Control method for detection of slab in heating furnace
A control method and heating furnace technology, applied in heat treatment furnaces, electrical program control, program control in sequence/logic controllers, etc., can solve problems such as falling into the furnace, bumping into the discharge furnace door, and dropping of horns, etc. problems, to improve production efficiency and ensure safe operation
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[0058] Example 1
[0059] Implementation on Baosteel's wide and heavy plate heating furnace, the specific implementation process is as follows:
[0060] (1) During the preparation for tapping, the operator tracks the thickness information of the slab according to the production plan.
[0061] (2) Select "120mm thickness mode control" on the operation screen and enter "120MM" on the operation screen "thickness control setting", and the PLC will receive the thickness setting.
[0062] (3) Laser detector. The transmitter of the detector uses a semiconductor laser as the light source. After modulation, it emits a red laser beam. After the receiving end receives the light source, it is received by the photoelectric tube and converted into an electrical signal, which is amplified and processed by the circuit to output a red laser. control signal. At this time, the power supply and signal indicator light of the receiving end device are both green. When the slab is lifted on the moving beam ...
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