The development of mineral processing automation technology

Beneficiation automation technology since the 1940s to develop, has made significant progress, beneficiation technology has changed the traditional backwardness radically. According to the traditional beneficiation process, workers empirically adjusted manually control the production process is neither timely nor accurate, and therefore more difficult to get a good production targets, but working conditions are poor. Automatic detection can change the parameters of timely and accurate indication of beneficiation process; adjusted automatically according to the measurement results can be timely and accurate adjustment of the relevant variables, the application of these two automation technology to improve the beneficiation index, saves energy, improves working conditions. Recent development of mineral beneficiation automation technology to the process of considering various factors, along with the change in nature of the ore selected automatically changing the control of the variables that beneficiation indicators have reached the best value. Which contains the following main elements beneficiation automation: (1) broken system of continuous production line start-stop sequence of each device and interlock control; (2) the amount of processing ore crushing system automatically monitoring statistics; (3) the production workshop running water and electricity, and economic statistics; (4) the whole system, device status monitoring, fault alarm, historical trend display and PC monitor screen; (5) flotation process control strategies.

As one of the main production crusher mining equipment due to crusher has a crushing ratio, high output, low energy consumption, uniform particle size and other characteristics, access to a wide range of applications. In recent years, many domestic and foreign manufacturers from the product structure of this type of equipment constantly improve, improve, and achieved good results, and have launched a number of efficient, reliable, energy-efficient new products. In comparison, due to the impact of the level of automation development, research domestic crusher control is relatively backward. In recent decades, the number of foreign products, equipped with appropriate instrumentation and automatic control devices in equipment protection, stability operations, increase production has played a certain role. Automatic control system using cascade control, which greatly improved the dynamic quality of the system, give full play to the crusher processing capabilities. In addition, due to the stability of the broken condition, and ultimately improve the overall operating efficiency of the relevant processes associated with magnetic separation and screening. In the beneficiation process, grinding and classification work is an indispensable part of the process, the quality of their work status indicators on the beneficiation process, energy consumption and crucial impact on production costs, directly related to the production of mineral processing, quality grinding minerals, has a great influence on the index as a whole concentrator subsequent jobs economic and technical indicators. In order to fully exploit the inherent power of grinding and classification operations, seeking efficient and effective way, has very important significance test grinding and classification study of automatic control. Grinding and classification system has four major technical indicators: the amount of processing time ball station, grinding polarization size, grinding concentration and overflow concentration. In addition to the impact of these technical indicators ore nature, but also with mine water discharge, return sand water mill filling rate and other factors. Therefore, it is necessary for the implementation of grinding and classification system of automatic control, the aim is to improve the mill sales, stable overflow size grading, sorting operations for the overflow to provide qualified products. With the depletion of mineral resources and market increasingly fierce competition, how to make effective use of limited resources, improve market competitiveness, production process information, automation is our beneficiation enterprise reform, production and technical level the only way.