Testing device of high temperature erosiveness of electrodes for glass electric melting furnace and method thereof

Abstract

The invention discloses a testing device of high temperature erosiveness of electrodes for a glass electric melting furnace and a method thereof, and belongs to the field of glassmaking. The testing device comprises electrodes to be tested, a controllable preheating furnace, a rotating base which is arranged at the bottom of the preheating furnace and is driven by means of a motor, a crucible which is disposed on the rotating base and is used for containing erosive molten glass and a furnace lid which is placed on the preheating furnace by means of an adjustment lever. The two electrodes to be tested pass through the furnace lid and are inserted into the erosive molten glass in the crucible. An end of each electrode to be tested above the furnace lid is provided with two connection terminals. A voltmeter is connected in parallel between a connection terminal A1 and a connection terminal B1 of the electrode to be tested A and the electrode to be tested B so as to form a voltage measuring circuit. a connection terminal A2 and a connection terminal B2 are connected in series with an ammeter, a switch and a power supply capable of realizing voltage transformation output to form a current measuring circuit. The testing device provided by the invention has a simple structure, is practical and convenient, has high reliability and stability, and fills up the blank of measuring equipment and measuring methods of this kind.

Description

technical field [0001] The invention belongs to the field of glass manufacturing, and relates to a test device and a method for testing the high-temperature corrosivity of electrodes used in glass electric melting furnaces. Background technique [0002] Due to its high efficiency, high quality, less pollution and easy automatic control, glass electric melting furnaces have developed rapidly in my country in recent years. According to the conductive properties of molten glass ions in the existing electric melting furnace, the electrodes are immersed in the molten glass, and the Joule effect is used to convert the electric energy into heat energy inside the carrier to realize the melting of the glass. When the glass electric melting furnace is used in the middle and late stages, due to the erosion and oxidation of the glass liquid, the top of the electrode becomes sharper and shorter, the surface area of ​​the electrode in the glass liquid becomes smaller, and it is di...

AI Technical Summary

Problems solved by technology

There is no public report on the corrosion resistance test of the high temperature glass liquid under the working voltage of the glass electrode material, and there is no relevant test method to follow. Therefore, there is an urgent need for a high-reliability test device and method for testing the high temperature corrosion resistance of the electrode material.

Images