OREANDA-NEWS. March 05, 2011. MCC Baosteel Technology Services Co., Ltd. (BTS) announced that, the first furnace-construction tower for RH vacuum slot was independently developed by its subsidiary and successfully put into utilization recently, reported the press-centre of MCC.

This device will not only shorten the construction period of vacuum slot, but also improve the safety factor and mechanization level for masonry construction of refractory materials for oven wall of RH vacuum refining furnace.

As there has been no well-developed integrated movable masonry construction equipment with RH vacuum slot in China, now this achievement is deemed to be a breakthrough in this field.
Along with the mass production of large-silicon steel by Baosteel in recent years, there has been an increasing trend in treatment volume of refining steel. Limited by the productive process, the service life of vacuum slot is thus dramatically shortened, and the high pressure is caused for the turnover in production. Prior to the commissioning of this newly developed device, there were quite a few problems in disassembly and maintenance of inside-lining refractory materials of the vacuum slot. The worker had to stand in the suspension cage during the maintenance, therefore there was high risk of falling from height due to the loss of balance. In addition, the cordwood scaffold used to be utilized was of poor efficiency and not good for relieving of productive stress.

To cope with such inadequacies, the cordwood scaffold is replaced by hydraulic hoistable working platform for the furnace-construction tower. Through humanity design, the original devices for masonry, digging/repairing and controlling operations are integrated with perfect flexibility, which can be freely raised and lowered at any height and is featured by great convenience. Moreover, this tower is equipped with wireless remote controlled function and manual-regulation emergency system, which is essential to ensure the continuous and safe masonry operation.