Tuesday, August 28, 2018

Refractory Material for the Glass Kiln

                                                  Refractory Material for the Glass Kiln

1. Use the silica brick

2. Use the AZS brick

3. Use the zircon brick

4. Use the magnesia brick

Refractory material for the glass klin as hot refractory products, Rongsheng refractory factory according to different temperature and different working environments and working conditions plus different use parts of glass kiln select different refractory material.

The quality of refractory materials is related to the normal operation and normal service life of the kiln. Refractory material of quality is very important for every buyer to choose high quality and cost effective refractory materials. The high-quality refractory materials are not only more in line with the glass kiln. The conditions of use of the refractory material can also extend the service life of the glass kiln, thereby improving the quality of the glass produced by the glass kiln and increasing the production capacity of the glass klin , and saving a large amount of additional cost due to the irrational refractory bricks used in the glass kiln.


Refractory Material Classification for the Glass Klin





Refractory Material Feature for the Glass Furnace

1. Silica Refractory Bricks Features

Silica fire brick is an acid refractory material with strong slag resistance, low thermal expansion rate, low thermal conductivity with increasing temperature, high softening point of load, high abrasion resistance and good thermal shock stability.

2. AZS Bricks Features

AZS refractory bricks of structure is rigorous and uniform, the porosity is low,the corrosion resistance is good. The fused zirconium corundum brick has high corrosion resistance and high strength to the glass liquid.

3. Zircon Bricks Fatures

Zircon refractory bricks belonging to acid refractory brick,have strong slag resiatance, and the fire bricks with small thermal expansion rate and the high temp volume is stable.


4. Magnesia Bricks Features

Magnesia refractory bricks have high temperature mechanical strength and good slag resistance. Magnesia fire bricks have strong resistance to erosion and good resistance to alkaline slag, in addition, the refractory bricks have good resiatance to akline slag ,high load softening start temp.

Refractory Material for the Glass Furnace Application

1. Silica Refractory Bricks Applicate in the Glass klin

Silica refractory bricks is mainly used in the melting furnace and part of the flame space with the glass klin.

Port crown of the glass klin used in the high quality silica fire bricks.

Clarification area breast wall for the glass klin application in the silica fire bricks.

Front face wall and back gable with the glass kli is suitable in the refractory silica.

2. AZS Refractory Bricks Application in the Glass klin

AZS-36 is suitable the feeding tank wall and sides wall of the glass klin.

AZS-33 application in the melt zone of breast wall and tank bottom with the glass klin.

AluminaZC-M(α-βAlumina) Bricks is suitable in the sides wall and tank bottom.

3. Zircon Refractory Bricks Application in the Glass klin

Zircon fire bricks widely used in severely damaged parts of glass melting furnaces.

Upper gap of the zircon bricks using high quality zircon bricks.

4. Magnesia Refractory Bricks Application in the Glass klin

Magnesia refractory bricks mainly used in regenerators of the glass klin. Magnesia refractories for glass kiln are alkaline refractory products, mainly including fused magnesia bricks, high purity magnesia bricks, direct bonded magnesia chrome bricks, and magnesium zirconium bricks. Magnesium materials are mainly used in regenerators, and the amount is larger.

Refractory Material for the Glass klin Manufacturer in RS Refractory Factory

Rongsheng refractory bricks provides high quality refractory bricks for glass kiln all year round. Refractory bricks are cost effective and quality guaranteed. If you need high quality refractory bricks, refractory castable, refractory insulating lightweight bricks, please contact us to prove how Rongsheng refractory bricks factory can meet your requirements. Rongsheng refractory bricks can provide production capacity. Refractory material export certificate, quality certificate to confirm that Rongsheng firebricks company’s products and services are satisfactory to each purchaser.

Monday, August 27, 2018

Steel Ladle Refractory Mateial Catalogue

1. Refractroy used in insulation layer.

2. Refractroy used in permanent layer.

3. Refractroy used in working layer.

4. Refractroy used in slag layer.



Steel ladle is a container for carrying steel for steelmaking electric furnace to be transported to the tundish or pouring site by special rail. The steel ladle is divided into working layer and thermal insulation layer by refractory material. The refractory material for ladle is used according to the smelting steel type process and steel slag composition. Steel ladle lining is composed of a permanent layer, a working layer, a slag line layer and a heat insulation layer.the steel ladle each part is different, the refractory materials used are also different, so different parts are applied according to the characteristics of the refractory brick.

Refractroy material Used in Working Layer


1. Refractroy Material Used in Working Layer Characteristic

A. Refractroy material of working layer have high temperature resistance, high strength and good volume stability.

B. Refractroy material of working layer have better insulation performance and reasonable solidification time.

C. Refractroy material of working layer have good resistance to erosion, erosion and thermal shock resistance.


2.Refractory Bricks Application in Steel Ladle of the Working Layer

A. Magnesia carbon brick used in working layer for the steel ladle. Magnesia carbon refractory brick is mainly used for the working layer, magnesia carbon fire bricks is especially suitable for multi-furnace continuous casting. The MgO content in refractory bricks is generally around 76%, and the C content is between 15% and 20%. Refractory bricks characteristic is that the slag is less erosive, refractory magnesia bricks is resistant to erosion and flaking.

B. High alumina bricks used in working layer for the steel ladle. The alumina content in the refractroy brick is between 50% and 80%,alumina refractory bricks is mainly used for the working layer of the ladle.

C. Aluminum magnesia carbon brick used in working layer for the steel ladle, the fire brick is developed on the basis of aluminum-magnesium castables, alumina magnesia carbon brick is used for ladle lining and has a long service life.

If the steel ladle itself is also used for refining, steel ladle is also possible to select MgO-Cr203-A1203 series and MgO-CaO-C type refractories, mainly including: magnesia chrome brick, magnesia chrome aluminum brick, dolomite refractory brick , what’s more, the working layer is made of magnesium spray and alumina magnesia repair refractory material.

3.Refractory Castable Application in Steel Ladle of the Working Layer

A. Corundum spinel refractory castables are integrally cast and lining materials, corundum spinel refractory castables have the advantages of convenient construction and no joints.

B. Aluminum magnesium castables are mainly used for steel inclusions,refractory castable is characterized in that under the action of molten steel, MgO and Al2O3 in the castable react to form aluminum magnesium spinel, refractory casting improves the slag resistance and thermal shock resistance of the inner liner.

C. Magnesium ramming material for ladle joint filler, Magnesium ramming material is made of magnesium raw materials and additives. Magnesium rammming has the characteristics of corrosion resistance, erosion resistance and convenient construction. Magnesium refractory ramming is used for caulking around the bottom brick of the ladle and around the bottom brick of the tundish.

Refractroy Material Used in Slag Layer

1.Refractory Bricks Application in Steel Ladle of the Slag Layer

A. Magnesia carbon brick and magnesia chrome brick should be selected the slag line layer, refractory bricks are resistant to corrosion, slag corrosion, thermal shock stability and high temperature structural stability.Due to magnesia carbon refractory bricks and magnesia chrome bricks can overcome the structural spalling caused by the collapse of molten steel and slag.

B. Zircon refractory bricks are mainly used for the steel ladle slag line. The ZrO2 content in refractroy bricks are generally between 60% and 65%. firebricks are characterized by good corrosion resistance.

C. Magnesia carbon brick used in working layer for the steel ladle. Magnesia carbon refractory brick is mainly used for the steel ladle slag line, magnesia carbon fire bricks is especially suitable for multi-furnace continuous casting. The MgO content in refractory bricks is generally around 76%, and the C content is between 15% and 20%. Refractory bricks characteristic is that the slag is less erosive, refractory magnesia bricks is resistant to erosion and flaking.

Refractroy Material Used in Permanent Layer

1.Steel permanent layer requires low heat conductivity, good heat insulation performance, and requires sufficient room temperature and high temperature strength to resist the impact of molten steel for a short period of time and prevent the occurrence of wear accidents.

2.Clay fire bricks are used for the permanent layer, alumina magnesia carbon bricks for the bricks, magnesia refractory clay for the masonry, and the permanent layer can be made of high alumina refractory castable.

3.The fire bricks of the permanent layer should be made of alumina magnesia carbon bricks with good thermal shock resistance and the corrugated corrugated nozzle bricks with corrosion resistance and erosion resistance.

4.Blowing refractory bricks can be selected from chrome corundum fire bricks or chrome corundum spinel brick permeable bricks.

Refractroy Material Used in Insulation Layer

1.Ceramic fiber felt for ladle insulation in the steel ladle, the ceramic fiber felt have good characteristic of high compressive strength and long service life, low heat capacity, low thermal conductivity, easy to install and convenient to construct, the heat preservation effect is good and the performance is stable.

2.Aluminum carbon brick for ladle nozzle area, the alumina carbon refractory bricks have good characteristic of stable structure, erosion resistance, erosion resistance, and good thermal shock stability and long service life.

Steel bag bottom breathable brick with corundum refractory bricks or chrome corundum firebricks, the fireproof bricks have good feature of breathable bricks have high refractoriness, good thermal shock stability, good resistance to slag erosion and peeling resistance, and the load softening temperature is high, the creep is small, and the heat shrinkage rate is small.

Refractory Material Selection Condition for the Steel Ladle

1. Working conditions of ladle, such as tapping temperature, residence time of molten steel, type of cast steel, refining treatment.

2. The part of the ladle refractory in the ladle.

3. The alkalinity of the slag.

4. Working conditions and economic age of masonry ladle, steel ladle and bake ladle of steel mill.

5. Economics

Refractory Material for the Steel Ladle Supplier in RS Refractory Manufacturer

RongSheng refractory manufacturer not only supply the refractory bricks and refractory castable in the working layer, insulation layer, permanent layer, slag layer but also provide the upper and lower nozzles of the ladle adopt the advantages of corundum and corundum spinel as the main refractory raw materials, excellent stability, outstanding oxidation resistance and outstanding anti scour ability.

Rongsheng refractory bricks factory supply aluminum carbon, aluminum zirconium carbon, magnesium spinel, high temperature fired skateboard with high strength, erosion resistance, good thermal stability.
  

Friday, August 24, 2018

Magnesium Aluminum Spinel Brick




Magnesium Aluminum Spinel Brick Introduction

Magnesium aluminum spinel in magnesia alumina spinel refractoryh bricks is a generic name for minerals with the same crystalline structure. Generally, mg-aluminum spinel refractory refers to the general structure of MgAl2O4 or MgO·Al2O3, that is, the magnesium aluminum spinel is prepared from high-purity materials, has good corrosion resistance, thermal shock stability. Magnesium aluminum spinel refractory bricks have a few anti-flaking properties. Magnesium aluminate spinel firebrick is the finest advanced refractory material.

Magnesium aluminum spinel brick is a magnesia brick with magnesium-aluminum spinel as the main mineral formed by adding alumina to the furnish to improve the thermal stability of the magnesia brick. Magnesium-aluminum spinel brick is made of high-quality magnesia with low calcium content and industrial alumina powder. Magnesia alumina spinel is formed by high pressure forming and high temperature firing. Magnesia alumina spinel refractory brick has good resistance to quenching and heat, Magnesia alumina spinel firebricks has good corrosion resistance to fluxes such as iron oxides and alkaline slag.

The amount of magnesium aluminum spinel bricks in the production of magnesium-aluminum spinel bricks is not as high as possible. As the amount of spinel increases, the thermal shock resistance is better, but the strength (especially the flexural strength) is caused by the mismatch expansion. ), with Al2O3 as the standard, the Al2O3 in the product should not be greater than 15%~20%, preferably 10%~18%.

The main impurity in magnesium aluminate spinel bricks is SiO2, which should not exceed 1.5%. The advantage of magnesia alumina spinel is that it has good thermal shock resistance. During the process of use, it reacts with clinker to form a thin layer of calcium aluminate protective layer on the surface of the spinel brick, magnesia alumina spinel refractory bricks makes the liquid phase difficult to penetrate and resists peeling performance.Direct combination of mg-chrome bricks are easy to hydrate, the thermal conductivity is large. The temperature of the kiln cylinder is higher than direct combination of mg-chrome bricks.

Magnesium Aluminum Spinel Brick Features

1, Magnesium alumium spine firebricks have good thermal shock, in the process of use will react with clinker, and then form a layer of very thin calcium aluminate protective layer on the surface of the brick. Make the liquid not easy to penetrate.

2, Magnesium alumium spine refractory bricks anti-flaking performance is better than direct combination of magnesia chrome brick. The service life of the cooling zone and transition zone in the kiln can be doubled compared with the direct combination of magnesia chrome bricks. However, it is slightly inferior to the direct combination of magnesia chrome bricks in terms of corrosion resistance.

3. The sintered spinel brick is easy to hydrate, and the thermal conductivity is large. The temperature of the kiln is higher than that when the magnesia chrome brick is directly combined. Pay attention to these issues when using them.

4.The physical and chemical properties of magnesium aluminum spinel bricks are characterized by small thermal expansion, good thermal shock stability, stable chemical properties, and strong resistance to alkaline slag.

Magnesium Aluminum Spinel Brick Specification


Item


Brand
Mg0
(%)

Al2o3
(%)
Sio2
(%)
Bulk Density
(g/cm3)
Apparent Density
(%)
Cold Crushing
Strength
(Mpa)
Refractoriness under Load of 0.2 Mpa
()

ThermalShock
Stability(1000,water,quencing,cycle)
RS-85A
85
9
1.0
18
2.95
45
1700
100
RS-85B
82
9
2.0
18
2.90
40
1700
80
RS-85C
80
9
3.0
19
2.85
40
1650
70
RS-93A
93
5
1.0
18
2.95
45
1700
80
RS-90B
90
5
2.0
18
2.90
40
1700
70

Magnesium Aluminum Spinel Brick Application

Magnesium alumium spine firebricks main use: First, instead of magnesium chrome sand, magnesium-aluminum spinel brick is used in cement rotary kiln, which not only avoids chrome pollution, but also has good resistance to spalling

second, Magnesium alumium spine firebricks is used to make ladle castable , greatly improve the erosion resistance of the steel lining. Magnesium alumium spine is widely used in steelmaking refractories. The preparation of high quality pre-synthesized spinel provides new raw materials for the production of amorphous and shaped high-purity refractories.

Why Choose Magnesium Aluminum Spinel Brick from RS Refractory Bricks Manufacture 

1.Do’t Worry About The Magnesium aluminum spinel brick Price

We are the manufacturer of refractory bricks, provide high quality and low price silicate brick products, giving the ex-factory price.

2.Don't Worry about Magnesium aluminum spinel brick Quality

We can provide quality inspection certificates to ensure that you can buy us with guarantee quality products. Provide refractory brick certificates, such as, CE,ISO 9001 2008 Standard,ISO 9001 2015 Standard,OHSAS18001:2007 Standard and so on.

3.Don't Worry about Our Professional Level

We have professional technical guidance, all your technical doubts, our professional engineers answer your any questions.Solve all products issue you encounter.

RS Refractory Factory Aim is Customer First, Quality First.

Welcome your inquiry, we provide pre-sales and after-sales service, one-stop service.