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A tundish flow control system capable of filtering inclusions in steel

A technology of tundish and flow system, which is applied in casting molten material containers, manufacturing tools, metal processing equipment, etc., can solve problems such as blockage of flow control devices, reduce temperature difference, facilitate masonry, and improve flow state and velocity distribution Effect

Active Publication Date: 2021-05-14
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, flow control devices in the prior art are often clogged

Method used

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  • A tundish flow control system capable of filtering inclusions in steel
  • A tundish flow control system capable of filtering inclusions in steel
  • A tundish flow control system capable of filtering inclusions in steel

Examples

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Embodiment 1 and comparative example 1

[0031] The tundish flow control system capable of filtering inclusions in steel of embodiment 1, its specific structure is as follows figure 1 shown. Comparative example 1 is a conventional tundish in the prior art.

[0032] According to the flow state of molten steel in the tundish, the inner space of the tundish can be divided into: mixing zone, piston zone and dead zone. The mixing zone is located near the injection flow of the ladle, and the molten steel is mixed with the injection flow from the ladle; the piston zone is generated between the mixing zone and the water outlet, and the fluid in this zone pushes forward and flows with partial back mixing; the dead zone Adjacent to the piston area, the fluid in this area exchanges slowly with the outside world. The ideal tundish structure and corresponding flow control technology should be able to create as large a piston area as possible and as small a dead area as possible.

[0033]Since the fluid flow in the tundish belo...

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Abstract

The invention discloses a tundish flow control system capable of filtering inclusions in steel. The pouring area, in which the molten steel is introduced into the impact area through the pouring shroud, a turbulence suppressor is provided directly below the pouring shroud, and a number of diversion grooves are provided on each retaining wall to connect the impact area and the pouring area. A water outlet is provided at the bottom, and several diversion grooves are arranged sequentially in the height direction of the retaining wall, and each diversion groove extends along the width direction of the retaining wall. The tundish flow control system capable of filtering inclusions in steel according to the present invention can not only filter inclusions in steel, promote the inclusions in molten steel to fully float up and be eliminated, and is not prone to clogging, but also can improve the tundish The flow state and velocity distribution of the inner molten steel reduce the temperature difference in the water outlet area, finally purify the molten steel in the tundish, and improve the quality of the slab.

Description

technical field [0001] The invention relates to a flow control system, in particular to a tundish flow control system. Background technique [0002] High-purity slab is the basis for producing high-quality steel. The purity of slab mainly depends on the treatment process before the fluid enters the crystallizer. Tundish metallurgy is one of the important processes. The flow state and velocity distribution of the fluid in the tundish have an important influence on the uniformity of fluid composition and temperature, the floating and removal of inclusions, and the structure of the tundish and its flow control device determines the flow state of the fluid in the tundish. However, flow control devices in the prior art are often clogged. [0003] In view of this, it is desired to obtain a tundish flow control system, which can filter the inclusions in the steel and is not easy to block. In addition, it can also improve the flow state and velocity distribution of the molten steel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D1/00B22D41/00
CPCB22D1/00B22D41/00
Inventor 刘旭峰范正洁职建军郑宏光
Owner BAOSHAN IRON & STEEL CO LTD
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