CN104960084B - External wrapping concrete ductile iron pipe producing device - Google Patents
External wrapping concrete ductile iron pipe producing device Download PDFInfo
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- CN104960084B CN104960084B CN201510433235.4A CN201510433235A CN104960084B CN 104960084 B CN104960084 B CN 104960084B CN 201510433235 A CN201510433235 A CN 201510433235A CN 104960084 B CN104960084 B CN 104960084B
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- iron pipe
- ductile iron
- concrete
- bellmouth
- ring
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0038—Machines or methods for applying the material to surfaces to form a permanent layer thereon lining the outer wall of hollow objects, e.g. pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
- B28B1/32—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by projecting, e.g. spraying
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of external wrapping concrete ductile iron pipe producing device，It is related to ductile iron pipe making apparatus technical field，Including mobile trolley used and be arranged on chassis two ends by motor-driven support roller group，Ductile iron pipe two ends roll ring by bellmouth respectively and socket rolls ring stand and is located in support roller group，It is provided with concrete mortar coater structure and scraper plate sizing structure above ductile iron pipe、Side is provided with steel wire feed mechanism，Rotation with ductile iron pipe and the movement of chassis，Banding steel wire can be spirally wrapped around on the ductile iron pipe of spray coated concrete using steel wire feed mechanism，Scraper plate sizing structure is one piece of arc of matching cylindrical with ductile iron pipe，Described arc is respectively arranged at two ends with castellated plates and thin scraper plate，Gully in order to excise after any excess concrete and floating excision improves the roughness on surface，Reduce the labor intensity of workman.Mechanization degree of the present invention is high, also improves product quality while improving work efficiency.
Description
Technical field
The present invention relates to ductile iron pipe making apparatus technical field, more particularly, to a kind of external wrapping concrete ductile iron pipe
Producing device.
Background technology
With the increase to the raising of environmental requirement, excavating cost and because construction limits the increasing of the occasion that cannot excavate
Many, people using non-excavation laying or are no pipe trench laying technology in the urgent need to research.Document《External wrapping concrete spheroidal graphite cast-iron
Pipe》CN202708364 U just proposes a kind of external wrapping concrete ductile iron pipe for push pipe（One kind no pipe trench laying technology）
In construction.The manufacture method of this external wrapping concrete mainly has three kinds：Casting method, squeezing and pressing method and spraying, wherein, spraying is again
It is divided into roller to penetrate method and spurt method.At present, the making of ductile iron pipe external wrapping concrete relies primarily on mould casting craft；Squeezing and pressing method
It is used for the making of continuous way small dimension counterweight tube；Roller is penetrated method and is divided into top-emission type and lateral type again, is seen in PCCP pipe and counterweight tube
Making among, such as document《A kind of anticorrosive balance-weight pipe being prevented from weight coating slippage and preparation method thereof》 CN
102620065 A；And spurt method is used for the making of PCCP pipe, such as document《Low absorptivity Prestressed concrete cylinder pipe and system
Make method》.
At present, the making of ductile iron pipe external wrapping concrete relies primarily on mould casting craft, that is, outside ductile iron pipe
Portion puts the mould of cylinder type, then between casting concrete, by vibrator jolt ramming, de- after maintenance to some strength
The production technology of mould.Not only efficiency is low for this technique, and labor strength is also big in addition it is also necessary to every kind of specification puts into substantial amounts of mould
Tool, capital cost is than larger.
Concrete heavy wall in the sprayed coating concrete making technology of PCCP pipe is thinner, typically acts in 20mm, with outsourcing coagulation
The thickness of soil ball graphite cast iron pipe is compared, and makes a big difference；And although counterweight tube can reach the thick emitted dose of comparison, outside it
Surface quality is very poor and outside dimension cannot accurately ensure, and push pipe necessarily require external diameter accurately, smooth surface.In addition, with regard to ball
For graphite cast iron pipe specification, although PCCP pipe can by produce heavy caliber pipe its adopt vertical sprayed coating in the way of；And counterweight tube
Often specification is smaller, and how in below DN1400, and the maximum specification of ductile iron pipe is DN2600.
Content of the invention
The technical problem to be solved is the external wrapping concrete spheroidal graphite casting providing a kind of structure to be simple and convenient to operate
Iron pipe producing device, it is possible to decrease labor strength, it is ensured that product quality, improves work efficiency.
For solving above-mentioned technical problem, the technical solution used in the present invention is：
A kind of external wrapping concrete ductile iron pipe producing device, including support roller that is mobile trolley used and being arranged on chassis two ends
Group, ductile iron pipe two ends roll ring by bellmouth respectively and socket rolls ring stand and is located in support roller group and rotatable；Described support roller group
By Motor drive, it is provided with concrete mortar coater structure above described ductile iron pipe and scraper plate sizing structure, side are provided with steel wire
Feed mechanism, the rotation with ductile iron pipe and the movement of chassis, using steel wire feed mechanism banding steel wire can be in
Spiral wound is on the ductile iron pipe of spray coated concrete.
Preferably, described scraper plate sizing structure is one piece of arc of matching cylindrical with ductile iron pipe, described arc
Plate is respectively arranged at two ends with castellated plates and thin scraper plate, in order to excise the gully after any excess concrete and floating excision.
Preferably, described ductile iron pipe opposite side is provided with floating structure and cement paste injection component, and described cement is net
Slurry injection component is arranged on the front of floating structure, and described floating structure and cement paste injection component are arranged on steel wire feeding
The opposite side of mechanism.
Preferably, described concrete mortar coater structure includes the transfer roller of a pair and ductile iron pipe axis parallel, two transfer rollers
Centre is provided with gap, and concrete discharging opening is arranged on above gap, and concrete can be sprayed on ductile iron pipe from two transfer roller gaps
Outer surface.
Preferably, described steel wire feed mechanism includes being arranged on the fixed pulley of ductile iron pipe side, banding steel wire
End is fixed on ductile iron pipe, and the other end bypasses fixed pulley and is wrapped in the rotation of ductile iron pipe and the movement of chassis
On ductile iron pipe.
Preferably, described floating structure includes being fixedly installed on the base plate of ductile iron pipe side, fixing on described base plate
There is rubber flap, described cement paste injection component is spray gun, can be ejected into the water of concrete surface using rubber flap
Cement paste strikes off.
Preferably, described bellmouth rolling ring side is provided with the platform circle with spheroidal graphite cast-iron tube faucet inner hole, described bellmouth rolling
The platform circle external diameter of ring is less than the bellmouth internal diameter of ductile iron pipe, and the internal diameter that socket rolls ring is cylindrical more than the socket of ductile iron pipe straight
Footpath；Described circle is laid with two row's bolts hole vertically, and described bellmouth rolling ring is fixed on ductile iron pipe by fastening bolt
Bellmouth in；Described socket rolling ring is circular, and its periphery is laid with bolt hole, and described socket rolling ring passes through to fasten spiral shell
Bolt is fixed on the socket periphery of ductile iron pipe.
Preferably, described support roller group includes active roller station group and driven support roller group, active roller station group and driven support roller group
Structure is identical, all includes a pair of support roller being erected on chassis, and, by Motor drive, two is right for wherein active roller station group a support roller
Support roller is symmetricly set on chassis two ends, is respectively equipped with and rolls ring and the flange of socket rolling ring cooperation with bellmouth outside two pairs of support rollers, can
Prevent ductile iron pipe play.
Preferably, the left and right end face of described bellmouth rolling ring and inside and outside circle are equipped with lightening grooves.
Have the beneficial effects that using produced by technique scheme：Drive ball using active roller station group and driven support roller group
Graphite cast iron pipe rotates, moving horizontally by chassis simultaneously, and concrete can be equably sprayed on spheroidal graphite by concrete mortar coater structure
In surface of cast iron, roll ring by the bellmouth being fixed on ductile iron pipe two ends and socket rolling ring to overcome the ellipse of ductile iron pipe
Circularity, thus ensureing the final cylindricity of product, as scraper plate sizing structure arc by the castellated plates at its two ends and thin
Scraper plate, to excise the gully after any excess concrete and floating excision, improves product outer-diameter accuracy, and steel wire feed mechanism will carry
Shape steel wire is spirally wrapped around on ductile iron pipe and is fixed in concrete layer, enhances the robustness of concrete, then
Using spray gun, cement paste is injected in concrete surface, followed by the rubber flap in floating structure, cement paste is scraped
Flat, improve the roughness on surface, reduce the labor intensity of workman.The present invention has the advantages that structure is simple and convenient to operate, machine
Tool degree is high, also improves product quality while improving work efficiency.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the enlarged drawing at C in Fig. 1；
Fig. 4 is the enlarged drawing at D in Fig. 1；
Fig. 5 is the A direction view in Fig. 2；
Fig. 6 is the B direction view in Fig. 2；
Fig. 7 is the E-E profile of Fig. 1；
In figure：1- bellmouth rolls ring, 2- fastening bolt, 3- ductile iron pipe, 4- support roller group, 40- support roller, 41- flange, 42-
Lightening grooves, 5- chassis, 6- scraper plate sizing structure, 61- castellated plates, the thin scraper plate of 62-, 7- concrete mortar coater structure, 71- transfer roller, 8-
Socket rolls ring, 9- steel wire feed mechanism, 90- fixed pulley, 10- concrete discharging opening, the floating structure of 11-, and 12- cement paste sprays
Penetrate element, 13- banding steel wire, 14- concrete layer.
Specific embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
A kind of external wrapping concrete ductile iron pipe producing device as shown in figs. 1-7, including mobile trolley used 5 and be arranged on platform
The support roller group 4 at car 5 two ends, ductile iron pipe 3 two ends roll ring 1 by bellmouth respectively and socket rolls ring 8 and is erected in support roller group 4 simultaneously
Rotatably；Described support roller group 4, by Motor drive, is provided with concrete mortar coater structure 7 and scraper plate sizing above described ductile iron pipe 3
Structure 6, side are provided with steel wire feed mechanism 9, the movement of the rotation with ductile iron pipe 3 and chassis 5, are entered using steel wire
Banding steel wire 13 can be spirally wrapped around on the ductile iron pipe 3 of spray coated concrete to mechanism 9.
Described scraper plate sizing structure 6 is one piece of arc of matching cylindrical with ductile iron pipe 3, described arc two ends
It is respectively equipped with castellated plates 61 and thin scraper plate 62, in order to excise the gully after any excess concrete and floating excision.Scraper plate sizing structure 6
Can also be overall for one, its side of contacting cylindrical with ductile iron pipe 3 is arc, only concrete layer 14 surface is carried out
Once scrape and smear.
As a kind of preferred structure, described ductile iron pipe 3 opposite side is provided with floating structure 11 and cement paste injection unit
Part 12, described cement paste injection component 12 is arranged on the front of floating structure 11, described floating structure 11 and cement paste spray
Penetrate the opposite side that element 12 is arranged on steel wire feed mechanism 9.
Described concrete mortar coater structure 7 includes the transfer roller 71 of a pair and ductile iron pipe 3 axis parallel, in two transfer rollers 71
Between be provided with gap, concrete discharging opening 10 is arranged on above gap, and concrete can be sprayed on spheroidal graphite cast-iron from two transfer roller 71 gap
Pipe 3 outer surface, mobile with chassis 5 and ductile iron pipe 3 rotation concrete can equably be sprayed in pipe outer wall.
For the tightness of Concrete Structure layer 14, available steel wire feed mechanism 9 adds steel in concrete layer 14
Silk screen, plays the effect of reinforcement.Described steel wire feed mechanism 9 includes being arranged on the fixed pulley 90 of ductile iron pipe 3 side,
Banding steel wire 13 end is fixed on ductile iron pipe 3, the other end bypass fixed pulley 90 with ductile iron pipe 3 rotation and
The movement of chassis 5 is spirally wrapped around on ductile iron pipe and is fixed in concrete layer 14.
Described floating structure 11 includes being fixedly installed on the base plate of ductile iron pipe 3 side, and described base plate is fixed with rubber
Glue scraper plate, described cement paste injection component 12 is spray gun, can be ejected into the cement of concrete surface using rubber flap
Net slurry strikes off.Using spray gun after the outer injection water cement paste of concrete layer 14 of ductile iron pipe 3, recycle floating structure 11
Cement paste is struck off by rubber flap, improves the surface roughness of product.Alternative former using lance ejection cement paste
Manual hanging technique, reduces the labor intensity of workman, raises labour efficiency.Cement paste injection component 12 can also be hung by hand
Sizing process is realizing.
In order that bellmouth rolling ring 1 and socket rolling ring 8 are preferably coordinated with ductile iron pipe 3 fixing, roll ring 1 side in bellmouth
It is provided with the platform circle with ductile iron pipe 3 bellmouth inner hole, the platform circle external diameter that described bellmouth rolls ring 1 is less than ductile iron pipe 3
Bellmouth internal diameter, socket rolls the socket outside diameter more than ductile iron pipe 3 for the internal diameter of ring 8；Described circle is laid with vertically
Two row's bolts hole, described bellmouth rolling ring 1 is fixed in the bellmouth of ductile iron pipe 3 by fastening bolt 2；Described socket rolls ring 8
For circular, its periphery is laid with bolt hole, described socket rolling ring 8 is fixed on ductile iron pipe 3 by fastening bolt 2
Socket periphery on, make after installing bellmouth rolling ring 1 and socket rolling ring 8 keep coaxial.
Described support roller group 4 includes active roller station group and driven support roller group, the structure phase of active roller station group and driven support roller group
Same, all include a pair of the support roller 40 being erected on chassis, by Motor drive, two to support for wherein active roller station group a support roller 40
Wheel 40 is symmetricly set on chassis 5 two ends, and a support roller of Motor drive active roller station group rotates, and then drives other 3 support rollers
40 rotations, thus drive ductile iron pipe 3 to rotate；It is respectively equipped with outside two pairs of support rollers 40 and join with bellmouth rolling ring 1 and socket rolling ring 8
The flange 41 closing, ductile iron pipe 3 can be fixed on support roller 40 well.Because ductile iron pipe 3 has reduced scale and ellipse
The problem of degree, bellmouth rolling ring 1 end platform circle adopts built-in fixed structure, and for reducing outside dimension, bellmouth rolling ring 1 large cylindrical ratio holds
The mouth big 2-10mm of external diameter；Socket rolling ring 8 adopts external fixed structure, respectively bellmouth is rolled ring 1 and socket rolling using fastening bolt 2
Ring 8 is fixed on ductile iron pipe 3 two ends, is played strong using the cylindrical cooperation of cylindrical and support roller 40 that bellmouth rolling ring 1 and socket roll ring 8
The effect of positive ductile iron pipe 3 cylindricity；Adopt variable sprayed coating to control at ductile iron pipe 3 bellmouth position simultaneously, adjust chassis 5
Translational speed and the rotary speed of ductile iron pipe 3, make concrete be sprayed on bellmouth outer wall as far as possible, to reduce skin patching amount,
Improve work situation.
It is equipped with lightening grooves 42 on the left and right end face of described bellmouth rolling ring 1 and inside and outside circle, the entirety that bellmouth rolls ring 1 can be mitigated
Weight, installation easy to disassemble.
Its work process is summarized as follows：1）In advance in ductile iron pipe 3 socket welded flange and gusset；2）In spheroidal graphite cast-iron
The bellmouth of pipe 3 and socket are respectively mounted bellmouth rolling ring 1 and socket rolling ring 8, and adjust that bellmouth rolls ring 1 and socket rolls the coaxial of ring 8
Degree, for overcoming the ellipse of ductile iron pipe, improves beating of ductile iron pipe, also can avoid the side that concrete roller is penetrated simultaneously
Boundary；3）Assembling bellmouth is rolled ring 1 and the ductile iron pipe 3 of socket rolling ring 8 hangs in mobile trolley used 5, using the support on mobile trolley used 5
Wheel group 4 can realize ductile iron pipe 3 around the rotary motion of axial line and feed motion in the axial direction；4）Concrete sprayed coating
And exit：Rotation with ductile iron pipe 3 and feeding, concrete mortar coater structure 7 is uniform to be cast concrete spray in spheroidal graphite
Iron pipe 3 surface, after the completion of concrete layer 14 sprayed coating, chassis 5 exits sprayed coating station；5）Ductile iron pipe 3 hangs in lower station, removes
Bellmouth rolling ring 1 and socket rolling ring 8；6）Health preserving；7）Ductile iron pipe 3 hangs in the station that repairs a die and is repaired a die；8）Packaging and storage.
Ductile iron pipe 3 is driven to rotate using active roller station group and driven support roller group, simultaneously by the horizontal axis of chassis 5
Mobile, concrete can be equably sprayed on ductile iron pipe 3 surface by concrete mortar coater structure 7, casts by being fixed on spheroidal graphite
The bellmouth rolling ring 1 at iron pipe 3 two ends and socket roll ring 8 to overcome the ovality of ductile iron pipe 3, thus ensureing the final circle of product
Post degree, as scraper plate sizing structure 6 arc by the castellated plates 61 at its two ends and thin scraper plate 62, to excise any excess concrete
Gully with after floating excision, improves product outer-diameter accuracy, banding steel wire 13 is twined by steel wire feed mechanism 9 in the shape of a spiral
It is wound on ductile iron pipe 3 and is fixed in concrete layer 14, enhance the robustness of concrete layer, recycle spray gun by water
Cement paste is injected in concrete surface, strikes off followed by the rubber flap cement paste in floating structure 11, improves table
The roughness in face, reduces the labor intensity of workman.
In sum, the present invention has the advantages that structure is simple and convenient to operate, and mechanization degree is high, improves product table
The roughness in face, reduces the labor intensity of workman, is not precluded from manual hanging technique simultaneously.The present invention adopts concrete sprayed coating side
Formula, easy to use, it is easy to accomplish automatization, save equipment investment, raising production rate that can be very big, improve equipment utilization
Rate, also improves product quality while improving work efficiency.
Claims (6)
1. a kind of external wrapping concrete ductile iron pipe producing device, including mobile trolley used（5）And it is arranged on chassis（5）The support at two ends
Wheel group（4）, ductile iron pipe（3）Ring is rolled by bellmouth respectively in two ends（1）Roll ring with socket（8）It is erected at support roller group（4）On simultaneously
Rotatably；Described support roller group（4）By Motor drive, described ductile iron pipe（3）Top is provided with concrete mortar coater structure（7）With scrape
Plate sizing structure（6）, side be provided with steel wire feed mechanism（9）, with ductile iron pipe（3）Rotation and chassis（5）Shifting
Dynamic, using steel wire feed mechanism（9）Can be by banding steel wire（13）It is spirally wrapped around the spheroidal graphite casting of spray coated concrete
Iron pipe（3）On；Described scraper plate sizing structure（6）For one piece and ductile iron pipe（3）The cylindrical arc matching, described arc
Plate is respectively arranged at two ends with castellated plates（61）With thin scraper plate（62）, in order to excise the gully after any excess concrete and floating excision；Its
It is characterised by：Described ductile iron pipe（3）Opposite side is provided with floating structure（11）With cement paste injection component（12）, described water
Cement paste injection component（12）It is arranged on floating structure（11）Front, described floating structure（11）With cement paste injection component
（12）It is arranged on steel wire feed mechanism（9）Opposite side；Described bellmouth rolls ring（1）Side is provided with and ductile iron pipe（3）Hold
The platform circle of mouth inner hole, described bellmouth rolls ring（1）Platform circle external diameter be less than ductile iron pipe（3）Bellmouth internal diameter, socket roll
Ring（8）Internal diameter be more than ductile iron pipe（3）Socket outside diameter；Described circle is laid with two row's bolts hole vertically,
Described bellmouth rolls ring（1）By fastening bolt（2）It is fixed on ductile iron pipe（3）Bellmouth in；Described socket rolls ring（8）For circle
Ring-type, its periphery is laid with bolt hole, and described socket rolls ring（8）By fastening bolt（2）It is fixed on ductile iron pipe
（3）Socket periphery on.
2. external wrapping concrete ductile iron pipe producing device according to claim 1 it is characterised in that：Described concrete roller
Penetrate mechanism（7）Including a pair and ductile iron pipe（3）The transfer roller of axis parallel（71）, two transfer rollers（71）Centre is provided with gap,
Concrete discharging opening（10）It is arranged on above gap, concrete can be from two transfer rollers（71）Gap is sprayed on ductile iron pipe（3）Outward
Surface.
3. external wrapping concrete ductile iron pipe producing device according to claim 1 it is characterised in that：Described steel wire enters
To mechanism（9）Including being arranged on ductile iron pipe（3）The fixed pulley of side（90）, banding steel wire（13）End is fixed on spheroidal graphite
Cast iron pipe（3）On, the other end bypasses fixed pulley（90）With ductile iron pipe（3）Rotation and chassis（5）Movement be wrapped in
Ductile iron pipe（3）On.
4. external wrapping concrete ductile iron pipe producing device according to claim 1 it is characterised in that：Described floating structure
（11）Including being fixedly installed on ductile iron pipe（3）The base plate of side, described base plate is fixed with rubber flap, and described cement is net
Slurry injection component（12）For spray gun, concrete layer can will be ejected into using rubber flap（14）The cement paste on surface strikes off.
5. external wrapping concrete ductile iron pipe producing device according to claim 1 it is characterised in that：Described support roller group
（4）Including active roller station group and driven support roller group, active roller station group is identical with the structure of driven support roller group, all includes being erected at platform
A pair of support roller on car（40）, a support roller of wherein active roller station group（40）By Motor drive, two pairs of support rollers（40）Symmetrically set
Put in chassis（5）Two ends, two pairs of support rollers（40）Outside is respectively equipped with rolls ring with bellmouth（1）Roll ring with socket（8）The flange of cooperation
（41）.
6. external wrapping concrete ductile iron pipe producing device according to claim 1 it is characterised in that：Described bellmouth rolls ring
（1）Left and right end face and inside and outside circle on be equipped with lightening grooves（42）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433235.4A CN104960084B (en) | 2015-07-22 | 2015-07-22 | External wrapping concrete ductile iron pipe producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433235.4A CN104960084B (en) | 2015-07-22 | 2015-07-22 | External wrapping concrete ductile iron pipe producing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104960084A CN104960084A (en) | 2015-10-07 |
| CN104960084B true CN104960084B (en) | 2017-03-08 |
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ID=54214248
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510433235.4A Active CN104960084B (en) | 2015-07-22 | 2015-07-22 | External wrapping concrete ductile iron pipe producing device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160549B (en) * | 2017-07-14 | 2022-11-08 | 扬州起航机械有限公司 | Suspension roller machine |
| CN107442386B (en) * | 2017-08-30 | 2020-09-22 | 新兴铸管股份有限公司 | Internal coating process for nodular cast iron pipe |
| CN108789794B (en) * | 2018-05-31 | 2024-02-27 | 新疆国统管道股份有限公司 | PCCP (prestressed concrete cylinder pipe) guniting system and application thereof |
| CN109624059B (en) * | 2018-12-20 | 2020-12-25 | 重庆市和利源石材有限公司 | Cylindrical stone crystal surface manufacturing device and manufacturing process |
| CN109591206B (en) * | 2018-12-20 | 2020-11-13 | 巫溪县玉帛石材有限公司 | Crystal face stone manufacturing process |
| CN113681707B (en) * | 2021-07-19 | 2024-01-09 | 莫远志 | Manufacturing equipment of high-temperature heat-resistant pipe for nonferrous metal smelting by extrusion method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR999318A (en) * | 1945-12-26 | 1952-01-30 | Societes Reunies Everite Situb | |
| US3739747A (en) * | 1970-12-16 | 1973-06-19 | R Sullivan | Machine for applying coating material to pipe |
| US3901963A (en) * | 1971-05-06 | 1975-08-26 | Arthur D Werner | Reinforcement for pipe coatings |
| US3985848A (en) * | 1974-12-05 | 1976-10-12 | Bredero Price, B.V. | Method for cutting concrete coated pipe |
| US5097871A (en) * | 1989-02-10 | 1992-03-24 | Kurimoto, Ltd. | Pipe for pipe jacking |
| KR20020095304A (en) * | 2001-06-14 | 2002-12-26 | 건양콘크리트공업 주식회사 | auto coating machine steel reinforcing steel pipe |
| CN101987477A (en) * | 2009-08-04 | 2011-03-23 | 新疆国统管道股份有限公司 | Improved manufacturing method of prestressed concrete cylinder pipe |
| MY171980A (en) * | 2011-07-04 | 2019-11-11 | Shawcor Ltd | Vibrating finishing plate technology |
| CN102777706A (en) * | 2012-08-10 | 2012-11-14 | 新兴铸管股份有限公司 | Encased concrete nodular cast iron pipe |
| CN102909784B (en) * | 2012-11-06 | 2014-10-08 | 倪志权 | Method and device for producing prestressed concrete cylinder pipe by surfactant |
| CN204844458U (en) * | 2015-07-22 | 2015-12-09 | 新兴铸管股份有限公司 | Outsourcing concrete nodular cast -iron pipe making devices |
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