Press filter control system based on industrial field communication technology

Abstract

The invention provides a press filter control system based on the industrial field communication technology. The press filter control system is characterized in that a protocol module is inserted into a frame of a press filter PLC, and connected to an industrial exchanger through an Ethernet twisted-pair cable; an auxiliary system PLC and an OS station are respectively connected to the industrial exchanger through the Ethernet; a mine back valve is designed to be mounted on a process pipe line; a signal of an auxiliary device is sent to the press filter PLC through the auxiliary system PLC; meanwhile, another signal sent by the press filter PLC is sent to the auxiliary system PLC; according to a working process of press filters, the real-time control of the auxiliary device can be completed so as to reduce moisture content in finished ore, improve amount of ore discharge and realize the purposes of cyclic utilization of filter liquor in a feeding process of the press filters, and the efficient and safe transportation of finished ore. According to the press filter control system provided by the invention, problems that a wiring work amount is large, and the control process of an auxiliary system is simple, which is not conducive to reasonable optimization use of the press filters to the utmost extent in the prior art are solved.

Description

technical field [0001] The invention relates to a control system applied to a filter press workshop of a mineral processing plant, in particular to a filter press control system based on industrial field communication technology, which belongs to the field of industrial field bus technology and automatic control technology. Background technique [0002] As a mature dehydration equipment, the filter press is to transport the slurry to the filter chamber through the feeding pump, and use the pressure as the power to achieve solid-liquid separation and drying of the material by means of filter cloth filtration, and complete the collection of solid filter cake. . It can be seen that in its working process, the supporting pulp feeding system, filtrate water system, air system and concentrate conveying system are indispensable. Under normal circumstances, the filter press body cannot complete the filtration operation alone, and its control system must complete the control of the ...

AI Technical Summary

Problems solved by technology

It can be seen that as the number of required signals or filter presses increases, the amount of cable laying will increase significantly, which not only increases the probability of failure points, but also increases the input of manpower and material resources, and is not conducive to later maintenance.

When the number of filter presses is small, the signal of auxiliary equipment is usually sent to the control system of the filter press by means of electrical wiring, but when the number of filter presses reaches a certain scale and the output of the filter press workshop is large, the traditional method The amount of wiring work is large, and the control process of the auxiliary system is simple, which is not conducive to the rational optimization of the use of the filter press to the greatest extent.

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