Tundish flow control system capable of filtering inclusions in steel

A tundish and flow system technology, which is used in casting melt containers, manufacturing tools, metal processing equipment, etc., can solve problems such as clogging of flow control devices, and achieve the effects of preventing filter clogging, improving continuity and efficiency, and having a simple structure.

Active Publication Date: 2020-04-03
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

Method used

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  • Tundish flow control system capable of filtering inclusions in steel
  • Tundish flow control system capable of filtering inclusions in steel
  • Tundish flow control system capable of filtering inclusions in steel

Examples

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Example

[0030] Example 1 and Comparative Example 1

[0031] The tundish flow control system of embodiment 1 that can filter inclusions in steel, and 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 internal space of the tundish can be divided into: mixing zone, piston zone and dead zone. The mixing zone is located near the ladle injection, where 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 is pushed forward in this zone, accompanied by partial back mixing; 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 the largest possible piston area and the smallest possible dead zone.

[0033] Since the fl...

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PUM

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Abstract

The invention discloses a tundish flow control system capable of filtering inclusions in steel, which comprises a tundish. The space in the tundish is divided into an impact area located in the middleand two pouring areas located beside the impact area through two retaining walls, wherein the molten steel is introduced into the impact area through the pouring long nozzle, a turbulence suppressoris arranged under the pouring long nozzle, a plurality of flow guide grooves are formed in each retaining wall to communicate the impact area with the pouring areas, a water outlet is formed in the bottom of the pouring area, the multiple flow guide grooves are sequentially distributed in the height direction of the retaining wall, and each flow guide groove extends in the width direction of the retaining wall. According to the tundish flow control system capable of filtering inclusions in steel disclosed in the invention, inclusions in steel can be filtered out, the inclusions in molten steelare promoted to fully float upwards to be discharged, blockage is not prone to occurring, the flowing state and speed distribution of the molten steel in the tundish can be improved, the temperaturedifference of a water outlet area is reduced, finally, molten steel in the tundish is purified, and the casting blank quality is improved.

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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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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