Equipment and method for removing oil phase substances from oil-permeable soil

Abstract

This invention discloses an apparatus and method for removing oil phase substances from oil-permeable soil, comprising a main support structure, an oil phase removal mechanism, a raw material conveying mechanism, an auxiliary discharge mechanism, and an oil phase separation and recovery mechanism disposed on the main support structure; the main support structure includes an upward-facing main support housing ring shell; the oil phase removal mechanism includes multiple oil phase removal housing boxes fixed to the outside of the main support housing ring shell, multiple eddy current induction heaters fixed to the outside of the oil phase removal housing boxes, and multiple auxiliary heat-conducting copper balls filled inside the oil phase removal housing boxes; multiple electric heating plates are fixed to the outer wall of the oil phase removal housing boxes; the oil-permeable soil to be treated is heated and removed by multiple heating methods, and the oil-permeable soil to be treated is heated from the outside and inside simultaneously by the various electric heating plates and multiple auxiliary heat-conducting copper balls, so that the oil-permeable soil to be treated is heated more evenly as a whole, which is beneficial to the removal rate of oil phase substances in the oil-permeable soil.

Description

Technical Field

[0001] This invention relates to the field of soil pollution remediation technology, specifically to a device and method for evaporating oil phase substances from oil-leached soil. Background Technology

[0002] Once petroleum pollutants enter the soil, their unique physical and chemical properties can cause persistent and irreparable damage to the soil environment, severely impacting the soil ecology, crops, and human health in the polluted areas.

[0003] The impact on soil physicochemical properties: After petroleum pollutants enter the soil, they can change the composition and structure of soil organic matter, causing changes in the carbon-nitrogen ratio and carbon-phosphorus ratio of soil organic matter.

[0004] The impact of petroleum pollutants on crops varies. The main adverse effects on crops include decreased germination and seedling emergence rates, delayed growth period, prolonged vegetative growth and late maturity, decreased fruit setting rate, and reduced resistance to lodging, diseases, and pests.

[0005] Regarding its impact on human health, petroleum is a mixture of multiple components, each with varying degrees of toxicity. PAHs are the most toxic components of petroleum, exhibiting carcinogenic, teratogenic, and mutagenic properties. Crops can absorb residual petroleum pollutants, and the toxic substances within can indirectly affect human health through the food chain.

[0006] Currently, the removal efficiency of oil-phase substances in soil is not good and needs further improvement. Summary of the Invention

[0007] The purpose of this invention is to provide an apparatus and method for evaporating oil phase substances from oil-permeable soil, which can effectively separate and remove oil phase substances from oil-permeable soil.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A device for removing oil phase substances from oil-permeable soil includes a main support structure, an oil phase evaporation mechanism, a raw material conveying mechanism, an auxiliary material discharge mechanism, and an oil phase separation and recovery mechanism installed on the main support structure.

[0010] The main support structure includes an upward-facing main support housing ring shell;

[0011] The oil phase evaporation removal mechanism includes multiple oil phase evaporation removal containers fixed on the outside of the main support and receiving ring shell. The oil phase evaporation removal containers are vertically connected box structures. Multiple eddy current induction heaters are fixed on the outside of the oil phase evaporation removal containers, and multiple auxiliary heat-conducting copper balls are filled inside the oil phase evaporation removal containers.

[0012] Eddy current induction heaters can heat auxiliary heat-conducting copper balls through electromagnetic induction. The heated auxiliary heat-conducting copper balls then heat the oil-permeable soil, which helps to make the overall heating of the oil-permeable soil more uniform.

[0013] The main support ring shell has multiple evaporation flow holes on its side wall that are connected to the inside of the oil phase evaporation container. The diameter of the evaporation flow holes is 0.5 to 2 mm.

[0014] The bottom and top of the oil phase evaporation container are movably connected with evaporation chamber sealing plates;

[0015] Multiple electric heating plates are fixed to the outer wall of the oil phase evaporation container;

[0016] The main support housing ring shell has an oil phase discharge cover fixed to its top, and multiple oil phase discharge main pipes connected to its interior are fixed to the outside of the oil phase discharge cover.

[0017] Preferably, the raw material conveying mechanism includes a raw material conveying support plate and multiple raw material conveying pipes that are fixedly connected to the raw material conveying support plate and extend vertically.

[0018] The main support housing ring shell has a raw material conveying bracket fixed to the outside. The lower end of the raw material conveying bracket has a horizontally placed conveying drive support cylinder. The conveying drive support cylinder is slidably connected inside the conveying drive support cylinder. The raw material conveying support plate is fixedly connected to the outer end of the conveying drive slide cylinder.

[0019] The conveyor drive support cylinder is equipped with a conveyor displacement drive rod;

[0020] Multiple vertically extending heat-conducting ball conveying pipes are fixed on the raw material conveying support plate, and the lower ends of the heat-conducting ball conveying pipes are connected to the end conveying pipes through deflecting corrugated pipes.

[0021] Multiple end deflection drive rods are installed between the outer side of the end conveying pipe and the raw material conveying support plate.

[0022] Note: The raw material conveying mechanism facilitates the quick and easy transport of the oil-leaked soil to be treated into the oil phase evaporation container, and also transports each auxiliary heat-conducting copper ball to mix the oil-leaked soil evenly.

[0023] Preferably, the sealing plate of the desiccant chamber is connected to the oil phase desiccant container via an assisted opening and closing mechanism. The assisted opening and closing mechanism includes a sealing plate drive rod for driving the sealing plate of the desiccant chamber to deflect, and the sealing plate drive rod is a hydraulic drive rod.

[0024] The sealing plate of the desiccant chamber is connected to the outer wall of the oil phase desiccant chamber via a deflection fixing hinge. The outer end of the sealing plate drive rod is connected to the outer wall of the oil phase desiccant chamber via a first fixing hinge, and the inner end of the sealing plate drive rod is connected to the sealing plate of the desiccant chamber via a second fixing hinge.

[0025] Note: The assisted opening and closing mechanism facilitates the independent opening and closing of the upper and lower ends of the oil phase evaporation containment box.

[0026] Preferably, the auxiliary discharge mechanism includes an auxiliary discharge vibrating plate, a vertically extending vibrating hammer receiving cylinder is fixed on the top of the auxiliary discharge vibrating plate, and a vibrating hammer column is slidably connected inside the vibrating hammer receiving cylinder;

[0027] The vibratory hammer column is driven by a linear motor structure to move along the axis of the vibratory hammer receiving cylinder;

[0028] A vibration hammer fitting block is fixed at the bottom of the vibratory hammer receiving cylinder;

[0029] The main support housing ring shell has a discharge and collection support frame fixed on its outer side. Multiple winches are fixed on the discharge and collection support frame, and the winch cables are fixedly connected to the top of the auxiliary discharge vibrating plate.

[0030] Note: The auxiliary discharge mechanism uses impact and vibration energy to help to quickly and smoothly discharge the treated oily soil from the oil phase evaporation container, facilitating the evaporation treatment of the next batch of oily soil.

[0031] Preferably, a heat insulation mechanism is provided around the outside of the main support mechanism. The heat insulation mechanism includes a heat insulation ring shell that surrounds and is fixed to the outside of the main support receiving ring shell. The heat insulation ring shell is composed of a heat insulation inner shell and a heat insulation outer shell.

[0032] A thermal insulation space is formed between the outer wall of the thermal insulation inner shell and the inner wall of the thermal insulation outer shell, and the thermal insulation space is in a vacuum state.

[0033] Note: The heat insulation mechanism surrounds the entire processing unit, which helps to keep the oil phase evaporation tanks warm and prevents a large amount of heat loss from the oil phase evaporation tanks, thus avoiding energy waste.

[0034] Preferably, the heat insulation mechanism is provided with a raw material preheating mechanism, which includes a preheating conveying pipe fixed in the heat insulation space. One end of the preheating conveying pipe is connected to the material conveyor, and the other end of the preheating conveying pipe is connected to the raw material conveying mechanism.

[0035] Note: Excess radiant heat is used to preheat the oil-seeped soil to be treated, saving energy.

[0036] Preferably, the oil phase separation and recovery mechanism includes multiple oil phase separation and recovery rings fixed within the main support housing ring shell, the multiple oil phase separation and recovery rings extending vertically and arranged coaxially;

[0037] Multiple oil phase recovery ring grooves with upward openings are fixed on the inner wall of the oil phase separation and recovery ring, and an oil phase recovery pipe connected to the inside of the oil phase recovery ring groove is fixed at the bottom of the oil phase recovery ring groove.

[0038] Multiple oil phase guide plates are fixed to the outer wall of the oil phase separation and recovery ring. An upward-facing end recovery tank is fixed to the lower end of the oil phase separation and recovery ring. An end discharge pipe connected to the inside of the end recovery tank is fixed to the bottom of the end recovery tank.

[0039] Note: The oil phase separation and recovery unit can liquefy and recover most of the oil phase substances that are evaporated from the soil. The remaining small amount of oil phase substances will be discharged from the various oil phase discharge mains and then centrally recovered.

[0040] Preferably, a method for removing oil phase substances from oil-permeable soil, based on the above-mentioned equipment for removing oil phase substances from oil-permeable soil, includes the following steps:

[0041] S1. Loading and positioning:

[0042] In the initial state, the sealing plate of the top of the oil phase removal container is in the open state, and the sealing plate of the bottom of the oil phase removal container is in the closed state.

[0043] The oil-permeable soil to be treated is preheated by the raw material preheating mechanism and then sent into the oil phase evaporation container by the raw material conveying mechanism.

[0044] During the filling process of oil-permeable soil, the auxiliary heat-conducting copper balls are transported to the heat-conducting ball conveying pipe by a conveyor. The auxiliary heat-conducting copper balls are discharged from the lower end of the end conveying pipe through the deflection corrugated pipe and fall into the oil phase evaporation container, so that the auxiliary heat-conducting copper balls are mixed with the oil-permeable soil.

[0045] S2, heating and evaporation:

[0046] Power on each electric heating plate and use multiple electric heating plates to heat the oil-leaking soil in the oil phase evaporation container, keeping the oil-leaking soil temperature at 300-400℃, and evaporating the oil-leaking soil for 40-80 minutes.

[0047] At the same time, each eddy current induction heater generates an induced current in the auxiliary heat-conducting copper ball, causing the auxiliary heat-conducting copper ball to heat up, and multiple auxiliary heat-conducting copper balls are used to assist in heating the oil-seeped soil.

[0048] When the oil-permeable soil is heated, the oil phase substances in the soil turn into vapor and volatilize, entering the interior of the main support containment ring shell through the vaporization flow holes on the side wall of the main support containment ring shell.

[0049] S3, Oil Phase Recovery:

[0050] The air pump is used to evacuate the inside of the main support ring shell through each oil phase exhaust pipe, so that the inside of the main support ring shell is in a negative pressure state. The volatile oil phase substances are recovered by the oil phase separation and recovery mechanism.

[0051] As the volatile oil phase material flows from bottom to top within the main support ring shell, it will liquefy as it passes through each oil phase separation and recovery ring. The liquefied oil phase material flows along the side wall of the oil phase separation and recovery ring into each oil phase recovery ring trough and the end recovery trough. The oil phase material collected in the oil phase recovery ring trough and the end recovery trough is then discharged through the oil phase recovery pipe and the end external discharge pipe and centrally treated.

[0052] S4, Soil Disposal:

[0053] Open the sealing plates at the top and bottom of the oil phase evaporation container to allow the oil-leaked soil that has been evaporated to be discharged from the bottom of the oil phase evaporation container.

[0054] An auxiliary discharge mechanism is used to assist in the discharge of oil-leached soil;

[0055] S5. Screening and recovery:

[0056] The mixture of oil-permeable soil after descaling and auxiliary heat-conducting copper balls is screened to separate the auxiliary heat-conducting copper balls, which are then cleaned and reused.

[0057] S6. Repeat steps S1 to S5 above until all the oil-permeable soil to be treated has been treated.

[0058] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects:

[0059] 1. The present invention has a reasonable structural design and uses multiple heating methods to heat and evaporate the oil-leaking soil to be treated. Each electric heating plate and multiple auxiliary heat-conducting copper balls are used to heat the oil-leaking soil from the outside and inside at the same time, so that the oil-leaking soil is heated more evenly as a whole, which is beneficial to the removal rate of oil phase substances in the oil-leaking soil.

[0060] 2. The present invention is easy to operate. The auxiliary discharge mechanism uses impact vibration energy to help the treated oily soil in the oil phase evaporation container to be discharged quickly and smoothly, which facilitates the evaporation treatment of the next batch of oily soil.

[0061] 3. The oil phase separation and recovery mechanism in this invention can liquefy and recover most of the oil phase substances that are evaporated from the soil, and the remaining small amount of oil phase substances will be discharged from each oil phase discharge main pipe and then centrally recovered. Attached Figure Description

[0062] Figure 1 This is the front view of the present invention;

[0063] Figure 2 yes Figure 1 The left view;

[0064] Figure 3yes Figure 1 Top view;

[0065] Figure 4 This is a schematic diagram of the raw material conveying mechanism of the present invention;

[0066] Figure 5 This is a schematic diagram of the structure of the heat-conducting ball delivery tube of the present invention;

[0067] Figure 6 This is a schematic diagram of the structure of the opening and closing mechanism of the present invention;

[0068] Figure 7 This is a schematic diagram of the auxiliary material feeding mechanism of the present invention;

[0069] Figure 8 This is a schematic diagram of the structure of the vibratory hammer receiving cylinder of the present invention;

[0070] Figure 9 This is a schematic diagram of the oil phase separation and recovery mechanism of the present invention.

[0071] In the figure, 10-Main support mechanism, 11-Main support housing ring shell, 12-Oil phase discharge cover, 13-Oil phase discharge main pipe, 20-Oil phase evaporation removal mechanism, 200-Auxiliary heat-conducting copper ball, 21-Oil phase evaporation removal housing, 211-Evaporation removal housing sealing plate, 22-Electric heating plate, 23-Eddy current induction heater, 24-Raw material conveying mechanism, 241-Raw material conveying support plate, 242-Raw material conveying pipe, 243-Raw material conveying bracket, 244-Conveying drive support cylinder, 245-Conveying drive sliding cylinder, 246-Conveying displacement drive rod, 251-Heat-conducting ball conveying pipe, 252-Deflecting bellows, 253-End conveying pipe, 254-End deflection drive rod, 26-Assisted opening and closing mechanism, 261-Sealing plate drive rod, 2 62-Deflection fixed hinge, 263-First fixed hinge, 264-Second fixed hinge, 31-Auxiliary discharge mechanism, 311-Auxiliary discharge vibrating plate, 312-Vibration hammer receiving cylinder, 313-Vibration hammer column, 314-Vibration hammer mating block, 315-Discharge and storage support frame, 316-Winder, 317-Cable, 32-Heat insulation mechanism, 321-Heat insulation ring shell, 322-Heat insulation inner shell, 323-Heat insulation outer shell, 33-Raw material preheating mechanism, 331-Preheating conveying pipe, 40-Oil phase separation and recovery mechanism, 41-Oil phase separation and recovery ring, 411-Oil phase recovery ring groove, 412-Oil phase recovery pipe, 413-Oil phase guide plate, 414-End recovery groove, 415-End external discharge pipe. Detailed Implementation

[0072] The following is combined Figures 1-9The present invention will be described in detail. For ease of description, the orientations mentioned below are defined as follows: The directions of up, down, left, right, front, and back mentioned below are consistent with the directions of up, down, left, right, front, and back in the projection relationship of the respective main view or structural schematic diagram.

[0073] Example 1:

[0074] A device for evaporating oil phase substances from oil-permeable soil, such as Figure 1 As shown, it includes a main support structure 10, an oil phase evaporation removal mechanism 20, a raw material conveying mechanism 24, an auxiliary discharge mechanism 31, and an oil phase separation and recovery mechanism 40, all mounted on the main support structure 10.

[0075] The main support mechanism 10 includes an upward-opening main support receiving ring shell 11;

[0076] The oil phase evaporation removal mechanism 20 includes multiple oil phase evaporation removal containers 21 fixed to the outside of the main support and receiving ring shell 11. The oil phase evaporation removal container 21 is a vertically through box structure.

[0077] The main supporting ring shell 11 has multiple evaporation flow holes on its side wall that are connected to the inside of the oil phase evaporation container 21. The diameter of the evaporation flow holes is 0.5 to 2 mm.

[0078] The lower end and the top of the oil phase evaporation container 21 are movably connected to the evaporation box sealing plate 211;

[0079] Multiple electric heating plates 22 are fixed to the outer wall of the oil phase evaporation container 21;

[0080] The main body supports and accommodates the ring shell 11, and an oil phase discharge cover 12 is fixed to the top. Multiple oil phase discharge main pipes 13 connected to the inside of the oil phase discharge cover 12 are fixed to the outside of the cover.

[0081] like Figure 1 As shown, multiple eddy current induction heaters 23 are fixed on the outside of the oil phase evaporation container 21.

[0082] like Figure 3 As shown, the oil phase evaporation container 21 is filled with multiple auxiliary heat-conducting copper balls 200.

[0083] like Figure 2 As shown, Figure 4 As shown, the raw material conveying mechanism 24 includes a raw material conveying support plate 241 and multiple raw material conveying pipes 242 that are fixedly connected to the raw material conveying support plate 241 and extend vertically.

[0084] A raw material conveying bracket 243 is fixed on the outside of the main support housing ring shell 11. A horizontally placed conveying drive support cylinder 244 is fixed at the lower end of the raw material conveying bracket 243. A conveying drive sliding cylinder 245 is slidably connected inside the conveying drive support cylinder 244. The raw material conveying support plate 241 is fixedly connected to the outer end of the conveying drive sliding cylinder 245.

[0085] The conveying drive support cylinder 244 is provided with a conveying displacement drive rod 246. The conveying displacement drive rod 246 is an electrically controlled telescopic rod. The outer end of the conveying displacement drive rod 246 is fixedly connected to the inner end of the conveying drive support cylinder 244, and the inner end of the conveying displacement drive rod 246 is fixedly connected to the inner end of the conveying drive sliding cylinder 245.

[0086] like Figure 5 As shown, multiple vertically extending heat-conducting ball conveying pipes 251 are fixed on the raw material conveying support plate 241, and the lower end of the heat-conducting ball conveying pipes 251 is connected to the end conveying pipe 253 through the deflection corrugated pipe 252.

[0087] Multiple end deflection drive rods 254 are provided between the outer side of the end conveying pipe 253 and the raw material conveying support plate 241. The end deflection drive rods 254 are electrically controlled telescopic rods. The outer rod end of the end deflection drive rod 254 is connected to the raw material conveying support plate 241 through a ball joint, and the inner rod end of the end deflection drive rod 254 is fixedly connected to the outer side of the end conveying pipe 253 through a ball joint.

[0088] like Figure 7 , Figure 8 As shown, the auxiliary discharge mechanism 31 includes an auxiliary discharge vibrating plate 311, and a vertically extending vibrating hammer receiving cylinder 312 is fixed on the top of the auxiliary discharge vibrating plate 311. A vibrating hammer column 313 is slidably connected inside the vibrating hammer receiving cylinder 312.

[0089] The vibratory hammer column 313 is driven by a linear motor structure to move along the axis of the vibratory hammer receiving cylinder 312. The inner wall of the vibratory hammer receiving cylinder 312 has a stator of the linear motor, and the outer wall of the vibratory hammer column 313 has a mover of the linear motor.

[0090] A vibration hammer fitting block 314 is fixed at the bottom of the vibration hammer receiving cylinder 312;

[0091] The main support housing ring shell 11 is fixed with a discharge and collection support frame 315. Multiple winches 316 are fixed on the discharge and collection support frame 315. The cable 317 of the winch 316 is fixedly connected to the top of the auxiliary discharge vibration plate 311.

[0092] like Figure 3 As shown, Figure 9As shown, the oil phase separation and recovery mechanism 40 includes a plurality of oil phase separation and recovery rings 41 fixed in the main body support receiving ring shell 11. The plurality of oil phase separation and recovery rings 41 extend vertically and are arranged coaxially.

[0093] Multiple oil phase recovery ring grooves 411 with upward openings are fixed on the inner wall of the oil phase separation and recovery ring 41, and an oil phase recovery pipe 412 connected to the inside of the oil phase recovery ring groove 411 is fixed at the bottom of the oil phase recovery ring groove 411.

[0094] Multiple oil phase guide plates 413 are fixed to the outer wall of the oil phase separation and recovery ring 41. An upward-opening end recovery trough 414 is fixed to the lower end of the oil phase separation and recovery ring 41. An end external discharge pipe 415 connected to the inside of the end recovery trough 414 is fixed to the bottom of the end recovery trough 414.

[0095] Example 2:

[0096] Based on Example 1, such as Figure 2 As shown, the sealing plate 211 of the desiccant chamber is connected to the oil phase desiccant container 21 via the assisted opening and closing mechanism 26, as follows: Figure 6 As shown, the power-assisted opening and closing mechanism 26 includes a sealing plate drive rod 261 for driving the deflection of the sealing plate 211 of the evaporation chamber. The sealing plate drive rod 261 is a hydraulic drive rod.

[0097] The sealing plate 211 of the desiccant chamber is connected to the outer wall of the oil phase desiccant chamber 21 via a deflection fixing hinge 262. The outer end of the sealing plate drive rod 261 is connected to the outer wall of the oil phase desiccant chamber 21 via a first fixing hinge 263. The inner end of the sealing plate drive rod 261 is connected to the sealing plate 211 of the desiccant chamber via a second fixing hinge 264.

[0098] Example 3:

[0099] Based on Example 2, such as Figure 1 As shown, the main support mechanism 10 is surrounded by a heat insulation mechanism 32. The heat insulation mechanism 32 includes a heat insulation ring shell 321 that surrounds and is fixed to the outside of the main support receiving ring shell 11. The heat insulation ring shell 321 is composed of a heat insulation inner shell 322 and a heat insulation outer shell 323.

[0100] A thermal insulation space 320 is formed between the outer wall of the thermal insulation inner shell 322 and the inner wall of the thermal insulation outer shell 323. The thermal insulation space 320 is in a vacuum state.

[0101] Example 4:

[0102] Based on Example 3, such as Figure 1As shown, the heat insulation mechanism 32 is equipped with a raw material preheating mechanism 33. The raw material preheating mechanism 33 includes a preheating conveying pipe 331 fixed in the heat insulation space 320. One end of the preheating conveying pipe 331 is connected to the material conveyor, and the other end of the preheating conveying pipe 331 is connected to the raw material conveying pipe 242.

[0103] Example 5:

[0104] This embodiment describes a method for removing oil phase substances from oil-permeable soil by evaporation. Based on the equipment for removing oil phase substances from oil-permeable soil in Embodiment 1 above, the method includes the following steps:

[0105] S1. Loading and positioning:

[0106] In the initial state, the sealing plate 211 of the top of the oil phase evaporation container 21 is in the open state, and the sealing plate 211 of the bottom of the oil phase evaporation container 21 is in the closed state.

[0107] The oil-permeable soil to be treated is preheated by the raw material preheating mechanism 33 and then sent into the oil phase evaporation container 21 by the raw material conveying mechanism 24.

[0108] During the filling process of oil-permeable soil, the auxiliary heat-conducting copper balls 200 are transported to the heat-conducting ball conveying pipe 251 by a conveyor. The auxiliary heat-conducting copper balls 200 are discharged from the lower end of the end conveying pipe 253 after passing through the deflection corrugated pipe 252 and fall into the oil phase evaporation container 21, so that the auxiliary heat-conducting copper balls 200 are mixed with the oil-permeable soil.

[0109] When conveying the auxiliary heat-conducting copper ball 200, the end conveying pipe 253 is driven by the deflection drive rod 254 at each end to deflect and swing periodically, so that the auxiliary heat-conducting copper ball 200 falls into the oil-permeable soil and mixes more evenly.

[0110] When filling the oil-permeable soil, the conveying displacement drive rod 246 is used to drive the conveying drive sliding cylinder 245 together with the raw material conveying support plate 241 to move, so that the raw material conveying pipe 242 is positioned directly above the oil phase evaporation container 21.

[0111] After the oil-permeable soil is filled, the raw material conveying pipe 242 is moved away from the position directly above the oil phase evaporation container 21 by the conveying displacement drive rod 246 to avoid interference between the raw material conveying pipe 242 and the auxiliary discharge mechanism 31 during operation.

[0112] S2, heating and evaporation:

[0113] Power on each electric heating plate 22 and use multiple electric heating plates 22 to heat the oil-leaking soil in the oil phase evaporation container 21, keeping the oil-leaking soil temperature at 300℃, and perform evaporation treatment on the oil-leaking soil for 40 minutes.

[0114] At the same time, each eddy current induction heater 23 generates an induced current in the auxiliary heat-conducting copper ball 200, causing the auxiliary heat-conducting copper ball 200 to heat up, and multiple auxiliary heat-conducting copper balls 200 are used to assist in heating the oil-seeped soil.

[0115] When the oil-permeable soil is heated, the oil phase substances in the soil turn into vapor and volatilize, entering the interior of the main support and containment ring 11 through the vaporization flow holes on the side wall of the main support and containment ring 11.

[0116] S3, Oil Phase Recovery:

[0117] The air pump is used to pump air into the interior of the main support and containment ring shell 11 through each oil phase discharge main pipe 13, so that the interior of the main support and containment ring shell 11 is in a negative pressure state, and the volatile oil phase substances are recovered by the oil phase separation and recovery mechanism 40.

[0118] As the volatile oil phase substances flow from bottom to top within the main support and containment ring shell 11, they will liquefy as they pass through each oil phase separation and recovery ring 41. The liquefied oil phase substances flow along the side wall of the oil phase separation and recovery ring 41 into each oil phase recovery ring groove 411 and the end recovery groove 414. The oil phase substances collected in the oil phase recovery ring groove 411 and the end recovery groove 414 are then discharged and centrally processed through the oil phase recovery pipe 412 and the end external discharge pipe 415.

[0119] S4, Soil Disposal:

[0120] Open the sealing plates 211 at the top and bottom of the oil phase removal container 21 to allow the oil-leaked soil that has been removed to be discharged from the bottom of the oil phase removal container 21.

[0121] The auxiliary discharge mechanism 31 is used to assist in the discharge of oil-seeping soil. The cable 317 of the winch 316 is released, causing the auxiliary discharge vibrating plate 311 to move down into the oil phase evaporation container 21 and fall on top of the oil-seeping soil. The linear motor drives the vibrating hammer column 313 to reciprocate in the vibrating hammer container 312. The vibrating hammer column 313 collides with the vibrating hammer mating block 314 to generate periodic vibration, and the vibration is transmitted to the oil-seeping soil through the auxiliary discharge vibrating plate 311. The oil-seeping soil is driven to move from top to bottom and be discharged from the inside of the oil phase evaporation container 21.

[0122] S5. Screening and recovery:

[0123] The mixture of oil-permeable soil after evaporation treatment and auxiliary heat-conducting copper balls 200 is screened to separate the auxiliary heat-conducting copper balls 200 and clean them. The auxiliary heat-conducting copper balls 200 are then reused.

[0124] S6. Repeat steps S1 to S5 above until all the oil-permeable soil to be treated has been treated.

[0125] Example 6:

[0126] This embodiment describes a method for removing oil phase substances from oil-permeable soil. It is based on the equipment for removing oil phase substances from oil-permeable soil in Embodiment 2 above. The difference from Embodiment 5 is that in step S1, the sealing plate drive rod 261 drives the sealing plate 211 of the evaporation box to rotate around the pivot of the deflection fixing hinge 262, thereby controlling the opening and closing of the sealing plate 211 of the evaporation box relative to the oil phase evaporation container 21.

[0127] Example 7:

[0128] This embodiment describes a method for removing oil phase substances from oil-permeable soil. It is based on the equipment for removing oil phase substances from oil-permeable soil in Embodiment 4 above. The difference from Embodiment 6 is that in step S1, the oil-permeable soil to be treated is first transported to the raw material transport pipe 242 through the preheating transport pipe 331. The oil-permeable soil is discharged from the lower end of the raw material transport pipe 242 and falls into the oil phase removal container 21.

[0129] Example 8:

[0130] The difference from Example 7 is that the temperature of the oil-permeable soil was maintained at 320°C, and the oil-permeable soil was treated by steaming for 50 minutes.

[0131] Example 9:

[0132] The difference from Example 7 is that the temperature of the oil-permeable soil was maintained at 340°C, and the oil-permeable soil was treated by steaming for 60 minutes.

[0133] Example 10:

[0134] The difference from Example 7 is that the temperature of the oil-permeable soil was maintained at 360°C, and the oil-permeable soil was treated by steaming for 70 minutes.

[0135] Example 11:

[0136] The difference from Example 7 is that the temperature of the oil-permeable soil was maintained at 380°C, and the oil-permeable soil was treated by steaming for 70 minutes.

[0137] Example 12:

[0138] The difference from Example 7 is that the temperature of the oil-permeable soil was maintained at 400°C, and the oil-permeable soil was treated by steaming for 80 minutes.

Claims

1. A device for evaporating oil phase substances from oil-permeable soil, characterized in that, It includes a main support structure (10), an oil phase evaporation removal mechanism (20), a raw material conveying mechanism (24), an auxiliary discharge mechanism (31), and an oil phase separation and recovery mechanism (40) installed on the main support structure (10); The main support mechanism (10) includes an upward-opening main support receiving ring shell (11); The oil phase evaporation removal mechanism (20) includes multiple oil phase evaporation removal containers (21) fixed on the outside of the main body support and receiving ring shell (11). The oil phase evaporation removal container (21) is a vertically through box structure. Multiple eddy current induction heaters (23) are fixed on the outside of the oil phase evaporation removal container (21). Multiple auxiliary heat-conducting copper balls (200) are filled inside the oil phase evaporation removal container (21). The main supporting ring shell (11) has multiple evaporation flow holes on its side wall that are connected to the interior of the oil phase evaporation container (21); The lower end and the top of the oil phase evaporation container (21) are movably connected to a sealing plate (211) for the evaporation container; Multiple electric heating plates (22) are fixed on the outer wall of the oil phase evaporation container (21); The main body supporting the ring shell (11) has an oil phase discharge cover (12) fixed on top, and multiple oil phase discharge main pipes (13) connected to its interior are fixed on the outside of the oil phase discharge cover (12).

2. The device for removing oil phase substances from oil-permeable soil according to claim 1, characterized in that, The raw material conveying mechanism (24) includes a raw material conveying support plate (241) and multiple raw material conveying pipes (242) that are fixedly connected to the raw material conveying support plate (241) and extend vertically. The main body supporting housing ring shell (11) is fixed with a raw material conveying bracket (243) on the outside. The raw material conveying bracket (243) is fixed with a horizontally placed conveying drive support cylinder (244) at the lower end. The conveying drive support cylinder (244) is slidably connected with a conveying drive sliding cylinder (245). The raw material conveying support plate (241) is fixedly connected to the outer end of the conveying drive sliding cylinder (245). The conveying drive support cylinder (244) is provided with a conveying displacement drive rod (246); Multiple vertically extending heat-conducting ball conveying pipes (251) are fixed on the raw material conveying support plate (241), and the lower end of the heat-conducting ball conveying pipes (251) is connected to the end conveying pipe (253) through the deflection corrugated pipe (252). Multiple end deflection drive rods (254) are provided between the outer side of the end conveying pipe (253) and the raw material conveying support plate (241).

3. The device for removing oil phase substances from oil-permeable soil according to claim 1, characterized in that, The sealing plate (211) of the desiccant chamber is connected to the oil phase desiccant container (21) through the assisted opening and closing mechanism (26). The assisted opening and closing mechanism (26) includes a sealing plate drive rod (261) for driving the sealing plate (211) of the desiccant chamber to deflect. The sealing plate drive rod (261) is a hydraulic drive rod. The sealing plate (211) of the desiccant chamber is connected to the outer wall of the oil phase desiccant chamber (21) via a deflection fixing hinge (262). The outer rod end of the sealing plate drive rod (261) is connected to the outer wall of the oil phase desiccant chamber (21) via a first fixing hinge (263). The inner rod end of the sealing plate drive rod (261) is connected to the sealing plate (211) of the desiccant chamber via a second fixing hinge (264).

4. The device for removing oil phase substances from oil-permeable soil according to claim 1, characterized in that, The auxiliary discharge mechanism (31) includes an auxiliary discharge vibrating plate (311), and a vertically extending vibrating hammer receiving cylinder (312) is fixed on the top of the auxiliary discharge vibrating plate (311). A vibrating hammer column (313) is slidably connected inside the vibrating hammer receiving cylinder (312). The vibratory hammer column (313) is driven by a linear motor structure to move along the axis of the vibratory hammer receiving cylinder (312); The bottom of the vibratory hammer receiving cylinder (312) is fixed with a vibratory hammer mating block (314); The main support housing ring shell (11) is fixed with a discharge and collection support frame (315) on the outside. Multiple winches (316) are fixed on the discharge and collection support frame (315). The cable (317) of the winch (316) is fixedly connected to the top of the auxiliary discharge vibration plate (311).

5. The device for removing oil phase substances from oil-permeable soil according to claim 1, characterized in that, The main support mechanism (10) is surrounded by a heat insulation mechanism (32), which includes a heat insulation ring shell (321) that surrounds and is fixed to the outside of the main support receiving ring shell (11). The heat insulation ring shell (321) is composed of a heat insulation inner shell (322) and a heat insulation outer shell (323). A heat-insulating space (320) is formed between the outer wall of the heat-insulating inner shell (322) and the inner wall of the heat-insulating outer shell (323), and the heat-insulating space (320) is in a vacuum state.

6. The device for removing oil phase substances from oil-permeable soil according to claim 5, characterized in that, The heat insulation mechanism (32) is provided with a raw material preheating mechanism (33), which includes a preheating conveying pipe (331) fixed in the heat insulation space (320). One end of the preheating conveying pipe (331) is connected to the material conveyor, and the other end of the preheating conveying pipe (331) is connected to the raw material conveying mechanism (24).

7. The device for removing oil phase substances from oil-permeable soil according to claim 6, characterized in that, The oil phase separation and recovery mechanism (40) includes a plurality of oil phase separation and recovery rings (41) fixed in the main body support receiving ring shell (11), and the plurality of oil phase separation and recovery rings (41) extend vertically and are arranged coaxially; The inner wall of the oil phase separation and recovery ring (41) is fixed with a plurality of oil phase recovery ring grooves (411) with openings facing upwards, and the bottom of the oil phase recovery ring groove (411) is fixed with an oil phase recovery pipe (412) that communicates with its interior. Multiple oil phase guide plates (413) are fixed to the outer wall of the oil phase separation and recovery ring (41). An upward-opening end recovery trough (414) is fixed to the lower end of the oil phase separation and recovery ring (41). An end external discharge pipe (415) connected to the inside of the end recovery trough (414) is fixed to the bottom of the end recovery trough (414).

8. A method for removing oil phase substances from oil-permeable soil, based on the apparatus for removing oil phase substances from oil-permeable soil as described in claim 7, characterized in that... The method includes the following steps: S1. Loading and positioning: In the initial state, the sealing plate (211) of the top of the oil phase evaporation container (21) is in the open state, and the sealing plate (211) of the bottom of the oil phase evaporation container (21) is in the closed state. The oil-permeable soil to be treated is preheated by the raw material preheating mechanism (33) and then sent into the oil phase evaporation container (21) by the raw material conveying mechanism (24); During the filling process of the oil-permeable soil, the auxiliary heat-conducting copper balls (200) are transported to the heat-conducting ball conveying pipe (251) by a conveyor. The auxiliary heat-conducting copper balls (200) pass through the deflection corrugated pipe (252) and are finally discharged from the lower end of the end conveying pipe (253) and fall into the oil phase evaporation container (21), so that the auxiliary heat-conducting copper balls (200) are mixed with the oil-permeable soil. S2, heating and evaporation: Power on each electric heating plate (22) and use multiple electric heating plates (22) to heat the oil-seeping soil in the oil phase evaporation container (21) so that the temperature of the oil-seeping soil is maintained at 300-400℃ and the oil-seeping soil is evaporated for 40-80 minutes. At the same time, each eddy current induction heater (23) generates an induced current in the auxiliary heat-conducting copper ball (200), causing the auxiliary heat-conducting copper ball (200) to heat up, and multiple auxiliary heat-conducting copper balls (200) are used to assist in heating the oil-seeped soil; After the oil-permeable soil is heated, the oil phase substances in the soil turn into vapor and volatilize, and enter the interior of the main support and containment ring shell (11) through the vaporization flow hole on the side wall of the main support containment ring shell (11); S3, Oil Phase Recovery: The air pump is used to pump air into the interior of the main support and containment ring shell (11) through each oil phase discharge main pipe (13), so that the interior of the main support and containment ring shell (11) is in a negative pressure state, and the volatile oil phase substances are recovered by the oil phase separation and recovery mechanism (40). As the volatile oil phase material flows from bottom to top within the main support and containment ring shell (11), it will liquefy when passing through each oil phase separation and recovery ring (41). The liquefied oil phase material flows along the side wall of the oil phase separation and recovery ring (41) into each oil phase recovery ring trough (411) and the end recovery trough (414). The oil phase material collected in the oil phase recovery ring trough (411) and the end recovery trough (414) is then discharged through the oil phase recovery pipe (412) and the end external discharge pipe (415) and centrally processed. S4, Soil Disposal: Open the sealing plates (211) at the top and bottom of the oil phase evaporation container (21) so that the oily soil that has been evaporated can be discharged from the bottom of the oil phase evaporation container (21). The oil-seeped soil is discharged using an auxiliary discharge mechanism (31); S5. Screening and recovery: The mixture of oil-permeable soil after evaporation treatment and auxiliary heat-conducting copper balls (200) is screened to separate the auxiliary heat-conducting copper balls (200) and clean them. The auxiliary heat-conducting copper balls (200) are then reused. S6. Repeat steps S1 to S5 above until all the oil-permeable soil to be treated has been treated.

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