CN104532003A - Method for recovering and using aluminum-plastic composite film - Google Patents
Method for recovering and using aluminum-plastic composite film Download PDFInfo
- Publication number
- CN104532003A CN104532003A CN201410726759.8A CN201410726759A CN104532003A CN 104532003 A CN104532003 A CN 104532003A CN 201410726759 A CN201410726759 A CN 201410726759A CN 104532003 A CN104532003 A CN 104532003A
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- plastic composite
- composite membrane
- aluminum
- oil
- oil gas
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a method for recovering and using an aluminum-plastic composite film, which comprises the following steps: 1)crushing waste and old aluminum-plastic composite films, introducing in a bunker by a conveying system; 2)introducing the crushed waste and old aluminum-plastic composite films through a charging system into a reaction vessel for pyrolysis, wherein the reaction temperature is 350-500 DEG C; and 3)dedusting on oil gas and separating the oil gas, removing carbon black in the oil gas to respectively obtain heavy oil, light oil and combustible gas; cooling the crude aluminium powder in the reaction vessel through an ash-discharging system, and separating by a sorting system to obtain aluminium powder. The method is carried out under anoxic condition, aluminium foil can be recovered, plastic can be reduced to oil gas, the heat transfer effect is good, processing amount is large, no secondary pollution is generated, continuous large-scale production can be realized, and a brand new technology is created. The method has wide economic meaning and social meaning.
Description
Technical field
The present invention relates to a kind of method recycling aluminum-plastic composite membrane, specifically refer to and reclaimed by the aluminium foil in waste-old aluminium-plastic composite membrane, plastics become the separation and recovery method of oil and combustible gas.
Background technology
Aluminium plastic compound packaging material main raw selects low molecular polyethylene and aluminium foil, and this compound package material hinders light, constant temperature, non-toxic and safe and feature with low cost with it, is widely used in food, medicine, chemical and daily necessities packaging field.But with a large amount of wastes of rear generation if do not reclaimed, the aluminium plastic compound packaging material that cannot degrade will be produced, not only have lost a large amount of aluminium and plastic resource, and to environment.According to national departments concerned statistics, this type of discarded aluminium plastic compound packaging material is every year up to 3,000,000 tons.
Aluminium foil and polyethylene plastic film and paper interact and are combined into polyethylene aluminium plastic compound package material, and concrete technology is: together with the oxide binder of the aluminium utilizing hot pressing or tackiness agent that polyethylene (PE) plastic layer and aluminium foil surface are formed.Because the oxide properties of aluminium is highly stable, so be bonded together three kinds of materials are difficult to be separated completely, and vinyon can corrode by acid and alkali-resistance, ordinary organic solvents all can not make it dissolve or swelling, and this brings larger difficulty with regard to giving the recycling of this material.This salvage material technique of current use has two kinds: one to be the principle utilizing metallic aluminium and aluminum oxide all to dissolve in soda acid, uses acid-soluble or that alkali is molten method the al dissolution in material, thus recycle polyethylene plastic film and paper; Two is utilize waterpower method to be paper pulp and plastic-aluminum two portions by three kinds of material separation, and then is used respectively.No matter adopt which kind of method, all can produce severe contamination to environment, cause again a large amount of wastes of resource simultaneously.
China Patent Publication No. is then describe in the patent documentation of CNl554691A and CN102153778A to adopt the way of solvent, water, organic acid mixing to carry out immersion treatment to waste-old aluminium-plastic material at a certain temperature, object is by accelerating organic acid infiltration rate in the plastic, shorten disengaging time, reduce the loss of aluminium simple substance.Although separation efficiency has had raising, because selected solvent species is more single, the problem of existence and water and organic acid intermiscibility and effective infiltration problem.In addition, because the toxic solvent used is volatile, pollution is caused to environment.
China Patent Publication No. is technical scheme described in the patent documentation of CNl01165084A, CNl559704A and CNl693344A is then then utilize tensio-active agent to improve the intermiscibility of system on this basis, metal-salt is adopted to reduce the loss of metallic aluminium, but the method for above all employings, all there is defect in various degree, such as contaminate environment, solution evaporation loss are greatly, cost recovery is high, metallic aluminium degree of oxidation is high.Therefore, a kind of environmental protection is found and plastic-aluminum separates by effective means and it is very necessary to carry out recycling.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of method recycling aluminum-plastic composite membrane.
Object of the present invention is reached by following measures:
A kind of side recycling aluminum-plastic composite membrane comprises the steps:
1) by broken for waste-old aluminium-plastic composite membrane, enter feed bin through delivery system again.
2) the waste-old aluminium-plastic composite membrane after fragmentation enters reactor Pintsch process through feed system, and temperature of reaction is 350 ~ 500 DEG C.
3) to the oil gas obtained successively through oil gas dedusting, gas-oil separation, to remove the carbon black in oil gas, obtains mink cell focus, lightweight oil and combustible gas respectively; Cooled by dust removing system the Grenaille stayed in reactor, separation system obtains aluminium powder after being separated.
Furtherly, waste-old aluminium-plastic composite membrane enter reactor before water ratio be≤10%.
Furtherly, in step 1), described crusher in crushing effect is diameter is≤10cm.
Furtherly, in step 2) in, described feed system is the charging of hydraulic jacking cylinder formula, plays the effect of an envelope material simultaneously, and the diameter of material envelope is at 300m ~ 800cm, and length is 0.5m ~ 1.5m.
Furtherly, in step 2) in, described reactor is horizontal rotary structure, and inside has the heat pipe of staggered arrangement.
Furtherly, in step 3), the heating system that described combustible gas can be reactor provides the energy.
Furtherly, in step 3), described dust removing system is multistage shaftless screw structure.
The present invention runs under anaerobic, and heat-transfer effect is good, and treatment capacity is large, does not produce secondary pollution, can realize continuous mass production.This technique can reclaim the aluminium foil of waste-old aluminium-plastic composite membrane completely, simultaneously the plastics of " white pollution " can be brought to be reduced into mink cell focus, and lightweight oil and combustible gas.Namely the method can reclaim reproducible utilization resource, thoroughly can solve again the problem of environmental pollution that aluminum-plastic composite membrane brings, therefore have boundless economic implications and social effect.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of recycling aluminum-plastic composite membrane of the present invention.
Embodiment
As shown in Figure 1, a kind of method recycling aluminum-plastic composite membrane, comprises following step:
(1) by broken for waste-old aluminium-plastic composite membrane, enter feed bin through delivery system again;
Waste-old aluminium-plastic composite membrane through packing after water ratio substantially below 10%, so do not need through drying or shining dry-cure, directly enter crusher in crushing, be broken into bar shaped that diameter is 10cm or irregularly shaped, aluminum-plastic composite membrane after fragmentation is delivered to intermediate bunker through conveyor, and when feed system charging, conveyor automatic transport is to feed bin, material in feed bin falls into hopper by self gravitation, and by turnover panel compacting.
(2) the waste-old aluminium-plastic composite membrane after fragmentation enters reactor Pintsch process through feed system, and temperature of reaction is 350 ~ 500 DEG C;
Through the material of turnover panel compacting by hydraulic jacking cylinder charging, inlet amount remains on 30 ~ 60kg/ cylinder, and each charging will ensure that certain material is in front end of taking blame for others, play the effect of an envelope material, the high-temperature oil gas prevented is from escaping here, and the diameter of material envelope is at 300m ~ 800cm, and length is 0.5m ~ 1.5m.Reactor is horizontal rotary structure, by oil gun and air gun to reactor direct heating, reactor inside has the heat pipe of staggered arrangement, and adjacent two heat pipes be 90 ° vertical, high-temperature gas can be made by heat pipe to be made the aluminum-plastic composite membrane of reactor inside be heated evenly, and heat trnasfer is accelerated simultaneously.A certain amount of flow deflector is also installed in reactor inside, makes raw material can present different thermogrades from top to rear end, prevents before raw material is deposited in.
(3) to the oil gas obtained successively through oil gas dedusting, gas-oil separation, to remove the carbon black in oil gas, obtains mink cell focus, lightweight oil and combustible gas respectively; Cooled by dust removing system the Grenaille stayed in reactor, separation system obtains aluminium powder after being separated;
Oil gas after oil gas dust removal process by mink cell focus cooling and lightweight oil cooling, obtains mink cell focus and the oil gas containing lightweight oil successively respectively, then passes through three phase separation to the oil gas with lightweight oil, obtains waste water, lightweight oil and combustible gas.
Owing to containing wet goods foreign-matter contamination in waste water, not directly discharge, need by storing oil removal process, air-flotation process is being carried out to waste water, by the micro-bubble of the dispersion of height of formation in water, adhere to solid or the liquid particle of hydrophobic group in waste water, form water-gas-particle three-phase mixed system, after particle adhesion bubble, form apparent density be less than the flco of water and float to the water surface, form scum layer to be struck off, thus realize solid-liquid or Liquid liquid Separation, the waste water after air-flotation process can be delivered to Sewage Plant and be further processed.
By carrying out petroleum naphtha cooling to combustible gas, isolating the petroleum naphtha existed in combustible gas, being separated the combustible gas of petroleum naphtha and being delivered to cracking heating system by roots blower, cracking heating system provides temperature of reaction for reactor cracking.
Grenaille in reactor runs up to and is to a certain degree delivered to hold-up vessel by dust removing system, multistage shaftless screw is adopted to carry, Grenaille, mainly containing a small amount of carbon black and some impurity, adopts vibratory screening apparatus and aidr bells blast system can obtain the higher aluminium powder of quality through cooled Grenaille, can for selling.
Claims (7)
1. recycle a method for aluminum-plastic composite membrane, it is characterized in that comprising the steps:
Step (1), by broken for waste-old aluminium-plastic composite membrane, enter feed bin through delivery system again;
Waste-old aluminium-plastic composite membrane after step (2), fragmentation enters reactor Pintsch process through feed system, and temperature of reaction is 350 ~ 500 DEG C;
Step (3), to the oil gas obtained successively through oil gas dedusting, gas-oil separation, to remove the carbon black in oil gas, obtains mink cell focus, lightweight oil and combustible gas respectively; Cooled by dust removing system the Grenaille stayed in reactor, separation system obtains aluminium powder after being separated.
2. the method for recycling aluminum-plastic composite membrane according to claim 1, is characterized in that, waste-old aluminium-plastic composite membrane enter reactor before water ratio be≤10%.
3. the method for recycling aluminum-plastic composite membrane according to claim 1, is characterized in that, in step 1), described crusher in crushing effect is diameter is≤10cm.
4. the method for recycling aluminum-plastic composite membrane according to claim 1, is characterized in that, in step 2) in, described feed system is the charging of hydraulic jacking cylinder formula, play the effect of an envelope material, the diameter of material envelope is at 300m ~ 800cm, and length is 0.5m ~ 1.5m simultaneously.
5. the method for recycling aluminum-plastic composite membrane according to claim 1, is characterized in that, in step 2) in, described reactor is horizontal rotary structure, and inside has the heat pipe of staggered arrangement.
6. the method for recycling aluminum-plastic composite membrane according to claim 1, is characterized in that, in step 3), the heating system that described combustible gas can be reactor provides the energy.
7. the method for recycling aluminum-plastic composite membrane according to claim 1, is characterized in that, in step 3), described dust removing system is multistage shaftless screw structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726759.8A CN104532003A (en) | 2014-12-04 | 2014-12-04 | Method for recovering and using aluminum-plastic composite film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726759.8A CN104532003A (en) | 2014-12-04 | 2014-12-04 | Method for recovering and using aluminum-plastic composite film |
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| CN104532003A true CN104532003A (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410726759.8A Pending CN104532003A (en) | 2014-12-04 | 2014-12-04 | Method for recovering and using aluminum-plastic composite film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420513A (en) * | 2015-11-13 | 2016-03-23 | 惠州市富济电子材料有限公司 | Treating agent for aluminum alloy resin composite separation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773923A (en) * | 2009-12-29 | 2010-07-14 | 清华大学 | Method for resource treatment of paper-aluminum-plastic or aluminum-plastic composite packaging waste on basis of pyrolysis technique |
| CN103752582A (en) * | 2014-01-06 | 2014-04-30 | 浙江山海环境科技股份有限公司 | Municipal domestic waste treatment process |
-
2014
- 2014-12-04 CN CN201410726759.8A patent/CN104532003A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773923A (en) * | 2009-12-29 | 2010-07-14 | 清华大学 | Method for resource treatment of paper-aluminum-plastic or aluminum-plastic composite packaging waste on basis of pyrolysis technique |
| CN103752582A (en) * | 2014-01-06 | 2014-04-30 | 浙江山海环境科技股份有限公司 | Municipal domestic waste treatment process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105420513A (en) * | 2015-11-13 | 2016-03-23 | 惠州市富济电子材料有限公司 | Treating agent for aluminum alloy resin composite separation |
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Application publication date: 20150422 |