Device for efficiently degrading high-concentration petroleum hydrocarbon in soil

Abstract

The invention belongs to the technical field of remediation of soil pollutants, and particularly relates to a device for efficiently degrading high-concentration petroleum hydrocarbon in soil, the device comprises a feeding module, a conveying module and a thermal desorption module, the conveying module is arranged below the feeding module, the feeding module is connected with the thermal desorption module through the conveying module, and the thermal desorption module is connected with the feeding module through the conveying module. The petroleum hydrocarbon degradation device further comprises a motor and a support, the support is installed on the surface of the feeding module, the surface of the support is rotationally connected with a rotating shaft, the rotating shaft is driven by the motor, a ram is matched with a comb plate, impurities in soil can be picked out, the situation that the soil is wrapped by a plastic bag is avoided, and the degradation effect is good. The problems that the degradation efficiency is reduced and the plastic bags are adhered to the roller wall of the thermal desorption roller and the later cleaning is inconvenient are solved, the degradation efficiency is improved, and meanwhile, the pollution to the environment after the soil with the plastic bags is backfilled can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of soil pollutant restoration, and specifically is a device for efficiently degrading high-concentration petroleum hydrocarbons in soil. Background Art

[0002] Petroleum hydrocarbons originally refer to a mixture of hydrocarbons found in crude oil. It is one of the widely existing organic pollutants in the environment. During the extraction, processing and utilization of petroleum, more and more petroleum may enter the soil environment and the ocean, causing pollution and damage to the soil environment and marine water quality.

[0003] Technologies for degrading petroleum hydrocarbons in soil include ex situ thermal desorption technology, ex situ chemical oxidation technology, and biopile technology. Thermal desorption technology is a commonly used treatment technology for contaminated soil at disposal sites in my country. It can be used for the treatment of volatile and semi-volatile organic contaminated soil and petroleum hydrocarbon contaminated soil at the site. It is a better treatment method for highly contaminated soil.

[0004] However, the above technologies often have the following defects: when using traditional soil thermal desorption systems, the soil is generally crushed through a pretreatment module and then transported to a thermal desorption drum. Through direct or indirect heat exchange, the organic pollutants in the soil are heated to a sufficient temperature to allow the organic pollutants to volatilize or separate from the polluted medium. However, the plastic bags in the soil will wrap the soil, thereby reducing the degradation efficiency. In addition, the plastic bags will shrink after heating and may stick to the wall of the thermal desorption drum, making it inconvenient to clean up later. At the same time, the plastic bags in the soil will also cause pollution after backfilling.

[0005] To this end, the present invention provides a device for efficiently degrading high-concentration petroleum hydrocarbons in soil. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: the device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to the present invention comprises a feeding module, a conveying module and a thermal desorption module, wherein the conveying module is arranged below the feeding module, and the feeding module and the thermal desorption module are connected through the conveying module, and together they constitute a petroleum hydrocarbon degradation device;

[0008] It also includes a motor and a bracket, the bracket is installed on the surface of the feeding module, the surface of the bracket is rotatably connected to a rotating shaft, and the rotating shaft is driven by the motor;

[0009] A plurality of lifting rods are fixedly connected to the surface of the rotating shaft, and the ends of the lifting rods are arc-shaped;

[0010] The surface of the bracket is fixedly connected with a protective cover, the surface of the bracket is fixedly connected with a mounting block, the surface of the mounting block is provided with a recovery mechanism, the recovery mechanism includes a recovery box, the surface of the recovery box is provided with a material throwing port, the surface of the material throwing port is rotatably connected with a comb plate through an elastic member, the comb teeth of the comb plate are "L" shaped, the surface of the comb plate is fixedly connected with a secondary magnetic block, and the surface of the rotating shaft is fixedly connected with a main magnetic block;

[0011] During operation, the soil is broken up by the feeding module and then transported to the thermal desorption module by the conveying module. The petroleum hydrocarbons in the soil are degraded by the thermal desorption module. The motor is started while the device is running, so that the motor drives the shaft to rotate. At this time, the shaft drives the pick-up rod to rotate, and the plastic bag in the soil is picked out by the pick-up rod with an arc-shaped end. When the shaft rotates, the main magnetic block is driven to rotate. When the main magnetic block rotates to the position of the auxiliary magnetic block, the two magnetic blocks are attracted to each other by the principle of out-of-phase attraction. At the same time, the auxiliary magnetic block drives the combing plate to fit the surface of the shaft. The picking rod rotates again, and the plastic bag on the surface of the picking rod is scraped off by the combing plate. When the picking rod passes through the combing plate, the main magnetic block is separated from the auxiliary magnetic block. At this time, the elastic part drives the combing plate to reset, and the plastic bag on the surface of the combing plate is thrown into the recycling box by inertia. The reciprocating cycle can be used to pick out impurities in the soil through the picking rod and the combing plate to avoid the situation where plastic bags wrap the soil, which in turn leads to reduced degradation efficiency and adhesion to the wall of the thermal desorption drum, making it inconvenient for later cleaning. While improving the degradation efficiency, it can also avoid environmental pollution after backfilling in the soil with plastic bags.

[0012] Preferably, the lifting rod is divided into a main rod and a secondary rod, the main rod is fixedly connected to the surface of the rotating shaft, the main rod and the secondary rod are rotatably connected through an elastic member, the end of the secondary rod is arc-shaped, the surface of the bracket is fixedly connected with a cross frame, the surface of the cross frame is fixedly connected with a fixed shaft, the surface of the fixed shaft is slidably connected with a top plate through a spring, the surface of the top plate is arc-shaped, and the surface of the rotating shaft is fixedly connected with a lever;

[0013] During operation, after the picking rod rotates to the comb plate position, the length of the comb teeth of the comb plate is smaller than the length of the picking rod. At this time, the auxiliary rod will be forced to rotate around the main rod, so that the plastic bags on the surface of the picking rod can be better scraped off. At the same time, the rotatable auxiliary rod can be used after the picking rod passes through the comb plate. The elastic part drives the auxiliary rod to reset. The vibration generated will shake off the soil adhered to the surface of the picking rod to avoid excessive soil adhering to the surface of the picking rod, which causes the gap between the picking rods to narrow and affects the efficiency of screening out plastic bags in the soil. When the rotating shaft rotates, it will also drive the lever to rotate, so that the lever squeezes the top plate. At this time, the top plate is forced to move downward, and the squeezing spring generates elastic force. When the lever passes through the top plate, the top plate resets and hits the conveyor belt, bouncing up the soil on the surface of the conveyor belt to avoid plastic bags settling on the surface of the conveyor belt, which makes the picking rod unable to pick up. At the same time, the soil can be further fluffy through impact to facilitate subsequent thermal desorption treatment.

[0014] Preferably, a horizontal axis is fixedly connected inside the recycling box, a pressure plate is rotatably connected to the surface of the horizontal axis, a slide rail is fixedly connected to the surface of the pressure plate, a slider is slidably connected to the surface of the slide rail, an electric telescopic rod is fixedly connected to the surface of the recycling box, and the output shaft of the electric telescopic rod passes through the side wall of the recycling box and is rotatably connected to the slider;

[0015] During operation, after the thermal desorption is completed, the electric telescopic rod is started, so that the output shaft of the electric telescopic rod extends downward, and at the same time drives the slider to slide on the surface of the slide rail. At this time, the slider drives the pressure plate to rotate around the horizontal axis, and the plastic bags in the recycling box are compressed through the pressure plate, thereby increasing the capacity of the recycling box and reducing the frequency of cleaning the recycling box.

[0016] Preferably, a slide groove is provided on the surface of the pressure plate, a connecting rod is slidably connected to the slide groove through a spring, a scraper is fixedly connected to the end of the connecting rod, a chamfer is provided on the surface of the scraper, a pull rope is provided in the recovery box, one end of the pull rope is fixedly connected to the recovery box, and the other end of the pull rope is fixedly connected to the surface of the connecting rod, a plug is fixedly connected to the surface of the connecting rod, a convex ring is fixedly connected to the surface of the plug, both the plug and the convex ring are made of rubber, a notch is provided on the surface of the slide groove relative to the convex ring, a rotating wheel is rotatably connected to the surface of the pressure plate, and the pull rope is slidably connected in the groove on the surface of the rotating wheel;

[0017] During operation, the connecting rod will be driven to slide while the pressing plate rotates, because the length of the pull rope is fixed, and the pull rope will pull the connecting rod while the pressing plate rotates, so that the connecting rod drives the scraper to move, and pulls the scraper to the bottom end of the pressing plate, and at the same time squeezes the spring to generate elastic force. When the pressing plate resets after squeezing the plastic bag, the scraper will scrape off the soil and plastic bag adhered to the surface of the pressing plate to clean the pressing plate. When the connecting rod slides, it will drive the plug to move. When the connecting plate moves to the extreme position, the convex ring on the surface of the plug will be stuck in the groove, and the pressing plate will reset again. The convex ring made of rubber can delay the resetting of the connecting rod. When the pressing plate is completely reset, the convex ring slowly separates from the groove, and driven by the potential energy generated when the spring is reset, the scraper is quickly driven to reset, and a collision occurs at the same time, and the cleaning effect of the pressing plate is further improved through vibration.

[0018] Preferably, the mounting block surface is provided with a mounting groove, the recovery box surface is fixedly connected with a card block, the card block is clamped in the mounting block surface through the mounting groove, the card block is provided with a cavity, the card block surface is provided with an empty groove, the empty groove is slidably connected with an insertion block through a spring, the mounting block surface is provided with a slot relative to the insertion block, the insertion block surface is fixedly connected with a connecting shaft, the other end of the connecting shaft penetrates the cavity side wall for sliding connection, and the end is fixedly connected with an extrusion block, the cavity side wall is slidably connected with a sliding shaft, the end of the sliding shaft is fixedly connected with a top block, the top block surface is an arc surface, the end of the sliding shaft away from the top block penetrates the mounting block for sliding connection, the end of the sliding shaft passing through the mounting block is fixedly connected with a pull ring, the extrusion block surface is provided with a rounded corner, the top block has grooves corresponding to the extrusion block on both sides, and a rubber pad is fixedly connected in the groove;

[0019] During operation, after the recycling box has been used for a long time, the plastic bags stored inside need to be cleaned to ensure the recycling effect. At this time, pull the pull ring first, so that the pull ring drives the sliding shaft to move, so that the sliding shaft drives the top block to separate from the extrusion block. At this time, the spring drives the insertion block to retract into the empty slot. At this time, the insertion block is away from the slot, releasing the limit on the recycling box, and then the recycling box is picked up by the pull ring for cleaning. When installation is required, the card block is inserted into the surface of the installation block, and then the pull ring is pressed downward so that the arc surface on the surface of the top block squeezes the extrusion block, so that the extrusion block drives the insertion block to be inserted into the slot. At this time, continue to press down the top block so that the groove on the surface of the top block fits with the extrusion block, and then position the extrusion block. The insertion block cooperates with the top block to make it easier to quickly disassemble and clean the recycling box.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil described in the present invention can pick out impurities in the soil through a picking rod and a combing plate, thereby avoiding the situation where plastic bags wrap the soil, which leads to reduced degradation efficiency and adhesion to the wall of the thermal desorption drum, making it inconvenient to clean up later. While improving the degradation efficiency, it can also avoid environmental pollution after backfilling in the soil with plastic bags.

[0022] 2. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil described in the present invention compresses the plastic bags in the recycling box through a pressing plate, thereby increasing the capacity of the recycling box and reducing the frequency of cleaning the recycling box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 is a schematic diagram of the support structure in the first embodiment of the present invention;

[0025] Figure 2It is a schematic diagram of the lifting rod structure in the first embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of the top plate structure in the first embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of the main rod structure in the first embodiment of the present invention;

[0028] Figure 5 is the first embodiment of the present invention Figure 4 Schematic diagram of the structure at A in the middle;

[0029] Figure 6 is the first embodiment of the present invention Figure 4 Schematic diagram of the structure at B in the middle;

[0030] Figure 7 It is a schematic diagram of the scraper structure in the first embodiment of the present invention;

[0031] Figure 8 is the first embodiment of the present invention Figure 7 Schematic diagram of the structure at C in the middle;

[0032] Fig. 9 is the first embodiment of the present invention Figure 7 Schematic diagram of the structure at D in the middle;

[0033] Fig.10 is a schematic diagram of the card block structure in the second embodiment of the present invention;

[0034] Fig.11 The second embodiment of the present invention Fig.10 Schematic diagram at point E in the middle.

[0035] In the figure: 1. feeding module; 2. bracket; 3. electric telescopic rod; 31. mounting block; 4. protective cover; 5. motor; 6. conveying module; 7. thermal desorption module; 8. lifting rod; 9. recovery box; 91. main magnetic block; 92. auxiliary magnetic block; 10. rotating shaft; 11. lever; 12. top plate; 13. fixed shaft; 14. cross frame; 15. main rod; 16. auxiliary rod; 17. throwing port; 18. combing plate; 19. slider; 20. slide rail; 21. pressure plate; 22. cross shaft; 23. scraper; 24. connecting rod; 25. slide groove; 26. pull rope; 27. rotating wheel; 28. notch; 29. ​​plug block; 30. convex ring; 32. card block; 33. top block; 34. sliding shaft; 35. cavity; 36. empty groove; 37. plug block; 39. connecting shaft; 40. squeezing block. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0037] Embodiment 1:

[0038] like Figures 1 to 9 As shown, a device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to an embodiment of the present invention comprises a feed module 1, a conveying module 6 and a thermal desorption module 7, wherein the conveying module 6 is arranged below the feed module 1, and the feed module 1 and the thermal desorption module 7 are connected via the conveying module 6, together forming a petroleum hydrocarbon degradation device;

[0039] It also includes a motor 5 and a bracket 2, the bracket 2 is mounted on the surface of the feeding module 1, the surface of the bracket 2 is rotatably connected with a rotating shaft 10, and the rotating shaft 10 is driven by the motor 5;

[0040] A plurality of lifting rods 8 are fixedly connected to the surface of the rotating shaft 10, and the ends of the lifting rods 8 are arc-shaped;

[0041] The surface of the bracket 2 is fixedly connected with a protective cover 4, the surface of the bracket 2 is fixedly connected with a mounting block 31, the surface of the mounting block 31 is provided with a recovery mechanism, the recovery mechanism includes a recovery box 9, the surface of the recovery box 9 is provided with a material throwing port 17, the surface of the material throwing port 17 is rotatably connected with a comb plate 18 through an elastic member, the comb teeth of the comb plate 18 are "L" shaped, the surface of the comb plate 18 is fixedly connected with a secondary magnetic block 92, and the surface of the rotating shaft 10 is fixedly connected with a main magnetic block 91;

[0042] During operation, the soil is broken up by the feeding module 1 and then transported to the thermal desorption module 7 by the conveying module 6. The petroleum hydrocarbons in the soil are degraded by the thermal desorption module 7. The motor 5 is started while the device is running, so that the motor 5 drives the rotating shaft 10 to rotate. At this time, the rotating shaft 10 drives the picking rod 8 to rotate, and the plastic bag in the soil is picked out by the picking rod 8 with an arc-shaped end. When the rotating shaft 10 rotates, the main magnetic block 91 is driven to rotate. When the main magnetic block 91 rotates to the position of the auxiliary magnetic block 92, the two magnetic blocks are attracted to each other by the principle of out-of-phase attraction. At the same time, the auxiliary magnetic block 92 drives the combing plate 18 to fit on the surface of the rotating shaft 10. At this time, the picking rod 8 rotates again, and the plastic bag on the surface of the picking rod 8 is scraped off by the combing plate 18. When the picking rod 8 passes through the combing plate 18, the main magnetic block 91 and the auxiliary magnetic block 92 are separated. At this time, the elastic member drives the combing plate 18 to reset, and the plastic bag on the surface of the combing plate 18 is thrown into the recycling box 9 by inertia. The reciprocating cycle can be used to pick out impurities in the soil through the picking rod 8 and the combing plate 18 to avoid the situation where plastic bags wrap the soil, thereby reducing the degradation efficiency and sticking to the wall of the thermal desorption drum, which is inconvenient for later cleaning. While improving the degradation efficiency, it can also avoid pollution to the environment after backfilling in the soil with plastic bags.

[0043] The lifting rod 8 is divided into a main rod 15 and a secondary rod 16, the main rod 15 is fixedly connected to the surface of the rotating shaft 10, the main rod 15 and the secondary rod 16 are rotatably connected through an elastic member, the end of the secondary rod 16 is arc-shaped, the surface of the bracket 2 is fixedly connected to a cross frame 14, the surface of the cross frame 14 is fixedly connected to a fixed shaft 13, the surface of the fixed shaft 13 is slidably connected to a top plate 12 through a spring, the surface of the top plate 12 is arc-shaped, and the surface of the rotating shaft 10 is fixedly connected to a lever 11;

[0044] When the lifting rod 8 is working, after the lifting rod 8 rotates to the position of the comb plate 18, the comb teeth length of the comb plate 18 is smaller than the length of the lifting rod 8. At this time, the auxiliary rod 16 will be forced to rotate around the main rod 15, so that the plastic bag on the surface of the lifting rod 8 can be better scraped off. At the same time, the rotatable auxiliary rod 16 can be used after the lifting rod 8 passes through the comb plate 18. The elastic member drives the auxiliary rod 16 to reset. The generated vibration will shake off the soil adhered to the surface of the lifting rod 8, avoiding excessive soil adhering to the surface of the lifting rod 8, resulting in the reduction of the gap between the lifting rods 8, affecting the efficiency of screening out plastic bags in the soil. When the rotating shaft 10 rotates, it will also drive the lever 11 to rotate, so that the lever 11 squeezes the top plate 12. At this time, the top plate 12 is forced to move downward, and the squeezing spring generates elastic force. When the lever 11 passes through the top plate 12, the top plate 12 resets and hits the conveyor belt, bouncing up the soil on the surface of the conveyor belt, avoiding plastic bags settling on the surface of the conveyor belt, which makes the lifting rod 8 unable to pick up. At the same time, the soil can be further fluffed by impact to facilitate subsequent thermal desorption treatment.

[0045] The recycling box 9 is fixedly connected with a transverse shaft 22, the surface of the transverse shaft 22 is rotatably connected with a pressure plate 21, the surface of the pressure plate 21 is fixedly connected with a slide rail 20, the surface of the slide rail 20 is slidably connected with a slider 19, the surface of the recycling box 9 is fixedly connected with an electric telescopic rod 3, and the output shaft of the electric telescopic rod 3 passes through the side wall of the recycling box 9 and is rotatably connected with the slider 19;

[0046] During operation, after the thermal desorption is completed, the electric telescopic rod 3 is started, so that the output shaft of the electric telescopic rod 3 extends downward, and at the same time drives the slider 19 to slide on the surface of the slide rail 20. At this time, the slider 19 drives the pressing plate 21 to rotate around the horizontal axis 22, and the plastic bag in the recycling box 9 is compressed by the pressing plate 21, thereby increasing the capacity of the recycling box 9 and reducing the frequency of cleaning the recycling box 9.

[0047] The surface of the pressure plate 21 is provided with a slide groove 25, and a connecting rod 24 is slidably connected to the slide groove 25 through a spring. A scraper 23 is fixedly connected to the end of the connecting rod 24, and a chamfer is provided on the surface of the scraper 23. A pull rope 26 is provided in the recovery box 9, one end of the pull rope 26 is fixedly connected to the recovery box 9, and the other end of the pull rope 26 is fixedly connected to the surface of the connecting rod 24. A plug 29 is fixedly connected to the surface of the connecting rod 24, and a convex ring 30 is fixedly connected to the surface of the plug 29. Both the plug 29 and the convex ring 30 are made of rubber. A notch 28 is provided on the surface of the slide groove 25 relative to the convex ring 30. A rotating wheel 27 is rotatably connected to the surface of the pressure plate 21, and the pull rope 26 is slidably connected in the groove on the surface of the rotating wheel 27;

[0048] During operation, the connecting rod 24 will be driven to slide when the pressing plate 21 rotates. Since the length of the pull rope 26 is fixed, the pull rope 26 will pull the connecting rod 24 when the pressing plate 21 rotates, so that the connecting rod 24 drives the scraper 23 to move, and the scraper 23 is pulled to the bottom of the pressing plate 21. At the same time, the squeezing spring generates elastic force. When the pressing plate 21 is reset after squeezing the plastic bag, the scraper 23 scrapes off the soil and plastic bag adhered to the surface of the pressing plate 21, and cleans the pressing plate 21. When the connecting rod 24 slides, the scraper 23 moves and the scraper 23 moves. At the same time, it will drive the plug 29 to move. When the connecting plate moves to the limit position, the convex ring 30 on the surface of the plug 29 will be stuck in the groove 28. At this time, the pressure plate 21 is reset again. The convex ring 30 made of rubber can delay the reset of the connecting rod 24. When the pressure plate 21 is completely reset, the convex ring 30 slowly separates from the groove 28. Driven by the potential energy generated when the spring is reset, the scraper 23 is quickly reset and a collision occurs at the same time. The cleaning effect of the pressure plate 21 is further improved through vibration.

[0049] Embodiment 2:

[0050] like Figure 10 to Figure 11As shown, in contrast to Example 1, another embodiment of the present invention is as follows: a mounting groove is provided on the surface of the mounting block 31, a clamping block 32 is fixedly connected to the surface of the recovery box 9, the clamping block 32 is clamped on the surface of the mounting block 31 through the mounting groove, a cavity 35 is provided in the clamping block 32, a slot 36 is provided on the surface of the clamping block 32, an insert block 37 is slidably connected to the slot 36 through a spring, a slot is provided on the surface of the mounting block 31 relative to the position of the insert block 37, a connecting shaft 39 is fixedly connected to the surface of the insert block 37, and the connecting shaft 39 is fixedly connected to the surface of the insert block 37. The other end of 9 passes through the side wall of the cavity 35 for sliding connection, and the end is fixedly connected with an extrusion block 40, the side wall of the cavity 35 is slidably connected with a sliding shaft 34, the end of the sliding shaft 34 is fixedly connected with a top block 33, the surface of the top block 33 is an arc surface, the end of the sliding shaft 34 away from the top block 33 passes through the mounting block 31 for sliding connection, the end of the sliding shaft 34 passing through the mounting block 31 is fixedly connected with a pull ring, the surface of the extrusion block 40 is provided with a rounded corner, the two sides of the top block 33 are provided with grooves corresponding to the extrusion block 40, and the grooves are fixedly connected with rubber pads;

[0051] The top block 33 is then pressed down further so that the groove on the surface of the top block 33 fits with the extrusion block 40, thereby positioning the extrusion block 40, and the recovery box 9 is more convenient to be quickly disassembled and cleaned by cooperating with the top block 33 through the insertion block 37.

[0052] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for efficiently degrading high-concentration petroleum hydrocarbons in soil, comprising a feed module (1), a conveying module (6) and a thermal desorption module (7), wherein the conveying module (6) is arranged below the feed module (1), and the feed module (1) and the thermal desorption module (7) are connected via the conveying module (6), and together constitute a petroleum hydrocarbon degradation device; Features: It also comprises a motor (5) and a bracket (2), wherein the bracket (2) is mounted on the surface of the feed module (1), and a rotating shaft (10) is rotatably connected to the surface of the bracket (2), and the rotating shaft (10) is driven by the motor (5); A plurality of lifting rods (8) are fixedly connected to the surface of the rotating shaft (10), and the ends of the lifting rods (8) are arc-shaped; A protective cover (4) is fixedly connected to the surface of the bracket (2), a mounting block (31) is fixedly connected to the surface of the bracket (2), and a recovery mechanism is provided on the surface of the mounting block (31).

2. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to claim 1, characterized in that: The recycling mechanism comprises a recycling box (9), a material throwing port (17) is provided on the surface of the recycling box (9), a comb plate (18) is rotatably connected to the surface of the material throwing port (17) via an elastic member, the comb teeth of the comb plate (18) are "L" shaped, a secondary magnetic block (92) is fixedly connected to the surface of the comb plate (18), and a main magnetic block (91) is fixedly connected to the surface of the rotating shaft (10).

3. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to claim 2, characterized in that: The lifting rod (8) is divided into a main rod (15) and a secondary rod (16). The main rod (15) is fixedly connected to the surface of the rotating shaft (10). The main rod (15) and the secondary rod (16) are rotatably connected via an elastic member. The end of the secondary rod (16) is arc-shaped.

4. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to claim 3, characterized in that: The surface of the bracket (2) is fixedly connected to a cross frame (14), the surface of the cross frame (14) is fixedly connected to a fixed shaft (13), the surface of the fixed shaft (13) is slidably connected to a top plate (12) via a spring, the surface of the top plate (12) is arc-shaped, and the surface of the rotating shaft (10) is fixedly connected to a shifting rod (11).

5. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to claim 4, characterized in that: A transverse axis (22) is fixedly connected inside the recovery box (9), a pressure plate (21) is rotatably connected to the surface of the transverse axis (22), a slide rail (20) is fixedly connected to the surface of the pressure plate (21), a slider (19) is slidably connected to the surface of the slider (20), an electric telescopic rod (3) is fixedly connected to the surface of the recovery box (9), and an output shaft of the electric telescopic rod (3) passes through the side wall of the recovery box (9) and is rotatably connected to the slider (19).

6. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to claim 5, characterized in that: A sliding groove (25) is provided on the surface of the pressure plate (21), a connecting rod (24) is slidably connected to the inside of the sliding groove (25) via a spring, a scraper (23) is fixedly connected to the end of the connecting rod (24), a chamfer is provided on the surface of the scraper (23), a pull rope (26) is provided in the recovery box (9), one end of the pull rope (26) is fixedly connected to the recovery box (9), and the other end of the pull rope (26) is fixedly connected to the surface of the connecting rod (24).

7. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to claim 6, characterized in that: A plug (29) is fixedly connected to the surface of the connecting rod (24), and a convex ring (30) is fixedly connected to the surface of the plug (29). Both the plug (29) and the convex ring (30) are made of rubber. A notch (28) is provided on the surface of the slide groove (25) at a position relative to the convex ring (30). A rotating wheel (27) is rotatably connected to the surface of the pressure plate (21), and the pull rope (26) is slidably connected in a groove on the surface of the rotating wheel (27).

8. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to claim 7, characterized in that: The surface of the mounting block (31) is provided with a mounting groove, the surface of the recovery box (9) is fixedly connected with a clamping block (32), the clamping block (32) is clamped on the surface of the mounting block (31) through the mounting groove, a cavity (35) is provided in the clamping block (32), an empty groove (36) is provided on the surface of the clamping block (32), an inserting block (37) is slidably connected to the empty groove (36) via a spring, and a slot is provided on the surface of the mounting block (31) at a position relative to the inserting block (37). A connecting shaft (39) is fixedly connected to the surface of the insert block (37), the other end of the connecting shaft (39) penetrates the side wall of the cavity (35) for sliding connection, and the end is fixedly connected to an extrusion block (40), the side wall of the cavity (35) is slidably connected to a sliding shaft (34), the end of the sliding shaft (34) is fixedly connected to a top block (33), the surface of the top block (33) is an arc surface, and one end of the sliding shaft (34) away from the top block (33) penetrates the mounting block (31) for sliding connection.

9. The device for efficiently degrading high-concentration petroleum hydrocarbons in soil according to claim 8, characterized in that: One end of the sliding shaft (34) passing through the mounting block (31) is fixedly connected to a pull ring, a rounded corner is provided on the surface of the extrusion block (40), grooves corresponding to the extrusion block (40) are provided on both sides of the top block (33), and rubber pads are fixedly connected in the grooves.

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