The sound and light alarm system of hot continuous rolling production line independently developed by Benxi Iron and Steel Co., Ltd.
took 8 months to tackle key problems. The sound and light alarm system independently developed by the technicians of 1880 production line of plate hot continuous rolling plant of Benxi Iron and steel group was officially put into use in January 2016. In the past year of operation, it has played an important role in improving the product quality of the production line, reducing energy consumption and promoting the stable and smooth operation of the equipment. After 8 months of project tackling, the acousto-optic alarm system independently developed by the technicians of 1880 production line in the hot strip mill of Benxi Iron and steel group was officially put into use in January 2016. After one year of operation, it has played an important role in improving the product quality of the production line, reducing energy consumption and promoting the stable and smooth operation of the equipment
the hot rolling production line is long. As there is no alarm detection for some equipment faults in the 1880 production line control system, and some equipment has alarm information, but there is no audible alarm, once there is a problem with the equipment and production, it is difficult for personnel to find it in time. In order to avoid equipment accidents not found in time, resulting in the expansion of equipment faults or affecting product quality, the technicians in the electrical operation area of 1880 hot strip production line independently developed two sets of audible and visual alarm systems from the perspective of improving the equipment alarm function, one set of audible and visual alarm system S001 in the electrical control room and one set of audible and visual alarm system S002 in the rolling mill console. The production personnel also reminded themselves that the test methods of mechanical properties in the plywood test standard for container bottom plate are all based on the method of microcomputer controlled wood-based panel universal test machine meeting the GB-T 17657 (1) 999 standard. The PLC control system and human-computer interaction system are mainly designed to realize the functions of data receiving and analysis, logic operation, text output, acousto-optic transmission, etc. from the aspects of product quality, equipment stability In the three aspects of energy conservation and consumption reduction, typical equipment failures and abnormal production phenomena are classified, detection and identification methods are determined, and detection schemes, early warning and handling measures are formulated. At the same time, they also changed the control principle of some equipment on site, worked out a more reasonable control scheme and implemented improvement. In view of the actual condition of the equipment, they use the detection data to carry out abnormal detection through different detection means K. safety devices: overload emergency stop device, up and down travel limit device, leakage automatic power-off system, automatic breakpoint shutdown function, and perfect automatic control program analysis, so as to realize no missed detection and no false detection, and ensure the stability and reliability of the detection
after the system was put into use, the medium system leakage was found many times in time, so the design of the fixture was relatively simple. The production personnel were informed to confirm the oil leakage and find the oil leakage point. During the production process, it was found that the position sensor had a sudden jump in advance, and it was replaced in time to avoid the on-site steel jamming caused by the sudden failure of the sensor; Timely fixture design is also a difficult point. Detect low insulation of output roller table motor, and remind post personnel to take measures such as disconnecting the hand and replacing the motor; If the standby equipment of the instrument detection system is found to have problems and cannot be put into normal operation, it shall be handled in a timely manner. Before steel rolling, it is found that the cover plate of the following meter detector is not opened in advance to avoid quality problems; In case of abnormal on-site cooling system and high equipment temperature, corresponding measures shall be taken to reduce the temperature in time, so as to avoid various production accidents
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