There are many kinds of tundish nozzles, customers should choose based on their practical needs, mainly refer to the following two factors:

1.The service life of tundish lining. For example, if the tundish lining can only be used for 2 hours, the service life of tundish nozzle should be 2 hours top, because tundish nozzle can not be used again once the production stops;

2.Whether the work is continuous or not. If few malfunction happens in the steel plant, the work is mostly continuous, we
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The slide gate board in the use of high temperature molten steel was repeatedly, use the article very critical, erosion is serious, so it need has high strength, resistance to request skateboard erosion, spalling resistance, and good properties such as wear resistance, the mediator in the casting process card not leaking steel plate. Different material of skateboards brick is suitable for the different steel species, it is in the refractory industry and some steel enterprises become the consensu
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1.The SNCR Denitration Process
SNCR system of flue gas denitration process is completed by the following four basic processes:
(1)To receive and store reductant;
(2)Reducing agent of measuring output, mixed with water dilution;
(3)In the boiler proper place injection diluted reductant;
(4)Reducing agent mixed with the flue gas denitration reaction

2. The Problem of Cement Kiln SNCR Denitration
(1) Amino reducer (NH3), urea reaction features and additive modification method;
(2) Reducin
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Aluminum silicate fiber and ceramic fiber is a new type of lightweight refractory materials, the material has the advantage of light unit weight, high temperature resistance, good thermal stability, low thermal conductivity, low heat capacity, good resistance to mechanical vibration, small thermal expansion and thermal insulation performance is good, which wait for an advantage. Through special processing, it can be made into aluminum silicate fiber board, aluminum silicate fiber mat, aluminum s
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During our visits to many steel companies around the world, we found that some of them focus too much on the service life of ladle slide gate plate and lower nozzle, some even ask for more than 10 heats, here are some of our opinions on this condition:

1.Longer service life slide gate plate and lower nozzle leads to more accidents. After being used for some time, leakages are tend to happen at the joints or molten steel could penetrate from the bodies. In addition to that, workers has differe
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