JP2002333274A - Hot air type drying apparatus and method for treating garbage using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance a treating efficiency of a hot air type drying apparatus and to reduce a heat loss. SOLUTION: The hot air type drying apparatus comprises a treating container 2 in which an interior is partitioned by a vertical wall 7 into a front chamber 2a and a rear chamber 2b and a communicating port 7a is formed at the wall 7 to communicate the chamber 2a with the chamber 2b and a filling layer J of a hard particulate material (r) is formed in each of the chambers 2a and 2b so that the port 7a is submerged in the layer J, an agitating means 9 provided to agitate the layers J of the chambers 2a and 2b, a treated material supply port 13 for throwing a material G to be treated in the chamber 2a, a hot air supply port 12 for supplying drying hot air N to the chamber 2a and a hot air exhaust port 14 for exhausting chamber passing hot air N' together with a powder-like dry treated material A accompanied with the hot air N' from the chamber 2b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot-air drying apparatus and a garbage disposal method using the same, and more particularly, to a hot-air drying method for drying a hydrated or liquid processed product with hot air to form a finely dried product. TECHNICAL FIELD The present invention relates to a drying apparatus and a method for treating garbage using the same.

[0002]

2. Description of the Related Art Conventionally, as a hot-air drying apparatus as described above, as shown in FIG.
While stirring the processed material G charged into the
The hot air N for drying is supplied from the hot air supply port 12 to the processing container 2 to dry the input processed material G, and the fine-grained dried processed material Z generated by the drying is supplied to the processing container 2 by the feed function of the rotary blade 9. There was a type which was taken out from the bottom outlet 14 '.

Further, as shown in FIG. 9, the processing container 2 is a rotating container having an inclined posture in which a spiral blade 9 ′ is provided on the inner peripheral surface.
While the processing object G charged into the processing container 2 from the processing object input port 13 is stirred by the rotation of the processing container 2, hot air N for drying is supplied to the processing container 2 from the hot air supply port 12 to dry the input processing object G. There is also a type in which the fine-grained dried product Z generated by the drying is removed from the outlet 14 'at the bottom of the container by moving in the container by its own weight.

[0004]

However, any of the above types has the following problems (a) to (d).

(A) Hot air N and processed material G in the processing vessel 2
The efficiency of heat exchange with the hot air N is low, and the supplied hot air N is discharged from the processing vessel 2 in a high temperature state without being efficiently consumed in drying the processed material G (in short, in a state in which the inside of the vessel is simply rubbed. Therefore, the drying efficiency of the processed material G is low, the heat loss is large, and the running cost is increased.

(B) A large lump or insufficiently dried one is easily mixed with the dried product Z taken out from the outlet 14 ', and the uniformity of the taken out dried product Z is low. Post-processing is necessary for the use of the dried processed material Z, and the load of the subsequent processing is large.

(C) The processing object G easily adheres and accumulates on the inner surface of the processing container 2 in a dry state. Therefore, the inside of the processing container 2 must be frequently cleaned, and the maintenance burden is large.

(D) When the liquid processing material G is charged into the high-temperature processing vessel 2, a bumping phenomenon is likely to occur, and in this respect, the operation stability of the apparatus is low.

In view of these circumstances, it is a main object of the present invention to effectively solve the above-mentioned problems by a rational processing configuration, and to use the processing configuration to reduce the cost and space. An advantage of the present invention is that efficient and efficient garbage disposal can be performed in a small number of states.

[0010]

Means for Solving the Problems [1] The invention according to claim 1 relates to a hot-air drying apparatus, which is characterized in that the inside of a processing vessel is divided into a front chamber and a rear chamber by a vertical wall, and both of them are separated. A communication port for bringing the chamber into communication is formed in the vertical wall, a packed layer of hard particulate matter is formed in each of the front chamber and the rear chamber, and the communication port is immersed in the filled layer. In addition, a stirring means for stirring the granular material-filled layers in both chambers is provided, a processing material input port for charging a processing material into the front chamber, a hot air supply port for supplying hot air for drying to the front chamber, and indoor passage. A hot-air outlet for discharging hot air from the rear chamber together with a powdery dried product accompanying the hot air is provided.

In other words, according to this drying apparatus, since the hot air passes through the packed bed of the hard granular material in the front chamber and the rear chamber in the processing vessel, the communication port between the front chamber and the rear chamber is formed. Since the hot air is reliably passed through the packed layer in a state of being immersed in the packed layer (in other words, the hot air is surely prevented from slipping through), the hard granular material forming the packed layer can be efficiently passed with the hot air. Heat can be exchanged for efficient heating, and the charged material is dispersed in the packed bed by stirring the packed bed by the stirring means, and the dispersed product is mixed with the hard granular material heated as described above. Heating can be efficiently performed by the contact of the above, and by these, the efficiency of heat exchange between the hot air and the processing object in the processing container can be effectively increased as compared with the above-described conventional apparatus. Effective drying process efficiency To increase, also, it can be made inexpensive running cost by reducing the heat loss effectively.

In addition, while the treated material in the drying process is crushed in the packed bed by contact with the hard granular material due to the stirring of the packed bed, the treated material in the drying process is conveyed by passing hot air into the front chamber in the packed bed. From the room to the rear room, and
As the processing proceeds, the powdery dry processed material which has been sufficiently dried and sufficiently pulverized to be able to ride on hot air is discharged from the rear chamber in a wind-selective manner accompanied by the hot air. As compared with the above, the degree of homogeneity of the dried product taken out can be effectively increased, and the burden of post-processing required in using the obtained dried product can be effectively reduced.

Further, it is possible to effectively prevent the processed material from adhering and depositing on the inner surface of the processing container in a dry state by contact of the hard granular material with the inner surface of the container by stirring the packed layer. In the case of, the occurrence of a sudden boiling phenomenon can be effectively prevented by the permeation of the charged liquid processing material into the packed bed, and in these respects, the maintenance burden can be reduced as compared with the above-described conventional apparatus, and the operation of the apparatus can be reduced. Can also be improved in stability.

Incidentally, the above-mentioned (a) in the conventional device
~ To solve the problem of (d), as another type of device,
As shown in FIG. 7, a packed bed J of the hard granular material r is accommodated in a vertical processing vessel 2, and the packed bed J is stirred by a stirring means 9 and a porous layer provided at the bottom of the vessel 2. By supplying the processing object G into the container from the processing object input port 13 while supplying the hot air N to the inside of the container from the hot air supply port 12 ′, the input processing object G is dispersed in the packed bed J. The powdery dried product Z is discharged while being crushed by contact with the hard granular material r while being discharged, and discharged out of the container along with the hot air N ′ discharged from the hot air discharge port 14.
Is separated from the discharged hot air N ′ by a suitable collecting means 4.

However, in this apparatus, since the bottom of the processing vessel 2 is made to be a porous upward hot air supply port 12 ', the processing material G
Is liquid, there is a risk that the liquid processing material G charged into the container leaks from the porous hot air supply port 12 'at the bottom of the container, and the weight of the packed layer J is reduced to the porous hot air supply port 12'. Therefore, there is a problem that the porous hot air supply port 12 'is easily damaged when the apparatus is used while stirring the packed bed J.

On the other hand, in the drying device according to the first aspect of the present invention, the communication port between the front chamber and the rear chamber is immersed in the packed bed to ensure the ventilation of hot air to the packed bed. Therefore, it is not necessary to make the hot air supply port upward in a porous manner and form it at the bottom of the processing container as in the above-mentioned another type of apparatus. The problem of early damage to the mouth can be avoided, and in these respects, the drying device can be more excellent than the other type of device.

According to the first aspect of the present invention, in order to separate and collect the powdery dried product discharged from the hot air discharge port along with the discharged hot air from the discharged hot air, A method in which the treated material is collected by colliding with a collision member having an appropriate structure such as a staggered arrangement, a method in which the material is collected by a filter having an appropriate structure, or a method in which the discharged hot air is swirled and collected by centrifugation. And various methods can be adopted.

Further, the hot-air drying device according to claim 1 comprises:
It can be used for drying various hydrated or liquid treated products such as drying of garbage and garbage decomposition liquid, drying of sludge and sewage solids, and drying and regeneration of paint in waste solvent. .

[2] The second aspect of the present invention specifies a preferred embodiment for carrying out the first aspect of the present invention. The feature of the second aspect is that the inside of the processing container is formed in a horizontal cylindrical shape. The front wall and the rear chamber are formed by the vertical wall in a posture orthogonal to the center axis of the horizontal cylindrical shape, and the inner peripheral surface of the processing vessel is formed around the center axis of the cylindrical shape as the stirring means. Rotating blades rotating along the front chamber and the rear chamber, respectively.

In other words, by adopting this apparatus configuration, the rotating blades are rotated around the central axis of the cylindrical shape along the inner peripheral surface of the container in the laterally cylindrical container, thereby forming the hard layer for forming the filling layer. In the form in which the granular material is efficiently convected up and down in the container, and in the form in which the hard granular material does not form a stagnation area in the packed bed in the rotating direction of the rotating blades (the circumferential direction inside the container), The granular material packed bed in the rear chamber can be effectively agitated, and the treated material can be uniformly dispersed throughout the packed bed, and the crushing effect of the treated material due to contact with the hard granular material can also be obtained. Thus, the drying efficiency of the processed product and the homogeneity of the removed dried product can be more effectively improved.

[3] The invention according to claim 3 specifies an embodiment suitable for carrying out the invention according to claim 2, and is characterized in that the communication port is formed by rotating the communication port below the vertical wall. The point is that it is formed at a position deviated to the lower side in the rotation direction of the blade.

In other words, as described above, when the rotating blades are rotated along the inner peripheral surface of the container around the central axis of the cylindrical shape inside the container having a horizontal cylindrical shape, the upper surface of the packed layer in the container becomes the rotating blade. The upstroke side is high and the downstroke side of the rotary blade is low.

On the other hand, if the communication port is formed at the lower part of the vertical wall at a position deviated to the lower side in the rotation direction of the rotary blade (ie, the upward stroke side of the rotary blade) as described above, the filling by the rotation of the rotary blade is performed. Due to the inclination of the upper surface of the layer, the end of the communication port on the down stroke side of the rotating blades is exposed to the space inside the container on the packed layer, and hot air from the front room to the rear room may slip through. Thus, it is possible to effectively prevent the drying process efficiency and effectively reduce the heat loss by adopting the apparatus configuration according to the second aspect of the present invention. it can.

[4] The invention according to claim 4 is the invention according to claims 1 to
The present invention specifies an embodiment suitable for carrying out the invention according to any one of the above items 3, and is characterized in that a powdery dried product accompanying the hot air discharged from the hot air outlet is separated from the discharged hot air. There is provided a collecting means for collecting, and a hot air return path for returning a part of the discharged hot air after separation of the dried product by the collecting means to the rear chamber by a fan is provided.

In other words, with this apparatus configuration, the amount of hot air discharged from the rear chamber through the hot air outlet is smaller than the amount of hot air supplied from the hot air supply port to the front chamber through the hot air return path to the hot air. Air volume (ie, circulating air volume)
The hot air returned to the rear chamber through the hot air return path can also promote the soaring of the powdery dry processed material in the rear chamber. To reduce the amount of air required for drying the processed product, but also to enhance the discharge function from the rear chamber of the powdery dry processed product accompanying the discharged hot air, thereby further improving the drying processing efficiency. Can be.

[5] The invention according to claim 5 is the first invention.
The present invention relates to a method for treating garbage using the hot-air drying apparatus according to any one of the items 4, wherein the garbage is introduced into the treatment container from the treated material inlet, and the inputted garbage is subjected to the treatment. A decomposing step of decomposing by aerobic microorganisms inside the container, and drying of the decomposed garbage in the decomposing step into a powdery dried product by performing a hot air supply from the hot air supply port and a packed bed stirring by the stirring means. And a process.

In other words, if the garbage is decomposed by aerobic microorganisms and then subjected to hot-air drying, the amount of dried matter after the treatment can be made extremely small as compared with the amount of garbage before the treatment. , The generation of offensive odor can be reduced throughout the entire process, but according to the above-described processing method,
The garbage is decomposed by aerobic microorganisms in the processing vessel of the hot-air drying device, and after the decomposition treatment, the decomposed garbage in the processing vessel is made into a powdery dried product by supplying hot air and stirring the packed bed. From, the garbage is decomposed by aerobic microorganisms in a decomposition tank separate from the drying device, and then the decomposed garbage is transferred into the processing container of the drying device and dried,
The number of devices required for the garbage disposal can be reduced to reduce the cost of the device, reduce the space required for the installation of the device, and eliminate the need for the operation of transferring the decomposed garbage.

Further, in the hot-air drying apparatus according to the first to fourth aspects, since the packed layer of the hard granular material exists inside the processing vessel, the decomposition step and the drying step are performed in the processing vessel of the hot-air drying apparatus. The aerobic microorganisms used to decompose garbage can be stably retained in the processing container using the packed bed in the processing container as a dwelling, while taking the form of alternately performing The operation of charging the aerobic microorganisms into the processing container together with the garbage can be eliminated, and according to these methods, according to the above method, efficient garbage disposal by decomposition by the aerobic microorganisms and hot-air drying can be achieved. The operation can be carried out easily with less burden on cost and space and few necessary operations.

In the decomposition step of decomposing the input garbage by aerobic microorganisms inside the processing container, it is desirable to appropriately perform the packed bed stirring by the stirring means to promote the decomposition of the garbage in the container. It is desirable to put the garbage into a treatment container together with an appropriate amount of water in a state of being shredded by an appropriate crushing device in order to promote decomposition.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIG. 1 shows a garbage processing apparatus using a hot-air drying apparatus, 1 is a drying apparatus mainly composed of a processing container 2 having a horizontal cylindrical shape, and 3 is a processing apparatus. Hot air N for drying (for example, heated air at about 150 ° C.) in the container 2
Is a collection device for collecting the powdery dried product Z, which is a processing product.

Numeral 5 is a garbage input device provided with a crushing device 5a. When garbage G is put into the input device 5, the garbage G is shredded by the crushing device 5a and transported in an appropriate amount serving as decomposition water. The water W is charged into the processing vessel 2 through the charging path 6.

As shown in FIGS. 1 and 2, the interior of the processing container 2 having a cylindrical shape in the horizontal direction is partitioned into a front chamber 2a and a rear chamber 2b by a vertical wall 7, and a front chamber 2a and a rear chamber are provided below the vertical wall 7. An arcuate communication port 7a for communicating the second chamber 2b is formed, and each of the front chamber 2a and the rear chamber 2b is filled with a hard granular material r (for example, ceramic particles having a diameter of several mm to several tens of mm). J is accommodated in the filling layer J in a state where the communication port 7a is submerged.

The front chamber 2a and the rear chamber 2b are attached to the rotation shaft 8 disposed on the center axis of the circular processing container 2 so that the rotation phases thereof are different from each other by 180 degrees. And a plurality of pairs of rotating blades 9 rotating along the inner peripheral surface of (i.e., the inner peripheral surfaces of the chambers 2a and 2b) are arranged in the rotational axis center direction with their rotational phases being different from each other.
These rotating blades 9 are used as stirring means,
Of the inner chamber J of the front chamber 2a and the rear chamber 2b by the rotation of
Is agitated. Reference numeral 10 denotes a blade rotation motor connected to the rotation shaft 8 outside the processing container 2.

A hot air supply port 12 for supplying hot air N sent from the hot air generator 3 through the hot air supply path 11 to the front chamber 2a and an injection device 5 through the injection path 6 are provided above the front chamber 2a. A processing material input port 13 for supplying the garbage G to the front room 2a is provided, while a powdery dried product Z accompanied by hot air N 'passing through the room is provided above the rear room 2b.
(Dry processed material) and a hot air discharge port 14 that is discharged from the rear chamber 2b together with the moisture evaporated from the processed material G,
A portion of the discharged hot air N ″ (for example, high-humidity air of about 70 ° C.) after the powdery dried material Z is collected and separated from the hot air outlet 14 through the exhaust path 15 to the collection device 4 and exhausted. The rear chamber 2 through the hot air return path 17 by the feed function of the fan 16
A hot air return port 18 for returning to b is provided.

The rotating blades 9 are inclined with respect to the rotating direction so that a function of sending the granular material r to the rear side of the container with the rotation is generated. Together with the rear chamber 2b as shown in FIG.
Is higher than the upper surface of the filling layer J in the front chamber 2a.

Further, as shown in FIG. 2, the upper surface of the packed layer J in the front chamber 2a and the rear chamber 2b is inclined upward by the rotation of the rotary blade 9, and the downward stroke side of the rotary blade 9 is low. On the other hand, the communication port 7a is formed in the lower part of the vertical wall 7 at a position deviated to the lower side (upward stroke side) in the rotation direction of the rotary blade 9, and thus, the opening area of the communication port 7a is increased. While the communication port 7a is stably kept completely immersed in the filling layer J, thereby preventing the hot air N from slipping through (in other words, passing through).

As shown in FIG. 3, the trapping device 4
5, a gutter-shaped collision member 20 having a U-shaped cross-section and opening in the upstream direction of the hot air flow direction is arranged in an oblique vertical posture and in a staggered manner in a plan view. By passing hot air N ′ discharged from the processing vessel 2 through the apparatus case 19, the dry powder Z accompanying the discharged hot air N ′ collides with the collision member 20 and is discharged. The hot air N 'is separated and collected, and the collected dry powder Z is collected by its own weight into a recovery container 21 attached to the lower portion, while the hot air N "after the associated dried product Z is separated is collected in the upper portion. It is designed to be discharged from the mouth 22.

Reference numeral 23 denotes a control device.
Is a state in which the supply of hot air from the hot air generator 3 and the stirring of the packed bed by the rotating blades 9 are stopped, and an input receiving step of receiving the input of garbage into the processing container 2 and a state in which the supply of hot air from the hot air generator 3 is stopped. A decomposition step of decomposing the input garbage G in the input reception step in the processing container 2 by the aerobic microorganisms remaining in the processing container 2 while stirring the packed bed by the rotating blades 9, and supplying hot air from the hot air generator 3. And a drying step of converting the decomposed garbage (garbage decomposed product) in the decomposition process into a powdery dried product Z by performing the packed bed stirring by the rotating blades 9 in accordance with the time schedule set by the user in this order. Implemented

That is, in this garbage processing apparatus, the aerobic microorganisms (first time) remaining in the processing vessel 2 through the drying step from the previous decomposition step using the granular material packed layer J in the processing vessel 2 of the drying apparatus 1 as a dwelling place. In the decomposition step, the food waste G is put into the processing vessel 2 together with the food waste G), and in each decomposition step, the food waste G is aerobically fermented and decomposed in the processing vessel 2. By stirring J, the decomposition of garbage G is promoted using the packed bed stirring function of the drying device 1.

In the drying step following the decomposition step, the supply of hot air from the hot air generator 3 and the stirring of the packed bed by the rotary blades 9 are carried out, whereby the decomposed garbage G 'in the decomposition step is stirred in the packed bed J. Is dried while accompanied by pulverization in the packed bed J by contact with the hard granular material r, and the packed bed J is transported by hot air N through the decomposed garbage G 'in the drying process.
Gradually move from the front room 2a to the rear room 2b, and
The powdery dried product Z, which has been sufficiently processed and sufficiently dried and sufficiently pulverized so that it can be put on the hot air N ', is discharged from the rear chamber 2b in a wind-selective manner along with the hot air N', Thus, the powdery dried product Z discharged from the processing container 2 is captured and collected by the collection device 4.

[Second Embodiment] FIG. 4 shows an underwater-extinguishing garbage processing apparatus using the same hot-air drying apparatus 1 as shown in the first embodiment. Aeration tank (decomposition tank) decomposed by aerobic microorganisms in the mixed state of 3
Reference numeral 2 denotes a garbage input device for inputting garbage G into the aeration tank 31. When the garbage G is input into the input device 32 and a switch operation is performed, the carrier liquid supply valve V1 is opened and the aeration tank 31 is opened.
A part of the garbage decomposed liquid L (mixture of decomposed garbage and water) is supplied as a carrier liquid L 'to a charging device 32 by a submersible pump 33 through a carrier liquid supply path 34 and charged. The crushing / transporting pump 35 provided in the device 32 is operated, whereby the garbage G is sent to the aeration tank 31 together with the transporting liquid L ′ through the charging path 36 in the crushed state.

Reference numeral 37 denotes a ventilation fan for supplying outside air OA for ventilation to a space above the liquid level in the aeration tank 31 through an air supply passage 38, and reference numeral 39 denotes outside air OA for ventilation by the ventilation fan 37.
IA on the liquid level in the aeration tank 31 with the supply of water
Is an exhaust passage for discharging the gas to the outside.

The same components as those in the first embodiment are denoted by the same reference numerals as those used in the first embodiment.

Reference numeral 40 denotes an aeration / stirring pump provided in the aeration tank 31. As shown in FIGS. 4, 5 and 6, the aeration / stirring pump 40 has an inverted conical shape having a larger diameter toward the upper end. With an inner surface 41s, in an immersion state in a liquid in which the upper cylindrical port 41a is located above the liquid level and the lower cylindrical port 41b is located below the liquid level,
A rotating cylinder 41 for pumping that rotates around the center axis P of the cylinder, and a rotating cylinder 41 that rotates in the same direction as the rotating cylinder 41 in a state of being immersed in the liquid inside the lower end of the rotating cylinder 41 and is applied by the rotation. The liquid supply rotary blade 42 for applying the liquid L to the inner surface 41s of the rotary cylinder 41 by centrifugal force and the liquid L scattered outward from the edge of the upper cylindrical port 41a of the rotary cylinder 41 collide with each other to change the direction of the liquid L. A disc-shaped scattering guide member 43 formed with an annular guide surface 43s that changes obliquely downward, a lower port 44b is opened into the liquid L at the bottom of the aeration tank 31 as a liquid inlet, and an upper port 44a is opened. It comprises a fixed guide tube 44 which is closely opposed to the lower tube opening 41b of the rotary tube 41.

Reference numeral 45 denotes a drive motor for an aeration / stirring pump disposed on the upper surface side of the upper wall 31w of the aeration tank 31. This motor 45 is connected to the rotary blades 42 and the scattering guide in the tank via a rotary shaft 46. In addition to being connected to the member 43, the scattering guide member 43 and the rotary cylinder 41 are connected via the connecting member 47, whereby the rotary cylinder 41, the rotary blades 42, and the scattering guide member 43 are integrally driven by a motor. Rotate.

That is, in this aeration / stirring pump 40,
The rotation of the rotary blades 42 causes the inner surface 41 of the rotary cylinder 41 to rotate.
The liquid L applied to the lower end of the s
The reverse conical inner surface 41 of the rotary cylinder 41 by centrifugal action due to the rotation of
s, the upper cylinder opening 4 of the rotating cylinder 41
It is scattered radially outward from the edge of 1a. Along with this, the liquid L at the bottom of the aeration tank 31 is sucked from the lower port 44b of the guide cylinder 44, and the sucked liquid L is transferred to the guide cylinder 44.
To the rotating blades 42.

The rotary cylinder 41 is provided by the pump function.
The liquid L radially scattered from the upper cylindrical port 41a is turned obliquely downward by the collision with the guide surface 43s, which is the inner peripheral surface of the scatter guide member 43, and falls on the liquid surface in the aeration tank 31. By causing the scattered liquid L to strike the liquid surface in the tank while maintaining the momentum of the scattered liquid L after colliding with the guide surface 43a by the rotation of the scattering guide member 43, the liquid level in the tank The contact between the upper air IA and the scattered liquid L, and the disturbance of the liquid level in the tank caused by hitting of the scattered liquid L, causes the liquid L in the tank to change.
Is efficiently aerated, and the incorporation of oxygen into the tank liquid L by this aeration promotes the decomposition of garbage G by aerobic microorganisms.

Further, a large liquid flow over the entire tank of the aeration tank 31 is generated by the radial scattering of the liquid on the liquid surface in the tank and the liquid suction from the lower port 44b of the guide cylinder 44 as described above,
This makes it possible to eliminate the need for a dedicated stirrer and to reduce
Oxygen is sufficiently distributed throughout the liquid in the tank, and the decomposition of the garbage G by the aerobic microorganisms proceeds uniformly and efficiently in the entire tank of the aeration tank 31.

A plurality of radially arranged rotating blades 42 are respectively connected to the center axis P of the rotating cylinder 41 (that is, the rotating shaft 46).
(The center axis of the rotary cylinder 41), and thereby the liquid L is efficiently applied to the inner surface 41s of the rotary cylinder 41 to enhance the pump function.

The lower end portions of the plurality of connecting members 47 connecting the scattering guide member 43 and the rotary cylinder 41 (that is, portions facing the liquid L rising along the inner surface 41s of the rotary cylinder 41) are in the liquid. Is formed in an arc-shaped pointed cross-sectional shape in which the fibrous material is difficult to be caught, and a gap 48 is provided between the outer peripheral end of each rotary blade 42 and the inner surface 41s of the rotary cylinder 41, so that the liquid caught by the rotary blade 42 The fiber is separated from the rotating blades 42 in the gap 48 by centrifugal action.

Reference numerals 49a and 49b denote bearings for supporting the rotating shaft 46, and reference numeral 50 denotes a bearing case for accommodating the bearings 49a and 49b. The bearing case 50 and the top plate 43a of the scattering guide member 43 are used to form the bearings 49a and 49b. In the tank L
Prevents sprinkling.

Reference numeral 51 denotes a decomposed liquid discharge passage for sending a part L ″ of the garbage decomposed liquid L in the aeration tank 31 to the treated material input port 13 of the drying apparatus 1 by using the submersible pump 33. The decomposed liquid L ″ sent to the drying device 1 through the passage 51 is dried in the processing vessel 2 of the drying device 1 by the hot air N supplied from the hot air generator 3, whereby the solid content in the decomposed liquid L ″ (ie, Garbage decomposition residue), the amount of input garbage 1
An odorless powdery dried substance Z reduced to about 3% is recovered.

Reference numerals V2 and V3 denote upstream and downstream decomposed liquid discharge valves interposed in the decomposed liquid discharge passage 51. The upstream decomposed liquid discharge valve V2 is opened and the downstream decomposed liquid discharge valve V3 is closed. From the state in which the decomposed liquid L ″ sent to the decomposed liquid extraction path 51 by the submersible pump 33 is returned to the aeration tank 31 from between the two valves V2 and V3 through the branch return path 53, first, the upstream decomposed liquid extraction valve V2 is turned off. By closing, the remaining decomposed liquid L ″ in the decomposed liquid extraction path 51, which is located above the branch of the return path 53, is returned to the aeration tank 31 by its own weight through the return path 53, and then the downstream decomposed liquid By opening the take-out valve V3, a certain amount of the decomposed solution L ″ remaining in the portion above the decomposed solution take-out valve V3 on the downstream side in the decomposed solution take-out path 51 flows down to the treated material inlet 13 of the drying device 1.

That is, when the decomposition of the garbage G in the aeration tank 31 has sufficiently proceeded, the two decomposition liquid extraction valves V
2, the opening / closing operation of V3 as described above is repeatedly and automatically executed at regular time intervals, so that the portion between the downstream side of the decomposition liquid extraction valve V3 in the decomposition liquid extraction path 51 and the branch of the return path 53 is separated. In a form of a measuring device, a constant amount of the decomposition solution L ″ is supplied to the processing vessel 2 of the drying device 1 at regular intervals, and the drying process of the decomposition solution L ″ in the drying device 1 is continuously performed.

Reference numeral 55 denotes a hot-air exhaust passage through which the hot air N ″ discharged from the collecting device 4 attached to the drying device 1 is sucked into the ventilation fan 37 together with the outside air OA for ventilation. By introducing N ″ into the aeration tank 31 together with the ventilation outside air OA, the water vapor in the discharged hot air N ″ is condensed in the aeration tank 31 and the condensed water is collected in the aeration tank 31 and the discharged hot air N ″ is recovered. Is recovered in the aeration tank 31 as a heat source for promoting the decomposition of garbage, and the discharged hot air N ″
Only the non-condensed gas inside is discharged from the exhaust path 39 to the outside together with the air IA on the liquid level in the tank.

V4 is a water supply valve for opening and closing the supply water channel 56 for the aeration tank 31, and 57 is a liquid level detection device for detecting the liquid level in the tank of the aeration tank 31, and the liquid level detection information of the liquid level detection device 57 By controlling the opening and closing of the water supply valve V4 based on
The liquid level in the aeration tank 31 is maintained in an appropriate range.

In order to prevent the water supply valve V4 from repeatedly opening and closing in a hunting manner, a certain restriction is imposed on the opening and closing control of the water supply valve V4 based on the liquid level detection.
The liquid level in the tank of the aeration tank 31 fluctuates within a certain range.
When the liquid is supplied, the liquid level in the aeration tank 31 temporarily decreases. However, these liquid level fluctuations are dealt with by the lift of the aeration / stirring pump 40 (that is, the height dimension of the rotary cylinder 41).
The aeration and stirring by the liquid scattering can be stably continued irrespective of the liquid level fluctuation.

Reference numeral 58 denotes an operation control device. The operation control device 58 includes a submersible pump 33, a crushing / transport pump 35,
It controls the operation of the aeration / stirring pump 40, the drying device 1, and the hot air generating device 3, and controls the opening and closing of the carrier liquid supply valve V1, the decomposition solution extraction valves V2, V3, and the water supply valve V4.
Further, based on the liquid temperature in the tank of the aeration tank 31 detected by the temperature sensor 59, the air flow of the ventilation fan 37 is controlled so as to keep the liquid temperature in the tank at an appropriate temperature.

In FIG. 4, since the overall configuration of the garbage disposal apparatus is shown, the dimensional ratio of each part of the apparatus in the figure is different from that of the actual apparatus. Is drawn such that the scattered liquid L from the tank falls on a part of the liquid level in the tank.
Is adopted such that the scattered liquid L from the upper cylindrical port 41a falls over almost the entire liquid surface in the tank.

The drying device 1 and the collecting device 4 have the same structure as that shown in the first embodiment. In this drying device 1, hot air is supplied from the hot air generating device 3 and the packed bed is stirred by the rotating blades 9. As a result, a certain amount of the garbage decomposed liquid L ″ as a treatment product measured as described above and supplied from the treatment material inlet 13 to the front chamber 2a of the treatment container 2 is put into the granular material packed bed J. In the dispersed state, the solid content in the decomposed liquid L ″ is dried while being crushed in the packed bed J by contact with the hard granular material r by stirring the packed bed J, and the solid content in the drying process is reduced. Due to the transportation by the passing hot air N, it is gradually moved from the front chamber 2a to the rear chamber 2b in the packed bed J.
The powdery dried material Z, which has been sufficiently dried and sufficiently pulverized to be able to be put on the hot air N 'by the treatment, is discharged from the rear chamber 2b through the hot air discharge port 14 along with the hot air N'. .

In the collecting device 4, the powdery dried product Z discharged from the processing container 2 of the drying device 1 collides with the collision member 20 in the device case 19, and the collection container 21
To be collected.

[Other Embodiments] Next, other embodiments will be listed.

In the first embodiment of the present invention, the processing chamber 2 in which the front chamber 2a and the rear chamber 2b are formed is not necessarily limited to the one having a horizontal cylindrical inside. Can have various shapes and structures, and the volume ratio between the front chamber 2a and the rear chamber 2b is not limited to the volume ratio of about 1: 1 as shown in the above-described embodiment. An appropriate volume ratio may be selected according to the conditions.

In the embodiment of the present invention, the hard granular material r forming the granular material-filled layer J in the front chamber 2a and the rear chamber 2b includes various kinds of ceramic granular materials and metallic granular materials. A material of a material can be used, and the particle size and the temperature of the supplied hot air N may be appropriately selected according to the processing object.

In the embodiment of the present invention, the agitating means for agitating the packed bed J is not limited to the rotating blade type as shown in the above-described embodiment, but may be a type that vibrates the packed bed J, Various types, such as a type in which the granular material r forming the packed layer J is caused to flow convectively in the container, can be adopted.

In the first embodiment, an example in which the packed bed J is stirred in the decomposition step has been described. However, in some cases, in the implementation of the invention according to claim 5, the decomposition step may be performed while the supply of hot air and the packed bed stirring are stopped. You may make it implement.

Further, in the first embodiment, the decomposition product and the drying process are carried out by putting the processed product (garbage G) together with an appropriate amount of water into the processing container 2. In the implementation of the invention according to claim 5, depending on the water content of the processed product, only the processed product may be charged into the processing container 2 without adding water.

[Brief description of the drawings]

FIG. 1 is a structural diagram of a garbage processing apparatus showing a first embodiment.

FIG. 2 is a cross-sectional view of the drying apparatus according to the first embodiment.

FIG. 3 is a partially cutaway perspective view of the trapping device according to the first embodiment.

FIG. 4 is a structural diagram of a garbage processing apparatus showing a second embodiment.

FIG. 5 is an enlarged side view of a pump portion showing a second embodiment.

FIG. 6 is a cutaway perspective view and a plan view sectional view of a pump portion showing a second embodiment.

FIG. 7 is a structural diagram of a drying apparatus showing a comparative example.

FIG. 8 is a structural diagram of a drying apparatus showing a conventional example.

FIG. 9 is a structural view of a drying apparatus showing another conventional example.

[Explanation of symbols]

 2 Processing Container 2a Front Chamber 2b Rear Chamber 4 Collection Means 7 Vertical Wall 7a Communication Port 9 Stirring Means, Rotating Blade 12 Hot Air Supply Port 13 Processing Input Port 14 Hot Air Outlet 16 Fan 17 Hot Air Return Path r Hard Granular Material G Processing Material, garbage J Packed bed L "Processed material N Hot air for drying N 'Discharged hot air N" Discharged hot air after separation of dried product Z Dryed product

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B02C 17/16 B02C 17/16 B 4G078 17/18 17/18 D B09B 3/00 F26B 9/06 Q ZAB 11/14 F26B 9/06 B09B 3/00 ZABD 11/14 303M F term (reference) 3L113 AA06 AB03 AC01 AC45 AC46 AC53 AC60 AC63 AC68 AC73 AC86 BA00 BA02 DA01 DA05 DA06 DA11 DA22 4D004 AA03 AB01 CA04 CA15 CA19 CA42 CB28 CB36 CB36 CB28 CB50 4D031 AB07 BB04 BB10 4D063 FF14 FF23 FF35 GA10 GC05 GC12 GC19 GC32 4G037 CA01 EA03 4G078 AA04 AA07 AB20 BA01 CA08 DA01 EA03 EA13

Claims (5)

[Claims] The interior of a processing vessel is partitioned into a front chamber and a rear chamber by a vertical wall, and a communication port that connects the two chambers to each other is formed in the vertical wall. And forming a packed layer of hard granular material in the filled layer so that the communication port is immersed in the packed layer, and a stirring means for stirring the granular material packed layer in both chambers is provided, A processing material input port to be charged, a hot air supply port for supplying hot air for drying to the front chamber, and a hot air discharge port for discharging hot air passing through the room from the rear chamber together with powdery dry processing material accompanying the hot air supply port are provided. Hot air dryer. 2. The front chamber and the rear chamber are formed by the vertical wall having a posture orthogonal to a center axis of the horizontal cylindrical shape, and the inside of the processing container is formed in a horizontal cylindrical shape. 2. The hot-air drying apparatus according to claim 1, wherein rotating blades that rotate along the inner peripheral surface of the processing container around the central axis of the cylindrical shape are provided in each of the front chamber and the rear chamber. 3. The hot-air drying apparatus according to claim 2, wherein the communication port is formed at a lower portion of the vertical wall at a position deviated to a lower side in a rotation direction of the rotary blade. 4. A collecting means for separating and collecting a powdery dry processed material accompanying the hot air discharged from the hot air outlet from the discharged hot air, wherein the collecting means separates the dried processed material from the hot air. The hot-air drying device according to any one of claims 1 to 3, further comprising a hot-air return path that returns a part of the discharged hot air to the rear chamber by a fan. 5. A garbage disposal method using the hot-air drying device according to any one of claims 1 to 4, wherein garbage is charged into the processing container from the processed material input port, A decomposition step of decomposing the input garbage by aerobic microorganisms inside the processing container, and performing a hot air supply from the hot air supply port and a packed bed stirring by the stirring means to powder the decomposition garbage in the decomposition step. A garbage disposal method comprising: