Special high-temperature refractory bricks

In warship power device of large, marine fuel boiler is the heart of it, if the refractory brick hearth collapsed, the warship will be unable to sail, and can not be repaired in a short period of time, will cause the occurrence of very great accident, so can the development of a
new type high-temperature refractory bricks then, we can avoid this situation happened. The special high-temperature refractory bricks must withstand strong fire baking, the endfire resistance to high? This is something we must do the experiment, the general point of gold is already very high, but the refractory brick to withstand temperature must also high than its melting point can be.

General refractory temperature can reach 1500 degrees Celsius even a super high temperature refractory material, but for many refractory materials, the degree of every increase of 50 degrees Celsius would have been difficult to exceed. Like this on the battleship using ultra high temperature refractory brick products, even the best domestic refractories and refractory brick, the use of such to any field can play a very good advantage. It is not only the heat resistance is good, the service life of the refractory material in general than is relatively long compared.

Special high-temperature refractory brick is refractory and heat insulation, practicality is very strong, but compared to the refractory brick in general, this ultra high temperature refractory brick products can not be beyond the.

How to distinguish refractory refractoriness according to the refractory material

Refractory material is essential for industrial furnace lining materials, in the progress of science and technology, furnace generation upgrading, resulting in the production process of refractory brick also has been greatly improved, and these promotion focus on refractoriness, refractoriness, slag resistance, spalling resistance, at the same time, types and applications refractory materials also have multiple orientation change, different refractory, different materials, refractory material refractoriness is generally determined by the material.

Most of the refractory component is composed of a variety of elements and composite materials, all kinds of material melting point are not the same, when the temperature reaches a certain degree, the first is the emergence of the liquid phase, as the temperature continues to rise and then completely fusion, which is a gradual process, and the so-called different material brick refers to difference of main content of brick for example, fireclay brick, most of its raw materials for the content of clay, high alumina brick refractory material, but also to the aluminum content to define high aluminum brick level, below, are some of the common brick refractory:

1, clay brick: 1610 ~ 1750℃

2: silica brick , 690 to 1730℃

3, the crystalline silica: 1730 ~ 1770℃

4, hard clay: 1750 ~ 1770℃

5, high alumina brick: > 1770 ~ 2000℃

6, magnesia refractory bricks: > 2000℃

7, dolomite brick: > 2000℃

Xinmi Changxing refractorymaterial is a veteran of the well-known enterprises refractories industry for many years, a variety of refractory brick developed production, has obtained the widespread approval and support of the Changxing market, with full enthusiasm, high quality, perfect after sale service, welcome new and old customers!

Refractory material how to use can have anti damage ability

How to use Refractory let it has anti damage ability? The development of matching with refractory material according to the clinker rotary kiln each work with the different mining conditions, in a targeted manner to configure different anti damage of refractory materials, and considering the basic matching problem of each work tape lining service life, reduce maintenance times to stop the kiln, each work with lining, reach namely damage resistance independent and phase the purpose of matching cycle. Lining material preheating zone selection of good chemical stability, alkali erosion leaf wax stone brick and strong, the high siliceous raw pyrophyllite with low alkali, alkali resistant bricks made of this raw material, whether or not to burn the Chengdu firing with alkali resistance strong, but the strength is high, nearly doubled than clay brick life.

The completion of the industrial experiment stage in Krivoy Rog coking plants, coke oven masonry and recommended room three thermal repair methods: flame gunning; using oxygen to the ceramic welding; using the exothermic material (heating material) to repair. The process principle of common: with the help of heat generated to form a protective layer on the surface of refractory composite masonry mending surface.

Flame gunning method of flame gunning refractory products, powder particles melt in the liquid or gaseous fuel flame, and was sent to the surface to be repaired. At this point the masonry was nozzle flame supplementary heating, so using this method may not have special restrictions on temperature is put forward in this paper, and can adopt refractory powder cheaper to obtain high-quality gunning layer. Principle of ceramic welding method is adding to the material of strong oxidant (exothermic material) – aluminum and silicon. Wind transport by means of oxygen jet flame method, oxidant and refractory powder to the surface to be repaired.