CN217418735U - Novel tuyere small sleeve - Google Patents
Novel tuyere small sleeve Download PDFInfo
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- CN217418735U CN217418735U CN202221094478.1U CN202221094478U CN217418735U CN 217418735 U CN217418735 U CN 217418735U CN 202221094478 U CN202221094478 U CN 202221094478U CN 217418735 U CN217418735 U CN 217418735U
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Abstract
The utility model discloses a novel tuyere small sleeve, which belongs to the technical field of iron-making blast furnace accessories and comprises a body part and a tapered front end part, wherein the body part and the front end part are provided with a water channel for cooling water circulation, and a fluid director for guiding cooling water is arranged in the water channel; a grid groove is formed in the outer surface of the small-diameter end of the front end part, and a wear-resistant layer is filled in the grid groove in a surfacing mode; the body part and the front end part are both made of copper materials. The utility model improves the wear resistance of the tuyere small sleeve by processing the grid groove on the surface of the small diameter end of the front end part and surfacing and filling the wear-resistant layer in the grid groove; meanwhile, the flow deflectors are arranged in the water channels of the inner cavities of the body part and the front end part to guide the cooling water, and the cooling water is utilized to cool the tuyere small sleeve. Adopt the utility model discloses can effectively also improve its wear resistance when guaranteeing tuyere small sleeve heat transfer performance, prolong its maintenance cycle and life, reduce cost of maintenance.
Description
Technical Field
The utility model belongs to the technical field of iron-making blast furnace accessories, especially, relate to a novel tuyere small sleeve.
Background
As is known, the tuyere small sleeve belongs to a vulnerable part in the production of a blast furnace, and needs to be frequently subjected to the scouring and the impact of high-temperature hot air, slag iron and high-speed circulating incandescent materials due to the severe application environment, the outer surface of the front end of the tuyere needs to bear high-temperature radiation and the convection heat exchange of high-temperature air flow and slag iron, and two damage modes of melting damage and abrasion are mainly adopted. At present, the heat conducting property of the traditional tuyere small sleeve is good but not wear-resistant, and the tuyere small sleeve with a surfacing layer is wear-resistant but poor in heat conducting property, so that the development of the tuyere small sleeve with high heat conducting property and high wear resistance is urgently needed to reduce the replacement frequency and the operation cost of the tuyere small sleeve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel tuyere small sleeve, aiming at solving the technical problem that the heat conductivity and the wear resistance of the tuyere small sleeve in the prior art can not be taken into account.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a novel tuyere small sleeve comprises a body part and a tapered front end part, wherein the body part and the front end part are provided with a water channel for cooling water circulation, and a flow guider for guiding cooling water is arranged in the water channel; the outer surface of the small-diameter end of the front end part is provided with a grid groove, and a wear-resistant layer is filled in the grid groove in a surfacing mode.
Preferably, the front end part comprises a conical inner cylinder wall and an outer cylinder wall, the inner cylinder wall is in arc transition connection with the small-diameter end of the outer cylinder wall, the large-diameter ends of the inner cylinder wall and the outer cylinder wall are connected with the inner wall and the outer wall of the body part, and the fluid director is arranged between the inner cylinder wall and the outer cylinder wall; a water channel for cooling water to flow is formed in an interlayer between the inner cylinder wall and the outer cylinder wall; the grid grooves are formed in the outer conical surface of the small-diameter end of the outer cylinder wall and the outer end face, connected with the outer cylinder wall, of the inner cylinder wall, and the grid grooves are formed in an extrusion molding mode through knurling.
Preferably, the wear-resistant layer is formed by overlaying high-hardness wear-resistant alloy.
Preferably, the fluid director comprises a cylinder body, a front cover and a rear cover, the front cover and the rear cover are respectively arranged at the front end and the rear end of the cylinder body, the cylinder body is arranged between the inner cylinder wall and the outer cylinder wall, and the front cover and the rear cover are both annular plates; the front cover and the rear cover are respectively provided with a water inlet and a water outlet which are opposite to the water inlet and the water outlet of the barrel body, the inner edge and the outer edge of the front cover and the rear cover are respectively connected with the inner barrel wall and the outer barrel wall, and the rear cover is arranged close to one end of the body part; the front cover and the interlayer front side, and the rear cover and the interlayer rear side are provided with spaces for cooling water to flow through.
Preferably, the water outlet on the front cover corresponds to the outer side of the cylinder body, and the water inlet corresponds to the inner side of the cylinder body; the water inlet on the rear cover corresponds to the outer side of the barrel, and the water outlet corresponds to the inner side of the barrel; the water inlet on the front cover and the water outlet on the rear cover are arranged in a staggered manner.
Preferably, the water outlet on the front cover is arranged on the outer edge of the front cover, and the water inlet on the rear cover is arranged on the outer edge of the rear cover; the water outlet and the water inlet on the front cover are arranged in a staggered manner, and the water inlet and the water outlet on the rear cover are arranged in a staggered manner; the water outlet on the front cover and the water inlet on the rear cover are arranged in a staggered manner.
Preferably, a partition plate and a plurality of baffle plates are arranged on the outer surface of the barrel, two ends of the partition plate are respectively connected with the front cover and the rear cover and are arranged between a water outlet on the front cover and a water inlet on the rear cover, the baffle plates are arranged at intervals in a vertically staggered manner, and the partition plate and the baffle plates are arranged along the bus direction of the barrel; the outer side edge of the baffle plate is connected with the inner surface of the outer cylinder wall, and the inner side edge of the baffle plate is connected with the outer surface of the cylinder body and used for enabling cooling water to pass through the space between the cylinder body and the outer cylinder wall in an S shape.
Preferably, the water inlet and the water outlet on the front cover and the rear cover are both arc-shaped openings.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model has the advantages that the grid groove is processed on the surface of the small-diameter end of the front end part, and the wear-resistant layer is filled in the grid groove by surfacing welding, so that the wear-resistant performance of the tuyere small sleeve is improved; meanwhile, the flow deflectors are arranged in the water channels of the inner cavities of the body part and the front end part to guide the cooling water, and the cooling water is utilized to cool the tuyere small sleeve; the body part and the front end part are made of copper materials. Adopt the utility model discloses can effectively also improve its wear resistance when guaranteeing tuyere oversleeve heat transfer performance, prolong its maintenance cycle and life, reduce cost of maintenance.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a novel tuyere small sleeve provided by an embodiment of the invention;
FIG. 2 is a view of the small diameter end of the front end portion of FIG. 1 taken in the direction A;
fig. 3 is an external view of a deflector according to an embodiment of the present invention;
FIG. 4 is a schematic view of the flow of cooling water during use of the new tuyere stock of FIG. 1;
FIG. 5 is a schematic view of the A-side of the front cover in FIG. 4;
FIG. 6 is a schematic view of the side B of the rear cover in FIG. 4;
in the figure: 1-body part, 2-front end part, 21-inner cylinder wall, 22-outer cylinder wall; 3-fluid director, 31-barrel, 32-front cover, 33-rear cover; 4-wear-resistant layer, 5-water channel, 6-water inlet, 7-water outlet, 8-clapboard and 9-baffle plate.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 4, the novel tuyere small sleeve provided by the utility model comprises a body part 1 and a tapered front end part 2, wherein the body part 1 and the front end part are provided with a water channel 5 for cooling water to flow through, and a fluid director 3 for guiding cooling water is arranged in the water channel 5; the outer surface of the small-diameter end of the front end part 2 is provided with a grid groove, a wear-resistant layer 4 is filled in the grid groove in a surfacing mode, and the wear-resistant layer 4 is formed by surfacing of chromium carbide or high-hardness wear-resistant alloy. The body part 1, the inner cylinder wall 21 and the outer cylinder wall 22 are all made of copper materials, and the novel tuyere small sleeve is simple in structure, convenient to process and low in production cost; the body part and the front end part are made of copper materials, the tuyere small sleeve of the structure simultaneously combines high heat conduction of copper and high abrasion resistance of the surfacing layer, the heat transfer performance of the tuyere small sleeve can be guaranteed, the abrasion resistance of the tuyere small sleeve can be improved, the maintenance period and the service life of the tuyere small sleeve can be prolonged, and the maintenance cost and the operation cost can be reduced.
In a specific embodiment of the present invention, as shown in fig. 1 and 2, the front end portion 2 includes a conical inner cylinder wall 21 and an outer cylinder wall 22, the inner cylinder wall 21 is connected with the outer cylinder wall 22 in a circular arc transition manner at the small diameter end, the inner cylinder wall 21 is connected with the inner wall and the outer wall of the body portion 1 at the large diameter end of the outer cylinder wall 22, the fluid director 3 is disposed between the inner cylinder wall 21 and the outer cylinder wall 22, and an interlayer between the inner cylinder wall 21 and the outer cylinder wall 22 forms a water channel 5 for cooling water to flow through; the grid grooves are formed in the outer conical surface of the small-diameter end of the outer cylinder wall 22 and the outer end face of the inner cylinder wall 21 connected with the outer cylinder wall 22, and the grid grooves are formed in an extrusion forming mode through knurling. The fluid director plays the water conservancy diversion effect to cooling water, can make cooling water flow through the intermediate layer water course in order, plays cooling and cools down the effect.
As a preferable scheme, as shown in fig. 1 and 3, the fluid director 3 includes a cylinder 31, a front cover 32 and a rear cover 33, the front cover 32 and the rear cover 33 are respectively disposed at the front end and the rear end of the cylinder 31, the cylinder 31 is disposed between the inner cylinder wall 21 and the outer cylinder wall 22, and both the front cover 32 and the rear cover 33 are annular plates; the front cover 32 and the rear cover 33 are respectively provided with a water inlet 6 and a water outlet 7 which are opposite to the water inlet and outlet of the barrel 31, the inner edge and the outer edge of the front cover 32 and the rear cover 33 are respectively connected with the inner barrel wall 21 and the outer barrel wall 22, and the rear cover 33 is arranged close to one end of the body part 1; spaces for cooling water to flow are arranged on the front side of the front cover 32 and the interlayer 10 and on the rear side of the rear cover 33 and the interlayer 10. The cooling water flows through the inner part and the outer part of the barrel through the water inlets and the water outlets on the front cover and the rear cover, so that the cooling water can cool the front end part.
In a specific embodiment of the present invention, as shown in fig. 5 and 6, the water outlet 7 on the front cover 32 corresponds to the outer side of the cylinder 31, and the water inlet 6 corresponds to the inner side of the cylinder 31; the water inlet 6 on the rear cover 33 corresponds to the outer side of the cylinder 31, and the water outlet 7 corresponds to the inner side of the cylinder 31; the water inlets 6 on the front cover 32 and the water outlets 7 on the rear cover 33 are arranged in a staggered manner. During specific manufacturing, the water outlet 7 on the front cover 32 is arranged on the outer side edge of the front cover 32, and the water inlet 6 on the rear cover 33 is arranged on the outer side edge of the rear cover 33; the water outlets 7 and the water inlets 6 on the front cover 32 are arranged in a staggered manner, and the water inlets 6 and the water outlets 7 on the rear cover 33 are arranged in a staggered manner; the water outlets 7 on the front cover 32 and the water inlets 6 on the rear cover 33 are arranged in a staggered manner. The water inlet 6 and the water outlet 7 on the front cover 32 and the rear cover 33 are both arc-shaped openings, so that cooling water can smoothly pass through the openings. In fig. 4, arrows indicate the flow direction of cooling water inside and outside the cylinder, the cooling water firstly enters the inner space of the fluid director and then enters the outer space from the water outlet of the front cover, and the cooling effect is improved by prolonging the path of the cooling water.
Further optimizing the technical scheme, as shown in fig. 3, a partition plate 8 and a plurality of baffle plates 9 are arranged on the outer surface of the cylinder 31, two ends of the partition plate 8 are respectively connected with the front cover 32 and the rear cover 33 and are arranged between the water outlet 7 on the front cover 32 and the water inlet 6 on the rear cover 33, the plurality of baffle plates 9 are arranged at intervals and in a vertically staggered manner, and the partition plate 8 and the baffle plates 9 are arranged along the bus direction of the cylinder 31; the outer edge of the baffle plate 9 is connected with the inner surface of the outer cylinder wall 22, and the inner edge of the baffle plate 9 is connected with the outer surface of the cylinder 31, so that cooling water passes through the space between the cylinder 31 and the outer cylinder wall 22 in an S shape. By adopting the structure, the flow path of the cooling water in the interlayer can be prolonged, so that the retention time of the cooling water in the tuyere small sleeve is prolonged, and the cooling effect is effectively improved.
During the specific manufacturing, the fluid director 3 is formed by welding steel pipes and steel plates, a grid groove is formed on the outer conical surface of the small-diameter end of the outer cylinder wall 22 and the outer end surface of the inner cylinder wall 21 connected with the outer cylinder wall 22 by adopting a knurling type extrusion process, the fluid director 3 is welded and fixed between the inner cylinder wall 21 and the outer cylinder wall 22, finally the inner cylinder wall 21 and the outer cylinder wall 22 at the front end are respectively welded and fixed with the inner wall and the outer wall of the body part, and finally the wear-resistant layer 4 is formed by surfacing of wear-resistant materials in the grid groove.
To sum up, the utility model has the advantages of simple structure is compact, wear-resisting heat transfer performance is good, utilizes the terminal wearing layer of tip to improve wear resistance before the front end, sets up the divertor simultaneously and can prolong the route of cooling water in the water course to improve the heat transfer performance of tuyere small sleeve, prolong its life with the help of the wearing layer, reduce maintenance and change frequency, reduce maintenance cost and running cost, economic benefits is showing.
In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the one described herein, and those skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed above.
Claims (7)
1. The utility model provides a novel tuyere small sleeve which characterized in that: the cooling water circulation device comprises a body part and a front end part with a taper, wherein the body part and the front end part are provided with water channels for cooling water circulation, and a flow guider for guiding cooling water is arranged in the water channels; a grid groove is formed in the outer surface of the small-diameter end of the front end part, and a wear-resistant layer is filled in the grid groove in a surfacing mode; the body part and the front end part are both made of copper materials; the fluid director comprises a cylinder body, a front cover and a rear cover, the front cover and the rear cover are respectively arranged at the front end and the rear end of the cylinder body, the cylinder body is arranged between the inner cylinder wall and the outer cylinder wall, and the front cover and the rear cover are both annular plates; the front cover and the rear cover are respectively provided with a water inlet and a water outlet which are opposite to the water inlet and the water outlet of the barrel body, the inner edge and the outer edge of the front cover and the rear cover are respectively connected with the inner barrel wall and the outer barrel wall, and the rear cover is arranged close to one end of the body part; the front cover and the interlayer front side, and the rear cover and the interlayer rear side are provided with spaces for cooling water to flow through.
2. The new tuyere stock according to claim 1, wherein: the front end part comprises a conical inner cylinder wall and an outer cylinder wall, the inner cylinder wall is in arc transition connection with the small-diameter end of the outer cylinder wall, the large-diameter ends of the inner cylinder wall and the outer cylinder wall are connected with the inner wall and the outer wall of the body part, and the fluid director is arranged between the inner cylinder wall and the outer cylinder wall; an interlayer between the inner cylinder wall and the outer cylinder wall forms a water channel for cooling water to flow through; the grid grooves are formed in the outer conical surface of the small-diameter end of the outer cylinder wall and the outer end face, connected with the outer cylinder wall, of the inner cylinder wall, and the grid grooves are formed in an extrusion molding mode through knurling.
3. The new tuyere small sleeve according to claim 2, characterized in that: the wear-resistant layer is formed by overlaying high-hardness wear-resistant alloy.
4. The new tuyere small sleeve according to claim 1, characterized in that: the water outlet on the front cover corresponds to the outer side of the cylinder body, and the water inlet on the front cover corresponds to the inner side of the cylinder body; the water inlet on the rear cover corresponds to the outer side of the barrel, and the water outlet corresponds to the inner side of the barrel; the water inlet on the front cover and the water outlet on the rear cover are arranged in a staggered manner.
5. The new tuyere stock of claim 4, wherein: the water outlet on the front cover is arranged on the outer edge of the front cover, and the water inlet on the rear cover is arranged on the outer edge of the rear cover; the water outlet and the water inlet on the front cover are arranged in a staggered manner, and the water inlet and the water outlet on the rear cover are arranged in a staggered manner; the water outlet on the front cover and the water inlet on the rear cover are arranged in a staggered manner.
6. The new tuyere stock of claim 5, wherein: the outer surface of the barrel is provided with a partition plate and a plurality of baffle plates, two ends of the partition plate are respectively connected with the front cover and the rear cover and are arranged between a water outlet on the front cover and a water inlet on the rear cover, the baffle plates are arranged at intervals in a vertically staggered manner, and the partition plate and the baffle plates are arranged along the bus direction of the barrel; the outer side edge of the baffle plate is connected with the inner surface of the outer cylinder wall, and the inner side edge of the baffle plate is connected with the outer surface of the cylinder body and used for enabling cooling water to pass through the space between the cylinder body and the outer cylinder wall in an S shape.
7. The new tuyere stock of claim 6, which is characterized in that: the water inlet and the water outlet on the front cover and the rear cover are arc-shaped openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221094478.1U CN217418735U (en) | 2022-05-09 | 2022-05-09 | Novel tuyere small sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221094478.1U CN217418735U (en) | 2022-05-09 | 2022-05-09 | Novel tuyere small sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217418735U true CN217418735U (en) | 2022-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221094478.1U Active CN217418735U (en) | 2022-05-09 | 2022-05-09 | Novel tuyere small sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217418735U (en) |
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2022
- 2022-05-09 CN CN202221094478.1U patent/CN217418735U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhangjiakou Dahaoheshan Steel Structure Engineering Co.,Ltd. Assignor: HEBEI WANFENG METALLURGICAL SPARE PARTS Co.,Ltd. Contract record no.: X2023980039623 Denomination of utility model: New air vent sleeve Granted publication date: 20220913 License type: Common License Record date: 20230814 |
|
| EE01 | Entry into force of recordation of patent licensing contract |