Reversible secondary conveyor belt cleaners

Rugged DT2 carryback solution from Martin Engineering delivers fast, easy service and maintenance

MARTIN Engineering have introduced two rugged secondary conveyor belt cleaners, both engineered for fast and easy maintenance. The innovative design of the DT2S and DT2H reversible cleaners reduces system downtime and labour for clean-up or service, whilst helping to prolong the service life of other conveyor components.

Featuring a unique split-track blade cartridge that slides in and out on a stainless-steel mandrel, the cleaners can be serviced or replaced without stopping the belt when on-site safety approvals are in place.

‘Even when the cleaner is encrusted with material, one half of the split frame can be removed so the cartridge can be changed in just five minutes,’ said Dave Mueller, conveyor products manager at Martin Engineering.

‘This allows users to have a spare cartridge on hand and quickly change it out when the blades need replacement. Then they can take the used cartridge back to the shop, clean it, and change the blades so it’s ready for the next service.’

The DT2 secondary cleaners serve a wide variety of applications, ranging from mining, material processing, and quarrying, to cement production and other bulk material handling operations.

Both products significantly reduce material carryback and are engineered to accommodate reversing conveyors to avoid damage to the belt or splicing. With steel blades and tungsten carbide tips set into a flexible base, the DT2 cleaners offer simple, effective solutions that can solve several carryback-related problems.

Designed for particularly demanding conditions, the DT2H Reversing Cleaner XHD is suited to heavy material loads on belts ranging from 18in to 96in (400mm to 2,400mm) in width that operate at speeds up to 1,200 ft/m (6.1 m/s).

Carryback accumulations along the return run of the conveyor can occur when the cleaning systems fail to remove most of the material that adheres to the belt after unloading its cargo, resulting in unnecessary labour costs for clean-up and often leading to premature failure of conveyor components if left unchecked.

‘Carryback can have an extremely sticky texture and abrasive nature, which can muck up conveyor components and contribute to premature failure,’ said Mr Mueller.

‘One key to the success of these cleaners is the blade’s negative rake angle (less than 90°). With a negative angle, you get a ‘scraping’ action that mitigates potential belt damage, while delivering outstanding cleaning performance,’ he said.

Like its larger counterpart, the Martin DT2S reversing cleaner can be installed on belts ranging from 18in to 96in (400mm to 2,400mm) wide. Unlike the DT2H, however, the DT2S is designed for a lower maximum belt speed of 900 ft/min (4.6 m/s) on belts with vulcanized splices.

Mr Mueller pointed out that this is primarily due to the difference in applications: ‘The DT2S has a slim frame that allows it to fit in spaces as narrow as 7in (178mm). As a result, the DT2S can be attached to belts that may be too small for primary cleaners.’

Both DT2 cleaners can be used in medium-to-heavy-duty environments, minimizing fugitive material and providing a lasting solution to a diverse array of complex problems that are caused by carryback.