CN111468507A - Multistage separation resource treatment system for river bottom mud and residual sand - Google Patents

Multistage separation resource treatment system for river bottom mud and residual sand Download PDF

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Publication number
CN111468507A
CN111468507A CN202010291501.5A CN202010291501A CN111468507A CN 111468507 A CN111468507 A CN 111468507A CN 202010291501 A CN202010291501 A CN 202010291501A CN 111468507 A CN111468507 A CN 111468507A
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separation
residual sand
sand
stirring
residual
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CN111468507B (en
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张长平
葛延江
秦刚
陈祥
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PowerChina Harbour Co Ltd
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PowerChina Harbour Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D36/00Filter circuits or combinations of filters with other separating devices
    • B01D36/02Combinations of filters of different kinds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B1/00Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B7/00Elements of centrifuges
    • B04B7/08Rotary bowls
    • B04B7/18Rotary bowls formed or coated with sieving or filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B9/00Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/02Electric motor drives
    • B04B9/04Direct drive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00Accessories or details of general applicability for machines or apparatus for cleaning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02Cleaning by the force of jets or sprays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04Cleaning involving contact with liquid
    • B08B3/10Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00Operations not covered by a single other subclass or by a single other group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00Type of solid waste
    • B09B2101/02Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

The invention discloses a multistage separation and resource treatment system for river sediment and residual sand, and belongs to the technical field of hydraulic engineering. Through the arrangement of the screening meshes with different meshes on the multistage separation rotary drum, the residual sand with different particle sizes is separated, the separation effect is improved, then the washing element is utilized to respectively clean the residual sand with different particle sizes, and the drying element is utilized to respectively dry the residual sand with different particle sizes, so that the resource utilization of the residual sand with different particle sizes is met, the utilization rate of the residual sand is maximized, and the characteristics of energy conservation and environmental protection are met; the residual sand is repeatedly stirred and cleaned for multiple times through the cleaning cavities, so that various heavy metals, organic matters and the like in the residual sand can be fully removed, and the flushing effect and resource utilization of the residual sand are improved; the process disclosed by the invention can maximize the utilization rate of the residual sand, has the advantages of excellent separation effect, thorough cleaning, energy conservation and environmental friendliness, and is suitable for large-scale popularization.

Description

Multistage separation resource treatment system for river bottom mud and residual sand
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a multistage separation and resource treatment system for river sediment and residual sand.
Background
In recent years, the river pollution problem is more and more prominent in the urban development process, not only the sustainable development of the economic society is seriously restricted, but also the human survival is seriously threatened, and the method is a great challenge to the current urban ecological civilization construction. In recent 30 years, much effort has been paid to the treatment of black and odorous bottom mud in rivers at home and abroad, a great deal of research work is carried out, and the mud-sand separation technology is one of key technologies in bottom mud treatment operation and plays an important role in harmless treatment and resource utilization of bottom mud products.
The residual sand separated by the sand washing equipment can be used as foundation soil for sites, greening sites, commercial sites and public municipal sites, soil for roadbeds of general roads and grades, soil for backfilling grooves of municipal pipeline engineering, soil for dike drainage and reverse filtration, soil for land formation, soil for sponge city arrangement and the like. After the residual sand is further refined by the sand screening machine, the residual sand can be utilized in a grading way, the first-grade residual sand can be used as structural concrete aggregate, and the second-grade residual sand can be used as common concrete or building mortar aggregate.
Through treating the residual sand and performing resource utilization, a perfect disposal and reutilization mechanism of the polluted bottom mud can be gradually established, and the method has important significance for ecological environment protection and sustainable development of resource utilization, so that a set of economical, reasonable and applicable mud-sand separation process and scheme of the project is researched, and the method plays a very important role in future medium and small river treatment and lake ecological restoration attack and stiffness fighting.
The existing process for resource utilization of residual sand in river sediment has the following defects: 1) only the residual sand in the bottom sediment is separated, and the residual sand with different particle sizes cannot be separated independently, so that the recovery and utilization of different purposes are met, and the recovery and utilization rate of the residual sand cannot be maximized; 2) the residual sand can not be cleaned by cleaning fluid and clear water alternately, so that various heavy metals and organic matters can not be cleaned completely, or the residual cleaning fluid on the residual sand influences the utilization effect.
Disclosure of Invention
Aiming at the problems, the invention provides a multi-stage separation and resource treatment process for river sediment and residual sand, which has the advantages of excellent separation effect, thorough cleaning, energy conservation and environmental protection.
The invention provides a multistage separation and resource treatment system for residual sand of river bottom mud, which mainly comprises a garbage separation element for separating garbage in the river bottom mud, a stirring and uniformly mixing element for uniformly mixing river water and bottom mud, a centrifugal separation element, a residual sand separation element, a flushing element, a water quality treatment element and a power supply, wherein the centrifugal separation element is connected with the stirring and uniformly mixing element and is used for separating muddy water containing residual sand with different particle sizes after being uniformly mixed;
the centrifugal separation element comprises a separation main body and a vertical arrangement part, wherein a plurality of horizontal partition plates are sequentially arranged in the separation main body from top to bottom, the separation main body is internally provided with a plurality of multistage separation rotary drums which penetrate through the centers of the horizontal partition plates, and a driving motor is connected with the bottom end of the separation rotary drum through a rotating shaft, the sequentially arranged horizontal partition plates divide the interior of the separation main body into a plurality of storage cavities of which the outer walls are respectively provided with outlets, a plurality of filter plates are respectively arranged in the multistage separation rotary drums at the same horizontal plane with the horizontal partition plates and divide the interior of the multistage separation rotary drums into a plurality of separation cavities of which the outer walls are provided with screen meshes, the mesh number of the filter plates is larger than that of the separation cavities at the upper ends of the filter plates, the upper ends of the multistage separation rotary drums penetrate through the separation main body and extend to the exterior of the separation main body, the power supply is electrically connected with the driving motor.
Further, stirring mixing component include the upper end be equipped with mix entry stirring main part, vertical install in the stirring main part and the outer wall along the circumferencial direction evenly be equipped with a plurality of stirring paddle leaf the puddler, with agitator motor that the puddler is connected, lay in stirring main part inner wall and evenly be equipped with a plurality of spiral nozzle wash the pipeline, with wash the cleaning solution case that the pipeline passes through the suction pump and connects, every stirring paddle leaf one end is connected with the micro motor that is used for driving the stirring paddle leaf rotation, mixes river and bed mud mixing through stirring mixing component, and the follow-up surplus sand intensive separation to various particle sizes in the muddy water through centrifugal operation of convenience satisfies the resource utilization of different particle size surplus sand.
Further, every filter plate lower extreme symmetry is equipped with the semi-circular buffering baffler of two mutual butts, and one of them semi-circular buffering baffler is kept away from and is separated separation cavity one side and be equipped with magnet, and another semi-circular buffering baffler is close to magnet one side is equipped with solenoid, and two semi-circular buffering bafflers back of the body one side of the back of the body are articulated with separation cavity inner wall respectively, and semi-circular buffering baffler bottom through the spring post with separate separation cavity inner wall connection, when silt after the mixing is sorted at different separation cavities, through the mutual butt extension silt sorting time in different separation cavities of semi-circular buffering baffler, make the more thorough that the surplus sand of same particle size was selected separately in the silt, improve surplus sand recovery efficiency.
Further, surplus sand separating element includes inside be equipped with a plurality of respectively through the connecting pipe with deposit the separation cavity's that the cavity one-to-one is connected separation main part, locate folding sieve section of thick bamboo, through electric telescopic handle in the separation cavity with the flexible motor that folding sieve section of thick bamboo upper end is connected, every the separation cavity bottom all is equipped with sand outlet, just sand outlet department is equipped with the valve, and every separation cavity bottom is equipped with the delivery port, the delivery port is connected with the washing component, through folding sieve section of thick bamboo with the surplus sand and the mud-water separation of different particle sizes in the muddy water to discharge through sand outlet and carry out follow-up washing, separate through above-mentioned a plurality of folding sieve section of thick bamboos, improved solid-liquid separation's efficiency, save time.
Furthermore, the aperture of the side wall of the folding screen cylinder is smaller than the particle size of residual sand in muddy water in the folding screen cylinder, so that the water body is separated from the residual sand, and the separation efficiency is improved.
Furthermore, the washing element comprises a washing main body, a plurality of washing cavities, a plurality of stirring blades and a driving rotating motor, wherein the upper end of the washing main body is provided with a residual sand inlet and a washing liquid inlet, the lower end of the washing main body is provided with a first outlet and a second outlet, the washing main body is arranged in the washing main body, the stirring blades and the driving rotating motor are positioned in the washing cavities, the stirring blades and the driving rotating motor are used for driving the stirring blades to rotate, the washing liquid inlet is connected with an external washing liquid tank, the washing cavities are distributed in the washing main body from top to bottom, the washing cavity positioned at the uppermost end is respectively communicated with the residual sand inlet and the washing liquid inlet, the two adjacent washing cavities are in through connection, the washing cavity positioned at the lowermost end is respectively connected with the first outlet and the second outlet, a filter screen is arranged at the joint of the second outlet, the separated residual sand is added into the uppermost washing cavity through the residual sand inlet, and then the residual sand is respectively washed by sequentially passing through the two washing cavities at the lower end, and is repeatedly washed and stirred for multiple times in the above way, so that various heavy metals, organic matters and the like in the residual sand can be fully removed, and the washing effect and the resource utilization of the residual sand are improved.
Furthermore, still include the stoving component, the stoving component includes that the upper end is equipped with into sand mouth and lower extreme is equipped with the stoving section of thick bamboo of sand outlet, locates the steam outlet of stoving section of thick bamboo inner wall, the vertical axis of rotation, the drive of locating stoving section of thick bamboo center in the axis of rotation pivoted agitator motor two, vertically locate a plurality of stirring electric heating board that rotate epaxial along circumference, sand outlet department is equipped with the plugboard, dries the remaining sand after wasing through the stoving component, detaches remaining sand surface water stain, improves the stoving effect.
The working principle of the invention is as follows: when the process is used for resource treatment of the river sediment residual sand, the specific process is as follows:
(1) adding a proper amount of river water with bottom mud into a garbage separation element, wherein the garbage separation element can be an existing roller device, removing the bottom mud and solid garbage in the water, adding the river water with the bottom mud treated by the garbage separation element into a stirring main body through a mixing inlet, and stirring the mud and water;
(2) starting a first stirring motor, driving a plurality of stirring blades to rotate along the stirring rod by the first stirring motor, starting a micro motor, driving the corresponding stirring blades to rotate by the micro motor to enhance the stirring efficiency, and uniformly mixing the sediment and the river water;
(3) adding the uniformly mixed muddy water into a sorting rotary drum through a feeding port, firstly, electrifying an uppermost electromagnetic coil, sucking a corresponding magnet by the electromagnetic coil, sucking two semicircular buffer baffle plates and stopping the muddy water in an uppermost sorting cavity, meanwhile, starting a driving motor, driving the multistage sorting rotary drum to rotate by the driving motor, enabling the residual sand with small particle size in the muddy water to flow to a storage cavity at the uppermost end through a sieving net on the side wall of the uppermost sorting cavity, and finally, discharging the residual sand through an outlet;
(4) after the separation operation, the water bodies in the storage cavities enter the corresponding folding sieving cylinders through different connecting pipes, the telescopic motor is started, the telescopic motor drives the electric telescopic rod to upwards expand the folding sieving cylinders, and at the moment, the folding sieving cylinders separate the water bodies from the residual sand;
(5) adding the residual sand subjected to the separation operation into a cleaning cavity through a residual sand inlet, spraying cleaning liquid in an external cleaning liquid box into the cleaning cavity through a cleaning liquid inlet to clean the residual sand, starting a rotating motor, driving a stirring paddle to stir the cleaned residual sand by the rotating motor, then respectively cleaning the residual sand through two cleaning cavities at the lower end in sequence, repeatedly washing and stirring the residual sand for multiple times in the above mode, finally, discharging the water after cleaning the residual sand through a filter screen and an outlet II, and discharging the residual sand through an outlet I;
(6) adding the residual sand cleaned in the above mode into the drying cylinder through the sand inlet, starting the second stirring motor, driving the plurality of stirring electric heating plates on the rotating shaft to rotate to stir the residual sand, powering on the stirring electric heating plates, drying the residual sand by using heat energy generated by the stirring electric heating plates, taking out the plugboard after drying, and allowing the residual sand to flow out of the sand outlet for later use.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a multistage separation resource treatment system for residual sand of river sediment, which separates residual sand with different particle sizes through the arrangement of screens with different meshes on a multistage separation rotary drum, improves the separation effect, then utilizes a flushing element to respectively clean the residual sand with different particle sizes, and utilizes a drying element to respectively dry the residual sand with different particle sizes, so as to meet the resource utilization of the residual sand with different particle sizes, maximize the utilization rate of the residual sand, and meet the characteristics of energy conservation and environmental protection; the residual sand is repeatedly stirred and cleaned for multiple times through the cleaning cavities, so that various heavy metals, organic matters and the like in the residual sand can be fully removed, and the flushing effect and resource utilization of the residual sand are improved; the two semicircular buffer baffle plates which are mutually abutted are arranged at the lower end of the filter plate, when the electromagnetic coil is electrified, the separation cavities are isolated, the separation time of silt in different separation cavities is prolonged, the residual sand with the same particle size in the silt is more thoroughly separated, and the residual sand recovery efficiency is improved; the plurality of telescopic motors drive the electric telescopic rods to lift, so that the plurality of folding screening drums can be folded and unfolded at the same time, and residual sand with different particle sizes and a water body are separated at the same time, so that the solid-liquid separation efficiency is improved, and the time is saved; when the process disclosed by the invention is used for carrying out resource treatment on the river sediment residual sand, the utilization rate of the residual sand can be maximized, and the process has the advantages of excellent separation effect, thorough cleaning, energy conservation and environmental friendliness, and is suitable for large-scale popularization.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic diagram of the mixing element of the present invention;
FIG. 3 is a schematic diagram of the construction of a centrifugal sorting element of the present invention;
FIG. 4 is a schematic structural view of a residual sand separating element of the present invention;
FIG. 5 is an expanded view of a folded screen cylinder of the present invention;
FIG. 6 is a schematic view of the construction of the flushing member of the present invention;
fig. 7 is a schematic structural view of a drying element of the present invention.
Wherein, 1-garbage separation element, 2-stirring and uniformly mixing element, 20-stirring body, 200-mixing inlet, 21-stirring rod, 210-stirring blade, 211-micro motor, 22-stirring motor, 23-flushing pipeline, 230-spiral nozzle, 24-cleaning liquid tank, 3-centrifugal separation element, 30-separation body, 301-horizontal clapboard, 31-multistage separation drum, 310-filter plate, 311-separation cavity, 3110-screen, 312-feeding port, 313-semicircular buffer baffle plate, 3130-magnet, 3131-electromagnetic coil, 32-driving motor, 33-storage cavity, 330-outlet, 4-residual sand separation element, 40-separation body, 400-separation cavity, 400-centrifugal separation cavity, and the like, 401-sand outlet, 402-valve, 403-water outlet, 41-folding screen cylinder, 42-telescopic motor, 5-flushing element, 50-cleaning main body, 500-residual sand inlet, 501-cleaning liquid inlet, 502-outlet I, 503-outlet II, 51-cleaning cavity, 52-stirring paddle, 53-rotating motor, 54-filter screen, 6-water quality treatment element, 7-drying element, 70-drying cylinder, 700-sand inlet, 701-sand outlet, 71-steam outlet, 710-plugboard, 72-rotating shaft, 73-stirring motor and 74-stirring electric heating plate.
Detailed Description
Example 1: the multistage separation and resource treatment system for the residual sand of the river bottom mud as shown in fig. 1 mainly comprises a garbage separation element 1 for separating garbage in the river bottom mud, a stirring and uniformly mixing element 2 for uniformly mixing river water and bottom mud, a centrifugal separation element 3 which is connected with the stirring and uniformly mixing element 2 and is used for separating muddy water containing residual sand with different particle sizes after being uniformly mixed, a residual sand separation element 4 which is connected with the centrifugal separation element 3 and is used for separating residual sand from muddy water, a flushing element 5 which is connected with the residual sand separation element 4 and is used for removing impurities and flushing the separated residual sand, a water quality treatment element 6 which is connected with the residual sand separation element 4 and is used for treating a water body after residual sand separation, a drying element 7 and a power supply;
as shown in fig. 2, the stirring and mixing element 2 includes a stirring main body 20 having a mixing inlet 200 at an upper end, a stirring rod 21 vertically installed in the stirring main body 20 and having four stirring blades 210 on an outer wall thereof along a circumferential direction, a first stirring motor 22 connected to the stirring rod 21, a flushing pipe 23 laid on an inner wall of the stirring main body 20 and having eight spiral nozzles 230 thereon, and a cleaning solution tank 24 connected to the flushing pipe 23 via a water pump, wherein one end of each stirring blade 210 is connected to a micro motor 211 for driving the stirring blade 210 to rotate, and the stirring and mixing element 2 is used for uniformly mixing river water and bottom mud, so that residual sands with various particle sizes in the mud water can be sufficiently separated by centrifugal operation, and resource utilization of the residual sands with different particle sizes can be satisfied;
as shown in fig. 3, the centrifugal separation element 3 comprises a separation body 30 having three horizontal partition plates 301 arranged therein in sequence from top to bottom, a multi-stage separation drum 31 vertically arranged in the separation body 30 and passing through the centers of the three horizontal partition plates 301, a driving motor 32 connected to the bottom end of the separation drum 31 through a rotating shaft, the interior of the separation body 30 divided into three storage cavities 33 having outlets 330 on the outer side walls thereof by the sequentially arranged horizontal partition plates 301, two filter plates 310 respectively arranged in the multi-stage separation drum 31 and on the same horizontal plane with the horizontal partition plates 301, the interior of the multi-stage separation drum 31 divided into three separation cavities 311 having sieving screens 3110 on the outer walls thereof by the two filter plates 310, the mesh number of the filter plates 310 is larger than that of the sieving screens 3110 on the side walls of the separation cavities 311 at the upper ends thereof, the upper end of the multi-stage separation drum 31 passing through the separation body 30 and extending to, the outlet 330 is connected with the residual sand separating element 4 through a connecting pipe, the lower end of each filter plate 310 is symmetrically provided with two semicircular buffer baffle plates 313 which are mutually abutted, one side of one semicircular buffer baffle plate 313, which is far away from the separation cavity 311, is provided with a magnet 3130, one side of the other semicircular buffer baffle plate 313, which is close to the magnet 3130, is provided with an electromagnetic coil 3131, the opposite sides of the two semicircular buffer baffle plates 313 are respectively hinged with the inner wall of the separation cavity 311, the bottom ends of the semicircular buffer baffle plates 313 are connected with the inner wall of the separation cavity 311 through spring columns, when the uniformly mixed silt is separated in different separation cavities 311, the separation time of the silt in different separation cavities 211 is prolonged through mutual abutting of the semicircular buffer baffle plates 313, so that the residual sand with the same particle size in the silt is more thoroughly separated;
as shown in fig. 4 and 5, the remaining sand separating element 4 includes a separating body 40 having three separating cavities 400 therein, which are respectively connected with the storage cavities 33 through connecting pipes in a one-to-one correspondence manner, a folding screen cylinder 41 disposed in the separating cavity 400, and a telescopic motor 42 connected with the upper end of the folding screen cylinder 41 through an electric telescopic rod, the bottom end of each separating cavity 400 is provided with a sand outlet 401, a valve 402 is disposed at the sand outlet 401, the bottom end of each separating cavity 400 is provided with a water outlet 403, the water outlet 403 is connected with the washing element 5, the aperture of the side wall of the folding screen cylinder 41 is smaller than the particle size of the remaining sand in the muddy water, the water body is separated from the remaining sand, the separating efficiency is improved, the remaining sand with different particle sizes in the muddy water is separated from the muddy water through the folding screen cylinder 41, and is discharged through the sand outlet 401 for subsequent cleaning, the three folding screen cylinders 41 are used for separation, the solid-, time is saved;
as shown in fig. 6, the washing member 5 includes a washing main body 50 having a sand inlet 500 and a washing liquid inlet 501 at the upper end thereof and a first outlet 502 and a second outlet 503 at the lower end thereof, a plurality of washing chambers 51 disposed in the washing main body 50, a stirring blade 52 disposed in the washing chambers 51, and a rotating motor 53 for driving the stirring blade 52 to rotate, wherein the washing liquid inlet 501 is connected to an external washing liquid tank, the washing chambers 51 are distributed in the washing main body 50 from top to bottom, the washing chamber 51 disposed at the uppermost end is respectively communicated with the sand inlet 500 and the washing liquid inlet 501, two adjacent washing chambers 51 are connected through each other, the washing chamber 51 disposed at the lowermost end is respectively connected to the first outlet 502 and the second outlet 503, a filter screen 54 is disposed at the connection with the second outlet 503, separated sand is added into the uppermost washing chamber 51 through the sand inlet 500, and washing liquid is added into the uppermost washing chamber 51 through the washing liquid inlet 501, the stirring blades 52 are driven by the rotating motor 53 to stir the residual sand in the cleaning process, then the residual sand respectively passes through the two cleaning cavities 51 at the lower end to be cleaned, and the residual sand is repeatedly washed and stirred for multiple times in the above manner, so that various heavy metals, organic matters and the like in the residual sand can be fully removed, and the washing effect and the resource utilization of the residual sand are improved;
the power supply is electrically connected with the micro motor 211, the first stirring motor 22, the electromagnetic coil 3121, the driving motor 32, the telescopic motor 42 and the rotating motor 53, the types of the first stirring motor 22, the driving motor 32, the telescopic motor 42 and the rotating motor 53 are the same, specifically Y112M-4, the type of the micro motor 211 is 25GA-395-pc, and the type of the electromagnetic coil 3121 is R900021389.
When the process is used for resource treatment of the river sediment residual sand, the specific process is as follows:
(1) adding a proper amount of river water with bottom mud into the garbage separating element 1, wherein the garbage separating element 1 can be an existing roller device, removing the bottom mud and solid garbage in the water, and then adding the river water with the bottom mud treated by the garbage separating element 1 into the stirring main body 20 through the mixing inlet 200 for mud-water stirring treatment;
(2) starting a first stirring motor 22, wherein the first stirring motor 22 drives a plurality of stirring blades 210 to rotate along the stirring rod 21, and simultaneously, starting a micro motor 211, wherein the micro motor 211 drives the corresponding stirring blades 210 to rotate to enhance the stirring efficiency, and the bottom mud and the river water are uniformly mixed;
(3) the evenly mixed muddy water is added into the sorting rotary drum 31 through the feeding port 312, firstly, the electromagnetic coil 3131 at the uppermost end is electrified, the electromagnetic coil 3131 attracts the corresponding magnet 3130, the two semicircular buffer baffle plates 313 are attracted, and the muddy water stays in the sorting cavity 311 at the uppermost end, meanwhile, the driving motor 32 is started, the driving motor 32 drives the multi-stage separation rotary drum 31 to rotate, so that the residual sand with small particle size in the muddy water flows to the storage cavity 33 at the uppermost end through the sieving net 3110 on the side wall of the uppermost separation cavity 311, and finally flows out through the outlet 330, secondly, the electromagnetic coil 3131 at the uppermost end is powered off, under the action of the gravity of the muddy water, the two semicircular buffer baffle plates 313 at the uppermost end are separated, the muddy water which does not flow out of the screen 3110 enters the lower-layer separation cavity 311, and the muddy water containing the residual sand with different particle sizes is separated according to the separation mode;
(4) after the separation operation, the water in each storage cavity 33 enters the corresponding folding screen drum 41 through different connecting pipes, the telescopic motor 42 is started, the telescopic motor 42 drives the electric telescopic rod to upwards expand the folding screen drum 41, and at the moment, the folding screen drum 41 separates the water from the residual sand;
(5) adding the residual sand after the separation operation into the cleaning cavity 51 through the residual sand inlet 500, spraying cleaning liquid in an external cleaning liquid tank into the cleaning cavity 51 through the cleaning liquid inlet 501 to clean the residual sand, starting the rotating motor 53, driving the stirring blade 52 by the rotating motor 53 to stir the residual sand in cleaning, then respectively cleaning the residual sand through the two cleaning cavities 51 at the lower end in sequence, repeatedly washing and stirring the residual sand for multiple times in the above way, finally, allowing water after cleaning the residual sand to flow out through the filter screen 54 and the outlet II 503, and allowing the residual sand to flow out through the outlet I502;
(6) and (4) airing the residual sand cleaned in the above manner for later use.
Example 2: the multistage separation and resource treatment system for the residual sand of the river bottom mud as shown in fig. 1 mainly comprises a garbage separation element 1 for separating garbage in the river bottom mud, a stirring and uniformly mixing element 2 for uniformly mixing river water and bottom mud, a centrifugal separation element 3 which is connected with the stirring and uniformly mixing element 2 and is used for separating muddy water containing residual sand with different particle sizes after being uniformly mixed, a residual sand separation element 4 which is connected with the centrifugal separation element 3 and is used for separating residual sand from muddy water, a flushing element 5 which is connected with the residual sand separation element 4 and is used for removing impurities and flushing the separated residual sand, a water quality treatment element 6 which is connected with the residual sand separation element 4 and is used for treating a water body after residual sand separation, a drying element 7 and a power supply;
as shown in fig. 2, the stirring and mixing element 2 includes a stirring main body 20 having a mixing inlet 200 at an upper end, a stirring rod 21 vertically installed in the stirring main body 20 and having four stirring blades 210 on an outer wall thereof along a circumferential direction, a first stirring motor 22 connected to the stirring rod 21, a flushing pipe 23 laid on an inner wall of the stirring main body 20 and having eight spiral nozzles 230 thereon, and a cleaning solution tank 24 connected to the flushing pipe 23 via a water pump, wherein one end of each stirring blade 210 is connected to a micro motor 211 for driving the stirring blade 210 to rotate, and the stirring and mixing element 2 is used for uniformly mixing river water and bottom mud, so that residual sands with various particle sizes in the mud water can be sufficiently separated by centrifugal operation, and resource utilization of the residual sands with different particle sizes can be satisfied;
as shown in fig. 3, the centrifugal separation element 3 comprises a separation body 30 having three horizontal partition plates 301 arranged therein in sequence from top to bottom, a multi-stage separation drum 31 vertically arranged in the separation body 30 and passing through the centers of the three horizontal partition plates 301, a driving motor 32 connected to the bottom end of the separation drum 31 through a rotating shaft, the interior of the separation body 30 divided into three storage cavities 33 having outlets 330 on the outer side walls thereof by the sequentially arranged horizontal partition plates 301, two filter plates 310 respectively arranged in the multi-stage separation drum 31 and on the same horizontal plane with the horizontal partition plates 301, the interior of the multi-stage separation drum 31 divided into three separation cavities 311 having sieving screens 3110 on the outer walls thereof by the two filter plates 310, the mesh number of the filter plates 310 is larger than that of the sieving screens 3110 on the side walls of the separation cavities 311 at the upper ends thereof, the upper end of the multi-stage separation drum 31 passing through the separation body 30 and extending to, the outlet 330 is connected with the residual sand separating element 4 through a connecting pipe, the lower end of each filter plate 310 is symmetrically provided with two semicircular buffer baffle plates 313 which are mutually abutted, one side of one semicircular buffer baffle plate 313, which is far away from the separation cavity 311, is provided with a magnet 3130, one side of the other semicircular buffer baffle plate 313, which is close to the magnet 3130, is provided with an electromagnetic coil 3131, the opposite sides of the two semicircular buffer baffle plates 313 are respectively hinged with the inner wall of the separation cavity 311, the bottom ends of the semicircular buffer baffle plates 313 are connected with the inner wall of the separation cavity 311 through spring columns, when the uniformly mixed silt is separated in different separation cavities 311, the separation time of the silt in different separation cavities 211 is prolonged through mutual abutting of the semicircular buffer baffle plates 313, so that the residual sand with the same particle size in the silt is more thoroughly separated;
as shown in fig. 4 and 5, the remaining sand separating element 4 includes a separating body 40 having three separating cavities 400 therein, which are respectively connected with the storage cavities 33 through connecting pipes in a one-to-one correspondence manner, a folding screen cylinder 41 disposed in the separating cavity 400, and a telescopic motor 42 connected with the upper end of the folding screen cylinder 41 through an electric telescopic rod, the bottom end of each separating cavity 400 is provided with a sand outlet 401, a valve 402 is disposed at the sand outlet 401, the bottom end of each separating cavity 400 is provided with a water outlet 403, the water outlet 403 is connected with the washing element 5, the aperture of the side wall of the folding screen cylinder 41 is smaller than the particle size of the remaining sand in the muddy water, the water body is separated from the remaining sand, the separating efficiency is improved, the remaining sand with different particle sizes in the muddy water is separated from the muddy water through the folding screen cylinder 41, and is discharged through the sand outlet 401 for subsequent cleaning, the three folding screen cylinders 41 are used for separation, the solid-, time is saved;
as shown in fig. 6, the washing member 5 includes a washing main body 50 having a sand inlet 500 and a washing liquid inlet 501 at the upper end thereof and a first outlet 502 and a second outlet 503 at the lower end thereof, a plurality of washing chambers 51 disposed in the washing main body 50, a stirring blade 52 disposed in the washing chambers 51, and a rotating motor 53 for driving the stirring blade 52 to rotate, wherein the washing liquid inlet 501 is connected to an external washing liquid tank, the washing chambers 51 are distributed in the washing main body 50 from top to bottom, the washing chamber 51 disposed at the uppermost end is respectively communicated with the sand inlet 500 and the washing liquid inlet 501, two adjacent washing chambers 51 are connected through each other, the washing chamber 51 disposed at the lowermost end is respectively connected to the first outlet 502 and the second outlet 503, a filter screen 54 is disposed at the connection with the second outlet 503, separated sand is added into the uppermost washing chamber 51 through the sand inlet 500, and washing liquid is added into the uppermost washing chamber 51 through the washing liquid inlet 501, the stirring blades 52 are driven by the rotating motor 53 to stir the residual sand in the cleaning process, then the residual sand respectively passes through the two cleaning cavities 51 at the lower end to be cleaned, and the residual sand is repeatedly washed and stirred for multiple times in the above manner, so that various heavy metals, organic matters and the like in the residual sand can be fully removed, and the washing effect and the resource utilization of the residual sand are improved;
as shown in fig. 7, the drying element 7 includes a drying cylinder 70 having a sand inlet 700 at the upper end and a sand outlet 701 at the lower end, a steam outlet 71 disposed on the inner wall of the drying cylinder 70, a rotating shaft 72 vertically disposed at the center of the drying cylinder 70, a second stirring motor 73 driving the rotating shaft 72 to rotate, and four stirring electric heating plates 74 vertically disposed on the rotating shaft 72 along the circumferential direction, wherein an inserting plate 710 is disposed at the sand outlet 701, the cleaned residual sand is dried by the drying element 7, water stains on the surface of the residual sand are removed, and the drying effect is improved.
The power supply is electrically connected with the micro motor 211, the first stirring motor 22, the electromagnetic coil 3121, the driving motor 32, the telescopic motor 42, the rotating motor 53, the second stirring motor 73 and the stirring electric heating plate 74, the models of the first stirring motor 22, the driving motor 32, the telescopic motor 42, the rotating motor 53 and the second stirring motor 73 are the same, specifically Y112M-4, the model of the micro motor 211 is 25GA-395-pc, the model of the electromagnetic coil 3121 is R900021389, and the stirring electric heating plate 74 is made of iron-chromium-aluminum alloy.
When the process is used for resource treatment of the river sediment residual sand, the specific process is as follows:
(1) adding a proper amount of river water with bottom mud into the garbage separating element 1, wherein the garbage separating element 1 can be an existing roller device, removing the bottom mud and solid garbage in the water, and then adding the river water with the bottom mud treated by the garbage separating element 1 into the stirring main body 20 through the mixing inlet 200 for mud-water stirring treatment;
(2) starting a first stirring motor 22, wherein the first stirring motor 22 drives a plurality of stirring blades 210 to rotate along the stirring rod 21, and simultaneously, starting a micro motor 211, wherein the micro motor 211 drives the corresponding stirring blades 210 to rotate to enhance the stirring efficiency, and the bottom mud and the river water are uniformly mixed;
(3) the evenly mixed muddy water is added into the sorting rotary drum 31 through the feeding port 312, firstly, the electromagnetic coil 3131 at the uppermost end is electrified, the electromagnetic coil 3131 attracts the corresponding magnet 3130, the two semicircular buffer baffle plates 313 are attracted, and the muddy water stays in the sorting cavity 311 at the uppermost end, meanwhile, the driving motor 32 is started, the driving motor 32 drives the multi-stage separation rotary drum 31 to rotate, so that the residual sand with small particle size in the muddy water flows to the storage cavity 33 at the uppermost end through the sieving net 3110 on the side wall of the uppermost separation cavity 311, and finally flows out through the outlet 330, secondly, the electromagnetic coil 3131 at the uppermost end is powered off, under the action of the gravity of the muddy water, the two semicircular buffer baffle plates 313 at the uppermost end are separated, the muddy water which does not flow out of the screen 3110 enters the lower-layer separation cavity 311, and the muddy water containing the residual sand with different particle sizes is separated according to the separation mode;
(4) after the separation operation, the water in each storage cavity 33 enters the corresponding folding screen drum 41 through different connecting pipes, the telescopic motor 42 is started, the telescopic motor 42 drives the electric telescopic rod to upwards expand the folding screen drum 41, and at the moment, the folding screen drum 41 separates the water from the residual sand;
(5) adding the residual sand after the separation operation into the cleaning cavity 51 through the residual sand inlet 500, spraying cleaning liquid in an external cleaning liquid tank into the cleaning cavity 51 through the cleaning liquid inlet 501 to clean the residual sand, starting the rotating motor 53, driving the stirring blade 52 by the rotating motor 53 to stir the residual sand in cleaning, then respectively cleaning the residual sand through the two cleaning cavities 51 at the lower end in sequence, repeatedly washing and stirring the residual sand for multiple times in the above way, finally, allowing water after cleaning the residual sand to flow out through the filter screen 54 and the outlet II 503, and allowing the residual sand to flow out through the outlet I502;
(6) adding the residual sand cleaned in the above manner into the drying cylinder 70 through the sand inlet 700, starting the second stirring motor 73, driving the plurality of stirring electric heating plates 74 on the rotating shaft 72 to rotate by the second stirring motor 73 to stir the residual sand, simultaneously electrifying the stirring electric heating plates 74, drying the residual sand by utilizing the heat energy generated by the stirring electric heating plates 74, taking out the inserting plate 710 after drying is finished, and allowing the residual sand to flow out from the sand outlet 71 for later use.

Claims (6)

1. The multilevel separation and resource treatment system for the residual sand of the river bottom mud is characterized by mainly comprising a garbage separation element (1) for separating garbage in the river bottom mud, a stirring and uniformly mixing element (2) for uniformly mixing river water and bottom mud, a centrifugal separation element (3) which is connected with the stirring and uniformly mixing element (2) and is used for separating muddy water containing residual sand with different particle sizes after uniformly mixing, a residual sand separation element (4) which is connected with the centrifugal separation element (3) and is used for separating residual sand from muddy water, a flushing element (5) which is connected with the residual sand separation element (4) and is used for removing impurities and flushing the separated residual sand, a water quality treatment element (6) which is connected with the residual sand separation element (4) and is used for treating a water body after residual sand separation, and a power supply;
the centrifugal separation element (3) comprises a separation main body (30) which is internally provided with a plurality of horizontal partition plates (301) from top to bottom in sequence, a multi-stage separation rotary drum (31) which is vertically arranged in the separation main body (30) and penetrates through the centers of the horizontal partition plates (301), and a driving motor (32) which is connected with the bottom end of the separation rotary drum (31) through a rotating shaft, wherein the interior of the separation main body (30) is divided into a plurality of storage cavities (33) of which the outer side walls are respectively provided with outlets (330) by the sequentially arranged horizontal partition plates (301), a plurality of filter plates (310) are respectively arranged in the multi-stage separation rotary drum (31) and are positioned at the same horizontal plane with the horizontal partition plates (301), the interior of the multi-stage separation rotary drum (31) is divided into a plurality of separation cavities (311) of which the outer walls are provided with a sieve (3110), and the mesh number of the filter plates (310) is larger than that of the side walls of, multistage separation rotary drum (31) upper end is run through and is selected separately main part (30) and extend to and select separately main part (30) outside and be equipped with pan feeding mouth (312) be connected with stirring mixing component (2), export (330) are connected with surplus sand separating element (4) through the connecting pipe, power and driving motor (32) electric connection.
2. The multistage separation resource treatment system for the residual sand of the river bottom mud according to claim 1, characterized in that the stirring and uniformly mixing element (2) comprises a stirring main body (20) with a mixing inlet (200) at the upper end, a stirring rod (21) vertically installed in the stirring main body (20) and uniformly provided with a plurality of stirring blades (210) on the outer wall along the circumferential direction, a first stirring motor (22) connected with the stirring rod (21), a flushing pipeline (23) laid on the inner wall of the stirring main body (20) and uniformly provided with a plurality of spiral nozzles (230), and a cleaning liquid tank (24) connected with the flushing pipeline (23) through a water suction pump, wherein one end of each stirring blade (210) is connected with a micro motor (211) used for driving the stirring blade (210) to rotate.
3. The multilevel separation and resource treatment system for the river bottom mud and the residual sand according to claim 1, wherein two semicircular buffer baffle plates (313) which are mutually abutted are symmetrically arranged at the lower end of each filter plate (310), a magnet (3130) is arranged on one side, away from the separation cavity (311), of one semicircular buffer baffle plate (313), an electromagnetic coil (3131) is arranged on one side, close to the magnet (3130), of the other semicircular buffer baffle plate (313), the opposite sides of the two semicircular buffer baffle plates (313) are respectively hinged with the inner wall of the separation cavity (311), and the bottom ends of the semicircular buffer baffle plates (313) are connected with the inner wall of the separation cavity (311) through spring columns.
4. The multistage separation and resource treatment system for the residual sand of the river bottom mud according to claim 1, wherein the residual sand separation element (4) comprises a separation main body (40) which is internally provided with a plurality of separation cavities (400) which are respectively connected with the storage cavities (33) in a one-to-one correspondence manner through connecting pipes, a folding screen passing cylinder (41) arranged in the separation cavities (400), and a telescopic motor (42) connected with the upper end of the folding screen passing cylinder (41) through an electric telescopic rod, the bottom end of each separation cavity (400) is provided with a sand outlet (401), a valve (402) is arranged at the sand outlet (401), a water outlet (403) is arranged at the bottom end of each separation cavity (400), and the water outlet (403) is connected with a flushing element (5).
5. The multistage separation and resource treatment system for the residual sand of the river bottom mud as claimed in claim 4, wherein the pore diameter of the side wall of the folded screen cylinder (41) is smaller than the particle diameter of the residual sand in the muddy water contained in the folded screen cylinder.
6. The multilevel separation and resource treatment system for the river bottom mud and the residual sand according to claim 1, wherein the washing element (5) comprises a washing main body (50) provided with a residual sand inlet (500) and a cleaning liquid inlet (501) at the upper end and a first outlet (502) and a second outlet (503) at the lower end, a plurality of washing cavities (51) arranged in the washing main body (50), stirring blades (52) positioned in the washing cavities (51) and a rotating motor (53) driving the stirring blades (52) to rotate, the cleaning liquid inlet (501) is connected with an external cleaning liquid tank, the washing cavities (51) are distributed from top to bottom in the washing main body (50), the washing cavity (51) positioned at the uppermost end is respectively communicated with the residual sand inlet (500) and the cleaning liquid inlet (501), and two adjacent washing cavities (51) are communicated with each other, the cleaning cavity (51) positioned at the lowest end is respectively connected with the first outlet (502) and the second outlet (503), and a filter screen (54) is arranged at the joint of the cleaning cavity and the second outlet (503).
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