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Barite Grinding Plant

Barite Grinding Plant

How to avoid damage to the roller

Barite Grinding Plant is one of the common vertical grinding equipments, used for coarse or medium crushing of materials. It is suitable for cement, mining, metallurgy, coal mine and other brittle materials with a compressive strength & 160 MPa. Large particle size and adjustable and controllable grain size, especially in the coal industry, the use of this machine to grind raw coal, as long as the iron removal, impurity removal, no need to remove the sputum, can be directly milled, milled materials Uniform particle size and low excessive crushing rate simplify the coal preparation process and reduce investment and production costs. However, in the grinding process of the Barite Grinding Plant, the vertical grinding roller is easily damaged. Therefore, in order to save costs, it is necessary to pay attention to the repair of the vertical grinding roller. Let’s take a look at the high-tech of the Shibang machine!

First, the ground surfacing method

Ground surfacing is done by welding at the worn notch. This method is simple and practical, does not affect the production, and has good hardness and wear resistance to the welded part. The disadvantage is that it is only suitable for rollers with good weldability (such as cast steel rolls). Pay attention to the following matters during surfacing:

  • 1. Select small-diameter surfacing rods, small current welding specifications, and stratified surfacing. This reduces thermal stress and avoids severe deformation and cracking.
  • 2. The grounding of the electric welding machine should be placed directly on the roller, not on the shaft, so as to prevent current from flowing through the rolling bearing and generating sparks, so that the surface of the rolling body and the raceway of the Barite Grinding Plant bearing is burnt. In addition, it is also possible to use the post-removal repair method, which is to completely disassemble the roller shaft together, and after being repaired by turning, it is installed on the machine.
  • 3. During the surfacing process, the surfacing part should be inspected frequently with a straight-line model to ensure that the dimensions are qualified.

Second, the ground cutting method

The ground cutting (grinding) processing method is to install a special tool holder on the frame of the Barite Grinding Plant, and the moving path should be parallel to the axis of the roller. When the repair is started, the vertical mill is started, and the roller is cut by a manual feed mechanism (conditional automatic feed mechanism can also be used). The following points should be noted when applying this method:

  • 1. Control the movement speed of the roller. The line speed of the surface of the roller should not exceed the allowable cutting speed of the cutting tool, otherwise the speed reduction measures should be taken to avoid damage to the tool.
  • 2. For high-hardness rolls, the cutting cannot be processed. At this time, the grinding head can be used for grinding according to the cutting method.
  • 3. The trajectory of the tool holder is parallel to the axis of the roller to avoid taper after cutting and affect the grinding effect.

The hardness of the ore and rock milled by the Barite Grinding Plant is generally high, and the wear of the machine is severe when working for a long time. The equipment needs to be inspected and maintained regularly, and faults or damages are repaired in time. Shanghai Shibang Machine Barite Grinding Plant has a superior geographical position and convenient transportation. More investors are welcome to visit the factory.

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