JP2014087755A - Production apparatus and method of construction material - Google Patents

Production apparatus and method of construction material Download PDF

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JP2014087755A
JP2014087755A JP2012240037A JP2012240037A JP2014087755A JP 2014087755 A JP2014087755 A JP 2014087755A JP 2012240037 A JP2012240037 A JP 2012240037A JP 2012240037 A JP2012240037 A JP 2012240037A JP 2014087755 A JP2014087755 A JP 2014087755A
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construction material
construction
plasma
unburned carbon
raw material
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JP6061289B2 (en
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Tomofumi Kikuzaki
智文 菊崎
Shuichi Nakano
修一 中野
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Taiheiyo Cement Corp
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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
    • 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

Abstract

PROBLEM TO BE SOLVED: To effectively utilize fly ash and the like as a construction material for a cement admixture and the like by suppressing an influence on an appearance of a product to be minimized.SOLUTION: A production apparatus 1 of a construction material comprises: a plasma irradiation device 3 irradiating a raw material A1 (fly ash and the like) containing unburned carbon for the construction material with plasma; and a decarbonation device to remove the unburned carbon from the raw material containing the unburned carbon for the construction material. The plasma irradiation device can irradiate the raw material for the construction material after the treatment of decarbonation with plasma. The unburned carbon existing in the raw material for the construction material is reformed from hydrophobicity to hydrophilicity by irradiating the raw material for the construction material with plasma. The floating of the unburned carbon on the surface of the product when a construction material A2 after reforming is utilized can be prevented.

Description

本発明は、建設材料の製造装置及び製造方法に関し、特に、石炭焚き火力発電所等で発生したフライアッシュ等をセメント用混合材等の建設材料として有効利用する装置及び方法に関する。   The present invention relates to an apparatus and method for manufacturing a construction material, and more particularly to an apparatus and method for effectively using fly ash generated in a coal-fired thermal power plant or the like as a construction material such as a cement mixture.

従来、石炭焚き火力発電所等で発生したフライアッシュは、セメント及び人工軽量骨材の原料、セメント用混合材、コンクリート用混和材等に利用されている。この際、フライアッシュ中に未燃カーボンが多く含まれると、上記用途に使用した際に、コンクリートの作業性が低下したり、人工軽量骨材の品質が低下するため、未燃カーボン含有率の高いフライアッシュは有効利用することができず、産業廃棄物として埋め立て処理されていた。   Conventionally, fly ash generated in a coal-fired thermal power plant or the like has been used as a raw material for cement and artificial lightweight aggregate, a cement mixture, a concrete admixture, or the like. At this time, if a large amount of unburned carbon is contained in the fly ash, when used for the above-mentioned purposes, the workability of concrete deteriorates or the quality of the artificial lightweight aggregate deteriorates. High fly ash could not be used effectively and was landfilled as industrial waste.

そこで、例えば、特許文献１には、フライアッシュに水を加えてスラリーとし、スラリーに捕集剤を添加し、スラリー及び捕集剤に剪断力を付与して表面改質を行った後、浮選工程において、気泡にフライアッシュの未燃カーボンを付着させて浮上させるフライアッシュ中の未燃カーボンの除去方法が記載されている。   Therefore, for example, in Patent Document 1, water is added to fly ash to form a slurry, a collecting agent is added to the slurry, a shearing force is applied to the slurry and the collecting agent, surface modification is performed, and then floating is performed. In the selection process, a method for removing unburned carbon in fly ash is described in which the unburned carbon of fly ash is attached to the bubbles and floats.

また、特許文献２には、フライアッシュを粉砕してフライアッシュ粒子の内部に残存する未燃カーボンを露出させ、未燃カーボンの回収率を向上させるフライアッシュ中の未燃カーボン除去装置及び除去方法が記載されている。   Further, Patent Document 2 discloses a device and a method for removing unburned carbon in fly ash by which fly ash is pulverized to expose unburned carbon remaining in the fly ash particles to improve the recovery rate of unburned carbon. Is described.

特許第３６１３３４７号公報Japanese Patent No. 3613347 特開２００７−２２２８００号公報JP 2007-222800 A

しかし、上記従来技術等に記載の脱炭処理を行っても、未燃カーボンを完全に除去することはできず、脱炭処理後のフライアッシュをセメント用混合材等に利用しようとすると、僅かに残存する未燃カーボンの量的な変動が製品の見栄えに影響することなどの理由で、フライアッシュの有効利用が遅れている。また、未燃カーボン除去効率のさらなる向上を図ろうとすると、処理設備の設置コストや、運転コストが増大し、他のセメント用混合材等との比較において利点が失われるという問題があった。   However, even if the decarburization treatment described in the above prior art is performed, the unburned carbon cannot be completely removed, and if the fly ash after the decarburization treatment is used for a cement mixture or the like, The effective use of fly ash has been delayed because the amount of unburned carbon remaining in the product affects the appearance of the product. Further, when trying to further improve the efficiency of removing unburned carbon, there is a problem that the installation cost of the processing equipment and the operation cost increase, and the advantage is lost in comparison with other cement-mixing materials.

そこで、本発明は、上記従来の技術における問題点に鑑みてなされたものであって、低コストで、かつ製品の見栄えへの影響を最小限に抑えることで、フライアッシュ等をセメント用混合材等の建設材料として有効利用することを目的とする。   Therefore, the present invention has been made in view of the problems in the above-described conventional technology, and is low cost and minimizes the influence on the appearance of the product, so that fly ash and the like can be mixed with cement. It is intended to be used effectively as a construction material.

上記目的を達成するため、本発明は、建設材料の製造装置であって、未燃カーボンを含有する建設材料用原料にプラズマを照射するプラズマ照射装置を備えることを特徴とする。   In order to achieve the above object, the present invention is a construction material manufacturing apparatus comprising a plasma irradiation apparatus that irradiates plasma to a raw material for construction material containing unburned carbon.

本発明によれば、建設材料用原料にプラズマを照射することにより、建設材料用原料に含まれる未燃カーボンを疎水性から親水性へと改質することができるため、この改質後の建設材料を利用した際に、未燃カーボンの製品表面への浮き上がりを防止することができる。これにより、低コストで、製品の見栄えへの影響を最小限に抑えることができる。   According to the present invention, the unburned carbon contained in the construction material raw material can be modified from hydrophobic to hydrophilic by irradiating the construction material raw material with plasma. When the material is used, it is possible to prevent the unburned carbon from floating on the product surface. Thereby, the influence on the appearance of the product can be minimized at a low cost.

上記建設材料の製造装置において、未燃カーボンを含有する建設材料用原料から該未燃カーボンを除去する脱炭装置を備え、前記プラズマ照射装置は、該脱炭装置で脱炭処理した後の建設材料用原料にプラズマを照射することができる。これにより、脱炭処理後の建設材料用原料に残存する未燃カーボンを疎水性から親水性へと改質することができ、改質後の建設材料を利用した際に、未燃カーボンの製品表面への浮き上がりを防止することができる。   The construction material manufacturing apparatus includes a decarburization device that removes unburned carbon from a raw material for construction material containing unburned carbon, and the plasma irradiation device is a construction after decarburization processing is performed by the decarburization device. The raw material for the material can be irradiated with plasma. As a result, the unburned carbon remaining in the raw material for construction materials after decarburization treatment can be modified from hydrophobic to hydrophilic, and when the modified construction material is used, the unburned carbon product Lifting to the surface can be prevented.

上記建設材料の製造装置において、前記脱炭装置を乾式とし、前記プラズマ照射装置を、前記乾式脱炭装置による脱炭処理後の建設材料用原料を搬送する搬送装置の上方に配置し、該搬送装置によって搬送中の前記建設材料用原料にプラズマを照射するように構成することができる。   In the construction material manufacturing apparatus, the decarburization apparatus is a dry type, and the plasma irradiation apparatus is disposed above a conveyance apparatus that conveys the building material raw material after the decarburization treatment by the dry decarburization apparatus, and the conveyance The apparatus can be configured to irradiate the construction material raw material being conveyed with plasma.

また、前記脱炭装置は、浮選機を備え、前記プラズマ照射装置は、前記浮選機によって脱炭処理されたスラリー状の建設材料用原料にプラズマを照射することもできる。   The decarburization apparatus may include a flotation machine, and the plasma irradiation apparatus may irradiate plasma on the slurry-like raw material for construction material decarburized by the flotation machine.

さらに、脱炭装置は、浮選機と、該浮選機によって脱炭処理されたスラリー状の建設材料用原料を貯留する浮遊槽とを備え、前記プラズマ照射装置は、前記浮遊槽の上方に配置され、前記浮遊槽の液面に浮遊する未燃カーボンにプラズマを照射することができる。浮遊槽の液面に浮遊する未燃カーボンにプラズマを照射することで、未燃カーボンを疎水性から親水性へと効率よく改質することができる。   Further, the decarburization apparatus includes a flotation machine and a floating tank for storing slurry-like raw materials for construction material decarburized by the flotation machine, and the plasma irradiation apparatus is disposed above the floating tank. It is possible to irradiate the unburned carbon that is disposed and floats on the liquid surface of the floating tank with plasma. By irradiating the unburned carbon floating on the liquid surface of the floating tank with plasma, the unburned carbon can be efficiently modified from hydrophobic to hydrophilic.

また、前記建設材料用原料をフライアッシュ又は石膏とし、建設材料としてセメント混合材又はコンクリート混和材を得ることができ、改質後のフライアッシュ等をセメント用混合材等として利用した際に、未燃カーボンの製品表面への浮き上がりを防止することで、フライアッシュ等の有効利用を図ることができる。   In addition, the raw material for construction material can be fly ash or gypsum, and a cement mixed material or a concrete admixture can be obtained as the construction material. When the modified fly ash or the like is used as a cement mixed material or the like, By preventing the fuel carbon from floating on the product surface, it is possible to effectively use fly ash and the like.

さらに、本発明は、建設材料の製造方法であって、未燃カーボンを含有する建設材料用原料にプラズマを照射することを特徴とする。本発明によれば、上記発明と同様に、改質後の建設材料を利用した際に、未燃カーボンの製品表面への浮き上がりを防止し、低コストで、製品の見栄えへの影響を最小限に抑えることができる。   Furthermore, the present invention is a method for manufacturing a construction material, wherein the construction material material containing unburned carbon is irradiated with plasma. According to the present invention, as in the case of the above-described invention, when the modified construction material is used, the unburned carbon is prevented from floating on the product surface, and the influence on the appearance of the product is minimized at a low cost. Can be suppressed.

上記建設材料の製造方法において、未燃カーボンを含有する建設材料用原料を脱炭処理し、該脱炭処理した後の建設材料用原料にプラズマを照射することができる。これにより、脱炭処理後の建設材料用原料に残存する未燃カーボンを疎水性から親水性へと改質し、改質後の建設材料を利用した際に、未燃カーボンの製品表面への浮き上がりを防止することができる。   In the construction material manufacturing method, the construction material raw material containing unburned carbon can be decarburized, and the construction material raw material after the decarburization treatment can be irradiated with plasma. As a result, the unburned carbon remaining in the raw material for construction materials after decarburization is modified from hydrophobic to hydrophilic, and when the modified construction material is used, the unburned carbon is applied to the product surface. Lifting can be prevented.

上記建設材料の製造方法において、前記建設材料用原料を乾式にて脱炭処理し、該脱炭処理後の建設材料用原料に前記プラズマを照射することができる。   In the construction material manufacturing method, the construction material raw material may be decarburized by a dry process, and the construction material raw material after the decarburization treatment may be irradiated with the plasma.

また、前記建設材料用原料を湿式にて脱炭処理し、該脱炭処理後のスラリー状の建設材料用原料に前記プラズマを照射することもできる。   Moreover, the said raw material for construction materials can be decarburized by a wet process, and the said plasma can be irradiated to the slurry-like raw material for construction materials after this decarburization process.

さらに、前記建設材料用原料をフライアッシュ又は石膏とし、建設材料としてセメント混合材又はコンクリート混和材を得ることができ、フライアッシュ等の有効利用を図ることができる。   Furthermore, the raw material for construction material can be fly ash or gypsum, and a cement mixed material or a concrete admixture can be obtained as the construction material, so that effective use of fly ash or the like can be achieved.

以上のように、本発明によれば、低コストで、かつ製品の見栄えへの影響を最小限に抑えることで、フライアッシュ等をセメント用混合材等の建設材料として有効利用することが可能となる。   As described above, according to the present invention, it is possible to effectively use fly ash or the like as a construction material such as a cement mixing material at a low cost and by minimizing the influence on the appearance of the product. Become.

本発明に係る建設材料の製造装置の第１の実施形態を示す全体構成図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a whole block diagram which shows 1st Embodiment of the manufacturing apparatus of the construction material which concerns on this invention. 本発明に係る建設材料の製造装置の第２の実施形態を示す全体構成図である。It is a whole block diagram which shows 2nd Embodiment of the manufacturing apparatus of the construction material which concerns on this invention.

次に、本発明を実施するための形態について、図面を参照しながら詳細に説明する。尚、以下の説明においては、フライアッシュを用いたセメント用混合材の製造に本発明を適用した場合を例にとって説明する。   Next, an embodiment for carrying out the present invention will be described in detail with reference to the drawings. In the following description, the case where the present invention is applied to the production of a cement mixture using fly ash will be described as an example.

図１は、本発明に係る建設材料の製造装置の第１の実施形態を示し、この製造装置１は、脱炭処理されたフライアッシュＡ１を搬送するベルトコンベア（搬送装置）２と、搬送中のフライアッシュＡ１にプラズマを照射するプラズマ照射装置３とで構成される。脱炭処理されたフライアッシュＡ１は、乾式の脱炭処理装置によって得られたものであってもよく、湿式の脱炭処理装置によって脱炭処理された後、乾燥して得られたものであってもよい。   FIG. 1 shows a first embodiment of a construction material manufacturing apparatus according to the present invention, which includes a belt conveyor (transport apparatus) 2 that transports decarburized fly ash A1, and a transport apparatus. And a plasma irradiation apparatus 3 for irradiating the fly ash A1 with plasma. The deashed fly ash A1 may be obtained by a dry decarburization processing apparatus, and is obtained by drying after being decarburized by a wet decarburization processing apparatus. May be.

プラズマ照射装置３は、フライアッシュＡ１に含まれる未燃カーボンを疎水性から親水性に改質するために設けられる。このプラズマ照射装置３は、１〜５０ｋＶの電圧のものを使用することができ、照射するプラズマとしては、酸素を含むプラズマであれば特に限定されない。例えば、亜酸化窒素（Ｎ2Ｏ）、一酸化炭素（ＣＯ）、二酸化炭素（セメント用混合材Ｏ2）及び水蒸気（Ｈ2Ｏ）等のプラズマであってもよい。 The plasma irradiation apparatus 3 is provided to modify unburned carbon contained in the fly ash A1 from hydrophobic to hydrophilic. The plasma irradiation apparatus 3 can use a voltage of 1 to 50 kV, and the plasma to be irradiated is not particularly limited as long as it contains oxygen. For example, plasma such as nitrous oxide (N 2 O), carbon monoxide (CO), carbon dioxide (mixing material for cement O 2 ), and water vapor (H 2 O) may be used.

上記構成を有する製造装置１によれば、フライアッシュＡ１中に含まれる疎水性の未燃カーボンを親水性に改質することができ、この改質後のフライアッシュＡ２をセメント用混合材として利用した際に、未燃カーボンがコンクリート全体に分散し、製品の表面上に未燃カーボン（黒点）が浮き上がるのを防止することができ、製品の見栄えを向上させることができる。   According to the manufacturing apparatus 1 having the above-described configuration, the hydrophobic unburned carbon contained in the fly ash A1 can be modified to be hydrophilic, and the modified fly ash A2 is used as a cement mixture. In this case, the unburned carbon is dispersed throughout the concrete, and the unburned carbon (black spots) can be prevented from floating on the surface of the product, so that the appearance of the product can be improved.

次に、本発明に係る建設材料の製造装置の第２の実施形態について、図２を参照しながら説明する。以下の説明においても、フライアッシュを用いたセメント用混合材の製造に本発明を適用した場合を例にとって説明する。   Next, a second embodiment of the construction material manufacturing apparatus according to the present invention will be described with reference to FIG. Also in the following description, the case where the present invention is applied to the production of a cement mixed material using fly ash will be described as an example.

この製造装置１１は、フライアッシュを含むスラリーＳ１に気泡を発生させるための調整槽１２と、スラリーＳ２に含まれる気泡に未燃カーボンを付着させて浮上させることにより、未燃カーボンを分離する浮選機１４と、浮選機１４からのテールＴを貯留する浮遊荷電槽（以下、「浮遊槽」という）１６と、浮遊槽１６の上方に配置され、未燃カーボンにプラズマを照射するプラズマ照射装置３と、プラズマ照射後のスラリーＳ３を固液分離するフィルタープレス１９とで構成される。   The manufacturing apparatus 11 includes a regulating tank 12 for generating bubbles in the slurry S1 containing fly ash, and a float that separates unburned carbon by attaching unburned carbon to the bubbles contained in the slurry S2 and causing the bubbles to float. Selector 14, a floating charge tank (hereinafter referred to as "floating tank") 16 for storing tail T from flotation machine 14, and plasma irradiation for irradiating unburned carbon with plasma, arranged above floating tank 16 It comprises an apparatus 3 and a filter press 19 for solid-liquid separation of the slurry S3 after plasma irradiation.

調整槽１２は、図示しないスラリータンクから供給されたスラリーＳ１に、起泡剤Ｂを添加してこれらを混合するものであって、内部に撹拌羽根を備える。   The adjustment tank 12 adds the foaming agent B to the slurry S1 supplied from a slurry tank (not shown) and mixes them, and includes a stirring blade inside.

浮選機１４は、気泡にスラリーＳ２中の未燃カーボンを付着させて浮上させ、未燃カーボンを含むフロスと、未燃カーボンが除去されたフライアッシュを含むテールＴとに分離するものであり、浮選機１４の上方には、泡を発生させるための空気Ａを供給する空気供給設備（不図示）が設けられる。   The flotation machine 14 causes the unburned carbon in the slurry S2 to adhere to the bubbles and floats up, and separates into a floss containing unburned carbon and a tail T containing fly ash from which unburned carbon has been removed. An air supply facility (not shown) for supplying air A for generating bubbles is provided above the flotation machine 14.

浮遊槽１６は、浮選機１４からのテールＴを貯留すると共に、テールＴに含まれる未燃カーボンを液面に浮遊させるために設けられる。   The floating tank 16 is provided to store the tail T from the flotation machine 14 and to float unburned carbon contained in the tail T on the liquid surface.

プラズマ照射装置３は、浮遊槽１６の上方に配置され、浮遊槽１６の液面に浮遊する未燃カーボンに対してプラズマを照射するために設けられ、図１に示した第１の実施形態におけるプラズマ照射装置３と同様の構成を有する。   The plasma irradiation device 3 is disposed above the floating tank 16 and is provided for irradiating the unburned carbon floating on the liquid surface of the floating tank 16 with plasma. In the first embodiment shown in FIG. It has the same configuration as the plasma irradiation apparatus 3.

フィルタープレス１９は、浮選機１４からのテールＴを固液分離するために備えられる。   The filter press 19 is provided for solid-liquid separation of the tail T from the flotation machine 14.

次に、上記の製造装置１１を用いた本発明に係るフライアッシュの処理方法について説明する。   Next, the processing method of the fly ash which concerns on this invention using said manufacturing apparatus 11 is demonstrated.

図示しないスラリータンクにおいて生成されたフライアッシュを含むスラリーＳ１を調整槽１２に投入すると共に、調整槽１２に起泡剤Ｂを添加する。   The slurry S1 containing fly ash generated in a slurry tank (not shown) is charged into the adjustment tank 12 and the foaming agent B is added to the adjustment tank 12.

次に、浮選機１４において、スラリーＳ２中の親油性成分を気泡に付着させ、未燃カーボンを含むフロスと、未燃カーボンが略々除去された親水性成分としてのフライアッシュを含むテールＴとに分離する。   Next, in the flotation machine 14, the lipophilic component in the slurry S <b> 2 is attached to the bubbles, and the tail T includes floss containing unburned carbon and fly ash as a hydrophilic component from which unburned carbon is substantially removed. And to separate.

浮選機１４からのテールＴには、微量の未燃カーボンが残留しているため、このテールＴを浮遊槽１６に供給し、テールＴに含まれる未燃カーボンを浮遊させる。この浮遊している未燃カーボンに対してプラズマ照射装置３を介してプラズマを照射し、未燃カーボンを疎水性から親水性へと改質する。   Since a small amount of unburned carbon remains in the tail T from the flotation machine 14, this tail T is supplied to the floating tank 16, and the unburned carbon contained in the tail T is floated. The floating unburned carbon is irradiated with plasma through the plasma irradiation device 3 to modify the unburned carbon from hydrophobic to hydrophilic.

次に、浮遊槽１６からのスラリーＳ３をフィルタープレス１９に供給して固液分離し、固体側に親水性へ改質された未燃カーボンを含むフライアッシュを得ることができ、このフライアッシュをセメント用混合材として利用することで、製品表面上への未燃カーボンの浮き上がりを防止し、製品の見栄えを向上させることができる。   Next, the slurry S3 from the floating tank 16 is supplied to the filter press 19 for solid-liquid separation, and a fly ash containing unburned carbon modified to be hydrophilic on the solid side can be obtained. By using it as a cement-mixing material, it is possible to prevent unburned carbon from floating on the surface of the product and improve the appearance of the product.

尚、上記実施の形態では、フライアッシュを用いたセメント用混合材の製造に本発明を適用した場合を例示したが、未燃カーボンを親水性へ改質したフライアッシュをコンクリート混和材として使用し、同様の効果を奏することもできる。   In the above embodiment, the case where the present invention is applied to the production of a cement admixture using fly ash is exemplified, but fly ash obtained by modifying unburned carbon to be hydrophilic is used as a concrete admixture. The same effect can be achieved.

また、フライアッシュ以外にも、石膏を脱炭処理した後プラズマを照射し、石膏に残存する未燃カーボンを疎水性から親水性へと改質し、セメントクリンカと共に粉砕してセメントを製造することができる。   In addition to fly ash, gypsum is decarburized and then irradiated with plasma to change the unburned carbon remaining in the gypsum from hydrophobic to hydrophilic and pulverize with cement clinker to produce cement. Can do.

さらに、フライアッシュや石膏に限らず、疎水性の未燃カーボンを含む建設材料用原料を脱炭処理し、又は脱炭処理をせずに、プラズマを照射して未燃カーボンを親水性に改質することで、製品表面上への未燃カーボンの浮き上がりを防止し、製品の見栄えを向上させることが可能となる。   In addition to fly ash and gypsum, raw materials for construction materials containing hydrophobic unburned carbon are decarburized, or without decarburization, plasma is irradiated to make unburned carbon hydrophilic. By improving the quality, it is possible to prevent the unburned carbon from floating on the surface of the product and improve the appearance of the product.

１ 建設材料の製造装置
２ ベルトコンベア
３ プラズマ照射装置
１１ 建設材料の製造装置
１２ 調整槽
１４ 浮選機
１６ 浮遊槽
１９ フィルタープレス
Ａ 空気
Ａ１、Ａ２ フライアッシュ
Ｂ 起泡剤
Ｓ１〜Ｓ３ スラリー
Ｔ テール DESCRIPTION OF SYMBOLS 1 Construction material manufacturing apparatus 2 Belt conveyor 3 Plasma irradiation apparatus 11 Construction material manufacturing apparatus 12 Adjustment tank 14 Flotation machine 16 Floating tank 19 Filter press A Air A1, A2 Fly ash B Foaming agents S1-S3 Slurry T Tail

Claims (11)

未燃カーボンを含有する建設材料用原料にプラズマを照射するプラズマ照射装置を備えることを特徴とする建設材料の製造装置。   A construction material manufacturing apparatus comprising a plasma irradiation device for irradiating a raw material for construction material containing unburned carbon with plasma. 未燃カーボンを含有する建設材料用原料から該未燃カーボンを除去する脱炭装置を備え、
前記プラズマ照射装置は、該脱炭装置で脱炭処理した後の建設材料用原料にプラズマを照射することを特徴とする請求項１に記載の建設材料の製造装置。 Equipped with a decarburization device for removing the unburned carbon from the raw material for construction materials containing unburned carbon,
The said plasma irradiation apparatus irradiates plasma to the raw material for construction materials after decarburizing with this decarburization apparatus, The manufacturing apparatus of the construction material of Claim 1 characterized by the above-mentioned. 前記脱炭装置は、乾式であって、
前記プラズマ照射装置は、前記乾式脱炭装置による脱炭処理後の建設材料用原料を搬送する搬送装置の上方に配置され、該搬送装置によって搬送中の前記建設材料用原料にプラズマを照射することを特徴とする請求項２に記載の建設材料の製造装置。 The decarburizer is a dry type,
The said plasma irradiation apparatus is arrange | positioned above the conveying apparatus which conveys the raw material for construction materials after the decarburization process by the said dry decarburization apparatus, and irradiates a plasma to the said raw material for construction materials currently conveyed by this conveying apparatus The construction material manufacturing apparatus according to claim 2. 前記脱炭装置は、浮選機を備え、
前記プラズマ照射装置は、前記浮選機によって脱炭処理されたスラリー状の建設材料用原料にプラズマを照射することを特徴とする請求項２に記載の建設材料の製造装置。 The decarburizer includes a flotation machine,
The said plasma irradiation apparatus irradiates plasma to the slurry-like raw material for construction materials decarburized by the said flotation machine, The manufacturing apparatus of the construction material of Claim 2 characterized by the above-mentioned. 前記脱炭装置は、浮選機と、該浮選機によって脱炭処理されたスラリー状の建設材料用原料を貯留する浮遊槽とを備え、
前記プラズマ照射装置は、前記浮遊槽の上方に配置され、前記浮遊槽の液面に浮遊する未燃カーボンにプラズマを照射することを特徴とする請求項２に記載の建設材料の製造装置。 The decarburization apparatus includes a flotation machine, and a floating tank that stores slurry-like raw materials for construction material decarburized by the flotation machine,
The said plasma irradiation apparatus is arrange | positioned above the said floating tank, and irradiates a plasma to the unburned carbon which floats on the liquid level of the said floating tank, The manufacturing apparatus of the construction material of Claim 2 characterized by the above-mentioned. 前記建設材料用原料はフライアッシュ又は石膏であって、建設材料としてセメント混合材又はコンクリート混和材を得ることを特徴とする請求項１乃至５のいずれかに記載の建設材料の製造装置。   6. The construction material manufacturing apparatus according to claim 1, wherein the construction material raw material is fly ash or gypsum, and a cement mixed material or a concrete admixture is obtained as the construction material. 未燃カーボンを含有する建設材料用原料にプラズマを照射することを特徴とする建設材料の製造方法。   A method for producing a construction material, comprising irradiating a raw material for construction material containing unburned carbon with plasma. 未燃カーボンを含有する建設材料用原料を脱炭処理し、
該脱炭処理した後の建設材料用原料にプラズマを照射することを特徴とする請求項７に記載の建設材料の製造方法。 Decarburizing raw materials for construction materials containing unburned carbon,
The construction material manufacturing method according to claim 7, wherein the construction material material after the decarburization treatment is irradiated with plasma. 前記建設材料用原料を乾式にて脱炭処理し、該脱炭処理後の建設材料用原料に前記プラズマを照射することを特徴とする請求項８に記載の建設材料の製造方法。   9. The construction material manufacturing method according to claim 8, wherein the construction material material is decarburized by a dry process, and the construction material material after the decarburization treatment is irradiated with the plasma. 前記建設材料用原料を湿式にて脱炭処理し、該脱炭処理後のスラリー状の建設材料用原料に前記プラズマを照射することを特徴とする請求項８に記載の建設材料の製造方法。   9. The construction material manufacturing method according to claim 8, wherein the construction material material is decarburized by a wet process, and the plasma is irradiated to the slurry-like construction material material after the decarburization process. 前記建設材料用原料はフライアッシュ又は石膏であって、建設材料としてセメント混合材又はコンクリート混和材を得ることを特徴とする請求項８、９又は１０に記載の建設材料の製造方法。   The method for manufacturing a construction material according to claim 8, 9 or 10, wherein the raw material for construction material is fly ash or gypsum, and a cement mixed material or a concrete admixture is obtained as the construction material.
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