wanhaorefractory

  The preparation method of ladle purging plug fireclay includes the following steps: Preparation of graphite uniformly dispersed slurry, preparation of CO grinding powder, vacuum mixing and vacuum packaging. The method for preparing anti permeability purging plug fireclay makes the fireclay with few bubbles and evenly disperses graphite powder which is not wetted by molten steel and steel slag, which makes it difficult for molten steel and steel slag to penetrate into the fireclay; Graphite powder makes the fireclay difficult to sinter, it is easy to remove when replacing the permeable brick, which can effectively avoid the cracking of the base brick and ensure the safety of molten steel refining. The raw material premixing device for chromium-free breathable brick fire mud for ladle includes a mixing bucket, a driving part arranged under the mixing bucket and a mixing shaft driven by the driving part, and a premixing channel is opened in the mixing shaft. The pre...