CA2090164C - Apparatus for mechanically pulverizing and biologically decomposing garbage - Google Patents
Apparatus for mechanically pulverizing and biologically decomposing garbageInfo
- Publication number
- CA2090164C CA2090164C CA002090164A CA2090164A CA2090164C CA 2090164 C CA2090164 C CA 2090164C CA 002090164 A CA002090164 A CA 002090164A CA 2090164 A CA2090164 A CA 2090164A CA 2090164 C CA2090164 C CA 2090164C
- Authority
- CA
- Canada
- Prior art keywords
- horizontal shafts
- garbage
- vanes
- casing
- agitating vanes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010299 mechanically pulverizing process Methods 0.000 title claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 238000005266 casting Methods 0.000 claims abstract description 4
- 238000000855 fermentation Methods 0.000 description 6
- 230000004151 fermentation Effects 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/023—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where both members are moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/70—Safety, emergency conditions or requirements
- F04C2270/72—Safety, emergency conditions or requirements preventing reverse rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
- F05B2270/109—Purpose of the control system to prolong engine life
- F05B2270/1097—Purpose of the control system to prolong engine life by preventing reverse rotation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
An apparatus for mechanically pulverizing and biologically decomposing garbage is disclosed which includes a casing having at a top front portion an inlet opening for casting the garbage thereinto, wherein a motor chamber for receiving a motor gear-speed reduction box and a fan chamber for receiving a ventilation fan are juxtaposed in a top rear portion of the casing, and the casing having therein a fermenting tank having an opening portion at a top and a decomposed garbage outlet openably closed by a cover hinged at a bottom. Upper and lower two horizontal shafts are provided rotatably within the fermenting tank; the upper and lower horizontal shafts are arranged so that rotational paths of agitating vanes mounted on the upper and lower horizontal shafts may cross over as viewed in the axial direction; and the upper and lower two horizontal shafts are drivingly rotated in the same direction and at the same rotational speed by the motor gear-speed reduction box.
Description
209016~
APPARATUS FOR MECHANICALLY PULVERIZING AND
BIOLOGICALLY DECOMPOSING GARBAGE
' BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for mechanically pulverizing and biologically decomposing, and fermenting so-called garbage such as left-over, liquid waste, kitchen garbage discharged from general households and restaurants. In particular, it relates to a disposer for decomposing and processing garbage by ,x; ng the garbage with decomposition medium including sawdusts or wood chips, to which aerial microorganisms have been applied, by using agitating vanes for positive fermentation.
Japanese Utility Model Applications Laid-Open Nos. 63-86892 and 63-189400 show examples of such garbage decomposing and processing apparatus. In the former case, the garbage is cast into the apparatus and pulverized to be introduced into an agitator; the pulverized garbage is mixed with powdery activated additive which has been cast in advance and which is composed mainly of lime, so that ~; moisture contained in the pulverized garbage is reacted with the lime; and the moisture is evaporated and dried by heat generated in accordance with the reaction to thereby powder the pulverized garbage. In the latter case, a horizontal fermentin~ device is used in which a horizontal shaft with a tank having an air supply nozzle is rotatably mounted 20901~
through the tank; a lid is pivotally mounted at an upper portion of the tank; and insulative material is fi'led in the tank wall. In this case, for processing drain or contaminated mad, the lid of the fermenting tank is removed s , , , and material to be processed is cast into the tank through the opening. Thereafter, the lid is attached again, the agitating vanes are rotated intermittently and at the same time, the air is supplied through the air supply nozzle for fermenting and processing.
The case disclosed in the Japanese application No. 63-86892 relates to a system for removing the moisture contained in the garbage and deodorizing bad smell or stench. This system is complicated and expensitve. The system suffers from a problem in processing the discharged material as well as a problem of increased cost for processing since the lime is used. On the o-ther hand, the case disclosed in Japanese application No. 63-189400 relates to a fermenting tank in which a number of air supply nozzles are provided in the tank wall. However, the nozzles are likely to be clogged. In addition, the agitating vanes are used only to mix the garbage but cannot effect the fermenting process for the garbage. If this could be done, the fermenting rate would be slow. As a result, the large-size apparatus is nee~ed. This would lead to an economical problem. Thus, this system would be improper for processing :- , ., .. . . . . ~, . . .
209016~
the garbage.
SUMMARY OF THE INVENTION
Accordingly, in order to overcome the above-noted defects inherent in the prior art, an object of the present invention is to provide an apparatus for mechanically pulverizing and biologically decompsing garbage, in which decomposing medium including sawdusts or would chips to which aerial microorganisms have been applied is added while supplying air to thereby decompose the garbage through pulverization and agitation. The operation is easy and the fermenting decomposing rate is high. In addition, the apparatus is simple in construction and is low in cost for large-scale production.
According to the invention, there is provided an apparatus for mechanically pulverizing and biologically decomposing garbage, comprising a casing having at a top front portion an inlet opening for casting the garbage thereinto, wherein a motor chamber for receiving a motor gear-speed reduction box and a fan chamber for receiving a ventilation fan are juxtaposed in a top rear portion of the casing, and the casing having therein a fermenting tank having an opening portion at a top and a decomposed garbage outlet openably closed by a cover at a bottom. The apparatus is characterized in that upper and lower two horizontal shafts are provided rotatably within the '' ' - 3 - ~
~.
APPARATUS FOR MECHANICALLY PULVERIZING AND
BIOLOGICALLY DECOMPOSING GARBAGE
' BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for mechanically pulverizing and biologically decomposing, and fermenting so-called garbage such as left-over, liquid waste, kitchen garbage discharged from general households and restaurants. In particular, it relates to a disposer for decomposing and processing garbage by ,x; ng the garbage with decomposition medium including sawdusts or wood chips, to which aerial microorganisms have been applied, by using agitating vanes for positive fermentation.
Japanese Utility Model Applications Laid-Open Nos. 63-86892 and 63-189400 show examples of such garbage decomposing and processing apparatus. In the former case, the garbage is cast into the apparatus and pulverized to be introduced into an agitator; the pulverized garbage is mixed with powdery activated additive which has been cast in advance and which is composed mainly of lime, so that ~; moisture contained in the pulverized garbage is reacted with the lime; and the moisture is evaporated and dried by heat generated in accordance with the reaction to thereby powder the pulverized garbage. In the latter case, a horizontal fermentin~ device is used in which a horizontal shaft with a tank having an air supply nozzle is rotatably mounted 20901~
through the tank; a lid is pivotally mounted at an upper portion of the tank; and insulative material is fi'led in the tank wall. In this case, for processing drain or contaminated mad, the lid of the fermenting tank is removed s , , , and material to be processed is cast into the tank through the opening. Thereafter, the lid is attached again, the agitating vanes are rotated intermittently and at the same time, the air is supplied through the air supply nozzle for fermenting and processing.
The case disclosed in the Japanese application No. 63-86892 relates to a system for removing the moisture contained in the garbage and deodorizing bad smell or stench. This system is complicated and expensitve. The system suffers from a problem in processing the discharged material as well as a problem of increased cost for processing since the lime is used. On the o-ther hand, the case disclosed in Japanese application No. 63-189400 relates to a fermenting tank in which a number of air supply nozzles are provided in the tank wall. However, the nozzles are likely to be clogged. In addition, the agitating vanes are used only to mix the garbage but cannot effect the fermenting process for the garbage. If this could be done, the fermenting rate would be slow. As a result, the large-size apparatus is nee~ed. This would lead to an economical problem. Thus, this system would be improper for processing :- , ., .. . . . . ~, . . .
209016~
the garbage.
SUMMARY OF THE INVENTION
Accordingly, in order to overcome the above-noted defects inherent in the prior art, an object of the present invention is to provide an apparatus for mechanically pulverizing and biologically decompsing garbage, in which decomposing medium including sawdusts or would chips to which aerial microorganisms have been applied is added while supplying air to thereby decompose the garbage through pulverization and agitation. The operation is easy and the fermenting decomposing rate is high. In addition, the apparatus is simple in construction and is low in cost for large-scale production.
According to the invention, there is provided an apparatus for mechanically pulverizing and biologically decomposing garbage, comprising a casing having at a top front portion an inlet opening for casting the garbage thereinto, wherein a motor chamber for receiving a motor gear-speed reduction box and a fan chamber for receiving a ventilation fan are juxtaposed in a top rear portion of the casing, and the casing having therein a fermenting tank having an opening portion at a top and a decomposed garbage outlet openably closed by a cover at a bottom. The apparatus is characterized in that upper and lower two horizontal shafts are provided rotatably within the '' ' - 3 - ~
~.
2~9Q16~
fermenting tank; the upper and lower horizontal shafts are arranged so that rotational paths of agitating vanes mounted on the upper and lower horizontal shafts may cross over as viewed in the axial direction; and -the upper and lower two horizontal shafts are drivingly rotated in the same direction and at the same rotational speed by the motor gear-speed reduction box. The unique plural agitating vanes mountsd on the upper and lower two horizontal shafts are curved to be arcuately concave in the rotational direction;
a cross-section of each of said agitating vanes is substantially in the form of a V-shape opened in a direction opposite to the rotational direction; a surface of each outside vane located close to a wall of the fermenting tank is substantially in parallel with the wall of the fermenting tank; the vanes are arranged at a constant interval without overlapping as viewed in the side direction with respect to the upper and lower horizontal shaft; and the vanes of the upper and lower horizontal shafts are rotated in a crossover manner as viewed in the axial direction. Each of the agitating vanes has lateral expansions at its distal end.
According to the present invention, since the apparatus has upper and lower two-stage agitating vanes, it is possible to same the installation space in comparison with the conventional apparatus. Also, according to the invention, since the agitating vanes are arranged to cross over in the mid-stage between the upper and lower horizontal shafts, the moving directions of the vanes of the upper and lower horizontal shafts are opposite to each other, the respective vanes are curved to be arcuately concave in the rotational direction, and the cross-section of each vane is substantially in the form of a V-shape, it is possible to readily pulverize even large-size garbage. Also, the mixture between the garbage to be continuously cast and the fermented garbage residual in the tank is well balanced to effect satisfactory dispersion of the aerial microorganisms.
Since the vanes have the above-noted shapes, it is possible to well perform the air entrainment to positively feed the air for fermentation. In addition, since the ~es~ ,~osition medium is fed for accelerating the decomposition, the fermentation saturation rate is high and the fermentation decomposition effect is accelerated.
Thus, according to the present invention, the fermentation decomposition rate is high. Therefore, a relatively large amount of garbage may be processed with a small size apparatus. The device of the invention is simple in structure and is suitable for large-scale production.
Also, the vanes have unique shapes so as to readily enter into the garbage and decomposition medium piled on the bottom of the fermenting tank without compression of the garbage and medium. The agitating resistance of each vane , ' ~' 209016~ "
is low. This would lead to a low torque drive relative to the conventional flat agitating vanes. The power needed to deive the vanes may be low. The cost therefor may be reduced. Accordingly, the apparatus of the invention is also useful even for general domestic use and for small restaurants.
BRIEF DESCRIPTION OF THE DRAWINGS
In the accompanying drawings:
Fig. 1 is a cross-sectional view showing an apparatus in accordance with one embodiment of the invention;
Fig. 2 is a cross-sectional view taken along the line II-II of Fig. l;
Fig. 3 is a side-elavational view of the casing shown in Fig. 1;
Fig. 4 is a view of the vane as viewed in the axial direction;
Fig. 4A is a cross-sectional view taken along line A-A
~; of Fig. 4;
Fig. 4B is a cross-sectional view taken along line B-B -of Fig. 4;
Fig. 4C i9 a cross-sectional view taken along line C-C
of Fig. 4;
Fig. 4D is a cross-sectional view taken along line D-D
of Fig. 4;
~ Flg. 5 ls a side ele~ational viev showing ag1tat1ng ; 6 : ' .
2091D1~
vanes different from those shown in the first embodiment;
' and Fig. 6 is a view showing the arrangement of the agitating vanes shown in Fig. 5.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
; The present invention will now be described wi-th reference to the accompanying drawings which show one embodiment of an apparatus for mechanically pulverizing and biologically decomposing garbage.
In Figs. 1 to 3, a casing 1 has a substantially parallelepiped shape. A garbage casting inlet la is formed on the front side of its top surface. A lid 2 is rotatably hinged by a hinge 3 for the inlet la. Leg pieces 4 are fixedly mounted on a bottom of the casing 1.
On the rear side of the upper portion of the caseing 1, there are juxtaposed a motor chamber 6 for receiving a speed-reduction gear box 5 with a motor for rotating agitating vanes and a ~an chamber 8 for receiving a ventilation fan 7. A number of vent holes 9 are formed on the ventilation side of the fan Ghamber 8.
A fermenting tank 10 is installed inside the casing 1.
The fermenting tank 10 has a semicircular cross section at the bottom. A discharge outlet lOa for the decomposed material is formed in the bottom. A cover 12 is detachably mounted to the discharge outlet 10a. Shafts 14 and 15 and 209016~
horizontal hollow shafts 30 and 31 fixed to the shafts 14 and 15 are rotatably supported to the fermenting tank 10 by bearings 13. Sprockets 16 and 17 having the same diameter are mounted a-t ends of the shafts 14 and 15. A chain is laid between the sprockets 16 and 17. Another sprocket 19 is mounted further outside of the sprocket 16. A chain 21 is laid between the sprocket 19 and a sprocket 20 mounted on an output shaft 5a of the speed reduction gear box 5. With such an arrangement, the drive of the speed reduction gear box causes the shafts 14, 15, 30 and 31 to rotate at the same rotational speed in the same direction.
The shape, structure and positional relationship of agitating vanes 22 and 23 mounted on circumferential surfaces of the upper and lower horizontal shafts 30 and 31 are the same. In the embodiment shown, the five agitating vanes are composed of three inside vanes 22 and two outside vanes 23. The agitating vanes are arranged at a constant interval along the axial direction on the circumferential surfaces of the respective horizontal shafts 30 and 31 and at 72~ in the radial direction as viewed in the axial direction, so that the vanes are not overlapped with each other. A distance between the horizontal shafts 30 and 31 is set so that tip ends of the upper and lower agitating vanes will be close to each other, and the upper and lower agitating vanes 22 and 23 will rotate while passing through . : . . - . . . :. . .~ . " . . ; :
.. - : . ., . . ~ . -, 20901~
each other hetween the horizontal shafts 30 and 31.
Fig. 4 shows the five agitating vanes mounted on the single shaft and shows the partial cross-section of each vane.
Fig. 4A is a cross-section taken along the line A-A, Fig. 4B is a cross-section taken along the line B-B, Fig. 4C
is a cross-section -taken along the line C-C and Fig. 4D is a cross-section taken along the line D-D.
Each agitating vane is arcuately curved in the rota-tional direction. Its cross-section is V-shaped to open in a direction opposite to the rotational direction as best shown in Fig. 4D. The three inside agitating vanes 22 have tips with right and left expansions 22a to thereby enhance the agitating effect as shown in Fig. 4C. The two outside agitating vanes have a cross-section of a V-shape or a U-shape with surfaces 23b of the vanes on the tank wall lOa being kept substantially in parallel with the tank wall lOa as shown in Fig. 4A. Projections 23c are formed at several positions of the surfaces 23b of the agitating vanes 23 on the tank wall lOa side for scraping material stuck on the wall. Since the moving directions of the upper and lower agitating vanes 22 and 23 are opposite to each other between the horizontal shafts 30 and 31, the upper and lower agitating vanes 22 and 23 work upon the garbage and the like so that even large mass of garbage may be well pulverized. ~
: . .
_ g _ 209016~
Since the respective agitating vanes 22 and 23 have the shape arcuate toward the rotational direction, the air will flow in the rotational direction of the vanes. In the meantime, the entrainment of the air into -the garbage is well carried out so that the air is fed to the aerial bacterium. Furthermore, since the respective vanes 22 and 23 have the cross-section of V-shape open in the direction opposite to the rotational direction so that the invasion resistance against -the garbage and the like laid on the bottom is low, it is possible to operate the apparatus at a low torque, which needs a small amount of power.
In operation of the apparatus, decomposing medium such as sawdusts to which various kinds of bacterium and water are applied is added to the garbage, -thereby further accelerating the fermentation of the garbage by the aerial activated microorganisms.
The present invention is not limited to the above~
described embodiments. For example, a short agitating vane 122 and a long agitating vane 22 may be mounted on the hollow shaft 30 as shown in Fig. 5. Also, the agitating vanes of the upper horizontal shaft 30 and the vanes of the lower horizontal shaft 31 may be arranged in a staggered ~nner as shown in Fig. 6.
-- 10 -- .
,--: , ,. : , :~ ,, . , ., :
fermenting tank; the upper and lower horizontal shafts are arranged so that rotational paths of agitating vanes mounted on the upper and lower horizontal shafts may cross over as viewed in the axial direction; and -the upper and lower two horizontal shafts are drivingly rotated in the same direction and at the same rotational speed by the motor gear-speed reduction box. The unique plural agitating vanes mountsd on the upper and lower two horizontal shafts are curved to be arcuately concave in the rotational direction;
a cross-section of each of said agitating vanes is substantially in the form of a V-shape opened in a direction opposite to the rotational direction; a surface of each outside vane located close to a wall of the fermenting tank is substantially in parallel with the wall of the fermenting tank; the vanes are arranged at a constant interval without overlapping as viewed in the side direction with respect to the upper and lower horizontal shaft; and the vanes of the upper and lower horizontal shafts are rotated in a crossover manner as viewed in the axial direction. Each of the agitating vanes has lateral expansions at its distal end.
According to the present invention, since the apparatus has upper and lower two-stage agitating vanes, it is possible to same the installation space in comparison with the conventional apparatus. Also, according to the invention, since the agitating vanes are arranged to cross over in the mid-stage between the upper and lower horizontal shafts, the moving directions of the vanes of the upper and lower horizontal shafts are opposite to each other, the respective vanes are curved to be arcuately concave in the rotational direction, and the cross-section of each vane is substantially in the form of a V-shape, it is possible to readily pulverize even large-size garbage. Also, the mixture between the garbage to be continuously cast and the fermented garbage residual in the tank is well balanced to effect satisfactory dispersion of the aerial microorganisms.
Since the vanes have the above-noted shapes, it is possible to well perform the air entrainment to positively feed the air for fermentation. In addition, since the ~es~ ,~osition medium is fed for accelerating the decomposition, the fermentation saturation rate is high and the fermentation decomposition effect is accelerated.
Thus, according to the present invention, the fermentation decomposition rate is high. Therefore, a relatively large amount of garbage may be processed with a small size apparatus. The device of the invention is simple in structure and is suitable for large-scale production.
Also, the vanes have unique shapes so as to readily enter into the garbage and decomposition medium piled on the bottom of the fermenting tank without compression of the garbage and medium. The agitating resistance of each vane , ' ~' 209016~ "
is low. This would lead to a low torque drive relative to the conventional flat agitating vanes. The power needed to deive the vanes may be low. The cost therefor may be reduced. Accordingly, the apparatus of the invention is also useful even for general domestic use and for small restaurants.
BRIEF DESCRIPTION OF THE DRAWINGS
In the accompanying drawings:
Fig. 1 is a cross-sectional view showing an apparatus in accordance with one embodiment of the invention;
Fig. 2 is a cross-sectional view taken along the line II-II of Fig. l;
Fig. 3 is a side-elavational view of the casing shown in Fig. 1;
Fig. 4 is a view of the vane as viewed in the axial direction;
Fig. 4A is a cross-sectional view taken along line A-A
~; of Fig. 4;
Fig. 4B is a cross-sectional view taken along line B-B -of Fig. 4;
Fig. 4C i9 a cross-sectional view taken along line C-C
of Fig. 4;
Fig. 4D is a cross-sectional view taken along line D-D
of Fig. 4;
~ Flg. 5 ls a side ele~ational viev showing ag1tat1ng ; 6 : ' .
2091D1~
vanes different from those shown in the first embodiment;
' and Fig. 6 is a view showing the arrangement of the agitating vanes shown in Fig. 5.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
; The present invention will now be described wi-th reference to the accompanying drawings which show one embodiment of an apparatus for mechanically pulverizing and biologically decomposing garbage.
In Figs. 1 to 3, a casing 1 has a substantially parallelepiped shape. A garbage casting inlet la is formed on the front side of its top surface. A lid 2 is rotatably hinged by a hinge 3 for the inlet la. Leg pieces 4 are fixedly mounted on a bottom of the casing 1.
On the rear side of the upper portion of the caseing 1, there are juxtaposed a motor chamber 6 for receiving a speed-reduction gear box 5 with a motor for rotating agitating vanes and a ~an chamber 8 for receiving a ventilation fan 7. A number of vent holes 9 are formed on the ventilation side of the fan Ghamber 8.
A fermenting tank 10 is installed inside the casing 1.
The fermenting tank 10 has a semicircular cross section at the bottom. A discharge outlet lOa for the decomposed material is formed in the bottom. A cover 12 is detachably mounted to the discharge outlet 10a. Shafts 14 and 15 and 209016~
horizontal hollow shafts 30 and 31 fixed to the shafts 14 and 15 are rotatably supported to the fermenting tank 10 by bearings 13. Sprockets 16 and 17 having the same diameter are mounted a-t ends of the shafts 14 and 15. A chain is laid between the sprockets 16 and 17. Another sprocket 19 is mounted further outside of the sprocket 16. A chain 21 is laid between the sprocket 19 and a sprocket 20 mounted on an output shaft 5a of the speed reduction gear box 5. With such an arrangement, the drive of the speed reduction gear box causes the shafts 14, 15, 30 and 31 to rotate at the same rotational speed in the same direction.
The shape, structure and positional relationship of agitating vanes 22 and 23 mounted on circumferential surfaces of the upper and lower horizontal shafts 30 and 31 are the same. In the embodiment shown, the five agitating vanes are composed of three inside vanes 22 and two outside vanes 23. The agitating vanes are arranged at a constant interval along the axial direction on the circumferential surfaces of the respective horizontal shafts 30 and 31 and at 72~ in the radial direction as viewed in the axial direction, so that the vanes are not overlapped with each other. A distance between the horizontal shafts 30 and 31 is set so that tip ends of the upper and lower agitating vanes will be close to each other, and the upper and lower agitating vanes 22 and 23 will rotate while passing through . : . . - . . . :. . .~ . " . . ; :
.. - : . ., . . ~ . -, 20901~
each other hetween the horizontal shafts 30 and 31.
Fig. 4 shows the five agitating vanes mounted on the single shaft and shows the partial cross-section of each vane.
Fig. 4A is a cross-section taken along the line A-A, Fig. 4B is a cross-section taken along the line B-B, Fig. 4C
is a cross-section -taken along the line C-C and Fig. 4D is a cross-section taken along the line D-D.
Each agitating vane is arcuately curved in the rota-tional direction. Its cross-section is V-shaped to open in a direction opposite to the rotational direction as best shown in Fig. 4D. The three inside agitating vanes 22 have tips with right and left expansions 22a to thereby enhance the agitating effect as shown in Fig. 4C. The two outside agitating vanes have a cross-section of a V-shape or a U-shape with surfaces 23b of the vanes on the tank wall lOa being kept substantially in parallel with the tank wall lOa as shown in Fig. 4A. Projections 23c are formed at several positions of the surfaces 23b of the agitating vanes 23 on the tank wall lOa side for scraping material stuck on the wall. Since the moving directions of the upper and lower agitating vanes 22 and 23 are opposite to each other between the horizontal shafts 30 and 31, the upper and lower agitating vanes 22 and 23 work upon the garbage and the like so that even large mass of garbage may be well pulverized. ~
: . .
_ g _ 209016~
Since the respective agitating vanes 22 and 23 have the shape arcuate toward the rotational direction, the air will flow in the rotational direction of the vanes. In the meantime, the entrainment of the air into -the garbage is well carried out so that the air is fed to the aerial bacterium. Furthermore, since the respective vanes 22 and 23 have the cross-section of V-shape open in the direction opposite to the rotational direction so that the invasion resistance against -the garbage and the like laid on the bottom is low, it is possible to operate the apparatus at a low torque, which needs a small amount of power.
In operation of the apparatus, decomposing medium such as sawdusts to which various kinds of bacterium and water are applied is added to the garbage, -thereby further accelerating the fermentation of the garbage by the aerial activated microorganisms.
The present invention is not limited to the above~
described embodiments. For example, a short agitating vane 122 and a long agitating vane 22 may be mounted on the hollow shaft 30 as shown in Fig. 5. Also, the agitating vanes of the upper horizontal shaft 30 and the vanes of the lower horizontal shaft 31 may be arranged in a staggered ~nner as shown in Fig. 6.
-- 10 -- .
,--: , ,. : , :~ ,, . , ., :
Claims (4)
1. An apparatus for mechanically pulverizing and biologically decomposing garbage, comprising a casing having at a top front portion an inlet opening for casting the garbage thereinto, wherein a motor chamber for receiving a motor gear-speed reduction box and a fan chamber for receiving a ventilation fan are juxtaposed in a top rear portion of said casing, and said casing having therein a fermenting tank having an opening portion at a top and a decomposed garbage outlet openably closed by a cover hinged at a bottom, said apparatus comprising the improvement wherein upper and lower two horizontal shafts are provided rotatably within said fermenting tank; said upper and lower horizontal shafts are arranged so that rotational paths of agitating vanes mounted on said upper and lower horizontal shafts may cross over in the mid-stage between said horizontal shafts and said upper and lower two horizontal shafts are drivingly rotated in the same direction and at the same rotational speed by said motor gear-speed reduction box.
2. The apparatus according to claim 1, wherein the plural agitating vanes mounted on said upper and lower two horizontal shafts are curved to be arcuately concave in the rotational direction; a cross-section of each of said agitating vanes is substantially in the form of a V-shape opened in a direction opposite to the rotational direction;
a surface of each outside vane located close to a wall of the fermenting tank is substantially in parallel with the wall of the fermenting tank; said vanes are arranged at a constant interval and in a radial direction without crossover as viewed in the axial direction with respect to one of said upper and lower horizontal shaft; and the vanes of said upper and lower horizontal shafts are rotated in a crossover manner.
a surface of each outside vane located close to a wall of the fermenting tank is substantially in parallel with the wall of the fermenting tank; said vanes are arranged at a constant interval and in a radial direction without crossover as viewed in the axial direction with respect to one of said upper and lower horizontal shaft; and the vanes of said upper and lower horizontal shafts are rotated in a crossover manner.
3. The apparatus according to claim 1, wherein each of said agitating vanes has lateral expansions at its distal end.
4. The apparatus according to claim 2, wherein each of said agitating vanes has lateral expansions at its distal end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4-73714 | 1992-10-22 | ||
| JP7371492U JP2592267Y2 (en) | 1992-10-22 | 1992-10-22 | Garbage decomposition equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2090164A1 CA2090164A1 (en) | 1994-04-23 |
| CA2090164C true CA2090164C (en) | 1998-05-19 |
Family
ID=13526170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002090164A Expired - Fee Related CA2090164C (en) | 1992-10-22 | 1993-02-23 | Apparatus for mechanically pulverizing and biologically decomposing garbage |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2592267Y2 (en) |
| KR (1) | KR960008076B1 (en) |
| CA (1) | CA2090164C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4328930B2 (en) * | 2000-06-22 | 2009-09-09 | 幸一 吉田 | Garbage disposal equipment |
| KR100832914B1 (en) * | 2007-09-06 | 2008-05-28 | 주식회사 영도테크 | Disposer for food waste |
| CN111054731A (en) * | 2019-12-27 | 2020-04-24 | 浙江布莱蒙农业科技股份有限公司 | A agitating unit for refuse treatment |
-
1992
- 1992-10-22 JP JP7371492U patent/JP2592267Y2/en not_active Expired - Lifetime
-
1993
- 1993-01-07 KR KR1019930000095A patent/KR960008076B1/en not_active IP Right Cessation
- 1993-02-23 CA CA002090164A patent/CA2090164C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634784U (en) | 1994-05-10 |
| JP2592267Y2 (en) | 1999-03-17 |
| KR960008076B1 (en) | 1996-06-19 |
| KR940008758A (en) | 1994-05-16 |
| CA2090164A1 (en) | 1994-04-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |