Filter seam self-cleaning structure of stacked spiral sludge dewatering machine

Abstract

The utility model relates to the field of stacked spiral sludge dewatering machines, and discloses a stacked spiral sludge dewatering machine filter seam self-cleaning structure which comprises a feeding box, a support assembly is fixedly connected to the left side of the bottom side of the feeding box, a movable ring and a static ring are arranged in the support assembly, a spiral shaft is rotationally connected to the interior of the feeding box, and the movable ring and the static ring are fixedly connected to the left side of the bottom side of the feeding box. The device comprises a support assembly, the top side of the support assembly is rotationally connected with a reciprocating screw rod, the upper side and the lower side of the support assembly are both slidably connected with sliding blocks, the sliding blocks on the top side are arranged on the outer wall of the reciprocating screw rod in a sleeving mode, a brush ring is connected between the two sliding blocks through a fixing assembly, and the two brush rings are connected through a buckle assembly. The reciprocating lead screw and the spiral shaft are connected through a driving assembly. According to the filter seam cleaning structure, the brush ring is used for cleaning the filter seam between the movable ring and the static ring under the condition that an additional driving source is not needed, the cleaning effect of the filter seam is further improved, the cleaning structure is convenient to disassemble, and a worker can conveniently replace the cleaning structure.

Description

Technical Field

[0001] This utility model relates to the field of screw press sludge dewatering machines, and in particular to the self-cleaning structure of the filter slots of screw press sludge dewatering machines. Background Technology

[0002] The screw press sludge dewatering machine is a device used for dewatering municipal and industrial sludge. Its core technology involves alternating fixed and moving rings to form filter slots. As the screw shaft propels the sludge forward, the filter slots achieve solid-liquid separation under pressure. Its self-cleaning structure is a key design feature: the fixed rings are fixed to the central shaft, while the moving rings can move axially. The rotation of the screw shaft drives the moving rings in a reciprocating motion, causing the filter slots to open and close periodically. The relative movement of the rings squeezes or shakes impurities out of the filter slots, preventing clogging.

[0003] However, the current self-cleaning structure of the filter gap has the following drawbacks: First, it relies on an additional drive source (such as a motor) to drive the brush ring to clean the filter gap, which increases energy consumption and cost; Second, the cleaning structure is inconvenient to disassemble, and it takes a long time to replace the brush ring and other parts, resulting in low maintenance efficiency and difficulty in timely handling of the problem of fine particles being retained, which affects the continuous and efficient operation of the equipment.

[0004] In response to this technical problem, this application proposes a self-cleaning structure for the filter slots of a screw press sludge dewatering machine. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a self-cleaning structure for the filter gaps of a screw press sludge dewatering machine. This structure aims to clean the filter gaps between the moving and stationary rings using a brush ring without requiring an additional drive source, thereby preventing fine particles from remaining in the filter gaps, further improving the cleaning effect of the filter gaps, and making the cleaning structure easy to disassemble and replace, thus improving the maintenance efficiency of the cleaning structure.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The screw press sludge dewatering machine has a self-cleaning filter slit structure, including a feed box. A support assembly is fixedly connected to the left side of the bottom of the feed box. The support assembly has moving and stationary rings inside. A screw shaft is rotatably connected inside the feed box. A reciprocating screw is rotatably connected to the top side of the support assembly. Slider blocks are slidably connected to both the upper and lower sides of the support assembly. The top slider is sleeved on the outer wall of the reciprocating screw. A brush ring is connected between the two sliders by a fixing component, which fixes the brush ring to the slider. The two brush rings are connected by a snap-fit ​​component. The reciprocating screw and the screw shaft are connected by a drive component, which drives the screw shaft to rotate the reciprocating screw.

[0008] Furthermore, the fixing assembly includes two fixing rods slidably connected inside the slider, the fixing rods being inserted into the inside of the brush ring, and the fixing rods having threaded connections inside.

[0009] Furthermore, one side of the slider is rotatably connected to two handles via a damping shaft, the end of the threaded rod is rotatably connected inside the slider, and the end of the threaded rod is fixedly connected inside the handle.

[0010] Furthermore, the buckle assembly includes two buckle plates connected to the outer wall of the top brush ring by a torsion spring, and two buckle rods are fixedly connected to one side of the buckle plate.

[0011] Furthermore, a snap-fit ​​groove is provided on the outer wall of the bottom brush ring, the snap-fit ​​rod is engaged inside the snap-fit ​​groove, and a lever is fixedly connected to the bottom side of the snap-fit ​​plate.

[0012] Furthermore, the drive assembly includes a round rod rotatably connected inside the feed box, the left end of the round rod being fixedly connected to the right end of the reciprocating lead screw, and pulleys being fixedly connected to both the left end of the round rod and the left end of the helical shaft, with the two pulleys connected to each other via the inside of a belt.

[0013] Furthermore, a motor is installed on the right side of the feed box, and the drive end of the motor is fixedly connected to the right end of the screw shaft.

[0014] Furthermore, a protective cover is provided on the top side of the bracket assembly, and a plurality of insert rods are fixedly connected to the bottom side of the protective cover, the insert rods being inserted into the top side of the bracket assembly.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the spiral shaft rotates under the action of the pulley connected by the belt, which drives the round rod to rotate, thereby causing the reciprocating screw to rotate, which in turn drives the slider to slide, and thus causes the brush ring to move back and forth. In this way, the brush ring cleans the filter gap between the moving and stationary rings without the need for an additional drive source, thereby preventing fine particles from being trapped in the filter gap and further improving the cleaning effect of the filter gap.

[0017] 2. In this utility model, the threaded rod is rotated by the handle, which in turn drives the fixed rod to insert into or detach from the brush ring, thereby fixing the brush ring onto the slider or detaching the brush ring from the slider. This makes the cleaning structure easy to disassemble and replace, improving the maintenance efficiency of the cleaning structure. Attached Figure Description

[0018] Figure 1 A perspective view of the self-cleaning structure of the filter slots in the screw press sludge dewatering machine proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the feed box and support assembly of the self-cleaning filter slot structure of the screw press sludge dewatering machine proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the spiral shaft structure of the self-cleaning filter slot structure of the screw-type sludge dewatering machine proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the card plate structure of the self-cleaning filter slot structure of the screw press sludge dewatering machine proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the internal structure of the slider in the self-cleaning structure of the filter slot of the screw-type sludge dewatering machine proposed in this utility model.

[0023] Legend:

[0024] 1. Feed box; 2. Motor; 3. Protective cover; 4. Bracket assembly; 5. Moving and stationary rings; 6. Brush ring; 7. Insert rod; 8. Spiral shaft; 9. Round rod; 10. Reciprocating lead screw; 11. Slider; 12. Buckle plate; 13. Buckle rod; 14. Dial plate; 15. Fixing rod; 16. Threaded rod; 17. Rotary handle; 18. Pulley. 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. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-3This utility model provides an embodiment of a self-cleaning filter gap structure for a screw press sludge dewatering machine, including a feed box 1. A support assembly 4 is fixedly connected to the left side of the bottom of the feed box 1. The support assembly 4 contains moving and stationary rings 5. The feed box 1, support assembly 4, and moving and stationary rings 5 ​​are installed in the screw press sludge dewatering machine. The moving and stationary rings 5 ​​are divided into moving rings and stationary rings, which are alternately stacked to form interlocking filter gaps. A spiral shaft 8 is rotatably connected inside the feed box 1. Spiral blades are provided on the spiral shaft 8. The spiral blades propel and squeeze the sludge, causing water in the sludge to be discharged from the filter gaps while solid particles are retained. Simultaneously, the blades drive the moving ring to perform periodic reciprocating motion along the axial direction, causing the filter gaps between adjacent blades to open and close periodically. Fine particles adhering to the filter gaps are squeezed or shaken off and discharged with the filtrate or sludge, preventing clogging. A reciprocating screw 10 is rotatably connected to the top side of the support assembly 4, and sliders 11 are slidably connected to both the upper and lower sides of the support assembly 4. The top slider 11 is fitted onto the outer wall of the reciprocating screw 10, and a brush ring 6 is connected between the two sliders 11. The brush ring 6 contains numerous brushes, and the radial distance between the brushes and the edge of the filter gap is at least 5–10 mm to avoid direct contact with the opening and closing area of ​​the filter gap. The brushes are made of polyurethane elastic fibers or flexible... The rubber strip combines wear resistance and deformation capability, allowing it to elastically deform and exit the filter gap when compressed. The brush surface is coated with Teflon or made of a smooth material to reduce the coefficient of friction with the moving and stationary rings 5, minimizing the possibility of it being caught. These measures prevent the brush from being caught in the gap between the moving and stationary rings 5. A round rod 9 is rotatably connected inside the feed box 1. The left end of the round rod 9 is fixedly connected to the right end of the reciprocating screw 10. Both the left end of the round rod 9 and the left end of the screw shaft 8 are fixedly connected to pulleys 18. The two pulleys 18 are connected by the inner side of a belt. The rotation of the screw shaft 8 via the two pulleys 18 connected by the belt drives the round rod 9. The rotation causes the reciprocating screw 10 to rotate, which in turn drives the slider 11 to slide, thereby causing the brush ring 6 to reciprocate. A motor 2 is installed on the right side of the feed box 1. The drive end of the motor 2 is fixedly connected to the right end of the screw shaft 8. The motor 2 drives the screw shaft 8 to rotate. A protective cover 3 is provided on the top side of the bracket assembly 4. Multiple insert rods 7 are fixedly connected to the bottom side of the protective cover 3. The insert rods 7 are inserted into the top side of the bracket assembly 4. By inserting the insert rods 7 into the bracket assembly 4, the protective cover 3 is installed on the bracket assembly 4, thereby protecting the reciprocating screw 10 and preventing damage to the reciprocating screw 10 that would affect the transmission.

[0027] Reference Figures 3-5The slider 11 has two slidingly connected fixing rods 15, which are inserted into the brush ring 6. A threaded rod 16 is threaded into the fixing rod 15. Two rotating handles 17 are rotatably connected to one side of the slider 11 via a damping shaft. The end of the threaded rod 16 is rotatably connected to the inside of the slider 11 and fixedly connected to the inside of the rotating handles 17. Rotating the threaded rod 16 via the rotating handles 17 causes it to drive the fixing rods 15 to insert into or disengage from the brush ring 6, thereby fixing the brush ring 6 to the slider 11 or disengaging it from the slider 11. Two snap-fit ​​plates 12 are connected to the outer wall of the side brush ring 6 by a torsion spring. Two snap-fit ​​rods 13 are fixedly connected to one side of the snap-fit ​​plate 12. A snap-fit ​​groove is opened on the outer wall of the bottom brush ring 6. The snap-fit ​​rods 13 are engaged in the snap-fit ​​groove. A lever plate 14 is fixedly connected to the bottom side of the snap-fit ​​plate 12. The snap-fit ​​plate 12 is pressed against the bottom brush ring 6 by the torsion spring, so that the snap-fit ​​rods 13 are engaged in the snap-fit ​​groove, thereby connecting the upper and lower brush rings 6 together. This allows the top brush ring 6 to move along with the bottom brush ring 6, and the snap-fit ​​plate 12 can be moved by the lever plate 14.

[0028] Working principle: First, place the bottom brush ring 6 inside the bracket assembly 4 and move it to the top of the bottom slider 11. Then, rotate the handle 17 to rotate the threaded rod 16, which in turn drives the fixing rod 15 to insert or disengage from the brush ring 6, thus fixing the bottom brush ring 6 onto the bottom slider 11. Then, install the top brush ring 6 onto the top slider 11 following the same procedure. During this process, the latching plate 12 needs to be rotated to a horizontal position using the lever 14. After the top brush ring 6 is installed onto the top slider 11, release the lever 14 so that the latching plate 12 is pressed against the outer wall of the bottom brush ring 6 by the torsion spring, causing the latching rod 13 to engage in the latching groove, thus connecting the upper and lower brush rings 6 together. This allows the top brush ring 6 to move along with the bottom brush ring 6. When it is necessary to disassemble the brush ring 6... In this case, simply reverse the above process; details will not be repeated here. Then, start motor 2 and pour sludge into feed box 1. Motor 2 drives screw shaft 8 to rotate, and screw blades push and squeeze the sludge, causing water in the sludge to be discharged from the filter gaps while solid particles are trapped. At the same time, the screw blades drive the moving ring to make periodic reciprocating motion along the axial direction, causing the filter gaps between adjacent stacks to open and close periodically. Fine particles attached to the filter gaps are squeezed or shaken off and discharged with the filtrate or sludge, avoiding blockage. Under the action of two belt pulleys 18 connected by belts, the rotation of screw shaft 8 drives the round rod 9 to rotate, which in turn drives the reciprocating screw 10 to rotate, thereby driving the slider 11 to slide, which in turn causes the brush ring 6 to move back and forth, cleaning the filter gaps between the moving and stationary rings 5, thus preventing fine particles from being trapped in the filter gaps and further improving the cleaning effect of the filter gaps.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 self-cleaning structure of filter gap of a screw decanter, characterized in that: The utility model provides a kind of feeding box, which comprises a feeding box (1), a support assembly (4) is fixedly connected to the left side of the bottom side of the feeding box (1), a dynamic static ring (5) is arranged in the support assembly (4), a spiral shaft (8) is rotatably connected in the feeding box (1), a reciprocating screw rod (10) is rotatably connected to the top side of the support assembly (4), a sliding block (11) is slidably connected to the upper and lower sides of the support assembly (4), the sliding block (11) is sleeved on the outer wall of the reciprocating screw rod (10) on the top side, a brush ring (6) is connected by a fixing assembly between the two sliding blocks (11), the brush ring (6) is fixed to the sliding block (11) by the fixing assembly, the two brush rings (6) are connected by a buckle assembly, the reciprocating screw rod (10) and the spiral shaft (8) are connected by a driving assembly, the spiral shaft (8) drives the reciprocating screw rod (10) to rotate by the driving assembly.

2. The filter band self-cleaning structure of a mixed screw sludge dewaterer according to claim 1, characterized in that: The fixing assembly comprises two fixed rods (15) slidably connected in the sliding block (11), the fixed rods (15) are inserted into the inside of the brush ring (6), and a threaded rod (16) is threadedly connected in the inside of the fixed rod (15).

3. The filter band self-cleaning structure of a mixed screw sludge dewaterer according to claim 2, characterized in that: One side of the sliding block (11) is rotatably connected to two handlebars (17) by a damping shaft, the threaded rod (16) is rotatably connected to the inside of the sliding block (11), and the end of the threaded rod (16) is fixedly connected to the inside of the handlebar (17).

4. The filter band self-cleaning structure of a mixed screw sludge dewatering machine according to claim 1, characterized in that: The buckle assembly comprises two buckle plates (12) connected to the outer wall of the brush ring (6) on the top side by a torsion spring, and the buckle plate (12) is fixedly connected to two buckle rods (13) on one side.

5. The filter band self-cleaning structure of a Mudge sludge dewaterer according to claim 4, characterized in that: A buckle groove is formed in the outer wall of the brush ring (6) on the bottom side, the buckle rod (13) is clamped in the inside of the buckle groove, and a push plate (14) is fixedly connected to the bottom side of the buckle plate (12).

6. The filter band self-cleaning structure of a mixed screw sludge dewaterer according to claim 1, characterized in that: The driving assembly comprises a round rod (9) rotatably connected to the inside of the feeding box (1), the left end of the round rod (9) is fixedly connected to the right end of the reciprocating screw rod (10), the left end of the round rod (9) and the left end of the spiral shaft (8) are both fixedly connected to a belt pulley (18), and the two belt pulleys (18) are connected by the inside of a belt.

7. The filter band self-cleaning structure of a mixed screw sludge dewatering machine according to claim 1, characterized in that: A motor (2) is installed on the right side of the feeding box (1), and the driving end of the motor (2) is fixedly connected to the right end of the spiral shaft (8).

8. The filter band self-cleaning structure of a mixed screw sludge dewatering machine according to claim 1, characterized in that: A protective cover (3) is arranged on the top side of the support assembly (4), a plurality of insertion rods (7) are fixedly connected to the bottom side of the protective cover (3), and the insertion rods (7) are inserted into the top side of the support assembly (4).

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