JPH11300322A - Treatment of organic waste and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To pass pressure air having desired compression heat through the central part of organic waste to perform sufficient aeration and also to make good use of it for heating of the waste. SOLUTION: In this method of treating organic waste in which organic waste fed into a rotary body (a) is transferred while agitated by a fixed agitating blade body (b) in accordance with the rotation of the rotary body (a) and dissipation type fermenting treatment or recycle type fermenting and drying treatment is performed the while, from air nozzles 23 of a pressure air feeding pipe (c) provided extending along a hollow fixed axis 10 on which agitating blade piece groups are provided at desired spaced intervals to constitute a fixed agitating blade body (b), pressure air having desired compression heat is jetted to around the hollow fixed axis 10 to pass it through the central part of the organic waste.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for treating organic waste.

[0002]

2. Description of the Related Art A small amount of organic waste generated in large quantities is subjected to a recycle fermentation and drying treatment so that it can be reused as compost for green agricultural land, and a large amount of organic waste generated only in small amounts is treated with lignin. An organic waste treatment system that can perform annihilation-type fermentation treatment so as to decompose into water and carbon dioxide by removing difficult-to-decompose substances such as fixed fixed blades with stirring blades arranged in rows on a fixed shaft And a rotating body including the same, which has already been proposed by the present inventor, which is disclosed in JP-B-59-1095.
No. 5, Japanese Patent Publication No. 3-41431 or Japanese Unexamined Patent Publication No.
-80173.

In general, small amounts of organic waste obtained in large quantities include sewage sludge, livestock manure, fishery processing waste, paper mill sludge, and the like. Various types of organic waste generated only in small amounts include restaurants and hotels. Or, there is organic waste for business such as leftovers generated in schools. The former is considered to be suitable for re-use as compost for green agricultural land from the viewpoints of inventory, distribution and economics, etc., because the small amount and large amount are generated. It is said that reuse is difficult in terms of economy and economics.

[0004]

In the above-mentioned conventional organic waste treatment method, the organic waste put into the rotating body is stirred by the stirring action of the fixed stirring blades with the rotation of the rotating body. While being transferred to the outlet side, a required disappearance type fermentation process or a recycle type fermentation drying process is performed, and during that time, aeration is performed by the outside air sent or sucked into the rotating body.

[0005] However, the outside air sent or sucked into the rotating body is heated by fermentation heat of organic waste or the like, and rises and stays in an upper portion of the rotating body. Due to its weakness, it is discharged to the outside through the odorous gas discharge duct attached to the rotating body, resulting in poor contact with the organic waste and not being able to expect a sufficient aeration effect, and lowering the fermentation temperature or fermentation drying temperature of the organic waste. There was even fear.

According to the present invention, the organic waste is lifted by the fixed blade pieces constituting the group of stirring blade pieces by jetting pressure air having a required heat of compression around the hollow fixed shaft of the fixed stirring blade body. Blowing the pressurized air into the gap formed around the hollow fixed shaft, especially on the upper part, to perform sufficient aeration, and to use the compression heat of the pressurized air to heat the organic waste It is.

[0007]

According to the method of the present invention, the organic waste charged in the horizontal cylindrical rotating body a is transferred while being stirred by the fixed stirring blades b according to the rotation of the rotating body a. In the meantime, in the organic waste treatment method in which the disappearance type fermentation treatment or the recycle type fermentation drying treatment is performed, the stirring blade pieces are arranged at required intervals and arranged along the hollow fixed shaft 10 constituting the fixed stirring blade body b. From the air nozzle 23 of the compressed air supply pipe c, compressed air having required compression heat is jetted around the hollow fixed shaft 10 and blown into the center of the organic waste.

In the above, the fermentation treatment of the organic waste is carried out without using a heating source such as the burner 19, that is, the medium-temperature (20 to 40 ° C.) fermentation treatment exclusively using the compression heat of the compressed air and the heat of fermentation. To remove the organic waste, except for the persistent substances such as lignin contained therein,
A so-called annihilation-type fermentation process in which water and carbon dioxide are decomposed in a short period of time, or a fermentation and drying process of organic waste is added in addition to using a heating source such as a burner 19,
High temperature using compression heat of fermentation air and heat of fermentation (50 ~
80 ° C.) A fermentation drying treatment is carried out, and a so-called recycle-type fermentation drying treatment for obtaining green agricultural compost from the organic waste is selectively employed.

In the above, it is preferable to control the temperature of the compression heat of the compressed air to maintain it at about 35 ° C. by adjusting the pressure of the compressed air within the range of 3000 to 4000 mmAq.

According to the apparatus of the present invention, the organic waste put in the horizontal cylindrical rotating body a is transferred while being stirred by the fixed stirring blades b in accordance with the rotation of the rotating body a. In the organic waste treatment apparatus for treating or recycling fermentation and drying, the fixed stirring blade b
Is fixed along the axis of the rotating body a.
And a plurality of air nozzles 23 are arranged in the pressure air supply pipe c along the hollow fixed shaft 10 along the pressure air supply pipe c. Further, a blower or an air compressor 22 is connected to one outer end of the pressurized air supply pipe c so that the pressurized air can be ejected from the plurality of air nozzles 23 around the hollow fixed shaft 10. It becomes like this.

In the above, it is appropriate that the pressure air supply pipe c is inserted and installed in the hollow fixed shaft 10 and the air nozzle 23 is protruded from the hollow fixed shaft 10 or fixedly installed on the outer periphery of the hollow fixed shaft 10. Yes and also air nozzle 2
It is recognized that the screw 3 is preferably provided with a screw.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the organic waste treatment apparatus of the present invention shown in the drawing generally has a horizontal cylindrical shape in which a heat insulating material 1 such as asbestos or asbestos is wound on the outer peripheral surface for heat storage. The two ends of the rotating body a are connected to the raw material receiving body 3 and the product outlet body 4 which are hollow bodies installed on the base 2, and the outer peripheral tire 5 of the rotating body a is pivotally supported on the base 2. The roller 6 is mounted on the roller 6 and has a rotating body a on which a fixed stirring blade b and a pressure air supply pipe c are provided. Hereinafter, the rotary body a, the fixed stirring blade body b, the raw material receiving body 3, the product outlet body 4, and the pressurized air supply pipe c will be sequentially described in detail.

The rotating body a is composed of an endless chain 8 wound around a central outer peripheral gear 7 and a reduction gear 9 ′ driven by a motor 9.
Is rotated by driving through.

The fixed stirring blade body b is composed of a hollow fixed shaft 10 laid horizontally along the axis of the rotating body a, and a group of stirring blade pieces arranged in a row at a required interval. Both ends of the hollow fixed shaft 10 are loosely fitted to the bearing sleeves 11 and 12 attached and fixed to the raw material receiving body 3 and the product sending / receiving body 4 so as to be able to slightly rotate and axially move. Axis 10
Therefore, the fixed stirring blade body b can rotate and move in the axial direction within a required range.

Thus, during operation of the present apparatus, the hollow fixed shaft 10 can be extended or contracted in the axial direction by thermal expansion, and an organic material is located between the fixed stirring blade b and the rotating body a. The hollow fixed shaft 10 can rotate a little when foreign matter in the waste is bitten, so that the shock applied to the related parts can be reduced to prevent damage or detachment. It is.

The above-mentioned stirring blade piece group includes a plurality of fixed blade pieces 1.
3. In this example, four fixed blade pieces 13 radially arranged with a phase difference of 90 degrees are extended from the hollow fixed shaft 10, and a large number of sets of the fixed blade pieces 13 are equally spaced in the axial direction of the hollow fixed shaft 10. Are arranged in a row.

On the inner peripheral surface of the rotating body a, a product delivery port 4 is provided.
A large number of agitating feed pieces 14 inclined downward toward the side are provided in a so-called spiral arrangement so as to be staggered in the circumferential direction of the rotating body a and spaced apart in the axial direction thereof.

15 is a guide set at a required angle so as to rotate inside the raw material receiving body 3 together with the rotating body a and forcibly guide organic waste from the receiving body 3 to the rotating body a. Three wing pieces are provided at equal intervals, each of which is inclined between both ends of two long and short stays 15 ′ having bases fixed to the inner peripheral surface of the opening of the rotary body a on the side of the raw material receiving body 3. It has been established.

Reference numeral 16 denotes a stirring rod which rotates in the product outlet body 4 together with the rotating body a and agitates so that organic waste is guided to the outlet 4 'of the product outlet body 4.
Three of them are installed at equal intervals, and each of them has a base end fixed to the inner peripheral surface of the opening of the rotary body a on the side of the product outlet 4 by welding or other required means.

The raw material receiving body 3 has a charging port 17 with a lid, and the feeding of the raw material into the rotary body a is performed through the charging port 17 with the lid. An exhaust duct 18 is connected to the upper side of the raw material receiving body 3, and odorous exhaust gas generated in the rotating body a is discharged from the raw material receiving body 3 side.

The product outlet 4 is provided with a furnace tube 20 provided with, for example, a burner 19 as a heat source. The burner 19 has an intake fan 21 so that hot air is sent into the rotary body a through the furnace tube 20. As a heat source, a heater can be used instead of the burner, or both can be provided side by side.

The pressurized air supply pipe c is inserted into and fixed to the hollow fixed shaft 10, and a blower or an air compressor 22 is connected to one outer end of the pressure air supply tube c. And pressurized air heated to a required heating state by the heat of compression from these many twisted air nozzles 23 into the rotating body a, specifically, a hollow fixed shaft. 10 can be ejected (see FIG. 4).
As described above, the most important point of the present invention is a configuration in which the heated pressurized air can be ejected around the hollow fixed shaft 10.

The heat of compression of the compressed air is generally about 12 ° C. at a static pressure of 1000 mmAq. In the apparatus of the present invention, the temperature of about 35 ° C. The temperature is controlled by adjusting the pressure of the compressed air in the range of ４4000 mmAq.

The pressure air supply pipe c is connected to the hollow fixed shaft 1
As shown in FIG. 5, instead of being inserted and fixed in the inside of the hollow body 0, it may be provided along the outer peripheral surface of the hollow fixed shaft 10 by, for example, welding. Since it is directly exposed to the inside, there is no trouble of projecting through the hollow fixed shaft 10 as described above. However, it is clear that the organic waste must be firmly fixed so as to have a predetermined strength against the flow of the organic waste in the rotating body a.

The input of the organic waste to be treated is
After the burner 19 is ignited to bring the inside of the rotary body a to a required temperature, and in some cases without igniting the burner 19, the process is performed through the inlet 17 with the lid on the raw material receiving body 3. When the rotating body a is rotated relatively slowly, the inputted organic waste is introduced into the guide blade piece 1.
5, is guided from the raw material receiving body 3 into the rotary body a, and is slowly transferred to the product outlet body 4 side while being stirred by the stirring feed piece 14 and each fixed blade piece 13 of the fixed fixed stirring blade body b. Is done.

In this case, a large number of stirring feed pieces 14 are provided on the inner peripheral surface.
Is rotated, so that the organic waste rises inside the rotating body a while being greatly stirred, and
Many fixed wing pieces 13 fixed as they fall
The organic waste is constantly stirred in its entirety evenly while being crushed and stirred.

Each of the fixed blade pieces 13 constituting the stirring blade piece group of the fixed fixed stirring blade body b has a resistance to the above-mentioned transfer of the raw material, so that the hollow fixed shaft 10 which is the center of the organic waste to be transferred is provided. A gap is formed in the peripheral portion, especially the upper portion, of the airbag, and pressurized heated air in a required heated state is sent into the gap from a number of air nozzles 23 with a screw in the pressure air supply pipe c.

In this way, the organic waste is transferred from the raw material receiving body 3 to the rotating body a and the product sending / receiving body 4 while being stirred, while being heated and subjected to fermentation drying treatment or fermentation treatment. When the door of the outlet 4 'is opened, the product is pushed out of the outlet 4' as a desired product from the outlet 4 'by the agitating rod 16 which rotates inside the product outlet body 4.

The burner 19 is automatically controlled by a temperature detector (not shown) provided at a required position in the product outlet 4 of the rotary body a. That is, the burner 19 automatically ignites when the temperature in the rotating body a falls below the lower limit set temperature (for example, 60 ° C.), and extinguishes automatically when the temperature rises above the upper limit set temperature. The odorous exhaust gas generated in the rotating body a is discharged through the exhaust duct 18.

Embodiment 1 of Organic Waste Disposal Method A recycle fermentation drying process for producing green agricultural compost from small amounts and large quantities of organic waste using the present apparatus having the above-mentioned structure requires a burner. After igniting 19 to set the inside of the rotating body a to, for example, 65 to 75 ° C., the organic waste is charged into the raw material receiving body 3. By the way, this 65-
75 ° C. is a temperature range in which bacteria harmful to green farmland such as uric acid bacteria and Escherichia coli are killed.

According to the rotation of the rotating body a, the inputted organic waste rises inside the rotating body a while being greatly stirred by the agitating feed piece 14 and the fixed blade pieces 13 of the fixed stirring blade b. In addition, the required fermentation and drying along with the activation of the required aerobic microorganisms progress while the whole amount is agitated and transferred while colliding with the fixed wing pieces 13 as they fall and the whole amount is stirred and transferred.

In the above, each fixed blade piece 13 of the fixed stirring blade body b has a resistance to the above-mentioned transfer of the organic waste, as described above, so that the hollow fixed portion which is the center of the organic waste being transferred is hollow. A gap is formed in the upper part of the periphery of the shaft 10, and the gap is 3,000 to 400 through a pressurized air supply pipe c.
The pressure air is fed at about 35 ° C., the pressure of which is adjusted within the range of 0 mmAq.

As a result, the organic waste is heated almost uniformly, including the central portion, by the heating by the burner 19 and the heating by the pressurized air, and the aeration is sufficiently performed. The desired compost for green agricultural land which has been subjected to the desired fermentation and drying treatment can be obtained.

The aerobic microorganisms and enzymes that ferment a small amount and a large amount of organic waste such as sewer sludge, livestock manure, fishery processing waste, or paper mill sludge as green compost are not available. , 0.05-0.1
Air volume of about 5 m ³ / m ³ , moisture 45-60%, temperature 6
It is empirically known that the metabolism is activated at 5-75 ° C.

Embodiment 2 of Organic Waste Disposal Method Using the present apparatus having the above-mentioned structure, many kinds of organic waste generated only in a small amount are extinguished into water and carbon dioxide gas by removing hardly decomposable substances such as lignin. Burner 1 for fermentation
The organic waste is thrown into the raw material receiving body 3 without igniting 9, that is, without heating the inside of the rotating body a. It is apparent that the burner 19 may be ignited as necessary, especially in a cold region, in consideration of the relationship with the outside air temperature.

In the same manner as in the first embodiment, the inputted organic waste is agitated by the agitating feed piece 14 and each fixed wing piece 13 of the fixed fixed stirring wing body b according to the rotation of the rotary body a. As it rises inside the rotating fuselage a, it also collides with the fixed wing pieces 13 as it falls and is crushed,
In addition, due to the resistance of each fixed blade piece 13 of the fixed stirring blade body b, the hollow fixed shaft 1 which is the center of the organic waste being transferred is
Pressure air at about 35 ° C., pressure-adjusted in the range of 3000 to 4000 mmAq, is fed into the gap formed in the upper part of the periphery of 0 through a pressure air supply pipe c.

As a result, while the entire amount of the organic waste is stirred and transported evenly, the whole, including the central portion, is heated almost uniformly, and a sufficient aeration is performed. Is performed.

The above-mentioned organic waste for business use, such as garbage, generated in small quantities in restaurants, hotels or schools, except for lignin and other hardly decomposable substances, is decomposed into water and carbon dioxide by specific microorganisms or the like. It is empirically known that the enzyme activates metabolism at an air volume of about 0.03 m ³ / m ³ , a water content of 45%, and a temperature of about 35 ° C.

[0039]

As is apparent from the above description, according to the present invention, by discharging required pressure air around the hollow fixed shaft of the fixed stirring blade body, organic waste can be removed from the stirring blade piece. The pressurized air can be blown into the air gap formed by the fixed wing pieces constituting the group and formed around the hollow fixed shaft, particularly at the upper part thereof, and therefore, into the center of the organic waste, so that sufficient aeration can be performed. At the same time, the heat of compression of the compressed air can contribute to the fermentation or fermentation drying of the organic waste, and the organic waste can be efficiently subjected to the disappearance-type fermentation treatment or the recycle-type fermentation drying treatment.

That is, for example, the pressure of the compressed air is adjusted in the range of 3000 to 4000 mmAq, and the heat of compression is reduced to 35 ° C.
The extinguishing fermentation treatment of organic waste can be performed without using a heating source such as a burner while controlling the temperature maintained before and after.

Further, by using a heating source such as a burner and controlling the temperature of the pressurized air in the same manner as described above, the recycling type fermentation and drying of organic waste can be performed.
At least the amount of heating by the pressurized air can be performed by reducing the use ratio of a heating source such as a burner.

[Brief description of the drawings]

FIG. 1 is a sectional view of an organic waste treatment apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a front view of a main part showing an installation state of a pressure air supply pipe.

FIG. 5 is a front view of a main part showing another example of the installation state of the pressure air supply pipe.

[Explanation of symbols]

 a rotating body b fixed stirring blade body c pressurized air supply pipe 10 hollow fixed shaft 22 air compressor 23 air nozzle

[Procedure amendment]

[Submission date] April 16, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Organic waste treatment method and apparatus

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for treating organic waste.

[0002]

2. Description of the Related Art A small amount of organic waste generated in large quantities is subjected to a recycle fermentation and drying treatment so that it can be reused as compost for green agricultural land, and a large amount of organic waste generated only in small amounts is treated with lignin. An organic waste treatment system that can perform annihilation-type fermentation treatment so as to decompose into water and carbon dioxide by removing difficult-to-decompose substances such as fixed fixed blades with stirring blades arranged in rows on a fixed shaft And a rotating body including the same, which has already been proposed by the present inventor, which is disclosed in JP-B-59-1095.
No. 5, Japanese Patent Publication No. 3-41431 or Japanese Unexamined Patent Publication No.
-80173.

In general, small amounts of organic waste obtained in large quantities include sewage sludge, livestock manure, fishery processing waste, paper mill sludge, and the like. Various types of organic waste generated only in small amounts include restaurants and hotels. Or, there is organic waste for business such as leftovers generated in schools. The former is considered to be suitable for re-use as compost for green agricultural land from the viewpoints of inventory, distribution and economics, etc., because the small amount and large amount are generated. It is said that reuse is difficult in terms of economy and economics.

[0004]

In the above-mentioned conventional organic waste treatment method, the organic waste put into the rotating body is stirred by the stirring action of the fixed stirring blades with the rotation of the rotating body. While being transferred to the outlet side, a required disappearance type fermentation process or a recycle type fermentation drying process is performed, and during that time, aeration is performed by the outside air sent or sucked into the rotating body.

[0005] However, the outside air sent or sucked into the rotating body is heated by fermentation heat of organic waste or the like, and rises and stays in an upper portion of the rotating body. Due to its weakness, it is discharged to the outside through the odorous gas discharge duct attached to the rotating body, resulting in poor contact with the organic waste and not being able to expect a sufficient aeration effect, and lowering the fermentation temperature or fermentation drying temperature of the organic waste. There was even fear.

According to the present invention, the organic waste is lifted by the fixed blade pieces constituting the group of stirring blade pieces by jetting pressure air having a required heat of compression around the hollow fixed shaft of the fixed stirring blade body. The compressed air is blown into the gap formed around the hollow fixed shaft to perform sufficient aeration, and the compression heat of the compressed air is used to heat the organic waste. .

[0007]

According to the method of the present invention, a group of agitating blades are arranged at required intervals on a hollow fixed shaft 10 which is laid horizontally along an axis of a rotating cylindrical body a. A fixed stirring blade b is disposed and the organic waste put into the rotating body a is transferred while being stirred by the fixed stirring blade b in accordance with the rotation of the rotating body a. In the organic waste treatment method in which the treatment or the recycle fermentation drying treatment is carried out, the pressurized air having the required compression heat is supplied from a number of air nozzles 23 of a pressure air supply pipe c provided along the lower portion of the outer peripheral surface of the hollow fixed shaft 10. It is intended to squirt downward.

In the above, the fermentation treatment of the organic waste is carried out without using a heating source such as the burner 19, that is, the medium-temperature (20 to 40 ° C.) fermentation treatment exclusively using the compression heat of the compressed air and the heat of fermentation. To remove the organic waste, except for the persistent substances such as lignin contained therein,
A so-called annihilation-type fermentation process in which water and carbon dioxide are decomposed in a short period of time, or a fermentation and drying process of organic waste is added in addition to using a heating source such as a burner 19,
High temperature using compression heat of fermentation air and heat of fermentation (50 ~
80 ° C.) A fermentation drying treatment is carried out, and a so-called recycle-type fermentation drying treatment for obtaining green agricultural compost from the organic waste is selectively employed.

In the above, it is preferable to control the temperature of the compression heat of the compressed air to maintain it at about 35 ° C. by adjusting the pressure of the compressed air within the range of 3000 to 4000 mmAq.

The apparatus according to the present invention comprises a fixed stirring blade having a group of stirring blades arranged at required intervals on a hollow fixed shaft 10 laid horizontally along the axis of a rotating cylindrical rotary body a. The body b is disposed, and the organic waste put into the rotating body a is transferred while being stirred by the fixed stirring blades b according to the rotation of the rotating body a, and during this time, the organic waste to be subjected to fermentation treatment or fermentation drying treatment In the material processing apparatus, the pressure air supply pipe c
Is provided along the lower part of the outer peripheral surface of the hollow fixed shaft 10, and the air nozzle 23 is disposed in the pressure air supply pipe c so as to face down between the stirring blade piece groups of the hollow fixed shaft 10. Further, a blower or an air compressor 22 is connected to one outer end of the pressure air supply pipe c so that the pressure air is blown downward from the plurality of air nozzles 23. In the above, it is recognized that the air nozzle 23 preferably has a screw.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the organic waste treatment apparatus of the present invention shown in the drawing generally has a horizontal cylindrical shape in which a heat insulating material 1 such as asbestos or asbestos is wound on the outer peripheral surface for heat storage. The two ends of the rotating body a are connected to the raw material receiving body 3 and the product outlet body 4 which are hollow bodies installed on the base 2, and the outer peripheral tire 5 of the rotating body a is pivotally supported on the base 2. The roller 6 is mounted on the roller 6 and has a rotating body a on which a fixed stirring blade b and a pressure air supply pipe c are provided. Hereinafter, the rotary body a, the fixed stirring blade body b, the raw material receiving body 3, the product outlet body 4, and the pressurized air supply pipe c will be sequentially described in detail.

The rotating body a is provided with an endless chain 8 wound around a central outer peripheral gear 7 by a motor 9 by a reduction gear 9 '.
Is rotated by driving through.

The fixed stirring blade body b is composed of a hollow fixed shaft 10 laid horizontally along the axis of the rotary body a, and a group of stirring blade pieces arranged in a row at a required interval. Both ends of the hollow fixed shaft 10 are loosely fitted to the bearing sleeves 11 and 12 attached and fixed to the raw material receiving body 3 and the product sending / receiving body 4 so as to be able to slightly rotate and axially move. Axis 10
Therefore, the fixed stirring blade body b can rotate and move in the axial direction within a required range.

Thus, during operation of the present apparatus, the hollow fixed shaft 10 can be extended or contracted in the axial direction by thermal expansion, and an organic material is provided between the fixed stirring blade body b and the rotary body a. The hollow fixed shaft 10 can rotate a little when foreign matter in the waste is bitten, so that the shock applied to the related parts can be reduced to prevent damage or detachment. It is.

The above-mentioned stirring blade piece group includes a plurality of fixed blade pieces 1.
3. In this example, four fixed blade pieces 13 radially arranged with a phase difference of 90 degrees are extended from the hollow fixed shaft 10, and a large number of sets of the fixed blade pieces 13 are equally spaced in the axial direction of the hollow fixed shaft 10. Are arranged in a row.

On the inner peripheral surface of the rotating body a, a product delivery port 4 is provided.
A large number of agitating feed pieces 14 inclined downward toward the side are provided in a so-called spiral arrangement so as to be staggered in the circumferential direction of the rotating body a and spaced apart in the axial direction thereof.

15 is a guide set at a required angle so that the inside of the raw material receiving body 3 rotates together with the rotary body a and the organic waste is forcibly guided from the receiving body 3 to the rotary body a. Three wing pieces are provided at equal intervals, each of which is inclined between both ends of two long and short stays 15 ′ having bases fixed to the inner peripheral surface of the opening of the rotary body a on the side of the raw material receiving body 3. It has been established.

Reference numeral 16 denotes a stirring rod which rotates in the product outlet body 4 together with the rotating body a and agitates so that organic waste is guided to the outlet 4 'of the product outlet body 4.
Three of them are installed at equal intervals, and each of them has a base end fixed to the inner peripheral surface of the opening of the rotary body a on the side of the product outlet 4 by welding or other required means.

The raw material receiving body 3 has a charging port 17 with a lid. Feeding of the raw material into the rotary body a is performed through the charging port 17 with the lid. An exhaust duct 18 is connected to the upper side of the raw material receiving body 3, and odorous exhaust gas generated in the rotating body a is discharged from the raw material receiving body 3 side.

The product outlet 4 is provided with a furnace tube 20 provided with, for example, a burner 19 as a heat source. The burner 19 has an intake fan 21 so that hot air is sent into the rotary body a through the furnace tube 20. As a heat source, a heater can be used instead of the burner, or both can be provided side by side.

The pressurized air supply pipe c is provided along the lower portion of the outer peripheral surface of the hollow fixed shaft 10 by, for example, welding, and connected to a blower or an air compressor 22 at one outer end thereof and has a number of screws. The air nozzles 23 are arranged so as to face down between the stirring blade piece groups of the hollow fixed shaft 10.

That is, the compressed air, which has been heated to a required state by the heat of compression, is supplied to the air nozzles 23 having a large number of screws.
, So that it can be jetted out of the rotating body a, specifically, below the hollow fixed shaft 10 (see FIG. 4).

In this case, the torsion air nozzles 23 are directly exposed in the rotary body a, so that the air nozzles 23 from the inside of the hollow fixed shaft 10 are compared with the case where they are arranged in the hollow fixed shaft 10, for example. There is no trouble to protrude. However, it is clear that the organic waste must be firmly fixed so as to have a predetermined strength against the flow of the organic waste in the rotating body a.

The compression heat of the compressed air is generally about 12 ° C. at a static pressure of 1000 mmAq. In the apparatus of the present invention, in order to maintain the temperature of about 35 ° C. in consideration of the heat radiation during the air supply. The temperature is controlled by adjusting the pressure of the compressed air in the range of ４4000 mmAq.

The input of the organic waste to be treated is
After the burner 19 is ignited to bring the inside of the rotary body a to a required temperature, and in some cases without igniting the burner 19, the process is performed through the inlet 17 with the lid on the raw material receiving body 3. When the rotating body a is rotated relatively slowly, the inputted organic waste is introduced into the guide blade piece 1.
5, is guided from the raw material receiving body 3 into the rotary body a, and is slowly transferred to the product outlet body 4 side while being stirred by the stirring feed piece 14 and each fixed blade piece 13 of the fixed fixed stirring blade body b. Is done.

In this case, a large number of stirring feed pieces 14 are provided on the inner peripheral surface.
Is rotated, so that the organic waste rises inside the rotating body a while being greatly stirred, and
Many fixed wing pieces 13 fixed as they fall
The organic waste is constantly stirred in its entirety evenly while being crushed and stirred.

Each of the fixed blade pieces 13 constituting the stirring blade piece group of the fixed fixed stirring blade body b has a resistance to the above-mentioned transfer of the raw material, so that the hollow fixed shaft 10 which is the center of the organic waste to be transferred is provided. A gap is formed in the peripheral portion, especially the upper portion, of the airbag, and pressurized heated air in a required heated state is sent into the gap from a number of air nozzles 23 with a screw in the pressure air supply pipe c.

In this way, the organic waste is transferred from the raw material receiving body 3 to the rotating body a and the product sending / receiving body 4 while being stirred, while being heated and subjected to fermentation drying treatment or fermentation treatment. When the door of the outlet 4 'is opened, the product is pushed out of the outlet 4' as a desired product from the outlet 4 'by the agitating rod 16 which rotates inside the product outlet body 4.

The burner 19 is automatically controlled by a temperature detector (not shown) provided at a required position in the product outlet 4 of the rotary body a. That is, the burner 19 automatically ignites when the temperature in the rotating body a falls below the lower limit set temperature (for example, 60 ° C.), and extinguishes automatically when the temperature rises above the upper limit set temperature. The odorous exhaust gas generated in the rotating body a is discharged through the exhaust duct 18.

First Embodiment of Organic Waste Disposal Method A recycle fermentation and drying process for producing green agricultural compost from a small amount and a large amount of organic waste using the present apparatus having the above-mentioned structure requires a burner. After igniting 19 to set the inside of the rotating body a to, for example, 65 to 75 ° C., the organic waste is charged into the raw material receiving body 3. Incidentally, the temperature of 65 to 75 ° C. is a temperature range in which bacteria harmful to green farmland such as uric acid bacteria and Escherichia coli are killed.

According to the rotation of the rotating body a, the inputted organic waste rises inside the rotating body a while being greatly stirred by the agitating feed piece 14 and the fixed blade pieces 13 of the fixed stirring blade b. In addition, the required fermentation and drying along with the activation of the required aerobic microorganisms progress while the whole amount is agitated and transferred while colliding with the fixed wing pieces 13 as they fall and the whole amount is stirred and transferred.

In the above, each fixed blade piece 13 of the fixed stirring blade body b has a resistance to the above-mentioned transfer of the organic waste, as described above, so that the hollow fixed portion which is the center of the organic waste being transferred is hollow. A gap is formed in the upper part of the periphery of the shaft 10, and the gap is 3,000 to 400 through a pressurized air supply pipe c.
Pressure air at about 35 ° C., pressure-adjusted in the range of 0 mmAq, is sent.

As a result, the organic waste is heated almost uniformly, including the central portion, by the heating by the burner 19 and the heating by the pressurized air, and the aeration is sufficiently performed. The desired compost for green agricultural land which has been subjected to the desired fermentation and drying treatment can be obtained.

The aerobic microorganisms and enzymes that ferment a small amount and a large amount of organic waste such as sewer sludge, livestock manure, fishery processing waste, or paper mill sludge as green compost are not available. , 0.05-0.1
Air volume of about 5 m ³ / m ³ , moisture 45-60%, temperature 6
It is empirically known that the metabolism is activated at 5-75 ° C.

Second Embodiment of Organic Waste Disposal Method By using the present apparatus having the above-mentioned structure, many kinds of organic waste generated only in a small amount are decomposed into water and carbon dioxide gas by removing hardly decomposable substances such as lignin. To perform the type fermentation treatment, the organic waste is charged into the raw material receiving body 3 without igniting the burner 19, that is, without heating the inside of the rotary body a. It is apparent that the burner 19 may be ignited as necessary, especially in a cold region, in consideration of the relationship with the outside air temperature.

In the same manner as in the first embodiment, the inputted organic waste is agitated by the agitating feed piece 14 and each fixed wing piece 13 of the fixed fixed stirring wing body b according to the rotation of the rotary body a. As it rises inside the rotating fuselage a, it also collides with the fixed wing pieces 13 as it falls and is crushed,
In addition, due to the resistance of each fixed blade piece 13 of the fixed stirring blade body b, the hollow fixed shaft 1 which is the center of the organic waste being transferred is
Through a pressure air supply pipe c, pressure air at about 35 ° C., pressure-adjusted within a range of 3000 to 4000 mmAq, is fed into a gap formed in an upper portion around the periphery of the zero.

As a result, while the entire amount of the organic waste is stirred and transported evenly, the whole, including the central portion, is heated almost uniformly, and a sufficient aeration is performed. Is performed.

The above-mentioned organic waste for business use, such as garbage, generated in small quantities in restaurants, hotels or schools, except for lignin and other hardly decomposable substances, is decomposed into water and carbon dioxide by specific microorganisms or the like. It is empirically known that the enzyme activates metabolism at an air volume of about 0.03 m ³ / m ³ , a water content of 45%, and a temperature of about 35 ° C.

[0039]

As is apparent from the above description, according to the present invention, by discharging required pressure air around the hollow fixed shaft of the fixed stirring blade body, organic waste can be removed from the stirring blade piece. The pressurized air can be blown into the air gap formed by the fixed wing pieces constituting the group and formed around the hollow fixed shaft, particularly at the upper part thereof, and therefore, into the center of the organic waste, so that sufficient aeration can be performed. At the same time, the heat of compression of the compressed air can contribute to the fermentation or fermentation drying of the organic waste, and the organic waste can be efficiently subjected to the disappearance-type fermentation treatment or the recycle-type fermentation drying treatment.

That is, for example, the pressure of the compressed air is adjusted in the range of 3000 to 4000 mmAq, and the heat of compression is reduced to 35 ° C.
The extinguishing fermentation treatment of organic waste can be performed without using a heating source such as a burner while controlling the temperature maintained before and after.

Further, by using a heating source such as a burner and controlling the temperature of the pressurized air in the same manner as described above, the recycling type fermentation and drying of organic waste can be performed.
At least the amount of heating by the pressurized air can be performed by reducing the use ratio of a heating source such as a burner.

[Brief description of the drawings]

FIG. 1 is a sectional view of an organic waste treatment apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a front view of a main part showing an installation state of a pressure air supply pipe.

[Description of Signs] a Rotating body b Fixed stirring blade body c Pressure air supply pipe 10 Hollow fixed shaft 22 Air compressor 23 Air nozzle

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Claims (8)

[Claims] 1. An organic waste charged in a horizontal cylindrical rotating body is transferred while being stirred by fixed stirring blades according to the rotation of the rotating body, during which the disappearance type fermentation treatment or the recycling type fermentation drying is performed. In the organic waste treatment method to be treated, a required compression heat is supplied from an air nozzle of a pressure air supply pipe along a hollow fixed shaft that constitutes the fixed stirring blade body by arranging a plurality of stirring blade pieces at required intervals. A method of treating an organic waste, comprising: blowing compressed air having the following formulas around the hollow fixed shaft and blowing the compressed air into the center of the organic waste. 2. The method according to claim 1, wherein the extinguishing fermentation of the organic waste is performed without using a heating source such as a burner. 3. The organic waste treatment method according to claim 1, wherein the recycle fermentation drying treatment of the organic waste is performed using a heating source such as a burner. 4. The temperature control for maintaining the compression heat of the compressed air at about 35 ° C. by adjusting the pressure of the compressed air in the range of 3000 to 4000 mmAq.
Or the organic waste treatment method according to 3. 5. An organic waste which is fed into a horizontal cylindrical rotating body while being stirred by a fixed stirring blade according to the rotation of the rotating body, during which the organic waste is subjected to fermentation treatment or fermentation drying treatment. In the material processing apparatus, the fixed stirring blade body is configured by arranging a plurality of stirring blade pieces at a required interval on a hollow fixed shaft traversing along the axis of the rotating body, and pressurizing air to the hollow fixed shaft. A number of air nozzles are arranged along the supply pipe along the supply pipe, and a blower or an air compressor is connected to one outer end of the supply pipe. An organic waste treatment apparatus characterized in that it can be ejected from a number of air nozzles around a hollow fixed shaft. 6. The organic waste treatment apparatus according to claim 5, wherein the pressure air supply pipe is inserted through the hollow fixed shaft and an air nozzle is projected from the hollow fixed shaft. 7. The organic waste treatment apparatus according to claim 5, wherein the pressure air supply pipe is fixedly installed on an outer periphery of the hollow fixed shaft. 8. The organic waste treatment apparatus according to claim 5, wherein the air nozzle has a screw.