SU915980A1 - Pneumatic separator - Google Patents

Description

The invention relates to chemical engineering, in particular to devices for separating bulk material into fractions, and can be used in various industries that require sorting of material by specific weight.

A pneumatic separating device is known, which includes a rotating cylindrical drum, a housing with discharge openings, a threshold placed at its discharge end, and a discharge chamber equipped with segment steps adjacent from the working space of the drum to the threshold with a gap (11.

The disadvantage is the low efficiency of separation of bulk material due to the rapid sticking of the discharge openings.

Closest to the proposed technical essence and the achieved result is a pneumo-separating device, including

2

housing, inclined granulator drum _n fan, loading and unloading, accessories (2].

The disadvantage is the low quality of separation.

The purpose of the invention is to improve the quality of separation.

This goal is achieved by the fact that the drum granulator is equipped with a dividing device installed in front of the unloading device concentric to the body, and a ring placed in front of the dividing device.

Moreover, the separating device is made in the form of a cylinder, equipped with a helical spiral, the direction of the turns of which coincides with the direction of rotation, the granulator drum.

FIG. 1 shows a pneumoseparating device, an incision; in fig. 2 shows section A-A in FIG. one.

Pneumatic separator device contains inclined to the horizon bar3 91591

Ban-granulator 1, before the discharge end of which is concentric with the body 2, is fixed the separating device 3. The ring 4 is installed from the separating device 3 5

at a distance that corresponds to the distance falling out of the air stream of particles of a large fraction. The air flow is generated from the operation of the fan 5.

The opening of the ring 4 overlaps the flow area of the drum granulator 1 to the height of the maximum load of its fertilizer.

To ensure free passage under the separation device 3 separated particles of a large fraction and create the most optimal conditions for separation, the diameter of the separation device 3 is assumed to be equal to the maximum height of the layer of particles of a large fraction under the separation device.

In the separation device 3 is placed a spiral coil 6, the direction of the turns of which coincides with the direction of rotation of the drum core 1.

The device works as follows.

During the rotation of the drum granulator 1, the pulp, connecting with the retur, forms particles of fertilizer of different diameter and weight. Moving due to the tilt to the horizon of the drum granulator 1, the particles reach the ring 4, where, getting into the air flow in the hole of the ring 4, flying towards the separating device 3.

8 due to the fact that the weight of the particles is different, the particles of a large fraction are not up to> 4

fly to the dividing device 3; and shallow fall into it.

The helical coil 6 moves fertilizer particles into the separator 3, 1 mm in diameter, to its opposite end connected to the return screw 7, which moves the particles of the small fraction to the head of the pelletizer 1, where they are launched into a new cycle.

The use of pneumatic separator device will improve the quality of separation.

15

Claims (2)

Claim 1. Pneumo-separating device, including a housing, a sloping drum valve, a fan, a boot 20 and unloading devices, characterized in that, in order to improve the quality of separation, the granulator drum is equipped with a separating device, mounted in front of the unloading device, concentric to the body, and a ring placed in front of the separating device. 2. The device according to claim 1, about tl and ECHO the fact that the separation device is made in the form of a cylinder, equipped with a helical coil, the direction of the coils of which coincides with the direction of rotation 35 drum granulator.