Household garbage recycling system

Abstract

The invention relates to the technical field of household garbage treatment, in particular to a household garbage recycling system, and dehydration equipment in the system comprises a bulk material throwing device and a dehydration device; the dewatering device comprises a machine shell, a roller core body, a driving module and an extruding module. The roller core body is rotationally installed in the installation cavity of the machine shell, and the two ends of the roller core body extend to the outer side of the machine shell. Extrusion grooves are formed in the peripheral side of the roller core body at equal intervals around the axis of the roller core body, water receiving cavities are formed in the positions, located on the inner sides of the extrusion grooves, in the roller core body, and micropores communicated with the water receiving cavities are evenly distributed in the inner walls of the extrusion grooves. Traditional large-batch extrusion is converted into a plurality of independent small-batch treatment units, so that the garbage amount and the accumulation thickness of single-time extrusion are limited, the dehydration pressure can uniformly penetrate through a garbage layer, the arc-shaped filter plate can be dragged by the traction mechanism to automatically extend downwards and elastically open during slag discharge, and the garbage can be conveniently discharged. A gap between the inner wall of the arc-shaped filter plate and the waste residue is enlarged, so that the pressed and attached waste residue is easier to fall off and be discharged, and the residue discharging thoroughness is improved.

Description

Technical Field

[0001] This invention relates to the field of municipal solid waste treatment technology, specifically to a municipal solid waste recycling and treatment system. Background Technology

[0002] Municipal solid waste fermentation is a biological process in which microorganisms decompose organic waste under controlled conditions. It is mainly divided into anaerobic fermentation and aerobic fermentation, which can reduce waste volume, recover resources, and reuse waste, while reducing greenhouse gas emissions. It is an important part of the comprehensive waste treatment system. Before aerobic fermentation, the waste needs to be dehydrated and dried.

[0003] Existing municipal solid waste recycling and processing systems mainly utilize compression for dehydration. The mainstream waste dehydration devices on the market involve placing the waste into a dehydration tank and squeezing out the water by pressing down with a pressure plate. However, in a single batch of compression dehydration, the processing volume is large and the waste compression stack is thick, making it difficult to remove water from the middle area, resulting in incomplete dehydration and affecting the quality of subsequent fermentation.

[0004] In addition, due to long-term stockpiling or long-distance transportation, garbage tends to clump together tightly, resulting in poor fluidity and looseness. This can easily lead to bridging and blockage during feeding, requiring frequent intervention. At the same time, the dense clumps make it more difficult for external pressure to be evenly transmitted to the interior during dehydration, easily forming a hard core with uneven moisture content, which further exacerbates the difficulty of dehydration. Summary of the Invention

[0005] The purpose of this invention is to provide a municipal solid waste recycling and processing system to solve the technical problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] A municipal solid waste recycling and treatment system includes a sorting device, a crushing device, a dewatering device, a fermentation unit connected to the waste outlet of the dewatering device, and a wastewater treatment unit connected to the drainage pipe of the dewatering device, all connected in series. The dewatering device includes a bulk material feeding device and a dewatering unit. The dewatering unit includes a housing, a roller core, a drive module, and a compression module. The roller core is rotatably installed in the mounting cavity of the housing, and both ends of the roller core extend to the outer side of the housing. Compression grooves are equidistantly arranged around the axis of the roller core. A water receiving cavity is opened inside each compression groove in the roller core. Micropores communicating with the water receiving cavity are evenly distributed on the inner wall of the compression groove. An arc-shaped filter plate is provided in each compression groove. The bulk material feeding device is located above the housing and is used to break up the waste and put it into the compression groove that moves to the top. The drive module is located on one side of the roller core and is used to drive the roller core to rotate. The compression module is located on one side of the housing and is used to compress the waste in the corresponding compression groove.

[0008] Preferably, the lower part of the casing has a collection chamber that communicates with the mounting cavity; during the rotation of the roller core, when the opening of the extrusion groove faces downward, the extruded waste residue can be discharged into the collection chamber; the cross-section of the extrusion groove is arc-shaped; the arc-shaped filter plate is made of elastic metal plate, and the roller core is provided with a traction mechanism connected to each arc-shaped filter plate; when the extrusion groove moves to the state where the opening faces downward, the traction mechanism can pull the arc-shaped filter plate inside it downward to the outside, so that the arc-shaped filter plate resets and opens, so that the extruded waste residue can be discharged.

[0009] Preferably, the traction mechanism includes a disc, a traction rod, and a limiting rod; a central cavity is formed inside the roller core, and the disc is disposed within the central cavity; a fixing rod is rotatably mounted inside the roller core, one end of which extends into the central cavity and is fixed to the disc, and the other end extends to the outside of the roller core and is fixed to the outer wall of the casing; a first arc-shaped groove and a second arc-shaped groove are respectively formed on the upper and lower surfaces of the disc side surface; the first arc-shaped groove is a portion of a circle, and the second arc-shaped groove is a portion of an ellipse, with their ends corresponding to each other and connecting to form a downwardly convex guide groove; each arc-shaped filter plate... A traction rod is fixed at the center, and the traction rod slides through and extends into the central cavity; a limit rod is installed at the end of each traction rod away from the arc-shaped filter plate, and each limit rod is movably limited within the guide groove on the side of the disc; when the limit rod moves to the lowest protrusion position of the guide groove, the opening of the corresponding arc-shaped filter plate faces directly downward and moves down to the outside of the extrusion groove; after the limit rod passes the lowest protrusion position of the guide groove, and before the arc-shaped filter plate enters the installation cavity, the arc-shaped filter plate is pulled back into the extrusion groove by the retraction of the guide groove.

[0010] Preferably, a water collection cavity is provided on one side of the roller core, and one end of each water receiving cavity is connected to the water collection cavity; a water collection cover is rotatably fitted on the outside of the roller core at the position corresponding to the water collection cavity, and a number of flow holes are evenly distributed in a ring on the inner wall of the water collection cavity, all of which are connected to the water collection cover; the water collection cover is fixedly connected to the machine casing, and a drain pipe is provided at the bottom of the water collection cover.

[0011] Preferably, the housing is fixed on the frame; the drive module includes a drive motor and a drive spindle; the drive motor is fixed on the frame via a motor mount; one end of the drive spindle is fixed to the side of the roller core, and the other end is fixed to the output shaft of the drive motor.

[0012] Preferably, the extrusion module includes a side shell, an extrusion body, and a telescopic cylinder; the side shell is disposed on the side of the machine housing and communicates with the mounting cavity; the extrusion body is slidably installed inside the side shell, and the shape of the extrusion body is adapted to the arc-shaped filter plate; the telescopic cylinder is horizontally fixed outside the side shell and extends radially along the roller core; the telescopic end of the telescopic cylinder extends through into the side shell and is fixedly connected to the extrusion body, for driving the extrusion body to feed and retract.

[0013] Preferably, the bulk material dispensing device includes a feeding hopper and several material dispensing rods; the feeding hopper is fixed to the top of the machine casing and communicates with the mounting cavity; a rotating shaft is rotatably installed through one side above the feeding hopper, and the rotating shaft is connected to the drive shaft through a pulley set; a disc frame is fixed on the end of the rotating shaft inside the feeding hopper, and several material dispensing rods are fixed in a ring array around the side of the disc frame along its axis.

[0014] Preferably, sliding plate frames are respectively fitted and slidably installed on the inner walls of both sides of the feeding hopper, and the two sliding plate frames are fixedly connected by a connecting rod; a downwardly inclined guide plate is fixed on the side of the two sliding plate frames that are close to each other, and the guide plates on the two sliding plate frames are staggered and interspersed.

[0015] Preferably, a vertically extending clearance groove is provided on one side of the feeding hopper, and a movable rod is movably installed through the clearance groove. One end of the movable rod is fixed to one of the sliding plate frames, and the other end extends through to the outside of the feeding hopper. A linkage mechanism is provided on the side of the feeding hopper, which is connected to the outer end of the movable rod and is used to drive the movable rod to reciprocate up and down.

[0016] Preferably, the linkage mechanism includes a drive disc, a drive rod, and a long trough plate; a side frame is fixed to the side of the feeding hopper, and a slide rod is vertically and slidably installed on the side frame; the long trough plate is fixed to the top of the slide rod, a connecting arm is fixed to the bottom of the slide rod, and the connecting arm is fixedly connected to the outer end of the movable rod; the drive disc is fixed to the end of the rotating shaft, the drive rod is eccentrically fixed to the side of the drive disc, and the long trough plate is limited and fitted on the drive rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0018] This invention, by setting multiple extrusion grooves on the outside of the roller core, distributes waste sequentially into each extrusion groove during rotation, transforming the traditional large-batch extrusion into multiple independent small-batch processing units. This limits the amount of waste and the thickness of the accumulation in a single extrusion, allowing the dehydration pressure to penetrate the waste layer evenly. It avoids the problem of incomplete dehydration in the central area due to pressure attenuation, improves the overall dehydration effect, and provides more qualified materials for subsequent fermentation processes.

[0019] This invention utilizes a traction mechanism to automatically extend and elastically open the arc-shaped filter plate during slag discharge, increasing the gap between the inner wall of the arc-shaped filter plate and the waste slag. This makes it easier for the pressure-adhered waste slag to detach and be discharged, improving the thoroughness of slag discharge. During the rotation and recycling process, the arc-shaped filter plate can be automatically pulled back into the extrusion groove, ensuring that the arc-shaped filter plate can stably adhere to and bear the waste in subsequent extrusion positions. This achieves the integration of automatic opening and slag discharge and precise repositioning of the arc-shaped filter plate, effectively preventing residue adhesion and retention, and ensuring continuous, efficient, and stable operation of the dewatering process.

[0020] The bulk material feeding device in this invention integrates the dual functions of agitation and impact with reciprocating vibration. The rotating material bar initially breaks up the fed waste to prevent bridging. Through the linkage mechanism, the rotational motion is converted into the vertical reciprocating motion of the sliding plate frame and the guide plate, which continuously shakes and impacts the waste, further breaking up any clumps. This ensures continuous and unblocked waste feeding, providing a loose and easily compressible material base for subsequent extrusion and dewatering, and enabling the extrusion force to be transmitted more effectively. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a municipal solid waste recycling and processing system. Figure 2 A schematic diagram of the overall structure of the dehydration equipment in the recycling system; Figure 3 for Figure 2 The diagram shows a partial structure. Figure 4 This is a schematic diagram of a partial structure of the outer side of the casing in this invention; Figure 5 for Figure 4 One of the schematic diagrams of a partial structural cross-section shown; Figure 6 for Figure 4 The second schematic diagram of the partial structural cross-section shown; Figure 7 This is a schematic diagram of the traction mechanism structure in this invention; Figure 8 This is a schematic diagram of a partial structure of the outer side of the feeding hopper in this invention; Figure 9 for Figure 8 One of the schematic diagrams of a partial structural cross-section shown; Figure 10 This is a schematic diagram of the linkage mechanism structure in this invention; Figure 11 for Figure 8 The second schematic diagram of the partial structural cross-section shown.

[0022] In the diagram: 01. Sorting equipment; 02. Crushing equipment; 03. Dewatering equipment; 04. Fermentation unit; 05. Wastewater treatment unit; 1. Casing; 11. Mounting cavity; 12. Collection cavity; 2. Roller core; 201. Central cavity; 21. Extrusion groove; 22. Water receiving cavity; 23. Water collection cavity; 24. Water collection cover; 25. Flow hole; 26. Drain pipe; 3. Arc-shaped filter plate; 4. Drive motor; 41. Drive shaft; 42. Drive pulley; 43. Driven pulley; 44. Transmission belt; 5. Side shell; 51. Extrusion body; 52. Telescopic cylinder; 6. Traction mechanism; 61. Disc; 62. First arc-shaped groove; 63. Second arc-shaped groove; 64. Traction rod; 65. Limiting rod; 66. Fixing rod; 7. Feeding hopper; 701. Clearing groove; 702. Side frame; 71. Rotating shaft; 72. Disc frame; 73. Distributing rod; 8. Sliding plate frame; 81. Connecting rod; 82. Guide plate; 83. Movable rod; 9. Linkage mechanism; 91. Drive disc; 92. Drive rod; 93. Long groove plate; 94. Slide rod; 95. Connecting arm. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the embodiments: This invention is not limited to the specific embodiments listed below. Those skilled in the art can implement this invention using various other specific embodiments based on the content disclosed herein. Any modifications or alterations made to the design structure and concept of this invention fall within the protection scope of this invention. It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances. Example 1

[0026] Please see Figures 1-11 This invention provides a municipal solid waste recycling and treatment system, comprising a sorting device 01, a crushing device 02, a dewatering device 03, a fermentation unit 04 connected to the waste residue outlet of the dewatering device 03, and a wastewater treatment unit 05 connected to the drain pipe 26 of the dewatering device 03, connected in series. The collected municipal solid waste is first sorted by the sorting device 01. The sorted organic waste is crushed into small fragments by the crushing device 02, and then dewatered and dried by the dewatering device 03. The dewatered waste residue is transferred to the fermentation unit 04 for fermentation, while the wastewater is discharged from the drain pipe 26 of the dewatering device 03 to the wastewater treatment unit 05 for further treatment. The sorting device 01, the crushing device 02, the fermentation unit 04, and the wastewater treatment unit 05 all adopt existing technologies, and their specific structures and working principles will not be described in detail.

[0027] The dewatering equipment 03 includes a bulk material feeding device and a dewatering device. The dewatering device includes a housing 1, a roller core 2, a drive module, and an extrusion module. The housing 1 is fixed on the frame (not marked in the figure). The housing 1 has an installation cavity 11 with a circular cross-section. The roller core 2 is rotatably installed in the installation cavity 11 of the housing 1, and both ends of the roller core 2 extend to the outside of the housing 1. At the same time, the outer wall of the roller core 2 is tightly and movably fitted with the inner wall of the installation cavity 11, which also has a sealing effect.

[0028] like Figure 5 As shown, four extrusion grooves 21 are equidistantly arranged around the axis of the roller core 2. A water receiving cavity 22 is opened inside each extrusion groove 21. Micropores (not marked in the figure) communicating with the water receiving cavity 22 are evenly distributed on the inner wall of the extrusion groove 21. An arc-shaped filter plate 3 is provided in each extrusion groove 21. The extruded sewage flows into the water receiving cavity 22 through the holes on the arc-shaped filter plate 3 and the micropores on the inner wall of the extrusion groove 21 for sewage collection. The bulk material feeding device is located above the machine casing 1 and is used to break up the garbage and put it into the extrusion groove 21 that has been moved to the top. The drive module is located on one side of the roller core 2 and is used to drive the roller core 2 to rotate. The extrusion module is located on one side of the machine casing 1 and is used to extrude the garbage in the corresponding extrusion groove 21.

[0029] like Figure 4As shown, the drive module includes a drive motor 4 and a drive spindle 41. The drive motor 4 is fixed on the frame by a motor mount (not shown in the figure). One end of the drive spindle 41 is fixed to the side of the roller core 2, and the other end is fixed to the output shaft of the drive motor 4. The drive spindle 41 and the roller core 2 are coaxial. When the drive motor 4 is working, its output shaft can drive the roller core 2 to rotate in the mounting cavity 11 under the connecting transmission action of the drive spindle 41.

[0030] like Figure 4 and Figure 5 As shown, the extrusion module includes a side shell 5, an extrusion body 51, and a telescopic cylinder 52. The side shell 5 is located on the side of the housing 1 and communicates with the mounting cavity 11. The side shell 5 extends horizontally along the radial direction of the roller core 2. The extrusion body 51 is slidably installed inside the side shell 5, and the shape of the extrusion body 51 is adapted to the arc-shaped filter plate 3. The telescopic cylinder 52 is horizontally fixed outside the side shell 5 and extends radially along the roller core 2. The telescopic end of the telescopic cylinder 52 extends through into the side shell 5 and is fixedly connected to the extrusion body 51. When the telescopic cylinder 52 is working, its telescopic end can drive the extrusion body 51 to move left and right along the radial direction of the roller core 2, thereby realizing the feeding extrusion and retraction reset of the extrusion body 51.

[0031] like Figure 4 As shown, the lower part of the housing 1 has a material collection chamber 12 that communicates with the mounting cavity 11. The material collection chamber 12 is funnel-shaped with a larger upper part and a smaller lower part and a waste slag outlet at the bottom. During the rotation of the roller core 2, when the opening of the extrusion groove 21 faces downward, the extruded waste slag inside can be discharged into the material collection chamber 12.

[0032] The working principle of this embodiment is as follows: The drive module drives the roller core 2 to rotate intermittently at a predetermined speed, so that the positions of the four extrusion grooves 21 change periodically around the axis of the roller core 2. When one of the extrusion grooves 21 moves to the point where the opening faces upward, the garbage fragments shaken by the bulk material feeding device fall from top to bottom into the extrusion groove 21 to replenish the garbage. The roller core 2 continues to rotate until the extrusion groove 21 containing garbage moves to the point where the opening faces and aligns with the extrusion body 51. The roller core 2 stops rotating and the telescopic cylinder 52 extends. Its telescopic end pushes the extrusion body 51 to one side of the roller core 2. Finally, the extrusion body 51 matches and enters the extrusion groove 21, and cooperates with the arc-shaped filter plate 3 to squeeze out the sewage in the garbage. The squeezed sewage flows into the water receiving chamber 22 through the filter holes on the arc-shaped filter plate 3 and the micropores on the inner wall of the extrusion groove 21. Subsequently, the drive module drives the roller core 2 to continue rotating, causing the squeezing groove 21 containing dehydrated waste residue to move to an opening facing downwards. The waste residue falls into the collection chamber 12 and is then discharged through the waste residue outlet into the fermentation unit 04 for fermentation.

[0033] When one of the extrusion grooves 21 is aligned with the extrusion body 51, the extrusion groove 21 adjacent to one side of the extrusion groove 21 is in the loading state with its opening facing upwards, and the extrusion groove 21 adjacent to the other side of the extrusion groove 21 is in the slag discharge state with its opening facing downwards. This allows the loading, extrusion dewatering and slag discharge processes to be completed sequentially and synchronously during the interval when the roller core 2 stops rotating, reducing the idle waiting time between processes, increasing the equipment throughput, ensuring the accuracy of each action position and stable execution, and simplifying the control logic, making the entire dewatering process continuous and smooth.

[0034] Furthermore, by setting multiple extrusion grooves 21 on the outside of the roller core 2, the waste is sequentially diverted into each extrusion groove 21 for small-batch processing during the rotation of the roller core 2. This allows for control of the amount of waste dewatered in a single operation, preventing uneven pressure distribution and incomplete dewatering caused by an excessively thick waste layer. This, in turn, improves dewatering efficiency and drying effect. At the same time, compartmentalized processing reduces the force and energy consumption required for a single extrusion, lightens the load on the equipment, and extends the service life of the corresponding components. Example 2

[0035] Please see Figures 5-7 The difference between this embodiment and Embodiment 1 is that: The cross-section of the extrusion groove 21 is arc-shaped. The arc-shaped filter plate 3 uses a 3mm thick elastic metal plate as a substrate. Several evenly distributed filter holes are opened on the substrate to obtain the arc-shaped filter plate 3. When the arc-shaped filter plate 3 is completely embedded in the extrusion groove 21, the arc-shaped filter plate 3 will be deformed into an arc shape matching the extrusion groove 21 due to the extrusion of the inner wall of the extrusion groove 21. The roller core 2 is provided with a traction mechanism 6 connected to each arc-shaped filter plate 3. When the extrusion groove 21 moves to the opening facing downward, the traction mechanism 6 can pull the arc-shaped filter plate 3 inside it downward to the outside. The arc-shaped filter plate 3 that has moved downward to the outside will reset and open under the action of elastic force because it lacks the extrusion limit formed by the inner wall of the extrusion groove 21. Figure 7 The lowermost arc-shaped filter plate (3) has an increased opening angle, which loosens the filter and makes it easier for the waste residue to fall downwards after dewatering.

[0036] like Figure 6 and Figure 7 As shown, the traction mechanism 6 includes a disc 61, a traction rod 64, and a limiting rod 65. A central cavity 201 is provided inside the roller core 2. The disc 61 is disposed in the central cavity 201. A fixing rod 66 is rotatably installed inside the roller core 2. One end of the fixing rod 66 extends into the central cavity 201 and is fixed to the disc 61. The other end extends to the outside of the roller core 2 and is fixed to the outer wall of the housing 1. This allows the disc 61 and the roller core 2 to rotate relative to each other. The fixing rod 66 is fixed to the housing 1 to ensure that the disc 61 does not rotate synchronously with the roller core 2.

[0037] The upper and lower sides of the disc 61 are respectively provided with a first arc-shaped groove 62 and a second arc-shaped groove 63. The first arc-shaped groove 62 is a part of a circle, and the second arc-shaped groove 63 is a part of an ellipse. The two ends of the two are connected one to one to form a guide groove. The guide groove protrudes downward due to the shape of the second arc-shaped groove 63. A traction rod 64 is fixed at the center of each arc-shaped filter plate 3. The traction rod 64 slides through and extends into the central cavity 201. A limit rod 65 is installed at the end of each traction rod 64 away from the arc-shaped filter plate 3. Each limit rod 65 is movably limited within the guide groove on the side of the disc 61.

[0038] As the roller core 2 rotates, each traction rod 64 and limiting rod 65 can rotate synchronously around the axis of the roller core 2. At the same time, each limiting rod 65 will move along the trajectory of the guide groove. Within one rotation cycle of the roller core 2, the limiting rod 65 will complete one reciprocating motion along the radial direction of the roller core 2 due to the deformation of the guide groove. Specifically, when the limiting rod 65 moves to the lowest protrusion position of the guide groove, the opening of the extrusion groove 21 and the arc-shaped filter plate 3 corresponding to the position of the limiting rod 65 is facing directly downward. Under the limiting and guiding action of the first arc-shaped groove 62 on the limiting rod 65 and the traction action of the traction rod 64, the arc-shaped filter plate 3 is pushed downward to the outside of the extrusion groove 21. Under the elastic force of the material, the arc-shaped filter plate 3 will reset and open. Since the compressed waste residue is tightly attached to the inner wall of the arc-shaped filter plate 3, it is not easy to fall out. The gap between the opened arc-shaped filter plate 3 and the extruded waste residue increases, which facilitates the discharge of waste residue in the arc-shaped filter plate 3.

[0039] Furthermore, after the limiting rod 65 passes the lowest protrusion of the guide groove and before the arc-shaped filter plate 3 enters the mounting cavity 11, the corresponding part of the guide groove is in a retracted state. The retracted shape of this part of the guide groove has a limiting and guiding effect on the limiting rod 65. Together with the traction rod 64, the arc-shaped filter plate 3 can be pulled back into the extrusion groove 21, realizing the automatic installation of the arc-shaped filter plate 3. The arc-shaped filter plate 3 will undergo adaptive deformation again due to the extrusion of the inner wall of the extrusion groove 21.

[0040] During the rotation of the roller core 2, the traction mechanism 6 can automatically extend the arc-shaped filter plate 3 downwards and elastically open it during slag discharge, increasing the gap between the inner wall of the arc-shaped filter plate 3 and the waste residue, making it easier for the pressure-adhered waste residue to fall off and be discharged, thus improving the thoroughness of slag discharge. During the rotation and recycling process, the arc-shaped filter plate 3 can be automatically pulled back into the extrusion groove 21, ensuring that the arc-shaped filter plate 3 can stably adhere to and carry the waste in the subsequent extrusion station. This achieves the integration of automatic opening and slag discharge and precise resetting of the arc-shaped filter plate 3, effectively avoiding residue adhesion and retention, and ensuring continuous, efficient and stable operation of the dewatering process.

[0041] Furthermore, the movement adjustment of the arc-shaped filter plate 3 depends on the traction effect provided by the traction mechanism 6 during the rotation of the roller core 2. The extension and retraction of the arc-shaped filter plate 3 are highly integrated with the rotation of the roller core 2, eliminating the need for additional drive, reducing drive costs, and ensuring precise timing and high stability. Example 3

[0042] Please see Figure 6 Based on the aforementioned embodiment, a water collection cavity 23 is also provided on one side of the roller core 2. One end of each water receiving cavity 22 is connected to the water collection cavity 23. A water collection cover 24 is rotatably fitted on the outside of the roller core 2 at the position corresponding to the water collection cavity 23. A number of flow holes 25, which are all connected to the water collection cover 24, are evenly distributed in a ring on the inner wall of the water collection cavity 23. The water collection cover 24 is fixedly connected to the outside of the housing 1, so that the water collection cover 24 does not rotate synchronously with the roller core 2. A drain pipe 26 is provided at the bottom of the water collection cover 24. The sewage squeezed out flows into the water receiving cavity 22 through the filter holes on the arc-shaped filter plate 3 and the micropores on the inner wall of the squeezing groove 21. Then, the sewage flows into the water collection cavity 23 on the side through the water receiving cavity 22, and flows into the water collection cover 24 through the flow holes 25. Finally, it is discharged into the sewage treatment unit 05 through the drain pipe 26 for subsequent sewage treatment.

[0043] Each water receiving chamber 22 is inclined towards the water collecting chamber 23 to ensure that the sewage in the water receiving chamber 22 can be quickly and completely discharged into the water collecting chamber 23, and to prevent sewage from flowing back and being reabsorbed by garbage and waste residue; the water collecting cover 24 and the roller core 2 are arranged to rotate relative to each other. When the roller core 2 rotates, the water collecting cover 24 will not rotate synchronously. At the same time, multiple flow holes 25 are distributed in a ring to facilitate the smooth discharge of sewage in the water collecting chamber 23 during the rotation of the roller core 2, and to prevent excessive accumulation of sewage and backflow into the water receiving chamber 22. Example 4

[0044] Please see Figure 2 , Figure 3 , Figure 8 and Figure 9 Based on the foregoing embodiments, this embodiment provides a detailed explanation of the bulk material dispensing device in Embodiment 1, as follows: The bulk material dispensing device includes a feeding hopper 7 and several dispensing rods 73. The feeding hopper 7 is fixed to the top of the housing 1 and communicates with the mounting cavity 11. A rotating shaft 71 is rotatably mounted through one side above the feeding hopper 7. The rotating shaft 71 is connected to the drive shaft 41 via a pulley set. A disc frame 72 is fixed to the end of the rotating shaft 71 inside the feeding hopper 7. Several dispensing rods 73 are fixed in a ring array around the side of the disc frame 72. Each dispensing rod extends along the width direction of the feeding hopper, and the dispensing rods 73 are close to the outer edge of the disc frame 72 and distributed in a ring array around the axis of the disc frame 72. Combined with the dynamic rotation and stirring effect of the disc frame 72 and the dispensing rods 73, the dispensing area of ​​the dispensing rods 73 is sufficient to cover the cross-sectional area of ​​the feeding hopper 7.

[0045] After organic waste is put into the feeding hopper 7, the drive shaft 41 rotates, and under the transmission of the pulley group, it can drive the rotating shaft 71 and the disc frame 72 to rotate simultaneously. The disc frame 72 can drive each material distribution rod 73 to rotate around its axis, which can break up the waste in the upper part of the feeding hopper 7 and avoid bridging and blockage during feeding. Since the roller core 2 and the drive shaft 41 rotate intermittently, the rotating shaft 71 will not rotate continuously. Even if the waste bridges and blocks at the entrance of the feeding hopper 7 due to the interval of the rotating shaft 71 stopping, the rotating shaft 71 can break up the bridged and blocked waste when it follows the roller core 2 to rotate again, and the smooth feeding can still be guaranteed.

[0046] Among them, such as Figure 3 As shown, the pulley assembly includes a drive pulley 42 fixedly mounted on the drive shaft 41, a driven pulley 43 fixedly mounted on the rotating shaft 71, and a transmission belt 44 mounted on the drive pulley 42 and the driven pulley 43. When the drive motor 4 drives the drive shaft 41 to rotate, the drive pulley 42, under the transmission action of the transmission belt 44, can drive the driven pulley 43 and the rotating shaft 71 to rotate simultaneously, realizing the linkage between the material bar 73 stirring and hitting the material and the rotation adjustment of the roller core 2, without the need for an additional drive source. Example 5

[0047] Please see Figures 8 to 11 The difference between this embodiment and embodiment 4 is that: Sliding plate frames 8 are respectively fitted and slidably installed on the inner walls of both sides of the feeding hopper 7. The two sliding plate frames 8 are fixedly connected by a connecting rod 81, and the two sliding plate frames 8 are fixed as one unit by the connecting rod 81. On the side of the two sliding plate frames 8 that are close to each other, there is a downward inclined guide plate 82, which facilitates the downward sliding of garbage. The guide plates 82 on both sides of the sliding plate frames 8 are staggered and interspersed. When the garbage on the upper guide plate 82 slides onto the lower guide plate 82, it will be impacted and scattered. The continuous sliding process is conducive to further dispersing of garbage.

[0048] A vertically extending clearance groove 701 is provided on one side of the feeding hopper 7. A movable rod 83 is movably installed through the clearance groove 701. One end of the movable rod 83 is fixed to one of the sliding plate frames 8, and the other end extends through to the outside of the feeding hopper 7. A linkage mechanism 9 is provided on the side of the feeding hopper 7. The linkage mechanism 9 is connected to the outer end of the movable rod 83 and is used to drive the movable rod 83 to reciprocate up and down.

[0049] The linkage mechanism 9 includes a drive disc 91, a drive rod 92, and a long trough plate 93. A side frame 702 is fixed to the side of the feeding hopper 7, and a slide rod 94 is vertically slidably installed on the side frame 702. The long trough plate 93 is fixed to the top of the slide rod 94, and a connecting arm 95 is fixed to the bottom of the slide rod 94. The connecting arm 95 is fixedly connected to the outer end of the movable rod 83. The drive disc 91 is fixed to the end of the rotating shaft 71, and the drive rod 92 is eccentrically fixed to the side of the drive disc 91. The long trough plate 93 is limited and fitted on the drive rod 92.

[0050] The long trough plate 93 extends horizontally, and the drive disc 91 and drive rod 92 can rotate synchronously with the rotating shaft 71, causing the height of the drive rod 92 to change back and forth. Under the limiting action of the long trough plate 93 and drive rod 92, the rotating drive disc 91 can drive the slide rod 94 to move up and down back and forth. Under the connection of the connecting arm 95 and the movable rod 83, the sliding plate frame 8 and the guide plate 82 on both sides move up and down synchronously. Under the action of inertia and gravity, a multi-level vibration and impact effect is formed, which can further shake apart the clumps of waste so that the squeezing pressure can be evenly transmitted between the waste, further improving the thoroughness of dewatering. In addition, the rotation drive of the rotating shaft 71 is converted into the lifting drive of the sliding plate frame 8 by the linkage mechanism 9, eliminating the need for an additional drive source and further reducing the drive cost.

[0051] No matter how the sliding plate frame 8 on one side moves between the upper and lower extreme positions, it can cover and shield the relief groove 701 to prevent garbage and sewage from seeping out of the relief groove 701.

[0052] The guide plates 82 on both sides are inclined downwards and staggered to form a guide gap, which facilitates the discharge of waste.

[0053] In addition, each guide plate 82 has multiple hollowed-out grooves (not shown in the figure) to facilitate the direct fall of small-volume waste that meets the size requirements, thereby reducing the discharge pressure of the guide gap between the two guide plates 82.

[0054] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Therefore, the present invention will not explain the control method and circuit connection in detail.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A municipal solid waste recycling and treatment system, comprising a sorting device (01), a crushing device (02), a dewatering device (03), a fermentation unit (04) connected to the waste outlet of the dewatering device (03), and a wastewater treatment unit (05) connected to the drain pipe (26) of the dewatering device (03) in series, characterized in that: The dewatering equipment (03) includes a bulk material feeding device and a dewatering device; The dewatering device includes a housing (1), a roller core (2), a drive module, and an extrusion module; The roller core (2) is rotatably installed in the mounting cavity (11) of the housing (1), and both ends of the roller core (2) extend to the outside of the housing (1); The roller core (2) is provided with extrusion grooves (21) at equal intervals around its axis. A water receiving cavity (22) is provided inside the roller core (2) on the inner side of each extrusion groove (21). Microholes communicating with the water receiving cavity (22) are evenly distributed on the inner wall of the extrusion groove (21). An arc-shaped filter plate (3) is provided in each extrusion groove (21). The bulk material feeding device is located above the casing (1) and is used to break up the garbage and put it into the compression groove (21) that moves to the top. The drive module is located on one side of the roller core (2) and is used to drive the roller core (2) to rotate. The extrusion module is located on one side of the machine casing (1) and is used to extrude the waste in the corresponding extrusion groove (21).

2. The municipal solid waste recycling and treatment system according to claim 1, characterized in that: The housing (1) has a material collection chamber (12) below it that communicates with the mounting cavity (11). During the rotation of the roller core (2), when the opening of the extrusion groove (21) faces downward, the extruded waste residue can be discharged into the collection chamber (12); The cross-section of the extrusion groove (21) is arc-shaped; The arc-shaped filter plate (3) is made of elastic metal plate, and the roller core (2) is provided with a traction mechanism (6) connected to each arc-shaped filter plate (3). When the extrusion groove (21) moves to the state of opening downward, the traction mechanism (6) can pull the arc-shaped filter plate (3) inside it downward to the outside, so that the arc-shaped filter plate (3) can be reset and opened so that the extruded garbage residue can be discharged.

3. A municipal solid waste recycling and treatment system according to claim 2, characterized in that: The traction mechanism (6) includes a disc (61), a traction rod (64), and a limiting rod (65). The roller core (2) has a central cavity (201) inside, and the disc (61) is disposed inside the central cavity (201); A fixing rod (66) is rotatably installed inside the roller core (2). One end of the fixing rod (66) extends into the central cavity (201) and is fixed to the disc (61), while the other end extends to the outside of the roller core (2) and is fixed to the outer wall of the housing (1). The disk (61) has a first arc-shaped groove (62) and a second arc-shaped groove (63) respectively on its side surface. The first arc-shaped groove (62) is a part of a circle, and the second arc-shaped groove (63) is a part of an ellipse. The two ends of the two are connected one-to-one to form a guide groove with a downward convex shape. Each arc-shaped filter plate (3) has a traction rod (64) fixed at its center, and the traction rod (64) slides through and extends into the central cavity (201); Each of the traction rods (64) is equipped with a limiting rod (65) at the end away from the arc-shaped filter plate (3), and each of the limiting rods (65) is movably limited in the guide groove on the side of the disc (61); When the limiting rod (65) moves to the lowest protrusion position of the guide groove, the corresponding arc-shaped filter plate (3) opens directly downward and moves down to the outside of the extrusion groove (21); After the limiting rod (65) passes the lowest protrusion of the guide groove, and before the arc-shaped filter plate (3) enters the mounting cavity (11), the arc-shaped filter plate (3) is pulled back into the extrusion groove (21) by the retraction of the guide groove.

4. A municipal solid waste recycling and treatment system according to claim 1, characterized in that: The roller core (2) is provided with a water collection cavity (23) on one side, and one end of each water receiving cavity (22) is connected to the water collection cavity (23); The roller core (2) is fitted with a water collection cover (24) at a position corresponding to the water collection cavity (23) on its outside. The inner wall of the water collection cavity (23) is evenly distributed with several flow holes (25) that are all connected to the water collection cover (24). The water collection cover (24) is fixedly connected to the housing (1), and the drain pipe (26) is provided at the bottom of the water collection cover (24).

5. A municipal solid waste recycling and treatment system according to claim 1, characterized in that: The housing (1) is fixed to the frame; The drive module includes a drive motor (4) and a drive spindle (41). The drive motor (4) is fixed to the frame by a motor mount; One end of the drive spindle (41) is fixed to the side of the roller core (2), and the other end is fixed to the output shaft of the drive motor (4).

6. A municipal solid waste recycling and treatment system according to claim 1, characterized in that: The extrusion module includes a side shell (5), an extrusion body (51), and a telescopic cylinder (52). The side shell (5) is disposed on the side of the housing (1) and communicates with the mounting cavity (11); The extrusion body (51) is slidably installed inside the side shell (5), and the shape of the extrusion body (51) is adapted to the arc-shaped filter plate (3); The telescopic cylinder (52) is horizontally fixed to the outside of the side shell (5) and extends radially along the roller core (2); The telescopic cylinder (52) extends through the side shell (5) and is fixedly connected to the extrusion body (51) to drive the extrusion body (51) to feed and retract.

7. A municipal solid waste recycling and treatment system according to claim 5, characterized in that: The bulk material feeding device includes a feeding hopper (7) and several bulk material rods (73); The feeding hopper (7) is fixed to the top of the housing (1) and communicates with the mounting cavity (11); A rotating shaft (71) is rotatably mounted through one side above the feeding hopper (7), and the rotating shaft (71) is connected to the drive shaft (41) via a belt pulley group. The rotating shaft (71) is fixed with a disc frame (72) at its end inside the feeding hopper (7), and a number of the material dispensing rods (73) are fixed in a ring array around its axis on the side of the disc frame (72).

8. A municipal solid waste recycling and treatment system according to claim 7, characterized in that: The inner walls of the two sides of the feeding hopper (7) are respectively fitted and slidably installed with sliding plate frames (8), and the two sliding plate frames (8) are fixedly connected by connecting rods (81). Both sliding plate frames (8) have a downwardly inclined guide plate (82) fixed on the side that is close to each other, and the guide plates (82) on the two sliding plate frames (8) are staggered and interspersed.

9. A municipal solid waste recycling and treatment system according to claim 8, characterized in that: The feeding hopper (7) has a vertically extending clearance groove (701) on one side. A movable rod (83) is installed through the clearance groove (701). One end of the movable rod (83) is fixed to one of the sliding plate frames (8), and the other end extends through to the outside of the feeding hopper (7). The feeding hopper (7) is provided with a linkage mechanism (9) on its side. The linkage mechanism (9) is connected to the outer end of the movable rod (83) and is used to drive the movable rod (83) to reciprocate up and down.

10. A municipal solid waste recycling and treatment system according to claim 9, characterized in that: The linkage mechanism (9) includes a drive disc (91), a drive rod (92), and a long slot plate (93). The feeding hopper (7) is fixed with a side frame (702), and a slide rod (94) is vertically slidably installed on the side frame (702). The long slot plate (93) is fixed on the top of the slide rod (94), and a connecting arm (95) is fixed at the bottom of the slide rod (94), and the connecting arm (95) is fixedly connected to the outer end of the movable rod (83); The drive disc (91) is fixed on the end of the rotating shaft (71), the drive rod (92) is eccentrically fixed on the side of the drive disc (91), and the long slot plate (93) is limited and fitted on the drive rod (92).

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