CN110388221B - Mounting method of large-tonnage bridge crane in blind shaft super-large elevator chamber - Google Patents
Mounting method of large-tonnage bridge crane in blind shaft super-large elevator chamber Download PDFInfo
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- CN110388221B CN110388221B CN201910589383.3A CN201910589383A CN110388221B CN 110388221 B CN110388221 B CN 110388221B CN 201910589383 A CN201910589383 A CN 201910589383A CN 110388221 B CN110388221 B CN 110388221B
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- hoisting
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- elevator chamber
- rope
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 238000005553 drilling Methods 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 4
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 241000668854 Howardia biclavis Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
- B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D13/00—Large underground chambers; Methods or apparatus for making them
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention relates to an installation method of a large-tonnage bridge crane in an extra-large elevator chamber of a blind shaft, which changes the installation mode of mechanically hoisting the large-tonnage bridge crane before capping the surface building in the prior art, utilizes the elevator chamber to drill a hole in a stressed load center, installs a double-safety locking rope device in the drilling chamber, lowers a steel wire rope sleeve to the elevator chamber, and lifts a main electric lifting chain to a position tightly attached to a top plate. The large-tonnage bridge crane is hoisted to the preset position by utilizing the hoisting system for three times, and is reliable and convenient on the theoretical and hoisting safety requirements.
Description
Technical Field
The invention relates to a method for hoisting an underground large-tonnage bridge crane, in particular to a method for installing a large-tonnage bridge crane in a chamber of an extra-large hoisting machine of a blind shaft.
Background
Aiming at the underground elevator chamber with a larger section, such as the underground elevator chamber of a mine in Sanshan island gold mine, the length is 18.7m, the width is 14.1m, the height is 15.65m, and the installation difficulty of a large-tonnage bridge crane is very high. The driving installation in the elevator chamber needs to be carried out simultaneously with the installation of shaft equipment, and the stable vehicle group and the sinking derrick cannot be detached, so the installation and operation space is limited. On the other hand, the distance between the upper travelling trolley of the chamber and the top plate is smaller, for example, in the case of the underground elevator chamber of a certain mine of the Sanshan island gold mine, the distance between the upper travelling trolley of the chamber and the top plate is only 2 meters, and the operation space is further limited. The dead weight of the large-tonnage 60t/10t electric bridge crane is 38.976t, and the tonnage is large; the underground excavation chamber is poured, and underground hoisting cannot be implemented by a large-tonnage truck crane.
One design in the prior art is to construct a wood pile in a hoist chamber and realize the hoisting of a large-tonnage bridge crane in the extra-large hoist chamber through alternate lifting. Although the design can utilize the inner space of the elevator chamber to finish the hoisting of the large-tonnage bridge crane in the extra-large elevator chamber, the defects of large equipment consumption, large construction amount and complicated construction exist because the wood crib and the hydraulic jack need to be repeatedly disassembled and assembled.
Disclosure of Invention
The invention aims to solve the technical problem of providing an installation method of a large-tonnage bridge crane in a super large elevator chamber of a blind shaft, and the convenient hoisting of the large-tonnage bridge crane in the super large elevator chamber is realized by installing the upper end of a main electric hoist chain.
The technical scheme of the invention is as follows:
a method for installing a large-tonnage bridge crane in a blind shaft extra-large elevator chamber is characterized by comprising the following steps:
the first step is as follows: drilling construction and sealing a wellhead:
1) constructing a drilling machine chamber right above the elevator chamber;
2) drilling a stress load center between the top plate of the elevator chamber and the drilling machine chamber; the distance from the top plate of the elevator chamber to the bottom surface of the drilling machine chamber is required to be not less than 12 m;
3) closing a shaft at the joint of the elevator chamber and the guide wheel chamber;
secondly, the following steps: construction rig chamber lock rope device:
1) constructing a plurality of anchor rods on one side of the wall body of the drilling machine chamber, and welding the outer ends of the anchor rods with the drilling manganese steel plate to be used as a rope locking clamp for hoisting the uppermost end of the steel wire rope;
2) erecting a rope locking beam right above the drilled hole, fixing a guide wheel frame on the rope locking beam, installing a guide wheel at the upper end of the guide wheel frame, and installing a steel wire rope board card on the rope locking beam;
3) a steel wire rope is lowered through the drilled hole and sleeved to the elevator chamber and connected with a main electric hoisting chain, the main electric hoisting chain is lifted to the hoisting chain, a hook is tightly attached to a top plate of the elevator chamber, then the steel wire rope is fixed on a rope locking beam through a steel wire rope clamp, and the part of the steel wire rope above the clamp bypasses a guide wheel and is fixed to the rope locking clamp at the upper end;
the third step: hoisting operation:
1) firstly, hoisting a travelling crane steel beam assembled on the roller side of a hoisting machine to an overhead travelling crane beam, and pulling the travelling crane steel beam to the roller side by using an auxiliary electric hoist chain;
2) hoisting the other assembled travelling crane steel beam to the overhead travelling crane beam, and pulling the other assembled travelling crane steel beam to the motor side of the hoister by using an auxiliary electric hoisting chain;
3) and finally, hoisting the traveling trolley, stopping hoisting when a certain gap is reserved between the bottom of the traveling trolley and the upper plane of the traveling beam rail, pulling the traveling beams on two sides to the lower part of the traveling trolley by using auxiliary electric hoisting chains, and transferring the traveling trolley after connection.
Preferably, the method for constructing a sealing layer in step 3) of the first step comprises: the I-shaped steel serving as the main beam and the channel steel serving as the auxiliary beam are mutually welded to form a beam frame, a pattern steel plate serving as a bottom plate is welded on the beam frame, and then sand serving as a buffering and fireproof layer is paved.
Preferably, the method of erecting the rope locking beam in the second step 2): and pouring a pre-embedded raw rib hook steel plate on the bottom surface of the drilling machine chamber, and welding two I-shaped steels on the raw rib hook steel plate at intervals.
The invention utilizes a drilling machine chamber and a guide hole to construct in the extra-large elevator chamber, and is provided with a rope locking device, and a main electric hoisting chain is arranged at the uppermost end of a stress load center of the elevator chamber. On one hand, the hoisting space is effectively expanded, on the other hand, the stress of the main electric hoisting chain is decomposed to the drilling machine chamber, and the hoisting machine chamber is protected. The main technical advantages are as follows: with the continuous development of metal mineral resources, the earth superficial resources are gradually reduced and tend to be depleted, so that the metal mine development is continuously developed to deep well exploitation, and the scale is continuously increased. At present, only a few metal mines with the mining depth exceeding more than kilometers are mined in China, and the mining scale is small. Under the background, the invention provides a new technology for installing an underground super-huge chamber crane, and solves the problems that the underground large-scale elevator chamber vault hoisting space is insufficient, and if the traditional wood buttress is adopted for alternately hoisting and installing, the time consumption, the labor consumption and the material consumption are caused.
The double-safety locking rope device is arranged in the drilling chamber, so that the overall safety and reliability are further improved.
Detailed Description
The process of the present invention is further illustrated below with reference to specific examples.
The diameter of a blind mixed well shaft of a certain mine of the Sanshan island gold mine is 5.5m, the elevation of a well head is-600 m, and the elevation of a well bottom is-1240 m. The lowest served the-1240 m mid-segment. A mixed well wellhead signal chamber is arranged at the position of 600m below zero. The elevator chamber is arranged at the elevation of-537.3 m, has the length of 18.7m, the width of 14.1m and the height of 15.65m and is communicated with the existing slope way through a large communicating way. A60 t/10t electric bridge crane is arranged in the hoisting machine room and used for equipment installation and maintenance.
According to construction organization design, the driving installation of a-537 blind mixed well hoisting machine room and the installation of shaft equipment are carried out simultaneously, a stable vehicle group and a sinking derrick in the hoisting machine room can not be detached, the space is narrow, and the following installation modes are adopted according to the field construction condition:
1. and constructing the drilling machine chamber on the last subsection of the elevator chamber by using a-510 m abandoned roadway, and constructing a drill hole with the diameter of 108mm at the center of a load bearing between a top plate (-521 m) of the-537 m elevator chamber and the-510 m drilling machine chamber by using a raise boring machine.
2. At the joint position of the elevator chamber and the guide wheel chamber, closing a-546 shaft for guaranteeing the safe operation of shaft equipment personnel: using 32# I-steel as a main beam and 16# channel steel as a secondary beam, using a 6mm pattern steel plate as a bottom, and then paving 500mm sand as a buffering and fireproof layer; 537 ground pit opening closure as an operating platform: a32 # I-steel is used as a main beam, a 16# channel steel is used as a secondary beam, and a 6mm pattern steel plate is used as a bottom.
3. After the drilling construction of 510m is completed, 5 anchor rods are constructed on one side of the wall body of the chamber of the drilling machine in an inverted conical shape, the outer ends of the anchor rods are welded into a whole, and after the hole is drilled by a manganese steel plate with the thickness of 40mm, the outer ends of the anchor rods are welded to be used as rope locking clamps; two 32I-beams are erected above a drilled hole of a bottom plate of a drilling machine chamber of-510 m to serve as locking rope beams, the distance between the two 32I-beams is 10cm, a pre-embedded steel bar hook steel plate is poured on the bottom plate below the 32I-beams, and the steel bar hook steel plate and the 32I-beams are welded into a whole. And a guide wheel frame in the longitudinal direction is welded on the rope locking beam, a board card is arranged on the guide wheel frame, and a guide wheel is arranged at the upper end of the guide wheel frame.
4. And (3) lowering a steel wire rope with the diameter of 40 from-510 to a-537 elevator chamber, lifting the 20t electric sling chain to the sling chain, enabling a hook to be tightly attached to a top plate (the minimum distance between a travelling trolley and the top plate is only 2 meters), fixing the steel wire rope on a rope locking beam through the board card, and fixing the steel wire rope on the rope locking card at the upper end after bypassing the guide wheel.
5. The maximum single piece weight of the hoisting is 13t, and 4 steel wire ropes with the diameter of 28mm are adopted for hoisting the steel wire ropes. Hoisting sequence: using 20t electric sling chain (as main electric sling chain) for three times: firstly, hoisting a travelling crane steel beam assembled on the roller side of a hoist to an overhead travelling crane beam, and pulling the travelling crane steel beam to the roller side by using 2 sets of 3t lifting chains (serving as auxiliary electric lifting chains) at a position 10 meters (in the horizontal direction) away from a lifting point; hoisting the other assembled crane steel beam to the overhead travelling crane beam, and pulling the crane steel beam to the motor side of the hoister by using 2 sets of 3t hoisting chains (serving as auxiliary electric hoisting chains) at a position 3 meters away from a hoisting point (in the horizontal direction); finally hoisting the travelling trolley: and stopping hoisting when the distance between the bottom of the trolley and the upper plane of the travelling beam rail is 200mm, pulling down the lower parts of the travelling trolleys by using 2 sets of 3t hoisting chains (serving as auxiliary electric hoisting chains) to connect the travelling trolleys and then putting down the travelling trolleys. And completing the installation of the three parts.
6. Remaining part widget installation order: hoisting the electric control part, oiling the speed reducer and connecting the main power supply to test.
7. And (5) after the installation is finished, dismantling the hoisting facility.
The overhead traveling crane beam is fixedly connected to two opposite side walls of the elevator chamber in a fixing mode such as an anchor rod. The auxiliary electric hoist chains are located above the crown block beam and fixedly connected to two opposite side walls of the elevator chamber in a fixing mode such as anchor rods. The travelling crane steel beam and the travelling trolley are positioned on a closed layer at the joint of the elevator chamber and the guide wheel chamber before hoisting. The hoisting motor and the roller are also positioned on the closed layer at the joint of the elevator chamber and the guide wheel chamber. And the guide wheel for hoisting is positioned in the guide wheel chamber below the closed layer.
Claims (3)
1. A method for installing a large-tonnage bridge crane in a blind shaft extra-large elevator chamber is characterized by comprising the following steps:
the first step is as follows: drilling construction and sealing a wellhead:
1) constructing a drilling machine chamber right above the elevator chamber;
2) drilling a stress load center between the top plate of the elevator chamber and the drilling machine chamber; the distance from the top plate of the elevator chamber to the bottom surface of the drilling machine chamber is required to be not less than 12 m;
3) closing a shaft at the joint of the elevator chamber and the guide wheel chamber;
secondly, the following steps: construction rig chamber lock rope device:
1) constructing a plurality of anchor rods on one side of the wall body of the drilling machine chamber, and welding the outer ends of the anchor rods with the drilling manganese steel plate to be used as a rope locking clamp for hoisting the uppermost end of the steel wire rope;
2) erecting a rope locking beam right above the drilled hole, fixing a guide wheel frame on the rope locking beam, installing a guide wheel at the upper end of the guide wheel frame, and installing a steel wire rope board card on the rope locking beam;
3) a steel wire rope is lowered through the drilled hole and sleeved to the elevator chamber and connected with a main electric hoisting chain, the main electric hoisting chain is lifted to the hoisting chain, a hook is tightly attached to a top plate of the elevator chamber, then the steel wire rope is fixed on a rope locking beam through a steel wire rope clamp, and the part of the steel wire rope above the clamp bypasses a guide wheel and is fixed to the rope locking clamp at the upper end;
the third step: hoisting operation:
1) firstly, hoisting a travelling crane steel beam assembled on the roller side of a hoisting machine to an overhead travelling crane beam, and pulling the travelling crane steel beam to the roller side by using an auxiliary electric hoist chain;
2) hoisting the other assembled travelling crane steel beam to the overhead travelling crane beam, and pulling the other assembled travelling crane steel beam to the motor side of the hoister by using an auxiliary electric hoisting chain;
3) and finally, hoisting the travelling trolley, stopping hoisting when a certain gap is reserved between the bottom of the travelling trolley and the upper plane of the travelling trolley steel beam rail, pulling the travelling trolley steel beams on two sides to the lower part of the travelling trolley by using auxiliary electric hoisting chains, and transferring the travelling trolley after connection.
2. The method of installing a large tonnage bridge crane for blind shaft jumbo elevator chambers as set forth in claim 1, wherein the first step of step 3) is a method of constructing the seal layer of the closed shaft: the I-shaped steel serving as the main beam and the channel steel serving as the auxiliary beam are mutually welded to form a beam frame, a pattern steel plate serving as a bottom plate is welded on the beam frame, and then sand serving as a buffering and fireproof layer is paved.
3. The method for installing the large-tonnage bridge crane in the blind shaft extra large elevator chamber according to claim 1 or 2, characterized in that in the step 2) of the second step, the method for erecting the locking rope beam comprises the following steps: and pouring a pre-embedded raw rib hook steel plate on the bottom surface of the drilling machine chamber, and welding two I-shaped steels on the raw rib hook steel plate at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589383.3A CN110388221B (en) | 2019-07-02 | 2019-07-02 | Mounting method of large-tonnage bridge crane in blind shaft super-large elevator chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589383.3A CN110388221B (en) | 2019-07-02 | 2019-07-02 | Mounting method of large-tonnage bridge crane in blind shaft super-large elevator chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110388221A CN110388221A (en) | 2019-10-29 |
| CN110388221B true CN110388221B (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910589383.3A Active CN110388221B (en) | 2019-07-02 | 2019-07-02 | Mounting method of large-tonnage bridge crane in blind shaft super-large elevator chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4951924A (en) * | 1988-02-01 | 1990-08-28 | Mcdermott International, Inc. | Deepwater subsea lowering/lifting system |
| JPH09328292A (en) * | 1996-06-10 | 1997-12-22 | Tokyo Gas Co Ltd | Crane for truck |
| CN203441517U (en) * | 2013-05-10 | 2014-02-19 | 玉溪大红山矿业有限公司 | Ventilation device capable of effectively reducing poisonous air in mine transporting tunnel |
| CN103964285B (en) * | 2014-05-07 | 2015-09-09 | 中钢集团马鞍山矿山研究院有限公司 | A kind of many rope floor types change tower interior shaft elevator system non-stop production reformation method |
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