Conductive copper tile of submerged arc furnace

Abstract

The utility model belongs to the technical field of smelting equipment, namely a conductive copper tile of a submerged arc furnace. The copper tile comprises a copper tile body, and a fastener is arranged on the copper tile body and connected with an insulation area. A copper tile insulation top block is embedded in a groove of the fastener connection insulation area, the copper tile insulation top block is fixed with the copper tile body through a plurality of bolt jackscrews, screw heads of the bolt jackscrews sink into counter bores of the copper tile insulation top block, and the counter bores are covered with insulation sealing plates. The copper tile solid insulation top block and the insulation sealing plate are adopted to cover the connecting screws, the structural strength meets the use requirement, a better insulation effect can be achieved, safety guarantee is provided for use of equipment, and meanwhile manufacturing is easy and convenient, and mounting and dismounting are convenient. The size of the copper tile insulating ejector block is optimized, the outer diameter of the ejector block is smaller than the inner diameter of the pressure ring fixing sleeve, the copper tile insulating ejector block can be replaced only by detaching the corrugated pipe telescopic box under the condition that the pressure ring is not detached, the maintenance difficulty is small, and the production and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of smelting equipment, specifically a conductive copper tile for a submerged arc furnace. Background Technology

[0002] In submerged arc furnace equipment in the metallurgical industry, conductive copper tiles are key components. The secondary current of the furnace is transmitted from the transformer through the short grid, water-cooled cables, and in-furnace feed pipes to the conductive copper tiles, which then supply power to the furnace electrodes, enabling them to generate high temperatures to melt ferroalloys. Changes in furnace conditions can lead to slag inclusions and dust accumulation in the contact area between the conductive copper tiles and the pressure ring. Slag and dust contain a large amount of conductive metal elements, and when the slag and dust are highly viscous, they can adhere to the space between the copper tiles and the pressure ring. If a short circuit occurs, both the copper tiles and the pressure ring will puncture and leak, posing a safety hazard. Previously, an insulating pad was installed in the contact area between the conductive copper tiles and the pressure ring. Traditionally, the insulating pad consists of an insulating box installed on the copper tile body 1. The insulating box comprises a stainless steel top block 7, an insulating box 8, an insulating washer 9, an insulating tube 10, and connecting fasteners 11, etc. (see...) Figure 2 The current insulation box structure is not very strong, and the top block is easily damaged during installation and removal, posing a challenge to assembly and maintenance. Therefore, this technology aims to enhance insulation strength, mitigate risks, and make the structure easier to maintain and replace, thereby reducing maintenance costs through copper tile structure optimization. Utility Model Content

[0003] The purpose of this utility model is to provide a conductive copper tile for a submerged arc furnace that has a reasonable structure and is safe and reliable, in order to address the above-mentioned shortcomings.

[0004] The technical solution of this utility model is: a conductive copper tile for a submerged arc furnace, comprising a copper tile body with a fastener-connected insulation area. A copper tile insulating top block is embedded in the groove of the fastener-connected insulation area. The copper tile insulating top block is fixed to the copper tile body by multiple bolts and set screws. The bolt and set screw heads are recessed into the countersunk holes of the copper tile insulating top block, and an insulating sealing plate is placed over the countersunk holes.

[0005] The copper tile insulating top block is a fluorophlogopite block.

[0006] The advantages of this utility model are: 1. The use of a solid copper tile insulating top block and an insulating sealing plate to cover the connecting screws not only meets the structural strength requirements but also provides better insulation, ensuring the safety of the equipment. It is also simple to manufacture and easy to install and disassemble. 2. The dimensions of the copper tile insulating top block have been optimized. The outer diameter of the top block is now smaller than the inner diameter of the pressure ring fixing sleeve. This allows for replacement of the copper tile insulating top block without disassembling the pressure ring; only the bellows telescopic box needs to be removed. This reduces maintenance difficulty and production and maintenance costs.

[0007] The embodiments of the present application will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is the structure diagram of the present application.

[0009] Figure 2 is the structure diagram of the product before improvement. DETAILED DESCRIPTION

[0010] Referring to Figure 1 , the names of the parts are as follows: copper tile body 1, copper tile insulation top block 2, bolt top wire 3, insulation sealing plate 4, copper tile lifting lug 5, counterbore 6.

[0011] Referring to Figure 2 , the names of the parts are as follows: copper tile body 1, copper tile lifting lug 5, copper tile stainless steel top block 7, insulation box 8, insulation gasket 9, insulation tube 10, connecting fastener 11.

[0012] Referring to Figure 1 , a conductive copper tile for a submerged arc furnace comprises a copper tile body 1, the copper tile body 1 is provided with a fastener connecting insulation area, a copper tile insulation top block 2 made of fluorine mica is inlaid in a groove of the fastener connecting insulation area, the copper tile insulation top block 2 is fixed to the copper tile body 1 through four bolt top wires 3, the screw head of the bolt top wire 3 is sunk into a counterbore 6 of the copper tile insulation top block, an insulation sealing plate 4 is covered on the counterbore 6 to seal the bolt top wire 3 and avoid exposure, the number of the insulation sealing plate 4 is the same as that of the bolt top wire 3, and the bolt top wire 3 insulates and fixes the copper tile insulation top block 2 to the copper tile body 1. Figure 1 The right circle in the middle is the copper tile body 1, on the basis of the original structure design, the top block structure form is optimized, with the continuous improvement of the comprehensive performance of the insulation material, the top block made of fluorine mica is adopted to replace the stainless steel material top block with a mica insulation box, meanwhile, the insulation sealing plate 4 is additionally arranged to insulate and protect the fastener connecting insulation area, the insulation strength of the equipment is improved, the equipment damage rate is reduced, and the difficulty of the equipment maintenance in the later period is greatly reduced.

[0013] The above description is only a specific embodiment of the present application, and various examples do not constitute a limitation on the essential content of the present application.

Claims

1. A conductive copper tile for a submerged arc furnace, comprising a copper tile body (1), wherein fasteners connect an insulating area on the copper tile body (1), characterized in that... A copper tile insulating top block (2) is embedded in the groove of the fastener connection insulation area. The copper tile insulating top block (2) is fixed to the copper tile body (1) by multiple bolts and screws (3). The bolt heads (3) are sunk into the countersunk hole (6) of the copper tile insulating top block and an insulating sealing plate (4) is placed on the countersunk hole (6).

2. The conductive copper tile for a submerged arc furnace according to claim 1, characterized in that... The copper tile insulating top block (2) is a fluorophlogopite block.

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