JP2019084494A - Recycling system of waste gypsum board, recycling method, raw material of pellet, production method of pellet and pellet - Google Patents
Recycling system of waste gypsum board, recycling method, raw material of pellet, production method of pellet and pellet Download PDFInfo
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Description
本発明は、建設廃材等の一部として排出される廃石膏ボードを破砕して得られる石膏付き紙材から、さらに紙材と石膏とを分離して再生利用可能とする廃石膏ボードのリサイクルシステム、リサイクル方法、並びにペレットの原材料、ペレットの製造方法及びこれらにより製造されるペレットに関する。 The present invention is a waste gypsum board recycling system that separates the paper material and gypsum from the gypsum-coated paper material obtained by crushing waste gypsum board discharged as a part of construction waste material etc., and enables recycling. The present invention relates to a recycling method, a raw material for pellets, a method for producing pellets, and pellets produced thereby.
従来、廃石膏ボードは一般的に、粉砕して剥離紙と石膏部分とを分離したうえで、焼却か埋立処理をしている。ところが、剥離紙を焼却した場合、ＣＯ２の発生により温暖化の原因ともなり得るという問題があり、また、埋立処理をした場合には、石膏が硫酸物を多く含むことから、埋立処理された後に紙や紙に付着した石膏が雨水等と反応して土壌汚染を招いていた。 Conventionally, waste gypsum board is generally crushed and separated into release paper and gypsum parts, and then incinerated or landfilled. However, when release paper is incinerated, there is a problem that it may be a cause of global warming due to the generation of CO 2 , and when it is subjected to landfill treatment, gypsum is landfill-treated because it contains a large amount of sulfuric acid. Paper or paper plaster adhering to the paper later reacted with rainwater and the like, causing soil contamination.
これに対して、従前より廃石膏ボードのリサイクルを図るべく、現在大量に排出される建築廃材としての使用済み石膏ボードと、同じく大量に排出されるペットボトルのキャップなどに代表される樹脂成形物とから、樹脂素材をリサイクル製品として製造し、廃棄物の減少に寄与させるとともに、リサイクル製品のコストを低減できる樹脂素材及びその製造方法が提案されている（例えば、特許文献１参照。）。 On the other hand, in order to recycle waste gypsum board from before, resin moldings represented by used gypsum board as a construction waste material which is now discharged in large quantities, and caps of plastic bottles which are also discharged in large quantities. Therefore, a resin material and a method for producing the same have been proposed which can produce a resin material as a recycled product and contribute to the reduction of waste and reduce the cost of the recycled product (see, for example, Patent Document 1).
この特許文献１に開示されたリサイクル装置は、使用済みオレフィン系樹脂成形物と使用済み石膏ボードと混合し、オレフィン系樹脂成分と石膏成分と繊維状セルロース成分とが混合された木質調の質感を有する樹脂素材を製造するものであり、オレフィン系合成樹脂成形物と石膏ボードとを撹拌する機能を有する混合装置内に順次に供給し、混合装置内で撹拌操作を行いつつ、オレフィン系合成樹脂を粉砕溶融するとともに、石膏ボードを粉砕して粉体状の石膏成分と繊維状のセルロース成分とに分離しながら、これらの３成分を混合処理する。 The recycling device disclosed in Patent Document 1 mixes wood with a used olefin resin molded product and a used gypsum board, and has a wood-like texture in which an olefin resin, a gypsum component, and a fibrous cellulose component are mixed. The resin material is produced, and the olefin-based synthetic resin is sequentially supplied into the mixing device having the function of stirring the olefin-based synthetic resin molding and the gypsum board, and the stirring operation is performed in the mixing device. These three components are mixed and processed while being crushed and melted, and the gypsum board is crushed to be separated into a powdery gypsum component and a fibrous cellulose component.
しかしながら、上述した特許文献１に開示された技術は、石膏ボードを粉砕して粉体状の石膏成分と繊維状のセルロース成分とに分離するものであるが、単に石膏ボードを粉砕するのみでは、必要以上の石膏粉や剥離紙が混入して生成された樹脂素材の強度が十分に得られなかったり、逆に石膏粉が少なくなり樹脂成分が多くなりすぎて材料として必要な特性が得られなかったりなどの問題があった。 However, the technology disclosed in Patent Document 1 mentioned above is to pulverize gypsum board and separate it into powdery gypsum component and fibrous cellulose component, but only by crushing gypsum board, The strength of the resin material produced by mixing with excess gypsum powder and release paper is not sufficiently obtained, or conversely, the amount of gypsum powder decreases and the resin component becomes too large to obtain the necessary characteristics as a material There were problems such as
そこで、本発明は以上の点に鑑みてなされたもので、廃石膏ボードを破砕して得られる石膏付き紙材から、紙材と石膏粉を再生利用可能とする際、適量の石膏粉や剥離紙を回収して、これらを用いて生成された樹脂素材について適正な強度や特性を得ることのできる廃石膏ボードのリサイクルシステム、リサイクル方法、並びにペレットの原材料、ペレットの製造方法及びこれらにより製造されるペレットを提供することをその課題とする。 Therefore, the present invention has been made in view of the above points, and when paper material and gypsum powder can be recycled from paper with gypsum obtained by crushing waste gypsum board, appropriate amounts of gypsum powder and peeling are made The waste gypsum board recycling system which can recover paper and obtain appropriate strength and characteristics of resin materials produced using these, recycling method, raw material of pellets, method of producing pellets, and production by these The task is to provide
上記課題を解決するために、本発明の廃石膏ボードのリサイクルシステムは、廃石膏ボードを破砕して分離される石膏付き紙材から、さらに所定粒径以下の石膏粉を除去する石膏粉除去部と、石膏粉除去部における残留物に含まれ、微細な石膏粉が付着した剥離紙を除去する剥離紙分離部と、剥離紙が除去された後の残渣を粒径に応じて分離して回収する残渣回収部とを備えることを特徴とする。 In order to solve the above problems, the waste gypsum board recycling system of the present invention further comprises a gypsum powder removing unit for removing gypsum powder having a particle diameter equal to or less than a predetermined particle size from gypsum-coated paper material that is separated by crushing waste gypsum board. And a release paper separation unit for removing release paper to which fine gypsum powder is attached, which is included in the residue in the gypsum powder removal unit, and a residue after the release paper is removed according to the particle size and recovered And a residue recovery unit.
また、本発明の廃石膏ボードのリサイクル方法は、廃石膏ボードを破砕して分離される石膏付き紙材から、さらに所定粒径以下の石膏粉を除去する石膏粉除去工程と、石膏粉除去工程における残留物に含まれ、微細な石膏粉が付着した剥離紙を除去する剥離紙分離工程と、剥離紙が除去された後の残渣を粒径に応じて分離して回収する残渣回収工程とを含むことを特徴とする。 In the waste gypsum board recycling method of the present invention, a gypsum powder removing step of removing gypsum powder having a predetermined particle diameter or less from a gypsum-coated paper material separated by crushing the waste gypsum board, and a gypsum powder removing step A release paper separation step of removing the release paper to which fine gypsum powder is attached, and a residue recovery step of separating and recovering the residue after the release paper is removed according to the particle size, It is characterized by including.
上記発明では、残渣回収部によって回収された残渣と、粉砕された樹脂製廃材とを混練して加熱することによりペレットを生成することが好ましい。なお、上記発明において、剥離紙分離部は、振とう動作又は叩き動作によって残留物を粉砕しつつ、篩い掛けにより剥離紙を除去することが好ましい。 In the above invention, it is preferable to produce pellets by kneading and heating the residue recovered by the residue recovery unit and the crushed resin-made waste material. In the above invention, it is preferable that the release paper separation unit remove the release paper by sieving while grinding the residue by shaking operation or tapping operation.
また、上記発明において、樹脂製廃材は、ポリプロピレン又はポリエチレンを含むことが好ましく、残留物は灰分が４５％以下であり、剥離紙分離部により除去される剥離紙は灰分が２１％以下であることが好ましい。
なお、上述した本発明にかかるリサイクルシステム或いはリサイクル方法を実施することにより、本発明のペレットの製造方法が実施され、これらの方法を実施することによってペレットの原材料及びペレットが製造される。
In the above invention, the resin waste preferably contains polypropylene or polyethylene, and the residue has an ash content of 45% or less, and the release paper removed by the release paper separation portion has an ash content of 21% or less Is preferred.
The method for producing pellets of the present invention is carried out by carrying out the recycling system or the recycling method according to the present invention described above, and the raw materials and pellets of pellets are produced by carrying out these methods.
以上説明したように本発明によれば、建設廃材等の一部として排出される廃石膏ボードを破砕して得られる石膏付き紙材を再生利用可能とする際、適度な配合の石膏粉、剥離紙及びその繊維等を効率よく回収し、これらを用いて生成された樹脂素材に適正な強度や特性を与えることができる。 As described above, according to the present invention, when making the gypsum-covered paper material obtained by crushing waste gypsum board discharged as part of construction waste material etc. recyclable, gypsum powder of appropriate composition, peeling Paper and its fibers and the like can be efficiently recovered, and appropriate strength and characteristics can be imparted to resin materials produced using these.
本発明の実施形態について、図面を参照しつつ説明する。なお、以下の説明において、各図面を通じて同一若しくは同等の部位や構成要素には、同一若しくは同等の符号を付している。また、以下に示す実施の形態は、この発明の技術的思想を具体化するための装置などを例示するものであって、この発明の技術的思想は、各構成部品の材質、形状、構造、配置などを下記のものに特定するものでない。この発明の技術的思想は、特許請求の範囲において、種々の変更を加えることができる。 Embodiments of the present invention will be described with reference to the drawings. In the following description, the same or equivalent parts or components are denoted by the same or similar reference numerals throughout the drawings. Further, the embodiment shown below is an example of an apparatus for embodying the technical idea of the present invention, and the technical idea of the present invention includes the material, shape, structure, and the like of each component. The arrangement etc. are not specified to the following. Various changes can be added to the technical idea of the present invention within the scope of the claims.
（廃石膏ボードのリサイクルシステム及びリサイクル方法の概要）
図１は、本実施形態に係る廃石膏ボードのリサイクルシステム及びリサイクル方法の概略を示す説明図である。同図に示すように、本実施形態に係るリサイクルシステム及びリサイクル方法は、廃石膏ボードを破砕して得られる石膏付き紙材を、さらに剥離紙と石膏とに分離し、分離されたを再生紙として利用可能とするものであり、リサイクルシステムは、一次分別装置１０１と二次分別装置としての分別リサイクル装置１０２とから構成される。なお、本実施形態にかかるリサイクルシステムによるリサイクル方法を実施することにより、本発明のペレットの製造方法が実施され、これらの方法を実施することによってペレットの原材料及びペレットが製造される。
(Outline of waste gypsum board recycling system and recycling method)
FIG. 1 is an explanatory view showing an outline of a waste gypsum board recycling system and a recycling method according to the present embodiment. As shown in the figure, in the recycling system and the recycling method according to the present embodiment, the gypsum-covered paper material obtained by crushing waste gypsum board is further separated into release paper and gypsum, and the separated paper is recycled The recycling system includes a primary sorting device 101 and a sorting recycling device 102 as a secondary sorting device. In addition, the manufacturing method of the pellet of this invention is implemented by implementing the recycling method by the recycling system concerning this embodiment, and the raw material and pellet of a pellet are manufactured by implementing these methods.
一次分別装置１０１は、廃石膏ボードを破砕して分離される石膏付き紙材から、さらに所定粒径以下の石膏粉を除去する石膏粉除去部であり、図１に示すように、本実施形態において一次分別装置では、石膏ボードＭ１を一次破砕により裁断し（Ｓ１０１）、それをさらに二次破砕により破壊して所定大の大きさにした後（Ｓ１０２）、灰分４５％以下の剥離紙と、石膏粉とに分離する（Ｓ１０３）。この段階において分離された石膏粉は所定粒径（ここでは、０．５ｍｍ又は３．０ｍｍ）以下に微粒化され（Ｓ１０４）、石膏粉Ｍ２として利用することができる。この石膏粉Ｍ２は、例えば、建設資材や肥料関係、土壌改良、汚泥固化、その他の再資源化に利用することができる。 The primary sorting device 101 is a gypsum powder removing unit that further removes gypsum powder having a predetermined particle size or less from the gypsum-added paper material that is separated by crushing waste gypsum board, and as shown in FIG. In the primary sorting device, the gypsum board M1 is cut by primary crushing (S101), and after it is broken by secondary crushing to make it into a predetermined size (S102), release paper with an ash content of 45% or less, It separates into gypsum powder (S103). The gypsum powder separated in this stage is atomized to a predetermined particle size (here, 0.5 mm or 3.0 mm) or less (S104) and can be used as gypsum powder M2. This gypsum powder M2 can be used, for example, for construction materials and fertilizers, soil improvement, sludge solidification, and other recycling.
ステップＳ１０３の分離作業において得られた灰分４５％以下の剥離紙には、未だ多少の石膏が付着しており、これを本実施形態に係る二次分別装置である分別リサイクル装置１０２によりさらに分別処理を行う。この二次分別装置では、先ず始めに、剥離紙分離部９によって、灰分２１％以下の剥離紙Ｍ３と、石膏粉の付着が多い灰分２１％〜４５％の剥離紙Ｍ４とに分別される。この剥離紙分離部９では、振とう動作又は叩き動作によって残留物を粉砕しつつ、篩い掛けにより、ステップＳ１０３における残留物から、微細な石膏粉が付着した剥離紙を除去する。具体的には、一次分別装置１０１における残留物が、剥離紙分離部９に投入され、振とう動作又は叩き動作に加え、さらに多孔部材に対して擦りつけつつ叩きつける動作によって、撹拌されつつこの多孔部材上を搬送されることにより、灰分２１％以下の剥離紙Ｍ３と、石膏粉の付着が多い灰分２１％〜４５％の剥離紙Ｍ４とに分離される。 Some of the gypsum still adheres to the release paper with an ash content of 45% or less obtained in the separation operation in step S103, and this is further separated by the separation and recycling apparatus 102, which is the secondary separation apparatus according to the present embodiment. I do. In this secondary sorting apparatus, first, the release paper separation section 9 separates the release paper M3 having an ash content of 21% or less and the release paper M4 having an ash content of 21% to 45% with a high adhesion of gypsum powder. In the release paper separation unit 9, while crushing the residue by shaking operation or tapping operation, the release paper to which fine gypsum powder adheres is removed from the residue in step S103 by sieving. Specifically, the residue in the primary sorting device 101 is introduced into the release paper separation unit 9 and added to the shaking operation or tapping operation, and further, while being agitated by the operation of rubbing and striking the porous member, the pores By being conveyed on the member, it is separated into a release paper M3 having an ash content of 21% or less and a release paper M4 having an ash content of 21% to 45%, which has a high adhesion of gypsum powder.
次いで、灰分２１％以下の剥離紙Ｍ３については、ベール紙その他の原材料（ベール紙等）Ｍ５とともに搬送コンベア７で撹拌・混練されつつ圧縮梱包機５に搬送される。また、石膏粉の付着が多い灰分２１〜４５％の剥離紙Ｍ４については、残渣回収部であるトロンメル２によって、さらに灰分２１％以下の紙材である剥離紙Ｍ７と、所定粒径以下の石膏粉Ｍ６３と、さらに繊維や石膏粉が混ざった残渣Ｍ６１とに分離がなされる。ここで分離された２１％以下の剥離紙Ｍ７は、上述した灰分２１％以下の剥離紙Ｍ３やベール紙等Ｍ５とともに、圧縮梱包機５によって圧縮梱包され、再生紙の製紙原料Ｍ９として利用可能となる。 Next, the release paper M3 having an ash content of 21% or less is conveyed to the compression packing machine 5 while being stirred and kneaded by the conveyance conveyer 7 together with the bale paper and other raw materials (bale paper etc.) M5. With regard to release paper M4 with an ash content of 21 to 45% with a large amount of adhesion of gypsum powder, the trommel 2, which is a residue recovery unit, further releases release paper M7 which is a paper material having an ash content of 21% or less The powder M63 is separated into a residue M61 in which fiber and gypsum powder are further mixed. The 21% or less release paper M7 separated here is compressed and packed with the above-described release paper M3 having an ash content of 21% or less M5 such as a bale paper or the like by the compression packing machine 5, and can be used as the paper material M9 for recycled paper. Become.
詳述すると、剥離紙分離部９で分離された灰分２１％以下の剥離紙Ｍ７は、投入コンベア３を通じて圧縮梱包機５に投入され、搬送コンベア７を通じて搬送されてきた灰分２１％以下の剥離紙Ｍ３やベール紙等Ｍ５とともに、圧縮梱包機５によって圧縮梱包され製紙原料Ｍ９となる。他方、剥離紙分離部９で分離された残渣Ｍ６１はペレットの原材料となり、ペットボトルの廃キャップ等を粉砕してなる樹脂製廃材Ｍ６２とともに、摩擦混練機８で摩擦熱によって加熱混練され、プレペレットＭ８として成型され、プレペレット或いはペレットが製造される。このペットボトルの廃キャップ等が粉砕された樹脂製廃材Ｍ６２には、その成分としてポリプロピレン又はポリエチレンが含まれる。また、石膏粉Ｍ６３は、上述した石膏粉Ｍ２と同様に再資源化に供される。 More specifically, the release paper M7 having an ash content of 21% or less separated by the release paper separating unit 9 is introduced into the compression packing machine 5 through the input conveyor 3 and the release paper having an ash content of 21% or less conveyed through the transport conveyor 7 It is compressed and packed by the compression and packing machine 5 together with M3 and bail paper M5 to become a paper stock M9. On the other hand, the residue M61 separated in the release paper separation unit 9 becomes a raw material for pellets, and is heat-kneaded by friction heat in the friction kneader 8 together with the resin waste material M62 formed by crushing waste caps etc. It is molded as M8 to produce pre-pellets or pellets. The resin-made waste material M62 obtained by crushing the waste cap and the like of the plastic bottle contains polypropylene or polyethylene as a component thereof. Moreover, the gypsum powder M63 is provided for recycling similarly to the above-described gypsum powder M2.
（廃石膏ボードのリサイクルシステムの構成）
次いで、かかるシステムで用いられる二次分別装置としての分別リサイクル装置１０２について説明する。図２は、本実施形態に係る廃石膏ボード分別リサイクル装置の概略を示す構成図である。
(Composition of waste gypsum board recycling system)
Next, the sorting and recycling apparatus 102 as a secondary sorting apparatus used in such a system will be described. FIG. 2: is a block diagram which shows the outline of the waste gypsum board separate recycling apparatus which concerns on this embodiment.
この分別リサイクル装置１０２は、一次分別装置１０１で分離された石膏付き紙材から、さらに紙材と石膏粉とを分離する装置であり、具体的には、石膏付き紙材を投入する投入ホッパ１と、剥離紙分離部９と、残渣回収部であるトロンメルと、各装置間の搬送経路を構成する紙用コンベア２１，９１と、投入コンベア３と、圧縮梱包機５と、再生紙搬出部６と、搬送コンベア７と、摩擦混練機８と石膏粉搬出装置４を備えている。 The sorting and recycling apparatus 102 is an apparatus for further separating the paper material and the gypsum powder from the gypsum-coated paper material separated by the primary sorting apparatus 101, and more specifically, an input hopper 1 for charging the gypsum-added paper material. , Release paper separation unit 9, trommel which is a residue collection unit, paper conveyors 21 and 91 which constitute a conveyance path between the respective devices, input conveyor 3, compression packing machine 5, recycled paper discharge unit 6 , A conveyer 7, a friction kneader 8 and a gypsum powder unloading device 4.
投入ホッパ１は、投入された石膏付き紙材を貯めておく上部開口容器であり、下方が剥離紙分離部９に接続されている。剥離紙分離部９は、灰分２１％以下の剥離紙Ｍ３と、石膏粉の付着が多い灰分２１％〜４５％の剥離紙Ｍ４とに分別する装置である。具体的にこの剥離紙分離部９は、一次分別装置１０１における残留物が投入され、振とう動作又は叩き動作に加え、さらに多孔部材に対して擦りつけつつ叩きつける動作によって、撹拌されつつこの多孔部材上を搬送されることにより、灰分２１％以下の剥離紙Ｍ３と、石膏粉の付着が多い灰分２１％〜４５％の剥離紙Ｍ４とに分離する。 The input hopper 1 is an upper opening container for storing the input gypsum-added paper material, and the lower portion is connected to the release paper separating unit 9. The release paper separation unit 9 is a device that separates the release paper M3 having an ash content of 21% or less and the release paper M4 having an ash content of 21% to 45% with a large amount of adhesion of gypsum powder. Specifically, in this release paper separation unit 9, the residue in the primary sorting device 101 is introduced, and in addition to the shaking operation or tapping operation, the porous member is further stirred by a rubbing operation while being beaten while being stirred. By being conveyed on the upper side, it is separated into a release paper M3 having an ash content of 21% or less and a release paper M4 having an ash content of 21% to 45% with a high adhesion of gypsum powder.
トロンメル２は、剥離紙が除去された後の残渣を粒径に応じて分離して回収する装置であり、石膏粉の付着が多い灰分２１〜４５％の剥離紙Ｍ４が投入され、異なる粒径の篩い分け機構を用い、撹拌しつつ回転させることによる遠心分離によって、灰分２１％以下の紙材である剥離紙Ｍ７と、所定粒径以下の石膏粉Ｍ６３とを回収し、その後に残った比重の軽い繊維と石膏粉とが混ざった残渣Ｍ６１を分離回収する。ここで分離された２１％以下の剥離紙Ｍ７は、上述した灰分２１％以下の剥離紙Ｍ３やベール紙等Ｍ５とともに、圧縮梱包機５によって圧縮梱包され、再生紙の製紙原料Ｍ９として利用可能となる。 Trommel 2 is an apparatus that separates and recovers the residue after the release paper is removed according to the particle size, and release paper M4 with an ash content of 21 to 45% with a large amount of adhesion of gypsum powder is charged, and different particle sizes The release paper M7 which is a paper material having an ash content of 21% or less and the gypsum powder M63 having a predetermined particle size or less are recovered by centrifugal separation by stirring and rotating using a sieving mechanism of The residue M61, which is a mixture of light fiber and gypsum powder, is separated and collected. The 21% or less release paper M7 separated here is compressed and packed with the above-described release paper M3 having an ash content of 21% or less M5 such as a bale paper or the like by the compression packing machine 5, and can be used as the paper material M9 for recycled paper. Become.
投入コンベア３は、トロンメル２で回収された紙材（剥離紙）を圧縮梱包機５に投入供給するためのベルトコンベアである。他方、搬送コンベア７は、一次分離等で分離された紙材のうち石膏粉の付着が少ない灰分２１％以下の剥離紙Ｍ３と、圧縮梱包後に梱包が解けてしまったベール紙、その他の紙類とを圧縮梱包機５に投入するためのベルトコンベアである。 The feeding conveyor 3 is a belt conveyor for feeding and supplying the paper material (release paper) collected by the trommel 2 to the compression packing machine 5. On the other hand, the transport conveyor 7 is a release paper M3 having an ash content of 21% or less with little adhesion of gypsum powder among paper materials separated by primary separation etc., bale paper that has been unwrapped after compression packing, and other papers And a belt conveyor for charging the compression packing machine 5.
石膏粉搬出装置４は、トロンメル２で分別された石膏粉Ｍ６３を紙用コンベア２１に送ることなく、搬出するための装置である。圧縮梱包機５は、所定量の剥離紙を圧縮して立方体状に成型する装置であり、ここで圧縮された剥離紙は、再生紙搬出部６から搬出される。また、摩擦混練機８は、剥離紙分離部９からトロンメル２を経て回収された残渣Ｍ６１と、粉砕された樹脂製廃材Ｍ６２とを混練して加熱することによりペレットを生成するペレット生成部であり、ここでは、トロンメル２によって分別された残渣Ｍ６１に樹脂製廃材Ｍ６２を摩擦混練してプレペレットＭ８を生成する。 The gypsum powder unloading device 4 is a device for unloading the gypsum powder M63 separated by the trommel 2 without sending it to the paper conveyor 21. The compression packing machine 5 is a device for compressing a predetermined amount of release paper and forming it into a cubic shape, and the release paper compressed here is carried out from the recycled paper delivery unit 6. The friction kneader 8 is a pellet generating unit that generates pellets by kneading and heating the residue M61 recovered from the release paper separation unit 9 via the trommel 2 and the crushed resin-made waste material M62. Here, the resin-made waste material M62 is friction-kneaded to the residue M61 separated by the trommel 2 to form a pre-pellet M8.
（作用・効果）
以上説明した本実施形態によれば、建設廃材等の一部として排出される廃石膏ボードを破砕して得られる石膏付き紙材を再生利用可能とする際、適度な配合の石膏粉、剥離紙及びその繊維等を効率よく回収し、これらを用いて生成された樹脂素材に適正な強度や特性を与えることができる。
(Action / effect)
According to the present embodiment described above, when making the gypsum-coated paper material obtained by crushing waste gypsum board discharged as a part of construction waste material etc. recyclable, gypsum powder of appropriate composition, release paper And the fiber etc. can be collect | recovered efficiently and appropriate intensity | strength and characteristics can be given to the resin raw material produced | generated using these.
Ｍ１…石膏ボード
Ｍ２…石膏粉
Ｍ３…石膏粉が少ない剥離紙
Ｍ４…石膏粉が多い剥離紙
Ｍ５…ベール紙等
Ｍ６１…残渣
Ｍ６２…樹脂製廃材
Ｍ６３…石膏粉
Ｍ７…分別後の剥離紙
Ｍ８…プレペレット
Ｍ９…製紙原料
１…投入ホッパ
２…トロンメル（残渣回収部）
３…投入コンベア
４…石膏粉搬出装置
５…圧縮梱包機
６…再生紙搬出部
７…搬送コンベア
８…摩擦混練機
９…剥離紙分離部
２１，９１…紙用スクリューコンベア
２２…搬出装置
１０１…一次分別装置
１０２…分別リサイクル装置
２００…ケーシング部
２０１…分離部
２０２…撹拌搬送部
M1 ... gypsum board M2 ... gypsum powder M3 ... release paper with little gypsum powder M4 ... release paper with a lot of gypsum powder M5 ... bale paper etc. M61 ... residue M62 ... resin waste material M63 ... gypsum powder M7 ... release paper after sorting M8 ... Pre-pellet M9 ... Paper stock 1 ... Input hopper 2 ... Trommel (residue recovery unit)
DESCRIPTION OF SYMBOLS 3 ... input conveyor 4 ... gypsum powder export device 5 ... compression packing machine 6 ... recycled paper output part 7 ... conveyance conveyor 8 ... friction kneader 9 ... release paper separation part 21, 91 ... paper screw conveyor 22 ... export device 101 ... Primary sorting device 102 ... Sorting recycling device 200 ... Casing part 201 ... Separation part 202 ... Stirring conveyance part
Claims (16)
前記石膏粉除去部における残留物に含まれ、微細な石膏粉が付着した剥離紙を除去する剥離紙分離部と、
前記剥離紙が除去された後の残渣を粒径に応じて分離して回収する残渣回収部と
を備えることを特徴とする廃石膏ボードのリサイクルシステム。 A gypsum powder removing unit for removing gypsum powder having a predetermined particle size or less from the gypsum-coated paper material to be separated by crushing waste gypsum board;
A release paper separation unit for removing release paper which is contained in the residue in the gypsum powder removing unit and to which fine gypsum powder adheres;
And a residue recovery unit for separating and recovering the residue after the release paper is removed according to the particle size, and a waste gypsum board recycling system.
前記石膏粉除去工程における残留物に含まれ、微細な石膏粉が付着した剥離紙を除去する剥離紙分離工程と、
前記剥離紙が除去された後の残渣を粒径に応じて分離して回収する残渣回収工程と
を含むことを特徴とする廃石膏ボードのリサイクル方法。 A gypsum powder removing step of removing gypsum powder having a predetermined particle size or less from the gypsum-covered paper material to be separated by crushing waste gypsum board;
A release paper separation step of removing release paper to which fine gypsum powder is attached and which is included in the residue in the gypsum powder removal step;
And D. a residue recovery step of separating and recovering the residue after the release paper has been removed according to the particle size, and a waste gypsum board recycling method.
前記石膏粉除去工程における残留物に含まれ、微細な石膏粉が付着した剥離紙を除去する剥離紙分離工程と、
前記剥離紙が除去された後の残渣を粒径に応じて分離して回収する残渣回収工程と
前記残渣回収工程によって回収された残渣と、粉砕された樹脂製廃材とを混練して加熱することによりペレットを生成するペレット生成工程と
を含むことを特徴とするペレットの製造方法。 A gypsum powder removing step of removing gypsum powder having a predetermined particle size or less from the gypsum-covered paper material to be separated by crushing waste gypsum board;
A release paper separation step of removing release paper to which fine gypsum powder is attached and which is included in the residue in the gypsum powder removal step;
A residue recovery step of separating and recovering the residue after the release paper is removed according to the particle size, kneading the residue recovered in the residue recovery step, and the crushed resin waste material and heating And producing a pellet by the step of
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