Keywords: industrial electric furnace, furnace, electric furnace, industrial furnace, High temperature, disadvantages,

　　A comprehensive analysis of the disadvantages of industrial electric furnaces

　　Industrial electric furnaces are the main energy-consuming equipment in industrial production, consuming about 1/4 of the country is total energy consumption once a year. Especially in the hot processing production of metallurgical, electromechanical and other enterprises, the energy consumption of the furnace accounts for more than 70% of the energy consumption of the process, which is the largest energy user in the production. The use of industrial electric furnace has greatly improved the production efficiency of processed products and effectively reduced the production cost. However, there are still some shortcomings in the use of industrial electric furnace, that is, the number of industrial electric furnace repairs is much, and there are still many unsafe factors. Why is there such a disadvantage? Here is a simple analysis.

　　The reason for the large number of repairs to industrial electric furnaces is that the thermal processing process in mechanical factories is mostly carried out at 650 ℃ & mdash; The temperature is 1700 ℃, therefore, the masonry of the industrial electric furnace is subjected to high temperature effects such as high temperature ablation and sharp change of furnace temperature; the chemical erosion of various furnace gas, molten liquid and slag, as well as the impact and wear of various materials, high temperature air flow and molten metal, these comprehensive factors accelerate the damage of industrial electric furnaces. Therefore, compared with general cold processing equipment, the technical status of industrial electric furnaces is easy to change, the service life is short, and the number of repairs is high. In general machinery factories, although the number of industrial electric furnaces is not large, accounting for about 5% of the total equipment & mdash;8%, but the number of major repairs each year accounts for 16% of the total number of major repairs & mdash;20%.

　　Then why are there so many unsafe factors in industrial electric furnaces?

　　First of all, industrial electric furnace is a 1 kind of high-temperature equipment, which is closely related to fuel oil, gas, electric energy, dust, etc., and is easy to cause fire, burn, explosion, poisoning, electric shock and other accidents.
　　Secondly, the high temperature during the operation of industrial electric furnaces is prone to burns, burns and burns. High temperature molten salt and molten metal will explode when exposed to water. Gas and controllable atmosphere are explosive gases, oil lines, oil tanks and oil depots are flammable and explosive facilities, if used improperly, explosion and poisoning accidents will occur. The safety protection device of the electric furnace fails and electric shock will occur after contact. Cyanide in the cyanide furnace is highly toxic. Spontaneous combustion will occur when the nitrate furnace is heated to above 550 ℃. Nitrate will explode when combined with charcoal and carbon black.

　　The final reason is that the industrial electric furnace repair environment is poor, many repair operations are carried out in the furnace, the space is very crowded, the natural lighting is insufficient, and the ventilation conditions are very poor. Workers are not only affected by dust during operation, but also directly affected by high temperature, smoke, toxic gases and corrosion of chemical materials. Some stoves are as high as 10m & mdash;20m, due to the narrow site of the furnace body, the repair work is high-altitude three-dimensional intersection and multi-layer operation, which is very dangerous. Therefore, when operating and maintaining industrial furnaces, great attention should be paid to safety issues. Especially when organizing industrial furnaces, we must attach great importance to safety issues. Especially in the organization of industrial furnace repair or hot repair, more attention should be paid to these unsafe factors may cause the unfortunate accident.
　　These disadvantages of industrial electric furnaces are related to the development and research of their own equipment, but to a certain extent, they also need the careful attention of operators to avoid these disadvantages and correctly manage the use of industrial electric furnaces.

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