Kitchen waste drying device capable of efficiently guiding flow

Abstract

The utility model discloses an efficient diversion kitchen waste drying device which comprises a machine shell, an air inlet and an air outlet are formed in the machine shell, a waste containing cavity, a hot air cavity and a filtering cavity are formed in the machine shell, the hot air cavity is communicated with the air inlet, a heating device and an air interchanger are arranged in the hot air cavity, and the filtering cavity is communicated with the air outlet. An air guide piece is further arranged between the hot air cavity and the filter cavity, the first end of the air guide piece is connected with an outlet of the air exchange device, the second end of the air guide piece is connected with an inlet of the filter cavity, and an air guide channel is formed between the outlet of the air exchange device and the inlet of the filter cavity, so that part of air exhausted by the air exchange device is quickly guided into the filter cavity; and the other part of air continuously participates in the air internal circulation of the kitchen waste dryer, so that the air in the kitchen waste dryer is accurately divided, and the heat loss is avoided.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste treatment, and in particular to a high-efficiency kitchen waste drying device. Background Technology

[0002] Kitchen waste is characterized by high moisture content and easy decomposition and odor. Reducing the moisture content of kitchen waste through drying technology to achieve volume reduction and resource recovery is gradually becoming the mainstream approach.

[0003] In existing technologies, food waste drying equipment typically employs a hot air circulation heating method, using a fan to drive hot air to contact the waste and evaporate moisture. However, such equipment still has significant drawbacks in practical applications: Firstly, the air inside the food waste dryer is prone to turbulence or localized stagnation, resulting in low transmission efficiency and the inability to quickly expel the heated water vapor. Secondly, in existing technologies, the inlet of the filter device lacks a precise airflow guiding structure, causing some of the freshly heated air to exit directly from the filter chamber before the food waste has been dried, leading to increased heat loss and reduced drying efficiency. For example, the utility model patent with authorization announcement number CN212504636U provides a multi-functional household waste disposer. Because the filter element is directly located at the top of the inner cavity, after the gas heated by the hot air assembly is discharged into the inner cavity, a large portion of the hot air is discharged into the outside air through the gas filtration channel before it has even come into contact with the food waste at the bottom, affecting both drying efficiency and drying effect. Furthermore, the internal circulation system of traditional equipment lacks sufficient sealing, causing harmful gases to escape, affecting system stability and environmental hygiene.

[0004] To address the aforementioned issues, existing technologies have not yet provided a solution that can optimize hot air flow efficiency, reduce energy consumption, enhance filtration effectiveness, and maintain system airtightness. Therefore, there is an urgent need to design a kitchen waste drying device with a compact structure, efficient airflow path, and stable internal circulation function to improve drying efficiency and environmental performance. Utility Model Content

[0005] Therefore, in order to solve the above problems, this utility model provides a highly efficient food waste drying device.

[0006] This utility model is achieved through the following technical solution:

[0007] A high-efficiency airflow guiding kitchen waste drying device includes a housing with an air inlet and an air outlet. Inside the housing are a waste collection chamber, a hot air chamber, and a filter chamber located at the top of the waste collection chamber. The hot air chamber communicates with the air inlet and contains a heating device and a ventilation device. The filter chamber communicates with the air outlet. A guide vane is also provided between the hot air chamber and the filter chamber. A first end of the guide vane connects to the outlet of the ventilation device, and a second end connects to the inlet of the filter chamber, forming an airflow channel between the outlet of the ventilation device and the inlet of the filter chamber. The waste collection chamber communicates with the hot air chamber, and a flow guiding cavity is also formed between the housing and the waste collection chamber, connecting the hot air chamber and the waste collection chamber respectively.

[0008] Preferably, the inlet of the filter chamber is located on the side wall near the hot air chamber, a filter is provided inside the filter chamber, a support base is provided at the bottom of the filter, and a confluence cavity is formed in the support base, the confluence cavity communicating with the inlet of the filter chamber.

[0009] Preferably, a limiting groove is formed around the top outer periphery of the support base, and a rubber ring is disposed in the limiting groove, with the bottom of the filter abutting against the rubber ring.

[0010] Preferably, the ventilation device is an exhaust fan, with the exhaust fan outlet located at the top and the exhaust fan inlet located at the bottom, and the heating device is a heating coil spaced apart at the top of the exhaust fan.

[0011] Preferably, the first end of the air guide forms a first guide portion, the second end of the air guide forms a second guide portion, a fixing portion is formed between the first guide portion and the second guide portion, the fixing portion is disposed on the side wall of the hot air cavity near the filter cavity, and the first guide portion extends from the top of the fixing portion to the top of the exhaust fan outlet, and the second guide portion extends from the bottom of the fixing portion to the inlet of the filter cavity.

[0012] Preferably, the housing includes a detachable upper housing and a lower housing, with a baffle assembly disposed between the upper and lower housings. The inner cylinder is disposed within the lower housing, and the filter chamber and hot air chamber are disposed within the upper housing. The housing contains an inner cylinder for holding kitchen waste, forming a waste-containing cavity inside the inner cylinder. The inner cylinder is spaced apart from the inner wall of the lower housing, forming a flow guide cavity at the gap between the inner cylinder and the lower housing. A water filter hole is provided at the bottom of the inner cylinder, and the water filter hole communicates with the flow guide cavity.

[0013] Preferably, the baffle assembly is provided with a first ventilation hole, which is located between the exhaust fan and the inner cylinder.

[0014] Preferably, the baffle assembly is further provided with a second ventilation hole and a third ventilation hole, the second ventilation hole being located between the hot air cavity and the guide cavity, and the third ventilation hole being located between the guide cavity and the air inlet.

[0015] The beneficial effects of this utility model's technical solution are mainly reflected in:

[0016] 1. An air guide is installed between the hot air chamber and the filter chamber. The air guide forms an air channel between the outlet of the ventilation device and the inlet of the filter chamber, so that part of the air discharged by the ventilation device is quickly guided into the filter chamber, while the other part of the air continues to participate in the internal air circulation of the kitchen waste dryer, thereby achieving precise air diversion inside the kitchen waste dryer and avoiding heat loss.

[0017] 2. A guide cavity is also formed between the shell and the waste holding cavity. The guide cavity is connected to the hot air cavity and the waste holding cavity respectively, and accurately delivers hot air to the waste holding cavity in the inner cylinder for drying the kitchen waste inside the waste holding cavity. Especially when the outlet of the guide cavity is set at the bottom of the inner cylinder, the hot air flows upward from the bottom of the kitchen waste, thereby ensuring the contact surface between the hot air and the kitchen waste, so as to improve the utilization rate of hot air and drying efficiency. In addition, the hot air entering the guide cavity will also directly contact the wastewater collected at the bottom of the guide cavity, thereby causing the wastewater to evaporate quickly. Attached Figure Description

[0018] Figure 1 This is a bottom view of the upper casing of a high-efficiency airflow-directing kitchen waste drying device;

[0019] Figure 2 This is a side view of a high-efficiency waste drying device.

[0020] Figure 3 This is a cross-sectional view of a high-efficiency food waste drying device along line AA.

[0021] Figure 4 yes Figure 3 Schematic diagram of airflow direction between inside and outside;

[0022] Figure 5 yes Figure 4 Enlarged view of section C;

[0023] Figure 6 This is a cross-sectional view of the high-efficiency airflow drying device along BB.

[0024] Figure 7 yes Figure 5 Diagram showing the direction of airflow inside and outside the building. Detailed Implementation

[0025] To make the objectives, advantages, and features of this utility model clearer and more detailed, the following non-limiting description of preferred embodiments will be illustrated and explained. These embodiments are merely typical examples of applying the technical solutions of this utility model; any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0026] It should also be stated that, in the description of the solution, the terms "center", "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" in this solution are used for descriptive purposes only and should not be construed as indicating or implying a ranking of importance, or implicitly specifying the number of technical features shown. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0028] This utility model discloses a highly efficient food waste drying device, such as... Figures 3-7 As shown, the device includes a housing 1, which has an air inlet 5 and an air outlet 6. Inside the housing 1 is a waste collection chamber 2, a hot air chamber 3, and a filter chamber 4 located at the top of the waste collection chamber 2. The hot air chamber 3 contains a heating device 9 and a ventilation device 8. The filter chamber 4 communicates with the air outlet 6, and the air outlet 6 is preferably located at the top of the filter chamber 4. A guide vane 7 is also provided between the hot air chamber 3 and the filter chamber 4. The first end of the guide vane 7 is connected to the outlet of the ventilation device 8, and the second end of the guide vane 7 is connected to the inlet 13 of the filter chamber, forming a guide channel between the outlet of the ventilation device 8 and the inlet 13 of the filter chamber. This ensures that a portion of the air discharged from the ventilation device 8 is accurately guided to the filter chamber 4, and then discharged to the outside of the housing 1 through the air outlet 6 connected to the filter chamber 4, thus completing the exchange of external air with the air inside the housing 1.

[0029] like Figure 3 , Figure 4 , Figure 6 , Figure 7As shown, the waste containing chamber 2 is connected to the hot air chamber 3, and a guide chamber 15 is also formed between the housing 1 and the waste containing chamber 2. The guide chamber 15 is connected to the hot air chamber 3, the waste containing chamber 2 and the air inlet 5, thereby realizing the internal circulation of air inside the housing 1 between the hot air chamber 3, the waste containing chamber 2 and the guide chamber 15.

[0030] like Figure 1 , Figure 4 , Figure 5 As shown, in some embodiments, the inlet 13 of the filter chamber is located on the side wall near the hot air chamber 3. A filter 10 is provided in the filter chamber 4. In one embodiment, the filter 10 is a carbon box with filter holes at the bottom and a filter outlet at the top. The carbon box is filled with activated carbon. A support base 11 is provided at the bottom of the filter 10, and a confluence chamber 12 is formed in the support base 11. The confluence chamber 12 communicates with the inlet 13 of the filter chamber. Specifically, a confluence hole 1201 is provided on the support base 11. Part of the air discharged by the ventilation device 8 is guided to the inlet of the filter chamber 4 and enters the confluence chamber 12 through the confluence hole 1201. It then enters the carbon box through the filter holes at the bottom of the carbon box, is dried and deodorized by activated carbon, and is discharged from the filter outlet and flows out to the outside of the housing 1 through the air outlet 6.

[0031] like Figure 5 As shown, in one embodiment, a limiting groove is formed around the top outer periphery of the support base 11, and a rubber ring 17 is provided in the limiting groove. The bottom of the filter 10 abuts against the rubber ring 17. By providing a rubber ring 17 around the outer periphery of the support base 11, the sealing performance at the connection between the support base 11 and the filter 10 can be improved, preventing air entering the manifold 12 from flowing out of the filter 10. On the other hand, the filter 10 can be quickly replaced by utilizing the elasticity of the rubber ring 17.

[0032] like Figures 3-7As shown, in some embodiments, the ventilation device 8 is an exhaust fan with its outlet at the top and its inlet at the bottom, facilitating the extraction of air from the waste collection chamber 2 at the bottom of the exhaust fan and its discharge to the top. Subsequently, part of the air discharged from the top of the exhaust fan is guided into the filter chamber 4, while the other part is heated by the heating device 9 and flows into the guide chamber 15, then flows back into the waste collection chamber 2, thus achieving internal air circulation. Simultaneously, according to the change in air pressure inside the casing 1, external air flows into the guide chamber 15 from the air inlet 5 and merges with the hot air before entering the waste collection chamber 2, ensuring stable air pressure inside the casing 1. The heating device 9 is a heating coil spaced apart on the top of the exhaust fan. A temperature sensor 14 for detecting air temperature can also be provided between the heating coil and the exhaust fan. In other embodiments, the heating device 9 can also adopt other heating structures, which will not be described in detail here.

[0033] like Figure 3 , Figure 5 As shown, in one embodiment, the first end of the air guide 7 forms a first guide portion 701, and the second end of the air guide 7 forms a second guide portion 702. A fixing portion 703 is formed between the first guide portion 701 and the second guide portion 702. The fixing portion 703 is disposed on the side wall of the hot air chamber 3 near the filter chamber 4. The first guide portion 701 extends from the top of the fixing portion 703 to the top of the exhaust fan outlet, and the second guide portion 702 extends from the bottom of the fixing portion 703 to the inlet 13 of the filter chamber. This allows part of the air discharged from the exhaust fan outlet to be guided by the first guide portion 701 into the air guide channel formed between the exhaust fan and the air guide 7, and then by the second guide portion 702 to the inlet 13 of the filter chamber. After passing through the inlet of the filter chamber 4, the air enters the confluence chamber 12 and the filter 10 in sequence, and is finally discharged from the air outlet 6 at the top of the filter 10.

[0034] like Figure 2 , Figure 3 , Figure 4 , Figure 6As shown, in some embodiments, the housing 1 includes a detachable upper housing 101 and a lower housing 102. A baffle assembly 18 is provided between the upper housing 101 and the lower housing 102. The baffle assembly 18 can be used to separate and connect the upper housing 101 and the lower housing 102. The specific structure of the baffle assembly 18 can be referred to the prior art and will not be described in detail here. The inner cylinder 16 is disposed in the lower housing 102, and the filter chamber 4 and the hot air chamber 3 are disposed in the upper housing 101. An electrical control chamber 20 can also be disposed inside the upper housing 101, and an electrical control assembly 19 for controlling the operation of each component is arranged in the electrical control chamber 20. The heating device 9, the air exchange device, and the temperature sensor 14 can all be connected to the electrical control assembly 19 through wires and controlled by the electrical control assembly 19. The wiring method of each component and the specific structure of the electrical control assembly 19 can be referred to the prior art and will not be described in detail here.

[0035] like Figure 3 , Figure 6 As shown, in some embodiments, the housing 1 is provided with an inner cylinder 16 for holding kitchen waste. The interior of the inner cylinder 16 forms a waste receiving cavity 2. The inner cylinder 16 is spaced apart from the inner wall of the lower housing 102, forming a guide cavity 15 at the gap between the inner cylinder 16 and the lower housing 102. Specifically, the bottom and outer periphery of the inner cylinder 16 are spaced apart from the inner wall of the lower housing 102. The bottom of the inner cylinder 16 is provided with a water filter hole 1601, and the water filter hole 1601 is connected to the guide cavity 15. The flow chamber 15 is interconnected, allowing the liquid from the kitchen waste in the inner cylinder 16 to flow into the guide chamber 15 through the water filter hole 1601. On the other hand, it ensures that the air in the guide chamber 15 can enter the inner cylinder 16 through the water filter hole 1601. When the heated air in the hot air chamber 3 enters the guide chamber 15, it rises from the bottom of the inner cylinder 16 through the water filter hole 1601, allowing the hot air to evenly dry all parts of the kitchen waste from the bottom, which can improve the drying efficiency and ensure the uniformity of heating and drying effect of the kitchen waste.

[0036] In some embodiments, the bottom of the inner cylinder 16 is provided with a support foot (not shown in the figure), and the inner cylinder 16 is supported by the support foot, thereby spacing the inner cylinder 16 from the inner bottom surface of the lower housing 102; in a preferred embodiment, a boss for positioning the inner cylinder 16 may also be provided on the inner bottom surface of the lower housing 102, and a limiting hole matching the boss is provided at the bottom of the inner cylinder 16. When the inner cylinder 16 is installed inside the lower housing 102, the boss passes through the limiting hole, thereby ensuring quick assembly and disassembly of the inner cylinder 16 and the lower housing 102 and positioning of the inner cylinder 16 and the lower housing 102.

[0037] like Figures 3-6As shown, in one embodiment, the baffle assembly 18 is provided with a first ventilation hole 21, which is located between the exhaust fan and the inner cylinder 16, thereby ensuring that the air in the waste containing cavity 2 is accurately drawn into the hot air cavity 3. The second ventilation hole 22 is located between the hot air cavity 3 and the guide cavity 15, so that the air in the hot air cavity 3 enters the guide cavity 15 and then flows into the waste containing cavity 2, realizing internal air circulation. The baffle assembly 18 is also provided with a second ventilation hole 22 and a third ventilation hole 23. The third ventilation hole 23 is located between the guide cavity 15 and the air inlet 5. The third ventilation hole 23 is preferably located directly below the air inlet 5, thereby ensuring that the external air entering from the air inlet 5 enters the guide cavity 15 through the third ventilation hole 23.

[0038] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A high-efficiency kitchen waste drying device, comprising a casing, wherein an air inlet and an air outlet are arranged on the casing, and characterized in that: The garbage accommodating cavity is communicated with the hot air cavity, and a flow guide cavity is further formed between the machine shell and the garbage accommodating cavity.

2. The high-efficiency guiding kitchen waste drying device according to claim 1, characterized in that: The inlet of the filter cavity is arranged on the side wall of the filter cavity close to the hot air cavity.

3. The high-efficiency guiding kitchen waste drying device according to claim 2, characterized in that: The top outer periphery of the support seat further forms a limiting groove, and a rubber ring is arranged in the limiting groove.

4. The high-efficiency guiding kitchen waste drying device according to claim 2, characterized in that: The air exchange device is an exhaust fan, the outlet of the exhaust fan is located at the top end of the exhaust fan, the inlet of the exhaust fan is located at the bottom end of the exhaust fan, and the heating device is a heating ring arranged at the top of the exhaust fan.

5. The high-efficiency, high-velocity, kitchen waste drying apparatus of claim 4, wherein: The first end of the air guide member forms a first guide part, the second end of the air guide member forms a second guide part, a fixing part is formed between the first guide part and the second guide part, the fixing part is arranged on the side wall of the hot air cavity close to the filter cavity, the first guide part extends from the top of the fixing part to the top of the outlet of the exhaust fan, and the second guide part extends from the bottom of the fixing part to the inlet of the filter cavity.

6. The high-efficiency, high-velocity, kitchen waste drying apparatus of claim 5, wherein: The machine shell comprises a detachable upper machine shell and a lower machine shell, a baffle assembly is arranged between the upper machine shell and the lower machine shell, an inner cylinder for containing kitchen garbage is arranged in the machine shell, the inner cylinder is arranged in the lower machine shell, and the filter cavity and the hot air cavity are arranged in the upper machine shell.

7. The high-efficiency flow-guiding kitchen waste drying device according to claim 6, characterized in that: A first ventilation hole is arranged on the baffle assembly and located between the exhaust fan and the inner cylinder.

8. The high-efficiency, high-ducting kitchen waste drying device according to claim 7, characterized in that: Second and third ventilation holes are further arranged on the baffle assembly, the second ventilation hole is located between the hot air cavity and the flow guide cavity, and the third ventilation hole is located between the flow guide cavity and the air inlet.

Images