Let us talk about Basic conveyor safety as it is just like being around all moving equipment will be guards of one type or another. It may be to prevent people from falling into the equipment or, in cases where there is a danger of equipment failure, the guards may be designed to contain parts … Read more
The other switch I mentioned was a MISALIGNMENT switch. This is a manual swing arm that is placed beside the conveyor belt. If the belt should wander the arm will be struck pushing it out of position and shutting the conveyor down. In most mills the equipment is INTERLOCKED. This means that if one piece of … Read more
A Plugged Chute Detection Probe is an emergency switch that will shut down the equipment should a transfer chute “become plugged. There are two common types of probes, a TILT SWITCH and a CONDUCTIVITY switch. A tilt switch hangs inside the chute. If the chute plugs, the ore will build up to the switch. The … Read more
Belt Conveyor weightometers are required to accurately weight and chart the tonnage throughput. An operator is able to catch many problems that are developing simply by watching the tonnage. A drop or increase in tonnage can indicate something going wrong .within the system. MAGNETS, These capture what is known as “TRAMP METAL”. This is metal that … Read more
The transfer chute skirting is made from rubber and prevents rock from bouncing and rolling over the edge of the conveyor when it is loaded onto the belt. This skirt runs completely around the chute except for the discharge point at the front. As the skirt and the belt cannot have a lubrication put on … Read more
These liners have a high carbon content to give them the hardness required. This carbon makes welding these liners very difficult. For this reason the liners are bolted in place. As I mentioned earlier these bolts make excellent early warning indicators for worn-out liners. When the wear on the liner becomes great enough to wear … Read more
The first one to look at is a simple two belt conveyor system, the ore will come from a draw point. This could be a fine ore bin or a coarse ore stock pile. It is transported by the first conveyor to a transfer chute where it will be transferred to the second belt. The … Read more
The length of this second type of conveyor requires that a BEND PULLEY and a TAKE UP PULLEY he added to the return portion of the conveyor belt. The longer belts will have a greater expansion and retraction rate due to climatic temperature changes. As temperature climbs the belt will get longer. When it drops … Read more
If we look under the conveyor bed, we will find another set of changes. This area is called the CONVEYOR RETURN because the conveyor is returning for another load of ore. The idlers here are called RETURN IDLERS. The problems that they face are dirt and belt wander. The belt tracking will be taken care … Read more
Used in the troughing idler type as well as the next type we are going to discuss is the TRAINING IDLER the purpose of training idler is to keep the belt running straight. This is termed “TRACKING”. If a conveyor belt is tracking properly it is staying in the correct track. If it doesn’t it … Read more