Cement Production at Deva Cement Factory from Romania
This paper describes the experiences relating to the modernization of the production process and environmental protection at Deva Cement Factory, Carpatcement Holding S.A. The production process, equipments and installations improvement was considered. Besides the technological flow modernization measures, the company adopted certain solutions for improving the performances linked to the technological process automation and optimal control. A local control in each particular operation and an optimum control of entire plant are enforced. The technological flow on-line simulation and control through specific software in order to get optimal process parameters represent possibilities of improving the performances.
Automation of Cement Industries
The cement industry is growing rapidly on account of the overall development of the Indian economy resulting into increased civil constructions activity due to expanding investment in the infrastructures. The cement industry experienced a complete shift in the technology of production from wet process to dry process. The automations are not only cost effective method but also improve the longevity and reduce the total cost of operation over the life of the system. The focus of this paper is to discuss automation process and hardware for cement plant.
Heat Recovery Systems
Geothermal energy is recovered from an underground zone of relatively hot strata via a borehole into which is inserted a heat pipe system containing a working fluid, the heat pipe system comprising an assembly of two tubes in concentric relation, the inner tube being constituted by a relatively small diameter capillary for the return of working fluid to the vicinity of the zone of the relatively hot strata. The working fluid is preferably assisted in its return under gravity by means of a pump. The system includes heat exchange means operable to recover thermal energy from the working fluid. A third and outermost tube may be used to reduce heat losses, this third tube enclosing the two tubes over all but that part of their length which is in the zone of relatively hot strata.