Roller type continued bright steel pipe and tube annealing furnace annealer
Description
The theory is to anneal the cold rolling steel coil including heating, warm keeping, cooling under the protective atmosphere, the purpose is eliminating the coil surface hardening anda residual stress, improving toughness, achieving light surface and uniform hardness.
Technical parameters
No. | Parameter | Value |
1 | Coil OD（max.） | 34"（￠865mm） |
2 | Coil height（max.） | 20"（510mm） |
3 | Inner cover dia. | ￠1000mm |
5 | Protective gas | hydrogen + nitrogen |
6 | Heating temperature | 800℃ |
7 | Rated working temp of heating cover | 950℃ |
8 | Rated working temp of inner cover | 800℃ |
9 | Effective loading dia. | ￠900mm |
10 | Effective loading height | 2100mm |
11 | Furnace temp uniformity | ±5℃ |
12 | Temp control precision | ±1.5℃ |
13 | Shell surface temp rise | ≤ ambient temp +35℃ |
LPG | ||
14 | Heating value | 8400Kcal/Nm3 |
15 | Working pressure | 8000Pa |
16 | CH4 | 95-98% |
17 | H2S | ≤3.8% |
Electric | ||
18 | Voltage | 3 phase, 380V±5%, 50Hz |
19 | Furnace stage fan | 22KW×2 |
20 | Combustion fan | 7.5KW |
21 | Cooling cover fan | 2.2KW×3 |
22 | Forvacuum power | 3KW |
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