JPS641434B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a composting apparatus equipped with a scattering prevention device for compost such as municipal waste, sewage sludge, livestock waste, agricultural waste and other organic waste. It is related to.

[Prior art]

Composting organic waste is usually done by storing the materials (composting raw materials) for a certain period of time, stirring at appropriate time intervals while supplying an appropriate amount of air from the floor surface, and turning the materials over. This is done by promoting aerobic fermentation. Furthermore, although air supply from the floor may be omitted, stirring is an essential operation for reasons such as homogenization of the material, uniformity of aeration, and substantial expansion of the aeration surface area.

In order to perform the composting operation rationally, it is desirable to have a function of transferring the material in a fixed direction at the same time as the stirring, and for this purpose, a stirring device having a rotating paddle that can perform stirring and transfer at the same time is required.
Inventions such as USP4410348 have been made.

The invention moves a rotating paddle-type stirring device, which has the function of transporting materials in approximately the same direction by stirring, along a zigzag-shaped trajectory having components in both directions, approximately perpendicular and parallel to the direction in which the materials are transported. This allows all the materials to be stirred and transferred.

That is, the principle of such a composting operation will be explained with reference to FIGS. 10 and 11. Reference numeral 101 denotes a rotating paddle type stirring device which has both the function of locally transporting the material by a short distance (referred to as material movement distance) in the direction of arrow 102 and the function of stirring in reverse directions. The stirring device 101 has a compost outlet end 10.
Start moving from the starting point 104 in the vicinity of 3, and follow the arrow 10
As shown, arrows 105 and 105' indicate lateral movement, which is approximately perpendicular to the direction of compost transport of 2, and arrows 106 and 106', which indicate short distance movement in the longitudinal direction, which is parallel. material inlet end 1.
When reaching the end point 108 in the vicinity of 07, all the materials are transferred by the stirring operation of the stirring device 101 as described below, and the composting raw materials are transferred from J→discharge, I→J,
The material moves sequentially from H to I, .

In this way, by sequentially moving the material by stirring and transferring the material by moving the rotary paddle-type stirring device 101 in the transverse direction in the direction opposite to the compost transfer direction indicated by the arrow 102, the fermentation tank 111 having a rectangular fermentation area is formed. The entire amount of material inside is transferred while being turned and stirred, and sequentially discharged from the compost outlet end 103 to the discharge device 114.

When the stirring device 101 reaches the end point 108, it stops stirring, and from the door 110 provided in the partition wall 109,
Move to a passage 112 (no material exists) separated from the fermenter 111 by a partition wall 109, and follow the arrow 11.
3 and reaches the starting point 104 again.

This rotary paddle type stirring device 101 is the 11th
As shown in FIGS. 12 to 12, it is composed of a rotating paddle 122 suspended from a body 121 that can run in the lateral direction of the fermenter 111 on a frame 120 that runs in the vertical direction of the fermenter 111. The material is thrown and moved backward in the direction of arrow 102 with respect to the inner longitudinal direction (arrow 115).

Also, as a composting device, a fermenter 1 surrounded on three sides by two side walls 2, 3 and one end wall 4 and having a longer end wall than the side walls, or a fermenter 1 shown in FIGS. 13 to 15
As shown in the figure, the inside of the fermentation tank 1 is partitioned into a plurality of partitions 5 parallel to the side walls in order to cope with large fluctuations in materials. A running beam 8 that runs along roads 6 and 7 and moves parallel to the end wall 4;
A stirrer 9 has a rotary paddle 11 which is movably installed on the top and whose rotating surface is substantially perpendicular to the end wall 4 and can be turned forward and backward, suspended from a support 10, and a stirrer 9 which is installed outside the tank on the opposite side of the end wall 4. There is also a system in which the composting material in the fermentation tank 1 is moved in a zigzag manner to stir the composted material within the premises.

[Problem that the invention seeks to solve]

However, in the composting apparatus shown in FIGS. 13 to 15, the composted material turned back by the rotary paddle 11 not only scatters onto the moving path 12 and pollutes the surrounding area, but also spills onto the guide path 7. If it reached this point, there was a risk that the normal operation of the traveling beam 8 would be hindered. Therefore, generally the moving path 12
Although the width of the guide path 7 is increased to move the guide path 7 away from the fermenter 1, there is a problem in that the area occupied by the composting apparatus including the guide path 7 increases, which becomes uneconomical.

The present invention aims to solve these problems, accurately prevent the scattering of compost toward the movement path of the agitator, and minimize the area occupied by the entire composting apparatus.

[Means for solving problems]

The present invention provides a traveling beam that runs parallel to the end wall across a fermenter that is surrounded on three sides by two side walls and one end wall and is open on one side, and a traveling beam that is provided on the traveling beam so that it can freely traverse and rotate. A composting device comprising an agitator having a hanging rotating paddle whose surface is substantially perpendicular to the end wall, and a movement passage for the agitator provided outside the tank on the open end side, the open end of the fermentation tank To,
The composting apparatus is characterized in that a scattering prevention cover is formed of a side cover and a front cover and is movable as the traveling beam travels to catch the composted material scattered by the rotating paddle.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. For example, as in the thirteenth illustrated example, it is surrounded on three sides by two side walls 2, 3 (including the partition wall 5) and one end wall 4, and one end is A running beam 8 that moves parallel to the end wall 4 across the open fermenter 1;
Movement of the stirrer 9 in which a rotary paddle 11, which is disposed horizontally on the top and whose rotating surface is substantially perpendicular to the end wall 4, is suspended from a support 10, and the stirrer 9, which is disposed outside the tank on the open end side of the fermenter 1. In the composting apparatus consisting of a passage 12, a scattering prevention cover 20 is provided near the open end of the fermenter 1, as shown in FIGS. 1 to 3. The anti-scattering cover 20 has a side cover 21 and a front cover 22 formed into a U-shape, an arc shape, or other shape suitable for receiving the compost scattered by the rotation of the rotating paddle 11, which will be described later. The height is preferably about the same as the side wall of the fermenter 1.

Further, the scattering prevention cover 20 in this illustrated example is fixed to the running beam 8 by appropriate means, and is configured to move with the running of the running beam 8.
2 has a curved surface near the bottom that matches the shape of the rotary paddle 11, as shown in the second illustrated example, to reduce the accumulation of compost in this part, and
To make it easier to return the composted material into the fermenter 1 when turning the part. In addition, the scattering prevention cover 20 is installed with an appropriate gap between the side wall and the floor of the fermenter 1 to reduce mutual interference. It is also a preferable embodiment to attach a flexible cushion cover 23 made of rubber, brush, etc. to cover the compost to reduce spillage of the composted material.

As a result, the composted material in the fermenter 1 is stirred in a zigzag manner as shown by the arrow in FIG. Guideway 7 by turning
The scattering prevention cover 20 prevents the compost from scattering in this direction. To take out the composted material in the fermenter 1 and to supply the material into the fermenter 1, the agitator 9 is moved sideways to the moving path 12, and then the traveling beam 8 is moved outside the fermenter. However, as the traveling beam 8 moves, the scattering prevention cover 2
Since 0 also moves, there is no problem with the work.

5 to 7 show another embodiment of the present invention, in which the running beam 8 and the scattering prevention cover 20 are not fixed, a fixing lever 24 is provided on the running beam 8, and the scattering prevention cover 20 is attached to the wheel. 25 and a horizontal elongated hole 26 is provided in the front cover 22, so that the fixing lever 24 can move within the horizontal elongated hole 26 and be freely engaged with and disengaged from the horizontal elongated hole 26. For this reason, the stirrer 9
While the inside of the fermenter 1 is being turned in a zigzag manner, the scattering prevention cover 20 is fixed to the side wall by the fixing member 27, and by releasing the fixing lever 24, the inside of the fermenter 1 is turned in a zigzag manner, and the fermentation When the running beam is to be moved out of the tank, the fixing member 27 is removed and the fixing lever 24 is locked, so that the scattering prevention cover 20 moves as the running beam 8 moves.

Note that if the length of the horizontal elongated hole 26 is set to a length corresponding to the distance that the traveling beam 8 travels in one fermenter 1, the fixed lever 24 can be moved without engaging or disengaging like the fixed lever 24. It can be used as a simple guide rod or the like.

FIG. 8 and FIG. 9 show still another embodiment of the present invention, in which the running beam 8 and the scattering prevention cover 20 are not fixed, and the upper part of the side cover 21 of the scattering prevention cover 20 having wheels 25 and the running beam 8 are not fixed. A moving member 28 is provided at a position opposite to that of the beam 8, and as the traveling beam 8 travels outside the fermenter 1, both moving members 28 come into contact and the scattering prevention cover 20 is moved.

〔Effect of the invention〕

As described above, according to the present invention, the scattering of composted material to the moving path side by the rotating paddle in the fermenter is accurately prevented by the scattering prevention cover, the width of the moving path is minimized, and the entire composting apparatus is occupied. This has many beneficial effects, such as the area can be reduced, the scattering prevention cover moves together with the traveling beam, and the compost in the fermenter can be taken out and materials can be supplied smoothly.

[Brief explanation of drawings]

1 is a partial plan view showing one embodiment of the present invention, FIG. 2 is a sectional view taken along the line - - of FIG. 1, FIG. 3 is a view taken along the line - - of FIG. 5 is a partial plan view showing another embodiment of the present invention, FIG. 6 is a sectional view taken along the line -- in FIG. 5, and FIG.
FIG. 7 is a view taken along the line arrow in FIG. 5, FIG. 8 is a side view showing another embodiment of the present invention, FIG. 9 is a view taken along the line arrow in FIG. is an explanatory plan view showing an example of the conventional method, FIG. 11 is a perspective view thereof,
FIG. 12 is an enlarged view of the rotary paddle part, FIG. 13 is a plan view showing another conventional example, and FIG. 14 is the first
3 is a sectional view taken along the line ``-'', and FIG. 15 is a sectional view taken along the ``-'' line in FIG. 13. 1... Fermentation tank, 2, 3... Side wall, 4... End wall, 5... Partition wall, 6, 7... Guide path, 8... Running beam, 9... Stirrer,
DESCRIPTION OF SYMBOLS 10... Strut, 11... Rotating paddle, 12... Moving path, 20... Scattering prevention cover, 21... Side cover,
22...Front cover, 23...Cushion cover,
24... Fixed lever, 25... Wheel, 26... Horizontal elongated hole, 27... Fixing member, 28... Moving member, 10
1... Stirring device, 102... Arrow, 103... Compost outlet end, 104... Starting point, 105, 105'... Arrow indicating lateral movement, 106, 106'... Arrow indicating vertical movement, 107... Material inlet end , 108... End point, 109... Partition wall, 110... Door, 111... Fermentation tank, 112... Passage, 113... Arrow, 114... Ejection device, 115... Arrow, 120... Frame, 121... Body, 122... Rotating paddle.

Claims (1)

[Scope of Claims] 1. A traveling beam that runs parallel to the end wall across a fermentation tank that is surrounded on three sides by two side walls and one end wall and is open on one side, and that is provided on the traveling beam so that it can freely traverse. In the composting apparatus, the composting apparatus comprises a stirrer having a rotating paddle hanging thereon, the rotating surface of which is substantially perpendicular to the end wall, and a moving path for the stirrer provided outside the tank on the open end side. A composting device characterized in that a scattering prevention cover is provided at the open end portion, and is formed of a side cover and a front cover and is movable as the traveling beam travels to catch the scattering of composted material caused by the rotating paddle. 2. The composting apparatus according to claim 1, wherein the bottom portion of the front cover has a curved surface that matches the shape of the rotary paddle.