KR20160067477A - Massive food garbage treating system of Multi-step process - Google Patents

Abstract

The present invention relates to a massive food waste treatment system based on a multi-stage process, and more specifically, to a system which collects and treats food waste which is discharged from homes or shops included in a complex, such as an apartment complex, or a shopping center. The massive food waste treatment system based on a multi-stage process comprises a first storage tank, a first transfer belt, a multi-stage crushing device, a second storage tank, a multi-stage dehydration device, a neutralization device, a third storage tank, a second transfer belt, a drying device, an extrusion device, and a unit packing device. In particular, the present invention can commercialize solids of treated food waste as products, such as fertilizer or fuel, and thus profits can be created and the profits can be invested in maintenance and management of facilities, thereby minimizing management costs and cost burden of residents in a complex. Furthermore, the present invention can purify water separated from food waste and use the water as heating water or washing water, thereby minimizing the amount of water consumed in the complex. In particular, the present invention can considerably help to overcome a water shortage phenomenon at a national level, enables efficient use and management of water resources, and can prevent environmental contamination attributable to wastewater discharged from food waste. Accordingly, reliability and competitiveness can be improved not only in a food waste treatment field but also in a water resource field, an energy field, a renewable energy field, an environmental contamination prevention field, and similar and related fields.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a multi-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a multi-stage food waste disposal system, and more particularly, to a system for collecting and treating food waste discharged from a house, such as a house or a shop,

Particularly, in the present invention, the food waste collected is pulverized, dewatered, neutralized, dried and extruded, and the moisture contained in the food waste is used for purposes other than drinking water (for example, The solid of extruded food wastes is a multi-stage food waste disposal system which can be used for fertilizer or fuel unit packing.

Food wastes generated from homes and restaurants contain more than 30% of moisture and organic materials that are easily decayed. Therefore, if food wastes are buried as they are, odor caused by nitrogen and sulfur compounds may occur, various insects may be generated, Damage to the drinking water source may be caused by the leachate generated from the buried food waste.

Due to these problems, food waste from households or restaurants has been stored in the household (each home or restaurant) and collected by the company (or institution) handling the food waste on a designated date collectively.

In this case, however, odor and leachate were generated due to the delay of the treatment time, since the house had to be kept in the house for 2 ~ 3 days in order to discard the food waste.

Especially, in a residential complex such as an apartment or a shopping mall, a very large amount of food waste is abandoned, so there is a limit to collecting and transporting it using a vehicle.

In recent years, in order to solve such a problem, there has been proposed a system for collecting and treating food waste in a complex such as Korean Patent Registration No. 10-0371811 "System for treating food waste in a unit residential area" Food waste is collectively processed.

However, even if a facility for treating food waste is provided in the complex, there is a burden to maintain the facility, and such a cost burden may be a burden to each resident.

In addition, the problem that the sewage generated in the process of food waste is discharged is the same, and even if dehydrated and dried food waste is transported to a separate factory and incinerated or recycled as fertilizer, transportation cost, But it was not an effective method because it needed a recycling facility.

Korean Patent Registration No. 10-0371811 "Food Waste Treatment System in Unit Residential Area"

In order to solve the above-mentioned problems, the present invention aims at minimizing the cost burden in collecting and processing food waste discharged from a house or a residence in a complex such as an apartment or a shopping mall, The present invention has an object to provide a large-capacity food garbage disposal system of a multi-stage treatment method capable of greatly improving the efficiency of the food waste treatment.

For this purpose, according to the present invention, the collected food waste is pulverized, dehydrated, neutralized, dried and extruded, and the moisture contained in the food waste is used for purposes other than drinking water (for example, cleaning or cleaning) (Solid) of extruded food waste is intended to provide a multi-stage treatment type large-volume food garbage disposal system that can be used for fertilizer or fuel immediately after unit packing.

Thus, the present invention can be applied to the solid waste of extruded food waste, which is used for the operation and maintenance of the facility, the purified water from the food waste is used as heating water or washing water, The present invention is directed to a multi-stage food waste disposal system capable of minimizing the management cost and the cost burden of residents.

In order to achieve the above object, a multi-stage food waste treatment system according to the present invention includes: a first storage tank for collecting food waste discharged from a plurality of households; A first conveyance belt for conveying at least a part of the food waste collected in the first storage tank; A multi-stage pulverizing device for feeding and crushing the food waste conveyed by the first conveyance belt; A second storage tank for temporarily storing the food waste pulverized by the multi-stage pulverizing apparatus; A multistage dewatering device for supplying and dewatering at least a part of the food wastes stored in the second storage tank; A neutralization treatment device for sterilizing the polluted water separated in the multi-stage dehydration apparatus; A third storage tank for storing the sterilized water in the neutralization apparatus; A second conveyance belt for conveying the dehydrated food waste in the multi-stage dehydration apparatus; A drying device for drying the food waste conveyed by the second conveyance belt; An extrusion molding device for feeding and pressure-molding the food waste conveyed and dried by the second conveyance belt; And a unit packing apparatus for individually packing the solid matter of the food waste press-molded in the press forming apparatus.

The multi-stage pulverizing apparatus may further include: a first crushing module for crushing the food waste to be crushed to a first crushing size while rotating the pair of first crushing rollers facing each other; A second shredding module that rotates a pair of second shredding rollers facing each other and crushes the shredded food waste in the first shredding module to a second shredding size; A third shredding module that rotates a pair of third shredding rollers facing each other and crushes the food waste shredded in the second shredding module to a third shredding size; And a power transmission shaft for transmitting power to the first to third crushing modules to the third crushing module, wherein the first to third crushing modules are connected to the power transmission shaft to rotate at a first crushing rotational speed to a second crushing rotational speed, 3 < / RTI >

In addition, the power transmission shaft is provided with a power transmission gear corresponding to the positions of the first to third crushing rollers, and the rotation shafts of the first to third crushing rollers are engaged with the power transmission gear And a first rotating gear to a third rotating gear rotated at a first crushing rotational speed to a third crushing rotational speed, respectively, wherein the power transmitting gear includes at least one of a worm and a screw gear At least one of the first to third turning gears may include at least one of a worm gear, a helical gear, and a bevel gear.

The multi-stage dehydration apparatus may further include a first dehydration module for separating moisture contained in the food waste and food waste smaller than the first separation size; A second dewatering module for separating food wastes smaller than a second separation size among moisture separated from the first dewatering module and food wastes smaller than the first separation size; A third dewatering module for separating moisture from food wastes smaller than a second separation size separated from the second dewatering module; A housing for collecting moisture separated from the third dewatering module and supplying the dewatered food waste to the neutralization treatment device and supplying dehydrated food waste to the second conveyance belt from the first dewatering module to the third dewatering module; And a differential gate for rotating the first dewatering module to the third dewatering module at a first dewatering rotational speed to a third dewatering rotational speed, respectively.

In addition, the differential grooved portion may include a first rotating roller to a third rotating roller that sequentially rotate the first dewatering module to the third dewatering module, respectively, and the first rotating roller to the third rotating shaft The diameter of the roller may be formed corresponding to the angular velocity of each of the first dewatering module to the third dewatering module and the respective angular velocities to be rotated at the first dewatering rotation speed to the third dewatering rotation speed, respectively.

The first rotating roller to the third rotating roller are formed of a tapered roller having a trapezoidal cross-sectional shape, and the first to third rotating rollers Respectively.

The extrusion molding apparatus may further include: an extrusion module for pressing the food waste; And a molding module for cutting the solid matter of the food waste pressurized by the extrusion module to a predetermined length, wherein the extrusion module comprises: an extrusion pivoting shaft rotated in one direction; A conveying screw formed on an outer circumferential surface of the extrusion pivot; And a pressing plate extending from the end of the conveying screw.

According to the above-mentioned solution, the present invention has an advantage that food waste discharged from a house or a residence of a residence such as an apartment or a shopping mall can be collected and processed efficiently.

In addition, the present invention not only generates profit by converting the solid matter of the treated food waste into fertilizer or fuel, but also reinvests in the maintenance of the facility thereby minimizing the management cost in the complex and the cost burden of the residents It is effective.

Particularly, the present invention can efficiently separate the moisture contained in the food waste by crushing and dehydrating the food waste by size, and by drying the dehydrated food waste with the minimum thermal energy, Energy consumption can be minimized.

Further, according to the present invention, water separated from food waste is purified and used as heating water, washing water, and the like, thereby minimizing water consumption in the complex.

As a result, the present invention can greatly improve the availability and recyclability of resources while minimizing the cost burden required for the treatment of food wastes.

Particularly, the present invention not only greatly contributes to the water shortage phenomenon at the national level, but also enables efficient use and management of water resources and can prevent environmental pollution caused by sewage discharged from food waste It is effective.

Accordingly, reliability and competitiveness can be improved in similar or related fields such as the food waste treatment field, the water resource field, the energy field, the renewable energy field, and the environmental pollution prevention field.

FIG. 1 is a configuration diagram for explaining an embodiment of a large-volume food waste disposal system of a multi-stage treatment system according to the present invention.
Fig. 2 is a configuration diagram for explaining an embodiment of the multi-stage pulverizing apparatus of Fig. 1. Fig.
Fig. 3 is a structural diagram for explaining a specific embodiment of the multi-stage pulverizing apparatus of Fig. 2;
4 is a perspective view for explaining a coupling relationship between the crushing roller and the power transmitting shaft of Fig. 3;
5 is an exploded perspective view for explaining an embodiment of the multi-stage dewatering apparatus of FIG.
6 is a partially enlarged cross-sectional view of the multistage dewatering device of FIG.
7 is a view for explaining an embodiment of the extrusion module of FIG.

An example of a multi-stage treatment type mass food garbage disposal system according to the present invention can be variously applied, and the most preferred embodiments will be described below with reference to the accompanying drawings.

FIG. 1 is a configuration diagram for explaining an embodiment of a large-volume food waste disposal system of a multi-stage treatment system according to the present invention. Here, although the multi-stage treatment type large scale food garbage disposal system shown in FIG. 1 is shown as being installed on the ground, it is needless to say that the system can be installed in the underground of the building.

1, the multi-stage food waste processing system A includes a first storage tank 110, a first conveyance belt 210, a multi-stage pulverizing apparatus 300, a second storage tank 120, The multistage dewatering device 400, the neutralization treatment device 500, the third storage tank 130, the second conveyance belt 220, the drying device 600, the extrusion molding device 700, .

The first storage tank 110 collects food wastes discharged from a plurality of houses, collects food wastes discharged from each house collectively through a separate piping arranged inside the building, They can be collected individually.

In addition, an opening / closing device 111 configured with an odor backflow blocking membrane may be constructed in one side (upper side in FIG. 1) of the first storage tank 110 in order to prevent odors from being discharged to the outside while collecting food waste .

The first conveyor belt 210 conveys at least a part of the food waste collected in the first storage tank 110 to the multi-stage pulverizer 300 and is conveyed by a belt conveyor or a chain conveyor. . ≪ / RTI >

The multi-stage pulverizing apparatus 300 is configured to feed the food waste conveyed by the first conveyance belt 210 and crush it (hereinafter, it is mixed with crushing) to adjust the crushing size of the food waste, The multi-stage dehydrator 400, which will be described later, as well as the efficient dismantling of the food garbage, efficiently separates the moisture contained in the food garbage.

In addition, since the moisture contained in the food waste can be minimized, the dehydrated food waste can be dried only by the heat of the ground or solar light in the subsequent drying of the food waste, so that the cost incurred for drying the food waste can be minimized .

The second storage tank 120 is for temporarily storing the food waste pulverized by the multi-stage pulverizing apparatus. When the pulverized food waste is stored in a predetermined amount, it can be supplied to the multi-stage dehydrating apparatus 400.

In addition, a storage amount detecting sensor 121 for detecting the storage amount of the food waste is formed at one side of the second storage tank 120, and a discharge A door (not shown) is formed. The configuration and the method of controlling the opening / closing of the discharge door by the detection signal of the stored amount detection sensor 121 can be variously changed according to the needs of those skilled in the art.

The multi-stage dehydrator 400 can supply and dehydrate at least a portion of the food waste stored in the second storage tank 120. By dewatering the food waste according to the crushed size, the moisture contained in the food waste can be more efficiently You can dehydrate.

The multi-stage pulverizing apparatus 300 and the multi-stage dehydrating apparatus 400 described above will be described in more detail below.

The neutralization treatment apparatus 500 is for neutralizing (purifying) the polluted water separated from the multi-stage dehydration apparatus 400. The neutralization treatment apparatus 500 includes a chlorine tank for storing chlorine (Cl) for neutralizing contaminated water, And the like.

The third storage tank 130 stores purified water disinfected and sterilized in the neutralization treatment apparatus 500. The stored water may be supplied to the outside through the supply pipe 131 and used as heating water, washing water or the like.

The second conveyance belt 220 transfers the food waste dewatered in the multi-stage dewatering device 400 to the extrusion molding device 700. The conveyance belt can be constructed as a conveyor belt or a conveyor chain in the same manner as the first conveyance belt 210 have.

In addition, the second conveyance belt 220 may be configured inside the drying apparatus 600 to finally dry the food waste from which moisture has been removed.

The drying device 600 is for drying the food waste conveyed by the second conveyance belt 220, and can dry the food waste using geothermal heat or sunlight. Here, the method and structure for supplying the geothermal heat or the sunlight into the drying apparatus 600 may be variously modified according to the needs of those skilled in the art, and the present invention is not limited to the specific method.

The drying apparatus 600 may include an exhaust duct 610 through which the moisture contained in the food waste is evaporated and discharged to the outside through the exhaust port 611. Drying of the food waste is performed in the exhaust duct 610, An odor-blocking filter 612 for preventing the odor generated in the process from being discharged to the outside can be configured.

Meanwhile, when the temperature of the air containing the evaporated moisture is discharged through the exhaust duct 610, the vaporized moisture is again liquefied and collected in the exhaust duct 610. The collected water has the same or similar cleanliness as the water purified by the neutralization apparatus 500.

Accordingly, in the present invention, the recovery duct 620 can be formed at one side of the exhaust duct 610, and the liquefied moisture can be collected and supplied to the third storage tank 130.

At this time, a check valve 621 may be formed in the recovery duct 620 to prevent water stored in the third storage tank 130 from vaporizing and flowing out to the outside.

The extrusion molding apparatus 700 includes a extrusion module 710 for feeding the food waste conveyed and dried by the second conveyance belt 220 and pressurizing the dried food waste to pressurize the transferred food waste and a solid material of the extruded food waste And a forming module 720 for cutting.

Further, a unit packaging device 800 for individually packaging the cut solids may be formed at one side of the extrusion molding apparatus 700.

Fig. 2 is a configuration diagram for explaining an embodiment of the multi-stage pulverizing apparatus of Fig. 1. Fig.

2, the multistage grinding apparatus 300 includes a first grinding module 310 for crushing the food waste FW1 to a first crushing size (for example, 10 mm), a first crushing module 310 for breaking the food waste FW1 to a first crushing size The second crushing module 320 for crushing the food waste FW2 to a second crushing size (for example, 5 mm) and the food waste FW3 crushing the second crushing module 320 to a third crushing size (for example, (E.g., 2 mm). ≪ / RTI > Here, the unexplained reference character 'FW4' is the food waste finally crushed.

At this time, the first to third crushing modules 310 to 330 are rotated while facing the pair of the first crushing roller 311 to the third crushing roller 331, respectively, (For example, from 20 RPM) to a third crushing rotational speed (for example, 60 RPM), the food waste can be crushed.

Also, the pair of the first to third crushing rollers 311 to 331 are connected and rotated by one power transmission shaft, and the crushing size and crushing speed of the food waste can be adjusted without a separate control device .

FIG. 3 is a structural view for explaining a specific embodiment of the multi-stage pulverizing apparatus of FIG. 2, and FIG. 4 is a perspective view for explaining a coupling relationship between the pulverizing roller and the power transmission shaft of FIG.

The first crushing roller 311 of the first crushing module 310 may be gear-engaged with the power transmitting shaft 340 and rotated. For example, the first turning gear 312 formed on the first turning shaft 313 of the first breaking roller 311 is engaged with the power transmitting gear 341 formed on the power transmitting shaft 340, The roller 311 can be rotated.

The second shredding module 320 and the third shredding module 330 may be constructed in the same manner as or similar to the first shredding module 310 and may include a first rotating gear 312 to a third rotating gear 332 can be changed.

First to third crushing protrusions 311a to 313a for crushing food waste are formed on the outer circumferential surfaces of the first to third crushing rollers 311 to 331, The crushing protrusions formed on the rollers may be configured to be offset from each other.

In order to operate the first shredding module 310 and the third shredding module 330 using one power transmission shaft 340, the direction of the rotation shaft of the power transmission shaft 340 and the direction of rotation of the respective shredding rollers 340 It is necessary that the coaxial directions are orthogonal to each other.

Accordingly, the power transmission shaft 340 and the turning gear may be formed of a combination of a worm and a worm gear, or a combination of a screw gear and a bevel gear.

A worm or a screw may be formed on the entire power transmission shaft 340. However, as shown in FIG. 3, the positions of the first to third breaking rollers 311 to 313 As shown in FIG.

4, the outer surface of the gear tooth 312a may be formed as a curved surface 312b, and may be formed in a helical gear shape, as shown in FIG. 4, for smooth engagement with the worm 341. Further, As shown in FIG.

FIG. 5 is an exploded perspective view illustrating an embodiment of the multistage dewatering apparatus of FIG. 1, and FIG. 6 is a partially enlarged cross-sectional view of the multistage dewatering apparatus of FIG.

5, the multi-stage dewatering device 400 includes a first dewatering module 410, a second dewatering module 420, a third dewatering module 430, a housing 440, ).

A first dewatering hole 411 having a size corresponding to the first separation size may be formed in the first dewatering module 410 and a second dewatering hole 411 having a size corresponding to the second separation size may be formed in the second dewatering module 420. [ A second dewatering hole 421 may be formed in the third dewatering module 430 and a third dewatering hole 431 may be formed in the third dewatering module 430 in a size corresponding to the third separation size.

When the food waste that is crushed in the multi-stage crusher 300 is supplied to the inside of the first dewatering module 410, the first dewatering module 410 rotates while the moisture contained in the food waste and the food waste May be separated and moved to the second dewatering module 420.

As the second dewatering module 410 is rotated, food wastes separated from the first dewatering module 410 and food wastes smaller than the second separation size are separated from the first dewatering module 410, (420). ≪ / RTI >

In addition, as the third dehydration module 430 is rotated, water can be separated from the food waste smaller than the second separation size separated by the second dehydration module 420 and moved to the housing 440.

Therefore, by separating the water three times according to the size of the food waste, it is possible to minimize the amount of residual water remaining in the separated food waste.

In addition, the housing 440 can supply the separated moisture and food waste to the neutralization apparatus 500 and the second conveyance belt 220, respectively. The moisture separated by the housing 440 moves downward along the edge and the food waste remaining in the first dewatering module 410 to the third dewatering module 430 moves downward through the center portion, (Not shown), it is possible to separately supply moisture and food scum. The structure of such a partition wall may be variously modified according to the structure of the dewatering apparatus 400 and the needs of those skilled in the art, and therefore, the present invention is not limited thereto.

On the other hand, the first dewatering module 410 to the third dewatering module 430 can rotate at different speeds for smooth water discharge. For example, the first dewatering module 410 to the third dewatering module 430 may be rotated at a first dewatering rotation speed to a third dewatering rotation speed, respectively, and the second dewatering rotation speed may be a first dewatering rotation speed The third dewatering rotational speed can be rotated at a speed of 1.5 times, and the third dewatering rotational speed can be respectively rotated at a double speed of the first dewatering rotational speed.

In order to rotate the first dewatering module 410 to the third dewatering module 430 at different speeds, the first rotating roller 451 to the third rotating roller 453 having different diameters .

The first rotating roller 451 to the third rotating roller 453 may be sequentially arranged corresponding to the first dewatering module 410 to the third dewatering module 430 along the differential pivot shaft 454. [

Since the positions of the first rotating roller 451 to the third rotating roller 453 are located at the edges of the respective dewatering modules as shown in FIG. 6, the positions of the first rotating roller 451 to the third rotating roller 453 May be formed corresponding to the angular velocities of the respective first to third dewatering modules 410 to 430 and the respective angular velocities to be rotated at the first to third dewatering rotational speeds to the third dewatering rotational speed, respectively have.

The first rotating roller 451 to the third rotating roller 453 may be formed of a tapered roller having a trapezoidal cross-sectional shape. In the lower portion of the first to third dewatering modules 410 to 430, The first to fourth inclined surfaces 411 to 431 to which the first rotating roller 451 to the third rotating roller 453 are closely contacted may be respectively formed.

The first rotating roller 451 includes a first roller body 451a coupled to the differential pivot shaft 454 and a first friction portion 451b formed on the sloped surface of the first roller body 451a, And a first blocking plate 451c formed on the rear surface of the first roller body 451a.

Accordingly, when the first roller body 451a is rotated as the differential pivot 454 is rotated, the frictional force of the first frictional portion 451b formed on the inclined surface of the first roller body 451a causes the first dewatering module 410 may be rotated.

The first blocking plate 451c is provided to prevent the first rotating roller 451 from being contaminated by the food waste collected in the second dehydrating module 420. [

The configuration of the first rotating roller 451 may be similarly applied to the second rotating roller 452 and the third rotating roller 453. [

Further, a support roller 470 may be formed on the upper portion of the first dewatering module 410 to the third dewatering module 430 so that the respective dewatering modules can stably rotate. Here, one side of the support roller 470 is fixed to each dewatering module, and the other side of the support roller 470 can be contacted to another dewatering module by a bearing (roller type).

Of course, when the upper portions of the first dewatering module 410 to the third dewatering module 430 are sealed, a support roller may be formed on each dewatering module.

5, an idle bearing 460 is formed under each dewatering module so that the first dewatering module 410 to the third dewatering module 430 can be stably rotated . Here, the idle bearing 460 may be formed in the same or similar shape as the differential pivoting hole 450, except that a bearing is formed at the edge of the pivoting roller.

The differential claw 450 and the idle bearing 460 can be coupled to and rotated by a coupling hole 441 formed in the lower portion of the housing 440. The differential claw 450 and the idle bearing 460 are connected to the coupling hole 441, The bearing 441a can be configured so that the bearing 460 can rotate smoothly.

Fig. 7 is a view for explaining an embodiment of the extrusion module of Fig. 1, wherein Fig. 7 (a) is a perspective view of the internal configuration of the extrusion module, and Fig. 7 (9b) is a side view of the internal configuration of the extrusion module.

Referring to Fig. 7, the extrusion module 71 shown in Fig. 1 includes an extrusion pivoting shaft 711 which is rotated in one direction, a feed screw 712 formed on the outer peripheral surface of the extrusion pivoting shaft 7110, And a pressurizing plate 713 extending from the end of the guide plate 712.

Therefore, when the dried food waste is supplied to the extrusion molding apparatus 700, the supplied food waste moves downward along the conveying screw 712, and the food waste moved to the lowermost portion is compressed by the pressing plate 713 .

The food waste squeezed by the pressurizing plate 713 can be supplied to the forming module 720 through a cylindrical hole (for example, a diameter of 5 mm), and the forming module 720 can feed the food waste Can be cut to a predetermined length, and the cut solid matter can be packed in the unit packaging apparatus 800. [

In the above, the multi-stage treatment type mass food garbage disposal system according to the present invention has been described. It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Therefore, it is to be understood that the embodiments described above are intended to be illustrative, and not restrictive, in all respects, and that the scope of the invention is indicated by the appended claims rather than the foregoing description, And all equivalents and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

A: Large-volume garbage disposal system
110: first storage tank 120: second storage tank
130: third storage tank 131: supply pipe
210: first conveyance belt 220: second conveyance belt
300: Multistage crushing device
400: Multistage dehydrator
500: Neutralizer
600: Drying device
700: extrusion molding device
800: Unit packing device

Claims (7)

A first storage tank for collecting food waste discharged from a plurality of houses;
A first conveyance belt for conveying at least a part of the food waste collected in the first storage tank;
A multi-stage pulverizing device for feeding and crushing the food waste conveyed by the first conveyance belt;
A second storage tank for temporarily storing the food waste pulverized by the multi-stage pulverizing apparatus;
A multistage dewatering device for supplying and dewatering at least a part of the food wastes stored in the second storage tank;
A neutralization treatment device for sterilizing the polluted water separated in the multi-stage dehydration apparatus;
A third storage tank for storing the sterilized water in the neutralization apparatus;
A second conveyance belt for conveying the dehydrated food waste in the multi-stage dehydration apparatus;
A drying device for drying the food waste conveyed by the second conveyance belt;
An extrusion molding device for feeding and pressure-molding the food waste conveyed and dried by the second conveyance belt; And
And a unit packing device for individually packing the solid matter of the food garbage which has been pressure-molded in the compression molding device, wherein the multi-stage treatment type mass food garbage disposal system
The method according to claim 1,
In the multi-stage pulverizing apparatus,
A first shredding module that rotates a pair of first shredding rollers facing each other and crushes the supplied food waste to a first shredding size;
A second shredding module that rotates a pair of second shredding rollers facing each other and crushes the shredded food waste in the first shredding module to a second shredding size;
A third shredding module that rotates a pair of third shredding rollers facing each other and crushes the food waste shredded in the second shredding module to a third shredding size; And
And one power transmission shaft for transmitting power to the first to third shredding modules,
Wherein the first to third shredding modules are connected to the power transmission shaft and rotated at a first crushing rotational speed to a third crushing rotational speed, respectively.
3. The method of claim 2,
Wherein the power transmission shaft includes:
A power transmission gear is formed corresponding to the positions of the first to third crushing rollers,
Wherein the first to third crushing rollers to the third crushing roller include first to third rotating gears to be rotated at a first crushing rotational speed to a third crushing rotational speed, respectively,
Wherein the power transmission gear includes at least one of a worm and a screw gear,
Wherein at least one of the first rotating gear to the third rotating gear includes at least one of a worm gear, a helical gear, and a bevel gear. Processing system.
The method according to claim 1,
In the multi-stage dehydration apparatus,
A first dehydration module for separating moisture contained in the food waste and food waste smaller than the first separation size;
A second dewatering module for separating food wastes smaller than a second separation size among moisture separated from the first dewatering module and food wastes smaller than the first separation size;
A third dewatering module for separating moisture from food wastes smaller than a second separation size separated from the second dewatering module;
A housing for collecting moisture separated from the third dewatering module and supplying the dewatered food waste to the neutralization treatment device and supplying dehydrated food waste to the second conveyance belt from the first dewatering module to the third dewatering module; And
And a differential gate for rotating the first dewatering module to the third dewatering module at a first dewatering rotation speed to a third dewatering rotation speed, respectively.
5. The method of claim 4,
The differential-
The first rotating roller to the third rotating roller for rotating the first dewatering module to the third dewatering module are sequentially formed on the differential rotation axis,
The diameters of the first to third rotating rollers
Is formed corresponding to angular velocities of each of the first dewatering module (1) to the third dewatering module (1) and each angular velocity for rotating the first dewatering rotation speed to the third dewatering rotation speed Processing system.
6. The method of claim 5,
Wherein the first rotating roller to the third rotating roller are formed of a tapered roller having a trapezoidal cross-sectional shape,
The first dehydrating module to the third dehydrating module include:
And a sloped surface in which the first rotating roller to the third rotating roller closely contact each other is formed in a lower portion of the multi-stage processing type garbage disposal system.
7. The method according to any one of claims 1 to 6,
In the extrusion molding apparatus,
An extrusion module for pressing the food waste; And
And a molding module for cutting the solid matter of the food waste pressurized by the extrusion module to a predetermined length,
The extrusion module comprises:
An extrusion pivoting shaft rotated in one direction;
A conveying screw formed on an outer circumferential surface of the extrusion pivot; And
And a pressure plate extending from a longitudinal end of the conveying screw.

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