Producers are discovering that there is more to professing their greenness than just manufacturing concrete that contains fly ash or slag. Many customers now ask tough questions about the production process itself and to what extent producers have eliminated waste and reduced their own carbon footprint.
At first glance, a producer may think these questions are intrusive and unimportant to selling a yard of concrete or a precast element. But a key tenet many Leadership in Energy and Environmental Design (LEED) followers and green designers hold is their commitment to reviewing the whole construction process, from raw material extraction to eventual reuse, when selecting a material.
Eliminating waste, controlling dust emissions, and custom-blending mixes to use waste materials are not new for many producers.
Several months ago, Cyclonaire Corp., a manufacturer of pneumatic conveying equipment, developed a program to help producers demonstrate just how eco-friendly these operating practices are. The company's 445 Technology classification helps identify products and processes which reduce air pollution, lessen noise exposure, eliminate harmful spills, and conserve energy with efficient material handling.
445 Technology refers to the maximum greenhouse emissions threshold in the atmosphere many leading conservationists have established. These experts predict that at 445 parts per million, emissions begin to pose a health risk, impair the economy, shift climate patterns, and harm the environment.
While Cyclonaire officials are aware that instituting the 445 Technology plan will not eliminate emissions issues, they also know that every effort counts. “Something as simple as eliminating dust in the air or conserving energy by designing smart systems with highly efficient components is at least a step in the right direction,” says Cyclonaire CEO Don Baker.
The manufacturer's goal is to alert producers that as they select components and systems that will improve the environment in their own facilities, they are contributing to the larger effort to protect our environment. Producers can use this information to educate customers, employees, and zoning officials on how new plant upgrades are improving the environment.
Some of the 445 Technology systems and components include:
- Self-contained bulk bag unloaders ensure clean unloading of any free-flowing dry bulk materials.
- Bulk Bag Fillers and Unloaders feature integral dust collection and rugged construction to eliminate contaminating spills.
- Blower Packages feature low-or medium-pressure blower air so operators can efficiently trim energy costs with pinpoint accuracy.
- An automated dust reclamation system conserves valuable material by capturing product dust from silo filling operations and returning it directly to the source silo.
Custom Powder Blending
One technology that has caught the attention of producers is a blend conveyor system that batches and blends fly ash with cement and slag. The CB Series System is fitted with multiple inlets that blend cement from different silos using programmed ratios by weight for high-batch accuracy. The unit uses reliable medium-pressure blower air and a proprietary venturi-vacuum load for the integral transfer vessel.
Load cells built into the CB Series Blender frame weigh ingredients as they are added. A touch-screen controller in a NEMA 4 enclosure monitors ingredient loading and adjusts the rate of flow to achieve the required ingredient weights.
When all of the ingredients have been added, the controller automatically initiates the cycle to mix the ingredients. It then cycles the unit to positive pressure for conveying the recipe to a further mixing operation.
Visitwww.cyclonaire.comand WOC booth #N770.