CN102888478A - Multi-runner blast furnace tuyere - Google Patents
Multi-runner blast furnace tuyere Download PDFInfo
- Publication number
- CN102888478A CN102888478A CN 201210423226 CN201210423226A CN102888478A CN 102888478 A CN102888478 A CN 102888478A CN 201210423226 CN201210423226 CN 201210423226 CN 201210423226 A CN201210423226 A CN 201210423226A CN 102888478 A CN102888478 A CN 102888478A
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- furnace tuyere
- cavity
- blast
- flow
- blast furnace
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Abstract
The invention relates to a multi-runner blast furnace tuyere, and belongs to the technical field of blast furnace parts. The multi-runner blast furnace tuyere comprises a cross-flow structure and a cavity-type structure, and also comprises a porous structure, wherein the front part of the blast furnace tuyere is the cross-flow structure; the middle part of the blast furnace tuyere is the porous structure; the rear part of the blast furnace tuyere is the cavity-type structure; each of the cross-flow part, the porous part and the cavity part is provided with a set of independent water inlet and water outlet; the tuyeres of the cross-flow part and the cavity part are provided with cooling chambers; the porous part is provided with a return chamber; and the water inlet and water outlet of the tuyeres of the cross-flow part and the cavity part are connected with the cooling chamber. The multi-runner blast furnace tuyere has the advantages that the flow velocity and the cooling intensity of the cooling water are high, and is unlikely to be burnt, so that air can flow out conveniently.
Description
Technical field
The invention belongs to high furnace accessory technical field, particularly a kind of multiple flow passages blast-furnace tuyere.
Background technology
Blast-furnace tuyere adopts cavity type and the tubular structure that combines at present, and wherein cavity type damages easily, and work-ing life is short; Although it is not tubular fragile, long service life, but as long as inlet front end burns out and leaks, blast furnace just must be changed the air port by damping down, and it is complicated to change the air port process, labor intensive and time, impact is produced, and causes production efficiency to reduce, and, the structure of gas backstreaming is not set, is unfavorable for the gas discharge.
Summary of the invention
Deficiency for prior art exists the invention provides a kind of multiple flow passages blast-furnace tuyere.
Technical scheme of the present invention is achieved in that and comprises tubular and the cavity type structure, this blast-furnace tuyere also comprises open grain structure, the blast-furnace tuyere fore portion adopts tubular structure, the blast-furnace tuyere middle portion adopts open grain structure, the cavity type structure is adopted in the blast-furnace tuyere rear section, through-flow part, porous part and cavity partly are equipped with 1 and overlap independently water-in and water outlet, the air port of through-flow part and cavity part is equipped with cooling room, porous part is provided with return passage, and the through-flow part all links to each other with cooling room with water outlet with the water-in in cavity part air port.
Described vesicular structure is to be provided with at least 2 holes on the return passage inwall.
Wherein tubular structure is that through-flow part water-in connects through-flow part cooling room, and through-flow part cooling room is that multi-layer helical is arranged, and through-flow part cooling room connects through-flow part water outlet.
Wherein the cavity type structure is that cavity part water-in connects cavity part cooling room, and cavity part cooling room is individual layer, and cavity part cooling room connects cavity part water outlet.
Advantage of the present invention: this blast-furnace tuyere fore portion adopts tubular structure, the high cooling intensity of water coolant flow velocity is large, be difficult for scaling loss, in case fore portion scaling loss, namely can close the intake-outlet of air port fore portion, middle portion adopts vesicular structure, be convenient to distinguished and admirablely go out, rear section, air port cavity partly is provided with independently intake-outlet, blast furnace can continue as usual to produce, can be because of Tuyere Damage not interim damping down, when treating the blast furnace scheduled overhaul again row change, thereby improved economic benefit that blast furnace produces and mitigation technique personnel and workman's work load greatly.
Description of drawings
Fig. 1 is through-flow cavity type blast-furnace tuyere with double flow passages structural front view of the present invention;
Among the figure: 1, cavity type structure, 2, open grain structure, 3, tubular structure, 4 cavity part cooling rooms, 5 through-flow part cooling rooms.
Embodiment
Detailed construction of the present invention is illustrated with accompanying drawing in conjunction with the embodiments.
This blast-furnace tuyere as shown in Figure 1, comprise tubular and the cavity type structure, this blast-furnace tuyere also comprises open grain structure, the blast-furnace tuyere fore portion adopts tubular structure 3, the blast-furnace tuyere middle portion adopts open grain structure 2, cavity type structure 1 is adopted in the blast-furnace tuyere rear section, through-flow part, porous part and cavity partly are equipped with 1 and overlap independently water-in and water outlet, the air port of through-flow part and cavity part is equipped with cooling room, porous part is provided with return passage, and the through-flow part all links to each other with cooling room with water outlet with the water-in in cavity part air port.
Described vesicular structure is to be provided with at least 2 holes on the return passage inwall.
Wherein tubular structure is that through-flow part water-in connects through-flow part cooling room 5, and through-flow part cooling room 5 is arranged for multi-layer helical, and through-flow part cooling room connects through-flow part water outlet.
Wherein the cavity type structure is that cavity part water-in connects cavity part cooling room 4, and cavity part cooling room is individual layer, and cavity part cooling room 4 connects cavity part water outlet.
Claims (2)
1. multiple flow passages blast-furnace tuyere, comprise tubular and the cavity type structure, it is characterized in that: this blast-furnace tuyere also comprises open grain structure, the blast-furnace tuyere fore portion adopts tubular structure, the blast-furnace tuyere middle portion adopts open grain structure, the cavity type structure is adopted in the blast-furnace tuyere rear section, through-flow part, porous part and cavity partly are equipped with 1 and overlap independently water-in and water outlet, the air port of through-flow part and cavity part is equipped with cooling room, porous part is provided with return passage, and the through-flow part all links to each other with cooling room with water outlet with the water-in in cavity part air port.
2. by multiple flow passages blast-furnace tuyere claimed in claim 1, it is characterized in that described vesicular structure is to be provided with at least 2 holes on the return passage inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210423226 CN102888478A (en) | 2012-10-30 | 2012-10-30 | Multi-runner blast furnace tuyere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210423226 CN102888478A (en) | 2012-10-30 | 2012-10-30 | Multi-runner blast furnace tuyere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102888478A true CN102888478A (en) | 2013-01-23 |
Family
ID=47532160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210423226 Pending CN102888478A (en) | 2012-10-30 | 2012-10-30 | Multi-runner blast furnace tuyere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102888478A (en) |
-
2012
- 2012-10-30 CN CN 201210423226 patent/CN102888478A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |