Sludge plate-and-frame filter press for sewage treatment

Abstract

The utility model relates to the technical field of plate-and-frame filter presses, and provides a sludge plate-and-frame filter press for sewage treatment, which comprises a machine body, a guide plate is fixedly connected to one side of the outside of the machine body, baffles are fixedly connected to two sides of the top of the guide plate, a motor is fixedly connected to one side of the outside of one baffle, and the motor is fixedly connected to the other side of the outside of the other baffle. The motor is fixedly connected with a reciprocating screw rod through an output shaft, a water retaining strip is fixedly connected into the guide plate, a bearing seat is arranged outside the reciprocating screw rod, the bearing seat is connected with the reciprocating screw rod through a ball nut pair, the bottom of the bearing seat is fixedly connected with a connecting plate, and the top of the connecting plate is fixedly connected with a scraping shell. The reciprocating lead screw extends into the two baffles and is connected with the two baffles through bearings, and the scraping shell is arranged to be in a U shape. According to the technical scheme, the problem that backwashing water in the filter press is inconvenient to block and impurities are inconvenient to strip in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plate-frame filter presses, and in particular to a sludge plate-frame filter press for sewage treatment. Background Art

[0002] Plate and frame filter press dehydration is a method of using plate and frame filter press to dehydrate sludge. The plate and frame filter press is composed of plates and frames arranged alternately. There are grooves and holes on the filter plates and filter frames as filtrate channels. The filter cloth is sandwiched between the plates and frames, and the plates and frames are connected together with end plates. The sludge raw liquid is pressed into the filter frame from the feed port with the help of a pump or compressed air. The filtrate is discharged through the filter cloth along the holes and channels, and the filter residue is accumulated in the filter frame.

[0003] The patent specification with the announcement number CN214270649U discloses a plate-frame filter press for sludge. The utility model achieves the effect of effective use of the rectangular frame by arranging a snap-fit ​​block, a sewage discharge hole unit, a drainage pipeline unit and a sludge feed pipe unit on the rectangular frame. The utility model has the advantages of high stability of the rectangular frame installation structure, simple and convenient installation and removal operations, high airtightness of sludge entry and sewage discharge, and low leakage, as well as high structural strength of the overall filter press and large maximum allowable pressure value.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: during the backwashing process of the filter cloth, the backwashing water of the above device will splash and overflow and eventually flow into the mud bucket below, which will reduce the moisture content of the squeezed mud cake. Therefore, the filter cloth can only be backwashed after the mud cake is cleared, which is not conducive to improving the work progress and will also cause the problem of impurity precipitation. Therefore, further improvement is needed. Utility Model Content

[0005] The utility model provides a sludge plate-frame filter press for sewage treatment, which solves the problem in the related art that it is inconvenient to block the backwash water inside the filter press and to strip off the impurities.

[0006] The technical solution of the utility model is as follows:

[0007] A sludge plate and frame filter press for sewage treatment comprises a body, a guide plate is fixedly connected to one side of the body's exterior, baffles are fixedly connected to both sides of the guide plate's top, a motor is fixedly connected to one side of the baffle plate's exterior, the motor is fixedly connected to a reciprocating screw via an output shaft, a water retaining bar is fixedly connected to the inside of the guide plate, a bearing seat is provided outside the reciprocating screw, the bearing seat and the reciprocating screw are connected via a ball nut pair, a connecting plate is fixedly connected to the bottom of the bearing seat, and a scraper shell is fixedly connected to the top of the connecting plate.

[0008] Preferably, the reciprocating screw extends to the inside of the two baffles and is connected to the two baffles via a bearing, and the scraper shell is configured to be U-shaped.

[0009] Preferably, the interior of the scraper shell is adapted to and in contact with the exterior of the water retaining strip, and a scraper plate 1 and a scraper plate 2 are respectively fixedly connected to both sides of the exterior of the scraper shell.

[0010] Preferably, one side of the bottom of the scraper plate 2 is in contact with one side of the top of the guide plate, and one side of the bottom of the scraper plate 1 is in contact with the other side of the top of the guide plate.

[0011] Preferably, one side of the two baffles is fixedly connected with a clamping plate, and a blocking plate is movably connected between the two clamping plates via a rotating shaft.

[0012] Preferably, one side of the exterior of the two baffles is fixedly connected to a shell, and a rotating rod is provided inside the two shells.

[0013] Preferably, the shape of the rotating rod is set to be a zigzag shape, and the rotating rod is movably connected to the two shells through a damping bearing.

[0014] Preferably, both sides of the exterior of the rotating rod are fixedly connected with counterweight bars, and the two counterweight bars are respectively in contact with both sides of the exterior of the blocking plate.

[0015] Preferably, a sliding groove is provided inside the two baffles, and a sliding rod is slidably connected inside the two sliding grooves.

[0016] Preferably, one end of the two sliding rods is fixedly connected with a long plate, and the long plate is located on the top of the rotating rod and the counterweight bar.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. In the utility model, the backwash water is blocked by the design of the water retaining bar. The bearing seat will synchronously drive the connecting plate and the scraper shell to move during the movement. The scraper shell will synchronously drive the scraper plate 1 and the scraper plate 2 to move during the movement. In this process, the scraper shell will scrape and clean the impurities outside the water retaining bar, and the scraper plate 1 and the scraper plate 2 will scrape the impurities deposited on the top of the guide plate, which solves the problem of inconvenience in blocking the backwash water inside the filter press and stripping impurities;

[0019] 2. In the utility model, the rotating rod will synchronously drive the counterweight bar to leave the outer surface of the blocking plate during the rotation process and make the rotating rod rotate at an obtuse angle, and then the long plate will be loosened. At this time, the long plate will drive the sliding rod to slide outward again and reset, and the falling rotating rod and the counterweight bar will contact the sliding rod and be limited, which is convenient for the discharge of backwash water. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a partial structural schematic diagram of the utility model;

[0023] Figure 3 For this utility model Figure 2 A in the enlarged view;

[0024] Figure 4 It is a schematic diagram of a partial structure of the utility model;

[0025] Figure 5 For this utility model Figure 4 Enlarged view of point B in .

[0026] In the figure: 1. machine body; 2. guide plate; 3. baffle; 4. motor; 5. reciprocating screw; 6. water retaining bar; 7. bearing seat; 8. connecting plate; 9. scraper shell; 10. scraper 1; 11. scraper 2; 12. clamping plate; 13. blocking plate; 14. shell; 15. rotating rod; 16. counterweight bar; 17. sliding rod; 18. long board. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1~Figure 5 As shown, this embodiment proposes a sludge plate and frame filter press for sewage treatment, including a body 1, a guide plate 2 is fixedly connected to an outer side of the body 1, baffles 3 are fixedly connected to both sides of the top of the guide plate 2, a motor 4 is fixedly connected to an outer side of one of the baffles 3, the motor 4 is fixedly connected to a reciprocating screw 5 through an output shaft, a water retaining bar 6 is fixedly connected to the inside of the guide plate 2, a bearing seat 7 is provided on the outside of the reciprocating screw 5, the bearing seat 7 and the reciprocating screw 5 are connected by a ball nut pair, a connecting plate 8 is fixedly connected to the bottom of the bearing seat 7, and a scraper shell 9 is fixedly connected to the top of the connecting plate 8.

[0030] In this embodiment, the reciprocating screw rod 5 extends to the inside of the two baffles 3 and is connected to the two baffles 3 through bearings. The scraper shell 9 is configured to be U-shaped, which can facilitate the support and rotation of the reciprocating screw rod 5 .

[0031] In this embodiment, the interior of the scraper shell 9 is adapted to and in contact with the exterior of the water retaining strip 6 , and a scraper plate 10 and a scraper plate 2 11 are fixedly connected to both sides of the exterior of the scraper shell 9 , respectively, to prevent the precipitation of impurities.

[0032] In this embodiment, one side of the bottom of the scraper 2 11 contacts one side of the top of the guide plate 2, and one side of the bottom of the scraper 10 contacts the other side of the top of the guide plate 2, which can facilitate the separation of impurities.

[0033] During use, when it is necessary to block the backwash water, first the staff needs to open the inside of the machine body 1 and make it work. After working, the machine body 1 will synchronously guide the backwash water in the backwash process to the top of the guide plate 2. The guide plate 2 will block the backwash water through the design of the water retaining bar 6 during the process of collecting the backwash water. This measure can effectively prevent the backwash water from flowing into the mud bucket, keeping the moisture content of the mud bucket unchanged, thereby greatly improving the sludge dewatering efficiency. Since a large amount of impurities will be stored in the backwash water during the long-term blocking of sewage, the impurities will be precipitated inside the guide plate 2, which is not conducive to subsequent recovery and treatment. When the staff needs to turn on the motor 4, the motor 4 will synchronously drive the reciprocating screw 5 to rotate after being turned on. The reciprocating screw 5 will synchronously drive the bearing seat 7 to move during the rotation. The bearing seat 7 will synchronously drive the connecting plate 8 and the scraper shell 9 to move during the movement. The scraper shell 9 will synchronously drive the scraper 1 10 and the scraper 2 11 to move during the movement. In this process, the scraper shell 9 will scrape and clean the impurities on the outside of the water retaining strip 6, and the scraper 1 10 and the scraper 2 11 will scrape and clean the impurities deposited on the top of the guide plate 2, thereby achieving the cleaning of the impurities on the top of the guide plate 2 and ensuring the use effect.

[0034] Example 2

[0035] like Figure 2~Figure 3 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that one side of the two baffles 3 is fixedly connected with a clamping plate 12, and a sealing plate 13 is movably connected between the two clamping plates 12 through a rotating shaft, which can facilitate the sealing of backwash water.

[0036] In this embodiment, one side of the exterior of the two baffles 3 is fixedly connected to a shell 14 , and a rotating rod 15 is provided inside the two shells 14 to facilitate the fixing of the shells 14 .

[0037] In this embodiment, the shape of the rotating rod 15 is set to be a zigzag shape. The rotating rod 15 and the two shells 14 are movably connected through a damping bearing, which can facilitate the rotation of the rotating rod 15 and indirectly limit the blocking plate 13.

[0038] In this embodiment, counterweight bars 16 are fixedly connected to both sides of the outside of the rotating rod 15 , and the two counterweight bars 16 are in contact with both sides of the outside of the blocking plate 13 respectively, so as to ensure the blocking effect.

[0039] In this embodiment, sliding grooves are provided inside the two baffles 3 , and sliding rods 17 are slidably connected inside the two sliding grooves, which can facilitate the sliding operation of the sliding rods 17 .

[0040] In this embodiment, one end of the two sliding rods 17 is fixedly connected with a long plate 18 , and the long plate 18 is located on the top of the rotating rod 15 and the counterweight bar 16 .

[0041] During use, when it is necessary to discharge the backwash water, the staff pushes the long board 18, and the long board 18 will synchronously drive the sliding rod 17 to slide toward the inside of the baffle 3 during the pushing process. Then the staff rotates the rotating rod 15 upward, and the rotating rod 15 will synchronously drive the counterweight bar 16 to leave the outer surface of the sealing plate 13 during the rotation process and make the rotating rod 15 rotate at an obtuse angle. Then the long board 18 is released, and the long board 18 will drive the sliding rod 17 to slide outward again and reset, and the fallen rotating rod 15 and the counterweight bar 16 will contact the sliding rod 17 and be limited, so as to facilitate the rotation and opening of the sealing plate 13 and facilitate the discharge of the backwash water.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sludge plate-frame filter press for sewage treatment, comprising a body (1), characterized in that: A guide plate (2) is fixedly connected to one side of the exterior of the machine body (1), baffles (3) are fixedly connected to both sides of the top of the guide plate (2), a motor (4) is fixedly connected to one side of the exterior of one of the baffles (3), the motor (4) is fixedly connected to a reciprocating screw (5) via an output shaft, a water retaining bar (6) is fixedly connected to the interior of the guide plate (2), a bearing seat (7) is provided on the exterior of the reciprocating screw (5), the bearing seat (7) and the reciprocating screw (5) are connected via a ball nut pair, a connecting plate (8) is fixedly connected to the bottom of the bearing seat (7), and a scraper shell (9) is fixedly connected to the top of the connecting plate (8).

2. A sludge plate-frame filter press for sewage treatment according to claim 1, characterized in that: The reciprocating screw rod (5) extends into the interior of the two baffles (3) and is connected to the two baffles (3) via a bearing, and the scraper shell (9) is configured to be U-shaped.

3. A sludge plate-frame filter press for sewage treatment according to claim 1, characterized in that: The interior of the scraper shell (9) is adapted to and in contact with the exterior of the water retaining strip (6), and a scraper blade 1 (10) and a scraper blade 2 (11) are respectively fixedly connected to both sides of the exterior of the scraper shell (9).

4. A sludge plate-frame filter press for sewage treatment according to claim 3, characterized in that: One side of the bottom of the scraper plate 2 (11) contacts one side of the top of the guide plate (2), and one side of the bottom of the scraper plate 1 (10) contacts the other side of the top of the guide plate (2).

5. A sludge plate-frame filter press for sewage treatment according to claim 1, characterized in that: One side of each of the two baffles (3) is fixedly connected to a clamping plate (12), and a blocking plate (13) is movably connected between the two clamping plates (12) via a rotating shaft.

6. A sludge plate-frame filter press for sewage treatment according to claim 5, characterized in that: One side of the exterior of the two baffles (3) is fixedly connected to a housing (14), and a rotating rod (15) is provided inside the two housings (14).

7. A sludge plate-frame filter press for sewage treatment according to claim 6, characterized in that: The shape of the rotating rod (15) is set to be a zigzag shape, and the rotating rod (15) and the two housings (14) are movably connected via a damping bearing.

8. A sludge plate-frame filter press for sewage treatment according to claim 7, characterized in that: Counterweight bars (16) are fixedly connected to both sides of the exterior of the rotating rod (15), and the two counterweight bars (16) are in contact with both sides of the exterior of the blocking plate (13) respectively.

9. A sludge plate-frame filter press for sewage treatment according to claim 1, characterized in that: The two baffles (3) are provided with sliding grooves inside, and the two sliding grooves are slidably connected with sliding rods (17) inside.

10. A sludge plate-frame filter press for sewage treatment according to claim 9, characterized in that: One end of the two sliding rods (17) is fixedly connected to a long plate (18), and the long plate (18) is located on the top of the rotating rod (15) and the counterweight bar (16).

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