CN203602643U - Device for dismounting tuyere middle sleeve of blast furnace - Google Patents
Device for dismounting tuyere middle sleeve of blast furnace Download PDFInfo
- Publication number
- CN203602643U CN203602643U CN201320759125.3U CN201320759125U CN203602643U CN 203602643 U CN203602643 U CN 203602643U CN 201320759125 U CN201320759125 U CN 201320759125U CN 203602643 U CN203602643 U CN 203602643U
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- blast furnace
- pressing plate
- tuyere
- pull bars
- strongback
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Abstract
The utility model relates to a device for dismounting a tuyere middle sleeve of a blast furnace. The device comprises two pull rods, a positioning plate, a pressing plate and a jack. The two pull rods are relatively parallel to each other, a hook is arranged at the head of each pull rod, and mouths of the two hooks of the two pull rods are back to each other; the pressing plate is sleeved at the tails of the two pull rods, and the positioning plate is sleeved on the two pull rods and positioned between the pressing plate and the hooks; the jack is arranged between the positioning plate and the pressing plate. By adopting the device for dismounting the tuyere middle sleeve of the blast furnace of the utility model, materials required for dismounting are saved, the blowing-down time of the blast furnace is shortened, the dismounting work of furnace men is simplified, the labor intensity of the furnace men is reduced, and the working safety is improved. Moreover, the device for dismounting the tuyere middle sleeve of the blast furnace is simple in structure and convenient in operation.
Description
Technical field
The utility model relates to a kind of instrument that can carry out in the short period tuyere medium sleeve dismounting, especially relates to a kind of for dismantling the device of large tuyere medium jacket of blast furnace.
Background technology
Large blast furnace is a kind of airtight High Temperature High Pressure smelting vessel, air-supply arrangement blasts hot blast by the tuyere case being arranged on furnace wall in stove, tuyere case just can form blast furnace wind-engaging passage, plays the effect of the High Temperature High Pressure coal gas near cooling its firebrick lining, Sealing furnace.Tuyere case generally comprises tuyere big sleeve, tuyere medium sleeve and the tuyere small sleeve of cast iron.Wherein, tuyere medium sleeve plays vital effect therein, extend to the erosion that the part in stove not only will be born furnace high-temperature during use, also to bear washing away and the wearing and tearing of furnace charge, slag of high temperature flowing molten iron, cause damage, therefore for not affecting the normal work of large blast furnace, must change tuyere medium sleeve.At present, large blast furnace is changed the method that in wind, cover adopts: at the young cover of blast furnace staying post-tensioning air-out, then the edge sealing of tuyere medium sleeve is cut open, and the Inlet and outlet water tube head of tuyere medium sleeve is taken apart, blow off residuary water in chamber with pressurized air, with oxygen, the rear end of tuyere medium sleeve is melted away again, in tuyere medium sleeve, stretch into long draw subsequently, manually tuyere medium sleeve is pulled out.
Refer to Fig. 1, Fig. 1 is that prior art is for dismantling the device of large tuyere medium jacket of blast furnace.As we know from the figure, this tuyere small sleeve B, this tuyere medium sleeve C and this tuyere big sleeve D are successively set between furnace bottom and bosh on this furnace wall A inwall.In prior art, comprise long draw 11 for dismantling the device of large tuyere medium jacket of blast furnace, be fixed on movable bell 12 on this long draw 11, be fixed on the rope made of hemp 13 on movable bell 12 and the sleeper 14 for the fulcrum as long draw 11.One end of this long draw 11 is provided with a drag hook.In the time using prior art to be used for dismantling the device of large tuyere medium jacket of blast furnace, first, lay down the belly pipe being connected with tuyere big sleeve, on tuyere big sleeve, just there will be a port, the one end that subsequently long draw 11 is provided with to drag hook puts in tuyere medium sleeve C, and caught on the edge, upper end of tuyere medium sleeve C, will be welded on the sleeper 14 of tuyere big sleeve D inwall as the fulcrum of long draw 11 simultaneously.The movable bell 12 being connected with long draw 11 is under the draw of the rope made of hemp 13, and moving up and down of long draw 11, long draw 11 can be realized motion backward under the effect of external force simultaneously, thereby tuyere medium sleeve C is pulled out.But there is following shortcoming for the device of dismantling large tuyere medium jacket of blast furnace in prior art: troublesome poeration, and because tuyere medium sleeve is generally copper casting, therefore it has certain weight, using and as the tuyere device of large blast furnace, must be firmly fixed on the furnace wall inwall of large blast furnace, so tuyere medium sleeve be pulled out and need sufficient strength and expend the longer time.Particularly, change cover in and need approximately 8～9 hours consuming time, 1～2 ton of oxygen consumed tracheae, consume 5～10 cubes of oxygen, middle cover is burnt 200～350 kilograms, therefore prior art is many for dismantling the device materials consumption of large tuyere medium jacket of blast furnace, blast furnace staying and air port activity duration are long, and owing to being manual operation, increased workpeople's labour intensity, and exist potential safety hazard.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art with not enough, provides a kind of and can dismantle cover in large blast furnace wind within a short period of time, facilitates blast-furnace man's field-strip, saves material and blast furnace staying time, improves job security, reduces labour intensity, easy and simple to handle simple in structure for dismantling the stripping assembly of large tuyere medium jacket of blast furnace.
The utility model is achieved through the following technical solutions: a kind of for dismantling the device of large tuyere medium jacket of blast furnace, comprise two pull bars, strongback, pressing plate and screw block.Described two pull bar opposing parallel, its head is respectively equipped with a drag hook, and the two drag hook mouths of hook of described two pull bars are opposing; This pressing plate is set in the afterbody of described two pull bars, on sheathed described two pull bars of this strongback, and between this pressing plate and this drag hook; This screw block is arranged between this strongback and this pressing plate, and to make described two pull bars, toward its head to its afterbody, this direction stretches.The utility model is easy and simple to handle, simple in structure for dismantling the stripping assembly of large tuyere medium jacket of blast furnace, it can within a short period of time be dismantled in large blast furnace wind and overlaps, and it has been simplified blast-furnace man's field-strip, has saved and dismantled required material and shorten the blast furnace staying time, improved job security, reduced labour intensity.
Further, the afterbody of described two pull bars is respectively equipped with thread, and afterbody is respectively equipped with the set screw nut matching with described two threads.Described two threads coordinate and join with described two set screw nuts respectively, to fix the position of this pressing plate.This set screw nut and the cooperation of this thread make pressing plate outer end fastened, thereby fasten the screw block being placed between pressing plate.
Further, this device that is used for dismantling large tuyere medium jacket of blast furnace also comprises two fixed poles; Described two fixed poles are welded on respectively the relative both sides of this strongback, and strongback is fixed on the tuyere big sleeve of large blast furnace.Because this strongback is placed in tuyere big sleeve outer, one end of this two fixed pole is welded on respectively the relative both sides of this strongback, its the other end is welded on the outer of large cover in wind, to make this strongback tightly be fixed on this tuyere big sleeve outer, do not come off, thereby further make this screw block fastening, do not walk, further make the reactive force of this screw block pass to better described two pull bars.
Further, this device that is used for dismantling large tuyere medium jacket of blast furnace also comprises portable plate.This portable plate is set on described two pull bars, and determines between plate and this drag hook at this.This portable plate is conducive to maintain the opposing parallel position between described two pull bars, makes described two pull bars that the reactive force of its suffered screw block is passed to tuyere medium sleeve better, thereby tuyere medium sleeve is eased out in large cover from wind.
In order to understand better and to implement, describe the utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is for dismantling the device schematic diagram of large tuyere medium jacket of blast furnace in prior art.
Fig. 2 is the utility model for dismantling the schematic diagram of device of large tuyere medium jacket of blast furnace.
Embodiment
Refer to Fig. 2, Fig. 2 is the utility model for dismantling the schematic diagram of device of large tuyere medium jacket of blast furnace.In the utility model for dismantling the device of large tuyere medium jacket of blast furnace, comprise two pull bars 21, portable plate 22, strongback 23, pressing plate 24, two fixed poles 25 and screw block 26.Described two pull bar 21 opposing parallel place, this portable plate 22, this strongback 23 and this pressing plate 24 be set in successively described two pull bars 21 between.Described two fixed poles 25 are welded on respectively the relative both sides of this pressing plate 24.This screw block 26 is arranged between this strongback 23 and this pressing plate 24, and to make described two pull bars 25, toward its head to its afterbody, this horizontal direction stretches.Wherein, this portable plate 22 is sheathed on the middle part of described two pull bars 21, its two ends of being run through by described two pull bars 21 can be moved along described two pull bars 21, to keep described two pull bar 21 opposing parallel, thereby make described two pull bars 21 that the reactive force of its suffered screw block 26 is passed to tuyere medium sleeve better.This pressing plate 24 is sheathed on the afterbody of described two pull bars 21.This strongback 23 is sheathed on described two pull bars 21, and between this pressing plate 24 and this portable plate 22, with the fastening position that is placed on the screw block 26 between it, makes the reactive force of screw block 26 pass to better described two pull bars 21.
Particularly, the head of described two pull bars 21 is respectively equipped with a drag hook 211, and two drag hook 211 mouths of hook of described two pull bars 21 are opposing.Further, the afterbody of described two pull bars 21 is respectively equipped with thread, and the afterbody of described two pull bars 21 is respectively equipped with the set screw nut 212 matching with this thread.This thread and this set screw nut 213 coordinate and join, the cooperation of this set screw nut 212 and this thread makes pressing plate 24 outer ends fastened, thereby adjust and fasten be placed between strongback 23 and pressing plate 24 and screw block, make described two pull bars 21 be more vulnerable to the horizontal applied force of this screw block 26.
When blast furnace maintenance, first in air port, tuyere small sleeve is pulled out, again the edge sealing of tuyere medium sleeve is cut open, take apart with the Inlet and outlet water tube head by tuyere medium sleeve, and blow off the residual water in tuyere medium sleeve with pressurized air, at this moment, blast-furnace man first melts the furnace charge of tuyere medium sleeve rear end with oxygen, finally utilizes the utility model, for the device of dismantling large tuyere medium jacket of blast furnace, large blast furnace wind has been overlapped to field-strip.
Particularly, in the time using the utility model for dismantling the device of large tuyere medium jacket of blast furnace, large blast furnace wind cover to be dismantled, first the belly pipe being connected with tuyere big sleeve is laid down, on tuyere big sleeve, just there will be one can make described two pull bars 21 stretch into the port of tuyere case, just described two pull bar 21 levels are stretched in tuyere medium sleeve subsequently, and two drag hooks 211 of described two pull bar 21 heads are hooked to the relative both sides of tuyere medium sleeve level, then, moving active plate 22, adjusts its position, so that described two pull bar 22 opposing parallel, with be placed on the outer passage port less than strongback of this tuyere big sleeve by this strongback 23, and be welded on the outer of this tuyere big sleeve by being welded on the relative opposite side of a side welding with this strongback 23 in the fixed pole 25 of these strongback 23 relative both sides, thereby realize, this strongback 23 is fixed on the outer of this tuyere big sleeve, finally, move the position that is set in the pressing plate 24 between described two pull bar 21 afterbodys, and screw block 26 is placed between this strongback 23 and this pressing plate 25, rotate and coordinate with the thread of described two pull bar 21 afterbodys the nut 212 joining subsequently, this nut 212 gives this pressing plate 24 1 pressure, make pressing plate 24 and the common extruding jack 26 of strongback 23, fix the position of screw block 26, be that screw block 26 is positioned on the medullary ray of described two pull bars 21, keep the centerline of described two pull bars 21 and tuyere medium sleeve in parallel position simultaneously, now, the water inlet pipe of tuyere medium sleeve is connected, and open water inlet pipe, after the reaction that allows tuyere medium sleeve expand with heat and contract with cold, just close water inlet pipe.So, utilize screw block 26 the huge horizontal applied force of described two pull bar 21 is eased out tuyere medium sleeve from tuyere big sleeve, tuyere medium sleeve departs from behind home position, can be removed.
With respect to prior art, the utility model is reduced to 1～2 hour for a tuyere medium sleeve amount consuming time of device dismounting of dismantling large tuyere medium jacket of blast furnace, oxygen hose consumption is reduced to 0.2～0.5 ton, oxygen depletion amount is reduced to 0.5～1 cube, and the tuyere medium sleeve being disassembled is perfect, can be recovered.Therefore the utility model has been saved dismounting material requested for the device of dismantling large tuyere medium jacket of blast furnace, shorten the damping down time of blast furnace, simplify blast-furnace man's field-strip, reduce blast-furnace man's labour intensity, and improve the security of work, and this apparatus structure that is used for dismantling large tuyere medium jacket of blast furnace is simple, easy and simple to handle.
The utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or distortion are not departed to spirit and scope of the present utility model, if within these changes and distortion belong to claim of the present utility model and equivalent technologies scope, the utility model is also intended to comprise these changes and distortion.
Claims (4)
1. for dismantling a device for large tuyere medium jacket of blast furnace, it is characterized in that: comprise two pull bars, strongback, pressing plate and screw block; Described two pull bar opposing parallel, its head is respectively equipped with a drag hook, and the two drag hook mouths of hook of described two pull bars are opposing; This pressing plate is set in the afterbody of described two pull bars, on sheathed described two pull bars of this strongback, and between this pressing plate and this drag hook; This screw block is arranged between this strongback and this pressing plate.
2. according to claim 2 for dismantling the device of large tuyere medium jacket of blast furnace, it is characterized in that: the afterbody of described two pull bars is respectively equipped with thread, and afterbody is respectively equipped with the set screw nut matching with described two threads; Described two threads coordinate and join with described two set screw nuts respectively, to fix the position of this pressing plate.
3. according to claim 3 for dismantling the device of large tuyere medium jacket of blast furnace, it is characterized in that: also comprise two fixed poles; Described two fixed poles are welded on respectively the relative both sides of this strongback, strongback is fixed in the wind of large blast furnace and puts greatly.
4. according to claim 4 for dismantling the device of large tuyere medium jacket of blast furnace, it is characterized in that: also comprise portable plate; This portable plate is set on described two pull bars, and determines between plate and this drag hook at this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320759125.3U CN203602643U (en) | 2013-11-26 | 2013-11-26 | Device for dismounting tuyere middle sleeve of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320759125.3U CN203602643U (en) | 2013-11-26 | 2013-11-26 | Device for dismounting tuyere middle sleeve of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203602643U true CN203602643U (en) | 2014-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320759125.3U Expired - Fee Related CN203602643U (en) | 2013-11-26 | 2013-11-26 | Device for dismounting tuyere middle sleeve of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203602643U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531930A (en) * | 2014-12-25 | 2015-04-22 | 本钢板材股份有限公司 | Assembly for detaching blast-furnace tuyere sleeve |
| CN105714008A (en) * | 2014-12-01 | 2016-06-29 | 南京钢铁股份有限公司 | Method for replacing blast furnace tuyere medium sleeve |
| CN106702058A (en) * | 2016-12-28 | 2017-05-24 | 内蒙古包钢钢联股份有限公司 | Blast furnace replacement large sleeve drawing device |
| CN107723478A (en) * | 2016-08-11 | 2018-02-23 | 五冶集团上海有限公司 | A kind of big set of lateritic nickel ore blast-furnace tuyere removes device and preparation method thereof |
| CN110029199A (en) * | 2019-06-03 | 2019-07-19 | 安徽马钢设备检修有限公司 | Large blast furnace tuyere medium sleeve automatic disassembling device |
| CN110093470A (en) * | 2019-04-25 | 2019-08-06 | 唐山钢铁集团有限责任公司 | A kind of device and method of quick-replaceable tuyere medium jacket of blast furnace |
-
2013
- 2013-11-26 CN CN201320759125.3U patent/CN203602643U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714008A (en) * | 2014-12-01 | 2016-06-29 | 南京钢铁股份有限公司 | Method for replacing blast furnace tuyere medium sleeve |
| CN104531930A (en) * | 2014-12-25 | 2015-04-22 | 本钢板材股份有限公司 | Assembly for detaching blast-furnace tuyere sleeve |
| CN107723478A (en) * | 2016-08-11 | 2018-02-23 | 五冶集团上海有限公司 | A kind of big set of lateritic nickel ore blast-furnace tuyere removes device and preparation method thereof |
| CN106702058A (en) * | 2016-12-28 | 2017-05-24 | 内蒙古包钢钢联股份有限公司 | Blast furnace replacement large sleeve drawing device |
| CN110093470A (en) * | 2019-04-25 | 2019-08-06 | 唐山钢铁集团有限责任公司 | A kind of device and method of quick-replaceable tuyere medium jacket of blast furnace |
| CN110093470B (en) * | 2019-04-25 | 2024-01-16 | 唐山钢铁集团有限责任公司 | Device and method for quickly replacing sleeve in blast furnace tuyere |
| CN110029199A (en) * | 2019-06-03 | 2019-07-19 | 安徽马钢设备检修有限公司 | Large blast furnace tuyere medium sleeve automatic disassembling device |
| CN110029199B (en) * | 2019-06-03 | 2024-02-02 | 安徽马钢设备检修有限公司 | Automatic dismounting device for middle sleeve of large blast furnace tuyere |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 Termination date: 20151126 |