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A construction method of composite ladle permanent layer

A construction method and technology of permanent layer, applied in the direction of manufacturing tools, metal processing equipment, casting melt containers, etc., can solve the problems of increasing the cost of steelmaking and enterprise operation, increasing the labor intensity of workers, and poor resistance, and reducing the The labor intensity of workers, excellent thermal shock stability, and the effect of improving service life

Active Publication Date: 2018-03-20
FANYI HONGQI BURDEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the ladle brick is eroded to the permanent layer due to various reasons in the steelmaking production process, it is very easy to cause leakage accidents due to poor resistance
When the remaining 1 / 4 (about 40-60mm) of the cladding working layer is used, in order to ensure the safety of the ladle, the remaining working layer must be completely removed, which not only increases the labor intensity of the workers, but also causes a waste of materials. Increased steelmaking costs and business operating costs

Method used

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  • A construction method of composite ladle permanent layer
  • A construction method of composite ladle permanent layer
  • A construction method of composite ladle permanent layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A construction method for a composite ladle permanent layer, the specific construction steps are as follows:

[0029] Step (1), bottom permanent layer:

[0030] First hoist the ladle shell into the masonry work station, clean up the sundries on the bottom and wall of the ladle, and then put the air-permeable brick model and the nozzle block model into the corresponding positions in the ladle shell; Add in a blender, dry mix for 1 minute, add water, and fully stir for 7 minutes; pour it into the bottom of the bag after stirring evenly, and vibrate the slurry with a vibrating rod to make it flat and dense. After the permanent layer of the bottom of the bag is knotted, natural curing for 24 Hours, according to the site conditions, when the permanent layer at the bottom of the package condenses and reaches the demoulding strength, take out the breathable brick model and the nozzle seat brick model;

[0031] Step (2), permanent layer:

[0032] Put the ladle film coated wit...

Embodiment 2

[0046] A construction method for a composite ladle permanent layer, the specific construction steps are as follows:

[0047] Step (1), bottom permanent layer:

[0048] First hoist the ladle shell into the masonry work station, clean up the sundries on the bottom and wall of the ladle, and then put the air-permeable brick model and the nozzle block model into the corresponding positions in the ladle shell; Add in a blender, dry mix for 2 minutes, add water, and fully stir for 6 minutes; pour it into the bottom of the bag after stirring evenly, and vibrate the pulp with a vibrating rod to make it flat and dense. Hours, according to the site conditions, when the permanent layer at the bottom of the package condenses and reaches the demoulding strength, take out the breathable brick model and the nozzle seat brick model;

[0049] Step (2), permanent layer:

[0050] Put the ladle film coated with waste engine oil or wrapped with plastic film 1 # Hoist it into the steel ladle she...

Embodiment 3

[0063] A construction method for a composite ladle permanent layer, the specific construction steps are as follows:

[0064] Step (1), bottom permanent layer:

[0065] First hoist the ladle shell into the masonry work station, clean up the sundries on the bottom and wall of the ladle, and then put the air-permeable brick model and the nozzle block model into the corresponding positions in the ladle shell; Add in a blender, dry mix for 1.5 minutes, add water, and fully stir for 5 minutes; pour it into the bottom of the bag after stirring evenly, and vibrate the pulp with a vibrating rod to make it flat and dense. Hours, according to the site conditions, when the permanent layer at the bottom of the package condenses and reaches the demoulding strength, take out the breathable brick model and the nozzle seat brick model;

[0066] Step (2), permanent layer:

[0067] Put the ladle film coated with waste engine oil or wrapped with plastic film 1 # Hoist into the steel ladle shel...

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Abstract

The invention relates to a construction method of a composite steel ladle permanent layer. The construction method comprises the steps of constructing a ladle bottom permanent layer, a ladle wall permanent layer and a safety layer, and laying ladle bottom bricks, a ladle wall work layer and slag line bricks. The composite steel ladle permanent layer can be on line for use normally after laying construction is completed. According to the construction method, the safety layer is laid between the ladle wall permanent layer and the ladle wall work layer, and a safety layer material for building the safety layer is one of a magnesium-aluminum refractory material, an aluminum- spinelle refractory material, an aluminum-magnesium-chrome refractory material, a corundum refractory material and a magnesium-chrome refractory material. The material has high strength, corrosion resistance, thermal shock resistance and excellent linear change, the effective service life of a steel ladle permanent lining is greatly prolonged, potential safety hazards existing in an existing steel ladle work layer material are avoided, and the service life of a steel ladle work layer can be effectively prolonged.

Description

technical field [0001] The invention belongs to the field of iron and steel metallurgy, in particular to a construction method for a composite ladle permanent layer. Background technique [0002] The shape of the tire mold used for the permanent layer of the steel ladle is a simple truncated cone with a large top and a small bottom. Its material and function are generally heat preservation, correction of deformation of the steel shell due to long-term high temperature, and standardization of internal construction dimensions. Once the ladle brick is eroded to the permanent layer due to various reasons in the steelmaking production process, it is very easy to cause leakage accidents due to poor resistance. When the remaining 1 / 4 (about 40-60mm) of the cladding working layer is used, in order to ensure the safety of the ladle, the remaining working layer must be completely removed, which not only increases the labor intensity of the workers, but also causes a waste of materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D41/02
CPCB22D41/02
Inventor 郑晓辉
Owner FANYI HONGQI BURDEN
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