Handling of Abnormal Stop of Belt Conveyor
Material handling in mines accounts for a large proportion of total mining costs. As a result, conveyor systems have become a common solution to improve operational efficiency. The challenge is that conveyors often operate under extremely harsh conditions, such as: dirty environments, too high or too low temperatures, and high humidity. If not properly maintained, conveyors can experience rapid belt wear and component failure, resulting in downtime and repairs. This has a corresponding negative impact on both productivity and profits. Therefore, we must raise awareness of the most common problems with conveyors, and how to solve and prevent them in the future.
1. Belt misalignment
Problem: Belt misalignment occurs when the belt deviates from its required path. This is a serious problem that can lead to belt damage, equipment failure and material spillage. There are many reasons for belt deviation, such as insufficient belt tension, eccentric load, incorrect splicing, component deflection, material accumulation on components and components, etc.
Solution: The best solution is to find the root cause of belt misalignment to prevent the same problem in the future. A belt inspection can help identify any potential problems causing misalignment so that an appropriate solution can be developed. If the belt is slightly misaligned, the self-aligning idler can be used to correct the belt's trajectory and keep it running straight in the future.
Do you really know the 4 laws and 17 influencing factors of the deviation of the conveyor belt of the belt conveyor?
2. Material Return
Problem: When a small amount of material adheres to the belt, the conveyor will have a return movement. This can cause material to build up under the loading conveyor belt, or on idlers and drums. Certain materials, such as clay and certain ores, stick to the belt more easily than others. Although the return volume is very small, over a long period of time, there will be tons of materials accumulated, which has to be cleaned twice. Material carryback also creates safety and environmental hazards, increases cleanup costs, and often prevents conveyor systems from operating at their optimum level.
Solution: A simple solution is to install belt cleaners designed to prevent carryback. The benefits of a belt cleaner more than offset its upfront investment cost. Reduced material spillage saves maintenance costs and creates a safer work environment. In addition, clean belts prevent premature idler failure, extend belt life, and keep the system in top operating condition.
3. Belt damage
Problem: Belt damage can be caused by several factors, such as excessive impact force, misalignment, improper use of sealing systems or belt cleaners, component jamming, and rollers Not enough traction etc. Belts are the most expensive part of a conveyor, so it is imperative to find the underlying cause of belt problems and take proactive steps to avoid irreparable damage.
Solutions: There are many causes of belt damage and therefore many different solutions. For example, installing buffer rollers or brackets in the feeding area can disperse the impact of falling material, thereby reducing wear and tear on the belt. With a proper sealing system, the belt can be prevented from being damaged by stuck material. Using the proper roller wrap can increase friction and prevent belt slippage without damaging it quickly. These solutions all help to minimize maintenance downtime and are usually determined by a single belt inspection. Belt inspections can catch minor belt damage, preventing major failures in the future.
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