CN110878382B - Automatic tuyere poking device and method for blast furnace - Google Patents
Automatic tuyere poking device and method for blast furnace Download PDFInfo
- Publication number
- CN110878382B CN110878382B CN201911191037.6A CN201911191037A CN110878382B CN 110878382 B CN110878382 B CN 110878382B CN 201911191037 A CN201911191037 A CN 201911191037A CN 110878382 B CN110878382 B CN 110878382B
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- China
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- heavy hammer
- guide rail
- tuyere
- chain
- blast furnace
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 240000007643 Phytolacca americana Species 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 206010017740 Gas poisoning Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
Abstract
The invention relates to an automatic tuyere poking device and method for a blast furnace, and belongs to the technical field of blast furnace production operation in the metallurgical industry. The technical proposal is as follows: the steel drill (1) is of a hollow structure, the front end of the steel drill (1) is conical, a hose connector (13) is arranged at the rear end of the steel drill (1), a cooling hose (12) is connected with the hose connector (13), and the rear end of the steel drill (1) is fixed on the heavy hammer (2); the heavy hammer (2) is connected to the heavy hammer guide rail (3) in a sliding way, the heavy hammer guide rail (3) is fixed on the guide rail bracket (4), and the guide rail bracket (4) is fixed on the movable trolley (5); the two ends of the heavy hammer guide rail (3) are respectively provided with a chain front steering gear (10) and a chain rear steering gear (11), the pneumatic motor (8) is fixed in the middle of the heavy hammer guide rail (3), and the driving gear, the chain front steering gear (10) and the chain rear steering gear (11) are in transmission connection through the chain (9). The beneficial effects of the invention are as follows: can realize automatic tuyere poking operation.
Description
Technical Field
The invention relates to an automatic tuyere poking device and method for a blast furnace, and belongs to the technical field of blast furnace production operation in the metallurgical industry.
Background
After overhauling a large-sized blast furnace for reasons, because the diameter of a hearth is larger during air supply, the center is not easy to blow through in the early stage of air supply, and the furnace condition is not easy to recover.
The traditional operation of poking the air port is to poke the air port by using a sliding hammer, wherein the sliding hammer is a steel bar with a heavy hammer at the rear end, the heavy hammer is sleeved on the steel bar, a rope on the heavy hammer is pulled to enable the heavy hammer to slide back and forth on the steel bar, a baffle is welded at the front and the back of the heavy hammer, and the steel bar is enabled to advance to strike the front baffle by using the sliding hammer to block mud at the air port so as to poke the air port. When the device is operated, two tubing workers open the air port plugboard, then at least six stokers lift the sliding hammer to plug the air port plugboard into the air port, the two workers support the sliding hammer at the rear end to prevent the sliding hammer from being blown out by high-pressure air, the two workers rapidly pull the sliding hammer forwards to strike the front end baffle, and the other two workers pull the heavy hammer backwards, so that the air port is struck back and forth to block mud until the air port is opened. When the tuyere is poked, high-pressure hot air in the furnace carries coal gas to be sprayed out from the plugboard opening of the tuyere, so that accidents such as burn, coal gas poisoning and the like are easy to occur; meanwhile, the sound is harsher, workers can work only by wearing special earplugs, communication among workers is difficult, matching is poor, and efficiency is extremely low; in addition, high-pressure hot air can blow out a large amount of air port blocking mud, and the air port blocking mud is beaten on the body and the face of a worker, so that the worker is easy to be injured; therefore, when the tuyere is poked, the pressure in the heart of a worker is high, the tuyere is very tight during operation, when the tuyere is not matched well, the tuyere needs to be poked out for many times, the accident that steel drills are changed into red when heated and deformed and are difficult to pull out the tuyere can often occur, even serious accidents such as personnel injury and medium gas can also occur, in addition, under the condition of high tension, four workers responsible for pulling the sliding hammer need to rapidly pull the heavy hammer back and forth, the labor intensity is very high, and when the tuyere is blocked, a blast furnace has to be specially arranged for poking the tuyere during overtime.
Disclosure of Invention
The invention aims to provide an automatic tuyere poking device and method for a blast furnace, which can realize automatic tuyere poking operation and solve the problems in the background technology.
The technical scheme of the invention is as follows:
the utility model provides an automatic wind gap device of poking through of blast furnace, includes drill steel, weight guide rail, guide rail support, travelling car, air motor, chain, the front steering gear of chain, the rear steering gear of chain, drill steel cooling hose and hose connection, the front end of drill steel is the toper, and the rear end of drill steel is equipped with the hose connection head, and the cooling hose is connected with the hose connection head, and the rear end of drill steel is fixed on the weight; the heavy hammer is connected to the heavy hammer guide rail in a sliding manner, the heavy hammer guide rail is horizontally fixed on the guide rail bracket, and the guide rail bracket is fixed on the movable trolley; the two ends of the heavy hammer guide rail are respectively provided with a front chain steering gear and a rear chain steering gear, the pneumatic motor is fixed in the middle of the heavy hammer guide rail, the output shaft of the pneumatic motor is provided with a driving gear, and the driving gear, the front chain steering gear and the rear chain steering gear are connected through chain transmission.
The heavy hammer guide rail is a structure formed by welding two channel steel and provided with a semi-closed space, the heavy hammer is square, and the heavy hammer is arranged in the semi-closed space.
The contact surface of the heavy hammer and the channel steel is arc-shaped.
And the drill rod is fixed in the middle opening of the heavy hammer.
And the front end of the steel drill rod is provided with an air outlet.
The trolley fixing rod arranged in the horizontal direction and the trolley fixing pin arranged in the vertical direction are arranged on the movable trolley.
The trolley fixing pin is fixed in the middle of the movable trolley, and the trolley fixing rod is fixed at one end of the movable trolley.
A method for automatically poking the tuyere of blast furnace includes such steps as moving the moving trolley to make the steel rod on the central line of tuyere, inserting the fixing pin of trolley, introducing high-pressure gas to the steel rod by pneumatic motor, starting pneumatic motor, driving the hammer of steel rod to move back and forth along the guide rail of heavy hammer, and using inertial kinetic energy to impact the tuyere for blocking mud.
The beneficial effects of the invention are as follows: the pneumatic rotary motor is utilized to drive the steel drill hammer to strike the tuyere to block mud back and forth, so that automatic tuyere poking operation is realized, the power is sufficient, the tuyere can be poked quickly, and the phenomena of harshness, high labor intensity of workers, low efficiency, hot air scalding, injury and medium gas during manual tuyere poking operation are avoided. In addition, the steel drill ventilation body is cooled, the phenomenon that the steel drill is deformed and cannot exit the tuyere blowing pipe due to high wind temperature during operation is avoided, the safety is ensured, and the operation efficiency is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic view of the installation of the present invention;
FIG. 3 is a top view of the present invention;
in the figure: drill steel 1, a heavy hammer 2, a heavy hammer guide rail 3, a guide rail bracket 4, a movable trolley 5, a trolley fixing rod 6, a trolley fixing pin 7, a pneumatic motor 8, a chain 9, a front chain steering gear 10, a rear chain steering gear 11, a drill steel cooling hose 12, a hose joint 13, a hose fixing buckle 14, a heavy hammer guide rail fixing mechanism 15, a guide rail fixing pin plate 16, a front chain link buckle 17, a rear chain link buckle 18, a furnace shell tuyere small sleeve jacking rod base 19 and a blowing pipe 20.
Detailed Description
The invention is further illustrated by way of example with reference to the accompanying drawings.
Referring to the accompanying drawings 1-3, an automatic tuyere poking device of a blast furnace comprises a steel drill 1, a heavy hammer 2, a heavy hammer guide rail 3, a guide rail bracket 4, a travelling car 5, a pneumatic motor 8, a chain 9, a front chain steering gear 10, a rear chain steering gear 11, a steel drill cooling hose 12 and a hose connector 13, wherein the steel drill 1 is of a hollow structure, the front end of the steel drill 1 is conical, the rear end of the steel drill 1 is provided with the hose connector 13, the cooling hose 12 is connected with the hose connector 13), and the rear end of the steel drill 1 is fixed on the heavy hammer 2; the heavy hammer 2 is connected to the heavy hammer guide rail 3 in a sliding way, the heavy hammer guide rail 3 is horizontally fixed on the guide rail bracket 4, and the guide rail bracket 4 is fixed on the movable trolley 5; the two ends of the weight guide rail 3 are respectively provided with a front chain steering gear 10 and a rear chain steering gear 11, the pneumatic motor 8 is fixed in the middle of the weight guide rail 3, the output shaft of the pneumatic motor 8 is provided with a driving gear, and the driving gear, the front chain steering gear 10 and the rear chain steering gear 11 are in transmission connection through the chain 9.
In this embodiment, referring to fig. 1-3, the weight guide rail 3 is a guide rail welded by two channel steel and having a semi-closed space, the weight 2 is square, the square weight 2 is placed therein and can slide back and forth, two sides of the lower part of the weight 2 are processed into arc shapes, friction force with the channel steel supporting surface can be reduced, and when in use, the weight guide rail 3 is coated with lubricating oil, so that the back and forth sliding can be easily realized; drilling a hole in the center of the heavy hammer 2, inserting the steel drill 1 and welding the steel drill 1 at the rear end of the steel drill 1; the steel drill 1 is hollow, the front head is conical, the rear end is welded with a multi-pagoda-shaped connecting hose joint 13, a steel drill cooling hose 12 is connected, high-pressure gas is introduced, and the gas outlet is formed in the conical rear part of the steel drill 1; a pneumatic rotary motor 8 with a driving gear is arranged at the lower part of the middle of the heavy hammer guide rail 3, a chain front steering gear 10 and a chain rear steering gear 11 are respectively arranged at two ends of the heavy hammer guide rail 3, a chain link front lock catch 17 and a chain link rear lock catch 18 are respectively arranged at the front and rear of the lower part of the heavy hammer 2, and a chain 9 is hung to form a system capable of moving back and forth; a hose fixing buckle 14 of the steel drill cooling hose 12 is arranged in the middle of the upper part of the heavy hammer guide rail, so that the steel drill cooling hose 12 can be prevented from blocking the steel drill 1 to move back and forth during operation; the heavy hammer guide rail 3 is welded on a movable trolley 5 provided with universal wheels, the front end of the movable trolley 5 is fixed on a furnace shell tuyere small sleeve jacking lever base 19 through a trolley fixing rod 6, and two fixing pins 7 are arranged in the middle of the movable trolley 5, so that the movable trolley 5 can be fixed on the ground; the front section of the weight guide rail 3 is provided with a fixing mechanism 15 which is fixed on the tuyere stock 20 through a guide rail fixing pin plate 16.
When the air port is poked, the invention is pushed to the air port, the movable trolley 5 is adjusted to enable the steel drill rod 1 to be on the center line of the air port, all fixing pins are inserted, high-pressure gas is introduced into the steel drill rod 1 through the pneumatic motor 8, the air port blowing pipe inserting plate is opened, the pneumatic motor 8 is started, the steel drill hammer system is driven to move back and forth by controlling the rotation direction of the motor, the air port blocking mud is impacted by utilizing inertia kinetic energy until the air port blocking mud is poked, the pneumatic motor 8 is operated to withdraw the air port blowing pipe 20, and the air port inserting plate is inserted, so that the operation is completed.
Claims (6)
1. An automatic tuyere poking device of a blast furnace, which is characterized in that: the novel steel drill comprises a steel drill (1), a heavy hammer (2), a heavy hammer guide rail (3), a guide rail bracket (4), a movable trolley (5), a pneumatic motor (8), a chain (9), a front chain steering gear (10), a rear chain steering gear (11), a steel drill cooling hose (12) and a hose connector (13), wherein the steel drill (1) is of a hollow structure, the front end of the steel drill (1) is conical, the hose connector (13) is arranged at the rear end of the steel drill (1), the cooling hose (12) is connected with the hose connector (13), and the rear end of the steel drill (1) is fixed on the heavy hammer (2); the heavy hammer (2) is connected to the heavy hammer guide rail (3) in a sliding manner, the heavy hammer guide rail (3) is horizontally fixed on the guide rail bracket (4), and the guide rail bracket (4) is fixed on the movable trolley (5); the two ends of the heavy hammer guide rail (3) are respectively provided with a chain front steering gear (10) and a chain rear steering gear (11), the pneumatic motor (8) is fixed in the middle of the heavy hammer guide rail (3), a driving gear is arranged on an output shaft of the pneumatic motor (8), and the driving gear, the chain front steering gear (10) and the chain rear steering gear (11) are in transmission connection through a chain (9); the heavy hammer guide rail (3) is a structure formed by welding two channel steels and provided with a semi-closed space, the heavy hammer (2) is square, and the heavy hammer (2) is arranged in the semi-closed space; the movable trolley (5) is provided with a trolley fixing rod (6) arranged in the horizontal direction and a trolley fixing pin (7) arranged in the vertical direction.
2. The automatic tuyere poking device for a blast furnace according to claim 1, wherein: the contact surface of the heavy hammer (2) and the channel steel is arc-shaped.
3. An automatic tuyere poking device for a blast furnace according to claim 1 or 2, wherein: and the drill rod (1) is fixed in the middle opening of the heavy hammer (2).
4. An automatic tuyere poking device for a blast furnace according to claim 1 or 2, wherein: the front end of the steel drill rod (1) is provided with an air outlet hole.
5. The automatic tuyere poking device for a blast furnace according to claim 1, wherein: the trolley fixing pin (7) is fixed in the middle of the movable trolley (5), and the trolley fixing rod (6) is fixed at one end of the movable trolley (5).
6. A method for automatically poking an air port of a blast furnace is characterized by comprising the following steps: when the automatic tuyere poking device for the blast furnace is used for poking a tuyere, which is defined in any one of claims 1-5, the device is pushed to the tuyere, the moving trolley (5) is adjusted, the steel bar (1) is arranged on the center line of the tuyere, the trolley fixing pin (7) is inserted, high-pressure gas is introduced into the steel bar (1) through the pneumatic motor (8), the pneumatic motor (8) is started, the heavy hammer (2) is driven to move back and forth along the heavy hammer guide rail (3) by controlling the rotation direction of the motor, and the inertial kinetic energy is utilized to impact the tuyere to block mud until the tuyere is poked to block mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911191037.6A CN110878382B (en) | 2019-11-28 | 2019-11-28 | Automatic tuyere poking device and method for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911191037.6A CN110878382B (en) | 2019-11-28 | 2019-11-28 | Automatic tuyere poking device and method for blast furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110878382A CN110878382A (en) | 2020-03-13 |
| CN110878382B true CN110878382B (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911191037.6A Active CN110878382B (en) | 2019-11-28 | 2019-11-28 | Automatic tuyere poking device and method for blast furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN110878382B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676338B (en) * | 2020-06-18 | 2024-05-07 | 安徽长江钢铁股份有限公司 | Movable hammer device for poking blast furnace tuyere |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2321543A1 (en) * | 1975-08-20 | 1977-03-18 | Usinor | Tuyere replacement on blast furnaces - where mobile insertion tool is fitted with ram hammering tuyere into tymp |
| JP2012184459A (en) * | 2011-03-03 | 2012-09-27 | Nittetsu Yawata Engineering Co Ltd | Impact tuyere replacing apparatus |
| CN203741357U (en) * | 2014-01-09 | 2014-07-30 | 鞍钢股份有限公司 | Blast furnace tuyere-opening compacting trolley |
| CN204265780U (en) * | 2014-11-26 | 2015-04-15 | 莱芜钢铁集团有限公司 | Slag cleaning device |
| CN207512200U (en) * | 2017-08-24 | 2018-06-19 | 江苏安全技术职业学院 | The pneumatic vent device of blast furnace |
| CN208917232U (en) * | 2018-09-05 | 2019-05-31 | 鞍钢股份有限公司 | A kind of blast furnace beats air port tool connection structure |
| CN211546592U (en) * | 2019-11-28 | 2020-09-22 | 邯郸钢铁集团有限责任公司 | Automatic air opening poking device for blast furnace |
-
2019
- 2019-11-28 CN CN201911191037.6A patent/CN110878382B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2321543A1 (en) * | 1975-08-20 | 1977-03-18 | Usinor | Tuyere replacement on blast furnaces - where mobile insertion tool is fitted with ram hammering tuyere into tymp |
| JP2012184459A (en) * | 2011-03-03 | 2012-09-27 | Nittetsu Yawata Engineering Co Ltd | Impact tuyere replacing apparatus |
| CN203741357U (en) * | 2014-01-09 | 2014-07-30 | 鞍钢股份有限公司 | Blast furnace tuyere-opening compacting trolley |
| CN204265780U (en) * | 2014-11-26 | 2015-04-15 | 莱芜钢铁集团有限公司 | Slag cleaning device |
| CN207512200U (en) * | 2017-08-24 | 2018-06-19 | 江苏安全技术职业学院 | The pneumatic vent device of blast furnace |
| CN208917232U (en) * | 2018-09-05 | 2019-05-31 | 鞍钢股份有限公司 | A kind of blast furnace beats air port tool connection structure |
| CN211546592U (en) * | 2019-11-28 | 2020-09-22 | 邯郸钢铁集团有限责任公司 | Automatic air opening poking device for blast furnace |
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| Publication number | Publication date |
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| CN110878382A (en) | 2020-03-13 |
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