JP2807865B2 - 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 to treat the garbage substantially odorless.

[0002]

2. Description of the Related Art As this kind of garbage processing apparatus, a drying chamber for stirring and drying garbage as shown in FIG. 4 has been proposed in Japanese Patent Application Laid-Open No. 5-96271. (1), a circulation passage (2) for circulating and heating the air in the drying chamber (1), a heater (H) as a heating source inserted in the circulation passage (2), and a deodorizing device ( 7) and a condenser (71) for condensing water vapor generated during the drying of garbage.The refuse input port (11a) of the drying chamber (1) has an open / close lid.
It is covered with (11).

In this apparatus, hot air heated by a heater (H) is forced by a fan (F) for forced circulation into a drying chamber (1).
→ circulates in the path of the condensing device (71) → the deodorizing device (7), the garbage in the drying chamber (1) is dried, and the odor generated during the drying is catalyzed by the deodorizing device (7). The steam generated in the drying step is further condensed and liquefied by the condensing device (71) and discharged to the drain passage,
Alternatively, it is discharged into a separately prepared storage container.

[0004] The volume of the garbage dried as described above is significantly reduced. Moreover, since it is completely dried, it can be disposed of as ordinary garbage as it is, or it may be used as a fertilizer for garden trees. As described above, according to the prior art, the garbage generated in the home can be dried, and the water vapor generated in the drying process is condensed into water and discharged. Also, the diffusion of odor is prevented.

[0005] However, this prior art not only requires a condensing device (71), but also condenses the circulating air heated by the heater (H) with the condensing device (71) to promote drying. Therefore, heating and cooling are repeated, resulting in a large energy loss. To solve the above problem, an exhaust circuit is branched and connected to a circulation passage (2) for forcibly circulating and heating the air in the drying chamber (1), and a fan is provided in the circulation passage (2). (F) and a heating source (3) may be provided so that water vapor and the like generated from garbage due to the heat generated by the heating source (3) are discharged from the exhaust circuit. That is, by discharging the steam generated from the garbage from the exhaust circuit, the above-described condenser (71) is not required to simplify the structure, and the circulation passage (2)
This prevents energy loss due to repeated heating and cooling of the circulating gas inside.

However, in the case of the above improvement,
Branch point of exhaust circuit to circulation passage (2) and heating source
(3) and the following problems will occur if the positions of the three fans (F) are not sufficiently considered. That is, in consideration of the case where the fan (F) is provided in the high heat portion in the circulation passage (2),
The fan (F) must be made of a material having high heat resistance. Further, as in the case where the discharge port of the fan (F) is directly connected to the drying chamber (1), the fan has a mode in which the gas discharging force from the circulation passage (2) to the drying chamber (1) becomes large. If (F) is installed, the circulating gas is gushes out into the drying chamber (1) vigorously.As a result, if the opening and closing lid (11) is opened during operation, the inside of the drying chamber (1) There is a fear that the odor leaks out together with the gas.

[0007] The present invention has been made in view of the above points, "a drying chamber (1) having a refuse inlet (11a) opened and closed by an opening and closing lid (11), A circulation passage (2) formed to circulate between the fan and the fan (F); a heating source (3) provided in the circulation passage (2);
(2) an exhaust passage branched and connected to the heating source;
(3) Garbage disposal device that discharges water vapor and the like generated from garbage due to the heat generation from (3) from the exhaust circuit '', specify the location of the fan (F) and the heating source (3). Accordingly, it is possible to alleviate the heat resistance requirement of the fan (F) and to suppress the odor from leaking from the opening even if the opening / closing lid (11) is opened during operation. Make it an issue.

[0008]

[Technical Means] The technical means of the present invention for solving the above-mentioned problem is that a fan (F) and a heating source (3) are provided upstream of a branch point of an exhaust passage in a circulation passage (2). Arranged in this order from the upstream side. "

[0009]

The above technical means operates as follows. Heating source
When (3) is heated and the fan (F) is operated, the gas in the drying chamber (1) is sucked into the circulation passage (2) by the suction action of the fan (F), and the gas is further discharged to the fan (F). After passing through the portion F), the heating source (3) on the downstream side heats and raises the temperature. Therefore, the gas discharged from the fan (F) is heated by the heating source (3) immediately downstream of the fan (F), and the heat generated from the heating source (3) directly acts on the fan (F). There is no. When the circulating gas is heated by the heating source (3), the odor component contained in the gas is extinguished by heating, and the excess gas corresponding to the amount of water vapor and the like generated from the garbage is removed by the heating source (3). ) Is discharged to the outside through an exhaust circuit branched from the downstream side, and the remaining gas is supplied again from the downstream end of the circulation passage (2) into the drying chamber (1) to heat and dry the garbage. .

[0010]

The present invention has the following specific effects. Fan (F)
Is located upstream of the heating source (3) in the circulation passage (2), the heat generated from the heating source (3) does not directly act on the fan (F), and the fan (F) The requirement for heat resistance for F) is eased.

Since the fan (F) is disposed upstream of the branch point of the exhaust passage in the circulation passage (2), the discharge pressure of the fan (F) is applied to the circulation passage (2) and the exhaust passage. As a result, the pressure of the gas discharged from the circulation passage (2) to the drying chamber (1) decreases. On the other hand, all the suction force of the fan (F) acts in the drying chamber (1). Therefore, the circulation passage
From (2), the suction force becomes larger than the discharge pressure of the gas acting on the drying chamber (1), and the inside of the drying chamber (1) becomes in a negative pressure state. This also makes it difficult for the odor to leak from the portion.

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the cylindrical drying chamber (1) is accommodated in the casing (K) in an inclined state, and the dust inlet (11a) at the upper end thereof can be freely opened and closed by a spindle (11b). It is covered with a pivotally supported opening / closing lid (11). Also, the opening / closing lid
(11) is provided with a temperature sensor (81) and a humidity sensor (82) for detecting the temperature and humidity in the drying chamber (1).

The bottom of the drying chamber (1) has a bottom cover (1) that can be opened and closed freely.
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 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 port (18) is formed on a wall portion of the drying chamber (1) opposite to the discharge port (12), and the hot air discharge port (18) is provided in the drying chamber (1). It is connected via a circulation passage (2) to a gas suction part (16) that opens in the vicinity of the waste inlet (11a). A punching plate (17) having a large number of through holes (17a) is covered near the upstream side of the hot air discharge port (18) in the circulation passage (2) so as to leave a ventilation opening (T). And the ventilation opening (T) is
(3a) from the portion facing the combustion section (31) from the circulation passage
(2) Slightly shifted toward the upstream side. Incidentally, a hole larger than the through hole (17a) may be formed in the punching plate (17), and the hole may be used as the ventilation opening (T). Combustion unit (31)
The main purpose of providing the punching plate (17) in the lower opposing portion of the device is to reduce the gas flow rate on the lower surface side of the combustion portion (31) to surely eliminate odor components and dust, as described later.

A punching plate (160) is provided on the gas suction portion (16) located at the upstream end of the circulation passage (2), so that the gas is stirred by the stirrer (4). This prevents dust in the drying chamber (1) from entering the circulation passage (2). An air supply port (22) for taking in outside air is formed in a wall of the circulation passage (2) near the gas suction section (16), and the air supply port (22) Is opened and closed by an air supply damper (6). As shown in FIG. 2, the air supply damper (6) has a hole (63) corresponding to the air supply port (22) and a drive motor (62).
a) It is opened and closed by. Further, a fan (F) for sucking the gas in the drying chamber (1) from the gas suction part (16) is provided near the downstream side of the air supply port (22) in the circulation air passage (2). ), And a combustion section (3a) of a gas burner (3a) as a heating source (3) is provided downstream of the fan (F).
1) is facing. Further, with the gas circuit to the gas burner (3a) is inserted the gas valve (3 _b), in the circulating passage (2) is deodorizing device at the downstream side near the gas burner (3a) ( 7) is connected to the exhaust circuit (21). 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.

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 a temperature sensor that detects the output of the operation switch (84) and the stop switch (85), and the temperature and humidity in the drying chamber (1), which are provided in the appliance operation section.
(81) and the output of the humidity sensor (82) are applied.
The gas valve (3) inserted in the gas circuit to the gas burner (3a)
_b ), an ignition device for burning the 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). Each of the drive motors (62a) has a control circuit
The operation is controlled by the output of (70).

In the above embodiment, the fan (F) is driven while the drive motor (M ₁ ) is rotated by opening the open / close lid (11), throwing garbage into the drying chamber (1), and rotating the drive motor (M ₁ ). Let the gas burner (3
Burn a). At the beginning of operation, the air supply damper is used.
The operation proceeds with (6) closed. Then, the gas in the drying chamber (1) is sucked into the circulation passage (2) from the gas suction part (16) by the fan (F) and returned to the drying chamber (1) from the hot air discharge port (18). Circulates. That is, the gas in the drying chamber (1) is supplied to the gas suction part (16) → fan (F) → gas burner (3a).
→ Circulates with hot air outlet (18) → drying room (1). Therefore, according to this garbage processing apparatus, the fan (F)
(2) is located on the upstream side of the gas burner (3a), so the heat generated by the dryer gas burner (3a)
(F), so that the fan (F) is less likely to be adversely affected by heat. Therefore, large heat resistance is not required for the fan (F). Further, the fan (F) sucks the gas in the drying chamber (1) and the inside of the drying chamber (1) tends to have a negative pressure.
When (11) is opened, the gas in the drying chamber (1) hardly leaks to the outside, so that there is less concern that the odor is diffused to the outside.

Next, in the above embodiment, a part of the circulating gas in the circulation passage (2) flowing from the fan (F) is ventilated.
In the portion (T), a passage is configured to bypass the combustion section (31) and diverge to the drying chamber (1) to restrict the amount of gas supply to the combustion section (31). Therefore, it is possible to intensively heat a limited amount of gas flowing on the lower surface side of the combustion unit (31), thereby reliably burning odor components and the like in the gas. A part of the gas after the combustion is
Exhaust gas is exhausted from (21), and the remaining gas is
It passes through the through hole (17a) of (7) and returns to the drying chamber (1) through the hot air discharge port (18). Further, the circulating gas flowing into the lower surface side of the punching plate (17) from the ventilation opening (T) is heated by the radiant heat from the gas burner (3a) passing through the punching plate (17), and then passes through the hot air discharge port (18). To the drying room (1). Thus, the heated gas and the stirrer (4)
The garbage in the drying chamber (1) is stirred and heated by the agitating action of the garbage, and steam and gaseous bodies are generated from the garbage. In the circulation path including the chamber (1) and the circulation passage (2), surplus gas is generated, and a corresponding amount of gas is discharged from the exhaust circuit (21).

While the above drying operation is continued, the temperature in the drying chamber (1) is monitored by the temperature sensor (81). When the temperature in the drying chamber (1) rises to 105 ° C., the air supply is started. The air damper (6) is maintained in a half-open state, the outside air is sucked into the circulation passage (2) from the air supply port (22), and the gas burner (3a) is
The temperature in the drying chamber (1) is controlled to 105 ° C
Maintain in the range of 110 ° C. Circulation passage from air supply port (22)
(2) The outside air is sucked into the circulation passage (2) when the outside air is sucked into the circulation passage (2) from the air supply port (22) because the amount of the suction air becomes excess gas and the total excess gas amount increases. This is because the surplus gas can be used as a carrier to positively discharge water vapor and gas in the drying chamber (1) from the exhaust circuit (21) to the outside. Thereby, drying of garbage is promoted.

When the humidity in the drying chamber (1) drops to the set humidity by continuing the drying operation, the humidity is detected by a humidity sensor (82) to extinguish the gas burner (3a) and to supply air to the air supply damper. (6) is fully opened, whereby cool air is supplied into the drying chamber (1) to cool it to a safe temperature (for example, 50 ° C.), and then the entire apparatus is stopped.

Then, the garbage in the drying chamber (1) is in a dry state containing almost no water, and as a result, the volume of the garbage state is reduced to about 1/5 to 1/10. Then, the operation lever (L ₂ ) is operated to open the bottom cover (13), and the dried refuse is collected in the lower collection bucket (5). Thereby, the garbage disposal operation is completed.

In the above embodiment, a fan mainly composed of suction pressure is used.
(F), that is, a fan (F) mainly used for gas suction and having a small discharge amount is used.
Combustion exhaust gas discharged from a) is reliably prevented from flowing back into the gas burner (3a). In other words, if a fan (F) with a large discharge capacity is used, the fan (F) will blow out the gas vigorously, thereby suppressing the combustion exhaust gas emitted from the combustion part (31) of the gas burner (3a). There is a concern that the backflow may flow into the gas burner (3a), but the backflow is surely prevented by adopting the suction pressure-based fan (F). Further, the gas is a gas burner (3a)
Before the operation to cool the inside of the drying chamber (1) by fully opening the air supply damper (6), the gas flowing through the circulation passage (2) and the gas (3a) There is less fear of leakage from the primary air port to the outside.

Although the gas burner (3a) is used as the heating source (3) in the above embodiment, an electric heater may be used instead.

[Brief description of the drawings]

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

FIG. 2 is an exploded perspective view of an air supply damper (6).

FIG. 3 is a control circuit diagram

FIG. 4 is an explanatory view of a conventional example.

[Explanation of symbols]

 (1) ・ ・ ・ Drying room (2) ・ ・ ・ Circulation passage (3) ・ ・ ・ Heating source (F) ・ ・ ・ Fan

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-49980 (JP, A) JP-A-5-57265 (JP, A) JP-A-5-302786 (JP, A) JP-A-4-49 48985 (JP, A) JP-A-3-140790 (JP, A) JP-A-5-180560 (JP, A) JP-A-5-277461 (JP, A) Japanese Utility Model Application Sho-63-19192 (JP, U) Japanese Utility Model Application Hei 5-22087 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F26B 11/16 B09B 5/00 F26B 9/06 F26B 21/00

Claims (3)

(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 source (3) provided in the circulation passage (2); and an exhaust passage branched and connected to the circulation passage (2). In a garbage disposal apparatus in which generated steam and the like are discharged from the exhaust circuit, a fan (F) and a heating source (3) are provided upstream of a branch point of the exhaust passage in the circulation passage (2). Garbage disposal equipment arranged in this order from the side. 2. An air supply port (22) for supplying outside air to the circulation passage (2) upstream of the fan (F) in the circulation passage (2).
2. The garbage disposal device according to claim 1, wherein 3. The heating source (3) is a gas burner.
Or the garbage disposal device of claim 2.