Red mud separating and settling device

Abstract

The utility model relates to a red mud separating and settling device, which belongs to the technical field of metallurgical production and comprises a barrel and a separating and settling mechanism mounted in the barrel and used for separating sludge and solution in red mud. The separating and settling mechanism comprises a disc rotationally arranged in the cylinder body, a filter screen cylinder fixedly arranged at the edge of the top of the disc, and a driving mechanism arranged at the top of the cylinder body and used for driving the disc to rotate, and the driving mechanism drives the rotary disc to rotate, so that red mud in the filter screen cylinder can be separated and settled through centrifugal force; after the electric push rod is shortened, the scraping plate can abut against the inner side wall of the filter screen cylinder, the scraping plate can conveniently stir the interior of the rotating filter screen cylinder and scrape off sludge attached to the inner side wall of the filter screen cylinder, the separation and sedimentation rate of red mud is increased, the scraping plate can be disengaged from the inner side wall of the filter screen cylinder by extending the electric push rod, and therefore the red mud can be separated from the inner side wall of the filter screen cylinder. And the bristles are inserted into the meshes of the rotating filter screen cylinder to dredge the meshes of the filter screen cylinder, so that the normal use of the device is kept.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical production technology, specifically relating to a red mud separation and sedimentation device. Background Technology

[0002] Red mud is an industrial solid waste discharged during the extraction of alumina in the aluminum industry. Because of its high iron oxide content and appearance resembling reddish soil, it is called red mud. After bauxite is leached, a mixed slurry containing red mud and sodium aluminate solution is obtained. After dilution, sedimentation or filtration is required to separate the red mud and solution, obtaining a sodium aluminate solution suitable for seed crystal decomposition. The effectiveness of this sedimentation separation has a significant impact on the quality of the final product, as well as production costs and economic benefits.

[0003] Patent CN220159369U discloses "a red mud separation and settling device, relating to the field of metallurgical production technology, including a circular trough, with an acceleration component fixedly connected to the middle of the top of the circular trough. Through the arrangement of the acceleration component, the cleaning component, and the settling component, mud is poured into a filter cone, where it is then filtered and settled. Subsequently, motor A drives drive rod A to rotate, which in turn drives the stirring rod to rotate, thereby agitating the red mud. Under centrifugal force, the solid red mud converges towards the center, accelerating the filtration and settling process. After settling, motor B drives drive rod B to rotate, which in turn drives a rotating plate to rotate. The rotating plate then drives scrapers on both sides to rotate, scraping away the red mud adsorbed by the filter cone as the scrapers rotate."

[0004] Although the scraper rotation in the prior art can remove the red mud adsorbed on the inner wall of the filter cone, after long-term use, the mud residue in the red mud is easy to enter and block the mesh of the filter cone. The scraper cannot clear the mesh of the filter cone, causing the mud residue to remain in the mesh of the filter cone and causing blockage, thus affecting the normal use of the filter cone and other separation and sedimentation mechanisms. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a red mud separation and sedimentation device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A red mud separation and settling device includes a cylinder and a separation and settling mechanism installed inside the cylinder for separating mud residue and solution in red mud. The separation and settling mechanism includes a disc rotatably disposed inside the cylinder, a filter screen cylinder fixed at the top edge of the disc, and a drive mechanism disposed at the top of the cylinder for driving the disc to rotate.

[0008] The cylinder is equipped with a clearing mechanism, which includes an electric push rod fixedly installed on the inner side wall of the cylinder, a support rod fixedly installed at one end of the electric push rod, a number of bristles fixedly installed on one side of the support rod and used to be inserted into the mesh of the filter cylinder after the electric push rod is extended, and a scraper installed on one side of the support rod and used to be used to abut against the inner side wall of the filter cylinder after the electric push rod is shortened.

[0009] As a further optimization of this utility model, a feed pipe for feeding red mud into the filter screen cylinder is fixedly provided at the top of the cylinder, and a drain pipe for discharging the separated solution is fixedly provided at the bottom of the inner wall of the cylinder.

[0010] As a further optimization of this utility model, the driving mechanism includes a motor fixedly mounted on the top of the cylinder, a rotating rod mounted at the bottom of the motor output end and coaxial with the cylinder, and a connecting rod fixedly mounted on both sides of the bottom of the rotating rod and between the top of the disc.

[0011] As a further optimization of this utility model, the bottom of the disc is provided with a plurality of spheres that rotatably abut against the bottom of the inner wall of the cylinder.

[0012] As a further optimization of this utility model, a sludge suction pipe with its bottom end penetrating the cylinder is rotatably provided at the center of the disc, and a sludge suction pump is fixedly installed at the bottom of the cylinder at the bottom end of the sludge suction pipe.

[0013] As a further optimization of this utility model, a connecting plate is fixedly provided between the top of the bearing rod and the scraper, located above the filter screen cylinder, and the filter screen cylinder is located between the brush bristles and the scraper.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The rotating disc, driven by a drive mechanism, separates and settles the red mud inside the filter cylinder using centrifugal force. Shortening the electric push rod allows the scraper to press against the inner wall of the filter cylinder, facilitating agitation and scraping away the mud adhering to the inner wall, thus increasing the red mud separation and settling rate. Extending the electric push rod allows the scraper to detach from the inner wall of the filter cylinder, and the bristles to be inserted into the mesh of the rotating filter cylinder to clear the mesh and maintain normal operation. The alternating use of the scraper and bristles ensures that their functions do not interfere with each other, making it convenient to use.

[0016] 2. The system includes a drain pipe to discharge the solution separated by the filter cylinder, and a sludge extraction pipe and pump to extract the sludge that has settled to the bottom of the filter cylinder. This allows for the rapid discharge of the products after red mud separation and settling, improving work efficiency. The alternating use of scrapers and brushes prevents the brushes from prolonged contact with the rotating filter cylinder, thus reducing wear and extending the service life of the brushes and other components. The spheres provide support for the filter cylinder and other components, improving their stability during rotation and reducing resistance and wear on the rotating discs and other components. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure and internal layout of this utility model;

[0019] Figure 3 This is a utility model Figure 2 Enlarged view of the A-structure;

[0020] Figure 4 This is a utility model Figure 2 Enlarged view of the B-structure.

[0021] In the diagram: 1. Cylinder; 11. Feed pipe; 12. Drain pipe; 13. Sludge suction pipe; 14. Sludge pump; 2. Disc; 21. Filter screen cylinder; 22. Ball; 3. Motor; 31. Rotating rod; 32. Connecting rod; 4. Electric push rod; 41. Bearing rod; 42. Brush bristles; 43. Connecting plate; 44. Scraper. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example

[0024] like Figure 1-4 As shown, a red mud separation and settling device includes a cylinder 1 and a separation and settling mechanism. The cylinder 1 is a hollow cylindrical shape, and the cylinder 1 includes a bottom and a cylinder cover installed on the top of the bottom using bolts or other means, so that the staff can remove the cylinder cover to inspect and maintain the internal components of the cylinder 1.

[0025] like Figure 1-2As shown, the separation and sedimentation mechanism is installed inside the cylinder 1 and is used to separate the mud and solution in the red mud. The separation and sedimentation mechanism includes a disc 2 that is rotatably installed inside the cylinder 1, a filter screen cylinder 21 that is fixed at the top edge of the disc 2, and a drive mechanism installed at the top of the cylinder 1 for driving the disc 2 to rotate. The disc 2 can support and fix the filter screen cylinder 21. The drive mechanism can drive the disc 2 and the filter screen cylinder 21 to rotate, so that the solution in the red mud in the filter screen cylinder 21 will be thrown out through the mesh of the filter screen cylinder 21 and flow into the bottom of the cylinder 1 under the action of centrifugal force, while the mud in the red mud in the filter screen cylinder 21 will be separated and settled at the bottom of the filter screen cylinder 21, thereby separating and settling the red mud.

[0026] like Figure 1-3 As shown, the drive mechanism includes a motor 3 fixedly mounted on the top of the cylinder 1, a rotating rod 31 mounted on the bottom of the output end of the motor 3 and coaxial with the cylinder 1, and a connecting rod 32 fixedly mounted on both sides of the bottom of the rotating rod 31 and the top of the disc 2. The connecting rod 32 can connect the disc 2 and the rotating rod 31. After the motor 3 runs, it will drive the disc 2 to rotate through the rotating rod 31 and the connecting rod 32.

[0027] like Figure 1-3 As shown, the bottom of the disc 2 is provided with several balls 22 that rotatably abut against the bottom of the inner wall of the cylinder 1. The connection between the disc 2 and the balls 22 is the same as the connection of the existing ball joint rotation mechanism. The balls 22 can support the disc 2 and the filter cylinder 21 and other components, improve the stability of the filter cylinder 21 and other components when rotating, and reduce the resistance and wear of the disc 2 and other components when rotating through the rotation of the balls 22.

[0028] like Figure 1-2 As shown, the top of the cylinder 1 is fixedly provided with a feed pipe 11 for feeding red mud into the filter cylinder 21, and the bottom of the inner wall of the cylinder 1 is fixedly provided with a drain pipe 12 for discharging the separated solution. The bottom end of the feed pipe 11 is located inside the filter cylinder 21. The operator can feed the red mud raw material into the filter cylinder 21 through the feed pipe 11. After the filter cylinder 21 is rotated, the separated solution is discharged from the cylinder 1 through the drain pipe 12, thereby discharging the device. A valve can be installed in the drain pipe 12.

[0029] like Figure 1-2 As shown, a sludge suction pipe 13 with its bottom end penetrating the cylinder 1 is rotatably provided at the center of the disc 2. A sludge suction pump 14 is fixedly installed at the bottom of the cylinder 1 at the bottom of the sludge suction pipe 13. A sealing element can be provided at the junction of the disc 2 and the sludge suction pipe 13, and a valve can be provided at the top of the sludge suction pipe 13. After the sludge suction pump 14 is running, it will use the sludge suction pipe 13 to extract the mud and sludge separated and settled at the bottom of the filter screen cylinder 21, so as to quickly discharge the products after the red mud is separated and settled.

[0030] like Figure 2 and Figure 4As shown, a clearing mechanism is provided inside the cylinder 1. The clearing mechanism includes an electric push rod 4 fixedly installed on the inner wall of the cylinder 1, a support rod 41 fixedly installed at one end of the electric push rod 4, a number of bristles 42 fixedly installed on one side of the support rod 41 and used to be inserted into the mesh of the filter cylinder 21 after the electric push rod 4 is extended, and a scraper 44 installed on one side of the support rod 41 and used to be in contact with the inner wall of the filter cylinder 21 after the electric push rod 4 is shortened. A connecting plate 43 is fixedly installed between the top of the support rod 41 and the scraper 44 and located above the filter cylinder 21. The filter cylinder 21 is located between the bristles 42 and the scraper 44. The connecting plate 43 can connect the support rod 41 and the scraper 44, and the support rod 41 can connect the bristles 42 and the electric push rod 4.

[0031] When the electric push rod 4 extends or retracts, it drives the bearing rod 41, brush bristles 42, connecting plate 43, and scraper 44 to move laterally. When the electric push rod 4 shortens, it can press the scraper 44 against the inner wall of the filter cylinder 21, which facilitates the scraper 44 to stir the rotating filter cylinder 21 and scrape off the mud adhering to the inner wall of the filter cylinder 21, thereby improving the separation and settling rate of red mud. When the electric push rod 4 extends, it can disengage the scraper 44 from the inner wall of the filter cylinder 21 and insert the brush bristles 42 into the mesh of the rotating filter cylinder 21 to unclog the mesh. This allows the scraper 44 and brush bristles 42 to be used alternately, avoiding the brush bristles 42 from being in contact with the rotating filter cylinder 21 for a long time and thus preventing increased wear and extending the service life of the brush bristles 42 and other components.

[0032] It should be noted that, in use, this red mud separation and sedimentation device first feeds the red mud raw material into the filter cylinder 21 through the feed pipe 11, and then turns on the motor 3. After the motor 3 starts running, it drives the disc 2 to rotate through the rotating rod 31 and the connecting rod 32. The rotation of the disc 2 will drive the filter cylinder 21 to rotate accordingly, so that the solution in the red mud in the filter cylinder 21 will be thrown out through the mesh of the filter cylinder 21 and flow into the bottom of the cylinder 1 under the action of centrifugal force. The mud residue in the red mud in the filter cylinder 21 will be separated and settled at the bottom of the filter cylinder 21, thereby separating and settling the red mud.

[0033] At the same time, after the electric push rod 4 is shortened, the scraper 44 can be pressed against the inner wall of the filter cylinder 21, which makes it easier for the scraper 44 to stir the red mud in the rotating filter cylinder 21 and scrape off the mud adhering to the inner wall of the filter cylinder 21, thereby improving the separation and settling rate of the red mud.

[0034] When it is necessary to unclog the filter cylinder 21, the electric push rod 4 can be extended to disengage the scraper 44 from the inner wall of the filter cylinder 21. At the same time, the bristles 42 will be inserted into the mesh of the rotating filter cylinder 21 to unclog the mesh. The scraper 44 and the bristles 42 can be used alternately so that the scraping function of the scraper 44 on the inner wall of the filter cylinder 21 and the unclogging function of the bristles 42 on the inner wall of the filter cylinder 21 do not interfere with each other.

[0035] Furthermore, the solution separated after the filter cylinder 21 rotates will be discharged from the cylinder 1 through the drain pipe 12, thereby discharging the discharge device. After the sludge pump 14 is running, it will extract the mud and sludge separated and settled at the bottom of the filter cylinder 21 through the sludge pump 13 to quickly discharge the products after the red mud separation and settling, thereby improving work efficiency.

[0036] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A red mud separation and settling device, comprising a cylinder (1) and a separation and settling mechanism installed inside the cylinder (1) for separating mud residue from solution in red mud. Its characteristics are: The separation and settling mechanism includes a disc (2) that is rotatably disposed inside the cylinder (1), a filter screen cylinder (21) that is fixed at the top edge of the disc (2), and a drive mechanism disposed at the top of the cylinder (1) for driving the disc (2) to rotate. The cylinder (1) is provided with a clearing mechanism, which includes an electric push rod (4) fixedly installed on the inner wall of the cylinder (1), a bearing rod (41) fixedly installed on one end of the electric push rod (4), a number of bristles (42) fixedly installed on one side of the bearing rod (41) and used to be inserted into the mesh of the filter cylinder (21) after the electric push rod (4) is extended, and a scraper (44) installed on one side of the bearing rod (41) and used to abut against the inner wall of the filter cylinder (21) after the electric push rod (4) is shortened.

2. The red mud separation and sedimentation device according to claim 1, characterized in that: The top of the cylinder (1) is fixedly provided with a feed pipe (11) for feeding red mud into the filter cylinder (21), and the bottom of the inner wall of the cylinder (1) is fixedly provided with a drain pipe (12) for discharging the separated solution.

3. The red mud separation and sedimentation device according to claim 1, characterized in that: The drive mechanism includes a motor (3) fixedly mounted on the top of the cylinder (1), a rotating rod (31) mounted on the bottom of the output end of the motor (3) and coaxial with the cylinder (1), and a connecting rod (32) fixedly mounted on both sides of the bottom of the rotating rod (31) and the top of the disc (2).

4. The red mud separation and sedimentation device according to claim 1, characterized in that: The bottom of the disc (2) is provided with a number of spheres (22) that rotatably abut against the bottom of the inner wall of the cylinder (1).

5. The red mud separation and sedimentation device according to claim 1, characterized in that: The disc (2) is provided with a rotatable suction pipe (13) with its bottom end penetrating the cylinder (1) at the center. The suction pipe (13) is provided with a suction pump (14) fixedly installed at the bottom of the cylinder (1).

6. The red mud separation and sedimentation device according to claim 1, characterized in that: A connecting plate (43) is fixedly provided between the top of the support rod (41) and the scraper (44) above the filter cylinder (21), the filter cylinder (21) being located between the bristles (42) and the scraper (44).

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