JP2004267920A - Steel sheet pile fermentation tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fermentation tank with excellent earthquake-proof property and less numbers of welding steps, and capable of being easily constructed. <P>SOLUTION: In this fermentation tank, an organic waste and a compost raw material such as livestock excrement are thrown from above, these are stirred by a stirring impeller while mixing with air, and regarding the compost raw material, fermentation is carried out for several days. Couplings 2 at both ends of a steel sheet pile are combined to form a surrounding wall and a steel beam 4 is fixed to an upper end of the steel sheet pile while stretched around. A rotation shaft 5 turnable against the steel beam 4 and extending below is pivotally supported and stirring impellers 7 are arranged on the rotation shaft at several stages. A discharge belt for discharging the manufactured compost in one direction is provided at a bottom part. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a steel sheet pile fermentation in which a fermenter for fermenting a compost material mixed with wood waste together with organic waste such as raw garbage generated in cities and livestock dung generated on ranches is arranged with steel sheet piles. About the tank.
[0002]
[Prior art]
Conventional fermenters for producing compost are generally cylindrical and some are spherical. These are often horizontal cylinders due to the rotation of the stirring rods located inside.
There is known a vertical fermenter in which a compost material is dropped from the top, an annular plate is fixed to a rotating shaft provided at the center of the fermenter, and the compost material dropped from the top is uniformly distributed. (See Patent Document 1). It is also known to connect a joint to a steel sheet pile and install a revetment wall in order to prevent water leakage from inside using a steel sheet pile (see Patent Document 2).
[0003]
[Patent Document 1] Japanese Utility Model Publication No. Sho 60-28649 [Patent Document 2] Japanese Patent No. 3308070
Fermenters known from such patent documents are generally cylindrical in shape due to strength, durability, etc., and are formed by welding. It was equipped with a stirring blade arranged, and in the vertical type, one or two units were common. However, with such a method, sufficient compost could not be produced, and welding work of the peripheral wall in assembling the fermenter was difficult.
[0005]
[Problems to be solved by the invention]
Fermenters for producing such conventional compost are known to be formed into a cylindrical shape by connecting several sheets of steel or the like by welding, and many proposals have been made, but each has advantages and disadvantages. In a conventional fermenter, a kiln structure formed in a cylinder is generally used, but in a case where a cylinder is arranged in a vertical form, it is manufactured by welding a cylindrical form with a steel plate. This welding work was very difficult.
An object of the present invention is to provide a steel sheet pile fermenter that has a small number of welding steps and can be easily constructed and has excellent earthquake resistance.
Another object of the present invention is to provide an easily assembled steel sheet pile fermenter that is excellent in earthquake resistance and produces an odorless and sanitary fertilizer by mixing livestock dung or litter and wood chips that are generated in large quantities on a ranch or the like. That is.
[0006]
[Means for Solving the Problems]
The above object of the present invention can be achieved by the following configurations.
Compost materials such as organic waste, livestock dung, etc. are put in from the upper part, and these are mixed and stirred with air by a stirring blade, and fermentation tanks that ferment the compost materials for several days are combined with steel sheet pile joints. An enclosing wall is formed, a steel beam is fixed to the steel sheet pile by being stretched over the upper end thereof, the steel beam is rotatable, and a rotating shaft extending downward is supported, and a stirring blade is attached to the rotating shaft. This is a steel sheet pile fermenter with several stages and a discharge belt at the bottom for discharging the produced compost in one direction.
[0007]
SUMMARY OF THE INVENTION The object of the present invention is to form a peripheral wall by connecting joint portions arranged at open ends of a steel sheet pile having a trapezoidal cross section with one side open to form a peripheral wall, and connecting four corners with corner members. A peripheral wall is formed around the periphery of the steel sheet pile, and a plurality of agitators are rotatably supported by a rotating shaft that is rotatably supported by a steel beam stretched on a ceiling and extends downward inside the steel sheet pile peripheral wall. Arrange wings, mix compost raw materials such as organic waste, livestock dung from farms, litter, etc. from the ceiling part and let it fall, perform sufficient agitation and aging inside this, and generate the compost from the bottom of this tank. This can be achieved by the configuration of a steel sheet pile fermenter that is configured to discharge.
[0008]
In addition, the problem is that the steel sheet pile is filled with a waterproofing agent in the joint portions at both ends thereof, and the steel sheet pile is wrapped around the peripheral wall of the steel sheet pile as a reinforcing member at right angles to the longitudinal direction of the steel sheet pile. This can be achieved by a configuration in which H steel is arranged and welded so that the peripheral wall is reinforced.
[0009]
Further, the problem is that the steel sheet pile is connected to form a surrounding wall, a solid or liquid mixture such as organic waste, livestock droppings, bedding, and a stirring tank, and the organic waste and wood chips are mixed. The mixed processed product in a moromi state is mixed, and a hopper for introducing the processed mixture, and a ventilation path communicating with a blower for introducing air, a rotating shaft of a cylindrical tube rotatably supported by an upper beam plate are provided. And a rotating shaft rotatably disposed inside thereof, a plurality of stirring blades fixed to the rotating shaft in multiple stages at predetermined intervals and provided with an air supply pipe communicating with the air passage, A conveyor belt that conveys the compost accumulated outside to the outside, a casing that connects the steel sheet piles to form an enclosure, connects an exhaust pipe that collects gas generated by the fermentation process, and a casing that is shut off from the outside air. Prepared and transported from outside The mixture of organic wastes is introduced from the hopper disposed at the top, and the air sent by the blower is blown out from the air supply pipes of the stirring blades provided in several stages through the inside of the cylindrical tube of the rotating shaft. Is rotated to agitate the mixture to promote fermentation, and the composted organic waste falling to the bottom is discharged to the outside by the conveyor belt.
[0010]
The object of the present invention is to provide a configuration in which the stirring blades of the rotating shaft are arranged so as to overlap with the stirring blades of the adjacent rotating shaft, and the stirring blades of each stage rotate in the same direction or the opposite direction, and the adjacent rotation This can be achieved by a fermenter in which the stirring blades of the shafts are arranged so as to overlap with each other, and the rotating shaft in which the stirring blades are joined in several stages is arranged in six groups.
[0011]
In the steel sheet pile fermenter of the present invention, since the rotating shaft is only supported by the upper beam, the rotating shaft to which the stirring blade is fixed rotates in a suspended state. The rotation of the stirring blade is not hindered by the amount of the organic waste mixture in the fermenter. Further, since six rotating shafts are arranged in the fermenter instead of one rotating shaft, sufficient treatment of organic waste can be performed with one fermenter.
In this fermenter, microorganisms and organic bacteria that are useful for decomposing and corroding organic substances such as aerobic fiber-decomposing bacteria, radioactive bacteria, yeasts, and photosynthetic bacteria contained in livestock manure are mixed. Decomposition of organic matter is promoted by mixing, and it becomes an odorless and harmless fertilizer. The compost thus obtained can be used by mixing it with soil and dispersing it on the soil surface in the same manner as ordinary compost. Since this compost is odorless, it can be packed in a bag and marketed, and this compost can be sprayed and used as a fertilizer for vegetables and flowers.
[0012]
According to the present invention, six rotating shafts are arranged in one fermenter, and a large amount of organic waste and wood chips supplied from a hopper provided at an upper portion can be treated in a moromi state. A fermenter with a rotating shaft equipped with a base stirring blade is connected from the first tank to the sixth tank, and the fermenters in the fermenters are repeatedly used to perform the processing fermentation in turn. Sufficient drying treatment can be performed, and smooth fertilizer can be manufactured. This compost can be bagged and marketed.
For example, it is possible to further decompose and dry by treating those charged in the first tank, the second tank, and the third tank in one month, and then throwing them back into the fourth and fifth tanks.
[0013]
The steel sheet pile fermenter of the present invention uses an electric motor or a hydraulic drive motor as a drive source for the rotating shaft, and the electricity required for this drive is a power generation device using exhaust gas such as methane gas generated in the fermenter. Can supply power.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a steel sheet pile fermenter according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is an explanatory perspective view of one embodiment of the steel sheet pile fermenter according to the present invention. FIG. 2 is an AA sectional top view showing a state in which two fermenters of the steel sheet pile fermenter of the present invention are connected in an embodiment. FIG. 3 is a partially cutaway side view of FIG. FIG. 4 is a perspective view of a steel sheet pile forming the steel sheet pile fermenter of the present invention. FIG. 5 is an explanatory view showing a joint structure of a steel sheet pile.
[0015]
A steel sheet pile fermenter of the present invention will be described based on an embodiment shown in the drawings.
As shown in FIGS. 1 and 4, adjacent steel sheet piles 1 are engaged with joints 2 and 2 formed on both side edges of a trapezoidal steel sheet pile 1 having an open side to form a peripheral wall. . The joint 2 portion of the steel sheet pile 1 is filled with a water-repellent material such as a synthetic resin as described later. A pillar 6 is provided at a corner of the peripheral wall of the steel sheet pile 1 and a cut surface of the steel sheet pile 1 is welded. The H steel 3 is circulated so as to be orthogonal to the outer position of the steel sheet pile 1 forming the enclosure, and both ends of the H steel 3 are welded at corners, and the H steels 3 are arranged at predetermined intervals. A steel beam 4 is erected at the upper end of the peripheral wall of the steel sheet pile 1, and a rotating shaft 5 is supported by the steel beam 4.
[0016]
Stirring blades 7 are fixed in several stages to a portion extending below the rotating shaft 5 from the upper end supported by the steel beam 4. A passage 8 for air ejected from the stirring blade 7 is formed inside the rotating shaft 5, and air sent from an air supply device arranged outside the tank passes through this passage and is provided in the stirring blade 7. It is designed to spout from many spouts.
A sieve plate is slidably installed at the lower end of the steel sheet pile 1 on which the peripheral wall is formed, and a discharge belt is arranged below the sieve plate.
[0017]
The steel sheet pile fermenter constructed as described above can be formed by inexpensively engaging the commercially available steel sheet pile 1 more easily than the conventional steel sheet pile fermentation tank having a peripheral wall formed in a plate shape. Not only can it be made, but also the peripheral wall can be formed firmly, and it is excellent in earthquake resistance. Moreover, since the rotating shaft 5 having several stirring blades 7 is provided in the fermenter formed of steel sheet pile, the compost raw material can be sufficiently mixed.
As shown in FIG. 1, the fermenter of the present invention has six rotary shafts instead of one rotary shaft in the fermenter. Compost raw materials can be processed. By fermenting and aging in this fermenter for several days, it is possible to completely remove malodors such as livestock dung, and to obtain a fertilizer that is odorless and has high nutritional value.
The steel sheet pile fermentation layer of the present invention is particularly constructed with the steel sheet pile 1 and thus has excellent earthquake resistance and can be formed into a sufficient waterproof structure.
[0018]
As the water-repellent material used for the joint 2 portion of the steel sheet pile 1 of the fermenter of the present invention, a generally known synthetic resin can be used, but a water-absorbing expandable composition is particularly preferable. For example, a mixture of urethane resin and sand, gravel, crushed stone, natural aggregate, or the like is poured into the engagement portion of the joint 2 and used. Since such a material absorbs water and expands, sufficient water repellency can be obtained.
[0019]
Such a water-absorbing expandable composition can withstand a water pressure of 5 to 6 kgf / cm ^2, and thus can prevent long-term water leakage in a steel sheet pile fermenter. Therefore, it is suitable for compost production.
[0020]
【The invention's effect】
The steel sheet pile fermenter of the present invention can be made into a compost in a short period of time by mixing a large amount of organic waste such as livestock manure or urban garbage generated in livestock facilities that pollute the local environment with wood chips and wood chips. . In particular, since this fermenter has a peripheral wall formed by engaging a joint portion of a steel sheet pile, the fermenter can be easily assembled, and a fermenter excellent in earthquake resistance can be constructed.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view of one embodiment of a steel sheet pile fermenter according to the present invention.
FIG. 2 is a side view showing a state in which two fermenters of the steel sheet pile fermenter of the present invention are connected in one embodiment.
FIG. 3 is a cross-sectional top view taken along line AA of FIG. 2;
FIG. 4 is a perspective view of a steel sheet pile constituting the steel sheet pile fermenter of the present invention.
FIG. 5 is an explanatory view showing a joint structure of a steel sheet pile used in the steel sheet pile fermenter of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Steel sheet pile 2 Joint 3 H steel 4 Steel beam 5 Rotating shaft 6 Column 7 Stirring blade

Claims (5)

From the upper part, organic waste, livestock manure and other compost raw materials are charged, and these are mixed with air by a stirring blade and stirred.
The joints of steel sheet piles are combined to form a surrounding wall, and a steel beam is fixed by being stretched over the upper end of the steel sheet pile, and the steel beam is rotatable, and a rotating shaft extending downward is pivotally supported. A steel sheet pile fermenter comprising a plurality of stages of stirring blades arranged on the rotating shaft, and a discharge belt at the bottom for discharging the produced compost in one direction. The peripheral wall is formed by engaging and connecting the joint portions arranged at the open ends of the steel sheet pile having a trapezoidal cross section with one side open, forming a peripheral wall, connecting the four corners with corner members, surrounding the periphery, and forming the peripheral wall. In the interior surrounded by the steel sheet pile peripheral wall, a plurality of agitating blades are arranged on a rotating shaft extending downward while being rotatably supported by a steel beam stretched on the ceiling, and from the ceiling portion. Mix compost materials such as organic waste, livestock dung and litter, and let them fall.
A steel sheet pile fermentation tank characterized in that sufficient stirring and aging are performed inside the tank, and the generated compost is discharged from the bottom of the tank. The steel sheet pile fermenter according to claim 1 or 2, wherein a water stopping agent is filled in joint portions at both ends of the steel sheet pile. The steel sheet pile is stretched around an outer peripheral wall of the steel sheet pile, as a reinforcing member, H steel is arranged and welded so as to orbit around the steel sheet pile at right angles to the longitudinal direction of the steel sheet pile to reinforce the peripheral wall. Item 4. A steel sheet pile fermenter according to any one of item 3. A stirrer that connects the steel sheet piles to form an enclosure, and collects and stirs a solid or liquid mixture such as organic waste, livestock dung, and bedding,
A mixed processing product in a moromi state in which the organic waste and the wood chip are mixed is transported, and a hopper for charging the processing mixture,
A rotation axis of a cylindrical tube rotatably supported on the upper beam plate, provided with an air passage communicating with a blower for introducing air,
A rotating shaft rotatably disposed therein, a plurality of stirring blades fixed to the rotating shaft at predetermined intervals in multiple stages, and provided with an air supply pipe communicating with the ventilation path,
A transport belt that transports the compost that has been fermented and deposited on the bottom,
A casing enclosed by connecting the steel sheet piles to form an enclosure, connecting an exhaust pipe for collecting gas generated by the fermentation process, and being shielded from outside air,
The mixture of organic waste conveyed from the outside is fed from the hopper arranged at the top, and the air sent by the blower is sent to the stirring blade provided in several stages through the inside of the cylindrical tube of the rotating shaft. A steel sheet pile fermentation comprising: rotating the stirring blade while squirting from the trachea to stir the mixture to promote fermentation; and discharging composted organic waste falling to the bottom to the outside by the transport belt. Tank.

Images