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A Gripping Tool and A Method for Removing A Heat Exchanger Plate from A Furnace Wall
| Content Provider | The Lens |
|---|---|
| Description | La présente invention concerne un outil de préhension (1) pour retirer une plaque d'échangeur de chaleur d'une paroi de four, ledit outil de préhension comprenant une base (2) ayant des moyens de fixation mécanique (3) pour fixer de façon amovible à une extrémité d'outil d'une flèche, et un chariot d'ensemble de préhension (8) équipé d'au moins une fourche (4) s'étendant, lors de l'utilisation, de façon sensiblement horizontale depuis le chariot d'ensemble de préhension (8). Le chariot d'ensemble de préhension (8) comprend en outre un ensemble de serrage ayant un bras de serrage (6) équipé d'au moins un bloc de serrage (7), ledit bras de serrage (6) s'étendant sensiblement dans la direction de l'au moins une fourche (4) et est mobile vers et depuis l'au moins une fourche (4) pour serrer une plaque d'échangeur de chaleur (11) entre la fourche (4) et le bloc de serrage (7). L'invention concerne en outre un procédé de retrait d'une plaque d'échangeur de chaleur avec un tel outil de préhension (1). |
| Abstract | The present disclosure concerns a gripping tool (1) for removing a heat exchanger plate from a furnace wall, said gripping tool comprising a base (2) having mechanical attachment means (3) for releasably fixing to a tool end of a boom, and a gripping assembly carriage (8) equipped with at least a fork (4) extending, when in use, substantially horizontally from the gripping assembly carriage (8). The gripping assembly carriage (8) further comprises a clamp assembly having a clamp arm (6) equipped with at least a clamp pad (7), wherein said clamp arm (6) extends substantially in the direction of the at least one fork (4) and is movable towards and away from the at least one fork (4) for clamping a heat exchanger plate (11) between the fork (4) and the clamp pad (7). A method for removing a heat exchanger plate with such gripping tool (1) is also concerned. |
| Related Links | https://www.lens.org/lens/patent/013-701-986-211-596/frontpage |
| Language | English |
| Publisher Date | 2017-12-28 |
| Access Restriction | Open |
| Alternative Title | Outil De Préhension Et Procédé De Retrait D'une Plaque D'échangeur De Chaleur D'une Paroi De Four |
| Content Type | Text |
| Resource Type | Patent |
| Date Applied | 2016-06-23 |
| Agent | Boco Ip Oy Ab |
| Applicant | Outotec Finland Oy |
| Application No. | 2016050459 |
| Claim | CLAIMS A gripping tool (1 ) for removing a heat exchanger plate from a furnace wall, said gripping tool comprising: a base (2) having mechanical attachment means (3) for releasably fixing said gripping tool to a tool end of a boom of a mobile working equipment so as to be operated by the mobile working equipment, and a gripping assembly carriage (8) equipped with at least a fork (4) extending, when in use, substantially horizontally from the gripping assembly carriage (8), characterized in that the gripping assembly carriage (8) further comprises a clamp assembly having a clamp arm (6) equipped with at least a clamp pad (7), wherein said clamp arm (6) extends substantially in the direction of the at least one fork (4) and is movable towards and away from the at least one fork (4) for clamping a heat exchanger plate (1 1 ) between the fork (4) and the clamp pad (7). The gripping tool (1 ) according to Claim 1 , characterized in that a mast (5) is attached to the gripping assembly carriage (8), said mast (5) extending, when in use, substantially vertically, wherein the clamp arm (6) extends from the mast (5) substantially in the direction of the at least one fork (4) and is movable along the mast (5) towards and away from the at least one fork (4) for clamping a heat exchanger plate (1 1 ) between the at least one fork (4) and the at least one clamp pad (7). The gripping tool (1 ) according to Claim 1 or 2, characterized in that the gripping assembly carriage (8) comprises a pair of forks (4), each fork (4) being spaced apart from each other side by side The gripping tool (1 ) according to any of the preceding Claims, characterized in that the lateral position of the at least one fork (4) is adjustable by attaching the at least one fork (4) to the gripping assembly carriage (8) at different positions in a direction transverse to the at least one fork (4). The gripping tool (1 ) according to any of the preceding Claims, characterized in that the clamp arm (6) is equipped with a pair of clamp pads (7), each clamp pad (7) being spaced apart from each other side by side, preferably so as to correspond with the pair of forks (4). The gripping tool (1 ) according to Claim 5, characterized in that the distance between said pair of clamp pads (7) is adjustable. The gripping tool (1 ) according to any of the preceding Claim, characterized in that the gripping tool further comprises rotation means (9) for rotating, when in use, the gripping assembly carriage (8) about a common axis with respect to the base (2), said common axis being preferably parallel with the at least one fork (4) The gripping tool (1 ) according to Claim 6, characterized in that the rotation means (9) are arranged between the base (2) and the gripping assembly carriage (8). The gripping tool (1 ) according to any of the preceding Claim, characterized in that the gripping tool further comprises inclination means for inclining the gripping assembly carriage (8) such that the at least one fork (4) is movable, when in use, between a horizontal position and an inclined position in which the at least one fork (4) is at an angle with respect to the horizontal The gripping tool (1 ) according to any of the preceding Claim, characterized in that the at least one clamp pad (7), preferably each clamp pad (7), is equipped with a resilient clamp member. 1 1 . The gripping tool (1 ) according to any of the preceding Claim, characterized in that the at least one clamp pad (7), preferably each clamp pad (7), is equipped with a claw member (10) extending from the distal end of the clamp pad (7) towards the at least one fork (4) for preventing a heat exchanger plate (1 1 ) from being drawn from between the at least one fork (4) and clamp pad (7) when the heat exchanger plate (1 1 ) is pulled away from the furnace wal The gripping tool (1 ) according to any of the preceding Claims, characterized in that the gripping tool is hydraulically actuated and comprises power coupling means for hydraulically coupling the gripping tool with a hydraulic system of a mobile working equipment. A method for removing a heat exchanger plate (1 1 ) from a furnace wall during demolition of said furnace after its campaign life, said method comprising the steps of providing a mobile working equipment having a boom with a tool end, and characterized by the following steps of: providing a griping tool (1 ) according to any of the Claims 1 -12; attaching said gripping tool (1 ) mechanically with the tool end of the mobile working equipment, so as to be operated by the mobile working equipment; positioning the at least one clamp pad (7) and the at least one fork (4) of the gripping tool (1 ) at a distance from each other, said distance corresponding to at least a thickness of a heat exchanger plate (1 1 ) to be removed; inserting the gripping tool (1 ) into the furnace wall such that the at least one fork (4) is positioned below a heat exchanger plate (1 1 ) to be removed and the at least one clamp pad (7) is positioned above said heat exchanger plate (1 1 ) to be removed; moving the clamp pad (7) towards the fork (4) such that the heat exchanger plate to be removed (1 1 ) is clamped between the at least one fork (4) and the at least one clamp pad (7), and removing the heat exchanger plate (1 1 ) from the furnace wall by withdrawing the gripping tool (1 ) away from the furnace wal The method according to Claim 13, further comprising the step of: prior to inserting the gripping tool (1 ) into the furnace wall, aligning the gripping tool (1 ) with the heat exchanger plate 1 1 to be removed from the furnace wall by rotating the gripping assembly carriage (8), inclining the gripping assembly carriage (8), or both, so as position the at least one fork (4) parallel with the heat exchanger plate in the furnace wal |
| CPC Classification | DETAILS OR ACCESSORIES OF FURNACES; KILNS; OVENS; OR RETORTS; IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR; FOR FASTENING; CONNECTING; DISENGAGING OR HOLDING |
| Extended Family | 048-899-796-156-182 025-514-517-220-280 021-437-421-053-260 181-774-668-162-820 013-701-986-211-596 118-632-294-222-228 156-157-245-019-23X |
| Patent ID | 2017220848 |
| Inventor/Author | Coleman Ronald Hildebrandt Harold |
| IPC | F27D1/16 F27D25/00 |
| Status | Pending |
| Simple Family | 048-899-796-156-182 025-514-517-220-280 021-437-421-053-260 181-774-668-162-820 013-701-986-211-596 118-632-294-222-228 156-157-245-019-23X |
| CPC (with Group) | F27D1/1694 F27D25/001 F27D2001/0046 F27D1/00 B25B27/14 |
| Issuing Authority | United States Patent and Trademark Office (USPTO) |
| Kind | Patent Application Publication |
