Overflow weir cleaning mechanism of thickener

Abstract

The utility model discloses a thickener overflow weir cleaning mechanism which comprises a thickener body, a plurality of supporting rods are annularly and fixedly connected to the inner side wall of the thickener body, a multi-driving mechanism can drive a scraper to rotate on the top face of an overflow weir of the thickener body through a baffle, and the cross section of an overflow hole is semicircular. The driving mechanism comprises a dovetail block fixed to the top face of the supporting rod, the side end of the gear ring is meshed with a gear, a motor is fixedly connected to the center of the top face of the gear, the inner wall of the gear ring is fixedly connected with the baffle, and the V-shaped sliding rod is sleeved with a compression spring which is arranged on the side, away from the push plate, of the baffle. The driving mechanism can drive the scraping plate to rotate on the top face of the overflow weir of the thickener body through the baffle to clean the top face of the overflow weir of the thickener body and push the raw pulp adhered to the top face of the scraping plate into the thickener body at the same time, waste and loss of the raw pulp are reduced, and meanwhile the top face of the overflow weir does not need to be manually cleaned.

Description

Technical fields:

[0001] This utility model relates to the field of mineral processing technology, specifically to a thickener overflow weir cleaning mechanism. Background technology:

[0002] A thickener is a solid-liquid separation device based on gravity settling. It is usually a shallow cylindrical tank with a conical bottom, constructed using concrete, wood, or welded metal plates as structural materials. It can concentrate heavy mineral slurry into a bottom flow slurry with a solid content through gravity settling. The clear liquid produced at the top of the thickener is discharged through the overflow weir.

[0003] During operation, some slurry will adhere to the top surface of the overflow weir along with the foam, resulting in waste of raw slurry. Staff need to clean the top surface of the overflow weir regularly with a scraper. The top surface of the overflow weir has a large area, which requires a lot of time and effort to clean. If not handled carefully, the raw slurry will fall back and be discharged with the overflow water, resulting in waste of raw slurry. Utility Model Content:

[0004] Therefore, the purpose of this utility model is to provide a thickener overflow weir cleaning mechanism to overcome the limitations of the existing technology. During the operation of the overflow weir, some slurry will adhere to the top surface of the overflow weir along with the foam, resulting in the waste of raw slurry. It is necessary for the staff to clean the top surface of the overflow weir regularly with a scraper. The top surface of the overflow weir has a large area and requires a lot of time and effort to clean. If not careful, the raw slurry will fall back and be discharged with the overflow water, resulting in the waste of raw slurry.

[0005] This utility model is implemented by the following technical solution:

[0006] A thickener overflow weir cleaning mechanism includes a thickener body. Multiple support rods are annularly connected to the inner wall of the thickener body. A drive mechanism is fixedly connected to the top surface of the support rods. A baffle is fixedly connected to the output end of the drive mechanism. A scraper is fixedly connected to the side wall of the baffle. The bottom surface of the scraper is in contact with the top surface of the overflow weir of the thickener body. The longitudinal section of the scraper is a right-angled trapezoid. The drive mechanism can drive the scraper to rotate on the top surface of the overflow weir of the thickener body via the baffle. A transmission mechanism is slidably provided through the side wall of the baffle. A push plate is fixedly connected to the output end of the transmission mechanism. The bottom surface of the push plate is in contact with the top surface of the scraper. The support rods can drive the push plate to slide on the top surface of the scraper via the transmission mechanism.

[0007] Preferably, the top surface of the scraper is a sloped surface, and the sloped surface is inclined downward along the direction close to the center of the thickener body.

[0008] Preferably, the longitudinal section of the baffle is Z-shaped, and the plane containing the top surface of the horizontal plate at the bottom end of the baffle is higher than the plane containing the top surface of the overflow weir of the thickener body.

[0009] Preferably, the bottom surface of the scraper has multiple overflow holes horizontally, and the cross-sectional shape of the overflow holes is semi-circular.

[0010] Preferably, the driving mechanism includes a dovetail block fixed to the top surface of the support rod, multiple dovetail blocks are slidably disposed in the dovetail groove, the dovetail groove is opened on the bottom surface of the gear ring, the gear ring is disposed directly above the multiple support rods and fits against their top surface, a gear is meshed on the side end of the gear ring, a motor is fixedly connected to the center of the top surface of the gear, the motor is fixedly connected to the inner wall of the thickener body, and the inner wall of the gear ring is fixedly connected to the baffle.

[0011] Preferably, the transmission mechanism includes a V-shaped slide rod that slides through the side wall of the baffle, one end of the V-shaped slide rod being fixedly connected to the side wall of the push plate, and a compression spring being sleeved on the V-shaped slide rod, the compression spring being disposed on the side of the baffle away from the push plate.

[0012] The advantages of this utility model are: a drive mechanism is fixedly connected to multiple support rods connected to the inner side wall of the thickener body. The drive mechanism can drive the scraper to rotate on the top surface of the overflow weir of the thickener body through the baffle. While cleaning the top surface of the overflow weir of the thickener body, the raw pulp adhering to the top surface of the scraper is pushed into the thickener body, reducing the waste and loss of raw pulp and eliminating the need for manual cleaning of the top surface of the overflow weir. Attached image description:

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural diagram of the present invention;

[0015] Figure 2 This is a top view of the structure described in this utility model;

[0016] Figure 3 This is a left view of the structure described in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of part 9 of the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of component 8 of this utility model;

[0019] Figure 6 This is a partial enlarged view of the structure described in this utility model;

[0020] Figure 7 The structure described in this utility model Figure 3 A magnified view of a portion of the image.

[0021] In the diagram: 1. Thickener body; 2. Support rod; 3. Dovetail block; 4. Dovetail groove; 5. Gear ring; 6. Motor; 7. Gear; 8. Baffle; 9. Scraper; 10. Overflow hole; 11. Push plate; 12. V-shaped slide bar; 13. Compression spring. Detailed implementation method:

[0022] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1-7As shown, this utility model provides the following technical solution: a thickener overflow weir cleaning mechanism, including a thickener body 1, a plurality of support rods 2 are fixedly connected to the inner side wall of the thickener body 1 in an annular manner, a drive mechanism is fixedly connected to the top surface of the plurality of support rods 2, a baffle 8 is fixedly connected to the output end of the drive mechanism, a scraper 9 is fixedly connected to the side wall of the baffle 8, the bottom surface of the scraper 9 is in contact with the top surface of the overflow weir of the thickener body 1, the longitudinal section of the scraper 9 is a right trapezoid, the drive mechanism can drive the scraper 9 to rotate on the top surface of the overflow weir of the thickener body 1 through the baffle 8, a transmission mechanism is slidably provided through the side wall of the baffle 8, a push plate 11 is fixedly connected to the output end of the transmission mechanism, the bottom surface of the push plate 11 is in contact with the top surface of the scraper 9, and the support rods 2 can drive the push plate 11 to slide on the top surface of the scraper 9 through the transmission mechanism.

[0027] Please combine Figure 1 As shown, during use, when the overflow weir of the thickener body 1 needs to be cleaned, the operator operates the drive mechanism to start the drive mechanism to work. The drive mechanism drives the baffle 8 to rotate, and the baffle 8 drives the scraper 9 to clean the top surface of the overflow weir. The raw slurry adhering to the top surface of the overflow weir is pushed to the top surface of the scraper 9. The baffle 8 drives the transmission mechanism to rotate and pass through multiple support rods 2 in sequence. The support rods 2 push the transmission mechanism to move. The transmission mechanism drives the pusher 11 to slide on the top surface of the scraper 9 and push the raw slurry on the top surface of the scraper 9 into the thickener body 1. When the transmission mechanism separates from the support rods 2, the transmission mechanism slides back to reset and drives the pusher 11 to slide back to reset, thereby realizing the cleaning of the raw slurry on the top surface of the scraper 9.

[0028] The top surface of the scraper 9 is a sloping surface, and the sloping surface is inclined downward along the direction close to the center of the thickener body 1, so that the raw pulp that slides to the top surface of the scraper 9 can slide into the thickener body 1 along the sloping surface of the scraper 9.

[0029] The longitudinal section of the baffle 8 is Z-shaped. The plane on the top surface of the horizontal plate at the bottom of the baffle 8 is higher than the plane on the top surface of the overflow weir of the thickener body 1, thereby blocking the raw slurry on the top surface of the overflow weir, preventing the raw slurry from being poured outward and flowing out with the overflow water, and reducing the waste of raw slurry resources.

[0030] The bottom surface of the scraper 9 has multiple overflow holes 10 horizontally. The cross-sectional shape of the overflow holes 10 is semi-circular. During the process of the scraper 9 sliding on the top surface of the overflow weir, the water in the thickener body 1 is still overflowing. The overflow water can flow out through the overflow holes 10 at the bottom of the scraper 9, reducing the obstruction of the overflow water flow during the sliding process of the scraper 9.

[0031] Please combine Figure 1 , Figure 6As shown in the embodiment of the drive mechanism, the drive mechanism includes a dovetail block 3 fixed to the top surface of the support rod 2, multiple dovetail blocks 3 are slidably arranged in the dovetail groove 4, the dovetail groove 4 is opened on the bottom surface of the gear ring 5, the gear ring 5 is arranged directly above the multiple support rods 2 and fits against their top surface, a gear 7 is meshed on the side end of the gear ring 5, a motor 6 is fixedly connected to the center of the top surface of the gear 7, the motor 6 is fixedly connected to the inner wall of the thickener body 1, and the inner wall of the gear ring 5 is fixedly connected to the baffle 8.

[0032] Please combine Figure 1 As shown, during use, when the top surface of the overflow weir needs to be cleaned, the controller is operated to start the motor 6. The output end of the motor 6 drives the gear 7 to rotate, the gear 7 drives the gear ring 5 to rotate, the gear ring 5 drives the dovetail groove 4 to rotate on the dovetail block 3, the gear ring 5 drives the baffle 8 to rotate, and the baffle 8 drives the scraper 9 to rotate on the top surface of the overflow weir of the thickener body 1 to clean the top surface of the overflow weir.

[0033] Please combine Figure 1 , Figure 2 , Figure 6 As shown in the embodiment of the transmission mechanism, the transmission mechanism includes a V-shaped slide rod 12 that is slidably disposed through the side wall of the baffle 8. One end of the V-shaped slide rod 12 is fixedly connected to the side wall of the push plate 11. A compression spring 13 is sleeved on the V-shaped slide rod 12. The compression spring 13 is disposed on the side of the baffle 8 away from the push plate 11.

[0034] Please combine Figure 1 As shown, during use, when the scraper 9 of the baffle 8 rotates to clean the top surface of the overflow weir, the raw slurry on the top surface of the overflow weir is shoveled onto the top surface of the scraper 9. The baffle 8 drives the V-shaped slide bar 12 to rotate and pass through multiple support rods 2 in sequence. The V-shaped slide bar 12 drives the push plate 11 to rotate. When the V-shaped slide bar 12 passes the support rod 2, the support rod 2 pushes the V-shaped slide bar 12 to slide and compress the compression spring 13, causing it to deform. The V-shaped slide bar 12 drives the push plate 11 to slide and push the raw slurry on the top surface of the scraper 9 into the thickener body 1, reducing the waste of raw slurry. When the V-shaped slide bar 12 separates from the support rod 2, the deformed compression spring 13 pushes the V-shaped slide bar 12 to move and reset. The V-shaped slide bar 12 drives the scraper 9 to slide on the top surface of the scraper 9 to reset.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A thickener overflow weir cleaning mechanism, comprising a thickener body, wherein a plurality of support rods are annularly fixedly connected to the inner side wall of the thickener body, characterized in that: A drive mechanism is fixedly connected to the top surface of multiple support rods. A baffle is fixedly connected to the output end of the drive mechanism. A scraper is fixedly connected to the side wall of the baffle. The bottom surface of the scraper is in contact with the top surface of the overflow weir of the thickener body. The longitudinal section of the scraper is a right trapezoid. The drive mechanism can drive the scraper to rotate on the top surface of the overflow weir of the thickener body through the baffle. A transmission mechanism is slidably provided through the side wall of the baffle. A push plate is fixedly connected to the output end of the transmission mechanism. The bottom surface of the push plate is in contact with the top surface of the scraper. The support rod can drive the push plate to slide on the top surface of the scraper through the transmission mechanism.

2. The thickener overflow weir cleaning mechanism according to claim 1, characterized in that: The top surface of the scraper is inclined, and the inclined direction is downward along the direction close to the center of the thickener body.

3. The thickener overflow weir cleaning mechanism according to claim 2, characterized in that: The longitudinal section of the baffle is Z-shaped, and the plane containing the top surface of the horizontal plate at the bottom end of the baffle is higher than the plane containing the top surface of the overflow weir of the thickener body.

4. The thickener overflow weir cleaning mechanism according to claim 3, characterized in that: The scraper has multiple overflow holes horizontally opened on its bottom surface, and the cross-sectional shape of the overflow holes is semi-circular.

5. The thickener overflow weir cleaning mechanism according to any one of claims 1-4, characterized in that: The drive mechanism includes a dovetail block fixed to the top surface of the support rod, multiple dovetail blocks are slidably arranged in the dovetail groove, the dovetail groove is opened on the bottom surface of the gear ring, the gear ring is arranged directly above the multiple support rods and fits against their top surface, a gear is meshed on the side end of the gear ring, a motor is fixedly connected to the center of the top surface of the gear, the motor is fixedly connected to the inner wall of the thickener body, and the inner wall of the gear ring is fixedly connected to the baffle.

6. The thickener overflow weir cleaning mechanism according to claim 3 or 4, characterized in that: The transmission mechanism includes a V-shaped slide rod that slides through the side wall of the baffle. One end of the V-shaped slide rod is fixedly connected to the side wall of the push plate. A compression spring is sleeved on the V-shaped slide rod, and the compression spring is located on the side of the baffle away from the push plate.

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