Kitchen garbage collection and treatment integrated device and application thereof

Abstract

The application discloses a kitchen garbage collection and treatment integrated equipment and application thereof, and relates to the field of kitchen garbage treatment. The kitchen garbage collection and treatment integrated equipment and application thereof comprises a garbage dewatering unit, a solid material fermentation unit and a wastewater fermentation unit. The kitchen garbage collection and treatment integrated equipment and application thereof are embedded in a residential building to realize on-site treatment of kitchen garbage, facilitate residents to put kitchen garbage, and realize dewatering and oil removal of kitchen garbage on site, fermentation treatment of solid material and liquid, direct use of solid waste after fermentation as biological fertilizer, reduction of transportation cost and transportation pollution, sediment pumping and draining treatment, grease pumping and draining and wastewater recycling after precipitation of waste liquid, reduction of external water, and reduction of pollution after impurity removal and oil removal and secondary fermentation of sewage discharged into a sewage pipe network. Meanwhile, the whole process is basically automatically processed to reduce labor cost and interference to residents' life.

Description

Technical Field

[0001] This invention relates to the field of kitchen waste treatment technology, specifically to an integrated kitchen waste collection and treatment device and its application. Background Technology

[0002] Currently, in order to actively and comprehensively promote the "reduction, resource utilization, and harmless treatment" of domestic waste in newly built residential communities, build a domestic waste classification system of "classified disposal, classified collection, classified transportation, and classified treatment", and improve the quality of urban living environment, all communities have begun to implement waste classification and treatment. Among the domestic waste, kitchen waste accounts for the largest proportion of pollution.

[0003] Currently, the treatment of kitchen waste requires the separation of wet and dry waste. Wet waste such as food scraps should be sorted and disposed of separately from dry waste such as bones. Then, special transport vehicles collect the waste from each community and transport it to a special kitchen waste treatment station for centralized processing.

[0004] However, in the above-mentioned process, kitchen waste sorting is quite troublesome for residents, their awareness of sorting needs to be improved, and errors are prone to occur during the sorting process. At the same time, leakage often occurs after the waste is packaged, polluting the community environment. In addition, kitchen waste needs to go through the process of collection, transportation and centralized treatment, which is costly and can easily cause secondary pollution. In order to create a local resource-based treatment of community household waste that does not leave the community and truly meet the requirements of harmless treatment, the basic idea of ​​this solution is to pre-install kitchen waste crushing devices in the kitchens of newly built communities for local treatment. For this purpose, an integrated kitchen waste collection and treatment equipment and its application are provided to solve the above problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides an integrated equipment for the collection and treatment of kitchen waste and its application, which solves the problems of the current process of sorting, packaging, designated disposal, collection and transportation, and centralized treatment of kitchen waste, which is inconvenient for residents, costly for centralized treatment, and prone to causing secondary pollution.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: an integrated kitchen waste collection and treatment equipment and its application, comprising a waste dehydration unit, a solid material fermentation unit, and a wastewater fermentation unit. The waste dehydration unit includes a waste dehydration tank and a rotatable dehydration mechanism installed inside the waste dehydration tank. A collection main pipe is installed on the top of the waste dehydration tank, and collection branch pipes are installed on the outer surface of the collection main pipe. A waste discharge hopper is installed at the bottom of the collection main pipe. A pressing mechanism is provided on the top of the dehydration mechanism, which is used to squeeze and separate the water inside the dehydration mechanism and push the material out. A solid-liquid separation mechanism is installed below the dehydration mechanism. A sealed solid material conveyor is installed between the solid-liquid separation mechanism and the solid material fermentation unit. A drain pipe is installed between the solid-liquid separation mechanism and the wastewater fermentation unit.

[0009] The waste hopper includes a conical hopper and a stop plate inserted inside the conical hopper. The dewatering mechanism includes a rotating seat and three sets of dewatering cylinders installed on the rotating seat. The three sets of dewatering cylinders are used in a cycle for receiving material, pressing and dewatering, and discharging material. The three sets of dewatering cylinders rotate synchronously to drive the stop plate to move and control the opening and closing of the bottom of the waste hopper.

[0010] Preferably, the solid-liquid separation mechanism includes a connecting seat installed at the bottom of the waste dewatering tank. The top of the connecting seat has a set of solid material discharge ports and two sets of filter screen holes. A solid material collection bin is installed at the bottom of the solid material discharge ports. A servo motor is installed on the side of the connecting seat. A gear ring is fixedly sleeved on the bottom outer surface of the rotating seat. A drive gear is installed at the output end of the servo motor. A transmission gear meshes between the drive gear and the gear ring.

[0011] Preferably, the bottom of the filter screen and the solid material discharge port are both connected to the drain pipe. The pressing mechanism includes a servo hydraulic cylinder installed on the top of the waste dewatering tank. A connecting frame is installed at the output end of the servo hydraulic cylinder. A filter press plate and a pusher plate are installed at the bottom end of the connecting frame. The filter press plate faces one set of filter screens, and the other set of filter screens faces the conical hopper. The pusher plate faces the solid material discharge port. A drain outlet is provided at the top of the solid material collection bin.

[0012] Preferably, the bottom end of the pusher plate is provided with an annular spray hole, the top of the pusher plate is equipped with a metal pipe, one end of the metal pipe is connected to the annular spray hole, the other end of the metal pipe is equipped with a reinjection pipe, the metal pipe is slidably connected to the inner wall of the waste dewatering tank, the wastewater fermentation unit includes a sedimentation tank, a first fermentation tank and a second fermentation tank connected in sequence, the other end of the reinjection pipe is connected to the middle of the sedimentation tank, and a reinjection booster pump is installed on the outer surface of the reinjection pipe, and the drain pipe is installed at the top of the sedimentation tank.

[0013] Preferably, a sealing box is fixedly installed on the inner side of the bottom of the conical hopper, the stop plate is inserted into the inside of the sealing box, a top block is movably inserted into the side wall of the waste dewatering box, a connecting strip is installed between the top block and the stop plate, a return spring is provided on the back of the connecting strip, a connecting ring is installed on the outer surface of the three sets of dewatering cylinders, the connecting ring abuts against the top block, a distance sensor for detecting the amount of solid material inside the dewatering cylinder is installed on the side of the conical hopper, a downward-flipping metal mesh plate is provided at the inner bottom of the dewatering cylinder, a top rod is fixedly installed at the bottom of the pusher plate, the top rod is used to push the metal mesh plate downward and flip it into the solid material discharge port, and an air purifier for exhaust purification is installed on the top of the collection main pipe.

[0014] Preferably, the bottom end of the sealed solid material conveyor is connected to the solid material collection bin, and a conveyor belt is installed inside the sealed solid material conveyor. An inclined guide mesh plate is provided at the bottom of the solid material collection bin, facing the top of the bottom end of the conveyor belt. The solid material fermentation unit includes a collection fermentation bin, a deep electric auxiliary heating fermentation tank, and a spiral dehydrator stacked on top of each other. The sealed solid material conveyor is connected to the top of the collection fermentation bin. A drive motor for driving the conveyor belt is installed at the top of the collection fermentation bin, and a microbial inlet is provided at the top of the collection fermentation bin.

[0015] Preferably, a stirring motor is installed on the top of the collecting fermentation chamber, and a stirring shaft is installed at the output end of the stirring motor, penetrating the collecting fermentation chamber and the deep electric auxiliary heating fermentation tank. Stirring rods are provided inside both the collecting fermentation chamber and the deep electric auxiliary heating fermentation tank, and the stirring rods are fixedly connected to the outer surface of the stirring shaft. A guide pipe is installed between the collecting fermentation chamber and the deep electric auxiliary heating fermentation tank. A scraper is provided at the bottom of the collecting fermentation chamber, and the scraper is fixedly connected to the outer surface of the stirring shaft. A stop valve is installed in the middle of the guide pipe.

[0016] Preferably, the bottom end of the deep electric auxiliary heating fermentation tank is equipped with the same stop valve between the bottom end and the feed end of the screw dewatering machine, the end of the screw dewatering machine is equipped with a slag discharge pipe, the bottom of the screw dewatering machine is equipped with a filtrate pipe, and the other end of the filtrate pipe is connected to the sedimentation tank.

[0017] Preferably, an overflow pipe is installed between the sedimentation tank, the first fermentation tank, and the second fermentation tank; an oil extraction pipe for collecting floating oil is installed at the top of the sedimentation tank; a liquid outlet pipe is installed at the end of the second fermentation tank; a sludge pipe is installed between the bottom of the sedimentation tank and the collection fermentation chamber; a sludge pump is installed on the outer surface of the sludge pipe; a water inlet pipe is installed at the bottom of the first fermentation tank; and a three-way valve is installed between the water inlet pipe and the bottom of the sludge pipe.

[0018] Preferably, integrated kitchen waste collection and treatment equipment is used for kitchen waste treatment in residential buildings.

[0019] This invention discloses an integrated device for collecting and processing kitchen waste and its application, which has the following beneficial effects:

[0020] 1. This integrated kitchen waste collection and treatment equipment and its application involves embedding a main collection pipe in a residential building and extending the collection branch pipes to the residents' kitchens. A kitchen waste shredder is installed in the kitchen to process the kitchen waste directly on-site. Then, by constructing a waste dehydration unit, a solid material fermentation unit, and a wastewater fermentation unit in the underground garage of the residential building, the kitchen waste is dehydrated and fermented, and the kitchen wastewater is fermented and treated. This reduces the workload of residents in sorting kitchen waste, reduces the cost of kitchen waste transportation, avoids secondary pollution caused by kitchen waste, and achieves on-site treatment of kitchen waste.

[0021] 2. This integrated kitchen waste collection and treatment equipment and its application, by setting a waste hopper in the waste dewatering tank, and three sets of cyclically rotating dewatering cylinders below the waste hopper, and two sets of filter screens and one set of solid material hoppers below the dewatering cylinders, can realize the quantitative receiving, dewatering and oil removal, and solid material discharge of kitchen waste in a cyclical manner. In addition, the waste hoppers automatically open and close during the rotation of the dewatering cylinders to prevent kitchen waste leakage, thereby completing the automated front-end dewatering and oil removal treatment of kitchen waste. Furthermore, a distance sensor is used to monitor the amount of kitchen waste collected in the dewatering cylinders, realizing fully automated intermittent processing, avoiding equipment idling, reducing manual intervention, and lowering processing costs.

[0022] 3. The integrated kitchen waste collection and treatment equipment and its application adopt a split solid material fermentation unit. The upper collection fermentation chamber realizes the initial fermentation of kitchen waste collected on the same day by stirring and mixing. The lower deep electric auxiliary heating fermentation tank carries out 24-hour deep fermentation to improve the fermentation effect of kitchen waste. Finally, dewatering and slag discharge are carried out. The discharged waste residue is directly used for the production of organic fertilizer, reducing the amount of dewatering, reducing transportation costs, and reducing secondary pollution caused by sewage in kitchen waste during transportation.

[0023] 4. This integrated kitchen waste collection and treatment equipment and its application involves setting up a wastewater fermentation unit to perform sedimentation and secondary fermentation on the wastewater. The solid waste residue deposited at the bottom of the sedimentation tank is pumped into the collection fermentation chamber for unified treatment via a sludge pump. The fermentation liquid at the bottom of the first fermentation tank contains a large number of biological bacteria. By activating a three-way valve and then pumping a portion of the wastewater from the first fermentation tank into the collection fermentation chamber via a sludge pump, some of the solid waste is aided in fermentation and decomposition. The suspended grease on the top layer of the sedimentation tank is extracted through an oil extraction pipe for the production of biofuel. The liquid in the middle layer of the sedimentation tank is pumped through a reinjection pipe to an annular spray hole for auxiliary spraying and feeding, thereby reducing external water consumption, achieving efficient wastewater utilization, and reducing sewage discharge.

[0024] 5. This integrated kitchen waste collection and treatment equipment and its application adopts a self-enclosed integrated treatment device to reduce the water content and remove oil from kitchen waste. Then, solid waste and liquid waste are fermented separately. The treatment process and the classification and transfer process are carried out in a closed manner. At the same time, the inside of the waste dehydration tank is cleaned daily, and the waste inside the deep electric auxiliary heating fermentation tank is discharged to the outside. Then, the solid waste inside the collection fermentation chamber is discharged downward into the deep electric auxiliary heating fermentation tank. The operation time is set from 2-4 am to reduce the impact of on-site waste treatment on residents' lives. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall rear structure of the present invention;

[0028] Figure 3 This is a cross-sectional view of the overall front structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the outer surface structure of the waste dewatering tank of the present invention;

[0030] Figure 5 This is a cross-sectional view of the internal structure of the waste dewatering tank of the present invention;

[0031] Figure 6 This is a schematic diagram of the outer surface structure of the dehydration mechanism of the present invention;

[0032] Figure 7 This is a cross-sectional view of the bottom structure inside the waste dewatering tank of the present invention;

[0033] Figure 8 This is a schematic diagram of the outer surface structure of the connecting frame of the present invention;

[0034] Figure 9 This is a cross-sectional view of the inner wall structure of the waste dewatering tank of the present invention;

[0035] Figure 10 This is a cross-sectional view of the internal structure of the dehydration cylinder of the present invention;

[0036] Figure 11 This is a schematic diagram of the solid material fermentation unit structure of the present invention;

[0037] Figure 12This is a schematic diagram of the bottom structure of the deep electric-assisted heating fermentation tank of the present invention;

[0038] Figure 13 This is a schematic diagram of the front structure of the wastewater fermentation unit of the present invention;

[0039] Figure 14 This is a schematic diagram of the rear structure of the wastewater fermentation unit of the present invention.

[0040] In the diagram: 1. Waste dewatering unit; 101. Waste dewatering box; 102. Dewatering mechanism; 1021. Rotary seat; 1022. Dewatering cylinder; 1023. Connecting ring; 1024. Toothed ring; 1025. Metal mesh plate; 103. Main collection pipe; 104. Branch collection pipe; 105. Air purifier; 106. Waste hopper; 1061. Conical hopper; 1062. Top block; 1063. Sealing box; 1064. Stop plate; 1065. Connecting bar; 1066. Return spring; 1067. Distance sensor; 107. Solid-liquid separation mechanism; 1071. Connecting seat; 1072. Servo motor; 1073. Drive gear; 1074. Filter screen; 1075. Solid material discharge port; 108. Pressing mechanism; 1081. Servo hydraulic cylinder; 1082. Pusher plate; 1083. Filter press plate; 1084. Connecting frame; 1085. Annular spray hole; 1086. Top rod; 1087. Metal pipe; 2. Solid material fermentation unit; 201. Collection fermentation chamber; 202. Deep electric auxiliary heating fermentation tank; 203. Screw dewatering machine; 204. Feed guide pipe; 205. Stirring motor; 206. Stirring shaft; 207. Stirring rod; 208. Scraper rod; 209. Stop valve; 3. Wastewater fermentation unit; 301. Sedimentation tank; 302. First fermentation tank; 303. Second fermentation tank; 304. 305. Oil extraction pipe; 306. Overflow pipe; 307. Liquid outlet pipe; 4. Reinjection pipe; 5. Sludge pipe; 6. Filtration pipe; 7. Drainage pipe; 8. Sealed solid material conveyor; 9. Conveyor belt; 10. Solid material collection bin; 11. Inclined guide mesh plate; 12. Transmission gear; 13. Drain outlet; 14. Drive motor; 15. Slag discharge pipe; 16. Sludge pump; 17. Water supply pipe; 18. Three-way valve; 19. Reinjection booster pump; 20. Microbial inlet. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] This application provides an integrated equipment for the collection and treatment of kitchen waste and its application, which solves the problems of the current process of kitchen waste requiring sorting, packaging, fixed-point disposal, collection and transportation and centralized treatment, which is troublesome for residents, costly for centralized treatment and easy to cause secondary pollution.

[0043] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0044] This invention discloses an integrated equipment for collecting and processing kitchen waste and its application.

[0045] According to the appendix Figure 1-14 As shown, the system includes a waste dewatering unit 1, a solid material fermentation unit 2, and a wastewater fermentation unit 3. The waste dewatering unit 1 includes a waste dewatering tank 101 and a rotatable dewatering mechanism 102 installed inside the waste dewatering tank 101. A collection main pipe 103 is installed on the top of the waste dewatering tank 101, and collection branch pipes 104 are installed on the outer surface of the collection main pipe 103. There are multiple sets of collection branch pipes 104, which are used to extend to the kitchen of each household in the residential building and connect to the kitchen waste shredder installed in the kitchen. A waste hopper 106 is installed at the bottom of the collection main pipe 103. A pressing mechanism 108 is set on the top of the dewatering mechanism 102. The pressing mechanism 108 is used to squeeze and separate the water inside the dewatering mechanism 102 and push the material out. A solid-liquid separation mechanism 107 is installed below the dewatering mechanism 102. A sealed solid material conveyor 8 is installed between the solid-liquid separation mechanism 107 and the solid material fermentation unit 2. A drain pipe 7 is installed between the solid-liquid separation mechanism 107 and the wastewater fermentation unit 3.

[0046] The waste hopper 106 includes a conical hopper 1061 and a stop plate 1064 inserted inside the conical hopper 1061. The dewatering mechanism 102 includes a rotating seat 1021 and three sets of dewatering cylinders 1022 mounted on the rotating seat 1021. The three sets of dewatering cylinders 1022 are used for receiving materials, pressing and dewatering, and discharging materials in a cycle. The three sets of dewatering cylinders 1022 rotate synchronously to drive the stop plate 1064 to move and control the opening and closing of the bottom of the waste hopper 106.

[0047] The solid-liquid separation mechanism 107 includes a connecting seat 1071 installed at the bottom of the waste dewatering tank 101. The top of the connecting seat 1071 is provided with a set of solid material discharge ports 1075 and two sets of filter screens 1074. The bottom of the solid material discharge ports 1075 is provided with a solid material collection bin 10. A servo motor 1072 is installed on the side of the connecting seat 1071. A gear ring 1024 is fixedly sleeved on the bottom outer surface of the rotating seat 1021. A drive gear 1073 is installed at the output end of the servo motor 1072. A transmission gear 12 meshes between the drive gear 1073 and the gear ring 1024.

[0048] The bottoms of the water filter mesh 1074 and the solid material discharge port 1075 are both connected to the drain pipe 7. The pressing mechanism 108 includes a servo hydraulic cylinder 1081 installed on the top of the waste dewatering tank 101. A connecting frame 1084 is installed at the output end of the servo hydraulic cylinder 1081. A filter press plate 1083 and a pusher plate 1082 are installed at the bottom of the connecting frame 1084. The filter press plate 1083 faces one set of water filter mesh 1074, and another set of water filter mesh 1074 faces the conical hopper 1061. The pusher plate 1082 faces the solid material discharge port 1075. A drain outlet 13 is opened at the top of the solid material collection bin 10. A detachable hose is installed at the bottom of both the water filter mesh 1074 and the solid material collection bin 10. The hose is used to connect to the drain pipe 7 to collect wastewater and also to facilitate disassembly and unblocking when blocked.

[0049] The bottom end of the pusher plate 1082 is provided with an annular spray hole 1085, and the top of the pusher plate 1082 is equipped with a metal pipe 1087. One end of the metal pipe 1087 is connected to the annular spray hole 1085, and the other end of the metal pipe 1087 is equipped with a reinjection pipe 4. The metal pipe 1087 is slidably connected to the inner wall of the waste dewatering tank 101. The wastewater fermentation unit 3 includes a sedimentation tank 301, a first fermentation tank 302 and a second fermentation tank 303 connected in sequence. The other end of the reinjection pipe 4 is connected to the middle of the sedimentation tank 301, and a reinjection booster pump 19 is installed on the outer surface of the reinjection pipe 4. The drain pipe 7 is installed at the top of the sedimentation tank 301.

[0050] A sealing box 1063 is fixedly installed on the inner side of the bottom end of the conical hopper 1061. A stop plate 1064 is inserted into the inside of the sealing box 1063. A top block 1062 is movably inserted into the side wall of the waste dewatering box 101. A connecting strip 1065 is installed between the top block 1062 and the stop plate 1064. A return spring 1066 is provided on the back of the connecting strip 1065. A connecting ring 1023 is installed on the outer surface of the three sets of dewatering cylinders 1022. The connecting ring 1023 abuts against the top block 1062. A distance sensor for detecting the amount of solid material inside the dewatering cylinder 1022 is installed on the side of the conical hopper 1061. The device 1067 has a metal mesh plate 1025 that can be flipped downwards at the bottom of the dewatering cylinder 1022. A push rod 1086 is fixedly installed at the bottom of the push plate 1082. The push rod 1086 is used to push the metal mesh plate 1025 downwards and flip it into the solid material discharge port 1075. An air purifier 105 for exhaust purification is installed on the top of the collection pipe 103. A torsion spring is provided between the metal mesh plate 1025 and the dewatering cylinder 1022. After the solid material inside the dewatering cylinder 1022 is emptied, the push plate 1082 returns to its original position. At this time, the metal mesh plate 1025 automatically flips upwards and returns to its original position.

[0051] The bottom end of the sealed solid material conveyor 8 is connected to the solid material collection bin 10. The sealed solid material conveyor 8 is equipped with a conveyor belt 9. The bottom of the solid material collection bin 10 is provided with an inclined guide mesh plate 11 facing the top of the bottom end of the conveyor belt 9. The solid material fermentation unit 2 includes a collection fermentation bin 201, a deep electric auxiliary heating fermentation tank 202 and a spiral dewatering machine 203 stacked on top of each other. The sealed solid material conveyor 8 is connected to the top of the collection fermentation bin 201. The top of the collection fermentation bin 201 is equipped with a drive motor 14 for driving the conveyor belt 9. The top of the collection fermentation bin 201 is provided with a microbial inlet 20 for feeding biological microorganisms into the collection fermentation bin 201.

[0052] A stirring motor 205 is installed on the top of the collecting fermentation chamber 201. A stirring shaft 206 is installed at the output end of the stirring motor 205, which passes through the collecting fermentation chamber 201 and the deep electric auxiliary heating fermentation tank 202. A stirring rod 207 is installed inside both the collecting fermentation chamber 201 and the deep electric auxiliary heating fermentation tank 202, and the stirring rod 207 is fixedly connected to the outer surface of the stirring shaft 206. A guide pipe 204 is installed between the collecting fermentation chamber 201 and the deep electric auxiliary heating fermentation tank 202. A scraper 208 is installed at the bottom of the collecting fermentation chamber 201, and the scraper 208 is fixedly connected to the outer surface of the stirring shaft 206. A stop valve 209 is installed in the middle of the guide pipe 204.

[0053] The bottom end of the deep electric auxiliary heating fermentation tank 202 and the feed end of the screw dewatering machine 203 are equipped with the same stop valve 209. The end of the screw dewatering machine 203 is equipped with a slag discharge pipe 15. The bottom of the screw dewatering machine 203 is equipped with a filter pipe 6. The other end of the filter pipe 6 is connected to the sedimentation tank 301.

[0054] An overflow pipe 305 is installed between the sedimentation tank 301, the first fermentation tank 302, and the second fermentation tank 303. An oil extraction pipe 304 for collecting floating oil is installed at the top of the sedimentation tank 301, and an outlet pipe 306 is installed at the end of the second fermentation tank 303.

[0055] A sludge pipe 5 is installed between the bottom of the sedimentation tank 301 and the collection fermentation chamber 201. A sludge pump 16 is installed on the outer surface of the sludge pipe 5. A water supply pipe 17 is installed at the bottom of the first fermentation tank 302. A three-way valve 18 is installed between the water supply pipe 17 and the bottom of the sludge pipe 5.

[0056] Integrated kitchen waste collection and treatment equipment is used for kitchen waste treatment in residential buildings.

[0057] Working principle: The device needs to be pre-installed during the construction of the residential building so that the main collection pipe 103 is embedded in the residential building, and the collection branch pipe 104 extends to the kitchen of each household. By installing a food waste shredder at the kitchen sink, the collection branch pipe 104 is connected to the food waste shredder. Meanwhile, the waste dewatering unit 1, solid material fermentation unit 2 and wastewater fermentation unit 3 are built in the underground garage of the residential building, and their size is configured according to the size of the residential building.

[0058] In practical use, a PLC controller is installed to control the various electrical components in the equipment, enabling automatic start and stop. Household kitchen waste is processed by a kitchen waste shredder, handling both dry and wet waste. The shredded kitchen waste enters the main collection pipe 103 through the collection branch pipe 104, then falls into the conical hopper 1061, and then into a set of dewatering cylinders 1022. At this time, the metal mesh plate 1025 at the bottom of the dewatering cylinder 1022 abuts against the filter mesh 1074, and simultaneously, the connecting ring 1023 on the outer surface of the dewatering cylinder 1022 abuts against the top block 1062, causing the stop plate 1064 to move out from the bottom of the conical hopper 1061. The kitchen waste then falls into the dewatering cylinder 1022, where the water naturally filters downwards, passing through the filter mesh 1074 into the drain pipe 7, and then into the sedimentation tank 301. Solid waste from kitchen waste accumulates at the bottom of the dewatering drum 1022. The amount of solid waste is monitored by a distance sensor 1067. When the solid waste reaches a preset height, the servo motor 1072 drives the gear ring 1024 to rotate, causing the rotating seat 1021 to rotate 120 degrees. At this point, the dewatering drum 1022, containing the waste, rotates to below the filter press plate 1083. The connecting ring 1023 on the outer surface of the dewatering drum 1022 then disengages from the top block 1062. At this time, the return spring 1... Under the action of 066, the stop plate 1064 is pushed into the inner bottom of the conical hopper 1061. At this time, the conical hopper 1061 stops feeding. After the rotating seat 1021 completes a 120-degree rotation, another set of dewatering cylinders 1022 rotates to below the conical hopper 1061. At this time, the connecting ring 1023 on the outer surface of the dewatering cylinder 1022 pushes the top block 1062 inward. At this time, the stop plate 1064 moves inward, and the kitchen waste inside the conical hopper 1061 starts feeding again.

[0059] As the rotating seat 1021 completes one rotation, the dewatering cylinder 1022 containing kitchen waste is positioned below the filter press plate 1083. At this point, the servo hydraulic cylinder 1081 is activated, causing the filter press plate 1083 and the pusher plate 1082 to move downwards synchronously. The filter press plate 1083 squeezes the kitchen waste inside the dewatering cylinder 1022, forcing the oil and water in the kitchen waste into the filter mesh 1074 and into the sedimentation tank 301 through the drain pipe 7. Then, the servo hydraulic cylinder 108... 1. After the second set of dewatering cylinders 1022 is filled with kitchen waste, the rotating seat 1021 rotates again. At this time, the dewatering cylinder 1022 that has completed dewatering rotates to the solid material discharge port 1075 position. The dewatering cylinder 1022 that just received the kitchen waste rotates to below the filter press plate 1083. Then, the servo hydraulic cylinder 1081 is started again, so that one set of dewatering cylinders 1022 dewaters the kitchen waste. Meanwhile, the push rod 1086 at the bottom of the pusher plate 1082 pushes the metal mesh at the bottom of the other set of dewatering cylinders 1022. The plate 1025 is pushed downwards, causing the metal mesh plate 1025 to flip and open into the solid material discharge port 1075. At this time, the reinjection booster pump 19 is started, pumping the middle layer water settled in the sedimentation tank 301 into the metal pipe 1087, and then spraying it through the annular spray hole 1085, so that the dehydrated kitchen waste enters the solid material collection bin 10. The water is filtered by the inclined guide mesh plate 11, and then the solid material is transported to the collection fermentation bin 201 by the conveyor belt 9. The water separated by the inclined guide mesh plate 11 flows downwards into the drain pipe 7 and back into the sedimentation tank 301. This part of the operation realizes the cyclic collection of kitchen waste. The control is realized by the PLC controller, so that the distance sensor 1067 can monitor the amount of kitchen waste collected, and then start the kitchen waste dehydration and feeding to avoid the equipment running idle. At the same time, the collection, degreasing and feeding cycle operation is realized. The main purpose is to reduce the moisture content and squeeze out most of the oil to avoid the oil covering and affecting the subsequent solid material fermentation.

[0060] After the kitchen waste solids enter the collection and fermentation chamber 201, the stirring motor 205 is intermittently started by the PLC to periodically stir the garbage collected that day. By opening the stop valve 209, the scraper 208 rotates at the bottom of the collection and fermentation chamber 201. The bottom of the collection and fermentation chamber 201 is inclined from all sides to the center, and a truncated cone is set in the middle. This allows the garbage to enter the guide pipe 204 under the action of the scraper 208. After the garbage undergoes preliminary fermentation, it enters the deep electric auxiliary heating fermentation tank 202 the next day for 24-hour deep fermentation. The fermented garbage then enters the spiral dewatering machine 203 for pressing and dewatering. The dewatered waste residue is collected by workers and transported out. It can be used directly as biological organic fertilizer, while the wastewater generated by pressing is reinjected into the sedimentation tank 301.

[0061] During the above operation, the sedimentation tank 301 is used to receive all the wastewater, which then overflows into the first fermentation tank 302 and the second fermentation tank 303 through the overflow pipe 305. After the secondary fermentation is completed, the wastewater overflows outward and enters the municipal sewage network for discharge. At the same time, the solid waste residue deposited at the bottom of the sedimentation tank 301 is pumped into the collection fermentation chamber 201 for unified treatment by the sludge pump 16. The fermentation liquid at the bottom of the first fermentation tank 302 contains a large number of biological bacteria. By activating the three-way valve 18, some of the sewage in the first fermentation tank 302 is pumped into the collection fermentation chamber 201 by the sludge pump 16 to assist the fermentation and decomposition of solid waste. The suspended oil on the top layer of the sedimentation tank 301 is extracted outward through the oil extraction pipe 304 for the production of biofuel. The middle layer liquid in the sedimentation tank 301 is pumped to the annular spray hole 1085 through the reinjection pipe 4 to assist the spraying and feeding, thereby reducing external water consumption.

[0062] The entire device adopts a closed waste disposal method to reduce air pollution in the underground garage of the residential building. At the same time, the top of the collection pipe 103 extends to the roof of the residential building. An air purifier 105 is installed to draw the gas inside the collection pipe 103 upwards, purify it, and then discharge it, reducing the backflow of odors into the kitchen of the residential building.

[0063] The inside of the waste dewatering bin 101 is cleaned daily. Wastewater enters the solid material collection bin 10 through the drain 13 for filtration. At the same time, the waste inside the deep electric auxiliary heating fermentation tank 202 is discharged outward. Then, the solid waste inside the collection fermentation bin 201 is discharged downward into the deep electric auxiliary heating fermentation tank 202. The operation time is set from 2 to 4 a.m., when the amount of kitchen waste generated is the least, which facilitates cleaning and material transportation.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An integrated equipment for collecting and treating kitchen waste, comprising a waste dewatering unit (1), a solid material fermentation unit (2), and a wastewater fermentation unit (3), characterized in that, The waste dewatering unit (1) includes a waste dewatering box (101) and a rotating dewatering mechanism (102) inside it. The top of the waste dewatering tank (101) is equipped with a collection main pipe (103), the surface of the collection main pipe (103) is equipped with a collection branch pipe (104), and the bottom of the collection main pipe (103) is equipped with a waste discharge hopper (106). The waste hopper (106) includes a conical hopper (1061) and a stop plate (1064) inserted inside the conical hopper (1061). The top of the dewatering mechanism (102) is provided with a pressing mechanism (108), which squeezes and separates the water inside the dewatering mechanism (102) and pushes the material out; the pressing mechanism (108) includes a pusher plate (1082), and the bottom end of the pusher plate (1082) is provided with an annular spray hole (1085). The dewatering mechanism (102) includes a rotating base (1021) and a dewatering cylinder (1022) mounted on the rotating base (1021). A solid-liquid separation mechanism (107) is installed below the dewatering mechanism (102). The solid-liquid separation mechanism (107) includes a connecting seat (1071) installed at the bottom of the waste dewatering tank (101). The top of the connecting seat (1071) is provided with a solid material discharge port (1075) and a water filter screen (1074). The dewatering cylinder (1022) rotates synchronously, driving the stop plate (1064) to move and controlling the waste discharge hopper (1064). 6) Bottom opening and closing; The bottom of the dewatering cylinder (1022) is provided with a downward flip-down metal mesh plate (1025), and the bottom of the pusher plate (1082) is fixedly installed with a top rod (1086). The top rod (1086) is used to push the metal mesh plate (1025) downward and flip it into the solid material discharge port (1075). A torsion spring is provided between the metal mesh plate (1025) and the dewatering cylinder (1022). After the solid material inside the dewatering cylinder (1022) is emptied, the pusher plate (1082) returns to its original position. At this time, the metal mesh plate (1025) automatically flips to its original position. A sealed solid material conveyor (8) is installed between the solid-liquid separation mechanism (107) and the solid material fermentation unit (2); A drain pipe (7) is installed between the solid-liquid separation mechanism (107) and the wastewater fermentation unit (3).

2. The integrated kitchen waste collection and treatment equipment according to claim 1, characterized in that: A solid material collection bin (10) is installed at the bottom of the solid material discharge port (1075), and a servo motor (1072) is installed on the side of the connecting seat (1071). A gear ring (1024) is fixedly sleeved on the bottom outer surface of the rotating seat (1021), and a drive gear (1073) is installed at the output end of the servo motor (1072). A transmission gear (12) meshes between the drive gear (1073) and the gear ring (1024).

3. The integrated kitchen waste collection and treatment equipment according to claim 2, characterized in that: The bottom of the water filter mesh (1074) and the solid material discharge port (1075) are connected to the drain pipe (7). The pressing mechanism (108) includes a servo hydraulic cylinder (1081) installed on the top of the waste dewatering tank (101). A connecting frame (1084) is installed at the output end of the servo hydraulic cylinder (1081). A filter press plate (1083) and a pusher plate (1082) are installed at the bottom end of the connecting frame (1084). The filter press plate (1083) faces a set of water filter mesh (1074), and another set of water filter mesh (1074) faces a conical bucket (1061). The pusher plate (1082) faces the solid material discharge port (1075). A drain outlet (13) is opened at the top of the solid material collection bin (10).

4. The integrated kitchen waste collection and treatment equipment according to claim 3, characterized in that: A metal pipe (1087) is installed on the top of the pusher plate (1082). One end of the metal pipe (1087) is connected to the annular spray hole (1085). The other end of the metal pipe (1087) is equipped with a reinjection pipe (4). The metal pipe (1087) is slidably connected to the inner wall of the waste dewatering tank (101). The wastewater fermentation unit (3) includes a sedimentation tank (301), a first fermentation tank (302), and a second fermentation tank (303) connected in sequence. The other end of the reinjection pipe (4) is connected to the middle of the sedimentation tank (301). A reinjection booster pump (19) is installed on the outer surface of the reinjection pipe (4). The drain pipe (7) is installed at the top of the sedimentation tank (301).

5. The integrated kitchen waste collection and treatment equipment according to claim 4, characterized in that: A sealing box (1063) is fixedly installed on the inner side of the bottom end of the conical hopper (1061). The stop plate (1064) is inserted into the inside of the sealing box (1063). A top block (1062) is movably inserted into the side wall of the waste dewatering box (101). A connecting strip (1065) is installed between the top block (1062) and the stop plate (1064). A return spring (1066) is provided on the back of the connecting strip (1065). A connecting ring (1023) is installed on the outer surface of the three sets of dewatering cylinders (1022). The connecting ring (1023) abuts against the top block (1062). A distance sensor (1067) for detecting the amount of solid material inside the dewatering cylinder (1022) is installed on the side of the conical hopper (1061). An air purifier (105) for exhaust purification is installed on the top of the collection main pipe (103).

6. The integrated kitchen waste collection and treatment equipment according to claim 4, characterized in that: The bottom end of the sealed solid material conveyor (8) is connected to the solid material collection bin (10). The sealed solid material conveyor (8) is equipped with a conveyor belt (9). The bottom of the solid material collection bin (10) is provided with an inclined guide mesh plate (11) facing the top of the bottom end of the conveyor belt (9). The solid material fermentation unit (2) includes a collection fermentation bin (201), a deep electric auxiliary heating fermentation tank (202), and a spiral dehydrator (203) stacked on top of each other. The sealed solid material conveyor (8) is connected to the top of the collection fermentation bin (201). The top of the collection fermentation bin (201) is equipped with a drive motor (14) for driving the conveyor belt (9). The top of the collection fermentation bin (201) is provided with a microbial inlet (20).

7. The integrated kitchen waste collection and treatment equipment according to claim 6, characterized in that: A stirring motor (205) is installed on the top of the collection fermentation chamber (201). A stirring shaft (206) is installed at the output end of the stirring motor (205) and passes through the collection fermentation chamber (201) and the deep electric auxiliary heating fermentation tank (202). A stirring rod (207) is provided inside both the collection fermentation chamber (201) and the deep electric auxiliary heating fermentation tank (202). The stirring rod (207) is fixedly connected to the outer surface of the stirring shaft (206). A guide pipe (204) is installed between the collection fermentation chamber (201) and the deep electric auxiliary heating fermentation tank (202). A scraper rod (208) is provided at the bottom of the collection fermentation chamber (201). The scraper rod (208) is fixedly connected to the outer surface of the stirring shaft (206). A stop valve (209) is installed in the middle of the guide pipe (204).

8. The integrated kitchen waste collection and treatment equipment according to claim 7, characterized in that: The bottom end of the deep electric auxiliary heating fermentation tank (202) and the feed end of the screw dewatering machine (203) are equipped with the same stop valve (209). The end of the screw dewatering machine (203) is equipped with a slag discharge pipe (15). The bottom of the screw dewatering machine (203) is equipped with a filter pipe (6). The other end of the filter pipe (6) is connected to the sedimentation tank (301).

9. The integrated kitchen waste collection and treatment equipment according to claim 8, characterized in that: An overflow pipe (305) is installed between the sedimentation tank (301), the first fermentation tank (302), and the second fermentation tank (303). An oil extraction pipe (304) for collecting floating oil is installed at the top of the sedimentation tank (301). An outlet pipe (306) is installed at the end of the second fermentation tank (303). A sludge pipe (5) is installed between the bottom of the sedimentation tank (301) and the collection fermentation chamber (201). A sludge pump (16) is installed on the outer surface of the sludge pipe (5). A water supply pipe (17) is installed at the bottom of the first fermentation tank (302). A three-way valve (18) is installed between the water supply pipe (17) and the bottom of the sludge pipe (5).

10. The application of the integrated kitchen waste collection and treatment equipment according to any one of claims 1-9, wherein the integrated kitchen waste collection and treatment equipment is applied to the treatment of kitchen waste in residential buildings.

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