CN111792500B - Method for replacing tail rope of floor type friction hoist - Google Patents
Method for replacing tail rope of floor type friction hoist Download PDFInfo
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- CN111792500B CN111792500B CN202010730720.9A CN202010730720A CN111792500B CN 111792500 B CN111792500 B CN 111792500B CN 202010730720 A CN202010730720 A CN 202010730720A CN 111792500 B CN111792500 B CN 111792500B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/02—Installing or exchanging ropes or cables
Abstract
The invention relates to a method for replacing a tail rope of a floor type friction hoist, which comprises the steps of preparation work, sectional recovery of an old tail rope, lowering of a new tail rope and the like, wherein the lowering of the new tail rope and the recovery of the old tail rope are carried out at a-720 wellhead and a-744 loading station, the lowering distance in the lowering process of the new rope is short, the weight is light, facilities such as a cage guide in a shaft are not scratched, the lowering of the new rope can be completed only by matching a pulley and a winch, the operation is simple, equipment from-720 to the bottom of the shaft is less, the danger coefficient is low, sectional cutting and disassembly are carried out in the disassembling process of the old tail rope, the recovery is convenient, the overhauling time is greatly reduced, the potential safety hazard is reduced, and the working efficiency is improved.
Description
Technical Field
The invention relates to a method for replacing a tail rope of a floor type friction hoist, and belongs to the field of mining machinery.
Background
The existing method for replacing the tail rope of the floor type friction hoist comprises the steps of lifting the head and the tail of an old tail rope to positions corresponding to a well mouth and a well bottom, then lowering a new rope at the well mouth through equipment such as a guide chain and a stabilizing car, cutting off the head and the tail of the tail rope, and replacing the tail rope, wherein the method has the following defects: the new rope is long and hangs from a well head to a well bottom in a shaft, equipment in the shaft is easy to scratch in the process of changing the rope, and the danger coefficient is high; secondly, the old tail rope is cut off in a whole root, so that the weight is large and the recovery is difficult; third, change the in-process and need use more main equipment to promote and transfer, complex operation, and transfer the new rope, retrieve processes such as old rope consuming time longer, overhaul work efficiency is low.
Disclosure of Invention
The invention provides a method for replacing a tail rope of a floor type friction hoist, which greatly shortens the overhaul time, reduces the potential safety hazard and improves the working efficiency.
In order to solve the technical problems, the invention provides the following technical scheme:
a method for replacing a tail rope of a floor type friction hoist is characterized by comprising the following steps:
first, preparation work
S1, installing a direction-changing pulley on a channel steel at the side of a cage at the well mouth of-720 m, and installing a 3t winch at the well mouth of-720 m; a direction-changing pulley is arranged on a skip side channel steel of a-744 m loading station, and a 1t winch is arranged at the-744 m loading station;
s2, placing a new tail rope to be replaced at a wellhead at-720 m by a tail rope rack trolley, fixing the tail rope rack trolley, manufacturing a new rope head in advance and assembling a rotator;
arranging maintainers to go down to a-782 m well bottom at the well mouth of S3-720 m for observing the state of an old rope in the process of changing the rope and timely processing an old tail rope accumulated at the well bottom;
second, tail rope replacement
S1, parking the cage at a position of-110 m, wherein the skip is positioned above a loading station of-744 m, arranging a maintainer to descend to the tail rope isolating device at the loading station of-744 m, cutting off the first old tail rope on the signal chamber side at a position close to the tail rope isolating device, and dropping the cut-off position to the bottom of a well of-782 m after the first old tail rope is cut off;
s2, slowly ascending the cage, slowly descending the skip until the tail end of the first old tail rope pulled by the cage side reaches a-720 m well mouth, pulling the tail end of the first old tail rope out of the shaft by a maintainer of the-720 m well mouth, slowly descending the cage, manually dragging the first old tail rope pulled by the cage to a-720 m straight lane by the skip, and cutting the old tail rope after dragging the old tail rope for 60 m;
s3, slowly descending the cage, slowly ascending the skip until the tail end of the first old tail rope pulled by the skip side reaches a-744 m loading station, pulling the tail end of the first old tail rope out of a shaft by a maintainer at the-744 m loading station, slowly ascending the cage, slowly descending the skip, manually dragging the first old tail rope pulled by the skip to a-744 m belt way straight lane until an old rotator at the lower part of the skip reaches a position 1.5m above the-744 loading station, cutting off the first old tail rope pulled by the skip at the connection position with the old rotator, and completely dismantling the first old tail rope segment pulled by the skip;
s4, the cage continues to slowly descend, the skip slowly ascends until the tail end of the first old tail rope pulled by the cage reaches a-720 m well mouth after being cut off, a-720 m well mouth maintainer manually drags the first old tail rope pulled by the cage to the water ditch side of the middle section of the-720 m well mouth, the old tail rope is cut off at the safety door side of the-720 m well mouth after dragging for 120m, the step is repeated until the cage stops at a position 1.5m above the-720 m well mouth, at the moment, the head end of the first old tail rope pulled by the cage reaches the-720 m well mouth, the maintainer at the-720 m well mouth cuts off the first old tail rope at the connection position of the old rotator at the lower part of the cage, and at the moment, the first old tail rope pulled by the cage side is completely removed;
s5, after the first old tail rope section dragged by the cage is completely removed, the rotator at the lower part of the cage is positioned at a well mouth of-720 m, the well mouth of-720 m on the side of the cage is sealed by a wood plate, the old rotator at the lower part of the cage is manually removed, and a new rotator is installed at the lower part of the cage after the old rotator is removed;
s6, passing the new rope head manufactured in advance through a bend pulley on the side of the cage, installing the rotator with the manufactured new rope head on the new rotator on the lower part of the cage, and detaching a wood plate for sealing the cage side and the 720m well mouth; slowly ascending the cage and slowly descending the skip until the old rotator at the lower part of the skip reaches a position 1.5m above a-744 m loading station, sealing a skip side well mouth of the-744 m loading station by using a wood plate, and manually disassembling the old rotator at the lower part of the skip; a steel wire rope pulled by a 1t winch at a loading station of-744 m passes through a bend pulley at the skip side, and is lowered to the bottom of a well of-782 m with a pair of belt rope plate cards;
s7, fixing an 8t pulley between two cage guide beams at four meters above a-720 m well head by using a rope fastener to pass through the two cage guide beams;
s8, detaching a fixed facility of a tail rope rack trolley at a position of a-720 m well mouth, manually pushing the tail rope rack trolley to move towards a 3t winch, moving a new tail rope to the ground of the-720 m well mouth from the tail rope rack trolley after the tail rope rack trolley moves to the position of the 3t winch, cutting off the new tail rope at a position of eighty-nine meters away from the position of the-720 m well mouth, manually dragging a rope head of the cut-off new tail rope to the-720 m well mouth by a 720m well mouth maintainer, penetrating the rope head into an 8-ton pulley, and manually matching the 3t winch to drive the new tail rope to the-782 m well mouth;
s9, after the new tail rope reaches a-782 m shaft bottom, a maintainer at the-782 m shaft bottom beats the rope-carrying plate on the new rope at the rope head, and fixes the new tail rope between the rope head and the rope-carrying plate on a steel wire rope pulled by a 1t winch at the side of the skip;
s10, pulling the other rope end of the new tail rope to pass through the tail rope isolation device to be lifted upwards by using a 1t winch at a-744 m loading station until the other rope end of the new tail rope reaches the-744 m loading station, then manufacturing a new rope end, installing a new rotator at the lower part of the skip, and installing the new rope end on the new rotator at the lower part of the skip; and after the new rope head at the skip side is installed, disassembling a wood plate for the skip side well mouth of the 744m loading station, and disassembling an 8t pulley installed at the cage side-720 m well mouth.
As a further improvement of the invention, a second tail rope is replaced according to the steps from S1 to S9 in tail rope replacement, and after all the tail ropes are replaced, facilities such as a 3t winch, a bend pulley, a 1t winch and the like arranged on the cage side-720 wellhead are disassembled, and old tail ropes are tidied.
Compared with the prior art, the invention has the following beneficial effects:
1. the new tail rope is lowered and the old tail rope is recovered at a-720 wellhead and a-744 loading station, the lowering distance in the lowering process of the new rope is short, the weight is light, facilities such as a cage guide in a shaft are not scratched, the lowering of the new rope can be completed only by matching a pulley and a winch, the operation is simple, equipment between-720 in the shaft and the shaft bottom is few, the danger coefficient is low, the old tail rope is cut and disassembled in a segmented mode in the disassembling process, the recovery is convenient, the overhauling time is greatly shortened, the potential safety hazard is reduced, and the working efficiency is improved;
2. according to the invention, after the old tail rope is cut off at the tail rope isolating device, the cage pulls a longer section of the old tail rope, and the skip pulls a shorter section of the old tail rope, so that sectional recovery from the cut-off part of the old tail rope is facilitated during movement of the cage and the skip, the recovery efficiency of the old tail rope is improved, and the overhaul time is further shortened;
3. when a new tail rope is installed, the cage side can be directly installed at a-720 well head, the skip side pulls the steel wire rope through the winch to lift the new tail rope to a-744 loading station for installation, the recovery of the old tail rope and the replacement of the new tail rope in the whole overhauling process can be completed at the-720 well head and the-744 loading station, the operation is simple, the potential safety hazard caused by the bottom hole operation is reduced, and the working efficiency is further improved.
Drawings
Figure 1 is a schematic diagram of the overall configuration of a wellbore in an embodiment of the invention,
the system comprises 1 and 3t winches, 2 redirection pulleys, 3 and 1t winches, 4 tail rope isolating devices, 5 and 8t pulleys, 6 tail rope frame cars.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1, the present embodiment is a method for replacing a tail rope of a floor type friction hoist, including the following steps:
firstly, preparation work:
s1, fixing a rope buckle on channel steel about 50 centimeters below a railway on the side of a cage at the well mouth of-720 m, installing a direction-changing pulley 2 through the rope buckle, and then installing a 3t winch 1 at the well mouth of-720 m for standby. The same method is that a direction-changing pulley 2 is arranged on a channel steel at a loading station of-744 m on the skip side through a rope buckle, and a 1t winch 3 is arranged at the loading station of-744 m for standby.
And S2, placing a new tail rope to be replaced at the-720 wellhead in advance through the tail rope rack trolley 6, fixing the tail rope rack trolley 6, manufacturing a new rope head in advance and assembling the rotator.
And 2 maintainers are arranged at the well mouths of S3 and S720 m and are descended to the well bottom of a well-782, so that the old rope state can be observed in the rope changing process, and the old tail rope accumulated at the well bottom can be timely processed.
Second, tail rope replacement
S1, the cage is parked at a position of-110 m, the skip is located above a loading station of-744 m, the loading station of-744 m is arranged to allow a maintainer to carry oxygen and acetylene to the tail rope isolating device 4, the first old tail rope on the signal chamber side is cut at a position close to the tail rope isolating device 4, the cut-off position falls to the bottom of a well of-782 m after the first old tail rope is cut off (at the moment, the cage draws a longer section of the first old tail rope, and the skip draws a shorter section of the first old tail rope), and fire prevention and self safety are noticed when the old tail rope is cut off.
S2, slowly moving the cage up at a speed of 0.3 m/S, slowly moving the skip down until the tail end of the first old tail rope pulled by the cage side reaches a wellhead of-720 m, pulling the tail end of the first old tail rope out of the shaft by a maintainer of the wellhead of-720 m, slowly moving the cage down, slowly moving the skip up, manually dragging the first old tail rope pulled by the cage to a straight lane of-720 m, and cutting the old tail rope after dragging for about 60m (cutting the old tail rope of 60m in the process), wherein the tail end of the first old tail rope pulled by the skip side is located below a-744 loading station.
S3, slowly descending the cage at a speed of 0.3 m/S, slowly ascending the skip until the tail end of the first old tail rope pulled by the skip side reaches a loading station of-744 m, slowly ascending the cage by a maintainer at the loading station of-744 m, manually dragging the first old tail rope pulled by the skip to a straight lane of a belt way of-744 m until an old rotator at the lower part of the skip reaches a position suitable for disassembly 1.5m above the loading station of-744 m, cutting off the first old tail rope pulled by the skip at the connection position with the old rotator, and finishing the disassembly of the first old tail rope segment pulled by the skip.
S4, after the first old tail rope section dragged by the skip is completely removed, the cage is slowly moved down at the speed of 0.6 m/S, the skip is slowly moved up until the tail end of the first old tail rope section dragged by the cage reaches a well opening of-720 m, a maintainer of the well opening of-720 m manually drags the first old tail rope drawn by the cage to the water ditch side at the middle section of the well opening of-720 m, after dragging for 120m, the old tail rope is cut off at the safety door side of the well opening of-720 m, the step (segmented cutting) is repeated until the cage stops at a position 1.5m above the well opening of-720 m (the speed is reduced in advance when the well opening of-720 m is noticed), at the moment, the head end of the first old tail rope drawn by the cage reaches the well opening of-720 m, the first old tail rope is cut off at the connection position of the old rotator at the lower part of the cage at the safety door side of the well opening of-720 m, at the moment, the first old tail rope section pulled by the cage side is completely removed. So far, the whole first old tail rope is completely removed.
S5, after the first old tail rope pulled by the cage is completely removed, the rotator at the lower part of the cage is just positioned at a well mouth of-720 m, the well mouth of-720 m at the side of the cage is sealed by four wood boards with the thickness of 5 centimeters, and the old rotator connected with the first old tail rope at the side of the cage is manually removed.
And S6, passing the new tail rope through the bend pulley 2 at the side of the cage at the-720 m well mouth, installing the rotator with the manufactured rope head of the new tail rope at the lower part of the cage, and detaching the wood plate for sealing the-720 m well mouth at the side of the cage. After the wood plate for sealing the wellhead is removed, the cage is firstly slowed up at the speed of 0.3 m/s, then is increased to the speed of 0.5 m/s, and is continuously slowed up, and the skip is slowed down until an old rotator connected with the first old tail rope on the skip side reaches the removal position 1.5m above a-744 m loading station. Sealing a wellhead at the skip side of the-744 m loading station by four wood boards with the thickness of 5 centimeters, manually disassembling an old rotator connected with a first old tail rope at the skip side, then enabling a steel wire rope drawn by a 1t winch 3 at the-744 m loading station to pass through a bend pulley 2 at the skip side, and taking a pair of belt rope board cards to be lowered to the bottom of the-782 m shaft.
S7, a rope buckle with the circumference of eleven meters and 9.3 phi is wound between two cage guide beams at the position four meters above the-720 m well head and close to the cage guide to fix an 8t pulley 5.
S8, detaching the fixed facilities of the tail rope rack sub-vehicle 6 at the position of a-720 m well mouth, manually pushing the tail rope rack sub-vehicle 6 to move towards a 3t winch 1 installed at the position of the-720 m well mouth, moving a new tail rope from the tail rope rack sub-vehicle 6 to the ground of the-720 m well mouth after reaching the position of the 3t winch 1, cutting the new tail rope at the position of eighty-nine meters from the position of the-720 m well mouth by using a pneumatic cutting machine (the tail rope required between a skip bucket and a cage is 89m measured in advance), manually dragging the head of the cut new tail rope to the-720 m well mouth by 720m well mouth maintainer at the position of the 720m well mouth, penetrating the tail rope into an 8t pulley 5, driving the new tail rope to the-782 m well mouth, and cooperatively releasing the 3t winch 1 to ensure that the new tail rope is stably released.
And S9, when the new tail rope reaches the bottom hole of-782 m, the maintainer at the bottom hole of-782 m clamps the belt rope plate on the new rope by four sets of bolts at a position three meters away from the rope head, and the new tail rope between the rope head and the belt rope plate is tied on a steel wire rope drawn by the 1t winch 3 at the side of the skip by an iron wire.
And S10, pulling the other rope end of the new tail rope to pass through the tail rope isolation device 4 by using the 1t winch 3 of the-744 m loading station to lift upwards until the other rope end of the new tail rope reaches the-744 m loading station, then manufacturing a new rope end, installing a new rotator at the lower part of the skip, and installing the new rope end on the new rotator at the lower part of the skip. And after the new rope head at the skip side is installed, disassembling the wood plate for the skip side sealing well mouth, and disassembling the 8t pulley 5 installed at the-720 m well mouth at the cage side.
In the process, maintainers at a-720 m wellhead, a-782 m shaft bottom and a-744 m loading station need to pay attention to coordination and matching, and pay attention to the running track of the new tail rope to ensure that the new tail rope runs along the inner direction of the tail rope isolating device and is brought to the-744 m loading station.
And S9, replacing the second tail rope according to the steps from S1 to S9, disassembling facilities such as a redirection pulley 2 and a 3t winch 1 arranged at a cage side-720 wellhead and a redirection pulley 2 and a 1t winch 3 arranged at a skip side after all tail ropes are replaced, tidying the old tail rope, and cleaning tools used in the replacement process.
Claims (2)
1. A method for replacing a tail rope of a floor type friction hoist is characterized by comprising the following steps: the method comprises the following steps:
first, preparation work
S1, installing a direction-changing pulley on a channel steel at the side of a cage at the well mouth of-720 m, and installing a 3t winch at the well mouth of-720 m; a direction-changing pulley is arranged on a skip side channel steel of a-744 m loading station, and a 1t winch is arranged at the-744 m loading station;
s2, placing a new tail rope to be replaced at a wellhead at-720 m by a tail rope rack trolley, fixing the tail rope rack trolley, manufacturing a new rope head in advance and assembling a rotator;
arranging maintainers to go down to a-782 m well bottom at the well mouth of S3-720 m for observing the state of an old rope in the process of changing the rope and timely processing an old tail rope accumulated at the well bottom;
second, tail rope replacement
S1, parking the cage at a position of-110 m, wherein the skip is positioned above a loading station of-744 m, arranging a maintainer to descend to the tail rope isolating device at the loading station of-744 m, cutting off the first old tail rope on the signal chamber side at a position close to the tail rope isolating device, and dropping the cut-off position to the bottom of a well of-782 m after the first old tail rope is cut off;
s2, slowly ascending the cage, slowly descending the skip until the tail end of the first old tail rope pulled by the cage side reaches a-720 m well mouth, pulling the tail end of the first old tail rope out of the shaft by a maintainer of the-720 m well mouth, slowly descending the cage, manually dragging the first old tail rope pulled by the cage to a-720 m straight lane by the skip, and cutting the old tail rope after dragging the old tail rope for 60 m;
s3, slowly descending the cage, slowly ascending the skip until the tail end of the first old tail rope pulled by the skip side reaches a-744 m loading station, pulling the tail end of the first old tail rope out of a shaft by a maintainer at the-744 m loading station, slowly ascending the cage, slowly descending the skip, manually dragging the first old tail rope pulled by the skip to a-744 m belt way straight lane until an old rotator at the lower part of the skip reaches a position 1.5m above the-744 loading station, cutting off the first old tail rope pulled by the skip at the connection position with the old rotator, and completely dismantling the first old tail rope segment pulled by the skip;
s4, the cage continues to slowly descend, the skip slowly ascends until the tail end of the first old tail rope pulled by the cage reaches a-720 m well mouth after being cut off, a-720 m well mouth maintainer manually drags the first old tail rope pulled by the cage to the water ditch side of the middle section of the-720 m well mouth, the old tail rope is cut off at the safety door side of the-720 m well mouth after dragging for 120m, the step is repeated until the cage stops at a position 1.5m above the-720 m well mouth, at the moment, the head end of the first old tail rope pulled by the cage reaches the-720 m well mouth, the maintainer at the-720 m well mouth cuts off the first old tail rope at the connection position of the old rotator at the lower part of the cage, and at the moment, the first old tail rope pulled by the cage side is completely removed;
s5, after the first old tail rope section dragged by the cage is completely removed, the rotator at the lower part of the cage is positioned at a well mouth of-720 m, the well mouth of-720 m at the side of the cage is sealed by a wood plate, and the old rotator at the lower part of the cage is manually disassembled;
s6, passing the new rope head manufactured in advance through a bend pulley on the side of the cage, installing a rotator with the manufactured new rope head on the lower part of the cage, and detaching a wood plate for sealing a well mouth of-720 m on the side of the cage; slowly ascending the cage and slowly descending the skip until the old rotator at the lower part of the skip reaches a position 1.5m above a-744 m loading station, sealing a skip side well mouth of the-744 m loading station by using a wood plate, and manually disassembling the old rotator at the lower part of the skip; a steel wire rope pulled by a 1t winch at a loading station of-744 m passes through a bend pulley at the skip side, and is lowered to the bottom of a well of-782 m with a pair of belt rope plate cards;
s7, fixing an 8t pulley between two cage guide beams at four meters above a-720 m well head by using a rope fastener to pass through the two cage guide beams;
s8, detaching a fixed facility of a tail rope rack trolley at a position of a-720 m well mouth, manually pushing the tail rope rack trolley to move towards a 3t winch, moving a new tail rope to the ground of the-720 m well mouth from the tail rope rack trolley after the tail rope rack trolley moves to the position of the 3t winch, cutting off the new tail rope at a position of eighty-nine meters away from the position of the-720 m well mouth, manually dragging a rope head of the cut-off new tail rope to the-720 m well mouth by a 720m well mouth maintainer, penetrating the rope head into an 8-ton pulley, and manually matching the 3t winch to drive the new tail rope to the-782 m well mouth;
s9, after the new tail rope reaches a-782 m shaft bottom, a maintainer at the-782 m shaft bottom beats the rope-carrying plate on the new rope at the rope head, and fixes the new tail rope between the rope head and the rope-carrying plate on a steel wire rope pulled by a 1t winch at the side of the skip;
s10, pulling the other rope end of the new tail rope to pass through the tail rope isolation device to be lifted upwards by using a 1t winch at a-744 m loading station until the other rope end of the new tail rope reaches the-744 m loading station, then manufacturing a new rope end, installing a new rotator at the lower part of the skip, and installing the new rope end on the new rotator at the lower part of the skip; and after the new rope head at the skip side is installed, disassembling a wood plate for the skip side well mouth of the 744m loading station, and disassembling an 8t pulley installed at the cage side-720 m well mouth.
2. The method for replacing the tail rope of the floor type friction hoist as claimed in claim 1, characterized in that: and replacing a second tail rope according to the steps from S1 to S9 in tail rope replacement, disassembling a 3t winch and a redirection pulley which are arranged at a cage side-720 wellhead, a redirection pulley and a 1t winch facility which are arranged at a skip side after all tail ropes are replaced, and finishing the old tail ropes.
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| CN112694001B (en) * | 2020-12-09 | 2023-01-06 | 徐州市三森威尔矿山科技有限公司 | Method for replacing flat tail rope of mine hoisting system |
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| SU541768A1 (en) * | 1975-09-16 | 1977-01-05 | Днепропетровский Государственный Проектный Институт "Днепрогипрошахт" | The method of changing the tail ropes of mine hoisting installations |
| CN1597491A (en) * | 2004-09-27 | 2005-03-23 | 山西潞安矿业（集团）有限责任公司常村煤矿 | Fast rope changing device of floor type multirope friction elerator |
| CN105460759A (en) * | 2016-01-20 | 2016-04-06 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Method for replacing tail rope of main well winch |
| CN106081836A (en) * | 2016-08-31 | 2016-11-09 | 山东黄金矿业（玲珑）有限公司 | Vertical shaft head rope and tail rope replacing options |
| CN107150945A (en) * | 2017-06-21 | 2017-09-12 | 山东黄金矿业（玲珑）有限公司 | Headframe formula four-rope friction winder head rope replacing options |
| CN107585668A (en) * | 2017-09-05 | 2018-01-16 | 淮南矿业(集团)有限责任公司 | Auxiliary shaft, combined shaft tail rope change construction technology |
| CN108394800A (en) * | 2018-03-28 | 2018-08-14 | 徐州九益科技有限公司 | Vertical shaft hoist tail rope Replacement procedure |
| CN208883262U (en) * | 2018-10-12 | 2019-05-21 | 江西省德兴市花桥金矿有限责任公司 | One kind is for the mechanical old tail rope device of receipts of vertical shaft for mine tail rope replacement |
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