Method and an apparatus for sealing tuyeres in the surrounding refractory lining
AssigneeKlockner CRA Patent GmbH
InventorPaul-Gerhard Mantey
Life of this patent
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Abstract
The invention relates to a method and an apparatus for sealing tuyeres and feed pipes installed in a refractory vessel lining. Seals known per se, in particular prestressable packings, are installed in the gap between the tuyere or feed pipe and the surrounding refractory material in order to avoid backflow of media.
Claims13
A method for sealing feed systems, wherein the feed systems are formed of metal and include tuyeres and feed pipes for injecting media into metallurgical reaction vessels, wherein the feed systems penetrate a vessel lining formed of a refractory material, sad method comprising the steps of:
- providing sealing means of elastically or plastically deformable material;
- providing at least one of pneumatic, hydraulic, and mechanical means disposed to cooperate with aid sealing means;
- installing said sealing means in a gap between the feed systems and the refractory material surroundings said feed systems such that said sealing means prevents a backflow of media, wherein the sealing means is disposed upon an outer peripheral surface of the feed systems;
- applying pressure directly to said sealing means with said at least one of sad pneumatic, hydraulic, and mechanical means in a direction of a longitudinal axis of the feed systems, to radially expand the sealing means to sealingly engage the feed systems and the refractory material surrounding the feed systems, wherein said pressure is applied in a constant and adjustable manner such that a position of the feed systems with respect to the refractory material remains unchanged.
An apparatus for sealing tuyeres and feed pipes for media in metallurgical reaction vessels in which feed systems are installed in a refractory vessel lining, wherein seals of elastically or plastically deformable materials are installed int he gap between the tuyere or feed pipe and surrounding refractory material during assembly of the feed systems in order to avoid backflow of media, wherein one of pneumatic, hydraulic and mechanical means are provided to hold the seals constantly under an adjustable pressure, such that the seals are compressed along a longitudinal axis, thereby radially expanding to sealing engage the tuyere or feed pipe and the refractory material.
Dependencies are inferred from the claim text.