L245M hot-rolled coil plate roughing mill unit

Abstract

The invention discloses an L245M hot-rolled coil plate roughing mill unit, and belongs to the technical field of hot-rolled coil plate machining. The L245M hot-rolled coil plate roughing mill unit comprises a base, a roughing mill, a descaling box and a winding roller frame, wherein the roughing mill, the descaling box and the winding roller frame are mounted on the base in sequence from left to right; the descaling box is mounted on the right side surface of the roughing mill; a water storage tank is arranged below the descaling box, and communicates with the descaling box through a communicating pipe; the water storage tank is mounted in a groove formed in the upper surface of the base; a high-pressure pump pumps water in the water storage tank to enter the descaling box for descaling operation; impurities generated by descaling are doped in the water to enter the water storage tank by the communicating pipe, and are filtered by using a filter screen, so that the water can be recycled to prevent wastes; the surface of the filter screen can be cleaned by using a brush to prevent the blockage phenomenon of screen holes; a mounting plate is fixed by using a bolt a, so that the filter screen is convenient to disassemble, clean and maintain; and the L245M hot-rolled coil plate roughing mill unit is simple in structure and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of hot-rolled coil processing, and in particular relates to an L245M hot-rolled coil roughing unit. Background technique [0002] Rough rolling is a process of stacking several layers of steel plates and hot-rolling them into thin plates thinner than 2mm with a two-roll mill. Most hot-rolled thin steel plates are rolled by this method. There are two processes of rough rolling and finish rolling. It is carried out on a single two-roll mill, and then on two rolling mills respectively. There is also a three-roll Lauter mill for rough rolling, and the product is supplied to two two-roll mills for finish rolling. Hot-rolled coils are made of slabs. Raw material, after being heated, is made into strip steel by the rough rolling unit and the finishing rolling unit. The hot steel strip coming out of the last rolling mill of the finishing rolling is cooled to the set temperature by laminar flow, and rolled into steel...

AI Technical Summary

Problems solved by technology

[0003] Existing hot-rolled coils will be dephosphorized first when performing rough rolling operations on the roughing mill, and impurities generated by high-pressure water descaling are used for dephosphorization and are directly discharged into the water to cause pollution, and it is difficult to clean the water. Recycling, at the same time, it is easy to shift during the rolling and releasing process of the coiling roller, lacks a limiting structure for it, and the function is not perfect

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