JP2002355642A - Garbage treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extend the lives of an oil seal and a bearing without needing a heater for heating, to facilitate the discharge of garbage after being treated from a garbage discharge opening, and to curtail a work time. SOLUTION: A garbage treatment apparatus has a treatment tank main body 2 in which a garbage supply opening 2a is formed in the ceiling part, and a discharge opening 2c for taking out the treated garbage is formed in the side, a rotary shaft 5 which is rotated by a driving means 13 and extends approximately vertically upward while making its upper half part 5a penetrate the bottom part of the main body 2, and agitation blades 6a-6e which extend in the direction approximately perpendicular to the rotary shaft 5 and mix/ agitate the garbage in the main body 2. The lower half part 5b of the rotary shaft 5 existing below the bottom part 2f of the treatment tank main body is supported in a cantilever state by the first bearing support part 8 formed in the bottom part 2f of the main body 2 and the second bearing support part 10 formed below the first bearing support part 8, and the rotary shaft 5 existing between the first bearing support part 8 and the second bearing support part 10 is driven by the driving means 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage processing apparatus, and more particularly to a garbage processing apparatus which does not require a heater, does not generate a large amount of steam due to high-temperature heating, and can easily remove garbage after processing. It relates to improvement of the device.

[0002]

2. Description of the Related Art A large amount of food waste is released from schools, cafeterias of various facilities, supermarkets, restaurants, and fruit and vegetable markets.
It is not desirable from the viewpoint of effective use of environmental resources,
It can also cause environmental pollution. Therefore, there is an urgent need to develop a technology for recycling these garbage and reusing them as organic fertilizer. For example, in the garbage processing apparatus described in Japanese Patent Application Laid-Open No. 2000-288508 (hereinafter referred to as “conventional apparatus”), a heater 02 is wired on the side and bottom of the processing tank 01, and a motor 03 is provided in the processing tank 01. , A rotating shaft 04 that rotates in the normal and reverse directions is provided. This rotation axis 0
A plurality of stirring blades 04a are attached to 4 with even phases. The garbage put into the treatment tank 01 is mixed and stirred by the stirring blades 04a, pulverized, and when the temperature rises to about 100 ° C., water is generated from the garbage as water vapor. This vapor is sucked by the blower 05 as an atmospheric gas, meanders through the condenser 06, and is separated into moisture and gas in the liquid separation tank 07. The gas is sucked by the blower 05 as it is, recirculated to the processing tank 01 through the circulation path 08 and returned. The controller 09 controls the forward / reverse rotation of the stirring blade 04a, and starts the forward / reverse rotation by determining that the temperature sensor 010 provided in the circulation path 08 has dropped to a predetermined temperature.
Note that 011 is a cooling fan for cooling the condenser 06, and 012 is a garbage take-out port.

As described above, in the conventional apparatus, in order to dry and reduce the volume of the garbage, the garbage in the processing tank 01 is treated at a high temperature by the heater 02 for heating, so that the garbage is dried more quickly. In order to prevent the crushed pieces of the lump from adhering to the stirring blades 04a and accompanying the garbage, the stirring shaft 04a is used.
To rotate forward and reverse. In order to process a large amount of steam generated by high-temperature heating, a fan 011 for cooling the condenser 06 is provided.

[0004]

However, the above-mentioned conventional apparatus has the following various problems.
That is, the temperature in the processing tank 01 generated by the heater 02 becomes almost 100 ° C., and the entire processing apparatus is heated, so that the oil seal and the bearing of the rotating shaft 04 have reduced durability due to thermal influence. . Elements 06, 07, 0 for processing a large amount of steam generated by high-temperature heating
8 mag is required. Further, the control by the controller 09 for rotating the stirring blade 04a in the normal direction and the reverse direction is complicated, and the frequency of occurrence of a failure increases accordingly. Further, in the transition period in which the operation of switching between the normal rotation and the reverse rotation is performed, the power consumption is increased due to the stirring resistance. Further, since the bottom side of the garbage extraction port 012 is not flush with the bottom 01a of the processing tank 01 and is provided so as to have a height difference, it takes time to take out and discharge the processed garbage. There were various problems, such as going around.

The present invention has been devised in view of the above-mentioned problems, and aims to extend the life of an oil seal and a bearing without requiring a heater for heating, and to obviate the need for a processing device for generated steam. It is another object of the present invention to provide a garbage disposal apparatus which facilitates removal of garbage after processing from a garbage discharge port and shortens the operation time.

[0006]

The present invention has the following configuration to achieve the above object. That is, claim 1
The garbage disposal apparatus according to the described invention has a processing garbage main body having a garbage input port on a ceiling portion, and a discharge port on a side surface for taking out garbage after being processed, which is rotated by driving means, and A half shaft is provided with a rotating shaft extending substantially vertically upward through the bottom of the processing tank body, and a stirring blade extending in a direction substantially perpendicular to the rotating shaft and mixing and stirring garbage in the processing tank body. In the garbage disposal apparatus, the lower half of the rotating shaft below the bottom of the processing tank body is provided with a first bearing support provided on the bottom of the processing tank main body, and further below the first bearing support. While being supported by the second bearing support in a cantilever state, the first bearing support and the second
The rotating shaft existing between the bearing and the bearing support is driven by the driving means. According to the first aspect of the present invention, since the rotating shaft is supported by the first bearing support and the second bearing support, it is stably supported. In addition, since the driving force of the driving means acts on a mechanically stable portion between the first bearing support and the second bearing support, the rotation of the rotating shaft is stable without rotation.

According to a second aspect of the present invention, there is provided the garbage disposal apparatus according to the first aspect, wherein the mounting angle of the stirring blade with respect to the rotation shaft is set to 30 with respect to the rotation surface of the stirring blade.
It is characterized in that it is set in the range of degrees to 50 degrees. According to the second aspect of the invention, when the stirring blade rotates in the garbage, it rotates with a small resistance.

[0008] The invention described in claim 3 is claim 1 or 2.
In the garbage disposal apparatus described above, a lifting means for lifting the rotation shaft from the processing tank main body is detachably provided on the rotation shaft. According to the third aspect of the invention, when the rotary shaft integrated with the stirring blade is lifted, the rotary shaft is carried out of the processing tank by lifting the lifting means.

According to a fourth aspect of the present invention, there is provided the garbage disposal apparatus according to any one of the first to third aspects, wherein a caster for movement and an adjuster for height adjustment are provided in the processing tank main body. It is characterized by the following. According to the fourth aspect of the present invention, when the garbage disposal apparatus is moved, the garbage disposal apparatus can be easily moved to the installation place by the moving caster, and the level of the garbage disposal apparatus is adjusted by the height adjustment adjuster. An unreasonable twisting force is suppressed from acting on the first and second bearing supporting portions of the shaft.

According to a fifth aspect of the present invention, there is provided the garbage disposal apparatus according to any one of the first to fourth aspects, wherein the rotary shaft is formed to have a square cross section and the stirring blade is rotated by the rotary shaft. It is characterized by being exchangeably fastened to the shaft with bolts. According to the fifth aspect of the present invention, since the rotating shaft is formed in a square cross section, the mounting root of the stirring blade can be easily mounted on the flat surface of the rotating shaft. Replacement and repair becomes easier.

According to a sixth aspect of the present invention, there is provided the garbage disposal apparatus according to any one of the first to fifth aspects, wherein the stirring blade provided at a position close to the bottom of the processing tank main body has at least two. And the outlet is provided so as to be flush with the bottom.
According to the sixth aspect of the present invention, since the bottom portion is formed on the same surface as the discharge port, the garbage can be scraped out from the discharge port without being left behind. Also, since there are multiple stirring blades,
The scraping of garbage is also efficient.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in FIGS. FIG. 1 is a front view showing the entire configuration of the garbage processing apparatus according to the embodiment, and FIG.
1 is a plan view of FIG. 1, FIG. 3 is an enlarged view of an essential part in a part III of FIG. 1, FIG. 4 is an enlarged view of an essential part in an IV part of FIG. 1, FIG. FIG. 2 is an enlarged view of a main part of a foot portion of the processing tank of FIG. 1. In the drawing, reference numeral 1 generally indicates a garbage processing apparatus having a cylindrical processing tank main body 2, and mainly includes a processing tank main body 2 (hereinafter, referred to as a "stirring tank").
), A rotating shaft 5, a stirring blade 6, and driving means.

The stirring tank, that is, the processing tank body 2 will be described.
2a is a garbage input port provided on the ceiling of the processing tank body 2,
2b is a loading lid for opening and closing the loading port 2a, 2c is a rectangular discharge port for removing processed garbage provided on the side surface of the processing tank body 2, 2d is a discharging lid for opening and closing the discharging port 2c, and 2e is a ceiling portion. A gas outlet (air rising pressure) generated during the garbage fermentation treatment provided at the air outlet is guided to a deodorizer (not shown). Reference numeral 3 denotes a heat retaining panel provided so as to surround the periphery of the processing tank main body 2, which is formed of a material having heat insulating properties such as glass wool and seals to prevent odor from leaking to the outside. Further, the bottom 2f of the processing tank main body 2 is formed at a height substantially flush with the lower part of the discharge port 2c to facilitate scraping out garbage. 2 g is a hemp bag set in the discharge port 2 c, which is filled with garbage after the semi-fermented treatment. In addition, packing 2h is attached around the charging lid 2b and the discharging lid 2d, and the inside of the processing tank body 2 is completely shut off from the outside by covering the packing 2h.

Reference numeral 5 denotes a rotary shaft extending substantially vertically through the center of the bottom 2f of the processing tank body 2, and an upper half 5a of a hollow body formed in a square cross section facing the processing tank body 2. When,
This upper half 5a is a solid lower half 5b whose lower end is welded.
And are formed integrally.

A stirring blade 6 extending to a position close to the inner surface of the processing tank main body 2 in a direction substantially perpendicular to the upper half 5a is fastened to the upper half 5a of the rotating shaft 5 by bolts 7.
The stirring blades 6 are provided in four stages in the vertical direction. That is, two lowermost (first-stage) stirring blades 6a and 6b at positions substantially in contact with the bottom 2f are provided on the same plane at an interval of 180 degrees from each other, and head upward from the subsequent second stage. The stirring blades 6c to 6e in the fourth stage are provided with a phase shift of 90 degrees from each other. Each of the stirring blades 6a to 6e is fastened to the rotating shaft 5 at an inclination angle of 40 degrees with respect to the rotation direction,
The garbage and the bio-bacteria move by convection to facilitate mixing and stirring. An appropriate reinforcing member is provided on the back surfaces of the stirring blades 6a to 6e.

On the other hand, the lower half 5b has a flange 5c above it.
Is provided, and the lower end of the upper half portion 5a is seated thereon and welded to be integrated with the upper half portion 5a. 8 is the lower half 5b
And a first bearing support 10 provided between the fixed boss 8d attached to the bottom frame 9 of the processing tank body 1 and the lower half 5
b and a second bearing supporting portion provided between the foot frame 11 and each of the supporting portions 8 and 10 is an inner race 8 fitted to the lower half portion 5b.
a, 10a and outer rings 8b, 10b fixed to the frames 9, 11 side. 8c is a boss 8 for fixing the outer ring 8b.
d, a packing provided between the lower half member 5b and the fixed boss 8d, and a seal 8f provided between the fixed boss 8d and the lower frame 9, and the packing 8e and the seal 8f are provided. This prevents moisture from the garbage from leaking to the outside. Further, the flange 5c and the fixed boss 8
By providing a minute gap between d and the packing 8e, a passage that easily exhibits a labyrinth effect is formed, so that water hardly flows to the packing 8e. Thus, the upper half 5a of the rotating shaft 5 is connected to the first and second bearing support portions 8, 1
0, it is supported in a cantilever shape, and stably rotates in the stirring tank 2 with respect to a thrust acting on the rotating shaft 5 and a radial load.

The driving means will be described. The components of the driving means include a sprocket 12 attached to the lower half 5b between the first bearing support 8 and the second bearing support 10, a motor 1
3. Sprockets 14 and 2 provided on the motor 13 side
It consists of a chain 15 wound between two sprockets 12,14. The driving force of the motor 13 is
The stirring blade 6 is rotated in the processing tank main body 2 through the rotation shaft 5.

In FIG. 5, a female screw 5 for detachably attaching a lifting means (not shown) made of, for example, an eyebolt is attached to a quadrangular pyramid 5d at the upper end of the upper half 5a of the rotating shaft 5.
e is formed. The lifting means is removed when processing garbage, but when the rotary shaft 5 and the stirring blade 6 are inspected and repaired and replaced, the female screw 5 is used.
e and screwed and fixed thereto, and a hook of a crane is hooked and hung on the screw to lift it out of the processing tank body 2.

In FIG. 6, the lower frame 9 of the processing tank main body 2 is composed of casters 16 and rollers 17 for facilitating transportation and movement, and, for example, bolts and nuts that are stably installed by adjusting the height difference between installation locations. An adjuster 18 is provided.

An operation system of the garbage disposal apparatus will be described. The processing time of the garbage is 24 hours, the stirring time is 20 minutes in total, and the operation is stopped without stirring the stirring blades 6 in other times. The rotation shaft 5 is set so as to rotate only forward and not rotate reversely. Sensors for safely performing automatic operation are provided at the garbage inlet 2a and the outlet 2c, and the drive of the motor 13 is automatically stopped by opening the inlet lid 2b and the outlet lid 2d. An operation panel (not shown) is provided with an inching rotary switch for freely switching the rotation of the stirring blade 6 by an operator and performing a slight rotation, and controls the rotation of the stirring blade 6 to take out garbage. To make it easier.

The operation of the embodiment will be described. Input lid 2b
Is opened and the garbage is put into the treatment tank main body 2 together with sawdust or rice hulls carrying the bio-bacterium. The closing lid 2b is closed, and the motor 13 is driven by the automatic operation switch of the operation panel. Then, as the rotating shaft 5 rotates, the stirring blade 6
a to 6e rotate, and the garbage is mixed and stirred. At this time, the raw garbage is stirred while being fermented at a fermentation temperature of about room temperature with the aid of bio-bacterium. The time between the stirring and the non-stirring is arbitrarily set by a timer, but when 24 hours have elapsed, the power supply to the motor 13 is stopped and the processing operation is stopped. Next, the discharge lid 2d is opened, and while the rotation of the stirring blade is manually controlled by the same rotary switch on the operation panel, the raw garbage is taken out, packed in a hemp bag 2g, and discharged and transported. Thus, the processing of the garbage ends.

According to the present embodiment, the stirring tank, that is, the processing tank body 2 is sealed from the outside by the heat retaining panel 3, and the packing 2 provided around the charging lid 2b and the discharging lid 2d.
Because of the seal of h, the fermentation odor does not leak to the outside, and an environment favorable to the fermentation of garbage can be created. In addition, since the stirring blades 6a to 6e have an inclination angle of 40 degrees and are attached to the rotating shaft 5 in a helical manner with a phase difference of 90 degrees, garbage and bio-germs efficiently move by convection. There is an effect that the mixing and stirring process can be performed in a short time. In addition, since the rotating shaft 5 of the stirring blade 6 is rotatably supported on the bottom 2f side in a cantilever state, a free space is formed on the ceiling of the processing tank main body 2, so that not only can the inlet 2a be enlarged, Deodorizers and other accessories can be installed freely. Further, when the stirring blades 6a to 6e are worn or deformed and need to be replaced, they can be easily replaced by removing the bolt 7. In addition, since the rotating shaft 5 is supported at intervals by the first and second two bearing supporting portions 8 and 10, the swing of the rotating shaft 5 can be satisfactorily avoided. In addition, since the packing 8e and the seal 8f are provided around the rotary shaft 5, it is possible to prevent moisture from the garbage from leaking to the outside. Further, since the lower part of the discharge port 2c is formed on the same surface as the bottom part 2f of the processing tank body 2, it is easy to discharge the garbage after the processing, and there is no discharge residue. Further, since the processing tank body 2 is not heated to a high temperature by heating with a heater as in the conventional apparatus, the processing tank body 2, the packing 8e, the seal 8f, the packing 2h, and the bearing support portions 8, 10
Life can be extended. Further, since the lower frame 9 of the processing tank main body 2 is provided with the casters 16 and the rollers 17 and the adjuster 18, the garbage disposal apparatus can be easily transported and moved by itself, and the adjuster 1 can be easily installed at the installation location.
By adjusting 8, the height can be finely adjusted. When the rotating shaft 5 or the stirring blade 6 is to be maintained and inspected, the ceiling cover is opened, a lifting means (eye bolt) is screwed into the female screw portion 5e, and a hook of a crane is hooked on the eye bolt, so that the heavy rotating shaft 5 is removed. It can be easily lifted and moved from the processing tank body 2 to the outside.

Although the present embodiment has been described in detail, the specific configuration is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention, the present embodiment is not limited to this embodiment. Included in the invention. For example, in the above embodiment,
Although the case where the upper half 5a of the rotating shaft 5 is formed in a square cross section has been described, various forms such as a triangle, a quadrangle, and a circle may be used, and the upper half 5a may be a solid body. Further, the rotating shaft 5 itself can be formed by one shaft body. Further, the number of the stirring blades 6 is not limited to the embodiment, and may be appropriately provided. Further, the case where the inclination angle of the stirring blades 6a to 6e is 40 degrees has been described. However, the present invention is not limited to this. The inclination angle may be in the range of 30 degrees to 50 degrees.

[0024]

As described above, according to the first aspect of the present invention, there is provided a processing tank body having a garbage input port on the ceiling and a discharge port for taking out garbage after being processed on a side surface. A rotating shaft that is rotated by the driving means and extends in the upper half substantially vertically upward through the bottom of the processing tank body, and garbage in the processing tank body extending in a direction substantially perpendicular to the rotating shaft. In a garbage processing apparatus provided with stirring blades for mixing and stirring, a first bearing support portion provided with a lower half of the rotating shaft below the bottom of the processing tank main body at the bottom of the processing tank main body, and the first bearing The second provided further below the support portion
While being supported in a cantilevered state by the bearing support, the rotating shaft existing between the first bearing support and the second bearing support is driven by the driving means. As described above, since the rotating shaft of the stirring blade is cantilevered with respect to the bottom of the processing tank main body, a free space is formed in the upper part of the processing tank main body, and thereby the deodorizer and other auxiliary devices are not restricted at all. It can be installed, and the garbage is fermented and treated with bio-bacteria. Therefore, a heater can be eliminated, and therefore, deterioration of sealing means such as an oil seal and a packing due to heat can be prevented. The service life of the bearing support can be extended, the convection between the garbage and the bio-bacterium is excellent, and the stirring effect can be obtained in a short time. Various effects can be achieved such that the discharge operation of odor can be facilitated and odor leakage to the outside can be avoided.

Further, the invention according to claim 2 is configured such that the mounting angle of the stirring blade with respect to the rotation axis is set in the range of 30 to 50 degrees with respect to the rotation surface of the stirring blade. For this reason, there is an effect that the mixing and stirring efficiency of the garbage can be smoothly improved.

According to the third aspect of the present invention, since the lifting means for lifting from the processing tank body is detachably provided on the rotating shaft, the lifting means is easily lifted by a hoisting device such as a simple crane or a winch. It can be easily carried out of the processing tank, thereby improving the efficiency of operations such as repair, inspection, and replacement of the stirring blade.

According to the fourth aspect of the present invention, since the processing tank body is provided with a moving caster and a height adjusting adjuster, the garbage processing apparatus can be easily moved, and labor for the moving operation can be saved. This has an advantageous effect on the formation.

According to a fifth aspect of the present invention, the rotating shaft is
The stirring blade is formed to have a rectangular cross section, and the stirring blade is exchangeably fastened to the rotating shaft with a bolt. For this reason, the stirring blade can be attached to the flat surface of the rotating shaft by tightening bolts, which makes it easier to install the stirring blade, and also removes the stirring blade by simply loosening the bolt at the time of replacement. This makes it possible to improve the efficiency of replacement and repair work.

According to a sixth aspect of the present invention, at least two or more stirring blades are provided at a position close to the bottom of the processing tank main body, and the discharge port is flush with the bottom. The configuration was provided. The garbage is smoothly scraped out in the direction of the discharge port formed on the same surface as the bottom, and the plurality of stirring blades are provided facing the bottom, so that the writing efficiency is improved accordingly.

[Brief description of the drawings]

FIG. 1 is a front view showing an overall configuration of a garbage disposal apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an enlarged view of a main part in a part III of FIG. 1;

FIG. 4 is an enlarged view of a main part in an IV section of FIG. 1;

FIG. 5 is an enlarged view of a main part at an upper end of a rotating shaft.

FIG. 6 is an enlarged view of a main part of a foot portion of the processing tank of FIG.

FIG. 7 is an overall configuration diagram of a garbage processing apparatus in a conventional apparatus.

[Explanation of symbols]

1. Garbage disposal device 2. Processing tank body (stirring tank), 2a
... Inlet, 2b ... Inlet, 2c ... Outlet, 2d ... Outlet, 2f ... Bottom, 3 ... Insulation panel, 5 ... Rotary axis, 5a ...
Upper half, 5b Lower half, 5c Flange, 5e Female thread,
6, 6a-6e: stirring blade, 7: bolt, 8: first bearing support, 8e: packing, 8f: seal, 10: second
Bearing support, 13 ... motor, 17 ... caster, 18 ...
Adjuster

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) B01F 15/00 B09B 3/00 ZABD (72) Inventor Yasuyuki Shimizu 580-16 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa Prefecture Mitsubishi Motors Engineering Co., Ltd. (72) Inventor Ryosuke Nagoshi 580-16 Horikawa-cho, Saiwai-ku, Kawasaki City, Kanagawa Prefecture F-term (reference) 4M004 AA03 AC04 CA15 CA18 CA48 CB04 CB27 CC08 DA03 DA20 4G037 DA21 DA25 EA04 4G078 AA06 AB20 BA05 BA09 CA01 CA05 CA13 CA17 DA01 DB08 DB10 EA10 EA20

Claims (6)

[Claims] 1. A processing tank main body having a garbage input port on a ceiling portion and a discharge port for taking out garbage after processing on a side surface, and an upper half thereof rotated by a driving means and having an upper half portion thereof. A garbage disposal apparatus including a rotating shaft that extends substantially vertically upward through the bottom of the main body, and a stirring blade that extends in a direction substantially perpendicular to the rotating shaft and mixes and stirs the garbage in the processing tank main body. A first bearing support provided below a lower half of the rotating shaft below the bottom of the processing tank body at the bottom of the processing tank main body, and a second bearing support provided further below the first bearing support. While supporting in a cantilevered state,
A garbage disposal apparatus, wherein the rotating shaft existing between the first bearing support and the second bearing support is driven by the driving means. 2. The garbage according to claim 1, wherein an attachment angle of the stirring blade with respect to the rotation shaft is set in a range of 30 to 50 degrees with respect to a rotation surface of the stirring blade. Processing equipment. 3. The garbage disposal apparatus according to claim 1, wherein a lifting means for lifting the rotation shaft from the processing tank main body is detachably attached to the rotation shaft. 4. A caster for moving the processing tank body,
The garbage disposal apparatus according to any one of claims 1 to 3, further comprising an adjuster for height adjustment. 5. The rotary shaft according to claim 1, wherein the rotary shaft is formed in a square cross section, and the stirring blade is exchangeably fastened to the rotary shaft with a bolt. The garbage disposal device as described. 6. The method according to claim 1, wherein at least two or more stirring blades are provided near the bottom of the processing tank body, and the discharge port is provided so as to be flush with the bottom. A garbage disposal apparatus according to any one of claims 1 to 5.