JPH09299914A - Decomposing treatment device for kitchen garbage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decomposing treatment device for kitchen garbage which shortens a decomposition time of the garage by controlling an agitation blade based on a difference in temps. of upper and lower part of a decomposing treating chamber. SOLUTION: The device is partitioned into both the decomposing treating chambers 1 provided with the agitation blade 11 and a heat control chamber 2 provided with a heating device 21, a driving motor 22 and a control device 25, etc., and an upper temp. detector 14 and a lower temp. detector 15 are respectively provided at the upper and lower parts of the decomposing treating chamber, and the agitation blade is controlled with the difference between the upper part temp. and the lower part temp. in the chamber and unevenness of the temp. on the places is removed, and ON/OFF control is performed with the difference between an average value of the upper part and lower part temps. and a reference temp. (e.g. 60 deg.C), and the heating device is controlled with a duty factor decoded with the average value of the upper part and lower temps. by using the outdoor temp. as a parameter. Thus, since the temp, in the decomposing treating chamber is kept at the reference temp., the decomposition efficiency is enhanced and the decomposition time of the garbage can be shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for decomposing raw garbage, and in particular, it keeps the temperature in the decomposing treatment tank at a reference temperature or higher, and eliminates temperature unevenness depending on the location to improve the decomposing efficiency to decompose the garbage. For those that have reduced time.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 5, an apparatus for decomposing food waste has a vessel divided into upper and lower parts, and an agitation blade for agitating a culture material containing food waste and decomposing bacteria in an upper decomposition treatment tank 1. 11 and a temperature detector 19, and in the lower heating control chamber 2, a heating device 21 for heating the decomposition treatment tank 1, a stirring motor 22 for driving the stirring blade 11, an outside air temperature detector 23, and control for controlling each part. The device 25 is arranged. In order to decompose raw garbage, after putting a culture material containing raw garbage and decomposing bacteria into the decomposition treatment tank 1 and stirring, the on-off control of the heat generating device 21 is performed by the difference between the outside air temperature and the temperature inside the decomposition treatment tank. Therefore, the temperature of the decomposition treatment tank 1 is kept at the reference temperature. However, in this configuration, since the temperature detector 19 provided at a predetermined position in the decomposition treatment tank 1 determines the energization of the heat generating device,
If the upper temperature in the decomposition tank rises and the temperature of the temperature detector reaches the reference temperature, the lower temperature will not turn on, but the heating device will be turned off and power will not be turned on. The decomposition of dust was delayed and it took a long time to completely decompose it.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems, and controls the stirring blade by the temperature difference between the upper and lower sides of the decomposition treatment tank to reduce the decomposition time of the garbage, thereby decomposing the garbage. Is intended to provide.

[0004]

In order to solve the above-mentioned problems, the present invention provides temperature detectors at the upper and lower parts of the decomposition treatment tank, respectively, and agitates the stirring due to the difference between the upper temperature and the lower temperature of the decomposition tank. The blades are controlled so that the heating device is controlled by the difference between the average value of the upper temperature and the lower temperature and the reference temperature (for example, 60 ° C.). Further, the electrical conductivity of the heat generating device is determined by the average value of the upper temperature and the lower temperature of the decomposition treatment tank and the outside air temperature and stored in a look-up table. I tried to control it.

[0005]

With the above-described structure, in the apparatus for decomposing food waste of the present invention, temperature detectors are provided at the upper and lower parts of the decomposition treatment tank, respectively, and the temperature of the upper part and the lower temperature of the tank are controlled. The stirring blade is controlled by the difference to eliminate temperature unevenness depending on the location, and the heating device is controlled to be turned on / off by the difference between the average value of the upper temperature and the lower temperature and a reference temperature (for example, 60 ° C.). Depending on the average value of the temperature and the outside air temperature, by controlling the energization rate of the heat generating device with reference to a lookup table, the temperature inside the decomposition treatment tank was kept at a reference temperature or higher, so the decomposition efficiency was increased, It is possible to shorten the decomposition time of raw garbage.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The garbage decomposing apparatus according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic perspective view showing an embodiment of the garbage decomposing apparatus according to the present invention, and FIG.
It is a block diagram which shows the control apparatus of the garbage decomposition processing apparatus by this invention. In the figure, reference numeral 1 is a decomposition treatment tank having a lid 1a on the upper part thereof, and a plurality of stirring blades 11 are fixed to a rotating shaft 12 arranged horizontally, and a belt 13 for driving force transmission is attached to the rotating shaft 12. There is. Although the belt 13 is used for transmitting the driving force in this embodiment, the driving force may be transmitted by a gear. An upper temperature detector 1 is provided on the decomposition treatment tank 1.
4. A lower temperature detector 15 is provided at the bottom.

Reference numeral 2 denotes a heating control chamber, which is a heating device 21 composed of a resistance heating element for heating the decomposition treatment tank 1 and a stirring motor 22 for driving the stirring blade 11 via the belt 13.
, An outside air temperature detector 23, an average value and a difference value of the detected temperature Su from the upper temperature detector 14 and the detected temperature Sd from the lower temperature detector 15, and an outside air temperature detector 23.
Based on the outside air temperature So and the reference temperature Ss (60 ° C.), the lookup table 24 is referred to, and the control device 25 that controls the heat generating device 21, the drive motor 22, and the like is arranged.

As shown in the block diagram of FIG. 2, the control device 25 has a heating device driving part 21a for driving the heating device 21 and a motor driving part 22 for driving the stirring motor 22.
a, the average value and the difference value of the detected temperature Su from the upper temperature detector 14 and the detected temperature Sd from the lower temperature detector 15, and the outside air temperature So from the outside air temperature detector 23,
The lookup table 24 is referred to on the basis of the reference temperature Ss (60 ° C.), and the control unit 25a controls each unit.

Next, the operation of the above configuration will be described. The operation flow of the apparatus for decomposing food waste of the present invention shown in FIG. 3 and the look-up table in FIG. 4 in which the outside air temperature is used as a parameter and the energization rate of the heating apparatus with respect to the temperature in the decomposition treatment tank is stored will be described. First, the lid 1a is opened, raw garbage to be decomposed and a culture material containing a required amount of degrading bacteria are put into the decomposition treatment tank 1, the lid 1a is closed, and the power is turned on. The stirring blade is rotated for a certain time (S1) to mix the culture material with the garbage. Next, the temperature from each temperature detector (upper temperature detector 14, lower temperature detector 15, outside air temperature detector 23) is detected (S2). The average value Sh of the temperature Su detected by the upper temperature detector 14 and the temperature Sd detected by the lower temperature detector 15 is used as a reference temperature (60 ° C.).
(S3) and the average value Sh is the reference temperature (60 ° C)
If it is lower, the outside air temperature So at that time is detected (S4),
Referring to the look-up table shown in FIG. 4, the outside air temperature So (= 10 ° C.) and the indoor temperature average value Sh (= 20)
(C), the duty factor Dc (= 75%) of the heat generating device 21 is determined (S5), and the power source of the heat generating device 21 is turned on (S6) to operate at that duty factor (Dc).

Further, as a result of detecting the temperature from each temperature detector (upper temperature detector 14, lower temperature detector 15, outside air temperature detector 23) in the above (S2), the upper temperature detector 1
4 and the detected temperature Sd of the lower temperature detector 15 are calculated, and the difference value and a predetermined reference temperature difference (5
(° C) is compared (S7), and the difference value is a predetermined reference temperature difference (5
When the temperature exceeds ℃), the stirring blade is rotated for a certain time.

The average value S of the temperature Su detected by the upper temperature detector 14 and the temperature Sd detected by the lower temperature detector 15
h is compared with the reference temperature (60 ° C.) (S3), and the average value S
When h is higher than the reference temperature (60 ° C.), the heating device 2
The power source of No. 1 is turned off (S8). Although the reference temperature is 60 ° C. and the reference temperature difference is 5 ° C. in this embodiment, the reference temperature is 60 ° C. to 70 ° C. and the reference temperature difference is 5 ° C. to 1 ° C.
When set to 0 ° C, garbage can be decomposed efficiently.

[0012]

As described above, according to the apparatus for decomposing garbage according to the present invention, temperature detectors are provided at the upper and lower parts of the decomposition treatment tank, respectively, and the temperature difference between the upper temperature and the lower temperature of the tank causes The stirring blade is controlled to eliminate temperature unevenness depending on the location, and the average value of the upper temperature and the lower temperature and the reference temperature (for example, 7
The temperature inside the decomposition treatment tank is controlled by controlling the heating device on / off by the difference between the temperature of the decomposition treatment tank and the heating device by controlling the heating device at an energization rate determined by the average value of the upper temperature and the lower temperature using the outside air temperature as a parameter. Since the temperature is kept above the reference temperature, the decomposition efficiency can be increased and the decomposition time of the garbage can be shortened.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of an apparatus for decomposing food waste according to the present invention.

FIG. 2 is a block diagram showing a control device of a food waste decomposition processing apparatus according to the present invention.

FIG. 3 is an operation flow of the garbage decomposing processing apparatus according to the present invention.

FIG. 4 is a graph of a look-up table of the apparatus for decomposing food waste according to the present invention.

FIG. 5 is a schematic perspective view showing a conventional garbage decomposing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Decomposition treatment tank 2 Heating control chamber 11 Stirring blade 12 Rotating shaft 13 Belt 14 Upper temperature detector 15 Lower temperature detector 21 Heating device 21a Heating device driving part 22 Stirring motor 22a Motor driving part 23 Outside air temperature detector 24 Look-up table 25 control device 25a control unit

Claims (6)

[Claims] 1. A decomposition treatment tank having an upper part of a vessel equipped with a stirring blade and a temperature detector, and a lower part thereof divided into a heating control chamber having a heating device, a stirring drive part, an outside air temperature detector and a control device. Then, the culture material containing raw garbage and degrading bacteria is added and stirred, the temperature inside the decomposition treatment tank and the outside air temperature are detected, and control is performed to keep the inside of the decomposition treatment tank above a predetermined temperature to remove the garbage. In the garbage decomposing apparatus for decomposing, the temperature detector is divided into upper and lower parts of the decomposing tank, the stirring blade is controlled by the difference between the upper temperature and the lower temperature, and the temperature of the upper and lower temperatures is controlled. An apparatus for decomposing garbage according to claim 1, wherein the heating device is drive-controlled at a predetermined energization rate based on a difference between the average value and a predetermined reference temperature. 2. The electric conductivity of the heat generating device is determined by an average value of the upper temperature and the lower temperature of the decomposition processing chamber and the outside air temperature, and stored in a lookup table. The apparatus for decomposing food waste described in 1. 3. The food waste decomposing process according to claim 1, wherein the heating device is energized when an average value of an upper temperature and a lower temperature of the decomposition treatment tank is lower than a predetermined reference temperature. apparatus. 4. The food waste decomposition apparatus according to claim 1, wherein the reference temperature is 60 ° C. to 70 ° C. 5. The garbage according to claim 1, wherein the stirring blade is operated for a certain period of time when the difference between the upper temperature and the lower temperature of the decomposition treatment tank is higher than a predetermined reference temperature difference. Decomposition equipment. 6. The food waste decomposition apparatus according to claim 1, wherein the reference temperature difference is 5 ° C. to 10 ° C.