A filter press device for mud environmental treatment

Abstract

The application discloses a filter-pressing device for mud environment-friendly treatment and relates to the technical field of sludge dewatering treatment. The filter-pressing device comprises a water removal tank arranged in a protection box, a filter-pressing frame, a sludge inlet pipe arranged on the water removal tank, a filter-pressing unit, a water removal unit and an elevating unit. The filter-pressing unit comprises an extrusion assembly and a filter assembly, the elevating unit is arranged in the extrusion assembly and is used for extruding sludge, the filter assembly is arranged in the filter-assembly and is used for filtering sewage, the water removal unit comprises a dispersing assembly and a drying assembly, and the dispersing assembly is arranged in the dispersing assembly and is used for dispersing the extruded sludge. The filter-pressing device has the advantages that the preliminary dewatering of the sludge can be realized by adopting the reciprocating extrusion mode, the sludge can be subjected to the dispersing and hot air blowing mode after the preliminary dewatering, the closed water cavity in the sludge is broken, the contact area of the sludge and the hot air is increased, the residual water in the sludge is quickly separated, the deep dewatering of the sludge block is realized, and the water content of the sludge cake is effectively reduced.

Description

Technical Field

[0001] This invention relates to the technical field of sludge dewatering treatment, and more particularly to a filter press device for environmentally friendly sludge treatment. Background Technology

[0002] Mud refers to a two-phase suspension system of solid and liquid, in which water is used as the dispersion medium and clay and fine solid particles are used as the dispersion phase. It is usually generated in engineering operations such as building pile foundation, river dredging, mining, and geological drilling. After the mud is initially drained and forms sludge, it is usually dewatered again using a filter press to reduce the water content of the sludge and achieve its secondary reuse or discharge in compliance with standards.

[0003] Existing filter press devices employ various methods to achieve water removal. For example, a sludge filter press with publication number CN204147623U includes: a frame, a sludge tank fixing frame, a sludge pressing tank, a sludge filter press mold, a sludge guide channel, a sealing plug, and a press. The sludge pressing tank is fixedly installed on the frame, and both ends of the sludge pressing tank are supported and protected by the sludge tank fixing frame. The sludge filter press mold is located at the upper end of the sludge pressing tank, and multiple filter water columns are provided on the sludge filter press mold. Existing devices only use extrusion to dewater sludge. However, this method of dewatering is incomplete. After extrusion, the sludge tends to clump and compact, making it difficult to remove internal water and resulting in a high moisture content in the sludge cake. For example, the aforementioned existing technology only uses sludge filter molds to extrude sludge for dewatering. After extrusion, a lot of sludge remains inside the sludge cake, resulting in a high moisture content. At the same time, the sludge adhering to the sludge filter mold cannot be demolded quickly, leading to problems such as poor unloading and solid-liquid mixing, which has certain limitations. Therefore, there is an urgent need to design a filter press device for environmentally friendly mud treatment to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a filter press device for environmentally friendly mud treatment, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a filter press device for environmentally friendly mud treatment, comprising a dewatering tank disposed within a protective box, and further comprising: The filter press frame is installed inside the dewatering tank, and the dewatering tank is equipped with a sludge inlet pipe for conveying sludge into the filter press frame. The filter press unit, located inside the filter press frame, includes a squeezing component and a filtration component. The lifting component contains a water-pressing plate for squeezing sludge, and the filtration component contains two water-filtering plates for filtering wastewater. The dewatering unit, located inside the filter press frame, includes a dispersing component and a drying component. The dispersing component is equipped with multiple cutting and dispersing wheels for dispersing and compacting the sludge, while the drying component is equipped with multiple air blowing pipes for delivering hot air into the sludge.

[0006] Preferably, the side of the protective box is equipped with an intelligent control host, which is used to control the opening and closing and operation status of the filter press unit and the dewatering unit to realize the automatic removal of sewage in the sludge; Both the protective box and the dewatering box are equipped with multiple exhaust vents for heat dissipation and ventilation.

[0007] Preferably, the extrusion assembly includes a servo motor fixedly mounted on the dewatering tank, and a drive roller is fixedly mounted on the drive end of the servo motor. A one-way bearing is provided on the drive roller, and the one-way bearing cooperates with the forward rotation of the drive roller. A lifting mechanism is provided on the one-way bearing.

[0008] Preferably, the lifting mechanism includes a reciprocating screw fixedly mounted on a one-way bearing, a ball bearing nut disc slidably mounted inside the water removal tank via a limiting slide rod, and the ball bearing nut disc cooperates with the reciprocating screw. A bent extrusion rod is fixedly mounted on the ball bearing nut disc, and a water pressure plate is fixedly mounted on the bent extrusion rod. Two lifting telescopic columns for limiting are fixedly mounted between the water pressure plate and the top wall of the water removal tank.

[0009] Preferably, the filter assembly includes two limiting frames fixedly installed on the outside of the filter press frame, and two filter plates are slidably installed in the two limiting frames respectively. The filter press frame has two sliding grooves that cooperate with the corresponding filter plates, and the two filter plates are interlocked with each other. Both filter plates are equipped with opening and closing mechanisms.

[0010] Preferably, the opening and closing mechanism includes an opening and closing box fixedly installed on the water removal tank, a plurality of telescopic limiting rods fixedly installed between the filter plate and the side wall of the water removal tank, a pull-back piston component slidably installed inside the opening and closing box, and the filter plate fixedly installed on the pull-back piston component, and a push-back spring rod for push-reset fixedly installed between the pull-back piston component and the inner wall of the opening and closing box. The opening and closing box has two limiting slots on its side that cooperate with the filter plate, and each limiting slot is fixedly installed with a folded sealing plate for sealing between it and the pull-back piston. The lower part of the opening and closing box is fixedly connected to an air intake folding pipe for adsorbing air, and an air replenishment valve is provided on the opening and closing box.

[0011] Preferably, the dispersing component includes an exhaust duct fixedly installed inside the dewatering tank, a second one-way bearing on the drive roller, the second one-way bearing cooperating with the reverse rotation of the drive roller, the second one-way bearing being rotatably connected to the exhaust duct, a plurality of impellers for generating negative pressure suction fixedly installed on the second one-way bearing, and the plurality of impellers being located inside the exhaust duct, the lower ends of the two suction baffles being connected to the exhaust duct, an air intake filter for replenishing air being provided on the exhaust duct, and a stirring mechanism being provided between the second one-way bearing and the filter press frame.

[0012] Preferably, the agitation mechanism includes a linkage roller rotatably mounted inside the filter press frame, a driving helical gear fixedly mounted on the one-way bearing, and a driven helical gear meshing with the driving helical gear fixedly mounted on the linkage roller. Multiple cutting and dispersing wheels are fixedly mounted on the linkage roller, and multiple cutting and dispersing wheels are located at the lower part of the two filter plates. A tumbling shovel for agitating sludge is fixedly mounted between two adjacent cutting and dispersing wheels.

[0013] Preferably, the drying assembly includes two heating air guide pipes for heating air, which are fixedly installed on the side of the filter press frame. Each of the two heating air guide pipes is fixedly installed with an air blower for air injection between it and the air duct. Multiple air blowing pipes are fixedly connected to the corresponding heating air guide pipes. The air outlet of each air blowing pipe is located inside the filter press frame. The filter press frame is provided with a discharge mechanism.

[0014] Preferably, the discharge mechanism includes a drainage filter plate for filtering wastewater fixedly installed at the bottom of the filter press frame, a sludge discharge conveyor for discharging sludge fixedly installed between the filter press frame and the dewatering tank, and the sludge discharge conveyor is located on the upper part of the drainage filter plate, a drainage component for discharging wastewater fixedly installed between the filter press frame and the dewatering tank, and the drainage component is located on the lower part of the drainage filter plate, a hydraulic push rod fixedly installed inside the dewatering tank, and a sludge pusher plate slidably installed on the upper part of the drainage filter plate, and the sludge pusher plate is fixedly connected to the drive end of the hydraulic pusher rod.

[0015] This invention provides a filter press device for environmentally friendly mud treatment. It has the following beneficial effects: 1. When dewatering sludge, this filter press device uses a reciprocating pressure plate in conjunction with a filter plate to efficiently and continuously squeeze the sludge, which can efficiently squeeze out most of the wastewater in the sludge, achieving preliminary dewatering of the sludge with higher dewatering efficiency.

[0016] 2. When dewatering sludge, this filter press can automatically open and close two sections after the initial dewatering is completed, allowing the sludge blocks on the filter plate to fall automatically, thus achieving rapid demolding of the sludge blocks. At the same time, during the movement of the filter plate, the squeezing action of the limiting frame can scrape off the sludge adhering to the filter plate, effectively preventing sludge from accumulating on the filter plate and causing blockage.

[0017] 3. When dewatering sludge, this filter press uses multiple continuously rotating cutting and dispersing wheels in conjunction with a turning and stirring shovel to cut, turn and disperse the compacted sludge blocks, so that the sludge is fully dispersed and the residual water inside the sludge can be quickly extracted, achieving secondary dewatering of the sludge and a better dewatering effect.

[0018] 4. When dewatering sludge, this filter press can break up and stir the sludge while using hot air to blow it away. Under the action of heat and airflow, the water in the sludge can be removed. This can achieve thorough dehumidification and drying of the sludge, as well as automatic removal and discharge of wastewater, thus achieving further dewatering of the sludge.

[0019] In summary, the present invention uses reciprocating extrusion to achieve preliminary dewatering of sludge. After preliminary dewatering, it can be broken up by dispersing and hot air blowing to break up the closed water cavities inside the sludge. At the same time, it increases the contact area between the sludge and the hot air, allowing the residual water inside to be quickly released, thereby achieving deep dewatering of the sludge block and effectively reducing the moisture content of the sludge cake.

[0020] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a filter press device for environmentally friendly mud treatment proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 1 A schematic diagram of the structure after the protective box has been removed; Figure 4 for Figure 3 Schematic diagram of the internal structure of the medium-pressure filter box; Figure 5 for Figure 4 The front view; Figure 6 for Figure 4 A schematic diagram of the structure after removing the filter press box; Figure 7 for Figure 6 Schematic diagram of the internal structure of the medium-pressure filter frame; Figure 8 for Figure 7 The front view; Figure 9 for Figure 7 A schematic diagram of the servo motor and two filter plates in the middle; Figure 10 for Figure 9 Schematic diagram of the structure of part A in the middle; Figure 11 for Figure 9 A schematic diagram of the structure of the two filter plates and the air duct; Figure 12 for Figure 11 Schematic diagram of the structure of the middle filter plate and the opening and closing box; Figure 13 for Figure 12 Internal structure diagram of the central opening and closing box; Figure 14 for Figure 7 Schematic diagram of the central exhaust duct and drainage filter plate; Figure 15 for Figure 14 The front view; Figure 16 for Figure 15 A schematic diagram of the structure of the central linkage roller and its multiple cutting and dispersing wheels.

[0022] In the diagram: 1. Protection box; 2. Intelligent control host; 3. Water removal tank; 4. Sludge inlet pipe; 5. Sludge discharge conveyor; 6. Drainage component; 7. Servo motor; 8. Opening and closing box; 9. Telescopic limit rod; 10. Filter press frame; 11. Exhaust duct; 12. Water pressure plate; 13. Tumbling shovel; 14. Limiting frame; 15. Lifting telescopic column; 16. Filter plate; 17. Drainage filter plate; 18. Bending and squeezing rod; 19. Drive roller; 20. One-way bearing I; 21. Reciprocating screw; 22. Ball bearing nut disc; 23. Suction folding pipe; 24. One-way bearing II; 25. Fan impeller; 26. Push spring rod; 27. Retracting piston component; 28. Folding sealing plate; 29. ​​Limiting slot; 30. Heating air guide pipe; 31. Blowing pipe; 32. Air blowing pipe; 33. Linkage roller; 34. Driven helical gear; 35. Driven helical gear; 36. Cutting and dispersing wheel. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Example 1: Refer to Figures 1-4 A filter press device for environmentally friendly mud treatment includes a dewatering tank 3 installed inside a protective box 1. The protective box 1 is used to protect the dewatering tank 3 and improve the operational stability of the filter press device inside the dewatering tank 3. At the same time, the protective box 1 contains electrical components and electrical circuits for driving the filter press device to operate stably.

[0025] This filter press also includes: The filter press frame 10 is set inside the dewatering tank 3, and the dewatering tank 3 is provided with a sludge inlet pipe 4 for conveying sludge into the filter press frame 10. The sludge to be dewatered by filter press is conveyed to the filter press frame 10 through the sludge inlet pipe 4 and the filter press dewatering process is carried out in the filter press frame 10.

[0026] The filter press unit is installed inside the filter press frame 10. The filter press unit is used to forcefully and continuously squeeze the sludge to quickly separate the free water in the sludge. It can efficiently filter out most of the free water in the sludge, complete the initial solid-liquid separation, and the separation process is closed, without leakage or overflow, which is environmentally friendly and can lay a good foundation for subsequent deep treatment.

[0027] The dewatering unit, located inside the filter press frame 10, can break up the squeezed sludge and perform hot air drying. It can effectively remove residual moisture inside the sludge blocks, achieving deep dewatering. It can effectively break up sludge clumps, increase the surface area of ​​the sludge exposed to air and heat, and make the sludge drying more uniform and thorough. It can significantly reduce the moisture content of the sludge, and the loosened sludge does not stick to the wall or clog the material. Combined with integrated hot air treatment, it is highly efficient and has stable effects, meeting the requirements for environmental protection emissions and reuse.

[0028] The side of the protection box 1 is equipped with a smart control host 2, which is used to control the opening and closing and operation status of the filter press unit and the dewatering unit, so as to realize the automatic removal of sewage in the sludge. The sludge dewatering process does not require manual intervention and has a higher degree of automation.

[0029] Both the protective box 1 and the dehydration box 3 are equipped with multiple exhaust vents for heat dissipation and ventilation. The hot air containing moisture in the protective box 1 and the dehydration box 3 is quickly discharged through the exhaust vents, which can not only prevent moisture accumulation from affecting the dehydration effect, but also maintain the air pressure balance inside the protective box 1 and the dehydration box 3, and ensure the smooth discharge of hot air and moisture.

[0030] Example 2: Refer to Figures 3-13 The difference between this embodiment and embodiment one is that the filter press unit includes a pressing component and a filtering component. The lifting component is provided with a water pressing plate 12 for pressing sludge, and the filtering component is provided with two water filtering plates 16 for filtering wastewater.

[0031] The extrusion assembly includes a servo motor 7 fixedly mounted on the dewatering tank 3, and a drive roller 19 fixedly mounted on the drive end of the servo motor 7. A one-way bearing 20 is provided on the drive roller 19, and the one-way bearing 20 cooperates with the forward rotation of the drive roller 19. The servo motor 7 starts under the control of the intelligent control host 2, driving the drive roller 19 to rotate. The rotation speed and direction of the drive roller 19 can be controlled by the servo motor 7. When the drive roller 19 rotates in the forward direction, it will drive the one-way bearing 20 to rotate.

[0032] A lifting mechanism is provided on the one-way bearing 20. The lifting mechanism includes a reciprocating screw 21 fixedly installed on the one-way bearing 20. A ball nut disc 22 is slidably installed in the water tank 3 through a limiting slide rod. The ball nut disc 22 cooperates with the reciprocating screw 21. A bending extrusion rod 18 is fixedly installed on the ball nut disc 22. The water pressure plate 12 is fixedly installed on the bending extrusion rod 18. Sludge enters the filter press frame 10 through the sludge inlet pipe 4 and accumulates on the two filter plates 16. At this time, when the one-way bearing 20 rotates, it will drive the reciprocating screw 21 to rotate. When the reciprocating screw 21 rotates, it will drive the ball nut disc 22 on it to move back and forth. When the ball nut disc 22 moves up and down, it will drive the pressure plate 12 to move back and forth through the bending extrusion rod 18. When the pressure plate 12 moves down, it will squeeze the sludge on the filter plate 16, thus squeezing out the sewage in the sludge and letting it fall through the filter plate 16. The reciprocating lifting and lowering of the pressure plate 12 can achieve continuous squeezing of the sludge, which can efficiently squeeze out the sewage in the sludge and complete the initial dewatering of the sludge.

[0033] Two telescopic columns 15 for limiting the position are fixedly installed between the pressure plate 12 and the top wall of the water removal tank 3. The telescopic columns 15 are used to limit and support the pressure plate 12 so that it remains stable when it moves back and forth.

[0034] The cooperation between the reciprocating lead screw 21 and the ball nut disc 22 is existing technology. The specific principle is as follows: the reciprocating lead screw 21 is a form of three-dimensional cam pair. Its specific structure consists of two threaded grooves with the same pitch and opposite directions of rotation. The two ends of the lead screw are connected by a transition curve. By rotating the lead screw, the side of the helical groove pushes the balls located in the helical groove of the ball nut disc 22 to make axial reciprocating motion. The reciprocating motion of the balls will drive the ball nut disc 22 to move back and forth. That is, when the reciprocating lead screw 21 rotates in one direction, it can drive the ball nut disc 22 to make it move linearly back and forth on the reciprocating lead screw 21.

[0035] In a further embodiment, the filter assembly includes two limiting frames 14 fixedly installed on the outside of the filter press frame 10, and two filter plates 16 are slidably installed in the two limiting frames 14 respectively. The filter press frame 10 has two sliding grooves that cooperate with the corresponding filter plates 16, and the two filter plates 16 are engaged with each other. The filter plate 16 is used to block sludge and filter sewage, allowing sewage to pass smoothly through the filter plate 16, while sludge is retained on the filter plate 16, thus completing the separation of sludge and sewage.

[0036] Both filter plates 16 are equipped with opening and closing mechanisms. The opening and closing mechanisms include opening and closing boxes 8 fixedly installed on the water removal tank 3. Multiple telescopic limit rods 9 are fixedly installed between the filter plates 16 and the side wall of the water removal tank 3. A pull-back piston 27 is slidably installed inside the opening and closing box 8. An air intake folding pipe 23 for adsorbing air is fixedly connected to the lower part of the opening and closing box 8. The suction pipe 23 generates negative pressure suction through the water removal unit, which can remove the air in the opening and closing box 8. As the air in the opening and closing box 8 gradually decreases, it will push the pull-back piston 27 to move inward to the inside of the opening and closing box 8 under the action of atmospheric pressure.

[0037] The side of the opening and closing box 8 has two limiting slots 29 that cooperate with the filter plate 16, and each limiting slot 29 is fixedly installed with a folding sealing plate 28 for sealing between it and the pull-back piston 27. The filter plate 16 is fixedly installed on the pull-back piston 27. When the piston 27 moves, it will drive the filter plate 16 to move synchronously, which will pull the filter plate 16 to slide on the limiting frame 14 and slide out of the filter press frame 10. When the filter plate 16 slides on the limiting frame 14, the sludge adhering to it will be blocked by the limiting frame 14, which can scrape off the sludge adhering to the filter plate 16, so that the sludge will not accumulate on the filter plate 16 and the sludge will be collected more thoroughly.

[0038] When the filter plate 16 slides, it will engage with the limiting groove 29 inside the opening and closing box 8 and move along the limiting groove 29 into the opening and closing box 8. When the pull-back piston 27 moves, it will compress the folding sealing plate 28 so that it is compressed within the limiting groove 29, so that the folding sealing plate 28 always seals the limiting groove 29. Even if the inside of the opening and closing box 8 is always sealed, it will not be affected by the movement of the pull-back piston 27.

[0039] After the sludge on the filter plate 16 has been dewatered, the opening and closing mechanism drives the two filter plates 16 to move, so that the two filter plates 16 are pushed out of the filter press frame 10. At this time, the sludge on the filter plate 16 will automatically fall down, thereby completing the transfer of sludge and performing dewatering treatment again.

[0040] A push spring rod 26 for push-reset is fixedly installed between the pull-back piston 27 and the inner wall of the opening and closing box 8. An air supply valve is provided on the opening and closing box 8. When the push spring rod 26 moves inward to the pull-back piston 27, it will be compressed. After the sludge on the filter plate 16 has fallen, the air supply valve can be opened to automatically draw external air into the opening and closing box 8 for automatic air replenishment. At this time, the air pressure in the opening and closing box 8 decreases, and the push spring rod 26 will automatically extend and reset, thereby driving the pull-back piston 27 to move back, which in turn drives the two filter plates 16 to move back and return to the filter press frame 10 and lock together again, so that the next batch of sludge dewatering process can be carried out.

[0041] Example 3: Refer to Figures 4-8 as well as Figures 14-16 The difference between this embodiment and embodiment two is that the dewatering unit includes a dispersing component and a drying component. The dispersing component is provided with multiple cutting and dispersing wheels 36 for dispersing and compacting the sludge, and the drying component is provided with multiple air blowing pipes 32 for conveying hot air into the sludge.

[0042] The dispersing assembly includes an exhaust duct 11 fixedly installed inside the water removal tank 3, a one-way bearing 24 on the drive roller 19, and the one-way bearing 24 cooperates with the reverse rotation of the drive roller 19. The one-way bearing 24 is rotatably connected to the exhaust duct 11. Multiple impellers 25 for generating negative pressure suction are fixedly installed on the one-way bearing 24, and the multiple impellers 25 are all located inside the exhaust duct 11. The lower ends of the two suction baffles 23 are connected to the exhaust duct 11. Once the sludge on the filter plate 16 has been squeezed out, the servo motor 7 can be started to drive the drive roller 19 to rotate in the opposite direction. The reverse rotation of the drive roller 19 will drive the one-way bearing 24 to rotate (at this time, the one-way bearing 20 does not rotate). The rotation of the one-way bearing 24 will drive the multiple impellers 25 on it to rotate. When the impellers 25 rotate, they will generate negative pressure suction in the air duct 11, and external air can be drawn into the air duct 11 through the air intake baffle 23, thereby generating negative pressure suction on the air intake baffle 23, and then the air in the opening and closing box 8 will be sucked out through the air intake baffle 23.

[0043] An air intake filter is installed on the duct 11 for replenishing air. After the air in the opening and closing box 8 has been completely adsorbed, the intake baffle 23 can be closed. At this time, when the impeller 25 rotates again, it will adsorb external air through the air intake filter to replenish the air in the duct 11.

[0044] In a further embodiment, a stirring mechanism is provided between the one-way bearing 24 and the filter press frame 10. The stirring mechanism includes a linkage roller 33 rotatably installed in the filter press frame 10. A driving helical gear 35 is fixedly installed on the one-way bearing 24, and a driven helical gear 34 that meshes with the driving helical gear 35 is fixedly installed on the linkage roller 33. When the one-way bearing 24 rotates, it will drive the driving helical gear 35 on it to rotate. When the driving helical gear 35 rotates, it will drive the driven helical gear 34 that meshes with it to rotate, which in turn drives the linkage roller 33 to rotate, thus completing the transmission of the output power of the one-way bearing 24.

[0045] Multiple cutting and dispersing wheels 36 are fixedly installed on the linkage roller 33, and multiple cutting and dispersing wheels 36 are located at the lower part of the two filter plates 16. A stirring shovel 13 for stirring sludge is fixedly installed between two adjacent cutting and dispersing wheels 36. When the linkage roller 33 rotates, it drives the multiple cutting and dispersing rollers 36 and the multiple turning and stirring shovels 13 on it to rotate synchronously. When the sludge falls through the filter plate 16 in the filter press frame 10, it will come into contact with the multiple cutting and dispersing rollers 36 and the multiple turning and stirring shovels 13. The cutting and dispersing rollers 36 will break and loosen the sludge that has been squeezed and agglomerated. By working together with the turning and stirring shovels 13, the material is continuously turned over, so that the residual moisture inside the sludge is fully exposed, and the sludge is prevented from piling up, thus achieving full removal of moisture inside the sludge.

[0046] In a further embodiment, the drying assembly includes two heating air guide pipes 30 fixedly installed on the side of the filter press frame 10 for heating air, and each of the two heating air guide pipes 30 and the air duct 11 is fixedly installed with an air blowing pipe 31 for injecting air, and a plurality of air blowing pipes 32 are fixedly connected to the corresponding heating air guide pipes 30, and the air outlet of each air blowing pipe 32 is located inside the filter press frame 10. The air adsorbed in the air duct 11 will be injected into the heating air pipe 30 through the air blower 31. At this time, the heating air pipe 30 will be activated to heat the air inside. The heated air will be blown directly into the filter press frame 10 through the air blowing pipe 32 and will come into full contact with the sludge that has been broken up in the filter press frame 10. This allows for simultaneous contact with the sludge, breaking it up and agitating it, significantly increasing the contact area between the hot air and the sludge, accelerating the evaporation of moisture inside the sludge, making the dewatering of the sludge more uniform and thorough. At the same time, the loosened sludge does not stick to the wall or clump, facilitating smooth discharge, avoiding equipment blockage, significantly improving overall processing efficiency, further enhancing the dewatering effect of the sludge, and achieving the drying treatment of the sludge.

[0047] The filter press frame 10 is provided with a discharge mechanism, which includes a drainage filter plate 17 for filtering sewage, which is fixedly installed at the bottom of the filter press frame 10. A sludge discharge conveyor 5 for discharging sludge is fixedly installed between the filter press frame 10 and the dewatering tank 3, and the sludge discharge conveyor 5 is located on the upper part of the drainage filter plate 17. A drainage component 6 for discharging sewage is fixedly installed between the filter press frame 10 and the dewatering tank 3, and the drainage component 6 is located on the lower part of the drainage filter plate 17. Wastewater generated during the filter press 16 will fall to the lower part of the drain filter plate 17 and be discharged directly through the drain component 6, while the dried and dewatered sludge will accumulate on the upper part of the drain filter plate 17 and be discharged through the sludge conveying component 5.

[0048] A hydraulic push rod is fixedly installed inside the water tank 3, and a mud-pushing plate is slidably installed on the upper part of the drainage filter plate 17. The mud-pushing plate is fixedly connected to the drive end of the hydraulic push rod. When the sludge is discharged, the hydraulic push rod can be activated to drive the mud-pushing plate to move, so that the mud-pushing plate moves on the surface of the drainage filter plate 17, which can push the sludge on the drainage filter plate 17 to move, so that it can be discharged more quickly through the sludge discharge conveyor 5. At the same time, when the mud-pushing plate moves, it will scrape on the drainage filter plate 17, which can scrape off the sludge that is attached and accumulated on the drainage filter plate 17, and prevent the sludge from accumulating on the drainage filter plate 17 and causing blockage.

[0049] The working principle of this filter press is as follows: The sludge to be dewatered by pressure filtration is transported to the filter press frame 10 through the sludge inlet pipe 4 and accumulates on the two filter plates 16 inside the filter press frame 10. At this time, the squeezing component can be activated to drive the pressure plate 12 to move up and down repeatedly. When the pressure plate 12 moves down, it will squeeze the sludge on the filter plate 16, thus squeezing out the sewage in the sludge and letting it fall through the filter plate 16. The reciprocating movement of the pressure plate 12 can achieve continuous squeezing of the sludge, which can efficiently squeeze out the sewage in the sludge and complete the initial dewatering of the sludge.

[0050] After the sludge is initially dewatered, the opening and closing mechanism can be activated to move the two filter plates 16, so that the two filter plates 16 are pushed out of the filter press frame 10. At this time, the sludge on the filter plates 16 will automatically fall down, thereby completing the sludge transfer and undergoing a second dewatering process.

[0051] Once the sludge on the filter plate 16 has been squeezed out, the servo motor 7 can be started to drive the drive roller 19 to rotate in the opposite direction. The reverse rotation of the drive roller 19 will drive the one-way bearing 24 to rotate. The rotation of the one-way bearing 24 will drive the multiple impellers 25 on it to rotate. When the impellers 25 rotate, they will generate negative pressure suction in the air duct 11 and draw external air into the air duct 11 through the air intake baffle 23, thereby generating negative pressure suction on the air intake baffle 23. Then, the air in the opening and closing box 8 will be sucked out through the air intake baffle 23, completing the pushing work of the filter plate 16.

[0052] When the one-way bearing 24 rotates, it drives the active helical gear 35 to rotate. When the active helical gear 35 rotates, it drives the driven helical gear 34 that meshes with it to rotate, which in turn drives the linkage roller 33 to rotate. When the linkage roller 33 rotates, it drives the multiple cutting and dispersing wheels 36 and the multiple turning and stirring shovels 13 on it to rotate synchronously. When the sludge falls through the filter plate 16 in the filter press frame 10, it will come into contact with the multiple cutting and dispersing wheels 36 and the multiple turning and stirring shovels 13. The cutting and dispersing wheels 36 will break and loosen the sludge that has been squeezed and agglomerated. By working with the turning and stirring shovels 13, the material is continuously turned over, so that the residual moisture inside the sludge is fully exposed, and the sludge is prevented from piling up, thus achieving full removal of moisture from the sludge.

[0053] The air adsorbed in the air duct 11 will be injected into the heating air pipe 30 through the air blower 31. At this time, the heating air pipe 30 will be activated to heat the air inside. The heated air will be blown directly into the filter press frame 10 through the air blowing pipe 32 and will come into full contact with the sludge that has been broken up in the filter press frame 10. This allows for simultaneous contact with the sludge, breaking it up and agitating it, significantly increasing the contact area between the hot air and the sludge, accelerating the evaporation of moisture inside the sludge, making the dewatering of the sludge more uniform and thorough. At the same time, the loosened sludge does not stick to the wall or clump, facilitating smooth discharge, avoiding equipment blockage, significantly improving overall processing efficiency, further enhancing the dewatering effect of the sludge, and achieving the drying treatment of the sludge.

[0054] Wastewater generated during the filter press 16 will fall to the lower part of the drain filter plate 17 and be discharged directly through the drain component 6, while the dried and dewatered sludge will accumulate on the upper part of the drain filter plate 17 and be discharged through the sludge conveying component 5.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A filter press device for environmentally friendly mud treatment, comprising a dewatering tank (3) disposed within a protective box (1), characterized in that, Also includes: The filter press (10) is set inside the dewatering tank (3), and the dewatering tank (3) is provided with a sludge inlet pipe (4) for conveying sludge into the filter press (10). The filter press unit is set inside the filter press frame (10) and includes a squeezing component and a filtration component. The lifting component is provided with a water pressure plate (12) for squeezing sludge, and the filtration component is provided with two water filter plates (16) for filtering wastewater. The dewatering unit is located inside the filter press frame (10) and includes a dispersing component and a drying component. The dispersing component is equipped with multiple cutting and dispersing wheels (36) for dispersing and compacting the sludge, and the drying component is equipped with multiple air blowing pipes (32) for conveying hot air into the sludge.

2. The filter press device for environmentally friendly mud treatment according to claim 1, characterized in that, The protective box (1) is equipped with a smart control host (2) on its side. The smart control host (2) is used to control the opening and closing and operation status of the filter press unit and the dewatering unit, so as to realize the automatic removal of sewage in the sludge. Both the protective box (1) and the water removal box (3) are provided with multiple exhaust openings for heat dissipation and ventilation.

3. The filter press device for environmentally friendly mud treatment according to claim 1, characterized in that, The extrusion assembly includes a servo motor (7) fixedly installed on the dewatering tank (3), and a drive roller (19) is fixedly installed on the drive end of the servo motor (7). A one-way bearing (20) is provided on the drive roller (19), and the one-way bearing (20) cooperates with the forward rotation of the drive roller (19). A lifting mechanism is provided on the one-way bearing (20).

4. A filter press device for environmentally friendly mud treatment according to claim 3, characterized in that, The lifting mechanism includes a reciprocating screw (21) fixedly installed on a one-way bearing (20). A ball bearing nut disc (22) is slidably installed in the water removal tank (3) through a limiting slide rod. The ball bearing nut disc (22) cooperates with the reciprocating screw (21). A bent extrusion rod (18) is fixedly installed on the ball bearing nut disc (22). A water pressure plate (12) is fixedly installed on the bent extrusion rod (18). Two lifting telescopic columns (15) for limiting are fixedly installed between the water pressure plate (12) and the top wall of the water removal tank (3).

5. A filter press device for environmentally friendly mud treatment according to claim 4, characterized in that, The filter assembly includes two limiting frames (14) fixedly installed on the outside of the filter press frame (10), and two filter plates (16) are slidably installed in the two limiting frames (14). The filter press frame (10) has two sliding grooves that cooperate with the corresponding filter plates (16), and the two filter plates (16) are interlocked with each other. Both filter plates (16) are equipped with opening and closing mechanisms.

6. A filter press device for environmentally friendly mud treatment according to claim 5, characterized in that, The opening and closing mechanism includes an opening and closing box (8) fixedly installed on the water removal tank (3), a plurality of telescopic limit rods (9) fixedly installed between the filter plate (16) and the side wall of the water removal tank (3), a pull-back piston (27) is slidably installed inside the opening and closing box (8), and the filter plate (16) is fixedly installed on the pull-back piston (27). A push-back spring rod (26) for push-back reset is fixedly installed between the pull-back piston (27) and the inner wall of the opening and closing box (8). The opening and closing box (8) has two limiting slots (29) on its side that cooperate with the filter plate (16), and each limiting slot (29) is fixedly installed with a folding sealing plate (28) for sealing between it and the pull-back piston (27). The lower part of the opening and closing box (8) is fixedly connected to an air intake folding pipe (23) for adsorbing air, and an air replenishment valve is provided on the opening and closing box (8).

7. A filter press device for environmentally friendly mud treatment according to claim 6, characterized in that, The dispersing assembly includes an exhaust duct (11) fixedly installed in the dewatering tank (3). A one-way bearing (24) is provided on the drive roller (19), and the one-way bearing (24) cooperates with the reverse rotation of the drive roller (19). The one-way bearing (24) is rotatably connected to the exhaust duct (11). Multiple impellers (25) for generating negative pressure suction are fixedly installed on the one-way bearing (24), and the multiple impellers (25) are all located inside the exhaust duct (11). The lower ends of the two suction baffles (23) are connected to the exhaust duct (11). An air intake filter for replenishing air is provided on the exhaust duct (11). A stirring mechanism is provided between the one-way bearing (24) and the filter press frame (10).

8. A filter press device for environmentally friendly mud treatment according to claim 7, characterized in that, The agitation mechanism includes a linkage roller (33) rotatably mounted in the filter press frame (10), a driving helical gear (35) fixedly mounted on the one-way bearing (24), and a driven helical gear (34) meshing with the driving helical gear (35) fixedly mounted on the linkage roller (33). Multiple cutting and dispersing wheels (36) are fixedly mounted on the linkage roller (33), and multiple cutting and dispersing wheels (36) are located at the lower part of the two filter plates (16). A turning shovel (13) for turning and agitating sludge is fixedly mounted between two adjacent cutting and dispersing wheels (36).

9. A filter press device for environmentally friendly mud treatment according to claim 8, characterized in that, The drying assembly includes two heating air pipes (30) for heating air, which are fixedly installed on the side of the filter press frame (10). Each of the two heating air pipes (30) and the air duct (11) is fixedly installed with an air injection pipe (31). Multiple air blowing pipes (32) are fixedly connected to the corresponding heating air pipes (30). The air outlet of each air blowing pipe (32) is located inside the filter press frame (10). The filter press frame (10) is provided with a discharge mechanism.

10. A filter press device for environmentally friendly mud treatment according to claim 9, characterized in that, The discharge mechanism includes a drainage filter plate (17) for filtering sewage, which is fixedly installed at the bottom of the filter press frame (10). A sludge discharge conveyor (5) for discharging sludge is fixedly installed between the filter press frame (10) and the dewatering tank (3), and the sludge discharge conveyor (5) is located on the upper part of the drainage filter plate (17). A drainage component (6) for discharging sewage is fixedly installed between the filter press frame (10) and the dewatering tank (3), and the drainage component (6) is located on the lower part of the drainage filter plate (17). A hydraulic push rod is fixedly installed inside the dewatering tank (3). A sludge pusher plate is slidably installed on the upper part of the drainage filter plate (17), and the sludge pusher plate is fixedly connected to the drive end of the hydraulic pusher plate.

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