RU2522645C1 - Device for mixing bulk materials - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: device contains loading and discharge devices, a frame, on which installed is a horizontal reservoir, formed by discs, fixed on shafts, and an endless belt, enveloping them, tension and drive rollers; a horizontal reservoir consists of two parts - upper and lower branches; spiral guides, which have opposite direction of turns on different sides, are located on both sides of the endless belt. Its edges are provided with overflow and discharge openings, with an inclined tray being installed in the zone of openings, mixing devices from elastic elements, located in a spiral, are fixed on shafts, traction chains are fixed to butt ends of the endless belt, and discs, drive and tension rollers are made in the form of stars, contacting with the traction chains.

EFFECT: increased efficiency of the process of mixing wet and predisposed to agglutination materials.

2 cl, 3 dwg

Description

The present invention is intended for use in the chemical industry, the production of building materials and other industries.

A device for granulating agricultural products [A.S. USSR No. 1386277], containing devices for loading components and unloading granules, a frame on which is mounted a horizontal container formed by disks fixed to the shaft and covering them with an endless belt, tension and drive rollers. The blades are placed on the surface of the tape. Despite the fact that this unit is not intended for mixing bulk materials, it is close in design to the proposed invention.

The disadvantages of this device include the complexity of the design and the inability to conduct mixing processes prone to sticking materials.

Closest to the proposed invention is a mixer [RF Patent No. 2191622], containing devices for loading the components to be mixed and unloading the finished mixture, a frame on which a horizontal tank is mounted, formed by disks fixed to the shaft and covering them with an endless belt, tension and drive rollers. The blades are placed on the surface of the tape. Fixed horizontal rollers are installed inside the mixer.

The disadvantages of this mixer include the complexity of the design and the inability to obtain homogeneous mixtures of substances prone to adhesion and agglomeration, as well as, most importantly, the lack of reliability of the design due to the lack of a hard connection of the disks to the tape. It is possible for the tape to slip relative to disks that are different on both sides, and thereby fail the entire unit.

The objective of the invention is to provide a device for mixing bulk materials having a simple structure, a sufficiently high reliability and allowing mixing of materials prone to sticking and aggregation.

This object is achieved in that in a device for mixing bulk materials containing loading and unloading devices, a frame on which is mounted a horizontal tank formed by discs mounted on shafts and covered by an endless belt, tension and drive rollers, the horizontal tank consists of two parts - the top and lower branches, on both surfaces of the endless ribbon there are spiral guides having opposite directions of turns on different sides, and at its edges and unloading windows, and an inclined tray is installed in the window area, mixing devices of elastic elements arranged in a spiral are fixed on the shafts, traction chains are attached to the end parts of the endless belt, and disks, drive and tension rollers are made in the form of sprockets in contact with traction chains.

Figure 1 shows a device for mixing bulk materials.

Figure 2 shows a view on the right.

Figure 3 shows a left view.

A device for mixing bulk materials consists of devices for loading the mixed components 1 and 2, frame 3, on which horizontal containers are installed, formed by sprockets 7, 8, 9, 10 attached to the shafts and enveloping them with an endless tape 4. On both surfaces of the endless tape there are spiral guides 5 and 6, the direction of the turns of which is opposite. Traction chains 18 and 19 are installed on the sides of the endless belt.

Such a design of horizontal containers in the form of an endless ribbon with chains in the side parts gives it the desired shape and greatly simplifies the design of the device compared to known analogues.

The mixing devices are attached to the shafts and are spirals, the turns of which are made in the form of elastic elements 13 and 14.

To move the mixture from the top to the bottom on the ribbon, windows 12 are cut and a tray 11 is installed.

The drive belt and the mixing shafts of the devices is carried out from the electric motor 17.

The prepared mixture is poured into the discharge device 15 through the discharge windows 16.

The device operates as follows.

Bulk materials to be mixed from the loading devices are fed to the top of the horizontal container. When the tape moves, the materials move axially along the turns of the spiral guides, they are continuously poured and mixed. Mixing is also carried out by mixing devices.

Due to the combined effect of continuous pouring, longitudinal movement and the effect of mixing devices, possible agglomerates, lumps, etc. are destroyed.

When the materials reach the opposite side of the tape, the mixture enters the lower part of the horizontal container through the fill windows and the tray, which prevents the mixture from spilling through similar windows in the lower part of the tape. When the mixture moves along the turns of the spiral guides in the opposite direction, a similar further mixing and even more averaging of the composition of the mixture occurs.

Due to the fact that the mixed materials are exposed to mixing devices during the whole process, the formation of agglomerates during processing of components prone to sticking is excluded, and clumping is avoided in the case of materials of different humidity.

The implementation of the mixing organs in the form of spirals of elastic elements prevents wear of the tape, and their repeated deformation more intensively affects the particles of the mixed substances, which improves the quality of mixing.

The process of unloading the finished mixture is carried out through the unloading window into the unloading device.

Due to the fact that the horizontal container is made of two branches located one above the other, the processing time — the mixing of materials — increases, which leads to an increase in the homogeneity of the mixture with a small device.

It is important that in this device, within the same dimensions of the apparatus, two-fold mixing of granular media is carried out in both one and the other directions.

The proposed device for mixing bulk materials has a fairly simple design and is able to obtain homogeneous mixtures of components prone to sticking, agglomeration, as well as wet materials.

Claims (2)

1. A device for mixing bulk materials containing loading and unloading devices, a frame on which is mounted a horizontal tank formed by discs mounted on the shafts and covering them with an endless belt, tension and drive rollers, characterized in that the horizontal tank consists of two parts - the upper and lower branches, spiral guides are placed on both surfaces of the endless belt, having opposite directions of turns on different sides, and overflow and unloading are made on its edges windows, and an inclined tray is installed in the window area. 2. A device for mixing bulk materials according to claim 1, characterized in that mixing devices of elastic elements arranged in a spiral are fixed on the shafts, and traction chains are attached to the end parts of the endless belt, and the disks, drive and tension rollers are made in the form of sprockets in contact with traction chains.

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