Environmental Engineering Reference
In-Depth Information
Fundamental specifications
Treating amount
Production ability
Temperature of heat-treating
Heating by type of radiant tubes
coil OD ID H
ton/h
Notes
[ ]-Data base for use
( )-Boundary condition
Furnace width
Furnace height
Furnace length
Space for exchanging RT
Width for oscillation operation
Size of tray
Treating amount/batch
Maximum and minimum
dimensions of treating materials
Roller for transfer
Circulation volume
Atmosphere gas
Strength of fan
Motor capacity
Driving equipment
Heat-input
Heating curve
Furnace configuration
Brick constitution
(Soaking degree)
Surface load
Cross-sectional load
Burner capacity
Recovery of
waste gas
FEEDBACK
CH
, ,
Data base
Calculation of
heat-balance
FIGURE 5.72
Flowchart for design of heat treatment furnace of radiant tube type.
Annual operation time
= 12 months × 25
days × 8 hours × operating time
70% = 3360 h
Annual production rate
= 600,000 pieces/year × single weight 50
kg/piece/annual operating time 3360 hours
= 892.86 kg/h
Capacity
= 900 kg/h
Search WWH ::
Custom Search