CN211570426U - River and lake bottom mud grading treatment and resource utilization system - Google Patents
River and lake bottom mud grading treatment and resource utilization system Download PDFInfo
- Publication number
- CN211570426U CN211570426U CN201922265343.1U CN201922265343U CN211570426U CN 211570426 U CN211570426 U CN 211570426U CN 201922265343 U CN201922265343 U CN 201922265343U CN 211570426 U CN211570426 U CN 211570426U
- Authority
- CN
- China
- Prior art keywords
- mud
- hydrocyclone
- thickener
- bottom mud
- river
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to a river lake bed mud grading and utilization system, inhale the ship, sieve in advance, store up mud pond, drum sieve, one-level hydrocyclone, fluidized bed sorter, shale shaker, second grade hydrocyclone, spiral chute, vacuum belt filter press, thickener, charge device, stirred tank and plate and frame filter press including the hank. The utility model discloses a separate, select separately, dehydration process has realized the categorised resource utilization of river lake bed mud to river lake bed mud, and sand material can be used to building raw materials, and the slag charge can be used to burn, and coarse grain and mud cake can be used to fill, accord with circular economy's theory. The utility model discloses a minimizing handles river lake bed mud, makes the dehydration volume and the pollutant handling volume significantly reduced of river lake bed mud, has reduced the cost of outward transport processing, has practiced thrift the land resource that the landfill occupy, has reduced secondary pollution, has solved the difficult problem that river lake desilting high moisture content, high volume bed mud were handled.
Description
Technical Field
The utility model relates to a river lake bed processing field, more specifically say, relate to a river lake bed mud stage treatment and resource utilization system.
Background
The river and lake bottom mud is the main solid waste dug by the river and lake environment-friendly dredging engineering. At present, about 90 percent of urban rivers in China are seriously polluted, and dredged river and lake sediment is high in water content and low in strength, also contains a large amount of microorganisms, pathogens and overproof heavy metals and is also seriously harmful. At present, the deep dehydration of the bottom mud after river and lake dredging does not need further resource treatment, the treated bottom mud still depends on outward transportation and landfill, the land occupation is large, the cost is high, and the secondary pollution can be caused. The post-treatment problem of the polluted bottom mud of the urban lakes is a technical problem which always puzzles the pollution control of the urban rivers and lakes.
In addition, the river and lake bottom mud is a heterogeneous multi-component substance which generally takes inorganic components as main components, mainly comprises quartz, clay minerals (illite, kaolinite and montmorillonite) and feldspar minerals, and also contains a small amount of carbonate, trace sulfate, phosphate and organic matter components, the particle components of the river and lake bottom mud mainly comprise gravel, sand, silt and clay particles, the content of the gravel is about 5 percent, and the content of the sand and the silt can reach about 75 percent, so that the river and lake bottom mud can be used for building materials. Therefore, the treatment process for separating and sorting the river and lake bottom mud is developed, the effective components in the bottom mud are screened and fully utilized, the problems of large dehydration amount, high transportation cost and serious secondary pollution in the traditional bottom mud treatment process can be solved, the bottom mud can be recycled, the problem of final outlet is thoroughly solved, and the treatment process has very important significance for river and lake ecological management and resources.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in providing a river lake bed mud stage treatment and utilization system, increase the utilization process of resources on dehydration minimizing technology basis, realize the meticulous classification of river lake bed mud, the abundant separation to carry out utilization respectively.
The utility model provides a technical scheme that its technical problem adopted is: constructing a river and lake bottom mud grading treatment and resource utilization system, which comprises a cutter suction boat, a pre-sieve, a mud storage tank, a drum sieve, a primary hydrocyclone, a fluidized bed separator, a vibrating sieve, a secondary hydrocyclone, a spiral chute, a vacuum belt filter press, a thickener, a dosing device, a stirring tank and a plate and frame filter press; the cutter suction boat pumps bottom mud from rivers and lakes to the front of a pre-screening sieve, the pre-screening sieve is arranged at an inlet of a mud storage tank, the bottom mud in the mud storage tank is pumped to a drum sieve, the drum sieve is connected with an inlet of a primary hydrocyclone, an underflow outlet of the primary hydrocyclone is connected with a fluidized bed separator, and an underflow outlet of the fluidized bed separator is connected with a vibrating screen; the inlet of the second-stage hydrocyclone is respectively connected with the overflow of the first-stage hydrocyclone, the overflow outlet of the fluidized bed separator and the underflow outlet of the vibrating screen, the overflow outlet of the second-stage hydrocyclone is connected with the inlet of the thickener, the underflow outlet of the second-stage hydrocyclone is connected with the spiral chute, the light material outlet of the spiral chute is connected with the thickener, the heavy material outlet of the spiral chute is connected with the vacuum belt filter press, the filtrate outlet of the vacuum belt filter press is connected with the inlet of the second-stage hydrocyclone, the upper part of the thickener is connected with a dosing device, the outlet at the bottom of the thickener is connected with the stirring tank, the overflow water of the thickener is discharged into a receiving water body through a pipeline, the dosing device is used for quantitatively adding a flocculating agent into the thickener, the stirring tank is connected with the plate and frame filter press, and a filtrate outlet of the plate and frame filter press enters the receiving water body through a pipeline.
In the above scheme, the primary hydrocyclone and the secondary hydrocyclone each include two cyclones arranged side by side.
In the scheme, the screening particle size of the pre-screening is 60-100 mm.
In the scheme, the screening particle size of the drum screen is 2mm-60 mm.
In the scheme, the dividing point of the primary hydrocyclone is 20 μm, and the dividing point of the secondary hydrocyclone is 63 μm.
In the scheme, the sorting particle size of the fluidized bed sorting machine is 63 mu m-2 mm.
In the scheme, the dosing device is provided with two dosing tanks which are respectively used for dosing an anionic flocculant and a cationic flocculant.
The utility model also provides an utilize river lake bed mud stage treatment and resource utilization system's river lake bed mud treatment process, including following step:
(1) pumping the river and lake bottom mud by a cutter suction boat, passing through a pre-sieve, and entering a mud storage tank, and intercepting large-particle impurities to avoid blocking subsequent treatment equipment; pumping the bottom mud in the mud storage pool to a rotary screen for primary separation to obtain coarse-particle slag materials with the particle size of more than 20mm, gravel with the particle size of 2-20mm and a solid-liquid mixture, and recycling the gravel after collecting the gravel;
(2) pumping a solid-liquid mixture obtained by separation of a drum screen to a primary hydrocyclone for carrying out silt separation to obtain overflow slurry and underflow sand, further separating and separating the underflow sand in a fluidized bed separator to obtain sand and slurry with the particle size of 63 mu m-2mm, fully dehydrating the sand through a vibrating screen to obtain clean sand with the water content of 10-17%, and collecting and recycling the clean sand;
(3) the overflow of the first-stage hydrocyclone, the overflow of the fluidized bed separator and the underflow of the dewatering screen enter a second-stage hydrocyclone, mud with particle size less than 20 microns and fine sand part with particle size of 20-63 microns are obtained by separation, the fine sand part of the underflow enters a spiral chute to be further separated to obtain clean fine sand and mud, the fine sand is sent to a vacuum belt filter press to be dewatered to the water content of 15-17%, and the fine sand is collected and recycled;
(4) the secondary hydrocyclone, the overflow slurry of the spiral chute and the tail water of the vacuum belt enter a thickener, and an anion flocculating agent and a cation flocculating agent are continuously added to the upper part of the thickener through a dosing device; the flocculent mud at the bottom flow of the thickener enters a stirring tank to be mixed with mud liquid uniformly, and the mixed and stirred mud liquid is distributed to a plate-and-frame filter press to be dehydrated to obtain mud cakes with the particle size less than 20 mu m; the filtrate of the plate-and-frame filter press and the overflow water of the thickener are discharged into a receiving water body nearby or recycled in the process.
In the scheme, the water content of the river and lake bottom mud pumped by the cutter suction ship is more than 98%, the solid content of the underflow of the thickener is 200-250 g/L, and the solid content of the mud after dehydration of the plate-and-frame filter press is 55-60%.
In the scheme, the pre-screening slag materials with the size of more than 60mm are manually sorted and then sent to an incineration plant for centralized treatment, coarse particles with the size of more than 20mm and dehydrated mud cakes are used as filling materials or are externally transported and buried, and gravel, sand and fine sand are used as building raw materials.
Implement the utility model discloses a river lake bed mud stage treatment and utilization system has following beneficial effect:
1. the utility model discloses a separate, select separately, dehydration process has realized the categorised resource utilization of river lake bed mud to river lake bed mud, and sand material can be used to building raw materials, and the slag charge can be used to burn, and coarse grain and mud cake can be used to fill, accord with circular economy's theory.
2. The utility model discloses a minimizing handles river lake bed mud, makes the dehydration volume and the pollutant handling volume significantly reduced of river lake bed mud, has reduced the cost of outward transport processing, has practiced thrift the land resource that the landfill occupy, has reduced secondary pollution, has solved the difficult problem that river lake desilting high moisture content, high volume bed mud were handled.
3. The utility model discloses the modularization integration can be realized to technology, and full flow automatic control maintains fewly, and the operation effect is stable, practices thrift a large amount of manpower and materials.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
FIG. 1 is a schematic view of a system for treating bottom mud of rivers and lakes in a grading manner and recycling the mud;
FIG. 2 is a flow chart of the river and lake bottom mud stage treatment and resource utilization process of the utility model.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses river lake bed mud is hierarchical handles and resource utilization system includes: the device comprises a cutter suction boat 1, a pre-sieve 2, a sludge storage tank 3, a rotary screen 4, a primary hydrocyclone 5, a fluidized bed separator 6, a vibrating screen 7, a secondary hydrocyclone 8, a spiral chute 9, a vacuum belt filter press 10, a thickener 11, a dosing device 12, a stirring tank 13 and a plate and frame filter press 14.
The cutter suction dredger 1 sucks the bottom mud from rivers and lakes to the front of a screen of the pre-screen 2, the pre-screen 2 is arranged at an inlet of the mud storage tank 3, the mud storage tank 3 pumps the bottom mud to the rotary screen 4, and the rotary screen 4 is connected with an inlet of the primary hydrocyclone 5. The primary hydrocyclone 5 is composed of two cyclones arranged side by side, and the underflow outlet of the primary hydrocyclone 5 is connected with a fluidized bed separator 6. The overflow of the fluidized bed separator 6 is connected with the inlet of the second-stage hydrocyclone 8, the underflow outlet is connected with the vibrating screen 7, and the underflow outlet of the vibrating screen 7 is connected with the inlet of the second-stage hydrocyclone 8. The secondary hydrocyclone 8 is composed of two parallel cyclones, and the inlet of the secondary hydrocyclone 8 is respectively connected with the overflow of the primary hydrocyclone 5, the overflow outlet of the fluidized bed separator 6 and the underflow outlet of the vibrating screen 7. An overflow outlet of the secondary hydrocyclone 8 is connected with an inlet of a thickener 11, and an underflow outlet of the secondary hydrocyclone 8 is connected with a spiral chute 9. The light material outlet of the spiral chute 9 is connected with the thickener 11, the heavy material outlet of the spiral chute 9 is connected with the vacuum belt filter press 10, and the filtrate outlet of the vacuum belt filter press 10 is connected with the inlet of the secondary hydrocyclone 8. The upper part of the thickener 11 is connected with a dosing 12 device, the outlet at the bottom of the thickener 11 is connected with a stirring tank 13, and the overflow water of the thickener 11 enters into the storage water body through a pipeline. The dosing device 12 is used for quantitatively adding a flocculation reagent into the thickener 11, the stirring tank 13 is connected with the plate-and-frame filter press 14, and a filtrate outlet of the plate-and-frame filter press 14 is discharged into a receiving water body through a pipeline.
Furthermore, the screening particle size of the pre-screening can be adjusted between 60mm and 100mm according to the mud condition of different rivers and lakes. The pre-screening is used for intercepting large-particle sundries in bottom mud of rivers and lakes, mainly comprises disposable plastic products, branches, rags and the like, and can be conveyed to an incineration plant for centralized treatment together with household garbage after being manually sorted.
Furthermore, the screening particle size of the drum screen is 2mm-60mm, and the separation particle size of the drum screen can also be adjusted according to the screening particle size of the pre-screening.
Further, the primary and secondary hydrocyclones had cut points of 20 μm and 63 μm.
Further, the sorting particle size of the fluidized bed sorting machine is 63 mu m-2 mm.
Furthermore, the dosing device is provided with two dosing tanks, and an anionic flocculant and a cationic flocculant are respectively dosed.
The utility model also provides an utilize above-mentioned river lake bed mud stage treatment and resource utilization system's river lake bed mud processing technology, including following step:
(1) river and lake bottom mud is sucked by a cutter suction boat and is intercepted by a pre-sieve, the screening particle size of the pre-sieve is set to be 60mm, the pre-sieve is used for intercepting large-particle sundries in the river and lake bottom mud, the sundries are mainly disposable plastic products, branches, rags and the like, and the sundries and household garbage can be sent to an incineration plant for centralized treatment after being manually sorted. Most of bottom mud enters a mud storage pool through a pre-sieve, then the bottom mud in the mud storage pool is sucked to a drum sieve for primary separation, the sieving particle size of the drum sieve is set to be 2-60 mm, coarse-particle slag with the particle size of more than 20mm, 2-20mm gravel and a solid-liquid mixture are obtained after sieving, and the gravel can be recycled after being collected.
(2) And pumping the solid-liquid mixture obtained by the separation of the drum screen to a primary hydrocyclone for carrying out silt separation to obtain overflow slurry and underflow sand, further separating and separating the underflow sand in a fluidized bed separator to obtain sand and slurry with the particle size of 63 mu m-2mm, fully dehydrating the sand by a vibrating screen to obtain clean sand with the water content of 10-17%, and recycling the clean sand after collection.
(3) The overflow of the first-stage hydrocyclone, the overflow of the fluidized bed separator and the underflow of the dewatering screen enter a second-stage hydrocyclone to separate mud with particle size less than 20 microns and fine sand part with particle size of 20-63 microns, the fine sand part of the underflow enters a spiral chute to further separate clean fine sand and mud, and the fine sand is sent to a vacuum belt filter press to be dewatered to the water content of 15-17%, and can be recycled after being collected.
(4) And (4) enabling the secondary hydrocyclone, the overflow slurry of the spiral chute and the vacuum belt type tail water to enter a thickener, and continuously adding an anion flocculating agent and a cation flocculating agent into the upper part of the thickener through a dosing device. The flocculent mud at the bottom flow of the thickener enters a stirring tank to be mixed with mud liquid uniformly, and the mixed and stirred mud liquid is distributed to a plate-and-frame filter press to be dehydrated to obtain mud cakes with the particle size less than 20 mu m; the filtrate of the plate-and-frame filter press and the overflow water of the thickener are discharged into a receiving water body nearby or recycled in the process.
Furthermore, the water content of the river and lake bottom mud sucked by the suction dredger is more than 98%, the solid content of the underflow of the thickener is 200-250 g/L, and the solid content of the mud after dehydration by the plate-and-frame filter press is 55-60%.
Furthermore, the addition amount of anions and cations in the thickener can be adjusted according to the properties of the bottom mud so as to achieve the optimal flocculation effect.
Furthermore, the pre-screening slag materials with the particle size of more than 60mm are manually sorted and then sent to an incineration plant for centralized treatment, coarse particles with the particle size of more than 20mm and dehydrated mud cakes can be used as filling materials or externally transported and buried, and gravel, sand and fine sand can be used as building raw materials.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (7)
1. A river and lake bottom mud grading treatment and resource utilization system is characterized by comprising a cutter suction boat, a pre-screen, a mud storage pool, a drum screen, a primary hydrocyclone, a fluidized bed separator, a vibrating screen, a secondary hydrocyclone, a spiral chute, a vacuum belt filter press, a thickener, a dosing device, a stirring tank and a plate and frame filter press; the cutter suction boat pumps bottom mud from rivers and lakes to the front of a pre-screening sieve, the pre-screening sieve is arranged at an inlet of a mud storage tank, the bottom mud in the mud storage tank is pumped to a drum sieve, the drum sieve is connected with an inlet of a primary hydrocyclone, an underflow outlet of the primary hydrocyclone is connected with a fluidized bed separator, and an underflow outlet of the fluidized bed separator is connected with a vibrating screen; the inlet of the second-stage hydrocyclone is respectively connected with the overflow of the first-stage hydrocyclone, the overflow outlet of the fluidized bed separator and the underflow outlet of the vibrating screen, the overflow outlet of the second-stage hydrocyclone is connected with the inlet of the thickener, the underflow outlet of the second-stage hydrocyclone is connected with the spiral chute, the light material outlet of the spiral chute is connected with the thickener, the heavy material outlet of the spiral chute is connected with the vacuum belt filter press, the filtrate outlet of the vacuum belt filter press is connected with the inlet of the second-stage hydrocyclone, the upper part of the thickener is connected with a dosing device, the outlet at the bottom of the thickener is connected with the stirring tank, the overflow water of the thickener is discharged into a receiving water body through a pipeline, the dosing device is used for quantitatively adding a flocculating agent into the thickener, the stirring tank is connected with the plate and frame filter press, and a filtrate outlet of the plate and frame filter press enters the receiving water body through a pipeline.
2. The system for graded treatment and resource utilization of bottom mud of rivers and lakes according to claim 1, wherein the primary hydrocyclone and the secondary hydrocyclone each comprise two cyclones arranged side by side.
3. The system for classifying and recycling river and lake bottom mud as claimed in claim 1, wherein the pre-screening has a screening particle size of 60-100 mm.
4. The system for classifying and recycling river and lake bottom mud as claimed in claim 1, wherein the screening particle size of the drum screen is 2mm-60 mm.
5. The system for graded treatment and resource utilization of bottom mud of rivers and lakes according to claim 1, wherein the dividing point of the primary hydrocyclone is 20 μm, and the dividing point of the secondary hydrocyclone is 63 μm.
6. The system for classifying and recycling river and lake bottom mud as claimed in claim 1, wherein the fluidized bed separator has a separation particle size of 63 μm-2 mm.
7. The system for graded treatment and resource utilization of bottom mud of rivers and lakes according to claim 1, wherein the dosing device is provided with two dosing tanks for dosing an anionic flocculant and a cationic flocculant respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922265343.1U CN211570426U (en) | 2019-12-17 | 2019-12-17 | River and lake bottom mud grading treatment and resource utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922265343.1U CN211570426U (en) | 2019-12-17 | 2019-12-17 | River and lake bottom mud grading treatment and resource utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211570426U true CN211570426U (en) | 2020-09-25 |
Family
ID=72534592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922265343.1U Active CN211570426U (en) | 2019-12-17 | 2019-12-17 | River and lake bottom mud grading treatment and resource utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211570426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862212A (en) * | 2019-12-17 | 2020-03-06 | 湖北加德科技股份有限公司 | System and process for grading treatment and resource utilization of river and lake bottom mud |
-
2019
- 2019-12-17 CN CN201922265343.1U patent/CN211570426U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862212A (en) * | 2019-12-17 | 2020-03-06 | 湖北加德科技股份有限公司 | System and process for grading treatment and resource utilization of river and lake bottom mud |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110862212A (en) | System and process for grading treatment and resource utilization of river and lake bottom mud | |
| CN109794349B (en) | Underground coal dressing process | |
| CN110695064A (en) | Shield muck zero-discharge treatment system and method | |
| CN105000783B (en) | Pipe duct sludge reduction and innocent treatment technology and device | |
| CN101961674A (en) | Method for grading and utilizing waste material of sandstone system production | |
| CN104724893A (en) | Dredging and classified dewatering treatment method and system for sludge in urban river box culvert | |
| CN211100741U (en) | Shield muck zero-emission treatment system | |
| CN210450263U (en) | Earth pressure balance shield muck comprehensive treatment and resource ecological utilization system | |
| CN106277678A (en) | River bottom mud waterborne moveable processing system | |
| CN102357506A (en) | Method for wet treatment and resource utilization of household garbage | |
| CN108218181A (en) | A kind of river and lake pool gushes bed mud deep-graded processing system and method | |
| CN112007936A (en) | Muck resourceful treatment system | |
| CN110339937A (en) | A kind of waste incinerator residues processing technique | |
| CN211570426U (en) | River and lake bottom mud grading treatment and resource utilization system | |
| CN212387854U (en) | Shield constructs dregs mud-water separation system | |
| CN113501635A (en) | Environment-friendly dredging and curing modification integrated equipment for dredged sediment | |
| CN108409073A (en) | Ditch mud processing method | |
| CN216094218U (en) | Shield constructs on-spot dregs screening processing apparatus | |
| CN111719622A (en) | Novel cutter suction ship and amphibious bottom mud treatment platform | |
| CN104829073A (en) | Sludge treatment method and sludge treatment system | |
| CN215250467U (en) | Slurry shield muck treatment system | |
| CN113683274A (en) | System and method for ex-situ treatment of sludge in urban pipe gallery | |
| CN112983318B (en) | Treatment device and treatment method for drilling waste | |
| CN209378609U (en) | A kind of dry discharge cycle system of slurry environmental protection | |
| CN210252659U (en) | Portable municipal residue processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |