A kind of multi-strand billet casting machine anti-accident expansion control method and system

Abstract

The invention discloses an enlarged control method and system for preventing sudden accidents of a multi-stream billet casting machine, comprising: constructing an input vector based on a least squares support vector machine; The input vector is used to confirm the model parameters; the control model is constructed by using the time series strategy, and the training is performed in combination with the least squares support vector machine and the data set; The control model described above, input the test set for testing, and obtain the predicted value. The invention effectively reduces various risks and losses caused by sudden emergencies or power outages and power failures of the casting machine, quickly restores equipment operation, improves production efficiency, improves the operation rate of the casting machine, protects the equipment conditions of the casting machine, and regulates accidents. Emergency handling process, improve the emergency handling capacity of accidents, avoid the consequences and risks caused by sudden accidents, and create greater economic benefits for the enterprise every year.

Description

technical field [0001] The invention relates to the technical field of multi-strand billet continuous casting production anti-accident expansion, equipment and personal safety, in particular to a multi-strand billet casting machine anti-emergency expansion control method and system. Background technique [0002] Continuous casting is an important process for converting liquid high-temperature molten steel into solid high-temperature slabs in iron and steel production. The high-temperature liquid molten steel involved in the continuous casting production process is difficult to control in the event of an accident, often causing damage to personnel and equipment. [0003] At present, when the production process of the billet continuous casting machine encounters a sudden emergency (power outage, power failure) accident, it is necessary to use the existing two hydraulic equipment to cooperate with the use of blind plates and manual interception treatment. During this process, d...

AI Technical Summary

Problems solved by technology

Due to the high temperature and danger during this process, it is often difficult for personnel to approach the casting area to deal with accidents, and all molten steel is stopped. The casting rate is low, which leads to out-of-control pouring of molten steel in the tundish, and in severe cases, it is easy to cause personal injury and equipment damage

At present, the equipment system has the following risks: 1. In case of sudden emergency or power outage or power failure in the production process of the continuous casting machine, personnel use blocking cones to intercept the flow from the upper or lower part of the tundish, the success rate is low, and there is a risk of personal injury; 2. , In the event of an emergency, use the online hydraulic system equipment and the blind plate to stop the flow operation. Since there are only 2 sets of equipment, it is necessary to take out the oil cylinders one by one and then hang the oil cylinders to start the equipment to drive out the oil cylinders and use the blind plates to stop the casting flow. It takes a long time, and often only 1 or 2 streams can be blocked, while other streams cannot be blocked in time, resulting in high-temperature molten steel overflowing and damaging the equipment; 3. In the event of a power failure or power trip, the hydraulic station is powered off and the pressure fails , the solenoid valve loses power and does not operate, the hydraulic system is paralyzed, and the equipment cannot operate, resulting in the blockage of the blind plate and the inability to carry out the casting flow operation, resulting in a large area of ​​molten steel overflowing, damaging a large number of equipment in the casting machine, and taking a long time to recover the casting machine. Huge losses (such as: a certain workshop in a certain factory caused serious equipment damage due to a power outage, production was stopped for 7 days to deal with the accident, and the accident loss was about 10 million yuan)

Images