US 2001/0041103 A1 · BULK MATERIAL CONVEYING SYSTEM AND EJECTOR THEREFOR

Abstract

An ejector for providing motive gas for conveying particulate solids from a solids supply vessel through a conveying pipeline includes a gas introduction stage and a solids introduction stage. The gas introduction stage includes a fluids mixing chamber having a principal inlet port for connecting to a source of high-pressure compressed gas, an outlet port connected to the solids introduction stage, and a secondary inlet port that is open to the atmosphere or other low-pressure gas source. The solids introduction stage includes a fluids/solids mixing chamber having an inlet port connected to the gas introduction stage, an outlet port for connecting to a pipeline, and a material receiving port for connecting to a vessel outlet. As the compressed gas enters the gas introduction stage, the high velocity gas induces atmospheric air or other low-pressure gas from the secondary inlet port, thus increasing the mass flow into the solids introduction stage.

Claims21

Dependent claims

An apparatus for conveying particulate solids comprising:

a solids supply vessel for receiving particulate solids to be conveyed and including an outlet for discharging said solids;
a pipeline for conveying said particulate solids;
a source of high-pressure compressed gas;
an ejector connected to said source of high-pressure compressed gas, to said outlet of said vessel and to said pipeline for entraining materials from said vessel outlet in a gas and for moving a mix of said solids and gas through said pipeline;
said ejector including a gas introduction stage and a solids introduction stage, said gas introduction stage including a fluids mixing chamber having a primary inlet port connected to said source of high-pressure compressed gas, an outlet port connected to said solids introduction stage, and a secondary inlet port that is open to the atmosphere or other low-pressure gas supply;
said solids introduction stage including a fluids/solids mixing chamber having an inlet port connected to said gas introduction stage, an outlet port connected to said pipeline, and a material receiving port connected to said vessel outlet.

3 more elements

Dependencies are inferred from the claim text.

Bulk material conveying system and ejector therefor

Life of this patent

Bulk material conveying system and ejector therefor

Life of this patent

Abstract

Claims21