CN216639239U - High-efficiency dehydration and solidification system for high-water-content bottom mud - Google Patents
High-efficiency dehydration and solidification system for high-water-content bottom mud Download PDFInfo
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- CN216639239U CN216639239U CN202123205956.XU CN202123205956U CN216639239U CN 216639239 U CN216639239 U CN 216639239U CN 202123205956 U CN202123205956 U CN 202123205956U CN 216639239 U CN216639239 U CN 216639239U
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Abstract
The utility model relates to a high-efficiency dehydration and solidification system for bottom mud with high water content, which comprises the following steps: comprises a horizontal sedimentation module, a vertical sedimentation module and a filter pressing module; the horizontal sedimentation module comprises: the electric vibrating screen instrument is used for intercepting large-particle garbage in the high-water-content slurry; the horizontal sedimentation tank is used for temporarily storing the high-water-content slurry filtered by the electric vibrating screen instrument; a dosing tank I for adding a flocculating agent into the horizontal sedimentation tank; the vertical settling module comprises: the dosing box II is used for adding a coagulating agent and a flocculating agent into the slurry in the coagulating device; the coagulation device is used for receiving the sediment bottom mud of the horizontal sedimentation tank; the vertical settling tank is used for receiving and temporarily storing the precipitated slurry of the coagulation device; the filter pressing module comprises: a dosing tank III for adding a flocculating agent to the slurry on the belt type filter pressing device; and the belt type filter pressing device is used for receiving the sediment bottom mud of the vertical settling tank.
Description
Technical Field
The utility model relates to an efficient dehydration and solidification system for bottom mud with high water content. Is suitable for the technical field of water environment treatment.
Background
The dredging of the bottom mud of the river channel is one of the important measures of water conservancy projects and water environment treatment, is favorable for ensuring the flood-carrying capacity of the river channel and eliminating the endogenous pollution of the polluted river channel. The types of sediment dredging modes are various, and the sediment dredging modes can be roughly divided into draining dredging and water-carrying dredging. In order to minimize the interference of dredging engineering to the water ecological environment and the surrounding environment, the environment-friendly cutter suction dredging in the water carrying dredging becomes a main dredging mode.
The environment-friendly cutter suction dredging utilizes a reamer to disturb the bottom mud, and the mud and the water are brought into a disposal site together through vacuum suction. The water content of the slurry cleaned by the method is large, and the volume of the slurry can be 6-10 times of that of the bottom sludge (6-10 times of that of an underwater natural side), so that under the premise of limited construction period, high requirements are provided for site area and a dehydration process.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: to the problem that above-mentioned exists, provide a high-efficient dehydration curing system of high moisture content bed mud to promote mud dehydration curing efficiency, shorten the cycle, the land use is practiced thrift.
The technical scheme adopted by the utility model is as follows: the utility model provides a high-efficient dehydration solidification system of high moisture content bed mud which characterized in that: comprises a horizontal sedimentation module, a vertical sedimentation module and a filter pressing module;
the horizontal sedimentation module comprises:
the electric vibrating screen instrument is used for intercepting large-particle garbage in the high-water-content slurry;
the horizontal sedimentation tank is used for temporarily storing the high-water-content slurry filtered by the electric vibrating screen instrument;
the feeding box I is used for feeding a flocculating agent into the horizontal sedimentation tank so as to promote the fine particles in the slurry in the horizontal sedimentation tank to flocculate to form particles with larger particle size, thereby promoting sedimentation;
the vertical sedimentation module comprises a coagulation device, a dosing tank II and a vertical sedimentation tank, wherein:
the dosing box II is used for adding a coagulating agent and a flocculating agent into the slurry in the coagulating device;
the coagulation device is used for receiving the sediment of the horizontal sedimentation tank and fully mixing the slurry with a coagulation agent and a flocculation agent through stirring;
the vertical settling tank is used for receiving and temporarily storing the precipitated slurry of the coagulation device;
the filter-pressing module includes dosing tank III and belt filter pressing device, wherein:
a dosing tank III for adding a flocculating agent to the slurry on the belt type filter pressing device;
and the belt type filter pressing device is used for receiving the sediment bottom mud of the vertical settling tank and realizing the dehydration of the mud by pressurization.
The system also comprises a residual water treatment module for treating the clear water on the horizontal sedimentation tank, the overflow water of the coagulation device and the overflow water of the vertical sedimentation tank.
The particle size of the screen of the electric vibrating screen instrument is not more than 3 mm.
The dosage of the dosing box I is determined according to the mud content of each prescription, and the mud content V of the mudsCalculated according to the volume V and the water content P1 of the underwater natural side of the sludge,
Vs＝(1-P1)·V。
the utility model has the beneficial effects that: according to the utility model, large granular substances in the slurry are removed through the horizontal sedimentation module, so that favorable conditions are created for the subsequent dehydration module and the water content is reduced; the secondary sedimentation of the slurry is realized in a short time through the vertical sedimentation module, so that the water content is further reduced; through the filter pressing module and the residual water disposal module, the dehydration and solidification of the bottom mud and the harmless discharge of the residual water are realized. The utility model optimizes the mud precipitation link of the conventional process and improves the mud discharging efficiency of the filter pressing equipment by coupling the horizontal sedimentation and the vertical sedimentation, and compared with the traditional process, the utility model realizes the improvement of small occupied area, short period and the like.
Drawings
FIG. 1 is a process flow diagram of the dehydration curing of the system in the example.
Fig. 2 is a structural block diagram of the horizontal settling module in the embodiment.
Fig. 3 is a structural block diagram of the vertical settling module in the embodiment.
FIG. 4 is a block diagram showing the construction of a filter pressing module in the embodiment.
10. A mud horizontal sedimentation module; 11. an electric vibrating screen instrument; 12. a dosing box I; 13. a horizontal sedimentation tank; 20. a vertical settling module; 21. a dosing box II; 22. a coagulation device; 23. a vertical settling tank; 30. a filter pressing module; 31. a dosing box III; 32. a belt type filter pressing device.
Detailed Description
The embodiment is a high-efficiency dehydration and solidification system for high-water-content bottom sediment, and the system comprises a horizontal sedimentation module 10, a vertical sedimentation module 20, a filter pressing module 30 and a residual water treatment module 40.
The horizontal sedimentation module 10 in the embodiment comprises an electric vibrating sieve instrument 11, a dosing tank I12 and a horizontal sedimentation tank 13 and is used for filtering and primarily settling large-particle garbage in high-water-content slurry.
In the embodiment, the particle size of a screen of an electric vibrating screen instrument 11 is not more than 3mm, and the electric vibrating screen instrument is used for intercepting large-particle garbage in high-water-content slurry; the dosing tank I12 is used for adding flocculating agents into the horizontal sedimentation tank 13 to promote fine particles in slurry in the horizontal sedimentation tank 13 to flocculate and form particles with larger particle sizes, so that sedimentation is promoted to occur, the dosing amount of the dosing tank I is determined according to the mud content of each side (generally, kg/mud content of each side, and specific needs are determined according to field experiments, so specific values cannot be given), and the mud content Vs is calculated according to the volume V and the water content P1 of an underwater natural side of sludge: vs＝(1-P1) V; the horizontal sedimentation tank 13 is used for temporarily storing the high-water-content slurry filtered by the electric vibrating screen 11, supernatant water of the slurry in the horizontal sedimentation tank 13 after standing is sent to the residual water treatment module 40, and sediment bottom mud is sent to the vertical sedimentation module 20.
The vertical settling module 20 in this embodiment mainly includes a dosing box ii 21, a coagulation device 22 and a vertical settling tank 23, and realizes secondary settling of slurry, which is a key link for significantly reducing the water content of slurry.
The adding box 21 in this embodiment is mainly used for adding a mixture of a coagulating agent and a flocculating agent into the slurry in the coagulating device 21, and simultaneously realizing fine particle flocculation and suspended particle coagulation to promote slurry precipitation; the coagulation device 22 comprises a bottom sludge outlet and a top overflow outlet, receives the sediment bottom sludge sent by the horizontal sedimentation module 10, and fully mixes the slurry with a coagulation medicament and a flocculation medicament by stirring to fully exert the medicament function; clear water overflowing from the upper layer in the coagulation process of the coagulation device 22 enters the residual water treatment module 40, and the precipitation slurry is pumped into the vertical settling tank 23; perpendicular settling cask 23 includes bottom mud outlet and top overflow mouth, receives the sediment mud that coagulation device 22 sent into, and the upper strata overflows the clear water and gets into surplus water and deals with module 40 after keeping in the stationary phase, deposits the bed mud and gets into belt filter-pressing module, has realized the secondary high efficiency of bed mud and has precipitated.
In this embodiment, the filter pressing module 30 mainly includes a dosing box iii 31 and a belt filter pressing device 32 to further reduce the water content of the slurry until a mud cake is formed, which is beneficial to subsequent resource utilization.
In the embodiment, the adding box III 31 is used for adding a flocculating agent into the slurry on the belt type filter pressing device 32 to agglomerate fine particles in the slurry; the belt type filter pressing device 32 receives the sediment bottom mud sent by the vertical settling tank 23, and realizes slurry dehydration through the extrusion of an upper mesh belt and a lower mesh belt, and the filter pressing residual water is sent to the residual water treatment module 40.
In this embodiment, the residual water treatment module 40 is mainly an integrated magnetic separation sewage treatment device, and is used for treating the fed residual water to realize harmless discharge of the residual water treated by the bottom sludge.
The method has the advantages that the horizontal sedimentation and the vertical sedimentation of the slurry are privately and vertically coupled, the single sedimentation mode of the traditional process is improved, the water content of the slurry entering the filter pressing equipment is reduced, and the dehydration and solidification efficiency of the slurry is improved. Through the efficient dehydration and solidification process of the bottom mud with high water content, the period from the dehydration and solidification of the mud with the water content of nearly 95% to the mud cake with the water content of 60% is shortened by about 30% compared with the conventional belt type filter pressing process, and the required site area is reduced by nearly 1/3% under the requirement of the same construction period.
Claims (4)
1. The utility model provides a high-efficient dehydration solidification system of high moisture content bed mud which characterized in that: comprises a horizontal sedimentation module (10), a vertical sedimentation module (20) and a filter pressing module (30);
the horizontal settling module (10) comprises:
the electric vibrating screen instrument (11) is used for intercepting large-particle garbage in the high-water-content slurry;
the horizontal sedimentation tank (13) is used for temporarily storing the high-water-content slurry filtered by the electric vibrating screen instrument (11);
a dosing tank I (12) which is used for adding a flocculating agent into the horizontal sedimentation tank (13) to promote the fine particles in the slurry in the horizontal sedimentation tank (13) to flocculate to form particles with larger particle size, so as to promote sedimentation;
the vertical sedimentation module (20) comprises a coagulation device (21), a dosing box II (22) and a vertical sedimentation tank (23), wherein:
a dosing tank II (22) for adding a coagulation chemical and a flocculation chemical to the slurry in the coagulation device (21);
the coagulation device (21) is used for receiving the sediment of the horizontal sedimentation tank (13) and fully mixing the mud with a coagulation agent and a flocculation agent through stirring;
a vertical settling tank (23) for receiving and temporarily storing the settled slurry of the coagulation device (21);
the filter pressing module (30) comprises a dosing box III (31) and a belt type filter pressing device (32), wherein:
a dosing tank III (31) for adding a flocculating agent to the slurry on the belt filter pressing device (32);
a belt type filter pressing device (32) is used for receiving the sediment bottom mud of the vertical settling tank (23) and realizing the dehydration of the mud through pressurization.
2. The high-efficiency dehydration and solidification system for high-water-content bottom mud according to claim 1, characterized in that: the system also comprises a residual water treatment module (40) which is used for treating the clear water in the horizontal sedimentation tank (13), the overflow water of the coagulation device (21) and the overflow water of the vertical sedimentation tank (23).
3. The high-efficiency dehydration and solidification system for high-water-content bottom mud according to claim 1, characterized in that: the particle size of the screen of the electric vibrating screen instrument (11) is not more than 3 mm.
4. The high-efficiency dehydration and solidification system for the high-water-content bottom mud of claim 1, characterized in that: the dosage of the dosing box I (12) is determined according to the mud content of each prescription, and the mud content V of the mudsCalculated according to the volume V and the water content P1 of the underwater natural side of the sludge,
Vs＝(1-P1)·V。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123205956.XU CN216639239U (en) | 2021-12-20 | 2021-12-20 | High-efficiency dehydration and solidification system for high-water-content bottom mud |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123205956.XU CN216639239U (en) | 2021-12-20 | 2021-12-20 | High-efficiency dehydration and solidification system for high-water-content bottom mud |
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| Publication Number | Publication Date |
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| CN216639239U true CN216639239U (en) | 2022-05-31 |
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| CN202123205956.XU Active CN216639239U (en) | 2021-12-20 | 2021-12-20 | High-efficiency dehydration and solidification system for high-water-content bottom mud |
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2021
- 2021-12-20 CN CN202123205956.XU patent/CN216639239U/en active Active
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