WO2021182690A1 - Dispositif de traitement de déchets acryliques - Google Patents

Dispositif de traitement de déchets acryliques Download PDF

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Publication number
WO2021182690A1
WO2021182690A1 PCT/KR2020/011573 KR2020011573W WO2021182690A1 WO 2021182690 A1 WO2021182690 A1 WO 2021182690A1 KR 2020011573 W KR2020011573 W KR 2020011573W WO 2021182690 A1 WO2021182690 A1 WO 2021182690A1
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WO
WIPO (PCT)
Prior art keywords
acrylic
unit
waste
acrylic monomer
heat transfer
Prior art date
Application number
PCT/KR2020/011573
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English (en)
Korean (ko)
Inventor
이용순
Original Assignee
(주)알앤이
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)알앤이 filed Critical (주)알앤이
Publication of WO2021182690A1 publication Critical patent/WO2021182690A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/12—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/10—Vacuum distillation
    • 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
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
    • 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

Definitions

  • the present invention relates to a waste acrylic treatment device.
  • waste acryl is mainly used to recover in the form of acrylic monomers through crushing and pyrolysis processes.
  • an object of the present invention is to provide a waste acrylic treatment apparatus capable of reducing energy consumption used for recycling of waste acrylic and minimizing the emission of environmental pollutants.
  • the object is a pyrolysis unit for obtaining a gaseous acrylic monomer mixture by heating the waste acrylic pulverized product, a condensation unit for cooling the gaseous acrylic monomer mixture to obtain a liquid acrylic monomer mixture, the pyrolysis unit and the condensing unit and a boiler for heating the heat transfer medium by incinerating the by-products generated in at least one of them, and a preheating unit for heating the waste acrylic pulverized product with the heat transfer medium and providing it to the pyrolysis unit.
  • a refining unit for purifying the liquid acrylic monomer mixture discharged from the condensing unit to obtain a gaseous acrylic monomer and a refining residue, wherein the refining residue is supplied to the boiler and incinerated together with the by-product do.
  • the refining unit includes a distiller for obtaining a gaseous acrylic monomer by distilling the liquid acrylic monomer mixture, a pumping device for depressurizing the inside of the distiller and discharging the gaseous acrylic monomer to the outside of the still, and a gaseous acrylic discharged by the pumping device It is preferable to have a purification condenser for cooling and liquefying the monomer, and a purification gas-liquid separator for separating uncondensed purified gas from the liquid acrylic monomer generated in the purification condenser.
  • the preheating unit preferably has an inlet pipe for transporting the pulverized waste acrylic, and a heat transfer pipe for heating the pulverized waste acrylic in the inlet pipe with the heat transfer medium.
  • the preheating unit has a screw feeder disposed inside the inlet pipe to transport the waste acrylic pulverized material, and a screw feeder driving unit for driving the screw feeder, wherein the screw feeder has a heat transfer medium pipe formed along a rotational axis.
  • the gaseous acrylic monomer mixture transferred from the pyrolysis furnace to the condenser passes through the heat transfer medium pipe.
  • control unit further includes a control unit for controlling the feeder driving unit so that the temperature is within a predetermined target temperature range.
  • the waste acrylic treatment apparatus has an effect of reducing energy consumption and minimizing the emission of environmental pollutants by using the heat of incineration of by-products discharged during the recycling process of waste acrylic.
  • FIG. 1 is a perspective view showing a waste acrylic treatment apparatus according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing a waste acrylic treatment apparatus according to another embodiment of the present invention.
  • FIG. 3 is a perspective view illustrating the preheating unit illustrated in FIG. 2 .
  • FIG. 4 is a control block diagram of a waste acrylic treatment apparatus according to an embodiment of the present invention.
  • Waste acrylic treatment device 100 Waste acrylic treatment device 100 ; pyrolysis part
  • control unit S Inlet temperature sensor
  • the waste acrylic treatment apparatus of the present invention has a pyrolysis unit 100 , a condensing unit 200 , a boiler 300 , and a preheating unit 400 .
  • the pyrolysis unit 100 includes a pyrolysis furnace 110 for receiving the pulverized waste acrylic to be treated and an electric heater 120 for heating the pulverized waste acrylic in the pyrolysis furnace 110 .
  • the pulverized waste acrylic in the pyrolysis furnace 110 is stirred by the stirrer 130 during heating.
  • the stirrer 130 is composed of a stirring blade 131 in the pyrolysis furnace and a stirring motor 132 for rotatingly driving the stirring blade 131 .
  • the pyrolysis furnace 110 is connected to an inlet pipe 111 through which the pulverized waste acrylic is introduced to the side.
  • the waste acrylic pulverized material entering the inlet pipe 111 is transferred from the raw material tank by a screw feeder 410 or a conveyor, and is heated to a predetermined target preheating temperature while passing through the preheating unit 400 pyrolysis furnace 110. is supplied to
  • An outlet pipe 112 through which the gaseous acrylic monomer mixture decomposed in the pyrolysis furnace 110 is discharged is connected to the upper portion of the pyrolysis furnace 110, and a residue transport through which pyrolysis residues generated in the pyrolysis process are discharged at the lower end
  • the pipe 113 is connected to transport the pyrolysis residue to the residue storage and supply station 340 .
  • the gaseous acrylic monomer mixture discharged from the pyrolysis furnace 110 is cooled to a liquefaction temperature (250° C.) or lower through a heat exchanger in the condensing unit 200 and transferred to the gas-liquid separator 210 in a liquid state.
  • the non-liquefied non-condensed gas is separated from the liquid acrylic monomer mixture and transferred to the gas storage supply 330 through the gas transfer pipe 211 .
  • the transferred uncondensed gas is reduced in volume through a compression process, and is stored in the gas storage supply 330 in a state in which impurities are removed through a subsequent condensation process.
  • the by-products stored in the residue storage supply station 340 and the gas storage supply station 330 are connected to the side of the boiler 300 through the storage gas transport pipe 331 and the storage residue transport pipe 341 through the boiler ( 300) and incinerated.
  • Incineration heat generated from the incineration of by-products is used to heat the heat transfer medium of the preheating unit 400, and the incineration residue is an incineration residue discharge pipe 360 and an incineration gas discharge pipe 370 connected to the boiler 300. discharged to the outside through
  • Incineration of by-products proceeds in the order of residues and gases, and when the stored by-products are insufficient, the boiler 300 is operated by receiving the energy source stored in the preliminary fuel supply station 350 .
  • the energy source stored in the preliminary fuel supply station 350 is fossil energy, electricity, gas, or the like.
  • the heat transfer medium heated in the boiler 300 is connected to the inlet pipe 111 through which the pulverized waste acrylic is introduced through the heat transfer pipe 310 to exchange heat with the pulverized waste acrylic to a target preheating temperature.
  • water is usually used as the heat transfer medium, and gas, heating air, water vapor, oil, and liquid with high specific heat can also be used.
  • the preheating process of this waste acrylic pulverized product shortens the time required for pyrolysis, thereby reducing energy consumption in the pyrolysis process and improving productivity through shortening of the process time.
  • the heat transfer pipe 310 is wound along the rotation axis of the inlet pipe 111 , and the waste acrylic pulverized product is preheated through the heat transfer medium in the heat transfer pipe 310 .
  • the heat transfer medium heated in the boiler 300 passes through the preheating unit 400 along the heat transfer pipe 310 wound on the outside of the inlet pipe 111, and the pyrolysis furnace ( The vapor phase acrylic monomer mixture transferred from the 110) to the condensing unit 200 passes through the heat transfer medium conduit 411 formed in the screw feeder 410 .
  • the heat transfer medium and the gaseous acrylic monomer mixture can be changed to the heat transfer medium pipe 411 and the heat transfer pipe 310 and pass through, the amount of energy of the gaseous acrylic monomer mixture is relatively small compared to the heat transfer medium. It is more preferable that the medium passes through the heat transfer pipe 310 to preheat the waste acrylic pulverized product.
  • a screw feeder having a heat transfer medium conduit 411 through which the gaseous acrylic monomer mixture discharged from the pyrolysis furnace 110 passes along the rotation axis while transporting the pulverized waste acrylic into the inlet pipe 111 .
  • the screw feeder 410 is composed of a cylindrical rotating shaft and spiral blades, and transfers the waste acrylic pulverized product input to the waste acrylic treatment device by rotation in the axial direction in the direction of the pyrolysis furnace 110 .
  • a hollow part through which the gaseous acrylic monomer mixture can pass may be formed inside the wing of the screw feeder 410 , and the gaseous acrylic monomer mixture preferably moves in a direction opposite to the transport direction of the waste acrylic pulverized product.
  • the screw feeder 410 is connected to a screw feeder driving unit (not shown) that drives the screw feeder 410 from one side in the direction of the rotation axis.
  • waste acrylic treatment apparatus of the present invention further includes a purification unit (500).
  • the purification unit 500 includes a distiller 510 , a vacuum distiller 511 , a pumping unit 520 , a purification condenser 530 , and a purifier-liquid separator 540 .
  • the liquid acrylic monomer mixture transferred from the gas-liquid separator 210 is distilled under reduced pressure inside the distiller 510 .
  • the distilled gaseous acrylic monomer is discharged to the outside of the distiller 510 through the pump 520 and transferred to the purification condenser 530 .
  • the purification condenser 530 cools the transferred gaseous acrylic monomer to separate the purified liquid acrylic monomer from the non-condensed purified gas.
  • the separated non-condensed purified gas is transferred to the gas storage supply station 330 through the gas transfer pipe 211 connected to the purified gas-liquid separator 540 .
  • the purification unit 500 is not limited thereto, and a plurality of purification units 500 are connected in series to further improve the purity of the acrylic monomer.
  • FIG. 4 is a block diagram functionally illustrating a control-related configuration of the control unit 600 .
  • the control unit 600 detects the temperature of the preheated waste acrylic pulverized material flowing into the pyrolysis furnace 110 through the inlet temperature sensor (S), and the operation of the screw feeder driving unit based on the temperature signal from the inlet temperature sensor (S) to control
  • the screw feeder driving unit is controlled to rotate the screw feeder 410 . slow down
  • the controller 600 increases the rotation speed of the screw feeder 410 .
  • the pulverized waste acrylic is preheated in the target temperature range of the control unit 600 in the preheating unit 400 .
  • the present invention can be utilized in a waste acrylic treatment device that uses the heat of incineration of by-products discharged during the recycling process of waste acrylic.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

La présente invention concerne un dispositif de traitement de déchets acryliques comprenant : une unité de décomposition thermique pour chauffer un produit acrylique usagé pulvérisé pour obtenir un mélange de monomères acryliques gazeux ; une unité de condensation pour refroidir le mélange de monomères acryliques gazeux pour obtenir un mélange de monomères acryliques liquides ; une chaudière pour incinérer des sous-produits, générés dans au moins l'une de l'unité de décomposition thermique et de l'unité de condensation, pour chauffer un agent caloporteur ; et une unité de préchauffage pour chauffer le produit acrylique usagé pulvérisé, à l'aide de l'agent caloporteur, et pour le fournir à l'unité de décomposition thermique.
PCT/KR2020/011573 2020-03-13 2020-08-28 Dispositif de traitement de déchets acryliques WO2021182690A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200031280A KR102341860B1 (ko) 2020-03-13 2020-03-13 폐아크릴 처리장치
KR10-2020-0031280 2020-03-13

Publications (1)

Publication Number Publication Date
WO2021182690A1 true WO2021182690A1 (fr) 2021-09-16

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PCT/KR2020/011573 WO2021182690A1 (fr) 2020-03-13 2020-08-28 Dispositif de traitement de déchets acryliques

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KR (1) KR102341860B1 (fr)
WO (1) WO2021182690A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003147120A (ja) * 2001-11-15 2003-05-21 Toshiba Plant Kensetsu Co Ltd プラスチックの熱分解装置および熱分解方法
JP2003267896A (ja) * 2002-03-14 2003-09-25 Toshiba Plant Kensetsu Co Ltd モノマー回収方法および回収装置
KR20120119993A (ko) * 2011-04-20 2012-11-01 (주)알앤이 폐인조 대리석 처리 시스템
KR20120131838A (ko) * 2011-05-26 2012-12-05 자연과학산업(주) 유기성 폐기물 열분해장치
KR20130125466A (ko) * 2012-05-09 2013-11-19 이동복 인조대리석으로부터 아크릴 수지 추출장치 및 이를 이용한 아크릴 수지 추출방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100999952B1 (ko) 2010-04-05 2010-12-13 김점식 폐합성수지 용융장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003147120A (ja) * 2001-11-15 2003-05-21 Toshiba Plant Kensetsu Co Ltd プラスチックの熱分解装置および熱分解方法
JP2003267896A (ja) * 2002-03-14 2003-09-25 Toshiba Plant Kensetsu Co Ltd モノマー回収方法および回収装置
KR20120119993A (ko) * 2011-04-20 2012-11-01 (주)알앤이 폐인조 대리석 처리 시스템
KR20120131838A (ko) * 2011-05-26 2012-12-05 자연과학산업(주) 유기성 폐기물 열분해장치
KR20130125466A (ko) * 2012-05-09 2013-11-19 이동복 인조대리석으로부터 아크릴 수지 추출장치 및 이를 이용한 아크릴 수지 추출방법

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KR20210115457A (ko) 2021-09-27
KR102341860B1 (ko) 2021-12-22

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