2hi Irreversible Hot Rolling Mill (GH250)

1. Introduction
Blank: Continuous casting 60mm × 60 mm maximum length
1800mm, 50 kg / PCS
End product: Φ 10 ~ 24 round steel or deformed bar, length
9000-11 000 mm ^^ the mill is 250 × 4 transverse rolling mill,
Rolling line speed: 2.6 ~ 3 m / s
Product solution
2.1 type of steel and end product specification:
Steel type: Carbon construction steel \ high-quality carbon
Construction steel and low-alloy steel.
End product specification: 10 \ 12 ~ 24 round steel or
Deformed bar.

2.2 productive technology:
Qualified billet _ heat ( ~ 1200 ) _Φ 250 × 4 open-train rolling
Mill _ cut to length _ packing.
Unit equipment \ technical l parameter \ weight and price:
3.1 furnace delivery table 2 group 1.8 × 2=3.6 t
4 00 00RMB
Roller parameter: 140 × 200 mm roller spacing 350 mm × 12=4.2 m
Electrical machine: AC 3KW 2 set
3.2 Φ 250 × 4 open-train rolling mill 1 unit 34 t
54 0000RMB.

1) Main motor: JR500L3-8 400KW 1 set 2910 kg flywheel: Flywheel diameter Φ 1400 mm 1 unit
2) ZD70 reducer 1 set center distance A=700 mmspeed ratio I=3.6
3) 250 three axis gear box 1 set center distance A=25 0
Mm speed ratio I=1
4) 250 3hi rolling mill 1 set roller material: 70Mn2
Roll surface length 700 mm
5) 250 3hi rolling mill 2 set roller material: Cr-Mo
Infinite cold hard, roller surface length 600 mm
6) 250 2hi bearing roll system mill 1 set
Roller material: Middle Ni, Cr, Mo infinite cold hard, roller surface
Length 500 mm.

3.3 after-machine roller table 1 set 3.5 t
4 0 000RMB Roller parameter: Φ 140 × 400 mm roller
Spacing 500 mm × 12=6 m electrical machine: AC 4KW 1 set
3.4 roll gang 8 group 2.0 t × 8 = 16 t 180 000RMB
Roller parameter: Φ 140 × 200 mm roller spacing 500 mm × 12=6 m
Electrical machine: AC 3KW 10 set
27 m × 3 m simple cooling bed feed preparation including
Pacing machine rack 5 t 50 000RMB
1) thickness 10 mm steel plate 60 m 4710 kg
2) 10# channel steel 300 m 3000 kg
3) 5# angle iron 580 m 2186kg.