Patent ID: 9617087
Date: 2017-04-11
CPC Classifications: B65G,F23C,F28C,F28D,F28F,Y10T

Claim:
1. A solids flow control valve comprising: a standpipe; a shoe; a transport pipe, wherein the standpipe is in operative communication with the shoe and lies upstream of the shoe, the standpipe includes a first end and a second end, the first end is in contact with a source that contains disposable solids, the second end is in fluid contact with the shoe, and the shoe being operative to restrict the flow of the disposable solids; the transport pipe being disposed downstream of the shoe to receive and transport the solids from the shoe; and a housing that is in a protective relationship with the shoe and surrounds the shoe, and the shoe includes a heel, a base and a toe, wherein the heel, the base and the toe each contact one another, with the toe being inclined to the base at an internal angle that is within a range of 105 to 135 degrees, and the toe has substantially the same vertical footprint as the heel, wherein the shoe includes at least two ports for admitting a pressurized fluid, at least one of the ports is located at the heel, while at least one of the ports is located at the base of the shoe, the port at the base of the shoe contains a porous sintered frit that is configured to allow low pressurized air to enter into the shoe, and the port at the heel of the shoe contains a sintered frit that is configured to allow pressurized air to enter into the shoe, and wherein the port at the base of the shoe is positioned substantially directly beneath the standpipe and is configured to direct the low pressurized air into the shoe in a direction substantially opposite an inlet flow direction of the disposable solids from the standpipe into the shoe.