JP3342334B2 - Garbage processing equipment - 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 disposal apparatus for heating and drying garbage mixed with garbage, resin packs, grains and the like discharged from kitchens such as ordinary households and restaurants.

[0002]

2. Description of the Related Art Conventionally, in this type of apparatus, kitchen garbage stored in a storage tank is heated and dried by heating means while being stirred by stirring means. In this apparatus, the stirring mode is switched to constantly stir the garbage efficiently, or the operation of the heating means is stopped, in accordance with the decrease in the moisture content of the garbage as the heating and drying process proceeds. The heat drying process is terminated.
For example, in Japanese Patent Application Laid-Open No. 8-49977, during the heating and drying treatment, the temperature of the heating means is kept at a predetermined temperature, the moisture content of the kitchen waste is reduced, the surface of the kitchen waste is dried, and the same moisture is evaporated. A device that focuses on the phenomenon that the internal temperature of the storage tank increases when the efficiency decreases, and that switches the stirring mode in accordance with the increase. In addition, for example,
In the device disclosed in Japanese Patent Publication No.
The operation of the heating means is started when the internal temperature of the storage tank falls to a predetermined lower limit temperature, and the operation is stopped when the internal temperature rises to a predetermined upper limit temperature by the same operation. The garbage is heated while keeping the temperature within a predetermined range. Then, in this case, paying attention to the phenomenon that the internal temperature tends to increase and decrease when the water content of the kitchen waste decreases, the stop time from when the operation of the heating means is stopped to when it is restarted is equal to or less than a predetermined time. , It is determined that the evaporation of the water content of the kitchen waste has been completed, and the heating and drying process is terminated.

[0003]

However, in the former conventional apparatus described above, if the temperature of the outside air changes, the internal temperature of the storage tank also changes, so that the stirring mode cannot be switched properly. There was a problem. On the other hand, in the latter conventional apparatus, the water content of the garbage is constantly decreasing during the heating and drying process, that is, steam is continuously generated from the garbage even when the operation of the heating means is stopped. Therefore, the phenomenon that the amount of heat is consumed as the heat of vaporization and the internal temperature continues to decrease is not considered. When the evaporation of the water content of the kitchen garbage approaches completion with the progress of the heating and drying process, the amount of heat consumed as heat of vaporization for the generation of water vapor decreases. And the stop time from the stop of the operation of the heating means to the restart thereof is rather long. Therefore, in the same apparatus, it is not possible to accurately determine the completion of the evaporation of the water content of the garbage, and it is not possible to end the heating and drying process accurately.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to address the above problems, and has as its object to accurately switch the stirring mode of the stirring means during the heating and drying process so as to constantly stir the garbage efficiently. It is an object of the present invention to provide a garbage processing apparatus that improves the efficiency of a heat drying process. Another object of the present invention is to provide a garbage disposal apparatus for appropriately terminating the heating and drying process when the evaporation of the water content of the garbage is completed.

[0005] To achieve the above object, the first aspect of the present invention is as follows.
The features of the configuration are: a heating means for heating the garbage with a heating medium when energized; a temperature sensor for detecting the temperature of the heating medium; and a heating means when the temperature detected by the temperature sensor drops to a predetermined lower limit temperature. And heating control means for canceling the energization when the detected temperature rises to a predetermined upper limit temperature, and the stirring means is housed in the housing tank under the control of the stirring control means. In a garbage processing apparatus that stirs garbage while switching the stirring mode in a time-series manner, in response to a decrease in the duty ratio of the heating means (for example,
When the total energization time of the heating means within a predetermined time becomes equal to or less than a predetermined ratio with respect to the predetermined time), a first switching means for controlling the stirring control means to switch the mode of stirring the garbage by the stirring means is provided. It is in.

[0006] In the first structural feature of the present invention configured as described above, the heating means is controlled by the heating control means while the stirring means is stirring the garbage under the control of the stirring control means. The garbage is heated via the heating medium while repeating energization and de-energization under the control, and the garbage is heated and dried. During the heating and drying process, when the surface of the kitchen garbage dries and the evaporation efficiency of the water content decreases, the generation of water vapor in the amount of heat supplied to the kitchen garbage through the heating medium during energization of the heating means. The proportion consumed as heat of vaporization is reduced. On the other hand, the ratio of the amount of heat used for raising the temperature of the surface of the garbage increases, and the temperature of the surface of the garbage increases quickly. As a result, the temperature of the heating medium also rises quickly to the upper limit temperature, so that the time from the start of energization of the heating means to the termination of the energization is shortened. In addition, when the heating unit is not energized, the amount of heat consumed as heat of vaporization for generating steam decreases, and the speed at which the temperature of the surface of the garbage decreases decreases. As a result, the speed at which the temperature of the heating medium decreases also decreases, so that the time from when the energization of the heating means is released to when the energization is started again becomes longer. That is, during the heating and drying process of the kitchen garbage, the duty ratio of the heating unit decreases as time elapses. Then, the first switching means controls the stirring means to switch the stirring mode of the stirring means in accordance with the decrease in the current supply rate. Therefore, according to this, the stirring mode of the stirring means is automatically switched when the surface of the garbage dries during the heat drying process and the evaporation efficiency of the water content is reduced, so that the garbage is always efficiently stirred. As a result, the efficiency of the heat drying process is improved.

A second structural feature of the present invention is that, instead of the first switching means, the stirring control means is controlled in accordance with the total energizing time of the heating means, and the total energizing time is set to a predetermined time. That is, the second switching means for switching the stirring mode of the stirring means when it has been reached is provided. According to this, when the total amount of heat supplied to the garbage from the heating means to heat and dry the garbage becomes a predetermined amount, the stirring mode of the stirring means is automatically switched, so that the garbage is always efficiently stirred. As a result, the efficiency of the heat drying process is improved.

A third structural feature of the present invention is that, in addition to the first or second structural feature, the stirring means starts stirring the garbage in any one of the stirring modes for a predetermined time. The third switching means for controlling the stirring control means so as to switch the stirring mode of the stirring means after the lapse has been provided. According to this, since the stirring mode by the stirring means is reliably switched, it is avoided that the stirring means wastefully stirs the garbage in the same stirring mode, and a decrease in the efficiency of the heating and drying process is avoided.

A fourth structural feature of the present invention is that a heating means, a temperature sensor and a heating control means similar to those described above are provided, and the stirring means is housed in a housing tank under the control of the stirring control means. In a garbage processing apparatus that stirs garbage, in response to a decrease in the energization rate of the heating means (for example, when the total energization time of the heating means falls within a predetermined ratio with respect to the predetermined time within a predetermined time), the heating control means The first stopping means for stopping the control of the heating means by the above-mentioned method and maintaining the heating means in the non-energized state is provided.

[0010] In the fourth structural feature of the present invention configured as described above, when the evaporation of the water content of the garbage is completed during the heating and drying processing, the above-described evaporation efficiency of the water content of the garbage decreases. Similarly to the case described above, the electric conduction rate of the heating means decreases.
Then, in response to the decreased power supply rate, the first stopping means stops the control of the heating means by the heating control means and maintains the heating means in a non-energized state. Therefore, according to this, when the evaporation of the water content of the garbage is completed, the heating and drying process can be properly terminated.

A fifth structural feature of the present invention is that the control of the heating means by the heating control means is stopped when the total energizing time of the heating means reaches a predetermined time, instead of the first stopping means. Thus, the second stopping means for maintaining the heating means in the non-energized state is provided. According to this, when the total amount of heat supplied to the garbage from the heating unit to heat and dry the garbage reaches a predetermined amount, the heating unit is automatically maintained in a non-energized state, so that the heating and drying process is properly performed. Can be terminated.

A sixth structural feature of the present invention is characterized in that, in addition to the fourth or fifth structural feature, a predetermined time has elapsed after the heating control means started controlling the heating means. There is provided a third stopping means for stopping the control of the heating means by the heating control means and maintaining the heating means in a non-energized state. According to this, since the heating and drying process is reliably terminated, the heating and drying process is prevented from continuing uselessly.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show the external appearance of the kitchen waste treatment apparatus according to the embodiment, and FIGS. 3 and 4 show the internal configuration of the kitchen waste treatment apparatus with the exterior panel removed.
This garbage processing apparatus includes a storage tub 10, a stirring member 20, a driving device 30, a hot air circulating device 40, an exhaust device 50, and a control box 60, and heats garbage (not shown) put into the storage tub 10. And it heats and dries by stirring.

The storage tank 10 includes a tank 11 for storing kitchen waste.
It has. The tank 11 has a bottom formed in a semi-cylindrical shape, and is integrally assembled to the frame 90. A tank heater 12 is mounted outside the bottom of the tank 11. The tank heater 12 is operated by energization to heat the bottom of the tank 11 and heat the garbage stored in the tank 11 using the bottom of the tank 11 as a heating medium. Further, a tank temperature sensor 13 for detecting the temperature of the bottom of the tank 11 is also attached to the bottom of the tank 11.

At the top of the front of the tank 11, the tank 11
An input port 11a for inputting kitchen waste is provided therein, and the input port 11a is opened and closed so that the input port 11a can be opened and closed.
Has been assembled. The loading lid 14 has a bar handle 14a for opening and closing the lid 14 on the outer side of the upper end, and a lock mechanism (only the keyhole 14b is shown in FIG. 1) on the back surface. The lock mechanism permits or inhibits the opening of the insertion slot 11a by a key inserted into the keyhole 14b. In addition, on the inside of the charging mouth 14,
A chute 14c for guiding the garbage to be introduced into the tank 11 is attached. The tank 11 is also provided with an inlet state detection switch 15. The input port state detection switch 15 is turned on when the input port 11a is closed by the input port lid 14, and the input port 1 is turned on.
It is off when 1a is open.

In the middle of the front of the tank 11, the tank 1
Discharge port 1 for discharging kitchen waste after heat drying from 1
1b, and an outlet cover 16 for opening and closing the outlet 11b. Discharge lid 1
6, hinges 16a at the upper end, as shown in detail in FIG.
, And is provided with pins 16b, 16b protruding outward at the left and right ends at the lower end, respectively. Each pin 16b, 1
6b slidably penetrate L-shaped long holes 16c1 and 16c1 provided in the cam plates 16c and 16c, respectively, along their inner peripheral surfaces.
c and 16c are fixed to a shaft 16d extending in the left-right direction. The shaft 16d has an opening at the bottom, and the tank 1
Cover 17 mounted on 1 (illustrated in FIGS. 1, 2 and 4)
It is rotatably mounted around a coaxial 16d at an appropriate place inside, and is rotated by a discharge port cover motor 16e provided in the cover 17. Accordingly, the discharge lid 16 is swung by the rotation of the discharge lid motor 16e via the pair of left and right cam plates 16c, 16c, and the discharge port 11b is closed as shown in FIG. 5A and shown in FIG. 5B. Switch to the open state. Further, inside the cover 17, a discharge port closed state detection sensor 16 f and a discharge port open state detection sensor 16 f
g is also provided. Each of the sensors 16f and 16g is constituted by a reed switch, and detects the proximity of the protruding piece 16h fixed to the shaft 16d and rotating together with the cam plates 16c and 16c, thereby changing the closed state and the open state of the discharge port 13 respectively. To detect.

Below the outlet 11b, there is provided a container 18 for containing kitchen waste after the heating and drying treatment. The container 18 has an opening at an upper end and is tiltably attached to a frame 90 at a lower end. When the container 18 is in a state of a solid line in FIG. 11b1. Note that a commercially available garbage bag (not shown) is detachably attached to the container 18 before the kitchen waste is introduced. Further, the container set switch 19 is also attached to the frame 90. The container set switch 19 is turned on when the container 18 is in the state indicated by the solid line in FIG. 4 and the kitchen waste can be introduced from the discharge port 11b, and the container 18 is in the state indicated by the two-dot chain line in FIG. It is turned off when the kitchen waste cannot be introduced from the discharge port 11b.

The stirring member 20 has a rotating shaft 21 extending in the axial direction of the tank 11. The rotating shaft 21 is rotatably mounted on the tank 11 so as to be rotatable around the axis and penetrates the tank 11, and is rotationally driven by the driving device 30. Six connecting rods 22 alternately extending radially in opposite directions in the axial direction of the coaxial 21 are fixed to the rotating shaft 21 at their respective inner ends. Each outer end of each connecting rod 22 has a blade 23 formed in a horizontally long plate shape.
However, its tip side is in the positive rotation direction of the stirring member 20 with respect to the extension of the connecting rod 22 (counterclockwise direction in FIG. 4).
It is fixed at an angle of about 45 degrees to the side.

A rotary plate 24 that rotates together with the rotary shaft 21 is attached to the right end of the rotary shaft 21 protruding outside the tank 11. A large number of radially extending protrusions (not shown) are provided at equal intervals in the circumferential direction on the outer periphery of the end of the rotating plate 24. In addition, a pair of rotation position sensors 25, 25 are provided near the rotating plate 24 and at upper and lower positions. Each rotation position sensor 25 is connected to the rotation plate 2
The rotation position of the stirring member 20 is detected by sensing the proximity of the protrusion 4.

The driving device 30 includes a stirring motor 31 that can be rotated forward and backward. The stirring motor 31 is mounted on the frame 90, is connected to the rotating shaft 21 of the stirring member 20 via a sprocket 32, a chain 33, and a sprocket 34 so as to be capable of transmitting power. Drive rotationally.

The hot air circulation device 40 circulates the inside air of the tank 11 as hot air (see wide arrows in FIGS. 3 and 4), and heats the garbage in the tank 11 using the hot air as a heating medium. The hot air circulating device 40 includes the tank 1
1 has a reflux duct 41 provided on the rear side of the upper end. The reflux duct 41 has an inflow port 41 long in the left-right direction at the upper part of the front surface.
a, and has an outlet 41b long in the left-right direction at the rear of the lower surface, and accommodates a hot-air fan 42 inside.
The hot air fan 42 is rotatably driven by a hot air fan motor 43 installed outside the tank 11, and introduces the inside air above the tank 11 from the inflow port 41 a into the reflux duct 41, and assembles it at the lower right front part of the reflux duct 41. The outside air of the storage tank 10 is introduced from the intake duct 44 into the circulation duct 41, and the introduced air is derived from the outlet 41b. A guide plate 45 that is long in the left-right direction is mounted in front of the lower surface of the return duct 41. The guide plate 45 guides the air led downward from the outlet 41b of the reflux duct 41 to the garbage in the tank 11, and also allows the steam generated from the garbage and flowing upward to flow through the inlet 41a of the reflux duct 41 and It leads to the exhaust device 50. A hot air heater 4 which is activated by electricity and heats the air to generate hot air is provided in an air passage formed between the induction plate 45 and the back wall of the tank 11 and led to the kitchen waste.
6 and a hot air temperature sensor 47 for detecting the temperature of the hot air.

The exhaust device 50 discharges part of the inside air of the tank 11 into the atmosphere, and has an exhaust duct 51 provided above the tank 11 and communicated with the inside of the tank 11. The exhaust duct 51 houses an exhaust fan (not shown) that is driven to rotate by an exhaust fan motor 52 mounted outside the duct 51. The exhaust fan discharges the inside air of the tank 11 to the atmosphere via a deodorizing device 53 and a discharge duct 54. The deodorizing device 53 is for deodorizing the inside air of the tank 11 sent out by the exhaust fan and passing it through. The catalyst 53a oxidizes and decomposes gas and water vapor generated from kitchen waste contained in the passing inside air, and the catalyst 53a. A catalyst heater 53b for heating the air passing through the catalyst 53a upstream of the catalyst 53a is housed. Further, a catalyst temperature sensor 53c is provided between the catalyst heater 53b and the catalyst 53a. The catalyst temperature sensor 52 detects the temperature of the air heated by the catalyst heater 53b.

The control box 60 is provided with a panel 61 for the user to operate. Panel 61
A start switch 61a, a discharge switch 61b, a drying lamp 61c, and a discharge lamp 61d are provided. The start switch 61a is a switch for instructing a heating and drying process of kitchen waste. The discharge switch 61b is a switch for instructing discharge of kitchen waste. Heating drying lamp 6
Reference numeral 1c denotes a lamp that is turned on during the heating and drying process of the garbage. The discharge lamp 61d is a lamp that is turned on while the kitchen waste is being discharged.

In the control box 60, as shown in FIG. 6, each of the heaters 12, 46, 53b and the sensors 13, 1
6f, 16g, 25, 25, 47, 53c, switch 1
5, 19, motors 16e, 31, 43, 52 and an electric control circuit 70 connected to the panel 61 are provided.
The electric control circuit 70 is constituted by a microcomputer, executes programs corresponding to the flowcharts shown in FIGS. 7 to 17, and controls the operations of the heaters 12, 46, 53 b and the motors 16 e, 31, 43, 52. Further, the electric control circuit 70 includes first to sixth timers 71 to 76. The first timer 71 performs a heating and drying process described below,
This is for measuring the execution time of the cooling process and the discharging process. The second timer 72 is for measuring the execution time of each stirring mode described later. The third to sixth timers 73 to 76 each measure time and generate a timer interrupt signal every predetermined short time.
0 is caused to execute the heating / drying processing timer interrupt program of FIG. 13, the first and second switching timer interrupt programs of FIGS. 15 and 16, and the end timer interrupt program of FIG.

Next, the operation of the embodiment configured as described above will be described with reference to flowcharts of FIGS. 7 to 17 and time charts of FIGS.

A. Overview When a power switch (not shown) is turned on, the electric control circuit 70 starts execution of the main program in step 100 of FIG. 7, and first executes an initialization process of step 101. This initialization processing is performed by a flag FLG1 described later.
FLG3, the timer count values TM1 to TM3, and the count values CNT1 and CNT2 are each set to the value “0”. Then, the circulation process including steps 102 to 106 is repeatedly executed, and the operation of the start switch 61a or the discharge switch 61b is performed on the condition that the inlet 11a is closed and the inlet state detection switch 15 is on. Keep waiting.

During the circulating process, after kitchen refuse is charged into the tank 11 from the input port 11a, the input port 11a is closed, the input port state detection switch 15 is turned on, and the start switch 61a is turned on. Then, based on the determination of “YES” in step 104, the electric control circuit 70 executes the processing of steps 110 to 148 in FIGS. 8 to 10 to heat and dry the garbage in the tank 11. . Then, after the heating and drying process, a process including steps 150 to 156 in FIG. 11 is executed to cool the kitchen waste after the heating and drying process. Furthermore, after this cooling process,
If the container 18 is in a state where kitchen waste can be introduced from the discharge port 21b and the container set switch 19 is in the ON state,
Based on the determination of “YES” in step 158, the processing consisting of steps 160 to 170 of FIG. 12 is executed, and the garbage after the cooling processing is discharged into the container 18.

If the discharge switch 61b is turned on during the circulation processing in steps 102 to 106, the electric control circuit 70 sets the container 18 to the discharge port 11b based on the determination of "YES" in step 106. The program proceeds to step 160 and subsequent steps in FIG. 12 on condition that the container set switch 19 is in an on-state in which the kitchen waste can be introduced from the kitchen, and the kitchen waste in the tank 11 is directly passed without the heating and drying processing. Start the discharging process.

B. Heat-drying process Next, the heat-drying process will be described in detail. When the heating and drying processing of the kitchen waste in the tank 11 is started, the electric control circuit 70 determines in step 110 in FIG. 8 that the discharge port lid motor 16e is used until the discharge port closed state detection sensor 16f detects the closed state of the discharge port 11b. To operate the discharge port 11b
Is closed. In step 112, the tank heater 12, the stirring motor 31, the hot air fan motor 43, the hot air heater 46, the exhaust fan motor 52, and the catalyst heater 5
3b is started, and the heating / drying processing lamp 61c is turned on. Thereby, the garbage in the tank 11 starts to be heated by the bottom of the tank 11 and the hot air, and starts to be stirred by the stirring member 20, and
A part of the inside air starts to be released into the atmosphere via the deodorizing device 53. In step 114, the flag FLG1 is set to a value “1”. The flag FLG1 indicates that the tank heater 12 is energized at a value of “1”,
A value “0” indicates that the heater 12 is not energized. In step 116, the third timer 7
3 is allowed to accept an interrupt signal. As a result, thereafter, during the execution of the main program, the electric control circuit 70 interrupts and executes a later-described heating / drying processing timer interrupt program of FIG. 13 every predetermined short time. In step 118, the first timer 71 is reset and started to start timing.

Here, the above-mentioned heating / drying processing timer interrupt program will be described. The timer interrupt program controls the tank heater 12, the hot air heater 46, and the catalyst heater 53b during the heating and drying processing of the garbage in the tank 11. Electric control circuit 7
0 is set at step 200 in FIG.
Starts the execution of the timer interrupt program at
After executing the processing of steps 202 to 206, the execution of the program is terminated in step 208.

In step 202, a hot air heater control process is executed. This hot air heater control process is performed based on the detection of the hot air temperature sensor 47, when the temperature of the hot air sent to the garbage in the tank 11 rises and reaches a predetermined upper limit temperature (for example, 130 ° C.). This is a process of stopping the operation, and restarting the operation when the temperature of the hot air falls to or below a predetermined lower limit temperature (for example, 127 ° C.) after the stop. Thereby, during the repetitive execution of the timer interrupt program, the temperature of the hot air sent to the garbage in the tank 11 is maintained between the predetermined upper limit temperature and the lower limit temperature, and the garbage is heated by the hot air. However, the upper limit temperature is kept high (for example, 150 ° C.) for a predetermined time (for example, one hour) after the start of the heating and drying treatment.
2), the temperature of the hot air is raised to the high upper limit temperature. Thus, the process of raising the temperature of the garbage itself before evaporating the moisture of the garbage is completed in a short time.

In step 204, a catalyst heater control process is executed. This catalyst heater control process stops the operation of the catalyst heater 53b when the temperature detected by the catalyst temperature sensor 53c rises and reaches a predetermined upper limit temperature (for example, 600 ° C.). This is a process for restarting the same operation when the temperature falls to a temperature (for example, 400 ° C.) or lower. As a result, during the repetitive execution of the timer interrupt program, the temperature at which the inside air of the tank 11 discharged into the atmosphere passes through the catalyst 53a is maintained between the predetermined upper limit temperature and the lower limit temperature. The deodorizing efficiency of 53a is stabilized.

Each control in each of the steps 202 and 204 is executed at any time during the repetitive execution of the heating / drying timer interrupt program without stopping the progress of the program.

In step 206, a tank heater control process shown in detail in FIG. 14 is executed. After the electric control circuit 70 starts executing the same process in step 300,
In step 302, it is determined whether or not the flag FLG1 is a value “1”. First, steps 112 and 1 in FIG.
Since the energization of the tank heater 12 has been started and the flag FLG1 has been set to the value "1" by the process of 14, the electric control circuit 70 determines "YES" at this time and advances the program to step 304 and subsequent steps. . Step 3
In 04, the temperature detected by the tank temperature sensor 13 is set to a preset upper limit temperature (for example, 130 ° C.).
It is determined whether or not this is the case. If the detected temperature has not risen to the upper limit temperature at this time, the program proceeds to step 316 based on the determination of “NO”,
This tank heater control processing is temporarily ended.

During the repetition of the processing of steps 300 to 304 and 316, the tank heater 12 continues to be energized to keep heating the bottom of the tank 11, and the temperature of the bottom of the tank 11 keeps increasing. And the tank 11
When the tank temperature sensor 13 detects that the temperature at the bottom of the tank has risen to the upper limit temperature, the electric control circuit 70 releases the energization in step 306 based on the determination of “YES” in step 304. The operation of the heater 12 is stopped, and the flag FLG1 is set at step 308.
Is set to the value "0", and this tank heater control processing is temporarily ended in step 316.

By setting the flag FLG1,
When the tank heater control process is executed, the electric control circuit 70 determines “NO” in step 302 and advances the program to step 310 and subsequent steps. Step 310
In, it is determined whether or not the temperature detected by the tank temperature sensor 13 is equal to or lower than a preset lower limit temperature (for example, 127 ° C.). At this time, if the detected temperature has not dropped to the lower limit temperature, the program proceeds to step 316 based on the determination of “NO”, and
This tank heater control processing is temporarily ended.

Steps 300, 302, 310, 3
During the repetition of the processing of step 16, the tank heater 12 continues to be in the non-energized state, and the bottom of the tank 11 keeps lowering its temperature, for example, because the heat in the tank 11 is taken away by the garbage in the tank 11. . The tank temperature sensor 1 detects that the temperature at the bottom of the tank 11 has dropped to the lower limit temperature.
3 is detected, based on the determination of “YES” in step 310, the electric control circuit 70 starts energizing the tank heater 12 again in step 312, and
In step 314, the flag FLG1 is set to a value "1", and in step 316, the tank heater control process is temporarily terminated.

When the flag FLG1 is set, the electric control circuit 70 determines "YES" in step 302 when the tank heater control processing is next executed, and proceeds to step 304 and subsequent steps again. Is repeated. As a result, during the repetitive execution of the heating / drying processing timer interrupt program, the temperature of the bottom of the tank 11 is maintained between the predetermined upper limit temperature and the lower limit temperature, and the garbage in the tank 11 is heated.

On the other hand, in the main program, after execution of the processing of step 118 in FIG. 8, the processing consisting of steps 119 to 142 in FIGS. The processing consisting of steps 119 to 142 is performed by the driving device 30
Is controlled to change the stirring mode of the stirring member 20 in a time-series manner, so that the garbage in the tank 11 is stirred in different stirring modes as time elapses. Hereinafter, each mode will be described in detail.

B-1. Continuous stirring mode The electric control circuit 70 includes the stirring member 20 and the driving device 30.
First, the continuous stirring mode is executed. In this case, the electric control circuit 70 resets the second timer 72 in step 119 and starts time counting.
The circulation processing of steps 20 and 122 is repeatedly executed.

In step 120, a continuous stirring process is performed. This continuous stirring process is performed for a predetermined time (for example,
This is a process in which the stirring motor 31 is continuously operated while switching its direction every 30 seconds), and the stirring member 20 is continuously rotated. Thereby, the garbage to be heated and dried is crushed in advance and homogenized in the entire tank 11, so that the efficiency of the heating and drying processing is improved. Each control in the continuous stirring process is executed at any time during the circulation process in steps 120 and 122 without stopping the progress of the program.

In step 122, it is determined whether or not the time counted by the second timer 72 reset and started in step 119 has reached a first predetermined time T1 (for example, three minutes). At this time, if the first predetermined time T1 has not elapsed from the start of the execution of the continuous stirring mode and the time of the second timer 72 has not reached the predetermined time T1, the determination of “NO” may be made. Then, the program proceeds to step 120 again.

During the circulation process, a first predetermined time T1 has elapsed since the start of the continuous stirring mode, and the second timer 72
When the time has reached the predetermined time T1, based on the determination of “YES” in step 122, the electric control circuit 70
Ends the circulation process and ends the mode. And
The program proceeds to step 124 and subsequent steps in FIG. 9 to cause the stirring member 20 and the driving device 30 to stir the garbage in the split stirring mode.

B-2. Split stirring mode In the stirring of the garbage in the split stirring mode, the electric control circuit 70 resets the second timer 72 in step 124 to start time measurement, and then proceeds to step 1
At 26, acceptance of the interrupt signal by the fourth and fifth timers 74 and 75 is permitted. As a result, thereafter, during the execution of the main program, the electric control circuit 70 interrupts the first and second switching timer interrupt programs shown in FIGS. After the processing in step 126, the electric control circuit 70 repeatedly executes the circulation processing in steps 128 to 132.

In step 128, a divided stirring process is executed. This divided stirring process controls the stirring motor 31 based on the detection of the rotation position detection sensors 25, 25,
While switching the direction every predetermined time (for example, three minutes), the stirring member 20 is rotated at a predetermined angle less than 360 degrees (for example,
45 degrees) and rotate for a predetermined time (for example, 22.5 seconds)
This is a process of repeating the operation of stopping only. Thereby, the kitchen waste containing a large amount of water in the early stage of the heating and drying treatment is excessively agitated so that the surface area becomes too small, and the efficiency of the heating and drying treatment is lowered. Stir efficiently while avoiding sticking to the inner wall. The respective controls in the divided stirring process do not stop the progress of the program, similarly to the respective controls in the continuous stirring process, and are executed at any time during the circulation process in steps 128 to 132.

In step 130, the flag FLG
It is determined whether or not 2 is a value “1”. Flag FLG2
Indicates that the kitchen waste in the tank 11 is in a state where the stirring mode should be switched at the value “1”, and is set to the value “1” by a first or second switching timer interrupt program described later. Things. And then,
If the flag FLG2 is not set to the value "1", the program is executed at step 1 based on the determination of "NO".
Proceed to 32.

In step 132, the timing of the second timer 72, which has been reset and started in step 124, is set to a second predetermined time T2 (for example, three hours).
Is determined. At this time, the second predetermined time T2 has not elapsed since the start of the execution of the divided stirring mode, and the second timer 72 measures the time T2.
If not, the program proceeds to step 128 again based on the determination of “NO”.

On the other hand, during the circulation processing, the electric control circuit 70
In response to the interrupt signal from the fourth timer 74, the first switching timer interrupt program shown in FIG. 15 is repeatedly executed every predetermined short time. The first switching timer interrupt program is executed by the driving device 30 in response to a decrease in the duty ratio of the tank heater 12.
The agitation mode is switched. Specifically, the total energization time of the tank heater 12 within a predetermined time T11 (for example, 10 minutes) set in advance is equal to the predetermined time T11.
When the time falls below a predetermined time T12 (for example, 4 minutes) which is a predetermined ratio (for example, 40%) with respect to the kitchen waste in the tank 11, the flag FLG2 is determined to be in a state where the stirring mode should be switched. Is set. Hereinafter, the details will be described.

The electric control circuit 70 starts executing the timer interrupt program at step 400, and adds a value “1” to the timer count value TM1 at step 402. The timer count value TM1 is for measuring a predetermined time T11. In step 404, it is determined whether or not the flag FLG1 is a value “1”. At this time, if the tank heater 12 is energized and the flag FLG1 is set to the value “1”, “Y
Based on the determination of "ES", the value "1" is added to the timer count value TM2 in step 406, and the program proceeds to step 408. The timer count value TM2 is for measuring the total energizing time of the tank heater 12 within the predetermined time T11. On the other hand, at this time, if the tank heater 12 is not energized and the flag FLG1 is set to the value “0”, the program is executed without executing the process of step 406 based on the determination of “NO”. Proceed to step 408.

In step 408, it is determined whether or not the timer count value TM1 added in step 402 has reached a predetermined time T11. If the timer count value TM1 has not reached the predetermined time T11 at this time, the program proceeds to step 422 to temporarily end the timer interrupt program.

By repeatedly executing the processing consisting of steps 400 to 408 and 422, the timer count value TM1
Keeps increasing by the value “1” and continues the time measurement. On the condition that the tank heater 12 is energized and the flag FLG1 is set to the value "1", the timer count value TM2 also continues to increase by the value "1". The energization time of No. 12 is also continuously measured (see FIG. 18). Then, the timer count value TM
When the time measurement of 1 has reached the predetermined time T11, the electric control circuit 70 advances the program to step 410 based on the determination of “YES” in step 408.

In step 410, it is determined whether or not the timer count value TM2 is equal to or less than a predetermined time T12. If the timer count value TM2 is larger than the predetermined time T12 at this time, the program proceeds to step 412 and thereafter based on the determination of “NO”. Step 4
At 12, the count value CNT1 is set to the value “0”. The count value CNT1 is equal to the timer count value TM2.
Is determined to be less than or equal to the predetermined time T12, and the switching of the stirring mode is performed more accurately. In step 414, both the timer count values TM1 and TM2 are reset to the value "0". Thus, the next time the timer interrupt program is executed, the two count values TM1, T
M2 starts timing again. Then, in step 422, the timer interrupt program is temporarily ended.

Thereafter, each time the timer interrupt program is executed, the above steps 400 to 414, 42
2 are repeatedly executed. As a result, FIG.
As shown in FIG. 8, the timer count value TM1 continuously counts time and is reset every predetermined time T11. The timer count value TM2 keeps counting only while the tank heater 12 is energized. TM
1 is reset each time the predetermined time T11 is measured. In this case, the timer count value TM2 at the time when the timer count value TM1 has counted the predetermined time T11 is:
This is the total energizing time of the tank heater 12 within the predetermined time T11. The tank heater 12 within a predetermined time T11 represented by the timer count value TM2
It is repeatedly determined whether or not the total energization time is less than or equal to a predetermined time T12.

On the other hand, during the repetitive execution, the garbage in the tank 11 was heated by the hot air heater 46 and the bottom of the tank 11 heated by the tank heater 12 while being stirred by the stirring member 20 in the split stirring mode. It continues to be heated by hot air. At this time, regardless of whether the tank heater 12 is energized or not, steam is constantly generated from the garbage, and the water content of the garbage continues to decrease. Since the water content of the garbage is decreasing from the surface of the garbage, in general, when the surface of the garbage is dried, the generation efficiency of the water vapor, that is, the evaporation efficiency of the water content of the garbage, gradually decreases. I will do it.

In the above case, the amount of heat supplied to the garbage by the bottom of the tank 11 as the heating medium during the energization of the tank heater 12 decreases the rate of consumption as heat of vaporization for generating steam. The ratio of the heat used to raise the temperature of the surface of the garbage increases, and the temperature of the surface of the garbage increases quickly. As a result, the temperature at the bottom of the tank 11 also quickly rises to the upper limit temperature. Therefore, as shown in FIG. 17, the energization of the tank heater 12 is canceled after the tank heater 12 is started by the tank heater control process of FIG. The time it takes to get In addition, when the tank heater 12 is not energized, the amount of heat consumed as heat of vaporization for generating water vapor decreases, and the speed at which the temperature of the surface of the garbage decreases decreases. As a result, the speed at which the temperature of the heating medium decreases decreases, and the tank heater 12
The time from when the energization of is released by the tank heater control process to when it is restarted becomes longer.

Due to the above phenomenon, the total energization time of the tank heater 12 within the predetermined time T11, that is, the timer count value TM2 when the timer count value TM1 has counted the predetermined time T11 gradually decreases. The timer count value TM2 is counted for a predetermined time T.
If the number is equal to or less than 12, “YE” in step 410
Based on the determination of "S", the electric control circuit 70 advances the program to step 416 and subsequent steps. In step 416, the value "1" is added to the count value CNT1. In step 418, the count value CNT1
Is determined to have reached a preset number of times N1 (for example, “2”). Then, at this time, the same count value C
If NT1 has not reached the predetermined number of times N1, "NO"
And the program proceeds to step 414 and subsequent steps.

Thereafter, as described above, every time "YES" is determined in step 410, the count value CNT1 is incremented by one in step 416. The count value CNT1 is obtained by repeatedly executing the step 416.
Has reached the predetermined number N1, the electric control circuit 70 sets the flag FLG2 in step 420 to a value indicating that the garbage is in a state to switch the stirring mode based on the determination of "YES" in step 418. 1 ”,
The program proceeds to step 414 and subsequent steps.

During the repetition of step 414, if it is determined that the count of the timer count value TM2 is at least once greater than the predetermined time T12, the electric control circuit 70 resets the count value CNT1 to the value "0" in step 412. "
Set to. As a result, the electric control circuit 70 determines that the count value CNT2 in step 410 has reached the predetermined time T12.
The flag FLG2 is set to the value "1" only when the determination of the following is continuously repeated a predetermined number of times N1, so that the switching of the stirring mode is performed more accurately.

On the other hand, steps 128 to 132 in FIG.
In response to the interrupt signal from the fifth timer 75, the electric control circuit 70 also repeatedly executes the second switching timer interrupt program shown in FIG. 16 every predetermined short time. The second switching timer interrupt program switches the stirring mode of the stirring member 20 by the driving device 30 based on the total energizing time of the tank heater 12.

The electric control circuit 70 starts executing the timer interrupt program in step 500, and determines in step 502 whether the flag FLG1 is a value "1". At this time, if the tank heater 12 is not energized and the flag FLG1 is set to the value "0", the program proceeds to step 512 based on the determination of "NO", and the timer interrupt program is executed. Stop once. On the other hand, at this time, if the tank heater 12 is energized and the flag FLG1 is set to the value “1”, the program proceeds to step 504 and thereafter.

In step 504, a value "1" is added to the timer count value TM3. Timer count value T
M3 is for measuring the total energizing time of the tank heater 12 from the start of the execution of the divided stirring mode. In step 506, it is determined whether or not the timer count value TM3 added in step 504 has reached a predetermined time T13 (for example, 167 minutes). If the timer count value TM3 has not reached the predetermined time T13 at this time, the program proceeds to step 512 based on the determination of "NO", and the timer interrupt program is temporarily terminated.

By repeatedly executing the processing consisting of the steps 500 to 506 and 512, the timer count value TM3 becomes "1" under the condition that the tank heater 12 is energized and the flag FLG1 is set to "1". The total energizing time of the tank heater 12 from the start of execution of the divided stirring mode is continuously measured by the timer count value TM3 by 1 ". And, as shown in FIG.
The counting of the timer count value TM3 is equal to the thirteenth predetermined time T.
If the number has reached 13, "YES" in step 506.
Then, the electric control circuit 70 advances the program to step 508 and subsequent steps. In step 508,
The flag FLG2 is set to a value "1" indicating that the garbage is in a state where the stirring mode should be switched. Step 51
0, the timer count values TM1 and TM2 are used to execute an end timer interrupt program described later.
Is reset to the value “0”. Then, in step 512, the timer interrupt program is terminated.

As described above, during the circulation processing of steps 128 to 132 of FIG. 9, step 420 of the first switching timer interrupt program of FIG.
When the flag FLG2 is set to the value “1” by any one of the processes in step 510 of the switching timer interrupt program, the electric control circuit 70 then proceeds to step 130.
Is determined, the determination is "YES", the program proceeds to step 134 and thereafter, and the divided stirring mode ends. In step 134, the fourth and fifth
The reception of the interrupt signal by the timers 74 and 75 is prohibited. Thus, the repetitive execution of each of the switching timer interrupt programs ends. Then, the electric control circuit 70 advances the program to step 136 and subsequent steps in FIG. 10, and switches the stirring mode of the stirring member 20 by the driving device 30 to the intermittent stirring mode.

During the circulation processing in steps 128 to 132, a second predetermined time T2 has elapsed since the start of the stirring of the garbage in the divided stirring mode, and the second timer 72 reset and started in step 124 measures the time. When the predetermined time T2 has been reached, regardless of the value of the flag FLG2,
The electric control circuit 70 advances the program to step 134 and thereafter, and ends the divided stirring mode.

B-3. Intermittent Stir Mode In the case where the stirrer 20 and the driving device 30 stir the garbage in the intermittent stir mode, the electric control circuit 70 allows the sixth timer 76 to accept the interrupt signal in step 136 of FIG. Thereby, the electric control circuit 7
0 during execution of this main program.
The end timer interrupt program is executed by interruption every predetermined short time. Then, after the processing of step 136, the electric control circuit 70 proceeds to step 138.
To 142 are repeatedly executed.

In step 138, an intermittent stirring process is performed. This intermittent stirring process is performed by the rotation position sensor 2
By controlling the stirring motor 31 based on the detection of 5, 25,
This is a process of repeating the operation of rotating the stirring member 20 for a predetermined number of times (for example, “3”) and stopping for a predetermined time (for example, 5 seconds) while switching its direction every predetermined number of times (for example, once). . Thereby, the garbage in which the amount of water has decreased in the latter half of the heat-drying process is dried only on the surface so as to reduce the efficiency of the heat-drying process, or is excessively stopped, and is fixed to the inner wall at the bottom of the tanning tank 11. And stirring efficiently. The respective controls in the intermittent stirring process do not stop the progress of the program as in the respective controls in the continuous stirring process and the divided stirring process, but are executed as needed during the circulation process in steps 138 to 142. is there.

In step 140, the flag FLG
It is determined whether 3 is a value “1”. Flag FLG3
The value “1” indicates that the evaporation of the water content of the kitchen waste has been completed, and the value “0” indicates that the evaporation has not been completed. It is set to “1”. And
At this time, if the flag FLG3 is not set to the value “1”, the program proceeds to step 142 based on the determination of “NO”.

In step 142, the first timer 71 reset and started in step 118 of FIG.
Is set to a third predetermined time T3 (for example, 6
Time) has been reached. At this time, if the third predetermined time T3 has not elapsed since the start of the heating and drying process, and the time measured by the first timer 71 has not reached the predetermined time T3, a determination of “NO” is made. The program proceeds to step 138 again.

On the other hand, during the circulation processing, the electric control circuit 70
In response to the interrupt signal from the sixth timer 76, the end timer interrupt program of FIG. 17 is repeatedly executed every predetermined short time. This termination timer interrupt program is to terminate the heating and drying process of the garbage according to the decrease in the duty ratio of the tank heater 12. Specifically, the predetermined energizing time of the tank heater 12 within the predetermined time T11 is a predetermined time T that is a predetermined ratio (for example, 20%) with respect to the predetermined time T11.
When it is 14 (for example, 2 minutes) or less, the flag FLG3 is set assuming that the evaporation of the water content of the kitchen waste has been completed. The predetermined time T14 is set lower than the predetermined time T12. Hereinafter, the details will be described.

The electric control circuit 70 repeatedly executes the processing of steps 602 to 608 each time the execution of the timer interrupt program is started in step 500. The processing consisting of steps 602 to 608 is the same as the processing consisting of steps 402 to 408 in the first switching timer interrupt program of FIG. 15 described above.
The value of the flag FLG1 is maintained while the tank heater 12 is energized while the value of the flag FLG1 is maintained.
Is set to the value "1", the timer count value TM2 also continues to increase by the value "1", and the energizing time of the tank heater 12 is continuously measured by the timer count value TM2. Then, when the timer count value TM1 reaches the predetermined time T11, the electric control circuit 70 advances the program to step 610 based on the determination of “YES” in step 608.

In step 610, it is determined whether the timer count value TM2 is equal to or less than a predetermined time T14. If the timer count value TM2 is larger than the predetermined time T14 at this time, the program proceeds to step 612 based on the determination of “NO”. Step 612
In, the count value CNT2 is set to the value “0”. The count value CNT2 is for measuring the number of continuous times in which the timer count value TM2 is determined to be equal to or less than the predetermined time T14, so as to more appropriately execute the end of the heating and drying process. In step 614, both the timer count values TM1 and TM2 are reset to the value "0". Thus, the next time the timer interrupt program is executed, the two count values TM1, T
M2 starts timing again. Then, in step 622, the timer interrupt program is temporarily ended.

Thereafter, each time this timer interrupt program is executed, the processing of steps 600 to 614 is repeatedly executed. Thus, as shown in FIG. 20, the total energization time of the tank heater 12 within the predetermined time T11 is equal to the timer count value TM, as in the case of the first switching timer interrupt program of FIG.
2, and it is repeatedly determined whether or not the measured time is equal to or less than a predetermined time T14.

On the other hand, during the repetitive execution, the kitchen waste in the tank 11 was heated by the hot air heater 46 and the bottom of the tank 11 heated by the tank heater 12 while being stirred by the stirring member 20 in the intermittent stirring mode. It continues to be heated by hot air. At this time, steam is constantly being generated from the kitchen waste, and the water content of the kitchen waste is continuously decreasing. Then, when the evaporation of the water content of the kitchen garbage approaches to completion, the tank heater 12 is reduced in the same manner as when the evaporation efficiency of the water amount of the kitchen garbage is reduced during the execution of the divided stirring mode.
The time from the start of energization to the release is shortened, and the time from the release of the energization to restart is increased.

Due to the above phenomenon, the total energizing time of the tank heater 12 within the predetermined time T11, that is, the timer count value TM2 when the timer count value TM1 has counted the predetermined time T11 gradually decreases. The timer count value TM2 is counted for a predetermined time T.
If the number is equal to or less than 14, “YE” in step 610 will be described.
Based on the determination of "S", the electric control circuit 70 advances the program to step 616 and subsequent steps. In step 616, the value "1" is added to the count value CNT2. In step 618, the count value CNT2
Is determined to have reached a second predetermined number of times N2 (for example, “2”). If the count value CNT2 does not reach the predetermined number N2 at this time, "N
"O" is determined, and the program proceeds to the step 614 and thereafter.

Thereafter, as described above, every time "YES" is determined in step 610, the count value CNT2 is incremented by "1" in step 616. The count value CNT2 is obtained by repeatedly executing the step 616.
Has reached the second predetermined number N2, based on the determination of “YES” in step 618, the electric control circuit 70 sets the flag FLG3 in step 620 to a value indicating that evaporation of the water content of the garbage has been completed. 1 ", and the program proceeds to step 614 and subsequent steps.

If it is determined that the count of the timer count value TM2 is at least once greater than the fourteenth predetermined time T14 during the repeated execution of step 614, the electric control circuit 70 resets the count value CNT2 in step 616. Set to “0”. Thereby, the electric control circuit 70
The determination that the count value CNT2 in step 610 is equal to or less than the fourteenth predetermined time T14 is made by the second predetermined number N2.
The flag FLG3 is set to the value "1" only when the above process is repeated, so that the end of the heating and drying process is executed more accurately.

During the circulation processing in steps 138 to 142 in FIG. 10, as described above, the flag F is determined by the processing in step 620 of the end timer interrupt program in FIG.
When the value of LG3 is set to “1”, the electric control circuit 70 next executes “YE” when executing the determination processing of step 140.
S "is determined, the program proceeds to step 144 and thereafter, the intermittent stirring mode is terminated, and the heating and drying process of the garbage is terminated. In step 144, acceptance of the interrupt signal by the third and sixth timers 73 and 76 is prohibited. Thus, the repetitive execution of the heating / drying processing timer interrupt program and the end timer interrupt program is completed, and the hot air heater 46, the catalyst heater 53b
And the control of the tank heater 12 is stopped. Step 14
At 6, the heaters 12, 46, and 53b are stopped. Thereby, the tank heater 12 is maintained in a non-energized state. In step 148, the flag FLG
1 is set to a value “0” indicating that the tank heater 12 is in a non-energized state.

During the circulation process in steps 138 to 142, a third predetermined time T3 from the start of the heating and drying process is set.
Has elapsed and the time counted by the first timer 71 that has been reset and started in step 118 of FIG. 8 reaches the predetermined time T3, the electric control circuit 70 executes the program from step 144 onward regardless of the value of the flag FLG3. Proceed to
The heating and drying process ends.

As described above, in this embodiment, when the stirring member 20 is stirring the garbage in the divided stirring mode, the surface of the garbage dries, the evaporation efficiency of the water content decreases, and the tank heater 12 When the duty ratio decreases, the stirring mode is automatically switched to the intermittent stirring mode in accordance with the decrease in the duty ratio. Therefore, according to this, the garbage is always efficiently stirred, and the efficiency of the heating and drying process is improved.

When the stirring member 20 is stirring the garbage in the divided stirring mode, the stirring mode is automatically switched to the intermittent stirring mode even when the total energization time of the tank heater 12 reaches the predetermined time T13. . Therefore, this also allows the kitchen waste to be constantly stirred efficiently,
The efficiency of the heat drying process is improved. In particular, in the case of cooking and drying garbage such as vegetables having a large surface area such that the efficiency of evaporation of the same amount of water hardly changes even if the amount of water is reduced, the stirring and stirring mode is meaningless. Is avoided, and a decrease in the efficiency of the heating and drying treatment is avoided.

Further, when the stirring member 20 is stirring the garbage in the divided stirring mode, the stirring mode is automatically switched to the intermittent stirring mode even when the second predetermined time T2 has elapsed from the start of the stirring. Therefore, according to this, since the stirring mode is reliably switched, the continuation of the split stirring mode without meaning is avoided, and a decrease in the efficiency of the heating and drying process is avoided.

During the heating and drying of the garbage, when the evaporation of the water content of the garbage is completed and the duty ratio of the tank heater 12 decreases, the tank heater 1 is automatically turned on in response to the decrease in the duty ratio.
2 is maintained in a non-energized state. Therefore, according to this, when the evaporation of the water content of the garbage is completed, the heating and drying process can be properly terminated.

During the heating and drying of the garbage, the tank heater 12 is automatically kept in the non-energized state even when the third predetermined time T3 has elapsed from the start of the heating and drying. Therefore, according to this, since the heating and drying processing is surely terminated, the heating and drying processing is prevented from continuing unnecessarily.

C. Cooling process Next, the cooling process will be described in detail. After the completion of the heating and drying processing, the electric control circuit 70 advances the program to step 150 and subsequent steps in FIG. 11 to start the cooling processing of the kitchen waste after the heating and drying processing. The electric control circuit 70 resets the first timer 71 in step 150 to start time measurement, and then repeatedly executes a circulation process including steps 152 and 154.

In step 152, a continuous stirring process similar to step 120 in FIG. 8 is executed. Thus, during the circulation process, the stirring member 20 continuously rotates while switching its direction every predetermined time.

In step 154, the time counted by the first timer 71, which has been reset and started in step 152, is set to a fourth predetermined time T4 (for example, 10 seconds).
Min) has been reached. At this time, if the fourth predetermined time T4 has not elapsed since the start of the cooling process, and if the time measured by the first timer 71 has not reached the predetermined time T4, the electric control circuit 70 determines “NO”. Then, the program proceeds to step 152 again.

On the other hand, during the circulation processing in steps 152 and 154, the rotation of the hot air fan 42 and the exhaust fan started in step 112 of FIG. 8 is continued, and the internal air in the tank 11 is It continues to circulate while releasing some into the atmosphere. Therefore, at this time,
The garbage in the tank 11 after the heating and drying process is gradually cooled while being heated and dried by the residual heat of the tank heater 12 and the hot air heater 46. Thus, when the garbage is discharged, which will be described later, a problem such as melting of the garbage bag in the container 18 containing the garbage due to heat of the garbage is avoided, and the garbage can be easily handled.

During the circulation processing in steps 152 and 154, the fourth predetermined time T4 has elapsed since the start of the cooling processing, and the time counted by the first timer 71 reset and started in step 150 becomes equal to the predetermined time T4. If it has reached, based on the determination of “YES” in step 154, the electric control circuit 70 advances the program to step 156 and thereafter, and ends the processing. In step 156, the operations of the stirring motor 31, the hot air fan motor 43, and the exhaust fan motor 52 are stopped, and the heating / drying lamp 61c is turned off.

D. Next, the discharging process will be described in detail. After the completion of the cooling process, the electric control circuit 70 advances the program to step 160 and subsequent steps in FIG. 12 on condition that the container 18 is in a state where kitchen waste can be introduced from the outlet 11b. Discharge processing of kitchen waste after drying processing is started.

At step 160, the electric control circuit 70 resets and starts the first timer 71 to start time measurement. In step 162, the discharge lamp 61d
Lights up. In step 164, the discharge port lid motor 16e is operated until the discharge port open state detection sensor 16g detects the open state of the discharge port 11b, and the discharge port 11b
Open. In step 166, the stirring motor 31 is rotated in the reverse direction to start rotating the stirring member 20 in the reverse direction. In step 168, the above step 160
Then, it is determined whether or not the time counted by the first timer 71, which has been reset and started, has reached a fifth predetermined time T5 (for example, 4 minutes) set in advance. At this time, the fifth predetermined time T5 has not elapsed since the start of the discharging process, and the first
If the time measured by the timer 71 has not reached the predetermined time T5, the electric control circuit 70 repeatedly executes the same process based on the determination of "NO".

During the repetition of step 168, the rotation of the stirring member 20 in the reverse direction started in step 166 is continuously continued. Thereby, the garbage in the tank 11 is lifted toward the discharge port 11b by each blade 23, and most of the garbage slides down from each blade 23 and is discharged out of the tank 11 through the discharge port 11b. The discharged kitchen waste is transferred to the container 18 via the hopper 11b1.
It is housed in a garbage bag attached inside.

During the repetition of step 168, the first timer 7 reset and started in step 166 after the fifth predetermined time T5 has elapsed from the start of the discharging process.
When the time of 1 reaches the predetermined time T5, the electric control circuit 70 advances the program to step 170 and thereafter based on the determination of "YES", and ends this discharge processing. In step 170, the stirring motor 31 is stopped, and the discharge lamp 61d is turned off. And after the same process,
The program proceeds to step 102 and subsequent steps in FIG. 7 again. The garbage stored in the garbage bag in the container 18 is in a state where the container 18 is tilted (the state of the phantom line in FIG. 4).
Is taken out together with the garbage bag.

In the above-described embodiment, during the stirring of the garbage in the continuous stirring mode of the stirring member 20, when the first predetermined time T1 has elapsed from the start of the stirring in the continuous stirring mode, the stirring mode is switched to the split stirring mode. However, in this case as well, the switching may be performed based on the power supply rate or the total power-on time of the tank heater 12, as in the case of switching from the divided stirring mode to the intermittent stirring mode in the same embodiment. Good. That is, when the total energizing time of the tank heater 12 within the predetermined time is equal to or less than a predetermined ratio (for example, 90%) with respect to the predetermined time, or when the total energizing time reaches the predetermined time (for example, 170 seconds). At this time, the switching may be performed.

In the above-described embodiment, the condition that the stirring mode of the stirring member 20 is switched from the split stirring mode to the intermittent stirring mode is that the duty ratio of the tank heater 12 is reduced to a predetermined value or less and the total energizing time is set. Predetermined time T1
3, but only one of the two may be adopted. Further, under the latter condition, the total energizing time of the tank heater 12 is limited to the time during the divided stirring mode, but may be a time after the start of the heating and drying process.

In the above-described embodiment, the heating and drying process is performed when the duty ratio of the tank heater 12 decreases to a predetermined value or less during the heating and drying process or when a third predetermined time has elapsed from the start of the heating and drying process. In this case, similarly to the case of switching from the divided stirring mode to the intermittent stirring mode in this embodiment, the termination may be performed based on the total energization time of the tank heater 12. Good.

In the above embodiment, the stirring mode of the stirring member 20 is changed to the continuous stirring mode during the heating and drying process.
The mode is switched in the order of the divided stirring mode and the intermittent stirring mode. However, the present invention is also effective for a mode in which only one or two of the modes are executed. Also, the present invention is effective for a device that changes the rotation amount or the stop time of the stirring member 20 during the execution of the divided stirring mode or the intermittent stirring mode, and a device that starts the continuous stirring mode after the end of the intermittent stirring mode. is there. Also in this case, similarly to the case of switching from the divided stirring mode to the intermittent stirring mode in the above embodiment, based on the duty ratio or the total energization time of the tank heater 12 or the execution time of each mode, the above-described respective changes and the intermittent stirring mode are performed. It is preferable to switch to the continuous stirring mode.

Further, in the above embodiment, the switching of the stirring mode and the end of the heating and drying process are executed based on the energization status of the tank heater 12, but the hot air heated by the hot air heater 46 also heats the kitchen garbage. Therefore, a hot air heater 46 is employed in place of the tank heater 12 to control the switching of the stirring mode and the end of the heating and drying process based on the energization state of the hot air heater 46. You may.

[Brief description of the drawings]

FIG. 1 is a front view showing a kitchen waste treatment apparatus according to one embodiment of the present invention.

FIG. 2 is a right side view of the kitchen waste treatment apparatus.

FIG. 3 is a partially broken front view showing an internal configuration of the kitchen waste treatment apparatus.

FIG. 4 is a partially broken right side view of the kitchen waste treatment apparatus.

5A is a right side view showing a closed state of the outlet in FIG. 4, and FIG. 5B is a right side view showing an opened state of the outlet.

FIG. 6 is a block diagram showing an entire electric control unit of the kitchen waste treatment apparatus.

FIG. 7 is a flowchart showing a first part of a main program executed by the electric control circuit of FIG. 6;

FIG. 8 is a flowchart showing a second part of the main program.

FIG. 9 is a flowchart showing a third part of the main program.

FIG. 10 is a flowchart showing a fourth part of the main program.

FIG. 11 is a flowchart showing a fifth part of the main program.

FIG. 12 is a flowchart showing a sixth part of the main program.

FIG. 13 is a flowchart showing a heating / drying processing timer interrupt program executed by the electric control circuit of FIG. 6;

FIG. 14 is a flowchart showing details of the tank heater control processing of FIG.

FIG. 15 is a flowchart illustrating a first switching timer interrupt program executed by the electric control circuit of FIG. 6;

FIG. 16 is a flowchart showing a second switching timer interrupt program executed by the electric control circuit of FIG. 6;

FIG. 17 is a flowchart showing a termination timer interrupt program executed by the electric control circuit of FIG. 6;

18 is a time chart showing switching control of the stirring mode by the first switching timer interrupt program of FIG.

FIG. 19 is a time chart showing switching control of the stirring mode according to the second switching timer interrupt program of FIG. 16;

20 is a time chart showing end control of the heating / drying process by the end timer interrupt program of FIG. 17;

[Explanation of symbols]

10: accommodation tank, 11: tank, 12: tank heater, 1
3 ... Tank temperature sensor, 20 ... Stirring member, 30 ... Drive device, 40 ... Hot air circulation device, 46 ... Hot air heater, 47 ... Hot air temperature sensor, 50 ... Exhaust device, 60 ... Control box,
70 ... Electrical control circuit (microcomputer).

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-9-72663 (JP, A) JP-A-10-128271 (JP, A) JP-A-7-294140 (JP, A) JP-A-10-1998 128298 (JP, A) JP-A-9-225438 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B09B 3/00 F26B 11/00-25/22

Claims (8)

(57) [Claims] 1. A storage tank for storing garbage, a stirring means for stirring the garbage put in the storage tank, and a stirring control means for controlling the operation of the stirring means to switch the stirring mode of the garbage in time series. Heating means for heating , via a heating medium, garbage stirred by the stirring means inside the storage tank when power is supplied, a temperature sensor for detecting a temperature of the heating medium, and a temperature sensor for detecting the temperature of the heating medium . A garbage comprising: heating control means for starting energization of the heating means when the temperature has dropped to a predetermined lower limit temperature, and releasing the power supply to the heating means when the detected temperature has risen to a predetermined upper limit temperature. In the processing apparatus, garbage processing characterized by comprising stirring mode switching means for controlling the operation of the stirring control means in accordance with a decrease in the duty ratio of the heating means and switching the stirring mode of the garbage. Location. 2. The kitchen waste disposal apparatus according to claim 1,
The stirring mode switching means controls the stirring control means so as to switch the stirring mode of the stirring means when the total energizing time of the heating means within a predetermined time becomes equal to or less than a predetermined ratio with respect to the predetermined time. Garbage processing equipment. 3. A storage tank for storing the garbage, a stirring means for stirring the garbage put in the storage tank, and a stirring control means for controlling the operation of the stirring means to switch the stirring mode of the garbage in time series. Heating means for heating , via a heating medium, garbage stirred by the stirring means inside the storage tank when power is supplied, a temperature sensor for detecting a temperature of the heating medium, and a temperature sensor for detecting the temperature of the heating medium . A garbage provided with heating control means for starting energization of the heating means when the temperature falls to a predetermined lower limit temperature and canceling energization to the heating means when the detected temperature rises to a predetermined upper limit temperature; In the processing apparatus, the stirring control unit controls the stirring control unit according to a total energizing time of the heating unit, and when the total energizing time reaches a predetermined time, switches a stirring mode of the stirring unit. Garbage processing device characterized in that a stage. 4. The garbage disposal apparatus according to claim 1, wherein a predetermined time has elapsed after the stirring means started stirring the garbage in any one of the stirring modes, and the stirring mode of the stirring means was changed. A garbage disposal apparatus, further comprising control means for controlling the agitation control means so as to switch over. 5. A storage tank for storing the garbage, a stirring means for stirring the garbage put in the storage tank, and a stirring control means for controlling the operation of the stirring means to switch the stirring mode of the garbage in time series. Heating means for heating , via a heating medium, garbage stirred by the stirring means inside the storage tank when power is supplied, a temperature sensor for detecting a temperature of the heating medium, and a temperature sensor for detecting the temperature of the heating medium . A garbage provided with heating control means for starting energization of the heating means when the temperature falls to a predetermined lower limit temperature and canceling energization to the heating means when the detected temperature rises to a predetermined upper limit temperature; In the processing apparatus, a heating stop means for stopping the control of the heating means by the heating control means and keeping the heating means in a non-energized state in accordance with a decrease in the duty ratio of the heating means is provided. Garbage processing apparatus according to. 6. The kitchen waste disposal apparatus according to claim 5,
The heating stop means stops the control of the heating means by the heating control means and turns off the heating means when the total energizing time of the heating means within a predetermined time falls below a predetermined ratio with respect to the predetermined time. A garbage disposal device that is kept energized. 7. A storage tank for storing the garbage, a stirring means for stirring the garbage placed in the storage tank, and a stirring control means for controlling the operation of the stirring means to switch the stirring mode of the garbage in time series. Heating means for heating , via a heating medium, garbage stirred by the stirring means inside the storage tank when power is supplied, a temperature sensor for detecting a temperature of the heating medium, and a temperature sensor for detecting the temperature of the heating medium . A garbage provided with heating control means for starting energization of the heating means when the temperature falls to a predetermined lower limit temperature and canceling energization to the heating means when the detected temperature rises to a predetermined upper limit temperature; In the processing apparatus, when the total energization time of the heating unit reaches a predetermined time, a heating stop unit that stops control of the heating unit by the heating control unit and maintains the heating unit in a non-energized state. Garbage treatment apparatus, characterized in that digit. 8. The kitchen waste disposal apparatus according to claim 1, wherein a predetermined time has elapsed after the heating control means started controlling the heating means, and the heating means is controlled by the heating control means. A garbage disposal apparatus comprising means for stopping control and maintaining the heating means in a non-energized state.