CN204981924U - Iron mouthful device is opened to blast furnace - Google Patents
Iron mouthful device is opened to blast furnace Download PDFInfo
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- CN204981924U CN204981924U CN201520751181.1U CN201520751181U CN204981924U CN 204981924 U CN204981924 U CN 204981924U CN 201520751181 U CN201520751181 U CN 201520751181U CN 204981924 U CN204981924 U CN 204981924U
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- drilling rod
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- blast furnace
- iron
- adapter sleeve
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Abstract
The utility model discloses an iron mouthful device is opened to blast furnace relates to melting equipment technical field, including adapter sleeve, drilling rod and the drill bit that connects gradually, its characterized in that: the outline of drilling rod cross section is the polygon, insert respectively at the both ends of drilling rod the adapter sleeve with the drill bit in -connection is fixed. The utility model is used for iron mouthful is opened in blast furnace stokehold tapping machine's atomizing, its solved present open iron mouthful device exist can not once only bore out that iron mouthful, drilling rod easily block in iron mouth passageway, between drilling rod and the drill bit or the yielding or even cracked problem in connection position between adapter sleeve and the drilling rod.
Description
Technical field
The utility model relates to smelting equipment technical field, especially a kind of atomization tapping outlet device for blast furnace front tapping machine.
Background technology
In recent years, domestic iron and steel production capacity is seriously superfluous, and price of steel product is in decline state for a long time, and enterprise will realize profit, must continue to optimize every technico-economical comparison, reduces unit product production cost, improves the market competitiveness of enterprise product.Blast furnace ironmaking is produced and will be obtained good technico-economical comparison by strengthening smelting, the direct motion steady in a long-term of maintenance conditions of blast furnace, and stokehold must go out clean slag iron in time, keeping slag iron in cupola well to be in low fluid level condition for a long time, creating favorable conditions for producing in stove.
Existing iron opening equipment of blast furnace comprises the adapter sleeve, drilling rod and the drill bit that connect successively, and drilling rod cross section is circular, taphole drilling machine, adapter sleeve, adopts thread connecting mode successively between drilling rod and drill bit.In actual production, often there is following phenomenon in the iron opening equipment of blast furnace of this structure: 1, iron mouth can not be opened by disposable brill, needing field worker to change repeatedly drilling rod and drill bit even adopts the mode of burning oxygen to beat tapping outlet, expend time in length, often causes blast furnace checking, slow wind even hanging because not going out slag iron in clean cupola well in time; 2, in taphole drilling machine tapping outlet process, drilling rod is easily stuck in iron mouth passage, and be forced to burn oxygen and beat tapping outlet, molten iron speed is easily bigger than normal in this case, potential safety hazard very large before causing State of Blast Furnace; 3, more bit change or drilling rod time, often cause distortion because the connecting portion of drill bit and drilling rod contacts hot environment and bears very large moment of torsion in journey made a slip of the tongue by brill iron, be difficult to separately, add the labour intensity of stokehold workman, even cause a whole set of tapping outlet device to be scrapped.Existing iron opening equipment of blast furnace has not been well positioned to meet the requirement of blast furnace ironmaking production to stokehold tapping outlet.
Utility model content
The purpose of this utility model is to provide a kind of iron opening equipment of blast furnace, and this device can solve existing tapping outlet device to be existed and disposable brill tapping outlet, drilling rod can not easily be stuck in the yielding problem even ruptured of connecting portion in iron mouth passage, between drilling rod and drill bit or between adapter sleeve and drilling rod.
In order to solve the problem, the technical solution adopted in the utility model is: this iron opening equipment of blast furnace comprises the adapter sleeve, drilling rod and the drill bit that connect successively, the outline of described drilling rod cross section is Polygons, and the two ends of described drilling rod are inserted respectively in described adapter sleeve and described drill bit and are connected and fixed.
In the technical scheme of above-mentioned iron opening equipment of blast furnace, technical scheme can also be more specifically: described Polygons is regular polygon.
Further, described regular polygon is regular hexagon.
Further, described drill bit, described drilling rod and described adapter sleeve offer through hole respectively vertically, and each described through hole is communicated with formation one passage.
Further, described drill bit is provided with multiple sludge groove and multiple drainage pore, and described drainage pore is connected with the through hole of described drill bit.
Further, described drainage pore is obliquely installed towards the front end of described drill bit from inside to outside.
Further, described drill bit is evenly laid with multiple Wimet edge of a knife.
Further, described drilling rod is connected and fixed respectively by spot welding with described drill bit and described adapter sleeve respectively.
Owing to have employed technique scheme, the utility model compared with prior art has following beneficial effect:
1, polygonal drilling rod is relative to typical circular bull stick, much smaller with the contact area of iron mouth passage in tapping outlet process, to be conducive in tapping outlet process foreign material that blowout tapping outlet fast produces and to reduce Chao Tiekou, avoiding drilling rod and be stuck in phenomenon in iron mouth passage, improve tapping outlet efficiency.
2, adapter sleeve, adopt between drilling rod and drill bit three and simply insert mode of connection, compared with current thread connecting mode, the moment of torsion that can transmit and bear is larger, the screw connection point avoided in tapping outlet process between drilling rod and drill bit or between adapter sleeve and drilling rod is out of shape situation about even rupturing, improve tapping outlet speed, disposable brill tapping outlet before being conducive to State of Blast Furnace; And Fast Installation and dismounting can be realized, shorten the tapping outlet time, reduce the labour intensity of stokehold workman.
3, when drill bit use repeatedly to need after rust to change green bit time, only need be cut away from drilling rod by old drill bit with cutting machine, be again inserted in green bit, spot welding is reinforced, and adopts this mode of connection, decreases stokehold spare parts consumption amount, reduces production cost.
4, offer through hole at adapter sleeve, drilling rod and drill bit and connect into passage, can make by this passage after water and pressurized air mixed aerosol, thus formed at drill bit and iron mouth contact area in tapping outlet process and be atomized cooling protection district.
5, offer multiple drainage pore, be conducive to forming stable atomization cooling protection district at drill bit and iron mouth contact area.
6, this device has stopped the phenomenon that stokehold Tie Kou does not open, improve tapping outlet speed before State of Blast Furnace, slag iron liquid level long-term stability in blast furnace hearth is controlled a lower level, reduce the impact of various burst accident on blast fumance, be conducive to the direct motion steady in a long-term of conditions of blast furnace, cost declining Be very effective.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Fig. 4 is the C-C sectional view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail:
Iron opening equipment of blast furnace shown in Fig. 1 to Fig. 3 comprises the drill bit 1, drilling rod 2 and the adapter sleeve 3 that connect successively, and wherein, adapter sleeve 3 is connected by helicitic texture with the output shaft of taphole drilling machine; The outline of drilling rod 2 cross section in the present embodiment is regular hexagon, the outline of the drilling rod cross section in other embodiment can be the Polygons such as square or pentagon, it is orthohexagonal open holes 4-2 that adapter sleeve 3 and drill bit 1 are respectively arranged with the cross section matched with drilling rod 2, see Fig. 4; Before tapping outlet, inserted respectively at drilling rod 2 two ends in adapter sleeve 3 and drill bit 2 the corresponding mounting hole, reinforce in the simple spot welding of the intersection of connecting portion, its effect drilling rod 2 and drill bit 1 is exited from Tie Kou smoothly after boring tapping outlet; In drill bit 1, drilling rod 2 and adapter sleeve 3, offer through hole 4-1,4-2,4-3 vertically respectively, each through hole 4-1,4-2,4-3 are communicated with formation one passage 4; As shown in Figure 4, in order to obtain more stable nebulization region, drill bit 1 is evenly laid with multiple drainage pore 1-1 be connected with drill bit 1 through hole 4-1, and these drainage pores 1-1 is used for exhaust outlet, and each drainage pore 1-1 is obliquely installed towards the front end of drill bit 1 from inside to outside; It is worth mentioning that, drill bit 1 is evenly laid with multiple Wimet edge of a knife 1-3, in addition, is also provided with multiple sludge groove 1-2.
During tapping outlet, only six seamed edges of drilling rod 2 and iron mouth channel contact, can when not increasing iron oral pore footpath, reduces the contact area of drilling rod 2 and iron mouth passage; In working process, after the water entered from taphole drilling machine rotating shaft and pressurized air mixed aerosol, arrive drill bit 1 and iron mouth contact area by the passage 4 of adapter sleeve 3, drilling rod 2 and drill bit 1 and drainage pore 1-1 successively, realize atomization cooling.
This iron opening equipment of blast furnace easily beats that drilling rod 2 in tapping outlet, iron mouth opening procedure can not be stuck in iron mouth passage, installation and removal conveniently can reduce stokehold labour intensity, repeatedly can utilize and reduce stokehold and produce spare parts consumption amount.
Claims (8)
1. an iron opening equipment of blast furnace, comprises the adapter sleeve, drilling rod and the drill bit that connect successively, it is characterized in that: the outline of described drilling rod cross section is Polygons, and the two ends of described drilling rod are inserted respectively in described adapter sleeve and described drill bit and are connected and fixed.
2. iron opening equipment of blast furnace according to claim 1, is characterized in that: described Polygons is regular polygon.
3. iron opening equipment of blast furnace according to claim 2, is characterized in that: described regular polygon is regular hexagon.
4. the iron opening equipment of blast furnace according to any one of claim 1-3 claim, is characterized in that: described drill bit, described drilling rod and described adapter sleeve offer through hole respectively vertically, and each described through hole is communicated with formation one passage.
5. iron opening equipment of blast furnace according to claim 4, is characterized in that: described drill bit is provided with multiple sludge groove and multiple drainage pore, and described drainage pore is connected with the through hole of described drill bit.
6. iron opening equipment of blast furnace according to claim 5, is characterized in that: described drainage pore is obliquely installed towards the front end of described drill bit from inside to outside.
7. iron opening equipment of blast furnace according to claim 6, is characterized in that: described drill bit is evenly laid with multiple Wimet edge of a knife.
8. iron opening equipment of blast furnace according to claim 7, is characterized in that: described drilling rod is connected and fixed respectively by spot welding with described drill bit and described adapter sleeve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751181.1U CN204981924U (en) | 2015-09-26 | 2015-09-26 | Iron mouthful device is opened to blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520751181.1U CN204981924U (en) | 2015-09-26 | 2015-09-26 | Iron mouthful device is opened to blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204981924U true CN204981924U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520751181.1U Active CN204981924U (en) | 2015-09-26 | 2015-09-26 | Iron mouthful device is opened to blast furnace |
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| Country | Link |
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| CN (1) | CN204981924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108929929A (en) * | 2017-05-23 | 2018-12-04 | 余凤彬 | A kind of blast furnace brill iron mouth device |
-
2015
- 2015-09-26 CN CN201520751181.1U patent/CN204981924U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108929929A (en) * | 2017-05-23 | 2018-12-04 | 余凤彬 | A kind of blast furnace brill iron mouth device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |