KR100976770B1 - Apparatus for treating burnable radioactive wastes using microwave - Google Patents

Abstract

The present invention relates to a flammable radioactive waste treatment apparatus using microwaves that can reduce the volume of radioactive waste such as clothes, gloves and shoes discarded after use in a nuclear raw material facility, and more specifically, the waste is fired at a high temperature. Treated and burned to form ash with reduced volume and collected to increase treatment efficiency, but the gases generated during the combustion process are collected separately and filtered together with pyrolysis on various harmful substances contained in the gas and released into the atmosphere. The present invention relates to a flammable radioactive waste treatment apparatus using microwaves, which can reduce the environmental pollution problem and further improve the work efficiency by performing this process continuously. The combustible radioactive waste treatment apparatus using the microwave of the present invention is the combustion of the collected radioactive waste at high temperature in a continuous kiln and burned to form a reduced-volume ash form to increase the treatment efficiency of the gas generated in the combustion process Collects and removes various harmful substances contained in this gas at high temperature in the pyrolysis unit, removes them, condenses them once again, filters them in the filter element, and releases them into the atmosphere. Processing can be carried out continuously, improving work efficiency.

Description

Apparatus for treating burnable radioactive wastes using microwave}

The present invention relates to a flammable radioactive waste treatment apparatus using microwaves that can reduce the volume of radioactive waste such as clothes, gloves and shoes discarded after use in a nuclear raw material facility, and more specifically, the waste is fired at a high temperature. Treated and burned to form ash with reduced volume and collected to increase treatment efficiency, but the gases generated during the combustion process are collected separately and filtered together with pyrolysis on various harmful substances contained in the gas and released into the atmosphere. The present invention relates to a flammable radioactive waste treatment apparatus using microwaves, which can reduce the environmental pollution problem and further improve the work efficiency by performing this process continuously.

In general, radioactive waste such as clothes, gloves and shoes that are disposed of after being used in nuclear raw material facilities is not incinerated, unlike ordinary waste due to its pollution, and is enclosed in a waste storage container and then disposed of in a specific area. Of course, in order to reduce waste, the maximum compression is to be stored in a storage container, but this waste has a large volume and thus there is a limit in the way of compressing.

For this reason, in recent years, a wider area is required because of the limited landfill area, but there is a limit to newly selecting a landfill site due to serious pollution caused by landfill.

Also, in recent years, attention has been focused on preventing environmental pollution by reducing the amount of waste generated by more efficiently treating waste generated by the export of nuclear power plants, and the development of such treatment facilities is urgently required.

The present invention has been made in order to solve the above problems, it is possible to reduce the environmental pollution problem by increasing the treatment efficiency by collecting the waste in the form of reduced volume, it is possible to continuously perform such treatment process work efficiency To provide a flammable radioactive waste treatment apparatus using a microwave to improve the.

In order to achieve the above object, the present invention is a continuous firing furnace for receiving and transporting the collected radioactive waste and at the same time burning the high temperature by microwave to make the waste in the form of ash; Cooling transfer path for transporting while cooling the waste made in the form of ash in the continuous kiln to store in the waste storage bin; And a pyrolysis filter device which collects the gas generated in the combustion process of the continuous kiln and thermally decomposes it at a high temperature by microwaves to burn and remove various foreign substances as well as harmful substances contained in the gas and then discharge them. Combustible radioactive waste treatment apparatus using a microwave.

Preferably characterized in that it further comprises a crusher for crushing and supplying the waste so that the waste is fed to the continuous kiln is fired quickly.

Preferably, the combustible radioactive waste treatment apparatus using the microwave, the condensate discharged by receiving the high-temperature gas discharged from the pyrolysis filter device is discharged, the condensate generated in the condensation process is supplied to the cooling transfer path; A filter member for filtering harmful substances contained in the gas discharged from the gas condenser; And a discharge pump which sucks the gas filtered by the filter member and discharges it to the atmosphere.

Preferably, the continuous kiln is provided with an inlet for injecting waste on one side of the upper surface, a discharge hole on the other side of the bottom surface, a discharge pipe is formed on one side wall, and a plurality of injecting microwaves for firing the waste injected into the upper surface. A housing in which the magnetron is installed; And it is installed in the longitudinal direction inside the housing characterized in that it comprises a transfer blade for rotating by the drive motor for transferring the waste injected into the inlet of the housing toward the outlet.

Preferably the transfer blade portion is a spiral-shaped transfer blade located in the housing; A rotating body attached to both ends of the transfer blades to rotate the transfer blades with the driving force of the driving motor while being supported by the sidewalls of the housing, the rotors penetrating therein; A washing tube inserted into the penetrating interior of the rotating body and positioned inside the housing so as not to interfere with the rotation of the rotating body, the washing tube being intermittently formed with a discharge hole at a lower surface thereof; And a supply pump connected to the washing tube to supply the washing water when the washing inside the housing is required and to be discharged to the discharge hole of the transfer tube.

Preferably, the pyrolysis filter device is composed of a detachable upper / lower case and a space portion is formed therein when combined, and the upper case is provided with a first discharge path for discharging filtered gas, and the upper portion of the lower case is continuous. A casing having a plurality of magnetrons for injecting microwaves into the outer periphery of the second discharge path having an intermittent valve formed at the same time as the inflow path for collecting the gas generated in the kiln is formed; A partition plate placed in a coupling portion of the upper / lower case and partitioning the space portion, the coupling plate having a plurality of coupling holes; And a filter rod mounted on the partition plate and positioned in the lower case to be heated in response to the microwave to burn gas introduced through the inflow path to remove harmful substances such as foreign substances. It is done.

Preferably, the lower side of the partition plate surrounds the outer periphery of the mounted filter rod to prevent the heat loss that may be generated while the gas flowing into the inflow path is directly in contact with the filter rod and at the same time induces a vortex phenomenon of the incoming gas to self-weight The foreign matter is characterized in that the protective plate is further provided to allow the natural case to fall to the lower side of the lower case.

In addition, as another embodiment of the present invention, the combustible radioactive waste treatment apparatus using the microwave, the high-temperature gas discharged from the pyrolysis filter device is supplied by condensation and discharged while the condensate generated in the condensation process is a drain pipe A gas condenser for storing through a separate condensate reservoir; A filter member for filtering harmful substances contained in the gas discharged from the gas condenser; And a discharge pump which sucks the gas filtered by the filter member and discharges it to the atmosphere.

According to the present invention, the collected radioactive waste is calcined and burned at a high temperature in a continuous kiln to form ash with a reduced volume to collect and increase the treatment efficiency, but the gas generated in the combustion process is separately collected and contained in the gas. It is possible to reduce the environmental pollution problem by filtering and removing various harmful substances by high temperature in the pyrolysis device, condensing once again, filtering in the filter element, and releasing it into the atmosphere. Furthermore, this waste treatment process can be continuously performed. It has the effect of improving work efficiency.

1 is a block diagram showing the configuration of a combustible radioactive waste treatment apparatus using a microwave according to an embodiment of the present invention.
"A" of Figure 2 is a schematic cross-sectional view showing a continuous firing furnace according to an embodiment of the present invention, "b" is a cross-sectional view showing the transfer wing.
Figure 3 is a schematic cross-sectional view showing a cooling transfer path according to an embodiment of the present invention.
Figure 4 is a perspective view of a pyrolysis filter device according to an embodiment of the present invention.
Figure 5 is an exploded perspective view of the pyrolysis filter device according to an embodiment of the present invention.
Figure 6 is a schematic longitudinal cross-sectional view showing the operating relationship of the pyrolysis filter device according to an embodiment of the present invention.
Figure 7 is a schematic process diagram showing the operation of the combustible radioactive waste treatment apparatus using a microwave according to an embodiment of the present invention.
Figure 8 is a block diagram showing the configuration of a flammable radioactive waste treatment apparatus using a microwave according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in more detail a flammable radioactive waste treatment apparatus using a microwave of the present invention.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of terms in order to describe their invention in the best way. It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

1 is a block diagram showing the configuration of a combustible radioactive waste treatment apparatus using a microwave according to an embodiment of the present invention.

Referring to the drawings, the waste reduction system 100 of the present invention includes a continuous firing furnace 200, a cooling feed path 300, and a pyrolysis filter device 400, and a shredder 500 and a gas condenser. 600, the filter member 700 and the discharge pump 800 further includes.

First, the continuous kiln 200 receives the collected radioactive waste and transports it to the next process and at the same time burns it to a high temperature by microwaves and discharges the waste into ashes, and an inlet 212 into which waste is input. And a housing 210 having a magnetron 218 for scanning microwaves and a discharge pipe 214 for discharging the gas generated in the firing process and a discharge port 214 for discharging waste made in a ash form. Although shown as a broken line, it is installed in the longitudinal direction inside the housing 210 includes a transfer blade 220 for transferring the waste introduced into the inlet 212 toward the outlet 214 while being rotated by the driving force of the drive motor (M). The detailed configuration thereof will be described later.

At this time, the waste is burned quickly in the kiln 200 and at the same time, it is preferable to have the shredder 500 and to be supplied after being crushed by the feed before the smooth operation, the shredder and the kiln of the Although the inlet is not shown, it may be connected so as not to be exposed to the outside through a pipeline.

Next, the cooling transfer path 300 is a waste made in the form of ash in the continuous kiln 200 is supplied through the discharge port 214 and cooled while being transported and stored in the waste storage container 340, the configuration thereof It will be described below.

On the other hand, although the inlet 312 of the cooling transfer path 300 and the outlet 214 of the continuous firing furnace 200 is not shown, the outlet 214 of the continuous firing furnace 200 by connecting so as not to be exposed to the outside through the conduit. It is good practice to ensure that the wastes from) are not scattered to the outside.

Finally, the pyrolysis filter device 400 is connected through the discharge pipe 216 and the first transfer pipe 900 of the continuous kiln 200 via the inlet 415 provided on one side of the casing 410 A device for capturing a gas generated in the combustion process and thermally decomposing to a high temperature by microwaves to burn off various foreign substances contained in the gas as well as harmful substances and to discharge them to the first discharge passage 413. Let's look again.

On the other hand, it is possible to directly discharge the filtered gas from the pyrolysis filter device 400 to the atmosphere, but it is more completely harmful to discharge through the gas condenser 600, the filter member 700 and the discharge pump 800 Can be removed.

That is, the gas condenser 600 is connected through the first discharge path 413 and the second transfer pipe 910 of the pyrolysis filter device 400, and the filter member 700 is connected to the third transfer pipe ( 920 is connected to the gas condenser 600 again, the discharge pump 800 is connected again to the filter member 700 through the fourth transfer pipe 930, the gas filtered by the pyrolysis filter device 400 is After being supplied to the gas condenser 600 and condensed, the filter is filtered through the filter member 700 and then forced to be discharged to the atmosphere through the discharge pump 800.

Here, since the gas condenser 600, the filter member 700 and the discharge pump 800 are widely used, a separate description thereof will be omitted, and the filter member 700 uses a hepa filter having excellent dust collection capability. It is preferable.

At this time, the gas condenser 600 is connected through the second recovery pipe 950 to transfer and store the condensate generated in the condensation process to the cooling transport path 300, the pyrolysis filter device 400 is also discharged second It is preferable that the foreign matter such as dust removed by being connected to the cooling transfer path 300 through the first recovery pipe 940 connected to the furnace 416 may be stored in the waste storage container 340.

In addition, the injection pipe 440 provided on the casing 410 upper side of the pyrolysis filter device 400 is provided with an air compressor 450 connected through an air pipe 452, which is a pyrolysis filter device 400. ) To clean the inside by supplying air to the inside, which will be described later.

In addition, the first to the second transfer pipe (900,910), the second recovery pipe 950 and the air pipe 452 is provided with a valve (S) for regulating the flow of fluid or gas, respectively, which is a known solenoid The same reference numerals are used as the valve, and detailed description thereof will be omitted.

Now, the main configuration of the system of the present invention configured as described above will be described in more detail.

"A" of Figure 2 is a schematic cross-sectional view showing a continuous firing furnace according to an embodiment of the present invention, "b" is a cross-sectional view showing the transfer wing.

Referring to FIG. 2, the continuous firing furnace 200 of the present invention includes a housing 210 and a transfer wing unit 220 largely as described above.

The housing 210 is provided with an inlet 212 into which waste is injected into one side of the upper surface, an outlet 214 is provided on the other side of the lower surface thereof, and a discharge pipe 216 for discharging gas is formed on one side wall, and an inner side of the housing 210. A plurality of magnetrons 218 are installed for injecting microwaves to be fired and burned at high temperature to form ashes. In addition, a pressure reducer 219 is installed at one side of the magnetron 218 to convert the inside of the housing 210 into a vacuum state when necessary. In order to convert the inside of the housing 210 into a vacuum state, the inlets 212 and the outlets 214 are further provided with covers 213 and 215, respectively.

Next, the transfer wing 220 is installed in the longitudinal direction inside the housing 210 is rotated by the drive motor (M) while the waste injected into the inlet 212 of the housing 210 discharge port 214 Towards the transfer, the transfer blade 220 is attached to both ends of the helical transfer blade 222 and the transfer blade 222 to transfer the waste placed in the housing 210 and the Rotating the transfer blade 222 with the driving force of the drive motor (M) while being supported on the side wall of the housing 210, the inside of the rotating body 224, as shown in the "I" and the rotating body Is inserted into the penetrated interior of the 224 is located inside the housing 210, but is installed via the bearing (B) so as not to interfere with the rotation of the rotor 224, as shown in the "B" on the bottom Three in which the discharge hole 227 is formed intermittently A supply pump connected to the pipe 226 and the cleaning pipe 226 via a pipe to supply the washing water when the inside of the housing 210 is required to be discharged to the discharge hole 227 of the cleaning pipe 226 ( 228).

At this time, the transfer blade 222 for transporting the supplied waste is attached to both ends attached to the rotating body 224 respectively supported on both side walls of the housing 210, one side of the rotating body 224 and the drive motor (M) Since it is connected and rotated, the waste pipe is rotated separately from the washing pipe 226 mounted inside the rotating body 224 to transfer the input waste.

Here, the rotor 224 positioned on the other side of the rotor 224 supported on both sidewalls of the housing 210, on which the washing tube 226 is inserted, does not penetrate as shown in some enlarged views. It is also possible to form a mounting groove 225 therein so that the cleaning pipe 226 can be mounted via the bearing (B).

On the other hand, the inside of the housing 210 is provided with a heat insulating cover member 230 for wrapping the conveying blade 222 in the longitudinal direction, which is to maintain a high temperature without easily rising temperature from the microwave The microwave is preferably made of aluminum oxide, that is, alumina, which is excellent in heat resistance and easily melts even at high temperatures.

The continuous firing furnace 200 configured as described above, when the rotating body 224 and the transfer blade 222 are rotated by the operation of the driving motor M, the waste introduced into the inlet 212 of the housing 210 toward the outlet 214. Naturally, when the microwave is injected from the magnetron 218 into the housing 210, the waste is transported to a high temperature, thereby burning the transported waste, and the temperature raised by the insulation cover member 230 is easily lost. Will not be. In addition, when the inside of the housing 210 is contaminated and the cleaning is necessary, when the supply pump 228 is operated to supply the washing water to the washing pipe 226, the washing water will be discharged to the discharge hole 227. If you rotate the washing water is rotated to clean the inside of the housing.

3 is a schematic cross-sectional view showing a cooling transfer path according to an embodiment of the present invention.

Referring to the drawings, the cooling conveying path 300 of the present invention is discharged while maintaining the room temperature because the ash discharged from the continuous firing furnace 200 is formed at a high temperature, so by cooling it through a heat exchange action here is not shown waste By storing in the reservoir 340, the inlet 312 and the discharge port 314 is formed on the other side and the housing 310 is located in the housing 310 by the drive motor (M ') It includes a transfer blade 320 for transporting the supplied ash while rotating operation and the cooling means 330 to maintain the inside of the housing 310 at a low temperature.

The cooling means 330 is a cylindrical refrigerant plate 332 formed in a shape surrounding the transport wing 320 in the housing 310, and a circulation pipe 334 winding the refrigerant plate 332, And a cooler 336 installed in the circulation pipe 334 to cool the heat-exchanged refrigerant again, and a circulation pump 338 for circulating the refrigerant.

Figure 4 is a perspective view of a pyrolysis filter apparatus according to a preferred embodiment of the present invention, Figure 5 is an exploded perspective view of a pyrolysis filter apparatus according to a preferred embodiment of the present invention, Figure 6 is a preferred embodiment of the present invention A schematic longitudinal cross-sectional view showing the operating relationship of the pyrolysis filter device according to the present invention.

First, referring to FIGS. 4 and 5, the pyrolysis filter device 400 of the present invention includes a casing 410, a partition plate 420, and a filter rod 430.

The casing 410 is composed of a detachable upper / lower case 412 and 414 to form a space portion D when combined, and the upper case 412 has a first discharge passage 413 for discharging the filtered gas. Is formed, the upper case of the lower case 414, but the gas generated in the continuous kiln 200 is not shown here, but the inlet path 415 is formed to collect through the first transfer pipe 900 and at the same time the lower side valve 417 is provided, but a second discharge path 416 is formed here, which is connected to the first recovery pipe 940, which is not shown, and a plurality of magnetrons 418 are installed at the outer periphery to scan the microwaves into the outer periphery. do.

In addition, an inner upper part of the lower case 414 is further provided with a settling jaw 419 for placing the partition plate 420 to be described later.

Next, the partition plate 420 is in the form of a plate is placed on the engaging portion of the upper / lower cases (412,414), that is, the mounting jaw (419) formed in the lower case 414 to the space portion (D) The partitions are formed in the center and the edge portion a plurality of coupling holes 422.

Next, the filter rod 430 is to be mounted to the coupling hole 422 formed in the partition plate 420, the coupling portion 432 mounted to the coupling hole 422 is formed on the upper side to be detachable. Combined and positioned in the lower case 414 and heated in response to the microwave to burn the gas flowing through the inlet 415 to remove harmful substances such as foreign matter, the entire surface is formed with extremely fine micropores The gas passing through the micropores is open to the top to be discharged upward. The filter rod 430 is preferably formed of a ceramic material to generate heat in response to the microwave.

On the other hand, the lower side of the partition plate 420 is wrapped around the outer periphery of the plurality of filter rods 430 mounted to the heat loss that can be generated while the gas flowing into the inlet path 415 directly contacting the filter rod 430 At the same time, it is preferable that a protective plate 424 is additionally provided to induce vortex phenomena of inflowing gas so that foreign matters having their own weight naturally fall below the lower case 414. At this time, the protection plate 424 is also to maintain the high temperature without being easily lost temperature raised from the microwave, like the above-mentioned heat insulating cover member 230, the microwave is excellent in heat resistance while passing, easily at high temperature It is preferable to be made of insoluble aluminum oxide, namely alumina material.

And, it can be seen that the injection pipe 440 is inserted into one side of the upper case 412, which is inserted into the open upper portion of the filter rod 430 provided in the casing 410 is described in Figure 1 As it is connected to the air compressor 450 is to shed various foreign matter or dust attached to the casing 410, in particular, the filter rod 430, which will be described again in the following operating relationship.

The pyrolysis filter device configured as described above is combined and operated as shown in FIG. 6.

That is, the partition plate 420 is located at the portion where the upper and lower cases 412 and 414 are coupled to partition the space portion D of the casing 410. That is, the gas flows into the inflow path 415 formed in the lower case 414 so as not to be directly discharged to the first discharge path 413 formed in the upper case 412. In addition, the filter rod 430 coupled to the partition plate 420 is located inside the lower case 414, and the second discharge passage 416 formed under the lower case 414 is connected to the control valve 417. It is blocked by, and the outer periphery is provided with many magnetrons 418 for injecting a microwave inside.

In addition, the injection pipe 440 inserted from one side of the upper case 412 is distributed by the number of filter rods 430 through the distributor 442 in the upper case 412 and inserted into each filter rod 430. The protective plate 424 attached to the lower side of the partition plate 420 surrounds the outer periphery of the filter rod 430 while being taken in an open form downward.

In this coupled state, when the microwave is injected from the magnetron 418 provided in the lower case 414, the inflow path 415 is opened when the internal temperature, in particular the temperature of the filter rod 430, rises to a set temperature. When the gas is introduced through the gas is introduced into the casing 410, since the protective plate 424 is wrapped around the filter rod 430, the gas is induced by the protective plate 424, the downward vortex phenomenon is induced, in the process Among the harmful substances contained in the gas, a substance having a self weight is collected under the lower case 414.

In addition, the gases rising toward the first discharge path 413 formed in the upper case 412 rise and discharge while passing through the high temperature filter rod 430 provided in the protection plate 424. Various harmful substances contained in the incineration, that is, the pollutants dioxin, dust, sulfur oxides, nitrogen oxides and carbon monoxide, etc., which are incinerated, are burned or filtered by the filter rod 430, and only gas close to pure water is used to filter the filter rod 430. Pass through it is to be discharged through the first discharge path 413 formed in the upper case (412).

At this time, the filter rod 430 is preferably set to increase the temperature to about 1000 ℃ ~ 1600 ℃, at this temperature, a typical carcinogen dioxin is burned does not occur.

On the other hand, if the filter action as described above for a long time, the filter rod 430 is naturally attached to various foreign matters or dust, various foreign matters will be accumulated in the lower case 414. At this time, the foreign matter accumulated in the lower case 414 may be discharged to the outside by opening the intermittent valve 417 provided in the second discharge path 416, but the various foreign matter or dust attached to the filter rod 430 It won't be easily detached.

At this time, when the air is supplied to the injection pipe 440 inserted into the inside through the upper case 412, the air is discharged to the reverse through the filter rod 430, and the various foreign substances attached to the surface are detached to discharge the second. Discharge to furnace 416. If, in this operation, foreign matter attached to the filter rod 430 is not easily detached, the upper case 412 is removed and the partition plate 420 is taken out to clean the filter rod 430 coupled thereto or to a new one. Replacing it will make maintenance easier.

In the above, the configuration and working relationship of the main components of the present invention have been described, and in the following, the overall operating relationship of the system of the present invention will be described.

Figure 7 is a schematic process diagram showing the operation of the combustible radioactive waste treatment apparatus using a microwave according to an embodiment of the present invention.

Referring to the drawings, first, the magnetron 218 provided in the housing 210 of the continuous firing furnace 200 is operated to scan microwaves so that the temperature inside the housing 210 is preferably about 1000 ° C to 1300 ° C. Is set to about 1200 ℃, the magnetron 218 provided in the casing 410 of the pyrolysis filter device 400 also operates to scan the microwave to filter the filter rod provided inside the casing 410 1000 ℃ ~ 1600 ℃ Preferably set to about 1400 ° C, the cooler 336 and the circulation pump 338, which is the cooling means 330 of the cooling transfer path 300 to operate the circulation pipe 334 to circulate the refrigerant. . Then, the valve (S) and the pyrolysis filter device 400 provided in the first transfer pipe (900) connecting the discharge pipe (216) of the continuous kiln 200 and the inlet passage (415) of the pyrolysis filter device (400). ) And the valve (S) provided in the second transfer pipe 910 connecting the gas condenser 600 to the open state, the intermittent provided in the second discharge passage 416 of the pyrolysis filter device 400. The valve S provided in the second recovery pipe 950 connecting the valve 417, the gas condenser 600, and the cooling feed path 300, and the injection pipe 440 of the pyrolysis filter device 400. The valve S provided in the air pipe 452 connecting the air compressor 450 to maintain the closed state.

In this state, radioactive waste (W) such as various clothes, gloves, and shoes discarded after use in a nuclear raw material facility is collected and crushed in the crusher 500, and then supplied to the inlet of the continuous transfer path 200. . At the same time as the feed is rotated by the transfer blade 222 to transfer the waste (W) toward the outlet (214). During the transfer process, the waste (W) is burned and burned by the high temperature inside the housing 210 to be formed as a ash in a solid state, and is discharged through the discharge port 214 to the inlet 312 of the cooling transfer path 300. Supplied.

Subsequently, when the waste W made of ash is supplied to the cooling transport path 300, the transport blade 320 of the cooling transport path 300 is rotated to be transferred to the discharge port 314 and stored in the waste storage container 340. Be sure to At this time, the ash made at a high temperature is stored in a state in which the heat exchange action is caused by the refrigerant in the process of being transferred through the cooling transfer path 300 is lowered to an appropriate temperature. On the other hand, it is also contemplated to configure the hot water can be used as a medium of the refrigerant heat exchange occurs in the cooling transfer path (300).

In addition, when the inside of the housing 210 of the continuous kiln 200 is severely polluted, the transfer blade 222 while supplying the washing water from the supply pump 228 connected to the cleaning pipe 226 of the transfer blade 220. Rotating it can increase the efficiency of maintenance because it can be easily cleaned for the inside of the housing (210).

As a result, in the system of the present invention, the volume of the waste W can be greatly reduced by burning the radioactive waste W to form ash and storing the ash in the waste storage container 340. It will be able to landfill.

Here, in the continuous kiln 200, the gas is generated in the combustion process of the waste (W), the gas is discharged through the discharge pipe 216 provided on one side wall is pyrolyzed along the first transfer pipe (900) The inlet path 415 of the filter device 400 is collected. Since the gas collected into the inlet 415 is contained in the pyrolysis filter device 400 after being introduced into the pyrolysis filter device 400, it is obvious that the gas contained in the combustion process contains many harmful substances such as dioxins, dust, sulfur oxides, nitrogen oxides, and carbon monoxide. Although not shown, they are burned or filtered by the high temperature filter rods 430 provided therein, and only pure water is passed through the filter rods 430 by the operation as shown in FIG. It is discharged through the 413 is supplied to the gas condenser 600 along the second transfer pipe (910).

Of course, since most of the harmful substances contained in the gas are discharged in a state of being removed due to the thermal decomposition of the pyrolysis filter device 400, the gas condenser 600 may be directly discharged to the atmosphere, to more completely remove the harmful substances. After condensation into the filter and filtered again through the filter member 700 is preferably discharged through the discharge pump (800).

On the other hand, the condensed water generated in the condensation process of the gas condenser 600 will be supplied to the cooling kiln 300 through the second recovery pipe 950 will be stored in the waste storage container 340, of the pyrolysis filter device 400 Various foreign matters generated during filtering and accumulated in the inside are supplied to the cooling feed path 300 through the first recovery pipe 940 when the intermittent valve 417 is opened and stored in the waste storage container 340.

In addition, when the filter rod 430 provided inside the pyrolysis filter device 400 attaches a lot of foreign matter or dust and is not properly filtered, the valves S provided in the first and second transfer pipes 900 and 910 may be removed. When the air is generated and supplied from the air compressor 450 after closing and opening the valve S provided at the lower side of the control valve 417 and the air pipe 452, the air is supplied along the injection pipe 440. As the air flows back through the filter rod 430, the foreign substances attached to the surface are detached to be discharged through the first recovery pipe 940 so that easy maintenance can be performed. Furthermore, since the filter rod 430 is configured to be detachable as shown in FIG. 6, the filter rod 430 may be replaced to further increase the efficiency of maintenance.

Therefore, the system 100 of the present invention is fired by firing the collected radioactive waste (W) at a high temperature in the continuous kiln 200 to form a ash-reduced volume form to collect and increase the treatment efficiency in the combustion process The generated gas is collected separately and filtered to remove various harmful substances contained in the gas at high temperature in the pyrolysis filter device 400, and once again condensed, filtered from the filter member 700, and released into the atmosphere. Pollution problems can be reduced, and furthermore, this waste disposal process can be carried out continuously, improving work efficiency.

8 shows another embodiment of the present invention, instead of draining the condensed water generated in the condensation process of the gas condenser 600 to the waste storage container 340 through the cooling kiln 300 as described above, the gas condenser 600 ) To install a separate drain pipe 610 and to provide a separate condensate reservoir 650 for storing condensate at the bottom of the drain pipe 610 may be able to collect and store only the condensate separately.

Reference numeral 611 denotes an on / off valve for opening and closing the drain pipe 610.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. Additional features and advantages that constitute the claims of the present invention will be described in detail below. It should be appreciated by those skilled in the art that the disclosed concepts and specific embodiments of the invention can be used immediately as a basis for designing or modifying other structures to accomplish the invention and similar purposes.

In addition, such modifications or altered equivalent structures by those skilled in the art as a basis for modifying or designing the structures and embodiments of the invention disclosed in the present invention to other structures for carrying out the same purposes of the present invention are patents Various changes, substitutions and changes may be made without departing from the spirit or scope of the invention as set forth in the claims.

100: flammable radioactive waste treatment apparatus using microwave
200: continuous kiln
210: housing 212: inlet
213: cover 214: outlet
215: cover 216: discharge pipe
218: magnetron 219: pressure reducer
220: feed wing 222: feed wing
224: rotating body 225: mounting groove
226: cleaning tube 227: discharge hole
228: supply pump M, M ': drive motor
B: bearing 300: cooling feed path
310: housing 312: inlet
314: outlet 320: transfer wing
330: cooling means 332: cooling plate
334: circulation tube 336: cooler
338: circulation pump 340: waste storage container
400: pyrolysis filter device 410: casing
412: upper case 413: first discharge passage
414: lower case 415: inflow path
416: second discharge path 417: intermittent valve
418: Magnetron 419: Settlement
420: partition plate 422: coupling hole
424: protective plate 430: filter rod
432: coupling portion 440: injection pipe
450: air compressor 452: air pipe
500: shredder 600: gas condenser
610: drain pipe 611: on-off valve
650 condensate reservoir
700: filter member 800: discharge pump
900: first transport pipe 910: second transport pipe
920: 3rd transfer tube 930: 4th transfer tube
940: First Collection Hall 950: Second Collection Hall
S: Valve

Claims (8)

A continuous kiln which receives and transports the collected radioactive waste and at the same time burns it at a high temperature by microwaves to make the waste into ashes;
Cooling transfer path for transporting while cooling the waste made in the form of ash in the continuous kiln to store in the waste storage bin; And
A pyrolysis filter device which collects the gas generated in the combustion process of the continuous kiln and thermally decomposes it at a high temperature by microwaves to burn and remove various foreign substances as well as harmful substances contained in the gas and then discharge them;
A gas condenser that receives the high temperature gas discharged from the pyrolysis filter device and condenses it to be discharged, but supplies the condensed water generated in the condensation process to a cooling transfer path;
A filter member for filtering harmful substances contained in the gas discharged from the gas condenser; And
A discharge pump for sucking the gas filtered by the filter member and discharging the gas into the atmosphere;
Combustible radioactive waste treatment apparatus using a microwave, characterized in that comprises a. The method of claim 1,
Combustible radioactive waste treatment apparatus using a microwave, characterized in that it further comprises a crusher for crushing and supplying the waste so that the waste is fed to the continuous firing furnace can be burned quickly. delete The method of claim 1,
The continuous kiln
A housing on which one side of the upper surface is provided with an inlet for injecting waste, a lower side of the other side is provided with a discharge port, and one side wall has a discharge tube formed thereon, and the upper surface has a plurality of magnetrons for scanning microwaves for firing the internally injected waste; And
Combustible radioactive waste treatment apparatus using a microwave, characterized in that it is installed in the longitudinal direction inside the housing including a transfer blade for rotating the waste injected into the inlet of the housing toward the outlet while being rotated by a drive motor. The method of claim 4, wherein
The feed wing portion
A spiral feed vane positioned within the housing;
A rotating body attached to both ends of the transfer blades to rotate the transfer blades with the driving force of the driving motor while being supported by the sidewalls of the housing, the rotors penetrating therein;
A washing tube inserted into the penetrating interior of the rotating body and positioned inside the housing so as not to interfere with the rotation of the rotating body, the washing tube being intermittently formed with a discharge hole at a lower surface thereof; And
A supply pump connected to the cleaning pipe to supply the washing water when the inside of the housing is required to be washed and discharged to the discharge hole of the transfer pipe;
Combustible radioactive waste treatment apparatus using a microwave, characterized in that comprises a. The method of claim 1,
The pyrolysis filter device
Composed of a detachable upper / lower case, a space portion is formed inside the upper part, and a first discharge path for discharging the filtered gas is formed in the upper case, and the gas generated in the continuous kiln is collected at the upper part of the lower case. A casing having a plurality of magnetrons for scanning microwaves therein;
A partition plate placed in a coupling portion of the upper / lower case and partitioning the space portion, the coupling plate having a plurality of coupling holes; And
A filter rod mounted on the partition plate and positioned in the lower case and heated in response to the microwave to burn gas introduced through the inflow path to remove harmful substances such as foreign substances;
Combustible radioactive waste treatment apparatus using a microwave, characterized in that comprises a. The method of claim 6,
The lower part of the partition plate surrounds the outer periphery of the mounted filter rod to prevent heat loss that may be generated when the gas flowing into the inflow path is directly in contact with the filter rod, and at the same time, induces a vortex phenomenon of the introduced gas, thereby causing foreign substances having self-weight. Combustible radioactive waste treatment apparatus using a microwave, characterized in that the protective plate is further provided to allow the natural fall to the lower case lower side. The method of claim 1,
In the combustible radioactive waste treatment apparatus using the microwave,
A gas condenser that receives the high temperature gas discharged from the pyrolysis filter device and condenses and discharges the condensate generated in the condensation process into a separate condensate storage tank through a drain pipe;
A filter member for filtering harmful substances contained in the gas discharged from the gas condenser; And
A discharge pump for sucking the gas filtered by the filter member and discharging the gas into the atmosphere;
Combustible radioactive waste treatment apparatus using a microwave, characterized in that further comprises a.

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