CN110115873A - A kind of coal-contained wastewater processing system and coal-contained wastewater treatment process - Google Patents
A kind of coal-contained wastewater processing system and coal-contained wastewater treatment process Download PDFInfo
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- CN110115873A CN110115873A CN201910325704.9A CN201910325704A CN110115873A CN 110115873 A CN110115873 A CN 110115873A CN 201910325704 A CN201910325704 A CN 201910325704A CN 110115873 A CN110115873 A CN 110115873A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 53
- 238000012545 processing Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 title claims abstract description 17
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 296
- 239000003245 coal Substances 0.000 claims abstract description 213
- 238000011084 recovery Methods 0.000 claims abstract description 101
- 238000004062 sedimentation Methods 0.000 claims abstract description 83
- 238000010992 reflux Methods 0.000 claims description 76
- 238000003756 stirring Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 2
- 241000255777 Lepidoptera Species 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 9
- 238000000151 deposition Methods 0.000 description 9
- 239000006228 supernatant Substances 0.000 description 9
- 230000008021 deposition Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000012797 qualification Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004069 wastewater sedimentation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a kind of coal-contained wastewater processing systems and coal-contained wastewater treatment process.Filter device in the present invention includes intermediate pool, No.1 filter, No. two filters, No.1 middle water pump, No. two middle water pumps, No.1 filter pipe, No. two filter pipes, No. three filter pipes, No. four filter pipes and No. five filter pipes；Coal water sedimentation device is connected to intermediate pool, one end of No.1 filter pipe and one end of No. two filter pipes are respectively positioned in intermediate pool, one end of No. three filter pipes and one end of No. four filter pipes are connected to No.1 filter and No. two filters respectively, the other end of No.1 filter pipe, the other end of No. two filter pipes, the other end of No. three filter pipes and the other end of No. four filter pipes are connected to No. five filter pipes, No.1 middle water pump and No. two middle water pumps are separately mounted on No.1 filter pipe and No. two filter pipes, No.1 filter and No. two filters are connected to clean water recovery device.
Description
Technical field
The present invention relates to a kind of coal-contained wastewater processing systems and coal-contained wastewater treatment process, belong to the mating of thermal power plant
Facility field.
Background technique
Conventional coal-contained wastewater treatment process is as follows:
Coal-contained wastewater → coal water collecting pit (coal yard periphery) → coal water delivery pump → coal-contained wastewater sedimentation basin → middle water pump (supernatant
Liquid) → filter (dosing) → clear water reserviors → fresh water pump → processing qualification waste water recycling to coal yard (as shown in Figure 1).
Coal-contained wastewater boosting after the collection of level-one coal water collecting pit is delivered to coal water sedimentation pond, coal water sedimentation pool volume compared with
Greatly, the residence time is long, therefore coal slime deposits in sedimentation basin, and supernatant, which is boosted, to be delivered to coal-contained wastewater processing unit and further locate
Reason, reuse after processing is qualified.Coal slime in coal water sedimentation pond sends coal yard back to after coal slime is caught.
Conventional coal-contained wastewater processing system there are the problem of mainly have:
1) coal slime is easy to deposit in coal water collecting pit, needs regular manual cleaning, and such as cleaning not in time, will lead to a whole set of useless containing coal
Water treatment system is stopped transport；
2) coal water sedimentation pond is generally rectangular cross-section, pond of underground type, and there are dead angles for coal slime deposition, because grab bucket track is fixed, so
Need regular manual cleaning；
3) coal water sedimentation pool volume is larger, and coal water water inlet not water distribution causes coal slime deposition uneven, the biggish coal slime ratio of partial size
It is easier to be deposited near the pool wall at water, grab bucket can not clear up；
4) supernatant water quality is unstable, and when flow of inlet water is smaller, supernatant water quality is slightly good.When flow of inlet water is larger, supernatant water
Matter is poor, causes subsequent filter operation troubles rate high；
5) supernatant instability of flow needs agent-feeding treatment Ru subsequent, then dosage is adjusted very frequent, leads to medicine system event
Barrier rate is high；
6) when clearing up coal slime because of grab bucket, coal slime and coal water are not separated, are caused the coal slime moisture content cleaned out very high, need to be accumulated one
Reuse after the section time；
7) manual cleaning will lead to entire coal water sedimentation pond not in time and lose precipitating function, cause coal-contained wastewater processing system frequent
It stops transport.
It unloads coal extensively in view of this, disclosing coal-burning power plant's hardening in the patent document application No. is 201310597414.2
There is the disadvantages of investment is high and human cost is high in the coal water collection system of Ground, above-mentioned documents.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of reasonable in design
Coal-contained wastewater processing system and coal-contained wastewater treatment process.
Technical solution used by the present invention solves the above problems is: the coal-contained wastewater processing system, including coal water are collected
Device, coal water sedimentation device, filter device and clean water recovery device, the coal water collecting device are connected to coal water sedimentation device,
The coal water sedimentation device is connected to filter device, and the filter device is connected to clean water recovery device, and design feature is:
The filter device includes intermediate pool, No.1 filter, No. two filters, No.1 middle water pump, No. two middle water pumps, No.1s
Filter pipe, No. two filter pipes, No. three filter pipes, No. four filter pipes and No. five filter pipes；The coal water sedimentation dress
It sets and is connected to intermediate pool, one end of the No.1 filter pipe and one end of No. two filter pipes are respectively positioned in intermediate pool,
One end of No. three filter pipes and one end of No. four filter pipes are connected to No.1 filter and No. two filters respectively, institute
State the other end and No. four screen pipes of the other end of No.1 filter pipe, the other end of No. two filter pipes, No. three filter pipes
The other end in road is connected to No. five filter pipes, and the No.1 middle water pump and No. two middle water pumps are separately mounted to No.1 mistake
On chimney filter road and No. two filter pipes, the No.1 filter and No. two filters are connected to clean water recovery device.
Further, the coal water sedimentation device includes coal water sedimentation pond, coal slime storehouse, stirring rod, paddle, stirring electricity
Machine, scraper plate, screw conveyor and overflow pipe；The coal water collecting device is connected to the top in coal water sedimentation pond, the coal water
The top of sedimentation basin is connected to intermediate pool by overflow pipe, and the coal slime storehouse is mounted on the bottom in coal water sedimentation pond, described
One end of stirring rod is connect with paddle, and the other end of the stirring rod is connect with stirring motor, and the paddle is located at coal slime
In storehouse, the screw conveyor is connected to coal slime storehouse, and the scraper plate is mounted in coal water sedimentation pond.
Further, the stirring motor is mounted on the top in coal water sedimentation pond, and the paddle is located at screw conveyor
Top.
Further, the top in coal water sedimentation pond is column type structure, and the lower part in coal water sedimentation pond is cone bucket
Formula structure.
Further, the coal water collecting device includes coal water collecting pit, coal water supplying pipe road, liquidometer, main pipe, branch
Pipe, No.1 reflux line, No. two reflux lines, No. three reflux lines, No. four reflux line pipelines, No. five reflux lines, No.1s
Delivery pump, No. two delivery pumps, No.1 butterfly valve and No. two butterfly valves；Coal water supplying pipe road is connected to coal water collecting pit, the liquid
Position meter is mounted on coal water collecting pit, and one end of the main pipe, one end of No.1 reflux line and No. two reflux lines is respectively positioned on
In coal water collecting pit, the branch pipe is vertically mounted in main pipe, the other end of the No.1 reflux line and No. two reflux lines
The other end be connected to No. three reflux lines, the both ends of No. three reflux lines respectively with No. four reflux line pipelines one
End is connected to one end of No. five reflux lines, and the other end of No. four reflux line pipelines is connected to main pipe, and described No. five are returned
The other end in flow tube road is connected to the top in coal water sedimentation pond, and the No.1 delivery pump and No. two delivery pumps are separately mounted to No.1
On reflux line and No. two reflux lines, the No.1 butterfly valve and No. two butterfly valves are separately mounted to No. four reflux line pipelines and five
On number reflux line.
Further, multiple through-holes are provided on the branch pipe, it is the multiple by uniform along the length direction of branch pipe
Arrangement.
Further, the clean water recovery device includes clear water recovery pond, No.1 clear water recovery channel, No. two clear water recycling
Pipeline, No. three clear water recovery channels, No. four clear water recovery channels, No. five clear water recovery channels, No. six clear water recovery channels, No.1s
Clear water recovery pump and No. two clear water recovery pumps；One end of the No.1 clear water recovery channel and one end of No. two clear water recovery channels
It is connected to respectively with No.1 filter and No. two filters, the other end of the No.1 clear water recovery channel and No. two clear water return
The other end in closed tube road is connected to No. three clear water recovery channels, and No. three clear water recovery channels are connected to clear water recovery pond,
One end of No. four clear water recovery channels and one end of No. five clear water recovery channels are respectively positioned in clear water recovery pond, and described No. four
The other end of the other end of clear water recovery channel and No. five clear water recovery channels is connected to No. six clear water recovery channels, and described one
Number clear water recovery pump and No. two clear water recovery pumps are separately mounted on No. four clear water recovery channels and No. five clear water recovery channels.
Further, coal slime grab bucket is provided with above coal water sedimentation pond.
Further, overflow weir is installed in coal water sedimentation pond.
Further, another technical purpose of the invention is to provide a kind of coal-contained wastewater of coal-contained wastewater processing system
Treatment process.
Above-mentioned technical purpose of the invention technical scheme is that.
A kind of coal-contained wastewater treatment process of coal-contained wastewater processing system, it is characterized in that: the coal-contained wastewater handles work
Skill is as follows:
(1) start No.1 delivery pump when liquid level reaches high liquid level limit in coal water collecting pit；
No.1 butterfly valve on (2) No. four reflux line pipelines is opened, and No. two butterfly valves on No. five reflux lines are closed, and carries out minute
Return stirring, until bottom of pond deposits all in coal water collecting pit are stirred；
(3) the No.1 butterfly valve on No. four reflux line pipelines is closed, No. two butterfly valves on No. five reflux lines is opened, coal water is received
The boosting of coal water is delivered to coal water sedimentation pond in collection pond；
(4) stop No. two delivery pumps when liquid level reaches low liquid level limit in coal water sedimentation pond.
Compared with prior art, the invention has the following advantages that the coal-contained wastewater processing system and coal-contained wastewater treatment process,
No coal slime deposition does not need that manual cleaning, generated coal slime moisture content is low, can not set coal slime grab bucket using gravity spoil disposal,
The advantages that producing water water quality is stablized, unattended, failure rate is low, adaptable to water fluctuation.It can change coal-contained wastewater processing
The higher status of system ordinary failures rate substantially reduces the failure rate and cost of labor of coal-contained wastewater processing system.
It is heavy to solve conventional coal-contained wastewater processing system coal water for the coal-contained wastewater processing system and coal-contained wastewater treatment process
Shallow lake pond coal slime siltation problem, coal water sedimentation pond automatic mud removing problem, effluent quality instability problem, flow of inlet water instability problem
With frequent manual cleaning problem etc..Wherein coal water collecting pit and can with the ground type circle coal water sedimentation pond of automatic mud removing, combine
At a set of coal-contained wastewater treatment process, the operational defect of conventional coal-contained wastewater processing system can be effectively avoided.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of coal-contained wastewater processing system in the prior art.
Fig. 2 is the structural schematic diagram of the coal-contained wastewater processing system of the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of the coal water collecting device of the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of the coal water sedimentation device of the embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the filter device of the embodiment of the present invention.
Fig. 6 is the structural schematic diagram of the clean water recovery device of the embodiment of the present invention.
In figure: coal water collecting device 1, coal water sedimentation device 2, filter device 3, clean water recovery device 4,
Coal water collecting pit 11, coal water supplying pipe road 12, liquidometer 13, main pipe 14, branch pipe 15, No.1 reflux line 16, two times
The reflux line pipeline 19, five of reflux line 18, four reflux line 110 of flow tube road 17, three, No.1 delivery pump 111, two
Delivery pump 112,113, No. two butterfly valves 114 of No.1 butterfly valve,
Coal water sedimentation pond 21, stirring rod 23, paddle 24, stirring motor 25, scraper plate 26, screw conveyor 27, is overflow at coal slime storehouse 22
Flow tube road 28, coal slime grab bucket 28, overflow weir 29,
Intermediate pool 31,32, No. two filters 33 of No.1 filter, No.1 middle water pump 34, No. two middle water pumps 35, No.1 mistakes
39, No. five filter pipes 310 of the filter pipe of filter pipe 38, four of filter pipe 37, three of chimney filter road 36, two,
Clear water recovery pond 41, the clear water recovery channel 44, four of clear water recovery channel 43, three of No.1 clear water recovery channel 42, two
Number the clear water recovery channel 46, six of clear water recovery channel 45, five clear water recovery channel 47, No.1 clear water recovery pump 48, two
Clear water recovery pump 49.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
Referring to fig. 2 to shown in Fig. 5, it should however be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc. are only used
To cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can
The qualifications of implementation, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
In the range of art content can cover.Meanwhile if in this specification with reference as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Coal-contained wastewater processing system in the present embodiment, including coal water collecting device 1, coal water sedimentation device 2, filter device
3 and clean water recovery device 4, coal water collecting device 1 be connected to coal water sedimentation device 2, coal water sedimentation device 2 and filter device 3 connect
Logical, filter device 3 is connected to clean water recovery device 4.
Coal water sedimentation device 2 in the present embodiment include coal water sedimentation pond 21, coal slime storehouse 22, stirring rod 23, paddle 24,
Stirring motor 25, scraper plate 26, screw conveyor 27 and overflow pipe 28；The top in coal water sedimentation pond 21 is provided with coal slime grab bucket
28, overflow weir 29 is installed, the top in coal water sedimentation pond 21 is column type structure, coal water sedimentation pond 21 in coal water sedimentation pond 21
Lower part is cone bucket formula structure, and coal water collecting device 1 is connected to the top in coal water sedimentation pond 21, the top in coal water sedimentation pond 21 and mistake
Filter device 3 is connected to by overflow pipe 28, and coal slime storehouse 22 is mounted on the bottom in coal water sedimentation pond 21, one end of stirring rod 23 with stir
The connection of leaf 24 is mixed, the other end of stirring rod 23 is connect with stirring motor 25, and stirring motor 25 is mounted on the top in coal water sedimentation pond 21
Portion, paddle 24 are located at the top of screw conveyor 27, and paddle 24 is located in coal slime storehouse 22, screw conveyor 27 and coal slime storehouse
22 connections, scraper plate 26 are mounted in coal water sedimentation pond 21.
Coal water collecting device 1 in the present embodiment includes coal water collecting pit 11, coal water supplying pipe road 12, liquidometer 13, mother
Pipe 14, branch pipe 15,18, No. four reflux line pipelines 19 of the reflux line of reflux line 17, three of No.1 reflux line 16, two,
No. five reflux lines 110,111, No. two delivery pumps 112 of No.1 delivery pump, No.1 butterfly valve 113 and No. two butterfly valves 114；The supply of coal water
Pipeline 12 is connected to coal water collecting pit 11, liquidometer 13 is mounted on coal water collecting pit 11, main pipe 14, No.1 reflux line 16
One end and one end of No. two reflux lines 17 are respectively positioned in coal water collecting pit 11, and branch pipe 15 is vertically mounted in main pipe 14, branch pipe
Multiple through-holes are provided on 15, to guarantee that multiple through-holes, multiple length by along branch pipe 15 need to be arranged in mixing effect, branch pipe
Direction is evenly arranged, the other end of the other end of No.1 reflux line 16 and No. two reflux lines 17 with No. three reflux lines 18
Connection, the both ends of No. three reflux lines 18 respectively with one end of No. four reflux line pipelines 19 and No. five reflux lines 110 one
End connection, the other end of No. four reflux line pipelines 19 are connected to main pipe 14, and the other end and coal water of No. five reflux lines 110 are heavy
The top in shallow lake pond 21 is connected to, and No.1 delivery pump 111 and No. two delivery pumps 112 are separately mounted to No.1 reflux line 16 and No. two times
On flow tube road 17, No.1 butterfly valve 113 and No. two butterfly valves 114 are separately mounted to No. four reflux line pipelines 19 and No. five reflux lines
On 110.
Filter device 3 in the present embodiment is including in intermediate pool 31,32, No. two filters 33 of No.1 filter, No.1
Between 34, No. two middle water pumps 35 of water pump, the filter pipe 37, three filter pipe 38, four of No.1 filter pipe 36, two filtering
Pipeline 39 and No. five filter pipes 310；The top in coal water sedimentation pond 21 is connected to intermediate pool 31 by overflow pipe 28, No.1
One end of filter pipe 36 and one end of No. two filter pipes 37 are respectively positioned in intermediate pool 31, one end of No. three filter pipes 38
Be connected to respectively with No.1 filter 32 and No. two filters 33 with one end of No. four filter pipes 39, No.1 filter pipe 36 it is another
One end, the other end of No. two filter pipes 37, the other end of the other end of No. three filter pipes 38 and No. four filter pipes 39 are equal
It is connected to No. five filter pipes 310, No.1 middle water pump 34 and No. two middle water pumps 35 are separately mounted to No.1 filter pipe 36
On No. two filter pipes 37.
Clean water recovery device 4 in the present embodiment includes 42, No. two clear water recovery pond 41, No.1 clear water recovery channel clear water
The clear water of clear water recovery channel 46, six of clear water recovery channel 45, five of clear water recovery channel 44, four of recovery channel 43, three
Recovery channel 47, No.1 clear water recovery pump 48 and No. two clear water recovery pumps 49；One end of No.1 clear water recovery channel 42 and No. two
One end of clear water recovery channel 43 is connected to No.1 filter 32 and No. two filters 33 respectively, No.1 clear water recovery channel 42
The other end of the other end and No. two clear water recovery channels 43 is connected to No. three clear water recovery channels 44, No. three clear water recovery channels
44 are connected to clear water recovery pond 41, and one end of No. four clear water recovery channels 45 and one end of No. five clear water recovery channels 46 are respectively positioned on
In clear water recovery pond 41, the other end of the other ends of No. four clear water recovery channels 45 and No. five clear water recovery channels 46 with No. six
Clear water recovery channel 47 is connected to, and No.1 clear water recovery pump 48 and No. two clear water recovery pumps 49 are separately mounted to No. four clear water recovery tubes
On road 45 and No. five clear water recovery channels 46.
The coal-contained wastewater treatment process of coal-contained wastewater processing system in the present embodiment is as follows:
(1) start No.1 delivery pump 111 when liquid level reaches high liquid level limit in coal water collecting pit 11；
No.1 butterfly valve 113 on (2) No. four reflux line pipelines 19 is opened, and No. two butterfly valves 114 on No. five reflux lines 110 close
It closes, 2 minutes return stirrings is carried out, until bottom of pond deposits all in coal water collecting pit 11 are stirred；
(3) the No.1 butterfly valve 113 on No. four reflux line pipelines 19 is closed, No. two butterfly valves on No. five reflux lines 110 are opened
114, coal water boosting in coal water collecting pit 11 is delivered to coal water sedimentation pond 21；
(4) stop No. two delivery pumps 112 when liquid level reaches low liquid level limit in coal water sedimentation pond 21.
The coal-contained wastewater processing technological flow of above-mentioned coal-contained wastewater processing system is as follows:
The coal water collecting pit 11(coal yard periphery that coal-contained wastewater → prevent coal slime deposits) → No.1 delivery pump 111 and No. two delivery pumps
The ground type of 112 → automatic mud removing circular coal water sedimentation pond 21 → intermediate pool, 31 → No.1 middle water pump 34 and No. two centres
Water pump 35(supernatant) → No.1 filter 32 and No. two filter 33(dosings) recycling of → clear water recovery pond 41 → No.1 clear water
Pump 48 and No. two clear water recovery pumps 49 → processing qualification waste water recycling to coal yard.
1) the coal water collecting pit 11 for preventing coal slime from depositing:
By newly-increased 18, No. four reflux line pipelines 19 of the reflux line 17, three of No.1 reflux line 16, two reflux line,
No. five reflux lines 110, No.1 butterfly valve 113 and No. two butterfly valves 114, realize being sufficiently stirred for coal water collecting pit 11, it is therefore prevented that
Coal slime deposits in coal water collecting pit 11, preferably guarantees the normal operation of coal-contained wastewater processing system.
2) ground type of automatic mud removing circular coal water sedimentation pond 21:
The top in coal water sedimentation pond 21 is round pool, and lower half portion cone bucket formula, bottom sets coal slime storehouse 22, in coal water sedimentation pond 21
Scraper plate 26 is arranged in portion, and screw conveyor 27 is arranged in bottom, and the volume in coal water sedimentation pond 21 need to guarantee that coal water retention time is small 12
When more than, to guarantee the water stabilization of supernatant.
The characteristics of ground type of automatic mud removing circular coal water sedimentation pond 21:
(1) it intakes among coal water sedimentation pond 21, guarantees that Equalsettlement, inlet go deep under the liquid level of pond to greatest extent, maximum limit
Degree reduces influence of the water inlet to supernatant.
(2) the coal slime storehouse 22 of semi-underground type is set, and mud level meter and bottom scraper plate 26 are set, realizes automatic mud removing, and protect
The piling height of coal slime is demonstrate,proved, the bottom coal slime moisture content in coal water sedimentation pond 21 is very low, facilitates discharge.
(3) setting row coal slime mouth is higher by liquid level in pond, guarantees that water is not discharged with coal slime.
(4) coal slime cannot all be discharged, and certain coal slime height in coal water sedimentation pond 21 need to be kept, to guarantee bottommost coal slime
Lower moisture content.
(5) the structure design in coal water sedimentation pond 21 ensure that coal slime precipitating without dead angle, and coal slime is all scraped the bottom of to by scraper plate 26
The coal slime storehouse 22 in portion deposits, and is not necessarily to regular manual cleaning.
Following case is to be realized by above-mentioned coal-contained wastewater processing system with coal-contained wastewater treatment process.
Case 1:
The coal-contained wastewater processing system technique of Shandong power plant is as follows:
Coal-contained wastewater → coal water collecting pit → coal water sedimentation pond → electric flocculation device → bis- medium filters → reuse clear water reserviors
Water spot is used in → coal system flush and sprinkling.Manual cleaning is needed due to grab bucket can not clear up coal slime because of coal water sedimentation pond for a long time, manually
Cleaning difficulty is big, the period is long, causes coal-contained wastewater processing system often in stoppage in transit state, coal-contained wastewater flooded conditions are tighter
Weight.
After coal-contained wastewater processing system and the transformation of coal-contained wastewater treatment process, a ground type coal water sedimentation pond is created
The collecting pit for preventing coal slime from depositing with one, effective solution coal water collecting pit coal slime deposition problems, realizes coal water sedimentation
Pond automatic mud removing, unattended, stable effluent quality, etc. strong to flow and variation water quality adaptation, ensure that Subsequent electronic flocculates
The stable operation of device has achieved the purpose that saving manpower, without coal water overflow.
Case 2:
The coal-contained wastewater processing system technique of Henan thermal power plant fuel system is as follows:
Coal-contained wastewater → coal water collecting pit → coal water sedimentation pond → efficient (eddy flow) sewage purification device → clear water reserviors → fresh water pump →
Water spot is used in coal system flush and sprinkling.Because coal water collecting pit coal slime deposition velocity is very fast, clear up not in time, and coal-contained wastewater flow
Fluctuation is very big, causes subsequent medicine system failure rate very high, and coal-contained wastewater processing system effluent quality fluctuates larger, equipment
Backwash water is very big, is unable to reach the purpose of reuse after coal water process qualification.
After coal-contained wastewater processing system and the transformation of coal-contained wastewater treatment process, a ground type coal water sedimentation pond is created
The collecting pit for preventing coal slime from depositing with one, effective solution coal water collecting pit coal slime deposition problems, realizes coal water sedimentation
Pond automatic mud removing, unattended, stable effluent quality, the stabilization of equipment performance for substantially increasing medicine system and filter.Coal water
Flow of inlet water fluctuation it is smaller when, coal water sedimentation pond effluent quality is very good, can not have to subsequent processing direct reuse, realize compared with
High environmental benefit.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (10)
1. a kind of coal-contained wastewater processing system, including coal water collecting device (1), coal water sedimentation device (2), filter device (3) and
Clean water recovery device (4), the coal water collecting device (1) are connected to coal water sedimentation device (2), the coal water sedimentation device (2)
It is connected to filter device (3), the filter device (3) is connected to clean water recovery device (4), it is characterised in that: the filtering dress
Setting (3) includes intermediate pool (31), No.1 filter (32), No. two filters (33), No.1 middle water pump (34), No. two centres
Water pump (35), No.1 filter pipe (36), No. two filter pipes (37), No. three filter pipes (38), No. four filter pipes (39)
With No. five filter pipes (310)；The coal water sedimentation device (2) is connected to intermediate pool (31), the No.1 filter pipe
(36) one end of one end and No. two filter pipes (37) is respectively positioned in intermediate pool (31), No. three filter pipes (38)
One end and one end of No. four filter pipes (39) are connected to No.1 filter (32) and No. two filters (33) respectively, the No.1
The other end of filter pipe (36), the other end of No. two filter pipes (37), the other end of No. three filter pipes (38) and No. four
The other end of filter pipe (39) is connected to No. five filter pipes (310), the No.1 middle water pump (34) and No. two centres
Water pump (35) is separately mounted on No.1 filter pipe (36) and No. two filter pipes (37), the No.1 filter (32) and two
Number filter (33) is connected to clean water recovery device (4).
2. coal-contained wastewater processing system according to claim 1, it is characterised in that: the coal water sedimentation device (2) includes
Coal water sedimentation pond (21), coal slime storehouse (22), stirring rod (23), paddle (24), stirring motor (25), scraper plate (26), spiral transferring
Send machine (27) and overflow pipe (28)；The coal water collecting device (1) is connected to the top in coal water sedimentation pond (21), the coal water
The top of sedimentation basin (21) is connected to intermediate pool (31) by overflow pipe (28), and it is heavy that the coal slime storehouse (22) is mounted on coal water
One end of the bottom in shallow lake pond (21), the stirring rod (23) is connect with paddle (24), the other end of the stirring rod (23) with
Stirring motor (25) connection, the paddle (24) are located in coal slime storehouse (22), the screw conveyor (27) and coal slime storehouse
(22) it is connected to, the scraper plate (26) is mounted in coal water sedimentation pond (21).
3. coal-contained wastewater processing system according to claim 2, it is characterised in that: the stirring motor (25) is mounted on coal
The top in water sedimentation pond (21), the paddle (24) are located at the top of screw conveyor (27).
4. coal-contained wastewater processing system according to claim 2, it is characterised in that: the top in coal water sedimentation pond (21)
For column type structure, the lower part in coal water sedimentation pond (21) is cone bucket formula structure.
5. coal-contained wastewater processing system according to claim 1, it is characterised in that: the coal water collecting device (1) includes
Coal water collecting pit (11), coal water supplying pipe road (12), liquidometer (13), main pipe (14), branch pipe (15), No.1 reflux line
(16), No. two reflux lines (17), No. three reflux lines (18), No. four reflux line pipelines (19), No. five reflux lines
(110), No.1 delivery pump (111), No. two delivery pumps (112), No.1 butterfly valve (113) and No. two butterfly valves (114)；The coal water supplies
It is connected to pipeline (12) with coal water collecting pit (11), the liquidometer (13) is mounted on coal water collecting pit (11), the main pipe
(14), one end of No.1 reflux line (16) and one end of No. two reflux lines (17) are respectively positioned in coal water collecting pit (11), institute
It states branch pipe (15) to be vertically mounted on main pipe (14), the other end of the No.1 reflux line (16) and No. two reflux lines (17)
The other end be connected to No. three reflux lines (18), the both ends of No. three reflux lines (18) respectively with No. four reflux lines
One end of pipeline (19) is connected to one end of No. five reflux lines (110), the other end of No. four reflux line pipelines (19)
It being connected to main pipe (14), the other end of No. five reflux lines (110) is connected to the top in coal water sedimentation pond (21), and described one
Number delivery pump (111) and No. two delivery pumps (112) are separately mounted on No.1 reflux line (16) and No. two reflux lines (17),
The No.1 butterfly valve (113) and No. two butterfly valves (114) are separately mounted to No. four reflux line pipelines (19) and No. five reflux lines
(110) on.
6. coal-contained wastewater processing system according to claim 5, it is characterised in that: be provided on the branch pipe (15) multiple
Through-hole, the multiple length direction by along branch pipe (15) are evenly arranged.
7. coal-contained wastewater processing system according to claim 1, it is characterised in that: the clean water recovery device (4) includes
Clear water recovery pond (41), No.1 clear water recovery channel (42), No. two clear water recovery channels (43), No. three clear water recovery channels
(44), No. four clear water recovery channels (45), No. five clear water recovery channels (46), No. six clear water recovery channels (47), No.1 clear water
Recovery pump (48) and No. two clear water recovery pumps (49)；One end of the No.1 clear water recovery channel (42) and No. two clear water recovery tubes
The one end in road (43) is connected to No.1 filter (32) and No. two filters (33) respectively, the No.1 clear water recovery channel
(42) other end of the other end and No. two clear water recovery channels (43) is connected to No. three clear water recovery channels (44), and described three
Number clear water recovery channel (44) is connected to clear water recovery pond (41), one end of No. four clear water recovery channels (45) and No. five it is clear
One end of water recovery channel (46) is respectively positioned in clear water recovery pond (41), the other end of No. four clear water recovery channels (45) and
The other end of No. five clear water recovery channels (46) is connected to No. six clear water recovery channels (47), the No.1 clear water recovery pump
(48) and No. two clear water recovery pumps (49) are separately mounted to No. four clear water recovery channels (45) and No. five clear water recovery channels (46)
On.
8. coal-contained wastewater processing system according to claim 1, it is characterised in that: the top in coal water sedimentation pond (21)
It is provided with coal slime grab bucket (28).
9. coal-contained wastewater processing system according to claim 1, it is characterised in that: installation in coal water sedimentation pond (21)
There are overflow weir (29).
10. a kind of coal-contained wastewater processing based on coal-contained wastewater processing system described in any claim in claim 1-9
Technique, it is characterised in that: the coal-contained wastewater treatment process is as follows:
(1) start No.1 delivery pump (111) when coal water collecting pit (11) interior liquid level reaches high liquid level limit；
No.1 butterfly valve (113) on (2) No. four reflux line pipelines (19) is opened, No. two butterflies on No. five reflux lines (110)
Valve (114) is closed, and 2 minutes return stirrings is carried out, until bottom of pond deposits all in coal water collecting pit (11) are stirred；
(3) the No.1 butterfly valve (113) on No. four reflux line pipelines (19) is closed, two on No. five reflux lines (110) are opened
The interior coal water boosting of coal water collecting pit (11) is delivered to coal water sedimentation pond (21) by number butterfly valve (114)；
(4) stop No. two delivery pumps (112) when coal water sedimentation pond (21) interior liquid level reaches low liquid level limit.
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Application publication date: 20190813 |