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Walking beam furnace high-level tapping automatic control method

A walking heating furnace, high-level technology, applied in the direction of heat treatment process control, heat treatment furnace, furnace, etc., can solve problems such as blank drop accident, collision with furnace door retaining wall, slab tilt, etc., to reduce burning loss , Improve production efficiency and stabilize the effect of temperature field

Active Publication Date: 2017-01-04
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the walking beam is not raised during tapping, it may hit the slab and cause the slab to tilt in a large area, or hit the furnace door fire retaining wall during the tapping process, resulting in a slab drop accident

Method used

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  • Walking beam furnace high-level tapping automatic control method
  • Walking beam furnace high-level tapping automatic control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The length of the slab is 10800mm, and when the length of the slab is set to be 10500-10900mm in the second stage, the steel is tapped at the high position of the walking heating furnace.

[0024] Such as figure 2 As shown, an automatic control method for high-level tapping of a walking heating furnace. When the laser detector at the discharge end detects that the slab reaches the tapping position, it is compared with the set value of 10500-10900mm. If the step is within the range of 10500-10900mm The beam enters and the steel is tapped at a high position automatically; the specific steps are as follows:

[0025] 1) Furnace loading, the steel loading machine automatically loads steel;

[0026] 2) The walking beam advances automatically according to the required temperature of the slab;

[0027] 3) The laser detector at the discharge end detects that the slab is in place;

[0028] 4) Determine whether the length of the slab is within the range of 10500-10900mm;

[0...

Embodiment 2

[0034] The length of the slab is 10000mm, and when the length of the slab is set to be 10500-10900mm in the second stage, the steel is tapped at the high position of the walking heating furnace.

[0035] Such as figure 2 As shown, an automatic control method for high-level tapping of a walking heating furnace. When the laser detector at the discharge end detects that the slab reaches the tapping position, it is compared with the set value of 10500-10900mm. If the step is within the range of 10500-10900mm The beam enters and the steel is tapped at a high position automatically; the specific steps are as follows:

[0036] 1) Furnace loading, the steel loading machine automatically loads steel;

[0037] 2) The walking beam advances automatically according to the required temperature of the slab;

[0038] 3) The laser detector at the discharge end detects that the slab is in place;

[0039] 4) Determine whether the length of the slab is within the range of 10500-10900mm;

[0...

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Abstract

The invention relates to a walking beam furnace high-level tapping automatic control method. A secondary preset plate blank length is compared with a preset value when a laser detector at a discharging end detects that a plate blank reaches a tapping temperature, and automatic high-level tapping of a walking beam is carried out if the length is in the preset range; and the walking beam furnace high-level tapping automatic control method effectively avoids the accident of blank dropping caused by bumping of the bent part of the plate blank to the wall of the furnace in the tapping process of a tapping machine. The method is enforced to effectively improve the production efficiency, shorten the manual operating time of operators and avoid accidents caused by untimely manual operation. The method has the advantages of effective reduction of the energy consumption, stabilization of the temperature field, reduction of the burning loss, effective improvement of the stability of the furnace pressure, and avoiding of rapid change of the furnace pressure due to furnace door opening and heat exchange.

Description

technical field [0001] The invention relates to the field of automatic control of heating furnaces, in particular to an automatic control method for high-position tapping of a walking heating furnace. Background technique [0002] When the loading conditions of the walking heating furnace are met, the charging furnace door is automatically opened, and the steel loading machine loads it into the fixed beam in the heating furnace. The steel slabs put into the furnace pass through the positive circulation of the walking beam in the furnace according to the requirements of the production rhythm, and the slabs pass through each section of the furnace in turn. When the steel is tapped, the walking beam stops moving, and the electric control system simultaneously measures and calculates the position of the slab waiting to be tapped. After the heating furnace receives the signal from the rolling line, the discharge furnace door is automatically opened, and the hot slab is lifted ou...

Claims

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Application Information

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IPC IPC(8): C21D9/70C21D11/00
Inventor 刘占全赵久长张成斌奚宏淼李明敏
Owner ANGANG STEEL CO LTD
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