Activated sludge hydraulic dewatering system

Abstract

The present application relates to active sludge hydraulic dewatering system, it includes main body frame;It is provided with filter cloth module on main body frame, one-way output filter water, and carries sludge forward;Hydraulic composite module is used for closing, and through the upper and lower filter cloth commonly wrapped sludge carries out extrusion dewatering;The present application is reasonable in design, compact in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to an activated sludge hydraulic dewatering system. BACKGROUND

[0002] Activated sludge is a byproduct produced in the process of sewage treatment, and has the characteristics of high water content. Its treatment and disposal has been an important issue in the field of environmental engineering. The source of activated sludge is mainly municipal domestic water, building material wastewater, etc. In order to treat these wastewaters, flocculants are often added, but after adding flocculants, it brings great challenges to the subsequent drying, resource utilization and landfill of sludge. Because the water content of these activated sludge is relatively high, and the content of organic dry matter is particularly low, which brings great challenges to the subsequent transportation, landfill and resource utilization. Generally speaking, this kind of sludge mainly includes four kinds of water, which are interstitial water, capillary bound water, adsorbed water and internal water, etc. Because these water exists in microbial cells, it increases the difficulty of sludge drying treatment and reduces the application effect of sludge. As we all know, interstitial water is water existing in the interstitial space of particles, accounting for about 70% of the water content in solid waste, mainly separated by concentration method; capillary bound water is water existing in the small capillary formed between particles, accounting for about 20%, separated by high-speed centrifuge, negative pressure or positive pressure filter; adsorbed water is water adsorbed on the surface of particles, accounting for about 7%, which can be removed by heating method; internal water is water existing in the interior of particles or microbial cells, accounting for about 3%, which can be removed by biological method to destroy cell membrane or by high temperature heating method or freezing method.

[0003] At present, there is a method of adding reagents to activated sludge to separate solid and liquid, so as to achieve the effect of dewatering. However, after adding reagents, the dried sludge cannot be used as fertilizer for resource utilization again, because the composition of chemical reagents pollutes the soil and groundwater, thereby causing harm to the environment.

[0004] In summary, hydraulic dewatering technology as a high-efficiency sludge dewatering method can significantly reduce the water content of sludge, reduce the volume, thereby reducing the transportation and disposal cost, and is helpful to the resource utilization of sludge. Therefore, the research on activated sludge hydraulic dewatering has important theoretical and practical application value. The activated sludge hydraulic dewatering system is used for sewage treatment to separate sludge and water. The existing sewage treatment scheme only simply performs extrusion, which has low efficiency, long interval time and easy filter cloth blockage.

[0005] Traditional activated sludge dewatering is by centrifugal separation, but it causes the sludge to block the centrifugal mesh, which needs to be cleaned regularly. Some use screw extrusion, but it increases the wear and tear with extrusion, and the falling is low. How to realize continuous work, reduce wear and tear, and improve the dewatering efficiency and improve the existing dewatering scheme become urgent technical problems to be solved.

[0006] In the activated sludge mechanical dewatering equipment, the sludge is separated from water by filter cloth, in the use process, due to the continuous dewatering of the sludge, and the sludge in the different positions of the filter cloth, the filter cloth is inclined and deviated, the filter cloth is wrinkled, and the normal transmission of the filter cloth is affected.

[0007] The negative functional group ionization in the sludge produces extracellular polymeric substance (EPS), and the substance can maintain a stable hydrated colloidal structure, thereby hindering the release of water, and if the destruction is not performed, the dewatering effect of the sludge is difficult to achieve.

[0008] At present, a method of adding a medicament in the activated sludge is adopted to separate the solid and liquid, and the dewatering effect is achieved, but after the medicament is added, the dried sludge cannot be used as a fertilizer for recycling, because the components of the chemical medicament pollute the soil and underground water, thereby causing harm to the environment. SUMMARY

[0009] The technical problem to be solved by the present application is to provide an activated sludge hydraulic dewatering system. The present application is efficient, low-energy, and uses a hydraulic equipment structure to dewater the activated sludge, further improving the dewatering efficiency; a mechanical wall breaking process technology without using a medicament is adopted to degrade the protein and polysaccharide in the EPS of the sludge, and then the binding characteristics of the EPS to water are changed. More importantly, no medicament is used, the cost is reduced, and the impact on the environment is reduced; the two-way single-cylinder pressure filtration module places the sludge in a negative pressure and sealed environment, and efficiently dewatering is achieved.

[0010] To solve the above problems, the technical solution adopted by the present application is:

[0011] In order to realize the pretreatment of the sludge entering the activated sludge dewatering machine, reduce the loss of the dewatering machine, and improve the treatment efficiency, a wall breaking assembly of an activated sludge dewatering machine is provided, the wall breaking assembly comprises a straight pipe; a first radial pipe and a second radial pipe are respectively arranged radially on the straight pipe;

[0012] The straight pipe, the second radial pipe and the first radial pipe form three coordinates perpendicular to each other.

[0013] As a further improvement of the above technical solution:

[0014] The straight pipe is arranged at the feeding side of the activated sludge machine.

[0015] In order to realize better crushing and fully break the wall, a first crushing assembly and a second crushing assembly are respectively arranged on the first radial pipe and the second radial pipe.

[0016] The first crushing assembly comprises a crushing shaft group A and a crushing shaft group C arranged in parallel in the first radial pipe;

[0017] The second crushing assembly comprises a crushing shaft group B and a crushing shaft group D arranged in parallel in the second radial pipe;

[0018] The crushing shaft group A and the crushing shaft group B are structurally identical and vertically arranged in different directions.

[0019] The crushing shaft group C and the crushing shaft group D are structurally identical and vertically arranged in different directions.

[0020] In order to facilitate disassembly and ensure high pressure work, corresponding sealing end covers are arranged on the first radial pipe and the second radial pipe;

[0021] A bearing seat A is arranged on the sealing end cover;

[0022] In order to facilitate position adjustment, a bolt A is connected to the bearing seat A and the sealing end cover port; a spring A is arranged between the bolt A and the bearing seat A;

[0023] A bearing end cover is arranged on the other port of the first radial pipe.

[0024] In order to facilitate the installation and disassembly of the bolt, the bearing end cover is in rotational positioning contact with the corresponding main shaft and / or auxiliary main shaft;

[0025] A stepped support seat is arranged on the sealing end cover;

[0026] An outer shell is connected to the support seat;

[0027] An upper cover body is connected to the outer shell;

[0028] A motor flange with a process gap is arranged on the upper cover body, and the motor flange is used to connect the shell of the motor.

[0029] In order to achieve sufficient crushing, the crushing shaft group A comprises a main shaft arranged in the bearing seat A; the main shaft is connected to the motor through a shaft coupling;

[0030] The auxiliary main shaft and the main shaft are in opposite rotation through gear meshing or in same direction rotation through chain transmission;

[0031] The main shaft has a shaft shoulder part penetrating through the bearing seat A and being positioned on the axis;

[0032] A crushing disc is arranged on the auxiliary main shaft and the main shaft respectively; a spacing sleeve is arranged between adjacent crushing discs.

[0033] The periphery of the crushing disc is distributed with a convex part; a right angle step is arranged on the front surface of the convex part and has an inclined back surface; a convex cutting piece is inlaid in the right angle step;

[0034] The two side edges and the top edge of the convex cutting piece respectively protrude from the body of the convex part.

[0035] The protruding sections of the sub-spindle are staggered with the protruding sections of the spindle member.

[0036] In order to achieve better wall breaking of the exopolysaccharide produced by ionization of the negatively charged functional groups, the distance between adjacent protruding sections is less than one millimeter.

[0037] The protruding sections are made of hard alloy and / or coated with a corrosion-resistant coating.

[0038] The mechanical wall breaking assembly of the present application is composed of a gear box, a shear wall breaking assembly cutter, a high-speed motor, etc. The wall breaking device can be provided with multiple groups, each group being composed of two sets of horizontal and vertical cutters, which form a "cross" structure in the space of the sludge conveying to maximize the wall breaking treatment of the sludge. In the same direction, the distance between the two adjacent cutters is less than one millimeter, effectively breaking the wall of the sludge.

[0039] In order to prevent wrinkles, the deviation correcting assembly includes an anti-wrinkle roller set; the anti-wrinkle roller set includes coaxially arranged first and second half shafts;

[0040] The first and second half shafts are independently rotatably arranged;

[0041] The anti-wrinkle roller set is in pressure contact with the front filter cloth;

[0042] The outer sidewalls of the first and second half shafts are conical shafts.

[0043] As a further improvement of the above technical solution:

[0044] In order to achieve power driving, a driving wheel is connected to the outer end of the second half shaft.

[0045] A driving motor member A is connected to the outer end of the first half shaft.

[0046] In order to achieve fixed support, the first and second half shafts are respectively supported on corresponding fixed racks through corresponding bearing assemblies.

[0047] A gap is provided between the first and second half shafts.

[0048] In order to achieve half shaft connection, an inner cavity A, a hollow cavity B and an outer stop C are coaxially arranged in sequence in the inner end of the first half shaft;

[0049] A second shaft end is provided at the inner end of the second half shaft, which is inserted into the hollow cavity B through the outer stop C;

[0050] A support bearing is provided on the second shaft end; the support bearing is in contact with the inner sidewall of the hollow cavity B.

[0051] In order to achieve stable support, the support bearing is at least two groups, and a spacer sleeve is provided between adjacent support bearings;

[0052] A shaft seal C is arranged between the second shaft end and the outer collar C.

[0053] In order to realize automatic monitoring, detection components are arranged on both sides of the anti-wrinkle roller group for detecting whether the filter cloth is skewed.

[0054] The detection components are photoelectric switches or infrared sensors.

[0055] The anti-wrinkle roller of the application adopts a shaft coupling at the connection with the motor, further preventing the filter cloth from being skewed due to the deviation caused by movement.

[0056] The anti-wrinkle roller group of the application is divided into two sections connected by bearings, and the power of the two sections is different, one section being driven by a servo motor and the other section being driven by a constant-speed reduction motor.

[0057] The anti-wrinkle roller group adopts a shaft coupling at the connection with the motor, further preventing the filter cloth from being skewed due to the deviation caused by movement.

[0058] On both sides of the anti-wrinkle roller group, four photoelectric switches are arranged to detect the direction of the deviation of the filter cloth and transmit signals to the PLC, which controls the servo motor according to the received signals to adjust the acceleration and deceleration to realize correction.

[0059] In order to realize automatic dehydration, a hydraulic composite module includes an extrusion frame, a lower chassis is arranged on the extrusion frame,

[0060] A lower top cylinder is arranged on the lower chassis.

[0061] An upper die hydraulic cylinder is arranged above the extrusion frame.

[0062] An opening and closing die is arranged between the upper die hydraulic cylinder and the lower top cylinder.

[0063] The opening and closing die includes a lower die arranged on the workbench of the extrusion frame and an upper die connected with the upper die hydraulic cylinder.

[0064] A middle die is arranged between the lower die and the upper die.

[0065] As a further improvement of the above technical solution:

[0066] In order to improve the dewatering performance of activated sludge and facilitate filter cloth cleaning, the filter cloth has an upper filter cloth A and a lower filter cloth B, and the filter cloth position is switched with the periodic operation of the opening and closing die.

[0067] The upper filter cloth A passes between the upper die and the middle die.

[0068] The lower filter cloth B passes between the lower die and the middle die.

[0069] A hollow cavity is arranged in the middle of the middle die.

[0070] A connecting flange group A and a connecting flange group B are arranged at both ends of the hollow cavity respectively;

[0071] The connecting flange group A and the connecting flange group B are located on both sides of the filter cloth piece;

[0072] A dehydration pressure filter cylinder is connected to the connecting flange group A through a connecting sleeve group A;

[0073] A feed pipe is connected to the connecting flange group B.

[0074] In order to realize one-way mud feeding, a support inner sleeve hole is connected to the connecting flange group B through an inner rib;

[0075] A feed check valve is arranged in the support inner sleeve hole;

[0076] The feed check valve comprises a valve rod assembly arranged in the support inner sleeve hole through a valve rod spring.

[0077] In order to increase the water passing area, an upper filter plate is arranged between the upper surfaces of the connecting flange group A and the connecting flange group B and the lower surface of the upper die piece;

[0078] A lower filter plate is arranged between the lower surfaces of the connecting flange group A and the connecting flange group B and the upper surface of the lower die piece;

[0079] The corresponding edges of the lower filter plate and the upper filter plate are sealingly attached to the corresponding surfaces of the middle die piece after the die closing.

[0080] In order to realize the formation of the extrusion space, the lower filter plate, the upper filter plate and the middle die piece are used to envelope the hollow cavity;

[0081] The lower filter plate and the upper filter plate have through holes;

[0082] An upper support plate and a lower support plate are arranged at the upper part of the upper filter plate and the lower part of the lower filter plate respectively.

[0083] In order to realize lubrication, an oil nozzle piece is arranged on the connecting flange group A, and an oil injection hole part corresponding to the oil nozzle piece is arranged on the connecting sleeve group A;

[0084] A negative pressure drainage port communicating with the hollow cavity is arranged on the upper die piece and the lower die piece.

[0085] In order to realize that the filter cloth does not cause centering deviation when it is tensioned, an upper elastic ejector pin and a lower elastic ejector pin are arranged between the upper die piece and the middle die piece and between the middle die piece and the lower die piece respectively;

[0086] A cloth pressing platform is arranged on the connecting flange group B for carrying the lower layer of filter cloth B;

[0087] An upper die closing hydraulic cylinder is connected to the upper support plate;

[0088] The workbench of the connecting frame is connected with the lower support plate;

[0089] The middle mold piece is movably arranged on the guide light rod;

[0090] The lower elastic top rod is arranged on the lower mold piece;

[0091] The lower elastic top rod acts on the lower surface of the middle mold piece.

[0092] The upper elastic top rod is arranged below the upper mold piece;

[0093] The upper elastic top rod acts on the upper surface of the middle mold piece.

[0094] The upper layer filter cloth A is located between the upper filter plate and the middle mold piece;

[0095] The lower layer filter cloth B is located between the lower filter plate and the middle mold piece;

[0096] The upper elastic top rod and the lower elastic top rod respectively abut against the upper layer filter cloth A and the lower layer filter cloth B of the filter cloth piece.

[0097] In order to realize sufficient contact, when the upper mold piece and the lower mold piece are closed, the upper elastic top rod and the lower elastic top rod are in pressure contact with the corresponding middle mold surface of the upper layer filter cloth A and the lower layer filter cloth B of the filter cloth piece.

[0098] The present application can realize automatic dewatering, continuous work, prevent blockage, good compatibility, sufficient filtration and high dewatering efficiency.

[0099] The present application mainly provides an overall protection scheme, realizes full automation through mutual cooperation of various components, cooperates with filter cloth double-sided extrusion dewatering, solves various problems in use, such as how to realize efficient extrusion dewatering, fully utilize filter cloth, reduce idle stroke and blockage and the like.

[0100] The present application protects the point that the filter cloth system completes the filter cloth from unwinding to sludge pressure filtration dewatering to carrying sludge discharge to entering the water tank for cleaning and then to winding action. The upper winding roller and the lower winding roller are arranged above and below.

[0101] On the side close to the upper winding roller, two sides of the hydraulic master cylinder are fixed with mounting plates on the mainframe frame, the two mounting plates are fixedly connected with the mechanical arm A and the mechanical arm B respectively, and one end of the mechanical arm is fixedly connected with the guide wheel A and the guide wheel B. When the filter cloth moves, the guide wheels will rotate with the filter cloth.

[0102] Further, the position of the mounting plate can be provided with a travel switch, which can be adjusted according to the actual situation. When the upper winding roller unwinds with the filter cloth, the diameter of the winding roller gradually decreases, the mechanical arm descends, when the filter cloth on the winding roller is close to the minimum, the filter cloth is prevented from being completely evacuated, the mechanical arm touches the travel switch, the filter cloth stops being evacuated, and the main machine starts to work in reverse.

[0103] The mechanical arm and guide wheel control the walking step of the filter cloth. The travel switch can be set on the mounting plate according to the actual situation. The filter cloth is pressed once, and moves forward once. According to the set step, which is about the width of the mold opening and closing, the filter cloth stops, waits for the next pressing work to be completed, and then continues to move forward, thereby solving the tensioning problem.

[0104] During the movement of the filter cloth, the brush roller is arranged to brush off the sludge adhered to the filter cloth, clean the filter cloth, prevent the filter cloth from being blocked, and affect the filter pressing effect.

[0105] Water tanks are arranged below the movement of the filter cloth on both sides. The filter cloth moves through the water tanks. The brush is arranged in the water tank for cleaning the filter cloth, preventing the filter cloth from being blocked by sludge, and affecting the filter pressing effect.

[0106] A scraper is arranged at one end of the filter cloth discharge. The spring is fixed, which is used to scrape off the sludge on the filter cloth for dewatering. The lower part is provided with a material collecting device to collect the discharged sludge.

[0107] Further, guide rollers and rubber rollers are arranged on both sides of the machine. The guide roller is used to guide the movement of the filter cloth, and the rubber roller corresponds to the filter cloth. Before the filter cloth enters the water tank, the filter cloth is extruded to extrude the water and mud on the filter cloth, and promote the cleaning work of the filter cloth in the water tank.

[0108] It should be noted that when the filter cloth penetrates the mold opening and closing, both layers of filter cloth need to contact the sludge. In the mold opening and closing, the upper filter cloth participates in the filtering work, and the lower filter cloth participates in the filtering and sludge receiving work. After the upper filter cloth is pressed, it moves forward and a brush roller is arranged near the mold opening and closing to brush off the sludge adhered to the upper filter cloth. The sludge will fall on the lower filter cloth, and the lower filter cloth will enter the mold opening and closing for dewatering work.

[0109] Further, an electromagnetic clutch is arranged on one side of the upper and lower winding rollers. The transmission torque between the motor and the winding drum is used to control the reverse movement of the upper and lower winding rollers.

[0110] Further, anti-wrinkle rollers are arranged on both sides of the main machine during the movement of the filter cloth. The anti-wrinkle rollers are thick in the middle and thin at both ends. The filter cloth passes through the rollers and is not easy to wrinkle,

[0111] Further, the anti-wrinkle rollers are divided into two sections connected by bearings. The power of the two sections is different. One section is driven by a servo motor, and the other section is driven by a constant speed reducer.

[0112] The anti-wrinkle roller and the motor are connected by a shaft coupling to further prevent the filter cloth from deviating due to movement.

[0113] On both sides of the anti-wrinkle roller, four light-sensitive switches are arranged on the whole machine to detect and correct the deviation of the filter cloth.

[0114] The present application realizes continuous dewatering, the upper filter cloth A and the lower filter cloth B both dewater, realize double-side dewatering, increase the dewatering area, realize the full use of the cloth travel, avoid the idle travel. Its reasonable arrangement realizes the full collection of sludge, through the up-and-down space arrangement, compared with the ring-shaped cloth, the filter cloth dewatering travel can be large, and it is not necessary to cooperate with the continuous adjustment of the tensioning amount. BRIEF DESCRIPTION OF DRAWINGS

[0115] Figure 1 It is the main rack using structure schematic diagram of the present application.

[0116] Figure 2 It is the pretreatment assembly structure schematic diagram of the present application.

[0117] Figure 3 It is the upper winding roller using structure schematic diagram of the present application.

[0118] Figure 4 It is the guide wheel assembly A structure schematic diagram of the present application.

[0119] Figure 5 It is the brush roller D structure schematic diagram of the present application.

[0120] Figure 6 It is the filter cloth piece using structure schematic diagram of the present application.

[0121] Figure 7 It is the upper mold hydraulic cylinder structure schematic diagram of the present application.

[0122] Figure 8 It is the lower mold piece structure schematic diagram of the present application.

[0123] Figure 9 It is the negative pressure drainage port structure schematic diagram of the present application.

[0124] Figure 10 It is the extrusion rack structure schematic diagram of the present application.

[0125] Figure 11 It is the anti-wrinkle roller group using structure schematic diagram of the present application.

[0126] Figure 12 It is the structure schematic diagram of the present application.

[0127] Figure 13 It is the structure schematic diagram of the present application.

[0128] Figure 14 It is the straight-through pipe using structure schematic diagram of the present application.

[0129] Figure 15 It is the bearing seat A structure schematic diagram of the present application.

[0130] Figure 16 Figure 1 is a schematic view of the main shaft structure of the present application.

[0131] Wherein: 101, straight-through pipe; 102, first radial pipe; 103, second radial pipe; 104, first crushing assembly; 105, second crushing assembly; 106, crushing shaft group A; 107, crushing shaft group C; 108, crushing shaft group B; 109, crushing shaft group D; 110, bearing seat A; 111, bolt A; 112, spring A; 113, support seat; 114, outer shell; 115, sealing end cover; 116, upper cover body; 117, motor flange; 118, process gap; 119, shaft coupling; 120, sub-spindle; 121, spindle; 122, shaft shoulder; 123, crushing disc; 124, spacer sleeve; 125, protruding part; 126, inclined back; 127, protruding slice; 128, right angle step. 200, anti-wrinkle roller group; 201, first half shaft; 202, second half shaft; 203, drive wheel; 204, drive motor part A; 205, bearing assembly; 206, gap part; 207, inner cavity A; 208, hollow cavity B; 209, outer stop C; 210, second shaft end; 211, support bearing; 212, spacer shaft sleeve; 213, shaft seal C; 214, detection component. 301, filter cloth part; 302, extrusion frame; 303, lower chassis; 304, lower top cylinder part; 305, upper mold closing hydraulic cylinder; 306, dehydration filter pressing cylinder; 307, upper support plate; 308, feeding pipe; 309, upper mold part; 310, upper elastic ejector rod; 311, lower support plate; 312, upper filter plate; 313, lower mold part; 314, lower elastic ejector rod; 315, connecting sleeve part A; 316, lower filter plate; 317, hollow cavity; 318, connecting flange group A; 319, oil nozzle part; 320, guide light pole; 321, connecting flange group B; 322, support inner sleeve hole; 323, valve rod assembly; 324, valve rod spring; 325, cloth pressing platform; 326, oil injection hole part; 327, negative pressure drainage port; 328, middle mold part; 329, lower connecting frame. 301, filter cloth part; 401, upper winding roller; 402, first guide roller; 403, upper row of direction-changing rollers; 404, first lower end roller A; 405, brush roller C; 406, lower row of input rollers; 407, lower row of entry guide rollers; 408, deviation correction assembly; 409, discharge side; 410, dehydration station; 411, lower row of output direction-changing rollers; 412, scraper assembly; 413, brush roller A; 414, brush roller B; 415, rubber roller group; 416, guide roller group part; 417, second water tank; 418, second lower end roller B; 419, brush roller D; 420, lower winding roller; 421, first water tank; 422, elastic mechanical arm; 423, guide wheel B; 424, guide wheel assembly A. 501, main body frame; 502, pretreatment assembly; 503, pump station; 504, pipeline group; 505, shroud group; 506, brush motor; 507, lower control motor; 508, upper control motor. DETAILED DESCRIPTION

[0132] As Figures 1-16 The activated sludge hydraulic dewatering system of the embodiment comprises a main frame 501; and is provided with:

[0133] a filter cloth module for unidirectional output of filtered water and carrying forward of sludge;

[0134] a hydraulic composite module for mold closing and extrusion dewatering of sludge wrapped by upper and lower filter cloths;

[0135] a dewatering station 410 provided on the main frame 501;

[0136] the hydraulic composite module is at the dewatering station 410;

[0137] the filter cloth module comprises a filter cloth piece 301 provided on the main frame 501;

[0138] the main frame 501 is provided with an upper winding roller 401 and a lower winding roller 420;

[0139] the filter cloth piece 301 comprises upper filter cloth A and lower filter cloth B connected unidirectionally;

[0140] at the dewatering station 410, the lower surface of the upper filter cloth A and the upper surface of the lower filter cloth B are in contact with sludge at the same time;

[0141] after dewatering, the upper surface of the lower filter cloth B carries forward sludge.

[0142] the filter cloth piece 301 is arranged between the upper winding roller 401 and the lower winding roller 420;

[0143] the upper winding roller 401 and the lower winding roller 420 are arranged in an upper-lower mode;

[0144] the main frame 501 is provided with a lower control motor 507 and an upper control motor 508;

[0145] the upper winding roller 401 is in transmission connection with the upper control motor 508;

[0146] the lower winding roller 420 is in transmission connection with the lower control motor 507; and a pipeline group 504 is arranged on the first water tank 421 and the second water tank 417.

[0147] a pump station 503 is arranged on one side of the main frame 501;

[0148] a shroud group 505 is arranged on the main frame 501;

[0149] a plurality of brush motors 506 are arranged on the main frame 501 for driving corresponding brush rollers.

[0150] The hydraulic composite module comprises an extrusion frame 302 arranged as a part of the main frame 501; a deviation rectifying assembly 408, a filter cloth module, and a filter cloth 301 deviation rectifying assembly; a pretreatment assembly 502 connected to the hydraulic composite module, the pretreatment assembly 502 comprising a wall breaking assembly connected to the feed pipe 308, for pretreating the sludge.

[0151] As shown in the drawings, the activated sludge dewatering filter cloth module of the embodiment comprises a filter cloth 301 arranged on the frame; Figures 1-5

[0152] An upper winding roller 401 and a lower winding roller 420 are arranged on the frame;

[0153] The filter cloth 301 comprises an upper filter cloth A and a lower filter cloth B connected in one direction;

[0154] The filter cloth 301 is arranged between the upper winding roller 401 and the lower winding roller 420;

[0155] The upper winding roller 401 and the lower winding roller 420 are arranged in an upper-lower manner;

[0156] A dewatering station 410 is arranged on the frame;

[0157] At the dewatering station 410, the lower surface of the upper filter cloth A and the upper surface of the lower filter cloth B are in contact with the sludge at the same time;

[0158] After dewatering, the upper surface of the lower filter cloth B carries the sludge forward.

[0159] An upgoing change direction roller 403 and a downgoing output change direction roller 411 are arranged on both sides of the dewatering station 410;

[0160] The output end of the upper filter cloth A is connected to the input end of the lower filter cloth B through the upgoing change direction roller 403 and the downgoing entry guide roller 407;

[0161] The discharge side 409 of the lower filter cloth B bypasses the downgoing output change direction roller 411 to the lower winding roller 420.

[0162] A first guide roller 402 is arranged between the upper winding roller 401 and the input end of the upper filter cloth A.

[0163] A first water filtering station is arranged between the upgoing change direction roller 403 and the downgoing entry guide roller 407;

[0164] A first water tank 421 is arranged at the first water filtering station;

[0165] A first lower end roller A 404 is arranged in the first water tank 421;

[0166] ​The filter cloth 301 passes through the uplink change direction roller 403, then descends through the first lower end roller A 404, and then rises through the downlink entry guide roller 407.

[0167] The brush roller C 405 is arranged above the first lower end roller A 404.

[0168] The brush roller C 405 is located inside the wrap angle of the filter cloth 301 and simultaneously contacts the corresponding surface of the wrap angle of the filter cloth 301.

[0169] The downlink input roller 406 is arranged on the other side of the downlink entry guide roller 407, and the downlink entry guide roller 407 simultaneously contacts the corresponding surface of the filter cloth 301.

[0170] The scraper group 412 is arranged below the downlink output change direction roller 411 and is used to obliquely contact the lower surface of the filter cloth 301 after the change of direction.

[0171] The brush roller A 413 and the brush roller B 414 are arranged below the downlink output change direction roller 411 and are used to obliquely contact the lower surface of the filter cloth 301 after the change of direction.

[0172] The scraper group 412, the brush roller A 413, and the brush roller B 414 are arranged in sequence.

[0173] The brush density of the brush roller A 413 is less than the brush density of the brush roller B 414.

[0174] The second lower end roller B 418 is arranged between the downlink output change direction roller 411 and the lower winding roller 420, and the second lower end roller B 418 is immersed in the second water tank 417.

[0175] The brush roller D 419 is arranged outside the second water tank 417 and contacts the filter cloth 301.

[0176] The guide roller group 416 and the rubber roller group 415 are arranged between the downlink output change direction roller 411 and the second lower end roller B 418 and are used to change the direction of the filter cloth 301.

[0177] The upper filter cloth A and the lower filter cloth B are respectively matched with the deviation correction assembly 408.

[0178] The guide wheel assembly A 424 and the guide wheel assembly B are arranged on the upper winding roller 401 and the upper surface of the output end of the upper filter cloth A, respectively.

[0179] The guide wheel assembly A 424 and the guide wheel assembly B are swingably arranged.

[0180] The travel switch is arranged at the swing setting position.

[0181] The guide wheel assembly A 424 and the guide wheel assembly B include a flexible mechanical arm 422 articulated at one end; a guide wheel B 423 in rolling contact with the filter cloth piece 301 is arranged at the cantilever end of the flexible mechanical arm 422.

[0182] As a specific working principle, the lower surface of the upper filter cloth A and the upper surface of the lower filter cloth B are simultaneously in contact with the sludge through hydraulic or mechanical control; the sludge is subjected to extrusion dewatering.

[0183] When the dewatering is completed, the sludge carried on the upper surface of the lower filter cloth B is advanced to the next station, thereby realizing dewatering operation of the next section of the filter cloth piece 301; the output amount of the upper winding roller 401 is controlled by the guide wheel A, and the walking step length of the filter cloth is controlled by the guide wheel B 423. The guide wheel B 423 can be equipped with a Hall sensor.

[0184] In the first water tank 421, the lower surface of the upper filter cloth A is cleaned twice by the brush roller C 405.

[0185] The filter cloth piece 301 is guided and output by the downward input roller 406 and the downward guide roller 407; and is subjected to secondary utilization.

[0186] The upper surface of the lower filter cloth B is output through the discharge side 409, passes through the downward output deflection roller 411, is deflected, passes through the scraper group 412, the brush roller A 413, and the brush roller B 414 for three times of cleaning treatment, so as to reduce the sludge falling into the water tank.

[0187] The second lower end roller B 418 is deflected, cleaned by the brush roller D 419, and wound by the lower winding roller 420; when the winding amount is greater than a set threshold value, the lower winding roller 420 and the upper winding roller 401 are simultaneously reversed to realize reverse winding of the filter cloth piece 301, which can be returned in an idle stroke or can be returned to work.

[0188] As an embodiment, as shown in Figures 1-10 The active sludge dewatering hydraulic composite module of the embodiment includes an extrusion frame 302 as a support frame, and the structure is not limited to the limitation of the drawings; the extrusion frame 302 is connected with a lower chassis 303;

[0189] The lower chassis 303 is provided with a lower top cylinder 304.

[0190] The extrusion frame 302 is provided with an upper mold closing hydraulic cylinder 305, which can be an electric cylinder or a hydraulic cylinder or a screw rod linear driving mode; the upper mold closing hydraulic cylinder 305 realizes mold closing and mold opening actions.

[0191] An opening and closing mold is arranged between the upper mold closing hydraulic cylinder 305 and the workbench of the extrusion frame 302.

[0192] The opening and closing mold comprises a middle mold piece 313 fixed on the workbench of the extrusion frame 302 and connected with the lower end of the upper end top cylinder piece 304, and an upper mold piece 309 connected with the upper mold opening and closing hydraulic cylinder 305;

[0193] A middle mold piece 328 is arranged between the lower mold piece 313 and the upper mold piece 309, and can be arranged to be up and down floating, so as to realize extrusion dewatering.

[0194] For the convenience of description, the filter cloth piece 301 has an upper layer filter cloth A and a lower layer filter cloth B;

[0195] Specifically, the upper layer filter cloth A passes through between the upper mold piece 309 and the middle mold piece 328;

[0196] The lower layer filter cloth B passes through between the lower mold piece 313 and the middle mold piece 328.

[0197] A hollow cavity 317 is arranged in the middle of the middle mold piece 328, for accumulating sludge;

[0198] A connecting flange group A318 and a connecting flange group B321 are arranged at both ends of the hollow cavity 317 respectively, so as to realize connection;

[0199] The connecting flange group A318 and the connecting flange group B321 are located on both sides of the filter cloth piece 301;

[0200] A dewatering filter cylinder 306 is connected to the connecting flange group A318 through a connecting sleeve piece A315, so as to realize extrusion dewatering;

[0201] A feeding pipe 308 is connected to the connecting flange group B321, so as to realize sludge feeding.

[0202] A support inner sleeve hole 322 is connected to the connecting flange group B321 through an inner rib, so as to perform center support.

[0203] A feeding check valve is arranged in the support inner sleeve hole 322, which realizes one-way control.

[0204] The feeding check valve comprises a valve rod assembly 323 arranged in the support inner sleeve hole 322 through a valve rod spring 324, which prevents backflow and sealing through the valve rod.

[0205] In order to fully utilize space dewatering, an upper filter plate 312 is arranged between the upper surfaces of the connecting flange group A318 and the connecting flange group B321 and the lower surface of the upper mold piece 309;

[0206] In order to fully utilize space dewatering, a lower filter plate 316 is arranged between the lower surfaces of the connecting flange group A318 and the connecting flange group B321 and the upper surface of the lower mold piece 313;

[0207] The lower filter plate 316 and the upper filter plate 312 are connected with the corresponding surfaces of the middle mold piece 328, so as to form a closed space.

[0208] The lower filter plate 316, the upper filter plate 312 and the middle mold piece 328 are used to envelope the hollow cavity 317.

[0209] The lower filter plate 316 and the upper filter plate 312 have through holes.

[0210] An upper support plate 307 and a lower support plate 311 are respectively arranged on the upper part of the upper filter plate 312 and the lower part of the lower filter plate 316.

[0211] In order to lubricate, an oil nozzle piece 319 is arranged on the connecting flange group A 318, and an oil injection hole part 326 corresponding to the oil nozzle piece 319 is arranged on the connecting sleeve group A 315.

[0212] In order to improve the drainage efficiency, a negative pressure drainage port 327 communicating with the hollow cavity 317 is arranged on the upper mold piece 309 and the lower mold piece 313.

[0213] In order to prevent the filter cloth from being unable to be clamped and fastened when the mold is closed, and also to realize the expansion of the filter cloth, an upper elastic ejector rod 310 and a lower elastic ejector rod 314 are respectively arranged between the upper mold piece 309 and the middle mold piece 328 and between the middle mold piece 328 and the lower mold piece 313.

[0214] A cloth pressing platform 325 is arranged on the connecting flange group B 321, which is used to support the lower layer of filter cloth B.

[0215] The upper mold closing hydraulic cylinder 305 is connected with the upper support plate 307.

[0216] The workbench of the extruder frame 302 is connected with the lower support plate 311.

[0217] A guide light rod 320 is arranged at the lower end of the middle mold piece 328, so as to realize the movable movement of the middle mold piece 328.

[0218] The lower elastic ejector rod 314 is arranged on the lower mold piece 313, so that the lower elastic ejector rod 314 is attached to the filter cloth piece 301 between the lower surface of the middle mold piece 328.

[0219] The upper layer of filter cloth A is located between the upper filter plate 312 and the middle mold piece 328, and the lower line segment is located between the lower filter plate 316 and the middle mold piece 328, so as to form a space wrapping the sludge.

[0220] The upper elastic ejector rod 310 and the lower elastic ejector rod 314 respectively abut against the upper layer of filter cloth A and the lower layer of filter cloth B of the filter cloth piece 301.

[0221] When the upper mold piece 309 and the lower mold piece 313 are closed, the upper elastic ejector rod 310 and the lower elastic ejector rod 314 are respectively in pressure contact with the upper filter cloth A and the lower filter cloth B of the filter cloth piece 301 and the surface of the corresponding middle mold piece 328.

[0222] Embodiment 2, as a specific application, such as Figures 1-4 The hydraulic system: divided into three hydraulic cylinders respectively driven,

[0223] The hydraulic master cylinder controls the opening and closing of the two-way filter press mold, and the upper mold piece 309, the middle mold piece 328 and the lower mold piece 313 are closed and opened to form a closed chamber. In the inner cavity of the upper mold piece 309 and the lower mold piece 313, there are steel plates with water-permeable holes (i.e. upper filter plate 312 and lower filter plate 316),

[0224] One end of the feed pipe 308 is connected to one side of the middle mold piece 328 through a flange, and a feed check valve is arranged at the connection position. The valve is provided with a compression spring. Because the equipment is connected to a negative pressure station, the drain pipe and the negative pressure pipeline are one pipeline.

[0225] During operation, the feed pipe pushes open the feed check valve to transport the sludge into the mold. The feed check valve is fixedly connected to the flange at one end of the opening and closing mold.

[0226] Further, the other side of the middle mold piece 328 is connected to the dehydration filter pressing piston rod through a flange, and a flat surface is arranged at the top of the flange at both ends. The upper filter cloth penetrates between the upper mold and the middle mold, and the lower filter cloth penetrates between the middle mold and the lower mold. From top to bottom, the order is: upper mold, filter cloth, middle mold, filter cloth, and lower mold. The upper mold has elastic ejector rods on both sides. When the mold is compressed, the elastic ejector rods press the filter cloth against the flat surface, tighten the filter cloth, and prevent the filter cloth from shifting when the mold is closed.

[0227] Further, after the mold is closed, the air and sludge water in the mold are discharged through the filter holes of the filter cloth and the filter plate. There is a negative pressure space between the upper mold, the lower mold and the mold cavity, and the sludge water is discharged through the negative pressure drain port of the upper and lower molds.

[0228] The advantage of this scheme is that the hydraulic opening and closing mold forms a closed space, and the sludge can be effectively compressed and dewatered by the dehydration filter pressing cylinder.

[0229] (2) Dehydration extrusion oil cylinder: composed of a hydraulic source provided by the hydraulic system and a dehydration piston rod. After the mold is closed, the dehydration extrusion piston rod advances towards the closed mold cavity. After the mold is closed, the sludge is compressed and dewatered to a certain extent. When the pressure in the mold cavity decreases, the piston rod continues to advance to further extrude and dewater the sludge, and the water is discharged through the drain hole. After the mold is opened, the dewatered sludge is placed on the filter cloth, and the filter cloth moves to drive the sludge out of the mold.

[0230] At the beginning, the mold is opened, the extrusion piston rod is connected at the flange, the piston rod is not completely out of the cavity mold at one end, the piston rod cone end passes through the connecting flange and is fixed with the middle film, so that the middle mold opens and closes and drives the piston rod to rise and fall, and when the mold is closed, the pressure decays, the piston rod advances to extrude and dewater the sludge.

[0231] Considering that the dehydration piston advances or retreats to cause the gravity to be biased to one side, the piston rod can be considered to be fixed with the main body by a spring on the side not entering the mold, to prevent the problem of the piston rod retreating after dewatering.

[0232] The piston rod and the connecting flange are connected with rubber sealing rings and Y-shaped sealing rings to ensure tightness and sealing of the mold cavity, and the connecting flange is provided with an oil injection hole to facilitate lubrication of the extrusion piston rod during operation.

[0233] A lower top cylinder is arranged at the lower part of the main body, a top plate is driven by the lower top cylinder, and the top plate is connected with the middle mold, when the mold is closed, the upper mold is driven downward by the hydraulic main cylinder, the top plate is driven downward by the lower top cylinder, and the middle mold is driven downward to complete the closing of the mold.

[0234] As the working principle, first, the sludge enters the hollow cavity 317 through the feeding pipe 308 and is received by the lower filter cloth B of the filter cloth 301; then, the lower top cylinder 304 and the upper mold closing hydraulic cylinder 305 drive the floating middle mold and the upper mold 309 and the lower mold 313 to close, and at the same time, the lower elastic top rod 314 and the upper elastic top rod 310 realize the positioning of the filter cloth 301; secondly, the dehydration filter pressing cylinder 306 extends into the hollow cavity 317 to extrude and dewater, after dewatering, the mold is opened, and the filter cloth 301 moves forward, and the lower filter cloth B sends out the dewatered sludge.

[0235] As shown in Figure 1-1 3, the sludge hydraulic dewatering filter cloth servo differential correction assembly of the embodiment includes an anti-wrinkle roller group 200; the anti-wrinkle roller group 200 includes coaxially arranged first half shaft 201 and second half shaft 202;

[0236] The first half shaft 201 and the second half shaft 202 are independently rotatably arranged;

[0237] The anti-wrinkle roller group 200 is in pressure contact with the forward filter cloth;

[0238] The second half shaft 202 is connected with a driving wheel 203 at the outer end.

[0239] The first half shaft 201 is connected with a driving motor A 204 at the outer end.

[0240] The first half shaft 201 and the second half shaft 202 are respectively supported on the corresponding fixed frame through the corresponding bearing assembly 205.

[0241] A gap part 206 is arranged between the first half shaft 201 and the second half shaft 202.

[0242] An inner cavity A 207, a middle cavity B 208 and an outer stop C 209 are coaxially arranged in sequence at the inner end of the first half shaft 201.

[0243] A second shaft end 210 is arranged at the inner end of the second half shaft 202 and inserted into the middle cavity B 208 through the outer stop C 209.

[0244] A support bearing 211 is arranged on the second shaft end 210 and in contact with the inner side wall of the middle cavity B 208.

[0245] The support bearing 211 is at least two groups, and a spacing sleeve 212 is arranged between adjacent support bearings 211.

[0246] Detection components 214 are arranged on both sides of the wrinkle prevention roller group 200 and used for detecting whether the filter cloth is skewed.

[0247] The detection components 214 are photoelectric switches or infrared sensors.

[0248] As the working principle, when the filter cloth passes through the wrinkle prevention roller group 200, the filter cloth is detected by the detection components 214, and when wrinkles occur, if the first half shaft is skewed, the first half shaft 201 is driven to accelerate or decelerate rotation, so as to realize stretching. The second half shaft is the same.

[0249] On both sides of the main machine, the wrinkle prevention roller is arranged in the process of filter cloth movement, and the wrinkle prevention roller is thick in the middle and thin at both ends. The filter cloth is not easy to wrinkle when passing through the roller.

[0250] When the skew is found, the speed difference of the two half shafts is adjusted to realize automatic correction.

[0251] Therefore, the present application can realize deviation correction, wrinkle prevention and automatic stretching after wrinkle occurrence.

[0252] As shown in Figure 1-1 6, the wall breaking assembly of the activated sludge dewatering machine of the present embodiment comprises a straight-through pipe 101; a first radial pipe 102 and a second radial pipe 103 are radially arranged on the straight-through pipe 101, respectively; the straight-through pipe 101, the second radial pipe 103 and the first radial pipe 102 form three coordinates X-axis-Y-axis-Z-axis perpendicular to each other.

[0253] The straight-through pipe 101 is arranged at the feeding side of the activated sludge machine.

[0254] A first crushing assembly 104 and a second crushing assembly 105 are arranged on the first radial pipe 102 and the second radial pipe 103, respectively.

[0255] The first pulverizing assembly 104 comprises a pulverizing shaft group A 106 and a pulverizing shaft group C 107 arranged in parallel in the first radial pipe 102;

[0256] The second pulverizing assembly 105 comprises a pulverizing shaft group B 108 and a pulverizing shaft group D 109 arranged in parallel in the second radial pipe 103;

[0257] The pulverizing shaft group A 106 and the pulverizing shaft group B 108 are structurally identical and perpendicular in direction;

[0258] The pulverizing shaft group C 107 and the pulverizing shaft group D 109 are structurally identical and perpendicular in direction.

[0259] Corresponding sealing end covers 115 are arranged on the first radial pipe 102 and the second radial pipe 103 respectively;

[0260] Bearing seats A 110 are arranged on the sealing end covers 115;

[0261] Bolts A 111 are connected to the bearing seats A 110 and the sealing end covers 115 at the ports; springs A 112 are arranged between the bolts A 111 and the bearing seats A 110;

[0262] Bearing end covers are arranged at the other ports of the first radial pipe 102.

[0263] The bearing end covers are rotationally positioned and contacted with corresponding main shaft members 121 and / or auxiliary main shafts 120;

[0264] Step-shaped support seats 113 are arranged on the sealing end covers 115;

[0265] Housing bodies 114 are connected to the support seats 113;

[0266] Upper cover bodies 116 are connected to the housing bodies 114;

[0267] Motor flanges 117 with process notches 118 are arranged on the upper cover bodies 116, and the motor flanges 117 are used to connect the housings of motors.

[0268] The pulverizing shaft group A 106 comprises main shaft members 121 arranged in the bearing seats A 110; the main shaft members 121 are connected to the motors through couplings 119;

[0269] The auxiliary main shafts 120 are rotationally positioned opposite to the main shaft members 121 through gear engagement or rotationally positioned in the same direction through chain transmission;

[0270] The main shaft members 121 have shaft shoulder portions 122 passing through the bearing seats A 110 and being positioned on the axes;

[0271] The pulverizing disc 123 is arranged on the sub-spindle 120 and the spindle 121 respectively.

[0272] The convex part 125 is distributed around the periphery of the pulverizing disc 123, and the right-angle step 128 is arranged on the front face of the convex part 125 and has the inclined back face 126; the convex slice 127 is inlaid in the right-angle step 128.

[0273] The two side edges and the top edge of the convex slice 127 respectively project from the body of the convex part 125.

[0274] The convex slice 127 of the sub-spindle 120 is staggered with the convex slice 127 of the spindle 121.

[0275] The interval between the adjacent convex slices 127 is less than one millimeter.

[0276] The convex slice 127 is made of hard alloy and / or coated with an anti-corrosion coating.

[0277] The wall breaking device is connected with the feeding pipe, the sludge material is transported from the raw material bin (not shown in the figure, a conventional bin) through the feeding pipe, the feeding pipe is connected with the connecting pipe of the wall breaking device, the wall breaking device rotates at high speed, and the sludge material passes through the wall breaking device at the same time, the wall breaking device is arranged in a transverse and longitudinal structure, and the maximum wall breaking treatment of the sludge in the pipe is ensured. The wall breaking device can be provided in multiple groups.

[0278] The mechanical wall breaking combination is composed of a gear box, a shearing wall breaking combination cutter and a high-speed motor. The wall breaking device can be provided in multiple groups, each group is composed of two groups of transverse and longitudinal cutters, and the action is to form a "cross" structure in the space of the sludge material to maximize the wall breaking treatment of the sludge. In the same direction, the interval between the adjacent two cutters is less than one millimeter, and the sludge is effectively subjected to wall breaking treatment.

[0279] The present application realizes the passing of sludge through the straight-through pipe 101, realizes the processing in two directions through the first radial pipe 102, the first crushing assembly 104 in the second radial pipe 103, the second crushing assembly 105, the crushing shaft group A 106, the crushing shaft group C 107, the crushing shaft group B 108, and the crushing shaft group D 109 respectively carry out the roller, realize the efficient crushing processing, realize the connection and height position adjustment of the bearing seat A 110 through the bolt A 111 and the spring A 112, the present application is the display sealing ring, bearing and other conventional parts. The support seat 113, the outer shell 114, the sealing end cover 115, the upper cover body 116, the motor flange 117 realize the external driving connection, realize the power transmission through the outer end support, improve the stress effect, the process gap 118 is convenient for disassembling the bolt, the coupling 119 realizes the power transmission, the sub-spindle 120, the spindle 121 realizes the rotary drive, the shaft shoulder part 122 realizes the axis positioning, the crushing disc 123 carries out the crushing operation, the interval sleeve 124 preferably adjusts the axis gap, the convex part 125 realizes the crushing, the inclined back 126 reduces the resistance, the convex slice 127 realizes the fixation through the right angle step 128, carries out the three-face crushing and extrusion.

[0280] The present application is fully described in order to more clearly disclose, and the prior art is not enumerated one by one. Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and not limited thereto; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; as the person skilled in the art combines the technical solutions of the present application, it is obvious. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the present application. The technical contents not described in the present application are all known technologies.

Claims

1. An activated sludge hydraulic dewatering system, characterized by: The utility model relates to a sludge dewatering machine, including main body frame (501), be provided with on main body frame (501): Filter cloth module, one -way output filter water, and carry sludge forward; Hydraulic composite module, for closing, through upper and lower filter cloth commonly wrapped sludge and carries out extrusion dewatering; Dewatering station (410), be provided with on main body frame (501); Hydraulic composite module is at dewatering station (410); Filter cloth module includes filter cloth piece (301) setting on main body frame (501); Be provided with on main body frame (501) upper winding roller (401) and lower winding roller (420); Filter cloth piece (301) includes unidirectionally connected upper layer filter cloth A and lower layer filter cloth B; In dewatering station (410), the lower surface of upper layer filter cloth A and the upper surface of lower layer filter cloth B contact sludge simultaneously; After dewatering, the upper surface of lower layer filter cloth B carries sludge forward; On upper winding roller (401) and upper layer filter cloth A output end upper surface respectively set up the guide wheel assembly A (424) and guide wheel assembly B of same structure; Guide wheel assembly A (424) and guide wheel assembly B swing setting; Setting travel switch in swing setting position; Guide wheel assembly A (424) and guide wheel assembly B include the elastic mechanical arm (422) of one end articulation;Setting guide wheel B (423) on the cantilever end of elastic mechanical arm (422) with filter cloth piece (301) rolling contact; Setting pipe group (504) on first water tank (421) and second water tank (417) The detection component (214) is distributed on both sides of the anti -crease roller group (200) for detecting whether the filter cloth is deflected, and the detection component (214) is a photoelectric switch or an infrared sensor. The pretreatment assembly (502) is connected to the hydraulic composite module, and the pretreatment assembly (502) comprises a wall breaking assembly connected to the feed pipe (308) for pretreating the sludge. The wall breaking assembly comprises a straight-through pipe (101), and first and second radial pipes (102 and 103) are respectively arranged radially on the straight-through pipe (101). The straight-through pipe (101), the second radial pipe (103), and the first radial pipe (102) form three coordinates perpendicular to each other along the X-axis, the Y-axis, and the Z-axis, and the straight-through pipe (101) is arranged on the feed side of the activated sludge machine. The first pulverizing assembly (104) comprises pulverizing shaft groups A (106) and C (107) arranged in parallel in the first radial pipe (102). The second pulverizing assembly (105) comprises pulverizing shaft groups B (108) and D (109) arranged in parallel in the second radial pipe (103). The pulverizing shaft groups A (106) and B (108) are structurally identical and perpendicular to each other. The deviation rectifying assembly (408) is matched with the filter cloth module to rectify the deviation of the filter cloth piece (301). The deviation rectifying assembly (408) comprises an anti-wrinkle roller group (200), and the anti-wrinkle roller group (200) comprises coaxially arranged first and second half shafts (201 and 202). The first and second half shafts (201 and 202) are independently rotatably arranged. The crease preventing roller group (200) is in pressure contact with the front moving filter cloth; The outer side walls of the first half shaft (201) and the second half shaft (202) are both conical shafts; The upper layer filter cloth A passes between the upper die part (309) and the middle die part (328); The lower layer filter cloth B passes between the lower die part (313) and the middle die part (328); The hydraulic composite module comprises an extrusion frame (302) arranged as part of the main frame (501); a lower chassis (303) is arranged on the extrusion frame (302); A lower top cylinder part (304) is arranged on the lower chassis (303); An upper die hydraulic cylinder (305) is arranged above the extrusion frame (302); An opening and closing die is arranged between the upper die hydraulic cylinder (305) and the workbench of the extrusion frame (302); The opening and closing die comprises a middle die part (328) arranged on the extrusion frame (302) and connected with the lower top cylinder part (304) at the lower end, and an upper die part (309) connected with the upper die hydraulic cylinder (305); A lower die part (313) is arranged below the middle die part (328).

2. The activated sludge hydraulic dewatering system of claim 1, wherein: The filter cloth part (301) is arranged between the upper winding roller (401) and the lower winding roller (420); The upper winding roller (401) and the lower winding roller (420) are arranged in a vertical manner; A lower control motor (507) and an upper control motor (508) are arranged on the main frame (501); The upper winding roller (401) is drivingly connected with the upper control motor (508); The lower winding roller (420) is drivingly connected with the lower control motor (507).

3. The activated sludge hydraulic dewatering system of claim 2, wherein: An upper travel direction changing roller (403) and a lower travel output direction changing roller (411) are arranged on both sides of the dewatering station (410); The upper layer filter cloth A output end passes through the upper travel direction changing roller (403) and the lower travel entering guide roller (407), and is connected with the lower layer filter cloth B input end; The lower layer filter cloth B discharge side (409) passes through the lower travel output direction changing roller (411) to the lower winding roller (420) A first guide roller (402) is arranged between the upper winding roller (401) and the upper layer filter cloth A input end; A first water filtering station is arranged between the upper travel direction changing roller (403) and the lower travel entering guide roller (407); A first water tank (421) is arranged in the first water filtering station; A first lower end roller A (404) is arranged in the first water tank (421); The filter cloth part (301) passes through the upper travel direction changing roller (403), descends through the first lower end roller A (404), and then rises through the lower travel entering guide roller (407); A brush roller C (405) is arranged above the first lower end roller A (404); The brush roller C (405) is located inside the wrap angle of the filter cloth part (301), and simultaneously contacts the corresponding surface of the wrap angle of the filter cloth part (301); A lower travel input roller (406) is arranged on the other side of the lower travel entering guide roller (407); the lower travel entering guide roller (407) and the lower travel input roller (406) simultaneously contact the corresponding surface of the filter cloth part (301); A scraper group (412) is arranged below the lower travel output direction changing roller (411), and is used for obliquely contacting the lower surface of the filter cloth part (301) after the change of direction; A brush roller A (413) and a brush roller B (414) are arranged below the downward output change direction roller (411) and are used to be in oblique contact with the lower surface of the filter cloth (301) after being changed direction; The scraper group (412), the brush roller A (413) and the brush roller B (414) are sequentially arranged; The brush density of the brush roller A (413) is less than the brush density of the brush roller B (414); A second lower end roller B (418) is arranged between the downward output change direction roller (411) and the lower winding roller (420) and is immersed in the second water tank (417); A brush roller D (419) is arranged outside the second water tank (417) and is in contact with the filter cloth (301); A guide roller group (416) and a rubber roller group (415) are arranged between the downward output change direction roller (411) and the second lower end roller B (418) and are used to change the direction of the filter cloth (301); The upper filter cloth A and the lower filter cloth B are respectively matched with a deviation rectifying assembly (408).

4. The activated sludge hydraulic dewatering system of claim 1, wherein: A pump station (503) is arranged on one side of the main body rack (501); A protective cover group (505) is arranged on the main body rack (501); A plurality of brush motors (506) are arranged on the main body rack (501) and are used to drive corresponding brush rollers.

5. The activated sludge hydraulic dewatering system of claim 4, wherein: A hollow cavity (317) is arranged in the middle of the middle mold (328); A connecting flange group A (318) and a connecting flange group B (321) are respectively arranged at two ends of the hollow cavity (317); The connecting flange group A (318) and the connecting flange group B (321) are located on two sides of the filter cloth (301); A dehydration pressure filter cylinder (306) is connected to the side of the connecting flange group A (318) through a connecting sleeve A (315); A feed pipe (308) is connected to the side of the connecting flange group B (321); A support inner sleeve hole (322) is connected to the connecting flange group B (321) through an inner rib; A feed back valve is arranged in the support inner sleeve hole (322); The feed back valve comprises a valve rod assembly (323) arranged in the support inner sleeve hole (322) through a valve rod spring (324); An upper filter plate (312) is arranged between the upper surfaces of the connecting flange group A (318) and the connecting flange group B (321) and the lower surface of the upper mold (309); A lower filter plate (316) is arranged between the lower surfaces of the connecting flange group A (318) and the connecting flange group B (321) and the upper surface of the lower mold (313); Corresponding edges of the lower filter plate (316) and the upper filter plate (312) are connected to corresponding surfaces of the middle mold (328); The lower filter plate (316), the upper filter plate (312) and the middle mold (328) are used to envelope the hollow cavity (317); The lower filter plate (316) and the upper filter plate (312) have through holes; An upper support plate (307) and a lower support plate (311) are respectively arranged at the upper part of the upper filter plate (312) and the lower part of the lower filter plate (316); An oil nozzle (319) is arranged on the connecting flange group A (318) and an oil injection hole (326) corresponding to the oil nozzle (319) is arranged on the connecting sleeve A (315). The upper die part is provided with a negative pressure drainage port (327) communicated with the hollow cavity (317); The upper elastic ejector rod (310) and the lower elastic ejector rod (314) are respectively arranged between the upper die part (309) and the middle die part (328) and between the middle die part (328) and the lower die part (313); The connection flange group B (321) is provided with a cloth pressing platform (325) for bearing the lower filter cloth B; The upper die part (309) is connected with the upper support plate (307); The workbench of the extrusion frame (302) is connected with the lower support plate (311); The middle die part (328) is provided with a guide light rod (320) at the lower end thereof; The lower die part (313) is connected with the guide light rod (320) through the lower connecting frame (329); The guide light rod (320) is forced to move upward and the upper die part (309) is forced to move downward; The lower elastic ejector rod (314) is arranged between the lower support plate (311) and the lower die part (313); The upper elastic ejector rod (310) is arranged between the upper support plate (307) and the upper die part (309); The upper filter cloth A of the filter cloth part (301) is located between the upper filter plate (312) and the middle die part (328); The lower filter cloth B of the filter cloth part (301) is located between the lower filter plate (316) and the middle die part (328); The upper elastic ejector rod (310) and the lower elastic ejector rod (314) respectively abut against the upper filter cloth A and the lower filter cloth B of the filter cloth part (301); The lower elastic ejector rod (314) generates pressure for controlling the Y-axis direction deviation of the lower filter cloth B of the filter cloth part (301) between the lower surface of the middle die part (328) and the elastic ejector rod (314); The upper elastic ejector rod (310) generates pressure for controlling the Y-axis direction deviation of the upper filter cloth A of the filter cloth part (301) between the upper surface of the middle die part (328) and the upper elastic ejector rod (310); The upper die part (309), the upper elastic ejector rod (310) and the upper filter plate (312) are combined into an upper die assembly which is lifted together with the middle die part (328); Before the upper die part (309) and the lower die part (313) are closed, the upper elastic ejector rod (310) and the lower elastic ejector rod (314) respectively contact the upper filter cloth A and the lower filter cloth B of the filter cloth part (301) with the surface of the corresponding middle die part (328).

6. The activated sludge hydraulic dewatering system of claim 1, wherein: The second half shaft (202) is connected with a driving wheel (203) at the outer end thereof; The first half shaft (201) is connected with a driving motor part A (204) at the outer end thereof; The first half shaft (201) and the second half shaft (202) are respectively supported on the corresponding main body frame (501) through the corresponding bearing assembly (205); A gap part (206) is arranged between the first half shaft (201) and the second half shaft (202); The first half shaft (201) is coaxially provided with an inner cavity A (207), a middle cavity B (208) and an outer stop C (209) in sequence at the inner end thereof; The second half shaft (202) is provided with a second shaft end (210) which is inserted into the middle cavity B (208) through the outer stop C (209) at the inner end thereof; The second shaft end (210) is provided with a support bearing (211); the support bearing (211) is in contact with the inner side wall of the hollow cavity B (208); The support bearing (211) is at least two groups, and a spacing sleeve (212) is arranged between adjacent support bearings (211); The second shaft end (210) and the outer stop C (209) are provided with a shaft seal C (213).

7. The activated sludge hydraulic dewatering system according to claim 1, wherein: The crushing shaft group C (107) and the crushing shaft group D (109) are perpendicular in structure and direction; The first radial pipe (102) and the second radial pipe (103) are respectively provided with corresponding sealing end covers (115); The sealing end cover (115) is provided with a bearing seat A (110); The bearing seat A (110) and the sealing end cover (115) are connected by a bolt A (111); a spring A (112) is arranged between the bolt A (111) and the bearing seat A (110); The other end of the first radial pipe (102) is provided with a bearing end cover; The bearing end cover is in rotational positioning contact with the corresponding main shaft part (121) and / or the auxiliary main shaft (120); The sealing end cover (115) is provided with a stepped support seat (113); The support seat (113) is connected with an outer shell (114); The outer shell (114) is connected with an upper cover body (116); The upper cover body (116) is provided with a motor flange (117) with a process gap (118), which is used to connect the shell of the motor; The crushing shaft group A (106) includes a main shaft part (121) arranged in the bearing seat A (110); the main shaft part (121) is connected with the motor through a shaft coupling (119); The auxiliary main shaft (120) and the main shaft part (121) are in opposite rotation through gear meshing or in same direction rotation through chain transmission; The main shaft part (121) has a shaft shoulder part (122) passing through the bearing seat A (110) and being positioned on the axis; The auxiliary main shaft (120) and the main shaft part (121) are respectively provided with crushing discs (123); the adjacent crushing discs (123) are provided with a spacing sleeve (124); The crushing disc (123) is distributed with a convex part (125) around the periphery; the convex part (125) is provided with a right angle step (128) on the front surface and has an inclined back surface (126); the right angle step (128) is inlaid with a convex cutting piece (127); The two side edges and the top edge of the convex cutting piece (127) respectively protrude from the body of the convex part (125); The convex cutting pieces (127) of the auxiliary main shaft (120) and the main shaft part (121) are staggered; The distance between the adjacent convex cutting pieces (127) is less than one millimeter.

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