A solid-liquid separation filtering device for desulfurization catalyst regeneration recovery

Abstract

The utility model relates to the technical field of catalyst recovery, disclose a kind of solid-liquid separation filter devices for desulfurization catalyst regeneration and recovery, including filter tank, the upper portion of the filter tank is equipped with support plate, the inside central position of the support plate is connected with support rod and is penetrated rotation, the lower end of the support rod is fixed with horizontal plate, and the both ends of the horizontal plate are fixed with mesh box jointly;The utility model is filtered by telescopic cylinder and drives mesh box into filter tank, and utilizes motor drive carousel, rotating plate, slide bar, fixed rod and rack, drives gear and support rod, horizontal plate and mesh box reciprocating rotation;The reciprocating rotation of mesh box makes the desulfurization catalyst accumulated in it continue to turn over, effectively prevent the mesh hole blockage caused by the accumulation compaction of desulfurization catalyst in mesh box bottom, and also promote the impurities adhered to the surface of desulfurization catalyst particle to fall off in turning process and discharge with waste liquid, so as to improve the purity of desulfurization catalyst after separation.

Description

Technical Field

[0001] This utility model relates to the field of catalyst recovery technology, specifically a solid-liquid separation and filtration device for the regeneration and recovery of desulfurization catalysts. Background Technology

[0002] In wet desulfurization processes (such as limestone-gypsum method, sodium alkali method, organic amine method, etc.) or partially dry / semi-dry desulfurization processes, catalysts may become deactivated during long-term operation due to poisoning (such as sulfide and heavy metal deposition), loss of active components, structural deterioration, or carbon buildup. Directly discarding deactivated catalysts not only wastes resources and increases treatment and disposal costs, but also poses potential risks of secondary pollution (such as heavy metal leaching). Therefore, regenerating and recycling deactivated catalysts is a key technical route to reduce desulfurization costs and achieve a green circular economy.

[0003] Existing catalyst recovery devices often filter solid catalysts from waste liquids through filtration during operation. However, solids tend to accumulate on the filter screen surface during operation, causing clogging of the filter holes and affecting recovery efficiency.

[0004] A Chinese patent discloses a high-efficiency catalyst recovery device for filtration (authorization announcement number CN221752446U). This patented technology uses a motor to drive a sprocket and a lead screw to rotate, causing a scraper to move along the filter plate. During the catalyst recovery process, it can prevent solids from accumulating on the surface of the filter plate and prevent the filter holes from becoming clogged.

[0005] However, it has certain drawbacks: although the design can prevent solids from clogging the filter holes, it cannot solve the problem of impurities adhering to the surface of catalyst particles. The adhering impurities can easily cause the catalyst to agglomerate during the pushing process. Even if the scraper pushes it to the discharge port, it will still be difficult to discharge it completely and smoothly due to adhesion, requiring manual intervention to clean it, which affects the recovery efficiency and catalyst purity. Utility Model Content

[0006] The purpose of this invention is to provide a solid-liquid separation and filtration device for the regeneration and recovery of desulfurization catalysts, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A solid-liquid separation and filtration device for desulfurization catalyst regeneration and recovery includes a filter tank, a support plate installed on the top of the filter tank, and lifting mechanisms provided on the upper ends of the left and right side surfaces of the filter tank. A support rod is rotatably connected through the center of the support plate, and a horizontal plate is fixedly connected to the lower end of the support rod. A mesh box is fixedly sleeved at both ends of the horizontal plate.

[0009] A gear is fixedly sleeved on the outside of the support rod above the support plate. A slide bar is fixedly connected to the upper surface of the support plate in front of the support rod. A rack is slidably connected to the outside of the slide bar. A displacement mechanism is provided on the upper surface of the support plate to the right of the slide bar.

[0010] As a further embodiment of this utility model: the lifting mechanism includes a support block, and a telescopic cylinder is fixedly connected to the lower surface of the support block.

[0011] As a further embodiment of this utility model: the displacement mechanism includes a fixed plate, a motor is fixedly connected to the right end of the rear surface of the fixed plate, a turntable is fixedly connected to the output end of the motor, a rotating plate is rotatably connected to the outer edge of the front surface of the turntable, a slider is fixedly connected to the left end of the front surface of the fixed plate, a sliding rod is movably connected inside the slider, and a fixed rod is fixedly connected to the left end of the sliding rod.

[0012] As a further improvement of this utility model, the gear is meshed with the rack.

[0013] As a further embodiment of this utility model: the support block is fixed to the upper part of one side surface of the filter tank, and the telescopic end of the telescopic cylinder is fixed to one end of the lower surface of the support plate.

[0014] As a further embodiment of this utility model: the lower end of the fixing plate is fixedly connected to the upper surface of the support plate, and the fixing plate is located on the right side of the slide bar; the left end of the rotating plate is rotatably connected to the right end of the slide bar; and the lower end of the fixing rod is fixedly connected to the right end of the rack.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention uses a telescopic cylinder to drive a mesh box into a filter tank for filtration. A motor drives a turntable, rotating plate, sliding rod, fixed rod, and rack, which in turn drive gears, support rods, a horizontal plate, and the mesh box to rotate reciprocally. This reciprocating rotation of the mesh box continuously agitates the desulfurization catalyst accumulated inside, effectively preventing the catalyst from accumulating and compacting at the bottom of the box, thus ensuring efficient wastewater filtration. It also causes impurities adhering to the surface of the desulfurization catalyst particles to detach during the agitation process and be discharged with the wastewater, thereby improving the purity of the separated desulfurization catalyst. Furthermore, this dynamic filtration process requires no manual intervention to avoid clogging, ensuring the continuity and reliability of the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a solid-liquid separation and filtration device for the regeneration and recovery of desulfurization catalysts.

[0018] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0019] Figure 3 This is a schematic diagram of the displacement mechanism in a solid-liquid separation and filtration device for desulfurization catalyst regeneration and recovery.

[0020] In the diagram: 1. Filter tank; 2. Support plate; 3. Lifting mechanism; 4. Support block; 5. Telescopic cylinder; 6. Support rod; 7. Horizontal plate; 8. Mesh box; 9. Gear; 10. Sliding bar; 11. Rack; 12. Displacement mechanism; 13. Fixed plate; 14. Motor; 15. Turntable; 16. Rotating plate; 17. Sliding block; 18. Sliding rod; 19. Fixed rod. Detailed Implementation

[0021] Please see Figure 1 In this embodiment of the present invention, a solid-liquid separation and filtration device for regenerating and recovering desulfurization catalyst includes a filter tank 1, a support plate 2 installed on the top of the filter tank 1, and a lifting mechanism 3 provided on the upper part of the left and right side surfaces of the filter tank 1. The lifting mechanism 3 includes a support block 4, which is fixedly connected to the upper part of one side surface of the filter tank 1. A telescopic cylinder 5 is fixedly connected to the lower surface of the support block 4, and the telescopic end of the telescopic cylinder 5 is fixedly connected to one end of the lower surface of the support plate 2. A support rod 6 is rotatably connected through the center of the support plate 2, and a horizontal plate 7 is fixedly connected to the lower end of the support rod 6. A mesh box 8 is fixedly sleeved on both ends of the horizontal plate 7.

[0022] The horizontal plate 7 is connected to the wire mesh box 8 at the upper end of the inner surface of the wire mesh box 8.

[0023] The mesh box 8 is a cylindrical structure with an open top and a closed bottom. The mesh holes are distributed on its side walls and bottom, and its outer diameter is smaller than the inner diameter of the filter tank 1. It is used to filter the desulfurization catalyst after the regeneration reaction and filter out the waste liquid. The mesh holes of the mesh box 8 are smaller than the desulfurization catalyst and larger than the impurities.

[0024] A valve connected to the interior of the filter tank 1 is fixed to the lower surface of the filter tank 1. The valve is a pneumatic butterfly valve (or ball valve) that is kept open during the filtration process and the waste liquid is discharged in real time.

[0025] The telescopic cylinder 5 is preferably a pneumatic cylinder, which, when retracted, causes the mesh box 8 to descend into the interior of the filter canister 1, and when extended, causes the filter canister 1 to rise above the filter canister 1.

[0026] exist Figures 1 to 3In the middle section: A gear 9 is fixedly sleeved on the outside of the support rod 6 above the support plate 2. A slide bar 10 is fixedly connected to the upper surface of the support plate 2 in front of the support rod 6. A rack 11 is slidably connected to the outside of the slide bar 10, and the gear 9 is meshed with the rack 11. A displacement mechanism 12 is provided on the upper surface of the support plate 2 to the right of the slide bar 10. The displacement mechanism 12 includes a fixed plate 13. The lower end of the fixed plate 13 is fixed to the upper surface of the support plate 2, and the fixed plate 13 is located on the slide bar 10. On the right side, a motor 14 is fixedly connected to the right end of the rear surface of the fixed plate 13. A turntable 15 is fixedly connected to the output end of the motor 14. A rotating plate 16 is rotatably connected to the outer edge of the front surface of the turntable 15. A slider 17 is fixedly connected to the left end of the front surface of the fixed plate 13. A sliding rod 18 is movably connected through the inside of the slider 17. The left end of the rotating plate 16 is rotatably connected to the right end of the sliding rod 18. A fixed rod 19 is fixedly connected to the left end of the sliding rod 18. The lower end of the fixed rod 19 is fixedly connected to the right end of the rack 11.

[0027] Motor 14 is a variable frequency motor, and its speed is adjustable;

[0028] The rotation of turntable 15 can drive slide bar 18 to move back and forth, which in turn drives rack 11 to move back and forth, and then drives support rod 6 to rotate back and forth through gear 9. This causes the desulfurization catalyst in screen box 8 to turn over, preventing the desulfurization catalyst with waste liquid from accumulating and clogging when it is continuously poured in, thus affecting the discharge of waste liquid. The reciprocating rotation of screen box 8 can also cause collision and friction between catalyst particles and between particles and screen wall. Loose impurities are peeled off by mechanical force and discharged with waste liquid through the mesh. Densely bonded impurities are exposed to new surfaces due to particle tumbling, which is conducive to subsequent cleaning.

[0029] The working principle of this utility model is as follows: the telescopic cylinder 5 retracts, driving the support plate 2 and the entire mechanism fixed on it to descend, so that the screen box 8 enters the filter tank 1; the slurry containing desulfurization catalyst particles and waste liquid after the regeneration reaction is poured into the screen box 8, and the waste liquid is filtered out through the mesh of the screen box 8 and flows into the bottom of the filter tank 1, and is finally discharged through the valve at the bottom of the filter tank 1; at the same time, the motor 14 is started, and the motor 14 drives the turntable 15 to rotate. The turntable 15 pushes the slide rod 18 to slide back and forth in the slider 17 through the rotating plate 16. The slide rod 18 is fixed Rod 19 drives rack 11 to move back and forth on slide bar 10; rack 11 drives gear 9 to rotate back and forth, gear 9 drives support rod 6, horizontal plate 7 and screen box 8 to rotate back and forth together; the back and forth rotation of screen box 8 causes the desulfurization catalyst accumulated inside to turn over, which not only prevents the desulfurization catalyst from accumulating and clogging the mesh and affecting the filtration of waste liquid, but also promotes the removal of impurities adhering to the surface of catalyst particles; after filtration, telescopic cylinder 5 extends, driving support plate 2 and screen box 8 to rise and leave the filter tank 1, so as to take out the desulfurization catalyst solid filtered out in screen box 8.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be noted that, 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 based on the specific circumstances.

Claims

1. A solid-liquid separation filtration device for desulfurization catalyst regeneration and recovery, comprising a filter tank (1), a support plate (2) installed above the filter tank (1), and lifting mechanisms (3) provided on the upper ends of the left and right sides of the filter tank (1), a support rod (6) rotatably connected through the center of the support plate (2), a horizontal plate (7) fixedly connected to the lower end of the support rod (6), and a mesh box (8) fixedly sleeved at both ends of the horizontal plate (7); Its features are, A gear (9) is fixedly sleeved on the outside of the support rod (6) above the support plate (2). A slide bar (10) is fixedly connected to the upper surface of the support plate (2) in front of the support rod (6). A rack (11) is slidably connected to the outside of the slide bar (10). A displacement mechanism (12) is provided on the upper surface of the support plate (2) to the right of the slide bar (10).

2. The solid-liquid separation and filtration device for desulfurization catalyst regeneration and recovery according to claim 1, characterized in that, The lifting mechanism (3) includes a support block (4), and a telescopic cylinder (5) is fixedly connected to the lower surface of the support block (4).

3. The solid-liquid separation and filtration device for desulfurization catalyst regeneration and recovery according to claim 1, characterized in that, The displacement mechanism (12) includes a fixed plate (13), a motor (14) is fixedly connected to the right end of the rear surface of the fixed plate (13), a turntable (15) is fixedly connected to the output end of the motor (14), a rotating plate (16) is rotatably connected to the outer edge of the front surface of the turntable (15), a slider (17) is fixedly connected to the left end of the front surface of the fixed plate (13), a sliding rod (18) is movably connected inside the slider (17), and a fixed rod (19) is fixedly connected to the left end of the sliding rod (18).

4. The solid-liquid separation and filtration device for desulfurization catalyst regeneration and recovery according to claim 1, characterized in that, The gear (9) is meshed with the rack (11).

5. A solid-liquid separation and filtration device for desulfurization catalyst regeneration and recovery according to claim 2, characterized in that, The support block (4) is fixed to the upper part of one side surface of the filter tank (1), and the telescopic end of the telescopic cylinder (5) is fixed to one end of the lower surface of the support plate (2).

6. A solid-liquid separation and filtration device for desulfurization catalyst regeneration and recovery according to claim 3, characterized in that, The lower end of the fixed plate (13) is fixed to the upper surface of the support plate (2), and the fixed plate (13) is located on the right side of the slide bar (10). The left end of the rotating plate (16) is rotatably connected to the right end of the slide bar (18), and the lower end of the fixed rod (19) is fixed to the right end of the rack (11).

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