Assembly and method for electrically degassing particulate material
AssigneeKelsey-Hayes Company
InventorWalter J. Rozmus
Life of this patent
Estimating the term…
Abstract
Gas-contaminated particulate material is passed through a vacuum chamber wherein it is subjected to an electric field to charge the gaseous contaminants to cause the gaseous contaminants to separate from the particulate material and enter a gas flow path through a vacuum-outlet conduit inflow communication with a vacuum source. A series of electrical potentials are established in the vacuum outlet conduit by a series of electrodes spaced from one another. Adjacent potentials or electrodes are of opposite polarity and the distance between adjacent potentials or electrodes decreases in the direction of the gas flow path out the vacuum outlet conduit whereby the vacuum and the electrodes move the gases from the vacuum chamber.
Claims16
An assembly for cleaning particulate material which is at least in part contaminated by gas, said assembly comprising;
- a vacuum chamber (28) and a gas outlet conduit extending from said vacuum chamber for connection to a vacuum source, said vacuum chamber having vertically spaced first and second ends with a flow passage at each end for directing the flow of the particulate material into and out of said chamber, electric field-producing means for producing an electric field to subject the gas-contaminated particulate material to the electric field to electrically charge the gaseous contaminants and cause separation of the gaseous contaminants from the particulate material to facilitate removal of the gaseous contaminants along a path of gas flow from said vacuum chamber through said gas outlet conduit wherein said electric field-producing means includes a series of electrodes (43, 44, 45, 46, 47, 48, 143, 145, 146, 147, 148, 143, 245, 246) spaced from one another generally along the path of gas flow from said vacuum chamber through said gas outlet conduit with adjacent electrodes in the series along the path being oppositely charged and the distance between said adjacent electrodes along the series decreasing in the direction of the path of gas flow.
A method of degassing gas-contaminated particulate material wherein gas-contaminated particulate material is passed through a vacuum chamber which is continuously subjected to a vacuum source through a vacuum outlet conduit while subjecting the gas-contaminated particulate material to an electric field to charge the gaseous contaminants, thus causing them to separate from particulate, material and establish a gas flow path through the outlet conduit to the vacuum source, the method further comprising establishing a series of electrical potentials spaced from one another generally along the gas flow path to the vacuum source with adjacent potentials in the series along the path being of opposite polarity and with the distance between the adjacent potentials along the series decreasing in the direction of the gas flow path to the vacuum source.
A method for facilitating the removal of gases from a chamber having a gas outlet conduit in flow communication with a vacuum source comprising the steps of subjecting the gases to an electric field to charge the gases and establish a gas flow path through the outlet conduit, the method further comprising establishing a series of electrical potentials spaced from one another generally along the gas flow path to the vacuum source with adjacent potentials being of opposite polarity and with the distance between adjacent potentials decreasing in the direction of the gas flow path.
Dependencies are inferred from the claim text.