Efficient fermentation device for kitchen waste

Abstract

The utility model relates to the field of fermentation devices, in particular to an efficient fermentation device for kitchen waste. The technical problems that the fermentation efficiency is reduced due to the fact that the existing kitchen waste fermentation device generally and directly conducts fermentation treatment on kitchen waste, the kitchen waste particles are not uniform and contain grease and salt, and the ventilation effect is poor or the temperature is unstable in the fermentation process are solved, and compared with a traditional kitchen waste fermentation device, the kitchen waste fermentation device has the advantage that the fermentation efficiency is reduced. Comprising a smashing box, a smashing assembly, a flushing assembly, an air exchange assembly, a cleaning box, a collecting box, a fermentation box, a feeding hopper, a drainage pipe, a discharging pipe, a first filter plate, a vibration motor, an air outlet pipe, a control module and foot columns. Grease and salt in the kitchen waste can be washed away through water pressure by arranging the washing assembly, air circulation can be achieved by arranging the air exchange assembly, and the temperature can be controlled within a reasonable range by arranging the control module.

Description

Technical Field

[0001] The utility model relates to the field of fermentation devices, in particular to a high-efficiency fermentation device for kitchen waste. Background Art

[0002] Kitchen waste, commonly known as swill, refers to organic waste generated in the production, sales, processing, and consumption of food. It mainly comes from people's daily dining, catering, unit catering and other activities. It includes solid food residues, catering wastewater, and waste cooking oil. Due to the complex composition of kitchen waste, it contains a certain proportion of domestic garbage, such as plastic bags, tableware, glassware, metal, etc., and has a high water content, high oil and salt content, and is easy to rot, ferment, and stink. Therefore, if it is not properly handled, it is easy to induce many serious hazards. In order to utilize resources, protect the environment, reduce the amount of garbage, and facilitate monitoring and management, kitchen waste is usually fermented. A kitchen waste fermentation device is a device specially used to treat kitchen waste. Its core function is to convert kitchen waste into organic fertilizer or energy through a fermentation process. Existing kitchen waste fermentation devices usually directly ferment kitchen waste. Because the kitchen waste particles are uneven and contain oil and salt, and the ventilation effect is poor or the temperature is unstable during the fermentation process, the fermentation efficiency is reduced. Utility Model Content

[0003] In order to overcome the existing food waste fermentation devices, the food waste is usually directly fermented. Because the food waste particles are uneven and contain oil and salt, and the ventilation effect is poor or the temperature is unstable during the fermentation process, the fermentation efficiency is reduced.

[0004] The technical scheme of the utility model is: a high-efficiency fermentation device for food waste, comprising a crushing box, a crushing component, a flushing component, a ventilation component, a cleaning box, a collecting box, a fermentation box, a feeding hopper, a drainage pipe, a discharging pipe, a first filter plate, a vibration motor, an air outlet pipe, a control module and a foot column, a crushing component for crushing food waste is provided in the middle of the upper end of the crushing box, a cleaning box for cleaning the crushed food waste is provided at the lower end of the crushing box, a control valve for controlling inlet and outlet is provided on the outer side of the connection between the crushing box and the cleaning box, a feeding hopper for introducing food waste is provided at the left upper end of the crushing box, a collecting box for collecting cleaning wastewater is provided at the lower end of the cleaning box, and a cleaning valve for controlling inlet and outlet is provided on the outer side of the connection between the crushing box and the cleaning box. A first filter plate for washing waste water is provided at the connection between the box and the collection box, and the first filter plate is arranged at an inclination. A fermentation box for fermenting washed food waste is provided at the right end of the washing box, and a control valve for controlling inlet and outlet is provided between the washing box and the fermentation box. A flushing assembly for flushing crushed food waste is provided at the upper left part of the fermentation box, and a ventilation assembly for introducing fresh air into the fermentation box is provided at the upper right part of the fermentation box. Two groups of vibration motors for vibration dehydration are relatively arranged at the front and rear ends of the washing box, a heating coil for heating is provided around the inner wall of the fermentation box, and a control module for controlling the temperature of the heating coil is provided at the middle part of the front end of the fermentation box.

[0005] Preferably, by setting up a crushing component to crush the kitchen waste, the particles of the kitchen waste can be made more uniform, thereby making the filtration more thorough; by setting up a flushing component, the grease and salt in the kitchen waste can be washed away by water pressure; by setting up a ventilation component, purified fresh air can be continuously introduced into the fermentation box, and the exhaust gas can be discharged through the outlet pipe, thereby realizing internal air circulation; by setting up a control module, it can be used to control the temperature of the heating coil on the inner wall of the fermentation box, so that the fermentation box can always be in a suitable temperature environment, thereby making the fermentation effect better; with the mutual cooperation of various components, the fermentation efficiency can be greatly improved.

[0006] Preferably, the crushing assembly includes a driving motor, a rotating shaft and blades. The lower end of the driving motor is provided with a rotating shaft for rotation. The outer side of the rotating shaft is linearly distributed and surrounded by multiple groups of blades for crushing the food waste. The driving motor drives the rotating shaft to rotate to drive the blades to rotate synchronously. By arranging the driving motor to drive the blades to rotate, the food waste can be broken up into pieces to make it more even.

[0007] Preferably, the flushing assembly includes a water tank, a spray plate, a connecting pipe, a nozzle, a water inlet pipe and a water pressure controller. The water tank is connected to the spray plate through a connecting pipe. The spray plate is fitted on the upper inner wall of the cleaning box. The connecting pipe passes through the inner side of the cleaning box and extends to the outside to be connected to the water tank. A plurality of groups of nozzles for spraying water are evenly distributed on the inner side of the spray plate. By evenly distributing the plurality of groups of nozzles, the crushed kitchen waste can be flushed by evenly spraying water to avoid residual grease or salt affecting the fermentation effect.

[0008] Preferably, a water pressure controller for controlling the water pressure is provided in the middle of the upper end of the water tank, a water inlet pipe for introducing water is provided at the left upper end of the water tank, and control valves for controlling the inlet and outlet are provided on the outside of the water inlet pipe and the connecting pipe. By setting the water pressure controller, the water pressure can be controlled according to the actual cleaning situation.

[0009] Preferably, the ventilation assembly includes a purification box, a fan, a second filter plate, a third filter plate, an air duct and a box door. A fan for inhaling external air is provided in the middle of the rear end of the purification box. A second filter plate for filtering dust is provided at the end of the fan away from the purification box. A third filter plate for filtering is provided at the upper part of the purification box. The area of ​​the purification box below the third filter plate is used to place activated carbon. By setting the second filter plate, external dust can be filtered and blocked to prevent it from entering the purification box. By setting the third filter plate, further filtering can be performed to prevent substances such as activated carbon from entering the air duct.

[0010] Preferably, an air duct for introducing purified air into the fermentation box is provided at the right end of the purification box, a box door for opening and closing is provided at the front end of the purification box, and a control valve for controlling entry and exit is provided on the outer side of the connection between the air duct and the purification box. The provision of the box door facilitates regular replacement of activated carbon and other substances used to purify the air.

[0011] Preferably, a drain pipe for discharging cleaning waste water is provided in the middle of the lower end of the collecting box, a discharge pipe for discharging fermented materials is provided in the middle of the lower end of the fermentation box, control valves for controlling inlet and outlet are provided on the outer sides of the drain pipe and the discharge pipe, supporting legs are provided around the four corners of the lower ends of the collecting box and the fermentation box, and an air outlet pipe for discharging waste gas is provided at the upper front end of the fermentation box. Ventilation inside the fermentation box can be achieved by arranging the air outlet pipe in cooperation with the ventilation assembly.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with the traditional food waste fermentation device, the food waste is usually directly fermented. Because the food waste particles are uneven and contain grease and salt, and the ventilation effect is poor or the temperature is unstable during the fermentation process, the fermentation efficiency is reduced. By setting a crushing component to crush the food waste, the particles of the food waste can be made more uniform, so that the filtration is more thorough. By setting a driving motor, the rotating shaft can be driven to rotate, so that the rotating shaft can drive the blade to rotate to crush the food waste. By setting a flushing component, the grease and salt in the food waste can be washed away by water pressure. By setting a water pressure controller, the water pressure can be controlled according to the actual cleaning situation, so that the nozzle on the inner side of the spray plate sprays water into the cleaning box to rinse the crushed food waste until the grease and salt on the food waste are washed away. By setting a vibration motor, the cleaning wastewater can be quickly passed through the first filter plate into the collection box below by vibration, thereby realizing the dehydration of the cleaned food waste to avoid excessive water affecting the fermentation effect.

[0014] 2. By setting up a ventilation component, purified fresh air can be continuously introduced into the fermentation box, and exhaust gas can be discharged through the exhaust pipe, thereby realizing internal air circulation and avoiding the accumulation of harmful gases that affect the fermentation efficiency. By setting up a second filter plate, external dust can be filtered and blocked to prevent it from entering the purification box. By setting up a fan, external air can be sucked into the purification box, and then by placing activated carbon and other materials for purifying the air in the purification box, a purification effect can be achieved. Finally, the purified air can be introduced into the fermentation box through air ducts that are interconnected with the fermentation box, thereby realizing the effect of ventilation. By setting up a control module, it can be used to control the temperature of the heating coil on the inner wall of the fermentation box, so that the fermentation box can always be in a suitable temperature environment, thereby achieving a better fermentation effect. With the mutual cooperation of the above components, the fermentation efficiency can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 What is shown is the overall schematic diagram of the efficient fermentation device for restaurant kitchen waste of the utility model;

[0016] Figure 2 Shown is a schematic diagram of another angle of the efficient fermentation device for restaurant kitchen waste of the utility model;

[0017] Figure 3 Shown is a schematic diagram of the first filter plate in the efficient fermentation device for food waste of the utility model;

[0018] Figure 4 Shown is a schematic diagram of a crushing component in a high-efficiency fermentation device for food waste of the utility model;

[0019] Figure 5Shown is a schematic diagram of a flushing component in the efficient fermentation device for food waste of the utility model;

[0020] Figure 6 Shown is a schematic diagram of the ventilation component in the efficient fermentation device for food waste of the present invention.

[0021] Explanation of the reference numerals: 1. crushing box; 2. crushing assembly; 3. flushing assembly; 4. ventilation assembly; 5. cleaning box; 6. collecting box; 7. fermentation box; 8. feed hopper; 9. drain pipe; 10. discharge pipe; 11. first filter plate; 12. vibration motor; 13. air outlet pipe; 14. control module; 15. foot column; 201. drive motor; 202. rotating shaft; 203. blade; 301. water tank; 302. spray plate; 303. connecting pipe; 304. nozzle; 305. water inlet pipe; 306. water pressure controller; 401. purification box; 402. fan; 403. second filter plate; 404. third filter plate; 405. air guide pipe; 406. box door. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1-3The utility model provides an embodiment: a high-efficiency fermentation device for food waste, comprising a crushing box 1, a crushing component 2, a flushing component 3, a ventilation component 4, a cleaning box 5, a collecting box 6, a fermentation box 7, a feed hopper 8, a drain pipe 9, a discharge pipe 10, a first filter plate 11, a vibration motor 12, an air outlet pipe 13, a control module 14 and a foot column 15. A crushing component 2 for crushing food waste is provided in the middle of the upper end of the crushing box 1, a cleaning box 5 for cleaning the crushed food waste is provided at the lower end of the crushing box 1, a control valve for controlling inlet and outlet is provided on the outer side of the connection between the crushing box 1 and the cleaning box 5, a feed hopper 8 for introducing food waste is provided at the left part of the upper end of the crushing box 1, a collecting box 6 for collecting cleaning waste water is provided at the lower end of the cleaning box 5, a first filter plate 11 for cleaning waste water to pass through is provided at the connection between the cleaning box 5 and the collecting box 6, and the first filter plate 11 is inclined. The right end of the cleaning box 5 is provided with a fermentation box 7 for fermenting the cleaned food waste, and the cleaning box 5 and the fermentation box 7 are connected. A control valve for controlling inlet and outlet is provided between the boxes 7, a flushing assembly 3 for flushing the crushed food waste is provided at the upper left part of the fermentation box 7, a ventilation assembly 4 for introducing fresh air into the fermentation box 7 is provided at the upper right part of the fermentation box 7, two sets of vibration motors 12 for vibration dehydration are relatively arranged at the front and rear ends of the cleaning box 5, a heating coil for heating is arranged around the inner wall of the fermentation box 7, a control module 14 for controlling the temperature of the heating coil is provided at the middle part of the front end of the fermentation box 7, a drain pipe 9 for discharging cleaning waste water is provided at the middle part of the lower end of the collection box 6, a discharge pipe 10 for discharging fermented materials is provided at the middle part of the lower end of the fermentation box 7, and control valves for controlling inlet and outlet are provided on the outside of the drain pipe 9 and the discharge pipe 10, the four corners of the lower ends of the collection box 6 and the fermentation box 7 are surrounded by supporting legs 15, and an air outlet pipe 13 for discharging exhaust gas is provided at the upper front end of the fermentation box 7. Ventilation inside the fermentation box 7 can be achieved by arranging the air outlet pipe 13 in cooperation with the ventilation assembly 4.

[0024] See also Figure 4 In this embodiment, the crushing component 2 includes a driving motor 201, a rotating shaft 202 and a blade 203. The lower end of the driving motor 201 is provided with a rotating shaft 202 for rotation. The outer side of the rotating shaft 202 is linearly distributed and surrounded by multiple groups of blades 203 for crushing the food waste. The driving motor 201 drives the rotating shaft 202 to rotate to drive the blades 203 to rotate synchronously. By setting the driving motor 201 to drive the blades 203 to rotate, the food waste can be broken up to make it more uniform.

[0025] See also Figure 5In this embodiment, the flushing assembly 3 includes a water tank 301, a spray plate 302, a connecting pipe 303, a nozzle 304, a water inlet pipe 305 and a water pressure controller 306. The water tank 301 is connected to the spray plate 302 through the connecting pipe 303. The spray plate 302 is arranged on the upper inner wall of the cleaning box 5. The connecting pipe 303 passes through the inner side of the cleaning box 5 and extends to the outer side to connect with the water tank 301. A plurality of nozzles 304 for spraying water are evenly arranged on the inner side of the spray plate 302. A plurality of nozzles 304 are provided to spray water evenly to rinse the crushed kitchen waste, so as to prevent residual grease or salt from affecting the fermentation effect. A water pressure controller 306 for controlling the water pressure is provided in the middle of the upper end of the water tank 301. A water inlet pipe 305 for introducing water is provided in the left upper end of the water tank 301. Control valves for controlling the inlet and outlet are provided on the outer sides of the water inlet pipe 305 and the connecting pipe 303. By providing the water pressure controller 306, the water pressure can be controlled according to the actual cleaning situation.

[0026] See also Figure 6 In this embodiment, the ventilation assembly 4 includes a purification box 401, a fan 402, a second filter plate 403, a third filter plate 404, an air duct 405 and a box door 406. A fan 402 for inhaling external air is provided in the middle of the rear end of the purification box 401. A second filter plate 403 for filtering dust is provided at one end of the fan 402 away from the purification box 401. A third filter plate 404 for filtering is provided at the upper part of the purification box 401. The area of ​​the purification box 401 below the third filter plate 404 is used to place activated carbon. By setting the second filter plate 403, the outside air can be Dust is filtered and blocked to prevent it from entering the purification box 401. Further filtering can be performed by setting a third filter plate 404 to prevent substances such as activated carbon from entering the air duct 405. The right end of the purification box 401 is provided with an air duct 405 for introducing purified air into the fermentation box 7, and the front end of the purification box 401 is provided with a box door 406 for opening and closing. The outer side of the connection between the air duct 405 and the purification box 401 is provided with a control valve for controlling entry and exit. The box door 406 is provided to facilitate regular replacement of substances such as activated carbon for purifying the air.

[0027] When working, firstly, the food waste is introduced into the crushing box 1 through the feed hopper 8, and then the crushing assembly 2 is used to crush the food waste. The driving motor 201 drives the rotating shaft 202 to rotate, so that the rotating shaft 202 drives the blade 203 to rotate to crush the food waste.

[0028] Then, the control valve between the crushing box 1 and the washing box 5 is opened, so that the crushed food waste enters the washing box, and then the crushed food waste is washed by the washing component 3. The water pressure is adjusted to a suitable level by the water pressure controller 306, so that the nozzle 304 inside the spray plate 302 sprays water into the washing box 5 to wash the crushed food waste, until the grease and salt on the food waste are washed away;

[0029] The vibration motors 12 at the front and rear ends of the cleaning box 5 are used to vibrate synchronously, so that the cleaning wastewater quickly passes through the first filter plate 11 and enters the collection box 6 below;

[0030] After the dehydration is completed, the control valve between the cleaning box 5 and the fermentation box 7 is opened, so that the dehydrated kitchen waste slides into the fermentation box 7 along the inclined first filter plate 11, and then the control valve is closed to start fermentation;

[0031] During the fermentation process, the internal temperature of the fermentation box 7 is adjusted and controlled within a reasonable range through the control module 14, and the interior of the fermentation box 7 is ventilated through the ventilation component 4, and the outside air is sucked into the purification box 401 through the fan 402, and the outside dust is filtered through the second filter plate 403 to block the dust outside, and then the air entering the purification box 401 is purified by placing activated carbon and other materials for purifying the air in the purification box 401, and finally, the purified air can be introduced into the fermentation box 7 through the air duct 405 that is interconnected with the fermentation box 7, and the exhaust gas can be discharged to the corresponding location simultaneously by using the exhaust pipe 13.

[0032] Through the above steps, the staff first introduces the food waste into the crushing box 1 through the feed hopper 8, and then uses the crushing component 2 to crush the food waste. The driving motor 201 drives the rotating shaft 202 to rotate, so that the rotating shaft 202 drives the blade 203 to rotate to crush the food waste. By setting the crushing component 2 to crush the food waste, the particles of the food waste can be made more uniform, so that the filtration is more thorough, and then the control valve between the crushing box 1 and the cleaning box 5 is opened to allow the crushed food waste to enter the cleaning box, and then the crushed food waste is rinsed by the flushing component 3, and the water pressure controller 306 is used to control the crushing of the food waste. The pressure is adjusted to a suitable size, so that the nozzle 304 inside the spray plate 302 sprays water into the cleaning box 5 to rinse the crushed food waste, until the grease and salt on the food waste are washed away, and the vibration motors 12 at the front and rear ends of the cleaning box 5 are vibrated synchronously, so that the cleaning waste water quickly passes through the first filter plate 11 and enters the lower collecting box 6 until the moisture on the food waste is removed. By washing the crushed food waste, grease and salt can be washed away to avoid affecting the fermentation effect. By setting the vibration motor 12, dehydration can be accelerated, and the dehydration effect can also be better to avoid excessive moisture affecting the fermentation. Finally, after dehydration is completed, open The control valve between the cleaning box 5 and the fermentation box 7 allows the dehydrated food waste to slide into the fermentation box 7 along the inclined first filter plate 11, and then the control valve is closed to start fermentation. During the fermentation process, the internal temperature of the fermentation box 7 is adjusted and controlled within a reasonable range through the control module 14. The control module 14 can be used to control the temperature of the heating coil on the inner wall of the fermentation box 7, so that the fermentation box 7 can always be in a suitable temperature environment, thereby achieving a better fermentation effect. The fermentation box 7 is ventilated through the ventilation component 4, and the outside air is sucked into the purification box 401 through the fan 402. The outside dust is removed through the second filter plate 403. Filter to block the dust outside, and then purify the air entering the purification box 401 by placing activated carbon and other materials for purifying the air in the purification box 401, and finally, the air duct 405 connected with the fermentation box 7 is provided to introduce the purified air into the fermentation box 7, and the exhaust gas is discharged to the corresponding location by using the exhaust pipe 13 at the same time. By providing the ventilation component 4, the purified fresh air can be continuously introduced into the fermentation box 7, and the exhaust gas is discharged through the exhaust pipe 13, thereby realizing internal air circulation and avoiding the accumulation of harmful gases that affect the fermentation efficiency. With the mutual cooperation of the above-mentioned components, the fermentation efficiency can be greatly improved.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A highly efficient food waste fermentation device, comprising a crushing box (1); characterized in that: The invention also comprises a crushing assembly (2), a flushing assembly (3), a ventilation assembly (4), a cleaning box (5), a collecting box (6), a fermentation box (7), a feeding hopper (8), a drainage pipe (9), a discharging pipe (10), a first filter plate (11), a vibration motor (12), an air outlet pipe (13), a control module (14) and a foot column (15). A crushing assembly (2) for crushing food waste is provided at the middle of the upper end of the crushing box (1). A cleaning box (5) for cleaning the crushed food waste is provided at the lower end of the crushing box (1). A control valve for controlling inlet and outlet is provided at the outer side of the connection between the crushing box (1) and the cleaning box (5). A feeding hopper (8) for introducing food waste is provided at the left upper end of the crushing box (1). A collecting box (6) for collecting cleaning waste water is provided at the lower end of the cleaning box (5). A first filter plate (11) for washing wastewater is provided at the connection with the collection box (6), and the first filter plate (11) is arranged in an inclined manner. A fermentation box (7) for fermenting the washed food waste is provided at the right end of the washing box (5), and a control valve for controlling the inlet and outlet is provided between the washing box (5) and the fermentation box (7). A flushing assembly (3) for flushing the crushed food waste is provided at the upper left part of the fermentation box (7), and a ventilation assembly (4) for introducing fresh air into the fermentation box (7) is provided at the upper right part of the fermentation box (7). Two sets of vibration motors (12) for vibrating and dehydrating are arranged opposite to each other at the front and rear ends of the washing box (5). A heating coil for heating is provided around and attached to the inner wall of the fermentation box (7), and a control module (14) for controlling the temperature of the heating coil is provided at the middle part of the front end of the fermentation box (7).

2. The high-efficiency fermentation device for kitchen waste according to claim 1, characterized in that: The pulverizing assembly (2) comprises a driving motor (201), a rotating shaft (202) and blades (203); a rotating shaft (202) for rotation is provided at the lower end of the driving motor (201); a plurality of groups of blades (203) for pulverizing food waste are linearly arranged around the outer side of the rotating shaft (202); the driving motor (201) drives the rotating shaft (202) to rotate, thereby driving the blades (203) to rotate synchronously.

3. The high-efficiency fermentation device for food waste according to claim 1, characterized in that: The flushing assembly (3) comprises a water tank (301), a spray plate (302), a connecting pipe (303), a nozzle (304), a water inlet pipe (305) and a water pressure controller (306); the water tank (301) and the spray plate (302) are connected via the connecting pipe (303); the spray plate (302) is arranged in close contact with the upper inner wall of the cleaning box (5); the connecting pipe (303) passes through the inner side of the cleaning box (5) and extends to the outer side to be connected to the water tank (301); and a plurality of nozzles (304) for spraying water are arranged on the inner side of the spray plate (302).

4. The high-efficiency fermentation device for food waste according to claim 3, characterized in that: A water pressure controller (306) for controlling the water pressure is provided at the middle of the upper end of the water tank (301), a water inlet pipe (305) for introducing water is provided at the left upper end of the water tank (301), and control valves for controlling the inlet and outlet are provided on the outer sides of the water inlet pipe (305) and the connecting pipe (303).

5. The high-efficiency fermentation device for food waste according to claim 1, characterized in that: The ventilation assembly (4) comprises a purification box (401), a fan (402), a second filter plate (403), a third filter plate (404), an air guide pipe (405) and a box door (406); a fan (402) for inhaling outside air is provided at the middle of the rear end of the purification box (401); a second filter plate (403) for filtering dust is provided at one end of the fan (402) away from the purification box (401); a third filter plate (404) for filtering is provided at the upper part of the purification box (401); and an area of ​​the purification box (401) below the third filter plate (404) is used to place activated carbon.

6. The high-efficiency fermentation device for food waste according to claim 5, characterized in that: An air guide tube (405) for introducing purified air into the fermentation box (7) is provided at the right end of the purification box (401), a box door (406) for opening and closing is provided at the front end of the purification box (401), and a control valve for controlling inlet and outlet is provided on the outer side of the connection between the air guide tube (405) and the purification box (401).

7. The high-efficiency fermentation device for food waste according to claim 1, characterized in that: A drainage pipe (9) for discharging cleaning waste water is provided at the middle of the lower end of the collecting box (6), a discharge pipe (10) for discharging fermented materials is provided at the middle of the lower end of the fermenting box (7), control valves for controlling inlet and outlet are provided on the outer sides of the drainage pipe (9) and the discharge pipe (10), supporting legs (15) are provided around the four corners of the lower ends of the collecting box (6) and the fermenting box (7), and an outlet pipe (13) for discharging waste gas is provided at the upper front end of the fermenting box (7).

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