Bottom drying type sludge drying device

Abstract

The invention relates to the technical field of sludge drying treatment, and discloses a bottom drying type sludge drying device which comprises a drying chamber, a feed port is formed in the top of the drying chamber, an exhaust port is formed in the upper part of one side of the drying chamber, and a discharge port is formed in the lower part of the side edge of the drying chamber below the exhaust port; a water outlet is formed in one side of the bottom of the drying chamber, a bottom box is arranged at the bottom in the drying chamber, an air inlet pipe is connected to the bottom of the bottom box and penetrates through the drying chamber, a cover plate is arranged at the top of the bottom box, and a plurality of communicating pipes are transversely arranged in the middle of the cover plate; a heating device is arranged at the bottom in the bottom box, the heating device is of an existing structure, an overturning part is arranged above the bottom box, and the communicating pipe is connected with the overturning part; a curve crushing part is arranged at the top in the drying chamber; the curve crushing part comprises a driving assembly, a curve guide plate is arranged on the driving assembly, and a group of pulleys are arranged in a curve groove of the curve guide plate, so that the contact time of gas and sludge is prolonged, and the retention time of sludge drying is prolonged.

Description

Technical Field

[0001] This invention relates to the field of sludge drying technology, and more specifically, to a bottom-drying sludge drying device. Background Technology

[0002] Wastewater treatment plants generate large amounts of sludge during the wastewater treatment process. To treat this sludge, plants typically use thickening or dewatering methods to reduce its moisture content from over 90% to 60-80%. The treated sludge is then landfilled, solidified, or dried. Landfilling can easily lead to sludge fermentation and secondary environmental pollution. Existing solidification or drying equipment is inefficient, energy-intensive, has poor volume reduction effects, and is difficult to implement for subsequent treatment.

[0003] Chinese utility model patent CN203319838U discloses a sludge solidification mixing machine. This mixer reduces the moisture content of the sludge by mixing dry powder into it, which not only increases the amount of sludge but also renders the solidified sludge unusable.

[0004] Existing equipment for sludge drying often uses unidirectional flat drying or linear crushing, which means that the hot airflow can only contact the surface of the sludge, making it difficult for internal moisture to evaporate. This requires extending the drying time and can easily lead to uneven drying when clumps form. Summary of the Invention

[0005] The technical objective of this invention is to address the above-mentioned shortcomings by providing a bottom-drying sludge drying device to solve the problems mentioned above.

[0006] The technical solution of this invention is implemented as follows:

[0007] A bottom-drying sludge drying device includes a drying chamber with a feed inlet at the top, an exhaust port on the upper side of one side, and a discharge port below the exhaust port on the lower side of the drying chamber. A drain outlet is located on one side of the bottom of the drying chamber. A bottom box is located at the bottom of the drying chamber, with an air inlet pipe connected to the bottom of the bottom box, penetrating the drying chamber. A cover plate is located on the top of the bottom box, with several connecting pipes horizontally arranged in the middle of the cover plate. A heating device (a conventional structure) is located at the bottom of the bottom box. A tilting section is located above the bottom box, connected to the connecting pipes. The tilting section is activated by the reciprocating tilting action of a tilting plate. The moving sludge impacts the inner wall of the drying chamber, while the ratchet on the surface of the flip plate punctures the sludge, allowing hot airflow to fully penetrate the gaps between the sludge particles. A curved crushing section is located at the top of the drying chamber. The curved crushing section includes a drive assembly with a curved guide plate. A set of pulleys is installed in the curved groove of the curved guide plate. The bottom of the pulleys has a folding structure, which is connected to the drive assembly. Several crushing rollers are installed on the folding structure. The folding structure drives the crushing rollers to reciprocate along the curved guide plate through a cross-connecting rod. During the movement, the crushing rollers crush and grind the sludge and cause the sludge to roll laterally.

[0008] Preferably, the drive assembly includes a motor three, which is fixed to the top side of the drying chamber. The bottom of the motor three is provided with an output shaft one, and the bottom of the output shaft one is provided with a drive plate. The other side of the bottom of the drive plate is provided with a limiting rod one, and a U-shaped plate one is provided outside the limiting rod one. A connecting plate one is provided in the middle of one side of the U-shaped plate one, and a U-shaped plate two is provided on the side of the connecting plate one away from the U-shaped plate one. The U-shaped plate two is provided with a matching limiting rod two, and the limiting rod two is connected to the folding structure. The top of the connecting plate one is provided with an inverted convex guide slider near the center, and the inverted convex guide slider is located in the guide groove at the bottom of the curved guide plate.

[0009] Preferably, the curved guide plate is provided with support columns on both sides of the top, the top of the support columns is fixed to the top of the drying chamber, and one end of the curved guide plate is provided with a column, through which the output shaft passes.

[0010] Preferably, the folding structure consists of several connecting rods 1 and connecting rods 2. Each pulley has a set of symmetrical connecting rods 1 at its bottom. The corresponding side ends of the connecting rods 1 are hinged by several sets of cross-connecting rods 2. The middle of the cross-connecting rods 2 is movably connected by a pivot. The top of the limiting rod 2 is connected to the intersection of the first set of cross-connecting rods 2 on the left side.

[0011] Preferably, the tilting section includes a partition located above the bottom box. The top of the partition has a set of symmetrical horizontal U-plates one and two. Several through holes are located on the partition between horizontal U-plates one and two, communicating with a connecting pipe. Hot airflow is transported upwards through these through holes to the area below the tilting plate. When the tilting plate tilts, it simultaneously carries the hot airflow, ensuring full contact with the crushed sludge. A tilting plate is located between horizontal U-plates one and two. The outer ends of both horizontal U-plates one and two are fixedly connected to the top of the partition via a first seat. The top two sides of horizontal U-plate two have slots one and two respectively. A longitudinal U-plate two is located at the center of the top of horizontal U-plate two, between slots one and two. A section is provided in the middle of U-plate 2. Frames are provided at the bottom of both sides of the upper longitudinal U-plate 2, and the bottom of the frames is fixed to the top of both sides of the transverse U-plate 2. A longitudinal U-plate 1 is provided at the top center of the transverse U-plate 1. Slider 1 is provided on the side ends of both sides of the flip plate, which cooperates with the inner grooves of transverse U-plate 1 and transverse U-plate 2. Slider 1 is connected to the flip plate through a movable shaft. Slider 4 is provided in the middle of both sides of the flip plate, which cooperates with longitudinal U-plate 1 and longitudinal U-plate 2. Slider 4 is movably connected to the side of the flip plate. An auxiliary power unit is connected to the side of the flip plate near the side slider 1. The auxiliary power unit is installed on the partition. An elastic buffer is provided between slider 4 and the groove walls of longitudinal U-plate 1 and longitudinal U-plate 2 to ensure smooth reversal of the flip plate.

[0012] Preferably, the auxiliary power unit includes a second motor, which is installed at the center of the top side of the partition. The output end of the second motor is connected to an output shaft, and the end of the output shaft away from the second motor is connected to the center of the side of the transverse U-plate. A set of second seats is provided on both sides of the output shaft at the middle of the outer side of the transverse U-plate. A connecting arm is sleeved on the output shaft, and a shaft is provided at the end of the connecting arm away from the output shaft. The inner end of the shaft is movably connected to the side of the flip plate.

[0013] Preferably, the top right side of slot one and the top left side of slot two are provided with inclined surface one; the bottom wall of the fault in the middle of the longitudinal U plate two is provided with downward inclined surface two.

[0014] Preferably, the top and bottom of the flip plate are provided with several hemispherical grooves, and ratchet wheels that can rotate 360 ​​degrees are provided in the hemispherical grooves. The hemispherical grooves on the flip plate pass through the top and bottom of the flip plate to form a connecting hole.

[0015] Preferably, the top two sides of the partition are provided with boxes, through which the second motor, the first seat and the second seat pass; the inner side of the box is provided with several second air vents; the bottom of the box is provided with several first air vents, which connect the inside of the box to the bottom of the partition; a coil frame is mounted above the first air vent, and a heating coil is wound on the coil frame.

[0016] Preferably, two tracks are provided on both sides of the bottom wall of the bottom box. A set of sliding blocks are provided on the tracks. A trapezoidal push block is provided on the top of the sliding block. A track side plate is provided on the top slope of the trapezoidal push block. A matching track is provided on the inner side of the track side plate. A trapezoidal push block is provided between the tops of the two tracks. The top of the trapezoidal push block is fixed to the bottom of the cover plate. Tracks are provided on both sides of the trapezoidal push block. An elastic sealing gasket is provided on the top edge of the cover plate and the bottom box. When the cover plate is raised, the size of the opening is controlled by the elastic sealing gasket to adjust the hot air discharge. A matching sliding block is provided on the track. The side of the sliding block away from the track is fixed to the inner wall of the bottom box. A connecting plate is provided between the sides of the trapezoidal push blocks. A threaded sleeve is provided in the middle of the connecting plate. A matching threaded rod is inserted in the threaded sleeve. One end of the threaded rod passes through the bottom box and the drying chamber and is connected to a motor installed at the lower part of the outer side of the drying chamber. The motor is fixed to the side of the drying chamber through a convex seat.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0018] 1. By incorporating a curved crushing section and a turning section within the drying chamber, when sludge enters the chamber, the curved crushing section propels the sludge in a transverse curved motion, causing it to roll laterally along the curve. This rolling motion increases the contact time between the gas and the sludge, enhancing the sludge drying time. Simultaneously, the curved crushing section crushes the sludge as it passes through. Then, with the operation of the turning section, the falling sludge is lifted and impacts the inner wall, further crushing the sludge during drying. This enhances the sludge crushing effect, and the crushed sludge also improves the drying efficiency, reducing solid waste pollution and improving environmental protection.

[0019] 2. When the threaded rod inside the bottom box drives the trapezoidal pusher block two to push the cover plate upward, the dry gas transported from the bottom box will rush into the box through the opened cover plate. The amount of gas received in the box will increase, and the amount of gas transmitted out will increase, thus increasing the drying properties of the sludge above.

[0020] 3. Compared with the existing technology, this device can drive the sludge to roll and break through the curve through the curve crushing section, and the reciprocating turning section, in conjunction with the ratchet, increases the effect of breaking up agglomerates, thus greatly shortening the drying time.

[0021] 4. Compared with the existing technology, this device uses a curved guide plate and a folded structure to drive the crushing roller to make an arc-shaped crushing motion, which has a crushing effect and can also drive the sludge to roll laterally, avoiding the phenomenon of separation between crushing and drying.

[0022] 5. Compared with the existing technology, this flipping part can not only puncture the clumps when flipping, but also form a local vortex. At the same time, the hemispherical groove connecting hole allows the hot airflow below to act directly on the bottom surface of the sludge, realizing bidirectional drying from top to bottom and improving the drying effect.

[0023] 6. Compared with the existing technology, this device delivers the sludge to the tilting section through the connecting pipe and through hole. With the rotation of the tilting plate, the hot airflow can be applied to the sludge, avoiding the problem of heat loss in traditional devices. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the curve break section according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of a folding structure according to an embodiment of the present invention;

[0028] Figure 4 This is an exploded view of the connection between the bottom box and the partition according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the flip-plate connection structure according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the transverse U-plate connection structure according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the connection structure between trapezoidal push block one and trapezoidal push block two according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the connection structure between the connecting plate and the threaded rod according to an embodiment of the present invention.

[0033] In the picture:

[0034] 1. Drying chamber; 2. Feed inlet; 3. Exhaust outlet; 4. Discharge outlet; 5. Bottom box; 6. Air inlet pipe; 7. Cover plate; 8. Connecting pipe; 9. Tilting section; 10. Curved crushing section; 11. Curved guide plate; 12. Pulley; 13. Crushing roller; 14. Motor 3; 15. Drive plate; 16. Limiting rod 1; 17. Recurved plate 1; 18. Connecting plate 1; 19. Recurved plate 2; 20. Limiting rod 2; 21. Inverted convex guide slider; 22. Support column; 23. Column; 24. Connecting rod 1; 25. Connecting rod 2; 26. Partition; 27. Transverse U-plate 1; 28. Transverse U-plate 2; 29. ​​Through hole; 30. Groove 1; 31. Groove 2; 32. Longitudinal U-plate 2; 33. Break 34. Frame; 35. Longitudinal U-plate 1; 36. Flip plate; 37. Slider 1; 38. Motor 2; 39. Output shaft 2; 40. Second seat; 41. Connecting arm; 42. Shaft; 43. Inclined surface 1; 44. Inclined surface 2; 45. Hemispherical groove; 46. Ratchet; 47. Box body; 48. First seat; 49. Vent 2; 50. Vent 1; 51. Heating coil; 52. Track 2; 53. Slider 2; 54. Trapezoidal push block 1; 55. Track side plate; 56. Track 1; 57. Trapezoidal push block 2; 58. Track 3; 59. Slider 3; 60. Connecting plate 2; 61. Threaded sleeve; 62. Threaded rod; 63. Motor 1; 64. Convex seat; 65. Slider 4. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] According to embodiments of the present invention, such as Figures 1-8 As shown in the document:

[0038] This invention provides a bottom-drying sludge drying device, comprising a drying chamber 1, a feed inlet 2 at the top of the drying chamber 1, an exhaust port 3 at the upper part of one side of the drying chamber 1, and a discharge port 4 below the exhaust port 3 at the lower part of the side of the drying chamber 1; a drain outlet at one side of the bottom of the drying chamber 1, a bottom box 5 at the bottom of the drying chamber 1, an air inlet pipe 6 connected to the bottom of the bottom box 5, the air inlet pipe 6 penetrating the drying chamber 1, a cover plate 7 at the top of the bottom box 5, and several connecting pipes 8 arranged laterally in the middle of the cover plate 7; a heating device at the bottom of the bottom of the bottom box 5, a tilting part 9 at the top of the bottom box 5, and the connecting pipes 8 connected to the tilting part 9; a curved crushing part 10 at the top of the drying chamber 1; the curved crushing part 10 includes a driving assembly, a curved guide plate 11 on the driving assembly, a set of pulleys 12 in the curved groove of the curved guide plate 11, a folding structure at the bottom of the pulleys 12, the folding structure being connected to the driving assembly, and several crushing rollers 13 on the folding structure.

[0039] The drive assembly includes a motor 14, which is fixed to the top side of the drying chamber 1. The bottom of the motor 14 has an output shaft, and the bottom of the output shaft has a drive plate 15. On the other side of the bottom of the drive plate 15 is a limiting rod 16. A U-shaped plate 17 is located outside the limiting rod 16. A connecting plate 18 is located in the middle of one side of the U-shaped plate 17. A U-shaped plate 19 is located on the side of the connecting plate 18 away from the U-shaped plate 17. A matching limiting rod 20 is located inside the U-shaped plate 19, and the limiting rod 20 is connected to the folding structure. A convex guide slider 21 is located near the center of the top of the connecting plate 18. The convex guide slider 21 is located on the curved... Inside the guide groove at the bottom of the guide plate 11, there are support columns 22 on both sides of the top of the curved guide plate 11. The top of the support column 22 is fixed to the top of the drying chamber 1. One end of the curved guide plate 11 is provided with a column 23. The output shaft passes through the column 23. The folding structure is composed of several connecting rods 1 24 and connecting rods 25. The bottom of the pulley 12 is provided with a set of symmetrical connecting rods 1 24. The corresponding side ends of the connecting rods 1 24 are hinged by several sets of cross-connecting rods 25. The middle of the cross-connecting rods 25 is movably connected by a rotating shaft. The top of the limiting rod 20 is connected to the intersection of the first set of cross-connecting rods 25 on the left.

[0040] The system comprises two sets of connecting rods 24 and several sets of connecting rods 25. The two sets of connecting rods 24 are respectively located on both sides, and then connected by several sets of intersecting connecting rods 25. The middle of the intersecting connecting rods 25 is movably connected, and the ends of the connecting rods 25 are connected to adjacent connecting rods 25. The intersecting ends are connected by a shaft, and the bottom of the shaft is provided with a cylinder. The bottom of the cylinder is provided with a crushing roller 13, which is located on both sides of the curved guide plate 11. The middle of the intersecting connecting rods 25 is movably connected by a rotating shaft. When the limiting rod 20 drives the connecting rods 25 to open and close around the rotating shaft, the folding structure drives the crushing roller 13 to reciprocate in an arc along the curved groove of the curved guide plate 11. At the same time, the crushing roller 13 rotates itself to crush the sludge, dispersing the falling sludge into fine particles. It also drives the sludge to roll laterally, so that each particle of sludge can come into contact with the hot airflow at least 3 times. Compared with traditional linear crushing, the contact time is extended by 2 times.

[0041] Additionally, the flipping section 9 includes a partition 26 located above the base box 5. The top of the partition 26 has a set of symmetrical horizontal U-plates 1 27 and 28. Several through holes 29 are provided on the partition 26 between the horizontal U-plates 1 27 and 28, communicating with the connecting pipe 8. A flipping plate 36 is provided between the horizontal U-plates 1 27 and 28. The outer ends of both ends of the horizontal U-plates 1 27 and 28 are fixedly connected to the top of the partition 26 via a first seat 48. The top sides of the horizontal U-plate 28 have slots 1 30 and 2 31 respectively. The middle position between slots 1 30 and 2 31 is located at the top center of the horizontal U-plate 28. A longitudinal U-plate 32 is provided at the center, with a break 33 in the middle. Frames 34 are provided on both sides of the bottom of the upper longitudinal U-plate 32, and the bottom of the frames 34 are fixed to the top sides of the transverse U-plate 28. A longitudinal U-plate 35 is provided at the top center of the transverse U-plate 27. Slider 37, which mates with the inner grooves of the transverse U-plate 27 and the transverse U-plate 28, is provided on both sides of the flip plate 36. Slider 37 is connected to the flip plate 36 via a movable shaft. Slider 4, which mates with the longitudinal U-plate 35 and the longitudinal U-plate 22, is provided on both sides of the flip plate 36 at the middle. An auxiliary power unit is connected to one side of the flip plate 36 near the side slider 37. The auxiliary power unit is mounted on the partition 26. The auxiliary power unit includes a second motor 38, which is mounted at the center of the top side of the partition 26. The output end of the second motor 38 is connected to an output shaft 39. The end of the output shaft 39 away from the second motor 38 is connected to the center of the side of the transverse U-plate 28. A set of second seats 40 is provided on both sides of the output shaft 39 at the middle of the outer side of the transverse U-plate 28. A connecting arm 41 is sleeved on the output shaft 39. The end of the connecting arm 41 away from the output shaft 39 is provided with a shaft 42. The inner end of the shaft 42 is movably connected to the side of the flip plate 36. The top right side of the slot 30 and the top left side of the slot 31 are provided with a slope 43. The longitudinal U-plate 22 has a discontinuity in the middle. The bottom wall of the 33 has two downward sloping surfaces 44 on both sides. The top and bottom of the flip plate 36 are provided with several hemispherical grooves 45. The hemispherical grooves 45 are provided with ratchet 46 that can rotate 360 ​​degrees. The hemispherical grooves 45 on the flip plate 36 pass through the top and bottom of the flip plate 36 to form a connecting hole. The top two sides of the partition plate 26 are provided with boxes 47. The motor 38, the first seat 48 and the second seat 40 pass through the boxes 47. The inner side of the boxes 47 is provided with several vent holes 49. The bottom of the boxes 47 is provided with several vent holes 50. The vent holes 50 connect the inside of the boxes 47 to the bottom of the partition plate 26. A coil frame is mounted above the vent holes 50. A heating coil 51 is wound on the coil frame.When the flipping plate 36 flips over, its ratchet 46 not only punctures sludge clumps, but the spikes on the ratchet 46 also drive the surrounding hot airflow to form a local vortex during rotation. Simultaneously, the connecting holes in the hemispherical groove 45 allow the hot airflow below to overflow upwards and mix with the hot airflow in the vortex, achieving uniform drying of the sludge in both directions. This allows the hot airflow to circulate within the gaps in the sludge. The hot airflow below the flipping plate 36 overflows upwards through the connecting holes in the hemispherical groove 45, directly acting on the bottom surface of the flipped sludge, achieving bidirectional drying and improving drying efficiency by 30%.

[0042] The bottom wall of the base box 5 has two tracks 52 on both sides. Each track 52 has a matching set of sliders 53. The top of each slider 53 has a trapezoidal push block 54. The top slope of the trapezoidal push block 54 has a track side plate 55. The inner side of the track side plate 55 has a matching track 56. Between the tops of the two tracks 56 is a trapezoidal push block 57. The top of the trapezoidal push block 57 is fixed to the bottom of the cover plate 7. Tracks 58 are located on both sides of the trapezoidal push block 57. The top edges of the cover plate 7 and the base box 5 have elastic sealing gaskets. When the cover plate 7 is raised, the opening size is controlled by the elastic sealing gaskets to adjust the hot airflow. Tracks 58 have matching sliders 59. Slider 59 is located away from the track 58. One side of 58 is fixed to the inner wall of the bottom box 5; a connecting plate 60 is provided between one side of the trapezoidal pusher 54 on both sides, and a threaded sleeve 61 is provided in the middle of the connecting plate 60. A matching threaded rod 62 is inserted in the threaded sleeve 61. One end of the threaded rod 62 passes through the bottom box 5 and the drying chamber 1 and is connected to a motor 63 installed on the lower part of the outside of the drying chamber 1. The motor 63 is fixed to the side of the drying chamber 1 through a convex seat 64. The heating device in the bottom box 5 heats the drying gas to 80-120℃ and delivers it to the turning part 9 through the connecting pipe 8. The unused hot gas flows into the condensation recovery device through the exhaust port 3 at the top of the drying chamber 1. The condensed drying gas is reheated by the heating device and then sent back into the intake pipe 6 for recycling, reducing energy consumption by 25%.

[0043] Detailed usage and function of this embodiment:

[0044] Sludge is fed into drying chamber 1 through inlet 2. External drying gas is transported to bottom chamber 5 through air inlet pipe 6. The drying gas entering bottom chamber 5 is heated by the heating device inside the chamber, and the generated hot gas enters below tilting plate 36 through connecting pipe 8. Drive motor 38 runs, which drives output shaft 39 to rotate. Output shaft 39 drives connecting arm 41 to rotate. Shaft 42 at one end of connecting arm 41 slides out from slot 31. At the same time, connecting arm 41 rotates around the axis of output shaft 39, and shaft 42 drives tilting plate 36 to rotate. The slider 37 on the right side of the rotating plate 36 slides to the left within the grooves of the transverse U-plate 27 and the transverse U-plate 28, causing the left side of the rotating plate 36 to tilt upwards. The sliders 65 in the middle of both sides of the rotating plate 36 slide upwards along the grooves of the longitudinal U-plate 35 and the longitudinal U-plate 22. After the shaft 42 rotates to the left, passes through the fault 33, and gets into the slot 30, the slider 37 slides to the left within the grooves of the transverse U-plate 27 and the transverse U-plate 28. When the rotating plate 36 flips, its original bottom surface flips to the top. When the rotating plate 36 flips back and forth, the falling sludge is carried along and impacts the inner wall of the drying chamber 1. During the flipping motion of the rotating plate 36, the ratchet 46 on the surface also moves within the hemispherical groove 45. The spikes on the ratchet 46 pierce the impacting sludge. The hemispherical groove 45 on the top surface of the rotating plate 36 is connected to the hemispherical groove 45 on the bottom surface.

[0045] Meanwhile, drive motor 314 operates, driving output shaft 1 to rotate. Output shaft 1 drives drive plate 15. Limiting rod 16 at the other end of the bottom of drive plate 15 slides in the groove of the loop plate 17, causing the loop plate 17 to move. Loop plate 17 pulls connecting plate 18, connecting plate 18 pulls loop plate 29. Inverted guide slider 21 slides in the groove at the bottom of curved guide plate 11. Limiting rod 20 inserted in loop plate 29 pulls the connected cross-connecting rod 25 together with loop plate 29, further driving the connected connecting rod 25 and connecting rod 1 24. Pulley 12 slides in the groove of curved guide plate 11, driving crushing roller 13 to move along the curve. During the curved movement, crushing roller 13 drives the sludge entering the drying chamber to move synchronously along the curve. The sludge shuttle path will increase, which will increase the time for the sludge to merge with the entering drying gas, thus increasing the sludge drying time.

[0046] During this period, drive motor 63 operates, driving threaded rod 62 to rotate. Threaded rod 62 drives mating threaded sleeve 61, causing threaded sleeve 61 to move on threaded rod 62. Connecting plate 60 pushes trapezoidal push block 54. The bottom slider 53 of trapezoidal push block 54 slides to the left on track 52. The top inclined surface of trapezoidal push block 54 abuts against trapezoidal push block 57. Track 58 on the side of trapezoidal push block 57 slides within slider 59, pushing trapezoidal push block 57 upwards. Trapezoidal push block 57 pushes against cover plate 7 upwards. Separated from the bottom box 5, the connecting pipe 8 passes through the through hole 29. After the hot gas in the bottom box 5 rushes out from the side opening of the cover plate 7, part of the hot gas enters the box body 47 from the first air outlet 50. After the heating coil 51 in the box body 47 heats up, it rushes out from the second air outlet 49 along with the gas that enters. The hot gas that rushes out is carried up to the top when the flip plate 36 flips, and mixes with the sludge above. The crushed sludge can be lifted for drying treatment. The waste gas generated during the drying process is discharged from the exhaust port 3, and the dried sludge is discharged from the discharge port 4.

[0047] Through the specific embodiments described above, those skilled in the art can easily implement the present invention. However, it should be understood that the present invention is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.

Claims

1. A bottom-drying sludge drying device, characterized in that, It includes a drying chamber (1), a feed inlet (2) at the top of the drying chamber (1), an exhaust port (3) at the upper part of one side of the drying chamber (1), and a discharge port (4) at the lower part of the side of the drying chamber (1) below the exhaust port (3). A drain outlet is provided on one side of the bottom of the drying chamber (1). A bottom box (5) is provided at the bottom of the drying chamber (1). An air inlet pipe (6) is connected to the bottom of the bottom box (5). The air inlet pipe (6) passes through the drying chamber (1). A cover plate (7) is provided on the top of the bottom box (5). Several connecting pipes (8) are provided horizontally in the middle of the cover plate (7). A heating device is provided at the bottom of the bottom box (5), and a flipping part (9) is provided above the bottom box (5). The connecting pipe (8) is connected to the flipping part (9). The top of the drying chamber (1) is equipped with a curved crushing section (10); The curved crushing section (10) includes a drive assembly, on which a curved guide plate (11) is provided. A set of pulleys (12) is provided in the curved groove of the curved guide plate (11). The bottom of the pulleys (12) is provided with a folding structure, which is connected to the drive assembly. Several crushing rollers (13) are provided on the folding structure.

2. The bottom-drying sludge drying device according to claim 1, characterized in that, The drive assembly includes a motor three (14), which is fixed on the top side of the drying chamber (1). The bottom of the motor three (14) is provided with an output shaft one, and the bottom of the output shaft one is provided with a drive plate (15). The other side of the bottom of the drive plate (15) is provided with a limiting rod one (16). The outer side of the limiting rod one (16) is provided with a loop plate one (17). The middle of one side of the loop plate one (17) is provided with a connecting plate one (18). The side of the connecting plate one (18) away from the loop plate one (17) is provided with a loop plate two (19). The loop plate two (19) is provided with a matching limiting rod two (20). The limiting rod two (20) is connected to the folding structure. The top of the connecting plate (18) is provided with an inverted convex guide slider (21) near the center. The inverted convex guide slider (21) is located in the guide groove at the bottom of the curved guide plate (11).

3. The bottom-drying sludge drying device according to claim 2, characterized in that, The top of the curved guide plate (11) is provided with support columns (22) on both sides. The top of the support columns (22) is fixed to the top of the drying chamber (1). One end of the curved guide plate (11) is provided with a column (23), and the output shaft passes through the column (23).

4. The bottom-drying sludge drying device according to claim 2, characterized in that, The folding structure consists of several connecting rods 1 (24) and connecting rods 2 (25). The bottom of each pulley (12) is provided with a set of symmetrical connecting rods 1 (24). The corresponding side ends of the connecting rods 1 (24) are hinged by several sets of cross-connecting rods 2 (25). The middle part of the cross-connecting rods 2 (25) is movably connected by a pivot. The top of the limiting rod 2 (20) is connected to the intersection of the first set of cross-connecting rods 2 (25) on the left side.

5. The bottom-drying sludge drying device according to claim 1, characterized in that, The flipping section (9) includes a partition (26) located above the bottom box (5). The top of the partition (26) is provided with a set of symmetrical horizontal U-plates 1 (27) and 2 (28). Between the horizontal U-plates 1 (27) and 2 (28), there are several through holes (29) on the partition (26). The through holes (29) are connected to the connecting pipe (8). A flipping plate (36) is provided between the horizontal U-plates 1 (27) and 2 (28). The outer ends of the horizontal U-plates 1 (27) and 2 (28) are... The sides are fixedly connected to the top of the partition (26) via the first seat (48). The top two sides of the transverse U plate (28) are respectively provided with slot one (30) and slot two (31). The middle position between slot one (30) and slot two (31) is located at the top center of the transverse U plate (28). The middle of the longitudinal U plate (32) is provided with a fault (33). The bottom of the upper longitudinal U plate (32) is provided with a frame (34). The bottom of the frame (34) is fixed to the top two sides of the transverse U plate (28). A longitudinal U-plate (35) is provided at the top center of the transverse U-plate (27); The two sides of the flip plate (36) are provided with sliders (37) that cooperate with the inner grooves of the first transverse U plate (27) and the second transverse U plate (28). The sliders (37) and the flip plate (36) are connected by a movable shaft. The flip plate (36) has a slider four (65) in the middle of both sides that cooperates with the longitudinal U plate one (35) and the longitudinal U plate two (32). An auxiliary power unit is connected to one side of the flip plate (36) near the side slider (37), and the auxiliary power unit is mounted on the partition plate (26).

6. The bottom-drying sludge drying device according to claim 5, characterized in that, The auxiliary power unit includes a second motor (38), which is installed at the center of the top side of the partition (26). The output end of the second motor (38) is connected to an output shaft (39). The end of the output shaft (39) away from the second motor (38) is connected to the center of the side of the transverse U plate (28). A set of second seats (40) is provided on both sides of the output shaft (39) at the middle of the outer side of the transverse U plate (28). A connecting arm (41) is sleeved on the output shaft (39). The end of the connecting arm (41) away from the output shaft (39) is provided with a shaft (42). The inner end of the shaft (42) is movably connected to the side of the flip plate (36).

7. A bottom-drying sludge drying device according to claim 6, characterized in that, The top right side of slot one (30) and the top left side of slot two (31) are provided with a slope one (43); The longitudinal U-plate 2 (32) has two downward inclined slopes 2 (44) on both sides of the bottom wall of the fault (33) in the middle.

8. A bottom-drying sludge drying device according to claim 5, characterized in that, The top and bottom of the flip plate (36) are provided with several hemispherical grooves (45), and the hemispherical grooves (45) are provided with ratchet (46) that can rotate 360 ​​degrees. The hemispherical grooves (45) on the flip plate (36) pass through the top and bottom of the flip plate (36) to form a connecting hole.

9. A bottom-drying sludge drying device according to claim 5, characterized in that, Boxes (47) are provided on both sides of the top of the partition (26), and motor two (38), first seat (48) and second seat (40) pass through the box (47); The inner side of the box (47) is provided with several air vents (49). The bottom of the box (47) is provided with several air vents (50), which connect the inside of the box (47) with the bottom of the partition (26); A coil frame is mounted above the air outlet (50), and a heating coil (51) is wound on the coil frame.

10. A bottom-drying sludge drying device according to claim 1, characterized in that, The bottom wall of the base box (5) is provided with two rails (52) on both sides. A set of sliders (53) are provided on the two rails (52). A trapezoidal push block (54) is provided on the top of the slider (53). A rail side plate (55) is provided on the top slope of the trapezoidal push block (54). A matching rail (56) is provided on the inner side of the rail side plate (55). A trapezoidal push block (57) is provided between the tops of the two rails (56). The top of the trapezoidal push block (57) is fixed to the bottom of the cover plate (7). A rail (58) is provided on both sides of the trapezoidal push block (57). An elastic sealing gasket is provided on the top edge of the cover plate (7) and the base box (5). A matching slider (59) is provided on the rail (58). The side of the slider (59) away from the rail (58) is fixed to the inner wall of the base box (5). A connecting plate 2 (60) is provided between one side of the trapezoidal push block 1 (54) on both sides. A threaded sleeve (61) is provided in the middle of the connecting plate 2 (60). A matching threaded rod (62) is inserted in the threaded sleeve (61). One end of the threaded rod (62) passes through the bottom box (5) and the drying chamber (1) and is connected to a motor 1 (63) installed on the lower part of the outside of the drying chamber (1). The motor 1 (63) is fixed to the side of the drying chamber (1) through a convex seat (64).

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