CN103924016B - A kind of method changing the large cover of cinder monkey - Google Patents
A kind of method changing the large cover of cinder monkey Download PDFInfo
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- CN103924016B CN103924016B CN201410157842.8A CN201410157842A CN103924016B CN 103924016 B CN103924016 B CN 103924016B CN 201410157842 A CN201410157842 A CN 201410157842A CN 103924016 B CN103924016 B CN 103924016B
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- cinder notch
- large cover
- cover
- cinder
- flange seat
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Abstract
The invention provides a kind of method changing the large cover of cinder monkey.The large cover of described cinder notch is connected with the flange seat be arranged on blast furnace, wherein, the stove outer end of the large cover of described cinder notch is set in the tubing connection section of described flange seat, and the stove outer end of the large cover of described cinder notch and the contact surface of described flange seat are cone surface, said method comprising the steps of: large for cinder notch cover is divided into multiple part by the generatrix direction along the large cover of cinder notch, the face area of described multiple part is all less than 1/2 of the large cover face area of cinder notch, and forms space between two parts at least in described multiple part; A part in described two parts is unloaded from blast furnace, then the rest part in described multiple part is unloaded from blast furnace.Effectively shorten the time unloading the large cover of cinder notch according to method of the present invention, achieve efficient, the safe large cover of replacing cinder notch.
Description
Technical field
The invention belongs to the flushing and casting technical field of blast furnace, more particularly, relate to a kind of method changing the large cover of cinder monkey.
Background technology
The cinder notch device of blast furnace is the critical process part in Iron and Steel Production on Iron Works, generally includes 3 to 4 covers.Fig. 1 is the schematic diagram of certain cinder monkey device in prior art; it comprise 4 covers (namely slag tuyere 1, cinder notch three overlap 2, cinder notch two overlap 3 and the large cover 4 of cinder notch); the large cover of cinder notch and cinder notch two overlap owing to there being bricking to protect; directly do not contact with molten iron; thermal load is lower; thus centre can be adopted to be embedded with the cast-iron structure of circulating cooling water pipe; cinder notch three cover directly contacts with slag iron with slag tuyere; thermal load is large; adopt the copper cavity type structure that thermal conductivity is good, supplied water in described cavity by water-cooled tube 5.Contact surface between each cover is all processed into cone surface, makes to contact with each other tightly, is convenient to dismounting and change again.The large cover 4 of cinder notch is connected with the flange seat 9 be fixed on blast furnace 8, wherein, in the tubing connection section that the stove outer end of the large cover of cinder notch 4 is set in flange seat 9 and the stove outer end of the large cover 4 of cinder notch and the contact surface of flange seat 9 are cone surface, stove the inner of the large cover 4 of cinder notch is set in the outside that cinder notch two overlaps 3, and the stove of cinder notch large cover 4 the inner directly contacts with body of heater.The blast furnace of high top pressure operation, there is huge thrust inside, cinder notch respectively can be overlapped and extrude outside stove, therefore added on each cover hold down assembly (or being called the tight assembly of lining), as shown in Figure 1, the large cover of cinder notch holds down assembly and comprises U-shaped pin 6 and fixed wedge 7, wherein, the opening of pin 6 arranges towards flange seat and is blocked by the tube wall of flange seat, on the end face that two supporting legs of pin 6 act on the stove outer end of the large cover 4 of cinder notch respectively and on body of heater 8.
Change the operation of cinder notch large cover be the damaged or scaling loss of the large cover of cinder monkey seriously after, the routine operation carried out under damping down state, but there is shortcomings such as changing difficult and replacing construction length in the current large cover of cinder notch of changing, have a strong impact on blast furnace normally to produce, therefore, the method that the large cover of a kind of quick-replaceable cinder notch is provided is needed badly.
Summary of the invention
For the deficiencies in the prior art, an object of the present invention is to solve in above-mentioned prior art the one or more problems existed.Such as, an object of the present invention is to provide a kind of method that can complete the large cover operation of cinder notch fast.
To achieve these goals, the invention provides a kind of method changing the large cover of cinder monkey.The large cover of described cinder notch is connected with the flange seat be arranged on blast furnace, wherein, the stove outer end of the large cover of described cinder notch is set in the tubing connection section of described flange seat, and the stove outer end of the large cover of described cinder notch and the contact surface of described flange seat are cone surface, said method comprising the steps of: large for cinder notch cover is divided into multiple part by the generatrix direction along the large cover of cinder notch, the face area of described multiple part is all less than 1/2 of the large cover face area of cinder notch, and forms space between two parts at least in described multiple part; A part in described two parts is unloaded from blast furnace, then the rest part in described multiple part is unloaded from blast furnace.
Change an embodiment of the method for the large cover of cinder monkey according to the present invention, the first part in described two parts is positioned at above the horizontal center line of the large cover of described cinder notch.
Change an embodiment of the method for the large cover of cinder monkey according to the present invention, the large cover of described cinder notch is split to form described first part, second section and the space between described first part and second section in the direction along the horizontal center line being parallel to the large cover of described cinder notch.
Change an embodiment of the method for the large cover of cinder monkey according to the present invention, divided three parts of the large cover of described cinder notch, and all form space between the first part in described three parts and all the other two parts in described three parts.
An embodiment of the method for the large cover of cinder monkey is changed according to the present invention, a part in described two parts is unloaded from blast furnace, again the step that the rest part in described multiple part unloads from blast furnace is comprised: described first part to fall in described space and with after described flange seat is separated with body of heater, described first part shifted out to the direction away from blast furnace in the tubing connection section of described flange seat; Rest part in described multiple part under external force to away from described flange seat tubing connection section tube wall direction motion and with after described flange seat is separated with body of heater, the rest part in described multiple part is shifted out to the direction away from blast furnace in the tubing connection section of described flange seat.
An embodiment of the method for the large cover of cinder monkey is changed according to the present invention, by drill rod being inserted in the contact surface of rest part in described multiple part and described flange seat, then lever up rest part in described multiple part with make the rest part in described multiple part to away from described flange seat tubing connection section tube wall direction motion and be separated with body of heater with described flange seat.
An embodiment of the method for the large cover of cinder monkey is changed according to the present invention, described multiple parts by large for cinder notch cover comprise from the step shifted out to the direction away from blast furnace in the tubing connection section of flange seat: adopt flexible filaments rope to tack the stove outer end of the large cover of described cinder notch, then pulled out to the direction away from blast furnace from the tubing connection section of described flange seat by large for described cinder notch cover.
Change an embodiment of the method for the large cover of cinder monkey according to the present invention, form described space by the mode of fusing segmentation.
Change an embodiment of the method for the large cover of cinder monkey according to the present invention, form at least two fritting holes at the stove outer end end face of the large cover of cinder notch; The natural gas tube being connected with Sweet natural gas lighted and is placed in described fritting hole, then the oxygen hose being connected with oxygen being placed in described fritting hole; After described oxygen hose is lighted and the flame that described oxygen hose and natural gas tube mixed firing produce is enough to the jacket wall of large for described cinder notch cover to burn along wall thickness direction, by described natural gas tube and oxygen hose mobile the tube wall of large for described cinder notch cover is broken and forms described multiple part and described space to stove the inner of the large cover of cinder notch along the generatrix direction of the large cover of described cinder notch.
An embodiment of the method for the large cover of cinder monkey is changed according to the present invention, the quantity in described fritting hole is two, the diameter in described fritting hole is 20 ~ 25mm, and the distance between the line of described two fritting hole circle hearts and the horizontal center line of the large cover of described cinder notch is 20 ~ 30mm.
Change an embodiment of the method for the large cover of cinder monkey according to the present invention, electric soldering pliers can be adopted to form fritting hole at the stove outer end end face of the large cover of described cinder notch.
Change an embodiment of the method for the large cover of cinder monkey according to the present invention, before described method can also be included in the step of the large cover of described segmentation cinder notch, stop supplying water to the large cover of described cinder notch and utilizing pressurized air to dry up residual water in the large cover of described cinder notch.
Compared with prior art, the present invention shortens the time unloading the large cover of cinder notch effectively, finally achieves efficient, the safe large cover of replacing cinder notch.
Accompanying drawing explanation
By the description carried out below in conjunction with accompanying drawing, above and other object of the present invention and feature will become apparent, wherein:
Fig. 1 is the side view cutaway drawing of certain cinder monkey device in prior art.
Fig. 2 is the left view of Fig. 1, wherein illustrate only the large cover of cinder notch, flange seat and large cooperation of overlapping between the tight assembly of lining.
Description of reference numerals:
L-slag tuyere, 2-cinder notch three overlaps, and 3-cinder notch two overlaps, the large cover of 4-cinder notch, 5-water-cooled tube, 6-U type pin, 7-fixed wedge, 8-blast furnace, 9-flange seat, and 10,11-fritting hole.
Embodiment
Hereinafter, the method according to the large cover of replacing cinder monkey of the present invention will be described by reference to the accompanying drawings in detail with exemplary embodiment.
Fig. 1 is the side view cutaway drawing of certain cinder monkey device in prior art.Fig. 2 is the left view of Fig. 1, wherein illustrate only the large cover of cinder notch, flange seat and the cooperation wherein between the tight assembly of a set of large cover lining.
When the large cover of the cinder notch in the cinder monkey device shown in Fig. 1 and Fig. 2 is damaged or after scaling loss, adopt following methods to complete the replacing of the large cover of cinder notch, specifically comprise following operation:
(1) after blast furnace staying, the large cover 4 of cinder notch is cut off the water supply process, namely stop supplying water to the large cover of cinder notch, then, dry up the residual water in the large cover of cinder notch with pressurized air.Object of this step operation is the water flowing cooling stopping cinder notch large cover, and the high temperature be beneficial in State of Blast Furnace carries out nature heating, intensification to the large cover of cinder notch, thus is beneficial to slag mouth and overlaps greatly.
(2) slag tuyere 1, cinder notch three are overlapped 2 and cinder notch two overlap 3 and unload successively, and unclamp the tight assembly of large cover lining, this step is routine operation of the prior art, does not repeat them here its specific operation process.
(3) (or cutting) large cover of cinder notch is split.With electric soldering pliers fusing formation two fritting holes 10 and 11 on the end face of the stove outer end of the large cover 4 of cinder notch, the diameter in fritting hole is 20 ~ 25mm, and the distance between the horizontal center line of the line in the center of circle in fritting hole 10 and 11 and the large cover 4 of cinder notch is 20 ~ 30mm.It should be noted that, the end face of the large cover of cinder notch is annular, and the horizontal center line of the large cover of cinder notch refers to the straight line at the diameter place of the horizontal direction of this annulus, namely crosses the center of circle of cinder notch large cover end face and the straight line extended to horizontal direction.
The natural gas tube being connected with Sweet natural gas is lighted and is placed in fritting hole, then the oxygen hose being connected with oxygen is placed in fritting hole, the main component of Sweet natural gas is methane (accounting for more than 90%), when the flame temperature of methyl hydride combustion reaches the fusing point of the material manufacturing oxygen hose, such as, oxygen hose is made up of soft steel, its fusing point is 1400 DEG C, and when the temperature that natural gas tube burning produces reaches more than 1400 DEG C, oxygen hose starts fusing, be called and take pyrogene merit, now oxygen hose is lighted.By making oxygen hose and natural gas tube synchronized mixes burn, heat can be increased and improve combustion flame temperature, being conducive to the burn-off rate accelerating the large cover of cinder notch, thus fast the tube wall of large for cinder notch cover being burnt.In addition, the mode that oxygen hose and natural gas tube synchronized mixes are burnt can make the flame brightness of combustion zone higher, is beneficial to a large amount of tobacco of eliminating burning generation to the interference of operator's sight line.
Treat that oxygen hose is lighted, and after the flame that oxygen hose and natural gas tube mixed firing produce is enough to the jacket wall of large for cinder notch cover to burn along wall thickness direction, start with fritting hole for fusing cutting starting point and along the generatrix direction of the large cover of cinder notch to the inner mobile natural gas tube of stove of the large cover of cinder notch and oxygen hose, so that the tube wall of large for cinder notch cover is broken as two portions, i.e. first part and second section, wherein, first part is positioned at the top of second section along the short transverse of blast furnace.
In the present embodiment, the effect that first fritting forms fritting hole is for the follow-up large cover of cinder notch that breaks is prepared, and when making follow-up natural gas tube and oxygen hose burning, heat concentrates on around fritting hole, saves slag mouth and overlaps the time greatly.And be that the end face of the first part of the large cover of cinder notch making to break is for being slightly less than 1/2 annulus (namely the face area of first part is less than 1/2 of the large cover face area of cinder notch) by the reason of 20 ~ 30mm below the horizontal center line being arranged on lower than the large cover of cinder notch in fritting hole 10 and 11, the end face of second section is for being less than 1/2 annulus (namely the face area of second section is less than 1/2 of the large cover face area of cinder notch), thus form space between the first part of the large cover of cinder notch and second section, the first part of the large cover of cinder notch is made to enter in described space at himself sink under gravity thus to be separated with body of heater with flange seat 9, be convenient to by flexible filaments rope (such as wireline) first part of large for cinder notch cover entangled and shift out to the direction away from blast furnace from the tubing connection section of flange seat, thus large for cinder notch cover is unloaded from blast furnace, certainly, if when there is residue between the first part of the large cover of cinder notch and flange seat and make the first part of the large cover of cinder notch rely on self gravitation to be not enough to, first can clear up residue or move thus be separated with body of heater with flange seat 9 to make the first part of the large cover of cinder notch to the direction away from flange seat 9 tubing connection section tube wall by the extra external force that applies, such as, external force is applied to make the first part of the large cover of cinder notch to fall in described space thus to be separated with body of heater with flange seat 9 with in the contact surface between flange seat 9 by the first part that drill rod inserted the large cover of cinder notch.In addition, because the second section of the large cover of cinder notch fits tightly with flange seat 9 under self gravitation effect, and between the large cover of cinder notch and flange seat, also may there is residue, therefore, need drill rod to insert in the contact surface between the second section of the large cover of cinder notch and flange seat, then the second section levering up the large cover of cinder notch moves to make it to the direction away from flange seat tubing connection section tube wall and is separated with body of heater with flange seat, and then tacks the second section of the large cover of cinder notch with flexible filaments rope and it shifted out to the direction away from blast furnace from the tubing connection section of flange seat.The end face of the second section of large for cinder notch cover is controlled for be less than 1/2 annulus make above-mentioned lever up the second section of cinder notch large cover time have the rising space, and it is become easy realization from the operation that blast furnace is left behind by less the making of the second section of the large cover of cinder notch.
(4) first part to fall in described space and with after flange seat is separated with body of heater, first part is unloaded from blast furnace, such as, tacks first part and it leaves behind from blast furnace by force by wireline; Second section under external force to away from flange seat direction motion and with after flange seat is separated with body of heater, second section is unloaded from blast furnace.
(5) the large cover of new cinder notch is installed.
At above-described embodiment by (being namely parallel to the direction of cinder notch large cover horizontal center line) in the horizontal direction and splitting the large cover of cinder notch to form first part and second section and form space between described first part and described second section, the face area of first part is less than 1/2 of cinder notch large cover face area and the face area of second section is less than 1/2 of the large cover face area of cinder notch, can sink to entering described space to make first part under Gravitative Loads thus be separated with body of heater with flange seat 9, it is convenient to unload from blast furnace, and second section has the space of rising in the process levered up by drill rod thus be separated with body of heater with flange seat 9, it is convenient to unload from blast furnace.
If the end face of the first part of the large cover of cinder notch is greater than 1/2 annulus and also form space between the first part and second section of the large cover of cinder notch, but because described space can not sink to entering (such as in the first part of the large cover of cinder notch, sink under self gravitation effect), then the first part of the large cover of cinder notch is not easy to unload.If the end face of the second section of the large cover of cinder notch is greater than 1/2 annulus, and space is also form between the first part and second section of the large cover of cinder notch, but the second section of the large cover of cinder notch is not easy to be levered up under drill rod effect, thus the second section of the large cover of cinder notch effectively can not be separated with body of heater with flange seat, the second section of the large cover of cinder notch is made to be not easy to unload.
More than illustrate the operation that large for cinder notch cover is divided into first part and second section by the mode split by fusing, but the present invention is not limited thereto, other partitioning schemes can also be adopted to form described first part, second section and the space between it.Such as, in the horizontal direction large for cinder notch cover is cut into four parts, wherein after left and right two part of blast furnace short transverse between first part and second section is removed, forms described space.Certainly, in actual production, the large and Heavy Weight of the large cover size of cinder notch, thus preferably adopts the mode of described fusing segmentation.
In addition, the present invention is also not limited to form described first part, first part and described space in the horizontal direction.Stove outer end due to the large cover of cinder notch is set in the tubing connection section of described flange seat, and the outside wall surface of stove outer end of the large cover of cinder notch and the inner-wall surface of the tubing connection section of flange seat fit tightly, in addition, the outside wall surface of stove the inner of the large cover of cinder notch and the furnace lining (such as bricking) of body of heater be also fit tightly and part slag can be there is enter and form slag crust between the large cover of cinder notch and the contact surface of furnace lining thus large for cinder notch cover and furnace lining are bonded together, thus it is very difficult for large for cinder notch cover will being unloaded from blast furnace, the present invention only needs the generatrix direction along the large cover of cinder notch large for cinder notch cover to be divided into multiple part and forms space between two parts at least in described multiple part, the face area of every part of the large cover of cinder notch after simultaneously controlling segmentation is all less than 1/2 of the large cover face area of cinder notch, all can be separated with body of heater with flange seat to make each part of the large cover of cinder notch after splitting, and then can be drawn out along the direction away from blast furnace.
Above, forming space between the first and second while of in the horizontal direction large for cinder notch cover segmentation being formed first part, first part is an optimal way of the present invention, split in the manner described above, first part can fall in described space and be separated with body of heater from flange seat under Gravitative Loads, alleviates workload.
In addition, as the preferred mode of another kind, large for cinder notch cover can be divided into three parts, wherein, between all the other two parts above the horizontal center line of the large cover of cinder notch also and in described three parts of a part in described three parts, form space.Thus the part be arranged in above cinder notch large cover horizontal center line can fall to described space thus be separated with body of heater with flange seat under Gravitative Loads, alleviates workload.Such as, in above-mentioned steps (3), with electric soldering pliers fusing formation three fritting holes on the end face of the stove outer end of the large cover 4 of cinder notch, three fritting holes are evenly arranged along cinder notch large blind roaster outer end end face circumference, and wherein two fritting holes are positioned at above the large cover sea line of cinder notch, and the angle between the line in the center of circle of these two fritting holes and cinder notch large blind roaster outer end end face and the large cover sea line of cinder notch is respectively 30 ° and 150 °, line between the center of circle of i.e. three fritting holes and cinder notch large blind roaster outer end end face forms the shape being similar to " Y ", then from these three fritting holes, along cinder notch large cover generatrix direction, large for cinder notch cover is broken formation three parts.
It should be noted that, the present invention is the method for changing the large cover of cinder notch, with cinder notch device, itself there is several slag notch jacket and there is no direct relation, namely the large cover of cinder notch had in the cinder notch device of four covers changed shown in above-mentioned Fig. 1 is not limited to, such as, replacing can also be used for there is the large cover of cinder notch in the cinder notch device of three covers (in the large cover of cinder notch, cinder notch cover and slag tuyere).
In order to understand above-mentioned exemplary embodiment of the present invention better, below in conjunction with concrete example, it is further described.
One day, certain blast furnace carries out scheduled overhaul, prepares to change the large cover of certain cinder notch.7:50am blast furnace staying, the large interplanting of cinder notch is cut off the water supply process, then, water more than drying up in the large cover of cinder notch with pressurized air.The low slag tuyere of 8:15am and middle cover are successively left behind, and unclamp the tight assembly of large cover lining.9:00am starts the circular hole melting two diameter 25mm on the end face of the large blind roaster outer end of cinder notch apart from the position electric soldering pliers of 25mm below its horizontal center line.Adopting the natural gas tube of diameter 10mm to kindle a fire is placed in the circular hole of fusing, the oxygen hose of diameter 15mm is placed in the circular hole of fusing, after oxygen hose takes fire in stove, along the generatrix direction of the large cover of cinder notch to the inner mobile natural gas tube of stove of the large cover of cinder notch and oxygen hose, the jacket wall of large for cinder notch cover to burn and to burn the stove of the large cover of cinder notch inner always from circular hole by the flame produced to make oxygen hose and natural gas tube mixed firing, thus breaking the sleeve of large for cinder notch cover to the large blind roaster the inner of cinder notch from described circular hole place, namely two portions are cut into, 9:50am completes slag mouth and has overlapped greatly.The large cover of 10:10am cinder notch is left behind, and the large cover of the new cinder notch of 12:00am is changed complete.
In sum, the present invention is by being divided into multiple part by large for cinder notch cover, and form space between certain two part at least wherein, and the face area controlling multiple part is all less than 1/2 of the large cover face area of cinder notch, multiple part effectively can be separated with body of heater with flange seat, reduce resistance when being left behind, shorten the object of the time changing the large cover of cinder notch, obtain good actual production effect.
Although above by describing the present invention in conjunction with exemplary embodiment, it will be apparent to those skilled in the art that when not departing from the spirit and scope that claim limits, various amendment and change can be carried out to exemplary embodiment of the present invention.
Claims (8)
1. change the method for the large cover of cinder monkey for one kind, the stove outer end of the large cover of described cinder notch is set in the tubing connection section of the flange seat be arranged on blast furnace, and the stove outer end of the large cover of described cinder notch and the contact surface of described flange seat are cone surface, it is characterized in that, said method comprising the steps of:
Large for cinder notch cover is divided into multiple part by the generatrix direction along the large cover of cinder notch, and the face area of described multiple part is all less than 1/2 of the large cover face area of cinder notch, and forms space between two parts at least in described multiple part;
A part in described two parts is unloaded from blast furnace, then the rest part in described multiple part is unloaded from blast furnace,
Wherein, large for cinder notch cover is divided into multiple part, and the step forming space between two parts at least in described multiple part comprises:
Form at the stove outer end end face of the large cover of cinder notch two fritting holes that diameter is 20 ~ 25mm, and the distance between the line of described two fritting hole circle hearts and the horizontal center line of the large cover of described cinder notch is 20 ~ 30mm;
The natural gas tube being connected with Sweet natural gas lighted and is placed in described fritting hole, then the oxygen hose being connected with oxygen being placed in described fritting hole;
After described oxygen hose is lighted and the flame that described oxygen hose and natural gas tube mixed firing produce is enough to the jacket wall of large for described cinder notch cover to burn along wall thickness direction, by described natural gas tube and oxygen hose mobile the tube wall of large for described cinder notch cover is broken and forms described multiple part and described space to stove the inner of the large cover of cinder notch along the generatrix direction of the large cover of described cinder notch.
2. the method for the large cover of replacing cinder monkey according to claim 1, is characterized in that, the first part in described two parts is positioned at above the horizontal center line of the large cover of described cinder notch.
3. the method for the large cover of replacing cinder monkey according to claim 2, it is characterized in that, the large cover of described cinder notch is split to form described first part, second section and the space between described first part and second section in the direction along the horizontal center line being parallel to the large cover of described cinder notch.
4. the method for the large cover of replacing cinder monkey according to claim 2, is characterized in that, divided three parts of the large cover of described cinder notch, all forms space between all the other two parts in the first part in described three parts and described three parts.
5. the method for the large cover of replacing cinder monkey according to claim 2, is characterized in that, a part in described two parts is unloaded from blast furnace, then the step that the rest part in described multiple part unloads from blast furnace is comprised:
Described first part to fall in described space and with after described flange seat is separated with body of heater, described first part is shifted out to the direction away from blast furnace in the tubing connection section of described flange seat;
Rest part in described multiple part under external force to away from described flange seat tubing connection section tube wall direction motion and with after described flange seat is separated with body of heater, the rest part in described multiple part is shifted out to the direction away from blast furnace in the tubing connection section of described flange seat.
6. the method for the large cover of replacing cinder monkey according to claim 5, it is characterized in that, by drill rod being inserted in the contact surface of rest part in described multiple part and described flange seat, then lever up rest part in described multiple part with make the rest part in described multiple part to away from described flange seat tubing connection section tube wall direction motion and be separated with body of heater with described flange seat.
7. the method for the large cover of replacing cinder monkey according to claim 5, it is characterized in that, described multiple parts by large for cinder notch cover comprise from the step shifted out to the direction away from blast furnace in the tubing connection section of flange seat: adopt flexible filaments rope to tack the stove outer end of the large cover of described cinder notch, then pulled out to the direction away from blast furnace from the tubing connection section of described flange seat by large for described cinder notch cover.
8. the method for the large cover of replacing cinder monkey according to claim 1, is characterized in that, forms described space by the mode of fusing segmentation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410157842.8A CN103924016B (en) | 2014-04-18 | 2014-04-18 | A kind of method changing the large cover of cinder monkey |
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| CN201410157842.8A CN103924016B (en) | 2014-04-18 | 2014-04-18 | A kind of method changing the large cover of cinder monkey |
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| CN103924016B true CN103924016B (en) | 2015-10-14 |
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| CN104087695B (en) * | 2014-07-24 | 2016-04-20 | 攀钢集团攀枝花钢钒有限公司 | For the manufacture method that the mud of cinder monkey overlaps |
| CN108546792B (en) * | 2018-06-13 | 2019-10-25 | 新兴铸管股份有限公司 | A kind of replacing options for the big set of blast furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08283808A (en) * | 1995-04-12 | 1996-10-29 | Nippon Steel Corp | Main iron trough for blast furnace |
| CN201801532U (en) * | 2010-08-24 | 2011-04-20 | 中钢集团洛阳耐火材料研究院有限公司 | Main runner of iron-storing iron runner of single-taphole blast furnace |
-
2014
- 2014-04-18 CN CN201410157842.8A patent/CN103924016B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08283808A (en) * | 1995-04-12 | 1996-10-29 | Nippon Steel Corp | Main iron trough for blast furnace |
| CN201801532U (en) * | 2010-08-24 | 2011-04-20 | 中钢集团洛阳耐火材料研究院有限公司 | Main runner of iron-storing iron runner of single-taphole blast furnace |
Non-Patent Citations (1)
| Title |
|---|
| 张殿友.更换渣口装置.《高炉炉前工》.冶金工业出版社,1978,第111-114页. * |
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