SU1318308A1 - Grading device - Google Patents

Abstract

The invention relates to the separation of materials by size, m. It is used in the mica processing industry and allows to increase the sorting efficiency due to the orientation of the screened material and the improvement of the self-cleaning of the screening surface. The device includes a loading unit 2, inclined body 13 and frame (P) 3. The cylindrical rolls (B) 4 and 6 are located concentrically to the axis 5 Р 3. Moreover, B 6 of smaller diameter are installed between B 4 of larger diameter offset to the axis P 3 relative to B 4 and with the possibility of radial movement. On the ends of each B 6 spring loaded pushers are fixed. They are installed with the ability to interact with the cam 12 mounted on the housing 13. The conditioning laminate from node 2 enters the inside of the drum formed by P 3 and B 4 and 6. Between B 4 and 6 there is a discharge gap (RC). Plates that are thicker than the width of the RS, do not fall through the RS, but slide along B 4 and 6 and unload onto the conveyor 19. During the rotation of P 3 around the axis 5, the RS changes its width in accordance with the shape of the copier 12. Those who are in the PC mica falls out. 3 il. with S (L 1Z 7 ° W with 00 with about 00

Description

The invention relates to the field of separation of materials by size, namely, sorting devices and can be used in the classification of materials by thickness in various parts of the national economy, for example, in the mica processing industry.

The aim of the invention is to increase the efficiency of sorting mica crystals by orienting the screened material and improving the self-cleaning of the screening surface.

FIG. 1 shows a sorting device, a longitudinal section; in fig. 2 is a section A-A in FIG. one; in FIG. 3, node I in FIG. 1 (spring-loaded pusher).

The device consists of a tray 1, a boot unit 2, made in the form of a perforated drum, a rotating frame 3, made in the form of a drum, around the circumference of which there are rolls 4, between which rolls 6 are set offset to the frame axis 5. At both ends of each roll 6 mounted by means of nuts 7, pushers 8 with bushings 9, springs 10 and rollers 11, which mate with a cam 12 fixed on the inner side of the housing 13,

The frame 3 with the rollers 4 and 6 is driven into rotation by the drive 14 through a V-belt drive with pulleys 15 and 16 and a gearbox 17. The undersize product is transported from the place of sorting by the conveyor 18, and the superlattice by the conveyor 19.

Sorting device operates as follows.

Laminated material, for example, mica crystals together with non-commodity fines, is supplied by tray 1 to loading unit 2, which rotates together with frame 3 by drive 14 through wedge-belt gear with pulleys 15 and 16 and gearbox 17. At the same time, the small non-commodity fraction falls through the perforated loading surface. unit 2, and the conditioned product enters the drum formed by the frame 3 and the rollers 4, which are fixed on the frame 3 and, rotating with it, each also rotates about its axis. Installed on the frame JJ between the rollers 4 with an offset to the axis 5 of the frame 3, the rollers 6 of smaller diameter also rotate together

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with frame 3 and have the ability to move in the radial direction. Between the rollers 4 and the rollers 6 there is an unloading gap, the width of which can be adjusted by nuts 7 due to the radial movement of the rollers 6. In addition, during the rotation of the frame 3 around the axis 5, the discharge gap changes its width in accordance with the shape of the copier 12, in the lower position its size is minimal, and at the top - the maximum. Mica pasteinees, which are thinner than the width of the discharge gap between rollers 4 and 6 in the lower position, fall into the slots and fall onto the conveyor 18, which transports them to the place of consumption, and those plates that are thicker than the width of the discharge gap slide along rolls 4 and 6 and unloaded onto the conveyor 19. When the frame 3 rotates, the rollers 11, moving along the copier 12, move the rolls 6 closer to the axis 5 of the frame 3 and thereby increase the fold - "loading gap. At the same time, mica crystals stuck in the gaps fall out and the working surface of the sorting device is self-cleaning.

The adjustment of the width of the discharge gap is made by nuts 7, which allow you to change the distance from the axis of the roll 6 to the roller 11 which is coupled with the cam 12.

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Claims (1)

Claims Sorting device, including a loading unit, an inclined body, a frame, rolls concentric with the frame axis, with spring-loaded pushers fixed on each second roll, installed with the ability to interact with a cam mounted on the body, which is To increase the sorting efficiency due to the orientation of the screened material and to improve the self-cleaning of the screening surface, the rolls are cylindrical with different diameters, and the rolls are of smaller diameter are installed between rollers of a larger diameter offset to the frame axis relative to the latter and with the possibility of radial movement, and spring-loaded pushers are fixed at both ends of each roll of a smaller diameter. Fig.Z FIG. 2 Compiled by S. Shestakov Editor I.Nikolaychuk Tehred L.Oliynyk Order 2453/7 Circulation 538 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 Proofreader A.Zimokosov