Modern Quarrying Q1 2022

AUTHOR: LARS BRÄUNLING

Choosing the right screen media for an operation is critical to producing the highest throughput. But perhaps equally important is the way in which the screen media is installed. Proper installation, which includes accurate tightening, can make all the difference when it comes to prolonging the life of the screen. By Lars Bräunling, MAJOR director of product technology. SCREEN MEDIA INSTALLATION THE IMPORTANCE OF PROPER TRAINING ON

SCREEN MEDIA

M anufacturers often offer installation guides, which should be followed closely. While specifics depend on the type of media, there are some general tips that apply to most. By following correct procedures and training, employees can ensure an efficient, secure and safe operation. Here is how. Before starting installation Employees who are installing screen media should be refreshed on the basics of screen maintenance and care. Start by inspecting the condition of all vibrating screen components and replace if necessary. Check for worn crown bars, bent clamping rails and weak or broken coil and leaf springs. Examine the machine for cracks, broken welds or loose bolts. Any issues should be repaired before proceeding with the screen media installation. Lastly, clean the decks properly, including side rails and support bars.

KEY TAKEAWAYS

Employees who are installing screen media should be refreshed on the basics of screen maintenance and care. Start by inspecting the condition of all vibrating screen components and replace if necessary

Installers should replace the crown bar rubber with each new set of screens. If the crown bar rubber isn’t installed with each new set of screens, it won’t sit properly on the crown bar and will cause the cloth to break

Installers should perform a string test to ensure that the screen will touch each support bar, by running a string from sideplate to sideplate over the crown bars

Screen installation should never be done alone. Always ensure that more than one worker is involved in the process. Make sure workers follow safety procedures – especially while working at heights – and wear proper PPE

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MODERN QUARRYING QUARTER 1 - 2022