CN210150934U - Treatment system for recycling black and odorous river sediment - Google Patents
Treatment system for recycling black and odorous river sediment Download PDFInfo
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- CN210150934U CN210150934U CN201920886139.9U CN201920886139U CN210150934U CN 210150934 U CN210150934 U CN 210150934U CN 201920886139 U CN201920886139 U CN 201920886139U CN 210150934 U CN210150934 U CN 210150934U
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Abstract
The utility model relates to a treatment system for recycling bottom mud of black and odorous rivers, which comprises a bottom mud dehydration system, an immobilized stabilization treatment system and a tail water treatment system; the bottom mud dewatering system comprises a thick mud pump, a centrifugal dehydrator and a belt conveyor a; the immobilized stabilization treatment system comprises a crusher, a belt conveyor b and a mixing and stirring station; the tail water treatment system comprises a water storage tank, a lift pump a, a coagulation reaction tank, a lift pump b, an activated carbon adsorption tank and a clean water tank; the utility model discloses can solidify the stabilization to the bed mud after the black and odorous water desilting, satisfy production and environmental protection requirement, convenient operation, low cost.
Description
Technical Field
The utility model mainly relates to a processing system for black and odorous river sediment resourceful.
Background
The river sediment is one of the important components of river water, and is generally a substance formed by recording soil, silt, organic matters, pollutants and the like for a long time and finally depositing at the bottoms of rivers and lakes under the combined action of chemical, physical and biological substances.
The sediment mainly comes from the particulate matter that contains in domestic sewage, industrial waste water and the agricultural irrigation water of discharging into the river course to the particulate matter in the river course can be piled up along with rivers slowly migrate, and final siltation is in the river course bottom. The river sediment not only contains nutrient substances needed by plants such as nitrogen, phosphorus, potassium, organic matters and the like, but also contains a part of heavy metals, pathogenic ovum microorganisms and organic pollutants which are difficult to degrade, and the heavy metals and the organic matters in the sediment can slowly migrate between sediment and water interfaces and are released into a water body again to cause secondary pollution of the river water environment, and meanwhile, the harmful substances can finally enter the body of people through a series of enrichment functions of a food chain, so that the health of people is harmed. Therefore, the subsequent disposal of the bottom mud in the river becomes one of the key problems that people need to solve.
The black and odorous river restoration method can be roughly divided into an in-situ restoration method and an ex-situ restoration method. The bottom mud in-situ remediation technology refers to a bottom mud remediation technology which is used for carrying out construction operation in situ of a river, reducing the pollution content and preventing the pollution content from being further released by adopting a physical chemical or biological method, namely cutting off a pollution source in the river. Ectopic remediation mainly refers to dredging of sediment, namely, sediment in a river is removed by large mechanical equipment through artificial construction. And then carrying out harmless resource treatment on the bottom mud generated by dredging.
And (3) solidifying and stabilizing the part of the sediment which is generated by dredging the black and odorous river to enable the part to exceed the standard to reach the standard of the I-type general industrial solid waste, and then paving a roadbed, and utilizing resources or performing safe landfill treatment.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a processing system for black and odorous river bed mud resourceization makes the bed mud after the solidification stabilization reach the general industry solid waste standard of the I type, later is used for laying road bed, utilization of resources or safe landfill and handles.
The technical scheme of the utility model:
a treatment system for recycling black and odorous river sediment comprises a sediment dewatering system, an immobilized stabilization treatment system and a tail water treatment system;
the bottom mud dewatering system comprises a thick mud pump, a centrifugal dehydrator and a belt conveyor a; the inlet of the thick slurry pump is positioned near the temporary storage yard, and the outlet of the thick slurry pump is connected with the feed inlet of the centrifugal dehydrator; a solid phase outlet of the centrifugal dehydrator is introduced to the front end of the belt conveyor a; a liquid phase outlet of the centrifugal dehydrator is connected with a water inlet of a water storage tank in the tail water treatment system;
the immobilized and stabilized treatment system comprises a crusher, a belt conveyor b and a mixing and stirring station, wherein a feeding port of the crusher is connected with the rear end of the belt conveyor a, a discharging port of the crusher is further connected with the front end of the belt conveyor b, and the rear end of the belt conveyor b is connected with a charging hopper of the mixing and stirring station;
the tail water treatment system comprises a water storage tank, a lift pump a, a coagulation reaction tank, a lift pump b, an activated carbon adsorption tank and a clean water tank; the water inlet of the water storage tank is connected with the liquid phase outlet of the centrifugal dehydrator, the water outlet of the water storage tank is further connected with the inlet of the lift pump a, the outlet of the lift pump a is connected with the water inlet of the coagulation reaction tank, the water outlet of the coagulation reaction tank is further connected with the inlet of the lift pump b, and the outlet of the lift pump b is connected with the water inlet of the activated carbon adsorption tank; the clean water tank is connected with the water outlet of the activated carbon adsorption tank.
The utility model has the advantages that: adopt the utility model discloses a processing system for black and odorous river bed mud resourceization can solidify the stabilization to the bed mud after black and odorous water desilting, satisfies production and environmental protection requirement, the utility model discloses well each device of adopting is ripe reaction unit, only makes up and just can reach the processing standard after practical according to specific order, has convenient operation, low cost's advantage.
Drawings
FIG. 1 is a schematic structural view of a recycling system for bottom mud of a black and odorous river according to the present invention;
FIG. 2 is a process flow chart of the recycling system for the bottom mud of the black and odorous river.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
A treatment system for recycling black and odorous river sediment comprises a sediment dewatering system 1, an immobilization stabilization treatment system 2 and a tail water treatment system 3;
the bottom sediment dewatering system 1 comprises a thick slurry pump 1-2, a centrifugal dewatering machine 1-3 and a belt conveyor a 1-4; the inlet of the underflow pump 1-2 is positioned near the temporary storage yard 1-1, and the outlet of the underflow pump 1-2 is connected with the feed inlet of the centrifugal dehydrator 1-3; a solid phase outlet of the centrifugal dehydrator 1-3 is introduced to the front end of a belt conveyor a 1-4; a liquid phase outlet of the centrifugal dehydrator 1-3 is connected with a water inlet of a water storage tank 3-1 in the tail water treatment system 3;
the immobilized and stabilized treatment system 2 comprises a crusher 2-1, a belt conveyor b2-2 and a mixing and stirring station 2-3, wherein a feeding port of the crusher 2-1 is connected with the rear end of a belt conveyor a1-4, a discharging port of the crusher 2-1 is further connected with the front end of a belt conveyor b2-2, and the rear end of the belt conveyor b2-2 is connected with a charging hopper of the mixing and stirring station 2-3; the mixing and stirring station 2-3 comprises a cement bin, a fly ash bin, a belt conveyor, a stirrer, a dosing system, a weighing system and a control system; wherein, the sludge crushed by the crusher 2-1 is conveyed to a weighing system through a belt conveyor b2-2, cement and fly ash are added into the stirrer together with the sludge according to a set proportion through the weighing system, and a chelating agent is also added into the stirrer through a dosing system;
the tail water treatment system 3 comprises a water storage tank 3-1, a lift pump a3-2, a coagulation reaction tank 3-3, a lift pump b3-4, an activated carbon adsorption tank 3-5 and a clean water tank 3-6; the water inlet of the water storage tank 3-1 is connected with the liquid phase outlet of the centrifugal dehydrator 1-3, the water outlet of the water storage tank is further connected with the inlet of a lift pump a3-2, the outlet of the lift pump a3-2 is connected with the water inlet of a coagulation reaction tank 3-3, the water outlet of the coagulation reaction tank 3-3 is further connected with the inlet of a lift pump b3-4, and the outlet of the lift pump b3-4 is connected with the water inlet of an activated carbon adsorption tank 3-5; the clean water tank 3-6 is connected with the water outlet of the activated carbon adsorption tank 3-5; the coagulation reaction tank 3-3 comprises a PAM dosing device 3-3-1, a PAC dosing device 3-3-2, an alkali liquor dosing device 3-3-3 and a sludge screw pump 3-3-4, the PAM dosing device 3-3-1, the PAC dosing device 3-3-2 and the alkali liquor dosing device 3-3-3 are all introduced into the coagulation reaction tank 3-3, dosing is carried out in real time, and the sludge screw pump 3-3-4 is used for stirring the mixture in the coagulation reaction tank 3-3.
The mixing and stirring station 2-3 fully mixes the cement, the fly ash, the chelating agent and the dehydrated bottom mud, and the mass ratio of the cement to the fly ash to the dehydrated bottom mud is as follows: 0.44:0.06:0.012:1.
The centrifugal dehydrator 1-3 adopts a horizontal centrifugal dehydrator;
the crusher 2-1 adopts a double-shaft sludge crusher;
the activated carbon adsorption tanks 3-5 have a self-cleaning function.
Claims (3)
1. A treatment system for recycling black and odorous river sediment is characterized by comprising a sediment dewatering system (1), an immobilization and stabilization treatment system (2) and a tail water treatment system (3);
the bottom mud dewatering system (1) comprises a thick mud pump (1-2), a centrifugal dewaterer (1-3) and a belt conveyor a (1-4); the inlet of the underflow pump (1-2) is positioned near the temporary storage yard (1-1), and the outlet of the underflow pump (1-2) is connected with the feed inlet of the centrifugal dehydrator (1-3); a solid phase outlet of the centrifugal dehydrator (1-3) is communicated to the front end of the belt conveyor a (1-4); a liquid phase outlet of the centrifugal dehydrator (1-3) is connected with a water inlet of a water storage tank (3-1) in the tail water treatment system (3);
the immobilized and stabilized treatment system (2) comprises a crusher (2-1), a belt conveyor b (2-2) and a mixing and stirring station (2-3), wherein a feed inlet of the crusher (2-1) is connected with the rear end of the belt conveyor a (1-4), a discharge outlet of the crusher (2-1) is further connected with the front end of the belt conveyor b (2-2), and the rear end of the belt conveyor b (2-2) is connected with a feed hopper of the mixing and stirring station (2-3);
the tail water treatment system (3) comprises a water storage tank (3-1), a lift pump a (3-2), a coagulation reaction tank (3-3), a lift pump b (3-4), an activated carbon adsorption tank (3-5) and a clean water tank (3-6); the water inlet of the water storage tank (3-1) is connected with the liquid phase outlet of the centrifugal dehydrator (1-3), the water outlet of the water storage tank is further connected with the inlet of the lift pump a (3-2), the outlet of the lift pump a (3-2) is connected with the water inlet of the coagulation reaction tank (3-3), the water outlet of the coagulation reaction tank (3-3) is further connected with the inlet of the lift pump b (3-4), and the outlet of the lift pump b (3-4) is connected with the water inlet of the activated carbon adsorption tank (3-5); the clean water tank (3-6) is connected with the water outlet of the activated carbon adsorption tank (3-5); the coagulation reaction tank (3-3) comprises a PAM dosing device (3-3-1), a PAC dosing device (3-3-2), an alkali liquor dosing device (3-3-3) and a sludge screw pump (3-3-4), wherein the PAM dosing device (3-3-1), the PAC dosing device (3-3-2) and the alkali liquor dosing device (3-3-3) are all introduced into the coagulation reaction tank (3-3) for dosing in real time, and the sludge screw pump (3-3-4) is used for stirring a mixture in the coagulation reaction tank (3-3).
2. The treatment system for recycling the black and odorous river sediment as claimed in claim 1, wherein the mixing and stirring station (2-3) comprises a cement bin, a fly ash bin, a belt conveyor, a stirrer, a dosing system, a weighing system and a control system; wherein, the sludge crushed by the crusher (2-1) is conveyed to a weighing system by a belt conveyor b (2-2), cement and fly ash are added into the stirrer together with the sludge according to a set proportion by the weighing system, and the chelating agent is also added into the stirrer together with the sludge by a dosing system.
3. The treatment system for recycling the black and odorous river bottom mud according to claim 1 or 2, wherein the centrifugal dehydrator (1-3) adopts a horizontal centrifugal dehydrator; the crusher (2-1) adopts a double-shaft sludge crusher; the activated carbon adsorption tanks (3-5) have a self-cleaning function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920886139.9U CN210150934U (en) | 2019-06-13 | 2019-06-13 | Treatment system for recycling black and odorous river sediment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920886139.9U CN210150934U (en) | 2019-06-13 | 2019-06-13 | Treatment system for recycling black and odorous river sediment |
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| CN210150934U true CN210150934U (en) | 2020-03-17 |
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| CN201920886139.9U Active CN210150934U (en) | 2019-06-13 | 2019-06-13 | Treatment system for recycling black and odorous river sediment |
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Address after: 116023 No.1, 21st floor, office room, block a, SoftView center, 1a-4 Software Park Road, Dalian high tech Zone, Dalian, Liaoning Province Patentee after: Dalian Institute of Technology Environmental Engineering Design and Research Institute Co., Ltd. Address before: 116023 No.1, 21st floor, office room, block a, SoftView center, 1a-4 Software Park Road, Dalian high tech Zone, Dalian, Liaoning Province Patentee before: ENVIRONMENTAL ENGINEERING INSTITUTE LTD OF DALIAN University OF TECHNOLOGY |