A kitchen waste treatment system and treatment method

Abstract

The invention discloses a kitchen waste treatment system and treatment method, comprising a conveyor belt for conveying kitchen waste from bottom to top, a grinder is arranged below the top of the conveyor belt, a grease trap for separating oil and water is arranged below the bottom of the conveyor belt, the grease trap is connected to an oil tank, the oil separated by the grease trap enters the oil tank, and the oil tank is connected to a discharge pipe through a pump; it also comprises a press for squeezing liquid, the inlet end of the press is a discharge port, the liquid squeezed by the press is discharged from the discharge port, and the remaining residue is discharged from the residue discharge port; the discharge end of the grinder is connected to a slurry tank, the slurry tank and the grease trap are both connected to the discharge port of the press through a pump, and the discharge port of the press is connected to the discharge pipe. The invention is used to solve the problem that solid and liquid are mixed in kitchen waste in the prior art and cannot be effectively automatically treated, and realizes the purpose of quickly treating kitchen waste and efficiently separating solid and liquid waste therein.

Description

Technical Field

[0001] The present invention relates to the field of restaurant kitchen waste, and in particular to a restaurant kitchen waste treatment system and treatment method. Background Art

[0002] Kitchen waste, commonly known as swill, also known as swill, and swill, is mainly divided into catering waste and kitchen waste according to its source. The former is produced from the leftovers of restaurants, canteens and other catering industries, and has the characteristics of large production volume, multiple sources and wide distribution. The latter mainly refers to the scraps discarded by residents in daily cooking. Kitchen waste is the domestic waste generated by residents in the process of daily consumption. It is very easy to rot and deteriorate, emit bad odors, and spread bacteria and viruses. The main components of kitchen waste include rice and flour food residues, vegetables, animal and vegetable oils, meat and bones, etc. From the chemical composition, there are starch, cellulose, protein, lipids and inorganic salts. The main characteristics of kitchen waste are rich organic matter content, high water content, and easy to rot. Its properties and odor will have a bad impact on environmental hygiene, and it is easy to breed pathogenic microorganisms, mycotoxins and other harmful substances. Therefore, kitchen waste is very harmful to the environment and people, and is an important source of pollution in the urban environment. In the prior art, there are devices for automatically lifting and dumping garbage cans, such as those installed on recycling vehicles for municipal garbage cans in cities. Such devices can be used in the treatment of kitchen garbage cans to reduce manpower consumption. However, the kitchen garbage after dumping is mixed with solid and liquid, and still cannot be effectively automatically treated. Summary of the invention

[0003] The purpose of the present invention is to provide a restaurant kitchen waste treatment system and treatment method to solve the problem in the prior art that solid and liquid are mixed in the restaurant kitchen waste and cannot be effectively and automatically treated, so as to achieve the purpose of quickly treating the restaurant kitchen waste and efficiently separating the solid and liquid waste therein.

[0004] The present invention is achieved through the following technical solutions:

[0005] A kitchen waste treatment system comprises a conveyor belt for conveying kitchen waste from bottom to top, a grinder is arranged below the top end of the conveyor belt, a grease trap for separating oil and water is arranged below the bottom end of the conveyor belt, the grease trap is connected to an oil tank, the oil separated by the grease trap enters the oil tank, and the oil tank is connected to a discharge pipe through a pump; further comprising a press for squeezing liquid, the inlet end of the press is a discharge port, the outlet end of the press is a discharge port and a residue discharge port, the liquid squeezed by the press is discharged from the discharge port, and the remaining residue is discharged from the residue discharge port; the discharge end of the grinder is connected to a slurry tank, the slurry tank and the grease trap are both connected to the discharge port of the press through a pump, and the discharge port of the press is connected to the discharge pipe.

[0006] In view of the problem that the solid and liquid in the food waste in the prior art are mixed and cannot be effectively and automatically processed, the present invention proposes a food waste processing system, including a conveyor belt for conveying food waste from bottom to top, wherein the solid waste moves upward along the conveyor belt, and the liquid waste flows downward into the grease trap, and the solid waste falls into the grinder from the top of the conveyor belt, thereby realizing the solid-liquid separation of the food waste. The liquid waste entering the grease trap contains oil and water, and is automatically settled and stratified in the grease trap, with the oil on the top and the water on the bottom, thereby realizing the oil-water separation. The oil floating on the upper liquid surface inside the grease trap enters the oil tank, and when there is a lot of oil in the oil tank, the oil is pumped to the drain pipe for discharge through a pump. The solid food waste entering the grinder is ground by the grinder. The grinder is a prior art. The existing grinder can be used to grind the food waste into slurry. The slurry is discharged into the slurry tank, and then the slurry is pumped to the discharge port of the press by a corresponding pump. The slurry passes through the press to squeeze out the water therein. The liquid squeezed out by the press is discharged to the discharge pipe through the discharge port for discharge, and the residue remaining in the press is discharged through the discharge port. The staff only needs to collect the residue discharged from the discharge port in a unified manner. The residue can be used to produce fertilizers, feed, etc. In addition, the grease trap is also connected to the discharge port of the press by a pump. Therefore, when the liquid level in the grease trap is too high, the water is pumped to the press by the corresponding pump, and the solid residue that accidentally falls into the grease trap can be pumped to the press for treatment. The solid residue must be located below the oil layer in the grease trap. Therefore, the present invention ensures that all garbage is fully treated through the stratification of the grease trap to avoid omissions in the garbage treatment process. The present invention avoids incomplete treatment of kitchen waste, solves the problem in the prior art that solid and liquid wastes are mixed together and cannot be effectively separated, and further squeezes and deliquates the solid waste after being ground by a grinder, thereby significantly reducing the liquid content of the residue finally obtained.

[0007] The conveyor belt is a mesh belt driven by a motor to rotate, and also includes a spray device for washing the mesh belt. The mesh belt must have holes to facilitate the liquid to drip directly through the conveyor belt into the grease trap. The spray device is used to wash the mesh belt to prevent residue from adhering. The spray device can wash the surface of the mesh belt from the outside, and can also include washing the mesh belt from the inside to the outside from the inside of the mesh belt that is wound in a circle. Preferably, the surface of the conveyor belt is provided with evenly distributed small holes, and the liquid garbage flows downward into the grease trap through the small holes on the surface of the conveyor belt and the surrounding partitions.

[0008] A number of partitions are arranged in the grease trap, and notches are arranged on the partitions; openings of equal height are arranged on the surfaces facing each other of the grease trap and the oil tank, and the oil in the grease trap enters the oil tank through the openings; a sensor of equal height to the opening is arranged in the grease trap, and the sensor is used to monitor whether the liquid at the height of the opening in the grease trap is oil or water; if the sensor detects that the liquid at the height of the opening in the grease trap is water, the liquid in the grease trap is pumped to the inlet end of the press through the corresponding pump. The partition is used to slow down the flow rate of the liquid entering the grease trap, so that the liquid can be more fully stratified and settled in the grease trap, wherein the notches are arranged to facilitate the liquid to pass through the partitions, so that the areas on both sides of the adjacent partitions remain connected. A sensor of equal height to the opening is arranged in the grease trap, and the sensor is used to monitor whether the liquid at the height of the opening in the grease trap is oil or water, which can be achieved by using existing oil level sensors, wetting sensors, etc. If the sensor detects that the liquid at the opening height in the grease trap is water, the surface water level is too high. At this time, in order to prevent water from entering the oil tank, the water at the bottom of the grease trap is pumped to the inlet end of the press through the corresponding pump for treatment. After being squeezed by the press, the water can be discharged from the drain port of the press.

[0009] The press includes a screw conveying shaft, a filter screen is wrapped around the screw conveying shaft, and the outer surface of the filter screen is an outer shell. A liquid discharge port is arranged on the outer shell, and the feed port is connected with the inner space of the filter screen. A pressure plate is sleeved on the tail of the screw conveying shaft along the conveying direction, and the pressure plate is pressed against the end of the outer shell by a first elastic member. The pressure plate blocks one end of the outer shell, and also includes a pressure regulating mechanism for adjusting the elastic force of the first elastic member.

[0010] The slurry of kitchen waste after being ground by a grinder contains a large amount of water and solid residue. The present invention proposes a squeezer for squeezing liquid from kitchen waste slurry. A circle of filter screen is arranged in the shell, and a spiral conveying shaft is arranged in the filter screen. The spiral conveying shaft is the prior art in the screw conveyor, that is, a continuous spiral protrusion is arranged on the rotating shaft, and the material is continuously conveyed forward by the rotation of the spiral protrusion. It is used in this application to convey the kitchen waste slurry after being ground by the grinder. The end of the shell close to the pressing plate is the outlet end, and the end away from the pressing plate is the inlet end. The pressure of the first elastic member on the pressing plate is adjustable. When this scheme is used specifically, the slurry enters the internal space of the filter screen from the feed port, and the slurry is continuously conveyed to the tail direction by the spiral conveyor. Due to the existence of the pressing plate, the slurry gradually accumulates in the filter screen, and the liquid in the slurry is squeezed out and discharged into the space between the filter screen and the shell through the filter screen, and then discharged from the drainage port on the shell. When the slurry accumulates too much and the pressure is too high, the thrust of the slurry on the pressure plate exceeds the elastic force of the first elastic member on the pressure plate. At this time, the solid residue pushes the pressure plate open under the push of the spiral, and the dehydrated residue is discharged from the tail end of the spiral conveyor shaft. In the present application, the elastic force provided by the first elastic member on the pressure plate is adjustable, so the user can adjust the elastic force of the first elastic member as needed. The greater the pressure applied by the first elastic member to the pressure plate, the less likely the pressure plate will be pushed open, and thus the better the squeezing and separation effect of the liquid in the slurry. This solution solves the problem in the prior art that the slurry of food waste after being ground by a grinder contains a large amount of water and solid particles, which is not convenient for direct recycling, and achieves the purpose of squeezing and separating the liquid and solid in the slurry and reducing the moisture content of the residue. During operation, the spiral conveyor shaft can be driven to rotate around its own axis using any existing technology.

[0011] Both ends of the shell along the axial direction are fixed with mounting plates, the screw conveying shaft passes through the two mounting plates, and the pressing plate is pressed on one mounting plate; the two mounting plates are fixedly connected by a plurality of screws, and the screws are located outside the filter screen and inside the shell. The two ends of the shell are blocked by the two mounting plates. A plurality of screws pass through the two mounting plates at the same time, and the two ends of the screws are fastened by nuts, so that the shell, the filter screen, etc. can be fastened between the two mounting plates.

[0012] The inlet joint and the outlet joint are fixed to the inlet end and the outlet end of the outer shell along the conveying direction of the spiral conveying shaft, respectively. The inlet joint and the outlet joint are respectively located on the outer sides of the corresponding mounting plates. The two ends of the spiral conveying shaft pass through the inlet joint and the outlet joint respectively. The discharge port is connected with the inlet joint, and the pressure plate is pressed by the first elastic member on the outer end of the outlet joint. In this scheme, an inlet joint and an outlet joint are provided, and the outer side of the mounting plate refers to the side of any mounting plate away from the direction where the other mounting plate is located. The connection with the inside of the outer shell is achieved through the inlet joint and the outlet joint, so a through hole will inevitably be provided on the mounting plate for the spiral conveying shaft to pass through. In this scheme, the corresponding spiral conveying shafts in the outer shell and the inlet joint are provided with spiral protrusions that can be transmitted, so that the slurry is gradually transported forward by the spiral conveying shaft after entering the inlet joint from the discharge port.

[0013] Preferably, the pressure regulating mechanism comprises a plurality of guide rods fixed on the outlet joint, the long axis of the guide rods is parallel to the axis of the screw conveying shaft, the pressing plate is surrounded by the plurality of guide rods, the outer side of the pressing plate is slidably matched with the inner side of each guide rod, the first elastic member is sleeved on the screw conveying shaft, the part of the screw conveying shaft extending out of the outlet joint is provided with a thread, a nut is connected to the thread, and the first elastic member is located between the nut and the pressing plate. The guide rod is used to guide the pressing plate, the pressing plate is surrounded by the plurality of guide rods, the outer side of the pressing plate is slidably matched with the inner side of each guide rod, so that when the pressing plate is pushed open, it is limited in the plurality of guide rods and can only move along the long axis direction of the guide rod, ensuring the stability of the pressing plate structure. When the pressing plate is pushed open and the slurry is gradually discharged, under the action of the first elastic member, the pressing plate will cover the end of the outlet joint again, and the pressing plate will also be guided by the guide rod when it is reset, ensuring the stable movement of the pressing plate. By turning the nut, different pressures can be applied to the first elastic member through the nut, thereby changing the elastic force of the first elastic member on the pressing plate.

[0014] Preferably, the first elastic member is a spring.

[0015] Preferably, it also includes an end cover plate facing the pressure plate, the end of the guide rod away from the housing is fixedly connected to the end cover plate, and the screw conveying shaft is connected to the end cover plate via a bearing. Even if the tail end of the screw conveying shaft along the conveying direction is connected to the end cover plate via a bearing, the screw conveying shaft is ensured to rotate stably.

[0016] Preferably, the filter screen is arranged on a cylindrical rigid frame. The rigid frame facilitates the installation of the filter screen and also improves the overall structural strength of the filter screen, thereby preventing the filter screen from being easily squeezed and deformed by the internal slurry.

[0017] It also includes a dumping system, which includes two sets of lifting rails facing each other, a trash can chassis matching the lifting rails, and a lifting mechanism for driving the trash can chassis to move on the lifting rails, the lifting rails include a vertical rail and a turning rail, the vertical rail is vertically distributed, the lower part of the turning rail is vertically distributed, and the upper part is turned to a horizontal distribution through a smooth curve; the trash can chassis is connected between the two sets of lifting rails, and roller one matching the vertical rail and roller two matching the turning rail are arranged on both sides of the trash can chassis, and the roller two is located above the roller one.

[0018] The chassis of the trash can is used to carry and clamp the trash can, the lifting mechanism is used to lift the chassis and the trash can at the same time, and the lifting track is used to connect with the chassis of the trash can. The above structures are all existing technologies, and those skilled in the art can use the chassis and lifting mechanisms in the existing trash can dumping system to achieve them. This solution is to set two lifting tracks, one of which is a vertical track distributed vertically, and the other is a turning track. The lower part of the turning track is also vertical, and the upper part is turned to a horizontal distribution through a smooth curve, so as to facilitate the turning of the trash can. The turning track is located on the side of the vertical track close to the direction of the support frame. Roller 1 matching the vertical track and roller 2 matching the turning track are set on both sides of the trash can chassis, and roller 2 is located above roller 1; the dumping prevention structure is located in front of the upper horizontal section of the turning track. When the lifting mechanism lifts the chassis of the trash can upward, roller one moves in the vertical track and roller two moves on the steering track. In the initial stage of lifting, roller one and roller two are both vertically upward. When lifted to the upper smooth curve section of the steering track, roller two starts to turn, driving the chassis of the trash can to gradually rotate. At this time, the trash can gradually tilts and flips toward the support frame. The total height of the vertical track is higher than the height of the steering track. When the trash can is lifted to the top, the front end of the trash can is located at the height of the steering track, and the rear end of the trash can is located at the upper position of the vertical track. The front of the trash can is low and the back is high, so the dumping operation of the trash can can be realized.

[0019] An anti-slip mechanism is arranged in front of the upper horizontal section of the turning track, and the anti-slip mechanism includes two side plates located in the dumping direction of the trash can, a support frame is rotatably connected between the two side plates, and also includes a second elastic member acting on the support frame; when the trash can dumps, the trash can presses on the support frame to rotate the support frame and the second elastic member is compressed or stretched.

[0020] In the prior art, there is a risk of falling off when the garbage can is automatically dumped, and it is easy to be blocked by garbage, making it inconvenient to reset. This solution proposes a dumping anti-slip structure for kitchen garbage cans, in which two side panels are set in the dumping direction of the garbage can, and the support frame is rotatably connected between the two side panels, and the second elastic member provides elastic force to the support frame. When the garbage can is dumped, the open end of the garbage can is pressed on the support frame, so that the support frame rotates around the hinge point between the side panels. At this time, the force applied to the support frame must be transmitted to the second elastic member, so that the elastic member is compressed or stretched. After the second elastic member is elastically deformed, an elastic reset force is generated, and the reset force reacts on the support frame. In the process of dumping garbage from the garbage can, the support frame always maintains support for the open end of the garbage can, which can prevent it from slipping due to excessive weight, and significantly improve the stability of the garbage can during dumping. And when the garbage is dumped and the garbage can is reset, the elastic reset force of the second elastic member can assist the reset of the garbage can through the support frame, and overcome the small-scale garbage blocking through the elastic reset force, so as to facilitate the smooth reset of the garbage can and improve the reset stability of the garbage can. In addition, the second elastic member can also ensure that after the garbage can is separated from the support frame, the support frame can automatically reset to the initial position to prepare for the dumping of the next garbage can. This solution has a simple structure and solves the problem in the prior art that there is a risk of the garbage can falling off when it is automatically dumped, and it is easy to be blocked by garbage, resulting in inconvenience in reset, and achieves the purpose of preventing the garbage can from falling off and improving the reset stability.

[0021] Preferably, it also includes a back plate fixed between the two side plates, the back plate is located on the side of the support frame away from the direction of the trash can, and a nozzle facing the direction of the trash can is arranged on the back plate. When the trash can is dumped downward from the open end, the back plate can provide a barrier to prevent the trash from being scattered everywhere, so that the trash falls downward from the area surrounded by the two side plates and the back plate. In addition, a nozzle is arranged on the back plate, and the spraying direction of the nozzle is toward the direction of the trash can, that is, toward the direction of the support frame. When the open end of the trash can is pressed on the support frame, the nozzle can be directed toward the inside of the trash can. After the garbage is dumped, there is generally some garbage stuck inside the trash can that is not easy to fall off. At this time, water is sprayed into the trash can through the nozzle, and these kitchen wastes that are not easy to fall off are washed away by the water flow, so as to facilitate the complete completion of garbage dumping and reduce garbage residue. Preferably, the connector of the nozzle is located on the side of the back plate away from the support frame, and the nozzle passes through the back plate to facilitate water supply to the nozzle through a water pipe; in addition, a solenoid valve or other valve can be preferably provided on the connector of the nozzle to facilitate control of the nozzle.

[0022] A method for treating kitchen waste comprises the following steps:

[0023] (a) dumping the food waste onto a conveyor belt that is transported upward from bottom to top, the food waste moves along the conveyor belt and falls into the grinder from the top of the conveyor belt, and the liquid in the food waste drips into the grease trap from the bottom of the conveyor belt;

[0024] (b) The food waste entering the grinder is ground into slurry and enters the slurry tank. The slurry is pumped from the slurry tank to the discharge port of the press by a pump. The press squeezes the liquid in the slurry, and the squeezed liquid enters the discharge pipe from the discharge port and is discharged. The remaining residue is discharged from the slag discharge port.

[0025] (c) The liquid entering the grease trap is separated into oil and water layers in the grease trap, and the oil layer floating on the top enters the oil tank through the opening; the oil in the oil tank is pumped to the drain pipe and discharged; when the water level in the grease trap rises to the height of the opening, the water is pumped from the bottom of the grease trap to the discharge port of the press by a pump.

[0026] The method avoids incomplete treatment of kitchen waste, solves the problem in the prior art that solid and liquid waste are mixed together and cannot be effectively separated, and further squeezes and deliquates the solid waste after being ground by a grinder, significantly reducing the liquid content of the final residue.

[0027] Furthermore, a pressure plate is provided at the slag discharge port of the press, and the pressure plate is pressed at the slag discharge port of the press by a first elastic member, and the elastic force of the first elastic member is adjustable.

[0028] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0029] 1. The present invention provides a restaurant kitchen waste treatment system and treatment method, which ensures that all garbage is fully treated and avoids omissions in the garbage treatment process. The present invention avoids incomplete treatment of restaurant kitchen waste, solves the problem that solid and liquid garbage are mixed together and cannot be effectively separated in the prior art, and squeezes and deliquifies the solid garbage after being ground by the grinder, which significantly reduces the liquid content of the final residue.

[0030] 2. The present invention provides a kitchen waste treatment system and treatment method. The user can adjust the elastic force of the first elastic member in the press as needed. The greater the pressure applied by the first elastic member to the pressing plate, the less likely the pressing plate will be pushed open. Therefore, the squeezing and separation effect of liquids such as grease in the slurry is better. This solution solves the problem in the prior art that the slurry after kitchen waste is ground by a grinder contains a large amount of grease and is not convenient for direct recycling, and achieves the purpose of squeezing and separating liquids such as grease in the slurry and reducing the oil content and water content of the residue.

[0031] 3. In the present invention, a kitchen waste treatment system and treatment method, during the process of dumping garbage into the garbage can, the support frame always maintains support for the open end of the garbage can, which can prevent the garbage can from sliding due to excessive weight, and significantly improve the stability of the garbage can during dumping. When the garbage can is reset after dumping, the elastic reset force of the second elastic member can assist the reset of the garbage can through the support frame, and overcome the small-scale garbage jam through the elastic reset force, so as to facilitate the smooth reset of the garbage can and improve the reset stability of the garbage can. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0033] Figure 1 It is a schematic diagram of the external structure of a specific embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure in one axial direction after removing the outer shell of a specific embodiment of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure in another axial direction after removing the outer shell of a specific embodiment of the present invention;

[0036] Figure 4 To remove Figure 2 Schematic diagram of the structure behind each frame;

[0037] Figure 5 for Figure 4 A schematic diagram of the structure from another perspective;

[0038] Figure 6 It is a schematic structural diagram of an axial direction of a grease trap in a specific embodiment of the present invention;

[0039] Figure 7 It is a structural schematic diagram of the grease trap in another axial direction in a specific embodiment of the present invention;

[0040] Figure 8 It is a structural schematic diagram of the oil tank in a specific embodiment of the present invention;

[0041] Fig. 9 It is a structural schematic diagram of a press in a specific embodiment of the present invention;

[0042] Fig.10 It is a schematic diagram of the structure of the squeezer without the shell in a specific embodiment of the present invention;

[0043] Fig.11 is a cross-sectional view of a press in a specific embodiment of the present invention;

[0044] Fig.12It is a structural schematic diagram of a dumping system in a specific embodiment of the present invention;

[0045] Fig.13 A side view of a dumping system in a specific embodiment of the present invention;

[0046] Fig.14 It is a structural schematic diagram of an anti-slip mechanism in an axial direction in a specific embodiment of the present invention;

[0047] Fig.15 It is a structural schematic diagram of another axial direction of the anti-slip mechanism in a specific embodiment of the present invention;

[0048] Fig.16 It is a working schematic diagram of the anti-slip mechanism in a specific embodiment of the present invention;

[0049] Fig.17 It is a schematic diagram of a lifting track in a specific embodiment of the present invention.

[0050] Marks and corresponding parts names in the attached drawings:

[0051] 1-screw conveyor shaft, 2-filter screen, 3-housing, 4-feeding port, 5-pressing plate, 6-first elastic member, 7-mounting plate, 8-drainage port, 9-screw, 10-inlet joint, 11-rigid skeleton, 12-bearing, 13-guide rod, 14-outlet joint, 15-nut, 16-end cover plate, 17-side plate, 18-connecting rod three, 19-second elastic member, 20-connecting rod one, 21-connecting rod two, 22-connecting rod four, 23-back plate, 24-nozzle, 25-trash can chassis, 26-vertical track, 27-steering track, 28-roller one, 29-roller two, 30-opening, 31-conveyor belt, 32-grinder, 33-grease trap, 34-oil tank, 35-drainage pipe, 36-slurry box, 37-press, 38-partition, 39-notch. DETAILED DESCRIPTION

[0052] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0053] Embodiment 1:

[0054] A kitchen waste treatment system, such as Figure 1-Figure 17As shown, it includes a conveyor belt 31 for conveying food waste from bottom to top, a grinder 32 is arranged below the top end of the conveyor belt 31, and a grease trap 33 for separating oil and water is arranged below the bottom end of the conveyor belt 31, the grease trap 33 is connected to an oil tank 34, and the oil separated by the grease trap 33 enters the oil tank 34, and the oil tank 34 is connected to a discharge pipe 35 through a pump; it also includes a press 37 for squeezing liquid, the inlet end of the press 37 is a discharge port 4, and the outlet end of the press 37 is a discharge port 8 and a slag discharge port, the liquid squeezed by the press 37 is discharged from the discharge port, and the remaining residue is discharged from the slag discharge port; the discharge end of the grinder 32 is connected to a slurry tank 36, and the slurry tank 36 and the grease trap 33 are both connected to the discharge port of the press 37 through a pump, and the discharge port of the press 37 is connected to the discharge pipe 35.

[0055] Embodiment 2:

[0056] A kitchen waste treatment system, based on Example 1, wherein the conveyor belt 31 is a mesh belt driven by a motor to rotate, and further comprises a spray device for washing the mesh belt. A plurality of partitions 38 are arranged in the grease trap 33, and notches 39 are arranged on the partitions 38; openings 30 of the same height are arranged on the surfaces facing each other of the grease trap 33 and the oil tank 34, and the oil in the grease trap 33 enters the oil tank 34 through the openings 30; a sensor of the same height as the opening 30 is arranged in the grease trap 33, and the sensor is used to monitor whether the liquid in the grease trap 33 at the height of the opening 30 is oil or water; if the sensor detects that the liquid in the grease trap 33 at the height of the opening 30 is water, the liquid in the grease trap 33 is pumped to the inlet end of the press 37 by a corresponding pump.

[0057] Embodiment 3:

[0058] A kitchen waste treatment system, based on any of the above embodiments, the squeezer 37 includes a screw conveying shaft 1, a filter screen 2 is surrounded by the screw conveying shaft 1, the filter screen 2 is outside the outer shell 3, a liquid discharge port 8 is arranged on the outer shell 3, and the feed port 4 is connected with the inner space of the filter screen 2. A pressure plate 5 is sleeved at the tail of the screw conveying shaft 1 along the conveying direction, and the pressure plate 5 is pressed at the end of the outer shell 3 by the first elastic member 6. The pressure plate 5 blocks one end of the outer shell 3, and also includes a pressure regulating mechanism for adjusting the elastic force of the first elastic member 6. Both ends of the outer shell 3 along the axial direction are fixed with mounting plates 7, the screw conveying shaft 1 passes through two mounting plates 7, and the pressure plate 5 is pressed on one mounting plate 7; the two mounting plates 7 are fixedly connected by a plurality of screws 9, and the screws 9 are located outside the filter screen 2 and inside the outer shell 3. The inlet joint 10 and the outlet joint 14 are fixed to the inlet end and the outlet end of the shell 3 along the conveying direction of the spiral conveying shaft 1, respectively. The inlet joint 10 and the outlet joint 14 are respectively located on the outside of the corresponding mounting plate 7. The two ends of the spiral conveying shaft 1 pass through the inlet joint 10 and the outlet joint 14, respectively. The discharge port 4 is connected to the inlet joint 10, and the pressing plate 5 is pressed and held on the outer end of the outlet joint 14 by the first elastic member 6.

[0059] Preferably, the two mounting plates 7 are fixedly connected by a plurality of screw rods 9, and the screw rods 9 are located outside the filter screen 2 and inside the housing 3. The pressure regulating mechanism includes a plurality of guide rods 13 fixed on the outlet joint 14, and the long axis of the guide rods 13 is parallel to the axis of the screw conveying shaft 1. The pressure plate 5 is surrounded by the plurality of guide rods 13, and the outer side of the pressure plate 5 is slidably matched with the inner side of each guide rod 13. The first elastic member 6 is sleeved on the screw conveying shaft 1, and the portion of the screw conveying shaft 1 extending outside the outlet joint 14 is provided with a thread, and a nut 15 is connected to the thread, and the first elastic member 6 is located between the nut 15 and the pressure plate 5. The first elastic member 6 is a spring. It also includes an end cover plate 16 facing the pressure plate 5, and the end of the guide rod 13 away from the direction of the housing 3 is fixedly connected to the end cover plate 16, and the screw conveying shaft 1 and the end cover plate 16 are connected through a bearing 12. In this embodiment, the elastic force provided by the first elastic member 6 to the pressure plate can be adjusted by the nut 15. The user can adjust the elastic force of the first elastic member 6 as needed. The greater the pressure applied by the first elastic member 6 to the pressure plate, the less likely the pressure plate will be pushed open. Therefore, the better the squeezing and separation effect on liquids such as grease in the slurry.

[0060] Embodiment 4:

[0061] A kitchen waste treatment system, based on any of the above embodiments, further includes a dumping system, the dumping system includes two sets of lifting rails facing each other, a trash can chassis 25 matching the lifting rails, and a lifting mechanism for driving the trash can chassis 25 to move on the lifting rails, the lifting rails include a vertical rail 26 and a turning rail 27, the vertical rail 26 is vertically distributed, the lower part of the turning rail 27 is vertically distributed, and the upper part is turned to a horizontal distribution through a smooth curve; the trash can chassis 25 is connected between the two sets of lifting rails, and rollers 28 matching the vertical rail 26 and rollers 29 matching the turning rail 27 are arranged on both sides of the trash can chassis 25, and the rollers 29 are located above the rollers 28. An anti-slip mechanism is arranged in front of the upper horizontal section of the turning track 27, and the anti-slip mechanism includes two side panels 17 located in the dumping direction of the trash can, a support frame is rotatably connected between the two side panels 17, and also includes a second elastic member 19 acting on the support frame; when the trash can is dumped, the trash can is pressed on the support frame to rotate the support frame and the second elastic member 19 is compressed or stretched.

[0062] A preferred embodiment is: the support frame includes a connecting rod 1 20 and a connecting rod 21, the connecting rod 1 20 and the connecting rod 21 are fixedly connected by a connecting rod 3 18, the connecting rod 1 20 is located below the connecting rod 21, and the connecting rod 21 is closer to the direction of the trash can than the connecting rod 1 20; the two ends of the connecting rod 1 20 are rotatably connected to the two side panels 17 respectively.

[0063] Among them, connecting rod 1 20, connecting rod 2 21 and two connecting rods 3 18 are connected to form a square frame structure. Both ends of the connecting rod 1 20 are fixed with connecting rod 4 22 extending downward, and one end of the second elastic member 19 is fixed to the inner wall of the side plate 17, and the other end is fixed to the connecting rod 4 22. The connecting rod 4 22 is perpendicular to the connecting rod 1 20, and the connection point between the second elastic member 19 and the connecting rod 4 22 is higher than the connection point between the second elastic member 19 and the inner wall of the side plate 17. It also includes a back plate 23 fixed between the two side plates 17, and the back plate 23 is located on the side of the support frame away from the direction of the trash can, and a nozzle 24 facing the direction of the trash can is arranged on the back plate 23.

[0064] Embodiment 5:

[0065] A method for treating kitchen waste comprises the following steps:

[0066] (a) dumping the food waste onto a conveyor belt 31 that is transported upward from bottom to top, the food waste moves along the conveyor belt 31 and falls from the top of the conveyor belt 31 into the grinder 32, and the liquid in the food waste drips from the bottom of the conveyor belt 31 into the grease trap 33;

[0067] (b) The food waste entering the grinder 32 is ground into slurry and enters the slurry tank 36. The slurry is pumped from the slurry tank 36 to the discharge port 4 of the press 37 by a pump. The press 37 squeezes the liquid in the slurry. The squeezed liquid enters the discharge pipe 35 from the discharge port 8 and is discharged. The remaining residue is discharged from the slag discharge port.

[0068] (c) The liquid entering the grease trap 33 is separated into oil and water layers in the grease trap 33, and the oil layer floating on the top enters the oil tank 34 through the opening 30; the oil in the oil tank 34 is pumped to the drain pipe 35 for discharge; when the water level in the grease trap 33 rises to the height of the opening 30, the water is pumped from the bottom of the grease trap 33 to the discharge port 4 of the press 37 by a pump.

[0069] Preferably, a pressing plate 5 is provided at the slag discharge port of the press 37 , and the pressing plate 5 is pressed at the slag discharge port of the press 37 by a first elastic member 6 , and the elastic force of the first elastic member 6 is adjustable.

[0070] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A kitchen waste treatment system, comprising a conveyor belt (31) for conveying kitchen waste from bottom to top, characterized in that: A grinder (32) is disposed below the top end of the conveyor belt (31); a grease trap (33) for separating oil and water is disposed below the bottom end of the conveyor belt (31); the grease trap (33) is connected to an oil tank (34); the oil separated by the grease trap (33) enters the oil tank (34); the oil tank (34) is connected to a drain pipe (35) via a pump; and a press (37) for squeezing liquid is also included; the inlet end of the press (37) is a lower The feed port (4) is connected to the press (37), and the outlet end of the press (37) is a liquid discharge port (8) and a slag discharge port. The liquid squeezed out by the press (37) is discharged from the liquid discharge port, and the remaining residue is discharged from the slag discharge port. The discharge end of the grinder (32) is connected to the slurry tank (36). The slurry tank (36) and the oil separator (33) are connected to the feed port of the press (37) through a pump. The liquid discharge port of the press (37) is connected to the liquid discharge pipe (35). It also includes a dumping system, the dumping system including two sets of lifting rails facing each other, a trash can chassis (25) matching the lifting rails, and a lifting mechanism for driving the trash can chassis (25) to move on the lifting rails, the lifting rails including a vertical rail (26) and a turning rail (27), the vertical rail (26) being vertically distributed, the turning rail (27) having a lower portion vertically distributed and an upper portion turned to a horizontal distribution through a smooth curve; the trash can chassis (25) is connected between the two sets of lifting rails, and rollers 1 (28) matching the vertical rail (26) and rollers 2 (29) matching the turning rail (27) are provided on both sides of the trash can chassis (25), and the rollers 2 (29) are located above the rollers 1 (28); An anti-slip mechanism is arranged in front of the upper horizontal section of the turning track (27), the anti-slip mechanism comprising two side plates (17) located in the dumping direction of the trash can, a support frame rotatably connected between the two side plates (17), and a second elastic member (19) acting on the support frame; when the trash can is dumped, the trash can presses on the support frame to rotate the support frame and the second elastic member (19) is compressed or stretched; The support frame comprises a connecting rod 1 (20) and a connecting rod 2 (21), wherein the connecting rod 1 (20) and the connecting rod 2 (21) are fixedly connected via a connecting rod 3 (18), the connecting rod 1 (20) is located below the connecting rod 2 (21), and the connecting rod 2 (21) is closer to the direction where the trash can is located than the connecting rod 1 (20); the two ends of the connecting rod 1 (20) are respectively rotatably connected to the two side plates (17); The connecting rod 1 (20), the connecting rod 2 (21) and the two connecting rods 3 (18) are connected to form a square frame structure; Both ends of the connecting rod one (20) are fixed with connecting rod four (22) extending downward, one end of the second elastic member (19) is fixed to the inner wall of the side plate (17), and the other end is fixed to the connecting rod four (22); the connecting rod four (22) and the connecting rod one (20) are perpendicular to each other, and the connection point between the second elastic member (19) and the connecting rod four (22) is higher than the connection point between the second elastic member (19) and the inner wall of the side plate (17); and the back plate (23) is also included, which is fixed between the two side plates (17), and the back plate (23) is located on the side of the support frame away from the direction of the trash can, and a nozzle (24) facing the direction of the trash can is arranged on the back plate (23).

2. A kitchen waste treatment system according to claim 1, characterized in that: The conveyor belt (31) is a mesh belt driven by a motor to rotate, and also includes a spray device for washing the mesh belt.

3. A kitchen waste treatment system according to claim 1, characterized in that: A plurality of partitions (38) are arranged in the oil separator (33), and notches (39) are arranged on the partitions (38); openings (30) of the same height are arranged on surfaces of the oil separator (33) and the oil tank (34) facing each other, and the oil in the oil separator (33) enters the oil tank (34) through the openings (30); a sensor is arranged in the oil separator (33) at the same height as the opening (30), and the sensor is used to monitor whether the liquid in the oil separator (33) at the height of the opening (30) is oil or water; if the sensor detects that the liquid in the oil separator (33) at the height of the opening (30) is water, the liquid in the oil separator (33) is pumped to the inlet end of the press (37) through a corresponding pump.

4. A kitchen waste treatment system according to claim 1, characterized in that: The press (37) comprises a screw conveying shaft (1), a filter screen (2) is wound around the screw conveying shaft (1), the filter screen (2) is outside a shell (3), a liquid discharge port (8) is arranged on the shell (3), a material discharge port (4) is communicated with the internal space of the filter screen (2), a pressure plate (5) is sleeved on the tail of the screw conveying shaft (1) along the conveying direction, the pressure plate (5) is pressed against the end of the shell (3) by a first elastic member (6), the pressure plate (5) blocks one end of the shell (3), and also comprises a pressure regulating mechanism for regulating the elastic force of the first elastic member (6).

5. A kitchen waste treatment system according to claim 4, characterized in that: Mounting plates (7) are fixed at both ends of the outer shell (3) along the axial direction; the screw conveying shaft (1) passes through two mounting plates (7); and the pressing plate (5) is pressed on one mounting plate (7); the two mounting plates (7) are fixedly connected by a plurality of screw rods (9); and the screw rods (9) are located outside the filter screen (2) and inside the outer shell (3).

6. A kitchen waste treatment system according to claim 4, characterized in that: An inlet joint (10) and an outlet joint (14) are respectively fixed to the inlet end and the outlet end of the housing (3) along the conveying direction of the spiral conveying shaft (1); the inlet joint (10) and the outlet joint (14) are respectively located on the outside of the corresponding mounting plate (7); the two ends of the spiral conveying shaft (1) respectively penetrate the inlet joint (10) and the outlet joint (14); the feed port (4) is connected to the inlet joint (10); and the pressing plate (5) is pressed by the first elastic member (6) to the outer end of the outlet joint (14).

7. A method for treating kitchen waste according to any one of claims 1 to 6, characterized in that: The steps include: (a) dumping food waste onto a conveyor belt (31) that is transported from bottom to top, the food waste moves along the conveyor belt (31) and falls from the top of the conveyor belt (31) into a grinder (32), and liquid in the food waste drips from the bottom of the conveyor belt (31) into a grease trap (33); (b) the food waste entering the grinder (32) is ground into slurry and enters the slurry tank (36). The slurry is pumped from the slurry tank (36) to the discharge port (4) of the press (37) by a pump. The press (37) squeezes liquid in the slurry. The squeezed liquid enters the discharge pipe (35) from the discharge port (8) and is discharged. The remaining residue is discharged from the discharge port; (c) The liquid entering the grease trap (33) is separated into oil and water layers in the grease trap (33), and the oil layer floating on the top enters the oil tank (34) through the opening (30); the oil in the oil tank (34) is pumped to the drain pipe (35) and discharged; when the water level in the grease trap (33) rises to the height of the opening (30), the water is pumped from the bottom of the grease trap (33) to the discharge port (4) of the press (37) by the pump.

8. A method for treating kitchen waste according to claim 7, characterized in that: A pressing plate (5) is provided at the slag discharge port of the press (37), and the pressing plate (5) is pressed at the slag discharge port of the press (37) by a first elastic member (6), and the elastic force of the first elastic member (6) is adjustable.

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