SU961789A1 - Screen for sorting and separating scrap metal components - Google Patents

Description

one

The invention relates to the separation and sorting of solid materials, in particular to screens for the separation and sorting of components of ferrous metal.

A screen for separating and sorting the components of ferrous scrap metal is known, 5 containing a loading chute, receiving troughs, two sieves arranged one above the other, of which the top one is made with rectangular cells and the bottom one is in the form of a grate with a transverse grate, and vibratory drive of both sieves 1.

The drawback of the device is the non-uniform composition of the undersize product and the low efficiency of the separation of tin-containing components of metal-5 scrap-cans.

The purpose of the invention is to increase one of the similarity of the undersize product.

The goal is achieved by the fact that in the screen for separating and sorting the components of black scrap metal, containing 2 ° feed chute, receiving troughs, two sieves arranged one above the other, of which the top one is made with rectangular cells,

a grate with a transverse grate, and a vibrating drive of both sieves; the rectangular cells of the upper sieve are made with the following dimensions:

and 0.75-1.5;

D

-L. 3.5-6, where o.-width of the cell;

b is the distance between cells in the longitudinal direction; c is the distance between cells in the transverse direction; t is the length of the cell.

FIG. 1 shows a crash, general view; in fig. 2 - top sieve, top view; in fig. 3 - bottom sieve, top view. The screen contains the upper sieve 1 and the lower sieve 2, mounted obliquely at an angle of 5-10 °, loading theuka 3 and receiving troughs of the oversized product of the upper sieve, the nares product of the lower sieve and the undersize product, marked 4,5 and 6, respectively, as well as the vibration actuator of both sieve (not shown).

Claims (1)

The upper sieve 1 is made in the form of a sheet sieve with rectangular cells 7, while the rectangular cells of the upper sieve are made in the following dimensions: -1 0.75-1.5 i 3.5-6, where a is the width of the cell; b is the distance between cells in the longitudinal direction; c is the distance between cells in the transverse direction; .-length of the cell. The distance between the grate 8 of the lower sieve is better to be equal to 0.33-0.5 width of the cell of the upper sieve. The magnetic fraction of household waste through the chute 3 is fed to the upper sieve 1. As a result of the vibrations of the sieves under the action of the vibrating drive, the cans are concentrated in the oversize product of the lower sieve 2 (medium size class) and discharged through the chute 5. The device of the lower sieve 2 as a grate the cross-section of the grate 8 with respect to the mixed material makes it possible to almost completely separate the product of the size of cans from black scrap metal. In this case, the distance between the grate bars should be 0.33-0.5 of the width of the upper sieve cell. With a larger and smaller ratio, the homogeneity of the undersize product is reduced. Thus, the proposed screen can be primarily used in the processing of solid household waste with the recovery of valuable components, while the design of the screen allows to increase the efficiency of the separation of tin-containing components, tin cans from the total scrap metal. The invention The screen for separating and sorting the components of scrap metal, containing loading chute, receiving troughs, two sieves arranged one above the other, of which the top one is made with rectangular cells, and the bottom one is in the form of a grate with transverse grate, and the vibrator is both A sieve, characterized in that, in order to increase the uniformity of the undersize product, the rectangular cells of the upper sieve are made in the following dimensions: - | - 0.75-1.5; -L 3,5-6, where a is the width of the cell; B is the distance between cells in the longitudinal direction; c is the distance between cells in the transverse direction; t is the cell length. Sources of information taken into account in the examination 1. Reference enrichment of ores. Ed. O. S. Bogdanova. V. 1, “Nedra, 1972, p. 58 (prototype).