CN117066261B - Petroleum contaminated soil regeneration and restoration device and restoration method - Google Patents
Petroleum contaminated soil regeneration and restoration device and restoration method Download PDFInfo
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- CN117066261B CN117066261B CN202311163382.5A CN202311163382A CN117066261B CN 117066261 B CN117066261 B CN 117066261B CN 202311163382 A CN202311163382 A CN 202311163382A CN 117066261 B CN117066261 B CN 117066261B
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- connecting plate
- aeration
- air outlet
- scattering
- rod
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- 239000002689 soil Substances 0.000 title claims abstract description 49
- 230000008929 regeneration Effects 0.000 title claims abstract description 16
- 238000011069 regeneration method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003208 petroleum Substances 0.000 title claims description 36
- 238000005273 aeration Methods 0.000 claims abstract description 82
- 239000000428 dust Substances 0.000 claims abstract description 15
- 239000010802 sludge Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 241000894006 Bacteria Species 0.000 claims description 11
- 230000000593 degrading effect Effects 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 8
- 239000012459 cleaning agent Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 230000000813 microbial effect Effects 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 244000005700 microbiome Species 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000003344 environmental pollutant Substances 0.000 claims description 4
- 231100000719 pollutant Toxicity 0.000 claims description 4
- 238000005381 potential energy Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 230000000712 assembly Effects 0.000 abstract 2
- 238000000429 assembly Methods 0.000 abstract 2
- 238000003756 stirring Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 22
- 238000005067 remediation Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000010399 physical interaction Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a petroleum-polluted soil regeneration and restoration device and a restoration method, wherein the inner wall of an aeration pipe of the petroleum-polluted soil regeneration and restoration device is uniformly provided with air outlet holes, the inside of each air outlet hole is provided with a dredging assembly or the inside of each air outlet hole also comprises a scattering assembly, the dredging assemblies and the scattering assemblies are mutually matched, when polluted soil is aerated, saw dust possibly blocked in the inside of the air outlet holes can be pushed outwards by sliding outwards from the inside of the air outlet holes through the rotation of a dredging part, and the scattered assembly is used for stirring and scattering clustered saw dust, so that the restoration effect of oil-containing soil is ensured.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to a petroleum-polluted soil regeneration and remediation device and a remediation method.
Background
In permafrost areas, petroleum pipelines, tanks or facilities may leak due to corrosion, mechanical failure or human error, which may lead to direct penetration of petroleum into the ground, and the petroleum is easily gradually accumulated in the ground due to the presence of the frozen soil layer, causing pollution.
At present, the petroleum polluted soil is restored by transferring cleaned oil sludge to an ectopic site with proper conditions through excavating and transporting equipment, paving a layer of impermeable membrane in advance, effectively preventing the permeate filtrate from polluting the site soil, uniformly paving the oil sludge on the impermeable membrane to serve as the bottom layer of a microbial reactor, inserting a large-caliber PVE hollow pipe into the bottom layer of the oil sludge at proper intervals, embedding a small-caliber aeration pipe into the hollow pipe, filling sawdust between two sleeve materials, covering a cover, ensuring that the aeration pipe is not blocked by the oil sludge, normally aerating, continuously paving the cleaned oil sludge by using a cement pump, pumping out the large-caliber hollow pipe, connecting each aeration pipe with aeration equipment, continuously aerating, providing enough oxygen for the subsequent microbial growth, uniformly spraying the mixed solution of a three-color cleaning agent and petroleum degrading bacteria into the oil-containing soil by using a water spraying device, and continuously aerating the petroleum degrading bacteria to degrade petroleum in the oil-containing soil.
Because the polluted soil contains certain moisture, and when the mixed solution of the three-color cleaning agent and the petroleum degrading bacteria is uniformly sprayed into the oil-containing soil by utilizing the water spraying device, the water can be brought, the saw dust has better water absorbability, and the saw dust is easy to be bonded into clusters after being absorbed, so that the aeration effect is influenced, and the restoration effect on the oil-containing soil is finally influenced.
Therefore, we propose a petroleum-contaminated soil regeneration and restoration device and restoration method.
Disclosure of Invention
The invention aims to provide a petroleum polluted soil regeneration and restoration device aiming at the technical defects existing in the prior art.
Another object of the invention is to provide a remediation method based on the petroleum contaminated soil regeneration remediation device.
The technical scheme adopted for realizing the purpose of the invention is as follows:
the petroleum polluted soil regeneration and restoration device comprises an aeration tank, wherein aeration pipes are uniformly arranged in the aeration tank, a hollow pipe is sleeved outside each aeration pipe, the aeration pipes are detachably connected with aeration equipment through aeration connecting pipes, air outlet holes are formed in the aeration pipes, and a dredging component is arranged inside each air outlet hole;
the dredging assembly comprises a dredging part and a connecting ring;
the outer wall of the connecting ring is fixedly provided with a sliding block, the inner wall of the air outlet hole is provided with a spiral sliding groove, and the sliding block is in sliding connection with the sliding groove;
the dredging part is of an umbrella cap structure, and the large opening end of the umbrella cap structure faces the inside of the aeration pipe;
the dredging part is connected to the connecting ring through a rotating assembly, the rotating assembly comprises a first connecting block fixed on the dredging part and a connecting shaft fixed on the first connecting block, the connecting shaft is rotationally connected to the connecting ring, a torsion spring is sleeved on the outer wall of the connecting shaft, the small claws on the two sides of the torsion spring are respectively fixed on the dredging part and the connecting ring, and the middle part of the torsion spring is sleeved on the connecting shaft;
the air outlet hole is internally provided with a scattering component which comprises a first connecting plate fixed on the inner wall of the air outlet hole, a fan rotationally connected on the first connecting plate and a connecting rod penetrating through the center positions of the fan and the first connecting plate, the outer wall of connecting rod is equipped with the sand grip that extends along its length direction, the connecting rod wears to overlap on the fan, can follow when rotatory with the fan the axial back-and-forth slip of fan, just the connecting rod does not take off in first connecting plate, the tip of connecting rod is equipped with first scattered pole.
In the technical scheme, the strip-shaped protrusions are fixed on the outer wall of the umbrella cap structure and distributed on the umbrella cap structure in a scattering mode.
In the above technical scheme, be fixed with on the first pole of scattering rather than vertically second pole of scattering, the second pole of scattering is along the length direction evenly distributed of first pole of scattering, and the second pole of scattering is cross or in-line.
In the above technical scheme, first connecting plate is two ring structures, and outer ring circle is fixed on the venthole, and interior ring circle supplies the connecting rod to pass, the tip fixed third connecting block of connecting rod, the diameter of connecting rod is less than the internal diameter of interior ring circle, the external diameter of third connecting block is greater than the internal diameter of interior ring circle.
In the above technical scheme, the end part of the connecting rod is fixed with a second connecting block, four first scattering rods pass through holes arranged on the second connecting block, the four first scattering rods are uniformly arranged on the second connecting block in a circumferential array, one side, far away from the axis of the second connecting block, of each of the four first scattering rods is fixed with the second scattering rod, one side, close to the axis of the second connecting block, of each of the two opposite first scattering rods is respectively provided with a gear, one side, close to the axis of the second connecting block, of each of the two opposite first scattering rods is also provided with a conical gear, and one side, close to the axis of the second connecting block, of each of the other two opposite first scattering rods is also respectively provided with a conical gear, and the two first scattering rods are synchronously connected with the first scattering rods provided with gears in a rotating manner through the conical gears;
the gear is meshed with the rack, the rack is fixed on a second connecting plate, the second connecting plate is slidably mounted on the inner wall of the connecting rod, the second connecting plate penetrates through the connecting rod, a spring is arranged between the third connecting plate and the connecting rod, one end of the spring is fixed on the connecting rod, the other end of the spring is fixed on the third connecting plate, the middle of the spring is sleeved on the second connecting plate in a penetrating manner, the other end of the second connecting plate is fixedly provided with a third connecting plate after penetrating out of the third connecting plate, the third connecting plate is positioned on one side of the third connecting plate, a fourth connecting plate is fixedly connected on the third connecting plate, and the fourth connecting plate is positioned on one side of the third connecting plate;
two symmetrical arc-shaped protruding blocks are fixed on the inner side of the inner ring of the first connecting plate, and the middle of each protruding block is a plane, and the two ends of each protruding block are inclined planes.
The repairing method of the petroleum polluted soil regeneration repairing device comprises the following steps:
step S1: paving a layer of impermeable membrane in the aeration tank, and uniformly paving the oil sludge on the impermeable membrane to serve as the bottom layer of the microbial reactor;
step S2: transferring the cleaned sludge into an aeration tank through excavating and transporting equipment to form bottom sludge;
step S3: inserting hollow tubes (large-caliber PVE hollow tubes) into the bottom layer oil sludge at proper intervals, embedding small-caliber aeration tubes into the hollow tubes, filling saw dust between the aeration tubes and the hollow tubes, and covering the top of the hollow tubes with a cover to ensure that the hollow tubes are not blocked by the oil sludge;
step S4: continuously paving the cleaned oil sludge into the aeration tank by using a cement pump;
step S5: drawing out the large-caliber hollow tube with the cover, connecting each aeration tube to aeration equipment through an aeration connecting tube, and continuously aerating to provide enough oxygen for the subsequent microorganism growth; when the gas is injected into the aeration pipe through the aeration connecting pipe, the gas is discharged from the air outlet hole, the gas drives the dredging part to move outwards while rotating through the connecting ring, saw dust possibly entering the air outlet hole is pushed outwards, and when the dredging part slides out of the air outlet hole, the torsion spring releases elastic potential energy to drive the dredging part to rotate upwards, so that the air outlet hole is opened;
step S6: and uniformly spraying the mixed solution of the trichromatic cleaning agent and the petroleum degrading bacteria in the oil-containing soil by using a water spraying device, and continuously aerating to degrade petroleum pollutants by using the petroleum degrading bacteria.
In the above technical scheme, in step S5, when the aeration pipe works, air flows from the inner side to the outer side of the air outlet hole, the fan rotates to drive the connecting rod to rotate, when the dredging part moves to the outermost side, the connecting rod moves outwards along the axial direction of the fan, the first scattering rod is located at the outer side port position of the air outlet hole, and the first scattering rod rotates around the connecting rod to scatter sawdust.
In the above technical scheme, in step S5, when the connecting rod slides outwards in the air outlet, the third connecting block is driven to move between the two protruding blocks, the fourth connecting plate is located at one side of the protruding block, the fourth connecting plate is driven to rotate when the connecting rod rotates, the fourth connecting plate is driven to move forwards and backwards through the cooperation of the protruding block and the spring, the fourth connecting plate drives the second connecting plate to move forwards and backwards through the third connecting plate, the second connecting plate moves forwards and backwards to drive the rack to move forwards and backwards, the rack moves forwards and backwards to drive the gear to rotate, and the gear drives the first scattering rod to rotate and scatter sawdust.
Compared with the prior art, the invention has the beneficial effects that:
1. when the polluted soil is aerated, the dredging part of the invention slides outwards from the inside of the air outlet hole while rotating, and the saw dust possibly blocked in the inside of the air outlet hole is pushed outwards, so that the channel of the air outlet hole is kept smooth, the air outlet hole is convenient for subsequent aeration, and the remediation effect of the oil-containing soil is improved;
2. in the aeration process, the scattering component can continuously scatter sawdust, and the dredging component and the scattering component are matched with each other, so that the aeration can smoothly pass through the sawdust to reach the inside of soil, and enough oxygen is provided for the growth of subsequent microorganisms, so that the restoration effect of the oil-containing soil is optimized;
3. according to the invention, through the arrangement of the arc-shaped convex blocks, the springs, the second connecting plate, the third connecting plate, the fourth connecting plate and the gear rack, the first scattering rod can be driven to rotate, so that the first scattering rod rotates around the connecting rod and simultaneously rotates, and the scattering effect is further improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
FIG. 2 is a schematic view showing a sectional structure of an aerator pipe according to the present invention.
FIG. 3 is a schematic view of a cross-sectional structure of an air outlet according to the present invention.
Fig. 4 is a schematic cross-sectional view of the dredging part of the present invention.
FIG. 5 is a schematic view of the dredging assembly of the present invention.
Fig. 6 is an enlarged schematic view of fig. 5 a in accordance with the present invention.
Fig. 7 is an enlarged schematic view of fig. 5B in accordance with the present invention.
FIG. 8 is a schematic view of the structure of the breaking assembly according to the present invention.
Fig. 9 is an enlarged schematic view of fig. 8 at C in accordance with the present invention.
FIG. 10 is a schematic view of the bump structure of the present invention.
In the figure: 1. an aeration tank; 2. an aeration pipe; 3. a hollow tube; 4. an aeration connecting pipe; 5. an aeration device; 6. an air outlet hole; 7. a dredging part; 8. a connecting ring; 9. a slide block; 10. a chute; 11. a first connection block; 12. a connecting shaft; 13. a torsion spring; 14. a connecting rod; 15. a first scatter bar; 16. a second breaker bar; 17. a fan; 18. a first connection plate; 19. a gear; 20. a rack; 21. a second connecting plate; 22. a third connecting plate; 23. a fourth connecting plate; 24. a spring; 25. a bump; 26. a convex strip; 27. a bevel gear; 28. a second connection block; 29. a third connecting block; 30. and a strip-shaped protrusion.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The petroleum polluted soil regeneration and restoration device comprises an aeration tank 1, wherein aeration pipes 2 are uniformly arranged in the aeration tank 1, a hollow pipe 3 is sleeved outside each aeration pipe 2, the aeration pipes 2 are detachably connected with aeration equipment 5 through an aeration connecting pipe 4, air outlet holes 6 are formed in the aeration pipes 2, and dredging components are arranged inside each air outlet hole 6;
the dredging assembly comprises a dredging part 7 and a connecting ring 8;
a sliding block 9 is fixed on the outer wall of the connecting ring 8, a spiral sliding groove 10 is formed in the inner wall of the air outlet hole 6, and the sliding block 9 is slidably connected in the sliding groove 10;
the dredging part 7 is of an umbrella cap structure, and the large opening end of the umbrella cap structure faces the inside of the aeration pipe 2;
the outer fringe of pull throughs 7 pass through rotating assembly connect in on the go-between 8, rotating assembly is including fixing first connecting block 11 on pull throughs 7 and fix connecting axle 12 on the first connecting block 11, connecting axle 12 rotates to be connected on the go-between 8, torsion spring 13 is established to the outer wall cover of connecting axle 12, and the pawl of torsion spring 13 both sides is fixed respectively on pull throughs 7 and go-between 8, and the middle part cover of torsion spring 13 is on connecting axle 12, because fig. 6 is the partial cross section, does not show the pawl of torsion spring 13 both sides.
In the initial state, the dredging part 7 and the connecting ring 8 are positioned on the inner side of the air outlet 6, the dredging part 7 closes the channel of the air outlet 6, when the aeration pipe 2 works, air flows from the inner side to the outer side of the air outlet 6, thereby pushing the dredging part 7, the slide block 9 rotates outwards along the chute 10, thereby driving the connecting ring 8 to rotate and simultaneously move outwards towards the air outlet 6, the dredging part 7 moves outwards along with the rotation, sawdust in the air outlet 6 is pushed outwards to clean the air outlet 6, when the dredging part 7 moves to the outermost side, the torsion spring 13 releases elastic potential energy due to no blocking of the air outlet 6, the connecting shaft 12 rotates upwards, the connecting shaft 12 rotates to drive the first connecting block 11, and the first connecting block 11 rotates to drive the dredging part 7 to rotate upwards by ninety degrees, so that the channel of the air outlet 6 is opened, the air outlet 6 is convenient to perform aeration subsequently, and the aeration efficiency can be greatly improved due to no sawdust blocking in the air outlet 6.
The polluted soil in the aeration tank 1 is oil-containing soil, the aeration pipe 2 is a small-caliber pipe, the hollow pipe 3 is a large-caliber PVE pipe, and the aeration equipment 5 is common aeration equipment, and redundant description is omitted here;
the repairing method of the petroleum polluted soil regeneration repairing device comprises the following steps:
s1: paving a layer of impermeable membrane in the aeration tank 1, and uniformly paving the oil sludge on the impermeable membrane to serve as a bottom layer of the microbial reactor;
s2: transferring the cleaned sludge into an aeration tank 1 through excavating and transporting equipment to form bottom sludge;
s3: inserting hollow pipes 3 (large-caliber PVE hollow pipes) into the bottom-layer sludge at proper intervals, embedding small-caliber aeration pipes 2 into the hollow pipes 3, filling saw dust between the aeration pipes 2 and the hollow pipes 3, and covering the top of the hollow pipes 3 with a cover to ensure that the hollow pipes 3 are not blocked by the sludge; the sawdust can improve the adsorption capacity, air permeability, soil stability and durability of a repairing agent in the petroleum repairing process, and promote the removal of petroleum pollutants and the recovery of soil;
s4: continuously paving the cleaned oil sludge into the aeration tank 1 by using a cement pump;
s5: drawing out large-caliber hollow pipes 3 with covers, connecting each aeration pipe 2 to an aeration device 5 through an aeration connecting pipe 4, and continuously aerating to provide enough oxygen for the subsequent microorganism growth; when gas is injected into the aeration pipe 2 through the aeration connecting pipe 4, the gas is discharged from the air outlet hole 6, the gas drives the connecting ring 8 to move outwards, the movement of the connecting ring 8 drives the sliding block 9 to move, the sliding block 9 slides in the sliding groove 10, and as the sliding groove 10 is arranged as a spiral groove, the sliding block 9 can drive the dredging part 7 to rotate when sliding in the sliding groove 10, the dredging part 7 can move outwards while rotating, saw dust possibly entering the air outlet hole 6 is pushed outwards, and when the dredging part 7 slides out of the air outlet hole 6, the torsion spring 13 releases elastic potential energy to drive the dredging part 7 to rotate upwards, so that the air outlet hole 6 is opened;
s6: and uniformly spraying the mixed solution of the trichromatic cleaning agent and the petroleum degrading bacteria in the oil-containing soil by using a water spraying device, and continuously aerating to degrade petroleum pollutants by using the petroleum degrading bacteria. The tri-color cleaning agent can decompose crude oil particles with larger particle size in soil into small particles, and petroleum degradation bacteria can degrade the small-particle crude oil into carbon dioxide and water, so that the aim of repairing the oil-containing soil is fulfilled, nutrients such as water, inorganic salt and the like are required to be periodically supplemented during the period, the growth and propagation of microorganisms are ensured, and the degradation rate of petroleum is improved.
Preferably, the strip-shaped protrusions 30 are fixed on the outer wall of the umbrella cap structure, and the strip-shaped protrusions 30 are distributed on the umbrella cap structure in a scattering mode, so that the pushing and scattering effects on sawdust can be improved.
Example two
Because the polluted soil contains certain moisture, and when the mixed solution of the trichromatic cleaning agent and the petroleum degrading bacteria is uniformly sprayed into the oil-containing soil by utilizing the water spraying device, the water is brought, and the sawdust has better water absorbability due to the porous structure and the fiber characteristics of the sawdust, the contact area between the fibers in the sawdust and the petroleum particles is increased after the sawdust absorbs water, so that the sawdust is easier to bond with each other, wood fibers in the sawdust become soft and expand after the sawdust absorbs water, physical interaction is easier to occur between the fibers, a lump is formed, and further, because the sawdust absorbs water after the sawdust absorbs water, the water is unevenly distributed in the sawdust, more water is likely to be absorbed in some areas, and the sawdust is relatively less in other areas, and the uneven water distribution is helpful for forming the sawdust lump, so that the air outlet holes 6 are easy to block.
In order to solve the above problems, this embodiment is further optimized on the basis of embodiment 1, and in this embodiment, a scattering component is disposed in the air outlet hole 6, and in the aeration process, sawdust can be continuously scattered. The dredging assembly and the scattering assembly are matched with each other, when contaminated soil is aerated, the contaminated soil can slide outwards from the inside of the air outlet hole 6 through the rotation of the dredging part 7, saw dust possibly clamped inside the air outlet hole 6 is pushed outwards, and the clustered saw dust is stirred and scattered through the scattering assembly, so that the contaminated soil can be smoothly aerated, enough oxygen is provided for subsequent microbial growth, and the repairing effect of the oily soil is optimized.
The breaking assembly comprises a first connecting plate 18 fixed on the inner wall of the air outlet hole 6, a fan 17 rotatably connected to the first connecting plate 18, and a connecting rod 14 penetrating through the center positions of the fan 17 and the first connecting plate 18, wherein the connecting rod 14 is slidably sleeved at the center position of the fan 17, a raised strip 26 extending along the length direction of the outer wall of the connecting rod 14 is arranged on the outer wall of the connecting rod 14 so as to rotate along with the fan 17, namely, the connecting rod 14 can slide along the axial direction of the fan 17 while rotating along with the fan 17, the connecting rod 14 is not separated from the first connecting plate 18, and a first breaking rod 15 is arranged at the end part of the connecting rod 14.
When the aeration pipe 2 works, air flows from the inner side to the outer side of the air outlet hole 6, the fan 17 rotates to drive the connecting rod 14 to rotate, when the dredging part 7 moves to the outermost side, the connecting rod 14 is not blocked, the connecting rod 14 moves outwards along the axial direction of the fan 17, the first scattering rod 15 is positioned at the outer side port position of the air outlet hole 6, and in the aeration process, the fan 17 drives the connecting rod 14 to rotate through the raised strips 26, so that the first scattering rod 15 is driven to rotate around the connecting rod 14 to scatter saw dust.
Preferably, the first breaking rod 15 is fixed with a second breaking rod 16 perpendicular thereto, the second breaking rods 16 are uniformly distributed along the length direction of the first breaking rod 15, and the second breaking rod 16 is cross-shaped or in a straight line shape, so as to further improve the breaking effect on sawdust.
Preferably, the first connecting plate 18 is of a double-ring structure, the outer ring is fixed on the inner wall of the air outlet hole 6, the inner ring is provided for the connecting rod 14 to pass through, the end of the connecting rod 14 is fixed with a third connecting block 29, the diameter of the connecting rod 14 is smaller than the inner diameter of the inner ring, so that the connecting rod 14 can slide in the inner ring of the first connecting plate 18, and the outer diameter of the third connecting block 29 is larger than the inner diameter of the inner ring, so as to prevent the connecting rod 14 from falling out of the first connecting plate 18.
Example III
The present embodiment is further optimized based on embodiment 2, so that the first breaking rod 15 rotates along with the connecting rod 14 and simultaneously rotates, thereby further improving the breaking effect.
In order to achieve the above function, a second connection block 28 is fixed at one end of the connection rod 14 far away from the first connection plate 18, four first breaking rods 15 all pass through holes arranged on the second connection block 28, and four first breaking rods 15 are uniformly arranged on the second connection block 28 in a circumferential array. The second breaking rods 16 are fixed on one side, far away from the axis of the second connecting block 28, of the four first breaking rods 15, the gears 19 are arranged on one side, close to the axis of the second connecting block 28, of the two opposite first breaking rods 15, one conical gear 27 is further arranged on one side, close to the axis of the second connecting block, of the other two opposite first breaking rods 15, the conical gear 27 is respectively arranged on one side, close to the axis of the second connecting block, of the other two opposite first breaking rods 15, the gears 19 are connected with the racks 20 in a synchronous rotating manner through the conical gears 27, the racks 20 are fixed on the second connecting plates 21, the second connecting plates 21 are slidably arranged on the inner walls of the connecting rods 14, the second connecting plates 21 penetrate through the connecting rods 14, springs 24 are arranged between the third connecting plates 22 and the connecting rods 14, one ends of the springs 24 are fixed on the connecting rods 14, the other ends of the springs are fixed on the third connecting plates 22, the middle of the second connecting plates 21 are sleeved on the third connecting plates 21, the other ends of the second connecting plates 21 are fixedly provided with the third connecting plates 29, the third connecting plates 22 are fixedly arranged on the third connecting plates 22, the third connecting plates 23 are fixedly connected with the fourth connecting plates 23, and the fourth connecting plates 23 are fixedly arranged on one sides of the third connecting plates 23;
two symmetrical arc-shaped protruding blocks 25 are fixed on the inner side of the inner ring of the first connecting plate 18, and the middle of each protruding block 25 is a plane, and the two ends of the plane are inclined planes.
The end of the fourth connecting plate 23 extends to the outer surface of the protruding block 25, and cooperates with the plane and the inclined plane of the protruding block 25, when the connecting rod 14 rotates, the end of the fourth connecting plate 23 slides on the plane and the inclined plane of the protruding block 25, and then cooperates with the spring 24 to drive the second connecting plate 21 to reciprocate, so as to provide power for the rotation of the first breaking rod 15.
The one end fixed mounting of connecting rod 14 has third connecting block 29, when connecting rod 14 outwards slides in venthole 6, drive third connecting block 29 and slide, third connecting block 29 slides to between two lugs 25, fourth connecting plate 23 is located one side of lug 25, because first connecting plate 18 is fixed mounting in the inside of venthole 6, lug 25 and first connecting plate 18 fixed connection, drive fourth connecting plate 23 rotation when connecting rod 14 rotates, drive fourth connecting plate 23 back and forth movement through the cooperation of lug 25 and spring 24, fourth connecting plate 23 drives second connecting plate 21 back and forth movement through third connecting plate 22, second connecting plate 21 drives rack 20 back and forth movement, rack 20 back and forth movement drives gear 19 rotation, gear 19 drives first scattered pole 15 rotation, further improve the effect of breaking up.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (9)
1. The petroleum polluted soil regeneration and restoration device is characterized by comprising an aeration tank, wherein aeration pipes are uniformly arranged in the aeration tank, a hollow pipe is sleeved outside each aeration pipe, the aeration pipes are detachably connected with aeration equipment through aeration connecting pipes, air outlet holes are formed in the aeration pipes, and a dredging component is arranged inside each air outlet hole;
the dredging assembly comprises a dredging part and a connecting ring;
the outer wall of the connecting ring is fixedly provided with a sliding block, the inner wall of the air outlet hole is provided with a spiral sliding groove, and the sliding block is in sliding connection with the sliding groove;
the dredging part is of an umbrella cap structure, and the large opening end of the umbrella cap structure faces the inside of the aeration pipe;
the dredging part is connected to the connecting ring through a rotating assembly, the rotating assembly comprises a first connecting block fixed on the dredging part and a connecting shaft fixed on the first connecting block, the connecting shaft is rotationally connected to the connecting ring, and a torsion spring is sleeved on the outer wall of the connecting shaft;
the air outlet hole is internally provided with a scattering component which comprises a first connecting plate fixed on the inner wall of the air outlet hole, a fan rotationally connected on the first connecting plate and a connecting rod penetrating through the center positions of the fan and the first connecting plate, the outer wall of connecting rod is equipped with the sand grip that extends along its length direction, the connecting rod wears to overlap on the fan, can follow when rotatory with the fan the axial slip of fan, just the connecting rod does not take off in first connecting plate, the tip of connecting rod is equipped with first scattered pole.
2. The petroleum-contaminated soil reclamation and restoration device as recited in claim 1, wherein strip-shaped protrusions are fixed on the outer wall of the umbrella cap structure, and the strip-shaped protrusions are distributed on the umbrella cap structure in a scattering shape.
3. The petroleum polluted soil regeneration and restoration device as set forth in claim 1, wherein said first breaking-up bar is fixed with second breaking-up bars perpendicular thereto, the second breaking-up bars being uniformly distributed along the length direction of the first breaking-up bars, the second breaking-up bars being in a cross shape or a straight shape.
4. The petroleum polluted soil regeneration and restoration device as set forth in claim 1, wherein said first connection plate has a double-circular structure, an outer ring is fixed on the air outlet hole, an inner ring is passed through by the connection rod, a third connection block is fixed at the end of said connection rod, the diameter of the connection rod is smaller than the inner diameter of said inner ring, and the outer diameter of said third connection block is larger than the inner diameter of said inner ring.
5. The petroleum polluted soil regeneration and restoration device according to claim 4, wherein the end part of the connecting rod is fixed with a second connecting block, four first scattering rods penetrate through holes formed in the second connecting block, the four first scattering rods are uniformly arranged on the second connecting block in a circumferential array, one side, far away from the axis of the second connecting block, of each of the four first scattering rods is fixed with a second scattering rod, one side, close to the axis of the second connecting block, of each of the two opposite first scattering rods is respectively provided with a gear, one side, close to the axis of the second connecting block, of each of the other two opposite first scattering rods is also provided with a conical gear, and each of the other two opposite first scattering rods is also respectively provided with a conical gear, and is connected with the first scattering rod provided with the gear in a synchronous rotation manner through the conical gears;
the gear is meshed with the rack, the rack is fixed on a second connecting plate, the second connecting plate is slidably mounted on the inner wall of the connecting rod, the second connecting plate penetrates through the connecting rod, a spring is arranged between the third connecting plate and the connecting rod, one end of the spring is fixed on the connecting rod, the other end of the spring is fixed on the third connecting plate, the middle of the spring is sleeved on the second connecting plate in a penetrating manner, the other end of the second connecting plate is fixedly mounted with a third connecting plate after penetrating out of the third connecting plate, the third connecting plate is fixedly connected with a fourth connecting plate, and the third connecting plate and the fourth connecting plate are both positioned on one side of the third connecting plate;
two symmetrical arc-shaped protruding blocks are fixed on the inner side of the inner ring of the first connecting plate, and the middle of each protruding block is a plane, and the two ends of each protruding block are inclined planes.
6. The petroleum contaminated soil reclamation apparatus of claim 5, wherein a plurality of first breaker bars are connected in synchronous rotation by means of bevel gears.
7. A method for repairing a petroleum-contaminated soil reclamation repair apparatus as recited in any one of claims 1-6, comprising the steps of:
step S1: paving a layer of impermeable membrane in the aeration tank, and uniformly paving the oil sludge on the impermeable membrane to serve as the bottom layer of the microbial reactor;
step S2: transferring the cleaned sludge into an aeration tank through excavating and transporting equipment to form bottom sludge;
step S3: inserting hollow tubes into the bottom layer oil sludge at proper intervals, embedding small-caliber aeration tubes into the hollow tubes, filling saw dust between the aeration tubes and the hollow tubes, and covering the top of the hollow tubes with a cover to ensure that the hollow tubes are not blocked by the oil sludge;
step S4: continuously paving the cleaned oil sludge into the aeration tank by using a cement pump;
step S5: drawing out the large-caliber hollow tube with the cover, connecting each aeration tube to aeration equipment through an aeration connecting tube, and continuously aerating to provide enough oxygen for the subsequent microorganism growth; when the gas is injected into the aeration pipe through the aeration connecting pipe, the gas is discharged from the air outlet hole, the gas drives the dredging part to move outwards while rotating through the connecting ring, saw dust entering the air outlet hole is pushed outwards, and when the dredging part slides out of the air outlet hole, the torsion spring releases elastic potential energy to drive the dredging part to rotate upwards, so that the air outlet hole is opened;
step S6: and uniformly spraying the mixed solution of the trichromatic cleaning agent and the petroleum degrading bacteria in the oil-containing soil by using a water spraying device, and continuously aerating to degrade petroleum pollutants by using the petroleum degrading bacteria.
8. The repairing method according to claim 7, wherein in the step S5, when the aeration pipe is operated, air flows from the inner side to the outer side of the air outlet hole, the fan rotates to drive the connecting rod to rotate, and when the dredging part moves to the outermost side, the connecting rod moves outwards along the axial direction of the fan, the first scattering rod is located at the outer side port position of the air outlet hole, and the first scattering rod rotates around the connecting rod to scatter saw dust.
9. The repairing method of claim 8, wherein in the step S5, when the connecting rod slides outwards in the air outlet hole, the third connecting block is driven to move between the two convex blocks, the fourth connecting plate is positioned at one side of the convex block, the fourth connecting plate is driven to rotate when the connecting rod rotates, the fourth connecting plate is driven to move forwards and backwards through the cooperation of the convex block and the spring, the fourth connecting plate drives the second connecting plate to move forwards and backwards through the third connecting plate, the second connecting plate moves forwards and backwards to drive the rack to move forwards and backwards, the rack moves forwards and backwards to drive the gear to rotate, and the gear drives the first scattering rod to rotate, so that the sawdust is scattered.
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