What Are the Key Points of Rolling Mill Hoisting?

When hoisting the rolling mill, it is necessary to pay attention to more problems.

First of all, for the single and multi stand arrangement of the rolling mill, in the supply, it is often used to separate parts supply. One of the biggest components is the rack, that is, the rolling mill housing.

Generally, the weight of a single piece of aluminum foil mill frame is about 30t to 50t, the height is 7 to 11m, and the width is 3.5 to 5m. The professional rolling mill manufacturer explained that because of the different structure of the rolling mill frame and the lifting capacity of the crane in the workshop, the lifting method used is different. In addition, the elevation of foundation facilities and other construction conditions shall be considered during hoisting.

At present, when lifting the rolling mill, the operation sequence is usually as follows: the first step is to lift the frame horizontally, then erect the frame vertically, and finally install the frame in place. In the hoisting procedure, it not only involves the formulation and selection of hoisting scheme, but also includes the preparation of hoisting operation before hoisting, trial hoisting and formal hoisting.

Next, let’s introduce the preparations that should be completed before lifting operations. For example, the single weight of a rolling mill stand is 32t, and a 25t and a 16t bridge crane are prepared at the construction site. Because a single crane can not meet the capacity of hoisting the rolling mill housing, it is necessary to adopt the method of double crane hoisting. At this time, the corresponding eccentric shoulder beam, lifting lug, etc. shall be prepared.

In order to ensure that the rolling mill can be hoisted in place, it is necessary to change the trolley of the two crown blocks, and then reset the crown block after the installation of the rolling mill frame.