CN103981314B - Blast furnace iron notch opening device - Google Patents
Blast furnace iron notch opening device Download PDFInfo
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- CN103981314B CN103981314B CN201410189944.8A CN201410189944A CN103981314B CN 103981314 B CN103981314 B CN 103981314B CN 201410189944 A CN201410189944 A CN 201410189944A CN 103981314 B CN103981314 B CN 103981314B
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- bit shank
- air inlet
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Abstract
The invention provides a blast furnace taphole drilling device, which comprises a drill rod, a connecting sleeve and a drill rod shank which are connected in sequence; the drill rod is provided with a through hole, one end of the drill rod is welded with a drill bit, the other end of the drill rod is connected with the connecting sleeve through threads, and a sealing sleeve is arranged between the connecting sleeve and the drill shank, wherein the connecting sleeve, the sealing sleeve and the drill shank are integrated; the sealing sleeve is provided with an air inlet hole and a water inlet hole which are respectively communicated with the through hole; the drill bit shank is characterized in that a tail groove is formed in one end, far away from the sealing sleeve, of the drill bit shank, a spline is arranged in the middle of the drill bit shank, and the spline and the drill bit shank are integrated. According to the invention, the drill shank, the connecting sleeve and the sealing sleeve are designed into a whole, so that the number of assembling parts and connecting parts is reduced, and the breakage of a weak link at the connecting part of the accessory is avoided; the drill bit tail end part is provided with the impact tail groove, so that the impact tail end part is not easy to be impacted and damaged when the tapping machine impactor impacts and shakes, and the service life of the connecting mechanism is prolonged.
Description
Technical field
The present invention relates to metallurgy high furnace ironmaking technology field, be specifically related to a kind of iron opening equipment of blast furnace.
Background technology
At present, the device bindiny mechanism that domestic smelting iron and steel enterprise blast furnace open hole uses is all to use the parts such as drill bit, drilling rod, connection sleeve pipe, bit shank to be mutually coupled, respectively, finally it is connected with tapping machine impacter, during shank of rock drill work, its tail end face directly bears the Contact-impact of rock drill piston, the ballistic work of piston movement is delivered to drill steel and bore bit from bit shank tail end, thus carries out rock drilling operation.Meanwhile, at the spline of bit shank part, under the drive of the rock drill rotary cover, transmit torque, make whole drill system rotate.Bit shank is retrained by on-the-spot harsh working environment complexity, high to prescription, owing to connection member is many, poorly sealed, junction threaded portion is the weakest, under tapping machine operation is impacted, threaded portion is easy to fracture, drill steel is fallen into ferrum hole and is difficult to take out, and oxygen lance can only be used to burn tapping outlet and release molten iron, affect furnace temperature due to tapping outlet overlong time, also ferrum mouth is damaged relatively big, and time-consumingly, consumptive material, laborious.Affected by axial tension effect when after Tie Kou opens, drill steel exits, usually make to produce between drill steel end face and branch sleeve circular bead surface gap, the blast for cooling and deslagging is caused to reveal, the dregs such as molten iron and stemming body refuse are from drill steel head reverse reflux, cause drill steel, adapter sleeve, strike axle, blast mechanical system and whole tapping machine system failure, the each accessory of tapping outlet system is caused to scrap in advance, accessory consumption is big, drill steel is difficult to unload because of reasons such as high temperature deformations after scrapping, bring an a series of difficult problem to actual production, too increase production cost simultaneously.
Summary of the invention
The present invention is directed to that prior art exists connection member many, poorly sealed, threaded portion is easy to fracture under tapping machine operation is impacted problem, it is provided that a kind of iron opening equipment of blast furnace.
A kind of iron opening equipment of blast furnace of the present invention, including the drilling rod being sequentially connected with, adapter sleeve, bit shank；Described drilling rod has through hole, and one end of this drilling rod is welded with drill bit, and the other end is threaded connection with adapter sleeve, is provided with sealing shroud between described adapter sleeve and bit shank, and wherein, adapter sleeve, sealing shroud are integrated with bit shank；Described sealing shroud is provided with fresh air inlet and inlet opening, and this fresh air inlet connects with through hole respectively with inlet opening；Described bit shank is provided with stern notch away from one end of sealing shroud, and the middle part of described bit shank is provided with spline, and this spline is integrated with bit shank.
In order to make water fogging formation high-pressure water mist with high-pressure blast, and making atomization flow clear and coherent smooth, uniformly, described fresh air inlet, inlet opening is Y-shaped with through hole connects, and fresh air inlet is symmetrical arranged relative to the centrage of through hole with inlet opening.
In order to prevent the pressure of high-pressure blast from reducing and preventing atomized water from revealing, it is ensured that the normal job requirement of tapping machine, on described sealing shroud, the both sides of corresponding fresh air inlet and inlet opening are equipped with seal groove.
In order to solve tapping machine device displacement when impact shakes work, affecting the sealing effectiveness of sealing shroud, prevent the spline housing of spline abjection tapping machine, described bit shank is provided with between seal groove and spline barricade, barricade is integrated with bit shank.
For reverse reflux after preventing water to be atomized by high-pressure blast, being provided with blind hole between described fresh air inlet and inlet opening, this blind hole connects with fresh air inlet, inlet opening, through hole.
During with above-mentioned iron opening equipment of blast furnace tapping outlet, making high-pressure blast and water by air inlet and water inlet respectively, the air outlet at adapter sleeve forms high-pressure water mist, then the through hole arrival drill bit through drilling rod, forms a vaporific protection zone at chisel edge.
Hinge structure of the present invention has the advantage that
1, bit shank and adapter sleeve, sealing shroud are designed as one by the present invention, decrease build-up member and connecting portion, it is to avoid the fracture of accessory junction weak link；
2, the bit shank tail end of the present invention is provided with impact stern notch, is difficult to, by impact failure, improve the service life of bindiny mechanism when tapping machine impacter carries out impacting tail end when impact shakes；
3, between fresh air inlet of the present invention and spline, outer wall is provided with spacing barricade, effectively controls bindiny mechanism's problem of displacement during impact shakes；
4, the through hole of the present invention is connected with fresh air inlet and inlet opening, and the high-pressure water mist after high-pressure blast makes water fogging arrives bit face by air-out (water) hole through drill steel inner via hole, cools down in time and effectively protects drill bit and drilling rod not by high temperature liquid iron scaling loss；
5, fresh air inlet of the present invention and both sides, inlet opening are respectively equipped with seal groove, when effectively prevent generation gap between drill steel end face and branch sleeve circular bead surface, cause the blast for cooling and deslagging to reveal and the problem of build-up of pressure deficiency.
6, high-pressure blast of the present invention makes water fogging, the high-pressure water mist formed leads to iron notch opening drill by drill steel centre bore, a vaporific protection zone is formed at chisel edge, make the high temperature liquid iron cannot be close to drill bit and drilling rod, cool down in time and effectively protect Drilling mechanism, also prevent the dregs such as molten iron and stemming body refuse from drill steel head reverse reflux, cause drill steel, adapter sleeve, hit axle, blast mechanical system and whole tapping machine system failure, the each accessory of tapping outlet system is caused to scrap in advance, accessory consumption is big, drill steel is difficult to unload inferior problem because of reasons such as high temperature deformations after scrapping；
7, the present invention improves the service life of blast furnace open hole bindiny mechanism, it is achieved that a tapping outlet and tapping outlet device can be reused repeatedly, improve work efficiency, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sectional view of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the iron opening equipment of blast furnace of the present invention is described in further detail.
Iron opening equipment of blast furnace as shown in Figure 1 and Figure 2, including the drilling rod 12 being sequentially connected with, adapter sleeve 2, bit shank 1；Drilling rod 12 has through hole 9, and one end of this drilling rod 12 is welded with drill bit 13, and the other end is connected by screw thread 10 with adapter sleeve 2, is provided with sealing shroud 16 between adapter sleeve 2 and bit shank 1, and wherein, adapter sleeve 2, sealing shroud 16 are integrated with bit shank 1；Sealing shroud 16 is provided with fresh air inlet 3 and inlet opening 4, fresh air inlet 3 is symmetrical arranged relative to the centrage of through hole 9 with inlet opening 4, fresh air inlet 3, inlet opening 4 is Y-shaped with through hole 9 connects, and is provided with blind hole 6 between fresh air inlet 3 and inlet opening 4, and this blind hole 6 connects with fresh air inlet 3, inlet opening 4, through hole 9；On sealing shroud 16, the both sides of corresponding fresh air inlet 3 and inlet opening 4 are equipped with seal groove 11；Bit shank 1 is provided with stern notch 7 away from one end of sealing shroud 16, and the middle part of bit shank 1 is provided with spline 5, and this spline 5 is integrated with bit shank 1；Being provided with barricade 8 on bit shank 1 between seal groove 11 and spline 5, barricade 8 is integrated with bit shank 1.
nullDuring use，The bit shank end spline 5 of bindiny mechanism is installed in tapping machine impacter，Match with the spline in tapping machine impacter，The female thread of drilling rod 12 male end of Drilling mechanism with bindiny mechanism adapter sleeve 2 is connected，Drilling rod 12 other end tipped drill 13，Open tapping machine，Bindiny mechanism and Drilling mechanism is driven to rotate，By tapping machine near blast furnace taphole position，Drill bit alignment blast furnace casting oral pore，Open water and high-pressure blast，High-pressure blast and water enter the air outlet in adapter sleeve 2 by air inlet 3 and water inlet 4 respectively，High-pressure blast makes water fogging，The high-pressure water mist the formed through hole 9 through drilling rod 12 center arrives drill bit 13 end face，A vaporific protection zone 14 is formed in drill bit 13 front end，Tapping machine driving device starts Drilling to the oral pore that taps a blast furnace，Start tapping outlet operation，Iron notch opening drill is led to by the through hole 9 at drilling rod 12 center.Start tapping machine; tapping machine driving device starts Drilling ferrum oral pore; tapping machine device is return rapidly after punching ferrum mouth; release molten iron; drill bit 13 front end forms high-pressure water mist and cools down in time and effectively protect drill bit 13 and drilling rod 12 not by high temperature liquid iron scaling loss; closing water and high-pressure blast after drilling rod 12 and drill bit 13 cool down, complete an opening operation, device is reusable.
Claims (5)
1. an iron opening equipment of blast furnace, including the drilling rod (12) being sequentially connected with, adapter sleeve (2), bit shank (1)；Described drilling rod (12) has through hole (9), one end of this drilling rod (12) is welded with drill bit (13), the other end is connected by screw thread (10) with adapter sleeve (2), it is characterized in that: between described adapter sleeve (2) and bit shank (1), be provided with sealing shroud (16), wherein, adapter sleeve (2), sealing shroud (16) are integrated with bit shank (1)；Described sealing shroud (16) is provided with fresh air inlet (3) and inlet opening (4), and this fresh air inlet (3) connects with through hole (9) respectively with inlet opening (4)；Described bit shank (1) is provided with stern notch (7) away from one end of sealing shroud (16), and the middle part of described bit shank (1) is provided with spline (5), and this spline (5) is integrated with bit shank (1).
2. iron opening equipment of blast furnace as claimed in claim 1 a kind of, it is characterised in that: described fresh air inlet (3), inlet opening (4) are Y-shaped with through hole (9) connects, and fresh air inlet (3) is symmetrical arranged relative to the centrage of through hole (9) with inlet opening (4).
3. a kind of iron opening equipment of blast furnace as claimed in claim 1 or 2, it is characterised in that: the both sides of the upper corresponding fresh air inlet (3) and inlet opening (4) of described sealing shroud (16) are equipped with seal groove (11).
4. a kind of iron opening equipment of blast furnace as claimed in claim 3, it is characterised in that: described bit shank (1) is upper is provided with barricade (8) between seal groove (11) and spline (5), barricade (8) is integrated with bit shank (1).
5. a kind of iron opening equipment of blast furnace as claimed in claim 4, it is characterised in that: being provided with blind hole (6) between described fresh air inlet (3) and inlet opening (4), this blind hole (6) connects with fresh air inlet (3), inlet opening (4), through hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189944.8A CN103981314B (en) | 2014-05-07 | 2014-05-07 | Blast furnace iron notch opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410189944.8A CN103981314B (en) | 2014-05-07 | 2014-05-07 | Blast furnace iron notch opening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103981314A CN103981314A (en) | 2014-08-13 |
| CN103981314B true CN103981314B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410189944.8A Active CN103981314B (en) | 2014-05-07 | 2014-05-07 | Blast furnace iron notch opening device |
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| CN (1) | CN103981314B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304456B (en) * | 2016-04-25 | 2019-04-02 | 攀枝花钒钛高新国有资本投资运营有限公司 | A kind of manufacturing method of the opening rifle of blast furnace iron notch tapping machine |
| CN108977602A (en) * | 2018-09-26 | 2018-12-11 | 柳州钢铁股份有限公司 | Taphole mud sleeve dressing tool |
| CN111074029A (en) * | 2018-10-19 | 2020-04-28 | 宝山钢铁股份有限公司 | Striking rod capable of preventing connecting sleeve of drill rod from falling off |
| CN111140161B (en) * | 2019-12-30 | 2021-10-22 | 无锡森亘精密机械有限公司 | Drill shank for special equipment for mine and production process thereof |
| CN113862410A (en) * | 2021-09-29 | 2021-12-31 | 新兴铸管股份有限公司 | Blast furnace taphole depth measuring device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2436511Y (en) * | 2000-07-26 | 2001-06-27 | 武汉钢铁集团公司育才科工贸中心七厂 | Sectional tapping outlet drill rod quick joint |
| KR20020095923A (en) * | 2001-06-18 | 2002-12-28 | 주식회사 포스코 | Device for preventing a leak in tapping socket of the tap hole opener |
| CN203639483U (en) * | 2013-11-26 | 2014-06-11 | 广东韶钢松山股份有限公司 | Iron notch drill and drilling device thereof |
-
2014
- 2014-05-07 CN CN201410189944.8A patent/CN103981314B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2436511Y (en) * | 2000-07-26 | 2001-06-27 | 武汉钢铁集团公司育才科工贸中心七厂 | Sectional tapping outlet drill rod quick joint |
| KR20020095923A (en) * | 2001-06-18 | 2002-12-28 | 주식회사 포스코 | Device for preventing a leak in tapping socket of the tap hole opener |
| CN203639483U (en) * | 2013-11-26 | 2014-06-11 | 广东韶钢松山股份有限公司 | Iron notch drill and drilling device thereof |
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| Publication number | Publication date |
|---|---|
| CN103981314A (en) | 2014-08-13 |
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