Conveyor efficiency, safety and productivity are critical components to any mining operations or bulk shipping terminal. Therefore conveyor belt mis-tracking or mis-alignment can be a major concern.
The problem, as shown in the pictures of the right, conventional training idlers are not effective. Some of the problems are; the side-guide rollers and exposed center pivot will seize, which can creates sever belt edge damage, the trainer in most cases is tied off in one direction therefore not allowing the trainer to actuate when need and lastly conventional tracking idlers will not work on reversing conveyor systems. On one particular reversing conveyor system the customer had a conveyor belt mis-alignment switch sending and alarm nearly every day.
After a complete survey of the conveying systems and the biggest problems were identified, it was recommended to the customer that they install ASGCO Tru-Trainer® series of conveyor belt tracking idlers approximately 20’-30’ (7m-10m) prior to any conveyor pulley. After the installation of the Tru-Trainers the customer has not had a single belt mis-alignment alarm on any conveyor that now has a Tru-Trainer; including the reversing conveyors.
The Tru-Trainer series of Conveyor Belt Tracking idlers employs a patented, unique highly effective tracking action, which in non-damaging to the conveyor belt and reacts immediately if the belt begins to steer off center. Because it does not rely on contact with the belt edge in order to guide the belt, belt edge damage which frequently occurs with conventional tracking systems, is avoided.
This copper mill facility was processing crushed ore the consistency of sand. They were using conventional guide roller trackers that kept failing. Due to the design of the guide rollers they continually came in contact with the belt’s edge which made them slow to react and caused premature “side wear” on the belt. The operators were prone to “tying the guide rolls off” which eliminated “the ability for it to train/align the belt.” Also, “build-up” of carry-back on the external pivot caused freeze-up (stop working) making it vulnerable to the elements of the harsh environment.
Install ASGCO 36” Troughing Tru-Trainer® prior to where the problem of miss alignment occurred on the “load-carrying side of the belt.” Conventional training devises utilize “guide rolls” that cause premature belt wear and are slow to react to belt miss tracking. At no time does the ASGCO Troughing Tru-Trainer wing’s contact the belt’s edge.
ASGCO Tru-Trainer Troughing Idler’s unique center roller does all the belt’s steering. It’s quicker to react than conventional trainers with guide rolls. The internal sealed pivot was protected from the harsh elements and fugitive build-up in the copper mill, which caused the other conventional guide roller pivots to “freeze up” and not perform. ASGCO’s Tru-Trainer Troughing Idler’s superior belt tracking performance is saving them money due to less spillage, less downtime and less belt wear.
This coal mine facility faced many challenges, as all bulk handling facilities do. Overcoming obstacles in improving the safety of their conveyor system was a top priority. These type of conveyor systems have tendency to mis-track causing the belt to cut into the hanging metal brackets holding the return roller in place. If and when the bracket gives way, the large return roller will be sent tumbling downward, creating a dangerous safety hazard.
After a thorough inspection of the conveyor it was pointed out that in addition to resolving the belt mis-tracking issue, there needed to be further changes made to ensure safety in the workplace and to comply with OSHA and MSHA requirements. It was recommended that they install ASGCO Safe-Guard Return Idler Cages to protect the return rollers and objects from falling, preventing injuries to workers and equipment.
ASGCO Safe-Guard Return Idler Cages were installed in the work areas and along the roadways to catch the return rollers if they fell. This brought the conveyors into compliance with MSHA title 30 regulations and helped the mine to reach its safety compliance goal! The customer was very pleased with the success.
ASGCO’s Impact Bed Cradles prevent large rocks, tramp metal, roof bolts and bucket teeth from stopping your operation!
ASGCO’s Impact Bed Cradles (patent pending) are designed to provide protection to your conveyor belt from impact damage. Our modular style impact beds provide protection for the conveyor belt, as well as a tool to help control spillage in the conveyor-loading zone. Our unique, semi-U-shaped design supports the conveyor belt across the entire width – eliminating any unsupported areas between the rollers or bars found on traditional impact idlers or traditional impact beds where typical damage can occur in the idler junction points. The Impact Bed Cradles consist of a heavy-duty frame with removable (Slide-in or Slide-out) sides with center sections for ease of installation and maintenance.
- Impact Bed Cradles - no pinch point or idler junction area utilizing our 17.5° bars for 35° idler systems; 10° degree bars for 20° idler systems and 22.5° degree bars for 45° idler systems.
- Absorbs Impact - with heavy-duty steel designed framework and our impact bars that are manufactured with absorbent, 40-durometer rubber that can really take the shock of large material.
- Modular Design - cradles can be manufactured in 2′ (600mm), 3’ (900mm), 4′ (1200mm) or 5′ (1500mm) long, depending upon the size of your material impact area.
Available in either Standard duty (1,000 ft/lbs of impact) or Mine duty (2,000 ft/lbs of impact).
Problem: A coal preparation plant that handles over 13,000,000 tons of coal per year, had several issues with spillage in the various conveyor load zones throughout the plant. The spillage was created from the belt not being properly supported (too much sag between idlers) where the coal was being loaded. Read more
A ready-mix plant had difficulty properly tracking the vital conveyor belt that feeds the mixer. The problem was essentially that the conveyor belt was difficult to keep in alignment, which caused serious belt edge damage, and in turn de-lamination and spillage in the conveyor load zone. Read more
Today’s aggregate industry is filled with challenges. Foremost, to produce enough aggregate for cement, asphalt and other products for homes, businesses, schools, hospitals, and infrastructures. Also, operators must address environmental responsibility concerns that dictate the use of best practices to protect both natural resources and future generations of citizens.