A device for cleaning and fine-sorting grain metallurgical waste fines and the method for cleaning and fine-sorting grain metallurgical waste fines. The material is fed to the device for cleaning of fine metallurgical waste from the feeding tank (1), by means of a feeding mechanism (2) and is transported to initial separator (3), into which air is blown with a fan (4). The most dusty fractions hovering in the initial separator (3) are directed to the collector (6). However, the largest fractions of metallurgical waste fall to the bottom part, and they are removed with a cascade pipeline (7) directed upwards to the cascade separator (8). Lighter fractions accumulated in the cascade separator (8), are directed to the collector (6), and then to the next cascade separator (15), from where lighter and finer fractions of metallurgical waste are directed to expanded cascade separator (16), and the lightest fraction of waste are then directed to the cyclone dust collector (18).

A device for cleaning and fine-sorting grain metallurgical waste fines and the method for cleaning and fine-sorting grain metallurgical waste fines. The material is fed to the device for cleaning of fine metallurgical waste from the feeding tank (1), by means of a feeding mechanism (2) and is transported to initial separator (3), into which air is blown with a fan (4). The most dusty fractions hovering in the initial separator (3) are directed to the collector (6). However, the largest fractions of metallurgical waste fall to the bottom part, and they are removed with a cascade pipeline (7) directed upwards to the cascade separator (8). Lighter fractions accumulated in the cascade separator (8), are directed to the collector (6), and then to the next cascade separator (15), from where lighter and finer fractions of metallurgical waste are directed to expanded cascade separator (16), and the lightest fraction of waste are then directed to the cyclone dust collector (18).

A compact dedusting apparatus for cleaning particulate materials of contaminates and has a housing defining a cleaning area in which the contaminants are removed to create cleaned particulate material with a product discharge opening through which cleaned particulate material can be discharged. The dedusting apparatus includes an infeed apparatus having a vibratory feed pan powered by a vibration generator to induce vibrations therein. The dedusting apparatus also includes a Venturi chamber to remove contaminants from the particulate material by a flow of air passing upwardly through the product discharge opening. The dedusting apparatus further includes an interchangeable carryover deflector having a chamber extension member that aligns with internal structure to control the flow of particulate material into said Venturi chamber and deflects particulate material entrained in the air flow through the Venturi chamber toward the product discharge opening. The carryover deflector incorporates an observation window to view the dedusting operation.

The invention is used in various branches of industry, in particular in agriculture for preparing seeds for sowing and for selection purposes. The method of separating a granular mixture in a flowing medium is based on a gravitational supply of particles, with an aerodynamic, monotonously increasing action thereon with a cascade of flat jets, said cascade being stabilized in terms of pressure and discharge. Large impurities are removed from the granular mixture beforehand, and stable parameters are maintained in the separation chamber. The device comprises a vibrating screen, an adjustable hopper with an agitator and a vibrating chute, a generator of a cascade of flat jets, which is connected to a drive for supplying air under pressure, a fraction collector and a separation chamber. The output of the separation chamber is covered with a filtering element in the form of a rotating drum with a calibrating sifter on the surface, said sifter being connected to a cyclone.

The invention is used in various branches of industry, in particular in agriculture for preparing seeds for sowing and for selection purposes. The method of separating a granular mixture in a flowing medium is based on a gravitational supply of particles, with an aerodynamic, monotonously increasing action thereon with a cascade of flat jets, said cascade being stabilized in terms of pressure and discharge. Large impurities are removed from the granular mixture beforehand, and stable parameters are maintained in the separation chamber. The device comprises a vibrating screen, an adjustable hopper with an agitator and a vibrating chute, a generator of a cascade of flat jets, which is connected to a drive for supplying air under pressure, a fraction collector and a separation chamber. The output of the separation chamber is covered with a filtering element in the form of a rotating drum with a calibrating sifter on the surface, said sifter being connected to a cyclone.

An apparatus for separating granular material into at least three fractions a static cross-flow sifter and a dynamic sifter. The static has several impact and flow-conducting elements stepped one below the other in a housing having a first material inlet, at least one sifting-gas inlet and at least one coarse-particle outlet. The dynamic sifter has a rod basket rotatable about a vertical axis, a housing containing the basket, and at least one medium-particle outlet and one fine-particle outlet. The housing of the static sifter merges directly horizontally and laterally into the housing of the dynamic sifter.

An apparatus for separating granular material into at least three fractions a static cross-flow sifter and a dynamic sifter. The static has several impact and flow-conducting elements stepped one below the other in a housing having a first material inlet, at least one sifting-gas inlet and at least one coarse-particle outlet. The dynamic sifter has a rod basket rotatable about a vertical axis, a housing containing the basket, and at least one medium-particle outlet and one fine-particle outlet. The housing of the static sifter merges directly horizontally and laterally into the housing of the dynamic sifter.

A device for cleaning and fine sorting grain metallurgical waste fines and the method for cleaning and fine-sorting grain metallurgical waste fines. The material is fed to the device for cleaning of fine metallurgical waste from the feeding tank (1), by means of a feeding mechanism (2) and is transported to initial separator (3), into which air is blown with a fan (4). The most dusty fractions hovering in the initial separator (3) are directed to the collector (6). However, the largest fractions of metallurgical waste fall to the bottom part, and they are removed with a cascade pipeline (7) directed upwards to the cascade separator (8). Lighter fractions accumulated in the cascade separator (8), are directed to the collector (6), and then to the next cascade separator (15), from where lighter and finer fractions of metallurgical waste are directed to expanded cascade separator (16), and the lightest fraction of waste are then directed to the cyclone dust collector (18).

A device for cleaning and fine sorting grain metallurgical waste fines and the method for cleaning and fine-sorting grain metallurgical waste fines. The material is fed to the device for cleaning of fine metallurgical waste from the feeding tank (1), by means of a feeding mechanism (2) and is transported to initial separator (3), into which air is blown with a fan (4). The most dusty fractions hovering in the initial separator (3) are directed to the collector (6). However, the largest fractions of metallurgical waste fall to the bottom part, and they are removed with a cascade pipeline (7) directed upwards to the cascade separator (8). Lighter fractions accumulated in the cascade separator (8), are directed to the collector (6), and then to the next cascade separator (15), from where lighter and finer fractions of metallurgical waste are directed to expanded cascade separator (16), and the lightest fraction of waste are then directed to the cyclone dust collector (18).