Wood processing takes place both chemically and mechanically. They overlap in many ways, but still represent two industries - woodworking and pulp and paper.
Instructions
Step 1
Wood processing is classified according to technological and instrumental characteristics for sawing, planing, milling, cutting, peeling, debarking, felling. This is followed by gluing and hammering, spiking, drying and protective impregnation. Special impregnations can be used that improve the properties and protective special treatment of surfaces. Sawing, planing and milling are fairly well-known and straightforward procedures. With the help of the sawmills specially equipped at the sawmills, logs with and without bark are turned into beams, plates or boards. In this case, a lot of shavings and sawdust are formed, which are sometimes partially processed, but more often burned.
Step 2
Depending on how the wood is used, waste from production can be 35-45%. This is not only sawdust and shavings, but also trimmings, bark, slab - all this waste can be reused. Waste from wood production for further successful processing is classified as follows - hard, or lumpy, bark and soft - shavings and sawdust. Wastes are divided into those obtained during felling of forests, when using round timber and during primary and secondary processing. Then the sawdust can be used in hydrolysis plants, in the production of bricks and gypsum sheets. Plates are made from shavings: wood-shaving and cement-shaving. The production of fuel briquettes from wood waste is also gaining popularity. Agriculture also consumes a lot of waste of processed wood.
Step 3
When preparing wood waste for processing, they are sorted by wood species, then subjected to hydrothermal treatment, cutting, and rotten areas are removed. In special machines, the shavings, pre-treated with steam, are ground with special toothed discs. Wood shavings are additionally treated with salt solutions in order to remove harmful deposits from the wood that could arise from contact with sewage or contaminated soil.
Step 4
The list of equipment may vary depending on the direction of waste processing, but the basic required machines and mechanisms are often the same. These are hand rammers, presses, chippers, mixing stations, screw conveyors and drying chambers. Molds or charcoal kilns, wood splitting machines may be needed. Wood processing really has many specialized areas. You need your own equipment for the production of paper, chipboard or charcoal, so it is unlikely that it will be possible to process wood in all directions at once.
