Cooling device after coil rolling

Abstract

The invention discloses a novel rolled-valve-snail cooling device. The novel rolled-valve-snail cooling device comprises a machine frame, a water collecting pipe, a support and conveying rollers. The water collecting pipe is fixed through the support, four water distribution pipes A and four water distribution pipes B are arranged on the top face and the front lateral face of the water collecting pipe respectively, the four water distribution pipes A are communicated with an upper nozzle water pipe, and the four water distribution pipes B are communicated with a lower nozzle water pipe; fourteen water distribution pipes C are arranged on the upper nozzle water pipe, each water distribution pipe C is connected with an upper nozzle body through a pressing and buckling type rubber pipe, and a plurality of upper nozzles are evenly arranged on the lower face of each upper nozzle body; fourteen water distribution pipes D are arranged on the lower nozzle water pipe, each water distribution pipe D is connected with a water pipe in soft connection to the lower face of each lower nozzle body, and a plurality of lower nozzles are evenly arranged on the upper face of each lower nozzle body; the conveying rollers and the lower nozzle bodies are alternately arranged on the machine frame, and the upper nozzle bodies are arranged right above the lower nozzle bodies. The novel rolled-valve-snail cooling device is ingenious in structure and convenient to control, the product quality, the production efficiency and the cooling effect are greatly improved, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to steel rolling equipment, in particular to a cooling device after coil-screw rolling. Background technique [0002] At present, most of the high-speed wire rolling coils in China are cooled by air after passing through the laying machine. Form the situation of dense on both sides and sparse in the middle, so that the part of the coil located in the middle of the conveying roller table cools quickly, and the part on both sides cools slowly, and is transported to the next process by the conveying roller table. The lower part of the air is blown to the coil through the gap between the conveying rollers. Although the air volume distribution curve can be designed to be consistent with the wire density ratio curve, due to the above reasons, coupled with the wind lock that may be formed by part of the wind blowing on the adjacent conveying rollers , will inevitably lead to uneven cooling of the wire rod; due to the limited effect of a...

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Problems solved by technology

[0002] At present, most of the high-speed wire rolling coils in China are cooled by air after passing through the laying machine. Form the situation of dense on both sides and sparse in the middle, so that the part of the coil located in the middle of the conveying roller table cools quickly, and the part on both sides cools slowly, and is transported to the next process by the conveying roller table. The lower part of the air is blown to the coil through the gap between the conveying rollers. Although the air volume distribution curve can be designed to be consistent with the wire density ratio curve, due to the above reasons, coupled with the wind lock that may be formed by part of the wind blowing on the adjacent conveying rollers , will inevitably lead to uneven cooling of the wire rod; due to the limited effect of air cooling, this cooling method cannot meet the process requirements for some steel types that require high-speed cooling; because the coils are distributed in a spiral shape on the transport roller table, the coils overlap The density of the material at the point is higher, while the material density in the middle of the snails is lower. Therefore, the cooling rate at the overlapping points of the snails is slower than that at the middle of the snails. In this way, the cable obtained at the overlapping points of the snails Sorbitite is less than the sorbite obtained in the middle of the snail, which leads to the same circle difference in the strength of the snail (that is, the strength at the overlapping point of the snail is low, and the strength at the middle of the snail is high), resulting in the comprehensive performance of the produced snail. Unstable, high production cost

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