Intelligent start-stop control system for coal washing plant

Abstract

The invention discloses an intelligent start and stop control system for a coal washery, and relates to the technical field of coal washing equipment. The system is characterized in that the system at least comprises one programmable controller for controlling the operation of the coal washing equipment; the coal washing equipment comprises a plurality of start vehicles; an I / O port of the programmable controller is electrically connected with an enabling terminal of each start vehicle through a frequency converter; the system also comprises a data storage module which is used for storing various types of start vehicle schemes, the parameters of each start vehicle, and the start and stop rules; the system also comprises a hand-held terminal for achieving man-machine interaction; the hand-held terminal comprises a start vehicle selection module, a scheme selection module, and a parameter input module; the system also comprises a background logic module which is used for reading the data in the data storage module according to an instruction of the hand-held terminal and sending a control instruction to the programmable controller through logic calculation. The system can achieve the timely obtaining of the state of each start vehicle through the hand-held terminal, can control the working state of each start vehicle through the hand-held terminal at the same time, and achieves the coordinative operation of the start vehicles.

Description

technical field [0001] The invention relates to the technical field of coal washing equipment, in particular to an intelligent start-stop control system for coal washing plants. Background technique [0002] As we all know, coal washing is an indispensable process of coal deep processing, which is an industrial process to remove impurities in raw coal, or to classify high-quality coal and low-quality coal. The coal mined directly from the mine is called raw coal. Raw coal is mixed with many impurities during the mining process, and the quality of the coal is also different. Coal with low internal ash content and coal with large internal ash content are mixed together. The products produced after the coal washing process are generally divided into gangue, medium coal, B-grade clean coal, and A-grade clean coal. The finished coal after the coal washing process is usually called clean coal. Through coal washing, the cost of coal transportation can be reduced and the cost of coa...

AI Technical Summary

Problems solved by technology

[0003] In the process of coal washing, it is often necessary to start multiple coal washing equipment at the same time or sequentially. At present, the start-up of each machine needs to be controlled by a frequency converter, so there are the following defects in practice: With the increase in the number of machines The complexity of the operation is increasing rapidly, and at the same time, the coordination between multiple starting vehicles is difficult to grasp

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