SU1011369A1 - Apparatus for barking timber - Google Patents

Abstract

A WOOD BANDING DEVICE, containing successively installed horizontal cylindrical sections, each of which, starting from the second, has evenly spaced slots along its side surface, a heat transfer supply system and tranporters for removing balances and cleaning waste debarking, characterized in that, in order to combine The processes of milling and shredding waste and increasing productivity, on the side of the side surface of one third of the length of the first section from the side of its adjoining to the subsequent sections longitudinal slit ,. and on the side surfaces of the sections, peaks are mounted to cover the gaps, the peaks being made in the form of metal plates mounted at an angle of 38-42 °. to a tangent drawn to the surface of the "cylindrical sections along the axis of the slit.

Description

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The invention relates to devices for the debarking of wood and can be used in the forestry and pulp and paper industry.

A device is known for the debarking of wood, comprising a two-piece body, between the sections of which a flat fixed chamber for supplying steam is installed, and additional sector stoppers 1 are fixed on the inner side surface of the sections.

The disadvantage of this design is the inevitable large dynamic loads during the interaction of the sector burrs and the steam supply chamber with the processed balances, which leads to an increased scrap content in the debarking waste and the formation of large pieces of bark and long bark tapes, which are difficult to dispose of before grinding.

A device is known for the debarking of wood containing successively installed horizontal cylindrical sections, each of which, starting from the second, has evenly spaced slots along its side surface, a heat transfer supply system and conveyors for discharging balances and cleaning waste 2.

The disadvantages of this device are that large pieces of wood, long strips of bark and other large fractions are part of the debarking waste, which cannot be disposed of without prior grinding. In addition, frequent stopping of the debarking drum to clean clogged cracks reduces the performance of the device.

The purpose of the invention is to combine the processes of debarking and grinding waste and increasing productivity.

 This goal is achieved by the fact that in the device for wood debarking, there are sequentially installed horizontal cylindrical sections, each of which, starting from the second, has evenly spaced slots along its side surface, a heat transfer supply system and conveyors for removal of balances and debarking waste at the site side surfaces of one third of the length of the first section from the side of its adjoining to the subsequent sections are made longitudinal slits, and on the side surfaces of the sections are mounted rikryti slots, wherein sunshields are in the form of metal plates arranged at an angle of 38-42 ° to the tangent to

the surface of the cylindrical sections along the axis of the slit.

FIG. 1 shows the device, a general view; in fig. - section A-A in FIG. one;

in fig. 3 shows the node I in FIG. 2; in fig. 4 is a view B in FIG. 3

The device for debarking wood contains successively installed horizontal rotating cylindrical

sections 1 and 2. On the side adjacent to section 2, section 1 is made with longitudinal slits 3 for a length of one third, and section 2 is made with evenly spaced gaps 3 along the entire length. The device comprises a conveyor 4 for removal of balances, a conveyor 5 for cleaning debarking waste, a coolant supply system and a fixed casing 6.

The slits 3 on the outer surface of the sections are provided with visors 7 consisting of metal plates 8 installed at an angle of 38-42 ° to the tangent, held to the surface of the cylindrical section along the axis of the slit 3, and fitted at the ends with triangular kerchiefs 9.

The device works as follows.

The balances supplied for debarking with the wood feed conveyor are loaded into the cavity in the cylindrical sections 1 and 2, where, due to the difference in levels on the loading side and the unloading side, the first and then subsequent sections pass.

During the period of being in the cavities of the sections, the wood makes a rotational-translational motion, mixing vigorously, with the tonkomer, boards, slabs

or large flakes arising from debarking fall into the slots 3, abut against the metal plate 8 of the visors 7 and with further rotation of the cylindrical section 1 again push a layer of the processed balances into the cavity of the section. The resulting dynamic loads on the metal plate 8 through the kerchiefs 9 are transferred to the section body.

Clearing the raw material, the bark is directed down the section of the section and enters the slots 3, where the fines fall into the cavity between the section and the casing 6 and, rolling down the inclined plane of the latter, get to the conveyor 5 to collect the debarking waste, after which are disposed of for recycling, and large fractions, when rotating the cylindrical sections, again fall into the layer of cut timber, where they are crushed, and at the same time, with their abrasive properties, increase the debarking of the balances.

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Claims (1)

DEVICE FOR CHAIN OF WOOD, containing successively installed horizontal cylindrical sections, each of which, starting from the second, has slots evenly located on their lateral surface, a coolant supply system and conveyors for removing balances and debarking waste, characterized in that, in order to combine debarking processes · and crushing waste and increasing productivity, on open slots _: and on the side surfaces of the sections there are mounted peaks to cover the slots, and the peaks are made in the form of metal plates mounted at an angle of 38-42 ° to the tangent drawn to the surface of the "cylindrical sections along the axis of the slit." >