JPH0356538B2 - - Google Patents
Info
- Publication number
- JPH0356538B2 JPH0356538B2 JP22231183A JP22231183A JPH0356538B2 JP H0356538 B2 JPH0356538 B2 JP H0356538B2 JP 22231183 A JP22231183 A JP 22231183A JP 22231183 A JP22231183 A JP 22231183A JP H0356538 B2 JPH0356538 B2 JP H0356538B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- lined
- ceramic
- lining
- rubber ring
- 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
Links
- 239000000919 ceramic Substances 0.000 claims description 33
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 12
- 238000010276 construction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 229920006332 epoxy adhesive Polymers 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Laminated Bodies (AREA)
- Ceramic Products (AREA)
Description
【発明の詳細な説明】
本発明は、例えばスラリーや粉粒物、軟質汚泥
（ヘドロ）等の流体輸送に使用されることから短
期のうちに摩耗した管の内面をセラミツクの敷設
により復旧する又は新設管に対して予め耐摩耗処
理してあるセラミツクライニング管の構造、並び
にそのような構造のライニング管を製作するにあ
たつて管へのセラミツクライニング方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention aims to restore the inner surface of a pipe that has worn out in a short period of time because it is used for transporting fluids such as slurry, granular materials, and soft sludge (sludge) by laying ceramic material. The present invention relates to the structure of a ceramic lined pipe in which a new pipe is subjected to anti-wear treatment in advance, and a method for lining the pipe with ceramic when producing a lined pipe having such a structure.
上記の如き物質の輸送に使用する管の内面ライ
ニング材としてセラミツクは非常に有効であり、
従来からも実用化されている。然して、従来のセ
ラミツクライニング管の構造はセラミツクプレー
トが個々に、又は可搬できる大きさ単位にシート
張りされたものが被ライニング管の内面に接着剤
を介して直付けされたものであつたが、この場合
は接着力にばらつきを生じ易くて流体輸送時にプ
レートの剥落を招来し易く、一旦、局部的であれ
剥落箇所が発生するとその箇所から隣りのセラミ
ツクプレートの接着界面に流体エネルギーが作用
して次々と剥落し、しかも、敷設にあたつては多
大な手間を要し施工能率が悪いとともに、施工費
が高くつく。特に被ライニング管が中小径で作業
者が内部に入れないとか、長尺であるような場合
は作業性が一層悪いのはもとより、ライニング可
能範囲が作業者の手が届く範囲に制約されてこの
種のライニング対象管が寸法的に制限されるとい
つた欠点があつた。加えて、個々のセラミツクプ
レート間やプレートシート間の継目箇所に不当な
隙間ができ、既述の剥落現象に拍車をかけるとい
つた欠点があつた。 Ceramic is very effective as an inner lining material for pipes used to transport the above substances.
It has been put into practical use for some time. However, the structure of conventional ceramic lined pipes is that ceramic plates are individually or sheet-covered in units of a transportable size and are directly attached to the inner surface of the pipe to be lined with an adhesive. In this case, the adhesive strength tends to vary and the plate tends to peel off during fluid transport, and once a peeling point occurs, even if it is localized, fluid energy acts from that point on the adhesion interface of the adjacent ceramic plate. Moreover, it takes a lot of effort to install, resulting in poor construction efficiency and high construction costs. In particular, if the pipe to be lined has a small or medium diameter that the worker cannot enter inside, or if it is long, the workability is worse, and the range that can be lined is limited to the range that the worker can reach. The drawback was that the size of the pipe to be lined was limited. In addition, there was a drawback in that unreasonable gaps were formed between individual ceramic plates or at joints between plate sheets, which accelerated the above-mentioned flaking phenomenon.
本発明はかかる実情に鑑みたものであつて、本
第１発明の目的は、被ライニング管の寸法大小に
拘わらずその内周面にセラミツクプレートを確実
に敷設できるセラミツクライニング管の構造を提
供する点にあり、本第２発明の目的は上記構造の
ライニング管を合理的能率的に得ることができる
セラミツクライニング方法を提案する点にある。 The present invention has been made in view of the above circumstances, and the object of the first invention is to provide a structure of a ceramic lined pipe in which a ceramic plate can be reliably laid on the inner peripheral surface of the pipe to be lined, regardless of the size of the pipe to be lined. Therefore, an object of the second invention is to propose a ceramic lining method that can reasonably and efficiently obtain a lined pipe having the above structure.
上記の目的を達成するために本第１発明に係る
セラミツクライニング管の構造は被ライニング管
の内径と略等しい又は内径よりもやや大きい外径
を有する弾性ゴムリングの内周面に少なくとも周
方向に複数個のセラミツクプレートが固着された
ライニングブロツクの複数個を、前記被ライニン
グ管の内面全域に亘つて、各ライニングブロツク
の前記ゴムリング外周面が前記被ライニング管の
内周面に嵌着される状態でかつ各ライニングブロ
ツクの管軸方向での対向周縁同士が密接する状態
で敷設してあるという構成に特徴を有するもので
ある。 In order to achieve the above object, the structure of the ceramic lined pipe according to the first aspect of the present invention is such that the inner circumferential surface of an elastic rubber ring having an outer diameter approximately equal to or slightly larger than the inner diameter of the pipe to be lined is provided at least in the circumferential direction. A plurality of lining blocks to which a plurality of ceramic plates are fixed are fitted over the entire inner surface of the pipe to be lined, so that the outer peripheral surface of the rubber ring of each lining block is fitted to the inner peripheral surface of the pipe to be lined. This structure is characterized by the fact that the lining blocks are laid in such a way that the opposing peripheral edges in the tube axis direction are in close contact with each other.
また、本第２発明に係る管へのセラミツクライ
ニング方法は被ライニング管の内径と略等しい又
は内径よりもやや大きい外径を有する弾性ゴムリ
ングの内周面に少なくとも同方向に複数個のセラ
ミツクプレートが固着されたライニングブロツク
を、前記被ライニング管の軸線方向一端外方に同
芯状に保持させ、このライニングブロツクを被ラ
イニング管内に押込むことを特徴とするものであ
る。 Further, the method for lining a pipe with ceramic according to the second aspect of the present invention includes a method of lining a pipe with ceramics by attaching a plurality of ceramic plates in at least the same direction to the inner peripheral surface of an elastic rubber ring having an outer diameter approximately equal to or slightly larger than the inner diameter of the pipe to be lined. A lining block to which is fixed is held concentrically outside one end in the axial direction of the pipe to be lined, and this lining block is pushed into the pipe to be lined.
以下本発明の一実施例を図面に基づいて詳述す
る。 An embodiment of the present invention will be described below in detail with reference to the drawings.
第１図において１は、スラリーや粉粒物の輸送
に供せられる被ライニング管で内径D1が50mm〜
400mmであり、管軸線方向の両端には接続用フラ
ンジ１Ａ，１Ａが設けられている。４は、前記被
ライニング管１内の全長に亘つて管軸方向での対
向周縁同士が密接する状態で敷設された１つの長
さが例えば500mm程度の複数個のライニングブロ
ツクであり、これらライニングブロツク４は次の
ように構成されている。 In Fig. 1, 1 is a lined pipe used for transporting slurry and powdery materials, and the inner diameter D 1 is 50 mm to 50 mm.
The length is 400 mm, and connecting flanges 1A, 1A are provided at both ends in the tube axis direction. Reference numeral 4 denotes a plurality of lining blocks each having a length of, for example, about 500 mm, which are laid over the entire length of the pipe to be lined 1 so that opposing peripheral edges in the pipe axis direction are in close contact with each other. 4 is configured as follows.
第２図乃至第４図で明示の如く前記被ライニン
グ管１の内径D1と等しいか、又はそれよりもや
や大きい外径D2を有するとともに、その外周面
には周方向に大略５mmピツチで深さ４mm位の多数
条の管軸線方向に沿つた溝２Ａを成形した６mm程
度の厚さの加硫ゴムリング２の全内周面に、周方
向並びに管軸線方向に複数個のセラミツク
（Al2O3）プレート３（例えば15mm幅×50mm長さ
×３mm厚）が互いに密接し焼付け接着手段にて、
ブロツク筒軸線方向の両周縁部に管軸線方向で相
隣るブロツク４との嵌合接続用凹部４Ａ及び凸部
４Ｂを各々形成する状態に固着して構成されてい
る。 As clearly shown in FIGS. 2 to 4, it has an outer diameter D 2 that is equal to or slightly larger than the inner diameter D 1 of the pipe to be lined 1 , and the outer circumferential surface has a diameter of approximately 5 mm in the circumferential direction. A plurality of ceramic (Al 2 O 3 ) Plates 3 (for example, 15 mm width x 50 mm length x 3 mm thickness) are brought into close contact with each other by baking adhesive means,
The block is fixedly attached to both circumferential edges in the axial direction of the block so as to form recesses 4A and protrusions 4B for fitting and connection with blocks 4 adjacent to each other in the axial direction of the tube.
そして、第１図の敷設状態において各ライニン
グブロツク４における前記ゴムリング２の外周面
が前記被ライニング管１の内周面に嵌着され、接
着剤を介して接着固定されている。 In the installed state shown in FIG. 1, the outer circumferential surface of the rubber ring 2 in each lining block 4 is fitted onto the inner circumferential surface of the pipe to be lined 1, and fixed thereto using an adhesive.
次に、上記第１図のような構成のセラミツクラ
イニング管の施工方法を説明すると、前記被ライ
ニング管１の軸線長Ｌに相当する数のライニング
ブロツク４を、第５図で示すように前記被ライニ
ング管１の軸芯方向一端外方にこの被ライニング
管１と同芯状に固定設置した案内筒５に外嵌させ
ることで複数個のライニングブロツク４を被ライ
ニング管１と同芯状に整列保持させる。次にその
整列保持された複数個のライニングブロツク４群
の外周面、即ち、ゴムリング２群の全外周面及び
被ライニング管１の全内周面に夫々エポキシ系接
着剤を塗布したのち、それら接着剤が硬化するま
でに前記の整列ライニングブロツク４群を、前記
案内筒５外周にそれと同芯状態に設けた油圧シリ
ンダ利用の押込機６を介して前記被ライニング管
１内に一括的に押込んで、ライニングブロツク４
群を被ライニング管１の内面全域に亘つて固着敷
設したものであつて、前記ゴムリング２の外周面
に形成された溝２Ａはライニングブロツク４の押
込時におけるライニングブロツク４の外径と被ラ
イニング管１の内径との誤差を、溝２Ａ間のゴム
リング部分２Ｂの弾性圧縮及び溝２Ａ内への弾性
変形回避により吸収する役割りを果たすもので、
この溝２Ａは第６図で示すような周溝であつて
も、第７図で示すような格子状の溝であつても、
更にはやゝ軟質のゴム材を用いて溝なしであつて
も良い。 Next, a method of constructing a ceramic lined pipe having the structure as shown in FIG. A plurality of lining blocks 4 are aligned concentrically with the pipe to be lined 1 by fitting them into a guide tube 5 which is fixed and installed concentrically with the pipe to be lined 1 on the outside of one end in the axial direction of the lined pipe 1. let it hold. Next, after applying an epoxy adhesive to the outer circumferential surfaces of the four groups of lining blocks held in alignment, that is, the entire outer circumferential surface of the two groups of rubber rings and the entire inner circumferential surface of the pipe to be lined 1, Before the adhesive hardens, the four groups of aligned lining blocks are pushed into the pipe to be lined 1 at once through a pushing machine 6 using a hydraulic cylinder, which is installed on the outer periphery of the guide tube 5 and concentric therewith. So, lining block 4
The groove 2A formed on the outer circumferential surface of the rubber ring 2 corresponds to the outer diameter of the lining block 4 when the lining block 4 is pushed in and the lined pipe. It serves to absorb errors with the inner diameter of the tube 1 by elastically compressing the rubber ring portion 2B between the grooves 2A and avoiding elastic deformation into the grooves 2A.
Whether this groove 2A is a circumferential groove as shown in FIG. 6 or a lattice-shaped groove as shown in FIG.
Furthermore, a soft rubber material may be used without grooves.
尚、対象とする被ライニング管は既設管であつ
ても新設管であつても良く、また接着剤はライニ
ングブロツク４群の外周面にのみ又は被ライニン
グ管１の内周面にのみ塗布しても良く、何れにし
ても接着剤がライニングブロツク４群の管内押込
時の潤滑剤の働きをしてスムーズな押込みが可能
となる。 The target pipe to be lined may be an existing pipe or a newly installed pipe, and the adhesive may be applied only to the outer peripheral surface of the 4 groups of lining blocks or only to the inner peripheral surface of the pipe to be lined 1. In either case, the adhesive acts as a lubricant when the four groups of lining blocks are pushed into the pipe, allowing smooth pushing.
なお、上記実施例では被ライニング管１の軸線
長Ｌに相当する数のライニングブロツク４を一括
的に押込む場合を例示したが、１個づつあるいは
複数個づつ逐次に押込んでもよく、また接着剤と
してエポキシ系接着剤を例示したが他の接着剤を
選択してもよく、さらに接着剤を用いなくても良
い場合もあり、また接着剤に変えてスムーズな押
込みを可能ならしめるために潤滑剤を用いてもよ
い。 In addition, in the above embodiment, the case where the number of lining blocks 4 corresponding to the axial length L of the pipe to be lined 1 is pushed in all at once is illustrated, but it is also possible to push them in one by one or a plurality of blocks one after another. Although epoxy adhesive is used as an example of the adhesive, other adhesives may be selected, and there are cases where it is not necessary to use an adhesive.Also, in place of adhesive, lubrication may be used to enable smooth pressing. Agents may also be used.
以上要するに本第１発明による時は、管内面に
耐摩耗性に優れたセラミツクライニング層を構成
するに、弾性ゴムリングの内周面に複数個のセラ
ミツクプレートが固着されたライニングブロツク
を使用し、このブロツクのゴムリング外周面を被
ライニング管の内周面に嵌着することで所期のセ
ラミツクライニング層を構成するものであるか
ら、従来のようにセラミツクプレートを一枚づ
つ、又は、複数枚を一単位としたシートを直付け
する場合に比べて、セラミツクプレートを一様又
はほぼ一様な接着力のもとで、流体の輸送使用時
における不測の剥落を招かないように確実強力な
接着状態に敷設することができるとともに、手間
が少なくて襲施工能率の顕著な向上、及び施工コ
ストの著しい低減を達成することができる。しか
も、中小径管で作業者が内部に入れないとか、非
常に長尺な管であつても前記ライニングブロツク
の押込み手段でライニング施工が可能であり、従
つて、被ライニング管の寸法的制限がなく、いか
なる径及び軸芯長の管にも耐摩耗性に勝れたセラ
ツツクライニングを容易に施工できるといつた効
果を奏するに至つた。 In summary, according to the first invention, a lining block in which a plurality of ceramic plates are fixed to the inner peripheral surface of an elastic rubber ring is used to construct a ceramic lining layer with excellent wear resistance on the inner surface of the tube, The desired ceramic lining layer is constructed by fitting the outer circumferential surface of the rubber ring of this block onto the inner circumferential surface of the pipe to be lined, so it is possible to construct the ceramic lining layer one by one or in multiple pieces as in the past. Compared to the case of directly attaching a sheet made up of a single unit, the ceramic plate has a uniform or almost uniform adhesive force, ensuring strong adhesion to prevent accidental peeling when used for transporting fluids. In addition to being able to lay it in a suitable condition, with less effort, it is possible to significantly improve construction efficiency and significantly reduce construction costs. Moreover, it is possible to line even small and medium-diameter pipes that workers cannot enter inside, or extremely long pipes, by using the pushing means of the lining block, and therefore there are no dimensional restrictions on the pipe to be lined. The invention has achieved the effect that Cerac lining with excellent wear resistance can be easily applied to pipes of any diameter and axial length.
また、本第２発明による時は、被ライニング管
の軸線方向一端外方に同芯状にライニングブロツ
クを保持させ、このライニングブロツクを被ライ
ニング管内に押込むものであるから、上記本第１
発明でいう所のセラミツクライニング管を極めて
能率的に得ることができるとともに、傷みのない
かつ内面が平滑なセラミツクライニング層を確実
容易に施工形成できる効果を有するに至つた。 Further, according to the second invention, a lining block is held concentrically outside one end in the axial direction of the pipe to be lined, and this lining block is pushed into the pipe to be lined, so this is different from the first invention.
The ceramic lined pipe referred to in the invention can be obtained extremely efficiently, and a ceramic lined layer with no damage and a smooth inner surface can be reliably and easily formed.
図面は本発明の実施例を示し、第１図はセラミ
ツクライニング管の縦断側面図、第２図はライニ
ングブロツクの正面図、第３図は第２図−線
での中間省略縦断側面図、第４図はライニングブ
ロツクの要部の斜視図、第５図はライニングブロ
ツク群の押込み直前の状態を示す一部切欠き側面
図、第６図、第７図は夫々別の実施例を示すライ
ニングブロツクの要部の斜視図である。
１は被ライニング管、２は弾性ゴムリング、３
はセラミツクプレート、４はライニングブロツ
ク、２Ａは溝、４Ａは嵌合接続用凹部、４Ｂは嵌
合接続用凸部である。
The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal side view of a ceramic lined pipe, FIG. 2 is a front view of a lining block, FIG. Fig. 4 is a perspective view of the main part of the lining block, Fig. 5 is a partially cutaway side view showing the state of the lining block group just before it is pushed in, and Figs. 6 and 7 are lining blocks showing different embodiments. FIG. 1 is a pipe to be lined, 2 is an elastic rubber ring, 3
4 is a ceramic plate, 4 is a lining block, 2A is a groove, 4A is a recessed portion for fitting connection, and 4B is a convex portion for fitting connection.
Claims (1)
内径D1よりもやや大きい外径D2を有する弾性ゴ
ムリング２の内周面に少なくとも周方向に複数個
のセラミツクプレート３が固着されたライニング
ブロツク４の複数個を、前記被ライニング管１の
内面全域に亘つて、各ライニングブロツク４の前
記ゴムリング２外周面が前記被ライニング管１の
内周面に嵌着される状態でかつ各ライニングブロ
ツク４の管軸線方向での対向周縁同士が密接する
状態で敷設してあることを特徴とするセラミツク
ライニング管の構造。 ２ 前記ライニングブロツク４の弾性ゴムリング
２が、その外周面に多数条の溝２Ａを有するもの
である特許請求の範囲第１項に記載のセラミツク
ライニング管の構造。 ３ 前記ライニングブロツク４がその筒軸線方向
の両端周縁部に管軸線方向で相隣るブロツク４と
の嵌合接続用凹部４Ａ及び凸部４Ｂとを有するも
のである特許請求の範囲第１項に記載のセラミツ
クライニング管の構造。 ４ 被ライニング管１の内径D1と略等しい又は
内径D1よりやや大きい外径D2を有する弾性ゴム
リング２の内周面に少なくとも周方向に複数個の
セラミツクプレート３が固着されたライニングブ
ロツク４を、前記被ライニング管１の軸線方向一
端外方に同芯状に保持させ、このライニングブロ
ツク４を被ライニング管１内に押込むことを特徴
とする管へのセラミツクライニング方法。 ５ 前記ライニングブロツク４の弾性ゴムリング
２がその外周面に多数条の溝２Ａを有するもので
ある特許請求の範囲第４項に記載の管へのセラミ
ツクライニング方法。 ６ 前記多数条の溝２Ａが管軸線方向に沿つた溝
である特許請求の範囲第５項に記載の管へのセラ
ミツクライニング方法。[Claims] 1. A plurality of ceramic plates at least in the circumferential direction on the inner circumferential surface of the elastic rubber ring 2 having an outer diameter D2 substantially equal to or slightly larger than the inner diameter D1 of the pipe to be lined 1 . 3 to which the rubber ring 2 of each lining block 4 is fitted over the entire inner surface of the pipe to be lined 1. A structure of a ceramic lined pipe characterized in that each lining block 4 is laid in such a state that its opposing peripheral edges in the pipe axis direction are in close contact with each other. 2. The structure of the ceramic lined pipe according to claim 1, wherein the elastic rubber ring 2 of the lining block 4 has a plurality of grooves 2A on its outer peripheral surface. 3. According to claim 1, the lining block 4 has a concave portion 4A and a convex portion 4B for fitting connection with the blocks 4 adjacent to each other in the tube axis direction at the peripheral edges of both ends thereof in the tube axis direction. The structure of the ceramic lined tube described. 4. A lining block in which a plurality of ceramic plates 3 are fixed at least in the circumferential direction to the inner circumferential surface of an elastic rubber ring 2 having an outer diameter D2 substantially equal to or slightly larger than the inner diameter D1 of the pipe to be lined 1. 4 is held concentrically outside one end in the axial direction of the pipe to be lined 1, and this lining block 4 is pushed into the pipe to be lined 1. 5. The method of lining a pipe with ceramic according to claim 4, wherein the elastic rubber ring 2 of the lining block 4 has multiple grooves 2A on its outer peripheral surface. 6. The ceramic lining method for a tube according to claim 5, wherein the multiple grooves 2A are grooves along the tube axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22231183A JPS60115431A (en) | 1983-11-26 | 1983-11-26 | Structure of ceramic lining pipe and ceramic lining method to pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22231183A JPS60115431A (en) | 1983-11-26 | 1983-11-26 | Structure of ceramic lining pipe and ceramic lining method to pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60115431A JPS60115431A (en) | 1985-06-21 |
| JPH0356538B2 true JPH0356538B2 (en) | 1991-08-28 |
Family
ID=16780369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22231183A Granted JPS60115431A (en) | 1983-11-26 | 1983-11-26 | Structure of ceramic lining pipe and ceramic lining method to pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60115431A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8608805D0 (en) * | 1986-04-11 | 1986-05-14 | Du Pont Uk | Thermoplastic polymer-lined pipe |
-
1983
- 1983-11-26 JP JP22231183A patent/JPS60115431A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60115431A (en) | 1985-06-21 |
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