River sludge treatment filter pressing system

Abstract

The invention discloses a river sludge treatment filter pressing system, and belongs to the technical field of water pollution treatment. Comprising a first-stage water removal assembly, a second-stage filter pressing assembly and a third-stage filter pressing assembly which are arranged in sequence, the first-stage water removal assembly comprises a lifting feeding belt and a water collection structure; the secondary filter pressing assembly comprises a circulating operation bin, division bins and pressing plate structures independently arranged in the division bins; and the third-stage filter pressing assembly comprises a material collecting bin and a grinding roller. According to the invention, through multiple process treatments, the treatment effect on the sludge in the polluted water body is ensured; the system integrates a plurality of procedures, realizes repeated water removal and filter pressing operation, and is good in effect; and chemical mixing is introduced, so that the treatment effect is further enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of water pollution treatment, in particular to a river sludge treatment filter press system. Background Art

[0002] Cleaning river sludge is crucial in water pollution treatment. Sludge not only affects the normal flow and function of rivers, but also accumulates harmful substances in the sludge, continuously polluting the water. Currently, sludge is often filtered and then subjected to chemical treatment to refine and make it usable.

[0003] For example, patent application number 2023113375391 discloses a sludge filter press device, comprising a hopper for receiving sludge to be filtered, and a filter press section comprising multiple sludge filter chambers to facilitate clearing sludge blockages during the filtration process. Patent application number 2020225210052 discloses a high-efficiency sludge filter press device, with a sludge discharge port at one end of the bottom of the drain tank to remove some of the water from the sludge before the filtration process. Patent application number 2019107262262 discloses a method for conditioning and concentrating sludge using filter press, including sludge conditioning and sludge concentrating. The method boasts high efficiency, low cost, minimal footprint, and promising industrialization prospects. Patent application number 2024207055682 discloses a sludge disposal filter press device, including a sludge conveying mechanism, which improves the sludge filtration efficiency of the filter press.

[0004] All equipment in the existing technology can achieve filter press treatment of sludge; however, the filter press effect has some shortcomings, and the mud cake contains more water; moreover, many equipment cannot maintain continuous operation and need to suspend feeding during the pressure process, resulting in reduced efficiency; in addition, there are some shortcomings in the sludge treatment process of each equipment. Summary of the Invention

[0005] The purpose of the present invention is to solve the above problems in the prior art and to propose a river sludge treatment filter press system.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A river sludge treatment filter press system performs multiple steps on river sludge that pollutes water bodies; it includes: a first-stage water removal component, a second-stage filter press component, and a third-stage filter press component arranged in sequence; The first-stage water removal assembly includes: a lifting feed belt and a water collection structure; The secondary filter press assembly includes: a circulating operation chamber, a segmentation chamber, and a pressure plate structure independently arranged in each segmentation chamber; The three-stage filter press assembly includes: an aggregate bin and a roller.

[0007] In some embodiments, a feeding area, a filter pressing area, and a discharge area are formed in the circulating operation chamber; There are no less than three split chambers, and each split chamber passes through the feeding area, the filter pressing operation area, and the discharge area in sequence, realizing uninterrupted feeding, filter pressing, and discharge operations.

[0008] In some embodiments, the circulating operation chamber is a circular chamber structure with an open top; an opening is provided on one side of the circular chamber structure and is connected to the first-stage water removal assembly through a pipe; the opening is provided on the side wall of the feed zone; The bottom of the circulating operation bin is connected to a mud discharge hopper, which is located in the discharge area.

[0009] In some embodiments, a rotating sealing plate is provided on the top of the circulating operation chamber, and no less than three partition plates are provided around the lower end of the rotating sealing plate; partition chambers are formed between adjacent partition plates; As the rotary sealing plate rotates, each segmentation chamber reaches the feeding area in turn, connects with the opening and enters the sludge; the segmentation chamber rotates until it is no longer connected with the opening and enters the filter pressing operation area; the pressure plate structure moves downward to perform filter pressing on the sludge.

[0010] In some embodiments, a water collecting pipe is provided around the outer side of the circulation operation chamber; The side wall openings of the circulation operation chamber are connected to the water collecting pipe.

[0011] In some embodiments, the collecting bin is a rectangular parallelepiped structure, and the upper end is connected to the secondary filter press assembly; The aggregate bin is provided with no less than two rollers along its length; In some embodiments, the invention further comprises: a mud cake crushing assembly; the mud cake crushing assembly crushes the mud cake formed by the three-stage filter press assembly into particles; The mud cake crushing assembly is arranged below the aggregate bin and is composed of a plurality of coaxially arranged disc cutters.

[0012] In some embodiments, the invention further comprises: a four-stage filter press assembly; The four-stage filter press assembly includes: a spiral conveying mechanism connected to and arranged below the collecting bin, and an extension cylinder arranged at the discharge end of the spiral conveying mechanism; a pressure cap is provided at the end of the extension cylinder.

[0013] In some embodiments, the primary water removal assembly includes: a square bin body; A feeding port is provided on one side of the front end of the square silo; a plurality of guide plates are provided on the inner side of the feeding port to form a guide hopper; the lower end of the guide hopper corresponds to the lower end of the lifting feed belt; The water collection structure includes: a water filter plate located at the lower end of the lifting feed belt, and a water collection bin formed below the water filter plate and in cooperation with the square bin body.

[0014] In some embodiments, the rear end of the square warehouse body is further provided with: a half groove cooperating with the water filter plate and the rear wall plate; The front side of the half tank is partially opened and connected to the water collection bin; A double-threaded auger is provided in the half tank to transport the sludge to the middle; An opening is arranged in the middle of the half tank and connected to the secondary filter press assembly through a pipeline.

[0015] Compared with the prior art, the present invention provides a river sludge treatment filter press system with the following beneficial effects.

[0016] 1. The present invention ensures the treatment effect of sludge from polluted water bodies through multiple processing steps; the system integrates multiple processes to achieve multiple water removal and filter pressing operations with good results; and the introduction of chemical mixing further enhances the treatment effect.

[0017] 2. The present invention elevates the feed belt and cooperates with the water accumulation structure to achieve preliminary separation of water and sludge; a half-trough is provided to cooperate with the water filter plate and the rear wall plate, and part of the water in the sludge is filtered again into the water collection bin; a double-threaded auger is provided in the half-trough to transport the sludge to the middle, filter the water again, and connect the pipeline to the secondary filter press assembly.

[0018] 3. In the present invention, the circulating operation bin, the rotating dividing room and the pressure plate structure cooperate with each other to realize uninterrupted feeding, filtration and discharge operations; a water collecting pipe is arranged around the outside of the circulating operation bin to discharge the collected water; the mud discharge hopper is concave downward to form an inclined surface, which is more convenient for discharging; the rollers of the collecting bin rotate relative to each other, gather the sludge in the middle, and squeeze it downward to discharge it; the mud cake crushing component crushes the mud cake into particles, which is more convenient for subsequent processing; the four-stage filter press component filters the sludge again, and cooperates with the drug dispensing pipe to add drugs to the falling sludge fragments to further treat the sludge.

[0019] Other advantages, objects and features of the present invention will be described in part in the following description; and in part will be apparent to those skilled in the art based on an examination of the following; or may be taught from the practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the rear structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0023] Figure 4It is a side structural schematic diagram of the present invention.

[0024] Figure 5 It is a partial cross-sectional view of the square warehouse body.

[0025] Figure 6 It is a side view of a partial cross-section of the square warehouse body.

[0026] Figure 7 It is a schematic diagram of part of the structure of the square warehouse.

[0027] Figure 8 It is a partial top view of the square warehouse body.

[0028] Figure 9 It is a structural diagram of the circulating operation chamber.

[0029] Figure 10 This is a schematic diagram of the lower structure of the circulating operation chamber.

[0030] Figure 11 Schematic diagram of the separation state of the circulating operation chamber.

[0031] Figure 12 This is a partial structural diagram of the circulating operation chamber.

[0032] Figure 13 This is a schematic diagram of the partitioning of the circulating operation warehouse.

[0033] Figure 14 Schematic diagram of the coordinated partitioning between the rotating partitions.

[0034] Figure 15 It is a partial cross-sectional schematic diagram of the rotating partition.

[0035] Figure 16 for Figure 15 Schematic diagram of the enlarged structure at point A in the middle.

[0036] Figure 17 This is a structural diagram of the aggregate silo.

[0037] Figure 18 Schematic diagram of the lower structure of the aggregate silo.

[0038] Figure 19 This is a partial cross-sectional structural diagram of the aggregate silo.

[0039] Figure 20 It is a partial cross-sectional side view of the aggregate silo.

[0040] Figure 21 It is a structural diagram of the screw conveying mechanism.

[0041] Figure 22 It is a top view of the spiral conveying mechanism.

[0042] In the picture: 1. Lifting feed belt; 2. Circulating operation chamber; 21. Feeding area; 22. Filter pressing operation area; 23. Discharge area; 4. Collection bin; 41. Pressing roller; 42. Inclined screen plate; 43. Water guide plate; 44. Drainage outlet; 45. Disc cutter; 5. Water collecting pipe; 6. Screw conveying mechanism; 61. Extension cylinder; 62. Variable diameter bucket; 63. Drug dispensing pipe; 7. Square bin body; 71. Feeding port; 72. Guide plate; 73. Half trough; 8. Water filter plate; 81. Water collecting bin; 9. Press plate structure; 91. Rotating sealing plate; 92. Partition plate. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] Reference Figure 1-22 A river sludge treatment filter press system performs multi-step treatment on river sludge that pollutes water bodies; it includes: a first-stage water removal component, a second-stage filter press component, and a third-stage filter press component arranged in sequence; the first-stage water removal component quickly removes most of the water carried in the sludge, and then multiple filter press operations are carried out to complete the treatment of the river sludge in multiple steps to ensure better treatment effect.

[0045] In some embodiments, the primary water removal assembly includes: a lifting feed belt 1 and a water collection structure.

[0046] It should be noted that the lifting feed belt 1 is arranged at an angle; the river sludge is gradually lifted under the action of the lifting feed belt 1; and at the same time, a large amount of water is drained and flows down; the drained water is collected by the water accumulation structure to achieve the initial separation of water and sludge.

[0047] Preferably, a plurality of raised strips perpendicular to the moving direction are arranged at intervals on the surface of the belt body of the lifting feed belt 1, so as to form a better carrying capacity for the sludge.

[0048] like Figures 1 to 8 As shown, the first-stage water removal assembly includes: a square bin body 7 as the main peripheral frame.

[0049] A feeding port 71 is provided on one side of the front end of the square bin body 7; a plurality of guide plates 72 are provided on the inner side of the feeding port 71 to form a guide hopper; the feeding port 71 cooperates with the guide hopper to allow the sludge to fall onto the lifting feed belt 1; and part of the fallen sludge is gathered and guided.

[0050] It should be noted that the lower end of the guide hopper corresponds to the lower end position of the lifting feed belt 1.

[0051] like Figure 5As shown, the sludge is fed into the square bin 7 from the opening (feeding port 71) on the front side manually or mechanically. When fed in, the sludge is controlled to fall directly onto the lifting feed belt 1 and be lifted by the lifting feed belt 1. However, some dripping or sliding will inevitably occur. At this time, the sludge falls into the guide hopper and is guided and then transported away by the lifting feed belt 1 again.

[0052] like Figure 6 As shown, the guide hopper is close to the lifting feed belt 1 and maintains a reasonable gap; in conjunction with the circulation operation of the lifting feed belt 1, very little sludge will fall below from the gap.

[0053] Please refer to Figure 3 、 5 , 7, 8; two guide plates 72 on the left and right sides are inclined toward the middle position of the lower side, and a guide plate 72 on the front side is inclined toward the lower end of the rear side; the contact positions of the three guide plates 72 are welded and connected to form a guide hopper that guides the sludge obliquely toward the rear and lower side; the lowest end of the guide hopper is higher than the lowest end of the lifting feed belt 1.

[0054] In some embodiments, the water collection structure includes: a water filter plate 8 located at the lower end of the lifting feed belt 1, and a water collection bin 81 formed below the water filter plate 8 and in cooperation with the square bin body 7.

[0055] like Figure 5 、 6 As shown, the water filter plate 8 is tilted toward the rear; part of the sludge falls on the water filter plate 8 and slides backward; the water flowing down from the lifting feed belt 1 passes through the water filter plate 8 and enters the water collection bin 81.

[0056] It is understandable that the water collecting bin 81 is provided with an external drain pipe or a drain outlet or other structures to drain the water collected inside to the outside.

[0057] It should be noted that the openings of the water filter plate 8 need to take into account the passage of water and sludge; preferably, the openings are set to be less than 1 mm; after a period of use, the water filter plate 8 should be cleaned and maintained.

[0058] Optionally, a plurality of vibrators are arranged under the water filter plate 8 to generate vibrations intermittently during use to prevent sludge from clogging the water filter plate 8, resulting in water failure.

[0059] Furthermore, the rear end of the square bin body 7 is also provided with a half groove 73 that cooperates with the water filter plate 8 and the rear wall plate.

[0060] Among them, the front part of the half tank 73 is connected to the water collection bin 81 through the openings; after the sludge passes through the water filter plate 8, it reaches the half tank 73 and temporarily gathers; at the same time, in the half tank 73, part of the water in the sludge is filtered again and enters the water collection bin 81.

[0061] Furthermore, a double-threaded auger is provided in the half tank 73 to transport the sludge to the middle.

[0062] An opening is provided in the middle of the half tank 73 for backward communication, and is connected to a pipeline to the secondary filter press assembly.

[0063] The sludge falling on the filter plate 8 slides and gathers in the half groove 73; under the action of the double-threaded auger, the sludge is gathered to the middle position and transported to the secondary filter press assembly through a pipeline for further processing.

[0064] Moreover, during the double-threaded auger conveying process, when the sludge gathers in the center, some water can be squeezed out.

[0065] It can be understood that the double-threaded auger is symmetrical from the middle and is provided with two spiral blades with opposite rotation directions.

[0066] It should be noted that the upper opening of the half trough 73 corresponds to the rear end position of the lifting feed belt 1; after the lifting feed belt 1 lifts the sludge, it falls into the half trough 73; during the falling process, some water can be discharged by utilizing its gravity.

[0067] Preferably, Figure 6 As shown; the connecting pipe between the half tank 73 and the secondary filter press assembly has an inclined front portion for smoother discharge.

[0068] It should be noted that the rear side wall of the square silo body 7 should be slightly higher than the high end of the lifting feed belt 1 to block the backward movement of the sludge and prevent it from flowing out of the square silo body 7.

[0069] In some embodiments, the secondary filter press assembly includes: a circulating operation chamber 2, a rotating partitioning chamber, and a pressure plate structure 9 independently provided in each rotating partitioning chamber.

[0070] Among them, the circulating operation chamber 2 is surrounded by a feeding area 21, a filter pressing operation area 22, and a discharge area 23; there are no less than three rotating dividing rooms, and each rotating dividing room passes through the feeding area 21, the filter pressing operation area 22, and the discharge area 23 in sequence, realizing uninterrupted feeding, filter pressing, and external discharge operations.

[0071] like Figure 13 、 14 As shown; different positions correspond to different operation areas; in the feed area 21, the sludge is continuously fed into the current corresponding rotary dividing room; after that, after the rotary dividing room completely leaves the feed area 21, it is exerted with force by the pressure plate structure 9 in the filter pressing operation area 22 to form a compressed mud cake state; then, after reaching the discharge area 23, the mud cake is discharged outward.

[0072] like Figures 9 to 15As shown; the circulating operation bin 2 is a circular bin structure with an open top; an opening is provided on one side of the circular bin structure and is connected to the first-level water removal component through a pipe; the opening is provided on the side wall of the feed area 21; a mud discharge hopper is provided at the bottom of the circulating operation bin 2; the mud discharge hopper is located in the discharge area 23.

[0073] A rotating sealing plate 91 (the power structure is not shown) is provided on the top of the circulating operation chamber 2, and no less than three partition plates 92 are fixedly provided around the lower end of the rotating sealing plate 91; the partition plates 92 are in conflict with the inner bottom of the circulating operation chamber 2; a rotating partition room is formed between adjacent partition plates 92; that is, the rotating partition room is formed by cutting the partition plates 92, and the position changes as the partition plates 92 move.

[0074] As the rotary sealing plate 91 rotates, each rotary dividing chamber reaches the feed area 21 in turn, connects with the opening and enters the sludge; the rotary dividing chamber rotates until it is no longer connected with the opening and enters the filter pressing operation area 22; the pressure plate structure 9 moves downward to perform filter pressing on the sludge.

[0075] It can be understood that the pressure plate structure 9 cooperates with the rotating partition; the top of the rotating sealing plate 91 is equipped with multiple telescopic power parts that generate power for the pressure plate structure 9; preferably, each pressure plate structure 9 corresponds to no less than two telescopic power parts.

[0076] Under the cooperation of multiple rotating dividing rooms and the circulating operation chamber 2, the first-level water removal component continuously feeds the preliminarily dewatered sludge into the second-level filter press component; under the switching operation of multiple rotating dividing rooms, different operation steps are realized in coordination.

[0077] It should be noted that the rotating partition can operate at a constant speed or intermittently. For example, after a rotating partition completely leaves the feed area 21 and reaches the filter press operation area 22, the rotation can be suspended. The filter press operation is performed in the rotating partition; the next rotating partition performs the operation of feeding sludge; after the sludge amount in the next rotating partition is about to reach the set value, it is turned on and continues to rotate. At this time, the pressure plate structure 9 can continue to press down or rise; rising slightly can reduce the demand for rotational power; the sludge after filter press is discharged after reaching the discharge area 23. Similarly, when the operation is continuously constant at a constant speed: after a rotating partition completely leaves the feed area 21 and reaches the filter press operation area 22, the pressure plate structure 9 begins to be gradually pressed down to perform the filter press operation.

[0078] In some embodiments, a water collecting pipe 5 is provided around the outer side of the circulation operation chamber 2 .

[0079] like Figure 12 、 15 , 16; the side wall opening of the circulation operation chamber 2 is connected to the water collecting pipe 5.

[0080] It can be understood that the water collecting pipe 5 is connected to the outside to discharge the collected water; in order to avoid clogging of the water collecting pipe 5, backwashing is performed after a period of use.

[0081] In some embodiments, the mud discharge hopper is concave downward to form an inclined surface to facilitate material discharge.

[0082] The top of the mud discharge hopper is a fan-shaped opening, and the side panels are two vertical surfaces and an arc surface (extending downward) that cooperates with the circulating operation chamber 2.

[0083] The lower end surface of the mud hopper is an inclined surface; and the lowest point of the inclined surface is located at the intersection of the arc surface and one of the vertical surfaces; Figure 10 、 15 As shown, the lowest end is located near the outer edge of the rear side.

[0084] In some embodiments, the three-stage filter press assembly includes: a collection bin 4 and a roller 41 .

[0085] Among them, the aggregate bin 4 is connected to the mud hopper of the circulation operation bin 2; Figure 14 As shown, an opening is provided at the lower end of the lower end surface of the mud discharge hopper to communicate with the aggregate bin 4.

[0086] Preferably, the collecting bin 4 is a rectangular parallelepiped structure, with a long strip opening formed at the upper end to communicate with the secondary filter press assembly.

[0087] like Figures 17-20 As shown; there are no less than two rollers 41 arranged in the aggregate bin 4 along its length direction.

[0088] It should be noted that adjacent rollers 41 run in opposite directions relative to each other; Figure 20 In the figure, the right roller 41 rotates counterclockwise, and the left roller 41 rotates clockwise; the two rollers 41 gather the sludge toward the middle and squeeze it downward to discharge it.

[0089] The sludge processed by the secondary filter press assembly enters the collecting bin 4 in the form of broken mud blocks and is squeezed by the roller 41 to form mud strips or mud cakes in a relatively regular shape.

[0090] Furthermore, an inclined screen plate 42 is provided below the roller 41; a water guide plate 43 is provided below the inclined screen plate 42; and a drain port 44 is provided on the side wall of the aggregate bin 4 to guide water out.

[0091] It can be understood that there is a gap between the lower end of the inclined screen plate 42 and the inner wall of the collecting bin 4 to allow the sludge to fall; preferably, the water guide plate 43 is slightly inclined, and its end close to the drain outlet 44 is lower; Figure 20 As shown, during the falling process of the sludge, part of the water is discharged and enters between the inclined screen plate 42 and the water guide plate 43; then, it is discharged through the drain port 44; preferably, the drain port 44 is connected to a pipe to the water storage area.

[0092] In some embodiments, the invention further comprises a mud cake crushing assembly.

[0093] The mud cake crushing component crushes the mud cake formed by the three-stage filter press component into particles.

[0094] The mud cake crushing assembly is arranged below the aggregate bin 4 and is composed of a plurality of coaxially arranged disc cutters 45 .

[0095] like Figure 20 As shown; the mud cake crushing assembly is arranged below the gap between the inclined screen plate 42 and the aggregate bin 4, and is partially upwardly located between the gaps; the falling sludge is chopped into fine pieces by the disc cutter 45, which is more convenient for subsequent processing.

[0096] In some embodiments, it also includes: a four-stage filter press assembly.

[0097] The finely crushed sludge formed by the mud cake crushing component is filtered again through the four-stage filter press component.

[0098] The four-stage filter press assembly includes: a screw conveying mechanism 6 connected to and arranged below the collecting bin 4 , and an extension cylinder 61 arranged at the discharge end of the screw conveying mechanism 6 .

[0099] The auger pitch of the spiral conveying mechanism 6 gradually decreases toward the outlet position; during the conveying process, the squeezing of the sludge is gradually strengthened.

[0100] It should be noted that the sludge entering the spiral conveying mechanism 6 here has been crushed and can be better collected, squeezed and shaped; if there is no preceding mud cake crushing component, the treatment effect of large sludge will be very poor.

[0101] During operation, the sludge is squeezed by the spiral conveying mechanism 6 during the conveying process and enters the extension cylinder 61; a thick mud column is formed in the extension cylinder 61; correspondingly, a pressure cap is provided at the end of the extension cylinder 61 to form a seal; after the pressure reaches a certain level, the pressure cap is opened to discharge a section of the mud column; then, the pressure cap is closed again to carry out the next extrusion molding operation.

[0102] It is understandable that the pressure cover can be in the form of a side cover, a sliding cover, etc.; in conjunction with the set power structure, after monitoring that the pressure reaches the set pressure, it automatically opens to discharge a section of mud column.

[0103] For pressure monitoring, multiple sensors are set in the pressure cover and the extension tube 61 for real-time monitoring.

[0104] In some embodiments, the spiral conveying mechanism 6 is connected to the collecting bin 4 via a reducing bucket 62 ; the reducing bucket 62 is larger at the top and smaller at the bottom, and gathers the sludge fragments into the spiral conveying mechanism 6 .

[0105] Furthermore, a medicine dispensing tube 63 is provided on the inner side of the reducing bucket 62 .

[0106] The medicine dispensing tube 63 passes through to the outside and is connected to the medicine supply; a plurality of medicine outlets are provided on the medicine dispensing tube 63, which relatively evenly add medicine to the falling sludge fragments to further treat the sludge.

[0107] Among them, the drugs are reasonably selected according to different water pollution conditions and harmful substances carried by the sludge. In the previous step, the sludge is crushed, and the mixing effect with the drugs in this step is better.

[0108] Preferably, the medicine dispensing tube 63 can be provided in multiple configurations; Figure 21 、 22 As shown, a drug dispensing tube 63 is provided on each side to ensure more uniform drug addition.

[0109] When the system is in use, the river sludge cleaned from the polluted water body is first fed into the first-stage water removal component; the sludge falls on the lifting feed belt 1, and a large amount of water is leached during the lifting process; the water falls into the water accumulation structure and is collected; some of the sludge that leaks during the lifting process enters the half tank 73 under the guidance of the water filter plate 8; at the same time, after the lifted sludge reaches the highest point, it falls into the half tank 73 and some water is discharged again; then, the double-threaded auger gathers the sludge in the middle and leads it to the second-stage filter press through a pipe. components; in the secondary filter press component, the uninterrupted feeding, filtration and discharge operations are realized through the cooperation of the circulating operation chamber 2 and the rotating dividing room; then, the sludge enters the tertiary filter press component and is squeezed into mud strips or mud cakes; then, the mud strips or mud cakes are processed by the mud cake crushing component to form finely crushed sludge blocks; then, the sludge blocks are processed by the quaternary filter press component while adding reasonable treatment agents for chemical treatment; finally, the sludge in the quaternary filter press component is squeezed into columns and discharged outward at intervals.

[0110] In the present invention, the treatment effect of the sludge in the polluted water body is guaranteed through multiple processing steps; the system integrates multiple processes to achieve multiple water removal and filter pressing operations with good effects; and the introduction of chemical mixing further enhances the treatment effect.

[0111] In the present invention, the lifting feed belt 1 cooperates with the water accumulation structure to achieve the preliminary separation of water and sludge; a half-trough 73 is provided to cooperate with the water filter plate 8 and the rear wall plate, and part of the water in the sludge is filtered again into the water collection bin 81; a double-threaded auger is provided in the half-trough 73 to transport the sludge to the middle, filter the water again, and connect the pipeline to the secondary filter press assembly; the circulating operation bin 2, the rotating dividing room and the pressure plate structure 9 cooperate to achieve uninterrupted feeding, filtration and external discharge operations; a water collection pipe 5 is provided around the outer side of the circulating operation bin 2 to discharge the collected water; the mud discharge hopper is concave downward to form an inclined surface, which is more convenient for discharging; the rollers 41 of the collecting bin 4 rotate relative to each other, gather the sludge to the middle, and squeeze it downward to discharge it; the mud cake crushing assembly crushes the mud cake into particles, which is more convenient for subsequent processing; the four-stage filter press assembly filters the sludge again, and cooperates with the drug dispensing pipe 63 to add drugs to the falling sludge fragments to further treat the sludge.

[0112] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

[0113] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

Claims

1. A river sludge treatment filter press system, characterized in that: The multi-step treatment process is used to treat the river sludge that pollutes the water body; it includes the following steps: a first-stage water removal component, a second-stage filter press component and a third-stage filter press component; The first-stage water removal assembly comprises: a lifting feed belt (1), and a water collection structure; The secondary filter press assembly comprises: a circulating operation chamber (2), a rotating partition chamber, and a pressure plate structure (9) independently arranged in each rotating partition chamber; The three-stage filter press assembly comprises: a collection bin (4) and a roller (41).

2. The river sludge treatment filter press system according to claim 1, characterized in that: The circulating operation chamber (2) is surrounded by a feeding area (21), a filter pressing operation area (22), and a discharge area (23); There are no less than three rotating dividing rooms, and each rotating dividing room passes through a feeding area (21), a filter pressing operation area (22), and a discharge area (23) in sequence, thereby achieving uninterrupted feeding, filter pressing, and discharge operations.

3. The river sludge treatment filter press system according to claim 1, characterized in that: The circulating operation bin (2) is a circular bin structure with an open top; an opening is provided on one side of the circular bin structure and is connected to the first-stage water removal assembly through a pipe; the opening is provided on the side wall of the feed zone (21); The bottom of the circulating operation chamber (2) is connected to a mud discharge hopper; the mud discharge hopper is located in the discharge area (23).

4. The river sludge treatment filter press system according to claim 3, characterized in that: A rotating sealing plate (91) is provided on the top of the circulating operation chamber (2), and no less than three partition plates (92) are provided around the lower end of the rotating sealing plate (91); a rotating partitioning room is formed between adjacent partition plates (92); As the rotary sealing plate (91) rotates, each rotary partitioning chamber reaches the feed area (21) in turn, connects with the opening, and enters the sludge; the rotary partitioning chamber rotates until it is no longer connected with the opening, and enters the filter pressing operation area (22); the pressing plate structure (9) moves downward to perform filter pressing on the sludge.

5. The river sludge treatment filter press system according to claim 3, characterized in that: A water collecting pipe (5) is provided around the outer side of the circulation operation chamber (2); The side wall opening of the circulation operation chamber (2) is connected to the water collecting pipe (5).

6. The river sludge treatment filter press system according to claim 1, characterized in that: The aggregate bin (4) is a rectangular parallelepiped structure, with the upper end connected to the secondary filter press assembly; No less than two rollers (41) are provided in the aggregate bin (4) along its length.

7. The river sludge treatment filter press system according to claim 6, characterized in that: Also includes: A mud cake crushing assembly; the mud cake crushing assembly crushes the mud cake formed by the three-stage filter press assembly into particles; The mud cake crushing assembly is arranged below the aggregate bin (4) and is composed of a plurality of coaxially arranged disc cutters.

8. The river sludge treatment filter press system according to claim 7, characterized in that: Also includes: Four-stage filter press assembly; The four-stage filter press assembly comprises: a screw conveying mechanism (6) arranged below the collecting bin (4) and an extension cylinder (61) arranged at the discharge end of the screw conveying mechanism (6); a pressure cap is provided at the end of the extension cylinder (61).

9. The river sludge treatment filter press system according to claim 1, characterized in that: The first-stage water removal component comprises: a square bin body (7); A feeding port (71) is provided on one side of the front end of the square silo (7); a plurality of guide plates (72) are provided on the inner side of the feeding port (71) to form a guide hopper; the lower end of the guide hopper corresponds to the lower end of the lifting feed belt (1); The water collection structure comprises: a water filter plate (8) located at the lower end of the lifting feed belt (1), and a water collection bin (81) formed below the water filter plate (8) and in cooperation with the square bin body (7).

10. The river sludge treatment filter press system according to claim 9, characterized in that: The rear end of the square bin body (7) is further provided with: a half groove (73) that cooperates with the water filter plate (8) and the rear wall plate; The front portion of the half tank (73) has an opening connected to the water collection chamber (81); A double-threaded auger is provided in the half tank (73) for transporting the sludge to the middle; An opening is provided in the middle of the half tank (73) and is connected to the secondary filter press assembly through a pipeline.

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