Ore pulp guiding device and flotation machine
By installing slurry guide plates and scum guide rollers in the flotation machine, the slurry flow is blocked, a static area is formed, and the scum flow is guided, thus solving the problem of scum backflow and improving the scum discharge and flotation efficiency.
Patent Information
- Application Number
- CN202423210628.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing flotation machines, the addition of new slurry and the stirring action of the agitator cause the lower layer of slurry to surge, which pushes back the scum near the scum outlet side, reducing the amount of scum discharged.
A slurry guide plate is installed inside the flotation chamber of the flotation machine to block the vertical surge of the slurry below and to form a static area on the inner wall of the flotation chamber. Combined with the rear baffle plate and the scum guide roller, the scum is guided to flow forward to avoid backflow and increase the amount of scum discharged.
It significantly improves the discharge of scum and flotation efficiency. Through the design of the slurry guiding device, it reduces the adverse effects of slurry surging on scum and improves the overall efficiency of the flotation machine.
Smart Images
Figure CN223832522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mineral flotation technology, specifically to a slurry guiding device and a flotation machine. Background Technology
[0002] Flotation machines are a common type of mineral processing equipment. Their working principle is based on the difference in contact and adhesion between mineral particles and air bubbles in the flotation cell. During the flotation process, the slurry and gas are thoroughly mixed by the agitation equipment, generating a large number of tiny air bubbles. These air bubbles combine with the useful mineral particles, forming buoyancy that causes the mineral particles to float to the surface of the slurry and form scum, thereby separating the minerals.
[0003] Existing flotation machines include a flotation chamber. Inside the chamber, near the bottom wall, is a power-driven agitator. The front of the chamber is the scum outlet side. A rotating scraper, also powered, is mounted on the chamber to scrape scum from the scum outlet side. During the agitation of the slurry, the agitator draws in gas and ensures thorough mixing, generating bubbles. These bubbles carry mineral particles to the surface of the slurry, forming a scum layer. The rotating scraper, driven by the power unit, scrapes the scum from the flotation chamber for collection and further processing.
[0004] The existing flotation machine has the following problems: the continuous addition of new slurry and the continuous stirring action of the agitator cause the lower layer of slurry to surge vertically upward, which pushes the scum near the scum outlet side back to the rear, thereby reducing the amount of scum discharged. Utility Model Content
[0005] The purpose of this invention is to provide a slurry guiding device and flotation machine to address the above problems and increase the discharge of scum.
[0006] To achieve the above objectives, this utility model discloses a slurry guiding device, which includes a flotation chamber. Its structural feature is that a slurry guiding plate is provided inside the flotation chamber near the inner wall and above the stirring device to block the vertical flow of the slurry below. At least one slurry guiding plate is provided on the inner wall near the scum outlet side of the flotation chamber. With this structure, the slurry guiding plate blocks the vertical flow of the slurry below the scraper, forming a static area above the slurry guiding plate. Scum entering this static area is not affected by the vertical flow of the slurry and will not be pushed back. The increased scum below the scraper increases the scum discharge volume and improves flotation efficiency.
[0007] Furthermore, the slurry guide plate is arranged in a ring along the inner wall of the flotation chamber. With the above structure, a static area is formed along the inner wall of the flotation chamber, which not only prevents the vertical flow of the slurry, but also avoids the backflow of scum caused by the slurry swirling, further increasing the amount of scum discharged and improving the flotation efficiency.
[0008] Furthermore, the slurry guide plate is connected to the inner wall of the flotation chamber. This structure facilitates the installation and fixation of the slurry guide plate, ensuring its secure fixation.
[0009] Furthermore, the slurry guide plate gradually slopes downwards from the side closest to the inner wall of the flotation chamber to the side furthest from the inner wall. This structure prevents material deposition between the inner wall of the flotation chamber and the slurry guide plate.
[0010] Furthermore, a rear baffle is provided inside the flotation chamber, located behind the inner wall of the scum outlet side. The upper edge of the rear baffle is lower than the upper edge of the scum outlet side of the flotation chamber. With this structure, the scum can pass over the rear baffle and enter the scraping working area of the rotating scraper, while also preventing the lower slurry from carrying away the scum.
[0011] Furthermore, the lower part of the rear baffle is provided with a lower baffle section that bends forward, gradually sloping downwards from back to front. With the above structure, the lower baffle section and the slurry guide plate work together to block the vertical flow of the slurry below, ensuring that the scum entering in front of the rear baffle does not flow back. The inclined setting of the lower baffle section can prevent material deposition at the angle between the lower baffle section and the rear baffle.
[0012] Furthermore, a scum guide roller, driven by a power unit, is rotatably installed inside the flotation chamber. The highest point of the scum guide roller is higher than the upper edge of the rear baffle plate but lower than the upper edge of the scum outlet side of the flotation chamber. With this structure, the scum guide roller rotates under the drive of the power unit, guiding the slurry behind the rear baffle plate to flow forward over it, which is beneficial for the scum to accumulate in front of the rear baffle plate, further increasing the scum discharge rate.
[0013] Furthermore, the outer circumference of the scum guide roller is provided with multiple raised ribs. With this structure, the raised ribs on the scum guide roller facilitate the formation of a slurry flow, guiding the scum forward.
[0014] This invention also provides a flotation machine including the aforementioned slurry guiding device. By installing the slurry guiding device on the flotation machine, the problem of scum backflow is improved, thereby increasing the flotation efficiency of the flotation machine.
[0015] Furthermore, a stirring device, driven by a power unit, is installed in the horizontal center of the flotation chamber near the bottom wall. The front of the flotation chamber is the scum outlet side, and a rotating scraper, also driven by a power unit, is installed on the flotation chamber to scrape the scum outwards from the scum outlet side. With this structure, the slurry guiding device can work in conjunction with the stirring device and the rotating scraper to optimize the flotation effect and improve flotation efficiency.
[0016] In summary, the beneficial effects of this utility model are as follows: by setting a slurry guiding device on the flotation machine, this utility model significantly reduces the adverse effects of vertical surging and swirling of the slurry on the scum, greatly increases the discharge of scum, and thus improves the efficiency of flotation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the first embodiment of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present utility model;
[0019] Figure 3 yes Figure 2 The diagram shows the cross-section of the embodiment shown.
[0020] Figure 4 This is a schematic diagram of the structure of the third embodiment of this utility model;
[0021] Figure 5 yes Figure 4 A perspective view of the embodiment shown;
[0022] Figure 6 This is a schematic diagram of an existing flotation machine.
[0023] In the diagram: 1. Flotation chamber, 2. Agitator, 3. Slurry guide plate, 4. Scum outlet side, 5. Rear baffle, 6. Lower baffle, 7. Scum guide roller, 8. Rib, 9. Rotating scraper. Detailed Implementation
[0024] Reference Figure 6The existing flotation machine includes a flotation chamber 1. A stirring device 2, driven by a power unit, is installed in the horizontal center of the flotation chamber 1 near the bottom wall. The front side of the flotation chamber 1 is the scum outlet side 4. A rotating scraper 9, also driven by a power unit, is installed on the flotation chamber 1 to scrape the scum from the scum outlet side 4 outwards. The stirring device 2 agitates the slurry, mixing gas and slurry to generate bubbles. These bubbles carry mineral particles upwards, forming a scum layer. The rotating scraper 9 scrapes the scum from the scum outlet side 4. The existing flotation machine suffers from a problem where the scum near the scum outlet side 4 is pushed back by the vertical surge of the underlying slurry, resulting in a reduced scum discharge.
[0025] The present invention aims to solve the above problems, increase the discharge of scum, and thereby provide a slurry guiding device and a flotation machine.
[0026] Reference Figure 1 In the first embodiment of this utility model, the slurry guiding device includes a flotation chamber 1. A slurry guiding plate 3 is provided inside the flotation chamber 1 near its inner wall and above the stirring device 2 to block the vertical flow of the slurry below. The slurry guiding plate 3 can be located on the inner wall near the scum outlet side 4 of the flotation chamber 1, or it can be arranged in a ring along the inner wall of the flotation chamber 1. The slurry guiding plate 3 blocks the vertical flow of the slurry below the scraper, forming a static area above the slurry guiding plate 3. Scum entering this static area is not affected by the vertical flow of the slurry and will not be pushed back. The increased scum below the scraper increases the scum discharge volume and improves flotation efficiency. When the slurry guiding plate 3 is arranged in a ring along the inner wall of the flotation chamber 1, a static area is formed along the inner wall of the flotation chamber 1, which not only prevents the vertical flow of the slurry but also avoids scum backflow caused by slurry swirling, further increasing the scum discharge volume and improving flotation efficiency.
[0027] To facilitate the installation and fixation of the slurry guide plate 3, and to make the slurry guide plate 3 more secure, the slurry guide plate 3 is connected to the inner wall of the flotation chamber 1.
[0028] Reference Figure 2 , Figure 3 In the second embodiment of this utility model, further improvements are made based on the first embodiment. The improved slurry guide plate 3 gradually tilts downward from the side close to the inner wall of the flotation chamber 1 to the side away from the inner wall of the flotation chamber 1, thereby preventing material deposition between the inner wall of the flotation chamber 1 and the slurry guide plate 3.
[0029] Reference Figure 4 , Figure 5The third embodiment of this utility model further improves upon the second embodiment. In the improved embodiment, a rear baffle plate 5 is provided inside the flotation chamber 1, located behind the inner wall of the scum outlet side 4. The upper edge of the rear baffle plate 5 is lower than the upper edge of the scum outlet side 4 of the flotation chamber 1, allowing the scum to pass over the rear baffle plate 5 and enter the scraping working area of the rotating scraper 9. Simultaneously, it prevents the slurry swirling below from carrying away the scum. The lower part of the rear baffle plate 5 has a lower baffle section 6 formed by bending forward. The lower baffle section 6 gradually slopes downward from back to front. The lower baffle section 6, together with the slurry guide plate 3, blocks the vertical flow of the slurry below, ensuring that the scum entering in front of the rear baffle plate 5 does not flow back. The inclined arrangement of the lower baffle section 6 prevents material deposition at the angle between the lower baffle section 6 and the rear baffle plate 5.
[0030] Reference Figure 4 , Figure 5 In a further improvement of the third embodiment of this utility model, a scum guide roller 7 driven by a power device is rotatably installed inside the flotation chamber 1. The highest point of the scum guide roller 7 is higher than the upper edge of the rear baffle plate 5 and lower than the upper edge of the scum outlet side 4 of the flotation chamber 1. Driven by the power device, the scum guide roller 7 rotates, guiding the slurry behind the rear baffle plate 5 to flow forward over it, which is beneficial for the scum to accumulate in front of the rear baffle plate 5, further increasing the scum discharge rate. Multiple raised ribs 8 are arranged around the outer circumference of the scum guide roller 7. By setting the raised ribs 8 on the scum guide roller 7, it is beneficial to form a slurry flow and guide the scum to flow forward.
[0031] Reference Figures 1 to 5 This utility model also provides a flotation machine, which includes the aforementioned slurry guiding device. By setting the slurry guiding device, the problem of scum backflow is improved, thereby increasing the flotation efficiency of the flotation machine. A stirring device 2, driven by a power unit, is installed in the flotation chamber 1, located at the horizontal center and near the bottom wall. The front side of the flotation chamber 1 is the scum outlet side 4. A rotating scraper 9, driven by a power unit, is installed on the flotation chamber 1 to scrape the scum from the scum outlet side 4 outwards. The slurry guiding device can work in conjunction with the stirring device 2 and the rotating scraper 9 to optimize the flotation effect and improve the flotation efficiency.
[0032] The working principle of this utility model is as follows: By setting a slurry guide plate 3 along the inner wall of the flotation chamber 1, especially near the scum outlet side 4 of the flotation chamber 1, the vertical surge of the slurry under the scraper is blocked, and a static area is formed above the slurry guide plate 3. The scum entering the static area will not be affected by the vertical surge of the slurry and will not be pushed back, thus increasing the scum discharge rate. By setting a rear baffle plate 5, the scum behind can pass over the rear baffle plate 5 and enter the scraping working area of the rotating scraper 9. At the same time, it can also prevent the lower slurry swirling and carrying away the scum, further increasing the scum discharge rate. By setting a scum guide roller 7, the scum is actively guided into the working area of the rotating scraper 9, further increasing the scum discharge rate and greatly improving the flotation efficiency of the flotation machine.
[0033] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.
[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.
Claims
1. A slurry guiding device, comprising a flotation chamber (1), characterized in that, The flotation chamber (1) is provided with a slurry guide plate (3) at a position near the inner wall of the flotation chamber (1) and above the stirring device (2) to block the vertical flow of the slurry below. The slurry guide plate (3) is provided at least once on the inner wall of the scum outlet side (4) of the flotation chamber (1).
2. The slurry guiding device as described in claim 1, characterized in that, The slurry guide plate (3) is provided in a ring along the inner wall of the flotation chamber (1).
3. The slurry guiding device as described in claim 1, characterized in that, The slurry guide plate (3) is connected to the inner wall of the flotation chamber (1).
4. The slurry guiding device as described in claim 1, characterized in that, The slurry guide plate (3) gradually slopes downward from the side closest to the inner wall of the flotation chamber (1) to the side furthest from the inner wall of the flotation chamber (1).
5. The slurry guiding device as described in claim 1, characterized in that, A rear baffle plate (5) is provided inside the flotation chamber (1) at a position behind the inner wall of the scum outflow side (4) of the flotation chamber (1). The upper edge of the rear baffle plate (5) is lower than the upper edge of the scum outflow side (4) of the flotation chamber (1).
6. The slurry guiding device as described in claim 5, characterized in that, The lower part of the rear baffle (5) is provided with a lower baffle (6) formed by bending forward, and the lower baffle (6) gradually slopes downward from back to front.
7. The slurry guiding device as described in claim 5, characterized in that, The flotation chamber (1) is rotatably installed with a scum guide roller (7) driven by a power device. The highest point of the scum guide roller (7) is higher than the upper edge of the rear baffle plate (5) and lower than the upper edge of the scum outflow side (4) of the flotation chamber (1).
8. The slurry guiding device as described in claim 7, characterized in that, The outer circumferential surface of the scum guide roller (7) is covered with multiple raised ribs (8).
9. A flotation machine, characterized in that, The flotation machine includes the slurry guiding device as described in any one of claims 1 to 8.
10. The flotation machine as described in claim 9, characterized in that, A stirring device (2) driven by a power unit is installed in the flotation chamber (1) of the flotation machine at a position in the horizontal middle and near the bottom wall. The front side of the flotation chamber (1) is the scum outlet side (4). A rotating scraper (9) driven by a power unit is installed on the flotation chamber (1) to scrape the scum in the flotation chamber (1) outward from the scum outlet side (4).