SU1165495A1 - Rotor of trommel screen - Google Patents

Abstract

DRUM ROUTE ROTOR, j including the drive shaft and mounted on the rotor with the ability to adjust the angle of attack of the row of scourges, characterized in that, in order to simplify the design, the pests are made in cross section with a V-shaped or triangular shape, and the axis of symmetry of the scourges is located to the rotor axis at an acute angle. (L

Description

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The invention relates to a technique (screening of loose materials, namely, a rotor of a drum screen, and can be used in the asbestos industry for dedusting and classifying asbestos concentrates, and can also be used in the milling, food processing and other industrial sectors.

Known drum screen, containing sieve drum, rotor, key central drive shaft, divided along the length of the rims, on which longitudinal whips are permanently fixed, casing with loading and unloading devices and drive L.

The disadvantage of this design is the lack of controllability of screening efficiency 20 due to the inability to change the angle of attack of the rotor scourges, since they are installed stationary, which negatively affects the quality of the final product. . 25

The closest to the invention to the technical essence and the achieved result is a rotor of a drum screen, including a drive shaft and mounted on a rotor with a possibility of adjusting the angle of attack of a row of scourges p.

A disadvantage of the known construction is the laboriousness of manufacturing the rotor, due to the complexity 35 of the design.

The purpose of the invention is to simplify the design. . .

The goal is achieved by the fact that the rotor of the drum screen is 4, switching on the drive shaft and mounted on the rotor with the ability to adjust the angle of attack of the row of scourges, the scourges in cross section are V-shaped or triangular, 45 to the longitudinal axis of the rotor at sharp, angle.

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Figure 1 shows the drum screen, VIEW} in figure 2 - a row of 50 whips of a V-shaped (a), triangular hollow (5), triangular solid (6).

Screens contain casing 1 with loading 2 and unloading devices 55 by you 3 and 4, respectively, for undersize and oversize products, sieve drum 5, in which rotor 6 is placed with rows of scourges 7, installed with the possibility of changing the angle of attack, rigidly fixed 1x to the last , and a reversing drive 8. There is a drive shaft 9, pests 7 are made with a two-sided angle of attack o (, and of, different in size. In this case, the two-sided angle of attack is formed by making the scourge 7 in cross section of a V-shape (Fig. 2a ) or triangular hollow ( .2 2 и and triangular solid (FIG. 26), set so that the axis of their symmetry forms an acute angle L with the longitudinal axis of the rotor 6 So, for example, for processing asbestos-containing products, one of the sides of the whip 7 has an angle of attack of ot | 30-40 and a friend angle is 0 (2 10-20.

Drum rumble works as follows.

The initial product enters through the loading device 2 of the casing 1 into the sieve drum 5, where the whips 7 of the rotor 6 are captured and transported across the surface of the sieve drum 5. The fine fraction — the undersize product is sifted through the sieve holes and unloaded through the device 3 the product due to the scourge 7, the sides of which have angles of attack j or I g is transported to the unloading device 4.

The quality of the product produced, depending on the change in the original product or the requirements for the product, is often subject to changes. In order to obtain a product of the required quality, it is necessary to control the screening efficiency. Dp. This reverses the direction of rotation of the rotor 6, connecting one side or another of the scourge 7, with different angles of attack, 30–40 or 2 10–20.

In the case when in the initial product the content of the undersize fraction is increased, it is necessary to increase the exposure time to the product with the whips 7, while reversing the direction of rotation of the rotor 6, connecting one of the sides of the whip 7 with the SW angle of attack. In the initial product, the content of the undersize fraction decreases, the side of the scourge 7 is connected to the work of the other with the angle of attack oi, 30-40 °. As a result, the quality indicators of the finished product are stabilized or products of another specified quality are obtained.

When working on an abrasive product, continuous whips 7 are triangular in shape, thereby increasing their service life, and when working with a low-abrasive product, whips are V-shaped or triangular hollow in shape.

The proposed design provides a simplified design.

FIG. 2

Claims (1)

DRUM ROTOR ROTOR,; comprising a drive shaft and rows of pests installed on the rotor with the ability to control the angle of attack, characterized in that, in order to simplify the design, the pests in cross section are V-shaped or triangular in shape, and the axis of symmetry of the pests is located at an acute angle to the longitudinal axis of the rotor. П, ПП ППШДДЛХЦ] ² U) Ατι / ⁷ / ^s / ^а G— —i — L l.z— “□> 1165495 2