CN103486349A - Nodular cast iron jacking pipe and producing method thereof - Google Patents
Nodular cast iron jacking pipe and producing method thereof Download PDFInfo
- Publication number
- CN103486349A CN103486349A CN201310434425.9A CN201310434425A CN103486349A CN 103486349 A CN103486349 A CN 103486349A CN 201310434425 A CN201310434425 A CN 201310434425A CN 103486349 A CN103486349 A CN 103486349A
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- China
- Prior art keywords
- pipe
- ductile iron
- iron pipe
- cast iron
- flange
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/153—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and concrete with or without reinforcement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a nodular cast iron jacking pipe and a producing method thereof and relates to the technical field of pipe production. The nodular cast iron jacking pipe comprises a jacking pipe flange, a nodular cast iron pipe and a cement layer covering the outer wall of the nodular cast iron pipe, an integral metal framework is arranged in the cement layer, the lower end of the cement layer is flush with the bell surface of the nodular cast iron pipe, the upper end of the cement layer is flush with the upper surfaces of more than three flange positioning blocks on the outer wall of the nodular cast iron pipe, the more than three flange positioning blocks are distributed on the outer wall circumference of the nodular cast iron pipe uniformly at the same horizontal height, and the jacking pipe flange is arranged on the upper surfaces of the flange positioning blocks and welded with the nodular cast iron pipe. According to the nodular cast iron jacking pipe and the producing method thereof, integral pouring is performed on the outer surface of the nodular cast iron pipe, the pouring is in place for one step, the operation is convenient, simple and rapid, and the produced nodular cast iron jacking pipe is high in strength and good in tensile and anti-jacking performances.
Description
Technical field
The present invention relates to the pipeline preparing technical field.
Background technique
Present stage China's Urbanization Construction development that deepens continuously, in state key project financing and Urban Buried Pipeline Network, ductile iron pipe gets a lot of applications, but pipe installation need not allow the area at ground excavation groove through populous or bustling street etc., perhaps due to the restriction that is subject to execution conditions, as crossing highway, railway, river, above ground structure etc., can't or be difficult to the area at ground ditching and laying pipeline.Now common ductile iron pipe just is difficult to reach our requirement, now just can use the push pipe that the ductile iron pipe appearance is built stiffening rib and cement, and push pipe is that ductile iron pipe forms by methods such as outsourcing cement and increase flange and stiffening ribs.Can be by thrustor in work progress, in the situation that do not excavate irrigation canals and ditches, by pipeline, at underground jacking paving section by section, this just need to use the push pipe of a large amount of ductile iron pipes.
Therefore now the push pipe that needs a kind of ductile iron pipe outsourcing cement with and preparation method efficiently and effectively.
Summary of the invention
A kind of method that technical problem to be solved by this invention is to provide push pipe of the spheroidal graphite cast iron for provided underground and prepares quickly and easily this push pipe, this spheroidal graphite cast iron push pipe intensity is high, the resistance to compression impact resistance strong, can bear larger ejection force, and its preparation method technique is convenient and swift, realized that integrated type builds moulding, one-time-reach-place, and built-in metal skeleton and flange positioning block, effectively strengthened the intensity of push pipe.
For addressing the above problem, the technological scheme that the present invention takes is to provide a kind of spheroidal graphite cast iron push pipe, comprise the push pipe flange, ductile iron pipe and the cement layer that wraps in the ductile iron pipe outer wall, described cement layer inside is provided with the metal frame of integrated type, the cement layer lower end flushes with the bellmouth face of ductile iron pipe, upper end flushes with above flange positioning block on the ductile iron pipe outer wall, described flange positioning block is more than 3, and in the same level height, be uniformly distributed on the outer wall circumference of ductile iron pipe, the push pipe flange is located at the upper surface of flange positioning block and welds with ductile iron pipe.
The metal frame of preferred described integrated type is the wire netting of 10mm to 400mm for the mesh spacing be processed into to the wire of 15mm by diameter 2mm, and described metal frame is cylindrical arrangements in the ductile iron pipe periphery.
Preferred described flange positioning block is by location gusset and the welding of ductile iron pipe outer wall of its bottom, the bottom vertical welding of described location gusset and flange positioning block.
The preparation method of described spheroidal graphite cast iron push pipe is characterized in that having following steps: the first step: at the tube wall surrounding uniform welding flange positioning block of ductile iron pipe socket one side; Second step: the tube wall surrounding at ductile iron pipe is arranged metal frame; The 3rd step: the removable body die that is greater than ductile iron pipe with diameter entangles ductile iron pipe, and is placed on base; The 4th step: funnel is placed at the top at ductile iron pipe, and body die is sealed; The 5th step: from top to bottom to the space concreting between ductile iron pipe and body die, build after locating to described flange positioning block and stop building, remove funnel, the protecting cover that will be positioned at the body die top is built; The 6th step: ductile iron pipe and the body die of building are delivered to health pond or the health of health district, after health, body die is removed, then the push pipe flange is soldered on described flange positioning block, and is polished in the cement layer surface.
Preferred described removable body die is combined by the identical parting in two of left and right.
Preferred described flange positioning block is arranged 4 to 36 according to the large I of ductile iron pipe socket caliber.
Preferred described body die is sealed into: the bottom at body die arranges sealing flange, and is provided with felt collar on sealing flange.
The beneficial effect that adopts technique scheme to produce is: what this method for preparing the push pipe of ductile iron pipe outsourcing cement adopted is that the appearance of ductile iron pipe is carried out to one-piece casting, the casting process one-time-reach-place, without the layering split, build, convenient to operation, and the mould sealing is good, guaranteed the intensity of mould in architectural process, the phenomenon that not there will be burst-mode, this spheroidal graphite cast iron push pipe intensity is high, the resistance to compression impact resistance is strong, and built-in metal skeleton and flange positioning block and the location gusset that is located at flange positioning block bottom, effectively strengthened the intensity of push pipe.
The accompanying drawing explanation
The structural representation of Fig. 1 spheroidal graphite cast iron push pipe of the present invention.
View is built in Fig. 2 the present invention preparation.
Fig. 3 is the structural representation of protecting cover.
Wherein, 1, ductile iron pipe, 2, metal frame, 3, protecting cover, 4, cement layer, 5, the push pipe flange, 6, parting, 7, the location gusset, 8, the flange positioning block, 9, fixing bolt, 10, sealing flange, 11, felt collar, 12, funnel.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation: a kind of spheroidal graphite cast iron push pipe, comprise push pipe flange 5, ductile iron pipe 1 and the cement layer 4 that wraps in ductile iron pipe 1 outer wall, cement layer 4 inside are provided with the metal frame 2 of integrated type, cement layer 4 lower ends flush with the bellmouth face of ductile iron pipe 1, upper end flushes with above flange positioning block 8 on ductile iron pipe 1 outer wall, flange positioning block 8 is more than 3 and is uniformly distributed in the same level height on the outer wall circumference of ductile iron pipe 1, push pipe flange 5 is located at the upper surface of flange positioning block 8 and welds with ductile iron pipe 1.The metal frame 2 of described integrated type is the wire netting of 10mm to 400mm for the mesh spacing be processed into to the wire of 15mm by diameter 2mm, and described metal frame 2 is cylindrical arrangements in the periphery of ductile iron pipe 1.Described flange positioning block 8 is by the location gusset 7 and ductile iron pipe 1 outer wall welding, the bottom vertical welding of described location gusset 7 and flange positioning block 8 of its bottom.
The preparation method of this spheroidal graphite cast iron push pipe has following steps: the first step: at the tube wall surrounding uniform welding flange positioning block 8 of ductile iron pipe 1 socket one side; Second step: the tube wall surrounding at ductile iron pipe 1 is arranged metal frame 2; The 3rd step: the removable body die that is greater than ductile iron pipe 1 with diameter entangles ductile iron pipe 1, and is placed on base; The 4th step: funnel 12 is placed at the top at ductile iron pipe 1, and body die is sealed; The 5th step: from top to bottom to the space concreting between ductile iron pipe 1 and body die, build to described flange positioning block 8 and stop building behind place, remove funnel 12, the protecting cover 3 that will be positioned at the body die top is built; The 6th step: ductile iron pipe 1 and the body die of building are delivered to health pond or the health of health district, after health, body die is removed, then push pipe flange 5 is soldered on described flange positioning block 8, and is polished in cement layer 4 surfaces.
Removable body die is combined by two of left and right identical parting 6.Described flange positioning block 8 is arranged 4 to 36 according to the large I of ductile iron pipe 1 socket caliber.Described body die is sealed into: in the bottom of body die, sealing flange 10 is set, and is provided with felt collar 11 on sealing flange 10.
Parting 6 is two isometrical semicircle tubular structures, and its internal diameter equals to prepare the bellmouth external diameter of the ductile iron pipe 1 of push pipe, and is provided with sealing flange 10 in its bottom.Described sealing flange 10 is fixed by screw card and mould bottom, and is provided with felt collar 11 for sealing between sealing flange 10 and body die.Be provided with equally on the top of body die the protecting cover 3 that screw fastens ring.Also be provided with hoisting ring and be provided with the screw thread removal hole in the joint of two partings 6 on parting 6.The staff first is ready to the ductile iron pipe 1 of producing, and processes the push pipe of different size during production according to production requirement.At first the wire of diameter 2-15mm is processed into to the wire netting of spacing 10-400mm, be rolled into metal frame 2, be inserted in outside the ductile iron pipe 1 of each specification, all-in-one-piece location gusset 7 and flange positioning block 8 are processed in the spigot welding that will package again the ductile iron pipe 1 of metal frame 2 in advance, the spigot 4-36 that it is evenly distributed on, then metal frame 2 and location gusset 7 are housed, after the ductile iron pipe 1 of flange positioning block 8 is packed in the body die that is combined of two partings 6 of left and right, hanging hoisting ring with hoisting apparatus holds up mould to fix, again 10 fixations of mold bottom sealing flange, funnel 12 is installed to flange positioning block 8 places.Fill the concrete be stirred in proportion and use the blanking limit ram-jolt of vibrator limit simultaneously in mould by the gap between funnel 12 and flange positioning block 8 again, be filled to concrete behind flange positioning block 8 positions, the lower funnel 12 of dismounting, cover protecting cover 3 and then will fill with concrete mold integral and deliver to health pond or the health of health district.Hang out mould after health and keep flat, dismantle successively lower seal flange 10, then fixedly the clamping bolt 9 of parting 6 is pulled down, and utilizes the dismounting tapped hole to back down body die with bolt, and the semi-finished product push pipe is taken out.Finally push pipe flange 5 and the flange positioning block 8 of establishing are in advance welded together, then polished to repair again in cement layer 4 surfaces and make its smooth surface complete, carry out the spray painting preservative treatment, prepared by the push pipe product.
The beneficial effect that adopts technique scheme to produce is: what this method for preparing the push pipe of ductile iron pipe outsourcing cement adopted is that the appearance of ductile iron pipe is carried out to one-piece casting, the casting process one-time-reach-place, without the layering split, build, convenient to operation, and the mould sealing is good, guaranteed the intensity of mould in architectural process, the phenomenon that not there will be burst-mode, this spheroidal graphite cast iron push pipe intensity is high, the resistance to compression impact resistance is strong, and built-in metal skeleton and flange positioning block and the location gusset that is located at flange positioning block bottom, effectively strengthened the intensity of push pipe.
Claims (7)
1. a spheroidal graphite cast iron push pipe, it is characterized in that comprising push pipe flange (5), ductile iron pipe (1) and the cement layer (4) that wraps in ductile iron pipe (1) outer wall, described cement layer (4) inside is provided with the metal frame (2) of integrated type, described cement layer (4) lower end flushes with the bellmouth face of ductile iron pipe (1), upper end flushes with above flange positioning block (8) on ductile iron pipe (1) outer wall, described flange positioning block (8) is more than 3 and is uniformly distributed in the same level height on the outer wall circumference of ductile iron pipe (1), described push pipe flange (5) is located at the upper surface of flange positioning block (8) and welds with ductile iron pipe (1).
2. spheroidal graphite cast iron push pipe according to claim 1, the metal frame (2) that it is characterized in that described integrated type is the wire netting of 10mm to 400mm for the mesh spacing be processed into to the wire of 15mm by diameter 2mm, and described metal frame (2) is cylindrical arrangements in the periphery of ductile iron pipe (1).
3. spheroidal graphite cast iron push pipe according to claim 1, it is characterized in that described flange positioning block (8) is by the location gusset (7) and the welding of ductile iron pipe (1) outer wall of its bottom, the bottom vertical welding of described location gusset (7) and flange positioning block (8).
4. spheroidal graphite cast iron push pipe as claimed in claim 1, its preparation method is characterised in that to have following steps:
The first step: at the tube wall surrounding uniform welding flange positioning block (8) of ductile iron pipe (1) socket one side;
Second step: the tube wall surrounding at ductile iron pipe (1) is arranged metal frame (2);
The 3rd step: the removable body die that is greater than ductile iron pipe (1) with diameter entangles ductile iron pipe (1), and is placed on base;
The 4th step: funnel (12) is placed at the top at ductile iron pipe (1), and body die is sealed;
The 5th step: from top to bottom to the space concreting between ductile iron pipe (1) and body die, build place to described flange positioning block (8) and stop building, remove funnel (12), the protecting cover (3) that will be positioned at the body die top is built;
The 6th step: ductile iron pipe (1) and the body die of building are delivered to health pond or the health of health district, after health, body die is removed, then push pipe flange (5) is soldered to described flange positioning block (8) upper, and is polished in cement layer (4) surface.
5. the method for preparing the spheroidal graphite cast iron push pipe according to claim 4, is characterized in that described removable body die is combined by two the identical partings in left and right (6).
6. the method for preparing the spheroidal graphite cast iron push pipe according to claim 4, is characterized in that described flange positioning block (8) arranges 4 to 36 according to the large I of ductile iron pipe (1) socket caliber.
7. the method for preparing the spheroidal graphite cast iron push pipe according to claim 4, is characterized in that described being sealed into that body die is carried out: sealing flange (10) is set in the bottom of body die, and is provided with felt collar (11) on sealing flange (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434425.9A CN103486349B (en) | 2013-09-23 | 2013-09-23 | The preparation method of spheroidal graphite cast iron push pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310434425.9A CN103486349B (en) | 2013-09-23 | 2013-09-23 | The preparation method of spheroidal graphite cast iron push pipe |
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| Publication Number | Publication Date |
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| CN103486349A true CN103486349A (en) | 2014-01-01 |
| CN103486349B CN103486349B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310434425.9A Active CN103486349B (en) | 2013-09-23 | 2013-09-23 | The preparation method of spheroidal graphite cast iron push pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565535A (en) * | 2014-12-24 | 2015-04-29 | 安阳钢铁股份有限公司 | Nodular cast iron pipe jacking pipe and manufacturing method thereof |
| CN110005871A (en) * | 2019-04-25 | 2019-07-12 | 芜湖新兴铸管有限责任公司 | Push pipe gusset and flange welding structure and welding method |
| CN112792979A (en) * | 2020-12-30 | 2021-05-14 | 新兴铸管股份有限公司 | Pipe jacking pouring die |
| CN116753360A (en) * | 2023-08-11 | 2023-09-15 | 江苏日升电力机械有限公司 | Connecting device for top pipe of spheroidal graphite cast iron pipe |
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| US5097871A (en) * | 1989-02-10 | 1992-03-24 | Kurimoto, Ltd. | Pipe for pipe jacking |
| KR20070014224A (en) * | 2007-01-12 | 2007-01-31 | 정태화 | Resin-lined cast iron pipe(s) and manufacturing method therefor |
| CN2872032Y (en) * | 2005-12-31 | 2007-02-21 | 陕西竞业玻璃钢有限公司 | Glass fibre reinforced plastic sanding top tube |
| CN202302361U (en) * | 2011-11-03 | 2012-07-04 | 崇州市岷江塑胶有限公司铸管分公司 | Cement mortar ceramic inner liner composite cast iron pipe |
| CN102620064A (en) * | 2012-03-28 | 2012-08-01 | 湖南振辉管业有限公司 | Full steel framework enhanced plug type composite pipe and manufacture technology thereof |
| CN102777706A (en) * | 2012-08-10 | 2012-11-14 | 新兴铸管股份有限公司 | Encased concrete nodular cast iron pipe |
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2013
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5097871A (en) * | 1989-02-10 | 1992-03-24 | Kurimoto, Ltd. | Pipe for pipe jacking |
| CN2872032Y (en) * | 2005-12-31 | 2007-02-21 | 陕西竞业玻璃钢有限公司 | Glass fibre reinforced plastic sanding top tube |
| KR20070014224A (en) * | 2007-01-12 | 2007-01-31 | 정태화 | Resin-lined cast iron pipe(s) and manufacturing method therefor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565535A (en) * | 2014-12-24 | 2015-04-29 | 安阳钢铁股份有限公司 | Nodular cast iron pipe jacking pipe and manufacturing method thereof |
| CN110005871A (en) * | 2019-04-25 | 2019-07-12 | 芜湖新兴铸管有限责任公司 | Push pipe gusset and flange welding structure and welding method |
| CN112792979A (en) * | 2020-12-30 | 2021-05-14 | 新兴铸管股份有限公司 | Pipe jacking pouring die |
| CN112792979B (en) * | 2020-12-30 | 2022-03-04 | 新兴铸管股份有限公司 | Pipe jacking pouring die |
| CN116753360A (en) * | 2023-08-11 | 2023-09-15 | 江苏日升电力机械有限公司 | Connecting device for top pipe of spheroidal graphite cast iron pipe |
| CN116753360B (en) * | 2023-08-11 | 2023-10-20 | 江苏日升电力机械有限公司 | Connecting device for top pipe of spheroidal graphite cast iron pipe |
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| Publication number | Publication date |
|---|---|
| CN103486349B (en) | 2015-10-28 |
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