CN102744241B - Shaftless spiral vertical-type continuous separation treatment system of aluminum-plastic compound package material - Google Patents
Shaftless spiral vertical-type continuous separation treatment system of aluminum-plastic compound package material Download PDFInfo
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- CN102744241B CN102744241B CN201210260664.2A CN201210260664A CN102744241B CN 102744241 B CN102744241 B CN 102744241B CN 201210260664 A CN201210260664 A CN 201210260664A CN 102744241 B CN102744241 B CN 102744241B
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- 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
Abstract
The invention provides a shaftless spiral vertical-type continuous separation treatment system of an aluminum-plastic compound package material. The shaftless spiral vertical-type continuous separation treatment system of the aluminum-plastic compound package material comprises a separation reaction device and a vertical-type separation spin-drying device, wherein the separation reaction device carries out chemical separation treatment on the aluminum-plastic compound package material; the vertical-type separation spin-drying device carries out physical separation treatment on the chemically separated aluminum-plastic compound package material; a reaction spiral and a discharge spiral arranged in the separation reaction device are both in shaftless spiral structures; an inner cylinder body of the vertical-type separation spin-drying device is internally provided with a rotating shaft, and the rotating shaft is provided with a plurality of sickle-shaped blades at intervals. The shaftless spiral vertical-type continuous separation treatment system of the aluminum-plastic compound package material can effectively realize the continuous separation treatment of the aluminum-plastic compound package material and is higher in aluminum-plastic separation treatment capability.
Description
Technical field
The invention belongs to feed separation technology, particularly relate to and a kind ofly can carry out industrialization to aluminium plastic composite packaging material and be continuously separated that the aluminium plastic composite packaging material of the employing shaftless screw of process is vertical is continuously separated treatment system.
Background technology
Paper plastic-aluminum composite packing material is a kind of common packaging material, is widely used in the packaging such as milk and soft drink.Along with the raising of people's environmental consciousness and the scarcity of raw material, the regeneration of paper plastic combined package becomes very necessary, when carrying out regeneration to paper plastic combined package, after normally paper substrate being wherein separated, the more remaining material formed by aluminium foil and plastics is separated again.
Wherein, the regenerative use technology of paper plastic-aluminum composite packing waste mainly comprises two classes, and a class is Direct Regeneration technology, by the raw material that regeneration after the process of paper plastic-aluminum composite packing Integral-crushing is new; Another kind of is separation regeneration technology, recycles respectively after being separated by kind of the material of three in paper plastic-aluminum composite packing.Relative separation regeneration techniques, Direct Regeneration technology mainly moulds wood and the happy plate of coloured silk to produce extrusion molding, and it cannot reclaim paper pulp, plastics and aluminium effectively, does not embody the self-value of paper fiber, aluminium foil and plastics.
Separation regeneration technology can be divided into two parts according to its separation process, is first paper and being separated of plastic-aluminum, i.e. paper pulp isolation technics; Next is aluminium foil and being separated of plastics, i.e. aluminum-plastic separation technology.Paper is separated with plastic-aluminum, can be realized by the method for hydraulic pulping, and the current comparative maturity of this technology is applied more extensive.Being separated of the aluminium foil eliminating the aluminium plastic composite packaging material after paper pulp and plastics is key and the difficult point of separation regeneration technology.
At present, when the aluminium plastic composite packaging material be compounded to form aluminium foil and plastics is separated, usual employing wet separation technology, be soaked in release agent by aluminium plastic composite packaging material, by to dissolve or swelling action destroys the cohesive force between each layer thus 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 carry out drying, physical separation that separation etc. realizes plastic-aluminum.For this reason, prior art proposes one and realizes aluminium plastic composite packaging material continuous separating system, comprise and soak separator, centrigugal swing dryer and basket centrifuges screening machine, wherein, soak in separator and be provided with axle spiral to transmit material, its separation process comprises the following steps: aluminium plastic composite packaging material drops into and is loaded with in this immersion separator of release agent, through carrying out Chemical Decomposition, and by having axle screw conveyor to centrigugal swing dryer by (1); (2) centrigugal swing dryer can carry out drying process by what send into through chemically separated material, removes release agent wherein, the material after drying is sent to centrifugal dressing machine; (3) under centrifugal dressing machine utilizes the center rotor effect of high-speed rotation, aluminium foil is separated with plastics, and is expelled to plastic granulator and turbo separator respectively, and turbo separator can be connected with aluminium smelting apparatus and obtains aluminium.
But, in existing continuous separating system, adopting has axle spiral to carry out in the immersion separator of material transferring, owing to there being the restriction of axle spiral self structure, what cause having axle screw diameter and length all can not do is excessive, thus greatly limit the separation capacity of separator to material, make the material disposal ability of whole piece-rate system poor; And have the pliability of axle spiral poor, easily there is feed blocking, affect the feed separation treatment effect of whole piece-rate system; In addition, in existing piece-rate system, when material after Chemical Decomposition is dried by centrigugal swing dryer, depart from from plastics for avoiding feed blocking and aluminium foil, maximum (top) speed and the length of centrigugal swing dryer are all restricted, make the drying rate of centrigugal swing dryer and disposal ability lower, aluminium bits and the loss of release agent higher; When physical separation processes is carried out by centrifugal dressing machine to the material after centrifuge dripping, for reducing plugging fault rate, centrifugal dressing machine need adopt lower rotating speed, greatly reduce aluminum-plastic separation effect and disposal ability, in addition, for reclaiming separately aluminium bits, also need spray in a large number in centrifugal dressing machine and increasing setting-out, causing subsequent wastewater treatment cost to increase.Generally, existing continuous separation technology not easily realizes carrying out industrializedly being continuously separated process on a large scale to aluminium plastic composite packaging material.
Summary of the invention
The invention provides and a kind ofly adopt that the aluminium plastic composite packaging material of shaftless screw is vertical is continuously separated treatment system, material disposal ability difference that existing piece-rate system exists can be overcome and feed blocking, defect that cost for wastewater treatment is high easily occur, can effectively improve material disposal ability, reduce the generation of waste water.
The invention provides and a kind ofly adopt that the aluminium plastic composite packaging material of shaftless screw is vertical is continuously separated treatment system, comprise separating reaction device aluminium plastic composite packaging material being carried out to Chemical Decomposition process, and the aluminium plastic composite packaging material after Chemical Decomposition is carried out to the vertical separation spin-drying device of physical separation processes
Wherein:
Described separating reaction device comprises the separator with cavity, and the reaction spiral be arranged in the cavity of described separator and discharging spiral;
Described separator comprises conversion zone and discharging section, and described conversion zone is provided with charging aperture away from the feed end of described discharging section, and described discharging section is provided with discharging opening away from the discharge end of described conversion zone, and the height of described discharge end is higher than the height of feed end;
Described reaction spiral is arranged in the cavity of described conversion zone, and described discharging spiral is arranged in the cavity of described discharging section, and the relatively described reaction spiral of described discharging spiral is vertically arranged;
Described reaction spiral and discharging spiral are shaftless screw structure, and one end of described discharging spiral and reaction spiral is respectively arranged with motor;
Described vertical separation spin-drying device comprises:
Vertically disposed cylindrical shell, described cylindrical shell comprises inner barrel and the outer cylinder body of gap setting, the barrel of described inner barrel is provided with sieve aperture, and the lower end of described cylindrical shell is provided with feeding warehouse, described feeding warehouse place is provided with the first charging aperture, and described first charging aperture is connected with the discharging opening on described separating reaction device;
The position of the lower end near described cylindrical shell on described outer cylinder body offers the first discharge gate, the position of the upper end near described cylindrical shell on described cylindrical shell offers the second discharge gate running through described outer cylinder body and inner barrel, described first discharge gate is used for the aluminium foil after physical separation processes and release agent mixture to discharge, and described second discharge gate is used for the plastics after physical separation processes to discharge;
Be provided with rotating shaft in described inner barrel, described rotating shaft is interrupted being provided with multiple sickle blade, and described multiple sickle blade distribute in the shape of a spiral; Described feeding warehouse is goed deep in the lower end of described rotating shaft, and the shaft described rotating shaft being goed deep into described feeding warehouse divides and is provided with endless spiral; The upper end of described cylindrical shell is provided with the motor be connected with described rotating shaft.
The aluminium plastic composite packaging material of employing shaftless screw provided by the invention is vertical is continuously separated treatment system, by adopting the separating reaction device of shaftless screw, Chemical Decomposition process is carried out to aluminium plastic composite packaging material, and dried and separating treatment through chemically separated aluminium plastic composite packaging material by the vertical separation spin-drying device being provided with sickle blade, can effectively improve aluminium plastic composite packaging material separation capacity, to in aluminium plastic composite packaging material processing procedure, effectively can avoid the problem of feed blocking, reduce the generation of waste water.
Accompanying drawing explanation
The vertical structural representation being continuously separated treatment system of aluminium plastic composite packaging material of the employing shaftless screw that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 A is the structural representation of separating reaction device in Fig. 1;
Fig. 2 B be in Fig. 2 A A-A to sectional view;
Fig. 2 C be in Fig. 2 A B-B to sectional view;
Fig. 3 A is the structural representation of vertical separation spin-drying device in Fig. 1;
Fig. 3 B is the close-up schematic view at A place in Fig. 3 A;
Fig. 3 C is the cross section enlarged diagram of Fig. 3 A shaft and sickle blade;
Fig. 4 is the structural representation of embodiment of the present invention embody rule.
Detailed description of the invention
The feed separation disposal ability existed in view of prior art piece-rate system is poor, easy generation feed blocking and the large problem of waste water generation, the invention provides and a kind ofly adopt that the aluminium plastic composite packaging material of shaftless screw formula is vertical is continuously separated treatment system, by adopting the separating reaction device of shaftless screw structure, and adopt and can dry the aluminium plastic composite packaging material after Chemical Decomposition be simultaneously separated spin-drying device with the vertical of separating treatment, effectively can improve the continuity of aluminium plastic composite packaging material process, reduce the loss of release agent and aluminium bits, reduce the generation of waste water, improve aluminium plastic composite packaging material separation capacity.To be described in detail technical solution of the present invention with instantiation below.
The vertical structural representation being continuously separated treatment system of aluminium plastic composite packaging material of the employing shaftless screw that Fig. 1 provides for the embodiment of the present invention; Fig. 2 A is the structural representation of separating reaction device in Fig. 1; Fig. 2 B be in Fig. 2 A A-A to sectional view; Fig. 2 C be in Fig. 2 A B-B to sectional view; Fig. 3 A is the structural representation of vertical separation spin-drying device in Fig. 1; Fig. 3 B is the close-up schematic view at A place in 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 separating reaction device 10 and is separated spin-drying device 20 with vertical, wherein, separating reaction device 10 is for carrying out Chemical Decomposition process to aluminium plastic composite packaging material, aluminium plastic composite packaging material can be immersed in release agent and carry out Chemical Decomposition reaction, by aluminium wherein, mould separation; Vertical separation spin-drying device 20 can be used for drying and physical separation processes the chemically separated aluminium plastic composite packaging material after separating reaction device 10 processes, by aluminium foil wherein and plastics physical separation, depickling process is carried out to plastics simultaneously, the plastics of discharging from vertical separation spin-drying device 20 directly can make plastic product, can be made into aluminium bits product after the aluminium foil of discharging can carry out depickling process, thus realize the separating treatment to aluminium plastic composite packaging material.
For ease of the understanding to embodiment of the present invention technical scheme, will respectively the separating reaction device 10 in the present embodiment be described with the vertical spin-drying device 20 that is separated below.
Separating reaction device 10
In the present embodiment, as shown in figures 2 a-c, separating reaction device 10 specifically can comprise separator 101, reaction spiral 102 and discharging spiral 103, 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 conversion zone 1011 is provided with charging aperture 10111, discharging section 1012 is provided with discharging opening 10121(away from the discharge end A2 place of conversion zone 1011 ask for an interview shown in Fig. 2 C), 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 spiral 102 is vertically arranged; Reaction spiral 102 and discharging spiral 103 are shaftless screw structure as shown in Figure 2 A, and be arranged on the two ends of conversion zone 1011 and discharging section 1012 respectively, the installation of its concrete mounting structure and traditional shaftless screw structure is similar, does not repeat them here; One end of discharging spiral 103 and reaction spiral 102 is respectively arranged with the motor 104 driving helical structure rotary work.In the present embodiment, release agent can be full of in the cavity of the conversion zone 1011 of separating reaction device 10, to carry out Chemical Decomposition process to aluminium plastic composite packaging material, particularly, the rotary motion of reaction spiral 102 in conversion zone can be utilized, the aluminium plastic composite packaging material dropped into from charging aperture 10111 is sent to discharging spiral 103, in this transport process, Chemical Decomposition is carried out under the release agent effect that aluminium plastic composite packaging material can be full of in conversion zone 1011, aluminium plastic composite packaging material after Chemical Decomposition process is discharged by discharging opening 10121 by discharging spiral 103.
In the present embodiment, when carrying out separating treatment to aluminium plastic composite packaging material, release agent can be filled with in advance in the conversion zone 1011 of separator 101; Be separated through paper substrate and without the full wafer aluminium plastic composite packaging material of fragmentation, continuously can put into separator 101 from the charging aperture 10111 of conversion zone 1011; The full wafer aluminium plastic composite packaging material put in separator 101 can in conversion zone 1011, with the rotation of reaction spiral 102, namely while to the discharge end of conversion zone 1011 near an end motion of discharging spiral 103, while carry out Chemical Decomposition reaction with the release agent in conversion zone 1011, and release agent does not move and is present in conversion zone 1011 all the time together with aluminium plastic composite packaging material; Aluminium plastic composite packaging material after Chemical Decomposition, after entering into discharging section 1012, can with the rotation of the discharging spiral 103 arranged in discharging section 1012, move to the discharging opening 10121 being arranged on discharging section 1012 end, and discharge from discharging opening 10121, meanwhile, the release agent that aluminium plastic composite packaging material is carried secretly flows back in conversion zone 1011 from the gap between discharging spiral 103 and discharging section 1012 cavity; From discharging opening 10121 discharge through chemically separated aluminium plastic composite packaging material, can enter in vertical separation spin-drying device 20 as shown in Figure 1, and by vertical separation spin-drying device 20, the aluminium plastic composite packaging material after Chemical Decomposition is dried and separating treatment, obtain aluminium foil and the plastics of physical separation, its specific implementation process will elaborate below.
In the separating reaction device 10 of the present embodiment, reaction spiral 102 and discharging spiral 103 for transmitting material are shaftless screw structure, like this, shaftless screw is when making, better suppleness can be had, less demanding to spiral alignment, what the length of shaftless screw and diameter all can be done is larger, particularly for reaction spiral 102, due to reaction spiral 102 long enough that can do and diameter enough large, its material transmitted is more, and can not produce feed blocking, can effectively improve material disposal ability.Can find out, for the separator that employing in existing piece-rate system has axle spiral, owing to there being the restriction of axle helical structure, cause having axle spiral toughness poor, require high to spiral alignment, what the diameter of axle spiral and length all can not be done is larger, have a strong impact on feed separation disposal ability, and easy blockage phenomenon, and the transmission of the present embodiment piece-rate system by adopting shaftless screw structure to carry out material, can effectively improve feed separation disposal ability, and not easily produce feed blocking, thus the feed separation disposal ability of whole piece-rate system can be improved.
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, between this double-deck shell, there is space, and be heat conduction shell layer near the internal layer of the cavity of conversion zone 1011, like this, when being separated aluminium plastic composite packaging material, can in the space of this double-deck shell water flowing steam, to guarantee that the temperature of the release agent in conversion zone 1011 can remain on certain temperature range, improve the Chemical Decomposition effect of aluminium plastic composite packaging material.In practical application, whole separator 101 can be one-body molded, shell can adopt stainless steel double layer jacket structure, like this, when being separated aluminium plastic composite packaging material, just can guarantee the temperature in the cavity of separator 101 by water flowing stream mode in chuck, guarantee the separating effect of aluminium plastic composite packaging material.It will be appreciated by those skilled in the art that, double-deck shell is except can adopting stainless steel making, also other materials can be adopted to be made, such as skin can be the corrosion-resistant heat-barrier material of non-abrasive, and internal layer is the double-deck shell of wear resistant corrosion resistant Heat Conduction Material, like this, environment to external world can be avoided because being connected with water vapour in 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 above-mentioned double-deck shell, except can water flowing steam with except guaranteeing the temperature of release agent in conversion zone, also can be connected with other high-temp liquids or gas, the present embodiment is also not particularly limited.
In the separating reaction device 10 of the present embodiment, as shown in figures 2 a-c, be provided with 2 reaction spirals 102 in conversion zone 1011, in discharging section 1012, be provided with 2 discharging spirals 103 equally, and discharging spiral 103 and reaction spiral 102 are oppositely arranged.
Particularly, as shown in figures 2 a-c, in the present embodiment, 2 reaction spirals 102 are set in parallel in the cavity of conversion zone 1011,2 discharging spirals 103 respectively relatively these 2 reaction spirals 102 arrange, and the angle between reaction spiral 102 and the rotating shaft of discharging spiral 103 is 90 °, 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 arranged like this, can guarantee from conversion zone 1011 send through chemically separated material, can better to discharge with the discharging spiral 103 in discharging section 1012, and the setting of convenient reaction drive motors and discharging drive motors; Simultaneously, when separating reaction device 10 works, reaction spiral 102 is only needed to be immersed in the release agent be full of in conversion zone 1011, discharging spiral 103 does not then need to be immersed in release agent, thus avoid the material of being discharged by discharging opening to carry a large amount of release agents, thus save the use amount of release agent.Can find out, by the setting to discharging spiral 103 and reaction spiral 102 relative position, effectively can improve discharging spiral 103 and the material that reaction spiral 102 sends is processed in time, avoid material to pile up in the end of discharging spiral 103.
In the present embodiment, the cavity of conversion zone 1011 can comprise 2 U-shaped grooves 10112, and 2 U-shaped groove sides communicate with each other without intermediate cavity body wall; 2 reaction spirals 102 can be separately positioned in these 2 U-shaped grooves 10112.Can find out, the setting of 2 U-shaped grooves 10112,2 can be made to react spiral 102 and work in each groove respectively, reduce the mutual interference between 2 reaction spirals 102, improve the convenience that reaction spiral 102 is installed, and the reliability and stability of work; Meanwhile, when improving material disposal ability, also can reduce the material consumption of separator, reducing the occupation of land space of separator.
In the present embodiment, as shown in Fig. 2 A and Fig. 2 C, discharging section 1012 can comprise the first discharging section 10122 and the second discharging section 10123 of separate setting, relative response section 1011 is vertical respectively arranges for first discharging section 10122 and the second discharging section 10123, in the cavity that 2 discharging spirals 103 are separately positioned on the first discharging section 10122 and in the cavity of the second discharging section 10123, discharging spiral 103 can vertically be arranged by relative response spiral 102.It will be appreciated by those skilled in the art that, first discharging section 10122 and the second discharging section 10123 are respectively arranged with discharging opening away from the end of reacting spiral 102, so that the material of discharging with discharging spiral 103 can be discharged from the discharging opening of each discharging section respectively, like this, each discharging opening discharge through chemically separated aluminium plastic composite packaging material, vertical separation spin-drying device can be sent into respectively and carry out physical separation processes, thus improving separating reaction device 10 chemical treatment efficiency.
In the present embodiment, for improving the stability of shaftless screw work, and material better with screw, at reaction spiral 102 away from one end of charging aperture, namely near one end of discharging spiral 103, can arrange reaction drive motors; In discharging spiral 103 one end near discharging opening, namely away from one end of reaction spiral 102, discharging drive motors can be set.Like this, reaction drive motors is just arranged on the discharge end of reaction spiral, and discharging drive motors is just arranged on the discharge end of discharging spiral, effectively can improve the ability of shaftless screw transmission material.
Vertical separation spin-drying device 20
In the present embodiment, vertical separation spin-drying device 20 can dry the aluminium plastic composite packaging material after Chemical Decomposition process and separating treatment, particularly, as shown in figs. 3 a-3 c, vertical separation spin-drying device 20 in the present embodiment separation process system specifically can be vertical structure, comprise 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, between this inner barrel 2011 and outer cylinder body 2012, there is gap, and the barrel of inner barrel 2011 is provided with sieve aperture (not shown), namely the outer wall of inner barrel 2011 can be screen cloth composition, be provided with rotating shaft 202 in the cavity of inner barrel 2011, rotating shaft 202 is interrupted being provided with multiple sickle blade 2021, the plurality of sickle blade 2021 distributes from top to bottom in the shape of a spiral, 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 that feeding warehouse 203 is goed deep in rotating shaft 202 divides and is provided with endless spiral 2022, on outer cylinder body 2012, the first discharge gate 2013 is offered near the position of the lower end of cylindrical shell 201, on cylindrical shell 201, the second discharge gate 2014 running through outer cylinder body 2012 and inner barrel 2011 is offered near the position of the upper end of cylindrical shell 201, and feeding warehouse 203 is provided with the first charging aperture 2031, this first charging aperture 2031 is connected with the discharging opening 10121 on the separating reaction device 10 in Fig. 1-Fig. 2 C, and connects by conveyer belt between them, motor 204 is arranged on the upper end of cylindrical shell 201, is connected with rotating shaft 202, works for drive shaft 202.
In the present embodiment, the aluminium plastic composite packaging material after separating reaction device 10 processes directly can be transferred into vertical separation spin-drying device 20, and enters in vertical separation spin-drying device 20 by the feeding warehouse 203 arranged independent on vertical separation spin-drying device 20; Driving rotating shaft 202 to rotate by controlling motor 204, the material that enters in feeding warehouse 203 can be sucked between endless spiral 2022, and be sent in inner barrel 2011 along with endless spiral 2022; In inner barrel 2011, aluminium foil in material can brokenly under the strike effect being interrupted the sickle blade 2021 arranged be peeled off, now, considered to be worth doing the gap that will enter from the sieve aperture inner barrel 2011 barrel between inner barrel 2011 and outer cylinder body 2012 by the aluminium impacted out, and finally fall the first discharge gate 2013, discharged by the first discharge gate 2013, and plastics are generally all also the shape that full wafer or volume are larger, the second discharge gate 2014 that these plastics can be arranged from cylindrical shell 201 top is discharged, thus realizes the physical separation of plastic-aluminum.In the process of plastic-aluminum physical separation, rotating shaft 202 can remove the release agent on plastics while of rotating the centrifugal force produced, carry out except acid treatment to plastics, and the release agent deviate from can be discharged from the first discharge gate 2013 with aluminium bits, these release agents can be recovered utilization again, to reduce consumption and the wastewater treatment of release agent.
In the present embodiment, for reaching good plastic-aluminum physical separation effect, as shown in figs. 3 a and 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 spaced multiple sickle blade 2021 entirety in rotating shaft 202 is distributed in the shape of a spiral.By test, the setting of above-mentioned sickle blade 2021, the plastic-aluminum physical separation rate of the aluminium plastic composite packaging material after Chemical Decomposition can be made to reach 99.3%, and the drying degree of plastics can reach 95.5%, make the plastics after being separated directly can carry out plastic granulating, make plastic product and sell or use.
In the present embodiment, quality is considered to be worth doing for making the aluminium after plastic-aluminum physical separation, namely the purity of aluminium bits is higher, and on the barrel of inner barrel 2011, the diameter of sieve aperture can be set to 3mm-5mm, through overtesting, during vertical separation spin-drying device work, the diameter of the plastics produced in drying process generally can be greater than 5mm, therefore, when sieve diameter is in this size range, plastics effectively can be avoided to be mixed into aluminium bits, and can to guarantee that aluminium bits are all discharged from sieve aperture.
In the present embodiment, because the aluminium plastic composite packaging material entered in vertical separation spin-drying device 20 is generally large-area shape, therefore, for avoiding aluminium plastic composite packaging material twisting shaft 202 in vertical separation spin-drying 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 material drying, separation process, the winding of full wafer material countershaft 202 is avoided.
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, as shown in Figure 3A, the present embodiment feeding warehouse 203 is one-body molded with cylindrical shell 201, and now the transfer point of sickle blade 2021 and endless spiral 2022 is positioned at the charging aperture place of feeding warehouse 203; Meanwhile, the sidewall that feeding warehouse 203 is close with rotating shaft 202 also can comprise outer cylinder body, go deep into the separation of the adjustable vertical separation spin-drying device of distance of feeding warehouse by changing outer cylinder body and dry disposal ability.
In the present embodiment, vertical separation spin-drying device 20 is when to aluminum-plastic separation, can carry out being separated continuously, efficiently, aluminium bits and plastics are reclaimed respectively, can dry plastics and depickling process in the process be separated meanwhile, remove the release agent in plastics, the release agent deviate from can be discharged with aluminium bits, and recoverable, thus decrease the waste of release agent.
In the present embodiment, as shown in Fig. 1-Fig. 3 C, for processing the aluminium bits after physical separation processes, piece-rate system also can be provided with sedimentation centrifuge 30 and turbo separator 40, wherein, the charging aperture of sedimentation centrifuge 30 can connect with vertical the first discharge gate 2013 being separated spin-drying device 20, and for carrying out depickling process to the aluminium foil of discharging from vertical separation spin-drying device 20, the release agent be about to wherein removes; Turbo separator 40 is connected with the solid-phase outlet of sedimentation centrifuge 30, for removing the paper pulp that may exist in aluminium foil.Sedimentation centrifuge 30 described in the present embodiment and turbo separator 40 all can adopt traditional equipment, and its specific implementation does not repeat them here.
In the present embodiment, as shown in Fig. 1-Fig. 3 C, from the aluminium plastic composite packaging material that the charging aperture 10111 of separating reaction device 10 enters, discharging opening 10121 can be sent to by shaftless screw in separating reaction device 10, and complete in transport process and react with the Chemical Decomposition being wherein full of release agent, aluminium foil is separated from plastics, completes the Chemical Decomposition of aluminium plastic composite packaging material, directly can enter the first charging aperture 2031 of vertical separation spin-drying device 20 from discharging opening 10121 through chemically separated aluminium plastic composite packaging material, and under the rotating shaft drive of the sickle blade arranged in vertical separation spin-drying device 20, realize the physical separation of plastic-aluminum, the first discharge gate 2013 that aluminium bits after separation and plastics are separated spin-drying device 20 from vertical respectively and the second discharge gate 2014 are discharged, simultaneously, in plastic-aluminum physical separating process, release agent in aluminium plastic composite packaging material also can be discharged from the first discharge gate 2013 with aluminium bits, thus the depickling process realized plastics, from the plastics that the second discharge gate 2014 is discharged, through depickling process, directly can carry out packing process, or after also can carrying out simple rinsing process, carry out packing process, obtain final plastic product, the aluminium bits of discharging from the first discharge gate 2013 and release agent can re-start depickling process, and to be departed from from aluminium bits by release agent, obtain required aluminium bits, meanwhile, the release agent removed can re-use.
In the present embodiment, by arranging shaftless screw, aluminium plastic composite packaging material being transmitted in separating reaction device 10, effectively can improve the ability that aluminium plastic composite packaging material carries out Chemical Decomposition process; Simultaneously, directly carry out drying and being separated by vertical separation spin-drying device 20 through chemically separated aluminium plastic composite packaging material, the existing centrigugal swing dryer that individually adopts can be avoided to carry out drying and adopt centrifugal dressing machine to carry out drying rate existing for feed separation, separation rate, disposal ability is lower and waste water generation is large problem, effectively can reduce the loss of aluminium bits and release agent, and reduce process energy consumption.
For ease of having a better understanding to embodiment of the present invention technical scheme, below the embody rule of the embodiment of the present invention is described.
Fig. 4 is the structural representation of embodiment of the present invention embody rule.In the present embodiment, as shown in Figure 4, be provided with 2 separating reaction devices 10 in this piece-rate system and be vertically separated spin-drying device 20 with 2, and by sharing centrigugal swing dryer 30 and turbo separator 40, and other auxiliary equipment realize carrying out continuous print separating treatment to aluminium plastic composite packaging material, have good industrial applicibility.Particularly, as shown in Figure 4, separating reaction device 10 charging aperture is connected with formic acid holding vessel 501 and nitric acid storage tank 502, and is connected with plastic-aluminum conveyer belt 60; 2 vertical separation spin-drying devices 20 are connected with 2 separating reaction devices 10 respectively, and the first discharge gate of 2 vertical separation spin-drying devices 20 is all connected with sedimentation centrifuge 30, the plastics of discharging can be sent into potcher 702 and plastics baling press 703, to do further process to plastics by conveyer belt 701 by the second discharge gate of vertical separation spin-drying device 20; The solid-phase outlet of sedimentation centrifuge 30 is connected to turbo separator 40, and liquid-phase outlet is connected to release agent cache pool 802, and release agent cache pool 802 is connected to the charging aperture of separating reaction device 10 by water pump.Be described to the whole separation process of the present embodiment piece-rate system to aluminium plastic composite packaging material below.
(1) before aluminium plastic composite packaging material is processed, first inject release agent for separating reaction device 10, particularly, by formic acid storage tank 501 and nitric acid holding vessel 502, formic acid and salpeter solution is injected in separating reaction device 10, as release agent, and be full of the cavity of conversion zone in separating reaction device 10.Nitric acid wherein uses as 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) from plastic-aluminum conveyer belt 60, the full wafer aluminium plastic composite packaging material without fragmentation is sent into continuously the charging aperture of separating reaction device 10, control the rotary speed of reacting spiral in the transfer rate of plastic-aluminum conveyer belt 60 and separating reaction device 10 simultaneously, guarantee that the liquid-solid ratio in separating reaction device 10 between release agent and aluminium plastic composite packaging material is 30:1-15:1; Meanwhile, water vapour can be passed in the gap of the separator shell of separating reaction device 10, to guarantee that the temperature of release agent wherein maintains 40 DEG C-75 DEG C.
(3) enter separating reaction device 10 aluminium plastic composite packaging material can under the drive of reaction spiral in conversion zone while with release agent generation separating reaction, to discharging section motion, the Chemical Decomposition of aluminium plastic composite packaging material can be realized in the process; The aluminium plastic composite packaging material entering discharging section under the drive of discharging spiral, can be discharged from the discharging opening of separating reaction device 10, and enters vertical separation spin-drying device 20 from the material mouth of vertical separation spin-drying device 20.In the process, for guaranteeing the chemically separated effect of aluminium plastic composite packaging material, suitably can control the rotary speed of reacting spiral, the Chemical Decomposition of plastic-aluminum is just completed when making aluminium plastic composite packaging material enter discharging section, particularly, the time that the rotating speed that can control in the present embodiment system to react spiral makes aluminium plastic composite packaging material in release agent is 30 minutes-40 minutes.
(4) vertical separation spin-drying device 20 is entered and through chemically separated aluminium plastic composite packaging material, under rotating shaft High Rotation Speed effect in vertical separation spin-drying device 20, aluminium bits can be hit down from plastic sheeting, realize the physical separation of plastic-aluminum, depickling is carried out to plastic sheeting simultaneously and dry process, and the plastic sheeting after physical separation is discharged from the second discharge gate, aluminium bits, release agent and a small amount of plastics and paper pulp are discharged from the first discharge gate.
(5) plastic sheeting of discharging from the second discharge gate can be passed through conveyer belt 701 and is sent to plastics baling press 703, packing process is carried out to plastic sheeting, obtain the plastics after processing, and can be passed through in the process and carry out packing again after a little release agent in potcher 702 pairs of plastic sheetings carries out de-washing and process.
(6) the aluminium bits of discharging from the first discharge gate, release agent and a small amount of paper pulp and plastics can enter sedimentation centrifuge 30, carry out depickling process, the acid solution removed and release agent and a small amount of plastics can be discharged from the liquid-phase outlet of sedimentation centrifuge 30, and the aluminium bits after depickling process and a small amount of paper pulp then can be discharged from the solid-phase outlet of sedimentation centrifuge 30;
(7) from sedimentation centrifuge 30 discharge aluminium bits and a small amount of paper pulp enter turbo separator 40 carry out remove pulp processing, aluminium bits or paper pulp and recirculated water are pumped to turbo separator, paper pulp and a small amount of aluminium bits are discharged with the top of component loops water from turbo separator 40, and most of aluminium bits are discharged from turbo separator 40 bottom with recirculated water;
(8) the aluminium bits of discharging from turbo separator 40 bottom enter screw centrifuge 901 with recirculated water and carry out processed, for reducing aluminium bits moisture content further, also need to enter dryer 902 from the aluminium bits of screw centrifuge 901 discharge and carry out drying and processing, namely the aluminium bits after oven dry are the aluminium bits products after final physical separation.
(9) paper pulp of discharging from turbo separator 40 top and a small amount of aluminium bits can enter Wet type drum sieve 111 to carry out paper and is separated, the sieve aperture that paper pulp and recirculated water sieve 111 by Wet type drum drains into the slanted screen 112 that Wet type drum sieves 111 bottoms, can return recycled writing paper production technology after a small amount of paper pulp that slanted screen 112 sifts out; Sieve from Wet type drum a small amount of aluminium bits that 111 ends discharge again to enter turbo separator 40 and carry out multi-cycle separation process.
(10) release agent of discharging from sedimentation centrifuge 30 and a small amount of broken plastic warp are crossed after screen cloth 801 leaches broken plastics, enter release agent cache pool 802, and return separating reaction device 10 by water pump and recycle, a small amount of broken plastics that screen cloth 801 leaches can return to vertical separation spin-drying device 20 and carry out circular treatment.
Can find out, the present embodiment piece-rate system effectively can carry out separating treatment to aluminium plastic composite packaging material, the continuous separation technology of aluminium plastic composite packaging material process can be realized, effectively can save time loss that is reinforced, discharging, the separating reaction time can foreshorten to 35min, effectively can improve separation treatment efficiency.
In the present embodiment, piece-rate system can be provided with a control device, for controlling separating reaction device 10, vertical separation spin-drying device 20, sedimentation centrifuge 30 and each conveyer belt, pump etc., after guaranteeing each equipment operation, separating treatment can be carried out to aluminium plastic composite packaging material continuously.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (7)
1. one kind adopts that the aluminium plastic composite packaging material of shaftless screw is vertical is continuously separated treatment system, it is characterized in that, comprise separating reaction device aluminium plastic composite packaging material being carried out to Chemical Decomposition process, and the aluminium plastic composite packaging material after Chemical Decomposition is carried out to the vertical separation spin-drying device of physical separation processes, wherein:
Described separating reaction device comprises the separator with cavity, and the reaction spiral be arranged in the cavity of described separator and discharging spiral;
Described separator comprises conversion zone and discharging section, and described conversion zone is provided with charging aperture away from the feed end of described discharging section, and described discharging section is provided with discharging opening away from the discharge end of described conversion zone, and the height of described discharge end is higher than the height of feed end;
Described reaction spiral is arranged in the cavity of described conversion zone, and described discharging spiral is arranged in the cavity of described discharging section, and the relatively described reaction spiral of described discharging spiral is vertically arranged;
Described reaction spiral and discharging spiral are shaftless screw structure, and one end of described discharging spiral and reaction spiral is respectively arranged with motor;
Described vertical separation spin-drying device comprises:
Vertically disposed cylindrical shell, described cylindrical shell comprises inner barrel and the outer cylinder body of gap setting, the barrel of described inner barrel is provided with sieve aperture, and the lower end of described cylindrical shell is provided with feeding warehouse, described feeding warehouse place is provided with the first charging aperture, and described first charging aperture is connected with the discharging opening on described separating reaction device;
The position of the lower end near described cylindrical shell on described outer cylinder body offers the first discharge gate, the position of the upper end near described cylindrical shell on described cylindrical shell offers the second discharge gate running through described outer cylinder body and inner barrel, described first discharge gate is used for the aluminium foil after physical separation processes and release agent mixture to discharge, and described second discharge gate is used for the plastics after physical separation processes to discharge;
Be provided with rotating shaft in described inner barrel, described rotating shaft is interrupted being provided with multiple sickle blade, and described multiple sickle blade distribute in the shape of a spiral; Described feeding warehouse is goed deep in the lower end of described rotating shaft, and the shaft described rotating shaft being goed deep into described feeding warehouse divides and is provided with endless spiral; The upper end of described cylindrical shell is provided with the motor be connected with described rotating shaft.
2. the aluminium plastic composite packaging material of employing shaftless screw according to claim 1 is vertical is continuously separated treatment system, it is characterized in that, the shell of described conversion zone is double-deck shell;
Between described double-decker, there is space, and be heat conduction shell layer near the internal layer of the cavity of described conversion zone.
3. the aluminium plastic composite packaging material of employing shaftless screw according to claim 1 is vertical is continuously separated treatment system, and it is characterized in that, the quantity of described reaction spiral and discharging spiral is 2;
2 described reaction spiral parallel are arranged in the cavity of described conversion zone, 2 described discharging spiral relative 2 described reaction spirals settings respectively, and the angle between described reaction spiral and the rotating shaft of discharging spiral is 90 °;
Angle between the rotating shaft of 2 described discharging spirals is 120 °, is 60 ° with the angle of plumb line.
4. the aluminium plastic composite packaging material of employing shaftless screw according to claim 3 is vertical is continuously separated treatment system, it is characterized in that, the cavity of described conversion zone comprises 2 U-shaped grooves, and described 2 U-shaped grooves do not exist the cavity wall of described conversion zone mode with both centres is connected with each other logical;
2 described reaction spirals are separately positioned in described 2 U-shaped grooves.
5. the aluminium plastic composite packaging material of employing shaftless screw according to claim 1 is vertical is continuously separated treatment system, it is characterized in that, the length of described sickle blade is 10cm-15cm, and the height of described sickle blade is 5cm;
The axial angle of described sickle blade and described rotating shaft is 75 °.
6. the aluminium plastic composite packaging material of employing shaftless screw according to claim 1 is vertical is continuously separated treatment system, and it is characterized in that, the diameter of described rotating shaft is more than or equal to 20cm.
7. the aluminium plastic composite packaging material of employing shaftless screw according to claim 1 is vertical is continuously separated treatment system, it is characterized in that, also comprises:
Sedimentation centrifuge, the charging aperture of described sedimentation centrifuge connects with described vertical the first discharge gate being separated spin-drying device, for carrying out depickling process to the aluminium foil of discharging from described vertical separation spin-drying device;
Turbo separator, is connected with the solid phase discharging opening of described sedimentation centrifuge, for removing the paper pulp in aluminium foil.
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| CN112195349B (en) * | 2020-10-10 | 2022-06-24 | 江西邦展建筑模板科技有限公司 | Aluminum alloy recycling device for building solid waste |
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