JPH04166303A - Continuously producing device for lightweight gypsum cured object - Google Patents
Continuously producing device for lightweight gypsum cured objectInfo
- Publication number
- JPH04166303A JPH04166303A JP29268290A JP29268290A JPH04166303A JP H04166303 A JPH04166303 A JP H04166303A JP 29268290 A JP29268290 A JP 29268290A JP 29268290 A JP29268290 A JP 29268290A JP H04166303 A JPH04166303 A JP H04166303A
- Authority
- JP
- Japan
- Prior art keywords
- gypsum
- slurry
- belt
- reinforcing
- lightweight
- 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.)
- Pending
Links
- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 113
- 239000010440 gypsum Substances 0.000 title claims abstract description 113
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 55
- 239000002002 slurry Substances 0.000 claims abstract description 48
- 239000002994 raw material Substances 0.000 claims description 7
- 238000010924 continuous production Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 40
- 238000005452 bending Methods 0.000 abstract description 12
- 239000011111 cardboard Substances 0.000 abstract description 5
- 239000002344 surface layer Substances 0.000 abstract description 3
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 16
- 239000000047 product Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 13
- 239000000835 fiber Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 230000005484 gravity Effects 0.000 description 8
- 230000009970 fire resistant effect Effects 0.000 description 7
- 239000012783 reinforcing fiber Substances 0.000 description 7
- 239000006260 foam Substances 0.000 description 6
- 239000003365 glass fiber Substances 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000002562 thickening agent Substances 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920000609 methyl cellulose Polymers 0.000 description 3
- 239000001923 methylcellulose Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229920002978 Vinylon Polymers 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000012784 inorganic fiber Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 229920005615 natural polymer Polymers 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- -1 sodium alkyl sulfate Chemical class 0.000 description 2
- 229920005613 synthetic organic polymer Polymers 0.000 description 2
- 150000004684 trihydrates Chemical class 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は軽量石膏硬化体の連続製造装置に係り、特に補
強網で補強された軽量石膏硬化体を連続的に製造するこ
とができる装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for continuously manufacturing lightweight hardened gypsum bodies, and more particularly to an apparatus capable of continuously manufacturing lightweight hardened gypsum bodies reinforced with a reinforcing net. .
［従来の技術］
気泡を多量に含む石膏スラリーを硬化させて製造される
軽量石膏硬化体（多泡質石膏板）は、その軽量性と共に
、石膏（三水石膏）の特徴である不燃性、１００℃以上
に加熱されたときの結晶水の脱水による吸熱反応、並び
に硬化体内に含有される多量の気泡による断熱作用等の
優れた耐火特性から、鉄骨耐火被覆材、耐火間仕切材等
の建材等として従来より広く用いられている。[Prior Art] A lightweight hardened gypsum body (multicellular gypsum board) manufactured by curing a gypsum slurry containing a large amount of air bubbles is not only lightweight but also has the characteristics of nonflammability and gypsum trihydrate. Due to its excellent fire-resistant properties, such as the endothermic reaction caused by dehydration of crystalline water when heated to 100°C or higher, and the heat insulation effect due to the large amount of air bubbles contained within the hardened body, it is used as a building material such as fire-resistant coating materials for steel frames and fire-resistant partition materials. It has been widely used as.
この種の硬化体を連続的に製造する方法としては、例え
ば特開昭５７−１４４７４９号が提案されている。この
方法では石膏スラリー及び気泡石膏スラリーをベルトコ
ンベアの上に流すことを可能にするため、つまり型枠の
役目を果させるために、外周部に厚紙を配している。外
周部の厚紙は、また、軽量石膏硬化体が多量の気泡を含
有していることに起因した、表面が脆くて取扱い難く、
表面が平滑となり難いなどの欠点を解消し、硬化体の表
面の平滑さを出すためにも不可欠である。As a method for continuously producing this type of cured product, for example, Japanese Patent Application Laid-Open No. 144749/1984 has been proposed. In this method, cardboard is placed around the outer periphery to allow the gypsum slurry and aerated gypsum slurry to flow onto a belt conveyor, that is, to serve as a formwork. The cardboard on the outer periphery also has a brittle surface and is difficult to handle, due to the fact that the lightweight gypsum hardened material contains a large amount of air bubbles.
It is indispensable to eliminate defects such as difficulty in making the surface smooth, and to achieve smoothness on the surface of the cured product.
しかしながら、火災時の耐火材としての軽量石膏硬化体
の使用目的からは、紙、布のような可燃性ないし発煙性
の物質を用いることは耐火材としての特性を阻害するこ
とになる。However, considering the purpose of using the lightweight hardened gypsum as a fire-resistant material in the event of a fire, using flammable or smoke-emitting substances such as paper or cloth impedes its properties as a fire-resistant material.
このような従来の多泡質軽量石膏硬化体の問題点を解決
するものとして、両側辺に波板状のレッジを有し、水平
に設置されたボディーベルトと、このボディーベルトの
側辺に配置され、該レッジの内側に沿って走行されるサ
イドベルトと、ボディーベルトの上側に水平に設置され
たならしベルトと、を備えた装置を用い、ボディーベル
ト、サイドベルト及びならしベルトを同期駆動させ、緻
密質石膏スラリー、気泡石膏スラリー及び緻密質石膏ス
ラリーをボディーベルト上に順次に供給して積層する軽
量石膏硬化体の製造方法が提案されている（特開昭６３
−２４２５０３号）。To solve these problems of conventional multicellular lightweight gypsum hardened bodies, we have developed a body belt that has corrugated ledges on both sides and is installed horizontally, and a body belt that is placed on the sides of this body belt. The body belt, the side belt, and the leveling belt are driven synchronously using a device that includes a side belt that runs along the inside of the ledge, and a leveling belt installed horizontally above the body belt. A method for producing a lightweight hardened gypsum body has been proposed, in which dense gypsum slurry, cellular gypsum slurry, and dense gypsum slurry are sequentially supplied and laminated onto a body belt (Japanese Patent Application Laid-Open No. 1983-1993).
-242503).
特開昭６３−２４２５０３号の方法によれば、表面が平
滑で固く、かつ高い曲げ強度を有し、しかも、可燃性な
いし発煙性の材料を使用することなく、耐火材としての
十分な不燃性を備える軽量石膏硬化体を連続的かつ効率
的に製造することが可能とされる。According to the method of JP-A No. 63-242503, the surface is smooth, hard, and has high bending strength, and it also has sufficient nonflammability as a fireproof material without using flammable or smoke-emitting materials. It is possible to continuously and efficiently manufacture a lightweight gypsum hardened body comprising:
［発明が解決しようとする課題］
しかしながら、軽量石膏硬化体の耐火建材等の用途とし
ては、常に、その機械的強度や耐久性のより一層の改善
が望まれている。[Problems to be Solved by the Invention] However, when using lightweight hardened gypsum products as fire-resistant building materials, it is always desired to further improve their mechanical strength and durability.
本発明は上記特開昭６３−２４２５０３号の方法により
製造される軽量石膏硬化体よりも更に曲げ強度等が改善
された軽量石膏硬化体を連続的に製造することができる
装！を提供することを目的とする。The present invention is a device that can continuously produce a lightweight hardened gypsum body whose bending strength is further improved compared to the lightweight hardened gypsum body manufactured by the method of JP-A No. 63-242503. The purpose is to provide
［課題を解決するための手段］
請求項（１）の軽量石膏硬化体の連続製造装置は、水平
に設置されたボディーベルトと、このボディーベルトの
両側辺に垂直に配置されるサイドベルトと、サイドベル
トを保持するベルトガイドと、ボディーベルトの上側に
水平に設置された成形へらと、石膏原料スラリー供給装
置と、補強網供給装置とを備えることを特徴とする
請求項（２）の軽量石膏硬化体の連続製造装置は、請求
項（１）の軽量石膏硬化体の連続製造装置において、前
記補強網供給装置は、補強網に張力を与えつつ補強網を
供給することを特徴とする。[Means for Solving the Problems] The continuous production apparatus for lightweight hardened gypsum bodies according to claim (1) includes a body belt installed horizontally, side belts arranged vertically on both sides of the body belt, The lightweight gypsum according to claim (2), characterized in that it comprises a belt guide for holding the side belt, a forming spatula installed horizontally above the body belt, a gypsum raw material slurry supply device, and a reinforcing net supply device. The continuous manufacturing apparatus for a hardened body is characterized in that in the continuous manufacturing apparatus for a lightweight hardened gypsum body according to claim (1), the reinforcing net supply device supplies the reinforcing net while applying tension to the reinforcing net.
以下、本発明を図面を参照して詳細に説明する。Hereinafter, the present invention will be explained in detail with reference to the drawings.
第１図〜第５図は本発明方法の実施に好適な製造装置の
実施例を説明する図であって、第１図は側断面図、第２
図は平面図（ただし、第２図において、供給装置及びベ
ルトガイドは図示されていない。）、第３図は第２図の
ＩＩＩ−ＩＩＩ線に沿う断面の拡大図（ただし、第３図
において、石膏硬化体は図示されていない。）、第４図
は成形へらの拡大断面図、第５図は補強網供給装置の詳
細を示す断面図である。1 to 5 are diagrams for explaining an embodiment of a manufacturing apparatus suitable for carrying out the method of the present invention, in which FIG. 1 is a side sectional view, and FIG.
The figure is a plan view (however, the feeding device and belt guide are not shown in Fig. 2), and Fig. 3 is an enlarged cross-sectional view taken along line III-III in Fig. 2 (however, in Fig. 3, the feeding device and belt guide are not shown). (The hardened gypsum body is not shown.) FIG. 4 is an enlarged sectional view of the forming spatula, and FIG. 5 is a sectional view showing details of the reinforcing net supply device.
図示の如く、本実施例装置は、水平に設置されたボディ
ーベルト１を有し、このボディーベルト１の両側辺には
サイドベルト２Ａ、２Ｂが垂直に配置され、またこのサ
イドベルト２Ａ、２Ｂを保持するベルトガイド３Ａ、３
Ｂが設けられている。図中、１１．１２はボディーベル
ト１の駆動用ローラ、１３，１４，１５．１６はサイド
ベルト２Ａ、２Ｂの駆動用ローラである。As shown in the figure, the device of this embodiment has a body belt 1 installed horizontally, and side belts 2A and 2B are vertically arranged on both sides of the body belt 1. Belt guides 3A, 3 to hold
B is provided. In the figure, 11.12 is a driving roller for the body belt 1, and 13, 14, 15.16 is a driving roller for the side belts 2A, 2B.
これらローラ１１，１２，１３，１４，１５゜１６には
可変速機付モータなどの駆動装置（図示路）が連設され
ており、ボディーベルト１及びサイドベルト２Ａ、２Ｂ
は同期駆動即ち同一速度で同方向に走行可能とされてい
る。なお、上記駆動装置は、各ローラ１１〜１６にそれ
ぞれ別個に設けても良く、また共通の駆動源からチェー
ン、タイミングベルトなど適宜の動力伝達手段によって
ローラ１１〜１６へ駆動力を伝達するものであっても良
い。These rollers 11, 12, 13, 14, 15° 16 are connected to a drive device (path shown) such as a variable speed motor, and the body belt 1 and side belts 2A, 2B
are capable of synchronous driving, that is, running at the same speed and in the same direction. The above drive device may be provided separately for each of the rollers 11 to 16, or may transmit driving force to the rollers 11 to 16 from a common drive source using an appropriate power transmission means such as a chain or a timing belt. It's okay.
ボディーベルト１の上方には、ベルト走行方向の上流側
から順に、緻密質石膏スラリーを供給する第１のスラリ
ー供給装置４、補強網を供給する第１の補強網供給装置
５、多泡質石膏スラリーを供給する第２のスラリー供給
装置６、補強網を供給する第２の補強網供給装置７、及
び緻密質石膏スラリーを供給する第３の供給装置８が設
けられており、第１の補強網供給袋Ｍ５と第２のスラリ
ー供給装置６との間の位置（好ましくは第１の補強網供
給装置５の直後の位置）、第２のスラリー供給装置６と
第２の補強網供給装置７との間の位置及び第３のスラリ
ー供給装置８の下流側には、それぞれ、成形へら９ （
９Ａ、９Ｂ、９Ｃ）がボディーベルト１の上側に水平に
設置されている。Above the body belt 1, in order from the upstream side in the belt running direction, a first slurry supply device 4 that supplies dense gypsum slurry, a first reinforcement net supply device 5 that supplies a reinforcement net, and porous gypsum. A second slurry supply device 6 for supplying slurry, a second reinforcement net supply device 7 for supplying a reinforcement net, and a third supply device 8 for supplying dense gypsum slurry are provided. The position between the net supply bag M5 and the second slurry supply device 6 (preferably the position immediately after the first reinforcement net supply device 5), the second slurry supply device 6 and the second reinforcement net supply device 7 A forming spatula 9 (
9A, 9B, 9C) are installed horizontally above the body belt 1.
第１及び第２の補強網供給装置５，７としては、第５図
に示す如く、ドラム２０から供給される補強網Ｎを挟む
などの構成により、補強網Ｎに張力を与えつつ供給する
ものが好ましい。また、補強網供給装置は補強網の種類
に応じて補強網に付与する張力を変更できるようにする
のが有利である。As shown in FIG. 5, the first and second reinforcing net supply devices 5 and 7 are configured to sandwich the reinforcing net N supplied from the drum 20, thereby supplying the reinforcing net N while applying tension thereto. is preferred. Furthermore, it is advantageous for the reinforcing net supply device to be able to change the tension applied to the reinforcing net depending on the type of reinforcing net.
次にこのような本発明の装置を用い、多泡質石膏層とこ
れをはさむ緻密質石膏層と、多泡質石膏層と緻密質石膏
層との間に設けられた補強網とで構成される軽量石膏硬
化体を製造する方法について説明する。Next, using such a device of the present invention, a method is constructed of a porous gypsum layer, a dense gypsum layer sandwiching the same, and a reinforcing net provided between the porous gypsum layer and the dense gypsum layer. A method for producing a lightweight hardened gypsum body will be explained.
まず、図示の装置のボディーベルト１及びサイドベルト
２Ａ、２Ｂを同一速度で駆動させ、ボディーベルト１及
びサイドベルト２Ａ、２Ｂで形成される凹部に、第１の
スラリー供給装置４より緻密質石膏スラリーＡを供給し
た後、第１の補強網供給装置５より補強網Ｎを該補強網
Ｎに張力を与えながら供給積層し、成形へら９Ａでなら
し成形する。次いで、第２のスラリー供給装置６より多
泡質石膏スラリーＢを供給した後、成形へら９Ｂでなら
し成形し、更に、第２の補強網供給装置７より補強網Ｎ
を該補強網Ｎに張力を与えながら供給し、最後に、第３
のスラリー供給装置８より緻密質石膏スラリーＡを供給
して成形へら９Ｃでならし成形する。First, the body belt 1 and side belts 2A, 2B of the illustrated device are driven at the same speed, and dense gypsum slurry is poured from the first slurry supply device 4 into the recess formed by the body belt 1 and side belts 2A, 2B. After supplying the reinforcing net A, the reinforcing net N is supplied from the first reinforcing net feeding device 5 while applying tension to the reinforcing net N, and is laminated, and the reinforcing net N is flattened with a forming spatula 9A. Next, after supplying the porous gypsum slurry B from the second slurry supply device 6, it is level-molded with a forming spatula 9B, and furthermore, a reinforcing net N is supplied from the second reinforcing net supply device 7.
is supplied to the reinforcing net N while applying tension, and finally, the third
The dense gypsum slurry A is supplied from the slurry supply device 8 and is smoothed using a shaping spatula 9C.
緻密質石膏スラリーＡ、多泡質石膏スラリーＢは、ボデ
ィーベルト１及びサイドベルト２Ａ。The dense gypsum slurry A and the foamed gypsum slurry B are used in the body belt 1 and the side belt 2A.
２Ｂで形成される凹部で、成形へら９Ａ、９Ｂ。In the recess formed by 2B, forming spatulas 9A, 9B.
９Ｃで成形された後移動する間に表層の緻密質石膏層１
０ａと内部の多泡質石膏層１０ｂは一体硬化し、同時に
内部に配列された補強網Ｎは拘束される。従って、ボデ
ィーベルト１とサイドベルト２Ａ、２Ｂには供給された
原料石膏スラリーが、型枠を必要としない程度の強度に
達するまでの長さが必要である。得られた硬化体１０は
、次いで、適当な長さに切断された後乾燥工程で乾燥さ
れて製品とされる。The dense gypsum layer 1 on the surface layer while being moved after being molded at 9C
0a and the internal porous gypsum layer 10b are cured together, and at the same time the reinforcing net N arranged inside is restrained. Therefore, the body belt 1 and the side belts 2A, 2B need to be long enough for the supplied raw material gypsum slurry to reach a strength that does not require a mold. The obtained cured product 10 is then cut into appropriate lengths and dried in a drying process to form a product.
なお、図示のような装置においてボディーベルトｌ、サ
イドベルト２Ａ、２Ｂの表面はそのままの状態でも、硬
化体を離型性よく製造を行なうことができるが、これら
のベルト表面はフッ素樹脂等でコーティングして用いる
ことにより硬化体の付着をより確実に防止でき、極めて
有利である。In addition, in the apparatus shown in the figure, it is possible to manufacture a cured product with good mold releasability even when the surfaces of the body belt 1 and side belts 2A and 2B are left as they are, but these belt surfaces may be coated with fluororesin or the like. By using it as a cured product, adhesion of the cured product can be more reliably prevented, which is extremely advantageous.
本発明で使用するに好適なボディーベルトとしては、バ
ンド−化学社製普通コンベアベルトが挙げられる。また
、サイドベルトとしては、同社製サンラインベルトが好
適である。A body belt suitable for use in the present invention includes a common conveyor belt manufactured by Band Kagaku Co., Ltd. Further, as the side belt, the Sunline belt made by the same company is suitable.
また、成形へらの形状は平板でも良いが、第４図に示す
如（、曲面と平面とを組み合わせ、ボディーベルト１に
対して平行な面９ａを持たせることにより成形性がより
一層向上される。このような成形へら９は、第１図及び
第２図に示す如（、多泡質石膏スラリーを供給する第２
のスラリー供給装置６の前後及び第３のスラリー供給装
置８のボディーベルト走行方向下流側に設けるのが好ま
しく、更に成形性の向上のためには、各供給装置毎に１
又は２以上の成形へらを設けるのが好ましい。Further, the shape of the forming spatula may be a flat plate, but as shown in FIG. .Such a forming spatula 9 is used as shown in FIG. 1 and FIG.
It is preferable to provide the slurry supply device 6 before and after the slurry supply device 6 and downstream of the third slurry supply device 8 in the running direction of the body belt.
Alternatively, it is preferable to provide two or more shaping spatulas.
次に本発明の装置で製造される軽量石膏硬化体の製造原
料について説明する。Next, the raw material for producing the lightweight hardened gypsum body produced by the apparatus of the present invention will be explained.
軽量石膏硬化体の外表面を形成する緻密質石膏用スラリ
ーは、例えば、半水石膏と水又は半水石膏と水及び補強
繊維を主体とするペーストに、必要に応じて凝結調節剤
及び増粘剤を加えて調製される。The slurry for dense gypsum that forms the outer surface of a lightweight hardened gypsum body is, for example, a paste mainly consisting of gypsum hemihydrate and water or gypsum hemihydrate, water, and reinforcing fibers, and optionally a setting regulator and thickener. It is prepared by adding an agent.
ここで、補強繊維としては、ガラス繊維等の無機繊維、
天然もしくは合成の有機高分子繊維が挙げられる。ガラ
ス繊維としては、スラリー混練時にモノフィラメントに
解繊する収束の弱いものが好適であり、また、有機高分
子繊維の具体例としてはビニロン繊維等が挙げられる。Here, the reinforcing fibers include inorganic fibers such as glass fibers,
Examples include natural or synthetic organic polymer fibers. As the glass fiber, it is preferable to use a weakly convergent fiber that is defibrated into monofilaments during slurry kneading, and specific examples of the organic polymer fiber include vinylon fiber and the like.
これらは、単独で、あるいは２種以上を組み合せて配合
することができる。原料の半水石膏に対する補強繊維の
割合が少な過ぎると十分な補強効果が得られず、また逆
に多過ぎると成形性が損なわれる場合がある。従って、
補強繊維量は半水石膏に対して０．５〜５重量％とする
のが好ましい。These may be used alone or in combination of two or more. If the ratio of reinforcing fibers to the raw material gypsum hemihydrate is too small, a sufficient reinforcing effect cannot be obtained, and if it is too large, moldability may be impaired. Therefore,
The amount of reinforcing fibers is preferably 0.5 to 5% by weight based on gypsum hemihydrate.
また、凝結調節剤の種類には、遅緩剤としてオキシカル
ボン酸及びその塩類、グルコン酸及びその塩類、リン酸
及びその塩類、アミノ酸、糖類なとがあり、促進剤とし
ては硫酸カルシウム、硫酸ナトリウム、硫酸アルミニウ
ム等の硫酸塩がある。凝結調節剤の添加率は半水石膏に
対して０．０１〜５，０重量％が好ましい。In addition, the types of coagulation regulators include oxycarboxylic acids and their salts, gluconic acid and its salts, phosphoric acid and its salts, amino acids, and sugars as retardants, and calcium sulfate and sodium sulfate as accelerators. , aluminum sulfate, and other sulfates. The addition rate of the setting regulator is preferably 0.01 to 5.0% by weight based on the gypsum hemihydrate.
また、増粘剤としてはポリビニルアルコール（ＰＶＡ）
、メチルセルロース（ＭＣ）等を用いることができ、
その添加率は半水石膏に対して０６１〜５．０重量％が
好ましい。In addition, polyvinyl alcohol (PVA) is used as a thickener.
, methylcellulose (MC), etc. can be used,
The addition rate is preferably 0.61 to 5.0% by weight based on gypsum hemihydrate.
一方、多泡質石膏スラリーは、半水石膏と水を主体とし
、必要に応じて補強繊維を混合し、適当な界面活性剤を
加え、凝結調節剤を添加し、気泡を導入して調製される
。多泡質石膏スラリ一番こ使用する凝結調節剤や補強繊
維は、緻密質石膏スラリーに使用するものが使用でき、
好ましし１補強繊維混入率は半水石膏に対して０．５〜
５重量％である。On the other hand, multicellular gypsum slurry is prepared by mainly containing gypsum hemihydrate and water, mixing reinforcing fibers as necessary, adding an appropriate surfactant, a setting regulator, and introducing air bubbles. Ru. The setting regulator and reinforcing fibers used in multicellular gypsum slurry can be the same as those used in dense gypsum slurry.
Preferably 1 reinforcing fiber mixing ratio is 0.5 to 0.5 to gypsum hemihydrate.
It is 5% by weight.
気泡の導入方法は、プレフォーム法又はミックスフオー
ム法のいずれによっても良い。プレフォーム法は、まず
、水にアルキル硫酸ソーダ、アルキルベンゼンスルホン
酸ソーダ、ポリオキシエチレンアルキル硫酸塩等の公知
の気泡剤を半水石膏に対し、Ｏ，，０２〜２．０重量％
添加し、強力に撹拌して発泡させる。この際にＰＶＡ、
ＭＣなどの増粘剤を半水石膏に対し、０．０５〜３．０
重量％添加すると、安定した気泡ができる。この発泡水
と半水石膏とを混合してスラリーとする。或いは、水１
００重量部に対して上記起泡剤０．１〜１０重量部と増
粘剤０．２〜１５重量部を混合した液と空気とを、円筒
型容器にビーズ又はメツシュを充填させたいわゆる発泡
機に通して泡を生成させる。この泡と水と半水石膏とを
混合してスラリーとする。ミックスフオーム法は、同様
な配合で材料を同時に投入し、強力に撹拌してスラリー
とする。いずれの気泡導入法をとる場合でも、水の量は
半水石膏に対し４０〜１００重量％が好適である。The bubbles may be introduced by either a preform method or a mix foam method. In the preform method, first, a known foaming agent such as sodium alkyl sulfate, sodium alkylbenzenesulfonate, or polyoxyethylene alkyl sulfate is added to water in an amount of 0.02 to 2.0% by weight based on gypsum hemihydrate.
Add and stir vigorously to foam. At this time, PVA,
Add a thickener such as MC to gypsum hemihydrate at a rate of 0.05 to 3.0.
Addition of % by weight creates stable bubbles. This foamed water and hemihydrate gypsum are mixed to form a slurry. Or water 1
A so-called foaming method is prepared by filling a cylindrical container with beads or mesh by mixing a mixture of 0.1 to 10 parts by weight of the above-mentioned foaming agent and 0.2 to 15 parts by weight of a thickener with air to 0.00 parts by weight. Pass it through a machine to generate foam. This foam, water, and gypsum hemihydrate are mixed to form a slurry. In the mix form method, materials with a similar composition are added at the same time and vigorously stirred to form a slurry. Regardless of the bubble introduction method, the amount of water is preferably 40 to 100% by weight based on gypsum hemihydrate.
なお、本発明において、使用する半水石膏はα型、Ｂ型
のいずれでも良い。In the present invention, the hemihydrate gypsum used may be either α-type or B-type.
また、緻密質石膏層と多泡質石膏層に挟まれる補強網を
構成する繊維としては、ガラス繊維、炭素繊維等の無機
質繊維又は天然もしくは合成の有機高分子繊維が挙げら
れる。有機高分子繊維の具体例としてはビニロン繊維等
が挙げられる。これらの繊維束で構成される補強網は、
その使用量が少な過ぎると十分な補強効果が得られず、
また逆に多過ぎると緻密質石膏層と中央の多泡質石膏層
の間で剥離を起こし易くなる。従って、補強網使用量は
軽量石膏硬化体全重量の０．１〜５重量％量とするのが
好ましい。補強網混入量は、補強網を構成する繊維の番
手や目開き等を変えることにより増減することができる
。なお、補強網の目開きは広過ぎると、網に使用する繊
維が太くなり成形性が悪（なる。また、狭いと繊維含有
緻密質石膏層と中央の多泡質石膏層との間で剥離を起こ
し易くなる。従って、網の目開きは５〜３０ ｍ、ｍと
するのが適当である。Furthermore, examples of the fibers constituting the reinforcing network sandwiched between the dense gypsum layer and the porous gypsum layer include inorganic fibers such as glass fibers and carbon fibers, and natural or synthetic organic polymer fibers. Specific examples of organic polymer fibers include vinylon fibers and the like. The reinforcing network composed of these fiber bundles is
If the amount used is too small, sufficient reinforcing effect will not be obtained,
On the other hand, if the amount is too high, peeling may easily occur between the dense gypsum layer and the central porous gypsum layer. Therefore, it is preferable that the reinforcing net be used in an amount of 0.1 to 5% by weight based on the total weight of the lightweight hardened gypsum body. The amount of reinforcing net mixed in can be increased or decreased by changing the number, opening, etc. of the fibers constituting the reinforcing net. In addition, if the opening of the reinforcing mesh is too wide, the fibers used in the mesh will become thick and the formability will be poor.If the opening is too narrow, the fiber-containing dense gypsum layer and the central porous gypsum layer may separate. Therefore, it is appropriate that the opening of the mesh should be 5 to 30 m.
本発明において、この補強網の供給にあたり、前述の如
く、補強網に張力を与えながら供給することにより、補
強網は平面状になり、硬化後の軽量石膏硬化体に曲げ応
力が加わった時に、補強網各部に均等に引っ張り応力が
加わり、補強効果がより一層確実になる。In the present invention, when supplying this reinforcing net, as described above, by supplying the reinforcing net while applying tension, the reinforcing net becomes flat, and when bending stress is applied to the lightweight gypsum hardened body after curing, Tensile stress is applied evenly to each part of the reinforcing net, making the reinforcing effect even more reliable.
本発明において、製造される硬化体の多泡質石膏層の厚
さは、厚さが厚く、外表面の緻密質石膏層の厚さが薄過
ぎると十分な強度が得られず、また逆に多泡質石膏層の
厚さが薄過ぎて、緻密質石膏層の厚さが厚過ぎると硬化
体の比重が太き（なり、軽量性が損なわれる。このため
、多泡質石膏層の厚さは、軽量石膏硬化体の全層の厚さ
の５０〜９５％程度の厚さとなるようにするのが適当で
ある。In the present invention, if the thickness of the porous gypsum layer of the hardened body produced is large, and the thickness of the dense gypsum layer on the outer surface is too thin, sufficient strength will not be obtained; If the thickness of the porous gypsum layer is too thin and the thickness of the dense gypsum layer is too thick, the specific gravity of the cured product will become large (and the lightness will be impaired. For this reason, the thickness of the porous gypsum layer will be It is appropriate that the thickness be approximately 50 to 95% of the total thickness of the lightweight hardened gypsum body.
また、本発明において、緻密質石膏層の比重は一般に０
．９〜１．１程度、多泡質石膏層の比重は一般に０．４
〜０．７程度とされる。Furthermore, in the present invention, the specific gravity of the dense gypsum layer is generally 0.
．． About 9 to 1.1, the specific gravity of the porous gypsum layer is generally 0.4
It is estimated to be about 0.7.
［作用］
本発明の装置で製造される軽量石膏硬化体は、補強網で
補強した多泡質石膏層の両表面を更に緻密質石膏層で被
覆した構成とされており、可燃性ないし発煙性物質によ
る被覆がないので、石膏硬化体の耐火材としての特徴が
損なわれることがなく、同一嵩比重の多泡質石膏のみの
硬化体と比べ１曲げ強度が高く、また、同一嵩比重の、
補強網で補強されていない多泡質石膏層の両表面を緻密
質石膏層で被覆した硬化体と比べても曲げ強度は非常に
高い。しかも表面が硬く平滑である。このため、そのま
ま塗装あるいは壁紙等で仕上げることもでき、壁紙の接
着性も良好である。[Function] The lightweight hardened gypsum body produced by the apparatus of the present invention has a structure in which both surfaces of a porous gypsum layer reinforced with a reinforcing net are further covered with a dense gypsum layer, and it is not flammable or smoke-emitting. Since there is no coating with substances, the characteristics of the cured gypsum as a fireproof material are not impaired, and the bending strength is higher than that of a cured body of only porous gypsum with the same bulk specific gravity.
The bending strength is extremely high compared to a cured product in which both surfaces of a porous gypsum layer that is not reinforced with a reinforcing network are covered with dense gypsum layers. Moreover, the surface is hard and smooth. Therefore, it can be painted or finished with wallpaper, etc., and the adhesiveness of wallpaper is also good.
従来一般に用いられる平板状のベルトのみでは、原料の
石膏スラリーをベルト上に直接供給することは不可能で
あったが、本発明の装置によれば、ボディーベルト上に
原料を直接供給することができる。即ち、ボディーベル
トの平板部とその両側辺部設置されたサイドベルトとで
、凹部が形成され、この凹部が移動型枠の役目を果たす
。このサイドベルトは、裏面をベルトガイドで支持する
ことにより、その形状を安定に保持することができる。Conventionally, it was impossible to directly supply the raw material gypsum slurry onto the belt using only a generally used flat belt, but with the device of the present invention, it is possible to directly supply the raw material onto the body belt. can. That is, a concave portion is formed by the flat plate portion of the body belt and the side belts installed on both sides thereof, and this concave portion serves as a movable formwork. This side belt can maintain its shape stably by supporting the back surface with a belt guide.
このサイドベルトは、製品である軽量石膏硬化体の側面
を平滑な平面に仕上げる役目を果たす。更に、上部の成
形へらにより、硬化体の上面も同様に平滑に仕上げるこ
とができる。特に、本発明においては、比較的場所をと
らない成形へらを用いて表面をならし成形するため、こ
の成形へらを各供給装置毎に設けて、各層毎にならし成
形することにより、各層がいずれも均一厚さの軽量石膏
硬化体を製造することが可能とされる。This side belt plays the role of finishing the side surface of the lightweight gypsum hardened product into a smooth plane. Furthermore, the upper surface of the cured product can also be finished smoothly using the upper shaping spatula. In particular, in the present invention, since the surface is level-molded using a forming spatula that takes up relatively little space, this forming spatula is provided for each supply device and the level-forming is performed for each layer, so that each layer is In either case, it is possible to produce a lightweight gypsum hardened body with a uniform thickness.
従って、本発明の装置によれば、厚紙等の型枠を必要と
せずに、平滑な表面を有する軽量石膏硬化体を連続的に
製造することができる。Therefore, according to the apparatus of the present invention, a lightweight hardened gypsum body having a smooth surface can be continuously produced without requiring a mold such as cardboard.
しかして、本発明の製造装置により、前に流し込み成形
した層が未だ完全に硬化しないうちに、次の層のスラリ
ーを流し込み成形することにより、隣接する多泡質石膏
１と緻密質石膏層との界面においては、三水石膏の針状
の結晶が一方の層から他方の層へと成長し合って析出す
るため、両層間の結合が極めて強固な軽量石膏硬化体が
容易に製造される。Therefore, by using the manufacturing apparatus of the present invention, the slurry of the next layer is poured and molded before the previously cast layer has not yet completely hardened, so that the adjacent porous gypsum 1 and the dense gypsum layer are separated. At the interface, needle-shaped crystals of trihydrate gypsum grow and precipitate from one layer to the other, so a lightweight gypsum hardened body with an extremely strong bond between both layers can be easily produced.
［実施例］
以下、具体的な製造実施例を挙げて本発明を更に具体的
に説明するが、本発明はその要旨を超えない限り、以下
の実施例に限定されるものではない。[Examples] Hereinafter, the present invention will be described in more detail with reference to specific manufacturing examples, but the present invention is not limited to the following examples unless it exceeds the gist thereof.
実施例１
β−半水石膏１００重量部に対し、水６５重量部とガラ
ス繊維０．８重量部を混練して、スラリーＡを調製した
。別に、８０重量部の水にアニオン型界面活性剤を０．
０１５重量部及びＰＶＡを０．１重量部加え、ミキサー
にて６０００ｒｐｍで高速撹拌して起泡させ、これにβ
−半水石膏１００重量部とガラス繊維１．５重量部を加
えてビンミキサーにて混合し、多泡質石膏スラリーＢを
調製した。更に、網の目開きが２５ｍｍ、幅が６００ｍ
ｍで２３０ｇ／ｒｒ？のガラスネットを補強網Ｎとした
。Example 1 Slurry A was prepared by kneading 100 parts by weight of β-hemihydrate gypsum, 65 parts by weight of water, and 0.8 parts by weight of glass fibers. Separately, add 0.0% anionic surfactant to 80 parts by weight of water.
015 parts by weight and 0.1 parts by weight of PVA were added, stirred at high speed at 6000 rpm in a mixer to foam, and added β
- 100 parts by weight of gypsum hemihydrate and 1.5 parts by weight of glass fiber were added and mixed in a bottle mixer to prepare multifoamed gypsum slurry B. Furthermore, the mesh opening is 25mm and the width is 600m.
230g/rr in m? The glass net was used as the reinforcing net N.
第１〜５図に示す装置を用い供給装置４及び８よりスラ
リーＡを供給し、供給装置６よりスラリーＢを供給し、
供給装置５及び７よりガラス補強網Ｎを供給し、平滑な
平面を有する軽量石膏硬化体を製造した。Using the apparatus shown in FIGS. 1 to 5, supplying slurry A from supply devices 4 and 8, supplying slurry B from supply device 6,
The glass reinforcing net N was supplied from the supply devices 5 and 7, and a lightweight hardened gypsum body having a smooth plane was manufactured.
得られた軽量石膏硬化体は、表層（上、下層）の緻密質
石膏層の厚さがともに５ｍｍ、内部多泡質石膏層の厚さ
が５０ｍｍ、幅６００ｍｍの硬化体で、その物性値を測
定したところ、嵩比重は０．７０で曲げ強度は３５ ｋ
ｇ ／ ｃ ｍ″であった。なお、用いた補強網重量
は軽量石膏硬化体の１．１重量％である。The resulting lightweight hardened gypsum body has surface (upper and lower) dense gypsum layers with a thickness of 5 mm, an internal porous gypsum layer with a thickness of 50 mm, and a width of 600 mm. When measured, the bulk specific gravity was 0.70 and the bending strength was 35K.
g/cm''.The weight of the reinforcing net used was 1.1% by weight of the lightweight gypsum hardened body.
また、この軽量石膏硬化体の表面は硬く、平滑であり、
壁紙接着性は極めて良好であった。In addition, the surface of this lightweight gypsum cured body is hard and smooth,
Wallpaper adhesion was extremely good.
実施例２
補強網として網の目開き５ｍｍ、６３０ ｇ／ｒｎ’の
ガラスネットを用いたこと以外は、実施例１と同様にし
て軽量石膏硬化体を得た。Example 2 A lightweight hardened gypsum body was obtained in the same manner as in Example 1, except that a glass net with a mesh opening of 5 mm and a weight of 630 g/rn' was used as the reinforcing net.
この硬化体の物性値を測定したところ、嵩比重はＱ、７
０で曲げ強度は４２ ｋ ｇ ／ ｃ ｍ’であった。When the physical properties of this cured product were measured, the bulk specific gravity was Q, 7
0 and the bending strength was 42 kg/cm'.
なお、用いた補強網の重量は軽量石膏硬化体の３．０重
量％である。The weight of the reinforcing net used was 3.0% by weight of the lightweight hardened gypsum body.
また、この軽量石膏硬化体の表面は硬く、平滑であり、
壁紙接着性は極めて良好であった。In addition, the surface of this lightweight gypsum cured body is hard and smooth,
Wallpaper adhesion was extremely good.
実施例３
８０重量部の水にアニオン型界面活性剤を０．０１５重
量部及びＰＶＡをＣ１，１重量部加え、ミキサーにて６
０００ ｒ ｐｍで高速撹拌して起泡させ、これにβ−
半水石膏１００重量部とガラス繊維１．０重量部を加え
て混合し、多泡質スラリー〇を調製した。スラリーＡの
かわりにスラリーＣを用いたこと以外は実施例１と同様
にして軽量石膏硬化体を得た。この硬化体の物性値を測
定したところ、嵩比重は０．６５で曲げ強度は３３ｋｇ
／ｃｍ’であった。なお、用いた補強網重量は軽量石膏
硬化体の１．１８重量％である。Example 3 0.015 parts by weight of an anionic surfactant and 1.1 parts by weight of PVA were added to 80 parts by weight of water, and 6 parts by weight were added in a mixer.
000 rpm to create foam, and add β-
100 parts by weight of gypsum hemihydrate and 1.0 parts by weight of glass fiber were added and mixed to prepare a foamy slurry 〇. A lightweight hardened gypsum body was obtained in the same manner as in Example 1 except that Slurry C was used instead of Slurry A. When the physical properties of this cured product were measured, the bulk specific gravity was 0.65 and the bending strength was 33 kg.
/cm'. The weight of the reinforcing net used was 1.18% by weight of the lightweight hardened gypsum body.
また、この軽量石膏硬化体の表面は硬く、平滑であり、
壁紙接着性は極めて良好であった。In addition, the surface of this lightweight gypsum cured body is hard and smooth,
Wallpaper adhesion was extremely good.
実施例４
実施例１と同様の方法で、緻密質石膏層の厚さがともに
８ ｍ ｍ、内部多泡質石膏層の厚さが４４ｍｍ、幅６
００ｍｍとした硬化体を製造し、その物性値を測定した
ところ、嵩比重は０．８０で曲げ強度は３８ｋｇ／ｃｒ
ｎ’であった。なお、用しｈた補強網の重量は軽量石膏
硬化体の１．０重量％である。Example 4 Using the same method as in Example 1, the thickness of the dense gypsum layer was 8 mm, the thickness of the internal porous gypsum layer was 44 mm, and the width was 6 mm.
When a cured product with a thickness of 0.00 mm was manufactured and its physical properties were measured, the bulk specific gravity was 0.80 and the bending strength was 38 kg/cr.
It was n'. The weight of the reinforcing net used was 1.0% by weight of the lightweight hardened gypsum body.
また、この軽量石膏硬化体の表面は硬く、平滑であり、
壁紙接着性は極めて良好であった。In addition, the surface of this lightweight gypsum cured body is hard and smooth,
Wallpaper adhesion was extremely good.
以上の結果から、本発明の装置によれば、曲げ強度が著
しく高く、しかもその表面は硬く平滑な軽量石膏硬化体
を連続的に製造できることが明らかである。From the above results, it is clear that the apparatus of the present invention can continuously produce lightweight hardened gypsum bodies with extremely high bending strength and a hard and smooth surface.
［発明の効果］
以上詳述した通り、本発明の軽量石膏硬化体の製造装置
によれば、厚紙等の可燃性ないし発煙性の物質を用いる
ことな（、外表層が緻密質石膏層で、内部が多泡質石膏
層と補強網からなる軽量石膏硬化体を、優れた層間密着
性のもとに、容易かつ効率的に連続生産することができ
る。[Effects of the Invention] As detailed above, according to the apparatus for manufacturing a lightweight hardened gypsum body of the present invention, there is no need to use flammable or smoke-emitting substances such as cardboard (the outer surface layer is a dense gypsum layer, It is possible to easily and efficiently continuously produce a lightweight gypsum hardened body whose interior consists of a porous gypsum layer and a reinforcing net with excellent interlayer adhesion.
このような本発明の方法で製造される軽量石膏硬化体は
、軽量で断熱性、遮音性に優れる上に、■ 曲げ強度が
著しく高く、機械的特性に優れる。The lightweight hardened gypsum body produced by the method of the present invention is lightweight, has excellent heat insulation and sound insulation properties, and also has (1) extremely high bending strength and excellent mechanical properties.
■ 表面が硬く平滑である。■ The surface is hard and smooth.
■ このため加工性に優れると共に、塗装、壁紙仕上げ
も良好に行なうことができる。■ Therefore, it has excellent workability and can be applied well to painting and wallpaper finishing.
■ 可燃性ないし発煙性物質の被覆がないため、石膏の
耐火性能が損なわれることがない。■ Since there is no coating of flammable or smoke-producing substances, the fire resistance of the plaster is not compromised.
等の優れた特徴を有し、耐火建材として極めて有用であ
る。It has excellent characteristics such as, and is extremely useful as a fire-resistant building material.
第１図〜第５図は本発明の実施に好適な製造装置を説明
する図であって、第１図は側断面図、第２図は平面図、
第３図は第２図のｍ−ｍ線に沿う断面の拡大図、第４図
は成形へらの拡大断面図、第５図は第１図の要部拡大図
である。
１・・・ボディーベルト、
２Ａ、２Ｂ・・・サイドベルト、
３Ａ、３Ｂ・・・ベルトガイド、
４．５，６，７．８・・・供給装置、
９ （９Ａ、９Ｂ、９Ｃ）・・・成形へら、１０・・・
軽量石膏硬化体、
２１．２２・・・テンションロール。
代理人 弁理士 重 野 剛1 to 5 are diagrams illustrating a manufacturing apparatus suitable for implementing the present invention, in which FIG. 1 is a side sectional view, FIG. 2 is a plan view,
3 is an enlarged cross-sectional view taken along the line mm in FIG. 2, FIG. 4 is an enlarged sectional view of the forming spatula, and FIG. 5 is an enlarged view of the main part of FIG. 1... Body belt, 2A, 2B... Side belt, 3A, 3B... Belt guide, 4.5, 6, 7.8... Supply device, 9 (9A, 9B, 9C)...・Forming spatula, 10...
Lightweight gypsum hardened body, 21.22...Tension roll. Agent Patent Attorney Tsuyoshi Shigeno
Claims (2)
ーベルトの両側辺に垂直に配置されるサイドベルトと、
サイドベルトを保持するベルトガイドと、ボディーベル
トの上側に水平に設置された成形へらと、石膏原料スラ
リー供給装置と、補強網供給装置とを備えることを特徴
とする軽量石膏硬化体の連続製造装置。(1) A body belt installed horizontally, and side belts placed vertically on both sides of this body belt,
A continuous production device for lightweight hardened gypsum, characterized by comprising a belt guide for holding a side belt, a forming spatula installed horizontally above the body belt, a gypsum raw material slurry supply device, and a reinforcing net supply device. .
補強網を供給することを特徴とする特許請求の範囲第１
項に記載の軽量石膏硬化体の連続製造装置。(2) The reinforcing net supply device supplies the reinforcing net while applying tension to the reinforcing net.
An apparatus for continuously producing a lightweight hardened gypsum body as described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29268290A JPH04166303A (en) | 1990-10-30 | 1990-10-30 | Continuously producing device for lightweight gypsum cured object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29268290A JPH04166303A (en) | 1990-10-30 | 1990-10-30 | Continuously producing device for lightweight gypsum cured object |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04166303A true JPH04166303A (en) | 1992-06-12 |
Family
ID=17784937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29268290A Pending JPH04166303A (en) | 1990-10-30 | 1990-10-30 | Continuously producing device for lightweight gypsum cured object |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04166303A (en) |
-
1990
- 1990-10-30 JP JP29268290A patent/JPH04166303A/en active Pending
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