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KR-20260067801-A - ELECTRODE COOLING DEVICE

KR20260067801AKR 20260067801 AKR20260067801 AKR 20260067801AKR-20260067801-A

Abstract

According to the present disclosure, the electrode rod clamp for gripping an electrode rod, a water ring provided on the inner circumference of the electrode rod clamp and through which cooling water flows, and a spray nozzle coupled to the water ring and spraying the cooling water inside the water ring in the form of a mist toward the electrode rod are included.

Inventors

  • 최상건
  • 백찬준
  • 신종훈
  • 강용훈
  • 정호현
  • 정재복

Assignees

  • 주식회사 포스코

Dates

Publication Date
20260513
Application Date
20241106

Claims (7)

  1. Electrode rod clamp for gripping an electrode rod; A water ring provided on the inner surface of the electrode rod clamp and through which cooling water flows; and An electrode rod cooling device comprising: a spray nozzle coupled to the above-mentioned water ring and spraying cooling water inside the water ring in the form of a mist toward the electrode rod.
  2. In paragraph 1, An electrode rod cooling device having a mounting groove for mounting the water ring provided on the inner surface of the electrode rod clamp.
  3. In paragraph 1, The above spray nozzle is an electrode rod cooling device detachably mounted on the above water ring.
  4. In paragraph 1, The above water ring is an electrode rod cooling device located on the lower side of the inner circumference of the above electrode rod clamp.
  5. In paragraph 1, An electrode rod cooling device in which cooling water flows inside the electrode rod clamp.
  6. In paragraph 1, An electrode rod cooling device further comprising a cooling water supply unit that supplies the cooling water to the above water ring.
  7. In paragraph 1, An electrode rod cooling device having an electrode pad in contact with the electrode rod provided between the electrode rod clamp and the electrode rod.

Description

Electrode Cooling Device The present disclosure relates to an electrode rod cooling device for cooling an electrode rod of an electric furnace. Generally, an electric furnace is equipment that converts electrical energy into thermal energy to melt scrap, and the electrode rod plays a key role in this process. Electrode rods are carbon rods whose main component is carbon, and they are consumable parts that are continuously worn out during operation. Since new electrode rods must be connected when the electrode rods wear out and become short, this accounts for a significant portion of the electric furnace operating costs. To address this problem, most electric furnace manufacturers install a ring-shaped cooling water sprayer at the bottom of the electrode clamp. This device sprays cooling water during operation to prevent the electrode from overheating and oxidizing. However, this method also has problems. First, the ring-shaped spray ring is deformed and damaged by the heat inside the furnace, requiring replacement, which results in a significant waiting time. Second, a large amount of cooling water sprayed through the holes in the ring-shaped spray ring hits the electrodes and rebounds, falling downwards. This causes the refractory ceiling to erode or water to enter the furnace, posing a risk of explosion. Therefore, the development of a new technology is required that can effectively prevent wear of the electrode rod while solving the problems of existing cooling methods. FIG. 1 is a drawing illustrating an electrode arm supporting an electrode rod according to one embodiment of the present disclosure. FIG. 2 is a drawing showing a water ring installed on the inner surface of an electrode rod clamp according to one embodiment of the present disclosure. FIG. 3 is a drawing of an electrode rod clamp according to one embodiment of the present disclosure, viewed from below. FIG. 4 is a cross-sectional view of an electrode rod clamp according to one embodiment of the present disclosure. FIG. 5 is a drawing showing a separated state of a spray nozzle according to one embodiment of the present disclosure. The embodiments described in this specification are merely the most preferred embodiments of the present invention and do not represent all technical concepts of the present invention; therefore, it should be understood that various equivalents or modifications that can replace them at the time of filing this application are also included within the scope of the rights of the present invention. Additionally, the same reference numerals or symbols presented in each drawing of the present disclosure represent parts or components that perform substantially the same function. Furthermore, the terms used in this disclosure are for describing embodiments and are not intended to limit or restrict the disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this disclosure, terms such as “comprising” or “having” are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the disclosure, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Additionally, terms including ordinal numbers, such as “first,” “second,” etc., used in this disclosure may be used to describe various components, but said components are not limited by said terms, and said terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of this disclosure, the first component may be named the second component, and similarly, the second component may be named the first component. The term “and/or” includes a combination of a plurality of related described items or any of a plurality of related described items. Furthermore, in this disclosure, the meaning of “identical” includes items that are similar in attributes or similar within a certain range. Additionally, “identical” means “substantially identical.” The meaning of “substantially identical” should be understood as including within the scope of “identical” numerical values that fall within the margin of error in manufacturing or numerical values that correspond to differences within a range that do not hold significance relative to a reference value. In addition, terms such as "~part," "~unit," "~block," "~part," and "~module" may refer to a unit that processes at least one function or operation. For example, the above terms may refer to at least one piece of hardware such as an FPGA (field-programmable gate array) or ASIC (application specific integrated circuit), at least one piece of software stored in memory, or at least one process processed by a processor. Singular expressions include plural expressions unless there is an obvious exception in the context. Meanwhile, terms such as “front,” “rear,” “left,” and