JP3035290B1 - Organic waste water conditioning equipment - Google Patents

Abstract

An object of the present invention is to provide a device for adjusting the water content of an organic waste, which produces a treated product capable of relatively efficiently producing an organic fertilizer. SOLUTION: An adjusting unit 7 is provided inside a drum 1 for holding and rotating a processed material made of organic waste containing water, and for bringing a processed material falling down with the rotation of the drum 1 into contact with the rotating object. 7 was formed in the shape of a grid, a grid, or a net so that the treated material which had dropped and contacted it was passed further downward and dropped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for controlling the water content of an organic waste for producing a raw material for producing an organic fertilizer from an organic waste such as cattle dung or sewage sludge.

[0002]

2. Description of the Related Art Conventionally, a processed material consisting of organic waste containing moisture such as animal waste or sewage sludge and a drying material are charged into a hollow drum, and the drum is rotated to separate the organic waste and the drying material. By stirring and mixing, the mixture (material mixture) of the organic waste and the desiccant is converted to a water content of about 60%.
A device for adjusting the water content of an organic waste, which is manufactured by adjusting the water content to 65% or less, is known. And the moisture content is about 60
An organic fertilizer is produced by subjecting ~ 65% of the material mixture to aerobic primary fermentation and further anaerobic secondary fermentation of the primary fermented material mixture.

[0003] In other words, the above-mentioned water adjusting device is a device for producing a material mixture (raw material mass of organic fertilizer) having a water content of about 60 to 65% for the primary fermentation. Moves the raw material mass to a dedicated primary fermentation device, and when the primary fermentation is carried out in the moisture adjusting device, the primary fermentation is performed while the raw material mass remains in the moisture adjusting device.

According to the above-mentioned water adjusting device, the organic waste and the desiccant are stirred and mixed into a raw material mass by the rotation of the drum, and the material mixture is transported above the drum during the rotation as a production process of the raw material mass. When the material mixture is dropped, the material mixture falls (reversed falls) to the bottom surface of the drum (the bottom surface when the material mixture is carried upward), and the moisture content is gradually adjusted to produce a raw material mass. Is done.

[0005]

However, in the production of a raw material mass by the above-mentioned moisture adjusting device, the air contained in the material mixture escapes when the material mixture is inverted and dropped onto the bottom surface of the drum. Has a relatively high material density. Thereby, since the primary fermentation is aerobic fermentation, when the density of the raw material mass is high (the content of air is low) as described above, the primary fermentation becomes relatively difficult, and the promotion of fermentation is slow, As a result, there is a disadvantage that the production efficiency of the organic fertilizer is reduced.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an apparatus for adjusting the water content of an organic waste according to the present invention rotates a hollow drum 1 which accommodates and rotates a processed material composed of organic waste containing water. In an apparatus provided with an adjusting portion 7 which is freely supported in a lateral direction and which makes the inside of the drum 1 come into contact with a processing object which falls inside the drum 1 with the rotation of the drum 1, the adjusting portion 7 is dropped. A first feature is that the processed material is formed in a saw-like shape, a lattice shape, or a net shape so that the impacted processed material is passed downward and dropped.

Secondly, a number of small holes 8a are provided in the peripheral wall of the drum 1 between the inner surface of the drum 1 and the inner surface of the drum 1 through a predetermined space for drainage or ventilation, through which water can flow or air can flow. It is characterized in that an inner wall 8 is provided.

Third, a discharge port 18 is provided at one end of the drum 1.

Fourthly, the axial center of the drum 1 is inclined such that the discharge side is lowered so that the processed material supplied is moved in the drum 1 to the discharge side as the drum 1 rotates. Features.

Fifthly, the adjusting section 7 is provided to be inclined with respect to the axis of the drum 1 so as to move the loaded workpiece in the drum 1 to the discharge side as the drum 1 rotates. It is characterized by.

Sixth, an auxiliary drum 31 for receiving the processed material discharged and transferred and adjusting the moisture again on the discharge side of the drum 1.
Are connected.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 are a schematic front view and a schematic left side view, respectively, of an apparatus for adjusting the water content of an organic waste according to the present invention.
The moisture adjusting device has a structure in which a drum 1 having a substantially cylindrical shape is supported by a support portion 2, and can be used to convert organic waste containing water such as cattle dung and sewage sludge and garbage into organic waste. The apparatus has a conventionally known function for producing a lump of raw material (raw material lump) for producing fertilizer.

That is, the above-mentioned organic waste and a desiccant described later are put into the drum 1, the drum 1 is rotated, and the organic waste and the desiccant are stirred and mixed. The apparatus has a conventionally known function of producing a mixture as a raw material mass while adjusting the water content of the material mixture. The raw material mass thus produced is sent to a conventionally known primary fermentation device (not shown) to be subjected to aerobic primary fermentation, and then sent to a secondary fermentation device (not shown) to be subjected to anaerobic secondary fermentation. Produced as organic fertilizer.

In general, the moisture content of the organic waste is about 90%, and the moisture content of the desiccant is about 30%. In the present embodiment, the organic waste: desiccant =
It is set to 1: 1 (weight ratio), and at the start of the moisture adjustment, the moisture ratio of the material mixture, which is a non-uniform moisture ratio, is about 60 to 6%.
The structure is such that the water content is made uniform to about 5% (the water content is adjusted until the water content becomes about 60 to 65%). In other words, the raw material mass to be manufactured is a material mixture having a water content of 60 to 65%.

On the other hand, as described above, the drum 1 has a substantially cylindrical shape, and a ring R is fitted around the outer periphery of the drum 1. On the peripheral surface of the ring R, the support wheel 2 is rotatably and circumferentially in contact with one ring R on both left and right sides, that is, the drum 1 is freely rotatable laterally on the support wheel 2 via the ring R. It is supported by. At this time, the support wheel 2
Is mounted with a sprocket 6 and the sprocket 6 is driven by a motor 9, whereby the drum 1 is driven to rotate by the motor 9.

A flange 2a is provided on the support wheel, and the positioning of the drum 1 in the axial direction is performed by the flange 2a. Hollow shafts 3 and 4 protruding from both end surfaces of the drum 1 and concentric with the center line (axis) of the drum 1 are provided. Inside the drum 1 is an adjusting portion which is elongated in the axial direction. A plurality of agitating screens 7 (see FIG. 3) are fixed to both end faces and are radially plural (120 in the case of the present embodiment).
3) at fixed intervals.

That is, the stirring screen 7 comes into contact with the material mixture which is turned upside down in the drum 1 with the rotation of the drum 1, and as shown in FIGS. And a plurality of vertical and horizontal rod-shaped members 7a and 7b so as to form a net (grid) at predetermined intervals. In addition, the stirring screen 7 may be formed in a grid shape or a grid shape with a predetermined pitch.

Further, a large number of small holes 8a (see FIG. 5) are formed in the peripheral wall of the drum 1 along the inner surface (inner surface) of the drum at predetermined intervals with respect to the inner surface. A perforated plate 8 such as a punched metal plate or the like is fixed to both end surfaces of the drum 1 as inner walls.

On the other hand, as shown in FIG. 3, a sliding shutter 11 is provided on one end face 1a of the drum 1.
The opening 12 is provided so as to be openable and closable by, for example, the opening 12. The inlet 12 is configured to be connectable to the discharge section 14 of the hopper 13, and the drum 1 is
It has a structure in which organic waste and desiccant can be charged.

The hopper 13 has a charging section 15 for charging the organic waste, a transport spiral 17 for transporting the organic waste input from the charging section 15, and an organic waste transported by the transport spiral 17. This is a conventionally known device including the above-described discharging unit 14 for discharging, and a detailed description is omitted.

The other end face 1b of the drum 1 is also provided with a discharge port 18 which can be opened and closed by a slide type shutter 16 or the like, through which the discharge port 18 is opened (the discharge port 18 is opened). The crushed raw material mass can be taken out. In addition, a discharge device (not shown) provided with a transfer spiral for transfer may be attached to the discharge port 18 to discharge the raw material lump through the discharge device. At this time, the shutter 16 has a structure supported on the outer surface side of the end face 1b so as to be slidable in the circumferential direction.

Further, a heating device 19 for blowing hot air into the drum 1 is provided on the end surface 1a side of the drum 1, and the temperature inside the drum 1 is reduced by the heating device 19 to the temperature of the raw material mass. The fermentation apparatus is configured such that the raw material mass starts fermentation to some extent before being sent to the fermentation apparatus, and can be adjusted to a temperature that promotes primary fermentation.

At this time, as shown in FIG. 3, the heating device 19 has a structure in which a heater 22 is arranged on the upper side of the air duct 21 and a fan 23 is arranged on the upper side of the heater 22. When the fan 22 is heated from the upper side of the heater 22 and the fan
(The lower side of the ventilation duct 21) has a structure in which warm air is exhausted. The heating device 19 is supported on the ground as shown in FIGS. 1 and 2, and a ventilation duct 21 is inserted into one shaft 3 so that the heating device 19 has a temperature of about 60 ° C.
It is configured to blow hot air of 0 ° C.

A tubular pipe member 26 is connected to the tip (lower end) of the blower duct 21 via a branch member 24, and the above-described warm air is sent through the pipe member 26. The pipe member 26 is branched into a predetermined number (two in this embodiment) by the branch member 24. As shown in FIG. 5, a plurality of air (warm air) outlets 27 are formed in each pipe member 26, and a gap between the perforated plate 8 and the inner peripheral surface of the drum 1 is formed. Space), the pipe is provided so as to face the center of rotation.

As a result, the warm air from the heating device 19 is sent into the pipe member 26 in the drum 1 and is injected into the drum 1 from the outlet 27 of the pipe member 26 through the perforated plate 8.
The temperature in the drum 1 is adjusted. Since the other shaft 4 is hollow as described above, the inside of the drum 1 is evacuated, and the temperature inside the drum 1 is set and adjusted by the above air circulation.

With the above-described structure, in order to produce a raw material lump of organic fertilizer, the water content of feces, sewage sludge, garbage and the like is reduced to about 9 in the drum 1 through the input hopper 13 as in the conventional case.
0% of organic waste and already completed organic fertilizer, sawdust, bran and other drying materials having a moisture content of about 30% are charged, warm air is blown from the heating device 19, and the temperature in the drum 1 is increased. By rotating the drum 1 by the motor 9 while adjusting the
The organic waste and the drying material are mixed with stirring, and the raw material mass is produced while adjusting the moisture content of the material mixture as described above.

When the raw material mass is completed, if the raw material mass is subjected to primary fermentation in another primary fermentation device, the raw material mass is taken out of the moisture adjusting device (drum 1), moved to the primary fermentation device, and the raw material mass is removed. When primary fermentation is performed in the drum 1, the primary fermentation is performed while the raw material lump remains in the drum 1, but the raw material lump before or after the primary fermentation is discharged from the drum 1 by opening the shutter 16 and opening the discharge port 1.
The opening 8 can be performed through the outlet 18 by opening the opening 8.

At this time, the shutter 16 is connected to the end face 1 of the drum 1.
b, slides on the outer surface side to open and close the discharge port 18. Therefore, opening and closing of the shutter 16 does not hinder rotation of the drum 1, and the shutter 1 is rotated while rotating the drum 1.
6 can be slid to discharge the raw material mass (before or after the primary fermentation).

On the other hand, in the drum 1, the material mixture conveyed upward by the rotation of the drum 1 reversely falls downward, but the stirring screen 7 in the drum 1 once abuts the material mixture, and further moves downward. Through the bottom (the bottom side when the material mixture is being carried upwards)
The material mixture is pulverized and granulated by a mesh-like, saw-like or lattice-like stirring screen 7 while being adjusted in water content (drying or equalization of water content) to be a raw material mass. At this time, since the material mixture is granulated as described above during the moisture adjustment, the raw material mass sufficiently contains air.

The air has the property that the aerobic fermentation of the raw material mass proceeds easily, whereby primary fermentation and secondary fermentation of the raw material mass smoothly proceed, and an organic fertilizer is produced relatively efficiently. . At this time, the stirring screen 7 may be brought into contact with the material mixture so as to be granulated during the stirring and mixing. Therefore, in this embodiment, the stirring screen 7 is formed in a grid (net) shape or a grid shape. It may be a shape in which both of the shape of a grid are mixed, and the dependence of the air content of the raw material mass on the grid or the pitch of the glove is small.

The water discharged from the material mixture is discharged from the perforated plate 8 (small holes 8a) into the space between the perforated plate 8 and the inner surface (inner peripheral surface) of the peripheral wall of the drum 1, and the perforated plate 8 8 so as not to return to the material mixture side located inside. That is, the space between the perforated plate 8 and the inner surface of the peripheral wall of the drum 1 is a space for drainage or ventilation,
By forming a small hole (not shown) in the peripheral wall of, the water can be easily drained to the outside.

In the present embodiment, since the temperature inside the drum 1 is adjusted by the heating device 19 as described above, the temperature inside the drum is stabilized without being greatly affected by the outside air temperature or the like. Thus, the raw material lump can be stably manufactured without being greatly affected by the change in the outside air temperature.

The rotation of the drum is relatively slow,
pm. In addition, when using garbage for organic waste, the stirring screen 7 is provided with a blade (not shown),
The blade may be configured to stir and mix while cutting the organic waste. Also, a temperature sensor or the like is attached to the drum 1 side to manage the temperature inside the drum 1, and based on this data, the heating device 19 is actively controlled to
It may be configured to perform the temperature management in the inside in more detail.

Since the drum 1 has a cylindrical shape as described above, the size of the apparatus (drum 1) can be easily increased, and the organic fertilizer production processing can be performed on a large scale without taking an unnecessarily large space. However, as shown in FIG. 6, another drum (auxiliary drum) 3 is attached to one end (discharge side) of the drum 1.
1 is connected via a connecting ring 30 or the like, and the raw material mass or the like manufactured by the drum 1 on the upper side (organic waste input side) is sequentially moved to the lower drum 31 side. , Until the end of the primary fermentation of the raw material mass in each drum 1, 31
Alternatively, the production process up to the completion of the secondary fermentation can be performed, and a large-scale, large-volume material can be easily processed.

That is, when the discharge port of the drum 1 on the upper side is opened (opened), the material mixture is set in a predetermined state, for example, when the homogenization of the water content is completed at about 80%, or when the material mixture becomes a raw material mass, By moving the material mixture in accordance with the state of the drum, such as automatically moving to the (lower side) auxiliary drum 31, the moisture adjustment processing of organic waste can be continuously and greatly performed. Can be done on a scale.

In particular, as shown in FIG.
The drums 1 and 31 are tilted and supported such that the discharge side of the axis of the drums 1 and 31 is lowered so as to be sequentially moved to the discharge port side, so that the material mixture or the raw material is transferred from the drum 1 to the drum 31. The lump can be easily moved without a discharge device, and the raw material lump and the like can be easily taken out from the drum 31.

Even in the case of one drum (the example in FIGS. 1 to 4), the material mixture or the raw material mass can be easily discharged by supporting the drum 1 by inclining so that the discharge side of the shaft is lowered. However, the material mixture charged with the stirring screen 7 is further moved to the discharge port side in the drums 1 and 31 with the rotation of the drums 1 and 31 with respect to the axis of the drums 1 and 31. The same effect can be obtained even if the inclination is provided.

The material mixture can be easily moved by opening both the discharge-side end (end face) of the better drum 1 and the input (input) end of the auxiliary drum 31. As shown in FIG. 6B, a discharge port 32 and a shutter 33 similar to those described above are interposed between the discharge side of the upper drum 1 and the input side of the lower drum 31, and In such a predetermined state of the material mixture, the shutter 33 may be automatically opened to move the material mixture from the drum 1 to the drum 31. The automatic opening and closing of the shutter may be adopted on the discharge side when there is one drum.

[0039]

According to the structure of the present invention constructed as described above, since the adjusting portion is provided in the drum, when the drum is rotated to stir and mix the processed material, the processed material to be rolled is reduced. When it is carried upward by the rotation of the drum and falls downward and falls, the processed material once contacts the adjustment unit,
Since it is further passed down and collides with the bottom surface, the water is adjusted while being granulated by the adjusting unit, and the raw material (raw material mass) of the organic fertilizer is obtained.

For this reason, the completed raw material mass contains air sufficiently, and the air has a property that the aerobic primary fermentation easily proceeds by this air, and the primary fermentation of the raw material mass smoothly proceeds. There is an advantage that an organic fertilizer is produced efficiently and efficiently. In particular, in the case where the adjusting section is in a net shape, in a grid shape, or in a grid shape, granulation is efficiently performed, and the amount of air contained in the raw material mass increases.

Further, an inner wall provided with a plurality of small holes is provided in the peripheral surface of the drum through a predetermined space for drainage or ventilation between the inner wall of the drum and the inner surface of the drum. Moisture generated (discharged from the material) accumulates in the space, and the water does not return to the processing object located in the inner wall, so that the moisture adjustment is smoothly performed, and the air circulation is also smoothly performed through the space. There is also the advantage that it can be done.

By forming a discharge port at one end of the drum for discharging the processed material in the drum, it is easy to take out the processed material. However, it is possible to lower the axis of the drum so that the discharging side is lowered. By inclining the drum and supporting the adjusting portion with respect to the axis, the processed material can be taken out from the discharge port side without providing a discharge device or the like.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a moisture adjusting device.

FIG. 2 is a schematic side view of a moisture adjusting device.

FIGS. 3 (a), (b) and (c) are a front sectional view and a left and right side view of a moisture adjusting device.

FIGS. 4A and 4B are a front view and a side view of a stirring screen.

FIGS. 5A and 5B are a cross-sectional view and a side view of a piping member.

FIGS. 6A and 6B are a side sectional view of the drum in a state where the drums are continuously connected and a sectional view of the drum end face when a shutter is employed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drum 7 Stirring screen (adjustment part) 8 Perforated plate (inner wall) 18 Discharge port 31 Auxiliary drum

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) C02F 11/00-11/20 B09B 3/00 C05F 1/00-17/02 B01F 9/00-13/10

Claims (6)

(57) [Claims] 1. A hollow drum (1) rotatably supporting a hollow drum (1) for containing and rotating a processed material composed of organic waste containing water, and a drum (1) having a hollow inside the drum (1). In an apparatus provided with an adjusting section (7) for abutting a processed object which is inverted and dropped in the drum (1) with rotation, the processed object dropped and abutted on the adjusting section (7) is passed further downward. A device for adjusting the water content of organic waste, which is formed in the shape of a grid, a grid or a net so that it can be dropped. 2. In the peripheral wall of the drum (1), a number of small holes (8a) are provided between the inner surface of the drum and the inner surface of the drum via a predetermined space for drainage or ventilation, and through which water can flow or ventilate. 2. The organic waste moisture control device according to claim 1, further comprising a perforated inner wall. 3. A discharge port (18) at one end of the drum (1).
The organic waste moisture adjusting device according to claim 1 or 2, further comprising: 4. An axis of the drum (1) is inclined such that the discharge side is lowered so that the input processed material is moved to the discharge side in the drum (1) as the drum (1) rotates. 4. The apparatus for adjusting the water content of an organic waste according to claim 1, 2 or 3 at least. 5. An adjusting unit (7) is provided with respect to the axis of the drum (1) so that the input processed material is moved to the discharge side in the drum (1) in accordance with the rotation of the drum (1). The apparatus for adjusting the moisture content of organic waste according to claim 1, 2, 3, or 4, which is provided at an angle. 6. An auxiliary drum (3) for receiving the processed material discharged and transferred and adjusting the moisture again on the discharge side of the drum (1).
6. The organic waste moisture control apparatus according to claim 3, wherein 1) is connected.