High-efficiency double-frame double-cutting line feed-through intermediate thickness slab production line and production method

An efficient straight through medium-heavy plate production line of double rack and double shearing line, characterized in comprising:

• a main rolling line, at least two shearing lines that are configured in parallel, and straightening stacking lines that are each configured in parallel outside each of the shearing lines, wherein one of the shearing lines is arranged in a straight-through relationship with the main rolling line, in which:
• the main rolling line comprises:
• a heating furnace, a high pressure water descaling machine, a fixed width press, a stand roller, a four-roll roughing mill, an intermediate cooling device, a four-roll finishing mill, an ACC accelerated cooling device, a hot straightening machine, 1# labeling device and a hot segmenting shear arranged along a steel rolling and delivery rolling way in order, and a 1# cooling bed, a 1# inspection stand, a 2# cooling bed and a 2# inspection stand are respectively arranged at two sides of the steel rolling and delivery rolling way;
• one of the shearing lines is arranged in a straight-through relationship with the steel rolling and delivery rolling way of the main rolling line;
• each of the shearing lines comprises a shearing and delivery rolling way, and an ultrasonic flaw detector, a crop shear, a bilateral shear, a 2# labeling device, a cut-to-length shear, a 3# labeling device and a pre-stacker are arranged long the shearing and delivery rolling way in order;
• and, a plate turnover machine is arranged between the shearing lines;
• the straightening stacking line comprises a straightening and delivery rolling way, and a cold straightening machine, a 4# labeling device and finished product collection stands at both sides of the straightening and delivery rolling way are arranged long the straightening and delivery rolling way in order;
• and
• a traverse stand is arranged between the shearing line and the straightening stacking line.