Hanson UK has replaced quenched steel liners with ceramic inserts from Sandvik in a bid to improve the efficiency of the screening process at Ingleton quarry.
The company, a leading supplier of building materials to the construction industry and a part of HeidelbergCement, consulted Sandvik after steel wear protection plates were causing excessive noise and requiring replacement every 4 months. This regular replacement was a result of the heavy duty nature of the screening operation, which has a production rate of 250 tph and a material feed size of up to 200 mm. Sandvik replaced 30 mm steel backed rubber elements with WT9200 ceramic liners, which although they are only 27 mm thick, are able to withstand greater pressure. The Sandvik plates consist of ceramic bricks that are vulcanised into wear resistant rubber which reduce sound emissions.
Following the success of the ceramic liners in the primary screens feedbox, Hanson UK subsequently contracted Sandvik to install them in the discharge chute. Whereas the previous steel plates had to be changed every 3 months, the new ceramic liners have been in operation for over 12 months without requiring replacement, due to the high bond strength of the item.
Read the article online at: https://www.worldcement.com/europe-cis/16122011/ceramic_liners_increase_efficiency_at_hanson_uk_quarry/