CN211283947U - Mine water step-by-step filtering system - Google Patents
Mine water step-by-step filtering system Download PDFInfo
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- CN211283947U CN211283947U CN201921379404.0U CN201921379404U CN211283947U CN 211283947 U CN211283947 U CN 211283947U CN 201921379404 U CN201921379404 U CN 201921379404U CN 211283947 U CN211283947 U CN 211283947U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 240
- 238000001914 filtration Methods 0.000 title claims abstract description 109
- 239000012528 membrane Substances 0.000 claims abstract description 69
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 39
- 238000000746 purification Methods 0.000 claims abstract description 33
- 238000001471 micro-filtration Methods 0.000 claims abstract description 29
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 28
- 239000004519 grease Substances 0.000 claims abstract description 6
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 22
- 229910052731 fluorine Inorganic materials 0.000 claims description 22
- 239000011737 fluorine Substances 0.000 claims description 22
- 239000003818 cinder Substances 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 8
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000005374 membrane filtration Methods 0.000 claims 1
- 230000000750 progressive effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000004062 sedimentation Methods 0.000 abstract description 8
- 239000008394 flocculating agent Substances 0.000 abstract description 6
- 239000013618 particulate matter Substances 0.000 abstract description 6
- 239000003651 drinking water Substances 0.000 abstract description 4
- 235000020188 drinking water Nutrition 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 15
- 239000002893 slag Substances 0.000 description 5
- 208000005156 Dehydration Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 3
- 239000003657 drainage water Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002384 drinking water standard Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a mine water step by step filtration system, including two-stage filter unit, ultrafiltration purification unit, first cistern, reverse osmosis unit, second cistern and filter residue processing unit, two-stage filter unit includes one-level filtration structure and flat membrane microfiltration structure, one-level filtration structure filters the particulate matter of mine aquatic size more than 0.3 millimeter, flat membrane microfiltration structure filters the particulate matter of size 0.1 ~ 0.3 millimeter, one-level filtration structure and flat membrane microfiltration structure all adopt the forced filtration mode to filter, do not add the flocculating agent; the ultrafiltration purification unit purifies and intercepts particulate matters and grease matters with the size of more than 0.03 micron, the reverse osmosis unit can reach the filtration precision of 0.0001 micron, and the water after reverse osmosis treatment reaches the index of the quality of drinking water; the filter residue treatment unit collects and dehydrates the filter residue, the whole treatment process is completely equipment-based, and is an automatic continuous treatment process, a sedimentation tank is not required to be built, and the capital investment is low.
Description
Technical Field
The utility model belongs to colliery mine water treatment field especially relates to a mine water filtration system step by step.
Background
The mine water refers to underground water near coal seams and developed roadways in mining areas, and can be generally divided into clean mine water, mine water containing suspended matters, highly mineralized mine water, acidic mine water and mine water containing toxic and harmful elements. For coal mine areas, on one hand, the untreated mine water is discharged randomly, which causes waste of water resources and environmental pollution, and on the other hand, the drinking water in the mine areas has a serious risk of water shortage, so at the end of the last 70 th century, China starts to treat the mine water in coal mines, and the treated mine water is recycled and mainly used for domestic water, mine underground water, coal processing water and the like of workers in the mine areas.
At present, the mine water treatment technology used in China mainly comprises coagulating sedimentation, coagulating sedimentation filtration and the like, but the coagulating sedimentation system has the following problems: firstly, a flocculating agent is required to be added in the treatment process, so that secondary pollution is easily caused; secondly, a sedimentation tank needs to be built, and capital investment is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mine water filtration system step by step need not to add the flocculating agent in carrying out the processing procedure to the mine water, also need not to build the sedimentation tank, and the capital construction investment is little.
In order to solve the above problem, the technical scheme of the utility model is that:
a mine water step-by-step filtering system comprises a two-stage filtering unit, an ultrafiltration purification unit, a first reservoir, a reverse osmosis unit, a second reservoir and a filter residue treatment unit which are sequentially connected by a water pipeline;
the two-stage filtering unit comprises a first-stage filtering structure and a flat membrane microfiltration structure, wherein a water outlet of the first-stage filtering structure is connected with a water inlet of the flat membrane microfiltration structure, the first-stage filtering structure filters particles with the size of more than 0.3 mm in mine water to obtain first filtered water and first filter residues, the flat membrane microfiltration structure comprises a filtering flat membrane and a water tank, the filtering flat membrane is arranged at the upper end of the water tank, the filtering flat membrane filters the particles with the size of 0.1-0.3 mm in the first filtered water to obtain second filtered water and second filter residues, and the second filtered water flows into the water tank under the action of gravity;
a water inlet of the ultrafiltration purification unit is connected with a water outlet of the water tank, a filter membrane is arranged in the ultrafiltration purification unit, particulate matters and grease matters with the size of more than 0.03 micrometer in the second filtered water are intercepted, the second filtered water is purified to obtain third filtered water and third filter residue, a part of the third filtered water is conveyed to the first water reservoir, and the rest of the third filtered water is conveyed to the reverse osmosis unit;
a water inlet of the reverse osmosis unit is connected with a water outlet of the ultrafiltration purification unit, the third filtered water is purified into fourth filtered water, and the fourth filtered water is conveyed into the second water storage tank;
the filter residue processing unit enter the cinder notch with the row's cinder notch of one-level filtration structure the row's cinder notch of flat membrane microfiltration structure reaches ultrafiltration purification unit's row cinder notch links to each other, is used for collecting first filter residue the second filter residue reaches the third filter residue, and right first filter residue the second filter residue reaches the third filter residue carries out dehydration.
Preferably, the device further comprises a fluorine removal device, the fluorine removal device is arranged between the two-stage filtering unit and the ultrafiltration purification unit, a water inlet of the fluorine removal device is connected with a water outlet of the water tank, a water outlet of the fluorine removal device is connected with a water inlet of the ultrafiltration purification unit, a fluorine removal agent is added into the fluorine removal device, and the second filtered water is subjected to fluorine removal treatment.
Preferably, a buffer water tank is arranged between the first-stage filtering structure and the flat membrane microfiltration structure, a water outlet of the first-stage filtering structure is connected with a water inlet of the buffer water tank, a water outlet of the buffer water tank is connected with a water inlet end of the filtering flat membrane, and the buffer water tank is used for containing the first filtered water.
Preferably, an automatic cleaner is arranged at the upper end of the filtering flat membrane, and the automatic cleaner reciprocates at the upper end of the filtering flat membrane and is used for cleaning the second filter residue.
Preferably, the filtering flat membrane is a stainless steel filtering flat membrane.
Preferably, the filter residue processing unit includes album cinder notch and plate and frame filter press, the cinder notch that advances in album cinder notch with one-level filtration's row cinder notch flat membrane microfiltration structure reaches ultrafiltration purification unit's row cinder notch links to each other, is used for collecting first filter residue the second filter residue reaches the third filter residue, the row cinder notch in album cinder notch with plate and frame filter press's entering cinder notch links to each other, plate and frame filter press is used for right first filter residue the second filter residue reaches the third filter residue dewaters.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
1) the utility model provides a mine water step by step filtration system, including the two-stage filter unit who connects with conduit in proper order, ultrafiltration purification unit, first cistern, reverse osmosis unit, second cistern and filter residue processing unit, two-stage filter unit includes one-level filtration structure and flat membrane microfiltration structure, one-level filtration structure filters the particulate matter of mine aquatic size more than 0.3 millimeter, obtain first drainage water and first filter residue, flat membrane microfiltration structure filters the particulate matter that the first drainage water middle size is 0.1 ~ 0.3 millimeter, obtain second drainage water and second filter residue, one-level filtration structure and flat membrane microfiltration structure all adopt the compulsory filtration mode to filter, do not add the flocculating agent; the ultrafiltration purification unit purifies the second filtered water to obtain third filtered water and third filter residue, and the third filtered water after ultrafiltration treatment reaches the water quality indexes of power plant recycling and underground water use; the reverse osmosis unit purifies the third filtered water into fourth filtered water, and the fourth filtered water after reverse osmosis treatment reaches the water quality index of drinking water; the filter residue processing unit collects the first filter residue, the second filter residue and the third filter residue, and carries out dehydration treatment, the whole processing process is completely equipment-based, and is an automatic continuous processing process, a sedimentation tank does not need to be built, and the capital investment is small.
Drawings
FIG. 1 is a schematic diagram of a mine water stage-by-stage filtration system;
FIG. 2 is a layout diagram of the mine water stage-by-stage filtration system.
Description of reference numerals:
1: a two-stage filtration unit; 11: a primary filtering structure; 12: a flat membrane microfiltration structure; 2: an ultrafiltration purification unit; 21: a first reservoir; 3: a reverse osmosis unit; 31: a second reservoir; 4: a filter residue processing unit; 41: a slag collecting tank; 42: a plate-and-frame filter press; 5: a fluorine removal device.
Detailed Description
The mine water stage-by-stage filtering system provided by the invention is further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
A certain coal mine is taken as a model for explanation, the average water quantity of coal mine water is 2800t/d, the peak water quantity is 4000t/d, the underground production water of the coal mine is 800t/d, the coal washing water is 700t/d, the worker domestic water is 300-400 t/d, and the residual purified 1000-grade 2000t/d mine water is used for water supplement of a power plant. According to the actual water consumption condition of the coal mine field, the utility model also provides a mine water step-by-step filtering system, as shown in fig. 1 and 2, fig. 1 is a schematic diagram of the mine water step-by-step filtering system, fig. 2 is a layout diagram of the mine water step-by-step filtering system, the utility model provides a mine water step-by-step filtering system which comprises a two-stage filtering unit 1, an ultrafiltration purifying unit 2, a first reservoir 21, a reverse osmosis unit 3, a second reservoir 31 and a filter residue processing unit 4 which are sequentially connected by a water pipeline; the two-stage filtering unit 1 comprises a first-stage filtering structure 11 and a flat membrane microfiltration structure 12, wherein a water outlet of the first-stage filtering structure 11 is connected with a water inlet of the flat membrane microfiltration structure 12, the first-stage filtering structure 11 filters particles with the size of more than 0.3 mm in mine water to obtain first filtered water and first filter residues, the flat membrane microfiltration structure 12 comprises a filtering flat membrane and a water tank, the filtering flat membrane is arranged at the upper end of the water tank, the filtering flat membrane filters the particles with the size of 0.1-0.3 mm in the first filtered water to obtain second filtered water and second filter residues, and the second filtered water flows into the water tank under the action of gravity; a water inlet of the ultrafiltration purification unit 2 is connected with a water outlet of the water tank, a filter membrane is arranged in the ultrafiltration purification unit 2, particulate matters and grease matters with the size of more than 0.03 micrometer in the second filtered water are intercepted, the second filtered water is purified to obtain third filtered water and third filter residues, a part of the third filtered water is conveyed to the first water storage tank 21, and the rest part of the third filtered water is conveyed to the reverse osmosis unit 3; a water inlet of the reverse osmosis unit 3 is connected with a water outlet of the ultrafiltration purification unit 2, the third filtered water is purified into fourth filtered water, and the fourth filtered water is conveyed into a second water storage tank 31; and a slag inlet of the filter residue processing unit 4 is connected with a slag discharge port of the 4-stage filtering structure 11, a slag discharge port of the flat membrane microfiltration structure 12 and a slag discharge port of the ultrafiltration purification unit 2, and is used for collecting first filter residue, second filter residue and third filter residue and dehydrating the first filter residue, the second filter residue and the third filter residue.
The two-stage filtering unit 1 is composed of a first-stage filtering structure 11 and a flat membrane micro-filtering structure 12, in this embodiment, the two-stage filtering unit 1 is a flat membrane micro-filtering integrated machine, and includes a first-stage filtering structure 11 at the front end and a flat membrane micro-filtering structure 12 at the rear end, the first-stage filtering structure 11 filters coal slime coal dust particles with a size of more than 0.3 mm by using a coarse filtering screen to obtain first filtered water and first filtered residues, the first filtered residues are isolated on the surface of the filtering screen and are discharged by a residue discharge port, the first filtered water after filtering enters the flat membrane micro-filtering structure 12, the flat membrane micro-filtering structure 12 includes a flat filtering membrane and a water tank, the flat filtering membrane is arranged at the upper end of the water tank, in this embodiment, the flat filtering membrane is a stainless steel flat membrane, the flat membrane micro-filtering structure 12 filters the particles with a size of 0.1-0.3 mm in the first filtered water by using the, the second filter residue is intercepted on the surface of the stainless steel flat membrane, the second filtered water flows into the water tank below the stainless steel flat membrane under the action of gravity and is discharged, in the embodiment, a buffer water tank is arranged between the first-stage filtering structure 11 and the flat membrane microfiltration structure 12, the water outlet of the first-stage filtering structure 11 is connected with the water inlet of the buffer water tank, the water outlet of the buffer water tank is connected with the water inlet end of the filtering flat membrane, the buffer water tank is used for containing the first filtered water, an automatic cleaner is arranged at the upper end of the filtering flat membrane, and the automatic cleaner reciprocates at the upper end of the filtering flat membrane and is used for cleaning the second filter residue. The primary filtering structure 11 and the flat membrane microfiltration structure 12 both adopt a forced filtering mode to filter mine water raw water, a flocculating agent is not added, and the whole machine equipment is operated fully automatically. The water quality monitoring indexes of the raw water of the mine water are shown in table 1.
TABLE 1 mine water raw water quality monitoring index
Preferably, the mine water step-by-step filtering system further comprises a fluorine removal device 5, the fluorine removal device is arranged between the two-stage filtering unit 1 and the ultrafiltration purification unit 2, a water inlet of the fluorine removal device 5 is connected with a water outlet of the water tank, a water outlet of the fluorine removal device 5 is connected with a water inlet of the ultrafiltration purification unit 2, a fluorine removal agent is added into the fluorine removal device 5, and the second filtered water is subjected to fluorine removal treatment.
The water inlet of the ultrafiltration purification unit 2 is connected with the water outlet of the water tank, in the embodiment, the ultrafiltration purification unit 2 adopts a PTFE hybrid ultrafiltration membrane device, the device is internally provided with a PTFE hybrid ultrafiltration membrane which is used for intercepting particulate matters and grease matters with the size of more than 0.03 micron in the second filtered water, purifying the second filtered water to obtain third filtered water and third filter residue, further reducing indexes such as COD, BOD, ammonia nitrogen, chroma, turbidity, total phosphorus and the like in the second filtered water, the third filtered water obtained after ultrafiltration treatment has no flocculation, clear effluent, no precipitation and grease, reaches the water quality index of power plant recycling and underground water use, one part of the third filtered water is conveyed to a first reservoir 21, the water quality index table 2 shows that the residual third filtered water is delivered to the reverse osmosis unit 3 when the water quality index table is used for the water for the underground coal mine production and the water for the power plant.
TABLE 2 Water quality index of the third filtered Water
The water inlet of the reverse osmosis unit 3 is connected with the water outlet of the ultrafiltration purification unit 2, the reverse osmosis unit 3 adopts a reverse osmosis system, the reverse osmosis system comprises a cartridge filter, a high-pressure pump, a reverse osmosis membrane group, a cleaning system and a control instrument, wherein the reverse osmosis membrane group purifies third filtered water into fourth filtered water and conveys the fourth filtered water into a second water storage tank 31; the reverse osmosis treatment can reach 0.0001 micron filtration precision, can get rid of the soluble salinity, colloid, organic matter and microorganism in the third filtered water, and the fourth filtered water that obtains after the reverse osmosis treatment can reach the drinking water standard, and the fourth filtered water is mainly carried to the staff's dormitory of coal mine factory for staff's domestic water, carries to near resident's building for resident's domestic water and is used for the precision equipment water under the coal mine, and table 3 is the water quality index of fourth filtered water.
TABLE 3 Water quality index of the fourth filtered Water
The utility model provides a pair of mine water is filtration system step by step, including two-stage filter unit 1 with conduit connection in proper order, ultrafiltration purification unit 2, first cistern 21, reverse osmosis unit 3, second cistern 31 and filter residue processing unit 4, two-stage filter unit 1 includes one-level filtration 11 and flat membrane microfiltration structure 12, one-level filtration 11 filters the particulate matter of mine water mesoscopic size more than 0.3 millimeter, obtain first drainage and first filter residue, flat membrane microfiltration structure 12 filters the particulate matter that the first drainage mesoscopic size is 0.1 ~ 0.3 millimeter, obtain second drainage and second filter residue, one-level filtration 11 and flat membrane microfiltration structure 12 all adopt the force-feed filtration mode to filter, exempt from to add the flocculating agent; the ultrafiltration purification unit 2 purifies the second filtered water to obtain third filtered water and third filter residue, and the third filtered water after ultrafiltration treatment reaches the water quality indexes of power plant recycling and underground water; the reverse osmosis unit 3 purifies the third filtered water into fourth filtered water, and the fourth filtered water after reverse osmosis treatment reaches the water quality index of drinking water; the filter residue processing unit 4 collects the first filter residue, the second filter residue and the third filter residue, and carries out dehydration treatment, the whole treatment process is completely equipment-based, and is an automatic continuous treatment process, a sedimentation tank does not need to be built, and the capital investment is small.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (6)
1. A mine water step-by-step filtering system is characterized by comprising a two-stage filtering unit, an ultrafiltration purification unit, a first reservoir, a reverse osmosis unit, a second reservoir and a filter residue treatment unit which are sequentially connected by a water pipeline;
the two-stage filtering unit comprises a first-stage filtering structure and a flat membrane microfiltration structure, wherein a water outlet of the first-stage filtering structure is connected with a water inlet of the flat membrane microfiltration structure, the first-stage filtering structure filters particles with the size of more than 0.3 mm in mine water to obtain first filtered water and first filter residues, the flat membrane microfiltration structure comprises a filtering flat membrane and a water tank, the filtering flat membrane is arranged at the upper end of the water tank, the filtering flat membrane filters the particles with the size of 0.1-0.3 mm in the first filtered water to obtain second filtered water and second filter residues, and the second filtered water flows into the water tank under the action of gravity;
a water inlet of the ultrafiltration purification unit is connected with a water outlet of the water tank, a filter membrane is arranged in the ultrafiltration purification unit, particulate matters and grease matters with the size of more than 0.03 micrometer in the second filtered water are intercepted, the second filtered water is purified to obtain third filtered water and third filter residue, a part of the third filtered water is conveyed to the first water reservoir, and the rest of the third filtered water is conveyed to the reverse osmosis unit;
a water inlet of the reverse osmosis unit is connected with a water outlet of the ultrafiltration purification unit, the third filtered water is purified into fourth filtered water, and the fourth filtered water is conveyed into the second water storage tank;
the filter residue processing unit enter the cinder notch with the row's cinder notch of one-level filtration structure the row's cinder notch of flat membrane microfiltration structure reaches ultrafiltration purification unit's row cinder notch links to each other, is used for collecting first filter residue the second filter residue reaches the third filter residue, and right first filter residue the second filter residue reaches the third filter residue carries out dehydration.
2. The mine water stage-by-stage filtration system according to claim 1, further comprising a fluorine removal device, wherein the fluorine removal device is disposed between the two-stage filtration unit and the ultrafiltration purification unit, a water inlet of the fluorine removal device is connected with a water outlet of the water tank, a water outlet of the fluorine removal device is connected with a water inlet of the ultrafiltration purification unit, and a fluorine removal agent is added into the fluorine removal device to perform fluorine removal treatment on the second filtered water.
3. The mine water stage-by-stage filtering system according to claim 1, wherein a buffer water tank is arranged between the primary filtering structure and the flat membrane microfiltration structure, a water outlet of the primary filtering structure is connected with a water inlet of the buffer water tank, a water outlet of the buffer water tank is connected with a water inlet end of the flat membrane filtration, and the buffer water tank is used for containing the first filtered water.
4. The mine water stage-by-stage filtration system according to claim 1, wherein an automatic cleaner is provided at an upper end of the flat filtration membrane, and the automatic cleaner reciprocates at the upper end of the flat filtration membrane to clean the second filter residue.
5. The mine water stage-by-stage filtration system of claim 1, wherein the flat filtration membrane is a stainless steel flat filtration membrane.
6. The mine water progressive filtering system according to claim 1, wherein the filter residue processing unit comprises a residue collection tank and a plate and frame filter press, a residue inlet of the residue collection tank is connected with a residue discharge port of the first-stage filtering structure, a residue discharge port of the flat membrane microfiltration structure and a residue discharge port of the ultrafiltration purification unit, and is used for collecting the first filter residue, the second filter residue and the third filter residue, the residue discharge port of the residue collection tank is connected with the residue inlet of the plate and frame filter press, and the plate and frame filter press is used for dehydrating the first filter residue, the second filter residue and the third filter residue.
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| CN110563195A (en) * | 2019-08-23 | 2019-12-13 | 内蒙古格林森环境科技有限公司 | Mine water step-by-step filtering process and system |
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| CN110563195A (en) * | 2019-08-23 | 2019-12-13 | 内蒙古格林森环境科技有限公司 | Mine water step-by-step filtering process and system |
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