CN202812524U - Wear-resistant metal hose for powder feeding pipe - Google Patents
Wear-resistant metal hose for powder feeding pipe Download PDFInfo
- Publication number
- CN202812524U CN202812524U CN 201220475530 CN201220475530U CN202812524U CN 202812524 U CN202812524 U CN 202812524U CN 201220475530 CN201220475530 CN 201220475530 CN 201220475530 U CN201220475530 U CN 201220475530U CN 202812524 U CN202812524 U CN 202812524U
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- Prior art keywords
- wear
- steel
- steel wire
- powder feeding
- resisting
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- Expired - Fee Related
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Abstract
The utility model relates to a wear-resistant metal hose for a powder feeding pipe. An inner metal net and a spiral wear-resistance body are added on the inner sides of an outer metal net and a corrugated pipe, and a spiral spring made of steel wire with high wear resistance is adopted by the spiral wear-resistance body. The wear-resistant metal hose is applied to pipelines for delivery of coal powder or liquid or powdered mediums in such industries as iron and steel, metallurgy and cement, the piping displacement can be compensated flexibly, the wear-resistant metal hose has the advantages of excellent sealing performance and wear resistance, long service life and small flow resistance, and the problems of short service life, powder leakage and environmental pollution caused by the existing ordinary metal hose in the industries can be solved effectively.
Description
Technical field
The utility model relates to the assembling pipe joint in a kind of coal dust, the powdery media feed system, particularly a kind of powder feeding pipes Wear-resisting metal flexible pipe.
Background technique
In Ferrous Metallurgy cement industry pulverized coal conveying or the powdery medium system, owing to affected by medium temperature between pipeline and equipment, equipment and equipment, pipeline and the pipeline to form to expand with heat and contract with cold to need to install to compensate to be connected, generally adopt the connection of common metal flexible pipe.The common metal flexible pipe mainly is made of outer layer metal net, bellows and jointing.Because bellows wears no resistance; common metal flexible pipe service time is long just worn out by powder and produce and leak; cause pipeline dust from flying all around; make the pipeline cisco unity malfunction; change frequent; affect economic benefit and environmental protection, thus the pipeline in Ferrous Metallurgy cement industry pulverized coal conveying or the powdery medium system and equipment, equipment with equipment, pipeline and the wear-resisting problem of the metallic hose during pipeline is connected just become technical key issue.At present, the common metal flexible pipe that is used for Ferrous Metallurgy cement industry pulverized coal conveying or powdery medium system, its inside is that bellows-shaped and wall ratio are thinner not wear-resisting, because the common metal flexible pipe is restricted by structure and material, its abrasive resistance is restricted, the working life of common metal flexible pipe at 20 days with interior even shorter.Common metal flexible pipe interior shape is that bellows-shaped causes flow resistance large in addition, causes pulverized coal conveying or powdery medium system operational effect not good.
Summary of the invention
The technical problems to be solved in the utility model is the deficiency that overcomes existing common metal flexible pipe, provides a kind of wear-resisting property good, long service life, the powder feeding pipes Wear-resisting metal flexible pipe that powder feeding is effective.
The technical solution of the utility model is: the powder feeding pipes Wear-resisting metal flexible pipe, comprise bellows, outer layer metal net and jointing, its improvements are to be provided with the inner layer metal net in the bellows inboard, be provided with the helical abrasion-proof body in inner layer metal net inboard, described helical abrasion-proof body is the helical spring of being made by wear-resisting steel wire.
Described wear-resisting steel wire is a kind of in special steel steel wire, dual phase steel steel wire, low-alloy wear-resistant steel steel wire, Cr-Mo steel steel wire and the Austenitic Stainless Steel steel wire; Described inside and outside layer wire netting is Stainless Steel Cloth; Described jointing is flange, screw thread or rapid pipe joint.
The utility model increases the helical abrasion-proof body at common metal flexible pipe internal layer, the helical abrasion-proof body is the helical spring of being made by steel wires such as special steel, low-alloy wear-resistant steel, Cr-Mo steel, Austenitic Stainless Steels, has the high abrasion ability, at helical spring outer wrapping one deck Stainless Steel Cloth, in order to control the opening degree between the helical spring, make it in certain scope, realize bending deflection and make again coal dust or the powdery medium flows at the helical spring inner chamber.Bellows outside helical spring and inner layer metal net is mainly born sealing and is born interior pressure effect, not directly and coal dust or powdery medium contact, make flowing medium between bellows and helical spring, form static saturation state, the outer layer metal net can be controlled bellows and not extend under interior pressure effect, keeps bending properties.
The utility model working life is for there being 4～8 times of common metal flexible pipe; and bending freely; powdery media flow resistance is little; can guarantee Ferrous Metallurgy cement industry pulverized coal conveying or powdery, the long-term efficient operation of liquid medium system; the number of times that makes pulverized coal conveying or powdery medium system change metallic hose greatly reduces; reduce investment outlay, increase economic efficiency, be conducive to environmental protection.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
Referring to accompanying drawing, the general Wear-resisting metal flexible pipe of powder conveying pipe is provided with helical abrasion-proof body 2, inner layer metal net 3, bellows 4 and outer layer metal net 5 from inside to outside successively, and there is rapid pipe joint 1 at two.Helical abrasion-proof body 2 is helical springs of being made by the Cr-Mo steel steel wire, and bellows 4 is stainless steel, and inside and outside layer wire netting is all Stainless Steel Cloth.
Claims (4)
1. powder feeding pipes Wear-resisting metal flexible pipe, comprise bellows, outer layer metal net and jointing, it is characterized in that being provided with the inner layer metal net in the bellows inboard, be provided with the helical abrasion-proof body in inner layer metal net inboard, described helical abrasion-proof body is the helical spring of being made by wear-resisting steel wire.
2. powder feeding pipes Wear-resisting metal flexible pipe according to claim 1 is characterized in that described wear-resisting steel wire is a kind of in special steel steel wire, dual phase steel steel wire, low-alloy wear-resistant steel steel wire, Cr-Mo steel steel wire and the Austenitic Stainless Steel steel wire.
3. powder feeding pipes Wear-resisting metal flexible pipe according to claim 1 is characterized in that described inside and outside layer wire netting is Stainless Steel Cloth.
4. powder feeding pipes Wear-resisting metal flexible pipe according to claim 1 is characterized in that described jointing is flange, screw thread or rapid pipe joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475530 CN202812524U (en) | 2012-09-18 | 2012-09-18 | Wear-resistant metal hose for powder feeding pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220475530 CN202812524U (en) | 2012-09-18 | 2012-09-18 | Wear-resistant metal hose for powder feeding pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812524U true CN202812524U (en) | 2013-03-20 |
Family
ID=47871394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220475530 Expired - Fee Related CN202812524U (en) | 2012-09-18 | 2012-09-18 | Wear-resistant metal hose for powder feeding pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523811A (en) * | 2015-09-11 | 2017-03-22 | 江苏中远管道设备有限公司 | Wear-resistant metal hose |
| CN109058610A (en) * | 2018-10-30 | 2018-12-21 | 李苏峰 | A kind of PVC pipe |
-
2012
- 2012-09-18 CN CN 201220475530 patent/CN202812524U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523811A (en) * | 2015-09-11 | 2017-03-22 | 江苏中远管道设备有限公司 | Wear-resistant metal hose |
| CN109058610A (en) * | 2018-10-30 | 2018-12-21 | 李苏峰 | A kind of PVC pipe |
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Legal Events
| 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 |
Granted publication date: 20130320 Termination date: 20140918 |
|
| EXPY | Termination of patent right or utility model |