Three-machine three-strand slab continuous casting machine production line

Abstract

The invention discloses a three-machine three-strand slab continuous casting machine production line which is specially matched with the rapid smelting period of a large converter. Three water outlets are formed in the bottom of an intermediate tank of the production line. A one-strand slab continuous casting machine is correspondingly arranged on the lower portion of each water outlet. The two sides, in the inner and outer arc direction, of each vibration device are each provided with a vibration oil cylinder and leaf springs, wherein the two vibration oil cylinders are set to be the same in motion stroke, and the leaf springs are set to be the same in mounting angle. All loads of the vibration devices are transmitted to a secondary cooling chamber concrete wall through vibration supporting structures. Sector segment transmission devices of the casting machines on the left side and the right side are arranged outside the secondary cooling chamber concrete wall, and motors and speed reducers are directly connected with drive rollers of horizontal sector segments through couplers. A transmission device of the middle slab continuous casting machine is a suspended transmission device. Productivity can be obviously increased, existing two-strand continuous casting machines can be conveniently modified into three-machine three-strand continuous casting machines, the process layout is compact, and the economic performance is excellent.

Description

technical field [0001] The invention relates to a production line for a three-machine three-strand slab continuous casting machine, in particular to a three-machine three-strand slab continuous casting machine casting and casting production line equipment that can be matched with a large converter, and belongs to the technical field of metallurgical machinery continuous casting and casting equipment. Background technique [0002] In recent years, with the rapid development of my country's iron and steel industry, on the one hand, the production capacity is seriously overcapacitated, and on the other hand, the new environmental protection law is strictly implemented, which has led to the intensified pressure on the survival of iron and steel enterprises. In order to reduce the cost, the converter equipment is gradually becoming large-scale. However, it is accompanied by the problem of insufficient post-processing equipment for molten steel. The existing conventional double-str...

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Problems solved by technology

[0003] In order to match the steelmaking capacity of large converters, it is a direction to develop single-strand or double-strand slab continuous casting machines with greater production capacity, but the disadvantages of this method are: a new design is required, from trial production to finalized implementation It needs a long period of time, and it is not conducive to the maximum utilization of the existing slab continuous casting machine equipment for transformation; another method is to use the necessary equipment equipped with the existing two-strand slab continuous casting machine to develop three-strand or more The slab continuous casting machine with the same section (or different sections) of the runners, but due to the influence of the site layout and equipment structure of the existing double-strand slab continuous casting plant, it is not possible to simply superimpose one (or more) runners. The main reason is that : The hydraulic vibration unit cannot be stably supported, the tundish is too long and easily deformed, the sector drive motor cannot be arranged in the secondary cooling room, and the steam extraction effect of the intermediate casting stream cannot be guaranteed, etc.

With the continuous improvement of metallurgical material technology, the problem that the tundish is too long and easy to deform has been gradually solved, but combined with the solution of the stable support of the hydraulic vibration unit, the arrangement of the fan-shaped transmission motor in the secondary cooling room, and ensuring the steam extraction effect of the intermediate casting strand, the design A three-machine three-strand slab continuous casting machine production line, which has not yet been seen in literature or patents

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