CN101712516A - Device and method for deeply treating mine water for underground coal mine - Google Patents
Device and method for deeply treating mine water for underground coal mine Download PDFInfo
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Abstract
The invention relates to a water treatment device, in particular to a device and a method for deeply treating mine water for an underground coal mine. The device comprises a pressure conditioning unit, a primary filtering unit, a hardness removing unit, a secondary filtering unit and a nanofiltration unit. When mine water is treated by using the device, the mine water is firstly decompressed through the pressure conditioning unit, is secondly filtered through the primary filtering unit, is thirdly subjected to calcium and magnesium ion removal through the hardness removing unit, is fourthly filtered secondarily through the secondary filtering unit, and is finally filtered through the nanofiltration unit to obtain reusable clean water. The device organically combines the units, stably decompresses and conditions inflow pressure of pipelines from 2.5-3.5MPa to 0.6-0.7MPa serving as power and the water source of mine water deep treatment so as to ensure that the whole system does not require electric power or other power, and solves the problem that large safety control equipment is required when the current common deeply treating equipment on the ground is applied to underground.
Description
Technical field
The invention belongs to environmental engineering reuse of wastewater technical field, relate to a kind of water treatment device, particularly a kind of mine water for underground coal mine advanced treatment apparatus and method.
Background technology
Rich coal resources in China all accounts for more than 2/3 in China primary energy source production and consumption constitutes for a long time, in quite long period in future, can not change based on the power supply general layout of coal.The coal in China mining area mainly is distributed in water-deficient areas such as East China, North China, northeast, northwest, being back to use productive life after pit water is handled has become one of main path that solves the mine water resource shortage, also is the specific requirement of national energy-saving and emission-reduction policy and " pit water utilizes ad hoc planning ".China's coal-mine down-hole water mainly comprises depositing dust spraying, apparatus cools and preparation emulsion etc.Wherein depositing dust spraying water consumption is bigger, but lower to water quality requirement, and generally the pit water through purifying treatment can satisfy; And water consumptions such as apparatus cools, preparation emulsion only account for a very little part, but it is higher to water quality requirement, need carry out desalting treatment, just can reach the relevant requirements in " Code for design of industrial recirculating cooling water " and " coal mining enterprise's mine support standard---hydraulic support (post) oil in water emulsion, enriched material and high aqueous fluid hydraulic fluid MT76-2002 thereof ".Mainly contain two kinds of processing and utilizing approach for this pit water at present, the one, carry out purifying treatment on ground in the face of pit water, be used for downhole production after removing suspended substance, tend to cause and combine equipment scaling, burn into line clogging such as adopting, to combine pick, lower equipment dependability, shorten maintenance cycle, cause safety and loss economically; Another kind method is to carry out advanced treatment on ground in the face of pit water, and the salt of removing suspended substance and exceeding standard is used for downhole production then, and this need set up larger mine water deeply processing plant on ground, and lays dedicated pipeline in the down-hole, invests huge.And owing to only have small part down-hole water higher to water quality requirement, other waters only need purifying treatment to get final product, so there is sizable waste in this treatment process, practical application is less.
Above-mentioned contradiction has restricted the application of pit water in the colliery downhole production, in actual production process, Yi Bian efflux pit water often in a large number, Yi Bian a large amount of exploiting groundwater forms huge waste and destruction to resource and environment.The Chinese invention patent of application number 200610114466 discloses a kind of mine water down-hole treatment system, this system layout is in the down-hole, comprise settling system, filtering system, scale inhibition system, waterworks, described pit water is at first through the settling system precipitation, system filtration after filtration again, after behind the scale inhibition system scale inhibition, obtain can reuse clear water.Described settling system comprises settling tank, and settling tank comprises advection district and swash plate district, and pit water is crossed advection district and swash plate district successively and precipitated.Described filtering system comprises prime filter, fine filter, and fine filter is the double filtering fine filter, and its inside is provided with shell filtrate and two kinds of filtrates of ceramic grain filter.The scale inhibition instrument of scale inhibition system is the antiscaling device of electron type or permanent-magnet type.Also comprise back-purge system, be used for filtering system is cleaned.But the mine water down-hole treatment system of this invention still needs electric power or other power to control owing to contain the device of power consumption, and therefore the entire treatment system is higher to the security requirement of operation when underground work, has certain potential safety hazard.In addition, this invention is primarily aimed at the higher pit water of metal ion content such as ferrimanganic and handles, and is still undesirable for the pit water treatment effect that saltiness is higher, and this invention complicated integral structure, the maintenance of whole system and more time-consuming the taking a lot of work of maintenance.
Summary of the invention
Above-mentioned deficiency at prior art, the invention provides a kind of mine water for underground coal mine advanced treatment apparatus that need not electric power and other power, can satisfy the downhole safety requirement, this device utilizes the hydraulic pressure in the existing pipe network under the coal mine, the clean pit water of pit water or down-hole through common purifying treatment is carried out advanced treatment, remove wherein excessive solvability salt, be used for the minority mechanical means higher, thereby alleviate the contradiction that exists in the water utilizing process of down-hole water quality requirement.
The above-mentioned technical problem that the present invention also deposits at prior art provides a kind of mine water for underground coal mine deep treatment method.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals:
A kind of mine water for underground coal mine advanced treatment apparatus is characterized in that: this device is arranged in the down-hole, comprising:
Be used to reduce and stable pipeline to come the pressure of water pressure be regulon;
Be used for removing the one-level filtering unit of pit water impurity;
Be used for removing the hard unit that removes of water calcium, magnesium ion;
Be used for removing the cascade filtration unit of water residual impurity; With
Further remove yin, yang ionic nano-filtration unit in the water;
Described pressure regulating unit, one-level filtering unit, remove hard unit, cascade filtration unit, nano-filtration unit and link to each other successively by pipeline with control unit.
Described pit water at first passes through the pressure regulating unit step-down, filters through the one-level filtering unit again, enters then to remove hard unit and remove calcium ions and magnesium ions, enters cascade filtration unit secondary filtration again, at last through nano-filtration unit obtain can reuse clear water.Device of the present invention combines above-mentioned each unit, comes water pressure from the power that 2.5～3.5Mpa decompression stable regulation to 0.6～0.7Mpa handles as mine water deeply in pipeline, makes total system need not electric power and other power.
As preferably, also comprise the control unit that is used for control pressure regulon and one-level filtering unit, control unit is based on hydraulic control system, connect to form successively by controlled filter device, control shut-off valve and two-position three way control valve, the two-position three way control valve by pipeline be arranged on the automatically controlled valve of pressure regulating unit and be connected with the one-level filtering unit.Device of the present invention can increase hydraulic control unit as required, functions such as the automatic start-stop of realization equipment, Long-distance Control, thus improve the automatic controllability of water treatment.Control unit is mainly used in equipment back flushinges such as Long-distance Control strainer and system's start-stop etc.
As preferably, described pressure regulating unit comprises strainer, reducing valve and flow control valve, and the feed-water intake of being located at the pressure regulating unit front end passes through pipe connection with strainer, reducing valve, flow control valve successively.Pressure regulating unit is mainly used in and comes water pressure from 2.5～3.5Mpa decompression stable regulation to 0.6～0.7Mpa in pipeline, and is not limited only to above-mentioned scope.
As preferably, described one-level filtering unit comprises grade one filter and back flushing control valve, and described grade one filter is the lamination strainer.Grade one filter can adopt 50 μ m lamination strainers, also can be various self-cleaning filters or various medium filter, be mainly used in iron rust, the grains of sand, coal dust and the emplastic etc. removed in the pit water, can be manually when impurity trapped reaches some amount or automatic backwash, impurity is discharged.
As preferably, describedly remove hard unit and comprise automatic softening agent, described cascade filtration unit comprises the secondary filter that is provided with sewage draining exit, and secondary filter is with softening agent is by pipe connection automatically, and described secondary filter is deep bed filter or candle filter.Automatically softening agent can be selected C117 type resin for use, is used for removing the Ca of water
2+, Mg
2+Deng, preventing it at the nanofiltration membrane surface scale, after resin is saturated, can draw salt solution automatically to regenerate, to recover to remove hard ability.Secondary filter is generally selected 10 μ m deep bed filter or common candle filter for use, is mainly used in to remove turbidity residual in the water etc., when impurity trapped is too much, needs to change filter bag or filter core to recover filtration capacity.
As preferably, described nano-filtration unit comprises nanofiltration device and pressure controlled valve, and described nanofiltration device is made of nanofiltration membrane and pressurized vessel.Nano-filtration unit is the key part of described mine water for underground coal mine advanced treatment apparatus, is used for removing the various zwitterions of water, makes water outlet reach the aforesaid standards requirement.
As preferably, described mine water deeply treatment unit is installed in the steel casing, and bottom half is provided with skid and towing pad.All components of the present invention can be installed in the steel casing, and bottom half is provided with skid and towing pad, can move, install location etc. in the tunnel that the down-hole is not open to traffic by cooperating with outside windlass.This structure is adapted to Working environment under the coal mine, is convenient to move, pull, and installation and maintenance simultaneously are simple, are adapted to the present state of the art of China's coal-mine.Device after the assembling only need be installed into rising pipe, liquid level control tube and blow-off line when using, and can start working; Running maintenance only needs regularly to add no iodine edible salt (main chemical compositions is a sodium-chlor).
A kind of mine water for underground coal mine deep treatment method, it is characterized in that: pit water at first enters described pressure regulating unit through pipeline makes pipeline come water pressure from 2.5～3.5Mpa decompression stable regulation to 0.6～0.7Mpa, filter the impurity of removing in the pit water through the one-level filtering unit then, again through removing the calcium ions and magnesium ions in the hard unit removal pit water, then enter cascade filtration unit cascade filtration and remove residual turbidity in the water, the zwitterion that enters at last in the nano-filtration unit removal water makes water outlet up to standard.
As preferably, described pressure regulating unit and one-level filtering unit carry out Long-distance Control by control unit, can improve the working efficiency of water treatment, realize the functions such as automatic start-stop, Long-distance Control of equipment, thereby improve the automatic controllability of water treatment.
Pit water or clean pit water that mine water for underground coal mine advanced treatment apparatus of the present invention accesses from the water supply line of down-hole through common purifying treatment carry out advanced treatment, remove salt wherein, make it reach relevant requirements in " Code for design of industrial recirculating cooling water " and " coal mining enterprise's mine support standard---hydraulic support (post) with oil in water emulsion, enriched material and high aqueous fluid hydraulic fluid MT76-2002 thereof ".The complete property of device of the present invention is good, safe, can be configured in concentrated water places such as colliery mining face under mine, do not need to lay dedicated line, simultaneously can also make full use of existing pipeline, pit water treatment facility etc., be that coal mining enterprise is realized providing powerful support for of energy-saving and emission-reduction.Simultaneously, this device has non-electric characteristics, has solved the puzzlement that needs huge safety control equipment when the advanced treatment equipment that generally adopts on the present ground is applied to the down-hole.
Description of drawings
Fig. 1 is a schema of the present invention.
Fig. 2 is the structural representation of the embodiment of the invention 1.
Fig. 3 is the structural representation of the embodiment of the invention 2.
Description of reference numerals: 1 stopping valve, 2 strainers, 3 reducing valve, 4 safety valve, 5 flow control valves, 6 pressure-controlling sources, 7 automatic level control valves, 11 ball valves, 12 back flushing control valves, 13 grade one filters, 14 automatic backwash control valves, 15 secondary filter systems, 21 automatic softening agents, 31 secondary filters, 41 nanofiltration device, 42 pressure controlled valves, 51 controlled filter devices, 52 control shut-off valves, 53 two-position three way control valves, 1-1 pressure regulating unit, 2-2 one-level filtering unit, 3-3 removes hard unit, 4-4 cascade filtration unit, 5-5 nano-filtration unit, 6-6 control unit.
Embodiment
By drawings and Examples, technical scheme of the present invention is described in further detail.
Embodiment 1
As shown in Figure 2, a kind of mine water for underground coal mine advanced treatment apparatus, this device is arranged in the down-hole, comprises linking to each other successively by pipeline: pressure regulating unit 1-1, one-level filtering unit 2-2, remove hard unit 3-3, cascade filtration unit 4-4 and nano-filtration unit 5-5.Satisfy the mine water deeply of intake pressure 0.7～2.0Mpa and handle, processing power is 1～2t/h.
Pressure regulating unit 1-1 mainly comprises strainer 2 and reducing valve 3.The feed-water intake of being located at pressure regulating unit 1-1 front end passes through pipe connection with strainer 2, reducing valve 3, flow control valve 5 successively, be provided with stopping valve 1 between strainer 2 and the feed-water intake, be provided with safety valve 4 between reducing valve 3 and the flow control valve 5, safety relief when safety valve 4 is used for guaranteeing aforementioned reducing valve fault prevents that follow-up equipment from damaging.Feed-water intake is connected by flange with the pit water pipeline.Strainer adopts standard Y type 70 order line strainers.
One-level filtering unit 2-2 comprises grade one filter 13 and back flushing control valve 12.Grade one filter 13 adopts the lamination strainer of 12 cun 50 μ m.Back flushing control valve 12 is located in the import and export pipeline of grade one filter 13, and back flushing control valve 12 and pressure regulating unit 1-1, the connecting tube that removes hard unit 3-3 are provided with ball valve 11.Back flushing control valve 12 is selected manual 3-way valve for use, also can adopt the hydraulic pressure 3-way valve.Pit water enters grade one filter 13 by grade one filter 13 preceding back flushing control valves, by back flushing control valve outflow thereafter.The back flushing control valve of pit water after by grade one filter 13 enters in the grade one filter 13, and counterflush is discharged by the back flushing control valves before the grade one filter 13, realizes the switching of operation and backwash.Ball valve 11 is mainly used in and blocks current when strainer is opened and inspect.
Remove hard unit 3-3 and mainly comprise automatic softening agent 21.Automatically the import of softening agent 21 is passed through pipe connection with the ball valve 11 that is in one-level filtering unit 2-2 end, and the outlet and the cascade filtration unit 4-4 of softening agent 21 pass through pipe connection automatically.Automatically softening agent 21 mainly comprises main and auxiliary softening jar, with the two automatic control head that couples together and salt case.Main and auxiliary softening jar is adopted the manufacturing of 316L stainless steel, and interior dress soften resin adopts C117 type resin in the present embodiment, also can be other trade mark resins.Inlet tube and outlet tube is connected to the intake-outlet of automatic control head respectively, and control head is realized the softening and resin regeneration of pit water by the switching of mechanism control internal valves automatically.
Cascade filtration unit 4-4 mainly comprises the secondary filter 31 that is provided with sewage draining exit, and secondary filter 31 passes through pipe connection with automatic softening agent 21, and is provided with valve on this section connecting tube.Secondary filter 31 adopts the deep bed filter of 10 μ m precision, also can adopt the same size candle filter, is mainly used in finely ground particles, organism and the resin chip etc. that filter through in the pit water of softening back.
Nano-filtration unit 5-5 mainly comprises nanofiltration device 41 and pressure controlled valve 42.Nanofiltration device 41 mainly is made up of pressurized vessel and built-in nanofiltration membrane, the import of nanofiltration device 41 is by check valve and cascade filtration unit 4-4 outlet passing through pipe connection, pressure controlled valve 42 is located at the concentrated water discharge mouth place of nanofiltration device 41, with control concentrated water discharge pressure, and then the rate of recovery and the ratio of desalinization of control water.Among this embodiment, nanofiltration membrane adopts the U.S. HL of GE company series membranes original paper, and the rate of recovery reaches more than 60%, and ratio of desalinization is more than 85%.
When this device uses, the pit water of clean pit water or process purifying treatment is after pipeline enters equipment of the present invention, earlier through pressure regulating unit, make hydraulic pressure from 0.7～2.0Mpa decompression, stable regulation to 0.6～0.7Mpa, enter the lamination strainer through the back flushing control valve, remove particulate matter such as iron rust, sand grains and cinder in the water.After filtering for some time, when pressure reduction reached 0.1Mpa before and after the impurity blocking filter made, the back flushing control valve that manually reverses made current oppositely enter the lamination strainer and realizes back flushing.Pit water after the filtration enters automatic softening agent, under the control of automatic control head, enters softening jar, falls wherein Ca by resins exchange
2+, Mg
2+Etc. the positively charged ion of easy fouling, enter secondary filter afterwards.Secondary filter is mainly used in fine particle and the resin etc. of interception in the water, pit water enters nanofiltration device afterwards, go out the few product water of solvability salt content by nanofiltration membrane separation, all the other most solvability salts become concentrated water drainage in the nanofiltration membrane outside and go out system.
Through engineering practice, the main effluent index of embodiment 1 described device satisfies standard-required fully, can be used for the water treatment of giving of down-hole mechanical equipment.Table 1 is in the engineering practice process of former water for the pit water with certain colliery, the north, the contrasting data that main water-in and water-out water-quality guideline and national standard require.
Table 1
| Test item | Outward appearance | The pH value | Calcium ions and magnesium ions (in lime carbonate) (mg/L) | Sulfate radical (mg/L) | Chlorion (mg/L) |
| Standard-required | Colourless, free from extraneous odour, no suspended substance and mechanical impurity | ??6.5-8.5 | ?≤100 | ??≤200 | ??≤200 |
| Influent quality 1 | Duskiness has iron rust, the coal grain | ??8.5 | ?410 | ??550 | ??185 |
| Effluent quality 1 | Meet the requirements | ??7.3 | ?56 | ??79 | ??85 |
| Influent quality 2 | Duskiness has iron rust, the coal grain | ??8.1 | ?475 | ??536 | ??157 |
| Effluent quality 2 | Meet the requirements | ??7.4 | ?45 | ??77 | ??70 |
| Influent quality 3 | Duskiness has iron rust, the coal grain | ??8.2 | ?375 | ??566 | ??235 |
| Effluent quality 3 | Meet the requirements | ??7.2 | ?38 | ??68 | ??81 |
| Influent quality 4 | Duskiness has iron rust, the coal grain | ??8.1 | ??440 | ??637 | ??223 |
| Effluent quality 4 | Meet the requirements | ??7.0 | ??47 | ??66 | ??79 |
Embodiment 2
A kind of mine water for underground coal mine advanced treatment apparatus, concrete scheme is with embodiment 1, and difference is: as shown in Figure 1, increased the control unit 6-6 based on hydraulic control system on the basis of embodiment 1 described device, improved pressure regulating unit; Increase one-level filtering unit quantity, changed the back flushing form; Change nano-filtration unit model and quantity.The hydraulic control system that increases has realized functions such as the automatic start-stop, Long-distance Control of equipment, can satisfy the mine water deeply of intake pressure 2.0～3.5Mpa to handle, and processing power is 5t/h, and the rate of recovery is more than 70%.As shown in Figure 3, specifically improve as follows:
Pressure regulating unit 1-1 changes second depressurized into by the decompression of original one-level, makes that system is manageable to come water pressure higher; On the pipeline after flow control valve 5, increased interface and automatic level control valve 7 that the pressure-controlling source 6 of pressure source is provided for hydraulic control system successively, thus realized system open, stop function automatically.
It is the quantity of lamination strainer that one-level filtering unit 2-2 has increased grade one filter 13, change three strainer parallel runnings into by original single-filter, set gradually ball valve 11, automatic backwash control valve 14 (being back flushing control valve 12 among the embodiment 1), grade one filter 13 and ball valve 11 on each parallel pipeline, change backwash mode into endogenous back flushing, thereby reduced the quantity of automatic backwash control valve relatively, and increased the secondary filter system 15 that composes in parallel by 2 20 μ m deep bed filter thereafter.This structure of filter form and principle of work are with cascade filtration unit 4-4.
Nanofiltration system changes the bigger HL80 series membranes element of processing power into.
Control unit 6-6 is based on hydraulic control system, and hydraulic control system is made up of controlled filter device 51, control shut-off valve 52 and two-position three way control valve 53.Controlled filter device 51 adopts 3/4 cun 100 μ m manually to clean the lamination strainer, the mechanical impurity in the main filtering control water source.Control shut-off valve 52 adopts ordinary ball valve.Two-position three way control valve 53 is a manual control valve, links to each other operations such as the start-stop of realization system, back flushing with above-mentioned automatic level control valve 7, automatic backwash control valve 14 by nylon hose.Hydraulic control system can be installed on the apparatus body; Also can be independent of apparatus body, be installed in the job site, working state of system be controlled by hydraulicefficiency pipeline.
Through engineering practice, the main effluent index of embodiment 2 described devices satisfies standard-required fully, can be used for the water treatment of giving of down-hole mechanical equipment.Table 2 is in the engineering practice process of former water for the pit water with certain colliery, the north, the contrasting data that main water-in and water-out water-quality guideline and national standard require.
Table 2
| Test item | Outward appearance | The pH value | Calcium ions and magnesium ions (in lime carbonate) (mg/L) | Sulfate radical (mg/L) | Chlorion (mg/L) |
| Standard-required | Colourless, free from extraneous odour, no suspended substance and mechanical impurity | ??6.5-8.5 | ?≤100 | ??≤200 | ??≤200 |
| Influent quality 1 | Duskiness has iron rust, the coal grain | ??8.5 | ?410 | ??550 | ??185 |
| Effluent quality 1 | Meet the requirements | ??7.3 | ?56 | ??79 | ??85 |
| Influent quality 2 | Duskiness has iron rust, the coal grain | ??8.0 | ?450 | ??636 | ??163 |
| Effluent quality 2 | Meet the requirements | ??7.5 | ?50 | ??80 | ??73 |
| Influent quality 3 | Duskiness has iron rust, the coal grain | ??8.4 | ?390 | ??597 | ??246 |
| Effluent quality 3 | Meet the requirements | ??7.0 | ?44 | ??78 | ??91 |
| Influent quality 4 | Duskiness has iron rust, the coal grain | ??8.1 | ?480 | ??537 | ??193 |
| Effluent quality 4 | Meet the requirements | ??7.0 | ?53 | ??70 | ??89 |
Because the existing coal mine work area depth profile scope of China is wider, all have from the working face of having an opencast mining of nearly km, the working face that embodiment 1 is adapted to 70-200 rice depth range uses; The working face that embodiment 2 is adapted to 200-350 rice depth range uses.The engineering practice of above embodiment as can be known, device of the present invention utilizes the hydraulic pressure in the existing pipe network under the coal mine, the clean pit water of pit water or down-hole through common purifying treatment is carried out advanced treatment, can effectively remove wherein excessive solvability salt, make it reach " Code for design of industrial recirculating cooling water " and " coal mining enterprise's mine support standard---hydraulic support (post) is used oil in water emulsion, enriched material and high aqueous fluid hydraulic fluid MT76-2002 thereof " in relevant requirements, its water outlet can be used for the mechanical means higher to water quality requirement, thereby alleviates the contradiction that exists in the water utilizing process of down-hole.This equipment need not electric power and other power, can satisfy the downhole safety requirement.
All components of the present invention can be installed in the steel casing, and bottom half is provided with skid and towing pad, can move, install location etc. in the tunnel that the down-hole is not open to traffic by cooperating with outside windlass.This structure is adapted to Working environment under the coal mine, is convenient to move, pull, and installation and maintenance simultaneously are simple, are adapted to the present state of the art of China's coal-mine.Device after the assembling only need be installed into rising pipe, liquid level control tube and blow-off line when using, and can start working; Running maintenance only needs regularly to add no iodine edible salt (main chemical compositions is a sodium-chlor).
It should be noted that: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1. mine water for underground coal mine advanced treatment apparatus, it is characterized in that: this device is arranged in the down-hole, comprising:
Be used to reduce and stable pipeline comes the pressure regulating unit of water pressure;
Be used for removing the one-level filtering unit of pit water impurity;
Be used for removing the hard unit that removes of water calcium, magnesium ion;
Be used for removing the cascade filtration unit of water residual impurity; With
Further remove yin, yang ionic nano-filtration unit in the water;
Described pressure regulating unit, one-level filtering unit, remove hard unit, cascade filtration unit, nano-filtration unit and link to each other successively by pipeline with control unit.
2. a kind of mine water for underground coal mine advanced treatment apparatus according to claim 1, it is characterized in that: also comprise the control unit that is used for control pressure regulon and one-level filtering unit, control unit is based on hydraulic control system, connect to form successively by controlled filter device, control shut-off valve and two-position three way control valve, the two-position three way control valve by pipeline be arranged on the automatically controlled valve of pressure regulating unit and be connected with the one-level filtering unit.
3. a kind of mine water for underground coal mine advanced treatment apparatus according to claim 1 and 2, it is characterized in that: described pressure regulating unit comprises strainer, reducing valve and flow control valve, the feed-water intake of being located at the pressure regulating unit front end successively with strainer, reducing valve, flow control valve pipe connection.
4. a kind of mine water for underground coal mine advanced treatment apparatus according to claim 1 and 2 is characterized in that: described one-level filtering unit comprises grade one filter and back flushing control valve, and described grade one filter is the lamination strainer.
5. a kind of mine water for underground coal mine advanced treatment apparatus according to claim 3 is characterized in that: described one-level filtering unit comprises grade one filter and back flushing control valve, and described grade one filter is the lamination strainer.
6. a kind of mine water for underground coal mine advanced treatment apparatus according to claim 1 and 2, it is characterized in that: describedly remove hard unit and comprise automatic softening agent, described cascade filtration unit comprises the secondary filter that is provided with sewage draining exit, secondary filter and automatic softening agent pipe connection, described secondary filter is deep bed filter or candle filter.
7. a kind of mine water for underground coal mine advanced treatment apparatus according to claim 1 and 2, it is characterized in that: described nano-filtration unit comprises nanofiltration device and pressure controlled valve, described nanofiltration device is made of nanofiltration membrane and pressurized vessel.
8. a kind of mine water for underground coal mine advanced treatment apparatus according to claim 5, it is characterized in that: described nano-filtration unit comprises nanofiltration device and pressure controlled valve, described nanofiltration device is made of nanofiltration membrane and pressurized vessel.
9. mine water for underground coal mine deep treatment method, it is characterized in that: pit water at first enters described pressure regulating unit through pipeline makes pipeline come water pressure from 2.5～3.5Mpa decompression stable regulation to 0.6～0.7Mpa, filter the impurity of removing in the pit water through the one-level filtering unit then, again through removing the calcium ions and magnesium ions in the hard unit removal pit water, then enter cascade filtration unit cascade filtration and remove residual turbidity in the water, the zwitterion that enters at last in the nano-filtration unit removal water makes water outlet up to standard.
10. a kind of mine water for underground coal mine deep treatment method according to claim 9 is characterized in that: described pressure regulating unit and one-level filtering unit carry out Long-distance Control by control unit.
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| CN102716615A (en) * | 2012-07-09 | 2012-10-10 | 宁波长壁流体动力科技有限公司 | Clear water filtering station under coal mine |
| CN102786185A (en) * | 2012-08-02 | 2012-11-21 | 中国矿业大学 | Ecological northern alkaline mine water treatment system and ecological northern alkaline mine water treatment method |
| CN103241889A (en) * | 2013-05-23 | 2013-08-14 | 山东科一力电气有限公司 | Mine electroless drinking water purifying device |
| CN106495344A (en) * | 2016-11-11 | 2017-03-15 | 平安开诚智能安全装备有限责任公司 | Underground coal mine water treatment system |
| CN107032539A (en) * | 2016-12-18 | 2017-08-11 | 金宇龙 | Coal mine underground reservoir combined type water purifying device and its process for purifying water |
| CN107298496A (en) * | 2017-07-25 | 2017-10-27 | 山东东山王楼煤矿有限公司 | A kind of mine water reutilization system |
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