CN106180156A - One specific admixture aluminium paper moulds the value-added technique of sub-prime of waste material - Google Patents
One specific admixture aluminium paper moulds the value-added technique of sub-prime of waste material Download PDFInfo
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- CN106180156A CN106180156A CN201610800727.7A CN201610800727A CN106180156A CN 106180156 A CN106180156 A CN 106180156A CN 201610800727 A CN201610800727 A CN 201610800727A CN 106180156 A CN106180156 A CN 106180156A
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- Prior art keywords
- plastic
- aluminum
- paper
- sewage
- waste
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- 239000002699 waste material Substances 0.000 title claims abstract description 100
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 94
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 77
- 239000004411 aluminium Substances 0.000 title claims abstract description 48
- 239000004033 plastic Substances 0.000 claims abstract description 149
- 229920003023 plastic Polymers 0.000 claims abstract description 149
- 239000010865 sewage Substances 0.000 claims abstract description 80
- 238000000926 separation method Methods 0.000 claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 59
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000005188 flotation Methods 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 16
- 238000005453 pelletization Methods 0.000 claims abstract description 15
- 238000005406 washing Methods 0.000 claims abstract description 13
- 239000011888 foil Substances 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- 239000002245 particle Substances 0.000 claims description 44
- 238000004140 cleaning Methods 0.000 claims description 40
- 229920001131 Pulp (paper) Polymers 0.000 claims description 33
- 239000002002 slurry Substances 0.000 claims description 27
- 238000006396 nitration reaction Methods 0.000 claims description 24
- 239000002985 plastic film Substances 0.000 claims description 23
- 229920006255 plastic film Polymers 0.000 claims description 23
- 239000010408 film Substances 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 239000005030 aluminium foil Substances 0.000 claims description 15
- 239000004902 Softening Agent Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 238000007598 dipping method Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 claims description 12
- 238000004062 sedimentation Methods 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 238000000746 purification Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 10
- 239000013528 metallic particle Substances 0.000 claims description 9
- 230000003749 cleanliness Effects 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000005294 ferromagnetic effect Effects 0.000 claims description 7
- 239000010797 grey water Substances 0.000 claims description 7
- 238000007885 magnetic separation Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 230000008093 supporting effect Effects 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 6
- 230000002457 bidirectional effect Effects 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000000855 fermentation Methods 0.000 claims description 4
- 230000004151 fermentation Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 159000000013 aluminium salts Chemical class 0.000 claims description 3
- 229910000329 aluminium sulfate Inorganic materials 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 235000011194 food seasoning agent Nutrition 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 230000020477 pH reduction Effects 0.000 claims description 3
- 238000000053 physical method Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000011091 composite packaging material Substances 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 2
- 238000009955 starching Methods 0.000 abstract description 2
- -1 separation system Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920000426 Microplastic Polymers 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B2017/001—Pretreating the materials before recovery
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The present invention discloses a specific admixture aluminium paper and moulds the value-added technique of sub-prime of waste material, including separation system, paper piece-rate system, aluminum-plastic separation system, mixes waste residue sub-prime value-added system, miscellaneous plastic sub-prime increment extruding pelletization system, Sewage Reuse System.Described separation system includes that Bales Off crushes module and two modules of automatic sorting.Described paper piece-rate system includes brokenly starching selected and two modules of washing concentrating, just can realize the paper to compound package material and separate and clean.Described aluminum-plastic separation system includes that aluminum-plastic separation, plastic foil clean and aluminium powder purifies three module compositions, it is achieved the aluminum-plastic separation of composite packaging, and is carried out the plastic foil separated.The described waste residue sub-prime value-added system that mixes includes feed flotation, drags for material and overflow and slag module, and waste residue is mainly sorted by this system further.Can realize waste residue produced in Tetra Pak waste material and removal process thereof is carried out the sorting increment of efficient high-qualityization.
Description
Technical field
The present invention relates to a kind of plastics, paper pulp, aluminum plastic film mix waste residue sub-prime value-added system method, particularly relate to one
The aluminium paper that mixes reclaiming different components in Tetra Pak is moulded the waste residue produced in waste material and removal process and is carried out resource sorting and reclaim
The process utilized.
Background technology
In recent years, along with fruit beverage, the market demand such as milk are continued to increase by the whole world, the Tetra Pak garbage such as milk carton also with
Increase, environment and resource are caused certain pressure.To the aluminum in Tetra Pak, paper, the main component such as mould and reclaim again
Utilize, be possible not only to alleviate ambient pressure, moreover it is possible to realize resources circulation reuse.And current, also do not have the aluminium paper of advanced person to mould sub-prime
Aluminum in Tetra Pak, paper, plastics can be sorted out, and mechanization degree is the highest, the most manually by value-added system thoroughly
Sorting carries out operation, therefore needs a kind of novel aluminium paper badly and moulds separation equipment, thus realizes the recovery to Tetra Pak and circulate profit again
With.
Summary of the invention
In view of at present the aluminium paper that mixes in Tetra Pak being moulded waste material isolation technics aforementioned problem faced, the mesh of the present invention
Be that design one can realize that waste residue produced in Tetra Pak waste material and removal process thereof is carried out efficient high-qualityization and sorts increasing
The aluminium paper that mixes of value moulds the value-added technique of sub-prime of waste material.
The object of the present invention is achieved like this, and a described specific admixture aluminium paper moulds the value-added technique of sub-prime of waste material, bag
Include following steps: 1) discarded Tetra Pak compound package material through unpacking, enter sorting module, remove bulk noncombustibility, ferromagnetic
After obtain waste material enter paper piece-rate system；2) in paper piece-rate system, waste material crosses washing away of water and quilt at broken pulp grinder back warp
After drenching, entering two-stage nitration paper-plastic sorter, making the papery composition in composite in two-stage nitration paper-plastic sorter is paper pulp shape,
And paper pulp is after water conservancy diversion collects water channel entrance slurry storage tank, goes further slightly to purify, eventually passes Microfilter, after screw rod squeezing machine
Carry out pulp recovery recycling；3) the plastic-aluminum hybrid materials separated from two-stage nitration paper-plastic sorter then enter aluminum-plastic separation system
System, the aluminum-plastic separation way in described aluminum-plastic separation system has softening agent method and dipping by lye method, both of which so that
Aluminum composition on Tetra Pak composite is separated from plastic foil, and the aluminum sorted out is carried out back after cleaning-drying
With, the waste plastic film separated then enters miscellaneous plastic sub-prime increment extruding and pelletizing process system after over cleaning is extracted to be carried out
Extruding pelletization；4) during paper separation process and aluminum-plastic separation produce containing inorganic dust particle, broken plastic bottle
Metallic particles and the waste residue of tiny plastic sheeting particle that lid particle, part particle diameter are less then enter and mix the increment of waste residue sub-prime
Process system, by flotation, drags for material and overflow operation, carries out the broken plastic film stock in waste residue further purifying utilization, from
And improve the use value of waste material；5) during above-mentioned whole process system, produced technique waste water enters sewage and returns
Carrying out physical method purification by system, recycle-water is mainly used in washing away and aluminum-plastic separation system of waste material in paper piece-rate system
In the waste plastic film after separating is carried out；
The sorting step of described sorting module is: the square block that iron wire is tied up is discarded composite packaging and pushed into cylinder through fork truck
Bale opener, the spiral in bale opener stirs and carries out unpacking the material scattering with entire bundle, then going out from bale opener under the effect of hook
Material mouth is fallen on vibration slanted screen, screens out little solid sundries, and is further uniformly broken up by material, meanwhile, on a moving belt
Supporting manually picking out the iron wire of PET bottle and lashing materials, material subsequently enters magnetic separation and aidr bells blast system, removes out in material
Ferromagnetic and heavy foreign material after, material enter paper piece-rate system；
The separating step of described paper piece-rate system is: material breaks pulp grinder screw propulsion in rotary drum waterpower, during this
Along with sluicing so that the papery composition in composite drenches into paper pulp, then enter two-period form slurry and mould seperator；Liquid
The disposal ditches that the paper pulp of state shape moulds the water channel on seperator and plant floor layout along slurry enters slurry storage tank, and disposal ditches is arranged
There is grid, with the bigger impurity of filtration fraction particle diameter, thus can ensure that the paper pulp of certain purity enters slurry storage tank, in slurry storage tank
It is higher that paper pulp obtains purity through single-action, bounce screen, the first and second slurry sediment pools and up-flow pressurized screen, and impurity is less, purity
Can reach the paper pulp of more than 98%, then enter high-speed pulp washer, paper fiber is extracted, at a high speed from water by screw rod squeezing machine
The pulp washing water Microfilter that wash engine produces reclaims paper pulp further；Above-mentioned mould seperator out plastic-aluminum combined from two-period form slurry
Material enters in next road aluminum-plastic separation system after extracting pressure bag；Waste water owing to producing during this is not directed to chemistry
Auxiliary agent, so carrying out reuse through process sectionals such as easy precipitation, air supportings: after precipitation sewage can direct reuse in rotary drum water
Power breaks pulp grinder；Water after air-flotation process can be used for high-speed pulp washer, Microfilter；
In described aluminum-plastic separation system, softening agent aluminum-plastic separation method enforcement step is: aluminium plastic composite material initially enters softening agent
Retort, by the bidirectional rotation screw rod in tank, makes aluminium plastic composite material constantly and softening agent haptoreaction, thus produces softening
Peel off；Then the aluminium plastic material after mutually peeling off is sent in aluminum plastic sorting machine through two-way auger, the most constantly
Being crushed by aluminium foil, the aluminium foil after crushing is attached to PE film surface, makes after the high speed of aluminum plastic sorting machine is washed away and got rid of de-effect
Obtaining broken aluminium foil to come off and rinse water formation aluminum bits liquid, aluminum bits liquid enters aluminium powder purification system；In aluminium powder purification system, through overwinding
Flow separation removes the removal of impurity, spiral concentration extraction aluminium powder, eventually passes vacuum drying and obtains cleaning aluminium powder；And clean after plastics thin
Film then obtains regenerated plastics for thin film granulating system after extracting pressure bag；
The dipping by lye aluminum-plastic separation step of described aluminum-plastic separation system is: first aluminium plastic composite material goes after dipping by lye
Except major part aluminium foil, aluminium foil is directly stayed in fermentation vat with the form of aluminium salt after dipping by lye drains, thus is realized plastic-aluminum
Separate；The waste plastics film then soaked sends into film cleaning system after draining, through unpacking operation, and giving up after draining
Plastic film is sent to clean drier through Bales Off and once cleans, and a cleaning sullage enters a sump, once cleans and gets rid of
Dry rear waste plastic film is fed into two grades of service sinks through wind and carries out secondary cleaning, and two grades of cleaning sullages enter No. two sumps, pass through
Material film after two road service sinks clean is salvaged into drier at service sink end by marine salvage equipment, then carries out three grades of cleanings and carries out
Cleaning for three times, three grades of cleaning sullages enter No. two sumps, and wash away on waste plastics film such as the method is remaining containing aluminum alkali
Liquid, the waste plastic film after three times are cleaned has been substantially free of aluminum composition, through extracting, has been fed into waste plastics pelletize through hot blast
System, dehydration rate, up to more than 95%, can be directly used for pelletize；Cleaning process produces containing inorganic dust particle, broken
The waste residue of plastic bottle closure particle, the less metallic particles of part particle diameter and tiny plastic sheeting particle then by sewage, clear
The outside deslagging of auger screw rod bottom wash pool, is conveyed into mixing waste residue sub-prime increment process system.
Present invention additionally comprises and mix waste residue sub-prime value-added system, the described processing step mixing waste residue sub-prime value-added system
For: produce during paper separation process and aluminum-plastic separation containing inorganic dust particle, broken plastic bottle closure particle, portion
Metallic particles that gradation footpath is less and the waste residue of tiny plastic sheeting particle, by flotation, drag for the operations such as material and overflow, can enter
Broken plastic film stock in waste residue is carried out purifying utilization by one step, thus improves the use value of waste material.
Described waste plastics granulating system uses miscellaneous plastic sub-prime increment extruding and pelletizing process system, and this granulating system is
Syllogic: in one section of extruder, by through extracting, after the waste plastics sent here of hot-air seasoning wind melts, unsettled enters two
In section extruder, two-stage nitration cross-head is provided with drainage screen, removes the impurity particle in plastic melt, then by plastics stream
Body discharges into three sections of extruders, carries out extruding pelletization.
The sewage of the generation on the sewage produced on above-mentioned paper defiber and aluminum-plastic separation line separately carries out processing and returning
With；The sewage that on paper defiber, pulp liquor squeezing machine and Microfilter produce, is directly discharged in collecting-tank, can be according to concrete water quality
Situation carries out clear water supply to collecting-tank；By pump, sewage in collecting-tank is sent into sedimentation tank to precipitate, the dirt that precipitation produces
Mud is transported to sludge-tank by dredge pump, and the mud that sludge-tank produces through overvoltage mud machine compression delivers to the brickmaking of brickmaking factory, pressure
The sewage that contracting produces comes back to collecting-tank；Part water after sedimentation tank precipitates can direct reuse water in paper yarn technique
Power wash engine；Part water is sent into flotation tank and is carried out after-treatment, and after flotation tank processes, sewage substantially conforms to discharge standard, can
Sorting unit equipment in paper yarn technique, in whole sewage circulating treating system, the cyclic utilization rate of water is up to 97%；Plastic-aluminum divides
A sewage part for generation on off-line comes from a sump, and one section of cleaning sullage alkalescence is higher, and another part is from two
Number sump two-stage nitration sewage, for alkalescence sewage, due to one section and two-stage nitration sewage cleanliness factor difference relatively big, sewage disposal system is adopted
By physical treatment and chemical treatment two-period form, in one section of physical treatment, one section of sewage and two-stage nitration sewage parallel processing: pass through microfiltration
Machine remove plastics waste residue laggard enter sedimentation tank, the feeding brickmaking of waste residue that in sedimentation tank, sewage produces after filter press effect
Factory, the sewage of generation sends into cistern；Owing to one section of sewage cleanliness factor is relatively low, the sewage after filter press needs part
Clear water feeds, and two-stage nitration sewage cleanliness factor is high compared with one section, and the water after filter press can be back to plastic-aluminum line, and part is used for
The clear water supply of one section of sewage；One section of sewage is collected rear section by cistern and is back to use plastic-aluminum line one-level cleaning equipment, and part is used
In the immersion of raw material film, remaining small part enters chemical treatment stage, through hydrolysis acidification, catalytic oxidation, secondary precipitation effect,
Water body major part direct reuse after final process, the outer row of few part, by Fractional Collections, segment processing, segmentation reuse, originally
Sewage disposal system water circulation use rate is up to 97%.
A described specific admixture aluminium paper moulds the value-added technique of sub-prime of waste material, specifically includes that separation system, paper segregative line
System, aluminum-plastic separation system, mix waste residue sub-prime value-added system, miscellaneous plastic sub-prime increment extruding pelletization system, reusing sewage system
System.
Described separation system includes that Bales Off crushes module and two modules of automatic sorting.Through iron wire tie up discarded compound
Packaging (soft drink is packed, and presses construction materials contract film), square-shaped, through the feed opening platform of carrying fork truck to bale opener, push into rolling
Cylinder bale opener；By roll bale opener in helical blade unpack propelling movement, by the material scattering of entire bundle, which solve tradition
Technique uses the drawback manually unpacked, and has energy-conservation, efficient, safe advantage.Material after breaing up enters automatic sorting module.
Material falls the vibration slanted screen below discharging opening via the discharging opening of bale opener, by slanted screen, is further uniformly beaten by material
Dissipate, and screen out little solid sundries, the most supporting manually, pick out the iron wire of PET bottle and lashing materials；Subsequently, material is through passing
Band is sent to be sent to down one magnetic separation and selecting crude drugs with winnower operation；By magnetic, pneumatic separator, the ferromagnetic in material can be removed and heavy is miscellaneous
Thing, by above-mentioned operation, material enters paper piece-rate system.
Described paper piece-rate system includes brokenly starching selected and two modules of washing concentrating, just can realize composite packaging material
The paper of material separates and cleans, and by paper separating from aluminium paper plastic composite materials in the way of paper pulp, and process is without secondary
Polluting, the water of cleaning can realize efficient segment processing reuse by Sewage Reuse System, greatly reduce the consumption of water, it is achieved joint
The target that can reduce discharging；The paper pulp separated enter lower one paper pulp go slightly purify, clean compression and the operation such as extract, and be left
Aluminum plastic film then enter aluminum-plastic separation system.
Described aluminum-plastic separation system includes that aluminum-plastic separation, plastic foil clean and aluminium powder purifies three module compositions, it is achieved
The aluminum-plastic separation of composite packaging, and the plastic foil separated is carried out, the aluminum separated is carried out purification and is dried, make
Obtain metallic aluminium and plastics can distinguish recycling utilization.
The described waste residue sub-prime value-added system that mixes includes feed flotation, drags for material and overflow and slag module, and this system is main
It is to contain produced by paper piece-rate system, paper pulp purification process and in aluminum-plastic separation system, plastic foil cleaning process
There is an inorganic dust particle, metallic particles that broken plastic bottle closure particle, part particle diameter are less and tiny plastic sheeting particle
Waste residue sort further, further the broken plastic film stock in waste residue extracted and utilized, thus improving waste material
Use value.
Described miscellaneous plastic sub-prime increment granulating system is mainly by continuous melt filtration pelletize and double rank pelletize, real
Existing composite packaging plastic sheeting pelletize continuous, efficient.
Described Sewage Reuse System includes physical cleaning and two modules of biological treatment, use simple, ripe, stable,
Practical, economical and practical process technique, had both ensured treatment effect, had reduced investment outlay again and operational and administrative expenses, and design discharge mark
Standard reaches the first discharge standard of " integrated wastewater discharge standard " GB8978 1996, and this discharge water can be directly used for production line
Recycle-water reaches industrial water standard, and sewage recycling rate of waterused is up to 97%.
Case study on implementation: Xiamen land-sea Environmental Protection Co.Ltd., technological feasibility is high, the production capacity in workshop and Related product
Parameter is specific as follows: the production capacity in workshop: recycled plastic: 60t/ days；Paper pulp: 24t/ days (weight in wet base)；Aluminium powder: 10t/ days；Product phase
Pass design parameter and actual parameter:
| Sequence number | Project | Set index | It is actually achieved situation |
| 1 | Paper separation production line output | 60T/D | 63T/D |
| 2 | Aluminum-plastic separation production line output | 100T/D | 102T/D |
| 3 | The miscellaneous point of regenerated paper pulp (30*50cm) | 20 | 20 |
| 4 | Regenerated paper pulp beating degree | Not higher than raw material paper 5 | 4.2 |
| 5 | Regenerated paper pulp whiteness | Not higher than raw material paper 5 | 3.8 |
| 6 | Regenerated plastics film aluminum content | ≤ 0.05% | ≤ 0.05% |
| 7 | Regenerated plastics film amount in slurry | ≤ 0.5% | ≤ 0.3% |
| 8 | Recycled plastic granules ash | ≤ 3% | ≤ 2.5% |
| 9 | Recycled plastic granules density | ≤0.98 | ≤0.96 |
| 10 | Secondary aluminium bits metal aluminum content | ≥78 | ≥78 |
| 11 | Secondary aluminium bits aluminium element content | ≥78 | ≥99 |
Accompanying drawing explanation
Fig. 1 is the main process system diagram that the present invention designs.
Fig. 2 is the sorting in Fig. 1 and paper separating technology system diagram.
Fig. 3-1 is aluminum-plastic separation (softening agent method) flow sheet in Fig. 1.
Fig. 3-2 is aluminum-plastic separation (dipping by lye method) flow sheet in Fig. 1.
Fig. 4 be in Fig. 1 mix waste residue sub-prime increment flow sheet.
Fig. 5 is the miscellaneous plastic sub-prime increment extruding and pelletizing process system diagram in Fig. 1.
Fig. 6-1 is the paper separation Sewage Reuse System figure in Fig. 1.
Fig. 6-2 is the aluminum-plastic separation Sewage Reuse System figure in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, the every other enforcement that those of ordinary skill in the art are obtained under not having creative work premise
Example, broadly falls into the scope of protection of the invention.
Fig. 1: main process system.Discarded Tetra Pak compound package material, through unpacking, enters sorting module, removes big
The rear entrance paper piece-rate systems such as block thing, ferromagnetic, described sorting module main device has magnetic separation, the selecting crude drugs with winnower, magnetic separation, selecting crude drugs with winnower to be
Prior art；In paper piece-rate system, nucleus equipment is that rotary drum waterpower breaks pulp grinder, and this equipment our unit the most successfully applies for specially
Profit (application number: 201220389160.6).After waste material is crossed washing away of water at broken pulp grinder back warp and drenched, film will be expected by auger
Sending into two-stage nitration slurry and mould seperator, seperator gets rid of de-effect mainly by high speed rotating makes paper separate, and this equipment our unit is
Successfully applying for a patent (application number: 201220382833.5), making the papery composition in composite in separator is paper pulp
Shape, and paper pulp is after water conservancy diversion collects water channel entrance slurry storage tank, goes further slightly to purify, eventually passes Microfilter, screw rod is extracted
Machines etc. carry out pulp recovery recycling.The plastic-aluminum hybrid materials separated from two-stage nitration paper-plastic sorter then enter aluminum-plastic separation
System, nucleus equipment is bidirectional rotary type retort and fermentation vat, and wherein bidirectional rotary type retort our unit the most successfully applies for
Patent (application number: 201220599505.0).And the present invention design relate to two kinds of aluminum-plastic separation ways, be respectively softening agent method and
Dipping by lye method, both of which, so that the aluminum composition on Tetra Pak composite is separated from plastic foil, sorts
Aluminum out carries out reuse after cleaning-drying, and the waste plastic film separated then enters miscellaneous plastic after over cleaning is extracted
Sub-prime increment extruding and pelletizing process system carries out extruding pelletization, and described prilling system core equipment is that three-stage type list screw rod is made
Grain equipment.During paper separation process and aluminum-plastic separation produce containing inorganic dust particle, broken plastic bottle closure is broken
Metallic particles and the waste residue of tiny plastic sheeting particle that grain, part particle diameter are less then enter and mix waste residue sub-prime increment equipment
Carry out recycling (this equipment can use prior art, it is possible to uses the patent of the application same period), by flotation, drag for material and overflow
The operations such as stream, carry out the broken plastic film stock in waste residue further purifying utilizing, thus improve the use value of waste material.Upper
During the whole process system stated, produced technique waste water enters Sewage Reuse System and carries out physical method purification, reuse
Water is mainly used in washing away and in aluminum-plastic separation system entering the waste plastic film after separating of waste material in paper piece-rate system
Row cleans.
Fig. 2: sorting and paper separating technology system.The square block that iron wire is tied up discard composite packaging through fork truck push into
Cylinder bale opener, the spiral in bale opener stirs and carries out unpacking the material scattering with entire bundle, then from bale opener under the effect of hook
Discharging opening fall vibration slanted screen on, screen out little solid sundries, and further material uniformly broken up, meanwhile, transmission
Supporting on band manually picking out the iron wire of PET bottle and lashing materials, material subsequently enters magnetic separation and aidr bells blast system, magnetic separation and wind
Electing prior art as, after removing out the ferromagnetic in material and heavy foreign material, material enters paper piece-rate system.Separate at paper
In system, material breaks pulp grinder screw propulsion in rotary drum waterpower, along with sluicing during this so that in composite
Papery composition drench into paper pulp state, then enter two-period form slurry and mould seperator, seperator mainly application high speed rotating gets rid of de-
Principle carry out slurry and mould separation, this equipment our unit the most successfully applies for a patent (application number: 201220389160.6).Liquid state
The disposal ditches that paper pulp moulds the water channel on seperator and plant floor layout along slurry enters slurry storage tank.Lattice it are provided with on disposal ditches
Grid, with the bigger impurity of filtration fraction particle diameter, thus can ensure that the paper pulp of certain purity enters slurry storage tank.Paper pulp in slurry storage tank
Through single-action, bounce screen, it is higher that the first and second slurry sediment pools and up-flow pressurized screen obtain purity, and impurity is less, purity up to
To the paper pulp of more than 98%, then entering high-speed pulp washer, paper fiber is extracted from water by screw rod squeezing machine, high speed pulp washing
The pulp washing water Microfilter that machine produces reclaims paper pulp further.And mould seperator aluminium plastic composite material warp out from two-period form slurry
Cross and enter in next road aluminum-plastic separation system after extracting pressure bag.Waste water owing to producing during this is not directed to chemical assistant
Deng, so carrying out reuse through process sectionals such as easy precipitation, air supportings: after precipitation sewage can direct reuse in rotary drum waterpower
Broken pulp grinder；Water after air-flotation process can be used for high-speed pulp washer, Microfilter.
Fig. 3-1: aluminum-plastic separation (softening agent method) process system.Aluminium plastic composite material initially enters softening agent retort, logical
Cross the bidirectional rotation screw rod in tank, make aluminium plastic composite material constantly and softening agent haptoreaction, thus produce softening and peel off, this mistake
Journey lasts about greatly half an hour；Then the aluminium plastic material after mutually peeling off is sent in aluminum plastic sorting machine through two-way auger, at machine
Constantly aluminium foil is crushed under tool effect, broken after aluminium foil be attached to PE film surface, the high speed through aluminum plastic sorting machine wash away and
Making broken aluminium foil come off after getting rid of de-effect and rinse water forms aluminum bits liquid, aluminum bits liquid enters aluminium powder purification system, mainly by aluminum liquid
Buffer Pool, cyclone separator, aluminium powder drying equipment etc. form, and in aluminium powder purification system, go the removal of impurity through cyclonic separation, spiral shell
Rotation concentration extraction aluminium powder, eventually passes vacuum drying and obtains cleaning aluminium powder；Plastic sheeting after Qing Xiing is then through extracting pressure bag
Regenerated plastics are obtained afterwards for thin film granulating system.
Fig. 3-2: aluminum-plastic separation (dipping by lye method) process system.Aluminium plastic composite material is first with after dipping by lye about 50h
The most removable major part aluminium foil, unlike softening agent method, aluminium foil here is direct with aluminium salt after dipping by lye drains
Form stay in fermentation vat, thus realize aluminum-plastic separation.The waste plastics film then soaked sends into thin film after draining
Purging system, purging system is syllogic, by drip washing, embathes, gets rid of the operation such as de-and reach to clean target, and wherein main body is cleaned and set
For using prior art, it is possible to use the patent of the application same period.Through unpacking operation, the waste plastic film after draining passes through Bales Off
Deliver to clean drier once clean (cleaning sullage enters a sump), once clean waste plastic film warp after drying
Cross wind to be fed into two grades of service sinks and carry out secondary cleaning (two grades of cleaning sullages enter No. two sumps), clear through two road service sinks
Material film after washing is salvaged into drier at service sink end by marine salvage equipment, then carries out three grades of cleanings and carries out three cleanings (three
Level cleaning sullage enters No. two sumps), so wash away on waste plastics film is remaining containing aluminum alkali liquor.After three times are cleaned
Waste plastic film be substantially free of aluminum composition, through extracting, hot blast wind is fed into waste plastics granulating system, dehydration rate up to
More than 95%, can be directly used for pelletize.Cleaning process produces containing inorganic dust particle, broken plastic bottle closure particle,
Metallic particles and the waste residue of tiny plastic sheeting particle that part particle diameter is less then pass through the auger spiral shell bottom sewage, service sink
The outside deslagging of bar, is conveyed into mixing waste residue sub-prime increment process system.
Fig. 4: mix waste residue sub-prime increment process system.Produce during paper separation process and aluminum-plastic separation contains
Inorganic dust particle, metallic particles that broken plastic bottle closure particle, part particle diameter are less and tiny plastic sheeting particle
Waste residue, by flotation, drags for the operations such as material and overflow, can carry out the broken plastic film stock in waste residue further purifying utilization, from
And improve the use value of waste material.
Fig. 5: miscellaneous plastic sub-prime increment extruding and pelletizing process system.This granulating system is syllogic: at one section of extruder
In, by through extracting, after the waste plastics sent here of hot-air seasoning wind melts, unsettled enter in two-stage nitration extruder, squeeze at two-stage nitration
Go out machine head and be provided with drainage screen, remove the impurity particle in plastic melt, then plastic liquid is discharged into three sections of extruders, enters
Row extruding pelletization.
The sewage of the generation on the sewage produced on paper defiber and aluminum-plastic separation line separately carries out processing and reuse.Figure
6-1 is the sewage that on paper defiber, pulp liquor squeezing machine and Microfilter produce, and being directly discharged in collecting-tank 1# (can be according to concrete
Water quality condition carries out clear water supply)；By pump, sewage in collecting-tank is sent into sedimentation tank 1# to precipitate, the mud that precipitation produces
Being transported to sludge-tank by dredge pump, the mud that sludge-tank produces through overvoltage mud machine compression delivers to the brickmaking of brickmaking factory, compression
The sewage produced comes back to collecting-tank 1#；Part water after sedimentation tank precipitates can direct reuse water in paper yarn technique
Power wash engine (referred to here as one section of recycle-water)；Part water is sent into flotation tank and is carried out after-treatment, sewage after flotation tank processes
Substantially conform to discharge standard, can be used for paper yarn technique sorts unit equipment, the circulation of water in whole sewage circulating treating system
Utilization rate is up to 97%.Fig. 6-2 is that last point of aluminum-plastic separation line comes from a sump (one section of cleaning, alkalescence), another portion
Divide from No. two sumps (two-stage nitration sewage, alkalescence), owing to one section relatively big, so the present invention adopts with two-stage nitration sewage cleanliness factor difference
With segment processing, segmentation reuse.Sewage disposal system uses physical treatment and chemical treatment two-period form, in one section of physical treatment,
One section of sewage and two-stage nitration sewage parallel processing: by Microfilter remove plastics waste residue laggard enter sedimentation tank, sewage warp in sedimentation tank
Brickmaking factory sent into by the waste residue produced after crossing filter press effect, and the sewage of generation sends into cistern；Due to one section of sewage cleaning
Spending relatively low, the sewage after filter press needs part clear water to feed, and two-stage nitration sewage cleanliness factor is high compared with one section, through sheet frame
Water after pressure filter can be back to plastic-aluminum line, and part is for the clear water supply of one section of sewage；One section of sewage is received by cistern 1#
Collection rear section is back to use plastic-aluminum line one-level cleaning equipment, and part is for the immersion (cleaning sullage is alkalescence) of raw material film, remaining few
It is partially into chemical treatment stage, the big portion of water body after hydrolysis acidification, catalytic oxidation, secondary precipitation effect, final process
Dividing direct reuse, the outer row of few part, this sewage disposal system water circulation use rate is up to 97%.
Claims (4)
1. a specific admixture aluminium paper moulds the value-added technique of sub-prime of waste material, comprises the steps: 1) discarded Tetra Pak composite packaging
Material, through unpacking, enters sorting module, obtains waste material and enter paper piece-rate system after removing bulk noncombustibility, ferromagnetic；2) at paper
Mould in piece-rate system, after waste material is crossed washing away of water at broken pulp grinder back warp and drenched, enter two-stage nitration paper-plastic sorter, at two-stage nitration paper
Making the papery composition in composite in moulding separator is paper pulp shape, and paper pulp is collected water channel through water conservancy diversion and entered slurry storage tank
After, go further slightly to purify, eventually pass Microfilter, after screw rod squeezing machine, carry out pulp recovery recycling；3) from two-stage nitration paper
The plastic-aluminum hybrid materials that separator is separated then enter aluminum-plastic separation system, and the aluminum-plastic separation in described aluminum-plastic separation system is done
Method has softening agent method and dipping by lye method, and both of which is so that the aluminum composition on Tetra Pak composite is from plastic foil
Separating, the aluminum sorted out carries out reuse after cleaning-drying, and the waste plastic film separated is after over cleaning is extracted
Then enter miscellaneous plastic sub-prime increment extruding and pelletizing process system and carry out extruding pelletization；4) at paper separation process and aluminum-plastic separation
During produce containing inorganic dust particle, metallic particles that broken plastic bottle closure particle, part particle diameter are less and tiny
The waste residue of plastic sheeting particle then enter and mix waste residue sub-prime increment process system, by flotation, drag for material and overflow operation, enter
Broken plastic film stock in waste residue is carried out purifying utilization by one step, thus improves the use value of waste material；5) above-mentioned whole
During process system, produced technique waste water enters Sewage Reuse System and carries out physical method purification, and recycle-water is mainly used
In paper piece-rate system, waste material washes away and in aluminum-plastic separation system is carried out the waste plastic film after separating；
The sorting step of described sorting module is: the square block that iron wire is tied up is discarded composite packaging and pushed into cylinder through fork truck
Bale opener, the spiral in bale opener stirs and carries out unpacking the material scattering with entire bundle, then going out from bale opener under the effect of hook
Material mouth is fallen on vibration slanted screen, screens out little solid sundries, and is further uniformly broken up by material, meanwhile, on a moving belt
Supporting manually picking out the iron wire of PET bottle and lashing materials, material subsequently enters magnetic separation and aidr bells blast system, removes out in material
Ferromagnetic and heavy foreign material after, material enter paper piece-rate system；
The separating step of described paper piece-rate system is: material breaks pulp grinder screw propulsion in rotary drum waterpower, during this
Along with sluicing so that the papery composition in composite drenches into paper pulp, then enter two-period form slurry and mould seperator；Liquid
The disposal ditches that the paper pulp of state shape moulds the water channel on seperator and plant floor layout along slurry enters slurry storage tank, and disposal ditches is arranged
There is grid, with the bigger impurity of filtration fraction particle diameter, thus can ensure that the paper pulp of certain purity enters slurry storage tank, in slurry storage tank
It is higher that paper pulp obtains purity through single-action, bounce screen, the first and second slurry sediment pools and up-flow pressurized screen, and impurity is less, purity
Can reach the paper pulp of more than 98%, then enter high-speed pulp washer, paper fiber is extracted, at a high speed from water by screw rod squeezing machine
The pulp washing water Microfilter that wash engine produces reclaims paper pulp further；Above-mentioned mould seperator out plastic-aluminum combined from two-period form slurry
Material enters in next road aluminum-plastic separation system after extracting pressure bag；Waste water owing to producing during this is not directed to chemistry
Auxiliary agent, so carrying out reuse through process sectionals such as easy precipitation, air supportings: after precipitation sewage can direct reuse in rotary drum water
Power breaks pulp grinder；Water after air-flotation process can be used for high-speed pulp washer, Microfilter；
In described aluminum-plastic separation system, softening agent aluminum-plastic separation method enforcement step is: aluminium plastic composite material initially enters softening agent
Retort, by the bidirectional rotation screw rod in tank, makes aluminium plastic composite material constantly and softening agent haptoreaction, thus produces softening
Peel off；Then the aluminium plastic material after mutually peeling off is sent in aluminum plastic sorting machine through two-way auger, the most constantly
Being crushed by aluminium foil, the aluminium foil after crushing is attached to PE film surface, makes after the high speed of aluminum plastic sorting machine is washed away and got rid of de-effect
Obtaining broken aluminium foil to come off and rinse water formation aluminum bits liquid, aluminum bits liquid enters aluminium powder purification system；In aluminium powder purification system, through overwinding
Flow separation removes the removal of impurity, spiral concentration extraction aluminium powder, eventually passes vacuum drying and obtains cleaning aluminium powder；And clean after plastics thin
Film then obtains regenerated plastics for thin film granulating system after extracting pressure bag；
The dipping by lye aluminum-plastic separation step of described aluminum-plastic separation system is: first aluminium plastic composite material goes after dipping by lye
Except major part aluminium foil, aluminium foil is directly stayed in fermentation vat with the form of aluminium salt after dipping by lye drains, thus is realized plastic-aluminum
Separate；The waste plastics film then soaked sends into film cleaning system after draining, through unpacking operation, and giving up after draining
Plastic film is sent to clean drier through Bales Off and once cleans, and a cleaning sullage enters a sump, once cleans and gets rid of
Dry rear waste plastic film is fed into two grades of service sinks through wind and carries out secondary cleaning, and two grades of cleaning sullages enter No. two sumps, pass through
Material film after two road service sinks clean is salvaged into drier at service sink end by marine salvage equipment, then carries out three grades of cleanings and carries out
Cleaning for three times, three grades of cleaning sullages enter No. two sumps, and wash away on waste plastics film such as the method is remaining containing aluminum alkali
Liquid, the waste plastic film after three times are cleaned has been substantially free of aluminum composition, through extracting, has been fed into waste plastics pelletize through hot blast
System, dehydration rate, up to more than 95%, can be directly used for pelletize；Cleaning process produces containing inorganic dust particle, broken
The waste residue of plastic bottle closure particle, the less metallic particles of part particle diameter and tiny plastic sheeting particle then by sewage, clear
The outside deslagging of auger screw rod bottom wash pool, is conveyed into mixing waste residue sub-prime increment process system.
A specific admixture aluminium paper the most according to claim 1 moulds the value-added technique of sub-prime of waste material, it is characterised in that: also include
Mixing waste residue sub-prime value-added system, the described processing step mixing waste residue sub-prime value-added system is: in paper separation process and
Produce during aluminum-plastic separation containing inorganic dust particle, broken plastic bottle closure particle, the metal that part particle diameter is less
Grain and the waste residue of tiny plastic sheeting particle, by flotation, drag for the operations such as material and overflow, can mould broken in waste residue further
Material film material carries out purifying utilization, thus improves the use value of waste material.
A specific admixture aluminium paper the most according to claim 1 moulds the value-added technique of sub-prime of waste material, it is characterised in that: described
Waste plastics granulating system uses miscellaneous plastic sub-prime increment extruding and pelletizing process system, and this granulating system is syllogic: at one section
In extruder, by through extracting, after the waste plastics sent here of hot-air seasoning wind melts, unsettled enter in two-stage nitration extruder,
Two-stage nitration cross-head is provided with drainage screen, removes the impurity particle in plastic melt, then plastic liquid discharges into three sections and squeezes
Go out machine, carry out extruding pelletization.
4. the value-added technique of sub-prime of waste material is moulded according to the specific admixture aluminium paper described in claim 1 or 2 or 3, it is characterised in that:
The sewage of the generation on the sewage produced on paper defiber and aluminum-plastic separation line separately carries out processing and reuse；Paper defiber
The sewage that upper pulp liquor squeezing machine and Microfilter produce, is directly discharged in collecting-tank, can be according to concrete water quality condition to collecting-tank
Carry out clear water supply；By pump, sewage in collecting-tank being sent into sedimentation tank to precipitate, the mud that precipitation produces passes through dredge pump
Being transported to sludge-tank, sludge-tank delivers to the brickmaking of brickmaking factory, the sewage that compression produces through the mud that overvoltage mud machine compression produces
Come back to collecting-tank；Part water after sedimentation tank precipitates can direct reuse waterpower wash engine in paper yarn technique；Portion
Dividing water to send into flotation tank and carry out after-treatment, after flotation tank processes, sewage substantially conforms to discharge standard, can be used for paper yarn work
Sorting unit equipment in skill, in whole sewage circulating treating system, the cyclic utilization rate of water is up to 97%；Product on aluminum-plastic separation line
A raw sewage part comes from a sump, and one section of cleaning sullage alkalescence is higher, and another part is from No. two sumps two
Section sewage, for alkalescence sewage, owing to one section relatively big with two-stage nitration sewage cleanliness factor difference, sewage disposal system uses physical treatment
With chemical treatment two-period form, in one section of physical treatment, one section of sewage and two-stage nitration sewage parallel processing: remove plastics by Microfilter
Entering sedimentation tank after waste residue, brickmaking factory sent into by the waste residue that in sedimentation tank, sewage produces after filter press effect, generation
Sewage sends into cistern；Owing to one section of sewage cleanliness factor is relatively low, the sewage after filter press needs part clear water to feed,
Two-stage nitration sewage cleanliness factor is high compared with one section, and the water after filter press can be back to plastic-aluminum line, and part is for one section of sewage
Clear water supply；One section of sewage is collected rear section by cistern and is back to use plastic-aluminum line one-level cleaning equipment, and part is for raw material film
Immersion, remaining small part enters chemical treatment stage, through hydrolysis acidification, catalytic oxidation, secondary precipitation effect, finally processes
After water body major part direct reuse, the outer row of few part, by Fractional Collections, segment processing, segmentation reuse, this sewage disposal
System water circulation use rate is up to 97%.
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