A kitchen organic solid waste treatment apparatus

Abstract

The application discloses a kitchen organic solid waste treatment equipment, and relates to the technical field of kitchen garbage treatment. The kitchen organic solid waste treatment equipment comprises a fermentation barrel, a servo motor arranged at the top of the fermentation barrel, a fermentation inner container arranged in the fermentation barrel and used for storing fermentation materials, and a heating ring piece arranged between the fermentation barrel and the fermentation inner container and in a circular array distribution mode and adhered to the outer wall of the fermentation inner container. The kitchen organic solid waste treatment equipment further comprises a driving rod capable of negative pressure suction of oil liquid on the surface of fermentation liquid, and a stackable layering stirring rod which is sleeved on the driving rod in a sliding mode. The bottom of the driving rod is fixedly connected with a screw rod, and the screw rod is sleeved with an oil liquid extrusion structure used for jacking the layering stirring rod to be folded and extruding oil liquid of kitchen garbage. Through the kitchen organic solid waste treatment equipment, effective recovery and redistribution of oil liquid floating on the surface of fermentation liquid are realized. The recovery efficiency of oil liquid is improved, the stirring efficiency of oil liquid and fermentation liquid is improved, and the decomposition efficiency of kitchen garbage is increased.

Description

Technical Field

[0001] This invention relates to the field of kitchen waste treatment technology, specifically to a kitchen organic solid waste treatment device. Background Technology

[0002] Kitchen organic solid waste treatment equipment uses specially formulated conditioning bacteria and auxiliary materials to ferment materials, enabling them to degrade completely in a short time (e.g., 4 hours), achieving thorough fermentation, maturation, sterilization, and deodorization. At the same time, the equipment also pre-treats the waste through physical means such as crushing, dehydration, and separation to improve the efficiency and effectiveness of biological treatment.

[0003] For example, the workbench and machine for integrated fermentation and drying of kitchen waste disclosed in CN115532772B can achieve the integration and utilization of resources by connecting with existing kitchen utensils during the entire kitchen waste treatment process, and can match the kitchen equipment with the integrated cabinet to improve the utilization rate of resources and the adaptability of the entire equipment in the kitchen. However, it still has certain shortcomings in the fermentation treatment of kitchen waste with a high oil content.

[0004] 1. Kitchen waste often contains varying amounts of oil, which comes from cooking oil and natural oils in the food itself, such as the low oil content in vegetables and the relatively high oil content in meat. Oil has a strong heat absorption and exchange capacity, which means that kitchen waste with different oil contents will have different heat absorption capacity during fermentation. Even the same type of kitchen waste will ferment at different speeds due to the different oil content. This results in a difference in the fermentation rate of kitchen waste in the fermentation tank. When there is both fast-fermenting and slow-fermenting kitchen waste in the fermentation tank, if the fermentation conditions cannot be effectively adjusted and controlled to adapt to this difference, some waste may be processed while others are still in the early stages of fermentation. This not only wastes time and energy, but may also cause hygiene problems such as odor and bacterial growth due to prolonged retention.

[0005] 2. Proper stirring within the fermentation tank (not continuous stirring) is one of the key steps to ensure the smooth progress of the food waste fermentation process. However, traditional stirring methods often face a significant problem when dealing with food waste containing a large amount of moisture and complex components: during stirring, the fermentation liquid, driven by the stirring rod, carries the food waste and forms a vortex following the stirring direction, causing the fermentation liquid and food waste to rotate synchronously. In reality, the food waste and fermentation liquid remain in a relatively static state. Therefore, even if the stirrer works continuously, the decomposition effect of the material is not ideal.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on existing kitchen organic solid waste treatment equipment. Summary of the Invention

[0007] This invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different approach. Specifically, the invention aims to provide a kitchen organic solid waste treatment device that solves the problem mentioned in the background: due to the difficulty in degrading grease, the fermentation rate slows down considerably, and incomplete fermentation may even occur. This uneven fermentation efficiency not only affects the overall efficiency of kitchen waste treatment but may also impact the final drying effect and product quality due to insufficient fermentation of some waste. In severe cases, it may even lead to a decline in the performance or malfunction of the entire treatment system.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a kitchen organic solid waste treatment device, comprising a fermentation tank, a servo motor disposed on the top of the fermentation tank, a fermentation inner liner placed inside the fermentation tank for storing fermentation materials, and heating rings arranged in a circular array between the fermentation tank and the fermentation inner liner and attached to the outer wall of the fermentation inner liner. It also includes a drive rod capable of negatively suctioning oil from the surface of the fermentation liquid, and a stacked stirring rod slidably sleeved on the drive rod. The bottom of the drive rod is fixedly connected to a lead screw, and the lead screw is sleeved with an oil squeezing structure for lifting the stacked stirring rod, folding it up, and squeezing the oil from the kitchen waste.

[0009] Preferably, the oil extrusion structure includes an extrusion mesh for pushing kitchen waste to extrude oil onto the inner wall of the fermentation liner, and a lifting slider fixedly connected to the extrusion mesh at the center and sleeved on a screw to drive the extrusion mesh to rise and deform. The top of the lifting slider is fixedly connected to a top rod distributed in a circular array, and the top of each top rod is fixedly connected to a rotating roller.

[0010] Preferably, the lead screw is provided with first guide rods on both sides for limiting the lifting of the slider, and the bottom of the first guide rod is fixed to the bottom of the fermentation inner liner. The stacked stirring rod has a stacking cavity, and the top of the rotating roller is in contact with the stacking cavity at the bottom of the stacked stirring rod.

[0011] Preferably, the stacked stirring rod consists of a top fixed stirring rod and several stackable sliding stirring rods. The inner wall of the sliding stirring rod is fixedly connected to a stacking slider, and the outer wall of the stacked stirring rod is provided with a stacking groove for the stacking slider to slide. The inner wall of the stacking cavity of the fixed stirring rod is fixedly connected to a limiting slider, and the outer wall of the driving rod is provided with a lifting groove for the limiting slider to slide.

[0012] Preferably, a suction piston is slidably disposed inside the drive rod, and a pressure plate is fixedly connected to the top of the suction piston. Both ends of the pressure plate are exposed outside the drive rod and are in contact with the top of the fixed stirring rod.

[0013] Preferably, the outer wall of the drive rod is provided with a movable groove for the pressure plate to slide, and a second guide rod for guiding the pressure plate to slide is fixedly connected in the movable groove, and a spring is sleeved on the second guide rod.

[0014] Preferably, a draining groove is fixedly connected inside the lead screw, and a liquid suction cavity for sucking oil is formed between the top of the draining groove and the suction piston. An inlet is provided at the bottom of the outer wall of the drive rod, and a one-way valve is provided in both the inlet and the draining groove.

[0015] Preferably, a mesh frame is fixedly connected to the bottom edge of the extrusion mesh, and the mesh frame is connected to the inner wall of the fermentation inner liner. A movable frame is provided on the inner side of the mesh frame, and the movable frame is connected to the top of the extrusion mesh so that the extrusion mesh can be deformed into a trapezoidal cylinder, and the top of the trapezoidal cylinder is arc-shaped so that kitchen waste can be moved to the outside of the extrusion mesh.

[0016] Preferably, the bottom of the lead screw is provided with a drain port for discharging oil.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The fermentation chamber is preheated by heating rings. Then, as the servo motor rotates forward, the stacked stirring rods rotate, causing the lifting slider mounted on the lead screw to move upwards via the first guide rod. This causes the extrusion mesh connected to the lifting slider to extend upwards through the movable frame. Because the bottom edge of the extrusion mesh has a frame fixed to the inner wall of the fermentation chamber, the extrusion mesh deforms into a trapezoidal cylinder with an arc-shaped top. This deformation pushes the kitchen waste outwards, and the deformed mesh then compresses the kitchen waste against the inner wall of the fermentation chamber, squeezing out the oil inside. The squeezed oil floats in the fermentation liquid. At the top, simultaneously, the stacked stirring rod, which is in a lifting state, contacts the pressure plate, causing the pressure plate to drive the suction piston to move upward from the drive rod. The pressure plate, guided and restricted by the second guide rod, squeezes the spring sleeved on the second guide rod. Because a liquid suction cavity is formed between the top of the diversion channel and the suction piston, the suction piston draws the oil floating on the surface of the fermentation liquid into the liquid suction cavity through the liquid inlet. The oil is then guided by the diversion channel into the cavity inside the screw and discharged through the liquid outlet at the bottom of the screw. During this process, the oil is evenly distributed from bottom to top in the fermentation liquid inside the fermentation tank, making the heat exchange efficiency of the oil more evenly distributed in the fermentation tank and improving the fermentation efficiency inside the fermentation tank.

[0019] 2. During the mixing process, the rotating roller, due to its rotatable nature, allows the stacked mixing rod to rotate without being restricted while being pushed and stacked. Subsequently, the squeezed kitchen waste remains stationary, while the stacked mixing rod, which is in the process of mixing, is in a dynamic mixing state. This solves the problem of unsatisfactory mixing effect caused by the relative stillness of the two when the kitchen waste rotates with the fermentation liquid during mixing. This improves the efficiency of oil extrusion from the kitchen waste and the mixing efficiency of the fermentation liquid and kitchen waste, thus increasing the efficiency of kitchen waste decomposition. The deformation and squeezing action of the extrusion mesh not only pushes the kitchen waste to both sides, but also makes its extrusion deformation smaller and finer, which helps the fermentation liquid and kitchen waste to fully contact each other, further improving the fermentation efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall outer casing of the present invention.

[0021] Figure 2 This is a schematic diagram of the overall fermentation inner liner and heating structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the overall internal components of the present invention.

[0023] Figure 4 This is a diagram showing the overall internal components of the present invention in a lifted state.

[0024] Figure 5 This is a schematic diagram of the internal components of the drive rod structure of the present invention.

[0025] Figure 6 This is a schematic diagram showing the connection state between the extruded mesh and the lead screw of the present invention.

[0026] Figure 7 This is a schematic diagram showing the connection state between the drive rod and the pressure plate of the present invention.

[0027] Figure 8 for Figure 5 Enlarged view of the structure at point A.

[0028] Figure 9 for Figure 5 Enlarged view of the structure at point B.

[0029] Figure 10 This is a planar cross-sectional view of the stacked stirring rod of the present invention.

[0030] Figure 11 for Figure 10 Enlarged view of the structure at point C.

[0031] In the diagram: 1. Fermentation tank; 2. Fermentation inner liner; 3. Heating ring; 4. Drive rod; 401. Lifting chute; 402. Liquid inlet; 5. Lead screw; 501. Liquid outlet; 6. Lifting slider; 7. Extrusion mesh; 8. Top rod; 801. Rotating roller; 9. Stacked stirring rod; 901. Stacked chute; 10. Pressure plate; 1001. Suction piston; 11. First guide rod; 12. Second guide rod; 13. Spring; 14. Drainage channel; 15. One-way valve; 16. Limiting slider; 17. Stacked slider. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0033] Please see Figures 1 to 11 The present invention provides a technical solution: a kitchen organic solid waste treatment device, including a fermentation tank 1, a servo motor set on the top of the fermentation tank 1, a fermentation inner liner 2 placed inside the fermentation tank 1 for storing fermentation materials, and heating rings 3 arranged in a circular array between the fermentation tank 1 and the fermentation inner liner 2 and attached to the outer wall of the fermentation inner liner 2. It also includes a drive rod 4 that can negatively pressure suck oil from the surface of the fermentation liquid, and a stacked stirring rod 9 that is slidably sleeved on the drive rod 4 and can be folded up. The bottom of the drive rod 4 is fixedly connected to a lead screw 5, and the lead screw 5 is sleeved with an oil squeezing structure for lifting the stacked stirring rod 9, folding up and squeezing the oil from the kitchen waste.

[0034] The oil extrusion structure includes an extrusion mesh 7 for pushing kitchen waste to extrude oil onto the inner wall of the fermentation liner 2, a lifting slider 6 fixedly connected to the extrusion mesh 7 at the center and sleeved on the screw 5 to drive the extrusion mesh 7 to rise and deform, and a top rod 8 arranged in a circular array fixedly connected to the top of the lifting slider 6, and a rotating roller 801 fixedly connected to the top of each top rod 8.

[0035] The lead screw 5 is provided with first guide rods 11 on both sides for limiting the lifting slider 6, and the bottom of the first guide rod 11 is fixed to the bottom of the fermentation inner liner 2. The stacked stirring rod 9 has a stacking cavity, and the top of the rotating roller 801 is in contact with the bottom stacking cavity of the stacked stirring rod 9.

[0036] The stacked stirring rod 9 consists of a top fixed stirring rod and several retractable sliding stirring rods. The inner wall of the sliding stirring rod is fixedly connected to a stacking slider 17. The outer wall of the stacked stirring rod 9 has a stacking groove 901 for the stacking slider 17 to slide. The inner wall of the retractable cavity of the fixed stirring rod is fixedly connected to a limiting slider 16. The outer wall of the drive rod 4 has a lifting groove 401 for the limiting slider 16 to slide.

[0037] A suction piston 1001 is slidably disposed inside the drive rod 4, and a pressure plate 10 is fixedly connected to the top of the suction piston 1001. Both ends of the pressure plate 10 are exposed outside the drive rod 4 and are in contact with the top of the fixed stirring rod.

[0038] The outer wall of the drive rod 4 is provided with a movable groove for the pressure plate 10 to slide, and a second guide rod 12 for guiding the pressure plate 10 to slide is fixedly connected in the movable groove. A spring 13 is sleeved on the second guide rod 12.

[0039] The lead screw 5 is fixedly connected to a flow channel 14, and the top of the flow channel 14 and the suction piston 1001 form a suction cavity for sucking oil. The bottom of the outer wall of the drive rod 4 is provided with a liquid inlet 402, and both the liquid inlet 402 and the flow channel 14 are provided with a one-way valve 15.

[0040] A mesh frame is fixedly connected to the bottom edge of the extrusion mesh 7, and the mesh frame is connected to the inner wall of the fermentation inner liner 2. A movable frame is provided on the inner side of the mesh frame, and the movable frame is connected to the top of the extrusion mesh 7 so that the extrusion mesh 7 can be deformed into a trapezoidal cylinder, and the top of the trapezoidal cylinder is arc-shaped so that kitchen waste can be moved to the outside of the extrusion mesh 7.

[0041] The bottom of the lead screw 5 is provided with a drain port 501 for discharging oil.

[0042] Working Principle: When using this kitchen organic solid waste treatment equipment, firstly, kitchen waste and fermentation liquid are injected into the fermentation inner tank 2 respectively. The heating ring 3 generates heat to preheat and ferment the kitchen waste in the fermentation inner tank 2. Then, the servo motor is started at a timer interval of 30 minutes. When the servo motor rotates forward, the stacked stirring rod 9 rotates, and the lifting slider 6, which is sleeved on the lead screw 5, moves from bottom to top under the guidance of the first guide rod 11. Then, the extrusion mesh 7 connected to the lifting slider 6 extends upward through the movable frame. Because the bottom edge of the extrusion mesh 7 is provided with a mesh frame fixed to the inner wall of the fermentation inner tank 2, the extrusion mesh 7 deforms into a trapezoidal cylinder with an arc-shaped top. The deformation process of the extrusion mesh 7 pushes the kitchen waste to the outside of the extrusion mesh 7. After the extrusion mesh 7 is deformed, its outer wall... The inner wall of the fermentation liner 2 compresses the kitchen waste, thereby squeezing out the oil in the kitchen waste and expelling it. The squeezed-out oil floats on top of the fermentation liquid. At the same time, as the lifting slider 6 is lifted, the roller 801, which is fixed on the top rod 8, contacts the bottom folding cavity of the stacked stirring rod 9, and pushes the stacked stirring rod 9 upward, causing it to fold and lift. As the roller 801 contacts the folding cavity, its own rotatable characteristic allows the stacked stirring rod 9 to rotate without being restricted while being pushed and folded. Subsequently, the squeezed kitchen waste is in a static state, while the stacked stirring rod 9, which is in the process of stirring, is in a dynamic stirring state. This makes the kitchen waste and the fermentation liquid no longer maintain a relatively static state, thereby improving the stirring efficiency of the squeezed-out oil and the fermentation liquid, and increasing the decomposition efficiency of the kitchen waste.

[0043] When the stacked stirring rod 9, which is in the lifting state, contacts the pressure plate 10, it causes the pressure plate 10 to drive the suction piston 1001 to move upward from the drive rod 4. The pressure plate 10, guided and constrained by the second guide rod 12, squeezes the spring 13 fitted on the second guide rod 12. Because a liquid-absorbing cavity is formed between the top of the diversion channel 14 and the suction piston 1001, the suction piston 1001 simultaneously draws in the oil floating on the surface of the fermentation liquid through the inlet 402 into this cavity. The oil is then guided by the diversion channel 14 into the cavity inside the screw 5 and discharged through the outlet 501 at the bottom of the screw 5, thus allowing the oil to escape from the bottom of the fermentation liquid. The oil is redistributed in the fermentation broth, making the heat exchange efficiency of the oil more evenly distributed in the fermentation broth and improving the fermentation efficiency in the fermentation broth. Because a one-way valve 15 is set in the liquid inlet 402, the liquid in the liquid suction cavity will not be discharged from the liquid inlet 402 again. And a one-way valve 15 is also set in the drainage groove 14, so the oil will not overflow the groove opening of the drainage groove 14. Then the servo motor rotates in the reverse direction, which causes the drive rod 4 to drive the lead screw 5 to rotate in the reverse direction, and causes the lifting slider 6 to drive the extrusion mesh 7 to move downward. At the same time, the stacked stirring rod 9 falls again. The pressure plate 10 returns to its original position as the stacked stirring rod 9 falls, due to the elasticity of the spring 13.

[0044] Finally, the kitchen organic solid waste treatment equipment repeats the above process on the kitchen waste in the fermentation inner tank 2 according to the timer setting of the servo motor until the kitchen waste in the fermentation inner tank 2 is completely fermented and decomposed.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A kitchen organic solid waste treatment device, comprising a fermentation tank (1), a servo motor disposed on top of the fermentation tank (1), a fermentation inner liner (2) placed inside the fermentation tank (1) for storing fermentation materials, and heating rings (3) arranged in a circular array between the fermentation tank (1) and the fermentation inner liner (2) and attached to the outer wall of the fermentation inner liner (2), characterized in that: It also includes a drive rod (4) that can negatively pressure suck oil from the surface of the fermentation liquid, and a stacked stirring rod (9) that can be slidably sleeved on the drive rod (4). The bottom of the drive rod (4) is fixedly connected to a lead screw (5), and the lead screw (5) is sleeved with an oil squeezing structure for lifting the stacked stirring rod (9) to squeeze the oil from the kitchen waste. The oil squeezing structure includes a squeezing net (7) for pushing the kitchen waste to squeeze the oil onto the inner wall of the fermentation inner tank (2), and a net fixed at the center of the squeezing net (7). A lifting slider (6) is connected to and sleeved on the screw (5) and drives the extrusion mesh (7) to rise and deform. The top of the lifting slider (6) is fixedly connected to a top rod (8) arranged in a circular array, and the top of each top rod (8) is fixedly connected to a rotating roller (801). The screw (5) is provided with a first guide rod (11) on both sides for limiting the lifting of the lifting slider (6), and the bottom of the first guide rod (11) is fixed to the bottom of the fermentation inner liner (2). The stacked stirring rod (9) The drive rod (4) has a stacking cavity, and the top of the roller (801) is in contact with the stacking cavity at the bottom of the stacked stirring rod (9). A suction piston (1001) is slidably disposed inside the drive rod (4), and a pressure plate (10) is fixedly connected to the top of the suction piston (1001). The two ends of the pressure plate (10) are exposed outside the drive rod (4) and are in contact with the top of the fixed stirring rod. The outer wall of the drive rod (4) has a movable groove for the pressure plate (10) to slide, and the movable groove is provided with a sliding groove. Each of the two guide rods is fixedly connected to a second guide rod (12) for guiding the sliding of the pressure plate (10). A spring (13) is sleeved on the second guide rod (12). A drain groove (14) is fixedly connected inside the screw (5). A liquid suction cavity for sucking oil is formed between the top of the drain groove (14) and the suction piston (1001). An inlet (402) is opened at the bottom of the outer wall of the drive rod (4). A one-way valve (15) is provided in both the inlet (402) and the drain groove (14).

2. The kitchen organic solid waste treatment equipment according to claim 1, characterized in that: The stacked stirring rod (9) consists of a top fixed stirring rod and several lower retractable sliding stirring rods. The inner wall of the sliding stirring rod is fixedly connected to a stacking slider (17). The outer wall of the stacked stirring rod (9) is provided with a stacking groove (901) for the stacking slider (17) to slide. The inner wall of the retractable cavity of the fixed stirring rod is fixedly connected to a limiting slider (16). The outer wall of the driving rod (4) is provided with a lifting groove (401) for the limiting slider (16) to slide.

3. The kitchen organic solid waste treatment equipment according to claim 1, characterized in that: The bottom edge of the extrusion mesh (7) is fixedly connected to a mesh frame, and the mesh frame is connected to the inner wall of the fermentation inner liner (2). A movable frame is provided on the inner side of the mesh frame, and the movable frame is connected to the top of the extrusion mesh (7) so that the extrusion mesh (7) can be deformed into a trapezoidal cylinder, and the top of the trapezoidal cylinder is arc-shaped so that kitchen waste can be moved to the outside of the extrusion mesh (7).

4. The kitchen organic solid waste treatment equipment according to claim 1, characterized in that: The bottom of the lead screw (5) is provided with a drain port (501) for discharging oil.

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