SU935297A1 - Plant for separating birch bark from bast - Google Patents

Description

(Sk) INSTALLATION FOR THE SEPARATION OF THE BEER FROM THE TOY

one

The invention relates to the forest and forestry industries and can be used in the production of tar.

A device for separating birch bark from the bast is known, which contains a base, a drum with loading and unloading windows, knives arranged in a checkerboard pattern, and such an anvil, comb, and a drive fl.

However, the known device is not enough to destroy particles of bast.

The aim of the invention is to improve the quality of separation of birch bark.

The goal is achieved by the fact that the installation is equipped with a device for deforming the labial layer, made as installed. At an angle to the horizon of a two-section conveyor, the first section of which consists of moving towards each other with different speeds of the upper and lower tracks. the lower and spring-loaded fixed upper tracks, and the knives are mounted on the lower tracks of the conveyor, and the counter blades on the upper tracks and located between the blades in the feed direction.

In addition, the knives of the first and second sections and the counter knife of the first section of the conveyor are perpendicular, and the counter blades of the second section are parallel to the feed direction.

FIG. 1 image: an installation for separating birch bark from bast, general view; in fig. 2 is a basic kinematic scheme of a drive for a device for. deformation of the labial layer.

The installation for separating the bark from the bast includes a frame 1, on which jjj on rollers 2 is mounted a rotating centering drum 3 made of a perforated sheet, having a loading 4 and loading windows 5, as well as a drive b, located under the frame on a separate platform 7 The drum 8 also has an inclination angle of 2-k ° to the side of the unloading window 5. On the base 1 there is also mounted a device for deformation of the bast - s layer, which consists of a loading hopper 8 and two sections of conveyors of a crawler type mounted obliquely. The first section consists of the lower caterpillar 9 and the upper caterpillar 10, and the movement of their counter and the speed of the lower caterpillar 9 is twice the speed of the upper caterpillar 10 and equal to the speed of the feeding conveyor (not shown). The second sec-15 qi consists of a movable lower caterpillar P, the speed of which is equal to the speed of the caterpillar 9 of the first section and the stationary caterpillar 12 pinned over it, one end of which is spring-loaded. On the lower tracks 9 and 11, knives 13 are mounted, and on the upper tracks 10 and 12, counterblades are mounted and positioned between the knives 13 in the feed direction. The knives 13 of the caterpillar 11 are parallel to the feed direction, and the counter knives of 1t guinea 12 are perpendicular to the feed direction. The installation works as follows. From motor 15 through gear 16 and V-belt transmission, movement is transmitted to shaft A of caterpillar 9, from shaft B through gears 17 movement is transmitted to shaft B of caterpillar 10, while at the same time from shaft A of caterpillar 9, through a pair of sprockets 18, movement is transmitted to shaft G the mobile track 11. the second section. Through the loading conveyor, the raw materials from the debarking machines are fed into the loading hopper 8, from where it enters the device for deformation of the labial layer. Getting between knives 13 and the contractions of caterpillars 9 and 10, the bark with bast moves along a sinusoidal trajectory. Moving between tracks 9 and 10, bark with bast undergoes alternating alternating loads. under the action of which the bast layer, as more saturated with moisture and more loose, is crushed and separated from the bark. This effect is enhanced by the fact that it had different speeds of oncoming movement of the tracks.

9352974

Claims (2)

deformation occurs; tearing of one layer (bast) relative to another (bark). Then the bark enters the zone of contact between the caterpillar 11 and the hinged guo senica 12. After passing through this zone, the bast is even more crushed and finally separates from the bark. A part of the crushed bast, the passage of the deformation zone, enters the funnel 19. The other part, together with the separated bark bark, through the window t of the drum enters the drum 3, in which it is completely sifted through the hole, and the clean bark comes out through the discharge window 5. the caterpillar of the second section and as a device for mechanical deformation of the labial layer, and as a conveyor for feeding crushed bast and bark into the drum. Claim 1. Installation for separating birch bark from bast, including a frame, a drum with loading and unloading windows, knives, anvils and a drive, characterized in that, in order to improve the quality of separation of bark from bast, the plant is equipped with a device for deforming the labial layer made in the form of a two-section conveyor installed at an angle to the horizon, the first section of which consists of moving towards one another with different speeds of the upper and lower tracks, and the second - of the moving lower and spring-loaded the second fixed upper tracks, with the knives mounted on the lower tracks of the conveyor and the counter blades on the upper tracks and located between the blades in the feed direction. 2 .. Installation according to claim 1, so that the knives of the first and second sections and the counter-knife of the first section of the conveyor are perpendicular, and the counter-knife of the second section are parallel to the feed direction. I Information sources received into account during the examination 1. USSR Author's Certificate No., cl. In 27 L 11/02, 1978 (prototype). Q QO DflO hB D O D O D SM D DO DDD 5M CN L u.