JP2979372B2 - Garbage disposal 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 processing apparatus, and more particularly to a garbage processing apparatus for drying garbage such as kitchen garbage generated in a kitchen or the like so that the garbage is treated to be substantially odorless.

[0002]

2. Description of the Related Art As this kind of garbage disposal apparatus, the invention of Japanese Patent Application No. 6-129241 has already been proposed. In this case, as shown in FIG. 8, a drying chamber (1) which is opened and closed by an opening / closing lid (11) and is provided with a stirrer (4) is formed in a casing (K). 1) is connected to a circulation passage (2) for circulating and heating the gas inside. In the circulation passage (2), a heating device (3) (a gas burner is adopted), a fan (F) on the upstream side thereof, and a heating device (3) located near the upstream side of the fan (F) are provided. An air supply port (22) is provided, and the air supply port (22) is configured to be opened and closed by an air supply damper (6). Further, an exhaust circuit (21) having a deodorizing device (7) branches off from the downstream side of the heating device (3) in the circulation passage (2).

In this apparatus, when an operation switch (not shown) is turned on, a heating device (3) generates heat intermittently and a drying chamber is turned on.
(1) The temperature in is maintained at the set temperature. The fan (F) is operated with the air supply damper (6) opened. Then, the gas heated by the heating device (3) is
(2) hot air discharge section (18) → drying chamber (1) → gas suction section (16) →
While circulating through the fan (F) and the heating device (3), the gas generated from the garbage at this time is heated by the heating device (3) and most of its odor components are burned off. And the heating device
The water vapor generated from the gas and garbage after being heated in (3) is discharged to the outside through the deodorizing device (7) of the exhaust circuit (21). Thereafter, when the humidity in the drying chamber (1) decreases and drying of the garbage ends, the operation is stopped and the processing operation of the garbage is completed.

However, in the above prior art,
If the lid (11) is opened to add additional garbage to the drying room (1) while the operation is stopped, the odor leaks from the garbage inlet (11a), which causes inconvenience to the user of the appliance. In addition, when the heating device (3) that generates intermittent heat even during operation is in the heat generation stop state, the odor component generated from the garbage is not heated and burned off by the heating device (3).
When the garbage is opened, the odor leaks from the garbage inlet (11a) as described above.

The present invention has been made in view of the above points, and has been made in consideration of "a drying chamber (1) having a refuse inlet (11a) opened and closed by an opening / closing lid (11); A circulation passage (2) formed to circulate between the fan and the fan (F), and a heating device (3) for circulating gas heating provided in the circulation passage (2).
And an exhaust circuit (21) branching from the downstream side of the heating device (3) and the fan (F) in the circulation passage (2) to operate the heating device (3) and the fan (F). Garbage processing device that advances the garbage drying operation
The task is to prevent odors from leaking from the garbage inlet (11a) even if 1) is opened.

[0006]

[Technical Means] The technical means of the present invention for solving the above-mentioned problems is as follows: a lid sensor (83) for outputting an open signal when the open / close lid (11) is opened; and a circulation passage (2). Fan (F)
An air supply port (22) that supplies outside air to the upstream part of the air supply and is opened and closed by an air supply damper (6) is provided, and when a lid open signal is output from a lid sensor (83), a fan (F) is provided. , And a fan control circuit and a damper control circuit for maintaining the air supply damper (6) in a fully closed state are provided. "

[0007]

The above technical means operates as follows. Drying room
When the open / close lid (11) is opened in order to add additional garbage to (1), a lid open signal is output from the lid sensor (83), and the lid open signal is applied to the fan control circuit and the damper control circuit, and
(F) is operated, and the air supply damper (6) is maintained in the fully closed state.

Then, the fan (F) in the circulation passage (2) sucks the gas in the drying chamber (1) containing the odor component, and the inside of the drying chamber (1) becomes a negative pressure state. Therefore, outside air flows into the drying chamber (1) from the open refuse inlet (11a). That is, the refuse input port (11a) is externally provided with a drying chamber (1).
A flow of air is generated that is drawn inward.

[0009]

The present invention has the following specific effects. Opening / closing lid (11)
When the refuse is opened, a flow of air that is sucked from the outside into the drying chamber (1) is generated in the refuse input port (11a), so that odor components are externally discharged through the refuse input port (11a). And the inconvenience of giving an unpleasant feeling to the user of the appliance can be prevented.

[0010]

Next, an embodiment of the present invention will be described with reference to the drawings. The basic structure of the garbage processing apparatus of the present embodiment is the same as that of the above-described prior art, and specifically has a structure as shown in FIG. The cylindrical drying chamber (1) is provided inside the casing (K) in an inclined state, and a dust inlet (11a) at the upper end thereof is covered with an openable / closable lid (11). The opening / closing lid (11) has a temperature sensor (81) for detecting the temperature and humidity in the drying chamber (1) and a humidity sensor (8).
2) is provided, and the open / close lid (11) is
The open / closed state is detected by a lid sensor (83) provided near (11a).

At the bottom of the drying chamber (1), an openable / closable bottom cover (1) is provided.
An outlet (12) covered by 3) is provided,
From (12), the processed garbage can be taken out to the collection bucket (5) below it. And the bottom lid (13)
Is an arm (L) pivotally supported on the side wall of the drying chamber (1).
₁ ), and the arm (L ₁ ) is swingable by a manually operable operating lever (L ₂ ).

In the drying chamber (1), there is provided a rotating shaft (41) arranged in a manner parallel to the central axis of the drying chamber (1) and a stirring blade (42) fixed thereto. A stirrer (4) is provided, and the stirrer (4) is configured to be rotationally driven by a drive motor (M1) mounted on the outer bottom surface of the drying chamber (1). A hot air discharge section (18) having a filter (17) is formed in a portion of the drying chamber (1) facing the discharge port (12), and the hot air discharge section (18) It is connected to a gas suction part (16), which opens in the vicinity of the refuse inlet (11a) in the chamber (1), via a circulation passage (2). A filter (160) is provided on the gas suction section (16). Filters (17) (1) are added to the gas suction section (16) and the hot air discharge section (18).
60) is covered by a drying chamber stirred by the stirrer (4).
This is to prevent dust in (1) from entering the circulation passage (2).

An air supply port (22) for taking in outside air is formed in the wall of the circulation passage (2) near the gas suction section (16). (22) is opened and closed by an air supply damper (6). Further, a fan (F) for sucking the gas in the drying chamber (1) from the gas suction part (16) is provided in the vicinity of the air supply port (22). In (2), a combustion part (31) of a gas burner (3a) as a heating device (3) faces the downstream side of the fan (F). Further, the gas circuit to the gas burner (3a) together with the gas valve (3 _b) is inserted, the passage for the circulation
An exhaust circuit (21) having a deodorizing device (7) is connected to (2) near the downstream side of the gas burner (3a). As the gas burner (3a), for example, an all-primary pneumatic burner such as an infrared burner using a ceramic plate is suitable, but a Bunsen burner may be used. As shown in FIG. 7, the air supply damper (6) has a hole (63) corresponding to the air supply port (22), and the drive motor (6).
It can be opened and closed by 2a).

The electric components such as the drive motor (M1) are shown in FIG.
As shown in (1), it is controlled by a control circuit (70) incorporating a microcomputer. The control circuit (70) includes an operation switch (84) and a stop switch (8
5) Output and lid sensor (8
The output of 3) and the outputs of a temperature sensor (81) and a humidity sensor (82) for detecting the temperature and humidity in the drying chamber (1) are applied, respectively. The gas burner gas valve (3 _b) which is inserted into the gas circuit to the (3a), an ignition device for burning said gas burner (3a)
( _3c ), a fan (F) that draws the gas in the drying chamber (1) into the circulation passage (2), a drive motor (M1) for the stirrer (4), and a supply damper (6). The operation of each of them is controlled by the output of the control circuit (70).

The microcomputer of the control circuit (70) stores a control program having the contents shown in the flowcharts of FIGS. 3 and 4. Hereinafter, the operation of the garbage processing apparatus according to the embodiment of the present invention will be described with reference to FIG. explain. First, in step (90), a lid determination flag (F1) for determining whether or not the open / close lid (11) has been opened for a long time is set to “0”.

In step (91), it is determined from the output of the lid sensor (83) whether or not the open / close lid (11) is opened. When the open / close lid (11) is opened, the air supply is performed in step (92). with use damper (6) to close the combustion of the gas burner (3a) (gas valve (3 _b) by opening actuating the ignition device (3 _c)), to operate the fan (F). When the gas burner (3a) burns and the fan (F) starts operating, the fan (F) starts operating in the drying chamber containing the odorous component.
(1) While sucking the gas inside, the odor component is
It is heated by the heating device (3) downstream of (F) and burned out. Then, part of the gas heated by the heating device (3) flows from the circulation passage (2) to the exhaust circuit (21),
It is completely deodorized by the deodorizing device (7) and then released to the outside. When the fan (F) sucks the gas in the drying chamber (1) into the circulation passage (2) as described above, the pressure in the drying chamber (1) becomes negative. Accordingly, outside air flows into the drying chamber (1) from the open refuse input port (11a), whereby odor in the drying chamber (1) is discharged from the refuse input port (11a) to the outside. No more leakage.

In step (92), a lid monitoring timer (T) for measuring the time that the opening / closing lid (11) is left open is described.
1) Set (0) the microcomputer built-in timer, close the damper (6), and set the lid determination flag (F1) to "2". Next, it is determined whether or not a set time (set to 30 seconds in this embodiment) has elapsed since the opening / closing lid (11) was opened.
Judgment is made from the output of 1) (see step (93)). If the set time has elapsed, it is judged that the opening / closing lid (11) has been forgotten to be closed, the gas burner (3a) is extinguished, and the lid determination flag (F1 ) Is set to "1" (see step (94)). The reason why the gas burner (3a) is maintained in the fire extinguishing state is to prevent a risk that the gas burner (3a) is left in a combustion state when the opening / closing lid (11) is forgotten to be closed, thereby ensuring a safe state.

Next, the control operation is returned to step (91),
If the lid sensor (83) does not output a lid opening signal (when the opened lid (11) is closed or the lid (11) is not opened at all), step (95) At (96), the contents of the lid determination flag (F1) are determined. Then, when it is determined that the opened opening / closing lid (11) is opened after being opened for the set time or more, that is, when the lid determination flag (F1) is “1”, the gas burner (3a) has already been extinguished. Since the state is maintained (refer to step (94)), the process proceeds from step (96) to step (98) to stop the fan (F), and the operation switch (8).
Monitor the input of 4) (see step (101)). When it is determined that the opened lid (11) is closed within the set time (when the lid determination flag (F1) is "2"), the process proceeds to step (97) and is in the operating state. The fan (F) is stopped, and the burning gas burner (3a) is maintained in a fire extinguishing state. Thereafter, in step (101), the turning on 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 / closed at all, the process directly proceeds from step (95) to step (101) and the operation switch (84) is turned on. To monitor. Then, the operation switch (8
If 4) has not been inserted, the control operation returns to step (91) for determining whether the open / close lid (11) is open or closed.

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, this is performed in step (102). Close. Then, in step (103), the gas burner
(3a) is burned, and the drive motor (M
1), and then the fan (F) arranged in the circulation passage (2). Thereby, the garbage processing operation starts.

When the above processing operation is started, the gas in the drying chamber (1) is moved by the action of the fan (F) to the gas suction section (16) → the fan (F) → the combustion section (31) of the gas burner (3a). The hot air flows in the combustion section (31) and is supplied from the hot air discharge section (18) on the downstream side into the drying chamber (1) to heat the garbage. Then, steam and gas are generated from the garbage in the drying chamber (1) by the heating.

Next, the drying chamber (1) is burned by burning the gas burner (3a).
When the internal temperature rises to the upper limit temperature (for example, 110 ° C),
The temperature is judged based on the output of the temperature sensor (81), the air supply damper (6) is half-opened, and the gas burner (3a) is maintained in the fire extinguishing state (see steps (104) and (105)). The air supply damper (6) is placed in a half-open state by sucking outside air from the air supply port (22) into the circulation passage (2), so that the amount of the sucked air becomes excess gas, and the excess gas is removed. This is because the steam and gas in the drying chamber (1) as the carrier are positively released from the exhaust circuit (21) to the outside. Thereby, drying of garbage is promoted.

Next, step (106) is executed, and it is monitored that the humidity in the drying chamber (1) detected by the humidity sensor (82) drops to the set humidity. If the humidity in the drying chamber (1) has not decreased to the set humidity, the steps (120) and (121)
And the inside of the drying chamber (1) is at the lower limit temperature (for example, 105 ° C).
When the temperature is lowered, the gas burner (3a) is burned. That is, in this embodiment, the gas burner (3a) is turned on and off in steps (105) and (121), so that the inside of the drying chamber (1) is heated to a predetermined temperature range (105 ° C.) while being intermittently burned. (Temperature range of ~ 110 ° C).

Next, it is monitored by the output of the lid sensor (83) whether or not the lid (11) is opened until the inside of the drying chamber (1) falls to the above set humidity (step (107)). )). Then open and close the lid (11) to add additional garbage into the drying room (1).
Is released, in step (108), the air supply damper (6) is closed, and if the gas burner (3a) is extinguished, it is burned, and the lid monitoring timer (T1) is reset to "0". .

When the air supply damper (6) is closed,
The fan (F) in the circulation passage (2) sucks outside air from the open refuse inlet (11a) in place of the air supply port (22), and therefore, the odor in the drying chamber (1) Garbage input (11
a) The inconvenience of leakage to the outside can be prevented. 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 chamber (1). If the open / close lid (11) is left open from the time when the open / close lid (11) is opened until the time of the lid monitoring timer (T1) expires, the open / close lid (11) as described above. In such a case, the gas burner (3a) is kept in a fire extinguishing state to secure a safe state (see step (112)). Then, the lid determination flag (F1) is set to "1" in order to memorize that the opening / closing lid (11) has been left open for a long time, and thereafter,
The control operation returns to step (109).

Next, when it is determined in step (109) that the open / close lid (11) is closed, the lid determination flag is determined in step (113).
The content of (F1) is determined, and if the lid determination flag (F1) is not “1”, that is, the open / close lid (11) is closed within a short time until the lid monitoring timer (T1) times out. If it is determined that the air-supply damper (6) is half-opened again in step (115), the control operation is returned to step (106) to continue the drying operation of the garbage. On the other hand, if the lid determination flag (F1) is set to "1" and it is determined that the lid (11) is closed after the lid (11) has been left open for a long time, the step (114) ), The gas burner (3a) (fire extinguished in step (112)) is burned, and then step (115) is executed in the same manner as above to return the air supply damper (6) to the half-open state.

Next, when the garbage in the drying chamber (1) dries and the humidity detected by the humidity sensor (82) decreases to the set humidity, the process proceeds from step (106) or step (110) to step (1).
The operation moves to 16), the air supply damper (6) is maintained in the fully open state, and the gas burner (3a) is extinguished. As a result, a large amount of outside air is supplied into the drying chamber (1) to cool it. When it is confirmed in step (117) that the inside of the drying chamber (1) has dropped to the set temperature (for example, 50 ° C.), in step (118), the air supply fan (F) and the stirrer (4)
The drying operation is stopped by turning off the driving motor (M1) for use.

Thereafter, the operating lever (L ₂ ) is operated to operate the bottom cover (13).
And collect the dried trash into the collection bucket (5). In the above embodiment, the gas burner (3a) is burned and the fan (F) is operated when the opening / closing lid (11) is opened when the operation is stopped (see steps (91) and (92)). Fan while keeping the gas burner (3a) extinguished
Only (F) may be activated.

Further, in the above embodiment, the gas burner (3a) is kept in the fire extinguishing state when the opening / closing lid (11) is left open for more than 30 seconds (steps (93), (94) and Steps (111) and (112)), the fan (F) may be stopped in conjunction with the extinguishing of the gas burner (3a). In this case, the functional unit in the microcomputer which executes the control for stopping the fan (F) corresponds to the fan control circuit of the fifth aspect.

The correspondence between the above embodiment and the constituent requirements of each claim is described as follows. . A function unit in the microcomputer for executing steps (91) and (92) to operate the fan (F) when the opening / closing lid (11) is opened corresponds to the fan control circuit according to claim 1. I have. . 3. The heating device according to claim 2, wherein a functional unit in the microcomputer for executing step (91) (92) or step (107) (108) for burning the gas burner (3a) when the opening / closing lid (11) is opened is a heating device according to claim 2. Corresponds to the control circuit. . The functional part in the microcomputer which executes step (91) (92) or step (107) (108) to close the air supply damper (6) when the opening / closing lid (11) is opened is described in claim 1. Corresponds to the damper control circuit. . Steps (91), (92), (93) and (9) of burning the gas burner (3a) when the opening / closing lid (11) is opened and extinguishing the gas burner (3a) if the opening / closing lid (11) is not closed for 30 seconds thereafter.
4) or a functional unit in the microcomputer that executes the steps (107), (108), (111) and (112) corresponds to the heating device control circuit according to the fourth aspect.

In the above embodiment, the temperature in the drying chamber (1) during the drying operation is controlled while intermittently burning the gas burner (3a). The present invention may be applied to a garbage dryer provided with a gas burner (3a) of the type. FIGS. 5 and 6 show control flowcharts in this case. In this case, the steps (92) and (10) described in the flowcharts of FIGS.
3) (121) (108) (114) The point that the control for burning the gas burner (3a) is adopted instead of the control for burning the gas burner (3a) (steps (92`) (103`) (121`) ( 108`) (see 114`)),
Steps (10) in the flowcharts of FIGS.
5) The control that weakly burns the gas burner (3a) instead of the control that extinguishes the gas burner (3a) in (112) (step (1)
05`) (see 112`)), the control is performed in exactly the same manner as in the previous embodiment in which the gas burner (3a) is intermittently burned. An embodiment in which the gas burner (3a) is proportionally controlled corresponds to a third aspect of the present invention. Gas burner (3
If the opening / closing lid (11) is not closed for a predetermined time after the opening / closing lid (11) is opened, the gas burner (3a) may be extinguished or the fan (F) may be stopped even if the opening / closing lid (11) is opened.

In the above embodiment, the gas suction section (16) is formed near the dust inlet (11a) of the drying chamber (1), but the hot air discharge section (18) is located near the dust inlet (11a). ), And a gas suction portion (16) may be formed near the bottom wall in the drying chamber (1). When the air supply damper (6) of the air supply port (22) is closed when the opening / closing lid (11) is opened, outside air is sucked from the garbage inlet (11a) instead of the air supply port (22). There is no change. In the above embodiment, the gas burner (3a) is used as the heating device (3), but it goes without saying that an electric heater can be used as the heating device (3).

In any of the above embodiments, the present invention is applied to the garbage disposal apparatus having the structure shown in FIG. 1 in which a gas suction section (16) is formed near the refuse inlet (11a). The present invention may be applied to the garbage disposal apparatus of FIG. 8 having a hot air discharge section (18) near the refuse inlet (11a). Fan (F)
When the opening / closing lid (11) is opened, the outside air is sucked into the drying chamber (1) from the garbage inlet (11a) because the inside of the drying chamber (1) is in a negative pressure state due to the suction force of This is because there is no difference. 8 also includes a gas burner as a heating device (3), which can burn odor components, and further includes an air supply damper (6). This is because it has a structure that can perform the same control as described above.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is a control circuit applied to an embodiment of the present invention.

FIG. 3 is a flowchart illustrating a drying operation.

FIG. 4 is a flowchart illustrating a drying operation.

FIG. 5 is a flowchart for explaining a drying operation when the gas burner (3a) is proportionally controlled.

FIG. 6 is a flowchart for explaining a drying operation when the gas burner (3a) is proportionally controlled.

FIG. 7 is a detailed view of an air supply damper (6).

FIG. 8 is an explanatory view of the prior art.

[Explanation of symbols]

 (1) ・ ・ ・ Drying room (2) ・ ・ ・ Circulation heating path (3) ・ ・ ・ Heating device (6) ・ ・ ・ Air supply damper (11) ・ ・ ・ Open / close lid (11a) ・ ・ ・ Dust Inlet (21) ・ ・ ・ Exhaust circuit (83) ・ ・ ・ Lid sensor

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-193380 (JP, A) JP-A-3-13741 (JP, A) JP-A-4-146452 (JP, A) 11829 (JP, U) JP 5-17446 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F26B 25/02 F26B 9/06

Claims (6)

(57) [Claims] 1. A refuse inlet (11) opened and closed by an opening / closing lid (11).
a) a drying chamber (1) comprising: a drying chamber (1) and a fan (F)
A circulation passage (2) formed to circulate between
A heating device (3) for heating the circulating gas provided in the circulation passage (2); and the heating device in the circulation passage (2).
(3) and an exhaust circuit branching from the downstream side of the fan (F) (21)
In the garbage processing device that operates the heating device (3) and the fan (F) to perform the garbage drying operation, a lid that issues an open signal when the open / close lid (11) is opened Sensor (83)
Supply air to the upstream of the fan (F) in the circulation passage (2) and the air supply opening (2) opened and closed by the air supply damper (6).
2), and when the lid opening signal is output from the lid sensor (83), the fan (F) is activated, and the air supply damper is used.
(6) A garbage disposal apparatus provided with a fan control circuit and a damper control circuit for maintaining the garbage in a fully closed state. 2. A garbage disposal apparatus according to claim 1, further comprising a heating device control circuit for activating the heating device when the lid opening signal is output from the lid sensor. 3. The garbage drying operation is performed while the drying chamber (1) is maintained at a predetermined temperature while operating the heating device (3) strongly or weakly when the fan (F) is operated. 2. The garbage disposal device according to claim 1, further comprising a heating device control circuit for operating the heating device in a strong state when the output is performed. 4. A lid monitoring timer (T1) for starting a timing operation when a lid opening signal is output from a lid sensor (83), and the lid monitoring timer (T1) measures the time until the measured time reaches a set time. 4. The garbage disposal apparatus according to claim 2, wherein when the lid sensor does not output a lid closing signal, the heating apparatus control circuit keeps the heating apparatus in a forced stop state. 5. If the lid sensor (83) does not output a lid closing signal until the measurement time of the lid monitoring timer (T1) reaches the set time, the fan control circuit keeps the fan (F) in a forced stop state. The garbage disposal device according to claim 4, wherein 6. A lid monitoring timer (T1) for starting a timing operation when a lid opening signal is output from the lid sensor (83), and the lid monitoring timer (T1) measures the time until the measured time reaches a set time. 2. The garbage disposal apparatus according to claim 1, wherein the fan control circuit keeps the fan (F) in a forced stop state when the lid sensor (83) does not output a lid closing signal.