CN114836590A - Auxiliary device and method for gunning steel tapping hole of converter - Google Patents
Auxiliary device and method for gunning steel tapping hole of converter Download PDFInfo
- Publication number
- CN114836590A CN114836590A CN202210347881.9A CN202210347881A CN114836590A CN 114836590 A CN114836590 A CN 114836590A CN 202210347881 A CN202210347881 A CN 202210347881A CN 114836590 A CN114836590 A CN 114836590A
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- China
- Prior art keywords
- tapping hole
- gunning
- hole
- steel
- tap
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/44—Refractory linings
- C21C5/445—Lining or repairing the taphole
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4653—Tapholes; Opening or plugging thereof
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/44—Refractory linings
- C21C5/445—Lining or repairing the taphole
- C21C2005/446—Dry linings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention belongs to the technical field of steel making, and particularly relates to a gunning steel-tapping hole auxiliary device and a gunning steel-tapping hole auxiliary method, which comprise the following steps: moving the trolley; the gunning gun support frame is vertically arranged on one side of the top end of the mobile trolley, and the gunning gun support frame is arranged on the top end, the upper part of one side and the lower part of the other side of the vertical rod; one end of the hydraulic telescopic rod is movably connected to the moving trolley; tapping hole dead lever, one end swing joint is on the top of montant, the middle part swing joint of tapping hole dead lever has hydraulic telescoping rod's the other end, install the spacing fixed bayonet socket of tapping hole on the tapping hole dead lever, the notch bottom swing joint that tapping hole dead lever rear side was seted up has the push rod rack. The gunning steel-tapping hole auxiliary device and the gunning steel-tapping hole auxiliary method can reduce physical force consumed by an operator for supporting the gunning gun, reduce working strength, avoid refractory materials from flowing into the steel-tapping hole, limit a rotating angle, increase accuracy in the using process and reduce errors.
Description
Technical Field
The invention relates to the technical field of steel making, in particular to a gunning steel-tapping hole auxiliary device and a gunning steel-tapping hole auxiliary method.
Background
The converter is the main equipment for domestic steel-making production, and after the converter finishes steel making, molten steel in the converter needs to be poured into a steel ladle, and at the moment, the molten steel needs to flow into the steel ladle through a steel outlet. Due to the scouring of the high-temperature and high-oxidizability molten steel, the steel-tapping hole can be gradually eroded, the steel-tapping hole needs to be replaced again after being used for a period of time, and the service life of the steel-tapping hole is generally 200-500 furnaces at present. Other smelting furnaces also have the same problem.
Currently, most of the work in the steel making process is mechanized, but still some auxiliary work needs to consume a lot of manpower, such as gunning work when a steel tapping hole is replaced, and the image of the steel industry is seriously affected by the hard labor. With the increasing emphasis of people oriented in China, the jet repair of the replaced steel tapping hole is more humanized and standardized, and the urgent need is met.
When the smelting furnace steel tapping hole is replaced, a drilling machine is firstly needed to clean the rest steel tapping hole, then a new steel tapping hole is placed at the position of the original steel tapping hole, finally a gunning gun is used for spraying a refractory material into a gap between the steel tapping hole and a smelting furnace lining, and the steel tapping hole and the smelting furnace are tightly combined together after the refractory material is sintered by the heat of the smelting furnace.
When the steel outlet is gunned, two persons are required to operate simultaneously, namely, one person carries the gunning gun at the middle front section of the gunning gun to support the gunning gun, and one person holds the handle at the tail part of the gunning gun to control the gunning angle. Because the recoil of the gunning gun is large, an operator carrying the gunning gun needs to stabilize the gunning gun by a large amount of physical strength and also needs to endure long-time high-temperature roasting, and the labor intensity is very high. In addition, the refractory materials are in a divergent shape when sprayed out, and although most of gunning refractory materials flow into a gap between the steel tapping hole and a smelting furnace lining, a certain amount of refractory materials still flow into the inner wall of the steel tapping hole and block the steel tapping hole after sintering. Therefore, the inner wall of the steel tapping hole needs to be cleaned immediately after the gunning is finished, and the operation is very complicated in the actual production.
In addition, when the remaining tap hole is cleaned using a drill, the drill may enlarge the drill hole to be larger than the outer diameter of the tap hole, and the size of the hole diameter is determined by the diameter of the drill. Because the machine is operated manually, when drilling holes each time, the included angle between the axis of the drilled hole and the furnace shell has certain deviation, and the included angle between the steel tapping hole and the furnace shell needs to be kept constant and is generally perpendicular to the arc surface of the furnace shell to the best. In order to control the optimal angle of the tap hole, it is necessary to correct the drilled hole by placing a certain refractory material in advance and then to put the tap hole into the drilled hole. The process is generally completed by the experience of operators, and large errors exist due to personal differences. When the steel tapping hole is placed, the insertion depth is generally judged only by the length of the exposed furnace shell visually observed by an operator, and the steel tapping hole is often inserted too deeply or too shallowly to influence the production of the smelting furnace.
Therefore, the labor intensity is high when the tap hole is gunned when the tap hole is replaced in the smelting furnace at present, the gunned refractory material is easy to block the tap hole, and the insertion angle and depth error of the tap hole are large.
Disclosure of Invention
The invention mainly aims to provide a gunning steel-tapping hole auxiliary device and a gunning steel-tapping hole auxiliary method, and aims to solve the problems that the labor intensity is high when the steel-tapping hole is gunned when the steel-tapping hole is replaced, gunned refractory materials are easy to block the steel-tapping hole, and the insertion angle and depth error of the steel-tapping hole are large.
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
a gunning tap-hole assist device, comprising:
moving the trolley;
the gunning gun support frame is vertically arranged on one side of the top end of the mobile trolley, and the gunning gun support frame is arranged on the top end, the upper part of one side and the lower part of the other side of the vertical rod;
one end of the hydraulic telescopic rod is movably connected to the moving trolley;
tap-hole dead lever, one end swing joint is on the top of montant, the middle part swing joint of tap-hole dead lever has hydraulic telescoping rod's the other end, install the spacing fixed bayonet socket of tap-hole on the tap-hole dead lever, the notch bottom swing joint that tap-hole dead lever rear side was seted up has the push rod rack, top one side swing joint of push-and-pull rack has first gear, the second gear is installed to the front surface wall of first gear, the equal swing joint of first gear and second gear is on the tap-hole dead lever, one side swing joint of second gear has the spacing movable bayonet socket of tap-hole, the spacing movable bayonet socket of tap-hole runs through outside the tap-hole dead lever.
As a preferable aspect of the gunning tap-hole auxiliary device according to the present invention, wherein: and a counterweight rod is installed on one side of the top end of the movable trolley, and a plurality of counterweight discs are arranged on the counterweight rod.
As a preferable aspect of the gunning tap-hole auxiliary device according to the present invention, wherein: the hangers are installed on two sides of the movable trolley, and the hanging ring is installed on the rear side of the movable trolley.
As a preferred scheme of the gunning tapping hole auxiliary device, the gunning tapping hole auxiliary device comprises the following steps: the anti-skidding structure is characterized in that the head end of the push-pull rack is provided with an anti-skidding sleeve, and the surface of the anti-skidding sleeve is provided with anti-skidding lines.
As a preferable aspect of the gunning tap-hole auxiliary device according to the present invention, wherein: and a limiting block is arranged on the steel tapping hole limiting movable bayonet and is positioned inside the steel tapping hole fixing rod.
As a preferable aspect of the gunning tap-hole auxiliary device according to the present invention, wherein: and a bearing is arranged on a shaft connected with the first gear and the second gear, and the outer ring of the bearing is arranged in the steel tapping hole fixing rod.
As a preferable aspect of the gunning tap-hole auxiliary device according to the present invention, wherein: the cross section of the steel tapping hole fixing rod is square, the length of a diagonal line of the square is slightly smaller than the inner diameter of the steel tapping hole, the steel tapping hole fixing rod can rotate along the vertical rod, and the rotation range a angle is 45-135 degrees.
As a preferable aspect of the gunning tap-hole auxiliary device according to the present invention, wherein: the steel tapping hole limiting fixing bayonet is of a circular structure welded and wound around the steel tapping hole fixing rod, and the outer diameter of the steel tapping hole limiting fixing bayonet is equal to that of the steel tapping hole.
In order to solve the above technical problem, according to another aspect of the present invention, the present invention provides the following technical solutions:
the method for realizing the gunning of the steel-tapping hole by adopting the gunning steel-tapping hole auxiliary device comprises the following steps:
a. hoisting the auxiliary device to a tapping hole stacking position by using a crown block;
b. after the auxiliary device reaches the steel tapping hole stacking position, firstly, the hydraulic telescopic rod is extended out to enable the steel tapping hole fixing rod to be in a horizontal state, the steel tapping hole is sleeved on the steel tapping hole fixing rod, the push-pull rack is pushed, the steel tapping hole limiting movable bayonet is enabled to be in the maximum extending position, and the steel tapping hole is fixed on the steel tapping hole fixing rod; then, hoisting the auxiliary device to a smelting furnace platform by using a crown block;
c. starting the movable trolley to move the auxiliary device to the position in front of the smelting furnace for replacing the steel tapping hole, changing the hydraulic telescopic rod to a preset length, continuing to move the trolley forwards, stopping the movable trolley after the steel tapping hole enters the specified position of the smelting furnace, and marking the position of the trolley, the length of the telescopic rod and the angle of the smelting furnace;
d. selecting a gunning gun support frame suitable for refractory materials to flow into a gap between the steel tapping hole and the furnace lining, placing the front section of the gunning gun on the gunning gun support frame, and spraying the refractory materials into the gap between the steel tapping hole and the furnace lining; in the gunning process, different gunning gun brackets are used according to different positions of a gap between the steel tapping hole and the furnace lining;
e. and after gunning, pulling the push-pull rack to enable the steel tapping hole limiting movable bayonet to retract into the steel tapping hole fixing rod, drawing out the steel tapping hole fixing rod, and hoisting the auxiliary device to an appointed storage position by using a crown block.
The invention has the following beneficial effects:
(1) the spray repair gun is placed on the supporting points through the supporting points arranged on the device, so that high-temperature roasting endured during spray repair operation of spray repair operators is reduced, physical force consumed by the spray repair gun is supported, and the labor intensity of the spray repair operators is greatly reduced;
(2) the steel tapping hole fixing rod is arranged in the steel tapping hole during gunning operation, and the steel tapping hole is limited and fixed by the blocking of the bayonet, so that the problem of blockage caused by the fact that gunned refractory materials flow into the steel tapping hole is solved;
(3) the insertion depth and the angle of the steel tapping hole are fixed by marking the position of the trolley, the length of the telescopic rod and the angle of the smelting furnace, and the parameters can be finely adjusted according to the thickness change of the furnace lining in the using process, so that the problem of large insertion depth and angle errors caused by the fact that an operator places the steel tapping hole completely by experience is solved;
the smelting furnace gunning steel-tapping hole auxiliary device and method can reduce physical force consumed by supporting the gunning gun by an operator, reduce working strength, avoid refractory material from flowing into the steel-tapping hole, limit a rotation angle, increase accuracy in the using process and reduce errors.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of a vertical post of the present invention;
FIG. 3 is a rear view of the tap-hole fixing lever of the present invention;
FIG. 4 is a front view of the movable bayonet for limiting the tapping hole of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
110 | |
| 120 | |
130 | |
| 140 | |
200 | |
| 210 | |
300 | Hydraulic |
| 400 | Steel tapping |
410 | Steel tapping hole limiting |
| 420 | Push- |
421 | |
| 430 | |
440 | |
| 450 | Movable bayonet for limiting |
451 | |
| 460 | Bearing assembly |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a gunning steel-tapping hole auxiliary device and a gunning steel-tapping hole auxiliary method, which can reduce the physical force consumed by supporting a gunning gun by an operator, reduce the working strength, prevent a refractory material from flowing into a steel-tapping hole, limit the rotation angle, increase the accuracy in the using process and reduce the error;
referring to figures 1-4 of the drawings,
a mobile cart 100;
the vertical rod 200 is vertically connected to one side of the top end of the movable trolley 100 through a bolt, and gunning gun brackets 210 are welded to the top end, the upper part of one side and the lower part of the other side of the vertical rod 200;
one end of the hydraulic telescopic rod 300 is rotatably connected to the movable trolley 100;
one end of the steel-tapping hole fixing rod 400 is rotatably connected to the top end of the vertical rod 200, the middle of the steel-tapping hole fixing rod 400 is rotatably connected with the other end of the hydraulic telescopic rod 300, a steel-tapping hole limiting fixing bayonet 410 is welded on the steel-tapping hole fixing rod 400, the bottom end of a notch formed in the rear side of the steel-tapping hole fixing rod 400 is slidably connected with a push rod rack, one side of the top end of the push rod rack 420 is in meshing connection with a first gear 430, a second gear 440 is welded on the front wall of the first gear 430, the first gear 430 and the second gear 440 are both rotatably connected to the steel-tapping hole fixing rod 400, one side of the second gear 440 is in meshing connection with a steel-tapping hole limiting movable bayonet 450, and the steel-tapping hole limiting movable bayonet 450 penetrates through the outer portion of the steel-tapping hole fixing rod 400;
the movable trolley 100 is used for driving the steel-tapping hole fixing rod 400 to move, the vertical rod 200 is used for fixing the steel-tapping hole fixing rod 400, the gunning gun support 210 is used for supporting a gunning gun, the hydraulic telescopic rod 300 is used for driving the steel-tapping hole fixing rod 400 to rotate, the steel-tapping hole fixing rod 400 is used for being inserted into a steel-tapping hole, the steel-tapping hole limiting fixing bayonet 410 is used for plugging the steel-tapping hole, the push rod rack is used for driving the first gear 430 to rotate, the first gear 430 is used for driving the second gear 440 to rotate, the second gear 440 is used for driving the steel-tapping hole limiting movable bayonet 450 to move up and down, and the steel-tapping hole limiting movable bayonet 450 is used for fixing the steel-tapping hole fixing rod 400 on the steel-tapping hole;
when the device is used in a concrete way, a crown block is used for hanging the hanging lugs 130 at the two sides and the hanging ring 140 at the tail part, and the device is hoisted to the stacking position of the steel tapping hole.
b, after the device reaches the steel tapping hole stacking position, firstly, the hydraulic telescopic rod 300 is stretched out to enable the steel tapping hole fixing rod 400 to be in a horizontal state, the steel tapping hole is sleeved on the steel tapping hole fixing rod 400, the push-pull rack 420 is pushed, the steel tapping hole limiting movable bayonet 450 is enabled to be in the maximum stretching position, and the steel tapping hole is fixed on the steel tapping hole fixing rod 400. And then, the device is hoisted to a smelting furnace platform by using a crown block.
And c, opening the movable trolley 100 to move the device to the position in front of the smelting furnace for replacing the steel tapping hole, changing the hydraulic telescopic rod 300 to a preset length, continuously moving the trolley 100 forwards, stopping moving the movable trolley 100 after the steel tapping hole enters the specified position of the smelting furnace, and marking the position of the trolley, the length of the telescopic rod and the angle of the smelting furnace.
d, selecting a gunning gun support frame 210 suitable for enabling the refractory materials to flow into the gap between the steel tapping hole and the furnace lining, placing the front section of the gunning gun on the gunning gun support frame 210, and spraying the refractory materials into the gap between the steel tapping hole and the furnace lining. In the gunning process, different gunning gun brackets 210 are used according to different positions of a gap between a gunning steel-tapping hole and a furnace lining.
And e, pulling the push-pull rack 420 after gunning is finished, enabling the steel-tapping hole limiting movable bayonet 450 to retract into the steel-tapping hole fixing rod 400, drawing out the steel-tapping hole fixing rod 400, and hoisting the device to a specified storage position by using a crown block.
Referring to fig. 1 to 4 again, a weight rod 110 is welded to one side of the top end of the mobile cart 100, five weight plates 120 are arranged on the weight rod 110, the weight rod 110 is used for conveniently placing the weight plates 120, and the weight plates 120 are used for providing a weight function.
Referring to fig. 1 to 4 again, the hanging lugs 130 are welded to both sides of the moving trolley 100, the hanging rings 140 are welded to the rear side of the moving trolley 100, and the hanging lugs 130 and the hanging rings 140 are used for facilitating the movement of the crown block driving device.
Referring to fig. 1 to 4 again, the head end of the push-pull rack 420 is sleeved with an anti-slip sleeve 421, the surface of the anti-slip sleeve 421 is provided with anti-slip lines, and the anti-slip sleeve 421 is used for conveniently pulling the push-pull rack 420.
Referring to fig. 1-4 again, a limit block 451 is welded on the movable steel-tapping hole limit bayonet 450, the limit block 451 is located inside the fixed steel-tapping hole rod 400, and the limit block 451 is used for preventing the movable steel-tapping hole limit bayonet 450 from being separated from the fixed steel-tapping hole rod 400.
Referring again to fig. 1-4, a bearing 460 is sleeved on a shaft connecting the first gear 430 and the second gear 440, an outer ring of the bearing 460 is embedded in the tap-hole fixing rod 400, and the bearing 460 is used for enabling the first gear 430 and the second gear 440 to rotate in the tap-hole fixing rod 400.
Referring to fig. 1 to 4 again, the cross section of the steel-tapping hole fixing rod 400 is square, the length of the diagonal line of the square is slightly smaller than the inner diameter of the steel-tapping hole, the steel-tapping hole fixing rod 400 can rotate along the vertical rod 200, and the rotation range a is 45-135 degrees, so that the rotation angle of the steel-tapping hole fixing rod 400 is constant in the operation process, and the operation error is reduced.
Referring again to fig. 1 to 4, the tap-hole limiting fixing bayonet 410 is a circular structure welded and surrounded around the tap-hole fixing rod 400, and has an outer diameter equal to that of the tap-hole, so that the tap-hole limiting fixing bayonet 410 can block the tap-hole.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A gunning tap-hole auxiliary device is characterized by comprising:
a mobile cart (100);
the vertical rod (200) is vertically arranged on one side of the top end of the mobile trolley (100), and a gunning gun support frame (210) is arranged on the top end, the upper part of one side and the lower part of the other side of the vertical rod (200);
one end of the hydraulic telescopic rod (300) is movably connected to the movable trolley (100);
one end of the steel tapping hole fixing rod (400) is movably connected with the top end of the vertical rod (200), the middle part of the steel tapping hole fixing rod (400) is movably connected with the other end of the hydraulic telescopic rod (300), a tapping hole limiting fixing bayonet (410) is arranged on the tapping hole fixing rod (400), the bottom end of a notch formed at the rear side of the steel tapping hole fixing rod (400) is movably connected with a push rod rack, one side of the top end of the push-pull rack (420) is movably connected with a first gear (430), a second gear (440) is arranged on the front wall of the first gear (430), the first gear (430) and the second gear (440) are movably connected on the tap hole fixing rod (400), one side of the second gear (440) is movably connected with a tapping hole limiting movable bayonet (450), the steel tapping hole limiting movable bayonet (450) penetrates through the outer part of the steel tapping hole fixing rod (400).
2. The gunning tap-hole auxiliary device according to claim 1, wherein a weight lever (110) is installed at one side of the top end of the moving trolley (100), and a plurality of weight plates (120) are arranged on the weight lever (110).
3. The gunning tap-hole auxiliary device as claimed in claim 1, wherein both sides of said moving trolley (100) are provided with hanging lugs (130), and the rear side of said moving trolley (100) is provided with hanging rings (140).
4. The gunning tap hole auxiliary device according to claim 1, wherein the head end of the push-pull rack (420) is provided with an anti-slip sleeve (421), and the surface of the anti-slip sleeve (421) is provided with anti-slip lines.
5. The gunning tap-hole auxiliary device as recited in claim 1, wherein a stopper (451) is mounted on the tap-hole stopper movable bayonet (450), and the stopper (451) is located inside the tap-hole fixing lever (400).
6. The gunning tap-hole assistant device according to claim 1, wherein a bearing (460) is installed on a shaft connecting the first gear (430) and the second gear (440), and an outer ring of the bearing (460) is installed in the tap-hole fixing rod (400).
7. The gunning tap-hole auxiliary device as recited in claim 1, wherein the tap-hole fixing rod (400) has a square cross-section, and the length of the diagonal line of the square is slightly smaller than the inner diameter of the tap-hole, and the tap-hole fixing rod (400) is rotatable along the vertical rod (200) with a rotation range a angle of between 45 ° and 135 °.
8. The gunning discharge hole auxiliary device as recited in claim 1, wherein the discharge hole stopper fixing bayonet (410) is a circular structure welded and wound around the discharge hole fixing lever (400), and has an outer diameter equal to an outer diameter of the discharge hole.
9. Method for realising a gunning of a tap-hole by means of the gunning of a tap-hole auxiliary device as claimed in any one of claims 1 to 8, characterised in that it comprises the following steps:
a. hoisting the auxiliary device to a tapping hole stacking position by using a crown block;
b. after the auxiliary device reaches the steel tapping hole stacking position, firstly, the hydraulic telescopic rod (300) is extended out to enable the steel tapping hole fixing rod (400) to be in a horizontal state, the steel tapping hole is sleeved on the steel tapping hole fixing rod (400), the push-pull rack (420) is pushed, the steel tapping hole limiting movable bayonet (450) is enabled to be in the maximum extending position, and the steel tapping hole is fixed on the steel tapping hole fixing rod (400); then, using a crown block to hoist the auxiliary device to a smelting furnace platform;
c. starting the movable trolley (100), moving the auxiliary device to the position in front of the furnace for replacing the steel tapping hole, changing the hydraulic telescopic rod (300) to a preset length, continuously moving the trolley (100) forwards, stopping moving the trolley (100) after the steel tapping hole enters an appointed position, and marking the position of the trolley, the length of the telescopic rod and the angle of the smelting furnace;
d. selecting a gunning gun support frame (210) suitable for the refractory material to flow into a gap between the steel tapping hole and the furnace lining, placing the front section of a gunning gun on the gunning gun support frame (210), and spraying the refractory material into the gap between the steel tapping hole and the furnace lining; in the gunning process, different gunning gun brackets (210) are used according to different positions of a gap between the steel tapping hole and the furnace lining;
e. and after gunning, pulling the push-pull rack (420), enabling the steel tapping hole limiting movable bayonet (450) to retract into the steel tapping hole fixing rod (400), drawing out the steel tapping hole fixing rod (400), and hoisting the auxiliary device to a specified storage position by using a crown block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210347881.9A CN114836590B (en) | 2022-04-01 | 2022-04-01 | Auxiliary device and method for gunning tapping hole of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210347881.9A CN114836590B (en) | 2022-04-01 | 2022-04-01 | Auxiliary device and method for gunning tapping hole of converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114836590A true CN114836590A (en) | 2022-08-02 |
| CN114836590B CN114836590B (en) | 2023-07-25 |
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| CN202210347881.9A Active CN114836590B (en) | 2022-04-01 | 2022-04-01 | Auxiliary device and method for gunning tapping hole of converter |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647348U (en) * | 1991-09-18 | 1994-06-28 | 日本鋼管株式会社 | Converter tap hole sleeve changer |
| KR200222976Y1 (en) * | 2000-11-06 | 2001-05-15 | 주식회사천양 | Taphole exchanging machine |
| KR20020044253A (en) * | 2000-12-05 | 2002-06-15 | 이구택 | Apparatus for changing multi-rods of tapping machine |
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| CN201770723U (en) * | 2010-07-29 | 2011-03-23 | 唐山建龙实业有限公司 | Special tool for replacing tap holes |
| CN102899445A (en) * | 2012-10-26 | 2013-01-30 | 攀钢集团西昌钢钒有限公司 | Tap hole replacing device |
| JP2014070266A (en) * | 2012-10-01 | 2014-04-21 | Jfe Steel Corp | Maintenance method of converter spout |
| CN204504212U (en) * | 2015-03-30 | 2015-07-29 | 河北钢铁股份有限公司承德分公司 | A kind of tapping hole sled mechanism fast online replacement device |
| US20160313063A1 (en) * | 2013-12-09 | 2016-10-27 | Tmt - Tapping Measuring Technology Sàrl | Tap-hole refurbishing |
| CN206173380U (en) * | 2016-11-28 | 2017-05-17 | 邢台钢铁有限责任公司 | Can conveniently implement dolly of converter sleeve pipe operation |
| CN207891369U (en) * | 2018-03-09 | 2018-09-21 | 贵州大学 | A kind of converter spray repair operation auxiliary grip device |
| CN209555285U (en) * | 2018-12-13 | 2019-10-29 | 河钢股份有限公司承德分公司 | Converter tap hole tube limiting device |
| CN211999801U (en) * | 2020-02-25 | 2020-11-24 | 邢台钢铁有限责任公司 | Converter gunning gun support |
| CN212309210U (en) * | 2020-04-21 | 2021-01-08 | 义马宝宜新材料有限公司 | A dust collector for iron notch gunning refractory is reinforced usefulness |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647348U (en) * | 1991-09-18 | 1994-06-28 | 日本鋼管株式会社 | Converter tap hole sleeve changer |
| KR200222976Y1 (en) * | 2000-11-06 | 2001-05-15 | 주식회사천양 | Taphole exchanging machine |
| KR20020044253A (en) * | 2000-12-05 | 2002-06-15 | 이구택 | Apparatus for changing multi-rods of tapping machine |
| KR200371425Y1 (en) * | 2004-09-14 | 2005-01-03 | 주식회사 우진 | Opening device for tap hole of the electric furnace |
| CN201770723U (en) * | 2010-07-29 | 2011-03-23 | 唐山建龙实业有限公司 | Special tool for replacing tap holes |
| JP2014070266A (en) * | 2012-10-01 | 2014-04-21 | Jfe Steel Corp | Maintenance method of converter spout |
| CN102899445A (en) * | 2012-10-26 | 2013-01-30 | 攀钢集团西昌钢钒有限公司 | Tap hole replacing device |
| US20160313063A1 (en) * | 2013-12-09 | 2016-10-27 | Tmt - Tapping Measuring Technology Sàrl | Tap-hole refurbishing |
| CN204504212U (en) * | 2015-03-30 | 2015-07-29 | 河北钢铁股份有限公司承德分公司 | A kind of tapping hole sled mechanism fast online replacement device |
| CN206173380U (en) * | 2016-11-28 | 2017-05-17 | 邢台钢铁有限责任公司 | Can conveniently implement dolly of converter sleeve pipe operation |
| CN207891369U (en) * | 2018-03-09 | 2018-09-21 | 贵州大学 | A kind of converter spray repair operation auxiliary grip device |
| CN209555285U (en) * | 2018-12-13 | 2019-10-29 | 河钢股份有限公司承德分公司 | Converter tap hole tube limiting device |
| CN211999801U (en) * | 2020-02-25 | 2020-11-24 | 邢台钢铁有限责任公司 | Converter gunning gun support |
| CN212309210U (en) * | 2020-04-21 | 2021-01-08 | 义马宝宜新材料有限公司 | A dust collector for iron notch gunning refractory is reinforced usefulness |
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|---|---|
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