Uniform mixing production process control method

Abstract

The invention discloses a uniform mixing production process control method, and belongs to the technical field of ore blending. The method provided by the invention comprises the following steps: 1, obtaining a tank adding amount a, an initial in-bin material amount m, a period end material amount n, a batching amount c, a batching rate r and a theoretical batching rate r0 within an adjustment period t in a uniform mixing process; 2, determining a relative error between quantitative feeding equipment and a hopper scale, and calculating an absolute error in a mixing period; 3, introducing metering data of a tank adding scale, and compensating and correcting errors of the quantitative feeding equipment; and 4, obtaining correction data, and adjusting the discharging process of the quantitative feeding equipment in each period. According to the invention, error correction is carried out on the data collected by the quantitative feeding equipment by introducing the metering data of the tank adding scale, so that the obtained feeding amount is closer to a real value, and the batching precision of the uniform mixing system is improved.

Description

technical field [0001] The invention relates to the technical field of ore blending, and more specifically, relates to a method for controlling a mixing production process. Background technique [0002] The mixing production process is generally equipped with three parts: feeding and adding tank system, intermediate storage bin, and batching system. Each part is equipped with corresponding metering equipment. At the same time, a static hopper scale is installed at the position of the intermediate storage bin, which is used to weigh the material balance in the intermediate storage bin. The batching system is equipped with quantitative feeding equipment, and a quantitative feeding scale is set on it to measure the amount of material distributed to the mixing tank. [0003] During the mixing process, it is necessary to control the proportion of the produced mixture by controlling the amount of material delivered to the mixing tank. Usually, when calculating the ratio, the spe...

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Problems solved by technology

[0006] In view of the large error between the data obtained by quantitative feeding equipment and the real data in the current mixing process, which easily leads to the problem of low quality or even scrapping of the produced mixture, the present invention utilizes the principle of measurement traceability, and establishes reference values ​​and error statistics and The recursive compensation method continuously ensures that the execution process is close to the planning process, so as to achieve the purpose of improving the accuracy of the entire mixing system

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