CN111420797B - Dual-mode screening rotational flow method for shield construction muck treatment - Google Patents
Dual-mode screening rotational flow method for shield construction muck treatment Download PDFInfo
- Publication number
- CN111420797B CN111420797B CN202010247451.0A CN202010247451A CN111420797B CN 111420797 B CN111420797 B CN 111420797B CN 202010247451 A CN202010247451 A CN 202010247451A CN 111420797 B CN111420797 B CN 111420797B
- Authority
- CN
- China
- Prior art keywords
- screening
- mode
- muck
- cyclone
- treatment
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Abstract
The invention discloses a dual-mode screening rotational flow method for shield construction muck treatment, which selects a mode I or a mode II according to the shield muck treatment capacity, if more muck needs to be treated, the muck treatment speed is not less than 360m3/h, selecting a first mode, otherwise selecting a second mode, configuring two primary screening devices in the first mode to be connected in parallel to treat the muck, directly washing the rotational flow base liquid obtained by the rotational flow, can well solve the requirements of the shield when the amount of the shield muck is large and the requirement on the muck treatment effect is not high, a primary screening and a secondary screening are arranged in the mode two to be connected in series for treating the muck, and the cyclone base solution obtained by cyclone is subjected to secondary screening to obtain fine sand, and finally the fine sand is subjected to sand washing treatment, so that the requirements of the shield when the shield has small amount of residue and soil and has high requirements on treatment effects are met.
Description
Technical Field
The invention belongs to the technical field of shield muck treatment, and particularly relates to a dual-mode screening rotational flow method for shield construction muck treatment.
Background
The shield machine is widely applied to urban subway construction due to the factors of safety, high construction efficiency, low cost, wide application range of stratum and the like, in the shield tunneling process, due to the reasons of stratum water content, bentonite added in the tunneling process and the like, the transported slag soil contains a large amount of water and is even in a semi-flowing state, at present, a direct outward transportation mode is mostly adopted for treating the slag soil generated by shield construction, but the environment is polluted by directly transporting and burying the slag soil outward, and a large amount of available resources in the slag soil are wasted, so that the shield construction slag soil needs to be treated.
Because the stratum penetrated by the shield machine is complex, the shield muck generated by tunneling is unstable in property, and different treatment methods are needed to recover and utilize the shield muck aiming at different types and different quantities of shield muck and shield muck needing to achieve different treatment effects.
Disclosure of Invention
Aiming at the problem that a method for treating shield muck with different quantities and different treatment effects is lacked in the prior art, the invention provides a dual-mode screening rotational flow system for treating the muck in shield construction, which aims to: two modes are provided to respectively process the shield muck with different quantities, so as to generate different processing effects.
The technical scheme adopted by the invention is as follows:
a method of dual-mode screening cyclone for shield construction muck treatment selects different treatment modes according to the muck treatment amount, wherein the treatment modes comprise a mode one and a mode two, and the mode one comprises the following steps:
the method comprises the following steps: equally distributing the shield muck to be treated to two primary screening devices, and screening coarse sand to obtain slurry;
step two: performing cyclone separation on the slurry obtained in the step one to obtain overflow liquid and cyclone bottom liquid;
step three: performing flocculation, precipitation and filter pressing on the overflow liquid obtained in the step two respectively, and performing sand washing treatment on the rotational flow base liquid obtained in the step two;
the second mode comprises the following steps:
step A: pouring the shield muck to be treated into a primary screening device, and screening coarse sand to obtain slurry;
and B: performing cyclone separation on the slurry obtained in the step A to obtain overflow liquid and cyclone base liquid;
and C: b, respectively flocculating, precipitating and filter-pressing the overflow liquid obtained in the step B, and performing secondary screening on the rotational flow base liquid obtained in the step B to obtain fine sand;
step D: c, performing sand washing treatment on the fine sand in the step C;
step three, introducing the overflow liquid in the step two into a flocculation tower by using a high-pressure pump for flocculation and sedimentation to obtain flocculated primary slurry, conveying the primary slurry to a filter press by using the high-pressure pump for filter pressing, and performing sand washing treatment on the rotational flow base liquid by using a sand washer;
and step two, storing the slurry obtained in the step one by using a cone tank, and introducing the slurry in the cone tank into a cyclone for cyclone separation by using a high-pressure pump to obtain overflow liquid and cyclone bottom liquid.
And step one, uniformly distributing the shield muck to be treated into two primary screening devices connected in parallel by using a feeding hopper, screening coarse sand to obtain undersize mud, and storing the mud by using a conical tank.
And step A, introducing the shield muck to be treated into a primary screening device by using a feeding hopper, screening coarse sand to obtain undersize mud, and storing the mud by using a cone tank.
And B, storing the slurry obtained in the step A by using a cone tank, and introducing the slurry in the cone tank into a cyclone by using a high-pressure pump for cyclone separation to obtain overflow liquid and cyclone bottom liquid.
And step C, introducing the overflow liquid obtained in the step B into a flocculation tower by using a high-pressure pump for flocculation and precipitation to obtain flocculated primary slurry, conveying the primary slurry to a filter press by using the high-pressure pump for filter pressing, pouring the rotational flow base liquid obtained in the step B into a feed inlet of a secondary screening device, and screening by using the secondary screening device to obtain fine sand, wherein the particle size of the fine sand is 75um-2 mm.
And D, performing sand washing treatment on the fine sand in the step C by using a sand washing machine.
In the scheme, a first mode or a second mode is selected according to the shield muck treatment capacity, if more muck needs to be treated, the first mode is selected if the muck treatment rate is not less than 360m3/h, otherwise, the second mode is selected, two primary screening devices are configured in the first mode and connected in parallel to treat the muck, and the rotational flow bottom liquid obtained by rotational flow is directly washed out with sand, so that the problems that the shield muck capacity is large and the requirement on muck treatment effect is not high can be well solved, a primary screening device and a secondary screening device are configured in the second mode and connected in series to treat the muck, and the rotational flow bottom liquid obtained by rotational flow is subjected to secondary screening to obtain fine sand, and finally, the sand washing treatment is performed on the fine sand, so that the problems that the shield muck capacity is small and the requirement on treatment effect is high (fine sand is obtained) are solved;
according to the invention, the treatment is carried out in real time according to the amount of the muck, when the amount of the muck is smaller and the treatment rate of the muck is less than 360m3/h, the primary screening and the secondary screening are connected in series to meet the requirement of the treatment rate, the requirement of the treatment rate can be met in the mode, and because the muck is subjected to two-stage treatment in the mode, the obtained sand has smaller mud content and water content and has good treatment effect; when the amount of the residue soil is large, the two primary screening devices are connected in parallel, so that the treatment capacity of the equipment is doubled, and the requirement on the treatment rate can be met.
And in the first step, the shield muck to be treated is uniformly distributed into two primary screening devices connected in parallel by using a feed hopper, coarse sand is screened out to obtain undersize mud, and the mud is stored by using a cone tank.
And step two, introducing the slurry in the step one in the high-pressure pump conical tank into a cyclone for cyclone separation to obtain overflow liquid and cyclone base liquid.
And step three, introducing the overflow liquid obtained in the step two into a flocculation tower by using a high-pressure pump for flocculation and precipitation to obtain flocculated primary slurry, conveying the primary slurry to a filter press by using the high-pressure pump for filter pressing, and performing sand washing treatment on the rotational flow bottom liquid by using a sand washing machine.
And step A, introducing the shield muck to be treated into a primary screening device by using a feeding hopper, screening coarse sand to obtain undersize mud, and storing the mud by using a cone tank.
And B, introducing the slurry in the step A in the conical tank into a cyclone by using a high-pressure pump for cyclone separation to obtain overflow liquid and cyclone base liquid.
And step C, introducing the overflow liquid obtained in the step B into a flocculation tower by using a high-pressure pump for flocculation and precipitation to obtain flocculated primary slurry, conveying the primary slurry to a filter press by using the high-pressure pump for filter pressing, pouring the rotational flow base liquid obtained in the step B into a feed inlet of a secondary screening device, and screening by using the secondary screening device to obtain fine sand, wherein the particle size of the fine sand is 75um-2 mm.
And D, performing sand washing treatment on the fine sand in the step C by using a sand washing machine.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
selecting a first mode or a second mode according to the shield muck treatment capacity, if more muck needs to be treated, when the muck treatment efficiency is not less than 360m3/h, selecting the first mode, otherwise selecting the second mode, configuring two primary screening devices in the first mode to be connected in parallel to treat the muck, and directly washing sand from the rotational flow obtained by rotational flow, thereby well solving the problems of large amount of the shield muck and low requirement on muck treatment effect;
according to the invention, the residue soil is treated in real time, when the residue soil is small and the treatment efficiency of the residue soil is less than 360m3/h, the primary screening and the secondary screening are connected in series to meet the requirement of treatment speed, and the requirement of treatment speed can be met in the mode, and because the residue soil is treated in two stages, the obtained sand has small mud content and water content and good treatment effect; when the amount of the residue soil is large, the two primary screening devices are connected in parallel, so that the treatment capacity of the equipment is doubled, and the requirement on the treatment rate can be met.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of: a flow diagram of a specific implementation of mode one of the present invention.
FIG. 2 is a diagram of: a flow chart of a specific embodiment of mode two of the present invention.
Reference numerals: 1-feeding a hopper; 2-a primary screening device; 3-conical tank; 4-a swirler; 5, a filter press; 6-sand washer; 7-two-stage screening device
Detailed Description
All of the features disclosed in this specification, or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
The present invention will be described in detail with reference to fig. 1 and 2.
A method of dual-mode screening cyclone for shield construction muck treatment selects different treatment modes according to the muck treatment amount, wherein the treatment modes comprise a mode one and a mode two, and the mode one comprises the following steps:
the method comprises the following steps: equally distributing the shield muck to be treated to two primary screening devices, and screening coarse sand to obtain slurry;
step two: performing cyclone separation on the slurry obtained in the step one to obtain overflow liquid and cyclone bottom liquid;
step three: respectively performing flocculation, precipitation and filter pressing on the overflow liquid obtained in the step two, and performing sand washing treatment on the rotational flow base liquid obtained in the step two;
the second mode comprises the following steps:
step A: pouring the shield muck to be treated into a primary screening device, and screening coarse sand to obtain slurry;
and B: performing cyclone separation on the slurry obtained in the step A to obtain overflow liquid and cyclone bottom liquid;
step C: b, respectively flocculating, precipitating and filter-pressing the overflow liquid obtained in the step B, and performing secondary screening on the rotational flow base liquid obtained in the step B to obtain fine sand;
step D: d, performing sand washing treatment on the fine sand in the step C;
step three, introducing the overflow liquid in the step two into a flocculation tower by using a high-pressure pump for flocculation and precipitation to obtain flocculated primary slurry, conveying the primary slurry to a filter press 5 by using the high-pressure pump for filter pressing, and performing sand washing treatment on the cyclone bottom liquid by using a sand washing machine 6;
and in the second step, the slurry obtained in the first step is stored by using the cone tank 3, and the slurry in the cone tank 3 is introduced into the cyclone 4 by using the high-pressure pump for cyclone separation to obtain overflow liquid and cyclone bottom liquid.
Step one, dividing the shield muck to be processed into two primary screening devices 2 connected in parallel by using a feed hopper 1, screening coarse sand to obtain undersize mud, and storing the mud by using a cone tank 3.
And step A, introducing the shield muck to be treated into a primary screening device 2 by using a feeding hopper, screening coarse sand to obtain undersize mud, and storing the mud by using a cone tank 3.
And B, storing the slurry obtained in the step A by using a cone tank 3, and introducing the slurry in the cone tank 3 into a cyclone 4 by using a high-pressure pump for cyclone separation to obtain overflow liquid and cyclone bottom liquid.
And step C, introducing the overflow liquid in the step B into a flocculation tower by using a high-pressure pump for flocculation and precipitation to obtain flocculated primary slurry, conveying the primary slurry to a filter press 5 by using the high-pressure pump for filter pressing, pouring the rotational flow bottom liquid in the step B into a feed inlet of a secondary screening device 7, and screening by using the secondary screening device 7 to obtain fine sand, wherein the particle size of the fine sand is 75-2 mm.
And D, performing sand washing treatment on the fine sand in the step C by using a sand washing machine 6.
In the above embodiment, the first mode or the second mode is selected according to the amount of the shield muck to be processed, if the amount of the shield muck is large and the processing efficiency of the system is not less than 360m3/h is required, the first mode is selected, the shield muck is poured into two primary screening devices through a feeding hopper 1, the primary screening device 2 is provided with an upper layer screen and a lower layer screen, the aperture of the upper layer screen is 5mm, the aperture of the lower layer screen is 2mm, the aperture of the finally obtained coarse sand is greater than 2mm, the particle size of the slurry is less than or equal to 2mm, the two primary screening devices 2 are connected in parallel, the screen underflow of the primary screening device 2 is slurry, the screen underflow outlet of the primary screening device is connected with a cone tank 3, the discharge outlet of the cone tank 3 is connected with a swirler 4 through a pipeline, the slurry is introduced into the swirler 4 through a high-pressure pump, the slurry is processed by the swirler 4 to obtain overflow liquid and bottom liquid, the overflow outlet is connected with a flocculation tower through a pipeline, be connected with charge device in the flocculation tower, mud after flocculation, sediment is transported to pressure filter 5 through the high-pressure pump, uses pressure filter 5 to carry out the mummification dehydration and handles and obtain the mud cake, and the whirl export is provided with the chute, and the whirl bottom liquid is collected to the chute, uses conveyer or pipeline to transport the whirl bottom liquid in the chute to sand washer 6, carries out the sand washing to the whirl bottom liquid in the chute.
If the amount of the shield muck is small and the treatment efficiency of the system is required to be less than 360m3/h, selecting a second mode, pouring the shield muck into a first-stage screening device 2 through a feeding hopper 1, configuring an upper layer screen and a lower layer screen on the first-stage screening device 2, wherein the aperture of the upper layer screen is 5mm, the aperture of the lower layer screen is 2mm, the aperture of the finally obtained coarse sand is more than 2mm, the particle size of the slurry is less than or equal to 2mm, the undersize of the first-stage screening device 2 is slurry, the undersize outlet is connected with a cone tank 3, the discharge port of the cone tank 3 is connected with a swirler 4 through a pipeline, introducing the slurry into the swirler 4 through a high-pressure pump, treating the slurry through the swirler 4 to obtain overflow liquid and cyclone bottom liquid, the overflow outlet is connected with a flocculation tower through a pipeline, a dosing device is connected in the flocculation tower, and the slurry after sedimentation is transported to a filter press 5 through the high-pressure pump, use pressure filter 5 to carry out the mummification dehydration and handle and obtain the mud cake, the whirl export is provided with the chute, the whirl base fluid is collected to the chute, use conveyer or pipeline to transport the whirl base fluid of chute to second grade screening plant 7, carry out the secondary screening to the whirl base fluid in the chute, two-layer screen cloth about the configuration of second grade screening plant 7, the aperture of upper screen cloth is 1mm, the aperture of lower floor's screen cloth is 0.5mm, the undersize thing of second grade screening plant is the fine sand, the fine sand is concentrated and is collected and transport and handle in the sand washer 6.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (6)
1. A dual-mode screening rotational flow method for shield construction muck treatment is characterized by comprising the following steps: selecting different treatment modes according to the muck treatment amount, wherein the treatment modes comprise a first mode and a second mode, and the first mode comprises the following steps:
the method comprises the following steps: equally distributing the shield muck to be treated to two primary screening devices, and screening coarse sand to obtain slurry;
step two: performing cyclone separation on the slurry obtained in the step one to obtain overflow liquid and cyclone bottom liquid;
step three: performing flocculation, precipitation and filter pressing on the overflow liquid obtained in the step two respectively, and performing sand washing treatment on the rotational flow base liquid obtained in the step two;
the second mode comprises the following steps:
step A: pouring the shield muck to be treated into a primary screening device, and screening coarse sand to obtain slurry;
and B: performing cyclone separation on the slurry obtained in the step A to obtain overflow liquid and cyclone bottom liquid;
and C: b, respectively flocculating, precipitating and filter-pressing the overflow liquid obtained in the step B, and performing secondary screening on the rotational flow base liquid obtained in the step B to obtain fine sand;
step D: c, performing sand washing treatment on the fine sand in the step C;
step three, introducing the overflow liquid in the step two into a flocculation tower by using a high-pressure pump for flocculation and precipitation to obtain flocculated primary slurry, conveying the primary slurry to a filter press (5) by using the high-pressure pump for filter pressing, and performing sand washing treatment on the rotational flow bottom liquid by using a sand washing machine (6);
and the second step is to store the slurry obtained in the first step by using a cone tank (3), and introduce the slurry in the cone tank (3) into a cyclone (4) by using a high-pressure pump for cyclone separation to obtain overflow liquid and cyclone bottom liquid.
2. The method for dual-mode screening cyclone for shield construction muck treatment according to claim 1, wherein the method comprises the following steps: and step one, uniformly distributing the shield muck to be treated into two primary screening devices (2) connected in parallel by using a feeding hopper (1), screening coarse sand to obtain undersize mud, and storing the mud by using a cone tank (3).
3. The method for dual-mode screening cyclone for shield construction muck treatment according to claim 1, wherein the method comprises the following steps: and step A, introducing the shield muck to be treated into a primary screening device (2) by using a feeding hopper, screening coarse sand to obtain undersize mud, and storing the mud by using a cone tank (3).
4. The method for dual-mode screening cyclone for shield construction muck treatment according to claim 1, wherein the method comprises the following steps: and the step B is to store the slurry obtained in the step A by using a cone tank (3), and introduce the slurry in the cone tank (3) into a cyclone (4) by using a high-pressure pump for cyclone separation to obtain overflow liquid and cyclone bottom liquid.
5. The method for dual-mode screening cyclone for shield construction muck treatment according to claim 1, wherein the method comprises the following steps: and step C, introducing the overflow liquid in the step B into a flocculation tower by using a high-pressure pump for flocculation and precipitation to obtain flocculated primary slurry, conveying the primary slurry to a filter press (5) by using the high-pressure pump for filter pressing, pouring the rotational flow base liquid in the step B into a feed inlet of a secondary screening device (7), and screening by using the secondary screening device (7) to obtain fine sand, wherein the particle size of the fine sand is 75-2 mm.
6. The method for dual-mode screening cyclone for shield construction muck treatment according to claim 1, wherein the method comprises the following steps: and D, performing sand washing treatment on the fine sand in the step C by using a sand washing machine (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010247451.0A CN111420797B (en) | 2020-03-31 | 2020-03-31 | Dual-mode screening rotational flow method for shield construction muck treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010247451.0A CN111420797B (en) | 2020-03-31 | 2020-03-31 | Dual-mode screening rotational flow method for shield construction muck treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111420797A CN111420797A (en) | 2020-07-17 |
| CN111420797B true CN111420797B (en) | 2022-06-17 |
Family
ID=71550409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010247451.0A Active CN111420797B (en) | 2020-03-31 | 2020-03-31 | Dual-mode screening rotational flow method for shield construction muck treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111420797B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138858B (en) * | 2020-08-17 | 2021-07-27 | 中铁南方投资集团有限公司 | Muck resource utilization system |
| CN112129815B (en) * | 2020-09-27 | 2024-03-15 | 盾构及掘进技术国家重点实验室 | Intelligent rock slag detection system of double-mode shield spiral conveyor |
| CN112774853A (en) * | 2020-12-25 | 2021-05-11 | 山东大学 | Muck circulating treatment system and method for shield construction |
| CN112780289B (en) * | 2020-12-31 | 2022-07-15 | 中铁工程服务有限公司 | Dual-mode shield muck treatment system |
| CN112761650B (en) * | 2020-12-31 | 2022-07-15 | 中铁工程服务有限公司 | Double-mode shield muck 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 |
| CN113914308B (en) * | 2021-09-28 | 2023-05-26 | 深圳市桥梁维修设备科技有限公司 | Construction method combining forward circulation and reverse circulation of bored pile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209188998U (en) * | 2018-08-04 | 2019-08-02 | 康明克斯（北京）机电设备有限公司 | A kind of mud and water separating equipment |
| WO2019185489A1 (en) * | 2018-03-26 | 2019-10-03 | Cde Global Limited | Method and apparatus for grading and washing sand |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1099899A (en) * | 1996-10-02 | 1998-04-21 | Terunaito:Kk | Treatment of soft soils |
| JPH11159281A (en) * | 1997-12-02 | 1999-06-15 | Sumitomo Osaka Cement Co Ltd | Processing method of waste in slurry shielding method |
| CN101177325A (en) * | 2006-11-11 | 2008-05-14 | 宜昌黑旋风工程机械有限公司 | Plaster multi-step treatment device for underground engineering construction |
| CN103769312A (en) * | 2014-01-09 | 2014-05-07 | 广东华隧建设股份有限公司 | Construction method for processing and recycling slurry shield muck |
| CN207063986U (en) * | 2017-08-01 | 2018-03-02 | 中铁十四局集团隧道工程有限公司 | A kind of slurry shield quarrying case apparatus |
| CN207713520U (en) * | 2017-12-25 | 2018-08-10 | 陕西格润环保科技有限公司 | Integrated muddy water sieves cyclonic separation equipment |
| CN110303033B (en) * | 2019-07-30 | 2023-08-08 | 中铁工程服务有限公司 | Shield construction muck treatment system and treatment method |
-
2020
- 2020-03-31 CN CN202010247451.0A patent/CN111420797B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019185489A1 (en) * | 2018-03-26 | 2019-10-03 | Cde Global Limited | Method and apparatus for grading and washing sand |
| CN209188998U (en) * | 2018-08-04 | 2019-08-02 | 康明克斯（北京）机电设备有限公司 | A kind of mud and water separating equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111420797A (en) | 2020-07-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111420797B (en) | Dual-mode screening rotational flow method for shield construction muck treatment | |
| CN105016592B (en) | Slurry recycling circulation system and slurry recycling method thereof | |
| CN211100741U (en) | Shield muck zero-emission treatment system | |
| CN210305011U (en) | Shield constructs construction dregs processing system | |
| CN112808449A (en) | Shield muck sand making recycling method | |
| CN208912333U (en) | A kind of multistage multistage hydrocyclone separation technology device | |
| CN113217090A (en) | Large-scale low-concentration tailing dry-discharging treatment and paste treatment combined treatment method | |
| CN104747107B (en) | Well drilling waste mud integral treatment method | |
| CN205762942U (en) | The dystopy heavy-metal contaminated soil drip washing equipment of continuously-running | |
| CN105396685A (en) | Dry discharge technology for phosphate tailings generated during mineral separation | |
| CN101905099A (en) | Tailing treatment method and system | |
| CN203946988U (en) | A kind for the treatment of system of sandstone aggregate utilization of wastewater resource | |
| CN206965907U (en) | A kind of golden mine tailing haydite production system | |
| CN112744953A (en) | Integrated shield muck environment-friendly treatment method | |
| CN103433126A (en) | Method and device for full-tailing on-line mechanical forced concentration | |
| CN204752411U (en) | System sand hydrologic cycle clean system | |
| CN206304893U (en) | A kind of sorting unit of the red mixed type iron ore weakly magnetic tailingses of magnetic | |
| CN212042000U (en) | Heavy metal contaminated soil drip washing system | |
| CN104549717A (en) | Processing system of stones | |
| CN204911756U (en) | Hierarchical ore dressing system of water -saving magnetic iron ore | |
| CN112761650B (en) | Double-mode shield muck treatment method | |
| CN202063817U (en) | Municipal drainage pipe network sludge treatment device | |
| CN104925993A (en) | Aggregate processing flushing wastewater treatment system and method | |
| CN209378609U (en) | A kind of dry discharge cycle system of slurry environmental protection | |
| CN215784045U (en) | Shield muck treatment device for efficient sand washing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |