This powder-classifying apparatus has: a centrifugation chamber configured so as to be sandwiched between two opposing members; an air supply unit that supplies air into the centrifugation chamber and generates a swirl flow; a raw material supply unit that supplies raw-material powder into the swirl flow; a fine powder recovery unit having an opening part through which air that includes fine powder classified within the centrifugation chamber is ejected to outside of the centrifugation chamber; a coarse powder recovery unit provided to the outer edge part of the centrifugation chamber, for ejecting classified coarse powder to outside of the centrifugation chamber; and an annular slit provided to at least one of the members that constitute the centrifugation chamber, the slit being provided in a region between the center part of the centrifugation chamber and the outer edge part.

This powder-classifying apparatus has: a centrifugation chamber configured so as to be sandwiched between two opposing members; an air supply unit that supplies air into the centrifugation chamber and generates a swirl flow; a raw material supply unit that supplies raw-material powder into the swirl flow; a fine powder recovery unit having an opening part through which air that includes fine powder classified within the centrifugation chamber is ejected to outside of the centrifugation chamber; a coarse powder recovery unit provided to the outer edge part of the centrifugation chamber, for ejecting classified coarse powder to outside of the centrifugation chamber; and an annular slit provided to at least one of the members that constitute the centrifugation chamber, the slit being provided in a region between the center part of the centrifugation chamber and the outer edge part.

An improved process and apparatus for separating organics and inorganics from waste material with a specific object of preparing the separated organic fraction for the production of biogas or other methods for diverting organics from landfills. Waste material, such as municipal solid waste or source-separated organic waste (SSO), is subjected to a first separation treatment that separates organic and inorganic waste components. The apparatus includes a hopper to receive contaminated organic waste from different sources, a vertical separator that separates the inorganics from the organics by creating a vortex effect in a stationary filtration drum by which the solid contaminants (paper, plastic, metals) are blown in a spiral pattern upwards and removed from the top, while the organic fraction is removed from the bottom. Such apparatus is improved through several methods to reduce or eliminate blockages and their associated downtime, and to increase the efficiency of the separation process.

An improved process and apparatus for separating organics and inorganics from waste material with a specific object of preparing the separated organic fraction for the production of biogas or other methods for diverting organics from landfills. Waste material, such as municipal solid waste or source-separated organic waste (SSO), is subjected to a first separation treatment that separates organic and inorganic waste components. The apparatus includes a hopper to receive contaminated organic waste from different sources, a vertical separator that separates the inorganics from the organics by creating a vortex effect in a stationary filtration drum by which the solid contaminants (paper, plastic, metals) are blown in a spiral pattern upwards and removed from the top, while the organic fraction is removed from the bottom. Such apparatus is improved through several methods to reduce or eliminate blockages and their associated downtime, and to increase the efficiency of the separation process.

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 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 method and system for the environmental remediation of materials that are contaminated with heavy minerals, such as heavy metals. The invention finds utility in removing heavy minerals from materials such as soils, sediments, mine tailings and ores. The invention provides a means for removing heavy minerals from contaminated materials without the use of water while reducing the generation of dust. Thus, the invention provides an environmentally friendly method for the remediation of sites that are contaminated with heavy minerals.

The invention relates to a method and system for the environmental remediation of materials that are contaminated with heavy minerals, such as heavy metals. The invention finds utility in removing heavy minerals from materials such as soils, sediments, mine tailings and ores. The invention provides a means for removing heavy minerals from contaminated materials without the use of water while reducing the generation of dust. Thus, the invention provides an environmentally friendly method for the remediation of sites that are contaminated with heavy minerals.

A deflector ring includes a generally annular body, and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the annular body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a turret positionable above the deflector ring.

A deflector ring includes a generally annular body, and a plurality of static straightening vanes arranged interior to the body, the vanes dividing the body into a plurality of substantially equal sections. The vanes are configured to straighten a swirling flow of solid particles as they enter the annular body, and to divide the swirling flow into a plurality of straightened flows that are communicated to a turret positionable above the deflector ring.