Filtering device of municipal sewage sludge filter press

Abstract

The utility model relates to the field of filter presses, and discloses a filter device of a municipal sewage sludge filter press, which comprises a filter plate, a filter plate feed port, filter plate drain holes, filter plate water-permeable ports, a filter plate handle and rollers, the filter plate feed port is arranged at the central point of the filter plate, four filter plate drain holes and four filter plate water-permeable ports are arranged on the outer surface of the filter plate, and the rollers are arranged on the filter plate feed port. Two filter plate handles are arranged at the two ends of the filter plate, two rollers are arranged at the bottoms of the two filter plate handles, and a scraper device for automatically cleaning silt on the surface of the filter plate is arranged at the top of the filter plate; according to the utility model, the structural design is compact and reasonable, and the problem that the rollers on the filter plate handles are easy to abrade in the long-time rolling use process is solved, so that the efficiency of the filter device is improved.

Description

Technical Field

[0001] The utility model relates to the field of filter presses, in particular to a filtering device for a municipal sewage sludge filter press. Background Technique

[0002] As an important separation device, the working principle of a filter press is mainly based on a diaphragm pump driven by hydraulic pressure. During operation, the pulp is injected into the filter chambers formed by adjacent filter plates. Subsequently, by applying pressure, most of the water flows out through the filter cloth from the grooves on the filter plates. Then, high-pressure air uniformly passes through the cross-section of the entire filter cake, taking away the residual moisture in the filter cake. Finally, the main hydraulic cylinder starts to work, and the connecting rod drives the moving plate to squeeze the filter chamber to discharge the remaining water. The filter press plays an important role in many fields. In projects such as construction sites, building construction, pile driving, and shield tunneling, the filter press is used for sludge dewatering. In sand washing applications, such as machine-made sand, washed sand, and stone powder washed sand, the filter press can effectively treat the sand washing sewage. In municipal sludge dewatering, urban sewer and other sewage treatments, the filter press also plays an indispensable role.

[0003] During the long-term rolling use of the rollers on the handles of the filter plates of the existing plate-frame filter presses for treating sewage sludge, problems such as wear are likely to occur, which affects the smoothness and stability of their movement and requires frequent replacement. For this reason, we have proposed a filtering device for a municipal sewage sludge filter press. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a filtering device for a municipal sewage sludge filter press, which solves the above problems.

[0006] (II) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solutions: A filtering device for a municipal sewage sludge filter press includes filter plates, filter plate feeding ports, filter plate drainage holes, filter plate water permeable ports, filter plate handles, and rollers. A filter plate feeding port is provided at the center point of the filter plate, and four filter plate drainage holes and four filter plate water permeable ports are provided on the outer surface of the filter plate. Two filter plate handles are provided at both ends of the filter plate, and two rollers are provided at the bottoms of the two filter plate handles. It further includes:

[0008] A scraper device for automatically cleaning sediment on the surface of the filter plate is provided on the top of the filter plate;

[0009] Two clamping devices for facilitating the replacement of the rollers are provided at the bottoms of the two filter plate handles.

[0010] Preferably, the scraper device includes an electric telescopic rod and a scraper. The top of the filter plate is fixedly connected with the electric telescopic rod, and the movable end of the electric telescopic rod is fixedly connected with the scraper.

[0011] Preferably, the scraper is composed of a movable plate and a triangular scraper. The bottom end of the movable plate is fixedly connected to the top end of the triangular scraper, the top end of the movable plate is fixedly connected to the movable end of the electric telescopic rod, and the right-angled end of the triangular scraper is closely attached to the surface of the filter plate.

[0012] Preferably, both of the clamping devices include a fixed block, a clamping rod, a movable groove, a bolt and a nut. The bottom of the filter plate handle is fixedly connected with the fixed block. One side of the fixed block is provided with the movable groove. The bolt is movably connected inside the movable groove. One clamping rod is movably connected to both ends of the fixed block corresponding to the outer surface of the bolt respectively, and one end of the bolt is threadedly connected with the nut.

[0013] Preferably, one end of both of the clamping rods is fixedly connected with two clamping blocks, the other end of both of the clamping rods is fixedly connected with two limiting round rods, one end of both of the limiting round rods is movably connected inside the movable groove, a spring is fixedly connected between both of the limiting round rods, and one end of the bolt penetrates through the inside of the spring.

[0014] Preferably, the nut is hexagonal, three handles are fixedly connected to the outer surface of the nut, and one ends of the three handles are arranged in a ring around the nut.

[0015] Preferably, both of the clamping blocks are cylindrical, a clamping groove is provided on one side of both of the clamping blocks, and both ends of the roller are movably connected inside the two clamping grooves.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present utility model provides a filtering device for a municipal sewage sludge filter press, which has the following

[0018] beneficial effects:

[0019] 1. For the filtering device of the municipal sewage sludge filter press, by twisting it through the handle on the nut, the distance between the two clamping rods is reduced by the nut through the bolt, so that the two clamping rods drive the two limiting round rods to squeeze the spring, and at the same time drive the two clamping blocks to clamp both ends of the roller, so that the roller is installed on the two clamping blocks. On the contrary, twisting the nut to move it towards one end of the bolt, so that one end of the clamping rod moves towards both ends of the movable groove through the nut driven by the two limiting round rods under the elastic force of the spring, thereby driving one end of the two clamping rods to move towards both ends of the bolt, so that the two clamping rods drive the clamping grooves on the two clamping blocks to disengage from both ends of the roller, so that the roller can be taken down, thus completing the replacement of the roller.

[0020] 2. The filtering device of the municipal sewage sludge filter press drives the scraper to move downward through the movable end of the electric telescopic rod, so that the scraper scrapes off the sediment blocks remaining on the surface of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present utility model;

[0022] Figure 2 It is a schematic diagram of the scraper device of the present utility model;

[0023] Figure 3 It is a schematic diagram of the clamping device of the present utility model;

[0024] Figure 4 It is a schematic structural diagram of the clamping device of the present utility model.

[0025] In the figure: 1. Filter plate; 2. Filter plate feed port; 3. Filter plate drainage hole; 4. Filter plate water permeable port; 5. Filter plate handle; 6. Electric telescopic rod; 7. Scraper; 8. Fixed block; 9. Clamping rod; 10. Roller; 11. Movable groove; 12. Bolt; 13. Nut; 14. Clamping block; 15. Limit round rod; 16. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-4 , a filtering device of a municipal sewage sludge filter press, including a filter plate 1, a filter plate feed port 2, a filter plate drainage hole 3, a filter plate water permeable port 4, a filter plate handle 5 and a roller 10. A filter plate feed port 2 is provided at the center point of the filter plate 1, and four filter plate drainage holes 3 and four filter plate water permeable ports 4 are provided on the outer surface of the filter plate 1. Two filter plate handles 5 are provided at both ends of the filter plate 1, and two rollers 10 are provided at the bottoms of the two filter plate handles 5. It further includes:

[0028] A scraper device for automatically cleaning the surface of the filter plate 1 is provided on the top of the filter plate 1;

[0029] Two clamping devices for facilitating the replacement of the rollers 10 are provided at the bottoms of the two filter plate handles 5.

[0030] Further, the scraper device includes an electric telescopic rod 6 and a scraper 7. The top of the filter plate 1 is fixedly connected to the electric telescopic rod 6, and the movable end of the electric telescopic rod 6 is fixedly connected to the scraper 7.

[0031] Further, the scraper 7 is composed of a movable plate and a triangular scraper. The bottom end of the movable plate is fixedly connected to the top end of the triangular scraper. The top end of the movable plate is fixedly connected to the movable end of the electric telescopic rod 6, and the right-angle end of the triangular scraper is closely attached to the surface of the filter plate 1.

[0032] Further, both of the clamping devices include a fixed block 8, a clamping rod 9, a movable groove 11, a bolt 12, and a nut 13. The bottom of the filter plate handle 5 is fixedly connected to the fixed block 8. A movable groove 11 is formed on one side of the fixed block 8. The bolt 12 is movably connected inside the movable groove 11. One clamping rod 9 is movably connected to each end of the fixed block 8 corresponding to the outer surface of the bolt 12, and a nut 13 is threadedly connected to one end of the bolt 12.

[0033] Further, two clamping blocks 14 are fixedly connected to one end of the two clamping rods 9. Two limiting round rods 15 are fixedly connected to the other end of the two clamping rods 9. One end of the two limiting round rods 15 is movably connected inside the movable groove 11. A spring 16 is fixedly connected between the two limiting round rods 15, and one end of the bolt 12 passes through the inside of the spring 16.

[0034] Further, the nut 13 is hexagonal, and three handles are fixedly connected to the outer surface of the nut 13. One ends of the three handles are arranged in a ring around the nut 13.

[0035] Further, the two clamping blocks 14 are cylindrical, and a clamping groove is formed on one side of each of the two clamping blocks 14. Both ends of the roller 10 are movably connected inside the two clamping grooves.

[0036] Working principle: When the filter plate 1 of the filtering device has been used for a long time and the roller 10 rolls smoothly and needs to be replaced, first place the roller 10 to be replaced between the two clamping blocks 14, and then twist it through the handle on the nut 13, so that the nut 13 reduces the distance between the two clamping rods 9 through the bolt 12, so that the two clamping rods 9 drive the two limiting round rods 15 to squeeze the spring 16, and at the same time drive the two clamping blocks 14 to clamp the two ends of the roller 10, so that the roller 10 is installed on the two clamping blocks 14. On the contrary, twist the nut 13 to move it towards one end of the bolt 12, so that one end of the clamping rod 9 moves towards the two ends of the movable groove 11 under the elastic force of the spring 16 through the nut 13, thereby driving one end of the two clamping rods 9 to move towards the two ends of the bolt 12, so that the two clamping rods 9 drive the clamping grooves on the two clamping blocks 14 to disengage from the two ends of the roller 10, so that the roller 10 can be taken down, thus completing the replacement of the roller 10. Then, when the filtering device completes the task of filtering sediment, start the electric telescopic rod 6, so that the movable end of the electric telescopic rod 6 drives the scraper 7 to move downward, so that the scraper 7 scrapes off the sediment blocks remaining on the surface of the filter plate 1.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for a municipal sewage sludge filter press, comprising a filter plate (1), a filter plate feed port (2), a filter plate drainage hole (3), a filter plate water permeable port (4), a filter plate handle (5) and a roller (10), wherein the filter plate feed port (2) is arranged at the center point of the filter plate (1), and the outer surface of the filter plate (1) is arranged with four filter plate drainage holes (3) and four filter plate water permeable ports (4), and two filter plate handles (5) are arranged at both ends of the filter plate (1), and two rollers (10) are arranged at the bottom of the two filter plate handles (5), characterized in that: Also includes: A scraper device is provided on the top of the filter plate (1) to automatically clean the mud and sand on its surface; Two clamping devices for facilitating replacement of the rollers (10) are arranged at the bottom of the two filter plate handles (5).

2. The filtering device of a municipal sewage sludge filter press according to claim 1, characterized in that: The scraper device comprises an electric telescopic rod (6) and a scraper (7); the top of the filter plate (1) is fixedly connected to the electric telescopic rod (6); and the movable end of the electric telescopic rod (6) is fixedly connected to the scraper (7).

3. The filtering device of a municipal sewage sludge filter press according to claim 2, characterized in that: The scraper (7) is composed of a movable plate and a triangular scraper, and the bottom end of the movable plate is fixedly connected to the top end of the triangular scraper, and the top end of the movable plate is fixedly connected to the movable end of the electric telescopic rod (6), and the right-angle end of the triangular scraper is closely attached to the surface of the filter plate (1).

4. The filtering device of a municipal sewage sludge filter press according to claim 1, characterized in that: The two clamping devices each comprise a fixed block (8), a clamping rod (9), a movable groove (11), a bolt (12) and a nut (13); the bottom of the filter plate handle (5) is fixedly connected to the fixed block (8); a movable groove (11) is provided on one side of the fixed block (8); the inside of the movable groove (11) is movably connected to the bolt (12); the outer surface of the bolt (12) is movably connected to a clamping rod (9) at each end corresponding to the fixed block (8); and one end of the bolt (12) is threadedly connected to the nut (13).

5. The filtering device of a municipal sewage sludge filter press according to claim 4, characterized in that: One end of the two clamping rods (9) is fixedly connected to two clamping blocks (14), and the other end of the two clamping rods (9) is fixedly connected to two limiting round rods (15), and one end of the two limiting round rods (15) is movably connected inside the movable groove (11), and a spring (16) is fixedly connected between the two limiting round rods (15), and one end of the bolt (12) passes through the inside of the spring (16).

6. The filtering device of a municipal sewage sludge filter press according to claim 4, characterized in that: The nut (13) is hexagonal, and three handles are fixedly connected to the outer surface of the nut (13), and one end of the three handles are arranged in a ring shape around the nut (13).

7. The filtering device of a municipal sewage sludge filter press according to claim 5, characterized in that: The two clamping blocks (14) are cylindrical, and one side of the two clamping blocks (14) is provided with a clamping groove, and the two ends of the roller (10) are movably connected inside the two clamping grooves.

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