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                Construction technology of non baking wear resistant refractory plastic

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                Construction technology of non baking wear resistant refractory plastic

                Date of release:2019-06-11 Author: Click:

                What is the construction technology of baking free, wear-resistant and fire-resistant plastic? Let's understand it with me!

                This material is constructed by ramming and compacting. Before construction, lay the plastic on the required position, lay the blank staggered and close to each other. After ramming, the joint of the blank shall be rammed, and then the whole area shall be rammed three times with pneumatic hammer or hand hammer to ensure the material is dense. The correct anchorage is very important for supporting sheet-like plastic. The rigid anchorage pin is used. The spacing between the top and bottom of the anchorage pin is about 150 mm ~ 250 mm. The slab thickness can be determined according to the design requirements of different furnace types.

                1. After determining the damaged part, the edge shall be repaired to a right angle with a tool, and the subsidence shall not be less than 20 mm, that is, the repair thickness shall not be less than 20 mm. After repair, the plastic can be smoothly over the original refractory without trapezoidal connection.

                2. Clean up the repaired parts. If there are loose particles in the raw refractory materials, they must be removed without floating dust, so as to ensure a solid and clean working face on the repaired surface.

                3. The plastic can be sliced with a very clean cutter, and the fresh side is pasted on the repair part, and then the pneumatic hammer or hand hammer is used to tamp tightly. The laying of the blank should be staggered and close to each other. After tamping, the joint of the blank should be tamped, and there should be no gap. After all the repair surfaces are pasted, the blank should be tamped again and again with the hammer until the surface of the blank is moist. Pay attention to the edge when tamping, do not tamp the original refractory, and finally tamp the whole repair surface into a smooth plane.

                4. To repair the local depression of the water wall, weld the heat-resistant steel spikes on the connecting plate or the water-cooling pipe body at the depression of the water wall, the spikes are 20 mm ~ 30 mm long, with an interval of 30 mm ~ 40 mm, and then stick and tamp the blank.


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