High speed no twist block mill for wire rod and tmt bar making plant
1.Function of steel rolling mill(finishing mill group) The finishing mill group is composed of top crossed 45° High-speed wire-rod finishing mills. The finishing mill group is located in high-speed wire-rod workshop. Through 10 unit rack the continuous micro-tension rolling mill will be transported upstream Æ 17 ~ Æ 21mm of rolling, rolling become Æ 5.5 ~ Æ 16mm finished wire. The working speed of 90m/s is insured. The specification of end product is Æ 5.5mm.
3. Equipment performance The form of mill: Cantilever roller loop mill The quantity of frame: ten (first~third frames are Æ200 mill,fourth~tenth frames are Æ150mill) Design method: top crossed 45°, ten frames concentrated transmission. Size of roll loop: Æ200 mill:(Æ210.5--Æ189.5)×Æ120.65×72mm Æ150 mill:(Æ158.8-Æ142.9)×Æ87.76×62mm Rolling force: Æ200 mill:152kN Æ150mill:107.8kN Rolling torque: Æ200 mill:2.86kNm Æ150 mill:1.61kNm Transmission motor: DC motor Power: 1600kW×three or 4500 kW AC inverter motor Rotating speed: 1000~1300 r/min Working speed: 900~1100r/min
Lubrication of the group: dilute oil concentration lubricated System oil pressure: 0.35~0.6MPa Consumption: 1500L/min Oil: Mobil 525 Cleanliness: 10m Cooling water of roll shaft water pressure: 0.6MPa Consumption: maximum is 10´30m3/hHydraulic pressure system of protective cover: Working pressure: 20MPa System flow: 35 l/min Composition of machine: Æ200 mills(three),Æ150mills(seven), guild fittings, speed increasing box, support base, flap, waterproof slot, buffer tank, the protective cover, couplings and pipework of finishing mill.