KR101228483B1 - Food-waste recycling system with increased energy efficiency by circulating liquid extracted from leachat - Google Patents

Abstract

PURPOSE: A food-waste recycling system with increased energy efficiency by circulating liquid extracted from leachate is provided to enhance the separation efficiency of water and oil by providing temperature raised liquid to the oil water separating system through the refrigerator. CONSTITUTION: A food-waste recycling system with increased energy efficiency by liquid extracted from leachate comprises the crushing pressure frame, drum selector(2), dryer(41), refrigerator(42), and oil water separating system(6). The drum selector separates food waste from crushing pressure frame into solid component and liquid component. The dryer dries the food waste without food waste liquid from the crushing pressure frame. The refrigerator freezes the food waste from the dryer using separate liquid as cooling agent from the drum selector. The oil water separating system separates liquid into oil and water which has ejected from the refrigerator after used as cooling agent. The crushing pressure frame comprises the fracture selector(11), the air circulation device(12), and the press machine(13). The air circulation device draws out the contaminated air from the operation of facture selector, and provides air back to the fracture selector after a certain duration lapse. The press machine compresses the food waste from the fracture selector and separates the food effluent. From the refrigerator, the liquid separated from the drum selector is used as the cooling agent to improve the cooling efficiency of the refrigerator. The liquid separated from the drum selector is used as the cooling agent of the refrigerator and is flowed into the oil water separating system to separate water and oil. [Reference numerals] (11) Fracture selector; (12) Air circulation device; (13) Press machine; (2) Drum selector; (3) Intermediate storage tank; (41) Dryer; (42) Refrigerator; (5) Selector; (6) Oil-water separation device

Description

Food-waste recycling system with increased energy efficiency by circulating liquid extracted from leachat}

The present invention relates to a food waste recycling apparatus, and more specifically, to separate the food waste water from the crushing compression unit and the crushing compression unit to remove the food waste water by sorting and compressing the food waste separated into a solid component and a liquid component A cooler for cooling the food waste discharged from the dryer using a drum separator and a dryer for drying the food waste water from which the food waste water is removed from the shredding compressor, and a liquid separated from the drum separator as coolant. Including the oil and water separator for separating the liquid into oil and water, the liquid separated from the drum selector can be used as the cooling water of the cooler to improve the cooling efficiency of the cooler, and the oil-water separation of the temperature rises through the cooler Separating oil and water by supplying to the device can improve the oil and water separation efficiency. Through the cycle of the separated liquid from the food waste with improved energy efficiency, which is for a food waste recycling apparatus.

When the food waste is buried, food waste water is generated, which contaminates water and soil, and gas and odor generated from food waste cause civil complaints of residents around the landfill, and food waste has a high calorific value based on dry weight and sufficient moisture. In addition, since organic substances are sufficient in nutrients, the removal of excess salt, etc., makes it possible to recycle high-quality compost or feed, and food waste recycling methods for manufacturing food waste and compost by processing food waste have been in the spotlight. The food waste recycling method largely separates the food waste water from the food waste, dried and sorted the food waste from which the food waste water is removed to produce feed, compost and the like.

However, in the food waste recycling method, since the food waste is cooled using air in the process of cooling the heated food waste, the cooling efficiency decreases, and the temperature of the liquid is low in the process of separating the oil and water from the liquid separated from the food wastewater. There is a problem that the separation efficiency of the oil and water falls.

In addition, the food waste recycling method has a problem that excessive odor occurs in the process of implementing the method, the pump is used in the process of moving the food waste shortens the life of the food waste recycling apparatus.

In addition, the food waste recycling method uses a drum separator to separate the solid and liquid components in the food waste water, the hole for discharging the liquid component of the food waste water by the continuous use of the drum sorter is blocked by the solid components. There is a problem that the filtration efficiency of the drum selector falls.

In addition, the food waste recycling method uses a dryer so that the food waste from which the food waste water is removed is dried at a predetermined water content rate, and the food waste is too fast to pass through the dryer so that some food waste is not dried or a large amount of food waste is dried. Food waste can not be dried there is a problem that the drying efficiency falls.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

The present invention can improve the cooling efficiency of the cooler by using the liquid separated in the drum selector as the cooling water of the cooler, and the oil-water separation efficiency by separating the oil and water by supplying a liquid whose temperature rises through the cooler to the oil-water separator. The purpose of the present invention is to provide an energy-efficient food waste recycling apparatus through circulation of liquid separated from food waste water which can be improved.

In addition, the present invention can reduce the odor generated by food waste by circulating the contaminated air generated in the process of crushing the food waste through the air circulation device, and transport the food waste through a screw conveyor to improve the transfer efficiency The purpose of the present invention is to provide an energy-efficient food waste recycling apparatus through circulation of liquid separated from food waste water which can be improved.

In addition, the present invention, since the high-pressure washing liquid discharged through the high pressure washing nozzle desorbs the solid component of the food wastewater inserted into the liquid discharge hole of the drum selector from the liquid discharge hole, effectively preventing the liquid discharge hole of the drum sorter from being blocked. It is an object of the present invention to provide a food waste recycling apparatus with energy efficiency through circulation of liquid separated from the food waste water.

In addition, the present invention, when the food waste of the food waste is removed, the drying of the disk of the dryer in the reverse wing is formed to move the food waste in the direction opposite to the moving direction of the food waste, the food waste passes through the dryer The purpose of the present invention is to provide an energy-efficient food waste recycling apparatus through circulation of a liquid separated from the food waste water which can dry a large amount of food waste by slowing down the speed.

In order to achieve the above object, the present invention is implemented by the following embodiments.

According to an embodiment of the present invention, the food waste resource recycling apparatus for improving energy efficiency through the circulation of the liquid separated from the food waste water according to the present invention is a shredding compression unit for removing the food waste water by crushing and sorting the food waste; ; A drum separator for separating food wastewater separated from the shredding compression unit into a solid component and a liquid component; A dryer for drying the food waste from which the food waste water is removed from the shredding compression unit; A cooler configured to cool the food waste discharged from the dryer by using the liquid separated from the drum selector as cooling water; And an oil-water separator for separating the liquid discharged after being used as the coolant from the cooler into oil and water, wherein the shredding compression unit shreds the incoming food waste and removes foreign substances. An air circulation device which is connected in communication with the polluted air generated during the operation of the shredding separator and supplies the shredder to the shredder after a certain period of time, and presses for separating food waste water by compressing the food waste discharged from the shredder. In the cooler, the liquid separated from the drum selector may be used as a coolant to improve the cooling efficiency of the cooler, and the liquid separated from the drum selector is used as the coolant of the cooler and heated, the flowing water Oil is separated from the liquid as it flows into the separator to separate oil and water. It characterized in that to improve the separation efficiency of the water.

According to another embodiment of the present invention, in the food waste recycling apparatus to increase energy efficiency through the circulation of the liquid separated from the food waste water according to the present invention, the air circulation device is connected in communication with the inside of the shredding separator and the shredding An air inlet pipe for introducing contaminated air generated from the separator, a body part connected to the end of the air inlet pipe to temporarily receive the contaminated air of the crusher, and one end connected to the body part And the other end is connected in communication with the shredding selector and comprises an air discharge pipe for supplying air received in the body part to the shredding sorter.

According to another embodiment of the present invention, in the food waste recycling apparatus for improving energy efficiency through circulation of the liquid separated from the food waste water according to the present invention, the cooler is coupled to the casing and the outside of the casing to move the cooling water. It characterized in that it comprises a drive tube for moving the food waste introduced into the casing and the outer tube forming a cooling water moving path.

According to another embodiment of the present invention, the drum sorter in the food waste recycling apparatus of the improved energy efficiency through the circulation of the liquid separated from the food waste water according to the present invention, the food waste water flows in, a plurality of liquids on the outer surface A filter drum in which an outlet hole is formed; A driving unit to rotate the filter drum and move the solid component separated inside the filter drum; Located at the outer side of the filter drum at a predetermined interval, including a high-pressure washing spray nozzle for spraying a high-pressure washing liquid toward the liquid discharge hole for a predetermined period of time, the high-pressure washing nozzle comprises a predetermined interval on the outside of the filter drum And a plurality of washing liquid inlet pipes connected to the washing liquid supplying device and supplied with the washing liquid and a plurality of penetrating through the outer surface of the washing liquid inlet pipe at predetermined intervals to spray the washing liquid inside the washing liquid inlet toward the liquid discharge hole. And a washing liquid spraying hole, wherein, as the filter drum is rotated by the driving unit, a liquid component from the food wastewater introduced into the filter drum is discharged from the filter drum through the liquid discharge hole, and inside the filter drum. Only solid components remain, and the high pressure washing nozzle has a high pressure toward the liquid discharge hole for a period of time. Spraying a cleaning solution, so it is characterized in that the solid component can be prevented from fitting to the liquid discharge hole.

According to still another embodiment of the present invention, in the food waste recycling apparatus for improving energy efficiency through circulation of a liquid separated from the food waste water according to the present invention, the dryer includes: a casing for forming an outer appearance; A plurality of disks arranged and rotated side by side at a predetermined interval inside the casing, and a disk in which hot steam circulates; A wing member formed on an outer circumferential surface of the disk to guide movement of food waste introduced into the casing; And a drive unit which rotates the disk and has a driving shaft connected to the center of the disk, wherein the wing member is formed on an outer circumferential surface of the disk to guide food waste in a flow direction of the food waste; It is formed on the outer circumferential surface of the disk includes a reverse wing for guiding the food waste in the direction of the opposite direction of the flow of food waste, the food waste is moved by the reverse wing in the opposite direction of the flow direction of the food waste, the food waste By slowing down the passage speed of the casing in the food waste can increase the period adjacent to the disk, the forward wing is installed so as to have an angle of 20 to 70 degrees with the drive shaft when the dryer is seen from the front, the reverse The wing is the sphere when the dryer is seen from the front Characterized in that the installation to have a shaft with an angle of 120 to 160 degrees.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention can improve the cooling efficiency of the cooler by using the liquid separated in the drum selector as the cooling water of the cooler, and the oil-water separation efficiency by separating the oil and water by supplying a liquid whose temperature rises through the cooler to the oil-water separator. There is an effect that can be improved.

In addition, the present invention can reduce the odor generated by food waste by circulating the contaminated air generated in the process of crushing the food waste through the air circulation device, and transport the food waste through a screw conveyor to improve the transfer efficiency There is an effect that can be improved.

In addition, the present invention, since the high-pressure washing liquid discharged through the high pressure washing nozzle desorbs the solid component of the food wastewater inserted into the liquid discharge hole of the drum separator from the liquid discharge hole, effectively preventing the liquid discharge hole of the drum separator from being blocked. There is a high effect that can be done.

In addition, the present invention is the reverse of the blade is formed on the disk of the dryer when drying the food waste water is removed food waste water can move the food waste in the direction opposite to the moving direction of the food waste, so that the speed of the food waste passing through the dryer It can slow down the drying of large amounts of food waste.

1 is a block diagram of a food waste recycling apparatus according to an embodiment of the present invention.
Figure 2 is a detailed configuration of the food waste recycling apparatus according to an embodiment of the present invention.
Figure 3 is a partially cut perspective view of a screw conveyor used in the food waste recycling apparatus according to an embodiment of the present invention.
4 is a partially cutaway perspective view of the air circulation system of FIG. 2.
5 is a perspective view of the drum selector of FIG.
6 is a partially cutaway perspective view of the drum selector of FIG.
7 is a cross-sectional view of the drum selector of FIG.
8 is a perspective view of the dryer of FIG. 2.
9 is a partially cutaway perspective view of the dryer of FIG.
10 is an enlarged perspective view of the disk of FIG.
FIG. 11 is a perspective view of the cooler of FIG. 2; FIG.
12 is a cross-sectional view of the cooler of FIG.
FIG. 13 is a perspective view of the oil / water separator of FIG. 2. FIG.
14 is a sectional view of the oil / water separator of FIG. 2.

Hereinafter will be described in detail with reference to the accompanying drawings, the food waste recycling apparatus to increase the energy efficiency through the circulation of the liquid separated from the food waste water according to the present invention. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. Unless defined otherwise, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and, if conflict with the meaning of the terms used herein, It follows the definition used in the specification.

1 is a block diagram of a food waste recycling apparatus according to an embodiment of the present invention, Figure 2 is a detailed configuration of a food waste recycling apparatus according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention Is a partially cut perspective view of a screw conveyor used in another food waste recycling apparatus, FIG. 4 is a partially cut perspective view of the air circulation device of FIG. 2, FIG. 5 is a perspective view of the drum sorter of FIG. 2, and FIG. 6 is of FIG. 2. Partly cutaway perspective view of the drum selector, FIG. 7 is a cross-sectional view of the drum selector of FIG. 2, FIG. 8 is a perspective view of the dryer of FIG. 2, FIG. 9 is a partially cutaway perspective view of the dryer of FIG. 2, and FIG. 11 is an enlarged perspective view of the disk, FIG. 11 is a perspective view of the cooler of FIG. 2, FIG. 12 is a sectional view of the cooler of FIG. 2, FIG. 13 is a perspective view of the oil / water separator of FIG. 2, and FIG. 14 is an oil / water separator of FIG. 2. It is a cross section of.

Referring to FIGS. 1 to 14, the food waste recycling apparatus having improved energy efficiency through the circulation of the liquid separated from the food wastewater according to an embodiment of the present invention, the food waste recycling apparatus is to crush the incoming food waste A crushing compression unit (1) for sorting and compressing food waste water to separate food waste water, a drum separator (2) for separating solid and liquid components from food waste water discharged from the crushing compression unit (1), and the crushing compression unit ( 1) the food waste from which the food waste water is removed and the intermediate storage tank (3) for temporarily storing the solid components separated from the drum selector (2), and the food waste discharged from the intermediate storage tank (3) to a certain degree Dry cooling unit (4) for drying and cooling to have a moisture content, sorting unit (5) for finally removing the foreign matter from the food waste discharged from the dry cooling unit (4), and the drum sorter (2) Is discharged through the drying includes the cooling section (4) leading to separation to separate the water and oil (oil) at elevated temperature liquid (6), and the like. In the food waste recycling apparatus, the food waste is transported by the screw conveyor 100 as shown in FIG. Looking at the process of the food waste is transported by the screw conveyor 100, when the food waste is introduced into the casing 110 through the inlet (110a) drive motor 120 is operated to drive the spiral shaft 130 is formed 140 is rotated so that the food waste inside the casing 110 is moved to be discharged to the outlet (110b).

The shredding compression unit 1 is configured to separate the food waste water by shredding, sorting and compressing the incoming food waste, and includes a shredding separator 11, an air circulation device 12, a press machine 13, and the like. .

The shredding selector 11 is configured to crush the incoming food waste and remove foreign matters except food, and the foreign matter is removed from the shredding sorter 11 and the shredded food waste is supplied to the press 13.

The air circulation device 12 is connected in communication with the shredding selector 11 to withdraw contaminated air generated during the operation of the shredding selector 11 and is supplied to the shredding selector 11 again after a certain period of time. In the configuration, the air inlet pipe 121, the body portion 122, the air discharge pipe 123 and the like.

The air inlet pipe 121 is connected in communication with the inside of the shredding selector 11 to introduce contaminated air generated in the shredding selector 11, the end of the air inlet pipe 121 is the body It is connected in communication with the portion 122.

The body portion 122 is connected in communication with the end of the air inlet pipe 121 to temporarily receive the contaminated air of the shredding separator (11). For example, an adsorbent for removing contaminants, that is, odor generating substances, from the air may be further installed inside the body portion 122.

The air discharge pipe 123 is one end is connected in communication with the body portion 122 and the other end is connected in communication with the shredding selector 11 to the air received in the body portion 122 to the shredding separator (11) Supply. Odor is generated in the process of crushing and sorting food waste by operating the shredder 11, by circulating the contaminated air generated in the shredder 11 through the air circulation device 12, the shredder Polluted air generated in the operation of (11) is not discharged to the surrounding environment, which can reduce the occurrence of odor by food waste.

The press machine 13 is configured to separate food wastes by compressing the food wastes from which the foreign matter is removed from the shredder 11, and shredding the food wastes. The food waste waters separated from the presses 13 may be described later. Supplied to the food waste water is removed, the food waste is supplied to the intermediate storage tank (3) to be described later.

The drum selector 2 is configured to separate the solid and liquid components from the food wastewater discharged from the press 13, that is, to filter the food wastewater, and the casing 21, the filter drum 22, and the driving unit 23. ), The high pressure washing nozzle 24, the support 25, and the like.

The casing 21 is configured to form an outer shape of the drum selector 2, and is made of a certain material with a predetermined shape, but preferably has a cylindrical shape with an empty inside and is made of a metal material. The filter drum 22 and the high pressure washing nozzle 24 are positioned inside the casing 21. The casing 21 is a wastewater inlet 211 through which food wastewater is introduced, a liquid discharge unit 212 through which liquid separated from the food wastewater is discharged, and a solid component discharger through which solid components separated from the food wastewater are discharged. And a support (25) on the bottom surface of the casing (21).

The filtering drum 22 is connected to the driving unit 23 and rotates. A plurality of liquid discharge holes 221 formed therethrough are formed on an outer surface of the filtering drum 22. The filter drum 22 has a predetermined shape, but preferably has a cylindrical shape emptied inside. The liquid discharge hole 221 has a fine diameter such that the liquid passes through but does not pass the solid component of the food wastewater. The food wastewater introduced into the filter drum 22 through the wastewater inlet 211 is rotated by the filter unit 22 by the driving unit 23 and the liquid component of the liquid discharge hole 221. It is discharged to the outside of the filter drum 22 through only the solid component remains inside the filter drum 22. The liquid discharged through the liquid discharge hole 221 is discharged to the outside of the drum selector 2 through the liquid discharge part 222, and the solid component is operated by the driving unit 23. The discharge unit 223 is discharged to the outside of the drum selector (2).

The driving unit 23 rotates the filtration drum 22 and moves a solid component located in the filtration drum 22. The driving motor 231, the driving shaft 232, and the spiral plate 233 are provided. It includes such a configuration.

The driving motor 231 is connected to one end of the driving shaft 232 to provide power for rotating the driving shaft 232, and a motor generally used may be used.

The drive shaft 232 is configured to be coupled to the filter drum 22 and the spiral plate 233, the filter drum 22 is rotated as the drive shaft 232 rotates and the spiral plate 233 is spiral You exercise.

The spiral plate 233 is a plate formed in the shape of a spiral on the outer surface of the drive shaft 232 located inside the filter drum 22, the spirally moving as the drive shaft 232 rotates the filter drum 22 The solid component existing in the inside of the) is moved in the solid component discharge part 223 direction.

The high pressure washing nozzle 24 is configured to spray a high pressure washing liquid toward the liquid discharge hole 221 of the filter drum 22 by being located inside the casing 21 outside the filter drum 22. Washing liquid inlet pipe 241, washing liquid spraying hole 242 and the like. For example, the washing liquid may be used general water.

The washing liquid inlet pipe 241 is installed inside the casing 21 outside the filter drum 22 and is connected to a washing liquid supply device (not shown) at one end to receive the washing liquid.

The washing liquid spraying hole 242 has a plurality of penetrating formed at a predetermined interval on the outer surface of the washing liquid inlet pipe 241 to discharge the washing liquid inside the washing liquid inlet pipe 241, the washing liquid spraying hole 242 The high pressure washing liquid discharged through the liquid is discharged toward the liquid discharge hole 221.

If the drum separator (2) continues to be used, the liquid discharge hole (221) is blocked by a solid component to reduce the food wastewater filtration efficiency of the drum separator (2), as shown in Figure 7 the high pressure washing nozzle When the high pressure washing liquid is sprayed through the 24, the solid component of the food wastewater inserted into the liquid discharge hole 221 of the drum selector 2 is detached from the discharge hole 221, that is, the liquid discharge hole 221. The solid component inserted into the filter may be moved into the filter drum 22 to prevent the liquid discharge hole 221 of the drum selector 2 from being blocked, thereby improving the filtration efficiency of the drum selector 2.

The intermediate storage tank 3 is configured to temporarily store the food waste from which the food waste water discharged from the press machine 13 is removed and the solid components discharged from the drum selector 2. It may be formed in a shape, and may be made of various materials such as SUS304 or SPV300. Food waste and solid components stored in the intermediate storage tank (3) is supplied to a dryer 41 to be described later.

The dry cooling unit 4 is configured to cool after drying the food waste supplied from the intermediate storage tank 3 to have a predetermined water content, and includes a dryer 41, a cooler 42, and the like.

The dryer 41 is configured to dry food waste supplied from the intermediate storage tank 3, and includes a casing 411, a disk 412, a wing member 413, a driver 414, and the like. .

The casing 411 is configured to form an outer shape of the dryer 41, and is made of a predetermined material with a predetermined shape, but preferably has a cylindrical shape with an empty inside and is made of a metal material. The disk 412 and the wing member 413 are positioned inside the casing 411. The casing 411 includes a food inlet 411a through which food waste is introduced, and a food outlet 411b through which dried food waste is discharged.

The disk 412 is arranged in a plurality of side by side at a predetermined interval inside the casing 411, the central portion is connected to the drive shaft 414b to be described later is configured to rotate as the drive shaft 414b rotates, The high temperature steam supplied by the steam supply unit (not shown) is circulated inside the disk 412. Food waste introduced into the casing 411 is dried in contact with or adjacent to the disk 412 by evaporation of moisture. The disk 412 has ring-shaped circular tubes 412a having different radii a1, a2, and a3, respectively, arranged outwardly at regular intervals, and the vertical tubes 412b communicate with the circular tubes 412a. In this way, one disk 412 is formed. The disks 412 are connected in communication by a horizontal tube 413c, so that the hot steam supplied to the steam supply unit circulates through the circular tube 412a, the vertical tube 412b and the horizontal tube 413c. do. The drive shaft 414b is connected to one side of the vertical pipe 412b and the horizontal pipe 412c, so that the disk 412 rotates as the drive shaft 414b rotates.

The wing member 413 is formed on the outer circumferential surface of the disk 412 to guide the movement of food waste introduced into the casing 411, the forward wing (413a), the middle wing (413b), A reverse wing 413c and the like.

The forward wing 413a is formed on the outer circumferential surface of the disk 412 to guide food waste in the flow direction B of the food waste, and the forward wing 413a when viewed from the front of the dryer 41. And the angle α1 between the drive shaft 414b and 20 to 70 degrees, preferably 45 degrees. The forward wing 413a has a predetermined shape, but preferably has a rectangular plate shape.

The middle wing 413b is formed on the outer circumferential surface of the disk 412 to guide stirring of food waste, and the middle wing 413b is the drive shaft 414b when the dryer 42 is viewed from the front. It is formed parallel to).

The reverse blade 413c is formed on the outer circumferential surface of the disk 412 to guide food waste in a direction opposite to the flow direction B. The reverse blade 413c when viewed from the front of the dryer 41. And the angle between the drive shaft 414b has 110 to 160 degrees and preferably has 135 degrees. At least one forward wing 413a, middle wing 413b, and reverse wing 413c may be formed on the single disk 412, and the forward wing 413a may be formed on the first and last disks 412 'and 412 ". ) Is formed.

The driving unit 414 is configured to provide a driving force for rotating the disk 412 and includes a driving motor 414a, a driving shaft 414b, and the like.

The driving motor 414a may be connected to one end of the driving shaft 414b to provide a power for rotating the driving shaft 414b and a motor generally used.

The drive shaft 414b is coupled to the disk 412 so that the disk 412 rotates as the drive shaft 414b rotates.

Looking at the principle of drying and discharging food waste in the dryer 41 having the configuration as described above, in the state where the high temperature steam is circulated inside the disk 412 through the food inlet 411a When food waste flows into the casing 411, the drive motor 414a is operated to rotate the drive shaft 414b to rotate the disk 412. As the disk 412 rotates, the food waste located in the space between the disks C1 collides with the middle wing 413b and is stirred, and collides with the forward wing 413a and the other disk toward the food discharge part 411b. While moving to the interspace C2, moisture is evaporated to dryness and finally discharged to the outside through the food discharge part 411b. In addition, since the disk 412 has a reverse wing 413c, a portion of the food waste located in the other disk space C2 is moved to one disk space C1 on the side of the food inlet 411a. That is, by allowing the food waste to stay in the casing 411 for a relatively long time, it is possible to dry a large amount of food waste to improve the drying efficiency.

The cooler 42 is configured to cool the hot food waste discharged from the dryer 41, and includes a casing 421, an outer tube 422, and a driving unit 423.

The casing 421 is configured to form the main body of the cooler 42, and is made of a predetermined material with a predetermined shape, but preferably has a cylindrical shape with an empty inside and is made of a metal material. The hot food waste introduced into the casing 421 is transferred by the driving unit 423 to be described later. The casing 421 includes a food inlet 421a through which food waste of high heat flows in, and a food outlet 421b through which cooled food waste is discharged.

The outer tube 422 is attached to the outside of the casing 421 to form a cooling water movement path 422a to allow the cooling water to flow along the outer surface of the casing 421, the cooling water movement path 422a Cooling water inlet 422b for supplying cooling water to the cooling water and the cooling water discharge part 422c communicating with the cooling water inlet 422b and discharging the cooling water heated by the food waste of high heat moving inside the casing 421. ). As the cooling water supplied through the cooling water inlet 422b, a liquid separated from the drum separator 2 is used.

The driving unit 423 is configured to move the food waste located inside the casing 421, and includes a driving motor 423a, a driving shaft 423b, a spiral plate 423c, and the like.

The driving motor 423a may be connected to one end of the driving shaft 423a to provide a power for rotating the driving shaft 423a, and a motor generally used may be used.

The drive shaft 423b is configured to couple with the spiral plate 423c, and the spiral plate 423c performs a spiral motion as the drive shaft 423b rotates.

The spiral plate 423c is a plate formed in a spiral shape on an outer surface of the drive shaft 423b located inside the casing 421. The spiral plate 423c is helically moved as the drive shaft 423b rotates to allow the spiral plate 423c to move. The food waste existing therein is moved in the direction of the food discharge part 421b. As shown in FIG. 12, the food waste introduced into the casing 421 through the food inlet 421a is moved by the driving unit 423 in the direction of the food outlet 421b, and the casing is disposed. It is cooled by the coolant flowing through the outer surface of the 421. The cooler 42 may improve the cooling efficiency and economic efficiency by using the liquid separated from the drum selector as cooling water.

The sorting unit 5 is configured to remove foreign substances from the food waste discharged from the dry cooling unit 4 and crush them into fine sizes. Although not shown, a magnetic separator and a magnetic separator to remove foreign substances using magnetic force, It may include a pulverizer for crushing the food waste discharged from the fine size, and a vibration sorter for removing foreign matter by using the vibration of the food waste discharged from the pulverizer. Food waste discharged from the sorting unit 5 may be used as feed, compost and the like.

The oil / water separator 6 is configured to separate the heated liquid discharged from the drum separator 2 and passed through the cooler 42 into oil and water, and includes a receiving portion 61, a liquid inflow pipe 62, The oil discharge pipe 63, the water discharge pipe 64, and the like.

The accommodating portion 61 is configured to store the liquid heated by passing through the cooler 42 by being discharged from the drum selector 2, and has a predetermined shape but is preferably made of a hollow material. It is made of metal material.

The liquid inlet pipe 62 is connected in communication with the receiving portion 61 and is discharged from the drum selector 2 and passes through the cooler 42 to supply the heated liquid.

The oil discharge pipe 63 is connected to the receiving portion 61 to discharge the oil separated from the receiving portion 61 to the outside, the one side of the oil discharge pipe 63 to control the opening and closing The valve 63a is provided. The oil discharged from the oil discharge pipe 63 is used as bio oil.

The water discharge pipe 64 is connected in communication with the receiving portion 61 is configured to discharge the water separated from the receiving portion 61 to the outside, the control to control the opening and closing on one side of the water discharge pipe (64) The valve 64a is installed. As shown in FIG. 14, since the liquid contained in the accommodating part 61 is separated by the oil D being located at the upper side and the moisture E being located at the lower side due to the difference in density, the accommodating part 61 is separated. One end of the oil discharge pipe 63 positioned in the interior of the accommodating portion 61 is located above the one end of the water discharge pipe 64 located in the accommodating portion 61 of the accommodating portion 61. Is located underneath. As the liquid containing oil and water has a higher temperature, oil and water are better separated, and the liquid separated from the drum separator 2 is heated through the cooler 42 and then supplied to the oil and water separator 6. Therefore, the oil and water separation efficiency can be improved.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as falling within the scope of.

1: Shredding Compressor 11: Shredding Separator 12: Air Circulation System
13: press machine 121: air inlet pipe 122: body
123: air discharge pipe
2: drum selector 21: casing 22: filter drum
23: drive unit 24: high pressure cleaning nozzle 25: support
211: wastewater inlet 212: liquid outlet 213: solid component outlet
221: liquid discharge hole 231: drive motor 232: drive shaft
233: spiral plate 241: washing liquid inlet pipe 242: washing liquid sprayer
3: intermediate storage tank
4: dry cooling part 41: dryer 42: cooler
411: casing 412: disk 413: wing member
414: driving unit 411a: food inlet 411b: food outlet
412a: round tube 412b: vertical tube 412c: horizontal tube
413a: forward wing 413b: intermediate wing 413c: reverse wing
414a: drive motor 414b: drive shaft 421: casing
422: outer tube 423: drive unit 421a: food inlet
421b: food outlet 422a: cooling water movement path 422b: cooling water inlet
422c: cooling water discharge part 423a: drive motor 423b: drive shaft
423c: spiral plate 5: sorting unit
6: oil and water separator 61: receiving portion 62: liquid inlet pipe
63: oil discharge pipe 64: water discharge pipe

Claims (5)

A shredding compression unit for shredding, sorting and compressing food waste to remove food waste water; A drum separator for separating food wastewater separated from the shredding compression unit into a solid component and a liquid component; A dryer for drying the food waste from which the food waste water is removed from the shredding compression unit; A cooler configured to cool the food waste discharged from the dryer by using the liquid separated from the drum selector as cooling water; And an oil / water separator for separating the liquid discharged after being used as cooling water in the cooler into oil and water.
The shredding compression unit is connected to the shredding separator and crushed food waste to remove the foreign matter, and connected with the shredding separator to draw out the contaminated air generated during the operation of the shredding sorter and to supply to the shredding sorter after a certain period of time An air circulation device, and a press for separating food wastewater by compressing food waste discharged from the shredding separator,
In the cooler, the liquid separated from the drum selector may be used as the coolant to improve the cooling efficiency of the cooler, and the liquid separated from the drum selector is used as the coolant of the cooler and heated to flow into the oil / water separator. Since the oil and water are separated, the food waste resource recycling device to increase energy efficiency through the circulation of the liquid separated from the food waste water, characterized in that to improve the separation efficiency of oil and water in the liquid. According to claim 1, wherein the air circulation device
An air inlet pipe connected to communicate with the inside of the shredding selector for introducing contaminated air generated in the shredding selector, and a body for being temporarily connected to the end of the air inlet pipe to temporarily receive the contaminated air of the shredding selector. And an air discharge pipe, one end of which is connected in communication with the body part and the other end of which is connected in communication with the crusher, to supply air received in the body part to the crusher. Food waste recycling device that improves energy efficiency through liquid circulation. The method of claim 2, wherein the cooler
A casing, an outer tube which is coupled to the outside of the casing to form a cooling water moving path through which the cooling water moves, and a driving unit which moves the food waste introduced into the casing, wherein the liquid is separated from the food wastewater. Food waste recycling device that improves energy efficiency through circulation. 4. The method according to any one of claims 1 to 3,
The drum sorter includes a filter drum in which the food waste water is introduced and a plurality of liquid discharge holes are formed on an outer surface thereof; A driving unit to rotate the filter drum and move the solid component separated inside the filter drum; Located at the outside of the filter drum at a predetermined interval, the high pressure washing nozzle for spraying a high pressure washing liquid toward the liquid discharge hole for a predetermined period; includes,
The high-pressure washing nozzle is located at the outer side of the filter drum at a predetermined interval, the washing liquid inlet pipe connected to the washing liquid supply device and the washing liquid is supplied, and a plurality of through-holes are formed at a predetermined interval on the outer surface of the washing liquid inlet pipe to wash the washing liquid. A washing liquid spraying hole for spraying the washing liquid inside the inflow pipe toward the liquid discharge hole,
As the filter drum is rotated by the driving unit, a liquid component from the food wastewater introduced into the filter drum is discharged from the filter drum through the liquid discharge hole, and only a solid component remains inside the filter drum. Since the washing nozzle sprays a high pressure washing liquid toward the liquid discharge hole for a predetermined period of time, the energy efficiency is improved through the circulation of the liquid separated from the food waste water, characterized in that it is possible to prevent a solid component from being caught in the liquid discharge hole. Food Waste Recycling Device. 5. The method of claim 4,
The dryer and the casing to form an appearance; A plurality of disks arranged and rotated side by side at a predetermined interval inside the casing, and a disk in which hot steam circulates; A wing member formed on an outer circumferential surface of the disk to guide movement of food waste introduced into the casing; And a driving unit rotating the disk and having a driving shaft connected to the center of the disk.
The wing member is formed on the outer peripheral surface of the disk to guide the food waste in the direction of the flow of food waste, and the reverse blade formed on the outer peripheral surface of the disk to guide the food waste in the direction of the flow of food waste And the food waste moves in a direction opposite to the direction of flow of food waste by the reverse wing, thereby slowing the passage speed of the food waste in the casing to increase the period of time for which food waste is adjacent to the disk,
The forward wing is installed to have an angle of 20 to 70 degrees with the drive shaft when the dryer is viewed from the front, the reverse wing is installed to have an angle of 120 to 160 degrees with the drive shaft when the dryer is viewed from the front Food waste resource recycling device to improve energy efficiency through the circulation of the liquid separated from the food waste water.

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