Resource utilization process and equipment for kitchen garbage

Abstract

The invention relates to the technical field of waste resource recycling, and discloses a kitchen garbage resource utilization process and equipment. The process comprises the following steps: arranging a special garbage can to collect kitchen garbage, transferring the kitchen garbage to a transfer barrel, transporting the kitchen garbage to a collecting tank, carrying out solid-liquid separation and solid crushing, fermenting liquid to prepare a biological liquid organic fertilizer, drying the solid, extruding to prepare feed, and finally packaging and selling. The equipment comprises a garbage can, a treatment device, a pulverizer, a fermentation device, a dryer and an extruder, the garbage can has deodorization and monitoring functions, the treatment device can treat garbage in a classified mode, the fermentation device can control the temperature, all the equipment is electrically connected with a central system, and data management and equipment scheduling are facilitated. The invention solves the problems of low kitchen garbage treatment efficiency, serious pollution and the like in the prior art, and realizes resource utilization of kitchen garbage.

Description

Technical Field

[0001] The present invention relates to the technical field of waste resource recycling, and more specifically to a process and equipment for recycling kitchen waste. Background Art

[0002] In modern life, hotels, household kitchens, canteens, farmers' markets and various food processing plants generate a large amount of kitchen waste every day. These kitchen wastes contain a large amount of nutrients, various trace elements and nutrients, and have a high surplus value. If they are used, they can generate very high value. With the improvement of living facilities and living conditions in cities and rural areas, the production of kitchen waste is also increasing year by year. At the same time, the government and the people have increased their awareness of garbage classification and have a higher awareness of recycling usable kitchen waste. Therefore, how to make resourceful use of these kitchen wastes has become a current problem.

[0003] At present, the existing kitchen waste treatment methods have the problems of large government investment, high cost, low efficiency and serious pollution. Based on this, this application is proposed to try to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a process for resource utilization of kitchen waste, comprising the following steps:

[0005] S1. Including but not limited to setting up special garbage bins for collecting kitchen waste in hotels, canteens, food processing plants, farmers' markets and household kitchen waste recycling areas;

[0006] S2, transferring the kitchen waste in the collected garbage bins to a transfer bin, and transporting the transfer bin to a centralized location by a transport vehicle for preliminary screening and collection into a collection pool;

[0007] S3, the garbage in the collection pool is separated into solid and liquid garbage by a processing device, and then the solid garbage is crushed by a crusher;

[0008] S4, adding biological bacteria to liquid waste for fermentation to produce biological liquid organic fertilizer, and drying and extruding solid waste to produce animal feed;

[0009] S5. Package and sell the bio-liquid organic fertilizer and feed separately to realize the resource utilization of kitchen waste.

[0010] The present invention is further configured as follows: in the step S1, CJEM bacteria are added to the trash can.

[0011] The present invention is further configured as follows: in step S2, CJEM bacteria are sprayed in the collection pool.

[0012] The present invention is further configured as follows: in step S4, 1% CJEM bacteria by weight of the liquid garbage is added for fermentation, the fermentation conditions are anaerobic fermentation, the temperature is 20-30°C; the drying and sterilization temperature is 80-120°C, and the duration is 2-4h; the extrusion pressure is 2-5MPa.

[0013] The present invention is further configured as follows: the CJEM bacteria include 25%-35% lactic acid bacteria, 20%-30% yeast, 15%-25% photosynthetic bacteria, 10%-20% actinomycetes, and 5%-10% other microorganisms capable of decomposing starch and protein.

[0014] The present invention is further configured as follows: the drying temperature is firstly 100-120° C., drying for 1-1.5 hours, and then the drying temperature is reduced to 80-90° C., drying for 1-2.5 hours.

[0015] The present invention further provides a device for resource utilization of kitchen waste, which adopts the above-mentioned process and includes a garbage can, a processing device, a crusher, a fermentation device, a dryer and an extruder. The lid of the garbage can is provided with a accommodating chamber connected to the inside of the can. The accommodating chamber is provided with an odor sensor, a deodorant and a circulating fan. After the odor sensor detects that odor is generated in the can, the circulating fan is started to enhance the gas flow between the gas in the can and the deodorant to remove the odor.

[0016] The present invention is further configured as follows: a supporting foot is provided at the bottom of the trash can, and a pressure sensor is provided at the bottom of the supporting foot.

[0017] The present invention is further configured as follows: the processing device includes two symmetrically arranged conveying chains, and there are a number of cross bars arranged at intervals between the two conveying chains. The processing device also includes a vibration plate and an electromagnet. The vibration plate is provided in two groups and is respectively located under the two conveying chains. The vibration plate can drive the conveying chain to vibrate, and small spikes are provided on the cross bar; the electromagnet is arranged at the rotating part of the conveying chain.

[0018] The present invention is further configured as follows: the fermentation device comprises a fermentation tank, the fermentation tank is wrapped with a circulating water jacket on the outside, a sealing cover is provided on the fermentation tank, a temperature sensor is provided in the sealing cover, and a probe of the temperature sensor extends into the fermentation tank.

[0019] The present invention is further configured to include a central system, wherein the garbage bin, the processing device, the crusher, the fermentation device, the dryer and the extruder are all electrically connected to the central system and transmit the garbage processing data to the central system.

[0020] In summary, the present invention has the following beneficial effects:

[0021] The present invention sets a special trash can to accurately collect kitchen waste, improves processing efficiency and recycling purity; adding CJEM bacteria to the trash can can inhibit the growth of harmful microorganisms, prevent the garbage from stinking in a short time, and protect the health of the staff. At the same time, the transfer barrel has good sealing performance, reduces transportation pollution, and is convenient for centralized processing; the collection pool sprays CJEM bacteria for preliminary odor prevention and prevents nutrient loss; the processing device classifies and processes different types of garbage through solid-liquid separation, screening and magnetic attraction, etc., to improve resource utilization. Liquid garbage is anaerobicly fermented with CJEM bacteria to produce biological liquid organic fertilizer, and solid garbage is dried and extruded to produce animal feed, realizing resource utilization; reasonable control of drying temperature and time can not only ensure drying effect, but also retain nutrients, reduce energy consumption and cost. The odor sensor, deodorant and circulation fan in the trash can work together to effectively remove odor; the pressure sensor can monitor the weight of the garbage, which is convenient for timely cleaning; the fermentation device can accurately control the temperature to ensure the fermentation effect. The central system collects data from each device, realizes data tracing, coordinated scheduling and fault warning, improves the overall efficiency of garbage treatment, and ensures the normal progress of treatment work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a process flow chart of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the garbage can of the equipment of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the processing device of the equipment of the present invention.

[0025] Figure 4 The fermentation tank structure of the device of the present invention is a schematic diagram.

[0026] Figure numerals: 1. trash can; 2. containing chamber; 3. odor sensor; 4. deodorant; 5. circulating fan; 6. supporting foot; 7. pressure sensor; 8. processing device; 801. liquid collection frame 8011. screen; 802. solid collection frame; 803. magnetic metal collection frame; 9. conveyor chain; 10. cross bar; 11. vibration plate; 1101. vibration motor; 12. electromagnet; 13. small spikes; 14. fermentation tank; 15. circulating water jacket; 1501. circulating chamber; 1502. water inlet; 1503. water outlet; 16. sealing cover; 17. temperature sensor. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0028] This embodiment discloses a process for recycling kitchen waste. Figure 1 As shown, the following steps are included:

[0029] S1, including but not limited to setting up special trash cans for collecting kitchen waste in hotels, canteens, food processing plants, farmers' markets and household kitchen waste recycling places; by setting up special trash cans, kitchen waste can be accurately collected to avoid mixing with other garbage, improve subsequent processing efficiency and resource recovery purity, and at the same time, enhance people's environmental awareness, promote the formation of garbage classification habits in the whole society, and promote the development of garbage source classification. At the same time, the resource utilization of this embodiment can better solve the problem of dry and wet separation of household kitchen waste.

[0030] S2. Transfer the kitchen waste in the collected garbage bins to the transfer bins, and transport the transfer bins to the centralized location by transport vehicles for preliminary screening and collection in the collection pool; the transfer bins must be well sealed to reduce leakage and odor of kitchen waste during transportation, reduce environmental pollution, and protect environmental sanitation along the transportation route. After being transported to the centralized location, manual preliminary screening can be performed to remove obvious debris such as nylon bags, and then collected in the collection pool to facilitate unified scheduling and arrangement of subsequent centralized processing work, reasonably arrange processing equipment and manpower, and improve the orderliness and coordination of the processing process.

[0031] S3. The garbage in the collection pool is separated into solid and liquid garbage by a processing device, and then the solid garbage is crushed by a pulverizer; the solid-liquid separation enables the different resources in the liquid and solid to be processed separately, which is convenient for the subsequent production of biological liquid organic fertilizer and animal feed, and improves resource utilization. At the same time, after the solid garbage is crushed, the surface area of ​​the material is increased, which is conducive to the subsequent drying, extrusion and other processing processes, improving the processing efficiency and shortening the processing time.

[0032] S4. Liquid waste is fermented into bio-liquid organic fertilizer by adding biological bacteria, and solid waste is dried and extruded to make animal feed. Liquid waste is fermented into bio-liquid organic fertilizer by adding biological bacteria, and solid waste is dried and extruded to make animal feed, converting the original waste into products with economic value, realizing the resource utilization of nutrients in kitchen waste, converting the organic components into fertilizer and feed, returning them to agricultural production and breeding, and promoting the sustainable use of resources.

[0033] S5. Package and sell bio-liquid organic fertilizer and feed separately, integrating the process into one, to realize resource utilization of kitchen waste.

[0034] Further, in step S1, CJEM bacteria are added to the trash can. CJEM bacteria are composed of a variety of microorganisms such as lactic acid bacteria, yeast, photosynthetic bacteria, and actinomycetes. Beneficial bacteria such as lactic acid bacteria in CJEM bacteria will produce acidic substances such as lactic acid during the growth and reproduction process, reduce the pH value of the environment, thereby inhibiting the growth and reproduction of some harmful microorganisms such as spoilage bacteria, and reducing the odor substances produced by the decomposition of organic matter by harmful microorganisms. Yeast can ferment sugars in kitchen waste to produce carbon dioxide and alcohol. Carbon dioxide can create a relatively anaerobic environment, which is conducive to anaerobic microorganisms to play a better role; the substances produced by further oxidation and decomposition of alcohol can participate in the subsequent fermentation process. Microorganisms such as photosynthetic bacteria can use odor substances such as hydrogen sulfide as a nutrient source for metabolism, converting them into harmless substances, thereby achieving the effect of deodorization. Therefore, by adding CJEM bacteria, it is ensured that the internal garbage does not stink and does not produce waste gas within a short period of 1-2 days, thereby protecting the health of environmental protection workers. The addition method can be directly sprayed, and the prepared CJEM bacterial solution is evenly sprayed on the kitchen waste to ensure that the surface of the garbage can be exposed to the bacterial solution. Generally speaking, 500-1000 ml of CJEM solution can be sprayed for every 10 kg of kitchen waste. If frequent spraying is not possible, the required CJEM solution can be added to the trash can in advance, which can also ensure deodorization in a short period of time. The CJEM solution can be added when the trash can is emptied next time. This saves working time and is suitable for situations where the trash can is set up over a large area but there are fewer environmental protection staff.

[0035] Furthermore, in step S2, CJEM bacteria are sprayed in the collection pool. Spraying CJEM in the collection pool is used to achieve preliminary odor prevention and prevent nutrient loss, ensuring that the garbage in the collection pool will not be decomposed by harmful bacteria and produce odor while waiting for treatment. The amount of spraying is sufficient to cover the surface of the garbage with bacterial liquid.

[0036] Furthermore, in step S4, 1% of the weight of the garbage is added to CJEM bacteria, which can provide sufficient microbial biomass for fermentation, ensure the rapid formation of dominant bacteria in the kitchen waste, effectively start anaerobic fermentation, accelerate the decomposition of organic matter, and reduce the generation of odor; the fermentation conditions are anaerobic fermentation, the temperature is 20-30°C; the drying and sterilization temperature is 80-120°C, and it lasts for 2-4h; the extrusion pressure is 2-5MPa. Furthermore, the drying temperature is first 100-120°C, and the drying is carried out for 1-1.5h, and then the drying temperature is reduced to 80-90°C and the drying is carried out for 1-2.5h. In the initial stage, a high temperature of 100-120℃ is used for drying, which can quickly evaporate and kill the moisture and bacteria in the kitchen waste, and quickly remove most of the free water within 1-1.5 hours. After high-temperature sterilization and drying, it is dried and sterilized at 80-90℃, which can slowly migrate and evaporate the moisture from the inside of the material to the surface, and further remove the remaining moisture within 1-2.5 hours. While ensuring the drying effect, it prevents the garbage material from being scorched and deteriorated due to long-term high temperature, maintains the original quality and characteristics of the material, avoids the destruction of the nutrients in it by long-term drying at too high a temperature, and retains the nutrients in it to the greatest extent, improving the quality and nutritional value of subsequent feed products. In addition, the high-temperature stage is short, mainly using high temperature to quickly evaporate a large amount of water, and the energy required for the subsequent low-temperature stage is relatively low. Overall, it is more energy-efficient than using high-temperature drying all the time, reducing energy consumption and production costs.

[0037] Furthermore, in this embodiment, the CJEM bacteria include 25%-35% lactic acid bacteria, 20%-30% yeast, 15%-25% photosynthetic bacteria, 10%-20% actinomycetes, and 5%-10% other microorganisms that can decompose starch and protein. Among them, lactic acid bacteria can produce lactic acid through metabolism, reduce the pH value of the environment, inhibit the growth of harmful microorganisms such as Escherichia coli and Salmonella, reduce the odor of kitchen waste caused by harmful bacteria decomposing organic matter, and promote the decomposition and conversion of substances such as protein and sugar; yeast can use sugars in kitchen waste to ferment and produce carbon dioxide and alcohol. Carbon dioxide can create a relatively anaerobic environment, which is conducive to anaerobic microorganisms to play a better role; substances produced by further oxidation and decomposition of alcohol can participate in the subsequent fermentation process; photosynthetic bacteria can use light energy for photosynthesis, and can also use odorous substances such as hydrogen sulfide as nutrient sources for metabolism, converting them into harmless substances, effectively removing odors, and providing a suitable living environment for other microorganisms; actinomycetes can produce antibiotics, inhibit harmful bacteria, maintain the ecological balance of microorganisms during the treatment of kitchen waste, and can also decompose complex organic matter and promote the fermentation process; other microorganisms mainly perform auxiliary decomposition, for example, Bacillus can be added, which can produce a variety of enzymes to decompose macromolecules such as starch and protein in kitchen waste, thereby enhancing the overall fermentation effect.

[0038] This embodiment further discloses a kitchen waste resource utilization device, referring to Figure 2-4 , which uses the above-mentioned kitchen waste resource utilization process for garbage treatment, including a garbage bin, a treatment device, a crusher, a fermentation device, a dryer and an extruder, wherein the crusher, the dryer and the extruder are the same as those in the prior art, and only the corresponding crushing, drying and extrusion parameters need to be set according to the process requirements. In this device, refer to Figure 2 The lid of the trash can 1 is provided with a receiving chamber 2 connected to the inside of the trash can, and the receiving chamber is provided with an odor sensor 3, a deodorant 4 and a circulation fan 5. After the odor sensor detects the odor generated in the trash can, the circulation fan 5 is started to strengthen the gas flow between the gas in the trash can and the deodorant to remove the odor. Specifically, the odor sensor can select a metal oxide semiconductor odor sensor, which uses the property that the resistance value of the metal oxide semiconductor changes when it contacts the reducing or oxidizing gas in the odor to detect the gas concentration. It has high sensitivity and can detect low concentrations of odor. It has a good response to a variety of common odor components such as hydrogen sulfide, ammonia, formaldehyde, etc., and has a relatively low cost and a long service life. The deodorant 4 can select an activated carbon deodorant, which uses the rich microporous structure to adsorb odor molecules on its surface through physical adsorption, thereby achieving the purpose of deodorization. It can effectively absorb hydrogen sulfide, ammonia and various organic odor molecules in the trash can. At the same time, it is low-cost and easy to replace. The circulation fan 5 can be an ordinary small fan to enhance the gas flow and cooperate with the deodorant 4 to absorb the odor. The power supply can be externally connected or powered by a small battery. If it is a small battery, it is also placed in the accommodating cavity. When the environmental protection staff recycles the garbage or replaces the deodorant, the small battery can be replaced by the way. The trash can of the present invention can not only recycle kitchen waste, but also cooperate with the CJEM bacteria in the process to greatly reduce the odor generated by the garbage in the barrel, ensuring the comfort of the surrounding environment of the trash can. The bottom of the trash can 1 is provided with a supporting foot 6, and the bottom of the supporting foot 6 is provided with a pressure sensor 7. The weight of the garbage in the trash can 1 is detected by the pressure sensor. When the weight of the garbage in the trash can 1 is close to full, the pressure sensor can be used to feedback information to remind the staff to come and clean it up.

[0039] Furthermore, in the equipment of this embodiment, the processing device 8 includes two symmetrically arranged conveying chains 9, and there are several cross bars 10 arranged at intervals between the two conveying chains 9. The processing device 8 also includes a vibration plate 11 and an electromagnet 12. The vibration plate 11 is provided in two groups and is respectively located under the two conveying chains 9. The vibration plate 11 can drive the conveying chain 9 to vibrate. The cross bar 10 is provided with small spikes 13; the electromagnet 12 is arranged at the rotating part of the conveying chain 9. Through the above structure, the starting end of the conveying chain 9 is connected to the collection pool (not shown in the figure), and the garbage in the collection pool is sent to the conveying chain 9 and the cross bar 10 through a mechanical garbage bucket or manually. Since the cross bars are arranged at intervals, the liquid garbage will directly flow into the liquid collection frame 801 below. When the garbage reaches the position of the vibration plate 11, the vibration of the vibration motor 1101 on the vibration plate 11 drives the chain to vibrate, thereby driving the cross bar 10 in this area to vibrate synchronously, so that the garbage on the cross bar 10 is affected by the vibration fluctuations, and cooperates with the small spikes 13 on the cross bar to break up some agglomerated garbage. At the same time, some residual liquid can also fall into the liquid collection frame 801 better, and the fine and small solid garbage will be screened by the screen 8011 in the liquid collection frame 801, and the screened solid garbage will be processed together with the subsequent solid garbage; the remaining The garbage which is basically solid continues to be transported forward. When it reaches the rotating position, the electromagnet at the rotating position is energized, and the cross bar 10 is magnetized, so that the cross bar 10 has magnetism, and some iron garbage in the garbage, such as iron spoons and chopsticks, is adsorbed. Solid garbage that does not have magnetic properties is thrown out at the rotating position and falls into the solid collection frame 802. The attracted garbage continues to be transported. After leaving the magnetized area of ​​the electromagnet 12, the garbage falls into the magnetic metal collection frame 803. At the same time, the solid collection frame 802 can be manually screened. There may be some non-magnetic metal garbage, such as aluminum garbage. These metal garbage and the magnetic metal collection frame are directly recycled for metal recovery. The remaining solid garbage and the solid garbage selected by the screen in the liquid collection frame are crushed together and prepared to be made into feed later.

[0040] Furthermore, in the fermentation link of liquid garbage, the fermentation device includes a fermentation tank 14, the fermentation tank 14 is wrapped with a circulating water jacket 15, the fermentation tank is provided with a sealing cover 16, the sealing cover is provided with a temperature sensor 17, and the probe of the temperature sensor 17 extends into the fermentation tank 14. Since the present invention adopts anaerobic fermentation and low-temperature fermentation, the sealing cover 16 must prevent the outside air from entering, so the exhaust gas generated inside must be set with a one-way valve to be discharged, but the outside air cannot enter the inside, and at the same time, the temperature is also very critical, and the temperature sensor 17 is set to detect the internal temperature in real time, and cooperate with the circulating water jacket 15 to achieve temperature control; specifically, the circulating water jacket 15 has a circulating chamber 1501 inside, the water inlet 1502 is located at the bottom, and the water outlet 1503 is located at the top, to ensure that the inside of the circulating water jacket 15 is always full of circulating water, and it is connected to the external constant temperature water system, thereby ensuring that the temperature inside the fermentation tank remains relatively stable.

[0041] Furthermore, it also includes a central system, and the trash can, processing device, crusher, fermentation device, dryer and extruder are all electrically connected to the central system, and transmit the garbage processing data to the central system to understand the processing situation in real time. For example, when the pressure sensor of the trash can feedbacks that the garbage in the trash can is full, the staff is promptly informed to go for recycling, and the temperature of the fermentation device and dryer, and the fermentation and drying time are also promptly fed back to the staff. Through the setting of the central system, all data are concentrated in the central system, which is convenient for data tracing of the entire process of garbage disposal, understanding the processing situation of each link, and helping to find problems and optimize the process. According to the data transmitted by each device, the trash can, processing device, crusher, fermentation device, dryer and extruder and other equipment are coordinated and managed, so that the work connection between them is smoother, and the overall efficiency of garbage disposal is improved. Once an abnormality or failure of the equipment is found, an alarm can be issued in time, which is convenient for the staff to respond and handle quickly, reduce equipment downtime, and ensure the normal progress of garbage disposal.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A process for recycling kitchen waste, characterized in that: The following steps are involved: S1. Including but not limited to setting up special garbage bins for collecting kitchen waste in hotels, canteens, food processing plants, farmers' markets and household kitchen waste recycling areas; S2, transferring the kitchen waste in the collected garbage bins to a transfer bin, and transporting the transfer bin to a centralized location by a transport vehicle for preliminary screening and collection into a collection pool; S3, the garbage in the collection pool is separated into solid and liquid garbage by a processing device, and then the solid garbage is crushed by a crusher; S4, adding biological bacteria to liquid waste for fermentation to produce biological liquid organic fertilizer, and drying and extruding solid waste to produce animal feed; S5. Package and sell the bio-liquid organic fertilizer and feed separately to realize the resource utilization of kitchen waste.

2. The process for recycling kitchen waste according to claim 1, characterized in that: In the step S1, CJEM bacteria are added into the trash can.

3. The process for recycling kitchen waste according to claim 1, characterized in that: In the step S2, CJEM bacteria are sprayed in the collection pool.

4. The process for recycling kitchen waste according to claim 1, characterized in that: In the step S4, 1% of the weight of the liquid waste is added with CJEM bacteria for fermentation, and the fermentation conditions are anaerobic fermentation, the temperature is 20-30° C.; the drying and sterilization temperature is 80-120° C., and the duration is 2-4 hours; the extrusion pressure is 2-5 MPa.

5. A process for recycling kitchen waste according to any one of claims 2 to 4, characterized in that: The CJEM bacteria include 25%-35% of lactic acid bacteria, 20%-30% of yeast, 15%-25% of photosynthetic bacteria, 10%-20% of actinomycetes, and 5%-10% of other microorganisms capable of decomposing starch and protein.

6. The process for recycling kitchen waste according to claim 4, characterized in that: The drying temperature is firstly 100-120° C. for 1-1.5 hours, and then the drying temperature is reduced to 80-90° C. for 1-2.5 hours.

7. A kitchen waste resource utilization device, which uses a kitchen waste resource utilization process as described in any one of claims 1 to 6 to treat waste, comprising a garbage bin, a treatment device, a crusher, a fermentation device, a dryer and an extruder, characterized in that: The lid of the trash can is provided with a accommodating cavity which is connected with the inside of the trash can, and the accommodating cavity is provided with an odor sensor, a deodorant and a circulation fan. After the odor sensor detects the odor generated in the trash can, the circulation fan is started to strengthen the gas flow between the gas in the trash can and the deodorant to remove the odor; the bottom of the trash can is provided with supporting feet, and the bottom of the supporting feet is provided with a pressure sensor.

8. The kitchen waste resource utilization device according to claim 6, characterized in that: The processing device includes two symmetrically arranged conveying chains, and there are several cross bars arranged at intervals between the two conveying chains. The processing device also includes a vibration plate and an electromagnet. The vibration plate is provided in two groups and is respectively located under the two conveying chains. The vibration plate can drive the conveying chain to vibrate. Small spikes are provided on the cross bar; the electromagnet is arranged at the rotating part of the conveying chain.

9. The kitchen waste resource utilization device according to claim 6, characterized in that: The fermentation device comprises a fermentation tank, the outside of which is wrapped with a circulating water jacket, a sealing cover is arranged on the fermentation tank, a temperature sensor is arranged inside the sealing cover, and a probe of the temperature sensor extends into the fermentation tank.

10. The kitchen waste resource utilization device according to claim 6, characterized in that: It also includes a central system, and the garbage bin, processing device, crusher, fermentation device, dryer and extruder are all electrically connected to the central system and transmit garbage processing data to the central system.

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