CN114797240A - Reduction, harmless and recycling treatment process for shield slag and mud - Google Patents
Reduction, harmless and recycling treatment process for shield slag and mud Download PDFInfo
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- CN114797240A CN114797240A CN202210387471.7A CN202210387471A CN114797240A CN 114797240 A CN114797240 A CN 114797240A CN 202210387471 A CN202210387471 A CN 202210387471A CN 114797240 A CN114797240 A CN 114797240A
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- 239000002893 slag Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004064 recycling Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 239000004576 sand Substances 0.000 claims abstract description 29
- 238000005189 flocculation Methods 0.000 claims abstract description 15
- 230000016615 flocculation Effects 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000005507 spraying Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 26
- 238000004062 sedimentation Methods 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 15
- 239000003814 drug Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 239000008394 flocculating agent Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 10
- 230000003311 flocculating effect Effects 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 8
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/60—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Abstract
The invention discloses a lifting device for building facade reconstruction, which comprises the following steps: step one, preparing shield slag mud; step two, separating slag and mud; step three, separating sand and mud; step four, dehydration; step five, precipitation; step six, flocculation; step seven, filter pressing; and step eight, recycling the clean water. The invention belongs to the technical field of shield residue soil treatment, and particularly relates to a reduction, harmless and recycling treatment process for shield residue and mud.
Description
Technical Field
The invention belongs to the technical field of shield residue soil treatment, and particularly relates to a reduction, harmless and recycling treatment process for shield residue and mud.
Background
The shield slag and mud are a large amount of waste slag soil generated in shield projects such as subways, tunnels, underground pipe galleries and the like, and the waste slag soil is high in water content, large in handling capacity and large in handling difficulty. With the rapid development of urbanization in China and the popularization and expansion of transportation modes such as subways, tunnels, bridges and the like in various cities, the problems of secondary pollution, contradiction of occupied land, environmental hazard and the like caused by the subway muck are increasingly remarkable. Therefore, the demands on how to safely dispose the subway dregs and perform resource utilization and absorption on the subway dregs are pressing day by day. The timely treatment and the consumption of the shield slag and the mud can eliminate the influence of the shield slag and the mud on earthwork construction of subways and the like, and solve the harm of the shield slag and the mud to the environment and the like brought by cities. The shield slag and mud treatment process is an important attack direction of future scientific research, resource utilization is an important measure for solving the problems of high energy consumption, high pollution, high emission and low benefit, is an important way for saving land, saving resources and protecting environment, and is a necessary requirement for implementing ecological civilization construction and realizing sustainable development and environmental protection.
At present, the following schemes are generally available in the market for treating shield slag and mud: 1) the coarse and fine materials are separated by using a vibrating screen, the surfaces of the coarse materials are easy to adhere, the vibrating screen is easy to be blocked by large soil blocks, the conglomeration is difficult to pass, and the vibrating screen needs frequent stopping and correction; 2) the shield slag and mud directly enter a crushing stirrer to be processed for sand making, so that the utilization rate of coarse materials is not high. Although coarse materials can be smashed to be small due to the smashing characteristic of the sand making machine, small particles can also become powder to be lost, and the utilization rate is not high; 3) a large amount of stacking is carried to other construction sites as filling waste, and the stacking is carried out when the building waste is used or the occupied land is piled up to solve the problems of contradiction between occupation of land, environmental hazard and the like, and the risk of collapse, debris flow and the like exists when the stacking is too high. The traditional treatment method causes great dust emission around a treatment site, and causes pollution problems of environment, traffic and the like.
Disclosure of Invention
The invention aims to provide a shield slag and mud reduction, harmless and recycling treatment process to solve the problems in the background technology.
In order to solve the technical problems, the invention provides a reduction, harmless and recycling treatment process of shield slag and mud, which comprises the following steps:
firstly, preparing shield slag mud, obtaining slag mud materials from a slag pool, lifting the materials, and transferring the materials to a feeding bin;
separating slag and mud, enabling shield slag and mud materials in a feeding bin to enter an inclined round roller screen under the lubricating action of clear water, distributing two groups of high-pressure water spraying devices on two sides of the inclined round roller screen, wherein the first group of high-pressure water spraying devices are used for scattering massive shield slag and mud adhesives, the second group of high-pressure water spraying devices are used for cleaning the inclined round roller screen, the inclined round roller screen is used for separating slag mud and water by utilizing the first group of high-pressure water spraying devices and the second group of high-pressure water spraying devices which are distributed on the periphery of the inclined round roller screen while rotating obliquely, and after the slag mud is filtered, the coarse/medium aggregate is obliquely rotated out of the round roller screen and is conveyed to a coarse/medium aggregate storage yard through a conveying belt;
step three, sand and mud separation, wherein in the step two, a mud mixture filtered by an inclined round roller screen comprises fine sand, powder particles, sticky particles and water and is sent into a sand washing system through an undersize guide groove, the sand washing system adopts a wheel bucket sand washing machine and clean water is added to wash the mud mixture, the washed mud mixture is sent into a dewatering screen and is washed by high-pressure water so as to reduce the mud content in the sand, and the fine sand screened by the dewatering screen is sent into a fine aggregate storage yard through a conveyor belt;
step four, dewatering, wherein the mixture overflowing from the wheel bucket sand washer in the step three and the mixture under the screen of the dewatering screen enter a collection box under the screen together, slurry in the collection box under the screen is pumped into a hydrocyclone, and one end of the hydrocyclone flows into the dewatering screen;
step five, sedimentation, wherein the other end of the hydrocyclone in the step four enters a primary sedimentation tank; meanwhile, the undersize collecting box overflows into a primary sedimentation tank; overflowing the primary sedimentation tank into a secondary sedimentation tank, and overflowing clear water at the top of the secondary sedimentation tank into a clear water tank;
pumping the slurry into a flocculation tower through a pump in the primary sedimentation tank and the secondary sedimentation tank, fully mixing the slurry with a flocculating agent conveyed by a medicament tank through the pump, and quickly dropping the overflowed clear water into a clear water tank through a pipeline at the upper end of the flocculation tower;
step seven, filter pressing, wherein after flocculating mud and a flocculating agent which are precipitated at the bottom of the flocculating tower are flocculated again through a pipeline mixing device, the flocculating mud and the flocculating agent enter a filter press for filter pressing to form a mud cake with low water content and clear water, the clear water overflows into a clear water tank, and the mud cake is conveyed to a dry mud material yard;
and step eight, recycling the clean water, wherein the clean water in the clean water tank is recycled in the system.
Preferably, in the second step, the included angle between the incident water flow of the first group of high-pressure water spraying devices and the ground is 35-55 degrees, preferably 45 degrees.
Preferably, the clean water sprayed by the second group of high-pressure water spraying devices in the second step is dispersed into fine water drops and uniformly spread on the surface of the inclined round rolling screen.
Furthermore, the overflowing clear water of the flocculation tower falls into the clear water tank from the upper part of the flocculation tower through a pipeline, and the clear water in the clear water tank can be continuously stirred by the aid of power potential energy in the process, so that residual flocculating agents in the clear water tank can be degraded.
Preferably, the bottom surface of the medicament pond is designed to be an inclined structure, and the inclined tail end of the medicament pond is concavely provided with an inner pond for collecting flocculating agent sediment objects in clear water.
The invention adopts the structure to obtain the following beneficial effects: the reduction, harmless and recycling treatment process for shield slag and mud effectively avoids the adhesion of feeding and the blocking of large soil blocks, is easier to pass, effectively avoids frequent shutdown, and greatly improves the production efficiency; the utilization rate of the coarse material and the utilization economic value of the coarse material are improved; the problems of contradiction between the occupied land and the environment caused by accumulation of the shield slag and the mud are reduced, and the risks of over-high accumulation collapse, debris flow and the like are effectively avoided.
Drawings
FIG. 1 is a flow chart of a reduction, harmless and recycling treatment process of shield slag and mud of the invention;
FIG. 2 is a top view of an inclined round roller screen;
FIG. 3 is a side view of face A of an inclined round roller screen;
FIG. 4 is a side view of the face B of the inclined round roller screen;
fig. 5 is a top view of the medicament reservoir.
The device comprises a residue soil pond 1, a feeding bin 2, an inclined circular rolling sieve 3, a first group of high-pressure water spraying devices 4, a second group of high-pressure water spraying devices 5, a second group of high-pressure water spraying devices 6, a nozzle 7, an undersize guide groove 8, a wheel bucket sand washer 9, a dewatering sieve 10, a fine aggregate storage yard 11, a coarse/medium aggregate storage yard 12, an undersize collecting box 13, a hydrocyclone 14, a primary sedimentation tank 15, a secondary sedimentation tank 16, a clean water tank 17, a flocculation tower 18, a medicament tank 19, a pipeline mixing device 20, a filter press 21, a dry sludge storage yard 22 and an inner tank.
Detailed Description
The technical solutions of the present invention will be described in further detail with reference to specific embodiments, and all the parts of the present invention that are not described in detail in the technical features or the connection relationships of the present invention are the prior art.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-4, the reduction, harmless and recycling treatment process of shield slag and mud provided by the invention comprises the following steps:
firstly, preparing shield slag mud, obtaining slag mud materials from a slag mud pool 1, lifting the materials, transferring the materials to a feeding bin 2, and enabling the feeding bin 2 to be at a higher position, so that the slag mud materials can naturally fall downwards through potential energy during sieving;
step two, slag and mud separation, wherein shield slag and mud materials in the feeding bin 2 enter the inclined round roller screen 3 under the lubricating action of clear water, two groups of high-pressure water spraying devices are distributed on two sides of the inclined round roller screen 3, a first group of high-pressure water spraying devices 4 are used for scattering massive shield slag and mud adhesives, and a second group of high-pressure water spraying devices 5 are used for cleaning the inclined round roller screen 3 and play the following roles: firstly, the cleaning agent is used for cleaning an outer mesh screen, secondly, scattering massive slag and mud adhesives, thirdly, cleaning internal materials and quickly separating slag and mud, two groups of high-pressure water spraying devices respectively comprise a plurality of nozzles 6, the intervals of the nozzles 6 are 30-55cm, the intervals of the nozzles 6 are set according to material types, the specific number of the nozzles 6 is set according to the size of a roller screen, as shown in the figure, the surface A of an inclined round roller screen 3 is a first group of high-pressure water spraying devices 4, water columns ejected by the first group of high-pressure water spraying devices 4 form resistance with the materials entering the inclined round roller screen 3, scattering massive shield slag and mud adhesives entering the inclined round roller screen 3, the cleaning agent is convenient to clean, the shield slag and mud can be quickly separated by high-pressure flushing, water columns ejected by the second group of high-pressure water spraying devices 5 on the surface B further flush the separated particles, so that the particles are sent into a conveyor belt at higher speed, thereby improving the working efficiency of the inclined round roller screen 3, the inclined round roller screen 3 effectively separates coarse/medium aggregate directly by utilizing a first group of high-pressure water spraying devices 4 and a second group of high-pressure water spraying devices 5 which are arranged on the periphery while rotating, and the coarse/medium aggregate is conveyed to a coarse/medium aggregate storage yard 11 through a conveyor belt, which is also characterized in that the inclined round roller screen is mainly distinguished from other technical schemes in that a spraying and dissolving mode is adopted for synchronous screening, fine silt can be taken away by water flow under the action of the water flow, the surfaces of large-particle materials such as stones and the like can be effectively cleaned, silting can be effectively prevented, large materials are not easy to adhere to soil during screening, and the like, and meanwhile, the spraying has the effect of saving electric energy for the inclined round roller screen 3, and as shield slag and mud are easily softened by the water high-pressure spraying and directly screened, the screening time of the inclined round roller screen 3 can be effectively reduced, and the electric energy can be saved;
step three, sand and mud separation, wherein the mud mixture filtered out by the inclined round roller screen 3 in the step two comprises fine sand, powder particles, sticky particles and water, the fine sand, the powder particles, the sticky particles and the water are sent into a sand washing system through an undersize guide groove 7, the sand washing system adopts a wheel bucket sand washing machine 8 and clean water is added to wash the mud mixture, the washed mud mixture is sent into a dewatering screen 9 and is washed by high-pressure water so as to reduce the mud content in the sand, and the fine sand screened out by the dewatering screen 9 is sent into a fine aggregate storage yard 10 through a conveyor belt;
step four, dewatering, wherein the mixture overflowing from the wheel bucket sand washer 8 in the step three and the mixture under the screen of the dewatering screen 9 enter an under-screen collecting box 12 together, slurry in the under-screen collecting box 12 is pumped into a hydrocyclone 13, and one end of the hydrocyclone 13 flows into the dewatering screen 9;
step five, sedimentation, wherein the other end of the hydrocyclone 13 in the step four enters a primary sedimentation tank 14; meanwhile, the undersize collection box 12 overflows into a primary sedimentation tank 14; the primary sedimentation tank 14 overflows into the secondary sedimentation tank 15, and clear water at the top of the secondary sedimentation tank 15 overflows into a clear water tank 16;
step six, flocculation, the first-stage sedimentation tank 14 and the second-stage sedimentation tank 15 pump the slurry into a flocculation tower 17 through a pump, the slurry is fully mixed with a flocculating agent conveyed by a medicament tank 18 through the pump, separated clear water is separated, and the overflowed clear water quickly falls into a clear water tank 16 through a pipeline at the upper end of the flocculation tower 17;
step seven, filter pressing, wherein after flocculating mud and a flocculating agent which are precipitated at the bottom of the flocculating tower 17 are flocculated again through a pipeline mixing device 19, the flocculating mud and the flocculating agent enter a filter press 20 for filter pressing to form a low-water-content mud cake and clear water, the clear water overflows into a clear water tank 16, and the mud cake is conveyed to a dry mud storage yard 21;
and step eight, recycling the clean water, wherein the clean water in the clean water tank 16 is recycled in the system.
As shown in fig. 2-4, in the second step, the angle between the incident water flow of the first group of high-pressure water spraying devices 4 and the ground is 35-55 degrees, preferably 45 degrees; in the second step, the clean water sprayed by the second group of high-pressure water spraying devices 5 is dispersed into fine water drops and uniformly spread on the surface of the inclined round roller screen 3.
The overflowing clear water of the flocculation tower 17 falls into a clear water tank 16 from the upper part of the flocculation tower 17 through a pipeline.
As shown in fig. 5, the bottom surface of the medicine pool 18 is designed to be an inclined structure, and the inclined end of the medicine pool 18 is concavely provided with an inner pool 22, so that the medicine can be well collected.
Meanwhile, the core equipment used in each step is independently provided with a hoisting device for independent vehicle-mounted convenient movement so as to flexibly transfer.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A reduction, harmless and recycling treatment process for shield slag and mud is characterized by comprising the following steps:
firstly, preparing shield slag mud, obtaining slag mud materials from a slag pool, lifting the materials, and transferring the materials to a feeding bin;
separating slag and mud, enabling shield slag and mud materials in a feeding bin to enter an inclined round roller screen under the lubricating action of clear water, distributing two groups of high-pressure water spraying devices on two sides of the inclined round roller screen, wherein the first group of high-pressure water spraying devices are used for scattering massive shield slag and mud adhesives, the second group of high-pressure water spraying devices are used for cleaning the inclined round roller screen, the inclined round roller screen is used for separating slag mud and water by utilizing the first group of high-pressure water spraying devices and the second group of high-pressure water spraying devices which are distributed on the periphery of the inclined round roller screen while rotating obliquely, and after the slag mud is filtered, the coarse/medium aggregate is obliquely rotated out of the round roller screen and is conveyed to a coarse/medium aggregate storage yard through a conveying belt;
step three, sand and mud separation, wherein in the step two, a mud mixture filtered by an inclined round roller screen comprises fine sand, powder particles, sticky particles and water and is sent into a sand washing system through an undersize guide groove, the sand washing system adopts a wheel bucket sand washing machine and clean water is added to wash the mud mixture, the washed mud mixture is sent into a dewatering screen and is washed by high-pressure water so as to reduce the mud content in the sand, and the fine sand screened by the dewatering screen is sent into a fine aggregate storage yard through a conveyor belt;
step four, dewatering, wherein the mixture overflowing from the wheel bucket sand washer in the step three and the mixture under the screen of the dewatering screen enter a collection box under the screen together, slurry in the collection box under the screen is pumped into a hydrocyclone, and one end of the hydrocyclone flows into the dewatering screen;
step five, sedimentation, wherein the other end of the hydrocyclone in the step four enters a primary sedimentation tank; meanwhile, the undersize collecting box overflows into a primary sedimentation tank; overflowing the primary sedimentation tank into a secondary sedimentation tank, and overflowing clear water at the top of the secondary sedimentation tank into a clear water tank;
pumping the slurry into a flocculation tower through a pump in the primary sedimentation tank and the secondary sedimentation tank, fully mixing the slurry with a flocculating agent conveyed by a medicament tank through the pump, and quickly dropping the overflowed clear water into a clear water tank through a pipeline at the upper end of the flocculation tower;
step seven, filter pressing, wherein after flocculating mud and a flocculating agent which are precipitated at the bottom of the flocculating tower are flocculated again through a pipeline mixing device, the flocculating mud and the flocculating agent enter a filter press for filter pressing to form a mud cake with low water content and clear water, the clear water overflows into a clear water tank, and the mud cake is conveyed to a dry mud material yard;
and step eight, recycling the clean water, wherein the clean water in the clean water tank is recycled in the system.
2. The reduction, harmless and recycling treatment process of shield slag and mud according to claim 1, wherein in the second step, the included angle between the incident water flow of the first group of high-pressure water spraying devices and the ground is 35-55 degrees, preferably 45 degrees.
3. The process of claim 2, wherein the clean water sprayed from the second group of high pressure water spray devices is dispersed into fine water droplets and uniformly spread on the surface of the inclined round roller screen.
4. The reduction, harmless and recycling treatment process of shield slag and mud according to claim 3, wherein overflow clear water of the flocculation tower falls into a clear water tank from the upper part of the flocculation tower through a pipeline.
5. The reduction, harmless and recycling treatment process of shield slag and mud according to claim 4, wherein the bottom surface of the medicament pool is designed to be an inclined structure, and an inner pool is arranged at the inclined tail end of the medicament pool in a concave manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387471.7A CN114797240A (en) | 2022-04-13 | 2022-04-13 | Reduction, harmless and recycling treatment process for shield slag and mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387471.7A CN114797240A (en) | 2022-04-13 | 2022-04-13 | Reduction, harmless and recycling treatment process for shield slag and mud |
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| Publication Number | Publication Date |
|---|---|
| CN114797240A true CN114797240A (en) | 2022-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210387471.7A Pending CN114797240A (en) | 2022-04-13 | 2022-04-13 | Reduction, harmless and recycling treatment process for shield slag and mud |
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| CN (1) | CN114797240A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3179001A1 (en) * | 2015-12-09 | 2017-06-14 | Botnetank AS | Method and device for dewatering septic sludge |
| CN110668609A (en) * | 2019-11-06 | 2020-01-10 | 中交上海航道勘察设计研究院有限公司 | Shield waste slurry concentration treatment device and process |
| CN111410337A (en) * | 2020-04-13 | 2020-07-14 | 深圳市工勘岩土集团有限公司 | One-stop treatment system and method for foundation pit soil |
| CN111570478A (en) * | 2020-05-23 | 2020-08-25 | 中交疏浚技术装备国家工程研究中心有限公司 | Municipal administration domestic mixed waste screening processing system |
| CN112744953A (en) * | 2020-12-31 | 2021-05-04 | 中铁工程服务有限公司 | Integrated shield muck environment-friendly treatment method |
| CN112792102A (en) * | 2021-01-14 | 2021-05-14 | 中铁三局集团桥隧工程有限公司 | Shield muck environment-friendly treatment method |
| CN112827819A (en) * | 2021-03-09 | 2021-05-25 | 湖北佰翔环保科技股份有限公司 | Shield muck screening and washing equipment for weathered rock |
-
2022
- 2022-04-13 CN CN202210387471.7A patent/CN114797240A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3179001A1 (en) * | 2015-12-09 | 2017-06-14 | Botnetank AS | Method and device for dewatering septic sludge |
| CN110668609A (en) * | 2019-11-06 | 2020-01-10 | 中交上海航道勘察设计研究院有限公司 | Shield waste slurry concentration treatment device and process |
| CN111410337A (en) * | 2020-04-13 | 2020-07-14 | 深圳市工勘岩土集团有限公司 | One-stop treatment system and method for foundation pit soil |
| CN111570478A (en) * | 2020-05-23 | 2020-08-25 | 中交疏浚技术装备国家工程研究中心有限公司 | Municipal administration domestic mixed waste screening processing system |
| CN112744953A (en) * | 2020-12-31 | 2021-05-04 | 中铁工程服务有限公司 | Integrated shield muck environment-friendly treatment method |
| CN112792102A (en) * | 2021-01-14 | 2021-05-14 | 中铁三局集团桥隧工程有限公司 | Shield muck environment-friendly treatment method |
| CN112827819A (en) * | 2021-03-09 | 2021-05-25 | 湖北佰翔环保科技股份有限公司 | Shield muck screening and washing equipment for weathered rock |
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