Replacing and gap-repairing device and method for converter bottom-blowing brick

A converter bottom blowing and gap technology, which is applied in the manufacture of converters, etc., can solve problems such as lack of safe and feasible mechanized operation methods for gap repair, and refractory mud cannot be filled evenly, so as to avoid voids, increase fluidity, and uniform materials smooth effect

Active Publication Date: 2019-05-10
GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a device for replacing and repairing the gap between blown bricks at the bottom of the converter, so as to solve the problem that the refractory mud cannot evenly fill the entire gap when the gap is repaired during the assembly process of the hot replacement bottom blown brick
[0008] Another object of the present invention is to provide a method for replacing and gap repairing the bottom blowing bricks of the converter, so as to solve the problem that there is no safe and feasible mechanized operation method for gap repair during the assembly process of the bottom blowing bricks

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
  • Replacing and gap-repairing device and method for converter bottom-blowing brick
  • Replacing and gap-repairing device and method for converter bottom-blowing brick
  • Replacing and gap-repairing device and method for converter bottom-blowing brick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for replacing and repairing gaps in converter bottom blowing bricks, comprising the following steps: (This method uses the aforementioned device for converter bottom blowing brick replacement and gap repairing for testing.)

[0045] step:

[0046] A. Drilling:

[0047] Prefabricate the bottom blown brick 2 according to the diameter of the drilled hole. The diameter of the drilled hole determined by the 80-ton converter blocked bottom blown brick in this embodiment is 130 mm, so the bottom diameter of the round table part 21 of the prefabricated bottom blown brick 2 is 130 mm, and the round table part 21 The height is 50mm; the diameter of the cylindrical part 22 is 110mm; the hole is drilled on the seat brick 11 to be repaired, and the diameter of the hole is equal to the bottom diameter of the circular platform part 21 of the bottom blowing brick 2.

[0048] B. Install bottom blowing brick and gap repair device:

[0049] Smear refractory mud on the side of t...

Embodiment 2

[0055] A. Drilling:

[0056] Prefabricate the bottom blown brick 2 according to the diameter of the drilled hole. The drilled diameter of the bottom blown brick with 120 tons of converter plugging in this embodiment is determined to be 180mm, so the bottom diameter of the round platform part 21 of the prefabricated bottom blown brick 2 is 180mm, and the round platform part 21 The height is 80mm; the diameter of the cylindrical part 22 is 150mm; the hole is drilled on the seat brick 11 to be repaired, and the diameter of the hole is equal to the bottom diameter of the circular platform part 21 of the bottom blowing brick 2.

[0057] B. Install bottom blowing bricks:

[0058] The front end of the circular bezel 21 is coated with refractory mud, and the bottom blowing brick 2 is pushed into the predetermined position by the jacking equipment. The front end of the circular bezel 21 is flush with the top of the drilled hole, and the bottom diameter side of the circular bezel 21 is ...

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 discloses a replacing and gap-repairing device and method for a converter bottom-blowing brick, which belongs to the technical field of converter steel-making, and solves the problem that the whole gap cannot be uniformly filled up with refractory mortar during gap repair in a bottom-blowing brick thermal-replacing assembling process. The device comprises the bottom-blowing brick which is positioned at a drilled hole of a furnace body base brick, a gap repairing device, a spraying-blowing tank and a pressing disc, wherein the bottom-blowing brick is a specially-shaped refractorybrick; a through hole is formed in the center of the bottom-blowing brick; the gap repairing device comprises a driven wheel and a drive wheel; at least two supporting rods are arranged on the drivenwheel; the tail ends of the supporting rods are equipped with grinding wheels; a spraying-blowing tube is arranged on the driven wheel; the tail end of the spraying-blowing tube is equipped with a spraying-supplementing gun; the other end of the spraying-supplementing gun is connected with a spraying-blowing tank; the spraying-blowing tank is equipped with a spraying-blowing carrier gas tube; andthe pressing disc is adjacent to the driven wheel. The method comprises the steps of drilling, mounting the bottom-blowing brick, mounting the gap repairing device, repairing, purging and sintering. According to the gap repairing method and mated equipment disclosed by the invention, safety guarantee is provided for online thermal replacement of the bottom-blowing brick, so that economic benefitsare obvious.

Description

technical field [0001] The invention belongs to the technical field of converter steelmaking, and in particular relates to a converter bottom blowing brick replacement and gap repair device and method thereof. Background technique [0002] Converter top-bottom combined blowing technology has become an indispensable technical method for converter steelmaking, and has been widely used. Bottom-blown permeable bricks are the core of converter compound blowing technology. Good bottom blowing effect is to ensure the combined blowing converter metallurgy. The key to the effect, the bottom blowing effect is the key index to evaluate the production control of the top-bottom combined blowing converter. The normal bottom blowing effect, combined with the oxygen supply of the top-blowing oxygen lance, can achieve the best stirring effect of the metallurgical molten pool and ensure the smelting process. Stable, less splashing, making the C-O product of molten steel at the end point close...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/44C21C5/35
CPCY02P10/20
Inventor 魏国立朱青德胡绍岩张英嘉王德勇茹作栋
Owner GANSU JIU STEEL GRP HONGXING 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