CN203904375U - Blast furnace tapping hole drilling tool - Google Patents
Blast furnace tapping hole drilling tool Download PDFInfo
- Publication number
- CN203904375U CN203904375U CN201420230555.0U CN201420230555U CN203904375U CN 203904375 U CN203904375 U CN 203904375U CN 201420230555 U CN201420230555 U CN 201420230555U CN 203904375 U CN203904375 U CN 203904375U
- Authority
- CN
- China
- Prior art keywords
- drill
- hole
- shank
- bit shank
- prosopyle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Blast Furnaces (AREA)
Abstract
The utility model provides a blast furnace tap hole drilling tool, which comprises a drill rod, a connecting sleeve and a drill 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. The utility model integrates the drill shank, the connecting sleeve and the sealing sleeve, reduces the number of assembling parts and connecting parts, and avoids the breakage of weak links at the connecting part of the accessory; the utility model discloses a bore bit tail end is equipped with strikes the tail groove, strikes the tail end and is difficult to be damaged by the impact when the tapping machine impacter strikes and beats, has improved coupling mechanism's life.
Description
Technical field
The utility model relates to metallurgy high furnace ironmaking technology field, is specifically related to a kind of blast furnace open hole drilling tool.
Background technology
At present, the drilling tool connection mechanism that domestic smelting iron and steel enterprise blast furnace open hole uses adopts the parts such as drill bit, drilling rod, sleeved, bit shank to interconnect respectively, finally be connected with taphole drilling machine knocker, when the work of rock drill bit shank, its tail end face directly bears the impact contact of rock drill piston, the ballistic work of piston motion is delivered to drill steel and bore bit from bit shank tail end, thereby carries out rock drilling operation.Meanwhile, the spline place of bit shank part transmits torque under the drive of the rock drill rotary cover, and whole Drilling system is rotated.Bit shank is subject to the constraint of on-the-spot harsh Working environment complexity, high to specification of quality, because interconnecting piece is many, poorly sealed, a little less than the threaded portion relative thin of junction, under taphole drilling machine operation is impacted, threaded portion is easy to fracture, drill steel is fallen into iron hole and is difficult to take out, and can only adopt oxygen lance to burn tapping outlet and emit molten iron, because tapping outlet overlong time affects furnace temperature, also iron mouth is damaged larger, and consuming time, consumptive material, effort.When drill steel exits after Tie Kou opens, be subject to the impact of axial tension effect, usually make to produce gap between drill steel end face and joint sleeve circular bead surface, cause for the blast of cooling and deslagging and 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 taphole drilling machine system failure, cause the each accessory of tapping outlet system to scrap in advance, accessory consumption is large, drill steel is scrapped and is difficult to unload because of reasons such as high temperature deformations afterwards, bring a series of difficult problems to actual production, also increased production cost simultaneously.
Utility model content
The utility model, for problems of the prior art, provides a kind of blast furnace open hole drilling tool.
A kind of blast furnace open hole drilling tool of the present utility model, comprises the drilling rod, adapter sleeve, the bit shank that connect successively; Described drilling rod has through hole, and one end of this drilling rod is welded with drill bit, and the other end and adapter sleeve are threaded connection, and between described adapter sleeve and bit shank, is provided with seal cartridge, and wherein, adapter sleeve, seal cartridge and bit shank are integrated; Described seal cartridge is provided with intake opening and prosopyle, and this intake opening and prosopyle are communicated with through hole respectively; Described bit shank is provided with stern notch away from one end of seal cartridge, and the middle part of described bit shank is provided with spline, and this spline and bit shank are integrated.
For the formation high-pressure water mist that makes water fogging with high-pressure blast, and make atomization flow clear and coherent smooth, evenly, described intake opening, prosopyle and through hole is Y-shaped is communicated with, intake opening and prosopyle are symmetrical arranged with respect to the medullary ray of through hole.
In order to prevent that the pressure of high-pressure blast from reducing and preventing atomized water leakage, ensure the normal job requirement of taphole drilling machine, on described seal cartridge, the both sides of corresponding intake opening and prosopyle are equipped with sealing groove.
In order to solve taphole drilling machine drilling tool displacement in the time that impact shakes work, affect the sealing effectiveness of seal cartridge, prevent that spline from deviating from the spline housing of taphole drilling machine, on described bit shank, between sealing groove and spline, be provided with barricade, barricade and bit shank are integrated.
For anti-sealing by high-pressure blast atomization after reverse reflux, between described intake opening and prosopyle, be provided with blind hole, this blind hole is communicated with intake opening, prosopyle, through hole.
The relative prior art of the utility model has the following advantages:
1, bit shank and adapter sleeve, seal cartridge are designed to one by the utility model, reduced built-up member and connecting portion, avoided the weak link fracture of accessory junction;
2, bit shank tail end of the present utility model is provided with impact stern notch, impacts tail end while shaking and is difficult for by impact failure when taphole drilling machine knocker impacts, and has improved the work-ing life of connection mechanism;
3, between the utility model intake opening and spline, outer wall is provided with spacing barricade, has effectively controlled connection mechanism and has shaken in impact the problem being shifted in process;
4, through hole of the present utility model is connected with intake opening and prosopyle, and the high-pressure water mist after high-pressure blast makes water fogging arrives bit face by air-out (water) aperture drill steel inner via hole, and in time cooling and effective drill bit and drilling rod protected be not by high temperature liquid iron scaling loss;
5, the utility model intake opening and both sides, prosopyle are respectively equipped with sealing groove, while effectively having prevented producing gap between drill steel end face and joint sleeve circular bead surface, cause for the blast of cooling and deslagging and reveal and the problem of build-up of pressure deficiency.
6, the utility model high-pressure blast makes water fogging, the high-pressure water mist forming leads to iron notch opening drill by drill steel centre hole, form a vaporific protective belt at chisel edge, make high temperature liquid iron cannot approach drill bit and drilling rod, cooling and effective Drilling mechanism that protected in time, also prevented that the dregs such as molten iron and stemming body refuse are from drill steel head reverse reflux, cause drill steel, adapter sleeve, hit axle, blast mechanical system and whole taphole drilling machine system failure, cause the each accessory of tapping outlet system to scrap in advance, accessory consumption is large, drill steel is scrapped and is difficult to unload inferior problem because of reasons such as high temperature deformations afterwards,
7, the utility model has improved the work-ing life of blast furnace open hole connection mechanism, has realized tapping outlet and tapping outlet drilling tool and can reuse repeatedly, has improved working efficiency, has reduced production cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, blast furnace open hole drilling tool of the present utility model is described in further detail.
Blast furnace open hole drilling tool as shown in Figure 1 and Figure 2, comprises the drilling rod 12, adapter sleeve 2, the bit shank 1 that connect successively; 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, between adapter sleeve 2 and bit shank 1, is provided with seal cartridge 16, and wherein, adapter sleeve 2, seal cartridge 16 are integrated with bit shank 1; Seal cartridge 16 is provided with intake opening 3 and prosopyle 4, intake opening 3 is symmetrical arranged with respect to the medullary ray of through hole 9 with prosopyle 4, intake opening 3, prosopyle 4 and through hole 9 is Y-shaped is communicated with, be provided with blind hole 6 between intake opening 3 and prosopyle 4, and this blind hole 6 is communicated with intake opening 3, prosopyle 4, through hole 9; On seal cartridge 16, the both sides of corresponding intake opening 3 and prosopyle 4 are equipped with sealing groove 11; Bit shank 1 is provided with stern notch 7 away from one end of seal cartridge 16, and the middle part of bit shank 1 is provided with spline 5, and this spline 5 is integrated with bit shank 1; On bit shank 1, between sealing groove 11 and spline 5, be provided with barricade 8, barricade 8 is integrated with bit shank 1.
When use, the bit shank end spline 5 of connection mechanism is installed in taphole drilling machine knocker, match with the spline in taphole drilling machine knocker, the drilling rod of Drilling mechanism 12 male end are connected with the internal thread of connection mechanism adapter sleeve 2, drilling rod 12 the other end tipped drills 13, open taphole drilling machine, drive connection mechanism and the rotation of Drilling mechanism, by taphole drilling machine near blast furnace taphole position, drill bit is aimed at 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 blast inlet 3 and water-in 4 respectively, high-pressure blast makes water fogging, the high-pressure water mist forming arrives drill bit 13 end faces through the through hole 9 at drilling rod 12 centers, forming vaporific protective belt 14 taphole drilling machines at drill bit 13 front ends drives drilling tool to start Drilling to the oral pore that taps a blast furnace.Start tapping outlet operation, lead to iron notch opening drill by the through hole 9 at drilling rod 12 centers.Start taphole drilling machine; taphole drilling machine drives drilling tool to start Drilling iron oral pore; punch iron mouth and return rapidly afterwards taphole drilling machine drilling tool; emit molten iron; drill bit 13 front ends form high-pressure water mists in time cooling and effective drill bit 13 and drilling rod 12 protected not by high temperature liquid iron scaling loss; close water and high-pressure blast until drilling rod 12 and drill bit 13 after cooling, complete an opening operation, drilling tool is reusable.
Claims (5)
1. a blast furnace open hole drilling tool, comprises the drilling rod (12), adapter sleeve (2), the bit shank (1) that connect successively; 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 seal cartridge (16), wherein, adapter sleeve (2), seal cartridge (16) are integrated with bit shank (1); Described seal cartridge (16) is provided with intake opening (3) and prosopyle (4), and this intake opening (3) and prosopyle (4) are communicated with through hole (9) respectively; Described bit shank (1) is provided with stern notch (7) away from one end of seal cartridge (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. a kind of blast furnace open hole drilling tool as claimed in claim 1, is characterized in that: described intake opening (3), prosopyle (4) and Y-shaped connection of through hole (9), intake opening (3) is symmetrical arranged with respect to the medullary ray of through hole (9) with prosopyle (4).
3. a kind of blast furnace open hole drilling tool as claimed in claim 1 or 2, is characterized in that: the both sides of the upper corresponding intake opening (3) of described seal cartridge (16) and prosopyle (4) are equipped with sealing groove (11).
4. a kind of blast furnace open hole drilling tool as claimed in claim 3, is characterized in that: between the upper sealing groove (11) of described bit shank (1) and spline (5), be provided with barricade (8), barricade (8) is integrated with bit shank (1).
5. a kind of blast furnace open hole drilling tool as claimed in claim 4, is characterized in that: between described intake opening (3) and prosopyle (4), be provided with blind hole (6), this blind hole (6) is communicated with intake opening (3), prosopyle (4), through hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230555.0U CN203904375U (en) | 2014-05-07 | 2014-05-07 | Blast furnace tapping hole drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230555.0U CN203904375U (en) | 2014-05-07 | 2014-05-07 | Blast furnace tapping hole drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203904375U true CN203904375U (en) | 2014-10-29 |
Family
ID=51778666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420230555.0U Withdrawn - After Issue CN203904375U (en) | 2014-05-07 | 2014-05-07 | Blast furnace tapping hole drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203904375U (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 |
-
2014
- 2014-05-07 CN CN201420230555.0U patent/CN203904375U/en not_active Withdrawn - After Issue
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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160921 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20160921 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |