Kitchen garbage treatment device

Abstract

The utility model relates to garbage treatment technical field, specifically disclose a kind of kitchen garbage treatment device, comprising: homogenizer, including homogenizer body, material cavity and the first fixed rod being set through the material cavity;Water storage tank, detachable sleeve is set in the outside of homogenizer, the water storage tank includes water storage tank inner wall and water storage tank outer wall, the water storage tank inner wall and water storage tank outer wall are enclosed to form water storage cavity;Biogas residue tank, including biogas residue tank body, biogas residue storage cavity, the second fixed rod being set through the biogas residue storage cavity;Driving device, the driving device is connected with biogas residue tank body transmission. Compared with traditional incineration method and anaerobic fermentation method, the heat generated by homogenizer is used for anaerobic tank heat preservation through heat exchange, reduces heat consumption and the use of anaerobic zone cooling tower, reduces operating expense, after expense reduction, reduce the use of incineration method, also can reduce pollution. Meanwhile, set biogas residue tank and homogenizer as combined device reduces floor area, reduces kitchen waste treatment system equipment, operation is more simple and convenient.

Description

Technical Field

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

[0002] With urban development and population growth, the amount of food waste is increasing. Because many cities and regions lack facilities for food waste treatment, the environmental pollution caused by food waste is becoming increasingly serious. Therefore, efficient collection and treatment of food waste can effectively reduce environmental pollution. Current food waste treatment methods mainly include the following: Incineration is a method of treating food waste by mixing pre-treated food waste with fuel and burning it to completely oxidize and decompose the combustible components. Disadvantages of incineration include: the generation of toxic and harmful air pollutants such as dioxins during the incineration process, which can cause environmental damage if left untreated; the high moisture content of food waste (generally above 80%) necessitating pre-treatment; and the low calorific value requiring a large amount of fuel to be added during combustion. Sanitary landfill is a method of burying pre-treated and disinfected kitchen waste underground. Disadvantages of sanitary landfill include: it consumes a large amount of land resources; it easily generates landfill gas and dust; and if leachate generated during the landfill process is not properly treated, it can cause secondary environmental pollution, easily leading to soil and groundwater contamination. Aerobic composting is a process that utilizes aerobic microorganisms to degrade the organic matter in pre-treated kitchen waste under aerobic conditions, ultimately forming stable, highly fertile humus. Disadvantages of aerobic composting include: a longer composting time, requiring a certain amount of land, and relatively poorer sanitation conditions. Anaerobic fermentation refers to the process of degrading organic matter in pre-treated kitchen waste using anaerobic microorganisms under anaerobic conditions, ultimately forming stable, highly fertile humus and biogas. Disadvantages of anaerobic fermentation: Anaerobic fermentation is divided into wet anaerobic fermentation and dry anaerobic fermentation. The disadvantage of wet anaerobic fermentation is that the resulting biogas residue and slurry require further treatment. The disadvantage of dry anaerobic fermentation is that it is prone to localized acidification due to uneven processing.

[0003] Existing methods for treating food waste generally suffer from severe pollution and high processing costs. Compared to incineration, the cost of anaerobic digestion of food waste is often several times higher, leading many catering businesses to prefer transporting their food waste to waste incineration plants. Therefore, it is necessary to provide a food waste treatment device to address the technical problems of severe pollution, high energy consumption costs, and large land area requirements associated with existing technologies. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an environmentally friendly, low-cost, and space-saving kitchen waste treatment device. The technical solution is as follows: A kitchen waste disposal device, comprising: A homogenizing tank includes a homogenizing tank body, a material cavity enclosed by the homogenizing tank body, and a first fixing rod disposed through the material cavity. The homogenizing tank body is configured to rotate around the first fixing rod, and the first end of the first fixing rod is also connected to the material cavity for inputting homogenizing tank material into the material cavity from the first end of the first fixing rod. A water storage tank is detachably fitted outside a homogenizing tank. The water storage tank includes an inner wall and an outer wall, which together form a water storage cavity. A biogas residue tank includes a biogas residue tank body, a biogas residue storage cavity enclosed by the biogas residue tank body, and a second fixing rod that passes through the biogas residue storage cavity. The biogas residue tank body is configured to rotate around the second fixing rod. The first end of the second fixing rod is also connected to the biogas residue storage cavity for inputting biogas residue tank material into the biogas residue storage cavity from the first end of the second fixing rod. The driving device is configured such that the inner wall of the water storage tank is connected to the homogenizing tank body, the outer wall of the water storage tank is connected to the biogas residue tank body, and the driving device is connected to either the biogas residue tank body or the water storage tank.

[0005] As a further improvement to the above technical solution: Both the outer wall of the water storage tank and the outer wall of the biogas residue tank body are equipped with matching gears for transmission connection between the outer wall of the water storage tank and the biogas residue tank body. The inner wall of the water storage tank and the outer wall of the homogenizing tank body are interference-fitted for transmission connection between the inner wall of the water storage tank and the homogenizing tank body.

[0006] As a further improvement to the above technical solution: The first end of the first fixing rod is provided with a first inlet, which is used for the material from the external homogenizing tank to enter the first fixing rod from the first inlet; The portion of the first fixing rod located inside the material chamber is provided with a first outlet, through which the homogenizing tank material inside the first fixing rod enters the material chamber.

[0007] As a further improvement to the above technical solution: The second end of the first fixing rod is connected to a material outlet pipe, and a homogenizer butterfly valve, a homogenizer thermometer, and a homogenizer power pump are installed on the material outlet pipe.

[0008] As a further improvement to the above technical solution: The first fixed rod or the inner wall of the homogenizing tank body used to enclose and form the material cavity is provided with first fan-shaped plates distributed in a distributed manner. The first fan-shaped plates are foldably connected to the inner wall of the homogenizing tank body through folding connectors.

[0009] As a further improvement to the above technical solution: The top of the water storage chamber is connected to an inlet pipe, and the bottom of the water storage chamber is connected to an outlet pipe. Both the inlet and outlet pipes are equipped with a water tank butterfly valve and a water tank power pump. The outlet pipe is also equipped with a water tank thermometer.

[0010] As a further improvement to the above technical solution: The first end of the second fixing rod is provided with a second inlet, which is used for the material from the external biogas residue tank to enter the second fixing rod from the second inlet; The second fixing rod is provided with a second outlet in a distributed manner in the part located inside the biogas residue storage cavity, so that the material inside the second fixing rod can enter the biogas residue storage cavity through the second outlet; The biogas residue tank body is also equipped with a biogas residue outlet.

[0011] As a further improvement to the above technical solution: The second inlet is connected to a feed pipe, on which a biogas residue tank butterfly valve and a biogas residue tank power pump are installed.

[0012] As a further improvement to the above technical solution: The second fixing rod is provided with distributed second fan-shaped pieces, which are foldably connected to the fixing rod via folding connectors.

[0013] As a further improvement to the above technical solution: It also includes a homogenizing tank base and a biogas residue tank base, with the first fixing rod and the second fixing rod rotatably mounted on the homogenizing tank base and the biogas residue tank base, respectively.

[0014] Compared with the prior art, the advantages of this utility model are: (1) A kitchen waste treatment device of the present invention includes: a homogenizing tank, comprising a homogenizing tank body, a material cavity enclosed by the homogenizing tank body, and a first fixing rod disposed through the material cavity, wherein the homogenizing tank body is configured to be rotatable around the first fixing rod, and the first end of the first fixing rod is also connected to the material cavity for inputting homogenizing tank material into the material cavity from the first end of the first fixing rod; and a water storage tank, detachably sleeved on the outside of the homogenizing tank, wherein the water storage tank includes an inner wall and an outer wall, the inner wall and the outer wall of the water storage tank enclosing a shape The system comprises a water storage chamber and a biogas residue tank, including a biogas residue tank body, a biogas residue storage cavity enclosed by the biogas residue tank body, and a second fixed rod penetrating the biogas residue storage cavity. The biogas residue tank body is rotatable around the second fixed rod, and the first end of the second fixed rod is connected to the biogas residue storage cavity for feeding biogas residue material into the biogas residue storage cavity from the first end of the second fixed rod. A driving device is also included, with the inner wall of the water storage tank being drivenly connected to the homogenizing tank body, the outer wall of the water storage tank being drivenly connected to the biogas residue tank body, and the driving device being drivenly connected to either the biogas residue tank body or the water storage tank. Compared to traditional incineration and anaerobic fermentation methods, this invention uses the heat generated by the homogenizing tank for heat exchange to insulate the anaerobic tank. This not only reduces heat consumption but also reduces the use of cooling towers in the anaerobic zone, lowering operating costs. Reduced costs lead to reduced reliance on incineration, which also reduces pollution.

[0015] (2) This utility model combines a biogas residue tank and a homogenizing tank into a single unit, further reducing the floor space required. This not only reduces project investment but also increases the selectivity of project sites. This utility model also reduces the equipment required for the food waste treatment system, making it easier to operate.

[0016] (3) The biogas residue tank of this utility model can not only utilize the residual heat of the homogenizing tank to dry the biogas residue, thus reducing the amount of biogas liquid at the end and further reducing the cost, but also generate a certain amount of nutrient soil for greening and planting, realizing resource recycling and utilization, reducing the energy consumption of anaerobic treatment of kitchen waste, thereby reducing its operating costs. Attached Figure Description

[0017] Figure 1 This is an axial perspective view of a kitchen waste treatment device according to the present invention; Figure 2 for Figure 1 Top view.

[0018] In the attached diagram: 1. Homogenizing tank, 1.1. Homogenizing tank body, 1.2. Material chamber, 1.3. First fixing rod, 1.4. Material outlet pipe, 1.5. Homogenizing tank butterfly valve, 1.6. Homogenizing tank thermometer, 1.7. Homogenizing tank power pump, 1.8. First vane; 2. Water storage tank, 2.1. Water storage chamber, 2.2. Inner wall of water storage tank, 2.3. Outer wall of water storage tank, 2.4. Inlet pipe, 2.5. Outlet pipe, 2.6. Water storage tank butterfly valve, 2.7. Water storage tank power pump, 2.8. Water storage tank thermometer; 3. Sludge tank, 3.1. Sludge tank body, 3.2. Sludge storage chamber, 3.3. Second fixing rod, 3.4. Sludge outlet, 3.5. Feed pipe, 3.6. Sludge tank butterfly valve, 3.7. Sludge tank power pump, 3.8. Second vane; 4. Drive device. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1-2 As shown, a kitchen waste disposal device includes: The homogenizing tank 1 includes a homogenizing tank body 1.1, a material cavity 1.2 enclosed by the homogenizing tank body 1.1, and a first fixing rod 1.3 that passes through the material cavity 1.2. The homogenizing tank body 1.1 is configured to rotate around the first fixing rod 1.3. The first end of the first fixing rod 1.3 is also connected to the material cavity 1.2 for inputting material into the homogenizing tank 1 from the first end of the first fixing rod 1.3. The water storage tank 2 is detachably fitted onto the outside of the homogenizing tank 1 to form an integral structure. The water storage tank 2 includes an inner wall 2.2 and an outer wall 2.3, which together form a water storage cavity 2.1. The water storage tank 2 can be removed from the homogenizing tank 1 and can be directly replaced after aging without affecting the pretreatment of kitchen waste. At the same time, heat energy can be transferred from the homogenizing tank 1 to the water storage tank 2, and also from the water storage tank 2 to the biogas residue tank 3.

[0021] The biogas residue tank 3 includes a biogas residue tank body 3.1, a biogas residue storage cavity 3.2 enclosed by the biogas residue tank body 3.1, and a second fixing rod 3.3 that passes through the biogas residue storage cavity 3.2. The biogas residue tank body 3.1 is configured to rotate around the second fixing rod 3.3. The first end of the second fixing rod 3.3 is also connected to the biogas residue storage cavity 3.2 for inputting material from the first end of the second fixing rod 3.3 into the biogas residue storage cavity 3.2. The driving device is configured such that the inner wall 2.2 of the water storage tank is connected to the homogenizing tank body 1.1, and the outer wall 2.3 of the water storage tank is connected to the biogas residue tank body 3.1. The driving device is also connected to either the biogas residue tank body 3.1 or the water storage tank 2. Preferably, in this embodiment, both the outer wall 2.3 of the water storage tank and the outer wall of the biogas residue tank body 3.1 are equipped with matching gears for the drive connection between them. The inner wall 2.2 of the water storage tank and the outer wall of the homogenizing tank body 1.1 are interference-fitted for the drive connection. This allows the biogas residue tank 3 to be connected to the water storage tank 2 from the side via gears for transmission. When the biogas residue tank 3 rotates, it drives the device consisting of the homogenizing tank 1 and the water storage tank 2 to rotate together, reducing energy consumption.

[0022] The first fixed rod 1.3 has a first inlet at its first end, through which material from the external homogenizing tank 1 enters the first fixed rod 1.3. The portion of the first fixed rod 1.3 located within the material chamber 1.2 has distributed first outlets, through which material from the homogenizing tank 1 within the first fixed rod 1.3 enters the material chamber 1.2. Compared to a single outlet, multiple distributed outlets result in a more uniform flow of material.

[0023] The second end of the first fixing rod 1.3 is connected to a material outlet pipe 1.4. A homogenizer butterfly valve 1.5, a homogenizer thermometer 1.6, and a homogenizer power pump 1.7 are installed on the material outlet pipe 1.4. When the temperature on the homogenizer thermometer 1.6 reaches 34°C~36°C, the homogenizer butterfly valve 1.5 and the homogenizer power pump 1.7 begin to operate, transferring the pretreated material to the anaerobic digester.

[0024] First fan blades 1.8 are distributed on the first fixing rod 1.3 or on the inner wall of the homogenizing tank body 1.1 used to enclose the material cavity 1.2. The first fan blades 1.8 are foldably connected to the inner wall of the homogenizing tank body 1.1 via folding connectors. When the homogenizing tank 1 rotates, it will drive the inner wall of the homogenizing tank body 1.1 to rotate, which will drive the fan blades to stir the material, making the material more uniform and dissipating heat faster. The folding connection allows the fan blades to be connected side by side with the inner wall, facilitating subsequent cleaning of the homogenizing tank 1.

[0025] The top of the water storage chamber 2.1 is connected to an inlet pipe 2.4, and the bottom of the water storage chamber 2.1 is connected to an outlet pipe 2.5. Both the inlet pipe 2.4 and the outlet pipe 2.5 are equipped with a water tank butterfly valve 2.6 and a water tank power pump 2.7. The outlet pipe 2.5 is also equipped with a water tank thermometer 2.8.

[0026] In this embodiment, the water storage tank 2 has an "n" shaped structure and can be removed from the homogenizing tank 1 from the top. When connected, the inner wall 2.2 of the water storage tank is tightly connected to the outer wall of the homogenizing tank 1, which increases the contact area and makes heat transfer more rapid.

[0027] Water is temporarily stored in the water storage chamber 2.1 inside the water storage tank 2. The water inlet pipe 2.4 is located at the top, allowing soft water to be introduced into the water storage tank 2 during use. Once the water temperature inside the inner wall 2.2 of the water storage tank stops rising, the water storage tank butterfly valve 2.6 and the water storage tank power pump 2.7, installed on the water inlet pipe 2.4, open, allowing cold water to enter the water storage chamber 2.1 of the water storage tank 2 through the pipe. This operation is intermittent to reduce power consumption. The water inlet pipe 2.4 needs to be removed after the water has entered.

[0028] The first end of the second fixing rod 3.3 is provided with a second inlet, through which the material from the external biogas residue tank 3 enters the second fixing rod 3.3; The second fixing rod 3.3 located within the biogas residue storage chamber 3.2 has a distributed second outlet, through which material within the second fixing rod 3.3 enters the biogas residue storage chamber 3.2; The biogas residue tank body 3.1 is also equipped with a biogas residue outlet 3.4. When using the biogas residue outlet 3.4 for the first time, a biological agent needs to be added to it. After that, each time the material is poured out, about 10% of the processed material needs to be left for inoculation of the material to be processed later.

[0029] The second inlet is connected to a feed pipe 3.5, on which a biogas residue tank butterfly valve 3.6 and a biogas residue tank power pump 3.7 are installed.

[0030] The second fixing rod 3.3 is provided with distributed second fan-shaped plates 3.8, which are foldably connected to the fixing rod via folding connectors. In a preferred embodiment of this utility model, the driving device is located in the middle of the front cover, with the other end fixed to the base. Under the action of the driving device, the entire biogas residue tank 3 begins to rotate, driving the exterior of the homogenizing tank 1 and the water storage tank 2 to rotate together.

[0031] It also includes a base for a homogenizing tank 1 and a base for a biogas residue tank 3. The first fixing rod 1.3 and the second fixing rod 3.3 are rotatably mounted on the bases of the homogenizing tank 1 and the biogas residue tank 3, respectively. The distance between the biogas residue pipe and the homogenizing tank 1 can be adjusted by moving the bases.

[0032] The specific operation of the kitchen waste treatment device in this embodiment is as follows: A typical food waste treatment plant (including catering waste treatment plants and household food waste treatment plants) usually includes processes such as raw material pretreatment, homogenization tank 1 or homogenization pond treatment, anaerobic treatment, temporary storage of biogas residue, and solid-liquid separation of biogas residue. A typical biogas system includes a pretreatment system, an anaerobic system, a biogas purification system, and a biogas residue and biogas slurry treatment system. In this embodiment, the focus is mainly on the homogenization part and the temporary storage part of biogas residue; other systems follow the existing system. Food waste is collected by vehicles and transported to the waste bin of the food waste treatment plant. After pretreatment steps such as impurity removal, crushing, heating, and three-phase separation (heating and three-phase separation are mainly for extracting gutter oil; the heating temperature is generally around 80°C), the resulting slurry enters the first fixed rod 1.3 through the first inlet and flows out to the material chamber 1.2 through the first outlet.

[0033] Soft water is introduced into the soft water inlet of the water storage tank 2 through the inlet pipe 2.4 and finally flows into the inner wall 2.2 of the water storage tank. A water storage tank butterfly valve 2.6 is installed on the inlet pipe 2.4, and the other end is connected to the water storage tank power pump 2.7. After the water storage chamber 2.1 is full, the water storage tank butterfly valve 2.6 and the water storage tank power pump 2.7 are closed.

[0034] Turn on the drive device of the biogas residue tank 3. Under the action of the drive device, the entire biogas residue tank 3 begins to rotate, which in turn drives the outside of the homogenizing tank 1 and the water storage tank 2 to rotate together.

[0035] Under the action of heat exchange, the temperature of the slurry decreases, and the water temperature in the water storage tank 2 increases. The drive device is turned off, and hot water is transferred to the anaerobic tank through the pipeline to help keep the anaerobic tank warm. At the same time, the biogas residue produced after anaerobic fermentation enters the intermediate rod through the feed pipe 3.5 under the action of the biogas residue tank power pump 3.7, and enters the intermediate rod through the material inlet on the intermediate rod of the second fixed rod 3.3. Then, it enters the biogas residue storage chamber 3.2 through the openings distributed on the intermediate rod.

[0036] Then, turn on the drive device of the biogas residue tank 3. Under the action of heat transfer, heat is transferred to the biogas residue tank 3, causing the internal temperature of the biogas residue storage chamber 3.2 of the biogas residue tank 3 to rise. Before the first use, drying bacteria need to be inoculated through the material outlet on the outer wall of the biogas residue tank 3. In this way, under the action of bacteria and heat, the biogas residue is dried quickly. Finally, the biogas residue after drying is poured out through the material outlet.

[0037] This cycle continues until the slurry is cooled to around 35°C before being transported via pipeline to an anaerobic digester for anaerobic digestion. The anaerobic digester is typically a mesophilic anaerobic digester, with the temperature maintained at around 35°C. The insulation is achieved by wrapping pipes around the outside of the digester wall and circulating hot water through these pipes, which originate from storage tank 2. After anaerobic digestion, the sludge is transported via pipeline to sludge tank 3 for drying. The dried sludge can then be further composted or transported to a waste incineration plant. Once the water temperature in the pipes on the outer wall of the anaerobic digester decreases, it is transported back to storage tank 2 via pipeline. Through heat exchange, the temperature of the material in homogenizing tank 1 decreases, while the temperature of the water in storage tank 2 increases, thus effectively saving thermal energy.

[0038] Taking a food waste treatment project in a prefecture-level city in northern my country as an example, the region has a resident population of approximately 615,000 (data from the 7th National Population Census), and collects approximately 50 tons of food waste daily (collecting only from catering establishments, government canteens, and school canteens in urban areas, excluding household kitchen waste). The physicochemical properties of the food waste in this region are shown in the table below: Table 1 Physical composition of food waste

[0039] Table 2 Typical physicochemical properties of food waste (TS: Total Solids)

[0040] If a traditional wet anaerobic digestion process is used, the biogas digestion system requires a homogenizer 1, a cooling tower, and a sludge tank 3, in addition to the anaerobic digester. In terms of floor space, the homogenizer 1 has an effective volume of 50 m³ and occupies approximately 28.26 m² (homogenizer 1 has a diameter of 6 m and a maximum height of 3 m). The sludge tank 3 also has an effective volume of 50 m³ and occupies approximately 28.26 m² (sludge tank 3 has a diameter of 6 m and a maximum height of 3 m). The cooling tower occupies approximately 7 m² (considering the foundation), for a total floor space of approximately 64 m². However, if the multi-functional homogenizer 1 of this application is used for a kitchen waste treatment plant, the total floor space is only 28.26 m², saving approximately 36 m². Regarding operating costs, if a traditional wet anaerobic digestion process is used, the main considerations are the energy consumption of the cooling tower and the energy consumption of the anaerobic digester's insulation.

[0041] The cooling tower has a rated power of 3.5kW, operates for 10 hours a day, and consumes 35 kWh of electricity per day.

[0042] The energy consumption for the anaerobic digester's insulated operation is calculated as follows: 1) Outdoor air calculation parameters Average annual temperature: 14.9℃; Outdoor design temperature for heating: -2.1℃; Winter ventilation outdoor design temperature: 1.4℃; Summer outdoor design temperature for air conditioning: 30.1℃; Average outdoor wind speed in summer: 2 m / s; Winter atmospheric pressure: 1011.2 hPa; Summer atmospheric pressure: 990.4 hPa.

[0043] The highest extreme temperature recorded over the years is 41.4℃. Annual extreme minimum temperature: -17.5℃; See the table below for details: Table 3 Annual Meteorological Data for the City

[0044] 2) Calculation of heat energy consumption in anaerobic digester The process heat mainly consists of the heat from the fermentation tank, primarily used to maintain the fermentation temperature required throughout the year, ensuring an internal temperature of 35℃±2℃ during fermentation. The monthly design heat load is estimated based on the city's average monthly temperature. The design heat load mainly considers the heat dissipation from the tank. According to calculations, the biogas consumption required for heating the anaerobic tank is approximately 70.68 Nm³.

[0045] Table 4 Calculation Table

[0046] Note: (1) Consider one anaerobic tank with a capacity of 2500m³ and a residence time of 38-45 days.

[0047] (2) The calorific value of methane is 8575 kcal / Nm3 and the content is 55%; the boiler working time is calculated as 20 hours.

[0048] If the multifunctional homogenizing tank 1 of the kitchen waste treatment plant of this application is used, it can save 35 kWh of electricity and 70.68 Nm³ of biogas per day.

[0049] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A kitchen waste treatment device, characterized in that, include: A homogenizing tank includes a homogenizing tank body, a material cavity enclosed by the homogenizing tank body, and a first fixing rod disposed through the material cavity. The homogenizing tank body is configured to rotate around the first fixing rod, and the first end of the first fixing rod is also connected to the material cavity for inputting homogenizing tank material into the material cavity from the first end of the first fixing rod. A water storage tank is detachably fitted outside a homogenizing tank. The water storage tank includes an inner wall and an outer wall, which together form a water storage cavity. A biogas residue tank includes a biogas residue tank body, a biogas residue storage cavity enclosed by the biogas residue tank body, and a second fixing rod that passes through the biogas residue storage cavity. The biogas residue tank body is configured to rotate around the second fixing rod. The first end of the second fixing rod is also connected to the biogas residue storage cavity for inputting biogas residue tank material into the biogas residue storage cavity from the first end of the second fixing rod. The driving device is configured such that the inner wall of the water storage tank is connected to the homogenizing tank body, the outer wall of the water storage tank is connected to the biogas residue tank body, and the driving device is connected to either the biogas residue tank body or the water storage tank.

2. The kitchen waste treatment device according to claim 1, characterized in that, Both the outer wall of the water storage tank and the outer wall of the biogas residue tank body are equipped with matching gears for transmission connection between the outer wall of the water storage tank and the biogas residue tank body. The inner wall of the water storage tank and the outer wall of the homogenizing tank body are interference-fitted for transmission connection between the inner wall of the water storage tank and the homogenizing tank body.

3. The kitchen waste treatment device according to claim 1, characterized in that, The first end of the first fixing rod is provided with a first inlet, which is used for the material from the external homogenizing tank to enter the first fixing rod from the first inlet; The portion of the first fixing rod located inside the material chamber is provided with a first outlet, through which the homogenizing tank material inside the first fixing rod enters the material chamber.

4. The kitchen waste treatment device according to claim 3, characterized in that, The second end of the first fixing rod is connected to a material outlet pipe, and a homogenizer butterfly valve, a homogenizer thermometer, and a homogenizer power pump are installed on the material outlet pipe.

5. The kitchen waste treatment device according to claim 1, characterized in that, The first fixed rod or the inner wall of the homogenizing tank body used to enclose and form the material cavity is provided with first fan-shaped plates distributed in a distributed manner. The first fan-shaped plates are foldably connected to the inner wall of the homogenizing tank body through folding connectors.

6. The kitchen waste treatment device according to claim 1, characterized in that, The top of the water storage chamber is connected to an inlet pipe, and the bottom of the water storage chamber is connected to an outlet pipe. Both the inlet and outlet pipes are equipped with a water tank butterfly valve and a water tank power pump. The outlet pipe is also equipped with a water tank thermometer.

7. The kitchen waste treatment device according to claim 1, characterized in that, The first end of the second fixing rod is provided with a second inlet, which is used for the material from the external biogas residue tank to enter the second fixing rod from the second inlet; The second fixing rod is provided with a second outlet in a distributed manner in the part located inside the biogas residue storage cavity, so that the material inside the second fixing rod can enter the biogas residue storage cavity through the second outlet; The biogas residue tank body is also equipped with a biogas residue outlet.

8. The kitchen waste treatment device according to claim 7, characterized in that, The second inlet is connected to a feed pipe, on which a biogas residue tank butterfly valve and a biogas residue tank power pump are installed.

9. The kitchen waste treatment device according to claim 8, characterized in that, The second fixing rod is provided with distributed second fan-shaped pieces, which are foldably connected to the fixing rod via folding connectors.

10. The kitchen waste treatment device according to any one of claims 1-9, characterized in that, It also includes a homogenizing tank base and a biogas residue tank base, with the first fixing rod and the second fixing rod rotatably mounted on the homogenizing tank base and the biogas residue tank base, respectively.

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