Furnace for heat stabilization of long shafts

1. Shaft after treatment

Technical data

• length of shaft in furnace: 3 - 10m
• weight of shaft : 15 000/ 60 000kg
• min/max diameter : 450 / 2 000 mm
• max temperature in furnace : 700 °C
• accuracy of radial-out measurement : 0,005 mm
• min/max diameter of hubs : 350 / 950 mm
• min length of hubs (out of furnace): 900 mm

Equipment concepcion

• The equipment consists of:
  • the mechanic part used for supporting and rottating with shaft
  • the furnace modules used for heat stabilization
  • the measuring and controlling system, suppervisoring, logging ...
• The shaft is placed in the rolling mechanism
• Mechanical parts are adjustable in axis
• Shaft weight is caught by steady rests
• Shaft is axially arrested by means of tail-stocks
• The heat dilatation is compensated by means of a hydraulically-spring-loaded tail-stock
• The steady rests are adjustable in height, and also under load
• The steady rests are loaded together with the tail-stocks on the tracked carts
• The stability rotating furnace consists of separated modules according to the shaft length
• The furnace can be put together by the combination of the module lengths: from 3m to 10m / step of 1m
• The single modules are of cylindrical cross-section with tilting upper part
• The shaft is loaded into the equipment by means of a pair of hall cranes

2.Furnace closed, stabilization in progress, fixed side

3. View to the dilatation side and prolonging modules

4. Supporting and rotation system

5. Heating system + insulation - KANTHAL Fibrothal