BAST CROPS PROCESSING LINE

Abstract

The invention relates to an apparatus for primary processing of bast-fiber crops and can be used to obtain the same type straw fibers and shives or flax and hemp fibers. The bast crops processing line consists of the sequentially installed recoiling machine, dividing and scutching machine, breaking machine, the machine for scutching raw fibers without pressing tow shaker and shive-fiber waste transportation system, while the latter is fitted with a crushing device. The dividing and scutching machine makes it possible to form a layer of raw material with a definite and optimal density for processing, to card and separate shives from fibers. The machine for scutching raw fibers without pressing provides an intensive separation of shives from fibers, considerably facilitating further separation of free shives in the tow shaker. The crushing device improves reliability of the chive-fiber waste transportation system.

Claims

1. A bast crops processing line, comprising: a recoiling machine, a breaking machine, a tow shaker and a chive-fiber waste transportation system, wherein after the recoiling machine a layer-forming and scutching machine is installed and a machine for scutching raw fibers without pressing is installed after the breaking machine, with the layer-forming and scutching machine, the breaking machine and the tow shaker are able to remove free shiver and each being connected directly to the chive-fiber waste transportation system; wherein the machine for scutching raw fibers without pressing is equipped with a static stator and a rotor with rotating blades, with the rotor and the stator of the machine for scutching raw fibers without pressing, when interacting, break long bast fiber complexes into shorter ones and create an air stream used to transport raw fibers from the breaking machine to the tow shaker, and the chive-fiber waste transportation system is equipped with a crushing device installed under the layer-forming and scutching machine.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The invention is illustrated by the drawing, where

[0019] FIG. 1 depicts a scheme of the bast crops processing line.

[0020] The line consists of a recoiling machine (1), ventilation system (2), layer-forming and scutching machine (3), breaking machine (4), machine for scutching raw fibers without pressing (5), cyclone separator (6), tow shaker (7), shive-fiber waste transportation system (8) and crushing device (9).

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0021] The processing line works as follows: the raw material (10) from the recoiling machine (1) is fed into the layer-forming and scutching machine (3), where the layer of raw material (10) is first thinned, then the raw material (10) is scutched and carded and after that separation of shives and raw material (10) is performed. The formed layer of raw material (10) passes to the breaking machine (4), where its intensive breaking with simultaneous drawing, abrasion and thinning is performed. The crushed and partly separated from the shive raw material (10) enters the machine for scutching raw fibers without pressing (5), where the stator and rotor's blades (not shown on the drawing) intensively separate shives from fibers and break long bast fibers into shorter ones. Then, the shive-fibre mix passes to the cyclone separator (6), where it is separated from the air flow created by the machine for scutching raw fibers without pressing (5). From the cyclone separator (6), the shive-fibre mix is fed into the tow shaker (7), where the final separation of fibers from free shives takes place. The dust generated during the recoiling, fiber layer forming, scutching, carding and breaking operations is collected and removed from the working area through the ventilation system (2). During the fiber layer forming, breaking and shaking operations, shives and fiber fragments are separated from the raw fibers, which are removed from the working zones by the shive-fiber waste transportation system (8). The shive-fiber waste transportation system (8) is fitted with the crushing device (9), which increases its operational reliability. The crushing device (9) is installed under the layer-forming and scutching machine (3), where the most intense separation of shives from fibers takes place.

[0022] Experts in this area understand that the present invention may be changed and amended, but it will not alter the nature of the invention. Accordingly, the patent claim is assumed to include all the variations related to the nature and scope of the invention. The parts of the bast crops processing line represented on the FIG. 1, in claim and in this description are used as general. Instead of the represented parts of the bast crops processing line other alternative and/or equivalent parts may be used.

[0023] A sample of the line has been created on the basis of the invention. Experimental tests of the sample confirmed the working capacity of the proposed scheme.