Sludge filter pressing device and pentaerythritol wastewater treatment system adopting same

Abstract

The invention relates to the technical field of filter pressing, and mainly discloses a sludge filter pressing device and a pentaerythritol wastewater treatment system adopting the same, the sludge filter pressing device comprises a rack, a filter pressing plate, a hydraulic cylinder, a plate opening mechanism and a material extruding mechanism, the plate opening mechanism comprises a fixed plate, one side, facing the rack, of the fixed plate is provided with a first sliding rail, and the first sliding rail is slidably provided with a clamping module. According to the plate opening mechanism, the extruded filter pressing plates can be limited, the filter pressing plates can be moved and opened in sequence when the filter pressing plates need to be opened subsequently, sludge cakes between every two adjacent filter pressing plates can be rapidly disengaged in cooperation with the material extruding mechanism at the top of the rack, subsequent unified treatment is facilitated, and the working efficiency is improved. By means of the arrangement, much time for opening the filter pressing plates is saved, the filter pressing plates are more stable after follow-up filter pressing, the arranged pentaerythritol wastewater treatment system thoroughly degrades organic matter such as formaldehyde in sewage through microorganisms, and the pentaerythritol wastewater treatment system has the advantages of being mature in technology, stable and reliable in operation and the like.

Description

Technical Field

[0001] The invention relates to the technical field of filter pressing, in particular to a sludge filter pressing device and a pentaerythritol wastewater treatment system using the device. Background Art

[0002] The filter press is a mechanical device that uses a special filter medium to exert a certain pressure on an object, causing the liquid to seep out. It is a commonly used solid-liquid separation device.

[0003] Filter presses are widely used in the final stage of sewage treatment, in which sludge must be filtered before subsequent treatment. During the sludge filtration process, the filtration operation is often carried out layer by layer through filter press plates. The filter press plates are squeezed layer by layer to finally squeeze out the water in the two adjacent sludge pieces. Finally, the filter press plates need to be opened one by one to collect and process the sludge cakes. In existing filter press equipment, the opening of the filter press plates often requires a separate lifting and opening device, which makes the collection of the sludge cakes relatively slow. In addition, after the filter press plates are opened, the sludge cakes may adhere to the surface of the filter press plates. At this time, the staff needs to handle it manually, which is very cumbersome and dangerous.

[0004] At the same time, in the process of using a filter press to filter the sludge of the pentaerythritol wastewater treatment system, the inventor found that the pentaerythritol wastewater has the characteristics of high COD concentration, high formaldehyde content, high toxicity and inhibition of microbial degradation. It is a high-concentration toxic and harmful wastewater, and problems that are difficult to explain and handle will be encountered during the treatment process.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] The object of the present invention is to provide a sludge filter press device and a pentaerythritol wastewater treatment system using the device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: The cam is provided with a plurality of support rails, each of which is provided with a plurality of support rails, each of which is provided with a plurality of support rails, each of which is provided with a plurality of support rails, each of which is provided with a plurality of support rails. The cam is provided with a first end fixedly mounted on the support frame, and the second end of the first end is fixedly mounted on the support frame, and the cam is provided with a first end fixedly mounted on the support frame, and the cam is provided with a second end fixedly mounted on the support frame.

[0008] Furthermore, a first fixing frame is fixedly installed at one end of the frame, the hydraulic cylinder is fixedly installed at the middle of one end face of the first fixing frame away from the frame, the output shaft of the hydraulic cylinder passes through the center of the first fixing frame and is fixedly installed with a push rod, and an extrusion plate is fixedly installed on the end of the push rod away from the hydraulic cylinder, the extrusion plate is arranged inside the frame, and a pulley is rotatably installed on the extrusion plate toward one side of the plate opening mechanism, and channel steel arranged along its length direction is also fixedly installed on both sides of the top of the frame, and the pulley is slidably arranged on the channel steel, and a second fixing frame is fixedly installed at one end of the frame away from the hydraulic cylinder, and a water outlet is provided at the center of one end of the second fixing frame away from the frame, grooves are provided at the centers of both end faces of the filter press plate, a water through hole is provided in the center of the filter press plate, and the water through hole is connected to the two grooves on the two end faces of the filter press plate, and a pillar is also fixedly installed on the top of the first fixing frame, and a drainage outlet is provided at the bottom of the outer wall of the filter press plate.

[0009] The top end portion of the movable block is provided with a cross plate, and the cross plate is fixedly installed with a clamping plate towards the bottom of one end of the filter press plate, and the bottom end portion of the clamping plate is provided with a bayonet groove, and the width of the bayonet groove is greater than the width of the handle. The cross plate away from the clamping plate is symmetrically provided with a first sliding hole arranged along the length direction of the cross plate along the center, and a limiting nail is slidably provided in the first sliding hole, and the bottom end of the limiting nail is fixedly installed on the moving block, and the cross plate away from the clamping plate is fixedly installed with a push-pull rod arranged along its length direction. The top end of the fixed plate away from the frame is fixedly installed with a push-pull cylinder. The output shaft end of the push-pull cylinder is fixedly installed with a connecting frame, and the top end of the connecting frame is fixedly installed with a push-pull plate, and the push-pull plate is provided with a second sliding hole arranged along its length direction on the push-pull plate. The push-pull rod away from the cross plate One end passes through the second sliding hole, and the push-pull rod is fixedly installed with limiting nuts arranged on both sides of the push-pull plate.

[0010] Furthermore, the extrusion mechanism includes a crossbeam arranged directly above the frame, the crossbeam is provided with two and is arranged along the length direction of the frame, a third fixing frame is fixedly installed at the end of the crossbeam, the third fixing frame is fixedly installed on the pillar and / or the second fixing frame, a moving component is installed on the top of the crossbeam, an extrusion component arranged above the frame is installed at the bottom of one end of the moving component, the moving component includes two vertical plates arranged parallel to each other, the top ends of the two vertical plates are fixedly connected by a top plate, gears are rotatably installed on the outer side walls of the vertical plates near both ends, and the top of the crossbeam is fixed A rack is installed along its length direction, the gear is meshed with the rack, and the two gears on the side away from the top plate are fixedly connected by a connecting shaft, and a connecting plate is fixedly installed on the end of the vertical plate away from the top plate, and a reducer is fixedly installed on the side of the connecting plate facing the connecting shaft, and the top of the reducer is transmission-connected to a driving motor, and the reducer and the connecting shaft are transmission-connected, a support frame is fixedly installed on the top of the top plate, and a lifting cylinder is fixedly installed on the top of the support frame, and the output shaft of the lifting cylinder is arranged through the top plate, and the extrusion assembly is fixedly installed on the end of the output shaft of the lifting cylinder.

[0011] Furthermore, a support plate is fixedly installed on the outer wall of the vertical plate, a support seat is fixedly installed on the top end of the support plate, an adjuster is installed on the top end of the support seat, the adjuster is electrically connected to the drive motor, and a wire trough is fixedly installed on the outer side of the crossbeam rod close to one side of the support plate, a wire harness is laid in the wire trough, and the end of the wire harness is connected to the adjuster.

[0012] Furthermore, the extrusion assembly includes a horizontally arranged strip plate, which is arranged along the length direction of the frame, a connecting seat is fixedly installed at the top center of the strip plate, the output shaft end of the lifting cylinder is fixedly installed in the connecting seat, end plates are fixedly installed at both ends of the bottom of the strip plate, and a bottom plate arranged along the length direction of the strip plate is fixedly installed at the bottom of the end plate, and an adjusting roller is rotatably installed between the two end plates, a plurality of grooves are symmetrically opened along the center of the adjusting roller, and the grooves are radially symmetrically opened on the outer wall of the adjusting roller, and a second strip hole is symmetrically opened along the center of the bottom plate and arranged along its length direction The bottom outer side and the center of the bottom plate are fixedly installed with a second slide rail symmetrically arranged along its length direction, and a mud pushing module is slidably installed on the second slide rail, and the top of the mud pushing module passes through the second strip hole and is inserted in the groove, and the end plate away from one end of the connecting shaft protrudes from the top of the strip plate, and an adjusting motor is fixedly installed on one side of the end plate away from one end of the connecting shaft toward the connecting seat, and the output shaft end of the adjusting motor passes through the end plate and is fixedly installed with a driving pulley, and the end of the adjusting roller away from the connecting shaft passes through the end plate and is fixedly installed with a driven pulley, and the driving pulley and the driven pulley are connected by a transmission belt.

[0013] Furthermore, the mud pushing module includes a U-shaped frame, a strip block is fixedly installed on the top end of the U-shaped frame, a convex shaft is rotatably installed on the top center of the strip block, two second strip holes are set through the top two ends of the U-shaped frame, the strip block is arranged between the adjusting roller and the bottom of the base plate, a second slide is fixedly installed on the center top or the bottom of the outer wall of the U-shaped frame, the second slide located at the center top of the U-shaped frame is slidably arranged on the second slide rail located between the two second strip holes, and the second slide located at the bottom of the outer wall of the U-shaped frame is slidably arranged on the second slide rails located on both sides of the bottom of the base plate, a lifting block is fixedly installed on the bottom end of the U-shaped frame, and a mud pushing plate is fixedly installed on the bottom of the lifting block.

[0014] Furthermore, a slot is provided at the center of the top of the push mud plate, and the bottom end of the lifting block is inserted into the slot. A notch is also provided symmetrically along the center of the top of the push mud plate, and a positioning hole is provided on a side wall of the notch facing the slot, and the positioning hole is connected to the notch. A locking hole is provided at the bottom of the lifting block, and a strip groove is also provided at the bottom of the push mud plate along its length direction.

[0015] A pentaerythritol wastewater treatment system using the above-mentioned sludge filter press device is characterized by mainly comprising the following steps: S1: First, the pentaerythritol wastewater is divided into high-concentration wastewater, low-concentration wastewater, accident emergency wastewater, initial rainwater, and domestic sewage according to different sources, and each sewage is collected separately in its own collection pool; S2: Mix and regulate high-concentration wastewater, low-concentration wastewater, initial rainwater, and accident emergency wastewater in a comprehensive wastewater regulating tank, and set up an aeration and stirring system in the comprehensive wastewater regulating tank; S3: Pump the wastewater from the comprehensive wastewater regulating pool into the pretreatment biochemical pool, adjust the nutrients of the pentaerythritol wastewater in the pretreatment biochemical pool, and reduce the formaldehyde content entering the UASB anaerobic reactor; S4: The effluent from the pretreatment tank enters the anaerobic water distribution tank, where it is mixed with domestic sewage and then regulated again before entering the next level of treatment unit. An aeration and stirring system is set up in the water distribution tank to homogenize the water quality. S5: Pump the effluent from the anaerobic water distribution tank into the UASB anaerobic reactor; S6: The effluent from the UASB anaerobic reactor enters the oxidation ditch, which includes an anaerobic section, an aerobic section, and a secondary sedimentation tank; S7: The effluent from the aerobic section of the oxidation ditch enters the secondary sedimentation tank, where the aerobic sludge is separated from the mud and water, and the effluent is clarified. The precipitated sludge is returned to the anaerobic section of the oxidation ditch through the sludge return pump; S8: The supernatant of the secondary sedimentation tank is introduced into the coagulation reaction sedimentation tank, the pH is controlled within the range of 7-8, and a polymer coagulant and a polymer flocculant are added; S9: The effluent from the coagulation sedimentation tank is temporarily stored in the clean water tank. If the water in the clean water tank does not meet the standards, it will be returned to the accident emergency tank for further treatment. If it meets the standards, it will be discharged or reused. S10: The residual sludge from each biochemical pool and the physicochemical sludge from the coagulation reaction sedimentation are respectively discharged into the biochemical sludge thickening pool and the physicochemical sludge thickening pool for temporary storage. The sludge from the biochemical sludge thickening pool and the physicochemical sludge thickening pool are respectively pumped into the filter press room for filtration and dehydration.

[0016] Furthermore, in step S2, an aeration stirring system is provided in the comprehensive wastewater regulating tank, and the aeration intensity is 2 to 4 m 3 / (m 2 h); In step S3, a submersible mixer is set in the pretreatment tank, and the power configuration is 6 (W / m 3 The pretreatment tank is provided with formaldehyde-resistant fixed filler with a specific surface area of ​​≥0.5m 2 / g, height 3.0m, the formaldehyde concentration of the pretreatment pool effluent is controlled below 100mg / L; In step S4, an aeration stirring system is set in the anaerobic water distribution tank, and the aeration intensity is 2 to 4 m 3 / (m 2 h); In step S6, the anaerobic section of the oxidation ditch is provided with a submerged stirring device, and the aerobic section of the oxidation ditch is provided with a microporous aeration device. The oxidation ditch is provided with a water spray system, the dissolved oxygen in the aerobic section of the oxidation ditch is controlled to be 3-5 mg / L, a microporous aerator is provided, and the aeration volume of the aerobic treatment is 5-6 m3 / (m 2 h), the dissolved oxygen in the anaerobic section of the oxidation ditch is controlled to be ≤0.2mg / L, the carbon-nitrogen ratio is (4-5):1, and a submersible stirring device is installed with a power configuration of 6-12 (W / m 3 Pool body); The surface load of the secondary sedimentation tank in step S7 is 0.9m 3 / (m 2 ·h), and a central drive scraper is set therein, the linear speed of the central drive scraper is 2~3m / min, and the rotation speed is 1~3r / h; The amount of polymer coagulant added in step S8 is 0.35-0.45 kg / m 3 The amount of the polymer flocculant added is 0.005-0.01 kg / m 3 Wastewater, polymer coagulants and polymer flocculants use polyaluminium chloride (PAC) coagulants and anionic polyacrylamide (PAM) flocculants. 2 O 3 The content is preferably 26%, and the molecular weight of the polymer flocculant is 12 million.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges a plate opening mechanism on both sides of the frame, which can not only limit the filter press plates after extrusion, but also enable the filter press plates to be moved and opened in sequence when it is needed to be opened later. Combined with the squeezing mechanism on the top of the frame, the sludge cake between two adjacent filter press plates can be quickly dropped off, which is convenient for subsequent unified treatment. Such an arrangement saves a lot of time for opening the filter press plates and makes the filter press plates more stable after subsequent filtration.

[0018] The moving assembly provided in the present invention can drive the extruding assembly to move along its length direction on the top of the frame. The adjusting roller provided on the extruding assembly can synchronously adjust the distance between all the mud pushing plates, so that the mud pushing plates are located between two adjacent filter press plates. The lifting cylinder is then used to make the mud pushing plates squeeze and drop the sludge cakes, which finally facilitates the unified collection of the sludge cakes. A brush can also be installed at the bottom of the mud pushing plates to clean the surface of the filter press plates.

[0019] The pentaerythritol wastewater treatment system provided by the present invention can completely degrade organic matter such as formaldehyde in sewage by microorganisms according to the characteristics of pentaerythritol wastewater. The wastewater treatment system has the advantages of mature technology, stable and reliable operation, small footprint, high removal efficiency, simple operation and maintenance, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a schematic structural diagram of a sludge filter press device according to an embodiment of the present invention; Figure 2 This is an assembly diagram between a plate opening mechanism and a frame in a sludge filter press device according to an embodiment of the present invention; Figure 3 is a schematic structural diagram of a frame in a sludge filter press device according to an embodiment of the present invention; Figure 4 is a schematic structural diagram of a filter press plate in a sludge filter press device according to an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a plate opening mechanism in a sludge filter press device according to an embodiment of the present invention.

[0022] Figure 6 is a schematic structural diagram of a fixed plate in a sludge filter press device according to an embodiment of the present invention; Figure 7 is an assembly diagram between a clamping module and a first slide rail in a sludge filter press device according to an embodiment of the present invention; Figure 8 is a structural schematic diagram of a clamping module in a sludge filter press device according to an embodiment of the present invention; Fig. 9 is a schematic structural diagram of a material squeezing mechanism in a sludge filter press device according to an embodiment of the present invention; Fig.10 This is an assembly diagram of a moving component and a crossbeam in a sludge filter press device according to an embodiment of the present invention; Fig.11 is a schematic structural diagram of a crossbeam in a sludge filter press device according to an embodiment of the present invention; Fig.12 is a schematic structural diagram of a moving component in a sludge filter press device according to an embodiment of the present invention; Fig.13 is a schematic structural diagram of a material extrusion component in a sludge filter press device according to an embodiment of the present invention; Fig.14 2 is a schematic diagram of the bottom structure of a bottom plate in a sludge filter press device according to an embodiment of the present invention; Fig.15 is a schematic diagram of the top structure of a strip plate in a sludge filter press device according to an embodiment of the present invention; Fig.16 is a schematic structural diagram of an adjusting roller in a sludge filter press device according to an embodiment of the present invention; Fig.17 is a structural schematic diagram of a sludge pushing module in a sludge filter press device according to an embodiment of the present invention; Fig.18 is a schematic structural diagram of a U-shaped frame in a sludge filter press device according to an embodiment of the present invention; Fig.19 is a schematic structural diagram of a mud pushing plate in a sludge filter press device according to an embodiment of the present invention; Fig. 20 The present invention is a process flow chart of a pentaerythritol wastewater treatment system according to an embodiment of the present invention.

[0023] Reference numerals: 1. Frame; 2. Leg frame; 3. Filter plate; 4. Hydraulic cylinder; 5. Plate opening mechanism; 6. Extrusion mechanism; 7. Channel steel; 8. First fixed frame; 9. Mandrel; 10. Extrusion plate; 11. Pulley; 12. Second fixed frame; 13. Water outlet; 14. Pillar; 15. Groove; 16. Water hole; 17. Handle; 18. Drainage outlet; 19. Fixed plate; 20. Assembly frame; 21. First strip hole; 22. First slide rail; 23. Clamp module; 24, assembly seat; 25, adjustment cylinder; 26, push-pull block; 27, moving block; 28, first slide seat; 29, connecting block; 291, socket; 292, plug; 30, long hole; 31, assembly nail; 32, horizontal plate; 33, card plate; 34, card slot; 35, first slide hole; 36, limit nail; 37, push-pull rod; 38, limit nut; 39, push-pull cylinder; 40, connecting frame; 41, push-pull plate; 42, second slide hole; 43, crossbeam; 44, third fixed frame; 45, moving assembly; 46, extrusion assembly; 47, rack; 48, vertical plate; 49, top plate; 50, gear; 51, connecting shaft; 52, connecting plate; 53, reducer; 54, driving motor; 55, support frame; 56, lifting cylinder; 57, support plate; 58, support seat; 59, regulator; 60, wire trough; 61, wire harness; 62, strip plate; 63, connecting seat; 64, End plate; 65, bottom plate; 66, adjusting roller; 67, groove; 68, second strip hole; 69, second slide rail; 70, mud pushing module; 71, adjusting motor; 72, driving pulley; 73, driven pulley; 74, transmission belt; 75, U-shaped frame; 76, strip block; 77, convex shaft; 78, second slide seat; 79, lifting block; 80, mud pushing plate; 81, slot; 82, notch; 83, positioning hole; 84, locking hole; 85, strip groove. DETAILED DESCRIPTION

[0024] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments: Example 1: Please refer to Figure 1-4 , a sludge filter press device according to an embodiment of the present invention comprises a frame 1, wherein leg frames 2 are fixedly installed at both ends of the bottom of the frame 1 along its length direction, a filter press plate 3 is arranged inside the frame 1, a hydraulic cylinder 4 is installed at one end of the frame 1, and a plate opening mechanism 5 is fixedly installed at both sides of the frame 1 along its length direction, the plate opening mechanism 5 is connected to the outer side of the filter press plate 3 toward one side of the frame 1, and a material extrusion mechanism 6 is fixedly installed on the top of the frame 1, and the hydraulic cylinder 4 is used to squeeze the filter press plate 3 to squeeze out the water in the sludge, and after the extrusion is completed, the plate opening mechanism 5 can be used to open the filter press plates 3 one by one, and the sludge squeezed by the filter press plates 3 will automatically fall off, and if it does not fall off, the material extrusion mechanism 6 can be started and adjusted to squeeze out the mud cake and residual sludge on the filter press plate 3.

[0025] In order to enable the hydraulic cylinder 4 to effectively squeeze the filter press plate 3, in this embodiment, a first fixing frame 8 is fixedly installed at one end of the frame 1, and the hydraulic cylinder 4 is fixedly installed at the middle of one end surface of the first fixing frame 8 away from the frame 1. The output shaft of the hydraulic cylinder 4 passes through the center of the first fixing frame 8 and is fixedly installed with a push rod 9. The end of the push rod 9 away from the hydraulic cylinder 4 is fixedly installed with an extrusion plate 10. The extrusion plate 10 is arranged inside the frame 1, and the extrusion plate 10 is rotatably installed with a pulley 11 on one side of the plate opening mechanism 5. Channel steels 7 arranged along the length direction of the frame 1 are also fixedly installed on both sides of the top of the frame 1. The pulley 1 1 is slidably arranged on the channel steel 7, a second fixing frame 12 is fixedly installed on one end of the frame 1 away from the hydraulic cylinder 4, a water outlet 13 is provided at the center of one end of the second fixing frame 12 away from the frame 1, grooves 15 are provided at the centers of both end surfaces of the filter press plate 3, a water hole 16 is provided at the center of the filter press plate 3, and the water hole 16 is connected to the two grooves 15 on the two end surfaces of the filter press plate 3. In order to ensure the stable installation of the extrusion mechanism 6, a pillar 14 is also fixedly installed on the top of the first fixing frame 8. In order to effectively discharge the water in the filter press plate 3, a drainage port 18 is provided at the bottom of the outer wall of the filter press plate 3.

[0026] See also Figure 5-8In order to enable the plate opening mechanism 5 to separate the filter press plates 3 squeezed by the squeeze plate 10 one by one, in this embodiment, the plate opening mechanism 5 includes a fixed plate 19 arranged on the outside of the frame 1 and arranged along the length direction of the frame 1. The bottom of the fixed plate 19 facing the frame 1 is fixedly installed on the outside of the frame 1 through an assembly rack 20. The fixed plate 19 is symmetrically provided with a first strip hole 21 arranged along its length direction along the vertical center. The fixed plate 19 is also symmetrically provided with a first slide rail 2 along the first strip hole 21 on the side facing the frame 1. 2. A plurality of snap-in modules 23 are slidably mounted on the first slide rail 22. The snap-in modules 23 snap-in with the handle 17 on the outer wall of the filter press plate 3 on the side facing the frame 1. The fixing plate 19 is fixedly mounted with an assembly seat 24 on the side away from the frame 1. An adjusting cylinder 25 arranged along the length direction of the frame 1 is fixedly mounted on the assembly seat 24. A push-pull block 26 is fixedly mounted on the end of the output shaft of the adjusting cylinder 25. The end of the push-pull block 26 away from the output shaft of the adjusting cylinder 25 passes through the first strip hole 21 and is connected to the snap-in module 23. The push-pull block 26 can be driven to slide and adjust in the first strip hole 21 by the adjusting cylinder 25, and the movement of the push-pull block 26 can drive the snap-in module 23 to slide on the first slide rail 22. When the snap-in module 23 moves, the filter press plate 3 can be driven to move in the frame 1 through the handle 17, and then the filter press plates 3 that are attached to each other are opened, so that the sludge cake after filtration can fall off conveniently, so as to be collected and processed in a centralized manner.

[0027] In order to enable the clamping module 23 to be clamped one by one with the squeezed filter press plates 3 respectively and to be able to open them sequentially, in this embodiment, the clamping module 23 includes a moving block 27, and the moving block 27 is fixedly installed with a first slide seat 28 on the side facing the fixed plate 19, and the first slide seat 28 is slidably installed on the first slide rail 22, and the moving block 27 is fixedly installed with a connecting block 29 on the side away from the fixed plate 19, and the end of the connecting block 29 close to the moving block 27 is provided with a socket 291, and the end of the connecting block 29 away from the moving block 27 is fixedly installed with a first slide seat 28. The body is provided with a plug 292, and a long hole 30 is opened on the connecting block 29 between the socket 291 and the plug 292. The side of the moving block 27 away from the fixed plate 19 is also fixedly installed with an assembly nail 31 arranged in line with the length direction of the long hole 30. When the moving block 27 is installed on the first slide rail 22 through the first slide seat 28, the assembly nail 31 on the moving block 27 is installed in the long hole 30 of the connecting block 29 on the adjacent moving block 27, and the push-pull block 26 is fixedly connected to the moving block 27 closest to the end of the output shaft of the adjusting cylinder 25.

[0028] According to the above structure, when the moving block 27 closest to the end of the output shaft of the adjusting cylinder 25 is driven to move by the adjusting cylinder 25, the moving block 27 will move on the first slide rail 22 through the first slide seat 28, and the assembly nail 31 on the moving block 27 will slide in the long hole 30 on the connecting block 29 on the side of the moving block 27. When the assembly nail 31 slides in the long hole 30 to the end close to the side of its moving direction, the assembly nail 31 can pull the connecting block 29 to move through the long hole 30, and the connecting block 29 Then, the moving blocks 27 are driven to move synchronously, so as to realize the sequential movement of all the moving blocks 27, and finally realize the opening of all the moving blocks 27 one by one. When the moving blocks 27 need to be returned to their original positions, it is only necessary to reversely start the adjusting cylinder 25. At this time, the outermost moving block 27 can drive the assembly nail 31 to slide in the elongated hole 30 of the connecting block 29 on its side again. When the assembly nail 31 moves to the end of the elongated hole 30 again, it can drive the connecting block 29 to move and reset again, so as to realize the reset movement of all the moving blocks 27.

[0029] The cam 33 is provided at the bottom of the top end of the movable block 27, and a clamping plate 33 is fixedly installed at one end of the movable block 27 toward the filter press plate 3. A bayonet groove 34 is provided at the bottom end of the clamping plate 33, and the width of the bayonet groove 34 is greater than the width of the handle 17. When the bayonet groove 34 is clamped on the outside of the handle 17, the movement of the movable block 27 can drive the handle 17 to slide on the top of the channel steel 7 through the transverse plate 32 and the clamping plate 33, thereby realizing the movement and opening adjustment of the filter press plate 3. In order to prevent the subsequent assembly and lifting of the filter press plate 3 from being affected by the clamping plate 33, in the present embodiment, a plurality of grooves are symmetrically provided along the length of the transverse plate 32 on the end away from the clamping plate 33. A first sliding hole 35 is arranged in the degree direction, and a limiting nail 36 is slidably arranged in the first sliding hole 35. The bottom end of the limiting nail 36 is fixedly installed on the moving block 27. The end of the cross plate 32 away from the card plate 33 is fixedly installed with a push-pull rod 37 arranged along its length direction. A push-pull cylinder 39 is fixedly installed on the top of the side of the fixed plate 19 away from the frame 1. A connecting frame 40 is fixedly installed on the output shaft end of the push-pull cylinder 39. A push-pull plate 41 is fixedly installed on the top end of the connecting frame 40. The push-pull plate 41 is arranged along the length direction of the frame 1. A second sliding hole 42 arranged along the length direction is opened on the push-pull plate 41. The end of the push-pull rod 37 away from the cross plate 32 passes through the second sliding hole 42, and limiting nuts 38 arranged on both sides of the push-pull plate 41 are fixedly installed on the push-pull rod 37.

[0030] Start the push-pull cylinder 39, and the output shaft of the push-pull cylinder 39 can drive the push-pull plate 41 to move through the connecting frame 40. When the push-pull plate 41 moves, the push-pull rod 37 can be driven to move through the cooperation of the second sliding hole 42 and the limit nut 38. The movement of the push-pull rod 37 can drive the cross plate 32 to move, and then realize the adjustment of the clamping plate 33 and the clamping slot 34. Moreover, when the clamping plate 33 adjusts the handle 17, the push-pull rod 37 can also slide and adjust in the second sliding hole 42 without affecting the adjustment of the handle 17 by the clamping plate 33.

[0031] Through the above-mentioned scheme of the present invention, the present invention arranges a plate opening mechanism 5 on both sides of the frame 1, and the plate opening mechanism 5 can not only limit the filter press plate 3 after extrusion, but also enable the filter press plate 3 to be moved and opened in sequence when the filter press plate 3 needs to be opened later, and then cooperates with the squeezing mechanism 6 on the top of the frame 1 to quickly fall off the sludge cake between two adjacent filter press plates 3, which is convenient for subsequent unified processing. Such a setting saves a lot of time for opening the filter press plate 3, and also makes the filter press plates 3 more stable with each other after subsequent filtration.

[0032] Example 2: Please refer to Figure 9-12 For the first embodiment, in order to enable the extruding mechanism 6 to effectively discharge the sludge cake between the filter press plates 3 at the top of the frame 1, in this embodiment, the extruding mechanism 6 includes a crossbeam 43 arranged directly above the frame 1, and two crossbeams 43 are provided and arranged along the length direction of the frame 1. The end of the crossbeam 43 is fixedly installed with a third fixing frame 44, and the third fixing frame 44 is fixedly installed on the support 14 and / or the second fixing frame 12. A moving component 45 is installed on the top of the crossbeam 43, and an extruding component 46 arranged above the frame 1 is installed at the bottom of one end of the moving component 45. The moving component 45 includes two vertical plates 48 arranged parallel to each other, and the top ends of the two vertical plates 48 are fixedly connected by a top plate 49, and the outer walls of the vertical plates 48 are rotated near both ends. A gear 50 is dynamically installed, and a rack 47 arranged along its length direction is fixedly installed on the top of the crossbeam 43, the gear 50 is meshed with the rack 47, and the two gears 50 on the side away from the top plate 49 are also fixedly connected by a connecting shaft 51, and a connecting plate 52 is also fixedly installed on the end of the vertical plate 48 away from the top plate 49, and a reducer 53 is fixedly installed on the side of the connecting plate 52 facing the connecting shaft 51, and a driving motor 54 is transmission-connected to the top of the reducer 53, and the reducer 53 and the connecting shaft 51 are transmission-connected, a support frame 55 is fixedly installed on the top of the top plate 49, and a lifting cylinder 56 is fixedly installed on the top of the support frame 55, and the output shaft of the lifting cylinder 56 is arranged through the top plate 49, and the extrusion assembly 46 is fixedly installed on the end of the output shaft of the lifting cylinder 56.

[0033] Start the drive motor 54, and the drive motor 54 can drive the connecting shaft 51 to rotate through the reducer 53. When the connecting shaft 51 rotates, it can drive the gears 50 at both ends to rotate synchronously. When the gear 50 rotates, it will roll on the rack 47, and the rolling of the gear 50 will drive the vertical plate 48 to move synchronously. When the vertical plate 48 moves, it can drive the lifting cylinder 56 to move through the top plate 49 and the support frame 55, and then the lifting cylinder 56 drives the extrusion component 46 at the end of its output shaft to move up and down, and then the extrusion component 46 can squeeze the sludge cake between the filter press plates 3 at different positions.

[0034] In order to ensure that the vertical plate 48 does not affect the control of the drive motor 54 during its movement, in the present embodiment, a support plate 57 is fixedly installed on the outer wall of the vertical plate 48, a support seat 58 is fixedly installed on the top end of the support plate 57, an adjuster 59 is installed on the top end of the support seat 58, the adjuster 59 is electrically connected to the drive motor 54, a wire trough 60 is fixedly installed on the outer side of the crossbeam 43 near the side of the support plate 57, a wire harness 61 is laid in the wire trough 60, and the end of the wire harness 61 is connected to the adjuster 59.

[0035] See also Figure 13-19In order to enable the squeezing assembly 46 to effectively squeeze the sludge cake between the filter press plates 3 after they are opened to each other, in this embodiment, the squeezing assembly 46 includes a horizontally arranged strip plate 62, and the strip plate 62 is arranged along the length direction of the frame 1. A connecting seat 63 is fixedly installed at the top center of the strip plate 62, and the output shaft end of the lifting cylinder 56 is fixedly installed in the connecting seat 63. End plates 64 are fixedly installed at both ends of the bottom of the strip plate 62, and a bottom plate 65 arranged along the length direction of the strip plate 62 is fixedly installed at the bottom of the end plate 64. An adjusting roller 66 is also rotatably installed between the two end plates 64. A plurality of grooves 67 are symmetrically opened along the center of the adjusting roller 66, and the grooves 67 are radially symmetrically opened on the outer wall of the adjusting roller 66. A second strip hole 68 arranged along its length direction is symmetrically opened along the center of the bottom plate 65. A second slide rail 69 symmetrically arranged along its length direction is fixedly installed on the outer side and the center of the part, and a mud pushing module 70 is slidably installed on the second slide rail 69. The top of the mud pushing module 70 passes through the second strip hole 68 and is inserted in the groove 67. When the adjusting roller 66 rotates, the top of the mud pushing module 70 can be driven to move through the groove 67, and then the mud pushing module 70 can be driven to move on the second slide rail 69. When the mud pushing modules 70 are unfolded to each other and located between the two filter press plates 3, the strip plate 62 is driven down by the lifting cylinder 56 until the mud pushing module 70 contacts the sludge cake between the filter press plates 3, and finally the effect of squeezing out the sludge cake is achieved. If there is a misalignment between the unfolded mud pushing module 70 and the filter press plate 3, the position of the vertical plate 48 can be adjusted forward and backward by controlling the regulator 59, so as to achieve the position adjustment between the mud pushing module 70 and the filter press plate 3.

[0036] In order to automate the expansion adjustment of the mud pushing module 70, in the present embodiment, the end plate 64 away from the end of the connecting shaft 51 is arranged on the top of the protruding strip plate 62, and the end plate 64 away from the end of the connecting shaft 51 is fixedly installed with an adjusting motor 71 on one side facing the connecting seat 63, and the output shaft end of the adjusting motor 71 passes through the end plate 64 and is fixedly installed with a driving pulley 72, and the end of the adjusting roller 66 away from the connecting shaft 51 passes through the end plate 64 and is fixedly installed with a driven pulley 73, and the driving pulley 72 and the driven pulley 73 are connected by a transmission belt 74.

[0037] In order to enable the mud pushing module 70 to effectively squeeze out the sludge cake, in this embodiment, the mud pushing module 70 includes a U-shaped frame 75, the top end of the U-shaped frame 75 is fixedly installed with a strip block 76, the top center of the strip block 76 is rotatably installed with a convex shaft 77, the top two ends of the U-shaped frame 75 pass through two second strip holes 68, the strip block 76 is arranged between the adjusting roller 66 and the bottom plate 65, and the second slide seat 78 is fixedly installed at the center top or the bottom of the outer wall of the U-shaped frame 75. The second slide seat 78 located at the center top of the U-shaped frame 75 is slidably arranged on the second slide rail 69 located between the two second strip holes 68, and the second slide seat 78 located at the bottom of the outer wall of the U-shaped frame 75 is slidably arranged on the second slide rails 69 located on both sides of the bottom of the bottom plate 65. The bottom end of the U-shaped frame 75 is fixedly installed with a lifting block 79, and the bottom of the lifting block 79 is fixedly installed with a mud pushing plate 80. When the strip plate 62 is driven to rise and fall, the U-shaped frame 75 can be driven to rise and fall synchronously through the end plate 64 and the bottom plate 65. At this time, the U-shaped frame 75 drives the mud pusher plate 80 to descend through the lifting block 79, and the mud pusher plate 80 can be used to push the sludge cake between the two filter press plates 3, and finally the sludge cake falls.

[0038] In order to stably install the mud pusher 80 on the lifting block 79, in this embodiment, a slot 81 is provided at the top center of the mud pusher 80, and the bottom end of the lifting block 79 is inserted into the slot 81. A notch 82 is also provided symmetrically along the center of the mud pusher 80. A positioning hole 83 is provided on a side wall of the notch 82 facing the slot 81. The positioning hole 83 is connected to the notch 82. A locking hole 84 is provided at the bottom of the lifting block 79. When the lifting block 79 is inserted into the slot 81, the positioning hole 83 and the locking hole 84 are arranged in a colinear manner. A strip groove 85 is also provided at the bottom of the mud pusher 80 along its length direction. A positioning rod is inserted into the positioning hole 83 to realize the installation of the mud pusher 80. If a brush is installed in the strip groove 85, the filter press plate 3 can be cleaned by the brush by the lifting adjustment of the lifting cylinder 56.

[0039] Through the above scheme of the present invention, the moving component 45 provided in the present invention can drive the extrusion component 46 to move along its length direction on the top of the frame 1, and the adjusting roller 66 provided on the extrusion component 46 can synchronously adjust the distance between all the mud pushers 80, so that the mud pushers 80 are located between two adjacent filter press plates 3, and then the lifting cylinder 56 is used to make the mud pushers 80 squeeze and drop the sludge cake, finally facilitating the unified collection of the sludge cake, and a brush can be installed at the bottom of the mud pushers 80 to clean the surface of the filter press plates 3.

[0040] Example 3: Please refer to Fig. 20The present invention also provides a sewage treatment system for treating pentaerythritol wastewater by using the above-mentioned sludge filter press device. The present invention first analyzes the types, concentrations and characteristics of pollutants in the pentaerythritol wastewater. The pentaerythritol wastewater has a COD of about 3000-3700 mg / L and formaldehyde of about 500-750 mg / L. It has the characteristics of high COD concentration, high formaldehyde content, high toxicity and inhibition of microbial degradation. It belongs to high-concentration toxic and harmful wastewater. A new set of 2000m 3 / d sewage treatment facilities, which completely degrade organic matter such as formaldehyde through microorganisms.

[0041] The pentaerythritol wastewater treatment system mainly comprises the following steps: S1: First, the pentaerythritol wastewater is divided into high-concentration wastewater, low-concentration wastewater, accident emergency wastewater, initial rainwater, and domestic sewage according to different sources. Each sewage is collected separately in its own collection pool. This measure can realize the flexible allocation of wastewater and facilitate subsequent treatment; S2: Mix and regulate high-concentration wastewater, low-concentration wastewater, initial rainwater, and accident emergency wastewater in a comprehensive wastewater regulating tank, and set up an aeration and stirring system in the comprehensive wastewater regulating tank to mix them uniformly; S3: Pump the wastewater from the comprehensive wastewater regulating pool into the pretreatment biochemical pool, adjust the nutrients (nitrogen, phosphorus, etc.) of the pentaerythritol wastewater in the pretreatment biochemical pool, and reduce the formaldehyde content entering the UASB anaerobic reactor. Relying on the action of mechanical force (submersible flow propeller), the mass transfer effect of the pretreatment is enhanced, and formaldehyde-resistant fixed fillers are set in the pool. Under the multiple effects of water dilution, microbial adsorption and degradation, and physical adsorption of fillers, the formaldehyde concentration in the wastewater is reduced to an appropriate value; S4: The effluent from the pretreatment tank enters the anaerobic water distribution tank, where it is mixed with domestic sewage and then regulated again before entering the next level of treatment unit. An aeration and stirring system is set up in the water distribution tank to homogenize the water quality. S5: Pump the effluent from the anaerobic water distribution tank into the UASB anaerobic reactor to significantly remove COD from the water in this system; S6: The effluent from the UASB anaerobic reactor enters the oxidation ditch, which includes an anaerobic section, an aerobic section, and a secondary sedimentation tank. Most of the sludge precipitated in the secondary sedimentation tank is returned to the anaerobic section to ensure a high sludge concentration in the anaerobic section. After the wastewater enters the anaerobic section of the oxidation ditch, the facultative microorganisms in the ditch can decompose and break the long-chain macromolecular organic matter that is difficult to degrade in the wastewater, and divide it into easily degradable small molecular substances, which can improve the biodegradability of the wastewater and facilitate the subsequent biochemical reactions in the aerobic section; S7: The effluent from the aerobic section of the oxidation ditch enters the secondary sedimentation tank, where the aerobic sludge is separated from the mud and water, and the effluent is clarified to achieve the purpose of removing SS. Most of the sedimentation sludge is returned to the anaerobic section of the oxidation ditch through the sludge return pump.

[0042] S8: The supernatant from the secondary sedimentation tank enters the coagulation reaction sedimentation tank, controls the pH value within the range of 7-8, and adds polymer coagulants and polymer flocculants. The function of polymer coagulants and polymer flocculants is to cause colloids, particulate matter, calcium precipitates, etc. in the wastewater to undergo coagulation reactions through purification mechanisms such as electrical neutralization, adsorption bridging, net capture, and co-precipitation, so that pollutants settle as sludge and are separated from mud and water in the subsequent inclined plate sedimentation tank. The coagulation reaction sedimentation tank uses honeycomb fillers (i.e. inclined tube sedimentation) and the principle of shallow sedimentation to shorten the sedimentation distance of particulate matter, thereby shortening the sedimentation time and increasing the sedimentation area of ​​the sedimentation tank, greatly improving the sedimentation efficiency of the sedimentation tank; S9: The effluent from the coagulation sedimentation tank is temporarily stored in the clean water tank. If the water in the clean water tank does not meet the standards, it will be returned to the accident emergency tank for further treatment. If it meets the standards, it will be discharged or reused. S10: The residual sludge from each biochemical pool and the physicochemical sludge from the coagulation reaction are discharged into the biochemical sludge thickening pool and the physicochemical sludge thickening pool for temporary storage. The sludge from the biochemical sludge thickening pool and the physicochemical sludge thickening pool are pumped into the filter press room for filtration and dehydration. The mud cake is outsourced for disposal. The physicochemical sludge and the biochemical sludge are treated separately, which greatly reduces the cost of sludge disposal. The filtrate is returned to the front end of the system for further treatment.

[0043] In step S1, high-concentration wastewater, low-concentration wastewater, accident emergency wastewater, initial rainwater, domestic sewage and other sewage are collected separately in respective collection pools and flexibly allocated.

[0044] In step S2, an aeration stirring system is set in the comprehensive wastewater regulating tank, and the aeration intensity is 2 to 4 m 3 / (m 2 h).

[0045] In step S3, a submersible mixer is set in the pretreatment tank to enhance the mass transfer effect of the pretreatment. The power configuration is 6 (W / m 3 The pretreatment tank is equipped with formaldehyde-resistant fixed filler with a specific surface area of ​​≥0.5m 2 / g, height 3.0m, and the formaldehyde concentration in the effluent from the pretreatment pool is controlled below 100mg / L.

[0046] In step S4, an aeration stirring system is set in the anaerobic water distribution tank, and the aeration intensity is 2 to 4 m 3 / (m 2 h).

[0047] In step S5, a UASB reactor with a larger volume is used to ensure that the COD of the anaerobic effluent is sufficiently low and that it is safe, stable and reliable. The UASB reactor is operated at a medium temperature.

[0048] In step S6, the anaerobic section of the oxidation ditch is provided with a submerged agitator, the aerobic section of the oxidation ditch is provided with a microporous aeration device, and the oxidation ditch is provided with a water spray system to facilitate the common foam problem of the aeration tank. The dissolved oxygen in the aerobic section of the oxidation ditch is controlled to 3-5 mg / L, and a microporous aerator is provided. The aeration volume of the aerobic treatment is 5-6 m 3 / (m 2 h), the dissolved oxygen in the anaerobic section of the oxidation ditch is controlled to be ≤0.2mg / L, the carbon-nitrogen ratio is (4-5):1, and a submersible stirring device is installed with a power configuration of 6-12 (W / m 3 pool body).

[0049] In step S7, the effluent from the oxidation ditch enters the secondary sedimentation tank, where the aerobic sludge is separated from the water and the effluent is clarified to achieve the purpose of removing SS. The surface load of the secondary sedimentation tank is 0.9m 3 / (m 2 ·h); the linear speed of the selected central drive scraper is 2~3m / min, and the rotation speed is 1~3r / h. The scraper adopts a central drive scraper, and is equipped with anti-torque accessories and an automatic lifting device to prevent operation failures caused by excessive torque. When encountering obstacles, the scraper can be automatically lifted. The precipitated sludge in the secondary sedimentation tank is returned to the anaerobic section and aerobic section of the oxidation ditch at a certain return ratio to replenish the lost bacteria; the return ratio is 100%, and it is returned to the anaerobic treatment and aerobic treatment processes. Among them, most of the sludge is returned to the anaerobic section. The sludge pump in the secondary sedimentation tank is equipped with backwashing facilities to prevent sludge scaling from causing poor sludge discharge in the pipeline.

[0050] In step S8, the amount of polymer coagulant added is 0.35-0.45 kg / m 3 The amount of the polymer flocculant added is 0.005-0.01 kg / m 3 For wastewater, polymer coagulants and polymer flocculants are preferably polyaluminium chloride (PAC) coagulants and anionic polyacrylamide (PAM) flocculants. 2 O 3 The content is preferably 26%, and the molecular weight of the polymer flocculant is preferably 12 million.

[0051] In step S9, the water outlet lifting pump and the liquid level of the clean water tank are interlocked and controlled by the central control to achieve automatic operation.

[0052] Among them, the outlets of the high-concentration wastewater and low-concentration wastewater lifting pumps, the outlets of the accident emergency wastewater lifting pumps, and the outlets of the initial rainwater lifting pumps are connected to the water inlet of the comprehensive wastewater regulating tank, the outlet of the comprehensive wastewater lifting pump is connected to the water inlet of the pretreatment tank, the outlet of the pretreatment tank and the outlet of the domestic sewage lifting pump are connected to the water inlet of the anaerobic water distribution tank, the outlet of the anaerobic water distribution tank outlet lifting pump is connected to the water inlet of the UASB anaerobic reactor, the outlet of the UASB anaerobic reactor is connected to the water inlet of the anaerobic section of the oxidation ditch, the outlet of the aerobic section of the oxidation ditch is connected to the water inlet of the secondary sedimentation tank, the outlet of the secondary sedimentation tank is connected to the water inlet of the coagulation reaction sedimentation tank, the outlet of the coagulation reaction sedimentation tank is connected to the water inlet of the clear water tank, the outlet of the clear water tank is connected to the enterprise discharge or reuse pipe port and the water inlet of the accident emergency tank, and the sludge pump outlets of the secondary sedimentation tank and the coagulation sedimentation tank are connected to the sludge inlets of the biochemical sludge thickening tank and the physicochemical sludge thickening tank respectively.

[0053] Through the above scheme of the present invention, the present invention can completely degrade organic matter such as formaldehyde in sewage through microorganisms according to the characteristics of pentaerythritol wastewater. The wastewater treatment system has the advantages of mature technology, stable and reliable operation, small footprint, high removal efficiency, simple operation and maintenance, etc.

[0054] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge filter press device, comprising a frame (1), characterized in that: The bottom of the frame (1) is fixedly provided with leg frames (2) at both ends along the length direction thereof, a filter press plate (3) is provided inside the frame (1), a hydraulic cylinder (4) is installed at one end of the frame (1), a plate opening mechanism (5) is fixedly installed at both sides along the length direction of the frame (1), the plate opening mechanism (5) is connected to the outer side of the filter press plate (3) on one side facing the frame (1), and a material extrusion mechanism (6) is also fixedly installed on the top of the frame (1); The plate opening mechanism (5) comprises a fixing plate (19) arranged outside the frame (1) and arranged along the length direction of the frame (1); the fixing plate (19) is fixedly mounted on the outside of the frame (1) at the bottom of a side facing the frame (1) through an assembly frame (20); a first strip hole (21) arranged along its length direction is symmetrically opened along the vertical center of the fixing plate (19); a first slide rail (22) is symmetrically mounted along the first strip hole (21) on the side facing the frame (1); a plurality of snap-on modules (23) are slidably mounted on the first slide rail (22); and the filter press A handle (17) is fixedly mounted on the outer wall of the plate (3); the clamping module (23) is clamped with the handle (17) on the side facing the frame (1); an assembly seat (24) is fixedly mounted on the side of the fixed plate (19) away from the frame (1); an adjusting cylinder (25) arranged along the length direction of the frame (1) is fixedly mounted on the assembly seat (24); a push-pull block (26) is fixedly mounted on the end of the output shaft of the adjusting cylinder (25); an end of the push-pull block (26) away from the output shaft of the adjusting cylinder (25) passes through the first strip hole (21) and is connected to the clamping module (23); The card connection module (23) comprises a moving block (27), a first slide seat (28) being fixedly mounted on a side of the moving block (27) facing the fixed plate (19), the first slide seat (28) being slidably mounted on a first slide rail (22), a connecting block (29) being fixedly mounted on a side of the moving block (27) away from the fixed plate (19), a socket (291) being provided at one end of the connecting block (29) close to the moving block (27), a plug (292) being integrally provided at one end of the connecting block (29) away from the moving block (27), and a plug (292) being provided on the connecting block (29) at the socket (291). A long hole (30) is provided between the movable block (27) and the plug (291), and a mounting pin (31) arranged in line with the length direction of the long hole (30) is fixedly installed on a side of the movable block (27) away from the fixed plate (19). When the movable block (27) is installed on the first slide rail (22) through the first slide seat (28), the mounting pin (31) on the movable block (27) is installed in the long hole (30) of the connecting block (29) on the adjacent movable block (27), and the push-pull block (26) is fixedly connected to the movable block (27) closest to the end of the output shaft of the regulating cylinder (25).

2. A sludge filter press device according to claim 1, characterized in that: A first fixing frame (8) is fixedly mounted on one end of the frame (1); the hydraulic cylinder (4) is fixedly mounted on the middle of an end surface of the first fixing frame (8) away from the frame (1); an output shaft of the hydraulic cylinder (4) passes through the center of the first fixing frame (8) and is fixedly mounted with a push rod (9); an end of the push rod (9) away from the hydraulic cylinder (4) is fixedly mounted with an extrusion plate (10); the extrusion plate (10) is arranged inside the frame (1); a pulley (11) is rotatably mounted on one side of the extrusion plate (10) facing the plate opening mechanism (5); channel steels (7) arranged along the length direction of the frame (1) are also fixedly mounted on both sides of the top of the frame (1); The pulley (11) is slidably mounted on the channel steel (7); a second fixed frame (12) is fixedly mounted on one end of the frame (1) away from the hydraulic cylinder (4); a water outlet (13) is provided at the center of one end of the second fixed frame (12) away from the frame (1); grooves (15) are provided at the centers of both end surfaces of the filter press plate (3); a water through hole (16) is provided at the center of the filter press plate (3); the water through hole (16) is connected to the two grooves (15) on the two end surfaces of the filter press plate (3); a support (14) is also fixedly mounted on the top of the first fixed frame (8); and a water outlet (18) is provided at the bottom of the outer wall of the filter press plate (3).

3. A sludge filter press device according to claim 2, characterized in that: A transverse plate (32) is provided at the top end of the movable block (27); a clamping plate (33) is fixedly mounted at the bottom of one end of the transverse plate (32) facing the filter press plate (3); a clamping groove (34) is provided at the bottom end of the clamping plate (33); the width of the clamping groove (34) is greater than the width of the handle (17); a first sliding hole (35) is symmetrically provided along the length direction of the transverse plate (32) at one end of the transverse plate (32) away from the clamping plate (33); a limiting pin (36) is slidably provided in the first sliding hole (35); the bottom end of the limiting pin (36) is fixedly mounted on the movable block (27); and a first sliding hole (35) is symmetrically provided along the length direction of the transverse plate (32) at one end of the transverse plate (32) away from the clamping plate (33). A push-pull rod (37) is arranged along its length direction; a push-pull cylinder (39) is fixedly installed on the top of a side of the fixed plate (19) away from the frame (1); a connecting frame (40) is fixedly installed on the output shaft end of the push-pull cylinder (39); a push-pull plate (41) is fixedly installed on the top end of the connecting frame (40); the push-pull plate (41) is arranged along the length direction of the frame (1); a second sliding hole (42) is opened on the push-pull plate (41) and arranged along its length direction; one end of the push-pull rod (37) away from the cross plate (32) passes through the second sliding hole (42); and limit nuts (38) arranged on both sides of the push-pull plate (41) are fixedly installed on the push-pull rod (37).

4. A sludge filter press device according to claim 3, characterized in that: The extrusion mechanism (6) comprises a crossbeam (43) arranged directly above the frame (1), two crossbeams (43) are provided and arranged along the length direction of the frame (1), a third fixing frame (44) is fixedly mounted on the end of the crossbeam (43), and the third fixing frame (44) is fixedly mounted on the support (14) and / or the second fixing frame (12), a moving assembly (45) is mounted on the top of the crossbeam (43), and an extrusion assembly (46) arranged above the frame (1) is mounted on the bottom of one end of the moving assembly (45), and the moving assembly (45) comprises two vertical plates (48) arranged parallel to each other, the top ends of the two vertical plates (48) are fixedly connected by a top plate (49), and gears (50) are rotatably mounted on the outer side walls of the vertical plates (48) near both ends, and a gear (50) is fixedly mounted on the top of the crossbeam (43) along its length direction. A rack (47) is provided, the gear (50) meshes with the rack (47), the two gears (50) on the side away from the top plate (49) are also fixedly connected via a connecting shaft (51), the end of the vertical plate (48) away from the top plate (49) is also fixedly installed with a connecting plate (52), the side of the connecting plate (52) facing the connecting shaft (51) is fixedly installed with a reducer (53), the top of the reducer (53) is transmission-connected with a driving motor (54), the reducer (53) and the connecting shaft (51) are transmission-connected, the top of the top plate (49) is fixedly installed with a support frame (55), the top of the support frame (55) is fixedly installed with a lifting cylinder (56), the output shaft of the lifting cylinder (56) is arranged through the top plate (49), and the extrusion assembly (46) is fixedly installed at the end of the output shaft of the lifting cylinder (56).

5. A sludge filter press device according to claim 4, characterized in that: A support plate (57) is fixedly mounted on the outer wall of the vertical plate (48); a support seat (58) is fixedly mounted on the top end of the support plate (57); an adjuster (59) is mounted on the top end of the support seat (58); the adjuster (59) is electrically connected to the drive motor (54); a wire trough (60) is fixedly mounted on the outer side of the crossbeam (43) near one side of the support plate (57); a wire harness (61) is laid in the wire trough (60); and an end of the wire harness (61) is connected to the adjuster (59).

6. A sludge filter press device according to claim 5, characterized in that: The extrusion assembly (46) comprises a horizontally arranged strip plate (62), the strip plate (62) being arranged along the length direction of the frame (1), a connecting seat (63) being fixedly installed at the top center of the strip plate (62), the output shaft end of the lifting cylinder (56) being fixedly installed in the connecting seat (63), end plates (64) being fixedly installed at both ends of the bottom of the strip plate (62), a bottom plate (65) being fixedly installed along the length direction of the strip plate (62) at the bottom of the end plate (64), an adjusting roller (66) being rotatably installed between the two end plates (64), a plurality of grooves (67) being symmetrically opened along the center of the adjusting roller (66), the grooves (67) being radially symmetrically opened on the outer wall of the adjusting roller (66), a second strip hole (68) being symmetrically opened along the center of the bottom plate (65) being arranged along its length direction, the bottom plate (65) A second slide rail (69) symmetrically arranged along the length direction is fixedly installed on the outer side and center of the bottom, and a mud pushing module (70) is slidably installed on the second slide rail (69). The top of the mud pushing module (70) passes through the second strip hole (68) and is inserted into the groove (67). The end plate (64) away from the end of the connecting shaft (51) protrudes from the top of the strip plate (62), and an adjusting motor (71) is fixedly installed on the side of the end plate (64) away from the end of the connecting shaft (51) facing the connecting seat (63). The output shaft end of the adjusting motor (71) passes through the end plate (64) and is fixedly installed with a driving pulley (72). The end of the adjusting roller (66) away from the connecting shaft (51) passes through the end plate (64) and is fixedly installed with a driven pulley (73). The driving pulley (72) and the driven pulley (73) are connected to each other through a transmission belt (74).

7. A sludge filter press device according to claim 6, characterized in that: The mud pushing module (70) comprises a U-shaped frame (75), a strip block (76) is fixedly mounted on the top end of the U-shaped frame (75), a convex shaft (77) is rotatably mounted on the top center of the strip block (76), two second strip holes (68) are penetrated at both ends of the top of the U-shaped frame (75), the strip block (76) is arranged between the adjusting roller (66) and the bottom plate (65), and a second slide seat (77) is fixedly mounted on the center top or the bottom of the outer wall of the U-shaped frame (75). 78), a second slide seat (78) located at the top center of the U-shaped frame (75) is slidably mounted on a second slide rail (69) located between the two second strip holes (68), a second slide seat (78) located at the bottom of the outer wall of the U-shaped frame (75) is slidably mounted on second slide rails (69) located on both sides of the bottom of the bottom plate (65), a lifting block (79) is fixedly mounted at the bottom end of the U-shaped frame (75), and a mud pusher (80) is fixedly mounted at the bottom of the lifting block (79).

8. A sludge filter press device according to claim 7, characterized in that: A slot (81) is provided at the center of the top of the mud pushing plate (80), and the bottom end of the lifting block (79) is inserted into the slot (81). A notch (82) is also provided symmetrically along the center of the top of the mud pushing plate (80), and a positioning hole (83) is provided on a side wall of the notch (82) facing the slot (81), and the positioning hole (83) is connected to the notch (82). A locking hole (84) is provided at the bottom of the lifting block (79), and a strip groove (85) is also provided at the bottom of the mud pushing plate (80) along its length direction.

9. A pentaerythritol wastewater treatment system using the sludge filter press device as claimed in claim 8, characterized in that: The main steps are as follows: S1: First, the pentaerythritol wastewater is divided into high-concentration wastewater, low-concentration wastewater, accident emergency wastewater, initial rainwater, and domestic sewage according to different sources, and each sewage is collected separately in its own collection pool; S2: Mix and regulate high-concentration wastewater, low-concentration wastewater, initial rainwater, and accident emergency wastewater in a comprehensive wastewater regulating tank, and set up an aeration and stirring system in the comprehensive wastewater regulating tank; S3: Pump the wastewater from the comprehensive wastewater regulating pool into the pretreatment biochemical pool, adjust the nutrients of the pentaerythritol wastewater in the pretreatment biochemical pool, and reduce the formaldehyde content entering the UASB anaerobic reactor; S4: The effluent from the pretreatment tank enters the anaerobic water distribution tank, where it is mixed with domestic sewage and then regulated again before entering the next level of treatment unit. An aeration and stirring system is set up in the water distribution tank to homogenize the water quality. S5: Pump the effluent from the anaerobic water distribution tank into the UASB anaerobic reactor; S6: The effluent from the UASB anaerobic reactor enters the oxidation ditch, which includes an anaerobic section, an aerobic section, and a secondary sedimentation tank; S7: The effluent from the aerobic section of the oxidation ditch enters the secondary sedimentation tank, where the aerobic sludge is separated from the mud and water, and the effluent is clarified. The precipitated sludge is returned to the anaerobic section of the oxidation ditch through the sludge return pump; S8: The supernatant of the secondary sedimentation tank is introduced into the coagulation reaction sedimentation tank, the pH is controlled within the range of 7-8, and a polymer coagulant and a polymer flocculant are added; S9: The effluent from the coagulation and sedimentation tank is temporarily stored in the clean water tank. If the water in the clean water tank does not meet the standards, it will be returned to the accident emergency tank for further treatment. If it meets the standards, it will be discharged or reused. S10: The residual sludge from each biochemical pool and the physicochemical sludge from the coagulation reaction sedimentation are respectively discharged into the biochemical sludge thickening pool and the physicochemical sludge thickening pool for temporary storage. The sludge from the biochemical sludge thickening pool and the physicochemical sludge thickening pool are respectively pumped into the filter press room for filtration and dehydration.

10. The pentaerythritol wastewater treatment system according to claim 9, characterized in that: In step S2, an aeration stirring system is set in the comprehensive wastewater regulating tank, and the aeration intensity is 2 to 4 m 3 / (m 2 h); In step S3, a submersible mixer is set in the pretreatment tank, and the power configuration is 6 (W / m 3 The pretreatment tank is provided with formaldehyde-resistant fixed filler with a specific surface area of ​​≥0.5m 2 / g, height 3.0m, the formaldehyde concentration of the pretreatment pool effluent is controlled below 100mg / L; In step S4, an aeration stirring system is set in the anaerobic water distribution tank, and the aeration intensity is 2 to 4 m 3 / (m 2 h); In step S6, the anaerobic section of the oxidation ditch is provided with a submerged stirring device, and the aerobic section of the oxidation ditch is provided with a microporous aeration device. The oxidation ditch is provided with a water spray system, the dissolved oxygen in the aerobic section of the oxidation ditch is controlled to be 3-5 mg / L, a microporous aerator is provided, and the aeration volume of the aerobic treatment is 5-6 m 3 / (m 2 h), the dissolved oxygen in the anaerobic section of the oxidation ditch is controlled to be ≤0.2mg / L, the carbon-nitrogen ratio is (4-5):1, and a submersible stirring device is installed with a power configuration of 6-12 (W / m 3 Pool body); The surface load of the secondary sedimentation tank in step S7 is 0.9m 3 / (m 2 ·h), and a central drive scraper is set therein, the linear speed of the central drive scraper is 2~3m / min, and the rotation speed is 1~3r / h; The amount of polymer coagulant added in step S8 is 0.35-0.45 kg / m 3 The amount of the polymer flocculant added is 0.005-0.01 kg / m 3 For wastewater, polymer coagulants and polymer flocculants use polyaluminium chloride (PAC) coagulant and anionic polyacrylamide (PAM) flocculant. The Al2O3 content in the polymer coagulant is preferably 26%, and the molecular weight of the polymer flocculant is 12 million.

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