KR101661112B1 - Drum type waste feeding apparatus of a plasma melter - Google Patents

Abstract

The present invention relates to an apparatus for introducing drum type radioactive waste, industrial waste, ceramic material, metal material, etc. into a plasma melting furnace, and more particularly, to a plasma incinerator for burning waste, A slope part 210 provided at an inclined part to guide the introduction of the waste drum 10 into a side injection port 102 provided in the slope part 210; A drum base portion 220 provided with a slide gate 221 capable of sliding opening and closing and charging the waste drum 10; A pusher 230 which is movable in the drum base unit 220 to move back and forth and pushes the waste drum 10 into the melting chamber 101; A drum insertion portion 240 connecting the drum base portion 220 and the side injection port 102 to guide the waste drum 10 into the melting furnace 100; And a closing gate 250 which can vertically open and close the drum loading portion 220 and the drum loading portion 240 by spatially separating the drum loading portion 240 and the drum loading portion 240.

Description

[0001] The present invention relates to a drum type waste feeding apparatus for a plasma melting furnace,

The present invention relates to an apparatus for introducing drum type radioactive waste, industrial waste, ceramic material, metal material, etc. into a plasma melting furnace.

Radioactive wastes are classified as high-level radioactive wastes including medium and low-level and spent fuel as radioactivity is high and low. Solid waste from middle- and low-level radioactive wastes includes work clothes, gloves, slippers, mops, and equipment replacement parts used in nuclear power plants, and from radioactive wastes generated from liquid wastes, Sludge, concentrated waste fluid, used ion exchange resin, and the like, which are generated secondarily by the treatment such as exchange, etc. In addition, there are reagent bottles, syringes, tubes and the like generated in the radiology of industrial research institutes or hospitals using radioactive isotopes have.

Since medium and low level radioactive wastes usually generate much more than other types of high-level radioactive waste, and the types are different, the treatment methods applied for each type are different.

Conventionally, there is a plasma melting furnace for treating radioactive waste using plasma. The plasma melting furnace is used to pyrolyze and melt the radioactive waste by using the high heat of the plasma and gasify it. The gasified exhaust gas is discharged through the secondary combustion, the heat recovery and the cooling process with the dust and the acid component being removed, And it is treated according to the characteristics of each of the combustible waste and the non-combustible waste, thereby preventing the generation of secondary pollutants.

This plasma melting furnace is attracting attention as a low pollution incineration facility for industrial wastes in addition to radioactive waste.

Published patent application No. 10-2012-0129852 (Published date: November 28, 2012)

Open Patent Publication No. 2001-0091649 (published date: October 23, 2001)

The present invention relates to an apparatus for introducing drum type radioactive waste, industrial waste, ceramic material, metal material, and the like into a plasma melting furnace, and more particularly, .

In order to accomplish the above object, the drum type waste input apparatus of the plasma melting furnace according to the present invention is provided with a slope so as to guide the introduction of the waste drum into a side loading port provided on the side of the melting furnace where the waste introduced by the plasma torch is melted An inclined portion to be installed; A drum base portion provided with a slide gate capable of sliding opening and closing and charging a waste drum; A pusher which is provided in the drum base portion so as to be movable back and forth and pushes the waste drum into the melting chamber; A drum insertion portion connecting the drum-base portion and the side loading port to guide the waste drum into the melting furnace; And a closing gate which can vertically open and close the drum loading portion by spatially separating the drum loading portion from the drum loading portion.

Preferably, the drum waiting section further includes an exhaust pipe capable of discharging internal exhaust gas, and more preferably, the exhaust pipe is connected to the melting furnace by a pipe.

Preferably, the inclined portion further includes a heating element, and more preferably, a cooling means disposed at a lower end of the heating element to cool high temperature heat.

The drum type waste input device of the plasma melting furnace of the present invention can be melted and put into a plasma melting furnace on the scale of a drum (200L) for melting radioactive waste and industrial wastes, thereby maintaining the integrity of the melting furnace structure and optimizing the melting efficiency have.

1 is a schematic view of a plasma furnace facility according to the present invention,
FIG. 2 is a configuration diagram of a drum type waste input apparatus of a plasma melting furnace system according to the present invention,
3 is an enlarged cross-sectional view of a portion A in Fig.

The specific structure or functional description presented in the embodiment of the present invention is merely illustrative for the purpose of illustrating an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention can be implemented in various forms. And should not be construed as limited to the embodiments described herein, but should be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Meanwhile, in the present invention, the terms first and / or second etc. may be used to describe various components, but the components are not limited to the terms. The terms may be referred to as a second element only for the purpose of distinguishing one element from another, for example, to the extent that it does not depart from the scope of the invention in accordance with the concept of the present invention, Similarly, the second component may also be referred to as the first component.

Whenever an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but it should be understood that other elements may be present in between something to do. On the other hand, when it is mentioned that an element is "directly connected" or "directly contacted" to another element, it should be understood that there are no other elements in between. Other expressions for describing the relationship between components, such as "between" and "between" or "adjacent to" and "directly adjacent to" should also be interpreted.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It will be further understood that the terms " comprises ", or "having ", and the like in the specification are intended to specify the presence of stated features, integers, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

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

1, the charging apparatus of the present invention includes an inlet 102 provided at a side upper end of a melting furnace 100 where a waste introduced by a plasma torch 110 is subjected to a melting process, An inclined portion 210 installed at an inclined position to guide the guide portion 210; A drum base portion 220 provided with a slide gate 221 capable of sliding opening and closing and charging the waste drum 10; A pusher 230 provided in the drum base portion 220 so as to be movable back and forth to push the waste drum 10 into the melting chamber 101; A drum insertion portion 240 connecting the drum base portion 220 and the side injection port 102 to guide the introduction of the waste drum 10 into the melting furnace 100; And a closing gate 250 which can vertically open and close the drum loading portion 220 and the drum loading portion 240 spatially.

The melting furnace 100 may be made of a material having excellent heat resistance such as a heat resisting brick or a material having excellent heat insulation such as a heat insulating brick or a metal material for reinforcing the structure of the melting furnace 100.

The plasma torch 110 is installed at the upper end of the melting chamber 101 of the melting furnace 100 so that the plasma torch 110 can be transported And can be provided by a dual plasma torch capable of operating in a non-transferring type. By using the joule heat and the torch frame temperature and the arc heat generated by the bottom electrode 111 provided under the melting chamber 102 through the transferring operation, Can be maximized.

A melt discharge unit 120 is provided below the melting furnace 100 and the melt can be discharged using a separate heat source (induction heating system or heating element).

The melting furnace 100 is provided with a charging port 102 through which the waste drum 10 is charged and a charging device 200 through which the waste drum 10 is charged.

Referring specifically to FIG. 2, the dosing device 200 includes an inclined portion 210 for guiding the introduction of the waste drum 10.

The inclined portion 210 is supported by a support 211 vertically installed on the ground and is installed with a predetermined inclination and the lower end of the inclined portion 210 is located at a lower end of the inlet 101 formed at the upper end of the melting furnace 100, The inclined portion 110 has a slope in the range of 10 to 30 degrees.

Therefore, the waste drum 10 can be injected into the melting chamber 101 along the inclined portion 210 having a gentle inclined surface to minimize the impact that may be applied to the melting furnace 100.

The inclined portion 210 includes a drum base portion 220 to which the waste drum 10 is loaded and waits and a drum drum base portion 220 that connects the drum base portion 220 and the side injection port 102 to the waste drum 10 The drum insertion portion 240 is provided.

The drum base portion 220 is provided with a slide gate 221 which can be opened and closed slidably and the drum base portion 220 and the drum insertion portion 240 are partitioned by a closing gate 250 which can be opened and closed up and down.

Preferably, the drum base portion 220 and the drum injection portion 240 are provided with a hermetic member having excellent heat resistance to prevent the gas generated in the melting chamber 101 from being discharged to the outside.

In particular, in order to prevent the hermetic member from being exposed to high temperature and being degraded when the hermetic member is provided in the slide gate 221 and the closing gate 250 in which the opening and closing are performed, A jacket of the present invention can be prepared.

The drum base portion 220 is provided with an exhaust pipe 222 capable of exhausting the exhaust gas and the exhaust pipe 222 is connected to the melting chamber 101 by an exhaust duct (not shown) If an abnormal exhaust gas flows into the base 220, it can be transferred back into the melting chamber 101. On the other hand, a press-feeding fan (not shown) is additionally provided on the exhaust pipe or the exhaust duct, so that the exhaust gas can be force-fed to the melting chamber 101.

In this embodiment, it is exemplified that the exhaust pipe 222 is provided in the slide gate 221.

The drum base unit 220 may be equipped with a pressure gauge to confirm the pressure state, and a pin-hole camera for observing the inside of the drum base unit 220 may be added.

The dispensing apparatus 200 may further include a crane 260 to transfer the waste drum 10 to the drum-

The waste drum 10 is moved from the waiting chamber 230 to the input chamber 220 and the pusher 230 pushes the waste drum 10 located in the waiting chamber 230 to the melting chamber 100 ).

As illustrated in FIG. 3, the inclined portion 210 may be provided with a heating element 212 in a part or all of a section in which the waste drum 10 is moved. The heating member 212 is not particularly limited as long as it can heat the inclined portion 210, and the inclined portion 210 may be used for ceramics having excellent heat resistance against high temperatures.

The heating body 212 melts the solidified body 20 hardened on the surface of the inclined portion 210, so that the waste drum 10 can be smoothly introduced.

Meanwhile, during the process of melting the waste while the waste drum 10 is being charged, part of the molten material may remain on the surface of the inclined portion 210 and remain as the solidified body 20, (20) acts as a large frictional resistance at the time of putting the waste drum (10) so that smooth insertion of the waste drum (10) can be prevented.

Preferably, the inclined portion 210 further includes a heating element 212 provided therein and a cooling means provided at a lower end of the heating element 212 to prevent heat of high temperature from being emitted to the outside.

In this embodiment, the cooling means is a cooling tube 213 disposed at the lower end of the heating element 212 to allow the cooling water to flow, but the present invention is not limited thereto. The cooling tube 213 is provided with a circulation pump (not shown) for circulating and supplying the cooling water. The heat is exchanged by the cooling water circulated along the cooling tube 213, It is possible to prevent the high temperature body 212 from being discharged to the outside (lower portion) of the inclined portion 210 unnecessarily.

The waste drum 10 is placed on the drum base portion 220 by the crane 260 in a state where the slide gate 221 is opened and then the slide gate 221 is moved The waste drum 10 of the drum base portion 220 can be put into the melting chamber 101 by operating the pusher 230 after the closing gate 250 is opened in the closed state.

Therefore, in the present invention, the waste drum 10 can be charged into the melting chamber 101 as it is in a circular shape. Further, by the opening and closing operations of the slide gate 221 and the closing gate 250, It is possible to prevent the inflow of air and to prevent the gas generated in the melting chamber 101 from being discharged to the outside.

Therefore, in the present invention, the waste drum transferred from the reservoir can be put into the melting furnace in a circular shape, and subjected to melting treatment for final disposal.

Meanwhile, the medium and low level wastes generated from nuclear power plants are stored in a closed 200L drum container, and the waste stored in the drum is collected and stored in various forms such as combustible and inorganic wastes. Therefore, the radioactive waste stored in the 200L drum is subject to secondary contamination, making it difficult to separate and treat separately. Therefore, a series of stabilization treatments such as inputting, crushing, burning, and melting of wastes are continuously performed in a single melting furnace very important.

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 or scope of the inventions. It will be apparent to those of ordinary skill in the art.

100: Melting furnace 110: Plasma torch
200: input device 210: inclined portion
212: heating element 220: drum base
221: slide gate 230: pusher
240: Drum insertion part 250: Input gate
260: Crane

Claims (5)

An inclined portion provided at an inclined portion to guide the introduction of the waste drum into a side loading port provided on a side of the melting furnace where the waste introduced by the plasma torch is melted;
A drum base portion provided with a slide gate capable of sliding opening and closing and charging a waste drum;
A pusher which is provided in the drum base portion so as to be movable back and forth and pushes the waste drum into the melting chamber;
A drum insertion portion connecting the drum-base portion and the side loading port to guide the waste drum into the melting furnace;
And a closing gate which can vertically open and separate the drum loading portion and the drum loading portion spatially from each other, and a drum type waste loading device for the drum type waste loading device. The drum type waste input apparatus of claim 1, wherein the drum waiting section further comprises an exhaust pipe capable of discharging internal exhaust gas. [3] The apparatus of claim 2, wherein the exhaust pipe is connected to a melting furnace by a pipe. delete The apparatus as claimed in claim 1, wherein the inclined portion further comprises a cooling means disposed at a lower end of the heating element to cool high temperature heat.

Images