Semi-dry airflow forming preparation process of fiberboard
A technology of airflow forming and preparation process, which is applied in the direction of fiberboard, non-fiber pulp addition, fiber raw material treatment, etc. It can solve the problems of difficult control of uniform constant value, difficulty in ensuring product uniformity, and high moisture content of fibers.
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[0048] see Figure 1-2 , a semi-dry airflow forming preparation process of fiberboard, comprising the following steps:
[0049] S1. Fiber separation: steam the wood chip raw material, send it to a thermal mill to make wood fiber, and then gas-explode the wood fiber into fiber filaments after thermal grinding for standby;
[0050] S2. Slurry treatment: mix fiber filaments with additives and pure water to obtain fiber slurry. The additives in S2 include paraffin emulsion, waterproofing agent, preservative, and fire-resistant agent. The paraffin emulsion, waterproofing agent, and preservative , The mass ratio of the refractory agent is 3:0.5:0.3:0.2, the preservative is selected from pentachlorophenol, and the refractory agent is selected from MgNH4PO4 to improve the excellent performance of the finished product;
[0051] S3, semi-dry airflow group breaking treatment:
[0052] S31. Pour the fiber slurry into the mold for paving and smoothing, and set up a plurality of guide rod...
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