JP2008126162A - Helically disposed agitation impeller, and garbage disposal apparatus, feed fermentation apparatus and compost fermentation apparatus each equipped with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage disposal apparatus, a feed fermentation apparatus, and a compost fermentation apparatus capable of carrying out the treatment in a short period of time at a relatively high temperature making use of aerobic bacteria and a plurality of light and inexpensive agitation impellers that can minutely pulverize an object to be fermented, can sufficiently supply oxygen to the object, and can achieve sufficient fermentation at a relatively high temperature. <P>SOLUTION: The agitation impellers for use in the garbage disposal apparatus, the feed fermentation apparatus, and the compost fermentation apparatus are helically disposed on a rotary shaft, which are deviated from each other by a predetermined deviation angle with respect to the rotation direction thereof, thereby effectively agitating an object to be fermented. Further, each of the agitation impellers is securely fixed onto the rotary shaft by virtue of a whirl-stop welded to the rotary shaft on a position whereon a predetermined gap formed between fixed flat end parts of a pair of impeller fixing pedestals is located, thereby effectively agitating the object to be fermented. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to agitation technology in decomposition, composting, and volume reduction processing of sludge treatment in food factories, sewage, waste disposal in factories, animal manure treatment, and other residues.

Decomposition, composting, volume reduction treatment (hereinafter referred to as fermentation treatment), such as sludge treatment of food factories, sewage, waste disposal at plants, livestock excrement treatment, and other residues (hereinafter referred to as fermented materials) Has been put to practical use after various studies such as treatment with aerobic bacteria, treatment with high temperature drying, and treatment with anaerobic bacteria from the viewpoint of environmental problems, recycling or resource reuse. However, each system has problems and issues and cannot be said to be functioning sufficiently.
In particular, many treatments using aerobic bacteria are generally used. However, sufficient oxygen supply to the fermented material, stirring for fragmenting the fermented material, and treatment using anaerobic bacteria are performed. In the agitation for subdividing the fermented product, and further in the treatment by high-temperature drying, the agitation for subdividing for highly efficient drying of the fermented product is a very important factor.

  As a method using aerobic bacteria, as in Patent Document 1, Patent Document 2, and Patent Document 3, processing is performed using general aerobic bacteria that are active at relatively low temperatures (50 to 60 ° C.). However, in order to treat the fermented product using natural aerobic bacteria, it is essential to supply sufficient oxygen to the fermented product. Specifically, sufficient oxygen is supplied to the fermented product by subdividing the fermented product without applying a force such as a pressing force, and finely cutting and stirring. For this purpose, various methods for stirring fermented materials such as a paddle type stirring blade, a screw type stirring blade, or an arrangement of a helical stirring blade have been studied. However, the stirring method of the to-be-fermented substance which fully functions in terms of stirring property (including the degree of oxygen supply), strength of the stirring mechanism, life, and maintainability has not been established. In particular, in the stirring mechanism, a technology related to the arrangement of the rotation shaft, the stirring blade base, the stirring blade, and the stirring blade has not been established. Further, in terms of the operation of the treatment, it took a great deal of time to complete the fermentation treatment, and odor generation during that period, countermeasures for that, and the like were necessary.

  On the other hand, volume reduction by high-temperature drying is intended to reduce the volume by drying the material to be fermented at high temperature, but it becomes expensive equipment for high-temperature drying, and is the same as when using the aerobic bacteria Furthermore, a stirring method for a fermented product that functions sufficiently in terms of stirring properties for subdividing the fermented product, strength of the stirring mechanism, life, and maintainability has not been established. Furthermore, the generation of dangerous and harmful gases associated with high-temperature drying has occurred, and it has been difficult to use for general purposes.

  Patent Document 1 is provided for processing household garbage, and a helical stirring blade is continuously fixed from one end of the rotating shaft to the other end around a horizontal rotating shaft in the tank. The stirrer is provided. In this method, the spiral stirring blade stirs the garbage, but in the process, the garbage is pressed and stirred with a pressing force, finely subdivides the garbage, and oxygen is sufficiently dispersed. It ’s not enough. In addition, since pressing and stirring are performed with a pressing force, a large load is applied to the stirring blades and the rotating shaft, and the drive source becomes large. Furthermore, since it is a spiral stirring blade, there is a concern that it requires a lot of labor and cost for maintenance due to wear, breakage, and the like.

  Patent Document 2 is provided for the treatment of garbage and the like, and includes a large number of unitary stirring blades around a horizontal rotating shaft in a tank. The structure is such that a polygonal rotation shaft corresponding to the number is used, and a stirring blade mounting base is used, and a stirring blade is attached to each surface of the polygonal rotation shaft. Mounting uses bolts for mounting and so on, so a lot of force is required for fixing, and at the same time it becomes a special rotating shaft, so the base is complicated and expensive, and the rotating shaft is also expensive There is concern to become.

  In Patent Document 3, a rotating shaft that supports a stirring blade is penetrated in the longitudinal direction in a central portion of a methane tank that efficiently performs methane fermentation, and the stirring rod is attached to the rotating shaft in a substantially radial manner. A large number of stirring rods are attached at predetermined intervals so as to be arranged in a spiral shape to form a spiral blade. In this content, since the rotating blades are arranged in a spiral shape, the load on the rotating shaft is an equal load, but the rotating blades are rod-shaped, and the fermented material is stirred and stirred, so-called pressing force. Therefore, a large load is applied to the stirring blade and the rotating shaft, and the drive source becomes large. Furthermore, since it is a spiral stirring blade that is directly attached to the rotating shaft, there is a concern that it requires a lot of labor and cost for maintenance due to wear, breakage, and the like.

  FIG. 5 shows a typical diagram of the structure relating to Patent Document 1 to Patent Document 3 described above.

JP 09-085218 A JP 2003-154342 A JP 2002-336826 A

  The present invention is directed to a garbage processing machine, a feed fermenter, and a compost that can be processed in a short time using an aerobic bacterium and using a relatively high temperature, in order to solve the above-described problems of processing of the fermented material. A fermenter (hereinafter referred to as a fermenter) is realized. For this purpose, the object to be fermented is subdivided finely, sufficient oxygen can be supplied, sufficient fermentation can be achieved even at a relatively high temperature, and a lightweight and inexpensive stirring blade is provided.

According to the fermentation processor having the stirring blade of the present invention, the following effects can be achieved.
(1) The stirrer blade is attached to the rotating shaft by shifting the predetermined angle in order with respect to the rotating direction of the rotating shaft and arranged in a spiral shape, thereby smoothing the rotational load on the rotating shaft and reducing the load. it can.
(2) Since the stirring blades are arranged spirally so as to be bilaterally symmetric about the center of the rotation axis, the load on the rotation axis is equal to the left and right, and load imbalance can be prevented.
(3) Further, the number of the stirring blades is always one at the lowest position, and the load can be stabilized.

Next, when it uses by the combination of the stirring blade and fixed base of this invention, the following effect can be achieved further.
(4) By adopting a stirring base, the stirring blades are arranged so as to be spiral at a free angle regardless of the shape of the rotating shaft, so that one stirring blade is always at the lowest position. Therefore, the load on the rotating shaft becomes uniform and light, and the rotating shaft and the rotating shaft drive source can be made small and inexpensive.
(5) Furthermore, since the agitation blade is fixed to the rotating shaft, a rotation stopper is installed on the rotating shaft, and the structure is a clamped and fixed structure. There is no need to consider the stress concentration due to the shape, and it is possible to reduce the weight of the rotating shaft and to use inexpensive materials such as pipes.

Furthermore, when it sees as a fermentation processing machine using the stirring blade of this invention, the following effect can be achieved.
(6) Since the agitating blades subdivide the fermented product with a force similar to that of cutting instead of pressing force against the fermented product, sufficient oxygen can be supplied to the fermented product. Early fermentation of food can be realized.
(7) At the same time, generation of odor accompanying incomplete fermentation can be prevented.
(8) In addition, in accordance with (1) to (7) above, sufficient oxygen supply to the fermented material and sufficient fragmentation and stirring of the fermented material can be achieved, so that fermentation at high temperature can be realized, and in a short time Can be achieved.

  A first invention of the present invention is a stirring blade installed in a fermentation agitation tank of a garbage processing machine, a feed fermenter and a composting fermenter, wherein a predetermined angle is sequentially shifted with respect to the rotation direction of the rotation shaft, and the spiral The to-be-fermented substance is effectively stirred by the stirring blades arranged in a shape.

  2nd invention of this invention is the stirring blade installed in the fermentation stirring tank of the garbage processing machine of 1st invention, a feed fermenter, and a composting fermenter, in each of the right and left sides in a fermentation stirring tank A predetermined angle is sequentially shifted with respect to the rotation direction of the rotating shaft, and the fermented material is effectively stirred by the stirring blades arranged in a spiral shape.

  In the third invention of the present invention, the blade tip of the stirring blade fixed to the stirring blade of the second invention effectively stirs the fermented material by the stirring blade arranged toward the center of the rotation shaft length. It is.

  4th invention of this invention is a stirring blade installed in the fermentation stirring tank of a garbage processing machine, a feed fermenter, and a composting fermenter, Comprising: The fixed base and stirring blade which fix a stirring blade to a rotating shaft In a stirring blade in which a stirring blade is fixed to the opposite side of the pedestal direction of the blade support pedestal, a predetermined angle with respect to the rotational direction of the rotation shaft is formed. The to-be-fermented substance is effectively stirred by stirring blades that are sequentially shifted and arranged in a spiral shape.

  According to a fifth aspect of the present invention, in the fourth aspect, in the stirring blades installed in the fermentation agitation tank of the garbage processing machine, the feed fermenter and the composting fermenter, each of the left and right sides in the fermentation agitation tank In addition, a predetermined angle is sequentially shifted with respect to the rotation direction of the rotation shaft, and the fermented material is effectively stirred by the stirring blades arranged in a spiral shape.

  According to a sixth aspect of the present invention, in the fixed base according to the fourth and fifth aspects, a rotation stopper is disposed on the rotary shaft at a position corresponding to a predetermined gap in a state where the both-end fixed portions are fastened and fixed. The fermented material is effectively stirred by the stirring blade.

  7th invention of this invention is a stirring blade installed in the fermentation stirring tank of a garbage processing machine, a feed fermenter, and a composting fermenter, Comprising: The fixed base and stirring blade which fix a stirring blade to a rotating shaft In the stirring blade in which the stirring blade is fixed to the opposite side to the pedestal direction of the blade support pedestal, on the left and right sides in the fermentation stirring tank, The blade tip of the stirring blade mounted on the tip of the stirring blade is mounted toward the center of the rotation shaft length, and is sequentially shifted by a predetermined angle with respect to the rotation direction of the rotation shaft, and the stirring blade is arranged in a spiral shape. This effectively stirs the material to be fermented.

  According to an eighth aspect of the present invention, in the fixed base according to the sixth and seventh aspects, a rotation stopper is disposed on the rotation shaft at a position corresponding to a predetermined gap in a state where the both end fixing portions are fastened and fixed. A stirring blade having a fixed pedestal, characterized in that the blade tip of the stirring blade attached to the tip of the stirring blade on each of the left and right sides in the fermentation stirring tank is the center of the rotation axis length In addition, the fermented material is effectively stirred by stirring blades arranged in a spiral manner by shifting the predetermined angle in order with respect to the rotation direction of the rotating shaft.

  The ninth invention of the present invention is a garbage disposal machine, a feed fermenter and a composting fermenter provided with the stirring blades of the first to eighth inventions.

The whole structure of the fermentation processing machine of this invention is shown in FIG.
The fermenter of the present invention adds aerobic bacteria that are active at high temperatures to the fermented material that has been introduced into the fermentation agitation tank from the inlet, and is rotated horizontally in the fermentation agitation tank. The shaft is rotated by a rotation drive source outside the fermentation agitation tank, and the rotating blades attached to the rotation axis are rotated to subdivide and agitate the fermented material in the fermentation agitation tank, and to be fermented in the fermented material. Sufficiently supply oxygen necessary for the fermentation of the product and perform the fermentation effectively.

Fermentation by a predetermined aerobic bacterium is promoted by heating the inside of the fermentation agitation tank after adding the fermented material and adding the aerobic bacteria until the inside of the fermentation agitation tank reaches 75 ° C.
Although the fermented material can be fermented in a natural state without being heated, in order to obtain good quality compost and feed, the heating temperature is 75, even in the sense of heating above the temperature at which soil fungi, parasites, etc. die. ° C is desirable.

  The rotating shaft is horizontally supported in the fermentation agitation tank by two bearings provided on both sides of the fermentation agitation tank, and the rotational force is obtained by connecting to a geared motor or the like which is a drive source provided outside the fermentation agitation tank. Then, control for realizing a predetermined rotational peripheral speed of the stirring blade is performed. It is desirable to use a roller chain coupling for the connection between the drive source and the rotating shaft in consideration of easy replacement such as wear and breakage.

  When predetermined fermentation of the fermented material in the fermentation agitation tank is completed, dry air is supplied into the fermentation agitation tank by a drying intake fan to dry the fermented material. The dry air is preferably warm air.

  When drying of the fermented material is completed, the holding fitting of the discharge port is opened, the fermented material is taken out from the discharge port, and a series of fermentation processes is completed.

The stirring blade and the rotation shaft, which are the basis for realizing an effective fermentation treatment of the fermented material, are configured as follows.
The stirring blades are arranged in a spiral shape with the cutting edge surface of the stirring blade directed in the rotation direction of the rotation axis, and by sequentially shifting a predetermined angle with respect to the rotation direction of the rotation shaft.
At this time, when the stirring blades are continuously arranged with respect to the entire rotating shaft, the stirring blades are spirally arranged with respect to the entire axial length of the rotating shaft.
When the stirring blades are arranged on the left and right with respect to the center of the axis of the rotation axis in relation to the transfer of the fermented material (when it is necessary to move the fermented material by rotating the stirring blades), (1) left and right The agitation blades can be arranged in a spiral shape with a predetermined angle shifted sequentially, or (2) the left and right sides can be arranged in different spiral shapes.

Since the mounting position of the stirring blade to the rotating shaft can be determined by the welding position of the rotating shaft detent described later, it can be set in the axial direction of the rotating shaft and the free position of the rotating shaft. The mounting position of the stirring blade on the rotating shaft can be selected without being affected by the cross-sectional shape.
The installation position of the stirring blade in the axial direction of the rotating shaft is set according to the number of stirring blades installed, and the position of the stirring blade is divided equally according to the number of stirring blades installed in the fermentation stirring tank. .
Furthermore, the mounting position of the stirring blade in the rotation axis rotating direction is set as an angle of 360 ° C divided by the number of stirring blades installed as the mounting position of the rotating blades, and the rotating blades are attached to the spiral position by sequentially shifting the angle. It is.
Centering on the center position (O position in FIG. 1) in the rotation axis direction of the fermentation agitation tank, it exists on the A and B sides in the figure, but the stirring blades including both are arranged in a spiral shape. As a result, since the stirring blade is always in the lowest position, the load on the rotating shaft is equalized, and the load on driving reduction can be reduced.

Further, the stirring blade is placed on the A and B sides toward the center O position.
Thereby, the force of the stirring blade works so that the fermented material in the fermentation stirring tank gathers at O at the center position, and the fermented material is stirred more efficiently.

  Furthermore, in the positional relationship between the stirring blade and the fermentation stirring tank, the length of the stirring blade (including the stirring blade) is such that the inner circumference of the fermentation stirring tank and the outermost track of the stirring blade of the stirring blade are approximately 20 mm. It is desirable to set.

The structure of the stirring blade and the mounting structure to the rotating shaft are configured as follows.
The agitating blade is composed of two pedestal parts, a fixed pedestal composed of two parts for fixing the agitating blade itself to the rotating shaft, and a blade support pedestal for supporting the stirring blade on one fixed pedestal part. The stirring blade is fixed to the side opposite to the pedestal direction. The fixed base and the blade support base are fixed by welding.

The fixed pedestal is a strip-shaped steel plate that is bent into a semicircle at the center and has a flat shape at both ends of the strip, and the whole has an Ω shape. Two flat bolt holes for mounting are provided in the flat portions at both ends.
Since the material of the fixed base is used under severe conditions in the fermentation agitation tank, a stainless material is preferable in consideration of corrosion resistance.

The blade support pedestal is a component that has one end integrated into the fixed pedestal and a stirring blade attached to the other end, but its structure is reduced in weight and the convenience of mounting the stirring blade is taken into account. And front and rear ribs that are formed in a box shape with a gap between the two blade support columns, and blade support front and rear ribs that hold the stirring blade in a positioning state. These parts are made into a hollow structure made into an integral part by welding. For fixing the welding between the fixed base and the blade support base, triangular reinforcing ribs are used to ensure strength.
The material of the blade support pedestal is preferably a stainless steel material in consideration of the conditions in the fermentation stirring tank as in the case of the fixed pedestal.
In addition, conventional fixed pedestals generally used metal cutting or die-cast products, cast articles, etc., but by making the fixed pedestal of the present invention a strip-shaped steel plate, it is manufactured at a very low cost. can do.

The rotation shaft and the stirring blade are fixed to each other by a pressure-fixing method using a detent provided on the rotation shaft and two fixed bases of the stirring blade.
The arcs bent into the semicircle of the fixed base are faced outwards and faced to make a pair, the rotating shaft is sandwiched between them, and the flat portions at both ends of both fixed bases are fastened and fixed with mounting bolts. At this time, between the flat portions at both ends of the fixed pedestal facing each other, a predetermined gap is set even in the state of being fastened and fixed, and the arc on the inner surface of the fixed pedestal is fixed to the rotation axis by the fastening and fixing force. It is trying to become.

In addition, since the rotation stop of the fixed pedestal is welded to a predetermined position on the rotating shaft that hits the predetermined gap, even if the fastening fixing force is insufficient and the crimping fixing is not perfect, The fixed base and the stirring blade can be reliably fixed to the rotation shaft.
Thereby, conventionally, what was fixed with a keyway or a fixing bolt to fix the stirring blade to the rotating shaft can be realized by welding a detent to the rotating shaft, Processing on the rotating shaft, key groove, fixing bolt hole and the like for fixing the stirring blade to the rotating shaft become unnecessary.
The rotating shaft is preferably a carbon steel pipe for pressure piping (STPG) in terms of strength and securing of material.
Therefore, it is not necessary to consider the stress concentration due to the shape effect. Normally, a rod-shaped shaft is used as the rotating shaft, but a hollow pipe can be used as the rotating shaft. As a result, it is possible to improve the strength of the rotating shaft per unit weight, and it is possible to realize light weight and inexpensive equipment as a whole.

As a result, in the conventional example, the peripheral speed of the outermost periphery of the stirring blade was about 30 m / min. However, by realizing the fixing of the stirring blade to the rotating shaft by the crimping fixing of the present invention, 70 m / min. The speed can be increased to a certain peripheral speed, and effective stirring of the fermented material can be realized.
In addition, in the case of a conventional fermentation process, a fermentation temperature of 50 to 60 ° C. and a fermentation process time of 6 to 24 hours are required. By realizing the present invention, the fermentation temperature is increased to 70 to 100 ° C. The fermentation process can be completed in 4-5 hours.

The arrangement of the stirring blade 4 on the rotating shaft 8 will be described with reference to FIG.
FIG. 2 is a schematic view showing the arrangement seen from the side of the stirring blade 4 in the fermentation stirring tank 3 and the fixed state on the rotating shaft 8.
The number of stirring blades 4 is determined by a value obtained by dividing the length of the rotary shaft 8 in the fermentation stirring tank 3 determined by the required volume of the fermentation stirring tank 3 by L, with the interval between the stirring blades 4 being L. However, when the stirring blades 4 are arranged symmetrically as shown in FIG. 2b), the central portion O of the rotating shaft 8 has a central portion O because the stirring blade 7 is attached inward. Is the dimension of L + ΔL.

a) is a state in which the number of stirring blades 4 of the basic form “one-way spiral arrangement” is set to ten. The predetermined angle of attachment of the stirring blade 4 is 36 °, and the stirring blade 4 is arranged as A1, A2,... A10 with respect to the entire axial length of the rotating shaft 8, and the stirring blade is at the lowest position during rotation. 4 can always be one. In the example of this figure, A6 corresponds.
In this example, the to-be-fermented substance moves to the right in the figure while being subdivided and stirred, and the load on the rotary shaft 8 is stable because the whole is the stirring blades 4 arranged uniformly. It becomes.

b) is an example of “left-right spiral arrangement” applying a). The left and right spiral arrangement in which the agitating blades 4 are arranged on the left and right with respect to the central reference of the eight-axis length of the rotating shaft in relation to the conveyance of the to-be-fermented material (when the to-be-fermented material needs to be moved by the rotation of the stirring blades 4). The stirring blade 4 shows the setting state of 10 sheets.
In this example, A1 to A5 and B1 to B5 of the side arrangement diagram are arrangement diagrams of the stirring blades 4 arranged as a spiral in which a predetermined angle that is continuous on the left and right is sequentially shifted, and the spiral rotation direction is the rotation axis. The rotational direction of 8 is the counter-rotating direction.
In this application example, as examples in which the left and right are arranged in different spirals, they can be arranged as shown in A1 to A5 and (B1) to (B5) in the side arrangement diagram. In that case, as shown to the right figure, it shall arrange | position from a completely reverse direction so that it may become (B5)-(B1).
Also in this case, the stirring blade 4 at the lowest position during rotation can always be one. In this example, B1 (B5) corresponds.
In both cases of b) without () and with (), since the lowest stirring blade 4 is always one, the load on the rotating shaft is independent of the conveying direction of the fermented material. Can be considered exactly the same.

Next, the correspondence of the equipment when a large and small fermentation processing machine 1 is necessary in relation to the fermented material will be described.
The fermentation processing machine 1 of the present invention is a facility corresponding to the under-fermentation of the fermented material with the width in the axial direction of the rotating shaft without changing the depth and height of the facility (fermentation stirring tank 3). .
Without changing the predetermined dimension L between the agitating blades 4 described above, the number of the agitating blades 4 is set based on the required length of the rotating shaft 8 determined from the capacity of the fermentation agitation tank 3 of the fermented material and the L dimension. The predetermined angle to be shifted in the order of the blades 4 is determined. Specifically, the number of stirring blades 4 is calculated by the following equation.

The number of the stirring blades 4 is set to 8 at the minimum in terms of smoothing the load on the rotating shaft 8, and the predetermined angle to be sequentially shifted is 45 °. In addition, the maximum number of stirring blades 4 is set to 12 because of the complication of the apparatus of the fermenter 1, and in that case, the predetermined angle shifted in order is 30 °.
As an application, in the case of 10 to 8 stirring blades 4, the stirring blades 4 corresponding to the unnecessary number of the stirring blades 4 are set on the rotary shaft 8 while maintaining the predetermined angles of the 10 and 12 stirring blades 4. It is possible to respond by not mounting and fixing.
When the number of the stirring blades 4 is reduced, for example, when the number of the stirring blades 4 is 6 or less and the predetermined angle of the shift is 60 ° or more, the load applied to one of the stirring blades 4 becomes very large. Therefore, it is necessary to avoid as much as possible. In this case, when six stirring blades 4 are required from the setting state of 10 or 8 stirring blades 4, the stirring blades 4 are attached so that four or two are removed. You can also.

In FIG. 3, the block diagram of the stirring blade 4 of an example of this invention is shown.
The agitation blade 4 is integrally welded to the fixed A pedestal 51 composed of a fixed A pedestal 51 and a fixed B pedestal 52 sandwiched by the rotary shaft 8 and fixed to the fixed A pedestal 51, and is stirred in the opposite direction to the fixed A pedestal 51. The blade support pedestal 6 that fixes the blade 7 is used. The material of the fixed A pedestal 51 and the fixed B pedestal 52 is preferably a stainless steel in consideration of the conditions in the fermentation agitation tank. In this embodiment, SUS304 and a plate thickness of 14 mm are used.

The blade support pedestal 6 is inserted into and attached to the blade support A column 61, the blade support B column 62, and the blade support A column 61 and the blade support B column 62 having substantially the same shape. In order to position the stirring blade 7 at the same time as creating the gap, the front rib 64, the rear rib 65, the blade support front rib 66, and the blade support rear rib 67 are arranged between the blade support A column 61 and the blade support B column 62. The shape is sandwiched between and integrally welded. The fixed A pedestal 51 and the blade support B column 62 are welded by arranging the reinforcing ribs 63 to ensure rigidity. The material of the blade support A column 61, the blade support B column 62, the front rib 64, the rear rib 65, the blade support front rib 66, the blade support rear rib 67 and the reinforcing rib 63 is stainless steel in consideration of the conditions in the fermentation agitation tank. A material is preferred.
Further, as shown in FIG. 3, the surface in the traveling direction during rotation of the blade support pedestal 6 becomes an inclined surface by cutting after welding or cutting of the blade support A column 61 and the blade support B column 62 before welding. It is desirable to process it.

  The fastening and fixing of the stirring blade 4 to the rotating shaft 8 is shown in the front view of FIG. 3a), but a detent 81 is previously positioned and welded to a predetermined position of the rotating shaft 8, and the fixed A base 51 and Fastening and fixing are performed so that a predetermined gap X at the time of fastening and fixing to the fixing B base 52 is located. When the rotary shaft 8 is sandwiched between the fixed A pedestal 51 and the fixed B pedestal 52 and the flat portions 53 at both ends are fastened and fixed with M20 bolts, both ends of the fixed A pedestal 51 and the fixed B pedestal 52 are deformed in the compression direction and fixed. The rotating shaft is fixed by crimping with the inner arc of the A base 51 and the fixed B base 52, and the gripping force of the substantially inner arc works. By this gripping force and anti-rotation force, the fastening and fixing of the stirring blade 4 to the rotating shaft 8 is further ensured.

Next, the stirring blade 7 will be described with reference to FIG. 3c) AA view and FIG.
The stirring blade 7 is inserted between the blade support A column 61 and the blade support B column 62 with the cutting edge surface 71 of the stirring blade 7 in the traveling direction, and is positioned by the blade support pre-rib 66 and the blade support post-rib 67. The cutting blade mounting bolt 68, which is an M14 bolt in this embodiment, is clamped and fixed. In this case, the angle of the cutting edge surface 71 of the stirring blade 7 is preferably adjusted as appropriate so that the material to be fermented can be subdivided by cutting with the stirring blade 7. The stirring blade 7 is preferably made of steel, and a tractor claw may be used.
The cutting edge surface 71 is preferably an acute shape, but any cutting edge surface 71 having a relatively thin thickness can be used.

  By using the agitating blade 4 and the garbage processing machine, the feed fermenter and the composting fermenter 1 provided with the aerobic bacteria, the fermented material can be finely divided and sufficient oxygen can be supplied. By using relatively high temperature, it is possible to realize a short-time fermentation process and a light and inexpensive facility.

  Furthermore, as a safety measure, regarding the opening of the inlet 9 and the outlet 10, safety measures such as providing an interlock to the geared motor 12 that is a driving source at the time of opening are incorporated, and the heating of the fermentation agitation tank 3 is excessively increased. Safety measures shall be taken by detecting the temperature.

It is a figure which shows an example of the whole structure of the garbage processing machine of this invention, a feed fermenter, and a composting fermenter. It is a schematic diagram of arrangement | positioning of the stirring blade of this invention. It is a figure which shows an example of the structure of the stirring base of this invention, and the attachment to a rotating shaft. It is a figure which shows an example of the stirring blade attachment to the stirring base of this invention. It is a figure which shows the structural example of the conventional fermentation apparatus.

Explanation of symbols

1 Garbage processing machine, feed fermentation machine and composting fermentation machine (fermentation processing machine)
2 Main body container 3 Fermentation stirring tank 4 Stirring blade 5 Fixed base 51 Fixed A base 52 Fixed B base 53 Fixed base flat part 6 Blade support base 61 Blade support A column 62 Blade support B column 63 Reinforcement rib 64 Front rib 65 Rear rib 66 Blade support front rib 67 Blade support rear rib 68 Blade mounting bolt 7 Stirring blade
71 Cutting edge surface 8 Rotating shaft 81 Non-rotating 9 Input port (upper ceiling)
DESCRIPTION OF SYMBOLS 10 Outlet 11 Holding metal 12 Geared motor 13 Roller chain coupling 14 Bearing 15 Main body frame 16 Motor base 17 Drying intake fan 18 Air reverse feed prevention lid 19 Heat insulating material X Predetermined gap

Claims (9)

  In the stirring blade installed in the fermentation stirring tank of the garbage processing machine, the feed fermenter and the composting fermenter, the predetermined angle is sequentially shifted with respect to the rotation direction of the rotating shaft, and the stirring blade is arranged in a spiral shape. Stirring blade.   In the stirring blades installed in the fermentation agitation tank of the garbage processing machine, the feed fermenter and the composting fermenter, the predetermined angle is sequentially shifted with respect to the rotation direction of the rotating shaft on each of the left and right sides in the fermentation agitation tank. An agitating blade that is arranged in a spiral shape.   The stirring blade according to claim 2, wherein the blade tip of the stirring blade is disposed toward the center of the axial length of the rotating shaft.   The stirring blade according to claim 1, comprising two pedestals, a fixed pedestal that is fixed to the rotating shaft and a blade support pedestal that supports the stirring blade on the fixed pedestal, on the opposite side of the pedestal direction of the blade support pedestal. A stirring blade characterized by fixing a stirring blade.   In the stirring blade installed in the fermentation stirring tank of the garbage processing machine, the feed fermenter and the composting fermenter according to claim 4, on the left and right sides in the fermentation stirring tank, respectively, with respect to the rotation direction of the rotary shaft The stirring blades are arranged in a spiral manner by shifting the predetermined angles in order.   6. The agitating blade according to claim 4, wherein a rotation stopper is disposed on a rotation shaft at a position corresponding to a predetermined gap in a state in which both end fixing portions are fastened and fixed. A stirring blade equipped with.   A blade supporting pedestal that is installed in a fermentation agitation tank of a garbage disposal machine, a feed fermenter, and a composting fermenter, and that supports a fixed pedestal that fixes the agitation blade to a rotating shaft and a stirring blade on the fixed pedestal In the stirring blade having a stirring blade fixed to the opposite side of the pedestal direction of the blade support pedestal, the tip of the stirring blade is mounted on each of the left and right sides in the fermentation stirring tank. The blade of the stirring blade is mounted toward the center of the rotation axis length, and a predetermined angle is sequentially shifted with respect to the rotation direction of the rotation shaft, and the stirring blade is arranged in a spiral shape.   The fixed pedestal according to claim 7, further comprising a fixed pedestal characterized in that a rotation stopper is disposed on a rotary shaft at a position corresponding to a predetermined gap in a state where both ends of the fixed portion are fastened and fixed. The blades of the stirring blades attached to the tip portions of the stirring blades on the left and right sides in the fermentation stirring tank are mounted toward the center of the rotation shaft length, and the rotation shaft rotates. A stirring blade, wherein a predetermined angle is sequentially shifted with respect to a direction, and the stirring blades are arranged in a spiral shape.   A garbage processing machine, a feed fermenter and a composting fermenter provided with the stirring blades according to claim 1.

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