SU66374A1 - Coal Enrichment Device - Google Patents

Description

For enrichment of coal and other materials similar to coal, devices are used which operate on the principle of iopoliovai differences in the coefficients of the third components of the enriched materials. In these devices, an inclined, curved trench (reschtak) is used.

The device proposed by the present invention relates to ITE.

the latter, but differs from them in that the zholob has two bends. The material moving along the chute under the action of inertial force, when changing the direction of motion on the bends, is directed through the board; At the same time, m on the first bend fall over the edge of the fraction, in the middle, the smallest coefficient of friction, for example, pyrite or limestone, and on the second bend - coal, separated from flat grains of shale.

In order to better separate the fractions of material removed through the board, the chol is divided into separate pyKaiBa with a reduced total width compared to the head part of the chute.

In FIG. 1 depicts the construction of the Zholob; FIG. 2 — enrichment device.

The proposed device is installed on a modular drift on

a distance of 10–15 m from the place of loading the coal from the belt conveyor into the mine wagons.

The entire device, when | | is placed in a typical section of the roadway and does not require additional expansion.

The overall dimensions of the proposed device depend on the actual performance of the belt conveyor (the performance of a pair of lavas), but with maximum performance they do not exceed 1600 mm in height, not more than 1200 mm and 3000 mm in length.

The belt conveyor existing on the collecting drift / is set at a distance of 10–15 m from the MiecTa loading into the vanities (Fig. 2).

The discharge head of the belt conveyor / rises to the design height (up to 1600 m.m) above the bottom of the roadway. Down below the discharge head of the main belt conveyor at a distance of up to 1,400 mm is located the loading head of a small belt conveyor 2 with a length of 10–15 m.

Tra1N1sportI ryu11y coal from the main belt conveyor rolls along the profiled lattice trenches, 36, Sv to the small belt TpaiHonoprep 2, from which (unload directly from the IB line of the grid.

Depending on the limits of the sizes of the pieces found in rows of coal, "attrimer, from 12 mm shtai to 250-300 mm, the number of profiled chute may be increased or decreased.;

The profiled trough (Fig. 1) is an inclined plane with the Eumene Ymis imis in space dimensions.

For each of the grooves, the angle of the class is divided into a divided class; for example, on a rack Pan for coal rolls with the sizes of pieces from 150 IM1M and higher, on a pan of 36 - 80-150 MM, on a rack of 56 - 30-80 mm, etc.

The division into classes takes place at room level 10, and a naklan lattice, having it, and the upper part of each pan, “and which coal gets directly from the main conveyor.

Coal of a certain class rolls down the inclined grid strictly into one layer; no crowding is allowed. This is achieved by dividing the entire supply along the main conveyor of the mass of coal into four layers {per fit. 2 are marked with arrows. I, / I and IV) and an increase in the speed of movement of coal on the pan-stands compared with the growth of the main tape trasporter.

The coal that falls from the grate is divided into two (or more, depending on the specific data) flow, which is reduced in width to the minimum possible under observance; obligatory condition of single layer.

Under the first bend of all panes (Fig. 1), self-folding iron sleeves 5 are positioned to roll all bodies to NIM1 with a K01 friction ratio, lower than the friction coefficient of coal. The second sharp bend of all the pans is located above the leita of the small tra1N1Sporter. Okanch Y (Bayu11s 1; all profiled pans with special heat pipes

With guides. All bodies with a coefficient of friction greater than the coefficient of friction coal in a special bunker.

On both bends, all panes have a raised outside board. The height of this side is calculated from the 1 st condition, so that through it the bodies with the definition of friction, i.e., bodies which, due to rolling on an inclined plane lying above this bend, accumulate velocity ( manpower) sufficient to overcome the height of the outer side.

Thus, each body, with its inherent (to it, the coefficient of 1treny for iron, will have its own specific iCKOpOCTb.

The outer side height and its nakloin angle (the first bend of the pans are designed so that the manpower accumulated by the bodies with a certain ratio of friction when moving along the slope of the plane is sufficient to overcome the board height. Thus Coal-associated rocks that have a friction coefficient less than 1 coefficient of coal friction, for example, pyrite, limestone, etc. In the second sharp bend of the pan, coal is separated from (rocks with a coefficient of friction greater than itsient friction coal "For example, various clays reflux. p.

In each case, the coefficients of friction between coal and all associated rocks must be strictly defined. The variations of the IBI friction coefficients of the defined limits are permissible, since the calculation of the height of the outer sides on the bends of the shaped pan should take into account some limits from minimum to maximum.

Subject invention

Claims (2)

1. A device for the enrichment of coal or other materials based on the differences IB (Coefficients of friction components using: an inclined “bent chute (pan), which is because the chute” has two bends to direct the action of the three movements of the material along the chute of inertia through its tarp on the first bead of a fraction having the lowest friction coefficient, for example, pyrite, or limestone, and then on the BTOpoiM bend - coal with separation from flat grains of slate. 2. The form of the device according to claim 1, characterized by the fact that in order to better separate the fractions of the Material that are removed through the board, the cholice is broken up into separate sleeves with a reduced total width against the head part of the chol. FIG. 2 Behind