Remote restart system for vitrification equipment and its operation method

The remote restart system for vitrification equipment addresses the challenge of restarting a low-temperature melting furnace post-power outage by using a handling unit to safely arrange glass frit around the titanium ring, ensuring efficient ignition and worker safety.

JP7807552B2Active Publication Date: 2026-01-27KOREA HYDRO & NUCLEAR POWER CO LTD
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Patent Information

Application Number
JP2024537083
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-01-04
Filing Date
2023-01-02
Publication Date
2026-01-27
Estimated Expiration
2043-01-02

AI Technical Summary

Technical Problem

Restarting a low-temperature melting furnace in a vitrification facility after a power outage or similar event is challenging, particularly due to the need for precise placement of titanium rings and glass frit, which exposes workers to radiation risks.

Method used

A remote restart system using a bar-shaped handling unit with a guide module and sensing module to position and control glass frit around the titanium ring from a distance, ensuring proper arrangement and ignition.

Benefits of technology

Enables safe and efficient restart of the low-temperature melting furnace by preventing worker exposure to radiation and ensuring optimal glass frit placement for ignition.

✦ Generated by Eureka AI based on patent content.

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Abstract

A remote restart system for a vitrification facility and an operating method thereof are provided. The operating method of the remote restart system for a vitrification facility includes a step of operating the vitrification facility; and a step of causing a power loss to the vitrification facility, the power loss occurring during or before the operation of the vitrification facility, and the remote restart system assists in restarting the vitrification facility when the power loss occurs to the vitrification facility, and the remote restart system includes a low-temperature melting furnace, a glass frit provided inside the low-temperature melting furnace, a titanium ring for heating the glass frit inside the low-temperature melting furnace, and a bar-shaped handling unit that is inserted inside the low-temperature melting furnace and handles the glass frit in a state suitable for reigniting the glass frit.
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Description

[Technical Field]

[0001] The present invention relates to a remote restart system for vitrification equipment and an operating method thereof. [Background technology]

[0002] To start up the low-temperature melting furnace of a vitrification facility, titanium rings must be placed horizontally and glass frit must be properly distributed around the periphery. The initial glass loading and titanium ring placement can be performed by workers in close proximity. However, if the vitrification facility is shut down due to a temporary power loss, restarting it requires a process in which the titanium rings are placed horizontally from a distance through the vitrification facility gate and the glass frit is properly distributed. Summary of the Invention [Problem to be solved by the invention]

[0003] The problem to be solved by the present invention is to effectively restart a low-temperature melting furnace that has stopped due to a power outage or other circumstances in a vitrification facility that treats radioactive waste.

[0004] Another object of the present invention is to enable proper arrangement and operation of the titanium ring and glass frit inserted into the upper gate of the low-temperature melting furnace.

[0005] Another object of the present invention is to arrange the glass frit in an optimal shape around the periphery of the titanium ring so that initial ignition can be efficiently achieved.

[0006] Another object of the present invention is to enable the titanium ring and glass frit to be appropriately controlled from a distance in order to prevent workers from being exposed to radiation when working in close proximity to vitrification equipment for treating radioactive waste.

[0007] The objects of the present invention are not limited to those mentioned above, and other objects not mentioned herein will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0008] To achieve the above object, according to one aspect of the present invention, a method for operating a remote restart system for a vitrification facility includes the steps of operating the vitrification facility and a step of causing a power loss to the vitrification facility, the power loss occurring during or before the operation of the vitrification facility, the remote restart system assisting in restarting the vitrification facility when the power loss occurs, the vitrification facility including a low-temperature melting furnace, a glass frit provided inside the low-temperature melting furnace, and a titanium ring inside the low-temperature melting furnace for heating the glass frit, and the remote restart system including a bar-shaped handling unit inserted inside the low-temperature melting furnace for handling the glass frit in a state suitable for re-igniting the glass frit.

[0009] The titanium ring is provided in a first state in which the first region of the glass frit is positioned in the center, and the handling unit physically handles the first region in the center of the titanium ring to place the glass frit in at least the first region in a second state in which the glass frit is positioned in a second region that is the periphery of the first region.

[0010] In the second state, the glass frit is positioned on the second region with the first region as the center, at a water level higher than that of the glass frit in the first region.

[0011] In addition, the glass frit is positioned such that, in the second state, the glass frit in the first region covers at least the titanium ring.

[0012] The glass frit in the second region is formed to have one of a uniform, non-uniform, and rounded inclined surface.

[0013] The handling unit also includes a bar-shaped main body and a contact portion installed on the main body for handling the glass frit in the first region, and the contact portion handles the glass frit from the main body based on at least circumferential rotation.

[0014] The low-temperature melting furnace further includes a guide module for guiding the position of the handling unit inserted into the low-temperature melting furnace, wherein the handling unit is configured such that at least one of the main body and the contact part includes a metal material, and the guide module is installed in the low-temperature melting furnace or in the vicinity of the low-temperature melting furnace to generate a magnetic force within a set range, and when the handling unit is inserted into the low-temperature melting furnace, the handling unit is positioned at a preset initial position based on the magnetic force, allowing the glass frit to be handled.

[0015] In addition, the vitrification equipment detects the state of the glass frit inside the low-temperature melting furnace. situation further comprising a sensing module, situation The sensing module includes an imaging module for sensing the state of the glass frit, and Top level sense level Includes a sensing module.

[0016] The handling unit is provided with a size that does not exceed the diameter of the inner circumferential surface of the handling unit so that the handling unit can enter the center of the titanium ring.

[0017] In order to achieve the above object, according to another aspect of the present invention, there is provided a remote restart system for a vitrification facility, wherein the vitrification facility includes a low-temperature melting furnace, a glass frit provided inside the low-temperature melting furnace, and a titanium ring for heating the glass frit inside the low-temperature melting furnace; the remote restart system includes a bar-shaped handling unit that is inserted into the low-temperature melting furnace and handles the glass frit in a state suitable for re-igniting the glass frit; the vitrification facility experiences a power loss before or during operation, and the remote restart system includes a bar-shaped handling unit that is inserted into the low-temperature melting furnace and handles the glass frit in a state suitable for re-igniting the glass frit when the power loss occurs to the vitrification facility. [Effects of the Invention]

[0018] The present invention as described above has one or more of the following advantages.

[0019] The present invention can effectively restart a low-temperature melting furnace that has been shut down due to a power loss or other circumstances in a vitrification facility that treats radioactive waste.

[0020] In addition, the titanium ring and glass frit inserted into the upper gate of the low-temperature melting furnace can be properly positioned and operated.

[0021] In addition, the glass frit can be optimally arranged around the titanium ring to efficiently achieve the initial ignition process.

[0022] Furthermore, when working in the vicinity of a vitrification facility for treating radioactive waste, the titanium ring and glass frit can be appropriately controlled from a distance to prevent workers from being exposed to radiation. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a schematic diagram showing the configuration of a remote restart system for vitrification equipment according to one embodiment of the present invention. [Figure 2] 2 is a diagram showing how the glass frit according to FIG. 1 is handled; FIG. [Figure 3] 2 is a diagram showing how the glass frit according to FIG. 1 is handled; FIG. [Figure 4] 2 is a diagram showing how the glass frit according to FIG. 1 is handled; FIG. [Figure 5] 2 is a flowchart sequentially illustrating an operation method of a remote restart system for a vitrification facility according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Advantages and features of the present invention, as well as methods for achieving them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be realized in various different forms. These embodiments are provided solely to complete the disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art to which the present invention pertains. The present invention is defined solely by the scope of the claims. The same reference symbols refer to the same elements throughout the specification.

[0025] Referring to FIG. 1 , a remote restart system for a vitrification facility according to one embodiment of the present invention includes a low-temperature melting furnace 110, a glass frit F, a titanium ring 120, a manipulator 125, a handling unit 130, a guide module 140, and a status sensing module 150.

[0026] Furthermore, the handling unit 130 includes a main body 131 and a contact part 132. The status sensing module 150 includes a photographing module 151 and a contact part 132. level The low-temperature melting furnace 110 includes a sensing module 152. The low-temperature melting furnace 110 is provided in a predetermined shape according to the type.

[0027] The glass frit F is provided inside the low-temperature melting furnace 110. The titanium ring 120 is provided inside the low-temperature melting furnace 110 to heat the glass frit F.

[0028] The handling unit 130 is inserted into the low-temperature melting furnace 110. The handling unit 130 further includes a bar shape for handling the glass frit F in a state suitable for re-ignition of the glass frit F.

[0029] 2, the titanium ring 120 is provided in a first state in which the titanium ring 120 is positioned to accommodate the first region L1 of the glass frit F in the center thereof. Here, the handling unit 130 is for physically handling the first region L1 in the center of the titanium ring 120.

[0030] Referring to Figure 3, the handling unit 130 is configured to, for example, place the glass frit F in at least the first region L1 in a second state in which it is located in a second region L2, which is the periphery of the first region L1.

[0031] In the second state, the glass frit F is located on the second region L2 at a water level higher than that of the glass frit F in the first region L1, with the first region L1 being the center.

[0032] Furthermore, in the second state, the glass frit F in the first region L1 is positioned so as to cover at least the titanium ring 120. The glass frit F in the second region L2 is formed to have any one of a uniform, non-uniform, and rounded inclined surface.

[0033] 1, the body 131 of the handling unit 130 has a bar shape. The contact portion 132 of the handling unit 130 is provided on the body 131. The contact portion 132 serves to handle the glass frit F in the first region L1.

[0034] The contact part 132 handles the glass frit F based on at least a circumferential rotation from the main body part 131. The guide module 140 serves to guide the position of the handling unit 130 inserted into the low-temperature melting furnace 110.

[0035] The handling unit 130 is configured so that at least one of the main body 131 and the contact part 132 includes a metal material. The guide module 140 is installed in the low-temperature melting furnace 110 or in the vicinity of the low-temperature melting furnace 110 to generate a magnetic force within a set range.

[0036] Here, the manipulator 125 can operate in conjunction with the handling unit 130 to control the operation of the handling unit 130. The manipulator 125 is located outside the low-temperature melting furnace 110 and controls the handling unit 130.

[0037] In addition, when the handling unit 130 is placed on the low-temperature melting furnace 110 for the physical handling, the guide module 140 positions the handling unit 130 at a preset initial position based on at least one of the magnetic forces of attraction and repulsion.

[0038] The state detection module 150 of the vitrification equipment detects the state of the glass frit F inside the low-temperature melting furnace. The photographing module 151 of the state detection module 150 detects the state of the glass frit F.

[0039] Furthermore, the state sensing module 150 level The sensing module 152 detects the temperature of the glass frit F. Top surface level The handling unit 130 has a size that does not exceed the diameter of its inner circumference so that it can enter the center of the titanium ring 120.

[0040] 5, in the method for operating a remote restart system for a vitrification facility according to an embodiment of the present invention, the vitrification facility is in operation, and a power loss occurs to the vitrification facility.

[0041] The power loss may occur before or during operation of the vitrification equipment. The remote restart system assists in restarting the vitrification equipment when the power loss occurs to the vitrification equipment.

[0042] The remote restart system 100 includes a low-temperature melting furnace 110, glass frit F provided inside the low-temperature melting furnace 110, a titanium ring 120 for heating the glass frit F inside the low-temperature melting furnace 110, and a bar-shaped handling unit 130 that is inserted into the low-temperature melting furnace 110 and handles the glass frit F in a state suitable for re-igniting the glass frit F.

[0043] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art will understand that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the above-described embodiment is illustrative in all respects and is not limiting.

Claims

1. A method for operating a remote restart system for a vitrification facility, comprising: operating the vitrification facility; and A power loss occurs to the vitrification equipment, The loss of power occurs during or before the operation of the vitrification facility; The remote restart system assists in restarting the vitrification equipment when the power loss occurs in the vitrification equipment; The remote restart system comprises: a low-temperature melting furnace; a glass frit provided inside the low-temperature melting furnace; a titanium ring for heating the glass frit inside the low-temperature melting furnace; a bar-shaped handling unit that is inserted into the low-temperature melting furnace and handles the glass frit in a state suitable for re-igniting the glass frit; the titanium ring is provided in a first state positioned to accommodate the first region of the glass frit in a central portion thereof; The handling unit comprises: physically handling the first region in the center of the titanium ring to bring the glass frit in at least the first region into a second state in which the glass frit is located in a second region that is a periphery of the first region; The glass frit is In the second state, the upper surface of the glass frit in the second region is located at a higher level than the upper surface of the glass frit in the first region.

2. The glass frit is 2. The method for operating a remote restart system for a vitrification facility according to claim 1, wherein in the second state, the glass frit in the first region is positioned so as to cover at least the titanium ring.

3. The method of claim 2, wherein the glass frit in the second region is formed to have one of a uniform, non-uniform, and rounded inclined surface.

4. The handling unit comprises: a bar-shaped main body; a contact portion disposed on the body portion for handling the glass frit in the first region; The method for operating a remote restart system for a vitrification facility according to claim 1 , wherein the contact portion handles the glass frit from the main body portion based on at least a circumferential rotation.

5. A method for operating a remote restart system for a vitrification facility, comprising: operating the vitrification facility; and A power loss occurs to the vitrification equipment, The loss of power occurs during or before the operation of the vitrification facility; The remote restart system assists in restarting the vitrification equipment when the power loss occurs in the vitrification equipment; The remote restart system comprises: a low-temperature melting furnace; a glass frit provided inside the low-temperature melting furnace; a titanium ring for heating the glass frit inside the low-temperature melting furnace; a bar-shaped handling unit that is inserted into the low-temperature melting furnace and handles the glass frit in a state suitable for re-igniting the glass frit; Further comprising a guide module for guiding the position of the handling unit inserted into the low-temperature melting furnace; the handling unit includes a bar-shaped main body and a contact portion mounted on the main body for handling the glass frit in a first region located in a center of the titanium ring; At least one of the body and the contact portion is made of a metal material, The guide module includes: A method for operating a remote restart system for a vitrification facility, the system being installed in the low-temperature melting furnace or in the vicinity of the low-temperature melting furnace to generate a magnetic force within a set range, and when the handling unit is placed on the low-temperature melting furnace, the handling unit is positioned in a preset initial position based on the magnetic force so that the glass frit can be handled.

6. The vitrification equipment comprises: The low-temperature melting furnace further includes a state detection module for detecting a state of the glass frit, The state sensing module includes: The method for operating a remote restart system for a vitrification facility according to claim 2, further comprising: a photographing module for detecting the state of the glass frit; and a level detecting module for detecting the level of the upper surface of the glass frit.

7. A method for operating a remote restart system for a vitrification facility, comprising: operating the vitrification facility; and A power loss occurs to the vitrification equipment, The loss of power occurs during or before the operation of the vitrification facility; The remote restart system assists in restarting the vitrification equipment when the power loss occurs in the vitrification equipment; The remote restart system comprises: a low-temperature melting furnace; a glass frit provided inside the low-temperature melting furnace; a titanium ring for heating the glass frit inside the low-temperature melting furnace; a bar-shaped handling unit that is inserted into the low-temperature melting furnace and handles the glass frit in a state suitable for re-igniting the glass frit; A method for operating a remote restart system for a vitrification facility, wherein the handling unit is provided with a size that does not exceed at least the inner diameter of the titanium ring so that it can enter the center of the titanium ring.

8. A remote restart system for a vitrification facility, comprising: low-temperature melting furnace; a glass frit provided inside the low-temperature melting furnace; a titanium ring for heating the glass frit inside the low-temperature melting furnace; a bar-shaped handling unit that is placed inside the low-temperature melting furnace and handles the glass frit in a state suitable for re-ignition of the glass frit; the titanium ring is provided in a first state positioned to accommodate the first region of the glass frit in a central portion thereof; The handling unit comprises: physically handling the first region in the center of the titanium ring to bring the glass frit in at least the first region into a second state in which the glass frit is located in a second region that is a periphery of the first region; The glass frit is In the second state, the upper surface of the glass frit in the second region is located at a higher level than the upper surface of the glass frit in the first region.

9. A remote restart system for a vitrification facility, comprising: low-temperature melting furnace; a glass frit provided inside the low-temperature melting furnace; a titanium ring for heating the glass frit inside the low-temperature melting furnace; a bar-shaped handling unit that is placed inside the low-temperature melting furnace and handles the glass frit in a state suitable for re-ignition of the glass frit; Further comprising a guide module for guiding the position of the handling unit inserted into the low-temperature melting furnace; the handling unit includes a bar-shaped main body and a contact portion mounted on the main body for handling the glass frit in a first region located in a center of the titanium ring; At least one of the body and the contact portion is made of a metal material, The guide module includes: The handling unit is installed in the low-temperature melting furnace or in the vicinity of the low-temperature melting furnace so as to generate a magnetic force within a set range, and when the handling unit is placed on the low-temperature melting furnace, the handling unit is positioned at a preset initial position based on the magnetic force, so that the glass frit can be handled. Remote restart system for vitrification equipment.

10. A remote restart system for a vitrification facility, comprising: low-temperature melting furnace; a glass frit provided inside the low-temperature melting furnace; a titanium ring for heating the glass frit inside the low-temperature melting furnace; a bar-shaped handling unit that is placed inside the low-temperature melting furnace and handles the glass frit in a state suitable for re-ignition of the glass frit; A remote restart system for a vitrification equipment, wherein the handling unit is equipped with a size that does not exceed at least the inner diameter of the titanium ring so that it can enter the center of the titanium ring.

Citation Information

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