SU852557A1 - Plant for group barking of logs - Google Patents

Description

one

The invention relates to equipment for the woodworking industry, in particular to a group for the debarking of logs, and can preferably be used to provide raw materials for the pulp and paper industry.

Installations are known for group processing of trees, in particular for removing branches from tree trunks, including the base, inclined flexible traction bodies with stops, and actuator 1.

Such plants can also be used for group debarking of logs. However, the efficiency and quality of the debarking will be low, and therefore these plants are not used on the debarking of logs.

Also known is the closest technical sushi to the proposed installation for group debarking of logs, including a chute with conveyors installed along it, for example, of screw type, on which screws there are cutting edges, 2 edges.

This plant, as proposed, has a gutter and conveyors installed in it. However, it also does not provide for debarking wood, especially short.

The purpose of the invention is to increase the efficiency of wood processing by creating relative mixing of wood particles in the entire volume of the processed group of logs.

The goal is achieved by the fact that the installation is equipped with fixed reflectors that are adjacent to the conveyors and are inclined to the direction of their movement.

The drawing shows schematically the proposed installation, open view from the exit side of the rendered logs.

The installation comprises conveyors 1, which are driven in a known manner. Above these conveyors there are reflectors 1 inclined to the direction of movement of the conveyors 1 located in the trough. Between the conveyors 1 there are spacers 3, which simultaneously serve as a support for the mass of the edged wood and additionally peel the bark from the wood adjacent to these conveyors. On the reflectors 2, corona-cutting elements 4 are fixed, for example, in the form of knives. Between the plates of the conveyors 1 and in the spacers 3 there are slots 5, through which the bark distant from the wood can be removed.

The installation works as follows.

Non-rooted wood is fed into the chute of the installation, which is randomly placed in it in a large layer. When the conveyors 1 move, the wood is captured by them, is brought to the reflectors 2 and is shifted along them. The rise of wood along the reflectors is accompanied by damage and removal of the bark from the logs in contact with these reflectors. Odiotime and variable loads on these logs cause their constant reorientation and mutual movements, which are transmitted to the logs of the overlying layers. Therefore, in the entire volume of wood rising along the reflectors 2, constant shifts of the logs relative to each other occur. Due to the high loads on the surface of the logs, these changes are accompanied by active damage and removal of the bark. Similarly, the debarking process proceeds during the passage of wood above the spacers 3, elements 4, as well as during short-term slippage of wood relative to conveyors 1 at the time of its collision with reflectors 2.

After climbing up the reflectors, the logs 2 collapse on the surface of the mass of treated wood, as a result of which damage and removal of bark also occurs. In general, the logs in the installation move in one direction along complicated loop-like paths from the loading end of the installation to its unloading end and in the corked form are diverted from the installation to further processing. A section of the crust is discharged through slots 5.

The lamination of wood in an installation can additionally be activated by a well-known method — by passing it with a coolant.

In the proposed installation, the wood debarking occurs both during the collapses and during its lifting using this

phase of high loads on the surface of the logs, so this installation is much more efficient than the prototype.

The proposed installation also has a number of additional advantages over analogues. The required processing time in her wood is small, respectively, and small losses of wood during debarking. The installation is structurally simple and in the particular case may contain a single conveyor with reflectors. The operation of the plant is easily controlled and adjusted, for example, by varying the speeds of the conveyors.

In the future, the proposed installation can replace the barking drums. Consequently, the invention is aimed at solving an important national task of increasing the efficiency of the debarking equipment of high unit capacity.

Claims (2)

1. USSR Author's Certificate No. 295668, cl. In 27L 1/00, 1969. 2. USSR author's certificate number 596439, cl. In 27L 1/00, 1975 (prototype).