CN103606863A - Anti-intertwisting installation method of putting shaft cable downward through two winches - Google Patents
Anti-intertwisting installation method of putting shaft cable downward through two winches Download PDFInfo
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- CN103606863A CN103606863A CN201310463673.6A CN201310463673A CN103606863A CN 103606863 A CN103606863 A CN 103606863A CN 201310463673 A CN201310463673 A CN 201310463673A CN 103606863 A CN103606863 A CN 103606863A
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Abstract
In vertical shaft equipment of coal mines and non-coal mines, when a winch (1) is used for putting a cable downward, a wire rope (4) of the winch and the cable (9) are liable to intertwist with each other, and a great technical difficulty is brought to the construction of the cable (9). The scheme provides an anti-intertwisting installation method of putting the shaft cable (9) downward through two winches (1, 2). When the cable (9) and the wire rope (4) intertwist with each other, a wire rope (5) of the other winch (2) is connected to an appropriate position under the position where the cable (9) and the wire rope (4) intertwist with each other, and is tightly connected with the wire rope (4) for putting the cable (9) downward, and replaces the original wire rope (4) which puts the cable (9) downward to bear the force. After the wire rope (5) is confirmed to bear the force, the original wire rope (4) which puts the cable (9) downward is gradually loosened, and the wire rope (4) and the cable (9) are naturally separated. The cycle repeats until the installation of the cable (9) is finished.
Description
One, technical field:
In the shaft of vertical well equipment of colliery and non-coal mine, the various technique cables such as the power cable of connection ground and down-hole, communication cable are all (the seeing Fig. 1) on the cable tray being fixed in shaft of vertical well.
Two, background technology:
Unit in charge of construction, when shaft cable is installed, particularly during major diameter power cable, mostly adopts stable car to transfer, even tiny communication cable, as long as the position being arranged in beam shelves mouthful also can only utilize stable car to transfer, main method step is as follows:
1, at stable car of ground configuration, and take root firmly, stable car direction is aimed at lower rope point direction (seeing Fig. 2).
The cable hank of 2, wait being transferred is arranged in well head appropriate location, and at wellhead cable, transfers the empty rope of location arrangements major diameter and roll, and allows cable roll on vertically and to transfer from sky rope.The effect that empty rope rolls is that carrying cable reaches a certain height and is convenient to well head workmen and pricks the little bundle rope made of hemp, card temporary cable card.Another effect that empty rope rolls is the bending radius (seeing well head photo) that meets cable.
3, personnel well head by cable and steel wire rope every four meters with the little bundle of linen thread one, every 40 meters with temporary cable card one kilocalorie, steel wire rope and cable synchronizing are transferred the specified design position, shaft bottom of advancing side by side.
4, on the hanging scaffold of workmen in pit shaft, from upper well head, successively little jag and temporary cable card are removed, cable and steel wire rope are separated, according to the design attitude of permanent cable in pit shaft, cable is fixed on permanent cable tray, cable is snapped into shaft bottom always, complete whole cable fixation procedure.
5, start stable car, reclaim steel wire rope, prepare next root cable construction, until engineering finishes.
This construction technique, the following technical barrier of main existence:
(1), due to mine shaft depth and the larger reason of major diameter power cable deadweight, even if stable car adopts non-rotating cable, in lower payout process, still there is rotation in steel wire rope, and produces and mutually twist strength with cable.
(2) there is sheathed structure power cable inside, is equivalent to helical spring, under cable Gravitative Loads, still produces turning effort, and produces and mutually twist strength with steel wire rope.
(3) when steel wire rope and cable are being transferred in process, due to steel wire rope and cable interaction weave in, produce a stubborn strength phenomenon, different with cable rigidity according to steel wire rope, diameter is different, steel wire rope also can be entangled on cable, and cable also may be entangled on steel wire rope.
(4) well depth is 1000 meters, if there is this stubborn strength at 500 meters of.So, this stubborn strength just, up to the process along with card cable, will be thrown out downwards always, runs to shaft bottom, until steel wire rope thoroughly separates with cable.
(5) operating personnel are when processing this stubborn strength; all to adopt the most original method; directly with crowbar, insert and twist strength place; strength is twisted in opposite spin; by force steel wire rope and cable are separated, cable could be fixed on permanent cable tray, this stupid method is time-consuming; be absolutely unsafe, and damaged the protective layer of permanent cable.
(6) particularly when large, the stubborn strength of stubborn strength is more, operating personnel can not find better way in down-hole, for a stubborn strength, a class does not process for several days yet, finally adopt and cut little bundle on a large scale, with chain block, tear cable and steel wire rope by force, stupid stupid again of its method is extremely dangerous.
Three, summary of the invention:
According to construction experience and field observation for many years, we solve the strength problem of mutually twisting of steel wire rope and cable by the following technical solutions, and specific practice is as follows:
(1) select the stable car of two same model, be arranged in well head, and configure the non-rotating cable (seeing Fig. 5) of two same model.
The lower rope point of (2) two stable cars is all selected on the limit of permanent cable position, according to standby each other principle setting (seeing Fig. 5), and according to background technology mode, cable is transferred to shaft bottom by stable car first.
(3) when stable car first and cable are twisted strength in pit shaft, allow the steel wire rope head of stable car second surpass the position of twisting 20 meters of left and right, below, strength place, the steel wire rope of the steel wire rope head of stable car second and stable car first is connected and stressed with U-shaped clamping is close, and bonding strength should meet the requirement (seeing Fig. 6) of construction safety coefficient.
(4) start stable car second, make steel wire rope 5 stressed, and bear the total weight (being fixed on except the cable weight on cable tray) of cable and steel wire rope.
(5) start stable car first, make steel wire rope looseness.Now, stable car first rope and cable are being not rigid stubborn strength, but cable is naturally vertical, and operating personnel have possessed toward the condition of blocking cable on permanent cable tray.
(6) when construction cannot block cable to next stubborn strength position, start stable car first steel wire rope 4 stressed, allow stable car second steel wire rope 5 and stable car first steel wire rope 4 throw off, hanging scaffold decline 20M left and right, the next strength of twisting is processed in preparation.
(7) so repeatedly circulation, allows stable car second steel wire rope head be in all the time the below of twisting strength position, prepares at any time assist process and twists strength use.
(8) illustrate: stable car second steel wire rope head, in twisting 20 meters of left and right of end opening, strength position, is twisted strength situation by those skilled in the art according to scene completely, constructing actual and determine in cable size and intensity and job site, can not impose uniformity without examining individual cases.
Beneficial effect:
1, solve steel wire rope and cable and twisted mutually the technical barrier of strength.
2, solve operating personnel and adopted the broken stupid method of twisting strength of crowbar, safe and reliable.
3, solve broken twisting in strength process, effectively protected the problem of cable covering.
4, accelerating construction progress.
Four, accompanying drawing explanation:
Fig. 1: common mine shaft equipment floor plan, as seen from the figure, the position of power cable bracket, communication signal cable tray, different according to each designing institute's design concept, 4 meters, 5 meters, 6 meters, interval is that one deck is different, this bracket is arranged into shaft bottom from well head always, with cable louding, is arranged into design terminal.
Fig. 2: under background technology state, rope point floor plan under a stable car construction cable.
Fig. 3: installing cables elevational schematic view while not twisting strength under perfect condition, A-B section is installing cables, B-C is cable to be installed.
Fig. 4: twist installing cables elevational schematic view under strength state, AB section is for installing, and BC section is to be installed.
Fig. 5: two stable cars are transferred the broken strength installation method floor map of twisting of shaft cable.
Fig. 6: two stable cars are transferred the broken strength installation method elevational schematic view of twisting of shaft cable.
In figure, number: 1, stable car first 2, stable car second 3, permanent cable tray 4, stable car first steel wire rope 5, stable car second steel wire rope 6, the interim little bundle 7 of linen thread, temporary cable card (kilocalorie) 8, connect U-shaped card 9, permanent cable temporarily
Five, embodiment:
1, will be according to mine shaft depth, cable unit's rice weight, chooses two stable cars (1,2) that meet construction, requires two stable cars to have identical specification performance (seeing Fig. 5).
2, select the non-rotating cable 4,5 of two same model, and make length, the intensity of steel wire rope 4,5 meet construction requirement (seeing Fig. 6).
3,, according to the design attitude of permanent cable 9, arrange two head sheaves and lower rope point 4,5, and head sheave and head sheave beam are carried out to strength check (seeing Fig. 5).
4, start stable car first steel wire rope 4 and transfer with cable 9 simultaneously, and according to the construction requirement of lower payout 9, every 4 meters with the little bundle of linen thread 6, every 40 meters with temporary cable card 7 card jails.
5, workmen goes into the well with tank, and follow nurse cable end to transfer, cable 9 is transferred to shaft bottom design attitude always, the object of nurse cable end is to prevent that 9, cable is in decentralization process, scurry in other beam shelves, or cable 9 has and touches the phenomenon of scraping with Jing Liang (same background technology) occurs in decentralization process.
6, play hanging scaffold to upper well head.In playing dish process, workmen can be made progress by down-hole, observes in detail the stubborn strength situation of whole cable 9, and accomplishes to know what's what.Mainly see and where twist strength, one total how many stubborn strength.Hanging scaffold, after well head, starts from the top down by the cable on steel wire rope 49 separately, snaps on permanent cable tray 3,
7, workmen, from well head, snaps into cable on permanent electric cable bracket 3 from top to bottom.Meanwhile, start stable car second 2 and steel wire rope 5 and transfer, fag end 5 is followed workmen's operation all the time, finds that there is while twisting strength the preparation of dealing with.
8,, when stable car first 1 and steel wire rope 4 twisted strength with cable 9, pine under 5, stable car second steel wire rope, to the position of twisting 20 meters of left and right, below, strength place, with more than 7 pairs U-shaped cards 8, is closely connected 5, stable car second steel wire rope with first steel wire rope 4, and carries out safety factor proof.
9, start and in stable car second 2, to carry stressedly, after confirming that stable car second 2 is stressed, slowly by the loose car of stable car first 1, like this, the steel wire rope 4 being attached in stable car first 1 just relaxes naturally, naturally unclamps with the stubborn strength of power cable 9.
10, workmen is risen 20 meters, hanging scaffold, and power cable 9 is fixed on permanent cable tray 3.
11, start stable car first and tighten up steel wire rope 4, and unclamp U-shaped card 8, take stable car second steel wire rope apart in stand-by.
12, so repeatedly circulation, until whole cable installs.
13, reclaim first steel wire rope second steel wire rope, prepare next root cable construction.
Specific embodiment: (take major diameter power cable as example)
1,, during practice of construction, before construction, write detailed Design of Construction Organization.
2, to meet according to Cable choosing to be installed stable car type selecting and the affiliated steel wire rope type selecting of lowering function.
When 3, personnel fix cable on hanging scaffold, 5, the affiliated steel wire rope of stable car second 2 will be temporarily fixed on hanging scaffold with nylon rope, prevents that steel wire rope head 5 from leaving operating personnel's sight line, kinks cable 9 or above steel wire rope 4, new winding occurs.
4, clear and definite in the time of will confiding a technological secret to operating personnel: to twist unclamping of strength, refer to that steel wire rope 4 to the stubborn sturdy pines between 5, steel wire rope opens, and facilitates cable to be installed on permanent cable tray.This stubborn strength exists all the time in construction, and the form of just twisting strength becomes loose type.Because the strength method of twisting is taken over brokenly in circulation, this stubborn strength position is always to bottom operation, until shaft bottom construction finishes.
While 5, reclaiming steel wire rope, there is operating personnel's tour head of steel wire rope of going into the well, prevent from occurring to kink mutually between two steel wire ropes twisting strength and cannot reclaiming.
Claims (1)
1. one kind relates to coal mine shaft lining and utilizes stable car to transfer the method for installing cables (9), particularly adopt two stable cars (1, 2) transfer the broken strength installation method of twisting of shaft cable (9), it is characterized in that: when cable (9) and steel wire rope (4) are twisted strength mutually, in the time of cable (9) cannot being arranged on pit shaft inner cable bracket (3), with another stable car (2) and steel wire rope (5), below position, mutually stubborn strength place, be connected also stressed with steel wire rope (4), and make the steel wire rope (4) of lower payout (9) lax, steel wire rope (4) unclamps stubborn strength naturally with cable (9), reach smooth installation shaft cable (9) object.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310463673.6A CN103606863B (en) | 2013-09-25 | 2013-09-25 | The broken stubborn strength installation method of pit shaft cable transferred by two stable cars |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310463673.6A CN103606863B (en) | 2013-09-25 | 2013-09-25 | The broken stubborn strength installation method of pit shaft cable transferred by two stable cars |
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| Publication Number | Publication Date |
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| CN103606863A true CN103606863A (en) | 2014-02-26 |
| CN103606863B CN103606863B (en) | 2016-06-01 |
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| CN201310463673.6A Active CN103606863B (en) | 2013-09-25 | 2013-09-25 | The broken stubborn strength installation method of pit shaft cable transferred by two stable cars |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521098A (en) * | 2018-05-10 | 2018-09-11 | 中煤第三建设集团机电安装工程有限责任公司 | A kind of vertical large-diameter cable removes device and its construction method simultaneously |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205049A (en) * | 2007-11-26 | 2008-06-25 | 中煤第三建设公司机电安装工程处 | Mine using great steel derrick lifting special tool |
| CN101478124A (en) * | 2009-02-18 | 2009-07-08 | 中建八局第一建设有限公司 | Automatic laying method for electric cable and apparatus thereof |
-
2013
- 2013-09-25 CN CN201310463673.6A patent/CN103606863B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205049A (en) * | 2007-11-26 | 2008-06-25 | 中煤第三建设公司机电安装工程处 | Mine using great steel derrick lifting special tool |
| CN101478124A (en) * | 2009-02-18 | 2009-07-08 | 中建八局第一建设有限公司 | Automatic laying method for electric cable and apparatus thereof |
Non-Patent Citations (3)
| Title |
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| 孟杰等: "《立井井筒施放、敷设电缆的实践》", 《煤炭科技》 * |
| 柳小飞等: "《顾桥矿南区进风井放绳挂罐施工安全技术研究》", 《中小企业管理与科技》 * |
| 靳颖泽等: "《利用稳车回撤及敷设立井高压电缆的实践》", 《煤矿现代化》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521098A (en) * | 2018-05-10 | 2018-09-11 | 中煤第三建设集团机电安装工程有限责任公司 | A kind of vertical large-diameter cable removes device and its construction method simultaneously |
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| Publication number | Publication date |
|---|---|
| CN103606863B (en) | 2016-06-01 |
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