WO2010030038A1 - 廃プラスチック粉砕物の製造方法および固体燃料または鉱石還元材 - Google Patents

廃プラスチック粉砕物の製造方法および固体燃料または鉱石還元材 Download PDF

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Publication number
WO2010030038A1
WO2010030038A1 PCT/JP2009/066205 JP2009066205W WO2010030038A1 WO 2010030038 A1 WO2010030038 A1 WO 2010030038A1 JP 2009066205 W JP2009066205 W JP 2009066205W WO 2010030038 A1 WO2010030038 A1 WO 2010030038A1
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WIPO (PCT)
Prior art keywords
waste plastic
pulverized
plastic
temperature
melting
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PCT/JP2009/066205
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English (en)
French (fr)
Japanese (ja)
Inventor
梶岡正彦
浅沼稔
鶴田秀和
Original Assignee
Ｊｆｅスチール株式会社
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Application filed by Ｊｆｅスチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to KR1020117004950A priority Critical patent/KR101134809B1/ko
Priority to CN2009801351801A priority patent/CN102149526B/zh
Publication of WO2010030038A1 publication Critical patent/WO2010030038A1/ja

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/001—Dry processes
    • 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
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/48—Solid fuels essentially based on materials of non-mineral origin on industrial residues and waste materials
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • 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

Definitions

  • the present invention relates to a method for producing a waste plastic pulverized product for producing ore reducing material, solid fuel and the like by reprocessing waste plastic.
  • the conventional technology for converting plastic to solid fuel is, for example, directly pulverizing plastic with a pulverizer (see, for example, Non-Patent Document 1).
  • a pulverizer see, for example, Non-Patent Document 1.
  • hard plastic can only be pulverized to a particle size of 1 to 2 mm, and this pulverization requires a lot of time and cost, and fiber and film plastics are difficult to pulverize. For this reason, there is a problem that the process must be pulverized after being melted and solidified, resulting in a complicated process.
  • waste plastic when waste plastic is finely pulverized, it can be made into a fuel that can be used as a combustion furnace such as a power generation boiler (see, for example, Patent Document 1). Is not described, and there is no technical disclosure regarding improvement of grindability of waste plastic itself.
  • Plastic having a particle size of 2000 ⁇ m or less is excellent as a solid fuel, and is known to be produced by a dry pulverization method or a wet pulverization method (for example, see Patent Document 2).
  • a jet mill or a vibration ball mill is suitable as a method for obtaining fine powder, but a technique for improving the pulverization property of waste plastic itself is not known.
  • waste plastic is heated, dechlorinated, cooled and solidified, then pulverized and put into a furnace (for example, techniques such as Patent Document 4 and Patent Document 5) are known.
  • plastics are excellent in impact resistance, so it is very difficult to pulverize them as they are.
  • the pulverization time is lengthened or repeatedly put into the pulverizer several times. The method of doing is taken.
  • the plastic is heated by shearing heat generation during pulverization and melts or the pulverized product becomes fibrous. In order to prevent this phenomenon, it is conceivable to cool the pulverizer or the pulverized product, but the equipment cost and the operating cost increase.
  • So-called freeze pulverization is also an effective method for pulverizing plastic. That is, it is a method in which a plastic is cooled to a temperature range where a general plastic causes brittle fracture, for example, tens of degrees below zero, and then pulverized.
  • a general plastic causes brittle fracture, for example, tens of degrees below zero
  • pulverized since this method requires the plastic to be cooled in advance, the equipment cost and operation cost increase.
  • the object of the present invention is to solve such problems of the prior art, and to pulverize waste plastic at a low cost to obtain a pulverized product, and to improve the productivity of the pulverized product. It is in providing the manufacturing method of a thing.
  • Waste plastic is melted at a temperature higher than the softening melting temperature and at a temperature at which flammable decomposition gas is not generated, and further kneaded at a shear rate of 100 (1 / second) or more, and then cooled and solidified to obtain a solidified body.
  • a method for producing a waste plastic pulverized product wherein the solidified product is pulverized.
  • the waste plastic is melted at 160 ° C.
  • a solid fuel or ore reducing material having excellent combustibility can be produced at low cost using waste plastic as a raw material without providing facilities for treating exhaust gas from waste plastic.
  • Productivity of waste plastic crushed material is also improved.
  • waste plastic processing method of the present invention by using the waste plastic processing method of the present invention, a large amount of waste plastic can be economically implemented.
  • the present invention cools waste plastics and container packaging materials contained in municipal waste, industrial waste, general waste, etc., and waste plastics generated in the process of dismantling electrical appliances, automobiles, etc. after heating, melting and kneading.
  • the present invention relates to a technology for producing a solidified body, pulverizing the solidified body, and producing a solid fuel, an ore reducing material, and the like.
  • waste plastic is a mixture of a plurality of types of plastics, and it is effective to melt and knead various types of plastics as a method for improving the pulverization properties of waste plastics and easily pulverizing them. Since most waste plastics contain chlorine by mixing PVC or the like, conventionally, waste plastic is melted and kneaded at a high temperature that generates chlorine gas to generate chlorine-containing gas, Dechlorination treatment to remove the chlorine component was performed.
  • PET polyethylene terephthalate
  • paper / wood cellulose, hemicellulose, lignin
  • flammable decomposition gas flammable organic matter
  • a method for melting and kneading at a relatively low temperature was examined in order to prevent generation of flammable decomposition gas generated when melting and kneading waste plastic.
  • the problem was that chlorine could not be removed sufficiently from waste plastic when melted at a relatively low temperature, but if waste plastic with low chlorine content is used, waste plastic with low chlorine concentration without dechlorination treatment. A solidified body and a pulverized product can be produced. Therefore, in the present invention, it is preferable to use a waste plastic having a low chlorine content (for example, a chlorine concentration of 2 mass% or less).
  • the solid yield after the treatment is increased.
  • the residual chlorine concentration in the solidified material after the treatment is somewhat higher.
  • the calorific value of the solidified body is considered to increase by the amount of chlorine.
  • the organic matter decomposes and separates as a side reaction, the calorific value of the solidified body after treatment is rather small. is there. Therefore, by performing the heat treatment of the waste plastic at a temperature equal to or higher than the softening melting temperature and not generating flammable decomposition gas, the calorific value of the solidified body does not decrease.
  • Patent Document 4 for example, according to Patent Document 4, the heating temperature when waste plastic is heated, melted, cooled, and solidified is increased to a temperature for removing low-boiling compounds originally contained and / or generated by thermal decomposition.
  • Heating is a major premise, specifically 150 to 450 ° C., more preferably 200 to 400 ° C., and even more preferably 250 to 380 ° C. In such a temperature range, combustible decomposition gas is generated together with hydrogen chloride by heating at a high temperature.
  • the generation of waste plastic decomposition gas is very low up to 270 ° C. Therefore, the waste plastic is heated, melted and kneaded below the temperature at which such cracked gas is generated, and cooled and solidified, so that no cracked gas treatment equipment such as a combustion furnace is required, and the waste plastic is processed at low cost.
  • a waste plastic solidified body can be produced.
  • the waste plastic treated in the present invention uses a low chlorine concentration. It is preferable.
  • a waste plastic having a chlorine concentration of 2 mass% or less treated by the method of the present invention can be sufficiently used for blowing blast furnace as an ore reducing material.
  • the temperature at which the flammable decomposition gas is not generated varies slightly depending on the type of waste plastic, but in the normal case, it is preferably 270 ° C. or less from the result of FIG. Furthermore, if it is 200 degrees C or less, generation
  • the temperature in this case is the highest temperature in the resin.
  • the maximum temperature in the resin can be measured by a general method such as inserting a thermocouple into the resin.
  • the temperature at which flammable decomposition gas is not generated is a temperature at which flammable organic substances are not substantially generated from waste plastic by heating, and is generated due to impurities in waste plastic (for example, liquefied gas in disposable lighters). Such gases are outside the scope of combustible cracked gas in this case.
  • the lower limit of the melting temperature is set to a temperature at which the waste plastic is softened and melted so that the waste plastic can be kneaded well as described later.
  • the softening and melting temperature varies depending on the type of waste plastic, but since the main components of ordinary waste plastic are polyethylene (PE) and polypropylene (PP), the lower limit of the softening and melting temperature is preferably 160 ° C. If the waste plastic is mainly composed of PE, the temperature can be set to 120 ° C.
  • the waste plastic to be treated is a mixture of various plastics. That is, the only plastic that melts below 160 ° C is mainly PE, and if it is processed forcibly, the required power required for kneading becomes extremely large, and a blockage occurs in the processing apparatus, making it difficult to continue the processing. It may become.
  • “Melting and further kneading” the waste plastic means that the waste plastic is kneaded simultaneously with the melting of the waste plastic or kneaded in a molten state after the melting.
  • the kneading is performed at a shear rate of at least 100 (1 / second) or more.
  • the molding shrinkage of different plastics differs depending on the plastic, and during the cooling process, the different plastics shrink according to their molding shrinkage and the bonding interface is separated.
  • the inside must be evacuated (vacuum voids), and when void formation does not occur, a stress that "shall be separated but cannot be separated” remains at the bonding interface (residual stress).
  • a dissimilar plastic highly dispersed by sufficient kneading has many adhesion interfaces, and the solidified body necessarily has a strong residual stress. When an impact is applied to the solidified body, stress concentration occurs at these different plastic bonding interfaces, and a breakage starting point is generated relatively easily.
  • the entire structure becomes brittle and the grindability is improved.
  • differences in dissolution parameters and the like also affect pulverizability improvement.
  • Solid particulates other than waste plastics are also incompatible with plastics in most cases, so they are discarded before waste plastic melting and kneading, or during melting and kneading, or both before melting and kneading and during melting and kneading.
  • solid particulates other than plastic By mixing solid particulates other than plastic with waste plastic and kneading with the waste plastic, after solidification by cooling, the solid particulate matter becomes a starting point of destruction, and the pulverization property of the solidified body can be further improved.
  • a tumbler or the like may be used to mix waste plastic and solid particulate matter in advance.
  • waste plastic and solid particulates may be separately supplied to the melting and kneading apparatus and mixed in the apparatus, or one of them is supplied first and then the other is supplied. May be.
  • the melting point of the solid granular material is higher than the melting start temperature of the waste plastic, it is preferable to add the solid granular material after supplying the waste plastic first and achieving a certain molten state.
  • Solid particulates include fossil fuels such as coal, coke and asphalt, synthetic polymers such as virgin plastic, natural polymers such as starch and cellulose, metals such as iron and aluminum, and those ores such as iron ore and bauxite, Examples include inorganic substances such as mica and talc.
  • biomass solids such as waste derived from agricultural products, such as rice husk, tea husk, and coffee husk (rice husk), and lignin-containing plants such as wood, charcoal, and bamboo, as the solid particulate matter.
  • wastes derived from agricultural crops and waste wood such as thinned wood and construction waste.
  • the biomass solid contains ash and is likely to be a starting point of destruction.
  • the rice husk tends to be elongated, and is further pulverized when kneading molten waste plastic, so that it can be effectively used as a starting point for destruction.
  • the compounding quantity of the solid granular material in this case shall be less than 100 mass parts of solid granular materials with respect to 100 mass parts of waste plastics.
  • the solid granular material is 100 parts by mass or more, the waste plastic is pulverized after the kneading process, and handling becomes difficult. Moreover, it is preferable to set it as 5 mass parts or more of solid granular materials with respect to 100 mass parts of waste plastics. This is because the effect of adding the solid particulate matter can be exhibited better. These solid particulate materials can be used if they can be introduced into the processing apparatus.
  • the waste plastic can be heated and kneaded at a shear rate of 100 (1 / second) or more at the same time.
  • the extruder can be further improved in kneadability by using a biaxial extruder.
  • waste plastic pulverized product By crushing the produced waste plastic solidified body, waste plastic pulverized product can be produced, and ore reducing material and solid fuel can be produced.
  • the solidified product cooled and solidified after heating and melting has improved pulverization properties, and a fine powder having a particle size of 2 mm or less can be easily produced using a normal pulverizer.
  • the crushed solidified body is preferably passed through a sieve to adjust the particle size.
  • the particle size after pulverization can be set by appropriately changing the sieve mesh. For example, fine powder which is a waste plastic pulverized product having a particle size of 0.5 mm or less can be obtained by passing through a sieve having an aperture of 0.5 mm using the production method of the present invention.
  • Waste plastics subject to the present invention that is, raw material plastics in the present invention include waste plastics and container packaging materials contained in municipal waste, industrial waste, general waste, etc., and dismantling of electrical products, automobiles, etc. Examples include waste plastic generated in the process.
  • polyolefins such as polyethylene and polypropylene, polyvinyl chloride, polyvinylidene chloride, chlorinated polyethylene, polystyrene, polyethylene terephthalate, polycarbonate, nylon, and other thermoplastic resins and thermosetting resins are all applicable.
  • a plastic material in which any two or more of the plastics are mixed is used. Normally, it contains some chlorine-containing plastic due to the nature of waste plastic, which is waste, but the present invention can be used even with waste plastic that does not contain chlorine-containing plastic.
  • the shape of the plastic to be heat-treated may be roughly pulverized, and a size of about 10 cm square is sufficient.
  • For general waste plastic it is not necessary to pulverize again, and it is processed in the recovered state. Yes, film, sheet, and fiber plastics can be processed as they are. Of course, it may be finely pulverized, but the processing cost increases accordingly.
  • the melting / kneading step examples include the following steps. That is, the waste plastic is melted at 160 ° C. or higher at a temperature at which combustible decomposition gas is not generated in a reactor or an extruder.
  • the temperature at which the combustible decomposition gas is not generated varies depending on the composition of the waste plastic, but the upper limit is usually 270 ° C. In the temperature range where the combustible decomposition gas is not generated, it is preferable to melt at a higher temperature, preferably 200 ° C. or higher, more preferably 230 ° C. or higher.
  • MI Melt Index
  • the molten plastic is a non-Newtonian fluid, and as shown in FIG. 2, the melt viscosity of low density polyethylene (LDPE) is substantially constant in the region where the shear rate is low.
  • LDPE low density polyethylene
  • kneading in a region where the shear rate is 100 (1 / second) or more is extremely effective for lowering kneading power and improving kneading efficiency.
  • the melting and kneading treatment may be a batch type or a continuous type. An intermediate type such as batch switching may also be used.
  • an extruder is preferable, and a twin screw extruder is more preferable from the viewpoint of kneadability.
  • Processing time is suitably 0.5 minutes to 30 hours.
  • the treatment time is less than 0.5 minutes, it is difficult to control the temperature in the reactor, and it is difficult to sufficiently knead the molten waste plastic product.
  • processing time exceeds 30 hours, processing efficiency falls and it is not economical.
  • a heat medium In the melting / kneading process, a heat medium can be allowed to coexist.
  • the waste plastic after the melting treatment is cooled and solidified by supplying a fixed amount of the molten plastic to a belt cooler by a molten plastic conveying device.
  • the amount of heat removal is calculated from the amount of enthalpy between the temperature after heat treatment and the temperature until fully solidified, and the treatment speed.
  • the center temperature after cooling is about 110 ° C. It is sufficient to control so that
  • a continuous heating and melting apparatus when using a continuous heating and melting apparatus, it can be cooled at the outlet of the apparatus, or it can be cooled without being cut, such as air cooling or charging into water.
  • the solidified body that has undergone the cooling and solidification step is preferably pulverized so as to have a predetermined particle size.
  • the pulverization of the plastic treated product which is a cooled solidified body obtained by the above-described method of the present invention, can be performed very easily as compared with the pulverization of untreated plastic. That is, the processed plastic product obtained by the method of the present invention can be pulverized by any type of pulverizer, and for example, a jaw crusher, a roll crusher, a ball mill, a centrifugal mill, or the like can be used.
  • the particle size after pulverization may be determined according to the purpose of use of the processed plastic. If the particle size is adjusted to a predetermined particle size, for example, ore reducing material such as iron ore, that is, pig iron such as blast furnace is produced. It can be used as raw fuel such as reducing material for vertical furnaces, reducing material for converters, combustion fuel such as boilers and kilns, cupola fuel, and raw materials for coke ovens. Moreover, it can be used as a solid fuel other than the above-mentioned use.
  • ore reducing material such as iron ore
  • pig iron such as blast furnace
  • the solidified body yield was calculated from the raw material charge amount and the solidified body recovered amount at this time. Further, the chlorine concentration in this solidified body (solidified body residual chlorine concentration) and the calorific value of the solidified body were measured. The results are shown in Table 1.
  • This solidified body was coarsely pulverized by a small pulverizer (cutter mill) manufactured by Horai Co., Ltd., and passed through a 9 mm screen.
  • the coarsely pulverized product was finely pulverized with an ACM pulverizer (hammer mill) manufactured by Hosokawa Micron Corporation, and then subjected to a classification test with a test sieve to measure the particle size distribution. The results are shown in Table 2.
  • the average particle size was calculated from the particle size distribution.
  • R (Dp) is the mass% on the integrated sieve of the sieve mesh Dp
  • De is the particle size characteristic number [R (Dp) is the number corresponding to mass%]
  • n is an equal number ( Index for evaluating the uniformity of the particle size distribution of the granular material)
  • b is a constant and indicates an index for evaluating the fineness of the granular material.
  • the average particle size of the waste plastic pulverized product of Example 1 of the present invention that was melt-treated at 180 ° C. was less than 500 ⁇ m and was sufficiently fine.
  • Invention Example 2 The same operation as in Invention Example 1 was conducted except that 70 parts by mass of general waste container packaging waste plastic pulverized to about 1 cm and 30 parts by mass of rice husk were mixed and supplied to the twin screw extruder. The solidified product and the pulverized product thereof were manufactured. Tables 1 and 2 show the results of measurement of the solidified body yield, the residual chlorine concentration in the solidified body, the calorific value of the solidified body, the calculation result of the average particle size, and the measurement result of the particle size distribution after pulverization.
  • Invention Example 3 Invention Example except that 70 parts by mass of general waste container packaging waste plastic pulverized to about 1 cm and 30 parts by mass of coal (brand: Xinglongzhuang) were mixed and supplied to a twin screw extruder. The same operation as in No. 1 was performed to produce a solidified product and a pulverized product thereof. Tables 1 and 2 show the results of measurement of the solidified body yield, the residual chlorine concentration in the solidified body, the calorific value of the solidified body, the calculation result of the average particle size, and the measurement result of the particle size distribution after pulverization.
  • the average particle size after pulverization is smaller, but this is because the added coal itself has better pulverizability than rice husk.
  • Comparative Example 1 the residual chlorine concentration in the solidified body was sufficiently reduced. Moreover, although the average particle diameter is small and pulverized, the main cause was a high ratio of ultrafine powder of 75 ⁇ m or less.
  • the ultra fine powder of 75 ⁇ m or less has safety problems such as dust explosiveness, and costs for countermeasures such as nitrogen filling are required.
  • the average particle size was small and pulverized, but the main cause was a high proportion of ultrafine powder of 75 ⁇ m or less.
  • the ultra fine powder of 75 ⁇ m or less has safety problems such as dust explosiveness, and costs for countermeasures such as nitrogen filling are required.
  • Example 4 The same processing as in Example 1 of the present invention was attempted except that the processing temperature at the time of kneading with a twin-screw extruder was set to 140 ° C. However, the screw motor stopped due to overload about 5 minutes after the start of the treatment, and the treatment could not be continued. When the screw was extracted after cooling the twin screw extruder, unmelted waste plastic solid was clogged inside.
  • Example 1 of the present invention all the pulverized products could be finely pulverized to an average particle size of 500 ⁇ m or less, despite being melted and kneaded at a low temperature. By adding rice husk and coal, the grindability is further improved.
  • Example 1 of the present invention and Comparative Example 1 were compared, in Example 1 of the present invention, the residual chlorine concentration in the solidified body did not decrease, but the solidified body yield increased and the calorific value of the solidified body increased. This clearly improves the productivity of the pulverized product. In Comparative Example 1, this is thought to be due to the fact that terephthalic acid, which is a combustion component, is also removed during the dechlorination process, but the combustion component remains in the present invention example.
  • Comparative Example 3 when Comparative Example 3 is compared with Comparative Example 1, the average particle size is increased despite the addition of rice husk, and at first glance, it seems that the grindability is lowered.
  • Comparative Example 3 has a higher particle size ratio of 150 to 500 ⁇ m and 75 to 150 ⁇ m than Comparative Example 1, and the width of the particle size distribution is It is narrower and the grindability is improved. Therefore, the effect of “better crushability is exhibited by forming the starting point of fracture” by adding rice husk was recognized.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
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PCT/JP2009/066205 2008-09-12 2009-09-10 廃プラスチック粉砕物の製造方法および固体燃料または鉱石還元材 WO2010030038A1 (ja)

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KR1020117004950A KR101134809B1 (ko) 2008-09-12 2009-09-10 폐플라스틱 분쇄물의 제조방법
CN2009801351801A CN102149526B (zh) 2008-09-12 2009-09-10 废塑料粉碎物的制造方法及固体燃料或矿石还原材料

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JP2008-234187 2008-09-12
JP2008234187 2008-09-12

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KR (1) KR101134809B1 (enrdf_load_stackoverflow)
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WO (1) WO2010030038A1 (enrdf_load_stackoverflow)

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JP7725112B1 (ja) * 2024-12-06 2025-08-19 環境エネルギー株式会社 固形燃料の製造方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN104073630B (zh) * 2014-07-21 2016-05-25 安徽工业大学 一种废塑料为碳源的铁基含碳球团及其制备方法
TWI570164B (zh) * 2014-08-29 2017-02-11 Shiung Fire Cremator Co Ltd Method of making environmentally friendly electronic board by recycling plastic waste
CN105647611A (zh) * 2014-11-14 2016-06-08 何湘贤 燃料精
JP7417852B2 (ja) 2018-10-19 2024-01-19 三菱マテリアル株式会社 被覆電線の処理方法
AU2019457152A1 (en) * 2019-07-12 2021-11-25 Technique Co., Ltd. Method for grinding plastic waste and method for manufacturing synthetic resin molded product using plastic waste

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09118888A (ja) * 1995-10-24 1997-05-06 Kawasaki Heavy Ind Ltd 廃プラスチックの粒体燃料化方法
JPH11140474A (ja) * 1997-11-04 1999-05-25 Kawasaki Steel Corp プラスチック固体燃料の製造方法
JPH11147973A (ja) * 1997-11-14 1999-06-02 Nkk Corp 熱硬化性樹脂粉体の廃材の処理方法及びその廃材を炉へ 供給する方法
JPH11197630A (ja) * 1997-11-12 1999-07-27 Kawasaki Steel Corp プラスチックの処理方法および該処理方法で得られる固体燃料、鉱石用還元剤
JPH11209767A (ja) * 1998-01-30 1999-08-03 Ube Ammonia Kogyo Kk 廃プラスチックの利用方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2968855B2 (ja) * 1991-05-08 1999-11-02 株式会社ネオス プラスチックス粉末含有燃料
JPH07119922A (ja) * 1993-09-01 1995-05-12 Mitsui Eng & Shipbuild Co Ltd 廃プラスチック燃焼装置及び廃プラスチック粉体燃料
JP2002067029A (ja) * 2000-08-24 2002-03-05 Nkk Corp 使用済みプラスティックの再資源化処理方法及びその再資源化成型物
CN1162263C (zh) * 2001-12-18 2004-08-18 上海交通大学 用双螺杆挤出机回收交联聚乙烯的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09118888A (ja) * 1995-10-24 1997-05-06 Kawasaki Heavy Ind Ltd 廃プラスチックの粒体燃料化方法
JPH11140474A (ja) * 1997-11-04 1999-05-25 Kawasaki Steel Corp プラスチック固体燃料の製造方法
JPH11197630A (ja) * 1997-11-12 1999-07-27 Kawasaki Steel Corp プラスチックの処理方法および該処理方法で得られる固体燃料、鉱石用還元剤
JPH11147973A (ja) * 1997-11-14 1999-06-02 Nkk Corp 熱硬化性樹脂粉体の廃材の処理方法及びその廃材を炉へ 供給する方法
JPH11209767A (ja) * 1998-01-30 1999-08-03 Ube Ammonia Kogyo Kk 廃プラスチックの利用方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7725112B1 (ja) * 2024-12-06 2025-08-19 環境エネルギー株式会社 固形燃料の製造方法

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