CN109250877A - A kind of shield residues processing technique - Google Patents
A kind of shield residues processing technique Download PDFInfo
- Publication number
- CN109250877A CN109250877A CN201811065227.9A CN201811065227A CN109250877A CN 109250877 A CN109250877 A CN 109250877A CN 201811065227 A CN201811065227 A CN 201811065227A CN 109250877 A CN109250877 A CN 109250877A
- Authority
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- China
- Prior art keywords
- water
- shield
- slime water
- mud
- processing technique
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0418—Wet materials, e.g. slurries
-
- 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
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of shield residues processing techniques, the following steps are included: slime water pours into hopper, then it is screened by scalping, filter out large scale material and small-medium size material, small-medium size material is rinsed by high pressure water flow, screening process is carried out to small-medium size material after flushing, material after screening is rinsed, slime water after flushed is recycled to form a part formation fine sand by fine sand, precipitation process is carried out to slime water, slime water after precipitating carries out curing process, product after curing process is clear water and mud cake, mud cake is processed.The present invention precipitated by slime water, curing process, slime water is set to be fully utilized, the clear water obtained after slime water is processed can recycle, and obtained mud cake can be processed into aerated-block, non-burning brick, improve the product utilization rate after slime water processing.
Description
Technical field
The present invention relates to shield residues processing technique technical field more particularly to a kind of shield residues processing techniques.
Background technique
With the construction energetically in city, the development of urban-rural integration, the construction of city tunnel and subway, in process of construction
Middle a large amount of shield dregs, building waste, the shield dregs yield of being formed increases considerably.Existing treatment facility quantity and storage capacity
The requirement that shield dregs, building waste, shield dregs are disposed at this stage is no longer satisfied, spoir phenomenon violating the regulations still remains.
In order to solve city shield dregs yield sharp increase, existing treatment facility quantity and storage capacity are insufficient, dispose city shield dregs
As problem at this stage.
In city tunnel and metro industry, shield construction builds the special method in tunnel as soft soil layer, there is
A large amount of Project Shield dregs；Currently, the processing technique of shield dregs mainly has natural sedimentation method, dry ground mixing method；Naturally heavy
Shallow lake method is the method for separating mud and water by the method for natural sedimentation using the difference of mud, water density, natural sedimentation
Method does not need any mechanical equipment, only need to can reach the purpose of mud, water separation by staticly settling effect；But it is naturally heavy
The shallow lake method processing time is longer and can not accomplish mud-water separation completely, and to the product utilization rate obtained after mud water cure
It is lower.
Summary of the invention
The purpose of the present invention is to solve the processing time of natural sedimentation method in the prior art is longer and can not do completely
To mud-water separation, and the problem lower to the product utilization rate obtained after mud water cure, and a kind of shield slag proposed
Treatment process.
To achieve the goals above, the following technical solution of the present invention: a kind of shield residues processing technique, including it is following
Step:
1) slime water pours into hopper, is then screened by scalping, and large scale material and small-medium size object are filtered out
Material；
2) small-medium size material is rinsed by high pressure water flow, is carried out at screening after flushing to small-medium size material
Reason；
3) material after screening is rinsed, it is flushed after slime water be recycled to form one by fine sand
Divide and forms fine sand；
4) precipitation process is carried out to slime water；
5) slime water after precipitating carries out curing process；
6) product after curing process is clear water and mud cake；
7) mud cake is processed.
Preferably, the step of precipitation process are as follows:
4.1) slime water is come together in into progress level-one precipitation process in first stage precipitation tank；
4.2) by after level-one precipitation process slime water promoted pressurization after through differential pressure type filtering be delivered to second-level settling pond into
The processing of row two-stage precipitation；
4.3) overflow after two-stage precipitation treated slime water filtering is entered into three-level sedimentation basin and carries out three-level place of settling
Reason.
Preferably, the step of curing process are as follows:
5.1) mud of three-level precipitating outlet enters pressure mud machine from the entrance of pressure mud machine；
5.2) mud is sent into the rotating cylinder of pressure mud machine by hollow rotating shaft, there is discharge gate row under the promotion of auger conveyor
Out.
Preferably, in the step 6), the clear water that pressure mud machine flows out after solidifying is collected, water purifying tank with water purifying tank
Water pump is arranged in side, and water pump recycles the clear water of the collection of processing purified in water purifying tank.
Preferably, in the step 7), aerated-block is made in mud cake attrition process, non-burning brick is utilized.
Preferably, it is added flocculant into the first sedimentation basin, the weight ratio of slime water and flocculant is 5: 0.02.
Preferably, PH is set in third sedimentation basin and detects meter, the pH value of the slime water in sedimentation basin is adjusted,
It adjusts between pH value 7-8.
Preferably, it is 0.8MPa, action time 5min that pressure mud machine, which acts on the pressure on mud,.
Preferably, the mud cake solid of moisture content < 30% is obtained after pressure mud machine curing process.
Preferably, the diameter of large scale material is greater than 100mm, diameter≤100mm of small-medium size material.
Compared with prior art, the present invention provides a kind of shield residues processing technique, have it is following the utility model has the advantages that
A kind of shield residues processing technique, by making slime water obtain sufficient benefit to mud water sedimentation, curing process
With the clear water obtained after slime water is processed can recycle, and obtained mud cake can be processed into aerated-block, unburned
Brick improves the product utilization rate after slime water processing, also improves economic benefit.
Part is not directed in the device to be the same as those in the prior art or can be realized by using the prior art.
Detailed description of the invention
Fig. 1 is a kind of flow chart of shield residues processing technique proposed by the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specifically
Orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
Embodiment 1:
A kind of shield residues processing technique, comprising the following steps:
1) slime water pours into hopper, is then screened by scalping, and large scale material and small-medium size object are filtered out
Material is sieved in screening process using heavy-duty shocks, and heavy-duty shocks sieve uses polyurethane screen, the more other types of polyurethane screen
Screen life-span is longer, and is not easy plug-hole, and the big material screened is stackable to be crushed again together, for manufacturing building aggregate,
Be conducive to the screening to small-medium size after large scale material is sifted out, screening time is only 3-5 seconds, breakneck acceleration
Fastly, and then the subsequent time at sand is improved；
2) small-medium size material is rinsed by high pressure water flow, is carried out at screening after flushing to small-medium size material
Reason, is rinsed small-medium size material using giant, and the fine sand and surface impurity of small-medium size surface of material are rinsed
Fall, the small-medium size material after rinsing is further carried out screening, screens the different particle of diameter；
3) material after screening is rinsed, it is flushed after slime water be recycled to form one by fine sand
Divide and forms fine sand；
4) three-level precipitation process is carried out to slime water；
5) slime water after precipitating carries out curing process；
6) product after curing process is clear water and mud cake, and clear water is collected with water purifying tank；
7) mud cake is processed, mud cake carries out attrition process and aerated-block, non-burning brick is made.
Embodiment 2:
The present invention first pours into slime water in hopper, is then screened with scalping, and large scale material and medium and small is filtered out
The diameter of the material of size, large scale material is greater than 100mm, and large scale material is collected, then break process is for manufacturing
Aggregate is built, diameter≤100mm of small-medium size material carries out high pressure water flow flushing to small-medium size material, after rinsing
To the material of four kinds of sizes, 30mm≤d≤100mm material carries out crushing operation again, 10mm < d < 30mm, 5mm <
The material of d < 10mm is that finished sand collects it, is rinsed again to d≤5mm material, in the clear of double helix sand washer
There is slime water outflow in part after washing, slime water flows into layer sand recycling machine, and layer sand recycling machine is recycled it to be formed carefully
Sand, remaining slime water sequentially enters first stage precipitation tank, second-level settling pond, is precipitated in three-level sedimentation basin, quality
The biggish solid particles sediment of molecule is got off, and the slime water after settling through settling tank, which flows into centrifugal pressure mud machine, to be consolidated
Change working process, the product generated after curing process has clear water and mud cake, and water can be improved with recycling and reusing in clear water
Utilization rate, reduce the wasting of resources, reduce economic cost, the mud cake of generation is carried out attrition process, aerated-block, unburned is made
Brick, aerated-block can be used for building trade, have good thermal insulation function, can increase income, can also prevent
Slime water arbitrarily discharges, and leads to land pollution.
Embodiment 3:
During curing process, slime water is handled using centrifugal pressure mud machine, the mud of three-level precipitating outlet
Enter pressure mud machine from the entrance of pressure mud machine, mud is sent into the rotating cylinder of pressure mud machine by hollow rotating shaft, by reprinting and with hollow rotating shaft
Auger conveyor composition, mud is sent into rotating cylinder by hollow rotating shaft, under the centrifugal force that high speed rotation generates, is dumped into immediately
Rotary drum is intracavitary, since specific gravity is different, is formed and is separated by solid-liquid separation, mud is transported to rotary drum under the promotion of auger conveyor
Tapered end be continuously discharged by first outlet；The liquid of pendular ring layer is then drained into outside rotary drum by crest of weir continuous overflow and is discharged by gravity, is pressed
It is 0.8MPa, action time 5min that mud machine, which acts on the pressure on mud, from the mud of first outlet discharge moisture content < 30%
Cake solid is collected from second outlet discharge clear water with water purifying tank, water pump is arranged beside water purifying tank, water pump will be in water purifying tank
The clear water of the collection of purified processing recycles, and saves cost, the utilization rate after slurry treatment is improved, first
The mud cake of outlet discharge carries out attrition process and aerated-block, non-burning brick is made, and realizes refuse reclamation, improves economic benefit
And social benefit.
Embodiment 4:
First stage precipitation tank, second-level settling pond are respectively equipped with the first filter screen, the second filter screen, in three-level grade sedimentation basin
Three filter screens, the mesh diameter 4.1mm < d < 4.6mm of the first filter screen, the diameter 3.1mm < d < of the second filter screen
Slime water is come together in progress level-one precipitating in first stage precipitation tank by 3.4mm, the diameter 2.1mm < d < 2.3mm of third filter screen
Processing, flocculant and compound flocculation aid are added into first stage precipitation tank, which is Ling Long material for water treatment Co., Ltd
The weight ratio of the high polymer coagulant of the manufacturing, slime water and flocculant is 5:0.02, and the composition of compound flocculation aid is mainly
Compound diatomite can accelerate the flocculation rate of flocculant, keep flocculating effect more preferable, and this ratio can make first stage precipitation tank
Interior bulky grain precipitates, and then promotes the slime water after level-one precipitation process and is delivered to after pressurizeing through differential pressure type filtering
Second-level settling pond carries out two-stage precipitation processing, and overflow after two-stage precipitation treated slime water filtering is entered three-level sedimentation basin
Three-level precipitation process is carried out, PH is set in third sedimentation basin and detects meter, the pH value of the slime water in sedimentation basin is adjusted
Whole, when the numerical value of PH detection meter is greater than 7, sulfuric acid, which is added, and is adjusted into pond makes pH value near 7, when PH detection meter is aobvious
When the numerical value shown is less than 7, lime is added into pond in acidity, at this moment and is adjusted for the slime water in pond, adjusts to pH value 7-8
Between, it is proportionally added into practical application according to the amount of slime water, precipitates 15min after dosing is agitated.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention
And its inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of shield residues processing technique, which comprises the following steps:
1) slime water pours into hopper, is then screened by scalping, and large scale material and small-medium size material are filtered out；
2) small-medium size material is rinsed by high pressure water flow, carries out screening process to small-medium size material after flushing；
3) material after screening is rinsed, it is flushed after slime water be recycled to form a part of formation by fine sand
Fine sand；
4) precipitation process is carried out to slime water；
5) slime water after precipitating carries out curing process；
6) product after curing process is clear water and mud cake；
7) mud cake is processed.
2. a kind of shield residues processing technique according to claim 1, which is characterized in that in the step 4), precipitation process
The step of are as follows:
4.1) slime water is come together in into progress level-one precipitation process in first stage precipitation tank；
4.2) slime water after level-one precipitation process is promoted and is delivered to second-level settling pond progress two through differential pressure type filtering after pressurizeing
Grade precipitation process；
4.3) overflow after two-stage precipitation treated slime water filtering is entered into three-level sedimentation basin and carries out three-level precipitation process.
3. a kind of shield residues processing technique according to claim 1, which is characterized in that in the step 5), curing process
The step of are as follows:
5.1) mud of three-level precipitating outlet enters pressure mud machine from the entrance of pressure mud machine；
5.2) mud is sent into the rotating cylinder of pressure mud machine by hollow rotating shaft, there is discharge gate discharge under the promotion of auger conveyor.
4. a kind of shield residues processing technique according to claim 1, which is characterized in that in the step 6), pressure mud machine is solid
The clear water flowed out after changing, is collected with water purifying tank, is arranged water pump beside water purifying tank, and water pump is by processing purified in water purifying tank
The clear water of collection recycle.
5. a kind of shield residues processing technique according to claim 1, which is characterized in that in the step 7), mud cake is ground
Mill is processed into aerated-block, non-burning brick is utilized.
6. a kind of shield residues processing technique according to claim 2, which is characterized in that in the step 4.1), to first
The weight ratio of addition flocculant in sedimentation basin, slime water and flocculant is 5: 0.02.
7. a kind of shield residues processing technique according to claim 2, which is characterized in that in the step 4.3), in third
Setting PH detects meter in sedimentation basin, is adjusted, is adjusted between pH value 7-8 to the pH value of the slime water in sedimentation basin.
8. a kind of shield residues processing technique according to claim 3, which is characterized in that in the step 5.2), press mud machine
The pressure acted on mud is 0.8MPa, action time 5min.
9. a kind of shield residues processing technique according to claim 3, which is characterized in that the step 5.2), pressure mud machine are solid
Change processing and obtains the mud cake solid of moisture content < 30% later.
10. a kind of shield residues processing technique according to claim 1, which is characterized in that in the step 1), large scale object
The diameter of material is greater than 100mm, diameter≤100mm of small-medium size material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811065227.9A CN109250877A (en) | 2018-09-13 | 2018-09-13 | A kind of shield residues processing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811065227.9A CN109250877A (en) | 2018-09-13 | 2018-09-13 | A kind of shield residues processing technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109250877A true CN109250877A (en) | 2019-01-22 |
Family
ID=65047492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811065227.9A Pending CN109250877A (en) | 2018-09-13 | 2018-09-13 | A kind of shield residues processing technique |
Country Status (1)
| Country | Link |
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| CN (1) | CN109250877A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294515A (en) * | 2019-07-18 | 2019-10-01 | 深圳市洪桦环保科技有限公司 | Shield cleans slime water recovering and purifying system and method |
| CN110563296A (en) * | 2019-10-11 | 2019-12-13 | 王川宽 | mud separation method and system for realizing circulation by using same |
| CN111268821A (en) * | 2020-02-11 | 2020-06-12 | 深圳市华域环保科技有限公司 | Fine treatment method for slurry for clay production from building spoil |
| 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 |
| CN114105507A (en) * | 2021-12-01 | 2022-03-01 | 莫良义 | Sand washing mud improving method |
| CN114632798A (en) * | 2022-03-18 | 2022-06-17 | 上海市政工程设计研究总院（集团）有限公司 | Multistage pretreatment system and method for engineering muck |
| CN114682604A (en) * | 2020-12-31 | 2022-07-01 | 中铁工程服务有限公司 | Shield constructs dregs comprehensive utilization system plane arrangement structure |
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| CN203484221U (en) * | 2013-09-26 | 2014-03-19 | 汤奇岳 | Sand washing system |
| 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 |
| CN106623368A (en) * | 2017-01-07 | 2017-05-10 | 长沙锦佳环保科技有限公司 | Innocent treatment method for shield tunneling residue soil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294515A (en) * | 2019-07-18 | 2019-10-01 | 深圳市洪桦环保科技有限公司 | Shield cleans slime water recovering and purifying system and method |
| CN110563296A (en) * | 2019-10-11 | 2019-12-13 | 王川宽 | mud separation method and system for realizing circulation by using same |
| CN111268821A (en) * | 2020-02-11 | 2020-06-12 | 深圳市华域环保科技有限公司 | Fine treatment method for slurry for clay production from building spoil |
| CN111268821B (en) * | 2020-02-11 | 2021-01-08 | 深圳市华域环保科技有限公司 | Fine treatment method for slurry for clay production from building spoil |
| 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 |
| CN114682604A (en) * | 2020-12-31 | 2022-07-01 | 中铁工程服务有限公司 | Shield constructs dregs comprehensive utilization system plane arrangement structure |
| CN114105507A (en) * | 2021-12-01 | 2022-03-01 | 莫良义 | Sand washing mud improving method |
| CN114632798A (en) * | 2022-03-18 | 2022-06-17 | 上海市政工程设计研究总院（集团）有限公司 | Multistage pretreatment system and method for engineering muck |
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