What is a non burning refractory If you know, please elaborate, thank you.

The blast furnace is the main smelting equipment at present, which has the characteristics of simple public welfare and large production capacity. Refractory brick linings occupy an important position in blast furnaces. However, in the production process, due to various functions, the refractory brick lining of the furnace wall is gradually eroded.

Therefore, in order to prolong the service life of high-temperature furnaces, it is necessary to reasonably select refractory brick linings. The selection method of refractory brick lining in each part is as follows: (1) The furnace throat is mainly affected by the impact and wear of the charge.

Generally, steel bricks or water-cooled steel bricks are used. (2) When the thin-walled structure of modern large-scale blast furnace is adopted, refractory materials with good chemical erosion resistance and wear resistance should be selected, among which high-density clay bricks are the most suitable and are usually used to replace brick linings. (3) The main failure mechanisms are thermal shock spalling, high-temperature gas erosion, precipitation of alkali metals, zinc and carbon, and chemical erosion of primary slag.

The brick lining should be heat-resistant....

Non-burning refractory is a kind of hydrocarbon refractory profile that does not need to be burned, by the fly ash hollow beads of component 35 80 as light aggregate, 5 30 aluminum dihydrogen phosphate as inorganic binder, 3 15 kaolin as curing agent, 2 18 muscovite powder as active material, 0 2 5 fiber and filler 25 50 water, mixing, pressing molding. Dried and cured at 150 or 300 °C. Huaheng The process is simple, and the production does not require high-temperature furnace equipment.

The bulk density of the product is 0 4g cm3, and the working temperature is up to 1250.

If the refractory material is 1800, does it mean that the material can be used under 1800?

If the refractory material is 1800, does it mean that the material can be used under 1800? Hello dear, 1. High refractoriness. At present, the working temperature of metallurgical furnace is generally between 1000 and 1800, and the performance of refractory materials should be able to meet the requirements of not being easy to melt.

2. High temperature structure strength. Various refractories begin to melt first before the melting temperature, reducing the structural strength. Therefore, the refractory material should not only have a high melting temperature, but also have the performance of not being easy to soften at high temperature under the load of the furnace masonry or other mechanical vibrations.

3. Good thermal stability. Metallurgical furnaces and other industrial furnaces and kilns cause uneven temperature of all parts of the material due to temperature fusion, and stress will occur inside the masonry to crack or peel off the material. Accuracy of the shape and size of refractory products.

The accuracy of the shape and size of the refractory products directly affects the life of the furnace, and the refractory products that meet the specified dimensions have less masonry filler, better air tightness, slag resistance and thermal stability than more fillers. The refractory material should have the ability to resist this corrosive effect. 4. Strong anti-slag ability.

Fire integrity refers to the ability of a building separator to prevent flame and heat from penetrating or igniting on the backfire side for a certain period of time when one side of the building is exposed to fire under standard fire resistance test conditions.

The fire resistance limit is for any building component, according to the time-temperature standard curve.

The fire resistance test is carried out from the time of fire to the time when the component loses its stability or integrity or thermal insulation, and the period of fire resistance is called the fire resistance limit, which is usually expressed in hours (h).

The two are not the same.

Reading guide] for the title, we need to understand what refractory materials are, for this point can not be clearly explained in one or two sentences. It will take us a certain amount of time to talk about it at length, but for the sake of now, I still want to let you know it briefly. Any boring explanation needs to have an angle, then, here we will choose the role of refractory materials as the topic.

Starting from its role, we will dig out the definition of refractory materials, so that people can understand this knowledge both simply and clearly. Let's start our main topic, I hope this article can give you some inspiration, and if you have any questions about this type, you can also consult us, or discuss with each other.

What is Refractory? A simple definition of refractory is that the refractory degree is not less than 1580 degrees Celsius, and it is a type of inorganic non-metallic material. Here we still have to mention the key word of refractoriness, for this word we refer to the refractory corresponding conical specimen, in addition to everything or without any external force load of the ant Feng clan, can fully resist the action of high temperature, and do not soften the melting of a Celsius temperature.

Nowadays, the word refractory alone is used to define this substance, which can no longer meet the requirements of refractory materials. 1580 is not absolute. The definition of refractory is now as:

A class of materials whose physical and chemical properties allow the substance to be used under high temperature conditions. This definition is also a relatively comprehensive definition that has been applied to this day. Let's talk about what it does.

Where are refractories generally used? What is the definition of these places? Let's take it slowly: now some metallurgy, chemical industry, petroleum, machinery manufacturing, silicate, power and other related industrial fields generally use this substance.

Especially in the metallurgical industry, the utilization rate and amount of refractory materials are the largest, accounting for 50% and 60% of the total output. According to the results of some market research, refractories are used in various fields of the national economy such as steel, petrochemical, electric power, non-ferrous metals, glass, machinery, boilers, cement, ceramics, light industry, and military industry. It can be said that refractories can ensure the production and operation of the above-mentioned industries and some basic materials that are indispensable for technological development.

We can say that refractories play an irreplaceable and important role in the development of high-temperature industry and production.

Through a brief introduction above, we not only understand the definition of refractory, but also have a general understanding of its general role. In modern industrial production, the continuous research and development of this material is necessary, so it is necessary to know the steps from the understanding.

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The main categories of refractories are: high alumina series refractories, silicon series refractories, and magnesium series refractories.

According to chemical properties, it is divided into: acid refractories, alkaline refractories and neutral refractories.

According to the mineral composition of the products, it is divided into: siliceous products, aluminum silicate products, magnesium, magnesium-chromium products and dolomite products. Carbon products, zirconium products.

The other is special refractory materials.

Bricks: alkali-resistant bricks, alkali-resistant heat-insulating bricks, clay bricks, high-alumina bricks, silica bricks, magnesia-chrome bricks, magnesia-aluminum spinel bricks;

The above are heavy bricks; Poly light bricks, clay light bricks, etc. are lightweight bricks.

Castable: alkali-resistant castable, (silicon carbide) anti-crust castable, steel fiber castable, high alumina castable, mullite castable, corundum castable;

Calcium silicate products, calcium silicate plates.

Ceramic fiber cotton, board, blanket, rock wool, glass wool, refractory brick, calcium silicate board.

The question is simple.

There are many refractory equipment that use refractory materials, and the refractory materials commonly used in each equipment are also different, and there are many classifications from the perspective of refractory materials.

There are many different classifications according to different classification standards.

Let's be specific.

Silicon carbide plate is a more common material!

It looks like silicon nitride on the surface.

Refractory refers to inorganic non-metallic materials with a refractory degree of not less than 1580. Refractories should generally have good resistance to thermal shock and chemical attack, as well as low thermal conductivity and expansion coefficient, as well as physical indicators. Refractory materials are widely used in metallurgy, building materials, chemical industry, petroleum, Wang Zhi machinery manufacturing, silicate, power and other industrial fields, and are the largest in the metallurgical industry, accounting for 50 60 of the total output.

There are many types of refractories, which are usually divided into ordinary refractories (1580 1770), advanced refractories (1770 2000) and special refractories (more than 2000) according to the level of refractoriness; According to the chemical characteristics, it can be divided into acid slow potato refractory materials, neutral refractory materials and alkaline refractories. In addition, there are refractories for special occasions.

The definition of refractory is no longer limited to whether the refractory is above 1580. At present, refractory materials generally refer to inorganic non-metallic materials used in metallurgy, petrochemical, cement, ceramics and other production equipment.

Zibo Baqiu Refractory **** more than 40 years of siliceous refractory seepage precursor production history, the company mainly produces Ba Nai brand glass furnace with silicon turn, coke oven silica brick, siliceous insulation brick and high-quality silica fire clay and other refractory materials.