Conveying System

In the field of heavy metallurgical equipment manufacturing, the Electroslag Remelting Furnace (ESR), as a core equipment for producing high-quality special steels, superalloys, and titanium alloys, places extremely high demands on the load-bearing capacity, operational precision, and environmental adaptability of its various mechanical components. Among them, the Demag DRS Wheel Block Systems, acting as a core transmission component for furnace body shifting, mold car movement, and electrode transfer, plays a pivotal role.

I. Application Scenarios of DRS Wheel Block Systems in Electroslag Remelting Furnace Systems

During the smelting and operation processes, ESRs are frequently subjected to tremendous vertical loads, high thermal radiation, and complex dusty environments. DRS Wheel Block are primarily applied in the following key sections:

Heavy-Duty Mold Bottom Car and Tapping Car: Upon the completion of ESR smelting, the produced steel ingots and mold bases often weigh anywhere from over a dozen to tens of tons. To achieve smooth movement and precise docking of the bottom car on rails, travelling wheel boxes with exceptionally high load-bearing capacity must be employed.

Electrode Lifting and Lateral Moving Car: In large-capacity ESRs, the electrode's lateral transfer or feeding mechanism requires frequent positioning and movement along rails. DRS Wheel Block Systems ensure stable operation of the mechanism and reduce mechanical vibration, thereby guaranteeing the precision of electrode alignment.

Movable Furnace Frame and Multi-Station Transfer Systems: Some modern ESRs adopt a multi-station rotational operation mode, where the entire furnace frame or electrode car needs to be horizontally shifted and transferred between different stations. This heavily relies on DRS Wheel Block featuring high strength and wear resistance to accomplish high-span, heavy-load reciprocating operations.

II. Technical and Material Requirements for ESR Wheel Block Systems

Given the specialized nature of metallurgical working conditions, the DRS Wheel Block matched with ESRs cannot be ordinary industrial wheel boxes and typically need to meet the following technical standards:

High Strength and Rigid Structure: The DRS Wheel Block housing and wheel body must possess outstanding impact and load resistance capabilities. The wheel body is usually made of high-strength cast steel or premium ductile iron to ensure neither deformation nor cracking occurs when subjected to massive static and dynamic loads.

High Temperature and Thermal Radiation Resistance: Due to the elevated ambient temperatures surrounding ESRs, the bearing configuration and lubricating grease inside the Wheel Block must exhibit good high-temperature performance to prevent shaft seizure or jamming caused by lubrication failure.

Sealing and Dust-Proof Design: Metallurgical sites are often accompanied by metal dust and mill scale. DRS Wheel Block must be equipped with multi-stage sealing structures to effectively prevent foreign matter from invading the interior of the bearings and to extend the service life of the equipment.

III. Full Range of Demag DRS Wheel Block Models

To accommodate the varying tonnage and structural requirements of different Electroslag Remelting Furnace setups, we provide a comprehensive range of DRS Wheel Block models (from DRS 112 to DRS 500). These systems offer robust radial load capacities ranging from 2.7 tons up to 40 tons per single wheel block, ensuring precise matching for everything from auxiliary transfer carts to heavy-duty mold bottom cars.

III. Conclusion

Although the DRS Wheel Block is merely a supporting component within the heavy mechanical system of an ESR, it is directly tied to the operational safety and efficiency of the entire metallurgical production line. By adopting high-quality, heavy-duty steel cast wheel box systems, the long-term stable operation of ESR bottom cars and shifting mechanisms under harsh working conditions can be effectively guaranteed, providing a solid mechanical foundation for the production of high-quality specialty steels.