A low-temperature drying carbon extraction and granulation system for household garbage and a granulation method thereof

Abstract

The application discloses a kind of low-temperature dry carbon refining granulation system of domestic waste and its granulation method, it is related to domestic waste carbon refining granulation technical field, including coarse crusher, cleaning mechanism, transport mechanism, fine crusher, drying assembly, low-temperature carbonization mechanism and granulation assembly, transport mechanism is set between coarse crusher and fine crusher and between fine crusher and low-temperature carbonization mechanism, the top of transport mechanism between coarse crusher and fine crusher is provided with cleaning mechanism, the top of transport mechanism between fine crusher and low-temperature carbonization mechanism is provided with drying assembly, the side of drying assembly is installed with low-temperature carbonization mechanism, the side of low-temperature carbonization mechanism is provided with granulation assembly. Through low-temperature carbonization mechanism, domestic waste organic matter is turned over, so that domestic waste organic matter is evenly heated, so as to be low-temperature carbonized, and heat-conducting copper pipe is installed in low-temperature carbonization mechanism, the inner cavity of shell is heat-insulated, so that domestic waste organic matter is evenly heated.

Description

Technical Field

[0001] This invention relates to the field of carbon extraction and granulation technology for municipal solid waste, specifically to a low-temperature drying carbon extraction and granulation system for municipal solid waste and its granulation method. Background Technology

[0002] Low-temperature drying carbon extraction and granulation of municipal solid waste is a technology that decomposes municipal solid waste and extracts useful carbon compounds from it. It is a process in which organic compounds decompose large molecules into smaller molecules through high-temperature thermochemical reactions under anaerobic or hypoxic conditions, and then extract various reusable carbon particles.

[0003] In existing technologies, most low-temperature carbonization processes use furnaces or cylinders to carbonize and granulate waste. The process typically involves placing the waste into the inner cavity of the device for low-temperature carbonization. The waste is usually stacked within the device, meaning the outer layers are carbonized first, followed by the inner layers. This process is not conducive to uniform heating of the waste, and the waste cannot be turned or stirred during low-temperature carbonization, further hindering uniform heating and achieving the desired low-temperature carbonization. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a low-temperature drying carbon extraction and granulation system for municipal solid waste and its granulation method, which solves the problems mentioned in the background technology that are not conducive to low-temperature carbonization and uniform heating of waste.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-temperature drying carbon extraction and granulation system for municipal solid waste and its granulation method, comprising a coarse crusher, a washing mechanism, a conveying mechanism, a fine crusher, a drying component, a low-temperature carbonization mechanism, and a granulation component. Conveying mechanisms are provided between the coarse and fine crushers and between the fine crusher and the low-temperature carbonization mechanism. A washing mechanism is located above the conveying mechanism between the coarse and fine crushers. A drying component is located above the conveying mechanism between the fine crusher and the low-temperature carbonization mechanism. The low-temperature carbonization mechanism is installed on the side of the drying component away from the fine crusher. The granulation component is located on the side of the low-temperature carbonization mechanism away from the drying component. The structure includes a shell and a feed inlet. The feed inlet is installed on the upper end face of the shell. A first conveying mechanism is arranged above the inner cavity of the shell, and a heat insulation plate is arranged below the first conveying mechanism. A push rod is installed on one side of the upper end face of the heat insulation plate. A second conveying mechanism is arranged below the heat insulation plate, and there are four sets of the second conveying mechanism. A first combustion port is arranged between the four sets of the second conveying mechanism. A heat-conducting copper pipe is installed on the inner side of the second conveying mechanism. An oil-gas separator is arranged on the side wall of the shell, and a vacuum pump is arranged below the oil-gas separator. An air inlet is arranged on the side of the shell away from the oil-gas separator, and an air outlet is arranged below the air inlet. A discharge port is arranged on the bottom end face of the shell, and a first collection box is arranged below the discharge port.

[0006] Optionally, the first conveying mechanism includes a servo motor and a first gear. The first gear is installed on the output shaft of the servo motor. The first gear is meshed with a first toothed chain, and a second gear is meshed with the inner side of the first toothed chain. The second gear is installed at one end of a friction roller, and the friction roller is frictionally driven to connect a steel mesh conveyor belt. A limit plate is provided on the outer diameter surface of the steel mesh conveyor belt. The first conveying mechanism and the second conveying mechanism have the same structure. The transport mechanism has the same structure as the first conveying mechanism, and the transport mechanism is placed at an angle. A protective cover is installed on the outer surface of the transport mechanism, and a water outlet is provided at the lowest point of the inner cavity of the protective cover.

[0007] Optionally, the cleaning mechanism includes a first housing and a high-pressure water spray head. The first housing is installed above the conveying mechanism between the coarse crusher and the fine crusher. The high-pressure water spray head is installed in the inner cavity of the first housing, and the high-pressure water spray head is connected to a water pump through a water pipe. The water pump is connected to a water tank through a water pipe. The inner cavity of the first housing has a drive motor, and a fan blade is provided at the output shaft of the drive motor. A ventilation opening is provided through the first housing on the side near the drive motor.

[0008] Optionally, the drying assembly includes a second outer shell and a second combustion port. The second outer shell is installed above the conveying mechanism between the fine crusher and the low-temperature carbonization mechanism, and the inner cavity of the second outer shell is provided with the second combustion port.

[0009] Optionally, the pelletizing assembly includes an extruder and a cooling water tank. The extruder is installed on one side of the low-temperature carbonization mechanism, and a cooling water tank is provided on one side of the extruder. A dryer is provided on the side of the cooling water tank away from the extruder, and a pelletizer is provided on the side of the dryer away from the cooling water tank. A second collection box is provided at the discharge end of the pelletizer.

[0010] Optionally, the four sets of the second conveying mechanism are staggered. The first gear and the second gear form a gear transmission structure through the first tooth chain. The friction roller and the steel mesh conveyor belt form a friction transmission structure. The upper end face of the heat insulation plate is longitudinally provided with a through hole. The feed port forms a communication structure through the shell, the through hole and the discharge port. The high-pressure water spray head forms a communication structure with the water tank through the water pump and the water pipe. The entry ends of the extruder, the cooling water tank and the pelletizer are on the same horizontal line.

[0011] Optionally, the granulation method is as follows:

[0012] a) First, the organic waste is fed into the coarse crusher for crushing. Then, the crushed organic waste is transported to the fine crusher via a transport mechanism. During transport, the crushed organic waste is washed by a washing mechanism. A water pump drives water from the water tank through a water pipe and sprays it from a high-pressure water nozzle to wash the organic waste. After washing, the fan blades are rotated by a drive motor to air dry the washed organic waste before it is transported to the fine crusher for further crushing. The finely crushed organic waste is then transported to the low-temperature carbonization mechanism via a transport mechanism. During transport, the organic waste is dried through the second combustion port in the drying component so that it can be carbonized by the low-temperature carbonization mechanism. Excess water is discharged through the outlet during transport.

[0013] b) After drying, the organic waste enters the inner cavity of the shell through the feed inlet. The organic waste first falls onto the first conveying mechanism. The servo motor is activated, driving the first gear to rotate, which in turn drives the second gear through the first gear chain, causing the friction roller to rotate. Since the friction roller and the steel mesh conveyor belt form a friction transmission structure, the steel mesh conveyor belt moves. A limit plate is installed on the outer diameter surface of the steel mesh conveyor belt to limit the movement of the organic waste, thus transporting it to the through-holes on the heat insulation plate, where it falls onto the second conveying mechanism. During this transport, the organic waste undergoes low-temperature carbonization through the first combustion port, and heat is stored in the heat-conducting copper pipes for insulation. It can also make the temperature inside the shell uniform, and when carbonizing organic matter from municipal solid waste at low temperature, the air pump keeps the inside of the shell in an oxygen-deficient or low-oxygen environment. The flue gas is discharged and treated through an oil-gas separator so that combustible gas can be used to facilitate the drying of organic matter from municipal solid waste. The gas inside the shell is controlled at all times through the air inlet and outlet. The pusher rod pushes the organic matter from municipal solid waste that falls on the heat insulation plate to the through hole to avoid leakage during carbonization. Because the four sets of second conveying mechanisms are arranged in an alternating manner, and the transmission direction of the second conveying mechanisms is right, left, right and left from top to bottom, the organic matter from municipal solid waste can also be turned over, so that the organic matter from municipal solid waste is carbonized more fully. Finally, the carbonized organic matter from municipal solid waste falls into the first collection box through the discharge port for centralized collection for subsequent granulation.

[0014] c) The carbonized organic waste collected in the first collection bin is fed into an extruder. The extruder compresses the carbonized organic waste into long strips of solid plastic. The extruded strips of solid plastic are then cooled in a cooling water tank and dried using a dryer. After drying, the strips of solid plastic are fed into a pelletizer and pelletized. Finally, the plastic pellets are collected in the second collection bin, thus completing the entire pelletizing process.

[0015] This invention provides a low-temperature drying carbon extraction and granulation system and granulation method for municipal solid waste, which has the following beneficial effects: The low-temperature drying carbon extraction and granulation system and granulation method for municipal solid waste achieves the turning of organic matter in municipal solid waste through a low-temperature carbonization mechanism, thereby making the organic matter in municipal solid waste heat evenly so as to carry out low-temperature carbonization. In addition, a heat-conducting copper pipe is installed in the low-temperature carbonization mechanism to keep the inner cavity of the shell warm, and at the same time, it can also make the organic matter in municipal solid waste heat evenly.

[0016] The low-temperature drying carbonization and granulation system and its granulation method for municipal solid waste first feeds the organic matter of municipal solid waste into a coarse crusher for coarse crushing. Then, the coarsely crushed organic matter is transported to a fine crusher by a transport mechanism. During the transport process, a washing mechanism washes the crushed organic matter. A water pump drives water from a water tank through a water pipe and sprays water from a high-pressure water nozzle to wash the organic matter. After washing, a drive motor drives a fan to rotate and air-dry the washed organic matter so that it can be transported to the fine crusher for fine crushing. The finely crushed organic matter is then transported to a low-temperature carbonization mechanism by a transport mechanism. During the transport process, the organic matter is dried using a second combustion port in the drying component so that it can be carbonized by the low-temperature carbonization mechanism. During the above transport process, excess water is discharged through the outlet.

[0017] In this low-temperature drying carbonization and granulation system for municipal solid waste and its granulation method, the dried organic matter from the municipal solid waste enters the inner cavity of the shell through the feed inlet. The organic matter first falls onto the first conveying mechanism. The servo motor is activated, driving the first gear to rotate, which in turn drives the second gear through the first gear chain, causing the friction roller to rotate. Since the friction roller and the steel mesh conveyor belt form a friction transmission structure, the steel mesh conveyor belt moves. A limit plate is installed on the outer diameter surface of the steel mesh conveyor belt to limit the movement of the organic matter. The organic matter is transported to the through-hole on the heat insulation plate, where it falls onto the second conveying mechanism. During the transportation process, the organic matter undergoes low-temperature carbonization using the first combustion port, and heat is stored through heat-conducting copper pipes. This system not only provides insulation but also ensures uniform temperature within the shell's interior. During the low-temperature carbonization of organic waste, an air pump maintains an oxygen-deficient or low-oxygen environment within the shell. The flue gas is discharged and treated via an oil-gas separator, allowing for the passage of combustible gas to facilitate the drying of the organic waste. The process utilizes the air inlet and outlet to continuously control the gas flow within the shell's interior. A pusher rod pushes the organic waste falling onto the insulation plate to the through-holes, preventing carbonization leakage. Furthermore, the staggered arrangement of four sets of second conveying mechanisms, with their transmission directions from top to bottom (right, left, right, left), allows for the agitation of the organic waste, resulting in more thorough carbonization. Finally, the carbonized organic waste falls into the first collection box through the outlet for centralized collection and subsequent granulation.

[0018] The low-temperature drying carbon extraction and granulation system and its granulation method for municipal solid waste involves feeding the carbonized organic matter collected in the first collection bin into an extruder. The extruder compresses the carbonized organic matter into long strips of solid plastic. The extruded strips of solid plastic are then cooled in a cooling water tank and dried by an air dryer. After drying, the strips of solid plastic are fed into a pelletizer and pelletized. Finally, the plastic pellets are collected in a second collection bin, thus completing the entire granulation process. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a front view schematic diagram of the cleaning mechanism of the present invention;

[0021] Figure 3 This is a front view schematic diagram of the drying component of the present invention;

[0022] Figure 4 This is a front view schematic diagram of the low-temperature carbonization mechanism of the present invention;

[0023] Figure 5 This is a front view structural schematic diagram of the first material conveying mechanism of the present invention;

[0024] Figure 6 This is a front view structural diagram of the granulation component of the present invention.

[0025] In the diagram: 1. Coarse crusher; 2. Cleaning mechanism; 201. First outer shell; 202. High-pressure water spray head; 203. Water pump; 204. Water tank; 205. Drive motor; 206. Fan blade; 207. Ventilation port; 3. Conveying mechanism; 4. Fine crusher; 5. Drying assembly; 501. Second outer shell; 502. Second combustion port; 6. Low-temperature carbonization mechanism; 601. Shell; 602. Feed inlet; 603. First conveying mechanism; 6031. Servo motor; 6032. First gear; 6033. First gear chain; 6034. Second gear; 60 35. Friction roller; 6036. Steel mesh conveyor belt; 6037. Limiting plate; 604. Heat insulation plate; 605. Push rod; 606. Second conveying mechanism; 607. First combustion port; 608. Heat-conducting copper pipe; 609. Oil-gas separator; 6010. Air pump; 6011. Air inlet; 6012. Air outlet; 6013. Discharge port; 6014. First collection box; 7. Granulation assembly; 701. Extruder; 702. Cooling water tank; 703. Air dryer; 704. Pelletizer; 705. Second collection box; 8. Protective cover; 9. Water outlet. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and 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," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Please see Figures 1 to 6This invention provides a technical solution: a low-temperature drying carbon extraction and granulation system for municipal solid waste and its granulation method, comprising a coarse crusher 1, a washing mechanism 2, a conveying mechanism 3, a fine crusher 4, a drying component 5, a low-temperature carbonization mechanism 6, and a granulation component 7. A conveying mechanism 3 is provided between the coarse crusher 1 and the fine crusher 4, and between the fine crusher 4 and the low-temperature carbonization mechanism 6. A washing mechanism 2 is located above the conveying mechanism 3 between the coarse crusher 1 and the fine crusher 4. A drying component 5 is located above the conveying mechanism 3 between the fine crusher 4 and the low-temperature carbonization mechanism 6. The low-temperature carbonization mechanism 6 is installed on the side of the drying component 5 away from the fine crusher 4. The granulation component 7 is located on the side of the low-temperature carbonization mechanism 6 away from the drying component 5. The low-temperature carbonization mechanism 6 includes a shell 601 and a feed inlet 602. The feed inlet 602 is installed on the upper end face of the shell 601. A first conveying mechanism 603 is located above the inner cavity of the shell 601. A heat insulation plate 604 is provided below the mechanism 603. A pusher rod 605 is installed on one side of the upper surface of the heat insulation plate 604. A second conveying mechanism 606 is provided below the heat insulation plate 604, and four sets of the second conveying mechanism 606 are provided. A first combustion port 607 is provided between the four sets of second conveying mechanisms 606. A heat-conducting copper pipe 608 is installed on the inner side of the second conveying mechanism 606. An oil-gas separator 609 is provided on the side wall of the shell 601. The oil-gas separator 609 is specifically... It is a separator with model number CQY-200-SSY-01 or other separator with separation function, and an air pump 6010 is provided below the oil-gas separator 609. An air inlet 6011 is provided on the side of the housing 601 away from the oil-gas separator 609, and an air outlet 6012 is provided below the air inlet 6011. A discharge outlet 6013 is provided on the bottom end face of the housing 601, and a first collection box 6014 is provided below the discharge outlet 6013.

[0030] The dried organic waste enters the inner cavity of the housing 601 through the feed inlet 602. The organic waste first falls onto the first conveying mechanism 603. The servo motor 6031 is then activated, driving the first gear 6032 to rotate. The first gear chain 6033 drives the second gear 6034 to rotate, causing the friction roller 6035 to rotate. Since the friction roller 6035 and the steel mesh conveyor belt 6036 form a friction transmission structure, the steel mesh conveyor belt 6036 moves. A limit plate 6037 is installed on the outer diameter surface of the steel mesh conveyor belt 6036 to limit the movement of the organic waste, thus transporting the organic waste. The organic waste is transported to the through holes on the heat insulation plate 604 so that it falls onto the second conveying mechanism 606. During the transportation process, the organic waste is carbonized at low temperature. The organic waste is carbonized at low temperature using the first combustion port 607, and heat is stored through the heat-conducting copper pipe 608. This not only keeps the temperature of the organic waste in the shell 601, but also makes the temperature of the shell 601 uniform. During the low-temperature carbonization of the organic waste, the air pump 6010 is used to keep the shell 601 in an oxygen-deficient or low-oxygen environment. The flue gas is discharged and treated by the oil-gas separator 609 so that combustible gas can be used to facilitate the drying of the organic waste.

[0031] The process utilizes the air inlet 6011 and the air outlet 6012 to continuously control the gas inside the shell 601. The push rod 605 pushes the organic waste falling on the heat insulation plate 604 to the through hole to prevent carbonization leakage. Furthermore, since the four sets of second conveying mechanisms 606 are arranged in an alternating manner, and the transmission directions of the second conveying mechanisms 606 are right, left, right, and left respectively from top to bottom, the organic waste can also be turned over, thereby making the carbonization of the organic waste more complete. Finally, the carbonized organic waste falls into the first collection box 6014 through the discharge port 6013 for centralized collection, so as to facilitate subsequent granulation.

[0032] The first conveying mechanism 603 includes a servo motor 6031 and a first gear 6032. The first gear 6032 is installed on the output shaft of the servo motor 6031. The first gear 6032 is meshed with a first toothed chain 6033, and the inner side of the first toothed chain 6033 is meshed with a second gear 6034. The second gear 6034 is installed at one end of a friction roller 6035, and the friction roller 6035 is frictionally driven to a steel mesh conveyor belt 6036. A limit plate 6037 is provided on the outer diameter surface of the steel mesh conveyor belt 6036. The first conveying mechanism 603 and the second conveying mechanism 606 are connected. The conveying mechanism 3 has the same structure as the first conveying mechanism 603, and the conveying mechanism 3 is placed at an angle. The outer surface of the conveying mechanism 3 is covered with a protective cover 8. The lowest end of the inner cavity of the protective cover 8 is provided with a water outlet 9. The cleaning mechanism 2 includes a first outer shell 201 and a high-pressure water spray head 202. The first outer shell 201 is installed above the conveying mechanism 3 between the coarse crusher 1 and the fine crusher 4. The coarse crusher 1 and the fine crusher 4 are specifically a double toothed roller shredder 1000 or other crushers with crushing function, and are divided into coarse crushing and fine crushing according to the distance between the shredding rollers.

[0033] The inner cavity of the first outer shell 201 is equipped with a high-pressure water spray head 202, and the high-pressure water spray head 202 is connected to a water pump 203 through a water pipe. The water pump 203 is connected to a water tank 204 through a water pipe. The inner cavity of the first outer shell 201 contains a drive motor 205, and a fan blade 206 is provided at the output shaft of the output end of the drive motor 205. A ventilation port 207 is provided through the first outer shell 201 on the side near the drive motor 205. The drying assembly 5 includes a second outer shell 501 and a second combustion port 502. The second outer shell 501 is installed above the conveying mechanism 3 between the fine crusher 4 and the low-temperature carbonization mechanism 6. The inner cavity of the second outer shell 501 is provided with the second combustion port 502. The pelletizing assembly 7 includes an extruder 701 and a cooling water tank 702. The extruder 701 is installed on one side of the low-temperature carbonization mechanism 6. Specifically, the extruder 701 is a type 200 extrusion device or other extrusion device with extrusion function. A cooling water tank 702 is provided on one side of the extruder 701. A dryer 703 is provided on the side of the cooling water tank 702 away from the extruder 701. A pelletizer 704 is provided on the side of the dryer 703 away from the cooling water tank 702. Specifically, the pelletizer 704 is a type 150 pelletizer or other pelletizer with pelletizing function. A second collection box 705 is provided at the discharge end of the pelletizer 704.

[0034] The process involves feeding organic waste into a coarse crusher 1 for crushing, followed by transporting the crushed organic waste through a conveyor 3 to a fine crusher 4. During transport, a washing mechanism 2 washes the crushed organic waste. A water pump 203 uses a water pipe to drive water from a water tank 204 through a high-pressure spray nozzle 202 to wash the organic waste. After washing, a drive motor 205 drives a fan blade 206 to dry the washed organic waste before transporting it to the fine crusher 4 for further crushing. Finally, the finely crushed organic waste is transported by the conveyor 3 to a low-temperature carbonization mechanism 6. In the process, the organic matter of domestic waste is dried by the second combustion port 502 in the drying component 5, so that the low-temperature carbonization mechanism 6 can carbonize the organic matter of domestic waste. During transportation, excess water is discharged through the outlet 9. The carbonized organic matter of domestic waste collected by the first collection box 6014 is put into the extruder 701. The extruder 701 extrudes the carbonized organic matter of domestic waste into long strips of solid plastic. The extruded long strips of solid plastic are then cooled by the cooling water tank 702, and then dried by the air dryer 703. After drying, the long strips of solid plastic are put into the pelletizer 704, which cuts the long strips of solid plastic into pellets. Finally, the second collection box 705 is used to collect the plastic pellets, thus completing the entire pelletizing process.

[0035] Four sets of second conveying mechanisms 606 are staggered. The first gear 6032 and the second gear 6034 form a gear transmission structure through the first tooth chain 6033. The friction roller 6035 and the steel mesh conveyor belt 6036 form a friction transmission structure. The upper end face of the heat insulation plate 604 is longitudinally provided with a through hole. The feed port 602 forms a communication structure through the housing 601, the through hole and the discharge port 6013. The high-pressure water spray head 202 forms a communication structure with the water tank 204 through the water pump 203 and the water pipe. The entry ends of the extruder 701, the cooling water tank 702 and the pelletizer 704 are on the same horizontal line.

[0036] In summary, the organic matter of household waste is first fed into the coarse crusher 1 for crushing. The crushed organic matter is then transported to the fine crusher 4 via the transport mechanism 3. During transport, the crushed organic matter is washed by the washing mechanism 2. The water pump 203 drives water from the water tank 204 through a water pipe, which is then sprayed from the high-pressure water nozzle 202 to wash the organic matter. The drive motor 205 then drives the fan blades 206 to rotate, transporting the organic matter to the fine crusher 4. Finally, the transport mechanism 3 transports the finely crushed organic matter to the low-temperature carbonization mechanism 6. During transport, the organic matter is further processed by the drying component 5. The second combustion port 502 dries the organic matter of domestic waste so that the low-temperature carbonization mechanism 6 can carbonize the organic matter of domestic waste. During transportation, excess water is discharged through the water outlet 9. The dried organic matter of domestic waste enters the inner cavity of the shell 601 through the feed inlet 602. The organic matter of domestic waste first falls on the first conveying mechanism 603. The servo motor 6031 is started, and the servo motor 6031 drives the first gear 6032 to rotate. The first gear chain 6033 drives the second gear 6034 to rotate, so that the friction roller 6035 rotates. Since the friction roller 6035 and the steel mesh conveyor belt 6036 form a friction transmission structure, the steel mesh conveyor belt 6036 moves.

[0037] Furthermore, a limit plate 6037 is installed on the outer diameter surface of the steel mesh conveyor belt 6036 to limit the organic matter of domestic waste, transporting it to the through holes on the heat insulation plate 604 so that it falls onto the second conveying mechanism 606. The organic matter is then carbonized at low temperature using the first combustion port 607, and heat is stored through the heat-conducting copper pipe 608. An air pump 6010 maintains an oxygen-deficient or low-oxygen environment inside the shell 601, and the flue gas is discharged and treated using an oil-gas separator 609. The gas inside the shell 601 is constantly controlled by the air inlet 6011 and the air outlet 6012. Additionally, due to the four sets of second conveying mechanisms 606... The materials are arranged in an alternating pattern to facilitate the turning of organic waste. The carbonized organic waste falls into the first collection box 6014 through the discharge port 6013. The carbonized organic waste collected in the first collection box 6014 is fed into the extruder 701, which extrudes the carbonized organic waste into long strips of solid plastic. The extruded long strips of solid plastic are then cooled in a cooling water tank 702 and dried by a dryer 703. After drying, the long strips of solid plastic enter the pelletizer 704, which cuts them into pellets. Finally, the plastic pellets are collected in a second collection box 705.

[0038] The granulation method is as follows:

[0039] a) First, the organic waste is fed into the coarse crusher 1 for crushing. Then, the crushed organic waste is transported to the fine crusher 4 via the transport mechanism 3. During the transport process, the crushed organic waste is washed by the washing mechanism 2. The water pump 203 drives the water in the water tank 204 through the water pipe to spray water from the high-pressure water nozzle 202 to wash the organic waste. After washing, the fan blades 206 are driven by the drive motor 205 to dry the washed organic waste. The organic waste is then transported to the fine crusher 4 for further crushing. The finely crushed organic waste is then transported to the low-temperature carbonization mechanism 6 via the transport mechanism 3. During the transport process, the organic waste is dried through the second combustion port 502 in the drying component 5 so that the low-temperature carbonization mechanism 6 can carbonize the organic waste. During the transport process, any excess water is discharged through the outlet 9.

[0040] (b) After drying, the organic matter from the municipal solid waste enters the inner cavity of the housing 601 through the feed inlet 602. The organic matter first falls onto the first conveying mechanism 603. The servo motor 6031 is then activated, driving the first gear 6032 to rotate. This, in turn, drives the second gear 6034 through the first gear chain 6033, causing the friction roller 6035 to rotate. Since the friction roller 6035 and the steel mesh conveyor belt 6036 form a friction transmission structure, the steel mesh conveyor belt 6036 moves. A limit plate 6037 is installed on the outer diameter surface of the steel mesh conveyor belt 6036 to limit the movement of the organic matter, thus transporting it to the through-hole on the heat insulation plate 604, where it falls onto the second conveying mechanism 606. During this transport, the organic matter undergoes low-temperature carbonization through the first combustion port 607, and is stored using the heat-conducting copper pipe 608. The system stores heat, providing insulation while ensuring uniform temperature within the inner cavity of the shell 601. During the low-temperature carbonization of organic waste, the exhaust pump 6010 maintains an oxygen-deficient or low-oxygen environment within the shell 601. The flue gas is discharged and treated via the oil-gas separator 609 to utilize combustible gas, thus facilitating the drying of the organic waste. This process is continuously controlled by the air inlet 6011 and outlet 6012, and the pusher rod 605 further assists in this process. The organic waste falling on the heat insulation plate 604 is pushed to the through hole to prevent leakage carbonization. Since the four sets of second conveying mechanisms 606 are arranged in an alternating manner, and the transmission direction of the second conveying mechanism 606 is right, left, right and left respectively from top to bottom, the organic waste can also be turned over, so that the organic waste is carbonized more fully. Finally, the carbonized organic waste falls into the first collection box 6014 through the discharge port 6013 for centralized collection for subsequent granulation.

[0041] c) The carbonized organic waste collected in the first collection bin 6014 is fed into the extruder 701. The extruder 701 extrudes the carbonized organic waste into long strips of solid plastic. The extruded long strips of solid plastic are then cooled in a cooling water tank 702 and dried in a dryer 703. After drying, the long strips of solid plastic are fed into a pelletizer 704 and pelletized. Finally, the plastic pellets are collected in the second collection bin 705, thus completing the entire pelletizing process.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-temperature drying carbon extraction and granulation system for municipal solid waste, comprising a coarse crusher (1), a washing mechanism (2), a conveying mechanism (3), a fine crusher (4), a drying assembly (5), a low-temperature carbonization mechanism (6), and a granulation assembly (7), characterized in that: A conveying mechanism (3) is provided between the coarse crusher (1) and the fine crusher (4), and between the fine crusher (4) and the low-temperature carbonization mechanism (6). A cleaning mechanism (2) is provided above the conveying mechanism (3) between the coarse crusher (1) and the fine crusher (4). A drying component (5) is provided above the conveying mechanism (3) between the fine crusher (4) and the low-temperature carbonization mechanism (6). The low-temperature carbonization mechanism (6) is installed on the side of the drying component (5) away from the fine crusher (4). A granulation component (7) is provided on the side of the low-temperature carbonization mechanism (6) away from the drying component (5). The low-temperature carbonization mechanism (6) includes a shell (601) and a feed inlet (602). The feed inlet (602) is installed on the upper end face of the shell (601). A first conveying mechanism (603) is provided above the inner cavity of the shell (601), and a heat insulation plate (604) is provided below the first conveying mechanism (603). A push rod (605) is installed on one side of the upper surface of the heat insulation plate (604). A second feeding mechanism (606) is provided below the heat insulation plate (604), and four sets of the second feeding mechanism (606) are provided. The four sets of the second feeding mechanism (606) are staggered. A first combustion port (607) is provided between the four sets of the second feeding mechanism (606). A heat-conducting copper pipe (608) is installed on the inner side of the second feeding mechanism (606). The shell (601) An oil-gas separator (609) is provided on the side wall of the housing (601), and an air pump (6010) is provided below the oil-gas separator (609). An air inlet (6011) is provided on the side of the housing (601) away from the oil-gas separator (609), and an air outlet (6012) is provided below the air inlet (6011). A discharge port (6013) is provided on the bottom end face of the housing (601), and a first collection box (6014) is provided below the discharge port (6013).

2. The low-temperature drying carbon extraction and granulation system for municipal solid waste according to claim 1, characterized in that: The first feeding mechanism (603) includes a servo motor (6031) and a first gear (6032). The first gear (6032) is mounted on the output shaft of the servo motor (6031). The first gear (6032) is meshed with a first toothed chain (6033), and the inner side of the first toothed chain (6033) is meshed with a second gear (6034). The second gear (6034) is mounted on one end of a friction roller (6035), and the friction roller (6035) is rubbed... The friction drive is connected to a steel mesh conveyor belt (6036), and the outer diameter surface of the steel mesh conveyor belt (6036) is provided with a limit plate (6037). The first material conveying mechanism (603) and the second material conveying mechanism (606) have the same structure. The transport mechanism (3) has the same structure as the first material conveying mechanism (603), and the transport mechanism (3) is placed at an angle. The outer surface of the transport mechanism (3) is covered with a protective cover (8), and the lowest end of the inner cavity of the protective cover (8) is provided with a water outlet (9).

3. The low-temperature drying carbon extraction and granulation system for municipal solid waste according to claim 2, characterized in that: The cleaning mechanism (2) includes a first housing (201) and a high-pressure water spray head (202). The first housing (201) is installed above the transport mechanism (3) between the coarse crusher (1) and the fine crusher (4). The high-pressure water spray head (202) is installed in the inner cavity of the first housing (201), and the high-pressure water spray head (202) is connected to a water pump (203) through a water pipe. The water pump (203) is connected to a water tank (204) through a water pipe. The inner cavity of the first housing (201) has a drive motor (205), and a fan blade (206) is provided at the output shaft of the output end of the drive motor (205). A vent (207) is provided through the first housing (201) on the side near the drive motor (205).

4. The low-temperature drying carbon extraction and granulation system for municipal solid waste according to claim 3, characterized in that: The drying assembly (5) includes a second outer shell (501) and a second combustion port (502). The second outer shell (501) is installed above the transport mechanism (3) between the fine crusher (4) and the low-temperature carbonization mechanism (6). The inner cavity of the second outer shell (501) is provided with the second combustion port (502).

5. A low-temperature drying carbon extraction and granulation system for municipal solid waste according to claim 4, characterized in that: The pelletizing assembly (7) includes an extruder (701) and a cooling water tank (702). The extruder (701) is installed on one side of the low-temperature carbonization mechanism (6), and a cooling water tank (702) is provided on one side of the extruder (701). A dryer (703) is provided on the side of the cooling water tank (702) away from the extruder (701), and a pelletizer (704) is provided on the side of the dryer (703) away from the cooling water tank (702). A second collection box (705) is provided at the discharge end of the pelletizer (704).

6. The low-temperature drying carbon extraction and granulation system for municipal solid waste according to claim 5, characterized in that: The first gear (6032) forms a gear transmission structure with the second gear (6034) through the first tooth chain (6033). The friction roller (6035) and the steel mesh conveyor belt (6036) form a friction transmission structure. The upper end face of the heat insulation plate (604) is longitudinally provided with a through hole. The feed port (602) forms a communication structure through the housing (601), the through hole and the discharge port (6013). The high-pressure water spray head (202) forms a communication structure with the water tank (204) through the water pump (203) and the water pipe. The entry ends of the extruder (701), the cooling water tank (702) and the pelletizer (704) are on the same horizontal line.

7. A granulation method for a low-temperature drying carbon extraction and granulation system for municipal solid waste as described in claim 6, characterized in that: The granulation method is as follows: a) First, the organic matter of domestic waste is fed into the coarse crusher (1) to crush it. Then, the crushed organic matter is transported to the fine crusher (4) via the transport mechanism (3). During the transport process, the crushed organic matter is washed by the washing mechanism (2). The water pump (203) drives the water in the water tank (204) to spray water from the high-pressure water nozzle (202) through the water pipe to wash the organic matter. After the organic matter is washed, it is then driven by the drive motor (205) The fan blades (206) are rotated to air dry the organic matter of the washed domestic waste so that the organic matter of the domestic waste can be transported to the fine crusher (4) for fine crushing. The finely crushed organic matter of the domestic waste is then transported to the low-temperature carbonization mechanism (6) by the transport mechanism (3). During the transport process, the organic matter of the domestic waste is dried through the second combustion port (502) in the drying component (5) so that the low-temperature carbonization mechanism (6) can carbonize the organic matter of the domestic waste. During the transport process, excess water is discharged through the outlet (9). b) After drying, the organic matter from the municipal solid waste enters the inner cavity of the shell (601) through the feed inlet (602). The organic matter first falls onto the first conveying mechanism (603), activating the servo motor (6031). The servo motor (6031) drives the first gear (6032) to rotate, which in turn drives the second gear (6034) to rotate through the first gear chain (6033), thereby causing the friction roller (6035) to rotate. Since the friction roller (6035) and the steel mesh conveyor belt (6036) constitute a friction transmission structure, then... The steel mesh conveyor belt (6036) is moved, and a limit plate (6037) is installed on the outer diameter surface of the steel mesh conveyor belt (6036) to limit the organic matter of domestic waste, thereby transporting the organic matter of domestic waste to the through hole on the heat insulation plate (604) so ​​that the organic matter of domestic waste falls onto the second conveying mechanism (606), and then the organic matter of domestic waste is carbonized at low temperature during the transportation process. The organic matter of domestic waste is carbonized at low temperature through the first combustion port (607), and the heat-conducting copper pipe ( 608) Stores heat, keeps warm, and ensures uniform temperature inside the shell (601). During low-temperature carbonization of organic waste, the air pump (6010) maintains an oxygen-deficient or low-oxygen environment inside the shell (601). The flue gas is discharged and treated through the oil-gas separator (609) to utilize combustible gas, thus facilitating the drying of organic waste. This process controls the gas inside the shell (601) at all times through the air inlet (6011) and air outlet (6012), and utilizes the material pusher. The rod (605) pushes the organic waste falling on the heat insulation plate (604) to the through hole to avoid leakage carbonization. Since the four sets of second conveying mechanisms (606) are arranged in an alternating manner, and the transmission direction of the second conveying mechanism (606) is right, left, right and left respectively from top to bottom, it can also turn over the organic waste, so that the organic waste is carbonized more fully. Finally, the carbonized organic waste falls into the first collection box (6014) through the discharge port (6013) for centralized collection, so as to be granulated later. c) The carbonized organic waste collected in the first collection bin (6014) is fed into the extruder (701). The carbonized organic waste is extruded into long strips of solid plastic by the extruder (701). The extruded long strips of solid plastic are then cooled by the cooling water tank (702). The long strips of solid plastic are then dried by the air dryer (703). After drying, the long strips of solid plastic are fed into the pelletizer (704). The long strips of solid plastic are pelletized by the pelletizer (704). Finally, the plastic pellets are collected in the second collection bin (705) to complete the entire pelletizing process.

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