JPH07260356A - Raw garbage drying machine - Google Patents

Abstract

(57) [Abstract] [Purpose] The control temperature is raised by suppressing the overshoot of the temperature of the drying heater, and high heat is transferred to the garbage.
The purpose is to shorten the drying time. [Constitution] A drying heater 3 for drying raw garbage, a temperature sensor 5 for detecting the temperature of the drying heater 3, and a drying heater 3
The storage means 4 stores the temperature at which the operation of (3) is stopped and the control temperature of the drying heater, and the first timer 1 for starting the time measurement from the start of drying. When the temperature detected by the temperature sensor 5 reaches the temperature at which the operation of the drying heater of the storage unit 4 is stopped, the control unit 6 stops the operation of the drying heater 3 and also stops the drying heater by the time measured by the first timer 1. To decide. The stop time of the drying heater determined by the control means 6 is timed by the second timer 2, and when the time is finished, the drying heater 3 is operated and the operation of the drying heater is controlled by the control temperature of the storage means 4. .

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art As conventional food waste drying machines, there are a disposer for crushing food waste and flowing it into sewage, and a food waste dehydrator for crushing and dehydrating food waste. Disposers pollute rivers in areas without sewage treatment plants and cause environmental pollution. On the other hand, the food waste dehydrator collects dehydrated food waste and thus does not directly cause environmental pollution, but if the collected food waste is left as it is, it is easily decomposed and produces an offensive odor. Therefore, it is necessary to store dehydrated and collected food waste at a low temperature or to frequently discharge it to a public waste collection site for processing.

As a means for dealing with these problems, there has been invented a food waste processing apparatus which is capable of drying food garbage to reduce the original volume and weight thereof and thereby greatly simplifying the processing.

[0004]

However, in this type of processing apparatus, when the drying heater is controlled at a high temperature (150 ° C. or higher), when garbage and vinyl chloride, etc. are mixed into the storage container and thrown in, 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 (after turning OFF afterwards). The rise in temperature is referred to as overshoot). For this reason, the temperature inside the processing container is lower than 150 ° C.
It is dried with warm air at 30 ° C. In this case,
There is a problem that the drying processing time becomes long. For example, although it depends on the amount of water contained in vegetables, fish, meat, etc., it may take a dozen or more hours to dry the garbage containing a large amount of water. Also, because the drying process takes a long time, the lid may be opened to add additional garbage in the middle,
In this case, the odor during the drying process is also dissipated at once from the garbage drying machine, which gives an unpleasant feeling.

SUMMARY OF THE INVENTION The first object of the present invention is to solve the above problems and to reduce the overshoot of the drying heater to raise the drying control temperature and shorten the drying processing time.

A second object is to easily transfer heat to the inside of the garbage to shorten the drying processing time and prevent the garbage from being fed during the drying process.

[0007]

A first means of the present invention for achieving the above first object is a drying heater for drying raw garbage, a temperature sensor for detecting the temperature of the drying heater, and a drying heater. Means for stopping the operation of the drying heater and the control temperature of the drying heater, a first timer for starting timing from the start of drying, and a temperature sensor for stopping the operation of the drying heater of the storing means. When the detected temperature reaches, the operation of the drying heater is stopped, and the control means for determining the stop time of the drying heater based on the time measured by the first timer, and the stop time of the drying heater determined by the control control means are timed. A second timer for operating the drying heater when the second timer finishes measuring the time, and controls the operation of the drying heater at the control temperature of the storage means. One in which the.

A second means of the present invention for achieving the above second object is a drying heater for drying raw garbage, a temperature sensor for detecting the temperature of the drying heater, a control temperature and an operating time of the drying heater. A plurality of second storage means for storing a plurality of items and a third storage means for measuring the drying heater operating time of the second storage means
The output of the timer, the comparing means for comparing the control temperature of the drying heater of the second storage means and the temperature detected by the temperature sensor, and the output of the third timer and the comparing means are input to determine the operating time and operating temperature of the drying heater. Control means for controlling is provided, and the control means is configured to control the operation of the drying heater at a plurality of control temperatures and operation times of the second storage means.

[0009]

According to the first means of the present invention, the time until the drying heater reaches the predetermined temperature is measured by the first timer, and the operation time of the drying heater is determined based on the measured time. That is, when the temperature rising speed is fast, the overshoot becomes large. In this case, therefore, the drying heater is stopped for a long time to reduce the overshoot when the temperature of the drying heater is raised to the control temperature again.

According to the second means, the drying heater is controlled based on the control temperature and the operating time of the drying heater stored in the second storing means, and the combination of the controlling temperature and the operating time is stored in the second storing means. Since a plurality of data 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 this embodiment will be described with reference to FIG. In FIG. 1, reference numeral 1 is a first timer that starts timing from the start of drying, and is configured to output an output signal to the control means 6. The control means 6 controls the operation of the drying heater 3 for drying raw garbage, and inputs the detection temperature of the 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 detection temperature of the temperature sensor 5 reaches the drying heater stop temperature of the storage unit 4, the first timer 1 I am trying to finish the timing of. 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 this operation stop time.

Next, the above operation will be described with reference to FIG. Power is turned on to the raw garbage drying machine main body,
When the control means 6 starts energizing the drying heater 3, at the same time, 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 is a predetermined temperature (for example, 100
(° C.) is output to the control means 6. Here, the control means 6 receiving this signal stops the time counting of the first timer 1 and inputs the time counting time. This input value is 4 minutes 30
Suppose it was seconds. The control means 6 judges which level of the value stored in the storage means 4 this value is based on the table of FIG. 3 (here, level 3 is 40 seconds because it is level 3), and the predetermined time of that level is input.

Upon receipt of this input, the control means 6 outputs the input value (40 seconds) to the second timer 2 and starts time counting. 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 the predetermined time (40 seconds) (time G in FIG. 4). After that, when the second timer 2 has finished counting the predetermined time, it outputs a timing end signal to the control means 6, and the control means 6 receiving this signal starts driving the drying heater 3 again from this point (time H in FIG. 4). ).
The original control temperature of the drying heater 3, for example, 1
When the temperature reaches 40 ° C., the temperature sensor 5 detects the temperature, and the control unit 6 stops driving the drying heater 3 (time J in FIG. 4).

After the driving of the drying heater 3 is stopped, when the temperature drops to less than 140 ° C., the control means 6 receives this signal from the temperature sensor 5 and starts driving the drying heater 3 again.
By repeating this operation, the temperature of the drying heater 3 is adjusted. Here, if the above operation is not performed, the temperature of the drying heater 3 from the time point G to the time point K in FIG.

By carrying out the above-mentioned control, the temperature changes as shown by the graph M, and it becomes possible to control the temperature peaks. Therefore, it is possible to quickly dry raw garbage at a temperature below the prohibited temperature (150 ° C. or higher). It is possible to raise the control temperature to a temperature as close as possible to (the conventional temperature can be changed from 130 ° C. to 140 ° C.).

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 the raw garbage in the raw garbage storage container.
The temperature of is detected by the temperature sensor 16. Reference numeral 14 is a second storage that stores a plurality of control temperatures and operating times of the drying heater.
In the storage means, the dry heater operating time of the second storage means 14 is counted by the third timer 13. Reference numeral 18 is a comparison means for comparing the control temperature of the drying heater of the second storage means 14 with the detection temperature of the temperature sensor 16 and outputs the comparison temperature to the control means 17. The control means 17 inputs the outputs of the third timer 13 and the comparison means 18, and controls the operating time and operating temperature of the drying heater 15. Moreover, the control means 17 includes the second storage means 14
The operation of the drying heater 15 is controlled by a plurality of control temperatures and operating times.

Next, the operation of the above configuration will be described with reference to FIGS.
Will be described with reference to. Here, for example, if the control temperature of the drying heater 15 is 130 ° C., the heat of the drying heater 15 whose temperature is adjusted to 130 ° C. is radiated to the raw garbage in the raw garbage storage container to perform the drying process. .

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

The comparison means 18 compares with the stored value (130 ° C.) sent from the control means 17, and if the output from the temperature sensor 16 does not match the stored value sent from the control means 17, it has not arrived. If the signal matches the stored value, the arrival signal is output to the control means 17. If the temperature of the drying heater 15 reaches 130 ° C. (time A in FIG. 6), the output thereof is output to the comparing unit 18, and the comparing unit 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 controlled by the control means 17
Output to.

Upon receiving this, the control means 17 outputs the stored value of the predetermined time input 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 comparison means 1
The output signal of 8 is different from that during the above time stop, and the stored value (1
A signal of less than and a signal of more than 30 ° C. are output when the temperature is less than or equal to 30 ° C.).

During this period, the temperature of the drying heater 15 is adjusted by the value stored in the second storage means 14 of 130 ° C., so that the control means 17 constantly outputs the temperature sensor 16 and the control means 17.
The output of the comparison means 18 for comparing the output (130 ° C.) is input, the drive of the drying heater 15 is stopped if the signal is above, and the drying heater 15 is driven if the signal is less than that.

This operation is continuously performed during the time measured by the third timer 13, and when 60 seconds of the time measured has elapsed, the time measuring end signal is output to the control means 17, and the control means 17 receiving this signal outputs the second signal. The stored value (123.5 ° C., 63 seconds) is input from the second storage means 14 (time B in FIG. 6).

The control means 17 controls the input control temperature value (1
23.5 ° C.) is output to the comparison means 18 and the drying heater 15
To drive. The temperature sensor 16 detects the temperature of the drying heater 15 and constantly outputs it to the comparing means 18. Comparison means 1
The operation of 8 is as follows. The comparison means 18 compares the stored value (123.5 ° C.) sent from the control means 17, and stores an unreached signal if the output from the temperature sensor 16 is not the stored value sent from the control means 17. If it is a value, an arrival signal is output to the control means 7.

Among them, the temperature of the drying heater 15 is 12
If the temperature reaches 3.5 ° C. (time C in FIG. 6), the output is output to the comparison means 18, and the comparison means 18 compares the output of the temperature sensor 16 with the output (stored value) of the control means 17,
Since it is 123.5 ° C., the arrival signal is output to the control means 17. Receiving this, the control means 17 operates the second storage means 1
The stored value of the predetermined time input 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 less than the stored value (123.5 ° 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 always outputs the temperature sensor 16 and the output from the control means 17 (123.5 ° C.). The output of the comparison means 18 is compared, and if the above signal is input, the driving of the drying heater 15 is stopped.
To drive.

This operation is continuously performed during the time measured by the third timer 13, and when 63 seconds of the time measured has elapsed, the third timer 13 outputs a time end signal to the control means 17,
Receiving this, the control means 17 causes the third stored value (143
C., 54 seconds) from the second storage means 14. (Fig. 6
By performing the above operation continuously by each means, the temperature control of the drying heater 15 is performed 13 times after reaching 130 ° C. as shown in FIG.
0 ° C for 60 seconds, 123.5 ° C for 63 seconds, 143 ° C for 54 seconds
Second, 117 ° C. for 66 seconds, 130 ° C. for 60 seconds, 136.5
The temperature and the time for maintaining this temperature are changed such that the temperature is 57 seconds.

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

On the other hand, if the control temperature is intentionally varied with respect to the predetermined control temperature as in this case, heat is easily transferred to the inside of the garbage 12, and as a result, the time until drying is shortened. Because you can.

[0029]

As is apparent from the above embodiments, according to the first means of the present invention, the temperature of the drying heater can be set to the limit of the prohibition temperature, and high heat is sent to the garbage. Therefore, the drying time can be shortened.

According to the second means, by intentionally varying the control temperature of the drying heater, heat can be quickly transferred to the inside of the garbage and the drying time can be shortened.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing the operation of the same garbage drying processing machine.

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

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

FIG. 5 is a block diagram of a circuit of a food waste 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 garbage drying machine.

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

[Explanation 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

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiichi Ueno 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (2)

[Claims] 1. A drying heater for drying raw garbage, a temperature sensor for detecting the temperature of the drying heater, a storage means for storing a temperature for stopping the operation of the drying heater and a control temperature of the drying heater, and a drying device. When the temperature detected by the temperature sensor reaches a temperature at which the operation of the drying heater of the storage means is stopped, the operation of the drying heater is stopped and the time measured by the first timer is started. Control means for determining the stop time of the drying heater by
A second timer that counts the stop time of the drying heater determined by the control control means, and the control means controls the second time.
When the timer finishes counting, activate the drying heater,
A food waste drying machine configured to control the operation of a drying heater by the control temperature of a storage means. 2. A drying heater for drying raw garbage, a temperature sensor for detecting the temperature of the drying heater, a second storage means for storing a plurality of control temperatures and operating times of the drying heater, and a second storage means. For measuring the operating time of the dry heater
The output of the timer, the comparing means for comparing the control temperature of the drying heater of the second storage means and the temperature detected by the temperature sensor, and the output of the third timer and the comparing means are input to determine the operating time and operating temperature of the drying heater. An apparatus for drying food waste, comprising control means for controlling, wherein the control means controls the operation of the drying heater at a plurality of control temperatures and operating times of the second storage means.