CN212610198U - Small-volume river and lake sludge intensive treatment system - Google Patents

Small-volume river and lake sludge intensive treatment system Download PDF

Info

Publication number
CN212610198U
CN212610198U CN202020999428.2U CN202020999428U CN212610198U CN 212610198 U CN212610198 U CN 212610198U CN 202020999428 U CN202020999428 U CN 202020999428U CN 212610198 U CN212610198 U CN 212610198U
Authority
CN
China
Prior art keywords
sludge
pipeline
mud
dewatering
screw pump
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
Application number
CN202020999428.2U
Other languages
Chinese (zh)
Inventor
王龙涛
陈文峰
冯先导
黄小龙
黄胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CCCC Second Harbor Engineering Co
Original Assignee
CCCC Second Harbor Engineering Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CCCC Second Harbor Engineering Co filed Critical CCCC Second Harbor Engineering Co
Priority to CN202020999428.2U priority Critical patent/CN212610198U/en
Application granted granted Critical
Publication of CN212610198U publication Critical patent/CN212610198U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a small-volume river and lake sludge intensive treatment system, a sludge screening system is connected with a sludge concentration and dehydration system through a first pipeline, and the first pipeline is sequentially connected with a first screw pump, a flocculant preparation device and a pipeline mixer; the mud concentration dewatering pool body is internally provided with a waterproof concentrated soil bag, a sludge dewatering soil bag and a drainage cushion layer in sequence from top to bottom, the waterproof concentrated soil bag and the sludge dewatering soil bag are connected through a second pipeline, a second screw pump is arranged on the second pipeline, the sludge dewatering soil bag penetrates through the wall of the mud concentration dewatering pool body through a third pipeline to be connected with a curing system, and a third screw pump is arranged on the third pipeline. The utility model discloses make muddy water in the little volume silt mud that the desilting engineering produced in succession, high-efficient separation outward transport or normal position deal with, and can greatly reduced running cost and shorten silt processing cycle.

Description

Small-volume river and lake sludge intensive treatment system
Technical Field
The utility model relates to an environmental engineering technical field. More specifically, the utility model relates to a little volume river lake silt intensive processing system.
Background
The sludge dredging engineering is the most important and effective means for solving the sludge siltation of rivers and lakes in modern times, can solve the problem of channel blockage, and can quickly remove endogenous pollution and reduce the water pollution load. The problem and challenge encountered in sludge dredging engineering is that the water content of sludge is high, and the sludge must be dewatered.
The traditional natural dehydration method for the sludge discharge field comprises the following steps: the method for treating the bottom mud of the river bank has simple technology and more occupied land, and is a common mode for domestic bottom mud treatment engineering (including Taihe bottom mud cleaning and treatment). However, the efficiency of the dehydration mode is very low, and the method for treating the polluted bottom mud by adopting the storage yard has certain environmental and safety hazards. Because the bottom mud in the storage yard is exposed and directly contacts with the surrounding environment, if the treatment of the residual water in the storage yard does not reach the standard, secondary pollution can be caused to the surrounding water body. The mechanical dehydration method comprises the following steps: the method has the advantages that organic pollution and heavy metal pollution bottom mud is treated, and although the dehydration effect is good, the method has the defects of high equipment one-time investment, power and energy consumption, workshop building and short treatment period due to the fact that the treatment capacity cannot meet the requirement of on-site treatment of the bottom mud in the river reservoir. At present, the earthwork pipe bag is widely applied to foreign polluted bottom mud dehydration engineering, such as Dian pond sludge dredging engineering, sand river sludge clearing engineering in Wuhan foreign countries, New Tianjin ecological city sewage reservoir treatment engineering in China and Taihe non-tin section sludge treatment engineering in China, and has good effect, but the problems of discontinuous treatment, relatively large occupied area and the like exist. The sludge solidification technology has huge dosage and high cost if dehydration treatment is not carried out.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that above-mentioned prior art exists, the utility model provides a little volume river lake silt intensive processing system, this system enable the muddy water in the little volume silt mud that the desilting engineering produced in succession, high-efficient separation outward transport or normal position deal with, and can greatly reduced running cost and shorten silt processing cycle.
To achieve these objects and other advantages in accordance with the purpose of the invention, as embodied and broadly described herein, there is provided a small volume river and lake sludge intensive treatment system comprising a sludge screening system, a sludge thickening and dewatering system, and a solidification system, which are connected in series;
the mud screening system is connected with the mud concentration and dehydration system through a first pipeline, and a first screw pump, a flocculating agent preparation device and a pipeline mixer are sequentially connected onto the first pipeline;
the mud thickening dewatering system includes: a slurry concentration dehydration tank body, a waterproof concentration soil engineering bag, a sludge dehydration soil engineering bag and a drainage cushion layer; the mud concentration dewatering pool is characterized in that a waterproof concentrated soil bag, a sludge dewatering soil bag and a drainage cushion layer are sequentially arranged in the mud concentration dewatering pool body from top to bottom, the waterproof concentrated soil bag and the sludge dewatering soil bag are connected through a second pipeline, a second screw pump is arranged on the second pipeline, the sludge dewatering soil bag penetrates through the wall of the mud concentration dewatering pool body through a third pipeline and is connected with the curing system, and a third screw pump is arranged on the third pipeline.
Preferably, the mud screening system comprises: the mud screening tank body and the vibrating screen arranged in the mud screening tank body.
Preferably, the curing system comprises a sludge dosing stirring tank and a dosing tank; the chemical adding tank is connected with the sludge chemical adding and stirring tank.
Preferably, the drainage mat layer is made of cobbles or gravels, and has a particle size of 32-64 mm and a thickness of 10-30 mm.
Preferably, the screw pump further comprises a control circuit, the control circuit comprises a first starting switch, a second starting switch, a third starting switch and a first time relay, a second time relay and a third time relay, the first starting switch, the second starting switch and the third starting switch respectively control the first screw pump, the second screw pump and the third screw pump to be started, and the first time relay, the second time relay and the third time relay are respectively used for setting the single working time of the first screw pump, the second screw pump and the third screw pump.
The utility model discloses at least, include following beneficial effect:
1. the system has two functions of sludge concentration and dehydration, and the design method further improves the utilization rate of the tank body. The whole structure is relatively compact and highly centralized, the occupied area is small, and the used equipment and devices are common equipment and devices, so that the manufacturing cost is relatively low.
2. The mud of the impervious concentrated geotechnological bag of upper strata in the concentrated dehydration cell body of mud in the system of this application utilizes the dead weight to further improve the dehydration efficiency of bottom silt dehydration geotechnological bag, and also has improved the dehydration efficiency of silt dehydration geotechnological bag through the preliminary concentration of first layer geotechnological bag, and both supplement each other.
3. The concentration system is combined with the later-stage curing treatment, so that the concentration and dehydration treatment time of the whole process can be reduced by more than 30 percent compared with the traditional geotextile bag process, and the construction period of the dredging project can be shortened better on the whole. Simultaneously the utility model discloses special concentrated system gets into the silt moisture content step-down of curing system, consequently offsets and directly adds to throw or tentatively concentrate and add to throw the curing agent, can make follow-up solidification medicament use amount significantly reduced, and the relative tradition of treatment cost solidification dehydration technology is lower.
4. Except the primary sludge screening system, the whole process of the subsequent dehydration by adopting a slurry concentration dehydration system is carried out in a closed way, so that compared with other traditional processes, the problems of secondary pollution of the atmosphere and the like are solved. After sludge dewatering tail water is filtered by the geotextile bags, pollutants such as SS and the like are greatly reduced, and secondary pollution of water is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a small-volume river and lake sludge intensive treatment system of the present invention;
the device comprises a mud screening system 1, a vibrating screen 1.1, a mud screening tank 1.2, a first pipeline 2, a first screw pump 3, a flocculant preparation device 4, a pipeline mixer 5, a second screw pump 6, a mud concentration and dehydration system 7, a mud concentration and dehydration tank 7.1, a water-tight concentrated geotextile bag 7.2, a mud dehydration geotextile bag 7.3, a drainage cushion 7.4, a second pipeline 7.5, a drainage pipe 7.6, a third pipeline 8, a chemical feeding and curing system 9.1, a third screw pump 9.2, a chemical feeding tank 9.3 and a mud chemical feeding and stirring tank 9.3.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can implement the invention with reference to the description.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1
As shown in figure 1, the intensive treatment system for the small-volume river and lake sludge comprises a sludge screening system 1, a sludge thickening and dewatering system 7 and a solidification system which are sequentially communicated.
Mud screening system 1 includes: a mud screening tank body 1.2 and a vibrating screen 1.1 arranged in the mud screening tank body 1.2. The vibrating screen 1.1 is fixed in the mud screening tank body 1.2 through a bracket or a bolt.
The mud screening system 1 is connected with the mud concentration and dehydration system 7 through a first pipeline 2, and the first pipeline 2 is sequentially connected with a first screw pump 3, a flocculating agent preparation device 4 and a pipeline mixer 5 according to the flow direction.
The slurry thickening and dewatering system 7 includes: a mud concentration dehydration pool body 7.1, a waterproof concentration soil engineering bag 7.2, a sludge dehydration soil engineering bag 7.3 and a drainage cushion layer 7.4. The drainage cushion layer 7.4 is composed of cobblestones or gravels, the particle size of the drainage cushion layer is 32-64 mm, and the thickness of the drainage cushion layer is 10-30 mm. The sludge concentrating and dehydrating tank body 7.1 is internally provided with a waterproof concentrated soil engineering bag 7.2, a sludge dehydrating soil engineering bag 7.3 and a drainage cushion layer 7.4 in sequence from top to bottom, the waterproof concentrated soil engineering bag 7.2 is connected with the sludge dehydrating soil engineering bag 7.3 through a second pipeline 7.5, the second pipeline 7.5 is provided with a second screw pump 6, the sludge dehydrating soil engineering bag 7.3 penetrates through the tank wall of the sludge concentrating and dehydrating tank body 7.1 through a third pipeline 8 to be connected with a curing system, and the third pipeline 8 is provided with a third screw pump 9.1.
The curing system comprises a sludge dosing stirring pool 9.3 and a dosing tank 9.2; the chemical adding tank 9.2 is connected with the sludge chemical adding stirring pool 9.3.
The control circuit comprises a first starting switch, a second starting switch, a third starting switch, a first time relay, a second time relay and a third time relay, wherein the first starting switch, the second starting switch and the third starting switch respectively control the first screw pump, the second screw pump and the third screw pump to be started, and the first time relay, the second time relay and the third time relay are respectively used for setting the single working time of the first screw pump, the second screw pump and the third screw pump. In this embodiment 1, the method for setting the time relay period of each screw pump is mainly as follows: the first screw pump time relay setting period is calculated according to the first screw pump flow, the volume of the impermeable sludge concentrated geotextile bag and the volume of the sludge dewatering geotextile bag [ namely (the volume of the sludge dewatering geotextile bag plus the impermeable sludge concentrated geotextile bag)/the first screw pump flow ]. And calculating the setting period of the third screw pump according to the setting period of the first screw pump time relay and the thickening time of the impermeable silt concentrated geotextile bag silt (namely the setting period of the first screw pump time relay and the thickening time of the silt concentrated geotextile bag silt). According to the time relay setting method, the sludge dewatering soil bags and the waterproof sludge concentrating soil bags are filled with slurry, after the slurry in the first layer of waterproof sludge soil bags is precipitated and concentrated under the action of the flocculating agent and the slurry in the second layer of sludge dewatering soil bags is compressed and concentrated for 3-5 hours, the three screw pumps are started simultaneously, the second screw pump continuously extracts the slurry precipitated at the bottoms of the waterproof sludge concentrating soil bags, and the slurry newly entering the waterproof sludge concentrating soil bags is also precipitated continuously, so that the sustainable operation of the whole system is realized, and the requirements of subsequent sludge transportation and treatment can be met quickly.
A treatment process based on the small-volume river and lake sludge intensive treatment system in example 1, comprising the following steps:
step one, when this system of first operation, mud passes through mud screening cell body 1.2 and shale shaker 1.1 of mud screening system 1 earlier, and vibration treatment large particle size granule through shale shaker 1.1 oscillation includes: shells, crushed stones, bricks, clods, coarse-grained sludge and the like which may influence the operation of the thickening and dewatering system are separated from the sludge slurry.
Step two, opening the first screw pump 3 and the second screw pump 6, closing the third screw pump 9.1, mixing the fine mud screened out by the mud screening system 1 with a flocculant flowing through the first pipeline 2, the first screw pump 3 and the flocculant preparation device 4, increasing the flocculation precipitation of the fine mud through the pipeline mixer 5, concentrating the soil bags through the waterproof sludge, and pumping the concentrated soil bags into a sludge dewatering soil bag 7.3;
step two, after the silt dewatering geotextile bags 7.3 are full, closing the second screw pump 6 and the third screw pump 9.1, continuously filling the impermeable concentrated geotextile bags 7.2, closing the first screw pump 3, and standing for 3-5 hours;
and step three, simultaneously opening the first screw pump 3, the second screw pump 6 and the third screw pump 9.1, setting the flow rates of the first screw pump 3, the second screw pump 6 and the third screw pump 9.1 to be the same, continuously operating, discharging sludge dewatering tail water in the slurry concentration and dewatering system 7 through a drainage cushion layer 7.4 and a drainage pipe 7.6, and directly transporting the sludge pumped into the solidification system after being stirred by the curing agent or carrying out in-situ treatment.
It should be noted that, although the last process in this embodiment refers to the use of a solidified agent stirring system, the process is fully capable of selecting other solidifying or dewatering systems, such as plate frame machines, various mechanical dewatering and other treatment methods, to meet the treatment requirements of dewatering different sludges and subsequent resource utilization according to the concentration and property of the slurry entering the system and the residence time of the slurry concentration treatment system. Therefore, various technical combinations taking the sludge thickening and dewatering system and the operation method as the core belong to the protection scope of the utility model.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields suitable for the invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and embodiments shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (5)

1. A small-volume river and lake sludge intensive treatment system is characterized by comprising a sludge screening system, a sludge concentration and dehydration system and a solidification system which are sequentially communicated;
the mud screening system is connected with the mud concentration and dehydration system through a first pipeline, and a first screw pump, a flocculating agent preparation device and a pipeline mixer are sequentially connected onto the first pipeline;
the mud thickening dewatering system includes: a slurry concentration dehydration tank body, a waterproof concentration soil engineering bag, a sludge dehydration soil engineering bag and a drainage cushion layer; the mud concentration dewatering pool is characterized in that a waterproof concentrated soil bag, a sludge dewatering soil bag and a drainage cushion layer are sequentially arranged in the mud concentration dewatering pool body from top to bottom, the waterproof concentrated soil bag and the sludge dewatering soil bag are connected through a second pipeline, a second screw pump is arranged on the second pipeline, the sludge dewatering soil bag penetrates through the wall of the mud concentration dewatering pool body through a third pipeline and is connected with the curing system, and a third screw pump is arranged on the third pipeline.
2. A small volume river or lake sludge intensive treatment system as claimed in claim 1 wherein said sludge screening system comprises: the mud screening tank body and the vibrating screen arranged in the mud screening tank body.
3. A small volume river and lake sludge intensive treatment system as claimed in claim 2 wherein said solidification system comprises a sludge dosing agitation tank and a dosing tank; the chemical adding tank is connected with the sludge chemical adding and stirring tank.
4. A small-volume intensive river and lake sludge treatment system as claimed in claim 1 or 3, wherein the drainage mat is made of cobblestones or gravels, and has a particle size of 32-64 mm and a thickness of 10-30 mm.
5. The intensive small-volume river and lake sludge treatment system as claimed in claim 1, further comprising a control circuit comprising first, second and third start switches and first, second and third time relays, wherein the first, second and third start switches respectively control the opening of the first, second and third screw pumps, and the first, second and third time relays are respectively used for setting the single working time of the first, second and third screw pumps.
CN202020999428.2U 2020-06-03 2020-06-03 Small-volume river and lake sludge intensive treatment system Active CN212610198U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020999428.2U CN212610198U (en) 2020-06-03 2020-06-03 Small-volume river and lake sludge intensive treatment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020999428.2U CN212610198U (en) 2020-06-03 2020-06-03 Small-volume river and lake sludge intensive treatment system

Publications (1)

Publication Number Publication Date
CN212610198U true CN212610198U (en) 2021-02-26

Family

ID=74722706

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020999428.2U Active CN212610198U (en) 2020-06-03 2020-06-03 Small-volume river and lake sludge intensive treatment system

Country Status (1)

Country Link
CN (1) CN212610198U (en)

Similar Documents

Publication Publication Date Title
CN103708703B (en) System and process for carrying out deep dehydration rapidly and resource utilization on construction slurry
CN101693590B (en) Heavy metal polluted sludge treatment method
CN103159391A (en) Sludge dewatering solidification treatment method
CN102249448B (en) System suitable for comprehensively treating bottom sediments in city inland river
CN205893034U (en) River sediment utilization system
CN106242239A (en) Polluted bed mud industrial treatment and regenerative system are gushed in lake, river
CN102583950A (en) Mobile contaminated bottom mud bag pocket dewatering and volume reduction treatment method
CN104030536B (en) A kind of environmental dredging bed mud integrated machine degree of depth anhydration system
CN105130141A (en) Continuous harmless treatment method and system for silt slurry
WO2020253797A1 (en) Integrated shore zone system for on-site treatment of river and lake sludge, and use therefof
CN106977073B (en) Ecological dredging integrated system
CN105776807B (en) Removable construction slurry scene rapid dewatering system and method
CN202016942U (en) Fast underwater sludge treatment device
CN103183458A (en) Processing method of heavy metal-contaminated sediment
CN203960024U (en) A kind of environmental dredging bed mud integrated machine degree of depth anhydration system
CN105461192A (en) Decentralized type rapid dewatering and residual water purification system and method for river bottom mud
CN212610198U (en) Small-volume river and lake sludge intensive treatment system
CN205443028U (en) High dehydration rate device of bed mud
CN104961270A (en) Agent vacuum pre-compression method for treating engineering waste slurry
CN106186639B (en) Gush native regenerative system more than polluted bed mud processing in river lake
CN102260032B (en) Sludge treatment method
CN107915392A (en) Small river sludge ecological treatment system in cities and towns
CN205347095U (en) Utilize magnetic flocculation technique rapidly transacting rainwater pumping drainage device
CN111285580A (en) Method for dehydrating and continuously repairing reinforced sludge geotechnical pipe bag
CN105692825A (en) Pumping station drainage device for fast processing rainwater by utilizing magnetic flocculation technology and processing method thereof

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant