Explosion relief means
AssigneeSteetley Engineering Limited
InventorDennis G. Bloomfield
Life of this patent
Estimating the term…
Abstract
A processing plant involving the heat treatment of materials which are in finely divided state is provided with explosion relief means afforded by a door pivotally mounted across an opening in the wall of the plant. A lip of the door engages a resilient seal extending around the periphery of the opening, and the door is held in a closed position by a rupturable element which breaks when the pressure within the plant rises above a predetermined pressure to allow the door to open. There is additionally provided, extending across the door, an elongate tension member which is operative, subsequent to initial opening movement of the door, to apply a force to cause the door to return to its closed position, to minimise the subsequent drawing into the plant through the opening of air.
Claims19
In or for a processing plant, explosion relief means adapted to be mounted over an opening in the processing plant, to provide relief for the plant in the event of an internal explosion, said relief means comprising
- (a) a mounting device adapted to be secured to the plant adjacent to the opening;
- (b) a securing device adapted to be secured to the plant on the side of the opening generally opposite to the mounting device;
- (c) a door assembly adapted to be mounted on the mounting device for pivotal movement relative thereto;
- (d) closing mechanism operative between the door assembly and the securing device to hold the door assembly in a closed position relative to the opening, said closing mechanism being adapted to allow the door assembly to open when the pressure within the plant rises above a predetermined pressure;
- and
- (e) an elongate tension member adapted to be mounted so as to extend across the door assembly and which is operative, subsequent to initial opening movement of the door assembly, to engage the door assembly and to apply a force to the door assembly acting to move the door assembly towards its closed position.
Dependencies are inferred from the claim text.