CN104858048B - The environmental friendly regenerated processing method of earth pressure balanced shield, EPBS dregs and equipment - Google Patents
The environmental friendly regenerated processing method of earth pressure balanced shield, EPBS dregs and equipment Download PDFInfo
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- CN104858048B CN104858048B CN201510228018.1A CN201510228018A CN104858048B CN 104858048 B CN104858048 B CN 104858048B CN 201510228018 A CN201510228018 A CN 201510228018A CN 104858048 B CN104858048 B CN 104858048B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
The invention provides the earth pressure balanced shield, EPBS dregs processing method and equipment of novelty.In the present invention, water is that complete closed cycle is utilized, so new water need to be added in system in producing initial stage only, after production is stable, no longer consumption of new water substantially.Even when the dregs water content that shield is discharged is high, periodically/outer a part of tail water drained in reservoir at any time is also needed.Because eventually serving as the reduction of the dregs amount of waste residue output, cost of floor space is saved.Mud cake after pressure filter dehydration has certain value, is more suitable for landfill (especially backfilling) or directly discharges (for example pile up) processing；The making of brick and tile is can be used for, reduces the destruction and consumption of arable land or resource.The recycling of sand material, correspondingly reduces Environmental costs caused by equivalent sandstone excavation institute.The present invention has prominent resource, environmental benefit and economic benefit.
Description
Technical field
The present invention relates to earth pressure balanced shield, EPBS dregs processing method and equipment, for the environmental friendly regenerated utilization of dregs.
Background technology
At present, at home in subway and various constructing tunnels, widely used earth pressure balanced shield, EPBS driving technology.The driving
The features such as method has fast soil layer wide accommodation, driving speed, low cost, construction safety.According to relevant information introduction, one
Line, two wires big city, often have up to a hundred balancing earth-pressure shielding machines to carry out various tunnel constructions at the same time, and the whole nation there are about
800 balancing earth-pressure shielding machines are in work.But, as subway tunnel is typically all in two, 30 meters of underground, or even tens meters
Depth, so the dregs (" dregs " herein all refers to the dregs that EPB shield tunneling is discharged) that EPB shield tunneling is discharged all can be containing big
Amount moisture, even in half flow regime.If not carrying out separating treatment and dehydration to dregs, can be to defeated bringing be raftinged outside dregs
Greatly inconvenience, cost of transportation are high, and shipment efficiency is low, spill pollution road, dregs cannot heap it is high, occupied ground is big.Due to place
The discharge of government and environmental administration to dregs is strictly limited, and being normally carried out of construction is restricted.
1st, in the past, the dregs that earth pressure balanced shield, EPBS digs out is substantially using the place for directly transporting to appointed place stacking or fill
Reason method.Now by taking certain subway earth pressure balanced shield, EPBS engineering (hereinafter referred to as " certain engineering ") as an example, to dregs processing cost and drawing
The pollution condition for rising is illustrated.
(1) dregs discharge cost of transportation is high.In certain engineering, wherein certain bid section total length is 2.4km, diameter 6.28
The bifilar tunnel of rice, will produce the loose dregs of about 9.7 ten thousand steres.Calculate by 75 yuan of dregs freight charges of every cube of discharge,
These dregs are transported and take around 7,280,000 yuan of freight charges.If 24 kilometers of long subways, dregs freight charges are up to 70,000,000
It is more than unit.
(2) dumping dregs needs to take a large amount of stacking places, costly.If by above-mentioned 9.7 ten thousand stere dregs heap
It is placed on the ground of 1 hectare (15 mu, 10,000 square meters), needs heap high 9.7 meters.Same as above, 24 kilometers of long subways give up
It is high 9.7 meters that waste soil is accomplished by the heap on 150 mu of soils.
(3) dregs water content is high.The dregs that earth pressure balanced shield, EPBS digs out has up to more than 40% water content, sometimes even
Semi-fluid state is presented.Due to containing clay component in dregs, these moisture will not be separated with dregs rapidly.Such height contains
If water yield dregs is transported with general lorry, seriously can spill in transit, as environmental administrations at different levels nearly all limit
Dregs (such situation is of common occurrence) as system discharge, project progress is often had a strong impact on and engineering cost is corresponding
Improve.
2nd, shown according to available data, in the dregs that certain engineering is dug out, about 1/3rd sandstone are recyclable
The inorganic raw material for utilizing.In 2.4 kilometers of engineerings, the useful sand material of 3.2 ten thousand steres is there are about, value is up to 3,200,000 yuan.
In 24 kilometers of subway engineerings, then contain the useful sandstone material for being worth more than 30,000,000 yuan.
But, due to the high-moisture of dregs, common screening is difficult to sieve the dregs composition of different-grain diameter, especially
Which is that sieve aperture is easily blocked by the clay component (mud) of High water cut.
It can be seen that, problem encountered, neither the separation of simple different-grain diameter composition, nor simple dehydration, also
Can not be the process of " first dehydration, sieve again " (because to both bulky grain compositions containing 20 to 200mm, while and containing clay
The dregs of composition is difficult to fast dewatering.)
The economic, social of these problems, Significance for Environment, are not limited in above-mentioned.Capital construction occupies very big in China's economy
Proportion.The always huge challenge of the resource consumption of the production of construction material；In some places, building materials are fired and are fetched earth, cause
The destruction of large-area cultivated land resource；In other places, the endocrator for adopting that sand is left can be seen often.It is distinct with this formation anti-
It is poor, in the periphery in many cities, but there are many huge dregs heaps, wherein trees, table have been planted in many tops
Bright these dregs heaps are by as permanent accumulation.The soil of surrounding city, no matter using as arable land or as building
Ground, is all extremely precious, let alone the accumulation of dregs is unstable, is susceptible to landslide, and serious dust pollution
Source.If not having no alternative, being will not be the soil of surrounding city for stacking dregs.
While being to fetch earth and destroy large quantities of arable lands and territory to obtain sandstone, brickmaking, another side is then to dispose base
Build dregs and take a large amount of preciousness soils, cause the main cause of such case, be that problem is reclaimed in the sorting of dregs itself, which was both
Technical limitation is shown as, is also embodied in low in efficiency.Bricks and Tiles Plant will necessarily addressing with building clay distribution in (substantially
All it is high-quality arable land), the cost of long-distance transport clay to take clay on the spot, is both eliminated, sorting is saved or reduce again former
The cost of material (clay).Equally, sandpit certainty addressing in the position of high-quality sandstone ore deposit, if the available sandstone in a battle field contain
Amount is relatively low, and just business is not dug and adopts value.So, the recycling of dregs, compared with clay, " exploitation " of sandstone, in economy
It is subjected to inferior position in benefit, this inferior position is the restraining factors for affecting dregs to recycle.
At present, the actual treatment method of some construction parties, is that these dregs are stacked, after its dehydration, then which is entered
Row screening etc. is separated；Some places are piled up to the dregs of surrounding city really carries out separation reprocessing, therein viscous by sieving
The sandstone of soil and different-grain diameter, carry out the recycling of dregs, and correspondingly reduce accumulation taking up an area.But such way is that have tight
Weight problem, including：
1) first, dregs (possibly semi-fluid) is transported to aheap from building site, difficulty in transportation technology, is dropped
All it is problem and restriction；
2) piling up needs occupied ground；
3) because the dewatering speed of clay component is very slow, need very big stacking area meet dehydration and require；
4) moisture in dregs contains the compositions such as shield agent, and stacking dehydration can make these contain the infiltration of the moisture of shield agent certainly
So water body, causes corresponding pollution to the latter；
5) due in dregs clay component mix with sandstone composition, some small bits of clay can be bonded in sand particles
On；These are bonded in the clay component on sand particles and can not be separated with sand particles by screening, so what screening was obtained
Containing the clay component being bonded on sand particles in sandstone；Such sandstone poor quality, or even construction cannot be met
Require.For example, if such sandstone is used in concrete, the intensity of concrete seriously can be reduced, or even cannot meet and set
Meter is required.
6) such process will be through steps such as " transport-accumulation-(dehydration)-screening-entrucking-transports ", link mistake
It is many.
These problems result in the high cost of " piling up-reprocessing ", recycles deficiency in economic performance, and has correlation
Natural water pollution problem.Many places would rather also be reluctant to do subsequent treatment to the dregs piled up permanence is piled up, and be exactly this
Plant " piling up-reprocessing " too poor direct embodiment of economic benefit.
To territory, environmental resource these directly injure or waste, protrusion reflects the contradiction of construction and development,
Indicate the social benefit for reclaiming dregs：Side's dregs is recycled per more, be equal to few side arable land fetch earth, a few side river course
Dig a husky, few side and pile up and take up an area.
Therefore, be badly in need of a kind of effective solution, effectively and rapidly in-situ processing is carried out to above-mentioned dregs.
The content of the invention
According to an aspect of the invention, there is provided a kind of earth pressure balanced shield, EPBS dregs processing method, the dregs is soil
The dregs that pressure shield machine is discharged, it is characterised in that include：
With the drag conveyor for being seated in the sub-material storehouse bottom with bottom opening, continuously will fall from the sub-material storehouse
Dregs send into primary vibration sieve, and by drag conveyor priming apparatus to drag conveyor shower water, by primary vibration
Sieve priming apparatus sieves upper shower water to primary vibration, to be diluted to dregs；
The first slurry storage tanks of siftage Jing that primary vibration is sieved send into the first agitator；
Mud Jing after the stirring of the first agitator is pumped into secondary vibration sieve with the first slurry；
Priming apparatus is sieved to the upper shower water of secondary vibration sieve by secondary vibration, the dregs on secondary vibration sieve is carried out dilute
Release；
The oversize that secondary vibration is sieved is dropped down onto slag field；
Under the sieve sieved by secondary vibration, serosity sends into the second slurry storage tank；
The serosity of the second slurry storage tank is pumped into one-level cyclone with the pressurization of the second Pulp pump；
The overflow portion of the serosity Jing after one-level cyclone classification is sent into the second agitator, Jing one-level cyclone classifications
Send into sand washer in the underflow part of serosity afterwards；
Added water with sand washer priming apparatus sand washer, the underflow part of the serosity is washed, and after washing
Particulate matter sends into three-level vibrosieve；
By three-level vibrosieve priming apparatus to shower water in three-level vibrosieve, the particulate matter in three-level vibrosieve is carried out
Dilution；
Serosity under the sieve of three-level vibrosieve is sent into second slurry storage tank, to proceed circulation point to serosity under the sieve
Level；
The overflow portion of the serosity of sand washer is sent into second agitator；
Agitated serosity in second agitator is pumped into second cyclone with the pressurization of the 3rd Pulp pump, to carry out point
Level；
Overflow slurry after second cyclone is classified is sent into the 3rd agitator, wherein the 3rd agitator and the
Two agitators are to connect on top, i.e. low concentration serosity in the second agitator can be overflowed in the 3rd agitator from top；
Low concentration serosity after agitated in 3rd agitator is pumped into the first agitator with the 4th slurry, so as to
Dilute the mud in the first agitator；
The bottom slurry of second cyclone is sent into the 4th agitator；
Serosity after agitated in 4th agitator is pumped into pressure filter with barrier film carries out filter-press dehydration.
According to another aspect of the present invention, there is provided a kind of earth pressure balanced shield, EPBS dregs processing equipment, the dregs is
The dregs that earth pressure shield tunneling machine is discharged, it is characterised in that include：
The drag conveyor of the sub-material storehouse bottom with bottom opening is seated in, for continuously falling from the sub-material storehouse
Under dregs send into primary vibration sieve；
Drag conveyor priming apparatus, for drag conveyor shower water, to be diluted to dregs；
Primary vibration sieves priming apparatus, for the upper shower water of primary vibration sieve, to be diluted to dregs；
First slurry storage tank, the siftage for primary vibration is sieved send into the first agitator；
First agitator；
First Pulp pump, for the mud after first agitator stirring is sent to secondary vibration sieve；
The secondary vibration sieve；
Secondary vibration sieves priming apparatus, for the upper shower water of secondary vibration sieve, carrying out to the dregs on secondary vibration sieve
Dilution；
Second slurry storage tank, for receiving serosity under the sieve that secondary vibration is sieved；
Second Pulp pump, for the serosity pressurization in the second slurry storage tank is pumped into one-level cyclone；
One-level cyclone, for being classified to above-mentioned serosity,
Second agitator, for receiving by the overflow portion of the serosity of one-level cyclone classification,
Sand washer, the underflow part of its serosity of the reception Jing after one-level cyclone classification；
Sand washer priming apparatus, for adding water to sand washer, washs to the underflow part of the serosity；
Three-level vibrosieve, which receives the particulate matter after washing；
Three-level vibrosieve priming apparatus, for shower water in three-level vibrosieve, entering to the particulate matter in three-level vibrosieve
Row dilution, wherein
Under the sieve of three-level vibrosieve, serosity is admitted to second slurry storage tank, to proceed circulation point to serosity under the sieve
Level,
The overflow portion of the serosity of sand washer is sent into second agitator,
3rd Pulp pump, for the agitated serosity pressurization in the second agitator is pumped into second cyclone, to carry out
Classification；
3rd agitator, its receive through second cyclone classification after overflow slurry, wherein the 3rd agitator with
Second agitator is to connect on top, i.e. low concentration serosity in the second agitator can overflow to the 3rd agitator from top
It is interior；
4th Pulp pump, for the low concentration serosity after agitated in the 3rd agitator is transported to the first agitator,
So as to dilute the mud in the first agitator；
4th agitator, which receives the bottom slurry of second cyclone；
Membrane pump, for the serosity after agitated in the 4th agitator is pumped into pressure filter；
The pressure filter, for carrying out filter-press dehydration to the serosity that membrane pump pumping comes.
Description of the drawings
Fig. 1 is the device layout drawing of EPB shield tunneling dregs separation equipment according to an embodiment of the invention.
Fig. 2 is the flow chart of earth pressure balanced shield, EPBS dregs separating technology according to an embodiment of the invention.
Description of reference numerals：
1- storing sub-materials storehouse 2- drag conveyor 3- primary vibration sieve 4- the first slurry storage tank the first agitators of 5- 6- the
One Pulp pump 7- secondary vibrations sieve 8- the second slurry storage tank 9- the second Pulp pump 10- one-level cyclone the second agitators of 11-
The 4th slurries of the 3rd the 3rd agitator 17- of Pulp pump 15- second cyclone 16- of 12- sand washer 13- three-levels vibrosieve 14-
The 4th agitator 19- membrane pump 20- pressure filter 21- reservoir 22- clear water reserviors 23- storing sub-materials storehouse priming apparatus of pump 18-
The sieve priming apparatus 26- secondary vibration sieve priming apparatus 27- three-level vibrations of mono- vibration levels of 24- drag conveyor priming apparatus 25-
Sieve priming apparatus 28- sand washer priming apparatus
Specific embodiment
For the problems referred to above of prior art, the applicant has made intensive studies, and applies especially in combination with earth pressure balanced shield, EPBS
The practical situation of work and the characteristics of discharge dregs, through laboratory repetition test and concentrates on studies, it is proposed that the soil pressure of the present invention
Shield discharges the regenerated environment protecting processing method of dregs, and which passes through to optimize dregs separating technology flow process, and reasonable disposition process equipment is excellent
Change the every technical parameter of setting, the efficiently scene that can carry out to dregs separates, processes, and greatly reduces discarded dregs discharge capacity,
The sandstone material of preciousness has been reclaimed, destruction of the emission to environment has been reduced.
3rd, technical process explanation
As shown in Figure 1 and Figure 2, the dregs that shield machine (not shown) is discharged is poured over the storing sub-material storehouse 1 of bottom opening, sits
Dregs is continuously sent into primary vibration sieve 3 by the drag conveyor 2 in 1 bottom of sub-material storehouse that falls, while being added by sub-material storehouse respectively
Water installations 23, drag conveyor priming apparatus 24 and primary vibration sieve priming apparatus 25 to sub-material storehouse 1, drag conveyor 2 and
Clear water (or recirculated water) is sprayed in level vibrosieve 3, dregs is diluted；After the scalping screening of primary vibration sieve 3, can be just
Step realizes that bulk footpath material is separated with mud, and the oversize of primary vibration sieve 3 drops down onto slag field；An enforcement of the invention
Example, the partial material main component are granularities in the gravel of 20 to 200mm, cobble, ball clay etc., and stone can be used as paving after reclaiming
Road, making foundation material；The siftage of primary vibration sieve 3 enters the first slurry storage tank 4 and the first agitator 5.The agitated bucket of mud 5
Secondary vibration sieve 7 is sent to the first Pulp pump 6 after stirring, priming apparatus 26 is sieved by secondary vibration and is sprayed on secondary vibration sieve 7
Clear water (or recirculated water) is drenched, dregs is diluted；The oversize of secondary vibration sieve 7 is medium grain size (relative bulk footpath material
For) sand material, drop down onto slag field to be recycled；According to one embodiment of present invention, the sand material of the medium grain size is main
Composition is stone of the granularity in 5 to 20mm, can be used as aggregate after recovery；Under the sieve of secondary vibration sieve 7, serosity enters the
Two slurry storage tanks 8；Serosity in second slurry storage tank 8 is pumped into one-level cyclone 10 by the pressurization of the second Pulp pump 9.Serosity Jing cyclones 10
After classification, overflow portion enters the second agitator 11, and bottom slurry is entered sand washer 12, washed for 28 pairs by sand washer priming apparatus
Sand machine 12 adds water, and bottom slurry is cleaned, and the particulate matter after washing is sent into three-level vibrosieve 13 by sand washer 12, by three
Level vibrosieve priming apparatus 27 sprays clear water (or recirculated water) in three-level vibrosieve 13, to the particulate matter in three-level vibrosieve 13
It is diluted；The oversize of three-level vibrosieve 13 is the sand material of small particle (for respect to medium grain size material), drops down onto slag field
It is to be recycled；According to one embodiment of present invention, the sandstone material main component of the small particle is sand of the granularity in 0.15 to 5mm
Son, can be used as the raw material of tunnel grouting after recovery；Under the sieve of three-level vibrosieve 13, serosity is also into the second slurry storage tank 8, with
Continue circulation classification.The overflow slurry of sand washer 12 flows into the second agitator 11；The agitated rear quilt of serosity in agitator 11
The pressurization of 3rd Pulp pump 14 pumps into second cyclone 15 to be classified.
Due to being added water to sand washer 12 by sand washer priming apparatus 28, bottom slurry is cleaned, after washing
Grain thing is sent into three-level vibrosieve 13 by sand washer 12, and sprays clear water due to sieving to secondary vibration on 7 and three-level vibrosieve 13, its
Oversize (sand material (such as the stone of 5 to 20mm) of medium grain size, the sand material (such as the sand of 0.15 to 5mm) of small particle) is all
The small bits of clay being bonded on sand particles is effectively eliminated through washing, thus becomes the sand material of high-quality, it is to avoid
In aforementioned prior art due to mixing for clay component the caused sand material quality isolated major defect.
Overflow slurry after second cyclone 15 is classified enters the 3rd agitator 16.3rd agitator 16 and the second agitator
11 is connection on top, i.e., the low concentration serosity in agitator 11 can be overflowed in agitator 16 from top.3rd agitator
First agitator 5 is transported to by the 4th Pulp pump 17 after low concentration serosity in 16 is agitated, is played in the first agitator 5 of dilution
The effect of mud；The bottom slurry of second cyclone 15 enters the 4th agitator 18.Serosity in 4th agitator 18 is agitated
Pressure filter 20 is sent into by membrane pump 19 afterwards to be dehydrated.Mud cake after dehydration is recyclable to make backfill utilization, or it is remaining can
Stored up with eaily transporting to dregs stacking field.Here, the classification by second cyclone 15 to serosity, can improve two grades of rotations
The bottom slurry concentration of stream device 15, so as to improve the dewatering efficiency of pressure filter 20.The filtrate water that pressure filter 20 is discharged enters filtrate
Pond 21, is circulated use, or outer row after periodically processing.Mud cake after pressure filter dehydration, or there is certain value, more
It is suitable for landfill (especially backfilling) or directly discharges (for example pile up) processing.Mud cake can be used for making the building materials such as brick and tile,
As which passes through separation screening, with higher quality, thus the raw material more suitable for making as brick and tile, so as to corresponding
Reduce arable land, the destruction of environment and consumption.
Clear water reserviors 22 are all shower waters, flushing water, the guarantors for supplementing water and Pulp pump water seal water in the solution of the present invention
Card property water source.When the filtrate water that pressure filter 20 is discharged is available, the system flow of the present invention with using based on filtrate water, otherwise
The extraction clear water from clear water reserviors 22 is needed to add toward system.
Feature of the invention, advantage and/or beneficial effect include：
A 3 continuous uniform feedings are sieved to primary vibration using drag conveyor 2), and by storage in feeding and screening process
Material sub-material storehouse priming apparatus 23, drag conveyor priming apparatus 24, primary vibration sieve priming apparatus 25 to dregs spray clear water or
Recirculated water, makes half mobility mud be changed into the mud of the good fluidity of high-moisture, effectively realizes primary vibration sieve 3
Screening is required；
B sand washer 12 and multiple agitators 5,11,16 are configured with technological process), are effectively reduced using sand washer 12
The clay of sand material surface adhesion, has smashed the ball clay in mud using agitator 5,11,16, it is to avoid these ball clays are mixed
Enter in sandstone material, so as to recovery sand material quality has been effectively ensured；
C) two grades of screenings, three-level screening and the link such as washed-out sand be mounted with spray add clear water or circulating water device 26,27,
28, such that it is able to according to field condition, adjust control amount of water, control the reasonable concentration of mud so that separate, be classified and clear
Wash effect and reach optimum state.
D) device configuration and Process operating parameters of the invention according to circumstances (can include：Dregs process lot size, stratum ground
Matter situation, user are to reclaiming granularity requirements of sand material etc.) targetedly adjusted, thus the soil pressure of the invention
The environmental friendly regenerated processing scheme of balance shield dregs has extensive adaptability.
The application effect of expected example
If using the present invention in certain engineering, by measuring and calculating analysis, can obtain income includes：
1st, in the subway engineering of 2.4km length, roach slag discharge capacity 1/3rd can be reduced, saves 2,400,000 yuan of freight charges, subtract
Take up an area 5 mu less；
2nd, as the mud cake of the stone, ball clay and the dehydration of Jing pressure filter isolated is readily transported, engineering contractor's (this
Bright embodiment party) can consult to reduce the freight with the transporter of responsible stone, mud cake transport, this freight charges reduces estimation number and is
1300000 yuan；
3rd, 3.2 ten thousand stere of recyclable sand material, 3,200,000 yuan of the creation of value；
4th, save more than and the value that creates adds up to more than 6,900,000 yuan, equipment investment and operating cost budget totally 510
Wan Yuan, both offset, and only the dregs of the subway engineering of 2.4km is processed and can create 1,800,000 yuan of economic benefit.
5th, in the solution of the present invention, as water is that complete closed cycle is utilized, thus simply producing initial stage need to
New water is added in system, after production is stable, no longer consumption of new water substantially.It is even very high in the dregs water content of shield discharge
When, in addition it is also necessary to the tail water drained in a part of reservoir outside periodically.
6th, the cost of floor space saved because of the reduction of the dregs amount for eventually serving as waste residue output.
7th, the mud cake after pressure filter dehydration, or there is certain value, be more suitable for landfill (especially backfill) or
Directly discharge (for example piling up) is processed；The making of brick and tile is can be used for, reduces the destruction and consumption of arable land or resource.
8th, it is above-mentioned 3rd recovery sand material utilization, correspondingly reduce equivalent sandstone excavation institute caused by environment into
This.
9th, due to being added water to sand washer 12 by sand washer priming apparatus 28, bottom slurry is cleaned, after washing
Particulate matter is sent into three-level vibrosieve 13 by sand washer 12, and due to secondary vibration is sieved and three-level vibrosieve on spray clear water, its
Oversize (sand material (such as the stone of 5 to 20mm) of medium grain size, the sand material (such as the sand of 0.15 to 5mm) of small particle) is all
The small bits of clay being bonded on sand particles is effectively eliminated through washing, thus becomes the sand material of high-quality, it is to avoid
In prior art due to mixing for clay component the caused sand material quality isolated major defect.It has been obviously improved slag
The detached economic benefit of soil, has also been obviously improved the value of dregs.
The resource of above 5-9 item, environmental benefit, it is impossible to it is directly with monetary value weighing but undoubtedly extremely important and
It is significant.
In sum, the solution of the present invention is capable of achieving to discharge efficiently separating and being dehydrated for dregs to earth pressure balance, reduces useless
Waste soil discharge capacity, recycles the sand material in dregs, mitigates the destruction to environment.The present invention is to solve earth pressure balanced shield, EPBS
Dregs processes a kind of effectively successful scheme of a difficult problem, and its popularizing application prospect is extremely wide.
Claims (10)
1. earth pressure balanced shield, EPBS dregs processing method, the dregs are the dregs that earth pressure shield tunneling machine is discharged, it is characterised in that included：
With the drag conveyor (2) for being seated in sub-material storehouse (1) bottom with bottom opening, continuously will be from the sub-material storehouse
(1) dregs for falling sends into primary vibration sieve (3), and is sprayed to drag conveyor (2) by drag conveyor priming apparatus (24)
Water drenching, and priming apparatus (25) is sieved to shower water on primary vibration sieve (3) by primary vibration, to be diluted to dregs；
The first slurry storage tanks of the siftage Jing (4) that primary vibration sieves (3) is sent into the first agitator (5)；
Mud Jing after the first agitator (5) stirring is sent to secondary vibration sieve (7) with the first Pulp pump (6)；
Priming apparatus (26) is sieved to shower water in secondary vibration sieve (7) by secondary vibration, the dregs on (7) is sieved to secondary vibration
It is diluted；
The oversize that secondary vibration sieves (7) is dropped down onto slag field；
Secondary vibration is sieved serosity under the sieve of (7) and send into the second slurry storage tank (8)；
Serosity in second slurry storage tank (8) is pumped into one-level cyclone (10) with the second Pulp pump (9) pressurization；
The overflow portion of the serosity Jing after one-level cyclone (10) classification is sent into the second agitator (11), Jing one-level cyclones
(10) send into sand washer (12) in the underflow part of the serosity after being classified；
Sand washer (12) is added water with sand washer priming apparatus (28), the underflow part of the serosity is washed, and handle is washed
Particulate matter after washing sends into three-level vibrosieve (13)；
By three-level vibrosieve priming apparatus (27) to shower water in three-level vibrosieve (13), in three-level vibrosieve (13)
Grain thing is diluted；
Serosity under the sieve of three-level vibrosieve (13) is sent into second slurry storage tank (8), to proceed to follow to serosity under the sieve
Ring is classified；
The overflow portion of the serosity of sand washer (12) is sent into second agitator (11)；
Agitated serosity in second agitator (11) is pumped into second cyclone (15) with the pressurization of the 3rd Pulp pump (14), with
It is classified；
Overflow slurry after second cyclone (15) classification is sent into the 3rd agitator (16), wherein the 3rd agitator
(16) connect on top with the second agitator (11), i.e. low concentration serosity in the second agitator (11) can be from top overflow
To in the 3rd agitator (16)；
Low concentration serosity after agitated in 3rd agitator (16) is transported to the first agitator with the 4th Pulp pump (17)
(5), so as to diluting the mud in the first agitator (5)；
The bottom slurry of second cyclone (15) is sent into the 4th agitator (18)；
Serosity after agitated in 4th agitator (18) is sent into pressure filter (20) with membrane pump (19) carries out filter-press dehydration.
2. earth pressure balanced shield, EPBS dregs processing method according to claim 1, it is characterised in that further include：
Dregs is poured in sub-material storehouse (1),
Added water to sub-material storehouse (1) with sub-material storehouse priming apparatus (23).
3. earth pressure balanced shield, EPBS dregs processing method according to claim 1, it is characterised in that further include：
The oversize that primary vibration sieves (3) is dropped down onto slag field, the oversize of primary vibration sieve (3) is bulk footpath material, its
Main component is granularity in the gravel of 20mm to 200mm, cobble, and/or ball clay；
The oversize that secondary vibration sieves (7) is dropped down onto slag field, the oversize of secondary vibration sieve (7) is the sandstone of medium grain size
Material, its main component is stone of the granularity in 5mm to 20mm；
The oversize of the three-level vibrosieve (13) is the sand material of small particle, and its main component is granularity in 0.15mm to 5mm
Sand.
4. earth pressure balanced shield, EPBS dregs processing method according to claim 1, it is characterised in that：
The water sprayed in drag conveyor (2), primary vibration sieve (3), secondary vibration sieve (7), three-level vibrosieve (13) is circulation
The mixing water of water, clear water and/or recirculated water and clear water,
Wherein,
The clear water from clear water reserviors (22),
The recirculated water enters reservoir (21) from reservoir (21), the filtrate water that wherein pressure filter (20) is discharged,
When the filtrate water that pressure filter (20) is discharged is sufficient, the earth pressure balanced shield, EPBS dregs processing method uses filtrate water, no
Then just extract clear water to meet drag conveyor (2), primary vibration sieve (3), secondary vibration as needed from clear water reserviors (22)
Spray in sieve (7), three-level vibrosieve (13) supplies water.
5. earth pressure balanced shield, EPBS dregs processing method according to claim 4, it is characterised in that：
In the water sprayed in drag conveyor (2), primary vibration sieve (3), secondary vibration sieve (7), three-level vibrosieve (13)
After stable circulation, when the water content of the dregs that shield is discharged exceedes the water consumption needed for the circulation, drain periodically and/or at any time
Tail water in reservoir (21).
6. earth pressure balanced shield, EPBS dregs processing equipment, the dregs are the dregs that earth pressure shield tunneling machine is discharged, it is characterised in that included：
The drag conveyor (2) of sub-material storehouse (1) bottom with bottom opening is seated in, for continuously will be from the sub-material storehouse
(1) dregs for falling sends into primary vibration sieve (3)；
Drag conveyor priming apparatus (24), for drag conveyor (2) shower water, to be diluted to dregs；
Primary vibration sieve priming apparatus (25), for shower water on (3) is sieved to primary vibration, to be diluted to dregs；
First slurry storage tank (4), the siftage for primary vibration being sieved (3) send into the first agitator (5)；
First agitator (5)；
First Pulp pump (6), for the mud after first agitator (5) stirring is sent to secondary vibration sieve (7)；
The secondary vibration sieves (7)；
Secondary vibration sieve priming apparatus (26), for shower water on (7) is sieved to secondary vibration, sieves the slag on (7) to secondary vibration
Soil is diluted；
Second slurry storage tank (8), sieves serosity under the sieve of (7) for receiving secondary vibration；
Second Pulp pump (9), for the serosity pressurization in the second slurry storage tank (8) is pumped into one-level cyclone (10)；
One-level cyclone (10), for being classified to above-mentioned serosity,
Second agitator (11), for receiving the overflow portion of the serosity being classified by one-level cyclone (10),
Sand washer (12), which receives the underflow part of the serosity Jing after one-level cyclone (10) classification；
Sand washer priming apparatus (28), for adding water to sand washer (12)；
Sand washer priming apparatus (28), for adding water to sand washer (12), washs to the underflow part of the serosity；
Three-level vibrosieve (13), which receives the particulate matter after washing；
Three-level vibrosieve priming apparatus (27), for shower water in three-level vibrosieve (13), in three-level vibrosieve (13)
Particulate matter is diluted, wherein
Under the sieve of three-level vibrosieve (13), serosity is admitted to second slurry storage tank (8), to proceed to follow to serosity under the sieve
Ring is classified,
The overflow portion of the serosity of sand washer (12) is sent into second agitator (11),
3rd Pulp pump (14), for the agitated serosity pressurization in the second agitator (11) is pumped into second cyclone
(15), being classified；
3rd agitator (16), which receives the overflow slurry after second cyclone (15) classification, wherein the 3rd stirring
Bucket (16) is connected on top with the second agitator (11), i.e. low concentration serosity in the second agitator (11) can overflow from top
Flow in the 3rd agitator (16)；
4th Pulp pump (17), for the low concentration serosity after agitated in the 3rd agitator (16) is transported to the first stirring
Bucket (5), so as to dilute the mud in the first agitator (5)；
4th agitator (18), which receives the bottom slurry of second cyclone (15)；
Membrane pump (19), for the serosity after agitated in the 4th agitator (18) is pumped into pressure filter (20)；
The pressure filter (20), for carrying out filter-press dehydration to the serosity that membrane pump (19) pumping comes.
7. earth pressure balanced shield, EPBS dregs processing equipment according to claim 6, it is characterised in that：
The oversize of primary vibration sieve (3) is dropped down onto slag field, and the oversize of primary vibration sieve (3) is bulk footpath material, its
Main component is granularity in the gravel of 20mm to 200mm, cobble, and/or ball clay；
The oversize of secondary vibration sieve (7) is dropped down onto slag field, and the oversize of secondary vibration sieve (7) is the sandstone of medium grain size
Material, its main component is stone of the granularity in 5mm to 20mm；
The oversize of the three-level vibrosieve (13) is the sand material of small particle, and its main component is granularity in 0.15mm to 5mm
Sand.
8. earth pressure balanced shield, EPBS dregs processing equipment according to claim 6, it is characterised in that：
The water sprayed in drag conveyor (2), primary vibration sieve (3), secondary vibration sieve (7), three-level vibrosieve (13) is circulation
The mixing water of water, clear water and/or recirculated water and clear water,
Wherein,
The clear water from clear water reserviors (22),
The recirculated water enters reservoir (21) from reservoir (21), the filtrate water that wherein pressure filter (20) is discharged,
When the filtrate water that pressure filter (20) is discharged is sufficient, the earth pressure balanced shield, EPBS dregs processing equipment uses filtrate water, no
Then just extract clear water to meet drag conveyor (2), primary vibration sieve (3), secondary vibration as needed from clear water reserviors (22)
Spray in sieve (7), three-level vibrosieve (13) supplies water.
9. earth pressure balanced shield, EPBS dregs processing equipment according to claim 8, it is characterised in that：
In the water sprayed in drag conveyor (2), primary vibration sieve (3), secondary vibration sieve (7), three-level vibrosieve (13)
After stable circulation, when the water content of the dregs that shield is discharged exceedes the water consumption needed for the circulation, the tail in reservoir (21)
Water is drained periodically and/or at any time.
10. earth pressure balanced shield, EPBS dregs processing equipment according to claim 6, it is characterised in that：
Dregs is poured onto in sub-material storehouse (1),
The earth pressure balanced shield, EPBS dregs processing equipment is further included：Storing sub-material storehouse priming apparatus (23), for sub-material
Storehouse (1) adds water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510228018.1A CN104858048B (en) | 2015-05-07 | 2015-05-07 | The environmental friendly regenerated processing method of earth pressure balanced shield, EPBS dregs and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510228018.1A CN104858048B (en) | 2015-05-07 | 2015-05-07 | The environmental friendly regenerated processing method of earth pressure balanced shield, EPBS dregs and equipment |
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| CN104858048A CN104858048A (en) | 2015-08-26 |
| CN104858048B true CN104858048B (en) | 2017-04-05 |
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| CN106238444B (en) * | 2016-09-26 | 2017-05-31 | 深圳申佳原环保科技有限公司 | The system of industrial treatment mud dregs |
| CN106311725B (en) * | 2016-09-26 | 2017-05-31 | 深圳申佳原环保科技有限公司 | The method of industrial treatment mud dregs |
| CN107056240A (en) * | 2017-04-26 | 2017-08-18 | 长沙锦佳环保科技有限公司 | A kind of production method of utilization metro shield soil configuration sintered common clay brick |
| CN106978983B (en) * | 2017-04-28 | 2024-01-30 | 浙江坤德创新岩土工程有限公司 | Mud circulation treatment device and use method thereof |
| CN107234126A (en) * | 2017-07-19 | 2017-10-10 | 苏林锋 | Architecture sediment nuisanceless disposal and the method for regeneration |
| CN108654205A (en) * | 2018-06-16 | 2018-10-16 | 康明克斯（北京）机电设备有限公司 | Mud and water separating equipment and method for mud caused by shield machine digging operation |
| CN108854256A (en) * | 2018-07-12 | 2018-11-23 | 康明克斯（北京）机电设备有限公司 | A kind of mud and water separating equipment and method replacing concentration basin with cyclone |
| CN108993767B (en) * | 2018-08-04 | 2024-04-26 | 康明克斯（北京）机电设备有限公司 | Mud-water separation equipment |
| CN109611113A (en) * | 2019-01-09 | 2019-04-12 | 康明克斯(北京)环保技术有限公司 | A kind of earth pressure balanced shield, EPBS dregs continuous conveying equipment |
| CN109734274A (en) * | 2019-03-06 | 2019-05-10 | 中铁建华南建设有限公司 | Shield dregs processing method and its processing system |
| CN109876531A (en) * | 2019-03-15 | 2019-06-14 | 康明克斯(北京)环保技术有限公司 | A kind of balancing earth-pressure shielding machine dregs separation equipment and method |
| CN110303033B (en) * | 2019-07-30 | 2023-08-08 | 中铁工程服务有限公司 | Shield construction muck treatment system and treatment method |
| CN110469335A (en) * | 2019-07-30 | 2019-11-19 | 中交第二航务工程局有限公司 | The construction method that balancing earth-pressure shielding machine waste pulp recycle |
| CN113399072B (en) * | 2021-05-13 | 2023-08-22 | 厦门市政环保新材有限公司 | Multistage crushing, filtering and converting recycling processing device for shield slag soil |
| CN113578522A (en) * | 2021-08-05 | 2021-11-02 | 中铁开发投资集团有限公司 | Shield field muck screening treatment device and using method thereof |
| CN117643965A (en) * | 2024-01-30 | 2024-03-05 | 福建南方路面机械股份有限公司 | Movable high-mud-content sand washing equipment and control method |
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| FR2577235B1 (en) * | 1985-02-13 | 1987-02-20 | Omnium Traitement Valorisa | SOLID WASTE TREATMENT PLANT FOR PRODUCING FUEL |
| JPH09323097A (en) * | 1996-06-07 | 1997-12-16 | Mitsubishi Heavy Ind Ltd | Sludge treating equipment |
| CN101961674A (en) * | 2010-11-02 | 2011-02-02 | 葛洲坝集团第五工程有限公司 | Method for grading and utilizing waste material of sandstone system production |
| CN103437786B (en) * | 2013-09-04 | 2016-02-10 | 中建交通建设集团有限公司 | Shield structure body refuse Recovery Purifying reutilization system is used for the method for Shield Construction Method Used |
| CN203525901U (en) * | 2013-11-02 | 2014-04-09 | 中铁十二局集团第二工程有限公司 | Slurry treatment device for slurry shield construction |
| CN103691733B (en) * | 2013-12-11 | 2015-07-15 | 浙江大学 | Extracting, leaching and repairing integrated device and method for polluted soil |
| CN103769312A (en) * | 2014-01-09 | 2014-05-07 | 广东华隧建设股份有限公司 | Construction method for processing and recycling slurry shield muck |
| CN204769087U (en) * | 2015-05-07 | 2015-11-18 | 康明克斯（北京）机电设备有限公司 | Earth pressure balance shield dregs environmental protection regeneration treatment equipment |
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