Compact wire and bar rolling production line

Abstract

The invention relates to a compact wire and bar rolling production line which sequentially comprises a heating furnace, a rough rolling unit, an intermediate rolling unit, a finish rolling unit and a collecting system. The collecting system comprises at least one of a cooling bed, a coiling and collecting system and a wire collecting system. The rough rolling unit, the intermediate rolling unit and the finish rolling unit are respectively provided with a Y-type three-roll rolling mill and an inverted Y-type three-roll rolling mill, and the Y-type three-roll rolling mills and the inverted Y-type three-roll rolling mills are distributed in an alternating mode. A rolling machine set adopts the three-roll rolling mills of the same structural mode, the rolling machine set is universal, a wire and bar collecting system can be flexibly distributed, and flexibility of wire rolling is high. A high-speed steel feeding system is arranged so as to increase rolling speed of the rolling machine set and improve production efficiency, the brake sliding distance between high-speed rolled workpieces is shortened, the rolling length is further shortened, and investment is reduced. An arranged wire reducing sizing rolling unit further rolls and produces wires, and facilitates improvement of rolling quality of the wires and size precision of products.

Description

technical field [0001] The invention relates to the field of iron and steel metallurgy, in particular to a compact wire and bar rolling production line. Background technique [0002] Wire and bar steel products are widely used in construction, machinery, metal products and other industries, and their production methods are generally produced by hot rolling, mainly composed of heating furnaces, rolling units, cooling beds, etc. However, in the existing hot-rolling production line, the rolling units generally adopt two-roll rolling mills arranged alternately horizontally and vertically. high. In addition, in order to improve production efficiency, it is often necessary to increase the rolling speed. In order to make the rolled high-speed bar rolls stop smoothly on the collecting cooling bed, it is often necessary to lengthen the sliding distance of the rolled pieces, so that the length of the rolling line is further increased. , The plant covers a large area and the investme...

AI Technical Summary

Problems solved by technology

However, in the existing hot-rolling production line, the rolling units generally adopt two-roll rolling mills arranged alternately horizontally and vertically. high

In addition, in order to improve production efficiency, it is often necessary to increase the rolling speed. In order to make the rolled high-speed bar rolls stop smoothly on the collecting cooling bed, it is often necessary to lengthen the sliding distance of the rolled pieces, so that the length of the rolling line is further increased. , the plant covers a large area and the investment cost is high

In the production of high-speed wire rods, it is necessary to use other structural types of two-roller wire rod finishing mills. The rolling lines for wire rods and bars cannot be used in common, and the flexibility of the rolling line is poor.

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