CN110340112A - The integrated treatment of earth pressure balanced shield, EPBS dregs and resource ecology utilize method and system - Google Patents
The integrated treatment of earth pressure balanced shield, EPBS dregs and resource ecology utilize method and system Download PDFInfo
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- CN110340112A CN110340112A CN201910647722.9A CN201910647722A CN110340112A CN 110340112 A CN110340112 A CN 110340112A CN 201910647722 A CN201910647722 A CN 201910647722A CN 110340112 A CN110340112 A CN 110340112A
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000011282 treatment Methods 0.000 title claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 78
- 239000002002 slurry Substances 0.000 claims abstract description 73
- 239000004576 sand Substances 0.000 claims abstract description 56
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 46
- 238000011065 in-situ storage Methods 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000008394 flocculating agent Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 23
- 230000008676 import Effects 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 239000002893 slag Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 12
- 238000007711 solidification Methods 0.000 claims description 11
- 230000008023 solidification Effects 0.000 claims description 11
- 230000032258 transport Effects 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 239000013505 freshwater Substances 0.000 claims description 7
- 239000006228 supernatant Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000013618 particulate matter Substances 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 229910010293 ceramic material Inorganic materials 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000002969 artificial stone Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 230000001351 cycling effect Effects 0.000 claims description 3
- 206010016256 fatigue Diseases 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 14
- 230000005641 tunneling Effects 0.000 description 8
- 230000003750 conditioning effect Effects 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008635 plant growth Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000011380 pervious concrete Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention provides a kind of earth pressure balanced shield, EPBS dregs integrated treatment and resource ecology using method and system, and the dregs for being greater than limit value for sand content uses disposal of resources method, and the dregs for being less than limit value for sand content uses in-situ solidifying method of disposal.The system of disposal of resources method includes: solution mud machine and pre-sifted, is connect by conveyer belt with storage warehouse on the sieve of pre-sifted；It is connect under the sieve of pre-sifted with slurry pond, slurry pond is connect with mud separator, mud separator is connect with screw sand washer, it is connect on the sieve of screw sand washer with third storage warehouse, screw sand washer is connect with mud separator, and mud separator is connect with dense device, dense device is connect with device for preparing flocculating agent, dense device is connect with pulper, and pulper is connect with curing agent storage tank, and pulper is connect with solidifying pool；The overflow port of dense device is connect with clear water reserviors.According to different dregs conditions, different processing schemes is provided, realizes the specific aim processing of dregs.
Description
Technical field
The present invention relates to mud conditioning fields, especially a kind of to be suitable for the integrated treatment of earth pressure balanced shield, EPBS dregs and resource
Ecological utilization method and system.
Background technique
Due to containing surfactant in EPB shield tunneling dregs, it is difficult to dry, mobility is big, with city shield dregs amount
Increase, the occupied area in soil is gradually increased, still based on air storage.If shield dregs without environmental protection treatment enter by
Na Chang, contained foaming agent once enter water body, can generate a large amount of foams, influence normal production and living, while to microorganism in water
Cause adverse effect.Most cities do not formulate effective and reasonable scheme to the stacking of dregs, and occupied space is big, and stacking is unordered,
It is degrading urban environmental hygiene, the beautification with city is uncoordinated with development of civilization, affects the image in city, unprocessed direct
Mine hole landfill or bulk deposition are carried out, may cause potential geological disaster.Also have in the prior art and is used after diluting dregs
The scheme that mud cake is transported outward after cyclone sieve, separation of solid and liquid, such as a kind of soil is described in Chinese patent literature CN 104858048A
The environmental friendly regenerated processing method of balance shield dregs and equipment are pressed, is handled using Multi-stage spiral screening and filter-press dehydration, but this method
The adaptability for not fully considering EPB shield tunneling dregs Different Strata, if the entire section of the bid section is all clay or Mud Ground, then
Any sand material can not sieved using this method, using filter press as also uneconomical and occupied area by the way of being separated by solid-liquid separation
Greatly, it is not able to satisfy engineering construction demand.
A kind of integrated mud purifying device of solid space is described in Chinese patent literature CN 103752074A, including more
The combination of a standard-sized functional framework, wherein be equipped with pre- screen frames above level-one slurry storage tank frame, set above pre- screen frames
Have always into slurry frame；The side of level-one slurry storage tank frame is equipped with second level slurry storage tank frame, is equipped with above second level slurry storage tank frame de-
Water sieve frame, dehydration screen frames top are equipped with cyclone frame；It is connected between each functional framework by system of pipe and valve.Each function
Energy frame is the size of TEU (Twenty-foot Equivalent Unit).Chinese patent literature CN206613225U describes a kind of anti-compaction concentrator, including
Cabinet, the bottom of cabinet are equipped with inverted trapezoidal bucket, and the bottom of inverted trapezoidal bucket is equipped with screw feeder device, and the discharge gate of screw feeder device is equipped with lock
Plate；The bottom of inverted trapezoidal bucket is open, and the position that the top of screw feeder device is connect with the bottom of inverted trapezoidal bucket is equipped with open top, opens
Caving portion is connect with the bottom of inverted trapezoidal bucket, the spiraling vane portions of screw feeder device in the bottom space of inverted trapezoidal bucket.
Above-mentioned device can be used in the processing of mud, but it is existing treated that mud still moisture content is higher, it is unfavorable with outward transport,
It usually also needs to transport outward after mud compacting is further dehydrated into mud cake using filter press, but the treatment effeciency of filter press is too
It is low, and occupied area is larger, and use is more inconvenient, does not adapt to existing shield-tunneling construction operating condition.And it is in the prior art
Mud conditioning technique does not fully consider the recycling and reusing of related resource, and environmental protection pressure is larger, and transports outward dregs processing not
When the geological disasters such as be also easy to occur coming down.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of earth pressure balanced shield, EPBS dregs integrated treatment and resource ecologies
Using method and system, different processing schemes is provided according to EPB shield tunneling dregs geological conditions, is realized at the specific aim of dregs
Reason, additionally it is possible to which Resource recovery is recycled, and the economic benefit of dregs processing is improved.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of earth pressure balanced shield, EPBS dregs is comprehensive
It closes processing and resource ecology utilizes method, comprising the following steps:
S1, earth pressure balanced shield, EPBS dregs sand content is detected；
S2, the dregs for being greater than limit value for sand content use disposal of resources method, and the slag of limit value is less than for sand content
Soil uses in-situ solidifying method of disposal.
In preferred scheme, sand content limit value is 50% ~ 70%.
In preferred scheme, sand content limit value is 60%.
In preferred scheme, in the disposal of resources method the following steps are included:
S21, dregs and clear water are mixed together into slurry；
S22, slurry are sent into pre-separation in pre-sifted, and the sand material of each layer is delivered to the second conveyer belt and third conveying respectively in pre-sifted
Band conveys the particle of different-grain diameter to the first storage warehouse and the second storage warehouse after washed-out sand；
Pre-sifted is delivered to the particle that the first storage warehouse is 3-20mm partial size, and it is 15mm or more that pre-sifted, which is delivered to the second storage warehouse,
Particle；
S23, pre-sifted sieve lower slurry and are temporarily stored in slurry pond, and the slurry in slurry pond is delivered to Slurry Storage pond；
Slurry is delivered to cyclone separation device by S24, Pulp pump, and supernatant is sent to spill box, and lower part slurry is sent to mud shaker, mud
Slag charge is sent by first conveyer belt to screw sand washer on the sieve of pulp screen, and particulate matter send to third and stores on the sieve of screw sand washer
Storehouse, slurry is delivered to Slurry Storage pond under the sieve of screw sand washer；
It is 74um or more particle that screw sand washer, which is delivered to third storage warehouse,；
Mud after S25, spill box overflow is sent into mud pit, and the slag charge in spill box before overflow returns to Slurry Storage pond；
The Pulp pump is variable capacity pump, according to the flow of the lower part slurry flow control Pulp pump of cyclone separation device；
The mud of mud pit is sent in dense device and mixes with flocculant；Mixed underflow is sent in pulper and solidification
Agent mixing, the mud after solidification transports or recycling and reusing；
The overflowing liquid of dense device is sent into clear water reserviors cycling and reutilization.
In preferred scheme, the in-situ solidifying method of disposal is that dregs is placed in in-situ solidifying pond, curing agent system
Standby device prepares curing agent and is delivered to in-situ solidifying machine, and curing agent is sent into in-situ solidifying pond and is stirred by in-situ solidifying machine, real
The solidification of existing dregs transports or recycling and reusing.
A kind of system utilizing method for above-mentioned earth pressure balanced shield, EPBS dregs integrated treatment and resource ecology:
The outlet of solution mud machine is connect with pre-sifted, is connect by conveyer belt with storage warehouse on the sieve of pre-sifted；
It is connect under the sieve of pre-sifted with slurry pond, slurry pond is connect with mud separator, the sieve of mud shaker in mud separator
It is upper to be connect by conveyer belt with screw sand washer, it is connect on the sieve of screw sand washer with third storage warehouse, the sieve of screw sand washer
Lower to connect with mud separator, the discharge port of mud separator is connect with the feed inlet of dense device, dense device into
Material mouth is also connect with device for preparing flocculating agent, and the discharge port of dense device and the feed inlet of pulper connect, the charging of pulper
Mouth is also connect with the outlet of curing agent storage tank, and the outlet of pulper is connect with solidifying pool；
The overflow port of dense device is connect with clear water reserviors.
In preferred scheme, the solidifying pool and foamed material process units, baking-free ceramic material production device and people
Make one or more connections in stone process units.
In preferred scheme, in the solution mud machine, it is equipped with horizontally disposed agitating shaft, agitating shaft is connected to motor；
It is additionally provided with dregs scratch pool, is equipped with elevator in dregs scratch pool, the outlet of elevator is located at the top of solution mud machine, solves mud
The top of machine is also connect with the outlet of fresh water pump, and the import of fresh water pump is connect with clear water reserviors；
The pre-sifted has multistage, and a conveyer belt is respectively corresponded on the sieve of pre-sifted at different levels；The corresponding storage of every conveyer belt
Storehouse.
In preferred scheme, the structure of mud separator are as follows: the import in Slurry Storage pond and the outlet of screw sand washer
Connection, the import in Slurry Storage pond are also connect with the outlet in slurry pond, and Slurry Storage pond passes through Pulp pump and cyclone separation device
Import connection, the import of the supernatant outlet of cyclone separation device and spill box connects, and overflow plate, overflow are equipped in spill box
Outlet before case overflow is connect with Slurry Storage pond, and the outlet after spill box overflow is connect with mud pit；
The import of cyclone separation device slag notch and mud shaker connects, and the outlet of mud shaker is connect with Slurry Storage pond, mud storage
It deposits and is equipped with fluid level control device in pond.
In preferred scheme, the structure of the curing agent storage tank is that the tank base of curing agent storage tank is equipped with weighing spiral shell
Conveyer is revolved, the outlet for screw conveyor of weighing is located at the top of pulper.
A kind of earth pressure balanced shield, EPBS dregs integrated treatment provided by the invention and resource ecology using technology and method and are
System provides different processing schemes, realizes slag by being directed to different EPB shield tunneling dregs geological conditions, mainly sand factor
The specific aim processing of soil, additionally it is possible to which Resource recovery is recycled, and the economic benefit of dregs processing is improved.By by each mud
Processing equipment and technique optimize combination, realize being substantially improved for mud conditioning efficiency, and the place between each equipment
The particulate matter of different-grain diameter can also be classified during reason, realize the classification of aggregate gradation, increase economic efficiency,
Mud especially after solidifying can also be made into building element recycling, and by solidifying and the mud of recycling and reusing
Slurry can also avoid the occurrence of the geological disasters such as landslide.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the structural schematic diagram of disposal of resources system in the present invention.
Fig. 2 is the structural schematic diagram of in-situ solidifying disposal system in the present invention.
In figure: elevator 1 solves mud machine 2, agitating shaft 201, motor 202, pre-sifted 3, mud separator 4, cyclonic separation dress
Set 41, spill box 42, mud shaker 43, Slurry Storage pond 44, fluid level control device 45, Pulp pump 46, screw sand washer 5, mud
Pond 6, the first delivery pump 7, dense device 8, cabinet 81, helix transporting device 82, device for preparing flocculating agent 9, curing agent storage tank 10,
Weighing screw conveyor 11, pulper 12, solidifying pool 13, foamed material process units 14, baking-free ceramic material production device 15,
Artificial stone process units 16, the second delivery pump 17, third delivery pump 18, first conveyer belt 19, the second conveyer belt 20, third conveying
Band 21, the first storage warehouse 22, the second storage warehouse 23, fresh water pump 24, clear water reserviors 25, third storage warehouse 26, dregs scratch pool 27, slag
Stock tank 28, curing agent preparation facilities 29, curing agent storage tank 291, water tank 292, the first pump 293, the first curing agent agitator tank 294,
Second pump 295, the second curing agent agitator tank 296, in-situ solidifying device 30, in-situ solidifying machine 301.
Specific embodiment
Embodiment 1:
A kind of earth pressure balanced shield, EPBS dregs integrated treatment and resource ecology utilize method, comprising the following steps:
S1, earth pressure balanced shield, EPBS dregs sand content is detected；Detection method can carry out examination separation with mud separator 4.
Method is to weigh quantitative dregs, is sent in mud separator 4, weighs the particulate matter isolated, particulate matter weight and slag
Percentage between native weight is to get dregs sand content out.
S2, the dregs for being greater than limit value for sand content use disposal of resources method, are less than limit value for sand content
Dregs use in-situ solidifying method of disposal.
In preferred scheme, sand content limit value is 50% ~ 70%.
In preferred scheme, sand content limit value is 60%.
In preferred scheme, is detected, the dregs for meeting different condition is used different in entirely driving Concourse Division
Method of disposal.
In preferred scheme, in the disposal of resources method the following steps are included:
S21, dregs and clear water are mixed together into slurry；
S22, slurry are sent into pre-separation in pre-sifted 3, and the sand material of each layer is delivered to the second conveyer belt 20 respectively in pre-sifted 3 and third is defeated
Band 21 is sent, the particle of different-grain diameter is conveyed after washed-out sand to the first storage warehouse 22 and the second storage warehouse 23；
Pre-sifted 3 is delivered to the particle that the first storage warehouse 22 is 3-20mm partial size, and pre-sifted 3 is delivered to the second storage warehouse 23 and is
15mm or more particle；
S23, pre-sifted 3 sieve lower slurry and are temporarily stored in slurry pond 28, and the slurry in slurry pond 28 is delivered to Slurry Storage pond 44；
Slurry is delivered to cyclone separation device 41 by S24, Pulp pump 46, and supernatant is sent to spill box 42, and lower part slurry is sent to mud
Pulp screen 43, slag charge is sent by first conveyer belt 19 to screw sand washer 5, the sieve on of screw sand washer 5 on the sieve of mud shaker 43
Grain object is sent to third storage warehouse 26, and slurry is delivered to Slurry Storage pond 44 under the sieve of screw sand washer 5；
It is 74um or more particle that screw sand washer 5, which is delivered to third storage warehouse 26,；That is 74 μm of d50 >.The core of the method for the present invention
The heart is the separating granular from mud, to offset all or part of mud conditioning cost, meanwhile, make as far as possible each
Processing capacity between process matches each other, and can also realize the gradation upgrading of recycling aggregate, reduces subsequent screener
Sequence will reach above-mentioned target, and the particle size of optimization is arranged, i.e. the setting of compass screen surface mesh is very crucial.Calculated, is used
Above-mentioned setting parameter can be realized the optimum balance between efficiency, income and gradation requirement.
Mud after S25,42 overflow of spill box is sent into mud pit 6, and the slag charge in spill box 42 before overflow returns to mud storage
Deposit pond 44；
The Pulp pump 46 is variable capacity pump, according to the lower part slurry flow control Pulp pump 46 of cyclone separation device 41
Flow；Thus scheme, while ensuring treatment effeciency, it is ensured that processing quality.
The mud of mud pit 6 is sent in dense device 8 and mixes with flocculant；Mixed underflow is sent to pulper 12
In mixed with curing agent, the mud after solidification transports or recycling and reusing；
The overflowing liquid of dense device 8 is sent into 25 cycling and reutilization of clear water reserviors.
In preferred scheme, the in-situ solidifying method of disposal is that dregs is placed in in-situ solidifying pond 302, curing agent
Preparation facilities 29 prepares curing agent and is delivered to in-situ solidifying machine 301, and curing agent is sent into in-situ solidifying pond by in-situ solidifying machine 301
It in 302 and stirs, realizes that the solidification of dregs transports or recycling and reusing.
Embodiment 2:
As shown in figure 1, a kind of system utilizing method for above-mentioned earth pressure balanced shield, EPBS dregs integrated treatment and resource ecology:
The outlet of solution mud machine 2 is connect with pre-sifted 3, is connect by conveyer belt with storage warehouse on the sieve of pre-sifted 3；
In preferred scheme, in the solution mud machine 2, it is equipped with horizontally disposed agitating shaft 201, agitating shaft 201 and motor 202 connect
It connects；
It is additionally provided with dregs scratch pool 27, is equipped with elevator 1 in dregs scratch pool 27, the outlet of elevator 1 is located at the upper of solution mud machine 2
The top of side, solution mud machine 2 is also connect with the outlet of fresh water pump 24, and the import of fresh water pump 24 is connect with clear water reserviors 25；The solution of setting
Dregs is deployed suitable moisture content by mud machine 2, consequently facilitating subsequent mud-processing equipment is further processed, which is to improve
One of the key point of mud conditioning efficiency.
It is connect under the sieve of pre-sifted 3 with slurry pond 28, slurry pond 28 is connect with mud separator 4, in mud separator 4
It is connect by conveyer belt with screw sand washer 5 on the sieve of mud shaker 43, is connected on the sieve of screw sand washer 5 with third storage warehouse 26
Connect, connect under the sieve of screw sand washer 5 with mud separator 4, the discharge port of mud separator 4 and dense device 8 into
Material mouth connection, the feed inlet of dense device 8 are also connect with device for preparing flocculating agent 9, the discharge port and pulper 12 of dense device 8
Feed inlet connection, the feed inlet of pulper 12 also connect with the outlet of curing agent storage tank 10, the outlet and solidification of pulper 12
Pond 13 connects；
The overflow port of dense device 8 is connect with clear water reserviors 25.By combined separate mode, by 74um or more the particle in mud
Object is basically separated, and is used as aggregate, and with the rise in price of aggregate, when the sand content in dregs is greater than 50%, only aggregate is recycled
Mud conditioning cost can be withdrawn.Dense device 8 is dense using the anti-compaction that Chinese patent literature CN206613225U is recorded
Close machine.
In preferred scheme, the solidifying pool 13 and foamed material process units 14, baking-free ceramic material production device
15 and artificial stone process units 16 in one or more connections.Mud after solidifying in solidifying pool 13 is made into foamed material,
Such as foaming building blocks, ceramic plane materiel, such as earthenware brick ornament materials is pressed by high pressure.Incorporation polymer is pressed into decoration employment
Make stone, such as Art Stone.In another example patent document CN107021778A is a kind of to realize the plant growth pervious mixed of reuse of dredging disposition
The plant growth pervious concrete recorded in solidifying soil body system and preparation method thereof.
The pre-sifted 3 has multistage, and a conveyer belt is respectively corresponded on the sieve of pre-sifted 3 at different levels；Every conveyer belt corresponding one
A storage warehouse.Be two-stage in this example, level-one corresponds to circumscribed circle diameter 3-20mm particle, another grade of corresponding circumscribed circle diameter 15mm with
Upper particle.Using the parameter, subsequent mud conditioning efficiency can be greatly improved, while particulate matter can be classified again,
In order to aggregate gradation.
In preferred scheme, the structure of mud separator 4 are as follows: the import in Slurry Storage pond 44 and screw sand washer 5
Outlet connection, the import in Slurry Storage pond 44 also connect with the outlet in slurry pond 28, Slurry Storage pond 44 by Pulp pump 46 and
The import of cyclone separation device 41 connects, and the supernatant outlet of cyclone separation device 41 is connect with the import of spill box 42, overflow
Overflow plate is equipped in case 42, the outlet before 42 overflow of spill box is connect with Slurry Storage pond 44, the outlet after 42 overflow of spill box
It is connect with mud pit 6；74um or more particle is substantially removed in overflow mud, consequently facilitating the recycling and reusing of subsequent mud.
41 slag notch of cyclone separation device is connect with the import of mud shaker 43, the outlet and Slurry Storage pond 44 of mud shaker 43
Connection, Slurry Storage pond 44 is interior to be equipped with fluid level control device 45.It is avoided that in Slurry Storage pond 44 by fluid level control device 45
Liquid level is too high and overflows, and can control being supported in suitable range of entire mud disposal system, can also prevent liquid level
It is too low and damage Pulp pump 46.
In preferred scheme, the structure of the curing agent storage tank 10, which is that the tank base of curing agent storage tank 10 is equipped with, to be claimed
The outlet of heavy corkscrews conveyer 11, weighing screw conveyor 11 is located at the top of pulper 12.In pulper 12, after concentration
Mud is sufficiently mixed with curing agent, to prepare for the lower process recycled together.According to the difference of subsequent recovery scheme,
That is the difference of foamed material process units 14, baking-free ceramic material production device 15 and artificial stone process units 16, curing agent
It is corresponding different.
Embodiment 3:
The present inventor has found in engineering practice, invents 1 conventional processes, and when carrying out dregs in-situ solidifying, exposure is following
Two o'clock is insufficient:
First is that lift is too big when curing agent pulvis is conveyed by medicament feeding device, compare building the construction site of concentration,
Unfavorable environment is caused to influence；
Second is that undercompounding between curing agent pulvis and EPB shield tunneling dregs, the reaction time is long, and solidification effect is undesirable.
For the above-mentioned deficiency of customer service traditional handicraft, inventor after study, and proposes a kind of curing agent aqua method for providing.
In Fig. 2, curing agent storage tank 291 connect by auger with the first curing agent agitator tank 294, water tank 292 by first pump 293 and
The connection of first curing agent agitator tank 294 is used to prepare curing agent aqua, the first curing agent agitator tank 294 and in-situ solidifying device
In-situ solidifying machine 301 in 30 connects, and the mechanical arm free end of in-situ solidifying machine 301 is equipped with agitating roller, and when work, agitating roller is set
In in in-situ solidifying pond 302, curing agent aqua is injected into in-situ solidifying pond 302 while agitating, realizes that dregs is solid in situ
Change.In preferred scheme, it is additionally provided with the second curing agent agitator tank 296, it is solid that the volume of the second curing agent agitator tank 296 is greater than first
The volume of agent agitator tank 294, the first curing agent agitator tank 294 are connected by the second pump 295 and the second curing agent agitator tank 296
It connects, water tank 292 is connect by the first pump 293 with the second curing agent agitator tank 296.Thus scheme improves consolidating for EPB shield tunneling dregs
Change effect, and fugitive dust can be reduced.In-situ solidifying device uses the device in similar patent document CN203546709U, solidification
Agent is using the curing agent recorded in a kind of river and lake silt resource utilization method of such as CN108249713A.
The technical advantages of the present invention are that:
1) the EPB shield tunneling dregs constituent under different geological conditions is different, and used treatment process is also different, this hair
Bright scheme can meet the EPB shield tunneling dregs process demand under different geological conditions to greatest extent, and wide adaptability can operate
Property is strong.
2) present invention can realize that modified mud recycles the circulation benefit, it can be achieved that outlet filtrate clear water according to user demand
With.
3) the achievable full automatic control of the present invention and on-line monitoring, high degree of automation overhaul, are easy to maintain；
4) present invention uses integrated form, modularized design, installs, convenient disassembly, and occupied area is small, it is easy to accomplish different building sites
Multiple transition recycling；
5) mature technology of the invention, equipment safety is reliable, for slag charge compressibility greatly or near incompressible outstanding
Supernatant liquid is applicable, wide adaptation range；
6) by the conversion of the dregs of the dregs to flow-like to solid-like, asking for dregs discharge supervision is solved from source
Topic, has prevented a series of environmental pollutions of the in line bring of dregs and secondary disaster problem；
7) the solidification water content of matter formed by system treated mud is low (layer of sand≤20%, mud layer≤30%), avoids slag
Expect that outward transport process generates water clock, influences urban environmental hygiene, or the building materials component for being made into needing can be convenient for；Meanwhile point
The clear water separated out directly outer can drain into sewage network, can also carry out reuse, efflux wastewater reaches GB8978-1996, and " sewage is comprehensive
Close discharge standard " standard, reclamation rate is up to 85%.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, mutual
Under the premise of not conflicting, every technical characteristic that the present invention records can be combined with each other.Protection scope of the present invention should be with right
It is required that record technical solution, including claim record technical solution in technical characteristic equivalents be protection model
It encloses.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of earth pressure balanced shield, EPBS dregs integrated treatment and resource ecology utilize method, it is characterized in that the following steps are included:
S1, earth pressure balanced shield, EPBS dregs sand content is detected；
S2, the dregs for being greater than limit value for sand content use disposal of resources method, and the slag of limit value is less than for sand content
Soil uses in-situ solidifying method of disposal.
2. a kind of earth pressure balanced shield, EPBS dregs integrated treatment according to claim 1 and resource ecology utilize method, special
Sign is: sand content limit value is 50% ~ 70%.
3. a kind of earth pressure balanced shield, EPBS dregs integrated treatment according to claim 1 and resource ecology utilize method, special
Sign is: sand content limit value is 60%.
4. a kind of described in any item earth pressure balanced shield, EPBS dregs integrated treatments and resource ecology utilization side according to claim 1 ~ 3
Method, it is characterized in that: in the disposal of resources method the following steps are included:
S21, dregs and clear water are mixed together into slurry；
S22, slurry be sent into pre-sifted (3) in pre-separation, the sand material of the upper each layer of pre-sifted (3) be delivered to respectively the second conveyer belt (20) and
Third conveyer belt (21) conveys the particle of different-grain diameter to the first storage warehouse (22) and the second storage warehouse (23) after washed-out sand；
Pre-sifted (3) is delivered to the particle that the first storage warehouse (22) is 3-20mm partial size, and pre-sifted (3) is delivered to the second storage warehouse
It (23) is 15mm or more particle；
S23, pre-sifted (3) sieve lower slurry and are temporarily stored in slurry pond (28), and the slurry of slurry pond (28) is delivered to Slurry Storage pond (44)；
Slurry is delivered to cyclone separation device (41) by S24, Pulp pump (46), and supernatant is sent to spill box (42), lower part slurry
It send to mud shaker (43), slag charge is sent by first conveyer belt (19) to screw sand washer (5), screwed washing on the sieve of mud shaker (43)
Particulate matter is sent to third storage warehouse (26) on the sieve of sand machine (5), and slurry is delivered to Slurry Storage pond under the sieve of screw sand washer (5)
(44)；
It is 74um or more particle that screw sand washer (5), which is delivered to third storage warehouse (26),；
Mud after S25, spill box (42) overflow is sent into mud pit (6), and the slag charge before spill box (42) interior overflow returns to mud
Storage pool (44)；
The Pulp pump (46) is variable capacity pump, according to the lower part slurry flow control Pulp pump of cyclone separation device (41)
(46) flow；
The mud of mud pit (6) is sent in dense device (8) and mixes with flocculant；Mixed underflow is sent to pulper
(12) it is mixed in curing agent, the mud after solidification transports or recycling and reusing；
The overflowing liquid of dense device (8) is sent into clear water reserviors (25) cycling and reutilization.
5. a kind of described in any item earth pressure balanced shield, EPBS dregs integrated treatments and resource ecology utilization side according to claim 1 ~ 3
Method, it is characterized in that: the in-situ solidifying method of disposal is to be placed in dregs in in-situ solidifying pond (302), curing agent preparation dress
It sets (29) and prepares curing agent and be delivered to in-situ solidifying machine (301), curing agent is sent into in-situ solidifying pond by in-situ solidifying machine (301)
(302) it in and stirs, realizes that the solidification of dregs transports or recycling and reusing.
6. one kind is used for the described in any item earth pressure balanced shield, EPBS dregs integrated treatments of claim 1 ~ 4 and resource ecology utilization side
The system of method, it is characterized in that:
The outlet of solution mud machine (2) is connect with pre-sifted (3), is connect by conveyer belt with storage warehouse on the sieve of pre-sifted (3)；
It is connect under the sieve of pre-sifted (3) with slurry pond (28), slurry pond (28) are connect with mud separator (4), mud separation dress
It sets in (4) and to be connect by conveyer belt with screw sand washer (5) on the sieve of mud shaker (43), with the on the sieve of screw sand washer (5)
Three storage warehouses (26) connect, and connect under the sieve of screw sand washer (5) with mud separator (4), and mud separator (4) goes out
Material mouth is connect with the feed inlet of dense device (8), and the feed inlet of dense device (8) is also connect with device for preparing flocculating agent (9), dense
The discharge port of close device (8) is connect with the feed inlet of pulper (12), the feed inlet of pulper (12) also with curing agent storage tank
(10) outlet connection, the outlet of pulper (12) is connect with solidifying pool (13)；
The overflow port of dense device (8) is connect with clear water reserviors (25).
7. according to claim 6 a kind of method is utilized for the integrated treatment of earth pressure balanced shield, EPBS dregs and resource ecology
System, it is characterized in that: the solidifying pool (13) and foamed material process units (14), baking-free ceramic material production device (15)
With the one or more connection in artificial stone process units (16).
8. according to claim 6 a kind of method is utilized for the integrated treatment of earth pressure balanced shield, EPBS dregs and resource ecology
System, it is characterized in that: being equipped with horizontally disposed agitating shaft (201), agitating shaft (201) and motor in the solution mud machine (2)
(202) it connects；
Dregs scratch pool (27) are additionally provided with, are equipped with elevator (1) in dregs scratch pool (27), the outlet of elevator (1) is located at solution
The top of the top of mud machine (2), solution mud machine (2) is also connect with the outlet of fresh water pump (24), the import of fresh water pump (24) and clear water
Pond (25) connection；
The pre-sifted (3) has multistage, respectively corresponds a conveyer belt on the sieve of pre-sifted (3) at different levels；Every conveyer belt corresponding one
A storage warehouse.
9. according to claim 6 a kind of method is utilized for the integrated treatment of earth pressure balanced shield, EPBS dregs and resource ecology
System, it is characterized in that: the structure of mud separator (4) are as follows: the import of Slurry Storage pond (44) and going out for screw sand washer (5)
Mouth connection, the import of Slurry Storage pond (44) are also connect with the outlet of slurry pond (28), and Slurry Storage pond (44) pass through Pulp pump
(46) connect with the import of cyclone separation device (41), the supernatant outlet of cyclone separation device (41) and spill box (42) into
Mouth connection, spill box (42) is interior to be equipped with overflow plate, and the outlet before spill box (42) overflow is connect with Slurry Storage pond (44), overflow
Outlet after case (42) overflow is connect with mud pit (6)；
Cyclone separation device (41) slag notch is connect with the import of mud shaker (43), the outlet and Slurry Storage pond of mud shaker (43)
(44) it connects, is equipped with fluid level control device (45) in Slurry Storage pond (44).
10. described in any item a kind of for the integrated treatment of earth pressure balanced shield, EPBS dregs and resource ecology according to claim 6 ~ 9
Using the system of method, it is characterized in that: the structure of the curing agent storage tank (10) is the tank base of curing agent storage tank (10)
Equipped with weighing screw conveyor (11), the outlet of weighing screw conveyor (11) is located at the top of pulper (12).
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| CN201910647722.9A CN110340112B (en) | 2019-07-18 | 2019-07-18 | Method and system for comprehensively treating and ecologically utilizing soil pressure balance shield muck and resources |
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| CN201910647722.9A CN110340112B (en) | 2019-07-18 | 2019-07-18 | Method and system for comprehensively treating and ecologically utilizing soil pressure balance shield muck and resources |
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| CN110695064A (en) * | 2019-11-12 | 2020-01-17 | 青岛恩普环保设备有限公司 | Shield muck zero-discharge treatment system and method |
| CN110902867A (en) * | 2019-12-10 | 2020-03-24 | 三川德青工程机械有限公司 | Shield tunneling machine pulling type solid-liquid separation system and separation method |
| CN112138858A (en) * | 2020-08-17 | 2020-12-29 | 中铁南方投资集团有限公司 | Muck resource utilization system |
| CN112692981A (en) * | 2021-01-04 | 2021-04-23 | 武汉二航路桥特种工程有限责任公司 | Preparation system and preparation process of pumpable pouring backfill solidified soil |
| CN112757470A (en) * | 2020-12-31 | 2021-05-07 | 中铁工程服务有限公司 | Brick-making recycling method for shield muck |
| CN114506986A (en) * | 2022-03-18 | 2022-05-17 | 深圳宏业基岩土科技股份有限公司 | Waste slurry and residue soil in-situ curing and mixing construction method |
| CN114942316A (en) * | 2022-05-30 | 2022-08-26 | 中铁工程服务有限公司 | Detection method for recycling of muck |
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| CN114506986A (en) * | 2022-03-18 | 2022-05-17 | 深圳宏业基岩土科技股份有限公司 | Waste slurry and residue soil in-situ curing and mixing construction method |
| CN114506986B (en) * | 2022-03-18 | 2023-08-15 | 深圳宏业基岩土科技股份有限公司 | In-situ solidification and mixing construction method for waste mud and dregs |
| CN114942316A (en) * | 2022-05-30 | 2022-08-26 | 中铁工程服务有限公司 | Detection method for recycling of muck |
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