A Calculation Method for Consistency Correction of Particle Size Distribution Data in Crushing or Grinding Process

Abstract

The invention provides a calculation method for inspecting particle size distribution data consistency correction in an ore crushing or grinding process, and relates to the technical field of technological process data collaborative calculation. The method comprises the following steps: obtaining particle size distribution sieve analysis data of ore or ore pulp samples of each node of a process; and based on the material conservation principle of each grading device or confluence point in the process, as a preset constraint condition, taking the minimization of the sum of squares of deviationsbetween the to-be-corrected data of the content of each particle size of each node and the measured data as an objective function, and calculating to obtain an optimal solution, namely the correctedparticle size distribution of each node ore or ore pulp sample. Through the algorithm, particle size distribution data of all points meeting the material conservation principle at a sampling moment are obtained, and errors introduced in a sampling process, a screening process and the like are reduced to a certain extent; the obtained result is helpful for on-site technicians to judge the working condition of the process and give a next operation strategy. Calculation steps are clear and concise, additional correction steps are not needed, and programming implementation is facilitated.

Description

technical field [0001] The invention relates to the technical field of collaborative calculation of process data, in particular to a calculation method for consistency correction of particle size distribution data in crushing or grinding processes. Background technique [0002] Process inspection is a process research method to obtain ore or pulp samples at each node of the crushing or grinding process to obtain the concentration, particle size and other parameter information of the ore or pulp at each node. Process technicians often hope to obtain the flow rate, concentration, particle size and other parameters of each node by analyzing the crushing and grinding grading process, obtain the current operating status of the process, and then study the improvement space of the operation index. On the basis of achieving the target particle size of crushed ore grinding products, energy saving and consumption reduction in the production process can be realized and production tasks...

AI Technical Summary

Problems solved by technology

However, the crushing, grinding and grading process involves a lot of equipment, complex processes, unstable operation of the process, and the sampling, drying, and screening of the process inspection will introduce errors, making it difficult to maintain consistency in the process inspection data

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