JP2003154337A - Garbage treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garbage treatment apparatus capable of simply detecting the amount of the treated matter housed in a recovery part. SOLUTION: The garbage treatment apparatus is equipped with a treatment part for decomposing garbage to treat the same, a recovery part for recovering the decomposed treated matter and a deodorizing exhaust part for deodorizing the offensive smell from the treatment part or the recovery part to exhaust the same and further provided with a treated matter supply means for supplying the treated matter so that the center of gravity of the treated matter in a treated matter recovery equipment moves at least in a horizontal direction as the treated matter is transferred to the treated matter recovery equipment of the recovery part from the treatment tank of the treatment part to be accumulated in the treated matter recovery equipment, a revolving support means for supporting the recovery equipment at a flucrum part from below in a freely revolvable manner and revolving the recovery equipment when the center of gravity of the treated matter moves to exceed a flucrum part and a revolution detection means for detecting the revolution of the recovery equipment.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a raw material for decomposing and treating general biological waste discharged from food processing sites such as home kitchens and food factories, and further from food production sites such as fields such as vegetables. The present invention relates to a waste processing device. In particular, the present invention relates to a configuration for easily detecting the amount of processed material stored in the recovery unit.

[0002]

2. Description of the Related Art Various kinds of raw garbage processing apparatuses for decomposing raw garbage are already on the market. For example, a food waste fermentation treatment apparatus equipped with a processing unit for fermenting raw garbage, a collection unit for collecting fermented processed products, and a deodorizing exhaust unit for deodorizing and exhausting odors from the processing unit, , Is known. In this type of food waste processing apparatus, food waste is first introduced into a fermentation treatment tank of a processing unit together with a fermentation promoting material such as a fermenting bacterium. The thrown food waste is stirred by the rotary stirring claws provided in the fermentation treatment tank to promote fermentation and ripening. The fermented processed product is stored in the processed product collector of the recovery unit. Then, the final processed product is reused as fertilizer or the like.

The discharge path through which the processed product is transferred from the processing tank to the recovery device is likely to be clogged when the recovery device is filled with the processed product and overflows. Therefore, it is important to detect the discharged state of the processed product, that is, the amount of the processed product stored in the recovery device. In the past, the weight sensor including a magnet, a reed switch, and a spring provided below the collector was used to detect how much was discharged from the processing tank to the collector. According to this, since the amount of the processed product is measured only by the weight of the processed product, the density of the processed product affects the accuracy of the measurement. Further, there are problems that it is difficult to set the spring and that the reliability of the reed switch is low.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an apparatus for disposing of garbage that can easily detect the amount of the processed material stored in the recovery section.

[0005]

In order to achieve the above object, the garbage processing device of the present invention has the following configuration. That is, raw garbage provided with a processing unit for decomposing and processing raw garbage, a collecting unit for collecting the decomposed processed product, and a deodorizing exhaust unit for deodorizing and discharging the odor from the processing unit or the collecting unit. In the processing apparatus, the processed product is moved such that the center of gravity of the processed product in the recovery unit moves at least in the horizontal direction as the processed product is transferred from the processing tank of the processing unit to the processed product collector of the recovery unit and accumulated. A processed material supply means for supplying
The collector is rotatably supported from below by a fulcrum, and rotation support means for rotating the collector when the center of gravity of the processed object moves beyond the fulcrum, and detects the rotation of the collector. And a rotation detecting means.

Here, the end of the discharge passage through which the processed material is transferred from the treatment tank to the collector is located inside the collector, and the end of the discharge passage is far from the fulcrum. A hood may be extended to contribute to the simple movement of the center of gravity of the processed material in the recovery device.

Further, the portion of the side wall of the collector that is close to the fulcrum portion may be inclined outward so as to contribute to the simple movement of the center of gravity of the processed material in the collector.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The present invention comprises a processing unit for decomposing and processing raw garbage, a recovery unit for recovering the decomposed processed product, and a deodorization exhaust unit for deodorizing and exhausting odors from the processing unit or the recovery unit. It can be applied to any garbage disposal device. However, in the following, as a preferred embodiment, a typical food waste fermentation treatment apparatus will be described as an example. The configuration of the present invention can be appropriately modified without departing from the spirit of the invention.

Here, the garbage is decomposed by the fermenting bacteria in the processing section. The fermentation method has high utility value in terms of continuous operation and cost saving. However, the method for treating raw garbage is not limited to fermentation in the narrow sense of decomposing sugar by a fermenting bacterium, and various decomposition involving other microorganisms or decomposition treatment in which chemicals are deeply involved than microorganisms may be used. .

For example, microorganisms that decompose natural polymers such as starch, cellulose and chitin, and synthetic polymers such as polycaprolactone may be mixed in the fermentation bacterium. Then,
Packaging materials and containers made of degradable plastics using these polymers as raw materials are also decomposed. Therefore, it is possible to put raw garbage together in the processing section and decompose it without having to separate the garbage from the packaging material and the container.

FIGS. 1 to 3 are a partially cutaway front view, a side sectional view and a partially cutaway rear view, respectively, of a garbage disposal according to the present invention. 1. The essential components of the raw garbage fermentation processing apparatus include at least a processing section (S), a recovery section (K), and a deodorizing exhaust section (D) as its main components. The processing part (S) is a part for fermenting and ripening raw garbage to decompose it, and the recovery part (K) is a part for recovering the processed material processed in the processing part (S), and a deodorizing exhaust part ( D) is a portion for deodorizing and discharging the odor from the processing section (S) or the collecting section (K). The processed product is taken out of the device from the recovery section (K) and reused as fertilizer or the like.

2. Raw Garbage Injecting Section This raw food fermentation processing apparatus is a vertically long substantially rectangular parallelepiped in a standing posture, and a flat plate-like lid (10) is installed on the upper surface thereof so as to be openable and closable. Raw garbage is thrown in by opening the lid (10), falls freely, and is stored in the processing section (S) immediately below. The inside (11) of the lid (10) is hollow and is filled with a heat insulating material such as foamed resin.

3. Processing part (S) In the processing part (S), the raw garbage is stirred by the stirring claws (30) in the processing tank (20), whereby fermentation and ripening are promoted and processed. The odor generated during the processing is sent to the deodorizing exhaust unit (D) to be deodorized and then exhausted.
The processed material is a recovery unit (K) located below the processing tank (20).
Sent to the outside of the device.

3-1. Treatment tank (20) In the treatment tank (20), a raw garbage input port (20a) opens toward the upper lid (10), and a bottom portion (2) where the raw garbage is collected.
0b) is formed in a U shape. This bottom (20
The U-shape of b) is for coordinating with the rotation trajectory of the stirring claw (30) as clearly shown in FIG. A panel heater (22) is stretched over substantially the entire rear surface of the bottom of the processing tank (20b), and the room temperature of the processing tank (10) is heated and controlled. About room temperature, about 45-50 degreeC is suitable for fermentation aging. The treatment tank (10) is a double tank, and a hollow portion (21) is provided between the inner and outer tank walls,
It is insulated.

3-2. Stirring Claw (30) A plurality of slender thin plate-shaped stirring claws (30) are connected to the processing tank (20). The stirring claw (30) is supported by a hole provided at the center thereof, passing through the stirring claw support shaft (31). The length of the stirring claw (30) is the bottom of the processing tank (20b).
Is slightly shorter than the diameter of the arc in the U-shape. The stirring claw support shaft (31) is horizontally suspended and rotationally driven at the center position of the arc of the processing tank bottom portion (20b). With this arrangement, the garbage introduced into the treatment tank (20) will not be treated by the bottom portion (20) of the treatment tank.
It is crushed steadily between b) and the tip of the stirring claw (30).
The reason why the stirring claw (30) is rotated to stir the garbage is to crush the garbage while uniformly supplying sufficient air to the garbage and to promote heat conduction. As a result, the fermentation and ripening and drying of raw garbage are uniformly and rapidly performed. The stirring claw support shaft (31) is rotationally driven by receiving the power of the motor (35) via the transmission chain (33).

3-3. Method for fermenting and aging raw garbage Raw garbage is put into the treatment tank (20) as described above,
After being heated by a heater and stirred by a stirring claw (30), it is fermented and aged and processed. In order to ferment raw garbage, fermenting bacteria are required. Therefore, when the raw garbage is put in for the first time or when it is desired to supplement the fermenting bacteria, the auxiliary material having the fermenting bacteria attached is put into the treatment tank (20). As the auxiliary material, sawdust, zeolite, etc. to which aerobic fermentative bacteria are adhered as seed bacteria are preferable. The raw garbage is retained in the treatment tank (20) for a predetermined period such as one month, subjected to fermentation and aging treatment, and then sent to the recovery unit (K). At this time, when the semi-processed raw garbage is partially left in the treatment tank (20), the fermentation bacterium is contained in the semi-processed raw garbage. Is improved.

In order to ferment and ripen the garbage efficiently and steadily, it is preferable to adjust the environment of the treatment tank (20) and control the stirring by the stirring claw (30).

3-3-1. Environmental adjustment of the treatment tank (20) The parameters for adjusting the environment of the treatment tank (20) so that the garbage is easily fermented and matured include temperature and p.
H and the like. The temperature is controlled by a heater stretched on the back surface of the bottom portion (20b) of the treatment tank, and the pH is controlled by adding a pH adjusting agent such as lime or rice bran. An oxygen generator is added to improve the activity of the fermenting bacterium.

3-3-2. Stirring Control of Stirring Claw (30) Parameters for controlling the stirring operation by the stirring claw (30) include the content and amount of raw garbage, the water content, and the like. Depending on whether the content of raw garbage is fermentable such as meat with a high protein content or difficult to ferment such as fibrous vegetables,
The rotation speed and the number of rotations of the stirring claw (30) may be changed, or the stirring claw (30) may be replaced with another stirring claw having a different shape. The operation mode can be changed according to the degree of processing of garbage. Examples of the operation mode include a crushing operation in which raw garbage is crushed to the extent that it does not liquefy, a fermentation operation in which stirring is intermittently performed for a short time while heating, and an aging operation in which the standing time is long.

4. Collection Part (K) The processed product subjected to fermentation and aging treatment is sent to the collection part (K) located below the discharge path (42) connected to the bottom part (20b) of the processing tank. The recovery part (K) is provided with a box-shaped processed material recovery device (40) for accommodating the processed material falling from the discharge path (42). The treated product collector (40) is a treated product discharge port (41) opened on the surface of the garbage fermentation treatment device.
It is installed so that it can be pulled out freely. As a result, the processed material filled in the recovery device (40) is discharged to the outside of the device and reused as fertilizer or the like.

5. Deodorizing Exhaust Portion (D) The odor generated during the fermentation aging process is sent to the deodorizing exhaust portion (D) to be deodorized and then exhausted. Deodorizing exhaust unit (D)
Is composed of a deodorizing case (60) for deodorizing and discharging the odor, and an odor guide duct (50) for connecting the garbage processing tank (20) to the deodorizing case (60). An odor guide duct may be attached to connect the treated product collector (40) of the recovery unit (K) and the deodorization case (60) so that the odor from the recovery unit (K) is also deodorized.

5-1. Odor guide duct (50) A wide exhaust port (5
1) is equipped with a mesh and a filter (not shown) and is open. The upstream end (50a) of the odor guide duct (50) is connected to the exhaust port (51). An upstream exhaust fan (52) is provided at an upstream portion of the odor guide duct (50).
Is provided and contributes to the air supply from the garbage disposal tank (20) to the odor guide duct (50). Odor guide duct (5
0) is its upstream end (50
The cross-sectional area decreases as it goes downward from a). Then, the downstream end (50b) is connected to the duct connection port (71) of the ceiling wall of the deodorizing case (60).

5-2. Deodorization Case (60) The deodorization case (60) has a horizontally long, substantially box-like shape, and is connected to the other end of the duct connection port (71), which is the end to which the downstream end (50b) of the odor guide duct is connected. 81) is open. The odor flowing from the odor guide duct (50) flows in the deodorization case (60) from the duct connection port (71) toward the exhaust port (81). A thermal catalyst (76) is arranged in the central portion of the deodorizing case (60) corresponding to the middle stream portion thereof. In the deodorization case (60), this thermal catalyst (76)
Is divided into an upstream deodorizing space (70) and a downstream exhaust space (80). In addition, deodorizing case (6
0) Open the flat cover (61) that contributes to cleaning, etc.
However, it is detachably attached to the surface of the garbage disposal.

5-2-1. Deodorization space (70) In the deodorization space (70), a dust storage unit (72) for storing dust that has flowed in together with odor from the odor guide duct (50).
And a deodorizer (75) and a thermal catalyst (76) for deodorizing odors
Equipped with.

5-2-1-1. Dust storage section (72) Deodorization case (60) downstream from the duct connection port (71)
Indicates that the cross-sectional area of the odor passage is the odor guide duct (3
Greater than 2). Therefore, the odor guide duct (50)
The dust that has flowed in from the free fall in the deodorization space (70) as the odorous airflow is diffused and slowed down, and the deodorization case (6
0) Deposit in the dust storage section (72) at the bottom. Since the dust is prevented from flowing into the exhaust space (80) by the thermal catalyst (76), it is reliably retained in the dust storage section (72) on the upstream side thereof and prevented from being discharged to the outside of the device. It

5-2-1-2. Deodorizer (75) An ozone generator is attached to the upper part of the upstream side wall of the deodorization space (70) as a deodorizer (75) for deodorizing odors. At the bottom of the deodorizing case (60) near the ozone generator (75), an outside air inflow passage forming plate (73) stands up to the vicinity of the ceiling wall of the deodorizing case (60). Then, the deodorizing case (6) near the lower part of the ozone generator (75)
0) The outside air intake (74) is opened in the side wall. Therefore, the outside air flowing in from the outside air intake (74) rises in the space between the side wall of the deodorizing case (60) and the outside air inflow passage forming plate (73), and passes near the ozone generator (75). After mixing with ozone, downstream duct connection port (71)
It is sent to the bottom. Here, the odor flowing from the duct connection port (71) is deodorized by ozone.

5-2-1-3. Thermal catalyst (76) The residual odorous gas deodorized with ozone in the deodorizing space (70) passes through the thermal catalyst (76) and is sent to the exhaust space (80). As the thermal catalyst (76), a powder obtained by firing powder of iron oxide and manganese oxide into a honeycomb shape having a large surface area can be used. The residual odor is brought into contact with the honeycomb to be oxidized and deodorized. The thermal catalyst (76) functions at a high rate 20
It is heated to about 0 ° C. Since ozone is reduced to oxygen when oxidizing odor, it is prevented from flowing out to the exhaust space (80) and being discharged to the outside of the device.

As means for heating the thermal catalyst (76),
As shown in FIG. 3, a heater is attached as a heating element (77). The heating element (77) is arranged at a slightly lower position on the upstream side of the thermal catalyst (76). Such a heating element (7
By using 7), the thermal catalyst (76) can be effectively heated with a simple and inexpensive structure. The heating element (77)
It may be bent in a planar shape such as a U shape, a W shape, or a spiral shape, and may be installed so as to face the thermal catalyst (76), thereby increasing the heat dissipation area and contributing to efficient heating. The temperature sensors (77s) (76s) that contribute to the temperature control of the heating element (77) and the thermal catalyst (76) are installed near the downstream sides of the heating element (77) and the thermal catalyst (76), respectively.

The thermal catalyst (76) may be a self-heating type catalyst. For example, if electrodes are provided so that electricity can be applied to a ceramic obtained by adding electrothermal metal powder to a ceramic containing a catalyst, it contributes to precise temperature control and space saving.

5-2-2. Exhaust space (80) The exhaust gas from which the residual odor has been deodorized by the thermal catalyst (76) is sent to the exhaust space (80). An exhaust port (81) is opened at the downstream end of the exhaust space (80), and a downstream exhaust fan (82) is installed as an exhaust unit. The exhaust action of the downstream exhaust fan (82) forms an airflow path from the processing section (S) to the outside of the apparatus via the deodorizing exhaust section (D).

The deodorizing and exhausting action is performed by the ozone generator (7
5) Ozone generation amount and the upstream and downstream exhaust fans (52) (8
It is adjusted by the rotation speed of 2).

6. The present invention, in the food waste fermentation treatment apparatus as described above, the present invention,
It has been improved so that the amount of the processed material stored in the recovery unit (40) of the recovery unit (K) can be easily detected.

FIG. 4 is a front view showing the periphery of the recovery unit (40) showing an embodiment according to the present invention. The discharge passage (42) through which the processed material is transferred from the treatment tank (20) to the recovery device (40) is arranged substantially above the center of the recovery device (40), and the end portion thereof is recovered. It is located inside the vessel (40). Further, at the end of the discharge path (42), a hood (42a) is provided at a part on one side far from the fulcrum (43).
Has been extended.

The fulcrum portion (43) is a member for supporting the lower surface of the collector (40) from below. The fulcrum portion (43) has a curved upper surface, such as a round bar, and has a collecting device (40).
Since it is not fixed to the collector, the collector (40) is rotatable in the direction of the arrow in the figure. Further, the fulcrum portion (43) is arranged not near directly below the center of the collector (40) but in a position near the sensor (44). Sensors (44)
Can use a touch sensor or the like, and the rotation is detected by the lower end of the rotated collector (40).

A sensor (44) for the fulcrum (43)
On the lower surface of the collecting device (40) opposite to the collecting device (4),
0) is supported from the bottom, and a substantially plate-shaped support (45) is installed. Therefore, normally, the recovery device (40) is held horizontally by the support body (45) and the fulcrum portion (43).

As shown in FIG. 4 (a), the processing tank (20)
When a small amount of the processed product is stored in, the horizontal position of the center of gravity of the processed product is between the support (45) and the fulcrum (43). Therefore, the recovery device (40) is stably held horizontally by the support body (45) and the fulcrum portion (43).

However, as shown in FIG. 4B, when a large amount of the processed material is stored in the processing tank (20), the top of the processed material is the hood (42a) at the end of the discharge path (42).
Reach The distal end of the discharge passage (42) has a hood (42
Because of a), since the fulcrum portion (43) and the sensor (44) are opened to the side where the fulcrum portion (43) and the sensor (44) are located, the processed material is fulcrum portion (43).
And the sensor (44) is guided in one direction. When the horizontal position of the center of gravity of the processed product exceeds the fulcrum portion (43), the collector (40) rotates about the fulcrum portion (43) in the direction of the sensor (44). This embodiment has the advantage that it is only necessary to change the shape of the end portion of the discharge path (42). In addition, since a substantially plate-shaped fall prevention member (46) is installed below the sensor (44), the collector (40) is prevented from being supported and rotating too much.

As described above, the rotation support means for rotating the collector (40) when the center of gravity of the processed material moves and exceeds the fulcrum (43), and the processed material is transferred to the collector (40). And a time for detecting the rotation of the collector (40) and a processed material supply means for supplying the processed material so that the center of gravity of the processed object in the collector (40) moves at least in the horizontal direction. Since it has the motion detecting means, it is possible to easily detect the storage amount of the processed material.

FIG. 5 is an explanatory front view of the periphery of the collecting device (40) of another embodiment. This embodiment is different from the above embodiment in the configuration of the center-of-gravity moving means for horizontally moving the center of gravity of the processed material in the recovery unit (40). That is, the side wall (40a) of the collector (40) was modified in place of providing the hood (42a) at the end of the discharge passage (42) in the above-mentioned embodiment. The side wall (4) located near the fulcrum (43)
0a) was tilted outward as shown. Then, the processed products stored in the processing tank (20) are biased and accumulated near the side wall (40a). Therefore, the center of gravity of the object to be processed gradually moves toward the side wall (40a), and when it exceeds the fulcrum part (43), the recovery unit (40) becomes fulcrum part (43).
Rotate in the direction of the sensor (44) around the axis. This embodiment has the advantage that it is only necessary to change the shape of the side wall of the collector (40).

[0040]

EFFECTS OF THE INVENTION The present invention has the following effects by having the above configuration. According to the garbage processing device of claim 1, as the processed material is transferred from the processing tank to the collecting device, the center of gravity of the processing product in the collecting device moves horizontally, and the collecting device rotates. Therefore, it is possible to easily detect the amount of the processed material stored in the recovery device.

According to the garbage disposal device of the second aspect, the hood is extended at a position far from the fulcrum of the end portion of the discharge path, so that the center of gravity of the processed material in the recovery device can be easily moved. You can

According to the third aspect of the present invention, since the portion of the side wall of the collector that is close to the fulcrum is inclined outward, the center of gravity of the processed material in the collector can be easily moved. You can

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a device of the present invention.

FIG. 2 is a side sectional view of the same.

FIG. 3 is a partially cutaway rear view of the same.

FIG. 4 is a front explanatory view showing the periphery of the recovery device.

FIG. 5 is a front explanatory view of another embodiment of the present invention.

[Explanation of symbols]

S processing unit K Recovery Department D deodorizing exhaust unit 10 lid 11 Hollow part 12 open / close support shaft 13 Toride 20 treatment tanks 20a input port 20b bottom 21 Hollow part 22 panel heater 23 Side wall 30 stirring claws 31 stirring claw support 32, 34 sprockets 33 transmission chain 35 motor 40 Processed material collector 40a side wall 41 Disposal outlet 42 discharge path 42a hood 43 fulcrum 44 sensor 45 Support 46 Fall prevention body 50 Odor guide duct 50a Upstream end of odor guide duct 50b Downstream end of odor guide duct 51 Exhaust port 52 Upstream exhaust fan 60 deodorizing case 61 Deodorizing case cover 70 Deodorizing space 71 Duct connection port 72 Dust storage section 73 Outside air inflow passage forming plate 74 Outside air intake 75 deodorizer 76 thermal catalyst 76s thermal catalyst temperature sensor 77 Heating element 77s heating element temperature sensor 80 exhaust space 81 Exhaust port 82 Downstream exhaust fan

Claims (3)

[Claims] 1. A processing part for decomposing and processing raw garbage, a recovery part for recovering the decomposed processed material, and a deodorizing exhaust part for deodorizing and discharging the odor from the processing part or the recovery part. In the garbage treatment equipment, the center of gravity of the processed material in the recovery unit moves at least in the horizontal direction as the processed material is transferred from the processing tank of the processing unit to the processed material recovery unit of the recovery unit and accumulated. A rotation means for rotatably supporting the treatment product supply means for supplying the treatment product and the recovery device from below by a fulcrum part, and rotating the recovery device when the center of gravity of the treatment product moves and exceeds the fulcrum part. An apparatus for treating garbage according to claim 1, comprising support means and rotation detection means for detecting rotation of the collector. 2. The end of the discharge passage through which the processed material is transferred from the treatment tank to the collector is located inside the collector, and the end of the discharge passage is located far from the fulcrum. The garbage disposal according to claim 1, further comprising a hood. 3. The garbage treatment device according to claim 1, wherein a portion of the side wall of the collector that is close to the fulcrum portion is inclined outward.