SU1600849A1 - Vibration screen - Google Patents

Abstract

The invention relates to devices for the separation of bulk materials into fractions and can be used in the manufacture of building materials in the mining and metallurgical industries. The purpose of the invention is to reduce labor costs during the maintenance of the screen and to increase productivity by reducing the downtime of the screen. A distribution grid 2 is installed over the sieve (C) 6. With its end, the outlet surface is coupled in the form of a tray 3 with the guide boards 4 and the outlet chute associated with it (G) 5. The width G 5 is smaller than width C 6. Shape performance of Ж 5 can be different: one-handed or two-handed and depends on the width of the screen. On the lattice 2, coarse fractions are preliminarily separated, which are fed to Ж 5. With this discharge of the discharge surface, most of the C 6 remains open, which facilitates access to it. When placing the screen in cramped conditions, the grid 2 can be installed with an inclination perpendicular to the movement of material along C 6. In this case, W 5 is made integral with tray 3 and is installed on C 6 at one of the sides of the screen. By changing the angles of inclination of the grating 2 and Ж 5 you can adjust the throughput of the screen. 3 hp ff, 6 ill.

Description

The invention relates to devices for the separation of bulk materials PS fraction and can be used in the manufacture of building materials in the mining and metallurgical industries.

The purpose of the invention is to reduce the labor costs in the repair of the screen and of the productivity due to the reduction of the screen idle time.

i FIG. I depicts a crash with an odor, a general view, at 4ig. 2 - t | o, top view; in fig. 3 - thro xjoT with two discharge troughs, view to the top; in fig. And - section A-A on fg.Z; in fig. 5 - screen with a chute and a tray mounted directly on the main sieve, top view i in FIG. 6 is a section BB in FIG. five.

The screen contains a duct 1, a distributor / fixture in the form of a grate 2 and its conjugate d unloading .; end of discharge surface. This surface is made in the form of a tray 3 with guide boards 4 and a discharge chute 5 which is conjugate to them 5. The main sieve 6 is set under the distributor.

The grille 2 and the chute 5 are fixed on the transverse links x 7 of the box 1 (figure 2) or on the brackets 8 (figure 4). The width of the shelves of the grid 2 is larger than the openings of the sieve 6. The width of the discharge chute 5 is smaller than the width of the sieve 6. The initial part of the grid 2 is covered by a wear-resistant lining 9, which is made of rubber, for example, and is used to protect against blows falling. particles of the original material. In the gutters 5 can be done. Yen small holes for water drainage when wet screening.

With a small width of the screen, a single strand ti 1 tap can be used, located above the main screen 6 in the middle along the longitudinal axis of the screen.

With a large screen width, the chute can be installed in the form of two streams. Tray 3 with guide boards 4 in this case is performed with two branches, and the streams of the trough 5 can be attached to the side walls of the box on the bracket 8.

When placing the screen in cramped conditions to reduce its vertical dimensions, the distribution grid 2 can be installed with

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the inclination perpendicular to the movement of the material along the sieve 6. In this case, the discharge chute 5 is made integral with the tray 3 and is installed directly on the main sieve at one of the sides of the screen. The easiest way to perform a chute is of an elastic material, for example, rubber sheets with an angled steel edge 4 attached.

The roar works as follows.

The source material, containing fractions of different sizes, is fed to the initial part of the grid 2. Large fractions are preliminarily separated on the grid 2, and small and medium fractions are freely transferred to the main sieve 6. Large particles that have not passed through the grid 2 go to the retraction. This chute 5 is immediately sent to the overhead.

By changing the angles of inclination of the grid and the chute, you can adjust the throughput of the screen to achieve the best classification results.

As a result of this arrangement, the majority of the sieve 6 remains open, which facilitates access to it, and its sieve does not require dismantling of the elements located above it.

In addition, the tray Zi chute 5 can have a much more sloping angle than that of the sieve 6, due to which large fractions quickly move and move away from the screen, reducing the load on its elements.

Claims (4)

1. Vibrating screen, including a sieve box, an oscillating vibration exciter, a distribution grid installed above the sieve, the openings of which are larger than the sieve openings, and a diverting surface adjacent to its discharge end, By the fact that, in order to reduce the labor costs for the repair of the screen and to increase the production capacity, by reducing the downtime of the screen, the discharge surface is made in the form of a slot with guide rails and a discharge chute associated with it. The width of which is less than the width of the sieve. 2. The screen according to claim 1, is different from the one and the other with the fact that the discharge chute is single-handled and installed along the longitudinal axis of the screen. 3. The screen according to claim 1, which is different from the fact that the discharge chute is made two-handed, each of which has a creek installed at the walls of the box.f 926 41L 6008496 4. Rattle according to claim I, of the first and the second, with the fact that the distribution grid is razbpten with a slope perpendicular to the movement of the material on the sieve, and the discharge chute with a tray is installed on a sieve of one of the sides rumble five Fig.Z phage. fe.5 Editor L. Gratilllo Compiled by B. Levchayev Tehred M. Khodanich Korrekto1 / n. King Order 3233 Circulation 519 VNIIP.I of the State Committee for inventions and discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk nab. Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 6 Subscription