JP2018171602A - Photocatalyst organic waste treatment equipment with rotary axis - Google Patents

Abstract

An object of the present invention is to provide a horizontally long cylindrical rotating drum type processing apparatus having a simple processing time, a simple structure, low manufacturing cost, and easy maintenance for fermentation and drying of organic waste. It is. [Solution] A fermentation drying treatment tank of a horizontally long cylindrical rotating drum type is used for the fermentation drying process, and in a rotating drum type fermentation drying treatment tank installed horizontally, a large number of scrapes are arranged on the inner surface of the body of the rotating drum. When equipped with a blade and a plurality of stirring blades arranged on a fixed rotating shaft supported on the central axis of the rotating drum, when the rotating drum rotates to transfer the organic waste from the input section to the discharging section, By combining the long distance transfer in the direction of the discharge part with the scraping blade and the short distance transfer in the direction of the input part with the stirring blade, the transfer in the direction of the discharge part is slow and aerobic fermentation. And the subsequent drying was performed sufficiently. [Selection] Figure 1

Description

The present invention relates to an apparatus for subjecting organic waste such as sewage sludge and animal excrement to a treatment subject to fermentation decomposition and drying treatment in a fermentation and drying treatment tank and obtaining compost as a residue of the fermentation treatment. In particular, the present invention relates to an organic waste treatment apparatus using a horizontally long cylindrical rotating drum type treatment tank.

A device that uses fermentative bacteria to treat organic waste such as sewage sludge and animal excrement, dry-process fermentation and drying, and obtain compost as residue, or compress the amount of residue Various proposals have been put into practical use.

When using a horizontal cylindrical rotating drum type processing tank for the fermentation drying process, to ferment the organic waste that has been put into the processing tank and to transfer the fermented residue after the processing to the discharge section Conventionally, while rotating the treatment tank, a blade for scraping up and reversing the organic waste inside the treatment tank is installed, and the organic waste that is picked up and transferred is received and further discharged in the discharge direction. Fixed blades were installed for agitation for transfer. (Patent No. 2985128)

In this case, both the blade for scraping and the fixed blade for agitation were angled so that the organic waste moved to the discharge side. However, when this is done, the transfer speed in the tank is high, and the organic waste is transferred to the discharge section before fermenting, and the drying is not progressing, so the water content is high and the viscosity remains high. There was a problem that it accumulated on the side and hindered driving.

Conventionally, the fermentation treatment residue accumulated on the discharge side is taken out from a discharge port provided in a non-rotating discharge portion at the end of the fermenter. However, since the residue flows continuously from the rotating drum portion, the entire processing operation is hindered unless the residue accumulated in the discharge portion is continuously taken out. Further, if the residue is accumulated in the discharge part, fermentation is inhibited, and solidification makes it difficult to discharge, so that the contents do not accumulate horizontally but become inclined accumulation that increases toward the outlet side. For this reason, there are problems such as providing a separate stirring rod that is coupled to the rotating drum unit and rotating together, or installing a large volume discharge unit so that some residue may accumulate. It was. (Patent 1348175)

Japanese Patent No. 2985128 Japanese Patent No. 1238175

In the present invention, when performing a fermentation treatment and a drying treatment in a fermentation / drying treatment tank using a horizontally long cylindrical rotating drum type fermentation / drying treatment apparatus as a treatment target, the organic waste is transferred in the treatment tank. The present invention provides an organic waste treatment apparatus that makes the speed appropriate and does not collect residue in the discharge section, and effectively advances the treatment.

The present invention
An apparatus mainly composed of a fermentation drying treatment tank for fermenting and drying organic waste,
The fermentation drying treatment tank is a horizontally long cylindrical rotating drum type, and includes a rotating drum and a fixed rotating shaft that is horizontally mounted along the central axis of the cylindrical shape,
While rotating the rotating drum, air is sent into the fermentation drying treatment tank, fermented while transferring the treatment target from the input part to the discharge part of the fermentation drying treatment tank, and dried.
A number of scraping blades arranged on the inner surface of the rotating drum are provided, and when the rotating drum is rotated, the scraping blades scrape the object to be treated and transfer it to the discharge unit,
It has a large number of stirring blades arranged on the fixed rotating shaft, and the stirring blades transport the processing object falling after being scraped up when rotating the rotary drum in the direction of the charging unit, and the distance of the transfer is An organic waste treatment apparatus characterized in that the scraping blade is smaller than a distance transferred in the direction of the discharge unit.

Furthermore, the present invention provides an organic waste treatment apparatus characterized in that a deodorizing device equipped with a thermal catalyst or a photocatalyst is disposed in a passage through which air sent to the fermentation drying treatment tank and exhaust gas generated by fermentation are discharged. It is.

In the present invention, it has a horizontally long cylindrical rotating drum type fermentation drying treatment tank, and in order to suppress anaerobic rot and advance aerobic fermentation, the organic waste to be treated is sufficiently inverted Since aeration can be performed, the processing time is short, the power for stirring is small, and there is a feature that a fermentation residue that can be used as a fertilizer can be obtained.

At that time, aerobic fermentation can be activated by actively introducing outside air into the fermentation and drying treatment tank using a blower, and the fermentation residue after fermentation can be efficiently dried.

In the fermentative drying process, it is necessary to reverse the organic waste to be treated. For this purpose, a large number of scraping blades are arranged on the inner surface of the rotating drum. The scraping blade scrapes organic waste when rotating the rotating drum, which is a fermentation drying treatment tank, in a predetermined direction (hereinafter, the direction of left rotation is referred to as normal rotation when the discharge unit is viewed from the input unit). It is structured to move slowly in the discharge direction as it is raised.

In addition, it is equipped with a large number of stirring blades fixedly placed on a fixed rotating shaft that lies horizontally along the central axis of the fermentation drying treatment tank. By rotating the rotating drum, the organic waste to be treated is scraped up. When falling after being dropped, it collides with the stirring blades and crushes the organic waste that has become a lump, and at the same time, it has a structure that returns to the input direction to some extent contrary to the scraping blades. Therefore, the processing target in the fermentation drying treatment tank is always transferred back and forth, and the whole is uniformly stirred.

If both the scraping blade and the stirring blade act so as to send the object to be processed in the direction of the discharge section according to the rotation of the rotary drum, the discharge section will reach the discharge section within a short time, and sufficient fermentation and drying will occur. Since the space of the discharge part is filled in a state where there is a lot of moisture and is sticky, the normal processing function cannot be performed. Therefore, the inventor has found that such a state can be prevented while continuously reversing and stirring if the feeding direction of the object to be processed by the two blades is reversed.

That is, the scraped blade installed on the rotating drum acts to send out the organic waste to be treated in the discharge direction, and the stirring blade installed on the fixed rotating shaft returns it slightly in the direction opposite to the discharge direction. As a result, the organic waste is reversed and stirred in the fermentation drying treatment tank, and moved back and forth while being comprehensively transferred in the discharge direction.

The overall moving speed can be adjusted by the structure of each of the scraping blade and the stirring blade, such as the dimensions, arrangement and angle, etc., the properties of the organic waste to be treated, the progress time of the fermentation treatment and the drying treatment Can be designed to achieve the most appropriate speed.

Separately, a cut-out mechanism is installed on the discharge part side and operated as appropriate, and it is possible to prevent the processing residue from filling the space on the discharge side by taking out the fermentation residue at an arbitrary timing. The operation can be continued in the state.

In addition, it is possible to cope with the odor which is always a problem in the fermentation and drying treatment of organic waste by additionally installing a deodorizing apparatus using a known photocatalyst or thermal catalyst.

A deodorizing apparatus using a photocatalyst chemically decomposes odor components by bringing exhaust gas coming out of a fermentation drying treatment tank into contact with a photocatalyst irradiated with ultraviolet light. A deodorizing device using a thermal catalyst is a device that chemically decomposes odorous components by heating exhaust gas coming out of a fermentation drying treatment tank to an appropriate temperature and bringing it into contact with the thermal catalyst.

Furthermore, by maintaining the pressure in the fermentation drying treatment tank slightly lower than the atmospheric pressure, the exhaust gas does not leak from the fermentation drying treatment tank or the piping before reaching the deodorizing apparatus. In order to make the horizontally long cylindrical rotating drum type fermentation drying treatment tank sealed to the atmosphere, a sealing mechanism is required between the rotating drum corresponding to the horizontal cylindrical barrel and the side plate fixed to the bottom of the cylindrical shape. . The diameter of the rotating drum is quite large, which increases the cost of the sealing mechanism and requires maintenance. However, if the pressure in the fermentation drying treatment tank is kept slightly lower than atmospheric pressure, the sealing mechanism can be simplified. It can be done or abolished, and the benefits are great.

Maintaining the pressure in the fermentation drying tank slightly lower than atmospheric pressure means that a suction blower is used instead of blowing in air using an extrusion blower when creating an air flow in the fermentation drying tank. It can be realized by sucking air and exhaust gas.

Put a humidity control material consisting of wood chips, etc., as a humidity control agent and fermenting bacteria support material in advance in the fermentation drying treatment tank, and add organic waste materials so that the wood chips can also work as a fermentation bacteria support material at the same time. Fermenting bacteria can be mixed in advance beforehand.

Thus, the fermentation residual material obtained by aerobic fermentation which advances in a fermentation drying processing tank can be used as compost.

As described above, in the fermentation and drying treatment tank equipped with the scraping blade and the stirring blade according to the present invention, a transfer speed suitable for fermentation treatment and drying treatment, that is, a treatment time is realized, and an efficient fermentation drying treatment apparatus is provided. it can.

Conceptual diagram of a horizontally long cylindrical rotating drum type fermentation drying treatment device Partial side view of rotating drum Front sectional view of rotating drum Action diagram of the scraping blade and stirring blade Explanatory drawing showing the transfer status of the processing target Conceptual diagram of cutting mechanism Conceptual diagram of the photocatalytic deodorizer Conceptual diagram of thermal catalyst deodorizer Conceptual diagram of hermetic seal of rotating drum

FIG. 1 shows a conceptual diagram of the entire horizontal cylindrical rotary drum type fermentation drying treatment apparatus except for the deodorizing apparatus. The configuration and operation will be described below with reference to the drawings. In FIG. 1, the deodorizing device is omitted because of the layout of the drawing. The fermentation drying treatment apparatus 1 is a facility centered on a fermentation drying treatment tank having a rotary drum 2, a fixed rotation shaft 3, a charging unit 4, and a discharging unit 5 as main elements. The rotary drum 2 has a horizontally long cylindrical shape with both sides cut off. The rotary drum 2 is supported by rollers 8 and can be freely rotated around a cylindrical shaft by a rotary drive mechanism (not shown). The fixed rotating shaft 3 is fixed on the central axis of the horizontally long cylindrical rotating drum 2 by a part of the input portion 4 and the discharging portion 5 fixed to the base 10 and a support member 9.

The right wall of the input unit 4 on the right side in the figure is airtight to the atmosphere. The left wall of the discharge unit 5 on the left side in the drawing is airtight with respect to the atmosphere except for the outlet to the cutting mechanism 13. The cutting mechanism 13 is airtight with respect to the atmosphere by a cutting gate. There are air-tight seals 21 at the portions on both sides where the rotary drum 2 and the input portion 4 and the discharge portion 5 extend in the longitudinal direction of the cylindrical shape and overlap each other, and the rotary drum 2 is kept airtight against the atmosphere. Overall, the fermentation and drying tank is airtight.

FIG. 2 is a partial side sectional view of the rotating drum. In the figure, only half of the cut surface passing through the central axis of the rotating drum 2 is visible. The scraping blades 6 are depicted in a state where they are arranged on the entire circumference including the part installed on the front half of the rotating drum 2 that cannot be seen.

As shown in FIG. 2, scraping blades 6 are arranged on the inner surface of the rotary drum 2 in a row in a spiral manner in the direction of the central axis of the cylinder. Each of the scraping blades 6 is perpendicular to the inner surface of the rotating drum 2, and the blade surface forms a certain angle with respect to the central axis of the rotating drum 2. The arrows shown in the figure indicate the overall direction of movement from the input portion to be processed toward the discharge portion.
Since there are a large number of scraping blades 6, only one scraping blade 6 is provided with a reference numeral in order to avoid complication.

Since there are many agitating blades 7, only one agitating blade 7 is provided with a symbol to avoid complication. On the fixed rotating shaft 3, four stirring blades 7 are perpendicular to the cylindrical central axis and orthogonal to each other, and are arranged at regular intervals in the longitudinal direction of the central axis. The blade surfaces of the respective stirring blades 7 form a certain angle with respect to the central axis of the cylinder.

FIG. 3 is a front sectional view of the rotating drum. As shown in FIG. 3, the rotary drum 2 is rotated by a rotary drive mechanism 20 including a motor 201, a speed reducer 202, and a chain 203. Here, when the discharge unit 5 is viewed from the input unit 4 into which the organic waste to be processed 50 is input, the rotation is performed when the rotation direction of the rotary drum 2 is counterclockwise as indicated by an arrow in FIG. The rotation direction of the drum 2 is defined as normal rotation.

In FIG. 1, when the processing target 50 is input by opening the normally closed input port 11 on the upper side of the input unit 4, the processing target 50 falls and collides with the receiving plate 12, temporarily. Stay on. Thereafter, it is scraped up by the scraping blade 6 and simultaneously transferred in the direction of the discharge unit 5. In FIG. 3, the state of movement of the processing object 50 in the rotation direction can be seen. It can be seen that the processing object 50 inside the rotating drum 2 is scraped up to the right in the drawing by the scraping blade 6 with the forward rotation of the rotating drum 2, and is in a biased position rather than the center.

When the processing object 50 reaches a certain height by the rotation of the rotating drum, it falls by gravity near the right side of the rotating drum in the drawing. As a result, the whole amount of the organic waste that is the object to be treated 50 is always uniformly stirred, and the portion that has been inside so far comes out and comes into contact with air. In this way, the aerobic fermentation of the organic waste that is the object to be treated 50 proceeds in the vicinity of the charging unit 4 of the rotary drum 2 and finally is converted into water vapor and carbon dioxide gas, and is transferred in the direction of the discharge unit 5. Therefore, it moves to the drying process of the remaining water.

FIG. 4 is a diagram for explaining the operation of the scraping blade 6 and the stirring blade 7 in detail. FIG. 4 is a view of a certain moment when only the blades labeled with the scraping blade 6f and the stirring blade 7f in FIG. 3 at the center of the upper and lower portions of the rotating drum are viewed horizontally through the body. It shows the situation.

As shown in FIG. 4A, the blade surface of the scraping blade 6f is inclined by an angle of attack α with respect to the horizontal, where α is designed in a range of 45 degrees plus or minus 45 degrees. . Here, the angle of attack is an angle measured counterclockwise with respect to the horizontal direction.

The scraping blade 6f moves upward at a speed E by the rotation of the rotating drum, and the processing target 50 loaded on the blade surface and scraped up is in the gravity and surroundings and is not stacked on the blade surface. It is pushed and moved in the direction of the discharge side (left direction in the figure) by the downward force dragged by. Also, since the tip side of the blade gradually tilts downward, when it reaches a certain height, it slides down from the blade surface toward the discharge side and the center of the rotating drum.

As shown in FIG. 4 (b), the processing target 50 that has fallen down due to gravity collides with the stirring blade 7f located below, reverses, is crushed, and further falls down. The stirring blade 7 is inclined by an angle of attack β, where β is designed in a range of 135 degrees plus or minus 45 degrees, that is, inclined in the direction of the charging portion (right direction in the figure), It is returned to the direction of the input part. The amount of movement in the left-right direction at this time is smaller in the amount of backward movement Lr in the right direction by the stirring blade 7f than in the amount of forward movement Lf in the left direction by the scraping blade 6f.

FIG. 5 is an explanatory diagram showing a transfer state of a processing target. FIG. 5 (a) shows the transfer state in the case where there are only the scraping blades as a comparison object, and FIG. 5 (b) shows the transfer state in the case where both the scraping blades and the stirring blades are present in the actual case. ing. In FIG. 5A, the object to be treated is moved up and down while rotating in the direction of the discharge unit by the scraping blades, moves spirally, and is transferred from the input unit side to the discharge unit side.

In FIG. 5 (b), a spiral shape that is moved forward by a scraping blade and moved up and down while rotating, and is slightly returned to the input direction by a stirring blade when moving downward, and is crushed as schematically indicated by an arrow. Moved to the discharge side from the input side. At this time, as apparent from a comparison between FIG. 5A and FIG. 5B, the amount of movement in the discharge direction per rotation in the case of FIG. 5B is the case of FIG. 5A. Smaller than.

If the processing target is transferred quickly toward the discharge section as shown in FIG. 5A, the time remaining in the fermenter is short, and the fermentation and drying are not performed sufficiently and the discharge section accumulates. With this, normal fermentative drying capacity cannot be exhibited. In order to exert normal fermentation and drying treatment capacity, it is necessary to take a sufficiently long time to transfer slowly and stay in the fermenter as shown in FIG. 5 (b).

In addition to the angle of attack α and β of the scraping blade 6f and the stirring blade 7f shown in FIG. 4, if the design of the blade area, the number of blade arrangements, etc. is changed by design, the discharge section per number of rotations of the rotating drum can be obtained. The forward transfer amount to go can be changed. That is, it is possible to determine the optimum fermentation drying treatment time that remains in the fermenter according to the type and properties of the treatment target.

Below, the incidental apparatus of the fermentation drying processing apparatus 1 is demonstrated sequentially. First, as shown in the side view of the fermentation and drying treatment apparatus in FIG. 1, the cutting mechanism 13 is installed obliquely at the tip through the wall of the discharge unit 5. FIG. 6 shows a conceptual diagram of the clipping mechanism. The cut-out mechanism 13 takes out the fermented residue that has been processed from the fermenting and drying treatment tank via the discharge unit 5. The processed residue is conveyed upward from the bottom of the discharge unit 5 by a known screw conveyor 131 and dropped onto a hopper 132 connected to the screw conveyor 131.

When the hopper 132 is filled with processing residue, the cutting gate 133 which is present at the bottom of the hopper 132 and is normally closed to keep airtight is opened as appropriate, and the processing residue is taken out to the outside. FIG. 6B is a front perspective view of the screw conveyor 131. As shown here, the screw conveyor 131 is a twin screw type, and is suitable for transporting powdery substances, papasa material having a low water content, and fermentation treatment residue having an ultra-high viscosity.

The cutting machine 13 may be manually operated as appropriate, but a level detection device (not shown) is installed at a height near the middle of the discharge unit 5 to detect that the processing residue has accumulated in the discharge unit 5, You can also drive automatically.

Next, a hot air generator is demonstrated. It is necessary to keep the inside of the fermentation drying treatment tank at a temperature at which the fermentation microorganisms work efficiently. For this purpose, a blower and a hot air generator are provided, and the outside air can be heated and sent to a fermentation drying treatment tank to control the internal temperature. The hot air generator 15 shown in FIG. 1 generates hot air to be fed into the fermentation drying treatment tank in order to raise and maintain the temperature inside the fermentation drying treatment tank from room temperature to a temperature suitable for the activity of the fermentation bacteria.

An electric heater or fuel burner is provided as a heat source. The hot air supplied from the air inlet 151 and heated to the hot air outlet 152 is sent to the discharge section of the fermentation drying treatment tank. The temperature is measured by a temperature detection device (not shown) installed inside the rotary drum 2 which is a fermentation drying treatment tank, and the heating amount of the hot air generating device or the flow rate of the suction blower 18 is controlled by a known method. Inside temperature can be controlled.

In the fermenting and drying treatment tank into which fresh air is sent, aerobic fermentation is flourished by air at a position near the input unit 4, and in the discharge unit 5, the processing residue after fermentation is dried by dry air.

In the fermentation process, a humidity adjusting agent / fermenting bacteria support material made of wood chips is introduced in advance. This wood chip is premixed with fermenting bacteria so that it also serves as a material for supporting the fermenting bacteria. Wood chips can be used without being replenished over a long period of time because they are difficult to ferment and disappear even by fermenting bacteria.

Next, since odor is generated with the fermentation process, it will be described that the odor is prevented from being emitted to the outside by the deodorizing device. An exhaust gas outlet 191 is installed at a position where it is difficult to suck dust on the back side of the receiving plate 12 below the input portion 4 shown in FIG. 1 and connected to the exhaust gas pipe 19. The exhaust gas is guided to a deodorizing device by a suction blower 18 having a variable flow rate.

FIG. 7 shows a conceptual diagram of a photocatalytic deodorization apparatus. The arrows in the figure indicate the distribution route of the exhaust gas. In the photocatalyst type deodorizing device 17, a photocatalyst layer 171 coated with titanium oxide or the like is disposed on the surface of the exhaust gas passage having a reciprocating structure following the exhaust gas inlet 173. An ultraviolet lamp 172 is disposed in the exhaust gas distribution path. The exhaust gas comes into contact with the photocatalyst layer 171 when passing through the exhaust gas flow path. In FIG. 7, only one photocatalyst layer 171 and one ultraviolet lamp 172 are labeled to avoid the complexity of the drawing.

Titanium oxide, which is a photocatalyst, has the property of reacting with water as a catalyst to generate active oxygen species when it receives light of a short wavelength. It is known that reactive oxygen species have a very strong oxidizing power and exhibit a decomposing action on organic matter and bacteria. It is possible to decompose various compounds that are components of odor generated by fermentation treatment of organic waste. Exhaust gas generated by fermentation treatment of organic waste contains a large amount of water vapor, which is convenient for causing a decomposition reaction with titanium oxide.

Moreover, another system can be used as a deodorizing apparatus. FIG. 8 is a conceptual diagram of a thermal catalytic deodorization apparatus. The arrows in the figure indicate the distribution route of the exhaust gas. The thermal catalyst type deodorization device 16 includes a heat exchanger 163, an air heater 162, and a thermal catalyst honeycomb 161.

The exhaust gas that has entered from the exhaust gas inlet 164 is preheated by a jacket-type heat exchanger 163 through which high-temperature exhaust gas after deodorization passes, and further heated to an appropriate temperature for the reaction by the air heater 162, and the thermal catalyst honeycomb 261. By passing through, the organic components that are the source of odor are decomposed. Since the activity of the thermal catalyst increases at an appropriate temperature, the exhaust gas whose temperature has been increased to about 60 ° C. by the fermentation process can be directly sent from the fermentation drying tank, so that there is an advantage that less heating by the air heater 162 is required.

FIG. 9 is a view showing the hermetic seal 21. When air is blown into the fermentation / drying treatment tank so as to have a positive pressure, the gap between the rotary drum 2 and the charging unit 4 and the discharging unit 5 must have an airtight seal structure in order to prevent leakage of exhaust gas.

FIG. 9A shows the case of the discharge unit 5. The same applies to the input unit 4. If the pressure is positive, the airtight seal 21 must be made as shown here. Since the diameter of the rotary drum 2 is large, the price of the airtight seal 21 is high, and maintenance is troublesome. As shown in Fig. 1, if the exhaust gas is drawn out from the fermentation drying treatment tank using a suction blower and the inside of the fermentation drying treatment tank is set to a negative pressure, a simple seal as shown in Fig. 9 (b) can be achieved. Parts cost and maintenance work can be reduced.

The hot air generating device and the deodorizing device described above can be structured to be attached to the fermentation drying treatment tank, or they can be connected by individually sealed air pipes as independent structures.

As described in the above embodiments, according to the present invention, in a fermentation and drying treatment tank equipped with a scraping blade and a stirring blade, a transfer rate suitable for fermentation treatment and drying treatment, that is, a treatment time is realized, which is efficient. Fermentation drying processing equipment can be provided, and fermentation residue that can be used as compost can be provided.

DESCRIPTION OF SYMBOLS 1 Fermentation drying processing apparatus 2 Rotary drum 21 Airtight seal 22 Seal holder 23 Seal holder 24 Simple seal 3 Fixed rotating shaft 4 Input part 5 Discharge part 6, 6f Scooping blade 7, 7f Stirring blade 8, Roller 9, Support member 10 Base 11 Input Mouth 12 Receiving plate 13 Cutting mechanism 131 Screw conveyor 132 Hopper 133 Cutting gate 15 Hot air generator 151 Air inlet 152 Hot air outlet 16 Thermocatalytic deodorizer 161 Thermal catalyst honeycomb 162 Air heater 163 Heat exchanger 164 Exhaust gas inlet 165 Exhaust gas outlet 17 Photocatalyst type deodorizer 171 Photocatalyst layer 171
172 Ultraviolet lamp 173 Exhaust gas inlet 174 Exhaust gas outlet 18 Suction blower 19 Exhaust gas piping 191 Exhaust gas outlet 20 Rotation drive mechanism 201 Motor 202 Reducer 203 Chain 50 Process target

Claims (5)

An apparatus mainly composed of a fermentation drying treatment tank for fermenting and drying organic waste,
The fermentation drying treatment tank is a horizontally long cylindrical rotating drum type, and includes a rotating drum and a fixed rotating shaft that is horizontally mounted along the central axis of the cylindrical shape,
While rotating the rotating drum, air is sent into the fermentation drying treatment tank, fermented while transferring the treatment target from the input part to the discharge part of the fermentation drying treatment tank, and dried.
A number of scraping blades arranged on the inner surface of the rotating drum are provided, and when the rotating drum is rotated, the scraping blades scrape the object to be treated and transfer it to the discharge unit,
It has a large number of stirring blades arranged on the fixed rotating shaft, and the stirring blades transport the processing object falling after being scraped up when rotating the rotary drum in the direction of the charging unit, and the distance of the transfer is Smaller than the distance the scraping wing moves in the direction of the discharge part,
In the passage through which the air sent to the fermentation drying tank and the exhaust gas generated by fermentation are discharged,
An organic waste treatment apparatus comprising a deodorizing apparatus equipped with a thermal catalyst or a photocatalyst. The organic waste treatment apparatus according to claim 1,
The scraping wing has an angle of attack of 45 degrees plus or minus 45 degrees,
The organic waste treatment apparatus, wherein the stirring blade has an angle of attack of 135 degrees plus or minus 45 degrees. The organic waste treatment apparatus according to claim 1,
A variable flow suction blower for sucking air from the fermentation drying treatment tank, a hot air generator for heating the air, a pipe for passing the air, and a temperature or / and pressure in the fermentation drying treatment tank are detected. An organic waste treatment apparatus comprising a measuring instrument and capable of controlling temperature and / or pressure in the fermentation drying treatment tank.
The organic waste treatment apparatus according to claim 1,
Put the humidity regulator and fermenting bacteria support material in the fermentation drying treatment tank,
An organic waste treatment apparatus characterized by performing a fermentation treatment. The organic waste treatment apparatus according to claim 1,
Maintaining the pressure in the fermentation and drying tank slightly lower than atmospheric pressure,
An organic waste treatment apparatus characterized by preventing exhaust gas from leaking into the atmosphere.