Gypsum dewatering centrifuge

Abstract

The utility model relates to a gypsum dehydration technical field, concretely relates to a gypsum dehydration centrifugal machine. Including the casing, the rotation seal is provided with the rotary drum in the casing, the rotary drum lower extreme penetrates the bottom plate of casing, the rotary drum lower extreme opening, the concentric fixed filter cartridge has in the drum upper end, the filter cartridge is connected with the casing through the drive unit, the casing lower extreme fixed communication has the outlet pipe, the filter cartridge outside is provided with vibration generating unit, the rotary drum is provided with two half circle baffle, two baffle constitute the circular plugging board, two baffle opposite end portion all are fixed with connecting rod, the connecting rod all are concentric fixed with gear, two gears mesh, one connecting rod is transmission connection with vibration generating unit. The utility model discloses the plugging board design of two half circle baffle constitutes, combines the sealing contact of rubber strip and rotary drum inner edge, and the sealing cooperation of baffle end portion arc surface, effectively prevent gypsum slurry from leaking from the rotary drum lower extreme in the dehydration process.

Description

Technical Field

[0001] This utility model relates to the field of gypsum dehydration technology, specifically to a gypsum dehydration centrifuge. Background Technology

[0002] The neutral gypsum solution produced from the acidic water and lime in the battery manufacturer's water treatment workshop, after being centrifuged, yields a gypsum product with a moisture content of approximately 20%. This product does not require further outsourcing and can be directly sent to the smelting workshop's batching process. It is then uniformly mixed with the production materials before being smelted in the furnace, replacing some of the calcium stone auxiliary material used in the side-blown furnace smelting process. This reduces the environmental risks associated with selling gypsum externally and also saves costs for the company. Gypsum dehydration requires a gypsum dewatering machine. Existing gypsum dewatering machines lack a cleaning function for the filter cartridge pores; residual gypsum in the pores easily clogs the pores after drying, affecting subsequent use.

[0003] In the prior art, patent document CN221028160U discloses a vertical rotary dewatering machine for desulfurized gypsum. When dewatering desulfurized gypsum, the gypsum is first poured in through the feed inlet and enters the dewatering drum. The motor is then started, driving the rotating shaft to rotate. The rotating shaft drives the dewatering drum and rotating block to rotate. The rotating block drives the second positioning rod to rotate, which in turn drives the transmission rod to rotate. The transmission rod, through the first positioning rod, drives the first slider to move in a circular motion along the slide rail. While the desulfurized gypsum is being dewatered in the dewatering drum, a scraper cleans the outer wall of the drum. To prevent desulfurized gypsum debris from clogging the outlet, the water separated from the desulfurized gypsum flows through the water passage into the collection box inside the recovery tank. After the desulfurized gypsum has been dehydrated, the top cover is opened, the roller is separated from the second fixed block, and the connecting block is rotated to remove the separated desulfurized gypsum. This solves the problem of existing vertical rotary desulfurized gypsum dewatering machines failing to remove water promptly after it has been dehydrated, thus disrupting subsequent operations. Furthermore, the centrifugal motion of the desulfurized gypsum causes debris to easily clog the outlet, reducing dewatering efficiency. However, the scraper cannot extend into the filter holes of the dewatering tank, and after use, the residual gypsum in the filter holes can easily dry and clog them. Utility Model Content

[0004] The main purpose of this utility model is to provide a gypsum dewatering centrifuge that facilitates material discharge, and allows the filter cartridge to vibrate during the discharge process, thereby facilitating the removal of gypsum from the filter holes on the filter cartridge.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A gypsum dewatering centrifuge includes a housing, within which a rotating drum is rotatably sealed. The lower end of the drum penetrates the bottom plate of the housing, and the lower end of the drum is open. A filter cartridge is concentrically fixed at the upper end of the drum, and the filter cartridge is connected to the housing via a drive unit. An outlet pipe is fixedly connected to the lower end of the housing. A vibration generating unit is installed outside the filter cartridge. Two semi-circular baffles are installed inside the rotating drum, forming a circular sealing plate. A rubber strip is fixed on the arc surface of the baffles, and the rubber strip contacts the inner edge of the rotating drum. The opposite ends of the two baffles are machined with arc surfaces, and the opposite arc surfaces of the two baffles are in sealing contact. A connecting rod is fixed inside the opposite ends of the two baffles, and the connecting rod is concentric with the arc surface of the baffle. A second motor is fixed outside the rotating drum, and one of the connecting rods is concentrically fixed to the output shaft of the second motor. Gears are concentrically fixed on each connecting rod, and the two gears mesh. One of the connecting rods is drively connected to the vibration generating unit.

[0006] Specifically, a rubber layer is fixed on the arc surface of one of the baffles, and the rubber layer is in sealed contact with the arc surface of the other baffle.

[0007] Specifically, a cover plate is detachably and fixedly connected to the upper end of the housing.

[0008] Specifically, the drive unit includes a bevel gear ring concentrically fixed to the upper end of the filter cartridge, a first motor fixed to the upper end of the housing, and a bevel gear concentrically fixed to the output shaft of the first motor, the bevel gear meshing with the bevel gear ring.

[0009] Specifically, the vibration generating unit includes a fixed plate fixed to the outside of the filter cartridge, a rotating shaft rotatably mounted on the fixed plate, multiple levers evenly distributed around the outer circumference of the rotating shaft, a rotating rod concentrically fixed on the rotating shaft, the rotating rod being drivenly connected to one of the connecting rods, and an impact component mounted on the outside of the filter cartridge. When the rotating shaft drives the multiple levers to rotate, the multiple levers can sequentially actuate the impact component, causing the impact component to intermittently impact the filter cartridge.

[0010] Specifically, pulleys are concentrically fixed on one of the connecting rods and the rotating rod, and the two pulleys are connected by a belt drive.

[0011] Specifically, the impact assembly includes a fixed rod fixed to the outside of the filter cartridge. The axial direction of the fixed rod is parallel to the radial direction of the filter cartridge. A sliding plate is slidably connected to the fixed rod. The sliding plate is fixedly connected to the filter cartridge by a spring. A striking rod is fixed to the side of the sliding plate facing the filter cartridge. The striking rod is located inside the spring. When the lever rotates, it can push the sliding plate outward towards the outside of the filter cartridge. The spring is stretched. After the lever separates from the sliding plate, under the elastic force of the spring, the sliding plate and the striking rod approach the filter cartridge. The striking rod impacts the filter cartridge, causing the filter cartridge to vibrate.

[0012] Specifically, the impact assembly includes an L-shaped striking plate. The intersection of the vertical and horizontal portions of the striking plate is elastically rotatably connected to an ear plate fixed to the outer edge of the filter cartridge. The upper end of the vertical portion of the striking plate contacts the outer edge of the filter cartridge, and the horizontal portion of the striking plate is located below the rotating shaft. When the lever rotates, it can squeeze the horizontal portion of the striking plate and cause the striking plate to rotate. After the lever separates from the horizontal portion of the striking plate, the upper end of the vertical portion of the striking plate strikes the filter cartridge, causing the filter cartridge to vibrate.

[0013] Specifically, the intersection of the vertical and horizontal portions of the striking plate is elastically rotatably connected to the ear plate fixed on the outer edge of the filter cartridge via a torsion spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The sealing plate design, consisting of two semi-circular baffles, combined with the sealing contact between the rubber strip and the inner edge of the rotating drum, as well as the sealing fit of the arc-shaped surfaces at the ends of the baffles, effectively prevents gypsum slurry from leaking from the bottom of the rotating drum during the dewatering process. This ensures the integrity and hygiene of material handling, reducing resource waste and environmental pollution.

[0015] 2. The drive unit drives the filter cartridge and rotating drum to rotate at high speed, using centrifugal force to force the water in the gypsum slurry to be quickly discharged through the filter cartridge pores and collected through the outlet pipe in the shell. This design optimizes the dewatering process, improves the water separation speed and overall processing capacity, and is suitable for materials with high moisture content such as gypsum slurry.

[0016] 3. The vibration generating unit intermittently drives the impact component via a lever, generating regular vibrations that periodically strike the surface of the filter cartridge. This effectively dislodges residual gypsum particles from the filter holes, preventing clogging, extending the filter cartridge's lifespan, reducing maintenance frequency, and ensuring continuous and stable equipment operation.

[0017] 4. The first motor controls the centrifugal rotation, and the second motor controls the opening and closing of the baffle and vibration linkage, achieving fully automated operation and simplifying manual intervention. The torsion spring impact assembly has a further optimized structure, improving fatigue resistance and response sensitivity, making the equipment more durable and easier to maintain, and suitable for industrial-scale applications.

[0018] 5. This centrifuge supports quick adjustment and cleaning, and is not only suitable for gypsum dewatering, but can also be extended to the processing of other similar slurries, enhancing the equipment's versatility and industrial applicability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the shell.

[0021] Figure 3 for Figure 2 A magnified view of region A in the middle.

[0022] Figure 4 This is a schematic diagram of the inner baffle of the rotating drum.

[0023] Figure 5 This is a diagram of a striking board.

[0024] The components in the attached diagram are named as follows: 1. Housing; 2. Cover plate; 3. First motor; 4. Bevel gear; 5. Rotary drum; 6. Bevel gear ring; 7. Second motor; 8. Connecting rod; 9. Gear; 10. Baffle; 11. Fixing plate; 12. Rotating shaft; 13. Rotating rod; 14. Fixing rod; 15. Sliding plate; 16. Striking rod; 17. Belt; 18. Outlet pipe; 19. Toggle lever; 20. Striking plate; 21. Filter cartridge; 22. Spring; 23. Rubber strip. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1: Refer to Figures 1-4 As shown, a gypsum dehydration centrifuge includes a housing 1, a rotating drum 5 is rotatably sealed inside the housing 1, the lower end of the rotating drum 5 penetrates the bottom plate of the housing 1, the lower end of the rotating drum 5 is open, the lower end of the housing 1 is fixedly connected to an outlet pipe 18, and the upper end of the housing 1 is detachably fixedly connected to a cover plate 2.

[0027] A filter cylinder 21 is concentrically fixed at the upper end of the cylinder, and the filter cylinder 21 is connected to the housing 1 through a drive unit.

[0028] The drive unit includes a bevel gear ring 6 concentrically fixed to the upper end of the filter cartridge 21, a first motor 3 fixed to the upper end of the housing 1, and a bevel gear 4 concentrically fixed to the output shaft of the first motor 3, which meshes with the bevel gear ring 6.

[0029] Two semi-circular baffles 10 are installed inside the rotating drum 5, forming a circular sealing plate. A rubber strip 23 is fixed to the arc surface of each baffle 10, and the rubber strip 23 contacts the inner edge of the rotating drum 5. The opposite ends of the two baffles 10 are machined with arc surfaces, and these arc surfaces form a sealing contact. Specifically, a rubber layer is fixed to the arc surface of one baffle 10, and this rubber layer forms a sealing contact with the arc surface of the other baffle 10.

[0030] A connecting rod 8 is fixed inside the opposite ends of the two baffles 10. The connecting rod 8 is concentric with the arc surface of the baffle 10. A second motor 7 is fixed on the outside of the rotating drum 5. One of the connecting rods 8 is concentrically fixed to the output shaft of the second motor 7. A gear 9 is concentrically fixed on each connecting rod 8. The two gears 9 mesh.

[0031] A vibration generating unit is provided on the outside of the filter cartridge 21. One of the connecting rods 8 is connected to the vibration generating unit for transmission.

[0032] The vibration generating unit includes a fixed plate 11 fixed to the outside of the filter cartridge 21. A rotating shaft 12 is rotatably mounted on the fixed plate 11. Multiple levers 19 are evenly distributed around the outer circumference of the rotating shaft 12. A rotating rod 13 is concentrically fixed on the rotating shaft 12. The rotating rod 13 is connected to one of the connecting rods 8. An impact component is provided on the outside of the filter cartridge 21. When the rotating shaft 12 drives the multiple levers 19 to rotate, the multiple levers 19 can sequentially actuate the impact component, causing the impact component to intermittently impact the filter cartridge 21.

[0033] One of the connecting rods 8 and the rotating rod 13 are both concentrically fixed with pulleys, and the two pulleys are connected by a belt 17.

[0034] The impact assembly includes a fixing rod 14 fixed to the outside of the filter cartridge 21. The axial direction of the fixing rod 14 is parallel to the radial direction of the filter cartridge 21. A sliding plate 15 is slidably connected to the fixing rod 14. The sliding plate 15 is fixedly connected to the filter cartridge 21 by a spring 22. A striking rod 16 is fixed to the side of the sliding plate 15 facing the filter cartridge 21. The striking rod 16 is located inside the spring 22.

[0035] When the lever 19 rotates, it can push the sliding plate 15 outward in the direction of the rotating cylinder 5. The spring 22 is stretched. After the lever 19 separates from the sliding plate 15, under the elastic force of the spring 22, the sliding plate 15 and the striking rod 16 approach the filter cylinder 21. The striking rod 16 strikes the filter cylinder 21, and the filter cylinder 21 vibrates.

[0036] The gypsum slurry is injected into the rotating drum 5 and the filter cylinder 21. The water in the gypsum slurry is discharged into the housing 1 through the filter holes of the filter cylinder 21. The water that enters the housing 1 is discharged through the outlet pipe 18.

[0037] At this time, the rubber strip 23 on the baffle 10 is in sealed contact with the inner edge of the rotating drum 5, and the opposite ends of the two baffles 10 are in sealed contact, which can prevent the gypsum slurry from leaking out from the lower end of the rotating drum 5.

[0038] Start the first motor 3. The first motor 3 drives the filter cylinder 21 and the rotating drum 5 to rotate through the bevel gear 4 and the bevel gear ring 6. Under the action of centrifugal force, the water in the gypsum slurry is discharged into the shell 1 through the filter holes of the filter cylinder 21.

[0039] After the gypsum slurry is centrifuged, the second motor 7 is started. The second motor 7 drives one of the connecting rods 8 and the baffle 10 to rotate. Since the two connecting rods 8 are connected by two gears 9, the two baffles 10 can rotate at the same time. After the baffles 10 rotate, the gypsum in the filter cartridge 21 is discharged through the lower end of the rotating drum 5.

[0040] During the rotation of the connecting rod 8, the rotating rod 13 and the rotating shaft 12 rotate under the transmission action of the belt 17 and the pulley. Multiple levers 19 rotate as well. During the rotation of the levers 19, they can push the sliding plate 15 outwards towards the rotating cylinder 5, stretching the spring 22. After the levers 19 separate from the sliding plate 15, under the elastic force of the spring 22, the sliding plate 15 and the striking rod 16 approach the filter cylinder 21. The striking rod 16 strikes the filter cylinder 21, causing it to vibrate. During the rotation of the multiple levers 19, the sliding plate 15 and the striking rod 16 move intermittently, and the filter cylinder 21 is intermittently struck by the striking rod 16. This facilitates the removal of plaster from the filter holes on the filter cylinder 21, preventing clogging of the filter holes.

[0041] Example 2: Based on Example 1, referring to... Figure 5 As shown, the impact assembly includes an impact plate 20, which is L-shaped. The intersection of the vertical and horizontal portions of the impact plate 20 is elastically rotatably connected to an ear plate fixed to the outer edge of the filter cartridge 21. The upper end of the vertical portion of the impact plate 20 contacts the outer edge of the filter cartridge 21, and the horizontal portion of the impact plate 20 is located below the rotating shaft 12.

[0042] The intersection of the vertical and horizontal parts of the striking plate 20 is elastically connected to the ear plate fixed on the outer edge of the filter cartridge 21 by a torsion spring.

[0043] When lever 19 rotates, it presses against the flat part of striking plate 20, causing striking plate 20 to rotate. The torsion spring stores energy. After lever 19 separates from the flat part of striking plate 20, the upper end of the vertical part of striking plate 20 strikes filter cartridge 21, causing filter cartridge 21 to vibrate. When multiple levers 19 rotate, striking plate 20 rotates intermittently, and the upper end of the vertical part of striking plate 20 intermittently strikes filter cartridge 21. This facilitates the removal of plaster from the filter holes of filter cartridge 21, preventing clogging of the filter holes.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 gypsum dehydration centrifuge, comprising a housing (1), characterized in that, A rotating cylinder (5) is provided inside the housing (1) for rotational sealing. The lower end of the rotating cylinder (5) penetrates the bottom plate of the housing (1). The lower end of the rotating cylinder (5) is open. A filter cylinder (21) is concentrically fixed at the upper end of the cylinder. The filter cylinder (21) is connected to the housing (1) through a drive unit. A vibration generating unit is provided on the outside of the filter cylinder (21). Two semi-circular baffles (10) are provided inside the rotating cylinder (5). The two baffles (10) form a circular sealing plate. A rubber strip (23) is fixed on the arc surface of the baffle (10). The rubber strip (23) contacts the inner edge of the rotating cylinder (5). The opposite ends of the baffle (10) are machined with arc surfaces, and the opposite arc surfaces of the two baffles (10) are in sealed contact. A connecting rod (8) is fixed inside the opposite ends of the two baffles (10). The connecting rod (8) is concentric with the arc surface of the baffle (10). A second motor (7) is fixed on the outside of the rotating drum (5). One of the connecting rods (8) is concentrically fixed to the output shaft of the second motor (7). A gear (9) is concentrically fixed on each connecting rod (8). The two gears (9) mesh. One of the connecting rods (8) is connected to the vibration generating unit for transmission.

2. The gypsum dehydration centrifuge according to claim 1, characterized in that, A rubber layer is fixed on the arc surface of one of the baffles (10), and the rubber layer is in sealed contact with the arc surface of the other baffle (10).

3. The gypsum dehydration centrifuge according to claim 1, characterized in that, The upper end of the housing (1) is detachably and fixedly connected to a cover plate (2).

4. The gypsum dehydration centrifuge according to claim 1, characterized in that, The drive unit includes a bevel gear ring (6) concentrically fixed to the upper end of the filter cartridge (21), a first motor (3) fixed to the upper end of the housing (1), and a bevel gear (4) concentrically fixed on the output shaft of the first motor (3), which meshes with the bevel gear ring (6).

5. The gypsum dehydration centrifuge according to claim 1, characterized in that, The vibration generating unit includes a fixed plate (11) fixed on the outside of the filter cylinder (21). A rotating shaft (12) is rotatably mounted on the fixed plate (11). Multiple levers (19) are evenly distributed around the outer edge of the rotating shaft (12). A rotating rod (13) is concentrically fixed on the rotating shaft (12). The rotating rod (13) is connected to one of the connecting rods (8) in a transmission connection. An impact component is provided on the outside of the filter cylinder (21). When the rotating shaft (12) drives the multiple levers (19) to rotate, the multiple levers (19) can sequentially move the impact component and cause the impact component to intermittently impact the filter cylinder (21).

6. The gypsum dehydration centrifuge according to claim 5, characterized in that, One of the connecting rods (8) and the rotating rod (13) are both concentrically fixed with pulleys, and the two pulleys are connected by a belt (17).

7. The gypsum dehydration centrifuge according to claim 5, characterized in that, The impact assembly includes a fixed rod (14) fixed to the outside of the filter cylinder (21). The axial direction of the fixed rod (14) is parallel to the radial direction of the filter cylinder (21). A sliding plate (15) is slidably connected to the fixed rod (14). The sliding plate (15) is fixedly connected to the filter cylinder (21) by a spring (22). A striking rod (16) is fixed to the side of the sliding plate (15) facing the filter cylinder (21). The striking rod (16) is located inside the spring (22). When the lever (19) rotates, it can push the sliding plate (15) to the outside of the rotating cylinder (5). The spring (22) is stretched. After the lever (19) separates from the sliding plate (15), under the elastic force of the spring (22), the sliding plate (15) and the striking rod (16) approach the filter cylinder (21). The striking rod (16) strikes the filter cylinder (21), and the filter cylinder (21) vibrates.

8. The gypsum dehydration centrifuge according to claim 5, characterized in that, The impact assembly includes a striking plate (20), which is L-shaped. The intersection of the vertical and horizontal parts of the striking plate (20) is elastically rotatably connected to the ear plate fixed on the outer edge of the filter cylinder (21). The upper end of the vertical part of the striking plate (20) contacts the outer edge of the filter cylinder (21). The horizontal part of the striking plate (20) is located below the rotating shaft (12). When the lever (19) rotates, it can squeeze the horizontal part of the striking plate (20) and make the striking plate (20) rotate. After the lever (19) separates from the horizontal part of the striking plate (20), the upper end of the vertical part of the striking plate (20) strikes the filter cylinder (21), and the filter cylinder (21) vibrates.

9. A gypsum dehydration centrifuge according to claim 8, characterized in that, The intersection of the vertical and horizontal portions of the striking plate (20) is elastically connected to the ear plate fixed on the outer edge of the filter cylinder (21) by a torsion spring.

10. A gypsum dehydration centrifuge according to claim 1, characterized in that, The lower end of the housing (1) is fixedly connected to an outlet pipe (18).

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