CN104370407B - A kind of well work mine water underground purifies and cyclic utilization system - Google Patents
A kind of well work mine water underground purifies and cyclic utilization system Download PDFInfo
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Abstract
The present invention relates to a kind of well work mine water underground purify and cyclic utilization system, the water sand piece-rate system being sequentially connected with, fine particle pretreatment system, strengthen coagulation system, flco speed subsystem, sludge treating system for three grades.The present invention has simplification pump selection and maintenance, the abrasion of minimizing pipeline and burn into are easy to process with follow-up water utilize the advantages such as technique is connected.
Description
Art
The present invention relates to a kind of well work mine water underground purify and cyclic utilization system.
Background technology
Traditional mine water treatment technique is to spend huge energy consumption will to collect in sump by the Central Pump Room of mine
Mine water rises to floor treatment, simultaneously as the deposition of coal dust rock dust, is usually the shape of " Cang Shui, half storehouse mud " in sump
State, has had a strong impact on the dischargeable capacity of sump, for preventing water damage from there is the biggest potential safety hazard.Simultaneously as water pump lifting
Be the sewage containing float, pump efficiency is severely impacted, and the pump housing and sewerage system damage are serious.Traditional handicraft accounts for
Ground area is huge, operation stability is poor, operating cost is high, investment is big.And industrial water under mine, need huge at surface construction
Clear water reserviors, complicated tubing is transported to underground work face, causes unnecessary waste.(1) the regular desilting of shaft sump
A difficult problem: the mud of deposition in sump, needs to dig clearly in time, and this can bring many potential safety hazards, spend substantial amounts of expense of bringing down stocks；
There is " messy " phenomenon in floor treatment technique, pollutant shift, and cause the secondary pollution of environment..
Along with the mine circular economy industrial that mine water resource is the most in short supply and water consumption is big is fast-developing, the money of mine water
Source is worth and increasingly comes into one's own, and particularly in hydropenia mining area, mine water has become as main industry, domestic water source,
And clearly write industry technical policy and design specification.Drainage sunk well in mine Mine Water Transacting Technology and Water purification at present
The tightst inseparable system engineering, has become as the primary goal for the treatment of mine drainage for recycling；Mine class enterprise
Floor treatment technique easily causes the unordered discharge of coal slime, wastes mine resource.
Summary of the invention
It is an object of the invention to provide a kind of in the direct treatment and purification of down-hole, first meet downhole production water, surplus
Rise to the technical matters that floor synthetic utilizes.Meet mine industry energy conservation, keep the safety in production, reduce production cost, water resource combine
Close the demand utilized.
The technical solution adopted for the present invention to solve the technical problems is: a kind of well work mine water underground purifies and circulation profit
By system, the water sand piece-rate system being sequentially connected with, fine particle pretreatment system, strengthen coagulation systems for three grades, flco speed is divided and is
System, sludge treating system；
Described water sand piece-rate system includes elevator, scrapper conveyor chute, collects mud sump and belt-type elevating conveyor, elevator,
Scrapper conveyor chute is separately fixed on the two side of collection mud sump, and belt-type elevating conveyor is connected with elevator；
Described fine particle pretreatment system includes the three grades of sedimentation tanks being sequentially connected with, and belt-type elevating conveyor is by mine water
Send into first order sedimentation tank, pneumatic sludge pump is set in first order sedimentation tank, stirring diving slurry is installed bottom two or three grades of ponds
Pump, three grades of sedimentation tank deposits, by the sludge treating system of transport pump to rear end, go the mine water after oil removal by quiet
State pipe-line mixer, one-level stirring pool；
Described three grades of reinforcement coagulation systems be sequentially connected with communicate static pipeline mixer, one-level stirring pool, two grades
Stirring pool and three grades of stirring pools, static pipeline mixer；
Described flco speed subsystem sludge treating system mud magnetic separating device, is connected by multiple rare-earth magnetic discs and forms, from
Three grades of stirring pools mine water out enters mud magnetic separating device, recycles after filter；
Described sludge treating system includes sludge pump and the pressure filter being sequentially connected with.
1, water sand piece-rate system:
Mine water is more than containing substantial amounts of diameter the coal petrography granule of 5mm, according to grading, counts roughly and account for float
More than 70%, it is achieved water particle diameter big with this part coal petrography granule separates, and is the key of this system process technology, is also follow-up work
The basis of skill.Owing to conditions down-hole limits, traditional eddy flow removes sand, gravitational settling technique cannot be applied.
Present invention employs bucket lifting+bottom 40T scraper plate chute+80 transhipment belt combined process of aperture 0.5CM.?
Mine water is after central authorities' water channel collects, and the fighter first flowing into the positive negative zero in tunnel arranged below collects mud sump, and in pond setting angle 80
Degree, the continuous way bucket elevator of lift bucket dehydration aperture 0.5cm, it is achieved the separation of major part granule, connect updip after collection mud sump
Pond salvaged by angle groove-like scraper plate chute, can process the particulate matter that the remaining particulate matter of lift bucket, lift bucket and chute are collected, focus on
The transhipment belt of lift bucket front end, can continuously, high throughput, realize water sand efficiently and separate and the rapid transport of mud is to mine
Transportation system.Mine water gravity flow after removing sand enters next processing unit.
2, fine particle pretreatment system:
Mine water after removing sand, the most a large amount of containing particle diameter, less than 5mm to the float more than 300 μm, (SS is for go further
Except this partial contamination thing, this technological design three swirler circle bores sedimentation tank deeply, arranges pneumatic spoil disposal in first order sedimentation tank
Pump, is delivered to the sludge treating system of rear end by the particulate matter of fast deposition, installs stirring diving slag in front end bottom two or three grades of ponds
Stock pump.Current tangent line enters, and increases bulky grain suspended substance sedimentation speed and deposition, and deposit is by the dirt of transport pump to rear end
Mud sump focuses on.The mine water after oil removal is gone to flow automatically entrance next unit again.
3, coagulation system is strengthened for three grades
Through the mine water of pretreatment, after by fine particle processing unit, arrange after first passing through third level preliminary sedimentation tank
Inclination angle static pipeline mixer, add PAC and dense media (Fe3O4 content 95%, moisture 8%, sulfur-bearing in blender
0.1%, true density 4.5g/cm3)) carry out the coagulating first season, water outlet enters first order high-speed stirred pond, and oar blade type stirs
Device, rotating speed 150r/min, after abundant coagulation stirs, in the stirring pool of the second level, add PAM(polyacrylamide), second level frame
Posture stirs, and rotating speed 90r/min, the third level adds strong mixing, frame-type, rotating speed 35r/min
Add the mine water of strong mixing coagulation through three grades, define the small floccule body with dense media as core, by hanging in water
Float and dense media particle flocculation to together with.Realizing the initial gross separation with water, gravity flow enters flco speed subsystem together.
4, flco speed subsystem.
Utilize magnetic force of inducting the dense media floc sedimentation float in waste water to be salvaged to separate, reach purification of water quality and suspension
The purpose that thing reclaims, it is necessary to meet following relationship
Wherein:
FMagnetic---act on the magnetic force in the floc sedimentation float with dense media as core；
∑FMachine---making a concerted effort of all mechanical forces contrary with magnetic force direction.
Weight component that ∑ F machine is included in aqueous medium, microgranule are along magnetic force FMagneticAqueous medium suffered during the motion of direction glues
Scold resistance and the acceleration resistance of grain orientation motion.
Only meet FMagnetic≥∑FMachineTime, dense media floc sedimentation float its is possible to adsorbed under the action of a magnetic field separation.
The usefulness law of down-hole treatment is pressed formula and is calculated:
Wherein:
N effectiveness parameters；
δ grain density；
The viscosity of μ water；
SAlwaysThe total effective area of magnetic action；
Q processes flow；
D particle diameter.
Magnetic force is the biggest, and down-hole treatment equipment effectiveness is the highest, and degree of association is first power proportional relation.
Magnetic force effective area is the biggest, and down-hole treatment equipment effectiveness is the highest, and degree of association is first power proportional relation.
This process selection rare-earth Nd-Fe-B permanent magnetic steel (intensity between Surface field intensity 3500gs adjacent magnetic field
2000gs), form the high magnetic field intensity of work space and high magnetic field gradients, make in waste water dense media microgranule and flocculation adsorption at it
On namagnetic substance microgranule, under magnetic field force effect, overcome the mechanical external force such as fluid resistance and microgranule gravity, it is the most fixed to produce
To motion, absorption is on rare-earth magnetic disc surface, thus the float in waste water is separated, and completes flco speed point process.Remove
The mine water gravity flow of float enters next unit
5, sludge treating system:
In system 4 isolated mud flco, the dense media added containing system 3, this partial sludge initially enters mud magnetic
Segregation apparatus reclaims dense media, and the response rate more than 99%, the dense media of recovery is by adding pump circulating to system 3.After de-magnetic
Mud can homologous ray 2 discharge mud, be delivered to pressure filter dehydration and drying by sludge pump, mud cake passes through underground transport system
Outward transport.
6, ultra-filtration system:
Containing the SS of about 10mg/l in system 4 water outlet, for ensureing follow-up comprehensive utilization water quality, system water outlet is again from flowing to
Enter gravity stream accurate filter, go out aqueous suspension and ensure between 3-5mg/l.Accurate filter spoil disposal enters system 5.
7, down-hole reclaiming system:
According to down-hole productive prospecting, down-hole fire-fighting, depositing dust, rinse, backfill, the production link such as oil emulsion water distribution can make
Use substantial amounts of industrial water.Conventional approach is the sewage collected by shaft sump, rises to ground by Central Pump Room, is building
Sewage disposal system and pond, roughing-in, it is transported to down-hole and uses.Huge investment and energy consumption need to be spent.
The present invention uses down-hole direct reuse technique, by multistage frequency conversion constant pressure water supply system, by the water outlet of system 6, root
According to mine demand, it is transported to each setting, meets fire-fighting, depositing dust use.Simultaneously according to oil emulsion water distribution demand and water quality
Situation, if clean water, can direct adapted, if salinity and hardness exceed standard, the most supporting UF+RO system does advanced treating,
Surplus gravity flow after reuse enters next unit.
8, sump drainage system: each mine enterprise, according to safety code and design specification, all can have shaft sump and join
Set Central Pump Room drainage system, the water outlet of present system 7, gravity flow enters sump, by Central Pump Room, is promoted to ground.
9, floor synthetic utilizes system:
What system 8 was emitted into ground is treated clean water, and according to the function distribution that grass work is wide, ground sets
Thribble meets the clear water reserviors of 4 hours storage time according to the water yield, is water source according to this, is available for ground fire demand water, and power plant's cooling follows
Ring water, mill water, it is available for worker's bath water, Office Area reclaimed water etc. after sterilization.Meanwhile, if in system 7 breast
Carburetion water distribution does not possess the condition of realization, can fetch water in pond, ground, builds small-scale terrestrial water desalting plant, with oil emulsion scientific matching
After, by pipeline, static pressure is to each oil setting.Water-deficient area can be according to consumption and water quality, and supporting clean unit is as quoting
Water.Through above-mentioned 9 systems, the sewage produced in production process can be recycled by mine enterprise to greatest extent, and minimizing is taken out
Take underground water source or outsourcing production, domestic water.
10, electric-control system:
Whole set process realizes automatic control, remotely controls, EPA under surge well, also can upload field video signal.?
Grass control room, can omnidistance remote control, monitoring process flow process overall process.
The invention has the beneficial effects as follows: 1. simplify pump selection and maintenance
Shaft sump water is risen to ground by ground treatment strategies, needs to use Pulp pump, as long as down-hole treatment scheme is then
Select clarified water pump, the drainability of equivalent specifications, use clarified water pump can investment reduction 30%--50%, extend maintenance period simultaneously
3--4 times.
2. pipeline abrasion and corrosion are reduced
Coal slime in mine water and float are not only worn and torn pump part, but also heavy wear discharge pipe line, according to investigations,
Under equal conditions, the service life of down-hole treatment scheme drain pipe is 2-3 times of aboveground processing scheme drain pipe service life.Special
It not for acid mine water, after down-hole is neutralized process, rises to ground again, the use of water pump and pipeline can be extended
Life-span more than 5 times.
3. it is easy to utilize nearby
The important utilization ways of reclamation of mine water is for down-hole depositing dust, watering and fire demand water and oil emulsion at present
Preparation water.Use ground treatment strategies time, the cleaning mine water after process needs to return to down-hole, cause pipeline turn back laying,
The reciprocal waste transported also increases equipment operating cost.Clear water can be delivered directly to down-hole water spot by down-hole treatment scheme,
Convenient, efficient, after surplus clear water puts in storage, ground can be promoted to as comprehensive utilization water source.
4. land seizure is reduced
Mine water ground treatment strategies typically constitutes from by bigger land area, with daily handling ability 10000m3Mine water
As a example by treatment plant, from preliminary sedimentation tank to clear water reserviors, need 5 to 6 grades of structures, need land area 5000-8000m2, and Underground Department
Reason scheme, area of plane 300m2?；Use down-hole treatment technique, can be colliery development newly-increased ground production system displacement
Soil.
5. sump dischargeable capacity efficiency is improved.Major part mine is all at downhole designs volume 2000m3Above central water
Storehouse, a large amount of coal slimes in mine water, rock dust etc. quickly precipitate at sump, have impact on dischargeable capacity and suspended substance sedimentation efficiency, and one
As within every 1 to 3 months, will dig clearly once.Down-hole treatment scheme can process swallet, coal slime and float directly, continuously
Separated in time, it is ensured that the maximum dischargeable capacity of central water sump, substantially increased the ability of mine defending flood and water damage.
6. mechanization sump cleaning is realized
It is the hard working of high intensity that shaft sump digs clearly, is limited by down-hole site condition, work occurs in operation the most repeatedly
Hinder accident.And down-hole treatment scheme uses independent sludge treating system to reclaim coal slime, dramatically reduce coal slime heavy in down-hole
Form sediment, greatly reduce heavy physical work, novel mechanical can be used convenient for a small amount of coal slime of deposition in sump at a specified future date
Reclaim.
7. climate change effect it is not afraid of.
Mine water Ground Processing System can be disturbed by worst case meteorological conditions such as severe cold, heavy rain, sand and dust, has a strong impact on place
Reason effect, special for being northern area, need to add a cover, increase the isolation climatic effect of HVAC facility.Down-hole treatment scheme then environment bar
Part is constant, favourable continuous service.
8. clear water gug, it is simple to utilize.
Mine water underground process technique can realize clear water and rise to ground, is equivalent to newly beat water source at a glance in mine
Well, can supply the various uses such as production, fire-fighting, depositing dust, bathing, greening easily.
9. it is easy to process with follow-up water utilize technique to be connected.
Along with the new mining area exploitation of the deep production of Old Eastern mining area and western part, need the mine water of special handling and advanced treating
More and more, the prerequisite of special handling and advanced treatment process is the former water of input cleaning, mine water underground processing scheme
Effluent quality can reach special handling and advanced treatment process water inlet requirement.Major part mine is all built particularly at present
Ground mine sewage treatment plant, after clear water gug, can transform spy as according to follow-up water requirement original Sewage Plant
Different and advanced treating plant stand.The construction space of preciousness is provided for subsequent treatment.
10. coal recovery it is easy to.
Mine water underground processing scheme uses pressure filter to reclaim coal slime, and filter cake moisture, can be direct in down-hole about 40%
Enter transport, promote system, reclaimed coal slime resource the most to greatest extent, and efficiently solved the coal slime that floor treatment is brought
" messy " problem.
Accompanying drawing explanation
Fig. 1 is water sand piece-rate system structural representation.
Fig. 2 is fine particle pretreatment system structural representation.
Fig. 3 is table 7-1 schematic diagram.
Detailed description of the invention
A kind of well work mine water underground purifies and cyclic utilization system, the water sand piece-rate system being sequentially connected with, fine particle
Pretreatment system, strengthens coagulation system, flco speed subsystem, sludge treating system for three grades；
Described water sand piece-rate system includes elevator 1, scrapper conveyor chute 2, collection mud sump 3 and belt-type elevating conveyor 4, promotes
Machine 1, scrapper conveyor chute 2 are separately fixed on the two side of collection mud sump 3, and belt-type elevating conveyor 4 is connected with elevator 1；
Described fine particle pretreatment system includes the three grades of sedimentation tanks being sequentially connected with, and belt-type elevating conveyor 4 is by mine
Water sends into first order sedimentation tank 5, arranges and be provided with stirring diving bottom 6,23 grades of ponds of pneumatic sludge pump in first order sedimentation tank 4
Pulp pump 7, three grades of sedimentation tank deposits, by the sludge treating system of transport pump to rear end, go the mine water after oil removal to lead to
Cross static pipeline mixer and enter one-level stirring pool；
Described three grades of reinforcement coagulation systems be sequentially connected with communicate static pipeline mixer, one-level stirring pool, two grades
Stirring pool and three grades of stirring pools, static pipeline mixer；
Described flco speed subsystem sludge treating system mud magnetic separating device, is connected by multiple rare-earth magnetic discs and forms, from
Three grades of stirring pools mine water out enters mud magnetic separating device, recycles after filter；
Described sludge treating system includes sludge pump and the pressure filter being sequentially connected with.
At Xie Zhuan colliery, the solid colliery of dragon and Fu Cheng colliery three, the actual operating data of down-hole treatment purification water treatment system is divided
Analysis and result of calculation collect sees Fig. 3, and Fig. 3 is shown in data comparative analysis.
As can be seen from Figure 3:
(1) amount of energy saving 0.043-0.047kWh/(t hm before and after underground coal mine treatment and purification water treatment system is implemented), the most often
1t mine water promotes 100m and can economize on electricity 0.043-0.047kWh, average economize on electricity 0.045 kWh/(t hm).
(2) fractional energy savings 8.83%-10.26% before and after underground coal mine treatment and purification water treatment system is implemented, average out to 9.50%.
(3) as follows by the displacement after the project implementation and drain height conversion year amount of electricity saving:
Colliery, the ①Xie village: 0.047kWh/(t hm) × 5465254t × 4.59hm=117.90 ten thousand kWh；
2. the solid colliery of dragon: 0.043kWh/(t hm) × 24019920t × 8.6hm=888.26 ten thousand kWh；
3. Fu Cheng colliery: 0.045kWh/(t hm) × 2117000t × 3.94hm=37.53 ten thousand kWh；
4. add up to: 117.90 ten thousand kWh+888.26 ten thousand kWh+37.53 ten thousand kWh=1043.69 ten thousand kWh.
Claims (3)
1. well work mine water underground purifies and a cyclic utilization system, and the water sand piece-rate system being sequentially connected with, fine particle is pre-
Processing system, strengthens coagulation system, flco speed subsystem, sludge treating system for three grades；
Described water sand piece-rate system includes elevator, scrapper conveyor chute, collection mud sump and belt-type elevating conveyor, elevator, scraper plate
Machine chute is separately fixed on the two side of collection mud sump, and belt-type elevating conveyor is connected with elevator；
Described fine particle pretreatment system includes the three grades of sedimentation tanks being sequentially connected with, mine water after removing sand gravity flow entrance the
First stage precipitation tank, arranges pneumatic sludge pump in first order sedimentation tank, be provided with stirring diving slurry pump bottom two or three grades of ponds, three grades
Sedimentation tank deposit, by the sludge treating system of transport pump to rear end, goes the mine water after oil removal to be mixed by static pipeline
Clutch enters one-level stirring pool；
Described three grades of reinforcement coagulation systems be sequentially connected with communicate static pipeline mixer, one-level stirring pool, two grades of stirrings
Pond and three grades of stirring pools；
Described flco speed subsystem is mud magnetic separating device, multiple rare-earth magnetic discs connect and form, from three grades of stirring pools out
Mine water enter mud magnetic separating device, recycle after filter；
Described sludge treating system includes sludge pump and the pressure filter being sequentially connected with.
A kind of well work mine water underground the most according to claim 1 purifies and cyclic utilization system, it is characterised in that: described
Rare-earth magnetic disc replace with rare-earth Nd-Fe-B permanent magnetic steel, intensity between its Surface field intensity 3500gs adjacent magnetic field
2000gs。
A kind of well work mine water underground the most according to claim 1 purifies and cyclic utilization system, it is characterised in that: also wrap
Include down-hole reclaiming system, sump drainage system and floor synthetic and utilize system.
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| CN105498310A (en) * | 2015-12-31 | 2016-04-20 | 徐州天科机械制造有限公司 | Water non-stop continuous cleaning method and equipment for coal mine underground central water sump |
| CN106219859B (en) * | 2016-08-16 | 2018-03-16 | 中电建水环境治理技术有限公司 | Gush water multistage purification processing system more than polluted bed mud processing in river lake |
| CN108911228A (en) * | 2017-11-15 | 2018-11-30 | 山东融汇环境工程有限公司 | A kind of high suspended matter mine water underground load purification system and technique |
| CN108266224B (en) * | 2018-01-13 | 2023-06-16 | 山东莱芜煤矿机械有限公司 | Underground coal mine sump dredging process and equipment thereof |
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| CN103570179A (en) * | 2013-11-12 | 2014-02-12 | 煤炭工业济南设计研究院有限公司 | Underground mine water treatment system and method |
| CN203545833U (en) * | 2013-11-12 | 2014-04-16 | 煤炭工业济南设计研究院有限公司 | Underground mine water treatment system |
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| CN103570179A (en) * | 2013-11-12 | 2014-02-12 | 煤炭工业济南设计研究院有限公司 | Underground mine water treatment system and method |
| CN203545833U (en) * | 2013-11-12 | 2014-04-16 | 煤炭工业济南设计研究院有限公司 | Underground mine water treatment system |
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Effective date of registration: 20180614 Address after: 271200 B18 four unit, Tai'an new hi tech Zone, Shandong Patentee after: Shandong Environmental Protection Technology Co., Ltd. Address before: 271000 Shicun Road, Sun Village, Xinwen office, Xintai, Tai'an, Shandong, Shilong Road, 62 Patentee before: Zhang Chao |
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Address after: 271200 B18 four unit, Tai'an new hi tech Zone, Shandong Patentee after: China Construction Environmental Energy (Shandong) Environmental Technology Co.,Ltd. Address before: 271200 B18 four unit, Tai'an new hi tech Zone, Shandong Patentee before: SHANDONG HUANNENG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |