1. furnace duty:
it is supplied for heating copper inget/slab.
2. Technical parameters and mechanical components
2.1 Main Technical Parameters
| No. |
Name |
Technical parameters |
| 1 |
Description |
Walking beam type copper/brass slab heater |
| 2 |
Material |
Copper ,brass,cupro-nickel alloy etc |
| 3 |
Slab size |
Thickness 160mm160mm
Width 400~420mm400~420mm
Length 3000~4600mm3000~4600mm
Standard Max. weight: 2.75t/piece/(160×420×4600mm)
2.75t/(160×420×4600mm) |
| 4 |
Heating capacity |
Minium 12t/h, 4slab/h(1slab:160×420×4600mm)
:12t/h 4/h(160×420×4600mm) |
| 5 |
Heating temperature |
730~750ºC±5ºC(max 850ºC) |
| 6 |
Hearth temperature
() |
800~900ºC |
| 7 |
Fuel |
Natural gas
LNG |
| 8 |
Heat value |
8900Kcal/ Nm3 |
| 9 |
Air preheating temperature |
250~450ºC |
| 10 |
Heat efficiency of the furnace |
≥45% |
| 11 |
Thermal control pattern |
Auto/ manual,impulse , remote control
,, |
| 12 |
Burner type |
Imported flat flame burners of Germany KROM schroder.
heating zone each burner:23 Nm3/h;soaking zone each burner:15 Nm3/h
KROM schroder.23 Nm3/h;15Nm3/h |
| 13 |
Number of burners |
Total: 18 PCS,heating zone:8PCS,
Soaking zone: 10 PCS
18,8,10 |
| 14 |
Rated burning capacity |
Max:334 Nm3/h
:334 Nm3/h |
| 15 |
Dimension of the hearth |
W5000×H1200×L8000mm
5000×1200×8000mm |
| 16 |
Loading capacity |
16slabs/batch×2.75t/piece=44t/batch
16/×2.75t/=44t/ |
| 17 |
Total length of furnace |
~11m
~11 |
| 18 |
Loading and unloading method |
End feeding and side discharge |
| 19 |
Loading pattern |
Single row,3 zones,preheating zone2.5m,heating
zone 3.5m,soaking zone 2m
,, 2.5m,3.5m,2.0m |
| 20 |
Vertical movement of walking
beams: |
Lifting: 90mm, 90mm
Lowering: 80mm 80mm |
| 21 |
Horizontal travel of walking beams: |
500mm |
| 22 |
Heat interchanger |
Hot tubular exchanger |
| 23 |
Heated up time |
~4 hours
~4 |
| 24 |
Quantity of heated up zone |
3 zones 4sections
34 |
| 25 |
Material and space |
Slab: W420mm; slab in furnace:16pcs;
Gap between slab and slab: 80mm;
Stroke : 500mm
420mm;16;80mm;500mm |
* Walking Beam Type Slab Heater Technical Data
| Parts Name |
Parameters |
Guarantee value
&precision value |
Remarks |
| Production
quality |
Slab tapping temperature contrast |
±5ºC |
|
| Slab full-length curvature |
≤5mm/m |
|
| Surface quality |
No scratches,
, |
|
| Loading
Device |
Loading speed |
7.5min/time
7.5min/ |
|
| Storing materials |
≥3 PCS |
|
| Length measuring bias |
±5mm |
|
| Width measuring bias |
±3mm |
|
| Charging positioning accuracy |
±5mm |
|
| Travel route measuring |
±5mm |
|
| Combustion system |
Hearth pressure control accuracy |
±10Pa
±10Pa |
|
| Furnace temperature control accuracy |
±5ºC |
|
| Furnace atmosphere
control accuracy |
Micro-oxidizing |
O2≤2% |
|
| Micro- reducibility |
CO:0~1% |
|
| Burner Life |
≥3 years |
|
| Walking beam
Device |
Total running deviation(cold)
() |
±20mm |
|
| Total running deviation(hot)
() |
±30mm |
|
| One walking beam precision |
±1.5mm |
|
| Furnace shell |
Furnace wall temperature |
Max 45ºC |
|
| Fiber refractory lining life |
≥5 years |
|
| Bottom furnace refractory life |
≥5 years |
|
| Unloading device |
Furnace door opening-close time |
7.5min/time |
|
| Heat
exchanger |
Air preheating temperature |
≥300ºC |
|
| Heat exchanger life |
≥3 years |
|
| Exchanger |
flue gas exit temperature |
≤450ºC |
|
| Cooling water |
Water seal yielding water temperature |
Max 60ºC |
|
| Others |
Furnace output |
≥ 12t/h |
|
| Sound from 1m from operating point
1 |
≤85db |
|
| Furnace thermal efficiency |
≥45% |
|
* Energy and Media Consumption::
| No. |
Item |
Consumption value |
Remarks |
| 1 |
Natural gas |
350Nm3/h |
Heat value: 8900Kcal/Nm3
8900Kcal/Nm3 |
| 2 |
Cycle water |
12m3/h |
|
| 3 |
Soft water |
4 m3/h |
|
| 4 |
Electric |
5KWh/t |
|
| 5 |
Nitrogen |
12 Nm3/time
12 Nm3/ |
|
| 6 |
Compressed air |
0.2 Nm3/time
0.2 Nm3/ |
