CN204298221U - A kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system - Google Patents
A kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system Download PDFInfo
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- CN204298221U CN204298221U CN201420633575.2U CN201420633575U CN204298221U CN 204298221 U CN204298221 U CN 204298221U CN 201420633575 U CN201420633575 U CN 201420633575U CN 204298221 U CN204298221 U CN 204298221U
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Abstract
The utility model discloses a kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system, it comprises settling pit, and it is connected with dredging plant by pipeline, and discharge port is connected with concentration basin by gravity flow canal, and channel is provided with slightly, fine fack dirt remover; Environmental-protection strand in concentration basin is inhaled ship and is connected by the oval stirred pot of pipeline and vertical " U " word; Grug feeding jar is connected with stirred pot by worm conveyor; Stirred pot is connected with mixing pit by gravity flow canal, and channel is provided with grid sewage-removing machine; Mixing pit is connected with barrier film plate-and-frame filter press by Pulp pump; Pressure filter lower end is provided with rotary conveyor; The filtrate pipeline of pressure filter is connected with settling pit with mixing pit; Concentration basin outlet is connected with folded plate flocculator by gravity flow canal, and it is connected with grug feeding jar by pipeline, is connected with rotational flow grit chamber by gravity flow canal.The utility model fully solves the problem that dewatering sludge system is worked continuously on a large scale, and filtrate was entered process and can directly be discharged, the more efficient and safety of whole system.
Description
Technical field
The utility model relates to a kind of sludge treatment system, and especially one carries out extensive continuous high-efficient environmental protection processed system to river course, lake dredging mud, and the mud resourcebility after process utilizes, and the filtrate after process can directly be discharged.
Background technology
China lake 80% is all subject to pollution in various degree, and from eighties of last century, country's input substantial contribution is administered, and within several years, has cut dirt from lake and has proceeded to the polluted bed mud desilting stage.The mud quantity that lake dredging up produces is large, and water content is high, is unfavorable for transport and ultimate disposal.Therefore, develop a kind of low cost, high efficiency sludge dewatering method is very urgent.Domestic technology of emerging in large numbers many dredging silt dehydrations in recent years, geotextile tube bag method, heat drying method, mechanical dehydration method etc.
Current maximum be mechanical dehydration method, but existing mechanical dehydration technology is only mud conditioning and mechanical dehydration are simply combined, at whole process procedure, parameter setting, lectotype selection and coupling are not all considered and calculate accurately.Exactly because do not consider these factors, current mechanical dehydration technology is all periodic running, yield poorly, cost is high, and the qualified discharge problem (general requirement PH < 9, SS < 20mg/L) of filtrate pH value and suspended solid (SS) cannot be solved.
Summary of the invention
The utility model can meet sludge dewatering mass-producing first to the mud mechanical dehydration engineering design in the environment-protective desilting of lake and run continuously and the holonomic system of filtrate process, and significantly improve mud output, the filtrate after process is without secondary environmental pollution.
In order to solve the problems of the technologies described above, the utility model have employed following technical scheme:
A kind of dredging silt continuous high-efficient environmental protection dewatering system, it is characterized in that: it comprises settling pit, settling pit is connected with dredging plant by mud conveying pipeline, and discharge port is connected with concentration basin by gravity flow canal, channel is provided with slightly, fine fack dirt remover, is mounted with environmental-protection strand and inhales ship in concentration basin.Environmental-protection strand is inhaled ship and is connected with vertical mixing tank by pipeline, is provided with stirrer in it; Grug feeding jar is connected with stirred pot by worm conveyor, and transfer roller end is provided with cement-weighting scale; Stirred pot is connected with mixing pit by gravity flow canal, and channel is provided with fine fack dirt remover; Be provided with Pulp pump in mixing pit, it is connected with barrier film plate-and-frame filter press by pipeline; Barrier film plate-and-frame filter press lower end is provided with rotary conveyor.The filtrate that barrier film plate-and-frame filter press produces is back to mixing pit by a pipeline part, a part enters settling pit, export to concentration basin after mixing with dredging lake (river) water and enter folded plate flocculator through the canal that flows automatically, grug feeding jar is connected with folded plate flocculator by pipeline; Rotational flow grit chamber is connected with folded plate flocculator by gravity flow canal.
Wherein, described vertical mixing tank is " U " word ellipse, installs baffle plate between two stirrers, can continuously feeding, stirring and discharging.Select three layers of blade mixer, hinged joint propeller angle is 45 °.
Wherein, the mud filtrate of described diaphragm filter press is back to mixing pit by three-way pipeline 50%, and 50% enters settling pit.
Wherein, be provided with environmental-protection strand in described concentration basin and inhale ship.
Wherein, described folded plate flocculator is divided into three sections, by different setback plate, forms with setback plate, flat board.Flap angle is 90 °, and flap length adopts 0.8-1.5m; Flap width adopts 0.5m.Flap spacing is less than 0.8m.
Wherein, impeller, rotation axis, electric motor, speed reduction unit and suction sand system is provided with in described rotational flow settling pond; Between sand discharge pipe and sand pump, install a gate valve in addition, sand pump exit pipeline chaining is to grit water separator top water-in.
Beneficial effect: the utility model can meet dredging silt high-efficiency and continuous processed, can directly discharge after filtrate process, without the secondary pollution of environment.Be specially adapted to quantities large, the duration is tight, the desilting project that environmental emission standard is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is stirred pot structural representation of the present utility model.
Fig. 3 is folded plate flocculator structural representation of the present utility model.
Fig. 4 is rotational flow grit chamber structural representation of the present utility model.
Embodiment:
Below in conjunction with accompanying drawing the utility model done and further explain.
During system works, mud is sent into settling pit by mud conveying pipeline by dredging plant, and settling pit volume is generally the half of mud hour flow, and grit particle diameter being greater than 6mm precipitates.Enter concentration basin by gravity flow canal again, gravity flow canal is arranged thick, thin two-stage grid sewage-removing machine (1 centimetre, grizzly bar interval and 1.5 centimetres), by foreign material removals such as the rubbish in mud.The volume of concentration basin is generally 10 times of mud hour flow.In concentration basin, be provided with environmental-protection strand inhale ship, inhale ship by strand and the mud after concentrated is delivered to stirred pot.Environmental-protection strand inhales the concentration of hydraulic mixture that ship can control to deliver in stirred pot effectively, and general solids content is more than 20%, and this is very crucial to the process of output and filtrate.Because concentration of hydraulic mixture is high, the unit time mud of process is just many, and filtrate is just few.Stirred pot adopts vertical " U " word ellipse, installs baffle plate between two stirrers, can continuously feeding, stirring and discharging.Select three layers of blade mixer, hinged joint propeller angle is 45 °.Mud quantitatively adds by the worm conveyor bottom grug feeding jar the conditioning medicament buied from Yunnan Qing Sheng Ingegneria Ambientale SRL while stirred pot stirs.Stirring system achieves continuously feeding, stirs, conditioning and discharging.After mud and medicament are uniformly mixed, entered fine fack dirt remover (1 centimetre, the grizzly bar interval) short stay in mixing pit in gravity flow canal, be delivered to barrier film plate-and-frame filter press by Pulp pump, Pulp pump lift is generally not less than 90 meters, and plate-and-frame filter press squeeze pressure is not less than 10 kilograms.Mud cake after squeezing drops on the rotary conveyor of board and frame machine lower end by action of gravity, delivers to mud cake stockyard.The mud filtrate of diaphragm filter press is back to mixing pit by three-way pipeline 50%, and 50% enters settling pit.The filtrate entering mixing pit can suppress the dissolving of nursing one's health medicament neutral and alkali material, and the filtrate entering settling pit can accelerate mud concentrating at concentration basin.The filtrate of concentration basin enters folded plate flocculator by gravity flow canal, and folded plate flocculation pool volume is 1/4th of filtrate hour flow, is divided into three sections, by different setback plate, forms with setback plate, flat board.Flap angle is 90 °, and flap length adopts 0.8-1.5m; Flap width adopts 0.5m.Flap spacing is less than 0.8m.Poly-ferric chloride is added as flocculation agent in folded plate flocculator.Supernatant liquor after flocculation sediment, flow to rotational flow settling pond certainly.Impeller, rotation axis, electric motor, speed reduction unit and suction sand system is provided with in rotational flow settling pond; Between sand discharge pipe and sand pump, install a gate valve in addition, sand pump exit pipeline chaining is to grit water separator top water-in.Due to filtrate in pond will be made during vane rotary to rotate, add that the filtrate in pond forms eddy current form, accelerates precipitation because filtrate tangentially enters the generation eddy flow consistent with impeller; Due to the rotation of impeller, decrease rotational flow settling pond and change because of flooding quantity the sensitivity causing change of flow state, therefore ensure that the stable of sedimentation effect.The final filtrate processed can safety dumping to natural water, non-secondary pollution.
Claims (6)
1. a dredging silt mass-producing continuous high-efficient environmental protection dewatering system, it is characterized in that: it comprises it and comprises settling pit, settling pit is connected with dredging plant by mud conveying pipeline, discharge port is connected with concentration basin by gravity flow canal, channel is provided with slightly, fine fack dirt remover, is mounted with environmental-protection strand and inhales ship in concentration basin; Environmental-protection strand is inhaled ship and is connected with vertical mixing tank by pipeline, is provided with stirrer in it; Grug feeding jar is connected with stirred pot by worm conveyor, and transfer roller end is provided with cement-weighting scale; Stirred pot is connected with mixing pit by gravity flow canal, and channel is provided with fine fack dirt remover; Be provided with Pulp pump in mixing pit, it is connected with barrier film plate-and-frame filter press by pipeline; Barrier film plate-and-frame filter press lower end is provided with rotary conveyor; The filtrate that barrier film plate-and-frame filter press produces is back to mixing pit by a pipeline part, and a part enters settling pit, and export to concentration basin after mixing with dredging lake, river and enter folded plate flocculator through the canal that flows automatically, grug feeding jar is connected with folded plate flocculator by pipeline; Rotational flow grit chamber is connected with folded plate flocculator by gravity flow canal.
2. a kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system according to claim 1, is characterized in that: described vertical mixing tank is " U " word ellipse, installs baffle plate between two stirrers, can continuously feeding, stirring and discharging; Select three layers of blade mixer, hinged joint propeller angle is 45 °.
3. a kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system according to claim 1, is characterized in that: the mud filtrate of described diaphragm filter press is back to mixing pit by three-way pipeline 50%, and 50% enters settling pit.
4. a kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system according to claim 1, is characterized in that: be provided with environmental-protection strand in described concentration basin and inhale ship.
5. a kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system according to claim 1, is characterized in that: described folded plate flocculator is divided into three sections, by different setback plate, forms with setback plate, flat board; Flap angle is 90 °, and flap length adopts 0.8-1.5m; Flap width adopts 0.5m; Flap spacing is less than 0.8m.
6. a kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system according to claim 1, is characterized in that: be provided with impeller, rotation axis, electric motor, speed reduction unit and suction sand system in described rotational flow settling pond; Between sand discharge pipe and sand pump, install a gate valve in addition, sand pump exit pipeline chaining is to grit water separator top water-in.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420633575.2U CN204298221U (en) | 2014-10-23 | 2014-10-23 | A kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system |
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| CN201420633575.2U CN204298221U (en) | 2014-10-23 | 2014-10-23 | A kind of dredging silt mass-producing continuous high-efficient environmental protection dewatering system |
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| CN204298221U true CN204298221U (en) | 2015-04-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130141A (en) * | 2015-08-27 | 2015-12-09 | 葛洲坝中固科技股份有限公司 | Continuous harmless treatment method and system for silt slurry |
| CN106277708A (en) * | 2015-06-02 | 2017-01-04 | 揭阳市润泰环保处理有限公司 | A kind of large-scale sludge dewatering Regeneration Treatment machinery and method |
| CN110725354A (en) * | 2019-09-27 | 2020-01-24 | 中国科学院生态环境研究中心 | Cutter-suction type integrated intelligent high-efficiency dredging ship |
| CN110759615A (en) * | 2019-11-25 | 2020-02-07 | 路德环境科技股份有限公司 | Silt dehydration curing system |
-
2014
- 2014-10-23 CN CN201420633575.2U patent/CN204298221U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277708A (en) * | 2015-06-02 | 2017-01-04 | 揭阳市润泰环保处理有限公司 | A kind of large-scale sludge dewatering Regeneration Treatment machinery and method |
| CN105130141A (en) * | 2015-08-27 | 2015-12-09 | 葛洲坝中固科技股份有限公司 | Continuous harmless treatment method and system for silt slurry |
| CN110725354A (en) * | 2019-09-27 | 2020-01-24 | 中国科学院生态环境研究中心 | Cutter-suction type integrated intelligent high-efficiency dredging ship |
| CN110759615A (en) * | 2019-11-25 | 2020-02-07 | 路德环境科技股份有限公司 | Silt dehydration curing system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20151023 |
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| EXPY | Termination of patent right or utility model |