How To Judge The Quality Of Fire Clay Brick

Produced with unique advanced technology, the clay and high alumina heat insulating bricks possess the characteristics of high intensity for pressure and good thermal shock stability. The use of the bricks can reduce the heat capacity of kiln walls and promote the heat efficiency of kilns. The product is applicable for constructing industrial kilns and inner lining of kilns.

Fire clay brick is cheap and durable. It can be used for fire protection, thermal insulation, sound insulation and tundish castable moisture absorption. Therefore, it is widely used in

industrial production. The scrap bricks can be reused as aggregate.

Fire clay brick accounts for an tundish slag dam important position in the refractory industry. The most important feature of fire clay brick is that the raw materials can be obtainded locally.

When purchasing fire clay bricks, magnesia carbon brick some professional knowledge is needed and some principles should be followed.

1)Take your need into account, such as specifications and materials.

2)Select appropriate manufacturers. Shop around and capare the price before you buy. Also pay attention to the credibility of manufacturers, after sales service, product quality

and service attitude.

3)After selecting a manufaturer, slide gate fire clay give a visit to the factory to understand the strength of manufacturers, scale, production qualification, production capacity and evaluation on

the product from other customers.

4)Pay attention to the proper refractory castable use of fire clay brick in the production and the implementation of safety measures so as to make full use of fire clay brick, reduce unnecessary

losses, extend the service life ansd reduce the cost.

Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on.

Introduction of Changxing Refractory self-flow castable

According to the solid theory and the actual service condition of refractory material, Changxing Refractory developed the high-tech self-flow castables after a series of test. Without vibration, self-flow castables can be degassed and leveled by gravity and thereby become compact.
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Do you know how the slay ball content influences quality of ceramic fiber paper

The slay ball density is 10 times more than ceramic fiber paper, if the content is too high, it will change the original arrangement structure of the fiber.Ceramic fiber paper’s refractory fiber board density range is 200±20kg/m3. Slay ball’s density range is 2800-3200kg/m3, is 10 times more than ceramic fiber paper. So the content of slay ball directly influences the quality of ceramic fiber paper.The high insulating castable content means lots of crystal grain in ceramic fiber paper, making the flatness and evenness worse. From the surface, some small raised can be seen. The internal fiber bulk’s structure of ceramic fiber paper with good evenness is tight and closed, so the thermal insulation is better. refractory material The internal fiber bulk’s structure of ceramic fiber paper with high slay content becomes worse , holes becomes larger, so making the alumina brick closure property worse, convection heat transfer increases, total heat transfer coefficient increases. All of the above lead to the worse of thermal insulation.The slay ball change the change the original arrangement structure of the fiber, widen the space of fibers, heavily lowering the strength of ceramic fiber paper, once the strength becomes lower, it will leading to the abradability and electrical insulation of ceramic fiber paper worse,refractories reducing the heat insulating ability and utilization rate of ceramic fiber paper.So, we can see it that the amount of slay-removal steps directly influences the slay ball content, then influences the quality of ceramic fiber paper.Changxing ceramic fiber paper is produced by 9 slay-removal steps, the slay ball content is lower than similar products, so the abradability and electrical insulation of ceramic fiber paper is better.

ceramic fiber module has more technology advantages

(1) low density. Ceramic fiber fold module furnace lining is lighter as 70% than light-weight insulation brick lining, high insulating brick as 75_80% than mortar lining, so that it will reduce the stress on the steel structure of furnace, extend furnace’s operated time.

     (2) low heat capacity .castable refractory material  The heat capacity of furnace lining material is direct proportion to the weight of furnace lining, low heat capacity means that furnace absorb less heat during operated, and temperature rise fast. Heat capacity of ceramic fiber is just as 1/7 as light weight clay ceramic brick, it reduces energy consumed heavily, especially it makes a great effect for heating clay insulating bricks furnace’s energy saving.

     (3)Low thermal conductivity. When Ceramic fiber module is in 400C temperature, thermal refractory fiber board conductivity is less than 0.11, in 600, is 0.22, in 1000, is less than 0.28. Is about 1/8 as light clay brick,

     Great thermal shock resistance and mechanical shock resistance. Ceramic fiber module is pliable, it has a great resistance to heavy mechanical shock and thermal shock.

     (5)Simple construction. insulating castable Its special anchor type solves the problem that constructed slowly by traditional module, folded module will be inflated and extrude each other after untied. Furnace lining can be used at first time after construction without drying and protect.

     Till now, energy-saving, environmental protection and voiding glob warming has became the focal refractory material point in the whole world, material costs will become a bottleneck in the development of the steel industry. So that people care the heat loss in industry furnace more and more.According to the statistics, continuous system furnaces with Changxing ceramic fiber module, saving rate is 3% to 10%;batch furnaces and thermal equipment energy-saving rate is 10% to 30%, or even higher.

     Modular ceramic fiber alumina brick can extend the use of the kiln lining life and reduce the furnace heat loss, a new generation of applications crystalline ceramic fiber composite module can not only improve the cleanliness of the furnace, to improve product quality, but also can play a good energy saving effect. Therefore, industrial furnaces, especially in the steel industry furnace should be designed to maximize the use Changxing ceramic fiber modules as furnace linings, should make full use of the old furnace repair time, will lay bricks or layers to the ceramic fiber blanket lining modular structure, which is also an important measure to iron and steel industry to achieve sustainable development.

Ceramic fiber module application（2）

Changxing ceramic fiber folded covering agent blanket module adopts Changxing ceramic fiber blanket, folded into accordion-like according to certain width, then embed the anchoring into module and folded and compressed. Changxing modular fiber do not contain any binder. Folded blanket will jam each other in different directions without gaps after the lifting of the strapping. Figure 2 schematic for folding compression module.

     Installation method firebrick refractory sale of Changxing ceramic fiber module in furnace wall, as shown in figure 3. Before module installation, it is need to welding short anchors (head with thread) on furnace wall. And then covered with a layer ladle slide gate of normal Changxing insulation rock wool, thickness 15~20 mm. The module back bead at the center of the hole and short anchor pin alignment, make anchor nail head into the module on the hollow tube, will cooperate with anchor nail head screw nut in a socket wrench head sleeve, insert the socket module of hollow casing, rotate the wrench, tighten nut to anchor nail head. Nut, ceramic fiber felt screw anchor nail and back bead connected in this way, thus the module fixed on the furnace shell.

      Reinforcement ladle castable plate on the back layering is very important, playing the role of reinforcement of bolted joints. Figure 4 shows the shape of after module installation. When the module is installed, folding directions must stagger, Horizontal and vertical module must be installed interval. The aim is to: when all installed, removed the bundle after, let module can free expansion, will fill the gap.

     Changxing refractories ceramic fiber module installation process is simple and convenient, But in strict accordance with the requirements of each step,  Suppose if welding short anchor nail is not secure, will cause the module overall fall off wall collapse and other major accidents, if the direction of module folding did not stagger when installation can lead to a module cannot be subject to uniform pressure and mobility.

Advantage of Fireclay Insulating Brick

No radiation, green environmental protection, can be widely used in all kinds of public buildings and home interior decoration. Installation of cement, saving a lot of material, manpower and time. Zibo light clay brick reduces the air pollution caused by the formation of cement burning, which is fit for the requirements of low carbon environmental protection.

The carrier lifetime for more than 70 years, long-term renovation of more than 20 years of life, such as how many habits regional climate and environment. Compared with international stone aluminum-plastic plate, the same file quality aluminum single plate and steel hanging, reduce bearing 30%-90% covering agent


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