THE SYSTEM ANALYSIS OF MULTIASSORTMENTAL MANUFACTURINGS OF PHOSPHORUS-CONTAINING PRODUCTS BASED ON CALS-TECHNOLOGIES
Systematic methods and tools for managing the complexity
Process Synthesis & Design (T4-1P)
Keywords: phosphorus-containing products, multi-assortimental manufacturings, CALS, system analysis, informational technologies
Multi-assortimental manufacturings phosphorus-containing products were examined. The first manufacturing consists of four products production by phosphoric slag processing. Four target products are examined during the investigation: sodium hipophosphite, sodium phosphite and lead hydrophosphite and phosphorous acid received at further processing. Second manufacturing is a multiassortmental six-products manufacturing of phosphoric acid of various qualifications.
For these schemes the system analysis at four levels of hierarchy is made: nomenclature level, productional-technological level, organizational-technological level and organizational-productional level. Three kinds of flexibility correspond to hierarchical structure: technological, structural and organizational.
The organizational-technological level’s attribute is a united compartment. Tasks: apparature optimization and production cycle minimization.
The organizational-productional level’s attribute is a separate workshop as a complex cybernetical system. Tasks: stabilization of material and informational flows between the united compartments; distribution of raw materials, energetical and human resources.
The productional-technological level’s attribute is a multiassortmental production. Tasks: optimal application of semiproducts and of common source materials; application of flexibility elements with the purpose of productional groups’ extension; the power varying of the technological process in common.
The greatest interest for us represents a nomenclature level. Its characteristic attributes: a product of one aspect or one technological stage. Primal problems: expansion of a set of qualifications on parallax purity of one product; a variation of power of a technological stage. The operation of the given level is ensured with technological flexibility, which is determined by ability on the available equipment to execute some technological problems at the expense of flexible technological methods of deriving of preset substances (under the nomenclature) or at insignificant expenditures on returning of the equipment (stopping on washing, recommunication of pipelines and other operations).
For system analysis and control information of phosphorus-containing products, there carried out the development of a software package, including standard output documents (GOST (State Standards of Russian Federation), TU (technical standards), protocols, certificates etc.). Development was carried out within frameworks of the most modern and perspective computer aided system - CALS-technologies (Computer-Aided Life Cycle Support). In the basis of the CALS concept there is a complex of uniform informational models, standardization of methods to access information and its correct interpretation according to international standards (ISO-10303 STEP). In our work, the CALS concept usage allows to accomplish effective analytical monitoring of a wide class of phosphorus-containing products, essentially reduce time of analytical research and to increase quality of performed scientific operations.
Grouping of input information in CALS-system is performed by following categories: analyzable substance;documentation; used method of the analysis. In each category there is a little subcategory for data systematization by criteria, by respective category. Thus, in a category "substance" the following groupings were included: liquid-phase - solid phase; organic - inorganic; acids - salt - oxides etc.
The support of EC Project ECOPHOS (contract № INCO-CT-2005-013359) is sincerely acknowledged
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Presented Tuesday 18, 13:30 to 17:00, in session Process Synthesis & Design (T4-1P).
