CN110926228B - Dismounting device and dismounting method for blanking flow regulating valve for blast furnace - Google Patents
Dismounting device and dismounting method for blanking flow regulating valve for blast furnace Download PDFInfo
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- CN110926228B CN110926228B CN201911053688.9A CN201911053688A CN110926228B CN 110926228 B CN110926228 B CN 110926228B CN 201911053688 A CN201911053688 A CN 201911053688A CN 110926228 B CN110926228 B CN 110926228B
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- regulating valve
- flow regulating
- supporting arm
- walking
- blanking flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0075—Regulation of the charge quantity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention provides a dismounting device and a dismounting method for a blanking flow regulating valve for a blast furnace, wherein the dismounting device comprises: a top rail; a bottom rail; the long supporting arm comprises a beam part fixedly connected with the top of the blanking flow regulating valve and an inclined beam part which is integrally formed with the beam part and extends towards the top rail; the first traveling assembly comprises a first wheel shaft detachably connected with the oblique beam part; the short supporting arm is fixedly connected with the bottom of the discharging flow regulating valve and extends towards the bottom track; the second walking assembly comprises a second wheel shaft detachably connected with the short supporting arm; the traction assembly comprises a connecting lug fixedly connected with the blanking flow regulating valve and a traction rope detachably connected with the connecting lug; a traction device; a lifting device. The invention can greatly improve the dismounting efficiency of the blanking flow regulating valve, reduce the labor cost and reduce the safety risk of dismounting the blanking flow regulating valve.
Description
Technical Field
The invention relates to the technical field of blast furnace maintenance, in particular to a dismounting device and a dismounting method for a feed flow regulating valve for a blast furnace.
Background
And the discharging flow regulating valve of the pot-type blast furnace is used as key equipment of a blast furnace top material distribution system and is used for conveying materials in a weighing material tank at the furnace top into a hearth. Because the blast furnace needs to distribute materials continuously during production, the blanking flow regulating valve is used as a key channel of furnace top materials, the inner lining or the surface of the furnace top materials are damaged to different degrees under the long-term washing of material circulation, and the damaged blanking flow regulating valve needs to be replaced integrally during the fixed maintenance of the blast furnace. Because the blast furnace adopts the parallel tank type system for material distribution, the operation site space of the blast furnace discharging flow regulating valve is narrow, and the operation of the adjacent side holes exists, so that the safety risk is high.
At present, unloading stream governing valve is in dismouting in-process of transporting, and the main work load is transporting after demolising it and before the installation, transports at every turn all need to use chain block askew to draw to hang repeatedly the aversion to one side, could accomplish and demolish back and before the installation transporting work, and the engineering time is more, and labor efficiency is lower, and has great safe risk.
Disclosure of Invention
In view of the above drawbacks of the prior art, the present invention provides a device and a method for detaching a down flow regulating valve for a blast furnace, which can greatly improve the detaching efficiency of the down flow regulating valve, reduce labor cost, avoid the use of a chain block to perform a slant-pulling and slant-hanging operation on the down flow regulating valve, and reduce the safety risk of detaching the down flow regulating valve.
In order to solve the above technical problems, the present invention provides a device for detaching a discharge flow regulating valve for a blast furnace, the discharge flow regulating valve having a top flange detachably connected to an upstream device and a bottom flange detachably connected to a downstream device, the device comprising:
a top rail positioned above the blanking flow regulating valve;
a bottom rail positioned below the blanking flow regulating valve;
the long supporting arm comprises a beam part fixedly connected with the top of the blanking flow regulating valve and an inclined beam part which is integrally formed with the beam part and extends towards the top rail;
the first walking assembly comprises a first wheel shaft detachably connected with the oblique beam part, and a first walking wheel and a first blocking cover for preventing the first walking wheel from separating from the first wheel shaft are arranged on the first wheel shaft;
the short supporting arm is fixedly connected with the bottom of the discharging flow regulating valve and extends towards the bottom track;
the second walking assembly comprises a second wheel shaft detachably connected with the short supporting arm, and a second walking wheel and a second blocking cover for preventing the second walking wheel from being separated from the second wheel shaft are arranged on the second wheel shaft;
the traction assembly comprises a connecting lug fixedly connected with the blanking flow regulating valve and a traction rope detachably connected with the connecting lug;
the traction device is used for pulling the traction rope to move the blanking flow regulating valve along the top rail;
the lifting device is used for lifting the blanking flow regulating valve.
Preferably, the first travelling wheel comprises a first large-diameter section and a first small-diameter section in sequence towards the direction far away from the long supporting arm, and the first small-diameter section is arranged on the top rail in a rolling mode.
Preferably, the second walking wheel includes second major diameter section and second path section in proper order towards the direction of keeping away from short support arm, and the second path section rolls and sets up on the end track.
Preferably, the hauling cable is made of steel wires.
Preferably, the traction device is an electric hoist.
Preferably, the lifting device is a travelling crane.
The invention also provides a dismounting method of the dismounting device adopting the blanking flow regulating valve for the blast furnace, which comprises the following steps:
step S1, when the blast furnace stops, a first wheel shaft of a first walking assembly is arranged on a long supporting arm, a second wheel shaft of a second walking assembly is arranged on a short supporting arm, the first walking wheel is confirmed to be positioned above a top track and the second walking wheel is confirmed to be positioned above a bottom track, and a traction rope is tied on a connecting lug;
step S2, dismantling bolt assemblies on a top flange and a bottom flange of the material flow regulating valve, enabling a first travelling wheel to fall on a top track and enabling a second travelling wheel to fall on a bottom track;
step S3, pulling the traction rope through the traction device, moving the dismantled material flow regulating valve to a hoisting area along a top rail, and hoisting the dismantled material flow regulating valve to an equipment replacement area through the hoisting device;
step S4, detaching the first walking assembly from the long supporting arm of the detached downstream regulating valve and installing the first walking assembly on the long supporting arm of the to-be-installed downstream regulating valve, detaching the second walking assembly from the short supporting arm of the detached downstream regulating valve and installing the second walking assembly on the short supporting arm of the to-be-installed downstream regulating valve, and hoisting the to-be-installed downstream regulating valve from the device replacement area to the hoisting area through the hoisting device;
step S5, pulling a traction rope through a traction device, and transporting the blanking flow regulating valve to be installed from the hoisting area to the installation area;
and step S6, the discharging flow regulating valve is respectively assembled and connected with the upstream equipment and the downstream equipment, then the first walking component is detached from the long supporting arm of the discharging flow regulating valve to be installed, and the second walking component is detached from the short supporting arm of the discharging flow regulating valve to be installed.
As described above, the dismounting device and dismounting method for the discharge regulating valve for the blast furnace according to the present invention have the following beneficial effects: the top of the lower material flow regulating valve is arranged on a top rail above the lower material flow regulating valve in a sliding mode through the long supporting arm and the first walking assembly, and the bottom of the lower material flow regulating valve is arranged on a bottom rail below the lower material flow regulating valve in a sliding mode through the short supporting arm and the second walking assembly; the traction device can pull the traction rope to move the blanking flow adjusting valve from the installation area to the hoisting area or from the hoisting area to the installation area along the top rail; the lifting device can lift the blanking flow adjusting valve to the device replacing area from the lifting area, or lift the blanking flow adjusting valve to the lifting area from the device replacing area. Therefore, the dismounting device for the discharging flow regulating valve for the blast furnace can reduce the labor load of dismounting the discharging flow regulating valve, improve the working efficiency of dismounting the discharging flow regulating valve and reduce the safety risk of dismounting the discharging flow regulating valve.
Drawings
FIG. 1 is a schematic view of a mounting and dismounting device for a blast furnace blanking flow regulating valve according to the present invention;
FIG. 2 is a schematic view of a first travel assembly;
FIG. 3 is a schematic view of the second walking assembly.
Description of the element reference numerals
1 overhead rail
2 bottom track
3 Long support arm
31 beam part
32 inclined beam part
4 first traveling assembly
41 first wheel axle
42 first running wheel
421 first major diameter section
422 first small diameter section
43 first stop cover
5 short supporting arm
6 second running assembly
61 second wheel axle
62 second road wheel
621 second major diameter section
622 second minor diameter section
63 second stop cover
7 traction assembly
71 connecting lug
72 traction rope
8 blanking flow regulating valve
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions that the present disclosure can be implemented, so that the present disclosure is not limited to the technical essence, and any structural modifications, ratio changes, or size adjustments should still fall within the scope of the present disclosure without affecting the efficacy and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1, the present invention provides a device for attaching and detaching a down flow regulating valve for a blast furnace, wherein the down flow regulating valve 8 has a top flange detachably connected to an upstream device and a bottom flange detachably connected to a downstream device, the device comprising:
a top rail 1 located above the discharge flow regulating valve 8;
a bottom rail 2 positioned below the discharge flow regulating valve 8;
the long supporting arm 3 comprises a beam part 31 fixedly connected with the top of the blanking flow regulating valve 8 and an inclined beam part 32 which is integrally formed with the beam part 31 and extends towards the top rail 1;
a first traveling assembly 4, the first traveling assembly 4 including a first wheel shaft 41 detachably connected to the diagonal portion 32, the first wheel shaft 41 being provided with a first traveling wheel 42 and a first blocking cover 43 for preventing the first traveling wheel 42 from being separated from the first wheel shaft 41;
the short supporting arm 5 is fixedly connected with the bottom of the blanking flow regulating valve 8 and extends towards the bottom track 2;
the second walking assembly 6 comprises a second wheel shaft 61 detachably connected with the short supporting arm 5, and a second walking wheel 62 and a second stop cover 63 for preventing the second walking wheel 62 from separating from the second wheel shaft 61 are arranged on the second wheel shaft 61;
the traction assembly 7 comprises a connection lug 71 fixedly connected with the blanking flow regulating valve 8 and a traction rope 72 detachably connected with the connection lug 71;
a traction device for pulling the traction rope 72 to move the blanking flow regulating valve 8 along the top rail 1;
and the lifting device is used for lifting the blanking flow regulating valve 8.
In the invention, the top of the blanking flow regulating valve 8 is arranged on the top track 1 above the blanking flow regulating valve 8 in a sliding way through the long supporting arm 3 and the first walking component 4, and the bottom of the blanking flow regulating valve 8 is arranged on the bottom track 2 below the blanking flow regulating valve 8 in a sliding way through the short supporting arm 5 and the second walking component 6; the pulling device is capable of pulling the pulling rope 72 to move the blanking flow regulating valve 8 along the top rail 1 from the installation area to the hoisting area or from the hoisting area to the installation area; the lifting device can lift the blanking flow regulating valve 8 from the lifting area to the device replacing area or from the device replacing area to the lifting area. Therefore, the dismounting device for the discharging flow regulating valve for the blast furnace can reduce the labor load of dismounting the discharging flow regulating valve, improve the working efficiency of dismounting the discharging flow regulating valve and reduce the safety risk of dismounting the discharging flow regulating valve.
As shown in fig. 2, in order to prevent the downstream regulating valve 8 from moving laterally during the movement, the first traveling wheel 42 sequentially includes a first large diameter section 421 and a first small diameter section 422 in a direction away from the long supporting arm 3, and the first small diameter section 422 is arranged on the top rail 1 in a rolling manner; similarly, as shown in fig. 3, the second road wheel 62 sequentially includes a second large diameter section 621 and a second small diameter section 622 in a direction away from the short supporting arm 5, and the second small diameter section 622 is rollably disposed on the bottom rail 2.
The pull cord 72 is made of steel wire.
The traction device is an electric hoist.
The hoisting device is a travelling crane.
The invention also provides a dismounting method of the dismounting device of the blanking flow regulating valve for the blast furnace, which comprises the following steps:
step S1, when the blast furnace is blowing down, mounting the first wheel axle 41 of the first traveling unit 4 on the long support arm 3, mounting the second wheel axle 61 of the second traveling unit 6 on the short support arm 5, confirming that the first traveling wheel 42 is positioned above the top rail 1 and the second traveling wheel 62 is positioned above the bottom rail 2, and tying the pulling rope 72 to the engaging lug 71;
step S2, removing the bolt assemblies on the top flange and the bottom flange of the material flow adjusting valve 8, enabling the first travelling wheels 42 to fall on the top track 1 and the second travelling wheels 62 to fall on the bottom track 2;
step S3, pulling the traction rope 72 through a traction device, moving the dismantled material flow regulating valve 8 to a hoisting area along the top rail 1, and hoisting the dismantled material flow regulating valve 8 to an equipment replacement area through a hoisting device;
step S4, detaching the first walking assembly 4 from the long support arm 3 with the detached downstream regulating valve 8 and installing the walking assembly on the long support arm 3 with the to-be-installed downstream regulating valve 8, detaching the second walking assembly 6 from the short support arm 5 with the detached downstream regulating valve 8 and installing the walking assembly on the short support arm 5 with the to-be-installed downstream regulating valve 8, and hoisting the to-be-installed downstream regulating valve 8 from the device replacement area to the hoisting area through the hoisting device;
step S5, pulling the traction rope 72 through the traction device, and transporting the blanking flow adjusting valve 8 to be installed from the hoisting area to the installation area;
step S6, the material flow regulating valve 8 is assembled and connected to the upstream equipment and the downstream equipment, and then the first traveling assembly 4 is detached from the long support arm 3 to which the material flow regulating valve 8 is to be mounted, and the second traveling assembly 6 is detached from the short support arm 5 to which the material flow regulating valve 8 is to be mounted.
The disassembling and assembling method disclosed by the invention can greatly improve the disassembling and assembling efficiency of the blanking flow regulating valve 8, reduce the labor cost, avoid the inclined pulling and inclined hanging operation of the blanking flow regulating valve 8 by using a chain block, and reduce the safety risk of disassembling and assembling the blanking flow regulating valve 8.
In conclusion, the dismounting device and the dismounting method for the feed flow regulating valve for the blast furnace can greatly improve the dismounting efficiency of the feed flow regulating valve, reduce the labor cost, avoid the inclined pulling and inclined hanging operation of the feed flow regulating valve by using a chain block, and reduce the safety risk of dismounting the feed flow regulating valve. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A device for removing a downstream regulating valve from a blast furnace, said downstream regulating valve (8) having a top flange removably connected to an upstream device and a bottom flange removably connected to a downstream device, said device comprising:
a top rail (1) positioned above the blanking flow regulating valve (8);
a bottom rail (2) positioned below the blanking flow regulating valve (8);
the long supporting arm (3), the long supporting arm (3) includes the crossbeam department (31) fixedly connected with blanking flow control valve (8) top and with crossbeam department (31) integrated into one piece and oblique beam portion (32) extending to the top track (1);
the first walking assembly (4), the first walking assembly (4) comprises a first wheel shaft (41) detachably connected with the oblique beam part (32), a first walking wheel (42) and a first blocking cover (43) for preventing the first walking wheel (42) from separating from the first wheel shaft (41) are arranged on the first wheel shaft (41);
the short supporting arm (5), the short supporting arm (5) is fixedly connected with the bottom of the blanking flow regulating valve (8) and extends towards the bottom track (2);
the second walking assembly (6), the second walking assembly (6) comprises a second wheel shaft (61) detachably connected with the short supporting arm (5), and a second walking wheel (62) and a second blocking cover (63) for preventing the second walking wheel (62) from separating from the second wheel shaft (61) are arranged on the second wheel shaft (61);
the traction assembly (7), the traction assembly (7) comprises a connection lug (71) fixedly connected with the blanking flow regulating valve (8) and a traction rope (72) detachably connected with the connection lug (71);
the traction device is used for pulling the traction rope (72) to move the blanking flow regulating valve (8) along the top track (1);
the lifting device is used for lifting the blanking flow regulating valve (8).
2. The device for detaching and attaching the down flow regulating valve for the blast furnace according to claim 1, wherein: the first traveling wheel (42) sequentially comprises a first large-diameter section (421) and a first small-diameter section (422) towards the direction far away from the long supporting arm (3), and the first small-diameter section (422) is arranged on the top track (1) in a rolling mode.
3. The device for detaching and attaching the down flow regulating valve for the blast furnace according to claim 1, wherein: the second walking wheel (62) comprises a second large-diameter section (621) and a second small-diameter section (622) in sequence towards the direction far away from the short supporting arm (5), and the second small-diameter section (622) is arranged on the bottom rail (2) in a rolling mode.
4. The device for detaching and attaching the down flow regulating valve for the blast furnace according to claim 1, wherein: the hauling rope (72) is made of steel wires.
5. The device for detaching and attaching the down flow regulating valve for the blast furnace according to claim 1, wherein: the traction device is an electric hoist.
6. The device for detaching and attaching the down flow regulating valve for the blast furnace according to claim 1, wherein: the lifting device is a travelling crane.
7. A method for assembling and disassembling a device for assembling and disassembling a blast furnace down flow regulating valve according to any one of claims 1 to 6, comprising the steps of:
step S1, when the blast furnace is down, a first wheel shaft (41) of a first walking assembly (4) is installed on the long supporting arm (3), a second wheel shaft (61) of a second walking assembly (6) is installed on the short supporting arm (5), the first walking wheel (42) is confirmed to be positioned above the top rail (1) and the second walking wheel (62) is confirmed to be positioned above the bottom rail (2), and the traction rope (72) is tied on the connecting lug (71);
step S2, removing bolt assemblies on a top flange and a bottom flange of the discharging flow regulating valve (8), enabling a first travelling wheel (42) to fall on a top track (1) and enabling a second travelling wheel (62) to fall on a bottom track (2);
step S3, pulling a traction rope (72) through a traction device, moving the dismantled material flow regulating valve (8) to a hoisting area along a top rail (1), and then hoisting the dismantled material flow regulating valve (8) to a device replacement area through a hoisting device;
step S4, detaching the first walking component (4) from the long supporting arm (3) with the detached blanking flow regulating valve (8) and installing the walking component on the long supporting arm (3) with the to-be-installed blanking flow regulating valve (8), detaching the second walking component (6) from the short supporting arm (5) with the detached blanking flow regulating valve (8) and installing the walking component on the short supporting arm (5) with the to-be-installed blanking flow regulating valve (8), and hoisting the to-be-installed blanking flow regulating valve (8) from the device replacing area to the hoisting area through a hoisting device;
step S5, pulling a traction rope (72) through a traction device, and transporting the blanking flow adjusting valve (8) to be installed from the hoisting area to the installation area;
and step S6, the blanking flow regulating valve (8) is respectively assembled and connected with upstream equipment and downstream equipment, then the first walking assembly (4) is detached from the long supporting arm (3) of the blanking flow regulating valve (8) to be installed, and the second walking assembly (6) is detached from the short supporting arm (5) of the blanking flow regulating valve (8) to be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911053688.9A CN110926228B (en) | 2019-10-31 | 2019-10-31 | Dismounting device and dismounting method for blanking flow regulating valve for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911053688.9A CN110926228B (en) | 2019-10-31 | 2019-10-31 | Dismounting device and dismounting method for blanking flow regulating valve for blast furnace |
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| Publication Number | Publication Date |
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| CN110926228A CN110926228A (en) | 2020-03-27 |
| CN110926228B true CN110926228B (en) | 2021-04-27 |
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| CN201911053688.9A Active CN110926228B (en) | 2019-10-31 | 2019-10-31 | Dismounting device and dismounting method for blanking flow regulating valve for blast furnace |
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