Production system of transverse electrode for efficient energy-saving submerged arc furnace

Abstract

A production system of a transverse electrode for an efficient energy-saving submerged arc furnace comprises an electrode cylinder; the lower portion of the electrode cylinder is a high-temperature end portion and is transversely arranged, a metal plug is plugged at a high-temperature end opening, and the high-temperature end portion is fixedly sleeved with a copper tile; the upper part of the electrode cylinder is a low-temperature end part and is vertically arranged, the low-temperature end part is connected with the high-temperature end part through an arc-shaped transition part, a liquid paste pushing and pressurizing part is reserved in the electrode cylinder from the copper tile to the lower part of the arc-shaped transition part, and a pushing and pressurizing mechanism is arrangedin the liquid paste pushing and pressurizing part; a mixing device is arranged above the port of the low-temperature end of the electrode cylinder, and the mixing device and the electrode cylinder arearranged in an insulating manner. The lower end part of the electrode cylinder is vertically arranged, the upper end part of the electrode cylinder is transversely arranged, and the middle part of the electrode cylinder is arc-shaped, so the electrode cylinder is matched with the pushing and pressurizing mechanism to move and pressurize materials while normal blanking of the electrode cylinder isensured, the preparation process of the vertical electrode is simulated, the electrode is transversely prepared, and the requirements of a calcium carbide furnace or a submerged arc furnace applyingthe transverse electrode are met.

Description

technical field [0001] The invention relates to the technical field of production of electrodes for submerged arc furnaces, in particular to a production system for high-efficiency and energy-saving transverse electrodes for submerged arc furnaces. Background technique [0002] Calcium carbide furnace is the main equipment for the production of calcium carbide. It mainly heats the materials in the furnace (such as quicklime and carbon materials) through the submerged arc electric heating of the electrodes and the resistance electric heating of the materials, so that the materials undergo chemical reactions to make calcium carbide. [0003] The Chinese invention patent with the notification number CN206783327U discloses a system for producing calcium carbide, including a lime kiln, a semi-coke drying device, a mixing bin and a calcium carbide furnace. The calcium carbide furnace includes a furnace body and three-phase electrodes vertically inserted in the furnace body , the i...

AI Technical Summary

Problems solved by technology

However, regardless of whether the calcium carbide furnace or the submerged arc furnace, the electrodes used are consumables and need to be continuously compensated.

At present, the electrodes of the vertical submerged arc furnace are prepared by using electrode paste. The electrodes prepared by the electrode paste include a vertical electrode cylinder, and a copper sleeve is fixed on the lower part of the electrode cylinder. Pitch and carbon are filled in the electrode cylinder, and the copper sleeve is energized. Finally, the material in the electrode cylinder is heated, so that the material in the electrode cylinder becomes five partitions from top to bottom, namely, the paste softening area (50-90°C), the liquid paste area (100-450°C), The firing area (450-500°C), the softening area of ​​the electrode cylinder (800°C) and the hard area of ​​the electrode end (2500°C). The copper sleeve is located in the firing area and the softening area of ​​the electrode cylinder. This structure can fire vertically arranged electrodes. This kind of self-cultivated vertical electrode is used in the current submerged arc furnace. It does not match the newly developed CN201920582546.0 calcium carbide furnace and high-efficiency and energy-saving calcium carbide production system, and it is not suitable for horizontal electrodes. preparation scheme

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