Tilting Furnace Rocker Frame - Equipment & Technical Parameter Introduction

1. Equipment Overview

Core Functions

1. Full-weight bearing: Supports all loads including furnace shell, lining, conductive system and water cooling devices.
2. Controllable tilting: Hydraulic drive tilts the furnace forward and backward to discharge molten metal and slag.
3. Safety self-locking: Curved support surface limits position after reset to prevent furnace tipping under hydraulic failure.
4. Rigid buffering: Heavy-plate box welded structure resists alternating impact and high-temperature thermal deformation during smelting.

2. Overall Structural Composition

2.1 Main Load-bearing Rocker Frame

• Structural form: Integrated box-welded curved base + double-side curved support arc plates, fully penetration welding with Q355B high-strength low-alloy thick steel plates and internal reinforcing partitions. Segmented box bodies and bolt-reinforced connection structures can be seen in the picture.
• Curved support arc: Arc track on both sides rolls on base rollers to reduce tilting resistance.
• Lateral reinforcement: Vertical thickened connection plates and high-strength bolt-assembled modular segments for split transportation and on-site assembly.
• Bottom base: Integral rectangular box base, rigidly fixed to concrete foundation via embedded anchor bolts.

2.2 Matching Drive Components of the Complete System

1. Hydraulic tilting cylinders: Double-cylinder synchronous pushing, oil supply from high-pressure hydraulic station.
2. Support roller group: Fixed load-bearing rollers on foundation to carry rolling curved rocker frame.
3. Mechanical limit locking mechanism: Dual protection of hard mechanical limit and hydraulic self-locking valve.
4. Angle detection encoder: Real-time feedback of tilting angle for PLC speed regulation automatically.
5. Emergency support blocks: Mechanical stop blocks under zero position to eliminate tipping risk under pressure loss.

2.3 Two Mainstream Structural Types

1. (Model in the photo, mainstream for submerged arc furnaces)
   
   
   The furnace body rolls on support rollers along the rocker arc, featuring stable tilting and low impact, suitable for large-capacity submerged arc furnaces.
2. Eccentric Triangle Rocker Frame (Special for Ladle Shakers)
   
   
   Eccentric triangular structure driven by motor eccentricity, used for hot metal mixing and homogenization, focusing on stirring uniformity.

3. Standard Technical Parameters (General Specifications by Tonnage)

3.1 General Basic Parameters

3.2 Selection Parameters by Furnace Capacity

1. Small Submerged Arc Furnace Rocker Frame (3000~6300kVA)

• Total load capacity: ≤120t
• Arc plate thickness: 40mm
• Cylinder specification: Double cylinders Φ160/110 with 1200mm stroke
• Overall dimension: L6.2m × W3.8m × H1.6m

2. Medium-sized Submerged Arc Furnace Rocker Frame (12500~25000kVA, mainstream in market)

• Total load capacity: 200~380t
• Arc plate thickness: 60mm, double-layer reinforcing ribs inside box body
• Cylinder specification: Synchronous cylinders Φ200/140 with 1600mm stroke
• Max tilting angle 28°, equipped with independent emergency support base

3. Large DC Submerged Arc Furnace Rocker Frame (30000~45000kVA)

• Total load capacity: 400~600t
• Arc plate thickness 80mm, segmented bolt splicing structure (split type shown in photo)
• Four-cylinder synchronous balance drive, matched with large-flow hydraulic station
• Equipped with water-cooled heat insulation guard plates to resist long-time high temperature radiation

4. Core Equipment Advantages

1. High-rigidity Deformation-resistant Box Structure
   
   
   Dense internal partition ribs disperse smelting bending moment, avoiding deformation and cracking under long-term high temperature and heavy load. Lighter weight compared with solid cast steel parts, convenient for transportation and disassembly.
2. Segmented Modular Design
   
   
   Bolted segmented splicing as shown in the picture, large parts can be split for transportation to solve over-width & over-height shipping problems, fast on-site assembly.
3. Stable Low-impact Tilting
   
   
   Curved rolling friction instead of rigid rotating shaft, no jamming during tilting, small liquid level fluctuation during tapping to reduce molten metal splash loss.
4. Multi-layer Safety Protection
   
   
   Dual backup of hydraulic self-locking and mechanical stop blocks, preventing furnace tipping even if hydraulic pipe bursts or power cuts off.
5. Strong Automation Compatibility
   
   
   Matched with PLC control system, supporting remote and local operation modes, linkage with furnace front feeding and dust removal systems.

5. Applicable Smelting Working Conditions

1. Ferroalloy Industry: Tapping and slag discharging of silicomanganese, ferrochrome, ferrovanadium, ferromanganese and silicon submerged arc furnaces.
2. Non-ferrous Smelting: Tipping of yellow phosphorus furnaces, copper-nickel refining furnaces and hot slag furnaces.
3. Electric Arc Steelmaking: Slag skimming and tapping of small refining furnaces and scrap smelting furnaces.
4. Matching Ladle Hot Transfer: Eccentric rocker frame cooperates with ladle for molten iron homogenization stirring and hot material transfer.

6. Matching Auxiliary Equipment List

1. High-pressure hydraulic station (dual pumps, one for operation and one standby, air/water cooling heat dissipation)
2. Synchronous hydraulic cylinders + high-pressure hoses, explosion-proof connectors
3. Load-bearing roller base, embedded anchor bolt complete set
4. Angle sensor, operation console control cabinet
5. Mechanical limit stop blocks, heat insulation guard plates, lubrication system