CN202402828U - Coal mine underground composite steel pipe with outer polyethylene coating and inner epoxy resin coating - Google Patents
Coal mine underground composite steel pipe with outer polyethylene coating and inner epoxy resin coating Download PDFInfo
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- CN202402828U CN202402828U CN2012200302347U CN201220030234U CN202402828U CN 202402828 U CN202402828 U CN 202402828U CN 2012200302347 U CN2012200302347 U CN 2012200302347U CN 201220030234 U CN201220030234 U CN 201220030234U CN 202402828 U CN202402828 U CN 202402828U
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- steel pipe
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- polyethylene
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 51
- 239000010959 steel Substances 0.000 title claims abstract description 51
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 26
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 26
- -1 polyethylene Polymers 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000000576 coating method Methods 0.000 title claims abstract description 22
- 239000011248 coating agent Substances 0.000 title claims abstract description 21
- 239000003822 epoxy resin Substances 0.000 title abstract description 16
- 229920000647 polyepoxide Polymers 0.000 title abstract description 16
- 239000003245 coal Substances 0.000 title abstract description 8
- 229920006334 epoxy coating Polymers 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Abstract
本实用新型涉及一种煤矿井下用外聚乙烯内环氧树脂涂层复合钢管，包括有钢管本体，所述的钢管本体的钢管外壁设有聚乙烯涂层，钢管内壁设有环氧树脂涂层。本实用新型的有益效果在于：在煤矿井下用复合钢管的外壁涂覆聚乙烯，在内壁涂覆环氧树脂，使矿井下用复合钢管具有强度高、耐腐蚀、抗静电、阻燃性等优点，加强了钢管的机械强度，对冲击、弯曲等外来影响具有更强的承受能力，钢管不结垢、不结瘤，且内壁和外壁光滑摩擦系数小，使得流体的阻力小，便于流动。
The utility model relates to a composite steel pipe with outer polyethylene and inner epoxy resin coating for underground coal mines. . The beneficial effect of the utility model is that: the outer wall of the composite steel pipe is coated with polyethylene, and the inner wall is coated with epoxy resin, so that the composite steel pipe used in the mine has the advantages of high strength, corrosion resistance, antistatic, flame retardancy, etc. , the mechanical strength of the steel pipe is enhanced, and it has a stronger ability to withstand external influences such as impact and bending.
Description
技术领域 technical field
本实用新型涉及一种钢管，尤其涉及一种煤矿井下用外聚乙烯内环氧树脂涂层复合钢管。The utility model relates to a steel pipe, in particular to a composite steel pipe with outer polyethylene and inner epoxy resin coating for underground coal mines.
背景技术 Background technique
目前钢管本身防阻燃，机械性能较高，但防腐蚀效果并不好。因此，近年来，市场上出现了以钢管为基管，经过对钢管的内外表面进行特殊工艺处理，在钢管的内外壁涂敷聚乙烯粉料或环氧树脂做为防腐涂层的复合管材。这些复合管材的使用大大提高了煤矿安全生产，延长了管道使用寿命，具备耐腐蚀、抗冲击、抗阻然等特性。然而，这种单一的聚乙烯涂层复合钢管和环氧树脂涂层复合钢管，在煤矿井下条件较为恶劣，使用标准较高的矿井中使用仍显得不够完美。聚乙烯涂层复合钢管涂层韧性好，钢管机械强度高，对冲击弯曲等外来影响有很强的承受能力，但做为供排水管道使用时吸附力较环氧涂层差，而环氧树脂涂层比较硬，吸附力好，适用温度也比聚乙烯的高，但耐候性却不如聚乙烯涂层复合钢管。At present, the steel pipe itself is flame-retardant and has high mechanical properties, but the anti-corrosion effect is not good. Therefore, in recent years, there have been composite pipes on the market that use steel pipes as the base pipe, after special processing of the inner and outer surfaces of the steel pipes, and coating polyethylene powder or epoxy resin on the inner and outer walls of the steel pipes as anti-corrosion coatings. The use of these composite pipes greatly improves the safety of coal mine production, prolongs the service life of pipes, and has the characteristics of corrosion resistance, impact resistance, and natural resistance. However, this single polyethylene-coated composite steel pipe and epoxy resin-coated composite steel pipe are relatively harsh underground conditions in coal mines, and it still seems not perfect to use them in mines with higher standards. Polyethylene-coated composite steel pipe has good coating toughness, high mechanical strength of steel pipe, and strong ability to withstand external influences such as impact bending, but when used as a water supply and drainage pipe, its adsorption force is worse than that of epoxy coating, while epoxy resin The coating is relatively hard, has good adsorption force, and the applicable temperature is higher than that of polyethylene, but its weather resistance is not as good as that of polyethylene-coated composite steel pipes.
实用新型内容 Utility model content
本实用新型所要解决的技术问题是：提供一种具有阻燃、防腐蚀、抗静电功能的煤矿井下用外聚乙烯内环氧树脂涂层复合钢管。The technical problem to be solved by the utility model is: to provide a composite steel pipe with outer polyethylene inner epoxy resin coating for coal mine underground with functions of flame retardancy, anticorrosion and antistatic.
本实用新型为解决上述提出的问题所采用的技术方案是：The technical solution adopted by the utility model for solving the above-mentioned problem is:
一种煤矿井下用外聚乙烯内环氧树脂涂层复合钢管，包括有钢管本体，所述的钢管本体的钢管外壁设有聚乙烯涂层，钢管内壁设有环氧树脂涂层。A composite steel pipe with external polyethylene and internal epoxy resin coating for underground coal mines, comprising a steel pipe body, the outer wall of the steel pipe body is provided with polyethylene coating, and the inner wall of the steel pipe is provided with epoxy resin coating.
按照上述方案，所述的聚乙烯涂层的厚度为0.4-0.8mm。According to the above scheme, the thickness of the polyethylene coating is 0.4-0.8mm.
按照上述方案，所述的环氧树脂涂层的厚度为0.3-0.6mm。According to the above scheme, the thickness of the epoxy resin coating is 0.3-0.6mm.
按照上述方案，所述的钢管本体的厚度为1.0-18mm。According to the above solution, the thickness of the steel pipe body is 1.0-18mm.
按照上述方案，所述的钢管本体的长度为4-6m。According to the above solution, the length of the steel pipe body is 4-6m.
本实用新型的有益效果在于：在煤矿井下用复合钢管的外壁涂覆聚乙烯，在内壁涂覆环氧树脂，使矿井下用复合钢管具有强度高、耐腐蚀、抗静电、阻燃性等优点，加强了钢管的机械强度，对冲击、弯曲等外来影响具有更强的承受能力，钢管不结垢、不结瘤，且内壁和外壁光滑摩擦系数小，使得流体的阻力小，便于流动。The beneficial effect of the utility model is that: the outer wall of the composite steel pipe is coated with polyethylene, and the inner wall is coated with epoxy resin, so that the composite steel pipe used in the mine has the advantages of high strength, corrosion resistance, antistatic, flame retardancy, etc. , the mechanical strength of the steel pipe is enhanced, and it has a stronger ability to withstand external influences such as impact and bending.
附图说明 Description of drawings
图1是本实用新型的结构截面示意图。Fig. 1 is a schematic cross-sectional view of the utility model.
其中，1-钢管本体，2-钢管外壁，3-钢管内壁，4-聚乙烯涂层，5-环氧树脂涂层。Among them, 1-steel pipe body, 2-steel pipe outer wall, 3-steel pipe inner wall, 4-polyethylene coating, 5-epoxy resin coating.
具体实施方式 Detailed ways
下面结合附图进一步说明本实用新型的实施例。Further illustrate the embodiment of the present utility model below in conjunction with accompanying drawing.
参见图1，本具体实施方式所述的一种煤矿井下用外聚乙烯内环氧树脂涂层复合钢管，包括有钢管本体，所述的钢管本体的钢管外壁设有聚乙烯涂层，钢管内壁设有环氧树脂涂层。Referring to Fig. 1 , a kind of composite steel pipe with outer polyethylene and inner epoxy resin coating for coal mine described in the specific embodiment includes a steel pipe body, the outer wall of the steel pipe body of the steel pipe body is provided with a polyethylene coating, and the inner wall of the steel pipe is Features epoxy coating.
本具体实施方式，所述的聚乙烯涂层的厚度为0.5mm。In this specific embodiment, the thickness of the polyethylene coating is 0.5 mm.
本具体实施方式，所述的环氧树脂涂层的厚度为0.4mm。In this specific embodiment, the thickness of the epoxy resin coating is 0.4 mm.
本具体实施方式，所述的钢管本体的厚度为15mm。In this specific embodiment, the thickness of the steel pipe body is 15mm.
本具体实施方式，所述的钢管本体的长度为5m。In this specific embodiment, the length of the steel pipe body is 5m.
本具体实施方式的有益效果在于：在煤矿井下用复合钢管的外壁涂覆聚乙烯，在内壁涂覆环氧树脂，使矿井下用复合钢管具有强度高、耐腐蚀、抗静电、阻燃性等优点，加强了钢管的机械强度，对冲击、弯曲等外来影响具有更强的承受能力，钢管不结垢、不结瘤，且内壁和外壁光滑摩擦系数小，使得流体的阻力小，便于流动。The beneficial effect of this specific embodiment is that: the outer wall of the composite steel pipe is coated with polyethylene, and the inner wall is coated with epoxy resin, so that the composite steel pipe used in the mine has high strength, corrosion resistance, antistatic, flame retardancy, etc. Advantages, the mechanical strength of the steel pipe is enhanced, and it has a stronger ability to withstand external influences such as impact and bending. The steel pipe does not scale or nod, and the smooth friction coefficient of the inner and outer walls makes the fluid resistance small and easy to flow.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200302347U CN202402828U (en) | 2012-01-08 | 2012-01-08 | Coal mine underground composite steel pipe with outer polyethylene coating and inner epoxy resin coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200302347U CN202402828U (en) | 2012-01-08 | 2012-01-08 | Coal mine underground composite steel pipe with outer polyethylene coating and inner epoxy resin coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402828U true CN202402828U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200302347U Expired - Fee Related CN202402828U (en) | 2012-01-08 | 2012-01-08 | Coal mine underground composite steel pipe with outer polyethylene coating and inner epoxy resin coating |
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| Country | Link |
|---|---|
| CN (1) | CN202402828U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927802A (en) * | 2016-06-24 | 2016-09-07 | 广州市华粤管业有限公司 | Inside-outside plastic-coated steel pipe and manufacturing process thereof |
| CN106090462A (en) * | 2016-08-17 | 2016-11-09 | 河北派润建筑工程有限公司 | Resinous coat steel strand wires strengthen steel pipe and pipeline |
| CN117655660A (en) * | 2022-08-30 | 2024-03-08 | 中国石油天然气集团有限公司 | A processing method for internal drag reduction coiled pipe |
-
2012
- 2012-01-08 CN CN2012200302347U patent/CN202402828U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927802A (en) * | 2016-06-24 | 2016-09-07 | 广州市华粤管业有限公司 | Inside-outside plastic-coated steel pipe and manufacturing process thereof |
| CN106090462A (en) * | 2016-08-17 | 2016-11-09 | 河北派润建筑工程有限公司 | Resinous coat steel strand wires strengthen steel pipe and pipeline |
| CN117655660A (en) * | 2022-08-30 | 2024-03-08 | 中国石油天然气集团有限公司 | A processing method for internal drag reduction coiled pipe |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20130108 |