JPH02164785A - Circular fermentation device - Google Patents

Abstract

PURPOSE:To successively move the supplied raw material to a discharge opening by horizontally moving the rotating shafts of endless conveyer belt body provided on the travelling frame in parallel from the center line of the fermentation vessel. CONSTITUTION:This circular fermentation device consists of the fermentation vessel 1, the travelling frame 3 which rotates on a rail 2 with the center axis Oz as the rotation center, and the agitation unit 5 which is set on the frame and agitates the deposit 4 in the vessel 1. The rail 2 is annularly set on the side wall 1a of the vessel 1. An endless belt 10 is disposed in the unit 5, and the center axis Oa of the rotating shafts 9a, 9b of the belt body 10 is moved by the distance (e) to the center line Oy on the plane surface of the fermentation vessel 1 in parallel in the horizontal direction.

Description

Detailed Description of the Invention "Field of Industrial Application" The present invention relates to circular fermentation for producing organic fertilizer by depositing organic raw materials for a certain period of time and composting them by periodically stirring. Regarding equipment.

``Prior art'' The applicant previously used organic matter as a raw material to produce
A circular fermentation bag GL (Japanese Utility Model Application No. 62-61889) suitable for use in producing organic fertilizer by E conversion was provided.

The circular fermentation device has a cylindrical fermentation tank in which raw materials such as organic substances are deposited for a certain period of time for fermentation, and an annular running rail is disposed at the upper end of the fermentation tank. A traveling frame is disposed on the upper part of the fermenter so as to extend in the radial direction through the central axis of the fermenter, and a pair of wheels are provided to allow the fermenter to run freely on a traveling rail around the central axis of the fermenter. Furthermore, the traveling frame is provided with a stirring device for stirring the deposits in the fermentation tank. The agitation device is provided with a parallel conveyor frame extending vertically from the running frame toward the bottom of the fermentation tank, and rotation shafts are attached to the upper and lower ends of the conveyor frame, respectively. An endless conveyor strip is rotatably wound between them.

Then, by rotating the endless conveyor strip so that the front side moves from the bottom to the top of the fermentation tank, the raw materials on the front side of the endless conveyor strip are scooped up and moved to the rear of the endless conveyor strip. As a result, when mixing the raw materials in the fermentation tank, the raw materials press the pressure plate provided on the back of the endless conveyor strip, causing the running frame to rotate at the top of the fermentation tank. It's Shino.

``Problems to be Solved by the Invention'' However, in the conventional circular fermentation device, the endless conveyor strip of the stirring conveyance device is attached to the center of the traveling frame so as to extend along the radial direction of the fermentation tank. Therefore, the raw materials stirred by the endless conveyor strip are only moved from the front to the rear of the endless conveyor strip, and cannot be expected to move much in the circumferential direction of the fermenter; Raw materials input (from the center) are not transported to the discharge port (e.g. side wall) of the fermenter in an orderly manner according to the order in which they were input, and some of the raw materials may be discharged earlier than the specified fermentation period. , or some of the raw materials remain inside the fermentation tank for a long time even after the fermentation period 7! There was a fear that it would be left on IT.

This invention was made in view of the above-mentioned problems, and it is possible to reliably move the raw materials input from the input port toward the discharge port according to the order in which they were input inside the fermentation tank, and also to It is an object of the present invention to provide a circular fermentation device capable of fermenting raw materials by retaining them in a fermentation tank according to a specified fermentation period.

rs9R" In order to achieve the above object, the present invention provides a fermentation tank having a cylindrical side wall, and a fermentation tank having both ends on a rail laid annularly along the side wall of the fermentation tank. A traveling frame is constructed so as to be freely movable and rotates on the rail around the center axis of the circular fermentation tank, and a stirring conveyance device attached to the traveling frame and stirring the sediment accumulated in the fermentation tank. The stirring and conveying device is provided with an endless belt strip that rotates in a direction in which the surface in the traveling direction rises between the vicinity of the center of the traveling frame and the vicinity of the side wall of the fermentation tank. The rotating shaft of the belt strip is arranged to be horizontally moved in parallel by a predetermined distance with respect to the center m (a line that overlaps with the diameter) on the plane of the fermentation tank.

Further, the rotary shaft of the endless conveyor strip that rotates in the direction in which the conveyor in the direction of movement rises is a circular shape provided at a position where the rotation axis of the endless conveyor strip moves forward by a predetermined distance in the horizontal direction with respect to the center line on the plane of the fermentation tank. The fermentation tank and the rotating shaft of the endless conveyor strip that rotates in a direction in which the surface in the traveling direction rises are provided at a position horizontally set back by a predetermined distance from the center line on the plane of the fermentation tank. It is best to alternately stack circular fermenters.

"Operation" Since the rotation axis of the endless conveyor strip is moved in parallel in the horizontal direction from the center line of the fermentation tank, the rotation axis of the endless conveyor strip is behind the center line on the plane of the fermentation tank in the direction of travel. When it is moving, the raw material stirred by the rotation of the endless conveyor strip moves from the front side to the rear side of the endless conveyor strip, and is also transferred toward the outside of the circular fermentation tank.

In addition, if the rotation axis of the endless conveyor strip moves forward in the direction of movement from the center line on the plane of the fermentation tank, the raw material stirred by the rotation of the endless conveyor strip It moves from the front side to the back side and is transferred toward the center of the circular fermentation tank.

In addition, by creating a structure in which circular fermentation tanks, in which the rotation axis of the endless conveyor strip moves parallel to the front and rear sides of the traveling direction from the center line, are stacked alternately in three layers, for example, the top circular fermentation tank The raw material that has moved inside the tank from the center to the outside falls to the outside of the second stage circular fermentation tank, and after moving inside the second stage circular fermentation tank from the outside to the center, it is transferred to the first stage. It falls into the center of the circular fermentation tank, is moved from the center of the first stage circular fermentation tank to the outside, and is discharged to the outside.

"Example" The present invention will be described below with reference to FIGS. 1 to 4.

1 to 3 show a first embodiment of the present invention, and reference numeral A in the figures indicates a circular fermentation apparatus of the present invention.

The circular fermentation apparatus A includes a fermentation tank 1 having a cylindrical side wall 1a, an annular rail 2 laid along the upper edge of the fermentation tank 1, and both ends movable on the rail 2. A running frame 3 is constructed and rotates on a rail 2 around the central axis O2 of a circular fermentation tank (2), and the running frame 3 is attached to this running frame 3 and is deposited in the fermentation tank (r).
The main component is a stirring and conveying device 5 that stirs the raw material 4.

The running frame 3 is constructed between a pair of wheel support parts 6.6, and also serves as a fermentation tank! Two frames 7.7 are provided parallel to each other on a plane on both sides of the center line 01, and the center axis O2 of the fermenter 1 is sandwiched between the frames 7.7. In the case of this embodiment, the part surrounded by the frame 7.7 and the reinforcing members 7a, 7a is a raw material input lower b, Approximately half of the traveling frame 3 is provided with an agitation conveyance device 5 that agitates the deposits in the fermentation tank i.

Stirr1! The conveying device 5 has two parallel conveyor frames 8.8 fixed to the outer surface of the reinforcing member 7a and the wheel support portion 6 at the end of the running frame 7, and extending toward the bottom of the fermentation tank. Rotating shafts 9a and 9b are installed at the upper and lower ends of the conveyor frame 8.8. Rotating shaft 9
a, 9b, the central axes Oa, Ob are horizontally translated by a distance e with respect to the center line Oy on the plane of the fermenter (see Fig. 3), and these rotation axes 9a, 9b
An endless conveyor strip IO is wound between them. The endless conveyor strip 10 has a flat par 1 of a predetermined length (in this embodiment, between the reinforcing member 7a and the wheel support part 6a).
0a.

The flat pars 10a, 10a, .
. . . On the outer surface side, there is a blade member type I, the tip of which protrudes outward, 11. ... are fixed at regular intervals in the horizontal direction. Further, the blade members 11, It, . . . are fixed to each flat par 10a with their positions sequentially shifted in the vertical direction, thereby covering the entire surface of the endless conveyor strip IO.

In addition, by appropriately selecting the number and mounting distance of the blade members 11, the load applied to the endless conveyor strip 10 can be adjusted appropriately! 1 and M sections, and the deposit 4 can be efficiently stirred and conveyed.

The agitating and conveying device is configured such that the endless conveyor strip 10 on the side facing the traveling direction of the traveling frame 3 (in the present embodiment, the arrow X direction) is prevented from rotating upward. A drive device (not shown) is provided for transferring the deposit 4 to the rear side of the endless conveyor strip 10,
A blade member is disposed on the rear side of the endless conveyor strip 10 in parallel with the endless conveyor strip weight 0! A pressure receiving plate 12 is provided at a position slightly apart from the tip of the frame 7 for receiving deposits transferred by the endless conveyor strip 0.
Fixed.

Note that the symbols + 5a, I 5b, and I 5e in the figure are conveyors for conveying raw materials such as organic substances into the circular fermentation tank 2, 16 is a hopper, and 17 is a drive device for the conveyor.

Next, the effect on the circular fermentation apparatus according to the present invention configured as described above will be explained.

After being conveyed by the conveyors 15a, 15b, 15c, the raw material 4 introduced into the center of the fermentation tank 1 is deposited in the fermentation tank and becomes compost while fermenting. The sediment 4 is moved by an agitation conveyance device 5 that rotates within the fermentation tank 1 at a rate of one rotation per day (that is, by a blade member 9 that moves as the endless conveyor strip 10 rotates).
9. ), the particles are scraped up from the bottom to the top, and then fall to the rear of the pressure receiving plate 12 and accumulate. Then, when the deposit 4 accumulated on the back surface of the pressure receiving plate 12 reaches a certain amount,
The pressure-receiving plate 12 is pushed forward by the combined force of the heavy pressure of the deposit 4, thereby rotating the traveling frame 3 above the fermentation tank 1 and moving the stirring conveyance device 5 connected thereto forward. Therefore, the traveling frame 3 does not require a driving source for traveling, and the initial cost and running cost of the device can be reduced.

In addition, as shown in FIG. 1, the distance between the front inner end surface of the endless conveyor strip 10 and the central axis Oz of the fermentation tank is a.
, the distance ' from the front side of the endless conveyor strip 10 to the rear side of the pressure receiving plate 12 is b1, and the distance between the inner end surface on the rear side of the pressure receiving plate I2 and the central axis Oz of the fermentation tank is C, then the endless conveyor Rotation axis 9a of striate body IO, central axis Oa of OL+,
Since OL+ has moved by a distance of 0 from the center line Oy of the fermentation tank 1, the raw material I14 in the fermentation tank i is agitated with the rotation of the endless conveyor strip 10, and is also When moving from the side to the rear side,
It will be transferred to the outer circumferential side by a predetermined distance (ca) from the central axis O2. In this embodiment, the raw materials undergo a fermentation period of about 17 days in the fermentation tank 1, and then become fertilizer for the product and are discharged to the outside from an outlet (not shown) formed on the side wall 1a of the fermentation tank. It has become.

In this way, according to the circular fermentation apparatus A of this embodiment, fj
l rl! The rotation axis Oa, 01) of the transport device 1O is at the center #! of the fermentation tank 1! Since it is provided parallel to the distance e from itOy in the horizontal direction, the sediment is agitated when it is conveyed from the front to the rear by the endless conveyor strip 10, and is also moved toward the outer periphery of the fermentation tank 1. The conveyor is reliably transferred by a predetermined distance, and the distance from the front side of the endless conveyor strip 10 to the rear surface of the pressure receiving plate 12 (dimension b), the arrangement position gt (dimension o), and the rotation inside the fermenter i By appropriately changing the number of times the fermentation is performed, the period during which the raw material 4 remains in the fermentation tank i, that is, the fermentation period, can be controlled.

Next, a modification to the circular fermentation apparatus shown in the first embodiment will be explained.

First, as shown by broken lines in FIGS. 1 and 2, the endless conveyor strip 10 is placed on the back side of the endless conveyor strip 10.
Hopper etc. 2 that receives the deposits transferred to the back side by
Belt conveyors 21a and 21b are provided with 0 and transport the sediment received by the hopper etc. 20 to the center of the fermentation tank 1.
By providing this, it is possible to circulate the sediment that has been fermented and turned into almost product compost into the fermentation tank as a member.

Further, the rotating shafts 9 a and 9 b of the endless conveyor strip IO of the stirring conveyance device g15 are horizontally moved by a distance C from the center line oy of the fermentation tank 1 in the direction in which the endless conveyor strip 10 moves. For example, by the endless conveyor strip 10, a
When the raw material in the fermenter 1 is stirred, the raw material can be transferred a predetermined distance from the outer periphery of the fermenter 1 toward the center. In this case, the raw material input port may be provided at the outer periphery of the fermentation tank, and the product discharge port may be provided at the center of the fermentation tank.

Further, a hopper 20 or the like is provided on the back side of the endless conveyor strip 10 to receive the deposits 4 transferred to the back side by the endless conveyor strip IO, and the deposits received by the hopper 20 or the like are fermented. Tank! If a belt conveyor is provided for transporting the fermented material to the outer periphery of the fermenter, the fermented deposits, which are essentially composted products, can be circulated in the fermentation tank as a member.

Next, a second embodiment of the circular fermentation tank shown in the above embodiment will be described using FIG. 4. In this embodiment, the same elements as those shown in the previous embodiment are denoted by the same reference numerals, and the explanation thereof will be omitted.

This circular fermentation tank has the circular fermentation tank shown in the first embodiment MJ inside the building H, stacked on several floors, and each floor Fl, F2. Circular fermentation tank AI installed every F'3
, A2. A stirring conveyor installed inside A3! The rotation axes 9a, 9b of the rotor are provided at each level so as to be alternately moved forward or backward from an arbitrary center line on the plane of the circular fermentation tank.

In the case of this embodiment, the rotation axes 9a, 9b of the endless conveyor strip IO of the circular fermentation tank AI in the lowest layer F1 are the fermentation tank A! The endless conveyor strip of the circular fermentation layer Δ2 of the second floor F2 is moved to the rear side of the center line 6y on the plane of ! The rotating shafts 9a, 9b of the endless conveyor strip 10 of the circular fermenter A3 of the third floor F3 are moved to the front side of the center line Oy on the plane of the fermenter A2, and the rotating shafts 9a, 9b of the endless conveyor strip 10 of the circular fermenter A3 of the third floor F3 are Lower F1
The rotating shaft 9a of the endless conveyor strip 10 is the same as in the circular fermentation tank AI.

9b has been moved to the rear side of the center line or on the plane.

Furthermore, on the outside of the circular fermentation tank Δ3 installed at the top (in this example, on the third floor), there is a 2N layer circular fermentation tank A2.
A discharge duct 25 is provided to communicate with the ceiling on the outer periphery of the interior and allow the raw materials to fall, and at the center of the bottom of the two-story circular fermentation tank A2, there is a discharge duct 25 that communicates with the ceiling on the outer periphery of the tank. A discharge duct 26 for dropping raw materials is provided on the ceiling. Furthermore, a belt conveyor 24 for conveying raw materials to the center of the circular fermentation tank A3 is provided above the circular fermentation tank A3 installed on the top floor.

And 3Ill configured like this! According to the i-tank circular fermentation tank, the raw materials put into the circular fermentation tank A3 on the top floor (in the case of the present example, the third floor) become deposits inside the fermentation tank 1, and are removed from the inside of the fermentation tank. After moving outward, it falls on the outer periphery of the second-stage circular fermentation tank A2, becomes a deposit inside the second-stage circular fermentation tank A2, moves from the outside to the center, and then further , falls into the center of the first stage circular fermentation tank AI, becomes a deposit inside the first stage circular fermentation tank Δl, is transferred from the center to the outside, and is transferred to the fermentation tank! is discharged to the outside.

Therefore, in the case of the three-tiered circular fermentation tank of this example, the raw materials are moved inside and outside the circular fermentation tank alternately while being transferred to the lower circular fermentation tank. From the top (3 layers) to the bottom layer (I II
I! rff) fermentation tank A3~A! It is only necessary to ferment the raw materials during this period, and the fermentation period in the circular fermentation tanks A3 to AI of each layer can be shortened. In addition, by stacking circular fermenters, it is possible to reduce the area occupied by the land on which the circular fermenters are installed, increasing the efficiency of land use, and eliminating the need for special topography, making it possible to fit into small spaces. This has the effect of easing the locational conditions, such as allowing the installation of a large amount of equipment, and reducing the occupied area, easing the locational conditions, and reducing construction costs.

"Effects of the Invention" As described above, in the circular fermentation tank of the present invention, the stirring conveyance device is disposed between the vicinity of the center of the traveling frame and the vicinity of the side wall of the fermentation tank, and the An endless belt strip is provided that rotates in a direction in which the surface thereof rises, and the rotation axis of the endless belt strip is arranged so as to be moved in parallel by a predetermined distance in the horizontal direction with respect to the center line on the plane of the fermentation tank. Therefore, when the material stirred by the rotation of the endless conveyor strip moves from the 09 side to the rear side of the endless conveyor strip, it is transferred toward the outer periphery or center of the circular fermentation tank. The fermentation period of the raw material in the fermentation tank can be controlled by appropriately setting the spacing and mounting position of the endless conveyor strip and the pressure receiving plate.

Additionally, a bell is provided between the rear side of the endless conveyor strip of the stirring and conveying device and the center or outer circumferential side of the fermentation tank to avoid transferring the sediment transferred to the back side of the endless conveyor strip! - A conveyor may be provided, and the deposits in the fermentation tank can be transferred again to the center or outer periphery of the fermentation tank and used as toast.

Furthermore, by stacking multiple layers of circular fermenters, it is possible to shorten the fermentation period for each circular fermenter, increase the amount of raw materials processed, and make other adjustments as appropriate. The area occupied by the tank can be reduced, which has the effect of reducing equipment costs.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, FIG. 1 is a plan view of a circular fermentation apparatus of the present invention, and FIG.
The figure is a cross-sectional front view of the circular fermenter shown in Figure 1, Figure 3 is a side view of the conveying device used in the circular fermenter, and Figure 4 is a side sectional view of the circular fermenter stacked in multiple layers. be. 9a, 9b...rotating shaft, Oa, Oy...center line, O2...center axis line, 10...endless belt strip.

Claims (2)

[Claims] (1) A circular fermentation device that produces compost by periodically stirring organic raw materials to deposit and ferment them for a certain period of time, including a fermentation tank with a cylindrical side wall and a side wall of the fermentation tank. A running frame is constructed such that both ends are movable on a rail laid in a ring along the top, and rotates on the rail around the central axis of the circular fermentation tank, and a fermentation tank is attached to the running frame. a stirring and conveying device for stirring the sediment accumulated in the fermenter, and the stirring and conveying device has a direction in which the surface in the traveling direction rises between the vicinity of the center of the traveling frame and the vicinity of the side wall of the fermentation tank. An endless belt strip that rotates is disposed, and the rotation axis of the endless belt strip is disposed so as to be horizontally displaced by a predetermined distance with respect to the center line on the plane of the fermentation tank. Circular fermentation equipment. (2) The circular fermentation apparatus according to claim 1, wherein the rotation axis of the endless conveyor strip rotates in a direction in which the surface in the traveling direction rises by a predetermined distance from the center line on the plane of the fermentation tank. A circular fermentation tank installed in a horizontally advanced position,
a circular fermentation tank provided at a position where the rotation axis of the endless conveyor strip rotating in a direction in which the surface in the traveling direction rises is set back in the horizontal direction by a predetermined distance with respect to the center line on the plane of the fermentation tank; A circular fermentation device characterized by alternating stacks.