EP0154713A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Calcining method and enclosure structure therefor
Assignee: Italimpianti SpA
•
Filing: 1984-12-19
•
Granted: —
•
Expires: 2004-12-19
Abstract
Abstract Method for calcining carbonaceous blocks into carbonaceous bodies, in which either a continuous or intermittent operation furnace is used. After placing carbonaceous blocks to be calcined onto the loading platform of a cart, a containment structure or enclosure structure is formed around the carbonaceous blocks including a barrier, which is held away from and is adapted to completely enclose the carbonaceous blocks, with the optional exception of barrier formed on the surface of the loading platform on which the carbonaceous blocks rest. The barrier being effective to prevent seepage of air or gases therethrough during calcination. The containment or enclosure structure for implementing the method comprises a conventional cart (4) for continuous and intermittent operation furnaces overlaid by a stacked arrangement including two side-by-side walls (6,6') of refractory material wherebetween a barrier (7) of carbonaceous powder is interposed, and a cover (8), including two slabs also formed from refractory material and arranged in two layers (18) wherebetween a further barrier of carbonaceous powder is provided. An additional barrier (5) of carbonaceous powder may be optionally provided on the loading platform (3) of the cart (4).
Inventors
- 👤 Renzo Corato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 10:08
CPC Classifications
F; F27; F27D; F27D5/00; F27D5/0062; C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532; F27B; F27B17/00; F27B17/0016; F27B17/0033; F27B9/00; F27B9/06; F27B9/08; F27B9/082; F27B9/088; F27B9/14; F27B9/20; F27B9/26; F27B9/262; F27D1/00; F27M; F27M2001/00; F27M2001/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
197 words
A method for calcining carbonaceous blocks into carbonaceous bodies, in particular anodes, in continuously or intermittently operating furnaces, wherein the carbonaceous blocks before the introduction into the furnace are enclosed into an enclosure, are then introduced into the furnace, are calcined in the furnace and after extraction from the furnace the calcined carbonaceous body is removed from the enclosure, characterized in that one or more carbonaceous blocks, before the introduction into the furnace are inserted into an enclosure structure of stable shape having internal surface walls and at least one opening through which the carbonaceous blocks are inserted therein, said blocks are arranged within said enclosure at a distance from at least a prevailing part of said internal surface of said walls to provide an interspace therebetween, the opening of said enclosure structure is closed, the enclosure structure, with the blocks therein are introduced into the furnace, the enclosure structure with the blocks to be calcined therein are left within the furnace for a time period and temperature required for the calcination of said blocks into carbonaceous bodies, the thus treated enclosure structure is extracted from the furnace, then opened and the calcined carbonaceous bodies extracted therefrom.
Claim 2
Independent Claim
197 words
A method for calcining carbonaceous blocks into carbonaceous bodies, in particular anodes, in continuously or intermittently operating furnaces, wherein the carbonaceous blocks before the introduction into the furnace are enclosed into an enclosure, are then introduced into the furnace, are calcined in the furnace and after extraction from the furnace the calcined carbonaceous body is removed from the enclosure, characterized in that one or more carbonaceous blocks, before the introduction into the furnace are inserted into an enclosure structure of stable shape having internal surface walls and at least one opening through which the carbonaceous blocks are inserted therein, said blocks are arranged within said enclosure at a distance from at least a prevailing part of said internal surface of said walls to provide an interspace therebetween, the opening of said enclosure structure is closed, the enclosure structure, with the blocks therein are introduced into the furnace, the enclosure structure with the blocks to be calcined therein are left within the furnace for a time period and temperature required for the calcination of said blocks into carbonaceous bodies, the thus treated enclosure structure is extracted from the furnace, then opened and the calcined carbonaceous bodies extracted therefrom.
Claim 3
Dependent Claim
36 words
A method according to claim 1, wherein, before the introduction into the furnace the carbonaceous blocks are inserted into an enclosure structure of stable shape associated with a cart adapted to be shifted into said furnace.
Claim 4
Independent Claim
54 words
A method according to claims 1,2, wherein, before the introduction into the furnace,the carbonaceous blocks are inserted into an enclosure structure of stable shape and having a protective layer extending over the entire or at least a substantial portion thereof surrounding said blocks therein to provide a barrier substantially preventing passage of gases therethrough.
Claim 5
Independent Claim
55 words
A method according to claims 1-3, wherein, before the introduction into the furnace, the carbonaceous blocks are inserted into an enclosure structure made of refractory material of stable shape and having a protective layer of powder material, preferably of carbonaceous powder extending over the entire or at least a substantial part thereof surrounding said blockso
Claim 6
Independent Claim
69 words
A method according to claims 1-4, wherein, before the introduction into the furnace, the carbonaceous blocks are inserted into an enclosure structure of stable shape made of refractory material having at least in part double walled portions or hollow refractory elements the hollow spaces whereof are filled with said powder material, preferably carbonaceous powder to provide a barrier substantially surrounding said blocks and substantially preventing passage of gases therethrough.
Claim 7
Dependent Claim
74 words
An enclosure structure for containing therein carbonaceous blocks (2) to be calcined into carbonaceous bodies within continuous or intermittent operation furnaces (1), characterized in that the structure comprises side walls (6,6 1 ) and a removable cover (8) forming jointly a protective barrier (7,18) for the carbonaceous blocks to be calcined, into carbonaceous bodies, and a loading platform (3) on which said side walls (6,6 1 ) and said removable cover (8) are placed.
Claim 8
Dependent Claim
74 words
An enclosure structure for containing therein carbonaceous blocks (2) to be calcined into carbonaceous bodies within continuous or intermittent operation furnaces (1), characterized in that the structure comprises side walls (6,6 1 ) and a removable cover (8) forming jointly a protective barrier (7,18) for the carbonaceous blocks to be calcined, into carbonaceous bodies, and a loading platform (3) on which said side walls (6,6 1 ) and said removable cover (8) are placed.
Claim 9
Dependent Claim
31 words
A structure according to claim 6, wherein said side walls (6,6') and cover (8) are formed as two refractory material layers between which powder material, preferably carbonaceous powder (7,18) is interposed.
Claim 10
Dependent Claim
55 words
A structure according to claims 6,7, wherein said loading platform comprises a refractory material layer (3) and overlying layer (5) of carbonaceous powder whereon the carbonaceous bodies (2) to be calcined are placed, and wherein said side walls (6,6') comprise a single series of hollow refractory bricks inside which the carbonaceous powder (7) is introduced.
Claim 11
Dependent Claim
52 words
A structure according to claims 6-8, wherein said side walls (6,6') comprise refractory material slabs (13) inserted in grooved uprights (15) also formed from refractory material, said grooved uprights having optionally a monolythic shape or are constructed from preferably hollow superimposed elements (16), into the interiors whereof carbonaceous powder (7) is introduced.
Claim 12
Dependent Claim
26 words
An enclosure structure according to claims 6-9, further comprising a base frame (9) mounted on wheels (10), whereon a sole (3) forming the loading surface rests.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.