Electric-arc furnace safety cooling system for producing refractory materials

Abstract

The invention discloses an electric-arc furnace safety cooling system for producing refractory materials. The electric-arc furnace safety cooling system comprises an electric-arc furnace, a heat exchanger, a water storage pond, a cooling tower, a high-position water tank, a make-up water tank arranged in an airtight mode and a make-up pump. The electric-arc furnace is provided with a water jacket. The heat exchanger comprises an inner pipe, and the inner pipe is connected with the water jacket of the electric-arc furnace through a first pipeline. The water outlet end of the inner pipe is connected into the water storage pond through a second pipeline. The heat exchanger is connected with a third pipeline. A water exchange box is connected with the cooling tower through a fourth pipeline. The water storage pond is connected with the water jacket through a fifth pipeline. The water jacket is connected with the make-up water tank. The make-up water tank is connected with the high-position water tank. The high-position water tank is connected with the make-up pump. By the adoption of the electric-arc furnace safety cooling system, the phenomenon that the electric-arc furnace emits high-temperature heat to the outside to cause pollution can be avoided in normal operation, the phenomenon that cooling water is discharged outwards to cause steam pollution is also avoided, the high temperature and high pressure generated in the water jacket due to the vaporization phenomenon can be prevented during power failure, and thus safe operation is guaranteed; and meanwhile the utilization rate of water resources is high.

Description

technical field [0001] The invention relates to the technical field of refractory material production, in particular to an electric arc furnace cooling mechanism. Background technique [0002] In the production process of molten casting refractories, electric arc furnace is commonly used equipment. During operation, the electric arc furnace melts the refractory raw materials in it, so it needs to maintain a high temperature continuously during the production process. Excessively high temperatures can reduce equipment life and prevent workers from working properly in the workshop. Therefore, it is necessary to cool the furnace wall of the electric arc furnace. While maintaining the high temperature in the furnace, control the high temperature area in the electric arc furnace to prevent a large amount of heat from being transferred to the environment, reduce the service life of the equipment, and make the workshop unsuitable for manual work. Operation. [0003] The existing...

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Problems solved by technology

The disadvantages of this cooling structure are: the temperature of the cooling water is high after being heated by the electric arc furnace, and even boiling occurs when the flow rate is small; when the cooling water is discharged, the steam diffuses, which pollutes the factory area and damages the walls of the factory area due to long-term humidity

The discharged cooling water cannot be reused, and the waste of water resources is serious

[0004] In addition, the existing cooling structure also has potential safety hazards: if an unexpected power failure occurs during the production process, the water pump will stop running and the cooling water will no longer flow; at this time, the high-temperature feed liquid in the electric arc furnace will not be cooled rapidly due to power failure, Instead, it will maintain a high temperature for a long time

In this way, the water in the water jacket of the electric arc furnace will be heated to boiling, and if the system is well sealed, there will be a danger of explosion; if the system is an open system, a large amount of steam will be brought in, preventing personnel from entering the production area

At present, there is no electric arc furnace production system that can solve this safety hazard

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