Übersetzung für "Feuerfeste steine" in Englisch

Refractory-quality, porous chromium oxide bricks can be produced according to the method.

Our refractory bricks can be divided into the following groups:

Such a low figure has not yet been achieved in any case for fireproof stones.

Fireproof ceramic bricks have been used for decades for the lining of industrial high temperature aggregates, for example furnaces.

In the cement industry, refractory bricks are used, for example as so-called rotary cement kiln bricks for the linings of rotary cement kilns.

This project concerns a modification or partial rebuild of a production line for refractory bricks.

Refrasil produces wide range of refractories: bricks, castables, monoliths...

To meet the needs of the wide-ranging applications, a large number of shaped, dense materials (refractory bricks, chamotte), shaped heat-insulating materials (lightweight refractory bricks) and unshaped refractory materials (heavy- and lightweight ramming mixes) have been developed, which are used for special high temperature applications.

Products include bricks, roof tiles, ceramic wall and floor tiles, sanitary products, decorative earthenware and porcelain, and fireproof bricks for applications in the steel and aluminium industry.

Surprisingly, I have found that the magnesium oxide required for the present invention can advantageously be obtained by comminuting used refractory bodies (bricks), i.e. refractory bricks which are recovered during the dismantling of metallurgical or glass furnaces, troughs and other facilities. Such bricks usually contain more than 85% by weight magnesia (MgO).

This known two-stage production technique has the advantage that refractory bricks are available after the second firing operation and that said bricks exhibit relatively little firing shrinkage.

DETAILED DESCRIPTION It is the object of the invention to make available a method of the type described above in which refractory bricks can be produced with advantageously low firing shrinkage and a good microstructure.

Hence, a porous chromium oxide material or refractory bricks respectively result from such a material, whereby an 18 to 20% open pore ratio can be achieved.

The invention relates to a flushing arrangement for a metallurgical vessel whose bottom and walls are lined by refractory bricks arranged in rows.

By working at very high temperature, replacement of consumable (like refractories) and mechanical components subject to wear out, make in broad sense maintenance one of the most consistent source of oost in industrial accounting, sometimes reaching lo - 13% of industrial cost.

The invention relates to a flushing arrangement for a metallurgical vessel comprising a metal outer shell, a bottom lined with a permanent lining, on which adjacently arranged refractory bricks are applied as working lining, and pipes inserted in recesses of the bricks at predetermined sites and having flat cross sections, through which flush gas flows.

However, refractory ceramic bricks, which have a relatively high iron oxide (Fe 2 O 3) content because of their raw materials, only comprise maximum hercynite contents of about 5% when they are to be used in mechanically heavily loaded regions.

In general, refractory bricks that are composed of granulations of refractory materials require binding for the grains of the granulation, in order to maintain the shape of the bricks.

Solid bricks are particularly compact fireproof bricks in shape of a cuboid, a column or a three-dimensional polygon with a mainly homogenous inner structure.

Zirconia-Coating ZR-O is preferably used as protection and interface for graphite and ceramic crucibles, refractory bricks and fibre ceramics as well as for coating kiln furniture, supports and trays.

Learn what price, sizes, materials, ecological refractory bricks, types, fuel, wood or coal, outside or pressing, bricks or tiles, clay and cement, and where and how to buy an oven or grill for outdoor or indoor, of various dimensions, measures and capabilities, for roasting, baking and grilling.

The ara is the refractory bricks cell located aside the glass kiln, where glassworks lay for hours to slowly cool down.

Crushed stone is used to produce heat-resistant concrete and its products for a full or partial replacement of ceramic and refractory bricks in masonry ovens.

The refractory metal in the rock may act as a barrier.

The spalling resistance of the refractory bricks produced is only good in certain circumstances.

Hence, the percentage-based composition of the refractory bricks is not altered.

Sintered dolomite may serve as the refractory basic material for the production of basic refractory bricks.

Shaped refractory ceramic products are known in the form of refractory bricks, for example.

The fireproof ceramic bricks are subject to thermal, mechanical and metallurgic wear.

The actual refractory bricks are installed on a layer of insulating bricks.

Suitably, the shape of the flushing plate corresponds to the contour of the neighbouring, adjoining side faces of the refractory bricks.