High-pressure water dephosphorization machine

Abstract

The invention relates to a high-pressure water dephosphorization machine, and belongs to the technical field of mechanical equipment. The dephosphorization machine comprises a dephosphorization machine frame, and a conveying roller way, an upper dephosphorization header, a lower dephosphorization header, a water retaining chain, a water collecting tank and a protective cover body which are arranged on the dephosphorization machine frame. Through the rotation effect of an energy absorption sleeve, the service life of the water collecting tank is greatly prolonged, the phenomenon that oxide scales and dephosphorization water of the dephosphorization machine splash around is effectively avoided, and potential safety hazards are eliminated; and meanwhile, through the design of a flow guide pipe, most of the collected dephosphorization water does not flow onto steel billets, and the problem of temperature drop of the steel billets is solved.

Description

technical field [0001] The invention relates to a high-pressure water dephosphorization machine, which belongs to the technical field of mechanical equipment. Background technique [0002] The principle of phosphorus removal equipment on the hot rolling production line is to use high-pressure water (pressure up to 250MPa) to spray the surface of the rolled piece, and remove the oxide scale on the surface of the rolled piece through the striking force of the high-pressure water; the phosphorus removal system generally consists of a phosphorus removal pump station, a removal Phosphorus injection valve and on-site phosphorus removal machine; phosphorus removal machine is divided into two types: inside the frame and outside the frame according to the installation position, and the phosphorus removal machine outside the frame is mainly composed of upper and lower phosphorus removal headers, conveying rollers It is composed of road, water retaining chain and phosphorus removal sum...

AI Technical Summary

Problems solved by technology

[0003] The current dephosphorization machine has the following main disadvantages: 1. The designed water spray width of the dephosphorization header is greater than the maximum rolled piece width, and in most cases the water spray width is greater than the actual slab (strip) width , and the phosphorus removal valve is opened in advance and closed later, the high-pressure water sprayed upwards from the lower phosphorus removal header will directly hit the sump, especially on both sides of the sump, under the long-term scouring of the phosphorus removal water. The sink is easy to be damaged, and the degree of damage cannot be judged effectively in advance, causing phosphorus removal water to splash around, posing certain safety hazards

2. The water sprayed from the water nozzle at the edge of the header will have part of the dephosphorization water flow directly onto the steel slab under the action of the water collection tank. Excessive water volume will easily cause a large temperature on the surface of the slab (strip steel) drop

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