CNChina Factory OEM walking beam reheating furnace
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/ |
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