Sewage treatment equipment with filter pressing type filter

Abstract

The invention discloses sewage treatment equipment with a filter-press type filter, which comprises a sewage early-stage filter tank for preliminarily filtering sewage in the early stage in sewage treatment, a filter press for separating sludge from water and an adsorption tower, a pretreatment tank is arranged between the sewage early-stage filter tank and the filter press, the adsorption tower is connected with an MBR tank, and the MBR tank is connected with the filter-press type filter. A filter pressing assembly, a vibration assembly and a cleaning assembly are arranged on the filter press. The two adjacent filter pressing plates are cleaned through the cleaning brush capable of being folded and unfolded and the vertical rods, brush brushing and high-pressure water flow flushing are sequentially carried out along with movement of the cleaning box, brushing is carried out firstly, and then flushing is carried out, so that the cleaning efficiency and the cleaning strength are improved; the vibration assembly is additionally arranged on one side of the filter press, and after the filter pressing plate finishes filter pressing and is contracted and unfolded along with the telescopic cylinder, the transmission chain is driven to rotate to drive the gear and the bevel gear to rotate, so that the moving plate is close to the filter pressing plate, the electric vibrator is close to one side of the filter pressing plate, and the filter pressing plate and the filter cloth are driven to vibrate together.

Description

Technical Field

[0001] The present invention relates to a sewage treatment device, specifically a sewage treatment equipment with a pressure filter type filter, belonging to the technical field of sewage treatment. Background Art

[0002] Sewage, as the waste water from life and production, contains pathogen pollutants, oxygen-consuming pollutants, plant nutrients, toxic pollutants and impurities, etc. In the process of sewage treatment, filtering the sewage is a crucial step.

[0003] After retrieval, Chinese Patent No. CN117263470A discloses a water treatment device. The same water inlet tank is fixedly installed on two columns. The bottom inner wall of one side of the water inlet tank is fixedly installed with a water outlet pipe, and one end of the water outlet pipe extends to the outside of the water inlet tank. The treatment device further includes a filtering mechanism, and the filtering mechanism is installed on the top of the base. The filtering mechanism is located on one side of the water inlet tank. The present invention can achieve multi-stage filtration of sewage when filtering and treating sewage, so as to improve the cleanliness of sewage treatment. However, the above patent product filters sewage through an arc-shaped impurity removal plate and a filter plate, and impurities are extremely easy to accumulate on the surface of the filtering medium. This will not only cause the filtration resistance to continuously increase, resulting in a continuous decrease in the filtration efficiency, but also for some fine particles and colloidal substances, the filtering effect is limited, and it is difficult to achieve high-precision solid-liquid separation, resulting in relatively poor water quality of the effluent. Accordingly, the present application proposes a sewage treatment equipment with a pressure filter type filter. Summary of the Invention

[0004] The purpose of the present invention is to provide a sewage treatment equipment with a pressure filter type filter to solve the above problems.

[0005] The present invention realizes the above purpose through the following technical solutions. A sewage treatment equipment with a pressure filter type filter includes a sewage pre-filtering tank for initially filtering sewage in the early stage of sewage treatment, a filter press for separating sludge from water, and an adsorption tower. A pretreatment tank is provided between the sewage pre-filtering tank and the filter press. The adsorption tower is connected to an MBR tank. The filter press is provided with a pressure filtering component, a vibration component, and a cleaning component; The pressure filtering component drives an extrusion plate to squeeze a plurality of filter plates through a telescopic cylinder to form a filter cavity for sewage filtering operation; The vibration component is used to vibrate a plurality of the filter plates after the filter plates are reset during filtering, so that the mud plates attached to the filter cloth of the filter plates fall downward; The cleaning component is used to clean the impurities attached to the filter plates after vibration treatment. Rail rods are provided on both sides of the top end of the filter press. The rail rods are connected with a cleaning box. A cleaning brush and a vertical rod are provided at the bottom end of the cleaning box. A plurality of sector-shaped high-pressure spray nozzles are equidistantly arranged on the vertical rod.

[0006] Preferably, a water storage tank is provided at the top of the cleaning box, a placement groove is provided at the bottom of the cleaning box, moving grooves are provided on both sides of the placement groove and away from the rail rod, a first screw rod and a second screw rod are respectively provided in the two moving grooves, thread blocks are connected to both the first screw rod and the second screw rod, a rotating rod is provided on one side of the thread block close to the notch of the moving groove, and the rotating rod is connected to the cleaning brush and the vertical rod respectively on one side close to the two thread blocks.

[0007] Preferably, the rotating rod penetrates through the two thread blocks, an execution motor is connected to one end of the rotating rod, a driving motor is connected to one end of the first screw rod, and a conveyor belt is connected between one ends of the first screw rod and the second screw rod close to the driving motor.

[0008] Preferably, the two thread blocks are connected to the first screw rod and the second screw rod by screw nuts, the rotating rod is fixedly connected to the cleaning brush and the vertical rod, the rotating rod is rotatably connected to the thread block, and the thread block is snap-connected to the ends of the cleaning brush and the vertical rod.

[0009] Preferably, the telescopic cylinder is arranged on one side of the top of the filter press, the extrusion plate is fixedly connected to the execution end of the telescopic cylinder, connecting ropes are connected between both sides of the plurality of filter plates and both sides of the extrusion plate, and limiting rods are arranged on both sides of the top of the filter press and below the rail rod, and both sides of the plurality of filter plates and the extrusion plate are movably connected to the limiting rods.

[0010] Preferably, an extraction pipe is provided between the preliminary sewage filtration tank and the pretreatment tank, a feed pump connection pipe is provided at one end of the top of the filter press away from the telescopic cylinder, the end of the feed pump connection pipe away from the filter press is connected to the pretreatment tank, and filter water conveying pipelines are provided on both sides of one end of the filter press close to the feed pump connection pipe, and the other ends of the filter water conveying pipelines are connected to the adsorption tower.

[0011] Preferably, a connection block is provided on one side of the filter plate close to the extrusion plate, a transmission chain is provided inside the filter press housing on one side of the connection block away from the filter plate, rotating gears are provided at both ends inside the transmission chain, an engagement gear is provided on one side of the top of the rotating gear away from the filter plate, a bevel gear set is provided on the top of the engagement gear, and a lead screw is provided on one side of the bevel gear set away from the engagement gear.

[0012] Preferably, the bevel gear set is arranged in an "L" shape, and a moving plate is provided at the top of the lead screw.

[0013] Preferably, the moving plate is connected to the lead screw nut, and a plurality of electric vibrators are equidistantly arranged on one side of the moving plate close to the filter press plate.

[0014] Preferably, a ground rail is provided at the bottom end of the filter press, and a mud plate collection box and a waste water collection box are provided at the top end of the ground rail. A filter interception net is provided in the middle of the waste water collection box.

[0015] The present invention has the following beneficial effects: Through flocculation and filter press pretreatment, a large amount of suspended matter can be quickly removed, reducing the turbidity and solid content of the sewage. In the advanced treatment stage, physical and chemical methods and biological methods can specifically remove various organic matters, heavy metal ions, nutrients such as nitrogen and phosphorus, and microorganisms, comprehensively purifying the water quality, effectively reducing pollutant indicators such as COD, BOD, ammonia nitrogen, and total phosphorus, and the effluent water quality can meet strict discharge standards or reuse requirements.

[0016] The reuse of water resources and the recycling of resources reduce the production cost of the enterprise and improve the economic benefits of the enterprise. At the same time, the dependence on external water resources is reduced, ensuring the production stability of the enterprise to a certain extent and avoiding production stagnation caused by water resource shortage.

[0017] A cleaning box is added at the top end of the filter press. The adjacent two filter press plates are cleaned by the foldable and deployable cleaning brush and vertical rod. As the cleaning box moves, the brush is driven to move and the high-pressure water flow is used for flushing in sequence. First, the brush is moved and then the flushing is carried out, improving the cleaning efficiency and cleaning strength. A vibration assembly is added on one side of the filter press. After the filter press plate finishes filtering and expands with the contraction of the telescopic cylinder, it will drive the transmission chain to rotate, driving the gear and bevel gear to rotate, realizing the movement of the moving plate close to the filter press plate, bringing the electric vibrator to the side close to the filter press plate, and driving the filter press plate and the filter cloth to vibrate together. Through the vibration operation of the electric vibrator, the vibration frequency is set in the resonance frequency range of the filter plate and the mud cake, effectively loosening the mud plate, so that it can better fall off from the filter cloth of the filter press plate, enhancing the vibration-assisted plate removal effect, increasing the mud plate falling speed, and at the same time reducing the possibility of filter cloth damage. A ground rail is added at the bottom end of the filter press. During vibration, the mud plate collection box collects the mud plates on the filter press plate for subsequent overall treatment; during cleaning, the waste water collection box is moved to the bottom end of the filter press to collect the crushed soil and impurities, as well as the water source sprayed by the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional view of the overall structure of a sewage treatment device with a filter press type filter proposed by the present invention; Figure 23D view of the filter press structure of a sewage treatment device with a pressure filter type filter proposed by the present invention; Figure 3 3D view of the filter press structure of a sewage treatment device with a pressure filter type filter proposed by the present invention; Figure 4 3D view of the filter press assembly and vibration assembly structure of a sewage treatment device with a pressure filter type filter proposed by the present invention; Figure 5 3D view of the filter press assembly and vibration assembly structure of a sewage treatment device with a pressure filter type filter proposed by the present invention; Figure 6 3D view of the filter press structure of a sewage treatment device with a pressure filter type filter proposed by the present invention; Figure 7 3D view of the collection tank structure of a sewage treatment device with a pressure filter type filter proposed by the present invention; Figure 8 3D view of the cleaning assembly structure of a sewage treatment device with a pressure filter type filter proposed by the present invention; Figure 9 3D view of the cleaning assembly structure of a sewage treatment device with a pressure filter type filter proposed by the present invention; Figure 10 3D view of the cleaning assembly structure of a sewage treatment device with a pressure filter type filter proposed by the present invention.

[0019] In the figure: 1. Filter press; 2. Feed pump connecting pipe; 3. Filtered water conveying pipeline; 4. Filter press plate; 5. Filter press assembly; 501. Telescopic cylinder; 502. Extrusion plate; 503. Connecting rope; 504. Limit rod; 6. Vibration assembly; 601. Connecting block; 602. Transmission chain; 603. Rotating gear; 604. Connecting gear; 605. Bevel gear set; 606. Lead screw; 607. Moving plate; 608. Electric vibrator; 7. Cleaning assembly; 701. Rail rod; 702. Cleaning box; 703. Water storage tank; 704. Placing groove; 705. Driving motor; 706. First screw; 707. Second screw; 708. Conveyor belt; 709. Threaded block; 710. Rotating rod; 711. Execution motor; 712. Cleaning brush; 713. Vertical rod; 714. Sector high-pressure spray head; 715. Moving groove; 8. Ground rail; 801. Mud plate collection box; 802. Waste water collection box; 803. Filter interception net; 9. Preliminary sewage filtration pool; 901. Extraction pipe; 10. Pretreatment pool; 11. Adsorption tower; 12. MBR pool. Detailed implementation method

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1:

[0021] Refer to Figures 1-7 , a sewage treatment device with a pressure filter type filter, including a sewage pre-filtering tank 9 for initially filtering sewage in the early stage of sewage treatment, a filter press 1 for separating sludge from water, and an adsorption tower 11. A pretreatment tank 10 is provided between the sewage pre-filtering tank 9 and the filter press 1. The adsorption tower 11 is connected to an MBR tank 12. The filter press 1 is provided with a pressure filter assembly 5, a vibration assembly 6, and a cleaning assembly 7; The pressure filter assembly 5 drives the extrusion plate 502 through the telescopic cylinder 501 to squeeze a plurality of filter plates 4 to form a filter cavity for sewage filtration operation.

[0022] The telescopic cylinder 501 is arranged on one side of the top end of the filter press 1. The extrusion plate 502 is fixedly connected to the execution end of the telescopic cylinder 501. Connecting ropes 503 are connected to both sides of the extrusion plate 502 and both sides of a plurality of filter plates 4. Limiting rods 504 are arranged on both sides of the top end of the filter press 1 and below the rail rod 701. Both sides of a plurality of filter plates 4 and the extrusion plate 502 are movably connected to the limiting rods 504. A suction pipe 901 is provided between the sewage pre-filtering tank 9 and the pretreatment tank 10. One end of the feed pump connecting pipe 2 away from the filter press 1 is connected to the pretreatment tank 10. Filtered water conveying pipelines 3 are arranged on both sides of one end of the filter press 1 close to the feed pump connecting pipe 2. The other end of the filtered water conveying pipelines 3 is connected to the adsorption tower 11.

[0023] The bevel gear set 605 is arranged in an "L" shape. A moving plate 607 is provided at the top end of the lead screw 606. The moving plate 607 is threadedly connected to the lead screw 606. A plurality of electric vibrators 608 are equidistantly arranged on one side of the moving plate 607 close to the filter plate 4.

[0024] A ground rail 8 is provided at the bottom end of the filter press 1. A mud plate collection box 801 and a waste water collection box 802 are provided on the top end of the ground rail 8. A filter interception net 803 is provided in the middle of the waste water collection box 802.

[0025] In this embodiment, it should be noted that when treating sewage, first pour the sewage to be treated into the sewage pre-filtering tank 9. The inclined grid plate inside the sewage pre-filtering tank 9 performs grid filtration on the larger impurities in the sewage. At the same time, the sewage undergoes sand sedimentation in the sewage pre-filtering tank 9 to remove larger suspended particles, sand and other impurities in the sewage, preventing these substances from entering the pressure filtration equipment, causing equipment wear or blockage, and affecting the pressure filtration efficiency and effect.

[0026] The extraction pipe 901 extracts the water source in the middle section of the preliminary sewage filtration tank 9 and makes it enter the pretreatment tank 10. According to the nature and composition of the sewage, a suitable flocculant is selected and added to the pretreatment tank 10. The flocculant can cause the fine suspended particles, colloids and other impurities in the sewage to aggregate into larger flocs, which are convenient to be intercepted by the filter medium during the subsequent pressure filtration process, improve the filtration effect and reduce the moisture content of the filter cake.

[0027] When filtering and treating the sewage, first, the telescopic cylinder 501 is started to drive the pressing plate 502 at the execution end to move, and squeeze the multiple filter plates 4, so that the unfolded filter plates 4 are folded to form a filter cavity.

[0028] When treating the sewage, the sewage in the pretreatment tank 10 is connected through the feed pump connecting pipe 2, and the sewage enters the filter press 1, and is pressure-filtered in the filter cavity formed by the multiple filter plates 4. The sewage is sent into the filter chamber under a certain pressure. The solid particles of the sewage are intercepted on the surface of the filter cloth of the filter plate 4 to form a mud plate, while the liquid passes through the filter cloth and is discharged through the flow channel on the filter plate 4 to become purified water. The filtered water source is output through the filtered water delivery pipeline 3 and enters the adsorption tower 11. The adsorption tower 11 is divided into two parts. The tower near the filtered water delivery pipeline 3 is filled with adsorbents such as activated carbon. Pollutants such as organic matter and heavy metal ions in the sewage are adsorbed on the surface of the adsorbent, further reducing the pollutant concentration in the sewage, improving the water quality and reducing the burden of subsequent biological treatment.

[0029] An ion exchange resin column is provided inside the side of the adsorption tower 11 away from the filtered water delivery pipeline 3. When the filtered water passes through the resin column, the target ions exchange with the exchangeable ions on the resin, thereby achieving the removal or recovery of ions. For example, strongly acidic cation exchange resin can be used to remove calcium and magnesium ions in the sewage to achieve water softening; weakly basic anion exchange resin can adsorb and remove nitrates, phosphates, etc. in the sewage.

[0030] Finally, the filtered water passing through the adsorption tower 11 enters the MBR tank 12 for sewage, and pollutants such as organic matter, ammonia nitrogen and total phosphorus in the sewage are removed through the degradation of microorganisms. The membrane module replaces the traditional secondary sedimentation tank for efficient solid-liquid separation, ensuring stable and clear effluent water quality. The MBR process has a high sludge concentration and a long sludge age, and has a high removal efficiency for pollutants, which can effectively meet strict water quality discharge standards or realize reclaimed water reuse. Example Two:

[0031] Different from Example One, referring to Figures 1-3 , this example also has the following further content: The vibration assembly 6 is used to perform a vibration operation on the multiple filter plates 4 after the filter plates 4 are filtered and reset, so that the mud plates attached to the filter cloth of the filter plates 4 fall downward.

[0032] On one side of the filter press plate 4 near the extrusion plate 502, there is a connecting block 601. On the side of the connecting block 601 away from the filter press plate 4 and inside the housing of the filter press 1, there is a conveyor chain 602. At both ends inside the conveyor chain 602, there are rotating gears 603. On the side of the top of the rotating gear 603 away from the filter press plate 4, there is an engaging gear 604. On the top of the engaging gear 604, there is a bevel gear set 605. On the side of the bevel gear set 605 away from the engaging gear 604, there is a lead screw 606.

[0033] In this embodiment, it should be noted that: when the sewage filtration is completed, the telescopic cylinder 501 drives the connected filter press plate 4 to unfold, and the connecting rope 503 limits the distance between the filter press plates 4. The filter press plate 4 near the feed pump end is fixedly connected to this end of the filter press 1, so the group of filter press plates 4 will not move as a whole with the contraction of the telescopic cylinder 501.

[0034] When the filter press plate 4 unfolds, the mud plates extruded into cakes inside are exposed. At this time, the mud plate collection box 801 is moved to the bottom of the filter press 1. When the filter press plate 4 unfolds, the connecting block 601 at the bottom of the filter press plate 4 on the side near the extrusion plate 502 drives the conveyor chain 602 to move, thereby driving the rotating gear 603 to rotate, that is, causing the engaging gear 604 and the bevel gear set 605 to rotate, realizing the rotation of the lead screw 606. The moving plate 607 threadedly connected to the lead screw 606 approaches the filter press plate 4, bringing the electric vibrator 608 close to the outside of the filter press plate 4 to vibrate the filter press plate 4 and make the mud plates fall off.

[0035] Through the vibration operation of the electric vibrator 608, the vibration frequency is set in the resonance frequency range of the filter press plate 4 and the mud cake, effectively loosening the mud plates, so that they can better fall off from the filter cloth of the filter press plate 4, enhancing the vibration-assisted plate removal effect, increasing the mud plate falling-off speed, and at the same time reducing the possibility of filter cloth damage. Embodiment Three:

[0036] Refer to Figures 1-3 and Figures 8-10 Compared with Embodiment One and Embodiment Two, in this embodiment: the cleaning component 7 is used to clean the impurities attached to the filter press plate 4 after vibration treatment. Rail rods 701 are provided on both sides at the top of the filter press 1. A cleaning box 702 is connected to the rail rods 701. At the bottom of the cleaning box 702, there are cleaning brushes 712 and vertical rods 713. A plurality of sector-shaped high-pressure nozzles 714 are equidistantly provided on the vertical rods 713.

[0037] At the top of the cleaning box 702, there is a water storage tank 703. At the bottom of the cleaning box 702, there is a placement groove 704. On both sides of the placement groove 704 and away from the rail rod 701, there are moving grooves 715. Inside the two moving grooves 715, there are a first screw rod 706 and a second screw rod 707 respectively. Threaded blocks 709 are connected to both the first screw rod 706 and the second screw rod 707. On one side of the threaded block 709 near the notch of the moving groove 715, there is a rotating rod 710. On one side of the rotating rod 710 near the two threaded blocks 709, it is connected to a cleaning brush 712 and a vertical rod 713 respectively.

[0038] The rotating rod 710 passes through the two threaded blocks 709. One end of the rotating rod 710 is connected to an actuating motor 711. One end of the first screw rod 706 is connected to a driving motor 705. A conveyor belt 708 is connected between one ends of the first screw rod 706 and the second screw rod 707 near the driving motor 705. The two threaded blocks 709 are connected to the first screw rod 706 and the second screw rod 707 by screw nuts. The rotating rod 710 is fixedly connected to the cleaning brush 712 and the vertical rod 713. The rotating rod 710 is rotatably connected to the threaded block 709. The threaded block 709 is snap-connected to the ends of the cleaning brush 712 and the vertical rod 713.

[0039] In this embodiment, it should be noted that: after the vibration cleaning is completed, the cleaning assembly 7 is started, and the cleaning box 702 moves along with the rail rod 701. There is a camera at the bottom of the cleaning box 702 to effectively capture the position of the filter press plate 4. When the cleaning box 702 moves close to the first filter press plate, at this time, the actuating motor 711 is started to drive the rotating rod 710 to rotate, so that the cleaning brush 712 and the vertical rod 713 stored in the placement groove 704 rotate until they are perpendicular to the cleaning box 702. At this time, the cleaning brush 712 is close to the filter press plate 4, and the vertical rod 713 is close to the extrusion plate 502. The driving motor 705 is started to drive the cleaning brush 712 to brush and clean the filter press plate 4. At this time, the fan-shaped high-pressure nozzle 714 is not started.

[0040] When the cleaning box 702 moves to the position of the middle filter press plate 4 and the cleaning brush 712 brushes and cleans the previous filter press plate 4, the fan-shaped high-pressure nozzle 714 on the vertical rod 713 sprays high-pressure water flow. As the first screw rod 706 and the second screw rod 707 rotate, the adjacent two filter press plates 4 are respectively brushed and cleaned with high-pressure water. And the filter press plate 4 for high-pressure water flushing is the one that has been brushed and processed by the cleaning brush 712, that is, the filter press plate 4 is sequentially brushed and rinsed, improving the cleaning efficiency.

[0041] During cleaning, the wastewater collection box 802 is moved to the bottom of the filter press 1 to collect the crushed soil and impurities, and to collect the water source sprayed by the nozzle. The filter intercepting net 803 intercepts the impurities.

Claims

1. A sewage treatment device with a pressure filtration type filter, comprising a preliminary sewage filtration tank (9) for preliminarily filtering sewage in the early stage of sewage treatment, a filter press (1) for separating sludge from water, and an adsorption tower (11), characterized in that: A pretreatment tank (10) is provided between the sewage pre-filter tank (9) and the filter press (1). The adsorption tower (11) is connected to the MBR tank (12). The filter press (1) is provided with a filter press assembly (5), a vibration assembly (6) and a cleaning assembly (7). The filter press assembly (5) drives the extrusion plate (502) through the telescopic cylinder (501) to extrude a filter cavity composed of a plurality of filter plates (4) for sewage filtration operation. The vibration assembly (6) is used to vibrate a plurality of the filter plates (4) after the filter plates (4) are reset during filtration, so that the mud plates attached to the filter cloth of the filter plates (4) fall downward. The cleaning assembly (7) is used to clean the impurities attached to the filter plates (4) after vibration treatment. Rail rods (701) are provided on both sides of the top end of the filter press (1). The rail rods (701) are connected with a cleaning box (702). A cleaning brush (712) and a vertical rod (713) are provided at the bottom end of the cleaning box (702). A plurality of fan-shaped high-pressure nozzles (714) are equidistantly provided on the vertical rod (713).

2. The sewage treatment equipment with a pressure filtration type filter according to claim 1, wherein: A water storage tank (703) is provided at the top end of the cleaning box (702). A placement groove (704) is provided at the bottom end of the cleaning box (702). Moving grooves (715) are provided on both sides of the placement groove (704) far away from the rail rods (701). A first screw rod (706) and a second screw rod (707) are respectively provided in the two moving grooves (715). Threaded blocks (709) are connected to both the first screw rod (706) and the second screw rod (707). A rotating rod (710) is provided on one side of the threaded block (709) close to the notch of the moving groove (715). The rotating rod (710) is connected to the cleaning brush (712) and the vertical rod (713) respectively on one side close to the two threaded blocks (709).

3. A sewage treatment device with a pressure filtration filter according to claim 2, characterized in that: The rotating rod (710) penetrates through the two threaded blocks (709). One end of the rotating rod (710) is connected with an execution motor (711). One end of the first screw rod (706) is connected with a driving motor (705). A conveyor belt (708) is connected between one ends of the first screw rod (706) and the second screw rod (707) close to the driving motor (705).

4. The sewage treatment equipment with a pressure filter type filter according to claim 3, characterized in that: The two threaded blocks (709) are connected with the first screw rod (706) and the second screw rod (707) by screw threads. The rotating rod (710) is fixedly connected with the cleaning brush (712) and the vertical rod (713). The rotating rod (710) is rotatably connected with the threaded block (709). The threaded block (709) is snap-connected with the ends of the cleaning brush (712) and the vertical rod (713).

5. The sewage treatment device with a pressure filter type filter according to claim 4, characterized in that: The telescopic cylinder (501) is arranged on one side of the top end of the filter press (1). The extrusion plate (502) is fixedly connected to the execution end of the telescopic cylinder (501). Connecting ropes (503) are connected to both sides of the extrusion plate (502) and both sides of the plurality of filter plates (4). Limiting rods (504) are arranged on both sides of the top end of the filter press (1) and below the rail rods (701). Both sides of the plurality of filter plates (4) and the extrusion plate (502) are movably connected to the limiting rods (504).

6. The sewage treatment equipment with a pressure filtration type filter according to claim 5, characterized in that: A suction pipe (901) is arranged between the sewage pre-filtering tank (9) and the pretreatment tank (10). One end of the top end of the filter press (1) far from the telescopic cylinder (501) is provided with a feed pump connecting pipe (2). The end of the feed pump connecting pipe (2) far from the filter press (1) is connected to the pretreatment tank (10). Filtered water conveying pipelines (3) are arranged on both sides of one end of the filter press (1) close to the feed pump connecting pipe (2). The other end of the filtered water conveying pipeline (3) is connected to the adsorption tower (11).

7. A sewage treatment device with a pressure filtration type filter according to claim 6, characterized in that: A connecting block (601) is arranged on one side of the filter plate (4) close to the extrusion plate (502). A transmission chain (602) is arranged inside the housing of the filter press (1) on the side of the connecting block (601) far from the filter plate (4). Rotating gears (603) are arranged at both ends inside the transmission chain (602). An engaging gear (604) is arranged on the side of the top end of the rotating gear (603) far from the filter plate (4). A bevel gear set (605) is arranged on the top end of the engaging gear (604). A lead screw (606) is arranged on the side of the bevel gear set (605) far from the engaging gear (604).

8. A sewage treatment device with a pressure filter type filter according to claim 7, characterized in that: The bevel gear set (605) is arranged in an "L" shape. A moving plate (607) is arranged on the top end of the lead screw (606).

9. The sewage treatment equipment with a pressure filtration type filter according to claim 8, characterized in that: The moving plate (607) is in threaded connection with the lead screw (606). A plurality of electric vibrators (608) are arranged at equal intervals on the side of the moving plate (607) close to the filter plate (4).

10. A sewage treatment device with a pressure filter type filter according to claim 9, characterized in that: The bottom end of the filter press (1) is provided with a ground rail (8). A mud plate collection box (801) and a waste water collection box (802) are provided in a matching manner on the top end of the ground rail (8). A filter intercepting net (803) is arranged in the middle inside the waste water collection box (802).

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