System and method for cleaning and drying stains on surface of metal wire strip

Abstract

The invention relates to a system and method for cleaning stains on the surface of a metal wire strip and drying the metal wire strip with warm air. Comprising a drying bin, a flushing bin, a cleaning liquid filtering and residue collecting device, a water supply pipeline, a water liquid collecting and circulating box, an adjustable water jet booster pump, a wire strip, a water pressure detection device, a dip angle adjustable nozzle, an air wall generating device, an air pressure and temperature detection device, an air heating device, an air pressurizing device and an air filter. The method comprises the following steps: firstly, determining a maximum incident angle according to water jet flow and pressure at a nozzle opening and critical flushing pressure of an adhesion object by combining a known formula; then, the effective cleaning width and length of the high-pressure water jet are determined according to the incident angle of the water jet and the critical pressure of the adhesion object; and finally, the flushing and drying system is started, cleaning and drying of stains on the surfaces of the metal wire strips are achieved, the same set of equipment can meet the cleaning and drying requirements of various special-shaped section wire strips such as circular strips, rectangular strips and the like, and the advantages of being simple in structure, low in energy consumption, high in efficiency and the like are achieved.

Description

technical field [0001] The invention belongs to the field of high-pressure water jet cleaning and warm air drying, and in particular relates to a system and method for cleaning stains on the surface of metal wire strips and warm air drying. Background technique [0002] After hot rolling, wire drawing, water cooling, crimping, cutting head and tail, and antirust treatment, a thin layer of oil film will appear on the surface of the wire strip due to lubricating oil, and some small particles will inevitably stick to it during transportation. Sand, gravel or other small solid particle adherents, if these oil stains and adherents are not removed, will damage the surface of high-precision molds and wire strips in the subsequent plastic processing process, and ultimately affect product quality. At the same time, removing oil stains and adherents can avoid affecting the subsequent heat treatment process. Therefore, removing oil stains and small solid particles on the surface of wir...

AI Technical Summary

Problems solved by technology

However, there are still many deficiencies in this method: 1) Due to the different adhesion of different adherents to the wire strip, the required critical flushing pressure is also different. According to relevant literature, the critical flushing pressure of oil stains is 20-30MPa, and the critical flushing pressure of oil dirt is 20-30MPa. The critical flushing pressure is 3-6MPa, and the critical flushing pressure for surface dust is 0.8-1.2MPa. If the pressure is too high, energy will be wasted. If the pressure is too low, it will lead to insufficient cleaning.

2) The incident angle of the high-pressure water jet is not clear, which will lead to changes in the cleaning target distance, which directly affects the surface flushing pressure and effective flushing width of the wire strip. The larger the incident angle, the larger the target distance, and the smaller the flushing pressure of the strip. , even less than the critical flushing pressure; the smaller the incident angle, the larger the splash will be, making the adherents stick to the surface again

3) The spatial distance between two adjacent nozzles is not clear. To clean the entire surface of the wire strip, at least four nozzles are required. If the distance between two adjacent nozzles is too close, it will cause mutual interference in the effective flushing width and reduce the flushing efficiency. , if the distance between two adjacent nozzles is too far, it will increase the volume of the flushing system, increase the cost and reduce the flexibility of the system

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