CN105645132A - Spiral chute lifting process - Google Patents
Spiral chute lifting process Download PDFInfo
- Publication number
- CN105645132A CN105645132A CN201511024269.4A CN201511024269A CN105645132A CN 105645132 A CN105645132 A CN 105645132A CN 201511024269 A CN201511024269 A CN 201511024269A CN 105645132 A CN105645132 A CN 105645132A
- Authority
- CN
- China
- Prior art keywords
- spiral chute
- spiral
- pipe
- straddle truck
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- B65G67/00—Loading or unloading vehicles
- B65G67/60—Loading or unloading ships
Abstract
The invention discloses a spiral chute lifting process which comprises the following steps: a lower platform of the spiral chute is previously welded on a device support which is installed, and positioning and welding of a circular base of the spiral chute are finished on the lower platform; one end of a connecting piece is fixedly connected with the upper end of a central circular tube of the spiral chute, and the other end of the connecting piece is hung on a hook of a gantry crane and controls the gantry crane to slowly lift the hook; the gantry crane carries the spiral chute to a place right above the installation position through the connecting piece and lowers the spiral chute; the central circular tube of the spiral chute is enabled to be inserted into the circular base; and the connecting piece and the upper end of the circular tube of the spiral chute are loosened. The spiral chute lifting process has the beneficial effects as follows: the labor productivity is improved, and the construction period is shortened; if the same number of workers are required to finish the same job, the days and labor hours required by the process are only 8% of those of the original process; and the labor intensity of the workers, the danger coefficient of the construction and the hidden cost are reduced.
Description
Technical field
The present invention relates to the application in ore-sorting system is built of the spiral chute lifting technique, it is adaptable to the construction work of ocean mining ore dressing integrated ship, marine ore dressing platform or ore dressing boats and ships.
Background technology
Spiral chute: a kind of gravity beneficiation equipment with the runner under screw, it is adaptable to sort the fine grain iron mine of granularity 0.02-0.3mm, ilmenite, chromite, troilite, zircon, rutile, monazite, phosphorus hundred million ore deposit, tungsten ore, cassiterite, tantalum ore, niobium minerals and have other non-ferrous metals of difference of specific gravity, rare metal and nonmetallic mineral. Spiral chute have sort process stabilization, be easily controlled, feed ore concentration allows that excursion is big, concentration ratio is high, the response rate is high, floor space is little, water consumption is few, simple in construction, without power, treating capacity is big, it is simple and easy, easy to operate to install, invest the advantages such as little instant effect.
Spiral chute is made up of PVC plastic, nylon plastic(s) or fiberglass, product deadweight is 200��400kg, diameter is 1200��1500mm, it is highly 3500��4200mm, equipment adopts hot jet welding, draw-in groove to connect or self-tapping screw connects, and the power that junction can be born is only small, therefore, use routine mode cannot colligation and wire rope handling lifting, otherwise very easily cause damage. Also without hanger or hoisting pad on equipment, reason is as follows: on the one hand, because the restriction of mounting means, is provided with hanger or eye plate can affect normal mounting; On the other hand, because the restriction of the strength of materials and connected mode, even if being provided with hanger or eye plate, also cannot guarantee to bear the weight of spiral chute itself, the careless slightly spiral chute that is likely to result in drops from eminence in lifting process, causes smashing badly damaged.
About the lifting problem in spiral chute installation, maintenance, Renewal process, the building berth of shipyard is provided with the straddle truck of 50t, 75t, because above-mentioned reason, so huge elevating capacity cannot be used for the equipment of lifting hundreds of kilograms unexpectedly, causes the resources of production to waste.
Existing is adopt a dead lift mode, and shortcoming is as follows: A, needs are artificial many, and human cost is high, and labor productivity is low. Article one, ocean mining ore dressing integrated ship, marine ore dressing platform or ore dressing boats and ships at least need to install hundreds spiral chute, building berth ground identity distance ore dressing podium level is about 14 meters, 3��4 people are needed during every chute carrying, it is transported to installation site need to walk the horizontal range of 150��200 meters, climb 2��3 inclined ladders, because equipment size is relatively big and without handgrip, passes through throughout and is inconvenient for.After carrying puts in place, position, hold up, fix and need to 4��5 people coordinate. Assume that carrying, installer merge to reuse, the installation of one spiral chute needs 5 individual labor 1 hour, i.e. 5 man-hours, 400 chutes of whole ship needed for 2000 man-hours, within 8 hours, calculate to work every day, this is that 5 workmans work 50 days continuously, or the workload that 10 workmans work 25 days continuously, does not count time of doing over again, rainy day and other ineffective time made mistakes once in a while. B, employing a dead lift, installation, the time that spiral chute is installed is very long, causes that berth period extends, more likely incurs loss through delay delivery. Labor strength is big, and construction risk coefficient is big. C, workers carry's large scale weight are walked on inclined ladder, ore dressing platform, not only expend very much muscle power, and are easy to the industrial accident such as falling from high altitude, weight rolling.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of spiral chute lifting technique, to solve prior art adopts a dead lift problems to equipment supporter.
To achieve these goals, technical scheme is as follows:
Spiral chute lifting technique, it is characterised in that comprise the following steps:
A, on mounted equipment supporter, weld the lower platform of spiral chute in advance, and on lower platform, complete the location of the round base of spiral chute, welding job;
B, spiral chute is transported by mounted equipment supporter;
C, connector one end fix the upper end connecting spiral chute center pipe, the other end of connector hangs on straddle truck hook, controls straddle truck slowly enhancing hook;
D, straddle truck move to the surface of installation site by connector with spiral chute and transfer;
When E, pipe lower end, spiral chute center are close to round base, adjusted the position of spiral chute horizontal direction by workman, make spiral chute center pipe lower end aligned round base, control straddle truck and transfer, make spiral chute center pipe be inserted in round base;
F, the upper end of connector Yu spiral chute center pipe is unclamped;
G, straddle truck return to lifting position, repeat the above steps C-F, lift next spiral chute.
Further, in stepb, adopting forklift transport spiral chute, fix the steel pipe of a suitable size on the prong of fork truck, during transport, make this steel pipe insert in the pipe of spiral chute center, manipulation fork truck lifts spiral chute and can transport.
Further, in step C, when straddle truck enhancing hook thus when promoting spiral chute, being lifted the lower end runner of spiral chute by workman, so as not to spiral chute liftoff after, the pressure that the part of spiral chute lower end runner and earth surface is born is excessive and damages.
Further, in step C, described connector is rope, makes a call to a bowline by rope in the upper end of spiral chute center pipe, puts rope in order and strain, and repeats and puts 3��4 becket bridles, again strains.
The invention has the beneficial effects as follows:
1, take full advantage of production equipment, decrease the dependence to manpower.
2, improve labor productivity, shorten construction period. If use equal number workman complete identical work, this technique need natural law and be only the 8% of original technique man-hour.
3, alleviate labor strength, reduce construction risk coefficient, decrease invisible cost.
4, it has been effectively ensured delivery date, boats and ships can be made faster to go into operation.
The feature of the present invention see the detailed description of following better embodiment and obtains and be well understood to.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, the present invention is expanded on further below in conjunction with specific embodiment.
Spiral chute lifting technique, it is characterised in that comprise the following steps:
1, the welding job of spiral chute lower platform (maintenance platform) on preparation equipment support is completed; Complete the location of spiral chute round base on preparation equipment support, welding job, and check errorless in conjunction with drawing.
2, by fork truck, the spiral chute preparing lifting is transported on building berth. For avoiding contingent damage in forklift transport process, overlapping the steel pipe of a suitable size and be welded and fixed on the prong of fork truck, during transport, making this steel pipe insert in the pipe of spiral chute center, manipulation fork truck lifts spiral chute and can transport.
3, prepare a diameter and be about the rope of 25mm.
4, go out to make a call to a bowline near charging box in the upper end of spiral chute center pipe, put rope in order and strain, repeating and put 3��4 becket bridles, again strain.
5, the other end of rope is hung on straddle truck hook, straddle truck operative employee slowly enhancing hook. Meanwhile, the workman on building berth lifts the lower end runner of spiral chute, so as not to upper end liftoff after, the pressure that the part of lower end runner and earth surface is born is excessive and damages.
6, after completing lifting, straddle truck moves to the surface of installation site with spiral chute, and toward transferring after slightly stopping, the workman near installation site commands straddle truck operative employee according to locus situation in the process transferred.
7, when pipe lower end in spiral chute center is close to round base, workman near installation site adjusts the position of spiral chute horizontal direction, make spiral chute center pipe lower end aligned round base, and command straddle truck operative employee slowly to transfer so that it is be inserted in round base.
8, untiing knot, straddle truck returns to lifting position, prepares to lift next spiral chute. The direction of the workman's rotary screw chute in installation site so that it is meet installation requirement.
If 9 prepare 3 ropes of 2 lower end runner, after straddle truck hangs a spiral chute, start, to next spiral chute tether knot preparing lifting, work efficiency to be improved.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described. Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; simply principles of the invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within claimed the scope of the present invention. The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (4)
1. spiral chute lifting technique, it is characterised in that comprise the following steps:
A, on mounted equipment supporter, weld the lower platform of spiral chute in advance, and on lower platform, complete the location of the round base of spiral chute, welding job;
B, spiral chute is transported by mounted equipment supporter;
C, connector one end fix the upper end connecting spiral chute center pipe, the other end of connector hangs on straddle truck hook, controls straddle truck slowly enhancing hook;
D, straddle truck move to the surface of installation site by connector with spiral chute and transfer;
When E, pipe lower end, spiral chute center are close to round base, adjusted the position of spiral chute horizontal direction by workman, make spiral chute center pipe lower end aligned round base, control straddle truck and transfer, make spiral chute center pipe be inserted in round base;
F, the upper end of connector Yu spiral chute center pipe is unclamped;
G, straddle truck return to lifting position, repeat the above steps C-F, lift next spiral chute.
2. spiral chute lifting technique according to claim 1, it is characterized in that, in stepb, adopt forklift transport spiral chute, the prong of fork truck is fixed the steel pipe of a suitable size, during transport, making this steel pipe insert in the pipe of spiral chute center, manipulation fork truck lifts spiral chute and can transport.
3. spiral chute lifting technique according to claim 2, it is characterized in that, in step C, when straddle truck enhancing hook thus when promoting spiral chute, the lower end runner of spiral chute is lifted by workman, in order to avoid spiral chute liftoff after, the pressure that the part of spiral chute lower end runner and earth surface is born is excessive and damages.
4. spiral chute lifting technique according to claim 3, it is characterised in that in step C, described connector is rope, makes a call to a bowline by rope in the upper end of spiral chute center pipe, puts rope in order and strain, repeat and put 3��4 becket bridles, again strain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024269.4A CN105645132A (en) | 2015-12-30 | 2015-12-30 | Spiral chute lifting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511024269.4A CN105645132A (en) | 2015-12-30 | 2015-12-30 | Spiral chute lifting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105645132A true CN105645132A (en) | 2016-06-08 |
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ID=56490894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511024269.4A Pending CN105645132A (en) | 2015-12-30 | 2015-12-30 | Spiral chute lifting process |
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| Country | Link |
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| CN (1) | CN105645132A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002167168A (en) * | 2000-12-05 | 2002-06-11 | Ishikawajima Harima Heavy Ind Co Ltd | Self-propelled portal container crane and container ship |
| CN101928577A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Installation method of coke dry-quenching discharging device |
| TW201323306A (en) * | 2011-12-01 | 2013-06-16 | Mitsubishi Heavy Ind Ltd | Continuous unloader |
| CN103171885A (en) * | 2013-03-14 | 2013-06-26 | 中国华冶科工集团有限公司 | Back turning buffer chute and installation method thereof |
| CN103342219A (en) * | 2013-07-31 | 2013-10-09 | 中建六局工业设备安装有限公司 | Land transportation method for large object |
-
2015
- 2015-12-30 CN CN201511024269.4A patent/CN105645132A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002167168A (en) * | 2000-12-05 | 2002-06-11 | Ishikawajima Harima Heavy Ind Co Ltd | Self-propelled portal container crane and container ship |
| CN101928577A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Installation method of coke dry-quenching discharging device |
| TW201323306A (en) * | 2011-12-01 | 2013-06-16 | Mitsubishi Heavy Ind Ltd | Continuous unloader |
| CN103171885A (en) * | 2013-03-14 | 2013-06-26 | 中国华冶科工集团有限公司 | Back turning buffer chute and installation method thereof |
| CN103342219A (en) * | 2013-07-31 | 2013-10-09 | 中建六局工业设备安装有限公司 | Land transportation method for large object |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160608 |
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| RJ01 | Rejection of invention patent application after publication |