Sintered AZS Bricks for Glass Kiln

Sintered AZS brick for glass kilns is a kind of refractory material used in glass kilns with zircon and alumina as the main raw materials. AZS stands for A12O3, ZrO2, and SiO2 respectively. It is an indispensable refractory for key parts of the glass kiln. The material can be in direct contact with the glass liquid and can resist the erosion of the glass liquid at the same time. Features of sintered AZS bricks for glass kiln 1. High refractoriness. Sintered AZS bricks have high refractoriness and can reach above 1790°C, which is a high-grade refractory material. 2. High softening temperature under load. Sintered AZS bricks have fewer impurities, and the load-softening temperature of aluminum-zirconium products can be above 1550-1650 °C. 3. Good thermal shock resistance. Sintered AZS bricks for glass kilns have good thermal shock resistance. 4. Good chemical corrosion resistance. Aluminum-zirconium refractory products are resistant to acid or alkaline slag, molten metal erosion, oxidation, and reduction reactions, and are enhanced with the increase of AL2O3 content and the decrease of harmful impurity content. The development of my country’s glass industry is relatively rapid, and it has been at the forefront of the world in recent years. The rapid...

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How to Choose High-Temperature Flue Refractory Bricks?

The high-temperature flue with a diameter of 2 meters needs to use high-quality refractory bricks to ensure its stable operation and long-term use. When selecting high-temperature flue refractory bricks, the following factors need to be considered: Refractory grade: High-temperature flue requires the use of refractory bricks that can withstand high temperature and flue gas erosion. Commonly used fire resistance grades include SK-30, SK-32, SK-34, SK-36, SK-38, etc. Generally speaking, bricks with high refractory grades such as SK-36 or SK-38 can be selected for high-temperature flues with a diameter of two meters. Composition of materials: High-temperature flue refractory bricks are mainly composed of high-temperature refractory materials such as alumina and silicate and usually need to add a certain proportion of additives such as binders and combustion aids. Phosphate high alumina bricks with stable composition and reliable quality need to be selected. Brick shape and specification: The brick shape and specification need to be selected according to the actual shape and size of the flue. Common brick shapes include ordinary rectangular bricks, trapezoidal bricks, wedge-shaped bricks, etc. Common specifications include 230mm*114mm*65mm, 230mm*114mm*75mm, etc. Manufacturer reputation: The quality and performance of refractory bricks are closely related to the manufacturer’s production process, equipment, and...

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Four Links in the Construction of Steel Fiber Castables

Mix: 1. Equipment and tools: forced mixer, bucket scale, vibrator, tool shovel, trolley, etc. 2. Water consumption for construction: The amount of water added to steel fiber castables should be controlled at 7%-8%, and pure drinking water is required. 3. Requirements and control of construction environment temperature: The temperature of the construction site should be between 10-30 degrees Celsius. If the temperature of the construction site is lower than 10 degrees Celsius, it is necessary to adopt warming measures for construction. If the temperature at the construction site is higher than 30 degrees Celsius, necessary cooling measures must be taken before construction. Otherwise, it will cause difficulty in construction or performance degradation of this product, making it difficult to construct. 4. Mixing: Pour the bulk material and the small bag in the bag into the mixer for 3-5 minutes to make them mix evenly. When adding water, add 2/3 of the standard amount first, and then add the remaining water according to the specific construction requirements. Pour it into the mixed dry material and stir it fully for not less than 1–3 minutes to make it have suitable fluidity. 5. Precautions: The tools used in the construction process, such as...

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Application of High Alumina Heat Storage Ball

High alumina heat storage ball is a new type of heat storage material, which has extremely high thermal stability and thermal insulation performance and is widely used in solar energy, geothermal energy, and industrial production. The appearance of the high alumina heat storage ball is spherical, with a diameter ranging from 3 cm to 10 cm. It is composed of high-purity bauxite and other mineral materials and is made by high-temperature sintering technology. High alumina heat storage balls have the characteristics of high specific surface area, bulk density, heat capacity, and thermal conductivity, and can quickly absorb and release heat energy at high temperatures. High alumina heat storage balls are mainly used in solar and geothermal heat storage systems, which can be used to store solar or geothermal energy so as to release heat energy when needed. Solar energy and geothermal energy are two clean, unlimited energy sources, but they both have a common problem, which is instability because they depend on factors such as weather and geological conditions. High alumina heat storage balls can effectively solve this problem, using its excellent heat storage performance, so that energy can be continuously supplied when needed. In addition, high alumina heat storage...

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How to Customize High Alumina Bricks?

To customize high alumina bricks, you can follow the steps below: Determine the use and specification requirements of high-alumina bricks: high-alumina bricks can be customized according to different uses and specifications, such as high-alumina bricks for heating furnaces, high-alumina bricks for sintering kilns, etc., specifications and performance of high-alumina bricks for different purposes Requirements also vary. Therefore, before ordering high alumina bricks, it is necessary to determine their specific uses and specifications. Choose a refractory material manufacturer: choose a refractory material manufacturer for customization, which can guarantee the quality and performance of high alumina bricks. Submit custom requirements: provide the selected refractory manufacturers with detailed requirements such as specifications, sizes, and quantities of high-alumina bricks, as well as relevant information such as the use environment and conditions. Communicate and confirm with the manufacturer: refractory material manufacturers will design and manufacture high-alumina bricks according to customer requirements, and need to communicate with customers to confirm the material, size, shape, quality, and other issues of bricks, and determine relevant technical standards and inspection methods. Confirm the order and sign the contract: After the two parties confirm the customized plan and price, sign the relevant contract to determine the delivery date, payment method,...

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How Much is a Ton of JM26 Mullite Brick?

JM26 mullite brick is a common refractory material, which is often used in lining, heat insulation, and heat preservation of various high-temperature furnaces. Due to the different production costs and market demand of different manufacturers, the price of JM26 mullite bricks will also vary. Lightweight mullite bricks are divided into JM23, JM26, JM28, and JM30 according to the grade, and are mainly divided into 1350 mullite bricks, 1450 mullite bricks, 1550 mullite bricks, etc. according to different operating temperatures. The performance and application of lightweight mullite bricks: high refractoriness, up to 1790 ℃. The load softening start temperature is 1600～1700℃. Normal temperature compressive strength 1.5-4.5MPa. Good thermal shock resistance. Generally speaking, the price of JM26 mullite bricks will be affected by various factors such as raw materials, production technology, transportation costs, market demand, etc. According to changes in market conditions and supply and demand conditions, the price of JM26 mullite bricks may fluctuate. Therefore, it is necessary to determine the price of JM26 mullite bricks according to specific market conditions and quotations from suppliers. It is suggested that you can consult Xinhongji Refractory, or consult local suppliers or manufacturers to obtain more detailed and accurate price information.

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The Main Function of the Refractory Ball

Refractory ball is a kind of ball made of industrial alumina and refractory kaolin through scientific formula, forming, and high-temperature calcination. It is mainly divided into high-alumina refractory balls, silicon refractory balls, magnesium-aluminum refractory balls, porcelain Balls, etc., which are suitable for converters and shift furnaces in the sulfuric acid and fertilizer industries, and high-alumina refractory balls are suitable for hot blast stoves, heating shift furnaces and other equipment in urea, steel, and other industries. The main function of the refractory ball in the actual use process is that it has good high-temperature resistance and high hardness. Putting the refractory ball evenly into the heating furnace can evenly distribute the gas, and the uniformly dispersed gas can reduce the impact on the gas. The role of the catalyst prolongs the service life of the catalyst, and at the same time, it has high hardness, so it can support the heating object in the heating furnace. The working principle of the refractory ball is to divide the airflow into small streams by many small balls. The airflow flows through the heat storage body for a period of time, forming a fierce turbulent flow, which effectively breaks through the boundary layer on...

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Difference Between Lightweight Insulation Bricks and Refractory Bricks

Lightweight insulation bricks are generally used to keep warm and reduce heat loss, so they generally do not come into direct contact with flames, while refractory bricks can directly contact flames, and sometimes the temperature can reach more than 1,000 degrees, so the two have a great deal of difference. The big difference, today Xinhongji Refractory will give you a brief introduction to the difference between insulation bricks and refractory bricks. 1. Thermal insulation performance The thermal conductivity of general insulation bricks is about 0.2-0.4 (average temperature 350±25°C) w/m.k, while the thermal conductivity of refractory bricks is above 1.0 (average temperature 350±25°C) w/m.k, so you can see The thermal insulation performance of the thermal insulation brick is much better than that of the refractory brick. 2. Refractoriness Generally speaking, the refractoriness of insulation bricks is much lower than that of refractory bricks. Usually, the refractoriness of insulation bricks is below 1400 degrees, while the refractoriness of refractory bricks can reach more than 1500 degrees. 3. Density The density of thermal insulation bricks is generally 0.8-1.0g/cm3, while the density of refractory bricks is basically above 2.0g/cm3, so refractory bricks under the same volume are heavier than thermal insulation bricks. Insulation bricks...

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The Role of Physical and Chemical Indicators of Corundum Mullite Bricks

Corundum mullite brick is a material with high performance and high refractoriness, which is widely used in metallurgy, chemical industry, construction, and other fields. Its physical and chemical indicators include volume density, porosity, compressive strength, flexural strength, refractoriness, thermal conductivity, etc. These indicators determine the performance and application effect of the material in different applications. First of all, the bulk density of corundum mullite brick is an important physical and chemical index, usually between 2.2-2.9g/cm³. The lower density indicates that the material has the characteristics of lightweight, lightweight, and large volume, which can reduce the overall load of the building and reduce the self-weight of the structure. In addition, the density directly affects the thermal conductivity and refractory performance of corundum mullite bricks. The lower the density, the smaller the thermal conductivity and the better the refractory performance. Secondly, the opening rate is another important physical and chemical index of corundum mullite bricks, usually between 10-30%. This value directly determines the porosity and airtightness of the material and has a great influence on its thermal insulation performance and fire resistance performance. The larger the porosity, the higher the porosity of the brick body, the lower the density, the smaller the...

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Pouring Method of Corundum Castable

How to pour corundum castables during construction actually has certain instructions. We must pour according to the instructions used to prevent secondary rework or damage. Then how do we pour? Next, Xinhongji Refractory will give Let me give you a brief introduction: 1. Stirring of corundum castable The corundum castable can be stirred by a mixer. Usually, we first put the castable into the mixer, stir the dry material for about 2 minutes to make the color uniform, and then add 6-8% of the weight of the castable to stir until the color is uniform. That’s it. It is strictly forbidden to return the material to stir and add water for the second time! 2. Vibration of corundum castable Vibration is used, and the thickness of each layer of pouring should not exceed 400mm. Each construction site should not be vibrated for a long time or be vibrated by hand. It is best to use a plug-in vibrator or a plate vibrator for pouring construction. 3. Maintenance and demoulding of corundum castables The corundum castable can be demoulded 24 hours after pouring, and cannot be watered during curing. Usually, the curing temperature is 5-35°C, and it can be baked after...

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