KR102402072B1 - Waste treatment apparatus and waste treatment method using the same - Google Patents

Abstract

A waste treatment device can include: a crushing device for crushing waste; a guide device connected to the crushing device and determining a movement path of the waste crushed in the crushing device; a first sterilizing device connected to the guide device and transporting the crushed waste guided through a first path from the guide device; and a second sterilizing device connected to the guide device and transporting the crushed waste guided through a second path from the guide device.

Description

Waste treatment device and waste treatment method using same

The present invention relates to a waste treatment device for safely treating medical waste and the like.

Medical wastes such as syringes, cotton wool, bandages, gauze, and gloves generated after medical practices such as surgery or treatment in hospitals may be contaminated with blood, body fluids, excreta, and the like. In order to prevent the spread of pathogens or viruses, these infectious wastes should be safely disposed of separately from general wastes.

In the case of treating infectious waste by incineration, since the waste must be transported from the hospital to the area where the incineration facility is located, there is a possibility of infection spread during transport, and there are disadvantages in that the cost of waste treatment is high due to long-distance transport. In addition, exhaust gas containing harmful components is discharged by incineration, and environmental pollution may also become a problem.

Accordingly, there has been a need for a waste treatment apparatus and a waste treatment method capable of more safely, quickly, and inexpensively treating medical waste and the like.

An object of the present invention is to provide a waste treatment apparatus capable of pulverizing and sterilizing infectious waste and a waste treatment method using the same.

An object of the present invention is to provide a waste treatment apparatus capable of safely and quickly treating infectious waste at a low cost and a waste treatment method using the same.

An object of the present invention is to provide a waste treatment device and a waste treatment method using the same, reducing the emission of environmental pollutants and reducing the emission of environmental pollutants so that the waste treatment device can be installed adjacent to a waste generation source.

Waste treatment apparatus according to the spirit of the present invention, A crushing device for crushing waste, a guide device connected to the crushing device and determining a movement path of the waste crushed by the crushing device, and a pulverized waste connected to the guide device and guided from the guide device to a first path is transported It may include a first sterilization device that is, and a second sterilization device connected to the guide device and the pulverized waste guided to the second path in the guide device is transferred.

The guide device may include a guide flap for guiding the pulverized waste discharged from the crushing device to the first path or the second path. The guide flap may be provided to selectively open or close the inlet of the first sterilization device or the inlet of the second sterilization device.

The first sterilization device and the second sterilization device may be arranged side by side side by side. The first sterilization device and the second sterilization device are each formed with a double wall, a sterilization tank provided with a heating layer between the double walls, a transfer screw for transferring the pulverized waste into the sterilization tank, in the sterilization tank It may include a conveying screw for conveying the waste in the opposite direction to the conveying direction of the conveying screw, and a stirring screw for stirring the waste conveyed into the interior of the sterilization tank.

The conveying screw and the conveying screw are disposed below the stirring screw, and may be eccentrically disposed toward the first sterilizing device or the second sterilizing device.

The conveying screw may have a larger diameter than that of the conveying screw. The conveying screw, the conveying screw, and the stirring screw may be disposed radially adjacent to each other.

The sterilization tank may include a heater for heating the heat medium oil and the heat medium oil filled in the heating layer.

The first sterilization device and the second sterilization device may each include an inlet provided above the upstream end of the feed screw and an outlet provided below the downstream end of the feed screw and the feed screw.

The first sterilizing device and the second sterilizing device may be inclined so that the position of the outlet is higher than the inlet.

It may further include an exhaust device connected to the grinding device, the first sterilization device, and the second sterilization device.

The exhaust device includes a high-temperature catalyst device for deodorizing the air sucked from the grinding device, the first sterilization device and the second sterilization device, and a sterilization filter device for discharging air from the high-temperature catalyst device through a sterilization filter. may include

It may further include an input device provided to supply waste to the crushing device, and a steam spraying device for spraying steam to the input device.

It may further include a weight measuring device for measuring and transmitting the weight of the waste supplied to the input device and the weight of the waste discharged to the discharge device.

The first sterilization device and the second sterilization device are, respectively, a pressure measuring instrument provided to separately measure the internal pressure of the sterilization tank and the internal pressure of the heating layer, and overheat by measuring the internal temperature of the sterilization tank It may further include a temperature controller to prevent.

The waste treatment method according to the spirit of the present invention comprises the steps of pulverizing the waste in a pulverizing device, transferring the pulverized waste in the pulverizing device to a first sterilization device, sterilizing the waste transported to the first sterilizing device , while the step of sterilizing in the first sterilization device is performed, transferring the crushed waste to the second sterilization device, when the step of sterilizing in the first sterilization device is completed, the first sterilization device Discharging the sterilized waste, sterilizing the waste transferred to the second sterilization device while the step of discharging from the first sterilizing device is performed, and discharging the sterilized waste from the first sterilizing device is completed, and It may include discharging the sterilized waste of the second sterilizing device when the step of sterilizing in the second sterilizing device is completed while transferring the crushed waste from the crushing device to the first sterilizing device.

Since the waste treatment apparatus and the waste treatment method using the same according to an embodiment of the present invention pulverize, sterilize and discharge the infectious waste, it is possible to safely and quickly treat the infectious waste.

The waste treatment apparatus and the waste treatment method using the same according to an embodiment of the present invention have a small amount of emission of environmental pollutants and can be installed adjacent to a source of waste for treatment.

1 is a perspective view of a waste treatment apparatus according to an embodiment of the present invention;
Figure 2 is a front view of the waste treatment apparatus of Figure 1;
3 is a plan view of the waste treatment apparatus of FIG. 1;
4 is a perspective view of a guide device and a sterilization device of the waste treatment device of FIG. 1;
Figure 5 is a vertical cross-sectional view of the sterilization apparatus of Figure 4;
Figure 6 is a horizontal cross-sectional view of the sterilization apparatus showing the transfer screw and the transfer screw of the sterilization apparatus of Figure 4;
7 is a flowchart illustrating a waste treatment method according to an embodiment of the present invention.

The configuration shown in the embodiments and drawings described in this specification is only a preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings of the present specification at the time of filing of the present application.

The same reference numbers or reference numerals in each drawing in this specification indicate parts or components that perform substantially the same functions. The shapes and sizes of elements in the drawings may be exaggerated for a clear description.

The terminology used herein is used to describe the embodiments, and is not intended to limit and/or limit the disclosed invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

As used herein, terms including ordinal numbers such as “first”, “second”, etc. may be used to describe various components, but the components are not limited by the terms, and the terms are It is used only for the purpose of distinguishing a component from other components. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a waste treatment apparatus according to an embodiment of the present invention, FIG. 2 is a front view of the waste treatment apparatus of FIG. 1 , and FIG. 3 is a plan view of the waste treatment apparatus of FIG. 1 .

1 to 3 , the waste treatment device 1 according to an embodiment of the present invention includes an input device 110 , a crushing device 100 , a first sterilization device 200 , and a second sterilization device 300 . ), an exhaust device 400 , a guide device 500 , and an exhaust device (not shown).

The input device 110 may be provided above the crushing device 100 to supply waste to the crushing device 100 . The waste transported by the mobile bogie 10 may be put into the input device 110 by automatically raising and rotating the mobile bogie 10 by the lift 120 .

The lift 120 may be designed to be easily transported and not to be jammed during vertical operation. The weight can be designed to be 200 kg. The size of the movable bogie 10 may be designed to have a width of 900 mm, a length of 750 mm, and a height of 750 mm. The lift 120 may include a winch structure. The volume of the input device 110 may be designed to be larger than the volume of the movable bogie 10 . The input device cover (not shown) may be disposed on the input device 110 , and may be provided to seal the input device 110 .

The waste treatment device 1 may include a weight measuring device (not shown) that measures the weight of the waste input to the input device 110 and transmits it to the central processing device. The weighing machine may be provided in the lift 120 or may be provided in the input device 110 .

The waste treatment device 1 may include a steam spraying device (not shown). The steam spraying device may be provided to spray steam into the input device 110 when the crushing device 100 starts a crushing operation. A steam spray nozzle (not shown) may be disposed above the input device 110 .

The crushing device 100 may crush the waste supplied from the input device 110 . The pulverizing device 100 may include a pulverizing blade for pulverizing the waste to a size of 20 mm in width or less than 20 mm in length. The grinding device may include a four-axis grinding blade.

The waste treatment device 1 may include at least one sterilization device 200 , 300 . The waste treatment device 1 according to an embodiment of the present invention is connected to the crushing device 100 and includes a first sterilizing device 200 and a second sterilizing device 300 to which waste crushed by the crushing device is transferred. can The sterilization apparatuses 200 and 300 may sterilize the waste at a high temperature of 165 degrees Celsius or more using a heat tube sterilization method.

The first sterilization apparatus 200 and the second sterilization apparatus 300 may be arranged side by side from side to side to sequentially perform a sterilization process. The waste treatment device 1 operates the crushing device 100 while the first sterilization device 200 performs the sterilization process and supplies waste to the second sterilization device 300 to shorten the total waste treatment time and efficiently and You can safely dispose of waste. The waste treatment apparatus according to another embodiment of the present invention may include three or more sterilization apparatuses, if necessary.

The waste treatment device 1 may include a guide device 500 for determining a movement path of the pulverized waste discharged from the pulverizing device 100 . The guide device 500 may be connected to the outlet of the crushing device 100 and connected to the inlet of the sterilization device 200 , 300 . The guide device 500 guides the pulverized waste discharged from the crushing device 100 to the first path to be introduced into the first sterilization device 200 or to the second path to be introduced into the second sterilization device 300 . can be provided.

The first sterilization device 200 is connected to the guide device 500 to sterilize the pulverized waste that is moved to the first path, and the second sterilization device 300 is connected to the guide device 500 to sterilize the second path. It is possible to sterilize the crushed waste that is transferred to the

The waste treatment device 1 may include an exhaust device (not shown) capable of purifying and discharging exhaust gas generated from the input device 110 , the crushing device 100 , and the sterilization devices 200 and 300 . The exhaust device may include a first exhaust duct, a second exhaust duct, a high temperature catalyst device, a sterile filter device, and an exhaust port.

The first exhaust duct is connected to the crushing device 100, the first sterilizing device 200, and the second sterilizing device 300 to the crushing device 100, the first sterilizing device 200, and the second sterilizing device ( 300) can deliver the sucked air to the high-temperature catalyst device. The first exhaust duct may be connected to an upper portion or a side surface of the input device 110 connected to the crushing device 100 .

A damper (not shown) is installed at the first exhaust duct connection of the input device 110 or the crushing device 100 , the first sterilization device 200 , and the second sterilization device 300 . Heat loss can be prevented by opening the exhaust and closing the damper during sterilization.

The high temperature catalyst device may be oxidatively decomposed by contacting the air sucked from the grinding device 100 , the first sterilization device 200 , and the second sterilization device 300 with a catalyst having a high temperature of 200 degrees Celsius or more. As the catalyst, a noble metal catalyst such as platinum, copper, silver, barium, or nickel may be used.

Air from the hot catalyst device may be passed through a second exhaust duct to the sterile filter device. The sterilization filter device may mix air from the high-temperature catalyst device with the air sucked in from the inside of the waste treatment device 1 , pass it through the sterilization filter, and discharge it to the outside of the waste treatment device 1 through the exhaust port.

The sterilization filter device may use an activated carbon filter or the like to remove harmful substances and odors contained in the air emitted from the high-temperature catalyst device, and may be provided to facilitate replacement and maintenance of the filter.

The waste treatment device 1 may include a discharge device 400 for discharging waste sterilized from the sterilization devices 200 and 300 . The discharging device 400 may include a weight measuring device (not shown) that measures the weight of the discharged waste and transmits it to the central processing unit. The sterilized waste discharged from the discharging device 400 may be transported in a mobile cart.

4 is a perspective view of a guide device and a sterilization device of the waste treatment device of FIG. 1 , FIG. 5 is a vertical cross-sectional view of the sterilization device of FIG. 4 , and FIG. is a horizontal cross-section of

4 to 6 , the sterilization apparatus 200 and 300 may include a sterilization tank 210 , a transfer screw 220 , a transfer screw 230 , and a stirring screw 240 . The transfer screw 220 , the transfer screw 230 , and the stirring screw 240 may be disposed inside the sterilization tank 210 , and a detachable sterilization tank is located on the upper portion of the sterilization tank 210 to facilitate inspection and maintenance. A cover 213 may be disposed.

The sterilization tank 210 may be formed in a closed double-wall structure. The space between the double walls may be filled with thermal oil 211 and a heater (not shown) for heating the thermal oil 211 may be inserted to provide a heating layer. The sterilization tank 210 may have an efficient heat transfer effect by maintaining a uniform temperature inside the tank by the heating layer.

In the lower portion of the sterilization tank 210, a transport screw 220 for transporting the pulverized waste into the tank and a transport screw 230 for transporting the waste in the transport direction (A) and opposite direction (B) of the transport screw in the sterilization tank ) can be placed. The conveying screw 220 may be formed to have a longer length than that of the conveying screw 230 .

A stirring screw 240 for stirring the waste transferred into the sterilization tank 210 may be disposed on the transfer screw 220 and the transfer screw 230 . The stirring screw 240 may include a plurality of stirring blades 241 that are spaced apart from each other along the circumferential direction. The stirring blade 241 may pump up the waste moving by the transfer screw 220 and the transfer screw 230 so that the waste is evenly mixed in the sterilization tank 210 .

The conveying screw 220 , the conveying screw 230 , and the stirring screw 240 may be arranged so that the rotation shafts are parallel to each other. The conveying screw 220 and the conveying screw 230 are disposed below the stirring screw 240 , and may be eccentrically disposed toward the first sterilizing device 200 or the second sterilizing device 300 .

The transfer screw 220 and the transfer screw 230 of the first sterilization apparatus 200 may be disposed to be biased toward the second sterilization apparatus 300 from the center of the stirring screw 240 . The transfer screw 220 of the first sterilization apparatus 200 may be disposed at a position closer to the second sterilization apparatus 300 than the transfer screw 230 .

The conveying screw 220 and the conveying screw 230 of the second sterilizing apparatus 300 may be disposed to be biased toward the first sterilizing apparatus 200 from the center of the stirring screw 240 . The transfer screw 220 of the second sterilization apparatus 200 may be disposed at a position closer to the first sterilization apparatus 200 than the transfer screw 230 .

The transfer screw 220 of the sterilization apparatuses 200 and 300 may be formed to have a larger diameter than the diameter of the transfer screw 230 . The conveying screw 220 , the conveying screw 230 , and the stirring screw 240 may be disposed radially adjacent to each other. The conveying screw 220 may be disposed to be substantially in contact with the conveying screw 230 and the stirring screw 240 , and the conveying screw 230 may be disposed to be substantially in contact with the conveying screw 200 and the stirring screw 240 . have.

An inlet 250 into which waste to be supplied to the sterilization apparatuses 200 and 300 is put may be provided above the upstream end of the transfer screw 220 . A discharge port 260 provided so that waste can be discharged from the sterilization apparatuses 200 and 300 may be provided below the downstream end of the conveying screw 220 and the upstream end of the conveying screw 230 . A cover (not shown) capable of sealing the inlet 250 and the outlet 260 may be provided at the inlet 250 and the outlet 260 of the sterilization apparatus 200 and 300 , respectively.

The guide device 500 may include a guide flap 510 for guiding the pulverized waste discharged from the pulverizing device 100 to the first path or the second path. The guide flap 510 may be provided to selectively open or close the inlet 250 of the first sterilization apparatus 200 or the inlet 250 of the second sterilization apparatus 300 .

The guide flap 510 may form a first path by closing the inlet 250 of the second sterilization apparatus 300 until the first sterilization apparatus 200 is filled with the pulverized waste for sterilization. When the pulverized waste for sterilization is filled in the first sterilization apparatus 200 by a predetermined amount, the guide flap 510 closes the inlet 250 of the first sterilization apparatus 200 and the inlet of the second sterilization apparatus 300 250 may be opened to form a second path.

Sterilization devices 200 and 300 may be inclined so that the position of the outlet 260 is higher than the position of the inlet 250 . The sterilization apparatuses 200 and 300 may be inclined so that the inlet 250 of the sterilization apparatus 200 and 300 is disposed below the outlet of the crushing apparatus 100 .

When the supply of waste to the sterilization apparatuses 200 and 300 is completed, the inlet 250 may be closed and the sterilization process may be started. The conveying screw 220, the conveying screw 230, and the stirring screw 240 continue to rotate even after the supply of the waste into the sterilization tank 210 is completed, so that the waste transferred to the sterilization tank 210 is effectively and evenly heated inside the tank. It can be exposed and sterilized. The conveying screw 220 , the conveying screw 230 , and the stirring screw 240 may be provided so that there is no deformation even at a high temperature.

The sterilization devices 200 and 300 may include a pressure measuring device (not shown) that can measure the pressure inside the sterilization tank 210 and transmit it to the central control device. The sterilization apparatuses 200 and 300 may include a pressure measuring device (not shown) provided to separately measure the internal pressure of the sterilization tank 210 and the internal pressure of the heating layer.

The sterilization apparatuses 200 and 300 may include a temperature controller (not shown) for preventing overheating of the sterilization tank 210 by measuring the temperature inside the sterilization tank 210 . Two or more temperature sensing sensors may be attached to the inside of the sterilization tank 210 .

When the waste is discharged after the sterilization process is completed, the outlet 260 of the sterilization devices 200 and 300 is opened, and the transfer screw 220, the transfer screw 230, The stirring screw 240 may continuously rotate.

The discharging device 400 may be formed in a shape similar to the transfer screw 220 of the sterilization devices 200 and 300 . An inlet 410 into which waste to be supplied to the discharging device 400 is put may be provided above the upstream end of the discharging device 400 . A discharge port 420 provided to discharge waste from the discharge apparatus 400 may be provided at a lower side of the downstream end of the discharge apparatus 400 . The exhaust device of the waste treatment device 1 may also be connected to the exhaust device 400 to suck in air, purify it, and discharge it.

The waste treatment device 1 according to an embodiment of the present invention does not use chemicals for sterilization, and does not emit substances that cause environmental pollution because it includes a double deodorization facility, and it is made in a small size and has a beautiful appearance to harm the environment. may not affect

7 is a flowchart illustrating a waste treatment method according to an embodiment of the present invention.

1 to 7 , the waste treatment method according to an embodiment of the present invention can more safely and efficiently treat infectious wastes and the like by using the waste treatment apparatus shown in FIGS. 1 to 6 .

When the waste treatment apparatus 1 is operated, the conveying screw 220 , the conveying screw 230 and the stirring screw 240 of the sterilization apparatuses 200 and 300 may be operated first. When the mobile cart 10 containing the infectious waste is mounted on the lift 120, a weight measuring device (not shown) may measure the weight of the waste and transmit it to a central control unit (not shown).

When the mobile bogie 10 rises by the lift 120 and reaches the input device 110, the input device cover (not shown) is opened and the movable cart 10 rotates to put waste into the input device 110. have. When the input is completed, the input device cover (not shown) is closed, and steam is sprayed into the input device 110 , while the crushing device 100 operates to crush the waste ( S610 ).

The crushing device 100 may be stopped after crushing the waste to a preset size and operating for a preset time. The grinding apparatus 100 may repeatedly perform the grinding operation up to a preset cumulative weight. The crushing device 100 may crush the waste to a size of 20 mm X 20 mm, and may be stopped after operation for 2 minutes and 20 seconds. The grinding operation may be repeatedly performed until the accumulated weight reaches 400 kg to 500 kg.

In a state in which the outlet of the crushing device 100, the inlet of the first sterilization device 200 are opened, and the guide flap 510 of the guide device 500 closes the inlet of the second sterilization device 300, the first sterilization device The waste pulverized by the crushing device 100 by the transfer screw of 200 may be transferred to the first sterilizing device 200 (S620). During the crushing and transporting of waste, all dampers are opened and the exhaust device is operated, so that the air inside the input device 110 , the crushing device 100 , and the first sterilization device 200 can be sucked in, purified, and then discharged.

When the transfer of a predetermined amount of pulverized waste to the first sterilization device 200 is completed, the inlet and outlet of the first sterilization device 200 are closed, and the first sterilization device 300 and the exhaust duct (not shown) The damper provided in between may also be closed.

While the waste is being transported, the first sterilization apparatus 200 may be prepared in a preheated state to a predetermined temperature. When the waste supply to the first sterilization apparatus 200 is completed and the first sterilization apparatus 200 is completely sealed, the first sterilization apparatus 200 may perform a sterilization process (S630). While the sterilization operation is performed in the first sterilization apparatus 200, the conveying screw, the conveying screw, and the stirring screw may agitate the waste while rotating at a low speed. The first sterilization apparatus 200 may sterilize the waste at a predetermined temperature or higher for a predetermined time. The first sterilization apparatus 200 may sterilize the waste for 40 minutes at 100 degrees Celsius or more.

While the step of sterilization in the first sterilization device 200 is performed, the crushing device 100 pulverizes the waste and the second sterilization device 300 may transfer the pulverized waste to the second sterilization device 300 ( S631).

When the transfer of a predetermined amount of pulverized waste to the second sterilization device 300 is completed, the outlet of the pulverizing device 100, the inlet and outlet of the second sterilization device 300 are closed, and the second sterilization device 300 ) and the damper provided between the exhaust duct (not shown) may also be closed.

While the waste is being transferred, the second sterilization device 300 may be prepared in a preheated state to a predetermined temperature. When the waste supply to the second sterilization apparatus 300 is completed and the second sterilization apparatus 300 is completely sealed, the second sterilization apparatus 300 may perform a sterilization process (S641).

The supply of wastes to the first sterilization device 200 and the second sterilization device 300 are all completed, and the input device 110 , the crushing device 100 , the first sterilization device 200 and the second sterilization device 300 . When all of the dampers are closed, the exhaust device may stop after a predetermined time has elapsed.

When the sterilization process is completed in the first sterilization apparatus 200, the outlet of the first sterilization apparatus 200 is opened and the discharge apparatus 400 is operated to discharge the sterilized waste of the first sterilization apparatus (S640). . The first sterilization apparatus 200 may sound an alarm when the sterilization process is completed or light an alarm lamp to inform the operator that the waste is completely sterilized and ready for discharge. When the discharge of waste from the first sterilization device 200 starts, the damper is opened and the exhaust device is operated to suck in the air inside the first sterilization device 200 , and then it can be purified and then discharged. The discharge device 400 may measure the weight of the discharge from the first sterilization device 200 and transmit it to the central control device.

When the discharge of the sterilized waste from the first sterilization device 200 is completed, the waste pulverized from the crushing device 100 is blocked by blocking the outlet of the first sterilizing device 200 and opening the inlet of the first sterilizing device 200 . may be transferred to the first sterilization device (S620).

When the sterilization step (S630), the discharge step (S640) and the restarted transfer step (S620) are performed in the first sterilization device 200 in the second sterilization device 300, when the sterilization step (S631) is completed, the second sterilization The discharge port of the device 300 is opened and the discharge device 400 is operated to discharge the sterilized waste of the second sterilization device (S621). The discharging step (S621) of the second sterilization device 300 may be performed the same or similar to the discharging step (S640) of the first sterilization device 200 . After all the sterilized wastes of the second sterilization apparatus 300 are discharged (S621), the process of transferring the pulverized wastes of the crushing apparatus 100 to the second sterilization apparatus (S631) may be repeated.

The rapid waste disposal method according to an embodiment of the present invention can safely and environmentally friendly waste treatment at a faster time and at a low cost by using two sterilization devices.

In the above, the configuration and features of the present invention have been described based on the embodiments of the present invention, but the present invention is not limited thereto, and it is understood that various changes or modifications can be made within the spirit and scope of the present invention. It is apparent to those skilled in the art, and therefore, such changes or modifications are intended to fall within the scope of the appended claims.

1: waste disposal unit 10: mobile bogie
100: crushing device 110: dosing device
120: lift 200, 300: sterilizer
210: sterilization tank 211: thermal oil
213: sterilization tank cover 220: transfer screw
230: conveying screw 240: stirring screw
241: stirring blade 250: inlet
260: outlet 400: exhaust device
410: inlet 420: outlet
500: guide device 510: guide flap

Claims (14)

crushing device for crushing waste;
a guide device connected to the pulverizing device and configured to determine a movement path of the waste pulverized in the pulverizing device;
A first sterilization device connected to the guide device and the pulverized waste guided to the first path in the guide device is transported; and
A second sterilization device connected to the guide device and the pulverized waste guided to the second path in the guide device is transported; including,
The first sterilization device and the second sterilization device are arranged side by side from side to side,
The first sterilization device and the second sterilization device are each,
a sterilization tank formed with double walls and provided with a heating layer between the double walls;
a transfer screw for transferring the pulverized waste into the sterilization tank;
a conveying screw for conveying waste in the sterilization tank in a direction opposite to the conveying direction of the conveying screw; and
A waste treatment device comprising a; a stirring screw for agitating the waste transferred to the inside of the sterilization tank. According to claim 1,
The guide device includes a guide flap for guiding the pulverized waste discharged from the crushing device to the first path or the second path,
The guide flap is a waste treatment device provided to selectively open or close the inlet of the first sterilization device or the inlet of the second sterilization device. delete According to claim 1,
The conveying screw and the conveying screw are disposed below the stirring screw, and are disposed eccentrically toward the first sterilizing device or the second sterilizing device. According to claim 1,
The conveying screw is formed with a diameter larger than the diameter of the conveying screw,
and the conveying screw, the conveying screw and the stirring screw are disposed radially adjacent to each other. According to claim 1,
The sterilization tank,
a heating medium oil filled in the heating layer; and
A waste treatment device comprising a; heater for heating the thermal oil. According to claim 1,
The first sterilization device and the second sterilization device are each,
an inlet provided above the upstream end of the feed screw; and
Waste treatment apparatus comprising a; the conveying screw and an outlet provided below the downstream end of the conveying screw. 8. The method of claim 7,
The first sterilizing device and the second sterilizing device are disposed to be inclined so that the position of the outlet is higher than that of the inlet. According to claim 1,
The waste treatment device further comprising an exhaust device connected to the crushing device, the first sterilization device, and the second sterilization device. 10. The method of claim 9,
The exhaust device is
a high-temperature catalyst device for deodorizing air sucked from the grinding device, the first sterilization device, and the second sterilization device; and
and a sterilization filter device for discharging air from the high-temperature catalyst device through a sterilization filter. According to claim 1,
an input device provided to supply waste to the crushing device; and
Waste treatment apparatus further comprising a steam spraying device for spraying steam to the input device. 12. The method of claim 11,
Waste treatment apparatus further comprising a weight measuring device for measuring and transmitting the weight of the waste supplied to the input device and the weight of the waste discharged to the discharge device. According to claim 1,
The first sterilization device and the second sterilization device are each,
a pressure measuring device provided to separate and measure the internal pressure of the sterilization tank and the internal pressure of the heating layer; and
Waste treatment device further comprising a; temperature controller to prevent overheating by measuring the temperature inside the sterilization tank. delete

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