A screen basket for a horizontal centrifugal dewatering machine

Abstract

This utility model discloses a screen basket for a horizontal centrifugal dewatering machine, including a lower flange and an upper flange. Multiple ribs are fixedly connected between the lower and upper flanges. These ribs, along with the lower and upper flanges, form multiple mounting slots. A U-shaped steel sheet is fixedly connected to the inner walls of each mounting slot. A screen assembly is provided inside each mounting slot, and the screen assembly abuts against the U-shaped steel sheet. In this utility model, the mounting slot structure composed of ribs and U-shaped steel sheets between the lower and upper flanges, combined with a detachable screen assembly, makes screen maintenance more convenient. When a portion of the screen is damaged, the corresponding screen assembly can be replaced individually by loosening the auxiliary pressure strip using a bidirectional moving component, avoiding the drawback of traditional integrally welded screen baskets requiring complete replacement. This structure significantly reduces maintenance costs and material waste.

Description

Technical Field

[0001] This utility model relates to the field of screen basket technology, and in particular to a screen basket for a horizontal centrifugal dewatering machine. Background Technology

[0002] Horizontal centrifugal dewatering machines are widely used in solid-liquid separation operations in industries such as coal, mining, and chemicals. Their core component, the screen basket, must withstand the centrifugal force generated by high-speed rotation, material impact, and continuous water scouring during operation. Due to the harsh working environment, the screen mesh is prone to wear, deformation, and even breakage, making it a vulnerable part of the equipment that requires regular maintenance or replacement.

[0003] Currently, most centrifugal dewatering machine screen baskets on the market adopt an integral welded structure, with the screen and support frame fixed together by welding. Although this structure is simple to manufacture, it has obvious drawbacks: when the screen is partially damaged, the entire screen basket must be replaced because the damaged part cannot be replaced individually, which not only increases maintenance costs but also leads to material waste. Utility Model Content

[0004] This utility model is a horizontal centrifugal dewatering machine sieve basket proposed to overcome the shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a horizontal centrifugal dewatering machine screen basket, including a lower flange and an upper flange, wherein multiple ribs are fixedly connected between the lower flange and the upper flange, and multiple mounting slots are formed between the multiple ribs and the lower flange and the upper flange, and a U-shaped steel sheet is fixedly connected to the inner walls of the multiple mounting slots, and a screen assembly is provided on the inner side of the multiple mounting slots, and the screen assembly abuts against the U-shaped steel sheet;

[0006] Each of the multiple ribs has an assembly groove on one side of its outer surface, and each of the multiple assembly grooves has a trapezoidal groove at its inner top and inner bottom.

[0007] Each of the multiple ribs has an auxiliary pressure strip attached to one side of its outer surface. Each of the multiple auxiliary pressure strips is equipped with a bidirectional moving component. Each of the two movable ends of the multiple bidirectional moving components is fixedly connected to a trapezoidal block, and the trapezoidal block matches the trapezoidal groove.

[0008] Furthermore, each of the multiple screen components includes an arc-shaped frame, which is located in the mounting slot and abuts against the U-shaped steel sheet. Multiple reinforcing ribs are fixedly connected to the inner walls on both sides of the arc-shaped frame. A sheet-like screen is fixedly connected to one side of the outer surface of the arc-shaped frame and the multiple reinforcing ribs. This structural design gives the screen component better overall rigidity, effectively resisting material impact and centrifugal force generated by high-speed rotation, and extending the service life of the screen.

[0009] Furthermore, each of the auxiliary pressure strips includes a pressure rod, and the pressure rod is attached to the rib. The outer surface of the pressure rod is symmetrically fixedly connected to two pressure strip bodies on one side of the rib, and the pressure strip bodies abut against the arc-shaped frame. This symmetrically distributed pressure strip structure can apply a uniform clamping force to the screen assembly, ensuring that the screen remains stable when operating at high speed and preventing deformation or loosening caused by uneven force.

[0010] Furthermore, each of the bidirectional moving components includes a hidden groove, which is located at the top of the pressure rod. The bottom of the hidden groove is provided with an internal hexagonal screw. The hidden design not only protects the internal hexagonal screw from material erosion, but also makes the overall structure more aesthetically pleasing and neat.

[0011] Furthermore, a bidirectional screw is fixedly connected to the bottom of the internal hexagonal screw head, and the bidirectional screw passes through the hidden groove and extends to the inner side of the pressure rod. The bidirectional screw is rotatably connected to the pressure rod, and two slides are symmetrically threaded on the outer surface of the bidirectional screw. The slides are fixedly connected to the trapezoidal blocks. This bidirectional screw transmission mechanism realizes the synchronous movement of the two trapezoidal blocks, ensuring that the locking force is evenly distributed.

[0012] Furthermore, both slide blocks slide in close contact with the inner walls on both sides of the pressure rod. This tightly fitted sliding structure effectively limits the radial wobble of the slide blocks and ensures accurate alignment between the trapezoidal block and the trapezoidal groove.

[0013] The beneficial effects of this utility model are:

[0014] In use, this utility model provides a horizontal centrifugal dewatering machine screen basket. By incorporating a mounting slot structure composed of ribs and U-shaped steel sheets between the lower and upper flanges, along with a detachable screen assembly, screen maintenance becomes more convenient. When a section of the screen is damaged, the corresponding screen assembly can be replaced individually simply by loosening the auxiliary pressure strip using the bidirectional moving component, avoiding the drawback of traditional integrally welded screen baskets that require complete replacement. This structure significantly reduces maintenance costs and material waste. Simultaneously, the rigid support frame formed by the U-shaped steel sheets and ribs ensures overall structural strength and resolves potential stability issues associated with split-type structures. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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.

[0016] Figure 1 : A perspective view of this utility model;

[0017] Figure 2 The present utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 : A cross-sectional view of the compression bar and ribs of this utility model.

[0019] The attached figures are labeled as follows:

[0020] 1. Lower flange; 2. Arc-shaped frame; 3. Reinforcing rib; 4. Pressure bar; 5. Sheet screen; 6. Rib; 7. U-shaped steel sheet; 8. Upper flange; 10. Concealed groove; 11. Socket head cap screw; 12. Pressure bar body; 13. Trapezoidal groove; 14. Trapezoidal block; 16. Slide seat; 17. Assembly groove; 18. Double-acting screw. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 3 As shown, a screen basket for a horizontal centrifugal dewatering machine is disclosed, comprising a lower flange 1 and an upper flange 8. Multiple ribs 6 are fixedly connected between the lower flange 1 and the upper flange 8. These ribs 6, together with the lower flange 1 and the upper flange 8, form multiple mounting slots. A U-shaped steel sheet 7 is fixedly connected to the inner walls of all four sides of each mounting slot. Screen assemblies are provided inside each mounting slot, and these screen assemblies abut against the U-shaped steel sheet 7. Each screen assembly includes an arc-shaped frame 2, which is located within the mounting slot and abuts against the U-shaped steel sheet 7. Multiple reinforcing ribs 3 are fixedly connected to the inner walls of both sides of the arc-shaped frame 2. A sheet-like screen 5 is fixedly connected to one side of the outer surface of the arc-shaped frame 2 and between it and the multiple reinforcing ribs 3. The reinforcing ribs 3 are arranged at specific intervals, ensuring structural strength while avoiding excessive obstruction of material flow.

[0023] Each of the outer surfaces of the multiple ribs 6 has an assembly groove 17, and the inner top and inner bottom of the multiple assembly grooves 17 have trapezoidal grooves 13. The trapezoidal grooves 13 adopt a standardized size design to ensure perfect fit with the locking components (composed of bidirectional moving components and trapezoidal blocks 14).

[0024] Multiple ribs 6 have auxiliary pressure strips attached to one side of their outer surfaces. Each auxiliary pressure strip is equipped with a bidirectional moving assembly. Trapezoidal blocks 14 are fixedly connected to the two movable ends of each bidirectional moving assembly, and the trapezoidal blocks 14 match the trapezoidal grooves 13. Each auxiliary pressure strip includes a pressure rod 4, which is attached to the rib 6. Two pressure strip bodies 12 are symmetrically fixedly connected to the outer surface of the pressure rod 4 on one side of the rib 6, and the pressure strip bodies 12 abut against the arc-shaped frame 2. Each bidirectional moving assembly includes a hidden groove 10, which is located at the top of the pressure rod 4. The bottom of the 0 is provided with an internal hexagon head 11, and the bottom of the internal hexagon head 11 is fixedly connected to a bidirectional screw 18. The bidirectional screw 18 passes through the hidden groove 10 and extends to the inner side of the pressure rod 4. The bidirectional screw 18 is rotatably connected to the pressure rod 4. Two slides 16 are symmetrically threaded on the outer surface of the bidirectional screw 18, and the slides 16 are fixedly connected to the trapezoidal block 14. Both slides 16 slide against the inner walls on both sides of the pressure rod 4. The thread helix angle of the bidirectional screw 18 is less than the friction angle, so that the bidirectional screw 18 has a self-locking ability and can avoid displacement due to vibration or load.

[0025] Working principle: When installing the sheet screen 5, first place the arc-shaped frame 2 into the mounting slot. Then, rotate the internal hexagon head 11 with a tool to drive the double-ended screw 18 to rotate, causing the two sliding blocks 16 to move in opposite directions along the double-ended screw 18, pushing the trapezoidal block 14 into the trapezoidal groove 13 of the rib 6, forming a wedge-shaped lock. At the same time, the pressure strip body 12 of the auxiliary pressure strip evenly presses the arc-shaped frame 2 during the locking process of the trapezoidal block 14, ensuring that the screen assembly is firmly attached to the U-shaped steel sheet 7. This structure not only enhances the overall rigidity of the screen basket through the support frame composed of the rib 6, lower flange 1, and upper flange 8, but also allows for quick disassembly and replacement after the screen wears out, reducing maintenance difficulty.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A screen basket for a horizontal centrifugal dewatering machine, comprising a lower flange (1) and an upper flange (8), characterized in that: The lower flange (1) and the upper flange (8) are fixedly connected by a plurality of ribs (6), and the plurality of ribs (6) and the lower flange (1) and the upper flange (8) form a plurality of mounting slots. The inner walls of the four sides of the plurality of mounting slots are fixedly connected by a U-shaped steel sheet (7). The inner side of the plurality of mounting slots is provided with a screen assembly, and the screen assembly abuts against the U-shaped steel sheet (7). Each of the multiple ribs (6) has an assembly groove (17) on one side of its outer surface, and each of the multiple assembly grooves (17) has a trapezoidal groove (13) at its inner top and inner bottom. Each of the multiple ribs (6) has an auxiliary pressure strip attached to one side of its outer surface. Each of the multiple auxiliary pressure strips is equipped with a bidirectional moving component. Each of the two movable ends of the multiple bidirectional moving components is fixedly connected to a trapezoidal block (14), and the trapezoidal block (14) matches the trapezoidal groove (13).

2. The screen basket of a horizontal centrifugal dewatering machine according to claim 1, characterized in that: Each of the multiple screen components includes an arc-shaped frame (2), and the arc-shaped frame (2) is located in the mounting slot and abuts against the U-shaped steel sheet (7). Multiple reinforcing ribs (3) are fixedly connected to the inner walls on both sides of the arc-shaped frame (2), and a sheet-like screen (5) is fixedly connected between the outer surface of the arc-shaped frame (2) and the multiple reinforcing ribs (3).

3. The screen basket of a horizontal centrifugal dewatering machine according to claim 2, characterized in that: Each of the auxiliary pressure strips includes a pressure rod (4), and the pressure rod (4) is attached to the rib (6). The outer surface of the pressure rod (4) is symmetrically fixedly connected to two pressure strip bodies (12) on one side of the rib (6), and the pressure strip bodies (12) abut against the arc frame (2).

4. The screen basket of a horizontal centrifugal dewatering machine according to claim 3, characterized in that: Each of the bidirectional moving components includes a hidden groove (10), and the hidden groove (10) is opened on the top of the pressure rod (4), and the bottom of the hidden groove (10) is provided with an internal hexagonal screw head (11).

5. The screen basket of a horizontal centrifugal dewatering machine according to claim 4, characterized in that: The bottom of the internal hexagonal screw head (11) is fixedly connected to a bidirectional screw (18), and the bidirectional screw (18) is set through the hidden groove (10) and extends to the inner side of the pressure rod (4). The bidirectional screw (18) is rotatably connected to the pressure rod (4). The outer surface of the bidirectional screw (18) is symmetrically threaded with two slides (16), and the slides (16) are fixedly connected to the trapezoidal block (14).

6. The screen basket of a horizontal centrifugal dewatering machine according to claim 5, characterized in that: Both of the slide blocks (16) slide against the inner walls on both sides of the pressure rod (4).

Images