SU455753A1 - Climatiser - Google Patents

Description

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The invention may be applied in the building materials industry, in construction, and in other branches of the national economy.

Classifiers are known that comprise a housing, a separation chamber with rotating walls, adjustable guide vanes and a window for draining the fines, a feed hopper and a conveyor for dispensing large fractions.

The purpose of the invention is to increase the productivity and efficiency of the separation.

This is achieved by the fact that the separation chamber is made with guide elements arranged in a spiral between the guide vanes and the rotating walls.

FIG. Figure 1 shows schematically the classifier described, a section along the plane of rotation of the walls of the separation chamber.

The classifier has a housing 1, a feed funnel 2 for feeding material into the separation chamber 3 and an outlet 4 for air flow. The separation chamber is bounded by rotating walls 5 and a channel 6 formed by additional guide elements 7 and guide vanes 8. The latter are concentric with respect to rotating walls, and the guide elements are arranged in a spiral with respect to the walls.

In the peripheral part of the housing there is an auger 9 for discharging a large fraction. For suction of the finished product, a central window 10 is used in one of the rotating walls 5 of the separation chamber 3.

Classifier works as follows.

The material entering through the feed funnel 2 into the channel 6 is exposed to air currents and a force field created as a result of the discharge that occurs in the exit window 4 using guide vanes 8 and additional guide elements 7. In channel 6 under the influence of air streams and force the floor is the primary separation of the material

into two fractions.

The coarse fraction moves along the inner walls of the guide vanes 8 into the screw 9, and the small fraction enters through the slots between the additional elements 7 into the separation chamber 3, where the secondary separation of the material into two fractions occurs. The coarse fraction, moving along the inner surface of the additional guide elements 7, enters the screw 9, the thin fraction

(finished product), divided in the separation chamber 3, exits through the central window 10 located in one of the rotating walls of the separation chamber 3.

Subject invention

A classifier comprising a housing, a separating chamber with rotating walls, adjustable naravlie blades and a window for withdrawing the fines, a feed hopper and a conveyor for issuing a large fraction, characterized in that, in order to increase productivity and separation efficiency, the separation chamber is made with elements mounted in a spiral between the guide pads and rotating vanes and rotating walls.

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