KR19980051250A - Food Waste Disposal Machine Ozone Control - Google Patents

Abstract

The present invention relates to a food waste treatment device, and in particular, in the food waste treatment machine which mixes the food waste and the fermenting agent to fermentation and composting the food waste and then processes it through stirring, blowing, and heating, the stirring speed of the stirrer It relates to a food waste processor capable of detecting and controlling its stirring speed.

The present invention is a food waste processor for mixing food waste and fermentation agent, and fermenting the mixture to compost, the stirrer driving means capable of forward and reverse rotation to agitate the food waste mixture, the rotation speed of the stirrer driving means Stirring speed detection circuit unit including a photosensor for detecting the, a stirring speed control unit for controlling the power supply according to the signal of the microcomputer to control the rotation of the stirrer drive means, and receives a signal from the stirring speed detection circuit unit By providing a food waste processor comprising a microcomputer for processing according to a predetermined algorithm and outputting a control signal to the stirring speed control unit, the rotation speed is adjusted to obtain the optimum stirring effect of the food waste and fermentation agent mixture Make it possible to maintain a steady state.

Description

Food Waste Disposer with Stirring Speed Detection and Control

The present invention relates to a food waste treatment device, and in particular, in the food waste treatment machine which mixes the food waste and the fermenting agent to fermentation and composting the food waste and then processes it through stirring, blowing, and heating, the stirring speed of the stirrer It relates to a food waste processor capable of detecting and controlling its stirring speed.

Each household or restaurant discharges a certain amount of food waste every day. The food waste may be used as livestock feed, or may be discarded after filtering only the water mixed with the food waste through a simple strainer.

While the food waste disposal method increases the amount of garbage collection, if the garbage is not thrown away frequently, it causes odors and pollutes the surrounding air, which necessitates the use of a food waste disposal device.

1 shows an example of the food waste processor. The input door 12 for putting food waste and the discharge door 19 for taking out the processed food waste are formed outside the main body of the food waste processor, and the treatment tank 11 for processing the food waste inside the main body. And a deodorizing device for removing the odor generated during the food waste disposal process is installed.

Inside the treatment tank 11, the stirrer 16 is rotatably mounted to mix the fermentation agent and food waste put in from the outside, and induce the input food waste to be composted by fermentation. The stirrer 16 is rotated under the driving force by the reduction motor device 13 which is installed outside the processing tank 11 and is composed of a reduction gear train and a motor.

On the other hand, a fan heater device composed of a suction fan 14 for sucking outside air and a heater (not shown) installed to heat the air sucked by the suction fan 14 quickly removes water in the food waste and removes food. Reduce trash

At this time, the deodorizing device is installed on the upper part of the food waste treatment machine, and removes the odor generated in the fermentation process of the food waste, as well as the odor in the steam generated by the operation of the fan heater. This water vapor is again condensed in a chiller (not shown) and discharged to the outside.

In addition, the deceleration motor device, fan heater device, etc. connected to the stirrer 16 is connected to the control panel 18 to be controlled on, so that the operation of the food waste processor can be controlled by a predetermined program. The control panel 18 may control the operation of the food waste treatment apparatus sequentially according to a set time by having a timer, or by receiving an input of a temperature sensor installed in a drying container according to an internal temperature condition of the treatment tank 11. It is also possible to control the operation of the food processor.

In such a food waste disposal system, fermentation of food waste is smoothly performed when various conditions such as oxygen concentration, temperature, and humidity in the treatment tank are properly provided during the treatment with the food waste and fermentation agent mixture.

Therefore, the food waste and the fermenting agent, etc. put into the food waste disposal system should be stirred quickly and evenly. If this stirring is not performed, there is a problem that the progress of the fermentation is performed slowly and the mixed contents are not evenly fermented.

In addition, when an aerobic microorganism is used as a microorganism to carry out fermentation, it is necessary to perform agitation frequently during the fermentation process so that a smooth supply of oxygen is provided. Otherwise, fermentation until sufficient oxygen supply is achieved. Problems arise that the progress of the action is paused.

At this time, sometimes the foreign matter is put into the food waste to cause an abnormality in the operation of the stirrer. Among these foreign substances, when a foreign substance of a hard material, for example, a metal dish or a food dish, is introduced, and the foreign substance is caught in the stirring blade portion and the treatment tank portion of the stirrer, the operation of the stirrer may be stopped.

In this case, the stirrer motor is overloaded, and if the motor continues to be damaged, there is a risk of fire due to damage or overcurrent of the product.

The present invention has been made in order to solve the above problems, while controlling the stirring speed by sensing the stirring speed of the stirrer to prevent the rotation in the overload state while performing the optimum stirring operation in the food waste treatment machine It is an object of the present invention to provide a food waste handler with a function of detecting an overload condition.

1 is a perspective view showing an example of the configuration of a food waste processor to which the present invention is applied;

2 is a circuit diagram showing an example of a circuit configuration of a food waste disposal system to which the present invention is applied.

* Explanation of symbols for main parts of the drawings

225: stirrer driving means 226: housing

227: light reflection jaw 300: stirring speed detection circuit

310: photosensor 320: waveform shaping circuit

400: stirring speed control unit 410: operational amplifier

In order to achieve the above object, the present invention, in the food waste treatment machine for mixing food waste and fermentation, and fermenting the mixture to compost, the stirrer driving means capable of forward and reverse rotation to agitate the food waste mixture, Stirring speed sensing circuit unit including a photosensor for sensing the rotational speed of the stirrer driving means, a stirring speed control unit for controlling the power supply according to the signal of the microcomputer to control the rotation of the stirrer driving means, and the stirring speed It receives a signal from the sensing circuit unit according to a predetermined algorithm to provide a food waste processor characterized in that it comprises a micom for outputting a control signal to the stirring speed control unit.

Example

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Figure 2 is a block diagram showing an example of the overall circuit configuration of the food waste disposal system to which the present invention is applied.

The circuit is large in view of the microcomputer 100, and includes an agitator driving circuit unit 220, a display circuit unit 210, a fan driving circuit unit 240, a heater driving circuit unit 250, a control panel 120, and a temperature sensing circuit unit ( 130, the door opening and closing monitoring circuit unit 140, the power circuit unit 110, and comprises a stirring speed detecting unit 300 and the stirring speed control unit 400 according to the present invention.

The operation of the food waste disposal system of the above configuration will be briefly described. The food waste processor is supplied with power through the power circuit unit 110 and supplied to the circuit elements such as the microcomputer 100, while the agitator driving circuit unit to perform the stirring action to mix the food waste and fermenter well ( 220).

The fan driving circuit unit 240 and the heater driving circuit unit 250 have a function of heating the temperature to control the fermentation of the mixture on which the stirring is performed, or introducing external air for smooth oxygen supply. .

Figure 3 (A) is a view showing an example of the mechanical configuration of the stirrer rotation detection unit according to the present invention. When the stirrer drive means 225 rotates, the housing 226 connected to the rotating shaft of the drive means rotates and the photosensor 310 reacts as the housing 226 rotates.

The photosensor 310 includes a light emitting unit and a light receiving unit. As the driving means 225 rotates, the housing 226 rotates, and the light reflection jaw 227 is formed on the side surface of the housing 226 so that light from the light emitting part is blocked and then received again. The operation is made, the output of the photosensor 310 is output in the form of a pulse.

Figure 3 (B) is a circuit diagram showing an example of the stirring speed detecting unit 300 configured according to the present invention. This circuit is connected to the microcomputer 100 operating according to a predetermined algorithm, the housing of the stirrer drive shaft to detect the rotation thereof, the power supply for supplying power to the light emitting element of the photosensor 310 (Vcc And an input waveform shaping circuit 320 for inputting the detection result of the photosensor 310 to the microcomputer 100.

An example of the input waveform shaping circuit 320 includes a resistor R 1 and a capacitor C 1 as shown in the circuit diagram to prevent malfunction due to the edge portion of the pulse.

3 (C) shows a control circuit for controlling the rotational speed by applying the output signal from the microcomputer 100 to the stirrer driving means 220. This circuit comprises a microcomputer 100 having three output terminals for outputting a control signal, an operational amplifier 410, and a drive control transistor Q 1.

When the three output terminals are a, b, and c, respectively, when none of these output terminals are output, the stirrer driving means 250 stops. On the other hand, when the output terminal only outputs a terminal a, the stirrer driving means 250 rotates with a small number of revolutions, and when outputted at the terminal b and a terminal at the same time as the rotation speed of the intermediate size, a, b, c When the output comes out of both terminals, the stirrer driving means 250 rotates at the maximum speed.

The output of the microcomputer 100 is applied to one input of the operational amplifier 410. The discrete operation amplifier 410 receives each of the above-described outputs as inputs, and outputs the output voltages in stages. Accordingly, as the base potential of the current control transistor Q 1 connected to the output of the operational amplifier 410 rises, the transistor Q 1 is turned on, and the driving means rotates. The rotation speed of) can be changed step by step

At this time, as an embodiment of the present invention by detecting the stirring speed in the stirring speed detecting unit 300 it is also possible to detect whether the driving means 226 is overloaded. This is achieved by inputting the output from the stirring speed detecting unit 300 to the microcomputer 100 and detecting whether the rotation is performed according to a predetermined algorithm.

Usually, when the overload occurs, the rotation speed decreases. Therefore, the microcomputer 100 also compares the control step in the stirring speed control circuit with the rotational speed of the stirrer driving means, and it is also possible to recognize that the stirrer is overloaded when its rotation speed is smaller than the command value.

As described above, the food waste treatment device having a stirring speed detection and control function according to the present invention enables the rotation speed to be maintained in a steady state in order to obtain an optimum stirring effect of the food waste and fermentation agent mixture.

In addition, the above-described stirring speed detection function also provides an effect of detecting an overload condition due to foreign matters in the stirrer treatment tank.

While the invention has been shown and described with respect to certain preferred embodiments, it will be appreciated that the invention can be modified and modified in various ways without departing from the spirit or scope of the invention as set forth in the claims below. Those skilled in the art will readily know.

Claims (2)

In the food waste treating apparatus for mixing food waste and fermentation agent, and fermenting the mixture to compost the food waste, the stirrer driving means 225 capable of forward and reverse rotation of the food waste mixture, the stirrer driving means 225 Stirring speed sensing circuit unit 300 including a photosensor 310 for detecting the rotational speed, the stirring speed to control the power supply according to the signal of the microcomputer 100 to control the rotation of the stirrer driving means 225 The control unit 400, and receives the signal from the stirring speed detection circuit unit 300 is processed according to a predetermined algorithm to output a control signal to the stirring speed control unit 400, characterized in that it comprises a micom (100) Food waste handler. According to claim 1, wherein the stirring speed control unit 400 is a stirring speed control unit 400 is configured to include an operational amplifier 410 and the drive control transistor (Q 1) receiving the output from the microcomputer 100 A food waste processor characterized by the above.