CN107359550A - A kind of big cable of converter oxygen gun main motor colligation laying method on the way - Google Patents
A kind of big cable of converter oxygen gun main motor colligation laying method on the way Download PDFInfo
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- CN107359550A CN107359550A CN201710739677.0A CN201710739677A CN107359550A CN 107359550 A CN107359550 A CN 107359550A CN 201710739677 A CN201710739677 A CN 201710739677A CN 107359550 A CN107359550 A CN 107359550A
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- cable
- colligation
- steel wire
- cabling
- laying
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/085—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using portable tools
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- Installation Of Indoor Wiring (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of big cable of converter oxygen gun main motor on the way colligation laying method, and the steel wire rope on hoist engine is laid to the main electric panel room of converter along cable run, and about 100 meters of steel wire rope under disk at the main electric panel room of converter；By cable carrying roller every about 5 meters of colligations on cable testing bridge；The cable drum rack for treating cabling is located near the main electric panel room of converter with cable unreeling rack；Cabling end is treated using wire sets colligation, steel wire penetrating wire sets and firm with its colligation arrange steel wire rope to cable testing bridge carrying roller along cable run；Start hoist engine, with iron wire every about 2 meters by steel wire rope colligation on cabling is treated, cable laying is carried out in this approach, until cable laying is to oxygen rifle platform.The method of the invention is safe and reliable, can solve the problem that the big cable of oxygen rifle main motor causes the excessive hidden danger for causing steel wire rope to come off of tractive force in laid processes at a colligation one, is greatly enhanced the security of personnel and cable laying.
Description
Technical field
The invention belongs to metallurgical mounting technique field, and in particular to a kind of big cable of converter oxygen gun main motor colligation on the way is applied
Equipment, method.
Background technology
The converter oxygen gun main motor of steel mill is normally on tens meters high of oxygen rifle platform, the frequency conversion of oxygen rifle main motor power supply
Big cable need to be laid to oxygen rifle platform from the main electric panel room of converter along cable run, and the main electric panel room of converter be generally located on ±
0m, cable whole process are laid in cable testing bridge, and the big cable length of oxygen rifle main motor power supply typically there are about nearly hundred meters.By the main electricity of converter
Air chamber to oxygen rifle platform is generally fitted with the laying that vertical section cable testing bridge is used for the big cable of oxygen rifle main motor power supply, vertical section electricity
Cable crane span structure height fall also generally all has tens meters.The big cable of current domestic generally use elevator machine travel oxygen rifle main motor power supply
End carry out the laying of oxygen rifle main motor frequency conversion big cable vertical section, cable first place of a banded cable in distraction procedure,
Because height fall is larger, all tractive force are concentrated at end steel wire rope colligation, especially when the big cable of frequency conversion was being drawn
Cheng Zhong, steel wire rope stress at banded cable head is very big, easily causes tractive force is excessive to cause steel wire rope to come off, the big cable of frequency conversion
From high falling, great potential safety hazard be present, how to put down the safe and efficient laying of the big cable of oxygen rifle main motor frequency conversion to oxygen rifle
Platform is the big technical barrier of one faced.
The content of the invention
The purpose of the present invention is to propose to a kind of big cable of converter oxygen gun main motor, colligation laying method, this method can on the way
Solve the big cable of oxygen rifle main motor causes the excessive hidden danger for causing steel wire rope to come off of tractive force in laid processes at a colligation one,
It is greatly enhanced the security of personnel and cable laying.
To achieve the above object, the present invention provides following technical scheme：
A kind of big cable of converter oxygen gun main motor of present invention colligation laying method on the way, by cable from converter main motor room edge
Cable run, which is laid to oxygen rifle main motor platform, the cable run, includes the cable testing bridge of vertical section, and its feature exists
In this method comprises the following steps：
Step 1: instrument and equipment prepare：
Prepare general instrument and equipment：One, hoist engine, the hoist engine are adjustable speed hoist engine, and band on the hoist engine
Some steel wire ropes are 200 meters；Wire sets one；Some of iron wire；The straight carrying roller of cable several；Cable corner roller several；
Screwdriver several；Intercom several；Some of binding strap；Some of safety belt；
Step 2: preparation before cable laying：
A, rope traction：Hoist engine is fixedly secured the main motor neighbouring position on oxygen rifle main motor platform, will be rolled up
The steel wire rope raised on machine is laid to the main electric panel room of converter along oxygen rifle main motor platform through cable testing bridge, and in the main electric panel room of converter
Locate about 100 meters of steel wire rope under disk；
B, cable carrying roller colligation：By the straight carrying roller of cable every about 5 meters of colligations cable run vertical section cable bridge
On frame, corner uses cable corner roller, and it is firm that the straight carrying roller of cable and cable corner roller are both needed to colligation；
C, treat that cabling plate rail is set：The cable drum rack that disk is needed to cabling with cable unreeling rack is located at the main electricity of converter
Near air chamber；
D, wire sets colligation：Entangled using wire sets treat cabling end and colligation it is firm, by the main electricity of converter
Steel wire rope at air chamber under disk passes through about 100 meters from the end of wire sets, then by wire sets, steel wire at wire sets
Restricting and treat cabling, colligation is firm together；
E, steel wire rope arranges：Along treating that the cable that the laying path of cabling arranges steel wire rope to cable testing bridge directly holds in the palm
On roller and cable corner roller, crawl hoist engine checks whether steel wire rope scrapes in the laying path for treat cabling；
F, prepare 50 iron wires, every doubling, carry out treat cabling laying before preparation；
Step 3: cable laying：
A, hoist engine is started, by steel wire rope gait of march control on hoist engine in 0.2m/s~0.3m/s；Work as rope belt
It is dynamic when cabling advance about 10 meters or so when, stop hoist engine, laying electricity treated into steel wire rope colligation every about 2 meters with iron wire
Continue to start hoist engine on cable, after colligation, circulation in this approach treat the laying of cabling, until treating cabling
Lay to oxygen rifle platform；
B, to prevent from treating that cabling slides, after laying, with binding strap cabling colligation will be treated in cable first
On crane span structure, treat that colligation removes iron wire and steel wire rope after arranging, the both ends for treating cabling are arranged in place, laying terminates.
Further, the hoist engine is 3T adjustable speed hoist engines.
Further, a diameter of 14mm of the steel wire rope.
Further, the iron wire is 12# iron wires, and the length of every is 500mm.
Compared with prior art, this method can solve the problem that the colligation one in laid processes of the big cable of oxygen rifle main motor frequency conversion
Place causes the excessive hidden danger for causing steel wire rope to come off of tractive force, is greatly enhanced the security of personnel and cable laying.
Brief description of the drawings
Fig. 1 is schematic diagram when steel wire rope is laid in the method for the invention implementation process；
Fig. 2 is steel wire rope, iron wire net and signal when cabling colligation in the method for the invention implementation process
Figure；
Fig. 3 is schematic diagram when cabling is laid in the method for the invention implementation process；
In figure：1：Hoist engine；2：Steel wire rope；3：The main electric panel room of converter；4：The straight carrying roller of cable；5：Cable corner roller；6：Electricity
Cable crane span structure；7：Treat cabling；8：Wire sets；9：Iron wire；10：Oxygen rifle main motor platform.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Unless otherwise defined, technical term or scientific terminology used herein should be in disclosure art and had
The ordinary meaning that the personage of general technical ability is understood.Used in disclosure patent application specification and claims
" on ", " under ", "left", "right" etc. are only used for representing relative position relation, after the absolute position for being described object changes, then should
Relative position relation also correspondingly changes.
As shown in Figure 1 to Figure 3, a kind of big cable of converter oxygen gun main motor of present invention colligation laying method on the way, will wait to apply
If cable 7 is laid to oxygen rifle main motor platform 10 from converter main motor room 3 along cable run, the cable run includes
The cable testing bridge 6 of vertical section, it is comprised the following steps that：
Step 1: instrument and equipment prepare：
Prepare general instrument and equipment：1 one, hoist engine, the hoist engine 1 are the adjustable speed hoist engine of 3T tractive force, and
A diameter of 14mm steel wire rope 2 is carried on the hoist engine 1, the length of steel wire rope 2 is 200 meters；Wire sets 8 one；12# iron wires
9 some, the length of every iron wire 9 is 500mm；The straight carrying roller 4 of cable several；Cable corner roller 5 several；Screwdriver is some
It is individual；Intercom several；Some of binding strap；Some of safety belt；
Step 2: preparation before cable laying：
A, rope traction：Hoist engine 1 is fixed on the main motor neighbouring position on oxygen rifle main motor platform 10, hoist engine
1 needs fixation, and the steel wire rope 2 on hoist engine 1 is laid to the main electricity of converter along oxygen rifle main motor platform 10 through cable testing bridge 6
Air chamber 3, and about 100 meters of the steel wire rope 2 under disk at the main electric panel room 3 of converter；
B, cable carrying roller colligation：The straight carrying roller 4 of cable is being laid into the cable testing bridge 6 of path orthogonal section every about 5 meters of colligations
On, corner uses cable corner roller 5, and it is firm that the straight carrying roller 4 of cable and cable corner roller 5 are both needed to colligation；
C, treat that cabling plate rail is set：The cable drum rack that disk is needed to cabling 7 with cable unreeling rack is located at converter master
Near electric panel room 3；
D, wire sets colligation：Entangled using wire sets 8 treat the end of cabling 7 and colligation it is firm, by converter master
Steel wire rope 2 at electric panel room 3 under disk passes through about 100 meters from the end of wire sets 8, then by steel wire at wire sets 8
Set 8, steel wire rope 2 and treat cabling 7 colligation is firm together；
E, steel wire rope arranges：Steel wire rope 2 is arranged to the cable of cable testing bridge 6 along the laying path for treating cabling 7
On straight carrying roller 4 and cable corner roller 5, crawl hoist engine 1 checks whether steel wire rope 2 is scraped in the laying path for treat cabling 7
Wipe；
F, prepare 50 iron wires 9, every doubling, carry out and treat that cabling 7 lays preceding preparation；
Step 3: cable laying：
A, hoist engine 1 is started, by the gait of march of steel wire rope 2 control on hoist engine 1 in 0.2m/s~0.3m/s；Work as steel wire rope
2 drive when cabling 7 advance about 10 meters or so when, stop hoist engine 1, the colligation of steel wire rope 2 is existed every about 2 meters with iron wire 9
Treat on cabling 7, continue to start hoist engine 1 after colligation, circulation in this approach treat the laying of cabling 7, directly
To treating that cabling 7 laid to oxygen rifle platform 10；
B, to prevent from treating that cabling 7 slides, after laying, with binding strap the colligation of cabling 7 will be treated in electricity first
On cable crane span structure 6, treat that colligation removes iron wire 9 and steel wire rope 2 after arranging, the both ends for treating cabling 7 are arranged in place, laying
Terminate.
In the present embodiment, 200 meters long of steel wire rope 2 can effectively meet the needs for treating that cabling 7 is laid；Length is
500mm 12# iron wires, can be with doubling, and when cabling 7 is laid, this very easily is treated into cabling 7 and steel wire rope
2 carry out colligation；Tractive force is that 3T adjustable speed hoist engine 1 can be very good to meet the needs drawn when cabling 7 is laid；
When cabling 7 is laid, the gait of march of steel wire rope 2 on hoist engine 1 is controlled in 0.2m/s~0.3m/s, effectively avoided
Excessive velocities cause to treat that stress is excessive at the end of cabling 7；By steel wire rope 2 about 100 under disk at the main electric panel room 3 of converter
Rice, it can substantially meet the length needs for treating that cabling 7 is laid.
It can solve the problem that the big cable of oxygen rifle main motor frequency conversion causes to draw in laid processes at a colligation one by this method
The excessive security for causing the hidden danger that steel wire rope comes off, being greatly enhanced personnel and cable laying of power.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (4)
1. a kind of big cable of converter oxygen gun main motor colligation laying method on the way, by cable from converter main motor room (3) along cable
Laying path, which is laid to oxygen rifle main motor platform (10), the cable run, includes the cable testing bridge (6) of vertical section, its feature
It is, this method comprises the following steps：
Step 1: instrument and equipment prepare：
Prepare general instrument and equipment：(1) one, hoist engine, the hoist engine (1) are adjustable speed hoist engine, and the hoist engine
(1) 200 meters of steel wire rope (2) is carried on；Wire sets (8) one；Some of iron wire (9)；The straight carrying roller of cable (4) several；
Cable corner roller (5) several；Screwdriver several；Intercom several；Some of binding strap；Some of safety belt；
Step 2: preparation before cable laying：
A, rope traction：Hoist engine (1) is fixedly secured the main motor neighbouring position on oxygen rifle main motor platform (10), then
Steel wire rope (2) on hoist engine (1) is laid to the main electric panel room of converter along oxygen rifle main motor platform (10) through cable testing bridge (6)
(3) about 100 meters of the steel wire rope (2), and under the main electric panel room of converter (3) place disk；
B, cable carrying roller colligation：By the straight carrying roller of cable (4) every about 5 meters of colligations cable run vertical section cable testing bridge
(6) on, corner uses cable corner roller (5), and it is firm that the straight carrying roller of cable (4) and cable corner roller (5) are both needed to colligation；
C, treat that cabling plate rail is set：The cable drum rack that disk is needed to cabling (7) with cable unreeling rack is located at the main electricity of converter
Near air chamber (3)；
D, wire sets colligation：Entangled using wire sets (8) treat cabling (7) end and colligation it is firm, by converter
Steel wire rope (2) under main electric panel room (3) place disk passes through about 100 meters from the end of wire sets (8), then in wire sets (8)
Place is by wire sets (8), steel wire rope (2) and treats cabling (7) colligation is firm together；
E, steel wire rope arranges：Steel wire rope (2) is arranged to the electricity of cable testing bridge (6) along the laying path for treating cabling (7)
On the straight carrying roller of cable (4) and cable corner roller (5), crawl hoist engine (1), check that steel wire rope (2) is treating the laying of cabling (7)
Whether scraped in path；
F, prepare 50 iron wires (9), every doubling, carry out treat cabling (7) laying before preparation；
Step 3: cable laying：
A, hoist engine (1) is started, by steel wire rope (2) gait of march control on hoist engine (1) in 0.2m/s~0.3m/s；Work as steel wire
Restrict (2) drive when cabling (7) advance about 10 meters or so when, stop hoist engine (1), with iron wire (9) every about 2 meters by steel wire
(2) colligation restrict on cabling (7) is treated, continues to start hoist engine (1) after colligation, circulation in this approach carries out waiting to lay
The laying of cable (7), until treating cabling (7) laying to oxygen rifle platform (10)；
B, to prevent from treating that cabling (7) slides, after laying, with binding strap cabling (7) colligation will be treated in electricity first
On cable crane span structure (6), treat that colligation removes iron wire (9) and steel wire rope (2) after arranging, the both ends for treating cabling (7) are arranged
In place, laying terminates.
A kind of 2. big cable of converter oxygen gun main motor according to claim 1 colligation laying method on the way, it is characterised in that：
The hoist engine (1) is 3T adjustable speed hoist engines.
A kind of 3. big cable of converter oxygen gun main motor according to claim 1 colligation laying method on the way, it is characterised in that：
A diameter of 14mm of the steel wire rope (2).
A kind of 4. big cable of converter oxygen gun main motor according to claim 1 colligation laying method on the way, it is characterised in that：
The iron wire (9) is the 12# iron wires that length is 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739677.0A CN107359550B (en) | 2017-08-25 | 2017-08-25 | A kind of big cable of converter oxygen gun main motor binds laying method on the way |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739677.0A CN107359550B (en) | 2017-08-25 | 2017-08-25 | A kind of big cable of converter oxygen gun main motor binds laying method on the way |
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| CN107359550A true CN107359550A (en) | 2017-11-17 |
| CN107359550B CN107359550B (en) | 2019-10-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242780A (en) * | 2017-12-15 | 2018-07-03 | 中色十二冶金建设有限公司 | A kind of device and its laying method for being suitble to different occasion cable layings |
| CN109179217A (en) * | 2018-10-23 | 2019-01-11 | 筑梦高科建筑有限公司 | Super High vertical high voltage cable laying construction technology |
| CN109378767A (en) * | 2018-10-24 | 2019-02-22 | 陕西建工第建设集团有限公司 | A kind of lifting engineering method of hoist engine to skyscraper electricity well inner cable |
| CN111711131A (en) * | 2020-03-13 | 2020-09-25 | 五冶集团上海有限公司 | Cable guiding device in bridge and cable laying method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144981A (en) * | 1995-08-30 | 1997-03-12 | 飞燕电工股份有限公司 | Spiral hanger for cable and method of instaling cable using the same |
| CN203466504U (en) * | 2013-08-06 | 2014-03-05 | 江阴市新天金属制品有限公司 | Cable trawl |
| CN104167694A (en) * | 2014-08-12 | 2014-11-26 | 铜陵有色金属集团铜冠矿山建设股份有限公司 | Method for laying cable with hemp ropes in vertical shaft of mine |
| CN106099768A (en) * | 2016-08-16 | 2016-11-09 | 白银有色集团股份有限公司 | Outdoor complicated piping lane cable laying of bridge frame method |
| CN106356770A (en) * | 2016-10-08 | 2017-01-25 | 国网山东省电力公司商河县供电公司 | Cable release and obstacle crossing construction device |
-
2017
- 2017-08-25 CN CN201710739677.0A patent/CN107359550B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144981A (en) * | 1995-08-30 | 1997-03-12 | 飞燕电工股份有限公司 | Spiral hanger for cable and method of instaling cable using the same |
| CN203466504U (en) * | 2013-08-06 | 2014-03-05 | 江阴市新天金属制品有限公司 | Cable trawl |
| CN104167694A (en) * | 2014-08-12 | 2014-11-26 | 铜陵有色金属集团铜冠矿山建设股份有限公司 | Method for laying cable with hemp ropes in vertical shaft of mine |
| CN106099768A (en) * | 2016-08-16 | 2016-11-09 | 白银有色集团股份有限公司 | Outdoor complicated piping lane cable laying of bridge frame method |
| CN106356770A (en) * | 2016-10-08 | 2017-01-25 | 国网山东省电力公司商河县供电公司 | Cable release and obstacle crossing construction device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242780A (en) * | 2017-12-15 | 2018-07-03 | 中色十二冶金建设有限公司 | A kind of device and its laying method for being suitble to different occasion cable layings |
| CN108242780B (en) * | 2017-12-15 | 2020-11-06 | 中色十二冶金建设有限公司 | Device suitable for laying cables in different occasions and laying method thereof |
| CN109179217A (en) * | 2018-10-23 | 2019-01-11 | 筑梦高科建筑有限公司 | Super High vertical high voltage cable laying construction technology |
| CN109179217B (en) * | 2018-10-23 | 2020-04-07 | 广东博智林机器人有限公司 | Super high-rise vertical high-voltage cable laying construction process |
| CN109378767A (en) * | 2018-10-24 | 2019-02-22 | 陕西建工第建设集团有限公司 | A kind of lifting engineering method of hoist engine to skyscraper electricity well inner cable |
| CN111711131A (en) * | 2020-03-13 | 2020-09-25 | 五冶集团上海有限公司 | Cable guiding device in bridge and cable laying method |
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| CN107359550B (en) | 2019-10-08 |
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