CN202530101U - Drill bit for blast furnace taphole driller - Google Patents
Drill bit for blast furnace taphole driller Download PDFInfo
- Publication number
- CN202530101U CN202530101U CN2012200623032U CN201220062303U CN202530101U CN 202530101 U CN202530101 U CN 202530101U CN 2012200623032 U CN2012200623032 U CN 2012200623032U CN 201220062303 U CN201220062303 U CN 201220062303U CN 202530101 U CN202530101 U CN 202530101U
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- drill bit
- blast furnace
- tooth
- open hole
- hole machine
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Abstract
The utility model discloses a drill bit for a blast furnace taphole driller. The drill bit comprises a cylindrical drill bit body (1), and is characterized in that a slope (2) is formed between the top surface and the side wall of the drill bit body (1). The drill bit for the blast furnace taphole driller further comprises top drill teeth (3) arranged on the top surface of the drill bit body (1), a top cooling air hole (4) and lateral drill teeth (5) uniformly arranged on the slope (2); a chip groove (6) pitched in the side wall of the drill bit body (1) and the slope (2) is formed between every two lateral drill teeth (5); a lateral cooling air hole (7) is formed in the chip groove (6); and a central air vent (8) communicated with the top cooling air hole (4) and the lateral cooling air hole (7) is formed inside the drill bit body (1). By virtue of the drill bit for the blast furnace taphole driller, the cooling effect of the taphole driller can be enhanced, the chip removing effect can be reinforced, and the tapping speed can be quickened.
Description
Technical field
The utility model relates in a kind of metallurgy industry, and blast furnace or COREX etc. are the taphole drilling machine drill bit of opening iron notch in the smelting technology of product with liquid molten iron.
Background technology
Be in the iron-smelting process of product with the molten iron; The operation of front slagging iron is one of important step of producing; In time the tapping outlet of beating of safety goes out to use up slag iron and not only can guarantee the stable smooth operation produced, and can improve the ability that stove is resisted the influence of extraneous unfavorable factor to greatest extent.
Wherein, Open on the bigger degree of being applied in of iron vocal imitation skill and relevant device thereof and determined the flushing and casting working strength of workers; Therefore, can guarantee that safe in the predetermined short period, beating tapping outlet and obtain the ideal iron mouth pore passage is the fundamental requirement to the iron of slagging tap.
Before the last century the eighties, flushing and casting leans on artificial drill rod to beat tapping outlet basically, and drill rod becomes the instrument of taphole drilling machine.But, use the drill rod tapping outlet, concerning the operator, its labour intensity is big, and SF is low; In addition, iron mouth opening time is long, has had a strong impact on normal production direct motion.
Along with the development of metallurgical industry, China is power through introducing advanced tapping outlet technology with pressurized air now, adopts comparatively sharp blade drill bit simultaneously, has alleviated labor intensity of operating personnel greatly.
Yet,,, need the cutting power of drill bit and chip removal ability all will reach certain standard if expect the ideal iron mouth pore passage according to above-mentioned tapping outlet technology.On the other hand, there is following problem mostly in the drill bit in nowadays blast furnace, especially COREX iron perforater use:
1, drill bit structure is unreasonable, the perforate ability, and cutting power and chip removal ability do not match;
2, general resistance to elevated temperatures is not enough, and its cooling performance is relatively poor in addition in addition, and drill bit can not be cooled off fully; Hot strength can not guarantee that heating is softening easily in the tapping outlet process, loses the lead plug performance; Open an iron mouth will be repeatedly bit change more, bit consumption is big, lead plug efficient is not high;
3, material rub proofness under high-temperature condition of drill bit use is not enough.
Because above-mentioned deficiency, iron notch generally can not reach once and drill through, but needs to lean on strikes to get through or to pass through burning oxygen boiled, even sometimes needs other bit change.When influencing the working efficiency of stokehold, strengthen the stokehold working strength of workers thus, reduced the SF of stokehold work.
The utility model content
For overcoming the problems referred to above, the utility model provides a kind of blast furnace open hole machine to use drill bit, and the drill bit that said iron perforater is used has following advantage:
1, improves wear-resisting, the heat-resisting ability of drill bit, strengthen the boring ability of drill bit, reach and once hole successfully, reduce the labour intensity of stokehold work, improved the SF of stokehold work;
2, strengthen the cooling power of taphole drilling machine drill bit, improved the work-ing life of drill bit;
3, strengthen the chip removal ability of taphole drilling machine drill bit, improved the drill bit fltting speed of iron perforater.
For satisfying above-mentioned technical requirements, the technical scheme of the drill bit that the iron perforater of the utility model is used is following:
A kind of blast furnace open hole machine is used drill bit, comprises columned drill body 1, it is characterized in that,
Be formed with inclined-plane 2 between the end face of said drill body 1 and the sidewall;
Said a kind of blast furnace open hole machine comprises also that with drill bit tooth 3 is bored at the top that evenly is arranged on said drill body 1 end face and pore 4 is cooled off at the top, and the sidepiece that evenly is arranged on the said inclined-plane 2 bores tooth 5;
Per two said sidepieces bore the junk slot 6 that is formed with said drill body 1 sidewall of incision and said inclined-plane 2 between the tooth 5;
Be formed with sidepiece cooling pore 7 in the said junk slot 6;
Said drill body 1 inside is formed with the center roof vent 8 that is communicated with said top cooling pore 4 and said sidepiece cooling pore 7.
Use drill bit according to the described a kind of blast furnace open hole machine of the utility model, it is characterized in that, tooth 3 is bored for being embedded in the spherical brill tooth on said drill body 1 end face in said top.
Use drill bit according to the described a kind of blast furnace open hole machine of the utility model, it is characterized in that, quantity >=2 of tooth 3 are bored at said top.
Use drill bit according to the described a kind of blast furnace open hole machine of the utility model, it is characterized in that, quantity >=2 of said top cooling pore 4.
Use drill bit according to the described a kind of blast furnace open hole machine of the utility model, it is characterized in that, said sidepiece bores tooth 5 for being embedded in the spherical brill tooth on the said inclined-plane.
Use drill bit according to the described a kind of blast furnace open hole machine of the utility model, it is characterized in that, said sidepiece bores quantity >=3 of tooth 5.
Use drill bit according to the described a kind of blast furnace open hole machine of the utility model, it is characterized in that, said junk slot 6 is an arc-shaped concave.
Blast furnace open hole machine according to the utility model is used drill bit, but the cooling performance of reinforced cut-out machine is strengthened the chip removal effect, and drill bit opening speed is fast, can reach an opening success, can be because of failure scenarios takes place because the blade passivation causes holing in boring procedure.
Description of drawings
Fig. 1 is that a kind of blast furnace open hole machine of the utility model is with drill bit top surface structure synoptic diagram.
Fig. 2 is that a kind of blast furnace open hole machine of the utility model is with drill bit side structure synoptic diagram.
Wherein 1 is drill body, and 2 is the inclined-plane, and 3 for boring tooth in the top, and 4 are top cooling pore, and 5 for sidepiece bores tooth, and 6 is junk slot, and 7 are sidepiece cooling pore, and 8 is center roof vent.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
A kind of drill bit of metallurgy industry iron perforater, drill bit is processed by wear-resisting, high temperature cemented carbide material; The drill bit top is inlaid with 2 and bores tooth, is inlaid with 3 in the drill bit top-side and bores tooth, and boring the tooth projecting height is 5-20mm, and the diameter of each spherical brill tooth is 5-20mm.
By each pawl, all be furnished with an arc-shaped concave junk slot and on the junk slot tangent plane, be furnished with a cooling pore and be connected with center roof vent; Be connected with high pressure nitrogen, the cooling performance of reinforced cut-out machine is strengthened the chip removal effect; Improve fltting speed, hole diameter is 5-20mm.
The drill bit of a kind of metallurgy industry iron perforater that the utility model provides adopts spherical brill tooth; This brill tooth is that wear-resisting, high temperature cemented carbide material is processed; Improved the abrasion resistance properties that bores tooth; Avoided causing the situation of opening failure that take place the work-ing life of having improved the taphole drilling machine drill bit significantly because general taphole drilling machine drill bit produces passivation in boring procedure;
Each bores the tooth side and all is furnished with a cooling pore, is connected with high pressure nitrogen, and drill bit, brill tooth are cooled off, and has further strengthened the cooling intensity of drill bit, has improved the work-ing life of drill bit;
All be furnished with an arc-shaped concave debris port in that each lateral brill tooth is other, and a cooling pore is all arranged on the debris port face, strengthened the ability of chip removal simultaneously, improved fltting speed at refrigerative.
It is in the iron-smelting process of product with the molten iron that the utility model drill bit can be applicable to any.
Claims (7)
1. a blast furnace open hole machine is used drill bit, comprises columned drill body (1), it is characterized in that,
Be formed with inclined-plane (2) between the end face of said drill body (1) and the sidewall;
Said a kind of blast furnace open hole machine comprises also that with drill bit tooth (3) is bored at the top that evenly is arranged on said drill body (1) end face and pore (4) is cooled off at the top, and the sidepiece that evenly is arranged on the said inclined-plane (2) bores tooth (5);
Per two said sidepieces bore the junk slot (6) that is formed with incision said drill body (1) sidewall and said inclined-plane (2) between the tooth (5);
Be formed with sidepiece cooling pore (7) in the said junk slot (6);
Said drill body (1) inside is formed with the center roof vent (8) that is communicated with said top cooling pore (4) and said sidepiece cooling pore (7).
2. a kind of blast furnace open hole machine according to claim 1 is used drill bit, it is characterized in that, tooth (3) is bored for being embedded in the spherical brill tooth on said drill body (1) end face in said top.
3. a kind of blast furnace open hole machine according to claim 1 is used drill bit, it is characterized in that, quantity >=2 of tooth (3) are bored at said top.
4. a kind of blast furnace open hole machine according to claim 1 is used drill bit, it is characterized in that, quantity >=2 of said top cooling pore (4).
5. a kind of blast furnace open hole machine according to claim 1 is used drill bit, it is characterized in that, said sidepiece bores tooth (5) for being embedded in the spherical brill tooth on the said inclined-plane.
6. a kind of blast furnace open hole machine according to claim 1 is used drill bit, it is characterized in that, said sidepiece bores quantity >=3 of tooth (5).
7. a kind of blast furnace open hole machine according to claim 1 is used drill bit, it is characterized in that, said junk slot (6) is an arc-shaped concave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200623032U CN202530101U (en) | 2012-02-24 | 2012-02-24 | Drill bit for blast furnace taphole driller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200623032U CN202530101U (en) | 2012-02-24 | 2012-02-24 | Drill bit for blast furnace taphole driller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202530101U true CN202530101U (en) | 2012-11-14 |
Family
ID=47131297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200623032U Expired - Fee Related CN202530101U (en) | 2012-02-24 | 2012-02-24 | Drill bit for blast furnace taphole driller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202530101U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241279A (en) * | 2019-05-28 | 2019-09-17 | 西北矿冶研究院 | Combined type metallurgical furnace iron notch opening drill bit and tooth fixing process thereof |
| CN110527761A (en) * | 2019-09-20 | 2019-12-03 | 贵州捷盛钻具股份有限公司 | A kind of hemi-spherical ended shape insert blast furnace opening drill bit |
| CN110643767A (en) * | 2019-09-20 | 2020-01-03 | 贵州捷盛钻具股份有限公司 | Drill bit for fast drilling blast furnace gun |
-
2012
- 2012-02-24 CN CN2012200623032U patent/CN202530101U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241279A (en) * | 2019-05-28 | 2019-09-17 | 西北矿冶研究院 | Combined type metallurgical furnace iron notch opening drill bit and tooth fixing process thereof |
| CN110527761A (en) * | 2019-09-20 | 2019-12-03 | 贵州捷盛钻具股份有限公司 | A kind of hemi-spherical ended shape insert blast furnace opening drill bit |
| CN110643767A (en) * | 2019-09-20 | 2020-01-03 | 贵州捷盛钻具股份有限公司 | Drill bit for fast drilling blast furnace gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOGANG GROUP CO., LTD. Free format text: FORMER OWNER: BAOSHAN IRON + STEEL CO., LTD. Effective date: 20121231 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201900 BAOSHAN, SHANGHAI TO: 200122 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121231 Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: Baosteel Group Corporation Address before: 201900 Fujin Road, Shanghai, No. 885, No. Patentee before: Baoshan Iron & Steel Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20210224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |