Screening device for ardealite powder

Abstract

The utility model discloses a screening device for ardealite powder, which comprises a working table, a screening barrel is arranged in the working table, uniformly distributed screen meshes are arranged on the periphery of the screening barrel, a limiting frame is fixedly connected to the outer surfaces of the two sides of the screening barrel above the working table, and an inverted T-shaped storage groove is arranged in the limiting frame. A movable rod matched with the interior in shape is slidably connected to the interior of the storage groove, a rotating rod is rotatably connected to the inner wall of the upper portion of the movable rod, and a cleaning rolling brush is fixedly connected to the middle of the rotating rod. According to the screening device for the ardealite powder, a cleaning rolling brush can clean screen meshes in the surface of the screening barrel, the ardealite powder is prevented from blocking the screen meshes, ardealite with the proper size can rapidly pass through the screen meshes, meanwhile, a cleaning rack saw is arranged under a cleaning plate, and the cleaning rack saw is convenient to clean. And the cleaning rolling brush can clean phosphogypsum powder on the surface of the cleaning rolling brush when rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphogypsum powder screening, in particular to a screening device for phosphogypsum powder. Background Art

[0002] Phosphogypsum is an industrial waste residue discharged by phosphoric acid plants, phosphate fertilizer plants and some synthetic detergent industries, etc. However, it is an important renewable resource. At present, through a series of processes such as calcination, it is usually used to replace cement bricks in building processing;

[0003] When calcining the phosphogypsum waste residue, since the phosphogypsum contains impurities such as phosphorus, fluorine and organic matter, these impurities affect the comprehensive utilization of phosphogypsum. Therefore, it is necessary to perform harmless pretreatment on the phosphogypsum by removing the organic matter in the phosphogypsum and solidifying the harmful impurities therein, so as to present chemical inertness during the use of the stone powder;

[0004] In order to allow the phosphogypsum to fully react with the reactant and reduce internal impurities, the phosphogypsum is usually ground and screened. During the screening, due to the different shapes of the phosphogypsum, some lumps of phosphogypsum will block the inside of the sieve holes, preventing other phosphogypsum from passing through the sieve holes and slowing down the screening speed of the phosphogypsum;

[0005] In view of the above situation, we propose a screening device for phosphogypsum powder. Content of the Utility Model

[0006] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a screening device for phosphogypsum powder.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A screening device for phosphogypsum powder, including a workbench. A screening barrel is arranged inside the workbench. The periphery of the screening barrel is provided with evenly arranged sieve holes. The outer surfaces on both sides of the screening barrel above the workbench are fixedly connected with limit frames. An object placing groove in an inverted "T" shape is arranged inside the limit frames. A movable rod matching the internal shape is slidably connected inside the object placing groove. A rotating rod is rotatably connected to the inner wall above the movable rod. A cleaning brush roller is fixedly connected to the middle position of the rotating rod.

[0009] The top of the movable rod is fixedly connected with a cleaning plate. A cleaning tooth saw is fixedly connected to the bottom of the cleaning plate in the region directly above the cleaning brush roller.

[0010] Above the workbench, fixed frames are respectively fixedly connected to the front and rear ends of the screening bucket. Between the fixed frames, a toothed plate is fixedly connected to the inner wall facing the cleaning brush roller. On the side of the toothed plate facing the screening bucket, tooth blocks are provided. The toothed plate penetrates through the cleaning plate and is slidably connected inside the cleaning plate. A gear is meshed directly below the side of the toothed plate provided with tooth blocks, and the inner wall of the gear is fixedly connected to the outer surface of the rotating rod.

[0011] Between the fixed frames, a lead screw is rotatably connected to the inner wall facing the cleaning brush roller through a bearing. The lead screw penetrates through the cleaning plate and is threadedly connected to the cleaning plate.

[0012] Preferably, support legs are fixedly connected to the bottom of the workbench. A front fixed plate is fixedly connected to the front side of the workbench. A rear fixed plate is fixedly connected to the position of the workbench opposite to the front fixed plate. A discharge port is fixedly connected to the outer surface of the front fixed plate below the workbench. A feed port is fixedly connected to the outer surface of the rear fixed plate above the workbench.

[0013] Preferably, a connecting rod is rotatably connected between the front fixed plate and the rear fixed plate through a bearing. Multiple support rods are fixedly connected to the outer surface of the connecting rod. The support rods are composed of multiple connecting rods and have a circular cross-section. The outer top of the support rods is fixedly connected to the inner wall of the screening bucket. The front and rear ends of the screening bucket are respectively rotatably connected to the inner walls of the front fixed plate and the rear fixed plate.

[0014] Preferably, a first drive motor is fixedly connected to the outer surface of the workbench through a bracket. The output end of the first drive motor is fixedly connected to one end of the connecting rod.

[0015] Preferably, the screening bucket is placed with the height of the feed port side higher than that of the discharge port side, and the upper end section of the support leg is in a slope shape to fit the inclination angle of the screening bucket.

[0016] Preferably, a second drive motor is fixedly connected to the outer surface of the side of the fixed frame close to the discharge port through a bracket. The output end of the second drive motor is fixedly connected to the side of the lead screw close to the discharge port.

[0017] The screening device for phosphogypsum powder proposed by the present utility model has the beneficial effects that: the user drives the cleaning plate to move through the second drive motor. When the cleaning plate moves, it will drive the gear to rotate, and then drive the cleaning brush roller to rotate, so that the cleaning brush roller can clean the sieve holes on the surface of the screening bucket, avoiding the blockage of the sieve holes by phosphogypsum powder, enabling the phosphogypsum of appropriate size to quickly pass through the sieve holes. At the same time, a cleaning tooth saw is provided directly below the cleaning plate, so that when the cleaning brush roller rotates, it can clean the phosphogypsum powder on its own surface, avoiding the waste caused by the adhesion of phosphogypsum powder to the surface of the cleaning brush roller. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the overall outer surface of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of the overall interior of the present utility model;

[0020] Figure 3 For the present utility model Figure 1 An enlarged view of part A.

[0021] In the figure: 1, workbench; 2, support leg; 3, front fixing plate; 4, rear fixing plate; 5, screening barrel; 6, connecting rod; 7, support rod; 8, discharge port; 9, feed port; 10, first driving motor; 11, limit frame; 12, movable rod; 13, fixing frame; 14, lead screw; 15, rotating rod; 16, cleaning brush; 17, gear; 18, cleaning plate; 19, cleaning sawtooth; 20, second driving motor; 21, toothed plate. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0024] As shown in References 1 - 3, a screening device for phosphogypsum powder includes a workbench 1. Inside the workbench 1, there is a screening barrel 5. The periphery of the screening barrel 5 is provided with evenly arranged sieve holes. The bottom of the workbench 1 is fixedly connected with support legs 2, and the bottoms of the support legs 2 are installed on the top of the collection bin for collecting phosphogypsum powder. The front side of the workbench 1 is fixedly connected with a front fixing plate 3, and the position of the workbench 1 opposite to the front fixing plate 3 is fixedly connected with a rear fixing plate 4. The outer surface of the front fixing plate 3 located below the workbench 1 is fixedly connected with a discharge port 8, and the outer surface of the rear fixing plate 4 located above the workbench 1 is fixedly connected with a feed port 9. A conveyor belt is arranged at the discharge port 8 to transport the phosphogypsum powder to a crushing machine for secondary crushing, and then it is transported to the feed port 9 for secondary screening. The screening barrel 5 is placed with the height on the side of the feed port 9 higher than that on the side of the discharge port 8. The upper end section of the support leg 2 is in a slope shape to fit the inclination angle of the screening barrel 5. A connecting rod 6 is rotatably connected between the front fixing plate 3 and the rear fixing plate 4 through bearings. Multiple groups of support rods 7 are fixedly connected to the outer surface of the connecting rod 6. The support rod 7 is composed of multiple groups of connecting rods and has a circular cross-section. The outer top of the support rod 7 is fixedly connected to the inner wall of the screening barrel 5. The front and rear ends of the screening barrel 5 are respectively rotatably connected to the inner walls of the front fixing plate 3 and the rear fixing plate 4. The outer surface of the workbench 1 is fixedly connected with a first driving motor 10 through a bracket. The output end of the first driving motor 10 is fixedly connected to one end of the connecting rod 6. The screening barrel 5 has a certain inclination, so that the phosphogypsum powder can move from the side of the discharge port 8 to the side of the feed port 9 inside the screening barrel 5 under the action of gravity.

[0025] On the outer surfaces on both sides of the screening bucket 5 above the workbench 1, there are limit frames 11 fixedly connected. Inside the limit frames 11, there is a placement groove in an inverted "T" shape. Inside the placement groove, there is a movable rod 12 slidably connected with a shape matching its interior. On the inner wall above the movable rod 12, there is a rotating rod 15 rotatably connected. In the middle position of the rotating rod 15, there is a cleaning brush 16 fixedly connected. At the top of the movable rod 12, there is a cleaning plate 18 fixedly connected. At the bottom of the cleaning plate 18 in the area directly above the cleaning brush 16, there is a cleaning tooth saw 19 fixedly connected. At the front and rear ends of the screening bucket 5 above the workbench 1, there are fixed frames 13 fixedly connected respectively. On the inner walls of the fixed frames 13 facing the cleaning brush 16, there is a toothed plate 21 fixedly connected. On the outer surface of one side of the fixed frame 13 close to the discharge port 8, there is a second driving motor 20 fixedly connected through a bracket. The output end of the second driving motor 20 is fixedly connected to one side of the lead screw 14 close to the discharge port 8. On the side of the toothed plate 21 facing the screening bucket 5, there are tooth blocks. The toothed plate 21 penetrates through the cleaning plate 18 and is slidably connected inside the cleaning plate 18. Directly below the side of the toothed plate 21 with tooth blocks, there is a gear 17 meshed. The inner wall of the gear 17 is fixedly connected to the outer surface of the rotating rod 15. Between the fixed frames 13, there is a lead screw 14 rotatably connected through a bearing on the inner wall facing the cleaning brush 16. The lead screw 14 penetrates through the cleaning plate 18 and is threadedly connected to the cleaning plate 18. The first driving motor 10 drives the screening bucket 5 to rotate, and the second driving motor 20 drives the cleaning brush 16 to move back and forth. With the combination of the two movements, the cleaning brush 16 can clean various places of the screening bucket 5.

[0026] In summary: During the application of the present utility model, when screening phosphogypsum powder, the user first puts the phosphogypsum into the feed port 9, and at the same time starts the first driving motor 10 and the second driving motor 20. The first driving motor 10 drives the connecting rod 6 to rotate, thereby driving the screening bucket 5 to rotate to achieve the purpose of screening. The second driving motor 20 drives the cleaning plate 18 to move. While the cleaning plate 18 is moving, it will slide on the surface of the toothed plate 21, thereby driving the gear 17 to rotate. The rotation of the gear 17 drives the cleaning brush 16 below the cleaning plate 18 to rotate. The rotation of the cleaning brush 16 can clean the phosphogypsum powder on the surface of the screening bucket 5. At the same time, there is a cleaning tooth saw 19 below the cleaning plate 18. While the cleaning brush 16 rotates to clean the outer surface of the screening bucket 5, it can also clean the surface of the cleaning brush 16 itself.

[0027] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. Screening device for phosphogypsum powder, comprising a workbench (1), wherein a screening barrel (5) is arranged inside the workbench (1), and evenly distributed sieve holes are arranged around the screening barrel (5), characterized in that, On the outer surfaces on both sides of the screening barrel (5) above the workbench (1), there are limit frames (11) fixedly connected. Inside the limit frames (11), there is a placement groove in an inverted "T" shape. Inside the placement groove, there is a movable rod (12) slidably connected with a shape matching its interior. On the inner wall above the movable rod (12), there is a rotating rod (15) rotatably connected. In the middle position of the rotating rod (15), there is a cleaning brush (16) fixedly connected. At the top of the movable rod (12), there is a cleaning plate (18) fixedly connected. At the bottom of the cleaning plate (18) in the area directly above the cleaning brush (16), there is a cleaning tooth saw (19) fixedly connected. On the front and rear ends of the screening barrel (5) above the workbench (1), there are fixed frames (13) fixedly connected respectively. On the inner walls of the fixed frames (13) facing the cleaning brush (16), there is a toothed plate (21) fixedly connected. On the side of the toothed plate (21) facing the screening barrel (5), there are tooth blocks. The toothed plate (21) penetrates through the cleaning plate (18) and is slidably connected inside the cleaning plate (18). Below the side of the toothed plate (21) with tooth blocks, there is a gear (17) meshed. The inner wall of the gear (17) is fixedly connected to the outer surface of the rotating rod (15). Between the fixed frames (13), on the inner walls facing the cleaning brush (16), there is a lead screw (14) rotatably connected through a bearing. The lead screw (14) penetrates through the cleaning plate (18) and is threadedly connected to the cleaning plate (18).

2. The screening device for phosphogypsum powder according to claim 1, characterized in that, At the bottom of the workbench (1), there are support legs (2) fixedly connected. On the front side of the workbench (1), there is a front fixed plate (3) fixedly connected. At the position of the workbench (1) opposite to the front fixed plate (3), there is a rear fixed plate (4) fixedly connected. On the outer surface of the front fixed plate (3) below the workbench (1), there is a discharge port (8) fixedly connected. On the outer surface of the rear fixed plate (4) above the workbench (1), there is a feed port (9) fixedly connected.

3. The screening device for phosphogypsum powder according to claim 2, wherein, Between the front fixed plate (3) and the rear fixed plate (4), there is a connecting rod (6) rotatably connected through a bearing. On the outer surface of the connecting rod (6), there are multiple groups of support rods (7) fixedly connected. The support rods (7) are composed of multiple groups of connecting rods and have a circular cross-section. The outer top of the support rods (7) is fixedly connected to the inner wall of the screening barrel (5). The front and rear ends of the screening barrel (5) are respectively rotatably connected to the inner walls of the front fixed plate (3) and the rear fixed plate (4).

4. The screening device for phosphogypsum powder according to claim 1, characterized in that, On the outer surface of the workbench (1), there is a first driving motor (10) fixedly connected through a bracket. The output end of the first driving motor (10) is fixedly connected to one end of the connecting rod (6).

5. The screening device for phosphogypsum powder according to claim 2, characterized in that, The screening barrel (5) is placed with the height on the side of the feed port (9) higher than that on the side of the discharge port (8). The upper end cut surface of the support leg (2) is in a slope shape to fit the inclination angle of the screening barrel (5).

6. The screening device for phosphogypsum powder according to claim 2, characterized in that, On the outer surface of the fixed frame (13) close to the discharge port (8), there is a second driving motor (20) fixedly connected through a bracket. The output end of the second driving motor (20) is fixedly connected to one side of the lead screw (14) close to the discharge port (8).

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