WO2005061195A1 - Ptfeを含むテントシートを、再利用できる資材にするリサイクル方法 - Google Patents
Ptfeを含むテントシートを、再利用できる資材にするリサイクル方法 Download PDFInfo
- Publication number
- WO2005061195A1 WO2005061195A1 PCT/JP2004/019148 JP2004019148W WO2005061195A1 WO 2005061195 A1 WO2005061195 A1 WO 2005061195A1 JP 2004019148 W JP2004019148 W JP 2004019148W WO 2005061195 A1 WO2005061195 A1 WO 2005061195A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- tent
- sheet pieces
- pieces
- compensator
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
- B29B17/0042—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting for shaping parts, e.g. multilayered parts with at least one layer containing regenerated plastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/26—Scrap or recycled material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the present invention relates to a recycling method for converting a tent sheet containing PTFE (polytetrafluoroethylene) into a reusable material.
- PTFE polytetrafluoroethylene
- PTFE is widely used because it has lubricity, heat resistance, and chemical resistance, and is also used in tent sheets.
- Such a tent sheet is generally formed by coating a membrane substrate made of glass fiber or the like with P TFE.
- P TFE polytyrene resin
- Such a tent sheet coated with PTFE has water repellency, stain resistance and weather resistance, and has desirable properties as a building material.
- tent sheet coated with PTFE as described above is used in large areas for roofs of buildings, etc., the amount of tent sheets that must be disposed of at the time of demolition or reconstruction of the building is enormous. Become.
- the tent sheet containing PTFE as described above can be used as a reusable material, the problem of disposal of the tent sheet containing PTFE can be solved.
- the method according to the present invention is a recycling method for converting a tent sheet containing PTFE into a reusable material.
- the recycling method includes the steps of: cutting the tent sheet into a plurality of sheet pieces; and baking the plurality of sheet pieces together to obtain a reusable material.
- PT F E contained in the individual sheet pieces melts out, and materials which are mutually fused are obtained. Since these materials contain PT F Es, they are excellent in sliding characteristics etc. and can be used as sliding materials for bearings, piers, construction materials, etc. and non-lubricated bearings etc.
- the tent sheet may be shredded into a plurality of sheet pieces.
- the material can be formed into a desired shape by using a large number of sheet pieces obtained by finely cutting the tent sheet.
- the plurality of sheet pieces may be formed into a predetermined shape and fired.
- the plurality of sheet pieces can be formed to have a predetermined width and a predetermined thickness by passing holes of a predetermined shape.
- the sheet piece can be fired in a state of being formed into a predetermined shape, and a material of a predetermined shape can be obtained.
- the tent sheet In the process of cutting the tent sheet into a plurality of sheet pieces, the tent sheet may be cut into a plurality of sheet pieces of the same shape, and the plurality of sheet pieces may be collectively fired and reused. In the process of obtaining, a plurality of sheet pieces of the same shape may be stacked and fired.
- the plurality of sheet pieces may be put into a mold member of a predetermined shape and fired. If a plurality of sheet pieces are put into such a mold member and fired, they will be melted when fired. Since the PTFE can be prevented from flowing to the outside of the mold member, a material having a predetermined shape can be obtained.
- a mold member may be a container of a predetermined shape or a mold.
- a plurality of sheet pieces may be supplied to the inside of the container and may be fired, or a plurality of sheet pieces may be spread without gaps in a mold having a predetermined shape and then fired. Also, a plurality of sheet pieces may be stacked and fired inside a container or a mold.
- Such mold members may be of various shapes or sizes depending on the application of the material.
- the material may be formed, for example, in the form of a sheet, or may be formed in the form of chips or ingots.
- the sheet pieces may be compressed and fired at a predetermined pressure. In this way, the volume can be reduced by compressing a predetermined amount of the sheet piece. Also, this will increase the integrity of the materials.
- the recycling method of the present invention may further include the step of forming the material obtained by firing the plurality of sheet pieces together into a predetermined shape.
- FIG. 1 is a plan view of a recycling apparatus according to a first embodiment of the present invention.
- FIG. 2 is a side view of the recycling apparatus of the first embodiment of the present invention.
- FIG. 3 is a plan view of a recycling apparatus according to a second embodiment of the present invention.
- FIG. 4 is a side view of the recycling apparatus of the second embodiment of the present invention.
- FIG. 5 is a plan view of the recycling device of the third embodiment of the present invention.
- FIG. 6 is a side view of the recycling device of the third embodiment of the present invention.
- FIG. 7A is a plan view of a cutter according to a fourth embodiment of the present invention
- FIG. 7B is a side view of the cutter according to the fourth embodiment of the present invention.
- FIG. 8A is a plan view of a press according to a fourth embodiment of the present invention
- FIG. 8B is a side view of the press according to the fourth embodiment of the present invention.
- FIG. 1 is a plan view of the recycling apparatus 1 of the present embodiment.
- FIG. 2 is a side view of the recycling device 1 of the present embodiment.
- the recycling apparatus 1 is for making a tent sheet containing PTFE usable as a reusable material, and a cutting section for cutting the tent sheet A to be treated into a piece B of a predetermined size. 10, a compression-fired portion 11 for compressing a predetermined amount of sheet pieces under a predetermined pressure and firing the compressed sheet pieces C; and a forming portion 1 for forming the fired sheet pieces into a predetermined shape 1 2 and
- the cutting unit 10, the compression and firing unit 11, and the forming unit 12 are controlled by a recycling device control unit (not shown).
- the cutting unit 10 includes a first cutting machine 50, a compensator 51 for conveying a tent sheet A to be processed to the first cutting machine 50, a second cutting machine 52, and the second cutting machine.
- 5 2 A feed roller 5 3 for pressing and holding the sheet piece B to be cut by 2 and a compensator 5 4 for conveying the sheet piece B produced by being cut by the first cutter 50 to the feed roller 5 3
- a compensator 55 for conveying the sheet piece C, which has been shredded and generated by the second cutting machine 52, to a compression / baking unit 11 described later.
- the first cutter 50 is for cutting the tent sheet A finely in the width direction into a belt-shaped sheet piece B.
- the first cutter 50 has a cut sheet (not shown) extending in the width direction of the tent sheet A, and is provided adjacent to the downstream end of the conveyor belt of the compensator 51.
- the compensator 54 is located below the first cutter 50 and at a position where it can catch a piece B of a sheet which is cut by the first cutter 50 and dropped from the conveyor 51. It is installed in such a direction that the conveyance direction is orthogonal to the conveyance direction of the compensator 51. As a result, the longitudinal direction of the sheet piece B and the conveyance direction of the compensator 54 become substantially equal.
- the feed roller 53 is composed of upper and lower two rollers, and moves the sheet piece B conveyed by the compensator 54 while pressing it from both sides. The feed roller 53 is disposed adjacent to the downstream end of the conveyor belt of the compensator 54.
- the second cutting machine 52 cuts the sheet piece B in the width direction, and cuts the sheet piece B into chip-shaped sheet pieces C.
- the second cutting machine 52 is provided at a position where it can cut the sheet piece B fed from the feed roller 53.
- the compensator 55 is provided on the lower side of the second cutting machine 52 and at a position where it can receive the sheet piece C which is shredded and dropped by the second cutting machine 52, and the conveying direction thereof Are arranged substantially equal to the transport direction of the compensator 54.
- the compression and firing unit 11 includes a container 61 capable of containing a predetermined amount of sheet pieces C, a compander unit 62 for conveying the container 61, and a sheet piece C conveyed by the comparer 5 of the cutting unit 10.
- the hopper 63 is supplied with a predetermined amount of sheet pieces C into the container 61, and the press 64 for compressing the sheet pieces C in the container 61 and the container 61 are fired.
- the hopper 63 receives the sheet piece C which is conveyed by the compensator 55 and dropped from the downstream end of the conveyance belt, and supplies the sheet piece C into the container 61 by a predetermined amount. is there.
- the hopper 63 is a substantially conical tubular member, and both ends in the axial direction are openings 6 3 a and 6 3 b. Of the two openings 63a and 63b, the sheet C is received at the upper opening 63a side, and the sheet C is supplied into the container 61 from the lower opening 63b. It is supposed to An openable / closable lid (not shown) is attached to the lower opening 63 b so that the sheet piece C can be supplied into the container 61 by a predetermined amount.
- the container 61 is a rectangular parallelepiped cylindrical body, and has a side surface portion and a bottom surface portion 67.
- the bottom surface portion 67 is not integrally molded with the side surface portion, and is detachable from the side surface portion. That is, the lowermost end of the side surface portion is slightly extended toward the opposite side, and the bottom surface portion 67 can be hooked to the lowermost end of the side surface portion.
- a chuck pin 69 is attached to the upper end portion of the container 61.
- the chuck pin 69 is for fixing a lid plate 68 described later, and is attached to the top end of the side portion.
- a part of the chuck pin 69 is fixed to the side surface, and by operating this, it can be brought into the open or closed position, and the cover plate 6 is closed when it is closed. It is supposed to fix eight.
- the chuck pin 69 a in FIG. 2 indicates the chuck pin 69 in the open state
- the chuck pin 69 b indicates the chuck pin 69 in the closed state.
- the press 64 applies a predetermined pressure from the upper side of the container 61 to which the sheet piece C is supplied from the hopper 63.
- a lid plate whose peripheral edge is in contact with the inner peripheral surface of the container 61. 8 is inserted into the container 61, and a predetermined pressure is applied from the upper side of the lid plate 68 by a press 64.
- the pressure by the press 64 is set to 2 9 4 to 7 8 4 N / cm 2 .
- the baking furnace 65 is adapted to be able to accommodate a plurality of containers 61 to which a predetermined pressure has been applied by a press 64.
- firing is performed at 330 ° C. to 400 ° C.
- the pushing mechanism 66 is a material in the container 61 by pressing the bottom portion 67 from the bottom side of the container 61 while holding the side portion of the container 61 from the outside by the holding mechanism (not shown). It is what pushes D out of container 61.
- the container 61 is conveyed by the compander not shown on the compander portion 62, and by the compander portion 62, at a position where the sheet C can be supplied from the hopper 63 to the inside of the container 61. It is to be transported.
- the compander section 62 is intermittently positioned such that the container 61 can be pressed, the inside of the baking furnace 65, and the position where the material D baked by the extrusion mechanism 66 can be extruded. It is supposed to be transported to the
- the material D pushed out of the container 61 is conveyed to the forming unit 12 described later by the conveying means (not shown). Further, the cover plate 68 and the bottom portion 67 are collected by a plate collection means (not shown).
- the forming unit 12 is a plate-like material D having a predetermined thickness, which is produced by firing the sheet piece C. It has a cutter 70 for cutting into the body, a compensator 71 for transporting the material D, and a material gripping mechanism (not shown) for gripping the material D.
- the cutter 70 has a rotary knife having a cutting wedge in a plane perpendicular to the rotation axis.
- This rotary knife is an endless linear blade.
- the cutter 70 is provided at a position where it can cut one side surface of the material D being conveyed by the compensator 71, and the rotary knife is provided so as to be substantially parallel to the side surface of the compensator 71. ing.
- pre-processing for setting the size of a tent sheet to be processed is performed. That is, the tent sheet is cut so that the width can be cut by the first cutter 50.
- the tent sheet A cut in this manner is placed on the compensator 51.
- the tent sheet A placed on the competitor 51 is conveyed by the compensator 51 to the first cutter 50.
- the tent sheet A conveyed to the first cutter 50 is cut in the width direction.
- the sheet piece B cut in this manner is conveyed to the feed roller 53 by the compensator 54, and is sent to the second cutting machine 52 while both sides thereof are held down.
- the sheet piece B is cut in the width direction by the second cutting machine 52 and cut into chip-shaped sheet pieces C.
- the sheet piece C cut into chips is conveyed by the comparer 55, and is accumulated in the hopper 63 from the upper opening 63a.
- the sheet pieces C accumulated in the hopper 63 are supplied into the container 61 by a predetermined amount from the lower opening 63 b.
- an amount is provided to the extent that the sheet piece C does not spill out of the container 61.
- a cover plate supply unit (not shown) supplies the cover plate 68 into the container 61 from the upper side of the sheet piece C accumulated in the container 61. Subsequently, the lid feeding unit closes the chuck pin 69. Thus, the lid plate 68 is fixed to the container 61.
- the container 6 1 is It is transported by the compensator unit 62 directly below the press 64. Here, a predetermined pressure is applied to the container 61 from the upper side of the lid plate 68 by a press 64, and the sheet piece C in the container 61 is compressed.
- the container 61 to which a predetermined pressure is applied by the press 64 described above, is conveyed by the compensator unit 62 into the baking furnace 65 and baked.
- PT F E contained in the compressed individual sheet pieces C in the container 61 melts out to become the material D fused to each other. That is, a rectangular parallelepiped shaped material D in which the container 61 is a mold is generated. Since this material D contains PT F E, it is excellent in the slip characteristics etc., and can be used as sliding materials such as bearings, pedestals, building materials, etc., and non-lubricated bearing etc. In addition, since this material D is compressed by the press 64, the integrity is high.
- the fired container 61 is conveyed by the compensator unit 62 just above the pushing mechanism 66.
- the transported container 61 is gripped by a gripping mechanism (not shown) and the chuck pin 69 is opened.
- the bottom portion 67 is pushed from the bottom side of the container 61 by the pushing mechanism 66, and the material D is pushed out of the container 61.
- the grate plate 68 and the bottom portion 67 are recovered by a plate recovery means (not shown).
- the material D is formed into a predetermined shape and size by the cutter 70 of the forming unit 12.
- the material D extruded to the outside of the container 61 is placed on the compensator 71 by the transport means (not shown).
- the material D placed on the complier 71 is gripped by a material gripping mechanism (not shown) and moved by the cutter 70 to a position where it can be cut into a plate of a predetermined thickness.
- the material D is conveyed by the compensator 71 while being held by the material holding mechanism. At this time, one side of the material D is cut by the cutter 70 to generate a plate-like material having a predetermined thickness.
- material D is returned to the front of cutter 70 by rotating compensator 7 1 reversely. And again, as above Then, the material D is cut by the cutter 70.
- the material D is formed into a plurality of plate materials.
- the material D may be molded into another shape and size depending on the application, or may be used with being die-cut.
- the operations of the cutting unit 10, the compression firing unit 11, and the forming unit 12 of the recycling device 1 can be manually controlled by a recycling device control unit (not shown).
- FIG. 3 is a plan view of the recycling device 2 of the present embodiment.
- FIG. 4 is a side view of the recycling device 2 of the present embodiment.
- the recycling apparatus 2 is an apparatus for producing a sheet-like material E, not for producing the material D having a predetermined shape using the container 61 as a mold.
- the recycling device 2 is common to the recycling device 1 of the first embodiment in that it has a cutting unit 10 for finely cutting the tent sheet A to be treated into pieces C of a predetermined size. However, they differ in that they do not compress a predetermined amount of scale C. .
- the recycling apparatus 2 is configured to cut the tent sheet A to be processed into a piece C of a predetermined size, and a cutting portion 10, and the piece C of sheet are spread and packed in a predetermined formwork.
- the cutting unit 10, the firing unit 21 and the forming unit 22 are controlled by a recycling device control unit (not shown).
- the baking unit 21 collects the sheet pieces C conveyed by the upper compensator 81 and the compensator 55 of the cutting unit 10, and supplies a predetermined amount of sheet pieces C onto the upper competer 81.
- the stopper 83 is provided at a predetermined position with respect to the conveyance surface of the upper conveyor 81, and stops the sheet piece C supplied from the hopper 82 onto the upper compensator 81, and the upper (1) A sheet piece C falling onto the lower compensator 85 from above is made uniform to a predetermined width and a predetermined thickness.
- This stoma 83 has a gap 83 a for gradually discharging the crumpled sheet piece C.
- the gap 8 3 a has a predetermined width and a height substantially equal to the predetermined thickness.
- the lower compensator 85 is provided below the upper compensator 81 in parallel with the upper compensator 81 so that the conveyance direction is the same as the conveyance direction of the upper compensator 81.
- the length of the conveyor belt of the lower compensator 85 is approximately twice the length of the conveyor belt of the upper compensator 81, and approximately half of the lower competitor 85 is the conveying surface of the upper competitor 81 and It is provided to overlap in the vertical direction.
- the frame member 84 is used to form the sheet piece C into a predetermined shape by laying the sheet pieces C falling from the upper side of the upper cover 8 1 onto the lower side 8 5 5 It is a thing.
- the frame member 84 is a thin plate-shaped member in which an outer frame that surrounds the periphery is attached to a substantially square bottom plate.
- the inner width of the bottom plate is formed so as to be substantially equal to the width of the space 83a.
- the heater 86 has two planar surfaces 8 6 a and 8 6 b, and the frame member 84 is placed on one surface of the planar surface 8 6 a and in that state, the other surface By arranging the planar heater 86 b so as to face the upper surface of the frame member 84, the frame member 84 is fired from both sides.
- the forming portion 22 has a cutlet (not shown).
- the tent sheet A placed on the Compia 5 1 is cut by the first cutting machine 50 and the second cutting machine 52 to form a chip-like sheet. It is shredded into pieces c.
- the sheet piece C cut into chips as described above is conveyed by the compensator 55 and accumulated in the hopper 82.
- Sheet pieces C thus accumulated in the hopper 82 are supplied onto the upper conveyor 81 by a predetermined amount.
- the sheet piece C supplied onto the upper compensator 81 is conveyed to the inside of the stopper 83 and blocked, and is discharged to the outside of the gap 83a force ⁇ .
- the sheet piece C taken out is made uniform to a predetermined width and a predetermined thickness.
- the uniformed sheet piece C falls into the frame member 84 on the lower side 85, and is spread inside the frame member 84.
- the lower side conveyor 85 is stopped in a state where the frame member 84 is moved to just below the downstream end of the conveyor belt of the upper side conveyor 81, and the gap 8 between the stoppers 8 and 3.
- the sheet piece C is discharged from 3a, and when the sheet piece C falls from the upper side compensator 81, it operates at substantially the same speed as the upper side compensator 81.
- the sheet piece C is spread inside the frame member 84 on the lower side conveyor 85.
- the upper conveyor 81 stops and the supply of the sheet piece C onto the lower conveyor 85 is stopped.
- the frame member 84 in which the sheet pieces C are spread is cut along the upper edge of the outer frame of the frame member 84 by a not-shown cutting rod. Thereby, the sheet piece C in the frame member 84 is made uniform to a predetermined thickness.
- the frame member 84 is conveyed by the lower comparer 85 onto one of the planar heaters 8 6 a, and is fired by the heater 8 6.
- PT F E contained in the sheet piece C melts out from the sheet piece C, and a reusable sheet-like material E containing PT F E is generated.
- the sheet-like material E having a square shape can be obtained.
- the sheet piece C in the frame member 84 is made uniform to a predetermined thickness by a not-shown cutting rod, it is possible to obtain a sheet-like material E whose thickness is made uniform.
- the sheet-like material E generated in this manner is divided into six in the width direction and the length direction by a cutter not shown, and is formed into a smaller square material.
- the above sheet-like material E may be formed into another shape, or may be used as it is depending on the application.
- stopper 83 of the present embodiment is described as the above, any shape may be used as long as it forms a large number of sheet pieces C into a predetermined shape. .
- FIG. 5 is a plan view of the recycling device 3 of the present embodiment.
- FIG. 6 is a side view of the recycling device 3 of the present embodiment.
- the recycling device 3 is a device for producing the sheet-like material F, and the recycling device 2 of the second embodiment and the tent sheet A to be treated become a sheet piece C of a predetermined size. Cut pieces into 10 pieces, cut pieces of a predetermined amount of sheets, and pieces having a baking portion which does not compress piece C, and forming parts to form a sheet-like material generated by baking into a predetermined shape It is common in having, but differs in that it does not have the frame member 84. That is, they differ in the configuration of the fired part and the formed part.
- the recycling apparatus 3 for performing the recycling method of the present embodiment will be described.
- the recycling device 3 includes a cutting unit 10 for shredding a tent sheet A to be treated into a sheet piece C having a predetermined size, and baking for uniformizing and baking the sheet piece to a predetermined width.
- the baking unit 31 stacks the sheet pieces C conveyed by the upper conveyor 91 and the conveyor 55 of the cutting unit 10, and places a predetermined amount of sheet pieces C on the upper competer 91.
- the hopper 92 to be supplied and the plurality of sheet pieces C have a predetermined width and a predetermined thickness.
- the width and thickness of the upper cover 91 are equalized by the stoppers 93 and the lower stopper 94, and the lower cover 94 for receiving and conveying the sheet piece C dropped from above the upper compensator 91, and the lower And a heater 95 for firing the sheet piece C on the side cover 94.
- the stopper 93 clamps the sheet piece C supplied from the hopper 92 onto the upper compensator 91, and drops from the upper conveyor 91 to the lower conveyor 94. It is for equalizing the piece C to a predetermined width and a predetermined thickness, and is the same member as the stopper 83.
- the lower comparer 94 is provided at a position where it can receive the piece C of the sheet falling from the upper comparer 91, so that the conveyance direction is the same as the conveyance direction of the upper comparer 91.
- the lower side of the upper compensator 91 is provided in parallel.
- the heater 95 has two planar heaters 95 a and 95 b, and one planar heater 95 a is provided below the conveyor belt of the lower competitor 94.
- the other planar heater 95 b is provided at a position facing each other across the transfer belt.
- the sheet piece C on the lower compare 94 is fired from both sides by the heater 95.
- the forming unit 32 is cut by a first cutter unit 101, a second cutter unit 102, and a first cutter unit 101 for forming the material generated by firing into a predetermined shape. It has a competitor 103 for transporting the sheet-like material to the second cutter unit 102, and a competitor 104.
- the first cutter portion 101 has a plurality of cutters that cut at regular intervals in the longitudinal direction of the material generated by the firing by the heater 95.
- the cutter is positioned at both ends of the first cutter portion 101 so that both end portions in the width direction of the material are cut off.
- the compensator 103 conveys the portions other than the both ends cut off by the first cutter unit 101 to the second cutter unit 102.
- the second cutter unit 102 is for cutting the material conveyed by the compensator 103 in the width direction and forming the material into a sheet-like material F having a predetermined size.
- the second cutter portion 102 is substantially parallel to the width direction of the material conveyed by the compensator 103.
- the cutter 1 0 2 a is provided on the front side of the machine so that the material can be cut in the width direction by the cutter 1 0 2 a.
- the competitor 104 transports the material F to a collection box (not shown). Next, the operation of the recycling device 3 and the recycling method of the present invention implemented by the operation of the recycling device 3 will be described.
- the tent sheet A placed on the Compia 5 1 is cut by the first cutting machine 50 and the second cutting machine 52 and cut into chip-shaped sheet pieces C. Ru.
- the sheet piece C which has been shredded into chips is conveyed by the compensator 55 and accumulated in the hopper 92. Sheet pieces C collected in the hopper 92 are fed onto the upper compensator 91.
- the sheet piece C supplied onto the upper compensator 91 is conveyed to the stopper 93, and is allowed to pass through the gap 93a formed similarly to the gap 83a described in the second embodiment, It is made uniform to a predetermined width and a predetermined thickness.
- the sheet piece C thus homogenized falls onto the lower comparer 94, is transported by the lower comparer 94 to the oven 95, and is fired. By this firing, PT F E contained in the sheet piece C melts and a reusable material containing P T F E is produced.
- the material generated in this manner is led to the first cutter section 101, and cuts are made at regular intervals in the longitudinal direction, and both end portions in the width direction are cut off, and molding in the width direction is performed. To be done.
- the cut sheet-like material is guided by the compensator 103 to the second cutaway part 102, cut in the width direction, and formed into a sheet-like material F of a predetermined size.
- Ru the cutter 102a of the second cutaway part 1022 is a material that is conveyed to the second cutter unit 102 by the compensator 103, and is used to make the first cutaway part 1 0
- the cutting is performed at an interval such that the width is approximately the same as the width of the adjacent cutters 1, and a material F having a square shape is obtained.
- the material F is transported by the compensator 104 to a collection box not shown.
- the sheet-like material as described above may be formed into a predetermined shape according to the application.
- the recycling method in the present embodiment is performed using the recycling device 4 as shown in FIG. 7A, FIG. 7B, FIG. 8A and FIG. 8B.
- the recycling device 4 is common to the recycling device 2 of the second embodiment and the recycling device 3 of the third embodiment in that it is a device for generating a sheet-like material from the tent sheet A to be treated. However, it differs in that a sheet having the tent sheet A cut into a predetermined shape is used instead of using the sheet piece C obtained by finely cutting the tent sheet A. That is, the relatively easy-to-use non-defective part of the tent sheet to be recycled is not finely cut but is processed by the following recycling apparatus 4, and the other parts are finely cut by the above-mentioned recycling apparatuses 1 to 3. It may be processed from.
- the recycling device 4 has a cutter 11 1 1 for cutting a tent sheet A to be treated into sheet material of a predetermined size, and a press 1 21 1.
- FIG. 7A and 7B show the cutting machine 1 1 1 of this embodiment
- FIG. 7 A is a plan view of the cutting machine 1 1 1
- FIG. 7 B is a side view of the cutting machine 1 1 1 It is.
- the cutter 1 1 1 has a compensator 1 1 2 for conveying the tent sheet A, and a cutter 1 1 3.
- Katyu portion 1 1 3 is provided with two cutters, and both sides of the tent sheet A in the transport direction are cut by passing the tent sheet A to be processed through the cutter portion 1 1 3 It is supposed to be.
- FIG. 8A and 8B show the press 1 21 of this embodiment
- FIG. 8A is a plan view of the press 1 21
- FIG. 8B is a side view of the press 1 21.
- FIG. 8A is a plan view of the press 1 21
- FIG. 8B is a side view of the press 1 21.
- This press machine 21 has an upper side press portion 121a and a lower side press portion 12 lb, and the object to be treated is sandwiched between the two planar press portions to be heated. It is intended to be compressed.
- a heating device is built in the inside of the press machine 21 1.
- a plurality of sheet materials molded into a predetermined shape by the cutting machine 11 1 are laminated inside the formwork 130, and this is heat compression molded by the press machine 12 1. ing.
- This formwork 130 is a cylindrical body whose cross section is substantially the same as the sheet material.
- the operation of the recycling device 4 and the recycling method of the present invention implemented by the operation of the recycling device 4 will be described below.
- pre-processing for setting the size of the processing target sheet A to a predetermined size is performed. That is, the tent sheet A is cut so as to have a size that can be cut by the cutting machine 11 1. The tent sheet A cut in this way is placed on the competitor 1 1 2 of the cutter 1 1 1.
- the tent sheet A placed on the compensator 112 is conveyed to the cutter unit 113, and both sides in the conveying direction are cut.
- the compensator 112 is rotated in the reverse direction, and both sides of the tent sheet A in the transport direction are cut by the cutter section 113. I do.
- the tent sheet A is cut into a substantially square sheet material of a predetermined size.
- the plurality of sheet materials cut into the same shape are stacked inside the formwork 130 and placed on the lower-side press portion 121 b.
- the upper planar press unit 121a is pressed against the lower lateral press unit 121b with a predetermined pressure, so that a reusable sheet-like material can be used as in the above-described embodiment. It is generated.
- the sheet material since the sheet material is put into the inside of the mold 130 and subjected to press-firing, the flow of the melted PTFE to the outside of the mold 130 can be prevented during press-firing.
- a sheet-like material having a square shape can be obtained.
- the sheet-like material as described above may be formed into a predetermined shape according to the application.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-423032 | 2003-12-19 | ||
JP2003423032A JP4685345B2 (ja) | 2003-12-19 | 2003-12-19 | Ptfeを含むテントシートを、再利用できる資材にするリサイクル方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005061195A1 true WO2005061195A1 (ja) | 2005-07-07 |
Family
ID=34708750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/019148 WO2005061195A1 (ja) | 2003-12-19 | 2004-12-15 | Ptfeを含むテントシートを、再利用できる資材にするリサイクル方法 |
Country Status (2)
Country | Link |
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JP (1) | JP4685345B2 (ja) |
WO (1) | WO2005061195A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019054856A1 (en) * | 2017-09-13 | 2019-03-21 | Better Future Factory B.V. | PROCESS FOR TRANSFORMING A THERMOPLASTIC TO A MONOLITHIC ELEMENT SUCH AS A TILE, A CONTAINER AND A COMBINATION OF AN OVEN, MEANS OF TRANSPORT AND CONTAINER |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09123295A (ja) * | 1995-11-02 | 1997-05-13 | Chuo Container Service Kk | 使用済み布帛より再生した繊維強化プラスチック及びその製造方法 |
JP2001058366A (ja) * | 1999-06-15 | 2001-03-06 | Toray Ind Inc | シート状物およびそのリサイクル法 |
JP2003073973A (ja) * | 2001-08-31 | 2003-03-12 | Hiraoka & Co Ltd | 防水・不燃性膜材 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63218319A (ja) * | 1987-03-06 | 1988-09-12 | Mikuni Jukogyo Kk | 充填材入りふつ素樹脂廃材の再生法 |
NL8901198A (nl) * | 1989-05-12 | 1990-12-03 | Pwr Recycling Bv | Werkwijze en inrichting voor het tot blokken samendrukken van kunststof afval, zoals verbruikt verpakkingsfolie van polyvinylchloride, ethyleen en dergelijke, waarbij het afval in een houder wordt gebracht en daarin met een stempel wordt samengedrukt. |
JP5054256B2 (ja) * | 2000-07-24 | 2012-10-24 | ダイキン工業株式会社 | 再生フッ素樹脂の製造方法及びフッ素樹脂再生品 |
-
2003
- 2003-12-19 JP JP2003423032A patent/JP4685345B2/ja not_active Expired - Fee Related
-
2004
- 2004-12-15 WO PCT/JP2004/019148 patent/WO2005061195A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09123295A (ja) * | 1995-11-02 | 1997-05-13 | Chuo Container Service Kk | 使用済み布帛より再生した繊維強化プラスチック及びその製造方法 |
JP2001058366A (ja) * | 1999-06-15 | 2001-03-06 | Toray Ind Inc | シート状物およびそのリサイクル法 |
JP2003073973A (ja) * | 2001-08-31 | 2003-03-12 | Hiraoka & Co Ltd | 防水・不燃性膜材 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019054856A1 (en) * | 2017-09-13 | 2019-03-21 | Better Future Factory B.V. | PROCESS FOR TRANSFORMING A THERMOPLASTIC TO A MONOLITHIC ELEMENT SUCH AS A TILE, A CONTAINER AND A COMBINATION OF AN OVEN, MEANS OF TRANSPORT AND CONTAINER |
Also Published As
Publication number | Publication date |
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JP2005178192A (ja) | 2005-07-07 |
JP4685345B2 (ja) | 2011-05-18 |
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