CN204690026U - Driving iron is gone out before a kind of State of Blast Furnace - Google Patents
Driving iron is gone out before a kind of State of Blast Furnace Download PDFInfo
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- CN204690026U CN204690026U CN201520369224.XU CN201520369224U CN204690026U CN 204690026 U CN204690026 U CN 204690026U CN 201520369224 U CN201520369224 U CN 201520369224U CN 204690026 U CN204690026 U CN 204690026U
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Abstract
The utility model relates to metallurgical ironmaking technology field, go out driving iron before particularly relating to a kind of State of Blast Furnace, comprise drilling rod body, the front end of drilling rod body is fixedly connected with Deformed Steel Bars, the rear end of drilling rod body has thread segment, and the external diameter of drilling rod body is slightly larger than the external diameter of Deformed Steel Bars.The beneficial effects of the utility model are, go out driving iron before State of Blast Furnace of the present utility model, and adopt Deformed Steel Bars welded type to tap a blast furnace boring rod set, structure is simple, and processing and fabricating is convenient.The threaded drillpipe part of the recyclable rear end of used drilling rod, can continue after finishing to reuse, as long as change the Deformed Steel Bars part of drilling rod body front end scaling loss.Because drilling rod nose threads diameter only has φ about 32mm, the opening operation of a smaller aperture due also can be carried out to on-the-spot iron mouth.Because welding thread steel type boring rod set expense of tapping a blast furnace is low, greatly can reduce production cost, also can alleviate workman's intensity, the opening that taps a blast furnace before guaranteeing State of Blast Furnace is kept the safety in production.
Description
Technical field
The utility model relates to metallurgical ironmaking technology field, goes out driving iron before particularly relating to a kind of State of Blast Furnace.
Background technology
Tap a blast furnace and all use hydraulic opening machine to carry out operation in current metallurgy industry ironmaking medium and small blast furnace stokehold.General blast furnace hydraulic opening machine rushes dolly by rotating mechanism, erecting by overhang, feed mechanism and brill and forms.When tap a blast furnace and operate in stokehold at ordinary times, the rotating mechanism of taphole drilling machine operation is before this to Tie Kou front, and feed mechanism front end is affiliated on furnace wall, then carries out operation feed mechanism, treats that the drilling rod top of rock drill carries out to Tie Kou position turning the opening manipulation cut and impact again.Wherein the position of most rapid wear is being bored on the hydraulic drill (also known as impact taphole drilling machine) rushing dolly, and as processes expend usage quantity maximum be drilling rod and the drill bit of tapping outlet.
Tap a blast furnace in operation in stokehold, we usually need carry out secondary opening and carry out operation of tapping a blast furnace, because iron mouth is a blast-melted place out of confession, should be had a certain size to control blast in flowing molten iron and stove, also to there is some strength, ensure the stable of tapping duration, otherwise cannot smooth operation of furnace be ensured.First, we first screw on drill rod special the drill bit of alloy steel toe, first time opening operation is carried out by the iron mouth degree of depth in Tie Kou position, according to iron mouth situation, the position of reserved 1 meter to 0.5 meter stops boring, stay the time that certain iron mouth toasts, when the orifice drying bored in advance is to appropriate level, then carry out second time and drill through and beat tapping outlet to molten iron position.
Our a lot of manufacturer directly directly opens with the drill rod special of alloy bit of screwing on, also some manufacturers are had when second time beats tapping outlet, stokehold gunner adopts the way often exiting drill pipe inspection, until stall when finding the drill bit that exits has at red, tapping outlet is beaten again by other way, as smash tapping outlet with longer round steel, also useful oxygen lance is stretched iron mouth again and is gone to blow burning tapping outlet.But these all exist certain security risk, misoperation can injure operator.Because present blast furnace operating is for ensureing that ironmaking cost is minimum, all pursue blast furnace height blast, the operation of high wind-warm syndrome, like this when iron mouth is opened at first, in stove, high blast has one very large winding-up power, with slag iron to splash outside iron mouth out.So all tapping outlet can be beaten by direct drilling rod during a lot of blast furnace casting, stokehold will be caused like this to tap a blast furnace larger with rod bit consumption.
In fact, the taphole drilling machine of general iron-smelting blast furnace manufacturer all have employed compressed air spraying, cools like this, also the dust such as the stemming in drill bit can be jetted away except ensureing to drilling rod and drill bit, extends the work-ing life of drilling rod and drill bit.Also some blast fumance producers are had to also add atomisation unit; namely the through hole in the middle of drilling rod was by being atomized the pressurized air of band certain pressure; both the dust in drill bit can have been purged; also can strengthen the cooling to drilling rod and drill bit; drill bit and drilling rod can be protected better like this; reduce the consumption of drilling rod and drill bit, iron mouth is also more easily opened.
In these working method, if tapping machine in front compressed air pressure is inadequate, the method for compressed air spraying or atomisation unit just can not be utilized well to reduce the consumption of drilling rod and drill bit.And if last adopt artificial method to blow to smash tapping outlet, then there is certain security risk, and iron mouth size is uncontrollable, easily stifled burnt, often need smash logical, affect tapping duration etc., and then affect furnace processor.
In fact, present blast fumance producer is mostly for ensureing safety in production, just think hard in the use of drilling rod and drill bit, strengthen the work-ing life of drill bit and drilling rod, and separately do not ward off shortcut and adopt other way to solve, just make equipment use according to original appropriate design more and safeguard, to increase access times, reduce and consume, reality can also consider other way on cost efficiency.Now, steel industry enters the phase in severe winter, and each big steel enterprise is all reducing costs by fair means or foul, to strengthen low imperial risk ability.
What tapped a blast furnace in stokehold is working properly, first normal operation that will ensure equipment, second will have the processes expend tool material such as enough drill rod specials and drill bit, the operation otherwise the opening that just cannot carry out normal hydraulic opening machine taps a blast furnace, if adopt artificial way when in the end beating tapping outlet simply, also there is certain potential safety hazard, particularly operative employee not have more easily to occur security incident during this emergent technical ability.
The drilling rod that general stokehold normally uses is all the middle Special high-strength drilling rod for two end band circular arc ripples screw threads of hollow bore, be connected with the bit shank of rock drill by coupling sleeve during work, front end is the target drill be threaded connection, from rock drill to chisel edge by the gas etc. of pressurized air or atomization, the stemming powder ash gone out drilling when tapping a blast furnace purges and cooling effect to front end drill bit.Generally to before finally will tapping a blast furnace, when drilling rod front end is rubescent, to last for saving drilling rod usage quantity, artificial method can be adopted to open, but have certain danger, particularly present most of blast furnace adopts the operator scheme of high top pressure, more easily occurs beyond thought security incident.
For ensureing the factors such as the safety of personnel, we drive drilling rod to carry out flushing and casting until iron mouth opens way with rock drill.Certainly will add production cost like this, therefore some manufacturer outsourcing can make some common drill rod special hammer drills and uses, with reduce special go out the production cost of driving iron.Certainly these costs making special hammer drill can be lower compared with drill rod special, but the compressed-air actuated φ 14mm through hole in the middle of only having lacked, overall cost declines also can not be a lot.
Utility model content
The technical problems to be solved in the utility model is: in order to solve the technical problem of the perishable and cost of idleness of drilling rod rapid wear in prior art, the utility model goes out driving iron before providing a kind of State of Blast Furnace.
The utility model solves the technical scheme that its technical problem adopts: go out driving iron before a kind of State of Blast Furnace, comprise drilling rod body, the front end of drilling rod body is fixedly connected with Deformed Steel Bars, and the rear end of drilling rod body has thread segment, and the external diameter of described drilling rod body is slightly larger than the external diameter of Deformed Steel Bars.
As preferably, described Deformed Steel Bars welds with the front end of drilling rod body.
In order to carry out the opening operation of smaller aperture due, the front end of described Deformed Steel Bars is taper bit.
As preferably, described Deformed Steel Bars is φ 32mm Deformed Steel Bars.
The beneficial effects of the utility model are, go out driving iron, have the following advantages before State of Blast Furnace of the present utility model:
1, adopt Deformed Steel Bars welded type to tap a blast furnace boring rod set, structure is simple, and processing and fabricating is convenient.
2, the threaded drillpipe part of the recyclable rear end of used drilling rod, can continue after finishing to reuse, as long as change the Deformed Steel Bars part of drilling rod body front end scaling loss.
3, because drilling rod nose threads diameter only has φ about 32mm, the opening operation of a smaller aperture due can also be carried out to on-the-spot iron mouth.
4, because welding thread steel type boring rod set expense of tapping a blast furnace is low, greatly can reduce production cost, also can alleviate workman's intensity, the opening that taps a blast furnace before guaranteeing State of Blast Furnace is kept the safety in production.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A place structural representation in Fig. 1.
Fig. 3 is B place structural representation in Fig. 1.
Fig. 4 is C place structural representation in Fig. 1.
In figure: 1, drilling rod body, 11, thread segment, 2, Deformed Steel Bars, 21, taper bit.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As Figure 1-4, it is embodiment of the present utility model, driving iron is gone out before a kind of State of Blast Furnace, comprise drilling rod body 1, the front end of drilling rod body 1 is welded with φ 32mm Deformed Steel Bars 2 (adopting the welding rod of J506 to weld), the rear end of drilling rod body 1 has thread segment 11, and the external diameter of drilling rod body 1 is slightly larger than the external diameter of Deformed Steel Bars 2, and the front end of Deformed Steel Bars 2 is taper bit 21.The length of drilling rod body 1 and the length of φ 32mm Deformed Steel Bars 2 can be formulated as required.
Going out the main effect of driving iron is transmit the rotary torque of rock drill, and bears the impact impact force of rock drill simultaneously, impels front end drill bit to travel forward and iron mouth is opened tap a blast furnace.In fact, much the situation of tapping a blast furnace also can beat tapping outlet when not having pressurized air to purge.
General drill rod materials has the alloy type such as 42CrMo, drilling rod also having more common 45# steel to do etc.Having a lot of manufacturing factory to make longer drilling rod is also adopt the method for inlaying welding to make, and is also mainly to reduce costs, because short drill pipe is more cheap.Use the middle the most flimsy position of generalized case to be position, drilling rod front end, threaded position, rear end can not be damaged, and can use repeatedly.If whole is thrown away waste seriously.
Therefore, the utility model improves jackrod structure for stokehold requirement of tapping a blast furnace, and starting is the smooth bar that have employed straight section, but it is bad to make effect, insufficient strength, flexible distortion; Be replaced by hexagonal steel afterwards, but welding and use bad equally, linearity can not ensure, tap a blast furnace boring can not controlling party to.It is also few that these two kinds of methods cause cost to decline, and waste is serious.
For above factor, finally have selected Deformed Steel Bars.Select its benefit to be not easily bending, easier welding operation, adopt J506 welding rod.And the little Deformed Steel Bars linearity of length can ensure service requirements, intensity is also very high, can reach the service requirements of drilling rod, and Master Cost own is not high yet.Meanwhile, tapered in the Front-end Design of Deformed Steel Bars, just can beat tapping outlet with the place in the drill-through iron leg oral pore hole of dedicated openings drill bit is comparatively easily secondary, eliminate target drill, such consumption just decreases naturally.Also can directly with of the present utility model go out driving iron tapping outlet, reduce iron notch aperture, can control iron mouth like this well, make the working of a furnace that it more easily adapts in particular cases.
Like this, drilling rod of the present utility model is just reliable, and quality is good, can play support and positioning action preferably, can also make the reworked drilling rod that required difference requires as required.During making afterwards uses, we can by reclaiming the Deformed Steel Bars of scaling loss, and excision scaling loss part, welds new Deformed Steel Bars again.
The Deformed Steel Bars length be welded with can need customization according to scene, need keep the planeness of former drill pipe section and Deformed Steel Bars during welding.
Special Circumstances in addition, tapping a blast furnace to add when needing is deep to a certain iron mouth degree of depth, also can be welded with the Deformed Steel Bars of a section longer voluntarily, than buy special drilling rod or hammer drill more convenient.
Start the end of the year in 2005, the jackrod structure form used before successively 2#, 3# stove State of Blast Furnace has been changed in transformation by technical solutions of the utility model, all carries out secondary opening and to tap a blast furnace operation, according to field condition, first time only gets into the degree of depth over half, leave certain iron mouth degree of depth, treat that iron mouth toasts, then carry out secondary operation, at this moment be replaced by and use drilling rod of the present utility model, both ensure that port quality like this, greatly can reduce production cost again, kill two birds with one stone.
A current 550m
3blast furnace, monthly stokehold consumes the Deformed Steel Bars about 10 tons altogether of φ 32mm, drilling rod L=1800mm's and L=3350mm's each about 30, the alloy bit consumption of φ 70 about 60.If all adopt alloy and drilling rod to operate, that just taps a blast furnace 16 times/day by normal requirement, and opening perfect condition is once only with a drill bit and drilling rod, and January is exactly the drilling rod of 480 L=3350mm by calculating in 30 days, 480 drill bits.Note: the Deformed Steel Bars rice of φ 32mm is heavily about 6.31Kg, the Deformed Steel Bars length be generally welded with is 3.5m.
Be 147 yuan by normally purchasing price drilling rod L=1800mm, drilling rod L=3350mm is 286 yuan, and the alloy bit of φ 70 is 53 yuan, and φ 32mm Deformed Steel Bars ton steel is 2600 yuan, and J506/ φ 4mm welding rod, consume as the 50Kg/ month, about 5.2 yuan/kilogram.
According to above statistic data, if we calculate monthly such blast furnace all use drill rod special, the opening drilling rod cost that need tap a blast furnace is 137280 yuan; And if the assembled welding of use the utility model adds the drilling rod of Deformed Steel Bars, then need to use the costs such as drilling rod to be 39250 yuan.Comprehensive above can estimate such blast furnace and monthly go out driving iron cost and can reduce by 98030 yuan.Certainly, annual just considerable, if all use drill rod special take multiplex go out driving iron expense about 1176360 yuan/year.Theoretic drilling rod consumption is less than actual amount in addition, and what adopt the utility model Deformed Steel Bars to add a part of drilling rod of welding is actual amount, estimates that composition is interior too much, therefore, and also large than estimation of benefit.If add the drill bit that taps a blast furnace of many losses, monthly about need many consumption costs 22260 yuan, the whole year is exactly many 267120 yuan.Two additions be exactly the whole year at least many consumption costs be 1443480 yuan.Therefore, going out driving iron before adopting State of Blast Furnace of the present utility model can save production cost greatly, increases economic efficiency.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (4)
1. go out driving iron before a State of Blast Furnace, it is characterized in that: comprise drilling rod body (1), the front end of drilling rod body (1) is fixedly connected with Deformed Steel Bars (2), the rear end of drilling rod body (1) has thread segment (11), and the external diameter of described drilling rod body (1) is slightly larger than the external diameter of Deformed Steel Bars (2).
2. go out driving iron before a kind of State of Blast Furnace as claimed in claim 1, it is characterized in that: described Deformed Steel Bars (2) welds with the front end of drilling rod body (1).
3. go out driving iron before a kind of State of Blast Furnace as claimed in claim 1, it is characterized in that: the front end of described Deformed Steel Bars (2) is taper bit (21).
4. go out driving iron before a kind of State of Blast Furnace as claimed in claim 1, it is characterized in that: described Deformed Steel Bars (2) is φ 32mm Deformed Steel Bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369224.XU CN204690026U (en) | 2015-06-01 | 2015-06-01 | Driving iron is gone out before a kind of State of Blast Furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520369224.XU CN204690026U (en) | 2015-06-01 | 2015-06-01 | Driving iron is gone out before a kind of State of Blast Furnace |
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| CN204690026U true CN204690026U (en) | 2015-10-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110628973A (en) * | 2018-08-23 | 2019-12-31 | 广东韶钢松山股份有限公司 | Treatment method for iron leakage of blast furnace iron notch |
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2015
- 2015-06-01 CN CN201520369224.XU patent/CN204690026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110628973A (en) * | 2018-08-23 | 2019-12-31 | 广东韶钢松山股份有限公司 | Treatment method for iron leakage of blast furnace iron notch |
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