SU28287A1 - Device for enriching long and short bast fibers - Google Patents

Description

By ennobling, generally referred to is such a chemical effect on fibers of bast plants, which, by freeing the fiber from pectin and encrusting substances, enhances its spin properties.

The refining processes take place either in closed pressure cookers, after which the fiber must be washed and wrung out, or else in open washing machines, where the fiber is either simply moved or else subjected to mechanical action due to the movement of the fiber in the liquid.

In this case, refinement is much more intense and faster.

This invention pursues the goal of intensive processing by moving the fiber, with its continuous passage through the cooking or washing liquid.

FIG. 1 - shows the plan for which device; in fig. 2 is a longitudinal section, in FIG. 3-slit on AB.

The fiber to be refined is laid out on a part of the trans, porter a, in width (Fig. 1). The conveyor bends the rollers 1, 2, 3, 4, 5 and b, of which the shaft 5 is the driving shaft. It consists of a hollow cylinder with an axis.

at the ends of the teeth for the chain Gall. A conveyor for a long fiber consists of 2 Gall chains interconnected along the entire length by strips placed ng | h with a limit of distance from each other. When the drum 5 is moving, the Gall chains move and the straps with the fiber located on it. During the conveyor belt, the fiber is immersed in the cooking liquid, which is located in the iron or wooden tank at the level of mn (Fig. 2), i.e. several times above the part of the conveyors.

The passage of the shaft 5, in the free state, passes along the k-to-k supporting rollers and then returns through the roller 6. to the first roller.

Pass the roller 5, the fiber enters the pair of squeeze rollers 1 and then into the drying.

Above the part, of the cd conveyor, between the rollers 3 and 4.1, a second conveyor is located, bending rollers 7 and 8, of which roller 8 is the leading one.

The conveyor is generally designed in the same way as the lower conveyor, with the only difference that on each slat there are planted long oblique pegs of a conical shape, so that they easily leave the fiber. Speeds

both transporters must be the same. The length of the pegs must be such that they, the entrance to the gaps between the slats of the lower conveyor, are somewhat lower than the slats.

Thus, when the fiber located on the lower conveyor comes out from under the roller 3, it is split by the upper conveyor.

The length of the pegs or distance between the conveyors is established depending on the type of fiber, the degree of its processing and the thickness of the layer. In all cases, the liquid level TP should be slightly higher than the bottom of the upper conveyor.

The movement of the fiber in the liquid is carried out with the help of some movement of the upper conveyor along the axis of the shafts 7 and 8, in the direction of the arrows oo.

The number of movements is determined by experience, and fluctuations can be from 100 to 200 per minute.

Thus, the fiber, moving continuously between the two conveyors, being penetrated between the two pegs, moves them across the movement and, thus, an intensive rinsing of the fiber takes place, greatly increasing the effectiveness of the work.

The upper conveyor, both along and across, is moved in the following way: the main shaft 5 moves from the worm gear f (fig. ,, 1), driven directly from the motor / 7 or through the gear.

On the axis of the shaft 5 there is a gear wheel for the chain, Gaul g, which drives the gear h acting on the gear /, from which the translational movement of the conveyor takes place.

On the other side of the axis, baribana 5, there is also a chain of Gall g chains, which drives the conical gear q, which rotates the eccentrics xx (Figs. 1 and 3),.,; . . ;

From these eccentrics, with the gums of the system of levers acting on the end of the axis of the drum 8, this axis, as well as the axis of the drum 7, receive movement along the axis. To accomplish this, the gear / must be of such a width that during all the time of the axial movement it is meshed with the gear h, giving longitudinal movement of the conveyor.

To heat the fluid in the bottom of the conveyor, it is possible to arrange the pipes. 5-5 for the passage of steam.

In order to beautify short fibers, the lower conveyor should not consist of a p-strip, but of a net stretched between the chains of Gall. The upper conveyor must have pegs that do not reach the lower conveyor network.

For the transporter and the number of refiners working one after the other, they are adjusted depending on the conditions and degree of the desired treatment.

The subject matter of the invention.

A device for enriching long and short bast fibers, consisting of an endless web for longitudinal movement of fibers through a liquid, characterized in that, for the purpose of intensive rinsing of fibers, the endless web 7 and 8 are equipped with pegs p for loosening the fibers and | centric mechanism. articulated with the common for the infinite blade 7 and the 8-drive mechanism used to communicate the infinite canvas of the transverse oscillatory motion.

Fig 2