JP3317004B2 - Garbage drying machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage drying machine for treating kitchen garbage such as garbage, and more particularly to a means for shortening the processing time.

[0002]

2. Description of the Related Art As conventional garbage drying machines, there are a disposer for pulverizing garbage and flowing the garbage to sewage and a garbage dewatering machine for crushing, dewatering and collecting garbage. Disposers pollute rivers and cause environmental pollution in areas without sewage treatment facilities. On the other hand, a garbage dewatering machine collects dehydrated garbage, so that it does not directly cause environmental pollution. However, if the collected garbage is left unattended, it easily rots and generates a bad smell. Therefore, the garbage that has been dewatered and collected must be stored at a low temperature or frequently sent to a public garbage collection point for disposal.

[0003] As a means to cope with these problems, a garbage processing apparatus has been invented in which garbage is dried to reduce the original volume and weight and the processing is greatly simplified.

[0004]

However, in this type of processing apparatus, when the drying heater is controlled at a high temperature (150 ° C. or higher), if garbage and vinyl chloride are mixed into the storage container and thrown into the storage container, there is a problem. Poisonous gas is generated. Further, when the temperature of the drying heater is controlled at 150 ° C., that is, even when the drying heater is switched from ON to OFF at 150 ° C., the temperature rises to 150 ° C. or more due to the amount of heat stored in the drying heater (hereinafter, after turning OFF). Is referred to as overshoot). For this reason, the temperature inside the processing vessel is lower than 150 ° C.
Drying with warm air at 30 ° C. In this case,
There was a problem that the drying time was long. For example, although it depends on the amount of water contained in vegetables, fish, meat, and the like, garbage with a large amount of water may take ten and several hours to dry. Also, since the drying process takes a long time, the lid may be opened to add additional garbage on the way,
In this case, the odor during the drying process is radiated from the garbage drying machine at a stretch, which causes discomfort.

An object of the present invention is to solve the above-mentioned problems, and it is a first object of the present invention to reduce the overshoot of the drying heater, raise the drying control temperature, and shorten the drying processing time.

A second object of the present invention is to reduce the drying process time by easily transferring heat to the inside of the garbage and to prevent the garbage from being thrown in during the drying.

[0007]

First means SUMMARY OF THE INVENTION The above present invention for achieving the first object, a drying heater that dries the food waste, a temperature sensor for detecting the temperature of the drying heater, the The temperature at which the operation of the drying heater is stopped and the drying
Target value for temperature adjustment higher than the temperature at which the heater stops operating
A storage unit that stores a control temperature of the drying heater is, the detected temperature is the drying of the temperature sensor from the start of drying
A first timer for counting until the temperature at which the operation of the heater is stopped is reached; and when the temperature detected by the temperature sensor reaches the temperature at which the operation of the drying heater is stopped stored in the storage means, the operation of the drying heater is stopped. is stopped, and a second timer for measuring and control means, the stop time of the drying heater before Symbol control means decides that determines the stop time of the drying heater by counting time of the first timer, said control means When the timing of the second timer ends, the drying heater is operated, and the temperature detected by the temperature sensor is stored in the storage device.
The drying heater to reach the control temperature stored in the stage
This controls the operation of .

[0008] The second means of the present invention for achieving the second object, a drying heater that dries the food waste, a temperature sensor for detecting the temperature of the <br/> drying heater, the drying heater Higher than the specified control temperature, which is the target value
With multiple control temperatures dispersed to high and low temperature
A second storage means for storing the operation time corresponding to each of the control temperature, and a third timer for measuring the <br/> drying heater operation time during which the second memory means stores said second Comparing means for comparing the control temperature of the drying heater stored in the storage means with the temperature detected by the temperature sensor; and a second timer based on the input from the third timer and the comparing means .
The plurality of control temperatures and operations stored in storage means
Control means for controlling the operation of the drying heater according to time
It is provided with .

[0009]

According to the first aspect of the present invention, the time until the drying heater reaches the predetermined temperature is measured by the first timer, and the operation stop time of the drying heater is determined based on the measured time. That is, when the temperature rising speed is high, the overshoot becomes large. In this case, the stop time of the drying heater is increased, and the overshoot when the temperature of the drying heater is again raised to the control temperature is reduced.

According to the second means, the drying heater is controlled based on the control temperature and the operation time of the drying heater stored in the second storage means, and the combination of the control temperature and the operation time is stored in the second storage means. Since a plurality of storages are stored, the operation is controlled while changing the temperature of the drying heater.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. The configuration of the present embodiment will be described with reference to FIG. In FIG. 1, reference numeral 1 denotes a first timer for starting time measurement from the start of drying, and has a configuration for outputting an output signal to the control means 6. The control means 6 controls the operation of the drying heater 3 for drying the garbage, and inputs a temperature detected by a temperature sensor for detecting the temperature of the drying heater 3. Reference numeral 4 denotes a storage unit that stores a temperature at which the operation of the drying heater 3 is stopped and a control temperature of the drying heater 3. When the temperature detected by the temperature sensor 5 reaches the drying heater stop temperature of the storage unit 4, the first timer 1 is activated. End the timing. The control means determines the operation stop time of the drying heater 3 based on the time measured by the first timer, and the second timer 2 measures the operation stop time.

Next, the above operation will be described with reference to FIG. The garbage dryer is turned on,
When the control unit 6 starts energizing the drying heater 3, the first timer 1 starts counting time. The temperature sensor 5 constantly detects the temperature of the drying heater 3 and outputs it to the control means 6.
Then, the output of the temperature sensor 5 becomes a predetermined temperature (for example, 100
℃) to the control means 6. Here, the control means 6 having received this signal stops the timing of the first timer 1 and inputs the counted time. This input value is, for example, 4 minutes 30
Suppose it was seconds. The control means 6 determines the level of the value stored in the storage means 4 based on the table shown in FIG. 4 (here, level 3 is 40 seconds), and inputs a predetermined time of the level.

In response to this input, the control means 6 outputs an input value (40 seconds) to the second timer 2 and starts counting time. Simultaneously with this operation, the control means 6 stops the driving of the drying heater 3, and waits until the second timer 2 finishes measuring a predetermined time (40 seconds) (time point G in FIG. 3 ). Thereafter, when the second timer 2 finishes counting the predetermined time, it outputs a timing end signal to the control means 6, and upon receiving this, the control means 6 starts driving the drying heater 3 again from this point (point H in FIG. 3 ). ).
Then, the original control temperature of the drying heater 3, for example, 1
The temperature sensor 5 detects the time point when the temperature reaches 40 ° C., and the control means 6 stops driving the drying heater 3 (time point J in FIG. 3 ).

After the driving of the drying heater 3 is stopped, when the temperature decreases to less than 140 ° C., the control means 6 receives this signal from the temperature sensor 5 and starts the driving of the drying heater 3 again.
By repeating this operation, the temperature of the drying heater 3 is adjusted. Here, the temperature of the drying heater 3 to be carried out the operation from the G point of Fig. 3 to K time will show a temperature such as the graph L.

By performing the above control, the temperature changes as shown in the graph M, and it is possible to control the temperature peak to be suppressed. Therefore, the garbage at a temperature below the prohibited temperature (150 ° C. or more) is dried quickly. Thus, the control temperature can be increased to a temperature as low as possible (from 130 ° C. to 140 ° C. in the past).

Next, a second embodiment of the present invention will be described with reference to FIG. In the figure, reference numeral 15 denotes a drying heater for drying garbage in the garbage storage container.
Is detected by the temperature sensor 16. A second memory 14 stores a plurality of control temperatures and operating times of the drying heater.
The operation of the drying heater of the second storage means 14 is measured by the third timer 13 in the storage means. Reference numeral 18 denotes a comparison unit that compares the control temperature of the drying heater of the second storage unit 14 with the temperature detected by the temperature sensor 16, and outputs the result to the control unit 17. The control unit 17 receives the outputs of the third timer 13 and the comparison unit 18 and controls the operation time and the operation temperature of the drying heater 15. In addition, the control means 17 controls the second storage means 14
The operation of the drying heater 15 is controlled at a plurality of control temperatures and operating times.

Next, the operation of the above configuration will be described with reference to FIGS.
This will be described with reference to FIG. Here, for example, if the control temperature of the drying heater 15 is 130 ° C., the drying process is performed by radiating the heat of the drying heater 15 temperature-controlled to 130 ° C. to the garbage in the garbage storage container. .

In the present operation, the control means 17 first takes out the first control temperature and the stored value for a predetermined time from the second storage means 14 and inputs them (from FIG. 7, 130 ° C., 60 ° C.).
Seconds). At the same time, the control unit 17 outputs the input control temperature value (130 ° C.) to the comparison unit 18 and
Drive. The temperature sensor 16 detects the temperature of the drying heater 15 and constantly outputs the temperature to the comparing means 18.

The comparing means 18 compares the stored value (130.degree. C.) sent from the control means 17 with the stored value (130.degree. C.). If the signal matches the stored value, an arrival signal is output to the control means 17. If the temperature of the drying heater 15 reaches 130 ° C. (at the point A in FIG. 6), the output is output to the comparing means 18 and the comparing means 1
Reference numeral 8 compares the output of the temperature sensor 16 with the output (stored value) of the control means 17, and since it is 130 ° C., the arrival signal is
Output to

The control means 17 receiving this outputs the stored value for a predetermined time inputted from the second storage means 14 to the third timer 13, and operates the third timer 13 for 60 seconds. During the time period of the third timer 13, the comparing means 1
8 is different from the above during the stop of the timing, the stored value (1
A signal of less than or equal to 30 ° C. is output.

During this period, the temperature of the drying heater 15 is adjusted at the stored value of 130 ° C. of the second storage means 14.
Then, the output of the comparing means 18 which compares the output (130 ° C.) is input. If the signal is the above signal, the driving of the drying heater 15 is stopped.

This operation is continuously performed during the time counted by the third timer 13, and when 60 seconds of the time has elapsed, a time-out signal is output to the control means 17, and the control means 17 receiving the signal outputs the second signal. (123.5 ° C., 63 seconds) is input from the second storage means 14 (time point B in FIG. 6).

The control means 17 receives the control temperature value (1
23.5 ° C.) to the comparing means 18 and the drying heater 15
Drive. The temperature sensor 16 detects the temperature of the drying heater 15 and constantly outputs the temperature to the comparing means 18. Comparison means 1
The operation of No. 8 is as follows. The comparing means 18 compares the stored value (123.5 ° C.) sent from the control means 17 and stores the unreached signal unless the output from the temperature sensor 16 is the stored value sent from the control means 17. If the value is a value, an arrival signal is output to the control means 7.

The temperature of the drying heater 15 is 12
Assuming that the temperature reaches 3.5 ° C. (at a point C in FIG. 6), the output is output to the comparing means 18, and the comparing means 18 compares the output of the temperature sensor 16 with the output (stored value) of the control means 17,
Since the temperature is 123.5 ° C., an arrival signal is output to the control means 17. Upon receiving this, the control unit 17 sets the second storage unit 1
The stored value of the predetermined time inputted from 4 is output to the third timer 13, and the third timer 13 is operated for 63 seconds.

During the time period of the third timer 13, the output signal of the comparing means 18 is different from that during the above-mentioned time stop, and is different from the stored value (123.5.degree. C.). Output. During this period, the temperature of the drying heater 15 is adjusted to the value stored in the second storage means 14 of 123.5 ° C., so that the control means 17 constantly outputs the output of the temperature sensor 16 and the output from the control means 17 (123.5 ° C.). The output of the comparing means 18 is compared, and the driving of the drying heater 15 is stopped if the signal is higher than the output.
Drive.

This operation is continuously performed during the time counted by the third timer 13, and when the counted time of 63 seconds elapses, the third timer 13 outputs a time end signal to the control means 17,
Upon receiving this, the control means 17 sets the third stored value (143
° C, 54 seconds) from the second storage means 14. (FIG. 6
D time) By the above means performing each operation continuously,
As shown in FIG. 6, after the temperature of the drying heater 15 is controlled to 130 ° C., the temperature is controlled at 130 ° C. for 60 seconds, 123.5 ° C. for 63 seconds, and 14 ° C.
3 ° C. for 54 seconds, 117 ° C. for 66 seconds, 130 ° C. for 60 seconds,
The temperature and the time for maintaining this temperature are changed to 136.5 ° C. for 57 seconds.

Regarding this time, the control temperature of 130 ° C.
In the above example, if the time is Y and the temperature is X in the above example, Y = (130 / X) × 60, and the time is expressed as a function of the control temperature. (It can be said from this equation that the total power consumption does not change.) Here, the intention of causing the control temperature to vary as described above will be described. For example, when the drying heater 15 is driven at a constant control temperature, heat is transmitted to the surface of the garbage 12, but it takes time until the heat is transmitted to the inside.

On the other hand, when the control temperature is intentionally varied from the predetermined control temperature as in the present case, heat is easily transmitted to the inside of the garbage 12, and as a result, the time required for drying is reduced. This is because it can be done.

[0029]

As is clear from the above embodiments, according to the first means of the present invention, the temperature setting of the drying heater can be set to just below the prohibited temperature, and high heat is sent to the garbage. Drying time can be shortened.

Further, according to the second means, by intentionally varying the control temperature of the drying heater, heat can be quickly transmitted to the inside of the garbage and the drying time can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram of a circuit of a garbage drying processor showing a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating the operation of the same-size garbage drying processor.

FIG. 3 is a timing chart of each means of a circuit used in the same-size garbage drying processor.

FIG. 4 is a table showing storage contents of a storage means of the same-size garbage drying machine.

FIG. 5 is a block diagram of a circuit of a garbage drying processor showing a second embodiment of the present invention.

FIG. 6 is a timing chart of each means of a circuit used in the same-size garbage drying processor.

FIG. 7 is a table showing the contents stored in a second storage means of the same-size garbage drying machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st timer 2 2nd timer 3, 15 Drying heater 4 Storage means 5, 16 Temperature sensor 6, 17 Control means 13 3rd timer 14 2nd storage means 18 Comparison means

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Seichi Ueno 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-5-262403 (JP, A) JP-A-60 -246797 (JP, A) JP-A-1-1633591 (JP, A) JP-A-60-195000 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F26B 25/00 B09B 5/00

Claims (2)

(57) [Claims] Stop 1. A a drying heater that dries the food waste, a temperature sensor for detecting the temperature of the <br/> drying heater, the operating temperature and the drying heater to stop the operation of the drying heater
A storage means for storing a control temperature of the drying heater which is a target value of the temperature adjustment higher than a temperature at which the drying is stopped;
The temperature detected by the temperature sensor stops the operation of the drying heater.
A first timer for counting until the temperature reaches a temperature at which the drying heater stops, and when the temperature detected by the temperature sensor reaches a temperature at which the operation of the drying heater stored in the storage unit is stopped, the operation of the drying heater is stopped, and a second timer for measuring and control means, the stop time of the drying heater before Symbol control means decides that determines the stop time of the drying heater by counting time of the first timer, said control means the second
When the timer counts down, the drying heater is activated,
The temperature detected by the temperature sensor is stored in the storage unit.
Control the operation of the drying heater so as to reach a control temperature.
Garbage drying machine that. 2. A drying heater that dries the food waste, a temperature sensor for detecting the temperature of the <br/> drying heater than the predetermined control temperature is a target value of temperature control of the drying heater, high
With multiple control temperatures dispersed to high and low temperature
A second storage means for storing the operation time corresponding to each of the control temperature, and a third timer for measuring the <br/> drying heater operation time during which the second memory means stores said second Comparing means for comparing the control temperature of the drying heater stored in the storage means with the temperature detected by the temperature sensor; and a second timer based on the input from the third timer and the comparing means .
The plurality of control temperatures and operations stored in storage means
Control means for controlling the operation of the drying heater according to time
Garbage drying machine equipped with