In-situ remediation integrated multiphase extraction equipment for contaminated sites

Abstract

The application discloses a kind of pollution site in-situ remediation integrated multiphase extraction equipment involving pollution treatment technical field, the equipment includes extraction frame: including being located on extraction frame installation barrel, installation barrel is connected with outside mobile equipment;Scraping mechanism includes the filter cartridge for adsorbing non-aqueous phase liquid with installation barrel sliding connection and with installation barrel inner cavity communication, the surface of filter cartridge is rotatably installed with two rotationally symmetrical half-arc rotary plates, the surface of each half-arc rotary plate is rotatably installed with rotary column, the surface of rotary column is fixedly installed with a plurality of scraping blocks for scraping solid impurities;By the blocking effect of baffle, so that solid impurities are all attached to baffle, and under the action of negative pressure makes non-aqueous phase liquid can be filtered by adjacent baffle gap Extraction cartridge, so as to avoid the re-plugging of solid impurities on the surface of filter cartridge, at the same time also will not affect the extraction of non-aqueous phase liquid, reach the purpose of improving the efficiency of extracting non-aqueous phase liquid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pollution treatment, in particular to a pollution site in-situ remediation integrated multiphase extraction equipment. BACKGROUND

[0002] At present, with the development of industry, pollution treatment has become a problem that many enterprises have to face, and when treating pollution problems, if large-scale pollution transfer is carried out, the transportation cost is very high, therefore, in-situ remediation technology begins to be widely used. In-situ remediation technology refers to a technology for directly treating pollution at the pollution source. Through in-situ remediation technology, a region of pollutants can be quickly treated.

[0003] At present, when in-situ remediation is carried out, the gas, water and non-aqueous phase liquid in the underground well are generally synchronously extracted by the integrated multiphase extraction equipment, and then the extracted substances are quickly treated by the treatment equipment. However, the existing extraction pipeline is blocked by the solid impurities in the underground well when in use, which increases the extraction load and affects the extraction efficiency of the non-aqueous phase liquid.

[0004] Therefore, the present application designs a pollution site in-situ remediation integrated multiphase extraction equipment to solve the above problems. SUMMARY

[0005] The purpose of the embodiment of the present application is to provide a pollution site in-situ remediation integrated multiphase extraction equipment, which aims to solve the technical problems existing in the prior art mentioned in the background.

[0006] The embodiment of the present application is implemented as follows: a pollution site in-situ remediation integrated multiphase extraction equipment, the equipment comprises:

[0007] The extraction frame comprises an installation cylinder body arranged on the extraction frame, and the installation cylinder body is connected with a mobile device outside;

[0008] The scraping mechanism comprises a filter cylinder connected with the installation cylinder body in sliding connection and communicating with the inner cavity of the installation cylinder body for adsorbing non-aqueous phase liquid, the surface of the filter cylinder is rotatably provided with two rotationally symmetrical half-arc rotating plates, the surface of each half-arc rotating plate is rotatably provided with a rotating column, the surface of the rotating column is fixedly provided with a plurality of scraping blocks for scraping solid impurities, and the surface of each half-arc rotating plate is fixedly provided with a plurality of blocking plates for blocking solid impurities;

[0009] The rotating mechanism is driven to rotate by cooperating with the negative pressure mechanism;

[0010] The self-rotation mechanism is used to drive the rotating column to rotate.

[0011] Further, the rotating mechanism comprises rotating rods fixedly connected with the two half-arc rotating plates, the rotating rods penetrating through the filter cartridge and being rotatably connected with the filter cartridge, the surface of the rotating rod is fixedly installed with a linkage block, the surface of the linkage block is fixedly installed with a torsion spring, the surface of the linkage block is further fixedly installed with a connecting cylinder, the surface of the connecting cylinder is fixedly installed with a sliding column, the surface of the installation cylinder is fixedly installed with a sliding groove cylinder, the inner wall of the sliding groove cylinder is provided with a circumferential groove matched with the sliding column and four sliding groove cylinders, one end of the four sliding groove cylinders is connected with the circumferential groove, and the other end of the torsion spring away from the linkage block is connected with the negative pressure mechanism.

[0012] Further, the self-rotation mechanism comprises a self-rotation disc coaxially and rotatably connected with the surface of the filter cartridge, the inner wall of the rotating column is fixedly connected with the surface of the self-rotation shaft, the self-rotation shaft penetrates through the self-rotation disc and is rotatably connected with the self-rotation disc, the surface of the self-rotation shaft is coaxially and fixedly installed with a self-rotation gear, the surface of the filter cartridge is fixedly installed with a fixed gear cylinder, and the inner wall of the fixed gear cylinder is provided with a gear ring engaged with the self-rotation gear.

[0013] Further, the equipment further comprises a limiting mechanism, the limiting mechanism comprises a limiter fixedly installed on the installation cylinder, the output end of the limiter is installed with a limiting rod, the limiting rod penetrates through the installation cylinder and is slidably connected with the installation cylinder, and the end of the limiting rod away from the limiter is in contact with the surface of the filter cartridge.

[0014] Further, the negative pressure mechanism comprises a negative pressure pipeline fixedly installed on the installation cylinder, one end of the negative pressure pipeline is communicated with the inner cavity of the installation cylinder, the other end of the negative pressure pipeline is connected with an external negative pressure pump, the rotating rod penetrates through the negative pressure pipeline and is slidably connected with the negative pressure pipeline, the installation cylinder and the filter cartridge are connected through a negative pressure spring, the surface of the linkage block is rotatably installed with a moving disc, the surface of the moving disc is fixedly installed with two moving ratchet strips in rotational symmetry, each moving ratchet strip is engaged with a transmission gear, the transmission gear is rotatably connected with the inner wall of the sliding groove cylinder, the surface of the transmission gear is coaxially and fixedly installed with a driving bevel gear, the two driving bevel gears are engaged with a driven bevel gear, the driven bevel gear is rotatably connected with the inner wall of the sliding groove cylinder, the end of the torsion spring away from the linkage block is connected with the driven bevel gear, the inner wall of the sliding groove cylinder is fixedly installed with two guide rods, each guide rod penetrates through the moving disc and is slidably connected with the moving disc.

[0015] Further, the scraping block is made of elastic rubber material.

[0016] Further, the sliding column is provided with a rotating ball at the matched end of the vertical groove and the circumferential groove.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. This invention stores elastic potential energy through a negative pressure mechanism and releases the stored elastic potential energy under the action of a rotating mechanism, thereby driving the semi-arc rotating plate to rotate. The rotation of the semi-arc rotating plate drives the rotating column to revolve, thereby scraping off solid impurities on the surface of the filter cartridge through the scraping block, thus achieving the purpose of automatically cleaning the surface of the filter cartridge.

[0019] 2. This invention uses a self-rotating mechanism to drive the rotating column to rotate, which in turn drives the scraping block to rotate. This process cleans the solid impurities while simultaneously stirring and tumbling them, thereby achieving the goal of fully extracting the non-aqueous liquid adhering to the surface of the solid impurities.

[0020] 3. This invention uses the blocking effect of the baffle plate to make all solid impurities stick to the baffle plate, and under the action of negative pressure, the non-aqueous liquid can be extracted by the filter cartridge through the gap between adjacent baffle plates, thereby avoiding the solid impurities from clogging the surface of the filter cartridge again, and at the same time, it will not affect the extraction of non-aqueous liquid, thus achieving the purpose of improving the extraction efficiency of non-aqueous liquid. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an integrated multiphase extraction device for in-situ remediation of contaminated sites provided in an embodiment of the present invention;

[0022] Figure 2 This is a schematic cross-sectional view of the present invention;

[0023] Figure 3 For the present invention Figure 2 A magnified structural diagram at point A;

[0024] Figure 4 For the present invention Figure 2 A magnified structural diagram at point B;

[0025] Figure 5 This is another cross-sectional structural schematic diagram of the integrated multiphase extraction equipment for in-situ remediation of contaminated sites according to the present invention.

[0026] Figure 6 For the present invention Figure 5 A magnified structural diagram at point C;

[0027] Figure 7 For the present invention Figure 5 A magnified structural diagram at point D;

[0028] Figure 8 This is a schematic diagram of the exploded structure of some parts of an integrated multiphase extraction equipment for in-situ remediation of contaminated sites.

[0029] Figure 9 For the present invention Figure 8 A magnified structural diagram at point E;

[0030] Figure 10 For the purpose of the present application Figure 8 The amplification structure of F is shown in the schematic diagram.

[0031] In the drawings: 1, extraction frame; 101, mounting barrel; 2, scraping mechanism; 201, filter cartridge; 202, semi-arc rotating plate; 203, rotating column; 204, scraping block; 205, blocking plate; 3, rotating mechanism; 301, rotating rod; 302, linkage round block; 303, torsion spring; 304, sliding column; 305, vertical slot; 306, circumferential slot; 307, sliding groove barrel; 308, connecting barrel; 4, self-rotation mechanism; 401, self-rotation round plate; 402, self-rotation connecting shaft; 403, self-rotation gear; 404, fixed tooth barrel; 5, limiting mechanism; 501, limiter; 502, limiting rod; 6, negative pressure mechanism; 601, negative pressure pipeline; 602, negative pressure spring; 603, moving round plate; 604, moving ratchet bar; 605, transmission gear; 606, driving bevel gear; 607, driven bevel gear; 608, guide rod. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0033] It can be understood that the terms "first", "second" and the like used herein can be used to describe various elements, but unless specifically stated, these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0034] As Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 10 indicated, in one embodiment, an integrated multiphase extraction equipment for in-situ remediation of contaminated sites is proposed, which comprises:

[0035] Extraction frame 1: comprising mounting barrel 101 provided on extraction frame 1, mounting barrel 101 being connected with external mobile equipment;

[0036] Scraping mechanism 2: includes a filter cylinder 201 that is slidably connected to the mounting cylinder 101 and communicates with the inner cavity of the mounting cylinder 101 for adsorbing non-aqueous liquids. Two rotationally symmetrical semi-arc rotating plates 202 are rotatably mounted on the surface of the filter cylinder 201. A rotating column 203 is rotatably mounted on the surface of each semi-arc rotating plate 202. Multiple scraping blocks 204 for scraping off solid impurities are fixedly mounted on the surface of the rotating column 203. Multiple blocking plates 205 for blocking solid impurities are fixedly mounted on the surface of each semi-arc rotating plate 202.

[0037] Rotating mechanism 3: Drives the semi-arc rotating plate 202 to rotate through cooperation with the negative pressure mechanism 6;

[0038] Rotation mechanism 4: used to drive the rotating column 203 to rotate.

[0039] In practical application, when extracting non-aqueous liquids, the filter cartridge 201 is moved downwards into the underground well by an external mobile device. Once the filter cartridge 201 enters the non-aqueous liquid, the negative pressure generated by the negative pressure mechanism 6 absorbs the liquid. As absorption proceeds, solid impurities in the non-aqueous liquid are blocked by the filter cartridge 201. Furthermore, as impurities accumulate, the negative pressure causes the filter cartridge 201 to move vertically upwards. Figure 3 and Figure 4 As shown, the upward movement of the filter cylinder 201 stores elastic potential energy through the negative pressure mechanism 6, and releases the stored elastic potential energy under the action of the rotation mechanism 3, thereby driving the semi-circular rotating plate 202 to rotate, as shown. Figure 10 As shown, the rotation of the semi-circular rotating plate 202 drives the rotating column 203 to revolve, thereby scraping off solid impurities from the surface of the filter cartridge 201 via the scraper block 204, thus achieving the purpose of automatically cleaning the surface of the filter cartridge 201. Simultaneously, as the rotating column 203 revolves, as... Figure 7 As shown, the rotating mechanism 4 drives the rotating column 203 to rotate, which in turn drives the scraper block 204 to rotate. This simultaneously cleans and tumbles the solid impurities, achieving the goal of fully extracting the non-aqueous liquid adhering to the surface of the solid impurities. At the same time, through the stirring and revolution of the scraper block 204, the solid impurities are pushed from the filter cylinder 201 to the surface of the semi-circular rotating plate 202 under inertia. Figure 10 As shown, due to the blocking effect of the baffle plate 205, all solid impurities adhere to the baffle plate 205. Under the action of negative pressure, the non-aqueous liquid can be extracted by the filter cartridge 201 through the gap between adjacent baffle plates 205, thereby avoiding the solid impurities from clogging the surface of the filter cartridge 201 again, and at the same time, it will not affect the extraction of the non-aqueous liquid, thus achieving the purpose of improving the extraction efficiency of the non-aqueous liquid.

[0040] likeFigure 3 , Figure 7 and Figure 9 As shown, in a preferred embodiment of the present invention, the rotating mechanism 3 includes a rotating rod 301 fixedly connected to both semi-circular rotating plates 202. The rotating rod 301 passes through the filter cylinder 201 and is rotatably connected to the filter cylinder 201. A linkage block 302 is fixedly installed on the surface of the rotating rod 301. A torsion spring 303 is fixedly installed on the surface of the linkage block 302. A connecting cylinder 308 is also fixedly installed on the surface of the linkage block 302. A sliding column 304 is fixedly installed on the surface of the connecting cylinder 308. A sliding groove cylinder 307 is fixedly installed on the surface of the mounting cylinder body 101. The inner wall of the sliding groove cylinder 307 is provided with a circumferential groove 306 that cooperates with the sliding column 304 and four sliding groove cylinders 307. One end of each of the four sliding groove cylinders 307 is connected to the circumferential groove 306. The end of the torsion spring 303 away from the linkage block 302 is connected to the negative pressure mechanism 6.

[0041] In practical applications, when the filter cartridge 201 is clogged with excessive solid impurities, as in the embodiments of the present invention... Figure 7 As shown, under the action of negative pressure, the filter cylinder 201 moves vertically upward, which in turn drives the rotating rod 301 to move upward synchronously, as... Figure 3 As shown, the upward movement of the rotating rod 301 drives the linkage block 302 to move upward, thereby compressing the torsion spring 303. Simultaneously, during the upward movement of the linkage block 302, the negative pressure mechanism 6 is simultaneously activated to store elastic potential energy. Figure 9 As shown, at this time, the linkage block 302 drives the sliding column 304 to slide on the vertical groove 305 through the connecting cylinder 308. When the sliding column 304 moves to the end of the vertical groove 305, it is driven to rotate in the circumferential groove 306 under the elastic potential energy of the negative pressure mechanism 6. Then, it drives the rotating rod 301 to rotate in the opposite direction through the connecting cylinder 308 and the linkage block 302. The rotation of the rotating rod 301 drives the semi-arc rotating plate 202 to rotate, thereby scraping off the solid impurities on the filter cylinder 201 through the scraping block 204. As the impurities are scraped off, the sliding column 304 returns to the next vertical groove 305 to wait for the next negative pressure trigger, thereby achieving the purpose of automatically scraping off impurities from the surface of the filter cylinder 201.

[0042] like Figure 7 As shown, in another preferred embodiment of the present invention, the rotation mechanism 4 includes a rotating circular plate 401 coaxially rotatably connected to the surface of the filter cylinder 201, the inner wall of the rotating column 203 is fixedly connected to the surface of the rotating shaft 402, the rotating shaft 402 passes through the rotating circular plate 401 and is rotatably connected to the rotating circular plate 401, a rotating gear 403 is coaxially fixedly installed on the surface of the rotating shaft 402, a fixed gear cylinder 404 is fixedly installed on the surface of the filter cylinder 201, and a gear ring that meshes with the rotating gear 403 is provided on the inner wall of the fixed gear cylinder 404.

[0043] When the semi-arc rotating plate 202 rotates in revolution, the rotating column 203 rotates in revolution synchronously, as shown in the figure. Figure 7 As shown in the figure, the rotating column 203 rotates in revolution by driving the rotating circular plate 401 in revolution through the rotating shaft 402, at this time, the rotating shaft 402 drives the rotating gear 403 to rotate in revolution, due to the meshing of the rotating gear 403 and the internal gear ring of the fixed gear cylinder 404, the rotating gear 403 rotates, and further drives the rotating column 203 to rotate through the rotating shaft 402, the rotating column 203 drives the scraping block 204 to rotate synchronously, thereby achieving the purpose of automatically picking up solid impurities and fully extracting the non-aqueous phase liquid on the surface.

[0044] As shown in the figures, Figure 5 , Figure 6 and Figure 7 As another preferred embodiment of the application, the equipment further comprises a limiting mechanism 5, the limiting mechanism 5 comprises a limiter 501 fixedly installed on the installation cylinder body 101, the output end of the limiter 501 is installed with a limiting rod 502, the limiting rod 502 penetrates through the installation cylinder body 101 and is in sliding connection with the installation cylinder body 101, and the end of the limiting rod 502 away from the limiter 501 is in contact with the surface of the filter cylinder 201.

[0045] When the filter cylinder 201 is driven by the external mobile device to penetrate into the non-aqueous phase liquid of the underground well, the limiting action of the limiting rod 502 avoids the relative movement between the filter cylinder 201 and the installation cylinder body 101 under the resistance of the non-aqueous phase liquid, thereby triggering the rotating mechanism 3 and the negative pressure mechanism 6 to move, and when the filter cylinder 201 penetrates into the non-aqueous phase liquid stably, the limiter 501 starts to move at this time, the movement of the limiter 501 drives the limiting rod 502 to move vertically upward, thereby automatically eliminating the limiting action on the filter cylinder 201.

[0046] As shown in the figures, Figure 3 and Figure 4As shown, in another preferred embodiment of the present invention, the negative pressure mechanism 6 includes a negative pressure pipe 601 fixedly installed on the mounting cylinder 101. One end of the negative pressure pipe 601 communicates with the inner cavity of the mounting cylinder 101, and the other end of the negative pressure pipe 601 is connected to an external negative pressure pump. A rotating rod 301 passes through the negative pressure pipe 601 and is slidably connected to the negative pressure pipe 601. The mounting cylinder 101 and the filter cylinder 201 are connected by a negative pressure spring 602. A movable circular plate 603 is rotatably mounted on the surface of the linkage block 302. Two rotationally symmetrical movable ratchet racks 604 are fixedly mounted on the surface of the movable circular plate 603. Each movable ratchet 604 meshes with a transmission gear 605, which is rotatably connected to the inner wall of the slide tube 307. A driving bevel gear 606 is coaxially fixedly mounted on the surface of the transmission gear 605. Both driving bevel gears 606 mesh with driven bevel gears 607, which are rotatably connected to the inner wall of the slide tube 307. The end of the torsion spring 303 away from the linkage block 302 is connected to the driven bevel gear 607. Two guide rods 608 are fixedly mounted on the inner wall of the slide tube 307. Each guide rod 608 passes through the movable circular plate 603 and is slidably connected to the movable circular plate 603.

[0047] In practical applications, the embodiments of the present invention, such as Figure 3 As shown, during the extraction operation, an external negative pressure pump generates negative pressure in the negative pressure pipeline 601 to extract the non-aqueous phase liquid. Furthermore, after solid impurities clog the filter cartridge 201, as... Figure 4 As shown, the filter cylinder 201 is pulled vertically upward by negative pressure, while the negative pressure spring 602 is compressed. Figure 3 As shown, when the linkage block 302 moves upward, it drives the movable circular plate 603 to move upward synchronously, which in turn drives the movable ratchet 604 to move upward. Through the meshing action of the rack and pinion, the transmission gear 605 is driven to rotate. The rotation of the transmission gear 605 drives the driven bevel gear 607 to rotate synchronously, which in turn drives the torsion spring 303 to store torsion energy. When the sliding column 304 moves to the position of the circumferential groove 306, the sliding column 304 is driven to rotate under the action of the torsion spring 303. This, in turn, drives the semi-arc rotating plate 202 to revolve through the rotating mechanism 3, thereby achieving the purpose of automatically storing energy to drive the semi-arc rotating plate 202 to rotate and scrape off solid impurities.

[0048] like Figure 10 As shown, in another preferred embodiment of the present invention, the scraping block 204 is made of elastic rubber.

[0049] In practical applications, the embodiments of the present invention, such as Figure 10As shown, by setting the scraping block 204 to be elastic rubber material, thereby increasing the contact force of the scraping block 204 and the surface of the filter cartridge 201, the solid impurities on the surface of the filter cartridge 201 are fully scraped, and the surface of the filter cartridge 201 is also avoided from being damaged.

[0050] As shown in the drawings, Figure 2 and Figure 3 As shown, as another preferred embodiment of the present application, the sliding column 304 is provided with a rotating ball at the matching end of the vertical groove 305 and the circumferential groove 306.

[0051] In actual application, the embodiment of the present application is as shown in the drawings, Figure 3 by setting the rotating ball, the sliding friction is converted into rolling friction, the service life of the part is improved, and the stability of the movement is also increased.

[0052] The technical features of the above-mentioned embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above-mentioned embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0053] The above-mentioned embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

[0054] The above-mentioned is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An integrated multiphase extraction device for in-situ remediation of contaminated sites, characterized in that, The equipment includes: Extraction rack (1): includes a mounting cylinder (101) disposed on the extraction rack (1), the mounting cylinder (101) being connected to an external mobile device; Scraping mechanism (2): includes a filter cartridge (201) that is slidably connected to the mounting cylinder (101) and communicates with the inner cavity of the mounting cylinder (101) for adsorbing non-aqueous liquid. Two rotationally symmetrical semi-arc rotating plates (202) are rotatably mounted on the surface of the filter cartridge (201). A rotating column (203) is rotatably mounted on the surface of each semi-arc rotating plate (202). Multiple scraping blocks (204) for scraping off solid impurities are fixedly mounted on the surface of the rotating column (203). Multiple blocking plates (205) for blocking solid impurities are fixedly mounted on the surface of each semi-arc rotating plate (202). Under the action of negative pressure, non-aqueous liquid can be drawn by the filter cartridge (201) through the gap between adjacent blocking plates (205). Rotating mechanism (3): Drives the semi-arc rotating plate (202) to rotate through cooperation with the negative pressure mechanism (6); Rotation mechanism (4): used to drive the rotating column (203) to rotate.

2. The integrated multiphase extraction equipment for in-situ remediation of contaminated sites according to claim 1, characterized in that, The rotating mechanism (3) includes a rotating rod (301) fixedly connected to both semi-arc rotating plates (202). The rotating rod (301) passes through the filter cylinder (201) and is rotatably connected to the filter cylinder (201). A linkage block (302) is fixedly installed on the surface of the rotating rod (301). A torsion spring (303) is fixedly installed on the surface of the linkage block (302). A connecting cylinder (308) is also fixedly installed on the surface of the linkage block (302). A sliding column (304) is fixedly installed on the surface of the mounting cylinder body (101). A sliding groove cylinder (307) is fixedly installed on the surface of the mounting cylinder body (101). A circumferential groove (306) that cooperates with the sliding column (304) and four sliding groove cylinders (307) are provided on the inner wall of the sliding groove cylinder (307). One end of each of the four sliding groove cylinders (307) is connected to the circumferential groove (306). The end of the torsion spring (303) away from the linkage block (302) is connected to the negative pressure mechanism (6).

3. The integrated multiphase extraction equipment for in-situ remediation of contaminated sites according to claim 1, characterized in that, The rotation mechanism (4) includes a rotating circular plate (401) that is rotatably connected to the surface of the filter cylinder (201). The inner wall of the rotating column (203) is fixedly connected to the surface of the rotating shaft (402). The rotating shaft (402) passes through the rotating circular plate (401) and is rotatably connected to the rotating circular plate (401). A rotating gear (403) is fixedly installed on the surface of the rotating shaft (402) on the same axis. A fixed gear cylinder (404) is fixedly installed on the surface of the filter cylinder (201). A gear ring that meshes with the rotating gear (403) is opened on the inner wall of the fixed gear cylinder (404).

4. The integrated multiphase extraction equipment for in-situ remediation of contaminated sites according to claim 1, characterized in that, The equipment also includes a limiting mechanism (5), which includes a limiter (501) fixedly installed on the mounting cylinder (101). A limiting rod (502) is installed at the output end of the limiter (501). The limiting rod (502) passes through the mounting cylinder (101) and is slidably connected to the mounting cylinder (101). The end of the limiting rod (502) away from the limiter (501) is in contact with the surface of the filter cylinder (201).

5. The integrated multiphase extraction equipment for in-situ remediation of contaminated sites according to claim 2, characterized in that, The negative pressure mechanism (6) includes a negative pressure pipe (601) fixedly installed on the mounting cylinder (101). One end of the negative pressure pipe (601) communicates with the inner cavity of the mounting cylinder (101), and the other end of the negative pressure pipe (601) is connected to an external negative pressure pump. A rotating rod (301) passes through the negative pressure pipe (601) and is slidably connected to the negative pressure pipe (601). The mounting cylinder (101) and the filter cylinder (201) are connected by a negative pressure spring (602). A movable circular plate (603) is rotatably installed on the surface of the linkage block (302). Two rotationally symmetrical movable ratchet racks (604) are fixedly installed on the surface of the movable circular plate (603). Each movable ratchet rack (604) All are meshed with the transmission gear (605), the transmission gear (605) is rotatably connected to the inner wall of the slide cylinder (307), the surface of the transmission gear (605) is coaxially fixedly mounted with the driving bevel gear (606), both driving bevel gears (606) are meshed with the driven bevel gear (607), and the driven bevel gear (607) is rotatably connected to the inner wall of the slide cylinder (307), the end of the torsion spring (303) away from the linkage block (302) is connected to the driven bevel gear (607), and two guide rods (608) are fixedly mounted on the inner wall of the slide cylinder (307), each guide rod (608) passes through the movable circular plate (603) and is slidably connected to the movable circular plate (603).

6. The integrated multiphase extraction equipment for in-situ remediation of contaminated sites according to claim 1, characterized in that, The scraping block (204) is made of elastic rubber.

7. The integrated multiphase extraction equipment for in-situ remediation of contaminated sites according to claim 2, characterized in that, The sliding column (304) is provided with a rotating ball at the mating end with the vertical groove (305) and the circumferential groove (306).

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