JP7381152B1 - waste treatment equipment - Google Patents

Abstract

[Problem] The burden of maintenance can be reduced. [Solution] A waste treatment device 1 includes a fermenter 10 as a processing tank for decomposing waste with microorganisms, an exhaust section 71 for releasing exhaust gas from the fermenter 10 into the atmosphere, and an exhaust section 71 for discharging exhaust gas from the fermenter 10 to the atmosphere. is provided in the exhaust passage communicating with the exhaust section 71, and the colliding body 53 that moves within the closed space 55 due to the exhaust flow from the exhaust section 71 causes the dust contained in the exhaust gas from the fermenter 10 to fall and prevents the passage of the dust. A blocking section 50 is provided. [Selection diagram] Figure 5

Description

The present invention relates to a waste treatment device that reduces the volume and weight of food waste such as kitchen garbage and organic waste such as livestock excrement through fermentation and decomposition processing using microorganisms or drying, and in particular can reduce the burden of maintenance. This relates to waste treatment equipment.

In recent years, from the perspective of reducing environmental impact, efforts have been made to reduce the amount of incineration of food waste such as kitchen garbage and reduce carbon dioxide emissions. As the cost of treating food waste as industrial waste is also increasing, it is important to reuse food waste, for example, by fermenting food waste with microorganisms and decomposing it, and then creating a residue after the decomposition process. There is strong interest in the use of food waste as compost, soil activators, etc., that is, in recycling the decomposition residues of food waste and the like as recyclable resources.

Therefore, conventionally, a composting device (composter) is known that ferments food waste such as kitchen garbage or waste such as animal feces using microorganisms, decomposes it, and composts it. This composting device is generally equipped with a fermentation device that ferments and decomposes organic matter in waste using microorganisms, and a deodorization device that deodorizes the exhaust gas generated by fermentation in the fermentation device. The exhaust gas is sent to a deodorizing device where it is deodorized and then released into the atmosphere.
Here, in a composting device that uses microorganisms to ferment and decompose food waste such as food waste and waste such as animal manure, waste is put into fermentation to promote fermentation and decomposition of waste. Air is forced into the tank.

However, when air is pumped into the fermenter, the fermentation and decomposition and drying of the waste are promoted, along with the stirring of the waste inside the fermenter. By blowing air onto the waste, dust from the waste being fermented and decomposed in the fermenter tends to fly up. In particular, since it is difficult to control the content and moisture content of waste to be decomposed, excessive air is added to waste whose contents and moisture content fluctuate in order to prevent poor fermentation (poor decomposition treatment) and odor. This tends to promote fermentation and drying, which tends to generate dust. For this reason, dust is easily scattered from the fermenter and contained in the exhaust air, and when it is sent directly to the deodorizing equipment, for example, if the deodorizing equipment uses activated carbon, etc., a load is placed on the deodorizing equipment. This will adversely affect operation and reduce deodorizing efficiency.
Therefore, conventionally, a dust collector is provided on the way to send the exhaust gas from the fermenter to the deodorizing device. For example, in Patent Document 1, a cyclone type dust collector is proposed as a dust collector installed in the middle of an exhaust gas passage that sends exhaust gas from a fermenter to a deodorizing device.

Japanese Patent Application Publication No. 2001-106587

However, in the case of a cyclone type dust collector as disclosed in Patent Document 1, it is difficult to adjust the balance of exhaust and intake air to obtain good dust collection efficiency, making the device complicated and requiring high equipment investment costs. Moreover, when the exhaust gas introduced into the dust collector is cooled by a heat exchanger, the exhaust gas condenses in the heat exchanger, and the condensed water is recovered together with the dust contained in the exhaust gas. This requires wastewater treatment and mud removal treatment to drain the dust and wastewater outside, making it more time-consuming and costly.

On the other hand, as a low-cost dust collecting device, there is also a method of providing a filtration type bag filter, for example, a cylindrical pleated filter, and collecting dust with the filter. However, when dust is collected using a cylindrical pleated filter that ventilates from the outside to the inside, the filter is easily clogged and the dust collection power decreases, making it difficult to clean the filter frequently. Maintenance requires a lot of effort and cost as it is necessary to clean the filter and replace the filter.

Therefore, an object of the present invention is to provide a waste treatment device that can reduce the burden of maintenance.

The waste treatment apparatus of the invention according to claim 1 includes: a treatment tank that decomposes waste with microorganisms or performs volume reduction/reduction treatment by drying; an exhaust section that discharges exhaust gas from the treatment tank into the atmosphere; The exhaust passage from the tank is provided in an exhaust passage communicating with the exhaust part to form a closed space of a predetermined volume, and the closed space accommodates an impactor that moves within the closed space due to the exhaust flow from the processing tank, The apparatus further includes a blocking part that causes dust contained in the exhaust gas from the processing tank to fall by the collision body and prevents the dust from passing through.

The above-mentioned processing tank is a container (fermenter tank) in which waste is stored and the stored waste is subjected to fermentation and decomposition processing, or a container in which the stored waste is dried with hot air, and usually has an air supply port. and an exhaust port for ventilation during waste disposal.
The above-mentioned exhaust part is a part that discharges the air (exhaust gas) discharged from the treatment tank into the atmosphere, and is usually installed or connected to a deodorizing device to remove odor components contained in the exhaust gas from the treatment tank. It is removed by a deodorizing device, and the exhaust gas from the treatment tank is deodorized and released into the atmosphere.

The blocking section is provided in an exhaust passage through which exhaust gas from the processing tank communicates with the exhaust section, and has a collision body that is housed in a closed space of a predetermined volume and moves within the closed space by the exhaust flow from the processing tank. Although ventilation is allowed from the processing tank to the exhaust section, the dust in the exhaust from the processing tank is dropped by the colliding body, thereby preventing the dust from passing through.
A plurality of the above-mentioned colliding bodies are normally housed in the closed space of the blocking part, and it is sufficient that they can be moved around in the closed space of the blocking part by the exhaust flow from the processing tank. By moving around in the closed space, it collides with dust contained in the exhaust gas from the treatment tank and causes the dust to fall, or collides with the inner surface of the closed space and causes damage to the inner surface due to contact with the dust or the vibration of the collision. This is to make dust that has adhered to the surface fall.
Note that the above-mentioned closed space only needs to be closed so that the colliding body does not come out, and an opening (vent) that prevents the colliding body from coming out is permitted.

The blocking part of the waste treatment apparatus according to the invention of claim 2 covers an exhaust port provided on the upper side of the processing tank, and allows the dust contained in the exhaust gas to fall and return it to the processing tank from the exhaust port. be.
For example, when the exhaust port of the processing tank is provided on the upper surface of the processing tank, dropping the dust contained in the exhaust gas from the blocking section and returning it to the processing tank from the exhaust port means The exhaust gas that rises from the exhaust port flows into the blocking part that covers the exhaust port of the processing tank, but the blocking part prevents the passage of dust contained in the exhaust gas, causing it to fall from above to the bottom and enter the processing tank. It is returned to the processing tank from the exhaust port on the top surface, and if the processing tank exhaust port is provided on one side of the processing tank, the air is returned to the processing tank below in the blocking part toward the processing tank exhaust port. By providing a slope section that slopes downward, the flow flows into the blocking section that covers the exhaust port of the processing tank, but the blocking section prevents the passage of dust contained in the exhaust gas, causing it to fall and fall into the processing tank. Dust is guided toward the exhaust port by a slope section on the side surface of the tank that slopes downward toward the exhaust port, and is returned from the exhaust port to the treatment tank. The blocking portion may be installed on the upper surface side of the processing tank, or may be installed above the side surface side of the processing tank.

In the waste treatment apparatus according to the third aspect of the invention, the blocking section includes a filter for filtering the dust.
The above-mentioned filtration filter may be any filter that can increase the dust removal rate and reduce the load on the deodorizing device usually installed downstream (exhaust section side), such as cotton, wool, natural fiber, synthetic fiber, etc. Materials such as glass fiber and metal are used.

The blocking part of the waste treatment apparatus according to the invention of claim 4 has a bag-shaped filter cloth that filters the dust, and the collision body is inside the bag of the bag-shaped filter cloth that forms the closed space. The exhaust gas from the processing tank is vented from the inner surface to the outer surface of the bag-shaped filter cloth.
The above-mentioned filter cloth may be any material as long as it can increase the dust removal rate and reduce the load on the deodorizing device usually installed on the exhaust side on the downstream side, and may be woven or non-woven fabric. Good too.

In the waste treatment apparatus according to the fifth aspect of the invention, the collision body has a spherical shape.
The above-mentioned spherical shape is sufficient as long as the overall shape of the colliding body is approximately spherical, and may be approximately spherical, approximately ellipsoidal, and even spherical as a whole. is not required, and a portion of the outer surface may be flat.

The collision body of the waste treatment apparatus according to the invention of claim 6 has a gap space.
The above-mentioned collision body having a gap space means that ventilation is allowed, and may have, for example, a network structure, a porous structure, or a lattice shape.

The waste treatment apparatus according to the invention according to claim 7 includes: a treatment tank that decomposes waste with microorganisms or performs volume reduction/reduction treatment by drying; an exhaust section that discharges exhaust gas from the treatment tank to the atmosphere; A filtration filter is provided in an exhaust passage through which exhaust air from the tank communicates with the exhaust part, and allows the exhaust air from the processing tank to pass from the inner surface to the outer surface, thereby preventing the passage of dust contained in the exhaust gas from the processing tank. The filter includes a blocking portion having a vertically downwardly facing inner surface for blocking the passage of the dust.

The above-mentioned processing tank is a container (fermenter tank) in which waste is stored and the stored waste is subjected to fermentation and decomposition processing, or a container in which the stored waste is dried with hot air, and usually has an air supply port. and an exhaust port for ventilation during waste disposal.
The above-mentioned exhaust part is a part that discharges the air (exhaust gas) discharged from the treatment tank into the atmosphere, and is usually installed or connected to a deodorizing device to remove odor components contained in the exhaust gas from the treatment tank. It is removed by a deodorizing device, and the exhaust gas from the treatment tank is deodorized and released into the atmosphere.

The blocking section is provided in an exhaust passage through which exhaust gas from the processing tank communicates with the exhaust section, and has a filtration filter that allows the exhaust gas from the processing tank to pass from the inner surface to the outer surface. However, the filter prevents the passage of dust in the exhaust gas through filtration, and the filter has a vertically downward facing inner surface that prevents the passage of the dust.

The blocking portion of the waste treatment apparatus according to the invention of claim 7 is such that the bag-shaped filter cloth as the filtration filter is placed over the exhaust port provided on the upper side of the processing tank, and the inside of the bag-shaped filter cloth is The dust contained in the exhaust gas that has flowed into the chamber is dropped and returned to the processing tank through the exhaust port.
For example, when the exhaust port of the processing tank is provided on the upper surface of the processing tank, dropping the dust contained in the exhaust gas from the blocking section and returning it to the processing tank from the exhaust port means By placing the filter cloth over the exhaust port with the opening side facing downward, the exhaust gas rising from the exhaust port of the processing tank will flow into the bag-shaped filter cloth bag placed over the exhaust port of the processing tank. The vertically downward facing inner surface of the filter cloth prevents the dust contained in the exhaust from passing through, allowing it to fall from above to below and return to the processing tank through the exhaust port on the top of the processing tank. If the exhaust port is provided on the side surface of the processing tank, a sloped section that slopes downward toward the processing tank exhaust port can be provided on the lower side of the bag-shaped filter cloth to prevent the exhaust from the processing tank. Dust contained in the exhaust air flows into the bag-like filter cloth bag that is placed over the mouth, but the vertically downward facing inner surface of the bag-like filter cloth prevents the dust contained in the exhaust from passing through, and it falls due to its own weight, causing it to fall to the side of the processing tank. Dust is guided toward the exhaust port by the slope portion that slopes downward toward the exhaust port, and is returned from the exhaust port to the processing tank.
Note that the above-mentioned upper side of the processing tank may be the upper surface side of the processing tank, or may be the left and right side sides, and the bag-shaped filter cloth may be provided on the upper surface side of the processing tank, It may be provided above the side surface of the processing tank.

According to the waste treatment apparatus of the invention of claim 1, an exhaust gas that communicates between a treatment tank in which waste is decomposed by microorganisms or subjected to volume reduction treatment by drying and an exhaust section that discharges exhaust gas from the treatment tank to the atmosphere. The passage is provided with a blocking part that blocks the passage of dust contained in the exhaust gas from the processing tank, and the blocking part accommodates an impactor that is moved by the exhaust flow from the processing tank in a closed space, and the blocking part prevents the passage of dust contained in the exhaust gas from the processing tank. The dust is caused to fall by the colliding body moving within the closed space.
That is, an impactor housed in the closed space of the blocking part and moving in the closed space by the exhaust flow from the processing tank collides with the dust floating in the exhaust from the processing tank to cause the dust to fall; By causing the colliding body to collide with the inner surface of a closed space of a predetermined volume that accommodates the colliding body, dust adhering thereto is dropped.
Therefore, since the dust contained in the exhaust air from the treatment tank is caused to fall by the collision body of the blocking part, it is possible to return the fallen dust to the treatment tank or collect it at the point where it falls. Become. Therefore, since dust is not collected on the filter, or even if a filter is provided in the blocking part, it is difficult to collect dust on the filter, so that the burden of maintenance can be reduced.

According to the waste treatment apparatus of the invention according to claim 2, the blocking section covers an exhaust port provided above the processing tank, and causes dust contained in the exhaust to fall and return to the processing tank from the exhaust port. Therefore, in addition to the effect described in claim 1, there is no need for a separate work to collect the fallen dust.

According to the waste treatment apparatus of the invention according to claim 3, since the blocking section has a filtration filter that filters the dust, in addition to the effect described in claim 1, the dust removal rate is increased and the downstream side This makes it possible to reduce the load on the deodorizing equipment installed in the deodorizing equipment.

According to the waste treatment apparatus of the invention according to claim 4, the blocking section has a bag-shaped filter cloth that filters the dust, and the exhaust from the treatment tank is directed from the inner surface of the bag-shaped filter cloth. Since ventilation is provided to the outside surface side and the colliding body is accommodated in the bag of the bag-shaped filter cloth, in addition to the effect described in claim 1, the dust removal rate is increased and the deodorizing device provided on the downstream side It becomes possible to reduce the load on

According to the waste treatment apparatus according to the fifth aspect of the present invention, since the collision body is spherical, it can easily move around in the closed space of the blocking part by the exhaust flow from the treatment tank. Therefore, in addition to the effect described in claim 1, the effect of dropping dust can be increased.

According to the waste treatment apparatus of the invention according to claim 6, since the collision body has a gap space, it is lightweight and has a structure that allows air circulation, so that the exhaust flow from the treatment tank can fill the closed space of the blocking part. It is easy to move around inside. Therefore, in addition to the effect described in claim 1, the effect of dropping dust can be increased.

According to the waste treatment apparatus of the invention of claim 7, the exhaust passage communicates the treatment tank in which waste is decomposed by microorganisms or the waste is subjected to volume reduction treatment by drying, and the exhaust section which discharges the exhaust gas from the treatment tank to the atmosphere. is provided with a blocking part that blocks the passage of dust contained in the exhaust gas from the processing tank, and the blocking part has a filtration filter, and allows ventilation from the inner surface side of the filtration filter to the outer surface side of the filtration filter. has a vertically downwardly facing inner surface that prevents the passage of the dust.
Therefore, the vertically downward inner surface of the filtration filter prevents the rising dust in the exhaust gas, allowing the dust to fall under its own weight, making it difficult for the dust to accumulate on the filtration filter. Therefore, the burden of maintenance can be reduced.

According to the waste treatment apparatus of the invention according to claim 7 , the blocking part is configured such that a bag-shaped filter cloth serving as the filtration filter is placed over an exhaust port provided on the upper side of the treatment tank, and the prevention part prevents dust contained in the exhaust gas from being removed. is dropped and returned to the processing tank through the exhaust port. In other words, although the exhaust air from the exhaust port of the processing tank flows into the bag-like filter cloth bag placed over the exhaust port of the processing tank, the dust contained in the exhaust gas flows from the inner surface of the bag-like filter cloth to the outer surface. Since the particles are prevented from passing to the side, they fall inside the bag and are returned to the processing tank through the exhaust port. Therefore , there is no need to separately collect the fallen dust.

FIG. 1 is a schematic configuration diagram illustrating a waste treatment apparatus according to Embodiment 1 of the present invention, viewed from one side. FIG. 2 is a schematic configuration diagram illustrating the waste treatment apparatus according to Embodiment 1 of the present invention, viewed from another side. FIG. 3 is a schematic configuration diagram illustrating the configuration of the blocking section of the waste treatment apparatus according to Embodiment 1 of the present invention. FIG. 4(a) is an explanatory diagram illustrating the blocking part in a state where exhaust is being performed from the fermenter of the waste treatment apparatus according to Embodiment 1 of the present invention, and FIG. FIG. 2 is an explanatory diagram illustrating a blocking section in a state where exhaust from the fermenter of the waste treatment apparatus according to Embodiment 1 is stopped; FIG. 5 is a perspective perspective view illustrating the blocking section of the waste treatment apparatus according to Embodiment 1 of the present invention. FIG. 6 is a perspective perspective view illustrating another example of the bag-shaped filter cloth of the blocking section of the waste treatment apparatus according to Embodiment 1 of the present invention. FIG. 7(a) is a schematic configuration diagram illustrating a blocking section of a waste treatment apparatus according to a first modification of the first embodiment of the present invention, and FIG. 7(b) is a modification of the first embodiment of the present invention. FIG. 3 is a schematic configuration diagram illustrating a blocking section of a waste treatment apparatus according to Example 2. FIG. 8 is a schematic configuration diagram illustrating a waste treatment apparatus according to a third modification of the first embodiment of the present invention. FIG. 9 is a schematic configuration diagram illustrating a waste treatment apparatus according to a fourth modification of the first embodiment of the present invention. FIG. 10 is a schematic configuration diagram illustrating a blocking section of a waste treatment apparatus according to Embodiment 2 of the present invention. FIG. 11 is an explanatory diagram illustrating a state in which the bag-shaped filter cloth of the blocking section of the waste treatment apparatus according to Embodiment 2 of the present invention is vibrated.

Embodiments of the present invention will be described below with reference to the drawings.
In addition, in each embodiment, the same symbol and the same code|symbol mean the same or equivalent functional part, and the same symbol and the same code|symbol of each embodiment mutually mean the functional part common to those embodiments. Therefore, redundant detailed explanation will be omitted here.

[Embodiment 1]
First, a waste treatment apparatus 1 according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 5. Embodiment 1 of the present invention exemplifies a case where the waste treatment apparatus of the present invention is applied to a bio-type composter. That is, the waste treatment device 1 according to the first embodiment is applied to a bio-type composting device that decomposes organic waste into water, carbon dioxide, and inorganic substances by the action of microorganisms, and reduces the amount and volume of organic waste. This is what I did.

As shown in FIGS. 1 and 2, the waste treatment apparatus 1 according to the first embodiment includes a fermenter 10 as a treatment tank in which waste is fermented and decomposed by microorganisms, and exhaust gas from the fermenter 10 is pumped into the atmosphere. A ball-shaped colliding body 53 is accommodated in a bag-shaped filter cloth (filter cloth bag) 52 as a filtration filter. The fermenter 10 has a blocking part 50 that forms a closed space 55 with a predetermined volume to prevent dust contained in the exhaust gas from the fermenter 10 from passing through.

As shown in FIGS. 1 and 2, the fermenter 10 is configured to store, for example, raw garbage generated in factories, stores, etc. (e.g., vegetables, fruits, marine products, meat, rice, barley, okara, tofu, tea lees, , food waste such as brewing by-products such as sake lees and mirin lees, juice of fruits and vegetables, tempura cakes, processed foods), livestock waste such as livestock manure (e.g., cow manure, pig manure, chicken manure, horse manure), etc. Organic waste (hereinafter simply referred to as "waste") such as excrement and sludge (septic tank) is input through the input port 41 provided above the waste treatment device 1, and is disposed of by microorganisms. This is a container in which fermentation and decomposition of waste is carried out, and inside the tank is a stirring device equipped with a rotating shaft 21 and a plurality of stirring blades 22 provided around the rotating shaft 21 as stirring means for stirring and fragmenting the waste. It has 20 machines. Note that the fermenter 10 is made of metal, for example, and usually has a heat-insulating structure.

In the first embodiment, as shown in FIG. 2, in the fermenter 10, a rotation shaft 21 is rotatably supported on the wall side of the fermentation tank 10 and is provided in the lateral direction (left and right direction). Since a plurality of stirring blades 22 are fixed around 21 at predetermined intervals, the stirring blades 22 rotate together with the rotating shaft 21, and the waste put into the fermentation tank 10 is stirred by the stirring blades 22. be able to. That is, a rotating shaft 21 extending in a substantially horizontal direction within the fermenter 10 is rotated by a rotation drive means (not shown) provided outside the tank, and a stirring blade 22 attached to the rotating shaft 21 is rotated to perform fermentation. The waste in the tank 10 is stirred and fragmented. Thereby, oxygen necessary for fermentation of microorganisms can be sufficiently supplied to the waste, and the waste can be efficiently fermented and decomposed and reduced in weight and volume. Note that the form of the stirring blade 22 is not particularly limited, and examples thereof include a paddle type, a screw type, a spiral type (drill type, auger type), and the like. The stirring blades 22 disposed around the rotating shaft 21 may be arranged so that adjacent stirring blades 22 are parallel to each other, or may be arranged so that the phases are shifted by a predetermined angle.

The fermenter 10 has an air supply port 16 and an exhaust port 17. Outside air (air) is introduced into the tank from outside the tank through the air supply port 16, and air inside the tank is introduced through the exhaust port 17. is discharged to the outside of the tank.
In the waste treatment apparatus 1 of the first embodiment, outside air (air) is sent into the fermenter 10 from an air blower 30 such as a blower as an air supply means, through an air supply passage and through an air supply port 16. Outside air is blown (forced) into the tank, and the air inside the tank is discharged to the outside of the tank through the exhaust port 17, and passes through the exhaust passage consisting of the blocking part 50, the pipe line 81, and the deodorizing device 70 to the exhaust part. From 71 onwards, it is released into the atmosphere.
That is, in the waste treatment apparatus 1 of the first embodiment, air is forced into the fermenter 10 from the blower 30 to create a positive pressure inside the fermenter 10, and the air inside the fermenter 10 is sucked on the exhaust side. Even without providing an air intake means, the air in the fermenter 10 is exhausted from the exhaust port 17, passes through the blocking part 50 and the pipe line 81, is deodorized by the deodorizing device 70, and is then released into the atmosphere. ing.

In the first embodiment, the fermenter 10 is designed to have an airtight structure in which the inside of the tank is isolated from the outside air, and has a structure that prevents odor from leaking out. In this case, the fermenter 10 is made airtight and maintained under positive pressure. That is, when fermenting and decomposing waste by microorganisms, outside air is forced into the fermenter 10 by the blower 30, and the amount of air introduced into the fermenter 10 is larger than the amount of air exhausted from the fermenter 10. Due to this setting, the pressure inside the fermenter 10 is higher than that outside the tank, and a positive pressure state is created. This promotes fermentation through the activation and proliferation of microorganisms, and promotes the decomposition and drying of waste.

At this time, the air blown from the blower 30 to the fermenter 10 is preferably heated. As a result, it is possible to accelerate the drying of the waste, and also to promote fermentation due to the activation and proliferation of microorganisms, thereby promoting the decomposition treatment of the waste. A heating means such as a heater may be provided in the air supply passage such as a pipe from the blower 30 to the fermenter 10, and as will be described later, when an air supply pipe is provided in the fermenter 10, a heater may be installed there. It is also possible to provide heating means such as the following.

Here, the air supply port 16 through which air from the blower 30 is introduced may be provided on the wall side of the fermenter 10, or an air supply pipe (not shown) communicating with the blower 30 may be arranged inside the fermenter 10. However, a plurality of air supply ports 16 may be provided in the air supply pipe. In the latter case, the air sent from the blower 30 is blown over a wide range of the waste to be fermented and decomposed, making it possible to bring the air into contact with the waste evenly and efficiently, thereby drying and fermenting and decomposing the waste. It is possible to promote this and prevent the occurrence of unevenness. In particular, this air supply pipe is equipped with a heater such as a sheathed heater, and by heating the air supplied to the waste and then blowing it onto the waste, it is possible to accelerate the drying of the waste and also to eliminate microorganisms. It can promote fermentation through activation and proliferation, and promote the decomposition of waste. Energy efficiency is also improved if the waste is heated immediately before being supplied with air. Note that the number of such air supply pipes may be one or two or more. For example, in the fermenter 10, the number of air supply pipes It is provided at an upper position where it does not interfere with the stirring blade 22. In addition, when an air supply pipe is provided at an upper position within the fermenter 10 and a plurality of air supply ports 16 are provided therein, it is preferable to blow air downward to blow the air onto the waste. Preferably, it may have a nozzle shape. Furthermore, a screw may be provided in the air supply pipe so that even if waste enters the air supply pipe through the air supply port 16, the waste may be discharged by rotation of the screw.

In addition, in the first embodiment, an inlet is provided in the upper part of the fermenter 10 at a position different from the exhaust port 17 for discharging the air inside the fermenter 10, and which can be freely sealed with an opening/closing lid (not shown). A port 41 is provided through which waste can be introduced into the fermenter 10. The waste is placed in a charging container (not shown), lifted upward by a supply lift (not shown), and tilting the charging container into the tank through the charging port 41 at the top of the fermenter 10. will be put into the
Further, on one side of the fermenter 10, there is an outlet that can be sealed with an opening/closing lid (not shown) for taking out (discharging) the residue after the waste has been fermented and decomposed by microorganisms. 43 are provided.

An exhaust port 17 for exhausting the air inside the fermenter 10 to the outside of the tank is provided in the upper wall of the fermenter 10 at a different position from the input port 41 into which waste is input. In the first embodiment, the upper wall of the fermenter 10 has a plurality of (two in the figure) exhaust ports 17. A wire mesh 18 that functions as a filter is installed at each exhaust port 17, and the wire mesh 18 is used to discharge coarse materials (foreign materials) in the waste from the fermentation tank 10 so that they are not discharged out of the tank along with the exhaust gas. It is now possible to prevent

In the first embodiment, a blocking part 50 is connected to the exhaust port 17 formed in the upper wall of the fermenter 10, and prevents the passage of dust contained in the exhaust from the fermenter 10. .
Specifically, as shown in FIGS. 3 to 5, the blocking section 50 of the first embodiment is installed on the upper surface of the fermenter 10, and has a substantially rectangular parallelepiped shape with an internal space of a predetermined volume. A metal box-shaped lid 51, a bag-shaped filter cloth 52 provided inside the box-shaped lid 51 and detachably attached to each exhaust port 17, and balls placed in the bags of the bag-shaped filter cloth 52. It is composed of a colliding body 53 having a shape.

The box-shaped lid 51 is a substantially rectangular parallelepiped-shaped lid with an opening at the bottom so as to collectively cover the plurality of exhaust ports 17 formed in the upper part of the fermenter 10, that is, to surround and cover the plurality of exhaust ports 17. The opening/closing lid 51a is formed on the top surface of the fermentation tank 10 by fixing and installing it on the top surface of the fermentation tank 10, and defines a predetermined closed space, the top of which can be freely sealed. It can be opened and closed by opening and closing. Further, the side surface of the box-shaped lid 51 has an exhaust port 57 to which a conduit 81 connected to the deodorizing device 70 is connected. The box-shaped lid 51 is also designed to have an airtight structure in which the inside is isolated from the outside air, so that odor does not easily leak out.

The bag-shaped filter cloth 52 provided inside the box-shaped lid 51 has a mesh opening large enough to allow air circulation, that is, ventilation, but to prevent the passage of dust contained in the exhaust gas.
The bag opening side of the filter cloth 52 is detachably attached to the exhaust port 17 of the fermenter 10 with a fitting 54 such as an annular fastener. That is, the bag-shaped filter cloth 52 is placed over the exhaust port 17 of the fermenter 10. Therefore, the exhaust air from the exhaust port 17 of the fermenter 10 is introduced into the bag of the bag-shaped filter cloth 52 and passes from inside the bag to outside the bag.
The filter cloth 52 may be made of, for example, short fibers (spun yarn, spun yarn, etc.) or long fibers (spun yarn, etc.) made of synthetic fibers or natural fibers such as polypropylene, nylon, aromatic polyamide, vinylidene chloride, vinylon, or cotton. Woven fabrics such as satin weave, plain weave, and twill weave, such as monofilament yarn (filament yarn, etc.), single fibers (monofilament yarn, etc.), split-type ultrafine fiber yarn, nonwoven fabric (melt-blown), and laminate can be used.
Particularly, the bag-shaped filter cloth 52 of the first embodiment has a cylindrical shape in which the end opposite to the bag mouth side is formed into a substantially curved shape and a substantially arc shape. This allows a wider contact surface with the collision body 53 and prevents dust from accumulating.

Further, inside the bag-shaped filter cloth 52, a plurality of ball-shaped collision bodies 53 are housed. That is, in the first embodiment, a closed space 55 is formed in the bag-shaped filter cloth 52 by covering the exhaust port 17 in which the wire mesh 18 is installed with the bag-shaped filter cloth 52, and the closed space 55 is A plurality of ball-shaped collision bodies 53 are accommodated.
The collision body 53 may be any material as long as it can move up and down within the bag-shaped filter cloth 52 by the exhaust flow from the exhaust port 17 of the fermenter 10, and may be made of resin or the like, for example. In addition, a material having a substantially spherical shape and having interstitial spaces 53a such as a mesh, porous, strip, or lattice shape is used. That is, if it is made of resin and has a substantially spherical shape, it is easy to move up and down and move around within the bag-shaped filter cloth 52 even if the pressure and amount of the exhaust flow from the exhaust port 17 is small. In addition, since the one having the gap space 53a is lightweight and allows air to circulate, even if the pressure and amount of the exhaust flow from the exhaust port 17 is small, it rises and falls within the bag-shaped filter cloth 52 and moves around. It becomes easy. Furthermore, if the configuration has the gap space 53a, the surface area can be increased, so that the contact rate and frequency of contact with the dust exhausted from the exhaust port 17 can be increased, and the effect of causing the dust to collide and fall is reduced. It is possible to increase it.

In this manner, in the blocking unit 50 of the first embodiment, a bag-shaped filter cloth is attached to each exhaust port 17 provided in the upper part of the fermenter 10 inside the box-shaped lid 51 which covers the plurality of exhaust ports 17 and has an airtight structure. 52 and covering the exhaust port 17 with the bag-shaped filter cloth 52, the exhaust gas rising from the exhaust port 17 provided at the upper part of the fermenter 10 is directed to the closed space 55 in the bag of the bag-shaped filter cloth 52. and passes from its inner surface to its outer surface. An exhaust port 57 is provided on the side surface of the box-shaped lid 51, and a conduit 81 connected to the deodorizing device 70 is connected to the exhaust port 57, so that the inside surface of the bag-shaped filter cloth 52 can be The exhaust gas that has passed through the outer surface side is discharged from the exhaust port 57 of the box-shaped lid 51 and introduced into the deodorizing device 70 via the pipe line 81.
In addition, the blocking part 50 is connected to the exhaust port 17 of the fermenter 10, the blocking part 50 is communicated with the deodorizing device 70 via the pipe line 81, and the exhaust part 71 is provided downstream of the deodorizing device 70. , the blocking part 50, the pipe line 81, and the deodorizing device 70 constitute an exhaust passage through which the exhaust from the fermenter 10 communicates with the exhaust part 71, that is, an exhaust passage that allows ventilation from the fermenter 10 to the exhaust part 71. ing.

In the blocking unit 50 of the first embodiment, inside the box-like lid 51 that covers the plurality of exhaust ports 17, a bag-shaped lid 51 is provided so as to cover each exhaust port 17 in which the wire mesh 18 of the fermenter 10 is installed. The bag opening side of the filter cloth 52 is attached, and a plurality of ball-shaped collision bodies 53 are housed in the closed space 55 inside the bag-shaped filter cloth 52, so that an exhaust port is formed in the upper part of the fermenter 10. Due to the exhaust flow from 17, a plurality of ball-shaped colliding bodies 53 rise and fall in a closed space 55 inside the bag-shaped filter cloth 52, moving and diffusing at random. As a result, dust floating in the exhaust gas flowing into the bag of the bag-shaped filter cloth 52 from the exhaust port 17 of the fermenter 10 collides with the collision body 53 and falls. Further, the collision body 53 collides with the inner surface of the bag-shaped filter cloth 52 and collides with and contacts the dust adhering to the inner surface of the bag-shaped filter cloth 52, so that the dust falls. Furthermore, the dust adhering to the inner surface of the filter cloth 52 also falls due to the vibration when the collision body 53 collides with the inner surface of the bag-shaped filter cloth 52. In the first embodiment, a bag-shaped filter cloth 52 is placed so as to cover the upper side of the exhaust port 17 provided at the upper part of the fermenter 10, and the bag-shaped filter cloth 52 is used to exhaust air at the bottom in the vertical direction. Since it is open on the mouth 17 side, the colliding body 53 collides with and contacts dust inside the bag-shaped filter cloth 52, and the dust that falls when the colliding body 53 collides with the filter cloth 52 is removed. falls back into the fermenter 10 from the exhaust port 17 due to its own weight.

That is, in the first embodiment, a plurality of ball-shaped colliding bodies 53 are placed in a closed space 55 inside the bag of the bag-shaped filter cloth 52 that is placed over the exhaust port 17 of the fermenter 10 at the upper part of the outside of the fermenter 10 . By making a plurality of ball-shaped colliding bodies 53 move around inside the closed space 55 formed by the filter cloth 52 depending on the pressure and flow rate of the exhaust from the exhaust port 17, the bag-shaped filter is removed from the exhaust port 17. The colliding body 53 collides with the dust floating in the exhaust gas flowing into the cloth bag 52 and the dust adhering to the inner surface of the bag-shaped filter cloth 52 to cause the dust to fall. The dust adhering to the inner surface of the bag-shaped filter cloth 52 is dropped by causing the colliding body 53 to collide with the inner surface of the bag-shaped filter cloth 52 and vibrating the bag-shaped filter cloth 52.

Furthermore, in the first embodiment, a bag-shaped filter cloth 52 is placed so as to cover the upper part of each exhaust port 17 provided at the upper part of the fermenter 10, and the exhaust from the exhaust port 17 is passed through the bag-shaped filter cloth. 52 from the inner surface to the outer surface, the exhaust flow from the exhaust port 17 is blown onto the inner surface of the bag-shaped filter cloth 52, causing dust to collide with the inner surface of the bag-shaped filter cloth 52 and fall. In addition, it is possible to cause dust adhering to the inner surface of the bag-shaped filter cloth 52 to fall due to the pressure of the exhaust flow.
In addition, if the filter cloth 52 is in the form of a bag, its flexibility causes it to expand with the exhaust flow from the fermenter 10 (see FIG. 4(a)), and contract when the exhaust stops (see FIG. 4(b)). Because of this movement, even if dust adheres to the inner surface of the bag-shaped filter cloth 52, it is possible to cause the dust to fall.
In addition, in the first embodiment, the bag-shaped filter cloth 52 is placed so as to cover the upper part of the exhaust port 17 provided at the upper part of the fermenter 10, and the bag-shaped filter cloth 52 is placed vertically below the exhaust port 17. Since the bag-shaped filter cloth 52 has an inner surface facing vertically downward, the dust in the exhaust gas that has flowed into the bag-shaped filter cloth 52 flows from the inner surface of the filter cloth 52 to the outer surface. Particularly, the dust that has been blocked from passing and has reached the vertically downward inner surface of the bag-shaped filter cloth 52, that is, the dust that has been pressed by the exhaust flow against the vertically downward inner surface of the filter cloth 52, is removed due to the suspension of exhaust, etc. The dust that has flowed into the bag-shaped filter cloth 52, which tends to fall due to its own weight, can be returned to the fermenter 10 through the exhaust port 17 by gravity.

Therefore, in the first embodiment, since dust is difficult to accumulate on the bag-shaped filter cloth 52, the burden of maintenance can be reduced.

That is, in the blocking section 50 of the first embodiment, the colliding body 53 causes the dust to fall within the bag-like filter cloth 52, and the bag-like filter cloth 52 prevents the dust from passing through. .
In particular, in the first embodiment, each exhaust port 17 of the fermenter 10 is covered with a bag-shaped filter cloth 52, and the exhaust gas rising from the exhaust port 17 is passed from the inner surface side of the bag-shaped filter cloth 52 to the outer surface side. The inner surface of the bag-shaped filter cloth 52 prevents the passage of dust, and the bag-shaped filter cloth 52 is placed above the exhaust port 17 of the fermenter 10 with the opening of the bag-shaped filter cloth 52 facing downward. Since the bag-shaped filter cloth 52 has an inner surface facing vertically downward, the dust that reaches the inner surface of the bag-shaped filter cloth 52 tends to fall under its own weight, and the bag-shaped filter cloth 52 The dust that has flowed into the tank can be returned to the fermenter 10 through the exhaust port 17. Further, the bag of the bag-shaped filter cloth 52 accommodates a colliding body 53 that moves around due to the exhaust flow from the exhaust port 17, and the colliding body 53 moves around within the bag of the bag-shaped filter cloth 52 due to the exhaust flow. As a result, the dust collides with the dust contained in the exhaust gas and causes the dust to fall, or collides with the inner surface of the bag-shaped filter cloth 52 and adheres to the inner surface of the bag-shaped filter cloth 52 due to the vibration and contact with the dust. to allow dust to fall. Since the bag-shaped filter cloth 52 that accommodates the colliding body 53 and forms the closed space 55 covers each exhaust port 17 of the fermenter 10, the dust that has fallen inside the bag-shaped filter cloth 52 is removed. It is returned to the fermenter 10 through the exhaust port 17 due to its own weight.

In this manner, in the blocking section 50 of the first embodiment, the collision body 53 and the filter cloth 52 prevent the passage of dust contained in the exhaust gas from the fermenter 10 . That is, dust is discharged from the exhaust port 57 of the box-shaped lid 51 in the blocking section 50 and is prevented from flowing into the deodorizing device 70 on the downstream side, thereby removing dust from the exhaust gas. In addition, in the waste treatment apparatus 1 of this Embodiment 1, since the blocking part 50 is provided in the upper surface part of the fermentation tank 10, a horizontal installation space is not required.
In particular, by causing the dust to fall by the collision body 53, dust is prevented from accumulating on the inner surface of the bag-shaped filter cloth 52. Furthermore, by placing the bag-shaped filter cloth 52 over the exhaust port 17 of the fermenter 10 with the opening of the bag-shaped filter cloth 52 facing downward, the filter cloth 52 has an inner surface facing vertically downward. It is possible for the dust that has reached the inner surface of the bag-shaped filter cloth 52 to fall under its own weight, and the accumulation of dust on the inner surface of the bag-shaped filter cloth 52 is prevented. Furthermore, the pressure of the exhaust flow from the exhaust port 17 being blown onto the inner surface of the bag-shaped filter cloth 52 and the movement of the bag-shaped filter cloth 52 expanding and contracting due to the strength and weakness of the exhaust flow cause the inner surface of the bag-shaped filter cloth 52 to Being able to drop the attached dust also prevents dust from accumulating on the inner surface of the bag-shaped filter cloth 52.
Therefore, in the first embodiment, it is possible to prevent dust from accumulating on the bag-shaped filter cloth 52, and it is difficult for dust to adhere to the inner surface of the filter cloth 52, so that maintenance for removing clogging caused by dust is required. can reduce the burden on

In the first embodiment, the filter cloth 52 is attached above the exhaust port 17 inside the box-like lid 51, but the filter cloth 52 is bag-shaped and has a configuration in which ventilation is caused from the inner surface to the outer surface. For this reason, even if dust accumulates inside the bag-shaped filter cloth 52, the bag-shaped filter cloth 52 shakes off the dust by shaking it due to its flexibility, and exits from the bag opening to the exhaust port 17. It is easily possible to return it to the fermenter 10 via the .

That is, in the first embodiment, since the upper part of the box-shaped lid 51 is openable by the open/close lid 51a which can be freely sealed, the upper part of the box-shaped lid 51 can be opened by opening the open/close lid 51a, and the box-shaped lid 51 can be opened. Dust that has accumulated inside the bag-shaped filter cloth 52 can be shaken off by inserting a hand inside the filter cloth 52 and applying vibrations by hitting, pressing, shaking, pulling, etc. (see FIG. 11). is easily possible. At this time, while the bag-like filter cloth 52 is attached to the exhaust port 17 without removing the bag-like filter cloth 52, the dust accumulated inside the bag-like filter cloth 52 is shaken off and the filter cloth 52 is clogged. can be easily resolved. Since the bag-shaped filter cloth 52 is placed over each exhaust port 17 of the fermenter 10 with its opening facing downward, the dust shaken off from the filter cloth 52 inside the bag is absorbed by its own weight. It is returned to the fermenter 10 through the exhaust port 17. Therefore, even if the filter cloth 52 is used, maintenance can be easily performed to remove dust attached thereto (see FIG. 11).

Maintenance of the bag-shaped filter cloth 52 can be carried out, for example, by measuring and detecting the pressure inside the box-shaped lid 51, which has an airtight structure, or the pressure of the exhaust gas after passing through the box-shaped lid 51, and detecting the pressure when the pressure exceeds a predetermined threshold. Sometimes, as described above, by manually vibrating the filter cloth 52, the dust that has adhered and accumulated on the inside of the bag-shaped filter cloth 52 may be caused to fall downward and be returned to the fermenter 10. A vibrating means that is activated by a drive and vibrates the filter cloth 52 is provided, and the vibrating means vibrates the filter cloth 52 to shake off dust that has adhered and accumulated on the inside of the bag-shaped filter cloth 52 and transfer it to the fermenter 10. You may also return it.

Further, even in cases where fine dust has become stuck inside the filter cloth 52 due to long-term use and the pressure loss has increased, in the first embodiment, a bag-shaped filter is installed at the exhaust port 17 of the fermenter 10. By detachably attaching the cloth 52 with the attachment 54, the bag-shaped filter cloth 52 can be removed from the exhaust port 17 of the fermenter 10 to clean or replace the bag-shaped filter cloth 52. It is possible.

In this way, in the first embodiment, the box-shaped lid 51 has an airtight structure that covers the upper part of the plurality of exhaust ports 17 formed in the upper part of the fermenter 10, and the exhaust ports 17 of the fermenter 10 are provided inside the box-shaped lid 51. The blocking portion 50 is formed by a bag-shaped filter cloth 52 detachably attached to the exhaust port 17 and a plurality of ball-shaped collision bodies 53 housed in a closed space 55 formed by attaching the bag-shaped filter cloth 52 to the exhaust port 17. The pressure and flow of exhaust gas rising from the exhaust port 17 of the fermenter 10 causes a plurality of colliders 53 to move around inside the bag-shaped filter cloth 52 in the blocking section 50, thereby causing the fermenter 10 to The dust contained in the exhaust from the exhaust port 17 collides with the collision body 53 and falls, and the collision body 53 collides with the inner surface of the bag-shaped filter cloth 52 and adheres to the bag-shaped filter cloth 52. The dust contained in the exhaust gas is returned to the fermenter 10 through the exhaust port 17. In addition, since the bag-shaped filter cloth 52 is placed above the exhaust port 17 of the fermenter 10 with its opening facing downward, the dust contained in the exhaust from the exhaust port 17 is transferred to the bag-shaped filter cloth 52. Passage is blocked by the inner surface of the In particular, since the filter cloth 52 has an inner surface facing vertically downward, dust that is blocked from passing by the inner surface of the filter cloth 52 tends to fall under its own weight and is returned to the fermenter 10 through the exhaust port 17. In this way, the collision body 53 and the bag-shaped filter cloth 52 prevent the dust contained in the exhaust from the exhaust port 17 from passing through.

Then, the exhaust gas from which dust has been removed (dust removed) in the blocking section 50 flows out from the exhaust port 57 of the blocking section 50 and flows into the deodorizing device 70 via the pipe 81, where odor components are removed. It is removed, deodorized (deodorized), and released into the atmosphere from an exhaust section 71 provided downstream of the deodorizing device 70.

As the deodorizing device 70, for example, a porous material such as activated carbon is used, and while the exhaust gas from the fermenter 10 rises in a tank filled with the porous material such as activated carbon, the exhaust gas from the fermenter 10 is removed. Odor components contained in the porous material, such as ammonia, lower fatty acids, sulfur compounds such as methyl sulfide, are adsorbed to the porous material and removed. Alternatively, deodorization may be performed by an oxidation reaction using a catalyst.
In this way, the exhaust gas from the fermenter 10 is deodorized in the deodorizing device 70, and the deodorized exhaust gas is released into the atmosphere at the exhaust section 71 provided downstream of the deodorizing device 70 (in the upper side of the deodorizing device 70 in FIGS. 1 and 2). released to.

In addition, the waste treatment apparatus 1 also includes heating means such as a heater that typically heats the fermenter 10 or heats the air blown from the blower 30, and a stirrer 20 in the fermenter 10. Controls the operation of the stirrer drive means such as a hydraulic motor or electric motor that rotates the rotating shaft 21 in the fermenter, the pressure sensor that detects the pressure inside the fermenter 10 and the exhaust gas, the stirrer drive means, the heating means, the blower, etc. The control means is provided with a control means for inputting commands to the control means, an input means for inputting commands to the control means, and the like.

The agitator driving means transmits the rotational output of a motor or the like to the rotating shaft 21 via a power transmission mechanism such as a gear, for example. Note that the rotating shaft 21 may be rotatably driven in only one direction, or may be rotatably driven in a forward direction and a reverse direction.
The control means is configured using, for example, a computer having a central processing unit such as a CPU (Central Processing Unit), a storage unit such as a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. In this control means, for example, the weight of waste detected and calculated by a load cell, the pressure inside the fermenter 10 measured by a pressure sensor, etc., the elapsed processing time of waste, a temperature sensor, a humidity sensor, etc. Based on the temperature, humidity, etc. inside the fermenter 10 measured by By controlling the operation and controlling the temperature of the fermenter 10 by controlling the temperature of a heating means such as a heater, it is possible to efficiently ferment and decompose waste, and also to save energy. possible.

In the waste treatment apparatus 1, the pressure inside the fermentation tank 10 measured by the pressure sensor is inputted to the control means by the input means, and when the pressure exceeds a predetermined threshold, it is determined that an abnormal load has been reached or air is leaking. It may also be possible to issue a warning as a warning. Further, when a pressure abnormality is detected, all operations or some operations (for example, blowing air, driving the agitator 20, heating, etc.) of the device 1 may be stopped for safety. Alternatively, a valve such as a solenoid valve for regulating pressure may be provided in the exhaust path, and when an abnormality in pressure is detected, the pressure may be reduced by opening the valve.
Furthermore, as described above, the pressure of the exhaust air from the blocking section 50 is also measured by the pressure sensor, and when the pressure inside the box-shaped lid 51 increases and exceeds a predetermined threshold, the pressure of the bag-shaped filter cloth 52 is increased. It may be possible to notify that a blockage has occurred due to the accumulation of dust inside. That is, the bag-shaped filter cloth 52 may be vibrated to notify that it is the timing to cause the dust attached to the inside of the bag-shaped filter cloth 52 to fall back to the fermentation tank 10 side. By determining whether the bag-like filter cloth 52 is clogged by pressure measurement in this way, the time and effort of opening the box-like lid 51 and checking the condition of the bag-like filter cloth 52 can be saved.

The waste treatment apparatus 1 according to the first embodiment includes an input means such as an operation section for input operation by a user, a worker, etc., and a control means for controlling the operation of the apparatus 1 based on commands from the input means. When waste is input into the fermenter 10 from the input port 41 and the device 1 is instructed to start operation by the input means in a sealed state, the control means activates the agitator driving means, the blower 30, etc. is activated, and while the waste is stirred in the fermenter 10 by the agitator 20, outside air is blown into the fermenter 10 by the blower 30 through the air supply port 16, and the waste is fermented and decomposed. . At this time, the air in the fermenter 10 is discharged through the exhaust port 17, passes through the exhaust passage composed of the blocking section 50, the pipe line 81, the deodorizing device 70, etc., and is released into the atmosphere from the exhaust section 71. .

In this manner, in the waste treatment apparatus 1 of the first embodiment, waste is input into the fermentation tank 10 from the input port 41, and the waste is fermented and decomposed by microorganisms within the fermentation tank 10. At this time, the waste is preferably mixed with a bacterial bed material (substrate) containing microorganisms and auxiliary materials that promote the fermentation and decomposition of the waste, and residues after fermentation and decomposition of the waste. Decomposed.
When the waste is fermented and decomposed by microorganisms in the fermenter 10, the waste is stirred by the agitator 20, and outside air (air) is blown (forced) into the fermenter 10 from the blower 30. The waste is decomposed while the fermenter 10 is aerated (while being aerated and stirred). This supplies oxygen to the waste in the fermenter 10, promoting fermentation and decomposition and fragmentation of the waste, as well as evaporation and drying of water in the waste. That is, by aerating the fermenter 10 and stirring the waste, oxygen is continuously supplied to the microorganisms, which promotes aerobic fermentation and decomposition due to the activation and proliferation of the microorganisms. The drying of the waste is promoted by blowing outside air from 30.

In addition, by heating the fermenter 10 with a heating means or by sending heated air into the fermenter 10, the waste can be heated to, for example, 40 to 90°C by fermentation heat generated by microorganisms. Elevating the temperature also promotes fermentation and decomposition processing through the activation and proliferation of microorganisms, and also promotes drying. Note that in the waste treatment apparatus 1 of the first embodiment, water in the waste is evaporated and discharged to the outside together with the exhaust gas, so wastewater treatment is not necessary.

Furthermore, in the first embodiment, during the fermentation and decomposition treatment of waste, outside air is force-fed into the fermenter 10 by the blower 30, and the air is blown from the blower 30 to the fermenter 10 from the air supply port 16 of the fermenter 10. The air flowing into the fermenter 10, that is, the air inside the fermenter 10, flows out from the exhaust port 17 provided at the top of the fermenter 10, thereby aerating the fermenter 10. Then, the exhaust gas flowing out from the exhaust port 17 at the upper part of the fermenter 10 passes through the bag-shaped filter cloth 52 attached to the exhaust port 17 in the box-shaped lid 51 constituting the blocking part 50 from the inner surface to the outer surface. It passes through the exhaust port 57 of the box-shaped lid 51, flows into the deodorizing device 70 via the pipe 81, is deodorized there, and is then released to the outside air from the exhaust section 71 provided downstream of the deodorizing device 70. be done. That is, during the fermentation and decomposition treatment of waste, the air inside the fermenter 10, that is, the air (outside air) forced into the fermentation tank 10 by the blower 30, is used to absorb gas and waste generated in the fermentation and decomposition treatment of waste. The water vapor flows from the exhaust port 17 provided at the top of the fermenter 10 to the blocking part 50 provided outside the fermenter 10, flows into the deodorizing device 70 via the pipe 81, and passes through there. At this time, odor components are removed and exhausted into the atmosphere from the exhaust section 71.

In this way, the waste is fermented and decomposed by the action of microorganisms while being aerated and agitated in the airtight fermenter 10, and is decomposed into water, carbon dioxide gas, and inorganic substances, and the water content of the waste is removed by aeration and heating. It evaporates, reducing the volume and weight of waste. The residue after the fermentation and decomposition treatment of waste can be taken out from an outlet 43 provided on the side of the waste treatment device 1. For example, it can be used as compost, soil conditioner, animals/livestock ( For example, it can be used as feed for cattle, pigs, horses, chickens, sheep, etc.), as a deodorant to be sprayed on livestock excrement, as a livestock excrement accelerator, and the like.

In particular, the waste treatment apparatus 1 of the first embodiment blows outside air into the fermentation tank 10 with the blower 30 and supplies the outside air to the waste 10 by blowing or the like to promote fermentation and decomposition and drying of the waste 10. Even if dust is scattered and raised from the waste 10 and is discharged together with the exhaust from the exhaust port 17 formed at the top of the fermenter 10, the blocking part 50 is connected to the exhaust port 17 at the top of the fermenter 10. By providing this, the collision body 53 and the filter cloth 52 of the blocking part 50 prevent the passage of dust (suspended matter) from the waste 10, and the dust contained in the exhaust gas flows through the exhaust port 17 to the fermentation tank. Returned to 10.

That is, in the first embodiment, the box-shaped lid 51 covers the exhaust port 17 formed in the upper part of the fermenter 10 and forms a space with a predetermined volume, and the opening side is provided above the exhaust port 17 inside the box-shaped lid 51. A blocking section 50 is constituted by a bag-shaped filter cloth 52 to which a bag-shaped filter cloth 52 is detachably attached, and a collision body 53 housed in the bag of the bag-shaped filter cloth 52. Due to the upward exhaust flow from the exhaust port 17 , the collision body 53 rises and falls within the bag of the bag-like filter cloth 52 attached to the exhaust port 17 and moves around. Dust contained in the inflowing exhaust gas collides with the colliding body 53 and falls. Further, due to the upward exhaust flow from the exhaust port 17 of the fermenter 10, the colliding body 53 moves up and down in the bag of the bag-shaped filter cloth 52 attached to the exhaust port 17, so that the colliding body 53 moves around in the bag-shaped filter cloth 52. When the collision body 53 collides with the inner surface of the filter cloth 52 and is attached to the inner surface of the bag-shaped filter cloth 52, or when the collision body 53 collides with the inner surface of the bag-shaped filter cloth 52, The vibration causes dust adhering to the inner surface of the bag-shaped filter cloth 52 to fall.

By attaching the bag-shaped filter cloth 52 to the exhaust port 17 so as to cover the upper part of each exhaust port 17, that is, the bag-shaped filter cloth 52 is attached to the exhaust port 17 with the bag opening facing downward. By covering the bag-shaped filter cloth 52 above, the dust that has fallen inside the bag-shaped filter cloth 52 is returned to the fermenter 10 by falling through the exhaust port 17.
That is, in the waste treatment apparatus 1 of the first embodiment, the blocking part 50 is provided on the upper surface of the fermenter 10 in the vertical direction, and surrounds above the plurality of exhaust ports 17 on the upper surface side of the fermenter 10. Inside the box-like lid 51 provided to cover each exhaust port 17, a bag-like filter cloth 52 is placed with the opening side facing down, so that the inside of the bag-like filter cloth 52 is covered. Due to its own weight, the fallen dust falls back into the fermentation tank 10 through the exhaust port 17 attached to the bag opening side. Note that the dust returned to the fermenter 10 is taken out from the outlet 43 and collected together with the waste in the fermenter 10.

Furthermore, the bag-shaped filter cloth 52 is provided so as to cover the upper part of each exhaust port 17 of the fermenter 10 with its opening facing down, so that the dust that is blocked from passing by the bag-shaped filter cloth 52 can be prevented from passing through. Because of its own weight, it tends to fall, and because the inner surface of the end of the bag-shaped filter cloth 52 faces downward in the vertical direction, the dust that reaches the inner surface of the bag-shaped filter cloth 52 tends to fall due to gravity. The dust that has flowed into the filter cloth 52 can be dropped and returned to the fermenter 10 through the exhaust port 17.

In the first embodiment, a bag-shaped filter cloth 52 is detachably attached to the exhaust port 17 within the box-shaped lid 51 that covers the upper part of the exhaust port 17 in the blocking portion 50, and the bag-shaped filter cloth 52 Even if a filter cloth 52 for filtering dust is provided, the filter cloth 52 is formed into a bag shape and is flexible, and the filter cloth 52 is flexible from the inner surface to the outer surface. Since it allows the exhaust air from the exhaust port 17 to pass through, the pressure of the exhaust flow from the exhaust port 17, the strength and weakness of the pressure of the exhaust flow, and the expansion and contraction of the bag-shaped filter cloth 52 when the exhaust operation is stopped are controlled. It is also possible to remove dust attached to the inner surface of the bag-shaped filter cloth 52 by the movement.

In this way, in the blocking section 50, the collision body 53 and the bag-shaped filter cloth 52 prevent the passage of dust contained in the exhaust gas from the fermenter 10. This can prevent dust from flowing into the deodorizing device 70 on the downstream side, and prevent the deodorizing efficiency from decreasing in a short period of time due to an increase in the load on the deodorizing device 70.

In the first embodiment, in the blocking section 50, the bag-shaped filter cloth 52 installed above the exhaust port 17 is housed in the bag, and the exhaust flow (air blowing) from the fermenter 10 causes the bag to be removed. When the colliding body 53 moving up and down inside the shaped filter cloth 52 collides with dust contained in the exhaust gas, and when the colliding body 53 collides with the bag-shaped filter cloth 52, the bag-shaped filter cloth 52 is moved. This is to drop the dust floating in the exhaust gas flowing into the chamber 52 and the dust adhering to the bag-shaped filter cloth 52, and furthermore, the bag-shaped filter cloth 52 is fermented with its opening facing down. Since the filter cloth 52 is provided to cover each exhaust port 17 of the tank 10 and has an inner surface facing vertically downward, dust that is blocked from passing by the inner surface of the bag-shaped filter cloth 52 is likely to fall due to its own weight. Therefore, it is possible to effectively prevent dust from accumulating in the bag-shaped filter cloth 52 and clogging it. Therefore, maintenance for removing dust collected on the filter cloth 52 can be eliminated or the burden of maintenance can be reduced. That is, maintenance costs, work effort, and effort can be reduced.

In particular, the exhaust air from the fermenter 10 contains a lot of moisture due to evaporation of water from the waste, and the moisture of the exhaust air causes the bag-like filter cloth 52 to become clogged in the exhaust passage where the exhaust air from the fermenter 10 communicates with the exhaust part 71. Before the dust adheres to the inner surface and hardens due to moisture, the collision of the colliding body 53 with the bag-shaped filter cloth 52 makes it possible to drop the dust adhered to the bag-shaped filter cloth 52, and the bag-shaped filter cloth 52 Prevents dust from accumulating and sticking to the inner surface of the
Further, in the first embodiment, since the dust is dropped by the operation of the collision body 53, it is possible to prevent the dust from accumulating and sticking to the filter cloth 52. Condensation is hard to form inside, and rust is hard to form. Since no condensation occurs and no waste water is generated, costly drainage equipment is not required.

Furthermore, since the filter cloth 52 is bag-shaped and allows air to pass from its inner surface to its outer surface, the inner surface of the bag-shaped filter cloth 52 prevents the passage of dust. Even if dust accumulates inside the bag-shaped filter cloth 52, do not apply force to the bag-shaped filter cloth 52 by hitting, pressing, shaking, or pulling it from the outside while the bag-shaped filter cloth 52 is attached to the exhaust port 17. By shaking, the dust accumulated inside the bag-shaped filter cloth 52 can be discharged from the bag mouth side and dropped into the fermentation tank 10 through the exhaust port 17 and returned. Therefore, the workload of maintaining the filter cloth 52 can be reduced.

In this manner, the waste treatment apparatus 1 of the first embodiment has a configuration in which dust is difficult to accumulate on the bag-shaped filter cloth 52, and the burden of maintenance can be reduced. Furthermore, since dust is difficult to accumulate on the bag-shaped filter cloth 52, it is possible to reduce the load on the deodorizing device 70 on the downstream side.

As described above, the waste treatment apparatus 1 of the first embodiment includes the fermenter 10 as a treatment tank in which waste is decomposed by microorganisms, and the exhaust section that discharges the exhaust gas from the fermenter 10 into the atmosphere. 71 is provided in the exhaust passage through which the exhaust from the fermenter 10 communicates with the exhaust part 71, and the colliding body 53 that moves within the closed space 55 due to the exhaust flow causes the dust contained in the exhaust from the fermenter 10 to fall. It is provided with a blocking section 50 that prevents passage.

According to the waste treatment apparatus 1 of the first embodiment, the collision body 53 is housed in the closed space 55 of the predetermined volume of the blocking part 50 and moves in the closed space 55 by the exhaust flow from the fermenter 10. It collides with the dust floating in the exhaust air from the tank 10 to cause the dust to fall, and also collides with the inner surface forming the closed space 55 that accommodates the collision body 53 to cause the dust adhering there to fall. let Therefore, the fallen dust can be returned to the fermentation tank 10 or collected at the point where it fell.
Therefore, even if a filter (filter cloth 52) for filtering dust is installed in the blocking section 50, it is difficult to collect dust on the filter (filter cloth 52), so that the burden of maintenance can be reduced.

That is, in the waste treatment apparatus 1 of the first embodiment, the fermenter 10 serves as a treatment tank in which waste is decomposed by microorganisms, the exhaust section 71 discharges exhaust gas from the fermenter 10 into the atmosphere, and the fermenter A closed space 55 is formed with a bag-shaped filter cloth 52, and a closed space 55 is provided in an exhaust passage through which exhaust air from the fermenter 10 communicates with the exhaust section 71, and accommodates a colliding body 53 that is moved by the exhaust flow from the fermenter 10. A collision body 53 that moves in a closed space 55 formed by a cloth 52 by the exhaust flow causes dust contained in the exhaust gas from the fermenter 10 to fall, and includes a blocking part 50 that prevents the dust from passing through.

According to the waste treatment apparatus 1 of the first embodiment, the bag-shaped filter cloth 52 of the blocking section 50 is accommodated in the bag, and the inside of the bag-shaped filter cloth 52 is cleaned by the exhaust flow from the fermenter 10. The moving colliding body 53 collides with the dust floating in the exhaust gas from the fermenter 10, causing the dust to fall, and colliding with the inner surface of the bag-shaped filter cloth 52 that houses the colliding body 53, causing the dust to fall there. Remove any adhering dust. In the first embodiment, the bag opening side of the bag-shaped filter cloth 52 is attached to the exhaust port 17 of the fermenter 10, so that the dust that has fallen inside the bag of the bag-shaped filter cloth 52 can be removed from the exhaust port. 17 and is returned to the fermenter 10.
Therefore, even if the filter cloth 52 is provided as a filter for filtering dust in the blocking portion 50, the dust is difficult to accumulate on the filter cloth 52, so that the burden of maintenance can be reduced. In addition, since dust is difficult to accumulate on the filter cloth 52 and clogging can be prevented, it is difficult to place a load on the deodorizing device 70 on the downstream side. Therefore, running costs can be reduced.

According to the waste treatment apparatus 1 of the first embodiment, the blocking unit 50 covers the exhaust port 17 provided at the top of the fermenter 10 and allows the dust contained in the exhaust to fall from the exhaust port 17 into the fermenter. Return to 10. That is, in the waste treatment apparatus 1 of the first embodiment, the bag-shaped filter cloth 52 containing the colliding body 53 is placed over the exhaust port 17 provided at the top of the fermenter 10 with the bag opening facing downward. This covers the exhaust port 17 and returns the dust that has fallen inside the bag-shaped filter cloth 52 from the exhaust port 17 to the fermenter 10. Therefore, there is no need for a separate configuration and collection work to collect the fallen dust at the falling point, and maintenance management can be simplified.

In particular, in the first embodiment, the bag-shaped filter cloth 52 opens vertically downward and covers the exhaust port 17 from above, so that the filter cloth 52 has an inner surface facing vertically downward and rises from the exhaust port 17. The dust whose passage is blocked by the inner surface of the bag-shaped filter cloth 52 is likely to fall due to its own weight, and the dust can be dropped and returned to the fermenter 10 from the exhaust port 17 with a simple configuration. That is, a bag-shaped filter cloth 52 is placed over the exhaust port 17 provided at the top of the fermenter 10 so that its opening faces downward in the vertical direction, and the bottom side of the filter cloth 52 faces downward. Due to the orientation, dust that has reached the inner surface of the filter cloth 52 is likely to fall due to its own weight and gravity. By attaching the filter cloth 52 to the exhaust port 17 with the bag opening side facing downward, the dust that has fallen inside the bag of the filter cloth 52 falls from the exhaust port 17 to the fermenter 10 and is returned. Therefore, it is possible to effectively prevent dust from accumulating on the filter cloth 52.

Further, according to the waste treatment apparatus 1 of the first embodiment, the blocking section 50 includes the filter cloth 52 as a filtration filter for filtering dust. The load on the device 70 can be further reduced.

That is, according to the waste treatment apparatus 1 of the first embodiment, the blocking unit 50 accommodates the collision body 53 in the bag-shaped filter cloth 52 that filters dust, and filters the exhaust gas from the fermenter 10 into the bag-shaped filter cloth 52. The filter cloth 52 is passed from the inner surface to the outer surface. That is, it has a bag-shaped filter cloth 52 that is attached to the exhaust port 17 of the fermenter 10 and filters dust, and a colliding body 53 is housed in the bag of the bag-shaped filter cloth 52. The exhaust air from the filter cloth 52 is passed from the inner surface to the outer surface of the bag-shaped filter cloth 52. Therefore, it becomes possible to increase the dust removal efficiency by using the filter cloth 52 and further reduce the load on the deodorizing device 70 on the downstream side.

In particular, in the waste treatment apparatus 1 of the first embodiment, the bag-shaped filter cloth 52 is placed over the exhaust port 17 provided at the top of the fermenter 10 from above so that the opening thereof faces downward in the vertical direction. By installing the filter cloth 52, the bottom side of the bag-shaped filter cloth 52 is located upward and the filter cloth 52 has an inner surface facing vertically downward, so that the dust that is blocked from passing by the inner surface of the filter cloth 52 falls down due to its own weight. Cheap. Furthermore, since the exhaust air from the exhaust port 17 of the fermenter 10 is vented from the inner surface to the outer surface of the bag-shaped filter cloth 52, the exhaust flow from the exhaust port 17 is directed to the inner surface of the bag-shaped filter cloth 52. As a result, the pressure of the exhaust flow causes the dust to collide with the inner surface of the bag-shaped filter cloth 52 and easily fall. Furthermore, the bag-shaped filter cloth 52 is flexible and thus expands with the exhaust flow from the fermenter 10 and contracts when the exhaust stops, making it easy for dust to fall. Since the opening side of the bag-shaped filter cloth 52 is in communication with the exhaust port 17, the dust that has fallen inside the bag of the filter cloth 52 can be returned to the fermenter 10 from the exhaust port 17. Therefore, it is difficult for dust to accumulate on the filter cloth 52, and the dust that has flowed into the bag-like filter cloth 52 is discharged from the opening (bag mouth) side of the bag-like filter cloth 52, thereby reducing the burden of maintenance. It can be reduced.

Furthermore, if the filter cloth 52 is bag-shaped, even if dust accumulates inside the bag of the filter cloth 52, by vibrating the filter cloth 52, the dust inside the filter cloth 52 can be removed through the opening of the filter cloth 52 (bag opening). ) can be easily discharged from the side. Therefore, even if dust accumulates inside the filter cloth 52, it can be easily removed, so maintenance of the filter cloth 52 can be facilitated.
That is, by vibrating the bag-shaped filter cloth 52 by hitting, pressing, shaking, or pulling it from the outside, dust adhering to the inside of the bag-shaped filter cloth 52 can be shaken off. The dust shaken off within the bag-shaped filter cloth 52 can be discharged from the opening (bag mouth) side of the bag-shaped filter cloth 52 and dropped into the fermentation tank 10 through the exhaust port 17 and returned. Therefore, without removing the filter cloth 52 from the exhaust port 17, it is possible to shake off the dust accumulated on the filter cloth 52 and return it to the fermenter 10, and the workload of maintaining the filter cloth 52 can be simplified.

Furthermore, according to the waste treatment apparatus 1 of the first embodiment, the colliding body 53 is a spherical body, so it can easily move around within the space of the blocking part 50 even if the exhaust flow from the fermenter 10 is weak. It is. Therefore, the effect of dropping dust can be increased.
Further, according to the waste treatment apparatus 1 of the first embodiment, the collision body 53 has the gap space 53a, which reduces the weight and has a structure that allows air circulation. Even if the exhaust flow is weak, it is easy to move around within the space of the blocking part 50. Therefore, the effect of dropping dust can be increased. In addition, by increasing the surface area, the contact rate and frequency of contact with the dust exhausted from the exhaust port 17 can be increased, and the effect of colliding with the dust and causing the dust to fall can be increased.

By the way, in FIGS. 1 to 5 of the first embodiment, the bag-shaped filter cloth 52 has a substantially spherical shape whose diameter gradually increases upward (bottom side, closed end side). When implementing this, the shape is not limited to that, and may be cylindrical, prismatic, dome-like, etc. For example, as shown in FIG. 6, the lower part of the bag opening side is It may have a cylindrical shape with a substantially constant diameter that is substantially the same as the diameter of the exhaust port 17, and may have a spherical or arcuate shape with the upper closed end side having a larger diameter than the lower side. This makes it easier for the colliding body 53 to move around in the wide space above, making it possible to enhance the effect of the dust falling by the colliding body 53. Further, in the first embodiment, the box-like lid 51 has a generally rectangular shape as a whole, but when carrying out the present invention, the shape is not limited to this, and the box-like lid 51 may have a dome shape, a columnar shape (cylindrical shape), an angular shape, etc. It may be formed into a cylindrical shape or the like. In the first embodiment, the exhaust port 57 is provided on the side surface of the bag-shaped lid 51, but when implementing the present invention, the exhaust port 17 of the bag-shaped lid 51 is provided on the top surface side. It's okay.

Here, in the waste treatment apparatus 1 of the first embodiment, the bag-shaped filter cloth 52 is detachably attached to the exhaust port 17 of the fermentation tank 10 in the blocking section 50, and the bag-shaped filter cloth 52 is formed of the bag-shaped filter cloth 52. However, when carrying out the present invention, the filtration filter is not limited to a bag-like one, and for example, as shown in FIG. A flat filter may be used as the filter 52A.
That is, as a first modification of the first embodiment, as shown in FIG. A blocking part 50 is constituted by a flat filter 52A provided on the side of the exhaust port 57 formed upward in the box-shaped lid 51 and a collision body 53 housed in the box-shaped lid 51. The collision body 53 housed in the closed space 55 formed between the filtration filter 52A and the exhaust port 17 moves up and down in the closed space 55 of the box-shaped lid 51 by the exhaust flow from the fermenter 10. You can also move around by doing this.

In modification example 1, a rectangular parallelepiped-shaped, rectangular tube-shaped, cylindrical, etc. lid with an open bottom is installed on the upper surface of the fermenter 10 so as to surround and cover the exhaust port 17 formed at the upper part of the fermenter 10. By doing so, a box-shaped lid 51 is formed on the upper surface of the fermenter 10, and a predetermined closed space 55 is defined between the box-shaped lid 51, the exhaust port 17, and the filtration filter 52A. There is. Moreover, the box-shaped lid 51 can be opened and closed by opening and closing an opening/closing lid 51a whose upper part can be freely sealed. have The box-shaped lid 51 is also designed to have an airtight structure in which the inside is isolated from the outside air, so that odor does not easily leak out.

The flat filter 52A installed in the upper part of the box-like lid 51 in a substantially horizontal direction has openings that are large enough to allow air circulation, that is, ventilation, but to prevent the passage of dust contained in the exhaust gas. is used and is removably attached inside the box-shaped lid 51 above the exhaust port 17, that is, on the side of the exhaust port 57 facing the exhaust port 17. Therefore, the exhaust gas flowing into the box-shaped lid 51 from the exhaust port 17 rises, passes from the bottom to the top of the flat filter 52A, that is, from the inner surface to the outer surface, and is discharged from the exhaust port 57. . In this way, the filtration filter 52A also has an inner surface facing vertically downward to prevent the passage of dust. The filtration filter 52A may be made of, for example, short fibers (spun yarn, spun yarn, etc.) made of synthetic fibers or natural fibers such as polypropylene, nylon, aromatic polyamide, vinylidene chloride, vinylon, cotton, etc., or long fibers (mulch fibers). (filament yarn, etc.), single fibers (monofilament yarn, etc.), split-type ultrafine fiber yarn, etc. may be used, and may be in the form of a lattice or net, or may be a filter cloth.

In the blocking part 50 according to the first modification, the exhaust port 17 in which the wire mesh 18 is installed is covered with a box-like lid 51 such as a cylinder with a bottom, and the upper part of the exhaust port 17 is placed inside the box-like lid 51. By installing the flat filter 52A, a closed space 55 is formed between the exhaust port 17 and the flat filter 52A inside the box lid 51, and a plurality of balls are placed in the closed space 55. A colliding body 53 of a shape is accommodated. Also in the first modification, the upper part of the box-shaped lid 51 can be opened by the open/close lid 51a which can be freely sealed, so that the upper part of the box-shaped lid 51 can be opened by the open/close lid 51a, and the flat filter 52A can be taken out. It is possible to clean or replace it.

In this manner, in the blocking section 50 according to the first modification, the exhaust port 17 is covered with the box-shaped lid 51 having an airtight structure, so that the exhaust gas rising from the exhaust port 17 provided at the upper part of the fermenter 10 is It enters the lower closed space 55 inside the lid 51. A flat filter 52A is installed inside the box-shaped lid 51 above the exhaust port 17, and an exhaust port 57 is provided at the top of the box-shaped lid 51. Since the pipe line 81 connected to the deodorizing device 70 is connected, the exhaust from the exhaust port 17 ascends through the closed space 55 inside the box-shaped lid 51, from the lower side to the upper side of the flat filter 52A. That is, it passes from the inner surface to the outer surface, is discharged from the exhaust port 57 of the box-shaped lid 51, and is introduced into the deodorizing device 70 via the conduit 81.

At this time, in the blocking section 50 according to the first modification, a plurality of ball-shaped collision bodies 53 are accommodated in a closed space 55 below the filtration filter 52A provided inside the box-shaped lid 51 that covers the exhaust port 17. Due to the exhaust flow from the exhaust port 17 formed in the upper part of the fermenter 10, a plurality of ball-shaped colliding bodies 53 rise and fall randomly in the closed space 55 inside the box-shaped lid 51. move and spread. As a result, dust floating in the exhaust gas flowing into the box-shaped lid 51 from the exhaust port 17 of the fermenter 10 collides with the colliding body 53 and falls. Further, the colliding body 53 collides with the inner surface of the box-shaped lid 51 and the inner surface (lower surface) of the filter 52A, and collides with and contacts the dust adhering to these inner surfaces, thereby causing the dust to fall. Furthermore, the dust attached to the inner surfaces of the box lid 51 and the filter 52A fall due to the vibration caused by the collision of the colliding body 53 with the inner surfaces of the box-shaped lid 51 and the filter 52A. In Modification 1 as well, the box-shaped lid 51 is placed so as to cover the upper side of the exhaust port 17 provided at the top of the fermenter 10, and the lower exhaust port 17 side is open. When the colliding body 53 collides with and comes into contact with dust inside the box 51, and when the colliding body 53 collides with the inner surface of the box-shaped lid 51 and the inner surface of the filtration filter 52A, the dust that falls is transferred to the exhaust port 17 by its own weight. It falls back into the fermenter 10 from there.

Furthermore, in Modification 1, a box-shaped lid 51 is placed to cover the upper side of the exhaust port 17 provided at the top of the fermenter 10, and a flat filter 52A is installed inside the box-shaped lid 51 above the exhaust port 17. When the exhaust flow from the exhaust port 17 is blown onto the filter 52A, dust collides with the inner surface (lower surface) of the filter 52A and falls, and the pressure of the exhaust flow causes dust to fall on the inner surface of the filter 52A. It is also possible to drop adhering dust.
In addition, a box-shaped lid 51 that forms a closed space 55 is installed to cover the upper side of the exhaust port 17 provided at the top of the fermenter 10, and a filtration filter 52A is installed above the exhaust port 17 inside the box-shaped lid 51. The filter 52A is provided above the exhaust port 17 so that the inner surface of the filter 52A, which prevents the passage of dust, is lower. By being oriented toward the inside of the filter 52A, dust that has reached the inner surface of the filter 52A easily falls due to gravity and returns into the fermenter 10 through the exhaust port 17.

As described above, in the first modification, the metal box-shaped lid 51 that covers the exhaust port 17, the flat filter 52A housed inside the box-shaped lid 51 and installed in the horizontal direction, and the box-shaped lid 51 The collision body 53 accommodated in a closed space 55 formed between the exhaust port 17 and the filtration filter 52A constitutes a blocking part 50, and the collision body 53 housed inside the box-shaped lid 51 By moving around inside the box-shaped lid 51 with the exhaust flow from the fermenter 10, the colliding body 53, which moves within the closed space 55 inside the box-shaped lid 51 due to the exhaust flow from the fermenter 10, Dust is dropped by colliding with dust floating in the exhaust gas, and even if dust adheres to the inner surfaces of the box-shaped lid 51 and filtration filter 52A by colliding with the inner surfaces of the box-shaped lid 51 and filtration filter 52A. let it fall. Then, the dust that has fallen inside the box-shaped lid 51 is returned to the fermenter 10 via the lower exhaust port 17.

That is, the waste treatment apparatus 1 according to the first modification includes a fermenter 10 as a treatment tank for decomposing waste with microorganisms, an exhaust section 71 for releasing exhaust gas from the fermenter 10 into the atmosphere, and a fermenter 10. The box-shaped lid 51 forms a closed space 55 that is provided in an exhaust passage through which exhaust gas from the fermenter 10 communicates with the exhaust section 71 and accommodates the colliding body 53 that is moved by the exhaust flow from the fermenter 10. A collision body 53 moving in a closed space 55 causes dust contained in the exhaust gas from the fermenter 10 to fall, and a blocking part 50 is provided to prevent the dust from passing through.

According to the waste treatment apparatus 1 according to the first modification, the blocker 50 is accommodated in the closed space 55 inside the box-like lid 51 and the exhaust flow from the fermenter 10 causes the closed space 55 inside the box-like lid 51 to be removed. The colliding body 53 that moves collides with the dust floating in the exhaust gas from the fermenter 10, causing the dust to fall, and also colliding with the inner surface of the box-shaped lid 51 and filter 52A that accommodate the colliding body 53. This will remove any dust that may be attached to it. Further, dust contained in the exhaust from the exhaust port 17 collides with the inner surface of the box-shaped lid 51 and the filter 52A, and falls. In addition, in Modification 1, a box-shaped lid 51 covers the upper part of the exhaust port 17 of the fermenter 10, and a flat filter 52A is installed above the exhaust port 17 inside the box-shaped lid 51. As a result, the filter 52A has an inner surface facing vertically downward, and dust that is blocked from passing by the inner surface of the filter 52A is likely to fall due to gravity. The dust that has fallen inside the box-like lid 51 is returned to the fermenter 10 through the exhaust port 17.
Therefore, since the filter does not collect dust, the burden of maintenance can be reduced.

Also in the first modification, the blocking part 50 covers the exhaust port 17 provided at the top of the fermenter 10 and allows dust contained in the exhaust to fall and return to the fermenter 10 from the exhaust port 17 . That is, the box-shaped lid 51 covers the upper part of the exhaust port 17 provided at the top of the fermenter 10, and the dust that has fallen inside the fermenter 10 is returned to the fermenter 10 from the exhaust port 17. Therefore, there is no need for a separate configuration and collection work to collect the fallen dust at the falling point, and maintenance management can be simplified.
In addition, the lower side of the box-shaped lid 51 is open to cover the exhaust port 17 from above, and the flat filter 52A is installed inside the box-shaped lid 51 at a position above the exhaust port 17. The dust rising from the filter 17 and reaching the inner surface of the filter 52A is made easy to fall due to its own weight, and the dust is returned to the fermentation tank 10 from the exhaust port 17 with a simple configuration. That is, a box-shaped lid 51 is provided to cover the exhaust port 17 provided at the top of the fermenter 10 from above, and a flat filter 52A is installed above the exhaust port 17 inside the box-shaped lid 51. The air is allowed to pass from the inner surface side (lower surface side) to the outer surface side (upper surface side) of the filter 52A, and the inner surface of the filter 52A faces downward, so that the air is prevented from passing through by the inner surface of the filter 52A. The blocked dust is made to fall easily by gravity, and the dust that has flowed into the inside of the box-like lid 51 is returned to the fermentation tank 10 from the exhaust port 17. Therefore, passage of dust can be effectively prevented. Moreover, since the blocking part 50 is provided on the upper surface of the fermenter 10, it does not take up any horizontal installation space.

Note that when exhaust gas is passed from the inner surface to the outer surface of the filter 52A, the inner surface corresponds to the air supply side, and the outer surface corresponds to the exhaust side.
Further, in the above modification 1, a filter 52A is provided on the exhaust port 57 side of the blocking portion 50, and the filter at this time may be, for example, a flat filter 52A made of mesh-like fibers. Although the explanation has been given using an example of use, when implementing the present invention, the shape is not limited to a flat plate shape, but may be a cylindrical shape or a bag shape. Even if the filtration filter 52A is provided on the exhaust port 57 side in this way, the collision body 53 housed in the box-shaped lid 51 can move around in the closed space 55 of the box-shaped lid 51 due to the exhaust flow from the fermenter 10. Since the dust floating in the exhaust air from the fermenter 10 collides with the inner surface of the box-shaped lid 51 and the surface of the filtration filter 52A, the dust falls, making it difficult for dust to accumulate on the filtration filter 52A. Even if it is installed, the frequency and burden of maintenance can be reduced.

By the way, in the first embodiment and the first modification, the filters 52 and 52A are provided in the blocking section 50 to further increase the dust removal rate and further reduce the load on the deodorizing device 70, but the present invention When carrying out the above, if there is little dust flying up from the fermenter 10, it is also possible to omit the bag-shaped filter cloth 52 or the flat filter 52A.
That is, as a second modification of the first embodiment, as shown in FIG. The collision body 53 constituting the blocking part 50 and housed in the box-shaped lid 51 moves around by rising and falling within the closed space 55 of the box-shaped lid 51 by the exhaust flow from the fermenter 10. Good too.

In modification example 2, the top surface of the fermenter 10 is installed so as to surround and cover each exhaust port 17 formed at the top of the fermenter 10 with a lid that is open at the bottom. A box-like lid 51 is formed on the inside, and a predetermined closed space 55 is defined by the box-like lid 51. This box-shaped lid 51 can also be opened and closed by opening and closing an opening/closing lid 51a whose upper part can be freely sealed. Further, as in the first embodiment, the side surface has an exhaust port 57 to which a conduit 81 connected to the deodorizing device 70 is connected (not shown in FIG. 7(b)). The box-shaped lid 51 is also designed to have an airtight structure in which the inside is isolated from the outside air, so that odor does not easily leak out. For example, as shown in FIG. 7(b), the box-shaped lid 51 according to the second modification is formed into a vertically elongated spherical shape, so that the contact surface with the collision body 53 can be widened, and the dust can be removed. Although accumulation can be prevented, when carrying out the present invention, the shape is not limited to this, and for example, it can be formed into a dome shape, a cylindrical shape, a rectangular tube shape, a rectangular parallelepiped shape, etc.

In the blocking part 50 according to the second modification, a closed space 55 is formed in the box-shaped lid 51 by covering the exhaust port 17 in which the wire mesh 18 is installed with a metal box-shaped lid 51. A plurality of ball-shaped collision bodies 53 are housed in 55 .
Also in the second modification, the upper part of the box-shaped lid 51 can be opened by the open/close lid 51a which can be freely sealed, so that the upper part of the box-shaped lid 51 can be opened by the open/close lid 51a to clean the inside or remove the colliding object 53. It is also possible to exchange.

In this manner, in the blocking unit 50 according to the second modification, the exhaust port 17 is covered with the box-shaped lid 51 having an airtight structure, so that the exhaust gas rising from the exhaust port 17 provided at the upper part of the fermenter 10 is The closed space 55 inside the lid 51 is entered. An exhaust port 57 is provided on the side surface of the box-shaped lid 51, and a conduit 81 connected to the deodorizing device 70 is connected to the exhaust port 57, so that the closed space 55 inside the box-shaped lid 51 is The inflowing exhaust gas is discharged from the exhaust port 57 of the box-shaped lid 51 and introduced into the deodorizing device 70 via the pipe line 81.

At this time, in the blocking part 50 according to the second modification, a plurality of ball-shaped collision bodies 53 are housed in the closed space 55 inside the box-shaped lid 51 that covers each exhaust port 17, so that the fermentation tank 10 is Due to the exhaust flow from the exhaust port 17 formed at the top, a plurality of ball-shaped colliding bodies 53 rise and fall in a closed space 55 within the box-shaped lid 51, moving and diffusing randomly. As a result, dust floating in the exhaust gas flowing into the box-shaped lid 51 from the exhaust port 17 of the fermenter 10 collides with the collision body 53 and falls. Furthermore, the collision body 53 collides with the inner surface of the box-shaped lid 51 and collides with and contacts the dust adhering thereto, causing the dust to fall. Furthermore, the vibration when the collision body 53 collides with the inner surface of the box-shaped lid 51 also causes dust attached thereto to fall. In Modification 2 as well, the box-shaped lid 51 is placed so as to cover the upper side of the exhaust port 17 provided at the top of the fermenter 10, and the lower exhaust port 17 side is open. When the colliding body 53 collides with and comes into contact with the dust inside, the dust that falls when the colliding body 53 collides with the box-shaped lid 51 falls back into the fermentation tank 10 from the exhaust port 17 due to its own weight. It will be done.

Furthermore, in the second modification, a box-shaped lid 51 is placed so as to cover the upper side of each exhaust port 17 provided at the top of the fermenter 10, and the exhaust flow from the exhaust port 17 is blown onto the box-shaped lid 51. It is also possible for the dust particles to collide with the inner surface of the box-shaped lid 51 and fall, or for the dust adhering to the inner surface of the box-shaped lid 51 to fall due to the pressure of the exhaust flow.
In addition, since the box-shaped lid 51 that forms the closed space 55 is installed to cover the upper side of the exhaust port 17 provided at the top of the fermenter 10, the box-shaped lid 51 has an inner surface facing downward. Dust that collides with the inner surface of the box-shaped lid 51 falls due to gravity and easily returns to the inside of the fermenter 10 through the exhaust port 17.

As described above, in the second modification, the blocking section 50 is configured by the metal box-shaped lid 51 that covers the exhaust port 17 and the collision body 53 housed inside the box-shaped lid 51. The collision body 53 housed inside moves around inside the box-shaped lid 51 due to the exhaust flow from the fermenter 10, and the collision moves within the closed space 55 inside the box-shaped lid 51 due to the exhaust flow from the fermenter 10. The body 53 collides with dust floating in the exhaust gas from the fermenter 10, causing the dust to fall, and also collides with the inner surface of the box-shaped lid 51, causing dust to adhere to the inner surface of the box-shaped lid 51. Even let it fall. Then, the dust that has fallen inside the box-like lid 51 is returned to the fermenter 10 via the lower exhaust port 17.

That is, in the waste treatment apparatus 1 according to the second modification, the fermenter 10 as a treatment tank in which waste is decomposed by microorganisms, the exhaust section 71 that discharges exhaust gas from the fermenter 10 into the atmosphere, and the fermenter 10 The box-shaped lid 51 forms a closed space 55 that is provided in an exhaust passage through which exhaust gas from the fermenter 10 communicates with the exhaust section 71 and accommodates the colliding body 53 that is moved by the exhaust flow from the fermenter 10. A collision body 53 moving in a closed space 55 causes dust contained in the exhaust gas from the fermenter 10 to fall, and a blocking part 50 is provided to prevent the dust from passing through.

According to the waste treatment apparatus 1 according to the second modification, the blocker 50 is accommodated in the closed space 55 inside the box-like lid 51 and the closed space 55 inside the box-like lid 51 is removed by the exhaust flow from the fermenter 10. The colliding body 53 that moves collides with the dust floating in the exhaust gas from the fermenter 10, causing the dust to fall, and colliding with the inner surface of the box-shaped lid 51 that houses the colliding body 53, causing the dust to fall there. Remove any adhering dust. Furthermore, dust contained in the exhaust from the exhaust port 17 collides with the box-shaped lid 51 and falls.
Also in the second modification, by covering the upper part of the exhaust port 17 of the fermenter 10 with the box-shaped lid 51, the dust that has fallen inside the box-shaped lid 51 can fall into the fermenter 10 through the exhaust port 17. be returned.
Therefore, since the filter does not collect dust, the burden of maintenance can be reduced.

Also in the second modification, the blocking part 50 covers the exhaust port 17 provided at the top of the fermenter 10 and allows dust contained in the exhaust to fall and return to the fermenter 10 from the exhaust port 17 . That is, the box-shaped lid 51 covers the upper part of the exhaust port 17 provided at the top of the fermenter 10, and the dust that has fallen inside the fermenter 10 is returned to the fermenter 10 from the exhaust port 17. Therefore, there is no need for a separate configuration and collection work to collect the fallen dust at the falling point, and maintenance management can be simplified.
In addition, since the box-shaped lid 51 covers the exhaust port 17 from above, the dust that rises from the exhaust port 17 and collides with the inner surface of the box-shaped lid 51 is likely to fall due to its own weight, and the fallen dust can be easily removed by the simple structure. can be returned to the fermenter 10 through the exhaust port 17. That is, by providing the box-shaped lid 51 so as to cover the exhaust port 17 provided at the upper part of the fermenter 10 from above, the box-shaped lid 51 has a downwardly facing inner surface, and the dust that collides therewith is prevented. It falls due to gravity and is returned to the fermenter 10 through the exhaust port 17. Therefore, passage of dust can be effectively prevented. Further, since the blocking part 50 is provided on the upper surface of the fermenter 10, no horizontal installation space is required.

Furthermore, in the waste treatment apparatus 1 of the first embodiment and modifications 1 and 2, the blocking part 50 is provided on the upper surface of the fermenter 10, and the exhaust gas provided on the upper surface of the fermenter 10 is Above the opening 17 are the bottom side (closed end side) of the bag-shaped filter cloth 52 opposite to the opening, the inner surface side (lower side) of the flat filter 52A, and the top surface of the box-shaped lid 51. By positioning the side, the exhaust gas from the fermenter 10 rises from the exhaust port 17, and the dust that reaches them falls due to gravity and easily returns to the fermenter 10 via the exhaust port 17. In this case, the exhaust port 17 is formed in the upper part of the side surface of the fermenter 10, the blocking part 50 is provided in the upper part of the side part of the fermenter 10, and the box-shaped lid 51 and bag-shaped filter cloth 52 are vertically disposed. The dust dropped by the colliding body 53, which is opened in a direction substantially perpendicular to the direction, covers the exhaust port 17, and is housed in a closed space 55 formed by a box-like lid 51 and a bag-like filter cloth 52 in the vertical direction. It may be made to drop downward in a substantially horizontal direction perpendicular to , and be returned to the fermenter 10 via the exhaust port 17.

That is, as a third modification of the first embodiment, as shown in FIG. A bag-shaped filter cloth 52 is provided on the upper side of the side surface, and a bag-shaped filter cloth 52 is detachably attached to the exhaust port 17 of the fermenter 10 inside the box-shaped lid 51, and a collision body 53 is housed inside the bag-shaped filter cloth 52. do.

In this third modification, an exhaust port 17 is formed above one side of the fermenter 10, and a box-shaped lid 51 covering the exhaust port 17 is provided above the one side of the fermenter 10. , an exhaust port 57 is formed at the top of the box-shaped lid 51. Therefore, the exhaust gas in the fermenter 10 is discharged from the side surface of the fermenter 10 through the exhaust port 17, flows into the blocking part 50 provided on the side surface of the fermenter 10, and passes through the bag-shaped filter of the blocking part 50. It passes from the inner surface to the outer surface of the cloth 52 and rises toward the exhaust port 57 at the upper part of the blocking part 50 . At this time, the colliding body 53 moves around inside the bag-shaped filter cloth 52 due to the exhaust flow from the exhaust port 17, and the colliding body 53 collides with dust and collides with the bag-shaped filter cloth 52, causing the bag-shaped filter cloth 52 to vibrate. Dust floating inside the bag of the filter cloth 52 and dust attached to the inner surface of the bag-shaped filter cloth 52 fall. Moreover, the exhaust flow from the exhaust port 17 is blown against the inner surface of the bag-shaped filter cloth 52, and the dust collides with the inner surface of the bag-shaped filter cloth 52 due to the pressure of the exhaust flow and falls. Furthermore, because of its flexibility, the bag-shaped filter cloth 52 expands due to the exhaust flow from the fermenter 10 and contracts when the exhaust stops, thereby removing dust attached to the inner surface of the filter cloth 52. Fall. Further, even if dust adheres to the downward facing inner surface of the bag-shaped filter cloth 52, it tends to fall downward due to its own weight.

Here, in the third modification, the bag-shaped filter cloth 52 has a curved surface shape and an arc shape as shown in FIG. The lower part thereof is inclined, that is, the lower part thereof has an inclined part 58 which is inclined downward toward the exhaust port 17 side. Therefore, the dust that has fallen inside the bag-shaped filter cloth 52 falls toward the exhaust port 17 side of the fermenter 10 along the slope of the lower slope portion 58, and from the exhaust port 17 to the fermenter 10. can be returned to.

Therefore, in the waste treatment apparatus 1 according to the third modification, dust is difficult to accumulate on the bag-shaped filter cloth 52, so that the maintenance load can be reduced.
Also in the waste treatment apparatus 1 according to the third modification, the blocking part 50 covers the exhaust port 17 provided on the upper side of the fermenter 10 and allows the dust contained in the exhaust to fall from the exhaust port 17 to the fermenter 10. return. That is, the bag-shaped filter cloth 52 containing the colliding body 53 is placed with the bag opening side facing sideways over the exhaust port 17 provided on the upper side of the fermenter 10, thereby covering the exhaust port 17. By forming the sloped part 58 that slopes downward toward the exhaust port 17 on the lower side of the filter cloth 52, the dust that has fallen inside the bag-shaped filter cloth 52 is directed toward the exhaust port 17 by the sloped part 58. It is dropped and returned to the fermenter 10 through the exhaust port 17. Therefore, there is no need for a separate configuration and collection work to collect the fallen dust at the falling point, and maintenance management can be simplified.
Furthermore, the bag-shaped filter cloth 52 containing the colliding body 53 is placed over the exhaust port 17 provided on the upper side of the fermenter 10 with the bag opening facing sideways, thereby covering the exhaust port 17 and removing the bag-shaped filter cloth. Since the cloth 52 has an inner surface facing vertically downward, dust that rises inside the bag-shaped filter cloth 52 and is blocked from passing by the vertically downward-facing inner surface of the bag-shaped filter cloth 52 tends to fall due to its own weight. Then, the dust that has fallen inside the bag-shaped filter cloth 52 falls toward the exhaust port 17 at the inclined portion 58 and is returned to the fermenter 10 from the exhaust port 17. Therefore, it is difficult for dust to accumulate on the bag-shaped filter cloth 52.
In addition, in modification 3, since the blocking part 50 is provided on the lateral side of the fermenter 10, no vertical installation space is required.

Also in the third modification, if the filter cloth 52 is bag-shaped, even if dust accumulates inside the bag of the filter cloth 52, the dust inside the filter cloth 52 can be removed by vibrating the filter cloth 52. It can be easily discharged from the opening (bag mouth) side of 52. Therefore, even if dust accumulates inside the filter cloth 52, it can be easily removed, so maintenance of the filter cloth 52 can be facilitated.
In the box-shaped lid 51 according to the third modification, the side surface opposite to the exhaust port 17 side of the fermenter 10 can be opened by a freely sealable opening/closing lid 51a; 51a, and put a hand inside the box-shaped lid 51 and apply vibrations to the bag-shaped filter cloth 52 provided inside the box-shaped lid 51 by hitting, pressing, shaking, or pulling it from the outside. By doing so, the dust attached to the inside of the bag-shaped filter cloth 52 can be shaken off, and the dust shaken off inside the bag-shaped filter cloth 52 can be removed from the opening (bag mouth) side of the filter cloth 52. It can be discharged from the tank and dropped back into the fermenter 10 through the exhaust port 17. Therefore, without removing the filter cloth 52 from the exhaust port 17, it is possible to shake off the dust accumulated on the filter cloth 52 and return it to the fermenter 10, and the workload of maintaining the filter cloth 52 can be reduced.

In this modification 3, the exhaust port 57 is provided on the top side of the bag-like lid 51, but when implementing the present invention, the exhaust port 17 of the bag-like lid 51 is provided on the side surface side. Alternatively, it may be provided on the lower surface side. Further, even when the blocking portion 50 is provided above the side surface of the fermenter 10 as in the third modification, instead of the bag-shaped filter cloth 52 attached to the exhaust port 17, as in the first modification, , a filter 52A may be attached to the exhaust port 57 side of the blocking portion 50.

Furthermore, in Modification 3, a bag-shaped filter cloth 52 is detachably attached to the exhaust port 17 of the fermenter 10 to further increase the dust removal rate and further reduce the load on the deodorizing device 70. If there is little dust flying up from the tank 10, it is also possible to omit the filter cloth 52.
That is, as a fourth modification of the first embodiment, the blocking portion 50 is configured by a metal box-shaped lid 51 that covers the exhaust port 17 and the collision body 53 housed in the box-shaped lid 51, and the box-shaped lid 51 The colliding body 53 housed inside the fermenter 10 may be moved up and down in the closed space 55 of the box-shaped lid 51 by the exhaust flow from the fermenter 10 . As a fourth modification, as shown in FIG. 9, an exhaust port 17 is provided above one side of the fermenter 10, and a box-shaped lid 51 covering the exhaust port 17 is provided above the one side of the fermenter 10. The collision body 53 is housed inside the box-shaped lid 51.

In the fourth modification, a box-shaped lid body with side openings is installed on the side surface of the fermenter 10 so as to surround and cover each exhaust port 17 formed above the side surface of the fermenter 10. A lid 51 is formed on the side of the fermentation tank 10, defining a predetermined closed space 55, and the side thereof can be opened and closed by opening and closing the lid 51a which can be freely sealed. Further, the upper surface side has an exhaust port 57 to which a conduit 81 connected to the deodorizing device 70 is connected.
In the blocking part 50 according to the fourth modification, a closed space 55 is formed in the box-shaped lid 51 by covering the exhaust port 17 in which the wire mesh 18 is installed with a metal box-shaped lid 51. A plurality of ball-shaped collision bodies 53 are housed in 55 .

Therefore, the exhaust gas from the exhaust port 17 of the fermenter 10 is discharged from the side surface of the fermenter 10 and flows into the blocking part 50 provided on the side surface of the fermenter 10, and the exhaust gas is discharged from the exhaust port 17 of the fermenter 10. It rises towards the mouth 57. At this time, the colliding body 53 moves around within the closed space 55 of the box-shaped lid 51 due to the exhaust flow from the exhaust port 17, and the collision of the colliding body 53 with dust and the collision vibration against the inner surface of the box-shaped lid 51 cause the box Dust floating inside the box-shaped lid 51 and dust attached to the inner surface of the box-shaped lid 51 fall. Further, since the exhaust air flow from the exhaust port 17 is blown onto the inner surface of the box-shaped lid 51, dust collides with the inner surface of the box-shaped lid 51 and falls due to the pressure of the exhaust flow. Furthermore, even if dust adheres to the downward facing inner surface of the box-shaped lid 51, it tends to fall downward due to its own weight.

Here, the box-shaped lid 51 according to Modification 4 can be formed into a dome shape, a columnar shape, a rectangular parallelepiped shape, etc., but as shown in FIG. 9, preferably, the upper part has a curved shape. It has an inclined part 58 at the lower part of the inside thereof which is inclined downward toward the exhaust port 17 side. As a result, the dust that has fallen inside the box-shaped lid 51 falls toward the exhaust port 17 side of the fermenter 10 along the slope of the lower slope portion 58 and enters the fermenter 10 from the exhaust port 17. be returned.
In addition, since the upper part of the box-shaped lid 51 has a curved surface shape, the contact surface with the collision body 53 can be widened, and the accumulation of dust can be prevented.
Therefore, since the filter does not collect dust, the burden of maintenance can be reduced.

Also in the waste treatment apparatus 1 according to the fourth modification, the blocking part 50 is configured by the metal box-shaped lid 51 that covers the exhaust port 17 and the collision body 53 accommodated in the box-shaped lid 51, and the box-shaped lid 51 By moving the colliding body 53 housed inside the closed space 55 formed by the box-shaped lid 51 by the exhaust flow from the fermenter 10, the interior of the box-shaped lid 51 is closed by the exhaust flow from the fermenter 10. The collision body 53 moving in the space 55 collides with the dust floating in the exhaust gas from the fermenter 10 and the inner wall surface of the box-shaped lid 51, causing the dust floating in the exhaust gas from the fermenter 10 to fall. , even if dust adheres to the inner surface of the box-like lid 51, it is dropped. Then, the dust that has fallen inside the box-shaped lid 51 falls toward the exhaust port 17 along the slope of the lower slope portion 58 and is returned to the fermenter 10 via the exhaust port 17.

In the waste treatment apparatus 1 according to the fourth modification, the blocking part 50 covers the exhaust port 17 provided above the side surface of the fermenter 10 and allows dust contained in the exhaust to fall from the exhaust port 17 into the fermenter 10. return. That is, the opening side of the box-shaped lid 51 containing the colliding body 53 is turned sideways to cover the exhaust port 17 provided above the side surface of the fermenter 10, and the box-shaped lid 51 is opened downward toward the exhaust port 17. By forming the inclined part 58 which is inclined to , the dust falling inside the box-shaped lid 51 is caused to fall toward the exhaust port 17 at the inclined part 58 and returned to the fermentation tank 10 from the exhaust port 17. Therefore, there is no need for a separate configuration and collection work to collect the fallen dust at the falling point, and maintenance management can be simplified. In particular, since the blocking part 50 is provided on the horizontal side surface of the fermenter 10, no vertical installation space is required.

By the way, in the waste treatment apparatus 1 of the first embodiment and the first to fourth modifications described above, the waste treatment apparatus 1 is housed in the closed space 55 of the predetermined volume of the blocking part 50 and moves within the closed space 55 by the exhaust flow from the fermenter 10. The colliding body 53 collides with dust floating in the exhaust gas from the fermenter 10, causing the dust to fall, and colliding with the inner surface forming a closed space 55 of a predetermined volume that accommodates the colliding body 53, causing the dust to fall. Although the structure is simple, the dust adhering to the fermenter is dropped and the fallen dust is returned to the fermenter 10 from the exhaust port 17, but when carrying out the present invention, the dust is collected at the point where the dust falls. It may also be a configuration.
That is, in Embodiment 1 and Modifications 1 to 4, the box-shaped lid 51 and bag-shaped filter cloth 52 of the blocking section 50 cover the exhaust port 17, so that the inside of the closed space 55 formed by the box-shaped lid 51 and the inside of the closed space 55 formed by the box-shaped lid 51 are Although the structure is such that dust falls in a closed space 55 formed by a bag-shaped filter cloth 52 and returns to the fermenter 10 through the exhaust port 17, when carrying out the present invention, for example, A structure may also be adopted in which a blocking part 50 is provided at the end of the pipe attached to the exhaust port 17 and the dust that falls there is discharged from an outlet separate from the exhaust port 17.

[Embodiment 2]
Next, a waste treatment apparatus 1 according to a second embodiment of the present invention will be described with reference to FIGS. 10 and 11. Similarly to the first embodiment, the second embodiment of the present invention also exemplifies the case where the waste treatment device of the present invention is applied to a bio-type composter.
The waste treatment apparatus 1 of the second embodiment includes a fermenter 10 as a treatment tank that decomposes waste using microorganisms, an exhaust section 71 that discharges exhaust gas from the fermenter 10 into the atmosphere, and a The fermenter 10 is equipped with a bag-shaped filter cloth 52 that is provided in an exhaust passage communicating with the exhaust section 71 and is attached to the exhaust port 17 of the fermenter 10 to allow the exhaust from the fermenter 10 to pass from the inner surface to the outer surface. A blocking portion 50 is provided for blocking the passage of dust contained in the exhaust gas from the exhaust gas.

In Embodiment 1 and Modifications 1 to 4 described above, the collision body 53 is accommodated in the closed space 55 formed by the box-shaped lid 51 and the bag-shaped filter cloth 52 of the blocking part 50, and the collision body 53 is housed in the closed space 55 formed by the box-shaped lid 51 of the blocking part 50 and the bag-shaped filter cloth 52, and the The colliding body 53 that moves in the closed space 55 with the current causes the dust to fall and prevent the dust from passing through, thereby causing the dust to accumulate on the inner surface of the box-shaped lid 51 and the inner surface of the bag-shaped filter cloth 52 that constitute the blocking section 50. By preventing this, the maintenance load is reduced.
In contrast, in the second embodiment, the dust in the exhaust from the fermenter 10 is prevented from passing through only by the bag-shaped filter cloth 52 that allows the exhaust from the fermenter 10 to pass from the inner surface to the outer surface. It is. The configuration is the same as that of the first embodiment, except that the collision body 53 is not housed in the bag of the bag-shaped filter cloth 52, so redundant explanation will be omitted here, and only the different parts will be explained.

As shown in FIG. 10, in the second embodiment, a metal box-shaped lid 51 covers the exhaust port 17 of the fermenter 10, and a metal box-shaped lid 51 is housed inside the box-shaped lid 51 and is detachably attached to the exhaust port 17. The blocking portion 50 is configured with the bag-shaped filter cloth 52 and allows the exhaust gas from the exhaust port 17 of the fermenter 10 to pass from the inside of the bag-shaped filter cloth 52 to the outside of the bag. The bag-shaped filter cloth 52 prevents dust contained in the exhaust from passing from the inner surface to the outer surface.

In the second embodiment, the bag-shaped filter cloth 52 is placed so as to cover the upper side of the exhaust port 17 provided on the upper surface of the fermenter 10, and the bag-shaped filter cloth 52 is placed vertically downward on the exhaust port 17 side. The opening prevents the dust in the exhaust gas that has flowed into the bag of the bag-shaped filter cloth 52 from passing from the inner surface to the outer surface of the filter cloth 52. Because the bag-shaped filter cloth 52 has an inner surface, the dust that has been pressed by the exhaust flow against the vertically downward inner surface of the bag-shaped filter cloth 52 tends to fall under its own weight when the exhaust stops, and the dust falls into the bag of the bag-shaped filter cloth 52. The dust that has flowed in can be returned into the fermenter 10 through the exhaust port 17.

That is, by attaching the bag-shaped filter cloth 52 to the exhaust port 17 provided on the upper surface of the fermenter 10 from above so that the opening faces downward in the vertical direction, the downward direction of the filter cloth 52 is Even if dust adheres to the inner surface, it will easily fall off due to gravity. Further, the exhaust gas from the exhaust port 17 of the fermenter 10 flows in through the downwardly facing opening of the bag-shaped filter cloth 52, rises, and passes from the inner surface to the outer surface of the bag-shaped filter cloth 52. As a result, the exhaust flow from the exhaust port 17 is blown against the inner surface of the bag-shaped filter cloth 52, and the dust contained in the exhaust gas collides with the inner surface of the bag-shaped filter cloth 52 due to the pressure of the exhaust flow, making it easy to fall. There are also things. In addition, due to its flexibility, the bag-shaped filter cloth 52 expands due to the exhaust flow from the fermenter 10 and contracts when the exhaust stops, thereby removing dust attached to the inner surface of the bag-shaped filter cloth 52. is likely to fall.
By attaching the filter cloth 52 to the exhaust port 17 with the bag opening side facing downward, the dust that has fallen inside the filter cloth 52 falls from the exhaust port 17 to the fermenter 10 and is returned.
Therefore, since it is possible to prevent dust from accumulating on the filter cloth 52, the workload of maintaining the filter cloth 52 can be reduced.

That is, in the waste treatment apparatus 1 of the second embodiment, the bag-shaped filter cloth 52 is placed over the exhaust port 17 provided on the top surface of the fermenter 10 from above so that the opening thereof faces downward in the vertical direction. Since the bottom side of the bag-shaped filter cloth 52 is located upward and the filter cloth 52 has an inner surface facing vertically downward, the dust that is blocked from passing by the inner surface of the filter cloth 52 falls due to its own weight. It's easy to do. Furthermore, since the exhaust air from the exhaust port 17 of the fermenter 10 is vented from the inner surface to the outer surface of the bag-shaped filter cloth 52, the exhaust flow from the exhaust port 17 is directed to the inner surface of the bag-shaped filter cloth 52. By being blown to the side, the pressure of the exhaust flow causes the dust to collide with the inner surface of the bag-shaped filter cloth 52 and easily fall. Further, if the bag-shaped filter cloth 52 is flexible, it is easy to cause dust to fall due to the movement of expanding due to the exhaust flow from the fermenter 10 and contracting when the exhaust is stopped. Since the opening side of the bag-shaped filter cloth 52 is in communication with the exhaust port 17, the dust that has fallen inside the bag of the filter cloth 52 can be returned to the fermenter 10 from the exhaust port 17. Therefore, it is difficult for dust to accumulate on the filter cloth 52, and the dust that has flowed into the bag-like filter cloth 52 is discharged from the opening (bag mouth) side of the bag-like filter cloth, so that the burden of maintenance can be further reduced.

If the filter cloth 52 is bag-shaped, even if dust accumulates inside the bag of the filter cloth 52, by vibrating the filter cloth 52, the dust inside the filter cloth 52 can be removed from the opening of the filter cloth 52 (bag opening). ) can be easily discharged from the side. Therefore, even if dust accumulates inside the filter cloth 52, it can be easily removed, so maintenance of the filter cloth 52 can be facilitated.
That is, as shown in FIG. 11, the bag-shaped filter cloth 52 is vibrated by hitting, pressing, shaking, pulling, etc. from the outside to shake off the dust attached to the inside of the bag-shaped filter cloth 52. In addition, the dust shaken off in the bag of the bag-shaped filter cloth 52 can be discharged from the opening (bag opening) side of the filter cloth 52 and dropped back into the fermenter 10 from the exhaust port 17. can. Therefore, without removing the filter cloth 52 from the exhaust port 17, it is possible to shake off the dust accumulated on the filter cloth 52 and return it to the fermenter 10, and the workload of maintaining the filter cloth 52 can be reduced.

As shown in FIG. 11, in the second embodiment as well, the upper part of the box-like lid 51 can be opened by the open/close lid 51a which can be freely sealed, so that the upper part of the box-like lid 51 can be opened by opening the open/close lid 51a. , the dust accumulated inside the bag-like filter cloth 52 is shaken out by inserting a hand inside the box-like lid 51 and applying vibrations by hitting, pressing, shaking, or pulling the bag-like filter cloth 52. It can be easily dropped. That is, with the bag-shaped filter cloth 52 attached to the exhaust port 17, the dust accumulated inside the bag-shaped filter cloth 52 can be shaken off, and the clogging of the filter cloth 52 can be easily cleared. Since the bag-shaped filter cloth 52 is placed over each exhaust port 17 of the fermenter 10 with its opening facing downward, the dust shaken into the bag of the bag-shaped filter cloth 52 is absorbed by its own weight. is returned to the fermenter 10 from the exhaust port 17. Therefore, maintenance for removing dust attached to the filter cloth 52 can be facilitated.

As described above, maintenance of the bag-shaped filter cloth 52 is carried out by, for example, measuring and detecting the pressure inside the box-shaped lid 51, which has an airtight structure, and the pressure of the exhaust gas after passing through the box-shaped lid 51. When the threshold is exceeded, the bag-shaped filter cloth 52 is manually vibrated as described above, so that the dust adhering to the inside of the bag-shaped filter cloth 52 falls downward and is returned to the fermenter 10. Alternatively, a vibrating means that is activated by a drive to vibrate the bag-shaped filter cloth 52 may be provided, and the vibrating means causes the bag-shaped filter cloth 52 to vibrate and adhere to the inside of the bag-shaped filter cloth 52. The dust may be shaken off and returned to the fermenter 10.

In addition, even if the filter cloth 52 becomes clogged with fine dust and the pressure loss increases due to long-term use, the bag-shaped filter cloth 52 can be attached and detached from the exhaust port 17 of the fermenter 10 using the fitting 54. It is also possible to remove the bag-shaped filter cloth 52 from the exhaust port 17 of the fermenter 10 to clean or replace the bag-shaped filter cloth 52.

In this manner, according to the waste treatment apparatus 1 of the second embodiment, the fermenter 10 serving as a treatment tank for decomposing waste by microorganisms is communicated with the exhaust section 71 that discharges the exhaust gas from the fermenter 10 into the atmosphere. A blocking part 50 that prevents the passage of dust in the exhaust gas from the fermenter 10 is provided in the exhaust passage, and the blocking part 50 has a bag-shaped filter cloth 52 as a filtration filter. The bag-like filter cloth 52 has an inner surface facing vertically downward to prevent dust from passing through.
Therefore, the dust contained in the exhaust gas that has flowed into the bag from the opening side of the bag-shaped filter cloth 52 is prevented from passing from the inner surface to the outer surface of the bag-shaped filter cloth 52. Since the vertically downward facing inner surface of 52 prevents the rising dust in the exhaust gas from passing through, it is possible to cause the dust to fall under its own weight. Therefore, since it is difficult for dust to accumulate on the bag-shaped filter cloth 52, the burden of maintenance can be reduced.

According to the waste treatment apparatus 1 of the second embodiment, the blocking part 50 is arranged so that the bag-shaped filter cloth 52 as a filtration filter covers the exhaust port 17 provided on the upper side of the fermentation tank 10 as a processing tank. The dust contained in the exhaust air is dropped and returned to the fermenter 10 through the exhaust port 17.
That is, a bag-shaped filter cloth 52 is placed so as to cover the upper side of the exhaust port 17 provided on the upper surface of the fermenter 10, and the filter cloth 52 is opened downward, so that the air passes through the downward inner surface of the filter cloth 52. The dust that is blocked falls down by gravity and easily returns to the fermenter 10 through the exhaust port 17. Therefore, even though the exhaust air from the exhaust port 17 of the fermenter 10 flows into the bag of the bag-shaped filter cloth 52 that covers the exhaust port 17 of the fermenter 10, the downward inner surface of the filter cloth 52 prevents the air from being contained in the exhaust gas. The dust is prevented from passing from the inner surface to the outer surface of the bag-shaped filter cloth 52, falls down inside the bag under its own weight, and is returned to the fermenter 10 through the exhaust port 17. In addition, if the bag-shaped filter cloth 52 is made of a flexible material, it expands with the exhaust flow from the fermenter 10 and contracts when the exhaust stops, thereby shaking off dust and returning it to the fermenter 10. It is also possible to return it.
Therefore, since it is difficult for dust to accumulate on the filter cloth 52, the burden of maintenance can be reduced.

Also in the waste treatment apparatus 1 of the second embodiment, the bag-shaped filter cloth 52 that opens vertically downward covers the exhaust port 17 provided at the upper position of the fermenter 10 from above, and the bag-shaped filter cloth 52 opens vertically downward. Since the dust falling on the inside of the cloth 52 due to its own weight is dropped into the exhaust port 17 and returned to the fermentation tank 10, there is no need for a separate structure and collection work to collect the fallen dust at the falling point, and maintenance management can be facilitated. Furthermore, since the blocking part 50 is provided on the upper surface of the fermenter 10, no horizontal installation space is required.

According to the waste treatment apparatus 1 of the second embodiment, the blocking section 50 has a bag-shaped filter cloth 52 that is attached to the exhaust port 17 of the fermenter 10 and filters dust. The exhaust air is passed from the inner side to the outer side of the bag-shaped filter cloth 52, and dust is filtered during that time. By vibrating the filter cloth 52, the dust inside the bag-shaped filter cloth 52 can be easily shaken off and discharged from the bag opening side. Therefore, even if dust is accumulated on the filter cloth 52, it can be easily removed, and maintenance of the filter cloth 52 can be facilitated.
That is, by vibrating the bag-shaped filter cloth 52 by hitting, pressing, shaking, or pulling it from the outside, dust accumulated on the inside of the bag-shaped filter cloth 52 can be shaken off. The dust shaken off within the bag-shaped filter cloth 52 can be dropped into the fermenter 10 through the exhaust port 17 and returned. Therefore, without removing the filter cloth 52 from the exhaust port 17, it is possible to shake off the dust accumulated on the filter cloth 52 and return it to the fermenter 10, and the workload of maintaining the filter cloth 52 can be reduced.

By the way, in the waste treatment apparatus 1 of the second embodiment, as in the first embodiment, the blocking part 50 is provided on the upper surface of the fermenter 10, and the exhaust port formed on the upper surface of the fermenter 10 is closed. 17 is covered above, but when implementing the present invention, the blocking portion 50 is provided on the side surface of the fermenter 10 and formed on the side surface of the fermenter 10, as in the case of Modification 3 above. The filter cloth 52 may cover the exhaust port 17, and in this case, the lower surface side of the bag-shaped filter cloth 52 has an inclined portion 58.
Furthermore, in the same way as in the above modification 1, instead of the bag-shaped filter cloth 52 attached to the exhaust port 17, a flat filter 52A is provided inside the box-shaped lid 51 above the exhaust port 17, and the filtration The vertically downward facing inner surface of the filter 52A may block rising dust in the exhaust gas and allow the dust to fall under its own weight.

Further, the waste treatment apparatus 1 of the second embodiment has a simple structure in which the dust that has fallen due to its own weight inside the bag-shaped filter cloth 52 is allowed to fall from the exhaust port 17 to the fermentation tank 10 and returned. When performing this, a configuration may be adopted in which the dust is collected at the point where the dust falls. That is, in the second embodiment, the bag-shaped filter cloth 52 of the blocking section 50 covers the exhaust port 17, so that the dust that falls inside the bag of the bag-shaped filter cloth 52 passes through the exhaust port 17 and reaches the fermenter 10. However, when carrying out the present invention, for example, a blocking part 50 may be provided at the end of the pipe attached to the exhaust port 17 to prevent the dust falling there from being separated from the exhaust port 17. It is also possible to have a structure in which the liquid is discharged from the discharge port.

In carrying out the present invention, the structure, material, material, size, connection relationship, etc. of the other parts of the waste treatment apparatus 1 are not limited to the above-described embodiments and modifications.
For example, in the description of the above embodiment, the deodorizing device 70 uses a porous material such as activated carbon (adsorption method) and a catalyst (catalytic oxidation method). It is also possible to use a deodorizing method, a water scrubber method, etc.
In addition, in the description of the above embodiment, the air blower 30 is configured to forcefully feed air into the fermentation tank 10, but when implementing the present invention, as long as the configuration is such that air can be taken into the fermentation tank 10, air can be introduced from the exhaust side. Air may be taken into the fermenter 10 by taking in air.

Furthermore, in the waste treatment apparatus 1 of the first and second embodiments and the first to fourth modified examples, a box-like lid 51 or a bag-like filter cloth is provided to cover the exhaust port 17 provided at the upper position of the fermenter 10. However, when carrying out the present invention, if the dust contained in the exhaust from the fermenter 10 can be dropped between the fermenter 10 and the deodorizer 70, the blocking part 50 can be used to exhaust the air. It does not have to be adjacent to the mouth 17. For example, the bag-shaped filter cloth 52 may have its mouth side facing upward, and the exhaust gas may be allowed to descend into the bag-shaped filter cloth 52 and pass from its inner surface to its outer surface. Even if dust flows into the bag from the opening side of the bag-shaped filter cloth 52, the dust accumulates inside the bag-shaped filter cloth 52 because it is blocked from passing from the inner surface to the outer surface. Since the dust accumulated in the filter cloth 52 can be discharged from the opening side of the bag-shaped filter cloth 52, the burden of maintenance can be reduced.

In the description of the embodiment described above, the rotating shaft 21 of the stirrer 20 is arranged in the fermenter 10 so as to extend in the left-right direction, but when implementing the present invention, it is arranged to extend in the vertical direction to save space. It is also possible to use a vertical fermenter 10 that can be installed in a.
In addition, when carrying out the present invention, it is also possible to provide the inlet 41 on the side surface side, and it is also possible to make the inlet 41 and the outlet 43 serve as both.
In the description of Embodiments 1 and 2 and Modifications 1 to 4 above, a plurality of (two in the figure) exhaust ports 17 were provided in the upper wall of the fermenter 10. The number may be one or three or more. Further, the box-shaped lid 51 covering the exhaust port 17 is not limited to a form that covers a plurality of exhaust ports 17 all at once, but may be a form in which a box-shaped lid 51 is installed at each exhaust port 17. Furthermore, the exhaust port 17 may be mounted in such a manner that a plurality of exhaust ports 17 are collectively covered with a bag-shaped filter cloth 52.
Furthermore, although the waste treatment apparatus 1 of the above embodiment has been described on the assumption that it is for business use where a large amount of waste is to be processed, it is also applicable to household use.

In Embodiments 1 and 2 and Modifications 1 to 4, an example of a fermentation and decomposition treatment apparatus using microorganisms is used as a waste treatment apparatus. It can also be applied to dry-type composters that reduce volume. Even in equipment that reduces the volume of waste by drying it at high temperatures, the treatment tank is ventilated because it is dried by blowing hot air, and dust is removed from the exhaust air from the treatment tank that dries the waste. As in the case of Embodiment 1 and Modifications 1 to 4, the colliding body moved by the exhaust flow from the processing tank that reduces the volume of waste by drying is housed in a closed space of a predetermined volume. The exhaust flow from the processing tank communicates with the blocking part that prevents the dust from passing through by causing the dust contained in the exhaust from the processing tank to fall by a colliding body that moves in a closed space due to the exhaust flow from the processing tank. By providing it in the passage, the blocking part can remove dust from the exhaust gas. A dry composter as a waste processing device has a processing tank that reduces the volume of waste by drying, an exhaust section that releases the exhaust gas from the processing tank into the atmosphere, and a communication section for the exhaust gas from the processing tank to communicate with the exhaust section. The apparatus is provided with a blocking part that is provided in the exhaust passageway and causes dust contained in the exhaust gas from the processing tank to fall by a colliding body that moves in the closed space due to the exhaust flow and prevents the dust from passing through.

In addition, as in the second embodiment, a bag-shaped filter cloth is attached to the exhaust port of the processing tank for reducing the volume of waste by drying, and the exhaust from the processing tank is vented from the inner surface to the outer surface. By providing a blocking part that blocks the passage of dust contained in the exhaust gas from the processing tank in the exhaust passage through which the exhaust gas from the processing tank communicates with the exhaust part, the blocking part can remove dust from the exhaust gas. A dry composter as a waste treatment device has a processing tank that reduces the volume of waste by drying it, an exhaust section that releases the exhaust gas from the processing tank into the atmosphere, and an exhaust section that communicates the exhaust gas from the processing tank to the exhaust section. and a blocking section that prevents dust contained in the exhaust from the processing tank from passing through using a bag-like filter cloth that is provided in the exhaust passageway and allows the exhaust from the processing tank to pass from the inner surface to the outer surface. .

1 Waste treatment equipment 10 Fermentation tank (processing tank)
50 Blocking part 55 Closed space 52 Filter cloth (filtration filter)
52A Filter 53 Collider 71 Exhaust part

Claims (7)

a treatment tank that decomposes waste with microorganisms or reduces its volume by drying;
an exhaust section that discharges exhaust gas from the treatment tank to the atmosphere;
The exhaust passage from the processing tank is provided in an exhaust passage communicating with the exhaust part, and the dust contained in the exhaust from the processing tank is dropped by an impactor that moves in a closed space due to the exhaust flow from the processing tank, and the A waste treatment device comprising: a blocking part that blocks the passage of dust. The waste treatment according to claim 1, wherein the blocking part covers an exhaust port provided on the upper side of the processing tank, causes dust contained in the exhaust to fall, and returns it to the processing tank from the exhaust port. Device. The waste treatment apparatus according to claim 1, wherein the blocking section includes a filter that filters the dust. The blocking section is characterized in that the collision body is accommodated in a bag-shaped filter cloth that filters the dust, and allows exhaust gas from the processing tank to pass from an inner surface to an outer surface of the bag-shaped filter cloth. The waste treatment apparatus according to claim 1. The waste treatment apparatus according to claim 1, wherein the collision body has a spherical shape. The waste treatment apparatus according to claim 1, wherein the collision body has a gap space. a treatment tank that decomposes waste with microorganisms or reduces its volume by drying;
an exhaust section that discharges exhaust gas from the treatment tank to the atmosphere;
A filtration filter is provided in an exhaust passage through which exhaust air from the processing tank communicates with the exhaust part, and allows the exhaust air from the processing tank to pass from an inner surface to an outer surface, thereby preventing the passage of dust contained in the exhaust gas from the processing tank. a blocking portion having a vertically downward facing inner surface that prevents the dust from passing through the filter ;
The blocking part is configured such that a bag-shaped filter cloth serving as the filtration filter is placed over an exhaust port provided on the upper side of the processing tank, and allows dust contained in the exhaust to fall and return to the processing tank from the exhaust port. Characteristic waste treatment equipment.

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