CN115557655A - Treatment method and device for heavy metal polluted bottom mud in lake - Google Patents
Treatment method and device for heavy metal polluted bottom mud in lake Download PDFInfo
- Publication number
- CN115557655A CN115557655A CN202210285991.7A CN202210285991A CN115557655A CN 115557655 A CN115557655 A CN 115557655A CN 202210285991 A CN202210285991 A CN 202210285991A CN 115557655 A CN115557655 A CN 115557655A
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- heavy metal
- metal polluted
- sediment
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- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012216 screening Methods 0.000 claims abstract description 71
- 239000004575 stone Substances 0.000 claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 239000004576 sand Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000013049 sediment Substances 0.000 claims description 32
- 239000002002 slurry Substances 0.000 claims description 29
- 230000007306 turnover Effects 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 15
- 239000004744 fabric Substances 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000011148 porous material Substances 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
Abstract
The invention relates to the technical field of pollution treatment, in particular to a method and a device for treating lake heavy metal pollution bottom mud, wherein the device for treating lake heavy metal pollution bottom mud comprises a hull, a screening box, a first screen, a second screen, a third screen and an anti-blocking component, the anti-blocking component comprises a lifting frame, a first motor, an overturning rod, an overturning plate and a convex column, the first motor is started to drive the overturning rod to rotate, so that the overturning plate rotates 90 degrees, the convex column is aligned with a sieve pore of the first screen, the lifting frame drives the overturning plate to integrally move upwards to enable the convex column to penetrate through the sieve pore, crushed stones clamped in the sieve pore are jacked up and slide out of the screening box, after the crushed stones are cleaned, the overturning plate is restored to the original position, and the effect of automatically cleaning the first screen is achieved through the first motor and the lifting frame.
Description
Technical Field
The invention relates to the technical field of pollution treatment, in particular to a method and a device for treating lake heavy metal polluted bottom mud.
Background
Heavy metal in the lake sediment is the main pollutant, and gets into the water easily, arouses secondary pollution, and the clearance of most pollution sediment at present carries out the desilting through the dredger earlier, dewaters silt again, and the addition chemical carries out innocent treatment, and because contains a large amount of rubbles in the silt, the dehydration time is often longer, leads to cleaning efficiency low.
Current processing apparatus of river course lake heavy metal pollution bed mud, including screening barrel and sludge dewaterer, the upper portion of screening barrel is equipped with the bed mud import, and the bottom surface of screening barrel and sludge dewaterer's feed inlet intercommunication have set gradually rubble screening net, coarse sand screening net and fine sand screening net from last to down in the screening barrel, utilize gravity to sieve from top to bottom, separate rubble and coarse sand, alleviateed dehydration pressure, processing cycle shortens.
However, since the sieve is screened by gravity, the broken stones with irregular shapes can block the sieve pores, and the screening effect is poor after the crushed stones are used for a long time.
Disclosure of Invention
The invention aims to provide a treatment device for heavy metal polluted bottom mud in lakes, which solves the technical problem that due to the fact that screening is carried out by means of gravity, broken stones with irregular shapes can block screen holes, and screening effect is poor due to long-time use.
In order to achieve the purpose, the invention provides a treatment device for heavy metal polluted sediment in lakes, which comprises a hull, a screening box, a first screen, a second screen and a third screen, wherein the screening box is arranged above the hull, the first screen, the second screen and the third screen are sequentially arranged in the screening box from top to bottom, and the bottom of the screening box is provided with a fine sand storage box and an anti-blocking assembly; prevent stifled subassembly includes crane, first motor, upset pole, returning face plate and projection, the crane set up in the lateral wall of screening case, first motor with crane fixed connection, and be located the inside of screening case, the upset pole set up in first screen cloth with between the second screen cloth, the one end of upset pole is passed the screening case with the crane rotates to be connected, the other end of upset pole with the output of first motor rotates to be connected, the returning face plate with upset pole fixed connection, and be located the top of upset pole, the top interval of returning face plate evenly is provided with a plurality of projections.
Wherein, prevent stifled subassembly still includes the cleaning unit, the cleaning unit set up in the inside of screening case, and be located the top of first screen cloth.
The lifting frame comprises two first cylinders, lifting rods and guide rods, the number of the first cylinders is two, the two first cylinders are respectively arranged on the two opposite sides of the screening box, each output end of the first cylinders is provided with the lifting rods, the two opposite sides of the screening box are respectively provided with guide grooves, the number of the guide rods is two, the two guide rods respectively penetrate through the corresponding guide grooves and respectively correspond to the lifting rods fixedly connected, the first motor is fixedly connected with the corresponding guide rods, and the overturning rods are rotatably connected with the other guide rods.
Each convex column comprises a bottom column, a spherical sleeve and a sharp nail, the bottom column is fixedly connected with the turnover plate and is located above the turnover plate, the spherical sleeve is arranged on the outer side wall of the bottom column, and the sharp nail is fixedly connected with the bottom column and is located above the bottom column.
The cleaning unit comprises a movable screw rod, a water pump, a water distribution pipe and a connecting hose, the water pump is arranged on the outer side of the screening box, the movable screw rod is arranged inside the screening box and is located above the first screen, the water distribution pipe is movably connected with the output end of the movable screw rod, one end of the connecting hose is communicated with the water pump, the other end of the connecting hose is communicated with the water distribution pipe, and a plurality of water spray holes are uniformly formed in the bottom of the water distribution pipe at intervals.
The processing device of the heavy metal polluted bottom sediment in the lake further comprises a dredging component, and the dredging component is arranged at one end of the ship body.
The dredging assembly comprises a first slurry pump, a bottom plate, an anchor windlass, an adjusting frame, a slurry inlet pipeline and a dredging drill bit, wherein the bottom plate is arranged at one end of the ship body, the anchor windlass is arranged above the bottom plate, the adjusting frame is slidably connected with the bottom plate and is positioned below the bottom plate, a chain of the anchor windlass is fixedly connected with the adjusting frame, the dredging drill bit is arranged at the bottom of the adjusting frame, one end of the first slurry pump is connected with a top pipeline of the screening box, the other end of the first slurry pump is fixedly connected with the dredging drill bit through the slurry inlet pipeline, and the slurry inlet pipeline is fixedly connected with the adjusting frame.
The adjusting frame comprises a sliding arm and a bending arm, the sliding arm is connected with the bottom plate in a sliding mode and located below the bottom plate, and the bending arm is connected with the bottom of the sliding arm in a rotating mode.
The invention also provides a treatment method of the lake heavy metal polluted bottom mud, and the treatment device of the lake heavy metal polluted bottom mud comprises the following steps:
the ship body runs in a lake according to an S-shaped route, the adjusting frame is adjusted downwards by the anchor lifter, and the excavating drill bit is made to contact the bottom of the lake;
starting the first slurry pump and the excavating drill bit, excavating the lake sediment into the screening box, and screening the first slurry pump into broken stones, coarse sand and fine sand;
during excavation, the broken stones are sent back to the bottom of the lake again, coarse sand and cement materials are mixed, and the mixture is laid above the broken stones;
in the running process of the ship body, the anti-blocking assembly is started regularly to clean the first screen, the first slurry pump and the excavating drill stop working during cleaning, and the ship body continues to run after cleaning is completed.
According to the treatment device for the heavy metal polluted sediment in the lake, when the anti-blocking assembly works, the first motor is started to drive the turnover rod to rotate, so that the turnover plate rotates by 90 degrees, the convex column is aligned with the sieve mesh of the first sieve mesh, the lifting frame drives the turnover plate to move upwards integrally, the convex column penetrates through the sieve mesh, crushed stones clamped in the sieve mesh are jacked up and slide out of the screening box, and after the crushed stones are cleaned, the turnover plate is restored to the original position by the first motor and the lifting frame.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is an overall sectional view of a first embodiment of the present invention.
Fig. 2 is a partially enlarged view of a first embodiment of the present invention at a.
Fig. 3 is a sectional view of a crane according to a first embodiment of the present invention.
Fig. 4 is an overall sectional view of a second embodiment of the present invention.
Fig. 5 is an overall sectional view of a third embodiment of the present invention.
Fig. 6 is a sectional view of a fixed pipe according to a third embodiment of the present invention.
Fig. 7 is a sectional view of a stirring tank of a third embodiment of the present invention.
FIG. 8 is a flow chart of the steps of the treatment method of the heavy metal polluted bottom mud in the lake.
101-hull, 102-screening box, 103-first screen, 104-second screen, 105-third screen, 106-fine sand storage box, 107-lifting frame, 108-first motor, 109-turning rod, 110-turning plate, 111-convex column, 112-first cylinder, 113-lifting rod, 114-guide rod, 115-guide groove, 116-bottom column, 117-spherical sleeve, 118-tip nail, 119-movable screw rod, 120-water pump, 121-water distribution pipe, 122-connecting hose, 123-water spray hole, 201-first slurry pump, 202-bottom plate, 203-anchor lifter, 204-adjusting frame, 205-mud inlet pipeline, 206-digging drill bit, 207-sliding arm, 208-bending arm, 301-middle turning cavity, 302-second motor, 303-rotating filter plate, 304-pressure sensor, 305-fixed pipeline, 306-stirring tank, 307-broken stone discharge pipe, 308-coarse sand discharge pipe, 309-second telescopic arm, 310-telescopic pipe, 310-middle turning cavity, 302-second motor, 303-third motor, 315-cutting blade, 315-feeding rod, and feeding rod.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, and the embodiments described below with reference to the accompanying drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention.
The first embodiment of the present application is:
referring to fig. 1 to 3, the anti-blocking boat comprises a boat body 101, a screening box 102, a first screen 103, a second screen 104 and a third screen 105, wherein the screening box 102 is arranged above the boat body 101, the first screen 103, the second screen 104 and the third screen 105 are sequentially arranged inside the screening box 102 from top to bottom, and the bottom of the screening box 102 is provided with a fine sand storage tank 106 and an anti-blocking assembly; prevent stifled subassembly includes crane 107, first motor 108, upset pole 109, upset board 110 and projection 111, crane 107 set up in the lateral wall of screening case 102, first motor 108 with crane 107 fixed connection, and be located the inside of screening case 102, upset pole 109 set up in first screen cloth 103 with between the second screen cloth 104, the one end of upset pole 109 is passed screening case 102 with crane 107 rotates to be connected, the other end of upset pole 109 with the output of first motor 108 rotates to be connected, upset board 110 with upset pole 109 fixed connection, and be located upset pole 109's top, upset board 110's top interval evenly is provided with a plurality of projections 111.
The anti-blocking assembly further comprises a cleaning unit, wherein the cleaning unit is arranged inside the screening box 102 and is positioned above the first screen 103; the lifting frame 107 comprises first air cylinders 112, lifting rods 113 and guide rods 114, the number of the first air cylinders 112 is two, the two first air cylinders 112 are respectively arranged at two opposite sides of the screening box 102, the output end of each first air cylinder 112 is provided with the lifting rod 113, two opposite sides of the screening box 102 are respectively provided with guide grooves 115, the number of the guide rods 114 is two, the two guide rods 114 respectively penetrate through the corresponding guide grooves 115 and are respectively and fixedly connected with the corresponding lifting rods 113, the first motor 108 is fixedly connected with one of the guide rods 114, and the turnover rod 109 is rotatably connected with the other guide rod 114; each convex column 111 comprises a bottom column 116, a spherical sleeve 117 and a sharp nail 118, the bottom column 116 is fixedly connected with the turnover plate 110 and is positioned above the turnover plate 110, the spherical sleeve 117 is arranged on the outer side wall of the bottom column 116, and the sharp nail 118 is fixedly connected with the bottom column 116 and is positioned above the bottom column 116; the cleaning unit comprises a movable screw rod 119, a water pump 120, a water distribution pipe 121 and a connecting hose 122, the water pump 120 is arranged outside the screening box 102, the movable screw rod 119 is arranged inside the screening box 102 and is positioned above the first screen 103, the water distribution pipe 121 is movably connected with the output end of the movable screw rod 119, one end of the connecting hose 122 is communicated with the water pump 120, the other end of the connecting hose 122 is communicated with the water distribution pipe 121, and a plurality of water spray holes 123 are uniformly arranged at the bottom of the water distribution pipe 121 at intervals.
In the using process, the ship body 101 runs in a lake, lake sediment is fed into the screening box 102, the sediment sequentially passes through the first screen 103, the second screen 104 and the third screen 105 due to gravity, the sediment is screened into gravels, coarse sand and fine sand, the first screen 103 and the second screen 104 are both provided with outlets, the separated gravels and coarse sand slide out along the corresponding outlets, when the anti-blocking component is used, the first motor 108 is started to drive the turnover rod 109 to rotate, so that the turnover plate 110 rotates 90 degrees, the convex column 111 is aligned with the sieve pores of the first screen 103, the lifting frame 107 drives the turnover plate 110 to integrally move upwards, so that the convex column 111 passes through the sieve pores, the gravels clamped in the sieve pores are jacked up and slide out of the screening box 102, after the cleaning of the gravels is completed, the first motor 108 and the lifting frame 107 restore the turnover plate 110 to the original position, and through the structure, the cleaning of the first screen 103 is automatically completed, and the first screen 103 is prevented from being blocked.
The cleaning unit and the lifting frame 107 work simultaneously, and can clean the broken stones clamped on the first screen 103, wash out coarse sand and fine sand adhered to the surfaces of the broken stones, and prevent the coarse sand and the fine sand from being discharged out of the screening box 102 along with the broken stones.
The first air cylinders 112 on the two sides simultaneously reciprocate up and down to drive the lifting rod 113 and the guide rod 114 to move, and the guide rod 114 moves along the guide groove 115 to drive the turnover rod 109 to move up and down, so that the convex column 111 reciprocates up and down to pass through the screen for many times, and the cleaning effect of the broken stones is improved.
When the cleaning unit is used, water in a lake is extracted through the water pump 120, the water is transmitted to the water distribution pipe 121 through the connecting hose 122 and is sprayed out through the plurality of water spraying holes 123, the movable screw rod 119 drives the water distribution pipe 121 to move back and forth, the first screen 103 is uniformly washed, coarse sand and fine sand on the surface of broken stones can be taken away, and the cleaning effect is improved.
The second embodiment of the present application is:
referring to fig. 4, on the basis of the first embodiment, the device for treating heavy metal polluted bottom sediment in a lake of this embodiment further includes a dredging component, and the dredging component is disposed at one end of the hull 101; the dredging assembly comprises a first slurry pump 201, a bottom plate 202, an anchor lifter 203, an adjusting frame 204, a slurry inlet pipeline 205 and a dredging drill bit 206, wherein the bottom plate 202 is arranged at one end of the ship body 101, the anchor lifter 203 is arranged above the bottom plate 202, the adjusting frame 204 is connected with the bottom plate 202 in a sliding mode and is positioned below the bottom plate 202, a chain of the anchor lifter 203 is fixedly connected with the adjusting frame 204, the dredging drill bit 206 is arranged at the bottom of the adjusting frame 204, one end of the first slurry pump 201 is connected with a top pipeline of the screening box 102, the other end of the first slurry pump 201 is connected with the dredging drill bit 206 through the slurry inlet pipeline 205, and the slurry inlet pipeline 205 is fixedly connected with the adjusting frame 204; the adjusting bracket 204 comprises a sliding arm 207 and a bending arm 208, the sliding arm 207 is slidably connected with the base plate 202 and is positioned below the base plate 202, and the bending arm 208 is rotatably connected with the bottom of the sliding arm 207.
Before the excavating bit 206 works, the anchor machine 203 is used for lowering the adjusting frame 204, so that the excavating bit 206 contacts with the lake bottom, when the excavating bit 206 works, the spiral blade is used for sending bottom mud into the mud inlet pipeline 205, the first mud pump 201 provides suction force, so that the bottom mud is sent to the screening box 102, after the excavating bit 206 works, the anchor machine 203 rolls up a chain, and the excavating bit 206 is stored through the adjusting frame 204, so that the ship body 101 can run subsequently.
When the bending arm 208 is in a storage state, the bending arm is limited by the base plate 202 and is parallel to the sliding arm 207, when the chain of the anchor machine 203 is lowered, the bending arm 208 slides out of the base plate 202 and is not limited by the base plate 202 any more, the downward overturning is started until the excavating bit 206 contacts the lake bottom, and the depth of the excavating bit 206 can be controlled through the chain of the anchor machine 203, so that the device is suitable for lakes with various depths.
The third embodiment of the present application is:
referring to fig. 5 to 7, on the basis of the second embodiment, a transfer chamber 301 is disposed at the top end of the screening box 102, a determination component is disposed at the top end of the transfer chamber 301, the determination component includes a fixed pipe 305, a second motor 302, a rotating filter plate 303 and a pressure sensor 304, the fixed pipe 305 is disposed at the top end of the screening box 102, the fixed pipe 305 is connected to the first slurry pump 201, the second motor 302 is disposed on the outer side wall of the fixed pipe 305, an output shaft of the second motor 302 penetrates through the fixed pipe 305, the rotating filter plate 303 is fixedly connected to an output shaft of the second motor 302 and is located inside the fixed pipe 305, the pressure sensor 304 is disposed above the rotating filter plate 303, and the transfer chamber 301 is connected to the fine sand storage box 106 and is provided with a valve.
The paving component is arranged on one side of the screening box 102 and comprises a stirring tank 306, a gravel discharge pipe 307, a coarse sand discharge pipe 308, a second mud pump 309 and an extension pipe 310, the stirring tank 306 is arranged on one side of the screening box 102, the coarse sand treatment pipe is arranged at the bottom of the second screen cloth 104 and is positioned above the extension stirring tank 306, one end of the second mud pump 309 is connected with a bottom pipeline of the stirring tank 306, the other end of the second mud pump 309 is connected with the extension pipe 310 through a pipeline, one end of the gravel discharge pipe 307 is arranged at the bottom of the first screen cloth 103, and the other end of the gravel discharge pipe 307 is communicated with the extension pipe 310.
The stirring tank 306 comprises a tank body 311, a third motor 312, a stirring rod 313, cutting edges 314 and a feeding pipe 315, the tank body 311 is arranged on one side of the screening box 102, the third motor 312 is arranged at the bottom of the tank body 311, the stirring rod 313 is fixedly connected with an output shaft of the third motor 312 and is positioned inside the tank body 311, a plurality of cutting edges 314 are arranged on the outer side wall of the stirring rod 313 in a staggered mode, and the feeding pipe 315 is arranged at the top end of the tank body 311.
Sediment quilt the subassembly of dredging sends to behind the screening case 102, pass through earlier fixed pipeline 305, in the fixed pipeline 305 rotate the filter plate 303 and carry out prefiltration to the sediment, when not having a large amount of coarse sand and rubble in the sediment, it can not take place to block up to rotate filter plate 303, sediment in the transfer chamber 301 passes through the pump body and sends to in the fine sand storage box 106, when having a large amount of coarse sand and rubble in the sediment, it blocks up to rotate filter plate 303, the pressure that rotates filter plate 303 and bear grow gradually, pressure sensor 304's numerical value reaches behind the default, second motor 302 starts, makes rotate filter plate 303 upset 90, and will sediment in the transfer chamber 301 send to the top of first screen cloth 103, rotate filter plate 303 and rotate many times, can be to throwing away the blanking plug, the next judgement of being convenient for, through judge the subassembly, reduce unnecessary screening, improve screening efficiency.
The crushed stone screened by the crushed stone discharging pipe 307 is directly sent to the shrinkage pipe, according to the driving direction of the ship body 101, the bottom pipe opening of the shrinkage pipe is positioned behind the excavating drill bit 206, the crushed stone is laid on the excavated route again, the coarse sand discharging pipe 308 guides coarse sand into the stirring pipe, cement gel and iron tailings are added for mixing, the mixture is sent to the lake bottom where the crushed stone is laid by the second mud pump 309, a sealing surface is formed after solidification, bottom mud is prevented from floating upwards, and heavy metals are absorbed by the iron tailings, so that the treatment effect is improved.
The cement gel and the iron tailings are added through the feeding pipe 315, the stirring rod 313 is driven to rotate through the third motor 312, and the cutting edges 314 are arranged in a staggered mode, so that the mixing effect of coarse sand, the cement gel and the iron tailings is improved.
Referring to fig. 8, the invention further provides a treatment method of the lake heavy metal polluted bottom sediment, and the treatment device of the lake heavy metal polluted bottom sediment comprises the following steps:
s1: the hull 101 travels in a lake in an S-shaped route, and the adjusting bracket 204 is lowered down by the anchor machine 203 so that the excavating bit 206 contacts the bottom of the lake;
s2: starting the first slurry pump 201 and the excavating drill bit 206, excavating the lake sediment into the screening box 102, and screening the first slurry pump 201 into crushed stone, coarse sand and fine sand;
s3: during excavation, the broken stones are sent back to the bottom of the lake again, coarse sand and cement materials are mixed, and the mixture is laid above the broken stones;
s4: in the running process of the ship body, the anti-blocking component is periodically started to clean the first screen 103, the first slurry pump 201 and the excavating drill 206 stop working during cleaning, and the ship body continues to run after cleaning is finished.
In the present embodiment, the sediment is screened to discharge crushed stones and coarse sand, and the coarse sand is mixed with the cement raw material and sent to the lake bottom to be laid, thereby preventing the sediment remaining on the lake bottom from floating and causing secondary pollution.
While the above disclosure describes one or more preferred embodiments of the present invention, it is not intended to limit the scope of the claims to such embodiments, and one skilled in the art will understand that all or a portion of the processes performed in the above embodiments may be practiced without departing from the spirit and scope of the claims.
Claims (9)
1. A treatment device for heavy metal polluted sediment in lakes, which comprises a hull, a screening box, a first screen, a second screen and a third screen, wherein the screening box is arranged above the hull, the first screen, the second screen and the third screen are sequentially arranged in the screening box from top to bottom, the bottom of the screening box is provided with a fine sand storage box, and the treatment device is characterized in that,
the anti-blocking device also comprises an anti-blocking component;
prevent stifled subassembly includes crane, first motor, upset pole, returning face plate and projection, the crane set up in the lateral wall of screening case, first motor with crane fixed connection, and be located the inside of screening case, the upset pole set up in first screen cloth with between the second screen cloth, the one end of upset pole is passed the screening case with the crane rotates to be connected, the other end of upset pole with the output of first motor rotates to be connected, the returning face plate with upset pole fixed connection, and be located the top of upset pole, the top interval of returning face plate evenly is provided with a plurality of projections.
2. The method and the device for treating the lake heavy metal polluted bottom sediment according to claim 1,
prevent stifled subassembly still includes the cleaning unit, the cleaning unit set up in the inside of screening case, and be located the top of first screen cloth.
3. The treatment device of the lake heavy metal polluted bottom sludge as claimed in claim 2,
the crane includes first cylinder, lifter and guide bar, the quantity of first cylinder is two, two first cylinder set up respectively in the relative both sides of screening case, every the output of first cylinder all is provided with the lifter, the relative both sides of screening case are provided with the guide way respectively, the quantity of guide bar is two, two the guide bar runs through respectively and corresponds the guide way to respectively with corresponding lifter fixed connection, first motor and one of them guide bar fixed connection, the upset pole is with another the guide bar rotates and connects.
4. The device for treating the lake heavy metal polluted bottom sediment as claimed in claim 3,
each convex column comprises a bottom column, a spherical sleeve and a sharp nail, the bottom column is fixedly connected with the turnover plate and is located above the turnover plate, the spherical sleeve is arranged on the outer side wall of the bottom column, and the sharp nail is fixedly connected with the bottom column and is located above the bottom column.
5. The device for treating the lake heavy metal polluted bottom sediment as claimed in claim 4,
the cleaning unit comprises a movable screw rod, a water pump, a water distribution pipe and a connecting hose, the water pump is arranged on the outer side of the screening box, the movable screw rod is arranged inside the screening box and located above the first screen, the water distribution pipe is movably connected with the output end of the movable screw rod, one end of the connecting hose is communicated with the water pump, the other end of the connecting hose is communicated with the water distribution pipe, and a plurality of water spraying holes are uniformly formed in the bottom of the water distribution pipe at intervals.
6. The device for treating the lake heavy metal polluted bottom sediment as claimed in claim 5,
the treatment device for the heavy metal polluted bottom sediment in the lake further comprises a dredging component, and the dredging component is arranged at one end of the ship body.
7. The device for treating the lake heavy metal polluted bottom sediment as claimed in claim 6,
the dredging component comprises a first slurry pump, a bottom plate, an anchor windlass, an adjusting frame, a slurry inlet pipeline and a dredging drill bit, wherein the bottom plate is arranged at one end of the ship body, the anchor windlass is arranged above the bottom plate, the adjusting frame is in sliding connection with the bottom plate and is positioned below the bottom plate, a chain of the anchor windlass is fixedly connected with the adjusting frame, the dredging drill bit is arranged at the bottom of the adjusting frame, one end of the first slurry pump is connected with a top pipeline of the screening box, the other end of the first slurry pump is fixedly connected with the dredging drill bit through the slurry inlet pipeline, and the slurry inlet pipeline is fixedly connected with the adjusting frame.
8. The device for treating the lake heavy metal polluted bottom sediment as claimed in claim 7,
the adjusting frame comprises a sliding arm and a bending arm, the sliding arm is connected with the bottom plate in a sliding mode and is located below the bottom plate, and the bending arm is connected with the bottom of the sliding arm in a rotating mode.
9. A treatment method of lake heavy metal polluted bottom sediment, which adopts the treatment device of lake heavy metal polluted bottom sediment as claimed in claim 8, and is characterized by comprising the following steps:
the ship body runs in a lake according to an S-shaped route, the adjusting frame is adjusted downwards by the anchor lifter, and the excavating drill bit is made to contact the bottom of the lake;
starting the first slurry pump and the excavating drill bit, excavating the lake sediment into the screening box, and screening the first slurry pump into broken stones, coarse sand and fine sand;
during excavation, the broken stones are sent back to the bottom of the lake again, coarse sand and cement materials are mixed, and the mixture is laid above the broken stones;
and in the running process of the ship body, the anti-blocking component is periodically started to clean the first screen, the first slurry pump and the excavating drill stop working during cleaning, and the ship body continues to run after cleaning is finished.
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| CN202210285991.7A CN115557655B (en) | 2022-03-22 | 2022-03-22 | Treatment method and device for lake heavy metal pollution bottom mud |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210285991.7A CN115557655B (en) | 2022-03-22 | 2022-03-22 | Treatment method and device for lake heavy metal pollution bottom mud |
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| CN115557655B CN115557655B (en) | 2023-11-24 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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