Composite crystallizer

A crystallizer and duplex technology, which is applied in the field of metal casting, can solve the problems of insufficient cooling and large slab resistance, and achieve the effects of improving cooling capacity, reducing motion resistance and reducing accidents.

Inactive Publication Date: 2009-04-29
BAOSTEEL ENG & TECH GRP
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AI-Extracted Technical Summary

Problems solved by technology

[0004] In order to solve the problem of large slab resistance and insufficient cooling in the existing mold at high casting speed, the task of the present invention is to provide a com...
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Abstract

The invention relates to a duplex type crystallizer which comprises a sliding type crystallizer which is taken as an upper crystallizer and a synchronous circulation mobile cooling belt device which is taken as a lower crystallizer. The duplex type crystallizer consists of the upper crystallizer and the lower crystallizer. The lower crystallizer consists of more than two cooling belts, a driven roller, a cooling device, a supporting roller and a driving roller, wherein, the driven roller and the driving roller are respectively positioned at the two ends of the cooling belt, the supporting roller and the cooling device are arranged between the driven roller and the driving roller, each cooling belt surrounds at the periphery of the driven roller, the cooling device, the supporting roller and the driving roller. The invention adopts the fractional crystallizer structure, the upper crystallizer only plays the role of shell-making, which can decrease the length and reduce the motion resistance of the casting blank; and no motion resistance exists between the lower crystallizer and the casting blank, thus lengthening the lower crystallizer and meeting the requirement of cooling the casting blank. The adoption of the duplex type crystallizer can promote the casting speed, improve the cooling capability, increase the productivity of a continuous casting machine and lower the occurrence possibility of accidents.

Technology Topic

Motion resistanceEngineering +1

Image

  • Composite crystallizer
  • Composite crystallizer
  • Composite crystallizer

Examples

  • Experimental program(1)

Example Embodiment

[0012] See Figure 1 to Figure 3 , The present invention is a compound crystallizer, which consists of two parts: upper crystallizer 1 and lower crystallizer 2. The upper crystallizer 1 is a traditional sliding crystallizer, and the lower crystallizer 2 is a synchronous circulating mobile cooling belt device. Two or more lower crystallizers 2 can be set, and two synchronous circulating mobile cooling belt devices can be set in a set facing each other.
[0013] The lower mold 2 is composed of two or more cooling belts 6, a driven roller 3, a cooling device 4, a supporting roller 5, and a driving roller 7. The driven roller 3 and the driving roller 7 are located at the two ends of the cooling belt 6, and the supporting roller 5 The cooling device 4 is arranged between the driven roller 3 and the driving roller 7, and each cooling belt 6 surrounds the periphery of the driven roller 3, the cooling device 4, the supporting roller 5 and the driving roller 7. The lower crystallizer 2 in this embodiment is provided with four synchronous circulating mobile cooling belt devices to form a billet continuous casting machine.
[0014] In this compound crystallizer, the upper crystallizer only plays the role of shell-making, and the lower crystallizer plays the role of supporting and further cooling the cast slab. In the casting process, the molten steel is poured into the compound mold through the tundish, and the molten steel is initially cooled through the upper mold to form a shell of a certain thickness, enter the lower mold, and the driving roller drives the cooling belt to move synchronously with the casting billet. At the same time, the casting slab continues to be cooled, and finally the casting slab is sent out of the mold after cooling and forming.
[0015] Of course, those of ordinary skill in this technical field should realize that the above-mentioned embodiments are only used to illustrate the present invention, but not to limit the present invention. As long as the above-mentioned embodiments are changed within the essential spirit of the present invention, All the variants will fall within the scope of the claims of the present invention.
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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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