China Walking-beam Atmosphere Controllable Heating Furnace

Equipment features and description of working process:
It is mainly designed for heating of copper, copper alloy in controllable atmosphere before rolling. This production line adopts the most advanced and reliable atmosphere control technique. The whole working procedure can be automatically controlled; It saves investigation cost, with high thermal efficiency, reliable and safety operation.
Installation level and Main Characteristics:
To save energy, reduce heat loss, it adopts one end loading and the other end unloading method, furnace door will need not to be frequently opened during production.
The proper and reliable hydraulic system ensures slab can be evenly and smoothly transferred in side of furnace chamber, no sliding and no scratch; The advanced positioning devices and aligning devices can make sure that slab can exactly positioned and delivered to rolling machine.
High quality imported combustion device and perfect control system ensure temperature can be automatically controlled; The double-cross limit controller ensures air-gas ratio is automatically regulated, and atmosphere inside of furnace chamber is adjusted.
Each heating zone can be individually controlled with help of analyzer and industrial PC. Inner atmosphere can be regulated as micro-reducing atmosphere, neutral atmosphere, and micro-oxidizing atmosphere.
To meet requirement of small batch of workpieces to be suitable to heated in the furnace, working process can be modified or re-set at any time.
The "soften loading" function ensures surface of slab remain in good condition.
To improve surface quality of slab flow rate inside of furnace chamber can be regulated. Burner can be controlled automatically or remote manually controlled.
The "stepping" function ensures slab can be uniformly heated.
Proper history records function.
The working process parameter and temperature curves are recorded and stored in the industrial PC.
Slab numbers will be automatically calculated in the control system.
Alarm history will be stored for operator analyzing and management.

No. CodeSlab Size (mm)Annual productivity Pieces ( % )Annual Productivity (t)1C10100
C10200230x620x800040120, 0002C11000230x620x80002060, 0003C19200230x620x80002060, 0004C19400230x620x80001545, 0005C70250230x620x8000515, 000Total amount 100300, 000Remarks: Copper slab with thickness 170~ 230mm, length 4800 ~ 8000mm can be heated in this walking beam furnace.No. ItemTechnical Data1Name of equipmentWalking-beam re-heating furnace2Name of WorkpiecesCopper slab and copper alloy slab3Specification of Copper Slab230mm x ( 400 ~ 650 ) mmx 8000mm;
230mm x ( 400 ~ 650 ) mmx 4800mm;
210mm x ( 400 ~ 650 ) mmx 7200mm
( 230mm x 620mm x 6600mm )4Production RateMaximum: 60t/h 6pieces/h5Slab Temperature800 ~ 1050 ± 56Temperature of Furnace ChamberMaximum 11507FuelCity Gas8Calorific Volume3500 ~ 3800Kcal/Nm 39Calculated Calorific Volume3600Kcal/Nm 310Pre-heated air temperature250 -400 ( during normal working time )11Thermal efficiency≥60%12Thermal Control MethodBurner flame is remote, automatic, and continuously controlled. 13Burner TypeFlat Flame Burner + Long Flame Burner14Burner NumbersTotal 55 pieces, heating section: 35pieces, soaking section 20 pieces. 15Rated Combustion rateMaximum: 6000 Nm 3 /h16Chamber DimensionWidth 9000x Height 1100(600)x Length 16800mm17Loading capacitySlab quantity:
21PCS/batchx10t/piece=210t/ batch18Total Length of furnace bodyabout 27.6meters18Feeding & discharging methodSide feeding and side discharging19Loading MethodSingle Row, centralized in middle position20Stroke distance of Movable beamUpward move: 90mm,
Downward move: 80mm21Horizontal moving distance of movable beam800mm or 400mm x2 ( it shall be negotiated with buyer )22Heat Exchanger ModelTube type ( direct cross and counter current )23Heating Timeabout 3.5 hours24Temperature control Zones9 zones

Main technical parameter of feeding table:

No. ItemParameterSmall walking beam feeding table1Overall Size7830x60002Working Height800mm3Fixed frame Beam5 pieces4Movable frame Beam4 pieces5Feeding Width of Over-head Crane900mm6Maximum Lifting Height of Movable Beam300mm7Maximum Horizontal Moving Distance800mm8Motor Power of Hydraulic Pump18.5Kwx(1+1)9Motor Power of Circulating Pump5.5Kw10Horizontal Moving CylinderΦ100 -450mm11Lifting CylinderΦ140 -950mmAlignment Device (Centralizing Device )12Cylinder Number2 pieces13Cylinder SpecificationQGB-160x40014Working Pressure0.5 ~ 0.7MPaMeasurement Roller Table15Length of Roller Table8330mm16Width of Roller Table (length of motor is not included)1080mm17Working Height1000mm18Driving Roller Number8 Pieces19Driven Roller number9 pieces20Motor Power of Roller Conveyor2.2KwFront Roller Table21Length of Roller Table1830mm22Width of Roller Table (Motor length is not included1080mm23Working Height1000mm24Driving Roller Number225Driven Roller Number226Motor Power of Roller Conveyor2.2Kw