JP3138208B2 - Waste fermentation treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste fermentation treatment apparatus for efficiently fermenting organic waste and regenerating it into a soil improving material.

[0002]

2. Description of the Related Art A large amount of organic waste such as garbage, food sludge, domestic waste sludge, human waste sludge, sewage sludge, animal dung, etc. is generated daily from cities or rural areas, and accepts this large amount of organic waste. Dump sites cannot be set up as desired due to opposition from the residents or other reasons, and lack of dump sites has become a major social problem. Dumping organic waste into the ocean will lead to marine pollution and will be completely banned in the near future.

[0003]

SUMMARY OF THE INVENTION In order to solve such a problem of a waste dumping place and to save limited resources, a method of recycling a waste is an important issue at present. Recycling equipment for fermenting organic waste and regenerating it into soil amendments already exists.
Since the number of installed units is still insufficient and the installation location is also limited, the disposal capacity to regenerate organic waste into effective compost is large, compact and requires a small installation area, and can be provided at low cost. It is desired to develop a product fermentation treatment device. An object of the present invention is to solve such a problem.

[0004]

In order to achieve the above object, a waste fermentation treatment apparatus according to the present invention comprises a vertically long peripheral wall having an upper end and a lower end closed by an upper wall and a bottom wall, and organic waste and organic waste contained therein. A tube accommodating an aerobic fermentation bacterium, a vertical rotation shaft connected to a rotation driving source and rotating at a low speed in the tube, an organic waste on the bottom wall fixed to the rotation shaft, and fermentation. A lower stirring blade having an inclined surface that pushes bacteria upward, an air discharge tube fixed to the lower stirring blade and having a large number of ejection holes, and an air line communicating the air discharge tube and the blower. In a waste fermentation treatment apparatus provided with a heater for heating the air in the air conduit, and a waste inlet and a treated material transfer port provided at an upper portion and a lower portion of the tube, the air discharge tube is rotated. Almost concentric to the axis and close to the bottom wall Is composed of a plurality of annular tubes which is fixed to the lower stirring blade at a position, a number of the injection holes provided in the respective annular tube is so as to open toward the bottom wall. With this configuration, each squirt of multiple annular tubes
The air ejected from the hole causes organic waste and aerobic
Aerial fermentation bacteria, and furthermore,
Air for organic waste and aerobic fermentation bacteria
Is supplied.

[0005] The air sent from the blower to the air line is jetted.
In order to form an air passage for supplying to each return tube having an outlet, a rotary joint connected to the air conduit is fixed to one end face of the rotary shaft, and a bottomed bottom joint connected to the rotary joint is provided. a hollow hole is provided, a branch pipe which opening is provided on the outer peripheral surface of the rotary shaft communicating with the hollow hole, the branches conduit
Is preferably provided with a connecting pipe communicating with each of the above-mentioned annular pipes . this
With the configuration, the air sent from the blower passes through the rotating shaft
Is distributed to each annular pipe, and all the annular pipes
Qi gushes.

One or more upper stirring blades fixed to the rotating shaft are provided above the lower stirring blade, and the upper stirring blade is provided with an inclined surface for pushing up organic waste. Good. With this configuration, the lower stirring blade
The collected organic waste is further moved upward by the upper stirring blade.
Can be pushed up sequentially.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view for explaining an outline of an entire waste fermentation treatment apparatus, and FIG. 2 is a stirring apparatus attached to a rotating shaft. FIG. 3 is a front view of the blades and the air discharge tube, and FIG. 3 is a plan view of FIG. As shown in FIG. 1, the gantry 1 of the waste fermentation treatment apparatus includes a lower plate 2, a side wall 3 erected on the lower plate 2, an upper plate 4 fixed to an upper end of the side wall 3, Board 2
The leg 5 is installed on the ground (or floor) G.

A tube 6 attached to the upper plate 4 of the gantry 1
The upper and lower ends of a vertically long peripheral wall 7 are closed by an upper wall 8 and a bottom wall 9, and a waste treatment space 10 sealed from the outside is formed inside the tube 6. A heat insulating material 12 is inserted between an outer wall 11 provided on the outer peripheral surface of the peripheral wall 7 and the peripheral wall 7, and an outer bottom wall 13 and a bottom wall 9 provided on the outer bottom surface of the bottom wall 9 are provided.
A heat insulating material 14 is inserted between the heat treatment material and the waste treatment space 10 so as not to be cooled by outside air.

The upper wall 8 of the pipe 6 has a waste inlet 15 for charging organic waste, a water supply opening 16 for attaching a makeup water pipe, and a chimney for removing gas generated in the waste treatment space 10. 17, opening and closing device 19 for opening and closing the opening and closing lid 18
Is provided. On the peripheral wall 7 on the left side of the tube 6, a shutter device 21 for opening and closing the processed material discharge port 20 is provided.
reference).

A bearing 22 is attached to the lower surface of the upper plate 4 of the gantry 1, and a vertical rotary shaft 23 inserted into a hole passing through the upper wall 4 of the gantry 1 and the bottom wall 9 of the tube 6 is attached to the bearing 22. It is rotatably supported. On the lower plate 2 of the gantry 1, a motor 24 serving as a rotation drive source and a speed reducer 25 connected to an output shaft of the motor 24 are installed, and a chain wheel 26 fixed to the output shaft of the speed reducer 25. A chain 28 is wound around a chain wheel 27 fixed to the rotating shaft 23 (see FIG. 1). Therefore, the motor 24
Rotates, the rotating shaft 23 rotates at a low speed.

A two-part boss 29 is fastened to the rotating shaft 23 at a position near the upper surface of the bottom wall 9 of the tubular body 6 by a screw 30, and the boss 29 is prevented from slipping by a key 31. The provided lower stirring blade 32 approaches the upper surface of the bottom wall 9, and the tip of the lower stirring blade 32 approaches the inner surface of the peripheral wall 7 (see FIGS. 2 and 3). The lower stirring blade 32 has an inclined surface that pushes up organic waste and fermentation bacteria near the bottom wall 9 when the rotation shaft 23 rotates.

A spacing piece 33 (see FIG. 1) is attached to the rotating shaft 23 above the lower stirring blade 32.
A two-part boss 35 having upper stirring blades 34 and fastened to the rotating shaft 23 is stacked on the boss 35. The upper stirring blade 34, like the lower stirring blade 32, is provided with organic waste and waste.
Fine fermentation bacteria and aeration and stirring upward and promotes the activity of the fermentation bacteria aerobic.

The rotating shaft 23 is provided with a bottomed hollow hole 36 which is open at the lower end surface, and the hollow hole 36 communicates with a rotary joint 37 fixed to the lower end surface of the rotating shaft 23 (FIG. 1).
reference). A blower 38 having an air inlet 39 is installed on the lower plate 2 of the gantry 1, and an air line 4 on the delivery side of the blower 38 is provided.
0 is connected to the rotary joint 37 via the heater 41 installed on the upper plate 2. Therefore, the air line 40
The air fed inside is heated by the heater 41 to a temperature suitable for the activity of the fermentation bacteria, and is sent to the bottomed hollow hole 36 of the rotating shaft 23.

The bottomed hollow hole 36 of the rotary shaft 23 is provided with two branch pipes 42 which are open to the outer peripheral surface of the rotary shaft 23, and a flange 43 is provided at the tip of the branch pipe 42, respectively. A flange 49 of a connection pipe 48 provided in an air discharge pipe 44 described below is attached to the 43 by a screw 50 (see FIG. 5). The air discharge pipe 44 includes a connection pipe 48.
, A medium-diameter annular tube 46 and a large-diameter annular tube 47 connected to the small-diameter annular tube 45 (see FIGS. 3 and 5).

The three annular pipes 45, 46, 47 are detachably assembled from the four arc-shaped pipes, are substantially concentric with the rotating shaft 23, and are substantially in contact with the upper surface of the bottom wall 9. It is arranged and attached to the lower stirring blade 32 (see FIGS. 2 and 3). Each of the circular pipes of the annular pipes 45, 46, 47 has a large number of ejection holes 5 opening toward the bottom wall 9.
4 are provided.

The small-diameter annular pipe 45 is detachably assembled by two sets of arc-shaped pipes 45a and 45b (see FIG. 3). The arc-shaped pipe 45a has the connection pipe 48 communicating with the hollow hole 36 and the connection pipe 51 fixed to the lower stirring blade 32, and has flanges 52 at both ends (see FIG. 3).

The arc-shaped tube 45b has flanges 53 provided at both ends connected to the flange 52 of the arc-shaped tube 45a by screws. The medium-diameter annular pipe 46 and the large-diameter annular pipe 47 communicating with the connection pipe 51 are similar to the small-diameter annular pipe 45, respectively.
Each is detachably assembled by four arc-shaped tubes (see FIG. 3).

Therefore, when the lower stirring blade 32 stirs the waste and the aerobic fermentation bacteria on the bottom wall 9 while rotating at a low speed, the air supplied to the hollow hole 36 is integrated with the lower stirring blade 32. The small-diameter annular pipe 45, the medium-diameter annular pipe 46, and the large-diameter annular pipe 47 are discharged toward the bottom wall 9 by rotating toward the bottom wall 9 to sufficiently aerate waste and aerobic fermentative bacteria. Air is also supplied to waste and aerobic fermentation bacteria stirred by the upper stirring blades 34.

During the development of the present invention, as shown in FIG. 6, an air discharge pipe 54 'having a jet hole 54 is fixed to the bottom wall 9, and the lower stirring blade 32' interferes with the air discharge pipe 54 '. 55 is provided so as to avoid impurities, but impurities (for example, spoons) mixed in the waste may be
Therefore, in the present invention, the air discharge pipe 44 is rotated together with the lower stirring blade 32 because there is a problem such as being pinched between the lower stirring blade 4 'and the lower blade 4'.

Next, the operation of the waste fermentation treatment apparatus configured as described above will be described. As shown in FIG. 1, the vertical axis of the rotating shaft 23 and the vertical axis of the tube 7 reduce the area occupying the upper plate 4 of the gantry 1. Since the motor 24 and the speed reducer 25 are arranged compactly in 2, the waste fermentation treatment apparatus can be downsized, and the transportation and installation work at the time of installation are facilitated.

On the bottom wall 9, an organic waste and a fermentation bacterium suitable for fermentation and decomposition of organic matter are put, and air supplied from a blower 38 is supplied by a heater 41 while rotating a rotating shaft 23 at a low speed. Is heated to a temperature at which it is activated and is discharged from the ejection hole 54 of the air discharge tube 44 via the rotary joint 37 and the hollow hole 36, and the lower stirring blade 32, the upper stirring blade 34, and the air swelling tube 44 rotate. 23, the organic waste on the bottom wall 9 is stirred upward, and the fermentation bacteria uniformly aerated by the air discharged from the three annular tubes 45, 46, 47 are removed from the organic waste. Proliferate while decomposing to form a bacterial layer on the bottom wall 9.

The decomposed organic substance releases carbon dioxide gas and vapor, and loses moisture to form compost having a reduced volume. On the other hand, organic waste is replenished from the waste inlet 15 and the upper organic waste is stirred by the upper stirring blades 34 to perform a full-scale fermentation process of organic matter.

The moisture and temperature are detected by sensors provided in the tube 6, and the moisture ratio (from 45% to
55%) and the temperature (about 35 ° C. to 55 ° C.). Since the organic waste has a high moisture ratio, the moisture ratio is controlled by the input amount of the organic waste, and the temperature is controlled by the fermentation of the organic matter and the heater 41.

Since the heater 41 is provided on the upper plate 4 of the gantry 1 (see FIG. 1), when air is not supplied to the air pipe 40, sewage is discharged from organic waste in the pipe 6. Does not flow back to the heater 41 or the blower 38 even if the water flows downward.

The fermented organic matter is supplied to the processed material outlet 20.
And returned to farmland as effective compost. The waste fermentation treatment apparatus of the present invention selects a fermentation bacterium and stirs it with a lower stirring blade 32 and an upper stirring blade 34,
From injection holes 54 of the air discharge pipe 44 by supplying air to the fermentation bacteria is activated very efficiently (in practice 24 hours) for processing the organic waste by appropriately controlling the moisture and temperature control I was able to.

[0026]

According to the waste fermentation treatment apparatus of the present invention ,
The following effects are obtained. (1) Waste fermentation treatment apparatus of the present invention, it is possible to reduce the cradle from tube is vertical, can be made compact overall waste fermentation treatment apparatus. (2) For example, when the air discharge pipe is fixed to the bottom wall
Indicates that a foreign object has caught between the air discharge tube and the lower transport blade.
And the lower stirring blades do not rotate.
However, the air discharge tube is substantially concentric with the rotation axis, and
Because it constituted by a plurality of annular tubes which is fixed to Oite lower stirring blade at a position close to the upper surface of the bottom wall, the air discharge pipe
The lower stirring blade will rotate with the lower stirring blade.
Smooth rotation can be ensured.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view for explaining an outline of an entire waste fermentation treatment apparatus.

FIG. 2 is a front view of a stirring blade and an air discharge tube attached to a rotating shaft.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a cross-sectional view of an annular tube constituting the air discharge tube.

FIG. 5 is a front view of a connecting pipe that connects the rotating shaft and the small-diameter annular pipe.

FIG. 6 is a main part front view for explaining a problem when the air discharge tube is fixed to the bottom wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stand 6 Tube 7 Peripheral wall 8 Top wall 9 Bottom wall 15 Waste inlet 20 Processing outlet 23 Rotating shaft 24 Motor 25 Reduction gear 32 Lower stirring blade 34 Upper stirring blade 36 Bottom hollow hole 37 Rotary joint 38 Blower Reference Signs List 40 air pipe 41 heater 42 branch pipe 44 air discharge pipe 45 small-diameter annular pipe 46 medium-diameter annular pipe 47 large-diameter annular pipe 48,51 connection pipe 54 ejection hole 45a, 45b arc-shaped pipe

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B09B 3/00 B01F 7/16 C02F 11/02 C05F 9/02 C12M 1/00

Claims (3)

(57) [Claims] 1. A tube in which an upper end and a lower end of a vertically long peripheral wall are closed by an upper wall and a bottom wall, and a tube body containing an organic waste and an aerobic fermentation bacterium therein; A vertical rotating shaft that rotates at a low speed in the body, a lower stirring blade fixed to the rotating shaft and having an inclined surface that pushes up the organic waste and fermentation bacteria on the bottom wall, and is fixed to the lower stirring blade. An air discharge pipe having a large number of ejection holes, a heater interposed in an air pipe connecting the air discharge pipe and the blower to heat air in the air pipe, and an upper and lower part of the pipe body. waste with a waste inlet provided and treated unloading opening
In the waste fermentation treatment apparatus, the air discharge tube is substantially concentric with the rotation axis, and
At a position close to the upper surface of the bottom wall, the lower stirring blade
A plurality of annular tubes fixed to the root, each annular
The waste fermentation treatment apparatus according to claim 1, wherein the plurality of ejection holes provided in the tube are opened toward the bottom wall. 2. A rotary joint to which the air pipe is connected is fixed to one end surface of the rotary shaft, and a bottomed hollow hole connected to the rotary joint is provided, and the rotary shaft communicates with the hollow hole. setting a branch pipe opening into the outer peripheral surface of the
The waste fermentation treatment apparatus according to claim 1, further comprising a connecting pipe connecting the branch pipe to each of the annular pipes . Above wherein said lower stirring blades, provided one or a plurality of the upper portion攪拌羽roots is secured to the rotary shaft, the
The upper agitating blades are inclined to push organic waste upward.
The waste fermentation treatment apparatus according to claim 1 or 2, wherein a slope is provided .