CN104138836B - A kind of big particle diameter earth material oversize stone device for eliminating - Google Patents
A kind of big particle diameter earth material oversize stone device for eliminating Download PDFInfo
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- CN104138836B CN104138836B CN201410351594.0A CN201410351594A CN104138836B CN 104138836 B CN104138836 B CN 104138836B CN 201410351594 A CN201410351594 A CN 201410351594A CN 104138836 B CN104138836 B CN 104138836B
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Abstract
The invention discloses a kind of big particle diameter earth material oversize stone device for eliminating, including Bar strip type oscillating feeder and screening building；Screening building is divided into three floor, is respectively by the bed of material, mechanical floor from top to bottom and goes out the bed of material；By hopper is provided with the bed of material, hopper lower end is provided with top discharge mouthful；Mechanical floor is provided with Bar strip type oscillating feeder, and the charging of Bar strip type batcher is rectified to top discharge mouthful；Mechanical floor is provided with lower discharge port, and lower discharge port is just to Bar strip type batcher discharging opening；Go out and discharging bin is provided with the bed of material, discharging bin is located at immediately below lower discharge port.Invention significantly increases the rejecting efficiency of big particle diameter earth material oversize stone, quality is rejected well while also ensure that.Structure also highly stable reliability, installation and debugging are efficient and convenient.Earth material maximum particle diameter can be controlled in allowed band, grinding compacting, so as to obtain compactness and preferable anti-seepage effect higher, practical, high financial profit.
Description
Technical field
The present invention relates to earth material process field, and in particular to a kind of big particle diameter earth material oversize stone device for eliminating.
Background technology
With the development of construction technique of earth and rock dam, building with the earth-rock works of design planning to large-scale, huge development, such as
The waxy common wheat earth-rock works built up, height of dam 261.5m fills total amount for 33,500,000 m3.In the sill may power station master long for building
Body dam is similarly earth-rock works, and height of dam reaches 240m, fills total amount for 3436.06 ten thousand m3, following newly-built earth-rock works
Larger, such as two river mouths, height of dam reaches 298m, and double Jiangkou heights of dam reach 305m, and its reclamation work amount is bigger.In earth-rock works high
Dam material in, seepage prevention of core wall body is typically using natural or manually mixes the rubble earth material matched somebody with somebody.The maximum particle diameter of earth material with fill paving
Soil thickness and compaction capacity relation are extremely sensitive and close, it is necessary to by the control of its maximum particle diameter in allowed band, earth material ability
Grinding compacting, so as to obtain compactness and preferable anti-seepage effect higher.
Due to expecting proper mass skewness, different zones gravel earth material oversize stone changes of contents in stock ground in most stock ground
Larger, few earth material does not contain oversize stone, is that this rejecting to earth material oversize stone is critical process that earth and rockfill dam is filled.Generally
Oversize stone oversize stone is carried out using the method for manual sorting and gravity separation to reject, artificial demand is larger, and oversize stone is rejected
Quality be cannot be easily managed, and oversize stone is rejected using gravity separation, and aggregate can be easily separated, and quality of earth material is difficult to obtain guarantee.
The content of the invention
The invention provides a kind of big particle diameter earth material oversize stone device for eliminating, it is advantageously ensured that oversize stone is rejected quality and is carried
Height rejects efficiency.
To solve above-mentioned technical problem, the present invention uses following technical scheme：A kind of big particle diameter earth material oversize stone is rejected
Device, including Bar strip type oscillating feeder and screening building；Screening building is divided into three floor, is respectively receives the bed of material, mechanical floor from top to bottom
With go out the bed of material；By hopper is provided with the bed of material, hopper lower end is provided with top discharge mouthful；Mechanical floor be provided with Bar strip type vibrate to
Material machine, Bar strip type oscillating feeder charging is rectified to top discharge mouthful；Mechanical floor is provided with lower discharge port, and lower discharge port is just to Bar strip type
Oscillating feeder discharging opening；Go out and discharging bin is provided with the bed of material, discharging bin is located at immediately below lower discharge port.
Improved as one kind：The side by the bed of material is provided with takes off material platform, takes off material platform adjacent with hopper.
As further improving：The model ZSW2160 of the Bar strip type oscillating feeder, 10 ° of its screen angle；
Rod length 3.5m, rod amerism, elongated arrangement, rear end clear distance 120mm, front end clear distance 150mm.
The beneficial effects of the invention are as follows：Invention significantly increases the rejecting efficiency of big particle diameter earth material oversize stone, while
Also ensure that and reject quality well.Structure also highly stable reliability, installation and debugging are efficient and convenient.Earth material maximum particle diameter can be controlled
In allowed band, grinding compacting, so as to obtain compactness and preferable anti-seepage effect higher, practical, economic benefit
It is high.
Brief description of the drawings
Fig. 1 is the schematic diagram of big particle diameter earth material oversize stone device for eliminating.
In figure：1- feeding cars；2- takes off material platform；3- hoppers；4- top discharges mouthful；5- Bar strip type oscillating feeders；6- cuts
Power wall；7- discharging loading machines；8- sieves platform；9- lower discharge ports；10- receives the bed of material；11- mechanical floors；12- goes out the bed of material.
Specific embodiment
To meet the composite request of earth material oversize rejecting, it is impossible to directly use for reference existing oversize stone and reject experience, it is necessary to pin
The rejecting technique special to concrete engineering the characteristic study, and build the fixed oversize stone eliminating system of scale.The present invention is with soup dam
It is described as a example by engineering, concrete scheme research and design process include scale design, System planes arrangement, place election and cloth
Put, sieve building horizontal layout and screening building structure.
1st, scale design
（1）Calculating parameter
Filling ontensity：The gravelly soil peak period average m3/ months of filling ontensity 210,000（Compacting side）；
Fill dry density：Taken large values 2.14g/cm3 according to earth material filling building technical requirements；
Earth material average moisture content：Take 10%；
Construction unbalance factor：Take 1.3；
The average working time moon：25 days × 14 hour/day=350 hour；
Earth material yield rate (sieve, store up, transporting equal loss and oversize content by consideration）:85%.
（2）System production capacity
Finished product production capacity：210000×2.14（1+10%）× 1.3 ÷ 350=1836t/h, take 2000t/h；
Sieving production capacity（Raw material production capacity）：2000 ÷ 85%=2353t/h, take 2500t/h.
（3）Number of devices
According to result of the test, sieving production capacity of the batcher under general operating mode is 538t/h, then system equipment number of units is：
2500 ÷ 538=4.6 platforms, take 5.
Production capacity also improves after equipment technology reconstruction, can also improve production capacity by extending run time in addition, these
Can be used as the rich deposit of the production capacity of system.
Proper mass distribution situation is expected according to stock ground, earth material combines different earth materials in digging process from top to bottom in exploiting field（Slightly,
Thin and qualified material）Reserves in recovery process, plan two equipment and are rejected as the oversize stone of qualified material, an equipment conduct
The oversize stone of fines is rejected, and an equipment is rejected as the oversize stone of coarse fodder, and a remaining equipment is used as regulation.
2nd, System planes arrangement
（1）System site location should be close proximity to stock ground, it is to avoid around fortune, prevents oversize material long-distance transportation, favourable to reduce
Expense.
（2）System arrangement facilitates traffic line tissue, forms recycle circuit, and charging is misaligned with discharging circuit, it is to avoid dry
Disturb.
（3）Site area should meet 5 sets of screening building arrangements and all charging vehicles and discharging vehicle are accommodated when running simultaneously
The requirement of entrucking, will also there is certain finished product material transferring storage place, meet the permanent stocking requirements of oversize waste material.
（4）Technique is rejected according to oversize, system by material feeding, sieve, discharge, store up（Have that materials transfer is stored up and oversize is useless
Stockpile is deposited）A few procedure step arrangements.Site topography is preferably conducive to the step of system to arrange, reduces excavation and filling quantities.
（5）Place elevation must meet the big flood control standard for facing building.
3rd, place election and arrangement
This engineering selects screening system to lean on mountain arrangement near river bank under soup dam earth material mountain, on the one hand can make full use of
On the other hand flood land can utilize gentle slope landform arrangement material feeding platform and the outfeed platforms near river shoal as stockyard.In addition, opening
Exploiting field to the road of system material feeding platform is arranged along mountain, and can lead to the road of material feeding platform from upstream and downstream arrangement respectively, and mistake
Discharging road after sieve arranges that traffic line is not only smooth but also does not disturb along river shoal.
The m2 of the total floor space of system about 5.5 ten thousand, wherein material feeding platform respectively account for 6500m2 with screening platform, there is materials transfer heap
Field 2.5 ten thousand m2, the m2 of oversize material stockyard 1.7 ten thousand.
Because Tang Ba streams do not have hydrological data, existing building determines system in historic flood level and ditch by inquiry
The flood control elevation on ground.The system is to store up field by flood threat, and padded flood control is reached without materials backfill using what the piece of smooth land was excavated
It is required that.
4th, building horizontal layout is sieved
Useful earth material is poured out using installation under rejecting the sieve of oversize, is calculated according to experiment, and a bar screen at least needs two
The batch turning simultaneously of platform loading machine could meet requirement.Combining with terrain condition, 5 screening buildings are arranged in in-line, net between screening building
Meet the operation simultaneously of two loading machines away from palpus.Screening berm width should also meet the requirement of 5 screening buildings entrucking simultaneously.
5th, building structure is sieved
The height for sieving building determines material feeding platform with the screening platform discrepancy in elevation（Screening platform is outfeed platforms）, including by the bed of material
10（That is hopper depth）, mechanical floor 11（Bar screen mounting layer）, go out the bed of material 12（Loading machine discharging entrucking）.
Screening building structure uses the warp such as armored concrete boxboard typed overall structure, board wall thickness, quantity of reinforcement, concrete grade
Calculating must meet intensity and stability requirement under least favorable operating condition, meanwhile, building body will also check it as earth-retaining wall function
Stability.
Hopper 3 meets the discharging simultaneously of 2 cars, and dead volume is not less than 100 m3, and volume living is not less than 50 m3, to ensure
Continuous feeding.
The height decapacitation of mechanical floor 11 is met outside advancing equipment, must also meet the requirement of the operating spaces such as equipment replacement, maintenance.
Go out the height of the bed of material 12 and meet loading machine discharge space requirement, if other discharge methods（Such as belt）Separately examine
Consider.
By said process, desired big particle diameter earth material oversize stone device for eliminating is met so as to design, obtain quality and close
The gravel earth material of lattice.
As shown in figure 1, the present invention includes Bar strip type oscillating feeder 5 and screening building；Screening building is divided into three floor, from top to bottom
Respectively receive the bed of material 10, mechanical floor 11 and go out the bed of material 12；By hopper 3 is provided with the bed of material 10, the lower end of hopper 3 is provided with out
Material mouth 4；Mechanical floor 11 is provided with Bar strip type oscillating feeder 5, and the charging of Bar strip type oscillating feeder 5 is rectified to top discharge mouthful 4；If
Standby layer 11 is provided with lower discharge port 9, and lower discharge port 9 is just to the discharging opening of Bar strip type oscillating feeder 5；Go out in the bed of material 12 and be provided with discharging
Storehouse, discharging bin is located at immediately below lower discharge port 9.
The big particle diameter earth material oversize stone device for eliminating applicable elements：（1）Earth material maximum particle diameter is required；（2）Screening building
Structure is used as mounting bracket.Big particle diameter earth material oversize stone device for eliminating feature：（1）Stability Analysis of Structures, reliability；（2）Bar strip type is vibrated
Batcher is easy to connect, quick with screening building；（3）Be conducive to the control of quality of earth material；（4）Oversize stone rejects efficiency high, economical
Property is good.Big particle diameter earth material oversize stone device for eliminating structural representation is as shown in Figure 1.
It is as follows to big particle diameter earth material oversize stone device for eliminating structure design with reference to earth material material property：
（1）Using hopper 3 as reinforced concrete structure, form is adjusted to box-structure, funneling blanking.Hopper 3
Capacity meets continuous feeding requirement, and with certain pondage, the size suitable for reading of hopper 3 meets the discharging simultaneously of two cars.Material feeding system
System setting is taken off and expects platform 2, and material, clear plate are dredged using small tonnage excavator when putty, haftplatte, and taking off material platform 2 position should not disturb certainly
Automobile is unloaded to normal discharging in hopper.
（2）Screening building is reinforced concrete structure, and globality is strong, firm durable.
（3）From the Bar strip type oscillating feeder of model ZSW2160, and suitably adjusted.
1. screen angle is increased, setting angle is adjusted to 10 ° of maximum；
2. rod length is adjusted to 3.5m by original design 2.4m, and the total length of equipment keeps constant；
3. rod amerism, elongated arrangement, while the plane included angle between rod is reduced, rear end clear distance 120mm, front end
Clear distance 150mm（Rear end clear distance is the distance between two rods of Bar strip type oscillating feeder feed end furthest apart, front end clear distance
The distance between two rods for Bar strip type oscillating feeder discharge end furthest apart）.
Additionally, in the present invention：
（1）The height for sieving building determines material feeding platform with the screening platform discrepancy in elevation（Screening platform is outfeed platforms）, including receive
The bed of material 10（That is hopper depth）, mechanical floor 11（Bar screen mounting layer）, go out the bed of material 12（Loading machine discharging entrucking）.
（2）Screening building structure uses armored concrete boxboard typed overall structure, board wall thickness, quantity of reinforcement, concrete grade
Etc. the intensity and stability requirement that are computed meeting under least favorable operating condition, meanwhile, building body will also be tested as earth-retaining wall function
Calculate its stability.
（3）, it is necessary to match with oversize stone device for eliminating screening building inside configuration is pre-buried in building construction process is sieved
Built-in fitting.
（4）It is connected firmly between built-in fitting and oversize stone device for eliminating.
In the specific implementation, in addition it is also necessary to note following item：
（1）The installation of concrete, reinforcing bar and built-in fitting is carried out according to drawing requirement.
（2）Equipment is hoisted to installation position using two 25T cranes levels, in strict accordance with design requirement in installation process
Installed.
（3）Field observation is carried out during the rejecting of earth material oversize stone oversize stone, earth material should not be excessive in hopper 3, makes
Damaged into overload operation and fouling equipment.
（4）Oversize stone according to oversize stone oversize stone device for eliminating is rejected efficiency and determines the phase that every screening plant is configured
Answer construction machinery.
Current big particle diameter earth material oversize stone device for eliminating has made, installation, and in the oversize of sill may gravelly soil material long
The formal input utilization during rejecting of stone oversize stone.With result surface, screening building structure and earth material oversize stone device for eliminating set
Meter meets earth material particle diameter oversize stone and rejects requirement, and earth material particle diameter oversize stone rejects efficiency high, and it is good that oversize stone rejects quality.In the recent period
Testing inspection result surface during dam filing, gravel earth material maximum particle diameter is in design requirement（150mm）Within scope.
Claims (1)
1. a kind of big particle diameter earth material oversize stone device for eliminating, it is characterised in that：Including Bar strip type oscillating feeder (5) and screening
Building；Screening building is divided into three floor, is respectively by the bed of material (10), mechanical floor (11) from top to bottom and goes out the bed of material (12)；By the bed of material (10)
Hopper (3) is inside provided with, hopper (3) lower end is provided with top discharge mouthful (4), and hopper (3) meets the discharging simultaneously of 2 cars, extremely
Volume is not less than 100m3, volume living is not less than 50m3；Mechanical floor (11) is provided with Bar strip type oscillating feeder (5), mechanical floor
(11) the operating space requirement of advancing equipment, more exchange device, repair apparatus can highly be met；Bar strip type oscillating feeder (5) enters
Material is rectified to top discharge mouthful (4)；Mechanical floor (11) is provided with lower discharge port (9), and lower discharge port (9) is just to Bar strip type oscillating feeder
(5) discharging opening；Go out and discharging bin is provided with the bed of material (12), discharging bin is located at immediately below lower discharge port (9)；The Bar strip type vibration
The screen angle of batcher (5) is 10 °；Rod length is 3.5m, rod amerism, elongated arrangement, rear end clear distance 120mm, preceding
End clear distance 150mm, rear end clear distance is the distance between two rods of Bar strip type oscillating feeder (5) feed end furthest apart, preceding
End clear distance is the distance between two rods of Bar strip type oscillating feeder (5) discharge end furthest apart；Screening building structure uses steel
Reinforced concrete boxboard typed overall structure, the screening building is 5, and is arranged in in-line；It is provided with by the side of the bed of material (10)
Material platform (2) is taken off, material platform (2) is taken off adjacent with hopper (3).
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| CN201410351594.0A CN104138836B (en) | 2014-07-23 | 2014-07-23 | A kind of big particle diameter earth material oversize stone device for eliminating |
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| CN201410351594.0A CN104138836B (en) | 2014-07-23 | 2014-07-23 | A kind of big particle diameter earth material oversize stone device for eliminating |
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| CN104138836B true CN104138836B (en) | 2017-05-31 |
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| CN101104172B (en) * | 2007-08-05 | 2010-04-14 | 陆洋 | Large granules vibrating sizing screen |
| JP4779034B2 (en) * | 2009-04-29 | 2011-09-21 | 株式会社 丸 七 製 作 所 | Granular material milling machine |
| CN101693238B (en) * | 2009-10-29 | 2012-06-27 | 沙健 | Screening device for a plurality of single grade size of rock material and screening method thereof |
| CN102921641A (en) * | 2012-10-25 | 2013-02-13 | 山西恩必讴重工有限公司 | Large-grained ore sorting machine |
| CN203944549U (en) * | 2014-07-23 | 2014-11-19 | 中国水利水电第五工程局有限公司 | A kind of large particle diameter earth material oversize stone device for eliminating |
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