KR19990004189A - Food waste disposal method with enhanced moisture control - Google Patents

Abstract

The present invention provides a food waste treatment method of enhanced moisture control function.

The food waste treatment method of which the moisture control function is enhanced includes a fermentation tank 11 for intermittently stirring, fermenting and decomposing the fermentation agent and food waste with the stirrer 16, a heater 15 for raising the internal temperature, and an outside air. A suction fan 19 for suction, an exhaust fan 19 'for deodorizing and discharging steam and gas generated during heating and fermentation, and a temperature sensor for generating a temperature value signal and a humidity value signal of the fermentation tank 11 ( 17) and the humidity sensor 18 and the temperature value signal and the humidity value signal are inputted to the motor 14, the heater 15, the suction fan 19 and the exhaust fan 19 'of the stirrer 16. In the food waste disposal device having the microcomputer 20a by controlling: If there is no re-injection after the initial input of the food waste, the water in the fermenter 11 is controlled in the range of 40 to 60% after the initial input time. By changing the stirring cycle of the stirrer 16 according to the step breaker program It characterized in that it comprises a step-by-step rest mode for processing food waste. Accordingly, the moisture in the fermentation tank 11 can be kept constant without falling below 30%, thereby preventing the activity of the fermentation agent from weakening, thereby maximizing the decomposition activity of the fermentation agent and the performance of the food waste processor. There is an effect such as to improve.

Description

Food waste disposal method with enhanced water level control

The present invention relates to a food waste treatment method with enhanced moisture control function, and more particularly, in a food waste disposal device having a structure capable of stirring, reducing water evaporation and fermenting and decomposing food waste by controlling by a microcomputer. It is related to the food waste treatment method of enhanced moisture control function by controlling the control every 1 to 4 days.

In general, each home or restaurant, such as the leftover (food waste) is discharged every day, such residues are used as livestock feed or simply filtered through the strainer and then discarded. These residue treatment methods increase the amount of food waste in the total amount of waste, and if the food waste is not disposed of smoothly, it causes odors and contaminates the surrounding drinking water or air. .

In the example food waste processor of FIG. 1, an input door 12 for injecting the residue and a discharge door 21 for removing the waste after treatment are formed outside the main body of the food waste processor made of a heat insulator. Inside the main body, a fermentation tank 11 for processing residue and a deodorizer (not shown) for removing odor generated during the residue treatment process are installed. The fermentation tank 11 is detachably installed in the main body so as to be detachable when removing the residue, or configured to remove the residue through the opening and closing door 22.

In addition, a stirrer 16 is rotatably mounted inside the fermentation tank 11 to decompose and process the remaining residue by stirring and fermenting the fermentation agent and the residue introduced from the outside. The stirrer 16 is disposed outside the fermentation tank 11. It is rotated forward and backward by receiving a driving force by the electric mechanism 13, such as a chain and a timing belt provided, and the motor 14, such as an AC induction system.

Meanwhile, a suction fan 19 and an exhaust fan 19 ′ are installed at the upper portion of the food waste processor, and the suction fan and the heater 15 installed therein are required by a kind of fan heater function. The outside air is heated and introduced, and the exhaust fan 19 ′ deodorizes the gas (including water vapor) generated inside through the deodorizer and discharges it to the outside. A conventional deodorizer is a device for adsorbing malodor using activated carbon and is installed in the upper exhaust passage of the food waste processor.

The motor 14, the heater 15, the suction fan 19 and the exhaust fan 19 ′ are connected to a control panel 20 using a microcomputer, so that the operation of the food waste disposal system is controlled by a predetermined procedure or program. It may be configured to be controlled. The control panel 20 also controls the operation of the food waste processor in a sequential or manual operation according to the set operation mode, and receives the input of the temperature sensor 17 and the humidity sensor 18 installed inside the drying vessel. Depending on the internal temperature and humidity conditions, the operation of the food waste processor may be controlled. An example of the control system is shown in FIG. 2 and a conventional food waste disposal method by the control system is shown in FIG.

After the food waste is put in FIG. 2, the current temperature value and humidity value are A from the temperature sensor 17 and the humidity sensor 18 from the time when the input door 12 is closed to the input door sensor 12 ′. When inputted to the microcomputer 20a via the / D converters 20b and 20c, the heater 15, the motor 14, the suction fan 19 and the exhaust fan are driven through the driving units 20d and 20e by a predetermined program. 19 ') to adjust the temperature and humidity to 20 to 30 ° C. and 40 to 60% and to rotate the stirrer 16 intermittently forward and reverse to maintain optimal fermentation or decomposition conditions of the food waste.

That is, in step S1 of FIG. 3, the preparation mode is performed in step S2 when the open / close state of the input door 12 is sensed. That is, the current mode is saved, the reference temperature is 10 ° C, the LED blinks to indicate that it is ready, the drive motor 14 of the agitator 16 is stopped, and the exhaust fan 19 'is turned on and suction The fan 19 is turned off to perform the process of discharging the odor. Then, in step S3, the state of the input door 12 is sensed again, and if it is in the open state, the process returns to step S1 and the program is executed again. If it is in the closed state, whether the system has been driven in step S4 for one day has passed. To judge. That is, it is determined whether to re-introduce before or after 1 day after the input of the food waste, and if it is 1 day before, it resets only the time in step S5 to start from the beginning. Set it to mode and reset the time to start again from the beginning.

Then, if the closed state of the input door 12 is sensed in step S1, it is determined whether 4 days have elapsed from the time of driving the system in step S7, and when it has passed, it is determined that moisture has been reduced, and thus, The rest mode is performed to increase (step S8). In the rest mode, the reference temperature is 10 DEG C, the LED is the standard, and the driving cycle of the motor 14 of the stirrer 16 is carried out for one cycle every 4 hours in step S17 while suppressing evaporation and discharge of moisture. The current temperature value is detected from the temperature sensor 17 to determine whether the heater 15 operates.

On the other hand, if four days have elapsed in step S7, the mode is selected from the initial mode, the strong mode and the standard mode in step S9, and the selected mode is executed in the next step. That is, in the initial mode of step S10, the reference temperature is set to 30 ° C, the LED is the standard, and the driving cycle of the motor 14 of the stirrer 16 is performed for 1 hour and 1 cycle for 2 hours (step S12). The fermentation agent and food waste are mixed and the temperature is raised to promote the decomposition of food waste while evaporating and discharging the decomposed water and gas and returning to the standard mode (step S13). If the strong mode is selected, the reference temperature is set to 30 DEG C in step S14, the LED is made strong, and the driving cycle of the motor 14 of the stirrer 16 is changed for 1 hour and 1 cycle for 4 hours (step S15). In order to facilitate decomposition by stirring food waste for a long time, go to step S15 'and return to the standard mode.

When the standard mode is selected, the reference temperature is set to 20 ° C. in step S16, the LED is set as the standard, and 4 days before re-insertion after the cycle of 1 cycle of 1 hour of driving cycle of the motor 14 of the agitator 16 is added. Continue to do this to dispose of food waste for a long time.

The selection of this mode is different depending on the temperature of the outside or the food waste, and is configured to select the optimal treatment conditions according to the conditions of the outside and the food waste.

On the other hand, after the mode is selected and set, in step S17, the temperature by the temperature sensor 17 is sensed and compared with the set temperature, and if the set temperature is lower than the set temperature, the heater 15, the suction fan 19 and In order to improve the fermentation condition by turning on the exhaust fan 19 ', the air is sucked in and the internal temperature is increased. If the temperature is higher than the set temperature, the heater 15 and the suction fan 19 are turned off in step S19 and the exhaust fan ( 19 ') is turned on to discharge the decomposed gas. Then, while the motor 14 is stopped in step S20, the motor returns to the initial state to detect other changes and change processing conditions. During operation, the suction fan 19 and the exhaust fan 19 'are turned on in step S21. In addition, it is determined whether the motor 14 is overloaded in step S22 in comparison with the rated current of the motor driving current rule, and when it is overloaded, the motor is driven in reverse direction for a predetermined time so as to release the overload state in step S23. In addition, in step S24, the current humidity value is input from the humidity sensor 18 to determine whether it is over-humidified. In the case of over-humidity, the motor agitation frequency is changed from one cycle to three cycles in step 25, and the water is discharged quickly. Return to.

However, the food waste processor controlled by the above-described flow chart is controlled to perform the rest mode in step S8 if there is no re-injection of the food waste until 4 days have elapsed, but the fermentation tank 11 may elapse as time passes without re-injection of the food waste. ) After 3 days, the water content decreases to 30%, and after 4 days, it drops to 20%. When the water reaches 30% or less, it enters a dormant phase where fermenter activity is weakened. Even after the elapse of time, there is a problem that only the evaporation of moisture occurs without decomposition.

The present invention is to solve the above problems, by changing the rest mode without the re-introduction of food waste to maintain a constant moisture state in the fermenter to maximize the decomposition activity of the fermentation agent and improve the performance of the food waste processor The purpose is to provide a food waste disposal method with enhanced moisture control.

1 is a cross-sectional view schematically showing the configuration of a main part of a conventional food waste processor;

2 is a block diagram showing the configuration of the control system of the food waste disposal system of FIG.

3 is a cross-sectional view showing in detail a conventional method for treating food waste,

Figure 4 is a flow chart illustrating in detail the food waste treatment method is enhanced moisture control function according to an embodiment of the present invention.

Explanation of the main symbols used in the drawings

11: Fermentation tank 12: Input door

13: Power transmission mechanism 14: Motor

15: Heater 16: Agitator

17: temperature sensor 18: humidity sensor

19: suction fan (internal circulation fan) 19 ': exhaust fan

20: control panel 21: discharge door

22: opening and closing door

In order to achieve the above object, a food waste treatment method of enhanced moisture control function according to an embodiment of the present invention includes a fermentation tank for intermittently stirring, fermenting and decomposing food waste by putting a fermenter inside and adding a fermenter. , A heater for raising the internal temperature, a suction fan for sucking outside air, an exhaust fan for deodorizing and discharging steam and gas generated during heating and fermentation, and a temperature value signal and a humidity value signal To a food waste processor having a temperature sensor and humidity sensor for generating a signal, and a control panel with a microcomputer for controlling the motor, the heater, the suction fan, and the exhaust fan of the stirrer by receiving the temperature value signal and the humidity value signal. In the absence of re-injection after the initial input of food waste, the moisture in the fermenter is controlled in the range of 40 to 60%. After initial lock the input over a period of time characterized in that it comprises a step by step break mode to process the food waste by a step by step break the program by changing the stirring period of the agitator.

The gradual rest mode is a one-day rest mode in which the stirrer is rotated for 1 minute every 1 hour for 1 minute between 1 day and 2 days after the initial dose, and between 1 and 2 days for 1 minute in 2 hours. 2 days rest mode for 1 cycle forward and reverse rotation, 3 days rest mode for 1 cycle every 1 hour for 3 minutes between 3 days and 4 days, and 1 minute every 4 hours after 4 days It can be configured as a four day rest mode while rotating one cycle forward and backward.

On the other hand, in the strong mode, within 1 day after the input of the food waste, the reverse rotation speed of the stirrer is 5: 2: 4: 2 (forward, reverse, forward, reverse rotation) every 6 minutes for 4 hours for 6 minutes 30 seconds. It is configured to return to the standard mode after 4 hours of operation to further enhance the operation, and the standard mode is operated for 6 minutes and 30 seconds with the forward and reverse speed of the stirrer at 5: 2: 4: 2 every 1 hour and thereafter. By driving the stirrer at 1: 1: 1: 1 for two minutes, the food waste can be operated more reliably depending on the mode by providing a difference between the strong mode and the standard mode, unlike the conventional strong mode and the standard mode. After one day, the food will enter the appropriately staged rest mode to maintain the optimum food waste disposal conditions.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

4 is a flow chart illustrating a food waste treatment method of enhanced moisture control according to an embodiment of the present invention.

The food waste treatment system to which the food waste treatment method of enhanced moisture control function as an embodiment of the present invention shown in FIG. 4 is applied is shown with respect to the conventional food waste processor and its processing system as shown in FIGS. 1 and 2. Although the present invention is not limited to this, the present invention is not limited to any conventional food waste treatment apparatus, while there is no re-injection after the initial introduction of the food waste. In order to control the moisture in the fermentation tank 11 in the range of 40 to 60%, the step of resting mode of treating food waste by the step breaker program is changed by changing the stirring cycle of the stirrer 16 with the passage of time after the initial injection. As far as it can, the present invention can be applied.

As shown in FIG. 1, a treatment device for food waste to which the present invention is applied includes a stirrer 16, a fermentation tank 11, a heater 15, a suction fan 19, an exhaust fan 19 ′, a temperature sensor 17 and Humidity sensor 18 and the input door sensor 12 ', the control system as shown in Figure 2, the microcomputer 20a built in the control panel 20, and converts the analog value to a digital value to the microcomputer A / D converters 20b and 20c for input to the 20a, and commands from the microcomputer 20a are outputted to the heater 15, the motor 14, the suction fan 19 and the exhaust fan 19 '. Driving parts 20d and 20e are provided to drive the motor.

In the food waste processor and its control system having such a configuration, according to the present invention, when there is no re-injection after the initial introduction of the food waste, the water in the fermentation tank 11 is controlled so as to be controlled in the range of 40 to 60%. By changing the stirring cycle of the stirrer 16 with the passage of time includes a step break mode for processing food waste by a step break program.

In a specific embodiment, the progressive rest mode includes a one-day rest mode (step S76), a two-day rest mode (step S74), a three-day rest mode (step S72), and a four-day rest mode (step S8). .

The one-day rest mode is a step of rotating the stirrer 16 for one minute per hour for one hour between 1 day and 2 days if there is no re-injection after the initial input of food waste, and the 2 day rest mode, If there is no re-injection after the initial input of the food waste, the step of rotating the stirrer 16 for one minute every two hours between two days to three days, and the three-day rest mode, the same food waste If there is no re-injection, the stirrer 16 is rotated for one minute every three hours for three minutes between three days and four days, and the four-day rest mode is restarted four days after the initial input of food waste. If there is no input, the stirrer 16 is rotated by one cycle for one minute every four hours.

Therefore, in step S6 in FIG. 4, after 4 days have passed in step S7 without the opening signal of the input door sensor 12 ′, go to step S8 and set to the 4 day rest mode (step S8), and the microcomputer 20a as set. When it is determined that 4 days have not elapsed in step S7, it is determined whether 3 days have elapsed in step S71, and when 3 days have elapsed, a 3 day rest mode is performed in step S72.

In addition, if it is determined that 3 days have not elapsed in the step S71, it is determined whether 2 days have elapsed in step S73, and when the elapsed time has elapsed, the control is set to the 2 day rest mode in step S74, and 2 days in step S73 are performed. When it is determined that it has not elapsed, it is determined whether 1 day has elapsed in step S75, and when 1 day has elapsed, the 1 day rest mode is performed in step S76. When step S72, step S74 or step S76 is performed as described above, step S17 is performed. When one day has not elapsed in step S75, the process goes to step S9 to select a mode and the initial mode (step as described in the related art). S10), the strong mode (step S14) and the standard mode (step S16) are selected and performed.

The initial mode (step S10), the strong mode (step S14) and the standard mode (step S16) may be set and carried out as in the prior art, but in the present invention, in relation to the division of the above-mentioned rest mode, The distinction was made so that food waste can be disposed of effectively and in a short time. That is, in the strong mode, within 1 day after the food waste is put in, the reverse rotation speed of the stirrer is 5: 2: 4: 2 (forward, reverse, forward, reverse rotation) every 6 minutes for 4 hours for 6 minutes 30 seconds. After driving for 4 hours at step S15 to return to the standard mode (step S15 ′) to further enhance agitation, and the initial mode at step S10 during the initial 1 hour at 5: 2: 4: It is configured to run for 6 minutes and 30 seconds to 2, and then to perform the standard mode in step S13, and in step S16 as a standard mode, the agitator is rotated for 1 minute at 1: 1: 1: 1 every 1 hour. Configured to drive.

Thereafter, the current temperature value signal detected by the temperature sensor 17 in step S17 is input through the A / D converter 20b and compared with the temperature value set by the microcomputer 20a, and if the set temperature is less than the conventional temperature value. As described in the art, in step S18, the heater 15, the suction fan 19 and the exhaust fan 19 'are given an ON command to be driven through the driving units 20d and 20e.

On the other hand, if the temperature is equal to or higher than the set temperature in step S17, the heater 15 and the suction fan 19 are turned off in step S19 and the ON command is issued only to the exhaust fan 19 'to drive the exhaust fan via the driving unit 20e. It will deodorize and discharge odor generated during fermentation and decomposition.

In addition, after performing steps S18 and S19, go to step S20 to determine whether the motor 14 is operated, and when stopped, return to the initial state and perform the above-described process again, and when the motor 14 is operated, In S21, the suction fan 19 and the exhaust fan 19 'are turned on to introduce air necessary for the stirring of the stirrer 16, and to deodorize and discharge the gas generated by the stirring, and to determine whether the overload is performed in step S22. If the rated current is greater than or equal to, the current humidity value from the humidity sensor 18 is inputted in step S24, and if the rated current is greater than or equal to, the motor 14 is stirred faster than the forward / stirring cycle of the rotation of the stirring described in step S23. Vibrate. When the overload on the motor 14 is mostly released by the reverse vibration of the motor 14, the motor 14 returns to its initial state and repeats the above-described process. However, when not released, the emergency stop mode is omitted. It may also be configured to allow for repair.

If it is determined in step S24 that the humidity is over, in step S25 the stirring number of the stirrer 16 is increased to three cycles to perform stirring, and if normal, returns to the initial state and repeats the above-described process.

On the other hand, if the input door 12 is in the open state in step S1, as described in the prior art, performing the step S2 or less, and after setting the initial mode when one day has elapsed after driving the system in step S6, the above-described step Repeat to run.

According to the configuration and operation of the food waste treatment method of the enhanced water control function according to the embodiment of the present invention described above, if there is no re-injection of food waste even before 4 days, step S8, step S71, step S73, and step By performing the rest mode in S75 separately, even if the evaporation without re-injection of food waste, the water in the fermentation tank 11 can be kept constant without falling below 30% to prevent the activity of the fermenter from weakening. As a result, it is possible to maximize the decomposition activity of the fermentation agent and to improve the performance of the food waste processor.

Claims (5)

A stirrer 16 is installed inside the fermenter 11 for intermittently stirring, fermenting and decomposing food waste by adding a fermenter, a heater 15 for raising the internal temperature, and a suction fan for sucking outside air. 19, an exhaust fan 19 'for deodorizing and discharging water vapor and gas generated during heating and fermentation, and a temperature sensor installed inside the fermentation tank 11 to generate a temperature value signal and a humidity value signal (17) and the humidity sensor 18, the temperature value signal and the humidity value signal is input to the motor 14, the heater 15, the suction fan 19 and the exhaust fan 19 'of the stirrer 16. In the food waste disposer having a control panel 20 with a built-in microcomputer (20a) for controlling: If there is no re-injection after the initial input of food waste, the water in the fermentation tank 11 is controlled in the range of 40 to 60% The stirrer 16 according to the passage of time after the initial Food waste treatment method for enhanced moisture control, characterized in that it comprises a step-by-step rest mode to process the food waste by the step-breaker program by changing the stirring cycle. The method of claim 1, wherein the step rest mode includes a one-day rest mode (step S76) in which the stirrer 16 is rotated by one cycle for one minute every one hour between one day and two days after the initial dose. 2 days rest mode (step S74) in which the stirrer 16 is rotated for 1 minute every two hours (day S74) between 1 and 3 days, and the stirrer 16 is operated for 1 minute every 3 hours between 3 days and 4 days. 3-day rest mode to rotate 1 cycle forward and backward (step S72), and 4 days rest mode (step S8) to rotate the stirrer 16 for 1 minute every 4 hours after 4 days Food waste disposal method with enhanced moisture control function. According to claim 1 or 2, wherein the normal rotation speed of the stirrer 16 every 30 minutes for 4 hours within one day after the input of the food waste is 5: 2: 4: 2 (forward, reverse, forward, reverse Rotation for 6 minutes and 30 seconds, and return to the standard mode after 4 hours. Initially, the forward and reverse rotation speed of the stirrer 16 is 5: 2: 4: 2 for 6 minutes and 30 seconds. And an initial mode of driving, and a standard mode of driving the stirrer 16 for 2 minutes at 1: 1: 1: 1 every 1 hour thereafter. The method of claim 1 or 2, wherein in the one-day rest mode and the two-day rest mode, the suction fan 19 and the exhaust fan 19 'are driven during stirring to deodorize and discharge the generated gas, and the three-day rest mode. And 4 days in the rest mode when the agitation fan 19 when the agitation and the exhaust fan (19 ') only to turn on the deodorized, characterized in that the degassed, discharged food waste treatment method. The method of claim 1 or 2, wherein the reference temperature is set to 25 ° C in the 1 and 2 day rest mode, the reference temperature is set to 20 ° C in the 3 day rest mode, and the reference temperature is 10 in the 4 day rest mode. Food waste treatment method of enhanced moisture control, characterized in that set to ℃.