Holding and snatch, wood drying, wood preservation, log impregnation
A variety of vacuum pumps are used in the wood processing industry. Our vacuum pump starts to put wood on the workbench and the final product protection is applied. For this reason, the working area is kept clean and has no effect on the crumbs of the final product. Vacuum pumps are also used as central vacuum systems for wood processing to improve efficiency and minimize the costs associated with keeping wood and those no longer necessary to special workstations.
1. Holding and snatch
To ensure the safety of the processing, wood pieces are automatically fixed on the worktable by vacuum suction heads. During processing, it is necessary to stabilize the workpieces at a vacuum level of at least 15HgV in order to ensure that the workpieces are firmly secured to the worktable. If the vacuum degree falls below the required vacuum level, the workpiece will not be fixed.
Two. Wood drying
The use of vacuum desiccator in traditional wood drying chamber makes drying time only 3 to 4 days from the past weeks to now.During drying, the pressure in the drying chamber is gradually reduced to a minimum. The drying chamber is filled with high pressure steam, and oxygen is pumped away to avoid cracks and color changes in wood. These changes are usually due to high oxygen content. Centrifugal fans are used to circulate steam and transfer heat to wood.
Three. Wood preservation
Before and after processing, wood must be protected from adverse environmental impacts such as heat, moisture, pests and microbes. The preservation of wood by placing wood in a preservative solution has been very extensive. However, the drawback is that the penetration of preservative into wood is only a few millimeters deep. However, full protection is possible. It is to degassing and drying wood under the aid of the vacuum pump, so that the depth of the preservative can be much deeper, thus greatly optimizing the protection effect.
Four. Impregnation of logs
Impregnate logs to avoid decay in unprotected environments. To this end, the wood is loaded into a large airtight container. After loading, the water vapor in the wood is extracted from the container by liquid ring pump. Then, the chromium arsenic mixture (CCA) was injected into the container. At this point, the vacuum pump is used as a compressor to pressurize the container and impregnate wood with the required concentration of CCA.
Impregnation of wood is a widely used scheme, but its drawback is that liquid enters only a few millimeters of wood. However, the vacuum pump can be used for degassing and drying to completely protect the wood. In this way, preservatives penetrate deeper and optimize the protective effect.