Control method for replacing cooling tower steering roller motor band-type brake by galvanizing unit
A technology of motor brake and control method, which is applied in hot-dip plating process, coating, metal material coating process, etc., can solve the problems of full-line parking, severe coil heating, and separate research, and achieve the effect of saving equipment costs
Pending Publication Date: 2021-05-28
BAOTOU IRON & STEEL GRP
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Problems solved by technology
[0002] The steering roller of the cooling tower of the galvanizing line of Baotou Steel Sheet Factory is installed on the top of the cooling tower. The top of the tower is 35 meters away from the ground and is close to the annealing furnace. Therefore, the ambient temperature at this position is very high. The original design of the motor brake of the steering roller of the cooling tower is Electromagnetic brakes need to be opened during normal production, and the brake coils are always energized, so that the coils are very hot. In addition to the high ambient temperature, the service life of the brakes is generally only about 1 year, and the brakes will burn out when they burn out. Cause the whole line to stop, not only affect the production but also produce a lot of waste products
[0003] The control method of the steering roller motor brake of the cooling tower of the galvanizing unit is rarely mentioned in the field of automation. According to the relevant patent applications and research papers in recent years, there is no control method for the steering roller motor brake of the cooling tower of the galvanizing unit. method to conduct individual research and propose a solution
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[0013]Such asfigure 1 The principle shown, the invention:
[0014]Continuous galvanized wire cooling tower steering roller motor brake operation process is as follows:
[0015](1) The cooling tower 1 # steering roller and 2 # steering roller motor are designed with electromagnetic brakes.
[0016](2) Cooling Tower 1 # Steering Roller and 2 # Steering Roller Motor Electromagnetic Hug Closure When the motor speed is zero, it is open when the production line is produced normally.
[0017](3) When the zinc wok is broken, the cooling tower 1 # turned to the roller press, the cooling tower 1 # turned to the roller motor brake, which prevents the steel cooling tower 2 # turned back to the cooling tower 1 # Take the strip of the strip in front of the roller out of the cooling tower.
[0018](4) When the steel roller stripping steel from the cooling tower 2 # steering roller is taken, the tape steel is not pulled back by the cooling tower 1 # steering roller and 1 # steering roller.
[0019]Add 2 selection bu...
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The invention discloses a control method for replacing a cooling tower steering roller motor band-type brake by a galvanizing unit. Two selection buttons are added on a control picture of a cooling tower, one selection button is used for selecting a cooling tower steering roller motor band-type brake control mode, and the other selection button is used for closing the cooling tower steering roller motor band-type brake control mode. During normal production, a selection button for selecting a cooling tower motor band-type brake control mode is selected, and the other button is selected to be closed only after a line is overhauled and stopped; and when the motor band-type brake control mode is put into use, a tension value of the cooling tower is detected, and when the tension value is smaller than 25% of a set value, a motor operation command given speed of a first steering roller and a second steering roller of the cooling tower is set to be zero, so that a purpose of fixing the steering rollers is achieved by utilizing the motor output speed of the steering rollers to be zero. According to the invention, the control program and the picture are optimized, so that the equipment cost is saved, and the function of motor band-type brake of the steering roller of the cooling tower is realized.
Description
Technical field[0001]The present invention relates to the field of continuous galvanized line automation, and more particularly to a control method of replacing a galvanized unit replacement cooling tower steering roller motor brake.Background technique[0002]Bag steel thin plate plant galvanized line cooling tower steering roller is mounted in the cooling tower, 35 meters from the top of the tower, and close to the annealing furnace, so the position is very high, the cooling tower steering roller motor holder is designed Electromagnetic brake, need to open the brake when normal production, the brake coil has been electrically powered, so the coil is hot, plus the ambient temperature, the burn life is generally only 1 year, and the brake is burned Starting all-line parking, not only affecting production, there will be a lot of waste.[0003]The control method of the galvanized unit cooling tower steering roller motor brake is rarely mentioned in the field of automation. From the perspe...
Claims
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IPC IPC(8): C23C2/06C23C2/40
CPCC23C2/06C23C2/40
Inventor 陈儒峰杨丛军
Owner BAOTOU IRON & STEEL GRP