Requirements for hot pressing in plywood production
(1) Drying technology with low energy consumption and high efficiency
The shavings drying adopts a single-channel drum dryer. The drying medium is hot flue gas after dust removal and purification. The drying temperature is high and the speed is fast. Compared with hot air as the drying medium, it saves two heat exchanges and has thermal efficiency. Correspondingly can be improved.
(2) High-precision sizing technology
Using online sizing technology. Table and core layer shavings are respectively measured by the continuous weight method, based on the measured weight of the table and core layer shavings and the sizing formula drawn up by the production process, the table, core layer glue solution, curing glue solution, waterproofing agent and buffering agent and other components Adopt gravimetric method or volume method to respectively measure and then pour into the glue mixing machine. The online sizing technology is accurate in measurement, cancels the traditional glue adjustment process, reduces the consumption of glue, etc., and satisfies the requirements of the production of Wood panel products.
(3) Low energy consumption and high precision paving technology
The slab paving adopts a new generation of multi-head combined paving machine. The technology is mature and reliable. It has the advantages of low energy consumption, low noise, no special maintenance, and high paving precision. The adoption of new paving technology can reduce the sanding margin, thereby reducing the consumption of raw materials and reducing production costs.
(4) Continuous hot pressing technology
The use of continuous flat pressing hot pressing technology can be mass-produced and reduce the amount of lateral trimming and reduce the consumption of raw materials. Compared with intermittent hot pressing technology, it can reduce heat loss and improve thermal efficiency and equipment efficiency.
In summary, the advanced production technology can not only ensure the production capacity of Wood panel products, but also reduce the loss of energy consumption to a certain extent.
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