SU796253A1 - Device for loosening and cleaning fibrous material - Google Patents

Description

(54) DEVICE FOR DENTIFICATION AND CLEANING OF FIBROUS MATERIAL

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The invention relates to light industry and is intended to loosen and clean cotton fiber from trash in preparing erojc spinning.

Closest to the present invention is a device for loosening cotton, which contains two loosening drums mounted at an angle to each other. The drums are fixed to discs with nozgmi placed on them. The diameters of the drums and discs, as well as the number of knives, increase from bottom to top. A grate is placed around the loosening drums, as well as in the lower part of the device. In the lower part of the device, the feed pipe of the fiber material is mounted, and in the upper part - the vertical pipe of the output of the cleaned fiber ij

The disadvantage of this device is that it causes damage to the fibrous material when it is repeatedly exposed to the working bodies. This leads to an increase in the content of short fiber in the loosened mass and impairs its quality.

The purpose of the invention is to improve the quality of the processing of fibrous material.

The goal is achieved in that the device is provided with a loosening roller, vertically mounted between the drums, and means for creating an air flow. The outlet pipe of the cleaned fiber is located above the roller between the drums, its lower end is made closed, and the slit-like slots are made on the side surface on the side of the loosening drums. In addition, the means for generating the air flow is made in the form of a paddle wheel mounted on the shaft of the loosening roller. In the zone of the slit-like slots, the nozzle for outputting the cleaned fiber has visors installed tangentially to its surface and directed in the direction opposite to the direction of rotation of the loosening drums.

FIG. 1 shows a device for opening and cleaning a fibrous material; a general view of FIG. 2 the same, top view.

Claims (3)

The device for loosening and cleaning consists of body 1. in which a pair of conical drums 2 and 3 are mounted, the axes of which are placed in the vertical plane at an angle to one another. On the drums there are pegs 4, the density of the installation and the magnitude of which increases from bottom to top. A adjustable grate 5 is placed around the reels. In the lower part of the device there is a grate b, and a fibrous material supply duct 7. The lower ends 8 and 9 of the shaft of the drums are placed in bearings on the base 10. Between the lower ends of the drums 2 and 3 on the shaft 11 there is a cylindrical pulley loosening roller 12 and a means for creating an air flow made in the form of a paddle wheel 13. In the cavity 14 the device above the ra: gripping roller 12 is located the side of the 15 outlet of the purified fiber. The lower end thereof is made closed and on the side surface on the side of the loosening reels 2 and 3 there are slit-shaped slots 16. The nozzle 15 in the zone of slit-like slots 16 has peaks 17 mounted tangentially to its surface. The gaps of 18 canopies 17 are facing the opposite direction of the loosening drums. Under base 10 and grate 6, carbon chamber 19, drums 2 and 3, and roller 12 are connected with individual electric motors (shown in Fig. Not shown). The operation of the device is as follows. Through the fiber supply line 7 of the material, the pre-loosened fiber enters the casing 1 of the ripping and cleaning device and is hit by the pegs 4 of the drum 2. The transportation of the fibrous material in the cavity 14 of the device is carried out by air flow into the device, as well as by the impeller 13 . The trajectory of the fiber shreds depends on their size. Large and heavily clogged shreds weighing 450-300 mg have great inertia and after getting inside the device due to the action of drum 2 spuds, the cusps of the drum 3 are thrown, the bars of the grate 5 are struck, freed from weed impurities and loosened. Such hutts spiral along and up along the inner surface of the grate. Smaller shreds of fiber, whose weight is 150-250 mg, are less inertial and fall into the interaction zone of drum 2 or 3 and loosen Khdek-12. The trajectories of movement of such shreds are also spiral shaped, but they rotate at one of the loosening drums. The smallest fibrous shreds, weighing less than 150 mg, and individual fibers under the action of the air flow generated by the paddle wheel 13 much faster than larger shreds, move the top and out of the device through the slit 16 already in the lower part of the nozzle 15. The rest of the fiber it is also withdrawn from the cavity of the device through the slits 16, but as it is loosened and cleaned. The removal of the fiber from the device is carried out through the pipe 15 by the air flow created by the condenser (not shown in fig.) And transporting the fiber to the machines for further processing. Peaks 17 prevent the premature exit of fiber from the device. Shreds that have already been loosened are already enough to not be exposed to the pegs of drums 2 and 3 and the grate 5, But. not yet ready to be removed from the device, do not fall into the slit 16, since the direction of the gap 18 formed by the visors 17 is opposite to the direction of rotation of the drums 2 and 3 and thus only strongly cleaned and loosened fibrous shreds are drawn into the cavity of the nozzle 15, and larger scraps are LAYED out and cleaned, rotating around one of reels 2 or 3. The proposed device improves the cleaning efficiency of weed impurities, increases the yield of high-grade fiber and the degree of loosening, o It is very important for the successful processing of cotton from a machine harvest that is highly contaminated. Intensification of the cleaning and loosening of the pulp in the first stage of fiber entry into the device reduces the damageability of the fiber. The device eliminates the possibility of air leaks from the carbon chamber and the ingress of litter into the mass. Claim 1. Device for loosening and cleaning of fibrous material, containing a pair of conical loosening drums, the axes of which are placed in a vertical plane at an angle to one another, grates, a conduit for feeding fibrous material and a vertical outlet of the cleaned fiber, different from that. , in order to improve the quality of material processing, it is equipped with a loosening roller, vertically mounted between the drums, and means for 1 creating an air flow, The outlet pipe of the cleaned fiber is located above the shaft between the drum bars, its lower end is made closed, and on the side surface there are oblique slots on the side of the loosening drums. 2. A POP device 1, characterized in that the means for creating an airflow of a P1 flow are made in the form of a paddle wheel mounted on a shaft of a loosening roller. 3. A device according to claim 1, characterized in that the nozzle for outputting the cleaned fiber has visors in the slit-shaped slot area that are installed tangentially to its surface and are directed in the direction opposite to the direction of rotation of the 1 л hl drums. Sources of information taken into account in the examination 1. The patent of Germany 842173, cl. 76 V, 2/01, publ. 1952. 171 / V No. P 17