Reverse purging nozzle

Abstract

The invention relates to a reverse purging nozzle, which comprises a nozzle inner part, an end cover and a reverse purging nozzle body, wherein the reverse purging nozzle body is in the split type structure and divided into an upper part and a lower part, a clamp is mounted on the outer side of the reverse purging nozzle body, and the end cover is arranged outside the reverse purging nozzle body; and the nozzle inner part and the end cover are assembled for forming an annular air blowing hole. The reverse purging nozzle has the benefits that the reverse purging nozzle is in the split type structure and is divided into the upper part and the lower part, when in use, the upper and the lower parts can be interchanged, thereby being conductive to greatly saving production cost and time; the end part of the nozzle is outer convex, thereby being conductive to improving the purging efficiency; when a rolling part passes through the nozzle, compressed air is annularly sprayed from the inside of the nozzle onto the surface on the periphery of a wire along the rolling reverse direction, thereby preventing cooling water from flowing to the outside of a water tank, avoiding affecting the recovery of the temperature of the rolling part, preventing forming a low-temperature tissue on the surface of the rolling part due to excessive water cooling and upgrading the product quality.

Description

technical field [0001] The invention relates to high-speed wire rod processing technology, in particular to a reverse purge nozzle. Background technique [0002] Nozzles are designed to work under many different spray conditions, and their characteristics are mainly reflected in the spray type of the nozzle, that is, the shape formed by the liquid when it leaves the nozzle opening and its operating performance. Existing nozzles used for high-speed wire rods in various iron and steel companies require strict process control of wire rod quality, which is an important part of the most commonly used wire rod control cooling process; however, due to unreasonable structural design of some similar nozzles, there are high production costs , Difficulty in forming, and high probability of stacking steel, all of which directly lead to a reduction in production efficiency. Contents of the invention [0003] In view of the above defects, the purpose of the present invention is to prov...

AI Technical Summary

Problems solved by technology

Existing nozzles used for high-speed wire rods in various iron and steel companies require strict process control of wire rod quality, which is an important part of the most commonly used wire rod control cooling process; however, due to unreasonable structural design of some similar nozzles, there are high production costs , Difficulty in forming, high probability of stacking steel, all of which directly lead to the reduction of production efficiency

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