Intelligent control system and method for slow cooling process of slag

Abstract

The invention discloses an intelligent control system for a slow cooling process of slag. The system is composed of a control unit, a slag ladle vehicle positioning unit, a slag ladle vehicle pressure detecting unit and a spraying unit. The slag ladle vehicle positioning unit is used for sending slag ladle vehicle positioning information to the control unit. The slag ladle vehicle pressure detecting unit is used for sending a slag ladle vehicle pressure signal to the control unit; and the control unit is used for determining a slag ladle position based on the pressure and position signals and controlling turning on or off of the spraying unit based on natural cooling time of the slag ladle. In addition, the invention also discloses a control method. The control method includes: S01, a slag ladle is moved out of a slag outlet; S02, a slag ladle vehicle pressure signal is detected; when slag ladle unloading is complete, a position signal is sent out; S03, slow cooling time management is carried out on the slag ladle and spraying is carried out within preset time; and S04, when the slow cooling time of the slag ladle reaches the preset time, ladle taking work is carried out. The control system and method have advantages of high automation degree and precise slow cooling process control.

Description

technical field [0001] The invention mainly relates to the technical field of smelting, in particular to an intelligent control system and method for slow cooling process of slag. Background technique [0002] In recent years, with the rapid development of copper smelting technology, raw materials such as copper concentrates have become increasingly scarce. Improving the recovery rate of copper metal has become a research topic for many manufacturers and process developers. The characteristics of high recovery rate, low waste slag grade and low energy consumption have gradually become the mainstream process for treating copper smelting slag. Through slag beneficiation, the recovery rate of smelting can be greatly improved, the comprehensive utilization rate of resources can be improved, and the economic benefits of enterprises can be increased. The slag slow cooling system slowly cools the raw material electric furnace slag or converter slag provided by the smelting slag li...

AI Technical Summary

Problems solved by technology

[0004] (1) The natural slow cooling time, the spraying time is not enough, and the red envelope appears when the slag car is reversed;

[0005] (2) When the slag bag is placed, the position is confused, the bag is misplaced, the wrong bag occurs, and the slow cooling time is insufficient, resulting in red packets;

[0006] (3) The spray water solenoid valve fails or is blocked, resulting in too small or no water in the spray water, and the post inspection fails, resulting in red envelopes;

[0007] (4) The automatic temperature measurement and control system fails, and the temperature detection is inaccurate, resulting in red envelopes;

[0008] (5) The positions of the electric furnace and converter slag packages are confused, the packages are misplaced, wrong packages occur, the natural slow cooling time is not enough, and the converter slag packages burst after the spray is turned on;

[0009] (6) The amount of copper contained in converter slag is too high, and the natural slow cooling time is not enough, forming a white skin phenomenon, resulting in bursting, etc.

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