高压水除鳞装置工艺参数设计与应用

Process Parameter Design and Application of High Pressure Water Descaling Device

介绍了莱钢小型合金钢生产线高压水除鳞装置的工艺参数设计。高压水除鳞系统方案为柱塞式高压泵+变频器+除鳞阀+喷水装置,除鳞点设计为周期性间断式喷水除鳞方式,确定的除鳞水压为18MPa,水射流速度为188m/s,流量为38m3/h,根据钢坯规格不同设定2组除鳞环,分别12个喷头和10个喷头。温降校核表明,允许除鳞时间为10.3s(>3s的实际除鳞时间)。应用表明,系统运行稳定,除鳞效果好。

This article introduced the process parameter design of high pressure water descaling unit for Laiwu Steel＇ s small alloy steel production line. The system scheme was： plunger type high p^ssure pump ＋ frequency converter ＋ descaling valve ＋ water spraying device. The descaling mode was periodic and intermittent spray descaling. Determined descaling water pressure is 18 MPa and the water jet speed is 188 m/s. According to different specifications of steel billet, the sprayers of designed 2 groups of descaling ring are respectively 12 and 10. Temperature drop check showed that allowable descaling time was 10.3 s （is greater than the actual descaling time 3 s）. Application showed that the system is stable in operation, descaling effect is good.