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2022
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05
Construction of overall breathable bricks and water-mouth bricks for steel ladles
Source： Science and innovation materials
Release time：2022-05-16 17:19
The quality of ladle lining directly impacts the service life of the permeable bricks and water-mouth bricks, and may also affect the quality of the finished steel. Before lining, the existing refractory lining of the ladle needs to be removed. Before dismantling, adequate preparation is necessary. Firstly, carefully inspect the thickness of the ladle wall, bottom, water-mouth bricks, and permeable bricks, checking for any large gaps. Before entering the ladle, check the upper part of the ladle for any hanging or loose steel slag and address it accordingly to prevent injury from falling slag during operation.
The quality of ladle construction is related to the service life of breathable bricks, water nozzle bricks, etc., and may also affect the quality of steel products. Before construction, the inner lining materials of the ladle need to be removed. Before dismantling, relative preparations are needed. First, carefully check the thickness of the ladle wall, bottom, water nozzle bricks, and breathable bricks, and check for any large brick gaps. Before entering the ladle, observe whether there is any hanging or loose steel slag on the upper side of the ladle, and make corresponding processing to avoid injury caused by falling steel slag during operation.
(Picture) Ladle Construction
After dismantling, the overall breathable bricks and water nozzle bricks are constructed.
Construction of overall breathable bricks: Clean the reserved breathable brick area of the bottom permanent layer; use an overhead crane to align the breathable brick steel pipe with the reserved hole at the bottom of the ladle, put it in place, and set it upright; fill the gap between the breathable brick and the bottom brick with castable.
Construction of water nozzle bricks: Check the condition of the water nozzle bricks to ensure that there are no cracks or deformations that affect their use. Generally, the installation accuracy requires the distance between the mother mouth end face of the nozzle brick and the reference plate of the mechanism fixing frame to be less than 125 mm, and the size fluctuation is within 1 mm when measured from any position; during installation, place the water nozzle brick in the positioning ring, rotate the brick appropriately to ensure good contact between the mortar and the brick, and set the brick firmly. At this time, the thickness is required to be ≤1 mm; fill the gap between the brick and the permanent layer bottom brick with brick repair material.
（ (Picture) Construction of overall breathable bricks and water nozzle bricks
The construction of overall breathable bricks and water nozzle bricks accounts for a large proportion in the construction process of the ladle and is indispensable for steel refining. As a professional refractory materials manufacturer, Kechuang New Materials produces Breathable bricks 、 Water nozzle bricks 、 Electric furnace lid etc., for 22 years, with high service life, thermal shock resistance, corrosion resistance, and erosion resistance, patented formula, unique design, trustworthy!
From Luoyang Kechuang New Materials Co., Ltd.: https://www.kcnh.com/.
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