JPH0829969B2 - Method for manufacturing fireproof building materials - Google Patents
Method for manufacturing fireproof building materialsInfo
- Publication number
- JPH0829969B2 JPH0829969B2 JP21321893A JP21321893A JPH0829969B2 JP H0829969 B2 JPH0829969 B2 JP H0829969B2 JP 21321893 A JP21321893 A JP 21321893A JP 21321893 A JP21321893 A JP 21321893A JP H0829969 B2 JPH0829969 B2 JP H0829969B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- gypsum board
- surfactant
- waste material
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
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
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Finishing Walls (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐火性建築材料の製造
方法に関するものであり、より詳しくは、通常の石膏ボ
ード廃材、繊維強化石膏ボード廃材等の普通石膏ボード
廃材、更には化粧石膏ボード廃材、シージング石膏ボー
ド廃材等の加工石膏ボード廃材等を耐火性の建築材料等
に再生する耐火性建築材料の製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a refractory building material, more specifically, ordinary gypsum board waste materials such as ordinary gypsum board waste materials, fiber reinforced gypsum board waste materials, and decorative gypsum board. TECHNICAL FIELD The present invention relates to a method for manufacturing a fire-resistant building material, such as processing waste gypsum board, scraping gypsum board waste material, etc., into a fire-resistant building material.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】昭和５
０年代、排煙脱硫石膏が多量に発生する状況にあった
為、それを有効利用するよう国の指導があり、石膏ボー
ドへの利用、セメントへの利用が行われると同時に、水
砕スラグ−石膏−石灰質の三成分系耐火性建築材料の開
発がなされた。これらは市販されるに至ったが、昭和６
０年代に入ると排煙脱硫石膏の発生が激減した。このた
め、石膏ボードメーカー、セメントメーカー、水砕スラ
グメーカーは天然石膏を諸外国より輸入しているのが現
状となった。[Prior Art and Problems to be Solved by the Invention] Showa 5
In the 0's, a large amount of flue gas desulfurization gypsum was generated, so the government has instructed to effectively use it, and at the same time it is used for gypsum board and cement, at the same time as granulated slag- A gypsum-calcic ternary refractory building material was developed. These have come to the market, but Showa 6
In the 0's, the generation of flue gas desulfurization plaster decreased dramatically. For this reason, gypsum board makers, cement makers, and granulated slag makers are now importing natural gypsum from other countries.
【０００３】しかしながら、現在まで既に生産された石
膏ボードは廃材化しており、最近の環境問題で廃材等の
再利用が叫ばれているにも拘わらず、石膏ボードの廃材
の利用が成されていない。またこれらのボードの再利用
についても十分な技術開発が成されていない。従って、
本発明の目的は、石膏ボード廃材の再利用を図ると共
に、性能的に優れた耐火性建築材料を安く大量に製造す
ることのできる耐火性建築材料の製造方法を提供するこ
とにある。However, the gypsum board that has already been produced up to now has been made into a waste material, and the waste material of the gypsum board has not been used despite the demand for reuse of the waste material and the like due to recent environmental problems. . In addition, sufficient technology development has not been done on the reuse of these boards. Therefore,
An object of the present invention is to provide a method for manufacturing a fire-resistant building material, which can reuse a waste plasterboard material and can inexpensively mass-produce a fire-resistant building material having excellent performance.
【０００４】[0004]
【課題を解決するための手段】本発明者等は、最近の環
境問題で廃材の再利用が叫ばれているのに着目し、その
一環として多量に発生する石膏ボード廃材を利用して、
水砕スラグ−施工−石灰質系耐火性建築材料の主成分で
ある石膏の代替として石膏ボード廃材を界面活性剤等で
処理することにより、石膏ボード廃材が十分な耐火性材
料に利用できることを知見した。本発明は、上記知見に
基づいて目的を達成したものであり、石膏ボード廃材を
乾式粉砕、又は／及び石膏ボード廃材に適量の水分、及
び離解を促進する界面活性剤を加えて湿式粉砕し、上記
粉砕物である石膏質原料３重量部〜７０重量部に、水砕
スラグ３０重量部〜７０重量部、石灰質等からなるの水
硬性材料３０重量部〜７０重量部、及び繊維質材料２重
量部〜１５重量部を混合したるスラリーを以て湿式抄造
方法又は押出成形方法で耐火性建築材料を製造すること
を特徴とする耐火性建築材料の製造方法を提供するもの
である。[Means for Solving the Problems] The inventors of the present invention have paid attention to the fact that the reuse of waste materials has been sought after due to recent environmental problems, and as a part of this, a large amount of gypsum board waste materials are used,
Granulated slag-Construction-Calcium-based waste It was discovered that waste gypsum board can be used as a sufficient fire-resistant material by treating the waste gypsum board with a surfactant or the like as an alternative to gypsum, which is the main component of building materials. . The present invention has achieved the object based on the above findings, dry pulverization of gypsum board waste material, or / and wet pulverization by adding an appropriate amount of water to the gypsum board waste material, and a surfactant that promotes disaggregation, 3 parts by weight to 70 parts by weight of gypsum raw material, which is the crushed product, 30 parts by weight to 70 parts by weight of granulated slag, 30 parts by weight to 70 parts by weight of hydraulic material made of calcareous material, and 2 parts by weight of fibrous material. The present invention provides a method for producing a refractory building material, which comprises producing a refractory building material by a wet papermaking method or an extrusion molding method using a slurry obtained by mixing 15 parts by weight to 15 parts by weight.
【０００５】以下、本発明に係る耐火性建築材料の製造
方法について詳述する。本発明の耐火性建築材料の製造
方法に用いられる石膏ボード廃材としては、通常の石膏
ボード廃材、繊維強化石膏ボード廃材等の普通石膏ボー
ド廃材、更には化粧石膏ボード廃材、シージング石膏ボ
ード廃材等の加工石膏ボード廃材等を粉砕して用いるこ
とができる。また、石膏ボード廃材の粉砕方法では、多
量の水分を含んでいない場合は乾式状態での乾式粉砕を
行うことができ、また多量の水分を含む石膏ボード廃材
では、適宜の水分を加えて調整し湿式粉砕を行うことが
できる。The method of manufacturing the fire resistant building material according to the present invention will be described in detail below. As the gypsum board waste material used in the method for producing a fire-resistant building material of the present invention, ordinary gypsum board waste material, ordinary gypsum board waste material such as fiber reinforced gypsum board waste material, further decorative gypsum board waste material, caustic gypsum board waste material, etc. The processed gypsum board waste material and the like can be crushed and used. Further, in the crushing method of gypsum board waste material, dry crushing in a dry state can be performed when it does not contain a large amount of water, and in the case of gypsum board waste material containing a large amount of water, an appropriate amount of water is added to adjust. Wet grinding can be performed.
【０００６】乾式粉砕では、石膏ボード廃材をフレッド
ミル（エッヂランナ）又はハンマーミル等で粉砕した
後、微粉砕機（レーモンドローラミル等）で８０メッシ
ュ以下、特に１００メッシュ以下に微粉砕してこれを石
膏質原料とすることが望ましい。湿式粉砕では、石膏ボ
ード廃材をパルパー（パルプ離解機）に適量の水と共に
投入し、ボードの紙類及び石膏質を同時に粉砕、離解す
る。更にリファイナー（連続離解機）に導入して石膏ボ
ード廃材の紙類を細解繊して繊維質材料の一部として有
効利用する一方、粉砕された石膏質を後述の石膏質原料
とすることができる。In dry pulverization, waste gypsum board is pulverized by a fred mill (edge runner) or hammer mill, and then finely pulverized by a fine pulverizer (Raymond roller mill, etc.) to 80 mesh or less, particularly 100 mesh or less. It is desirable to use quality raw materials. In wet crushing, waste gypsum board material is put into a pulper (pulp disintegrator) together with an appropriate amount of water, and the paper and gypsum material of the board are simultaneously crushed and disintegrated. Furthermore, it can be introduced into a refiner (continuous disintegrator) to finely disintegrate waste paper of gypsum board and effectively utilize it as a part of fibrous material, while crushed gypsum can be used as a gypsum raw material described later. it can.
【０００７】上記粉砕に際しては離解促進剤として界面
活性剤を添加して行うことが重要であり、界面活性剤は
石膏ボード廃材の廃材量１０００重量部に対して０．０
０１重量部以上添加することが望ましい。界面活性剤と
しては、少なくともポリオキシアルキレン基を主成分と
する界面活性剤を上記廃材量１０００重量部に対して
０．００１重量部〜０．０１重量部添加することが望ま
しく、特にポリオキシアルキレン基を主成分とする界面
活性剤は、オキシ・エチレン、オキシ・プロピレン又は
これらのブロックポリマー系の界面活性剤であることが
望ましい。このような界面活性剤は、その石膏ボード廃
材の粉砕時に離解を促進し、十分に利用可能な石膏質原
料を提供する。It is important to add a surfactant as a disaggregation accelerator in the above pulverization, and the surfactant is 0.0 per 100 parts by weight of the waste material of the gypsum board.
It is desirable to add more than 01 parts by weight. As the surfactant, it is desirable to add at least 0.001 part by weight to 0.01 part by weight of a surfactant containing a polyoxyalkylene group as a main component to 1000 parts by weight of the waste material, and particularly polyoxyalkylene. The group-based surfactant is preferably oxy-ethylene, oxy-propylene, or a block polymer-based surfactant of these. Such a surfactant promotes disaggregation during pulverization of the gypsum board waste material and provides a sufficiently usable gypsum raw material.
【０００８】また、石膏ボード廃材が化粧石膏ボード廃
材、シージング石膏ボード廃材等の加工石膏ボード廃材
等である場合、上記界面活性剤にはポリオキシアルキレ
ン基を主成分とする界面活性剤の他に、少なくともアル
キルスルホン酸塩、アルキルアリール酸塩、又はアルキ
ルスルホコハク酸エステル塩を廃材量１０００重量部に
対し０．００１重量部〜０．０１重量部添加することが
望ましく、特にアルキルスルホコハク酸エステル塩であ
るジオクチルスルホコハク酸ナトリウム等が望ましい。
上記加工石膏ボードは、表紙等の離解性・叩解性が極め
て悪く又、加工表紙類の特殊なものは、その後の製造に
おける硬化不良の原因、又製品の耐火性を低下させる原
因になるが、上記界面活性剤を含有させることにより、
十分に利用可能な石膏質原料を得ることができる。When the gypsum board waste material is a processed gypsum board waste material such as a decorative gypsum board waste material or a sheathing gypsum board waste material, etc., the above-mentioned surfactant includes, in addition to the surfactant having a polyoxyalkylene group as a main component. It is desirable to add at least 0.001 part by weight to 0.01 part by weight of an alkyl sulfonate, an alkyl aryl salt, or an alkyl sulfosuccinate salt to 1000 parts by weight of the amount of waste material. Some dioctyl sodium sulfosuccinate and the like are desirable.
The processed gypsum board has extremely poor disintegration property / beatability such as a cover sheet, and a special processed cover sheet causes a curing failure in subsequent manufacturing, or causes a decrease in fire resistance of the product. By containing the above surfactant,
It is possible to obtain a sufficiently usable gypsum raw material.
【０００９】上記石膏質原料３重量部〜７０重量部に水
砕スラグ３０重量部〜７０重量部、消石灰、生石灰、セ
メント等の石灰質からなる水硬性材料３０重量部〜７０
重量部、及び補強材料としてパルプ、ガラス繊維、有機
合成繊維、石綿等の繊維質材料２重量部〜１５重量部の
割合で混合し、混合スラリーを調製する。次に混合スラ
リーを湿式抄造方法（丸網式、長網式）又は押出成形方
法で生板にする。得られた生板を２５〜４８時間、屋内
にて２０〜３０℃で養生（前養生）したる後、湿度９５
％以上、温度６０〜７０℃の養生室にて１５〜２４時間
蒸気養生する。蒸気養生終了後、５時間以上経過後、蒸
気養生室より搬入し、熱風乾燥炉にて余剰水を除去した
る後、裁断機にて規定寸法に裁断し、耐火性建築材料と
する。3 to 70 parts by weight of the above-mentioned gypsum raw material, 30 to 70 parts by weight of granulated slag, and 30 to 70 parts by weight of a hydraulic material composed of calcareous material such as slaked lime, quick lime and cement.
A mixing slurry is prepared by mixing 2 parts by weight to 15 parts by weight of a fibrous material such as pulp, glass fiber, organic synthetic fiber, and asbestos as a reinforcing material. Next, the mixed slurry is made into a green plate by a wet papermaking method (circle net type, fourdrinier type) or an extrusion molding method. After curing the obtained green plate indoors at 20 to 30 ° C. for 25 to 48 hours (pre-curing), the humidity is 95.
% Or more, steam curing is performed in a curing chamber at a temperature of 60 to 70 ° C. for 15 to 24 hours. After 5 hours or more have passed after the steam curing, it is carried in from the steam curing chamber, excess water is removed by a hot air drying furnace, and then cut into a specified size by a cutting machine to obtain a fire resistant building material.
【００１０】前養生及び蒸気養生を行うことにより、生
板では、CaSO4 ・2H2O （石膏ボード廃材）＋ Ca(CO)
2（石灰質）＋CaO ・ SiO2・ CaO ・Al2O3 （水砕スラ
グ）＋YH2O（水）＝ 3CaO ・ Al2O3 ・3CaSO4 ・32H2O（エ
トリンガイト）＋CaO ・ SiO2 ・nH2O（硅酸石灰ゲル）＋
CaO ・ Al2O3 ・ mH2O（アルミン酸石灰ゲル）の反応が起
き、三成分の混合硬化体が生成される。[0010] By performing the pre-cured and steam curing, the Namaita, CaSO 4 · 2H 2 O (gypsum board wastes) + Ca (CO)
2 (calcium) ＋ CaO ・ SiO 2・ CaO ・ Al 2 O 3 (granulated slag) ＋ YH 2 O (water) ＝ 3CaO ・ Al 2 O 3・ 3CaSO 4・ 32H 2 O (Ettringite) + CaO ・ SiO 2・ nH 2 O (lime silicate gel) +
The reaction of CaO · Al 2 O 3 · mH 2 O (lime aluminate gel) occurs, and a three-component mixed cured product is produced.
【００１１】[0011]
【実施例】以下、本発明に係る耐火性建築材料の製造方
法を実施例に基づいて更に詳しく説明する。但し、本発
明は以下の実施例に限られるものではない。 （実施例１）本実施例は図１のフローチャートに示す如
く、湿式抄造方法を用いて耐火性建築材料を製造した。
実施例１においては、含石綿配合例と非含石綿配合例に
分けて、表１に示す原料の配合剤で図１のフローチャー
トに従って製造した。EXAMPLES Hereinafter, the method for producing a refractory building material according to the present invention will be described in more detail based on examples. However, the present invention is not limited to the following examples. (Example 1) In this example, as shown in the flow chart of Fig. 1, a fireproof building material was manufactured by using a wet papermaking method.
Example 1 was divided into an asbestos-containing composition example and a non-asbestos-containing composition example, and the raw materials shown in Table 1 were used for production according to the flowchart of FIG.
【００１２】[0012]
【表１】 [Table 1]
【００１３】具体的には、 Ａ．原料（ロ）普通石膏ボード廃材（又は加工石膏ボー
ド廃材）と（ヌ）界面活性剤（廃材量１０００重量部に
対してオキシ・エチレン−オキシ・プロピレンブロック
ポリマーを０．００５重量部、更に加工石膏ボード廃材
を含むときはジオクチルスルホコハク酸ナトリウムを
０．００５重量部）と適量の水を（１）パルパー（パル
プ離解機）に投入し粉砕・解繊する。但し、水分のほと
んどない石膏ボード廃材は（４）ハンマーミルにて粉砕
し（５）レーモンドローラーミルにて微粉砕し（７）の
混合機に導入する。Specifically, A. Raw materials (b) Ordinary gypsum board waste material (or processed gypsum board waste material) and (nu) Surfactant (0.005 parts by weight of oxy-ethylene-oxy-propylene block polymer per 1000 parts by weight of waste material, further processed gypsum) When the board waste material is included, 0.005 parts by weight of dioctyl sodium sulfosuccinate) and an appropriate amount of water are added to (1) pulper (pulp disintegrator) to crush and defibrate. However, the gypsum board waste material having almost no water is pulverized by (4) hammer mill, (5) finely pulverized by Raymond roller mill, and introduced into the mixer of (7).
【００１４】Ｂ．前記Ａを（３）リファイナー（連続離
解機）にて更に細解繊する。但し、加工石膏ボード廃材
は（１）を経て（２）ヤンソンスクリーン（篩式濾過
機）にて化粧層、強化紙類を篩別け分離し、（３）リフ
ァイナーに導入処理し（７）混合機に導入する。 Ｃ．前記Ｂを（７）混合機に導入する。 Ｄ．原料（ホ）（ヘ）（ト）（リ）は、（６）解繊槽に
て解繊し（７）混合機に導入する。 Ｅ．原料（イ）（ハ）（チ）（ニ）を（７）混合機に導
入する。 Ｆ．（７）混合機に導入した全原料を充分混合し、混合
スラリーを作成する。 Ｇ．（７）の混合スラリーを（８）湿式抄造機（丸網
式、長網式）に導入し、規定寸法厚さの生板を成型す
る。 Ｈ．前記Ｇの生板を（９）パレットに積載する。B. The above A is further finely disintegrated by the (3) refiner (continuous disintegrator). However, the processed gypsum board waste material goes through (1), (2) separates the decorative layer and the reinforced paper with a Yangson screen (sieving filter), (3) introduces them into the refiner, and (7) mixes them. To introduce. C. The B is introduced into the mixer (7). D. The raw materials (e), (f), (t) and (li) are defibrated in (6) defibration tank and introduced into (7) mixer. E. FIG. The raw materials (a), (c), (h), (d) are introduced into the mixer (7). F. (7) All the raw materials introduced into the mixer are thoroughly mixed to prepare a mixed slurry. G. The mixed slurry of (7) is introduced into the wet papermaking machine (8) of round net type and fourdrinier type to form a green plate having a specified thickness. H. The green plate of G is loaded on the (9) pallet.
【００１５】Ｉ．前記Ｈのパレット積載生板は、屋内に
て２４〜４８時間養生する。 Ｊ．前記Ｉ前養生終了のパレット積載生板は、（１０）
上記養生室に搬入し、湿度９５％以上、温度６０〜７０
℃にて１５〜２４時間蒸気養生する。 Ｋ．前記Ｊの硬化成板を（１１）熱風乾燥炉で温度１６
０〜１９０℃にて３５〜６０分間乾燥する。 Ｌ．前記Ｋの乾燥成板を（１２）裁断機にて定尺に裁断
する。（裁断時に発生する屑及び破損板は（１５）粉砕
機にて粉砕し、リサイクル粉として原料の一重量部とす
る。） Ｍ．前記Ｌの裁断成板は、（１３）の品質・検査工程を
経て耐火性建築材料として出荷する。 上記工程で得られた耐火性建築材料の物性を表２に示
す。I. The pallet-laden green plate of H is cured indoors for 24 to 48 hours. J. The I-pre-cured pallet-loaded green plate is (10)
Carry in the above curing room, humidity 95% or more, temperature 60-70
Steam cure at ℃ for 15-24 hours. K. The cured plate of J was heated to (11) in a hot air drying oven at a temperature of 16
Dry at 0-190 ° C for 35-60 minutes. L. (12) The dried plate of K is cut into a fixed size with a cutting machine. (Scraps and broken plates generated during cutting are crushed by (15) crusher and made into 1 part by weight of raw material as recycled powder.) The L cut sheet is shipped as a refractory building material through the quality / inspection step (13). Table 2 shows the physical properties of the refractory building material obtained in the above process.
【００１６】[0016]
【表２】 [Table 2]
【００１７】（実施例２）本実施例は図２のフローチャ
ートに示す如く、押出成型方法を用いて耐火性建築材料
を製造した。実施例２においては、表３に示す原料の配
合剤で図２のフローチャートに従って製造した。Example 2 In this example, as shown in the flow chart of FIG. 2, a refractory building material was manufactured using an extrusion molding method. In Example 2, the ingredients of the raw materials shown in Table 3 were used for production according to the flowchart of FIG.
【００１８】[0018]
【表３】 [Table 3]
【００１９】具体的には、 Ａ．原料（ロ）普通石膏ボード廃材と（又は加工石膏ボ
ード廃材）と（ヌ）界面活性剤（廃材量１０００重量部
に対してオキシ・エチレン−オキシ・プロピレンブロッ
クポリマーを０．００５重量部、更に加工石膏ボード廃
材を含むときはジオクチルスルホコハク酸ナトリウムを
０．００５重量部）と適量の水を（１）パルパー（パル
プ離解機）に投入し粉砕・解繊する。但し、水分のほと
んどない石膏ボード廃材は（４）ハンマーミルにて粉砕
し（５）レーモンドローラーミルにて微粉砕し（８）の
乾式混合機に導入する。Specifically, A. Raw materials (b) Ordinary gypsum board waste material (or processed gypsum board waste material) and (nu) Surfactant (0.005 parts by weight of oxy-ethylene-oxy-propylene block polymer per 1000 parts by weight of waste material, further processed) When gypsum board waste material is included, 0.005 parts by weight of sodium dioctyl sulfosuccinate) and an appropriate amount of water are added to (1) pulper (pulp disintegrator) to pulverize and defibrate. However, the gypsum board waste material having almost no water is pulverized by (4) a hammer mill, (5) finely pulverized by a Raymond roller mill, and introduced into the dry mixer of (8).
【００２０】Ｂ．前記Ａは（１）を経て（２）ヤンソン
スクリーン（篩式濾過機）にて化粧層、紙類を篩別け分
離し、（３）リファイナーに導入処理し（６）遠心分離
機にて水分をほとんど除却し（８）乾式混合機に導入す
る。 Ｃ．前記Ｂは（６）遠心分離機にて水分をほとんど除去
し（８）乾式混合機に導入する。 Ｄ．原料（ホ）（ヘ）（ト）（リ）は、（８）乾式混合
機に導入する。 Ｅ．原料（イ）（ハ）（チ）（ニ）を（８）乾式混合機
に導入する。 Ｆ．（８）乾式混合機に導入した全原料を充分混合す
る。 Ｇ．前記Ｆの混合粉体は（９）の連続混練機に導入さ
れ、適量の水を加え充分混練する。 Ｈ．前記Ｇの混練板を（１１）押出成型機に導入し、連
続的に生板を成型する。成型された生板を仮寸法の長さ
に切断する。 Ｉ．前記Ｈで成型された生板を（１２）のパレットに積
載する。 Ｊ．前記Ｉ前養生終了のパレット積載生板を、（１３）
一次養生室に搬入し、湿度９５％以上、温度４０〜５０
℃にて４〜８時間蒸気養生をする。B. The A passes through (1), (2) separates the makeup layer and paper with a Jansson screen (sieving filter), (3) introduces the refiner, and (6) removes water with a centrifuge. Almost removed (8) Installed in a dry mixer. C. Most of the water content of B is removed by a centrifuge (6) and introduced into a dry mixer (8). D. The raw materials (e), (e), (t) and (i) are introduced into (8) a dry mixer. E. FIG. The raw materials (a), (c), (h) and (d) are introduced into (8) a dry mixer. F. (8) Thoroughly mix all the raw materials introduced into the dry mixer. G. The mixed powder of F is introduced into the continuous kneader of (9), and an appropriate amount of water is added and kneaded sufficiently. H. The kneading plate of G is introduced into an extrusion molding machine (11) to continuously form a green plate. The molded green board is cut into a temporary length. I. The green plate molded by H is loaded on the pallet (12). J. (13) The pallet-laden green plate that has completed pre-curing
Brought into the primary curing room, humidity 95% or more, temperature 40-50
Steam cure at 4 ° C for 4-8 hours.
【００２１】Ｋ．前記Ｊの半硬化成板を（１４）でパレ
ットから外す。 Ｌ．前記Ｋの半硬化成板を（１５）の二次養生室に搬入
し、湿度９５％以上、温度６０〜７０℃にて８〜２４時
間養生する。 Ｍ．前記Ｌの硬化板を（１６）の裁断機で定尺に裁断
し、（１７）の品質・検査工程を経て耐火性建築材料と
して出荷する。 上記工程で得られた耐火性建築材料の物性を表４に示
す。K. The semi-cured plate of J is removed from the pallet at (14). L. The semi-cured plate of K is carried into the secondary curing chamber (15) and cured at a humidity of 95% or more and a temperature of 60 to 70 ° C. for 8 to 24 hours. M. The hardened plate of L is cut into a fixed size by a cutting machine of (16), and is shipped as a fire resistant building material through the quality / inspection step of (17). Table 4 shows the physical properties of the refractory building material obtained in the above process.
【００２２】[0022]
【表４】 [Table 4]
【００２３】[0023]
【発明の効果】本発明に係る耐火性建築材料の製造方法
では、石膏ボード廃材の再利用を図ると共に、優れた耐
火性建築材料を安く大量に製造することのできる。EFFECTS OF THE INVENTION According to the method for producing a refractory building material of the present invention, it is possible to reuse the waste gypsum board material and to produce an excellent refractory building material inexpensively in a large amount.
【図面の簡単な説明】[Brief description of drawings]
【図１】本実施例の湿式抄造方法を用いた耐火性建築材
料の製造方法のフローチャートである。FIG. 1 is a flow chart of a method for manufacturing a refractory building material using the wet papermaking method of the present embodiment.
【図２】本実施例の押出成型方法を用いた耐火性建築材
料の製造方法のフローチャートである。FIG. 2 is a flow chart of a method for manufacturing a refractory building material using the extrusion molding method of the present embodiment.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 28/14 28/18 38/00 ３０１ Ｃ Ｄ Ｅ０４Ｆ 13/14 １０２ Ａ 9127−2Ｅ // Ｃ０４Ｂ 111:28 (72)発明者 芹沢 則夫 静岡県沼津市大岡上石田2973 (72)発明者 太田 人司 静岡県富士市長通り42の３─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location C04B 28/14 28/18 38/00 301 C D E04F 13/14 102 A 9127-2E // C04B 111: 28 (72) Inventor Norio Serizawa 2973 Ookagami Ishida, Numazu City, Shizuoka Prefecture (72) Inventor Hitoshi Ota, 42-3, Fuji Mayor Street, Shizuoka Prefecture
Claims (4)
石膏ボード廃材に適量の水分、及び離解を促進する界面
活性剤を加えて湿式粉砕し、 上記粉砕物である石膏質原料３重量部〜７０重量部に、
水砕スラグ３０重量部〜７０重量部、石灰質等からなる
の水硬性材料３０重量部〜７０重量部、及び繊維質材料
２重量部〜１５重量部を混合したるスラリーを以て湿式
抄造方法又は押出成形方法で耐火性建築材料を製造する
ことを特徴とする耐火性建築材料の製造方法。1. A pulverized gypsum board waste material is dry pulverized, and / or an appropriate amount of water and / or a surfactant for accelerating disaggregation is added to the pulverized gypsum board waste material and wet pulverized to obtain 3 parts by weight of the pulverized gypsum raw material to 70 parts by weight,
Wet papermaking method or extrusion molding using 30 to 70 parts by weight of granulated slag, 30 to 70 parts by weight of hydraulic material made of calcareous material, and 2 to 15 parts by weight of fibrous material. A method for producing a refractory building material, comprising producing a refractory building material by the method.
加し、且つ該界面活性剤には、少なくともポリオキシア
ルキレン基を主成分とする界面活性剤が上記廃材量１０
００重量部に対して０．００１重量部〜０．０１重量部
含まれていることを特徴とする請求項１記載の耐火性建
築材料の製造方法。2. The surfactant is added during the wet pulverization, and the surfactant contains at least a polyoxyalkylene group-based surfactant as the waste material amount 10
The method for producing a refractory building material according to claim 1, wherein 0.001 part by weight to 0.01 part by weight is contained with respect to 00 parts by weight.
する界面活性剤がオキシ・エチレン、オキシ・プロピレ
ン又はこれらのブロックポリマー系の界面活性剤である
ことを特徴とする請求項２記載の耐火性建築材料の製造
方法。3. The fire resistance according to claim 2, wherein the surfactant containing a polyoxyalkylene group as a main component is oxy ethylene, oxy propylene, or a block polymer surfactant thereof. Manufacturing method of building materials.
石膏ボード廃材又はシージング石膏ボード廃材が含ま
れ、上記界面活性剤に少なくともアルキルスルホン酸
塩、アルキルアリール酸塩、又はアルキルスルホコハク
酸エステル塩を０．００１重量部〜０．０１重量部含ま
れていることを特徴とする請求項１乃至３のいずれかに
記載の耐火性建築材料の製造方法。4. The gypsum board waste material includes at least a decorative gypsum board waste material or a sheathing gypsum board waste material, and the surfactant contains at least an alkylsulfonate, an alkylaryl acid salt, or an alkylsulfosuccinic acid ester salt. The method for producing a refractory building material according to any one of claims 1 to 3, wherein the content is 001 parts by weight to 0.01 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21321893A JPH0829969B2 (en) | 1993-08-27 | 1993-08-27 | Method for manufacturing fireproof building materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21321893A JPH0829969B2 (en) | 1993-08-27 | 1993-08-27 | Method for manufacturing fireproof building materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0769700A JPH0769700A (en) | 1995-03-14 |
| JPH0829969B2 true JPH0829969B2 (en) | 1996-03-27 |
Family
ID=16635493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21321893A Expired - Fee Related JPH0829969B2 (en) | 1993-08-27 | 1993-08-27 | Method for manufacturing fireproof building materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0829969B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002192511A (en) * | 2000-12-27 | 2002-07-10 | Nitto Boseki Co Ltd | Board for building and manufacturing method for board for building |
| CN106007487A (en) * | 2016-05-19 | 2016-10-12 | 陆玉如 | Overall gypsum board less prone to deformation |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4754709B2 (en) * | 2001-04-02 | 2011-08-24 | 株式会社エーアンドエーマテリアル | Fiber-reinforced slag gypsum paperboard and method for producing the same |
| KR100646929B1 (en) | 2002-10-29 | 2006-11-23 | 요시노 셋고 가부시키가이샤 | Method for producing light gypsum board |
| JP4938234B2 (en) * | 2004-11-29 | 2012-05-23 | ニチハ株式会社 | Light weight inorganic board and method for producing the light weight inorganic board |
| JP4814154B2 (en) * | 2007-05-21 | 2011-11-16 | 富士川建材工業株式会社 | Refractory composition using waste gypsum, refractory molded body, refractory coating structure, and method for forming refractory coating layer |
| CN105541390A (en) * | 2015-12-09 | 2016-05-04 | 文登蓝岛建筑工程有限公司 | Light-weight high-strength plasterboard and preparation method thereof |
| KR102626622B1 (en) * | 2017-06-29 | 2024-01-19 | 크나우프 깁스 카게 | Method and Producing a Gypsum Slurry for Forming Gypsum Products and Method of Manufacturing a Gypsum Product |
-
1993
- 1993-08-27 JP JP21321893A patent/JPH0829969B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002192511A (en) * | 2000-12-27 | 2002-07-10 | Nitto Boseki Co Ltd | Board for building and manufacturing method for board for building |
| CN106007487A (en) * | 2016-05-19 | 2016-10-12 | 陆玉如 | Overall gypsum board less prone to deformation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0769700A (en) | 1995-03-14 |
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