RU66235U1 - CLASSIFIER DIVIDER - Google Patents

Abstract

The invention relates to the milling industry, chemical, cement and other industries, can be used for the separation of bulk and powder materials. The classifier-separator contains a cylindrical body, a tangential branch pipe. Inside the classifier, a series of spiral tapes with several outlet pipes for medium, small and large fractions are installed. A series of spiral tapes consists of tapes connected together and installed in the cylindrical part of the cyclone at the site of self-sorting of particles under the action of centrifugal forces. The purified gas is discharged through the exhaust pipe. The technical result is an increase in separation efficiency and an increase in the number of obtained fractions of the material.

Description

The invention relates to the milling industry, chemical, cement and other industries, can be used for the separation of bulk and powder materials.

A device is known (see S. Veselov, “Designing ventilation installations of grain storage and processing enterprises.” - M .: Kolos, 1974, p. 89), containing a cylindrical housing with a tangential inlet pipe, an outlet pipe and an exhaust pipe. The dust-gas mixture enters through the tangential inlet pipe and acquires a rotational motion. Under the action of centrifugal force, the particles move radially to the cyclone forming wall. Further, the deposited particles under the action of gravity moves along the walls of the cone to the outlet pipe. The purified gas is discharged through the exhaust pipe.

A device is known by A.S. USSR No. 451470, class B04C 5/14 containing a cylindrical conical housing with a tangential inlet pipe, a spiral nozzle, an outlet pipe and an exhaust pipe. The dust-gas mixture enters at a high speed into the cyclone body, acquires rotational motion in it, and enters its conical part. The spiral nozzle prevents solid particles from bouncing back into the gas stream.

Particles of material extracted from the gas stream move along a spiral nozzle to the exhaust pipe. The purified gas is discharged through the exhaust pipe.

The disadvantages of these devices are: a limited number of obtained fractions of the shared material; the process of segregation of particles of the material when in the cylindrical part of the cyclone after the active separation section is not taken into account, which contributes to the ingress of large particles into the fine fraction and vice versa the coarse into fine, and therefore helps to reduce the separation efficiency.

The technical task is to increase the separation efficiency and increase the number of obtained fractions of the material.

To do this, in the proposed classifier-separator in the cylindrical part of the cyclone, a series of spiral tapes installed in the cylindrical part of the cyclone.

Figure 1 shows the classifier-separator, a longitudinal section.

Figure 2 is a section aa.

The classifier-separator contains a cylindrical housing 1, a tangential pipe 2.

Inside the classifier, a series of spiral tapes 3 with several outlet pipes for medium 4, fine 5 and coarse fraction 6 is installed. A series of spiral tapes consists of tapes connected together and installed in the cylindrical part of the cyclone at the site of particle self-sorting under the action of centrifugal forces. The purified gas is discharged through the exhaust pipe 7.

Classifier-separator works as follows. The material to be separated, consisting of at least a large, medium and small fraction by pneumatic conveying after grinding by means of a negative static pressure of the fan included in the system behind the classifier, enters the inlet of the cyclone 2 and acquires a rotational movement in it. The material, under the action of centrifugal forces, performs self-sorting and, when approaching the row of spiral ribbons 3, the coarse fraction moves to the cyclone generatrix, enters the channel of the row of spiral ribbons extreme from the center and enters the cyclone 6 outlet pipe along the generatrix. The middle and small fractions fall respectively in the middle the channel and the channel located near the axis of the cyclone and through spiral tapes enter the outlet pipes 4 and 5.

Claims (1)

A separator classifier comprising a cylindrical body with a tangential inlet pipe, characterized in that a series of spiral tapes are installed in the cylindrical part of the cyclone.