CN207468338U - A kind of multi stage precipitation coal-contained wastewater processing system - Google Patents
A kind of multi stage precipitation coal-contained wastewater processing system Download PDFInfo
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- CN207468338U CN207468338U CN201720944490.XU CN201720944490U CN207468338U CN 207468338 U CN207468338 U CN 207468338U CN 201720944490 U CN201720944490 U CN 201720944490U CN 207468338 U CN207468338 U CN 207468338U
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Abstract
The utility model provides a kind of multi stage precipitation coal-contained wastewater processing system, including sequentially connected first stage precipitation tank, second-level settling pond, three-level sedimentation basin, filter, water purifying tank；Water in the first stage precipitation tank enters second-level settling pond by overflow, water in second-level settling pond is imported by sewage pump in three-level sedimentation basin, water in three-level sedimentation basin is entered by water pump in filter, the first stage precipitation tank is also connect with dosing pond, and the second-level settling pond is also connect with wastewater disposal basin.The utility model is integrated by setting three-level sedimentation basin, and by the setting of I and II sedimentation basin through overflow ducts, realizes the two-stage precipitation of the water containing coal, cycling utilization of wastewater in factory is realized after by filtering.Waste water is constantly precipitated by multifeed clarifier, purifies effectively reduction membrane filter inlet wastewater concentration；It is retrofited by membrane filter filter bag, effectively improves coal-contained wastewater device processing capacity, promote water quality qualification rate, really realize the comprehensive treatment of coal-contained wastewater, external " zero " emissions object.
Description
Technical field
The utility model is related to a kind of multi stage precipitation coal-contained wastewater processing systems.
Background technology
Since equipment designs inadequate natural endowment, when processing pond concentration of coal-water is big and coal-contained wastewater system equipment is due to operation
Between long, valve is not closed completely, the blocking of membrane filter strainer, accuracy decline, flowmeter are inaccurate, solenoid valve control circuit therefore
The equipment faults such as barrier, liquid level gauge inaccuracy, lead to that the coal water coal content of storagetank containing coal is excessive, filter bag abrasion addition polymerization, eventually lead to
Heisui River is emitted in coal-contained wastewater system operation, is unsatisfactory for equipment operation, environment protection emission requirement.Due to system treated water quality
Turbidity severely exceeds, it is impossible to realize recycling for flushing water, coal-contained wastewater processing system equipment into a kind of ornaments, is lost substantially
Go its existing value.
In previous research work, feelings once were run to the coal-contained wastewater processing equipment in Hunan, Guizhou Deng Diduojia power plant
Condition is investigated, investigate power plant coal-contained wastewater equipment equally exist run it is unreliable, be substantially at be one ornaments awkward situation.
National environmental protection policies in 2015 and energy-saving and emission-reduction requirement are more and more high, and Qian Dong power plant propose environmentally friendly, equipment management
Become more meticulous requirement, realizes coal-contained wastewater system long period, stable operation, realizes that coal handling system waste water " zero " discharges, saves defeated coal
System water rinses the industrial water consumption consumed, the coal slime in recycling coal water, reduces the integration objectives such as coal yard loss.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of multi stage precipitation coal-contained wastewater processing system.
The utility model is achieved by the following technical programs.
A kind of multi stage precipitation coal-contained wastewater processing system provided by the utility model is precipitated including sequentially connected level-one
Pond, second-level settling pond, three-level sedimentation basin, filter, water purifying tank；Water in the first stage precipitation tank enters two level by overflow and sinks
Shallow lake pond, the water in second-level settling pond are imported by sewage pump in three-level sedimentation basin, and the water in three-level sedimentation basin is entered by water pump
In filter, the first stage precipitation tank is also connect with dosing pond, and the second-level settling pond is also connect with wastewater disposal basin.
The first stage precipitation tank and second-level settling pond are arranged in same pond, first stage precipitation tank and second-level settling pond it
Between separated by low partition wall and high partition wall.
The height of the high partition wall is more than low partition wall, and high partition wall, which is higher by the position of low partition wall, is provided with several spout holes.
It is connected between the first stage precipitation tank and dosing pond by lift pump.
The filter is membrane filter.
Waste water outflow mouth is provided between the dosing pond and wastewater disposal basin.
Height of the height of the waste water outflow mouth less than high partition wall but the height more than low partition wall.
The beneficial effects of the utility model are：One is set as by setting three-level sedimentation basin, and by I and II sedimentation basin
Body realizes the two-stage precipitation of the water containing coal, cycling utilization of wastewater in factory is realized after by filtering by overflow ducts.Pass through multistage
Sedimentation basin constantly precipitates waste water, purifies effectively reduction membrane filter inlet wastewater concentration；Changed by membrane filter filter bag
Type, effectively improves coal-contained wastewater device processing capacity, promotes water quality qualification rate, really realizes the comprehensive treatment, right of coal-contained wastewater
" zero " emissions object outside.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the I and II sedimentation basin structure chart of the utility model；
In figure：1- first stage precipitation tanks, the low partition walls of 11-, 2- second-level settling ponds, 21- high partition walls, 22- spout holes, 3- three-levels are sunk
Shallow lake pond, 4- filters, 5- dosings pond, 6- wastewater disposal basins, 61- waste water outflow mouths, 7- water purifying tanks.
Specific embodiment
Be described further below the technical solution of the utility model, but claimed range be not limited to it is described.
A kind of multi stage precipitation coal-contained wastewater processing system, including sequentially connected first stage precipitation tank 1, second-level settling pond 2, three
Grade sedimentation basin 3, filter 4, water purifying tank 7；Water in the first stage precipitation tank 1 enters second-level settling pond 2 by overflow, and two level is sunk
Water in shallow lake pond 2 is imported by sewage pump in three-level sedimentation basin 3, and the water in three-level sedimentation basin 3 enters filter 4 by water pump
Interior, the first stage precipitation tank 1 is also connect with dosing pond 5, and the second-level settling pond 2 is also connect with wastewater disposal basin 6.
The first stage precipitation tank 1 and second-level settling pond 2 are arranged in same pond, first stage precipitation tank 1 and two-stage precipitation
It is separated between pond 2 by low partition wall 11 and high partition wall 21.
The height of the high partition wall 21 be more than low partition wall 11, high partition wall 21 be higher by the position of low partition wall 11 be provided with it is several
Spout hole 22.
It is connected between the first stage precipitation tank 1 and dosing pond 5 by lift pump.
The filter 4 is membrane filter.
Waste water outflow mouth 61 is provided between the dosing pond 5 and wastewater disposal basin 6.
Height of the height of the waste water outflow mouth 61 less than high partition wall 21 but the height more than low partition wall 11.
Embodiment：Certain power plant treatment tank is transformed by the utility model
1st, infrastructure optimizes
1) existing No. 1 rainwater sedimentation basin of coal yard is utilized, with the two-way step divider wall of C25 armored concrete by No. 1 rainwater
Sedimentation basin carries out the isolation of A, B pond, step isolation wall size：It is 8 meters long, 2.7 meters wide, 1.2 meters high, divider wall setting osculum 8
It is a, practical 1.0 meters of isolation height, 0.15 meter of draining bore dia.0.2 meter of A ponds side step height, 0.3 meter of B ponds side step height.
After isolation, wherein A ponds are as coal-contained wastewater level-one precipitation zone, and B ponds are as coal-contained wastewater two-stage precipitation region.
2) using C25 concrete by No. 1 rainwater sedimentation basin B pond export hole (7.2 meters long, 0.3 meter wide, 0.6 meter high) into
Row blocks, and ensures that B pit levels height is not less than 3.0 meters of liquid levels.
3) coal-contained wastewater storagetank raw wastewater inlet tube (DN200) is excavated to No. 1 rainwater sedimentation basin A ponds entrance raceway groove, it will
Coal transporting trestle carrys out coal-contained wastewater and is introduced to No. 1 rainwater sedimentation basin A pond, and coal-contained wastewater storagetank raw wastewater inlet tube is mixed using C25
Solidifying soil is blocked, channel dimensions：It is 25 meters long, 0.5 meter wide, 2 meters deep, 15 degree of raceway groove angle of inclination.Thickness is used in raceway groove
The C25 concrete of (100mm) carries out bottoming, plastering, raceway groove with C30 reinforced concrete cover plates (0.5 meter of width, 0.8 meter of length,
0.1 meter of thickness) it is covered.
4) #1 rainwater sedimentation basin B ponds overflow ponds to waste water storage slot side partition wall is excavated into overflow ditch, size：5.5 meters, width
It 1 meter, deeply 1.1 meters, makes cover board with C30 armored concrete and carries out caping, thickness 100mm is carried out in ditch touches face.As B ponds coal
Waste water automatic overflow is to coal-contained wastewater storagetank, 2.80 meters of B pit levels when water promotes failure of pump.
5) C25 concrete increases by one of barricade in existing overflow ditch, and barricade size is：It is 2.0 meters long, 0.3 meter wide, high by 3.0
Rice during for extra torrential rain to occur, in the case of coal-contained wastewater unit capacity is ungratified, and is ensureing coal transporting trestle not blowdown
In the case of, externally carry out rainwater automatic overflow.
6) one, dosing pond, size are assembled in rainwater sedimentation basin A ponds side：It is 1 meter long, 1 meter wide, 1 meter high.
2nd, equipment optimization
1) No. 1 rainwater sedimentation basin 1A, 1B coal water is promoted into pump discharge main pipe (DN108) and leads to coal-contained wastewater storagetank, managed
10 meters of road length.
2) pipeline to #1, #2 membrane filter, valve are checked, are handled, and replace #1, #2 membrane filter residual cake valve
(totally 2) and the part valve being not closed completely.
3) backwash water pipe installation is optimized according to design drawing, replaces membrane filter filter bagIt 230, improves
Sewage water filtration effect.
4) draw flushing water into periodically being backwashed to membrane filter in #1#2 membrane filters, former hydrocone type backwash
Device is removed or isolation.
5) it repairs, replace instrument piping.
6) two level, three-level sedimentation basin install ultrasonic level gage additional respectively.
7) it repairs, replace the facilities such as pipeline flowmeter, valve.
8) optimization backwash logic, valve switch logic control program.
3rd, principle optimizes
1) sewage that each transfer station blowdown hole of former coal handling system is collected into directly is pooled to processing pond and transform defeated coal measures as
It is dense that the sewage that each transfer station blowdown hole is collected into of uniting is pooled to coal dust in the water sedimentation of rainwater sedimentation basin progress coal, reduction coal water first
Processing pond is squeezed into rainwater elevator pump after degree, reuses membrane filter processing, so as to reduce the blocking of membrane filter chimney filter
Probability realizes that coal handling system flushing water index meets and uses needs.
2) waterwall is added in rainwater sedimentation basin, realizes natural subsidence and the filtering of coal water.
3) method of operation becomes the regular test run that a waste fitment is carried out per ten days and is set to run coal-contained wastewater processing daily
It is standby；Change originally irregularly added flocculant to add flocculant to rainwater sedimentation basin daily to processing pond, by coal dust precipitation ring in coal water
Section Forward reduces the cleaning coal slime number of processing pond.Per ten days by Dust Concentration becomes larger after 10 days accumulative processing pond
Waste water returns rainwater sedimentation basin by waste water lifting pump and carries out recycling secondary precipitation again.
4) coal-contained wastewater operational management detailed rules and regulations and running optimizatin technical measures are worked out, specify responsibility, regular working and operation
It is required that, it is ensured that coal-contained wastewater long-period stable operation.
5th, optimization operation operating process
1) dosing：Under normal circumstances, add 1-2 bags of flocculant (depending on the number of stormwater tank water) to rainwater sedimentation basin daily,
Processing pond not dosing.
2) cycle is beaten：Beat circulation primary within every ten days.Day shift on the 5/15/25th specially monthly, the Roots for opening processing pond
After wind turbine stirs and make muddy water, start sewage pump and sewage is evacuated to No.1 rainwater precipitation progress reprecipitation.
3) wastewater treatment：During coal-contained wastewater processing, do not start roots blower and carry out bubbling, it is other with former operation operation rule
It is fixed.
4) backwash：When day shift on the 5/15/25th monthly beats cycle, the synchronous flushing work for carrying out membrane filter (is opened
The top water valve of membrane filter is rinsed).Backwash step：Bottom blow-down gate valve and pipe clip valve are opened, is then turned on membrane type
Filter top water valve is rinsed.
5) according to concentration of coal-water, periodic cleaning coal-contained wastewater pond.
Claims (7)
1. a kind of multi stage precipitation coal-contained wastewater processing system, including sequentially connected first stage precipitation tank (1), second-level settling pond (2),
Three-level sedimentation basin (3), filter (4), water purifying tank (7), it is characterised in that：Water in the first stage precipitation tank (1) passes through overflow
Into second-level settling pond (2), the water in second-level settling pond (2) is imported by sewage pump in three-level sedimentation basin (3), three-level sedimentation basin
(3) water in is entered by water pump in filter (4), and the first stage precipitation tank (1) also connect with dosing pond (5), the two level
Sedimentation basin (2) is also connect with wastewater disposal basin (6).
2. multi stage precipitation coal-contained wastewater processing system as described in claim 1, it is characterised in that：The first stage precipitation tank (1)
It is arranged in same pond with second-level settling pond (2), passes through low partition wall between first stage precipitation tank (1) and second-level settling pond (2)
(11) it is separated with high partition wall (21).
3. multi stage precipitation coal-contained wastewater processing system as claimed in claim 2, it is characterised in that：The height of the high partition wall (21)
Degree is more than low partition wall (11), and high partition wall (21) is higher by the position of low partition wall (11) and is provided with several spout holes (22).
4. multi stage precipitation coal-contained wastewater processing system as described in claim 1, it is characterised in that：The first stage precipitation tank (1)
It is connected between dosing pond (5) by lift pump.
5. multi stage precipitation coal-contained wastewater processing system as described in claim 1, it is characterised in that：The filter (4) is film
Formula filter.
6. multi stage precipitation coal-contained wastewater processing system as described in claim 1, it is characterised in that：The dosing pond (5) and useless
Waste water outflow mouth (61) is provided between pond (6).
7. multi stage precipitation coal-contained wastewater processing system as described in claim 1, it is characterised in that：The waste water outflow mouth (61)
Height less than high partition wall (21) height but more than low partition wall (11) height.
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| CN201720944490.XU CN207468338U (en) | 2017-07-31 | 2017-07-31 | A kind of multi stage precipitation coal-contained wastewater processing system |
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| CN201720944490.XU CN207468338U (en) | 2017-07-31 | 2017-07-31 | A kind of multi stage precipitation coal-contained wastewater processing system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658307A (en) * | 2018-06-30 | 2018-10-16 | 神华国华广投（柳州）发电有限责任公司 | A kind of processing method of coal-contained wastewater |
| CN109293044A (en) * | 2018-10-08 | 2019-02-01 | 国电常州发电有限公司 | Defeated coal coal-contained wastewater processing transformation device |
| CN109502813A (en) * | 2018-12-09 | 2019-03-22 | 湖南涌鑫源环保有限公司 | A kind of processing of cathode carbon pieces waste water and recyclable device |
| CN110180256A (en) * | 2019-05-10 | 2019-08-30 | 华电电力科学研究院有限公司 | A kind of coal water sedimentation pond of automatic collection coal slime and its working method |
| CN114956371A (en) * | 2022-05-06 | 2022-08-30 | 华电水务工程有限公司 | Coal-containing wastewater treatment system and process |
-
2017
- 2017-07-31 CN CN201720944490.XU patent/CN207468338U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108658307A (en) * | 2018-06-30 | 2018-10-16 | 神华国华广投（柳州）发电有限责任公司 | A kind of processing method of coal-contained wastewater |
| CN109293044A (en) * | 2018-10-08 | 2019-02-01 | 国电常州发电有限公司 | Defeated coal coal-contained wastewater processing transformation device |
| CN109502813A (en) * | 2018-12-09 | 2019-03-22 | 湖南涌鑫源环保有限公司 | A kind of processing of cathode carbon pieces waste water and recyclable device |
| CN110180256A (en) * | 2019-05-10 | 2019-08-30 | 华电电力科学研究院有限公司 | A kind of coal water sedimentation pond of automatic collection coal slime and its working method |
| CN114956371A (en) * | 2022-05-06 | 2022-08-30 | 华电水务工程有限公司 | Coal-containing wastewater treatment system and process |
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