Provided are a tank recycling method and a tank recycling device that allow recycling of a tank in which a reinforcement layer is formed by way of a liner, which is an inner shell, being covered by carbon fiber reinforced plastic. The tank recycling method involves converting a portion of a matrix component into hydrocarbon gas by way of heating at least a reinforcement layer 12, converting the remaining portion into solid carbon, generating reclaimed carbon material, which is solid carbon adhering to the carbon fiber, and extracting the reclaimed carbon material. The tank recycling device comprises a frame 3 to stock tanks 1, and a carbonization pyrolysis furnace 4. The frame 3 comprises a plurality of post members 32 that are longer than the tank 1, and a beam member 34 that spans the post members 32 and latches to a suspension means 2 mounted to the tank 1. The carbonization pyrolysis furnace 4 comprises a carbonization pyrolysis chamber 41 that accommodates the frame 3 in which the tanks 1 are stocked.
B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
2.
Device for manufacturing recycled carbon fibers, and method for manufacturing recycled carbon fibers
The purpose of the present invention is to provide a manufacturing device and a manufacturing method that use carbon fiber reinforced plastic (CFRP) as a source material for the efficient, low-cost manufacture of recycled carbon fibers exhibiting excellent ease of handling. A device for manufacturing recycled carbon fibers is provided with: a dry distillation-carbonization furnace (101) having a box-shaped main body (105), a dry distillation-carbonization chamber (102) which accommodates CFRP (40), a combustion chamber (103) equipped with a burner (104), and a heating chamber (115) formed in the space between the main body (105) and the dry distillation-carbonization chamber (102); and a continuous furnace (26) that continuously heats the CFRP (25) after dry distillation and removes a portion of the fixed carbon. The device for manufacturing recycled carbon fibers of the present invention is characterized in that the dry distillation-carbonization furnace (101) is provided with a steam generator (105) and steam at a temperature of 100° C. or higher and 700° C. or lower is supplied to the dry distillation-carbonization chamber (102).
C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
B29B 17/02 - Separating plastics from other materials
C10B 47/06 - Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion with stationary charge in retorts
C10B 47/40 - Other processes in ovens with mechanical conveying means with endless conveying devices
C10B 47/46 - Other processes in ovens with mechanical conveying means with trucks, containers, or trays
C10B 53/07 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of synthetic polymeric materials, e.g. tyres
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
F27B 9/04 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
F27B 9/20 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
F27D 7/02 - Supplying steam, vapour, gases or liquids
B29K 105/06 - Condition, form or state of moulded material containing reinforcements, fillers or inserts
[Problem] To provide: an apparatus for manufacturing a regenerated carbon fiber having excellent handleability from a carbon fiber reinforced plastic (CFRP) as raw material; a process for manufacturing the regenerated carbon fiber; and a regenerated carbon fiber. [Solution] A carbon fiber manufacturing process (1) includes principally: a packing step (S3) for packing a heating cage (10) with a CFRP (25) in a prescribed bulk density; a heating cage conveying step (S5) for introducing the heating cage (10) into a regeneration treatment section (3) having a regeneration treatment space (2); a heating/removing step (S6) for heating the CFRP (25) in a heating/removing section provided in a heating zone and thereby removing the matrix components with a part thereof left as fixed carbon; and a cooling step (S7) for cooling the resulting regenerated carbon fiber (8) having fixed carbon adhering thereto. In the regenerated carbon fiber (8) manufactured by this manufacturing process with this manufacturing apparatus, the ratio of carbon remaining as fixed carbon is 0.5 to 11.0 wt%, said carbon being resulting from the matrix components of CFRP.
C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
[Problem] The purpose of the present invention is to provided a manufacturing method and a manufacturing device that use carbon fiber reinforced plastic (CFRP) as a source material for the efficient, low-cost manufacture of recycled carbon fibers exhibiting excellent ease of handling. [Solution] A device for manufacturing recycled carbon fibers is provided with: a dry distillation-carbonization furnace (101) having a box-shaped main body (105), a dry distillation-carbonization chamber (102) which accommodates CFRP (40), a combustion chamber (103) equipped with a burner (104), and a heating chamber (115) formed in the space between the main body (105) and the dry distillation-carbonization chamber (102); and a continuous furnace (26) that continuously heats the CFRP (25) that has been dry distilled and removes a portion of the fixed carbon. The device for manufacturing recycled carbon fibers is characterized by the provision of a vapor generator (105) to the dry distillation-carbonization furnace (101), and by the supply of steam at a temperature of 100°C-700°C to the dry distillation-carbonization chamber (102).
C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
patents
