WO2003043753A1 - Procede pour produire des granules contenant des substances nocives a partir de cendres d'incineration ou de matiere similaire - Google Patents

Procede pour produire des granules contenant des substances nocives a partir de cendres d'incineration ou de matiere similaire Download PDF

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Publication number
WO2003043753A1
WO2003043753A1 PCT/JP2002/012097 JP0212097W WO03043753A1 WO 2003043753 A1 WO2003043753 A1 WO 2003043753A1 JP 0212097 W JP0212097 W JP 0212097W WO 03043753 A1 WO03043753 A1 WO 03043753A1
Authority
WO
WIPO (PCT)
Prior art keywords
harmful substances
water
incinerated ash
containing harmful
incineration ash
Prior art date
Application number
PCT/JP2002/012097
Other languages
English (en)
Japanese (ja)
Inventor
Koichi Kawase
Original Assignee
Art Ceramic Co., Ltd.
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 Art Ceramic Co., Ltd. filed Critical Art Ceramic Co., Ltd.
Publication of WO2003043753A1 publication Critical patent/WO2003043753A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/04—Waste materials; Refuse
    • C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
    • C04B18/10—Burned or pyrolised refuse
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B18/02—Agglomerated materials, e.g. artificial aggregates
    • C04B18/023—Fired or melted materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/135—Combustion residues, e.g. fly ash, incineration waste
    • C04B33/1355—Incineration residues
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62695—Granulation or pelletising
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
    • 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
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to a method for producing particulate matter that is adsorbed without scattering harmful substances contained in incinerated ash, fly ash, contaminated soil and the like.
  • Incinerated ash, fly ash, contaminated soil, etc. contain large amounts of harmful substances such as PCBs.
  • harmful substance incinerators high-temperature gasification melting furnace equipment, reduction melting furnace equipment, etc.
  • These harmful substance incinerators decompose harmful substances into harmless substances by burning incinerated ash etc. at a high temperature for a long time.
  • incinerated ash containing harmful substances generally contains incombustible substances such as metals and glass
  • incombustible substances that do not need to be incinerated are incinerated by toxic substance incinerators. For this reason, a large amount of incinerated substances are incinerated in the toxic substance incinerator, the combustion efficiency is poor, the equipment itself is large, the furnace is easily damaged by high-temperature treatment, and running costs and maintenance costs are low. There was a problem of becoming high.
  • the toxic substance incinerator decomposes harmful substances by burning incinerated ash etc. for a long time at a high incineration temperature, but there is a problem that a large amount of carbon dioxide is released to the outside.
  • the present inventor has considered a harmful substance decomposition treatment apparatus that does not emit carbon dioxide to the outside.
  • the harmful substance decomposition treatment apparatus that does not emit carbon dioxide to the outside it is desired that an object to be treated that does not contain incombustible substances be introduced into the harmful substance decomposition treatment apparatus in order to increase the decomposition treatment efficiency.
  • the materials to be treated are handled conveniently before being put into the harmful substance decomposition treatment device or after a series of transfers after being processed by the harmful substance decomposition treatment device.
  • the present invention solves the above-mentioned problem, and the decomposition of the substance in the harmful substance decomposition treatment apparatus is achieved by converting the substance to be decomposed in the harmful substance decomposition treatment apparatus into granular material from which incombustible substances have been removed. It is an object of the present invention to provide a method for producing granular materials containing harmful substances from incinerated ash or the like, which improves the processing efficiency and facilitates the transportation before and after the toxic substance decomposition treatment apparatus and reduces the associated cost. It is the purpose. [Disclosure of the Invention]
  • the method for producing particulate matter containing harmful substances from incinerated ash etc. is as follows: put incinerated ash containing harmful substances into a water stirrer and stir with water to mix incinerated ash etc. with water or Dissolve and mix incinerated ash etc. or put the dissolved water in a mixer and mix it with the solid material to make a mixture containing harmful substances, put the mixture in a dehydrator to dehydrate, and mix the dewatered mixture with clay It is put into a kneader and kneaded, and the kneaded product is put into a granulator and made into granules. [Brief description of drawings]
  • FIG. 1 is a configuration diagram of an apparatus used in a method for producing a granular material containing a harmful substance from incinerated ash or the like according to the present invention.
  • FIG. 1 is a configuration diagram showing an example of an apparatus for realizing a method for producing a granular material containing a harmful substance from incinerated ash or the like according to the present invention.
  • the apparatus used in the method for producing particulate matter containing harmful substances from incinerated ash or the like includes a receiving hopper 10 for charging an object to be processed, and a lower part of the receiving hopper 10 to be processed.
  • a transfer screw 12 for transferring an object is provided, and a tip of the screw 12 is provided with a supply conveyor 14 extending vertically.
  • a shower 16 is provided near the upper position of the supply conveyor 14, and a water stirrer 18 is provided below the computer 16. Water is supplied to the water agitator 18 from the water circulation device 20 as needed. (The illustration of the water supply passage from the water circulation device 20 to the water agitator 18 is omitted).
  • a vibrating sieve 22 as a sorting means is provided below the water stirrer 18, and two types of introduction passages 24a and 24b are connected from the water stirrer 18 to the vibrating sieve 22. .
  • a mixer 26 is provided below the vibrating sieve 22.
  • a filter dehydrator 28 is provided above the mixer 26 in the horizontal direction.
  • the outlet of the mixer 26 is provided with a lifting means (not shown) such as a hydraulic pump, and the material mixed in the mixer 26 is moved into the filter set dehydrator 28 located above by the lifting means. Let it.
  • the structure of transporting the substance discharged from the mixer 26 to the dehydrator 28 by the ascending means is known, so that illustration and description thereof are omitted.
  • a vacuum pulverizer 30 is provided below the dehydrator 28, a first dryer 32 is provided below the vacuum pulverizer 30, and a granulator 34 is provided below the same.
  • a second dryer 36 is provided below the granulator 34.
  • the objects to be treated put in the receiving hopper 10 are incinerated ash etc. containing harmful substances (generally containing incombustible materials such as metal and glass), but incinerated on the surface of incombustible materials such as metal and glass. Includes ash and the like.
  • the material to be treated is first placed in the receiving hopper 10, transferred to the supply conveyor 14 by the screw 12, transferred upward by the supply conveyor 14, passed through the shutter 16 and into the water agitator 18. It is thrown.
  • the object to be treated introduced into the water agitator 18 is agitated therein together with the water supplied from the water circulator 20.
  • the incinerated ash and the like adhering to the surface of incombustible materials such as glass are washed away with water, and the incinerated ash containing harmful substances is mixed with water. Or be dissolved.
  • a relatively large solid non-combustible material such as metal or glass is introduced from the water stirrer 18 into the vibrating sieve 22 through the introducing passage 24a.
  • the vibrating sieve 22 removes water adhering to incombustibles such as metal and glass, and discharges relatively large solid incombustibles such as metal and glass from an outlet (not shown) of the vibrating sieve 22.
  • Non-combustible substances such as metal and glass discharged to the outside are sent to each reprocessing step.
  • Vibrating sieve 2 Metal ⁇ that is sent from 2 to the reprocessing process
  • Non-combustible materials such as laths are washed with water in a water stirrer 18 and water is dropped by a vibrating sieve 22 so that no harmful substances adhere to the surface.
  • a liquid obtained by mixing or dissolving incineration ash containing harmful substances remaining in the water stirrer 18 is introduced into the vibrating sieve 22 through the introduction passage 24b.
  • incombustible substances such as small metals and glass mixed in the liquid in which incinerated ash and the like are mixed or dissolved are removed. That is, the liquid in which incinerated ash or the like is mixed or dissolved should not contain incombustible substances such as metal and glass.
  • the liquid from which incombustible substances such as metal and glass have been removed is fed into the mixer 26 through the vibrating sieve 22.
  • a solid material for example, a ceramic material such as bentonite
  • incinerated ash containing harmful substances and the like are mixed with a solid material to form a mixture.
  • the solid material is used to solidify incinerated ash containing harmful substances mixed or dissolved in the liquid.
  • the material of the solid material is not limited to the ceramic material. By using the ceramic material as the solid material, the material incinerated by the incinerator can be used as building aggregate.
  • the harmful substances are taken into the mixed substance, and water no longer contains harmful substances. That is, incineration ash and the like containing harmful substances are adsorbed on the mixed substance mixed with the solid material from water.
  • the mixed substance produced in the mixer 26 is put into the dehydrator 28 and dehydrated by the dehydrator 28. Since the mixture contains water, remove as much water as possible with the dehydrator 28. This water does not contain any harmful substances, as they are adsorbed on the mixture.
  • the mixed material is kneaded by a vacuum kneader 30 to make the pellets uniform in hardness.
  • the pellet-shaped mixture is dried by the first dryer 32.
  • the reason why the pellet-type mixed substance is dried by the first dryer 32 is that, when the granules are subsequently formed in the granulator 34, moisture is removed from the pellet-like substance as much as possible. Because it is easy.
  • a granulator 34 After that, it is charged into a granulator 34 to be formed into a granular material as a substance to be incinerated having a predetermined size (for example, a diameter of about 2 cm).
  • the size of the granular material is not particularly limited. This The inside of the granular material contains harmful substances contained in incinerated ash and the like. That is, in the present invention, the harmful substance is confined in the granular material without being emitted to the outside. Granular materials are used because they are easier to transport before and after the toxic substance decomposition treatment device than powdered or liquid incinerated materials. In addition, the use of small granular materials allows the harmful substance decomposition treatment device to efficiently decompose harmful substances contained therein.
  • the granular material sized to a predetermined size by the granulator 34 is further dried by the second dryer 36, and is then supplied to the harmful substance decomposition treatment device.
  • the granular material is dried by the second dryer 36 because the moisture is removed from the granular material as much as possible when the granular material is decomposed by the harmful substance decomposition treatment device, thereby improving the processing efficiency. It is necessary for
  • non-combustible substances such as metal and glass are removed from incinerated ash containing harmful substances. It is used to make granular materials that contain harmful substances. When making these granules, the incombustibles removed and the dehydrated water do not contain harmful substances. In other words, it does not leak harmful substances to the outside and does not pollute the air or water.
  • the weight of the particulate matter decomposed by the harmful substance decomposition treatment apparatus can be reduced, so that the harmful substance decomposition treatment apparatus can be downsized and the harmful substance can be reduced.
  • the manufacturing cost and the running cost of the decomposition processing apparatus can be reduced.
  • it since it is a granular material, it can be easily transferred before and after the harmful substance decomposition treatment device, and the efficiency of the decomposition treatment in the harmful substance decomposition treatment device can be improved as compared with powdery or liquid ones. .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Civil Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

La présente invention concerne un procédé pour produire des granulés contenant des substances nocives à partir de cendres d'incinération ou de matière similaire. Ce procédé consiste à charger des cendres d'incinération ou une matière similaire contenant des substances nocives dans un réservoir à agitation (18) qui contient de l'eau, à agiter les cendres d'incinération ou la matière similaire avec l'eau, afin de former un mélange ou une solution, débarrassant alors les matières incombustibles des substances nocives contenues dans les cendres d'incinération ou dans la matière similaire, à séparer le produit formé dans le réservoir à agitation (18) afin d'obtenir les matières incombustibles libérées des substances nocives et un liquide contenant les substances nocives, au moyen d'un tamis vibrant (22), à retirer les matières incombustibles, à mélanger dans un mélangeur (26) le liquide contenant les substances nocives et une matière solide, telle qu'une matière céramique, afin de préparer une matière mixte à l'intérieur de laquelle les substances nocives sont intégrées, à déshydrater cette matière mixte à l'aide d'une machine de déshydratation (28), à malaxer la matière déshydratée à l'aide d'un malaxeur sous vide (30), à sécher la matière malaxée à l'aide d'un sécheur (32), puis à préparer des granulés à partir de cette matière séchée à l'aide d'un appareil granulateur (34).
PCT/JP2002/012097 2001-11-21 2002-11-20 Procede pour produire des granules contenant des substances nocives a partir de cendres d'incineration ou de matiere similaire WO2003043753A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001356443A JP2003154345A (ja) 2001-11-21 2001-11-21 焼却灰等から有害物質を含有する粒状物を製造する方法
JP2001-356443 2001-11-21

Publications (1)

Publication Number Publication Date
WO2003043753A1 true WO2003043753A1 (fr) 2003-05-30

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JP (1) JP2003154345A (fr)
WO (1) WO2003043753A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113275091A (zh) * 2021-05-26 2021-08-20 南京金乾盛建设工程有限公司 一种用于污染土壤深层搅拌热空气注入的修复系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101458568B1 (ko) 2013-02-21 2014-11-05 이치덕 소각재의 유해 물질 처리 방법

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836969A (ja) * 1981-08-24 1983-03-04 樋　幸四郎 廃棄物焼却灰の焼成結合法
US5128068A (en) * 1990-05-25 1992-07-07 Westinghouse Electric Corp. Method and apparatus for cleaning contaminated particulate material
EP0572813A1 (fr) * 1992-06-05 1993-12-08 Von Roll Umwelttechnik AG Procédé pour l'élimination des résidus de gaz de fumée
JPH07290025A (ja) * 1994-04-27 1995-11-07 Seihachi Hoshi 不用材及び廃棄物処理システム
JP2001121136A (ja) * 1999-10-21 2001-05-08 Atorasukoa:Kk 土壌洗浄装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836969A (ja) * 1981-08-24 1983-03-04 樋　幸四郎 廃棄物焼却灰の焼成結合法
US5128068A (en) * 1990-05-25 1992-07-07 Westinghouse Electric Corp. Method and apparatus for cleaning contaminated particulate material
EP0572813A1 (fr) * 1992-06-05 1993-12-08 Von Roll Umwelttechnik AG Procédé pour l'élimination des résidus de gaz de fumée
JPH07290025A (ja) * 1994-04-27 1995-11-07 Seihachi Hoshi 不用材及び廃棄物処理システム
JP2001121136A (ja) * 1999-10-21 2001-05-08 Atorasukoa:Kk 土壌洗浄装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113275091A (zh) * 2021-05-26 2021-08-20 南京金乾盛建设工程有限公司 一种用于污染土壤深层搅拌热空气注入的修复系统

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