Holcim Project Intro

Holcim Project: 

Holcim Project David R. Munoz, Ph.D. Interim Director and Associate Professor Engineering Division

Need: 

Need To convert 200,000 tons (per year) of pulverized coal combustion to various alternative fuels in the rotary kiln at the Holcim Portland Plant.

Alternative Fuels: 

Alternative Fuels Shredded Tires. Shredded Carton Wastes (from large entities i.e. DIA, hospitals, malls, etc.). Chipped wood (forest refuse). Potentially bio-hazardous materials.

The Rotary Kiln Parameters: 

The Rotary Kiln Parameters 10 feet diameter, 400 feet long, rotating cylinder. Counter-flow heat exchanger. Combustion of fuel occurs at one end (T1=2200oC), cement product enters the other end after a preheating process (T2=1000oC). Product is heated to form clinkers with the desired chemical composition. Combustion exhaust goes to the stack, product goes to cooling and grinding process.

Rotary Kiln: 

Rotary Kiln

Rotary Kiln: 

Rotary Kiln

Rotary Kiln: 

Rotary Kiln

Design Goals: 

Design Goals Develop a system to accept various solid alternative fuels, Shred the fuels, Homogenize the fuels, and Transport the mixture to the rotary kiln for combustion.

Challenging Factors: 

Challenging Factors Large volumes: ~60,000 tons of each fuel per year, Transportation concerns to a remote location (Florence, CO, 35 miles south of Colorado Springs near highways 50 and 115), Utilization of existing 50,000 ft2 building for the materials handling operation, Strong environmental sensitivity.

Future Alternate Fuels Handling Facility: 

Future Alternate Fuels Handling Facility

Potential Team Organization: 

Potential Team Organization

Need Good Students: 

Need Good Students 8 – 10 Civil Option 8 – 10 Mechanical Option 4 – 5 Electrical Option 3 – 4 Environmental Option

Potential Sub-teams: 

Potential Sub-teams Transportation Shredding Materials Handling Fuel Materials Processing Plant Layout Bio-Hazardous Fuel Feasibility Team Environmental Impact

Potential Cross-Matrix Organization: 

Potential Cross-Matrix Organization Disciplinary utilization on various teams

Questions?: 

Questions?