CN111687196A - Soil remediation method and soil remediation equipment - Google Patents
Soil remediation method and soil remediation equipment Download PDFInfo
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- CN111687196A CN111687196A CN202010516812.7A CN202010516812A CN111687196A CN 111687196 A CN111687196 A CN 111687196A CN 202010516812 A CN202010516812 A CN 202010516812A CN 111687196 A CN111687196 A CN 111687196A
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- soil
- remediation
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- oxygen
- transportation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
- A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
- A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/24—Drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
Abstract
The invention discloses a soil remediation method and soil remediation equipment, wherein the remediation method comprises the steps that soil leaves the ground; crushing soil; the soil enters a transportation channel; spraying a remediation agent on the soil in the transportation channel; carrying out secondary crushing and oxygen transfer on the soil in the transportation channel; crushing the soil again; the soil can be subjected to short-term ex-situ remediation in situ, the soil enters the transportation channel and is discharged after remediation, the soil does not need to be transported out in an ex-situ mode, the soil at different depths can be remedied, the remediation cost is low, the chemical remediation agent is used for remedying the soil, oxygen is blended into the soil, the soil remediation effect is enhanced, and the remediation comprehensive effect is good.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to a soil remediation method and soil remediation equipment.
Background
With the continuous acceleration of the industrialization process, the soil pollution is serious due to the unreasonable exploitation of mineral resources, smelting discharge of the mineral resources, sewage irrigation and sludge application to the soil for a long time, atmospheric sedimentation caused by artificial activities, application of chemical fertilizers and pesticides and the like. The polluted soil remediation is a technical measure which reduces the concentration (activity) of soil pollutants by adopting physical, chemical, biological and ecological principles and adopting artificial regulation measures, so as to realize the harmlessness and stabilization of the pollutants and achieve the expected detoxification effect. At present, theoretically feasible repair technologies include phytoremediation, microbial remediation, chemical remediation, physical remediation, comprehensive remediation and the like. Chemical remediation is primarily a method of removing and reducing pollutants in the environment by chemical additives. In the chemical remediation, the remediation method is distinguished from in-situ remediation, the remediation is generally carried out in situ, the remediation depth of the soil is limited, the cost is relatively low, and the remediation depth of the soil is not limited, the cost is relatively high.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a soil remediation method and soil remediation equipment, which are used for chemical remediation and can carry out short translocation treatment in situ on soil, so that the remediation cost is reduced, and the remediation efficiency is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of soil remediation comprising the steps of:
s1: removing the soil from the ground using the stripper;
s2: crushing the soil by using the crushing piece;
s3: the soil enters a transportation channel;
s4: spraying a remediation agent on the soil in the transportation channel;
s5: carrying out secondary crushing and oxygen transfer on the soil in the transportation channel;
s6: the soil leaves the transport channel;
s7: crushing the soil again by using the crushing piece;
s8: the soil re-enters the ground.
The invention also relates to remediation equipment based on the soil remediation method, which comprises a front shovel, a crushing roller, a transportation auger, a remediation agent spraying box, an oxygen melting box and a discharge channel, wherein the discharge end of the front shovel is communicated with the feed end of the transportation auger, the discharge end of the transportation auger is communicated with the discharge channel, the remediation agent spraying box and the oxygen melting box are sequentially wrapped outside the transportation auger along the feed direction of the transportation auger, and a shell of the transportation auger is provided with a penetration hole. The soil to be repaired passes through the crushing roller through the front shovel and then enters the transportation auger, the repairing agent spraying box sprays the repairing agent on the soil in the transportation auger, then the oxygen melting box dries and melts the oxygen on the soil in the transportation auger, and finally the soil is discharged from the discharge channel.
Preferably, the front shovel comprises a shovel part with an open top and a crushing part with a sealed top, and the crushing part is internally provided with crushing rollers.
Specifically, broken roller includes at least one intermediate lamella, at least one radial hobbing cutter and at least one axial hobbing cutter, radial hobbing cutter uses the center of intermediate lamella to encircle in the outer fringe of intermediate lamella as the centre of a circle, radial hobbing cutter is fixed to be located between the radial hobbing cutter, the cutting direction mutually perpendicular of cutting direction and radial hobbing cutter of axial hobbing cutter and. The middle plate rotates to drive the radial hob and the axial hob to rotate simultaneously, and soil can be cut in the transverse direction and the longitudinal direction.
Preferably, the repairing agent sprays the inside hydrojet that sets up of box, the hydrojet is located the top of transportation auger, hydrojet and the feed liquor pipe intercommunication of carrying the repairing agent, hydrojet will be restoreed on spraying the transportation auger, the repairing agent gets into in the inside soil of transportation auger through the infiltration hole of transportation auger.
Preferably, the repairing agent sprays the box and sets up the filter in the below of transportation auger, and the filter is used for filtering the repairing agent from the transportation auger drippage, the repairing agent sprays the one end of the bottom fixed connection collector tube of box, the other end and the feed liquor pipe intercommunication of collector tube, collector tube are used for retrieving the repairing agent, realize the make full use of repairing agent.
Preferably, melt inside air jet and the air cycle fan that sets up of oxygen box, the air jet communicates with the intake pipe of carrying the pure oxygen, and the air jet can be to melting the oxygen box in the pure oxygen of drum-in, and the pure oxygen gets into in the inside soil of transportation auger through the infiltration hole of transportation auger.
Furthermore, the inside heating member that still sets up the optimization and melt oxygen ambient temperature of oxygen box.
Preferably, repair agent sprays the box and melts to set up between the oxygen box and keep apart the box, keep apart the box and connect repair agent and spray the box and melt the oxygen box, keep apart the box and set up the wiper for wipe the repair agent on transportation auger surface, prevent that repair agent from dripping to entering and melting in the oxygen box.
Preferably, the screw rod is arranged in the transportation auger, the rod part of the screw rod section in the oxygen melting box is provided with a soil loosening spring for stirring soil, and the soil loosening spring is used for loosening the soil in the oxygen melting box.
Preferably, the soil loosening spring comprises a connecting part for the screw rod part and a stirring part for stirring soil; the stirring part comprises a spiral supporting part and a cutting part, and the cutting surface of the cutting part is positioned at the outer edge and the inner edge of the supporting part. . The cutting part can be used for cutting soil, further splits soil, reduces the caking of soil, strengthens the oxygen content that melts of soil for the drying of soil.
Preferably, the discharging channel is internally provided with a discharging recrushment piece, and the discharging recrushment piece 71) is used for recrushating the soil so as to ensure that the soil returned to the ground is more fluffy.
The invention has the beneficial effects that:
1. the soil remediation method and the remediation equipment can carry out short-time ex-situ remediation on soil in situ, the soil enters the transportation channel and is discharged after remediation, the soil does not need to be transported out in other places, the soil at different depths can be remedied, the remediation cost is low, and the remediation comprehensive effect is good.
2. The soil remediation method and the remediation equipment can be used for remediating soil by using the chemical remediation agent, and oxygen is blended into the soil to enhance the remediation effect of the soil.
3. This native repair equipment is when melting oxygen to soil, loosens the soil through the spring that loosens the soil, reduces the caking phenomenon through the moist soil of repairing agent, strengthens the contact efficiency of soil oxygen simultaneously, promotes and melts the oxygen rate.
4. The spring that loosens soil in the native repair equipment not only can loosen the soil to soil, and wherein set up the cutting part and can cut soil, further rip soil, the caking of further reduction soil strengthens the oxygen dissolving amount of soil, and the combined effect is good.
Drawings
FIG. 1 is a diagram of the steps of the present soil remediation method;
FIG. 2 is a schematic structural view of the present soil remediation device;
FIG. 3 is a schematic structural diagram of a crushing roller of the soil remediation device;
FIG. 4 is a schematic structural diagram of the oxygen melting box of the soil remediation device
FIG. 5 is a schematic structural diagram of a soil loosening spring of the soil remediation device;
FIG. 6 is a schematic cross-sectional view of a loosening spring agitation portion of the present soil remediation device.
In the figure: 1. front shoveling; 2. crushing the roller; 3. conveying the auger; 4. a repair agent spraying box; 5. an isolation box; 6. an oxygen melting box; 7. a discharge channel; 11. a soil shoveling part; 12. a crushing section; 21. a middle plate; 22. radial hobbing cutters; 23. axial hobbing cutters; 31. a screw rod; 32. a loosening spring; 41. a liquid inlet pipe; 42. a liquid jet head; 43. a filter plate; 44. a recovery pipe; 61. an air inlet pipe; 62. a gas showerhead; 63. an air circulation fan; 64. a heating member; 71. discharging and then crushing the parts; 321. a connecting portion; 322. a stirring section; 3221. a support portion; 3222. a cutting part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a soil remediation method includes the steps of:
s1: removing the soil from the ground using the stripper;
s2: crushing the soil by using the crushing piece;
s3: the soil enters a transportation channel;
s4: spraying a remediation agent on the soil in the transportation channel;
s5: carrying out secondary crushing and oxygen transfer on the soil in the transportation channel;
s6: the soil leaves the transport channel;
s7: crushing the soil again by using the crushing piece;
s8: the soil re-enters the ground.
Referring to fig. 2, this embodiment relates to a prosthetic devices based on foretell soil repair method, including preceding shovel 1, broken roller 2, transportation auger 3, repairing agent spray box 4, melt oxygen box 6 and discharging channel 7, the discharge end of preceding shovel 1 and the feed end intercommunication of transportation auger 3, the discharge end and the discharging channel 7 intercommunication of transportation auger 3, repairing agent sprays box 4 and melts oxygen box 6 and wraps up in the outside of transportation auger 3 along the direction of feed of transportation auger 3 in proper order, the infiltration hole is seted up to the casing of transportation auger 3. The soil to be repaired passes through the crushing roller 2 through the front shovel 1 and then enters the transportation auger 3, the repairing agent spraying box 4 sprays the repairing agent on the soil in the transportation auger 3, then the oxygen melting box 6 dries and melts the oxygen on the soil in the transportation auger 3, and finally the soil is discharged from the discharge channel 7.
Referring to fig. 2, the front shovel 1 includes a shovel part 11 with an open top and a crushing part 12 with a sealed top, the shovel part 11 is used for shoveling soil and peeling soil from the soil to make the soil enter the crushing part 12, a crushing roller 2 is arranged inside the crushing part 12, and the crushing roller 2 is used for crushing the soil.
Specifically, referring to fig. 3, the crushing roller 2 includes at least one middle plate 21, at least one radial hob 22 and at least one axial hob 23, the radial hob 22 is annularly distributed around the outer edge of the middle plate 21 with the center of the middle plate 21 as a circle center, the radial hob 22 is fixedly located between the radial hobs 22, and the cutting directions of the axial hob 23 and the radial hob 22 are perpendicular to each other.
Set up the rotatory driving piece of drive intermediate lamella 21 on the native restoration equipment, intermediate lamella 21 rotates and drives radial hobbing cutter 22 and axial hobbing cutter 23 and rotate simultaneously, can carry out the cutting of horizontal and two vertical directions to soil, and crushing effect is good, and axial hobbing cutter 23 can promote soil toward the direction of being close to transportation auger 3 when cutting soil, specifically promotes soil and cuts two dual effects of soil.
Referring to fig. 1, the inside hydrojet head 42 that sets up of box 4 is sprayed to the remediation agent, hydrojet head 42 is located the top of transportation auger 3, hydrojet head 42 and the feed liquor pipe 41 intercommunication of carrying the remediation agent, hydrojet head 42 will be sprayed the remediation agent to transportation auger 3 on, the remediation agent gets into in the inside soil of transportation auger 3 through the infiltration hole of transportation auger 3. The remediation agent is a chemical agent which can perform an oxidation reaction with pollutants in the soil, thereby reducing the pollutants.
Further, the repairing agent sprays box 4 and sets up filter 43 in the below of transportation auger 3, and filter 43 is used for filtering the repairing agent from 3 drippage of transportation auger, the repairing agent sprays the one end of box 4's bottom fixed connection recovery tube 44, the other end and the feed liquor pipe 41 intercommunication of recovery tube 44, and recovery tube 44 is used for retrieving the repairing agent, realizes the make full use of repairing agent.
Further, refer to fig. 4, melt the inside air jet 62 and the air circulation fan 63 that sets up of oxygen box 6, air jet 62 and the intake pipe 61 intercommunication of carrying the pure oxygen, air jet 62 can be to the pure oxygen of blowing into in melting oxygen box 6, and the pure oxygen improves the reaction rate of pollutant in the soil during the infiltration hole entering transportation auger 3 inside soil of transportation auger 3 through transportation auger 3, improves remediation efficiency.
Further, the oxygen melting rate is improved, and a heating element 64 for optimizing the temperature of the oxygen melting environment is arranged in the oxygen melting box 6 so as to improve the temperature of the oxygen melting in the soil.
With continued reference to fig. 4, a screw rod 31 is arranged inside the transportation auger 3, a loosening spring 32 for stirring the soil is arranged at the rod part of the screw rod 31 section in the oxygen melting box 6, and the loosening spring 32 is used for loosening the soil in the oxygen melting box 6.
Further, referring to fig. 5, the loosening spring 32 includes a connection portion 321 for the stem portion of the screw rod 31 and a stirring portion 322 for stirring the soil, and the spiral portion of the stirring portion 322 has relative elasticity, so that the impact force is small when the soil is stirred, and the stirring efficiency is high because the stirring portion can be elastically restored by self-elasticity.
Referring to fig. 6, the agitating part 322 includes a spiral supporting part 3221 and a cutting part 3222, and a cutting surface of the cutting part 3222 is located at an outer edge and an inner edge of the supporting part 3221. The cutting portion 3222 may be used to cut soil, further crack the soil, reduce caking of the soil, enhance the oxygen content of the soil, and accelerate drying of the soil. The loosening spring 32 in this embodiment has the dual functions of stirring and cutting, and is simple in structure and practical in function.
Preferably, set up between repairing agent sprays box 4 and the oxygen box 6 and keep apart box 5, keep apart box 5 and connect repairing agent and spray box 4 and oxygen box 6 that melt, keep apart box 5 and set up wiper 51 for wipe the repairing agent on transport auger 3 surface, prevent that repairing agent from dripping to advancing in the oxygen box 6 that melts.
Further, discharge recrushment piece 71 is arranged inside discharge channel 7, and discharge recrushment piece 71 is used for carrying out recrushment to soil again, makes the soil that gets back to the soil more fluffy. In this embodiment, the re-crushing member 71 is a crushing member having the same structure as the crushing roller 2, and its size can be selected according to actual needs.
The soil remediation equipment can be arranged on a tractor, and the tractor drives the remediation equipment to walk.
The process of using the soil remediation equipment to carry out soil remediation is as follows:
a1: in the walking process of the repairing device, the soil shoveling part 11 of the front shovel 1 peels off soil from the soil and enters the crushing part 12;
a2: the middle plate 21 on the crushing roller 2 in the crushing part 12 can drive the radial hob 22 and the axial hob 23 to rotate simultaneously, and can cut soil in the transverse direction and the longitudinal direction;
a3: the cut and crushed soil enters a transport auger 3;
a4: when the soil passes through the oxygen melting box 6, the liquid spraying head 42 sprays the repairing agent onto the transportation auger 3, the repairing agent enters the soil inside the transportation auger 3 through the penetration hole of the transportation auger 3, the repairing agent is a chemical reagent, and the chemical reagent can perform oxidation reaction with pollutants in the soil, so that the pollutants are reduced;
a5: when the soil passes through the repairing agent spraying box 4, the air nozzle 62 can blow pure oxygen into the oxygen melting box 6, and the pure oxygen enters the soil inside the transportation auger 3 through the penetration hole of the transportation auger 3, so that the reaction speed of pollutants in the soil is improved, and the repairing efficiency is improved; meanwhile, the soil loosening spring 32 loosens and cuts the soil in the oxygen melting box 6, and the oxygen melting amount and the oxygen melting efficiency of the soil are improved.
A6: the soil after oxygen melting enters a discharge channel 7 from the transport auger 3;
a7: the crushing roller in the discharging channel 7 crushes the soil again;
a8: from the discharge channel 7 the soil enters the ground again.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A soil remediation method, comprising the steps of:
s1: removing the soil from the ground using the stripper;
s2: crushing the soil by using the crushing piece;
s3: the soil enters a transportation channel;
s4: spraying a remediation agent on the soil in the transportation channel;
s5: carrying out secondary crushing and oxygen transfer on the soil in the transportation channel;
s6: the soil leaves the transport channel;
s7: crushing the soil again by using the crushing piece;
s8: the soil re-enters the ground.
2. The soil remediation method of claim 1, characterized in that, including preceding shovel (1), broken roller (2), transportation auger (3), remediation agent spray box (4), melt oxygen box (6) and discharging channel (7), the discharge end of preceding shovel (1) and the feed end of transportation auger (3) intercommunication, the discharge end and discharging channel (7) intercommunication of transportation auger (3), remediation agent sprays box (4) and melts oxygen box (6) and wraps up in proper order in the outside of transportation auger (3) along the direction of feed of transportation auger (3), the infiltration hole is seted up to the casing of transportation auger (3).
3. The soil remediation device of claim 2 wherein the front shovel (1) comprises an open-topped shovel portion (11) and a sealed-topped breaking portion (12), the breaking portion (12) having internally disposed thereon the breaking rollers (2);
broken roller (2) include at least one intermediate lamella (21), at least one radial hob (22) and at least one axial hob (23), radial hob (22) use the center of intermediate lamella (21) to encircle in the outer fringe of intermediate lamella (21) as the centre of a circle, radial hob (22) are fixed to be located between radial hob (22), cutting direction and the cutting direction mutually perpendicular of radial hob (22) of axial hob (23).
4. The soil remediation device of claim 3, wherein a liquid spray head (42) is arranged inside the remediation agent spraying box (4), the liquid spray head (42) is located above the transport auger (3), and the liquid spray head (42) is communicated with a liquid inlet pipe (41) for conveying the remediation agent.
5. The soil remediation device of claim 4, wherein the remediation agent spraying box (4) is provided with a filter plate (43) below the transport auger (3), the bottom of the remediation agent spraying box (4) is fixedly connected with one end of a recovery pipe (44), and the other end of the recovery pipe (44) is communicated with the liquid inlet pipe (41).
6. The soil remediation device of claim 5, wherein an air jet head (62) and an air circulation fan (63) are provided inside the oxygen melting box (6), the air jet head (62) being in communication with an air inlet pipe (61) for delivering pure oxygen;
and a heating element (64) for optimizing the temperature of the oxygen melting environment is also arranged in the oxygen melting box (6).
7. The soil remediation device of claim 6, wherein an isolation box (5) is arranged between the remediation agent spraying box (4) and the oxygen melting box (6), and a wiping piece (51) for wiping the surface of the transport auger (3) is arranged inside the isolation box (5).
8. The soil remediation device of claim 6, wherein a screw rod (31) is arranged inside the transport auger (3), and a loosening spring (32) for stirring soil is arranged at the rod part of the screw rod (31) section in the oxygen melting box (6).
9. Soil remediation device according to claim 8, wherein the ripping spring (32) comprises a connection portion (321) for the stem portion of the screw rod (31) and an agitation portion (322) for agitating the soil;
the agitating part (322) includes a spiral supporting part (3221) and a cutting part (3222), and the cutting surface of the cutting part (3222) is located at the outer edge and the inner edge of the supporting part (3221).
10. Soil remediation device according to claim 2, wherein the outfeed channel (7) is internally provided with an outfeed recrusher (71).
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| CN202010516812.7A CN111687196B (en) | 2020-06-09 | 2020-06-09 | Soil remediation method and soil remediation equipment |
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| CN202010516812.7A CN111687196B (en) | 2020-06-09 | 2020-06-09 | Soil remediation method and soil remediation equipment |
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| CN112997612A (en) * | 2021-02-18 | 2021-06-22 | 叶大英 | Soil conditioner and soil conditioning method |
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| CN112893438A (en) * | 2021-01-15 | 2021-06-04 | 邹霞 | Pollute soil environmental protection prosthetic devices |
| CN112997612A (en) * | 2021-02-18 | 2021-06-22 | 叶大英 | Soil conditioner and soil conditioning method |
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