Ladle upper nozzle replacement device:
Upper nozzle refractory is a kind of prefabricated firebrick which is frequently replaced by heat on ladle. In the process of hot replacement, it is generally dismantled by manually breaking with a pick. High labor intensity, low safety factor. Replace the Ladle upper nozzle device, including the ladle shell, support and hydraulic cylinder connected from left to right. The hydraulic cylinder is driven by the hydraulic force transmission system and the power system. The telescopic end of the hydraulic cylinder is provided with a cylinder end clip, the cylinder end clip is provided with a clip slot, and the card slot is connected with one end of the tie rod, and the rod body and the other end of the tie rod are arranged in the ladle shell and the support. The utility model uses the hydraulic cylinder to drive the pull rod from the bottom of the ladle to pull outward, and through the shear action of the end of the pull rod, the purpose of rapidly removing the abandoned upper water outlet can be realized, and the whole process takes only one minute, saving time and effort, and is stable and reliable.
https://www.lktrefractories.com/steel-flow-control-refractories/ladle-slide-gate/upper-nozzle-refractory.html
Improve Ladle upper nozzle life:
The service life of the upper nozzle has a significant impact on the service life of the bottom, which in turn directly affects the comprehensive package age. Using the latest matrix optimization technology and the closest packing theory, upper nozzle has successfully developed a domestic leading line of long-life ladle top nozzle products. Ensure that there is no leakage of molten steel during the pouring process, but also erosion resistance, erosion resistance and good thermal stability, so that it can withstand sudden changes in temperature, erosion of molten steel and erosion of slag.
Advantages of using Ladle upper nozzle:
With high strength, corrosion resistance, anti-spalling and other good performance, in the pouring process to ensure that the skateboard can not leak steel, the skateboard must have the following properties:
(1) Flatness of sliding surface ≤0.05mm;
(2) High mechanical strength;
(3) Strong corrosion resistance to molten steel and slag;
(4) Excellent antioxidant properties;
(5) Good thermal shock stability.
