CN1810995A - Tuyere cover of blast furnace - Google Patents
Tuyere cover of blast furnace Download PDFInfo
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- CN1810995A CN1810995A CN 200610001846 CN200610001846A CN1810995A CN 1810995 A CN1810995 A CN 1810995A CN 200610001846 CN200610001846 CN 200610001846 CN 200610001846 A CN200610001846 A CN 200610001846A CN 1810995 A CN1810995 A CN 1810995A
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- cap
- precursor
- steel framework
- dividing plate
- steel
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Abstract
The present invention relates to blast furnace part, and is one kind of tuyere cover. Unlike available tuyere cover, which is made of copper and has high copper consumption and poor inner wall cooling effect, the tuyere cover of the present invention consists of a front body, a back body, a steel frame, a front cap and a back cap. The front body and the front cap are made of copper through extrusion and casting, the back body and the back cap is cast with boiler steel, and the steel frame is welded with common steel plate and provided with several inner and outer water passage partition layers. The tuyere cover of the present invention has lower copper consumption, low cost, raised machining precision, double circulating water passage and long service life.
Description
One, technical field
The present invention relates to the parts on the iron-smelting blast furnace, specifically blast furnace tuyere small sleeve.
Two, background technology
Tuyere cover of blast furnace is made up of large, medium and small three external members, and before being enclosed within for a short time, near burner hearth, working conditions is abominable, and thermal etching is serious, and work-ing life is short, is the consumable accessory on the blast furnace.Existing blast furnace tuyere small sleeve (as shown in Figure 1) is by preceding cap and body two portions welding fabrication, being the fine copper casting forms, body hollow, the outside is provided with the recirculated cooling water passage with preceding cap combination section, body is provided with intake-outlet, up to ante-chamber, discharged by water outlet around water channel along outer wall from ante-chamber by current along the inwall cavity for current, and little cover is carried out heat exchange.Though this product has been obtained certain effect to preceding cap portion cooling,, form the slough easily along the water coolant of inner wall section because of the big cavity structure of body, poor to little cover inwall cooling performance, again because of body is a casting, non-roughness of machining surface, the water route is stopped up in easily fouling, influences cooling performance.And body adopts the fine copper manufacturing, the product cost height, and whole service life is short.
The technology that patent documentation CN9311016416 discloses a kind of " flow-dividing type bimetal welding tuyere and manufacture method ", also just inner core partly adopts steel part, and only be provided with some muscle sheets at front end, form water channel, and the surfaces externally and internally of little cover front end is not suitable for the little cover of blast furnace and adopts again less than good cooling.
Three, summary of the invention:
The object of the present invention is to provide a kind ofly can overcome above-mentioned shortcoming, can reduce production costs, can prolong the product modified version blast furnace tuyere small sleeve in work-ing life again.
The present invention is achieved in that
This blast furnace tuyere small sleeve is made up of body and preceding cap, it is characterized in that body is made up of precursor, back body, steel framework and back cap, preceding cap and precursor are by the pure copper extruding casting moulding, on the back body intake-outlet is arranged, back body and back cap are by the boiler steel casting, steel framework is by the general steel plate welding fabrication, its erection sequence is: at first back cap and precursor are welded on the body of back, then steel framework is enclosed within on the precursor of this weldment, and with afterwards cap and precursor weld respectively, at last with preceding cap sleeve on steel framework, and weld mutually with back cap, precursor.The steel framework of this tuyere small sleeve is made up of preceding dividing plate, ring skeleton, inner channel dividing plate, outer water channel dividing plate, preceding dividing plate is circular, be welded on the ring skeleton, inside and outside water channel dividing plate is multilayer, around shape, be welded on respectively on the surfaces externally and internally of skeleton, little suit timing, steel framework and surperficial close the joining that precursor, preceding cap combine prevent to leak.
Employing the present invention have the following advantages:
1, the present invention has adopted the high-quality steel to substitute fine copper on tuyere small sleeve morely, has reduced production cost.
2, multicompartment welding fabrication has improved each surperficial working accuracy in the little cover cavity greatly, and roughness grade, helps the smooth and easy of recirculated water and flows, and has solved the problem of water channel because of the easy fouling of surface irregularity.
3, be provided with between little cover precursor and the steel framework multilayer around water channel, water coolant flows into from back body water-in, interior between steel framework and precursor around water channel through before the cap ante-chamber, the back from ante-chamber through between steel framework and the preceding cap outer around water channel from after body water outlet outflow, improve the heat exchange level of precursor portions, prolonged little cover whole service life.
Four, description of drawings:
The invention will be further described below in conjunction with accompanying drawing;
Accompanying drawing 1 is a prior art tuyere small sleeve general assembly synoptic diagram;
Accompanying drawing 2 is tuyere small sleeve general assembly synoptic diagram of the present invention;
Accompanying drawing 3 is that figure is cutd open in the exhibition of water outlet channel structure;
Accompanying drawing 4 is steel framework structure master sectional views;
Accompanying drawing 5 is that figure is cutd open in the outer water channel exhibition of steel framework;
Accompanying drawing 6 is that figure is cutd open in the exhibition of steel framework internal layer water channel;
Five, embodiment:
Shown in Fig. 2,3, this blast furnace tuyere small sleeve is made up of body and preceding cap 4, it is characterized in that body is made up of precursor 6, back body 5, steel framework 3 and back cap 2, preceding cap and precursor are by the pure copper extruding casting moulding, intake-outlet 1,7 is arranged on the back body, back body and back cap are by the boiler steel casting, and steel framework is by the general steel plate welding fabrication.Its erection sequence is: at first back cap and precursor are welded on the body of back, then steel framework are enclosed within on the precursor of this weldment, and weld respectively with back cap and precursor, at last with preceding cap sleeve on steel framework, and with after cap, precursor weld mutually.The steel framework 3 of this tuyere small sleeve is made up of preceding dividing plate 10, ring skeleton 8, inner channel dividing plate 11, outer water channel dividing plate 9 shown in Fig. 4,5,6, preceding dividing plate is circular, be welded on the ring skeleton, inside and outside water channel dividing plate is multilayer around shape, is welded on respectively on the surfaces externally and internally of skeleton.Little suit timing, steel framework and surperficial close the joining that precursor, preceding cap combine prevent to leak.
Claims (1)
1, a kind of blast furnace tuyere small sleeve is made up of body and preceding cap, it is characterized in that:
(1) body of this tuyere small sleeve is made up of precursor, back body, steel framework and back cap, preceding cap and precursor are by the pure copper extruding casting moulding, on the back body intake-outlet is arranged, back body and back cap are by the boiler steel casting, and steel framework is by the general steel plate welding fabrication, and its erection sequence is: at first back cap and precursor are welded on the body of back, then steel framework is enclosed within on the precursor of this weldment, and weld respectively with back cap and precursor, at last with preceding cap sleeve on steel framework, and weld mutually with back cap, precursor;
(2) steel framework of this tuyere small sleeve is made up of preceding dividing plate, ring skeleton, inner channel dividing plate, outer water channel dividing plate, preceding dividing plate is circular, be welded on the ring skeleton, inside and outside water channel dividing plate is multilayer, around shape, be welded on respectively on the surfaces externally and internally of skeleton, little suit timing, surperficial close the joining that steel framework matches with precursor, preceding cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610001846 CN1810995A (en) | 2006-01-24 | 2006-01-24 | Tuyere cover of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610001846 CN1810995A (en) | 2006-01-24 | 2006-01-24 | Tuyere cover of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1810995A true CN1810995A (en) | 2006-08-02 |
Family
ID=36844111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610001846 Pending CN1810995A (en) | 2006-01-24 | 2006-01-24 | Tuyere cover of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1810995A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775450A (en) * | 2010-03-05 | 2010-07-14 | 中冶赛迪工程技术股份有限公司 | Oxygen-coal ironmaking blowing device |
| CN102978314A (en) * | 2011-09-07 | 2013-03-20 | 路达(厦门)工业有限公司 | Blast furnace tuyere small sleeve |
| CN103276127A (en) * | 2013-06-14 | 2013-09-04 | 鞍钢集团工程技术有限公司 | Small jacket for blast furnace wind gap |
-
2006
- 2006-01-24 CN CN 200610001846 patent/CN1810995A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775450A (en) * | 2010-03-05 | 2010-07-14 | 中冶赛迪工程技术股份有限公司 | Oxygen-coal ironmaking blowing device |
| CN101775450B (en) * | 2010-03-05 | 2011-07-27 | 中冶赛迪工程技术股份有限公司 | Oxygen-coal ironmaking blowing device |
| CN102978314A (en) * | 2011-09-07 | 2013-03-20 | 路达(厦门)工业有限公司 | Blast furnace tuyere small sleeve |
| CN103276127A (en) * | 2013-06-14 | 2013-09-04 | 鞍钢集团工程技术有限公司 | Small jacket for blast furnace wind gap |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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