Underground water remediation equipment and system aiming at chromium pollutants

Abstract

The invention relates to the technical field of water remediation, in particular to underground water remediation equipment and system for chromium pollutants. According to the technical scheme, the magnetic adsorption device comprises an adsorption conversion piece, the adsorption conversion piece comprises four rails, racks, gears, winding shafts and adsorption thick pieces, the rails are evenly and fixedly installed on the inner wall of the top and the inner wall of the bottom of a magnetic adsorption tank respectively, each rail is of a bent U-shaped structure, and the inner walls of the rails are connected with the winding shafts in a sliding mode. Through cooperation of the gear and the rack, the gear moves along the track, so that the winding shaft and the adsorption thick piece move, when the adsorption thick piece moves to the outer bending part from the inner bending part of the track, the contact face of the adsorption thick piece and water is converted, the two faces of the adsorption thick piece can make contact with underground water, and it is avoided that particles in the adsorption thick piece are filled too thick; the particles on one side of the adsorption thick sheet absorb chromium to be saturated, and the other side does not absorb chromium, so that the absorption surface is converted, and the absorption amount is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water remediation, and in particular to groundwater remediation equipment and system for chromium pollutants. Background Art

[0002] Groundwater pollution refers to the phenomenon that the characteristics of groundwater are changed due to pollution generated by people's production and life activities. Groundwater pollution is a serious environmental problem. It has a huge impact on human life and the ecosystem. Drinking contaminated groundwater can cause various diseases. Groundwater pollution can also affect the growth and quality of crops, enter the human body through the food chain, and cause indirect harm to human health. Therefore, groundwater needs to be repaired and treated.

[0003] The patent document with announcement number CN103613161B discloses a device for treating wastewater containing arsenic and chromium. It introduces a magnetic field recovery device and uses magnetic nano iron oxide particles as an adsorbent for arsenic- or chromium-containing wastewater, thereby realizing the application of nano-particle adsorbents in actual industrial wastewater treatment. The nano-scale size advantage of the adsorbent is utilized to ensure a large adsorption capacity and achieve a low ratio of adsorbent usage to treated wastewater.

[0004] When magnetic nano iron oxide particles are used as adsorbents, the thickness of the adsorbent plays an important role in the adsorption process and directly affects the adsorption effect and efficiency. The side of the adsorbent close to the groundwater has more adsorbed particles, while the other side has fewer adsorbed particles, and the adsorbent cannot reach the maximum adsorption value. Summary of the invention

[0005] The purpose of the present invention is to address the problem in the background technology that the amount of particles adsorbed on both sides of the adsorbent is uneven, resulting in the adsorbent being unable to reach the maximum adsorption value, and to propose a groundwater remediation equipment and system for chromium pollutants.

[0006] On the one hand, the present invention provides a groundwater remediation equipment for chromium pollutants, comprising: a magnetic adsorption tank, a bracket is fixedly installed at the bottom of the magnetic adsorption tank, a water inlet is fixedly installed at the top of the magnetic adsorption tank, and further comprising:

[0007] Adsorption conversion part, the adsorption conversion part includes a track, a rack, a gear, a reel and an adsorption thick sheet, four tracks are arranged, and are evenly fixed on the top inner wall and the bottom inner wall of the magnetic adsorption tank respectively, the track adopts a curved U-shaped structure, the inner wall of the track is slidably connected to the reel, the upper and lower ends of the reel are rotatably connected to the gear, the inner wall of the track is provided with a single row of racks, the gears are meshed and connected with the racks, and the adsorption thick sheet is fixedly installed on the rod of the reel;

[0008] The adsorption thick sheet contacts the water inside the magnetic adsorption tank, the adsorption thick sheet has the same shape as the track, and the adsorption thick sheet moves along the track.

[0009] Optionally, the track is divided into an inner curved part and an outer curved part. When the adsorption thick sheet moves from the inner curved part of the track to the outer curved part, the contact surface between the adsorption thick sheet and the groundwater is converted. The part of the adsorption thick sheet extending into the interior of the track is fixedly installed with a rubber strip. The top of the gear is rotatably connected to an intermediate block, and the intermediate block slides on the inner wall of the track. A stepper motor is fixedly installed on the top of the intermediate block, and the stepper motor is fixedly connected to the gear through a rotating shaft. The interior of the adsorption thick sheet is filled with magnetic nano iron oxide particles.

[0010] Optionally, the two tracks at the same height are distributed at equal angles in a ring shape on the inner wall of the magnetic adsorption tank, and the two tracks are arranged around a circular ring. A notch is provided at the end of the track, and the adsorption thick sheet leaks out from the notch. Winding shafts are fixedly installed at both ends of the adsorption thick sheet. Two gears are arranged inside one of the tracks. Initially, the two gears are respectively located at the two ends of the track, and the adsorption thick sheet overlaps with the track.

[0011] Optionally, an intermediate shaft is fixedly installed at the bottom center of the gear, the bottom end of the intermediate shaft is rotatably connected to the winding shaft, and an upper tooth is fixedly installed at the bottom of the gear, the upper tooth includes a plurality of triangular blocks, and the plurality of triangular blocks are arranged in a ring and two adjacent triangular blocks are connected to each other.

[0012] Optionally, a winding piece is provided at the rod body of the intermediate shaft of the track, and the winding piece includes a lower tooth, an extrusion block, a slide plate and a lifting wedge block. The lower tooth slides up and down at the intermediate shaft, the extrusion block is fixedly installed at the bottom of the lower tooth, and a symmetrically arranged slide plate is fixedly installed at the bottom of the extrusion block. The slide plate slides up and down at the top of the winding shaft, and the lifting wedge block is fixedly installed on the inner wall of the end of the track, and the extrusion block is in contact with the lifting wedge block.

[0013] Optionally, the shape of the lower tooth is the same as that of the upper tooth. Initially, the extrusion block is in contact with the winding shaft. The extrusion block adopts a hollow truncated cone structure. The inclination angle of the inclined surface of the lifting wedge block is the same as the inclination angle of the inclined surface of the extrusion block cross section. A receiving groove for accommodating a slide plate is provided at the top of the winding shaft.

[0014] Optionally, a positioning plate is fixedly installed on the inner wall of the track near the end position, and an arc-shaped notch is opened on the side of the positioning plate facing the gear. The cylindrical part on the gear contacts the arc-shaped notch, and a ball is rotatably connected to the arc-shaped notch of the positioning plate.

[0015] Optionally, a reset regeneration component is provided in the middle of the track, and the reset regeneration component includes a support shaft, a support plate, a first brush and a second brush. The inner wall of the magnetic adsorption tank is fixedly installed with two symmetrically arranged support plates, and the two support plates are rotatably connected to the support shaft on the opposite sides. The first brush and the second brush are fixedly installed on the side of the support plate, and the first brush and the second brush are aligned with the adsorption thick sheet.

[0016] Optionally, the end of the track is fixedly connected to a support plate, a rubber sheet is laid on the support plate against one side of the adsorption thick sheet, a stirring blade is rotatably connected to the inner wall of the magnetic adsorption tank, and a water spray port is opened on the shaft of the stirring blade.

[0017] On the other hand, the present invention provides a groundwater remediation system for chromium pollutants, including the above-mentioned groundwater remediation equipment for chromium pollutants.

[0018] Compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0019] The present invention cooperates with a gear and a rack to move the gear along the track, so that the winding shaft and the adsorption thick sheet move. When the adsorption thick sheet moves from the inner curved part of the track to the outer curved part, the contact surface between the adsorption thick sheet and water is converted, so that both sides of the adsorption thick sheet can contact the groundwater, avoiding excessive filling of particles inside the adsorption thick sheet, resulting in saturation of particles on one side of the adsorption thick sheet with chromium, while the other side does not absorb chromium, converting the absorption surface, increasing the absorption amount, and reducing the number of cleaning times.

[0020] Furthermore, when the gear moves to the end position of the track, the extrusion block is squeezed by the lifting wedge and moves upward. At this time, the extrusion block docks with the upper meshing tooth, and the gear can no longer move along the track. At this time, the gear idles, so that the winding shaft winds up the adsorption slab, so that all positions on the adsorption slab are in contact with groundwater, further increasing the contact surface and improving the adsorption effect.

[0021] Furthermore, by bringing the adsorption thick sheet into contact with the first brush and the second brush, the first brush and the second brush remove impurities on the surface of the adsorption thick sheet to avoid attachment on the surface of the adsorption thick sheet that affects the magnetic adsorption chromium. When cleaning the adsorption thick sheet, the water nozzle sprays water to clean the adsorption thick sheet, and cooperates with the conversion surface of the adsorption thick sheet to clean both sides of the adsorption thick sheet, thereby improving the cleaning effect and increasing the utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention is provided;

[0023] Figure 2 It is a schematic cross-sectional view of the magnetic adsorption tank structure;

[0024] Figure 3 It is a schematic diagram of the adsorption thick sheet structure;

[0025] Figure 4 It is a top view schematic diagram of the track structure;

[0026] Figure 5 is a schematic diagram of the gear structure;

[0027] Figure 6 It is a schematic diagram of the main view of the reel structure;

[0028] Figure 7 is a schematic diagram of the second brush structure;

[0029] Figure 8 It is a flow chart of the system of the present invention.

[0030] Figure numerals: 1. magnetic adsorption tank; 2. bracket; 3. water inlet; 4. resetting regeneration part; 41. support shaft; 42. support plate; 43. first brush; 44. second brush; 45. stirring blade; 46. water spray outlet; 5. adsorption conversion part; 51. track; 52. rack; 53. gear; 54. upper gear; 55. intermediate shaft; 56. winding shaft; 57. adsorption thick sheet; 6. winding part; 61. lower gear; 62. extrusion block; 63. slide plate; 64. receiving groove; 65. lifting wedge block; 66. positioning plate; 67. ball bearing. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1

[0037] This embodiment provides a groundwater remediation equipment for chromium pollutants, such as Figure 1 As shown, it comprises a magnetic adsorption tank 1 , a bracket 2 is fixedly installed at the bottom of the magnetic adsorption tank 1 , and a water inlet 3 is fixedly installed at the top of the magnetic adsorption tank 1 .

[0038] like Figure 2-Figure 4 As shown, the inner wall of the magnetic adsorption tank 1 is provided with an adsorption conversion member 5, and the adsorption conversion member 5 includes a track 51, a rack 52, a gear 53, a winding shaft 56 and an adsorption thick sheet 57. Four tracks 51 are provided, which are evenly and fixedly installed on the top inner wall and the bottom inner wall of the magnetic adsorption tank 1 respectively. The track 51 adopts a curved U-shaped structure, and the inner wall of the track 51 is slidably connected to the winding shaft 56. The adsorption thick sheet 57 is fixedly installed at the rod body of the winding shaft 56. The adsorption thick sheet 57 is in contact with the water inside the magnetic adsorption tank 1. The adsorption thick sheet 57 has the same shape as the track 51, and the adsorption thick sheet 57 moves along the track 51.

[0039] The track 51 is divided into an inner curved part and an outer curved part. When the adsorption thick sheet 57 moves from the inner curved part to the outer curved part of the track 51, the contact surface between the adsorption thick sheet 57 and the groundwater is changed to prevent the adsorption thick sheet 57 from being too thick, which causes the side contacting the groundwater to be saturated with chromium adsorption and blockage, while the other side cannot contact the groundwater and is in an unsaturated state. The position where the adsorption thick sheet 57 contacts the groundwater is changed so that both sides of the adsorption thick sheet 57 can contact the groundwater and adsorb chromium to a saturated state, thereby increasing the absorption amount and reducing the number of cleaning times.

[0040] The part of the adsorption thick sheet 57 extending into the track 51 is fixedly installed with a rubber strip, and the interior of the adsorption thick sheet 57 is filled with magnetic nano iron oxide particles. The rubber strip replaces the adsorption thick sheet 57 to prevent the adsorption thick sheet 57 from breaking and the particles inside from falling out.

[0041] like Figure 5 As shown, the upper and lower ends of the winding shaft 56 are rotatably connected to the gear 53, the inner wall of the track 51 is provided with a single row of racks 52, the gear 53 is meshed with the rack 52, the top of the gear 53 is rotatably connected to an intermediate block, the intermediate block slides on the inner wall of the track 51, a stepper motor is fixedly installed on the top of the intermediate block, and the stepper motor is fixedly connected to the gear 53 through a rotating shaft.

[0042] The stepper motor drives the gear 53 to rotate, and the gear 53 cooperates with the rack 52 to make the gear 53 rotate and move along the track 51, so that the reel 56 and the adsorbed thick sheet 57 move, and the adsorbed thick sheet 57 moves along the track 51 to change the surface. The intermediate block prevents the gear 53 from rotating while the stepper motor rotates. After one magnetic adsorption, the stepper motor drives the gear 53 to move to the end of the track 51, and performs multiple conversions.

[0043] In this embodiment, the gear 53 and the rack 52 cooperate to move the gear 53 along the track 51, so that the winding shaft 56 and the adsorption thick sheet 57 move. When the adsorption thick sheet 57 moves from the inner curved part of the track 51 to the outer curved part, the contact surface between the adsorption thick sheet 57 and the water is converted, so that both sides of the adsorption thick sheet 57 can contact the groundwater, avoiding the adsorption thick sheet 57 from being filled with too thick particles inside, resulting in the particles on one side of the adsorption thick sheet 57 absorbing saturated chromium while the other side does not absorb chromium, converting the absorption surface, increasing the absorption amount, and reducing the number of cleaning times.

[0044] Example 2

[0045] Based on Example 1, this example proposes a groundwater remediation equipment for chromium pollutants, such as Figure 5 and 6 As shown, an intermediate shaft 55 is fixedly installed at the bottom center of the gear 53 , the bottom end of the intermediate shaft 55 is rotatably connected to the winding shaft 56 , and an upper tooth 54 is fixedly installed at the bottom of the gear 53 .

[0046] A winding member 6 is provided at the rod body of the intermediate shaft 55 of the track 51, and the winding member 6 includes a lower tooth 61, an extrusion block 62, a slide plate 63 and a lifting wedge block 65. The lower tooth 61 slides up and down at the intermediate shaft 55, and the extrusion block 62 is fixedly installed at the bottom of the lower tooth 61. The bottom of the extrusion block 62 is fixedly installed with a slide plate 63 that is symmetrically arranged. The slide plate 63 slides up and down at the top of the winding shaft 56, and the lifting wedge block 65 is fixedly installed on the inner wall of the end of the track 51, and the extrusion block 62 is in contact with the lifting wedge block 65.

[0047] When the gear 53 moves to the end position of the track 51, the extrusion block 62 is squeezed by the lifting wedge block 65 and moves upward. At this time, the extrusion block 62 is docked with the upper tooth 54, so that the extrusion block 62 and the slide plate 63 cooperate to connect the gear 53 and the winding shaft 56 together. At this time, the winding shaft 56 rotates with the gear 53 to wind up the adsorption slab 57, so that all positions on the adsorption slab 57 are in contact with the groundwater, thereby increasing the contact area.

[0048] like Figure 6 As shown, the upper tooth 54 includes a plurality of triangular blocks, which are arranged in a ring and two adjacent triangular blocks are connected to each other. The shape of the lower tooth 61 is the same as that of the upper tooth 54 , and two adjacent triangular blocks are connected to each other so that the lower tooth 61 is docked with the upper tooth 54 .

[0049] Initially, the extrusion block 62 is in contact with the winding shaft 56. The extrusion block 62 adopts a hollow truncated cone structure. The inclination angle of the inclined surface of the lifting wedge block 65 is the same as the inclination angle of the inclined surface of the cross section of the extrusion block 62. The top of the winding shaft 56 is provided with a receiving groove 64 for receiving the slide plate 63, so that the lifting wedge block 65 can squeeze the extrusion block 62.

[0050] A positioning plate 66 is fixedly installed on the inner wall of the track 51 near the end position. The positioning plate 66 has an arc-shaped notch on the side facing the gear 53. The cylindrical part of the gear 53 contacts the arc-shaped notch. A ball 67 is rotatably connected to the arc-shaped notch of the positioning plate 66.

[0051] The two tracks 51 at the same height are distributed at equal angles in a ring shape on the inner wall of the magnetic adsorption tank 1. The two tracks 51 are arranged around a circular ring. A notch is provided at the end of the track 51, and the adsorption thick sheet 57 leaks out from the notch. The notch prevents the winding shaft 56 from being stuck when winding the adsorption thick sheet 57. When the gear 53 moves to the end position of the track 51, the gear 53 can no longer move, and it idles at this time, so that the winding shaft 56 winds up the adsorption thick sheet 57.

[0052] The two ends of the adsorption thick sheet 57 are fixedly mounted with a reel 56, and two gears 53 are arranged inside a track 51. Initially, the two gears 53 are respectively located at the two ends of the track 51, and a stepping motor is connected to the center of each gear 53 to reset the adsorption thick sheet 57. The adsorption thick sheet 57 overlaps with the track 51.

[0053] In this embodiment, when the gear 53 moves to the end position of the track 51, the extrusion block 62 is squeezed by the lifting wedge block 65 and moves upward. At this time, the extrusion block 62 is docked with the upper tooth 54, and the gear 53 can no longer move along the track 51. At this time, the gear 53 is idling, so that the winding shaft 56 winds up the adsorption thick sheet 57, so that all positions on the adsorption thick sheet 57 are in contact with the groundwater, further increasing the contact surface and improving the adsorption effect.

[0054] Example 3

[0055] Based on the above-mentioned embodiment 1 or 2, this embodiment proposes a groundwater remediation equipment for chromium pollutants, such as Figure 7 As shown, a reset regeneration component 4 is provided in the middle of the track 51, and the reset regeneration component 4 includes a support shaft 41, a support plate 42, a first brush 43 and a second brush 44. The inner wall of the magnetic adsorption tank 1 is fixedly installed with two symmetrically arranged support plates 42, and the two support plates 42 are rotatably connected to the support shaft 41 on one side facing each other, and the first brush 43 and the second brush 44 are fixedly installed on the side of the support plate 42, and the first brush 43 and the second brush 44 are aligned with the adsorption thick sheet 57.

[0056] During the movement of the adsorption thick sheet 57, the adsorption thick sheet 57 contacts the first brush 43 and the second brush 44. The first brush 43 and the second brush 44 remove impurities on the surface of the adsorption thick sheet 57 to avoid attachment on the surface of the adsorption thick sheet 57 affecting the magnetic adsorption of chromium.

[0057] The end of the track 51 is fixedly connected to the support plate 42, and a rubber sheet is laid on the support plate 42 against one side of the adsorption thick sheet 57. The inner wall of the magnetic adsorption tank 1 is rotatably connected with a stirring blade 45, and a water spraying port 46 is provided at the shaft of the stirring blade 45. The adsorption thick sheet 57 is cleaned by spraying water from the water spraying port 46, and the adsorption thick sheet 57 is converted to clean both sides of the adsorption thick sheet 57, thereby improving the cleaning effect.

[0058] In this embodiment, the adsorption thick sheet 57 is brought into contact with the first brush 43 and the second brush 44, and the first brush 43 and the second brush 44 remove impurities on the surface of the adsorption thick sheet 57 to avoid attachment on the surface of the adsorption thick sheet 57 that affects the magnetic adsorption chromium. When cleaning the adsorption thick sheet 57, the water spray port 46 sprays water to clean the adsorption thick sheet 57, and cooperates with the conversion surface of the adsorption thick sheet 57 to clean both sides of the adsorption thick sheet 57, thereby improving the cleaning effect and improving the utilization rate.

[0059] like Figure 8 As shown, a groundwater remediation system for chromium pollutants includes the above-mentioned groundwater remediation equipment for chromium pollutants. First, the internal impurities of the groundwater are filtered through coarse filtration, and then the chromium in the groundwater is removed through magnetic adsorption. Finally, the pH value of the groundwater is adjusted by adding an acidic or alkaline regulator.

[0060] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A groundwater remediation equipment for chromium pollutants, comprising: A magnetic adsorption tank (1), wherein a bracket (2) is fixedly mounted on the bottom of the magnetic adsorption tank (1), and a water inlet (3) is fixedly mounted on the top of the magnetic adsorption tank (1), characterized in that it also includes: An adsorption conversion component (5), the adsorption conversion component (5) comprising a track (51), a rack (52), a gear (53), a reel (56) and an adsorption thick sheet (57), four tracks (51) are arranged, and are evenly and respectively fixedly mounted on the top inner wall and the bottom inner wall of the magnetic adsorption tank (1), the track (51) adopts a curved U-shaped structure, the inner wall of the track (51) is slidably connected to the reel (56), the upper and lower ends of the reel (56) are both rotatably connected to the gear (53), the inner wall of the track (51) is provided with a single row of racks (52), the gear (53) is meshedly connected with the rack (52), and the adsorption thick sheet (57) is fixedly mounted on the rod of the reel (56); The adsorption thick sheet (57) contacts the water inside the magnetic adsorption tank (1), the adsorption thick sheet (57) has the same shape as the track (51), and the adsorption thick sheet (57) moves along the track (51).

2. The groundwater remediation equipment for chromium pollutants according to claim 1, characterized in that: The track (51) is divided into an inner curved part and an outer curved part. When the adsorption thick sheet (57) moves from the inner curved part of the track (51) to the outer curved part, the contact surface between the adsorption thick sheet (57) and the groundwater is converted. The part of the adsorption thick sheet (57) extending into the track (51) is fixedly installed with a rubber strip. The top of the gear (53) is rotatably connected with an intermediate block. The intermediate block slides on the inner wall of the track (51). A stepper motor is fixedly installed on the top of the intermediate block. The stepper motor is fixedly connected to the gear (53) via a rotating shaft. The interior of the adsorption thick sheet (57) is filled with magnetic nano iron oxide particles.

3. The groundwater remediation equipment for chromium pollutants according to claim 2 is characterized by: The two tracks (51) at the same height are distributed at equal angles in a ring shape on the inner wall of the magnetic adsorption tank (1), and the two tracks (51) are arranged around a ring. A notch is provided at the end of the track (51), and the adsorption thick sheet (57) leaks out from the notch. The two ends of the adsorption thick sheet (57) are fixedly installed with a winding shaft (56). Two gears (53) are arranged inside one of the tracks (51). Initially, the two gears (53) are respectively located at the two ends of the track (51), and the adsorption thick sheet (57) overlaps with the track (51).

4. The groundwater remediation equipment for chromium pollutants according to claim 3 is characterized by: An intermediate shaft (55) is fixedly mounted at the bottom center of the gear (53), and the bottom end of the intermediate shaft (55) is rotatably connected to the winding shaft (56). An upper tooth (54) is fixedly mounted at the bottom of the gear (53), and the upper tooth (54) includes a plurality of triangular blocks, which surround a ring and two adjacent triangular blocks are connected to each other.

5. The groundwater remediation equipment for chromium pollutants according to claim 4, characterized in that: A winding member (6) is arranged at the rod body of the intermediate shaft (55) of the track (51), and the winding member (6) comprises a lower tooth (61), an extrusion block (62), a slide plate (63) and a lifting wedge block (65). The lower tooth (61) slides up and down on the intermediate shaft (55), the bottom of the lower tooth (61) is fixedly installed with an extrusion block (62), the bottom of the extrusion block (62) is fixedly installed with a symmetrically arranged slide plate (63), the slide plate (63) slides up and down on the top of the winding shaft (56), the inner wall of the end of the track (51) is fixedly installed with a lifting wedge block (65), and the extrusion block (62) is in contact with the lifting wedge block (65).

6. The groundwater remediation equipment for chromium pollutants according to claim 5, characterized in that: The shape of the lower tooth (61) is the same as that of the upper tooth (54). Initially, the extrusion block (62) is in contact with the winding shaft (56). The extrusion block (62) adopts a hollow truncated cone structure. The inclination angle of the inclined surface of the lifting wedge block (65) is the same as the inclination angle of the inclined surface of the cross section of the extrusion block (62). The top of the winding shaft (56) is provided with a receiving groove (64) for receiving the slide plate (63).

7. The groundwater remediation equipment for chromium pollutants according to claim 6, characterized in that: A positioning plate (66) is fixedly installed on the inner wall of the track (51) near the end position, and an arc-shaped notch is provided on the side of the positioning plate (66) facing the gear (53). The cylindrical portion on the gear (53) contacts the arc-shaped notch, and a ball (67) is rotatably connected to the arc-shaped notch of the positioning plate (66).

8. The groundwater remediation equipment for chromium pollutants according to claim 7, characterized in that: A reset regeneration component (4) is arranged in the middle of the track (51), and the reset regeneration component (4) comprises a support shaft (41), a support plate (42), a first brush (43) and a second brush (44); the inner wall of the magnetic adsorption tank (1) is fixedly mounted with two symmetrically arranged support plates (42); the two support plates (42) are rotatably connected to the support shaft (41) on one side facing each other; the first brush (43) and the second brush (44) are fixedly mounted on the side of the support plate (42); the first brush (43) and the second brush (44) are aligned with the adsorption thick sheet (57).

9. The groundwater remediation equipment for chromium pollutants according to claim 8, characterized in that: The end of the track (51) is fixedly connected to the support plate (42), and a rubber sheet is laid on one side of the support plate (42) abutting against the adsorption thick sheet (57). The inner wall of the magnetic adsorption tank (1) is rotatably connected to a stirring blade (45), and a water spraying port (46) is opened at the shaft of the stirring blade (45).

10. A groundwater remediation system for chromium contamination, characterized in that: Including the groundwater remediation equipment for chromium pollutants as described in claim 9.

Images