JP2001252640A - Decomposition treating system for organic waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decomposition treating system for organic wastes which is capable of easily intensifying decomposition treatment ability, efficiently treating a large amount of materials to be treated, and lessen the degradation in the treatment ability by the excess of moisture. SOLUTION: This decomposition treating system is provided with plural units of treating devices for subjecting the materials to be treated together with sawdust to microorganism decomposition in treating vessels 4. These treating devices B1 to B6 are connected by connecting paths 20 in such a manner that the treating vessels 4 and 4 are communicated with each other. The system has a force transferring means 21 for forcibly transferring the materials to be treated and the sawdust to a prescribed direction within the connecting paths 20 described above. A large amount of the materials and the sawdust are rapidly transferred and dispersed to another treating vessels by the forcibly transferring means 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decomposition treatment system for microbial decomposition of organic waste, and more particularly to an organic waste suitable for microbial decomposition of manure and litter discharged from a barn or other livestock barn. And a decomposition processing system.

[0002]

2. Description of the Related Art A conventional disassembly processing apparatus is disclosed in Japanese Patent Application Laid-Open No. Hei 11-300244 by the present applicant. This decomposition treatment device is for treating microorganisms such as manure and garbage with organic waste such as garbage as well as sawdust, and highly efficiently agitates and mixes the treated materials and sawdust and activates microorganisms. It has a high decomposition treatment capacity, and has many excellent effects, such as being able to effectively use the post-decomposition treatment object and sawdust as a high-quality fertilizer and soil improvement material, and has public toilets and nursing toilets. It is used in livestock toilets, garbage disposal machines, and the like.

When the manure discharged from the barn is treated by the above-mentioned conventional decomposition processing apparatus, the material to be treated includes litter such as straw and sawdust in addition to the manure, so that a large amount of discharge is required. Therefore, there is a possibility that the processing capacity will be exceeded. That is, if the amount of the object to be processed is too large, the object to be processed cannot be completely collected in the processing tank, and the drive unit of the stirring mechanism for stirring the object to be processed and the sawdust in the processing tank is excessive. There is a concern that it will become a burden. Therefore, in order to cope with the above situation with the conventional decomposition processing apparatus, it is conceivable to increase the size of the processing tank, but it is difficult to install the decomposition processing apparatus on site. In addition to the problem, cows discharge about 40 to 50 times as much urine as humans, so even if the processing tank is enlarged, a large amount of urine accumulates in the lower part of the processing tank and the processing capacity due to microbial degradation is reduced. It is feared that.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a processing apparatus capable of easily increasing the decomposition processing capacity and efficiently processing a large number of objects to be processed. Another object of the present invention is to provide a system for decomposing organic waste, which reduces a decrease in processing capacity due to excess water.

[0005]

Means for Solving the Problems As a technical means of the present invention for solving the above-mentioned problems, a first aspect of the present invention is to provide a plurality of processing apparatuses for decomposing an object to be processed into microorganisms together with sawdust in a processing tank. An organic waste decomposition processing system in which a plurality of processing apparatuses are connected by a communication path so that processing tanks communicate with each other, wherein forcible transfer for forcibly transferring an object to be processed and sawdust in a predetermined direction in the communication path. Means is provided.

Here, the object to be treated refers to organic waste put into the treatment tank, such as manure and litter discharged from a barn. In addition, the mode of each of the above-described processing apparatuses is not particularly limited as long as the organic waste is decomposed by microorganisms in the treatment tank. An embodiment having a stirring blade for stirring the object together with the sawdust is preferable.

[0007] The forced transfer means means all of the mechanisms for forcibly transferring an object to be treated and sawdust from the upstream processing tank to the downstream processing tank in the communication passage by power from a power source. And both the embodiment provided on the communication passage side and the embodiment provided on the processing tank side. That is, as an embodiment in which the forced transfer means is provided on the communication passage side, for example, an embodiment in which a jet pump type suction device is provided in the communication passage, or a screw conveyor in which a conveyance screw is provided in the communication passage. An aspect configured,
In this embodiment, a movable scraper is provided so as to transfer the workpiece and sawdust into the communication passage. Further, as an embodiment in which the forced transfer means is provided on the processing tank side, for example,
The above-described suction device is provided in the upstream processing tank, and the discharge section of the suction device is communicated with the communication passage, or the upstream and downstream processing tanks are connected to each other by a substantially horizontal communication passage. An aspect in which a device for pushing the object to be treated and sawdust into the upstream processing tank toward the inside of the communication passage is provided, more specifically, a stirring mechanism for stirring the object to be treated and sawdust is provided in the processing tank. A configuration in which the workpiece and sawdust are pushed into the communication passage by the blade of the stirring mechanism, and a configuration in which the workpiece and sawdust are pushed into the communication passage by a scraper movable in the processing tank. It is an aspect. The arrangement of the plurality of processing apparatuses is not particularly limited. For example, an arrangement in which a plurality of processing apparatuses are arranged in series, an arrangement in which the arrangement of one row is arranged in a plurality of rows, and a processing object and sawdust are circulated. And the like in which the circuit is arranged in an infinite loop so as to form a circulation path.

According to a second aspect of the present invention, the forcible transfer means is provided in the communication passage.
This technical means is, specifically, as described above, a mode in which a mechanism such as a suction device, a screw conveyor, or a movable scraper is provided in the communication passage or connected to the communication passage. This is a particularly preferable embodiment in which the object to be treated and the sawdust are forcibly transferred directly in the communication passage, so that the transfer efficiency is high and the sawdust is efficiently transferred. According to a third aspect of the present invention, the communication passage connects the lower side of the upstream processing tank and the upper side of the downstream processing tank. A fourth aspect of the present invention is characterized in that the plurality of connected processing apparatuses constitute a circulation path for circulating an object to be processed and sawdust.

According to a fifth aspect of the present invention, the plurality of processing apparatuses include a high-temperature processing apparatus and a medium-temperature processing apparatus in which the inside of the processing tank is heated. The inside of the treatment tank is set at a high temperature to evaporate the water in the treatment tank, and the intermediate temperature treatment device is set at an intermediate temperature in the treatment tank to promote the decomposition of microorganisms in the treatment tank. I do. Here, the high temperature means a temperature at which harmful bacteria in the processing tank can be sterilized and water in the processing tank can evaporate, and the medium temperature means a state in which microbial decomposition in the processing tank is the best. Temperature (about 40 to 50 degrees).

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show an example of an organic waste decomposition treatment system according to the present invention. In the decomposition processing system X, a plurality of processing devices B1 to B6 that decompose an object to be processed and microorganisms together with sawdust in the processing tank 4, and the processing tanks 4 and 4 communicate the plurality of processing devices B1 to B6. And a forced transfer means 21 for forcibly transferring the object and sawdust in a predetermined direction in the communication path 20, and the object to be processed is supplied from a supply path 81 passing through the upper surface of the processing apparatus B1. In addition, the processing target and sawdust after the microbial decomposition are collected at the recovery port 3 on the side of the processing device B6.
It is configured to be able to be collected from the same.

In each of the processing apparatuses B1 to B6, a processing tank 4 made of a corrosion-resistant metal plate such as stainless steel and having a curved bottom surface is fixed in a box-shaped casing 1 having an upper opening. The agitator A is rotatably fixed to the shaft, and the upper opening of the housing 1 is closed by the upper plate 2. I have. The processing devices B1 to B6 are connected by the communication passage 20, so that the processing target 4 and the sawdust are circulated in a predetermined direction inside the communication between the processing tank 4 and the communication passage 20. Make up the road. Also, the collection port 31
Is provided with a passage (not shown) for communicating between the inside of the processing tank 4 and the outside of the processing apparatus B6, and a door which can be opened and closed at an opening of the passage so that the processed object and sawdust can be periodically processed. It is made possible to collect it.

An intake fan 7 is provided on the side surface of the housing 1, and air in the processing tank 4 is discharged from an exhaust pipe 8 provided on the upper surface of the upper plate 2 by introducing outside air into the processing tank 4. It is made to let. A strainer is provided in the ventilation path of the intake fan 7 to prevent sawdust in the processing tank 4 from flowing out. In the present embodiment, the housing 1 is formed to have a size that can be almost completely accommodated in a 4-ton truck.

The exhaust pipe 8 discharges the air pushed out of the processing tank 4 by the intake fan 7 to the outside. If necessary, an umbrella is provided at the upper end to prevent rainwater from entering. A deodorizing filter is provided in the ventilation path. The exhaust pipe 8 is provided with a plurality of processing devices B1 to B
6, the respective exhaust pipes 8 may be merged, and the umbrella or the deodorizing filter may be provided at the tip thereof. Also, upper plate 2
A handrail 9 is provided on the upper surface side of the upper plate 2 so that a person can safely perform inspection work on the upper plate 2.

As shown in FIG. 3, the stirrer A in the processing tank 4 is composed of a left stirrer A1 and a right stirrer A2 with a center part of the rotary shaft 10 as a boundary. A2
Means a plurality of outer stirring blades 11... 11, 11A.
11A and an inner stirring blade 12 located inside thereof.
12, 12A... 12A.

Outer stirring blades 11 ... 11, 11A ... 1
1A are supported by a plurality of radial support rods 13... 13 concentrically fixed to the rotating shaft 10 respectively.
As shown in the figure, the blades are arranged on spirals S, S1 opposite to each other with the axis of the rotating shaft 10 concentric, and are disposed at a fixed interval between adjacent blades. While being locally stirred and mixed, the rotary shaft 10 can be transported from the center to both ends.

Inner stirring blades 12 ... 12, 12A ... 1
2A are each formed in a blade shape and fixed along the longitudinal direction of the support rod 13, and the outer stirring blades 11.
1, 11A... 11A are inclined so as to be conveyed in a direction opposite to the conveying direction. This inclination angle is opposite to the right inclination and the left inclination, and the outer stirring blades 11.
Similar to 1, 11A... 11A, the object to be treated and the sawdust in the tank are formed so as to be conveyed from both ends of the rotary shaft 10 to the center while being locally stirred and mixed.

Reference numerals 14... 14 and 14 A.
Is a cutting section for cutting feces, straw and the like into fine pieces or hooking them and forcibly mixing them into sawdust.
5A is a scraping unit for scraping an object to be processed and sawdust pressed against the inner surface of the housing 1.

The rotating shaft 10 of the stirring section A has
The drive shaft of the drive unit 24 fixed to the side surface of the housing 1 is connected. The drive unit 24 is a gear motor configured to reduce the rotation torque of the drive shaft and reduce the load torque by incorporating a gear, and is controlled by a control unit (not shown) to continuously drive the stirring unit A. Or rotate it in a timely manner. The mode of the driving unit 24 is not limited to the above, and may be a mechanism using a motor, a chain, and a sprocket, or may be provided at the end of the rotating shaft 10 exposed outside the housing 1. A configuration in which a handle is provided and the stirring unit A can be manually turned by turning the handle may be employed. In addition, the mode of the stirring section A is not limited to the above configuration as long as the object and the sawdust are stirred and mixed so as to promote microbial decomposition in the processing tank 4.

A heater 5 is provided on the bottom of the processing tank 4.
Is fixed. The heater 5 includes processing devices B1 to B
6, among the processing apparatuses B1 to which the processing object and the sawdust are directly supplied from the supply path 81, those having a high calorific value are used, and the processing apparatuses B2 to B6 are those having a medium calorific value. That is, in the processing apparatuses B1 to B6, the processing apparatus B1 is used as a high-temperature processing apparatus and the other processing apparatuses B2 to B6 are used as medium-temperature processing apparatuses by setting the heat amount of the heater 5.

Therefore, in the processing apparatus B1 (high-temperature processing apparatus), the temperature in the processing tank 4 is raised by increasing the temperature in the processing tank 4.
The inside is sterilized and moisture in the processing tank 4 is evaporated. In the present embodiment, the heater 5 of the processing apparatus B1 (high-temperature processing apparatus) has a surface temperature of 150-2.
One that reaches 00 degrees is used. In the processing apparatus B1, microbial decomposition is also performed in the processing tank 4, but sterilization and evaporation of water are particularly efficiently performed.

On the other hand, in the processing apparatuses B2 to B6 (medium temperature processing apparatus), the temperature in the processing tank 4 is set to a temperature at which microorganisms live actively (about 40 to 50 degrees), so that Is performed with the best efficiency.

The temperature in the processing tank 4 is controlled by the processing devices B1 to B1.
The means for making the difference according to 6 is not limited to changing the capacity of the heater 5 as described above. For example, a temperature sensor for detecting the temperature in the processing tank 4 is provided to control the ON / OFF of the heater. Then, the set temperature may be changed according to the processing device. Further, a warm air fan having a built-in heater is used as the above-described intake fan 7, and the heater capacity of the warm air fan is changed according to the processing device, and the heater is turned on / off to process the set temperature. You may make it change according to an apparatus.

The communication passage 20 is connected to a forced transfer means 21 fixed to the side surface of the housing 1 corresponding to the lower side of the processing tank 4, and has one end connected to the forced transfer means 21 and the other end connected to the downstream side. Connecting pipe 22 penetrated through the upper plate 2 in the processing tank
And

The forced transfer means 21 is a well-known jet pump type suction device having an ejector formed in a tube.
The high-pressure air is supplied from the air compressor 21a fixed to the outer wall of the housing 1, and the high-pressure air jets the fluid or the powdered fluid that is sucked in upstream or downstream to the downstream.
Therefore, this forced transfer means 21 sucks and sends out the object to be treated and sawdust from the lower side of the processing tank 4 on the upstream side, and transfers the object to be treated and the sawdust through the communication pipe 22 to the processing tank on the downstream side. 4 to the upper side.

The upper and lower positions at which the object to be treated and the sawdust are sent out from the processing tank 4 are set in order to prevent the moisture accumulated in the processing tank 4 from leaking to the outside from the bearing portion supporting the rotary shaft 10. It is preferably at least lower than the rotating shaft 10, and more preferably, it is arranged so as to correspond to the lowermost part in the processing tank 4 in order to efficiently suck moisture accumulated in the lower part in the processing tank 4. You.

According to the disassembly processing system X having the above configuration, the following operation and effect can be obtained. Since the objects to be processed and sawdust are forcibly transferred between the connected processing apparatuses by the forcible transfer means 21 provided in the communication passage 20, the processing objects having a capacity equal to or larger than the processing apparatus B1 are supplied from the supply path 81 to the processing apparatus B1. Even if supplied, the objects to be treated and sawdust exceeding the capacity can be efficiently and promptly transferred to the downstream processing apparatuses B2 to B6 and dispersed.

In addition, the communication passage 20 provided with the forced transfer means 21 sends out the processing object and sawdust from the lower side of the processing tank 4 on the upstream side, and transfers the processing object and sawdust to the processing tank on the downstream side. In particular, treatment tank 4
The water remaining on the lower side of the tank can be quickly transferred to the downstream processing tank 4 and dispersed. At this time, the transferred water is supplied into the downstream processing tank 4 from the upper side thereof, so that the water is dispersed and diffused into the object to be processed and the sawdust in the downstream processing tank 4, and the evaporation is promoted. Is done.

Further, a plurality of connected processing apparatuses B1 to B1
Since B6 forms a circulation path for circulating the object to be treated and sawdust, the supplied object to be treated and sawdust are repeatedly stirred and mixed in the entire decomposition treatment system X, and the decomposition of microorganisms in each treatment tank 4 is performed. Make progress uniform.

The processing tank used as the high-temperature processing apparatus is:
The present invention is not limited to the above-described embodiment, and any one of the processing apparatuses B1 to B6 or A plurality of processing devices may be used as high-temperature processing devices.

In the illustrated example, the object to be processed is supplied from the supply path 81 only to the processing apparatus B1, but the supply path 81 is provided for other processing apparatuses, and the processing apparatus B1 is supplied to a plurality of processing apparatuses. By configuring so that the object to be processed is supplied, a large amount of the object to be processed may be efficiently distributed to a plurality of processing apparatuses.

In the illustrated example, the recovery port 31 is provided only in the processing device B6, but by providing it in another processing device,
The processed object and sawdust after the processing may be collected from a plurality of locations, and the efficiency of the collection operation may be improved. Further, a separate collection box in the form of a hollow box is provided, and the collection box is connected to any of the processing apparatuses via the communication passage 20 or the upper communication passage 60, and the object to be processed and sawdust can be collected from the collection box. With this configuration, the object to be processed and sawdust are stored in the collection box, so that the collection cycle can be lengthened and the frequency of collection can be reduced.

Further, the forcible transfer means 21 is not limited to the above, and may be, for example, a screw conveyor configured to drive and rotate a screw in a pipe. In this case, the upstream and downstream processing tanks 4 and 4 may be connected to each other by the pipe of the screw conveyor.

Next, as another mode of the forced transfer means, as shown in FIG. 4, an object to be processed and sawdust in the upstream processing tank 4 are pushed into the downstream processing tank 4 by the agitating section A '. An embodiment configured as described above will be described. The forced transfer means 21 'of this embodiment is configured by replacing the stirring section A with the stirring section A' in the decomposition processing system X, and replacing the communication passage 20 with the upper communication passage 60 and the lower communication passage 70. ing.

The stirring section A 'is configured such that either the left or right stirring section (A or A2) of the above-described stirring section A is axially extended with the same blade pattern. Then, as shown in FIG. 4, the stirring section A ′ transports the workpiece and the sawdust in the axial direction toward the downstream processing tank 4 near the outer periphery and in the opposite direction near the rotary shaft 10. It is rotated in the rotating direction.

The upper side communication passage 60 is a tube having a rectangular section with a vertical cross section communicating the processing tanks 4 and 4 on the upstream side and the downstream side in a substantially horizontal shape. The processing object 4 and the sawdust, which are less in the upper layer, are transferred to the downstream processing tank 4.
Transfer to The length and cross-sectional dimension of the upper side communication passage 60 are set so that the object to be processed and sawdust are pushed by the stirrer A 'and transported smoothly.

The lower communication passage 70 is a pipe that communicates the upstream and downstream processing tanks 4 and 4 at the lowermost portion thereof, and removes water accumulated in the lower part of the upstream processing tank 4 to the downstream side. In the treatment tank 4. A large number of small holes 71 or filters are provided on the side surfaces of both housings 1 and 1 corresponding to the lower side communication passage 70, and organic substances other than water enter the passage and become clogged. Has been prevented.

According to the forced transfer means 21 'of this embodiment, as shown in FIG. 4, the object to be processed and the sawdust in the upper layer in the processing tank 4 are moved in the axial direction by the stirring section A'. By pushing, it passes through the upper side communication passage 60 and is forcibly transferred to the processing tank 4 on the downstream side.

Therefore, the forced transfer means 21 'has the function of forcibly transferring the object to be processed and sawdust in the stirring section A', and thus has an advantage that the mechanism between the processing apparatuses can be simplified.

In the embodiment using the forcible transfer means 21 ', the connection points in the direction in which the rotating shaft 10 is parallel (the connection points between the processing apparatus B3 and the processing apparatus B4, and the processing apparatus B
6 and the processing device B1), the upstream and downstream processing devices may be connected by the communication passage 20 including the above-described forced transfer means 21.

In this embodiment, in order to further improve the transfer efficiency of the object to be treated and sawdust, in addition to the forced transfer means 21 'by the agitating section A', a communication passage having the above-mentioned forced transfer means 21 is provided. 20 may be added.

[0041]

Since the present invention is configured as described above, it has the following effects. (Claim 1) Since an object to be processed and sawdust are forcibly transferred by the forced transfer means between the connected processing apparatuses, even if any one of the processing apparatuses is supplied with an object to be processed having a capacity equal to or larger than the capacity. The objects to be treated and the sawdust exceeding the capacity can be sequentially transferred to the downstream processing apparatus efficiently and dispersed. Therefore, even when a large amount of material to be supplied is supplied, as in the case of disassembling the excrement and litter discharged from the barn, by increasing the number of processing devices connected by the communication passage, The decomposition processing capacity can be easily increased without increasing the size of each processing tank. Moreover,
Since the supplied processing object is quickly transferred to another processing tank by the forced transfer means and dispersed, a large amount of the processing object can be efficiently processed. In addition, even when a large amount of water is contained in the object to be treated, such as manure discharged in a barn, the moisture is transferred to a plurality of processing devices by forced transfer means together with other objects to be treated and sawdust. Since the dispersion can be performed, it is possible to reduce the degradation of the decomposition treatment capacity due to excessive moisture. (Claim 2) Further, by providing the communication passage with the forced transfer means, the processing apparatus side can have an existing configuration, and the object and the sawdust can be efficiently transferred in the communication passage. (Claim 3) Further, the communication passage connects the lower side of the upstream processing tank and the upper side of the downstream processing tank so that the water accumulated in the lower side of the processing tank can be quickly reduced. Can be forcibly transferred to the processing tank on the side and dispersed. At that time, the transferred water is supplied into the downstream processing tank from the upper side thereof, so that the moisture is dispersed and diffused into the object to be processed and the sawdust in the downstream processing tank, and the evaporation is promoted. . Accordingly, the dispersion of the water to the plurality of processing devices and the evaporation of the dispersed water are promoted with high efficiency, and the decrease in the microorganism decomposing ability due to excessive water can be further reduced. (Claim 4) In addition, if a circulation path for circulating the object to be processed and sawdust is constituted by a plurality of connected processing apparatuses, the supplied object to be processed and sawdust are repeatedly stirred and stirred in the entire system. Because of the mixing, the degree of progress of the microbial decomposition in each treatment tank can be made uniform. Therefore,
In addition to being able to use the sawdust's microbial decomposing ability to the utmost effect in each treatment tank, the processed material and sawdust after microbial decomposition have a uniform maturity and are effective as high-quality fertilizers and soil conditioners. Available. (Claim 5) Further, if the plurality of processing devices are configured to include a high-temperature processing device and a medium-temperature processing device, the sterilization and evaporation of moisture are intensively promoted in the high-temperature processing device. And microbial degradation is efficiently promoted. Therefore, the entire system can significantly reduce the generation of harmful bacteria and the degradation of the decomposition treatment capacity due to excess water, and can promote the microbial decomposition with high efficiency.

[Brief description of the drawings]

FIG. 1 is a top view showing an example of an organic waste decomposition treatment system according to the present invention.

FIG. 2 is a sectional view taken along line (2)-(2) in FIG.

FIG. 3 is a perspective view showing an example of a stirring unit.

FIG. 4 is a vertical sectional view of a main part showing another example of a forced transfer means.

[Explanation of symbols]

 4: Treatment tank 5: Heater 20: Communication passage 21, 21 ': Forced transfer means 21a: Air compressor A, A': Stirrer B1 to B6: Processing device

Claims (5)

[Claims] 1. A plurality of processing devices for decomposing a substance to be processed together with sawdust and microorganisms in a processing tank are provided, and the plurality of processing devices are connected by a communication passage so that the processing tanks communicate with each other. An decomposition treatment system for organic waste, comprising: a forced transfer means for forcibly transferring an object to be treated and sawdust in a predetermined direction in the communication passage. 2. The organic waste decomposition treatment system according to claim 1, wherein said forced transfer means is provided in said communication passage. 3. The decomposition of organic waste according to claim 1, wherein the communication passage communicates between a lower side of the upstream processing tank and an upper side of the downstream processing tank. Processing system. 4. The organic waste according to claim 1, wherein the plurality of connected processing apparatuses constitute a circulation path for circulating the object and the sawdust. Disassembly processing system. 5. The plurality of processing apparatuses include a high-temperature processing apparatus and a medium-temperature processing apparatus in which the inside of the processing tank is heated, wherein the high-temperature processing apparatus sterilizes the inside of the processing tank and removes water in the processing tank. The inside of the processing tank is set at a high temperature to evaporate, and the medium temperature processing device is set at an intermediate temperature in the processing tank to promote the decomposition of microorganisms in the processing tank. 4. The organic waste decomposition treatment system according to any one of 4.