KR101333499B1 - Device of radioactive waste carbonization - Google Patents

Abstract

A radioactive waste carbonization apparatus is disclosed. Radioactive waste carbonization apparatus according to an embodiment of the present invention is a crusher for crushing the radioactive waste; A feeder for transferring radioactive waste crushed in the crusher; An input chamber in which air is removed before the waste conveyed from the feeder is carbonized; A first conveyer for conveying radioactive waste supplied through the input chamber; A vacuum chamber installed between the input chamber and the first conveyor; A second feeder provided to continuously transport the radioactive waste conveyed from the first feeder, a microwave generator positioned to be spaced outwardly of the second feeder and provided to emit microwaves toward the radioactive waste; And a housing including a carbide outlet opening for discharging carbonized radioactive waste, and a gas outlet opening for discharging gas generated when the radioactive waste is carbonized, and inserted into an inner center of the housing and in the housing. A carbonizer including a rotating body to be rotated and support members provided at both ends of the rotating body; A cooling chamber provided at the front and rear ends of the carbonizer; A drive unit provided for operation of the first conveyor and the second conveyor; A high temperature chamber in communication with the carbonizer for separating harmful substances contained in a gas generated during carbonization; A condenser in communication with the hot chamber and having a diffusion chamber configured to liquefy a hot gas through heat exchange, and to diffuse in a predetermined space before the hot gas is liquefied; And a vacuum pump in communication with the condenser and sucking the gas at a vacuum pressure.

Description

Radioactive waste carbonization

The present invention relates to a carbonization apparatus used for treatment of waste generated from a nuclear power plant. More specifically, carbonization of a low-level waste, such as clothing or gloves contaminated with radioactivity, is carried out at a minimum volume and carbonization. The present invention relates to a radioactive waste carbonization apparatus that can protect the carbonizer from the high temperature heat generated during application.

In general, radioactive waste such as clothes, gloves, and shoes that are disposed of after being used in a nuclear reactor facility cannot be incinerated unlike general waste due to radioactive contamination, and is disposed of in a separate storage facility after being enclosed in a waste storage facility. The method is commonly used.

However, the cost of creating artificial spaces underground is being excessively administered, and in particular, it is not necessary to provide a space deep enough so that there is no risk of radiation leakage. Difficulties in determining nuclear waste storage are a global trend.

In addition, unlike landfilling of nuclear waste, ocean dumping is easily used as a method of treating nuclear waste by reducing the cost of storage construction without facing opposition from residents.

Since the nuclear waste storage facility on land is already saturated and there are a lot of old reactors and other nuclear wastes, the possibility of dumping at sea cannot be ruled out. The marine ecosystem, which contains important biological resources, is connected to the food chain. The damage extends to human health as well as to marine environments and marine ecosystems.

Conventionally, in order to solve such a problem, by using the waste heat generated during incineration, the high temperature hydrogen gas obtained by thermally active catalytic chemical reaction melts radioactive nuclear waste into complete combustion, which threatens life and health such as radioactive leakage. The aim was to provide a radioactive nuclear waste pyrolysis molten incineration system using hydrogen gas as a fuel capable of environmentally friendly incineration, which minimizes the generation of harmful substances.

However, the conventional radioactive nuclear waste pyrolysis melt incineration system has a problem in that the installation place is limited due to the separate operation of the incinerator for incineration, and the residents cannot provide a pleasant environmental condition due to the incineration.

Republic of Korea Patent Application Publication No. 10-2004-0004226 (Published: November 03, 2004)

Embodiments of the present invention can be minimized by the process of changing to a minimum volume state through the carbonization of low-level waste and easy treatment for a large amount of radioactive waste, and the high-temperature conditions as the low-level waste is carbonized It aims at the stable operation of the carbonizer exposed to the air.

Embodiments of the present invention are intended to prevent the generation of air pollution by the harmful substances by stably purifying the harmful substances generated as the low-level waste is carbonized and then discharged to the atmosphere.

According to one aspect of the invention, the crusher radioactive waste is crushed; A feeder for transferring radioactive waste crushed in the crusher; An input chamber in which air is removed before the waste conveyed from the feeder is carbonized; A first conveyer for conveying radioactive waste supplied through the input chamber; A vacuum chamber installed between the input chamber and the first conveyor; A second feeder provided to continuously transport the radioactive waste conveyed from the first feeder, a microwave generator positioned to be spaced outwardly of the second feeder and provided to emit microwaves toward the radioactive waste; And a housing including a carbide outlet opening for discharging carbonized radioactive waste, and a gas outlet opening for discharging gas generated when the radioactive waste is carbonized, and inserted into an inner center of the housing and in the housing. A carbonizer including a rotating body to be rotated and support members provided at both ends of the rotating body; A cooling chamber provided at the front and rear ends of the carbonizer; A drive unit provided for operation of the first conveyor and the second conveyor; A high temperature chamber in communication with the carbonizer for separating harmful substances contained in a gas generated during carbonization; A condenser in communication with the hot chamber and having a diffusion chamber configured to liquefy a hot gas through heat exchange, and to diffuse in a predetermined space before the hot gas is liquefied; And a vacuum pump in communication with the condenser and sucking the gas at a vacuum pressure.
The carbonizer includes a generator which is installed in the rotating body and generates high temperature heat by microwaves.
The cooling chamber includes a first cooling chamber surrounding the outer side of the support member and provided at a front end of the housing and supplied with low temperature cooling water, and a second cooling chamber provided at a rear end of the housing and supplied with low temperature cooling water. .
The housing includes a heat insulator provided along the inner circumferential direction.
The radioactive waste carbonization apparatus includes a cooler for supplying low temperature cooling water to the cooling chamber and the condenser.
The cooling chamber is characterized in that it is made of a form surrounding the outer side of the support member.
The first to second cooling chambers are characterized in that the cooling water is supplied at the same time through the cooler.
The condenser is a plurality of gas liquefied tube disposed vertically along the longitudinal direction inside the gas flow; And a condensate storage tank connected to a lower end of the condenser and storing the condensed water liquefied through the gas liquefaction pipe.
The condenser further includes a liquefied pipe flange, each of which is provided at an upper and a lower inner side thereof and into which a plurality of gas liquefied pipes are inserted.
The condenser includes a drain chamber provided below the gas liquefaction tube; It includes a drain pipe for draining the condensed water supplied to the drain chamber to the condensate storage tank.
The microwave generator is characterized in that it is disposed toward the center of the second conveyor.
The carbonizer further includes a carbide compressor for compressing the carbonized radioactive waste to a minimum volume.
The first conveyor and the second conveyor is characterized in that arranged in the same position.

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Embodiments of the present invention are intended to prevent the seizure of the bearing provided in the carbonizer while simultaneously treating the low-level wastes by deforming to a minimum volume state.

Embodiments of the present invention can prevent the generation of air pollution through a separate treatment process for the harmful substances generated during carbonization.

Embodiments of the present invention can improve the workability and prevent secondary damage due to radiation through rapid carbonization of low-level wastes.

1 is a front view showing a radioactive waste carbonization apparatus according to an embodiment of the present invention.
Figure 2 is a view showing the charge chamber and the carbonization chamber provided in the radioactive waste carbonization apparatus according to an embodiment of the present invention.
3 is a view listing each component on the basis of the flow of gas discharged through the radioactive waste carbonization apparatus according to an embodiment of the present invention.
Figure 4 is an enlarged view showing a cooling chamber provided in the radioactive waste carbonization apparatus according to an embodiment of the present invention.
5 to 6 is an operating state diagram of the radioactive waste carbonization apparatus according to an embodiment of the present invention.

A configuration of a radioactive waste carbonization apparatus according to an embodiment of the present invention will be described with reference to the drawings. 1 is a front view showing a radioactive waste carbonization apparatus according to an embodiment of the present invention, Figure 2 is a view showing an input chamber and a carbonizer provided in the radioactive waste carbonization apparatus according to an embodiment of the present invention, Figure 3 is a view listing each component on the basis of the flow of gas discharged through the radioactive waste carbonization apparatus according to an embodiment of the present invention.

Prior to the description, the radioactive waste carbonization apparatus 1 according to the present embodiment performs a carbonization machine by cooling to prevent deterioration and carbonization of bearings and grease exposed to a high temperature environment in the process of carbonizing low-level waste contaminated with radiation. With stable use of the carbon, the carbide is compressed and discharged to a minimum volume state, and the gas generated while the carbide is carbonized is purified and discharged to the atmosphere for use.

1 to 3, the radioactive waste carbonization apparatus 1 includes a crusher 100 in which radioactive waste is crushed, a feeder 200, and a carbide fed through the feeder 200. The injection chamber 300 and the first feeder 400 for transferring the radioactive waste supplied through the input chamber 300, and the vacuum installed between the input chamber 300 and the first feeder 400 Chamber 302; The second feeder 510 is provided to continuously transport the radioactive waste transported from the first feeder 400, and is disposed to be spaced apart from the outside of the second feeder 510 to emit microwaves. A housing including a microwave generator 520, a carbide outlet 532 opened for the discharge of carbonized radioactive waste, and a gas outlet 534 opened for the discharge of gas generated while the radioactive waste is carbonized 530, a rotating body 540 inserted into an inner center of the housing 530 and rotating inside the housing 530, and support members 551 provided at both ends of the rotating body 540. The carbonizer 500, the cooling chamber 560 provided at the front and rear ends of the carbonizer 500, and the first conveyor 400 and the second conveyor 510. In communication with the driven part 600 and the carbonizer 500, and is generated during carbonization. A high temperature chamber 700 for separating harmful substances contained therein, and communicating with the high temperature chamber 700 and liquefying a high temperature gas through heat exchange, but diffusion is performed in a predetermined space before the high temperature gas is liquefied. A condenser 800 having a diffusion chamber 802 formed to be made; And a vacuum pump 900 in communication with the condenser 800 and sucking the gas at a vacuum pressure.

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The radioactive waste carbonization apparatus 1 is provided with a crusher 100 for incineration of low-level radioactive waste such as clothing and shoes in which the radioactivity intensity is detected relatively low.

The shredder 100 is provided with a door 101 installed to open and close so that low-level radioactive waste is input, and a shredding gear 102 that is tooth-coupled to shred the radioactive waste at a position spaced below the door 101. A waste outlet provided to rotate the crushing gear 102 and the low-level waste crushed by the crushing gear 102 to the feeder 200 are provided below the crusher 100. 104.

After the feeder 200 is in communication with the waste outlet, the feeder 200 is installed vertically on the outside of the feeder 200 and has a feeding screw 202 provided therein and a feeding motor provided at an end of the feeding screw 202. 204 and a feeding supply pipe 206 bent at an angle to supply the radioactive waste fed by the feeding screw 202 to the input chamber 300.

The feeder 200 may adjust the amount of low-level waste supplied to the input chamber 300 according to the rotational speed of the feeding motor 204, and the feeding motor 204 for stable carbonization in the carbonizer 500 to be described later. When n is more than n revolutions, the operation of the feeding motor 204 is stopped, and when n is less than n revolutions, the feeding motor 204 is continuously operated. Through this, the supply amount for the low level waste in which the low level waste is supplied to the carbonizer 500 may be selectively adjusted.

An input chamber according to an embodiment of the present invention will be described with reference to the drawings.

2 to 3, the input chamber 300 has a rectangular shape, and is supplied to the carbonizer 300 in a vacuum state where air is removed before the radioactive waste is supplied to the carbonizer 500. It includes a vacuum chamber 302 made of a predetermined size inside the input chamber 300 as possible.

The vacuum chamber 302 may include a tube connected to a vacuum pump 900 to be described later to form a vacuum, and the inside of the vacuum chamber 302 may be maintained in a vacuum state through the tube.

Although the vacuum chamber 302 is formed as a separate area, the vacuum state is not always maintained by the blocking unit 310 that selectively blocks the upper and lower spaces based on the vacuum chamber 302. Can be formulated.

The blocking unit 310 includes a second breaker 312 selectively blocking the upper region of the vacuum chamber 302, and a first breaker 314 selectively blocking the lower region.

The first breaker 314 includes a first block plate 314a having a plate shape and a first actuator 314b for moving the first block plate 314a in the front and rear directions.

The second breaker 312 includes a second block plate 312a having a plate shape, and a second actuator 312b for moving the second block plate 312a in the front and rear directions.

The first blocking plate 314a preferentially blocks the lower region of the vacuum chamber 302 compared to the second blocking plate 312a, and after the radioactive waste is stacked on the first blocking plate 314a, The second blocking plate 312a blocks the upper region of the vacuum chamber 302 and keeps it in a closed state. In addition, in the above state, the first blocking plate 314a is retracted outward so that the lower region of the vacuum chamber 302 is opened while all remaining air inside the vacuum chamber 302 is removed through the tube for a predetermined time. While being transported to the low-level waste through the first conveyor 400 to be described later.

After all of the radioactive waste has been transferred, the first blocking plate 314a is drawn out to keep the lower area of the vacuum chamber 302 closed again, and the second blocking plate 312a is vacuum chamber 302. The low level waste conveyed through the feeding screw 202 described above is resupplied as it is moved inwardly to open the upper region.

The first conveyer 400 is provided below the vacuum chamber 302 and includes a first conveying screw 402 having a predetermined length, and the first conveying screw 402 is a driving part 600 which will be described later. Receives a rotational force through and rotates at a predetermined speed to transport the low-level waste. There is no particular limitation on the feed pitch and screw size of the first feed screw 402, but it is noted that the length and size may be changed for smooth transfer of the radioactive waste to be supplied.

The first conveying screw 402 may include a first conveying shaft inserted into the center, and the first conveying shaft may be stably supported at both ends by a supporting member 551 which will be described later.

The driving unit 600 may rotate the chain coupled with the sprocket (not shown) inserted into the above-described first transfer shaft to rotate the first feed screw 402 in one direction, and the second feeder 510 to be described later. ) Rotate together.

A carbonizer according to an embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 2, the carbonizer 500 includes a housing 530 having a cylindrical shape, and a housing 530 formed by a driving force inserted into an inner center of the housing 530 and generated by the driving unit 600. Rotor 540 is rotated in the interior, the support member 551 provided at both ends of the rotator 540, and the generator is installed on the rotator 540, the high temperature heat generated by the microwave 570.

The carbonizer 500 is a place where carbonization is performed on the crushed radioactive waste, and the inside of the carbonizer 500 is maintained by a plurality of microwave generators 520 and heated to a temperature of about 1000 ° C.

A plurality of microwave generators 520 are installed on the outside of the housing 530, and are disposed toward the center of the second conveyor 510. The microwave generator 520 is spaced apart along the longitudinal direction of the housing 530 and spaced about the second conveyor 510 to create a high temperature temperature atmosphere for the inner region of the housing 530. The installation of the angle within 90 ° can prevent the disturbance of the microwave.

The cooling chamber 560 is provided to achieve stable rotation of the second feeder 510 that is rotated inside the carbonizer 500. In more detail, the carburetor 500 is provided with a rotating body 540 rotated by the driving unit 600, and the second feeder 520 positioned in the center of the rotating body 540 has a rotating body. Rotation is made with 540.

Both ends of the rotating body 540 are supported by the support member 551, and the support member 551 includes a bearing disposed along the circumferential direction. Grease is applied between the rotor 540 and the bearing for stable rotation, and the first and second cooling chambers 562 and 564 to prevent the grease from being thermally fixed by the carbonizer 500 heated to a high temperature state. ) Is provided.

That is, the first and second cooling chambers 562 and 564 are formed to surround the outside of the support member 551 in which the bearings are located, and are located at opposite sides of the inlet 560a and the inlet 560a into which the coolant at low temperature flows. It includes an outlet 560b that is opened and is supplied with low-temperature cooling water through the cooler 10 to be described later.

Although the carbonizer 500 operates the microwave generator 520 and the bearings and greases provided at both ends of the rotor 540 may be exposed to a high temperature environment, the first and second cooling chambers 562 and 564 may be used. While cooling to a predetermined temperature, sticking and malfunction of the bearing due to deterioration of grease can be prevented.

The first and second cooling chambers 562 and 564 are installed at both ends of the rotating body 540. The heat dissipation of the support member 551 is achieved, but the inside of the carbonizer 500 is maintained at a high temperature to provide stable carbonization. To do this.

Cooling water supplied to the first and second cooling chambers 562 and 564 may be introduced with low temperature cold water, but is not limited thereto. In addition, a heat dissipation fin (not shown) is provided for easier heat dissipation in the first and second cooling chambers 562 and 564, or a guide for guiding the movement path of the coolant so that the coolant does not move quickly through the outlet 560b. It may further include a guide (not shown).

The first and second cooling chambers 562 and 564 may be supplied with coolant at the same time through the cooler 10, and continuously supply coolant while the carbonizer 500 is operated through the inlet 560a and the outlet 560b. do. The cooler 10 may further include a coolant circulation pump (not shown) for supplying the coolant to the first and second cooling chambers 562 and 564, and according to the internal temperature of the carbonizer 500, the amount and speed of the cooler 10 may be increased. Can be changed.

The first and second cooling chambers 562 and 564 may be formed as empty spaces having a predetermined size, and heat dissipation fins may be installed on the outside to more effectively radiate heat.

The carbonizer 500 further includes a carbide compressor 502 for compressing the carbonized radioactive waste to a minimum volume. The carbide compressor 502 is composed of a combination of a plurality of piston cylinders, and is provided for discharging the carbide in a compressed state.

The housing 530 includes a carbide outlet 532 opened for the discharge of carbonized low-level waste, and a gas outlet 534 opened for the discharge of gas generated while the low-level waste is carbonized, and the carbide outlet ( 532 is in communication with a carbide compressor 502, described below.

Briefly describing the state of the low-level waste moved into the carbonizer 500, the low-level waste in the vacuum state inside the housing 530 is a high temperature of 1000 ℃ or more by the microwave generated from the microwave generator 520 It is exposed to and starts to carbonize, and is conveyed at a predetermined speed toward the carbide outlet 532 by the second conveyor 510.

As the low-level waste is reduced in volume at the same time as carbonization, gases such as sulfur oxides (SOx) and nitrogen oxides (NOx) are generated, and the gas is moved through the gas outlet 534.

The generator 570 is installed in a plurality spaced apart at predetermined intervals along the circumferential direction of the rotating body 540, and acts as a heat source for carbonizing radioactive waste after being heated to a high temperature state by microwaves, silicon carbide Is used as the main material.

The housing 530 includes a heat insulating material 536 provided along the inner circumferential direction, and the heat insulating material 536 is provided for heat insulating the carbonizer 500, and a fire resistant heat insulating material may be used.

In order for the low-level waste to be carbonized, the inside of the housing 530 should be maintained at a high temperature. However, when heat is discharged to the outside, efficiency may be deteriorated. Preferably, the heat insulator 536 may be used as a cera crown, but is not limited to the material.

The first conveyor 400 and the second conveyor 510 according to an embodiment of the present invention are disposed at the same position. The reason for this arrangement is that when the low level waste is transferred from the first conveyer 400 to the second conveyer 510, the low level waste does not accumulate toward the second conveyer 510 where the carbonizer 300 is located. This is to transfer the stably.

The reason for this arrangement is that when the first feeder 400 and the second feeder 510 are located at different positions, smooth transfer of low-level waste cannot be achieved by the step between each other. The second conveyor 510 has a relatively larger diameter than the first conveyor 400.

The driving unit 600 includes a first motor (not shown) for the rotation of the first conveyor 400 and a second motor (not shown) provided for the rotation of the second conveyor 510. The rotation state can be controlled by the controller.

The high temperature chamber 700 is provided in order to separate harmful substances included in the gas generated when carbonizing and communicating with the carbonizer 500. The high temperature chamber 700, like the carbonizer 500, includes a plurality of microwave generators 702 and is installed in a vertical direction therein, and includes a generator 704 for generating high temperature heat by microwaves.

A condenser according to an embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 4, the condenser 800 communicates with the high temperature chamber 700, is disposed vertically along an inner length direction, and includes a plurality of gas liquefied tubes 810, into which gas is introduced, of the condenser 800. And a condensate storage tank 820 connected to a lower end and storing the condensed water liquefied through the gas liquefaction pipe 810.

The condenser 800 further includes a liquefaction tube flange 800a provided at each of the upper and lower inner sides thereof and into which a plurality of gas liquefaction tubes 810 are inserted.

The condenser 800 has a predetermined length in the longitudinal direction and is formed to extend, is provided above the liquefied pipe flange 800a and is provided below the liquefied pipe flange 800a in which gas is diffused. The drain chamber 804 is provided, and a drain pipe 806 for draining the condensed water supplied to the drain chamber 804 to the condensate storage tank 820.

The diffusion chamber 802 is formed in a predetermined space, and is provided to uniformly supply gas to the plurality of gas liquefaction tubes 810 before the gas introduced into the condenser 800 is exchanged with the low temperature cooling water.

The drain chamber 804 has a size corresponding to that of the diffusion chamber 802, and receives condensate discharged from the plurality of gas liquefaction tubes 810 for stable drainage of the condensate heat exchanged with the cooling water to the drain pipe 806. To promote condensate movement.

The gas liquefaction tube 810 forms a concentric circle around the center of the condenser 800, and a plurality of the gas liquefied tubes may be disposed in a radial shape.

The condensate storage tank 820 is a tank in which condensate is stored and drained, and has a predetermined size and is kept in a closed state.

The operating state of the radioactive waste carbonization apparatus according to an embodiment of the present invention configured as described above will be described with reference to the drawings.

Referring to FIGS. 5 to 6, the operator puts low-level waste such as clothes and shoes contaminated with radiation into the shredder 100 to shred the radioactive waste, and then operates the shredder 100 to operate the low-level waste. Crush the waste.

At the same time, in order to keep the inside of the carbonizer 500 at a high temperature, the microwave generator 520 is operated to perform heat dissipation through the generator 570 (see FIG. 1), and the vacuum pump 900 is also operated at the same time. The carbonizer 500, the high temperature chamber 700, and the condenser 800 are maintained in a vacuum state.

The crushed low level waste is discharged through the waste outlet and moved upward along the feeding screw 202 (see FIG. 1) which is rotated at a predetermined speed by the operation of the feeding motor 204 (see FIG. 1).

At the same time, as the first blocking plate 314a is advanced into the vacuum chamber 302 by the first actuator 314b, the lower region of the vacuum chamber 302 is closed and transferred by the feeding screw 202. A large amount of low level waste is stacked. As the second blocking plate 312a is advanced by the second actuator 312b, the upper region of the vacuum chamber 302 is closed, and the air remaining in the vacuum chamber 302 may cause combustion during carbonization. All the suction through the vacuum pump 900 through the discharge.

The vacuum chamber 302 is discharged all the remaining air after a predetermined time elapsed, and the vacuum state is maintained, the first blocking plate 314a is reversed by the first actuator 314b, a large amount of low-level waste is removed The first feeder 400 is transferred to the second feeder 510.

The second conveyer 510 is rotated at a predetermined speed by the drive unit 600 to transfer the broken low-level waste, and the carbonization of the low-level waste is made by the hot air generated in the generator 570 .

Since the temperature of the carbonizer 500 is elevated in a high temperature state of 1000 ° C. or more, the bearing and grease provided in the support member 551 may conduct high temperature heat.

The cooler 10 is operated simultaneously with the operation of the carbonizer 500 while supplying the coolant of the low temperature to the first and second cooling chambers 562 and 564 and continuously controlling the coolant of the low temperature to be circulated. Despite the condition of the carbonizer 500 operating in the state of the bearing or grease is not fixed and stable heat dissipation is made. If the temperature of the carbonizer 500 is a high temperature state, the circulation pump is operated, and the heat dissipation may be faster as the moving speed of the cooling water circulated through the first and second cooling chambers 562 and 564 increases.

The rotating body 540 is rotated at a predetermined speed by the driving force generated in the driving unit to carbonize low-level wastes by the generator 570, and unnecessary heat to the outside of the housing 530 by the heat insulator 536. As the loss is blocked, all of the high temperature heat generated by the generator 570 is supplied to the low level waste.

The carbide is transported to one side by the second conveyor 510 and then moved outward through the carbide outlet 532, and the gas generated while the carbide is generated is transferred to the high temperature chamber 700 through the gas outlet 534. Is moved. As the gas is carbide, a gas containing harmful substances including sulfur oxide (SOx) and nitrogen oxides (NOx) is generated, and the gas containing the harmful substances is moved to the high temperature chamber 700.

In the high temperature chamber 700, the sulfur oxide (SOx) and the nitrogen oxide (NOx) are decomposed and moved to the diffusion chamber 802 of the condenser 800 while the inside of the high temperature chamber 700 maintains a temperature of about 1500 ° C. .

The condenser 800 is kept in a low temperature state by the low temperature cooling water supplied from the cooler 10, and relatively hot gases are introduced into each other after the gas liquefaction tube 810 is introduced from the diffusion chamber 802. Heat exchange takes place.

The hot gas is liquefied while being moved by the suction pressure of the vacuum pump 900 to the lower side of the gas liquefied pipe 810 and stored in the condensate storage tank 820 via the drain chamber 804 and the drain pipe 806. .

The gas containing most of the harmful substances is liquefied and condensed in a liquid state, and the excess gas is discharged into the atmosphere after the remaining harmful gases and odors are removed through a filter provided separately through the vacuum pump 900.

The carbide is moved to the carbide compressor 502 via the carbide outlet 532 and then compressed to a minimum volume and discharged to the outside.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit of the invention as set forth in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

100: shredder
200: feeder
300: input chamber
400: first feeder
500: Carbonizer
510: second feeder
560: cooling chamber
600: drive unit
700: high temperature chamber
800: condenser
900: vacuum pump

Claims (13)

A crusher in which radioactive waste is crushed;
A feeder for transferring radioactive waste crushed in the crusher;
An input chamber in which air is removed before the waste conveyed from the feeder is carbonized;
A first conveyer for conveying radioactive waste supplied through the input chamber;
A vacuum chamber installed between the input chamber and the first conveyor;
A second feeder provided to continuously transport the radioactive waste conveyed from the first feeder, a microwave generator positioned to be spaced outwardly of the second feeder and provided to emit microwaves toward the radioactive waste; And a housing including a carbide outlet opening for discharging carbonized radioactive waste, and a gas outlet opening for discharging gas generated when the radioactive waste is carbonized, and inserted into an inner center of the housing and in the housing. A carbonizer including a rotating body to be rotated and support members provided at both ends of the rotating body;
A cooling chamber provided at the front and rear ends of the carbonizer;
A drive unit provided for operation of the first conveyor and the second conveyor;
A high temperature chamber in communication with the carbonizer for separating harmful substances contained in a gas generated during carbonization;
A condenser in communication with the hot chamber and having a diffusion chamber configured to liquefy a hot gas through heat exchange, and to diffuse in a predetermined space before the hot gas is liquefied; And
And a vacuum pump in communication with the condenser and suctioning the gas at a vacuum pressure. The method according to claim 1,
The carbonizer,
Radioactive waste carbonization apparatus installed on the rotating body, including a generator for generating high temperature heat by microwave. The method according to claim 1,
The cooling chamber,
A radioactive waste carbonization apparatus including a first cooling chamber surrounding the outer side of the support member and provided at a front end of the housing and supplied with low-temperature cooling water, and a second cooling chamber provided at a rear end of the housing and supplied with low-temperature cooling water. . The method according to claim 1,
The housing includes:
Radioactive waste carbonization apparatus comprising a heat insulating material provided along the inner circumferential direction. The method according to claim 1,
The radioactive waste carbonization device,
And a cooler for supplying low-temperature cooling water to the cooling chamber and the condenser. The method according to claim 1,
The cooling chamber,
A radioactive waste carbonization apparatus, characterized in that formed in the form surrounding the outer side of the support member. The method according to claim 3 or 5,
The first to second cooling chamber,
A radioactive waste carbonization apparatus, characterized in that at the same time receiving a low-temperature cooling water through the cooler. The method according to claim 1,
The condenser includes:
A plurality of gas liquefaction tubes disposed vertically along an inner longitudinal direction and into which gas is introduced;
And a condensate storage tank connected to a lower end of the condenser and storing the condensed water liquefied through the gas liquefaction pipe. The method of claim 8,
The condenser includes:
A radioactive waste carbonization apparatus further comprising a liquefied pipe flange, each of which is provided at an upper and a lower inner side thereof and into which a plurality of gas liquefied pipes are inserted. The method according to claim 1,
The condenser includes:
A drain chamber provided below the gas liquefaction tube;
And a drain pipe for draining the condensed water supplied to the drain chamber to a condensate storage tank. The method according to claim 1,
The microwave generator,
A radioactive waste carbonization apparatus, characterized in that it is disposed towards the center of the second conveyor. The method according to claim 1,
The carbonizer,
A radioactive waste carbonization apparatus further comprising a carbide compressor for compressing the carbonized radioactive waste to a minimum volume. The method according to claim 1,
And the first conveyor and the second conveyor are disposed at the same position.

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