Kitchen waste oil separation and dehydration structure with adaptive adjustment
By using an adaptive adjustment structure for separating and dehydrating kitchen waste, dynamic baffles and variable diameter screws are employed to solve the problems of clogging and odor in the kitchen waste grease trap, achieving stable operation and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LEO WATER TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
Existing grease traps for kitchen waste are prone to clogging when there is a sudden surge in flow, leading to the accumulation of solid-liquid mixtures and fermentation that produces foul odors. They also lack an adaptive regulation mechanism.
An adaptive adjustment structure for separating and dehydrating kitchen waste is designed. It adopts dynamic baffles and limiting structures. The baffles adjust their opening according to the fluid impact force, and combined with a variable diameter screw for mechanical extrusion, it achieves adaptive flow regulation and solid-liquid separation.
It effectively prevents blockages, eliminates foul odors, reduces manufacturing costs and transportation energy consumption, and improves operational stability and ease of maintenance.
Smart Images
Figure CN224493841U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of kitchen waste treatment, and relates to a kitchen waste oil-water separation and dehydration structure with adaptive adjustment. Background Technology
[0002] The key challenges currently facing the source treatment of food waste are grease trap blockage and odor. Existing grease traps have fixed inlet structures; during sudden surges in flow, insufficient downstream transport capacity leads to the accumulation and blockage of solid-liquid mixtures in pipes or at the inlet. The retained mixture rapidly ferments in an anaerobic environment, producing odorous gases (such as hydrogen sulfide) and deteriorating the working environment. The root cause lies in the lack of an adaptive adjustment mechanism for flow fluctuations and the transport characteristics of the solid-liquid mixture. Utility Model Content
[0003] This invention provides a self-adjusting oil-water separation and dehydration structure for kitchen waste. It has a compact structure, is anti-clogging and odor-proof, and can effectively solve the problem of oil blockage through the design of dynamic baffles.
[0004] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:
[0005] An adaptive adjustment structure for separating and dehydrating kitchen waste includes an inlet pipe and an oil-separating funnel. The oil-separating funnel is located below the outlet of the inlet pipe. A baffle that responds to the fluid impact force is hinged at the outlet of the inlet pipe. The upper end of the baffle is hinged to the top of the end face of the inlet pipe, and its horizontal projection plane covers the outlet of the inlet pipe. The rotation angle range of the baffle is limited by a limiting structure: the minimum value of its angle with the vertical plane is greater than 0°, and the maximum value ranges from 15° to 45°.
[0006] In the above-mentioned adaptive adjustment structure for separating and dehydrating kitchen waste, preferably, the angle range of the baffle rotation is 5°-30°.
[0007] In the above-mentioned adaptive adjustment structure for separating and dehydrating kitchen waste, an elastic element is provided between the baffle and the water inlet pipe. The elastic element limits the rotation angle of the baffle within its deformation range, and the elastic element constitutes the limiting structure. The elastic element can be selected as a sheet or a spring.
[0008] In the aforementioned adaptive adjustment structure for separating and dehydrating kitchen waste, the baffle is made of elastic stainless steel or high-performance engineering plastic.
[0009] In the above-mentioned adaptive adjustment structure for separating and dehydrating kitchen waste, the limiting structure can also use other structures, such as limiting the rotation structure by setting a limiting block on the water inlet pipe.
[0010] In the above-mentioned adaptive adjustment structure for separating and dehydrating kitchen waste, the elastic element is a spring. One end of the spring is connected to the water inlet pipe, and the other end is connected to the baffle. When the baffle is at its minimum angle, the supporting force of the spring on the baffle is balanced with the weight of the baffle. When the baffle is at its maximum angle, the spring is in its maximum tension state.
[0011] In the above-mentioned adaptive adjustment structure for dehydrating and separating kitchen waste, the water inlet pipe extends from the outside of the frame into the inner cavity of the frame, the oil-separating funnel is located in the inner cavity of the frame, the oil-separating funnel is covered with screen holes, and a U-shaped conveying trough is inclinedly arranged at the bottom of the oil-separating funnel. A screw for outputting kitchen waste from the frame is arranged in the U-shaped conveying trough. The U-shaped conveying trough and the screw have the same inclination angle, and their inclination direction is arranged from bottom to top along the conveying direction.
[0012] In the above-mentioned adaptive adjustment structure for separating and dehydrating kitchen waste, preferably, the aperture of the sieve holes is 2-5 mm.
[0013] In the above-mentioned adaptive adjustment structure for dehydrating and separating kitchen waste, an inclined sleeve is provided on the outside of the frame, and a motor for driving the screw is provided at the outer end of the sleeve. The sleeve and the screw are coaxially arranged. When the screw rotates, the kitchen waste is transported from the U-shaped conveying trough to the inner cavity of the sleeve. A discharge pipe communicating with the inner cavity of the sleeve is provided on one side of the sleeve.
[0014] In the above-mentioned adaptive adjustment structure for separating and dehydrating kitchen waste, the screw is a variable diameter screw, and the radial dimension of its spiral blades gradually decreases along the conveying direction, and the cross-sectional area of the U-shaped conveying trough decreases accordingly.
[0015] In the above-mentioned adaptive adjustment structure for separating and dehydrating kitchen waste, the outer diameter of the spiral blade gradually decreases by 10%-30% from the inlet end to the outlet end along the material conveying direction, forming a conical compression channel with a cross-sectional area at the inlet end larger than that at the outlet end, and the taper angle of the conical compression channel is 3°-8°; preferably, the outer diameter of the spiral blade gradually decreases by 20%-25% from the inlet end to the outlet end along the material conveying direction, and the taper angle of the conical compression channel is 5°-6°.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] 1. This utility model provides a self-adjusting oil-water separation and dehydration structure for kitchen waste. The dynamic baffles self-adjust the flow cross section, effectively preventing pipe and inlet blockage caused by instantaneous flow surges, eliminating the stagnation and fermentation of mixtures, eradicating odor sources, and improving the environment. The self-adjusting structure without power can also reduce manufacturing costs, make maintenance convenient and inexpensive, and ensure stable and reliable operation.
[0018] 2. This utility model utilizes a limiting structure to limit the angle range of the baffle rotation: the minimum value of the angle between the baffle and the vertical plane is greater than 0°, so that the baffle will not completely fit the water inlet pipe outlet and always maintain a certain opening to ensure that the sewage can flow out normally; the maximum value limits the maximum opening of the baffle to prevent it from rotating excessively and losing its regulating function or causing the sewage flow rate to be too fast, which would affect the oil separation and dehydration effect.
[0019] 3. This utility model further provides an optimized dehydration structure. During the process of conveying kitchen waste through a variable diameter screw, the waste will be mechanically squeezed in a conical compression channel, which greatly reduces the output moisture content and the volume of waste is also compressed to a smaller size, which can significantly reduce the energy consumption and cost of subsequent transportation and treatment. Attached Figure Description
[0020] Figure 1 This is a top view of the present invention;
[0021] Figure 2 yes Figure 1 AA section view;
[0022] Figure 3 yes Figure 1 BB section view;
[0023] Figure 4 This is a schematic diagram of the structure when the baffle is at its minimum rotation angle;
[0024] Figure 5 This is a schematic diagram of the structure when the baffle is at its maximum rotation angle;
[0025] Figure 6 This is a schematic diagram of the dehydration conveying structure of this utility model;
[0026] Reference numerals in the attached diagram: 1. Water inlet pipe; 2. Oil separator funnel; 3. Baffle; 4. Spring; 5. Frame; 6. U-shaped conveyor trough; 7. Screw; 8. Sleeve; 9. Motor; 10. Discharge pipe. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-6 :
[0028] An adaptive adjustment structure for separating and dehydrating kitchen waste includes an inlet pipe 1 and an oil-separating funnel 2. The oil-separating funnel 2 is located below the outlet of the inlet pipe 1. A baffle 3 with an opening degree responsive to fluid impact force is hinged at the outlet of the inlet pipe 1. The upper end of the baffle 3 is hinged to the top of the end face of the inlet pipe 1, and its horizontal projection plane covers the outlet of the inlet pipe 1. The rotation angle range of the baffle 3 is limited by a limiting structure: the minimum value α of the angle between it and the vertical plane is greater than 0°, and the maximum value β ranges from 15° to 45°.
[0029] The adaptive working principle of this embodiment is as follows: When kitchen waste sewage flows out from the inlet pipe 1, it impacts the baffle 3. The impact force varies depending on the sewage flow rate and velocity. Under the action of this impact force, the baffle 3 rotates around the hinge point, thus changing its opening. If the sewage flow rate is large and the impact force is strong, the baffle 3 will rotate at a larger angle to increase the water flow channel area, allowing the sewage to flow out smoothly; conversely, when the sewage flow rate is small, the baffle 3 will rotate at a smaller angle. The kitchen waste flowing out from the inlet pipe 1 enters the grease trap 2 and undergoes preliminary solid-liquid separation through the sieve holes of the grease trap 2.
[0030] In this embodiment, the hinge structure between the baffle 3 and the water inlet pipe 1 adopts a conventional structure in the art. For example, a hinge seat is provided at the top of the water inlet pipe 1, and the upper end of the baffle 3 is hinged to the hinge seat through a hinge shaft.
[0031] In this embodiment, the rotation angle range of the baffle 3 is 5°-30°, that is, the minimum value α is 5°. Figure 4 As shown), the maximum value β is 30°. Figure 5 (As shown).
[0032] In this embodiment, the baffle 3 is made of elastic stainless steel or high-performance engineering plastic, which have good properties.
[0033] In this embodiment, an elastic element is provided between the baffle 3 and the water inlet pipe 1. The elastic element limits the rotation angle of the baffle 3 within its deformation range. The elastic element constitutes the limiting structure. Specifically, the elastic element is a spring 4. One end of the spring 4 is connected to the water inlet pipe 1, and the other end is connected to the baffle 3. When the baffle 3 is at its minimum angle, the supporting force of the spring 4 on the baffle 3 is balanced with the gravity of the baffle 3. When the baffle 3 is at its maximum angle, the spring 4 is in its maximum tension state.
[0034] Based on the dehydration using the grease trap 2, this embodiment further utilizes the screw 7 that transports the kitchen waste for further dehydration.
[0035] The overall structural framework is as follows: the water inlet pipe 1 extends from the outside of the frame 5 into the inner cavity of the frame 5; the oil-separating funnel 2 is located in the inner cavity of the frame 5; the oil-separating funnel 2 is covered with screen holes; a U-shaped conveying trough 6 is inclinedly arranged at the bottom of the oil-separating funnel 2; a screw 7 is arranged in the U-shaped conveying trough 6 to output kitchen waste from the frame 5; the U-shaped conveying trough 6 and the screw 7 have the same inclination angle, and their inclination direction is arranged from bottom to top along the conveying direction; kitchen waste enters the oil-separating funnel 2 through the water inlet pipe 1, then falls into the U-shaped conveying trough 6 at its bottom, and finally is conveyed out of the frame 5 along the rotation direction of the screw 7's spiral blades. During this process, preliminary solid-liquid separation is carried out through the screen holes on the oil-separating funnel 2 (U-shaped conveying trough 6).
[0036] Preferably, the sieve aperture is 2-5 mm, which can effectively achieve solid-liquid separation.
[0037] Furthermore, an inclined sleeve 8 is provided on the outer side of the frame 5, and a motor 9 for driving the screw 7 is provided at the outer end of the sleeve 8. The sleeve 8 and the screw 7 are coaxially arranged. When the screw 7 rotates, it conveys the kitchen waste from the U-shaped conveying trough 6 to the inner cavity of the sleeve 8. A discharge pipe 10 communicating with the inner cavity of the sleeve 8 is provided on one side of the sleeve 8. The screw 7 conveys the waste that has undergone preliminary solid-liquid separation into the inner cavity of the sleeve 8, and then outputs it through the discharge pipe 10.
[0038] In this embodiment, the screw 7 is a variable diameter screw 7, and the radial dimension of its helical blades gradually decreases along the conveying direction, and the cross-sectional area of the U-shaped conveying trough 6 is correspondingly reduced; through the above design, the cross-sectional area of the feed end is significantly larger than the cross-sectional area of the discharge end, thereby forming a conical compression structure, which reduces the moisture content of the discharge through physical extrusion.
[0039] Furthermore, the outer diameter of the spiral blade gradually decreases by 10%-30% along the material conveying direction from the feed end to the discharge end, forming a conical compression channel with a cross-sectional area at the feed end larger than that at the discharge end, and the taper angle of the conical compression channel is 3°-8°; preferably, the outer diameter of the spiral blade gradually decreases by 20%-25% along the material conveying direction from the feed end to the discharge end, and the taper angle of the conical compression channel is 5°-6°.
[0040] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.
Claims
1. A self-adjusting grease trap and dehydration structure for kitchen waste, comprising an inlet pipe (1) and a grease trap funnel (2), wherein the grease trap funnel (2) is located below the outlet of the inlet pipe (1), characterized in that, The outlet of the water inlet pipe (1) is hinged with a baffle (3) that responds to the fluid impact force. The upper end of the baffle (3) is hinged to the top of the end face of the water inlet pipe (1), and its horizontal projection surface covers the outlet of the water inlet pipe (1). The rotation angle range of the baffle (3) is limited by the limiting structure: the minimum value of its angle with the vertical plane is greater than 0°, and the maximum value ranges from 15° to 45°.
2. The adaptively adjustable grease trap and dehydration structure for kitchen waste according to claim 1, characterized in that, The angle range of the baffle (3) is 5°-30°.
3. The adaptively adjustable grease trap and dehydration structure for kitchen waste according to claim 1, characterized in that, An elastic element is provided between the baffle (3) and the water inlet pipe (1), and the elastic element limits the rotation angle of the baffle within its deformation range.
4. The adaptively adjustable grease trap and dehydration structure for kitchen waste according to claim 3, characterized in that, The elastic element is a spring (4). One end of the spring (4) is connected to the water inlet pipe (1), and the other end is connected to the baffle (3). When the baffle (3) is at its minimum angle, the supporting force of the spring (4) on the baffle (3) is balanced with the gravity of the baffle (3). When the baffle (3) is at its maximum angle, the spring (4) is in its maximum tension state.
5. The adaptively adjustable grease trap and dehydration structure for kitchen waste according to claim 1, characterized in that, The water inlet pipe (1) extends from the outside of the frame (5) into the inner cavity of the frame (5). The oil-separating funnel (2) is located in the inner cavity of the frame (5). The oil-separating funnel (2) is covered with sieve holes. A U-shaped conveying trough (6) is inclined at the bottom of the oil-separating funnel (2). A screw (7) is installed in the U-shaped conveying trough (6) to output kitchen waste to the frame (5).
6. The adaptively adjustable grease trap and dehydration structure for kitchen waste according to claim 5, characterized in that, An inclined sleeve (8) is provided on the outside of the frame (5). A motor (9) for driving the screw (7) is provided at the outer end of the sleeve (8). The sleeve (8), screw (7) and motor (9) are coaxially arranged. When the screw (7) rotates, it transports kitchen waste from the U-shaped conveying trough (6) to the inner cavity of the sleeve (8). A discharge pipe (10) communicating with the inner cavity of the sleeve (8) is provided on one side of the sleeve (8).
7. A self-adjusting grease trap and dehydration structure for kitchen waste according to claim 6, characterized in that, The screw (7) is a variable diameter screw, and the radial dimension of its helical blades gradually decreases along the conveying direction, and the cross-sectional area of the U-shaped conveying groove (6) decreases accordingly.
8. The adaptively adjustable grease trap and dehydration structure for kitchen waste according to claim 7, characterized in that, The outer diameter of the spiral blade gradually decreases by 10%-30% from the feed end to the discharge end along the material conveying direction, forming a conical compression channel with a cross-sectional area at the feed end larger than that at the discharge end. The taper angle of the conical compression channel is 3°-8°.
9. A self-adjusting grease trap and dehydration structure for kitchen waste according to claim 8, characterized in that, The outer diameter of the spiral blade gradually decreases by 20%-25% from the feed end to the discharge end along the material conveying direction, and the taper angle of the conical compression channel is 5°-6°.