Alkali Resistant Brick Introduction
Alkali resistant brick as a kind of hot sales refractory bricks for furnace application in Rongsheng factory manufacturing with the cement kiln preheater, decomposition furnace, tertiary air duct. There are have good properties of high strength, stable volume, good alkali corrosion resistance. There are high quality refractory for sale cheap in RS company can provide standard size of alkai resistant brick specification and category as well as competitive price & high-grade quality fireproof brick products, other specification and size of alkali resistant fire brick according to customer requirements,welcome to contact us or email us for free quote or price list.
Alkali Resistant Brick Definition
The alkali resistant brick has the advantages of high load softening temperature, high temperature structure performance and good thermal shock stability; at the same time, Alkali-resistant bricks has the advantages of strong corrosion resistance, easy peeling and wear resistance. Refractory alkali resistant bricksovercomes the shortcomings of poor thermal shock resistance of common high-aluminum bricks, low erosion resistance of cement clinker, and low softness of phosphoric acid bricks. Firebrick is produced by adding an additive to increase the compressive strength. The alkali resistant fire bricks product has the characteristics of high strength, stable volume, good alkali corrosion resistance. Alkali-resistant brick is relatively common in cement kiln preheater, decomposition furnace, tertiary air duct. Alkali-resistant bricks are mainly used in open hearth furnaces, oxygen-blowing converters, electric furnaces, non-ferrous metal smelting equipment and glass industries, as well as some high-temperature equipment.
Alkali Resistant Brick Features
1. Refractory alkali resistant brick have stable volume
2. Refractory alkali resistant brick have high refractoriness
3. Refractory alkali resistant brick have good slag resistance
4. Refractory alkali resistant brick have good thermal shock resistance
5. Refractory alkali resistant brick have good alkali corrosion resistance
6. Refractory alkali resistant brick have good thermal shock resistance
Alkali Resistant Brick Classification
Alkali Resistant Bricks Can be Divided into Four Types
1. Alkali resistant refractory bricks common type
2. Alkali resistant refractory bricks high strength type
3. Alkali resistant refractory bricks high strength type
4. Alkali resistant refractory bricks heat insulation type
Alkali Resistant Brick Specification
1. Alkali Resistant Refractory Common Type Bricks Specification
Item |
|
Common type alkali resistant brick |
Al2o3 |
% |
25~35 |
Sio2+Sic |
% |
60~70 |
Crushing Cold Strength |
Mpa |
25 |
Apparently porosity |
% |
25 |
0.2mpa softening temp under load refractoriness |
℃ |
1350 |
Thermal shock resistance |
(1100℃)water,quenching, cycle |
10 |
Thermal conductivity |
350℃(w/m.k) |
1.3 |
Thermal expansion rate |
900℃ |
0.7 |
2.Alkali Resistant Refractory Ordinary Type Bricks Specification
Item |
|
High-strength type alkali-resistant bricks |
Al2o3 |
% |
25~35 |
Sio2+Sic |
% |
60~70 |
Crushing Cold Strength |
Mpa |
60 |
Apparently porosity |
% |
20 |
0.2mpa softening temp under load refractoriness |
℃ |
1300 |
Thermal shock resistance |
(1100℃)water,quenching, cycle |
5 |
Thermal conductivity |
350℃(w/m.k) |
1.4 |
Thermal expansion rate |
900℃ |
_ |
3.Alkali Resistant Refractory Arc Type Bricks Specification
Item |
|
Arc type alkali resistant bricks |
Al2o3 |
% |
25~35 |
Sio2+Sic |
% |
60~65 |
Crushing Cold Strength |
Mpa |
30 |
Apparently porosity |
% |
25 |
0.2mpa softening temp under load refractoriness |
℃ |
1400 |
Thermal shock resistance |
(1100℃)water,quenching, cycle |
10 |
Thermal conductivity |
350℃(w/m.k) |
1.3 |
Thermal expansion rate |
900℃ |
- |
4.Alkali Resistant Refractory Insulation Type Bricks Specification
Item |
|
Insulation type alkali resistant bricks |
Al2o3 |
% |
20~30 |
20~30 |
Sio2+Sic |
% |
60~67 |
60~67 |
Crushing Cold Strength |
Mpa |
15 |
20 |
Apparently porosity |
% |
30 |
30 |
0.2mpa softening temp under load refractoriness |
℃ |
1200 |
1200 |
Thermal shock resistance |
(1100℃)water,quenching, cycle |
5 |
- |
Thermal conductivity |
350℃(w/m.k) |
0.75 |
0.75 |
Thermal expansion rate |
900℃ |
0.6 |
- |
Alkali Resistant Brick Application
1. Ordinary type alkali-resistant bricks are mainly used in cement kiln preheaters, decomposition furnaces, and other air ducts.
2. High-strength alkali-resistant bricks are mainly used in cement kiln preheaters, decomposing furnaces, tertiary air ducts, vertical ascending flue, cyclone straight tubes and cones.
3. The arch-type alkali-resistant brick is mainly used for the cement kiln preheater and the tertiary air duct of the decomposition furnace.
4. The heat-insulating alkali-resistant brick is mainly used for the kiln mouth, kiln door cover and cooling machine of the cement kiln.
Alkali Resistant Brick Principle of Erosion
Alkali fireproof bricks of the mechanism alkali corrosion resistance is that it reacts with metal oxides at high temperatures to form a highly viscous liquid phase, forming a glazed protective layer covering the surface of the brick to block surface pores to prevent penetration and erosion of alkali gold. To the purpose of alkali corrosion resistance.
Alkali Resistant Brick Transportation Precautions
The transportation and storage of alkali resistant bricks must be protected against moisture, so as not to react with water in the air and reduce the performance of alkali resistant fire bricks.
Acid Resistant Bricks are Widely Used in the Chemical Industry of Advantage
1. High strength alkali-resistant bricks has excellent chemical stability, strong acid resistance and a certain degree of alkali resistance.
2. High strength alkali-resistant bricks of the size is accurate, the surface is smooth .
3. High strength alkali-resistant bricks have high hardness, resistance to sudden temperature changes.
Acid Resistant Bricks are Widely Used in the Chemical Industry of product Features
Acid resistant brick board has high acid resistance, good temperature and acid resistance, low water absorption, Alkali fireproof bricks is not easy to be oxidized at normal temperature, Alkali fireproof bricks is not easily contaminated by medium.
Alkali Resistant Brick After Sales Service - RS Factory
1.At present, the products of Rongsheng refractory brick manufacturers have been exported to more than 50 countries and regions such as Asia and Europe. No matter where you are from, Rongsheng firebricks company will provide you with quality products and sincere service for long-term and stable, strive for maximum customer benefits.
2.RongSheng refractory bricks factory have rich refractory raw materials and 20 years experienced in the refractory bricks manufacturing.Rongsheng firebricks factory can provide specification and category as well as competitive price & high-grade quality alkali resistant bricks products, alkali resistant brick can be customize according to customer requirement.