CN113443337A - Integral section lifting method for dumping machine and displacement belt conveyor - Google Patents
Integral section lifting method for dumping machine and displacement belt conveyor Download PDFInfo
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- CN113443337A CN113443337A CN202110800385.XA CN202110800385A CN113443337A CN 113443337 A CN113443337 A CN 113443337A CN 202110800385 A CN202110800385 A CN 202110800385A CN 113443337 A CN113443337 A CN 113443337A
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000000630 rising effect Effects 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 19
- 230000001174 ascending effect Effects 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 5
- 230000013011 mating Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 28
- 239000011435 rock Substances 0.000 description 15
- 239000002699 waste material Substances 0.000 description 15
- 230000008569 process Effects 0.000 description 10
- 238000009434 installation Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000013509 system migration Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
- B65G15/32—Belts or like endless load-carriers made of rubber or plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
- B65G41/006—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames with the conveyor not adjustably mounted on the supporting frame or base
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/003—Foundations for pavings characterised by material or composition used, e.g. waste or recycled material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to an integral segment lifting method for a dumping machine and a displacement belt conveyor, which comprises the following steps: (1) a primary lifting section: stacking an inclined plane a gradually rising towards the S-N direction and the W-E direction, and paving an inclined roadbed at the upper end of the inclined plane a; moving the dumping plough to the W end of the conveyor, wherein the W end is relatively immobile, and the front part of the conveyor moves in a sector shape on the inclined plane a for multiple times along the S-N direction and is continuously lifted to the inclined roadbed; (2) and (3) secondary ascending: on the basis of the primary lifting section, an inclined plane b which gradually rises towards the S-N direction and the E-W direction is formed in a stacking mode, and a horizontal roadbed is paved at the upper end of the inclined plane b; and moving the dumping plough to the end E of the conveyor, wherein the end E is relatively immobile, and the rear part of the conveyor moves in a sector shape on the inclined surface b for multiple times along the S-N direction and is continuously lifted to the horizontal roadbed. The invention provides a soil discharging machine and a displacement type belt conveyor integral lifting method, which can realize integral lifting of the soil discharging machine and the displacement type belt conveyor.
Description
Technical Field
The invention belongs to the technical field of tailing treatment, and particularly relates to an integral section lifting method of a dumping machine and a displacement belt conveyor.
Background
For example, the displacement belt conveyor disclosed in CN201310071536.8 can effectively solve the problem that the belt conveyor cannot move flexibly and cannot move for discharging when the mining surface or the discharging surface of a surface mine and the like is changed frequently, so as to meet the conveying requirement with an optimized and most economical scheme.
For example, CN201210408309.5 discloses an integral section lifting method of a dumping plough, which solves the problems that the prior art has large engineering quantity, long production stop section lifting period and can not meet the actual production requirement in the start-up section lifting method of the dumping plough.
The overall lifting section of the shift type belt conveyor (for short, a shift belt) needs to adopt automobile transportation waste rocks to lay a roadbed for the lifting section of the belt and the lifting section of the dumping plough, the production cost is high, the construction period is long, and the like, and the existing lifting section mode has the defects in the following aspects:
1. the whole ascending section needs to use an automobile to transport waste rocks to be used as a belt to make a roadbed, and the problem of large investment and long construction period is solved. The existing belt section rising mode adopts an integral section rising mode, a belt section rising roadbed needs to be paved by transporting waste rocks to a specified section rising route in advance by using an automobile, a large amount of waste rocks need to be transported by the automobile, and section rising investment cost is greatly increased. And the construction period is long in the process of laying the roadbed by using the automobile to transport the waste rocks, the waste rocks are subjected to cross operation with a dumping machine, and the difficulty of safe work management is high.
2. The whole ascending section needs to transport waste rocks by using an automobile to lay the roadbed for the ascending section of the dumping plough, so that the investment is large, and the construction period is long. The existing belt lifting mode adopts an integral lifting section, after a movable belt is made of automobile transportation waste rocks, the automobile transportation waste rocks are needed to be used for laying a roadbed for a lifting section walking route of the dumping plough, and a receiving trolley walking track needs to be laid on the roadbed after the lifting section roadbed of the dumping plough is made, so that the belt lifting section investment cost is greatly increased.
3. The whole ascending section of the traditional belt needs the automobile transportation waste rocks to be used as the safety problem of the cross operation in the production process of the roadbed and the dumping machine. The existing belt lifting section adopts an integral lifting section, waste rocks are required to be transported by an automobile before the lifting section, a belt lifting section roadbed is laid, the belt lifting section roadbed and a dumping plough are normally produced to form cross operation, and the safety management difficulty and risk of a dumping yard site are increased.
Disclosure of Invention
In order to solve the technical problems, the invention provides a soil discharging machine and an integral lifting method of a displacement belt conveyor, which can realize integral lifting of the soil discharging machine and the displacement belt conveyor.
The specific technical scheme is as follows: an integral segment lifting method for a dumping machine and a displacement belt conveyor comprises the following steps:
(1) a primary lifting section: and taking the W end as a circle center, taking the front length of the displacement type belt conveyor as a radius, and dumping and accumulating the soil along the S-N direction and the W-E direction by a dumping machine to form an inclined plane a gradually rising towards the S-N direction and the W-E direction, laying an inclined roadbed with a high E end and a low W end for the displacement type belt conveyor at the upper end of the inclined plane a, wherein the gradient of the inclined plane a is 10-15%, the gradient of the inclined roadbed is 1-8%, and constructing a path of a rising section of the E end.
The soil discharging machine is used for constructing an inclined plane a which gradually rises towards the whole in the S-N direction and the W-E direction, so that the E end of the shift type belt conveyor can realize primary side shift and lifting section conveniently; the front part refers to the part in front of the W end of the shift type belt conveyor; the rear part described below refers to a part after the end of the shift type belt conveyor E.
The slope of the inclined plane a is 10-15% for quick drawing, and because the inclined plane is a lifting route, the height can be quickly lifted by pulling through an external traction device such as a loader and a bulldozer (with strong pulling force), and the slope is larger because the inclined plane generally lifts about 10 meters in actual work.
The slope of the roadbed is 1-8% because the inclined roadbed is a traveling roadbed of the dumping plough and the dump car, and because the dumping plough is heavy, the roadbed is difficult to travel at an excessively high slope. The method is characterized in that the road surface, the inclined roadbed and the horizontal roadbed which pass through the moving device are leveled and compacted, and the hard ground is paved by adopting broken stone materials, so that the ground is relatively level, and accidents caused by difficulty in advancing of a dumping machine and a dumping car or collapse of the roadbed due to over-softness of the roadbed are avoided.
Moving the dumping plough to the W end of the shift type belt conveyor, keeping the W end of the shift type belt conveyor relatively immobile, and enabling the front part of the shift type belt conveyor to move in a sector shape on the inclined plane a for a plurality of times along the S-N direction and continuously rise to the inclined roadbed; the relative immobility means that the general position is still, but the relative rotation can be performed around the center of the general position to adjust the position of the general position so as to ensure that the displacement type belt conveyor keeps a straight line, thereby being convenient for the movement of the dumping plough and the dumping car (in the prior art, the general dumping operation is completed by matching the dumping plough, the dumping car and the displacement type belt conveyor, the dumping car can be movably arranged on the displacement type belt conveyor in a back-and-forth movement way, and the dumping car is connected with the dumping plough); the shifting type belt conveyor gradually moves laterally through the traction device, the tensioning device and the tensioning winch are required to be loosened before lateral movement, the belt conveyor cuts off a power supply and relevant cables to be dismantled, rail welding personnel must observe the rail damage condition at any time, and if cracks exist, shifting is stopped immediately and rail welding is carried out; after the belt is moved to a designated position, roughly correcting the straightness of the belt frame, and ensuring that the straightness of the belt frame can be corrected after the head station is in place.
(2) And (3) secondary ascending: on the basis of the primary lifting section, taking the end E as the center of a circle, taking the length of the rear part of the displacement type belt conveyor as the radius, dumping and stacking through a dumping machine to form an inclined plane b gradually rising towards the S-N direction and the E-W direction integrally, laying a horizontal roadbed for the displacement type belt conveyor to use at the upper end of the inclined plane b, and enabling the gradient of the inclined plane b to be 10-15%; and (4) making a path of the W-end ascending section.
And moving the dumping plough to the end E of the displacement type belt conveyor, keeping the end E of the displacement type belt conveyor relatively immobile, and enabling the rear part of the displacement type belt conveyor to move in a sector-shaped manner on the inclined surface b for multiple times along the S-N direction and continuously rise to the horizontal roadbed. And carrying out lifting section of the W end on the basis of the primary lifting section roadbed so as to realize integral lifting section of the dumping plough and the conveyor.
The belt conveyor connected to the displacement belt conveyor is correspondingly adjusted to enable mating connection. The tail station of the displacement belt conveyor is generally movably connected with an external belt conveyor (connected with an ore source), and when the position of the displacement belt conveyor is moved, the external belt conveyor is also correspondingly adjusted, so that the conveying is smooth.
The invention realizes the integral lifting section work of the dumping plough and the conveyor by adopting a mode of sector side shifting and sub-lifting sections (firstly, the front lifting section and then the rear lifting section) for a plurality of times, avoids the defects of complicated working procedures, large engineering quantity, time and labor consumption and low efficiency caused by the fact that all mechanisms are required to be disassembled and then assembled in the traditional mode, and comprises the following steps:
(1) and (3) carrying distance comparison: compared with the common scheme, the ascending section scheme saves climbing distance 367m, and 1167 ten thousand m of high-elevation and high-elevation cultivation is performed, so that the automobile transportation cost is expected to be saved by 955 ten thousand yuan.
(2) And (4) comparing the transfer times with time: compared with the common scheme, the ascending scheme reduces the moving for 2 times in three years and increases the effective production days for 40 days. The lifting section work and the dumping machine avoiding are finished in the moving process, so that the transition time of the dumping machine in the direct lifting section process is reduced, and the starting time of the system is increased.
(3) And (3) comparing the production efficiency: the lower row height of the lifting section scheme is increased by 15m, the walking frequency of the dumping plough is reduced, the operation efficiency is high, and the system is stable.
(4) The section lifting cost is saved: a subsection section lifting method is adopted, all section lifting projects are automatically arranged through a dumping machine, and the dumping of an automobile is not needed.
(5) Compared with a one-time section lifting scheme, the moving period is short, the moving is relatively simple, the walking and the parking of the dumping plough are safe, and the storage capacity is large. The first transfer can be completed in 15 days and the second transfer can be completed in 30 days.
The invention adopts a mode of sector moving and sectional lifting, the E end of a displacement type belt conveyor (called as a moving belt for short) firstly adopts a mode of sector moving and sectional lifting to lift the section to a specified position, and the W end of the moving belt does not move. The section rising mode forms a field geographical position with a high E end and a low W end, the dumping plough walks in the production process and carries out dumping operation along the W end to the E end, and the dumping plough can operate to form a required moving inclined plane path in the advancing process, so that the problem that the investment cost is increased by the integral section rising mode because automobile transportation waste rocks are needed to lay a roadbed for the dumping plough and a track is laid by a receiving trolley is solved; the problems that the investment cost of the whole ascending section is high, the construction period is long, the safety control risk is large and the like when the road bed is paved by using the automobile to transport the waste rocks are solved; the operation cross operation of the waste rocks in the automobile transportation and the dumping machine is avoided, and the risk is reduced.
Drawings
FIG. 1 is a schematic illustration of an incline and subgrade of a dredge configuration;
FIG. 2 is a schematic top view of a motion trajectory of a displacement belt conveyor;
FIG. 3 is a schematic elevation section view of a displacement belt conveyor;
wherein, 1 is an inclined surface a; 2, inclining the roadbed; 3, an inclined surface b; 4 horizontal roadbed; 5 a dumping machine.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention. Wherein E, W, N, S does not represent a certain direction, but is used for descriptive convenience for illustration.
An integral lifting method of a dumping machine and a displacement belt conveyor as shown in figures 1-3 comprises the following steps:
(1) a primary lifting section: taking the W end as a circle center, taking the front length of the displacement type belt conveyor as a radius, and dumping and accumulating the soil along the S-N direction and the W-E direction by a dumping machine to form an inclined plane a gradually rising towards the S-N direction and the W-E direction integrally, laying an inclined roadbed with the E end higher than the W end and lower than the W end for the displacement type belt conveyor at the upper end of the inclined plane a, wherein the gradient of the inclined plane a (the S-N direction) is 10-15%, and the gradient of the inclined roadbed (the W-E direction) is 1-8%;
moving the dumping plough to the W end of the shift type belt conveyor, keeping the W end of the shift type belt conveyor relatively immobile, and enabling the front part of the shift type belt conveyor to move in a sector shape on the inclined plane a for a plurality of times along the S-N direction and continuously rise to the inclined roadbed;
(2) and (3) secondary ascending: on the basis of the primary lifting section, an inclined plane b gradually rising towards the S-N direction and the E-W direction is formed by dumping and stacking through a dumping machine by taking the end E as the center of a circle and the rear length of the displacement type belt conveyor as the radius, a horizontal roadbed for the displacement type belt conveyor to use is laid at the upper end of the inclined plane b, and the gradient (S-N direction) of the inclined plane b is 10-15%. Note: the grade is the degree of steepness of the surface unit, and the ratio of the vertical height h of the slope to the horizontal distance l is usually called the grade.
And moving the dumping plough to the end E of the displacement type belt conveyor, keeping the end E of the displacement type belt conveyor relatively immobile, and enabling the rear part of the displacement type belt conveyor to move in a sector-shaped manner on the inclined surface b for multiple times along the S-N direction and continuously rise to the horizontal roadbed.
Further, the displacement type belt conveyor is pulled to move by a traction device.
Further, the displacement type belt conveyor gradually moves laterally through a traction device.
Further, the inclined roadbed and the horizontal roadbed are subjected to rolling operation by a rolling device.
Further, the belt conveyor connected with the displacement belt conveyor is correspondingly adjusted to be matched and connected.
Examples
The first rising section of the shift type belt conveyor (hereinafter referred to as a shift belt) adopts a head station to rise first to a designated elevation (such as elevation of figure 3 and elevation of 2035), specifically, the head station of the shift belt moves 100 meters and the rising section moves 15 meters to one side sector, the tail station of the shift belt does not move (such as figure 2), and the earth discharging machine avoids the tail station of the shift belt in the process of sector moving and local rising section. The roadbed with the elevation section at the head station is formed by dumping through a dumping machine in the daily production process, and the height difference between the formed new roadbed and the position of the original displacement type moving belt is formed by the dumping machine in daily life to meet the condition of moving the moving belt. Through the measures, the work of the first lifting section of the movable belt head station is completed.
2) The second lifting section of the moving belt adopts a head station to be immobile, and a tail station is in sector shape and is lifted by 15 meters after being moved by 100 meters. Because the tail station is combined with the external conveyor, the external conveyor needs to be lifted 15 meters and is prolonged by 200 meters along the installation direction to work in cooperation with the lifting section of the movable belt, all the moved pavements and the lifting section roadbeds are completed in the daily dumping work of the dumping device in the process, and the investment cost of the lifting section of the movable belt is greatly reduced.
3) The work of the lifting section of the movable belt is completed through the above two steps, the avoiding work of the dumping machine is noticed in the process of twice lifting sections, the dumping walking route of the dumping machine after the lifting section is completed by the dumping machine in the daily dumping production process, and the problem of safety of cross operation in the production process that the whole lifting section of the traditional movable belt needs to be used for transporting waste rocks to form a roadbed by an automobile and the dumping machine is solved.
Construction scheme
1.1 first-time field construction
The gradient of the first ascending section field in the WE direction is 1.13%, and the gradient of the SN direction is basically controlled to be 10-15%. The three areas are operated, namely a 60-110 m operation area, a 25-60 m operation area and a 25 m-existing belt position operation area. And each area is subjected to soil removal according to three conditions of building a platform, building a slope and building a road after the road is moved.
The first step is as follows: the dumping machine runs to the E end, and heaps the SE area, and the elevation is controlled to 2035 m. As the discharging radius of the bulldozer is 110m, the area needs to be operated for many times, and the bulldozer pushes and discharges.
The second step is that: and (3) carrying out paying-off construction from E to W by the aid of the dumping plough, building a belt initial roadbed at a gradient of 1.13%, and setting the width of the roadbed to be 5m on each side of a belt center line. Discharging materials of the roadbed in the S-direction according to the traveling requirements of the dumping machine, wherein the discharging height is controlled to be 2-4 m above the roadbed elevation. And discharging the roadbed according to the building slope by using N, wherein the soil discharging range is 60-110 m.
The third step: and (4) operating the dumping machine in an operation area of 25-60 m, dumping according to the requirements of the second step, and operating from W to E.
The fourth step: after the operation from W to E is finished, the vehicle runs to the E part of the belt to produce, and provides operation time for pushing and arranging the S part of the field.
The fifth step: the dumping plough runs to the side of the belt N to start production, the operation range is 60-110 m, and the operation is carried out from E to W.
And a sixth step: the dumping plough runs to the W end on the N side of the belt, and works from W to E within the working range of 20-60 m.
The seventh step: and after the operation of the upper row on the N side is finished, the dumping plough runs to the side of the belt S, the operation is carried out from E to W, the operation requirement is consistent with that of the second step, and the dumping plough operates in an operation area at the position of 25 m-the existing belt.
Eighth step: the dumping plough runs to the W end of the belt, the W end of the S side of the belt starts to operate, and the shifting work is started after the field is leveled.
1.2 facility preparation
Because the construction period is tight, the engineering quantity is large, and the following construction preparation work is required to be done in advance before the mobile construction: 1. leveling and compacting the road surface and the moving belt road, and paving the road surface and the moving belt road into a hard ground by adopting broken stones or similar materials to ensure that the ground is level and relatively flat; 2. paying off and positioning a moving belt route, and determining a final moving position; 3. the front dumping plough is moved to the side of the moving W end S, and materials cannot be stored on the moving belt. 4. Equipment, vehicles and personnel are prepared in place, and in order to guarantee the construction period, a hoisting ring for hoisting the mobile head station is welded on a steel structure of the head station before the mobile head station is moved.
1.3 moving facility
1.3.1, construction procedure:
loosening the tensioning device and the tensioning winch → cutting off the power supply of the movable belt and the relevant cables → hoisting and shifting the electric room → disconnecting the joint of the ground anchor and the head station at the head station → starting to move the belt at the movable head station → moving the movable head station to the extended position → moving the ground anchor → butting the movable rear belt with the extended frame → spreading and vulcanizing the belt → moving the electric room, recovering the power and control cables → single machine and no-load debugging → combined test running.
1.3.2, a construction method:
loosening the tensioning device and the tensioning winch, cutting off the power supply of the belt conveyor and removing the related cables, wherein the power-off sequence is as follows: and (4) powering off a field belt conveyor junction box → powering off an electric room power supply → powering off a mobile substation → dismantling related cables. The electric room is dragged and shifted to vacate enough hoisting working positions for subsequent hoisting moving head stations.
4 loaders move 1m each time, and track welder must observe the track damage condition at any time, if crack exists, immediately stops moving and carries out track welding.
After the belt is moved to a designated position, roughly correcting the straightness of the belt frame, and ensuring that the straightness of the belt frame can be corrected after the head station is in place.
After the belt is broken, the moving head station is integrally shifted by adopting 2 large-tonnage cranes, and the moving distance reaches 100m, so that a 100T flat car is needed to drag the moving head station to a mounting position.
The ground anchor at the movable head station is moved, because the ground anchor device is deeply buried in the ground, in order to shorten the construction period, the ground anchor is dug out by an excavator, the ground anchor is lifted from a pit by a 100T crane, and finally the ground anchor is pulled to a new installation position by a flat plate handle. After the moving head station is successfully moved, the anchoring of the ground is positioned, and the screw buckle is manually tightened to tension the steel cable.
And after the moving belt is completely moved in place, recovering the belt, and finally vulcanizing the belt.
1.4 Power distribution and control System migration
1.4.1 construction procedure:
on-site distribution box power failure → electric room power failure → mobile substation power failure → power cable demolition → bridge demolition → control, protection cable demolition → distribution box demolition → electric room shift → shift change shift → distribution box recovery → bridge recovery → control, protection cable recovery → power cable recovery → electric room, shift change foundation leveling → electric room, shift change in place → grounding device installation → system debugging → cable box demolition → bridge demolition → control, protection cable demolition → power cable demolition → electrical room, shift change foundation leveling → electric room, shift change in place → grounding device installation → system debugging
1.4.2 construction method:
the control, protection and power cables are numbered firstly, then the branch box is powered off, the electric room is powered off, the mobile substation is powered off, the branch box is dismantled, and the branch box is placed on the mobile belt after being dismantled. The control and protection cables are detached from each small junction box (the medical belt and the marking pen are used for making wiring marks, and at least two marks are arranged at the positions far away from the wiring side). And (3) dismantling the side bridge frame of the electric room, moving to change, leveling the foundation of the electric room, and towing the electric room.
The belt head station overhead bridge is moved and recovered, the branch box is recovered, the power cable, the control cable and the protection cable are recovered to be connected according to the mark made before, and finally, power transmission and debugging are carried out.
1.5 leveling and resetting of external belt head station
1.5.1 construction procedure:
cleaning the external belt head station → loosening the belt tensioning device and the anchor bolt → hoisting the external belt head station by a crane and leveling and aligning → recovering the anchor and the belt tensioning device → trial running.
1.5.2 construction method:
the method comprises the steps of cleaning up the floating soil below an external belt head station in advance, measuring the inclination degree of the head station by a level gauge, confirming the elevation height, loosening a belt tensioning device to enable a belt conveyor not to be pulled, loosening a ground anchor turnbuckle, hoisting the external belt head station by two 75-ton cranes, laying sleepers and stones with corresponding heights below the external belt head station, adjusting the levelness of a headstock, and recovering the ground anchor tensioning bolt and the belt conveyor tensioning device.
And 1.6, moving the belt foundation and adjusting deviation.
And 1.7, single-machine trial running and combined trial running debugging.
1.8, carrying out trial production.
1.9 site construction of second ascending section
The EW direction of the field of the second ascending section is controlled to be at the elevation of 2035m, the head station (E end) is slightly higher than the tail station (W end), and the gradient of the SN direction is basically controlled to be 10-15%. The second stage raising project of the S part is divided into three areas, namely a 60-110 m operation area, a 25-60 m operation area and a 25 m-existing belt position operation area. And each area is subjected to soil removal according to three conditions of building a platform, building a slope and building a road after the road is moved.
The first step is as follows: the dumping machine operates on the side of the moving tail station S, and heaps the SW area, and the tail station elevation is controlled to 2035 m. As the discharging radius of the bulldozer is 110m, the area needs to be operated for many times, and the bulldozer pushes and discharges. After the construction of the tail station is finished, discharging is carried out according to the extension and lifting requirements of the external belt, and the external belt roadbed is built.
The second step is that: and constructing the belt initial roadbed according to the standard of 2035m by the dumping plough from W to E according to the design and paying-off, wherein the width of the roadbed is 5m on each side of the belt moving center line. Discharging materials of the roadbed in the S direction according to the walking requirement of the dumping machine, wherein the discharging height is controlled to be 2-4 m above the elevation of the roadbed. The roadbed discharges materials in the N direction according to a building slope, and the soil discharging range is 60-110 m.
The third step: and (5) operating the dumping machine in an operation area of 25-60 m, dumping according to the requirements of the second step, and operating from E to W.
The fourth step: after the operation from E to W is finished, the dumping plough runs to the head part (E end) of the belt for production, and provides operation time for pushing and dumping the S part field. (head reserved partial lower storage capacity under the premise of ensuring safety)
The fifth step: the dumping plough runs to the side of the belt N to start production, the operation range is 60-110 m, and the operation is carried out from E to W.
And a sixth step: the dumping plough runs to the W end on the N side of the belt, and works from W to E within the working range of 20-60 m.
The seventh step: and after the operation of the upper row on the N side is finished, the dumping plough runs to the side of the belt S, the operation is carried out from W to E, the operation requirement is consistent with that of the second step, and the dumping plough operates in an operation area at the position of 25 m-the existing belt.
Eighth step: the dumping plough runs to the head of the belt, starts the operation of the head of the side S of the belt, and starts the transfer work after the field is leveled.
1.10 facility preparation
Before the belt is moved, a machine frame which is externally connected with a belt and is used for prolonging is assembled, tools and appliances required by the belt are prepared to be moved and transported to the site for placing, and rubber materials and equipment required by the shortened and prolonged belt are prepared to be vulcanized.
1.11 moving facility
This migration project can be divided into two major parts: first part (highlight): the external belt transfer station is moved, the external belt conveyor is prolonged by 220m, and the external belt joint is vulcanized. A second part: moving the movable belt conveyor, and vulcanizing the moved belt joint; the angle of the movable head driving device and the foundation horizontally rotates, and the ground anchor caisson is moved.
In view of the nature of the two-part moving project, the construction site conditions and other factors, the two-part project can be constructed in a parallel operation mode.
1.12, construction process:
1.12.1, breaking the moving belt;
the moving belt rotates to a belt breaking position and stops, the belt is cut off, the length of the belt is shortened by 220 meters, and the part contains a serious damage part.
1.12.2 horizontal angular rotation of the moving head drive and base;
and the ground anchor of the mobile head station is connected and detached, the ground anchor is dug out and then filled, the mobile head station rotates to a required position at a horizontal angle, and the horizontal position of the driving platform is leveled.
1.12.3, moving and installing the ground anchor caisson with the movable head;
and after the position of the movable head station driving platform is placed, fixed and adjusted, the ground anchor caisson is moved and installed.
1.12.4, moving the movable belt conveyor (1700 m);
replacing or connecting broken track steel during the moving belt moving period; the damaged frame is replaced.
1.12.5, decomposing, transferring and installing the mobile W-end device and the infrastructure;
and after the mobile tail station bin and the driving device are disassembled, the mobile tail station bin and the driving device are hoisted to a fixed position to be placed and installed.
1.12.6, external belt transfer station, external belt head driving device and the disassembly, transfer and installation of foundation;
and the external belt head station is detached from the driving device, drives the roller, the bin and the tensioning device to be respectively hoisted to a fixed position for installation.
1.12.7, extending an external belt conveyor by 220 m;
and the external belt head station part is connected with the frame assembled before the moving after the installation is finished, and the center is leveled.
1.12.8, joint of vulcanized belt;
vulcanizing the moving belt: and after the moving and moving are finished and the tail station is assembled, paving partial belts, and vulcanizing 1 joint at the belt breakage position. Vulcanizing an external belt: and 2 extension belts are laid after the installation of the external belt head station and the assembly of the frame are finished, and the number of the vulcanization joints is 2.
1.12.9, adjusting and debugging a belt system;
and debugging the belt system equipment after the belt is moved.
1.13, the power distribution and control system is mobile.
1.13.1 construction process:
the method comprises the following steps of field junction box power failure → electric room power failure → mobile substation power failure → power cable dismantling → bridge dismantling → control, protection cable dismantling → junction box dismantling → electric room shifting → transformer shifting → junction box restoring → bridge restoring → control, protection cable restoring → power cable restoring → electric room, transformer foundation leveling → electric room, transformer positioning → grounding device installation → system debugging.
1.13.2 construction method:
the control, protection and power cables are numbered firstly, then the branch box is powered off, the electric room is powered off, the mobile substation is powered off, the branch box is dismantled, and the branch box is placed on the mobile belt after being dismantled. The control and protection cables are detached from each small junction box (the medical belt and the marking pen are used for making wiring marks, and at least two marks are arranged at the positions far away from the wiring side). And (3) dismantling the side bridge frame of the electric room, moving to change, leveling the foundation of the electric room, and towing the electric room.
And moving the belt tail station overhead bridge frame, recovering the junction box, recovering the wiring of the power cable, the control cable and the protection cable according to the prepared mark, and finally transmitting power and debugging.
1.14, leveling and resetting the external belt head station.
1.14.1 construction process:
cleaning the external belt head station → loosening the belt tensioning device and the anchor bolt → hoisting the external belt head station by a crane and leveling and aligning → recovering the anchor and the belt tensioning device → trial running.
1.14.2 construction method:
the method comprises the steps of cleaning up the floating soil below an external belt head station in advance, measuring the inclination degree of the head station by a level gauge, confirming the elevation height, loosening a belt tensioning device to enable a belt conveyor not to be pulled, loosening a ground anchor turnbuckle, hoisting the external belt head station by two 75-ton cranes, laying sleepers and stones with corresponding heights below the external belt head station, adjusting the levelness of a headstock, and recovering the ground anchor tensioning bolt and the belt conveyor tensioning device.
1.15, moving, externally connecting a belt and a belt foundation and adjusting deviation.
And 1.16, single-machine trial running and combined trial running debugging.
1.17, test production with materials.
Construction progress situation
First rising section
Second rising section
Claims (5)
1. An integral segment lifting method for a dumping machine and a displacement belt conveyor is characterized by comprising the following steps:
(1) a primary lifting section: taking the W end as a circle center, taking the length of the front part of the displacement type belt conveyor as a radius, and dumping and accumulating the soil along the S-N direction and the W-E direction by a dumping machine to form an inclined plane a gradually rising towards the S-N direction and the W-E direction integrally, wherein an inclined roadbed with a high E end and a low W end for the displacement type belt conveyor is paved at the upper end of the inclined plane a, the gradient of the inclined plane a is 10-15%, and the gradient of the inclined roadbed is 1-8%;
moving the dumping plough to the W end of the shift type belt conveyor, keeping the W end of the shift type belt conveyor relatively immobile, and enabling the front part of the shift type belt conveyor to move in a sector shape on the inclined plane a for a plurality of times along the S-N direction and continuously rise to the inclined roadbed;
(2) and (3) secondary ascending: on the basis of the primary lifting section, taking the end E as the center of a circle, taking the length of the rear part of the displacement type belt conveyor as the radius, dumping and stacking through a dumping machine to form an inclined plane b gradually rising towards the S-N direction and the E-W direction integrally, laying a horizontal roadbed for the displacement type belt conveyor to use at the upper end of the inclined plane b, and enabling the gradient of the inclined plane b to be 10-15%;
and moving the dumping plough to the end E of the displacement type belt conveyor, keeping the end E of the displacement type belt conveyor relatively immobile, and enabling the rear part of the displacement type belt conveyor to move in a sector-shaped manner on the inclined surface b for multiple times along the S-N direction and continuously rise to the horizontal roadbed.
2. The method of claim 1, wherein the displacement belt conveyor is moved by traction means.
3. The method of claim 2, wherein the displaceable belt conveyor is gradually laterally displaced by the traction means.
4. A method of making an integral rise section of a soil discharging machine and a displacement belt conveyor as claimed in claim 3, wherein the surface of the road, the inclined road and the horizontal road, over which the displacement is to be carried, is leveled, compacted and laid out to a hard ground with a crushed stone material to ensure that the ground is relatively level.
5. An earthmoving machine and method of integral rise of a displacement belt conveyor, as claimed in claim 1, wherein the belt conveyor to which the displacement belt conveyor is connected is correspondingly adjusted to enable mating connection.
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| CN202110800385.XA CN113443337A (en) | 2021-07-15 | 2021-07-15 | Integral section lifting method for dumping machine and displacement belt conveyor |
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Application publication date: 20210928 |