CN201109653Y - Pipe for pneumatic transporting slag - Google Patents
Pipe for pneumatic transporting slag Download PDFInfo
- Publication number
- CN201109653Y CN201109653Y CNU2007201703298U CN200720170329U CN201109653Y CN 201109653 Y CN201109653 Y CN 201109653Y CN U2007201703298 U CNU2007201703298 U CN U2007201703298U CN 200720170329 U CN200720170329 U CN 200720170329U CN 201109653 Y CN201109653 Y CN 201109653Y
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- Prior art keywords
- pipeline
- fin
- strength
- defeated slag
- slag
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Abstract
The utility model relates to a pipeline used for pneumatic conveying for slag, an inner fin plate is arranged at the inner wall of the pipeline along the axis direction of the pipeline, the inner fin plate is vertical to the pipeline tangent at the position of the inner fin plate, the direct collision and friction between the dry slag and the pipe wall during the conveying process are avoided, the service life of the pipeline is prolonged, and the structure is simple, the processing is easy, and the blockage is not easy to occur.
Description
Technical field
The utility model relates to a kind of pipeline that strength is carried that is used for, and relates in particular to a kind of pipeline that is used for the defeated slag of strength.
Background technology
It is the technology of utilizing air-flow with certain speed and pressure to come the conveying solid substance material in pipeline that strength is carried.Pneumatic Conveying Technology development in the last few years is very fast, being widely used in solid materials such as carrying chemical, chemical fertilizer, cement, lime, Cereals, flour, salt, breeze, molding sand, fly ash, coal dust, cotton, wool, pipe tobacco, tealeaves in departments such as chemical industry, building materials, grain, mining, metallurgy, machinery, power, light textiles at present, also is to use the strength conveying that two pipe pneumatic ash conveying technology are carried out dry ash usually in the ash disposal system in power plant.But now the two pipe pneumatic ash conveying technology that adopt in the power plant only are suitable for the strength conveying of dry ash, and and be not suitable for the conveying of the dried slag of boiler bottom.Mainly be because the particle of dried slag material is big, material is loose, (bulk density of dry ash is roughly at 0.75t/m greatly for density
3, and the bulk density of dried slag is usually greater than 1t/m
3), easily in the duct bottom deposition, be difficult for carrying, and the hardness of dried slag material being big, corner angle are sharp-pointed, to the serious wear of pipeline, easily cause the leakage of pipeline during conveying.Cause leakage for avoiding pipeline to be worn through, need the higher abrasion resistant alloy pipe of use cost usually.In order to overcome the wearing and tearing of material to delivery duct, China utility model patent ZL90208149.7 discloses a kind of spur liner elephant trunk, it is suit one internal lining pipe in the delivery pipe outer tube of grain or granule materials processing, the internal lining pipe inside face is furnished with the iron thorn, its inner and outer pipes curls by light sheet and is welded, this elephant trunk is owing to add the internal lining pipe that has spur, cereal or granular substance at first contact spur in flowing, correspondingly thickeied the elephant trunk wall thickness, reduced the friction force of outer tube wall direct contact material, avoid the direct impact friction tube wall of material, thereby increased the service life of pipeline.But this spur liner elephant trunk is a bilayer sleeve, and complex structure is difficult for processing, and the iron that is furnished with on its internal lining pipe thorn is by stamping forming, is sharp-pointed thorn-like, only is suitable for the conveying of granular material, when carrying dried slag in irregular shape, be easy to collude extension, blocking pipe.
The utility model content
For this reason, it is a kind of simple in structure, wear-resistant that technical problem to be solved in the utility model is to provide, and is applicable to the pipeline of the defeated slag of strength.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of pipeline that is used for the defeated slag of strength, and the conduit axis direction is provided with interior fin in the inwall upper edge of described pipeline, and described interior fin is perpendicular to the tangent line at described pipeline fin place in this.
The above-mentioned pipeline that is used for the defeated slag of strength, described interior fin extends continuously along the conduit axis direction.
The above-mentioned pipeline that is used for the defeated slag of strength, described in fin be arranged at described pipeline and be on partly the inwall 1/2nd below of bottom.
The above-mentioned pipeline that is used for the defeated slag of strength, described interior fin evenly is provided with in the bottom of described inner-walls of duct.
The above-mentioned pipeline that is used for the defeated slag of strength, the density that is provided with of described interior fin is upwards reduced along tube wall gradually by described pipeline bottommost.
The above-mentioned pipeline that is used for the defeated slag of strength, the height b of described interior fin is 1 with the ratio of described pipe diameter D: 8-1: 15.
The above-mentioned pipeline that is used for the defeated slag of strength, the sheet number of described interior fin is the 6-15 sheet.
The above-mentioned pipeline that is used for the defeated slag of strength, described interior fin is for welding or being bolted on the described pipeline.
The above-mentioned pipeline that is used for the defeated slag of strength, described interior fin is by the direct punch forming of particular manufacturing craft when making pipeline.
The above-mentioned pipeline that is used for the defeated slag of strength, described interior fin is served as reasons identical with described pipeline or is made than the material of low level material.
Technique scheme of the present utility model compared with prior art, utility model has the following advantages: (1) pipeline that is used for the defeated slag of strength of the present utility model, be provided with interior fin in the inwall upper edge of described pipeline conduit axis direction perpendicular to described inner-walls of duct, avoided dried slag in course of conveying directly with the tube wall collision, rub, especially avoid direct impact, friction with the comparatively serious duct bottom of wearing and tearing, prolonged the service life of pipeline.(2) pipeline that is used for the defeated slag of strength of the present utility model is a single layer structure, fin welds or is bolted on the inwall of described pipeline in described, even can be by the direct punch forming of particular manufacturing craft when making pipeline, and needn't use the higher abrasion resistant alloy pipe of manufacturing cost, therefore simple in structure, easily manufactured, be easy to processing, cost is low.(3) the ducted interior fin that is used for the defeated slag of strength of the present utility model can not collude and hang dried slag for extending along the conduit axis direction, is difficult for blocking pipe.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to instantiation of the present utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the cross sectional representation that is used for the pipeline of the defeated slag of strength of the present utility model;
Fig. 2 is the vertical section scheme drawing that is used for the pipeline of the defeated slag of strength of the present utility model;
Fig. 3 is used for the cross sectional representation of the pipeline of the defeated slag of strength for of the present utility model another.
The specific embodiment
As shown in Figure 1, the single layer structure of pipeline that is used for the defeated slag of strength of the present utility model for making by the 20# steel, its inwall upper edge conduit axis direction is welded with 13 perpendicular to the interior fin 1 of described pipeline at this place's tangent line, described interior fin 1 is arranged at described inner-walls of duct equably and is on two/part of bottom, fin 1 also is to be made by the 20# steel in described, its height b is 1: 10 with the ratio of described pipe diameter D, because fin 1 in being provided with on the inwall of the pipeline that is used for the defeated slag of strength of the present utility model, thereby avoided the direct and tube wall collision in course of conveying of dried slag, rub, prolonged the service life of pipeline.
As shown in Figure 2, the fin that is used in the defeated slag of strength ducted of the present utility model is for extending along the conduit axis direction, extends to the other end from an end of pipeline, therefore can not collude and hang dried slag, is difficult for blocking pipe.
As shown in Figure 3, in another embodiment, the pipeline that is used for the defeated slag of strength also is the single layer structure of being made by the 20# steel, and its inwall upper edge conduit axis direction is provided with 9 perpendicular to the interior fin 1 of described pipeline at this place's tangent line.Described interior fin 1 is arranged at described inner-walls of duct and is on two/part of bottom, but fin 1 is provided with also inhomogeneous in the bottom of described pipeline in described, because the most serious position of wearing and tearing is the bottom of pipeline in the road use of strength slag-transporting pipe, therefore, fin 1 is provided with the density maximum at the bottommost of described pipeline in described, to reducing gradually, so just can under the lower prerequisite of manufacturing cost, improve the wear resisting property of described pipeline by described pipeline bottommost effectively along tube wall density that is provided with of fin 1 in the above.In the present embodiment, the height b of described interior fin 1 is 1: 8 with the ratio of described pipe diameter D.In described fin 1 make by dead-soft steel and by bolt on described pipeline, sometimes in order to obtain higher Joint strenght, described in fin 1 by after bolt is on described pipeline, again that both are welded together.Under situation about producing in enormous quantities, described interior fin 1 can pass through the direct hot rolling stamped of particular manufacturing craft.
Certainly, described in other embodiments in the quantity of fin 1 also can be any number among 6,15 or the 6-15, its height b also can be 1: 15 with the ratio of described pipe diameter D, perhaps is 1: 8-1: any number in 15.
Fin and described pipeline can be made by the lower material of prices such as ordinary low-carbon steel or 20# steel in described, and needn't use the higher abrasion resistant alloy pipe of manufacturing cost, fin welds or is bolted on the inwall of described pipeline in described, even can be by the direct punch forming of particular manufacturing craft when making pipeline, manufacturing process is simple, and cost is low.
Huaneng Group Yi Min power plant adopts common steel tube to carry out the defeated slag of strength, about operation half a year, check after the time and find that the wearing and tearing of large tracts of land flakey appear in duct bottom, the long groove of 300-500mm, serious position even worn out leakage appear in indivedual pipeline section duct bottom; And when using the pipeline made from common steel tube equally of the present invention to carry out the defeated slag of strength, duct bottom has been avoided slag and pipeline direct contact to greatest extent owing to adopt fin, uses nearly one-year age that pipeline severe wear and leakage problem do not take place.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (10)
1, a kind of pipeline that is used for the defeated slag of strength, it is characterized in that: the conduit axis direction is provided with interior fin in the inwall upper edge of described pipeline, and described interior fin is perpendicular to the tangent line at described pipeline fin place in this.
2, the pipeline that is used for the defeated slag of strength according to claim 1, it is characterized in that: fin extends continuously along the conduit axis direction in described.
3, the pipeline that is used for the defeated slag of strength according to claim 1 is characterized in that: fin is arranged at described pipeline and is on partly the inwall 1/2nd below of bottom in described.
4, the pipeline that is used for the defeated slag of strength according to claim 3, it is characterized in that: fin evenly is provided with in the bottom of described inner-walls of duct in described.
5, the pipeline that is used for the defeated slag of strength according to claim 3, it is characterized in that: the density that is provided with of fin is upwards reduced along tube wall gradually by described pipeline bottommost in described.
6, according to arbitrary described pipeline that is used for the defeated slag of strength among the claim 1-5, it is characterized in that: the height b of fin is 1 with the ratio of described pipe diameter D in described: 8-1: 15.
7, according to arbitrary described pipeline that is used for the defeated slag of strength among the claim 1-5, it is characterized in that: the sheet number of fin is the 6-15 sheet in described.
8, according to arbitrary described pipeline that is used for the defeated slag of strength among the claim 1-5, it is characterized in that: fin is for welding or being bolted on the described pipeline in described.
9, according to arbitrary described pipeline that is used for the defeated slag of strength among the claim 1-5, it is characterized in that: pass through the direct punch forming of particular manufacturing craft when fin is for the manufacturing pipeline in described.
10, according to arbitrary described pipeline that is used for the defeated slag of strength among the claim 1-5, it is characterized in that: described interior fin is served as reasons identical with described pipeline or is made than the material of low level material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201703298U CN201109653Y (en) | 2007-08-22 | 2007-08-22 | Pipe for pneumatic transporting slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201703298U CN201109653Y (en) | 2007-08-22 | 2007-08-22 | Pipe for pneumatic transporting slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201109653Y true CN201109653Y (en) | 2008-09-03 |
Family
ID=39894179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201703298U Expired - Lifetime CN201109653Y (en) | 2007-08-22 | 2007-08-22 | Pipe for pneumatic transporting slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201109653Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530525A (en) * | 2012-02-20 | 2012-07-04 | 北京佳时代包装制品有限责任公司 | Feeder with radial air grid plates |
-
2007
- 2007-08-22 CN CNU2007201703298U patent/CN201109653Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530525A (en) * | 2012-02-20 | 2012-07-04 | 北京佳时代包装制品有限责任公司 | Feeder with radial air grid plates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |
|
| CX01 | Expiry of patent term |