Household kitchen garbage disposer

Abstract

The utility model provides a household kitchen garbage disposer, and aims to solve the problems that most of kitchen garbage disposers in the existing market directly discharge kitchen garbage into a sewage pipeline after being crushed, although the sewage pipeline is not greatly damaged, the bearing pressure of a whole urban sewage system is increased, and the kitchen garbage disposer cannot be used for treating the kitchen garbage. The harmless effect on the kitchen garbage is low, and the requirement of China on recycling of the kitchen garbage is not met. According to the utility model, the garbage is firstly cut up, then the solid-liquid separation is carried out on the garbage through the spiral extrusion equipment, and then the oil-water separation is carried out on the liquid after the solid-liquid separation, so that the garbage is classified into solid garbage, waste water and waste oil, the waste water is discharged into a pipeline, and the solid garbage and waste oil are respectively treated according to corresponding modes; separation of the kitchen garbage is achieved, the pressure of urban pipelines is reduced, and classification treatment of the kitchen garbage is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of household or similar garbage treatment and cleaning, in particular to a household kitchen waste processor. Background Art

[0002] In China, most urban areas adopt direct-discharge kitchen waste processors. Such kitchen waste processors are generally composed of a fully stainless-steel grinding hammer, an anti-corrosion grinding chamber, a fully stainless-steel grinding disc, etc. A rotating permanent magnet motor drives the rotation of a turntable, grinding hammer, etc. in the grinding chamber. Under the action of centrifugal force, kitchen waste is broken into tiny particles in a very short time and discharged together with water through the pipeline. Currently, commercial kitchen waste processors of companies such as Haier and Chulang all adopt this technology. However, although directly discharging the broken kitchen waste into the sewer pipeline will not block the sewer pipeline, the large amount of kitchen waste entering will still bring treatment pressure to the urban sewage system and reduce the service life of the sewer pipeline. Moreover, this type of kitchen waste processor only realizes the reduction of garbage treatment, and there is almost no harmless treatment and resource treatment for kitchen waste. Although it effectively optimizes the household environment, it does not further process the kitchen waste and does not achieve harmlessness and resource utilization. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a household kitchen waste processor. Most of the existing kitchen waste processor equipment on the market directly discharges the broken waste into the sewage pipeline. Although it does not cause great harm to the sewage pipeline, it will also increase the pressure on the entire urban sewage system, with low harmless treatment ability for kitchen waste and not meeting the requirements of China for the resource utilization of kitchen waste.

[0004] The technical solution of the utility model is as follows:

[0005] A household kitchen waste processor includes a feeding basket, and is characterized in that it further includes

[0006] a crushing mechanism, which receives the waste output from the feeding basket and performs crushing treatment on the waste;

[0007] a screw extrusion solid-liquid separation device, which receives the waste processed by the crushing mechanism. The separation device has a separation housing, a cylindrical filter screen is fixedly arranged at intervals inside the separation housing, a screw shaft is rotatably connected between the two axial ends of the separation housing, screw blades placed inside the cylindrical filter screen are fixed on the screw shaft, and a feeding port and a discharging port are respectively arranged at both ends of the separation housing. The cylindrical filter screen is communicated with the feeding port and the discharging port, a liquid outlet is communicated with the bottom of the separation housing, and the pitch of the screw blades gradually decreases from the feeding port to the discharging port;

[0008] An oil-water separation device, which is used to receive the liquid output from the liquid outlet and output the separated waste water and waste oil.

[0009] Preferably, the feeding basket is in the shape of a funnel with a larger top and a smaller bottom.

[0010] Preferably, the crushing mechanism includes a crushing shell. The upper part of the crushing shell is connected to the feeding basket, and the lower part is connected to the screw extrusion solid-liquid separation device. A rotating shaft is rotatably connected in the crushing shell. A partition plate that divides the crushing shell into two parts is fixed in the crushing shell. A plurality of material passing holes are formed in the partition plate. A plurality of crushing knives fixed on the rotating shaft are arranged in the space above the partition plate. A pushing plate fixed on the rotating shaft is arranged in the space below the partition plate. An outlet is formed in a part of the side wall of the crushing shell close to its bottom. The pushing plate pushes the material to the outlet and then into the feeding port of the screw extrusion solid-liquid separation device.

[0011] Preferably, the rotating shaft extends downward out of the crushing shell, and the extending part is driven by a rotating motor.

[0012] Preferably, the cylindrical filter screen is in a stepped shape, and the diameter near the feeding port is larger than that of the rest part.

[0013] Preferably, a solid waste box is arranged below the discharge port of the screw extrusion solid-liquid separation device.

[0014] Preferably, the oil-water separation device includes a flow channel, and an oil-water separation net is installed in the channel. The lower part of the oil-water separation net is an oil isolation layer, and the tail of the oil-water separation net is connected to a water isolation layer.

[0015] Preferably, the oil-water separation device includes a separation box. An inclined oil-water separation net is arranged in the separation box. A waste liquid inlet is arranged on the separation box at the higher side of the oil-water separation net. The waste liquid inlet is used to receive the waste liquid from the liquid outlet. The lower end of the oil-water separation net is the tail end, and a lower partition plate is fixed between the tail end and the separation box.

[0016] Preferably, an upper partition plate is connected between the higher end of the oil-water separation net and the separation box. A waste liquid inlet is arranged above the separation box on the side of the upper partition plate facing away from the oil-water separation net. A plurality of filtering holes are formed in the upper partition plate.

[0017] Preferably, the oil isolation layer is a waste oil box. The lower part of the oil-water separation net is connected to a funnel-shaped liquid collecting tray. The lower end of the liquid collecting tray communicates with the waste oil box. The water isolation layer communicates with a drain pipe for external discharge.

[0018] The beneficial effects of the present utility model are:

[0019] Based on the existing equipment, the kitchen waste processor designed this time is for urban household kitchen waste. It has improved the structure on the original basis and carried out subsequent treatment on the kitchen waste. Instead of directly discharging it into the sewer pipe, the kitchen waste is broken and then processed again, which is more in line with the requirements of kitchen waste treatment and the essence of resource utilization in our country.

[0020] In this utility model, the garbage is first shredded, then the solid-liquid separation of the garbage is carried out through a screw extrusion device, and then the oil-water separation of the liquid after solid-liquid separation is carried out, so that the garbage is classified into solid waste, wastewater and waste oil. The wastewater is discharged into the pipeline, and the solid waste and waste oil are processed in their respective corresponding ways. This not only realizes the separation of kitchen waste, but also reduces the pressure on urban pipelines and simplifies the classification treatment of kitchen waste. Brief Description of the Drawings

[0021] In order to more clearly illustrate the embodiments of this utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are only some embodiments of this utility model. For those of ordinary skill in the art, without creative work, other drawings can also be obtained according to these drawings.

[0022] Figure 1 It is a three-dimensional view of the outer shell of this utility model;

[0023] Figure 2 It is a three-dimensional view of the transparent outer shell of this utility model;

[0024] Figure 3 It is a three-dimensional view of the connection of the feed basket, crushing mechanism, solid-liquid separation device and oil-water separation device of this utility model;

[0025] Figure 4 It is a partial sectional three-dimensional view of the feed basket and crushing mechanism of this utility model;

[0026] Figure 5 It is a three-dimensional view of the connection of the crushing knife and the pushing plate of this utility model;

[0027] Figure 6 It is a sectional view of the screw extrusion solid-liquid separation device of this utility model;

[0028] Figure 7 It is a sectional three-dimensional view of the screw extrusion solid-liquid separation device of this utility model;

[0029] Figure 8 It is a three-dimensional view of the appearance of the oil-water separation device of this utility model;

[0030] Figure 9 It is a sectional three-dimensional view of the oil-water separation device of this utility model;

[0031] Figure 10 Schematic diagram of the spiral blade.

[0032] In the figure, where: feeding basket 1;

[0033] Crushing mechanism 2, crushing shell 201, rotating shaft 202, partition board 203, material passing hole 204, crushing knife 205, pushing plate 206, outlet 207, rotating motor 208;

[0034] Spiral extrusion solid-liquid separation device 3, separation housing 301, cylindrical filter screen 302, spiral shaft 303, spiral blade 304, feeding port 305, discharging port 306, liquid outlet 307, solid waste box 308, driving motor 309;

[0035] Oil-water separation device 4, oil-water separation net 401, water isolation layer 402, separation box 403, waste liquid inlet 404, lower partition board 405, filtering hole 406, upper partition board 407, waste oil box 408, liquid collecting tray 409, drain pipe 410;

[0036] Housing 5. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Figures 1-10 After the household waste treatment machine of the present invention pours the garbage into the feeding basket 1, it starts to work. Under the action of the cutting knife (crushing knife 205), the garbage is chopped. The chopped garbage enters the spiral extrusion equipment under the action of the pushing plate 206. Inside the equipment, the spiral extrusion processor blades stir and extrude the kitchen waste debris for dehydration treatment. The solid waste advances along the spiral blade 304, and the liquid is discharged through the filter screen into the oil-water separation device 4, separating the solid and liquid in the kitchen waste and realizing solid-liquid separation. The liquid after solid-liquid separation flows out through the drain pipe, enters the oil-water separation device 4 for further treatment, the sewage is discharged, and the oil is collected in the waste oil box 408 and can be collected and processed uniformly. The solid kitchen waste after solid-liquid separation enters the solid waste box 308 through the discharging port 306 and can be taken out after collection, completing the household waste treatment of the whole process.

[0038]

[0039] ​The food waste processor consists of a crushing device, a screw extrusion solid-liquid separation device 3, an oil-water separation device 4 and corresponding connecting and collecting devices, all of which can be installed inside the housing of the waste processor. The first part is the crushing mechanism 2. The cutting knives cut the waste in the feeding basket 1 driven by the rotating motor 208. The waste debris chopped by the cutting knives passes through the material passing holes 204 in the partition plate 203 and enters the discharge channel through the outlet 207 driven by the pushing plate 206, going to the second process. The second part will be the screw extrusion solid-liquid separation device 3. The screw blades 304 extrude the food waste debris driven by the driving motor. Under the action of the blades, the purpose of solid-liquid separation is achieved. The waste liquid is discharged through the drain pipe 410 by filtering through the filter screen, and the remaining solids continue to be extruded. After reaching the discharge port 306, they reach the solid waste box 308 through the slideway. The third part is the oil-water separation device 4. The water passing through the oil-water separation net 401 will flow directly through, while the oil will pass through the oil-water separation net 401 and enter the waste oil box 408 through the collection of the oil collecting tray. The specific working process is as follows: After pouring the food waste into the food waste processor equipment, the food waste is chopped by the mechanical cutting knives and broken into tiny waste particles; then it enters the next process, the screw extruder. In this process, the waste is solid-liquid separated, separating the solid waste from the liquid waste; the solid waste after solid-liquid separation enters the solid waste box 308, and the liquid enters the oil-water separation device 4. After passing through the oil-water separation net 401, the oil and water are separated. The separated waste oil enters the waste oil box 408, and the waste water is discharged through the drain pipe 410 into the following water pipeline. The food waste solids after being processed by the food waste processor are in a loose state and can be used as organic fertilizers. After being mixed with soil, they can be used as good planting soil for growing vegetables, trees, flowers, grass, etc. The equipment structure form of the urban household food waste processor is decentralized. Each component completes the processing process assigned to the device. Each component is connected by pipelines, and the material transportation between processes is achieved by extrusion and height difference. This design uses multiple motors, and each part of the food waste processor needs to be provided with a corresponding power source and a processing structure separated from other mechanisms.

[0040] A partition plate 203 is installed under the cutter wheel composed of multiple crushing knives 205. The partition plate 203 is unevenly distributed with round holes with a diameter of 4 mm, namely the material passing holes 204, for isolating the crushed kitchen waste from the large pieces of kitchen waste that have not been crushed. The small pieces of waste crushed by the cutter wheel can pass through, while the large pieces of waste cannot pass through.

[0041] A pushing plate 206 is installed under the partition plate 203. There can be multiple pushing plates 206, which are arranged at circumferential intervals around the rotating shaft 202. Driven by the motor, the rotating shaft 202 rotates, causing the pushing plate 206 to rotate coaxially with the cutter wheel to perform work. The tiny kitchen waste that has been broken by the cutter wheel and can pass through the partition plate 203 is pushed into the discharge channel (coming out from the outlet 207) to reach the next processing step. This step is mainly for the treatment of kitchen waste with relatively low hardness and high viscosity generated at home.

[0042] The spiral shaft 303 is driven to rotate by the drive motor 309. The material discharged into the feeding port 305 is squeezed under the drive of the blades and discharged through the filter screen. The solid continues to be squeezed until it reaches the discharge port 306 and is discharged, achieving the effect of solid-liquid separation.

[0043] In the utility model, the pitch of the feeding section in the front part of the spiral blade 304 is slightly larger and gradually decreases in the compression section and the discharge section, increasing the extrusion pressure and facilitating solid-liquid separation.

[0044] The separation housing 301 of the screw extrusion solid-liquid separation device 3 and the cylindrical filter screen 302 have the diameter of the feeding end of the spiral shaft 303 and the blade enlarged relative to the diameters of other positions (making the cylindrical filter screen 302 in a stepped shape. The separation housing 301 can be a similar shape to the cylindrical filter screen 302, but larger than the cylindrical filter screen 302 and can cover the cylindrical filter screen 302. See Figure 6 and Figure 7 ), preventing overflow when the flow rate of kitchen waste is large and enabling the kitchen waste entering the screw extrusion solid-liquid separation device 3 to be better transported through the screw extrusion blades. Small holes are evenly distributed on the filter screen, facilitating the waste liquid after solid-liquid separation to flow out through the gap between the filter screen and the housing. The filter screen is directly connected to the discharge port 306 to prevent the waste liquid from flowing back into the filter screen. There are openings at both ends of the housing to facilitate the installation and fixation of the spiral shaft 303 and the blades, reserving the installation position for the bearings. There are four support feet at the lower part of the housing, and the support feet are provided with installation holes.

[0045] The discharge of sewage after the treatment of kitchen waste will cause environmental pollution. Therefore, during the development of kitchen waste treatment equipment, research on sewage treatment also needs to be carried out. At present, most kitchen waste treatment equipment at home and abroad has adopted an oil-water separation mechanism. There are many technologies for the treatment of kitchen waste sewage, but they all have their limitations, such as complex treatment equipment, low space utilization rate, and secondary pollution problems. And there is a method that provides a new way for the treatment of kitchen waste sewage, that is, superhydrophobic and superoleophilic materials, which use the extreme hydrophilic and hydrophobic properties of this material for oil-water separation.

[0046] The reason why superhydrophobic and oleophilic materials allow oil to pass through while water flows away from their surfaces is that the principle of their hydrophobicity and oleophilicity lies in the different surface tensions of oil and water. Different materials have different hydrophilicities due to their different chemical compositions and surface roughnesses.

[0047] Hydrophobic materials are inexpensive, and their preparation methods are diverse. They are also widely used in various industries. For example, they are applied in water supply pipelines to reduce the resistance of water flow in the pipelines and the water loss rate. In the automotive industry, such materials act as surface coatings for car paint to protect the paint. Since many hydrophobic materials have anti-corrosion properties, they are also widely used in metal anti-corrosion and anti-corrosion in the manufacturing of steel equipment. In recent years, hydrophobic materials have also been widely used in sewage treatment, mainly using membrane separation technology. The sewage is passed through a superhydrophobic material membrane to separate the oil and water in the sewage.

[0048] The superhydrophobic and oleophilic material is made into an oil-water separation net 401 and applied to urban household food waste processors. By querying the data, it can be known that the oil-water separation net 401 made of superhydrophobic and oleophilic material can be used for a long time. Without being affected by other factors, each oil-water separation net 401 can be reused more than two thousand times.

[0049] The wastewater in the food waste enters the oil-water separation tank 403 after being separated by the solid-liquid separation device. The lower partition 405 and the oil-water separation net 401 divide the separation tank 403 into three parts: a separation space above the oil-water separation net 401, an oil isolation layer below the oil-water separation net 401, and a water isolation layer 402 at the tail of the oil-water separation net 401. The upper partition 407 is L-shaped and encloses the waste liquid inlet 404 to form a liquid inlet space, so that the waste liquid passes through the fine holes (filter holes 406) on the vertical part of the upper partition 407 and then passes through the oil-water separation net 401. The water will flow directly from the oil-water separation net 401 to the water isolation layer 402, while the oil will pass through the oil-water separation net 401 to the oil isolation layer. The treated wastewater can be directly discharged through the drain pipe 410 connected to the sewage pipe without polluting the environment. The liquid entering the oil-water separation tank 403 will first pass through the filter holes 406 of the upper partition 407 and then enter the oil-water separation net 401, which can filter out some solid particles.

[0050] The oil stains that come to the oil isolation layer through the oil-water separation net 401 can be gathered together through the liquid collecting tray 409 and enter the waste oil box 408. The collected oil can be used for other purposes, such as being used as raw materials for making other energy sources. The structure of this oil-water separation device 4 is very simple. In actual use, the size of the fine holes can also be controlled to extend the time for the wastewater to flow through the oil-water separation net 401, achieving a more thorough oil-water separation goal.

[0051] The housing 5 of the present utility model is designed according to the cooperation and installation of the crushing device, the solid-liquid separation device and the oil-water separation device 4. Installation holes and openings for each device are reserved on the housing to facilitate the installation and cooperation of the devices, and pull openings for the solid waste box 308 and the waste oil box 408 are reserved.

[0052] The housing box cover and the box body are fixed by buckles and can be directly opened with one hand.

Claims

1. A household food waste processor, comprising a feeding basket (1), characterized in that, It also includes a crushing mechanism (2) which receives the garbage output from the feeding basket (1) and crushes the garbage; a screw extrusion solid-liquid separation device (3) which receives the garbage processed by the crushing mechanism (2). The separation device has a separation housing (301). A cylindrical filter screen (302) is fixedly arranged at intervals inside the separation housing (301). A screw shaft (303) is rotatably connected between the two axial ends of the separation housing (301). Screw blades (304) placed inside the cylindrical filter screen (302) are fixed on the screw shaft (303). An inlet (305) and an outlet (306) are also arranged at both ends of the separation housing (301). The cylindrical filter screen (302) communicates with the inlet (305) and the outlet (306). A liquid outlet (307) is communicated with the bottom of the separation housing (301). The pitch of the screw blades (304) gradually decreases from the inlet (305) to the outlet (306); an oil-water separation device (4) which is used to receive the liquid output from the liquid outlet (307) and output the separated waste water and waste oil.

2. The household kitchen waste processor according to claim 1, characterized in that, The feeding basket (1) is in the shape of a funnel with a large top and a small bottom.

3. A household food waste processor according to claim 1, characterized in that, The crushing mechanism (2) includes a crushing housing (201). The upper part of the crushing housing (201) communicates with the feeding basket (1), and the lower part communicates with the screw extrusion solid-liquid separation device (3). A rotating shaft (202) is rotatably connected inside the crushing housing (201). An isolation plate (203) which divides the crushing housing (201) into two parts is fixed inside the crushing housing (201). A plurality of material passing holes (204) are formed in the isolation plate (203). A plurality of crushing knives (205) fixed on the rotating shaft (202) are arranged in the space above the isolation plate (203). A pushing plate (206) fixed on the rotating shaft (202) is arranged in the space below the isolation plate (203). An outlet (207) is formed in a part of the side wall of the crushing housing (201) close to its bottom. The pushing plate (206) pushes the material to the outlet (207) and then into the inlet (305) of the screw extrusion solid-liquid separation device (3).

4. A household food waste processor according to claim 3, wherein, The rotating shaft (202) extends downward out of the crushing housing (201), and the extended part is driven by a rotating motor (208).

5. The household food waste processor according to claim 1, characterized in that, The cylindrical filter screen (302) is in a stepped shape, and the diameter near the inlet (305) is larger than that of the rest part.

6. The household kitchen waste processor according to claim 1, characterized in that, A solid garbage box (308) is arranged below the outlet (306) of the screw extrusion solid-liquid separation device (3).

7. A household food waste processor according to claim 1, characterized in that, The oil-water separation device (4) includes a flow-through channel. An oil-water separation net (401) is installed inside the channel. The lower part of the oil-water separation net (401) is an oil isolation layer, and the tail of the oil-water separation net (401) is connected to a water isolation layer (402).

8. A household food waste processor according to claim 7, characterized in that, The oil-water separation device (4) includes a separation tank (403). An inclined oil-water separation net (401) is arranged in the separation tank (403). A waste liquid inlet (404) is arranged on the separation tank (403) at the higher side of the oil-water separation net (401). The waste liquid inlet (404) is used to receive the waste liquid from the liquid outlet (307). The lower end of the oil-water separation net (401) is the tail end, and a lower partition plate (405) is fixed between the tail end and the separation tank (403).

9. The household food waste disposer according to claim 8, wherein, An upper partition plate (407) is connected between the higher end of the oil-water separation net (401) and the separation tank (403). The waste liquid inlet (404) is arranged above the separation tank (403) on the side of the upper partition plate (407) facing away from the oil-water separation net (401). A plurality of filter holes (406) are formed in the upper partition plate (407).

10. A household food waste processor according to claim 8, characterized in that, The oil isolation layer is a waste oil box (408). A funnel-shaped liquid collecting tray (409) is connected to the lower part of the oil-water separation net (401). The lower end of the liquid collecting tray (409) communicates with the inside of the waste oil box (408). The water isolation layer (402) communicates with a drain pipe (410) discharging outwards.

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