Displaying items by tag: testing

Taiwan: Asia Cement Corporation tested its waste wind turbine blade processing capacities using 12t of blades earlier in November 2023. The cement producer had previously processed 9t of waste turbine blades for use in its plants up to the end of October 2023. Asia Cement Corporation says that the waste consists of fibre-reinforced plastic (FRP), which is 60% silicon dioxide, calcium oxide and aluminium oxide and 40% polyester. The polyester can replace fossil fuels as alternative fuel (AF) for cement plants, while the other chemical compounds can serve as supplementary cementitious materials (SCMs).

Switzerland: Switzerland-based ABB is launching the ProKiln inlet gas sampling system to help cement producers reduce the volatility associated with using higher levels of alternative fuels (AF) and allow kilns to run for longer. The product offers probe cleaning with increased mechanical strength, which includes a dual probe retraction system to ensure no sampling interruption.

The supplier says that its product uses an extractive filter in the tip of the probe which separates sample gas from the dust load to reduce problems faced with scaling of material when gathering data. It also uses two air blasters to clean the tip to maintain a sample path for analysis. A three-dimensional printed stainless steel nozzle is intended to ensure that no blockages at the tip of the probe occur and the system is mounted on a buggy running on a retractor which carries the probe in and out of the kiln allowing it to be cleaned automatically. Measuring 3m long, the gas probe is water cooled with an extractive filter placed at the sample and flow is maintained by the blasters. A cooling system also provides recirculating water for temperature control.

The ProKiln has been tested for six months at Holcim’s Lägerdorf site in Germany, a cement plant that has an AF substitution rate of over 80%.

Germany: BHS-Sonthofen has upgraded its Sonthofen, Bavaria, testing centre. The supplier has installed new recycling systems for customers to test on different waste streams.

Director process development Steffen Hinderer “As a leading process consultant and mechanical process technology provider, it is our responsibility to develop all-in-one solutions with our customers that are perfectly adapted to their needs.” He added “Our test centre, which opened in Summer 2019, has already raised the bar in the areas of mixing, shredding, recycling, and filtering. Thanks to the expansion of the recycling and environment test division, our customers are able to test all their processes in this area even more comprehensibly in our facilities.”

Netherlands: N+P has reported the successful performance of Subcoal Pulverised Alternative Fuel (PAF) quality, a type of its refuse-derived fuel (RDF) pellet product, in a series of industrial tests at Mitsubishi Heavy Industries’ (MHI) Research and Innovation Centre. It says the fuel “achieved a stable flame” without support fuel on a 24MW burner. In the tests, Subcoal ground by a vertical roller mill to a fineness of 90% under 3mm, was fed using existing handling systems into the burner at a rate of 4t/hr. The Netherlands-based recycling company says this proves its suitability for 100% substitution of conventional fuels for industrial applications.

N+P has also introduced the PAF grade Subcoal product to some of its clients in the cement and lime sector. It intends to research how these producers can replace the last 10 - 40% of their fossil fuel load. The first trials are expected to be carried out from late 2020.