CN203393175U - Round cloth sieve with wearproof protective cover at top of blast furnace - Google Patents
Round cloth sieve with wearproof protective cover at top of blast furnace Download PDFInfo
- Publication number
- CN203393175U CN203393175U CN201320470412.2U CN201320470412U CN203393175U CN 203393175 U CN203393175 U CN 203393175U CN 201320470412 U CN201320470412 U CN 201320470412U CN 203393175 U CN203393175 U CN 203393175U
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- sieve
- wear
- resisting
- cloth sieve
- wearproof
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Abstract
The utility model discloses a round cloth sieve with a wearproof protective cover at the top of a blast furnace. The round cloth sieve is formed by cross welding of longitudinal and transverse strip steel plates which are arranged at equal distance, and is characterized in that a wearproof sieve identical to the shape of the round cloth sieve is covered on the upper side of the round cloth sieve, the wearproof meshes of the wearproof sieve and the meshes of the round cloth sieve are aligned up and down, wearproof frustums are arranged at cross points of wearproof longitudinal ribs and wearproof transverse ribs, and the wearproof frustums are covered on the upper side of the welded joint of the round cloth sieve. According to the round cloth sieve with the wearproof protective cover at the top of the blast furnace, as the wearproof sieve is covered on the upper side of the round cloth sieve, when raw materials are fed into the blast furnace, the raw materials firstly strike the wearproof sieve and then fall into the blast furnace through the meshes of the round cloth sieve, and therefore, the raw materials are prevented from wearing the round cloth sieve, and the service life of the round cloth sieve is prolonged; the round cloth sieve is easy to replace and materials can be distributed uniformly, so that the production efficiency is improved. The round cloth sieve is very suitable for large volume blast furnaces.
Description
Technical field
The utility model relates to the improvement of the circular Cloth sieve of a kind of blast furnace roof, specifically the circular Cloth sieve of a kind of blast furnace roof with wear Protection cover.
Background technology
The blast furnace using at present, its furnace roof is equipped with circular Cloth sieve, and in blast furnace production process, raw material (coke, ore, agglomerate, pelletizing etc.) all will arrive blast furnace roof by belt-conveying, after circular Cloth sieve screening evenly by blast furnace roof, buffering falls in blast furnace.
The circular Cloth sieve using at present, is that the strip steel plate by longitudinal and transverse arrangement is equidistantly welded, and its sieve aperture be square, and the place, point of crossing of longitudinal and transverse strip steel plate is soldered.The deficiency of this circular Cloth sieve is: because being adopts strip steel plate to be welded, strip steel plate and soldered place wear resisting property are poor, so, when dropping into raw material in blast furnace, large content of starting materials produces wearing and tearing to the strip steel plate of circular Cloth sieve and soldered, can cause the bulk strength of circular Cloth sieve to reduce, even make weld cracking, cause the accident; Also affected the work-ing life of circular Cloth sieve, change or keep in repair circular Cloth sieve and all can bring about great losses to producing simultaneously.Generally, for the little blast furnace of volume, can adopt build-up wear-resistant material to improve wear resisting property, to reduce the wearing and tearing of raw material to circular Cloth sieve; But for capacious blast furnace, the increase at double of the every batch of raw material ratio small furnace, simple bead-welding technology is difficult to realize the wear-resisting requirement of circular Cloth sieve.Known by retrieving, have not yet to see the report that increases wear Protection cover at the upside of circular Cloth sieve.
Summary of the invention
The purpose of this utility model is to provide a kind of wear resisting property that can improve circular Cloth sieve, extend the work-ing life of circular Cloth sieve and can improve the circular Cloth sieve of the blast furnace roof with wear Protection cover of productivity effect.
In order to reach above object, the technical scheme that the utility model adopts is: the circular Cloth sieve of this blast furnace roof with wear Protection cover, comprise the circular Cloth sieve being formed by the longitudinal strip steel plate of equidistantly arranging and the equidistant horizontal strip steel plate cross weld of arranging, its sieve aperture is square, place, point of crossing is soldered, it is characterized in that: the upside of described circular Cloth sieve covers the upper Wear-resistant sieve consistent with circular Cloth sieve shape, the wear-resisting sieve aperture of Wear-resistant sieve is also square, its length of side equates with the length of side of the sieve aperture of circular Cloth sieve, on the wear-resisting sieve aperture of Wear-resistant sieve and the sieve aperture of circular Cloth sieve, lower alignment, the wear-resisting longitudinal rib of described Wear-resistant sieve and wear-resisting horizontal bar cover respectively the longitudinal strip steel plate of equidistant arrangement and the upside of the equidistant horizontal strip steel plate of arranging of circular Cloth sieve, the place, point of crossing of wear-resisting longitudinal rib and wear-resisting horizontal bar is wear-resisting frustum, and wear-resisting frustum covers the upside of the soldered of circular Cloth sieve.
The utility model is also implemented by following measure: the diapire of described wear-resisting frustum is provided with " ten " font groove, the width of the longitudinal strip steel plate that the width of " ten " font groove is routine with the equidistant row of circular Cloth sieve and the horizontal strip steel plate of equidistant row's example is consistent, and the horizontal strip steel plate clamp of the longitudinal strip steel plate that equidistant row is routine and equidistant row's example enters in " ten " font groove; The upper end of wear-resisting frustum is ellipsoid head.
The height of described wear-resisting frustum is 50-100mm, and the cone bottom diameter of wear-resisting frustum is 50-100mm.
The wear-resisting longitudinal rib of described Wear-resistant sieve and wear-resisting horizontal bar and wear-resisting frustum are that high-abrasive material is cast into an integral body.
The beneficial effects of the utility model are: the circular Cloth sieve using with current blast furnace roof is compared, because the upside at circular Cloth sieve has covered Wear-resistant sieve, so, when throwing raw materials in blast furnace, raw material first impacts Wear-resistant sieve, sieve aperture by circular Cloth sieve falls in blast furnace again, thereby has avoided the wearing and tearing of raw material to circular Cloth sieve, the work-ing life of having improved circular Cloth sieve; Because the wear-resisting frustum diapire of Wear-resistant sieve is arranged on circular Cloth sieve by " ten " font groove, so, if Wear-resistant sieve needs to change, can directly take off, change newly, so change fast, do not affect production, thereby improved productivity effect; In addition, because the top of wear-resisting frustum is elliposoidal, can improve the distribution dynamics to raw material, easier uniform distribution.Be specially adapted to capacious blast furnace.
Accompanying drawing explanation
Fig. 1 is structure schematic side view of the present utility model.
Fig. 2 is structure schematic top plan view of the present utility model.
Fig. 3 is Wear-resistant sieve structure schematic side view of the present utility model.
Fig. 4 is Wear-resistant sieve structure elevational schematic view of the present utility model.
In figure: 1, circular Cloth sieve; 2, the equidistant horizontal strip steel plate of arranging; 3, the equidistant longitudinal strip steel plate of arranging; 4, sieve aperture; 5, soldered; 6, Wear-resistant sieve; 61, wear-resisting sieve aperture; 62, wear-resisting longitudinal rib; 63, wear-resisting horizontal bar; 64, wear-resisting frustum; 65, " ten " font groove.
Embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, make the utility model.The circular Cloth sieve of this blast furnace roof with wear Protection cover, comprise the circular Cloth sieve 1 being formed by the longitudinal strip steel plate 3 of equidistantly arranging and equidistant horizontal strip steel plate 2 cross welds of arranging, its sieve aperture 4 is square, place, point of crossing is soldered 5, it is characterized in that: the upside of described circular Cloth sieve 1 covers the upper Wear-resistant sieve 6 consistent with circular Cloth sieve 1 shape, the wear-resisting sieve aperture 61 of Wear-resistant sieve 6 is also square, its length of side equates with the length of side of the sieve aperture 4 of circular Cloth sieve 1, the upper and lower alignment of sieve aperture 4 of the wear-resisting sieve aperture 61 of Wear-resistant sieve 6 and circular Cloth sieve 3; The wear-resisting longitudinal rib 62 of described Wear-resistant sieve 6 and wear-resisting horizontal bar 63 cover respectively the longitudinal strip steel plate 3 of equidistant arrangement and the upside of the equidistant horizontal strip steel plate 2 of arranging of circular Cloth sieve 1, wear-resisting longitudinal rib 62 and place, wear-resisting horizontal bar 63 point of crossing are wear-resisting frustum 64, wear-resisting frustum 64 covers the upside of the soldered 5 of circular Cloth sieve 1, like this, when throwing raw materials in blast furnace, raw material first impacts Wear-resistant sieve 6, sieve aperture 4 by circular Cloth sieve 1 falls in blast furnace again, and this has just been avoided the wearing and tearing of raw material to circular Cloth sieve 1.
As improvement of the present utility model: the diapire of described wear-resisting frustum 64 is provided with " ten " font groove 65, the width of the horizontal strip steel plate 2 of the longitudinal strip steel plate 3 that the width of " ten " font groove 65 is routine with the equidistant row of circular Cloth sieve 1 and equidistant row's example is consistent, the horizontal strip steel plate 2 of the longitudinal strip steel plate 3 that equidistant row is routine and equidistant row's example snaps in " ten " font groove 65, can be convenient to location and installation fast and accurately like this; Wear-resisting frustum 64 upper end is ellipsoid head, to be conducive to distribute raw material.
The height of described wear-resisting frustum 64 is 50-100mm, and the cone bottom diameter of wear-resisting frustum 64 is 50-100mm.
The wear-resisting longitudinal rib 62 of described Wear-resistant sieve 6 and wear-resisting horizontal bar 63 and wear-resisting frustum 64 are cast into an integral body for high-abrasive material.
Claims (3)
1. with the circular Cloth sieve of the blast furnace roof of wear Protection cover, comprise the circular Cloth sieve (1) being formed by the longitudinal strip steel plate (3) of equidistantly arranging and equidistant horizontal strip steel plate (2) cross weld of arranging, its sieve aperture (4) is square, place, point of crossing is soldered (5), it is characterized in that: the upside of described circular Cloth sieve (1) covers the upper Wear-resistant sieve (6) consistent with circular Cloth sieve (1) shape, the wear-resisting sieve aperture (61) of Wear-resistant sieve (6) is also square, its length of side equates with the length of side of the sieve aperture (4) of circular Cloth sieve (1), on the wear-resisting sieve aperture (61) of Wear-resistant sieve (6) and the sieve aperture (4) of circular Cloth sieve (3), lower alignment, the wear-resisting longitudinal rib (62) of described Wear-resistant sieve (6) and wear-resisting horizontal bar (63) cover respectively the longitudinal strip steel plate (3) of equidistant arrangement and the upside of the equidistant horizontal strip steel plate (2) of arranging of circular Cloth sieve (1), the place, point of crossing of wear-resisting longitudinal rib (62) and wear-resisting horizontal bar (63) is wear-resisting frustum (64), and wear-resisting frustum (64) covers the upside of the soldered (5) of circular Cloth sieve (1).
2. the circular Cloth sieve of the blast furnace roof with wear Protection cover according to claim 1, it is characterized in that: the diapire of described wear-resisting frustum (64) is provided with " ten " font groove (65), the width of the horizontal strip steel plate (2) of the longitudinal strip steel plate (3) that the width of " ten " font groove (65) is routine with the equidistant row of circular Cloth sieve (1) and equidistant row's example is consistent, and the horizontal strip steel plate (2) of the longitudinal strip steel plate (3) that equidistant row is routine and equidistant row's example snaps in " ten " font groove (65).
3. the circular Cloth sieve of the blast furnace roof with wear Protection cover according to claim 1 and 2, is characterized in that: the height of described described wear-resisting frustum (64) is 50-100mm, and the cone bottom diameter of wear-resisting frustum (64) is 50-100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470412.2U CN203393175U (en) | 2013-08-05 | 2013-08-05 | Round cloth sieve with wearproof protective cover at top of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320470412.2U CN203393175U (en) | 2013-08-05 | 2013-08-05 | Round cloth sieve with wearproof protective cover at top of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203393175U true CN203393175U (en) | 2014-01-15 |
Family
ID=49904721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320470412.2U Expired - Fee Related CN203393175U (en) | 2013-08-05 | 2013-08-05 | Round cloth sieve with wearproof protective cover at top of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203393175U (en) |
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2013
- 2013-08-05 CN CN201320470412.2U patent/CN203393175U/en not_active Expired - Fee Related
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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: 20140115 Termination date: 20150805 |
|
| EXPY | Termination of patent right or utility model |