Submerged arc furnace copper tile with split disassembly and assembly structure

Abstract

The submerged arc furnace copper tile with the split disassembly and assembly structure comprises a copper tile body, a cooling pipe is arranged in the copper tile body in a penetrating mode, grooves are symmetrically formed in the portions, at the two ends of the cooling pipe, of the copper tile body, a water inlet pipe and a water outlet pipe are inserted in the grooves respectively, and the water inlet pipe and the water outlet pipe are communicated with a water inlet and a water outlet of the cooling pipe respectively. The connecting position of the water inlet pipe and the cooling pipe and the connecting position of the water outlet pipe and the cooling pipe are fastened through buckles embedded in the grooves, and buckle connectors are filled and sealed through filling blocks. A water inlet pipe and a water outlet pipe can be quickly inserted into the grooves preset in the ends of the copper tile body, the water inlet pipe and the water outlet pipe are fastened through the buckles after being inserted, a traditional welding connection mode is replaced, welding seams cannot be generated, the problem that copper tile welding points are embrittled and cracked in a long-time high-temperature environment is solved, the disassembly and assembly process is more flexible and convenient through buckle connection, and the service life of the copper tile is prolonged. And resource waste caused by long blow-out time of the submerged arc furnace is avoided.

Description

Technical Field

[0001] The utility model relates to the field of submerged arc furnaces, in particular to a submerged arc furnace copper tile with a split disassembly and assembly structure. Background Art

[0002] Submerged arc furnace, also known as electric arc furnace, is mainly used to produce ferroalloy, industrial silicon, calcium carbide, yellow phosphorus and other products. It is mainly composed of furnace shell, furnace cover, furnace lining, water cooling system, smoke exhaust system, dust removal system, hydraulic system, loading and unloading system, burn-through device, electrode, electrode holder, transformer and various electrical equipment, and consumes a lot of electricity.

[0003] Copper tiles are large conductive components of the submerged arc furnace. The secondary current of the submerged arc furnace is transmitted from the transformer through the short network, water-cooled cables, and conductive copper pipes to the copper tiles, which then supply power to the electrodes of the submerged arc furnace. Copper tiles not only transmit current to the electrodes, but also play a clamping role when clamping the electrodes and using self-baking electrodes. Even when adjusting the height of the sintering zone, copper tiles also act as coolers to limit the spread of heat to the upper part of the electrode holder. Therefore, copper tiles are a submerged arc furnace part that undertakes a variety of heavy tasks. Even in a high-temperature, high-load working environment, copper tiles are still required to have good electrical conductivity, thermal conductivity, and mechanical properties.

[0004] The existing copper tiles of the submerged arc furnace are connected by welding. The copper tile welding points are continuously in service under high temperature conditions, which can easily lead to brittle cracking of the joint welds. After cracking, the following problems occur: (1) Water leaks from the cracked copper tiles, which may cause explosion accidents in the furnace in severe cases. Therefore, in order to ensure product quality and production safety, the furnace needs to be stopped and the damaged copper tiles need to be replaced in time; (2) The arc surface of the copper tile body connected to the copper tube is damaged due to cracking and cannot be tightly connected, resulting in the inability to conduct current smoothly, affecting production; (3) Since the submerged arc furnace is connected to the copper tile by welding, the disassembly and assembly process of the copper tile is time-consuming and labor-intensive, and the work intensity is high, which delays production. Utility Model Content

[0005] The utility model provides a copper tile for an electric arc furnace with a split disassembly structure, and aims to quickly connect the copper tile to the electric arc furnace through the split disassembly structure to improve the stability of the connection point and the convenience of disassembly and replacement.

[0006] To achieve its purpose, the utility model adopts the following technical solutions:

[0007] A copper tile for an electric arc furnace with a split disassembly and assembly structure comprises a copper tile body, a cooling pipe is provided through the copper tile body, grooves are symmetrically provided on the copper tile body at both ends of the cooling pipe, a water inlet pipe and a water outlet pipe are respectively inserted into the grooves, and the water inlet pipe and the water outlet pipe are respectively connected to the water inlet and the water outlet of the cooling pipe; the connection between the water inlet pipe and the cooling pipe, and the connection between the water outlet pipe and the cooling pipe are fastened by buckles embedded in the grooves, and the buckle interfaces are filled and sealed by filling blocks.

[0008] Furthermore, a sealing ring is provided in the groove.

[0009] Furthermore, the filling block is wedge-shaped, and its size is adapted to the buckle interface.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model provides a copper tile for an electric arc furnace with a split disassembly and assembly structure. The water inlet pipe and the water outlet pipe can be quickly inserted through the grooves preset at the ends of the copper tile body. After insertion, they are fastened with snap fasteners, replacing the traditional welding connection method. No weld seams are generated, and the problem of brittle cracking of the copper tile welding points under long-term high-temperature conditions is avoided. The snap connection makes the disassembly and assembly process more flexible and convenient, avoids the waste of resources caused by the long shutdown time of the electric arc furnace, and improves the stability of the connection points between the copper tile body and the water inlet pipe and the water outlet pipe. In addition, the double sealing method of the sealing ring and the filling block is adopted, which has good sealing performance and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the copper tile structure of the ore-fired furnace of the utility model;

[0013] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0014] Figure 3 for Figure 1 Sectional view at the middle BB;

[0015] In the figure: 1-copper tile body; 2-water inlet pipe; 3-buckle; 4-sealing ring; 5-filling block; 6-groove; 7-cooling pipe; 8-water outlet pipe. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] like Figure 1-3 As shown, the utility model is a copper tile for an electric arc furnace with a split disassembly and assembly structure, comprising a copper tile body 1, a cooling pipe 7 passing through the copper tile body 1, grooves 6 symmetrically provided on the copper tile body 1 at both ends of the cooling pipe 7, and a sealing ring 4 provided in the groove 6; a water inlet pipe 2 and a water outlet pipe 8 are respectively inserted into the groove 6, and the water inlet pipe 2 and the water outlet pipe 8 are respectively connected to the water inlet and the water outlet of the cooling pipe 7; the connection between the water inlet pipe 2 and the cooling pipe 7, and the connection between the water outlet pipe 8 and the cooling pipe 7 are fastened by a buckle 3 embedded in the groove 6, and the interface of the buckle 3 is filled and sealed by a filling block 5; the filling block 5 is a wedge-shaped copper block, and the size is adapted to the interface of the buckle 3.

[0018] When a new copper tile body 1 needs to be installed, a sealing ring 4 is pre-placed in the groove 6, and then the ports of the water inlet pipe 2 and the water outlet pipe 8 are respectively inserted into the groove 6 of the copper tile body 1, and the water inlet pipe 2 and the water outlet pipe 8 are respectively connected to the cooling pipe 7 in the copper tile body 1, and the connection is fastened by the buckle 3. Since the buckle 3 will produce an interface, a filling block 5 of suitable size is inserted at the interface for filling and sealing. After the installation is completed, the copper tile body 1 is cooled by the cooling water of the water inlet pipe 2 and the water outlet pipe 8 to ensure normal production.

Claims

1. A copper tile for a submerged arc furnace with a split detachable structure, comprising a copper tile body (1), wherein a cooling pipe (7) is provided through the copper tile body (1), and wherein: Grooves (6) are symmetrically provided on the copper tile body (1) at both ends of the cooling pipe (7), and a water inlet pipe (2) and a water outlet pipe (8) are respectively inserted into the grooves (6), and the water inlet pipe (2) and the water outlet pipe (8) are respectively connected to the water inlet and the water outlet of the cooling pipe (7); the connection between the water inlet pipe (2) and the cooling pipe (7), and the connection between the water outlet pipe (8) and the cooling pipe (7) are fastened by a buckle (3) embedded in the groove (6), and the interface of the buckle (3) is filled and sealed by a filling block (5).

2. The copper tile for a submerged arc furnace with a split disassembly structure as claimed in claim 1, characterized in that: A sealing ring (4) is provided in the groove (6).

3. A copper tile for a submerged arc furnace with a split disassembly structure as claimed in claim 1 or 2, characterized in that: The filling block (5) is wedge-shaped, and its size is adapted to the interface of the buckle (3).

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