A kitchen waste biological treatment machine with hard garbage crushing function and control method

Abstract

The present invention discloses a kitchen waste biological treatment machine and a control method with a hard garbage crushing function, belonging to the technical field of garbage treatment, comprising a crushing device, a fermentation device and a discharging device connected in sequence, wherein the crushing device is used to crush the kitchen waste; the fermentation device is used to stir the crushed kitchen waste; the discharging device is used to discharge the kitchen waste after crushing, stirring and fermentation; wherein the crushing box is provided with a cleaning component, the cleaning component is used to generate high-speed gas to blow off the garbage stuck in the crushing bin; the fermentation device is connected with a gas purification module, the gas purification module is used to purify the gas in the fermentation device and then discharge it; the fermentation device is provided with an oxygen sensor, the oxygen sensor and the gas purification module are both electrically connected to a controller. Compared with the prior art, the present invention can improve the processing efficiency of kitchen waste, no odor gas is generated after processing, and it is clean and hygienic.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage disposal, and in particular to a kitchen waste biological treatment machine with hard garbage crushing function and a control method thereof. Background Art

[0002] Kitchen waste refers to perishable food waste generated in households, mainly including vegetable stems and leaves, leftovers, melon peels and fruit cores, discarded food, etc. There are now available composting and fermentation methods to treat and obtain organic fertilizers, which can be used for household flower and grass planting and other purposes, turning waste into treasure and improving the environment. However, existing equipment, such as Chinese Patent No. CN205762916U discloses a kitchen waste treatment device, such as Chinese Patent No. CN208649153U discloses a household kitchen waste composting machine, such as Chinese Patent No. CN205398488U discloses a restaurant kitchen waste composting treatment device. The above-mentioned treatment devices often have problems such as incomplete garbage treatment, low garbage fermentation efficiency, and odor, and the user experience is not friendly enough. Summary of the invention

[0003] 1. Technical problem to be solved by the invention

[0004] In view of the technical problem of low garbage fermentation efficiency in the prior art, the present invention provides a kitchen waste biological treatment machine and a control method with the function of crushing hard garbage. It can improve the treatment efficiency of kitchen waste, and no odorous gas is generated after treatment, and it is clean and hygienic, and harmless and reduced kitchen waste residues are generated. The product can be used as a fertilizer, turning waste into treasure, and can also be automatically controlled.

[0005] 2. Technical solution

[0006] To solve the above problems, the technical solution provided by the present invention is:

[0007] A kitchen waste biological treatment machine with hard waste crushing function, comprising a crushing device, a fermentation device and a discharging device connected in sequence, wherein the crushing device is used to crush the kitchen waste; the fermentation device is used to stir the crushed kitchen waste; the discharging device is used to discharge the crushed, stirred and fermented kitchen waste;

[0008] Among them, the crushing box is provided with a cleaning component, and the cleaning component is used to generate high-speed gas to blow off the garbage stuck in the crushing bin; the fermentation device is connected to a gas purification module, and the gas purification module is used to purify the gas in the fermentation device and then discharge it; the fermentation device is provided with an oxygen sensor, and the oxygen sensor and the gas purification module are both electrically connected to the controller.

[0009] The design of oxygen sensor, gas purification module, cleaning component and controller makes the oxygen concentration in the fermentation device fluctuate within a certain range, effectively preventing the oxygen concentration in the fermentation device from being too high or too low and affecting the activity of microorganisms, so that the microorganisms are always in a more suitable oxygen environment, thereby improving the fermentation efficiency of kitchen waste.

[0010] Optionally, the crushing device includes a crushing box, at least two crushing rollers arranged in the crushing box, a crushing drive for driving the crushing rollers to rotate, and a detection sensor for detecting the working state of the crushing rollers, the crushing drive and the detection sensor are both electrically connected to the controller; the detection sensor is at least one of a resistance sensor, a temperature sensor, a vibration sensor, and a current sensor. The crushing efficiency of the crushing device is greatly improved, the crushing is more thorough, and it is helpful to improve the efficiency of subsequent fermentation and decomposition.

[0011] Optionally, the cleaning assembly includes an air injection hole provided on the crushing box, a cleaning drive for injecting air into the crushing box, and a guide plate for directing the air to the crushing roller, thereby achieving the purpose of air injection and effectively preventing the air from drifting.

[0012] Optionally, the fermentation device includes a fermentation bin and a stirring structure for stirring the crushed kitchen waste, the stirring structure includes a stirring shaft arranged in the fermentation bin, at least one stirring member arranged on the stirring shaft, and a stirring driving member for driving the stirring shaft to rotate in the fermentation bin, the fermentation bin is provided with a feeding port, and the fermentation bin is provided with a feeding structure for opening and closing the feeding port. The fermentation device not only achieves the purpose of stirring and promoting fermentation, but also helps to accelerate the fermentation speed of the kitchen waste.

[0013] Optionally, the fermentation device is provided with a temperature control module, the temperature control module includes a temperature sensor arranged in the fermentation bin and a heating drive for heating the fermentation bin, and the temperature sensor and the heating drive are both electrically connected to the controller. The temperature control module controls the temperature in the fermentation device within a certain range of values, ensuring that the fermentation bin can reach a suitable fermentation temperature, which helps to improve the fermentation efficiency of kitchen waste and ensure the survival rate of microorganisms.

[0014] Optionally, the fermentation device is provided with a humidity control module, the humidity control module includes a humidity sensor arranged in the fermentation bin and a water tank connected to the fermentation bin through a water outlet pipe, the water outlet pipe is provided with a solenoid valve, the water tank is provided with a water injection structure, and the water tank is provided with a water level sensor. The humidity control module can control the humidity in the fermentation device. Generally, household kitchen waste composters are not provided with a humidification function, which can easily cause excessive drying of the material, affect the biodegradation process, and cause problems such as insufficient reduction ratio of kitchen waste and insufficient maturity.

[0015] Optionally, the gas purification module includes a purification box connected to the fermentation bin through a first air pipe, and an air extraction drive connected to the purification box through a second air pipe, wherein the purification box is provided with an ultraviolet sterilization lamp, a photocatalyst porous net, and an activated carbon-HEPA integrated filter. The coordination between the ultraviolet sterilization lamp, the photocatalyst porous net, and the activated carbon-HEPA integrated filter greatly improves the purification effect of the gas purification module on odor.

[0016] Optionally, it further includes a shell, the discharging device includes a discharging box and an opening provided on the shell, the discharging box is installed on the shell in a drawer-like manner through the discharging port, and the discharging box is made of transparent material.

[0017] A control method for a food waste biological treatment machine with a hard garbage crushing function comprises the following steps:

[0018] S1: The crushing device crushes the kitchen waste into particles;

[0019] S2: putting the microbial strains and granular kitchen waste into a fermentation device and stirring them;

[0020] S3: The oxygen sensor detects the oxygen concentration value in the fermentation device in real time;

[0021] S4: Compare the oxygen concentration value measured by the oxygen sensor with the oxygen concentration range value preset in the controller;

[0022] If the oxygen concentration value measured by the oxygen sensor exceeds the preset oxygen concentration value, execute S5;

[0023] If the oxygen concentration value measured by the oxygen sensor is lower than the preset oxygen concentration value, execute S6;

[0024] If the oxygen concentration value measured by the oxygen sensor is within the preset oxygen concentration range, execute S7;

[0025] S5: turn off the cleaning component, start the gas purification module, and execute S4;

[0026] S6: Start the cleaning component, turn off the gas purification module, and execute S4;

[0027] S7: Start the cleaning component, start the gas purification module, and execute S4.

[0028] 3. Beneficial effects

[0029] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0030] (1) When the cleaning component injects gas into the fermentation device through the crushing device, the flow rate of the gas drives the kitchen waste fragments in the crushing device into the fermentation device. The cleaning component realizes the cleaning function of the crushing device by gas injection, which can effectively reduce the residual garbage residue on the crushing roller, avoid odor and sticky problems caused by long-term use, and make the equipment use environment more hygienic.

[0031] (2) When the oxygen sensor detects that the oxygen concentration in the fermentation device is lower than a preset value, the gas purification module stops working to prevent the oxygen concentration in the fermentation device from further decreasing. At this time, in the process of the cleaning component continuously injecting gas into the crushing device, the gas enters the fermentation device from the crushing device to gradually increase the oxygen concentration in the fermentation device. When the oxygen sensor detects that the oxygen concentration in the fermentation device reaches the preset value, the controller controls the gas purification module to restart to purify the gas. The above-mentioned structural design allows the oxygen concentration in the fermentation device to fluctuate within a certain range, effectively preventing the oxygen concentration in the fermentation device from being too high or too low and affecting the activity of the microorganisms, so that the microorganisms are always in a more suitable oxygen environment, thereby improving the fermentation efficiency of kitchen waste.

[0032] (3) During the microbial fermentation process, biological fermentation gas in the fermentation chamber will produce odors such as volatile organic acids and hydrogen sulfide. The gas purification module is used to purify the generated fermentation gas to avoid the generation of odor.

[0033] (4) The crushing roller crushes the kitchen waste into small particles less than 5mm. There is no need to sort or chop the kitchen waste. Kitchen waste of any shape, such as large bones, meat, fish, shellfish, vegetables, fruit peels, etc., whether cooked or raw, can be crushed into small particles together, which helps to speed up the fermentation and decomposition of the kitchen waste in the later stage and improve the overall waste treatment efficiency.

[0034] (5) The present invention places the kitchen waste mixed with fermentation enzymes in a temperature, humidity, and oxygen-containing air environment suitable for fermentation and ferments them in a warehouse, thereby ensuring the efficiency and effect of the fermentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The cross-sectional view of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 2 The cross-sectional view of the present invention is shown in FIG. Figure 2 ;

[0037] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0038] Figure 4 The cross-sectional view of the present invention is shown in FIG. Figure 3 ;

[0039] 1. Shell; 2. Crushing device; 21. Crushing box; 2111. Air injection hole; 2112. Cleaning drive; 2113. Guide plate; 22. Crushing roller; 23. Crushing drive; 3. Fermentation device; 311. Temperature control module; 3111. Heating drive; 312. Humidity control module; 3121. Water outlet pipe; 3122. Water tank; 3123. Solenoid valve; 3124. Water injection structure; 32. Gas purification module; 321. First air pipe; 322. Purification box; 323. Second air pipe; 324. Air extraction drive; 33. Fermentation bin; 331. Feeding port; 3321. Feeding plate; 34. Stirring shaft; 35. Stirring member; 36. Stirring drive; 4. Discharging device; 41. Discharging box; 42. Opening; 5. Delivery port; 6. Cover plate; 7. Tooth-picking knife. DETAILED DESCRIPTION

[0040] To further understand the content of the present invention, Figure 1-4 The present invention is described in detail with reference to the accompanying drawings and embodiments.

[0041] The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It will be understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings. The first, second, etc. terms described in the present invention are provided for the convenience of describing the technical solution of the present invention, and have no specific limiting effect. They are all general terms and do not constitute a limiting effect on the technical solution of the present invention. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the examples.

[0042] Example 1

[0043] Combined with Figure 1 and 4 The present embodiment is a kitchen waste biological treatment machine with hard waste crushing function, comprising a crushing device 2, a fermentation device 3 and a discharging device 4 connected in sequence, wherein the crushing device 2 is used to crush the kitchen waste; the fermentation device 3 is used to stir the crushed kitchen waste; the discharging device 4 is used to discharge the crushed, stirred and fermented kitchen waste;

[0044] Among them, the crushing box 21 is provided with a cleaning component 211, and the cleaning component 211 is used to inject gas into the fermentation device 3 through the crushing device 2; the fermentation device 3 is connected to a gas purification module 32, and the gas purification module 32 is used to purify the gas in the fermentation device 3 and then discharge it; the fermentation device 3 is provided with an oxygen sensor, and the oxygen sensor and the gas purification module 32 are both electrically connected to the controller.

[0045] When the cleaning component 211 injects the gas into the fermentation device 3 through the crushing device 2, the flow rate of the gas drives the kitchen waste fragments in the crushing device 2 to enter the fermentation device 3 together. The cleaning component 211 realizes the cleaning function of the crushing device 2 by gas injection, which can effectively reduce the residual garbage residues in the crushing roller 22, avoid the odor and sticky problems caused by long-term use, and make the equipment use environment more hygienic; when the oxygen sensor detects that the oxygen concentration in the fermentation device 3 is lower than the preset value, the gas purification module 32 stops working to prevent the oxygen concentration in the fermentation device 3 from further decreasing. At this time, in the process of the cleaning component 211 continuously injecting gas into the crushing device 2, the gas enters the fermentation device 3 from the crushing device 2 so that The oxygen concentration in the fermentation device 3 gradually increases. When the oxygen sensor detects that the oxygen concentration in the fermentation device 3 reaches a preset value, the controller controls the gas purification module 32 to restart to purify the gas. The above-mentioned structural design allows the oxygen concentration in the fermentation device 3 to fluctuate within a certain range, effectively avoiding the excessively high or low oxygen concentration in the fermentation device 3 affecting the activity of the microorganisms, so that the microorganisms are always in a more suitable oxygen environment, thereby improving the fermentation efficiency of kitchen waste. During the microbial fermentation process, biological fermentation gas containing volatile organic acids, hydrogen sulfide and other odors will be generated in the fermentation bin. The gas purification module 32 is used to purify the generated fermentation gas to avoid the generation of odor.

[0046] In this embodiment, the food waste biological treatment machine with hard waste crushing function further includes a shell 1 .

[0047] Example 2

[0048] Combined with Figure 1 and 4 In this embodiment, a kitchen waste bioprocessor with hard garbage crushing function is provided. Compared with Embodiment 1, the crushing device 2 includes a crushing box 21, at least two crushing rollers 22 arranged in the crushing box 21, and a crushing driving member 23 for driving the crushing roller 22 to rotate and a detection sensor for detecting the working state of the crushing roller. The crushing driving member 23 and the detection sensor are both electrically connected to the controller; the detection sensor is at least one of a resistance sensor, a temperature sensor, a vibration sensor, and a current sensor.

[0049] Existing kitchen waste composting machines often use blade-type crushing devices, which cannot crush hard kitchen waste. The present invention can crush hard kitchen waste such as animal bones, fish bones and shellfish, coarse straw, etc. into particles with a diameter of less than 5 mm through the crushing rollers 22 on both sides, which greatly improves the crushing efficiency and is more thorough, which helps to improve the efficiency of subsequent fermentation and decomposition; the crushing device 2 will inevitably get stuck when crushing hard kitchen waste. In the present invention, the working state of the crushing roller is detected in real time by a detection sensor. When the detection sensor detects that the value exceeds the preset value, the crushing drive 23 is controlled to rotate in the opposite direction for 5-10S. When the crushing roller rotates in the opposite direction, the stuck hard objects can be brought out, thereby avoiding equipment failure and helping to extend the service life of the equipment. One of the optional implementation methods is that the detection sensor is a resistance sensor, which is used to detect the resistance value encountered by the crushing roller 22 when it rotates. When the measured resistance value exceeds the preset value, the resistance sensor controls the crushing drive 23 to rotate in the opposite direction to bring out the kitchen waste stuck between the two crushing rollers 22 in the opposite direction; the second optional implementation method is that the detection sensor is a resistance sensor. The resistance sensor is used to detect the resistance value encountered by the crushing roller 22 when it rotates. When the measured resistance value exceeds the preset value, the resistance sensor controls the crushing drive 23 to rotate in the opposite direction to reversely bring out the kitchen waste stuck between the two crushing rollers 22; The detection sensor is a temperature sensor, which is used to detect the temperature value of the crushing drive 23 when the crushing roller 22 rotates. When the measured temperature value exceeds the preset value, the temperature sensor controls the crushing drive 23 to rotate in the opposite direction through the controller to reversely bring out the kitchen waste stuck between the two crushing rollers 22; the third optional implementation is that the detection sensor is a vibration sensor, which is used to detect the vibration amplitude when the crushing roller 22 rotates. When the measured vibration amplitude value exceeds the preset value, the vibration sensor controls the crushing drive 23 to rotate in the opposite direction to reversely bring out the kitchen waste stuck between the two crushing rollers 22; the above three implementations can be mutually structured to achieve multiple detections, thereby helping to improve the detection accuracy; the fermentation device fully stirs the kitchen waste with microorganisms, accelerates the biological fermentation degradation speed, and improves the fermentation efficiency of the kitchen waste. The kitchen waste stays in the fermentation bin for 20 days and is decomposed and fermented by microorganisms to convert the kitchen waste into organic fertilizer. Compared with traditional natural fermentation, the time for converting kitchen waste into organic fertilizer is greatly shortened, and the kitchen waste is fully utilized;

[0050] In this embodiment, two crushing rollers 22 are horizontally symmetrically arranged in the crushing box 21. A gap is formed between the two crushing rollers 22 for crushing kitchen waste. The crushing drive 23 is a stepper motor that can be purchased directly from the market. The stepper motor is installed on the side wall of the crushing box 21 by screws to control the rotation of the crushing roller 22 in the crushing box 21. The rotation of the crushing roller 22 is independently controlled by the crushing drive 23.

[0051] In this embodiment, a cover plate 6 for opening and closing the delivery port 5 is provided above the shell 1. One side of the cover plate 6 is hinged to the top of the shell 1. When the user delivers garbage to the delivery port 5, the delivery port 5 can be opened by prying the other side of the cover plate 6 upwards. In order to improve the crushing efficiency of kitchen waste, a plurality of toothed knives 7 are provided on the inner wall of the crushing box 21 close to the crushing roller 22.

[0052] Example 3

[0053] Combined with Figure 1 and 4 In this embodiment, a food waste biological treatment machine with hard waste crushing function is provided. Compared with Embodiment 1 or 2, the cleaning component 211 includes an air injection hole 2111 provided on the crushing box 21, a cleaning drive member 2112 for injecting gas into the crushing box 21, and a guide plate 2113 for guiding the gas to the crushing roller 22.

[0054] The cleaning component 211 in this embodiment cleans the crushing box 21 in the following steps: the cleaning drive 2112 injects gas into the crushing box 21 from the gas injection hole 2111, and the gas injected into the crushing box 21 is blown toward the crushing roller 22 through the guiding effect of the guide plate 2113. When the gas passes through, the kitchen waste on the inner wall of the crushing box 21 and the surface of the crushing roller 22 can be flushed out from the bottom of the crushing box 21 to achieve the cleaning purpose. Since this embodiment uses gas to achieve cleaning, the injected gas can prevent the odorous gas from drifting upward during the downward impact, so that the gas in the crushing box 21 flows from the crushing box 21 to the fermentation device 3, and finally the gas purification purpose is achieved through the gas purification module 32 on the fermentation device 3.

[0055] In this embodiment, the cleaning drive member 2112 is a cross-flow fan that can be purchased directly from the market. The air injection hole 2111 is opened at the upper end of the crushing box 21. The crushing box 21 as a whole is in the shape of an inverted boss. The volume above the crushing box 21 is larger than the volume below. In the process of the gas flowing downward, it will be compressed due to the shape of the crushing box 21, thereby achieving the purpose of pressurizing and increasing the speed of the gas, ensuring that the gas clears the kitchen waste as much as possible.

[0056] Example 4

[0057] Combined with Figure 1 and 4, a kitchen waste biological treatment machine with hard waste crushing function in this embodiment, compared with any one of embodiments 1-3, the fermentation device 3 includes a fermentation bin 33 and a stirring structure for stirring the crushed kitchen waste, the stirring structure includes a stirring shaft 34 arranged in the fermentation bin 33, at least one stirring member 35 arranged on the stirring shaft 34, and a stirring driving member 36 for driving the stirring shaft 34 to rotate in the fermentation bin 33, the fermentation bin 33 is provided with a discharge port 331, and the fermentation bin 33 is provided with a discharge structure 332 for opening and closing the discharge port 331.

[0058] After the kitchen waste is crushed, it falls into the crushing box 21. The stirring drive member 36 drives the stirring shaft 34 to start driving the stirring member 35 to rotate. The stirring member 35 fully stirs the kitchen waste and the microorganisms to accelerate the biological fermentation and degradation rate. When the kitchen waste is fully fermented to form fertilizer, the unloading structure 332 on the fermentation bin 33 opens the unloading port 331 to allow the fertilizer to fall onto the discharging device 4 for the user to take.

[0059] In this embodiment, the feed port 331 is arranged below the fermentation bin 33, so that the kitchen waste in the fermentation bin 33 can automatically fall down by gravity. The stirring shaft 34 is arranged horizontally in the fermentation bin 33, and the stirring member 35 is relatively vertically installed on the stirring shaft 34. The stirring drive member 36 is a stepper motor that can be directly purchased from the market. The stepper motor is installed on the side wall of the crushing box 21 to drive the rotation of the stirring shaft 34.

[0060] In this embodiment, the material removal structure 332 includes a material removal plate 3321 sealed and connected to the material removal opening 331 and a motor for driving one side of the material removal plate 3321 to rotate.

[0061] Example 5

[0062] Combined with Figure 1 and 4 In the present embodiment, a bio-disposal machine for kitchen waste with hard garbage crushing function is provided. Compared with any one of Embodiments 1-4, the fermentation device 3 is provided with a temperature control module 311, and the temperature control module 311 includes a temperature sensor provided in the fermentation bin 33 and a heating drive 3111 for heating the fermentation bin 33, and the temperature sensor and the heating drive 3111 are both electrically connected to the controller.

[0063] When the temperature sensor detects that the temperature in the fermentation bin 33 is lower than a preset value, the temperature sensor controls the heating drive 3111 through the controller to start heating the fermentation bin 33 so that the temperature in the fermentation bin 33 reaches the optimal fermentation temperature. When the temperature sensor detects that the temperature in the fermentation bin 33 reaches the preset value, the heating is stopped.

[0064] The temperature control module 311 controls the temperature in the fermentation device 3 within a certain range to ensure that the fermentation chamber can reach a suitable fermentation temperature, which helps to improve the fermentation efficiency of kitchen waste and ensure the survival rate of microorganisms.

[0065] In this embodiment, in order to increase the heating rate of the fermentation bin 33, the material of the fermentation bin 33 is one of aluminum alloy, stainless steel, and copper. The heating drive component 3111 is an electric heating plate that can be directly purchased from the market. The heating drive component 3111 is fitted on the outer wall of the fermentation bin 33 to improve the heat conduction efficiency.

[0066] Example 6

[0067] Combined with Figure 1-4 In the present embodiment, a kitchen waste biological treatment machine with hard garbage crushing function is provided. Compared with any one of Embodiments 1-5, the fermentation device 3 is provided with a humidity control module 312, and the humidity control module 312 includes a humidity sensor arranged in the fermentation bin 33 and a water tank 3122 connected with the fermentation bin 33 through a water outlet pipe 3121, and the water outlet pipe 3121 is provided with a solenoid valve 3123, and the water tank 3122 is provided with a water injection structure 3124, and a water level sensor is provided in the water tank 3122.

[0068] When the humidity sensor detects that the humidity of the material in the fermentation bin 33 is lower than the set value, the solenoid valve 3123 opens, water flows out from the outlet pipe 3121 below, and water drips into the outlet pipe 3121 to moisten the fermented material; when the humidity sensor detects that the humidity of the material in the fermentation bin 33 is higher than the set value, the solenoid valve 3123 closes; the water level sensor 3125 monitors the water volume in the water tank. When the water level is lower than the set value, it prompts that water replenishment is needed, and water is added manually from the water injection structure 3124 above.

[0069] The humidity control module 312 can control the humidity in the fermentation device 3. Generally, household kitchen waste composters are not equipped with a humidification function, which can easily cause the material to be over-dry, affect the biodegradation process, and cause problems such as insufficient reduction ratio of kitchen waste and insufficient maturity.

[0070] In this embodiment, the water injection structure 3124 is a water injection pipe connected to the top of the water tank 3122, and the upper end of the water injection pipe extends from the shell 1 to facilitate the user to directly inject water into the water tank 3122; the water level sensor 3125 is a float monitor, which is placed in the water tank 3122 to detect the water level in the water tank 3122 in real time.

[0071] Example 7

[0072] Combined with Figure 1-4In this embodiment, a kitchen waste biological treatment machine with hard garbage crushing function is provided. Compared with any one of Embodiments 1-5, the gas purification module 32 includes a purification box 322 connected to the fermentation bin 33 through a first air pipe 321, and an exhaust drive member 324 connected to the purification box 322 through a second air pipe 323. The purification box 322 is provided with an ultraviolet sterilization lamp, a photocatalyst porous mesh, and an activated carbon-HEPA integrated filter.

[0073] The exhaust drive 324 draws the odor in the fermentation bin 33 into the purification box 322 by means of air induction. The odor is purified by the purification box 322 and then discharged to the outside of the device. In this embodiment, the ultraviolet sterilization lamp can kill bacteria, the photocatalyst degrades the odor components under the stimulation of the ultraviolet lamp, and the activated carbon-HEPA integrated filter realizes the adsorption and removal of residual odor. The advantage of this is that the general kitchen waste composter is only equipped with activated carbon adsorption purification, which has a short service life and no sterilization function, and there are health and safety risks. The device integrates three-stage purification of ultraviolet sterilization-photocatalytic degradation-activated carbon adsorption, and the purification effect is more efficient and lasting, and the filter has a longer service life; the HEPA filter is designed as a drawer type for easy replacement.

[0074] Example 8

[0075] Combined with Figure 1-4 , a kitchen waste biological treatment machine with hard garbage crushing function in this embodiment, compared with any one of embodiments 1-5, also includes a shell 1, the discharging device 4 includes a discharging box 41 and an opening 42 provided on the shell 1, the discharging box 41 is installed on the shell 1 in a drawer-like manner through the discharging port 42, and the discharging box 41 is made of transparent material.

[0076] The drawer-type installation method makes it easy for the user to pull out the discharge box 41 and use the fertilizer in the discharge box 41. The storage drawer is located at the lower part of the fermentation bin 33. The discharge box 41 is made of transparent material, which is mainly used to observe the fullness of the storage material in the drawer to prevent excessive material from overflowing or affecting subsequent discharge.

[0077] In this embodiment, the discharge box 41 can be made of one of PMMA, PS, and PC.

[0078] Example 9

[0079] Combined with Figure 1-4 The control method of a food waste biological treatment machine with hard garbage crushing function in this embodiment comprises the following steps:

[0080] S1: Crushing device 2 crushes the kitchen waste into particles;

[0081] S2: putting the microbial strains and the granular kitchen waste into the fermentation device 3 for stirring;

[0082] S3: The oxygen sensor detects the oxygen concentration value in the fermentation device 3 in real time;

[0083] S4: Compare the oxygen concentration value measured by the oxygen sensor with the oxygen concentration range value preset in the controller;

[0084] If the oxygen concentration value measured by the oxygen sensor exceeds the preset oxygen concentration value, execute S5;

[0085] If the oxygen concentration value measured by the oxygen sensor is lower than the preset oxygen concentration value, execute S6;

[0086] If the oxygen concentration value measured by the oxygen sensor is within the preset oxygen concentration range, execute S7;

[0087] S5: close the cleaning component 211, start the gas purification module 32, and execute S4;

[0088] S6: Start the cleaning component 211, close the gas purification module 32, and execute S4;

[0089] S7: Start the cleaning component 211, start the gas purification module 32, and execute S4.

[0090] The oxygen concentration in the fermentation device 3 fluctuates within a certain range, which effectively prevents the oxygen concentration in the fermentation device 3 from being too high or too low and affecting the activity of the microorganisms, so that the microorganisms are always in a more suitable oxygen environment, thereby improving the fermentation efficiency of kitchen waste. The preset oxygen concentration range value in the controller is set according to the characteristics of different bacterial strains.

[0091] In other embodiments, when the oxygen concentration value measured by the oxygen sensor exceeds the preset oxygen concentration value, the cleaning component 211 and the gas purification module 32 are turned off at the same time. At this time, the oxygen in the fermentation bin 33 gradually decreases due to the respiration of microorganisms; when the oxygen concentration value measured by the oxygen sensor is lower than the preset oxygen concentration value, the cleaning component 211 and the gas purification module 32 are started at the same time to inject gas into the fermentation bin 33 to rapidly increase its oxygen concentration value. At the same time, gas is injected into the fermentation bin 33. Compared with air intake on one side, the gas injected into the fermentation bin 33 can be effectively prevented from being discharged from the other side.

[0092] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A food waste biological treatment machine with hard waste crushing function, characterized by: It comprises a crushing device, a fermentation device and a discharging device which are connected in sequence, wherein the crushing device is used to crush the kitchen waste; the fermentation device is used to stir the crushed kitchen waste; the discharging device is used to discharge the crushed, stirred and fermented kitchen waste; Among them, the crushing device is provided with a cleaning component, and the cleaning component is used to generate high-speed gas to blow off the garbage stuck in the crushing bin, and the cleaning component injects the gas into the fermentation device through the crushing device; the fermentation device is connected to a gas purification module, and the gas purification module is used to purify the gas in the fermentation device and then discharge it; the fermentation device is provided with an oxygen sensor, and the oxygen sensor and the gas purification module are both electrically connected to the controller. When the oxygen sensor detects that the oxygen concentration in the fermentation device is lower than a preset value, the gas purification module stops working to prevent the oxygen concentration in the fermentation device from further decreasing. At this time, in the process of the cleaning component continuously injecting gas into the crushing device, the gas enters the fermentation device from the crushing device to gradually increase the oxygen concentration in the fermentation device. When the oxygen sensor detects that the oxygen concentration in the fermentation device reaches the preset value, the gas purification module is controlled by the controller to restart to purify the gas.

2. The kitchen waste biological treatment machine with hard waste crushing function according to claim 1, characterized in that: The crushing device includes a crushing box, at least two crushing rollers arranged in the crushing box, a crushing drive for driving the crushing roller to rotate, and a detection sensor for detecting the working state of the crushing roller. The crushing drive and the detection sensor are both electrically connected to the controller; the detection sensor is at least one of a resistance sensor, a temperature sensor, a vibration sensor, and a current sensor.

3. The kitchen waste biological treatment machine with hard waste crushing function according to claim 1, characterized in that: The cleaning assembly comprises an air injection hole arranged on the crushing box, a cleaning drive member for injecting air into the crushing box, and a guide plate for guiding the air to the crushing roller.

4. The kitchen waste biological treatment machine with hard waste crushing function according to claim 1, characterized in that: The fermentation device includes a fermentation bin and a stirring structure for stirring the crushed kitchen waste, the stirring structure includes a stirring shaft arranged in the fermentation bin, at least one stirring member arranged on the stirring shaft, and a stirring driving member for driving the stirring shaft to rotate in the fermentation bin, the fermentation bin is provided with a feeding port, and the fermentation bin is provided with a feeding structure for opening and closing the feeding port.

5. The kitchen waste biological treatment machine with hard waste crushing function according to claim 1, characterized in that: The fermentation device is provided with a temperature control module, which includes a temperature sensor arranged in the fermentation bin and a heating drive component for heating the fermentation bin, and the temperature sensor and the heating drive component are both electrically connected to the controller.

6. The kitchen waste biological treatment machine with hard waste crushing function according to claim 1, characterized in that: The fermentation device is provided with a humidity control module, which includes a humidity sensor arranged in the fermentation bin and a water tank 2 connected to the fermentation bin through a water outlet pipe, a solenoid valve is arranged on the water outlet pipe, a water injection structure is arranged on the water tank, and a water level sensor is arranged in the water tank.

7. The kitchen waste biological treatment machine with hard waste crushing function according to claim 1, characterized in that: The gas purification module comprises a purification box connected to the fermentation bin through a first air pipe and an air extraction drive connected to the purification box through a second air pipe. An ultraviolet sterilization lamp, a photocatalyst porous net, and an activated carbon-HEPA integrated filter are arranged in the purification box.

8. The kitchen waste biological treatment machine with hard waste crushing function according to claim 1, characterized in that: It also includes a shell, the discharging device includes a discharging box and an opening arranged on the shell, the discharging box is installed on the shell in a drawer-like manner through the discharging opening, and the discharging box is made of transparent material.

9. A control method for a food waste biological treatment machine with a hard waste crushing function, comprising the food waste biological treatment machine with a hard waste crushing function as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1: The crushing device crushes the kitchen waste into particles; S2: putting the microbial strains and granular kitchen waste into a fermentation device and stirring them; S3: The oxygen sensor detects the oxygen concentration value in the fermentation device in real time; S4: Compare the oxygen concentration value measured by the oxygen sensor with the oxygen concentration range value preset in the controller; If the oxygen concentration value measured by the oxygen sensor exceeds the preset oxygen concentration value, execute S5; If the oxygen concentration value measured by the oxygen sensor is lower than the preset oxygen concentration value, execute S6; If the oxygen concentration value measured by the oxygen sensor is within the preset oxygen concentration range, execute S7; S5: turn off the cleaning component, start the gas purification module, and execute S4; S6: Start the cleaning component, turn off the gas purification module, and execute S4; S7: Start the cleaning component, start the gas purification module, and execute S4.

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