Company Filing History:
2 out of 2 
1 out of 433 
Years Active: 1987
Title: The Innovative Contributions of Alexander Grisar
Introduction
Alexander Grisar is a notable inventor based in Mainz-Finthen, Germany. He has made significant contributions to the field of waste management and cement production through his innovative patents. With a total of 2 patents, Grisar's work focuses on improving processes for the disposal of combustible refuse.
Latest Patents
Grisar's latest patents include a process for the disposal of combustible refuses in the manufacture of cement clinker. This invention involves preheating and partly calcining the cement raw meal in a preheater, followed by burning in a rotary kiln and air cooling the clinker. The refuse is separately burned, and the heat from the flue gas is transferred to the cement raw meal. The process utilizes hot exhaust air from the clinker cooler to enhance the refuse incineration, producing flue gas at temperatures between 1000°C and 1400°C, which aids in calcining the cement raw meal.
Another significant patent is a method and apparatus for burning combustible waste materials, such as municipal refuse. This invention employs combustion in a rotary tubular kiln at temperatures exceeding 1200°C, using combustion air heated to a temperature range of 300°C to 800°C. The method includes heat transfer from hot flue gas into the combustion air through a heat-exchanging solid, which also helps in bonding noxious substances in the flue gas.
Career Highlights
Throughout his career, Alexander Grisar has worked with prominent companies, including Dyckerhoff Engineering GmbH and Klöckner-Humboldt-Deutz AG. His experience in these organizations has contributed to his expertise in the field of waste management and cement production.
Collaborations
Grisar has collaborated with notable coworkers, including Henning Deyhle and Albrecht Wolter. Their joint efforts have likely played a role in advancing the innovative projects they have undertaken.
Conclusion
Alexander Grisar's contributions to the field of waste management and cement production through his patents demonstrate his commitment to innovation. His work not only addresses environmental concerns but also enhances industrial processes.