembly, when the arc surface of the lower portion of the contact piece makes contact with the scraper, the scraper extrudes the contact piece to drive the movable plate to move upwards, gas is exhausted from the gas holes, the surface of the scraper is purged, and attached phosphate ore particles are removed; meanwhile, the inclined auxiliary plate can prevent air flow from blowing foam in the shell, and therefore it is guaranteed that the scraper blade works continuously and stably.

Description

Technical Field

[0001] This utility model relates to the field of phosphate powder flotation, and in particular to a flotation device for screening impurities in phosphate powder. Background Technology

[0002] Phosphate concentrate is a high-grade phosphate rock powder obtained after beneficiation and processing of phosphate rock. It is the main raw material for producing phosphate fertilizers, such as diammonium phosphate and superphosphate, which can provide phosphorus to crops and promote crop growth and development.

[0003] Flotation machine is short for flotation mineral processing machine. It refers to mechanical equipment that completes the flotation process. In the flotation machine, after the slurry is treated with reagents, it is stirred and aerated, so that some mineral particles selectively attach to the air bubbles. The particles float to the surface of the slurry and are scraped off to form froth products, while the rest remain in the slurry, thus achieving the purpose of separating minerals. There are many structural forms of flotation machines, but the most commonly used one is the mechanical stirring flotation machine.

[0004] During the flotation process, the scraper continuously scrapes the foam off the surface of the slurry, and inevitably some phosphate rock particles will adhere to the surface. Over time, these adhered particles gradually accumulate, which not only affects the scraping efficiency of the scraper and leads to incomplete foam removal, but also reduces the separation effect of phosphate concentrate. To address this issue, a flotation device for screening phosphate concentrate impurities is proposed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a flotation device for screening impurities in phosphate concentrate, which aims to solve the problem in the prior art that "particles attached to the scraper surface gradually accumulate, resulting in incomplete foam removal".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a flotation device for screening impurities in phosphate concentrate, comprising a shell, a rotating shaft at the upper part of the shell, an installation assembly on the outer side of the rotating shaft, a scraper on the outer side of the installation assembly, a cleaning assembly and an auxiliary assembly on the outer side of the rotating shaft, the cleaning assembly including a support frame fixedly connected to the outer side of the shell, a fixed plate fixedly connected to the upper part of the support frame, a connecting pipe on the upper part of the fixed plate, an air hole at the lower part of the fixed plate, a movable plate slidably connected to the inner wall of the fixed plate, a connecting hole penetrating the outer side of the movable plate, a closed column inserted into the inner wall of the connecting hole fixedly connected to the inner wall of the fixed plate, an upper part of the movable plate elastically connected to the fixed plate by a compression spring, and a contact element sliding on the inner wall of the fixed plate fixedly connected to the lower part of the movable plate.

[0007] As a further description of the above technical solution:

[0008] The auxiliary component includes an auxiliary plate, which is fixedly connected to the outside of the mounting component. There are two sets of auxiliary plates, and the two sets of auxiliary plates are inclined.

[0009] As a further description of the above technical solution:

[0010] The fixing plate is designed to be arc-shaped.

[0011] As a further description of the above technical solution:

[0012] The lower part of the contact element is configured as an arc surface.

[0013] As a further description of the above technical solution:

[0014] The outer side of the scraper is designed with an arc-shaped protrusion.

[0015] As a further description of the above technical solution:

[0016] The air vents are provided in multiple sets, and the multiple sets of air vents are arranged symmetrically about the center line of the fixed plate.

[0017] As a further description of the above technical solution:

[0018] The mounting assembly includes a mounting piece disposed on the outside of the rotating shaft. A limiting post inserted into the inner wall of the rotating shaft is fixedly connected to the outside of the mounting piece. The outside of the mounting piece is inserted into the inner wall of the scraper. The scraper is fixedly installed to the mounting piece by bolts.

[0019] As a further description of the above technical solution:

[0020] The mounting assembly also includes a damping nut, which is fixedly connected to the inner wall of the scraper, and the bolt is threadedly connected to the inner wall of the damping nut.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the cleaning component can automatically clean the scraper. When the arc surface at the bottom of the contact member contacts the scraper, the scraper squeezes the contact member and drives the moving plate to move upward. Gas is discharged from the air hole to blow the scraper surface and remove the attached phosphate rock particles. At the same time, the inclined auxiliary plate can prevent the airflow from blowing the foam in the shell, thereby ensuring that the scraper works continuously and stably.

[0023] 2. In this utility model, the limiting post on the outside of the mounting part is inserted into the inner wall of the rotating shaft to play a positioning role, ensuring that the mounting part is accurately installed on the rotating shaft. At the same time, the scraper is directly sleeved on the outside of the mounting part, and the scraper and the mounting part are fixed by bolts and damping nuts, which makes the scraper installation quick and firm, and also facilitates disassembly and replacement when the scraper is worn or needs to be replaced. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram showing the disassembled rotating shaft and support frame of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the connecting hole, the closing post, and the compression spring in this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the disassembled mounting components in this utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Rotating shaft; 3. Cleaning assembly; 31. Support frame; 32. Fixing plate; 33. Air vent; 34. Moving plate; 35. Connecting hole; 36. Sealing post; 37. Compression spring; 38. Contact element; 4. Auxiliary assembly; 41. Auxiliary plate; 5. Mounting assembly; 51. Mounting element; 52. Limiting post; 53. Bolt; 54. Damping nut; 6. Scraper. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 - Figure 3This utility model provides an embodiment of a flotation device for screening impurities in phosphate concentrate, including a housing 1 for accommodating the components required for the flotation device. This technology is prior art and will not be described in detail. A rotating shaft 2 is provided on the upper part of the housing 1 to drive a scraper 6 to rotate, thereby discharging foam from the housing 1. An installation assembly 5 is provided on the outer side of the rotating shaft 2, and a scraper 6 is provided on the outer side of the installation assembly 5. The outer side of the scraper 6 is configured with an arc-shaped protrusion. During the flotation process, as the rotating shaft 2 rotates, the scraper 6 scrapes the foam on the surface of the slurry in the flotation cell. At the same time, the inner wall of the scraper 6 near the installation assembly 51... The hollow design allows the scraper 6 to be directly fitted onto the mounting component 51. A cleaning component 3 and an auxiliary component 4 are provided on the outside of the rotating shaft 2. The cleaning component 3 includes a support frame 31 fixedly connected to the outside of the housing 1, which supports the fixing plate 32 and the rotating shaft 2, ensuring the stability of the cleaning component 3. The upper part of the support frame 31 is fixedly connected to the fixing plate 32, which is arc-shaped, providing installation positions for the moving plate 34, the closing column 36, the compression spring 37, and the contact component 38. Its arc-shaped design can better fit the movement trajectory of the scraper 6, so that the cleaning range covers both sides of the scraper 6.

[0032] Reference Figure 1 - Figure 3 The upper part of the fixed plate 32 is provided with a connecting pipe for connecting to an air source. The lower part of the fixed plate 32 is provided with air holes 33. Multiple sets of air holes 33 are arranged symmetrically about the center line of the fixed plate 32. When the gas enters the fixed plate 32 from the connecting pipe, it is discharged through these air holes 33 to blow the surface of the scraper 6 to remove the attached phosphate rock particles. A movable plate 34 is slidably connected to the inner wall of the fixed plate 32. When the scraper 6 presses against the contact member 38, the movable plate 34 moves upward and the compression spring 37 is compressed. When the scraper 6 leaves, it resets under the action of the compression spring 37, thereby realizing the control of the cleaning process of the scraper 6.

[0033] Reference Figure 1 - Figure 3 A connecting hole 35 is provided through the outer side of the moving plate 34. A sealing post 36 is fixedly connected to the inner wall of the fixed plate 32 and inserted into the inner wall of the connecting hole 35. The sliding between the connecting hole 35 and the sealing post 36 is sealed to block the airflow. When the scraper 6 does not squeeze the contact member 38, it prevents the airflow from being discharged from the air hole 33 and affecting the normal flotation. The upper part of the moving plate 34 is elastically connected to the fixed plate 32 through a compression spring 37 to provide elastic restoring force for the moving plate 34. The lower part of the moving plate 34 is fixedly connected to the contact member 38 that slides on the inner wall of the fixed plate 32. The lower part of the contact member 38 is set as an arc surface and contacts the scraper 6. When the scraper 6 rotates and passes by, the scraper 6 squeezes the contact member 38, which drives the moving plate 34 to move upward, thereby causing the connecting hole 35 to disengage from the sealing post 36. The airflow enters the air hole 33 through the connecting hole 35 to spray and clean the scraper 6.

[0034] Reference Figure 2 and Figure 4 The auxiliary component 4 includes an auxiliary plate 41, which is fixedly connected to the outside of the mounting component 5. There are two sets of auxiliary plates 41, which can prevent the airflow generated by the cleaning component 3 when blowing the scraper 6 from blowing the foam in the shell 1, and ensure the stability of the flotation process. The two sets of auxiliary plates 41 are inclined so that the airflow blows to the outside of the shell 1, which can help blow out the foam.

[0035] Reference Figure 2 and Figure 4 The mounting component 5 includes a mounting piece 51 located on the outside of the rotating shaft 2, which provides an installation position for the scraper 6 and the limiting post 52. It is an important component connecting the rotating shaft 2 and the scraper 6. The limiting post 52, which is inserted into the inner wall of the rotating shaft 2, is fixedly connected to the outside of the mounting piece 51, which plays a positioning role and ensures that the mounting piece 51 is accurately installed on the rotating shaft 2, so that the scraper 6 maintains a stable position and posture during rotation. The outside of the mounting piece 51 is inserted into the inner wall of the scraper 6, and the scraper 6 is fixedly installed to the mounting piece 51 by bolts 53.

[0036] Reference Figure 4 The mounting assembly 5 also includes a damping nut 54, which is fixedly connected to the inner wall of the scraper 6. The bolt 53 is threadedly connected to the inner wall of the damping nut 54, which makes the scraper 6 firmly installed and facilitates disassembly and replacement when the scraper 6 is worn or needs to be replaced. At the same time, the damping nut 54 can increase the stability of the bolt 53 after installation and prevent loosening.

[0037] Working principle: When in use, connect the equipment to an external air source and connect the air source to the connecting pipe on the upper part of the fixed plate 32 to provide a gas source for the cleaning component 3. Start the equipment and drive the rotating shaft 2 to start rotating. Inside the flotation machine, the phosphate rock slurry treated with reagents is aerated by stirring, so that the phosphate concentrate particles adhere to the air bubbles and float to the surface of the slurry to form a foam layer. As the rotating shaft 2 rotates, the mounting component 5 drives the scraper 6 to rotate synchronously, efficiently scraping the foam on the surface of the slurry and scraping the foam containing phosphate concentrate out of the flotation cell, thus achieving the initial separation of phosphate concentrate from impurities.

[0038] When the scraper 6 rotates with the shaft 2 to the position of the cleaning component 3, the scraper 6 will press against the contact member 38. Since the lower part of the contact member 38 is an arc surface, it can reduce the friction with the scraper 6. The contact member 38 is fixedly connected to the moving plate 34. After being pressed, it drives the moving plate 34 to move upward, and the compression spring 37 is compressed.

[0039] At this time, the connecting hole 35 on the moving plate 34 is released from the blockage of the sealing column 36. The gas that enters the fixed plate 32 from the connecting pipe enters the air hole 33 through the connecting hole 35 and is discharged from the air hole 33. It blows the surface of the scraper 6 to remove the attached phosphate rock particles. At the same time, during the process of the scraper 6 scraping foam and the cleaning component 3 blowing the scraper 6, the auxiliary plate 41 can guide the airflow generated by the cleaning component 3 to blow it to the outside of the shell 1, so as to prevent the airflow from blowing the foam in the shell 1 and ensure the stability of the flotation process.

[0040] After the scraper 6 leaves the contact member 38, the moving plate 34 moves downward under the elastic restoring force of the compression spring 37, and the connecting hole 35 re-engages with the sealing column 36 to seal the air hole 33 and prevent gas leakage from affecting flotation.

[0041] 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 flotation device for the screening of phosphorus concentrate impurities, comprising a housing (1), characterized in that: The upper part of the outer shell (1) is provided with a rotating shaft (2), the outer side of the rotating shaft (2) is provided with an installation component (5), the outer side of the installation component (5) is provided with a scraper (6), and the outer side of the rotating shaft (2) is provided with a cleaning component (3) and an auxiliary component (4). The cleaning component (3) includes a support frame (31) fixedly connected to the outside of the outer shell (1). A fixed plate (32) is fixedly connected to the upper part of the support frame (31). A connecting pipe is provided on the upper part of the fixed plate (32). An air hole (33) is opened on the lower part of the fixed plate (32). A movable plate (34) is slidably connected to the inner wall of the fixed plate (32). A connecting hole (35) is opened through the outer side of the movable plate (34). A closed column (36) inserted into the inner wall of the connecting hole (35) is fixedly connected to the inner wall of the fixed plate (32). The upper part of the movable plate (34) is elastically connected to the fixed plate (32) through a compression spring (37). A contact element (38) that slides on the inner wall of the fixed plate (32) is fixedly connected to the lower part of the movable plate (34).

2. A flotation device for the screening of phosphorous concentrate impurities according to claim 1 characterized in that: The auxiliary component (4) includes an auxiliary plate (41), which is fixedly connected to the outside of the mounting component (5). There are two sets of auxiliary plates (41), and the two sets of auxiliary plates (41) are inclined.

3. A flotation device for the screening of phosphorous concentrate impurities according to claim 1 characterized in that: The fixing plate (32) is set in an arc shape.

4. A flotation device for screening impurities from rock phosphate powder as claimed in claim 1, wherein: The lower part of the contact element (38) is configured as an arc surface.

5. A flotation device for screening impurities from rock phosphate powder as claimed in claim 1, wherein: The outer side of the scraper (6) is provided with an arc-shaped protrusion.

6. A phosphate rock impurity flotation device according to claim 1, characterized by: The air holes (33) are provided in multiple sets, and the multiple sets of air holes (33) are arranged symmetrically about the center line of the fixing plate (32).

7. A flotation device for screening impurities from rock phosphate powder as claimed in claim 1, wherein: The mounting assembly (5) includes a mounting piece (51) disposed on the outside of the rotating shaft (2). A limiting post (52) inserted into the inner wall of the rotating shaft (2) is fixedly connected to the outside of the mounting piece (51). The outside of the mounting piece (51) is inserted into the inner wall of the scraper (6). The scraper (6) is fixedly installed to the mounting piece (51) by bolts (53).

8. A flotation device for the screening of phosphorous concentrate impurities according to claim 7, characterized in that: The mounting assembly (5) also includes a damping nut (54), which is fixedly connected to the inner wall of the scraper (6), and the bolt (53) is threadedly connected to the inner wall of the damping nut (54).

Images