Dryer for preparing organic fertilizer from household garbage

Abstract

The invention belongs to the field of organic fertilizer preparation, and particularly relates to a dryer for preparing organic fertilizer from household garbage, which comprises a drying roller, the front end and the rear end of the drying roller are rotatably connected with roller supporting seats, and the drying roller is connected with a driving mechanism for driving the drying roller to rotate. An air heater used for supplying air into the drying roller is arranged on the roller supporting seat at the rear end of the drying roller. A plurality of raising mechanisms for continuously throwing organic fertilizer raw materials to be dried in the drying roller are uniformly arranged on the inner wall of the drying roller in the circumferential direction of the drying roller; an anti-sticking mechanism used for cleaning materials adhered to the inner wall of the drying roller in a scraping and air blowing mode is further arranged at the position, between every two adjacent lifting mechanisms, of the inner wall of the drying roller. And a crushing mechanism for crushing the thrown organic fertilizer raw materials is also arranged in the drying roller. According to the drying device, the caking condition of the household garbage serving as an organic fertilizer raw material during drying can be effectively reduced, so that the drying efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of organic fertilizer preparation, and in particular relates to a dryer for preparing organic fertilizer by utilizing domestic garbage. Background Art

[0002] Producing organic fertilizer from household waste is a resource-recycling method. By sorting, crushing, fermenting, and drying the organic components of household waste, it is transformed into organic fertilizer for agricultural production. This process not only reduces the environmental impact of landfills but also enables waste recycling. Drying is a key step in the production process, aiming to reduce the moisture content of the material and improve the stability and storage properties of the organic fertilizer.

[0003] Existing drum dryers dry pretreated domestic waste primarily by throwing the material into the air through an internal lifting plate, allowing it to fully come into contact with the hot air and thus achieve the drying purpose. However, even after pre-treatment, the moisture content of domestic waste is still above 50%. Due to the high moisture content and high viscosity of domestic waste, the material easily clumps during the drying process, making it difficult for hot air to penetrate evenly, thus extending the drying time. In addition, the large amount of water vapor generated during the drying process easily adheres to the inner wall of the drum, causing the waste material to stick to the inner wall of the drum, further reducing the drying efficiency. These problems not only increase energy consumption but also affect the final quality and production efficiency of the organic fertilizer.

[0004] In summary, although drum dryers play an important role in the drying process of domestic waste to produce organic fertilizer, they still have problems such as agglomeration and water vapor adhesion when processing high-moisture and high-viscosity materials, resulting in low drying efficiency and increased energy consumption. Therefore, it is urgent to optimize the design of drum dryers to improve the drying effect of materials and improve the overall efficiency and quality of organic fertilizer production. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a dryer for preparing organic fertilizer using domestic waste, which is used to solve the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: The present invention provides a dryer for producing organic fertilizer from household waste, comprising a drying drum, wherein the drying drum is rotatably connected to a drum support at both its front and rear ends. The drying drum is connected to a drive mechanism for rotating the drying drum, and a hot air blower is provided on the drum support at the rear end of the drying drum for supplying air to the interior of the drying drum. The inner wall of the drying drum is uniformly arranged along its circumference for continuously spreading the organic fertilizer raw material to be dried therein. An anti-sticking mechanism is provided on the inner wall of the drying drum, located between adjacent ones of the lifting mechanisms, for scraping and cleaning any material adhering to the inner wall of the drying drum. A crushing mechanism is also provided within the drying drum for crushing the spilled organic fertilizer raw material. A transmission mechanism is connected between the crushing mechanism, the lifting mechanism, the anti-sticking mechanism, and the drying drum. The transmission mechanism comprises two isolation plates fixedly disposed at the front and rear ends of the drying drum, with a transmission shaft rotatably disposed in the middle of each isolation plate, the transmission shaft being connected to a transmission gear set.

[0007] According to an advantageous embodiment, the driving mechanism includes a driving motor fixedly arranged on the ground, a gear 1 is fixedly connected to the output shaft of the driving motor, and an outer gear ring of the drum meshing with the gear 1 is fixedly mounted on the drying drum.

[0008] According to a favorable embodiment, the material lifting mechanism includes a mounting base fixedly connected to the inner wall of the drying drum, a slide groove is provided on the mounting base, a plurality of buffer springs are fixedly arranged in the slide groove, and a slide is fixedly connected to one end of the plurality of buffer springs close to the slide groove port, a material lifting plate is fixedly connected to the slide, a sliding cavity is provided inside the material lifting plate, an impact plate is slidably arranged in the sliding cavity, a plurality of spring telescopic columns are fixedly provided between the side of the impact plate close to the slide and the corresponding side wall of the sliding cavity, a plurality of active impact blocks are fixedly provided on the side wall of the impact plate and perpendicular to the corresponding slide, a plurality of passive impact blocks are fixedly provided on the side wall of the sliding cavity, and the passive impact blocks correspond one to one to the active impact blocks.

[0009] According to a favorable embodiment, a drive disk is fixedly provided at one end of the transmission shaft away from the adjacent roller support seat, the outer ring of the drive disk is composed of two arc surfaces connected end to end, and a cross-sectional structure is formed at the end-to-end connection of the two arc surfaces, and sliding holes connected to the corresponding sliding cavity are provided on the front and rear sides of the lifting plate, and an ear plate is slidably provided in the sliding hole, and the ear plate is fixedly connected to the corresponding impact plate, and a ball is provided on the side of the ear plate facing the drive disk through a ball seat, and the ball rolls and contacts the outer ring surface of the drive disk.

[0010] According to a favorable embodiment, the anti-sticking mechanism includes a scraper seat that is in an inverted U shape and is slidably arranged on the inner wall of the drying drum. A plurality of hot air nozzles are fixedly arranged on the inner concave surface of the scraper seat, and the plurality of hot air nozzles are all inclined toward the length direction of the inner wall of the drying drum. A connecting sleeve is fixedly arranged on the side where the two isolation plates are close to each other. The connecting sleeve is coaxially sleeved on the outer ring of the corresponding transmission shaft. A plurality of rotating rings evenly distributed front and back are rotatably arranged on the surface of the connecting sleeve. A connecting plate is fixedly arranged on the outer wall of the rotating ring. The two corresponding connecting plates in the front and back are fixedly connected to the same scraper seat.

[0011] According to a favorable embodiment, an air outlet channel and an air inlet channel connected to the interior of the drying drum are respectively provided on the drum support seats located at the front and rear ends of the drying drum, an exhaust pipe is fixedly provided at the outer end of the air outlet channel, an exhaust hole is provided on the isolation plate located at the front end of the drying drum, the hot air blower is fixedly provided at the outer end of the air inlet channel, a hot air air supply cavity is provided inside the connecting sleeve, a hot air air supply channel is provided between the rotating ring, the rear connecting plate and the scraper seat in the same anti-sticking mechanism, a plurality of arc-shaped hot air connecting holes are provided on the inner wall of the hot air supply cavity, the hot air connecting holes are connected to the corresponding hot air supply channels, and a plurality of hot air injection holes connected to the hot air supply cavity are provided on the isolation plate located at the rear end of the drying drum.

[0012] According to a favorable embodiment, the crushing mechanism includes a rotating shaft rotatably arranged inside the drying drum, a plurality of crushing rods are evenly fixedly arranged on the surface of the rotating shaft along its length direction, and both ends of the rotating shaft are fixedly connected to the ends of the two transmission shafts close to each other.

[0013] According to a favorable embodiment, the transmission gear set includes two gears 2 that mesh with each other, and both gears 2 are rotatably connected to the corresponding drum support seat through a connecting shaft. The connecting shaft on one of the gears 2 is fixedly connected to one end of the adjacent transmission shaft, and a drum inner gear ring is fixedly provided on the inner wall of the drying drum, and the drum inner gear ring is meshed with the corresponding gear 2.

[0014] According to a favorable embodiment, the upper ends of the two roller support seats are fixedly connected to a lower hopper that is open at the top and bottom through a connecting seat, and a downward inclined discharge guide plate is fixedly provided on the two roller support seats and located below the drying roller.

[0015] According to an advantageous embodiment, an outer wall of the drying drum is provided with an inlet and outlet extending along the length direction thereof, and the inlet and outlet is provided with a sealing door that can be slid open.

[0016] Compared with existing technologies, the dryer for producing organic fertilizer from household waste provided by the present invention has the following beneficial effects: 1. By installing a lifting mechanism within the drying drum, the present invention effectively reduces the adhesion of waste materials to the lifting plate surface due to their high moisture content and high viscosity through the vibration of the impact plate during rotation. Furthermore, the vibration of the lifting plate causes the material to slide off the lifting plate surface, increasing the contact area between the material and the hot air, thereby improving drying efficiency and reducing the occurrence of caking.

[0017] 2. The present invention incorporates an anti-sticking mechanism on the inner wall of the drying drum that works in conjunction with a hot air blower. The hot air blower delivers high-temperature air into the drum through an air inlet channel, ultimately ejecting it through a hot air nozzle. As the scraper rotates with the drying drum, it slides relative to the drum. The cooperation between the scraper and the hot air nozzle effectively scrapes and disperses any debris adhering to the inner wall of the drum. This further improves the dryness of the inner wall, reduces the risk of material adhesion, and thus enhances the drying effect.

[0018] 3. This invention incorporates a crushing mechanism within the drum. The rotating shaft rotates relative to the drying drum, causing the rotating shaft and crushing rods to rotate, breaking up any clumping waste material that may have been thrown into the air. The crushed material is more easily exposed to the hot air, accelerating the drying process and further improving drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an external first-view stereoscopic structural diagram of the present invention.

[0020] Figure 2 It is a side sectional three-dimensional structural diagram of the entire invention.

[0021] Figure 3 It is a side sectional plan view of the drying drum in the present invention.

[0022] Figure 4 It is a partially cutaway three-dimensional structural diagram of the drying drum in the present invention.

[0023] Figure 5 It is a schematic diagram of the relative position structure of the material lifting mechanism, anti-sticking mechanism and crushing mechanism in the present invention.

[0024] Figure 6 It is a main sectional plan view of the present invention.

[0025] Figure 7 for Figure 6 A magnified structural diagram of part A.

[0026] Figure 8 It is a main sectional plan view of the material lifting mechanism in the present invention.

[0027] Figure 9 It is an external three-dimensional structural diagram of the anti-sticking mechanism in the present invention.

[0028] Figure 10 This is a disassembled exploded three-dimensional structural diagram of the rear connecting sleeve and the adjacent isolation plate in the present invention.

[0029] Figure 11 This is a structural diagram of the relative positions of the balls and the drive disc in the present invention.

[0030] Figure 12 Schematic diagram of the motion trajectory of the ball and the driving disk in the present invention.

[0031] Figure 13 Schematic diagram of the hot air flow direction inside the drying drum of the present invention.

[0032] Reference numerals in the figures: 1, drying drum; 2, drum support base; 3, driving mechanism; 31, driving motor; 32, gear 1; 33, outer gear ring of drum; 4, hot air blower; 5, material lifting mechanism; 51, mounting base; 52, buffer spring; 53, slide plate; 54, material lifting plate; 541, sliding chamber; 55, impact plate; 56, spring telescopic column; 57, active impact block; 58, passive impact block; 59, driving disc; 510, ear plate; 511, ball bearing; 6, anti-sticking mechanism; 61, scraper seat; 62. Hot air nozzle; 63. Connecting sleeve; 64. Rotating ring; 65. Connecting plate; 7. Crushing mechanism; 71. Rotating shaft; 72. Crushing rod; 8. Transmission mechanism; 81. Isolation plate; 82. Transmission shaft; 83. Transmission gear set; 831. Gear 2; 832. Drum inner gear ring; 9. Air outlet channel; 10. Air inlet channel; 11. Exhaust pipe; 12. Hot air delivery cavity; 13. Hot air delivery channel; 14. Hot air connecting hole; 15. Hot air injection hole; 16. Lower hopper; 17. Discharge guide plate. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1 -Attached Figure 13 This application is described in further detail.

[0034] Please refer to Figure 1 and Figure 2A dryer for preparing organic fertilizer from domestic waste, the dryer is used to dry domestic waste that has been sorted, crushed, and fermented. The dryer includes a drying drum 1, the front and rear ends of the drying drum 1 are rotatably connected to a drum support seat 2, the drying drum 1 is connected to a driving mechanism 3 for driving its rotation, and the drum support seat 2 at the rear end of the drying drum 1 is provided with a hot air blower 4 for supplying air to the inside of the drying drum 1. The upper ends of the two drum support seats 2 are fixedly connected to a lower hopper 16 that is open at the top and bottom through a connecting seat, and a downward-inclined discharge guide plate 17 is fixedly provided on the two drum support seats 2 and located below the drying drum 1. An inlet and outlet port extending along its length is provided on the outer wall of the drying drum 1, and a sealing door that can be slid open is provided on the inlet and outlet port.

[0035] See Figure 1 The driving mechanism 3 includes a driving motor 31 fixedly set on the ground, a gear 32 is fixedly connected to the output shaft of the driving motor 31, and a drum outer gear ring 33 engaged with the gear 32 is fixedly mounted on the drying drum 1.

[0036] During specific operation, after the inlet and outlet ports on the drying drum 1 face upward and are aligned with the lower hopper 16, the sealed door is opened, and the domestic waste materials used to make organic fertilizer are fed into the lower hopper 16 through manual or external loading mechanisms, and then the waste materials enter the interior of the drying drum 1 along the lower hopper 16, and then the sealed door is closed, and the drying drum 1 is driven to rotate by the driving mechanism 3 and cooperates with the hot air blower 4 to continuously feed gas of a certain temperature into the drying drum 1 to dry the waste materials. After the drying is completed, the inlet and outlet ports on the drying drum 1 are controlled to face downward. At this time, most of the waste materials are accumulated under the drying drum 1, and then the sealed door is opened to allow the dried waste materials to fall onto the discharge guide plate 17 and be collected. If there is any residual material, manual assistance can be used for discharging.

[0037] See Figure 5 、 Figure 6 and Figure 7 The drying drum 1 is provided with a transmission mechanism 8, which comprises two isolation plates 81 fixedly mounted at the front and rear ends of the drying drum 1. A transmission shaft 82 is rotatably mounted in the middle of the isolation plates 81, and a transmission gear set 83 is connected to the transmission shaft 82. The transmission gear set 83 comprises two intermeshing gears 831, each of which is rotatably connected to a corresponding drum support 2 via a connecting shaft. The connecting shaft of one of the gears 831 is fixedly connected to the adjacent transmission shaft 82. A drum internal gear ring 832 is fixedly mounted on the inner wall of the drying drum 1, and meshes with the corresponding gear 831.

[0038] See Figure 1 、 Figure 2 、 Figure 3 and Figure 8 The inner wall of the drying drum 1 is uniformly arranged along its circumference, with multiple lifting mechanisms 5 for continuously dispersing the waste material to be dried therein. The lifting mechanisms 5 include a mounting base 51 fixedly connected to the inner wall of the drying drum 1. The mounting base 51 defines a chute, within which multiple buffer springs 52 are fixedly mounted. A slide 53 is fixedly attached to the ends of the buffer springs 52 near the chute. A lifting plate 54 is fixedly attached to the slide 53. The lifting plate 54 defines a sliding cavity 541 within which a striker plate 55 is slidably mounted. Multiple spring extension columns 56 are fixedly mounted between the side of the striker plate 55 proximal to the slide 53 and the corresponding sidewall of the cavity 541. Multiple active impact blocks 57 are fixedly mounted on the sidewalls of the impact plate 55 perpendicular to the corresponding slides 53. Multiple passive impact blocks 58 are fixedly mounted on the sidewalls of the cavity 541, corresponding one-to-one with the active impact blocks 57. The buffer springs 52 reduce the impact of vibrations on the drying drum 1 during vibrations.

[0039] See Figure 6 、 Figure 7 、 Figure 8 、 Figure 11 and Figure 12 A drive disk 59 is fixedly provided at one end of the transmission shaft 82 away from the adjacent roller support seat 2. The outer ring of the drive disk 59 is composed of two arc surfaces connected end to end, and one of the end-to-end connection of the two arc surfaces forms a cross-sectional structure. The front and rear sides of the lifting plate 54 are provided with sliding holes connected to the corresponding sliding cavity 541. An ear plate 510 is slidingly provided in the sliding hole. The ear plate 510 is fixedly connected to the corresponding impact plate 55, and a ball 511 is provided on the side of the ear plate 510 facing the drive disk 59 through a ball seat for rotation. The ball 511 rolls and contacts the outer ring surface of the drive disk 59.

[0040] In specific operation, when the drying drum 1 is driven to rotate continuously by the external driving motor 31, the transmission shaft 82 rotates in the opposite direction to the drying drum 1 under the action of the transmission gear set 83, so that the driving disc 59 on the transmission shaft 82 can rotate, and the balls 511 on the outer wall of the driving disc 59 can roll along its outer wall, as shown in FIG. Figure 12As shown, when the ball bearing 511 moves along the outer wall of the driving disc 59 to the cross section on the outer wall of the driving disc 59, the impact plate 55 suddenly slides in the sliding cavity 541 under the reset action of the spring telescopic column 56. The active impact block 57 on the impact plate 55 collides with the corresponding passive impact block 58 on the inner wall of the sliding cavity 541, causing the lifting plate 54 to vibrate. In particular, when the lifting plate 54 rotates to the upper middle part of the drying drum 1, the vibration of the lifting plate 54 causes the waste material on the lifting plate 54 to slide off the surface of the lifting plate 54, which can greatly reduce the risk of the waste material on the lifting plate 54 sticking to the surface due to the high moisture content in the initial drying process.

[0041] See Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 9 The inner wall of the drying drum 1 is located between two adjacent mounting bases 51 and is further provided with an anti-sticking mechanism 6 for scraping and cleaning materials adhered to the inner wall of the drying drum 1 by means of air blowing. The anti-sticking mechanism 6 includes an inverted U-shaped scraper seat 61 slidably mounted on the inner wall of the drying drum 1. A plurality of hot air nozzles 62 are fixedly mounted on the inner concave surface of the scraper seat 61. The plurality of hot air nozzles 62 are all tilted toward the longitudinal direction of the inner wall of the drying drum 1. A connecting sleeve 63 is fixedly mounted on the side of each of the two isolation plates 81 adjacent to each other. The connecting sleeve 63 is coaxially sleeved on the outer ring of the corresponding transmission shaft 82. A plurality of rotating rings 64 are rotatably mounted on the surface of the connecting sleeve 63. A connecting plate 65 is fixedly mounted on the outer wall of the rotating ring 64. The two corresponding connecting plates 65 are fixedly connected to the same scraper seat 61.

[0042] See Figure 1 、 Figure 4 、 Figure 6 、 Figure 7 、 Figure 9 and Figure 10 An air outlet channel 9 and an air inlet channel 10 communicating with the interior of the drying drum 1 are respectively provided on the drum support seats 2 at the front and rear ends of the drying drum 1. An exhaust pipe 11 is fixedly provided at the outer end of the air outlet channel 9. An exhaust hole is provided on the isolation plate 81 at the front end of the drying drum 1. The hot air blower 4 is fixedly provided at the outer end of the air inlet channel 10. A hot air delivery cavity 12 is provided inside the connecting sleeve 63 at the rear end of the drying drum 1. A hot air delivery channel 13 is provided between the rotating ring 64, the rear connecting plate 65 and the scraper seat 61 in the same anti-sticking mechanism 6. A plurality of arc-shaped hot air connecting holes 14 are provided on the inner wall of the hot air delivery cavity 12. The hot air connecting holes 14 are connected to the corresponding hot air delivery channels 13. A plurality of hot air injection holes 15 communicating with the hot air delivery cavity 12 are provided on the isolation plate 81 at the rear end of the drying drum 1.

[0043] During specific operation, the exhaust pipe 11 is connected to the external gas purification equipment to intermittently extract the odorous gas inside the drying drum 1, and the scraper seat 61 slides around the drying drum 1 between the two adjacent mounting bases 51, and the scraper seat 61 itself rotates with the drying drum 1. When the scraper seat 61 rotates from the highest position to the bottom with the drying drum 1, the scraper seat 61 will rotate under the action of gravity, so that the scraper seat 61 can scrape up the garbage materials that may be adhered to the inner wall of the drying drum 1, and in this process, the external hot air blower 4 will continue to send high-temperature gas into the rear end of the drying drum 1 through the air inlet channel 10, and then the high-temperature gas is injected into the hot air delivery cavity 12 of the connecting sleeve 63 through the hot air injection hole 15 on the isolation plate 81 at this position, and finally passes through the hot air delivery channel 13 between the rotating ring 64, the connecting plate 65 and the scraper seat 61 in turn, and enters the hot air nozzle 62, and acts on the inner wall of the drying drum 1, as shown in FIG. Figure 13 The waste materials that may be attached to the inner wall of the drying drum 1 and located between two adjacent mounting bases 51 are blown away, and the dryness of the inner wall of the drying drum 1 is increased, thereby reducing the risk of waste materials adhering.

[0044] See Figure 2 and Figure 4 The crushing mechanism 7 includes a rotating shaft 71 that is rotatably mounted within the drying drum 1. Multiple crushing rods 72 are uniformly and fixedly mounted on the surface of the rotating shaft 71 along its length. The ends of the rotating shaft 71 are fixedly connected to the adjacent ends of two transmission shafts 82. When the transmission shafts 82 rotate in the direction opposite to the drying drum 1, they simultaneously drive the rotating shaft 71 to rotate. This, in turn, drives the crushing rods 72 on its surface to break up any agglomerated waste material thrown into the air, facilitating contact between the waste material and the hot air, accelerating its drying.

[0045] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A dryer for preparing organic fertilizer from domestic waste, characterized by: The drying drum comprises a drying drum, wherein the front and rear ends of the drying drum are rotatably connected to a drum support seat, the drying drum is connected to a driving mechanism for driving the drying drum to rotate, and the drum support seat at the rear end of the drying drum is provided with a hot air blower for supplying air to the interior of the drying drum; The inner wall of the drying drum is evenly provided with multiple lifting mechanisms along its circumferential direction for continuously throwing the organic fertilizer raw materials to be dried inside. The inner wall of the drying drum is also provided with an anti-sticking mechanism between two adjacent lifting mechanisms for cleaning the materials adhering to the inner wall of the drying drum by scraping and blowing. The drying drum is also provided with a crushing mechanism for crushing the scattered organic fertilizer raw materials; The crushing mechanism, material lifting mechanism, anti-sticking mechanism and drying drum are connected with a transmission mechanism; The transmission mechanism includes two isolation plates fixedly arranged at the front and rear ends of the drying drum. A transmission shaft is rotatably arranged in the middle of the isolation plates, and a transmission gear set is connected to the transmission shaft.

2. A dryer for preparing organic fertilizer from domestic waste according to claim 1, characterized in that, The driving mechanism includes a driving motor fixedly arranged on the ground, a gear 1 is fixedly connected to the output shaft of the driving motor, and an outer gear ring of the drum meshing with the gear 1 is fixedly sleeved on the drying drum.

3. A dryer for preparing organic fertilizer from domestic waste according to claim 1, characterized in that: The material lifting mechanism includes a mounting base fixedly connected to the inner wall of the drying drum, a slide groove is provided on the mounting base, a plurality of buffer springs are fixedly arranged in the slide groove, and one end of the plurality of buffer springs close to the slide groove port is jointly fixedly connected to a slide plate, and a material lifting plate is fixedly connected to the slide plate, a sliding cavity is provided inside the material lifting plate, an impact plate is slidably arranged in the sliding cavity, and a plurality of spring telescopic columns are jointly fixedly provided between the side of the impact plate close to the slide plate and the corresponding side wall of the sliding cavity, a plurality of active impact blocks are fixedly provided on the side wall of the impact plate and perpendicular to the corresponding slide plate, and a plurality of passive impact blocks are fixedly provided on the side wall of the sliding cavity, and the passive impact blocks correspond one to one to the active impact blocks.

4. A dryer for preparing organic fertilizer from domestic waste according to claim 3, characterized in that, A driving disk is fixedly provided at one end of the transmission shaft away from the adjacent roller support seat, and the outer ring of the driving disk is composed of two arc surfaces connected end to end, and a cross-section structure is formed at the end connection of the two arc surfaces. Sliding holes connected to the corresponding sliding cavity are provided on the front and rear sides of the lifting plate, and ear plates are slidably provided in the sliding holes. The ear plates are fixedly connected to the corresponding impact plates, and a ball is provided on the side of the ear plate facing the driving disk through a ball seat for rotation, and the ball rolls and contacts the outer ring surface of the driving disk.

5. A dryer for preparing organic fertilizer from domestic waste according to claim 1, characterized in that: The anti-sticking mechanism includes a scraper seat that is in an inverted U shape and is slidably arranged on the inner wall of the drying drum. A plurality of hot air nozzles are fixedly arranged on the inner concave surface of the scraper seat, and the plurality of hot air nozzles are all inclined toward the length direction of the inner wall of the drying drum. A connecting sleeve is fixedly arranged on the side where the two isolation plates are close to each other. The connecting sleeve is coaxially sleeved on the outer ring of the corresponding transmission shaft. A plurality of rotating rings evenly distributed front and back are rotatably arranged on the surface of the connecting sleeve. A connecting plate is fixedly arranged on the outer wall of the rotating ring. The two corresponding connecting plates in the front and back are fixedly connected to the same scraper seat.

6. A dryer for preparing organic fertilizer from domestic waste according to claim 5, characterized in that: An air outlet channel and an air inlet channel connected to the interior of the drying drum are respectively provided on the drum support seats at the front and rear ends of the drying drum. An exhaust pipe is fixedly provided at the outer end of the air outlet channel, and an exhaust hole is provided on the isolation plate at the front end of the drying drum. The hot air blower is fixedly provided at the outer end of the air inlet channel, and a hot air air supply cavity is provided inside the connecting sleeve. A hot air supply channel is provided between the rotating ring, the rear connecting plate and the scraper seat in the same anti-sticking mechanism, and a plurality of arc-shaped hot air connecting holes are provided on the inner wall of the hot air supply cavity. The hot air connecting holes are connected to the corresponding hot air supply channels, and a plurality of hot air injection holes connected to the hot air supply cavity are provided on the isolation plate at the rear end of the drying drum.

7. A dryer for preparing organic fertilizer from domestic waste according to claim 1, characterized in that: The crushing mechanism includes a rotating shaft rotatably arranged inside the drying drum, a plurality of crushing rods are evenly fixedly arranged on the surface of the rotating shaft along its length direction, and both ends of the rotating shaft are fixedly connected to the ends of the two transmission shafts close to each other.

8. A dryer for preparing organic fertilizer from domestic waste according to claim 7, characterized in that: The transmission gear set includes two gears 2 that are meshed with each other. Both gears 2 are rotatably connected to the corresponding drum support seat through a connecting shaft. The connecting shaft on one of the gears 2 is fixedly connected to one end of the adjacent transmission shaft. A drum inner gear ring is fixedly provided on the inner wall of the drying drum, and the drum inner gear ring is meshed with the corresponding gear 2.

9. A dryer for preparing organic fertilizer from domestic waste according to claim 1, characterized in that: The upper ends of the two roller support seats are fixedly connected to a lower hopper with open upper and lower openings through a connecting seat, and a downward inclined discharge guide plate is fixedly provided on the two roller support seats and below the drying roller.

10. The dryer for preparing organic fertilizer from domestic waste according to claim 1, characterized in that: An inlet and outlet opening extending along the length direction of the drying drum is provided on the outer wall of the drying drum, and a sealing door that can be slid open is provided on the inlet and outlet opening.

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