An airflow separator of the present invention includes: a first column into which gas is introduced from a lower portion and inside which a sample is made to flow; a heavy particle recovery device provided at the lower portion of the first column; and a control device configured to control a wind speed by an amount of gas to be introduced into the first column. The first column has a weak rotational airflow generation mechanism to smooth wind speed distribution in a cross-section of a tube of the first column by making it substantially W-shaped from a portion of a wall of the tube to the center of the tube to another portion of the wall of the tube. The heavy particle recovery device recovers from the sample, heavy particles falling down. The airflow separator recovers emission gas, intermediate and light particles from an upper portion of the first column.

An airflow separator of the present invention includes: a first column into which gas is introduced from a lower portion and inside which a sample is made to flow; a heavy particle recovery device provided at the lower portion of the first column; and a control device configured to control a wind speed by an amount of gas to be introduced into the first column. The first column has a weak rotational airflow generation mechanism to smooth wind speed distribution in a cross-section of a tube of the first column by making it substantially W-shaped from a portion of a wall of the tube to the center of the tube to another portion of the wall of the tube. The heavy particle recovery device recovers from the sample, heavy particles falling down. The airflow separator recovers emission gas, intermediate and light particles from an upper portion of the first column.

A system and method for sizing and separating granular particles within the bulk granular solids by creating a graded granular flow comprising multiple sized fractions with gradation of the particles according to particle size between relatively fine fractions and relatively coarse fractions; and capturing at least a portion of granular flow. The system (11) comprises means (25) for creating the graded granular flow, and means (30) for capturing at least a portion of the graded granular flow. The graded granular flow is split into separate streams, one of which is subsequently captured by intercepting that stream. The intercepted stream may be collected or redirected for further processing.

A device for classifying a material mixture of multiple materials has a first transport unit into which the material mixture to be classified is deposited by a supply device. A second transport unit is arranged downstream. A first chute is provided between the first and second transport, via which a first material with a first fluid resistance can be separated from the material mixture. At least one third transport unit is arranged downstream of the second transport unit, such that a transit route for the materials is formed between the second and third transport units. A second chute is provided between the second and third transport units, via which at least the second material with a second fluid resistance can be separated from the material mixture. The third transport unit is designed so that material can pass through and/or a fluid flow can pass through.

A device for classifying a material mixture of multiple materials has a first transport unit into which the material mixture to be classified is deposited by a supply device. A second transport unit is arranged downstream. A first chute is provided between the first and second transport, via which a first material with a first fluid resistance can be separated from the material mixture. At least one third transport unit is arranged downstream of the second transport unit, such that a transit route for the materials is formed between the second and third transport units. A second chute is provided between the second and third transport units, via which at least the second material with a second fluid resistance can be separated from the material mixture. The third transport unit is designed so that material can pass through and/or a fluid flow can pass through.

A separating device separates liquid absorbent fibers from a material including the liquid absorbent fibers of an absorbent article and impurities. The separating device includes: a case; an insertion port for inserting the material into the case on an airflow; a rotation member in the case for agitating and opening the material; and a discharge port for discharging the liquid absorbent fibers from inside the case on an airflow. The rotation member has a revolving axis with an axial direction along a predetermined direction from the insertion port to the discharge port, and a shaft member rotating around a rotating axis that has been set with an axial direction along the predetermined direction, while revolving around the revolving axis. The shaft member has protruding sections protruding outward and intersecting with an axial direction of the shaft member.

A separating device separates liquid absorbent fibers from a material including the liquid absorbent fibers of an absorbent article and impurities. The separating device includes: a case; an insertion port for inserting the material into the case on an airflow; a rotation member in the case for agitating and opening the material; and a discharge port for discharging the liquid absorbent fibers from inside the case on an airflow. The rotation member has a revolving axis with an axial direction along a predetermined direction from the insertion port to the discharge port, and a shaft member rotating around a rotating axis that has been set with an axial direction along the predetermined direction, while revolving around the revolving axis. The shaft member has protruding sections protruding outward and intersecting with an axial direction of the shaft member.

The present invention relates to an apparatus for separating smaller particles from larger particles by means of cyclonic separation. The apparatus comprises a feeding pipe (2) having an upper end (2a) for receiving material to be separated and defining a first channel (3) for transporting the material to a lower end (2b) of the feeding pipe, a separation chamber (5) having a curved wall (7), a first opening (6a) arranged at an upper end (5a) of the separation chamber, a second opening (6b) arranged at a lower end (5b) of the separation chamber, and the separation chamber (5) surrounds the feeding pipe (2) such that a second channel (8) is formed between the feeding pipe and the curved wall (7), an air inlet unit (12) arranged for supplying air to the second opening (6b) of the separation chamber, and an outlet unit (15) arranged for receiving air and separated material from the first opening (6a) of the separation chamber and to discharge the air and separated material. The curved wall (7) is conically shaped and tapers from the second opening (6b) to the first opening (6a), and the feeding pipe and the separation chamber are concentrically arranged.

The invention relates to a device and a method for separating and/or recovering silicate particles from plant material. This device and the method are characterized by an air classifier (3, 14), which has at least one material inlet (4), an air inlet (6), arranged under the material inlet (4), an air outlet (7) and at least one particle receptacle (8), arranged under the air outlet, wherein the plant particles recovered from plant material by crushing can be subjected to an air stream in the air classifier (3, 14) in such a way that silicate particles contained in the plant material are removed by the air stream via the air outlet (7) and, as a result of gravitational force, the plant particles are received by the particle receptacle (8) arranged under the air outlet (7) and taken away.

The invention relates to a device and a method for separating and/or recovering silicate particles from plant material. This device and the method are characterized by an air classifier (3, 14), which has at least one material inlet (4), an air inlet (6), arranged under the material inlet (4), an air outlet (7) and at least one particle receptacle (8), arranged under the air outlet, wherein the plant particles recovered from plant material by crushing can be subjected to an air stream in the air classifier (3, 14) in such a way that silicate particles contained in the plant material are removed by the air stream via the air outlet (7) and, as a result of gravitational force, the plant particles are received by the particle receptacle (8) arranged under the air outlet (7) and taken away.