Introduction to the level classification of the Ceramic proppant

Refractories Ceramic proppant is used for oil deposit, which can improve oil output evidently. When putting in the gap of rock formation, which can show high diversion quality and increase oil output.
According to different raw material , there are several different level products:

1, Bauxite ceramic proppant is made from high quality bauxite and coal ash, which holds high refractoriness, high pressure reisistance and strong diversion. Bauxite ceramic proppant is environment friendly product, which is the most popular proppant in the world.
2, Fly ash ceramic proppant is made from solid rejected material and then mixed with water and cementitious matter, whose size is more than 5mm.
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Introduction of Runner castable

Low cement castable mainly uses alumina material and silica powder as raw materials. It is a kind of powder materials, and is constituted by refractory material together with some agglutinant.

    Runner castable is a kind of special castable which can flow without vibration and deaerate. When constructing, the product only needs a little water and can be poured into any shape without vibration.
    Runner castable is made from low cement castable and super-low cement castable, which is made from refractory aggregate, powder and high effective dispersing agent. When manufactured the runner castable, the most important thing is how to control size and quantity of powder, and how to mix with dispersing agent. Only with reasonable proportioning, and runner castable can flow by itself.
    Compared with common castable, the runner castable hold following advantages.
1. The runner castable can run without vibration with the help of deadweight.
2. Can run to every depart, especially where common castable cannot reach.
3. Can reflect the best performance of castable.
4. Reducing constructing time and save labour force.
5. Decreasing noise as more as possible.
    Without outstanding advantages, and application of runner castable is very wide, which can be widely applied for tundish, EAF triangular area, molten steel taping hole, heating furnace, blast furnace iron runner, iron casting induction furnace and so on.

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The Best Refractories for Induction Furnace -- 25+ Heats Silica Ramming Mass

In recent years, silica ramming mass is widely used in induction furnace. Compared with traditional refractory lining material, this product is of lower cost, shorter sintering time and better working condition. 


To offer clients better refractory products, we have successfully developed our 25+ heats silica ramming mass. As per actual working, we summed up the material consumption as following.
1. First heat: 10-15mm
2. Rest heat: 3-5mm


As per our experience, we should leave 70mm as save level. So if the lining thickness is 180/300/450mm, we could promise the least service life of our refractory material to be 25 heats. If the working condition is convenient, 30-40 heats is no problem.


 Furthermore, our silica ramming mass can also be applied in tundish and ladle. Service life can namely be 48-60 hours/ 200+ heats. 


Because of the great advantages as above, our silica ramming mass is very welcomed by our clients all over the world say Bangladesh, Ghana, South Africa, and Indonesia, etc. If more interests, please feel free to make us informed, our professional teams are ready to give you our reliable service. For new clients, we would offer more preferential as following.
1. Lower price trial order
2. Professional refractory technicians overseas service


Therefore, what are you waiting for? Talk your phone and call us!

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How to Choose Refractory Bricks Used for Different Parts of Blast Furnace

Mainly used for coke oven, hot blast stove, acid steelmaking furnace and glass melting furnace. The products can be manufactured according to customers' different requirements.

 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.

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Introduction of Runner Castable

Introduction of Runner Castable

Runner castable is a kind of special castable which can flow without vibration and deaerate. When constructing, the product only needs a little water and can be poured into any shape without vibration.

Runner castable is made from low cement castable and super-low cement castable, which is made from refractory aggregate, powder and high effective dispersing agent. When manufactured the runner castable, the most important thing is how to control size and quantity of powder, and how to mix with dispersing agent. Only with reasonable proportioning, and runner castable can flow by itself.

Compared with common castable, the runner castable hold following advantages

1. The runner castable can run without vibration with the help of deadweight.

2. Can run to every depart, especially where common castable cannot reach.

3. Can reflect the best performance of castable.

4. Reducing constructing time and save labour force.

5. Decreasing noise as more as possible.

Without outstanding advantages, and application of runner castable is very wide, which can be widely applied for tundish, EAF triangular area, molten steel taping hole, heating furnace, blast furnace iron runner, iron casting induction furnace and so on.

Two Construction Methods of Refractory Castable

A good construction method can help to save refractories, but many many people don’t know how to do it exactly, here are the construction methods of castable for ladle bottom and ladle wall.

Casting of Backing Layer for Ladle Bottom (construction time: 1 day)

    Firstly, fix Refractory Permeable Brick and Well Block, and then plug the inner hole with some resilient staff.

    Secondly, weld some anchoring nails in the middle area of ladle bottom between one well block and another, the vertical and horizontal distances between every two anchoring nails are 25 mm and 30 mm.

    Thirdly, mix backing layer castable for ladle with about 5% of water, and then stir it for about 20 minutes till smooth.

    At last, pave the mixed backing layer refractory castable at the bottom of ladle, and then vibrate it to 100mm in thickness by flat vibrator.

Casting of Backing Layer for Refractory Ladle Wall (construction time: 1 day)

    After maintenance of bottom permanent layer, stick a layer of high alumina fiber mat which is 10 mm in thickness with the ladle shell. Then place the mould right in the middle, flat, no deviation. The mould surface should be clean, smooth and greased for easy demould.

    Lay the mould properly to ensure that the gaps between mould and sidewall are the same, then pour the mixed backing layer refractory castable into the gaps, vibrate it by vibration bar till no bubble emerges (If mould is unavailable, cast working layer first and then permanent backing layer). The bottom of permanent backing layer is 100 mm in height; vibrate 300-400 mm per time, and its 90-100 mm in thickness, then one circle by one circle till to the top.

    After vibration of permanent backing layer, lift the refractory ladle to an area at higher temperature, so that it is convenient for water evaporation and drying of cast body. The time of demould should be more than 12 hours, usually 24 hours, specific time depends on lining harden situation.