Multi-stage garbage treatment and comprehensive utilization device

Abstract

The invention relates to the technical field of kitchen waste treatment and collection and resource recycling, in particular to a waste multi-stage treatment and comprehensive utilization device which comprises a bottom frame, a horizontal cylinder is horizontally arranged between two positioning vertical seats, and the two ends of the horizontal cylinder penetrate through center holes of the positioning vertical seats on the corresponding sides of the horizontal cylinder and are oppositely and fixedly connected. A multi-stage feeding transmission structure is installed at the right end of the horizontal cylinder, a plurality of garbage screening and filtering mechanisms are installed in an inner cylinder cavity of the horizontal cylinder, the right ends of the garbage screening and filtering mechanisms are connected with the corresponding ends of the multi-stage feeding transmission structure, and slag discharging mechanisms are installed in through holes in a left end cover of the horizontal cylinder respectively. And a hydraulic motor is mounted in the center of the left end cover. According to the multi-stage feeding transmission structure, a sun gear, a planetary feeding assembly, an outer gear ring and the like are integrated in a small space at the right end of the horizontal cylinder, the space is effectively utilized, the whole garbage treatment device is more compact in structure, equipment installation and maintenance are facilitated, and equipment miniaturization and integrated design is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of processing, collecting and resource recycling of restaurant and kitchen waste, in particular to a garbage multi-stage processing and comprehensive utilization device. Background Art

[0002] Kitchen waste has the characteristics of high water content, rich organic matter content, easy to decay, and breeding bacteria. If it is not handled properly, it will cause many adverse effects on the environment and hygiene. But at the same time, it also has a high resource utilization value and can be turned into treasure through appropriate treatment methods. Therefore, garbage disposal and resource utilization are often used to complete the treatment of kitchen waste.

[0003] After searching, a patent document with patent application number CN202222116194.4 discloses a kitchen waste treatment device for domestic waste treatment. Its main structure includes a treatment box and a slag discharge door. A feed port is opened on one side of the top of the treatment box, and an extrusion mechanism is installed in the middle of the treatment box. The motor is fixedly connected to the upper end of the treatment box through a fixed plate. A rotating shaft is fixed to the lower end of the motor. The rotating shaft rotates through the treatment box, and a crushing knife is fixed at the end. The lower end of the rotating shaft is rotatably mounted on a guide plate, and the guide plate is fixed on the inner wall of the treatment box.

[0004] It can be seen from the above records of the garbage disposal device that it mainly uses the crushing knife to crush the food waste inside the treatment box, and the crushed garbage is discharged from the slag discharge port to the filter net for filtration and extrusion through the guide plate. This structure has the crushing and extrusion functions and can achieve preliminary separation of solid and liquid. However, it has the following problems when processing food waste:

[0005] First, due to the relatively complex composition of food waste, crushing and squeezing alone cannot effectively remove harmful substances (such as heavy metals, salt, etc.) in food waste, which affects the deep processing and high-value recycling of food waste.

[0006] Secondly, the hydraulic rod in this structure, as a pushing member, needs to be immersed in a single-point compression form inside the water-containing treatment box, which makes it impossible to effectively lubricate and maintain it, and also affects its service life and safety and reliability.

[0007] Third, when the hydraulic rod drives the filter to move up and squeeze the garbage, the filter is prone to tilt due to uneven force. Because it is difficult to ensure that the entire filter rises stably in the vertical direction with only sliding supports at both ends, once tilted, not only will the squeezing effect be greatly reduced, and some areas will not be squeezed sufficiently, but it may also cause jamming and increased wear between the filter and the sliding groove, reducing the service life of the equipment and increasing maintenance costs.

[0008] Based on this, the present invention optimizes and improves the safety and treatment effect problems existing in the prior art when treating food waste, and hereby proposes a multi-stage treatment and comprehensive utilization device dedicated to food waste, so as to better solve the problems existing in the prior art. Summary of the invention

[0009] The present invention is to solve one of the above technical problems, and the technical scheme adopted is: a multi-stage garbage processing and comprehensive utilization device, including a base frame, positioning seats are symmetrically installed on both sides of the top of the base frame, a horizontal cylinder is horizontally arranged between the two positioning seats, both ends of the horizontal cylinder pass through the central holes of the positioning seats on their corresponding sides and are relatively fixedly connected, a multi-stage feeding transmission structure is installed at the right end of the horizontal cylinder, the bottom of the multi-stage feeding transmission structure is fixed above the base frame through a column, a plurality of garbage screening mechanisms are installed in the inner cylinder cavity of the horizontal cylinder, the right end of each of the garbage screening mechanisms is connected to the corresponding end of the multi-stage feeding transmission structure, a slag discharge mechanism connected to the end of the garbage screening mechanism is respectively installed in each through hole of the left end cover of the horizontal cylinder, a hydraulic motor is installed in the center of the left end cover, and a discharge pipe outlet with a valve connected to the inner cylinder cavity inside the horizontal cylinder is installed at the central bottom of the horizontal cylinder.

[0010] In any of the above schemes, it is preferred that the multi-stage feeding transmission structure includes an outer gear ring fixed above the base frame by a column, a left planetary end cover is fixedly installed on the right end surface of the outer gear ring, a sun gear coaxial with the outer gear ring is arranged at the inner center of the outer gear ring, a rotating planetary feeding assembly is arranged on the periphery of the sun gear, and a left planetary end cover and a right planetary end cover movably abutting against the outer gear ring are respectively arranged at the left and right ends of the outer gear ring, and the left and right ends of the planetary feeding assembly are movable through the corresponding rotating holes on the left and right planetary end covers on both sides thereof, and each discharge port at the left end of the planetary feeding assembly is respectively connected with the feed port of the garbage screening mechanism at the corresponding position, the right end of the sun shaft of the sun gear is movable through the center hole of the right planetary end cover and extends to its outside, and the left end of the sun shaft is movable through the center hole of the left planetary end cover and extends to its left side, and then is fixedly arranged relatively to the output shaft of the hydraulic motor, so that when the hydraulic motor rotates, the sun shaft and the sun gear can be driven to rotate.

[0011] In any of the above schemes, preferably, the planetary feeding assembly includes a planetary gear, the outer side of the planetary gear is meshed with the inner teeth of the outer gear ring, and the inner side of the planetary gear is meshed with the sun gear, the right end of the planetary tube shaft integrally formed in the center of the planetary gear is movably extended to the right side of the right planetary end cover and is used to realize quick-release connection with the pipeline of the external feeding equipment, the left end of the planetary tube shaft is movably extended to the left side of the left planetary end cover and is connected to the feed port of the garbage screening mechanism at its corresponding position, the interior of the planetary tube shaft is provided with a feed channel arranged throughout the length direction thereof, the left end of the left planetary end cover is movably and sealingly inserted into the right end of the horizontal cylinder, and the left planetary end cover is used as the left planetary end cover of the horizontal cylinder and rotates relatively sealed with the inner cylinder cavity.

[0012] In any of the above schemes, it is preferred that the garbage screening mechanism includes a screen drum arranged inside the inner cylinder cavity of the horizontal cylinder, the right end of the screen drum is coaxially connected to the left end of the planetary tube shaft through a feed end cover fixedly mounted thereon, and the feed channel of the planetary tube shaft is communicated with the centrifugal screening cavity inside the screen drum, the left end of the screen drum is connected to the slag discharge mechanism at the corresponding position through a discharge end cover fixedly mounted thereon, a plurality of screening holes are arranged on the surface of the screen drum, and the screen drum realizes rotation and revolution around the sun axis in the process of following the rotation of the planetary tube shaft.

[0013] In any of the above schemes, it is preferred that the number of the garbage screening mechanisms is three, the aperture diameters of the sieve holes on the surface of the sieve drums inside different garbage screening mechanisms are different, the aperture diameters of the sieve holes on the surface of the same sieve drum are the same, and the aperture diameters of the sieve holes on the three sieve drums are respectively divided into large aperture, medium aperture and small aperture.

[0014] The number of the garbage screening mechanisms is three, the apertures of the screening holes on the surface of the screen drums inside different garbage screening mechanisms are the same or different, and the apertures of the screening holes on the surface of the same screen drum are the same.

[0015] The apertures of the sieve holes on the three sieve drums are respectively divided into large aperture, medium aperture and small aperture; the sieve drums corresponding to the sieve holes of different apertures are used to achieve different sieve effects for different garbage.

[0016] When the specifications of the three sieve drums are exactly the same, you can choose to feed the three sieve drums simultaneously during screening to improve the screening efficiency.

[0017] When the three screen drums correspond to large aperture, medium aperture and small aperture respectively, the material is fed into the large aperture screen drum first, and the screened solid slag is discharged. After the liquid flows out, it is sent back to the device and continues to be screened through the medium aperture screen drum, and the solid slag is discharged. After the liquid is discharged, it returns to the device again and enters the small aperture screen drum. After the slag material and relatively clean liquid are discharged, subsequent deep treatment such as oil removal and drug addition is carried out.

[0018] The three sieve cylinders correspond to large aperture, medium aperture, and small aperture respectively:

[0019] Grading and screening function

[0020] Large-aperture sieve drum initial screening: As the first screening process, the large-aperture sieve drum can quickly screen out large-sized solid materials in the garbage. These large-sized solid residues are usually materials that are difficult to further process or may cause damage to subsequent processing equipment, such as branches, plastic bottles, large pieces of metal, etc. Discharging them in time can not only reduce the processing burden of subsequent sieve drums, but also protect the normal operation of subsequent equipment.

[0021] Secondary screening with medium-aperture sieve: The liquid and smaller particles after screening by the large-aperture sieve enter the medium-aperture sieve. The medium-aperture sieve will further separate medium-sized solid residues, such as smaller plastic fragments, fruit cores, etc. Through this stage of screening, the solid matter in the garbage is further refined and separated, making the material entering the small-aperture sieve purer, ready for subsequent fine screening.

[0022] Fine screening with small-aperture sieves: The small-aperture sieves perform the final fine screening on the materials after the first two screenings. It can separate tiny particles and impurities, such as fine sand, fiber, etc., and finally obtain relatively clean liquid. This grading screening method can carry out targeted processing according to the size of the garbage particles, improving the accuracy and effect of the screening.

[0023] The solid residues screened out by sieves with different apertures are of different sizes and can be classified and processed according to their characteristics. The large-sized solid residues screened out by the large-aperture sieve may be suitable for landfill or incineration; the medium-sized solid residues screened out by the medium-aperture sieve may be used as building materials or other industrial raw materials after further processing; the tiny solid residues screened out by the small-aperture sieve may also have certain utilization value in certain fields, thus realizing the resource utilization of solid residues.

[0024] In any of the above schemes, preferably, the inner end of the left end cover is movable and sealed and inserted inside the left end of the horizontal cylinder, and the left end cover and the inner cylinder cavity are relatively sealed and rotated;

[0025] The slag discharge mechanism includes a slag discharge elbow installed on the side wall on the left side of the through hole of the horizontal cylinder, the feed port of the slag discharge elbow is arranged opposite to the discharge port of the screen cylinder and the two are directly butted against each other, a slag discharge control valve is installed on the slag discharge elbow, and the right end of the slag discharge elbow extends to the inside of the centrifugal screening cavity of the screen cylinder at the corresponding position; during discharging, the outlet of the slag discharge elbow rotates with the left end cover and moves to the lower position.

[0026] In any of the above schemes, preferably, two pressure relief observation tubes are installed at intervals on both sides of the top of the horizontal cylinder, and safety valves are installed on the pressure relief observation tubes.

[0027] In any of the above schemes, preferably, the left planetary end cover and the right planetary end cover are both formed by separate assembly welding.

[0028] In any of the above schemes, it is preferred that both side surfaces of the outer gear ring, both side surfaces of the left planetary end cover, and both side surfaces of the right planetary end cover are polished to form smooth surfaces, and the left planetary end cover and the right planetary end cover are both made of brass.

[0029] In any of the above schemes, it is preferred that a connecting and conveying pipe is installed in the centrifugal screening cavity of each of the screen cylinders, the right end of the connecting and conveying pipe is fixedly connected to the planetary tube shaft and rotates with it, a blocking and fixing plug is arranged in the middle of the tube cavity of the connecting and conveying pipe, which divides the tube cavity into a right-end feeding blind pipe channel and a left-end blind pipe discharging channel, the right-end feeding blind pipe channel is connected to the feeding channel of the planetary tube shaft and is internally connected, a plurality of discharge joints connected to the interior are arranged on the right upper outer wall of the connecting and conveying pipe corresponding to the right-end feeding blind pipe channel, and a plurality of discharge funnel pipes connected to the interior are arranged on the left lower outer wall of the connecting and conveying pipe corresponding to the left-end blind pipe discharging channel, the discharge funnel pipe is used to receive the slag at the right end of the centrifugal screening cavity and enter the interior of the slag discharge elbow connected to it through the left-end blind pipe discharging channel after being continuously squeezed and fed into the left-end blind pipe discharging channel, and the left end of the connecting and conveying pipe is movably inserted in the through hole of the left end cover.

[0030] A spiral conveying and extruding blade arranged along the axial direction is fixedly provided on the outer side wall of the connecting conveying pipe, and the outer side of the spiral conveying and extruding blade is in contact with the inner cavity of the centrifugal screening chamber. When the connecting conveying pipe rotates following the planetary tube axis, it can drive the spiral conveying and extruding blade to continuously extrude and convey the slag left after the internal centrifugal screening to the left and continue to remove moisture; when revolving, the slag inside the centrifugal screening chamber is continuously tumbled to avoid the accumulation of slag and make the slag continuously enter the discharge funnel tube when tumbling, and then the continued extrusion of the slag conveyed subsequently will make it cooperate with the external slag discharge elbow to discharge the slag outward, and during the slag discharge process, the end of the slag discharge elbow can also be connected to a power pump to improve the efficiency of slag discharge.

[0031] In any of the above schemes, it is preferred that a cleaning shaft is arranged in the center of the inner cylinder cavity between the three sieve cylinders, the left end of the cleaning shaft is connected to the output shaft of the hydraulic motor, the right end of the cleaning shaft is connected to the sun shaft, and a plurality of hard bristles for cleaning the outer surface of each sieve cylinder are fixedly installed on the outer wall of the cleaning shaft.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The multi-stage feeding transmission structure adopts planetary gear transmission, with the sun gear as the center. The planetary feeding assembly and the outer gear ring work together to evenly distribute the load. Multiple planetary gears share the load. Compared with the single-stage transmission, it can withstand a larger load, reduce the force on a single gear, improve the transmission stability and reliability, ensure smooth power transmission during garbage disposal, and reduce the probability of equipment shutdown due to transmission failure.

[0034] 2. The multi-stage feeding transmission structure integrates the sun gear, planetary feeding assembly and outer gear ring into the smaller space at the right end of the horizontal cylinder, which effectively utilizes the space, makes the entire garbage treatment device more compact, facilitates equipment installation and maintenance, and is conducive to the miniaturization and integrated design of the equipment.

[0035] 3. The planetary feeding assembly drives the garbage screening mechanism to both rotate and revolve. The rotation realizes centrifugal screening, and the revolution realizes material flipping. The combination of the two improves the screening effect and efficiency, and can more effectively separate water, small-diameter materials and large-diameter residues. The planetary feeding assembly is connected one-to-one with the garbage screening mechanism, which can feed accurately, ensuring that different types of kitchen waste accurately enter the corresponding screening mechanism, improving the accuracy and efficiency of feeding, and ensuring the smooth progress of subsequent screening and processing processes.

[0036] 4. Three garbage screening mechanisms are set up. The apertures of the screening holes on the surface of the screen drum are divided into large aperture, medium aperture and small aperture, which can grade and screen the garbage. The large aperture screen drum initially screens large-sized solid matter, reduces the burden of subsequent screen drums and protects the equipment; the medium aperture screen drum further separates medium-sized solid residues; the small aperture screen drum finely screens tiny particles and impurities, and finally obtains relatively clean liquid. The solid residue screened out by the screen drums of different apertures can be classified and processed according to their characteristics, realizing the resource utilization of solid residues and improving the screening accuracy and effect.

[0037] 5. Pressure relief observation tubes with safety valves are installed on both sides of the top of the horizontal cylinder. During equipment operation, when the pressure in the horizontal cylinder exceeds the threshold due to material fermentation or screening operation, the safety valve automatically opens to release pressure to prevent the horizontal cylinder from explosion, rupture and other safety accidents due to excessive pressure, thereby protecting the safety of equipment and personnel. At the same time, it can avoid damage to the equipment such as structural deformation and sealing failure due to long-term overpressure, thereby extending the service life of the equipment. The operator can also observe the pressure through the pressure relief observation tube to determine whether the equipment is operating normally. In an emergency, the safety valve can be used as an emergency pressure relief channel to reduce the degree of harm caused by the accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0039] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0040] Figure 2 It is a schematic diagram of the main structure of the present invention.

[0041] Figure 3 It is a side structural schematic diagram of the present invention.

[0042] Figure 4 It is a three-dimensional structural schematic diagram from the first perspective of the multi-stage feeding transmission structure of the present invention in conjunction with the garbage screening mechanism.

[0043] Figure 5 It is a schematic diagram of the three-dimensional structure from a second perspective of the multi-stage feeding transmission structure of the present invention in combination with the garbage screening mechanism.

[0044] Figure 6 It is a side structural schematic diagram of the multi-stage feeding transmission structure of the present invention.

[0045] Figure 7 for Figure 5 Schematic diagram of the top view structure.

[0046] Figure 8 It is a schematic diagram of the local structure of the present invention.

[0047] Fig. 9 for Figure 8 Schematic diagram showing the partial internal structure.

[0048] Fig.10 for Fig. 9 Schematic diagram of the three-dimensional structure.

[0049] Fig.11 for Fig. 9 Schematic diagram of the side structure.

[0050] In the figure, 1, base frame; 2, positioning seat; 3, horizontal cylinder; 4, garbage screening mechanism; 5, left end cover; 6, hydraulic motor; 7, discharge pipe outlet; 8, outer gear ring; 9, left planetary end cover; 10, sun gear; 11, left end blind pipe discharge channel; 12, right planetary end cover; 13, planetary gear; 14, planetary tube shaft; 15, screen cylinder; 16, cleaning shaft; 17, hard bristles; 18, screen hole; 19, slag discharge elbow; 20, slag discharge control valve; 21, pressure relief observation tube; 22, safety valve; 23, connecting conveying pipe; 24, sealing and fixing plug; 25, discharge joint; 26, discharge funnel pipe; 27, spiral conveying extrusion blade; 28, right end feed blind pipe channel; 29, feed channel; 30, sun shaft. DETAILED DESCRIPTION

[0051] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention. Figure 1-Figure 11 as shown in .

[0052] Embodiment 1: A multi-stage garbage treatment and comprehensive utilization device comprises a base frame 1, positioning seats 2 are symmetrically installed on both sides of the top of the base frame 1, a horizontal cylinder 3 is horizontally arranged between the two positioning seats 2, both ends of the horizontal cylinder 3 pass through the central holes of the positioning seats 2 on their corresponding sides and are relatively fixedly connected, a multi-stage feeding transmission structure is installed on the right end of the horizontal cylinder 3, the bottom of the multi-stage feeding transmission structure is fixed on the top of the base frame 1 through a column, a plurality of garbage screening mechanisms 4 are installed in the inner cylinder cavity of the horizontal cylinder 3, the right end of each of the garbage screening mechanisms 4 is connected to the corresponding end of the multi-stage feeding transmission structure, a slag discharge mechanism connected to the end of the garbage screening mechanism 4 is respectively installed in each through hole of the left end cover 5 of the horizontal cylinder 3, a hydraulic motor 6 is installed in the center of the left end cover 5, and a discharge pipe port 7 with a valve connected to the inner cylinder cavity inside the horizontal cylinder 3 is installed at the central bottom of the horizontal cylinder 3.

[0053] The multi-stage garbage processing and comprehensive utilization device of the present invention fixes the hydraulic motor 6 when working, and outputs a rotational force through the hydraulic motor 6, which drives the multi-stage feeding transmission structure to rotate, thereby driving the various garbage screening mechanisms 4 installed inside the inner cylinder cavity to operate.

[0054] In any of the above schemes, it is preferred that the multi-stage feeding transmission structure includes an outer gear ring 8 fixed on the top of the base frame 1 by a column, a left planetary end cover 9 is fixedly installed on the right end face of the outer gear ring 8, a sun gear 10 coaxial with it is arranged at the inner center of the outer gear ring 8, a rotating planetary feeding assembly is arranged on the periphery of the sun gear 10, and a left planetary end cover 9 and a right planetary end cover 12 movably abutted against it are respectively arranged at the left and right ends of the outer gear ring 8, and the left and right ends of the planetary feeding assembly are movable through the left planetary gears on both sides thereof. The end cover 9 and the corresponding rotating holes on the right planetary end cover 12, the discharge ports at the left end of the planetary feed assembly are respectively connected with the feed ports of the garbage screening mechanism 4 at the corresponding positions, the right end of the sun shaft 30 of the sun gear 10 moves through the center hole of the right planetary end cover 12 and extends to its outside, the left end of the sun shaft 30 moves through the center hole of the left planetary end cover 9 and extends to its left side and is fixedly arranged relative to the output shaft of the hydraulic motor 6, and when the hydraulic motor 6 rotates, it can drive the sun shaft 30 and the sun gear 10 to rotate.

[0055] The multi-stage feed transmission structure adopts a planetary gear transmission structure, with the sun gear 10 as the center, a planetary feed assembly arranged around it, and an outer gear ring 8 constrained on the outside. This structure can evenly distribute the load, and multiple planetary gears share the load. Compared with the single-stage transmission, it can withstand a larger load, reduces the force on a single gear, improves the stability and reliability of the transmission, ensures the smoothness of power transmission during the garbage treatment process, and reduces the probability of equipment shutdown due to transmission failure.

[0056] The multi-stage feeding transmission structure is compact, integrating components such as the sun gear 10, the planetary feeding assembly and the outer ring gear 8 in a relatively small space, effectively utilizing the space at the right end of the horizontal cylinder 3, making the structure of the entire garbage disposal device more compact, and realizing complex transmission and feeding functions in a limited space, which is convenient for the installation and maintenance of the equipment and is also conducive to the miniaturization and integrated design of the equipment.

[0057] Under the action of the sun gear 10 and the outer ring gear 8 , the planetary feed assembly can both rotate on its own and revolve around the output shaft of the hydraulic motor 6 .

[0058] This multi-mode movement mode enables the garbage screening mechanism 4 connected to it to achieve centrifugal screening through rotation and flipping of materials through revolution when working. The two cooperate with each other to greatly improve the screening effect and efficiency, and can more effectively separate water, small-diameter materials and large-diameter slag, thereby improving the quality and efficiency of garbage treatment. After the slag is screened out, it can achieve resource reuse.

[0059] In addition, each outlet at the left end of the planetary feeding assembly is respectively connected to the feed port of the garbage screening mechanism 4 at the corresponding position. This one-to-one connection method can achieve precise feeding, ensuring that different types of preliminarily processed kitchen waste can accurately enter the corresponding garbage screening mechanism 4, thereby improving the accuracy and efficiency of feeding and facilitating the smooth progress of subsequent screening and processing processes.

[0060] In any of the above schemes, it is preferred that the planetary feeding assembly includes a planetary gear 13, the outer side of the planetary gear 13 is meshed with the inner teeth of the outer gear ring 8, and the inner side of the planetary gear 13 is meshed with the sun gear 10. The right end of the planetary tube shaft 14 integrally formed in the center of the planetary gear 13 is movably extended to the right side of the right planetary end cover 12 and is used to realize quick-release connection with the pipeline of the external feeding equipment. The left end of the planetary tube shaft 14 is movably extended to the left side of the left planetary end cover 9 and is connected to the feed port of the garbage screening mechanism 4 at the corresponding position thereof. The interior of the planetary tube shaft 14 is provided with a feed channel 29 arranged throughout its length direction. The left end of the left planetary end cover 9 is movably and sealingly inserted into the right end of the horizontal cylinder 3. The left planetary end cover 9 is used as the left planetary end cover of the horizontal cylinder 3 and has relative sealed rotation with the inner cylinder cavity.

[0061] The planetary feed assembly is a key connecting component between the multi-stage feed transmission structure and the garbage screening mechanism 4. It transmits the power generated by the multi-stage feed transmission structure to the garbage screening mechanism 4, and at the same time connects the external feed equipment with the garbage screening mechanism 4; through its own movement and material conveying and distribution functions, the planetary feed assembly enables the hydraulic motor 6, the multi-stage feed transmission structure, the garbage screening mechanism 4 and other components to work together to form an organic whole, and jointly complete the multi-stage treatment and comprehensive utilization of garbage tasks, ensuring the efficient and stable operation of the entire device.

[0062] In any of the above schemes, it is preferred that the garbage screening mechanism 4 includes a sieve drum 15 arranged inside the inner cylinder cavity of the horizontal drum 3, the right end of the sieve drum 15 is coaxially fixedly connected to the left end of the planetary tube shaft 14 through a feed end cover fixedly mounted thereon, and the feed channel of the planetary tube shaft 14 is connected to the centrifugal screening cavity inside the sieve drum 15, the left end of the sieve drum 15 is connected to the slag discharge mechanism at the corresponding position through a discharge end cover fixedly mounted thereon, and a plurality of sieve holes 18 are arranged on the surface of the sieve drum 15, and the sieve drum 15 realizes rotation and revolution around the sun axis 30 in the process of following the rotation of the planetary tube shaft 14.

[0063] A feed end cover and a discharge end cover are respectively provided at both ends of the screen drum 15. The feed end cover coaxially connects the screen drum 15 with the planetary tube shaft 14, so that the feed channel of the planetary tube shaft 14 is connected with the centrifugal screening cavity of the screen drum 15, ensuring that the material can smoothly enter the screen drum 15; the discharge end cover is connected to the slag discharge mechanism to facilitate the discharge of large-diameter slag after screening.

[0064] The screen drum 15 rotates along with the planetary tube shaft 14, and realizes rotation and revolution around the sun axis driven by the planetary feed assembly.

[0065] During rotation, centrifugal force is used to cause water and small-diameter materials in the garbage to be thrown out into the inner cylinder cavity through the screen holes 18, while large-diameter slag materials remain in the screen cylinder 15; during revolution, the materials are continuously turned over in the screen cylinder 15, thus avoiding material accumulation and improving the uniformity and comprehensiveness of screening. The revolution process causes the materials in the screen cylinder 15 to be continuously turned over, thus avoiding local accumulation of materials in the screen cylinder 15, allowing the garbage to evenly contact the screen holes 18, thus improving the comprehensiveness and uniformity of screening and allowing more water and small-diameter materials to have the opportunity to pass through the screen holes 18, further improving the screening effect.

[0066] In any of the above schemes, it is preferred that the number of the garbage screening mechanisms 4 is three, the aperture diameters of the sieve holes 18 on the surface of the sieve cylinders 15 inside different garbage screening mechanisms 4 are different, the aperture diameters of the sieve holes 18 on the surface of the same sieve cylinder 15 are the same, and the aperture diameters of the sieve holes 18 on the three sieve cylinders 15 are respectively divided into large aperture, medium aperture and small aperture.

[0067] There are three garbage screening mechanisms 4 , and the apertures of the screening holes 18 on the surface of the screening cylinders 15 inside different garbage screening mechanisms 4 are the same or different, and the apertures of the screening holes 18 on the surface of the same screening cylinder 15 are the same.

[0068] The apertures of the sieve holes 18 on the three sieve drums 15 are respectively divided into large aperture, medium aperture and small aperture; the sieve drums 15 corresponding to the sieve holes 18 with different apertures are used to achieve different sieve effects for different garbage.

[0069] When the specifications of the three sieve drums 15 are completely the same, the three sieve drums 15 can be selected to feed materials simultaneously during screening, thereby improving the screening efficiency.

[0070] When the specifications of the three screen drums 15 are exactly the same, the garbage can be screened at the same time.

[0071] This parallel processing method greatly improves the overall screening efficiency.

[0072] For example, when processing a large amount of garbage, the screening task that originally required a long time for a single screen drum 15 to complete can now be completed in a short time by three screen drums 15 of the same specifications working simultaneously, thus meeting the needs of large-scale garbage treatment, and is particularly suitable for places with large amounts of garbage generated, such as large garbage treatment plants, urban garbage transfer stations, etc.

[0073] When the three sieve drums 15 correspond to large aperture, medium aperture and small aperture respectively, the material is fed into the sieve drum 15 with large aperture first, and the screened solid residue is discharged. After the liquid flows out, it is sent back to the device and continues to be screened through the sieve drum 15 with medium aperture, and the solid residue is discharged. After the liquid is discharged, it returns to the device again and enters the sieve drum 15 with small aperture. After the residue material and relatively clean liquid are discharged, subsequent deep treatment such as oil removal and drug addition is carried out.

[0074] The three sieve drums 15 correspond to the large pore size, medium pore size and small pore size respectively: the large pore size sieve drum 15 for preliminary screening as the first screening process can quickly screen out large-sized solid materials in the garbage.

[0075] These large-sized solid residues are usually materials that are difficult to further process or may cause damage to subsequent processing equipment, such as tree branches, plastic bottles, large pieces of metal, etc.

[0076] Discharging them in time can, on the one hand, reduce the processing burden of the subsequent screen drum 15, and on the other hand, protect the normal operation of the subsequent equipment.

[0077] Secondary screening of the medium-aperture sieve cylinder 15: the liquid and smaller particles screened by the large-aperture sieve cylinder 15 enter the medium-aperture sieve cylinder 15.

[0078] The medium-aperture screen drum 15 will further separate medium-sized solid residues, such as smaller plastic fragments, fruit cores, etc.

[0079] Through this stage of screening, the solid matter in the garbage is further refined and separated, making the material entering the small-aperture screen drum 15 purer, ready for subsequent fine screening.

[0080] Fine screening by small-aperture sieve drum 15: The small-aperture sieve drum 15 performs the final fine screening on the materials after the first two stages of screening.

[0081] It can separate tiny particles and impurities, such as fine mud, fiber, etc., and finally obtain relatively clean liquid.

[0082] This method of graded screening can carry out targeted treatment according to the size of garbage particles, improving the accuracy and effect of screening.

[0083] The solid slag screened out by the sieve drums 15 with different apertures has different sizes and can be classified and processed according to their characteristics.

[0084] The large-sized solid slag screened out by the large-aperture sieve drum 15 may be suitable for landfill or incineration; the medium-sized solid slag screened out by the medium-aperture sieve drum 15 may be used as building materials or other industrial raw materials after further processing; the tiny solid slag screened out by the small-aperture sieve drum 15 may also have certain utilization value in certain fields, thereby realizing the resource utilization of solid slag.

[0085] Embodiment 2: In any of the above schemes, it is preferred that the inner end of the left end cover 5 is movably and sealingly inserted into the left end of the horizontal cylinder 3, and the left end cover 5 and the inner cylinder cavity are relatively sealed and rotated; the slag discharge mechanism includes a slag discharge elbow 19 installed on the side wall on the left side of the through hole of the horizontal cylinder 3, the feed port of the slag discharge elbow 19 is arranged opposite to the discharge port of the screen cylinder 15 and the two are directly butted and connected, and a slag discharge control valve 20 is installed on the slag discharge elbow 19, and the right end of the slag discharge elbow 19 extends to the centrifugal sieving cavity of the screen cylinder 15 at the corresponding position; during discharging, the outlet of the slag discharge elbow 19 rotates with the left end cover 5 and moves to the lower position.

[0086] The inner end of the left end cover 5 is movable and sealably inserted inside the left end of the horizontal cylinder 3, thereby achieving relative seal rotation with the inner cylinder cavity.

[0087] On the one hand, the sealing design effectively prevents the materials (including liquid and solid slag) in the inner cavity of the horizontal barrel 3 from leaking out from the left end during the operation of the equipment, ensuring the safety and hygiene of the equipment operation and avoiding pollution to the surrounding environment.

[0088] On the other hand, the relative sealed rotation enables the left end cover 5 to rotate along with the rotation of other components (such as the screen drum 15, etc.) in the horizontal drum 3, without affecting the transmission and operation of the equipment as a whole, thus ensuring the continuity and stability of the equipment operation.

[0089] When the screen drum 15 performs screening work, large-diameter slag materials will gradually move toward the discharge end in the screen drum 15 . When discharge is required, these slag materials can be collected through the slag discharge elbow 19 and discharged out of the equipment.

[0090] The design of the slag discharge elbow 19 makes the discharge path of the slag smoother, reducing the possibility of slag clogging during the discharge process.

[0091] The slag discharge control valve 20 installed on the slag discharge elbow 19 can accurately control the discharge process.

[0092] During discharge, the outlet of the slag discharge elbow 19 rotates with the left end cover 5 and moves to the lower position.

[0093] This design enables the slag discharge mechanism to adapt to the rotation of the screen drum 15. No matter what position the screen drum 15 is in, the slag discharge elbow 19 can maintain effective connection with the centrifugal screening cavity of the screen drum 15 to ensure that the slag can be discharged smoothly.

[0094] At the same time, the design of moving the outlet to a lower position may help utilize gravity to discharge the slag more smoothly, reduce dependence on other power during the discharge process, and improve the efficiency and reliability of the discharge.

[0095] In any of the above schemes, preferably, two pressure relief observation tubes 21 are installed at intervals on both sides of the top of the horizontal cylinder 3, and safety valves 22 are installed on the pressure relief observation tubes 21.

[0096] During the garbage screening process, the pressure in the horizontal cylinder 3 may increase due to various reasons (such as gas generated by material fermentation, internal pressure changes caused by screening operation, etc.).

[0097] When the pressure exceeds a certain threshold, the safety valve 22 will automatically open to release the gas or pressure in the cylinder, preventing the horizontal cylinder 3 from explosion, rupture and other safety accidents due to excessive pressure, thereby protecting the safety of equipment and personnel.

[0098] It can ensure that the pressure in the horizontal cylinder 3 is always within a safe range, avoid damage such as deformation of the equipment structure and seal failure due to long-term overpressure, and extend the service life of the equipment.

[0099] The pressure relief observation tube 21 allows the operator to visually observe the pressure conditions in the horizontal cylinder 3 .

[0100] By observing the pressure changes and gas flow in the pipe, operators can determine whether the equipment is operating normally and whether there are problems such as abnormal pressure increases or fluctuations.

[0101] When a sudden failure or emergency occurs in the equipment, such as fire or explosion, the safety valve 22 on the pressure relief observation tube 21 can be used as an emergency pressure relief channel to quickly release the pressure in the horizontal cylinder 3, reduce the degree of harm caused by the accident, and provide valuable time and conditions for emergency treatment.

[0102] In any of the above solutions, preferably, the left planetary end cover 9 and the right planetary end cover 12 are both formed by separate assembly welding.

[0103] When the planetary tube shaft 14 cooperates with the mounting hole of the left planetary end cover 9 or the mounting hole of the right planetary end cover 12 at its corresponding position, the axial limit constraint is completed by abutting the end face of the shaft shoulder and the hole.

[0104] That is, a shaft shoulder is machined on the planetary tube shaft 14 , and the end face of the shaft shoulder cooperates with the end face of the hole at the corresponding position. When the planetary tube shaft 14 is inserted into the hole, the end face of the shaft shoulder will contact the end face of the hole, thereby limiting the axial movement of the planetary tube shaft 14 .

[0105] The axial limit constraint mode of the shaft shoulder and the end face abutment of the hole can effectively limit the axial movement of the planetary tube shaft 14.

[0106] During the operation of the equipment, the planetary tube shaft 14 will be subjected to various forces, such as axial tension, thrust, etc.

[0107] If there is no effective axial limit, the planetary tube shaft 14 may move axially, causing changes in its matching relationship with other components, affecting the accuracy and stability of the transmission.

[0108] This limiting method ensures that the planetary tube shaft 14 is fixed in the axial position, thereby ensuring the normal operation of the transmission system.

[0109] In any of the above schemes, it is preferred that the two side surfaces of the outer gear ring 8, the two side surfaces of the left planetary end cover 9, and the two side surfaces of the right planetary end cover 12 are polished to form smooth surfaces, and the left planetary end cover 9 and the right planetary end cover 12 are both made of brass.

[0110] The side surfaces of the outer gear ring 8, the left planetary end cover 9 and the right planetary end cover 12 are polished to form smooth surfaces, which can significantly reduce the friction between these components during relative movement.

[0111] In the multi-stage feeding transmission structure, there is frequent contact and relative rotation between these components. The smooth surface can reduce friction resistance, reduce energy loss and improve transmission efficiency.

[0112] At the same time, reducing friction can also reduce wear on the surface of components, extend the service life of components, and reduce the maintenance and replacement costs of equipment.

[0113] In any of the above schemes, it is preferred that a connecting conveying pipe 23 is installed in the centrifugal screening cavity of each of the sieve drums 15, the right end of the connecting conveying pipe 23 is fixedly connected to the planetary tube shaft 14 and rotates with it, and a blocking fixed plug 24 is provided in the middle of the tube cavity of the connecting conveying pipe 23 to divide the tube cavity into a right-end feeding blind pipe channel 28 and a left-end blind pipe discharge channel 11, the right-end feeding blind pipe channel is connected to the feeding channel of the planetary tube shaft 14 and is internally connected, and the connecting conveying pipe 23 corresponding to the right-end feeding blind pipe channel is connected to the planetary tube shaft 14. A plurality of discharge joints 25 connected to the interior are arranged on the upper right outer wall, and a plurality of discharge funnel pipes 26 connected to the interior are arranged on the lower left outer wall of the connecting and conveying pipe 23 corresponding to the left blind pipe discharge channel. The discharge funnel pipe 26 is used to receive the slag at the right end of the centrifugal screening chamber and enter the interior of the slag discharge elbow 19 connected to it through the left blind pipe discharge channel after being continuously squeezed and sent to the left blind pipe discharge channel. The left end of the connecting and conveying pipe 23 is movably inserted in the through hole of the left end cover 5.

[0114] A spiral conveying and squeezing blade 27 arranged along its axial direction is fixedly provided on the outer side wall of the connecting conveying pipe 23, and the outer side of the spiral conveying and squeezing blade 27 is in contact with the inner cavity of the centrifugal screening chamber. When the connecting conveying pipe 23 rotates following the planetary tube shaft 14, it can drive the spiral conveying and squeezing blade 27 to continuously squeeze and convey the slag left after the internal centrifugal screening to the left and continue to remove moisture; when revolving, the slag inside the centrifugal screening chamber is continuously tumbled to avoid the accumulation of slag and make the slag continuously enter the discharge funnel pipe 26 when tumbling, and then the continued squeezing of the slag conveyed subsequently will make it cooperate with the external slag discharge elbow 19 to discharge slag outward, and during the slag discharge process, the end of the slag discharge elbow 19 can also be connected to a power pump to improve the efficiency of slag discharge.

[0115] In any of the above schemes, it is preferred that a cleaning shaft 16 is arranged in the center of the inner cylinder cavity between the three sieve cylinders 15, the left end of the cleaning shaft 16 is connected to the output shaft of the hydraulic motor 6, the right end of the cleaning shaft 16 is connected to the sun shaft, and a plurality of hard bristles 17 for cleaning the outer surface of each sieve cylinder 15 are fixedly installed on the outer wall of the cleaning shaft 16.

[0116] During the garbage screening process, water and small-diameter materials are thrown out into the inner cylinder cavity through the screen holes 18 on the surface of the screen drum 15. However, some small-diameter materials may adhere to the outer surface of the screen drum 15. As time goes by, these attached materials may gradually accumulate, causing the screen holes 18 to be blocked. The hard bristles 17 on the cleaning shaft 16 can continuously clean the outer surface of the screen drum 15 during the operation of the equipment, brush off the attached materials, and keep the screen holes 18 unobstructed, thereby ensuring that the screening process can be carried out continuously and efficiently, and maintaining the stable operation of the garbage disposal device.

[0117] The cleanliness of the outer surface of the sieve drum 15 directly affects the efficiency and effect of sieving. When the outer surface of the sieve drum 15 is clean, water and small-diameter materials can pass through the sieve holes 18 more smoothly, reducing the resistance of the materials passing through the sieve holes and increasing the sieving speed. At the same time, the clean surface of the sieve drum 15 can ensure the effective filtration area of ​​the sieve holes 18, making the sieving more accurate, and can more effectively separate materials of different particle sizes, thereby improving the quality of garbage disposal.

[0118] The left end of the cleaning shaft 16 is connected to the output shaft of the hydraulic motor 6, and the right end is connected to the sun shaft, so that the cleaning shaft 16 can operate synchronously with the multi-stage feeding transmission structure and the garbage screening mechanism 4. While the multi-stage feeding transmission structure drives the screen drum 15 to rotate and revolve, the cleaning shaft 16 also rotates, and the hard bristles 17 can clean the outer surface of the screen drum 15 in time. This collaborative working mode ensures that the various components of the entire garbage disposal device cooperate with each other, improving the overall performance and reliability of the equipment.

[0119] Specifically, the right end of the connecting and conveying pipe 23 is fixedly connected to the planetary tube shaft 14 and rotates with it, and the right end of the feeding blind pipe channel is connected to the feeding channel of the planetary tube shaft 14 and is internally communicated.

[0120] This allows the garbage material transported by the planetary tube shaft 14 to smoothly enter the right end feed blind pipe channel connected to the conveying pipe 23, providing a material input channel for subsequent screening and processing, and ensuring the continuity of the garbage processing process.

[0121] The discharge connector 25 can accurately distribute the material entering the right-end feed blind pipe channel into the centrifugal screening cavity of the screen drum 15, so that the material can be evenly distributed in the screen drum 15, providing good conditions for subsequent centrifugal screening and helping to improve the screening effect and efficiency.

[0122] After the screen drum 15 is centrifugally screened, the large-diameter slag will move to the left end of the screen drum 15 under the action of centrifugal force and its own gravity. The discharge funnel 26 can effectively collect the slag, providing a collection channel for the discharge of the slag.

[0123] When the connecting conveying pipe 23 rotates along with the planetary pipe shaft 14, the spiral conveying extrusion blades 27 can drive the slag material left after the internal centrifugal screening to be continuously extruded and conveyed to the left.

[0124] This extrusion conveying can not only convey the slag from the discharge funnel pipe 26 to the left-end blind pipe discharge channel, but also continue to remove moisture from the slag during the conveying process, thereby increasing the dryness of the slag and facilitating subsequent processing and discharge.

[0125] When the connecting conveying pipe 23 revolves, the slag inside the centrifugal screening chamber can be continuously tumbled to avoid the accumulation of slag.

[0126] The tumbling slag will continuously enter the discharge funnel pipe 26, and then continue to be squeezed by the slag delivered later, so that it cooperates with the external slag discharge elbow 19 to discharge the slag outward.

[0127] This design enables the slag to be fully processed and transported in the screen drum 15, ensuring smooth slag discharge.

[0128] In addition, during the slag discharge process, the end of the slag discharge elbow 19 can be connected to a power pump to improve the efficiency of slag discharge, further ensuring the smooth progress of the slag discharge work.

[0129] The spiral conveying and squeezing blades 27 cause the slag inside the centrifugal screening chamber to tumble continuously when the connected conveying pipe 23 revolves, which not only avoids the accumulation of slag, but also enables the slag to more fully contact the screening holes 18 on the surface of the screen drum 15 during the tumbling process, thereby improving the screening effect.

[0130] At the same time, the tumbling of the slag also helps to release small particles and moisture wrapped in large particles of slag, further improving the efficiency and quality of screening.

[0131] The squeezing and conveying process of the slag by the spiral conveying and squeezing blades 27 can further remove moisture from the slag.

[0132] Through this mechanical extrusion method, the moisture in the slag is squeezed out, which improves the dryness of the slag, is beneficial to the subsequent slag processing and comprehensive utilization, and also reduces the difficulty and cost of moisture treatment in the subsequent processing links.

[0133] Specific working principle: This device adopts an intermittent feeding method. When feeding is needed, the multi-stage feeding transmission structure is controlled to stop. At this time, each feeding port of the multi-stage feeding transmission structure is quickly connected with an external pump pipeline, and the corresponding category of kitchen waste after preliminary removal of large objects is pumped into the corresponding garbage screening mechanism 4. After the feeding is completed, the multi-stage feeding transmission structure is controlled to operate. During the operation of the multi-stage feeding transmission structure, it can simultaneously drive each garbage screening mechanism 4 to perform high-speed centrifugal rotation and revolution around the output shaft of the hydraulic motor 6, realize centrifugal screening during the rotation, and realize material flipping during the revolution. The two cooperate to effectively improve the screening effect and efficiency. Water and small-diameter materials are thrown out into the inner cylinder cavity, and large-diameter slag materials are accumulated in the corresponding garbage screening mechanism 4 and continuously transported to the outlet end. Finally, after being transported to the outlet section, they are discharged out by the corresponding slag discharge mechanism to realize resource recycling.

[0134] The garbage screening mechanism 4 is installed in the inner cylinder cavity of the horizontal cylinder 3 and is a key component for realizing garbage screening.

[0135] Driven by the multi-stage feeding transmission structure, it performs high-speed centrifugal rotation and revolution around the output shaft of the hydraulic motor 6.

[0136] The rotation realizes centrifugal screening, and uses centrifugal force to throw water and small-diameter materials into the inner cylinder cavity; the revolution realizes the flipping of materials, so that the garbage fully contacts the screening components, improving the screening effect and efficiency.

[0137] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. For those skilled in the art, any replacement improvements or changes made to the implementation methods of the present invention fall within the protection scope of the present invention.

[0138] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A garbage multi-stage treatment and comprehensive utilization device, comprising a base frame, and positioning seats are symmetrically installed on both sides of the top of the base frame, characterized in that: A horizontal cylinder is horizontally arranged between the two positioning seats, and both ends of the horizontal cylinder pass through the central holes of the positioning seats on their corresponding sides and are relatively fixedly connected. A multi-stage feeding transmission structure is installed at the right end of the horizontal cylinder, and the bottom of the multi-stage feeding transmission structure is fixed above the base frame through a column. A plurality of garbage screening mechanisms are installed in the inner cylinder cavity of the horizontal cylinder, and the right end of each of the garbage screening mechanisms is connected to the corresponding end of the multi-stage feeding transmission structure. A slag discharge mechanism connected to the end of the garbage screening mechanism is respectively installed in each through hole of the left end cover of the horizontal cylinder, a hydraulic motor is installed in the center of the left end cover, and a discharge pipe outlet with a valve connected to the inner cylinder cavity inside the horizontal cylinder is installed at the central bottom of the horizontal cylinder.

2. The garbage multi-stage treatment and comprehensive utilization device according to claim 1 is characterized in that: The multi-stage feeding transmission structure includes an outer gear ring fixed on the upper part of the base frame by a column, a left planetary end cover is fixedly installed on the right end surface of the outer gear ring, a sun gear coaxial with the outer gear ring is arranged at the inner center of the outer gear ring, a rotating planetary feeding assembly is arranged on the periphery of the sun gear, and a left planetary end cover and a right planetary end cover movably abutting against the outer gear ring are respectively arranged at the left and right ends of the outer gear ring, and the left and right ends of the planetary feeding assembly are movable through the corresponding rotating holes on the left and right planetary end covers on both sides thereof, and each discharge port at the left end of the planetary feeding assembly is respectively connected with the feed port of the garbage screening mechanism at the corresponding position, the right end of the sun shaft of the sun gear is movable through the center hole of the right planetary end cover and extends to its outside, and the left end of the sun shaft is movable through the center hole of the left planetary end cover and extends to its left side, and then is fixedly arranged relatively to the output shaft of the hydraulic motor, so that the sun shaft and the sun gear can be driven to rotate when the hydraulic motor rotates.

3. The garbage multi-stage treatment and comprehensive utilization device according to claim 2 is characterized in that: The planetary feeding assembly includes a planetary gear, the outer side of the planetary gear is meshed with the inner teeth of the outer gear ring, and the inner side of the planetary gear is meshed with the sun gear. The right end of the planetary tube shaft integrally formed at the center of the planetary gear is movably extended to the right side of the right planetary end cover and is used to realize quick-release connection with the pipeline of the external feeding equipment. The left end of the planetary tube shaft is movably extended to the left side of the left planetary end cover and is connected to the feed port of the garbage screening mechanism at the corresponding position thereof. The interior of the planetary tube shaft is provided with a feed channel arranged throughout its length direction. The left end of the left planetary end cover is movably and sealingly inserted into the right end of the horizontal cylinder. The left planetary end cover is used as the left planetary end cover of the horizontal cylinder and rotates relatively sealed with the inner cylinder cavity.

4. The garbage multi-stage treatment and comprehensive utilization device according to claim 3 is characterized in that: The garbage screening mechanism includes a screen drum arranged inside the inner cylinder cavity of the horizontal cylinder, the right end of the screen drum is coaxially connected to the left end of the planetary tube shaft through a feed end cover fixedly mounted thereon, and the feed channel of the planetary tube shaft is communicated with the centrifugal screening cavity inside the screen drum, the left end of the screen drum is connected to the slag discharge mechanism at the corresponding position through a discharge end cover fixedly mounted thereon, a plurality of screening holes are arranged on the surface of the screen drum, and the screen drum realizes rotation and revolution around the sun axis in the process of following the rotation of the planetary tube shaft.

5. The garbage multi-stage treatment and comprehensive utilization device according to claim 4 is characterized in that: The number of the garbage screening mechanisms is three, and the apertures of the screening holes on the surface of the same screen cylinder are the same.

6. The garbage multi-stage treatment and comprehensive utilization device according to claim 5 is characterized in that: The inner end of the left end cover is movable and sealed and inserted inside the left end of the horizontal cylinder, and the left end cover and the inner cylinder cavity are relatively sealed and rotated; The slag discharge mechanism includes a slag discharge elbow installed on the side wall on the left side of the through hole of the horizontal cylinder, the feed port of the slag discharge elbow is arranged opposite to the discharge port of the screen cylinder and the two are directly butted against each other, a slag discharge control valve is installed on the slag discharge elbow, and the right end of the slag discharge elbow extends to the inside of the centrifugal screening cavity of the screen cylinder at the corresponding position; during discharging, the outlet of the slag discharge elbow rotates with the left end cover and moves to the lower position.

7. The garbage multi-stage treatment and comprehensive utilization device according to claim 6 is characterized in that: Two pressure relief observation tubes are installed at intervals on both sides of the top of the horizontal cylinder, and safety valves are installed on the pressure relief observation tubes.

8. The garbage multi-stage treatment and comprehensive utilization device according to claim 7 is characterized in that: The left planetary end cover and the right planetary end cover are both formed by welding in a split assembly welding manner.

9. The garbage multi-stage treatment and comprehensive utilization device according to claim 8 is characterized in that: Both side surfaces of the outer gear ring, both side surfaces of the left planetary end cover, and both side surfaces of the right planetary end cover are polished to form smooth surfaces, and both the left planetary end cover and the right planetary end cover are made of brass.

10. The garbage multi-stage treatment and comprehensive utilization device according to claim 9, characterized in that: A cleaning shaft is arranged in the center of the inner cylinder cavity between the three sieve cylinders, the left end of the cleaning shaft is connected to the output shaft of the hydraulic motor, the right end of the cleaning shaft is connected to the sun shaft, and a plurality of hard bristles for cleaning the outer surface of each sieve cylinder are fixedly installed on the outer wall of the cleaning shaft.

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