A drying and filter pressing device for sludge and method thereof

Abstract

The invention relates to the field of sludge treatment, and discloses a drying and filter pressing device for sludge and a method thereof, comprising an equipment box, a feed hopper and a discharge pipe, wherein a feed hopper is installed at the middle of the top of the equipment box, and the bottom end of the equipment box is supported on a support frame, and a first water filter plate and a second water filter plate are arranged on a water filter structure, so that when a flip frame on the water filter structure flips and pours out the sludge after water filtering on the first water filter plate, the second water filter plate can be switched to an upper position, so that when pouring out the sludge, sludge to be treated can continue to be added into the equipment box, and before starting a discharge pump to discharge, two auxiliary plates on an auxiliary structure can be moved and spliced ​​together in the equipment box, so that when discharging, the sludge after filter pressing can continue to be poured onto the auxiliary plate for drying, so that in the process of flipping, pouring and discharging, the sludge filter pressing and drying treatment work can continue to be carried out in the equipment, thereby improving work efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of sludge treatment, and in particular to a drying and filter press device and method for sludge. Background Technology

[0002] Sludge has a complex composition, containing a large number of microorganisms and pathogens, emitting a foul odor, and some also contain heavy metals. Drying and filter press equipment is required when treating sludge.

[0003] In existing sludge drying and filter press equipment, after the pressing is completed, the hydraulic cylinder drives the filter press assembly to move upward, pulling the telescopic hose out of the connector, and then starting the second motor in the motor box.

[0004] The second motor drives the rotating shaft to rotate, which in turn drives the filter press frame to flip. This causes the sludge inside the filter press frame to fall into the drying chamber due to gravity, achieving the effect of preliminary dehumidification of the sludge and improving the sludge drying efficiency. After the pre-treated sludge falls into the drying chamber, the heater is started to heat the drying chamber, which raises the internal temperature of the drying chamber and dries the sludge. The dried sludge is discharged through the discharge pump.

[0005] However, in existing drying and filter press equipment, during the process of rotating and tilting the filter press frame to pour out the filtered sludge, and during the process of starting the discharge pump to discharge the sludge after drying, it is necessary to stop adding sludge to the equipment for drying and filter press operation. This reduces the working efficiency and therefore there is room for improvement. Summary of the Invention

[0006] To address the problems mentioned in the background section, the present invention provides a drying and filter press device and method for sludge.

[0007] In a first aspect, the present invention provides a drying and filter press device for sludge, which adopts the following technical solution:

[0008] A sludge drying and filter press device includes an equipment box, a feed hopper, and a discharge pipe. The feed hopper is installed at the top center of the equipment box, the bottom of the equipment box is supported on a support frame, a discharge pump is installed at the bottom center of the equipment box, the discharge end of the discharge pump is connected to the discharge pipe, the feed end of the discharge pump is connected to the inside of the equipment box, a water filtration structure is provided at the top of the equipment box, an auxiliary structure is provided near the bottom of the equipment box, and a stirring structure is provided at the bottom of the equipment box.

[0009] The auxiliary structure includes openings on the front and rear sides of the equipment box near the bottom. An auxiliary plate movably passes through each of the two openings. Each auxiliary plate has a drive frame secured with screws at two corners protruding from the equipment box. Fixed frames are installed on the left and right sides of the equipment box near the auxiliary plates. A first guide rod is fixedly connected between the inner walls of the front and rear ends of the left fixed frame. A bidirectional screw is rotatably inserted into the right fixed frame, with opposite thread directions on its front and rear sections. One end of each of the two drive frames on the left is movably fitted onto the first guide rod. One end of each of the two drive frames on the right has a threaded groove for the bidirectional screw to pass through. Heaters are installed on the inner walls of the left and right sides of the equipment box at positions above and below the auxiliary plates. A first motor is installed on the rear side of the right drive frame, with one end of the motor's output shaft connected to the bidirectional screw.

[0010] Preferably, the water filtration structure includes a flip-up frame located near the top inside the equipment box; a second motor is installed on the left side of the equipment box near the flip-up frame, with one end of the output shaft of the second motor connected to the flip-up frame; a first filter plate is installed at the top of the inner wall of the flip-up frame; a second filter plate is installed at the bottom of the inner wall of the flip-up frame; a middle plate is installed in the middle of the inside of the flip-up frame; a support cylinder is connected to the middle of the right side of the flip-up frame; a first support plate is movably inserted into the support cylinder; a support rod is connected to the middle of the side of the first support plate away from the flip-up frame; one end of the support rod is fixedly connected to the right inner wall of the equipment box; a drainage structure is provided between the flip-up frame and the equipment box; and a movable structure is provided inside the equipment box above the flip-up frame.

[0011] Preferably, the drainage structure includes a water pump installed on the right side of the equipment box near the position of the flip frame. The water pump's inlet end is connected to a water suction pipe, and one end of the water suction pipe is fixedly passed through a first support plate. The flip frame has water suction holes on both the upper and lower sides of the middle plate on the side near the first support plate. The upper water suction hole is connected to the water suction pipe. The water pump's outlet end is connected to a water delivery pipe, and the bottom end of the water delivery pipe is connected to a water collection tank. The bottom end of the water collection tank is connected to a drain pipe.

[0012] Preferably, the movable structure includes a third motor installed above the left side of the equipment box. One end of the output shaft of the third motor is inserted into the equipment box and connected to a reciprocating lead screw. One end of the reciprocating lead screw is rotatably connected to the left inner wall of the equipment box. A lead screw sleeve is fitted on the reciprocating lead screw, and a movable seat is fixedly fitted on the lead screw sleeve. A second guide rod is movably passed through the movable seat at the end away from the reciprocating lead screw. The two ends of the second guide rod are fixedly connected to the two inner walls of the equipment box. A filter press structure is provided on the movable seat.

[0013] Preferably, vertical grooves are provided on both the front and rear sides of the movable seat. A lifting plate moves through the two vertical grooves. The lifting plate is "H" shaped and its side is close to the groove wall of the vertical groove. Multiple first springs are connected between the lower part of the lifting plate and the movable seat. Connecting strips that move through the movable seat are connected to the lower part of the lifting plate near both ends. Filter plates are connected to the bottom ends of the two connecting strips. Fixing blocks are installed on the upper part of the lifting plate near both ends. First insert rods are provided on the fixing blocks through a guide structure. The first insert rods extend out of the vertical grooves. Guide plates are installed on the inner walls of the front and rear sides of the equipment box near the first insert rods. Multiple guide blocks are installed at equal intervals on the upper part of the guide plates. One end of the first insert rod extends to the top of the guide plate.

[0014] Preferably, the guiding structure includes a groove formed on the top of the fixed block, a slider slidably disposed in the groove, one end of the first insert rod connected to the slider, a second spring connected between the slider and one end wall of the groove, a second insert rod connected to the top of the slider, and a fixing strip provided on the top of the equipment box above the two second insert rods. The fixing strip and the upper inner wall of the equipment box are provided with guide grooves, and the inner walls on both sides of the guide groove are parallel inclined surfaces.

[0015] Preferably, the stirring structure includes a fourth motor installed at the lower left and right sides of the equipment box. The output shaft of the fourth motor is inserted into the equipment box and connected to a rotating drum. The rotating drum is equipped with a transmission structure and has multiple stirring rods. Multiple stirring bars are fixedly passed through the stirring rods.

[0016] Preferably, the transmission structure includes a crossbar inserted into the rotating drum, one end of the crossbar extending out of the rotating drum being connected to a second support plate, the second support plate being fixedly mounted on the equipment box, one end of the rotating drum being sleeved on the second support plate, a support groove being formed on the inner wall of one end of the rotating drum for the other end of the crossbar to be inserted into, and multiple fixed seats being fixedly passed through the inner wall of the rotating drum, each stirring rod rotating through the corresponding fixed seat, a first bevel gear being fixedly sleeved on the end of the stirring rod inserted into the rotating drum, and a second bevel gear being fixedly sleeved on the crossbar at the position corresponding to each stirring rod, the first bevel gear and the second bevel gear being meshed together.

[0017] Secondly, this application provides a method for drying and pressing sludge, employing the following technical solution:

[0018] A method for drying and pressing sludge includes the following steps:

[0019] Step 1: Add the sludge from the feed hopper to the filter structure inside the equipment box;

[0020] Step 2: The sludge on the filter structure is filtered by the filter press structure, and the filtered wastewater is pumped out of the equipment box through the drainage structure.

[0021] Step 3: By flipping the flipping frame on the filter structure, the sludge after pressing is turned over to the lower inner wall of the equipment box, and then heated and dried by the heater;

[0022] Step 4: During the drying process, activate the stirring mechanism to agitate the sludge and prevent it from clumping.

[0023] Step 5: Start the discharge pump and discharge the dried sludge through the discharge pipe.

[0024] In summary, the present invention has the following beneficial technical effects:

[0025] This invention incorporates a filtration structure and an auxiliary structure within the equipment housing. The filtration structure features a first filter plate and a second filter plate. When the tilting frame on the filtration structure tilts to discharge the sludge filtered from the first filter plate, the second filter plate can be moved to the upper position. This allows for the addition of more sludge to be processed into the equipment housing while the sludge is being discharged. Furthermore, before the discharge pump is activated, two auxiliary plates on the auxiliary structure can be moved and joined together within the equipment housing. This allows for the continued discharge of filtered sludge onto the auxiliary plates for drying. Thus, during the tilting and discharge processes, the sludge filtration and drying process continues within the equipment, improving work efficiency.

[0026] The present invention has a moving structure, a filter pressing structure and a guiding structure set above the flip frame inside the equipment box. The moving structure and the filter pressing structure can automatically move up and down during the horizontal movement of the filter pressing plate to perform filter pressing work on the sludge. In addition, the guiding structure can automatically drive the first insertion rod to be pulled out from the guiding plate when the filter pressing plate moves in the opposite direction, so that the filter pressing plate can be moved and reset smoothly.

[0027] This invention utilizes the rotation of the drum and stirring rod in the stirring and transmission structures to stir the sludge during the drying process. Furthermore, the transmission structure ensures that as the stirring rod rotates around the drum's axis, the stirring bars also rotate around the stirring rod's axis on the drum. This results in more thorough stirring of the sludge, improving drying efficiency and reducing sludge clumping during drying, which could hinder normal material feeding. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0029] Figure 2 This is a structural schematic diagram of the left side of the equipment box in an embodiment of the present invention;

[0030] Figure 3 This is an embodiment of the present invention. Figure 2 Enlarged view of the structure at point A;

[0031] Figure 4 This is a schematic diagram of the internal structure of the equipment box in an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the flip frame in an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the internal structure of the flipping frame in an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the stirring structure in an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the internal structure of the rotating drum in an embodiment of the present invention;

[0036] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged view of the structure at point B;

[0037] Figure 10 This is a schematic diagram of the moving structure in an embodiment of the present invention;

[0038] Figure 11 This is a schematic diagram of the structure of the movable seat in an embodiment of the present invention;

[0039] Figure 12 This is an embodiment of the present invention. Figure 11 Enlarged view of the structure at point C;

[0040] Figure 13 This is a schematic diagram of the structure of the guide plate in an embodiment of the present invention;

[0041] Figure 14 This is an embodiment of the present invention. Figure 13 Enlarged view of the structure at point D.

[0042] Explanation of reference numerals in the attached drawings: 1. Equipment box; 2. Feed hopper; 3. Discharge pump; 4. Discharge pipe; 5. Support frame; 6. Opening; 7. Auxiliary plate; 8. Fixing frame; 9. First motor; 10. Drive frame; 11. First guide rod; 12. Heater; 13. Second motor; 14. Tilting frame; 15. First filter plate; 16. Second filter plate; 17. Intermediate plate; 18. Pumping hole; 19. Support cylinder; 20. First support plate; 21. Support rod; 22. Pumping pipe; 23. Water pump; 24. Water delivery pipe; 25. Water collection tank; 26. Drain pipe; 27. Third motor; 28. Reciprocating screw; 29. Second guide rod; 30. Movable seat; 31. Lead screw sleeve; 32. Vertical groove; 33. Lifting plate; 34. First spring; 35. Connecting bar; 36. Filter press plate; 37. First insert rod; 38. Fixing block; 39. Guide plate; 40. Guide block; 41. Slide groove; 42. Sliding block; 43. Second spring; 44. Second insert rod; 45. Guide groove; 46. Fixing bar; 47. Fourth motor; 48. Rotary drum; 49. Stirring rod; 50. Stirring bar; 51. Second support plate; 52. Fixing seat; 53. Crossbar; 54. Support groove; 55. First bevel gear; 56. Second bevel gear. Detailed Implementation

[0043] The following is in conjunction with the appendix Figures 1-14 The present invention will be described in further detail below.

[0044] This invention discloses a drying and filter press device for sludge.

[0045] Reference Figures 1-14 A sludge drying and filter press device includes an equipment box 1, a feed hopper 2, and a discharge pipe 4. The feed hopper 2 is installed at the top center of the equipment box 1. The bottom of the equipment box 1 is supported on a support frame 5. A discharge pump 3 is installed at the bottom center of the equipment box 1. The discharge end of the discharge pump 3 is connected to the discharge pipe 4. The feed end of the discharge pump 3 is connected to the inside of the equipment box 1. A water filtration structure is provided at the top of the equipment box 1. An auxiliary structure is provided near the bottom of the equipment box 1. A stirring structure is provided at the bottom of the equipment box 1.

[0046] The auxiliary structure includes openings 6 on the front and rear sides of the equipment box 1 near the bottom. An auxiliary plate 7 movably passes through each opening 6. Each auxiliary plate 7 has two corners protruding from the equipment box 1 secured with a drive frame 10 by screws. Fixing frames 8 are installed on the left and right sides of the equipment box 1 near the auxiliary plates 7. A first guide rod 11 is fixedly connected between the inner walls of the front and rear ends of the left fixing frame 8. A bidirectional screw is rotatably inserted into the right fixing frame 8, with the threads of the two sections of the bidirectional screw having opposite directions. One end of each of the two drive frames 10 on the left is movably fitted onto the first guide rod 11, and one end of each of the two drive frames 10 on the right has a threaded groove for the bidirectional screw to pass through. Heaters 12 are installed on the inner walls of both sides of the equipment box 1 at the positions above and below the auxiliary plates 7. A first motor 9 is installed on the rear side of the right drive frame 10. One end of the output shaft of the first motor 9 is connected to a bidirectional screw. Before starting the discharge pump 3 to discharge the sludge after filter pressing and drying in the equipment box 1, the first motor 9 can be started to drive the bidirectional screw to rotate. The two sets of drive frames 10 drive the two auxiliary plates 7 to move synchronously towards each other on the equipment box 1 until the two auxiliary plates 7 are spliced ​​together in the equipment box 1. In this way, when discharging, sludge to be treated can continue to be added into the equipment box 1 to continue the filter pressing and drying work, thereby making reasonable use of the discharge time and improving work efficiency.

[0047] See Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 The water filtration structure includes a flip frame 14 located near the top inside the equipment box 1. A second motor 13 is installed on the left side of the equipment box 1 near the flip frame 14. One end of the output shaft of the second motor 13 is connected to the flip frame 14. A first filter plate 15 is installed at the top of the inner wall of the flip frame 14. A second filter plate 16 is installed at the bottom of the inner wall of the flip frame 14. A middle plate 17 is installed in the middle of the flip frame 14. A support cylinder 19 is connected to the middle of the right side of the flip frame 14. A first support plate 20 is movably inserted into the support cylinder 19. A support rod 21 is connected to the middle of the side of the first support plate 20 away from the flip frame 14. One end of the support rod 21 is fixedly connected to the right inner wall of the equipment box 1. A drainage structure is provided between the flip frame 14 and the equipment box 1. A movable structure is provided inside the equipment box 1 at the position above the flip frame 14.

[0048] The drainage structure includes a water pump 23 installed on the right side of the equipment box 1 near the flip frame 14. The inlet of the water pump 23 is connected to a suction pipe 22, one end of which is fixedly passed through a first support plate 20. The flip frame 14, near the first support plate 20, has suction holes 18 on both the upper and lower sides of the middle plate 17. The upper suction hole 18 is connected to the suction pipe 22. A water supply pipe 24 is connected to the outlet of the water pump 23. The bottom end of the water supply pipe 24 is connected to a water collection tank 25, and the bottom end of the water collection tank 25 is connected to a drain. Water pipe 26: After the sludge is pressed and filtered on the first filter plate 15, the water pump 23 can be started to discharge the sludge pressed and filtered out in the tilting frame 14. When the second motor 13 is started to drive the tilting frame 14 to rotate until the first filter plate 15 rotates down to pour out the sludge after pressing and filtering, the second filter plate 16 rotates to the upward position at the same time. This allows sludge to be treated to be added into the equipment box 1 when the sludge after pressing and filtering is poured out, so that the sludge can continue to be pressed and filtered on the second filter plate 16, which further improves the efficiency of sludge treatment.

[0049] The movable structure includes a third motor 27 installed on the upper left side of the equipment box 1. The output shaft of the third motor 27 is inserted into the equipment box 1 and connected to a reciprocating lead screw 28. One end of the reciprocating lead screw 28 is rotatably connected to the inner left wall of the equipment box 1. A lead screw sleeve 31 is fitted on the reciprocating lead screw 28. A movable seat 30 is fixedly fitted on the lead screw sleeve 31. A second guide rod 29 is movably passed through the movable seat 30 at the end away from the reciprocating lead screw 28. The two ends of the second guide rod 29 are fixedly connected to the inner walls of both sides of the equipment box 1. A filter press structure is provided on the movable seat 30.

[0050] Vertical grooves 32 are provided on both the front and rear sides of the movable seat 30. Lifting plates 33 are movably passed through the two vertical grooves 32. The lifting plates 33 are "H" shaped and their sides are close to the groove walls of the vertical grooves 32. Multiple first springs 34 are connected between the lower part of the lifting plates 33 and the movable seat 30. Connecting strips 35 that move through the movable seat 30 are connected to the lower part of the lifting plates 33 near both ends. Filter plates 36 are connected to the bottom ends of the two connecting strips 35. Fixing blocks 38 are installed on the upper part of the lifting plates 33 near both ends. First insert rods 37 are provided on the fixing blocks 38 through a guide structure. The first insert rods 37 pass through the vertical grooves 32. Guide plates 39 are installed on the inner walls of the front and rear sides of the equipment box 1 near the first insert rods 37. Multiple guide blocks 40 are installed on the upper part of the guide plates 39 at equal intervals. One end of the first insert rod 37 extends to the upper part of the guide plate 39.

[0051] The guiding structure includes a groove 41 formed on the fixed block 38, in which a slider 42 is slidably disposed. One end of the first insertion rod 37 is connected to the slider 42. A second spring 43 is connected between the slider 42 and one end wall of the groove 41. A second insertion rod 44 is connected to the top of the slider 42. Fixing strips 46 are provided on the equipment box 1 above the two second insertion rods 44. Guide grooves 45 are formed on both the fixing strips 46 and the upper inner wall of the equipment box 1. The fixing strips 46 increase the depth of the guide grooves 45, allowing the lifting plate 33 to smoothly drive the second insertion rods 44 upward in the guide grooves 45. The inner walls on both sides of the guide groove 45 are parallel inclined surfaces. When the third motor 27 is started to drive the reciprocating screw 28 to rotate, the moving seat 30 drives the filter press plate 36 to move closer to the third motor. The movement of the machine 27 utilizes the inclined wall of one end of the guide groove 45 to guide the second insertion rod 44, causing the second insertion rod 44 to drive the slider 42 to slide in the slide groove 41, causing the second spring 43 to deform, and driving the first insertion rod 37 to move onto the guide plate 39. The sliding of the first insertion rod 37 on the guide block 40, combined with the elastic force of the first spring 34, causes the lifting plate 33 to drive the filter press plate 36 to move automatically up and down to perform sludge filtration. When the moving seat 30 moves to the position closest to the third motor 27 and needs to be reversed and reset, the inclined wall of the other end of the guide groove 45 guides the second insertion rod 44, causing the slider 42 to move in the reverse direction in the slide groove 41, thereby pulling the first insertion rod 37 out of the guide plate 39, allowing the moving seat 30 to smoothly reverse and reset.

[0052] See Figure 1 , Figure 4 , Figure 7 , Figure 8 and Figure 9 The stirring structure includes a fourth motor 47 installed at the lower left and right sides of the equipment box 1. The output shaft of the fourth motor 47 is inserted into the equipment box 1 and connected to a rotating drum 48. The rotating drum 48 has a transmission structure inside and multiple stirring rods 49 are installed on the rotating drum 48. Multiple stirring strips 50 are fixedly passed through the stirring rods 49.

[0053] The transmission structure includes a crossbar 53 inserted into the rotating drum 48. One end of the crossbar 53 extending out of the rotating drum 48 is connected to a second support plate 51. The second support plate 51 is fixedly mounted on the equipment box 1. One end of the rotating drum 48 is fitted onto the second support plate 51. A support groove 54 is provided on the inner wall of one end of the rotating drum 48 for the other end of the crossbar 53 to be inserted into. This improves the support stability of the rotating drum 48 without hindering its normal rotation. Multiple fixed seats 52 are fixedly passed through the inner wall of the rotating drum 48. Each stirring rod 49 rotates through the corresponding fixed seat 52. A support groove 54 is fixedly fitted onto the end of the stirring rod 49 that is inserted into the rotating drum 48. The first bevel gear 55 and the crossbar 53 are each fixedly fitted with a second bevel gear 56 at the position corresponding to each stirring rod 49. The first bevel gear 55 and the second bevel gear 56 are meshed together. When the fourth motor 47 is started to drive the rotating drum 48 and the stirring rod 49 to rotate as a whole, the first bevel gear 55 rolls on the second bevel gear 56, which can drive the stirring rod 49 and the stirring bar 50 to rotate around the stirring rod 49 as the axis. In the process of drying sludge, the sludge is stirred more thoroughly, which improves the efficiency of sludge drying and reduces the occurrence of caking during the sludge drying process, thus affecting the normal discharge work.

[0054] This invention also discloses a method for drying and pressing sludge, comprising the following steps:

[0055] Step 1: Add sludge from feed hopper 2 to the filtration structure inside equipment box 1;

[0056] Step 2: The sludge on the filter structure is filtered by the filter press structure, and the filtered wastewater is pumped out of the equipment box 1 through the drainage structure.

[0057] Step 3: By flipping the flipping frame 14 on the filter structure, the sludge after pressing is turned over to the lower inner wall of the equipment box 1, and then heated and dried by the heater 12.

[0058] Step 4: During the drying process, activate the stirring mechanism to agitate the sludge and prevent it from clumping.

[0059] Step 5: Start the discharge pump 3 and discharge the dried sludge through the discharge pipe 4.

[0060] The implementation principle of a sludge drying and filter press device and method according to an embodiment of the present invention is as follows: First, the sludge to be treated is fed from the feed hopper 2 onto the first filter plate 15 in the equipment box 1. The third motor 27 is started, driving the reciprocating screw 28 to rotate. The screw sleeve 31 drives the moving seat 30 to move along the first guide rod 11 towards the direction close to the third motor 27. The movement of the moving seat 30 causes the second insert rod 44 to slide in the guide groove 45. Guided by the inclined groove wall at the end of the guide groove 45 away from the third motor 27, the second insert rod 44 is pushed to drive the slider 42 to slide in the slide groove 41, stretching the second spring 43 and causing the first insert rod 37 to move onto the guide plate 39. At this time, as the moving seat 30 continues to move... The first insert rod 37 slides sequentially on the guide block 40, and with the elastic force of the first spring 34, the lifting plate 33 can move up and down automatically, causing the filter press plate 36 to move up and down to filter the sludge on the first filter plate 15. When the filter press plate 36 moves to the position closest to the third motor 27, the filter press plate 36 moves out from above the flip frame 14, and at the same time, the sludge filtration work on the first filter plate 15 ends. The water pump 23 is started, and the filtered wastewater is pumped into the water collection tank 25 through the water suction pipe 22 and the water delivery pipe 24, and discharged through the drain pipe 26 on the water collection tank 25. At the same time, the elastic force of the second spring 43 pulls the slider 42 and the second insert rod 44 to move in the opposite direction and reset. Then the second motor 13 is started to drive the flip frame 15 to move up and down automatically. The rotating frame 14 rotates, causing the first filter plate 15 to rotate downwards, pouring the filtered sludge down to the bottom of the equipment box 1. Simultaneously, the second filter plate 16 rotates to the top. At this time, the third motor 27 is started, driving the reciprocating screw 28 to rotate in the opposite direction. The moving seat 30 moves in the opposite direction, using the inclined wall of the guide groove 45 to guide the second insert rod 44, causing the slider 42 to move in the slide groove 41, compressing the second spring 43 and pulling the first insert rod 37 out of the guide plate 39. This allows the moving seat 30 to move in the opposite direction and reset. Sludge can then continue to be added from the feed hopper 2 onto the second filter plate 16 for filtration. Furthermore, when the heater 12 is started to dry the sludge at the bottom of the equipment box 1, the fourth motor 47 can be started to drive the rotating drum 48 and... The stirring rod 49 rotates as a whole. Utilizing the rolling motion of the first bevel gear 55 on the second bevel gear 56, the stirring rod 49 and the stirring bar 50 rotate as a whole around the stirring rod 49 as the axis, thoroughly stirring the sludge and improving drying efficiency. Before discharge, the first motor 9 can be started to drive the bidirectional screw to rotate. The two sets of drive frames 10 synchronously drive the auxiliary plates 7 to move towards each other. When the two auxiliary plates 7 are joined together in the equipment box 1, the discharge pump 3 can be started to discharge the dried sludge from the discharge pipe 4. During the discharge process, the sludge filtered from the second filter plate 16 can continue to be added to the two auxiliary plates 7 to continue the sludge drying process, thereby greatly improving the sludge treatment efficiency.

[0061] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A drying and filter pressing device for sludge, comprising an equipment box (1), a feed hopper (2) and a discharge pipe (4), characterized in that: A feed hopper (2) is installed in the middle of the top of the equipment box (1), the bottom of the equipment box (1) is supported on a support frame (5), a discharge pump (3) is installed in the middle of the bottom of the equipment box (1), the discharge end of the discharge pump (3) is connected to a discharge pipe (4), the feed end of the discharge pump (3) is connected to the inside of the equipment box (1), a water filtering structure is arranged at the top of the equipment box (1), an auxiliary structure is arranged near the bottom of the equipment box (1), and a stirring structure is arranged at the bottom of the equipment box (1); The auxiliary structure comprises openings (6) provided on the front and rear sides of the equipment box (1) near the lower position, auxiliary plates (7) movably passing through the two openings (6), driving frames (10) being fastened by screws at the two corners of each auxiliary plate (7) passing through the equipment box (1), fixed frames (8) being installed at the positions near the auxiliary plates (7) on the left and right sides of the equipment box (1), a first guide rod (11) being fixedly connected between the inner walls of the front and rear ends of the fixed frame (8) on the left, and a first guide rod (11) being fixedly connected between the inner walls of the front and rear ends of the fixed frame (8) on the right. ) is rotatably inserted into the device box (1), wherein the threads of the front and rear sections of the bidirectional screw are in opposite directions, one end of the two driving frames (10) on the left side is movably sleeved on the first guide rod (11), and one end of the two driving frames (10) on the right side is provided with a thread groove for the bidirectional screw to pass through, heaters (12) are installed on the inner walls of the left and right sides of the device box (1) at the upper and lower positions of the auxiliary plate (7), and a first motor (9) is installed on the rear side of the driving frame (10) on the right side, and one end of the output shaft of the first motor (9) is connected to the bidirectional screw; The water filtering structure comprises a flip frame (14) arranged near the top of the equipment box (1); a second motor (13) is installed at a position near the flip frame (14) on the left side of the equipment box (1); one end of the output shaft of the second motor (13) is connected to the flip frame (14); a first water filtering plate (15) is installed at the top of the inner wall of the flip frame (14); a second water filtering plate (16) is installed at the bottom of the inner wall of the flip frame (14); and an intermediate plate (17) is installed in the middle of the flip frame (14). A support tube (19) is connected to the middle of the right side of the flip frame (14), a first support plate (20) is movably inserted into the support tube (19), a support rod (21) is connected to the middle of a side of the first support plate (20) away from the flip frame (14), one end of the support rod (21) is fixedly connected to the right inner wall of the equipment box (1), a drainage structure is provided between the flip frame (14) and the equipment box (1), and a movable structure is provided in the equipment box (1) at a position above the flip frame (14); The movable structure comprises a third motor (27) installed at an upper position on the left side of the equipment box (1); a reciprocating screw (28) is connected to one end of the output shaft of the third motor (27) inserted into the equipment box (1); one end of the reciprocating screw (28) is rotatably connected to the left inner wall of the equipment box (1); a screw sleeve (31) is sleeved on the reciprocating screw (28); a movable seat (30) is fixedly sleeved on the screw sleeve (31); a second guide rod (29) is movably passed through the end of the movable seat (30) away from the reciprocating screw (28); two ends of the second guide rod (29) are fixedly connected to the inner walls of the equipment box (1); and a filter press structure is arranged on the movable seat (30); The movable seat (30) is provided with vertical grooves (32) on both the front and rear side surfaces. A lifting plate (33) is movably passed through the two vertical grooves (32). The lifting plate (33) is in an "H" shape. The side surface of the lifting plate (33) is closely attached to the groove wall of the vertical groove (32). A plurality of first springs (34) are connected between the lower surface of the lifting plate (33) and the movable seat (30). The lower surface of the lifting plate (33) is connected to connecting strips (35) that movably pass through the movable seat (30) near both ends. The bottom ends of the two connecting strips (35) are both A filter press plate (36) is connected, and fixed blocks (38) are installed at positions near both ends of the lifting plate (33), and a first insertion rod (37) is arranged on the fixed block (38) through a guide structure, and the first insertion rod (37) passes through the vertical slot (32), and guide plates (39) are installed at positions near the first insertion rod (37) on the inner walls of the front and rear sides of the equipment box (1), and a plurality of guide blocks (40) are installed at equal intervals on the upper side of the guide plate (39), and one end of the first insertion rod (37) extends to the upper side of the guide plate (39); The guide structure comprises a slide groove (41) provided on the upper surface of the fixed block (38), a slider (42) being slidably arranged in the slide groove (41), one end of the first plug rod (37) being connected to the slider (42), a second spring (43) being connected between the slider (42) and a groove wall at one end of the slide groove (41), a second plug rod (44) being connected on the upper surface of the slider (42), a fixing bar (46) being provided on the upper surface of the equipment box (1) at a position above the two second plug rods (44), a guide groove (45) being provided on the fixing bar (46) and the upper inner wall of the equipment box (1), and inner groove walls on both sides of the guide groove (45) being inclined surfaces parallel to each other.

2. A drying and filter pressing device for sludge according to claim 1, characterized in that: The drainage structure comprises a water pump (23) installed on the right side of the equipment box (1) near the flip frame (14); the water inlet end of the water pump (23) is connected to a water pumping pipe (22); one end of the water pumping pipe (22) is fixedly passed through a first support plate (20); water pumping holes (18) are provided on both upper and lower sides of the middle plate (17) on a side of the flip frame (14) near the first support plate (20); the upper water pumping hole (18) is connected to the water pumping pipe (22); the water outlet end of the water pump (23) is connected to a water supply pipe (24); the bottom end of the water supply pipe (24) is connected to a water collecting tank (25); the bottom end of the water collecting tank (25) is connected to a drainage pipe (26).

3. The drying and filter pressing equipment for sludge according to claim 1, characterized in that: The stirring structure comprises a fourth motor (47) installed below the left and right surfaces of the equipment box (1); an end of an output shaft of the fourth motor (47) inserted into the equipment box (1) is connected to a rotating drum (48); a transmission structure is arranged in the rotating drum (48); a plurality of stirring rods (49) are arranged on the rotating drum (48); and a plurality of stirring bars (50) are fixedly passed through the stirring rods (49).

4. A drying and filter pressing device for sludge according to claim 3, characterized in that: The transmission structure comprises a cross bar (53) inserted into the rotating drum (48); one end of the cross bar (53) passing through the rotating drum (48) is connected to a second support plate (51); the second support plate (51) is fixedly mounted on the equipment box (1); one end of the rotating drum (48) is sleeved on the second support plate (51); a support groove (54) for inserting the other end of the cross bar (53) is provided on the inner wall of one end of the rotating drum (48); a plurality of fixed seats (52) are fixedly passed through the inner wall of the rotating drum (48); each of the stirring rods (49) rotates through a corresponding fixed seat (52); a first bevel gear (55) is fixedly sleeved on one end of the stirring rod (49) inserted into the rotating drum (48); a second bevel gear (56) is fixedly sleeved at a position corresponding to each stirring rod (49) on the cross bar (53); the first bevel gear (55) and the second bevel gear (56) are meshingly connected.

5. A drying and filter pressing method for sludge, characterized in that: The drying and filtering method for sludge uses a drying and filtering device for sludge as described in any one of claims 1 to 4, comprising the following steps: Step 1: Add sludge from the feed hopper (2) to the water filtration structure in the equipment box (1); Step 2: The sludge on the water filter structure is filtered by the filter press structure, and the filtered sewage is pumped out of the equipment box (1) by the drainage structure; Step 3: by turning over the turning frame (14) on the water filter structure, the sludge after the filter press is turned over to the lower inner wall of the equipment box (1), and heated and dried by the heater (12); Step 4: During the drying process, start the stirring structure to stir the sludge to prevent the sludge from agglomerating; Step 5: Start the discharge pump (3) to discharge the dried sludge through the discharge pipe (4).

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