CN102764753A - Vertical continuous aluminum-plastic composite packaging material separating system capable of recovering separating agent - Google Patents
Vertical continuous aluminum-plastic composite packaging material separating system capable of recovering separating agent Download PDFInfo
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- CN102764753A CN102764753A CN2012102596706A CN201210259670A CN102764753A CN 102764753 A CN102764753 A CN 102764753A CN 2012102596706 A CN2012102596706 A CN 2012102596706A CN 201210259670 A CN201210259670 A CN 201210259670A CN 102764753 A CN102764753 A CN 102764753A
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Abstract
The invention provides a vertical continuous aluminum-plastic composite packaging material separating system capable of recovering a separating agent. The system comprises a separating reaction device for performing chemical separating treatment to the aluminum-plastic composite packaging materials, and a vertical separating and spin drying device for performing physical separating treatment to the chemically separated aluminum-plastic composite packaging materials, wherein a reaction screw and a discharge screw arranged in the separating reaction device both are shaft-less screw structures; an inner cylinder of the vertical separating and spin drying device is provided with a rotating shaft, and the rotating shaft is discontinuously provided with a plurality of sickle blades; and the vertical separating and spin drying device is connected with a sedimenting centrifuge which is connected with a separating agent buffer pool. With the adoption of the aluminum-plastic composite packaging material vertical continuous separating system capable of recovering separating agent, the continuous separating treatment of aluminum-plastic composite packaging materials is realized effectively, and the system has high aluminum-plastic separating property.
Description
Technical field
The invention belongs to the feed separation technology, particularly relate to a kind of vertical continuous piece-rate system of aluminium plastic composite packaging material that release agent reclaims that has that can carry out the continuous separating treatment of industrialization to aluminium plastic composite packaging material.
Background technology
The paper plastic-aluminum composite packing material is a kind of common packaging material, is widely used in the packings such as milk and soft drink.The raising of Along with people's environmental consciousness and lack of raw materials; It is very necessary that the regeneration of paper plastic combined package becomes; When paper plastic combined package is carried out regeneration, normally, the more remaining material that is formed by aluminium foil and plastics is separated again after the paper substrate separation wherein.
Wherein, the regenerative use technology of paper plastic-aluminum composite packing waste mainly comprises two types, and one type is direct regeneration techniques, soon the new raw material of regeneration after the whole break process of paper plastic-aluminum composite packing; Another kind of is the separation regeneration technology, is about to recycle respectively after three kinds of material separation in the paper plastic-aluminum composite packing.The relative separation regeneration techniques, directly mainly extrusion molding is moulded wood to regeneration techniques and color happy plate is main to produce, and it can't reclaim paper pulp, plastics and aluminium effectively, does not embody the self-value of paper fiber, aluminium foil and plastics.
The separation regeneration technology can be divided into two parts according to its separation process, at first is paper and the separating of plastic-aluminum, i.e. the paper pulp isolation technics; Next is separating of aluminium foil and plastics, i.e. plastic-aluminum isolation technics.Paper separates with plastic-aluminum, and the method through hydraulic pulping can realize that the present comparative maturity of this technology is used more extensive.Removed the aluminium plastic composite packaging material behind the paper pulp aluminium foil and plastics separate key and the difficult point that is the separation regeneration technology.
At present; When the aluminium plastic composite packaging material that aluminium foil and plastics are compounded to form separates; Usually adopt the wet separation technology, be about to aluminium plastic composite packaging material and be soaked in the release agent, thereby the cohesive force that destroys between each layer through dissolving or swelling action makes aluminium, moulds separately; Realize the Chemical Decomposition of plastic-aluminum, this process also can be described as the Chemical Decomposition reaction of plastic-aluminum; And then dry, physical separation that separation etc. realizes plastic-aluminum.For this reason; Prior art has proposed the continuous piece-rate system of a kind of realization aluminium plastic composite packaging material, comprises soaking separator, centrigugal swing dryer and cylinder centrifugal dressing machine, wherein; Be provided with a spiral in the immersion separator and transmitted material; Its separation process may further comprise the steps: (1) is loaded with the aluminium plastic composite packaging material input in this immersion separator of release agent, and process is carried out Chemical Decomposition, and through there being a spiral to transfer to centrigugal swing dryer; (2) centrigugal swing dryer can dry processing with the chemically separated material of the process of sending into, and removes release agent wherein, and the material after drying is sent to centrifugal dressing machine;
(3) centrifugal dressing machine utilizes under the center rotor effect of high speed rotating, aluminium foil is separated with plastics, and be expelled to plastic granulator and eddy current sorter respectively, and the eddy current sorter can be connected with the aluminium smelting apparatus and obtains aluminium.
But; In the existing continuous piece-rate system; Employing has a spiral to carry out in the immersion separator of material transmission, because a restriction of spiral self structure is arranged, what cause having a screw diameter and length all can not do is excessive; Thereby big limitations the separating treatment ability of separator to material, make that the material disposal ability of entire separation system is relatively poor; And there is the pliability of a spiral relatively poor, material takes place easily stop up, influence the feed separation treatment effect of entire separation system; In addition, in the existing piece-rate system, the release agent that screen centrifuge grades in the physical separating process is discharged as waste water usually, causes release agent to be wasted, and the utilization rate of release agent is not high, and the release agent consumption is big.Generally, existing continuous separation technology is difficult for realizing aluminium plastic composite packaging material is carried out industrialized extensive separating treatment continuously.
Summary of the invention
The present invention provides a kind of vertical continuous piece-rate system of aluminium plastic composite packaging material that release agent reclaims that has; Can overcome the material disposal ability difference of existing piece-rate system existence and the defective that material stops up, cost for wastewater treatment is high takes place easily; Can effectively improve the material disposal ability, reduce the generation of waste water.
The present invention provides a kind of vertical continuous piece-rate system of aluminium plastic composite packaging material that release agent reclaims that has; Comprise aluminium plastic composite packaging material is carried out the separating reaction device that Chemical Decomposition is handled; And to carry out the vertical separation drying device of physical separation processes through the aluminium plastic composite packaging material after the Chemical Decomposition, wherein:
Said separating reaction device comprises the separator with cavity, and interior reaction spiral and the discharging spiral of cavity that is arranged on said separator;
Said separator comprises conversion zone and discharging section, and the feed end away from said discharging section on the said conversion zone is provided with charging aperture, and the discharge end away from said conversion zone on the said discharging section is provided with discharging opening, and the height of said discharge end is higher than the height of feed end;
Said reaction spiral is arranged in the cavity of said conversion zone, and said discharging spiral is arranged in the cavity of said discharging section, and the said relatively reaction spiral of said discharging spiral vertically is provided with;
Said reaction spiral and discharging spiral are does not have the axle helical structure, and said discharging spiral is respectively arranged with motor with an end of reaction spiral;
Said vertical separation dries device and comprises:
Vertically disposed cylindrical shell; Said cylindrical shell comprises inner barrel and the outer cylinder body that the gap is provided with; The barrel of said inner barrel is provided with sieve aperture; And the lower end of said cylindrical shell is provided with feeding warehouse, and said feeding warehouse place is provided with first charging aperture, and said first charging aperture is connected with discharging opening on the said separating reaction device;
Position near the lower end of said cylindrical shell on the said outer cylinder body offers first discharge gate; Position near the upper end of said cylindrical shell on the said cylindrical shell offers second discharge gate that runs through said outer cylinder body and inner barrel; Said first discharge gate is used for discharging through aluminium foil after the physical separation processes and release agent mixture, and said second discharge gate is used for discharging through the plastics after the physical separation processes;
Be provided with rotating shaft in the said inner barrel, be interrupted being provided with a plurality of sickle blades in the said rotating shaft, and the shape distribution in the shape of a spiral of said a plurality of sickle blade; Said feeding warehouse is goed deep in the lower end of said rotating shaft, and the shaft branch that gos deep into said feeding warehouse in the said rotating shaft is provided with endless spiral; The upper end of said cylindrical shell is provided with the motor that is connected with said rotating shaft;
Said system also comprises: sedimentation centrifuge and release agent Buffer Pool; The charging aperture of said sedimentation centrifuge is connected with said vertical first discharge gate that dries device that separates, and is used for aluminium foil and release agent mixture that said vertical separation drying device is discharged are carried out separating treatment;
Said release agent Buffer Pool is connected with the liquid phase outlet of said sedimentation centrifuge, be used to store the release agent that said sedimentation centrifuge is discharged, and said separation buffer pond is connected to the charging aperture of said separating reaction device through liquid pump and pipeline.
The vertical continuous piece-rate system of aluminium plastic composite packaging material with release agent recovery provided by the invention; Handle through adopting the separating reaction device that does not have the axle spiral that aluminium plastic composite packaging material is carried out Chemical Decomposition; And dry device to drying and separating treatment through chemically separated aluminium plastic composite packaging material through the vertical separation that is provided with the sickle blade; Can effectively improve aluminium plastic composite packaging material separating treatment ability; In to the aluminium plastic composite packaging material processing procedure, can effectively avoid the material blocking problem, reduce the generation of waste water; Simultaneously,, can effectively the release agent in the separating treatment be recycled, reduce the consumption of release agent through separation buffer pond and liquid pump are set.Piece-rate system provided by the invention has stronger material disposal ability, can reduce the consumption of release agent simultaneously, has industrial applicibility preferably, is convenient to the promotion and application of piece-rate system.
Description of drawings
The structural representation that Fig. 1 provides for the embodiment of the invention with vertical continuous piece-rate system of aluminium plastic composite packaging material that release agent reclaims;
Fig. 2 A is the structural representation of separating reaction device among Fig. 1;
Fig. 2 B be among Fig. 2 A A-A to cutaway view;
Fig. 2 C be among Fig. 2 A B-B to cutaway view;
Fig. 3 A is the structural representation that vertical separation dries device among Fig. 1;
Fig. 3 B is the local enlarged diagram at A place among Fig. 3 A;
Fig. 3 C is the cross section enlarged diagram of Fig. 3 A shaft and sickle blade;
Fig. 4 is the concrete structural representation of using of the embodiment of the invention.
The specific embodiment
Relatively poor in view of the feed separation disposal ability that the prior art piece-rate system exists, be easy to generate material and stop up and the big problem of waste water generation; The present invention provides a kind of vertical continuous piece-rate system of aluminium plastic composite packaging material that release agent reclaims that has; Through adopting the separating reaction device that does not have the axle helical structure; And adopt and can dry device to drying through the aluminium plastic composite packaging material after the Chemical Decomposition with vertical separation of separating treatment simultaneously, can effectively improve the continuity that aluminium plastic composite packaging material is handled, reduce the loss of release agent and aluminium bits; Reduce the generation of waste water, improve aluminium plastic composite packaging material separating treatment ability; Simultaneously,, can recycle, improve the utilization rate of release agent, reduce the consumption of release agent the release agent in the physical separation processes process through release agent Buffer Pool and liquid pump are set.To do detailed explanation to technical scheme of the present invention with instantiation below.
The structural representation that Fig. 1 provides for the embodiment of the invention with vertical continuous piece-rate system of aluminium plastic composite packaging material that release agent reclaims; Fig. 2 A is the structural representation of separating reaction device among Fig. 1; Fig. 2 B be among Fig. 2 A A-A to cutaway view; Fig. 2 C be among Fig. 2 A B-B to cutaway view; Fig. 3 A is the structural representation that vertical separation dries device among Fig. 1; Fig. 3 B is the local enlarged diagram at A place among Fig. 3 A; Fig. 3 C is the cross section enlarged diagram of Fig. 3 A shaft and sickle blade.As shown in Figure 1; The present embodiment piece-rate system comprises that separating reaction device 10, vertical separation dry device 20 and sedimentation centrifuge 30; Wherein, Separating reaction device 10 is used for that aluminium plastic composite packaging material is carried out Chemical Decomposition to be handled, and can aluminium plastic composite packaging material be immersed in to carry out the Chemical Decomposition reaction in the release agent, with wherein aluminium, mould separation; Vertical separation dries device 20 and can be used for the chemically separated aluminium plastic composite packaging material after handling through separating reaction device 10 is dried and physical separation processes, with aluminium foil and plastics physical separation wherein, simultaneously plastics is carried out depickling and handles; The plastics that dry device 20 discharges from vertical separation can directly be processed plastic product; The aluminium foil and the release agent of discharging can get into sedimentation centrifuge 30; Sedimentation centrifuge 30 can carry out centrifugal treating to aluminium foil and release agent, and with the aluminium foil depickling, the aluminium foil after the depickling can be discharged from the solid phase outlet; Release agent can be discharged from the liquid phase outlet, and enters into the release agent Buffer Pool 801 that is connected with the liquid phase outlet of sedimentation centrifuge 30; Simultaneously, can the release agent in the release agent Buffer Pool 801 be drawn back to separating reaction device 10 through liquid pump 802, so that release agent is utilized again.
For ease of understanding, will describe with the vertical drying device 20 that separates the separating reaction device 10 in the present embodiment respectively below embodiment of the invention technical scheme.
In the present embodiment; Shown in Fig. 2 A-Fig. 2 C; Separating reaction device 10 specifically can comprise separator 101, reaction spiral 102 and discharging spiral 103, and wherein, this separator 101 has the cavity of hollow; And this separator 101 comprises conversion zone 1011 and discharging section 1012; Feed end A1 place away from discharging section 1012 on the conversion zone 1011 is provided with charging aperture 10111, and the discharge end A2 place away from conversion zone 1011 on the discharging section 1012 is provided with discharging opening 10121 (asking for an interview shown in Fig. 2 C), and the height of this discharge end A2 is higher than the height of feed end A1; Reaction spiral 102 is arranged in the cavity of conversion zone 1011, and discharging spiral 103 is arranged in the cavity of discharging section 1012, and discharging spiral 103 relative response spirals 102 vertically are provided with; Reaction spiral 102 is the no axle helical structure shown in Fig. 2 A with discharging spiral 103, is installed in the two ends of conversion zone 1011 and discharging section 1012 respectively, and its concrete mounting structure is similar with the installation that tradition does not have the axle helical structure, repeats no more at this; Discharging spiral 103 is respectively arranged with the motor 104 that drives the helical structure rotary work with an end of reaction spiral 102.In the present embodiment; Can be full of release agent in the cavity of the conversion zone 1011 of separating reaction device 10; Handle aluminium plastic composite packaging material is carried out Chemical Decomposition, particularly, reaction spiral 102 capable of using rotatablely moving in conversion zone; To be sent to discharging spiral 103 from the aluminium plastic composite packaging material that charging aperture 10111 drops into; In this transport process, carry out Chemical Decomposition under the release agent effect that aluminium plastic composite packaging material can be full of in conversion zone 1011, the aluminium plastic composite packaging material after handling through Chemical Decomposition can be discharged by discharging opening 10121 through discharging spiral 103.
In the present embodiment, when aluminium plastic composite packaging material was carried out separating treatment, can in the conversion zone 1011 of separator 101, be full of in advance had release agent; Separate and, can continuously put into the separator 101 through paper substrate from the charging aperture 10111 of conversion zone 1011 without the full wafer aluminium plastic composite packaging material of fragmentation; The full wafer aluminium plastic composite packaging material of putting in the separator 101 can be in conversion zone 1011; Rotation with reaction spiral 102; On one side to the discharge end of conversion zone 1011 promptly near an end motion of discharging spiral 103; On one side with conversion zone 1011 in release agents carry out the Chemical Decomposition reaction, and release agent does not move with aluminium plastic composite packaging material and is present in all the time in the conversion zone 1011; Through the aluminium plastic composite packaging material after the Chemical Decomposition; After entering into discharging section 1012; Can move to the discharging opening that is arranged on discharging section 1012 ends 10121 with the rotation of the discharging spiral 103 that is provided with in the discharging section 1012, and discharge from discharging opening 10121; Meanwhile, the release agent carried secretly of aluminium plastic composite packaging material is in the gap flow back into conversion zone 1011 between discharging spiral 103 and discharging section 1012 cavitys; The chemically separated aluminium plastic composite packaging material of process from discharging opening 10121 discharges; Can get into vertical separation as shown in Figure 1 dries in the device 20; And dry 20 pairs in device by vertical separation and dry and separating treatment through the aluminium plastic composite packaging material after the Chemical Decomposition; Obtain the aluminium foil and the plastics of physical separation, its concrete implementation procedure will elaborate below.
In the separating reaction device 10 of present embodiment, the reaction spiral 102 that is used to transmit material is with discharging spiral 103 does not have an axle helical structure, like this; Do not have the axle spiral when making, can have better suppleness, less demanding to the spiral alignment; It is bigger that the length of feasible nothing axle spiral and diameter all can be done; Particularly for reaction spiral 102, because long enough and diameter that reaction spiral 102 can be done are enough big, the material of its transmission is just many more; And can not produce material and stop up, can effectively improve the material disposal ability.Can find out, for adopting the separator that a spiral is arranged in the existing piece-rate system, because the restriction of a helical structure is arranged; Cause having a spiral toughness relatively poor, the spiral alignment is required high, make have the diameter of a spiral and length all can not do bigger; Have a strong impact on the feed separation disposal ability; And easy blockage phenomenon, and the present embodiment piece-rate system is carried out the transmission of material through adopting a nothing axle helical structure, can effectively improve the feed separation disposal ability; And be difficult for producing the material obstruction, thereby can improve the feed separation disposal ability of entire separation system.
In the present embodiment; For guaranteeing the Chemical Decomposition effect of aluminium plastic composite packaging material in conversion zone 1011, the shell of conversion zone 1011 can be double-deck shell, has the space between this double-deck shell; And the internal layer near the cavity of conversion zone 1011 is the heat conduction shell layer; Like this, when aluminium plastic composite packaging material is separated, can be in the space of this double-deck shell water flowing steam; Temperature to guarantee the release agent in the conversion zone 1011 can remain on certain temperature range, improves the Chemical Decomposition effect of aluminium plastic composite packaging material.In the practical application; Whole separator 101 can be one-body molded; Shell can adopt the stainless steel double layer jacket structure, like this, and when aluminium plastic composite packaging material is separated; Just can guarantee the temperature in the cavity of separator 101, guarantee the separating effect of aluminium plastic composite packaging material through water flowing steam mode in chuck.It will be understood by those skilled in the art that double-deck shell except can adopting the stainless steel making, also can adopt other materials to be made; For example skin can be non-wear resistant corrosion resistant heat-barrier material, and internal layer is the double-deck shell of wear resistant corrosion resistant Heat Conduction Material, like this; Can avoid because of being connected with water vapour environment to external world in the separator shell; Particularly operating personnel bring harm, improve the security of separator work, also can reduce the material cost of separator shell.
It will be understood by those skilled in the art that in the above-mentioned double-deck shell, except can water flowing steam with the temperature of guaranteeing release agent in the conversion zone, also can be connected with other high-temp liquids or gas, present embodiment is not done special restriction.
In the separating reaction device 10 of present embodiment, shown in Fig. 2 A-Fig. 2 C, be provided with 2 reaction spirals 102 in the conversion zone 1011, be provided with 2 discharging spirals 103 in the discharging section 1012 equally, and discharging spiral 103 be oppositely arranged with reaction spiral 102.
Particularly; Shown in Fig. 2 A-Fig. 2 C, in the present embodiment, 2 reaction spirals 102 are set in parallel in the cavity of conversion zone 1011; 2 discharging spiral 103 these 2 reaction spirals 102 settings relatively respectively; And the angle between the rotating shaft of reaction spiral 102 and discharging spiral 103 is 90 °, and the angle between the rotating shaft of 2 discharging spirals 103 is set to 120 °, and is 60 ° with the angle of plumb line.Reaction spiral and discharging spiral are provided with like this, can guarantee the chemically separated material of process that sends from conversion zone 1011, can better discharge with the discharging spirals in the discharging section 1,012 103, and convenient setting of reacting drive motors and discharging drive motors; Simultaneously; During 10 work of separating reaction device; Only needing to react spiral 102 is immersed in the release agent that is full of in the conversion zone 1011; Discharging spiral 103 then need not be immersed in the release agent, thereby avoids carrying a large amount of release agents by the material that discharging opening is discharged, thereby saves the use amount of release agent.Can find out, through to discharging spiral 103 setting, can effectively improve the material that 103 pairs of reactions of discharging spiral spiral 102 sends and in time handle, avoid material to pile up in the end of discharging spiral 103 with reaction spiral 102 relative positions.
In the present embodiment, the cavity of conversion zone 1011 can comprise 2 U type grooves 10112, and 2 U type groove sides no intermediate cavity body wall that communicates with each other; 2 reaction spirals 102 can be separately positioned in these 2 U type grooves 10112.Can find out that the setting of 2 U type grooves 10112 can make 2 reaction spirals 102 in each groove, work respectively, reduces by 2 phase mutual interference between the reaction spiral 102, improves the convenience that reaction spiral 102 is installed, and the reliability and stability of work; Simultaneously, under the situation that improves the material disposal ability, also can reduce the material consumption of separator, reduce the occupation of land space of separator.
In the present embodiment; Shown in Fig. 2 A and Fig. 2 C; Discharging section 1012 can comprise first discharging section 10122 and second discharging section 10123 of separate setting; Relative response sections 1011 vertical setting respectively of first discharging section 10122 and second discharging section 10123,2 discharging spirals 103 are separately positioned in the cavity of first discharging section 10122 in the cavity with second discharging section 10123, and discharging spiral 103 can vertically settings of relative response spirals 102.It will be appreciated by those skilled in the art that; First discharging section 10122 and second discharging section 10123 are respectively arranged with discharging opening away from the end of reaction spiral 102; So that the material with discharging spiral 103 is discharged can be discharged from the discharging opening of each discharging section respectively, like this, the chemically separated aluminium plastic composite packaging material of process that each discharging opening is discharged; Can send into vertical separation respectively and dry device and carry out physical separation processes, thereby improve separating reaction device 10 chemical treatment efficient.
In the present embodiment, do not have a stability of spiral work, and material can promptly near an end of discharging spiral 103, be provided with the reaction drive motors at the end of reaction spiral 102 away from charging aperture better with screw for improving; Can promptly, the discharging drive motors be set at the end of discharging spiral 103 near discharging opening away from an end of reaction spiral 102.Like this, the reaction drive motors just is arranged on the discharge end of reaction spiral, and the discharging drive motors just is arranged on the discharge end of discharging spiral, can effectively improve the ability of not having axle spiral transmission material.
Vertical separation dries device 20
In the present embodiment, vertical separation dries device 20 and can the aluminium plastic composite packaging material after handling through Chemical Decomposition be dried and separating treatment, particularly; Shown in Fig. 3 A-Fig. 3 C; Vertical separation in the present embodiment piece-rate system dries device 20 and specifically can be vertical structure, comprises vertically disposed cylindrical shell 201, rotating shaft 202, feeding warehouse 203 and motor 204, wherein; Cylindrical shell 201 comprises inner barrel 2011 and outer cylinder body 2012; Have the gap between this inner barrel 2011 and the outer cylinder body 2012, and the barrel of inner barrel 2011 is provided with the sieve aperture (not shown), promptly the outer wall of inner barrel 2011 can be screen cloth and forms; Be provided with rotating shaft 202 in the cavity of inner barrel 2011, be interrupted being provided with a plurality of sickle blades 2021 in the rotating shaft 202, these a plurality of sickle blades 2021 are shape distribution in the shape of a spiral from top to bottom; The lower end of cylindrical shell 201 is provided with feeding warehouse 203, and this feeding warehouse 203 is goed deep in the lower end of rotating shaft 202, and the shaft branch that feeding warehouse 203 is goed deep in rotating shaft 202 is provided with endless spiral 2022; On the outer cylinder body 2012; Position near the lower end of cylindrical shell 201 offers first discharge gate 2013; On the cylindrical shell 201, offer second discharge gate 2014 that runs through outer cylinder body 2012 and inner barrel 2011 near the position of the upper end of cylindrical shell 201, and feeding warehouse 203 is provided with first charging aperture 2031; Discharging opening 10121 on the separating reaction device 10 among this first charging aperture 2031 and Fig. 1-Fig. 2 C is connected, and can connect through conveyer belt between them; Motor 204 is installed in the upper end of cylindrical shell 201, is connected with rotating shaft 202, is used to drive rotating shaft 202 work.
In the present embodiment, can directly be transferred into vertical separation through the aluminium plastic composite packaging material after 10 processing of separating reaction device and dry device 20, and dry in the device 20 by the vertical separation of the independent feeding warehouse that is provided with 203 entering on the vertical separation drying device 20; Drive rotating shaft 202 rotations through control motor 204, can the material that get in the feeding warehouse 203 be sucked between the endless spiral 2022, and along with endless spiral 2022 is sent in the inner barrel 2011; In inner barrel 2011; Aluminium foil in the material can be under the strike effect of the sickle blade 2021 that is interrupted setting and fragmentation is peeled off; At this moment, the aluminium bits that impacted out will get into the gap between inner barrel 2011 and the outer cylinder body 2012 from the sieve aperture on inner barrel 2011 barrels, and finally fall first discharge gate 2013; Discharge by first discharge gate 2013; And plastics all also are the bigger shape of full wafer or volume generally, and second discharge gate 2014 that these plastics can be provided with from cylindrical shell 201 tops is discharged, thereby realize the physical separation of plastic-aluminum.In the process of plastic-aluminum physical separation; The centrifugal force that rotating shaft 202 rotations produce can be removed the release agent on the plastics simultaneously; Plastics are removed acid treatment; And the release agent of deviating from can be discharged from first discharge gate 2013 with the aluminium bits, and these release agents can be recovered utilization again, to reduce the consumption and the wastewater treatment of release agent.
In the present embodiment; For reaching plastic-aluminum physical separation effect preferably, shown in Fig. 3 A and Fig. 3 C, the length d of sickle blade 2021 can be 10cm-15cm; And the height h of sickle blade 2021 can be 5cm; In addition, sickle blade 2021 is 75 ° with the axial angle a of rotating shaft 202, and the feasible a plurality of sickle blades 2021 that are provided with at interval are integral body shape distribution in the shape of a spiral in rotating shaft 202.Through test; The setting of above-mentioned sickle blade 2021 can make the plastic-aluminum physical separation rate of the aluminium plastic composite packaging material after the Chemical Decomposition reach 99.3%, and the drying degree of plastics can reach 95.5%; Make the plastics after separating directly to carry out plastic granulating, process plastic product sale or use.
In the present embodiment, for making the aluminium after the plastic-aluminum physical separation consider quality to be worth doing, promptly the purity of aluminium bits is higher; The diameter of sieve aperture can be set to 3mm-5mm on the barrel of inner barrel 2011, through overtesting, when vertical separation dries device work; The diameter of the plastics that produce in the drying process generally can be greater than 5mm, therefore, and when sieve diameter during in this size range; Can effectively avoid plastics to sneak into aluminium bits, and can guarantee that the aluminium bits all discharge from sieve aperture.
In the present embodiment; Because the aluminium plastic composite packaging materials that get in the vertical separation drying device 20 are generally large-area shape; Therefore, for avoiding aluminium plastic composite packaging material twisting shaft 202 in vertical separation dries device 20, the diameter d 1 of this rotating shaft 202 can be set to be equal to or greater than 20cm.Like this, in to material drying, separation process, avoid the winding of full wafer material countershaft 202.
In the present embodiment; Above-mentioned feeding warehouse 203 can be one-body molded with cylindrical shell 201; Also can divide body formed and fit together, particularly, shown in Fig. 3 A; Present embodiment feeding warehouse 203 is one-body molded with cylindrical shell 201, and the transfer point of sickle blade 2021 and endless spiral 2022 is positioned at the charging aperture place of feeding warehouse 203 at this moment; Simultaneously, feeding warehouse 203 and rotating shaft 202 near sidewall on also can comprise outer cylinder body, go deep into the drying the separation of device and dry disposal ability of feeding warehouse through changing outer cylinder body apart from the vertical separation of scalable.
In the present embodiment, vertical separation dries device 20 when plastic-aluminum is separated, and can carry out continuously, separate efficiently; Aluminium bits and plastics are reclaimed respectively, simultaneously, in separating process, can dry with depickling and handle plastics; Remove the release agent in the plastics; Make the release agent deviate to discharge, and recyclable utilization, thereby reduced the waste of release agent with the aluminium bits.
In the present embodiment; Shown in Fig. 1-Fig. 3 C, for handling considering to be worth doing through the aluminium after the physical separation processes, piece-rate system also can be provided with sedimentation centrifuge 30 and eddy current sorter 40; Wherein, The charging aperture of sedimentation centrifuge 30 can be connected with vertical first discharge gate 2013 that dries device 20 that separates, and is used for that the aluminium foil that dries device 20 discharges from vertical separation is carried out depickling and handles, and the release agent that is about to wherein removes; Eddy current sorter 40 is connected with the solid phase outlet of sedimentation centrifuge 30, is used for removing the paper pulp that aluminium foil possibly exist.Sedimentation centrifuge 30 described in the present embodiment all can adopt traditional device with eddy current sorter 40, and it is embodied in this and repeats no more.
In the present embodiment; Shown in Fig. 1-Fig. 3 C; Aluminium plastic composite packaging material from the charging aperture of separating reaction device 10 10111 gets into can not be sent to discharging opening 10121 through there being an axle spiral, and in transport process, accomplishes with the Chemical Decomposition that wherein is full of release agent and react separating reaction device 10 in; Aluminium foil is separated from plastics, accomplish the Chemical Decomposition of aluminium plastic composite packaging material; Can directly enter first charging aperture 2031 that vertical separation dries device 20 from discharging opening 10121 through chemically separated aluminium plastic composite packaging material; And under the rotating shaft of the sickle blade that in vertical separation dries device 20, the is provided with drive; Realize the physical separation of plastic-aluminum; Aluminium bits after the separation are discharged from vertical first discharge gate 2013 and second discharge gate 2014 that dry device 20 of separating respectively with plastics, simultaneously, and in the plastic-aluminum physical separating process; Release agent in the aluminium plastic composite packaging material also can be discharged from first discharge gate 2013 with the aluminium bits, thereby realizes the depickling of plastics is handled; From the plastics that second discharge gate 2014 is discharged, to handle through depickling, the processing of can directly packing perhaps also can be carried out the processing of packing after the simple rinsing processing, obtains final plastic product; The aluminium bits and the release agent of discharging from first discharge gate 2013 can carry out the depickling processing again, so that release agent is broken away from from the aluminium bits, obtain required aluminium bits, and simultaneously, the release agent that removes can utilize again.
In the present embodiment, through a nothing axle spiral is set aluminium plastic composite packaging material is transmitted in the separating reaction device 10, can effectively improve aluminium plastic composite packaging material and carry out the Chemical Decomposition ability of processing; Simultaneously; Can dry device 20 through vertical separation through chemically separated aluminium plastic composite packaging material directly dries and separates; Can avoid the existing centrigugal swing dryer that adopts separately respectively to dry and adopt centrifugal dressing machine to carry out the low and big problem of waste water generation of the existing drying rate of feed separation, separation rate, disposal ability; Can effectively reduce the loss of aluminium bits and release agent, and reduce and handle energy consumption.
In the present embodiment; As shown in Figure 1, first discharge gate that vertical separation dries device 20 is connected with the charging aperture of sedimentation centrifuge 30, and this sedimentation centrifuge 30 can carry out separating treatment to aluminium foil and the release agent mixture that enters from first discharge gate; This sedimentation centrifuge 30 specifically can be the sedimentation centrifugal device of traditional structure; Through centrifugal action release agent is separated from aluminium foil, make aluminium foil to discharge from the solid phase outlet, the release agent of separation can be discharged from the liquid phase outlet.
In the present embodiment, as shown in Figure 1, the liquid phase outlet of sedimentation centrifuge 30 is connected with release agent Buffer Pool 801, and this release agent Buffer Pool 801 can be kept in the release agent of discharging from sedimentation centrifuge 30; Simultaneously; This release agent Buffer Pool 801 is connected to the charging aperture of separating reaction device 10 through pipeline; And liquid pump 802 is installed on the pipeline, can the release agent in the release agent Buffer Pool 801 be pumped to separating reaction device 10 through liquid pump 802, so that release agent is recycled; Can improve the utilization rate of release agent, reduce the release agent consumption of piece-rate system.
For ease of embodiment of the invention technical scheme is had a better understanding, the concrete application in the face of the embodiment of the invention describes down.
Fig. 4 is the concrete structural representation of using of the embodiment of the invention.In the present embodiment; As shown in Figure 4; Be provided with 2 separating reaction devices 10 in this piece-rate system and dry device 20 with 2 vertical separation; And through shared centrigugal swing dryer 30 and eddy current sorter 40, and other auxiliary equipment realize aluminium plastic composite packaging material is carried out continuous separating treatment, have industrial applicibility preferably.Particularly, as shown in Figure 4, separating reaction device 10 charging apertures are connected with formic acid holding vessel 501 and nitric acid storage tank 502, and are connected with plastic-aluminum conveyer belt 60; 2 vertical separation dry device 20 and are connected with 2 separating reaction devices 10 respectively; And first discharge gate of 2 vertical separation drying devices 20 all is connected with sedimentation centrifuge 30; Vertical separation dries second discharge gate of device 20 can send the plastics of discharging into potcher 702 and plastics baling press 703 through conveyer belt 701, plastics are done further processing; The solid phase outlet of sedimentation centrifuge 30 is connected to eddy current sorter 40, and the liquid phase outlet is connected to release agent cache pool 801, and release agent cache pool 801 is connected to the charging aperture of separating reaction device 10 through liquid pump 802.To describe of the whole separation process of present embodiment piece-rate system below aluminium plastic composite packaging material.
(1) before aluminium plastic composite packaging material is handled; Earlier be that separating reaction device 10 injects release agent; Particularly, can in separating reaction device 10, inject formic acid and salpeter solution through formic acid storage tank 501 and nitric acid holding vessel 502; As release agent, and be full of the cavity of conversion zone in the separating reaction device 10.Nitric acid wherein is to use as the PH conditioning agent, and the concentration of formic acid is 2-4mol/L, and concentration of nitric acid is 0.010-0.025mol/L.
(2) will send into the charging aperture of separating reaction device 10 without the full wafer aluminium plastic composite packaging material of fragmentation continuously from plastic-aluminum conveyer belt 60; Control the rotary speed of reaction spiral in transfer rate and the separating reaction device 10 of plastic-aluminum conveyer belt 60 simultaneously, guarantee that the liquid-solid ratio between the release agent and aluminium plastic composite packaging material is 30:1-15:1 in the separating reaction device 10; Simultaneously, can in the gap of the separator shell of separating reaction device 10, feed water vapour, with the temperature maintenance of guaranteeing release agent wherein at 40 ℃-75 ℃.
(3) drive that gets into the reaction spiral that the aluminium plastic composite packaging material of separating reaction device 10 can be in conversion zone down on one side and release agent generation separating reaction, on one side move to discharging section, in this process, can realize the Chemical Decomposition of aluminium plastic composite packaging material; The aluminium plastic composite packaging material that gets into discharging section can be discharged from the discharging opening of separating reaction device 10 under the drive of discharging spiral, and gets into vertical separation drying device 20 from the material mouth of vertical separation drying device 20.In this process; For guaranteeing the chemically separated effect of aluminium plastic composite packaging material; Can suitably control the rotary speed of reaction spiral; Make the Chemical Decomposition of just accomplishing plastic-aluminum when aluminium plastic composite packaging material gets into discharging section, particularly, it is 30 minutes-40 minutes that the rotating speed that can control the reaction spiral in the present embodiment system makes the time of aluminium plastic composite packaging material in release agent.
(4) get into vertical separation and dry device 20 and the chemically separated aluminium plastic composite packaging material of process; Dry under the rotating shaft high speed turning effort in the device 20 in vertical separation; Can the aluminium bits be hit down from plastic sheeting, realize the physical separation of plastic-aluminum, simultaneously plastic sheeting carried out depickling and dry processing; And the plastic sheeting after the physical separation is discharged from second discharge gate, and aluminium bits, release agent and a spot of plastics and paper pulp are discharged from first discharge gate.
The plastic sheeting of (5) discharging from second discharge gate can pass through conveyer belt 701 and be sent to plastics baling press 703; To the plastic sheeting processing of packing; Plastics after obtaining handling, and in this process, can pass through in 702 pairs of plastic sheetings of potcher the release agent of a little and take off the processing of packing again after washing.
Aluminium bits, release agent and a spot of paper pulp and the plastics of (6) discharging from first discharge gate can get into sedimentation centrifuge 30; Carrying out depickling handles; The acid solution that removes is that release agent and a spot of plastics can be discharged from the liquid phase outlet of sedimentation centrifuge 30, and the aluminium bits after depickling is handled and a spot of paper pulp then can be discharged from the solid phase outlet of sedimentation centrifuge 30;
The aluminium bits of (7) discharging from sedimentation centrifuge 30 get into eddy current sorter 40 with a small amount of paper pulp and remove pulp processing; Aluminium bits or paper pulp and recirculated water are pumped to the eddy current sorter; Paper pulp and small amount of aluminum bits are discharged from the top of eddy current sorter 40 with part recirculated water, and most of aluminium bits are discharged from eddy current sorter 40 bottoms with recirculated water;
The aluminium bits of (8) discharging from eddy current sorter 40 bottoms get into screw centrifuge 901 with recirculated water and carry out processed; For further reducing aluminium bits moisture content; The aluminium bits of discharging from screw centrifuge 901 also need get into dryer 902 dries processing, and the aluminium bits after the oven dry promptly are the aluminium bits products after the final physical separation.
The paper pulp of (9) discharging from eddy current sorter 40 tops and small amount of aluminum are considered to be worth doing and can be got into wet type rotary screen 111 and carry out paper and separate; Paper pulp and recirculated water drain into the slanted screen 112 of wet type rotary screen 111 bottoms through the sieve aperture of wet type rotary screen 111, can return the recycled writing paper production technology behind a spot of paper pulp that sifts out from slanted screen 112; Can get into eddy current sorter 40 separating treatment that circulates once more from the terminal a spot of aluminium bits of discharging of wet type rotary screen 111.
After the release agent of (10) discharging from sedimentation centrifuge 30 and a small amount of broken plastics leach broken plastics through screen cloth 803; Get into release agent cache pool 801; And return separating reaction device 10 through liquid pump 802 and carry out recycle, a small amount of broken plastics that screen cloth 803 leaches can return vertical separation drying device 20 again and carry out circular treatment.
Can find out; The present embodiment piece-rate system can effectively be carried out separating treatment to aluminium plastic composite packaging material; Can realize the continuous separation technology that aluminium plastic composite packaging material is handled; Can effectively save time loss reinforced, discharging, the separating reaction time can foreshorten to 35min, can effectively improve separation treatment efficiency.
In the present embodiment; Piece-rate system can be provided with a control device; Be used for separating reaction device 10, vertical separation are dried device 20, sedimentation centrifuge 30 and each conveyer belt, pump etc. and control, after guaranteeing each equipment operation, can carry out separating treatment to aluminium plastic composite packaging material continuously.
What should explain at last is: above each embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although the present invention has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (7)
1. one kind has the vertical continuous piece-rate system of aluminium plastic composite packaging material that release agent reclaims; It is characterized in that; Comprise aluminium plastic composite packaging material is carried out the separating reaction device that Chemical Decomposition is handled; And to carry out the vertical separation drying device of physical separation processes through the aluminium plastic composite packaging material after the Chemical Decomposition, wherein:
Said separating reaction device comprises the separator with cavity, and interior reaction spiral and the discharging spiral of cavity that is arranged on said separator;
Said separator comprises conversion zone and discharging section, and the feed end away from said discharging section on the said conversion zone is provided with charging aperture, and the discharge end away from said conversion zone on the said discharging section is provided with discharging opening, and the height of said discharge end is higher than the height of feed end;
Said reaction spiral is arranged in the cavity of said conversion zone, and said discharging spiral is arranged in the cavity of said discharging section, and the said relatively reaction spiral of said discharging spiral vertically is provided with;
Said reaction spiral and discharging spiral are does not have the axle helical structure, and said discharging spiral is respectively arranged with motor with an end of reaction spiral;
Said vertical separation dries device and comprises:
Vertically disposed cylindrical shell; Said cylindrical shell comprises inner barrel and the outer cylinder body that the gap is provided with; The barrel of said inner barrel is provided with sieve aperture; And the lower end of said cylindrical shell is provided with feeding warehouse, and said feeding warehouse place is provided with first charging aperture, and said first charging aperture is connected with discharging opening on the said separating reaction device;
Position near the lower end of said cylindrical shell on the said outer cylinder body offers first discharge gate; Position near the upper end of said cylindrical shell on the said cylindrical shell offers second discharge gate that runs through said outer cylinder body and inner barrel; Said first discharge gate is used for discharging through aluminium foil after the physical separation processes and release agent mixture, and said second discharge gate is used for discharging through the plastics after the physical separation processes;
Be provided with rotating shaft in the said inner barrel, be interrupted being provided with a plurality of sickle blades in the said rotating shaft, and the shape distribution in the shape of a spiral of said a plurality of sickle blade; Said feeding warehouse is goed deep in the lower end of said rotating shaft, and the shaft branch that gos deep into said feeding warehouse in the said rotating shaft is provided with endless spiral; The upper end of said cylindrical shell is provided with the motor that is connected with said rotating shaft;
Said system also comprises: sedimentation centrifuge and release agent Buffer Pool; The charging aperture of said sedimentation centrifuge is connected with said vertical first discharge gate that dries device that separates, and is used for aluminium foil and release agent mixture that said vertical separation drying device is discharged are carried out separating treatment;
Said release agent Buffer Pool is connected with the liquid phase outlet of said sedimentation centrifuge, be used to store the release agent that said sedimentation centrifuge is discharged, and said separation buffer pond is connected to the charging aperture of said separating reaction device through liquid pump and pipeline.
2. the vertical continuous piece-rate system of aluminium plastic composite packaging material with release agent recovery according to claim 1 is characterized in that the shell of said conversion zone is double-deck shell;
Have the space between the said double-decker, and be the heat conduction shell layer near the internal layer of the cavity of said conversion zone.
3. the vertical continuous piece-rate system of aluminium plastic composite packaging material with release agent recovery according to claim 1 is characterized in that the quantity of said reaction spiral and discharging spiral is 2;
2 said reaction spirals are set in parallel in the cavity of said conversion zone, and 2 relative respectively 2 said reaction spirals of said discharging spiral are provided with, and the angle between the rotating shaft of said reaction spiral and discharging spiral is 90 °;
Angle between the rotating shaft of 2 said discharging spirals is 120 °, is 60 ° with the angle of plumb line.
4. according to claim 3 have a vertical continuous piece-rate system of aluminium plastic composite packaging material that release agent reclaims, and it is characterized in that the cavity of said conversion zone comprises 2 U type grooves, and said 2 U type groove sides no intermediate cavity body wall that communicates with each other;
2 said reaction spirals are separately positioned in said 2 U type grooves.
5. the vertical continuous piece-rate system of aluminium plastic composite packaging material with release agent recovery according to claim 1 is characterized in that the length of said sickle blade is 10cm-15cm, and said sickle blades height is 5cm;
The axial angle of said sickle blade and said rotating shaft is 75 °.
6. the vertical continuous piece-rate system of aluminium plastic composite packaging material with release agent recovery according to claim 1 is characterized in that the diameter of said rotating shaft is more than or equal to 20cm.
7. the vertical continuous piece-rate system of aluminium plastic composite packaging material with release agent recovery according to claim 1 is characterized in that, also comprises:
The eddy current sorter is connected with the solid phase discharging opening of said sedimentation centrifuge, is used for removing the paper pulp of aluminium foil.
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