Eight pairs of traveling water screens have been installed in new cooling tower systems for El Dorado Chemical. The rotating water screens, which are part of a refurbished production line for ammonium nitrate and sulfuric acid manufactured at the company’s El Dorado, Ark.-based plant, will help prevent cooling tower clogging. Cambridge EnTech, the environmental and energy products division of Cambridge Engineered Systems, Cambridge, Md., installed the filters.
Eight metal-mesh screen pairs — four per cooling tower — filter water and block debris that can back up pumps and heat exchangers that transport water during the cooling process. Each screen pair covers a 13' wide opening and is capable of filtering more than 20,000 gal/min of water. The screens rotate and force debris into a catch basin that is emptied periodically by plant personnel.