Shutter having a swellable peripheral seal and shutting system comprising it, for a multiple-chamber furnace port
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F24C-003/00
F27B-013/08
F27B-013/02
F27D-001/18
F27B-013/06
F27D-099/00
출원번호
US-0866275
(2009-02-05)
등록번호
US-8826900
(2014-09-09)
우선권정보
FR-08 50921 (2008-02-13)
국제출원번호
PCT/FR2009/050177
(2009-02-05)
§371/§102 date
20100805
(20100805)
국제공개번호
WO2009/101330
(2009-08-20)
발명자
/ 주소
Benharbon, Gérard
Mahieu, Pierre
출원인 / 주소
Solios Carbone
대리인 / 주소
Frost Brown Todd LLC
인용정보
피인용 횟수 :
0인용 특허 :
13
초록▼
The invention relates to the field of what are called multiple-chamber ring furnaces, for the baking of carbon blocks, and more particularly to a shutter (13) with inflatable seal (15), for sealing off a port (8) of a hollow partition (7) in a multiple-chamber ring furnace, characterized in that its
The invention relates to the field of what are called multiple-chamber ring furnaces, for the baking of carbon blocks, and more particularly to a shutter (13) with inflatable seal (15), for sealing off a port (8) of a hollow partition (7) in a multiple-chamber ring furnace, characterized in that its shutter comprises: a rigid core (14) of a substantially rectangular elongated shape, intended to be placed opposite a port (8) of a hollow partition (7) in said furnace, so as to shut off most of the flow area for gas entering via said port (8); and at least one inflatable air chamber (15), retracted in the deflated state in a housing of the core (14) and forming, in the inflated state, a peripheral seal (16) projecting around the perimeter of the core (15) such that said seal (16) extends around its entire periphery in order to complete the sealing off of said port (8).
대표청구항▼
1. A shutter with an inflatable seal, for a port of a hollow partition of a multi-chamber ring furnace, comprising: a rigid core of a substantially rectangular elongated shape, for placement next to a port of a hollow partition of said furnace in order to seal off the major portion of the flow area
1. A shutter with an inflatable seal, for a port of a hollow partition of a multi-chamber ring furnace, comprising: a rigid core of a substantially rectangular elongated shape, for placement next to a port of a hollow partition of said furnace in order to seal off the major portion of the flow area for the gas passing through said port; andat least one inflatable air chamber, which is retracted into a housing in the core in its deflated state, and which forms a peripheral seal protruding around the edge of the core in its inflated state, such that said seal extends along its entire periphery in order to complete the sealing off of said port wherein said core comprises two rigid plates, substantially of the same flat shape, rigidly fixed by spacers to be apart from and facing one another, and delimiting between said plates a housing which receives the inflatable air chamber and which is peripherally open between the two plates to allow the formation of the peripheral seal when said air chamber is in the inflated state. 2. A shutter according to claim 1, wherein said two plates of the core are fixed to each other in a manner which can be disassembled for replacement of a damaged air chamber. 3. A shutter according to claim 1, characterized in that said air chamber is made of a material that is substantially airtight and is resistant to heat and to the temperatures and corrosive properties of the combustion gases and fumes of the furnace, and is elastically deformable or is flexible. 4. A shutter according to claim 1, equipped with a device to retract the deflated air chamber into the core. 5. A shutter according to claim 4, wherein said device to retract the deflated air chamber into the core comprises at least one elastically deformable return member internal or external to the air chamber, which expands as the air chamber is inflated and which elastically retracts to a relaxed state as the air chamber is deflated, retracting said air chamber into said core. 6. A shutter according to claim 4, wherein said retraction device comprises a pantograph collapsing mechanism, arranged in the air chamber such that the inflation of said air chamber causes two shields connected to each other by at least one pantograph to move apart, and an opening of the pantograph loads at least one return spring which, when the air chamber deflates, is released and causes the pantograph to close and the air chamber to collapse into its housing in the core. 7. A shutter according to claim 1, equipped with a maneuvering shaft secured to the core, by a lower end portion of the shaft, said shaft having an upper end portion which is equipped with a guide and brace piece to facilitate positioning the shutter inside the hollow partitions of the furnace and bracing the shutter in place on said furnace. 8. A shutter according to claim 7, wherein said maneuvering shaft has a tubular portion and is equipped at one end of the tubular portion with a quick coupling connector for connecting to an inflation/deflation system with a compressed air supply, the other end of the tubular portion of the shaft being connected to the inside of the air chamber. 9. A shutter according to claim 7, equipped with a visual control device mounted on said shaft to monitor the inflation pressure of the air chamber. 10. A shutter according to claim 1, wherein said rigid core is arranged to allow bracing the shutter against the base of the corresponding port or between said base of the port and a spacer internal to the corresponding partition. 11. A sealing system for sealing off at least one port of a hollow partition of a multi-chamber ring furnace, comprising at least one shutter comprising a rigid core of a substantially rectangular elongated shape, for placement next to a port of a hollow partition of the furnace in order to seal off a major portion of a flow area for gas passing through the port, and at least one inflatable air chamber, which is retracted into a housing in said core in a deflated state of said air chamber, and which forms a peripheral seal protruding around an edge of said core in an inflated state of said air chamber, such that the seal extends along an entire periphery of said core in order to complete the sealing off of the port, the sealing system further comprising an air chamber inflation/deflation system, comprising a connector for connecting to a compressed air supply, and connected to a pressure regulator which is connected to an inflation/deflation selector valve connected on the one hand to the air chamber of said at least one shutter, for inflating said air chamber by means of a safety valve and an individual manual control of the inflation and deflation of said air chamber, and on the other hand to a discharge venturi, connected to said air chamber by said individual control and a pilot valve controlled by said selector valve, for selectively controlling the isolation of the venturi when the air chamber is inflated and the supply of compressed air to the venturi to permit said air chamber to deflate by suction wherein said core comprises two rigid plates, substantially of the same flat shape, rigidly fixed by spacers to be apart from and facing one another, and delimiting between said plates a housing which receives the inflatable air chamber and which is peripherally open between the two plates to allow the formation of the peripheral seal when said air chamber is in the inflated state. 12. A sealing system according to claim 11, for sealing off ports of hollow partitions of a chamber of said furnace, comprising a shutter respectively for each of the hollow partitions of said furnace chamber, the shutter being connected in parallel to the inflation/deflation selector valve and to the discharge venturi of an inflation/deflation system common to the air chambers of the shutters. 13. A sealing system according to claim 12, wherein said shutters are placed together on a common sealing platform, equipped with a respective supporting arm to support each shutter positioned outside the corresponding hollow partition, and with a connector to at least one of a compressed air distributor network and at least one air compressor such that the inflation/deflation system is supplied with air.
Dreyer Christian (Saint Jean de Maurienne FRX) Thomas Jean-Claude (Saint Germain en Laye FRX) Vanvoren Claude (Saint Jean de Maurienne FRX), Apparatus and process for optimizing combustion in chamber-type furnaces for baking carbonaceous blocks.
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