Displaying items by tag: crushing plant

US: National Cement Company of Alabama has reported that the new kiln line at its Ragland cement plant will reduce the plant’s CO₂ emissions by 40%. Its energy consumption will also fall by 30% as a result of the upgrade. The new line includes a 78m-high homogenisation silo, vertical crusher, five-stage preheater and automated clay storage system. AF used in the kiln will include waste tyres, woodchip and sawdust. The new kiln will help in the Ragland cement plant’s transition to 100% Portland limestone cement (PLC) production by 2023, further diminishing its carbon footprint.

Vicat CEO Guy Sidos said "Our ambition is to use AF in all our cement plants around the world. In addition to eliminating fossil fuel energy and replacing it with recycled regional waste, our investments contribute directly to local development. We are proud of the modernisation and transformation of our Ragland site, which was our very first acquisition outside France in 1974."

France: Germany-based ThyssenKrupp has won a contract for the installation of a new 4000t/day clinker line at Ciments Calcia’s Airvault cement plant in Poitou-Charentes. The supplier expects the new line to double the plant’s clinker capacity while also reducing its CO2 emissions. It is intended to replace the two existing lines at the site.

ThyssenKrupp will supply a 1200t/hr double-shaft hammer crusher, a longitudinal blending bed, a 370t/hr Quadropol QMR² 45/23 type vertical roller mill and a 10,000t tangential blending silo to process raw materials for the line. A single-string, five-stage Dopol type cyclone preheater with integral calciner will be supplied that is suitable to use with alternative fuels, with the possibility of conversion to oxyfuel in future. ThyssenKrupp plans to preassemble the preheater, reducing anticipated construction time ‘by several months.’ The plant also includes a Polytrack clinker cooler, a solid recovered fuel (SRF) preparation line and dedusting systems. Commissioning is scheduled for mid-2024.

No value for the project has been disclosed by Ciments Calcia or ThyssenKrupp. However, Ciments Calcia previously announced a proposed investment of Euro300m in January 2021.

Austria: W&P Zement has installed a Euro2.5m new raw materials processing plant at its Peggau quarry in Styria. The plant will introduce modern washing and sieving processes to operations at the quarry, with an additional sludge buffer for the processing of clayey material. Project manager and mining manager Jürgen Kolp said that the plant will improve the sustainability of the company’s raw materials extraction operations by increasing the limestone yield from excavated raw material.

US: Lehigh Cement Company, part of Heidelbergcement Group, has ordered a semi-mobile limestone crushing plant from Hazemag for its Union Bridge cement plant.

The plant will process up to 2500t/hour of limestone with a feed size of up to 2000mm. The material is discharged by means of a Hazemag apron feeder HAF 25160 from a 400t feed hopper. The fines in the feed material are screened at 100mm on a Hazemag roller screen HRS 2638.

The HAZEMAG primary impact crusher HPI 2230 crushes the material down to D99 < 125mm. The impact crusher is fitted with hydraulically adjustable impact aprons and grinding path that both retract in a controlled manner under excessive load. The system of the retractable grinding path is patented. The impact crusher HPI 2230 is also fitted with the automatic gap width control HAZtronic.

Indonesia: Hazemag & EPR has won a contract to supply a large crushing plant for a Sinoma International Engineering cement plant project on behalf of PT Cemindo Gemilang. The completed cement plant will have a production capacity of 10,000t/day and will be situated in Bayah, Java. Delivery of the plant is scheduled for the end of 2014.

The crushing plant to be supplied consists of a large apron feeder and a wobbler feeder for pre-screening. The impact crusher, with a rotor diameter of 2.5m and a rotor width of 3.0m, is the largest impact crusher that Hazemag produces. The crushing plant also includes a smaller apron feeder to allow two different raw materials to be processed at the same time. The crusher is equipped with a GSK-rotor and a hydraulic impact apron support system HAZtronic®. The total plant capacity is 2500t/hr.