SU481329A1 - Bulk Qualifier - Google Patents

Description

one

The invention relates to devices used for dividing bulk materials into classes. The classifier can be used in many industries, in particular, in the corner,. 5 coal preparation, for the production of building materials, in the classification of ores, etc.

The classifier of bulk materials is known, which contains a device for feeding the source material and a system of rotatable parallel rolls equipped with calibrating elements.

However, the well-known classifier has a complex structure and low classification efficiency due to the large contact area of the sorting system with the material being classified.

The purpose of the invention is to improve work efficiency and simplify the design.

For this, the proposed classifier 20 is provided with a carrier surface moving the source material, located under the system, parallel rolls, and the calibrating elements are made in the form of rods: fixed on each of the rolls along two 25

right and left helix lines starting in the middle of the roll, with the rods spaced from each other along the forming roll at a distance corresponding to a given size of the classified material and moving from the start roll to the end roll. The rods on the shaft can be fastened by multiple spiral lines with variable screw pitch; and electromagnets can be installed in the rolls.

FIG. 1 shows the scheme of the proposed classifier, a plan; in fig. 2, section A-A in FIG. one.

The classifier consists of a moving surface 1 carrying the source material, located under the system of parallel rolls 2. On each of the blasts, two spiral lines t 3 of the right-to-left version, starting in the middle of the roll, are fixed with gage elements made in the form of rods 4. Rods spaced from each other along the forming roll at the distance corresponding to the specified size

size of the classified material and decreasing from the initial roll

To the final.

Above the bearing surface 1 set-; protective foam gutter 5; classified material is unloaded into collections. 6. Electromagvites 7 are mounted in rolls 2.

Classifier works as follows.

The source material is continuously fed with SOM through the loading chute 5 onto the moving surface 1 moving in the direction of the arrow C. When the rollers 2 rotate towards the movement of the bearing surface 1, the rods 4 are immersed in the layer of the material being classified, retain the large classes and move. them sideways along helical lines 3. The fine material, which came out of the zone of action of the rods of the first p of the rolls, the grain size of which allowed it to pass between the rods, is processed by the rods of the second, longer; roll 2 and so on to the final roll.

The length of the rolls is increased as the width of the material flow on the near surface increases. The sorting operation is completed on the final roll 2:

after which on the bearing surface | there are layers of classified ma

The rial entering the relevant compartments of the collection 6.

Subject invention

Claims (3)

1. Classifier of bulk materials. containing a device for feeding the source material and a reducible system in rotation and supplied with calibrating elements of parallel rolls, about t and h ay n and with jii so that, with tedyu - increase of work efficiency and simplification of the structure, the classifier is equipped with a bearing surface moving the source material, located under the system of parallel rolls, and the calibrating elements are made in the form of rods fixed on each of the rolls along two screw lines of the right and left execution, beginning in the middle , wherein the rods are spaced from each other along the forming roll at a distance corresponding to a given size of the classified material and decreasing from the initial roll end. 2. Classifier according to claim 1, which is based on the fact that the rods are fastened to the shaft along multi-lead screw lines with variable pitch. 3. Classifier on the PP. 1 and 2, characterized by the fact that electromagnets are mounted in the rolls. Aa (rig 2