A filter-press dewatering apparatus for use in sludge treatment

Abstract

The application discloses a filter pressing dewatering equipment for sludge treatment, and relates to the technical field of sewage treatment.The filter pressing dewatering equipment comprises a base, a first electric control screw rod is rotationally connected to one end of the inner wall of the base, a guide rod is fixedly connected to the end of the inner wall of the base away from the first electric control screw rod, a waste bin is fixedly connected to the inner wall of the base between the first electric control screw rod and the guide rod, the outer wall of the first electric control screw rod is threadedly connected with a supporting table, and the both ends of the top of the supporting table are fixedly connected with transmission tables.The filter pressing dewatering equipment is characterized in that: the electric control moving table is started, the extrusion plate is driven by the electric control moving table and the fixed filter pressing plate, and is moved to the end of the inner wall of the supporting cylinder away from the fixed plate.During the movement, most of the sludge between the two filter pressing plates loses support and falls into the waste bin, thereby further solving the problem that the traditional filter pressing dewatering equipment for sludge treatment needs multiple filter pressing devices for parallel treatment due to the large sludge treatment demand.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically to a filter press dewatering device used for sludge treatment. Background Technology

[0002] With the acceleration of urbanization and the development of the wastewater treatment industry, the output of excess sludge is increasing year by year. Proper treatment and disposal of sludge has become crucial to ensuring the stable operation of wastewater treatment plants. Sludge contains a large amount of water, pathogens, and difficult-to-decompose organic matter. It is bulky and easily decomposed. Improper treatment can cause serious environmental pollution. Therefore, sludge reduction and harmless treatment have become core needs of the industry. Dewatering is the core step in sludge reduction and directly determines the efficiency and cost of subsequent treatment. Mechanical dewatering methods have become mainstream due to their high efficiency and wide applicability. Among them, filter press dewatering equipment is widely used in various sludge treatments due to its advantages of strong sludge adaptability, high filtration pressure, and high solids content in the sludge cake. However, traditional filter press dewatering equipment has two major technical defects. First, when sludge is fed, the sludge flow resistance is high due to the limitations of the distributor structure and filter plate design, making it difficult to evenly fill the gaps in the filter plates, resulting in uneven sludge distribution between the filter plates. This not only causes significant differences in the moisture content of the sludge cake, making it unable to meet subsequent treatment requirements, but also causes uneven stress on the filter plates, making them prone to "bursting," shortening the life of the filter plates, increasing maintenance costs and downtime. Secondly, the surge in sludge production has greatly increased the demand for treatment, while the single-unit processing capacity of traditional equipment is limited, requiring multiple units to operate in parallel.

[0003] The existing technology has the following problems:

[0004] 1. The existing sludge treatment equipment for filter press dewatering has the problem of requiring multiple filter press units to be connected in parallel due to the large demand for sludge treatment.

[0005] 2. In the existing sludge treatment equipment, the filter press dewatering equipment has a problem during use: when the sludge enters the filter plate, it is difficult for the sludge to fill the gaps between the filter plates, resulting in uneven distribution of sludge between the filter plates. This not only shortens the service life of the filter plates, but also causes poor dewatering effect of the sludge cake. Summary of the Invention

[0006] This invention provides a filter press dewatering device for sludge treatment to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A filter press dewatering device for sludge treatment includes a base. One end of the inner wall of the base is rotatably connected to a first electrically controlled lead screw, and the end of the inner wall of the base away from the first electrically controlled lead screw is fixedly connected to a guide rod. A waste bin is fixedly connected to the inner wall of the base between the first electrically controlled lead screw and the guide rod. A support platform is threadedly connected to the outer wall of the first electrically controlled lead screw, and transmission platforms are fixedly connected to both ends of the top of the support platform. The tops of the two transmission platforms are driven by support cylinders, and a limit frame is rotatably connected to the outer wall of the support cylinder away from the transmission platform. The bottom of the limit frame is slidably connected to the outer wall of the guide rod.

[0009] A hydraulic push rod is fixedly connected to one side of the outer wall of the base, and a discharge assembly is provided at the end of the outer wall of the base away from the hydraulic push rod.

[0010] A further improvement of the technical solution of the present invention is that: the discharge assembly includes a base fixedly connected to the outer wall of the base away from the end of the hydraulic push rod, and a second electric control screw is rotatably connected to the center of the top of the base. The outer wall of the second electric control screw is threadedly connected to a control console, and the bottom of the control console is slidably connected to the top of the base. The inner wall of the control console is provided with a linkage cavity, and the inner wall of the linkage cavity is slidably connected to a guide tube. One end of the outer wall of the guide tube penetrates and is slidably connected to the outer wall of the support cylinder.

[0011] A further improvement of the technical solution of the present invention is that: a transmission motor is fixedly connected to one side of the outer wall of the control console, and a transmission rod is fixedly connected to the output end of the transmission motor, and a first lead screw is fixedly connected to the end of the transmission rod. The end of the first lead screw passes through and is rotatably connected to the inner wall of the linkage cavity, and a push block is threadedly connected to the outer wall of the first lead screw. The outer wall of the push block is slidably connected to the inner wall of the linkage cavity, and one side of the outer wall of the push block is fixedly connected to the end of the guide tube.

[0012] A further improvement of the technical solution of the present invention is that: a guide groove is provided on the top of the console, and a limiting shaft is slidably connected to the inner wall of the guide groove; a connecting block and a limiting block are rotatably connected to both sides of the outer wall of the limiting shaft, and the outer wall of the limiting block is slidably connected to the inner wall of the guide groove.

[0013] A further improvement of the technical solution of the present invention is that: a synchronous belt is driven to the outer wall of the transmission rod, and a second lead screw is driven to one end of the synchronous belt; the end of the second lead screw passes through and is rotatably connected to the inner wall of the guide groove; the outer wall of the second lead screw is threaded to the inner cavity of the connecting block; a translation platform is fixedly connected to the top of the connecting block; the bottom of the translation platform is slidably connected to the top of the control console; a sludge pump is fixedly connected to the top of the translation platform; a discharge pipe is fixedly connected to the input end of the sludge pump; and a storage bin is fixedly connected to the end of the discharge pipe.

[0014] A further improvement of the technical solution of the present invention is that: a discharge hose is fixedly connected to one end of the inner wall of the guide tube, and a slot is opened at the top of the guide tube; one end of the outer wall of the discharge hose contacts the outer wall of the limiting shaft; and the end of the discharge hose is fixedly connected to the output end of the sludge pump.

[0015] A further improvement of the technical solution of the present invention is that: a plurality of mutually symmetrical limiting rods are fixedly connected to one side of the inner wall of the support cylinder, and a fixing plate is fixedly connected to one end of the outer wall of the plurality of limiting rods, and the center of the inner wall of the fixing plate is slidably connected to the outer wall of the guide tube; a pressing plate is slidably connected to one end of the outer wall of the plurality of limiting rods away from the fixing plate, and one side of the outer wall of the pressing plate is in contact with the output end of the hydraulic push rod.

[0016] A further improvement of the technical solution of the present invention is that: a plurality of filter plates are slidably connected between the outer walls of the limiting rods and the pressing plate; drain outlets are provided at both ends of the outer walls of the filter plates; diaphragms are fixedly connected to both ends of the inner walls of the filter plates; a connecting pipe is fixedly connected at the center of the two diaphragms; the inner wall of the connecting pipe is slidably connected to the outer wall of the guide pipe; a fixing frame is fixedly connected between the diaphragms on the inner walls of the filter plates; a plurality of mutually symmetrical airbags are fixedly connected to the inner walls of the fixing frame; an air guide pipe runs through and connects the plurality of airbags; one end of the outer wall of the air guide pipe runs through and is fixedly connected to the inner cavity of the filter plates; and an air inlet box is fixedly connected to the end of the air guide pipe; the outer wall of the air inlet box is fixedly connected to the inner cavity of the filter plates.

[0017] A further improvement of the technical solution of the present invention is that: an electrically controlled telescopic platform is fixedly connected to the top of the inner wall of the support cylinder, and an air guide is fixedly connected to the output end of the electrically controlled telescopic platform, and the output end of the air guide is plugged into the input end of the air inlet box.

[0018] A further improvement of the technical solution of the present invention is that: the inner cavity of the support cylinder is provided with a plurality of mutually symmetrical sliding grooves, and the inner walls of the plurality of sliding grooves are slidably connected to an electrically controlled moving platform, and the top of the electrically controlled moving platform is fixedly connected to an electrically controlled telescopic plate, the output end of the electrically controlled telescopic plate contacts a push plate, and the outer wall of the push plate is fixedly connected to the outer wall of the filter press plate.

[0019] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows:

[0020] 1. This invention provides a filter press dewatering device for sludge treatment. By activating the electrically controlled moving platform, the electrically controlled telescopic plate is moved into the support cylinder to the filter press plate closest to the extrusion plate. Subsequently, the electrically controlled telescopic plate is activated to fix the push plate set on the outer wall of the filter press plate. At this time, the electrically controlled moving platform drives the extrusion plate and the fixed filter press plate to move to the end of the inner wall of the support cylinder away from the fixed plate. During this period, most of the sludge between the two filter press plates loses support and falls into the waste bin. This further solves the problem that traditional filter press dewatering equipment for sludge treatment requires multiple filter press devices to be connected in parallel due to the large demand for sludge treatment.

[0021] 2. This invention provides a filter press dewatering device for sludge treatment. Sludge from the storage silo is discharged into a sludge pump through a discharge pipe located at the bottom center. The sludge is then discharged through a discharge hose at the pump's output end, from a slot at the top of the guide pipe, into the space between two filter press plates. Simultaneously, a transmission table drives a support cylinder to rotate slowly, causing the discharged sludge to move towards the end of the gap between the two filter press plates under the influence of gravity. This further solves the problem in traditional filter press dewatering devices used for sludge treatment where the sludge is difficult to fill the gaps between the filter plates, resulting in uneven sludge distribution, shortened filter plate lifespan, and poor sludge cake dewatering. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the console structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the waste bin structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the support cylinder of the present invention;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the console of the present invention;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the linkage cavity of the present invention;

[0028] Figure 7 This is a schematic diagram of the filter plate structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the disassembled structure of the filter plate of the present invention;

[0030] Figure 9 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0031] Figure 10 For the present invention Figure 7 Enlarged structural diagram at point B.

[0032] In the diagram: 1. Base; 2. First electric control screw; 3. Guide rod; 4. Scrap bin; 5. Support platform; 6. Transmission platform; 7. Support cylinder; 8. Limiting frame; 9. Hydraulic push rod; 10. Base; 11. Second electric control screw; 12. Control console; 13. Linkage chamber; 14. Guide tube; 15. Drive motor; 16. Transmission rod; 17. First screw; 18. Push block; 19. Guide groove; 20. Limiting shaft; 21. Connecting block; 22. Limiting block; 23. Synchronous belt; 24. Second... 25. Lead screw; 26. Translation stage; 27. Sludge pump; 28. Discharge pipe; 29. ​​Storage silo; 30. Discharge hose; 31. Empty trough; 32. Limiting rod; 33. Fixing plate; 34. Extrusion plate; 35. Filter press plate; 36. Drain outlet; 37. Diaphragm; 38. Connecting pipe; 39. Fixing frame; 40. Air bag; 41. Air guide pipe; 42. Air inlet box; 43. Electrically controlled telescopic stage; 44. Air guide outlet; 45. Slide chute; 46. Electrically controlled moving stage; 47. Electrically controlled telescopic plate; 48. Push plate. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figures 1 to 10As shown in the embodiment of the present invention, a filter press dewatering device for sludge treatment includes a base 1. A first electrically controlled lead screw 2 is rotatably connected to one end of the inner wall of the base 1, and a guide rod 3 is fixedly connected to the end of the inner wall of the base 1 away from the first electrically controlled lead screw 2. A waste bin 4 is fixedly connected to the inner wall of the base 1 between the first electrically controlled lead screw 2 and the guide rod 3. A support platform 5 is threadedly connected to the outer wall of the first electrically controlled lead screw 2, and transmission platforms 6 are fixedly connected to both ends of the top of the support platform 5. Support cylinders 7 are drivenly connected to the tops of both transmission platforms 6, and a limit frame 8 is rotatably connected to the outer wall of the support cylinder 7 away from the transmission platform 6. The bottom of the limit frame 8 is connected to the guide rod 3. The outer wall of the guide rod 3 is slidably connected. A hydraulic push rod 9 is fixedly connected to one side of the outer wall of the base 1, and a discharge assembly is provided at the end of the outer wall of the base 1 away from the hydraulic push rod 9. A plurality of mutually symmetrical limiting rods 31 are fixedly connected to one side of the inner wall of the support cylinder 7, and a fixing plate 32 is fixedly connected to one end of the outer wall of the plurality of limiting rods 31. The center of the inner wall of the fixing plate 32 is slidably connected to the outer wall of the guide tube 14. A pressing plate 33 is slidably connected to the end of the outer wall of the plurality of limiting rods 31 away from the fixing plate 32, and one side of the outer wall of the pressing plate 33 is in contact with the output end of the hydraulic push rod 9. The outer walls of the plurality of limiting rods 31 are located between the fixing plate 32 and the pressing plate 33. Several filter press plates 34 are slidably connected. Drainage outlets 35 are provided at both ends of the outer wall of each filter press plate 34. A diaphragm 36 is fixedly connected to both ends of the inner wall of each filter press plate 34. A connecting pipe 37 is fixedly connected at the center of two diaphragms 36, and the inner wall of the connecting pipe 37 is slidably connected to the outer wall of the guide pipe 14. A fixing frame 38 is fixedly connected to the inner wall of the filter press plate 34 between the diaphragms 36. Several symmetrically arranged airbags 39 are fixedly connected to the inner wall of the fixing frame 38. Air guide pipes 40 pass through and connect the airbags 39. One end of the outer wall of the air guide pipe 40 passes through and is fixedly connected to the inner cavity of the filter press plate 34, and the end of the air guide pipe 40 is fixed. An air inlet box 41 is connected, and the outer wall of the air inlet box 41 is fixedly connected to the inner cavity of the filter press plate 34. An electrically controlled telescopic platform 42 is fixedly connected to the top of the inner wall of the support cylinder 7, and an air guide 43 is fixedly connected to the output end of the electrically controlled telescopic platform 42. The output end of the air guide 43 is inserted into the input end of the air inlet box 41. The inner cavity of the support cylinder 7 is provided with several mutually symmetrical sliding grooves 44, and an electrically controlled moving platform 45 is slidably connected to the inner wall of each of the several sliding grooves 44. An electrically controlled telescopic plate 46 is fixedly connected to the top of the electrically controlled moving platform 45. The output end of the electrically controlled telescopic plate 46 contacts a push plate 47, and the outer wall of the push plate 47 is fixedly connected to the outer wall of the filter press plate 34.

[0035] During operation, a first electrically controlled lead screw 2 (all electrically controlled lead screws mentioned in the text consist of a motor and a lead screw, and the first electrically controlled lead screw 2 here is waterproofed, belonging to existing technology) is installed at one end of the inner wall of the base 1, and a guide rod 3 is installed at the end of the inner wall of the base 1 away from the first electrically controlled lead screw 2. A support platform 5 is installed on the outer wall of the first electrically controlled lead screw 2, and transmission platforms 6 (here, the transmission platform 6 consists of multiple symmetrically arranged conveyor wheels and a motor, belonging to existing technology) are installed at both ends of the top of the support platform 5. Since limit frames 8 are installed at both ends of the outer wall of the guide rod 3, and support cylinders 7 are installed in the limit frames 8, the transmission platform 6 is used to achieve the desired effect. While the top of the moving platform 6 supports one end of the support cylinder 7, it drives the support cylinder 7 to rotate within the limiting frame 8. When the sludge is subjected to filter press dewatering, several mutually symmetrical limiting rods 31 are set on one side of the inner wall of the support cylinder 7, and a fixing plate 32 is set on one end of the outer wall of the limiting rod 31. At this time, several filter press plates 34 are installed on the limiting rods 31 in sequence. Then, an extrusion plate 33 is installed on the outer wall of the limiting rod 31 away from the fixing plate 32. At this time, the sludge in the storage bin 28 is discharged into the sludge pump 26 through the discharge pipe 27 set at the bottom center, and the sludge is discharged into the storage bin 28 by the sludge pump 26. The discharge hose 29 (a steel wire reinforced rubber hose used for conventional sludge transport, possessing extensibility and belonging to existing technology) at the output end, guided by the guide pipe 14, allows the sludge to be discharged through the connecting pipe 37 into the space between the filter press plates 34. Simultaneously, the hydraulic push rod 9, located on one side of the outer wall of the base 1, is activated, causing its output end to pass through the support cylinder 7 and apply force to the extrusion plate 33. This causes the extrusion plate 33 to push several filter press plates 34, using the fixed plate 32 as a support point, to compress the sludge between the filter press plates 34. Since diaphragms 36 are provided at both ends of the inner wall of the filter press plates 34, the sludge is discharged from... The wastewater in the sludge is squeezed through the diaphragm 36 and enters the filter press 34. It is discharged through the drain outlets 35 set at both ends of the outer wall of the filter press 34. When the wastewater discharge slows down, the rotation speed of the transmission table 6 is increased, so that the rotation speed of the support cylinder 7 is gradually increased. During this period, the sludge in the gap of the filter press 34 is affected by centrifugal force, and the wastewater remaining in the sludge is gradually thrown out. The thrown-out wastewater drips into the inner wall of the support cylinder 7 and gradually falls into the waste bin 4 set between the first electric control screw 2 and the guide rod 3 on the inner wall of the base 1. The wastewater is then pumped into the container for temporary storage by a pre-prepared liquid pump.

[0036] It should be further explained that, since the base 1 has two pairs of identical support cylinders 7, after the sludge in the first support cylinder 7 has been completely dewatered, the hydraulic push rod 9 is first closed, and the first electric control screw 2 is activated, driving the support platform 5 on its outer wall to pull the first support cylinder 7 to the end of the inner wall of the base 1. The second support cylinder 7 then moves to the center of the base 1 and aligns with the guide pipe 14. When the guide pipe 14 extends into the second support cylinder 7, causing the sludge to fill the gaps between the filter plates 34, the electric control telescopic platform 42 on the top of the inner wall of the support cylinder 7 is closed, allowing the air outlet 4 to... 3. The air detaches from the air inlet box 41, and the gas in the airbag 39, no longer blocked by the air outlet 43, is discharged from the input end of the air inlet box 41. Several symmetrical sliding grooves 44 are provided inside the support cylinder 7, and an electrically controlled moving platform 45 (driven by a motor and waterproofed, moving under the constraint of the sliding grooves 44, which is existing technology) is installed on the inner wall of the sliding grooves 44. An electrically controlled telescopic plate 46 (waterproofed, which is existing technology) is installed on the top of the electrically controlled moving platform 45. Because the outer wall of the filter press plate 34 is provided with several symmetrical push plates 47, thus… After the wastewater in waste bin 4 is cleaned, the electrically controlled moving platform 45 is activated, causing the electrically controlled telescopic plate 46 to move into the support cylinder 7, to the filter press plate 34 closest to the extrusion plate 33. Then, the electrically controlled telescopic plate 46 is activated to fix the push plate 47 on the outer wall of the filter press plate 34. At this time, the electrically controlled moving platform 45 drives the extrusion plate 33 and the fixed filter press plate 34 to move to the end of the inner wall of the support cylinder 7 away from the fixed plate 32. During this period, most of the sludge between the two filter press plates 34 loses its support and falls into the waste bin 4. Simultaneously, the electrically controlled moving platform 45 drives the fixed filter press plate 34 at a relatively fast speed. The sludge is impacted by the filter press plate 34. The vibration and inertia generated by the collision of the two filter press plates 34 cause the stubborn sludge attached to the surface of the diaphragm 36 to fall off. Then, the above operation of moving the filter press plates 34 and colliding with each other is repeated to clean all the filter press plates 34 in the first support cylinder 7. The fallen sludge enters the waste bin 4 for collection. At this time, the second support cylinder 7 is filled with sludge. The above operation of filter pressing and dewatering in the first support cylinder 7 is repeated. This further solves the problem that the traditional filter press dewatering equipment used for sludge treatment requires multiple filter press devices to be connected in parallel due to the large demand for sludge treatment.

[0037] It should be reiterated that by setting a fixing frame 38 between the diaphragms 36 on the inner wall of the filter press plate 34, and setting several symmetrically arranged air bladders 39 on the inner wall of the fixing frame 38, and by setting a through and connected air guide pipe 40 between the air bladders 39, with an air inlet box 41 at the end of the air guide pipe 40, and by setting an electrically controlled telescopic platform 42 (the surface of the electrically controlled telescopic platform 42 is waterproofed, which is existing technology) on the top of the inner wall of the support cylinder 7, and by setting an air guide outlet 43 at the output end of the electrically controlled telescopic platform 42, the air guide outlet 43 is provided. The air outlet 43 is equipped with an internal air pump that draws air from the outside through its input end. The airflow discharged from the output end of the air pump is evenly discharged through the diversion air channel set inside the air outlet 43. When dewatering sludge by pressing, the electrically controlled telescopic platform 42 is activated, so that the output end of the air outlet 43 is inserted into the air inlet box 41, and the airflow is discharged into the air bag 39 through the air inlet box 41 and the air pipe 40. As the air bag 39 inflates, it squeezes the sludge between the filter plates 34, further improving the sludge dewatering efficiency.

[0038] The discharge assembly includes a base 10 fixedly connected to the outer wall of the base 1 at the end away from the hydraulic push rod 9. A second electric control screw 11 is rotatably connected to the center of the top of the base 10. A control console 12 is threadedly connected to the outer wall of the second electric control screw 11, and the bottom of the control console 12 is slidably connected to the top of the base 10. A linkage cavity 13 is formed in the inner wall of the control console 12, and a guide tube 14 is slidably connected to the inner wall of the linkage cavity 13. One end of the outer wall of the guide tube 14 penetrates and is slidably connected to the outer wall of the support cylinder 7. A drive motor 15 is fixedly connected to one side of the wall, and a drive rod 16 is fixedly connected to the output end of the drive motor 15. A first lead screw 17 is fixedly connected to the end of the drive rod 16. The end of the first lead screw 17 passes through and is rotatably connected to the inner wall of the linkage cavity 13. A push block 18 is threadedly connected to the outer wall of the first lead screw 17. The outer wall of the push block 18 is slidably connected to the inner wall of the linkage cavity 13. One side of the outer wall of the push block 18 is fixedly connected to the end of the guide tube 14. A guide groove 19 is provided on the top of the control console 12. The inner wall of the guide groove 19 is slidably connected to a limiting shaft 20. Connecting blocks 21 and limiting blocks 22 are rotatably connected to both sides of the outer wall of the limiting shaft 20. The outer wall of the limiting block 22 is slidably connected to the inner wall of the guide groove 19. A synchronous belt 23 is drive-connected to the outer wall of the transmission rod 16, and a second lead screw 24 is drive-connected to one end of the synchronous belt 23. The end of the second lead screw 24 penetrates and is rotatably connected to the inner wall of the guide groove 19. The outer wall of the second lead screw 24 is threadedly connected to the inner cavity of the connecting block 21, and a translation stage is fixedly connected to the top of the connecting block 21. 25, and the bottom of the translation platform 25 is slidably connected to the top of the control console 12. The top of the translation platform 25 is fixedly connected to the sludge pump 26, and the input end of the sludge pump 26 is fixedly connected to the discharge pipe 27. The end of the discharge pipe 27 is fixedly connected to the storage bin 28. One end of the inner wall of the guide pipe 14 is fixedly connected to the discharge hose 29, and the top of the guide pipe 14 is provided with a slot 30. One end of the outer wall of the discharge hose 29 contacts the outer wall of the limiting shaft 20, and the end of the discharge hose 29 is fixedly connected to the output end of the sludge pump 26.

[0039] During operation, a base 10 is installed on the outer wall of the base 1 at the end away from the hydraulic push rod 9, and a second electric control screw 11 is installed at the center of the top of the base 10. When the two support cylinders 7 are switched, the second electric control screw 11 is activated, causing the control console 12 to move on the top of the base 10. A linkage cavity 13 is provided on the inner wall of the control console 12, and a guide pipe 14 is provided on the inner wall of the linkage cavity 13. Since a discharge hose 29 is provided at one end of the inner wall of the guide pipe 14, and a trough 30 is provided at the top of the guide pipe 14, sludge dewatering is carried out. The drive motor 15, located on one side of the outer wall of the control console 12, is activated, causing the drive rod 16 at its output end to rotate. The drive rod 16 then drives the first lead screw 17 at its end, which in turn moves the push block 18, located on its outer wall, within the linkage cavity 13. Since one side of the push block 18's outer wall is connected to the end of the guide tube 14, the rotation of the first lead screw 17 causes the guide tube 14 to pull the discharge hose 29 into the support cylinder 7, passing through the fixed plate 32 and several filter plates 34, until it moves to the side closest to the extrusion plate 33. Between the two filter plates 34, sludge from the storage silo 28 is discharged into the sludge pump 26 through the discharge pipe 27 located at the bottom center. The sludge then flows through the discharge hose 29 at the output end of the sludge pump 26 and into the gap between the two filter plates 34 via the empty trough 30 at the top of the guide pipe 14. Simultaneously, the transmission table 6 drives the support cylinder 7 to rotate slowly, causing the discharged sludge to move towards the end of the gap between the two filter plates 34 under the influence of gravity. As the sludge continues to be discharged, the sludge in the gap is squeezed against each other until a small amount of wastewater flows through. When the drain outlet 35 on the outer wall of the filter plate 34 leaks out, the drive motor 15 controls the push block 18 through the first lead screw 17 to move the guide pipe 14 to pull the discharge hose 29 to the gap of the next filter plate 34. The above-mentioned sludge filling operation is repeated, which further solves the problem that in the traditional sludge treatment filter dewatering equipment, it is difficult for the sludge to fill the gap between the filter plates when it enters the filter plate, resulting in uneven sludge distribution between the filter plates. This not only shortens the service life of the filter plates, but also causes poor sludge cake dewatering effect.

[0040] It should be reiterated that by setting a guide groove 19 at the top of the control console 12, and setting a limiting shaft 20 on the inner wall of the guide groove 19, and setting connecting blocks 21 and limiting blocks 22 on both sides of the outer wall of the limiting shaft 20, and because the outer wall of the transmission rod 16 is provided with a synchronous belt 23 (here the synchronous belt 23 is composed of a synchronous pulley and a toothed belt, which is the prior art), and the end of the synchronous belt 23 is provided with a second lead screw 24, the second lead screw 24 drives the connecting blocks 21, so that the limiting shaft 20 is in... Guided by the limiting block 22, it moves in the guide groove 19. By setting a translation platform 25 on the top of the connecting block 21 and using the translation platform 25 to support the sludge pump 26, when the guide pipe 14 drives the discharge hose 29 to reset, the limiting shaft 20 moves synchronously with the guide pipe 14. The outer wall of the limiting shaft 20 pulls and limits the outer wall of the discharge hose 29, avoiding the discharge hose 29 from getting tangled and knotted during reciprocating movement, thus preventing damage to the discharge hose 29.

[0041] The working principle of the filter press dewatering equipment used in this sludge treatment will be explained in detail below.

[0042] like Figures 1 to 10As shown, a first electrically controlled lead screw 2 is installed at one end of the inner wall of the base 1, and a guide rod 3 is installed at the end of the inner wall of the base 1 away from the first electrically controlled lead screw 2. A support platform 5 is installed on the outer wall of the first electrically controlled lead screw 2, and transmission platforms 6 are installed at both ends of the top of the support platform 5. Since both ends of the outer wall of the guide rod 3 are provided with limit frames 8, and the limit frames 8 are provided with support cylinders 7, the top of the transmission platform 6 supports one end of the support cylinder 7 while driving the support cylinder 7 to rotate in the limit frames 8. When the sludge is dewatered by filter pressing, several mutually symmetrical limit rods 31 are installed on one side of the inner wall of the support cylinder 7, and a fixing plate 32 is installed at one end of the outer wall of the limit rods 31. At this time, several filter presses are dewatered. Plates 34 are sequentially installed on limiting rods 31. Then, a squeezing plate 33 is installed on the outer wall of the limiting rods 31, away from the fixed plate 32. At this time, sludge from the storage bin 28 is discharged into the sludge pump 26 through the discharge pipe 27 located at its bottom center. The sludge is then discharged into the discharge hose 29 located at its output end by the sludge pump 26. Pulled by the guide pipe 14, the sludge is discharged through the connecting pipe 37 into the spaces between the filter plates 34. Simultaneously, the hydraulic push rod 9 located on one side of the outer wall of the base 1 is activated, causing its output end to pass through the support cylinder 7 and apply force to the squeezing plate 33. This causes the squeezing plate 33 to push several filter plates 34, and with the fixed plate 32 as a support point, it squeezes the sludge between the filter plates 34. Because diaphragms 36 are provided at both ends of the inner wall of the filter press plate 34, the wastewater in the sludge is forced through the diaphragms 36 by compression and enters the filter press plate 34. It is then discharged through the drain outlets 35 provided at both ends of the outer wall of the filter press plate 34. When the wastewater discharge slows down, the rotation speed of the transmission table 6 is increased, so that the rotation speed of the support cylinder 7 is gradually increased. During this period, the sludge in the gaps of the filter press plate 34 is affected by centrifugal force, which gradually causes the residual wastewater in the sludge to be thrown out. The thrown-out wastewater drips into the inner wall of the support cylinder 7 and gradually falls into the waste bin 4 located between the first electric control screw 2 and the guide rod 3 on the inner wall of the base 1. The wastewater is then temporarily stored in the container by a pre-prepared liquid pump. A fixing frame 38 is set between the diaphragms 36, and several symmetrical airbags 39 are set on the inner wall of the fixing frame 38. An air guide pipe 40 is set between the airbags 39 and is connected through them. An air inlet box 41 is set at the end of the air guide pipe 40. Since an electrically controlled telescopic platform 42 is set at the top of the inner wall of the support cylinder 7, and an air guide outlet 43 is set at the output end of the electrically controlled telescopic platform 42, when the sludge is dewatered by pressure filtration, the electrically controlled telescopic platform 42 is activated, so that the output end of the air guide outlet 43 is inserted into the air inlet box 41, and the airflow is discharged into the airbags 39 through the air guide pipe 40 through the air inlet box 41. As the airbags 39 continue to inflate, the sludge between the filter plates 34 is squeezed, further improving the sludge dewatering efficiency.

[0043] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A filter press dewatering device for sludge treatment, comprising a base (1), characterized in that: One end of the inner wall of the base (1) is rotatably connected to a first electric control screw (2), and the end of the inner wall of the base (1) away from the first electric control screw (2) is fixedly connected to a guide rod (3). The inner wall of the base (1) is fixedly connected to a waste bin (4) between the first electric control screw (2) and the guide rod (3). The outer wall of the first electric control screw (2) is threadedly connected to a support platform (5), and the two ends of the top of the support platform (5) are fixedly connected to a transmission platform (6). The tops of the two transmission platforms (6) are all connected to a support cylinder (7), and the outer wall of the support cylinder (7) away from the transmission platform (6) is rotatably connected to a limit frame (8). The bottom of the limit frame (8) is slidably connected to the outer wall of the guide rod (3). A hydraulic push rod (9) is fixedly connected to one side of the outer wall of the base (1), and a discharge assembly is provided at the end of the outer wall of the base (1) away from the hydraulic push rod (9); The discharge assembly includes a base (10) fixedly connected to the outer wall of the base (1) at one end away from the hydraulic push rod (9), and a second electric control screw (11) is rotatably connected to the center of the top of the base (10). The outer wall of the second electric control screw (11) is threadedly connected to a control console (12), and the bottom of the control console (12) is slidably connected to the top of the base (10). The inner wall of the control console (12) is provided with a linkage cavity (13), and the inner wall of the linkage cavity (13) is slidably connected to a guide tube (14). One end of the outer wall of the guide tube (14) is penetrating and slidably connected to the outer wall of the support cylinder (7). A drive motor (15) is fixedly connected to one side of the outer wall of the control console (12), and a drive rod (16) is fixedly connected to the output end of the drive motor (15). A first lead screw (17) is fixedly connected to the end of the drive rod (16). The end of the first lead screw (17) passes through and is rotatably connected to the inner wall of the linkage cavity (13). A push block (18) is threadedly connected to the outer wall of the first lead screw (17). The outer wall of the push block (18) is slidably connected to the inner wall of the linkage cavity (13). One side of the outer wall of the push block (18) is fixedly connected to the end of the guide tube (14). One end of the inner wall of the guide pipe (14) is fixedly connected to the discharge hose (29), and the top of the guide pipe (14) is provided with a slot (30). One end of the outer wall of the discharge hose (29) is in contact with the outer wall of the limiting shaft (20), and the end of the discharge hose (29) is fixedly connected to the output end of the sludge pump (26). A plurality of mutually symmetrical limiting rods (31) are fixedly connected to one side of the inner wall of the support cylinder (7), and a fixing plate (32) is fixedly connected to one end of the outer wall of the plurality of limiting rods (31). The center of the inner wall of the fixing plate (32) is slidably connected to the outer wall of the guide tube (14). A pressing plate (33) is slidably connected to one end of the outer wall of the plurality of limiting rods (31) away from the fixing plate (32). One side of the outer wall of the pressing plate (33) is in contact with the output end of the hydraulic push rod (9). A plurality of filter plates (34) are slidably connected between the outer wall of the plurality of limiting rods (31) and the fixing plate (32) and the pressing plate (33). The transmission platform (6) is composed of multiple symmetrical conveying wheels and motors. The transmission platform (6) uses the conveying wheels to drive the support cylinder (7) to rotate slowly, and the sludge fills the gap between the two filter plates (34) under the influence of gravity.

2. The filter press dewatering equipment for sludge treatment according to claim 1, characterized in that: The top of the console (12) is provided with a guide groove (19), and the inner wall of the guide groove (19) is slidably connected to a limiting shaft (20). The two sides of the outer wall of the limiting shaft (20) are respectively rotatably connected to a connecting block (21) and a limiting block (22), and the outer wall of the limiting block (22) is slidably connected to the inner wall of the guide groove (19).

3. The filter press dewatering equipment for sludge treatment according to claim 2, characterized in that: The outer wall of the transmission rod (16) is connected to a synchronous belt (23), and one end of the synchronous belt (23) is connected to a second lead screw (24). The end of the second lead screw (24) passes through and is rotatably connected to the inner wall of the guide groove (19). The outer wall of the second lead screw (24) is threadedly connected to the inner cavity of the connecting block (21). The top of the connecting block (21) is fixedly connected to a translation platform (25), and the bottom of the translation platform (25) is slidably connected to the top of the control console (12). The top of the translation platform (25) is fixedly connected to a sludge pump (26), and the input end of the sludge pump (26) is fixedly connected to a discharge pipe (27). The end of the discharge pipe (27) is fixedly connected to a storage bin (28).

4. The filter press dewatering equipment for sludge treatment according to claim 1, characterized in that: The filter press plate (34) has drain outlets (35) at both ends of its outer wall, and diaphragms (36) are fixedly connected to both ends of its inner wall. A connecting pipe (37) is fixedly connected to the center of the two diaphragms (36), and the inner wall of the connecting pipe (37) is slidably connected to the outer wall of the guide pipe (14). A fixing frame (38) is fixedly connected between the diaphragms (36) on the inner wall of the filter press plate (34), and a number of mutually symmetrical airbags (39) are fixedly connected to the inner wall of the fixing frame (38). A guide pipe (40) runs through and connects the number of airbags (39). One end of the outer wall of the guide pipe (40) runs through and is fixedly connected to the inner cavity of the filter press plate (34), and an air inlet box (41) is fixedly connected to the end of the guide pipe (40). The outer wall of the air inlet box (41) is fixedly connected to the inner cavity of the filter press plate (34).

5. The filter press dewatering equipment for sludge treatment according to claim 1, characterized in that: The top of the inner wall of the support cylinder (7) is fixedly connected to an electric telescopic platform (42), and the output end of the electric telescopic platform (42) is fixedly connected to an air guide (43), and the output end of the air guide (43) is plugged into the input end of the air inlet box (41).

6. The filter press dewatering equipment for sludge treatment according to claim 5, characterized in that: The inner cavity of the support cylinder (7) is provided with several mutually symmetrical sliding grooves (44), and the inner walls of the several sliding grooves (44) are slidably connected to an electrically controlled moving platform (45). The top of the electrically controlled moving platform (45) is fixedly connected to an electrically controlled telescopic plate (46). The output end of the electrically controlled telescopic plate (46) contacts a push plate (47), and the outer wall of the push plate (47) is fixedly connected to the outer wall of the filter press plate (34).

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