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A kind of slag ring automatic blocker and its manufacturing method

A manufacturing method and blocker technology, which is applied in the direction of manufacturing tools, casting equipment, mechanical cleaning, etc., can solve the problems of loose and damaged lining bricks and upper edges, low operating efficiency, and high construction strength, and achieve the goal of suppressing slag rings Formation, easy to install and operate, and improve the effect of working efficiency

Inactive Publication Date: 2016-08-17
鞍山冶金集团工业有限公司鞍山三炼钢分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Metallurgical enterprises, especially iron and steel industry ladles and ladles in the iron and steel industry, during the process of receiving molten iron, molten steel and pretreatment, there are many deposits formed on the upper part of the ladle wall and along the edge of the ladle; The heat dissipation from the liquid surface is serious, and solid slag rings are formed after the molten slag condenses with molten iron and ladle; once a solid slag ring is formed, it will not only reduce the volume of the container containing the liquid metal, but also cause the discharge of molten iron, molten steel and other liquid metals. The difficulty seriously affects its due role, and directly reduces the production efficiency of enterprises, affecting the service life and turnover rate of liquid metal containers
And when dealing with this slag circle, there are many inconveniences and bigger difficulties:
[0003] 1. Manual removal: Workers need to use a variety of tools and oxygen to burn and cut the slag ring in sections, and at the same time, a large amount of dust and harmful gases are gushing out, which not only causes serious pollution to the surrounding environment, but also requires high construction intensity and is labor-intensive and time-consuming. , the operating efficiency is low; at the same time, the operating environment is harsh and the conditions are difficult, and it is necessary to beware of falling objects and hurting people at any time
[0004] 2. Mechanical removal: Since the slag ring is a whole and is firmly attached to the lining brick and the upper edge of the container, the use of mechanical cleaning will cause loosening and damage to the lining brick and the upper edge, which will affect the overall service life of the container and increase the production of enterprises. cost

Method used

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  • A kind of slag ring automatic blocker and its manufacturing method
  • A kind of slag ring automatic blocker and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Al 2 o 3 56%, SiO 2 34%, SiC 8%, and steel fiber 2% with a specification of Φ1.5×3.5mm were put into a mixer, and after fully dry mixing, 3.5% water was added, and then stirred for 8 minutes to form a slurry.

[0028] 2. Pour the slurry into the mold coated with release agent, open the attached concrete vibrator of the mold, the power of the vibrator is 1.1kW, the vibration frequency is 2840 times / min, vibrate until there is no air hole in the material and a small amount After the slurry floats, stop the vibration.

[0029] 3. After vibration molding, place the mold together with the mold at a temperature of 20°C for 48 hours before demoulding.

[0030] 4. Place the demoulded mold blank at a temperature of 25°C for 15 days, and then put it into a drying oven to dry. The specific drying system is:

[0031] It takes 12 hours to raise the temperature of the drying oven to 120°C, and keep it at 120°C for 2h;

[0032] It takes 12 hours from 120°C to 300°C, and kee...

Embodiment 2

[0035] 1. Al 2 o 3 64%, SiO 2 27%, SiC 6%, and steel fiber 3% with a specification of Φ1.5×3.5mm were put into a mixer, and after fully dry mixing, 4.5% water was added, and then stirred for 6 minutes to form a slurry.

[0036] 2. Pour the slurry into the mold coated with release agent, open the attached concrete vibrator of the mold, the power of the vibrator is 1kW, the vibration frequency is 2860 times / min, vibrate until there is no air hole in the material and there is a small amount of slurry After floating, stop the vibration.

[0037] 3. After vibration molding, place the mold together with the mold at a temperature of 30°C for 48 hours before demoulding.

[0038] 4. Place the demoulded mold base at 28°C for 10 days, and then put it into a drying oven to dry. The specific drying system is:

[0039] It takes 12 hours to raise the temperature of the drying oven to 120°C, and keep it at 120°C for 2h;

[0040] It takes 12 hours from 120°C to 300°C, and keeps at 300°...

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Abstract

The invention provides a slag rim automatic blocking device and a manufacturing method thereof. The slag rim automatic blocking device comprises the following raw materials in wt%: 55-65% of Al2O3 (aluminum oxide), 25-35% of SiO2 (silicon dioxide), 5-10% of SiC (silicon carbide), and 1-3% of steel fiber. The manufacturing method comprises the following steps of adding 3-5% of water into the raw materials, mixing for 5-8min, pouring into a die with a vibrator, vibrating until a small amount of slurry floats up, placing for 48h at the temperature of 15-30 DEG C, stripping, placing for 7-15 days, putting into a drying furnace, rising temperature to 120 DEG C within 12h, and insulating heat for 2h; rising the temperature to 300 DEG C within 12h, and insulating heat for 6h; rising 480 DEG C within 2h, and naturally cooling. The slag rim automatic blocking device consists of a slag blocking column, a hanging plate and a hook plate, and is in an L shape, and the length of the slag blocking column is greater than the length of the hook plate. The two blocking devices are symmetrically arranged at the two sides of the upper edge of a container, a slag rim is blocked by the slag blocking column in the forming process, and the arc slag section which is smaller than 1 / 2 of the perimeter of the container is formed, so the slag is easily removed. The slag rim automatic blocking device has the advantages that the forming of the slag rim is effectively inhibited, the labor intensity is decreased, the operating environment is improved, the operation efficiency is improved, the service life of the container is prolonged, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of smelting devices, in particular to an automatic blocker for a slag ring on the upper part of a container used for containing liquid metal and a manufacturing method thereof. Background technique [0002] Metallurgical enterprises, especially iron and steel industry ladles and ladles in the iron and steel industry, during the process of receiving molten iron, molten steel and pretreatment, there are many deposits formed on the upper part of the ladle wall and along the edge of the ladle; The heat dissipation from the liquid surface is serious, and solid slag rings are formed after the molten slag condenses with molten iron and ladle; once a solid slag ring is formed, it will not only reduce the volume of the container containing the liquid metal, but also cause the discharge of molten iron, molten steel and other liquid metals. The difficulty seriously affects the performance of its due role, and directly reduces th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D43/00C04B35/76C04B35/66
Inventor 曾军刘伟
Owner 鞍山冶金集团工业有限公司鞍山三炼钢分公司