Continuous casting anti-blocking submersed nozzle

An anti-clogging, immersion technology, used in foundry equipment, casting melt containers, metal processing equipment, etc., can solve the problems of drift vibration, affecting the outflow of molten steel, affecting the strength of the nozzle, reducing secondary oxidation, stable and continuous pouring effect

Active Publication Date: 2019-03-05
BAOSHAN IRON & STEEL CO LTD
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the following problems are usually encountered: ① During the baking of the nozzle, due to the presence of graphite inside the nozzle, carbon oxidation will occur after baking, resulting in a decrease in the strength of the nozzle material; When the slag under the bottom is prone to fall off
②During use, due to the physical and chemical reaction between the slag line position of the nozzle and the mold slag inside the cryst

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Continuous casting anti-blocking submersed nozzle

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] Such as figure 1 As shown, a continuous casting anti-clogging immersion nozzle includes a nozzle body 2. The inner cavity of the nozzle body 2 is a cylinder. The inlet of the nozzle body 2 is located at the top of the nozzle body 2, and is arranged in the middle of the nozzle body 2. There is a spout slag line 4, and two spout holes 5 are symmetrically provided on the side wall of the spout body 2 near the bottom of the spout body 2, and the spout holes 5 are inclined downward from the inside to the outer part of the spout body 2.

[0024] Outside the side wall of the nozzle body 2 between the top of the nozzle body 2 and the nozzle slag line 4, a thermal insulation cotton 1 is provided.

[0025] On the side wall of the nozzle body 2, a pair of argon blowing inlets 3 are symmetrically arranged. The argon blowing inlet 3 is arranged above the nozzle slag line 4 and close to the nozzle slag line 4, which penetrates the side wall of the nozzle body 2 and the i...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a continuous casting anti-blocking submersed nozzle which comprises a nozzle body. An inner cavity of the nozzle body is cylindrical, and an inlet of the nozzle body is formed in the top of the nozzle body. A nozzle slag line is arranged in the middle of the nozzle body, and two discharging holes are symmetrically formed in the side wall, close to the bottom of the nozzle body, of the nozzle body. The discharging holes are inclined downwards from the inside to the outside of the nozzle body. The continuous casting anti-blocking submersed nozzle can be widely used for a continuous casting steel production procedure, secondary oxidation of molten steel is reduced, and stable and continuous casting is achieved. In order to improve the corrosion resistance of the slag line, corrosion-resistant BN is added to the slag line of the nozzle, and produced corrosion products cannot pollute the molten steel and cannot be caked. Argon is blown into the nozzle, and caking is avoided.

Description

technical field [0001] The invention belongs to the application field of continuous casting equipment in continuous casting steel machinery, in particular to a submerged nozzle device used in the process of continuous casting steel pouring. Background technique [0002] In the prior art, many patent applications such as CN200720010304.1 and CN201520044016.2 have disclosed the structure of the continuous casting submerged nozzle. [0003] In the continuous casting process, the role of the submerged nozzle is to isolate the air and prevent oxidation, and the submerged nozzle plays the role of introducing molten steel from the tundish into the mold. In this process, the following problems are usually encountered: ① During the baking of the nozzle, due to the presence of graphite inside the nozzle, carbon oxidation will occur after baking, resulting in a decrease in the strength of the nozzle material; When the slag is under the bottom, it is easy to fall off. ②During use, due...

Claims

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B22D41/54B22D41/58
CPCB22D41/54B22D41/58
Inventor 赵显久吴杰任以平刘国强
Owner BAOSHAN IRON & STEEL CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap