CN202246298U - Underground purification treatment device for coal mine water - Google Patents
Underground purification treatment device for coal mine water Download PDFInfo
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- CN202246298U CN202246298U CN201120314299XU CN201120314299U CN202246298U CN 202246298 U CN202246298 U CN 202246298U CN 201120314299X U CN201120314299X U CN 201120314299XU CN 201120314299 U CN201120314299 U CN 201120314299U CN 202246298 U CN202246298 U CN 202246298U
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Abstract
The utility model discloses an underground purification treatment device for coal mine water, which comprises a lifting unit, a coagulating sedimentation unit and an ultrafiltration unit, and a chemicals adding unit is further arranged in front of the coagulating sedimentation unit. The underground purification treatment device for the coal mine water is simple and compact in structure, scientific and reasonable in treatment method, overcomes a plurality of shortcomings in the prior art, and obtains the advantages of being simple in equipment, convenient to use and maintain, unnecessary in arrangement of disinfection equipment, less in power equipment, small in covered space, suitable to use in narrow environment under a coal mine and good in purification effect and quality of discharged water.
Description
Technical field
The utility model relates to the purification of waste water treatment technology, relates in particular to purifying processing device under a kind of coal mine well.
Background technology
Coal mine water is that drainings such as dustproof in being produced by the underground water burst that produces in the recovery process, face of land wet water and digging, apparatus cools and slip casting compile and form; Because pit water receives the pollution of rot mine timber and ight soil etc. in compiling process; Make in the pit water that except that containing with the coal dust be the main suspended substance; The organism and the coliform that also contain some amount are the Coal Production waste water with typical industry characteristic.Pit water generally can be used as the downhole production water after purifying treatment, be one of effective way that solves the mining area water shortage problem, meets the principles and policies of national environmental protection, energy-saving and emission-reduction.
China's coal-mine corporate boss will be distributed in the north and the northwestward, is main with pit mining.The existing common way of pit water purifying treatment is: pit water in underworkings through manage, ditch (canal) compiles the laggard sump of going into; Rise to ground by wet-pit then and get into pit water treatment plant (station), the clear water after the processing is got back to the down-hole as water of productive use through piping system again.
The pit water purification process technique of day mineral well water treatment plant (station) is generally: coagulating sedimentation (or clarification)-filtration-sterilization process, floor space is big, system complex, is not suitable under coal mine, using in the narrow and small environment.Chinese patent " a kind of method and device that is used for mine water deeply purifying " (ZL200510002687.3) has been announced method and the device that " interception of flocculation-micro-filtration (CMF) and nanofiltration (NF) " purifies; This method and apparatus can only purifying treatment contain the very low pit water of suspended substance; The general requirement suspension content is less than 50mg/L, even lower.And the suspension content in China's 80% above coal mine water surpasses 50mg/L, is mg/L up to a hundred even thousands of, behind this pit water dosing coagulant and the coagulant aids, forms a large amount of flcos (alumen ustum), must remove through precipitation process.If sand filtration or micro-filtration are directly adopted in the flocculation back, certainly will cause cycle filtration phase very short, need back flushing soon, the clear water major part after the filtration is used in again in the back flushing, and efficient is very low, in engineering practice, has basically no operability.The treatment system that patent " mine water down-hole treatment system " (ZL200610114466.X) is announced, complex process, power-equipment are many, the operational administrative trouble, and also effluent quality coliform index can't satisfy fire-fighting under the coal mine, watering water quality standard.
The utility model content
The utility model provides purifying processing device under a kind of coal mine well, and in order to solve defective of the prior art, implementation structure is simple, and floor space is little, decontamination effect improving is good, is applicable under the coal mine to use in the narrow and small environment.
Purifying processing device under the coal mine well; Comprise the lift unit (presser unit), coagulating sedimentation unit and the ultra filtration unit that connect in order through pipeline, on the pipeline between said lift unit and coagulating sedimentation unit and/or said lift unit water inlet also be provided with medicament and add the unit.Water (flow) direction is lift unit → coagulating sedimentation unit → ultra filtration unit.The lifting water pump of said lift unit can be selected dry water pump or submersible pump for use, is used for coal mine water is forced into the needed pressure of purifying processing device under the coal mine well from water collecting basin (well)/sump lifting.Suspended substance and the colloidalmaterial in the coal mine water mainly removed in said coagulating sedimentation unit; Main suspended substance, colloidalmaterial and the coliform of further removing in the coal mine water of said ultra filtration unit, said medicament adds the unit and is used for dosing coagulant and/or coagulant aids.
Further, said coagulating sedimentation unit comprises line mixer, flocculation reaction district and the settling region that connects in order through pipeline.Said settling region is sloping plate deposition district or tube settling district.In the unitary flocculation reaction of coagulating sedimentation district; Suspended substance in the pit water, colloidalmaterial and coagulating agent, coagulant aids through compression double electric layer, electrically neutralization, adsorption bridging, net is caught or roll up the effect of sweeping; Suspended substance and colloidalmaterial in the pit water are taken off surely, and form larger-size flco gradually.Because the suspended substance in the pit water is main with coal dust; The flco that the flocculation back forms; Be different from surface water and with the silt particle be the flco that main suspended substance flocculation forms, have light specific gravity, characteristics such as loosely organized, sloping plate deposition district or tube settling district surface load are got 3.6～7.2m
3/ (m
2H), make the flco that forms in the flocculation reaction district, as much as possible in the sloping plate deposition district or the tube settling district remove, to alleviate the load of subsequent ultrafiltration, sloping plate deposition district or tube settling district delivery turbidity＜10NTU.
Further; The ultra-filtration membrane aperture that said ultra filtration unit adopts is 0.1～0.01 μ m; The ultra-filtration membrane material is a kind of in mineral membrane, organic membrane and the inorganic/organic hybrid films, and the kit form of ultra-filtration membrane is one or more in tubular membrane, hollow-fibre membrane, flat sheet membrane and the rolled film.Ultra filtration unit is to be motivating force with ultra-filtration membrane pressure at both sides difference; Can realize through malleation 0.01～0.2Mpa or negative pressure 0.01～0.05Mpa; Because the aperture of ultra-filtration membrane is less, there not be the pollutents such as suspended substance, colloid, coliform of removal further to remove effectively in the coagulating sedimentation unit.
Further.Said medicament adds the unit can adopt utility model patent " medicine system and device " technical scheme (ZL201020623574.1); Be used for dosing coagulant Poly aluminum Chloride (PAC) (PAC) 20～260mg/L and SEPIGEL 305 (PAM) 0.1～2.0mg/L; That optional is coagulant polymeric aluminium chloride (PAC) 30～50mg/L and SEPIGEL 305 (PAM) 0.15～0.30mg/L; Through the inner special tectonic of line mixer, make coagulating agent and pit water accomplish short mix, this medicine system and device are without external source; And control method is simple, is particularly suitable for Working environment under the coal mine.
Further, the water outlet of said ultra filtration unit is connected with the retaining unit, is used for storage through filtering purifying waste water.
The treatment process of purifying processing device under the said coal mine well may further comprise the steps:
After the lifting of coal mine water, to wherein adding coagulating agent and coagulant aids, preferred addition sequence adds coagulant aids after adding coagulating agent earlier, flocculation reaction time 5～20min, suspended substance and colloidalmaterial in the removal pit water; The settling region supernatant liquid is carried out ultrafiltration be purified water, further remove suspended substance, colloidalmaterial and coliform in the pit water, purifying waste water can be used as water of productive use under the coal mine.
Further; Said coagulating agent is one or more in Tai-Ace S 150, Poly aluminum Chloride (PAC), iron trichloride, ferrous sulfate, bodied ferric sulfate, polymeric ferric aluminum and the polymeric aluminium-silica; Said coagulating agent is Poly aluminum Chloride (PAC) (PAC) preferably, and addition is 20-260mg/L, preferably 30～50mg/L; Said coagulant aids is one or more in activated silicic acid, SEPIGEL 305, clay, sodium-alginate and the gelatine, and coagulant aids is SEPIGEL 305 (PAM) preferably, and addition is 0.1-2mg/L, preferably 0.15～0.3mg/L; Said sloping plate deposition or tube settling surface load 3.6～7.2m
3/ (m
2H).
Further, the aperture of said ultrafiltration (UF) employing is 0.1～0.01 μ m ultra-filtration membrane; Said ultra-filtration membrane material is a kind of in mineral membrane, organic membrane and the inorganic/organic hybrid films; The kit form of said ultra-filtration membrane is one or more in tubular membrane, hollow-fibre membrane, flat sheet membrane and the rolled film.
The pH6.5 that purifies waste water～8.5 that purifying treatment method obtains under the above-mentioned coal mine well of process; Turbidity＜1NTU; Total coli group 0CFU/100mL, water quality is superior to stipulating in the general device water supply standard among " fire-fighting under the coal mine, watering water quality standard " GB35038-2006: suspension content is no more than 30mg/L, and suspension particle is not more than 0.3mm; PH6～9, coliform are no more than 3/L.
Simple in structure, the compactness of purifying processing device mainly has following several respects advantage compared with prior art under the utility model coal mine well;
(1) equipment is simple, is convenient to installation and maintenance; Take up an area of for a short time, be applicable under the coal mine and use in the narrow and small environment;
(2) need not sterilization equipment." fire-fighting under the coal mine, watering water quality standard " GB35038-2006 regulation coliform＜3/L; Because pit water receives the pollution of rot mine timber and ight soil etc. in process is confluxed in the down-hole, so pit water must make the coliform index reach standard-required after the purifying treatment of down-hole.Existing day mineral well water treatment facility is realized through sterilizing, and adopts dioxide peroxide or Youxiaolin sterilization equipment usually.Because consider the requirement of secure context under the coal mine, dioxide peroxide and Youxiaolin equipment all are not suitable for using in the down-hole.When the utility model realizes further removing suspended substance and the colloidalmaterial in the pit water through ultra filtration unit, remove the coliform in the pit water synchronously, saved sterilization equipment;
(3) decontamination effect improving is good, and effluent quality is good, and qualification rate is near 100%.Delivery turbidity＜1NTU, pH6.5～8.5, total coli group 0CFU/100mL;
(4) power-equipment is few, is particularly suitable for Working environment under the coal mine, is easy to realize automatic control, convenient operation and management.
The method that the utility model provides is simple, and technical process is short, sterilization equipment need be set, and power-equipment is few, and the effluent quality qualification rate is particularly suitable for fixing or portable Working environment under the coal mine near 100%.Under the coal mine well after the purifying treatment as water of productive use, when reducing the pipeline investment, also saved effluent cost.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of specification sheets, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of purifying processing device under the utility model coal mine well;
Fig. 2 is the schema of purifying processing device treatment process under the utility model coal mine well.
In conjunction with accompanying drawing, Reference numeral is following among the utility model embodiment:
The former pond of 1-; The 2-lift unit; The 3-line mixer;
4-flocculation reaction district; 5-tube settling district; The 6-ultra filtration unit;
7-retaining unit; 8-backwash water pump; 9-PAC adds pipe;
10-PAM adds pipe; 11-settling region mud valve; 12-backwash drainage exhaust valve;
The 13-intake valve; 14-ultra filtration unit mud valve; 15-backwash water intaking valve;
16-ultra filtration unit outlet valve.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model clearer; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Present embodiment discloses purifying processing device under a kind of coal mine well, comprises the lift unit (lifting water pump), coagulating sedimentation unit and the ultra filtration unit that connect in order through pipeline, also is provided with medicament at the lift unit water inlet and adds the unit.Lifting gear is used for coal mine water is forced into the needed pressure of purifying processing device under the coal mine well from the pump well lifting.Suspended substance and the colloidalmaterial in the coal mine water mainly removed in the coagulating sedimentation unit; Main suspended substance, colloidalmaterial and the coliform of further removing in the coal mine water of ultra filtration unit, medicament adds the unit and is used for dosing coagulant and coagulant aids.Purifying processing device per hour can be handled 50 tons well water under the coal mine well.
Adopt the index of present embodiment processing coal mine water treatment front and back as shown in table 1; It is thus clear that purifying processing device can effectively reduce suspended substance and the total coli group content in the coal mine well water under the coal mine well; Effectively reduce the turbidity of well water simultaneously, water outlet meets " fire-fighting under the coal mine, watering water quality standard " GB35038-2006 regulation.Well water after the purification can be obtained good economic benefit and social benefit as water of productive use.
Water quality before and after the purifying treatment under certain coal mine well of table 1
Fig. 1 is the structural representation of treatment unit under the utility model coal mine well.Fig. 2 is the schema of purifying processing device treatment process under the utility model coal mine well.
Purifying processing device is as shown in Figure 1 under the disclosed coal mine well of present embodiment; Comprise: purifying processing device under the coal mine well; Comprise the former pond 1, lift unit 2, coagulating sedimentation unit, ultra filtration unit 6 and the retaining unit 7 that connect in order through pipeline, on the pipeline between former pond 1 and the lift unit 2, also be provided with coagulating agent PAC and add pipe 9.On the pipeline between lift unit 2 and the coagulating sedimentation power supply, also be provided with coagulant aids PAM and add pipe 10.Lift unit 2 adopts lift pump, is used for coal mine water is forced into the required pressure of purifying processing device under the coal mine well from the sump lifting.Suspended substance and the colloidalmaterial in the coal mine water mainly removed in the coagulating sedimentation unit; Ultra filtration unit 6 main suspended substance, colloidalmaterial and the coliforms of further removing in the coal mine water, retaining unit 7 is used for storage through filtering purifying waste water.
The coagulating sedimentation unit comprises line mixer 3, flocculation reaction district 4 and the tube settling district 5 that connects in order through pipeline.5 arrange sexangle honeycomb inclined-tube, caliber Φ 35mm, tiltedly long 1000m in the tube settling district.Because the suspended substance in the pit water is main with coal dust, the flco that the flocculation back forms, being different from surface water is the flco that main suspended substance flocculation forms with the silt particle, has light specific gravity, characteristics such as loosely organized, tube settling district 5 surface loads are 5.4m
3/ (m
2H),
Present embodiment coagulating sedimentation unit adopts the pressure water outlet to get into ultra filtration unit 6; Ultra filtration unit 6 adopts pvdf (PVDF) hollow-fibre membrane; Have HS and high resistant to pollution ability; Membrane pore size is 0.1～0.01 μ m, because the aperture of ultra-filtration membrane is less, not have the pollutents such as suspended substance, colloid, coliform of removal further to remove effectively in the coagulating sedimentation unit.
Purifying processing device principle of work under the above-mentioned coal mine well:
Purifying treatment front and back water quality is as shown in table 2 under certain coal mine well.
In conjunction with Fig. 1 and Fig. 2; The algorithm of treatment unit is following under the coal mine well: pit water gets into the unitary flocculation reaction of coagulating sedimentation district 4 in the former pond 1 after lift unit 2 promotes; Between flocculation reaction district 4 and lift unit 2, line mixer 3 is set; PAC is set on the suction line of lift unit 2 adds pipe 9 dosing coagulant Poly aluminum Chloride (PAC) (PAC) 40mg/L; PAM is set on the outlet pipeline between lift unit 2 and the line mixer 3 to add pipe and 10 adds coagulant aids SEPIGEL 305 (PAM) 0.25mg/L; The impeller that relies on the lift pump high speed rotating is Poly aluminum Chloride (PAC) (PAC) and pit water short mix, according to line mixer 3 with SEPIGEL 305 (PAM) and pit water short mix.
The unitary flocculation reaction of coagulating sedimentation district 4 and tube settling district 5 are the pressure type Inlet and outlet water in the present embodiment.In flocculation reaction district 4; Suspended substance in the pit water, colloidalmaterial and coagulating agent, coagulant aids through compression double electric layer, electrically neutralization, adsorption bridging, net is caught or roll up the effect of sweeping; Suspended substance and colloidalmaterial are taken off surely; And form gradually size flco (alumen ustum), the flocculation reaction time is 8min.
The flco of 4 formation in the flocculation reaction district, the overwhelming majority be 5 removals in the tube settling district, and tube settling district 5 delivery turbidities are 3～7NTU.The heavy mud in tube settling district 5 is regularly discharged the coagulating sedimentation unit through settling region mud valve 11.
Make the hollow fiber ultrafiltration membrane both sides produce pressure difference through malleation 0.01～0.2Mpa, the suspended substance in the further removal of the realization pit water, colloid, coliform etc.Ultra filtration unit 6 water outlets rely on overbottom pressure from flowing into retaining unit 7, and effluent quality is as shown in table 1.
The back-washing equipment of present embodiment ultra filtration unit 6 is a backwash water pump 8, and the backwash cycle is 30min, backwash time 60s.Backwash process is: ultra filtration unit 6 stops into water, closes ultra filtration unit outlet valve 16, opens backwash drainage exhaust valve 12; Open intake valve 13 again, the gas flushing time is 30s, closes intake valve then and opens backwash water intaking valve 15; Restart backwashing pump, the water backwashing time is 30s.Gas, water flushing are closed backwash water intaking valve 15 after accomplishing, and open the ultra filtration unit outlet valve, recover normally operation.
Hold back the quantity of suspended substance according to ultra filtration unit, 3～4h opens ultra filtration unit mud valve 14, to get rid of the suspended substance held back in the ultra filtration unit, colloid etc.
Water quality before and after the purifying treatment under certain coal mine well of table 2
What should explain at last is: above embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (7)
1. purifying processing device under the coal mine well; It is characterized in that; Comprise the lift unit, coagulating sedimentation unit and the ultra filtration unit that connect in order through pipeline, on the pipeline between said lift unit and coagulating sedimentation unit and/or said lift unit water inlet also be provided with medicament and add the unit.
2. purifying processing device under the coal mine well according to claim 1 is characterized in that, said coagulating sedimentation unit comprises line mixer, flocculation reaction district and the settling region that connects in order through pipeline.
3. purifying processing device under the coal mine well according to claim 2 is characterized in that, said settling region is sloping plate deposition district or tube settling district.
4. purifying processing device under the coal mine well according to claim 1 is characterized in that the water outlet of said ultra filtration unit is connected with the retaining unit.
5. according to purifying processing device under any described coal mine well of claim 1, it is characterized in that the ultra-filtration membrane aperture that said ultra filtration unit adopts is 0.1～0.01 μ m.
6. purifying processing device under the coal mine well according to claim 5 is characterized in that, said ultra-filtration membrane material is a kind of in mineral membrane, organic membrane and the inorganic/organic hybrid films.
7. according to purifying processing device under claim 5 or the 6 described coal mine wells, it is characterized in that the kit form of said ultra-filtration membrane is one or more in tubular membrane, hollow-fibre membrane, flat sheet membrane and the rolled film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120314299XU CN202246298U (en) | 2011-08-25 | 2011-08-25 | Underground purification treatment device for coal mine water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120314299XU CN202246298U (en) | 2011-08-25 | 2011-08-25 | Underground purification treatment device for coal mine water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202246298U true CN202246298U (en) | 2012-05-30 |
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ID=46107570
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120314299XU Expired - Fee Related CN202246298U (en) | 2011-08-25 | 2011-08-25 | Underground purification treatment device for coal mine water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202246298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010752A (en) * | 2017-04-10 | 2017-08-04 | 安徽恒源煤电股份有限公司 | A kind of emulsion matches somebody with somebody liquid purifier |
| CN113006870A (en) * | 2021-03-03 | 2021-06-22 | 同煤国电同忻煤矿有限公司 | High-efficient water cyclic utilization reservoir construction of intelligent mine of ten million tons |
-
2011
- 2011-08-25 CN CN201120314299XU patent/CN202246298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010752A (en) * | 2017-04-10 | 2017-08-04 | 安徽恒源煤电股份有限公司 | A kind of emulsion matches somebody with somebody liquid purifier |
| CN113006870A (en) * | 2021-03-03 | 2021-06-22 | 同煤国电同忻煤矿有限公司 | High-efficient water cyclic utilization reservoir construction of intelligent mine of ten million tons |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311201 Hangzhou, Xiaoshan District, Zhejiang Province Road No. 288 show Patentee after: CHINA COAL TECHNOLOGY & ENGINEERING GROUP HANGZHOU ENVIRONMENTAL PROTECTION RESEARCH INSTITUTE CO., LTD. Address before: 311201 Hangzhou, Xiaoshan District, Zhejiang Province Road No. 288 show Patentee before: Hangzhou Environmental Protection Research Institute, Coal Science Research Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20150825 |
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| EXPY | Termination of patent right or utility model |