JPH08200945A - Refuse disposing device and control method therefor - Google Patents

Abstract

PURPOSE: To perform proper and effective control at each treating process by providing an opening adjusting device to adjust the openings of a passage for circulation and an exhaust circuit. CONSTITUTION: An intake port 22 through which outside air is taken in is formed in the constituting wall of a passage 2 for circulation and in the vicinity of a gas suction port 16 and the intake port 22 is opened and closed by a damper 6 for intake air. An exhaust circuit 21 having a deodorizing device 7 located in the vicinity of a spot situated downstream from a gas burner 3 is connected to the passage 2 for circulation. A distribution ratio adjusting damper 51 to set a distribution ratio between an amount of gas fed to the passage 2 for circulation situated downstream from a branch point 29 and an amount of gas discharged to the exhaust circuit 21 side is arranged at the branch point 29 of the exhaust circuit 21. The distribution ratio adjusting damper 51 varies a rotation angle according to each of a temperature increasing process, a drying process, and a cooling process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food waste processing device, and more particularly, to a food waste processing device for drying food waste such as kitchen waste produced in a kitchen or the like to a substantially odorless state.

[0002]

2. Description of the Related Art The invention of Japanese Patent Application No. 6-129241 has already been proposed as this seed waste processing apparatus. In this case, as shown in FIG. 7, a drying container (1) equipped with an agitator (4) is formed in a casing (K), and
The drying container (1) has a circulation passage (2) connecting the hot air discharge port (18) formed on the bottom wall and the gas suction port (16) formed on the side wall near the dust input port (11a). Is provided.
The circulation passage (2) is provided with a gas burner (3) which is a heat source, a fan (F) on the upstream side of the gas burner, and an air supply port (22) located near the upstream side of the fan (F). The air supply port (2
2) is configured to be opened and closed by the air supply damper (6). Further, the gas burner (3) in the circulation passage (2)
An exhaust circuit (21) equipped with a deodorizing device (7) is branched from the downstream of the.

The above-mentioned food waste treatment apparatus has a temperature raising step (A) for raising the temperature inside the drying container (1) to a set temperature (specifically, about 105 ° C.), and steam is generated from the food waste to generate the water vapor. A drying step (B) of discharging to the outside and a cooling step (C) of cooling the inside of the drying container (1) after drying the food waste are sequentially executed. In the heating process (A), the air supply damper (6) is closed and the gas burner is closed.
Circulation passage for heated gas by (3) (2) Hot air discharge port (18) at downstream end → Drying container (1) → Gas suction port (16) → Fan (F) →
Circulate with the gas burner (3), which allows the drying vessel (1)
The food waste inside is heated up to the set temperature while stirring with a stirrer (4).

In the drying step (B), the air supply damper (6) is opened halfway to perform the above circulation and heating while sucking the outside air from the air supply port (22) into the circulation passage (2). The outside air is sucked into the circulation passage (2) when the outside air is sucked.
(2) Creates excess gas in the chamber, which causes the drying container (1)
This is because the water vapor and the like inside is actively discharged from the exhaust circuit (21) to the outside.

In the cooling step (C), the gas burner (3) is kept in a fire extinguishing state, the air supply damper (6) is kept in a fully opened state, and a large amount of outside air taken in from the air supply port (22) is used to dry the container.
(1) Cool the inside quickly. With this product, when each of the above treatment steps is completed, the food waste in the drying container (1) is dried and the volume is significantly reduced, and it can be disposed of as ordinary garbage, or it can be used as a fertilizer for garden trees. It can also be reused as, and can contribute to solving the so-called garbage problem.

However, in the above-mentioned conventional device, the distribution ratio of the amount of gas exhausted from the exhaust circuit (21) and the amount of gas returned from the circulation passage (2) into the drying container (1) is fixed. However, there is a problem in that it is not possible to carry out an appropriate process or an efficient process which is divided in each case when each process such as the temperature raising process (A) is executed or when the opening / closing lid (11) is opened. The above problems will be described in more detail.

The optimum distribution ratio of the amount of gas discharged from the exhaust circuit (21) and the amount of gas returned from the circulation passage (2) to the drying container (1) is determined when the opening / closing lid (11) is opened or each processing step (A) is performed. ) (B) etc. are different from each other. That is, when the opening / closing lid (11) is opened,
By preventing the circulating gas in the circulation passage (2) from returning to the drying container (1) and maintaining a negative pressure tendency in the drying container (1), the odor from the dust inlet (11a) can be eliminated. In this case, all the circulating gas must be in the exhaust circuit (2
It is desirable to set the above distribution ratio so that it flows to 1).

In the temperature raising step (A), it is desirable to block the circulation system of the heated gas and the exhaust circuit (21) to prevent heat from escaping to the outside.
It is desirable to set the above distribution ratio so as to return to (1). In the drying step (B), it is necessary to set the above distribution ratio to a value suitable for promoting the drying of food waste.

However, in the above-mentioned conventional one, since the exhaust circuit (21) is simply branched from the circulation passage (2), the temperature raising step (A) and the like are executed and opened / closed. Lid (1
The above distribution ratio cannot be changed when opening 1),
It is not possible to perform appropriate processing or efficient processing that is divided in each case. The present invention has been made in view of the above points, and is provided with a "dust input port (11
a) a drying container (1) provided with a), and a circulation passage (2) formed so as to circulate between the drying container (1) and the fan (F)
And a heating source for heating the circulating gas in the circulation passage (2), and an exhaust circuit (21) branch-connected to the circulation passage (2)
``, A food waste treatment device configured to discharge water vapor or the like generated from food waste with the heat generation of the heating source from the exhaust circuit (21) '', in each treatment step (A) (B), etc. The task is to make appropriate and efficient control possible.

[0010]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is to "provide an opening adjustment device for adjusting the openings of the circulation passage (2) and the exhaust circuit (21)". .

[0011]

Next, the operation of the above technical means will be described. When the above technical means is adopted, the following various controls can be performed when the steps such as the temperature raising step (A) and the opening / closing lid (11) are opened. Note that the following control modes are merely listed as examples, and various controls other than this are possible. ． Regarding the temperature raising process (A), the opening of the exhaust circuit (21) is reduced to the minimum value by the opening adjustment device, and the circulation passage (2) downstream from the branch point to the exhaust circuit (21) is opened to the maximum. To maintain. As a result, almost no circulating gas in the circulation passage (2) is discharged from the exhaust circuit (21), and most of the circulating gas can be returned to the drying container (1). Therefore, when the opening adjustment device is operated in this way, the heat of the circulation system such as the circulation passageway (2) is removed from the exhaust circuit.
It becomes difficult to escape to the outside via (21), and it becomes possible to quickly raise the temperature in the drying container (1) to the set temperature in the temperature raising step (A).

When the opening degree on the exhaust circuit (21) side is reduced to the minimum value, the opening degree of the circulation passage (2) on the downstream side of the branch point does not necessarily have to be the maximum value. This is because the amount of the circulating gas returned to the drying container (1) must be maximized when the exhaust circuit (21) side is maintained at the minimum opening. ． In the drying process (B) and the cooling process (C), the distribution ratio of the amount of gas discharged from the exhaust circuit (21) and the amount of gas returned from the circulation passage (2) into the drying container (1) is The opening degree adjusting device adjusts the opening degree on the exhaust circuit (21) side or the like so as to have an optimum value for early drying. By operating the opening adjustment device in this manner, it becomes possible to rapidly dry the food waste.

Further, in the cooling step (C) of cooling the inside of the drying container (1) while sucking a large amount of outside air into the circulation passage (2) while the heat source is stopped generating heat, suction is carried out. The inside of the drying container (1) is quickly cooled by adjusting the opening on the exhaust circuit (21) side with the opening adjustment device so that the most outside air is supplied to the inside of the drying container (1). it can. ． When the opening / closing lid (11) is opened during the drying operation The opening degree adjusting device increases the opening degree on the exhaust circuit (21) side to set the circulation passageway (2) to the minimum opening degree. Then, the amount of gas discharged from the circulation passage (2) into the drying container (1) is minimized, and the amount of gas discharged from the circulation container (1) is smaller than that when the large amount of gas is discharged into the drying container (1). 1) The internal pressure becomes low. That is, the inside of the drying container (1) is surely in a negative pressure state.

Therefore, when the opening control device is operated in this way, the drying container is opened from the dust input port (11a) in the open state.
(1) It is possible to prevent the air inside from leaking to the outside. ． Others If the exhaust circuit (21) side is throttled to the minimum opening degree when the operation is stopped, it becomes difficult for the odor in the drying container (1) to leak to the outside from the exhaust circuit (21).

[0015]

[Effect] The present invention has the following unique effects. By operating the opening adjustment device, the opening on the exhaust circuit (21) side and the opening on the circulation passage (2) downstream from the branch point can be adjusted to various ratios. Appropriate and efficient control becomes possible when opening (11) and in each processing step (A) (B).

[0016]

Embodiments of the present invention described above will now be described with reference to the drawings. As shown in Figure 1, a cylindrical drying container (1)
Is installed in the casing (K) in an inclined state,
The dust inlet (11a) at the upper end is covered with an openable / closable lid (11). Further, the opening / closing lid (11) has a drying container.
(1) A temperature sensor (81) and a humidity sensor (82) for detecting the temperature and humidity inside are provided, and the opening / closing lid (11) is a lid sensor provided near the dust inlet (11a). The open / closed state is detected at (83).

The bottom of the drying container (1) has a bottom lid that can be opened and closed.
A discharge port (12) covered with (13) is provided so that the treated dust can be taken out from the discharge port (12) to a recovery bucket (5) therebelow. And the bottom lid (13)
Is an arm pivotally supported on the side wall of the drying container (1).
Together are connected to (L _1), the arm (L ₁₎ is adapted to be swung manually operable control lever (L _2).

In the drying container (1), the drying container (1)
There is provided a stirrer (4) having a rotating shaft (41) arranged parallel to the central axis of and a stirring blade (42) fixed to the rotating shaft (41). It is configured to be rotationally driven by a drive motor (M1) attached to the outer bottom surface of the container (1). Also, filter (17) on the bottom of the drying container (1).
A hot air discharge port (18) is formed, and the hot air discharge port (18) circulates to a gas suction port (16) opening near the dust input port (11a) in the drying container (1). It is connected through a passage (2).

A supply port (22) for taking in outside air is formed in the wall of the circulation passage (2) in the vicinity of the gas suction port (16). (22) is designed to be opened and closed by the air supply damper (6). Also, the air supply port
At both ends of the strip (22) and the gas suction port (16), 18
A twist straightening plate (69) formed by twisting at 0 degrees is provided, and the twist straightening plate (69) is housed in a cylindrical body (60). Further, a combustion part (31) of the gas burner (3) which is a heat source and a fan (F) are provided downstream of the twist rectifying plate (69), and a gas valve is provided in the gas circuit to the gas burner (3). (3 _b ) is inserted. As a result, the gas flowing in from the gas suction port (16) is swirled by passing through the twist rectifying plate (69) and guided to the vicinity of the combustion section (31) of the gas burner (3),
This ensures that odorous components and the like in the gas are heated and burned. As the gas burner (3), an all primary air type burner such as an infrared burner using a ceramic plate is suitable, but a Bunsen burner may be used.

A gas burner (3) is provided in the circulation passage (2).
Exhaust circuit equipped with a deodorizing device (7) near the downstream side of the
(21) is connected, the branch point (29) to the exhaust circuit (21)
Is a distribution ratio adjusting damper for setting the distribution ratio between the amount of gas supplied to the circulation passage (2) downstream of the branch point (29) and the amount of gas discharged to the exhaust circuit (21). (51) (corresponds to the "opening degree adjusting device" and the "damper" in claim 3 described after the above-mentioned technical means) are provided. And
As will be described later, the distribution ratio adjusting damper (51) is configured so that the rotation angle is changed according to each of the temperature raising step (A), the drying step (B), the cooling step (C), etc. Has become.

That is, the distribution ratio adjusting damper (51) is adapted to be rotated by a damper drive motor (53) as shown in FIG. 2, and a rotary shaft equipped with the distribution ratio adjusting damper (51).
The outer periphery of (54) is provided with first to fourth projecting pins (55) (56) (57) (58) whose projecting directions are gradually deviated in the circumferential direction, and these projecting pins are respectively provided. First to fourth position detection switches (55a) (56a) (57a) (58a) corresponding to each are provided. Therefore, any of the first to fourth position detection switches (55
a) The rotation angle of the distribution ratio adjusting damper (51) can be determined depending on whether (56a) (57a) (58a) outputs the ON signal.
That is, the distribution ratio adjusting damper (51) is connected to the temperature raising process position (5
When it is in 5b), the first position detection switch (55a) outputs, when it is in the drying process position (56b), the second position detection switch (56a) outputs, and when it is in the dust throwing position (57b). Output from the 3rd position detection switch (57a)
When the switch is in the position (58b), the fourth position detection switch (58a) is configured to output respectively.

Further, in the food waste processing apparatus of this embodiment, the hot air guide path (68) extending from the vicinity of the downstream side of the branch point (29) in the circulation passage (2) to the upper part of the drying container (1). Is formed, and a leak hole (681) for discharging hot air is formed at the downstream end of the hot air guide path (68). The electric parts such as the drive motor (M1) are controlled by a control circuit (70) incorporating a microcomputer as shown in FIG.

The control circuit (70) includes a lid sensor (83) for detecting the outputs of the operation switch (84) and the stop switch (85) arranged in the instrument operating section and the open / closed state of the open / close lid (11). Output, the output of the first position detection switch (55a) to the fourth position detection switch (58a) for determining the rotation angle of the distribution ratio adjustment damper (51), and the temperature and humidity inside the drying container (1). The outputs of the temperature sensor (81) and the humidity sensor (82) for detecting the are respectively applied. The gas burner inserted gas valve (3 _b) to the gas circuit to the (3), the ignition device (3 _c) for burning the gas burner (3), passage circulating the gas in the drying vessel (1) in Fan (F) sucking into (2), drive motor (M1) for agitator (4), and damper drive motor (53) for driving distribution ratio adjustment damper (51)
Is controlled by the output of the control circuit (70).

A control program having the contents shown in the flow charts of FIGS. 4 to 6 is stored in the microcomputer in the control circuit (70), and the operation of the food waste processing apparatus according to the embodiment of the present invention will be described below. Follow the instructions below. First, in step (90), the lid determination flag (F1) for determining whether the opening / closing lid (11) has been opened for a long time is set to "0".

At step (91), it is judged from the output of the lid sensor (83) whether the opening / closing lid (11) is opened, and if the opening / closing lid (11) is opened, steps (911) (92) Is executed and the damper drive motor (53) is operated until the third position detection switch (57a) is closed by the third protruding pin (57). Then, the distribution ratio adjusting damper (51) up to the dust throwing position (57b) in FIG.
Is rotated so that the circulation passage (2) on the downstream side of the branch point (29) is in a fully closed state with the minimum opening. Further, the air supply damper (6) is closed to burn the gas burner (3) (the gas valve (3 _b ) is opened to operate the ignition device (3 _c )), and the fan (F) is operated.

When the fan (F) starts to operate, the fan (F) sucks the gas in the drying container (1) containing the odorous component, and the odorous component is on the downstream side of the fan (F). Is burned by being heated by the gas burner (3), and the treated gas is guided from the exhaust ratio circuit (21) to the outside by being guided by the distribution ratio adjusting damper (51) set at the dust feeding position (57b). All released. Also, as mentioned above, the fan (F) is
When the gas in (1) is sucked into the circulation passage (2), the inside of the drying container (1) becomes negative pressure, and the distribution ratio adjusting damper (5
1) is set at the dust input position (57b) to prevent gas from being discharged from the hot air outlet (18) at the bottom of the drying container (1) into the drying container (1). (11a) → Gas suction port (16) → Fan (F) → Torsional straightening plate (69) → Gas burner
(3) → Distribution ratio adjustment damper (51) → Exhaust circuit (21) → Deodorizer (7) and gas flows. Therefore, the gas in the drying container (1) does not leak to the outside from the dust inlet (11a), and the odor does not leak from the openable lid (11).

Further, in step (92), the lid monitoring timer (T) for measuring the time during which the opening / closing lid (11) is left open.
1) (Microcomputer built-in timer) is set to "0" and the lid determination flag (F1) is set to "2". Next, steps (93) → (91) → (911) → (912) until the set time (30 seconds in this embodiment) elapses after the opening / closing lid (11) is opened. → When the routine of (93) is repeated and the above set time elapses, the lid
The gas burner (3) is extinguished by judging that it has been forgotten to be closed in (11), and the lid judgment flag (F1) is set to "1" (see steps (93) and (94)). The above-mentioned gas burner (3) is maintained in a fire extinguishing state when the opening / closing lid (11) is forgotten to close.
This is to prevent the oil from being left in a burning state.

Next, the control operation is returned to step (91),
When the lid sensor (83) does not output the lid opening signal (when the opened lid (11) is closed or when the lid (11) is not operated at all), the step (95) At (96), the contents of the lid determination flag (F1) are determined. When it is judged that the opened opening / closing lid (11) is closed after being opened for the set time or more, that is, when the lid determination flag (F1) is "1", the gas burner (3) has already extinguished the fire. Since it is maintained (see step (94)), proceed from step (96) to step (98) to stop the fan (F) and monitor the operation switch (84) closing (see step (101)). ). Further, when it is judged that the opened opening / closing lid (11) is closed within the set time (when the lid determination flag (F1) is "2"), the operation proceeds to step (97). The fan (F) is stopped and the burning gas burner (3) is maintained in a fire extinguishing state, and then, in step (101), the closing of the operation switch (84) is monitored. Further, when the lid determination flag (F1) is "0" and it is determined that the opening / closing lid (11) has not been opened or closed at all, the process proceeds from step (95) to step (101) as it is and the operation switch (84) is turned on. To monitor. And the operation switch (84)
If is not turned on, the control operation is returned to the step (91) for judging the opening / closing of the opening / closing lid (11).

When it is confirmed in step (101) that the operation switch (84) is turned on, if the air supply damper (6) in the circulation passage (2) is open, it is operated in step (102). And the distribution ratio adjustment damper (51) to
Turn to 5b). And then step (103)
Then, the gas burner (3) is burned, the drive motor (M1) for the stirrer (4) is operated, and further, the fan (F) arranged in the circulation passage (2) is operated. As a result, the temperature raising step (A) is started.

The distribution ratio adjusting damper (51) is arranged at the temperature raising step position (5
When the temperature raising step (A) is started in the state of being set to the position of 5b), the gas in the drying container (1) is moved by the action of the fan (F) into the gas suction port (16) → the twist rectifying plate (69). ) → Gas burner
Combustion part (31) of (3) → Flows from fan (F) to become hot air in the combustion part (31), and most of this hot air is distribution ratio adjusting damper (51)
And is returned to the drying container (1) side. Then, the hot air returned to the drying container (1) side is the hot air discharge port (18) formed on the bottom wall of the drying container (1) and the hot air guide path (68) opening to the upper part of the drying container (1). From the leak hole (681) of the drying container
It is discharged into the (1), which heats the food waste in the drying container (1). In this case, even if it is difficult to discharge hot air from the hot air discharge port (18) portion due to food waste, the hot air discharged from the leak hole (681) causes the hot air inside the drying container (1) The food waste is efficiently heated, which gradually rises in temperature. Then, in the temperature raising step (A), the distribution ratio adjusting damper (51) is set to the temperature raising step position (55b) as described above, and the exhaust circuit (21) side is almost closed. Because the heat is above the exhaust circuit
It becomes difficult to escape to the outside via (21). Therefore, the drying container
The inside of (1) is quickly heated and heated, and the heating step (A) proceeds efficiently.

Next, the drying container is burned by the gas burner (3).
When the temperature inside (1) rises to the upper limit temperature (for example, 110 ° C.), the control operation shifts to the drying step (B). Drying container
(1) When the temperature inside rises to the above upper limit temperature, the temperature sensor (81) judges the temperature to open the air supply damper (6) in half open state and keep the gas burner (3) in the extinguished state. In addition, install the distribution ratio adjustment damper (51) at the drying process position (56
Switch to position b) (see steps (104) (105)). Then, the gas circulating in the circulation passage (2) branches and flows to the exhaust circuit (21) and the downstream side of the circulation passage (2) at the branch point (29), and the distribution ratio adjusting damper ( Five
By 1), the distribution ratio of the gas supplied to the above two passages is set to an experimentally determined proper value (a value at which the highest drying efficiency is obtained). It should be noted that the air supply damper (6) is in a half-opened state because the amount of surplus gas corresponding to the suctioned air amount is obtained by sucking the outside air from the air supply port (22) into the circulation passage (2). This is because the water vapor and the gas body in the drying container (1) are positively discharged from the exhaust circuit (21) to the outside by using the surplus gas as a carrier. This accelerates the drying of the food waste.

Next, step (106) is executed to monitor that the humidity in the drying container (1) detected by the humidity sensor (82) has dropped to the set humidity. If the humidity in the drying container (1) has not dropped to the set humidity, go to step (120) (1
21) is performed and the inside of the drying container (1) has a lower limit temperature (for example, 10
When the temperature drops to 5 ℃, the gas burner (3) burns. That is, in this embodiment, steps (105) (12
By turning on / off the gas burner (3) in 1), the inside of the drying container (1) is maintained in a predetermined temperature range (temperature range of 105 ° C to 110 ° C) while intermittently burning it.

Next, it is monitored by the output of the lid sensor (83) whether or not the opening / closing lid (11) is opened until the inside of the drying container (1) is lowered to the set humidity (step (107). )). And an opening / closing lid to add additional garbage into the drying container (1).
When (11) is opened, in step (108) the air supply damper (6)
If the gas burner (3a) is in a fire extinguishing state, close it, set the distribution ratio adjustment damper (51) to the dust throwing position (57b), and set the lid monitoring timer (T1) to "0". Reset.

When the distribution ratio adjusting damper (51) is set to the dust feeding position (57b) and the air supply damper (6) is further closed, the fan (F) in the circulation passage (2) is supplied with air. Garbage inlet that is open via gas suction port (16) instead of port (22)
Since the outside air is sucked from (11a), it is possible to prevent the inconvenience that the odor in the drying container (1) leaks to the outside from the dust input port (11a).

Next, steps (109) and (110) are executed to monitor the open / closed state of the open / close lid (11) and the dry state in the drying container (1). Then, when the opening / closing lid (11) is left in the open state from when the opening / closing lid (11) is opened until the lid monitoring timer (T1) times out, the opening / closing lid (11) is the same as described above. If it is judged that the gas has been forgotten to be closed, secure the gas burner (3) in the fire extinguishing state (see steps (111) (112)). And
Furthermore, in order to remember that the open / close lid (11) is left open for a long time, set the lid determination flag (F1) to "1",
Then, the control operation is returned to step (109).

Next, when it is determined in step (109) that the opening / closing lid (11) is closed, in step (113) the lid determination flag is set.
The contents of (F1) are judged, and when the lid determination flag (F1) is not "1", that is, the lid lid (11) is closed within a short time until the lid monitoring timer (T1) expires. If so, in step (115), the air supply damper (6) is opened again and the distribution ratio adjustment damper (51) is set to the drying process position (56b). (1
Return to 06) and continue the drying operation of food waste. On the other hand, if the lid determination flag (F1) is set to "1" and it is determined that the opening / closing lid (11) is left open for a long time and then the opening / closing lid (11) is closed, step (114) ) With gas burner (3)
(The fire is extinguished in step (112)) is burnt, and then step (115) is executed in the same manner as above to control the distribution ratio adjustment damper (51) to the drying process position (56b). To do.

Next, when the food waste in the drying container (1) dries and the humidity detected by the humidity sensor (82) falls to the set humidity, the control operation shifts to the cooling step (C), and the step (106) )
Alternatively, steps (110) to (116) are executed to switch the distribution ratio adjusting damper (51) to the cooling position (58b) and keep the air supply damper (6) fully open, and further to the gas burner (3). Extinguish the fire. Then, the air supply damper (6)
A large amount of outside air flows into the circulation passageway (2) from the air supply port (22) by the fully opening operation of the dryer, and this is guided by the twist rectifying plate (69) as shown by the arrow in FIG. ) The diversion ratio adjusting damper is designed so that the diversion is made in the direction approaching the outer surface, and the diverted outside air is at the cooling position (58b).
It is guided by (51) and supplied into the drying container (1). on the other hand,
The hot gas in the drying container (1) sucked from the gas suction port (16) into the circulation passage (2) is guided to the gas burner (3) side by the twist rectifying plate (69), and the combustion part (31) ) And is guided to the exhaust circuit (21) side by the distribution ratio adjusting damper (51). That is, according to the above embodiment, by switching the distribution ratio adjusting damper (51) to the cooling position (58b), the high temperature gas in the drying container (1) is discharged to the exhaust circuit (21), while the supply air is supplied. Mouth (2
The outside air supplied from 2) is positively introduced into the drying container (1), which rapidly cools the inside of the drying container (1).

When it is confirmed in step (117) that the temperature inside the drying container (1) has dropped to the set temperature (for example, 50 ° C.), in step (118), the fan (F) for air supply and the agitator are supplied.
Stop the drying operation by turning off the drive motor (4) for (4). After that, operate the operating lever (L ₂ ) to open the bottom lid (13).
Open and open and collect the dried dust by dropping it in the collection bucket (5).

In the above embodiment, the opening / closing lid is used when the operation is stopped.
When the (11) was opened, the gas burner (3) was burned and the fan (F) was operated (see steps (91) and (92)), but the fan was kept with the gas burner (3) kept in a fire extinguished state.
Only (F) may be activated. Further, although the gas burner (3) is adopted as the heating source in the above embodiment, an electric heater may be used instead of this.

The distribution ratio adjusting damper (51) when the operation is stopped
If the opening degree of the exhaust circuit (21) is maintained at the minimum opening degree, the odor in the drying container (1) will not easily leak to the outside through the exhaust circuit (21) when the operation is stopped. In the above embodiment, when the opening of the circulation passage (2) downstream of the branch point (29) is set to the minimum opening (the distribution ratio adjusting damper (51) is set to
While maintaining (57b)), the circulation passage (2) downstream of the branch point (29) is fully closed, but the passage does not necessarily have to be fully closed. Further, in the case of FIG. 1, when the distribution ratio adjusting damper (51) is rotated to the temperature raising step position (55b) to minimize the opening of the exhaust circuit (21), the exhaust circuit (21) is completely closed. The exhaust circuit (21) is designed so that it is not closed.
May be fully closed.

In the above embodiment, the distribution ratio adjusting damper (5) provided at the branch point (29) from the circulation passage (2) to the exhaust circuit (21).
Although 1) was adopted as the opening adjustment device, opening adjustment dampers were installed separately in the circulation passage (2) and the exhaust circuit (21) downstream of the branch point (29). , This allows the exhaust circuit
The opening of (21) and the like may be adjusted separately. In this case, the opening adjusting dampers arranged in the exhaust circuit (21) and the circulation passage (2) correspond to the opening adjusting device described in the technical means.
Further, in this case, when the circulation passage (2) on the exhaust circuit (21) side or the downstream side of the branch point (29) is set to the minimum opening degree,
Circulation passage (2) or exhaust circuit (2) downstream of the branch point (29)
It is not necessary for the 1) side to have the maximum opening.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

FIG. 2 is a detailed perspective view near the distribution ratio adjusting damper (51).

FIG. 3 is an explanatory diagram of a control circuit.

FIG. 4 is a control flowchart.

FIG. 5 is a control flowchart.

FIG. 6 is a control flowchart.

FIG. 7 is an explanatory diagram of prior art.

[Explanation of symbols]

 (1) ・ ・ ・ Drying container (2) ・ ・ ・ circulation passage (3) ・ ・ ・ Gas burner

Claims (6)

[Claims] 1. A dust entrance (11) opened and closed by an opening / closing lid (11).
a) a drying container (1) provided with a), and a circulation passage (2) formed so as to circulate between the drying container (1) and the fan (F)
And a heating source for heating the circulating gas in the circulation passage (2), and an exhaust circuit (21) branch-connected to the circulation passage (2)
In the food waste treatment device, which is configured to discharge water vapor or the like generated from food waste with the heat generation of the heating source from the exhaust circuit (21), a circulation passage (2) and an exhaust circuit
A food waste processing device provided with an opening adjustment device for adjusting the opening of (21). 2. A dust inlet (11) which is opened and closed by an opening / closing lid (11).
a) a drying container (1) provided with a), and a circulation passage (2) formed so as to circulate between the drying container (1) and the fan (F)
And a heating source for heating the circulating gas in the circulation passage (2), and an exhaust circuit (21) branch-connected to the circulation passage (2)
In the food waste processing device, which is configured to discharge water vapor or the like generated from food waste with the heat generation of the heating source from the exhaust circuit (21), the exhaust circuit (2) in the circulation passage (2) At the branch point to (21), as the opening degree on the exhaust circuit (21) side increases, the opening degree of the circulation passage (2) on the downstream side of the branch point decreases so that the opening degree increases or decreases. Garbage disposal device equipped with an opening adjustment device that adjusts the reverse direction. 3. The garbage processing device according to claim 2, wherein a rotary plate type damper provided at a branch point to the exhaust circuit (21) in the circulation passage (2) is used as an opening degree adjusting device. 4. The method for controlling a food waste processing device according to claim 1, wherein the opening / closing lid (11) is opened from a branch point to the exhaust circuit (21). A method for controlling a food waste processing device, wherein an opening adjusting device is operated so that a downstream circulation passage (2) has a minimum opening. 5. The method for controlling the food waste processing apparatus according to claim 1, wherein the drying container is used after the start of operation.
(1) A method for controlling a food waste processing device, in which an opening adjustment device is operated so that the exhaust circuit (21) side has a minimum opening until the inside temperature rises to a set temperature. 6. The method for controlling a food waste processing device according to claim 1, further comprising an opening adjustment device so that the exhaust circuit (21) side has a minimum opening when the operation is stopped. A method for controlling a food waste processing device that is activated.