SU1717262A1 - Drum screen cleaning device - Google Patents

Abstract

This invention relates to utility technology and is intended to clean the openings of a drum screen. The purpose of the invention is to improve the quality of cleaning the holes of the screen drum (SB) 1 from the textile or fibrous material stuck in them. The device has a cylindrical brush (U) 3, equipped with a reversing drive and mounted on a reversing trolley (PT) 6 movable along the SB 1, PT 6 is installed in rails that are fixed with the possibility of vertical adjustment above the SB 1- The axis of rotation U 3 perpendicular The axis of rotation of the SB 1. The reverse of the direction of movement of PT 6 and the direction of rotation of U 3 is blocked. A comb 16 is fixedly fixed on the casing 2 above U 3. At the first passage of the thyroid gland of the sub-section 1, the textile or fibrous material can be placed. not completely removed from the holes. When re-passing this area, the SB 1 rotates U 3 in the opposite direction. This avoids smoothing the fibrous material lying on the outer surface of the SB 1. 2 zlf-ly, 3 ill.

Description

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The invention relates to municipal engineering, in particular to the equipment of plants for the processing of solid household waste, and is intended for cleaning the openings of drum screens.

The aim of the invention is to improve the quality of cleaning the holes of the sieve drum from the textile or fibrous material stuck in them.

Fig. 1 schematically shows a cleaning device; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a view B in FIG. 2

A device for cleaning the drum screen comprises a cylindrical brush 3 disposed between the upper part of the cylindrical sieve drum 1 and its casing 2, which is driven through the reduction gear 4 by an electric motor 5. The axis of rotation of the brush is perpendicular to the axis of rotation of the drum.

The brush 3 with the drive is mounted on a reversing carriage 6, which has the ability to move along the generators of the sieve drum 1 along the guides 7.

The guides 7 are attached to the casing 2 by brackets 8. The cart 6 is driven by the electric motor 9 through the gearbox 10, the driving drum 11 and the tension drum 12 by a cable 13,

The electric motor 9, the gearbox 10 and the drive drum 11 are attached to the casing 2 by brackets 14. The tension drum 12 is attached to the casing 2 by brackets 15.

In the upper part of the casing 2 above the brush 3, the comb 16 is secured to interact with it.

The limit switches 17 and 18 serve to simultaneously change the direction of movement of the carriage 6 and the direction of rotation of the brush 3. For vertical adjustment of the position of the brush 3 relative to the sieve drum 1, the guides 7 are fixed to the brackets 8 in the vertical slot holes.

The cleaning device works as follows.

Brush 3 has two positions: working, when the pile of the brush 3 rubs against the surface of the sieve drum 1, and non-working when the brush 3 is raised and the pile does not touch the drum 1. This is caused by the fact that the dirt of the sieve holes depends on the humidity garbage, and the humidity varies seasonally. When the humidity is less than 40%, "sieve cleaning is not required. Adjusting the position of the brush 3 relative to the surface of the drum 1 is necessary for operation: as the pile wears, the brush 3 must be lowered. This is achieved by slotting holes in the mounting brackets 8 of the rails 7.

Turning on and off the drive for rotating and moving the brush 3 is blocked with turning on and off the drive for the sieve drum 1.

When the brush 3 is turned on, it is brought to the working position, begins to rotate around its axis and at the same time move along the drum 1 on the carriage 6 along the guides 7,

When approaching the end of the screening surface, the limit switch 18 is activated, and the brush 3 begins to rotate and move in the opposite direction. When approaching the opposite end of the screening surface, the limit switch 17 is activated, the direction of rotation and movement of the brush changes again and the cycle repeats,

When the brush 3 passes through the comb 16, the brush pile is cleared of material stuck and stuck therein.

During the first passage of the brush 3 of any part of the drum 1, the textile or fibrous material may not be completely removed from the holes. One end of it will be inside the drum 1, and the second will be on the outer surface of the drum 1 in the direction of rotation of the brush 3.

When this section of the drum 1 is re-passing, the brush 3 rotates in the opposite direction, which avoids smoothing the fibrous material lying on the outer surface. This is provided by an odd number of brush passes over the entire surface of the drum.

By selecting the rotational speeds of the brush 3 and the movement of the carriage 6, an optimum degree of cleaning of the sieve drum can be achieved.

When you turn off the brush 3, it takes a non-working position.

Claims (3)

1. A device for cleaning a drum screen, including a casing mounted over a cylindrical sieve drum with the possibility of rotating a cylindrical brush and driving a brush, characterized in that, in order to improve the quality of cleaning the holes of the sieve drum from the stuck textile or fibrous material, the device equipped with a reversing carriage mounted in guides along the generatrix of the sieve drum, on which a cylindrical brush is mounted, the axis of rotation of which is perpendicular to the p- axis rotated and a sieve drum, while the rotational drive of the brush is reversible, and the guide carriages are arranged to adjust the height of their installation above the sieve drum. 2. The device according to claim 1, wherein the reverse direction of the movement of the carriage and the direction of rotation of the brush is interlocked. vг t g / Z 9 View B to if / 4 b ft 6 1Ј 4 3 5 Ј15 fe3 3. Device pop. 1, characterized in that it is provided with a comb mounted on the casing above the brush with the possibility of interacting with it, 6 l