Abstract:

The low cost purchasing system for coal blending consists of coal property recording management system and coal purchasing optimization system. The coal property recording management system can carry out the recording, modification, computation of property parameters of all coals for coke making, obtain the average values of coal property parameters within different time periods and provide coal property parameters for coal purchasing system. The coal purchasing optimization system can obtain the minimum price purchasing proposal for coal blending that can meet the coke quality requirement and net price under all restricting conditions automatically by utilizing SOLVER planning and solving method, under the restricting conditions such as coal and coke quality predictions, net price of coal (coal price-byproduct price）, coal purchasing etc. so as to realize the long term controls of the high quality, stable production and minimum production cost of coke from the purchasing link.