CN110117091A - A kind of coal water collection system and coal-contained wastewater treatment process preventing coal slime precipitating - Google Patents
A kind of coal water collection system and coal-contained wastewater treatment process preventing coal slime precipitating Download PDFInfo
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- CN110117091A CN110117091A CN201910325328.3A CN201910325328A CN110117091A CN 110117091 A CN110117091 A CN 110117091A CN 201910325328 A CN201910325328 A CN 201910325328A CN 110117091 A CN110117091 A CN 110117091A
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- coal
- coal water
- reflux
- slime
- reflux lines
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The present invention relates to a kind of coal water collection system for preventing coal slime from precipitating and coal-contained wastewater treatment process.Liquidometer in the present invention is mounted on coal water collecting pit, coal-contained wastewater service is connected to coal water collecting pit, main pipe is located in coal water collecting pit, one end of branch pipe is connected to main pipe, boring cover is mounted on the other end of branch pipe, through-hole is arranged on branch pipe, one end of No.1 reflux line and one end of No. two reflux lines are respectively positioned in coal water collecting pit, the other end of the other end of No.1 reflux line and No. two reflux lines is connected to No. three reflux lines, the both ends of No. three reflux lines are connected to one end of one end of No. four reflux lines and No. five reflux lines respectively, the other end of No. four reflux lines is connected to main pipe, the other end of No. five reflux lines is connected to coal water sedimentation pond, No.1 delivery pump and No. two delivery pumps are separately mounted on No.1 reflux line and No. two reflux lines, No.1 butterfly valve and No. two butterfly valves are separately mounted to No. four and return On flow tube road and No. five reflux lines.
Description
Technical field
The present invention relates to a kind of coal water collection system for preventing coal slime from precipitating and coal-contained wastewater treatment process, belong to firepower hair
The auxiliary facility field of power plant.
Background technique
Conventional coal-contained wastewater treatment process is as follows:
Coal-contained wastewater → level-one coal water collecting pit (coal yard periphery) → coal water delivery pump → coal-contained wastewater sedimentation basin → middle water pump
(supernatant) → coal-contained wastewater processing unit → processing qualification waste water recycling to coal yard.
Coal slime in coal water sedimentation pond sends coal yard back to after coal slime is caught.
Coal-contained wastewater treatment process is different due to the difference of coal-contained wastewater processing unit, be broadly divided into coagulation dosing method,
Electric flocculation method, high tower method etc., but something in common is exactly to require level-one coal yard collecting pit and coal-contained wastewater sedimentation basin.Contain
Coal waste water treatment system is the highest water treatment system of coal-fired power plant's failure rate, mainly be exactly because level-one coal water collecting pit with
Coal-contained wastewater sedimentation basin causes whole system to be stopped transport because coal slime is deposited.
As shown in Figure 1: because the coal water solid content in coal water collecting pit is higher, lead to coal slime deposition velocity in coal water collecting pit
It is very fast, not in time such as coal mud clearing, then it will lead to entire coal-contained wastewater processing system and stop transport, coal water then overflows from collecting pit always
Stream.
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
The coal water collection system and coal-contained wastewater treatment process for preventing coal slime from precipitating.
Technical solution used by the present invention solves the above problems is: the coal water collection system for preventing coal slime from precipitating, packet
Include coal water sedimentation pond, overflow weir, coal-contained wastewater processing unit, coal slime grab bucket and coal-contained wastewater collection device, the overflow weir peace
Mounted in coal water sedimentation pond, and coal water sedimentation pond is divided into coal water sedimentation area and overflow area, the coal-contained wastewater processing by overflow weir
Device is connect with overflow area, and the coal slime grab bucket is located at the top in coal water sedimentation area, the coal-contained wastewater collection device and coal water
Settling zone connection, design feature are: the coal-contained wastewater collection device includes coal water collecting pit, liquidometer, coal-contained wastewater
Service, main pipe, branch pipe, through-hole, boring cover, No.1 reflux line, No. two reflux lines, No. three reflux lines, No. four reflux
Pipeline, No. five reflux lines, No.1 delivery pump, No. two delivery pumps, No.1 butterfly valve and No. two butterfly valves；The liquidometer is mounted on coal
On water collecting pit, the coal-contained wastewater service is connected to coal water collecting pit, and the main pipe is located in coal water collecting pit, described
One end of branch pipe is connected to main pipe, and the boring cover is mounted on the other end of branch pipe, and the through-hole is arranged on branch pipe, the No.1
One end of reflux line and one end of No. two reflux lines are respectively positioned in coal water collecting pit, the other end of the No.1 reflux line
It is connected to No. three reflux lines with the other end of No. two reflux lines, the both ends of No. three reflux lines are returned with No. four respectively
The one end in flow tube road is connected to one end of No. five reflux lines, and the other end of No. four reflux lines is connected to main pipe, described
The other end of No. five reflux lines is connected to 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 lines and No. five times
On flow tube road.It is optimized for existing coal water collecting pit, increases reflux line, using existing coal water delivery pump to coal water
Collecting pit is adequately stirred, and the deposition of coal slime in coal water collecting pit is prevented.It is real by newly-increased reflux line and 2 butterfly valves
Being sufficiently stirred for coal water collecting pit is showed, it is therefore prevented that coal slime preferably guarantees coal-contained wastewater processing in the deposition of coal water collecting pit
The normal operation of system.
Further, the coal water collecting pit includes coal slime crystallizing field and recirculating zone, the coal slime crystallizing field and recirculating zone
Connection, the liquidometer are mounted on coal slime crystallizing field, and the coal-contained wastewater service is connected to coal slime crystallizing field, described
Main pipe is located in coal slime crystallizing field, and one end of the No.1 reflux line and one end of No. two reflux lines are respectively positioned on recirculating zone
It is interior.
Further, the branch pipe is vertically arranged with main pipe.
Further, the quantity of the through-hole is multiple, and the multiple through-hole is uniformly arranged along the length direction of branch pipe.
Further, the axis direction of two neighboring through-hole is staggered.
Further, the angle between the axis of two neighboring through-hole is 90 °.
Further, the recirculating zone is located at the lower section of coal slime crystallizing field.
Further, the quantity of the coal-contained wastewater collection device is multiple.
Further, the top of the overflow weir is overflow port.
Further, another technical purpose of the invention is to provide a kind of coal water collection system for preventing coal slime from precipitating
Coal-contained wastewater treatment process.
Above-mentioned technical purpose of the invention technical scheme is that.
A kind of coal-contained wastewater treatment process for the coal water collection system for preventing coal slime from precipitating, it is characterized in that: it is described to contain coal
Waste water treatment process is as follows:
1) start No.1 delivery pump when liquid level reaches high liquid level limit in coal water collecting pit；
2) the No.1 butterfly valve on No. four reflux lines is opened, and No. two butterfly valves on No. five reflux lines are closed, and carries out returning for minute
Stream stirring, until bottom of pond deposits all in coal water collecting pit are stirred；
3) the No.1 butterfly valve on No. four reflux lines is closed, No. two butterfly valves on No. five reflux lines are opened, by coal water collecting pit
Interior coal water boosting is delivered to coal water sedimentation 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 this prevents coal water collection system of coal slime precipitating and gives up containing coal
Water treatment technology can be under the premise of not increasing equipment in coal water collecting pit suitable for the coal water collecting pit of larger coal yard
Coal water adequately stirred, make all coal water that can all be delivered to coal water sedimentation pond, effectively avoid coal slime in coal
Investment and human cost are effectively saved the problems such as system shutdown caused by deposition in water collecting pit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in coal water sedimentation pond in the prior art.
Fig. 2 is the structural schematic diagram of the coal-contained wastewater collection device of the embodiment of the present invention.
Fig. 3 is the main pipe of the embodiment of the present invention and the structural schematic diagram that branch pipe is connect.
Fig. 4 is the structural schematic diagram of the through-hole of the embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the through-hole of the embodiment of the present invention.
In figure: coal water sedimentation pond 1, overflow weir 2, coal-contained wastewater processing unit 3, coal slime grab bucket 4, coal-contained wastewater collection device
5, coal water sedimentation area 6, overflow area 7, coal water collecting pit 51, liquidometer 52, coal-contained wastewater service 53, main pipe 54, branch pipe 55,
Through-hole 56, boring cover 57,510, No. four reflux lines 511 of the reflux line of reflux line 59, three of No.1 reflux line 58, two,
No. five reflux lines 512,513, No. two delivery pumps 514 of No.1 delivery pump, 515, No. two butterfly valves 516 of No.1 butterfly valve, coal slime deposition
Area 517, recirculating zone 518.
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 figs. 1 to 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.
The coal water collection system for preventing coal slime from precipitating in the present embodiment, including it is coal water sedimentation pond 1, overflow weir 2, useless containing coal
Water treatment facilities 3, coal slime grab bucket 4 and coal-contained wastewater collection device 5, overflow weir 2 are mounted on coal water sedimentation pond 1, overflow weir 2 it is upper
Side is overflow port, and coal water sedimentation pond 1 is divided into coal water sedimentation area 6 and overflow area 7, coal-contained wastewater processing unit 3 by overflow weir 2
It is connect with overflow area 7, coal slime grab bucket 4 is located at the top in coal water sedimentation area 6, and coal-contained wastewater collection device 5 and coal water sedimentation area 6 connect
It connects, the quantity of coal-contained wastewater collection device 5 is multiple.
Coal-contained wastewater collection device 5 in the present embodiment includes coal water collecting pit 51, liquidometer 52, coal-contained wastewater supply pipe
Road 53, main pipe 54, branch pipe 55, through-hole 56, boring cover 57, the reflux line of reflux line 59, three of No.1 reflux line 58, two
510,511, No. five reflux lines 512 of No. four reflux lines, 513, No. two delivery pumps 514 of No.1 delivery pump, 515 and of No.1 butterfly valve
No. two butterfly valves 516.
Liquidometer 52 in the present embodiment is mounted on coal water collecting pit 51, and coal-contained wastewater service 53 and coal water are collected
Pond 51 is connected to, and main pipe 54 is located in coal water collecting pit 51, and one end of branch pipe 55 is connected to main pipe 54, and branch pipe 55 is vertical with main pipe 54
Setting, boring cover 57 are mounted on the other end of branch pipe 55, and through-hole 56 is arranged on branch pipe 55, the quantity of through-hole 56 be it is multiple, it is multiple
Through-hole 56 is uniformly arranged along the length direction of branch pipe 55, and the axis direction of two neighboring through-hole 56 is staggered, two neighboring
Angle between the axis of through-hole 56 is 90 °.
One end of No.1 reflux line 58 in the present embodiment and one end of No. two reflux lines 59 are respectively positioned on the collection of coal water
In pond 51, the other end of the other end of No.1 reflux line 58 and No. two reflux lines 59 is connected to No. three reflux lines 510,
The both ends of No. three reflux lines 510 are connected to one end of one end of No. four reflux lines 511 and No. five reflux lines 512 respectively,
The other end of No. four reflux lines 511 is connected to main pipe 54, and the other end of No. five reflux lines 512 is connected to coal water sedimentation pond 1,
No.1 delivery pump 513 and No. two delivery pumps 514 are separately mounted on No.1 reflux line 58 and No. two reflux lines 59, No.1 butterfly
Valve 515 and No. two butterfly valves 516 are separately mounted on No. four reflux lines 511 and No. five reflux lines 512.
Coal water collecting pit 51 in the present embodiment includes coal slime crystallizing field 517 and recirculating zone 518, coal slime crystallizing field 517 with
Recirculating zone 518 is connected to, and liquidometer 52 is mounted on coal slime crystallizing field 517, coal-contained wastewater service 53 and coal slime crystallizing field 517
Connection, main pipe 54 are located in coal slime crystallizing field 517, and one end of one end of No.1 reflux line 58 and No. two reflux lines 59 is equal
In recirculating zone 518, recirculating zone 518 is located at the lower section of coal slime crystallizing field 517.
The coal-contained wastewater treatment process of the coal water collection system for preventing coal slime from precipitating in the present embodiment is as follows:
1) start No.1 delivery pump 513 when liquid level reaches high liquid level limit in coal water collecting pit 51；
2) the No.1 butterfly valve 515 on No. four reflux lines 511 is opened, and No. two butterfly valves 516 on No. five reflux lines 512 are closed,
The return stirring for carrying out 2 minutes, until bottom of pond deposits all in coal water collecting pit 51 are stirred；
3) the No.1 butterfly valve 515 on No. four reflux lines 511 is closed, No. two butterfly valves 516 on No. five reflux lines 512 are opened,
Coal water boosting in coal water collecting pit 51 is delivered to coal water sedimentation pond 1；
4) stop No. two delivery pumps 514 when liquid level reaches low liquid level limit in coal water sedimentation pond 1.
The coal water collection system for preventing coal slime from precipitating and coal-contained wastewater treatment process, the coal water suitable for larger coal yard are received
Collect pond 51, the coal water in coal water collecting pit 51 can adequately be stirred under the premise of not increasing equipment, make all coals
Water can all be delivered to coal water sedimentation pond 1, system caused by effectively avoiding coal slime from depositing in coal water collecting pit 51
The problems such as stoppage in transit, effectively saves investment and human cost.
Following case is realized by the above-mentioned coal water collection system for preventing coal slime from precipitating and coal-contained wastewater treatment process.
Case 1:
The coal-contained wastewater processing system technique of Hubei riverside coal yard terminal is as follows:
Coal-contained wastewater → coal water collecting pit → level-one coal water sedimentation pond → second level coal water sedimentation pond → efficiently (eddy flow) sewage purification
Water spot is used in device → reuse clear water reserviors → coal system flush, sprinkling water pump → coal system flush and sprinkling.Because of coal water collecting pit coal slime
Deposition velocity is fast, and cleaning not in time, causes coal-contained wastewater processing system often in stoppage in transit state, causes coal-contained wastewater and overflow
Stream.Because coal water is collected, pool volume is smaller, and the mechanical equipments such as coal slime grab bucket cannot be arranged in remote location, can only be manually clear weekly
Reason maintains the operation of coal-contained wastewater system reluctantly.
After the coal water collection system for preventing coal slime from precipitating and the transformation of coal-contained wastewater treatment process, every collecting pit is new
Increase 2 automatic butterfly valves and 40mUPVC pipeline, walk sort run according to above-mentioned operation, it is existing greatly to avoid collecting pit coal slime deposition
As.When only coal water collecting pit enters more bulk cinder, manual cleaning is just needed, by the cycle stretch-out of manual cleaning to 3-6
A month.
Case 2:
The coal-contained wastewater processing system technique of Shandong thermal power plant fuel system is as follows:
Coal-contained wastewater → coal water collecting pit → coal water sedimentation pond → electric flocculation device → bis- medium filter → clear water reserviors → clear
Water spot is used in water pump → coal system flush and sprinkling.Because coal water collecting pit coal slime deposition velocity is very fast, lead to coal-contained wastewater processing system
System is in long-term stoppage in transit state, and the long-term overflow of coal water to Industrial Wastewater Treatment station does not achieve the purpose that coal water is multiplexed self-loopa,
And collecting pit needs regular manual cleaning.
After the coal water collection system for preventing coal slime from precipitating and the transformation of coal-contained wastewater treatment process, collecting pit newly-increased 2
Platform automatic butterfly valve and 30mUPVC pipeline walk sort run according to above-mentioned operation, and coal-contained wastewater processing system is made to restore to operate normally,
Simultaneously by the cycle stretch-out of manual cleaning to 3 months or more.
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 water collection system for preventing coal slime from precipitating, including coal water sedimentation pond (1), overflow weir (2), coal-contained wastewater processing
Device (3), coal slime grab bucket (4) and coal-contained wastewater collection device (5), the overflow weir (2) are mounted on coal water sedimentation pond (1), and
Coal water sedimentation pond (1) is divided into coal water sedimentation area (6) and overflow area (7), the coal-contained wastewater processing unit by overflow weir (2)
(3) it is connect with overflow area (7), the coal slime grab bucket (4) is located at the top in coal water sedimentation area (6), and the coal-contained wastewater collects dress
It sets (5) to connect with coal water sedimentation area (6), it is characterised in that: the coal-contained wastewater collection device (5) includes coal water collecting pit
(51), liquidometer (52), coal-contained wastewater service (53), main pipe (54), branch pipe (55), through-hole (56), boring cover (57), No.1
Reflux line (58), No. two reflux lines (59), No. three reflux lines (510), No. four reflux lines (511), No. five return pipes
Road (512), No.1 delivery pump (513), No. two delivery pumps (514), No.1 butterfly valve (515) and No. two butterfly valves (516)；The liquid level
Meter (52) is mounted on coal water collecting pit (51), and the coal-contained wastewater service (53) is connected to coal water collecting pit (51), institute
It states main pipe (54) to be located in coal water collecting pit (51), one end of the branch pipe (55) is connected to main pipe (54), the boring cover (57)
It is mounted on the other end of branch pipe (55), the through-hole (56) is arranged on branch pipe (55), and the one of the No.1 reflux line (58)
End and one end of No. two reflux lines (59) are respectively positioned in coal water collecting pit (51), the other end of the No.1 reflux line (58)
It is connected to No. three reflux lines (510) with the other end of No. two reflux lines (59), the two of No. three reflux lines (510)
End is connected to one end of one end of No. four reflux lines (511) and No. five reflux lines (512) respectively, No. four reflux lines
(511) the other end is connected to main pipe (54), and the other end of No. five reflux lines (512) is connected to coal water sedimentation pond (1),
The No.1 delivery pump (513) and No. two delivery pumps (514) are separately mounted to No.1 reflux line (58) and No. two reflux lines
(59) on, the No.1 butterfly valve (515) and No. two butterfly valves (516) are separately mounted to No. four reflux lines (511) and No. five reflux
On pipeline (512).
2. the coal water collection system according to claim 1 for preventing coal slime from precipitating, it is characterised in that: the coal water collecting pit
It (51) include coal slime crystallizing field (517) and recirculating zone (518), the coal slime crystallizing field (517) is connected to recirculating zone (518), institute
It states liquidometer (52) to be mounted on coal slime crystallizing field (517), the coal-contained wastewater service (53) and coal slime crystallizing field (517)
Connection, the main pipe (54) are located in coal slime crystallizing field (517), one end of the No.1 reflux line (58) and No. two reflux
One end of pipeline (59) is respectively positioned in recirculating zone (518).
3. it is according to claim 1 prevent coal slime precipitate coal water collection system, it is characterised in that: the branch pipe (55) with
Main pipe (54) is vertically arranged.
4. the coal water collection system according to claim 1 for preventing coal slime from precipitating, it is characterised in that: the through-hole (56)
Quantity be it is multiple, the multiple through-hole (56) is uniformly arranged along the length direction of branch pipe (55).
5. the coal water collection system according to claim 1 for preventing coal slime from precipitating, it is characterised in that: two neighboring through-hole
(56) axis direction is staggered.
6. the coal water collection system according to claim 1 for preventing coal slime from precipitating, it is characterised in that: two neighboring through-hole
(56) the angle between axis is 90 °.
7. the coal water collection system according to claim 2 for preventing coal slime from precipitating, it is characterised in that: the recirculating zone
(518) it is located at the lower section of coal slime crystallizing field (517).
8. the coal water collection system according to claim 1 for preventing coal slime from precipitating, it is characterised in that: the coal-contained wastewater is received
The quantity of acquisition means (5) is multiple.
9. the coal water collection system according to claim 1 for preventing coal slime from precipitating, it is characterised in that: the overflow weir (2)
Top be overflow port.
10. a kind of containing based on the coal water collection system for preventing coal slime from precipitating described in any claim in claim 1-9
Coal waste water treatment process, it is characterised in that: the coal-contained wastewater treatment process is as follows:
1) start No.1 delivery pump (513) when coal water collecting pit (51) interior liquid level reaches high liquid level limit；
2) the No.1 butterfly valve (515) on No. four reflux lines (511) is opened, No. two butterfly valves on No. five reflux lines (512)
(516) it closes, 2 minutes return stirrings is carried out, until bottom of pond deposits all in coal water collecting pit (51) are stirred；
3) the No.1 butterfly valve (515) on No. four reflux lines (511) is closed, No. two butterflies on No. five reflux lines (512) are opened
The interior coal water boosting of coal water collecting pit (51) is delivered to coal water sedimentation pond (1) by valve (516)；
4) stop No. two delivery pumps (514) when coal water sedimentation pond (1) interior liquid level reaches low liquid level limit.
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| CN201910325328.3A CN110117091A (en) | 2019-04-22 | 2019-04-22 | A kind of coal water collection system and coal-contained wastewater treatment process preventing coal slime precipitating |
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| CN201910325328.3A CN110117091A (en) | 2019-04-22 | 2019-04-22 | A kind of coal water collection system and coal-contained wastewater treatment process preventing coal slime precipitating |
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| CN102358677A (en) * | 2011-09-16 | 2012-02-22 | 中国电力工程顾问集团西北电力设计院 | Coal slime treatment process |
| CN203006966U (en) * | 2012-12-14 | 2013-06-19 | 三一重工股份有限公司 | Sewage recycling system and mixing plant with same |
| CN204058203U (en) * | 2014-08-27 | 2014-12-31 | 新兴铸管股份有限公司 | A kind of water collecting basin mud stirring device |
| CN205421527U (en) * | 2016-04-06 | 2016-08-03 | 刘建华 | Prevent to deposit drainage pumping station of siltation |
| CN106219703A (en) * | 2016-08-31 | 2016-12-14 | 锦州华冠环境科技实业股份有限公司 | A kind of carbide slag and PAM combination process the device and method of black water |
| CN207221400U (en) * | 2017-03-31 | 2018-04-13 | 武汉格林环源净化工程有限公司 | Prevent the sedimentation basin of sludgd deposition and anaerobism |
| CN206927676U (en) * | 2017-06-26 | 2018-01-26 | 中煤科工集团西安研究院有限公司 | A kind of coal slime backflow coagulation-sedimentation equipment |
| CN208493950U (en) * | 2018-05-31 | 2019-02-15 | 内蒙古大唐国际托克托发电有限责任公司 | Blowdown pit coal mud treatment system |
| CN210457674U (en) * | 2019-04-22 | 2020-05-05 | 华电电力科学研究院有限公司 | Coal water collecting system for preventing coal slime from precipitating |
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