JPH09118578A - Crude refuse treating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relieve the smells discharged from a crude refuse treating device with simple constitution. SOLUTION: This crude refuse treating device is constituted to discharge gases from a reaction vessel 40 by means of a fan 22 mounted at a vent port 21 formed in the upper part of the side plate 20 of this reaction vessel 40. The device described above has at least a cover 30 installed to the side plates 20 enclosing the gap around this fan 22. This cover 30 is formed with a vent port 31 in the lower part. As a result, the gases are discharged to a low place and, therefore, the discharged smells are dissipated downward and the device is less odor than in the case the upper part of the device is ventilated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for disposing of garbage, and more specifically, for reducing the odor in an apparatus for disposing of garbage such as kitchen waste produced in a kitchen at home by aerobic fermentation decomposition. For improvement to do.

[0002]

2. Description of the Related Art Composting of raw garbage is carried out by fermenting and decomposing the organic matter in the raw garbage with the help of microorganisms.
Achieved. In this fermentation, a method of aerobic fermentation decomposition in which oxygen is given to the processed product to ferment is generally adopted, because the fermentation heat obtained during fermentation is large and the generation of a bad odor associated with fermentation is small. ing. In order to promote this aerobic fermentation, it is necessary to prepare an optimal environment for the activity of microorganisms, so the treated product should be maintained in a water condition and temperature condition within an appropriate range, and further oxygen required for fermentation should be supplied. There is a need.

For this reason, the garbage treatment apparatus has an aeration means for supplying oxygen as well as adjusting the water state in addition to a stirring means for equalizing the state of the whole treated matter put in the reaction tank. It is equipped with means.

Conventionally, as the ventilation means of the garbage disposal, a method of natural ventilation in which air that enters from the lower vent and is lightened by the heat of fermentation flows out from the upper vent (Japanese Patent Laid-Open No. 62-65992). ) Or using an exhaust fan (JP-A-1-145388) or an air pump (JP-A-5-221767), forcible ventilation is known.

Further, among these, in the refuse disposal device forcibly ventilated, the aroma is generated when the anaerobic fermentation is carried out because the aerobic fermentation decomposition is hindered by the excessive addition of the garbage. As a countermeasure, a deodorizing device that actively removes offensive odors is also provided in the exhaust path.

[0006]

However, if the deodorizing device is added to the garbage processing device, not only the cost of parts such as the deodorizing device and the assembly cost increase the initial cost, but also the replacement of the deodorizing material, etc. Running costs are also high, which is a cost disadvantage. In the case of a small-sized household garbage disposal device mainly for household use, it is extremely disadvantageous to add a deodorizing device since there is a strong demand for lowering the price.

On the other hand, instead of providing a deodorizing device, it is possible to extend the duct (exhaust pipe) to the overhead so that the natural or forcible exhaust of the exhaust is performed in the air, thereby reducing the running cost. However, it is inconvenient because the initial cost cannot be reduced and the installation work is complicated and the movement after installation is restricted.

Therefore, it is an object to devise a simple and inexpensive structure for easily reducing the odor of exhaust gas without using a deodorizing device or an exhaust stack. Another problem is to devise the arrangement of each member so that the device does not become large when the device is modified so as to reduce the exhaust odor.

The present invention has been made in order to solve the above problems, and an object thereof is to realize an apparatus for treating food waste that reduces exhaust odor with a simple structure. Also,
It is also an object of the present invention to realize a food waste processing device that reduces exhaust odor with a simple and compact structure.

[0010]

Means for Solving the Problems First and second solving means invented to solve such problems are as follows.
The configuration and operation and effect will be described below.

[First Solving Means] The garbage processing device of the first solving means (as described in claim 1 at the beginning of the application) is as follows:
In a food waste treatment device that exhausts the reaction tank with a ventilation device attached to a vent formed in the upper part of the side plate of the reaction tank, a cover attached to the side plate surrounding at least the space around the ventilation device. This cover is characterized in that a vent hole is formed in the lower portion.

[0012] In the food waste treatment device of the first means as described above, in order to promote aerobic fermentation decomposition in the reaction tank, the exhaust gas from the ventilation device is used to treat the upper part of the reaction tank, that is, the inside of the reaction tank. Venting above the object is forced, but exhaust from the ventilator is not released immediately, but through the air gap around the ventilator and out the vent through the cover. Here, since the vent hole is formed in the lower portion of the cover, the exhaust gas is discharged downward.

As a result, even if the exhaust gas from the ventilator contains the odor in the reaction tank, it is considerably thin by the time it is dissipated downward and reaches the height of the human face. Its odor is considerably reduced compared to when it is emitted directly from the device. Moreover, since a deodorizing device is not used, the running cost is low. In addition, since the air gap for the exhaust path is formed with a cover that is necessary for safety and aesthetics such as preventing fingers from getting caught in the ventilation device, it is possible to avoid adding a dedicated exhaust pipe, etc., and the cost of materials and laying work etc. The initial cost is low. Furthermore, there is no restriction on movement after installation.

Therefore, according to the present invention, it is possible to realize a food waste processing apparatus having a simple and inexpensive structure, which can easily reduce the odor of exhaust gas without using a deodorizing device or an exhaust stack.

[Second Solving Means] The garbage processing device of the second solving means (as described in claim 2 at the beginning of the application) is as follows:
Stirring in the reaction tank is performed by stirring means driven via a power transmission mechanism, and the reaction tank is evacuated by a ventilation device attached to a vent formed in an upper part of a side plate of the reaction tank. The processing device includes a cover attached to the side plate side on which the ventilation device is mounted so as to surround the space, and the cover has a vent hole formed in a lower portion, and at least the transmission mechanism and the ventilation device are It is characterized in that it is arranged in the void.

In the food waste processing apparatus of the second solving means as described above, when the exhaust air from the ventilation device is discharged downward, the odor is dissipated downward and the odor is alleviated. In addition, the transmission mechanism, together with the ventilator, is enclosed by a single cover in a common space.

This eliminates the need to provide a dedicated space for the transmission mechanism which cannot be arranged in the reaction tank,
The parts other than the reaction tank become compact. Therefore, according to the present invention, a garbage disposal device for reducing exhaust odor is provided.
It can be realized with a simple and small configuration.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION With respect to the garbage processing apparatus of the present invention achieved by the first and second solving means described above, modes for carrying out the same will be described.

[First Embodiment] In the first embodiment of the present invention, in order to carry out the above-mentioned first solving means, a vent hole is formed in the upper portion to form a side surface of the reaction tank. Both side plates, a rotary shaft that is rotatably driven in order to agitate the inside of the reaction tank by being axially supported below the vent hole or obliquely below by the both side plates in a state of being horizontally placed in the reaction tank; A garbage disposal device equipped with a ventilation device such as a fan or an air pump that is attached to one of the ventilation holes of one of the plates to exhaust the inside of the reaction tank. Equipped with a cover that is
It is characterized in that a vent is formed in the lower part.

In such a so-called horizontal axis paddle agitation method, all the vent holes of the reaction tank are provided in the upper part in order to prevent leakage of the processed material from the vent holes, and inevitably it is performed above the horizontal axis. Since it is accompanied by forced ventilation, it is an effective application target of the present invention, and requires little modification in its application.

[Second Embodiment] In the second embodiment of the present invention, in order to carry out the above-mentioned second solving means, (the exclusive space of the electrical component section is also abolished and further miniaturization is achieved). In order to achieve the above), both side plates which form a side surface of the reaction vessel with a vent hole formed in the upper part and a shaft support below the vent hole or obliquely below the vent hole by being laterally placed in the reaction tank. And a rotating shaft that is driven to rotate in order to stir the inside of the reaction tank,
A transmission mechanism for transmitting a rotational driving force from a drive source to the rotating shaft, a ventilation device such as a fan or an air pump which is attached to any one of the vent holes of the both side plates to exhaust the inside of the reaction tank, In a garbage treatment device comprising a ventilation device or an electric component part such as a power source circuit of the drive source, a ventilation hole is formed in a lower portion, and a cover is attached to the one side of the both side plates so as to surround a gap, It is characterized in that the transmission mechanism, the ventilation device, and the electrical component section are arranged in the gap.

[Third Embodiment] A third embodiment of the present invention is one of the first and second solving means and the first and second embodiments described above. The vent hole formed in the cover (for facilitating the formation with a press or the like, and in order to surely let the exhaust gas flow downward),
The left and right lower sides of the opening portion are incised and the upper side is bent so that the opening is directed downward and outward.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete configuration of an embodiment of the garbage disposal of the present invention, which is considered to be the best, will be described with reference to the drawings. FIG. 1 shows its internal structure, (a) is a sectional view as seen from the front, (b) is a right side view with a cover removed,
(C) is a figure of a cover. 2A and 2B show the external appearance of this garbage processing apparatus, wherein FIG. 2A is a plan view, FIG. 2B is a left side view, FIG. 2C is a front view, and FIG.

This apparatus is intended to homogenize the state of the reaction vessel 40 for holding the processed matter such as garbage and carrying out the aerobic fermentation decomposition reaction, and the state of the entire treated matter put in the reaction tank. The agitating means and the aeration means for supplying oxygen into the reaction tank and adjusting the water state are also provided.

The reaction tank 40 includes a left side plate 10 and a right side plate 2.
0 both side plates, a reaction tank bottom plate 41 provided with heating means such as a heater and a heat insulating means such as a heat insulating material for obtaining a temperature condition suitable for the fermentation reaction, and for putting raw garbage into the reaction tank 40 A top plate provided with an openable / closable inlet lid 45 and a power switch 27, and a front panel provided with an openable / closable outlet lid 46 for taking out composted materials such as raw garbage, and the like. It is composed of a back plate on the opposite side of and has a closed internal space. The left and right side plates 10 and 20 are made of stainless steel, and the reaction tank 40 has excellent corrosion resistance and rigidity.

The agitating means has a plurality of agitating blades 43 protruding in the radial direction in a row in the axial direction, and both ends of the agitating means are supported by bearings which are inserted substantially at the centers of both side plates 10 and 20, respectively. A rotation shaft 42 having a
The sprocket wheel 25 mounted on the end of the rotary shaft 42 protruding to the outside of the right side plate 20, the motor 44 fixed to the lower corner of the reaction tank bottom plate 41, and the outside of the right side plate 20 on the drive shaft of this motor 44. The sprocket wheel 23 mounted on the sprocket wheel 23 and the chain 24 connecting the sprocket wheels 23 and 25 together.

As a result, the rotary shaft 42 is rotatably driven in order to stir the inside of the reaction tank 40 by being axially supported by the both side plates 10 and 20 while being horizontally placed in the reaction tank 40. Sprocket wheel 23 and chain 24
The transmission mechanism including the sprocket wheel 25 and the sprocket wheel 25 transmits the rotational driving force from the motor 44 as a drive source to the rotation shaft 42. Further, in this food waste processing apparatus, stirring in the reaction tank is performed by stirring means driven via a transmission mechanism.

The ventilation means includes an air inlet 11 (vent) formed in the upper portion of the left side plate 10, that is, diagonally above the rotary shaft 42, and in the upper portion of the right side plate 20, that is, diagonally above the rotary shaft 42. The formed suction port 21 (ventilation port), the exhaust fan 22 (ventilation device) attached to the outside of the right side plate 20 at the site of this suction port 21, and the exhaust port formed in the lower part of the side cover 30. 31 (vent), and when the side cover 30 is attached to the reaction tank 40 side body from the outside of the right side plate 20, a closed space is formed between the side cover 30 and the right side plate 20. It has become so.

When the exhaust fan 22 is energized to operate, the outside air is taken into the reaction tank 40 through the intake port 11 and is exhausted through the suction port 21 and the exhaust fan 22.
Further, this exhaust gas is discharged to the outside from the exhaust port 31 after passing through the gap between the side cover 30 and the right side plate 20. As a result, this garbage processing device is provided with the side plate 20 of the reaction tank 40.
Fan 22 installed in a vent 21 formed in the upper part of the
The reaction tank 40 is evacuated by the exhaust gas, and the exhaust gas is exhausted downward.

The electrical equipment box 26 (electrical equipment part) is a power supply circuit, a circuit for switching and controlling the energization of the exhaust fan 22 according to the operation of the power supply switch 27, and about 10 after the operation according to the opening / closing operation of the inlet lid 45. A circuit for supplying electric power to the motor 44 for operation for a minute, a circuit for switching and controlling the heater energization in accordance with the outside temperature, etc. are housed. The circuit is attached to the upper outer surface of the right side plate 20 for easy maintenance. It is set up. As a result, in addition to the exhaust fan 22, this garbage processing device is provided with a transmission mechanism such as a chain 24 and an electrical box 26.
Also, it is a compact one disposed in the space between the side cover 30 and the right side plate 20.

The specific operation of the garbage processing apparatus of this embodiment will be described.

First, it is necessary to install this device at a predetermined place such as under the roof. However, by carrying this device to the predetermined place and extending a power plug (not shown) from the device to a household power outlet. Just insert it. This completes the installation work. No other complicated duct laying work is required.

Next, the charging port lid 45 is opened, and medium materials such as sawdust and rice husks are charged into the reaction tank 40 until the rotary shaft 42 is hidden and the upward stirring blades 43 are hidden about half. Although the microorganisms responsible for aerobic fermentation decomposition are naturally attached to the media and garbage as well, in order to actively perform aerobic fermentation decomposition from the beginning, the first garbage disposal equipment When using, it is desirable to positively add an appropriate amount of commercially available microorganisms. In this state, the insertion port lid 4
When 5 is closed and the power switch 27 is turned on, the exhaust fan 22 operates and the preparation is completed.

Then, when the garbage is produced by cooking in the kitchen or the like, the garbage is immediately transported to the garbage processing device and the loading port lid 45 is opened. Then, the operation of the exhaust fan 22 is stopped. Therefore, it is sufficient to put raw garbage into the reaction tank 40 through the opening below the inlet lid 45 and close the inlet lid 45. This is the only operation for inputting garbage.

When the charging port lid 45 is closed, the raw garbage processing device automatically continues the following stirring process and aeration process. That is, when the charging port lid 45 is closed, the motor 44 is energized for about 10 minutes,
The stirring blade 43 is rotationally driven at, for example, 5 rpm. Thus, the input garbage is well mixed with the medium material and the microorganisms.

Further, when the operation of the motor 44 is stopped,
The operation of the exhaust fan 22 is restarted. Then, the outside air is introduced into the reaction tank 40 having a slight negative pressure through the inlet 11 to constantly supply the air (oxygen) necessary for the aerobic fermentation decomposition (Fig. a) See A). Further, the air in the reaction tank 40 is sucked through the suction port 21 (see FIG.
From the exhaust fan 22 to the right side plate 20 and the side cover 30.
It is sent to the space between (see (a) C in FIG. 2) and finally discharged from the exhaust port 31 toward the outside under the apparatus (see (c) D). In this way, ventilation is forcibly performed, and along with this, excess water from the garbage is also removed from the reaction tank 40. When the excess water has accumulated at the bottom of the reaction tank 40, it may be drained from the drainage port 12 provided at the lower part of the left side plate 10.

Then, even when the next raw garbage comes out, the above-mentioned raw garbage feeding operation may be repeated again, and the stirring process and the aeration process described above are also performed. When the number of days elapses while repeating such operations and treatments, the raw garbage is decomposed by aerobic fermentation in the order of old age to become a compost of a fraction to a few tens, and the reaction tank 40 Collect at the bottom of the. It should be noted that a part of the medium material is composted together with the raw garbage, so when the medium material becomes insufficient, it may be added as appropriate.

In this way, the reaction tank 4 has a water content of 65 to 70% and a temperature of 20 to 40 ° and is suitable for aerobic fermentation decomposition.
When the treated product within 0 is maintained, raw garbage is composted with almost no odor. The collected compost may be taken out by opening the discharge port lid 46 and used for fertilizing or the like.

On the other hand, when the treated product in the reaction tank 40 is out of the suitable state, anaerobic fermentation is also carried out and the reaction tank 4
Odor may occur within 0. Then, this is discharged to the outside together with the exhaust gas, but in the case of this garbage processing device, the malodor is dissipated near the lower exhaust port 31 as described above.

Therefore, in this garbage processing apparatus, even if a bad odor is generated in the reaction tank, it is diluted with the outside air by the time it reaches the upper side of the apparatus, and the odor is considerably reduced.

[0041]

As is apparent from the above description, in the garbage treatment device according to the first solution of the present invention, the exhaust gas from the fan is not discharged from the upper part but from the vent hole in the lower part of the cover. By being released, there is an advantageous effect that a food waste processing device that reduces exhaust odor can be realized with a simple configuration.

Further, in the garbage disposal according to the second means of the present invention, the transmission mechanism is covered with a fan by a single cover so as to be housed in a common space, thereby reducing the smell of exhaust gas. This has an advantageous effect that the dust disposal device can be realized with a simple and compact structure.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the garbage processing device of the present invention,
It is the internal structure figure.

FIG. 2 is an external view thereof.

[Explanation of symbols]

 10 Left side plate 11 Inlet port 12 Drain port 20 Right side plate 21 Suction port 22 Exhaust fan 23 Sprocket wheel 24 Chain 25 Sprocket wheel 26 Electrical box 27 Power switch 30 Side cover 31 Exhaust port 40 Reaction tank 41 Reaction tank bottom plate 42 Rotating shaft 43 Stirring blade 44 Motor 45 Input port lid 46 Discharge port lid

Claims (2)

[Claims] 1. A garbage treatment device for exhausting the reaction tank by a ventilation device attached to a vent formed in an upper part of a side plate of the reaction tank, wherein the side plate surrounds at least a space around the ventilation device. An apparatus for treating food waste, comprising a cover attached thereto, the cover having a ventilation hole formed in a lower portion thereof. 2. The reaction tank is agitated by a stirring means driven through a transmission mechanism, and exhaust of the reaction tank is performed by a ventilation device attached to a vent formed in an upper portion of a side plate of the reaction tank. In the garbage treatment device, the cover is attached to the side plate side on which the ventilation device is mounted so as to surround the gap, and the cover has a vent hole formed in the lower portion, and at least the transmission mechanism. And a device for disposing of garbage, wherein the ventilation device is arranged in the gap.