Function of Submerged Arc Furnace Pressure Ring

The submerged arc furnace pressure ring is a crucial component of the electrode holder. It is used to mount a bellows expander or hydraulic cylinder and work with them to radially compress the conductive copper sheet against the electrode, thereby ensuring the proper operation of the electric furnace. Submerged arc furnaces pressure rings are widely used in submerged arc furnaces producing ferroalloys such as ferrosilicon, ferromanganese, and ferrochrome.

Operating Principle

Pressure rings for submerged arc furnaces are important industrial equipment in the metallurgical industry and for mechanical equipment such as calcium carbide. Their operating principle is as follows:

For clamping devices commonly using conductive copper structures, the pressure ring, which holds the copper sheet, becomes a key component of the electrode holder system. Therefore, the pressure ring plays a crucial role in copper sheet electrode holder systems.

Early force rings employed large bolts, with the pressure ring's holding force on the copper sheet adjusted by turning the bolts. Bellows pressure rings ensure close contact between the copper sheet and the electrode.

A bellows is installed at the corresponding position on each copper sheet. Hydraulic pressure controls the bellows' extension and contraction to tighten or loosen the sheet. Because the pressure of each copper tile can be adjusted individually, the force acting on each tile is relatively uniform, resulting in a simple structure and easy maintenance.

The Function of Submerged Arc Furnace Pressure Ring

The SAF pressure ring is a critical component used to secure and support the electrodes in the furnace. Its typically made of metal and works in conjunction with a bellows expander or hydraulic cylinder to ensure close contact between the electrodes and the conductive copper tile, thereby ensuring stable current transmission;

It also acts as a seal to prevent gas leakage within the furnace;

The material selection for the pressure rings should consider its high-temperature resistance, corrosion resistance, and electrical conductivity. Common materials include austenitic stainless steel.

The submerged arc furnace pressure ring is a critical component in the SAF, securing the electrodes, transmitting current, and sealing the furnace body to ensure proper operation. During SAF operation, the pressure ring may experience failures such as weld cracking and requires regular inspection and maintenance.