JPH0942642A - Disposal equipment and use thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a treatment to reduce the weight of garbage or like stinking and remove the odor thereof free from any environmental problem and with simple equipment by providing a combustion furnace below a deodorizing furnace and the deodorizing furnace below a fermentation drying tank. SOLUTION: A fermentation drying tank 2 is provided to ferment and dry a matter containing moisture treatable by fermentation, for example, garbage under heating conditions and a combustion furnace 3 to incinerate the matter to be treated by the fermentation drying tank 2. A deodorizing furnace 4 is provided to deodorize bad-smelling exhaust gas as generated from the combustion furnace 3 by combustion. A heat recovery circuit 5 is provided to introduce the exhaust gas deodorized as generated from the deodorizing furnace 4 into the fermentation drying tank 2 as heat source for heating and a generated gas guiding path 6 is provided to guide an odor gas steam generated in the fermentation drying take 2 to a deodorizing path 4 or the combustion furnace 3. With such an arrangement, the generation of offensive odor can be prevented with a relatively compact designing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facility for treating an object to be fermented which contains water, which is representative of garbage, and a method of using such a facility.

[0002]

2. Description of the Related Art This kind of garbage is used in fish markets, vegetable markets,
It is generated from fruit and vegetable markets, agricultural cooperatives, poultry farms, pig farms, ham factories, canning factories, supermarkets, etc. Heretofore, such substances to be treated that can be decomposed by the progress of fermentation have been accumulated at the place where they are generated, transported to, for example, a farm and used as compost.

[0003]

However, in a business establishment where a relatively large amount of raw materials such as food wastes and the like that cause fermentation are generated, the regular processing place (eg, farm).
Is relatively difficult to secure, and even in the case of temporarily accumulating the generated substances in the business site, it is difficult to secure the accumulation place, and the problem of odor generated due to the accumulation is large. However, there is a problem that a poultry farm and a pig farm can be opened only in a mountain with a small population. Therefore, an object of the present invention is to obtain a treatment facility that can reduce the amount of raw garbage that is likely to be accompanied by an odor and deodorize it with relatively simple facilities without causing environmental problems.

[0004]

In order to achieve this object, the characteristic constitution of the treatment equipment according to claim 1 according to the present invention is as follows. Fermentation drying tank for fermenting and drying the object to be treated under conditions, and an incinerator for incinerating the object to be treated that has undergone fermentation and drying treatment in the fermentation drying tank, and exhaust gas with odor generated from the incinerator Equipped with a deodorizing furnace that deodorizes by combustion, a heat recovery path that guides the deodorized exhaust gas generated from the deodorizing furnace to the fermentation drying tank as a heat source for heating, and a deodorizing furnace that removes odorous gas and steam generated in the fermentation drying tank. Alternatively, it is provided with a generated gas introduction path leading to the incinerator, the incinerator is provided below the deodorizing furnace, and the deodorizing furnace is provided below the fermentation drying tank. In the treatment facility according to claim 1, it is preferable that the incinerator is a rotary kiln incinerator. This is a characteristic configuration of the processing equipment according to claim 2. The processing facility according to claim 1 or 2, wherein a processed material inlet of the fermentation drying tank into which the processed material is charged is configured to be open / closed in an airtight manner, and the fermentation drying tank, the incinerator, and It is preferable that a decompression maintaining mechanism that maintains a pressure lower than the atmospheric pressure in the moving path of the object to be treated or the exhaust gas passing through the deodorizing furnace is provided.
This is a characteristic configuration of the processing equipment according to claim 3. In the processing equipment according to any one of claims 1 to 3,
Between the fermentation treatment tank and the incinerator, a storage tank for temporarily storing the fermented and dried processed material obtained in the fermented treatment tank, and the fermented and dried processed material from the storage tank. It is preferable to provide a fixed amount supply device for charging a predetermined amount into the incinerator. This is a characteristic configuration of the processing equipment according to claim 4. The treatment facility according to claim 4, further comprising a treated substance status detecting means for detecting a fermentation dried state of the treated object in the fermentation drying tank, and the incineration based on a detection result by the treated substance status detecting means. It is preferable to provide a throughput adjusting means for controlling the incineration throughput in the furnace. This is the characteristic configuration of the processing equipment according to claim 5. In the treatment facility according to any one of claims 1 to 5, it is preferable that the treatment facility is provided with a treated substance charging unit capable of directly charging a treated substance capable of being incinerated into the incinerator.
This is the characteristic configuration of the processing equipment according to claim 6.
When using the treatment facility according to any one of claims 1 to 6, a fermentation-treatable substance containing the water is added,
It is preferable to store the product in a biodegradable plastic bag containing starch as a main component and put it in the fermentation drying tank. This is a feature of the method of using the processing equipment according to claim 7.

[Operation] The processing equipment according to claim 1 includes:
Fermentation drying tank, incinerator, deodorizing furnace is provided, fermentation drying of the processed material in the fermentation drying tank, incineration of the fermented and dried processed material in the incinerator, further in the deodorizing furnace, from the incinerator The odorous exhaust gas that is generated is deodorized. The deodorized exhaust gas is used as a heat source for fermentation drying in the fermentation drying tank via the heat recovery passage. In the fermentation drying tank, the odorous gas and water vapor generated by the treatment are sent to a deodorizing furnace or an incinerator through a generated gas introduction passage to be deodorized. Therefore, in the treatment facility of the present application, it is possible to perform even the incineration treatment of the object to be treated and achieve sufficient reduction. Further, since the fermentation drying tank using the heat generated by the device as a heat source is provided, effective use of heat in the facility is measured, and the device is an energy saving type device. Since the odorous gas generated from each device (fermentation drying tank and incinerator) can be reliably treated in the deodorizing furnace, the problem of odor generation can be solved. By the way, in the present application, the fermentation drying tank, the deodorizing furnace, and the incinerator are arranged and arranged so as to come to the high position (the one described above is a position above the one described later) in the order of description.
Here, the moving direction of the solid matter is from the fermentation drying tank to the incinerator and is discharged from the furnace outlet. Therefore, the moving direction of the solid matter is from top to bottom, and for example, there is no need for extra energy such as lifting up after loading a heavy solid matter in the apparatus. On the other hand, the moving path of the exhaust gas generated from the incinerator moves to the incinerator, the deodorizing furnace, and the fermentation drying tank, and moves from the bottom to the top. Therefore, also in this respect, the capacity of the blower mechanism or the like for inducing gas movement can be reduced, and in this respect as well, preferable equipment can be provided. In the treatment facility according to claim 2, a rotary kiln type incinerator is used as the incinerator. Since this incinerator has a form in which the object to be treated is processed in the kiln having the laterally inclined arrangement, the equipment can be configured compactly without increasing the height of the entire equipment. Further, as shown in FIG. 2, if a deodorizing furnace is provided at the upper position of this kiln, and a cylindrical fermentation drying tank is also provided above the kiln, while maintaining a considerable processing capacity, the entire It is possible to obtain a processing facility with a small occupied volume. In the treatment facility according to claim 3, the treated product inlet of the fermentation drying tank is configured to be airtightly operable, and the internal pressure of the fermentation drying tank, the incinerator, and the deodorizing furnace is reduced by the reduced pressure maintaining mechanism. To be kept. The inside of these devices is a part where odorous gas is generated, and by keeping the depressurized state, it is possible to prevent the odorous gas from leaking to the outside. Furthermore, with this configuration, a structure that guides the gas in the fermentation drying tank and the incinerator to the deodorizing furnace by the depressurization maintaining mechanism (the following embodiment has this structure) is adopted. Reliable treatment of odorous gas. In the treatment facility according to the fourth aspect, the fermented and dried substance to be treated, which has been reduced to some extent, is temporarily stored in a storage tank and then supplied to an incinerator by a fixed amount supply device. Therefore, it becomes possible to reliably control the amount of incineration in the incinerator, and at the same time, while performing the treatment in the fermentation drying tank, while ensuring a stable supply state of the incineration treated product, The processing in the furnace can proceed stably. In the processing equipment according to the fifth aspect, the equipment is provided with a processed material status detecting means and a processing amount adjusting means. Here, the former provides a criterion for determining the throughput in the throughput adjusting means by detecting the condition of the object to be treated in the fermentation drying tank. In the processing equipment of the present application, basically, the processing in the fermentation drying tank is a processing that requires a relatively long time, and the processed material to be processed from this tank is regularly obtained in a predetermined amount. Only when the situation is realized will the operation and maintenance of the equipment proceed smoothly. Further, in this fermentation treatment tank, it is preferable that the heating temperature is always maintained at a certain temperature or higher at which the fermentation can proceed favorably. Therefore, this configuration can maintain a good operating condition. In the processing facility according to claim 6, the processing can be proceeded as follows. In general offices,
Some foods that can be fermented, such as raw garbage, and some materials that are unsuitable for fermentation, such as paper and plastic, are generated. And what is not suitable for such fermentation is thrown in from the processed material throwing part provided in the incinerator. In this way, it is possible to deal with all kinds of processed materials generated from business establishments. In the method of using the treatment facility according to claim 7, the material to be treated is put into the fermentation drying tank in a state where it is stored in a biodegradable plastic bag containing starch as a main component. Due to its composition, this bag is fermented, decomposed and dried in the fermentation drying tank. Therefore, it is possible to smoothly carry out the treatment without causing a problem in the equipment while being charged into the fermentation drying tank in a state in which the substance to be treated can be suitably transferred and conveyed without emitting a bad odor to the outside.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the treatment facility of the present application will be described below with reference to the drawings. 1 shows a system configuration of the processing equipment 1, FIG. 2 shows a schematic front view of the processing equipment 1, and FIG. 3 shows a schematic side view of the processing equipment 1. Further, FIG. 4 shows a plan view of the processing equipment 1. Since this processing equipment 1 has a structure that can be divided into two parts in the vertical direction,
In FIG. 4, the upper part of the equipment 200 having the fermentation drying tank 2 as the main equipment is shown on the upper side of the drawing, and the lower part of the equipment 300 having the deodorizing furnace 4 and the incinerator 3 as the main equipment is shown on the upper and lower sides of the drawing.
As shown in FIGS. 1 to 4, the treatment equipment 1 has, as its main equipment, a fermentation drying tank 2 for fermenting and drying a fermentable material to be treated containing water, such as garbage, under heating conditions.
It is provided with an incinerator 3 for incinerating an object to be processed that has been subjected to fermentation and drying treatment in this fermentation and drying tank 2, and a deodorizing furnace 4 for deodorizing exhaust gas with odor generated from the incinerator 3 by burning. Has been done. Then, the heat recovery path 5 that guides the deodorized exhaust gas generated from the deodorization furnace 4 to the fermentation drying tank 2 to serve as a heat source for heating, and the odorous gas and steam generated in the fermentation drying tank 2 to the deodorization furnace or incinerator. A generated gas introduction path 6 that leads to 3 is provided. Further, as shown in FIG. 2, an incinerator 3, a deodorizing furnace 4, and a fermentation drying tank 2 are provided on the upper side in the order of description (the latter is on the upper side).

Each device will be described in more detail below. The fermentation drying tank 2 is provided with a so-called cylindrical processing tank 7, and a cylindrical drum 8 for accommodating an object to be processed and the processing tank 7 is rotated in association with a stirring motor 9. A stirring mechanism 10 is provided. In this processing tank 7,
A processed material inlet 11 that can be opened / closed and sealed is provided, and a processed material outlet 12 is provided at a position higher than a lower position of the processing tank 7 by a predetermined amount, as shown in FIG. This processed material discharge port 12 is also configured to be openable and closable so that most of the processed material in the drum 8 (about 70%) is completely processed in the processing tank 7. The structure that can be discharged to the outside of the processing tank 7 is adopted. A lifter 13 is provided for the processed material inlet 11,
The lifter 13 allows the object to be processed to be loaded from the ground side while the loading port 11 is kept open. In the operation of loading the object to be treated, as will be described later, in a state where raw garbage or the like is stored in the biodegradable plastic bag 14 containing starch as a main component, the lifter 13 moves up to the loading port 11, It can be put into the fermentation drying tank 2. Further, as will be described later, a heating jacket 15 for circulating the exhaust gas deodorized by the deodorizing furnace 4 is provided on the outer peripheral portion of the cylindrical processing tank 7, and the processing tank 7 is heated by the heat of the exhaust gas. The structure that can accelerate the fermentation drying operation inside is adopted. Further, in such indirect heating with exhaust gas, in order to deal with a situation where sufficient processing cannot be performed, the deodorized exhaust gas can be directly introduced into the processing tank 7 and directly heated. . That is, as shown in FIG. 1, the heat recovery path 5 for guiding the exhaust gas from the deodorizing furnace 4 to the fermentation drying tank 2 is
Indirect heating path 5a connected to the heating jacket 15 described above.
And a direct heating path 5b for directly introducing the exhaust gas into the treatment tank 7.
It is comprised including. Regarding the exhaust gas flow path,
This will be described in more detail later.

The above is a description of the fermentation drying tank 2, and the flow of the fermented and dried processed material obtained by the processing in this tank 2 will be described. After such treatment, the volume of the object to be treated is reduced to about 30%, and the state is okara. At the outlet position of the treated product discharge port 12, a storage tank 16 for temporarily storing the fermented and dried processed product obtained in the fermented treatment tank 2, and a fermented and dried treatment from the storage tank 16 It is equipped with a constant amount supply device 17 for charging a predetermined amount of the object to be treated into the incinerator 3. The constant quantity supply device 17 is composed of two stages of screw conveyors 18, 19 including a cutting-side screw conveyor 18 and a charging-side screw conveyor 19. Then, the fixed amount supply device 17 is provided with a processing amount adjusting means 20 for controlling the amount of the object to be processed which is put into the incinerator 3. Then, a processed product status detection means 21 for detecting the fermented and dried state of the processed product in the fermentation and drying tank 2 is provided,
Based on the detection result by the treated material status detecting means 21 or the combustion status detecting means 210 in the incinerator 3, the incineration processing amount in the incinerator 3 is controlled by the supply amount control of the constant amount supply device 17 by the processing amount adjusting means 20. It can be controlled. Here, the processed material status detecting means 21 is a detector 22 for detecting the temperature and humidity in the drum, and the height of the processed material remaining in the drum, and the detection results of these detectors 22 in advance. It comprises a judgment means 23 for judging the processing status of the object to be processed by comparing it with the stored reference data, and the judgment result by this judgment means 23 is sent to the processing amount adjusting means 20 side. The configuration is adopted.

Next, the incinerator 3 will be described. The incinerator 3 is a so-called rotary kiln type incinerator.
The incinerator 3 includes a kiln 24 in which an object to be processed is burned,
Blower 25 for supplying combustion air into this kiln 24
And a burner 26 for ignition / preheating used at the start of incinerator operation, and the screw conveyor 1 on the loading side described above.
9 is provided. Further, apart from the incineration products that can be processed in the fermentation drying tank 2, the fermentation products such as paper and waste plastic that cannot be fermented and can be incinerated directly can be inserted into the kiln 24.
(See FIG. 1). On the lower side of the incinerator 3, an incineration-processed material recovery chamber 28 is provided, and the kiln 2
The incinerated ash 29 collected from No. 4 can be taken out of the facility.

An exhaust gas recovery duct 30 is connected to the upper part of the incineration product recovery chamber 28, and the exhaust gas generated from the incinerator 3 is connected via the exhaust gas recovery duct 30.
It is introduced into the deodorizing furnace 4. This deodorizing furnace 4 is provided with a deodorizing burner 31 and a deodorizing chamber 32 that is sufficient for complete deodorization by treating exhaust gas for 1 to 2 seconds or more in a high temperature environment of about 800 ° C. ing. In the example of this embodiment, a horizontally long rotary kiln type is adopted as the incinerator 3, and the deodorizing furnace 4 is provided at the back of the upper part (see FIG. 3).
By providing the deodorizing furnace 4 provided with, it is possible to reliably incinerate and deodorize with a compact configuration.

The heat recovery path 5 for guiding the exhaust gas from the deodorizing furnace 4 to the fermentation drying tank 2 includes an indirect heating path 5a connected to the heating jacket 15 and a direct heating path 5b for directly introducing the exhaust gas into the drum 8. I have it. At the base end sides of the indirect heating path 5a and the direct heating path 5b, a dilution air suction mechanism 33 (predetermined value) for adjusting the temperature of the exhaust gas flowing through the respective paths 5a and 5b and supplied to a predetermined part is provided. Pipe 33a, damper 3
3b and the suction port 33c). Here, the temperature of the gas flowing through the indirect heating path 5a is 30
The temperature of the gas flowing directly through the heating passage 5b is adjusted to about 150 ° C. Now, on the downstream side of the heating jacket 15 provided in the fermentation drying tank 2, the induction fan 3 is provided.
4 is provided, and the exhaust is discharged to the outside through the chimney 35. Here, since the gas flowing through this system has been deodorized by the deodorization furnace 4, it does not leak odor to the outside. Regarding the gas introduced into the drum 8 through the direct heating passage 5b, the gas is introduced into the kiln 2 of the incinerator 3 through the generated gas introduction passage 6 provided for the drum 8.
Guided within 4. The generated gas introduction path 6 is provided with a circulation fan 36 for ensuring the circulation of gas through the fermentation drying tank 2, the kiln 24, and the deodorizing furnace 4 and for ensuring the combustion air in the incinerator 3. .

The outline of the equipment 1 has been described above, and its function will be described below. (1) Raw garbage or the like to be treated is put into the fermentation drying tank 2 by the lifter 13 while being put in the biodegradable plastic bag 14. At this time, so-called fermentative bacteria such as natto and yeast are simultaneously introduced. 7 in tank 2
The temperature is maintained at 0 to 80 ° C., and the amount of about 1 ton of the object to be treated is reduced to an okara state and dried for about 3 hours. 2 The object to be processed in a predetermined state is discharged to the storage tank 16 and sequentially incinerated in the incinerator 3. 3. The exhaust gas generated by the incineration process is deodorized in the deodorization furnace 4, is used for the process in the fermentation drying tank 2, and is then discharged to the outside. The incineration ash 29 is collected from the lower part of the incineration treated material recovery chamber 28.

The operation is performed as described above, but the processing facility 1 takes sufficient measures against odor.
This configuration will be described. As described above, the main odorous components are processed by the deodorizing furnace 4. In the equipment of the present application, the processed product input port 11 of the fermentation drying tank 2 is used.
However, it can be opened and closed airtightly. Further, as described above, the moving route of the object to be treated or the exhaust gas passing through the fermentation drying tank 2, the incinerator 3, and the deodorizing furnace 4 has a closed structure, and the most downstream side of this route is the above-mentioned attraction fan. The structure is connected to the outside air via 34. Therefore, due to the function of the fan 34, the inside of the above-mentioned path is maintained at a pressure lower than the atmospheric pressure, so that the odorous gas does not leak to the outside. That is, the induction fan 34 functions as a decompression maintaining mechanism that maintains the inside of the passage at a pressure lower than the atmospheric pressure.

[0014]

Therefore, in the treatment equipment of the present invention, it is possible to obtain the treatment equipment having a relatively compact structure and capable of reducing the amount of the fermentable material to be processed without generating a bad odor. .

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a diagram showing a system configuration of a processing facility.

[Figure 2] Front view of processing equipment

[Figure 3] Side view of processing equipment

[Fig. 4] Exploded plan view of processing equipment

[Explanation of symbols]

 2 Fermentation / drying tank 3 Incinerator 4 Deodorizing furnace 5 Heat recovery path 6 Emission gas introduction path 11 Treated material input port 14 Biodegradable plastic bag 16 Storage tank 20 Treated amount control means 21 Treated material status detection means 27 Treated material input part 34 Reduced pressure maintenance mechanism

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location F23G 5/00 108 F23G 5/20 ZABA 5/16 ZAB 5/50 ZABG 5/20 ZAB ZABQ 5/50 ZAB B09B 3/00 ZABD 303M (72) Inventor Mitsumoto Mitsumi Osaka Prefecture Osaka City, Higashisei-ku, 1-2-4 Nakamichi, Osaka Gas Engineering Co., Ltd. Co., Ltd. (72) Inventor, Yan Yan, 920, Nagahama, Maizuru City, Kyoto Prefecture, Keihanna Environment Co., Ltd. Inventor Katsuya Tsuruta 2-2-1 Kamiyama, Ichinomiya-shi, Aichi Stock Company Oaks

Claims (7)

[Claims] 1. A fermentation drying tank (2) in which a fermentation-treatable substance to be treated containing water is introduced, and the substance to be treated is fermented and dried under a heating condition, and fermentation is performed in the fermentation dryer (2). An incinerator (3) for incinerating the object to be treated that has been dried
And a deodorizing furnace (4) for deodorizing the exhaust gas with odor generated from the incinerator (3) by burning, and the deodorized exhaust gas generated from the deodorizing furnace (4) is subjected to the fermentation drying. A heat recovery path (5) that leads to a tank (2) to be a heat source for heating, and odorous gas and steam generated in the fermentation drying tank (2) are deodorizing furnace (4) or incinerator (3).
The incinerator (3) is provided below the deodorizing furnace (4), and the deodorizing furnace (4) is provided below the fermentation drying tank (2). Treatment equipment. 2. The treatment facility according to claim 1, wherein the incinerator (3) is a rotary kiln incinerator. 3. A fermenting / drying tank (2) into which the to-be-treated material is put in is configured such that a treated material inlet (11) can be opened and closed in an airtight manner, and the fermentation / drying tank (2) and the incinerator are incinerated. The pressure reduction maintaining mechanism (34) according to claim 1 or 2, further comprising a decompression maintaining mechanism (34) for maintaining a pressure lower than atmospheric pressure in a moving path of the object to be treated or the exhaust gas passing through the furnace (3) and the deodorizing furnace (4). Processing equipment. 4. A storage tank (16) for temporarily storing the fermented and dried processed material obtained in the fermentation treatment tank (2) between the fermentation treatment tank (2) and the incinerator (3). )
And a fixed amount supply device (18) (19) for charging the fermented and dried material to be processed from the storage tank (16) into the incinerator (3) by a predetermined amount. The processing equipment according to any one of 1. 5. A processed product status detecting means (2) for detecting a fermentation dry condition of the object to be processed in the fermentation drying tank (2).
The process amount adjusting means (20) for controlling the incineration amount in the incinerator (3) on the basis of the detection result of the processed matter state detecting means (21).
The indicated processing equipment. 6. The treatment facility according to claim 1, further comprising a treated substance charging section (27) capable of directly charging an incinerable treated substance to the incinerator (3). 7. A biodegradable plastic bag containing starch as a main component, wherein the fermentable material to be treated containing the water is used in the treatment equipment according to any one of claims 1 to 6. A method of using the processing equipment, which is stored in (14) and put into the fermentation drying tank (2).