JP2018171605A - Soil deodorization organic waste treatment equipment without rotary axis - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide laterally-long cylindrical rotary drum type treatment equipment which requires only short treatment time in fermentation drying treatment of an organic waste, which has a simplified structure, which can be produced at low production cost, and which can be maintained easily.SOLUTION: A laterally-long cylindrical rotary drum type fermentation drying treatment tank which is installed horizontally is used in fermentation drying treatment, and there are provided plural rows of scraping blades which are arranged on an inside surface of a trunk of a rotary drum. When a rotary drum rotates in normal rotation, a treatment object is reversed and transferred from an input part to a direction of a discharge part, and when the rotary drum rotates in reverse rotation, the treatment object is reversed and reversely transferred from the discharge part to a direction of the input part, by combination of transfer in a normal direction in a long time and transfer in a reverse direction in a short time, transfer in the direction of the discharge part is made to become slowly, so that, aerobic fermentation and drying following to the aerobic fermentation can be performed sufficiently. Deodorization of exhaust gas is performed by using a soil deodorization method.SELECTED DRAWING: 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
A device for treating organic waste, fermenting and drying the organic waste, comprising a fermentation drying treatment tank of a horizontally long cylindrical rotating drum type,
While rotating a rotating drum that is a part of the fermentation drying treatment tank and sending air into the fermentation drying treatment tank, performing a fermentation drying treatment while transferring the treatment target from the input unit to the discharge unit,
A number of scraping blades arranged on the inner surface of the rotating drum are provided, and when the rotating drum rotates forward, the processing target is scraped up and transferred to the discharge unit, and when rotating reversely, the processing target is scraped up. Along with the direction of the feeding section,
The organic waste treatment apparatus is characterized in that the accumulated distance transferred in the direction of the discharge section is larger than the accumulated distance transferred in the direction of the input section within the time for processing the treatment target.

Furthermore, the present invention is an organic waste treatment apparatus characterized in that a soil deodorization device is disposed in a passage through which air sent to the fermentation drying treatment tank and exhaust gas generated by fermentation are discharged.

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 be lifted and transferred in the discharge direction.

When the rotating drum is rotated in the reverse direction, the organic scrap is scraped up by the same scraping blade, and on the contrary, it is transported in the direction of the charging unit. Therefore, the processing target in the fermentation drying treatment tank is always transferred in the front-rear direction, and the whole is uniformly stirred.

If the scraper blades always send the object to be processed in the direction of the discharge part according to the rotation of the rotating drum, it will reach the discharge part within a short period of time, and it will not be able to be fermented or dried sufficiently. Since the space of the discharge part is filled in a tenacious state, the normal processing function cannot be performed. Therefore, the inventor has found that if the transfer direction of the object to be treated is appropriately reversed, the aeration can be continuously performed without stopping inversion and stirring, and fermentation or drying can be performed to prevent an abnormal state. .

In other words, the rotating direction of the rotating drum is appropriately reversed, and the organic waste to be treated is transported by a long distance in the direction of the discharge section and a short distance in the direction of the input section by the scraping blade installed on the rotating drum. As a result, the organic waste is inverted and agitated in the fermentation / drying treatment tank, and is transported back and forth while being transported slowly in the discharge direction.

The overall transfer speed can be adjusted according to the structure of the size, arrangement and angle of the scraper blades, including the setting of the time ratio between forward rotation and reverse rotation. In consideration of the progress time of the fermentation treatment and the drying treatment, it can be designed to be the most suitable 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 that is always a problem in the fermentation and drying treatment of organic waste by additionally installing a deodorizing device using a known soil. The deodorization equipment using soil is an adsorbed and dissolved in the moisture of the soil by cooling the exhaust gas coming out from the fermentation drying treatment tank and then venting it to the soil, so that the odor passes through and contacts the soil. After that, the odor component is decomposed by decomposition by microorganisms living in the soil.

Rather than venting into the soil, a deodorizing tank is installed on the ground, and a plurality of cooling layers using gravel and a layer of carbide adsorbing odors are stacked in the deodorizing tank, with the carbide layer as the center. It can also be deodorized by impregnating wood acetic acid solution and performing the same function as soil.

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 according to the present invention, a transfer rate suitable for fermentation treatment and drying treatment, that is, treatment time can be realized, and an efficient fermentation and drying treatment apparatus can be provided.

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 Illustration of action of scraping wing Explanatory drawing showing the transfer status of the processing target Conceptual diagram of cutting mechanism Conceptual diagram of soil deodorization equipment Schematic diagram of a deodorizing tank similar to a deodorizing device using soil Conceptual diagram of hermetic seal of rotating drum Rotation direction time chart

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 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 a roller 8 and can be freely rotated around a cylindrical shaft by a rotary drive mechanism (not shown). The input unit 4 and the discharge unit 5 are fixed to the base 10 by 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.

The scraping blade 6f and the scraping blade 6r are positioned at the center in the vertical direction of the rotation of the rotary drum and are linear because they are parallel to the viewing direction. The scraping blade 6f and the scraping blade 6r are one of the same series, and the center of the rotating drum 2 is different depending on whether the scraping blade 6f or the scraping blade 6r is on the wall near the viewpoint and the wall far away from the viewpoint. Inverted with respect to the axis, the angle of the blade surface appears symmetrical. The state is also shown in FIG.

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 in detail. FIG. 4 shows a certain moment when only the scraping wings denoted by reference numerals 6f and 6r in FIGS. 2 and 3 at the center position in the vertical direction of the rotating drum 2 are viewed horizontally through the trunk. It shows the situation. The scraping wing 6f in FIG. 4 (a) and the scraping wing 6r in FIG. 4 (b) are one of a number of the same scraping wings. However, the scraping wing 6f in FIG. In this case, the inclination of the wing surface appears to be opposite.

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.

In FIG. 4 (a), the scraping blade 6f is installed inclined at an angle α so that the direction of the discharge part (left in the figure) is lowered (measured clockwise). Along with the rotation of the rotating drum, the scraping blade 6f scoops up the object to be processed from the lower side of the tank and lifts it to the upper side of the tank at the rising speed E. As the scraping blade 6f approaches the upper side of the rotating drum, the blade surface gradually inclines and the tip portion is lowered, so that the lifted processing object 50 slides down to the lower left in the figure.

At this time, the transfer amount of the processing object in the direction of the discharge unit is Lf with respect to the movement amount Ld along the blade surface. The scraping blade 6r shown in FIG. 4 (b) has a symmetrical structure and action with respect to FIG. 4 (a) when the rotation direction of the rotary drum is reversed. That is, for the same rotation amount of the rotary drum, the transfer distance in the direction of the discharge portion by the scraping blade 6f and the transfer distance in the direction of the input portion by the scraping blade 6r are the same.

FIG. 5 is a conceptual diagram showing the overall movement of the processing target. A curve described in the body of the rotating drum 2 shows a certain movement representing the processing target 50. FIG. 5A shows the case where the rotary drum 2 is rotated only in the reverse direction and the processing object is transferred only in the direction of the discharge unit (left in the drawing) by the scraping blade 6.

FIG. 5B shows the case where the rotating drum rotates in reverse, as a solid line, and the case where it rotates in the forward direction, as a broken line. When the rotary drum 2 rotates in the reverse direction, the scraping blade moves the object to be treated in the direction of the discharge part (left in the figure) in a spiral curve, and transfers it twice. It can be seen that it is transporting one rotation in the direction (right in the figure).

FIG. 10 shows a time chart of the rotation direction at this time. From FIG. 10, it can be seen that the reverse rotation (Reverse) is repeated for t1 hours, followed by reverse rotation (Forward) for t2 hours, and then the rest (Stop) for t3 hours. In this example, t1: t2 is 2: 1. T3 is considerably long in this example, but may be zero.

As a result, a long transfer in the direction of the discharge part to be treated (left in the figure) and a short transfer in the direction of the input part (right in the figure) are alternately performed, and the overall direction toward the slow outlet It has been transferred. The rotation direction is controlled by a rotation control device (not shown). Such a rotation control device can be easily realized by a combination of, for example, a three-phase AC motor, a contactor, a timer, or a sequencer.

The overall transfer speed of the processing object 50 can be arbitrarily changed at a forward / reverse rotation time ratio t1: t2. Alternatively, it can be determined by the design of the angle and number and position of the scraper blades 6. Since the transfer speed, that is, the time for staying in the tank, is determined according to the physical properties such as the type of processing object and moisture content, the optimal processing time for fermentation can be selected.

In addition to the forward / reverse rotation time ratio, even if the attack angle α of the scraping blade 6f, the blade area, the number of blade arrangements, etc. shown in FIG. The amount of transfer toward the discharge section 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.

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).

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 through the left wall of the discharge unit 5 at the tip. 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.

Although the cutting mechanism 13 may be manually operated as appropriate, 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.

The hot air generator 15 includes an electric heater or a fuel burner as a heat source (not shown) 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 the soil deodorization apparatus. The soil deodorizing device 16 includes a ventilation block 161, an inverted U-shaped block 163, a cobblestone layer 164, a gravel layer 165, and a soil covering layer 166. As can be seen from FIG. 7B, the ventilation blocks 161 are laid in two rows in the ground, and the inverted U-shaped blocks 163 are stacked thereon, and an exhaust gas passage is formed thereunder. Exhaust gas sent by the suction blower 18 via the exhaust gas pipe 19 is discharged into the surrounding ground through a vent hole 162 opened in the vent block 161.

The exhaust gas leaving the vent 162 and released into the cobblestone layer 164 is then cooled through the gravel layer 165. The exhaust gas further passes through the soil covering layer 166, is deodorized by the microorganisms therein, and is then released into the atmosphere. Since the exhaust gas is cooled by the boulder layer 164 and the gravel layer 165, microorganisms are not killed in the soil.

The conceptual diagram of the soil deodorizing tank similar to the deodorizing apparatus which uses soil for FIG. 8 is shown. This is not to embed large-scale facilities in the soil as described above, but to the gravel layer 174 in which gravel or cobblestone or the like is deposited as a first layer from below in the housing 171, and the second layer thereon. A soil deodorizing tank 17 having a gravel layer 176 on which a carbonized particle layer 175 such as bark charcoal and rice bran charcoal is deposited and a cobblestone, gravel and the like is again deposited thereon as a third layer is installed on the ground. Deodorization is possible even if exhaust gas is passed through.

In this case, deodorization is carried out by spraying a wood acetic acid solution on the second layer, or further on the first layer and the third layer, using a watering pipe 177 installed in the housing 171.

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 / drying treatment tank composed of a rotating drum equipped with a scraping blade, a transfer speed suitable for fermentation treatment and drying treatment, that is, treatment time is realized, which is efficient. A fermentation and drying treatment apparatus can be provided, and fermentation residual materials that can be used as compost can be provided.

DESCRIPTION OF SYMBOLS 1 Fermentation drying processing apparatus 2 Rotating drum 21 Airtight seal 22 Seal presser 23 Seal presser 24 Simple seal 4 Input part 5 Discharge part 6 Scooping blade 6f, 6r Scooping blade 8 Roller 9 Supporting member 10 Base 11 Input port 12 Base plate 13 Cutting mechanism 131 Screw conveyor 132 Hopper 133 Cutting gate 15 Hot air generator 151 Air inlet 152 Hot air outlet 16 Soil deodorizer 161 Ventilation block 162 Vent hole 163 Inverted U-shaped block 164 Cobblestone layer 165 Gravel layer 166 Cover soil layer 17 Soil deodorization tank 171 Case 172 Exhaust gas inlet 173 Exhaust gas outlet 174 Gravel layer 175 Carbonized particle layer 176 Gravel layer 177 Sprinkling pipe 18 Suction blower 19 Exhaust gas pipe 191 Exhaust gas outlet 20 Rotation drive mechanism 201 Motor 202 Reducer 203 Chain 50 Process target

Claims (5)

A device for treating organic waste, fermenting and drying the organic waste, comprising a fermentation drying treatment tank of a horizontally long cylindrical rotating drum type,
While rotating a rotating drum that is a part of the fermentation drying treatment tank and sending air into the fermentation drying treatment tank, performing a fermentation drying treatment while transferring the treatment target from the input unit to the discharge unit,
A plurality of scraping blades arranged on the inner surface of the rotating drum are provided. When the rotating drum rotates forward, the processing target is scraped up and transferred in the direction of the discharge unit. Scoop up and move in the direction of the input part,
In the time for processing the processing object, the total of the distance transferred in the direction of the discharge unit is larger than the total of the distance transferred in the direction of the input unit,
Moreover, the organic waste processing apparatus characterized by having arrange | positioned the soil deodorizing apparatus or the soil deodorizing tank in the channel | path where the air sent to this fermentation drying processing tank and the waste gas generated by fermentation are discharged | emitted. The organic waste treatment apparatus according to claim 1,
The organic waste treatment apparatus according to claim 1, wherein the scraping blade has an angle of attack of 45 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.