CN114836590B - Auxiliary device and method for gunning tapping hole of converter - Google Patents
Auxiliary device and method for gunning tapping hole of converter Download PDFInfo
- Publication number
- CN114836590B CN114836590B CN202210347881.9A CN202210347881A CN114836590B CN 114836590 B CN114836590 B CN 114836590B CN 202210347881 A CN202210347881 A CN 202210347881A CN 114836590 B CN114836590 B CN 114836590B
- Authority
- CN
- China
- Prior art keywords
- tapping hole
- steel
- gunning
- fixing rod
- auxiliary device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention belongs to the technical field of steelmaking, and particularly relates to a gunning tap hole auxiliary device and a gunning tap hole auxiliary method, wherein the gunning tap hole auxiliary device comprises the following steps: a moving trolley; the vertical rod is vertically arranged at one side of the top end of the mobile trolley, and gunning gun supporting frames are arranged at the top end of the vertical rod, the upper part of one side and the lower part of the other side; one end of the hydraulic telescopic rod is movably connected to the movable trolley; the steel tapping hole fixing rod is movably connected with one end of the vertical rod, the middle part of the steel tapping hole fixing rod is movably connected with the other end of the hydraulic telescopic rod, a steel tapping hole limiting fixing bayonet is arranged on the steel tapping hole fixing rod, and a push rod rack is movably connected with the bottom end of a notch formed in the rear side of the steel tapping hole fixing rod. According to the gunning tap hole auxiliary device and the gunning tap hole auxiliary method, the physical strength consumed by an operator for supporting the gunning gun can be reduced, the working strength is reduced, refractory materials are prevented from flowing into the tap hole, meanwhile, the rotation angle is limited, the accuracy in the using process is improved, and the error is reduced.
Description
Technical Field
The invention relates to the technical field of converter steelmaking, in particular to a converter gunning tapping hole auxiliary device and a method.
Background
The converter is the main equipment for domestic steelmaking production, after the converter steelmaking is finished, molten steel in the converter needs to be injected into a ladle, and at the moment, the molten steel needs to flow into the ladle through a tap hole. The steel tapping hole is gradually eroded due to the flushing of high-temperature high-oxidability molten steel, and needs to be replaced after being used for a period of time, and the service life of the steel tapping hole is generally between 200 and 500 furnaces at present.
At present, although most of the work in the steelmaking process is mechanized, a lot of labor is required for auxiliary work, such as gunning work when replacing a tap hole, and the like, and the image of the steel industry is seriously affected by the difficult labor. With the increasing importance of people in China, the replacement of the steel tapping hole is more humanized and standardized, and the steel tapping hole is an urgent need.
When the steel-tapping hole of the converter is replaced, the rest of the steel-tapping hole is firstly cleaned by using a drilling machine, then a new steel-tapping hole is placed at the original steel-tapping hole position, finally a gunning gun is used for spraying refractory materials into a gap between the steel-tapping hole and a converter lining, and after the refractory materials are sintered by the heat of the converter, the steel-tapping hole and the converter are tightly combined together.
When the steel hole is gunning, two persons are required to work simultaneously, namely, one person carries the gunning gun to support the front section in the gunning gun, and the other 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, operators carrying the gunning gun not only need a great deal of physical force to stabilize the gunning gun, but also need to endure long-time high-temperature roasting, and the labor intensity is extremely high. In addition, the refractory material is in a divergent shape when sprayed out, most of the gunning material flows into a gap between the steel-tapping hole and the converter lining, but a certain amount of the refractory material still flows into the inner wall of the steel-tapping hole, and the steel-tapping hole is blocked by sintering. Therefore, the inner wall of the steel tapping hole needs to be cleaned immediately after the gunning is finished, and the operation is extremely complicated in practical production.
In addition, when the remaining tap hole is cleaned by using the drill, the drill enlarges 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 bit. Because the machine is manually operated, when drilling is carried out each time, a certain deviation exists between the axis of the drilling and the included angle of the furnace shell, and the included angle between the steel tapping hole and the furnace shell needs to be kept constant and is generally perpendicular to the cambered surface of the furnace shell optimally. In order to control the optimum angle of the tap hole, a certain refractory material correction borehole is placed in advance, and then the tap hole is placed in the borehole. This process is typically done entirely on the basis of the operator experience, with significant errors due to personal differences. When the tapping hole is placed, the insertion depth is generally judged only by visual observation of the length of the exposed furnace shell by an operator, and the tapping hole is often inserted too deeply or too shallowly to affect the production of the converter.
Therefore, the prior art has the problems that the labor intensity is high when the steel-tapping hole is gunned when the steel-tapping hole is replaced by the converter, the gunned refractory material is easy to block the steel-tapping hole, and the insertion angle and the depth error of the steel-tapping hole are large.
Disclosure of Invention
The invention mainly aims to provide an auxiliary device and method for a gunning-up steel outlet of a converter, and aims to solve the problems that the labor intensity is high when the gunning-up steel outlet is arranged when the steel outlet is replaced by the converter, the gunning-up refractory material is easy to block the steel outlet, and the insertion angle and depth errors of the steel outlet are large.
In order to solve the technical problems, according to one aspect of the present invention, the following technical solutions are provided:
a converter gunning tap hole assist apparatus, comprising:
a moving trolley;
the vertical rod is vertically arranged at one side of the top end of the mobile trolley, and gunning gun supporting frames are arranged at the top end of the vertical rod, the upper part of one side and the lower part of the other side;
one end of the hydraulic telescopic rod is movably connected to the movable trolley;
the steel tapping hole fixing rod is movably connected to the top end of the vertical rod at one end, the other end of the hydraulic telescopic rod is movably connected to the middle of the steel tapping hole fixing rod, a steel tapping hole limiting fixing bayonet is mounted on the steel tapping hole fixing rod, a push-pull rack is movably connected to the bottom end of a notch formed in the rear side of the steel tapping hole fixing rod, a first gear is movably connected to one side of the top end of the push-pull rack, a second gear is mounted on the front wall of the first gear, the first gear and the second gear are movably connected to the steel tapping hole fixing rod, a steel tapping hole limiting movable bayonet is movably connected to one side of the second gear, and the steel tapping hole limiting movable bayonet penetrates through the steel tapping hole fixing rod.
As a preferable embodiment of the auxiliary device for the gunning tap hole of the converter according to the invention, the auxiliary device comprises: a counterweight rod is arranged on one side of the top end of the movable trolley, and a plurality of counterweight plates are arranged on the counterweight rod.
As a preferable embodiment of the auxiliary device for the gunning tap hole of the converter according to the invention, the auxiliary device comprises: the hangers are arranged on two sides of the movable trolley, and the hangers are arranged on the rear side of the movable trolley.
As a preferable embodiment of the auxiliary device for the gunning tap hole of the converter according to the invention, the auxiliary device comprises: the anti-skid sleeve is arranged at the head end of the push-pull rack, and anti-skid lines are formed in the surface of the anti-skid sleeve.
As a preferable embodiment of the auxiliary device for the gunning tap hole of the converter according to the invention, the auxiliary device comprises: the steel tapping hole limiting movable bayonet is provided with a limiting block, and the limiting block is positioned in the steel tapping hole fixing rod.
As a preferable embodiment of the auxiliary device for the gunning tap hole of the converter according to the invention, the auxiliary device comprises: and a bearing is arranged on a shaft connected with the first gear and the second gear, and an outer ring of the bearing is arranged in the steel tapping hole fixing rod.
As a preferable embodiment of the auxiliary device for the gunning tap hole of the converter according to the invention, the auxiliary device comprises: the section of the steel-tapping hole fixing rod 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 can rotate along the vertical rod, and the rotation amplitude a is 45-135 degrees.
As a preferable embodiment of the auxiliary device for the gunning tap hole of the converter according to the invention, the auxiliary device comprises: the steel tapping hole limiting fixing bayonet is of a circular structure which is welded and surrounds the periphery of the steel tapping hole fixing rod, and the outer diameter of the steel tapping hole limiting fixing bayonet is equal to the outer diameter of the steel tapping hole.
In order to solve the above technical problems, according to another aspect of the present invention, the following technical solutions are provided:
the method for realizing the gunning and tapping hole of the converter by adopting the gunning and tapping hole auxiliary device of the converter comprises the following steps:
a. lifting the auxiliary device to a stacking position of the tapping hole by using a crown block;
b. after the auxiliary device reaches the stacking position of the steel-tapping hole, firstly, the hydraulic telescopic rod is extended 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 to enable the limit movable bayonet of the steel-tapping hole to be in the maximum extending position, and the steel-tapping hole is fixed on the steel-tapping hole fixing rod; then, lifting the auxiliary device to a converter platform by using a crown block;
c. starting a moving trolley to move the auxiliary device to the position of the converter in front of the converter for replacing the tapping hole, changing the hydraulic telescopic rod to a preset length, continuing to move the trolley forwards, stopping moving the trolley after the tapping hole enters the designated position of the converter, and marking the position of the trolley, the length of the telescopic rod and the angle of the converter;
d. selecting a gunning gun support frame suitable for the gap between the refractory material inflow 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 material into the gap between the steel-tapping hole and the furnace lining; in the gunning process, different gunning gun support frames are used according to different position changes of gaps between the steel tapping hole and the furnace lining;
e. and after the gunning is finished, the push-pull rack is pulled, so that the limiting movable bayonet of the steel tapping hole is retracted into the steel tapping hole fixing rod, the steel tapping hole fixing rod is pulled out, and the auxiliary device is lifted to a specified storage position by using the crown block.
The beneficial effects of the invention are as follows:
(1) The gunning gun is placed on the supporting point through the supporting point arranged on the device, so that the high-temperature roasting born by a gunning operator in gunning operation is reduced, the physical strength consumed by the gunning gun is supported, and the labor intensity of the gunning operator is greatly reduced;
(2) The steel-tapping hole fixing rod is arranged in the steel-tapping hole during gunning operation, and meanwhile, the steel-tapping hole is limited and blocked by the fixing bayonet, so that the blocking problem caused by the flow of gunning refractory materials into the steel-tapping hole is avoided;
(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 converter, and the parameters can be finely adjusted according to the change of the thickness of the furnace lining in the use process, so that the problem of large insertion depth and angle error caused by the fact that an operator places the steel tapping hole completely by experience is avoided;
the auxiliary device and the method for the gunning tap hole of the converter can reduce the physical strength consumed by an operator for supporting the gunning gun, reduce the working strength, prevent refractory materials from flowing into the tap hole, limit the rotation angle, increase the accuracy in the using process and reduce the error.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a rear view of the tap hole fixing lever according to the present invention;
fig. 4 is a front view of the tap hole limiting movable bayonet of the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides an auxiliary device and a method for a gunning tap hole of a converter, which can reduce the physical strength consumed by an operator for supporting a gunning gun, reduce the working strength, prevent refractory materials from flowing into the tap 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 mobile trolley 100 through bolts, and gunning gun supporting frames 210 are welded on the top end, the upper part of one side and the lower part of the other side of the vertical rod 200;
a hydraulic telescopic rod 300, one end of which is rotatably connected to the traveling carriage 100;
one end of a steel-tapping hole fixing rod 400 is rotatably connected to the top end of the vertical rod 200, the middle part 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, a push-pull rack 420 is slidably connected to the bottom end of a notch formed in the rear side of the steel-tapping hole fixing rod 400, a first gear 430 is meshed and connected to one side of the top end of the push-pull rack 420, 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, a steel-tapping hole limiting movable bayonet 450 is meshed and connected to one side of the second gear 440, and the steel-tapping hole limiting movable bayonet 450 penetrates to the outside of the steel-tapping hole fixing rod 400;
the moving 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 frame 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-pull rack 420 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, a is needed, the crown block is firstly used for hanging the hanging lugs 130 on two sides and the hanging rings 140 on the tail, and the device is lifted to a stacking position of the steel tapping hole.
b, after the device reaches the stacking position of the steel-tapping hole, the hydraulic telescopic rod 300 is firstly extended 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. And then, hoisting the device to a converter platform by using a crown block.
c, starting the mobile trolley 100 to move the device to the position of the converter in front of the converter for replacing the tapping hole, changing the hydraulic telescopic rod 300 to a preset length, continuing to move the trolley 100 forwards, stopping moving the trolley 100 after the tapping hole enters the designated position of the converter, and marking the position, the telescopic rod length and the converter angle of the trolley.
d, selecting a gunning gun support frame 210 suitable for the gap between the refractory material inflow 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 material into the gap between the steel-tapping hole and the furnace lining. Different gunning gun support frames 210 are used in the gunning process according to different position changes of the gap between the gunning tap hole and the furnace lining.
And e, after gunning, pulling the push-pull rack 420 to enable the steel-tapping hole limiting movable bayonet 450 to retract into the steel-tapping hole fixing rod 400, withdrawing the steel-tapping hole fixing rod 400, and hoisting the device to a specified storage position by using a crown block.
Referring to fig. 1-4 again, a weight bar 110 is welded on one side of the top end of the travelling car 100, five weight plates 120 are disposed on the weight bar 110, the weight bar 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. 1-4 again, the two sides of the mobile cart 100 are welded with the hanging lugs 130, the rear side of the mobile cart 100 is welded with the hanging rings 140, 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. 1-4 again, the head end of the push-pull rack 420 is sleeved with an anti-slip sleeve 421, anti-slip lines are provided on the surface of the anti-slip sleeve 421, and the anti-slip sleeve 421 is used for conveniently pulling the push-pull rack 420.
Referring to fig. 1-4 again, a limiting block 451 is welded on the tap hole limiting movable bayonet 450, the limiting block 451 is located inside the tap hole fixing rod 400, and the limiting block 451 is used for preventing the tap hole limiting movable bayonet 450 from being separated from the tap hole fixing rod 400.
Referring to fig. 1-4 again, a bearing 460 is sleeved on the shaft connecting the first gear 430 and the second gear 440, an outer ring of the bearing 460 is connected 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. 1-4 again, the section of the fixing rod 400 is square, the diagonal length of the square is slightly smaller than the inner diameter of the tap hole, the fixing rod 400 can rotate along the vertical rod 200, and the rotation range a is between 45 ° and 135 °, so that the rotation angle of the fixing rod 400 is constant during operation, and the operation error is reduced.
Referring to fig. 1-4 again, the steel-tapping hole limiting and fixing bayonet 410 is a circular structure welded around the steel-tapping hole fixing rod 400, and has an outer diameter equal to the outer diameter of the steel-tapping hole, so that the steel-tapping hole limiting and fixing bayonet 410 can block the steel-tapping hole.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (5)
1. A gunning tap hole assist device characterized by comprising:
a mobile cart (100);
the vertical rod (200) is vertically arranged at one side of the top end of the mobile trolley (100), and gunning gun supporting frames (210) are respectively arranged at 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 mobile trolley (100);
the steel tapping hole fixing rod (400) is movably connected to 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 steel tapping hole limiting fixing bayonet (410) is arranged on the steel tapping hole fixing rod (400), a push-pull rack (420) is movably connected to the bottom end of a notch formed in the rear side of the steel tapping hole fixing rod (400), a first gear (430) is movably connected to one side of the top end of the push-pull rack (420), 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 to the steel tapping hole fixing rod (400), a steel tapping hole limiting movable bayonet (450) is movably connected to one side of the second gear (440), and the steel tapping hole limiting movable bayonet (450) penetrates the outside the steel tapping hole fixing rod (400). A limiting block (451) is arranged on the steel-tapping hole limiting movable bayonet (450), and the limiting block (451) is positioned in the steel-tapping hole fixing rod (400); a bearing (460) is arranged on a shaft connected with the first gear (430) and the second gear (440), and the outer ring of the bearing (460) is arranged in the steel tapping hole fixing rod (400); the section of the steel tapping hole fixing rod (400) is square, the diagonal length 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 amplitude a is 45-135 degrees; the steel-tapping hole limiting fixing bayonet (410) is of a circular structure which is welded and surrounds the periphery of the steel-tapping hole fixing rod (400), and the outer diameter of the steel-tapping hole limiting fixing bayonet is equal to the outer diameter of the steel-tapping hole;
the method for realizing the gunning tapping hole by adopting the gunning tapping hole auxiliary device comprises the following steps of:
a. lifting the auxiliary device to a stacking position of the tapping hole by using a crown block;
b. after the auxiliary device reaches the stacking position of the steel-tapping hole, firstly, the hydraulic telescopic rod (300) is extended 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 to enable the steel-tapping hole limiting movable bayonet (450) to be in a maximum extending position, and the steel-tapping hole is fixed on the steel-tapping hole fixing rod (400); then, lifting the auxiliary device to a smelting furnace platform by using a crown block;
c. starting a moving trolley (100) to move the auxiliary device to a position in front of the furnace for replacing the tapping hole, changing a hydraulic telescopic rod (300) to a preset length, continuing to move the trolley (100) forwards, stopping moving the trolley (100) after the tapping hole enters a designated 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 gap between the refractory material inflow 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 material into the gap between the steel-tapping hole and the furnace lining; different gunning gun support frames (210) are used according to different position changes of gaps between the steel tapping hole and the furnace lining in the gunning process;
e. and after the gunning is finished, the push-pull rack (420) is pulled, so that the steel-tapping hole limiting movable bayonet (450) is retracted into the steel-tapping hole fixing rod (400), the steel-tapping hole fixing rod (400) is pulled out, and the auxiliary device is lifted to a specified storage position by using the crown block.
2. The gunning tap hole assist device according to claim 1, wherein a weight bar (110) is mounted on a top end side of the traveling carriage (100), and a plurality of weight plates (120) are provided on the weight bar (110).
3. The gunning tap hole assist device according to claim 1 wherein the hangers (130) are mounted on both sides of the travelling car (100), and the hangers (140) are mounted on the rear side of the travelling car (100).
4. The gunning tap hole auxiliary device according to claim 1, wherein an anti-skid sleeve (421) is arranged at the head end of the push-pull rack (420), and anti-skid lines are formed on the surface of the anti-skid sleeve (421).
5. A method for realizing a gunning tap hole by using the gunning tap hole assisting device according to any one of claims 1 to 4, comprising the steps of:
a. lifting the auxiliary device to a stacking position of the tapping hole by using a crown block;
b. after the auxiliary device reaches the stacking position of the steel-tapping hole, firstly, the hydraulic telescopic rod (300) is extended 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 to enable the steel-tapping hole limiting movable bayonet (450) to be in a maximum extending position, and the steel-tapping hole is fixed on the steel-tapping hole fixing rod (400); then, lifting the auxiliary device to a smelting furnace platform by using a crown block;
c. starting a moving trolley (100) to move the auxiliary device to a position in front of the furnace for replacing the tapping hole, changing a hydraulic telescopic rod (300) to a preset length, continuing to move the trolley (100) forwards, stopping moving the trolley (100) after the tapping hole enters a designated 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 gap between the refractory material inflow 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 material into the gap between the steel-tapping hole and the furnace lining; different gunning gun support frames (210) are used according to different position changes of gaps between the steel tapping hole and the furnace lining in the gunning process;
e. and after the gunning is finished, the push-pull rack (420) is pulled, so that the steel-tapping hole limiting movable bayonet (450) is retracted into the steel-tapping hole fixing rod (400), the steel-tapping hole fixing rod (400) is pulled out, and the auxiliary device is lifted to a specified storage position by using the 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 CN114836590A (en) | 2022-08-02 |
| CN114836590B true CN114836590B (en) | 2023-07-25 |
Family
ID=82563845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210347881.9A Active CN114836590B (en) | 2022-04-01 | 2022-04-01 | Auxiliary device and method for gunning tapping hole of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114836590B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200222976Y1 (en) * | 2000-11-06 | 2001-05-15 | 주식회사천양 | Taphole exchanging machine |
| KR200371425Y1 (en) * | 2004-09-14 | 2005-01-03 | 주식회사 우진 | Opening device for tap hole of the electric furnace |
| 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 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2534296Y2 (en) * | 1991-09-18 | 1997-04-30 | 日本鋼管株式会社 | Converter tapping sleeve exchange machine |
| KR100431867B1 (en) * | 2000-12-05 | 2004-05-20 | 주식회사 포스코 | Apparatus for changing multi-rods of tapping machine |
| CN201770723U (en) * | 2010-07-29 | 2011-03-23 | 唐山建龙实业有限公司 | Special tool for replacing tap holes |
| JP6089546B2 (en) * | 2012-10-01 | 2017-03-08 | Ｊｆｅスチール株式会社 | Repair method for converter steel outlet |
| CN102899445B (en) * | 2012-10-26 | 2014-03-19 | 攀钢集团西昌钢钒有限公司 | Tap hole replacing device |
| LU92330B1 (en) * | 2013-12-09 | 2015-06-10 | Tmt Tapping Measuring Technology Sarl | 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 |
| 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 |
-
2022
- 2022-04-01 CN CN202210347881.9A patent/CN114836590B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200222976Y1 (en) * | 2000-11-06 | 2001-05-15 | 주식회사천양 | Taphole exchanging machine |
| KR200371425Y1 (en) * | 2004-09-14 | 2005-01-03 | 주식회사 우진 | Opening device for tap hole of the electric furnace |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114836590A (en) | 2022-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110411785B (en) | Molten steel sampling instrument and application method thereof | |
| TWI373529B (en) | Smelting apparatus | |
| FI80956C (en) | MANIPULATOR VID UGNAR OCH LIKNANDE. | |
| CN114836590B (en) | Auxiliary device and method for gunning tapping hole of converter | |
| JP3684201B2 (en) | Method of dismantling the bottom of the blast furnace furnace | |
| JP5552837B2 (en) | Repair method of converter steel hole | |
| CN215439492U (en) | Steel ladle and iron ladle lining masonry lifting platform | |
| CN108034789B (en) | Filling and plugging equipment for steel tapping hole of trough type electric arc furnace | |
| CN206768169U (en) | Eccentric single-mouth refining furnace | |
| CN213350794U (en) | Foundry ladle | |
| CN211999801U (en) | Converter gunning gun support | |
| CN211945981U (en) | Lifting equipment of furnace dismantling machine | |
| CN210400004U (en) | Tile-drawing jetting immersion type top-blowing spray gun | |
| CN206296447U (en) | A kind of molten copper suspension bucket for handicraft cast | |
| CN211284422U (en) | Vehicle type operation platform for replacing and maintaining converter steel tapping hole | |
| JPH06145752A (en) | Method for constructing brick of molten steel tapping hole of converter and constructing device using the same | |
| KR20210090952A (en) | safe working device for blast furnace using strand jack and repair method of blast furnace | |
| CN214023378U (en) | Continuous casting slab cutting sediment lifts by crane collection device | |
| CN110479999B (en) | Method for replacing lifting oil cylinder of ladle turret | |
| CN217701337U (en) | Air brick core pulling-out device | |
| CN217867641U (en) | Furnace cover hoisting machine of vacuum degassing furnace | |
| CN220166223U (en) | Oxygen rifle transfer trolley | |
| CN217578965U (en) | Quick replacing device for steel tapping hole of converter | |
| CN217315861U (en) | Sleeving mechanism for submersed nozzle and ladle sliding nozzle | |
| CN214952426U (en) | Alloy grain sampling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |