RU2165294C1 - Device for dispersion of lumpy material - Google Patents

Abstract

FIELD: dispersing frozen briquettes. SUBSTANCE: proposed device includes housing, abrasive rotor, briquette supply branch pipes located around axis of rotor rotation; wire brush is engaged with this rotor. Axis of rotation of rotor is located vertically and direction of supply of briquettes is parallel with axis of rotation. Removal of dispersed product is effected through outlet branch pipe with the aid of bladed disk located in one axis of rotation of rotor; blades of this disk are mounted at angle in direction opposite to sense of rotation of rotor and worm agitator is mounted in outlet branch pipe. Briquette supply branch pipes may have form of sectors in section perpendicular to axis of rotor rotation. Briquette supply branch pipes and wire brush may be provided with guides for maintenance of distance between them and working surface of rotor. EFFECT: intensification of grinding process. 3 cl, 3 dwg

Description

 The invention relates to devices for grinding materials and can be applied in those industries where a finished product is required in a ground state, for example, in a power system for dispersing fuel coal with a size of about 90 microns.

 The closest in technical essence of the invention is a device for dispersing bulk material, mainly frozen in briquettes, containing a housing, an abrasive rotor, a supply pipe of briquettes and an output pipe / 1 /.

 The disadvantage of this invention is the insufficient intensification of the destruction process, especially of bulk material that is out of contact with the working disks, i.e. in the center of the working area, and thus the difficulty of obtaining crushed mass with the same degree of dispersion of the finished product.

 The objective of the invention is to intensify the dispersion by providing active contact of the briquette material with the abrasive surface of the working disk.

 This task is achieved in that the device for dispersing bulk material, mainly frozen in briquettes, comprising a housing, an abrasive rotor, a briquette feed pipe and an outlet pipe, is equipped with additional briquette feed pipes and at least one freely installed metal brush in contact with the rotor moreover, the briquette feed pipes are located around the axis of rotation of the rotor, and the contact surface lies on the generatrix of the truncated cone, while the axis of rotation of the rotor is located vertically, the direction of briquettes feed parallel to the rotation axis the dispersion products are removed from the working zone due to gravitational and centrifugal forces through the outlet pipe using a blade disk sitting on the same rotation axis, the blades of which are located at an angle in the direction opposite to the rotation of the rotor, and the screw nozzle is mounted on the outlet nozzle.

 The briquette feed pipes in a section perpendicular to the axis of rotation of the rotor can be in the form of sectors.

 Briquette supply pipes and a metal brush may have guides to maintain a given distance between them and the working surface of the rotor.

In FIG. 1 shows a general view of a device for dispersing bulk material;
In FIG. 2 is a view B in FIG. 1;
In FIG. 3 is a section AA in FIG. 2.

 A device for dispersing bulk material is made of a housing 1 with a nozzle 2 for feeding briquettes 3, supplied by the guides 4 to the working area 5 under pressure 6, and an outlet nozzle 7 for removing dispersion products, for example, in the form of coal dust 8 from the working area.

 The grinding rotor is made of an abrasive disk 9, mounted on the shaft 10. A brush 11 contacts the abrasive surface of the rotor to clean the disk from “greasy”, which, rotating on the axis 12 with the bearing 13, is mounted on the rod 14, which is pressed along the guides 15 to the working the zone by the spring 16. The dispersion products are delivered from the working zone to the discharge window 17 by means of a blade disk 18, once in the air pipe 19, the dispersion products are crushed by means of a screw agitator 20.

 Air stream 21 blows dispersion products into the outlet pipe.

 The device operates as follows. The bulk material subjected to grinding, after processing the surfactant and bonding into briquettes 3, for example, by freezing, enters the briquette supply pipe 2 and, under pressure 6, is brought into technological contact with a rotating rotor 9. The rotor, having abrasive ability and having a discrete developed surface, implements the dispersion process, i.e., cuts (polishes) the smallest particles (fractions) 22, which, passing through the rotor, are carried out by centrifugal force and gravity, fall into the blade disk, which carries them to the lower the part of the device where the screw agitator (chopper) is located 20. The latter, continuously rotating in the direction 23 and purged by the air flow 21, completes the dispersion process by the turbulence of particle motion and blows coal dust 8 from the device.

 The invention allows to intensify the process of grinding bulk material.

Sourse of information
1. SU 1793967, A, 02/07/1993.

Claims (3)

 1. A device for dispersing bulk material, mainly frozen in briquettes, comprising a housing, an abrasive rotor, a briquette feed pipe and an outlet pipe, characterized in that the device is equipped with additional briquette feed pipes and at least one freely installed metal brush in contact with the rotor, and the briquette feed pipes are located around the axis of rotation of the rotor, and the contact surface lies on the generatrix of the truncated cone, while the axis of rotation of the rotor is located vertically it is tical, and the briquettes feed direction is parallel to the rotation axis, the dispersion products are removed from the working ion due to gravitational and centrifugal forces through the outlet pipe using a blade disk sitting on the same rotation axis, the blades of which are located at an angle in the direction opposite to the rotation of the rotor, and a screw agitator is mounted in the outlet pipe.  2. The device according to claim 1, characterized in that the briquette supply pipes in a section perpendicular to the axis of rotation of the rotor are in the form of sectors.  3. The device according to claim 1, characterized in that the briquette supply pipes and a metal brush have guides to maintain a given distance between them and the working surface of the rotor.

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