Filter press and mechanical deep processing production wastewater treatment system adopting same

Abstract

The invention relates to the field of sewage treatment, and mainly discloses a filter press and a mechanical deep processing production wastewater treatment system adopting the filter press. Comprising a wastewater tank for collecting wastewater of a special machining plant, a sedimentation tank for collecting wastewater of a comprehensive machining plant, a solid-liquid separation device, an oil separation regulating tank, integrated combined air flotation equipment, an anaerobic water distribution tank, a CSTR (continuous stirred-tank reactor) efficient anaerobic reactor, an anoxic tank, a contact oxidation tank, integrated advanced treatment equipment, a sludge concentration tank and a sludge dewatering machine, the invention discloses an indoor wastewater collection trench of a sewage treatment station. According to the present invention, with the pertinence and the unique design of the wastewater treatment, the sewage treatment achieves the optimal state, the biological sludge generation amount can be substantially reduced, the highly automatic control can be achieved, the management is simple, the wastewater treatment is efficient, the equipment structure is compact, the occupied area is small, and the operation is stable and meets the standard; meanwhile, the introduction of the system can greatly improve the treatment capacity of deep processing wastewater of the machine.

Description

Technical Field

[0001] The invention relates to the field of wastewater treatment, in particular to a filter press and a mechanical deep processing production wastewater treatment system using the device. Background Art

[0002] In the modern mechanical processing industry, especially in the field of mechanical deep processing, wastewater treatment is a vital link. The wastewater from mechanical deep processing mainly comes from processes such as parts cleaning, cooling lubricant replacement, electroplating, and painting. These wastewaters contain a variety of pollutants such as oils, emulsions, heavy metal ions, and surfactants, and have the characteristics of high chemical oxygen demand (COD), high chroma, complex components, and low biodegradability. If these wastewaters are discharged directly without proper treatment, they will pose a serious threat to the environment and human health.

[0003] The mechanical deep processing wastewater has the above characteristics, which makes it difficult to treat, specifically:

[0004] There are many types of pollutants: the wastewater contains emulsions, cutting fluids, graphite wastewater and other pollutants.

[0005] Many toxic and harmful substances: The wastewater contains toxic and harmful substances such as heavy metal ions and organic solvents.

[0006] Difficulty in treatment: Due to the large variety and high concentration of pollutants, it is difficult to treat.

[0007] Large fluctuations in pH value: Different processes use chemicals with different properties, and the pH value of wastewater may be acidic, alkaline or neutral, which requires appropriate adjustment.

[0008] Difficulty in separating oil and water: Oil in cutting fluid and cleaning wastewater usually exists in an emulsified state, making it difficult to separate oil and water.

[0009] At the same time, dehydration equipment is also needed for the subsequent dehydration treatment of the sludge in the sludge pool. Most general dehydration equipment uses plate and frame filter presses. This type of filter press uses external force to squeeze the plate and frame filter plate to squeeze the water in the sludge in the early stage. After the extrusion is completed, the plate is opened by external force and the sludge is collected. However, traditional plate opening and pressing are often operated one by one, and the efficiency is relatively low.

[0010] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0011] The object of the present invention is to provide a filter press and a mechanical deep processing production wastewater treatment system using the device to solve the problems raised in the above background technology.

[0012] To achieve the above object, the present invention provides the following technical solutions:

[0013] A filter press, comprising a frame, a filter press mechanism is installed on the top of the frame, a mud receiving vehicle is provided inside the frame and is located directly below the filter press mechanism, a drainage assembly is also installed on the same end of the frame and the filter press mechanism, an auxiliary mechanism is provided directly above the filter press mechanism, the filter press mechanism comprises a first baffle and a second baffle fixedly installed at both ends of the top of the frame, a hydraulic cylinder is fixedly installed at the center of an end face of the first baffle away from the second baffle, an extrusion shaft is fixedly connected to the output end of the hydraulic cylinder, the extrusion shaft passes through the first baffle and is fixedly installed with an extrusion plate, a filter press plate is provided between the extrusion plate and the second baffle, a crossbeam is fixedly installed on the side between the first baffle and the second baffle, a slide rail is fixedly installed on the top of the crossbeam, and a slide block is fixedly installed on the outer side wall of the filter press plate;

[0014] The auxiliary mechanism includes a horizontal plate arranged directly above the frame, end plates are fixedly installed at both ends of the bottom of the horizontal plate, a cross bar is fixedly installed at the bottom near both sides between the two end plates, and an auxiliary component is also provided between the two end plates, the auxiliary component is slidably connected to the cross bar, the auxiliary component includes a plurality of adjustment blocks arranged side by side, the tops of the adjustment blocks are connected by a folding frame, a sliding sleeve is symmetrically installed through the center of the upper edge of the adjustment block, the sliding sleeve is slidably arranged on the outside of the cross bar, extension handles are fixedly installed at both ends of the adjustment block, a nozzle is also installed at the bottom of the adjustment block, a through hole is opened in the middle of the adjustment block, a water pipe is passed through the through hole, and the nozzle is connected to the water pipe.

[0015] Furthermore, a lower hopper is fixedly installed on the inner top of the frame, a mud outlet is opened at the bottom of the lower hopper, lifting cylinders are fixedly installed on the tops of the first baffle and the second baffle near both ends, a lifting plate is fixedly installed on the top ends of the lifting cylinders, and a lifting plate is fixedly installed on the bottom ends of the end plates, a filter plate is provided inside the filter press plate, and the mud receiving vehicle includes a receiving box, rollers are installed at the four corners of the bottom of the receiving box, a push handle is also fixedly installed on the top of the outer wall of one side of the receiving box, and a card frame is also fixedly welded on the outer wall of the receiving box.

[0016] Furthermore, the drainage assembly includes a first drain port opened on the second baffle near the four corners, a first drain pipe is fixedly installed on the end of the first drain port, a first water outlet pipe is fixedly installed on the end of the first drain pipe away from the first drain port, a valve is also installed at the connection between the first water outlet pipe and the first drain pipe, a second drain port is opened in the middle of the second baffle, a second drain pipe is fixedly installed on the end of the second drain port, a negative pressure pump arranged near the second baffle is also fixedly installed inside the frame, the input end of the negative pressure pump is connected to the second drain pipe, the output end of the negative pressure pump is fixedly connected to the second water outlet pipe, and a pressure gauge is also connected to the second drain pipe.

[0017] Furthermore, the folding frame includes a plurality of hinged plates hinged to each other in the middle parts, the middle parts of the hinged plates are hinged to each other through a hinge shaft, the bottom of the hinge shaft is fixedly mounted on the adjusting block, an inner hole is provided on the end plate arranged near the second baffle, a locking shaft is fixedly mounted inside the inner hole, a connecting plate is also connected to the top end of the hinge shaft arranged near the inner hole, and an end of the connecting plate away from the hinge shaft is fixedly connected to the locking shaft.

[0018] Furthermore, a strip hole is provided on the horizontal plate, and fixed blocks are fixedly installed at the top of the horizontal plate at both ends of the strip hole, a screw rod is rotatably installed between the two fixed blocks, a screw sleeve is screwed on the outside of the screw rod, a vertical plate is fixedly installed on the outside of the screw sleeve, and the bottom end of the vertical plate is arranged through the strip hole, and a push-pull block is also provided under the horizontal plate, and one end of the folding frame away from the connecting plate is hinged to the push-pull block, and a connecting column is also fixedly installed on the top end of the push-pull block, and the bottom end of the vertical plate is fixedly connected to the connecting column.

[0019] Furthermore, a motor is fixedly installed on the top of the horizontal plate, and the end of the output shaft of the motor is fixedly connected to the end of the screw rod. Bumps are fixedly installed on the top of the horizontal plate on both sides of the strip hole. There are two bumps on each side of the strip hole, and a guide rod is fixedly installed between the two bumps on the same side of the strip hole. A limit plate is also fixedly installed in the middle of the vertical plate, and a guide sleeve is fixedly installed on the end of the limit plate, and the guide sleeve is slidably arranged on the outside of the guide rod.

[0020] Furthermore, a vertically arranged assembly hole is provided at the center of the adjusting block, the hinge shaft is installed in the assembly hole, a plug hole is provided on the side wall of the adjusting block, the extension handle includes an insertion rod, one end of the insertion rod is fixedly inserted in the insertion hole, and the other end of the insertion rod is fixedly installed with a vertical handle, a notch is provided at the bottom end of the vertical handle, a clamping plate is provided inside the notch, a guide strip plate is also fixedly installed on the inner top wall of the notch, and the guide strip plate is provided between two adjacent clamping plates, and the guide strip plate is slidably connected to the clamping plate.

[0021] Furthermore, a slide groove is provided on the side wall of the clamping plate, a stop block is provided on the top of the slide groove, and a stop foot is integrally provided on the bottom of the guide plate, and the stop foot is slidably arranged in the slide groove.

[0022] A mechanical deep processing production wastewater treatment system using the above filter press, including a wastewater pool for collecting wastewater from a special machine processing plant, a sedimentation tank for collecting wastewater from a comprehensive machine processing plant, a solid-liquid separation device, an oil separation regulating tank, an integrated combined flotation device, an anaerobic water distribution tank, a CSTR high-efficiency anaerobic reactor, an anoxic tank, a contact oxidation tank, an integrated deep treatment equipment, a sludge concentration tank, a sludge dewatering machine, and a ditch for collecting indoor wastewater in a sewage treatment station;

[0023] The wastewater pool for collecting wastewater from the special machine processing plant and the sedimentation tank for collecting wastewater from the comprehensive machine processing plant are each provided with a solid-liquid separation device in front of them, and are both connected to the oil separation regulating tank. The oil separation regulating tank, the integrated combined flotation equipment, the anaerobic water distribution tank, the CSTR high-efficiency anaerobic reactor, the anoxic tank, the contact oxidation tank, and the integrated deep treatment equipment are connected in sequence. The indoor wastewater collection ditch of the sewage treatment station is connected to the oil separation regulating tank. The integrated combined flotation equipment, the contact oxidation tank, and the integrated deep treatment equipment are all connected to the sludge thickening tank. The sludge thickening tank and the sludge dewatering machine are also connected to the integrated deep treatment equipment. The supernatant of the sludge thickening tank and the filtrate of the sludge dewatering machine are returned to the integrated deep treatment equipment.

[0024] Furthermore, the solid-liquid separation device is an artificial grid with a grid spacing of 5 mm, and the oil separation regulating tank is also provided with a perforated aeration stirring device with an aeration volume of 2m 3 / (m2·h);

[0025] The effluent from the oil separation regulating tank is pumped into the integrated combined flotation equipment for drug addition reaction and flotation separation. The integrated combined flotation equipment consists of three parts: a drug liquid reaction zone, an air flotation contact zone, and an air flotation separation zone. The drug addition reaction in the drug liquid reaction zone is: demulsifier demulsification → coagulant PAC colloid destabilization → flocculant PAM adsorption bridging, and the pH is controlled at 7.5-8.3. During the drug addition reaction, PACAl2O3 is 26%, and the dosage is 0.43kg / m 3 Sewage, PAM is anionic, molecular weight is 1200, dosage is 0.006kg / m 3 Sewage;

[0026] The CSTR high-efficiency anaerobic reactor is equipped with a submersible stirring device, and the power of the submersible stirring machine is configured to be 15 (W / m 3 The CSTR high-efficiency anaerobic reactor is equipped with an online ORP meter and a thermometer, and the inlet water temperature is controlled at 30±5°C;

[0027] The contact oxidation tank has a filler filling rate of 90% and an aeration volume of 5 to 6 m3 / (m2·h);

[0028] The integrated deep treatment equipment includes three compartments: a reaction tank, a sedimentation tank, and a clear water tank. The reaction tank is added with PAC coagulant and PAM flocculant for reaction. The sedimentation tank is used for mud and water separation. The supernatant enters the clear water tank for short collection and then is discharged. The sedimentation tank is a vertical flow type with inclined tube fillers in the tank, and the surface load is 0.87m3 / m2·h.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The auxiliary mechanism 5 provided in the present invention can assist the filter press plate 11 in performing the preliminary squeezing auxiliary operation, cooperate with the hydraulic cylinder 8 to perform the sludge filtration, and can also assist the filter press plate 11 in performing the unified plate opening operation after the later filtration is completed, thereby improving the plate opening efficiency and facilitating the rapid collection of sludge. The extension handle 40 provided on the adjustment block 37 for plate opening and filtration can automatically adapt to the slider 28 on the outer side of the filter press plate 11, and even if there is a slight misalignment between the extension handle 40 and the slider 28, it still does not affect the positioning of the slider 28. In addition, the bottom of the adjustment block 37 can also be installed with a nozzle 47 for cleaning the filter press plate 11, which provides convenience for subsequent cleaning.

[0031] The invention has a targeted and unique design for wastewater treatment, which enables the wastewater treatment to reach the optimal state, can greatly reduce the amount of biological sludge generated, can achieve highly automated control, simple management, efficient wastewater treatment, compact equipment structure, small footprint, stable operation and compliance with standards, etc. At the same time, the introduction of this system can greatly increase the treatment capacity of the mechanical deep processing wastewater, and when used, it can increase the general conventional perfect treatment capacity by 75% under almost the same environment. At the same time, there is almost no need to discharge biological sludge, and there is no worry about sludge swelling. The anaerobic process controls the acidification stage, and the biogas production is greatly reduced.

[0032] At the same time, the fully enclosed design of the oil-water regulating tank of the present invention reduces the odor of corruption, the use of demulsifiers and coagulation flotation, high processing load, stable effect, extremely small land area, stabilization of the biological phase and the treatment system, improved treatment water quality, almost no biological sludge is generated, almost no biogas is generated, the use of deodorization equipment is omitted, and the coagulation and sedimentation deep treatment after biological treatment assists the effluent, which is stable and meets the discharge standards. The sedimentation tank is a vertical flow type, does not require sludge scraping equipment, saves power, and has built-in inclined tube fillers to increase the processing load, save land, and can save the construction cost of the sewage treatment plant, occupying nearly half of the land. The operation is highly automated and the management is simple, the amount of residual sludge is small, the equipment failure rate is low, and the operation and maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 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.

[0034] Figure 1 is a structural schematic diagram of a filter press according to an embodiment of the present invention;

[0035] Figure 2 is a structural schematic diagram of a filter press mechanism in a filter press according to an embodiment of the present invention;

[0036] Figure 3 is a schematic structural diagram of a liquid discharge assembly in a filter press according to an embodiment of the present invention;

[0037] Figure 4 is a schematic structural diagram of a frame in a filter press according to an embodiment of the present invention;

[0038] Figure 5 2 is a schematic structural diagram of a filter press plate in a filter press according to an embodiment of the present invention;

[0039] Figure 6 is a schematic structural diagram of a mud receiving vehicle in a filter press according to an embodiment of the present invention;

[0040] Figure 7 is a structural schematic diagram of an auxiliary mechanism in a filter press according to an embodiment of the present invention;

[0041] Figure 8 2 is a schematic diagram of the top structure of a horizontal plate in a filter press according to an embodiment of the present invention;

[0042] Fig. 9 is a schematic diagram of the bottom structure of a horizontal plate in a filter press according to an embodiment of the present invention;

[0043] Fig.10 is a structural schematic diagram of an auxiliary component in a filter press according to an embodiment of the present invention;

[0044] Fig.11 is a schematic structural diagram of a folding frame in a filter press according to an embodiment of the present invention;

[0045] Fig.12 is a schematic structural diagram of an adjusting block in a filter press according to an embodiment of the present invention;

[0046] Fig.13 is a schematic diagram of the bottom structure of an adjusting block in a filter press according to an embodiment of the present invention;

[0047] Fig.14 is a schematic structural diagram of an extension handle in a filter press according to an embodiment of the present invention;

[0048] Fig.15 is a schematic structural diagram of a clamping plate in a filter press according to an embodiment of the present invention;

[0049] Fig.16 2 is a schematic structural diagram of a guide bar plate in a filter press according to an embodiment of the present invention;

[0050] Fig.17 It is a schematic diagram of a mechanical deep processing production wastewater treatment system according to an embodiment of the present invention.

[0051] Reference numerals:

[0052] 1. Frame; 2. Filter press mechanism; 3. Mud receiving vehicle; 4. Drain assembly; 5. Auxiliary mechanism; 6. First baffle; 7. Second baffle; 8. Hydraulic cylinder; 9. Extrusion shaft; 10. Extrusion plate; 11. Filter press plate; 12. Crossbeam; 13. Slide rail; 14. Lower hopper; 15. Mud drop port; 16. First drain port; 17. First drain pipe; 18. Valve; 19. First water outlet pipe; 20. Second drain port; 21. Second drain pipe; 22. Negative pressure pump; 23. Second water outlet pipe; 24. Pressure gauge; 25. Lifting cylinder; 26. Lifting plate; 27. Filter screen plate; 28. Sliding block; 29. ​​Material receiving box; 30. Roller; 31. Push handle; 32. Frame; 33. Cross plate; 34. End plate; 35, cross bar; 36, auxiliary component; 37, adjustment block; 38, folding frame; 39, sliding sleeve; 40, extension handle; 41, hinge plate; 42, hinge shaft; 43, connecting plate; 44, inner hole; 45, locking shaft; 46, push-pull block; 47, nozzle; 48, through hole; 49, water pipe; 50, strip hole; 51, fixing block; 52, screw rod; 53, screw sleeve; 54, vertical plate; 55, connecting column; 56, motor; 57, bump; 58, guide rod; 59, limit plate; 60, guide sleeve; 61, assembly hole; 62, plug hole; 63, plug rod; 64, vertical handle; 65, notch; 66, card plate; 67, guide strip plate; 68, slide groove; 69, stopper; 70, foot stopper. DETAILED DESCRIPTION

[0053] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0054] Example 1: Please refer to Figure 1-5A filter press according to an embodiment of the present invention comprises a frame 1, a filter press mechanism 2 is installed on the top of the frame 1, a mud receiving vehicle 3 is provided inside the frame 1 and is located directly below the filter press mechanism 2, a drainage component 4 is also installed on the same end of the frame 1 and the filter press mechanism 2, an auxiliary mechanism 5 is provided directly above the filter press mechanism 2, the filter press mechanism 2 is used for filtering the sludge, the waste liquid generated during the filtering process can be discharged through the drainage component 4, and the sludge generated after the filtering can be dropped into the mud receiving vehicle 3 for collection at a later stage, and the auxiliary mechanism 5 can perform auxiliary filtering on the filter press mechanism 2 in the early stage, as well as auxiliary operations for removing the sludge inside the filter press mechanism 2 at a later stage.

[0055] The filter press mechanism 2 includes a first baffle 6 and a second baffle 7 fixedly mounted at both ends of the top of the frame 1. The first baffle 6 and the second baffle 7 are arranged opposite to each other. A hydraulic cylinder 8 is fixedly mounted at the center of one end face of the first baffle 6 away from the second baffle 7. An extrusion shaft 9 is fixedly connected to the output end of the hydraulic cylinder 8. The extrusion shaft 9 passes through the first baffle 6 and is fixedly mounted with an extrusion plate 10. A plurality of filter press plates 11 are arranged between the extrusion plate 10 and the second baffle 7. The sludge is introduced between the filter press plates 11. The extrusion shaft 9 is driven to move by the hydraulic cylinder 8. The extrusion shaft 9 can drive the extrusion plate 10 to squeeze the filter press plate 11, thereby squeezing the moisture in the sludge into the drainage component 4. In order to ensure the stability of the filter press plate 11, a crossbeam 12 is fixedly mounted on the side between the first baffle 6 and the second baffle 7. A slide rail 13 is fixedly mounted on the top of the crossbeam 12. A slider 28 is fixedly mounted on the outer wall of the filter press plate 11, and the bottom of the slider 28 is slidably arranged on the slide rail 13.

[0056] A lower hopper 14 is fixedly installed at the top of the inner part of the frame 1, and a mud outlet 15 is opened at the bottom of the lower hopper 14. The mud receiving vehicle 3 is arranged directly below the mud outlet 15. The lower hopper 14 can ensure that the squeezed sludge falls stably into the mud receiving vehicle 4. A filter screen plate 27 is arranged inside the filter press plate 11.

[0057] The drainage assembly 4 includes a first drain port 16 opened on the second baffle plate 7 near the four corners, a first drain pipe 17 is fixedly installed at the end of the first drain port 16, a first water outlet pipe 19 is fixedly installed at one end of the first drain pipe 17 away from the first drain port 16, and a valve 18 is also installed at the connection between the first water outlet pipe 19 and the first drain pipe 17, a second drain port 20 is opened in the middle of the second baffle plate 7, a second drain pipe 21 is fixedly installed at the end of the second drain port 20, a negative pressure pump 22 arranged near the second baffle plate 7 is also fixedly installed inside the frame 1, the input end of the negative pressure pump 22 is connected to the second drain pipe 21, the output end of the negative pressure pump 22 is fixedly connected to the second water outlet pipe 23, and the second drain pipe 21 is also connected to a pressure gauge 24. The first drain port 16 can discharge the moisture in the sludge near the four corners of the second baffle 7 during the extrusion process. This part of the moisture can be discharged more easily in the early extrusion process, and the second drain port 20 can be used to extract by starting the negative pressure pump 22 after the filter press plates 11 are completely squeezed between each other, so that the remaining moisture in the sludge is discharged through the second drain port 20, thereby realizing the effective discharge of moisture in the sludge.

[0058] In order to facilitate the installation and subsequent adjustment of the auxiliary mechanism 5, in this embodiment, the top of the first baffle 6 and the second baffle 7 are fixedly installed with a lifting cylinder 25 near both ends, and the top end of the lifting cylinder 25 is fixedly installed with a lifting plate 26, and the bottom of the auxiliary mechanism 5 is fixedly installed on the lifting plate 26 near both ends. The height of the auxiliary mechanism 5 can be adjusted by the lifting cylinder 25, so that it can cooperate with the filter plate 11 to perform auxiliary filtration or subsequent plate opening operations.

[0059] See also Figure 6 The mud receiving vehicle 3 includes a receiving box 29, rollers 30 are installed at the four corners of the bottom of the receiving box 29, a push handle 31 is fixedly installed on the top of the outer wall of one side of the receiving box 29, and a clamping frame 32 is fixedly welded on the outer wall of the receiving box 29. The receiving box 29 can be pushed by the push handle 31, so that it can be moved and transported after receiving the mud, and a table can be placed inside the set clamping frame 32 to mark the types of sludge in the receiving box 29, which is convenient for subsequent classification and processing.

[0060] See also Figure 7-12The auxiliary mechanism 5 includes a transverse plate 33 arranged directly above the frame 1, the transverse plate 33 is arranged along the length direction of the frame 1, and end plates 34 are fixedly installed at both ends of the bottom of the transverse plate 33, and the bottom ends of the end plates 34 are fixedly installed on the lifting plate 26, and a cross bar 35 is fixedly installed at the bottom near both sides between the two end plates 34. An auxiliary component 36 is also provided between the two end plates 34, and the auxiliary component 36 is slidably connected to the cross bar 35. The auxiliary component 36 includes a plurality of adjustment blocks 37 arranged side by side, and the tops of the adjustment blocks 37 are connected by a folding frame 38. A sliding sleeve 39 is symmetrically installed along the center of the upper edge of the adjustment block 37, and the sliding sleeve 39 is slidably arranged on the outside of the cross bar 35. Extension handles 40 are fixedly installed at both ends of the adjustment block 37, and a nozzle 47 is also installed at the bottom of the adjustment block 37. A through hole 48 is opened in the middle of the adjustment block 37, and a water pipe 49 is penetrated in the through hole 48, and the nozzle 47 is connected to the water pipe 49. By adjusting the elongated length of the folding frame 38, the distance between the adjusting blocks 37 can be adjusted. When the position of the adjusting block 37 corresponds to the position of the filter press plate 11 below, the overall height is adjusted by the lifting cylinder 25 so that the extension handle 40 can contact the slider 28 on the outer wall of the filter press plate 11, so that the filter press plate 11 can be assisted in opening the plate later, and the auxiliary squeezing operation can also be performed when the filter press plate 11 is squeezed in the early stage. In addition, the nozzle 47 installed at the bottom of the adjusting block 37 can also rinse and clean the surface of the filter press plate 11 after the plate is opened, thereby reducing the trouble of subsequent cleaning.

[0061] The folding frame 38 includes a plurality of hinged plates 41 hinged to each other in the middle, the middle parts of the hinged plates 41 are hinged to each other through hinge shafts 42, and the bottom of the hinge shaft 42 is fixedly mounted on the adjustment block 37, an inner hole 44 is provided on the end plate 34 arranged near the second baffle plate 7, a locking shaft 45 is fixedly mounted inside the inner hole 44, and a connecting plate 43 is also connected to the top end of the hinge shaft 42 arranged near the inner hole 44, and one end of the connecting plate 43 away from the hinge shaft 42 is fixedly connected to the locking shaft 45. When the folding frame 38 is adjusted to be unfolded or folded, the corresponding adjustment block 37 can be driven to move through the hinge shaft 42, and the locking shaft 45 can position one end of the folding frame 38, so that when the folding frame 38 drives the adjustment block 37 to move, it can be realized from one end near the second baffle plate 7 toward one end of the first baffle plate 6 to unfold and move, so as to realize the opening or squeezing of the filter press plates 11 in sequence.

[0062] In order to enable effective automatic adjustment of the folding frame 38, in the present embodiment, a strip hole 50 is provided on the cross plate 33 along its length direction, and the strip hole 50 is arranged close to the first baffle plate 6. A fixing block 51 is fixedly installed at the top of the cross plate 33 at both ends of the strip hole 50, and a screw rod 52 is rotatably installed between the two fixing blocks 51. A screw sleeve 53 is screwed on the outside of the screw rod 52, and a vertical plate 54 is fixedly installed on the outside of the screw sleeve 53. The bottom end of the vertical plate 54 is arranged through the strip hole 50. A push-pull block 46 is also provided below the cross plate 33, and the push-pull block 46 is also slidably arranged on the outside of the cross bar 35. The end of the folding frame 38 away from the connecting plate 43 is hinged to the push-pull block 46, and the top end of the push-pull block 46 is also fixedly installed with a connecting column 55, and the bottom end of the vertical plate 54 is fixedly connected to the connecting column 55. By driving the screw rod 52 to rotate through external force, the screw rod 52 can drive the vertical plate 54 to move synchronously through the screw sleeve 53. The movement of the vertical plate 54 can drive the push-pull block 46 to move through the connecting column 55. The push-pull block 46 can then adjust the expansion of the folding frame 38, and then adjust the position of the adjustment block 37.

[0063] A motor 56 is also fixedly installed on the top of the horizontal plate 33, and the end of the output shaft of the motor 56 is fixedly connected to the end of the screw rod 52. The top of the horizontal plate 33 is also fixedly installed with protrusions 57 on both sides of the strip hole 50. There are two protrusions 57 on each side of the strip hole 50, and a guide rod 58 is fixedly installed between the two protrusions 57 on the same side of the strip hole 50. A limit plate 59 is also fixedly installed in the middle of the vertical plate 54, and a guide sleeve 60 is fixedly installed at the end of the limit plate 59. The guide sleeve 60 is slidably arranged outside the guide rod 58. The motor 56 can drive the rotation adjustment of the screw rod 52, and the guide rod 58 and the guide sleeve 60 can ensure the stable movement adjustment of the vertical plate 54, so that the folding frame 38 can be stably folded and extended.

[0064] See also Figure 13-16A vertically arranged assembly hole 61 is provided at the center of the adjusting block 37, and the hinge shaft 42 is installed in the assembly hole 61. A plug hole 62 is provided on the side wall of the adjusting block 37. The extending handle 40 includes an insertion rod 63, one end of the insertion rod 63 is fixedly inserted in the plug hole 62, and a vertical handle 64 is fixedly installed on the other end of the insertion rod 63. A notch 65 is provided at the bottom end of the vertical handle 64, and a card plate 66 is provided inside the notch 65. A guide plate 67 is also fixedly installed on the inner top wall of the notch 65, and the guide plate 67 is provided between two adjacent card plates 66, and the guide plate 67 is slidably connected with the card plate 66. The end of the card plate 66 in the initial state is in a relatively horizontal state. When the entire auxiliary mechanism 5 is driven up and down by the lifting cylinder 25, the adjusting block 37 that has been adjusted in position will also rise and fall synchronously. At this time, the card plate 66 will contact the slider 28 on the outer wall of the filter press plate 11, and because the card plate 66 is slidably connected to the guide plate 67, the card plate 66 that is directly in contact with the slider 28 will be lifted up by the force of the slider 28. At this time, the card plate 66 that has not been lifted up will clamp the slider 28 in the middle, thereby forming a clamp for limiting the slider 28. If the adjusting block 37 is adjusted again, the card plate 66 can be used to drive the slider 28 to slide on the slide rail 13, thereby realizing the extrusion or opening operation of the filter press plate 11.

[0065] A slide groove 68 is provided on the side wall of the card plate 66, and a stopper 69 is provided on the top of the slide groove 68. A stopper foot 70 is integrally provided on the bottom of the guide strip plate 67, and the stopper foot 70 is slidably arranged in the slide groove 68. By using the stopper foot 70 and the stopper block 69 to resist and limit each other, the card plate 66 can be stably installed without external force connection, and at the same time, it can ensure that the card plate 66 can be automatically adjusted when the slider 28 acts on it.

[0066] Through the above-mentioned scheme of the present invention, the auxiliary mechanism 5 provided in the present invention can assist the filter press plate 11 in performing the preliminary extrusion auxiliary operation, cooperate with the hydraulic cylinder 8 to perform sludge filtration, and can also assist the filter press plate 11 in performing a unified plate opening operation after the later filtration is completed, thereby improving the efficiency of the plate opening and facilitating the rapid collection of sludge. The extension handle 40 provided on the adjustment block 37 for plate opening and filtration can automatically adapt to the slider 28 on the outside of the filter press plate 11, and even if there is a slight misalignment between the extension handle 40 and the slider 28, it still does not affect the positioning of the slider 28, and the bottom of the adjustment block 37 can also be installed with a nozzle 47 for cleaning the filter press plate 11, which provides convenience for subsequent cleaning.

[0067] Example 2: Please refer to Fig.17The present invention also provides a mechanical deep processing production wastewater treatment system that uses the above-mentioned filter press to treat the wastewater generated in the mechanical deep processing process, including a wastewater pool for collecting wastewater from a special machine processing plant, a sedimentation tank for collecting wastewater from a comprehensive machine processing plant, a solid-liquid separation device, an oil separation regulating tank, an integrated combined flotation equipment, an anaerobic water distribution tank, a CSTR high-efficiency anaerobic reactor, an anoxic tank, a contact oxidation tank, an integrated deep treatment equipment, a sludge thickening tank, a sludge dewatering machine, and a sewage treatment station indoor wastewater collection ditch.

[0068] Among them: the wastewater pool for collecting wastewater from special machine processing workshops and the sedimentation tank for collecting wastewater from comprehensive machine processing workshops are each equipped with a solid-liquid separation device, and are both connected to the oil separator regulating tank; the oil separator regulating tank, the integrated combined flotation equipment, the anaerobic water distribution tank, the CSTR high-efficiency anaerobic reactor, the anoxic tank, the contact oxidation tank, and the integrated deep treatment equipment are connected in sequence; the indoor wastewater collection ditch of the sewage treatment station is connected to the oil separator regulating tank; the integrated combined flotation equipment, the contact oxidation tank, and the integrated deep treatment equipment are all connected to the sludge thickening tank, and the sludge generated by them is discharged into the sludge thickening tank, and after passing through the sludge dewatering machine, a mud cake is formed for external treatment; the sludge thickening tank and the sludge dewatering machine are also connected to the integrated deep treatment equipment, and the supernatant of the sludge thickening tank and the filtrate of the sludge dewatering machine are returned to the integrated deep treatment equipment.

[0069] The solid-liquid separation device added in front of the wastewater tank and sedimentation tank can remove large pieces of garbage in the sewage, prevent large objects from clogging and damaging subsequent pumps and other units, and reduce the occurrence of equipment failures. The solid-liquid separation device is an artificial grid with a grid pitch of 5mm. The wastewater after solid-liquid separation is lifted by a pump and enters the oil separator.

[0070] The wastewater entering the oil separator and regulating tank can be separated into oil and water, the floating oil in the wastewater can be preliminarily removed, and the wastewater with relatively large fluctuations in characteristics can be equalized and regulated to make its water quantity and quality relatively stable.

[0071] The oil separation regulating tank is also provided with a perforated aeration and stirring device, and the aeration volume is 2m3 / (m2·h).

[0072] The effluent from the oil-water separation regulating tank is pumped into the integrated combined flotation equipment for drug addition reaction and flotation separation. The integrated combined flotation equipment consists of three parts: a drug liquid reaction zone, a flotation contact zone, and a flotation separation zone. The sewage with a good drug addition reaction in the drug liquid reaction zone enters the flotation contact zone, is fully mixed and contacted with the dissolved air water released by the dissolved air releaser, and the flocs in the sewage fully absorb and adhere to tiny bubbles, and then enter the flotation separation zone. The flocs float to the water surface under the action of the buoyancy of the bubbles to form a scum layer, which is scraped to the sludge tank by a scraper, and the clean water in the lower layer is collected to the clean water tank through a water collecting pipe, a part of which is used for the return dissolved air water, and the other part of the remaining clean water is discharged through the overflow port.

[0073] The liquid medicine reaction zone is provided with online pH metering. The generation and release principle of the dissolved air water is as follows: clean water is pressurized by a dissolved air water pump and enters the dissolved air tank through a control valve. Air and water are dissolved, separated and circulated in the dissolved air tank. The fully dissolved air water is released into the air flotation contact zone by the dissolved air releaser. The air in the dissolved air tank is continuously dissolved into the water, and the air will be continuously reduced. At this time, the float liquid level controller can control the air compressor or pressure air source to supply an appropriate amount of air to ensure sufficient dissolved air volume.

[0074] The dosing reaction in the liquid reaction zone is: demulsifier demulsification (agglomeration of insoluble liquid particles) → coagulant PAC colloid destabilization (production of flocs) → flocculant PAM adsorption bridging (floc enlargement). The reaction efficiency is greatly affected by the acid-base characteristics of the solution. The pH value is preferably controlled at 7.5-8.3. Before the reaction (regulation tank) or during the reaction (reaction zone), an appropriate amount of liquid alkali or sulfuric acid is added to adjust the acidity and alkalinity of the water.

[0075] During the dosing reaction, PACAl2O3 is 26% and the dosage is 0.43kg / m 3 Sewage, PAM is anionic, molecular weight is 1200, dosage is 0.006kg / m 3 Sewage. The dosing reaction can not only reduce the sensory indicators of water quality such as turbidity and color of the raw water, but also remove various toxic and harmful pollutants such as heavy metal ions, dissolved and insoluble organic matter.

[0076] The CSTR high-efficiency anaerobic reactor is equipped with a submersible stirring device to keep the wastewater and microorganisms in a completely mixed state. The water inlet adopts a constant temperature continuous water inlet operation. The newly entered wastewater is quickly mixed with the bacteria in the reactor due to the stirring effect, so that the wastewater substrate concentration is always kept at a relatively low state, completing the transformation of insoluble organic pollutants in the wastewater into soluble organic pollutants, improving the biodegradability of the wastewater, and being able to degrade some organic matter and remove suspended matter in the inlet water. The power configuration of the submersible mixer is 15 (W / m 3 The CSTR high-efficiency anaerobic reactor is equipped with an online ORP meter and a thermometer, and the inlet water temperature is controlled at 30±5°C.

[0077] The anoxic tank acts as a biological selector, which is beneficial to control sludge expansion. The alkalinity produced by denitrification can supplement the alkalinity consumed by the nitrification process. The amount of residual sludge in the system is small. The contact oxidation tank is also called a "submerged biological filter". Fillers are set in the contact oxidation tank, and the fillers are submerged in the wastewater. The wastewater flows through the fillers covered with biofilm at a certain flow rate and contacts each other extensively. Under the adsorption and metabolic functions of microorganisms in the biofilm and the suspended sludge in the tank, the pollutants in the sewage are removed. The same aeration method as the aeration tank is adopted to provide the required oxygen to the microorganisms, and to play a stirring and mixing role. It is also called "contact aeration method". It is a biological treatment technology between the activated sludge method and the biological filter. It is a biofilm method with the characteristics of the activated sludge method and has the advantages of both.

[0078] The contact oxidation tank is provided with an online pH meter. Instructions for using a combined biological filler in the contact oxidation tank: When selecting a sewage treatment process, in a limited space, the conventional activated sludge process often cannot meet the treatment requirements of high BOD wastewater. Aerobic tanks are usually arranged with combined fillers, which mainly improve the hydrolysis tolerance to shock loads and make the hydrolysis process run stably. It is not easy to tolerate shock loads, while the aerobic biological contact aeration process can greatly increase the volumetric load in a limited space, which is 2-3 times that of the general traditional A / O activated sludge process, and the tolerance to high-concentration organic wastewater shocks is significantly enhanced.

[0079] The contact oxidation pond has a filling rate of 90% and an aeration volume of 5 to 6 m3 / (m2·h).

[0080] The amount of residual sludge in the biochemical system is extremely small. The CSTR high-efficiency anaerobic reactor and the anoxic tank do not need to discharge sludge. After the contact oxidation tank has been running for a certain number of years, the amount of detached biofilm (biological sludge) reaches a certain level and affects the operation of subsequent systems. The biological sludge can be discharged through the vent pipe to the thickening tank for treatment.

[0081] The integrated deep treatment equipment includes three compartments: a reaction tank, a sedimentation tank, and a clear water tank. The reaction tank is added with PAC coagulant and PAM flocculant for reaction. Pollutants combine with the reagents to produce flocs. The sedimentation tank separates mud and water. The supernatant enters the clear water tank for short collection and then is discharged (to the local sewage treatment plant). This process can further remove difficult-to-degrade organic matter and remove SS in the water to ensure that the effluent meets the standards. The sedimentation tank is a vertical flow type with inclined tube fillers in the tank and a surface load of 0.87m3 / m2·h.

[0082] The sludge generated by the flotation and deep treatment equipment enters the sludge thickening tank for reduction and adjustment, and then is pumped into the sludge dewatering machine for further dehydration and reduction. The sludge dewatering filtrate and the supernatant of the thickening tank can enter the secondary reaction tank for further treatment according to the situation, or directly enter the clear water tank for temporary storage and then be discharged. The dehydrated mud cake is outsourced for special disposal to minimize the impact of sludge generation on the environment.

[0083] The sludge dewatering machine is a plate and frame filter press.

[0084] The invention has a targeted and unique design for wastewater treatment, which enables the wastewater treatment to reach the optimal state, can greatly reduce the amount of biological sludge generated, can achieve highly automated control, simple management, efficient wastewater treatment, compact equipment structure, small footprint, stable operation and compliance with standards, etc. At the same time, the introduction of this system can greatly increase the treatment capacity of the mechanical deep processing wastewater, and when used, it can increase the general conventional perfect treatment capacity by 75% under almost the same environment. At the same time, there is almost no need to discharge biological sludge, and there is no worry about sludge swelling. The anaerobic process controls the acidification stage, and the biogas production is greatly reduced.

[0085] At the same time, the fully enclosed design of the oil-water regulating tank of the present invention reduces the odor of corruption, the use of demulsifiers and coagulation flotation, high processing load, stable effect, extremely small land area, stabilization of the biological phase and the treatment system, improved treatment water quality, almost no biological sludge is generated, almost no biogas is generated, the use of deodorization equipment is omitted, and the coagulation and sedimentation deep treatment after biological treatment assists the effluent, which is stable and meets the discharge standards. The sedimentation tank is a vertical flow type, does not require sludge scraping equipment, saves power, and has built-in inclined tube fillers to increase the processing load, save land, and can save the construction cost of the sewage treatment plant, occupying nearly half of the land. The operation is highly automated and the management is simple, the amount of residual sludge is small, the equipment failure rate is low, and the operation and maintenance costs are low.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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 filter press, comprising a frame (1), characterized in that: A filter press mechanism (2) is installed on the top of the frame (1), a mud receiving vehicle (3) is provided inside the frame (1) and is located directly below the filter press mechanism (2), a liquid discharge assembly (4) is also installed at the same end of the frame (1) and the filter press mechanism (2), and an auxiliary mechanism (5) is provided directly above the filter press mechanism (2); The filter press mechanism (2) comprises a first baffle (6) and a second baffle (7) fixedly mounted at both ends of the top of the frame (1); a hydraulic cylinder (8) is fixedly mounted at the center of an end surface of the first baffle (6) away from the second baffle (7); an output end of the hydraulic cylinder (8) is fixedly connected to an extrusion shaft (9); the extrusion shaft (9) passes through the first baffle (6) and is fixedly mounted with an extrusion plate (10); a filter press plate (11) is provided between the extrusion plate (10) and the second baffle (7); a crossbeam (12) is fixedly mounted on the side between the first baffle (6) and the second baffle (7); a slide rail (13) is fixedly mounted on the top of the crossbeam (12); and a slider (28) is fixedly mounted on the outer wall of the filter press plate (11); The auxiliary mechanism (5) comprises a transverse plate (33) arranged directly above the frame (1), end plates (34) are fixedly installed at both ends of the bottom of the transverse plate (33), a transverse bar (35) is fixedly installed at the bottom near both sides between the two end plates (34), an auxiliary component (36) is also arranged between the two end plates (34), the auxiliary component (36) is slidably connected to the transverse bar (35), and the auxiliary component (36) comprises a plurality of adjustment blocks (37) arranged side by side, and the tops of the adjustment blocks (37) are connected to each other. The adjusting block (37) is connected via a folding frame (38); a sliding sleeve (39) is symmetrically installed on the center of the adjusting block (37); the sliding sleeve (39) is slidably installed outside the cross bar (35); extension handles (40) are fixedly installed at both ends of the adjusting block (37); a nozzle (47) is also installed at the bottom of the adjusting block (37); a through hole (48) is opened in the middle of the adjusting block (37); a water pipe (49) is inserted into the through hole (48); and the nozzle (47) is connected to the water pipe (49).

2. A filter press according to claim 1, characterized in that: A lower hopper (14) is fixedly mounted on the top of the frame (1), a mud outlet (15) is provided at the bottom of the lower hopper (14), a lifting cylinder (25) is fixedly mounted near both ends of the top of the first baffle (6) and the second baffle (7), a lifting plate (26) is fixedly mounted on the top end of the lifting cylinder (25), the bottom end of the end plate (34) is fixedly mounted on the lifting plate (26), a filter plate (27) is provided inside the filter press plate (11), the mud receiving vehicle (3) comprises a receiving box (29), rollers (30) are installed at the four corners of the bottom of the receiving box (29), a push handle (31) is fixedly mounted on the top of the outer wall of one side of the receiving box (29), and a clamping frame (32) is fixedly welded on the outer wall of the receiving box (29).

3. A filter press according to claim 2, characterized in that: The drainage assembly (4) comprises a first drainage port (16) provided on the second baffle plate (7) near four corners, a first drainage pipe (17) being fixedly mounted at the end of the first drainage port (16), a first water outlet pipe (19) being fixedly mounted at one end of the first drainage pipe (17) away from the first drainage port (16), a valve (18) being further mounted at the connection between the first water outlet pipe (19) and the first drainage pipe (17), a second drainage port (20) being provided in the middle of the second baffle plate (7), a second drainage pipe (21) being fixedly mounted at the end of the second drainage port (20), a negative pressure pump (22) being further fixedly mounted inside the frame (1) and being arranged near the second baffle plate (7), an input end of the negative pressure pump (22) being connected to the second drainage pipe (21), an output end of the negative pressure pump (22) being fixedly connected to the second water outlet pipe (23), and a pressure gauge (24) being further mounted on the second drainage pipe (21).

4. A filter press according to claim 3, characterized in that: The folding frame (38) comprises a plurality of hinged plates (41) hinged to each other in the middle parts, the middle parts of the hinged plates (41) are hinged to each other through a hinge shaft (42), the bottom of the hinge shaft (42) is fixedly mounted on the adjustment block (37), an inner hole (44) is provided on the end plate (34) arranged near the second baffle (7), a locking shaft (45) is fixedly mounted inside the inner hole (44), the top end of the hinge shaft (42) arranged near the inner hole (44) is also connected to a connecting plate (43), and the end of the connecting plate (43) away from the hinge shaft (42) is fixedly connected to the locking shaft (45).

5. A filter press according to claim 4, characterized in that: The transverse plate (33) is provided with a strip hole (50), and a fixing block (51) is fixedly installed at the top of the transverse plate (33) at both ends of the strip hole (50), and a screw rod (52) is rotatably installed between the two fixing blocks (51), and a screw sleeve (53) is screwed on the outside of the screw rod (52), and a vertical plate (54) is fixedly installed on the outside of the screw sleeve (53), and the bottom end of the vertical plate (54) passes through the strip hole (50). A push-pull block (46) is also provided below the transverse plate (33), and one end of the folding frame (38) away from the connecting plate (43) is hinged to the push-pull block (46), and a connecting column (55) is also fixedly installed on the top end of the push-pull block (46), and the bottom end of the vertical plate (54) is fixedly connected to the connecting column (55).

6. A filter press according to claim 5, characterized in that: A motor (56) is also fixedly mounted on the top of the horizontal plate (33), and the end of the output shaft of the motor (56) is fixedly connected to the end of the screw rod (52). The top of the horizontal plate (33) is also fixedly mounted with protrusions (57) on both sides of the strip hole (50), and two protrusions (57) are provided on each side of the strip hole (50), and a guide rod (58) is fixedly mounted between the two protrusions (57) on the same side of the strip hole (50). A limit plate (59) is also fixedly mounted on the middle part of the vertical plate (54), and a guide sleeve (60) is fixedly mounted on the end of the limit plate (59), and the guide sleeve (60) is slidably arranged outside the guide rod (58).

7. A filter press according to claim 6, characterized in that: A vertically arranged assembly hole (61) is provided at the center of the adjusting block (37), the hinge shaft (42) is installed in the assembly hole (61), a plug hole (62) is provided on the side wall of the adjusting block (37), the extension handle (40) comprises an insertion rod (63), one end of the insertion rod (63) is fixedly inserted in the plug hole (62), the other end of the insertion rod (63) is fixedly installed with a vertical handle (64), a notch (65) is provided at the bottom end of the vertical handle (64), a card plate (66) is provided inside the notch (65), a guide plate (67) is also fixedly installed on the inner top wall of the notch (65), and the guide plate (67) is provided between two adjacent card plates (66), and the guide plate (67) is slidably connected to the card plate (66).

8. A filter press according to claim 7, characterized in that: A slide groove (68) is provided on the side wall of the clamping plate (66), a stopper (69) is provided on the top of the slide groove (68), and a stopper foot (70) is integrally provided on the bottom of the guide plate (67), and the stopper foot (70) is slidably arranged in the slide groove (68).

9. A mechanical deep processing production wastewater treatment system using the filter press according to claim 8, characterized in that: It includes a wastewater pool for collecting wastewater from special machine processing plants, a sedimentation tank for collecting wastewater from comprehensive machine processing plants, a solid-liquid separation device, an oil separation regulating tank, an integrated combined flotation equipment, an anaerobic water distribution tank, a CSTR high-efficiency anaerobic reactor, an anoxic tank, a contact oxidation tank, an integrated deep treatment equipment, a sludge thickening tank, a sludge dewatering machine, and a ditch for collecting indoor wastewater in a sewage treatment plant; The wastewater pool for collecting wastewater from the special machine processing plant and the sedimentation tank for collecting wastewater from the comprehensive machine processing plant are each provided with a solid-liquid separation device in front of them, and are both connected to the oil separation regulating tank. The oil separation regulating tank, the integrated combined flotation equipment, the anaerobic water distribution tank, the CSTR high-efficiency anaerobic reactor, the anoxic tank, the contact oxidation tank, and the integrated deep treatment equipment are connected in sequence. The indoor wastewater collection ditch of the sewage treatment station is connected to the oil separation regulating tank. The integrated combined flotation equipment, the contact oxidation tank, and the integrated deep treatment equipment are all connected to the sludge thickening tank. The sludge thickening tank and the sludge dewatering machine are also connected to the integrated deep treatment equipment. The supernatant of the sludge thickening tank and the filtrate of the sludge dewatering machine are returned to the integrated deep treatment equipment.

10. The mechanical deep processing production wastewater treatment system according to claim 9 is characterized in that: The solid-liquid separation device is an artificial grid with a grid spacing of 5 mm. The oil separation regulating tank is also equipped with a perforated aeration stirring device with an aeration volume of 2m 3 / (m2·h); The effluent from the oil separation regulating tank is pumped into the integrated combined flotation equipment for drug addition reaction and flotation separation. The integrated combined flotation equipment consists of three parts: a drug liquid reaction zone, an air flotation contact zone, and an air flotation separation zone. The drug addition reaction in the drug liquid reaction zone is: demulsifier demulsification → coagulant PAC colloid destabilization → flocculant PAM adsorption bridging, and the pH is controlled at 7.5-8.

3. During the drug addition reaction, PACAl2O3 is 26%, and the dosage is 0.43kg / m 3 Sewage, PAM is anionic, molecular weight is 1200, dosage is 0.006kg / m 3 Sewage; The CSTR high-efficiency anaerobic reactor is equipped with a submersible stirring device, and the power of the submersible stirring machine is configured to be 15 (W / m 3 The CSTR high-efficiency anaerobic reactor is equipped with an online ORP meter and a thermometer, and the inlet water temperature is controlled at 30±5°C; The contact oxidation tank has a filler filling rate of 90% and an aeration volume of 5 to 6 m3 / (m2·h); The integrated deep treatment equipment includes three compartments: a reaction tank, a sedimentation tank, and a clear water tank. The reaction tank is added with PAC coagulant and PAM flocculant for reaction. The sedimentation tank is used for mud and water separation. The supernatant enters the clear water tank for short collection and then is discharged. The sedimentation tank is a vertical flow type with inclined tube fillers in the tank, and the surface load is 0.87m3 / m2·h.

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