Submerged arc furnace electrode slipping hydraulic system

Abstract

The invention provides a submerged arc furnace electrode slipping hydraulic system and belongs to the technical field of submerged arc furnaces. The submerged arc furnace electrode slipping hydraulicsystem comprises upper contracting brakes, lower contracting brakes and slipping cylinders arranged between the upper contracting brakes and the lower contracting brakes. The slipping cylinders communicate with a hydraulic station system. A ball valve, a stop valve, a pressure reducing valve, an overflow valve and an electromagnetic reversing valve are arranged between the hydraulic station systemand the slipping cylinders so as to reduce the pressure of oil delivered to the slipping cylinders. The submerged arc furnace electrode slipping hydraulic system reduces the oil pressure of the slipping cylinders to 3-4 MPa. When the upper contracting brakes are opened under a PLC operation instruction, the slipping cylinders start to drive the upper contracting brakes to rise and can effectivelyprotect a three-phase electrode of a submerged arc furnace, and the situation that electrode breakage caused by out of control of the three-phase electrode and the upper contracting brakes is avoided. Therefore, electrode resources are saved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of submerged arc furnaces, and in particular relates to a hydraulic system for pressing and releasing electrodes of submerged arc furnaces. Background technique [0002] Submerged arc furnace is an industrial electric furnace, mainly used for the production of important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide, such as: ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy and other ferroalloys. Industrial silicon furnaces use semi-graphite carbon electrodes. Since the carbon electrodes are continuously consumed during the smelting process, it is necessary to perform electrode pressing operations to replenish the consumed part of the carbon electrodes in time, thereby ensuring that the working end of the electrodes is buried. The length inserted into the charge meets the requirements of the furnace operation process....

AI Technical Summary

Problems solved by technology

[0007] Based on the above-mentioned background problems, the present invention aims to provide a hydraulic system for pressing and releasing the electrodes of submerged arc furnaces to solve the defect that the electrodes are easily broken in the prior art, thereby saving carbon electrode resources and reducing production costs

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