JP4049984B2 - Composting material manufacturing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is an improvement of an apparatus for producing composting materials that can be processed into compost raw materials composted in a short time by mixing and stirring processed objects such as garbage discharged from homes, restaurants, schools, etc. It is about.
[0002]
[Prior art]
[0003]
There is an urgent need to recycle processed objects such as garbage such as food residues discharged from homes, restaurants, schools, etc. from the viewpoint of effective use of environmental resources.
A well-known device for processing such garbage and recycling it as compost, for example, a pair of stirring blades attached to a pair of parallel-arranged rotating shafts, and a pair of left and right stirring in a plane perpendicular to the rotating axis There is known a structure in which both rotating shafts are driven in a state where blades overlap each other, and an object to be processed is pulverized and mixed and stirred in the overlapping region (hereinafter referred to as “first conventional apparatus”). This apparatus rotates a pair of rotating shafts in directions opposite to each other, pulverizes the objects to be processed in the overlapping region, and mixes and stirs them with stirring blades.
[0004]
Further, the second conventional apparatus described in Japanese Patent Application Laid-Open No. 11-57665 in FIG. 7 has a spiral shape in which a rotating shaft B is provided through the processing tank A, and the rotating shaft B is wound in opposite torsional directions. Stirring blades C and D are attached. In the middle of the stirring blades C and D, a projecting portion F having a ridge portion E that is crushed by applying a lump of garbage is provided. According to the second conventional apparatus, the garbage introduced together with the microorganisms is concentrated between the rotating blades C and D while being stirred by the stirring blades C and D that are rotated by driving the rotating shaft B. At this time, the lump formed by the stirring of the garbage is crushed by hitting the ridge line portion E.
[0005]
[Problems to be solved by the invention]
However, in the first conventional apparatus, since the pair of left and right stirring blades are simply driven to rotate, the mixing and stirring efficiency is low, and it is insufficient to supply air to the decomposing microorganisms in the workpiece. There is a risk that many odors will be generated due to the difficulty of the decomposition treatment by microorganisms.
[0006]
Further, in the second conventional apparatus, the distance that the garbage moves in the processing tank A is not only short to the approximate center of the processing tank A, but also the garbage tends to stay near the center and the stirring becomes insufficient. A lump is easily formed. Therefore, it is necessary to provide a projecting portion F for pulverizing a lump formed by stirring the garbage and the carrier, and a space for providing the projecting portion F in the processing tank A must be secured. Therefore, there is a drawback that the apparatus becomes large, and there is a fear that the aerobic decomposition treatment is difficult to be performed due to insufficient air supply to the decomposing microorganism.
[0007]
The present invention has been devised in view of the above-mentioned problems, and mixes and agitates an object to be treated such as raw garbage with biobacteria, which are decomposing microorganisms, into a compost raw material that is composted in a short time. An object of the present invention is to provide a hygienic and compact manufacturing apparatus for composting materials by improving the efficiency of decomposition treatment.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration. Multiple words, garbage disposal apparatus according to the first aspect of the present invention, together with axially set in parallel to the driving axis of rotation of two driven by drive means turned foster vessel, projecting from the both said drive-rotation shaft The rotating blades are rotated so that there is an overlapping region in a plane orthogonal to the drive rotation axis, and the processing material introduced into the input brewing tank is mixed and stirred by the rotation. The rotary blade is disposed at the bottom of the charging brewing tank, and the material shape has a band shape so as to surround the rotary blade and rotate around a rotation axis parallel to the axis of the drive rotation shaft. None were spirally wound spiral vanes, through the rotation supporting mechanism provided floatingly on the closing foster tank, interposed the driving force transmission mechanism between the drive means the rotation supporting mechanism, Further, the rotation support mechanism Characterized in that configured to Keru set the transfer window for discharging the treated product to be scooped up by the spiral vanes to the outside by moving.
[0009]
A second aspect of the present invention relates to the composting material manufacturing apparatus according to the first aspect, wherein the rotation support mechanism is coupled to both ends of the spiral blade and is coplanar with a direction perpendicular to the horizontal rotation axis. It characterized a pair of annular ring member which is arranged to rotate the inner, that pre SL formed from the rolling member for supporting the rotation of the ring member.
[0010]
Invention of Claim 3 is related with the manufacturing apparatus of the composting material as described in any one of Claim 1 thru | or 2, The said rolling member is formed with a roller, A collar part is provided in the both ends of this roller Forming a groove having a concave shape in the longitudinal section and holding both outer peripheral edge edges of the ring member by the flanges, thereby allowing the ring member to rotate, but moving in the horizontal rotation axis direction. It is characterized by being constrained.
[0011]
Invention of Claim 4 is related with the manufacturing apparatus of the composting material as described in any one of Claim 1 thru | or 3, The to-be-processed object discharged | emitted from the said transfer window adjacent to the said input brewing tank is carried out. A discharge tank having a stirring means for stirring and a scraping means for discharging the object stirred by the stirring means to the outside from the discharge port; and the stirring means extends both the drive rotary shafts. It has a pair of stirring rotation shafts formed by sharing and a mixing stirring blade projecting from the pair of stirring rotation shafts, and the scraping means moves so as to surround the rotation locus of the mixing stirring blade. A winding link mechanism, and a plurality of scraping blades provided in parallel to the stirring rotation axis direction on the winding link mechanism, and the scraping blade moving between the scraping blade and the bottom of the discharge tank. The bottom of the discharge tank While for rotating to exist a minute gap to the surface, characterized in that the outlet is provided on the moving locus of the scraping blade.
[0012]
The present invention relates to a composting material manufacturing apparatus, which manufactures a composting material that mixes and stirs a workpiece that has been input into an input brewing tank by rotation of a mixing and stirring unit that is driven around a horizontal rotation axis by a driving unit. In the apparatus, the mixing and stirring means has a spiral blade having a material shape in a strip shape and is spirally wound, a rotation support mechanism for floatingly supporting both ends of the spiral blade in the charging brewing tank, and the rotation Formed by a driving force transmission mechanism wound between a supporting mechanism and the driving means, and further, the rotational supporting mechanism is coupled to both ends of the spiral blade and is coplanar with the direction perpendicular to the horizontal rotational axis. A pair of annular ring members arranged so as to exist and a rolling member provided in the charging brewing tank to support the rotation of the ring member, and transmitting the driving force to the ring member. Apparatus for producing compost material configured such that the spiral blade is rotated by driving through the mechanism is also disclosed.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail below based on the embodiment shown in FIGS.
In the figure, reference numeral 1 is composed of an input brewing tank 2 in which raw garbage which is an object to be treated is introduced and mixed and stirred, and a discharge tank 3 in which the raw garbage brewed from the input brewing tank 2 is further mixed and stirred. A composting material manufacturing apparatus (hereinafter referred to as “garbage disposal apparatus”) is generally shown. The outer walls of the tanks 2 and 3 are connected to each other via a partition wall 4 and have a completely sealed structure with respect to the outside. Both tanks 2 and 3 are provided with a pair of drive rotating shafts 5 and 6 horizontally and parallel through the partition wall 4. The drive rotary shafts 5 and 6 are coupled to and driven by a first drive device 8 such as a motor via a reduction gear device 7.
[0014]
Next, the input brewing tank 2 will be described in detail. Cross-shaped rotary blades 9 and 10 are projected on the outside of the drive rotary shafts 5 and 6 that are provided in the input brewing tank 2, and the rotary blades 9 and 10 are orthogonal to the rotary shafts 5 and 6. When viewed in-plane, they rotate in a state where there are overlapping regions (cross regions). The rotation direction of the rotary blades 9 and 10 is the arrow direction shown in FIG. 3 or the opposite direction. Moreover, these rotary blades 9 and 10 are installed so that it may be located in the bottom part of the input brewing tank 2. FIG.
Reference numeral 11 denotes a spiral blade having a strip-shaped material wound in a spiral shape (spiral shape), and rotates between the input brewing tank 2 and the rotary blades 9 and 10. It is set so as to rotate with a slight gap between the bottom 12 of the charging brewing tank 2 that forms a substantially semi-cylindrical inner peripheral surface.
[0015]
The rotation support mechanism will be described with reference to FIG. FIG. 5 shows a rotation support mechanism provided on the left outer wall 15, and the spiral blade 11 is floatingly supported on the partition wall 4 and the outer wall 15 via the rotation support mechanism. The rotation support mechanism is formed by an annular ring member 13 and a guide roller 16 which is a rolling member that rotatably supports the ring member 13. The ring member 13 is coupled to the left and right ends of the spiral blade 11 and is disposed so as to rotate in the same plane as the plane orthogonal to the axis of the drive rotary shafts 5 and 6. Each ring member 13 surrounds the pair of drive rotary shafts 5 and 6 and supports the spiral blades 11 in a floating manner so as to rotate around the horizontal rotation axis P.
On the other hand, an appropriate number of guide rollers 16 are disposed on the outer peripheral edge of the ring member 13, and flange portions 161 are provided at both ends of the guide roller 16, and the ring member 13 is formed in a groove 162 formed in a concave shape in the longitudinal section. , 14 gets stuck. Each roller 16 is coupled to the outer wall 15 by a support bar 163 and rotates with respect to the support bar 163.
The rotation support mechanism provided on the partition 4 side also has the same configuration as described above in that it includes the ring member 14 and the guide roller 17.
[0016]
Next, the driving force transmission mechanism includes a sprocket 18 provided on the ring member 13 and a chain 19 wound around the arrangement 181 of the sprocket 18. The sprocket 18 is linked to a second drive device 20 formed by a motor or the like via a chain 19 and rotates the spiral blade 11 around the horizontal rotation axis P.
Further, a plurality of scrapers 21 that scoop up and scrape raw garbage are provided on both the front and back surfaces of the spiral blade 11. A transfer window 22 is provided at a position facing the upper surface of the garbage above the partition wall 4, and the garbage scraped up by the scraper 21 of the spiral blade 11 is moved to the adjacent discharge tank 3. Reference numeral 23 denotes an insertion port for introducing garbage (FIG. 3).
[0017]
Next, the discharge tank 3 will be described in detail. The discharge tank 3 includes a stirring means 25 (FIG. 2) for stirring the raw garbage discharged from the transfer window 22 and a scraping means for taking out the raw compost subjected to primary composting from the discharge port 26 to the outside. The
The stirring means 25 is extended by extending the drive rotation shafts 5 and 6, and a pair of stirring rotation shafts 51 and 61 that are provided so as to pass through between the partition wall 4 and the outer wall 28. 61 and mixing stirring blades 91 and 101 projecting in a cross shape.
On the other hand, the scraping means includes a winding link mechanism 29 that moves while including the rotation trajectory of the mixing stirring blades 91 and 101, and the scraping blade 34.
The winding link mechanism 29 is formed by a sprocket 31 and a pair of chains 32 wound around the sprocket 31, and is driven by third drive means 33 such as a motor. The chain 32 is provided with a scraping blade 34 having an L-shaped cross section parallel to the agitation rotating shafts 51 and 61, and a slight gap exists between the chain 32 and the bottom 35 of the discharge tank 3 that forms a substantially semicircular inner surface. Rotate. The discharge port 26 is provided on the movement locus of the scraping blade 34 and is opened and closed by an open / close lid 36. Reference numeral 37 denotes a transfer chute (FIG. 1), and 38 denotes a discharge chute (FIG. 4).
Moreover, each tank 2 and 3 is formed in a completely sealed state so that the decomposition fermentation odor generated inside the tank is not released to the outside. Then, an internal gas is appropriately discharged to the outside through a dehumidifying device and a deodorizing device (not shown), and a secondary air intake device (not shown) for canceling the negative pressure of the tanks 2 and 3 by the deodorizing device is accompanying with this. Is provided.
[0018]
The operation of the present invention will be described. The input brewing tank 2 and the discharge tank 3 are filled with fungus beds such as sawdust, rice husks, porous wood chips, ceramics, etc. supporting decomposing microorganisms. Then, raw garbage as a raw material is introduced into the input brewing tank 2 from the input port 23, and is input to the height M position just below the transfer window 22 and covered. When the first driving device 8 is driven in either the forward or reverse direction, the garbage is crushed by the rotation of the rotary blades 9 and 10 accompanying the rotation of the pair of rotating shafts 5 and 6 and mixed in the input brewing tank 2. Stir. At this time, the spiral blade 11 is rolled on the guide rollers 16 and 17 via the chain 19 by the second driving device 20. For example, when the spiral blade 11 is rotated clockwise in FIG. 3, the garbage is mixed and stirred in the right direction in FIG. At the same time, the spiral blade 11 scoops up the garbage so as to scoop up the garbage from the bottom 12 by the scraping plate 21, so that it naturally falls in the space above. As a result, the garbage comes into contact with the air, and the bacteria, that is, the microorganisms, come into contact with the air, so that the killing of the bacteria is avoided and the activation is promoted.
[0019]
Next, the raw garbage produced by mixing and stirring is scooped up by the scraper 21 and scraped upward. At this time, the raw garbage is transferred from the transfer window 22 to the adjacent discharge tank 3 (see FIG. 1 and 4 arrow b). In the discharge tank 3, the raw garbage is further mixed and stirred by the mixing stirring blades 91 and 101, and the brewing is continued. The rotating shaft 5 is operated intermittently, and after stirring for a certain time, the operation is stopped and laid down, and the operation and stirring are repeated. The condition of the intermittent operation is to intermittently operate the first drive means 8 and the second drive means 20 by detecting that the temperature in the charging brewing tank 2 has reached a predetermined temperature.
[0020]
Next, the chain 32 is rotationally driven counterclockwise by the third driving means 33 (FIG. 4). The primary composted garbage captured by the scraping blades 34 of the chain 32 is discharged to the chute 38 from the discharge port 26 with the opening / closing lid 36 open, and is then packed in a bag and transported to the fully matured fertilizer manufacturing factory as the next process. (In the direction of arrow B in FIG. 4).
[0021]
According to the garbage processing apparatus according to the present embodiment, the rotary blades 9 and 10 driven by the rotary shafts 5 and 6 that can be rotated forward and backward are provided so as to have a cross region. Since the spiral blades 11 are provided so as to surround 9 and 10, the spiral blades 11 rotate while being supported by the guide rollers 16 and 17. At this time, since the spiral blade 11 is supported by the guide rollers 16 and 17 so as to be rotated, the spiral blade 11 can be freely rotated without interfering with the rotating blades 9 and 10. For this reason, when the raw garbage is mixed and stirred in the input brewing tank 2, the raw garbage is screwed and mixed and stirred also by the spiral blade 11, so that, unlike the first conventional apparatus, by the synergistic effect of both, The mixing and stirring efficiency of the garbage can be remarkably improved, and as a result, the decomposition effect of the garbage can be remarkably improved.
In addition, the spiral blade 11 is configured not only to mix and agitate the garbage, but also to scrape it and drop it from above. Therefore, unlike the second conventional apparatus, the frequency of bringing the bacteria into contact with air is low. The aerobic decomposition treatment is carried out with a simple structure and an effect of suppressing the generation of malodor. Moreover, since the rotary blades 9 and 10 are provided close to the bottom of the charging brewing tank 2, there is an effect that the garbage can be decomposed regardless of the amount of the garbage.
Moreover, since the litter of food waste is pulverized in the cross region of the rotary blades 9 and 10, there is no need to provide the protruding portion E as in the second conventional apparatus, and the charging brewing tank 2 can be made compact. Have
Furthermore, since the garbage scraped up by the spiral blade 11 can be automatically moved from the transfer window 22 to the adjacent discharge tank 3, the garbage is matured in the discharge tank 3 without requiring manual labor ( It can be used as a primary composting material and has a convenient effect.
Further, since the ring members 13 and 14 are held by the flange portions 161 of the guide rollers 16 and 17, the movement of the ring members 13 and 14 to the horizontal rotation axis P is prevented and the spiral blade 11 is stably rotated. Can be made.
Furthermore, since the entire apparatus is configured to maintain confidentiality, no odor is dissipated to the surroundings.
[0022]
As described above, the present embodiment has been specifically described in detail. However, the specific configuration is not limited to this embodiment, and design changes and the like within the scope of the present invention are included in the present invention. It is.
[0023]
For example, in the above embodiment, the case of the garbage processing in which the garbage is mixed and stirred has been described. However, the present invention can also be applied to the case where feces such as livestock other than the garbage are recycled as the object to be processed.
[0024]
In the above embodiment, the guide rollers 16 and 17 are engaged with the outer peripheral end surfaces of the rings. Instead, the guide rollers 16 and 17 may be in contact with the inner peripheral end surfaces 131 of the ring members 13 and 14. it can.
[0025]
In addition, as shown in FIG. 6, a U-shaped guide portion 133 may be formed on the periphery of the ring member 132, and a roller 164 may be fitted into the guide portion 133 so as to be rotatably supported.
[0026]
Moreover, in the said embodiment, although the input brewing tank 2 and the discharge tank 3 were the structures adjacent by the partition 4, the input brewing tank which does not have the inlet 20 and the 2nd drive device 20 between both tanks 2 and 3 You may install several tanks which have the same structure as 2 suitably. By adopting such a configuration, it is possible to continuously move the mixing garbage between the tanks by the spiral blades 11 via the transfer window 22 provided in the partition wall 4 between the tanks, thereby continuously mixing and stirring. , It has the effect of enabling processing between multiple tanks.
[0027]
Further, although the discharge tank 3 is connected to the input brewing tank 2 through the partition wall 4, it goes without saying that the input brewing tank 2 alone can be established and used as a garbage disposal apparatus without providing the discharge tank 3. Further, by providing a garbage input port in the discharge tank, it is possible to provide a garbage processing apparatus using only the discharge tank.
[0028]
Further, in order to keep the pitch distance of the spiral blades 11 constant, a support member 40 may be appropriately provided as shown in FIG. This has the effect of avoiding deformation of the spiral blade 11.
[0029]
In addition, the transfer window 22 may be provided with an open / close lid for automatic open / close control on the condition that the temperature, the pressure in the tank, the elapsed time, the fermentation state, etc. are satisfied. In this case, it has the effect of preventing the garbage from moving to the next tank inadvertently.
[0030]
Further, the winding pitch of the spiral blades 11 may be an unequal pitch.
[0031]
In addition, the spiral blade 11 does not have to be one continuous shape as described above, and may be in a divided form that is discontinuous in the middle.
[0032]
Of course, the width of the band-shaped plate material, the interval at which the scraper plate 21 is provided, the angle, and the like can be set as appropriate.
[0033]
Moreover, if it is an apparatus which can manufacture composting material, the kind will be irrelevant and it can apply also to manufacturing apparatuses, such as what is called a fermentation type and a dry type.
[0034]
【The invention's effect】
As described above, according to the first aspect of the present invention, the spiral blade is provided in a floating manner by the rotation support mechanism that surrounds the two drive rotation shafts, and the rotation support mechanism is driven via the drive force transmission mechanism. Therefore, the spiral blade can be rotated without interfering with the rotary blade and the drive rotary shaft, and therefore, the internal space of the charging brewing tank is not narrowed, and a pair of rotating blades that are axially arranged at the bottom of the charging brewing tank However, since it rotates in the cross region, it can be crushed and mixed and stirred even if there is a mass of the object to be processed, and the spiral blade rotates so as to stir and scrape the bottom. In addition to improving the mixing and stirring efficiency due to the synergistic effect, the object to be treated is mixed and stirred from the bottom of the input brewing tank and stirred up, so that the frequency of bringing the decomposed microorganisms into contact with the air can be increased. Temper decomposition treatment becomes possible, an effect capable of suppressing the occurrence of unpleasant fermentation odor.
[0035]
According to the present invention described in claim 2, since the ring member of the rotation support mechanism is supported by the rolling member, the spiral blade can be supported in a floating state without having a rotation shaft in the charging brewing tank, As a result, the rotating blades rotating on the drive rotating shaft and the spiral blade rotating without the rotating shaft can be rotated at the same time, and the mixing and stirring efficiency can be improved regardless of the amount of the object to be processed.
[0036]
Furthermore, since the ring member is driven by winding the chain around the sprocket, the ring member can be reliably rotated, and the effect of improving the processing capacity of mixing and stirring can be achieved.
[0037]
According to the third aspect of the present invention, since the outer peripheral edge of the ring member is held by the collar portion of the roller, the ring portion can be prevented from being displaced in the direction of the horizontal rotation axis, and the spiral blade can be stabilized. The effect that can ensure a smooth rotation.
[0038]
According to the fourth aspect of the present invention, a mixing stirring blade is provided on the stirring rotating shaft formed by extending the driving rotating shaft in the discharging tank provided adjacent to the input brewing tank, and the stirring link mechanism is further scraped off. Since the blades are provided, the workpieces can be transferred from the input brewing tank to the discharge tank via the transfer window and continuously decomposed, so that the efficiency of the decomposition process can be improved and the stirring rotating shaft Since it is shared with the drive rotation shaft, there is an effect that the composting material manufacturing apparatus can be made compact.
[0039]
Furthermore, since the second drive device for driving the spiral blade is provided separately from the first drive device for driving the drive rotation shaft, the spiral blade can be driven separately from the drive rotation shaft, depending on the situation of mixing and stirring. There is an effect that a composting material manufacturing apparatus having a degree of freedom in operation can be obtained, such as performing forward / reverse rotation appropriately regardless of whether or not operation and operation stop can be performed independently.
[0040]
According to the present invention, since the spiral blade provided in the charging brewing tank is supported so that the ring member of the rotation support mechanism can be rotated in a floating state by the rolling member, the processing space in the charging brewing tank can be widened, and consequently The effect which can obtain the manufacturing apparatus of the composting material which can improve mixing stirring efficiency is produced.
[Brief description of the drawings]
FIG. 1 is a front view according to one embodiment of the present invention as seen through the inside.
FIG. 2 is a perspective plan view in FIG. 1;
FIG. 3 is a perspective left side view of FIG. 1;
4 is a perspective right side view in FIG. 1. FIG.
FIG. 5 is an external enlarged perspective view of a rotation support mechanism and a driving force transmission mechanism in the embodiment.
FIG. 6 is a plan view of a modification of the above embodiment.
FIG. 7 is a schematic external perspective view of a second conventional device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Composting material manufacturing apparatus 2 Input brewing tank 3 Discharge tank 4 Bulkheads 5, 6 Drive rotary shaft 8 First drive apparatus 9, 10 Rotary blade 11 Spiral blades 12, 35 Bottom 13, 14 Ring member 16 Guide roller 20 First Double drive device 21 Scrape plate 22 Transfer window 23 Garbage input port 25 Stirring means 26 Discharge port 29 Wrap link mechanism 34 Mixing stirring blades 51, 101 Stirring rotating shaft 161 Collar member 162 Groove

Claims (4)

With axes set in parallel to the driving axis of rotation of two driven by drive means turned foster tank,
A plurality of rotary blades projecting from both drive rotary shafts are rotated so that there is an overlapping area in a plane perpendicular to the drive rotary shaft, and the processing target is put into the charging brewing tank by the rotation. An apparatus for producing a composting material for mixing and stirring an object, wherein the rotary blade is disposed at the bottom of the input brewing tank, and surrounds the rotary blade and is around a rotation axis parallel to the axis of the drive rotation shaft the spiral vanes material shape is spirally wound without a strip so as to rotate the rotating support provided mechanism floatingly in the closing building tank through, between the drive means and the rotary support mechanism in interposed the driving force transmission mechanism further composting material, characterized in that digits set the transfer window for discharging the treated product to be scooped up by the spiral vanes to the outside by driving the rotary support mechanism Manufacturing equipment. It said rotary support mechanism includes a pair of annular ring member which is arranged to rotate the spiral is coupled to both ends of the vane in the same plane and direction of the plane perpendicular to the axis of rotation of the front Stories ring member The composting material manufacturing apparatus according to claim 1, wherein the composting material manufacturing apparatus is formed of a rolling member that supports rotation. The rolling member is formed of a roller, and flanges are provided on both ends of the roller to form a groove having a concave longitudinal section, and both outer peripheral edges of the ring member are held by the ribs. 3. The composting material manufacturing apparatus according to claim 1, wherein the ring member is allowed to rotate, but is configured to restrain movement in the horizontal rotation axis direction. 4. . Adjacent to the input brewing tank, there is a stirring means for stirring the workpiece discharged from the transfer window, and a scraping means for discharging the workpiece stirred by the stirring means to the outside from the discharge port. And a stirring tank having a pair of stirring rotating shafts formed by extending and sharing the two drive rotating shafts, and a mixing stirring blade protruding from the pair of stirring rotating shafts. Further, the scraping means includes a winding link mechanism that moves around the rotation trajectory of the mixing stirring blade, and a plurality of scraping blades provided in the winding link mechanism in parallel with the stirring rotation axis direction. And rotating the scraping blade moving between the scraping blade and the bottom of the discharge tank with a slight gap on the inner surface of the bottom of the discharge tank, while providing the discharge port on the movement trajectory of the scraping blade. It apparatus for producing compost material according to any one of claims 1 to 3, wherein.

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