Patent RU-2268776-C1 (RU)
Title: Method of automated control over the ore mining and dressing production
Inventor: MALJAVIN BORIS JAKOVLEVICH
IPC: B03B13/00
Filed: 2004-05-26
Granted: 2006-01-27
Abstract: FIELD: ferrous metallurgy; nonferrous metallurgy; methods of automated control over ore mining and dressing production. 
     SUBSTANCE: the invention is pertaining to the field of ferrous and nonferrous metallurgy, in particular, to the method of automated control over ore mining and dressing production by means of the branched computer network. The technical result of the invention is an improved quality and effectiveness of the control. The method provides for a measurement within the preset time intervals of an electrical power consumption (PC) by equipment of the technological link (TL) of mining, TL of bucking and TL of iron-ore concentrate production per 1 ton of the product, mains voltage and determination of the correcting coefficient considering the effect of the mains voltage value. On the basis of statistical data for the equipment of the TL of mining, TL of ore bucking and TL of an iron-ore concentrate production considering mechanical and chemical properties of the raw material and the number of units of operating equipment they introduce in the controlling system the boundary parameters (BP) of acceptable values of PC used for production of 1 ton of the products at the fixed main voltage. At the stage of processing by the TL of mining the initial ore is weighted and averaged for bringing of the mechanical and chemical parameters to the preset boundary parameters for processing by the following technological links. At the stage of ore processing by TL of bucking they check the chemical composition and mechanical properties of an intermediate product. At a stage of processing of ore by TL of production of the iron-ore concentrate they determine amount of products of the preset chemical composition produced from 1 ton of the ore, For each link of TL fix the number of the equipment units operating in parallel. Then make a comparison of the power consumed by each TL for production of 1 ton of products with the boundary parameters acceptable PC values per 1 ton of the products for the data of the initial ore composition, parameters of the TL products and a quantity of the units of the equipment in parallel operating in composition of TL. Determine the value of deviations and multiply by the coefficient considering the effect of the mains voltage value. If the measured values of PC exceed at the indicated TLs preset boundary parameters (BP)of acceptable values of PC per 1 ton of the products fix the operating irregularity of the equipment of the particular TL. Analyze the dynamics of the gained deviations rise time and by the obtained results of the analysis determine the sequence and the volume of diagnosing of the particular unit of the TL equipment. After that step-by-step transfer the TL equipment in a diagnostic mode of operation, conduct its diagnosing and issue a command to change the mode of operation of the particular units of the TL equipment or to cease their operation. 
     EFFECT: the invention ensures an improved quality and effectiveness of the control. 
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