Displaying items by tag: cooling

India: Prism Cement has taken delivery of a pendulum cooler supplied by Germany-based IKN at its Prism cement plant in Maharashtra. The new equipment will replace the 6.1Mt/yr plant's existing air beam technology cooler. The supplier says that this will help to improve the efficiency of waste heat recovery (WHR) processes at the plant.

Sweden: Germany-based KIMA Process Control has secured a contract for the supply of a kiln shell cooling system for Cementa's Slite cement plant in Gotland. 88 water jets will deliver centimetre-precision cooling for the 55m-long kiln, while IR pyrometers measure temperatures over areas of 10cm². According to KIMA Process Control, the equipment can avoid unnecessary cooling of the kiln shell, conserving the heat energy supplied by the main burner.

The new cooling system will eliminate the use of energy intensive electric fans, slashing 1700t/yr in CO₂ emissions, according to the supplier. It said that noise emissions will also 'drastically' decline as a result of the upgrade. The system's operating costs are reportedly 98% less than those of the plant's existing fan system.

The supplier said that the new equipment will 'bring the cement plant in Slite an economic benefit in the shortest possible time.' It said "For the cement industry, this project represents a new milestone in terms of best available technology in the operation of rotary kilns."

Austria/Canada: Canada-based Solex Thermal Science has been selected by Austria-based Cemtec for a mineral cooling project based in Central Europe. As part of the agreement, Solex will deliver a customised plate-based moving bed heat exchanger (MBHE) that will be used to indirectly cool a milled, mineral-based powder that’s similar to cement. The unit is expected to be delivered by the summer of 2022.

Solex says that the use of a welded plate-channel design allows the powder to flow by gravity within a vertically orientated exchanger and between banks of stainless-steel plates. A heat transfer fluid passes within the plates to cool the material by conduction. The use of indirect heat transfer technology, combined with customised plate spacing, provides the necessary residence time to eliminate caking within the unit while also ensuring consistent temperature profiles at the outlet.

“We are excited to bring our decades of thermal engineering experience to this collaboration with Cemtec,” said Gerald Marinitsch, Global Director, Industrials for Solex Thermal Science. “We are confident that our MBHE technology will provide a reliable, real-world solution to this unique and important cooling application.”

Cemtec is a specialist in providing wet and dry grinding technologies for many types of bulk materials and minerals including the cement sector. Solex Thermal Science develops indirect heat exchange technology for the heating, cooling and drying of free-flowing granular materials such as solid granules, pellets, beans, seeds and particles.