CN113338971A - Mining TBM rock slag slurry water-carrying closed-circuit circulating system and process - Google Patents
Mining TBM rock slag slurry water-carrying closed-circuit circulating system and process Download PDFInfo
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- CN113338971A CN113338971A CN202110823101.9A CN202110823101A CN113338971A CN 113338971 A CN113338971 A CN 113338971A CN 202110823101 A CN202110823101 A CN 202110823101A CN 113338971 A CN113338971 A CN 113338971A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Abstract
The invention belongs to the technical field of tunnels and underground engineering, and particularly relates to a mine TBM rock slurry water-carrying closed-circuit circulating system and a process, which comprise a rock slurry grading chamber for collecting rock slurry and a slurry concentration and filter-pressing chamber for treating the rock slurry; the rock slurry grading chamber and the slurry concentration and pressure filtration chamber in the TBM rock slurry water-carrying closed circulation system for the mine can collect and treat the rock slurry, and recycle clean water filtered by the slurry concentration and pressure filtration chamber, so that the condition that raw coal in a water sump is polluted by the rock slurry is avoided, and the separation difficulty and the process cost of coal slurry are effectively reduced.
Description
Technical Field
The invention belongs to the technical field of tunnels and underground engineering, and particularly relates to a TBM (tunnel boring machine) rock slag slurry water-carrying closed-circuit circulating system and a process for mining.
Background
The application of the mining TBM full-rock tunneling machine in coal mine development is becoming mature, and the mining TBM full-rock tunneling machine is actively popularized and used in the development of coal mine rock roadways.
However, the mining TBM full-rock tunneling machine has a very serious problem in the construction process, namely the final treatment of rock slag; the products produced in the excavation process of the TBM full-rock tunnel boring machine are collectively called rock slag materials, the main components of the rock slag materials are broken rocks, the granularity of the rock slag materials is mostly below 50mm, and the rock slag materials are changed into rock slag slurry after meeting water.
The separation of the coal slime is the link with the greatest difficulty, the most complex process and the highest cost in the coal separation process, however, part of the rock pulp can be mixed into raw coal, and argillized rock powder in the rock pulp can be discharged into an underground water sump along with water flow to pollute the water sump, and the argillized rock powder and the coal slime in the water sump are mixed together to seriously affect the quality of the coal slime;
in the process of transferring and lifting the coal slime, the coal slime is mixed with the raw coal, so that the coal slime amount is greatly increased, the separation difficulty and the process cost are increased, the large economic loss is caused, and meanwhile, the large burden is caused to the environmental management. Therefore, the invention provides a mining TBM rock slag slurry water-carrying closed-circuit circulating system and a mining TBM rock slag slurry water-carrying closed-circuit circulating process capable of preventing rock slag slurry from entering a water sump, and is a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a mine TBM rock slurry water-carrying closed-circuit circulating system, which aims to solve the technical problems that rock slurry in the prior art can enter a water sump, so that the raw coal separation and the process cost are increased.
The invention is realized by the following technical scheme:
a mining TBM rock slurry water-carrying closed-circuit circulating system comprises a rock slurry grading chamber and a slurry concentration and filter pressing chamber;
the rock slurry grading chamber comprises a water collecting pit, a pit pump, a grading vibrating screen, a slurry pool and a slurry pump, wherein the pit pump is arranged in the water collecting pit, the discharge end of the pit pump is communicated to the grading vibrating screen, the slurry pool is arranged below the grading vibrating screen, and the slurry pump is arranged in the slurry pool;
the concentrated filter-pressing chamber of thick liquid includes concentrated pond group, concentrated pump, pressure filter and clean water basin, the discharge end of sediment stuff pump with concentrated pond group intercommunication, be provided with underflow pipeline and overflow pipe in the concentrated pond group, the underflow pipeline sets up the bottom of concentrated pond group, the discharge gate of underflow pipeline passes through the concentrated pump with the feed inlet intercommunication of pressure filter, the below of pressure filter is provided with the catch basin, the play water end of overflow pipe and the play water end of catch basin all with the clean water basin intercommunication, be provided with clean water pump in the clean water basin, clean water pump's delivery port intercommunication to on the hierarchical shale shaker to with TBM cooling dust fall pipeline intercommunication.
In order to better realize the invention, the structure is further optimized, the rock slurry grading chamber further comprises a TBM slurry conveyor, the feeding end of the TBM slurry conveyor is positioned in the mine hole, and the discharging end of the TBM slurry conveyor is communicated to the grading vibrating screen.
In order to better realize the invention, the structure is further optimized, a blast pipe for blowing air into the slurry tank is arranged in the slurry tank, and the input end of the blast pipe is communicated with a fan.
In order to better implement the invention, the structure is further optimized, and the diameter of the screen hole of the grading vibration screen is 3mm-13 mm.
In order to better realize the invention, the structure is further optimized, the rock slag slurry grading chamber further comprises a slag conveyor for conveying large-particle slag on the grading vibrating screen, and the input end of the slag conveyor is communicated with the grading vibrating screen.
In order to better realize the invention, the structure is further optimized, and the slurry concentration and pressure filtration chamber further comprises a dosing system for adding a curing agent, and a liquid outlet of the dosing system is communicated with the concentration tank group.
In order to better implement the invention, the structure is further optimized, and the concentrating pool group is a pyramid concentrating pool group.
In order to better implement the invention, the structure is further optimized, and the slurry concentration and filter pressing chamber further comprises a filter cake conveyor which is arranged at the discharge port of the filter press.
In order to better realize the invention, the structure is further optimized, the mining TBM rock slurry water-carrying closed-circuit circulating system further comprises a PLC (programmable logic controller), and the pit pump, the grading vibrating screen, the slurry pump, the concentration pump, the filter press and the clean water pump are all electrically connected with the PLC.
In summary, the present invention has the following technical effects:
the rock slurry grading chamber and the slurry concentration and pressure filtration chamber in the mining TBM rock slurry water-carrying closed-circuit circulating system can collect and treat the rock slurry and recycle the filtered clean water, so that the condition that raw coal in a water sump is polluted by the rock slurry is avoided, and the separation difficulty and the process cost of the coal slurry are effectively reduced.
In addition, the invention also provides a mining TBM rock slurry water-carrying closed-circuit circulation process, which is implemented by the mining TBM rock slurry water-carrying closed-circuit circulation system, and the process comprises the following steps:
the pit pump pumps the rock slag slurry flowing into the sump onto the grading vibration screen;
filtering large-particle impurities through the grading vibration screen, and enabling small-particle impurities, namely rock slurry to fall into a slurry pool;
the slurry pump pumps the small-particle sundries and the rock slurry in the slurry pool to the concentration pool group for concentration and precipitation;
the sediment in the concentration tank group flows to the concentration pump through a bottom flow pipeline and is sent into a filter press through the concentration pump to be pressed and filtered into a slag cake;
clear water on the concentration tank group and clear water filtered by the filter press can flow into the clear water tank and are pumped to the grading vibration sieve and the TBM cooling and dust settling pipeline for cyclic utilization through the clear water.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a rock slurry grading chamber in a TBM rock slurry water-carrying closed circuit circulating system for a mine;
FIG. 2 is a schematic structural diagram of a slurry concentration filter-pressing chamber in a mining TBM rock slag slurry water-carrying closed-circuit circulating system.
Reference numerals:
1. a rock slurry grading chamber; 11. a sump; 12. a pit pump; 13. grading and vibrating screen; 14. a slurry tank; 141. a blast pipe; 15. a slurry pump; 16. a TBM slurry conveyor; 17. a slag conveyor;
2. a slurry concentration and filter pressing chamber; 21. a concentration tank group; 22. a concentration pump; 23. a filter press; 24. a clean water tank; 25. an underflow line; 26. an overflow pipe; 27. a water collecting tank; 28. a clean water pump; 29. a dosing system; 210. a filter cake conveyor;
3. TBM cooling dust fall pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The first embodiment is as follows:
as shown in fig. 1 and 2:
a mining TBM rock slurry water-carrying closed-circuit circulating system comprises a rock slurry grading chamber 1 and a slurry concentration and pressure filtration chamber 2; wherein the content of the first and second substances,
the rock slurry grading chamber 1 comprises a water collecting pit 11, a pit pump 12, a grading vibrating screen 13, a slurry pool 14 and a slurry pump 15, wherein the pit pump 12 is arranged in the water collecting pit 11, the discharge end of the pit pump 12 is communicated to the grading vibrating screen 13, the slurry pool 14 is arranged below the grading vibrating screen 13, and the slurry pump 15 is arranged in the slurry pool 14;
the slurry concentration and filter pressing chamber 2 comprises a concentration tank group 21, a concentration pump 22, a filter press 23 and a clean water tank 24, wherein the discharge end of the slurry pump 15 is communicated with the concentration tank group 21, a bottom flow pipeline 25 and an overflow pipe 26 are arranged in the concentration tank group 21, the bottom flow pipeline 25 is arranged at the bottom of the concentration tank group 21, the discharge port of the bottom flow pipeline 25 is communicated with the feed port of the filter press 23 through the concentration pump 22, a water collecting tank 27 is arranged below the filter press 23, the water outlet end of the overflow pipe 26 and the water outlet end of the water collecting tank 27 are both communicated with the clean water tank 24, a clean water pump 28 is arranged in the clean water tank 24, and the water outlet of the clean water pump 28 is communicated to the grading vibrating screen 13 and communicated with the TBM temperature-reducing and dust-falling pipeline 3.
In the working process, the TBM utilizes a hob on a rotary cutter disc to extrude and shear to break rock, the collision between the hob and the tunnel face generates a large amount of heat, cold water is cooled through a TBM cooling and dust-settling pipeline 3 to ensure the normal work of the TBM, and at the moment, slag materials are mixed with cooling water and dust-settling water to form rock slag slurry;
the rock slurry flows into the water collecting pit 11 and is pumped to the grading vibration sieve 13 through the pit pump 12, the grading vibration sieve 13 can filter out solid impurities larger than 3mm, the rock slurry falls into the slurry pool 14 through the grading vibration sieve 13, and the slurry pump 15 in the slurry pool 14 can pump the filtered rock slurry into the concentration pool group 21 in the slurry concentration and pressure filtration chamber 2, so that the rock slurry is settled and concentrated in the concentration pool group 21;
the slurry after sedimentation and concentration can be sent into a filter press 23 through a concentration pump 22 to be made into a filter cake, the filter cake is used for filling a goaf and hardening a roadway, clear water generated in the filter cake making process and clear water overflowing from a concentration tank group 21 can flow into a clear water tank 24, and the clear water in the clear water tank 24 can be pumped to a grading vibrating screen 13 through a clear water pump 28 and recycled in a TBM temperature-reducing and dust-settling pipeline 3.
The rock slurry grading chamber 1 and the slurry concentration and pressure filtration chamber 2 in the TBM rock slurry water-carrying closed-circuit circulating system for the mine can collect and process the rock slurry, so that the condition that raw coal is polluted by the rock slurry is avoided, and the separation difficulty and the process cost of coal slurry are effectively reduced.
Preferably, the rock slurry grading chamber 1 further comprises a TBM slurry conveyor 16; wherein the content of the first and second substances,
the feeding end of the TBM slurry conveyor 16 is positioned in the mine hole, and the discharging end of the TBM slurry conveyor is communicated to the grading vibrating screen 13; during operation, the TBM slurry conveyor 16 may feed solid slag from the mine opening onto the classifying shaker 13 and filter the small particle slag through the shaker into the slurry tank 14 to form a rock slurry.
It should be noted that a feeding box is arranged at a feeding port of the grading vibrating screen 13, and a discharging port of the pit pump 12 and a discharging port of the TBM slurry conveyor 16 are both communicated to the feeding box and then conveyed to the grading vibrating screen 13 through the feeding box.
Preferably, a blast pipe 141 is arranged in the slurry tank 14, and an input end of the blast pipe 141 is communicated with a fan; in the working process, the worker can start the fan and blow air into the slurry tank 14 through the blast pipe 141 so as to avoid the situations of rock slurry solidification or solid impurity settlement in the slurry tank 14 and the like.
Preferably, the mesh diameter of the classifying vibrating screen 13 is 3 mm.
In addition, the grading vibration screen 13 can be replaced according to the use condition, and the diameter of the selected screen hole can be 3mm-13mm and the like.
Preferably, the rock slag slurry grading chamber 1 further comprises a slag conveyor 17; wherein the content of the first and second substances,
the grading vibration sieve 13 is arranged obliquely, and the input end of the slag conveyor 17 is arranged at the position of the lowest point of the grading vibration sieve 13; the large-particle solid impurities filtered by the classifying vibrating screen 13 can fall onto the slag conveyor 17 along the classifying vibrating screen 13 and are sent out to the outside through the slag conveyor 17.
Preferably, the slurry concentration and pressure filtration chamber 2 further comprises a dosing system 29; wherein the content of the first and second substances,
the liquid outlet of the medicine adding system 29 is communicated with the concentration tank group 21, and a curing agent is filled in the medicine adding system 29; the curing agent can be added into the concentrated tank group 21 through the dosing system 29, so that the concentration speed of the rock slag slurry is effectively improved.
Preferably, the concentrating cell group 21 is a pyramid concentrating cell group 21.
Preferably, the slurry concentration and pressure filtration chamber 2 further comprises a filter cake conveyor 210; wherein the content of the first and second substances,
the filter cake conveyor 210 is disposed at the discharge port of the filter press 23 so as to convey the filter cake produced by the filter press 23 to a place where it is needed.
Optimally, the mining TBM rock slurry water-carrying closed-circuit circulating system further comprises a PLC (programmable logic controller), and the pit pump 12, the grading vibrating screen 13, the slurry pump 15, the TBM slurry conveyor 16, the slurry conveyor 17, the concentration pump 22, the filter press 23, the clean water pump 28, the dosing system 29 and the filter cake conveyor 210 are electrically connected with the PLC, so that the mining TBM rock slurry water-carrying closed-circuit circulating system can realize the functions of remote centralized start/stop and fault locking.
Preferably, video monitoring equipment is further arranged in the rock slurry grading chamber 1 and the slurry concentration and filter pressing chamber 2, and the video monitoring equipment can monitor the mine TBM rock slurry water-carrying closed circulation system in real time so as to ensure the safety of the production environment.
Example two:
as shown in fig. 1 and 2:
a mining TBM rock slag slurry water-carrying closed-circuit circulation process is implemented by the mining TBM rock slag slurry water-carrying closed-circuit circulation system recorded in the first embodiment, and comprises the following steps:
the pit pump 12 pumps the rock slurry flowing into the sump 11 onto the grading vibrating screen 13;
large-particle impurities are filtered through a grading vibrating screen 13, and small-particle impurities, namely rock slurry, fall into a slurry tank 14;
the slurry pump 15 pumps the small-particle sundries and the rock slurry in the slurry tank 14 to the concentration tank group 21 for concentration and precipitation;
the sediment in the concentration tank group 21 flows to a concentration pump 22 through an underflow pipeline 25 and is sent to a filter press 23 through the concentration pump 22 to be pressed and filtered into a slag cake;
clear water on the concentration tank group 21 and clear water filtered by the filter press 23 can flow into a clear water tank 24 and are sent to the grading vibrating screen 13 and the TBM temperature-reducing and dust-settling pipeline 3 for recycling through a clear water pump 28.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a mining TBM rock sediment thick liquid carries water closed circuit circulation system which characterized in that: comprises a rock slag slurry grading chamber (1) and a slurry concentration and pressure filtration chamber (2);
the rock slurry grading chamber (1) comprises a water collecting pit (11), a pit pump (12), a grading vibrating screen (13), a slurry pool (14) and a slurry pump (15), wherein the pit pump (12) is arranged in the water collecting pit (11), the discharge end of the pit pump (12) is communicated to the grading vibrating screen (13), the slurry pool (14) is arranged below the grading vibrating screen (13), and the slurry pump (15) is arranged in the slurry pool (14);
the slurry concentration and pressure filtration chamber (2) comprises a concentration tank group (21), a concentration pump (22), a pressure filter (23) and a clean water tank (24), the discharge end of the slurry pump (15) is communicated with the concentration tank group (21), an underflow pipeline (25) and an overflow pipe (26) are arranged in the concentration tank group (21), the underflow pipeline (25) is arranged at the bottom of the concentration tank group (21), the discharge hole of the underflow pipeline (25) is communicated with the feed inlet of the pressure filter (23) through the concentration pump (22), a water collecting tank (27) is arranged below the pressure filter (23), the discharge end of the overflow pipe (26) and the discharge end of the water collecting tank (27) are communicated with the clean water tank (24), a clean water pump (28) is arranged in the clean water tank (24), and the water outlet of the clean water pump (28) is communicated to the grading vibration sieve (13), and is communicated with a TBM temperature-reducing and dust-settling pipeline (3).
2. The mining TBM rock slurry water-carrying closed-circuit circulation system according to claim 1, characterized in that: the rock slurry grading chamber (1) further comprises a TBM slurry conveyor (16), the feeding end of the TBM slurry conveyor (16) is located in the mine hole, and the discharging end of the TBM slurry conveyor (16) is communicated to the grading vibrating screen (13).
3. The mining TBM rock slurry water-carrying closed-circuit circulation system of claim 2, wherein: and a blast pipe (141) for blowing air into the slurry tank (14) is arranged in the slurry tank (14), and the input end of the blast pipe (141) is communicated with a fan.
4. The mining TBM rock slurry water-carrying closed-circuit circulation system of claim 3, wherein: the diameter of the screen mesh of the grading vibration screen (13) is 3mm-13 mm.
5. The mining TBM rock slurry water-carrying closed-circuit circulation system of claim 4, wherein: the rock slag slurry grading chamber (1) further comprises a slag conveyor (17) for conveying large-particle slag on the grading vibrating screen (13), and the input end of the slag conveyor (17) is communicated with the grading vibrating screen (13).
6. The mining TBM rock slurry water-carrying closed circuit circulation system according to any one of claims 1 to 5, characterized in that: the slurry concentration and pressure filtration chamber (2) further comprises a dosing system (29) for adding a curing agent, and a liquid outlet of the dosing system (29) is communicated with the concentration tank group (21).
7. The mining TBM rock slurry water-carrying closed-circuit circulation system of claim 6, wherein: the concentrating pool group (21) is a pyramid concentrating pool group (21).
8. The mining TBM rock slurry water-carrying closed-circuit circulation system of claim 7, wherein: the slurry concentration and pressure filtration chamber (2) further comprises a filter cake conveyor (210), and the filter cake conveyor (210) is arranged at the discharge port of the pressure filter (23).
9. The mining TBM rock slurry water-carrying closed-circuit circulation system of claim 8, wherein: still include the PLC controller, pit pump (12) hierarchical shale shaker (13) slurry pump (15) concentrate pump (22) pressure filter (23) and clarified water pump (28) all with the PLC controller electricity is connected.
10. A mining TBM rock slag slurry water-carrying closed-circuit circulation process is characterized in that: the process is implemented by the mining TBM rock slurry water-carrying closed-circuit circulating system of any one of claims 1 to 9, and comprises the following steps:
the pit pump (12) pumps the rock slurry flowing into the sump (11) onto the classifying vibrating screen (13);
large-particle impurities are filtered through the grading vibration screen (13), and small-particle impurities, namely rock slurry, fall into a slurry tank (14);
the slurry pump (15) pumps the small-particle impurities and the rock slurry in the slurry pool (14) to the concentration pool group (21) for concentration and precipitation;
the sediment in the concentration pool group (21) flows to the concentration pump (22) through an underflow pipeline (25) and is sent to a filter press (23) through the concentration pump (22) to be pressed and filtered into a slag cake;
clear water on the concentration tank group (21) and clear water filtered by the filter press (23) can flow into a clear water tank (24) and is sent to the grading vibrating screen (13) and the TBM temperature-reducing and dust-settling pipeline (3) for recycling through a clear water pump (28).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110823101.9A CN113338971B (en) | 2021-07-21 | 2021-07-21 | Mining TBM rock slag slurry water-carrying closed-circuit circulating system and process |
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| CN202110823101.9A CN113338971B (en) | 2021-07-21 | 2021-07-21 | Mining TBM rock slag slurry water-carrying closed-circuit circulating system and process |
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| CN113338971A true CN113338971A (en) | 2021-09-03 |
| CN113338971B CN113338971B (en) | 2023-04-07 |
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| CN212581711U (en) * | 2020-04-15 | 2021-02-23 | 龙腾 | Sewage treatment system installed on TBM tunnel boring machine trolley |
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2021
- 2021-07-21 CN CN202110823101.9A patent/CN113338971B/en active Active
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| JP2001025606A (en) * | 1999-05-11 | 2001-01-30 | Tokyo Tone Kaihatsu Kk | Turbid water cleaning system and apparatus |
| 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 |
| CN103011444A (en) * | 2012-10-30 | 2013-04-03 | 北京中矿艾可沃特科技有限公司 | Under-shaft drilling water treatment device |
| CN110066041A (en) * | 2018-05-16 | 2019-07-30 | 内蒙古中钰泰德煤炭有限公司 | Mine type coal preparation plant combines water treatment system with mine water |
| CN109252871A (en) * | 2018-10-08 | 2019-01-22 | 中铁华隧联合重型装备有限公司 | Mud water type TBM and slurry-water balance type shield machine and its control method |
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| CN113338971B (en) | 2023-04-07 |
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