Carburant,Refractory Material,Refractory Product,Refractory Company,Refractory Mortar

Carburant

• Name: Carburant
• Products Id: a69
• Advantage: Less impurity content, recovery carbon stable with obvious effects, fixed C can be more than 93%
• Delivery Time: 30-60 Days
• Products Used:

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.

Formation of smelting furnace slag layer

     Infiltration of molten state in refractories copper matte with good mobility. Due to the surface in the reaction tower refractory lining is covered with a layer of dense with magnetic iron oxide for hanging slag layer is mainly composed of, so he struck the wall surface matte does not directly penetrate into the brick body, but first of all along the silicate slag channel infiltration within the material and the interaction and slag, slag at different depth generate Cu or Cu2O material.

    Reaction tower wall surface slag although direct intrusion effectively prevents the copper matte, but did not completely eliminate the erosion caused by the matte of lining. Through the slag layer, there are still a small number of matte can penetrate through, and then along the brick body pores or cracks penetrate within the capillary channel brick. Because of the more close to the brick center, oxygen potential is higher, so into the brick body after the copper matte is prone to oxidation reaction. After reaction, the generated Cu2O exists between the lining the main crystal and the matrix, and no penetration into the other grains.

    Molten copper oxide (CuO-Cu2O at 1140 DEG C when the low total soluble) will cause the increase of permeability brick thermal conductivity, the resulting expansion of strong diathermy, lining spalling and, in which Cu is oxidized to CuO, the volume expansion of 75%; oxidized into Cu2O, volume increased by 64%. Therefore, from the microscopic structure, corrosion of matte on the reaction tower lining is mainly for the chemical structure of permeability, copper matte and the resulting stress reaction.

Application of mullite materials in rotary kiln

       Mullite aluminum silicate formation at high temperature minerals, the magnetization roasting rotary kiln lower process temperature, process characteristics of resistance, corrosion resistance, thermal shock resistance, mullite SiC composite prefabricated brick with mullite materials and silicon carbide material composition and mullite SiC castable method of composite masonry, at the same time refractory materials at high temperature with different proportions, to improve the thermal stability of refractory materials, delaying the ring material erosion of refractories and destructive effect, slow ring phenomenon, obtains a good application effect.

      Masonry of refractory materials has also been a corresponding improvement. The composite precast slabs by anchor is welded and fixed on the kiln body, between two rows of brick layer with light castable and wear resistant pouring material filling, ensure the integrity, stability and thermal insulation refractory. In building process, in order to prevent the kiln rotary kiln in emphasis, built after four rows of prefabricated brick, turn to the top and then laying four lines. After the completion, in turn rotary masonry.

    Through the above method, to ease the interaction of refractory materials and materials, delaying ring phenomenon. And the use of masonry composite prefabricated brick and abrasion resistant castable refractory material to strengthen the strength, processing node ring for refractory material damage, repair cycle is short. Through the practice, refractory maintenance cycle from 2 to March was extended to 1 year, improve the rotary kiln operating rate, with significant economic benefits.

Refractory material storage requirements

Selection of refractory materials friends all know the requirement is quite strict, for refractory material in storage requirements you know how many? Below to introduce you to:

When the first use of refractory material is the site of the us to put it in the warehouse, do not put in open areas, this is easy to cause the refractory materials affected with damp, strength and other performance as before, not in use when the effect is very good. When placing the refractory material in the warehouse do not all piled up in a block, which is not conducive to use when we are looking for, so we piled according to categories labeled put good; refractory material not easily fixed damp most easily, so we should be placed in the moisture inside the warehouse, the refractory material which is easy to form a block as far as possible not to high stacking them, if the outer packaging Institute of refractories placement of damaged it to replace the outsourcing, to avoid leakage or moisture; in the outermost layer of refractory materials we try to put a time limit, the use of time to first select the use, avoid the expiration. So when we stacked refractory material must be careful.

The content of the refractory material stacking, for what is the requirement of knowledge you have a certain understanding of it, if you want to ask about refractories for more knowledge can consult us freely.

World Crude Steel Production in 2013

It is said by WSA that world crude steel production reached 1,607 megatonnes (Mt) for the year 2013, increased by 3.5% compared to 2012. Furthermore, the growth came mainly from Asia and Middle East while crude steel production in all the other regions decreased in 2013 compared to 2012.

From the steel production data in WSA, it is concluded that refractory products are in higher demands in Asia and Middle East in the past year. The 2014 demands in those two regions are not still sure, increase and decrease are both possible, while there is no doubt that refractory and insulation products at a relativily stable and big quantity are required for steelmaking plants every month. Asia and Middle East are still main refractories market with much potential by now.

For more specific information about refractory and insulation products, such as firebrick, calcium silicate board, castable, mortar, etc, go to the www.yilongrefractory.com.