CN110002543A - A kind of underground coal mine water high-recovery divides salt system and method - Google Patents
A kind of underground coal mine water high-recovery divides salt system and method Download PDFInfo
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- CN110002543A CN110002543A CN201910355043.4A CN201910355043A CN110002543A CN 110002543 A CN110002543 A CN 110002543A CN 201910355043 A CN201910355043 A CN 201910355043A CN 110002543 A CN110002543 A CN 110002543A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 511
- 150000003839 salts Chemical class 0.000 title claims abstract description 87
- 239000003245 coal Substances 0.000 title claims abstract description 62
- 238000011084 recovery Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 260
- 238000001728 nano-filtration Methods 0.000 claims abstract description 141
- 239000012528 membrane Substances 0.000 claims abstract description 124
- 239000012141 concentrate Substances 0.000 claims description 71
- 238000004519 manufacturing process Methods 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 8
- 239000003643 water by type Substances 0.000 claims description 7
- 230000004087 circulation Effects 0.000 claims description 4
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000005185 salting out Methods 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 8
- 229940079593 drug Drugs 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 238000004090 dissolution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007616 round robin method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000013579 wash concentrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/025—Reverse osmosis; Hyperfiltration
- B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention discloses a kind of underground coal mine water high-recoveries to divide salt system, including stoste pipe, total water producing pipe, total concentrated water pipe, one section of nanofiltration membrane group, one section of high-pressure pump, one section of water producing pipe, one section of concentrated water pipe, two sections of nanofiltration membrane groups, two sections of booster pumps, two sections of water producing pipes, two sections of concentrated water pipes, three sections of nanofiltration membrane groups, three sections of circulating pumps, three sections of water producing pipes, three sections of concentrated water pipes and three sections of circulating water pipes, one section of high pressure, two sections of pressurizations, three sections of nanofiltration processes recycled are carried out to stoste.The present invention can be improved point salt efficiency and a rate of recovery, prevents fouling blockage in pipeline, and can carry out segmented cleaning to different nanofiltration membrane groups, improves cleaning efficiency and quality.Meanwhile the present invention also provides a kind of underground coal mine water high-recoveries to divide salt method, and point salt efficiency and an inorganic salts rate of recovery can be improved, make full use of nanofiltration membrane, additionally it is possible to prevent salting out in concentrated water, block pipeline.
Description
Technical field
The present invention relates to underground coal mine water-treatment technology field, especially a kind of underground coal mine water high-recovery divides salt system
And method.
Background technique
Underground coal mine water water is huge, and national year total release reaches 2,200,000,000 cubes, is a kind of water resource that comparison is precious,
After being effectively treated to underground coal mine water, industrial water, domestic water or otherwise recycle-water can be used as.This is not
Mine water resource critical shortage problem can only effectively solved, while reasonable utilization also has been carried out to underground coal mine water,
The use for reducing underground water, improves environmental quality, and it is fast-developing to be conducive to China's economic heath.
But underground coal mine water is due to the influence of environment and human factor, and water quality is complicated, and total ion concentration is than general surface water
It is much higher, and be greatly sulfate ion, this characteristic increases the utilization difficulty of underground coal mine water, therefore coal mine
Mine water flocculates etc. other than general processing in addition to carrying out, it is also necessary to separate to inorganic salts a large amount of in water.Currently, embrane method
Salt is divided mainly to utilize nanofiltration membrane, but the disadvantage that the generally existing rate of recovery is low, also, the salt content in underground coal mine water is high, pipe
The easy fouling blockage of road inner wall, cleaning is difficult, reduces the efficiency for dividing salt.
Summary of the invention
The object of the present invention is to provide a kind of underground coal mine water high-recoveries to divide salt system, can be improved inorganic salts and returns
Yield can carry out segmented cleaning to different nanofiltration membrane groups, improve cleaning efficiency and quality, and improve concentrated water flow velocity, prevent
Concentrated water fouling in pipeline blocks pipeline；Meanwhile the present invention also provides a kind of underground coal mine water high-recoveries to divide salt method,
Point salt efficiency and the inorganic salts rate of recovery can be improved, and by the method for pressurization cycle, increase concentrated water flow, prevent pipeline knot
Dirt blocking.
In order to solve the above technical problems, the present invention adopts the following technical scheme that: a kind of underground coal mine water high-recovery point
Salt system include stoste pipe, total water producing pipe, total concentrated water pipe, one section of nanofiltration membrane group, one section of high-pressure pump, one section of water producing pipe, one section it is dense
Water pipe, two sections of nanofiltration membrane groups, two sections of booster pumps, two sections of water producing pipes, two sections of concentrated water pipes, three sections of nanofiltration membrane groups, three sections of circulating pumps, three
Section water producing pipe, three sections of concentrated water pipes and three sections of circulating water pipes.Inorganic salts in stoste reach high-recovery by three sections of nanofiltrations, described
Nanofiltration membrane quantity is different in one section of nanofiltration membrane group, two sections of nanofiltration membrane groups and three sections of nanofiltration membrane groups, and quantity ratio is 2:1:1.
The water inlet of the stoste Guan Yuyi sections of nanofiltration membrane groups connects, and one section of high-pressure pump is set on stoste pipe, and one section
The effect of high-pressure pump is to be increased to stoste pressure to meet one section of nanofiltration cross-film condition, one section of the production mouth of a river of one section of nanofiltration membrane group
Water producing pipe is connect with total water producing pipe, and the concentrated water spout of one section of nanofiltration membrane group connects through the water inlet of one section of concentrated water pipe and two sections of nanofiltration membrane groups
It connects, two sections of booster pumps are set on one section of concentrated water pipe, and stoste is after one section of nanofiltration membrane group, pressure decline, to meet subsequent cross-film
Pressure requirements are pressurized.For stoste after one section of nanofiltration membrane group, concentrated water carries out two sections of pressurizing filters.
Two sections of the production mouth of a river water producing pipe of two sections of nanofiltration membrane groups is connect with total water producing pipe, the concentrated water of two sections of nanofiltration membrane groups
Water inlet connection of the mouth through Guan Yusan sections of nanofiltration membrane groups of two sections of concentrated waters, three sections of circulating pumps are set on two sections of concentrated water pipes.
Three sections of the production mouth of a river water producing pipe of three sections of nanofiltration membrane groups is connect with total water producing pipe, and the one of three sections of concentrated water pipes
End is connect with the concentrated water spout of three sections of nanofiltration membrane groups, and the other end is connect with total concentrated water pipe.One end and three of three sections of circulating water pipes
Section concentrated water pipe connection, the other end is connect with two sections of concentrated water pipes, and junction is located in front of three sections of circulating pumps, by three sections of nanofiltrations
Afterwards, sulfate ion concentration is very high in concentrated water, to prevent sulfate from causing concentration polarization in turn in pipeline because flow velocity is too low
Fouling blocks pipeline, and increasing by three sections of circulating pumps recycles concentrated water, increases concentrated water flow.
Underground coal mine water high-recovery point salt system above-mentioned further includes cleaning system, cleaning system include cleaning water tank,
Produce water return pipe, cleaning concentrate recirculation general pipeline, personal water pipe, cleaning pump, cartridge filter, total cleaning pipe, one section of cleaning feed liquor
Pipe, two sections of cleaning inlet tubes, three sections of cleaning inlet tubes, one section of cleaning concentrate recirculation pipe, two sections of cleaning concentrate recirculation pipes, three Duan Qing
Wash concentrate recirculation pipe, dosing mouth and heater.
Described production water return pipe one end is connect with total water producing pipe, and junction is located at three sections of water producing pipes and connect with total water producing pipe
The rear at place, the other end for producing water return pipe are connect with the top of cleaning water tank, and system production water is used for the cleaning of nanofiltration membrane.
One end of three sections of cleanings concentrate recirculation pipe and three sections of concentrated water pipes, and junction is located at three sections of concentrated water pipes and three sections
The other end of the lower section of circulating water pipe junction, three sections of cleaning concentrate recirculation pipes is connected with one end of cleaning concentrate recirculation general pipeline,
The other end of the cleaning concentrate recirculation general pipeline is connected with the top of cleaning water tank.Guan Jingyi sections of cleaning concentrated waters of one section of concentrated water
Return pipe is connect with cleaning concentrate recirculation general pipeline, and the junction of one section of Guan Yuyi sections of concentrated water cleaning concentrate recirculation pipe is located at two sections
In front of booster pump.Two sections of concentrated water pipes are connect through two sections of cleaning concentrate recirculation pipes with cleaning concentrate recirculation general pipeline, and two sections dense
The junction of water pipe and two sections of cleaning concentrate recirculation pipes is located at the front of three sections of circulating water pipes and two sections of concentrated water pipe junctions, will be
Concentrated water of uniting is used for the cleaning of nanofiltration membrane.
Described total cleaning pipe one end is connect with the water outlet of cleaning water tank, and one end of the other end and three sections of cleaning inlet tubes connects
It connects, the other end of three sections of cleaning inlet tubes is connect with two sections of concentrated water pipes, and the connection of three sections of cleanings inlet tubes and two sections of concentrated water pipes
Place is located at three sections of circulating pump rears, and one end of one section of cleaning inlet tube is connect with total cleaning pipe, the other end and stoste Guan Lian
It connects, and the junction of one section of cleaning inlet tube and stoste pipe is located at one section of high-pressure pump rear, described two sections are cleaned the one of inlet tube
End is connect with total cleaning pipe, and the other end is connect with one section of concentrated water pipe, and the junction of two sections of cleanings inlet tubes and one section of concentrated water pipe
It, can be real by one section of cleaning inlet tube, two sections of cleaning inlet tubes and three sections of cleaning inlet tubes positioned at the rear of two sections of booster pumps
The segmented cleaning of existing nanofiltration membrane group.
The cleaning tank top is additionally provided with dosing mouth, cleans inside water tank and is additionally provided with heater, molten for improving drug
Speed is solved, the personal water pipe is connect with cleaning tank top, and the cleaning pump and cartridge filter are sequentially set to total cleaning pipe
On, the drug that cartridge filter can prevent sundries in personal water and not be completely dissolved damages nanofiltration membrane.
Underground coal mine water high-recovery point salt system above-mentioned further includes first check-valve and second check-valve, and described first
Check-valves is set on two sections of concentrated water pipes, and is located at the front of three sections of circulating water pipes and two sections of concentrated water pipe junctions, and described second stops
It returns valve to be set on three sections of circulating water pipes, check-valves can prevent liquid from flowing backwards, and avoid because of two sections of concentrated water pipes and three sections of circulating water pipes
Middle pressure it is different and make wherein a pipeline flow backwards.
Underground coal mine water high-recovery above-mentioned divides in salt system, and cleaning system further includes clean cycle pipeline, described clear
One end of circulating line is washed connect with the top of cleaning water tank, the other end is connect with total cleaning pipe, and clean cycle pipeline with always
Between cleaning pump and cartridge filter, clean cycle pipeline can make the cleaning solution cleaned in water tank for the junction of cleaning pipe
It circulates, is conducive to drug dissolution.
Underground coal mine water high-recovery point salt system above-mentioned further includes control unit, specially two pressure switches, six
A control valve, one section of check-valves, two sections of check-valves, three sections of check-valves, total yield Water Check Valve and total concentrated water shut-off valve, it is described two
Pressure switch is respectively arranged on the stoste pipe at one section of high-pressure pump both ends, and pressure switch controls one section of high-pressure pump, prevents hypotony
Or one section of nanofiltration membrane group of excessively high damage, one section of check-valves are set to the stoste pipe after the pressure switch at one section of high-pressure pump rear
On, two control valves are additionally provided on the stoste pipe, one of them is located in front of one section of high-pressure pump before pressure switch, another
Positioned at one section of check-valves rear.
There are two control valve and two sections of check-valves by one section of concentrated water Guan Shangshe, after two sections of check-valves are set to two sections of booster pumps
Side, one of control valve are set in front of two sections of booster pumps, and are located at the company of one section of concentrated water pipe and one section of cleaning concentrate recirculation pipe
Place rear is connect, another control valve is set to two sections of check-valves rears, and is located at one section of concentrated water pipe and two sections of cleaning inlet tube connections
The front at place.
Three sections of check-valves and a control valve are arranged in sequence on two sections of concentrated water pipes at three sections of circulating pump rears.
The total yield Water Check Valve and a control valve are sequentially set on total water producing pipe at three sections of water producing pipe rears, and total yield
Water Check Valve, which is located at, to be produced in front of water return pipe and total water producing pipe junction, and the effect of total yield Water Check Valve is to prevent total water producing pipe from carrying on the back
It presses through greatly, causes to produce water reflux, control valve is located at the rear for producing water return pipe and total water producing pipe junction, and total concentrated water shut-off valve is set
In on total concentrated water pipe, total concentrated water shut-off valve can manually adjust aperture, control the flow of concentrated water.
Cleaning system in underground coal mine water high-recovery point salt system above-mentioned further includes control unit, and specially 12
A control valve, the production water return pipe, personal water pipe, one section of cleaning inlet tube, two sections of cleaning inlet tubes, three sections of cleaning feed liquors
A control is equipped on pipe, one section of cleaning concentrate recirculation pipe, two sections of cleaning concentrate recirculation pipes and three sections of cleaning concentrate recirculation pipes
Valve.
It being set in total cleaning pipe there are three control valve, one of control valve is located between cleaning water tank and cleaning pump,
Other two control valve is located at cartridge filter two sides, and the control valve at cartridge filter rear be located at cartridge filter and
Between clean cycle pipeline, the clean cycle pipeline is equipped with a control valve.
Underground coal mine water high-recovery point salt system above-mentioned further includes that pressure transmitter, flow transmitter and conductivity pass
A pressure transmitter and a flow pick-up is arranged in sequence on the stoste pipe convenient for checking the working condition of system in sensor
Device, and be located between the control valve and one section of cleaning inlet tube at one section of check-valves rear.
Two pressure transmitters and a flow transmitter are arranged in sequence on one section of concentrated water pipe, one of pressure becomes
Device is sent to be set between the control valve in front of one section of cleaning concentrate recirculation pipe and two sections of booster pumps, another pressure transmitter and flow
Transmitter is set between the control valve and two sections of cleaning inlet tubes at two sections of check-valves rears.
Two pressure transmitters and a flow transmitter are arranged in sequence on two sections of concentrated water pipes, one of pressure becomes
Device is sent to be set between two sections of cleanings concentrate recirculation pipe and first check-valves, another pressure transmitter and flow transmitter are set to three
Between the control valve and three sections of cleaning inlet tubes at section check-valves rear.
A pressure transmitter and a flow transmitter are arranged in sequence on total concentrated water pipe, and is located at three sections of concentrated water pipes
Between total concentrated water shut-off valve.
A conductivity sensor, a pressure transmitter and a flow pick-up are arranged in sequence on total water producing pipe
Device, wherein conductivity sensor and pressure transmitter are set to three sections of water producing pipes and produce between water return pipe, and are located at total yield water and stop
It returns in front of valve, flow transmitter is located at the rear of control valve on total water producing pipe.
A flow transmitter is equipped on one section of water producing pipe, two sections of water producing pipes and three sections of water producing pipes.
Underground coal mine water high-recovery point salt system above-mentioned further includes pressure gauge, flowmeter, thermometer, pH table and liquid level
Meter is set in total cleaning pipe there are three pressure gauge, one of pressure gauge for the working condition of cleaning system check at any time
Between cleaning pump and clean cycle pipeline, other two pressure gauge is respectively arranged on cartridge filter two sides, and is located at security personnel
Between filter and two sides control valve.The cleaning water tank is equipped with thermometer and liquidometer.It is set on the clean cycle pipeline
There is pH table.It is additionally provided with flowmeter in total cleaning pipe, and is located at before the control valve in front of cartridge filter.
Underground coal mine water high-recovery point salt system above-mentioned further includes sampling valve, one section of water producing pipe, two sections of production water
It is equipped with sampling valve on pipe and three sections of water producing pipes, the production water of nanofiltration membrane group is sampled, checks the working condition of nanofiltration membrane group.
A kind of underground coal mine water high-recovery divides salt method, divides salt system using underground coal mine water high-recovery above-mentioned,
Three sections of nanofiltrations are carried out to underground coal mine water and divide salt, are included the following steps:
S100: underground coal mine water enters underground coal mine water high-recovery above-mentioned along stoste pipe after initial flocculation filters
Divide salt system, flows through after one section of high-pressure pump is boosted and reach 16bar or more, specifically, can be 16.19bar, meet nanofiltration
The intake pressure requirement of film carries out one section of high pressure and divides salt, the pressure of one section of concentrated water is 15.58bar into one section of nanofiltration membrane group；
The production water of S200: one section of nanofiltration membrane group enters total yield water pipe collecting through one section of water producing pipe, and concentrated water is along one section of concentrated water pipe
Two sections of booster pumps supplement pressure loss 7.01bar are flowed through, pressurized pressure reaches 22.59bar, into two sections of nanofiltration membrane groups,
It carries out two sections of pressurizations and divides salt, two sections of concentrated water outlet pressures are 21.96bar；
The production water of S300: two sections of nanofiltration membrane groups enters total yield water pipe collecting through two sections of water producing pipes, and concentrated water is along two sections of concentrated water pipes
Three sections of circulating pumps are flowed through, pressure reaches 34.56bar after boosting, into three sections of nanofiltration membrane groups, carries out three sections of points of salt；
The concentrated water that S400: three sections of nanofiltration membrane groups generate flows back to three sections of circulating pumps through three sections of concentrated water pipes and three sections of circulating water pipes,
Three sections of nanofiltration membrane groups are again introduced into, three sections of circulations is carried out and divides salt；
The production water of S500: three sections of nanofiltration membrane groups enters total yield water pipe collecting through three sections of water producing pipes, three sections of nanofiltration membrane groups it is dense
Water enters total dense water pipe collecting through three sections of concentrated water pipes, and salt is divided to complete.
Underground coal mine water high-recovery above-mentioned divides salt method, further includes segmented cleaning process, includes the following steps:
P100: the production water return pipe, cleaning concentrate recirculation general pipeline and personal water pipe are to cleaning cistern water supply, wherein one section
Also cleaned concentrate recirculation general pipeline is collected the concentrated water of nanofiltration membrane group and two sections of nanofiltration membrane groups, passes through the dosing on cleaning water tank
Mouth addition cleaning drug into cleaning water tank is dissolved in the cleaning solution in cleaning water tank；
P200: the cleaned pump pressurization of cleaning solution in cleaning water tank enters total cleaning pipe, receives to one section of nanofiltration membrane group, two sections
Filter membrane group and three sections of nanofiltration membrane groups carry out segmented cleaning；
P300: one section of cleaning inlet tube, one section of cleaning concentrate recirculation pipe are opened and produces the valve on water return pipe, cleaning solution
One section of nanofiltration membrane group is flowed through, the cleaning of one section of nanofiltration membrane group is completed；
P400: two sections of cleaning inlet tubes, two sections of cleaning concentrate recirculation pipes are opened and produce the valve on water return pipe, cleaning solution
Two sections of nanofiltration membrane groups are flowed through, the cleaning of two sections of nanofiltration membrane groups is completed；
P500: three sections of cleaning inlet tubes, three sections of cleaning concentrate recirculation pipes are opened and produce the valve on water return pipe, cleaning solution
Three sections of nanofiltration membrane groups are flowed through, the cleaning of three sections of nanofiltration membrane groups is completed.
Compared with prior art, the invention has the beneficial effects that: the present invention provides a kind of recycling of underground coal mine water height
Rate divides salt system, can be improved the rate of recovery of point salt, and the average rejection to divalent salts is 98%, realizes monovalent salt and divalent salts
Separation, by one section of high pressure, two sections pressurization, three sections of round-robin methods avoid concentrated water flow velocity it is too low cause concentration polarization so that tie
Dirt, and different nanofiltration membrane set of segmentation can be cleaned, it ensure that cleaning quality, the service life of nanofiltration membrane group can be improved；
The present invention gives a kind of underground coal mine water high-recovery and divides salt method, and underground coal mine water is after three sections of nanofiltrations, Ke Yida
To 85% high-recovery.
Detailed description of the invention
Fig. 1 is operational process schematic diagram of the invention；
Fig. 2 is the operation principle schematic diagram of three sections of nanofiltrations of the invention.
The meaning of appended drawing reference: 1- stoste pipe, the total water producing pipe of 2-, the total concentrated water pipe of 3-, 4- first check-valve, the second non-return of 5-
Valve, 6- pressure switch, 7- control valve, 8- total yield Water Check Valve, the total concentrated water shut-off valve of 9-, 10- pressure transmitter, 11- flow become
Send device, 12- conductivity sensor, 13- pressure gauge, 14- flowmeter, 15- thermometer, 16-pH table, 17- liquidometer, 18- sampling
Valve, mono- section of nanofiltration membrane group of 100-, mono- section of high-pressure pump of 101-, mono- section of water producing pipe of 102-, mono- section of concentrated water pipe of 103-, mono- section of non-return of 104-
Valve, bis- sections of nanofiltration membrane groups of 200-, bis- sections of booster pumps of 201-, bis- sections of water producing pipes of 202-, bis- sections of concentrated water pipes of 203-, bis- sections of non-returns of 204-
Valve, tri- sections of nanofiltration membrane groups of 300-, tri- sections of circulating pumps of 301-, tri- sections of water producing pipes of 302-, tri- sections of concentrated water pipes of 303-, tri- Duan Xunhuan of 304-
Water pipe, tri- sections of check-valves of 305-, 401- clean water tank, and 402- produces water return pipe, and 403- cleans concentrate recirculation general pipeline, and 404- is personal
Water pipe, 405- cleaning pump, 406- cartridge filter, the total cleaning pipe of 407-, mono- section of cleaning inlet tube of 408-, bis- sections of 409- clean into
Liquid pipe, tri- sections of cleaning inlet tubes of 410-, mono- section of cleaning concentrate recirculation pipe of 411-, bis- sections of cleaning concentrate recirculation pipes of 412-, 413- tri-
Duan Qingxi concentrate recirculation pipe, 414- dosing mouth, 415- heater, 416- clean cycle pipeline.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific embodiment
The embodiment of the present invention 1: as shown in Figure 1, a kind of underground coal mine water high-recovery point salt system include stoste pipe 1,
Total water producing pipe 2,3, one sections of total concentrated water pipe, 100, one sections of nanofiltration membrane group, 101, one sections of high-pressure pump, 102, one sections of water producing pipe concentrated water pipe
103, two sections of 200, two sections of nanofiltration membrane group, 201, two sections of booster pump, 202, two sections of water producing pipe, 203, three sections of concentrated water pipe nanofiltration membrane groups
300, three sections of 301, three sections of circulating pump, 302, three sections of water producing pipe concentrated water pipes 303 and three sections of circulating water pipes 304, one section of nanofiltration membrane
100, two sections of nanofiltration membrane groups 200 of group are different with nanofiltration membrane quantity in three sections of nanofiltration membrane groups 300, and quantity ratio is 2:1:1.Stoste
Three sections of nanofiltrations are carried out in system, the high-recovery of inorganic salts are realized, and this system uses equipment with high desalinization nanofiltration membrane, by three
Section nanofiltration, the average rejection to divalent salts are 98%, realize the separation of monovalent salt and divalent salts.
The stoste pipe 1 is connect with the water inlet of one section of nanofiltration membrane group 100, and one section of high-pressure pump 101 is set to stoste pipe 1
On, stoste reaches cross-film requirement through one section of high-pressure pump 101, one section of the production mouth of a river water producing pipe 102 of one section of nanofiltration membrane group 100 and total
Water producing pipe 2 connects, and the concentrated water spout of one section of nanofiltration membrane group 100 connects through the water inlet of one section of concentrated water pipe 103 and two sections of nanofiltration membrane groups 200
It connects, two sections of booster pumps 201 are set on one section of concentrated water pipe 103, and the pressure reduction after one section of nanofiltration is wanted to meet subsequent work
It asks, increases by two sections of booster pumps 201 in front of two sections of nanofiltration membrane groups 200, improve one section of concentrated water pressure.
Two sections of the production mouth of a river water producing pipe 202 of two sections of nanofiltration membrane groups 200 is connect with total water producing pipe 2, two sections of nanofiltration membranes
The concentrated water spout of group 200 is connect through two sections of concentrated water pipes 203 with the water inlet of three sections of nanofiltration membrane groups 300, and three sections of circulating pumps 301 are set to two
On section concentrated water pipe 203.
Three sections of the production mouth of a river water producing pipe 302 of three sections of nanofiltration membrane groups 300 is connect with total water producing pipe 2, and described three sections dense
One end of water pipe 303 is connect with the concentrated water spout of three sections of nanofiltration membrane groups 300, and the other end is connect with total concentrated water pipe 3.Three Duan Xunhuan
One end of water pipe 304 is connect with three sections of concentrated water pipes 303, and the other end is connect with two sections of concentrated water pipes 203, and junction is located at three Duan Xun
301 front of ring pump, stoste is after three sections of circulations, and divalent salt content is high in concentrated water, especially sulfate ion, to prevent sulphur
Hydrochlorate leads to concentration polarization because flow velocity is too low and then in inner wall of the pipe fouling, increases by three sections of circulating pumps 301 and three sections of circulating water pipes
304, three sections of concentrated waters are recycled, while rate is recovered by filtration in raising, increases the flow of concentrated water, reduces deposition to the greatest extent, are prevented
Only block.
Embodiment 2: as shown in Figure 1, the underground coal mine water high-recovery point salt system further includes cleaning system, cleaning system
System includes cleaning water tank 401, produces water return pipe 402, cleaning concentrate recirculation general pipeline 403, personal water pipe 404, cleaning pump 405, protects
Pacify filter 406,407, one sections of total cleaning pipe, 408, two sections of cleaning inlet tube, 409, three sections of cleaning inlet tubes of cleaning inlet tube
410, one section of 411, two sections of cleaning concentrate recirculation pipe 412, three sections of cleaning concentrate recirculation pipe cleaning concentrate recirculation pipe 413, dosing mouth
414 and heater 415, cleaning system may be implemented to the segmented cleaning of different nanofiltration membrane groups.
Described 402 one end of production water return pipe is connect with total water producing pipe 2, and junction is located at three sections of water producing pipes 302 and total yield
The rear of 2 junction of water pipe, the other end for producing water return pipe 402 are connect with the top of cleaning water tank 401.
One end of three sections of cleanings concentrate recirculation pipe 413 and three sections of concentrated water pipes 303, and junction is located at three sections of concentrated water pipes
303 and three sections of 304 junctions of circulating water pipe lower section, three sections cleaning concentrate recirculation pipe 413 the other ends and cleaning concentrate recirculation
One end of general pipeline 403 connects, and the other end of the cleaning concentrate recirculation general pipeline 403 is connected with the top of cleaning water tank 401.It is described
One section of concentrated water pipe 103 is connect through one section of cleaning concentrate recirculation pipe 411 with cleaning concentrate recirculation general pipeline 403, and one section of concentrated water pipe 103
The junction for cleaning concentrate recirculation pipe 411 with one section is located at two sections of booster pumps, 201 front；Two sections of concentrated water pipes 203 are through two sections
Cleaning concentrate recirculation pipe 412 is connect with cleaning concentrate recirculation general pipeline 403, and two sections of concentrated water pipes 203 and two sections of cleaning concentrate recirculations
The junction of pipe 412 is located at the front of three sections of circulating water pipes 304 and two sections of 203 junctions of concentrated water pipe.
Described 407 one end of total cleaning pipe is connect with the water outlet of cleaning water tank 401, the other end and three sections of cleaning inlet tubes
410 one end connection, the other end of three sections of cleaning inlet tubes 410 is connect with two sections of concentrated water pipes 203, and three sections of cleaning inlet tubes
410 and the junctions of two sections of concentrated water pipes 203 be located at three sections of 301 rears of circulating pump, one end of one section of cleaning inlet tube 408 with
Total cleaning pipe 407 connects, and the other end is connect with stoste pipe 1, and one section of cleaning inlet tube 408 and the junction of stoste pipe 1 are located at
One section of 101 rear of high-pressure pump, it is described two sections cleaning inlet tube 409 one end connect with total cleaning pipe 407, the other end and one section it is dense
After water pipe 103 connects, and the junction of two sections of cleaning inlet tubes 409 and one section of concentrated water pipe 103 is located at two sections of booster pumps 201
Side.
It is additionally provided with dosing mouth 414 at the top of the cleaning water tank 401, increases cleaning medicine for the cleaning solution in cleaning water tank 401
Object cleans inside water tank 401 and is additionally provided with heater 415, heats cleaning solution, promotes drug dissolution, the personal water pipe 404 with it is clear
It is connected at the top of water tank 401, the cleaning pump 405 and cartridge filter 406 are sequentially set in total cleaning pipe 407, security personnel's filtering
The effect of device 406 is to prevent from damaging nanofiltration membrane group in cleaning solution for the impurity in the drug and personal water of dissolution.
Embodiment 3: as shown in Figure 1, the underground coal mine water high-recovery point salt system further includes first check-valve 4 and
Two check-valves 5, the first check-valve 4 are set on two sections of concentrated water pipes 203, and are located at three sections of circulating water pipes 304 and two sections of concentrated waters
The front of 203 junction of pipe, the second check-valve 5 are set on three sections of circulating water pipes 304, and check-valves can prevent liquid from returning
Stream.
Embodiment 4: as shown in Figure 1, the underground coal mine water high-recovery divides in salt system, cleaning system further includes cleaning
One end of circulating line 416, the clean cycle pipeline 416 is connect with the top of cleaning water tank 401, the other end and total cleaning pipe
407 connections, and the junction of clean cycle pipeline 416 and total cleaning pipe 407 be located at cleaning pump 405 and cartridge filter 406 it
Between, clean cycle pipeline 416 can promote the cleaning solution cleaned in water tank 401 mixing.
Embodiment 5: as shown in Figure 1, the underground coal mine water high-recovery be divided to salt system further include two pressure switches 6,
Six 7, one sections of control valve, 104, two sections of check-valves check-valves, 204, three sections of check-valves 305, total yield Water Check Valve 8 and total concentrated water are cut
Only valve 9, specifically, control valve 7 selects Hand-operated butterfly valve or Pneumatic butterfly valve, described two pressure switches 6 according to real work situation
It is respectively arranged on the stoste pipe 1 at one section of 101 both ends of high-pressure pump, one section of check-valves 104 is set to one section of 101 rear of high-pressure pump
On stoste pipe 1 after pressure switch 6, two control valves 7 are additionally provided on the stoste pipe 1, one of them is located at one section of high pressure
Before pumping 101 front pressure switches 6, another is located at one section of 104 rear of check-valves.
It is set on one section of concentrated water pipe 103 there are two control valve 7 and two sections of check-valves 204, two sections of check-valves 204 are set to two
201 rear of section booster pump, one of control valve 7 is set to two sections of booster pumps, 201 front, and is located at one section of concentrated water pipe 103 and one
The junction rear of Duan Qingxi concentrate recirculation pipe 411, another control valve 7 is set to two sections of 204 rears of check-valves, and is located at one section
The front of concentrated water pipe 103 and two sections of cleaning 409 junctions of inlet tube.
Three sections of check-valves 305 and a control are arranged in sequence on two sections of concentrated water pipes 203 at three sections of circulating pumps, 301 rear
Valve 7.
The total yield Water Check Valve 8 and a control valve 7 are sequentially set on total water producing pipe 2 at three sections of 302 rears of water producing pipe,
And total yield Water Check Valve 8 is located in front of production water return pipe 402 and total 2 junction of water producing pipe, total yield Water Check Valve 8 can prevent from producing
Water reflux, control valve 7 are located at the rear for producing water return pipe 402 and total 2 junction of water producing pipe, and total concentrated water shut-off valve 9 is set to total dense
On water pipe 3, total concentrated water shut-off valve 9 can be controlled by the flow for manually adjusting to concentrated water.
Embodiment 6: as shown in Figure 1, the underground coal mine water high-recovery point salt system further includes 12 control valves 7,
The production water return pipe 402, personal 404, one sections of 408, two sections of cleaning inlet tube, 409, three sections of inlet tube of cleanings of water pipe clean into
On liquid pipe 410, one sections of cleaning concentrate recirculation pipes, 411, two sections of cleaning concentrate recirculation pipes 412 and three sections of cleaning concentrate recirculation pipes 413
It is equipped with a control valve 7.
It is set in total cleaning pipe 407 there are three control valve 7, one of control valve 7 is located at cleaning water tank 401 and cleaning
Between pump 405, other two control valve 7 is located at 406 two sides of cartridge filter, and the control at 406 rear of cartridge filter
For valve 7 between cartridge filter 406 and clean cycle pipeline 416, the clean cycle pipeline 416 is equipped with a control valve
7。
Embodiment 7: as shown in Figure 1, the underground coal mine water high-recovery point salt system further includes pressure transmitter 10, stream
Transmitter 11 and conductivity sensor 12, a pressure transmitter 10 is arranged in sequence on the stoste pipe 1 and a flow becomes
Device 11 is sent, and is located between the control valve 7 and one section of cleaning inlet tube 408 at one section of 104 rear of check-valves.
Two pressure transmitters 10 and a flow transmitter 11 are arranged in sequence on one section of concentrated water pipe 103, wherein one
A pressure transmitter 10 is set between one section of cleaning concentrate recirculation pipe 411 and the control valve 7 in two sections of 201 fronts of booster pump, another
A pressure transmitter 10 and flow transmitter 11 are set to the control valve 7 and two sections of cleaning inlet tubes 409 at two sections of 204 rears of check-valves
Between.
Two pressure transmitters 10 and a flow transmitter 11 are arranged in sequence on two sections of concentrated water pipes 203, wherein one
A pressure transmitter 10 is set between two sections of cleaning concentrate recirculation pipes 412 and first check-valve 4, another 10 He of pressure transmitter
Flow transmitter 11 is set between the control valve 7 and three sections of cleaning inlet tubes 410 at three sections of 305 rears of check-valves.
A pressure transmitter 10 and a flow transmitter 11 are arranged in sequence on total concentrated water pipe 3, and is located at three sections
Between concentrated water pipe 303 and total concentrated water shut-off valve 9.
12, pressure transmitters 10 of a conductivity sensor and a flow are arranged in sequence on total water producing pipe 2
Transmitter 11, wherein conductivity sensor 12 and pressure transmitter 10 be set to three sections of water producing pipes 302 and produce water return pipe 402 it
Between, and it is located at 8 front of total yield Water Check Valve, flow transmitter 11 is located at the rear of the control valve 7 on total water producing pipe 2.
A flow transmitter is equipped on one section of water producing pipe, 102, two sections of water producing pipes 202 and three sections of water producing pipes 302.
Embodiment 8: as shown in Figure 1, the underground coal mine water high-recovery point salt system further includes pressure gauge 13, flowmeter
14, thermometer 15, pH table 16 and liquidometer 17, set that there are three pressure gauge 13, one of pressure gauges in total cleaning pipe 407
13 are set between cleaning pump 405 and clean cycle pipeline 416, other two pressure gauge 13 is respectively arranged on 406 liang of cartridge filter
Side, and between cartridge filter 406 and two sides control valve 7；The cleaning water tank 401 is equipped with thermometer 15 and liquidometer
17；The clean cycle pipeline 416 is equipped with pH table 16, for testing the pH value of cleaning solution；It is also set in total cleaning pipe 407
There is flowmeter 14, and is located at before the control valve 7 in 406 front of cartridge filter.
Embodiment 9: as shown in Figure 1, the underground coal mine water high-recovery point salt system further includes sampling valve 18, described one
It is equipped with sampling valve 18 on section 102, two sections of water producing pipes 202 of water producing pipe and three sections of water producing pipes 302, the production water of nanofiltration membrane group is carried out
Sampling checks the working condition of nanofiltration membrane group.
Embodiment 10: as shown in Figure 1, a kind of underground coal mine water high-recovery divides salt method, using underground coal mine above-mentioned
Water high-recovery divides salt system, carries out three sections of nanofiltrations to underground coal mine water and divides salt, includes the following steps:
S100: underground coal mine water enters underground coal mine water height above-mentioned along stoste pipe 1 after initial flocculation filters and recycles
Rate divides salt system, flows through after one section of high-pressure pump 101 boosts and reaches 16.19bar, meet the intake pressure requirement of nanofiltration membrane, enters
One section of nanofiltration membrane group 100 carries out one section of high pressure and divides salt, and the pressure of one section of concentrated water is 15.58bar；
The production water of S200: one section of nanofiltration membrane group 100 enters total water producing pipe 2 through one section of water producing pipe 102 and collects, and concentrated water is along one section
Concentrated water pipe 103 flows through two sections of booster pumps 201 and supplements pressure loss 7.01bar, and pressure reaches 22.59bar after pressurization, into two sections
Nanofiltration membrane group 200 carries out two sections of pressurizations and divides salt, and two sections of concentrated water outlet pressures are 21.96bar；
The production water of S300: two sections of nanofiltration membrane groups 200 enters total water producing pipe 2 through two sections of water producing pipes 202 and collects, and concentrated water is along two sections
Concentrated water pipe 203 flows through three sections of circulating pumps 301, and pressure reaches 34.56bar after boosting, into three sections of nanofiltration membrane groups 300, carries out three
Section divides salt；
The concentrated water that S400: three sections of nanofiltration membrane groups 300 generate flows back to three through three sections of concentrated water pipes 303 and three sections of circulating water pipes 304
Section circulating pump 301, is again introduced into three sections of nanofiltration membrane groups 300, carries out three sections of circulations and divide salt；
The production water of S500: three sections of nanofiltration membrane groups 300 enters total water producing pipe 2 through three sections of water producing pipes 302 and collects, three sections of nanofiltration membranes
The concentrated water of group 300 enters total concentrated water pipe 3 through three sections of concentrated water pipes 303 and collects, and salt is divided to complete.
Embodiment 11: the underground coal mine water high-recovery divides salt method, further includes segmented cleaning process, including following steps
It is rapid:
P100: the production water return pipe 402 cleans concentrate recirculation general pipeline 403 and personal water pipe 404 to cleaning water tank 401
It supplies water, wherein also cleaned concentrate recirculation general pipeline 403 is received the concentrated water of one section of nanofiltration membrane group 100 and two sections of nanofiltration membrane groups 100
Collection, by the dosing mouth 414 on cleaning water tank 401, into cleaning water tank 401, drug is cleaned in addition, is dissolved in cleaning water tank 401
In cleaning solution in；
P200: cleaned 405 pressurization of pump of cleaning solution in cleaning water tank 401 enters total cleaning pipe 407, to one section of nanofiltration membrane
100, two sections of nanofiltration membrane groups 200 of group and three sections of nanofiltration membrane groups 300 carry out segmented cleaning；
P300: one section of cleaning, 408, one sections of inlet tube cleaning concentrate recirculation pipes 411 are opened and produce the valve on water return pipe 402
Door, wash liquid stream complete the cleaning of one section of nanofiltration membrane group 100 through one section of nanofiltration membrane group 100；
P400: two sections of cleanings, 409, two sections of inlet tube cleaning concentrate recirculation pipes 412 are opened and produce the valve on water return pipe 402
Door, wash liquid stream complete the cleaning of two sections of nanofiltration membrane groups 200 through two sections of nanofiltration membrane groups 200；
P500: three sections of cleanings, 410, three sections of inlet tube cleaning concentrate recirculation pipes 303 are opened and produce the valve on water return pipe 402
Door, wash liquid stream complete the cleaning of three sections of nanofiltration membrane groups 300 through three sections of nanofiltration membrane groups 300.
The working principle of the invention: as shown in Fig. 2, the present invention use three sections of nanofiltration modes, by one section of high-pressure pump 101,
Two sections of booster pumps 201 and three sections of circulating pumps 301 realize high efficiente callback and the separation of inorganic salts.Pressure in stoste pipe 1 is not achieved
The intake pressure requirement of nanofiltration membrane, needs to obtain an initial high pressure by one section of high-pressure pump 101；Pass through a Duan Na in stoste
After filter membrane group 100, producing water and directly collected in total water producing pipe 2, concentrated water pressure is declined, to meet subsequent filtering requirement,
It needs to be pressurized one section of concentrated water using two sections of booster pumps 201；When two sections of concentrated waters enter three sections of nanofiltration membrane groups 300, divalent
The content of salt is very high, and especially sulfate is easy the fouling in pipeline, blocks pipeline, it is difficult to dredge, increase in this case
Add three sections of circulating water pipes 304, can be improved flow velocity of three sections of concentrated waters in pipeline, increase flow, it is stifled that fouling can be avoided the occurrence of
The case where plug.
In three sections of cyclic processes, three sections of nanofiltration membrane groups 300 have two input channels, are two sections of 203 Hes of concentrated water pipe respectively
Three sections of circulating water pipes 304, since the pressure of two pipelines may be different, the pipeline that the high pipeline of pressure can be low to pressure generates shadow
It rings, flows backwards liquid in low pressure pipeline, can not work normally, so this system increases first check-valve 4 and second check-valve
5, two pipelines are protected, liquid reflux is prevented.
The present apparatus further includes complete detailed cleaning system, can be realized the segmented cleaning of different nanofiltration membrane groups, Neng Gouti
The quality of height cleaning, is conducive to this system long-term stable operation.
Claims (10)
1. a kind of underground coal mine water high-recovery divides salt system, it is characterised in that: including stoste pipe (1), total water producing pipe (2), total
Concentrated water pipe (3), one section of nanofiltration membrane group (100), one section of high-pressure pump (101), one section of water producing pipe (102), one section of concentrated water pipe (103),
Two sections of nanofiltration membrane groups (200), two sections of booster pumps (201), two sections of water producing pipes (202), two sections of concentrated water pipes (203), three sections of nanofiltration membranes
Group (300), three sections of circulating pumps (301), three sections of water producing pipes (302), three sections of concentrated water pipes (303) and three sections of circulating water pipes (304)；
The stoste pipe (1) connect with the water inlet of one section of nanofiltration membrane group (100), and one section of high-pressure pump (101) is set to stoste
It manages on (1), one section of the production mouth of a river water producing pipe (102) of one section of nanofiltration membrane group (100) connect with total water producing pipe (2), one section of nanofiltration
The concentrated water spout of film group (100) is connect through one section of concentrated water pipe (103) with the water inlet of two sections of nanofiltration membrane groups (200), two sections of booster pumps
(201) it is set on one section of concentrated water pipe (103)；
Two sections of the production mouth of a river water producing pipe (202) of two sections of nanofiltration membrane groups (200) connect with total water producing pipe (2), two sections of nanofiltrations
The concentrated water spout of film group (200) is connect through two sections of concentrated water pipes (203) with the water inlet of three sections of nanofiltration membrane groups (300), three sections of circulating pumps
(301) it is set on two sections of concentrated water pipes (203)；
Three sections of the production mouth of a river water producing pipe (302) of three sections of nanofiltration membrane groups (300) connect with total water producing pipe (2), and described three sections
One end of concentrated water pipe (303) is connect with the concentrated water spout of three sections of nanofiltration membrane groups (300), and the other end is connect with total concentrated water pipe (3)；It is described
One end of three sections of circulating water pipes (304) is connect with three sections of concentrated water pipes (303), and the other end is connect with two sections of concentrated water pipes (203), and even
Place is met to be located in front of three sections of circulating pumps (301).
2. underground coal mine water high-recovery according to claim 1 divides salt system, it is characterised in that: further include cleaning system
System, cleaning system include cleaning water tank (401), produce water return pipe (402), cleaning concentrate recirculation general pipeline (403), personal water pipe
(404), cleaning pump (405), cartridge filter (406), total cleaning pipe (407), one section of cleaning inlet tube (408), two sections of cleanings
Inlet tube (409), three sections of cleaning inlet tubes (410), one section of cleaning concentrate recirculation pipe (411), two sections of cleaning concentrate recirculation pipes
(412), three sections of cleaning concentrate recirculation pipes (413), dosing mouth (414) and heater (415)；
The production water return pipe (402) one end is connect with total water producing pipe (2), and junction is positioned at three sections of water producing pipes (302) and always
The rear of water producing pipe (2) junction, the other end for producing water return pipe (402) are connect with the top of cleaning water tank (401)；
One end of three sections of cleanings concentrate recirculation pipe (413) and three sections of concentrated water pipes (303), and junction is located at three sections of concentrated water pipes
(303) and the lower section of three sections of circulating water pipe (304) junctions, the other end of three sections of cleanings concentrate recirculation pipe (413) and cleaning are dense
One end of water return header (403) connects, the other end and cleaning water tank (401) of cleaning concentrate recirculation general pipeline (403)
Top connection；One section of concentrated water pipe (103) is through one section of cleaning concentrate recirculation pipe (411) and cleaning concentrate recirculation general pipeline (403)
Connection, and one section of concentrated water pipe (103) cleans the junction of concentrate recirculation pipe (411) before two sections of booster pumps (201) with one section
Side；Two sections of concentrated water pipes (203) connect through two sections of cleaning concentrate recirculation pipes (412) with cleaning concentrate recirculation general pipeline (403), and
The junction that two sections of concentrated water pipes (203) clean concentrate recirculation pipe (412) with two sections is located at three sections of circulating water pipes (304) and two sections dense
The front of water pipe (203) junction；
Described total cleaning pipe (407) one end is connect with the water outlet of cleaning water tank (401), the other end and three sections of cleaning inlet tubes
(410) one end connection, three sections cleaning inlet tube (410) the other ends connect with two sections of concentrated water pipes (203), and three sections clean into
The junction of liquid pipe (410) and two sections of concentrated water pipes (203) is located at three sections of circulating pump (301) rears, one section of cleaning inlet tube
(408) one end is connect with total cleaning pipe (407), and the other end is connect with stoste pipe (1), and one section of cleaning inlet tube (408) with
The junction of stoste pipe (1) is located at one section of high-pressure pump (101) rear, one end of two sections of cleanings inlet tube (409) and total clear
Pipe (407) connection is washed, the other end is connect with one section of concentrated water pipe (103), and two sections of cleaning inlet tubes (409) and one section of concentrated water pipe
(103) junction is located at the rear of two sections of booster pumps (201)；
It is additionally provided with dosing mouth (414) at the top of the cleaning water tank (401), is additionally provided with heater inside cleaning water tank (401)
(415), it is connect at the top of the personal water pipe (404) and cleaning water tank (401), the cleaning pump (405) and cartridge filter
(406) it is sequentially set on total cleaning pipe (407).
3. underground coal mine water high-recovery according to claim 2 divides salt system, it is characterised in that: further include the first non-return
Valve (4) and second check-valve (5), the first check-valve (4) are set on two sections of concentrated water pipes (203), and are located at three sections of recirculated waters
The front of (304) and two sections of concentrated water pipe (203) junctions is managed, the second check-valve (5) is set to three sections of circulating water pipes (304)
On.
4. underground coal mine water high-recovery according to claim 2 divides salt system, it is characterised in that: cleaning system further includes
One end of clean cycle pipeline (416), the clean cycle pipeline (416) is connect with the top of cleaning water tank (401), the other end
It is connect with total cleaning pipe (407), and the junction of clean cycle pipeline (416) and total cleaning pipe (407) is located at cleaning pump (405)
Between cartridge filter (406).
5. underground coal mine water high-recovery according to claim 3 divides salt system, it is characterised in that: further include two pressure
Switch (6), six control valves (7), one section of check-valves (104), two sections of check-valves (204), three sections of check-valves (305), total yield water
Check-valves (8) and total concentrated water shut-off valve (9), described two pressure switches (6) are respectively arranged on the original at one section of high-pressure pump (101) both ends
In liquid pipe (1), one section of check-valves (104) is set to the stoste pipe after the pressure switch (6) at one section of high-pressure pump (101) rear
(1) on, two control valves (7) are additionally provided on the stoste pipe (1), one of them is located at pressure in front of one section of high-pressure pump (101)
Before switching (6), another is located at one section of check-valves (104) rear；
It is set on one section of concentrated water pipe (103) there are two control valve (7) and two sections of check-valves (204), two sections of check-valves (204) set
In two sections of booster pump (201) rears, one of control valve (7) is set in front of two sections of booster pumps (201), and is located at one section of concentrated water
The junction rear of (103) and one section of cleaning concentrate recirculation pipe (411) is managed, another control valve (7) is set to two sections of check-valves
(204) rear, and it is located at the front of one section of concentrated water pipe (103) and two sections of cleaning inlet tube (409) junctions；
Three sections of check-valves (305) and a control are arranged in sequence on two sections of concentrated water pipes (203) at three sections of circulating pumps (301) rear
Valve (7) processed；
The total yield Water Check Valve (8) and a control valve (7) are sequentially set to total water producing pipe at three sections of water producing pipe (302) rears
(2) on, and total yield Water Check Valve (8) is located in front of production water return pipe (402) and total water producing pipe (2) junction, control valve (7) position
In the rear for producing water return pipe (402) and total water producing pipe (2) junction, total concentrated water shut-off valve (9) is set on total concentrated water pipe (3).
6. underground coal mine water high-recovery according to claim 4 divides salt system, it is characterised in that: further include 12 controls
Valve (7) processed, the production water return pipe (402), personal water pipe (404), one section of cleaning inlet tube (408), two sections of cleaning inlet tubes
(409), three sections of cleaning inlet tubes (410), one section of cleaning concentrate recirculation pipe (411), two sections of cleaning concentrate recirculation pipes (412) and three
A control valve (7) is equipped on Duan Qingxi concentrate recirculation pipe (413)；
Set on total cleaning pipe (407) there are three control valve (7), one of control valve (7) be located at cleaning water tank (401) and
Between cleaning pump (405), other two control valve (7) is located at cartridge filter (406) two sides, and cartridge filter
(406) control valve (7) at rear is located between cartridge filter (406) and clean cycle pipeline (416)；The clean cycle pipe
Road (416) is equipped with a control valve (7).
7. underground coal mine water high-recovery according to claim 5 divides salt system, it is characterised in that: further include pressure inverting
A pressure transmitter is arranged in sequence on the stoste pipe (1) in device (10), flow transmitter (11) and conductivity sensor (12)
(10) and a flow transmitter (11), and it is located at the control valve (7) and one section of cleaning inlet tube at one section of check-valves (104) rear
(408) between；
Two pressure transmitters (10) and a flow transmitter (11) are arranged in sequence on one section of concentrated water pipe (103), wherein
One pressure transmitter (10) is set to the control valve (7) in front of one section of cleaning concentrate recirculation pipe (411) and two sections of booster pumps (201)
Between, another pressure transmitter (10) and flow transmitter (11) be set to two sections of check-valves (204) rears control valve (7) and
Between two sections of cleaning inlet tubes (409)；
Two pressure transmitters (10) and a flow transmitter (11) are arranged in sequence on two sections of concentrated water pipes (203), wherein
One pressure transmitter (10) is set between two sections of cleaning concentrate recirculation pipes (412) and first check-valve (4), another pressure becomes
Device (10) and flow transmitter (11) is sent to be set to the control valve (7) and three sections of cleaning inlet tubes at three sections of check-valves (305) rears
(410) between；
A pressure transmitter (10) and a flow transmitter (11) are arranged in sequence on total concentrated water pipe (3), and is located at three
Between section concentrated water pipe (303) and total concentrated water shut-off valve (9)；
A conductivity sensor (12), a pressure transmitter (10) and a stream are arranged in sequence on total water producing pipe (2)
Transmitter (11), wherein conductivity sensor (12) and pressure transmitter (10) are set to three sections of water producing pipes (302) and produce water and return
Between flow tube (402), and it is located in front of total yield Water Check Valve (8), flow transmitter (11) is located at the control on total water producing pipe (2)
The rear of valve (7)；
A flow pick-up is equipped on one section of water producing pipe (102), two sections of water producing pipes (202) and three sections of water producing pipes (302)
Device (11).
8. underground coal mine water high-recovery according to claim 6 divides salt system, it is characterised in that: further include pressure gauge
(13), flowmeter (14), thermometer (15), pH table (16) and liquidometer (17), set that there are three pressures on total cleaning pipe (407)
Power table (13), one of pressure gauge (13) are set between cleaning pump (405) and clean cycle pipeline (416), other two pressure
Power table (13) is respectively arranged on cartridge filter (406) two sides, and between cartridge filter (406) and two sides control valve (7)；
The cleaning water tank (401) is equipped with thermometer (15) and liquidometer (17)；The clean cycle pipeline (416) is equipped with pH table
(16)；It is additionally provided with flowmeter (14) on total cleaning pipe (407), and is located at the control valve (7) in front of cartridge filter (406)
Before.
9. underground coal mine water high-recovery according to claim 7 divides salt system, it is characterised in that: further include sampling valve
(18), sampling valve (18) are equipped on one section of water producing pipe (102), two sections of water producing pipes (202) and three sections of water producing pipes (302).
10. a kind of underground coal mine water high-recovery divides salt method, returned using any underground coal mine water height of claim 1-9
Yield divides salt system, it is characterised in that: carries out three sections of nanofiltrations to underground coal mine water and divides salt, includes the following steps:
S100: underground coal mine water enters underground coal mine water high-recovery above-mentioned along stoste pipe (1) after initial flocculation filters
Divide salt system, reaches 16bar or more after flowing through one section of high-pressure pump (101) boosting, meet the intake pressure requirement of nanofiltration membrane, enter
One section of nanofiltration membrane group (100) carries out one section of high pressure and divides salt；
The production water of S200: one section of nanofiltration membrane group (100) enters total water producing pipe (2) through one section of water producing pipe (102) and collects, one section of nanofiltration
The concentrated water of film group (100) flows through two sections of booster pump (201) supplement pressure losses along one section of concentrated water pipe (103), and two are entered after pressurization
Section nanofiltration membrane group (200), carries out two sections of pressurizations and divides salt；
The production water of S300: two sections of nanofiltration membrane groups (200) enters total water producing pipe (2) through two sections of water producing pipes (202) and collects, two sections of nanofiltrations
The concentrated water of film group (200) flows through three sections of circulating pumps (301) along two sections of concentrated water pipes (203), into three sections of nanofiltration membrane groups (300), into
Three sections of points of salt of row；
The concentrated water of S400: three sections of nanofiltration membrane groups (300) flows back to three sections through three sections of concentrated water pipes (303) and three sections of circulating water pipes (304)
Circulating pump (301) is again introduced into three sections of nanofiltration membrane groups (300), carries out three sections of circulations and divides salt；
The production water of S500: three sections of nanofiltration membrane groups (300) enters total water producing pipe (2) through three sections of water producing pipes (302) and collects, three sections of nanofiltrations
The concentrated water of film group (300) enters total concentrated water pipe (3) through three sections of concentrated water pipes (303) and collects, and salt is divided to complete.
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| CN201144172Y (en) * | 2007-12-27 | 2008-11-05 | 张艳 | Device for removing sulfate radical from brine by nanofiltration membrane |
| WO2012155607A1 (en) * | 2011-05-19 | 2012-11-22 | 波鹰(厦门)科技有限公司 | Apparatus for producing reclaimed water based on electrolysis and double membrane technologies and method thereof |
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| CN206654795U (en) * | 2016-12-11 | 2017-11-21 | 清水源（上海）环保科技有限公司 | A kind of process treatment device of nanofiltration equipment |
| CN210795861U (en) * | 2019-04-29 | 2020-06-19 | 华电水务工程有限公司 | High-recovery-rate salt separation system for underground water of coal mine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201144172Y (en) * | 2007-12-27 | 2008-11-05 | 张艳 | Device for removing sulfate radical from brine by nanofiltration membrane |
| WO2012155607A1 (en) * | 2011-05-19 | 2012-11-22 | 波鹰(厦门)科技有限公司 | Apparatus for producing reclaimed water based on electrolysis and double membrane technologies and method thereof |
| CN202893199U (en) * | 2012-03-29 | 2013-04-24 | 北京能泰高科环保技术股份有限公司 | Nanofiltration membrane device having effects of improving water resource recovery rate and reducing energy consumption |
| CN206654795U (en) * | 2016-12-11 | 2017-11-21 | 清水源（上海）环保科技有限公司 | A kind of process treatment device of nanofiltration equipment |
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