JP3463473B2 - Garbage processing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal device, and more particularly to a bio-based garbage disposal device that decomposes garbage by microorganisms.

[0002]

2. Description of the Related Art Conventionally, a bio-based food waste treating apparatus for decomposing food waste by microorganisms has been known. In this bio-based food waste treatment device, food waste is processed in a processing chamber having a treatment material containing microorganisms that decomposes food waste inside, and at this time, the air for the microorganisms to breathe and survive. And air for removing the water contained in the garbage are required, and an intake path for taking in the outside air into the processing chamber, and an exhaust path for discharging the air in the processing chamber to the outside. In addition to the above, a ventilation fan for ventilating air is provided in the processing chamber, and by operating the ventilation fan, outside air can be ventilated by ventilating outside air into the processing chamber.

Further, in the bio-type food waste treatment device, nitrogen compounds such as ammonia and amines such as trimethylamine, methyl sulfide, and
It emits various odorous gases such as sulfur compounds such as methyl mercaptan and methyl disulfide, aldehydes, alcohols such as methanol and ethanol, and these gases are sources of odors such as irritating odor and rotten odor. Therefore, since the air containing the odorous gas as described above is discharged from the processing chamber through the exhaust path, a deodorizing device is provided in the exhaust path to purify the air to be discharged to the outside of the bad odor. Prevents leakage.

Here, in the above deodorizing device, the deodorizing performance usually gradually decreases with the lapse of time and eventually reaches the end of its life. In this case, maintenance such as replacement with a new product is required. Maintenance of this deodorizing device is
It is desirable that this is done before the end of life and troubles such as leakage of foul odors occur, however, in a bio-based garbage treatment device, a certain amount of odorous gas is not always generated, and its type Since there are various types, it is difficult to estimate the life of the deodorizing device based on the usage time, and the actual condition is that the deodorizing device is maintained after a trouble occurs.

[0005]

By the way, water, carbon dioxide, and ammonia are usually always generated in the process of decomposing raw garbage by microorganisms, and ammonia in this is a source of the above-mentioned malodor. It is one of odorous gases and is always present in a large amount compared with other malodorous components. Then, the present inventors have made the present invention as a result of studying a method of knowing the life of the deodorizing device in advance by paying attention to this point.

[0006] That is, the present invention provides an apparatus for treating food waste which is capable of knowing in advance the life of the deodorizing apparatus using ammonia as an index.

[0007]

In order to solve the above problems, an apparatus for treating food waste according to a first aspect of the present invention comprises a processing chamber for decomposing food waste with microorganisms, and an intake path for taking in outside air into the processing chamber. Raw garbage provided with an exhaust path for exhausting air in the processing chamber to the outside, a ventilation fan for aerating air in the processing chamber, and a purification zone provided in the exhaust path for purifying malodorous components in the air In the processing apparatus, a detection unit for detecting ammonia is provided at a position on the leeward side of the purification zone in the exhaust path.

In this garbage processing apparatus, among the malodorous components contained in the air discharged from the exhaust passage, ammonia, which is always present in a large amount as its constituent component, is detected by the detection unit provided in the leeward position of the purification zone. By detecting, the life of the deodorizing device provided in the purification zone can be known in advance. That is, when the deodorizing device provided in the purification zone deteriorates and approaches the end of its service life, the purification performance of the malodorous component deteriorates and the malodorous component leaks.In this case, the most malodorous component is contained. Any ammonia present will leak out first. Therefore, the life of the deodorizing device can be known in advance by detecting the ammonia that has leaked out as an index indicating the deterioration of the deodorizing device by the detection unit.

According to a second aspect of the present invention, there is provided the garbage treatment device according to the first aspect, wherein the purification zone is
First equipped with an ammonia purification device for treating ammonia
And a second purification zone provided with a non-ammonia gas purification device for treating non-ammonia gas, and the arrangement of the first purification zone in the exhaust passage is more than that of the second purification zone. Is also on the windward side.

Here, the above ammonia purifying device is a deodorizing device for purifying mainly ammonia among the malodorous components, and may have a function of purifying malodorous components other than ammonia. The non-ammonia gas purifying device is a deodorizing device that purifies all malodorous components and has a function of purifying non-ammonium gas that is a malodorous component other than ammonia, but also purifies ammonia. It may have a function.

In this garbage disposal, the ammonia is first removed by the ammonia purifier in the first purification zone, and then the non-ammonia gas is removed by the non-ammonia gas purifier in the second purification zone. Deodorization efficiency is improved. In other words, although ammonia is present in large amounts as a malodorous component, the threshold value (the value that indicates the limit gas concentration at which the difference from odorless air is indistinguishable) is relatively large. On the other hand, non-ammonia gas is a small amount as a malodorous component, but since it contains a component with a very small threshold value such as a sulfur compound, it is removed to a considerably small concentration for deodorization. There is a need. Therefore, by removing ammonia that is present in a large amount and having a relatively large threshold value first, and then removing a small amount of non-ammonia gas having a small threshold value later, the life of the deodorizing device is extended as a whole and deodorizing efficiency is improved. To do. In this case, the life of the ammonia purifying device can be regarded as the life of the entire deodorizing device.

According to a third aspect of the present invention, there is provided an apparatus for treating garbage according to the first or second aspect, wherein the detecting section is composed of an ammonia coloring material that causes a color reaction with ammonia. It is characterized in that ammonia can be detected by the color of the coloring material.

In this garbage processing device, the life of the deodorizing device can be known by confirming the color of the ammonia coloring material. In this case, the confirmation of the coloration of the ammonia coloration material may be performed visually or with a measuring device or the like.

According to a fourth aspect of the present invention, in the garbage treatment device according to the third aspect, the detection section is provided with a spectrophotometer for detecting the color of the ammonia coloring material, and the spectrophotometer is equipped with a spectrophotometer. The feature is that ammonia can be automatically detected by changing the wavelength.

In this food waste treatment apparatus, ammonia can be automatically detected by a spectrophotometer, which is convenient.

According to a fifth aspect of the present invention, there is provided the garbage treatment device according to the fourth aspect, further comprising alarm means for issuing an alarm in response to a wavelength change of the spectrophotometer. Is.

In this garbage processing device, the life of the deodorizing device can be known by the alarm of the alarm means, which is convenient.

According to a sixth aspect of the present invention, there is provided the garbage treatment device according to any one of the first to fifth aspects, wherein the exhaust path is divided into two parts and is joined again. Of the first flow path and the second flow path are provided in parallel, and the first flow path and the second flow path are each provided with a purification zone, and the first flow path and the second flow path are branched. A switching valve is provided in the section so that the air in the processing chamber discharged from the exhaust path selectively flows to either one of the first flow path and the second flow path. Is.

In this garbage processing apparatus, the purification zone provided in one of the first flow path and the second flow path is used as a spare according to the detection of ammonia by the detection section. By performing the switching operation of the flow path with the switching valve for use, the deodorizing device that has reached the end of its life can be maintained without stopping the operation of the garbage processing device, and continuous use becomes possible.

According to a seventh aspect of the present invention, in the garbage treatment device according to the sixth aspect, the switching valve switches the flow passages in response to the detection of ammonia in the detection section. It is characterized by that.

In this garbage disposal, the switching valve can be automatically switched, which is convenient.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION The garbage processing device according to the embodiments of the present invention will be described below.

FIGS. 1 to 4 are schematic views showing the outline of the garbage processing apparatuses according to the first to fourth embodiments of the present invention.

As shown in the figure, the garbage processing apparatus according to the embodiment of the present invention includes a processing chamber 1 for decomposing garbage by microorganisms, and an intake path 2 for taking in outside air into the processing chamber 1.
And an exhaust path 3 for discharging the air in the processing chamber 1 to the outside,
A garbage disposal device comprising: a ventilation fan (4) for ventilating air into the processing chamber (1); and a purification zone (5) provided in an exhaust passage (3) for purifying a malodorous component in the air, which is a purification zone in the exhaust passage (3). A detection unit 6 for detecting ammonia is provided at a position further downwind than the detection unit 5.

The garbage processing apparatus according to the first embodiment will be described with reference to FIG. In the first embodiment, the processing material 1a is stored in the bottom of the internal space of the processing chamber 1 and the stirrer 1b is provided, and the raw dust introduced into the processing chamber 1 and the processing material 1a are mixed by stirring. You can do it. A microorganism that decomposes raw garbage propagates in the treated material 1a, and this microorganism proliferates using the raw garbage as a nutrient source to decompose the raw garbage. In the processing chamber 1, decomposition of raw garbage by microorganisms in the processing material 1a mainly produces water, carbon dioxide, and ammonia, and other amines such as trimethylamine, sulfur compounds such as methyl sulfide, methyl mercaptan, and methyl disulfide. , Various kinds of gases such as aldehydes, alcohols such as methanol, ethanol, etc. are generated, and these gases are sources of bad odors such as irritating odor and rotten odor. In addition, in the processing chamber 1, outside air is required for the respiration of microorganisms in the processing material 1a, and on the other hand, the mixture of the processing material 1a and the garbage is generated by the water originally contained in the garbage or the water generated by the decomposition of the garbage. Since it is moist, air is required to remove this moisture and dry it.

In the first embodiment, the intake passage 2 is provided in the processing chamber 1.
Is provided on the upper side surface of the processing chamber 1, the exhaust path 3 is provided at a position facing the intake path 2 on the upper side surface of the processing chamber 1, and the ventilation fan 4 serving as a blast power source is provided on the exhaust side end portion of the exhaust path 3. There is. A purification zone 5 is provided in the middle of the exhaust passage 3, and a detection unit 6 for detecting ammonia is provided between the purification zone 5 and the ventilation fan 4 in the exhaust passage 3.

The purification zone 5 is provided with a deodorizing catalyst portion 11 and a heating device 12 as a deodorizing device. Heating device 12
Is adjacently provided on the windward side of the deodorizing catalyst unit 11. In this purification zone 5, the heating device 12 heats the exhaust air to a high temperature, and by bringing this into contact with the deodorizing catalyst unit 11, the malodorous components contained in the exhaust air are oxidatively deodorized. Examples of the deodorizing catalyst used in the deodorizing catalyst unit 11 include those in which a transition metal or a metal oxide having an oxidizing property is carried on a carrier. Examples of the carrier include alumina, titania, silica-alumina, silica, zeolite and the like. Platinum is most suitable as the above transition metal, but
It is also possible to use gold, silver, palladium, ruthenium, rhodium or the like. As the metal oxide, for example,
Examples thereof include nickel oxide, manganese oxide, cobalt oxide, iron oxide and the like. The above deodorizing catalyst does not have a deodorizing effect at room temperature, but exhibits a good deodorizing effect when heated to, for example, 200 to 300 ° C. by the heating device 52.

The detecting section 6 is made of an ammonia coloring material that reacts with ammonia in a coloring reaction. Examples of this ammonia coloring material include, for example, a material obtained by adhering sulphate-acidic thymol blue to a carrier, etc., which usually exhibits a blue color, and undergoes a color reaction with ammonia to give a pink or red color. To do.

In the first embodiment, when the ventilation fan 4 is operated, the outside air is taken into the processing chamber 1 from the intake passage 2, and at the same time, the same amount of air is taken from the inside of the processing chamber 1 through the exhaust passage 3 into the purification zone. After the malodorous component was purified in 5,
It is discharged to the outside. At this time, when the deodorizing catalyst portion 11 provided in the purification zone 5 is operating normally, no change is seen in the detecting portion 6, but the deodorizing performance of the deodorizing catalyst portion 11 is lowered and ammonia leaks out. When this comes in, this ammonia colors the ammonia coloring material that constitutes the detection unit 6, and ammonia is detected, and the deodorization catalyst unit 11 can recognize the life by the color change of the detection unit 6 at this time. . Therefore, maintenance of the deodorizing device can be performed before trouble such as leakage of a bad smell occurs.

Next, the garbage disposal according to the second embodiment will be described with reference to FIG. As shown in the figure, in the garbage processing device according to the second embodiment, the intake passage 2 has the processing chamber 1
Is provided on the upper side surface of the processing chamber 1, the exhaust path 3 is provided at a position facing the intake path 2 on the upper side surface of the processing chamber 1, and the ventilation fan 4 serving as a blast power source is provided on the exhaust side end portion of the exhaust path 3. In addition, a purification zone 5 is provided in the middle of the exhaust passage 3, and a detection unit 6 that detects ammonia is provided between the purification zone 5 and the ventilation fan 4 in the exhaust passage 3. Further, in the second embodiment, the purification zone 5 includes a first purification zone 7 provided with an ammonia purification device for treating ammonia and arranged on the windward side, and a non-ammonia gas purification device for treating non-ammonia gas. And a second purification zone 8 arranged on the side.

The first purification zone 7 is composed of a water storage tank 13 that stores water or aqueous solution for ammonia absorption as an ammonia purification device. The exhaust path 3 is this first
It is divided into a first half part 3a and a second half part 3b with the purification zone 7 as a boundary, and the leeward end of the first half part 3a of the exhaust path 3 is in the water tank 13.
Introduced into water or aqueous solution at the inner bottom, same as the latter half
The windward end of 3b communicates with the upper part of the water tank 13. The air discharged from the first half 3a of the exhaust path 3 is stored in the water tank.
After being bubbled into water or an aqueous solution inside 13, it enters the first half 3a of the exhaust path 3, at which time
Ammonia contained in the air is dissolved and absorbed by water or an aqueous solution in the water storage tank 13 to be removed. Here, of the malodorous components, water-soluble components can be removed at the same time. Further, the aqueous solution stored in the water storage tank 13 may be one in which an additive or the like that becomes acidic is dissolved in order to improve the absorption efficiency of ammonia.

The second purification zone 8 is provided with a deodorizing catalyst portion 11 and a heating device 12 as a non-ammonia gas purification device. The heating device 12 is adjacent to the deodorizing catalyst portion 11 on the windward side, and the same device as that used in the first embodiment can be used. In the second purification zone 8, a small amount of ammonia, which is not removed in the first purification zone 7 and remains, is removed together with the non-ammonia gas.

In the second embodiment, when the ventilation fan 4 is operated, the outside air is taken into the processing chamber 1 from the intake passage 2 and, at the same time, the same amount of air is discharged from the inside of the processing chamber 1 to the exhaust passage 3. To be done. In the air discharged to the exhaust path 3, first, ammonia contained in a large amount as a malodorous component is first removed in the first purification zone 7, and then the remaining non-ammonia gas is removed in the second purification zone 8. Will be removed
Deodorization efficiency is improved. That is, in this case, since it is not necessary to process a large amount of ammonia in the deodorization catalyst section 11 in the second purification zone 8, the load on ammonia processing is small and the life is extended and non-ammonia gas can be efficiently removed. . Therefore, the life of the deodorizing device as a whole is extended and the deodorizing efficiency is improved. Then, the ammonia purification performance of the first purification zone 7 is lowered and a large amount of ammonia is generated in the second purification zone 8
Since the leakage of ammonia is likely to occur, the life of the ammonia purification device in the first purification zone 7 can be regarded as the life of the entire deodorizing device. In this case, ammonia leakage is detected. Since it is detected by the unit 6, the life of the deodorizing device can be known, and the deodorizing device can be maintained before trouble such as leakage of a bad smell occurs. In this case, the maintenance of the ammonia purification device in the first purification zone 7 can be easily performed by replacing the water or the aqueous solution in the water storage tank 13.

Next, a garbage disposal according to the third embodiment will be described with reference to FIG. As shown in the figure, in the garbage processing device according to the third embodiment, the intake path 2 has the processing chamber 1
Is provided in the upper part of the side surface of the processing chamber 1, the exhaust path 3 is provided at a position facing the intake path 2 in the upper part of the side surface of the processing chamber 1, and the purification zone 5 is provided in the middle part of the exhaust path 3.
A detection unit 6 that detects ammonia is provided on the leeward side of the purification zone 5 and the ventilation fan 4 that is a blast power source is provided near the opening of the exhaust path 3 to the processing chamber 1. Further, in the third embodiment, the purification zone 5 is provided with an ammonia purification device for treating ammonia in the exhaust path 3 and is disposed on the windward side, and a non-ammonia gas for treating non-ammonia gas. A second purification zone 8 provided with a purification device and arranged on the leeward side, and a first purification zone 7 in the exhaust path 3.
A branch duct 20 is branched between the second purification zone 8 and the second purification zone 8.

In the first purification zone 7, a silica gel filling section 14 and this silica gel filling section are provided as an ammonia purifying device.
A heating device 12 adjacent to the windward side of 14 is provided. The heating device 12 is provided to regenerate the silica gel filling portion 14 that has become saturated with adsorption. The second purification zone 8 is provided with activated carbon 15 as a non-ammonia gas purification device.

The detector 6 is composed of an ammonia coloring material that reacts with ammonia in a color. In addition, the detection unit 6
A spectrophotometer 9 for catching the color of the ammonia coloring material is provided on the side of, and the spectrophotometer 9 is electrically connected to an alarm means 10 provided separately, and the alarm means is provided.
An alarm 10 is issued in response to a change in the measurement wavelength of the spectrophotometer 9.

The branch duct 20 is provided with a deodorizing catalyst section 11 and a heating device 12 adjacent to the deodorizing catalyst section 11 on the windward side. Further, a switching valve 41 capable of switching the air flow path to either the exhaust path 3 or the branch duct 20 is provided at the branch portion 30 of the exhaust path 3 and the branch duct 20.

In the third embodiment, when the ventilation fan 4 is operated, the outside air is taken into the processing chamber 1 from the intake passage 2 and, at the same time, the same amount of air is discharged from the inside of the processing chamber 1 to the exhaust passage 3. To be done. The air discharged to the exhaust path 3 is first adsorbed in the first purification zone 7 with a large amount of ammonia as a malodorous component in the silica gel filling section 14 and removed first, and then in the second purification zone 8 Since the remaining non-ammonia gas is removed by the activated carbon 15, the deodorization efficiency is high as in the second embodiment. Then, when the silica gel filling portion 14 of the first purification zone 7 reaches the adsorption saturation, the ammonia purification performance deteriorates and a large amount of ammonia reaches the second purification zone 8 and deteriorates the activated carbon 15 as well, so that ammonia leaks out. It will happen, but in this case,
Since the detector 6 detects the leakage of ammonia, the life of the deodorizing device can be known, and the deodorizing device can be maintained before trouble such as leakage of a bad smell occurs.

In this case, when performing maintenance of the deodorizing device, the regeneration of the silica gel filling section 14 of the first purification zone 7 is heated by the switching valve 41 so that the air passage after the branch section 30 is set to the branch duct 20 side. This can be done by flowing air at a high temperature in the device 12, at which time the malodorous components adsorbed in the silica gel filling section 14 are desorbed and flow to the branch duct 20 and purified by the deodorizing catalyst section 11 provided in the branch duct 20. It is what is done. At this time, the activated carbon 15 should be replaced with a new one at the same time.

Next, a garbage disposal according to the fourth embodiment will be described with reference to FIG. The garbage processing device according to the fourth embodiment is the same as the garbage disposal device according to the third embodiment.
In the middle, a first flow path 31 and a second flow path 32 that branch into two and join again are provided in parallel, and the first flow path 31 and the second flow path 31
Each of the flow passages 32 is provided with the first purification zone 7,
An electromagnetic switching valve 42 is provided at the branch portion 33 of the first flow path 31 and the second flow path 32 so that the air in the processing chamber 1 exhausted from the exhaust path 3 has the first flow path 31 and the second flow path 32. This is a mode in which it selectively flows to either one of the two flow paths 32.

The outside air intake passage 21 that further opens to the outside branches into the branch portion 33. The switching valve 42 provided in the branch portion 33 has a first flow path in which the air sent from the processing chamber 1 to the exhaust path 3 by the ventilation fan 4 flows.
At the same time as switching to either 31 or the second flow path 32, the direction in which the outside air taken in from the outside air intake path 21 flows is changed to either the first flow path 31 or the second flow path 32. The role of switching to.

In addition, the first flow path 31 and the second flow path 32 are respectively filled with the silica gel filling section 14 as an ammonia purifying device.
And a heating device adjacent to the windward side of this silica gel filling section 14.
Twelve are provided. In the exhaust path 3, the first flow path
The second purification zone 8 is provided on the leeward side of the merging portion where the 31 and the second flow passage 32 merge again. In the second purification zone 8, activated carbon 15 is provided as a non-ammonia gas purification device. Further, on the leeward side of the activated carbon 15, there is provided a detection unit 9 composed of an ammonia coloring material, and on the side of the detection unit 6, there is provided a spectrophotometer 9 for catching the coloration of the ammonia coloring material. There is.

A branch duct that branches from the exhaust path 3
20 is provided such that its leeward side is branched and communicated with both the leeward side of each first purification zone 7 in the first flow passage 31 and the second flow passage 32. This branch duct 20 and the first
Electromagnetic switching valves 43, 44 capable of switching the air flow path to either the exhaust path 3 or the branch duct 20 are provided at the respective branch portions of the flow path 31 and the second flow path 32. ing. The switching valves 43 and 44 are both branch ducts 20.
Operates so as to communicate with the outside air intake passage 21, and the switching valves 43 and 44 do not select the air passage in the same direction. Further, the branch duct 20 is provided with a deodorizing catalyst portion 11 and a heating device 12 adjacent to the leeward side of the deodorizing catalyst portion 11, and an exhaust fan 23 for forced exhaust is further provided at an end portion on the leeward side. It is provided.

The garbage disposal according to the fourth embodiment is capable of purifying exhaust air and knowing the life of the deodorizing device in the same manner as in the third embodiment.
The purification zone provided in one of the first flow path 31 and the second flow path 32 can be used as a spare.

In the garbage disposal according to the fourth embodiment,
With the control system as shown in FIG. 5, the first flow path 31 and the second flow path 32 can be automatically used separately.

Explaining this control system, for example, consider a case where the first flow path 31 is used as the flow path of the air in the exhaust path 3 and the second flow path 32 is set as a spare. In this case, if the silica gel filling section 14 provided in the first flow path 31 is saturated and the ammonia purification performance is deteriorated, and the ammonia coloring material of the detection section 9 is colored with leakage of ammonia, The change in color is detected by the spectrophotometer 10 as a change in the measurement wavelength, and the spectrophotometer 10 sends a detection signal to the control unit. In response to this, the control section causes the switching valves 42, 43, 44 to switch the flow paths and, at the same time, the heating device 12 for the first flow path 31.
Then, the heating device 12 of the branch duct 20 and the exhaust fan 23 are turned on. As a result, in the first flow path 31, the switching valve 42
The flow path on the windward side is switched to the outside air intake path 21 by the switch, and the flow path on the leeward side is switched from the exhaust path 3 to the branch duct 20 by the switching valve 43, and the exhaust fan 23 causes the outside air to flow and become saturated with silica gel. The filling section 14 is heated and regenerated by the heating device 12, and the malodorous components such as ammonia desorbed from the silica gel filling section 14 at this time flow to the branch duct 20 together with the outside air, and after being purified by the deodorization catalyst section 11, , Discharged to the outside. At the same time, in the second flow path 32, the switching valves 42 and 44 switch the windward and leeward flow paths to the exhaust path 3, respectively.
Ammonia is adsorbed and removed by the silica gel filling section 14 provided in the channel 32. The first flow path
The heating / regeneration of the silica gel-filled portion 14 at 31 is stopped after a fixed time period sufficient for the heating / regeneration, and the first flow path 31 stands by as a spare flow path. On the contrary, when the silica gel filling portion 14 becomes saturated in the second flow channel 32, it is switched to the flow channel of the first flow channel 31 by the same process as above.

[0047]

As described above, according to the apparatus for treating garbage according to the first aspect of the present invention, by detecting the ammonia that has leaked out as an index indicating the deterioration of the deodorizing device by the detecting portion, the life of the deodorizing device is reduced. You can know in advance.

According to the garbage disposal according to claim 2,
In addition to the effects of the garbage treatment device according to claim 1, in the first purification zone, a large amount of ammonia which is present in the ammonia purification device and has a relatively large threshold value is first removed, and then the second purification zone. Since the non-ammonia gas purifying device, which has a small amount but a small threshold value, removes the non-ammonia gas, the life of the deodorizing device is extended and the deodorizing efficiency is improved as a whole.

According to the garbage disposal of claim 3,
In addition to the above effects of the garbage treatment device according to the first or second aspect, the life of the deodorizing device can be known by checking the color of the ammonia coloring material.

According to the garbage disposal of claim 4,
In addition to the above effects of the garbage disposal according to the third aspect, ammonia can be automatically detected by a spectrophotometer, which is convenient.

According to the garbage disposal of claim 5,
In addition to the above effects of the garbage disposal according to the fourth aspect, the life of the deodorizing device can be known by the alarm of the alarm means, which is convenient.

According to the garbage disposal of claim 6,
In addition to the above effects in the garbage disposal according to any one of claims 1 to 5, a purification zone provided in one of the first flow passage and the second flow passage is used as a spare. By performing the switching operation of the flow path by the switching valve according to the detection of ammonia in the detection unit and using it, maintenance of the deodorizing device that has reached the end of life can be performed without stopping the operation of the garbage processing device. , Continuous use becomes possible.

According to the garbage disposal of claim 7,
In addition to the effect of the garbage disposal according to the sixth aspect, the switching valve can be automatically switched, which is convenient.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an outline of a garbage processing device according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing an outline of a garbage processing device according to a second embodiment of the present invention.

FIG. 3 is a schematic diagram showing an outline of a garbage processing device according to a third embodiment of the present invention.

FIG. 4 is a schematic diagram showing an outline of a garbage processing device according to a fourth embodiment of the present invention.

FIG. 5 is a block diagram showing a control system in a fourth embodiment.

[Explanation of symbols]

1 processing room 2 Intake path 3 exhaust route 4 ventilation fan 5 Purification zone 6 detector

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-5-221767 (JP, A) JP-A-62-149322 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B09B 3/00 B01D 53/34 116

Claims (7)

(57) [Claims] 1. A processing chamber for decomposing food waste by microorganisms, an intake path for taking in outside air into the processing chamber, an exhaust path for discharging air in the processing chamber to the outside, and air for aeration in the processing chamber. In a garbage disposal provided with a ventilation fan and a purification zone provided in the exhaust path for purifying a malodorous component in the air, a detection unit for detecting ammonia at a leeward position of the purification zone in the exhaust path. A garbage disposal device characterized by being provided. 2. The purification zone is composed of a first purification zone equipped with an ammonia purification device for treating ammonia and a second purification zone equipped with a non-ammonia gas purification device for treating non-ammonia gas, Moreover, the arrangement of the first purification zone in the exhaust path is on the windward side of the arrangement of the second purification zone.
The described garbage treatment device. 3. The method according to claim 1, wherein the detection section is composed of an ammonia coloring material that causes a color reaction with ammonia, and ammonia can be detected by the coloring of the ammonia coloring material. The garbage processing device according to claim 2. 4. A spectrophotometer for detecting the coloration of an ammonia coloring material is provided in the detection section, and ammonia can be automatically detected by a wavelength change of the spectrophotometer. The described garbage treatment device. 5. The garbage disposal according to claim 4, further comprising an alarm means for issuing an alarm in response to a change in wavelength of the spectrophotometer. 6. The exhaust passage is provided in parallel with a first flow path and a second flow path that branch into two parts and join again, and the first flow path and the second flow path. Each of the passages is provided with a purification zone, and a switching valve is provided at a branch portion of the first flow passage and the second flow passage, and the air in the processing chamber discharged from the exhaust passage is supplied to the first flow passage. The garbage disposal according to any one of claims 1 to 5, characterized in that it selectively flows into either of the first and second flow paths. 7. The garbage treatment device according to claim 6, wherein the switching valve performs a flow path switching operation in response to the detection of ammonia in the detection unit.