Synchronous control method and system for converter tilting device
A technology of tilting device and synchronous control, applied in the direction of manufacturing converters, etc., can solve the problems of large vibration, converter nodding, jitter, etc., and achieve the effect of reducing vibration and avoiding converter nodding.
Inactive Publication Date: 2015-11-11
SHANDONG IRON & STEEL CO LTD
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[0011] The embodiments of the present invention provide a synchronous control method and system for a converter tilting device to solve the problems in the prior art that the converter tilting device vibrates greatly, and the converter has nodding and shaking phenomena
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[0046] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0047] Embodiments of the present invention provide a synchronous control method and system for a converter tilting device. In the start-up phase, master-slave control is adopted for the frequency converters to realize torque synchronization of the tilting motors in the start-up phase; Control to realize the synchronization of the rotat...
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The embodiment of the invention discloses a synchronous control method and system for a converter tilting device. In the brake stage, all frequency converters receive the same first rotation speed set value at the same time, and the first rotation speed set value is smaller than the actual rotation speed value of any tilting motor at current time; all the frequency converters adjust switching-in power sources of the tilting motors connected with the frequency converters to be the power sources of the corresponding frequencies and voltages according to the first rotation speed set value, so that all the tilting motors have the same rotation speed. According to the synchronous control method and system for the converter tilting device, the rotation speed control is conducted to all the frequency converters in the converter brake process, so that the rotation speeds of all the tilting motors are the same, vibration of the converter tilting device is relieved, and then the phenomena of nodding and shaking of a converter are avoided.
Description
technical field [0001] The invention relates to the technical field of design and manufacture of metallurgical equipment, in particular to a synchronous control method and system for a converter tilting device. Background technique [0002] Converter tilting is the most important link in the process of converter steelmaking. In the process of oxygen top-bottom combined blowing converter steelmaking, many complicated processes are involved, such as mixing molten iron, blowing, feeding, tapping, slag dumping, Furnace repair, etc., the completion of these processes requires the smooth tilting and accurate positioning of the furnace body to ensure. Due to the large weight and volume of the converter itself, its tilting operation is complicated and difficult to control. It has the characteristics of low speed, heavy load, forward and reverse rotation, frequent starting and braking, strong impact, large dynamic load and harsh working conditions. Multiple tilting motors control an...
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IPC IPC(8): C21C5/50C21C5/35
Inventor 柳希泉孟伟祖奇王振亓波董跃华陆会鑫邢敏陈贤辉吴秀程杨军倪志国陈战
Owner SHANDONG IRON & STEEL CO LTD