CN104278126B - A kind of replacing options of slag blocking plate of converter - Google Patents
A kind of replacing options of slag blocking plate of converter Download PDFInfo
- Publication number
- CN104278126B CN104278126B CN201410547135.XA CN201410547135A CN104278126B CN 104278126 B CN104278126 B CN 104278126B CN 201410547135 A CN201410547135 A CN 201410547135A CN 104278126 B CN104278126 B CN 104278126B
- Authority
- CN
- China
- Prior art keywords
- slag
- slag trap
- bin
- trap
- car
- 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.)
- Expired - Fee Related
Links
- 239000002893 slag Substances 0.000 title claims abstract description 177
- 230000000903 blocking effect Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract 1
- 101100204059 Caenorhabditis elegans trap-2 gene Proteins 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The present invention relates to a kind of replacing options of slag blocking plate of converter, comprise: under the slag car being provided with baffle plate storehouse is moved to skimming plate to be repaired, by jack, the skimming plate to be repaired under dismounting is placed in described baffle plate storehouse, then removes this slag car with skimming plate to be repaired; Then intact skimming plate is moved to by the described slag car near the position of dismantling skimming plate, by described jack, this intact skimming plate is lifted into original position of dismantling skimming plate and also fixes.Method low cost of the present invention, safely and fast, the replacing efficiency of skimming plate can be improved, reduce replacing construction, reduce the participation of maintainer, often change one piece of skimming plate, only need 6 people can complete for 6 hours, and can working aloft be avoided, ensure the safety of staff.
Description
Technical Field
The invention relates to the field of converters, in particular to a method for replacing a converter slag trap.
Background
In a converter production line of a metallurgical enterprise, a lower slag baffle of the converter plays an important role as an accessory of the converter in the process of smelting molten steel. During the falling process of the splashed slag at the furnace mouth and the like, the slag baffle plate changes the falling direction of the slag to ensure that the slag falls into a lower slag basin of the furnace and simultaneously protects the building infrastructure at two sides of the lower part of the converter. The slag trap under long-term operation can take place to damage, needs to change it.
Fig. 1 is a schematic position diagram of a slag trap under a converter, as shown in the figure, the converter 3 is installed on a converter support 5, a nine-meter platform 4 serving as a production and maintenance platform of the converter is located around the converter 3, and a gap exists between the nine-meter platform 4 and the converter 3. A slag trap 1 and a shroud 2 are installed below the converter 3. Referring to fig. 2 and 3, the slag trap 1 is divided into a slag trap 1-1 closer to the gap and a slag trap 1-2 farther from the gap according to the distance between the slag trap 1 and the gap between the nine-meter platform 4 and the converter 3. When the slag trap under the converter is replaced, the gap between the nine-meter platform 4 and the converter 3 is used as a hoisting port due to the position of the building 7 around the converter, and the slag trap 1-1 can be hoisted and conveyed down through the travelling crane main hook 8 because the slag trap 1-1 is closer to the hoisting port; and the slag trap 1-2 is far away from the hoisting opening, so the slag trap 1-2 needs to be horizontally transported to a proper position needing to be overhauled from the gap hoisting opening by using the chain block 10. The maintenance operation of the slag trap 1-2 belongs to overhead operation, and when the slag trap 1-2 with the weight of 2 tons is manually and horizontally transported by the chain block 10, the safety belt needs to be continuously picked and hung, the danger is high, the working efficiency is extremely low, and about 8 persons are needed for 10 hours when replacing one slag trap 1-2. If the whole slag trap of the whole wall body is just replaced, the overhaul time is longer.
At present, no safe and quick replacement mode with low cost exists, the replacement efficiency of the slag trap can be improved, the replacement time is shortened, and the participation of maintainers is reduced.
Disclosure of Invention
The invention aims to overcome the defects of low efficiency and high danger of a slag trap replacing method in the prior art, and thus provides a converter slag trap replacing method.
In order to achieve the above object, the present invention provides a method for replacing a slag trap of a converter, comprising:
moving the slag car provided with the baffle cabin to the position below a slag trap to be maintained, placing the disassembled slag trap to be maintained in the baffle cabin through a chain block, and then moving the slag car with the slag trap to be maintained; moving the intact slag trap to the position near the position of the detached slag trap through the slag car, and hoisting the intact slag trap to the original position of the detached slag trap through the chain block and fixing the intact slag trap; wherein,
the baffle cabin is in a three-dimensional box shape with an opening at the top end and a closed bottom end and a trapezoidal section in the vertical direction.
In the above technical solution, the method further comprises:
step 1), when the slag car is positioned in a slag car channel outside the lower part of the slag trap, the hoisting baffle bin is installed to the top of the slag car and is firmly connected with the slag car, and simultaneously the converter is shaken to be in a horizontal state;
step 2), moving the operating slag car to a channel at the bottom of the converter, approaching the lower part of the slag trap to be maintained, and conveying equipment comprising a chain block, a wrench and a bolt to the position of the slag trap to be maintained through the slag car;
step 3), mounting the chain block to the upper part of the slag trap to be maintained;
step 4), connecting the chain block hook with a slag trap to be maintained, detaching the slag trap, pulling the chain block to place the slag trap into a baffle bin of a lower slag car, and then loosening the connection between the chain block and the slag trap;
step 5), when the slag car is started to move to a slag car channel outside the lower part of the slag trap, the slag trap to be maintained is lifted out of the baffle bin, and the intact slag trap is lifted into the baffle bin;
step 6), starting the slag car to move to a channel at the lower part of the disassembled slag trap, and ensuring that the horizontal position of the slag trap in the baffle bin is matched with the position of the disassembled slag trap;
step 7), connecting the chain block with the well-connected slag trap, pulling the chain block to pull the well-connected slag trap to the position of the disassembled slag trap, fastening and fixing the slag trap after adjusting the position of the well-connected slag trap, and loosening the connection between the chain block and the slag trap;
and 8), disassembling the chain block, and conveying equipment comprising the chain block and the wrench bolt back to the ground through a slag car to finish maintenance.
Among the above-mentioned technical scheme, baffle storehouse includes: the first bin edge, the bin inclined plane plate, the second bin edge and the bin bottom panel; the bin inclined plane plate is connected to the bin bottom panel, and the included angle between the bin inclined plane plate and the bin bottom panel is 60 degrees; the first bin edge and the second bin edge are respectively welded on the bin inclined plane plate and the bin bottom panel, the bin bottom panel is provided with bolt holes, and the distance between the first bin edge and the second bin edge is slightly larger than the width of the slag baffle plate to be replaced.
The invention has the advantages that:
the method has the advantages of low cost, safety and rapidness, can improve the replacement efficiency of the slag trap, reduce the replacement time, reduce the participation of maintainers, can be completed by 6 persons for 6 hours when replacing one slag trap, can avoid high-altitude operation, and ensures the safety of workers.
Drawings
FIG. 1 is a schematic view of the position of a lower slag trap of a converter furnace;
FIG. 2 is a schematic view of the position of a converter in the case of replacing a lower slag trap of the prior art;
FIG. 3 is a schematic view of a lower slag trap of a prior art replacement furnace;
FIG. 4 is a schematic view of an auxiliary device for a method of replacing a lower slag trap of a furnace according to the present invention;
FIG. 5 is a schematic view of a baffled silo in an auxiliary device of a method of replacing a lower slag deflector of a furnace of the present invention;
FIG. 6 is a sectional view of a dam chamber in an auxiliary device of a method for replacing a lower slag trap of a furnace according to the present invention;
FIG. 7 is a schematic view of an application scenario for replacing a slag trap under a furnace.
Description of the drawings
1 slag trap 1-1 and the slag trap with the closer gap
1-2 and slag trap 2 protecting plate far away from gap
3 converter 4 nine meters platform
5 converter supporting 6 slag car
7 8 driving main hooks of building body
9 baffle plate bin 9-1 first bin edge
9-2 bin inclined panel 9-3 second bin edge
9-4 bin bottom panel 9-5 bolt hole
10 chain block
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Before describing the method of replacing the slag trap of the converter of the present invention in detail, the auxiliary equipment baffle box used in the method of replacing the slag trap of the present invention will be described.
Referring to fig. 4-6, the baffle box 9 is a three-dimensional box shape with an open top end and a closed bottom end and a trapezoidal vertical cross section, and comprises: a first bin edge 91, a bin inclined plane plate 92, a second bin edge 93 and a bin bottom panel 94; the bin inclined plane plate 92 is connected to the bin bottom panel 94, and the included angle between the bin inclined plane plate 92 and the bin bottom panel 94 is 60 degrees; the first bin edge 91 and the second bin edge 93 are respectively welded on the bin inclined plane plate 92 and the bin bottom panel 94, the bin bottom panel 94 is provided with a bolt hole 95, and the distance between the first bin edge 91 and the second bin edge 93 is slightly larger than the width of the slag baffle plate 1 to be replaced. As shown in fig. 4, the dam bin 9 may be mounted on a slag car 6.
Referring to fig. 7, the method for replacing the slag trap of the converter of the present invention includes the steps of:
step 1), when the slag car 6 is positioned in a slag car channel outside the lower part of the slag baffle 1, the hoisting baffle bin 9 is installed at the top of the slag car 6 and is firmly connected with the slag car 6 through a bolt hole 95 of a bin bottom panel 94, and meanwhile, the converter 3 is shaken to be in a horizontal state;
step 2), moving the slag car 6 to a channel at the bottom of the converter 3, approaching the lower part of the slag trap 1 to be overhauled, and conveying equipment such as a chain block 10, a wrench, a bolt and the like to the position for maintaining the slag trap 1 through the height of the slag car 6;
step 3), mounting the chain block 10 on the upper part of the slag trap 1, and fixing firmly;
step 4), connecting a hook of the chain block 10 with the slag trap 1, disassembling the old slag trap 1, pulling the chain block 10 to place the slag trap 1 into a baffle cabin 9 of the lower slag car 6, and then loosening the connection between the chain block 10 and the slag trap 1;
step 5), when the slag car 6 is started to move to a slag car channel outside the lower part of the slag trap 1, the old slag trap 1 is lifted out of the baffle bin 9, the new slag trap 1 is lifted into the baffle bin 9, and the first bin edge 9-1 and the second bin edge 9-3 on the two sides of the baffle bin 9 fix the slag trap 1;
step 6), starting the slag car 6 to move to a channel at the lower part of the slag trap 1 to be overhauled, and moving an operation button of the slag car 1 to ensure that the slag car accurately reaches the lower part of the slag trap 1, so as to ensure that the horizontal position of the slag trap 1 in the baffle bin 9 is matched with the position of the dismantled slag trap 1;
step 7), connecting the chain block 10 with the slag trap 1, pulling the chain block 10 to pull the slag trap 1 to the position where the slag trap 1 is detached, fastening and fastening the slag trap 1 after adjusting the position of the slag trap 1, and loosening the connection between the chain block 10 and the slag trap 1;
and 8), disassembling the chain block 10, and transporting the equipment such as the chain block 10, the wrench bolt and the like back to the ground through the slag car 6 to finish the overhaul.
And if a plurality of slag baffles on the same surface need to be replaced in one overhaul process, repeatedly executing the steps 4) to 7).
The method has low cost, safety and rapidness, can improve the replacement efficiency of the slag trap, reduce the replacement time and reduce the participation of maintainers, can be completed by 6 persons for 6 hours when replacing one slag trap, can avoid the danger caused by long-distance horizontal transportation during high-altitude operation, and ensures the safety of workers.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (2)
1. A method for replacing a converter slag trap comprises the following steps:
moving the slag car provided with the baffle cabin to the position below a slag trap to be maintained, placing the disassembled slag trap to be maintained in the baffle cabin through a chain block, and then moving the slag car with the slag trap to be maintained; moving the intact slag trap to the position near the position of the detached slag trap through the slag car, and hoisting the intact slag trap to the original position of the detached slag trap through the chain block and fixing the intact slag trap; wherein,
the baffle cabin is a three-dimensional box shape with an opening at the top end and a closed bottom end and a trapezoidal section in the vertical direction;
the method further comprises the following steps:
step 1), when the slag car (6) is positioned in a slag car channel outside the lower part of the slag baffle (1), the hoisting baffle bin (9) is installed at the top of the slag car (6) and is firmly connected with the slag car (6), and meanwhile, the converter (3) is shaken to be in a horizontal state;
step 2), moving the slag car (6) to a channel at the bottom of the converter (3), approaching the lower part of the slag trap (1) to be overhauled, and conveying equipment comprising a chain block (10), a wrench and a bolt to the position of the slag trap (1) to be maintained through the slag car (6);
step 3), mounting the chain block (10) to the upper part of the slag trap (1) to be maintained;
step 4), connecting a hook of the chain block (10) with the slag trap (1) to be maintained, disassembling the slag trap (1), pulling the chain block (10) to place the slag trap (1) into a baffle cabin (9) of a lower slag car (6), and then loosening the connection between the chain block (10) and the slag trap (1);
step 5), when the slag car (6) is started to move to a slag car channel outside the lower part of the slag trap (1), the slag trap (1) to be maintained is lifted out of the baffle bin (9), and the intact slag trap (1) is lifted into the baffle bin (9);
step 6), starting the slag car (6) to move to a channel at the lower part of the disassembled slag trap (1), and ensuring that the horizontal position of the slag trap (1) in the baffle bin (9) is matched with the position of the disassembled slag trap (1);
step 7), connecting the inverted chain (10) with the intact slag trap (1), pulling the inverted chain (10) to pull the intact slag trap (1) to the position of the detached slag trap (1), fastening and fixing the slag trap (1) after adjusting the position of the intact slag trap (1), and loosening the connection between the inverted chain (10) and the slag trap (1);
and 8), disassembling the chain block (10), and conveying equipment comprising the chain block (10), a wrench and a bolt back to the ground through the slag car (6) to finish maintenance.
2. The method for replacing a converter slag trap according to claim 1, wherein the dam chamber (9) comprises: a first bin edge (91), a bin inclined panel (92), a second bin edge (93) and a bin bottom panel (94); the bin inclined plane plate (92) is connected to the bin bottom panel (94), and the included angle between the bin inclined plane plate and the bin bottom panel is 60 degrees; the first bin edge (91) and the second bin edge (93) are respectively welded on a bin inclined plane plate (92) and a bin bottom panel (94), the bin bottom panel (94) is provided with a bolt hole (95), and the distance between the first bin edge (91) and the second bin edge (93) is slightly larger than the width of the slag baffle plate (1) to be replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410547135.XA CN104278126B (en) | 2014-10-16 | 2014-10-16 | A kind of replacing options of slag blocking plate of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410547135.XA CN104278126B (en) | 2014-10-16 | 2014-10-16 | A kind of replacing options of slag blocking plate of converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104278126A CN104278126A (en) | 2015-01-14 |
| CN104278126B true CN104278126B (en) | 2016-03-16 |
Family
ID=52253467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410547135.XA Expired - Fee Related CN104278126B (en) | 2014-10-16 | 2014-10-16 | A kind of replacing options of slag blocking plate of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104278126B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222361A (en) * | 2016-08-24 | 2016-12-14 | 莱芜钢铁集团有限公司 | A kind of method changing bell of ladle refining furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201686657U (en) * | 2010-05-17 | 2010-12-29 | 莱芜市泰山焦化有限公司 | Coke oven door disengaging maintenance device |
| KR101160285B1 (en) * | 2010-11-26 | 2012-06-28 | 주식회사 포스코 | Apparatus for preventing slag pot transferring car from stucking |
| CN202380021U (en) * | 2011-12-06 | 2012-08-15 | 武汉钢铁(集团)公司 | Novel slag stopping vehicle |
| CN202830073U (en) * | 2012-09-06 | 2013-03-27 | 四川省川威集团有限公司 | Revolving furnace slag blocking structure |
| CN202968598U (en) * | 2012-12-05 | 2013-06-05 | 西林钢铁集团有限公司 | Slag collecting car for converter |
-
2014
- 2014-10-16 CN CN201410547135.XA patent/CN104278126B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201686657U (en) * | 2010-05-17 | 2010-12-29 | 莱芜市泰山焦化有限公司 | Coke oven door disengaging maintenance device |
| KR101160285B1 (en) * | 2010-11-26 | 2012-06-28 | 주식회사 포스코 | Apparatus for preventing slag pot transferring car from stucking |
| CN202380021U (en) * | 2011-12-06 | 2012-08-15 | 武汉钢铁(集团)公司 | Novel slag stopping vehicle |
| CN202830073U (en) * | 2012-09-06 | 2013-03-27 | 四川省川威集团有限公司 | Revolving furnace slag blocking structure |
| CN202968598U (en) * | 2012-12-05 | 2013-06-05 | 西林钢铁集团有限公司 | Slag collecting car for converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104278126A (en) | 2015-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103266192B (en) | Hoisting method for replacing cooling wall in overhauling of blast furnace | |
| CN101177959A (en) | Curtain wall unit hanging equipment and construction method thereof | |
| CN105177202B (en) | A kind of blast furnace overhaul method | |
| CN109440985A (en) | Super high-rise building super large curtain wall unit hydraulic synchronizing lifting system and its construction method | |
| CN104278126B (en) | A kind of replacing options of slag blocking plate of converter | |
| CN109055637B (en) | Hydraulic lifting process for mounting furnace shell in blast furnace overhaul | |
| CN102399925A (en) | Method for replacing cooling wall of blast furnace | |
| CN206447894U (en) | A kind of blast furnace gun machine slew gear equipment integral replacement device | |
| CN106121254B (en) | Construction method of heavy component transportation system after disassembly by reverse construction method | |
| CN107267708B (en) | The replacing options of converter alloy turntable feeder pipe | |
| CN103759538A (en) | Method for replacing burner block of heating furnace with reserved furnace top | |
| CN108946470B (en) | A kind of replacing options for converter entirety flue | |
| CN108975171B (en) | Segmented accurate dismounting device for water beam and upright column of heating furnace and use method | |
| CN108913841B (en) | Method for replacing converter apron board | |
| WO2021035974A1 (en) | Transportation system and method for blast furnace shell | |
| CN207313637U (en) | A kind of more changing device of material distribution chute on furnace top of blast furnace | |
| CN208932786U (en) | Cover plate for side ditch demoulds component | |
| CN106477350A (en) | The method for dismounting of bridge ship loader-unloader | |
| CN204848915U (en) | Blast furnace stave overhauls conveyer | |
| CN110203637A (en) | A kind of overhead chain conveyer maintenance platform | |
| CN106639288B (en) | Method for installing and using vertical transport platform for stone in outer wall scaffold | |
| CN102489984B (en) | Method for quickly replacing crane beam without using hoist for construction | |
| CN212609030U (en) | Special tool for hoisting rubber lining plate of ball mill | |
| CN216764116U (en) | Electric hoist maintenance mechanism | |
| CN110669898B (en) | Method for replacing 120-ton converter chute |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Qinguo Inventor after: Lu Gang Inventor after: Zhang Ming Inventor after: Chen Chuansheng Inventor after: Li Liang Inventor after: Liu Juan Inventor after: Zhang Li Inventor after: Wang Yong Inventor after: Zhang Pu Inventor after: Liu Zheng Inventor before: Xu Qinguo Inventor before: Chen Chuansheng Inventor before: Zhang Ming Inventor before: Li Liang Inventor before: Wang Yong Inventor before: Zhang Pu Inventor before: Liu Zheng Inventor before: Lu Gang |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20181016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |