Ore pulp guiding device with desilting function and flotation machine

Abstract

The utility model relates to the technical field of mineral flotation, in particular to an ore pulp guiding device with a desilting function and a flotation machine. Comprising a flow guide mechanism and further comprises an air inlet pipe, the air inlet pipe communicates with the top of the flow guide mechanism, the bottom of the flow guide mechanism communicates with a desilting pipe arranged along the inner wall of the flotation machine, the desilting pipe is located at the bottom of the flow guide mechanism, and the bottom of the desilting pipe is fixedly connected and communicates with a desilting spray pipe; by means of the structure, the air blower enables the dredging spray pipe to blow out air through conduction of the dredging pipe, so that deposited mineral powder is driven to float again and continues to be attached to bubbles under the action of the flow guide mechanism, and therefore the ore pulp flotation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mineral flotation technology, specifically to a slurry guiding device and flotation machine with dredging function. Background Technology

[0002] After ore mining, different minerals need to be screened, which requires the use of flotation machines. The main principle of flotation machines is to utilize the differences in the surface properties of minerals, using the buoyancy of air bubbles to carry away minerals with poor hydrophilicity. The main component of a flotation machine is the flow guiding mechanism. The flow guiding mechanism causes the slurry to flow, and air is forced into the flotation machine, generating air bubbles. Mineral powders with poor hydrophilicity float on the surface of the slurry by adhering to the air bubbles and are then scraped off by a scraper.

[0003] In existing technologies, the flow guiding mechanism is mainly composed of an impeller. The impeller rotates to drive the slurry to rotate, thereby accelerating the generation of bubbles and the adhesion of minerals to bubbles. However, during use, it has been found that during long-term stirring, some mineral powder will fall to the bottom of the flotation box under its own gravity and be deposited around the bottom of the flotation box under the action of the impeller. This affects the adhesion of this part of the mineral powder to bubbles, resulting in a reduction in the overall efficiency of the flotation process. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a slurry guiding device and flotation machine with dredging function, thereby solving the problem in the prior art where some minerals deposit around the bottom of the flotation box, leading to a reduction in the overall efficiency of the flotation process.

[0005] This utility model is achieved using the following technical solution: a slurry guiding device with dredging function, including a guiding mechanism and an air inlet pipe. The air inlet pipe is connected to the top of the guiding mechanism, and the bottom of the guiding mechanism is connected to a dredging pipe arranged along the inner wall of the flotation machine. The dredging pipe is located at the bottom of the guiding mechanism, and the bottom of the dredging pipe is fixedly connected to and connected to a dredging spray pipe.

[0006] Through the above structure, the blower, through the sludge removal pipe, causes the sludge removal nozzle to blow out air, thereby causing the deposited mineral powder to float up again. Under the action of the flow guiding mechanism, it continues to adhere to the air bubbles, thereby improving the efficiency of mineral pulp flotation.

[0007] Furthermore, the air inlet pipe is fixedly connected to and communicates with a branch pipe at one end near the flow guiding mechanism. The flow guiding mechanism includes a branch pipe fixedly connected to and communicates with the bottom of the branch pipe. Several first flow guiding nozzles are provided on the branch pipe to facilitate the flow of the slurry. The first flow guiding nozzles are fixedly connected to and communicate with the branch pipe. The arrangement of the first flow guiding nozzles not only facilitates the flow of the slurry but also increases the amount of air entering the slurry, further improving the flotation efficiency of the slurry.

[0008] Furthermore, the first diversion nozzle is in an "L" shape. A number of first diversion nozzles are arranged along the transverse direction and are circumferentially arrayed on the branch pipe. The nozzle of the first diversion nozzle faces the horizontal direction. By setting the first diversion nozzle as an "L" shape and distributing it along the circumferential array direction, the water flow can be rotated under the drive of the first diversion nozzle, and the amount of air in the pulp can be increased even without an impeller.

[0009] Furthermore, a number of second diversion nozzles are fixedly installed and connected to the branch pipe. The second diversion nozzles are located below the first diversion nozzles. The structure of the second diversion nozzle is the same as that of the first diversion nozzle, and the direction of the nozzle of the second diversion nozzle is opposite to that of the nozzle of the first diversion nozzle. By setting the second diversion nozzles with a direction opposite to that of the first diversion nozzles, the air intake is further increased, and part of the stress generated by the first diversion nozzles can be offset, making the connection between the branch pipe and the shunt pipe more stable and increasing the stability of the device.

[0010] Furthermore, a number of straight nozzles are fixedly installed and connected to the bottom of the branch pipe. The number of straight nozzles is arranged horizontally and is circumferentially arrayed on the branch pipe. Through the arrangement of a number of straight pipes, the ore powder in the pulp will be blown up again by the straight pipes when it sinks, thereby reducing the amount of ore powder sinking and further improving the flotation efficiency.

[0011] Furthermore, multiple groups are provided for the branch pipe, the first diversion nozzle, the second diversion nozzle, and the straight nozzle. Through the above structure, the flotation efficiency of the pulp is further improved.

[0012] Furthermore, the dredging pipe is in a "day" shape, and the middle part of the dredging pipe is fixedly connected and communicated with the bottom end of the branch pipe. Through the setting of the above structure, the dredging pipe can cover the bottom of the flotation machine to the greatest extent, and the blowing area will not overlap, increasing the utilization rate of the dredging pipe.

[0013] A flotation machine using a pulp diversion device with a dredging function includes a flotation tank. The diversion mechanism, the dredging pipe, and the dredging nozzle are all located in the flotation tank. The two ends of the dredging pipe are fixedly connected to both sides of the bottom of the flotation tank, and the nozzle of the dredging nozzle faces the bottom surface of the flotation tank.

[0014] Through the above structure, the deposition of ore powder at the bottom of the flotation tank can be effectively prevented, thereby improving the flotation efficiency.

[0015] Furthermore, a motor is fixedly connected to the top of the flotation tank, and a drive pulley is fixedly connected to the output end of the motor. The drive pulley is connected to a driven pulley via a belt drive, and a rotating shaft is fixedly connected to the driven pulley. Both ends of the rotating shaft are rotatably connected to the flotation tank, and scrapers for removing foam are fixedly installed on the rotating shaft. By setting up the scrapers, the foam adsorbed with mineral powder floating on the surface can be scraped off, thereby achieving flotation.

[0016] Furthermore, a flotation box is fixedly installed on the front side of the flotation tank to store the foam scraped off by the scraper. The flotation box allows for temporary storage of the scraped-off foam.

[0017] In summary, the beneficial effects of this utility model are as follows:

[0018] 1. By setting up sludge removal pipes and sludge removal nozzles, under the action of a blower, the sludge removal nozzles blow air towards the bottom of the flotation box, which blows up the mineral powder deposited at the bottom of the flotation box again, thereby accelerating the adhesion of mineral powder and air bubbles and improving the overall flotation efficiency.

[0019] 2. By setting up the first and second guide nozzles, the slurry can both flow and increase the air intake in the flotation box, thereby enabling bubbles to be generated more quickly and the mineral powder to adhere to the bubbles more quickly, further improving the efficiency of slurry flotation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a slurry diversion device with dredging function;

[0021] Figure 2 A schematic diagram of the overall structure of a flotation machine using a slurry diversion device with sludge removal function;

[0022] Figure 3 This is a schematic diagram of the structure of the flotation box and the foam box working together.

[0023] In the diagram: 1-Blower; 2-Inlet pipe; 3-Diverter pipe; 4-Branch pipe; 5-Motor; 6-Drive pulley; 7-Belt; 8-Driven pulley; 9-Scraper; 10-Foam box; 11-Flotation box; 12-Sludge removal pipe; 13-First guide nozzle; 14-Direct nozzle; 15-Sludge removal nozzle; 16-Second guide nozzle; 17-Shaft. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "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.

[0026] The following is a description of preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0027] like Figure 1 As shown, this utility model provides a slurry guiding device with sludge removal function, including a guiding mechanism and an air inlet pipe 2. One end of the air inlet pipe 2 is fixedly connected to and communicates with the air outlet of a blower 1, and the other end is fixedly connected to and communicates with a diverter pipe 3. The bottom of the diverter pipe 3 communicates with the top of the guiding mechanism. The bottom of the guiding mechanism is connected to a sludge removal pipe 12 arranged along the inner wall of the flotation machine. The sludge removal pipe 12 is located at the bottom of the guiding mechanism, and the bottom of the sludge removal pipe 12 is provided with several downward-facing sludge removal nozzles 15, which communicate with the sludge removal pipe 12. The sludge removal nozzles 15 can blow up the deposited mineral powder again, allowing it to continue to mix in the slurry and adhere to the air bubbles. In addition, the setting of the sludge removal nozzles 15 can also increase the air content in the slurry, enabling faster and more numerous bubble generation during the flotation process, thus improving the flotation efficiency. The blower 1 used in this device is an air suspension blower 1, which can generate high-pressure gas, making the sludge removal process faster.

[0028] The flow guiding mechanism described above can continue to use an impeller device. In this case, the diversion pipe 3 can be connected to the air inlet channel of the impeller. Alternatively, other devices that can make the slurry flow can be used. In this embodiment, the flow guiding mechanism includes a branch pipe 4 that is fixedly connected and connected to the top of the diversion pipe 3. The branch pipe 4 is provided with a plurality of first flow guiding nozzles 13 for making the slurry flow. The first flow guiding nozzles 13 are fixedly connected and connected to the branch pipe 4. Specifically, the first flow guiding nozzles 13 are L-shaped. A plurality of first flow guiding nozzles 13 are arranged in the transverse direction and distributed in a circumferential array on the branch pipe 4. The nozzles of the first flow guiding nozzles 13 face the horizontal direction.

[0029] Driven by the blower 1, the first guide nozzle 13 sprays out high-pressure gas. Due to the circumferential array distribution of the first guide nozzle 13, the high-pressure gas sprayed out by them will drive the slurry to rotate and flow, thus producing the same effect as the impeller. On this basis, due to the spraying of high-pressure gas, the bubbles are generated faster and more, thereby improving the flotation efficiency and saving more energy.

[0030] When a number of first diversion nozzles 13 eject high-pressure gas, relatively large stress will be generated, resulting in easy fracture at the connection between the branch pipe 4 and the shunt pipe 3. In order to offset this part of the stress, a number of second diversion nozzles 16 are fixedly installed and connected on the branch pipe 4. The second diversion nozzles 16 are located below the first diversion nozzles 13. The structure of the second diversion nozzles 16 is the same as that of the first diversion nozzles 13, and the orientation of the nozzle of the second diversion nozzles 16 is opposite to that of the first diversion nozzles 13. Through the second diversion nozzles 16, part of the stress generated by the first diversion nozzles 13 can be offset, making the device more stable and having a longer service life.

[0031] As a further illustration of this embodiment, a number of direct injection nozzles 14 are fixedly installed and connected at the bottom of the branch pipe 4. The number of direct injection nozzles 14 are arranged horizontally and are circumferentially arrayed on the branch pipe 4. Through the arrangement of the number of direct injection nozzles 14, the ore powder in the pulp will be blown up again by the direct injection nozzles 14 when sinking, thereby reducing the amount of ore powder sinking and further improving the flotation efficiency.

[0032] As a further illustration of this embodiment, in order to further improve the flotation efficiency, the branch pipe 4, the first diversion nozzles 13, the second diversion nozzles 16, and the direct injection nozzles 14 are all provided with multiple groups. Multiple branch pipes 4 are installed in parallel on the shunt and are connected to the shunt pipe 3.

[0033] As a further illustration of this embodiment, the dredging pipe 12 is in the shape of a "day". The middle part of the dredging pipe 12 is fixedly connected and communicated with the bottom end of the branch pipe 4. Dredging nozzles 15 are provided at the bottoms of the four side pipes and the middle pipe of the dredging pipe 12, so as to make the coverage of the dredging process more comprehensive.

[0034] The present utility model also provides a flotation machine using the above-mentioned pulp diversion device with a dredging function, including a flotation tank 11. The bottom of the branch pipe 4, the first diversion nozzles 13, the second diversion nozzles 16, the direct injection nozzles 14, the dredging pipe 12, and the dredging nozzles 15 are all located inside the flotation tank 11. The blower 1 is fixedly installed behind the flotation tank 11. The top of the branch pipe 4 passes through the top surface of the flotation tank 11 and is fixedly connected to the shunt pipe 3. The shunt pipe 3 is fixedly installed on the top of the flotation tank 11. Both ends of the dredging pipe 12 are fixedly connected to both sides of the bottom of the flotation tank 11, and the nozzle of the dredging nozzle 15 faces the bottom surface of the flotation tank 11.

[0035] A motor 5 is fixedly connected to the top of the flotation tank 11. The output end of the motor 5 is fixedly connected to a driving pulley 6. The driving pulley 6 is connected to a driven pulley 8 through a belt 7. The driven pulley 8 is fixedly connected to a rotating shaft 17. Both ends of the rotating shaft 17 are rotatably connected to the flotation tank 11. A scraper 9 for scraping off the floating foam is fixedly installed on the rotating shaft 17. A floating foam box 10 for storing the floating foam scraped by the scraper 9 is also fixedly installed on the front side of the flotation tank 11.

[0036] The operating principle of this device is as follows: During operation, blower 1 and motor 5 need to be started. Blower 1, first guide nozzle 13 and second guide nozzle 16 drive the slurry to flow and inject a large amount of air into the slurry, causing a large number of bubbles to be generated. The mineral powder adheres to the bubbles and floats on the surface of the slurry, and is then scraped away by scraper 9. As flotation continues for a long time, some mineral powder may also settle at the bottom of the flotation tank 11. The settled mineral powder will be blown up again by the cleaning nozzle 15, so that it can be remixed with the slurry.

[0037] In summary, the slurry guiding device and flotation machine with sludge removal function provided by the present invention, through the setting of sludge removal pipe 12 and sludge removal nozzle 15, under the action of blower 1, the sludge removal nozzle 15 blows air to the bottom of flotation box 11, blowing up the mineral powder deposited at the bottom of flotation box 11 again, thereby accelerating the adhesion of mineral powder and air bubbles and improving the overall flotation efficiency; through the setting of first guiding nozzle 13 and second guiding nozzle 16, the slurry can both generate flow and increase the air intake in flotation box 11, thereby enabling air bubbles to be generated faster and mineral powder to adhere to air bubbles faster, further improving the efficiency of slurry flotation.

[0038] 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 diversion device with dredging function, comprising a diversion mechanism, characterized in that, It also includes an air inlet pipe (2). The air inlet pipe (2) is connected to the top of the flow guiding mechanism. The bottom of the flow guiding mechanism is connected to a dredging pipe (12) arranged along the inner wall of the flotation machine. The dredging pipe (12) is located at the bottom of the flow guiding mechanism. The bottom of the dredging pipe (12) is fixedly connected and communicated with a dredging spray pipe (15).

2. The slurry diversion device with dredging function according to claim 1, characterized in that, One end of the air inlet pipe (2) close to the flow guiding mechanism is fixedly connected and communicated with a shunt pipe (3). The flow guiding mechanism includes a branch pipe (4) fixedly connected and communicated with the bottom of the shunt pipe (3). A number of first flow guiding spray pipes (13) for making the pulp flow are arranged on the branch pipe (4). The first flow guiding spray pipe (13) is fixedly connected and communicated with the branch pipe (4).

3. The slurry diversion device with dredging function according to claim 2, characterized in that, The first flow guiding spray pipe (13) is in an "L" shape. A number of first flow guiding spray pipes (13) are arranged in the horizontal direction and are circumferentially arrayed on the branch pipe (4). The spray nozzle of the first flow guiding spray pipe (13) faces the horizontal direction.

4. The slurry diversion device with dredging function according to claim 3, characterized in that, A number of second flow guiding spray pipes (16) are also fixedly installed and communicated on the branch pipe (4). The second flow guiding spray pipe (16) is located below the first flow guiding spray pipe (13). The structure of the second flow guiding spray pipe (16) is the same as that of the first flow guiding spray pipe (13). The spray nozzle orientation of the second flow guiding spray pipe (16) is opposite to that of the first flow guiding spray pipe (13).

5. The slurry diversion device with dredging function according to claim 4, characterized in that, A number of straight spray pipes (14) are also fixedly installed and communicated at the bottom of the branch pipe (4). The number of straight spray pipes (14) is arranged horizontally and is circumferentially arrayed on the branch pipe (4).

6. The slurry diversion device with dredging function according to claim 5, characterized in that, The branch pipe (4), the first flow guiding spray pipe (13), the second flow guiding spray pipe (16), and the straight spray pipe (14) are all provided with multiple groups.

7. The slurry diversion device with dredging function according to claim 2, characterized in that, The dredging pipe (12) is in an "O" shape. The middle part of the dredging pipe (12) is fixedly connected and communicated with the bottom end of the branch pipe (4).

8. A flotation machine using the slurry guiding device with dredging function as described in any one of claims 1-7, comprising a flotation box (11), characterized in that, The flow guiding mechanism, the dredging pipe (12), and the dredging spray pipe (15) are all located in the flotation tank (11). The two ends of the dredging pipe (12) are fixedly connected to both sides of the bottom of the flotation tank (11). The spray nozzle of the dredging spray pipe (15) faces the bottom surface of the flotation tank (11).

9. The flotation machine according to claim 8, characterized in that, A motor (5) is fixedly connected to the top of the flotation tank (11). The output end of the motor (5) is fixedly connected with a driving pulley (6). The driving pulley (6) is传动连接有从动皮带轮(8),从动皮带轮(8)固定连接有转轴(17),转轴(17)的两端与浮选箱(11)转动连接,转轴(17)上固定安装有用于刮除浮沫的刮板(9)。(原句中“传动连接有从动皮带轮(8)”表述有误,推测为“传动连接有从动皮带轮(8)”,翻译如下)driven by a belt (7) to be connected with a driven pulley (8). The driven pulley (8) is fixedly connected with a rotating shaft (17). The two ends of the rotating shaft (17) are rotatably connected to the flotation tank (11). A scraper (9) for scraping off the floating foam is fixedly installed on the rotating shaft (17).

10. The flotation machine according to claim 9, characterized in that, A floating foam box (10) for storing the floating foam scraped by the scraper (9) is also fixedly installed on the front side of the flotation tank (11).

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