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Method for controlling temperature of slag flushing water at cooling tower outlet in blast furnace slag treating system

A technology of processing system and cooling tower, which is applied in the field of blast furnace slag processing system, can solve the problems of inability to meet the requirements of temperature control accuracy, reaction speed and automation of slag flushing water at the outlet of cooling tower.

Active Publication Date: 2014-03-19
WISDRI ENG & RES INC LTD
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AI Technical Summary

Problems solved by technology

Existing conventional control methods cannot meet the requirements of temperature control accuracy, reaction speed and automation of slag flushing water at the outlet of cooling tower

Method used

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  • Method for controlling temperature of slag flushing water at cooling tower outlet in blast furnace slag treating system
  • Method for controlling temperature of slag flushing water at cooling tower outlet in blast furnace slag treating system
  • Method for controlling temperature of slag flushing water at cooling tower outlet in blast furnace slag treating system

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Embodiment Construction

[0054] The control system in which the control method is located is such as figure 1 , figure 2 shown. A temperature control system for slag flushing water at the outlet of a cooling tower of a blast furnace slag treatment system, the cooling tower includes a cooling tower body 1, an inlet slag flushing water branch pipe 2 and an outlet slag flushing water branch pipe 3, and the slag flushing water for the cooling tower body 1 The inlet is connected to the inlet slag flushing water branch pipe 2, and the slag flushing water branch pipe 3 of the cooling tower body 1 is connected to the outlet slag flushing water branch pipe 3. There is an outlet detection device, and the tower body 1 of the cooling tower is connected with a tower body detection device; the above-mentioned detection devices are connected to the monitoring computer 11 through the PLC controller 10, and the PLC controller 10 (with a memory database on it) is also connected to the cooling tower fan 8 connected. ...

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Abstract

The invention provides a method for controlling temperature of slag flushing water at a cooling tower outlet in a blast furnace slag treating system, comprising: (S1) setting system parameters of the slag flushing water temperature; (S2) real-time acquiring each signal parameter of a blast furnace cooling tower; (S3) based on each parameter obtained by system parameter arrangement and signal real time acquisition, by regulating a rotation speed of a cooling tower blower fan, controlling the temperature of the slag flushing water at the cooling tower outlet; (S4) changing the cooling tower blower fan from an operation state to a stop state; and (S5) returning to the step S1, and carrying out temperature control of the slag flushing water in a next production period. The method can accurately, rapidly and automatically control the temperature of the slag flushing water at the cooling tower outlet, raises control precision, rapidity and automation level, and creates conditions for stable high yield of the blast furnace.

Description

technical field [0001] The invention relates to the technical field of blast furnace slag treatment systems, and relates to a method for controlling the temperature of slag flushing water at the outlet of a cooling tower of the blast furnace slag treatment system. Background technique [0002] At present, cooling towers are commonly used in blast furnace slag treatment systems. In order to improve the slag flushing effect in modern blast furnaces, the requirements for temperature control of slag flushing water at the outlet of cooling towers are getting higher and higher. [0003] Now it has become the development trend of the blast furnace slag treatment system to cool the slag water through the cooling tower, and the precondition for cooling the slag water through the cooling tower is the precise control of the temperature of the slag water at the outlet of the cooling tower. The existing conventional control methods cannot meet the requirements of temperature control accu...

Claims

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Application Information

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IPC IPC(8): C21B3/08
Inventor 赵昊裔徐海珍邱习剑任自宏周卫东徐岸非吴晨解相朋
Owner WISDRI ENG & RES INC LTD
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