Rock Processing Control for Multiple Grain Grading Curves
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Solution Overview
Problem
Existing rock processing systems are limited to a single value grain grading curve and lack the ability to adjust multiple value grain grading curves effectively, leading to destabilization of the crushing process and compromised quality of the final grain product due to insufficient detection of oversize grain portions.
Innovation Solution
A rock processing system with at least two discharge conveyor apparatuses for different value grain grading curves, equipped with quantity sensors and a control unit that adjusts system components based on data relationships and artificial intelligence to manage multiple value grain grading curves within predetermined target tolerances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single value grain grading curve is used for rock processing, then the system is simpler to operate, but the system cannot effectively manage multiple value grain grading curves leading to process destabilization
Solution Approach 1:
The patent divides the material stream into multiple discrete value grain grading curves (first value grain, second value grain, etc.) with separate detection and control for each curve. This segmentation allows the system to handle multiple grading curves independently while maintaining overall system coordination through the control unit.
Solution Approach 2:
The control unit is designed with universal functionality to manage multiple value grain grading curves simultaneously. It integrates detection signals from multiple quantity sensors and coordinates multiple system components (crushing apparatus, screening apparatus, discharge conveyors) to handle different grading curves, making the system adaptable to various processing requirements.
2Device complexity
If the oversize grain portion is only estimated or calculated from the detected value grain portion, then the measurement system is simpler, but the detection precision of oversize grain portion is insufficient
Solution Approach 1:
The patent implements feedback by using a second quantity sensor to directly detect the oversize grain portion and feeding this detection signal back to the control unit. The control unit then uses this feedback information to adjust operating parameters of the crushing and screening apparatus, creating a closed-loop control system that continuously optimizes the process based on actual measurements.
3Productivity
If the focus is solely on maximizing the value grain portion, then the production efficiency is improved, but the quality of the final grain product is compromised due to insufficient support grain
Solution Approach 1:
The control unit receives detection signals from quantity sensors monitoring both value grain and oversize grain portions. Based on this feedback, it automatically adjusts operating parameters to maintain the optimal balance between value grain production and support grain availability, preventing quality degradation while maximizing productivity.
Data Source
AI summary
A rock processing system as disclosed herein includes at least one rock processing apparatus for crushing and/or sorting granular mineral material according to size, which comprises: a material feeding apparatus including a material buffer; at least one crushing apparatus; at least one screening apparatus; at least one conveyor apparatus; at least two discharge conveyor apparatuses; at least one quantity sensor for each of the at least two discharge conveyor apparatuses; a data memory (62) connected in signal-transmitting fashion to a control unit and/or to the quantity sensors for transmitting information. The control unit is designed to control an operation of at least one system component according to detection signals, which represent the discharge quantities accruing per unit of time in different value grain grading curves, and according to at least one data relationship stored in the data memory.