Conical fuel particulate distributor for coal supply conduit
AssigneeSAS Global Corporation
InventorsDavid Allen Billings, Jr., Justin James-Paul Bennett, Kevin Raymond Kleist
Life of this patent
Estimating the term…
Abstract
A conical cylindrical distributor for particulate coal being fed from a mill/pulverizer to a combustion chamber has concentric, vaned flow channels terminating in dentillated plated extending partially across the flow paths directly at the outlet ends thereof to create turbulence and particle impact to better supply the combustion chamber with a uniform mixture of coal particles.
Claims10
A particulate distributor for pulverized coal flowing to a combustion chamber, the particulate distributor comprising:
- an inner cylinder;
- an outer cylinder concentric with the inner cylinder;
- an intermediate cylinder concentric with the inner cylinder;
- a first flow channel defined between the inner cylinder and the intermediate cylinder, the first flow channel having first vanes each extending between and attached to the inner cylinder and the intermediate cylinder to divide the first flow channel into first flow subdivisions;
- a second flow channel defined between the intermediate cylinder and the outer cylinder, the second flow channel having second vanes each extending between and attached to the outer cylinder and the intermediate cylinder to divide the second flow channel into second flow subdivisions;
- a diffuser structure attached to at least some of the vanes in the distributor structure, the diffuser structure being configured to reduce a cross-sectional area of each of the first flow subdivisions and the second flow subdivisions at an outlet side;
- and
- wherein said diffuser structure comprises a plurality of abrasion resistant plate members, wherein each plate member has opposed longitudinal edges extending radially in relation to the inner cylinder and having spaced apart teeth formed in at least one of the opposed longitudinal edges to provide an impingement surface extending between the opposed longitudinal edges and into at least one adjacent first flow subdivision or adjacent second flow subdivision.
A conical fuel particulate distributor for pulverized coal flowing to a combustion chamber, the particulate distributor comprising:
- an inner cylinder;
- an outer cylinder concentric with the inner cylinder;
- an intermediate cylinder concentric with the inner cylinder;
- a first flow channel defined between the inner cylinder and the intermediate cylinder, the first flow channel having first vanes each extending between and attached to the inner cylinder and the intermediate cylinder;
- a second flow channel defined between the intermediate cylinder and the outer cylinder, the second flow channel having second vanes each extending between and attached to the outer cylinder and the intermediate cylinder;
- and
- an outlet structure attached at an outlet side of the particulate distributor, comprising:
- a number of plate members, each member aligned with an outlet edge of a respective first vane or a respective second vane and comprising:
- opposed longitudinal edges having teeth formed therein, the teeth extending into one of the first flow channel or the second flow channel and
- forming an impingement surface configured to reduce a cross-sectional area of each of the first flow channel and the second flow channel.
Dependencies are inferred from the claim text.