CN205275634U - Hot change of converter bottom blowing drilling machine for air brick - Google Patents
Hot change of converter bottom blowing drilling machine for air brick Download PDFInfo
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- CN205275634U CN205275634U CN201521117020.3U CN201521117020U CN205275634U CN 205275634 U CN205275634 U CN 205275634U CN 201521117020 U CN201521117020 U CN 201521117020U CN 205275634 U CN205275634 U CN 205275634U
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Abstract
The utility model relates to a hot change of converter bottom blowing drilling machine for air brick, including motor, core bit, shaft coupling, still include ball, slide, dust cover, motor frame and slide sliding connection, the one end at the slide is fixed to ball's nut, and the one end of ball screw rod is fixed with to feed shakes the wheel, and the other end and motor frame axial fixity, radial relative the rotation are provided with the dust cover at core bit's lower extreme. The utility model relates to a hot change of converter bottom blowing drilling machine for air brick shakes the potential safety hazard of round setting at the afterbody of drilling machine, when having rootd out the operation with the feeding, adopt the ball slide effectively to improve drilling accuracy, install the dust cover additional and improve the operation execution conditions, realize carrying out production strictly in line with rules and regulations, change ordinary motor into the operating mode of frequency modulation motor, adaptable various complicacy, the high strength material is chooseed for use at crucial position such as shaft coupling, and the durability of whole device promotes greatly.
Description
Technical field
This utility model relates to steel-making mechanical equipment technical field, particularly to a kind of hot replacing air brick boring machine of bottom-blowing of converter.
Background technology
In the long history of research oxygen steelmaking, people once tested top blast, bottom blowing, the multiple oxygen blowing method such as side-blown, finally succeeded in developing in nineteen fifty-two top blown oxygen converter steelmaking process, became the new steelmaking process in the period of drawing and developed rapidly in the whole world. But in top-blown converter steelmaking method, main stirring power is still the boiling of carbon oxygen, and blowing decarburization in latter stage is slack-off, and stirring intensity of molten pool is inadequate. Particular with the increase of furnace capacity, this shortcoming is more prominent. For solving this problem, 1973 Austrian Edward (Eduard) start test and blow method for making steel again, it was demonstrated that Bottom Gas Stirring is conducive to making dephosphorization closer to balance. Due to top-bottom blowing superiority clearly and also top-blown converter to transform combined blown converter as relatively easy again, then emerge as emerging rapidly in large numbersBamboo shoots after a spring rain from early 1980s various steelmaking process of blowing again all over the world, China is under the advocating of Iron and Steel Research Geueral Inst, carry out multiple blowing steel commerical test in Shoudu Iron and Steel Co pilot plant 6t converter in nineteen eighty-two and obtained successfully, the same year Anshan iron and steel plant steel grind institute cooperate with new Fushun Steelworks, being also carried out answering of 6t converter to blow test and succeed, the development for China's combined blown converter provides experience.
It was verified that the core of combined blown converter smelting technique is the long-lived maintenance of low aeration element, and bottom-blowing air feed element can reach Tong Bu with furnace life and can meet technique needs it is crucial that control the thickness of furnace bottom well. The principle that steel mill follows is " rather rise and do not drop "; the maintenance of converter can reach this purpose within the specific limits; but after 3000 stoves; the resistance to material of furnace bottom of most converters has been etched very big thickness; especially the refractory brick around bottom blowing ventilated element cannot play a protective role again; furnace bottom air brick pore can be blocked by slag matter, it is necessary to is opened by Slag Layer brill with special boring machine, it is achieved the bottom blowing ventilated element that hot replacing is mated with the resistance to material of furnace bottom at that time. Owing to being hot online replacing, it is desirable to the activity duration, accurately, position is accurate in boring, coordinates tight, and therefore the boring machine of excellent performance is essential condition.
The boring machine that at present each refractory material producer uses is all the equipment using other industry, is not that degree of accuracy is not high, equipment intensity difference, uses midway just to break down, affect converter normal operation time a lot of exclusively for designed by bottom-blowing of converter quick change.
The shortcoming of regular drills:
1, selecting rack gear to control the device (wheel is shaken in feeding) of drill bit feeding in side, along with the feeding of drill bit, controllers is also constantly close to hot converter bottom, there is potential safety hazard.
2, borehole accuracy is not high, and borehole throw reaches more than 1.5-3.0mm.
3, select common electric machine can not frequency modulation penetration rate slow.
4, connecing shaft coupling be easily deformed and rupture, drilling efficiency is low.
Summary of the invention
The purpose of this utility model is to provide a kind of hot replacing air brick boring machine of bottom-blowing of converter, has eradicated potential safety hazard during operation; It is effectively improved borehole accuracy; Improve operation execution conditions, it is achieved carry out production strictly in line with rules and regulations; Change common electric machine into frequency conversion motor, be suitable for the operating mode of various complexity; The key positions such as shaft coupling select high intensity material, and the ruggedness of whole device is greatly promoted.
For achieving the above object, this utility model realizes by the following technical solutions:
A kind of hot replacing air brick boring machine of bottom-blowing of converter, including motor, hollow boring bit, shaft coupling; Also include ball-screw, slideway, dust cover, described electric machine stand and slideway are slidably connected, the nut of ball-screw is fixed on one end of slideway, one end of ball-screw screw rod is fixed with feeding and shakes wheel, the other end and electric machine stand axial restraint, diametrically rotate, the lower end of hollow boring bit is provided with dust cover.
Described motor is frequency control motor.
Described slideway is rolling guide.
Described dust cover is organ dust cover.
Compared with prior art, the beneficial effects of the utility model are:
1) this utility model selects ball-screw as feed mechanism, and feeding is shaken the wheel design afterbody at boring machine, and controllers can control the feeding of drill bit all the time below, it is not necessary to as in the past with drill bit constantly to (high temperature at the bottom of converter! ) close, improve usage safety performance.
2) this utility model is additionally arranged dust cover device, effectively improves operation execution conditions, it is achieved carry out production strictly in line with rules and regulations.
3) this utility model selects high-accuracy rolling guide rail, makes drill bit feeding steadily, do not wave, thus improving the precision (deviation < 1mm) of boring machine.
4) framework and shaft coupling key position, selects the materials such as 20Cr, 40Cr, 42CrMo, strengthens mechanical performance, is not susceptible to deformation and fracture, not only improves borehole accuracy, saves the time of frequently maintenance simultaneously.
5) this utility model Frequency Adjustable motor substitutes original common electric machine, it is achieved frequency conversion motor, reductor integral type, regulates electric machine frequency according to the difference of each steel mill Slag Layer hardness. Regular drills needs to complete heat 2-4 hour and changes task, and this utility model boring machine can complete heat for 1 hour and change task, the effective normal rhythm of production of steel-making ensureing steel mill.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hot replacing air brick boring machine of a kind of bottom-blowing of converter of this utility model;
In figure: wheel 2-ball-screw 3-slideway 4-motor 5-electric machine stand 6-shaft coupling 7-hollow boring bit 8-dust cover 9-frame 10-nut 11-nut fixed mount 12-slide block is shaken in 1-feeding
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in detail, it should be noted that enforcement of the present utility model is not limited to following embodiment.
As it is shown in figure 1, a kind of hot replacing air brick boring machine of bottom-blowing of converter, including motor 4, hollow boring bit 7, shaft coupling 6, described motor 4 output shaft connects hollow boring bit 7 by shaft coupling 6; Also include ball-screw 2, slideway 3, dust cover 8, described electric machine stand 5 is slidably connected with slideway 3, it is fixed with nut fixed mount 11 in one end of slideway 3, the nut 10 of ball-screw 2 is fixed on the nut fixed mount 11 of slideway one end, one end of ball-screw screw rod is fixed with feeding and shakes wheel 1, the other end and electric machine stand 5 axial restraint, diametrically rotate, the lower end of hollow boring bit 7 is provided with dust cover 8.
Described motor 4 is frequency control motor. Select variable ratio frequency changer motor and speed reducer integral type, regulate electric machine frequency according to the difference of each steel mill Slag Layer hardness.
Ball-screw screw rod is connected with electric motor stand 5 by bearing, in order to realize axial restraint between ball-screw screw rod and electric motor stand 5, radial rotating.
Described slideway 3 is rolling guide. Adopting high-precision rolling guide to coordinate high-precision ball-screw 2 that motor 4 is fed operation as slideway 3, borehole accuracy is greatly improved, and can make deviation < 1mm.
That the slideway 3 in the present embodiment adopts is high-precision rolling guide BGXH45BN and slide block B GXH45BL with matching, and electric machine stand 5 is fixing with slide block 12 to be connected, in order to realize the motor 4 slip on rolling guide. With rolling guide with the use of ball-screw 2 adopt TBI ball-screw SFIR4005.
Dust cover 8 adopts organ dust cover. It is effectively improved construction environment, the physical and mental health of protection workmen.
The lower end of boring machine is additionally provided with frame 9, and rolling guide is fixed in frame 9. Organ dust cover 8 is arranged on the lower end of hollow boring bit 7, and one end is connected with motor 4, and the other end is fixed in frame 9.
Frame 9 and shaft coupling 6 adopt the material processing and fabricatings such as 20Cr, 40Cr, 42CrMo, can strengthen mechanical performance, are not susceptible to deformation and fracture, effectively extend the service life of boring machine, reduce frequency of maintenance.
The hot replacing air brick boring machine of bottom-blowing of converter of the present utility model, uses in multiple domestic large-scale steel mills such as Anshan iron and steel plant, Laigang, Liu Gang, ripples steel, within 1 year, holes more than 20 time, and result of use is good, and fault rate is zero.
Claims (4)
1. the hot replacing air brick boring machine of bottom-blowing of converter, including motor, hollow boring bit, shaft coupling; It is characterized in that, also include ball-screw, slideway, dust cover, described electric machine stand and slideway are slidably connected, the nut of ball-screw is fixed on one end of slideway, one end of ball-screw screw rod is fixed with feeding and shakes wheel, the other end and electric machine stand axial restraint, diametrically rotate, the lower end of hollow boring bit is provided with dust cover.
2. a kind of hot replacing air brick boring machine of bottom-blowing of converter according to claim 1, it is characterised in that described motor is frequency control motor.
3. a kind of hot replacing air brick boring machine of bottom-blowing of converter according to claim 1, it is characterised in that described slideway is rolling guide.
4. a kind of hot replacing air brick boring machine of bottom-blowing of converter according to claim 1, it is characterised in that described dust cover is organ dust cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521117020.3U CN205275634U (en) | 2015-12-29 | 2015-12-29 | Hot change of converter bottom blowing drilling machine for air brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521117020.3U CN205275634U (en) | 2015-12-29 | 2015-12-29 | Hot change of converter bottom blowing drilling machine for air brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205275634U true CN205275634U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521117020.3U Active CN205275634U (en) | 2015-12-29 | 2015-12-29 | Hot change of converter bottom blowing drilling machine for air brick |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441622A (en) * | 2015-12-29 | 2016-03-30 | 鞍山市和丰耐火材料有限公司 | Drilling machine for changing air brick of converter at bottom blowing and thermal state |
| CN109371195A (en) * | 2018-10-29 | 2019-02-22 | 甘肃酒钢集团宏兴钢铁股份有限公司 | It is a kind of with the production assembly method of furnace labour synchronous converter bottom podwer gun |
-
2015
- 2015-12-29 CN CN201521117020.3U patent/CN205275634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441622A (en) * | 2015-12-29 | 2016-03-30 | 鞍山市和丰耐火材料有限公司 | Drilling machine for changing air brick of converter at bottom blowing and thermal state |
| CN109371195A (en) * | 2018-10-29 | 2019-02-22 | 甘肃酒钢集团宏兴钢铁股份有限公司 | It is a kind of with the production assembly method of furnace labour synchronous converter bottom podwer gun |
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