CN103304053B - Treatment system for converting mine waste-rock dredging drainage water into production water - Google Patents
Treatment system for converting mine waste-rock dredging drainage water into production water Download PDFInfo
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- CN103304053B CN103304053B CN201310206189.5A CN201310206189A CN103304053B CN 103304053 B CN103304053 B CN 103304053B CN 201310206189 A CN201310206189 A CN 201310206189A CN 103304053 B CN103304053 B CN 103304053B
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Abstract
The invention discloses a treatment system for converting mine waste-rock dredging drainage water into production water. The system comprises a sludge treatment system, as well as a primary water tank with a primary water pump, a pipeline mixer, a star-shaped flocculation tank, a cantboard sedimentation tank, a filtering tank and a clear water tank which are sequentially communicated by virtue of pipelines; the pipeline mixer is communicated with a coagulant aid water tank by virtue of a flocculating agent medicine adding pump, an coagulant aid medicine adding pump and a flocculating agent water tank; the filtering tank is communicated with a pipeline with a Roots blower; a clear water tank is communicated with a backwashing water pump of a filter and is connected with an auxiliary machine circulating water treatment system and a boiler feedwater treatment system in a water-consuming system through delivery pipes; the filter tank is communicated with the primary water tank by virtue of the backwashing drainage pipeline of the filter. By virtue of multi-layered sewage purification, the mine waste-rock dredging drainage water can be effectively subjected to solid-liquid separation treatment, a large quantity of coal dust particles in the water body can be removed, and backwashing drainage water of the filter returns to the primary water tank to be recycled so as not to result in waste of resources, thus saving energy resources.
Description
Technical field
The present invention relates to a kind of mine and dredge the treatment system that cash draining is converted into water of productive use.
Background technology
China often produces 1t colliery average emission pit water about 2.5t, and national colliery annual emissions is about 7,000,000,000-90 billion cubic meters, 2009, and China's raw coal output reaches 30.5 ten thousand tons, pit water quantity discharged about 91.5 billion cubic meter.If these waste water do not add process externally discharge arbitrarily, not only waste valuable water resources, and produce serious pollution by mining area and near zone thereof.The utilization ratio that cash draining dredged by current mine is not high, and major cause is that it affects by coal mining, causes mine to dredge cash draining salinity high, the high and fluctuation comparatively large (mainly Coal Dust) of suspension content.Cash draining water quality complicated component dredged by mine, the saltiness in water, SiO
2, hardness, the indices such as total alkalinity are all high than natural water, if it directly discharged, very easily cause the pollution of environment.
China's water resources is seriously deficient, along with the continuous growth of population, economic fast development, the progress of society and making rapid progress of the level of urbanization, the problem of water resources shortage becomes increasingly conspicuous, and shortage of water resources has become restriction thermal power generation corporations stumbling-block preventing the development, and the problem that solve shortage of water resources just must be correct in present situation, rational use water resources, we just can be conducive to the steady progression of society like this.Effectively and reasonably utilize mine drainage to be solve in coal production process the unique channel producing pit water, not only solve the problem of the external exhaust emission environment of swallet but also alleviate the problem of urban industry shipwreck, the combination of the two, make mine dredge cash draining and realize waste water discharge-reducing and water resources rationalization application, be indirectly converted into the economic benefit of enterprise.
The processing mode of at present dredging cash draining to mine adopts the mode of natural subsidence or simple coagulating kinetics, natural subsidence processing efficiency is low, the simple coagulating kinetics of tradition falls flat, it is not high that system after simple coagulating treatment goes out water use efficiency, general selection is discharged on the spot, causes great water resource waste like this.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of mine and dredges the treatment system that cash draining is converted into water of productive use, and it is relatively simple for structure, can remove most suspended substances and colloidal solid in water body, good purification.
The present invention solves the problems of the technologies described above the technical scheme taked: the treatment system that cash draining is converted into water of productive use dredged by a kind of mine, and its gordian technique is: it comprises sludge treating system and by the former pond of the band raw water pump of pipeline sequential communication, line mixer, star flocculation basin, inclined-plate clarifying basin, filtering basin and clean water basin;
Described line mixer is communicated with coagulant aids water tank with flocculation agent water tank respectively by flocculation agent dosing pump, coagulant aids dosing pump, described filtering basin and the pipeline connection being with roots blower, described clean water basin are communicated with filter backwash water pump, described clean water basin are connected with the subsidiary engine circular water treating system in water system and Boiler water Feeding System system by transfer lime, and described filtering basin are communicated with former pond by filter backwash discharge tube;
Described sludge treating system comprises the collection mud sump be communicated with inclined-plate clarifying basin with star flocculation basin, and described collection mud sump is communicated with concentration basin by sludge lifting pump, and described concentration basin is connected with water extracter by sludge delivery pump, and water extracter is communicated with former pond via pipeline.
The beneficial effect adopting technique scheme to produce is:
(1) the present invention is by multi-level sewage purification, cash draining can be dredged to mine and carry out efficient solid-liquid separation process, and define to control the high-efficiency solid-liquid separation system that coagulating agent chemical feeding quantity is core, after cascade filtration, Coal Dusts a large amount of in water body can be got rid of, filtering basin backwash draining is got back to former pond and can be recycled, the waste of water resources can not be caused, the mud cake that desliming treatment system is formed after water extracter dehydration, combustion can be mixed as a kind of fuel together with coal, save the energy;
(2) treatment system of the present invention is adopted to process thin cash water, system run all right, effluent quality is better, can be directly used in the moisturizing of Controlling Auxiliaries in Power Plants recirculated cooling water, Boiler water Feeding System system water source, significantly improve enterprise's water resources and utilize level, effectively reduce enterprise's production cost.
(3) after adopting treatment system of the present invention to carry out treatment for reuse to thin cash water; efficiently solve the whereabouts problem that cash draining dredged by mine; both the transformation of thermal power generation corporations' use water water source pattern had been promoted; pit water " zero release " in coal mining enterprise's production process can be realized again; to realizing water saving, energy-saving and emission-reduction, environment protection, improving water resource environment and there is important strategic importance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In the accompanying drawings: 1 former pond, 2 star flocculation basins, 3 inclined-plate clarifying basins, 4 collection mud sumps, 5 filtering basin, 6 clean water basin, 7 concentration basins, 8 water extracters, 9 subsidiary engine circular water treating systems, 10 Boiler water Feeding System systems, 11 flocculation agent water tanks, 12 coagulant aids water tanks, 13 raw water pumps, 14 sludge lifting pumps, 15 roots blowers, 16 filter backwash water pumps, 17 sludge delivery pumps, 18 mud cakes, 19 line mixers, 20 filter backwash discharge tubes, 21 flocculation agent dosing pumps, 22 coagulant aids dosing pumps.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail:
See accompanying drawing 1, the present invention includes sludge treating system and by the former pond 1 of the band raw water pump of pipeline sequential communication, line mixer 19, star flocculation basin 2, inclined-plate clarifying basin 3, filtering basin 5 and clean water basin 6;
Described line mixer 19 is communicated with coagulant aids water tank 12 with flocculation agent water tank 11 respectively by flocculation agent dosing pump 21, coagulant aids dosing pump 22, described filtering basin 5 and the pipeline connection being with roots blower 15, described clean water basin 6 are communicated with filter backwash water pump 16, described clean water basin 6 are connected with the subsidiary engine circular water treating system 9 in water system and Boiler water Feeding System system 10 by transfer lime, and described filtering basin 5 are communicated with former pond 1 by filter backwash discharge tube 20;
Described sludge treating system comprises the collection mud sump 4 be communicated with inclined-plate clarifying basin 3 with star flocculation basin 2, described collection mud sump 4 is communicated with concentration basin 7 by sludge lifting pump 14, described concentration basin 7 is connected with water extracter 8 by sludge delivery pump 17, and water extracter 8 is communicated with former pond 1 via pipeline.
The pulsation in floc settlement process can be suppressed to disturb by closely spaced inclined-plate clarifying basin 3, the capacity of resisting impact load of operation strengthens greatly, is conducive to spoil disposal.Filtering basin 5 can remove small flocs unit residual in water, and mine drainage is purified further.
See accompanying drawing 1, during work, the present invention utilizes raw water pump 13 that the water extraction in former pond 1 is raised to star flocculation basin 2, coagulant aids and flocculation agent mix fully with Yuan Shui by period in line mixer 19, form little alumen ustum, by being formed evenly and larger alumen ustum after star flocculation basin 2, enter inclined-plate clarifying basin 3 and carry out mud-water separation, got rid of in inclined-plate clarifying basin 3, obtain the water purification after coagulation; Water outlet after coagulation flows by gravitational force into filtering basin and filters, and utilizes filtering basin 5 to get rid of flocs unit remaining in water, obtains the product water of low turbidity, supply subsidiary engine circular water treating system 9 and Boiler water Feeding System system 10.
In addition, in filtering basin operational process, will produce certain pressure reduction, indication had been lost efficacy and need have been carried out backwash to it, and startup filter backwash water pump 16 and roots blower 15 pairs of filtering basin 5 carry out air water backwash simultaneously, and backwash water is discharged to former pond 1 recycle.
In the process that native system runs, as star flocculation basin 2 and inclined-plate clarifying basin 3 will produce a certain amount of mud, be discharged in collection mud sump 4, utilize sludge lifting pump 14 be transported to concentration basin 7 carry out concentrated after, send into water extracter 8 by sludge delivery pump 17 to dewater, the sewage produced gets back to former pond 1, and the mud cake 18 of formation can be transported outward, also can as the fuel of boiler together with coal.
The present invention effectively utilizes the special construction feature of line mixer 19 itself, former water can be completed instantaneously with mixing of medicament, the chemical feeding quantity being controlled coagulating agent by operation can save about 30% than traditional coagulation apparatus, after star flocculation basin 2 and narrow space inclined plate settling basin 3 precipitate, most suspended substance in water body can be removed, filtered by hypermedia filtering basin 5, remove small flocs unit residual in water.By native system to mine drainage treatment for reuse, mine drainage rationalization utilization can be realized, energy-saving and emission-reduction, turn waste into wealth.
Product water after native system process, can be used as the auxiliary machine circulating cooling water of electricity power enterprise and the water source of Boiler water Feeding System system, for the transformation promoting thermal power generation corporations' use water water source pattern, not at single use surface water or underground water, the mine produced in coal enterprise's production process is dredged cash draining after the process of native system, the production water source as near coal-mine electricity power enterprise becomes a reality.
Claims (2)
1. the treatment system that cash draining is converted into water of productive use dredged by mine, it is characterized in that: it comprises sludge treating system and by the former pond (1) of the band raw water pump (13) of pipeline sequential communication, line mixer (19), star flocculation basin (2), inclined-plate clarifying basin (3), filtering basin (5) and clean water basin (6);
Described line mixer (19) is respectively by flocculation agent dosing pump (21), coagulant aids dosing pump (22) is communicated with coagulant aids water tank (12) with flocculation agent water tank (11), described filtering basin (5) and the pipeline connection being with roots blower (15), described clean water basin (6) are communicated with filter backwash water pump (16), described clean water basin (6) are connected with the subsidiary engine circular water treating system (9) in water system and Boiler water Feeding System system (10) by transfer lime, described filtering basin (5) are communicated with former pond (1) by filter backwash discharge tube (20),
Described sludge treating system comprises the collection mud sump (4) be communicated with inclined-plate clarifying basin (3) with star flocculation basin (2), described collection mud sump (4) is communicated with concentration basin (7) by sludge lifting pump (14), described concentration basin (7) is connected with water extracter (8) by sludge delivery pump (17), and water extracter (8) is communicated with former pond (1) via pipeline.
2. the treatment process that cash draining is converted into the treatment system of water of productive use dredged by mine according to claim 1, it is characterized in that: during work, the water extraction in former pond (1) is raised to star flocculation basin (2) by raw water pump (13), coagulant aids and flocculation agent mix fully with Yuan Shui by period in line mixer (19), form little alumen ustum, formed afterwards evenly and larger alumen ustum by star flocculation basin (2), enter inclined-plate clarifying basin (3) and carry out mud-water separation, got rid of in inclined-plate clarifying basin (3), obtained the water purification after coagulation; Water outlet after coagulation flows by gravitational force into filtering basin and filters, and utilizes filtering basin (5) to get rid of flocs unit remaining in water, obtains the product water of low turbidity, supply subsidiary engine circular water treating system (9) and Boiler water Feeding System system (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310206189.5A CN103304053B (en) | 2013-05-29 | 2013-05-29 | Treatment system for converting mine waste-rock dredging drainage water into production water |
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| CN201310206189.5A CN103304053B (en) | 2013-05-29 | 2013-05-29 | Treatment system for converting mine waste-rock dredging drainage water into production water |
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| CN103304053A CN103304053A (en) | 2013-09-18 |
| CN103304053B true CN103304053B (en) | 2015-05-20 |
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| CN106865822A (en) * | 2017-03-21 | 2017-06-20 | 西南交通大学 | Integrated purification of mine drainage system |
| CN108558074A (en) * | 2018-06-08 | 2018-09-21 | 南京必蓝环境技术有限公司 | A kind of high salinity working face sewage-treatment plant and method |
| CN113830952A (en) * | 2021-10-12 | 2021-12-24 | 远安县燎原矿业有限责任公司 | Phosphorite mine water treatment system and treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515383A (en) * | 2011-11-24 | 2012-06-27 | 西安热工研究院有限公司 | Water-saving clarification and purification system and process thereof |
| CN102616958A (en) * | 2012-03-29 | 2012-08-01 | 安徽省天虹绿洲环保科技有限公司 | Treatment technology of low concentration electroplating wastewater |
| CN202415298U (en) * | 2012-01-16 | 2012-09-05 | 中冶东方工程技术有限公司 | System capable of purifying muddy water circularly |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515383A (en) * | 2011-11-24 | 2012-06-27 | 西安热工研究院有限公司 | Water-saving clarification and purification system and process thereof |
| CN202415298U (en) * | 2012-01-16 | 2012-09-05 | 中冶东方工程技术有限公司 | System capable of purifying muddy water circularly |
| CN102616958A (en) * | 2012-03-29 | 2012-08-01 | 安徽省天虹绿洲环保科技有限公司 | Treatment technology of low concentration electroplating wastewater |
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Effective date of registration: 20150409 Address after: 050091 Hebei high tech District of Shijiazhuang City Xinshi North Road, No. 368 Applicant after: Hebei Electric Power Construction & Adjustment Research Institute Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: Electric Power Research Institute of Hebei Electric Power Corporation Applicant before: Hebei Electric Power Construction & Adjustment Research Institute |
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Address after: 050091 Hebei high tech District of Shijiazhuang City Xinshi North Road, No. 368 Patentee after: National network Hebei Energy Technology Service Co., Ltd. Address before: 050091 Hebei high tech District of Shijiazhuang City Xinshi North Road, No. 368 Patentee before: Hebei Electric Power Construction & Adjustment Research Institute |
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