CN101085926A - Waste and old plastic, rubber reclaiming method and device thereof - Google Patents
Waste and old plastic, rubber reclaiming method and device thereof Download PDFInfo
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- CN101085926A CN101085926A CNA2007100290377A CN200710029037A CN101085926A CN 101085926 A CN101085926 A CN 101085926A CN A2007100290377 A CNA2007100290377 A CN A2007100290377A CN 200710029037 A CN200710029037 A CN 200710029037A CN 101085926 A CN101085926 A CN 101085926A
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention discloses a method for recovering waste plastic and rubber and the used device. The method comprises following steps: burning waste plastic and rubber in burning device, purifying waste gas in purifying and filtering device filled with acid solution, filtering and purifying for at least two times, distilling filtered and condensed supernatant of got waste liquid in distilling apparatus. The invention is characterized by environment- friendly process, simple device, good operability, low treatment cost, no special treatment for waste plastic and rubber before burning, and greatly simplified distilling process. Most of the burning waste gas are reduced into oil product, the added value is high, the left gas is discharged at standard level and causes no pollution.
Description
Technical field
The present invention relates to the method and the device thereof of offal treatment field, particularly waste or used plastics, rubber reclaiming.
Background technology
At present, waste or used plastics, rubber are piled up more and more, how effectively to handle, and the influence that reduces environment is the problem that countries in the world are paid close attention to always.Along with the raising of the modern plastics industrial expansion and the level of consumption, great majority are for the disposable articles for use that make, with after promptly abandon, cause environmental pollution.Existing waste or used plastics, rubberized mainly comprise following mode:
(1) landfill disposal: sending into the city refuse landfill landfill disposal as rubbish is to handle the main method of waste or used plastics at present.But garbage loading embeading is occupied limited arable land, serious waste land resources, and prolonged being stale-proof behind the plastic garbage landfill, and under the situation of the unglazed photograph of no air, plastic garbage needs can decompose totally after 200 years in landfill.
(2) burning disposal: landfill method takes up an area of in order to solve, expense is high and the chronicity of environment is destroyed, and many countries all burn waste plastic equipment at active development, and utilizes and burn the heat that is produced and generate electricity, and reaches resource reutilization.But plastics are in thermal decomposition process, and polymkeric substance generation cracking discharges a large amount of obnoxious flavoures, all are the objectionable impuritiess that environment is had very big harm.Burn igelite, not only produce, but also produce obnoxious flavoures such as CO, NOx, formaldehyde, vinylchlorid, vinylbenzene, ecotope is produced influence greatly the great chlorine of environmental disruption, hydrogenchloride and dioxin gas.
(3) the discarded recycling of holding concurrently is handled: the recycling of waste plastic is the important means of protection environment, is again the important channel that makes full use of human existing resource.
The recovery of plastics is different from the recovery of metal, paper and glass, because the difference of the physics of various plastics and chemical property and the uncompatibility of various plastics, their mixture are not suitable for processing, therefore, each plastics must be collected respectively at present, is handled categorizedly then.In collection and assorting process, sneaking into of dirt and tramp material need be prevented, otherwise re-using of reclaimed materials will be influenced.Recovery and utilization technology comprises:
Plastic waste melt-processed, this technology are the methods of most economical and most convenient during present plastic waste utilizes again, and the problem that mainly runs into is the influence of stopping composition in high energy consumption and the plastic waste.
The hydrolysis recovery technology: the Plastic Resin by polycondensation is produced, can be hydrolyzed as Polyurethane, polymeric amide, polyester, polycarbonate etc., make these polymkeric substance return to original monomer or intermediate again.
The oiling recovery technology: plastics are to make raw material synthetic macromolecular compound by oil, cut off atomchain when it being applied energy, can obtain the material of similar oil molecule structure.Utilize this principle, adopt to add the thermally splitting decomposition, distillation can obtain oil fuels such as gasoline, diesel oil, and this process is called the oiling of plastics.The oil product productive rate of oiling technology output can reach more than 75%～80%, generates oil and can be used as oil-firing boiler with oily.This technology is than the big cost height of other Treatment of Waste Plastics technical difficulty, but sees it then is a suitable treatment technology from environmental angle.
High temperature pyrolytic cracking (HTP) is handled: high temperature pyrolysis is meant the thermal destruction of macromolecular material under the high-temperature condition, emits a large amount of gases simultaneously, can obtain 44% fuel gas during processing, the mixture of 26% aromatic hydrocarbon and light benzine and tar, and 30% solid residue.This method is fit to handle the plastics of those containing metal paper tinsels or metallic coating, and the fuel gas of acquisition and oils mixture can be used as fuel and use, but remaining 30% residue must be handled again.
Combustion method is handled: for the plastic waste of those contaminations and regenerated waste plastic product repeatedly, burning disposal is its last home to return to, can obtain the heat energy of plastic waste like this.The living calorific value of plastic waste is suitable with identical all kinds of oil fuel, and the heat energy that burning obtains can be used for generating.
Summary of the invention
For addressing the above problem, the purpose of this invention is to provide a kind of waste or used plastics, rubber reclaiming method, its processing cost is low, thorough contaminated solution problem, and turn waste into wealth.
Another object of the present invention provides a kind of waste or used plastics, rubber reclaiming device.
The object of the present invention is achieved like this: a kind of waste or used plastics, rubber reclaiming method is characterized in that may further comprise the steps: burn waste or used plastics, rubber; Waste gas feeds acidic solution, carries out two-stage pickling filtration, purification at least; Upper strata liquid to filtration and condensation gained waste liquid carries out hydrogenation distillation.
Described acidic solution is a sulphuric acid soln.
Add metal catalyst in the described hydrogenation distillation process.
Described hydrogenation distillation is air distillation, may further comprise the steps: Heating temperature to 120 ℃～200 ℃ of distillations obtain gasoline; Distillation obtains diesel oil when continuing Heating temperature to 280 ℃～350 ℃; Continue Heating temperature to 400 ℃～500 ℃ of distillations and obtain heavy oil; Residue is paraffin.
A kind of waste or used plastics, rubber reclaiming device, comprise incinerator, filtration equipment for clarifying and water distilling apparatus, it is characterized in that: described filtration equipment for clarifying comprises two-stage at least, by vacuum fan, in the treatment chamber of acidic solution and upper strata liquid collecting chamber are housed are linked in sequence and form, the air outlet of vacuum fan escape pipe is located at below the treatment chamber liquid level; Described incinerator and filtration equipment for clarifying are linked in sequence.
Described vacuum fan adopts water-cooling, and body is soaked in the water.
Pass through U type pipe coupling between described treatment chamber and the upper strata liquid collecting chamber.
The present invention meets current environmental protection trend, and technology, equipment are simple, workable, processing cost is low, owing to adopt acidic solution that waste gas is carried out filtration, purification, so need not special handling procedure before the waste or used plastics, rubber burning, but various plastics combination treatment, and hydrogenation distillation technology is also simplified greatly, cost reduces, and the combustion exhaust major part after the present invention handles is reduced into petroleum products, the added value height, but the residual exhaust qualified discharge can not pollute air simultaneously.
Description of drawings
Fig. 1 is waste or used plastics of the present invention, rubber recovery system device synoptic diagram;
Fig. 2 is waste or used plastics of the present invention, rubber regeneration equipment configuration synoptic diagram.
Embodiment
The present invention is a kind of waste or used plastics, rubber reclaiming method, may further comprise the steps: burn waste or used plastics, rubber; Waste gas feeds acidic solution, carries out two-stage filtration at least and purifies, discharging; Upper strata liquid to filtration and condensation gained waste liquid carries out hydrogenation distillation.
Waste gas carries out two-stage pickling filtration, purification at least, comprises two-step purification in the present embodiment, and waste gas at first feeds first step acidic solution and carries out the pickling filtration, purification, then through the condensing works condensation, and feeds second stage acidic solution filtration, purification once more, at last discharging.Preferably, acidic solution is adopted as sulphuric acid soln, and is best, and employing concentration is 40%～60% sulphuric acid soln.Owing to adopt acidic solution, therefore waste or used plastics, rubber need not classification before burning, need not special handling procedure, waste gas is in the process of filtration, purification, the petroleum-type component is floated on the upper strata by the acid solution condensation, other impurity are then decomposed by acid solution, and the tail gas of Pai Chuing can not pollute environment more at last.Remaining acid solution should be carried out harmless treatment after the pickling, for example by adding the alkali neutralization precipitation.
The upper strata liquid of gained waste liquid carries out hydrogenation distillation after collection filtration and the condensation.In the present invention, owing to be to carry out filtration, purification with acid solution, therefore upper strata liquid also contains many acid solutions, when carrying out hydrogenation distillation, as long as add metal catalyst (hydrogen in the acid can be cemented out metal all can adopt) in this upper strata liquid, heating makes itself and the acid liquid reaction that includes displace hydrogen, finishes the reaction of hydrogenation distillation then, technology is simplified greatly, and equipment cost, catalyzer cost all significantly reduce.Hydrogenation distillation carries out under normal pressure, may further comprise the steps: Heating temperature to 120 ℃～200 ℃, and distillation obtains gasoline; Distillation obtains diesel oil when continuing Heating temperature to 280 ℃～350 ℃; Continue Heating temperature to 400 ℃～500 ℃, distillation obtains heavy oil; Residue is paraffin.
As shown in Figure 1, 2, the device of above-mentioned waste or used plastics, rubber reclaiming includes incinerator 1, filtration equipment for clarifying 2, condensing works 3 and water distilling apparatus etc.
Filtration equipment for clarifying 2 comprises two-stage at least, by vacuum fan 21, in the treatment chamber 23 of acidic solution 22 and upper strata liquid collecting chamber 24 are housed are linked in sequence and form.More than first step filtration equipment for clarifying 2 comprises that a cover (vacuum fan 21, treatment chamber 23 and upper strata liquid collecting chamber 24) or overlaps, comprise two covers in the present embodiment, one cover is used for normal processing, and is in support another set of or increase the incinerator air capacity at needs, opens when accelerating burning.Because the combustion exhaust temperature is very high, therefore very high to the heat-resisting requirement of vacuum fan 21, general vacuum fan can't be suitable for, and in the present embodiment, vacuum fan adopts water-cooling, and body directly is soaked in the water, can reach good heat-radiation effect.The air outlet 211 of vacuum fan 21 escape pipes is located at below treatment chamber 23 liquid levels, and is best, and treatment chamber 23 bottoms are located in air outlet 211, and vacuum fan 21 discharges waste gas pump to treatment chamber 23 bottoms, waste gas can be passed through to greatest extent discharge after acid solution is washed again.Connect by U type pipe 25 between treatment chamber 23 and the upper strata liquid collecting chamber 24, the water seal of U type position can prevent exhaust gas leakage.The amount of acidic solution 22 and pH value are monitored in real time in treating processes and are adjusted in the treatment chamber 23.
For reducing spent air temperture, can between the stage purification filtration unit, install condensing works 3 additional.In the present embodiment, condensing works 3 comprises condensation pond 31 and cooling tower 32.The vapor pipe 26 of first step filtration equipment for clarifying 2 runs through under the liquid level in condensation pond 31, makes the preliminary condensation of gas, enters cooling tower 32 then, and temperature is further reduced.Vapor pipe 26 and cooling tower 32 through condensation pond 31 all are connected with collection chamber receiving condensate 33 by U type pipe 34, and the water seal of its U type position can prevent exhaust gas leakage equally.Vapor pipe 35 through condensing works 3 is communicated with second stage filtration equipment for clarifying 2 ' again.
As shown in Figure 2, form the regenerating unit of waste liquid, adopt common atmospheric distillation plant to get final product by water distilling apparatus.The upper strata liquid conveying of gained waste liquid after filtration and the condensation is collected in the solution still 4, pumps into the water distilling apparatus bottom then quantitatively.Be added with metal catalyst in the water distilling apparatus, pending upper strata liquid is heated by the heating element of its bottom after entering water distilling apparatus, carries out hydrogenation distillation, is heated to temperature and is about 200 ℃ in first step distillation tower 5, and distillation obtains gasoline; Surplus solution enters second stage distillation tower 6, continues to be heated to temperature and is about 350 ℃, and distillation obtains diesel oil; Surplus solution enters third stage distillation tower 7, continues to be heated to 400 ℃～500 ℃ of temperature, and distillation obtains heavy oil; Last residuum is a paraffin, flow to room 8 at last.
Claims (10)
1. a waste or used plastics, rubber reclaiming method is characterized in that may further comprise the steps: burn waste or used plastics, rubber; Waste gas feeds acidic solution, carries out two-stage pickling filtration, purification at least; Upper strata liquid to filtration and condensation gained waste liquid carries out hydrogenation distillation.
2. waste or used plastics according to claim 1, rubber reclaiming method is characterized in that: described acidic solution is a sulphuric acid soln.
3. waste or used plastics according to claim 2, rubber reclaiming method is characterized in that: described acidic solution is the sulphuric acid soln of concentration 40%～60%.
4. waste or used plastics according to claim 1, rubber reclaiming method is characterized in that: add metal catalyst in the described hydrogenation distillation process.
5. waste or used plastics according to claim 1, rubber reclaiming method is characterized in that: described hydrogenation distillation is air distillation, may further comprise the steps: Heating temperature to 120 ℃～200 ℃ of distillations obtain gasoline; Distillation obtains diesel oil when continuing Heating temperature to 280 ℃～350 ℃; Continue Heating temperature to 400 ℃～500 ℃ of distillations and obtain heavy oil; Residue is paraffin.
6. a waste or used plastics, rubber reclaiming device, comprise incinerator, filtration equipment for clarifying and water distilling apparatus, it is characterized in that: described filtration equipment for clarifying comprises two-stage at least, by vacuum fan, in the treatment chamber of acidic solution and upper strata liquid collecting chamber are housed are linked in sequence and form, the air outlet of vacuum fan escape pipe is located at below the treatment chamber liquid level; Described incinerator and filtration equipment for clarifying are linked in sequence.
7. waste or used plastics according to claim 6, rubber reclaiming device is characterized in that: also include condensing works, be located between the two-step purification filtration unit.
8. waste or used plastics according to claim 6, rubber reclaiming device is characterized in that: described vacuum fan adopts water-cooling, and body is soaked in the water.
9. waste or used plastics according to claim 6, rubber reclaiming device is characterized in that: pass through U type pipe coupling between described treatment chamber and the upper strata liquid collecting chamber.
10. waste or used plastics according to claim 6, rubber reclaiming device is characterized in that: described water distilling apparatus is an atmospheric distillation plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100290377A CN101085926A (en) | 2007-07-05 | 2007-07-05 | Waste and old plastic, rubber reclaiming method and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100290377A CN101085926A (en) | 2007-07-05 | 2007-07-05 | Waste and old plastic, rubber reclaiming method and device thereof |
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| CN101085926A true CN101085926A (en) | 2007-12-12 |
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| CNA2007100290377A Pending CN101085926A (en) | 2007-07-05 | 2007-07-05 | Waste and old plastic, rubber reclaiming method and device thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240260A (en) * | 2012-02-07 | 2013-08-14 | 庄融 | Method and apparatus for treating waste resource |
| CN105018126A (en) * | 2014-04-30 | 2015-11-04 | 中国科学院过程工程研究所 | Mild pyrolysis method for preparing liquid hydrocarbon through waste polyolefin |
| CN110724549A (en) * | 2019-10-31 | 2020-01-24 | 井上和一 | Oil refining device, refining method and water treatment method in cooling device |
-
2007
- 2007-07-05 CN CNA2007100290377A patent/CN101085926A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240260A (en) * | 2012-02-07 | 2013-08-14 | 庄融 | Method and apparatus for treating waste resource |
| CN103240260B (en) * | 2012-02-07 | 2016-05-25 | 庄融 | Method and apparatus for treating waste resource |
| CN105018126A (en) * | 2014-04-30 | 2015-11-04 | 中国科学院过程工程研究所 | Mild pyrolysis method for preparing liquid hydrocarbon through waste polyolefin |
| CN105018126B (en) * | 2014-04-30 | 2017-07-14 | 中国科学院过程工程研究所 | A kind of utilization waste polyolefin produces the gentle cleavage method of liquid hydrocarbon |
| CN110724549A (en) * | 2019-10-31 | 2020-01-24 | 井上和一 | Oil refining device, refining method and water treatment method in cooling device |
| CN110724549B (en) * | 2019-10-31 | 2021-12-31 | 井上和一 | Oil refining device, refining method and water treatment method in cooling device |
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Open date: 20071212 |