SU1214246A1 - Installation for dressing flat fractions of mineral resources - Google Patents

Description

1214246

the gaps between the plates of the lower sieve surface are 1.3-divisions of the sieved particles 3.0 times the width of the gap between the shafts of the cone-particle-size distribution, the width of a different shape at the place of installation of the plates.

2, Installation on n.l is different in that, for the purpose

The invention relates to the field of enrichment and the classification of minerals in minerals by screening and can be used to enrich mica ores with a simultaneous classification of crystals in thickness, as well as in the construction industry for separating flat (crusty) fractions with granular composition.

The aim of the invention is to improve the quality of flat screened particles,

Fig, 1 shows the installation, a top view; figure 2 - the same general view; on fig.Z - section aa in figure 2,

The installation includes two tapered shafts 1 and 2, which provide a variable working gap from 0 to a predetermined size and are associated with a driving device (not shown) that allows them to rotate in opposite directions. In the receiving part of the shafts, an inclined chute 3j is placed in which the raw material from the loading device is fed. To the bed on which the shafts are fastened, a grate 4 is installed, under which the chutes are fastened (the number of chutes is set according to the required number of grades), installed at an angle of natural deflection, to classify the empty poro xy. The grate screen is made with a variable pitch of the plates, equal to () -B, where B is the gap between

0

five

0

five

0

five

2

shafts at the point of installation of this plate.

A rotary comb-type cleaning device is provided to clean the screen when driving the rocks.

The installation works as follows.

The source material, such as mica-containing ore, is fed from the inclined chute 3 to the receiving part of the cone-shaped shafts 1 and 2. The shafts, rotating in opposite directions, intensively mix the material and promote the movement of the finer ore mass downwards, where it falls into in accordance with the whole thickness and moves along the slope.

The flat fractions of mica under the action of displacements are oriented by a plane along the axis of the shafts. Upon further movement along the slope, they fall into the slot and, touching the vertical plates of the grate 4, slide along the inclined profile of the plates, they fall into the receiving hopper (not shown). These fractions do not fall through the grate, as they have a pronounced flage form. The porous, clearly expressed adder structure, falling through the screen into oblique chutes, is classified by granule composition.

Large fractions of mica and rock that did not fall through the working gap of the shafts roll down the tray.

fPij2.2

Editor L. Veselovska

Compiled by E.Papkova Tehred M.Parotsay

Order 822/13 Circulation 566 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

FIG. five

Proofreader E.Roshko

Claims (2)

1. PLANT FOR ENRICHMENT OF FLAT FRACTIONS OF MINERALS OF USEFUL FOSSILS, including the upper and lower slit screening sifters SZZ7 nostalgia, the slits of which are perpendicular to one another, and a loading device, characterized in that, in order to improve the quality of sifted particles of a flat shape, the upper sifting surface is made in the form of two cone-shaped shafts mounted for rotation in opposite directions from the side of the loading device and the lower screening surface is in the form of L-shaped plates, while the working surface of the vertical part of the plates is vertical _{with a} plane passing along the inner! S forming her conical surface of the shaft mounted outside the horizontal part of the plates. SU „, .1214246 FIG. 7 2. Installation according to claim 1, characterized in that, in order to separate the screened particles according to particle size distribution, the width of the slots between the plates of the lower screening surface ^ is 1.33.0 of the width of the gap between the shafts of the conical shape at the place of installation of the plates.