JPH09152087A - Lining material made of ceramics and lining method of transport pipe using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily execute lining of the inner circumferential face of a straight pipe or a curved pipe forming a transport pipe by connecting together a plurality of connectors made of ceramics so that the respective ball parts are fitted in the ball storing parts capably of being oscillated. SOLUTION: Lining material 10 made of ceramics is inserted into a curved pipe 12a. Hereat, the respective connectors 11 made of ceramics of the lining material 10 made of ceramics are connected to the other adjoining connectors 11 made of ceramics capably of being oscillated, and hence they are easily inserted into the curved pipe 12 along the bending. Presser metal fittings 12g are respectively fitted to both end parts of the curved pipe 12a. Next, a gap 12i is filled with hardening material 13 such as cement paste or cement mortar from the injection port 12b of the curvea pipe 12a. Finally, after blockading the injection port 12b with a blockading member 12d, the hardening material 13 is cured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic lining material and a transportation pipe lining method using the same.

[0002]

2. Description of the Related Art Conventionally, so-called pneumatic transportation, in which a material to be transported such as coke or coarse aggregate is sent by air, has been widely used in steelworks, cement factories and the like. In this pneumatic transportation, a metal pipe such as a steel pipe or a cast iron pipe, a concrete pipe, or the like is usually used as the transport pipe, but since the transported material is a hard material, it has wear resistance. There was a problem that it was inferior. In particular, a curved pipe that constitutes a bent portion (or a curved portion) of a transportation pipe has a greater wear on its inner peripheral surface than a straight pipe that constitutes a straight portion of the transportation pipe. Even if it increased, there was still a problem that the life was short.

To solve this problem, Japanese Utility Model Laid-Open No. 62-45491 discloses a ceramic lining material for lining the inner peripheral surface of a transport pipe and a transport pipe using the same. Lining methods have been proposed. Here, a lining material according to a conventional embodiment and a method for lining a transport pipe using the same will be described with reference to the drawings. 14A is an explanatory view of a lining material according to a conventional embodiment, FIG. 14B is an explanatory view of another lining material according to a conventional embodiment, and FIG.
(C) is an explanatory view of still another lining material according to the conventional embodiment, FIG. 15 is an explanatory view of a manufacturing state of the lining material according to the conventional embodiment, and FIG. 16 is a lining according to the conventional embodiment. FIG. 17 is an explanatory view of a lining state of a straight pipe to which a transportation pipe lining method using a material is applied. FIG. 17 shows another lining material according to a conventional embodiment or another lining material according to a conventional embodiment. It is explanatory drawing of the lining state of the curved pipe which applied the lining method of the existing transport pipe.

First, a method of manufacturing a lining material and a method of lining a transportation pipe according to the conventional embodiment will be described. As shown in FIG. 14A, the lining material 50a formed in a cylindrical shape elongated in one direction is first shown in FIG.
As shown in FIG. 16, a ceramic straight pipe (hereinafter referred to as a lining pipe) 50 having an outer diameter smaller than the inner diameter of the straight pipe 51a and elongated in one direction.
After creating the lining pipe 50, the straight pipe 51a
It is manufactured by cutting with a diamond cutter (not shown) or the like along the cutting line indicated by the one-dot chain line in FIG. 15 in accordance with the length in the central axis direction (hereinafter referred to as the axial length). . Then, the lining material 50a obtained by the above-described manufacturing method is first prepared by the adhesive 53 on the entire inner peripheral surface of the straight pipe 51a.
Straight pipe 51a to which this adhesive 53 is applied after applying
By inserting the lining material 50a therein, the straight pipe 51
The inner peripheral surface of a is lined.

Next, a method of manufacturing another lining material according to the conventional embodiment, a method of manufacturing another lining material according to the conventional embodiment, and a lining method of a transport pipe will be described. As shown in FIGS. 14B and 14C, the lining materials 52 and 5 formed in a short cylindrical shape or a substantially arcuate cross section.
As for 2a, first, in the same manner as described above, as shown in FIGS. 15 and 17, after the ceramic lining pipe 50 is created, the lining pipe 50 is curved (or radius of curvature) of the curved pipe 51b. In accordance with the above, it is manufactured by cutting with a diamond cutter (not shown) along a cutting line shown by a broken line in FIG. Then, the lining materials 52 and 52a obtained by the above-described manufacturing method are sequentially arranged on the inner peripheral surface of the curved pipe 51b in the same manner as described above.
2 is attached with an adhesive 53 and is lined on the inner peripheral surface of the curved pipe 51b.

[0006]

However, the lining materials 50a, 52, 52 according to the above-mentioned conventional embodiment are not provided.
In a, the lining materials 50a, 52, 52a are matched with the axial length of the straight pipe 51a, the radius of curvature of the curved pipe 51b, and the like,
Since it has to be formed with different shapes, it takes time and labor, and there is a problem that workability, productivity and mass productivity are poor.

In particular, the lining materials 52, 52a depend on the radius of curvature of the curved pipe 51b.
Since the width and the like of 2a must be appropriately changed and created, there is a problem in that extremely labor and labor are required.
Further, the lining pipe 50 is cut to cut the lining material 50.
When producing a, 52, and 52a, there is a problem that so-called waste material is generated.

Further, when the inner peripheral surface of the straight pipe 51a is lined by applying the lining method of the transport pipe using the lining material 50a according to the conventional embodiment, the straight pipe 5 is used.
As the length of 1a becomes longer, the adhesive effect of the adhesive 53 increases, and it becomes difficult to insert the lining material 50a into the straight pipe 51a, resulting in a problem of poor workability.

Further, when the inner peripheral surface of the curved pipe 51b is lined by applying the lining method of the transport pipe using the above-mentioned lining materials 52, 52a, the lining materials 52, 52a are formed on the inner peripheral surface of the curved pipe 51b. Since one piece (or one piece) has to be attached manually, there is a problem that labor and labor are required and workability is poor. Further, in FIG. 17, when the length of the curved pipe 51b indicated by L becomes long, the curved pipe 51b needs to be divided because it is difficult to reach the inner part. Therefore, there is a problem that productivity and mass productivity are poor. there were.

Further, since the lining materials 52 and 52a are gropingly attached to the inner peripheral surface of the curved tube 51b, originally,
It is difficult to adhere the end surfaces of the adjacent lining materials 52 and 52a to each other, and for example, the inner peripheral surface (or the background) of the curved pipe 51b or the adhesive 53 may be provided between the adjacent lining materials 52. There is a problem that it is exposed and attached, or the adjacent lining materials 52 are overlapped and attached.

For this reason, if the curved surface of the curved pipe 51b or the adhesive 53 is exposed and attached, there is a problem in that the abrasion resistance and durability of the exposed portion are deteriorated. On the other hand, if the lining materials 52 and 52a are overlapped and pasted together, the material to be transported hits the lining materials 52 and 52a on the upper side, and the lining materials 52 and 52a are easily peeled off. In addition, there is a problem that abrasion resistance and durability are reduced. Furthermore, lining material 5
When 2, 52a are peeled off and blown off, the other lining materials 52, 52a are damaged, and there is a problem that abrasion resistance and durability are reduced in the same manner as described above.

Further, in pneumatic transportation, the material to be transported is the curved pipe 51.
Since the lining materials 50a, 52, 52a lined on the straight pipes or the curved pipes of the transportation pipe are easily peeled off due to the fact that the transportation pipe is likely to vibrate due to collision with the inner peripheral surface of b, Similarly, there is a problem that abrasion resistance and durability are reduced. Further, since friction heat is easily generated in the curved pipe 51b due to the collision and vibration of the transported material described above, the curved pipe 51b is
Becomes hot and the adhesive 53 melts and the lining material 5
There is a problem that the 2, 52a is easily peeled off. Therefore, there is a problem that the conventional bent tube 51b can be used only up to about 200 ° C.

The present invention has been made in view of such circumstances, and it is possible to easily line the inner peripheral surface of a straight pipe or a curved pipe that constitutes a transportation pipe, Even if it is lined on the peripheral surface, peeling etc. can be prevented. Furthermore, it can be used even at high temperature by lining on the inner peripheral surface of straight pipes and curved pipes Workability, productivity, mass productivity, reliability An object of the present invention is to provide a ceramic lining material having excellent properties and a method for lining a transportation pipe using the lining material.

[0014]

According to the present invention, there is provided a semiconductor device comprising:
The ceramic lining material described has a plurality of ceramic connectors each having a ball portion having a through hole for flowing a fluid in the center and a ball storage portion integrally connected to the ball portion. The ball portion is fitted into the ball storage portion so as to be swingable and connected.

According to a second aspect of the present invention, there is provided a ceramic lining material according to the first aspect, wherein the ball accommodating portion is provided with a half cutout portion having a predetermined width at a portion having the maximum diameter. After accommodating the ball portion of another ceramic connector in the ball accommodating portion, a separately prepared partial cover for joining the half cutout portion is joined.

According to a third aspect of the present invention, in the ceramic lining material, a hooking projection is radially formed on the outer peripheral surface, and a bulging ring portion is formed at one end, and a tubular portion, and A plurality of ceramic connectors each having a skirt portion integrally connected to the other end in a radially expanded manner are fitted into the skirt portion so that the respective bulging ring portions can be swung, and An elastic string is hooked on the hooking protrusions of the mating ceramic connectors to connect them.

According to a fourth aspect of the present invention, in the ceramic lining material, locking projections are radially formed on the outer peripheral surface, a bulging ring portion is formed on one end, and the one end extends from the one end to the other end. A plurality of ceramic connectors made of a tubular body formed to have an expanded diameter are fitted into the other end portion of the respective bulging ring portions so as to be swingable, and
An elastic string is hooked on the hooking protrusions of the adjacent ceramic connectors to connect them.

According to a fifth aspect of the present invention, in a ceramic lining material, a cylindrical portion having a substantially spherical inside and a large diameter portion on one side and a small diameter portion on the other side is integrally formed inside the large diameter portion. Moreover, an inner bulge portion having inner cutouts formed at a predetermined pitch and an outer bulge portion which is integrally formed on the outer side of the small diameter portion and protrudes by narrowing its outer surface from the inner surface of the inner cutout, respectively. A plurality of ceramic connectors provided are connected in a state in which the outer bulging portion and the inner bulging portion are hooked so as to be swingable.

According to a sixth aspect of the present invention, there is provided a method for lining a transportation pipe using the ceramic lining material, which comprises: inserting the ceramic lining material according to any one of the first to fifth aspects into a transportation pipe to be lined. A hardening material is injected from an injection port provided in a part of the transport pipe.

Here, as the ceramics used for the ceramic connector constituting the ceramic lining material of the present invention, aluminum oxide (alumina: Al) is used.
₂ O ₃ ), aluminum nitride (AlN), zirconium oxide (zirconia: ZrO ₂ ), silicon nitride (Si
₃ N ₄ ), silicon carbide (SiC), silicon dioxide (silica:
SiO ₂ ) or a mixture thereof can be used. When a mixture of two or more of the above-mentioned ceramics is used, the compounding ratio is not particularly specified and may be appropriately compounded.

As a method of manufacturing the ceramic connector, the above-mentioned fine powder of ceramics (which may be mixed with various binders if necessary) is cold-processed by a wet bag method using water or oil. It is possible to use a method of applying a hydrostatic pressure method (CIP) to form a predetermined shape and then sintering. By applying this cold hydrostatic pressure method to manufacture, it is possible to make the density of the fine powder in the manufactured ceramic connector substantially uniform, and to increase the mechanical strength of the ceramic connector. At the same time, the waste material generated during the production of the conventional wear resistant material can be reduced as much as possible, and the yield can be improved.

Further, as the elastic string for connecting the ceramic connector, if the connected ceramic connector can be held in a loosely fitted state (in other words, if the ceramic lining material has flexibility). ) Not specified. Specifically, natural rubber,
Or styrene-butadiene rubber (SBR), nitrile-
Butadiene rubber (NBR), butadiene rubber (BR),
A line member made of synthetic rubber such as isoprene rubber, chloroprene rubber (CR), silicone rubber or urethane rubber can be used.

In the method for lining a transport pipe using the ceramic lining material of the present invention, cement and water are used as the hardening material filled in the gap between the transport pipe and the ceramic lining material inserted into the transport pipe. Kneaded in a paste form, so-called cement paste, cement, cement, fine aggregate and water mixed in a paste form, a cement adhesive such as so-called cement mortar, or a foamed resin such as urethane foam or polystyrene foam, A mixture of fine powder of ceramics and an adhesive such as an acrylic resin adhesive or an epoxy resin adhesive can be used. The cement is not particularly specified, and Portland cement and blast furnace cement,
Various materials such as fly ash cement and silica cement can be used.

The method for lining a transport pipe using the ceramic lining material of the present invention can be used for various things such as a straight pipe forming a straight portion of a transport pipe and a curved pipe forming a curved portion. You can The material of the transportation pipe is not particularly limited, and examples thereof include steel pipes such as stainless steel pipes and high carbon steel pipes, cast iron pipes, copper pipes, lead pipes, metal pipes such as aluminum pipes, and natural rubber or synthetic rubber. Rubber tube,
Various materials such as synthetic resin pipes such as vinyl chloride pipes and non-metal pipes such as concrete pipes can be used.

Further, the size (or diameter) of the injection port formed in the transport pipe is not particularly limited as long as the gap can be filled with the hardening material. Further, the number of the injection ports formed is not particularly limited, but the larger the number of the injection ports formed, the more the hardening material can be filled in the gap in a short time, and the workability can be improved. It is preferable because it is possible. Further, it is preferable to provide a closing member such as a blind plug at the inlet because it is possible to prevent the hardening material filled in the gap from flowing out through the inlet.

Further, the transportation pipe having the ceramic lining material of the present invention lined on the inner peripheral surface is used as flux, sludge, coke, pulverized coal, ore, slag, cement, aggregate, abrasive, ceramics, slurry, sandblast. It can be used for pneumatic transportation of materials to be transported such as cutting powder, wheat, soybean, corn, and glass fiber-containing pellets.

[0027]

In the ceramic lining material according to any one of claims 1 to 5, since the ceramic lining material is made of ceramic, it is possible to improve wear resistance and durability against a material to be transported made of a hard material such as coke or coarse aggregate. be able to. In addition, since the ceramic lining material has flexibility or flexibility by being configured by connecting a plurality of ceramic connectors, it can be easily installed inside the transport pipe without depending on the straight pipe or the curved pipe. The peripheral surface can be lined. Further, the number of ceramic connectors forming the ceramic lining material can be easily adjusted, and can be easily adjusted to the length of the straight pipe or the curved pipe.

Particularly, in the ceramic lining material according to the first aspect, since each ceramic connector forming the ceramic lining material has a ball portion and a ball accommodating portion, for example, one ceramic connector is By inserting the ball portion of another ceramic connector into the ball storage portion, the respective ceramic connectors can be pivotally connected to each other. Therefore, as described above, excellent flexibility or flexibility can be imparted to the ceramic lining material.

Particularly, in the ceramic lining material according to the second aspect, the ceramic connector is connected by forming the half-divided cutout portion having a predetermined width at the maximum diameter portion of the ball storage portion. In doing so, the ball portion of another ceramic connector can be easily fitted into the ball storage portion of one ceramic connector. In addition, by joining the partial covers that cover the half cutouts, it is possible to ensure that one ceramic connector does not fall off from the other ceramic connector when the ceramic connectors are connected. Can be prevented. Therefore, when the ceramic lining material is lined on the transportation pipe, it is possible to reliably prevent the ceramic lining material from peeling off from the inner peripheral surface of the transportation pipe.

Particularly, in the ceramic lining material according to the third aspect, since each ceramic connector forming the ceramic lining material has a tubular portion and a skirt portion, each ceramic connector is similar to the above. They can be connected to each other so that they can be swung, and therefore, as described above, excellent flexibility or flexibility can be imparted to the ceramic lining material.

Further, since the hooking protrusions are formed on the outer peripheral surface of the cylindrical portion, the elastic cords can be easily hooked on the hooking protrusions of the adjacent ceramic connector, and the elastic cords can be hooked. As a result, it is possible to reliably prevent the adjacent ceramic connectors from being separated from each other. Further, since the bulging ring portion is formed at one end of the tubular portion, it is possible to reduce the contact area of the skirt portion with the inner peripheral surface, which reduces the frictional resistance between the tubular portion and the skirt portion. It can be reduced and the skirt part can be swung smoothly.

In the ceramic lining material according to the present invention, each ceramic connector constituting the ceramic lining material is a cylindrical body formed to have an expanded diameter from one end to the other end. Therefore, the respective ceramic connectors can be pivotally connected to each other, and therefore, similar to the above, excellent flexibility or flexibility can be imparted to the ceramic lining material. Further, since the hooking protrusion is formed on the outer peripheral surface of the tubular body, it is possible to prevent the adjacent ceramic connectors from being separated from each other, as well as at the one end of the tubular body. Since the bulging ring portion is formed, the head can be swung smoothly similarly to the above.

In particular, in the ceramic lining material according to the fifth aspect, each ceramic connector forming the ceramic lining material is formed of a tubular portion having a large diameter portion on one side and a small diameter portion on the other side. Therefore, the ceramic connectors can be pivotally connected to each other, and thus the ceramic lining material can have excellent flexibility or flexibility as described above.

Further, an inner cutout is formed in the inner bulge portion of the large diameter portion of the ceramic connector, and an outer bulge portion is formed in the small diameter portion having an outer surface narrower than the inner surface of the inner cutout. Therefore, in the same manner as described above, when connecting the ceramic connectors, the inner notch of the one ceramic connector and the outer bulge of the other ceramic connector are easily fitted together. In addition to being able to connect, it is possible to ensure that one of the ceramic connectors is removed from the other ceramic connector simply by rotating one of the ceramic connectors by a predetermined angle from the fitted state. Can be prevented.

In the method for lining a transport pipe using the ceramic lining material according to the sixth aspect, the ceramic lining material having flexibility or flexibility can be easily inserted into the transport pipe and the ceramic By lining the manufactured lining material, it is possible to improve wear resistance to the transported material. Further, after inserting the ceramic lining material into the transportation pipe, by injecting the hardening material from the inlet provided in a part of the transportation pipe, the ceramic lining material inserted into the transportation pipe is fixed with the hardening material. Therefore, it is possible to prevent the ceramic lining material from swinging in the transportation pipe, and at the same time, it is possible to absorb the impact when the material to be transported collides with the ceramic lining material by the hardened material. Furthermore, since the curing material can be injected from the injection port, workability can be improved.

[0036]

In the ceramic lining material according to the first to fifth aspects, since the ceramic lining material is made of ceramic, it is possible to improve the wear resistance of the material to be transported made of a hard material, and the reliability of durability and the like. It is possible to realize a ceramic lining material having excellent properties. Further, since the ceramic lining material is formed by connecting a plurality of ceramic connectors, it is possible to prevent deterioration of wear resistance and the like due to peeling of the lining material and the like, which is reliable. It is possible to realize a ceramic lining material having excellent properties.

Particularly, in the ceramic lining material according to the second aspect, since the half-diameter cutout portion having a constant width is formed at the maximum diameter portion of the ball storage portion, the ceramic connectors can be easily connected to each other. It can be pivotally connected to. In addition, because the partial cover that covers the half cutout is joined, it is possible to prevent deterioration of wear resistance due to peeling of the lining material, etc. as in the past, and a ceramic lining with excellent reliability. Material can be realized.

Particularly, in the ceramic lining material according to the third aspect, since the elastic protrusions are hooked on each other, the deterioration of the abrasion resistance due to the peeling of the lining material or the like as in the conventional case is prevented. It is possible to realize a highly reliable ceramic lining material.

Particularly, in the ceramic lining material according to the fourth aspect, since the elastic protrusions are hooked on each other, the deterioration of the wear resistance due to the peeling of the lining material and the like as in the prior art is prevented. It is possible to realize a highly reliable ceramic lining material.

Particularly, in the ceramic lining material according to the fifth aspect, since the outer bulging portion is fitted into the inner notch to be connected, the abrasion resistance is reduced due to the conventional peeling of the lining material. Etc. can be prevented, and a highly reliable ceramic lining material can be realized.

In the method of lining a transport pipe using the ceramic lining material according to the sixth aspect, the ceramic lining material is lined in the transport pipe to improve wear resistance to a hard transported material during pneumatic transportation. Since it can be improved, the service life of the transport pipe can be extended, and a transport pipe lining method using a ceramic lining material that can realize a transport pipe excellent in reliability such as durability can be realized. it can.

Further, since the ceramic lining material can be fixed with a hardening material to prevent rocking, breakage, etc., a transport pipe using a ceramic lining material that can realize a highly reliable transport pipe can be obtained. A lining method can be realized. Further, since the ceramic lining material can be easily inserted into the transport pipe, it is possible to realize a method of lining the transport pipe using the ceramic lining material which is excellent in workability and workability.

[0043]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. In each of the embodiments, the same components are denoted by the same reference numerals, and description thereof is omitted.

FIG. 1 is an external perspective view of the ceramic lining material according to the first embodiment of the present invention, and FIG.
Is an exploded perspective view of the ceramic connector of the same ceramic lining material, FIG. 3 (a) is a plan view of the ceramic connector of the same ceramic lining material, and FIG. 3 (b) is a ceramic connector of the same ceramic lining material. Sectional view of the connector, FIG. 3 (c) is a sectional view of a partial cover of the ceramic connector of the same ceramic lining material, and FIG. 4 is an explanatory view of a method of lining a transportation pipe using the same ceramic lining material. 5 is an external perspective view of the ceramic lining material according to the second embodiment of the present invention, and FIG.
6A is a plan view of the ceramic connector of the same ceramic lining material, FIG. 6B is a cross-sectional view of the ceramic connector of the same ceramic lining material, and FIG. 7 is transportation using the same ceramic lining material. FIG. 8 is an explanatory view of a pipe lining method, FIG. 8 is an external perspective view of a ceramic lining material according to a third embodiment of the present invention, and FIG.
Is a plan view of the ceramic connector of the same ceramic lining material, FIG. 9B is a cross-sectional view of the ceramic connector of the same ceramic lining material, and FIG. 10 is a transport pipe lining using the same ceramic lining material. FIG. 11 is an explanatory view of the method, FIG. 11 is an external perspective view of the ceramic lining material according to the fourth embodiment of the present invention, and FIG.
Is a plan view of the ceramic connector of the same ceramic lining material, FIG. 12 (b) is a cross-sectional view of the ceramic connector of the same ceramic lining material, and FIG. 13 is a transport pipe lining using the same ceramic lining material. It is explanatory drawing of a method.

As shown in FIGS. 1 to 4, the ceramic lining material 10 according to the first embodiment of the present invention is
A plurality of ceramic connectors 11 mainly made of ceramics such as alumina are connected to each other so as to be swingable. The ceramic connector 11 includes a ball portion 11a and a ball storage portion 11b that are integrally connected.
Having. Hereinafter, these will be described in detail.

The ball portion 11a is formed in a true spherical shape, and an insertion hole 11c for sending a material to be transported (not shown) is formed in the center thereof. On the other hand, the ball storage portion 11b is formed in a substantially columnar shape and has a reduced diameter (or a tapered shape) toward the ball portion 11a.
In addition, the ball portion 11 is provided on one end surface of the ball storage portion 11b.
A ball accommodating hole 11d having an arc-shaped cross section having an inner diameter (φ ₂ ) slightly larger than the outer diameter (φ ₁ ) of a is formed.
Further, the ball storage portion 11b is formed with a through hole 11e penetrating from the ball storage hole 11d to the insertion hole 11c.

Further, in FIG. 3 (b), a half cutout portion 11f is formed at a half peripheral edge of one end of the ball storage portion 11b. The width (b) of this half cutout 11f
It is formed a semi-circumference of one end of the ball housing portion 11b, as the remaining half periphery axial length (b ₃₎ the relative short axial. Further, in the width (b) of the half cutout 11f, from the maximum diameter portion (or referred to as a great circle portion) of the ball storage hole 11d indicated by the alternate long and short dash line to one end of the half cutout 11f indicated by the broken line. The width (b ₁ ) has a width equal to or greater than the width (b ₂ ) from the maximum diameter portion to one end of the ball storage portion 11b,
Is formed. In addition, a portion including the maximum diameter portion and having a width capable of accommodating the ball portion 11a is referred to as a maximum diameter portion (see FIG. 3C).

Further, hooking projections 11g each having an inner diameter slightly larger than the outer diameter of one end of the ball storage portion 11b are formed at both ends of the half cutout portion 11f. There is. Then, the partial cover 11h is fitted into and joined to the half cutout 11f.
The inner diameter (φ ₃ ) and the outer diameter of the partial cover 11h are the same as the inner diameter (φ ₂ ) and the outer diameter of one end of the ball storage portion 11b, and are formed in a semicircular shape in plan view. .

Next, a method of lining the transport pipe 12 using the ceramic lining material 10 according to the first embodiment of the present invention will be described. Here, the ceramic lining material 10 according to the first embodiment of the present invention.
As shown in FIG. 4, the lining method of the transport pipe 12 using a metal pipe is made of a metal such as a cast iron pipe bent to have a predetermined radius of curvature (R) to form a curved portion of the transport pipe 12. It shall be applied to the curved pipe 12a composed of a pipe.

An injection port 12b for injecting the hardening material 13 is formed at the center of one circumferential surface of the curved tube 12a, and a cylindrical injection projection 12c communicating with the injection port 12b is formed. It is attached by welding. The injection projection 12c has a columnar closing member 12d such as a blind plug having an outer diameter substantially equal to the inner diameter of the injection projection 12c.
Can be installed. Further, one end of the curved pipe 12a has an inner diameter slightly larger than the outer diameter of the curved pipe 12a, and one or a plurality of bolt mounting holes 12f are formed on the peripheral surface thereof.
The flange 12e formed with is attached by welding or the like. Further, at one end of the curved pipe 12a, a protrusion 12h having a diameter larger than the outer diameter of the curved pipe 12a and projecting at a portion facing the gap 12i between the ceramic lining material 10 and the curved pipe 12a is formed. The pressing metal fitting 12g is attached by welding or the like.

First, the curved tube 12a shown in FIG. 4 is prepared, and at the same time, the number of ceramic connectors 11 required for lining the curved tube 12a are prepared. Next, the ball portion 11a of the other ceramic connector 11 is housed in the ball housing hole 11d of the one ceramic connector 11. Here, since the half-divided cutout portion 11f is formed by the portion having the maximum diameter, it can be easily stored.

Next, a partial cover 11h is fitted into and joined to the half cutout 11f of the ceramic connector 11. Here, the partial cover 11h and the hooking protrusion 11g
An adhesive such as a vinyl acetate resin solution-type adhesive, a vinyl chloride copolymer resin solution-type adhesive, or a so-called instant adhesive, a cyanoacrylate-based adhesive, may be applied to the contact surface. As a result, it is possible to reliably prevent the partial cover 11h from coming off from the half cutout 11f.
Hereinafter, the same operation as described above is repeated to produce the ceramic lining material 10 according to the first embodiment of the present invention.

Next, the produced ceramic lining material 10 according to the first embodiment of the present invention is bent into a curved pipe 12.
Insert into a. Here, since each ceramic connector 11 of the ceramic lining material 10 is pivotally connected to another adjacent ceramic connector 11, it can be easily inserted along the bend of the curved pipe 12a. can do.

Next, the ceramic lining material 10
Pressing metal fittings 12g are attached to both ends of the bent tube 12a in which the is inserted. Next, the inlet 12 of the bent tube 12a
The space 12i is filled with a hardening material 13 such as cement paste or cement mortar from b. Finally, the inlet 12b
Is closed by the closing member 12d, and then the hardening material 13 is cured to complete the lining of the curved pipe 12a.

It should be noted that the metal fitting 1 is attached to one end of the bent tube 12a.
Before mounting 2 g, the hardening material 13 may be injected into the gap 12i from this one end. In addition, the curved pipe 12a lined with the ceramic lining material 10 according to the first embodiment of the present invention is similar to the above, and other curved pipes (not shown) whose inner peripheral surface is lined or straight pipes Tube (not shown)
And the like and fastening members (not shown) such as bolts and nuts form the transportation pipe 12 by connecting them and can be used for pneumatic transportation of various materials to be transported.

As described above, in the ceramic lining material 10 according to the first embodiment of the present invention, a plurality of adjacent ceramic connectors 11 are connected to each other so that they can be swung. The pipe 12a can be easily bent along the bend, and the inner peripheral surface of the bent pipe 12a can be easily lined. In particular, since the diameter of the vicinity of the facing portion 11i of the ball housing portion 11b with the ball portion 11a is reduced, the swing angle of the ceramic connector 11 can be increased, and the curved pipe 12a having a small radius of curvature (R). But it can be dealt with easily.

Further, for example, a ceramic connector 11
Since the ball storage hole 11d of the ball storage portion 11b is formed in an arc-shaped cross section, it is possible to reliably prevent the ball portion 11a stored in the ball storage portion 11b from coming off. Further, even if the temperature of each ceramic connector 11 becomes high and the effect of the adhesive applied between the partial cover 11h and the hooking convex portion 11g weakens, the ceramic lining material 10 is pressed by the hardening material 13. Therefore, it is possible to reliably prevent the ceramic connector 11 from coming off. Therefore, even if the material to be transported such as flux, coke, or powder material of hard material such as pulverized coal is pneumatically transported in the curved pipe 12a, the conventional problems can be prevented and the resistance of the curved pipe 12a can be improved. Wearability and durability can be improved.

Next, the ceramic lining material 20 according to the second embodiment of the present invention will be described. As shown in FIGS. 5 to 7, in the ceramic lining material 20 according to the second embodiment of the present invention, a plurality of ceramic connectors 21 mainly composed of ceramics such as zirconia can be swung with respect to each other. Concatenated and configured. Further, the ceramic connector 21 has a cylindrical portion 21a and a skirt portion 21b that are integrally connected. Hereinafter, these will be described in detail.

The cylindrical portion 21a is formed in a cylindrical shape. Further, four hooking protrusions 21c are radially formed on the outer peripheral surface of the tubular portion 21a. The hooking protrusion 21c is formed in a rod shape, and a tuck 21d for hooking the elastic cord 22 is formed near the tip thereof. A bulging ring portion 21e is formed at one end of the tubular portion 21a. This bulging ring portion 21e
Is formed so as to expand the diameter of one end of the tubular portion 21a. Further, the skirt portion 2 is provided on the other end of the tubular portion 21a.
1b is integrally connected. The inner diameter (φ ₅ ) of the skirt portion 21b is larger than the outer diameter (φ ₄ ) of the bulging ring portion 21e.

Next, a method of lining the transport pipe 23 using the ceramic lining material 20 according to the second embodiment of the present invention will be described. First, the curved pipe 12a shown in FIG. 7 is prepared, and a plurality of ceramic connectors 21 necessary for lining the curved pipe 12a are prepared. Next, in the skirt portion 21b of one ceramic connector 21, the cylindrical portion 2 of another ceramic connector 21 is formed.
After inserting 1a, the elastic cord 22 made of synthetic rubber such as styrene-butadiene rubber is hooked on the tuck 21d of the hooking protrusion 21c of each ceramic connector 21 to connect them. Hereinafter, the same operation as described above is repeated to produce the ceramic lining material 20 according to the second embodiment of the present invention.

Then, the produced ceramic lining material 20 according to the second embodiment of the present invention is used for lining the transport pipe 12 using the ceramic lining material 10 according to the first embodiment of the present invention. Similar to the method, as shown in FIG. 7, the inner peripheral surface of the curved pipe 12a is lined. In the lining method for the transport pipe 23 using the ceramic lining material 20 according to the second embodiment of the present invention, a plurality of injection ports 12 are provided on the outer peripheral surface of the curved pipe 12a.
b is provided, and the curing material 13 is injected from each injection port 12b. Further, a foam resin such as urethane foam or polystyrene foam is used for the curing material 13 '.

As described above, in the ceramic lining material 20 according to the second embodiment of the present invention, a plurality of ceramic connectors 21 are formed so as to be swingable. As with the ceramic lining material 10 according to the first embodiment, the curved pipe 1 can be easily
The inner peripheral surface of 2a can be lined. In addition, for example, since the latching protrusion 21c is formed on the outer peripheral surface of the ceramic connector 21, the tubular portion of the other ceramic connector 21 is provided in the skirt portion 21b of the one ceramic connector 21. It is possible to reliably prevent the other ceramic connector 21 from coming off the one ceramic connector 21 when the 21a is fitted.

Further, since the foaming resin is used for the hardening material 13 ', the curing period required when using the hardening material 13 such as cement paste or cement mortar can be omitted, so that workability is improved. You can Also,
Compared with the hardened material 13 such as cement paste or cement mortar, it has better impact resistance when hit by the material to be transported, so the durability of the transport pipe 23 can be improved. Furthermore, since a plurality of inlets 12b are formed in the curved pipe 12a,
The injection work of the hardening material 13 can be performed quickly, and the workability can be improved.

Next, a ceramic lining material 30 according to the third embodiment of the present invention will be described.
As shown in FIGS. 8 to 10, in the ceramic lining material 30 according to the third embodiment of the present invention, a plurality of ceramic connectors 31 having ceramics such as silica as a main component can be swung with respect to each other. Concatenated and configured. Further, the ceramic connector 31 is composed of a cylindrical body 32 formed in a diameter-expanded shape from one end to the other end. Hereinafter, these will be described in detail.

On the outer peripheral surface of the cylindrical body 32, four hooking projections 32b are radially formed. Further, the hook 32 for hooking the elastic cord 22 is attached to the hook protrusion 32b.
c is formed. In addition, at one end of the tubular body 32,
A bulging ring portion 32a that expands the diameter of one end of the tubular body 32 is formed. Outer diameter of this bulging ring portion 32a (φ ₆ )
Is smaller than the inner diameter (φ ₇ ) of the other end of the tubular body 32.

Next, a method of lining the transport pipe 33 using the ceramic lining material 30 according to the third embodiment of the present invention will be described. First, the curved pipe 12a shown in FIG. 10 is prepared, and a plurality of ceramic connectors 31 necessary for lining the curved pipe 12a are prepared. Next, after inserting one end portion of another ceramic connector 31 into the other end portion of one ceramic connector 31, the elastic string 22 is hooked on the tangle 32c of the hooking protrusion 32b to connect. .

Hereinafter, the same operation as described above is repeated to produce the ceramic lining material 30 according to the third embodiment of the present invention. Then, the third of the present invention created
Ceramic lining material 30 according to the embodiment of
The inner peripheral surface of the curved pipe 12a is lined as shown in FIG. 10 in the same manner as the method for lining the transport pipe 12 using the ceramic lining material 10 according to the first embodiment of the present invention.

As described above, in the ceramic lining material 30 according to the third embodiment of the present invention, since a plurality of ceramic connectors 31 are connected to each other so as to be swingable, the present invention can be used. Like the ceramic lining material 10 according to the first embodiment, the curved pipe 12 can be easily formed.
The inner peripheral surface of a can be lined. In addition, for example, the hook projection 3 is formed on the outer peripheral surface of the ceramic connector 31.
Since 2b is formed, when one end of another ceramic connector 31 is fitted into the other end of one ceramic connector 31, the other ceramic connector 31 is one ceramic connector 31. It can be reliably prevented from coming off from 31.

Next, a ceramic lining material 40 according to the fourth embodiment of the present invention will be described.
As shown in FIGS. 11 to 13, in the ceramic lining material 40 according to the fourth embodiment of the present invention, a plurality of ceramic connectors 41 containing ceramics such as zirconia as a main component can be swung with respect to each other. Concatenated and configured. The ceramic connector 41 is formed in a substantially spherical shape on the inside, and has a tubular portion 42 having a large diameter portion 42a on one side and a small diameter portion 42b on the other side. Hereinafter, these will be described in detail.

The large diameter portion 42a of the cylindrical portion 42 is formed with an inner bulging portion 42c which reduces the diameter of the large diameter portion 42a. Further, inner cutouts 42d are formed on the inner peripheral edge of the inner bulging portion 42c at substantially equal pitches. On the other hand, on the small diameter portion 42b of the tubular portion 42, an outer bulge portion 42e for expanding the diameter of the small diameter portion 42b is formed at the same pitch as the inner notch 42d. The virtual outer diameter line (φ ₈ ) formed on the outer peripheral surface of the outer bulge portion 42e is slightly smaller than the virtual inner diameter line (φ ₉ ) formed on the inner peripheral surface of the inner cutout 42d. ing.

Next, a method of lining the transportation pipe 43 using the ceramic lining material 40 according to the fourth embodiment of the present invention will be described. First, the curved pipe 12a shown in FIG. 13 is prepared, and a plurality of ceramic connectors 41 required for lining the curved pipe 12a are prepared. Next, the inner notch 4 of the one ceramic connector 41
2d has an outer bulge 42 of another ceramic connector 41.
After inserting e, either one of the ceramic connectors 41 is rotated clockwise or counterclockwise by about 45 °, whereby the two ceramic connectors 42 described above are inserted.
To connect.

Hereinafter, the same operation as described above is repeated to produce the ceramic lining material 40 according to the fourth embodiment of the present invention. Then, the fourth of the present invention created
Ceramic lining material 40 according to the embodiment of
The inner peripheral surface of the curved pipe 12a is lined as shown in FIG. 13 in the same manner as the method of lining the transport pipe 12 using the ceramic lining material 10 according to the first embodiment of the present invention.

As described above, according to the ceramic lining material 40 according to the fourth embodiment of the present invention, a plurality of ceramic connectors 41 are connected to each other. Similar to the ceramic lining material 10 according to the embodiment, the inner peripheral surface of the curved pipe 12a can be easily lined.

Further, for example, a ceramic connector 41
Since the outer bulging portion 42e (φ ₈ ) of the one is formed to have a larger diameter than the inner notch 42d (φ ₉ ), from the other end side of the one ceramic connector 41 to another ceramic connector. Four
It is possible to reliably prevent the other ceramic connector 41 from coming off from the one ceramic connector 41 when the one end portion side of 1 is fitted.

The embodiments of the present invention have been described above.
The present invention is not limited to these embodiments, and all changes in conditions without departing from the gist are within the scope of the present invention.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a ceramic lining material according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a ceramic connector of the same ceramic lining material.

FIG. 3A is a plan view of a ceramic connector of the same ceramic lining material. (B) It is sectional drawing of the ceramic connector of the same ceramic lining material. (C) It is sectional drawing of the partial cover of the ceramic connector of the same ceramic lining material.

FIG. 4 is an explanatory diagram of a method for lining a transportation pipe using the ceramic lining material.

FIG. 5 is an external perspective view of a ceramic lining material according to a second embodiment of the present invention.

FIG. 6 (a) is a plan view of a ceramic connector of the same ceramic lining material. (B) It is sectional drawing of the ceramic connector of the same ceramic lining material.

FIG. 7 is an explanatory diagram of a method of lining a transportation pipe using the same ceramic lining material.

FIG. 8 is an external perspective view of a ceramic lining material according to a third embodiment of the present invention.

FIG. 9 (a) is a plan view of a ceramic connector of the same ceramic lining material. (B) It is sectional drawing of the ceramic connector of the same ceramic lining material.

FIG. 10 is an explanatory diagram of a method for lining a transportation pipe using the ceramic lining material.

FIG. 11 is an external perspective view of a ceramic lining material according to a fourth embodiment of the present invention.

FIG. 12 (a) is a plan view of a ceramic connector of the same ceramic lining material. (B) It is sectional drawing of the ceramic connector of the same ceramic lining material.

FIG. 13 is an explanatory diagram of a method of lining a transportation pipe using the same ceramic lining material.

FIG. 14 (a) is an explanatory diagram of a lining material according to a conventional embodiment. (B) It is explanatory drawing of the other lining material which concerns on conventional embodiment. (C) It is explanatory drawing of the further another lining material which concerns on conventional embodiment.

FIG. 15 is an explanatory diagram of a manufacturing state of a lining material according to a conventional embodiment.

FIG. 16 is an explanatory diagram of a lining state of a straight pipe to which a lining method for a transport pipe using a lining material according to a conventional embodiment is applied.

FIG. 17 is an explanatory view of a lining state of a curved pipe to which the method for lining a transport pipe using another lining material according to the conventional embodiment or another lining material according to the conventional embodiment is applied.

[Explanation of symbols]

10 Ceramics Lining Material 11 Ceramics Connector 11a Ball Section 11b Ball Storage Section 11c Insertion Hole 11d Ball Storage Hole 11e Through Hole 11f Half Cut-out Notch Section 11g Locking Convex Section 11h Part Cover 11i Opposing Section 12 Transport Pipe 12a Curved Pipe 12b Injection port 12c Injecting protrusion 12d Closing member 12e Flange 12f Bolt mounting hole 12g Pressing metal fitting 12h Protrusion 12i Gap 13 Hardening material 20 Ceramic lining material 21 Ceramic connector 21a Cylindrical portion 21b Skirt portion 21c Hooking protrusion portion 21d Tangled 21e Swelling ring part 22 Elastic string 23 Transport pipe 30 Ceramic lining material 31 Ceramic connector 32 Cylindrical body 32a Swelling ring part 32b Hooking protrusion 32c Tangle 33 Transport pipe 40 Ceramics la Training material 41 ceramic consolidated 42 cylindrical portion 42a large diameter portion 42b-out the small diameter portion 42c in the bulging portion 42d in the notch 42e outer bulging portion 43 transport tube

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Harada 5-5-23 Himei, Ogurakita-ku, Kitakyushu, Fukuoka Nice Co., Ltd. Kyushu Engineering Works (72) Inventor Sumihiko Kurita 1664 Arita-cho, Nishimatsuura-gun Saga Shares Company Koran In-house

Claims (6)

[Claims] 1. A plurality of ceramic connectors each having a ball portion having a through hole for allowing a fluid to flow in the center thereof and a ball storage portion integrally connected to the ball portion, wherein each of the ball portions is a ceramic connector. A lining material made of ceramics, which is fitted into the ball storage portion so as to be swingable and connected. 2. The ball accommodating portion is provided with a half-divided notch having a predetermined width at a portion having the largest diameter, and after accommodating the ball portion of another ceramic connector in the ball accommodating portion, The ceramic lining material according to claim 1, wherein a separately prepared partial cover that covers the half cutout is joined. 3. A tubular portion having locking projections radially formed on the outer peripheral surface and having a bulging ring portion at one end, and an enlarged diameter integrated with the other end of the tubular portion. A plurality of ceramic connectors each having a skirt portion connected to each other as the bulging ring portions are slidably fitted into the skirt portions, and the adjacent ceramic connectors are hooked. A ceramic lining material in which an elastic string is hung on the protrusions to be connected. 4. A cylinder in which hooking projections are radially formed on the outer peripheral surface, a bulging ring is formed at one end, and the diameter is expanded from the one end toward the other end. A plurality of ceramic connectors made of strips are fitted into the other end of the respective bulging ring parts so that they can be swung, and an elastic string is attached to the hooking protrusions of the adjacent ceramic connectors. A ceramic lining material characterized by being hung and connected. 5. A cylindrical portion having a substantially spherical inside and a large diameter portion on one side and a small diameter portion on the other side, and a cylindrical portion integrally formed inside the large diameter portion, and further having internal notches formed at a predetermined pitch. A plurality of ceramic connectors each having an inner bulging portion and an outer bulging portion that are integrally formed on the outside of the small-diameter portion and have an outer surface that is narrower than the inner surface of the inner notch A ceramic lining material, characterized in that the outer bulging portion and the inner bulging portion are connected in a state of being hooked so as to be swingable. 6. The method according to claim 1, wherein the transportation pipe is lined.
5. The transportation using a ceramic lining material, characterized in that after inserting the ceramic lining material according to any one of 5 to 5, a hardening material is injected from an injection port provided in a part of the transportation pipe. Tube lining method.