CN112870837B - Shield residue soil treatment method for weathered rock - Google Patents
Shield residue soil treatment method for weathered rock Download PDFInfo
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- CN112870837B CN112870837B CN202110032295.0A CN202110032295A CN112870837B CN 112870837 B CN112870837 B CN 112870837B CN 202110032295 A CN202110032295 A CN 202110032295A CN 112870837 B CN112870837 B CN 112870837B
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- tower body
- screening system
- slurry
- weathered rock
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000011435 rock Substances 0.000 title claims abstract description 30
- 239000002689 soil Substances 0.000 title claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 74
- 239000000203 mixture Substances 0.000 claims abstract description 56
- 239000007787 solid Substances 0.000 claims abstract description 50
- 238000012216 screening Methods 0.000 claims abstract description 44
- 239000002245 particle Substances 0.000 claims abstract description 30
- 239000002893 slag Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000011010 flushing procedure Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000005484 gravity Effects 0.000 claims description 10
- 239000003814 drug Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000008394 flocculating agent Substances 0.000 abstract description 8
- 238000001914 filtration Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000004576 sand Substances 0.000 abstract description 4
- 239000004575 stone Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- -1 sandstone Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
- B01D36/045—Combination of filters with centrifugal separation devices
Abstract
The application provides a shield slag soil treatment method of weathered rock. The method for treating the shield slag soil of the weathered rock comprises the following steps of: s1, collecting an original slurry mixture through a first collecting tank; s2, conveying the original slurry mixture in the step S1 to a primary vibration screening system through a feeding system for screening treatment; s3, the slurry mixture passing through the primary vibration screening system in the step S2 enters a secondary high-frequency vibration dewatering screening system through a discharge port of the screening system. According to the shield residue soil treatment method for the weathered rock, provided by the application, the step-by-step screening and high-pressure filtering treatment are carried out on the slurry mixture, three types of solid particles with diameters larger than 5mm, between 2mm and 5mm and between 0.075mm and 2mm in the slurry mixture are separated in a step-by-step screening step, the classified recovery of sand and stone can be realized, and the residual slurry mixture with the diameter not higher than 0.075mm is mixed in the auxiliary of a flocculating agent and is subjected to high-pressure filtering treatment.
Description
Technical Field
The application relates to the technical field of engineering construction, in particular to a shield slag soil treatment method of weathered rock.
Background
The construction engineering profession is mainly responsible for teaching and management of civil engineering professional construction engineering directions. The basic theory and basic knowledge of engineering mechanics, soil mechanics, surveying, house construction and structural engineering disciplines are mainly cultured and mastered, and refer to the collective name of various buildings and engineering facilities which provide material technology basis for human life and production.
At present, in the construction process of the constructional engineering, the condition of mud and slag soil discharged by a shield machine is special, the mud and slag soil comprises a plurality of solid-liquid mixtures (hereinafter referred to as mud mixtures) of sand, stone, sandstone, water and the like, the mud mixtures have the characteristics of large concentration variation fluctuation, relatively high specific gravity, strong viscosity, poor fluidity and the like, the mud mixtures are difficult to treat in all aspects by a common method or equipment, and the water content of the treated solid matters does not reach the standard of transportation and upward road, or the separated liquid still contains solid impurities and does not reach the discharge standard.
Therefore, it is necessary to provide a method for treating shield slag of weathered rock to solve the above technical problems.
Disclosure of Invention
The application provides a shield muck treatment method for weathered rock, which solves the problem that common methods or equipment are difficult to treat the slurry mixture in all aspects.
In order to solve the technical problems, the shield slag soil treatment method of the weathered rock provided by the application comprises the following steps:
s1, collecting an original slurry mixture through a first collecting tank;
s2, conveying the original slurry mixture in the step S1 to a primary vibration screening system through a feeding system for screening treatment;
s3, enabling the slurry mixture passing through the primary vibration screening system in the step S2 to enter a secondary high-frequency vibration dewatering screening system through a discharge port of the screening system;
s4, enabling the slurry mixture after passing through the high-frequency vibration dewatering screening system in the step S3 to flow into a second collecting tank through a pipeline, pumping a slurry feed pump in the second collecting tank to a three-stage cyclone screening system, separating out solid particles with the diameter of more than 0.5mm by the three-stage cyclone screening system, enabling the solid particles to realize gravity dewatering through a vibrating screen, and enabling the slurry mixture separated out through the vibrating screen to flow into a slurry adjusting tank through a pipeline;
s5, pumping the slurry mixture in the slurry adjusting tank in the step S4 into a concentration reaction tank through a slurry feed pump;
s6, feeding the medicament solution into a concentration reaction tank through a liquid medicine self-suction pump to perform flocculation precipitation reaction with the slurry mixture in the step S5, forming concentrated solution, and enabling the concentrated solution to flow into a filter pressing system through a pipeline by liquid level difference to thoroughly separate solid particles with the diameter smaller than 0.5mm from liquid, thereby forming mud cakes and clear water.
Preferably, in the step S2, a first spray flushing device is started to flush the slurry mixture, so as to reduce the concentration of the slurry mixture, and the vibration screening system separates the solid particles with the diameter greater than 5mm into a first solid storage field, so that the solid particles with the diameter greater than 5mm are dried by means of gravity dehydration.
Preferably, in the step S3, the second spray rinsing device is started, the dewatering screening system separates the solid particles with the diameter greater than 2mm to the second solid storage field, and the solid particles with the diameter greater than 2mm are dried by gravity dewatering.
Preferably, in the step S4, the three-stage cyclone screening system separates out solid particles with a diameter greater than 0.5mm, and the solid particles obtained after the vibration dehydration by the vibrating screen are conveyed to a third solid storage field.
Preferably, in the step S5, the slurry in the slurry adjusting tank in the step S4 needs to be fully and uniformly stirredThe slurry mixture is pumped into a concentrating reactor tank by a slurry feed pump.
Preferably, in the step S6, the formed mud cake is transported to a fourth solid storage site by a belt conveyor, and the formed clean water flows into a clean water tank through a pipeline.
Preferably, the system further comprises a primary flushing device used in the first spraying flushing device and the second spraying flushing device, wherein the flushing device comprises a tower body; the communicating pipe is arranged at the top of the tower body; the dividing device is fixed at the top of the inner wall of the tower body and comprises a rotating table, a connecting rod is connected to the rotating table in a rotating mode, a rotary cutter set is fixedly connected to the bottom of the connecting rod, and a gear is fixedly connected to the top of the connecting rod; the flushing device comprises a main flow pipeline, and one side of the main flow pipeline is fixedly connected with an upper nozzle and a lower nozzle; the two separation baffles are respectively fixed on two sides of the inner wall of the tower body; the driving device is arranged at the top of the tower body and comprises a mounting plate, an electric telescopic rod is fixedly connected to the top of the mounting plate, a connecting plate is fixedly connected to one end of the electric telescopic rod, and two toothed plates are fixedly connected to one side of the connecting plate.
Preferably, the rotating table is fixed at the top of the inner wall of the tower body, and the top of the connecting rod penetrates through the tower body and extends to the outside of the tower body.
Preferably, the main flow pipeline is arranged at one side of the tower body, and the upper spray head and the lower spray head are both positioned in the tower body.
Preferably, the mounting plate is fixed on one side of the top of the tower body, and the toothed plate is meshed with the gear.
Compared with the related art, the shield slag soil treatment method for the weathered rock has the following beneficial effects:
the application provides a shield muck treatment method for weathered rock, which is characterized in that step-by-step screening and high-pressure filtering treatment are carried out on a slurry mixture, three types of solid particles with diameters larger than 5mm, between 2mm and 5mm and between 0.075mm and 2mm in the slurry mixture are separated in a step-by-step screening step, classified recovery of sand and stone can be realized, the slurry mixture with the residual diameter not higher than 0.5mm is mixed in the auxiliary of a flocculating agent and subjected to high-pressure filtering treatment, separation of solids and liquid is realized, the solid water content is not more than 30%, and the requirement of transportation and on-road can be met; the separated liquid is clear water, can reach the first-level class A emission standard, and fully realizes energy conservation and environmental protection.
Drawings
FIG. 1 is a system block diagram of a first embodiment of a shield muck treatment method for weathered rock provided by the application;
fig. 2 is a schematic structural diagram of a second embodiment of a method for treating shield slag soil of weathered rock according to the present application;
FIG. 3 is a schematic view of a top view of the set of rotational atherectomy devices of FIG. 3;
fig. 4 is a schematic structural view of a top view portion of the tower shown in fig. 1.
Reference numerals in the drawings: 1. the tower body, 2, the feed pipe, 3, the segmenting device, 31, the rolling table, 32, the connecting rod, 33, the rotary cutter group, 34, the gear, 4, the washing unit, 41, the main flow pipeline, 42, the top shower nozzle, 43, the below shower nozzle, 5, the separation baffle, 6, the drive arrangement, 61, the mounting panel, 62, the electric telescopic link, 63, the connecting plate, 64, two pinion racks.
Detailed Description
The application will be further described with reference to the drawings and embodiments.
First embodiment
Referring to fig. 1 in combination, fig. 1 is a system block diagram of a first embodiment of a method for treating shield slag of weathered rock according to the present application. The shield slag soil treatment method of the weathered rock comprises the following steps:
s1, collecting an original slurry mixture through a first collecting tank;
s2, conveying the original slurry mixture in the step S1 to a primary vibration screening system through a feeding system for screening treatment;
s3, enabling the slurry mixture passing through the primary vibration screening system in the step S2 to enter a secondary high-frequency vibration dewatering screening system through a discharge port of the screening system;
s4, enabling the slurry mixture after passing through the high-frequency vibration dewatering screening system in the step S3 to flow into a second collecting tank through a pipeline, pumping a slurry feed pump in the second collecting tank to a three-stage cyclone screening system, separating out solid particles with the diameter of more than 0.5mm by the three-stage cyclone screening system, enabling the solid particles to realize gravity dewatering through a vibrating screen, and enabling the slurry mixture separated out through the vibrating screen to flow into a slurry adjusting tank through a pipeline;
s5, pumping the slurry mixture in the slurry adjusting tank in the step S4 into a concentration reaction tank through a slurry feed pump;
s6, feeding the medicament solution into a concentration reaction tank through a liquid medicine self-suction pump to perform flocculation precipitation reaction with the slurry mixture in the step S5, forming concentrated solution, and enabling the concentrated solution to flow into a filter pressing system through a pipeline by liquid level difference to thoroughly separate solid particles with the diameter smaller than 0.5mm from liquid, thereby forming mud cakes and clear water.
The clear water in the clear water tank is pumped into a flocculating agent dissolving tank by a water supply pump, the flocculating agent is added into the flocculating agent dissolving tank according to a certain proportion, a stirrer is arranged in the flocculating agent dissolving tank for stirring at a low speed, the added flocculating agent and the clear water are promoted to be fully dissolved and mixed, a medicament solution is formed, and preparation is made for the final concentration reaction.
The adopted equipment can be purchased directly from the market, and can be uniformly controlled through a matched circuit control system, so that when the equipment is applied to the treatment of slurry and residue soil discharged by a shield machine on a construction site of a construction project, the separation of the solid and the liquid of the slurry and residue soil can be realized, the separated solid is convenient for transportation and on-road or backfill, and the separated liquid can be discharged in a harmless mode or recycled in a field.
In the step S2, a first spray flushing device is started to flush the slurry mixture, the concentration of the slurry mixture is reduced, and the vibration screening system separates solid particles with the diameter larger than 5mm into a first solid storage field, so that the solid particles with the diameter larger than 5mm are dried in a gravity dewatering mode.
In the step S3, a second spray rinsing device is started, the dewatering and screening system separates solid particles with diameters greater than 2mm to a second solid storage field, and drying is achieved in a manner of gravity dewatering of the solid particles with diameters greater than 2 mm.
In the step S4, the three-stage cyclone screening system separates out solid particles with the diameter larger than 0.5mm, and the solid particles obtained after the vibration dehydration of the vibrating screen are conveyed to a third solid storage field.
At the step ofS5, waiting for the slurry in the slurry adjusting tank in the step S4 to be fully and uniformly stirredThe slurry mixture is pumped into a concentrating reactor tank by a slurry feed pump.
In the step S6, the formed mud cake is transported to a fourth solid storage site by a belt conveyor, and the formed clean water flows into a clean water tank through a pipeline.
Compared with the related art, the shield slag soil treatment method for the weathered rock has the following beneficial effects:
the application provides a shield muck treatment method for weathered rock, which is characterized in that step-by-step screening and high-pressure filtering treatment are carried out on the slurry mixture, three types of solid particles with diameters larger than 5mm, between 2mm and 5mm and between 0.075mm and 2mm in the slurry mixture are separated in a step-by-step screening step, classified recovery of sand and stone can be realized, the slurry mixture with the residual diameter not higher than 0.5mm is mixed in the auxiliary of a flocculating agent, the separation of solids and liquid is realized, the solid water content is not more than 30%, and the transportation and the road-up requirements can be met; the separated liquid is clear water, can reach the first-level class A emission standard, and fully realizes energy conservation and environmental protection.
Second embodiment
Referring to fig. 2, 3 and 4, another method for treating shield slag of weathered rock is provided according to a second embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the method for treating the shield slag of the weathered rock provided by the second embodiment of the application is different in that the method for treating the shield slag of the weathered rock further comprises a primary flushing device used in the first spraying flushing device and the second spraying flushing device, and the flushing device comprises a tower body 1; the communicating pipe 2 is arranged at the top of the tower body 1; the dividing device 3, the dividing device 3 is fixed on the top of the inner wall of the tower body 1, the dividing device 3 comprises a rotating table 31, a connecting rod 32 is connected to the rotating table 31 in a rotating mode, a rotary cutter set 33 is fixedly connected to the bottom of the connecting rod 32, and a gear 34 is fixedly connected to the top of the connecting rod 32; the flushing device 4 comprises a main flow pipeline 41, wherein one side of the main flow pipeline 41 is fixedly connected with an upper nozzle 42 and a lower nozzle 43; the two separation baffles 5 are respectively fixed on two sides of the inner wall of the tower body 1; the driving device 6, the driving device 6 set up in the top of tower body 1, the driving device 6 includes mounting panel 61, the top fixedly connected with electric telescopic handle 62 of mounting panel 61, the one end fixedly connected with connecting plate 63 of electric telescopic handle 62, one side fixedly connected with two pinion racks 64 of connecting plate 63.
The mud mixture can flow into the inside of the tower body 1 through the communication material pipe 2, conveniently sprays and washes first washing device and second washing device, and the main flow pipeline 41 can absorb water to the clear water in the clear water pond through the external water absorption pump to carry to the top shower nozzle 42 and the below shower nozzle 43.
The water in the clean water tank can be conveyed to the first spray flushing device, the second spray flushing device and the water in the field according to the requirement.
The rotating table 31 is fixed on the top of the inner wall of the tower body 1, and the top of the connecting rod 32 penetrates through the tower body 1 and extends to the outside of the tower body 1.
The gear 34 is located above the tower 1.
The main flow pipe 41 is disposed on one side of the tower body 1, and the upper nozzle 42 and the lower nozzle 43 are both located inside the tower body 1.
The partition baffle 5 is disposed obliquely above the lower spray nozzle 43, so that it is possible to prevent mud from falling into the interior of the tower body 1.
The mounting plate 61 is fixed to one side of the top of the tower 1, and the toothed plate 64 is engaged with the gear 34.
The top of the mounting plate 61 and the top of the tower 1 are positioned at the same level.
The working principle of the shield slag soil treatment method of the weathered rock provided by the application is as follows:
when the external slurry mixture falls into the tower body 1 through the communicating pipe 2, the connecting plate 63 can be driven to synchronously move through the extension and contraction of the electric telescopic rod 62, the connecting plate 63 drives the toothed plate 64 to reciprocate at the top of the tower body 1, the toothed plate 64 drives the gear 34 to rotate, the gear 34 drives the rotary cutter set 33 to rotate through the connecting rod 32, the slurry mixture falling from the communicating pipe 2 is rotary-cut, caking is avoided, and the recovery is convenient;
the rotary cutter unit 33 is washed by the upper shower head 42, the slurry mixture is prevented from adhering to the upper side of the rotary cutter unit 33, and the slurry mixture falling from the communicating pipe 2 is sprayed and washed by the lower shower head 43.
Compared with the related art, the shield slag soil treatment method for the weathered rock has the following beneficial effects:
the rotary cutting is carried out on the slurry mixture falling from the inside of the communicating pipe 2 through the rotary cutting knife set 33, the slurry mixture is prevented from caking, the caking slurry mixture is crushed, and the crushed slurry mixture is sprayed through the lower spray head 42, so that the spraying is more uniform and sufficient.
The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.
Claims (8)
1. The method for treating the shield slag soil of the weathered rock is characterized by comprising the following steps of:
s1, collecting an original slurry mixture through a first collecting tank;
s2, conveying the original slurry mixture in the step S1 to a primary vibration screening system through a feeding system for screening treatment;
s3, enabling the slurry mixture passing through the primary vibration screening system in the step S2 to enter a secondary high-frequency vibration dewatering screening system through a discharge port of the screening system;
s4, enabling the slurry mixture after passing through the high-frequency vibration dewatering screening system in the step S3 to flow into a second collecting tank through a pipeline, pumping a slurry feed pump in the second collecting tank to a three-stage cyclone screening system, separating solid particles with diameters larger than 0.075mm by the three-stage cyclone screening system, enabling the solid particles to realize gravity dewatering through a vibrating screen, and enabling the slurry mixture separated through the vibrating screen to flow into a slurry regulating tank through a pipeline;
s5, pumping the slurry mixture in the slurry adjusting tank in the step S4 into a concentration reaction tank through a slurry feed pump;
s6, feeding the medicament solution into a concentration reaction tank through a liquid medicine self-suction pump to perform flocculation precipitation reaction with the slurry mixture in the step S5 to form concentrated solution, and enabling the concentrated solution to flow into a filter pressing system through a pipeline by liquid level difference to thoroughly separate solid particles with the diameter smaller than 0.075mm from liquid, so that mud cakes and clear water are formed;
in the step S2, a first spray flushing device is started to flush the slurry mixture, the concentration of the slurry mixture is reduced, the vibration screening system separates solid particles with the diameter of more than 5mm into a first solid storage field, and the solid particles with the diameter of more than 5mm are dried in a gravity dehydration mode;
in the step S3, a second spray rinsing device is started, the dewatering and screening system separates solid particles with diameters greater than 2mm to a second solid storage field, and drying is achieved in a manner of gravity dewatering of the solid particles with diameters greater than 2 mm.
2. The method for treating shield muck of weathered rock according to claim 1, wherein in the step S4, a three-stage cyclone screening system separates out solid particles with a diameter greater than 0.5mm, and the solid particles obtained after the vibration dehydration by a vibrating screen are transported to a third solid storage field.
3. The method for treating shield muck of weathered rock according to claim 1, wherein in the step S5, it is necessary to wait for the slurry in the slurry adjusting tank in the step S4 to be sufficiently stirred uniformlyThe slurry mixture is pumped into a concentrating reaction tank by a slurry feed pump.
4. The method for treating shield muck of weathered rock according to claim 1, wherein in the step S6, the formed mud cake is transported to a fourth solid storage site by a belt conveyor, and the formed clear water flows into a clear water tank via a pipe.
5. The method for shield muck treatment of weathered rock according to claim 1, further comprising a preliminary flushing device used in the first spray flushing device and the second spray flushing device, the preliminary flushing device including a tower body;
the communicating pipe is arranged at the top of the tower body;
the dividing device is fixed at the top of the inner wall of the tower body and comprises a rotating table, a connecting rod is connected to the rotating table in a rotating mode, a rotary cutter set is fixedly connected to the bottom of the connecting rod, and a gear is fixedly connected to the top of the connecting rod;
the flushing device comprises a main flow pipeline, and one side of the main flow pipeline is fixedly connected with an upper nozzle and a lower nozzle;
the two separation baffles are respectively fixed on two sides of the inner wall of the tower body;
the driving device is arranged at the top of the tower body and comprises a mounting plate, an electric telescopic rod is fixedly connected to the top of the mounting plate, a connecting plate is fixedly connected to one end of the electric telescopic rod, and two toothed plates are fixedly connected to one side of the connecting plate.
6. The method for treating shield muck of weathered rock according to claim 5, wherein the rotating table is fixed to a top of an inner wall of the tower body, and a top of the connecting rod penetrates through the tower body and extends to an outside of the tower body.
7. The method for treating shield slag of weathered rock according to claim 5, wherein the main flow pipe is provided at one side of the tower body, and the upper shower head and the lower shower head are both located inside the tower body.
8. The method for treating shield muck of weathered rock according to claim 5, wherein the mounting plate is fixed to one side of the top of the tower body, and the toothed plate is meshed with the gear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032295.0A CN112870837B (en) | 2021-01-11 | 2021-01-11 | Shield residue soil treatment method for weathered rock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032295.0A CN112870837B (en) | 2021-01-11 | 2021-01-11 | Shield residue soil treatment method for weathered rock |
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| CN112870837A CN112870837A (en) | 2021-06-01 |
| CN112870837B true CN112870837B (en) | 2023-12-01 |
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| CN114758184B (en) * | 2022-06-14 | 2022-09-06 | 福建南方路面机械股份有限公司 | Deep learning-based muck classification processing guide method and device and readable medium |
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| US6892679B2 (en) * | 2002-07-09 | 2005-05-17 | Clyde Bergemann, Inc. | Multi-media rotating sootblower and automatic industrial boiler cleaning system |
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