An adsorption separation device for heavy metal treatment of tunnel karst water

Abstract

The present invention is applicable to the field of tunnel engineering technology, and provides an adsorption separation device for heavy metal treatment of tunnel karst water, comprising: a base frame, on which an adsorption box, a separation box and a waste box are fixedly installed, which are respectively used for adsorption treatment of heavy metal ions in tunnel karst water, for heavy metal separation of chelating resin with heavy metal ions adsorbed on the surface, and for temporary storage of discarded chelating resin; wherein a top cover is provided on the top of the adsorption box, and an adsorption stirring mechanism is installed on the top cover, which is used to adsorb heavy metal ions in the tunnel karst water in the adsorption box during the stirring process; and a regeneration mechanism is installed on the separation box. The adsorption separation device for heavy metal treatment of tunnel karst water provided by this scheme can effectively adsorb heavy metals in tunnel karst water, and can regenerate the adsorption performance of the adsorbent for multiple uses, thereby reducing costs and facilitating the replacement of the adsorbent.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel engineering, and in particular relates to an adsorption separation device for heavy metal treatment of tunnel karst water. Background Art

[0002] During tunnel construction, karst water is a common geological phenomenon. However, these karst waters often contain heavy metal ions, and direct discharge will pose a potential threat to the environment and human health. At present, there are some problems in the technology for heavy metal treatment of tunnel karst water that need to be solved. For example, the patent document with the authorization announcement number "CN117700042B" discloses an adsorption and separation device for heavy metal treatment of tunnel karst water, which generates magnetic force by energizing an electromagnetic device to adsorb heavy metal ions inside the tunnel karst water.

[0003] However, the device has limited effect in practical application, because most of the heavy metals in the tunnel karst water are non-magnetic metals, and the magnetic force of the electromagnetic device cannot attract them. In addition, the heavy metals in the tunnel karst water exist in an ionic state, and the electromagnetic device cannot effectively adsorb them. In addition, the patent document fails to provide a technical solution for regenerating the adsorbent, resulting in the need to replace the adsorbent after one use, increasing the processing cost. Summary of the invention

[0004] In order to solve the technical problem that the effect of treating heavy metals in tunnel karst water by electromagnetic devices in the prior art is poor and the adsorption performance of the adsorbent cannot be regenerated, the present invention provides an adsorption separation device for treating heavy metals in tunnel karst water.

[0005] The present invention is achieved in this way. An adsorption and separation device for heavy metal treatment of tunnel karst water comprises: a base frame, on which an adsorption box, a separation box and a waste box are fixedly installed, which are respectively used for adsorption treatment of heavy metal ions in tunnel karst water, for heavy metal separation of chelating resin with heavy metal ions adsorbed on the surface, and for temporary storage of discarded chelating resin; wherein a top cover is provided on the top of the adsorption box, and an adsorption and stirring mechanism is installed on the top cover, which is used for adsorbing heavy metal ions in the tunnel karst water in the adsorption box during the stirring process; a regeneration mechanism is installed on the separation box, which is used for separating the chelating resin from the adsorbed heavy metal ions and regenerating the adsorption performance; and a discharge port is provided at the bottom of the waste box, which is used for discharging the chelating resin waste in the waste box.

[0006] Preferably, the adsorption box is equipped with a pretreatment mechanism for filtering and removing impurities from the tunnel karst water before the tunnel karst water is injected into the adsorption box to remove particulate impurities, and the pretreatment mechanism comprises: a support seat fixedly mounted on one side of the adsorption box, on which the pretreatment box is fixedly mounted; two layers of filter screen plates fixedly mounted on the inner wall of the pretreatment box, both layers of filter screen plates are inclined, and the filter hole diameter of the lower filter screen plate is smaller than the filter hole diameter of the upper filter screen plate; a sealing door hinged at an opening on one side of the pretreatment box, and a door handle is provided on the sealing door; two placement seats fixedly mounted on the inner side of the sealing door, and two collection filter boxes are placed on the two placement seats for respectively receiving solid impurities filtered out by the two filter screen plates; wherein a liquid injection interface is provided on the top of the pretreatment box, and the pretreatment box and the adsorption box are connected by a liquid injection pipe.

[0007] Preferably, a plurality of first positioning holes are formed on the placement seat, a plurality of first positioning posts are fixedly mounted on the bottom of the collecting filter box, and the plurality of first positioning posts are respectively inserted into the plurality of first positioning holes.

[0008] Preferably, the adsorption and stirring mechanism includes: a central axis tube rotatably mounted on the top cover, on which two connecting tubes connected to the central axis tube are symmetrically mounted; stirring plates fixedly mounted at the bottom ends of the two connecting tubes, respectively, the stirring plate having a structure with a hollow chamber for containing granular chelating resin for adsorbing heavy metal ions, and the connecting tube is connected to the hollow chamber of the stirring plate, and a plurality of water inlet holes are provided on both sides of the stirring plate, and the diameter of the water inlet holes is smaller than the diameter of the granular chelating resin; a driving mechanism for providing rotation of the stirring plate, the driving mechanism being arranged on a base frame; and a connecting assembly, the connecting assembly being mounted between the driving mechanism and the bottom end of the central axis tube, and being used for connecting the driving mechanism and the central axis tube.

[0009] Preferably, the driving mechanism comprises: a base fixedly mounted on the base frame, on which a reduction motor is fixedly mounted; a main gear fixedly sleeved on the output shaft of the reduction motor; and two transmission mechanisms respectively mounted on the bottom of the adsorption box and the separation box.

[0010] Preferably, the transmission mechanism includes: a first rotating shaft rotatably installed at the bottom of the machine base, a transmission gear fixedly sleeved on the first rotating shaft, and the transmission gear meshes with the main gear; a sprocket fixedly sleeved at the bottom end of the first rotating shaft; a second rotating shaft rotatably installed at the bottom of the adsorption box and / or the separation box, and the top end of the second rotating shaft extends into the adsorption box and / or the separation box; a flywheel fixedly sleeved at the bottom end of the second rotating shaft, and a chain is connected between the flywheel and the sprocket.

[0011] Preferably, the connecting assembly includes: a square rod arranged at the bottom end of the central axis tube and integrally formed with the central axis tube; a square sleeve sleeved on the square rod; an integrally formed connecting shaft is arranged at the bottom end of the square sleeve, a connecting groove is opened at the bottom end of the connecting shaft and an internal spline is arranged, and an external spline is arranged at the top end of the second rotating shaft and meshes with the internal spline at the bottom end of the connecting shaft.

[0012] Preferably, a discharging assembly is provided on the connecting shaft for discharging the chelating resin waste in the stirring plate, and the discharging assembly comprises: a bracket fixedly mounted on the connecting shaft, the bracket being used for auxiliary support of the two stirring plates; two blocks symmetrically fixed on the top of the bracket, the two blocks being respectively inserted into the discharging ports opened at the bottom of the two stirring plates, and the two discharging ports being respectively connected to the hollow chambers of the two stirring plates; a small electric telescopic rod and a battery box fixedly mounted in the square sleeve, the output rod of the electric telescopic rod being fixedly connected to the bottom end of the square rod; wherein the square sleeve and the square rod are slidably connected in the vertical direction.

[0013] Preferably, a spiral blade is fixedly sleeved on the connecting shaft to make the liquid in the adsorption box surge upward during rotation, thereby improving the contact between the heavy metal ions in the tunnel karst water and the chelating resin in the stirring plate.

[0014] Preferably, a protective cover is fixedly mounted on the bottom of the chassis, and the main gear, transmission gear, sprocket, flywheel and chain are all located inside the protective cover.

[0015] Preferably, a lifting and rotating mechanism is provided above the base frame, which is used to lift and lower the top cover and the adsorption and stirring mechanism and rotate them to drop them into the separation box for heavy metal ion washing and separation operations. The lifting and rotating mechanism includes: the same support plate fixedly mounted on the outer walls of the adsorption box, the separation box and the waste box; a plurality of hydraulic cylinders fixedly mounted on the top of the support plate; a frame fixedly mounted on the top of the output rods of the plurality of hydraulic cylinders, a stepper motor fixedly mounted in the frame; a connecting plate fixedly mounted on the top of the output shaft of the component motor, the connecting plate being fixedly connected to the top of the top cover by screws.

[0016] Preferably, the regeneration mechanism includes: a plurality of mounting tubes fixedly mounted on the inner wall of the separation box, each of which is provided with a plurality of nozzles; a plurality of connecting elbows respectively fixedly mounted on the top ends of the plurality of mounting tubes, the other ends of the plurality of elbows extending to the outside of the separation box, and the bottom ends of the mounting tubes being a closed structure; a pump seat fixedly mounted on the side wall of the separation box, a liquid pump fixedly mounted on the pump seat, a multi-way tube being mounted on the output end of the liquid pump, and the remaining ports of the multi-way tube being respectively connected to one end of the plurality of elbows; wherein the liquid inlet end of the liquid pump is connected with a liquid inlet tube for extracting a flushing solution of an external device, and the flushing solution flushes the chelating resin in the stirring plate to separate the heavy metal ions.

[0017] Preferably, a storage box is fixedly installed at the center position of the bottom inner wall of the waste box for holding the chelating resin to be used, the bottom of the waste box is provided with a drawing port connected to the storage box, and a pumping mechanism is installed on the storage box for pumping the chelating resin to be used in the storage box into the hollow chamber of the stirring plate, the pumping mechanism comprises: a pumping machine fixedly installed on the side wall of the waste box, the feed end of the pumping machine is connected to a feed pipe, and the other end of the feed pipe is connected to the drawing port; a telescopic hose fixedly connected to the discharge end of the pumping machine; a circular sleeve that is rotatable and sealingly sleeved on the top end of the central axis tube, the circular sleeve is fixedly connected to the top cover, and the other end of the telescopic hose is fixedly sleeved on the top end of the circular sleeve.

[0018] Preferably, heating blocks are fixedly mounted on the side walls of the adsorption box and the separation box, and corresponding temperature controllers are provided on the outer walls of the adsorption box and the separation box.

[0019] Preferably, the bottom of the adsorption box and the separation box are both provided with drain pipes for discharging the treated liquid in the adsorption box and the separation box respectively.

[0020] Preferably, a drug adding port is provided on the top of the top cover for adding drugs into the adsorption box to change the tunnel karst water environment in the adsorption box, such as pH value.

[0021] Compared with the related art, the adsorption separation device for heavy metal treatment of tunnel karst water provided by the present invention has the following beneficial effects:

[0022] The present invention uses granular chelate resin as an adsorbent, and stirs it in an adsorption box through a stirring plate, so that the chelate resin is fully in contact with the heavy metal ions in the tunnel karst water, thereby achieving efficient adsorption of heavy metal ions. Compared with the electromagnetic device, the adsorption effect of the present invention is more significant, and more types of heavy metal ions can be treated.

[0023] The invention is provided with a separation box and a regeneration mechanism, and heavy metal ions adsorbed on the chelate resin are separated by spraying and flushing liquid, thereby restoring the adsorption performance of the chelate resin. This design not only reduces the processing cost, but also improves the utilization efficiency of resources.

[0024] The present invention arranges a pretreatment mechanism in front of the adsorption box, and filters and removes impurities from the tunnel karst water through two layers of filter screens to remove particulate impurities, thereby preventing the impurities from interfering with the adsorption process and further improving the adsorption effect.

[0025] The present invention designs a lifting and rotating mechanism and a pumping mechanism, which realizes the lifting and rotating of the top cover and the adsorption and stirring mechanism and the automatic addition and replacement of the chelating resin. These designs make the operation of the device more flexible and convenient, and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A rear structural schematic diagram of an adsorption and separation device for heavy metal treatment of tunnel karst water provided by the present invention;

[0027] Figure 2 It is a rear view structural schematic diagram when the waste box is not installed in the present invention;

[0028] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0029] Figure 4 A schematic diagram of the front cross-sectional structure of an adsorption and separation device for heavy metal treatment of tunnel karst water provided by the present invention;

[0030] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of part B shown in FIG.

[0031] Figure 6 for Figure 4 An enlarged schematic diagram of the structure of part C shown in FIG.

[0032] Figure 7 for Figure 4 An enlarged structural diagram of part D shown in FIG.

[0033] Figure 8 for Figure 4 An enlarged structural diagram of part E shown in FIG.

[0034] Fig. 9 for Figure 4 An enlarged structural diagram of part F shown in FIG.

[0035] Fig.10 for Fig. 9 An enlarged schematic diagram of the structure of part B shown in FIG.

[0036] Fig.11 It is a schematic diagram of the front cross-sectional structure of the connection assembly in the present invention;

[0037] Fig.12 It is a top view schematic diagram of the assembly of the support plate and the hydraulic cylinder in the present invention;

[0038] Fig.13 It is a top view assembly diagram of the base frame, adsorption box, separation box and waste box in the present invention.

[0039] Figure numerals: 1, chassis; 2, adsorption box; 3, separation box; 4, waste box; 5, top cover; 6, support seat; 7, pretreatment box; 8, filter screen; 9, sealing door; 10, placement seat; 11, collection filter box; 12, first positioning column; 13, middle axis tube; 14, connecting pipe; 15, stirring plate; 16, machine base; 17, reduction motor; 18, main gear; 19, first rotating shaft; 20, transmission gear; 21, sprocket; 22, second rotating shaft; 23, flywheel; 24, chain; 25, square rod; 26, square sleeve; 27, connection Axis; 28, bracket; 29, block; 30, electric telescopic rod; 301, battery box; 31, spiral blade; 32, protective cover; 33, support plate; 34, hydraulic cylinder; 35, frame; 36, stepper motor; 37, connecting plate; 38, mounting pipe; 39, nozzle; 40, connecting elbow; 41, pump seat; 42, liquid pump; 43, multi-way pipe; 44, storage box; 45, discharge port; 46, pumping machine; 47, feed pipe; 48, telescopic hose; 49, round sleeve; 50, heating block; 51, discharge pipe; 52, dosing port. DETAILED DESCRIPTION

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification of this application and the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] The embodiment of the present invention provides an adsorption separation device for treating heavy metals in tunnel karst water, such as Figure 1-13As shown, the adsorption and separation device for heavy metal treatment of tunnel karst water comprises: a base frame 1, on which an adsorption box 2, a separation box 3 and a waste box 4 are fixedly installed, which are respectively used for adsorption treatment of heavy metal ions in tunnel karst water, for heavy metal separation of chelating resin with heavy metal ions adsorbed on the surface, and for temporary storage of discarded chelating resin; wherein, a top cover 5 is provided on the top of the adsorption box 2, and an adsorption and stirring mechanism is installed on the top cover 5, which is used for adsorbing heavy metal ions in the tunnel karst water in the adsorption box 2 during the stirring process; a regeneration mechanism is installed on the separation box 3, which is used for separating the chelating resin from the adsorbed heavy metal ions and regenerating the adsorption performance; and a discharge port 45 is provided at the bottom of the waste box 4, which is used for discharging the chelating resin waste in the waste box 4.

[0043] In this embodiment, the device mainly includes a base frame 1, on which an adsorption box 2, a separation box 3 and a waste box 4 are firmly installed. In the adsorption treatment stage, a top cover 5 is provided on the top of the adsorption box 2, and an adsorption stirring mechanism is equipped on the top cover 5 to adsorb heavy metal ions in the tunnel karst water. Through stirring, the chelating resin is fully in contact with the heavy metal ions to achieve efficient adsorption.

[0044] After the adsorption is completed, the chelate resin containing heavy metal ions is transferred to the separation box 3. The separation box 3 is equipped with a regeneration mechanism, which extracts the external flushing liquid and sprays it on the chelate resin to separate the heavy metal ions from the chelate resin, thereby achieving the regeneration of the chelate resin, restoring its adsorption performance, and reducing the processing cost.

[0045] In the whole processing, waste bin 4 plays the effect of temporarily storing abandoned resin. When resin reaches service life or cannot be regenerated, it is discharged through the discharge port 45 at waste bin 4 bottoms.

[0046] In a further preferred embodiment of the present invention, the adsorption box 2 is equipped with a pretreatment mechanism for filtering and removing impurities from the tunnel karst water before the tunnel karst water is injected into the adsorption box 2 to remove particulate impurities, and the pretreatment mechanism includes: a support seat 6 fixedly mounted on one side of the adsorption box 2, and a pretreatment box 7 fixedly mounted on the support seat 6; two layers of filter screen plates 8 fixedly mounted on the inner wall of the pretreatment box 7, both layers of filter screen plates 8 are inclined, and the filter hole diameter of the lower filter screen plate 8 is smaller than the filter hole diameter of the upper filter screen plate 8; a sealing door 9 hinged at an opening on one side of the pretreatment box 7, and a door handle is provided on the sealing door 9; two placement seats 10 fixedly mounted on the inner side of the sealing door 9, and two collection filter boxes 11 are placed on the two placement seats 10 for respectively receiving solid impurities filtered out by the two filter screen plates 8; wherein a liquid injection interface is provided on the top of the pretreatment box 7, and the pretreatment box 7 and the adsorption box 2 are connected by a liquid injection pipe.

[0047] In this embodiment, the adsorption box 2 is equipped with a pretreatment mechanism, which is designed to filter and remove impurities from the tunnel karst water before it enters the adsorption box 2. The pretreatment mechanism is composed of multiple key components, which together achieve efficient pretreatment of the tunnel karst water.

[0048] The support base 6 is firmly mounted on one side of the adsorption box 2, providing reliable support for the pretreatment box 7. Two layers of filter screens 8 are fixedly mounted on the inner wall of the pretreatment box 7. Both layers of filter screens 8 are inclined to facilitate smooth sliding of impurities. In particular, the filter hole diameter of the lower filter screen 8 is smaller than that of the upper filter screen. This design can more effectively intercept particle impurities of different sizes and achieve fine filtration.

[0049] A sealed door 9 is hinged at one side opening of the pretreatment box 7, and a door handle is installed on the sealed door 9 for easy operation. Two placement seats 10 are fixedly installed inside the sealed door 9, and two collection filter boxes 11 are placed on each placement seat 10. These four collection filter boxes 11 correspond to the positions of the two layers of filter screen plates 8, respectively, and are used to receive the filtered solid impurities to ensure the cleanliness of the inside of the pretreatment box 7.

[0050] An injection interface is provided on the top of the pretreatment box 7 for connecting to an external tunnel karst water injection channel. At the same time, the pretreatment box 7 and the adsorption box 2 are connected via an injection pipe to ensure that the pretreated tunnel karst water can smoothly enter the adsorption box 2 for subsequent adsorption treatment.

[0051] During use, the tunnel karst water is first injected into the pretreatment box 7 through the injection interface of the pretreatment mechanism. Under the action of gravity, the water flows through two layers of inclined filter screens 8, and impurities are intercepted layer by layer and slide into the corresponding collection filter box 11. The filtered clean water flows into the adsorption box 2 through the injection pipe, and the adsorption stirring mechanism performs adsorption treatment of heavy metal ions.

[0052] The design of this pretreatment mechanism effectively removes particulate impurities in the tunnel karst water, avoids the interference of these impurities in the subsequent adsorption process, and improves the adsorption efficiency.

[0053] In a further preferred embodiment of the present invention, a plurality of first positioning holes are formed on the placement seat 10, a plurality of first positioning posts 12 are fixedly mounted on the bottom of the collection filter box 11, and the plurality of first positioning posts 12 are respectively inserted into the plurality of first positioning holes.

[0054] In this embodiment, in order to enhance the stability and firmness of the collection filter box 11 on the placement seat 10, a plurality of first positioning holes are specially opened on the placement seat 10, and a plurality of first positioning posts 12 are fixedly installed on the bottom of the collection filter box 11. These first positioning posts 12 correspond to the first positioning holes one by one. When the collection filter box 11 is placed on the placement seat 10, the first positioning posts 12 are inserted into the first positioning holes, thereby achieving accurate positioning and stable installation of the collection filter box 11. Even in the case of water flow impact and impurities falling in, the collection filter box 11 can remain stable and motionless, effectively preventing the overflow of impurities and the collection filter box 11, which is convenient for the subsequent treatment of impurities.

[0055] In a further preferred embodiment of the present invention, the adsorption and stirring mechanism includes: a central axis tube 13 rotatably mounted on the top cover 5, two connecting tubes 14 connected to the central axis tube 13 are symmetrically mounted on the central axis tube 13; stirring plates 15 fixedly mounted on the bottom ends of the two connecting tubes 14 respectively, the stirring plates 15 are structures with hollow chambers, used to hold granular chelating resins for adsorbing heavy metal ions, and the connecting tubes 14 are connected to the hollow chambers of the stirring plates 15, and multiple water inlet holes are provided on both sides of the stirring plates 15, and the diameter of the water inlet holes is smaller than the diameter of the granular chelating resin; a driving mechanism for providing rotation of the stirring plate 15, the driving mechanism is arranged on the base frame 1; and a connecting assembly, the connecting assembly is installed between the driving mechanism and the bottom end of the central axis tube 13, and is used for connecting the driving mechanism and the central axis tube 13.

[0056] In this embodiment, the adsorption stirring mechanism is intended to improve the contact efficiency between heavy metal ions and adsorbents in the tunnel karst water, thereby improving the adsorption effect of heavy metal ions. The mechanism mainly includes: a central axis tube 13 rotatably mounted on the top cover 5, and two connecting tubes 14 are symmetrically connected to the central axis tube 13; stirring plates 15 are respectively fixed at the bottom ends of the two connecting tubes 14, and the stirring plates 15 have hollow chambers for storing granular chelating resins and are connected to the connecting tubes 14; a driving mechanism is provided on the bottom frame 1, which is connected to the bottom end of the central axis tube 13 through a connecting assembly to realize the rotation of the stirring plates 15.

[0057] During use, the driving mechanism drives the central axis tube 13 to rotate through the connecting assembly, thereby driving the stirring plate 15 to stir in the tunnel karst water. The granular chelating resin in the stirring plate 15 moves with the rotation of the stirring plate 15, and fully contacts the heavy metal ions in the tunnel karst water. The heavy metal ions are adsorbed by the resin, replaced with the sodium ions on the chelating resin, and enter the water. This design not only improves the adsorption efficiency, but also ensures full contact between the silicon wafer and the adsorbent, thereby improving the overall heavy metal removal effect.

[0058] The salt content of karst water has increased slightly, but this increase in salt content will not have a direct impact on human health and does not require special treatment.

[0059] In a further preferred embodiment of the present invention, the driving mechanism includes: a base 16 fixedly mounted on the base frame 1, on which a reduction motor 17 is fixedly mounted; a main gear 18 fixedly sleeved on the output shaft of the reduction motor 17; and two transmission mechanisms respectively mounted at the bottom of the adsorption box 2 and the separation box 3.

[0060] In this embodiment, the design of the driving mechanism provides a stable and controllable power source for the entire adsorption and stirring mechanism. Specifically, the driving mechanism includes a base 16 fixedly mounted on the base frame 1, and a reduction motor 17 is firmly mounted on the base 16. A main gear 18 is fixedly sleeved on the output shaft of the reduction motor 17, and this design ensures the effective transmission of the motor power. In addition, a transmission mechanism is installed at the bottom of each of the adsorption box 2 and the separation box 3. These transmission mechanisms cooperate with the main gear 18 to jointly realize the rotation of the central axis tube 13 and the stirring plate 15. When the reduction motor 17 is started, its output shaft drives the main gear 18 to rotate, and then drives the central axis tube 13 to rotate through the transmission mechanism. The rotation of the central axis tube 13 drives the connecting tube 14 and the stirring plate 15 connected thereto, so that the granular chelating resin in the stirring plate 15 can fully contact the silicon wafer to achieve efficient heavy metal ion adsorption.

[0061] In a further preferred embodiment of the present invention, the transmission mechanism includes: a first rotating shaft 19 rotatably mounted at the bottom of the machine base 16, a transmission gear 20 being fixedly sleeved on the first rotating shaft 19, and the transmission gear 20 is meshed with the main gear 18; a sprocket 21 fixedly sleeved at the bottom end of the first rotating shaft 19; a second rotating shaft 22 rotatably mounted at the bottom of the adsorption box 2 and / or the separation box 3, and the top end of the second rotating shaft 22 extends into the adsorption box 2 and / or the separation box 3; a flywheel 23 fixedly sleeved at the bottom end of the second rotating shaft 22, and a chain 24 is connected between the flywheel 23 and the sprocket 21.

[0062] In this embodiment, the design of the transmission mechanism ingeniously realizes the transmission and conversion of power, and provides stable and reliable support for the rotation of the stirring plate 15. The transmission mechanism specifically includes a first rotating shaft 19 rotatably mounted at the bottom of the base 16, and a transmission gear 20 is fixed on the first rotating shaft 19, and the transmission gear 20 is tightly meshed with the main gear 18, thereby ensuring that the power of the reduction motor 17 can be smoothly transmitted to the first rotating shaft 19.

[0063] At the bottom end of the first rotating shaft 19, a sprocket 21 is fixedly sleeved, and this design facilitates further transmission of power through a chain 24. At the same time, at the bottom of the adsorption box 2 and / or the separation box 3, a second rotating shaft 22 is rotatably mounted, and its top end extends into the adsorption box 2 or the separation box 3. A flywheel 23 is fixed to the bottom end of the second rotating shaft 22, and the flywheel 23 is connected to the sprocket 21 through a chain 24, forming a stable power transmission link.

[0064] It should be noted that the flywheel 23 in this embodiment has a similar function to the flywheel of a bicycle, and the chain 24 can drive the second rotating shaft 22 to rotate through the flywheel 23 in one rotation direction; when the chain 24 rotates in the opposite direction, the second rotating shaft 22 does not rotate. In this way, in this solution, no matter how the main motor rotates, only one of the two second rotating shafts 22 rotates, thereby reducing the wear caused by the unnecessary rotation of the non-working second rotating shaft.

[0065] When the reduction motor 17 is started, its output shaft drives the main gear 18 to rotate, and then drives the transmission gear 20 and the first rotating shaft 19 to rotate. The rotation of the first rotating shaft 19 drives the sprocket 21, and the sprocket 21 transmits power to the flywheel 23 through the chain 24, and finally drives the second rotating shaft 22 to rotate. Since the top of the second rotating shaft 22 extends into the separation box 2 or the adsorption box 3 and is connected to the central axis tube 13 (or through other connecting parts), the rotation of the second rotating shaft 22 can drive the stirring plate 15 to rotate in the tunnel karst water, so as to achieve efficient adsorption of heavy metal ions.

[0066] In a further preferred embodiment of the present invention, the connecting assembly includes: a square rod 25 arranged at the bottom end of the central axis tube 13 and integrally formed with the central axis tube 13; a square sleeve 26 sleeved on the square rod 25; an integrally formed connecting shaft 27 is arranged at the bottom end of the square sleeve 26, a connecting groove is opened at the bottom end of the connecting shaft 27 and an internal spline is arranged, and an external spline is arranged at the top end of the second rotating shaft 22 and meshes with the internal spline at the bottom end of the connecting shaft 27.

[0067] In this embodiment, the design of the connection assembly ensures a stable and detachable connection between the central axis tube 13 and the second rotating shaft 22, and provides reliable support for the rotation of the stirring plate 15. The connection assembly specifically includes a square rod 25 arranged at the bottom end of the central axis tube 13, and the square rod 25 is integrally formed with the central axis tube 13, which enhances the strength and stability of the structure. A square sleeve 26 is sleeved on the square rod 25, and this design enables the square sleeve 26 to rotate with the square rod 25. An integrally formed connecting shaft 27 is arranged at the bottom end of the square sleeve 26, and a connecting groove is provided at the bottom end of the connecting shaft 27, and an internal spline is provided. This design enables the connecting shaft 27 to achieve precise meshing with the top end of the second rotating shaft 22. An external spline is provided at the top end of the second rotating shaft 22. When the second rotating shaft 22 rotates, the external spline at its top end will mesh with the internal spline at the bottom end of the connecting shaft 27, thereby achieving a stable connection between the central axis tube 13 and the second rotating shaft 22. This connection mode not only transmits power, but also ensures the synchronization between the middle shaft tube 13 and the second rotating shaft 22 during the rotation process.

[0068] During use, when the reduction motor 17 is started, its output shaft drives the main gear 18 to rotate, and then drives the second rotating shaft 22 to rotate through the transmission mechanism. Since the top of the second rotating shaft 22 is meshed with the connecting shaft 27, the rotation of the second rotating shaft 22 drives the connecting shaft 27 and the square sleeve 26 to rotate together. The rotation of the square sleeve 26 drives the square rod 25 and the central axis tube 13, and finally makes the stirring plate 15 rotate in the soaking liquid, realizing the efficient adsorption of heavy metal ions.

[0069] In a further preferred embodiment of the present invention, a discharging assembly is provided on the connecting shaft 27 for discharging the chelating resin waste in the stirring plate 15, and the discharging assembly includes: a bracket 28 fixedly sleeved on the connecting shaft 27, and the bracket 28 is used to auxiliary support the two stirring plates 15; two blocks 29 symmetrically fixed on the top of the bracket 28, and the two blocks 29 are respectively inserted into the discharging ports opened at the bottom of the two stirring plates 15, and the two discharging ports are respectively connected to the hollow chambers of the two stirring plates 15; a small electric telescopic rod 30 and a battery box fixedly installed in the square sleeve 26, and the output rod of the electric telescopic rod 30 is fixedly connected to the bottom end of the square rod 25; wherein the square sleeve 26 is slidably connected to the square rod 25 in the vertical direction.

[0070] After repeated regeneration, the chelating resin also needs to be replaced, so the chelating resin waste needs to be discharged. In the present embodiment, a discharging assembly is cleverly provided on the connecting shaft 27, and this design is intended to conveniently and efficiently discharge the chelating resin waste in the stirring plate 15. The discharging assembly is composed of a plurality of well-designed components, which together realize the smooth discharge of waste. Specifically, the discharging assembly comprises a bracket 28 fixedly sleeved on the connecting shaft 27, and the bracket 28 not only provides auxiliary support for the two stirring plates 15, but also ensures the stable installation of the discharging assembly. At the top of the bracket 28, two blocks 29 are symmetrically fixed, and these two blocks 29 are respectively inserted into the discharging ports opened at the bottoms of the two stirring plates 15. Importantly, the two discharging ports are connected in the hollow chamber of the stirring plate 15, providing a channel for the discharge of waste. In addition, in the square sleeve 26, a small electric telescopic rod 30 and a battery box are fixedly installed. The output rod of the electric telescopic rod 30 is fixedly connected to the bottom end of the square rod 25. This design enables the electric telescopic rod 30 to drive the square rod 25 to slide in the vertical direction. Since the square sleeve 26 is slidably connected to the square rod 25 in the vertical direction, when the electric telescopic rod 30 is extended or retracted, the square rod 25 and the entire central axis tube 13 are driven to move up and down.

[0071] During use, when the chelate resin waste in the stirring plate 15 needs to be discharged, after the top cover 5 and the adsorption stirring mechanism are transferred to the top of the waste box 4, it is only necessary to start the electric telescopic rod 30 to make the square sleeve and the connecting shaft 27 descend, so that the discharge port at the bottom of the stirring plate 15 is separated from the block 29, and the waste can be discharged smoothly through the discharge port. After discharging the waste, the electric telescopic rod 30 is controlled to retract so that the stirring plate 15 returns to its original position. The design of the discharge assembly provides an effective solution for the discharge of the chelate resin waste in the stirring plate 15, thereby further improving the performance and efficiency of the entire silicon chip heavy metal treatment system.

[0072] In a further preferred embodiment of the present invention, a spiral blade 31 is fixedly sleeved on the connecting shaft 27 for causing the liquid in the adsorption box 2 to surge upward during rotation, thereby increasing the contact between the heavy metal ions in the tunnel karst water and the chelating resin in the stirring plate 15.

[0073] In this embodiment, a spiral blade 31 is innovatively fixedly mounted on the connecting shaft 27. This design cleverly utilizes the rotation of the connecting shaft 27 to make the liquid in the adsorption box 2 surge upward, thereby greatly improving the contact efficiency between the heavy metal ions in the tunnel karst water and the chelating resin in the stirring plate 15.

[0074] When the reduction motor 17 is started, its power is transmitted to the second rotating shaft 22 through the transmission mechanism, thereby driving the connecting shaft 27 to rotate. Since the spiral blade 31 is fixedly sleeved on the connecting shaft 27, it will rotate with the connecting shaft 27. During the rotation process, the spiral blade 31 has a driving effect on the liquid in the adsorption box 2, so that the liquid forms an upward vortex. This vortex effect not only promotes the circulation and mixing of the liquid, but also enables the heavy metal ions to contact the chelating resin in the stirring plate 15 more fully. Chelating resin has a strong adsorption capacity for heavy metal ions. By increasing the contact opportunity, the adsorption efficiency can be significantly improved, thereby removing the heavy metal ions in the tunnel karst water faster. In addition, the design of the spiral blade 31 also enhances the disturbance of the liquid in the adsorption box 2, helps to break the concentration gradient that may be formed, and further improves the removal effect of heavy metal ions.

[0075] In a further preferred embodiment of the present invention, a protective cover 32 is fixedly installed at the bottom of the base frame 1, and the main gear 18, the transmission gear 20, the sprocket 21, the flywheel 23 and the chain 24 are all located in the protective cover 32.

[0076] In this embodiment, a fixed protective cover 32 is cleverly designed at the bottom of the chassis 1. The main function of the protective cover 32 is to provide a closed space to protect the key transmission components inside from interference and damage from the external environment. Specifically, the main gear 18, the transmission gear 20, the sprocket 21, the flywheel 23 and the chain 24, which are important transmission components, are cleverly placed inside the protective cover 32.

[0077] In a further preferred embodiment of the present invention, a lifting and rotating mechanism is arranged above the base frame 1, which is used to lift and lower the top cover 5 and the adsorption and stirring mechanism and rotate and lower them into the separation box 3 to perform heavy metal ion washing and separation operations, and the lifting and rotating mechanism includes: a same support plate 33 fixedly mounted on the outer walls of the adsorption box 2, the separation box 3 and the waste box 4; a plurality of hydraulic cylinders 34 fixedly mounted on the top of the support plate 33; a frame 35 fixedly mounted on the top of the output rods of the plurality of hydraulic cylinders 34, a stepping motor 36 fixedly mounted in the frame 35; a connecting plate 37 fixedly mounted on the top of the output shaft of the component motor 36, and the connecting plate 37 is fixedly connected to the top of the top cover 5 by screws.

[0078] In this embodiment, a lifting and rotating mechanism is innovatively provided above the base frame 1, and the design of this mechanism is intended to realize the lifting and rotating functions of the top cover 5 and the adsorption and stirring mechanism, so that they can be accurately dropped into the separation box 3 to perform the washing and separation operation of heavy metal ions.

[0079] The core components of the lifting and rotating mechanism include a support plate 33, a hydraulic cylinder 34, a frame 35, a stepper motor 36 and a connecting plate 37. The support plate 33 is firmly fixed on the outer wall of the adsorption box 2, the separation box 3 and the waste box 4, providing a stable support foundation for the entire lifting and rotating mechanism. A plurality of hydraulic cylinders 34 are vertically fixed on the top of the support plate 33, and the top ends of their output rods are connected to the frame 35. A stepper motor 36 is fixedly installed inside the frame 35, and the top end of the output shaft of the stepper motor 36 is fixedly connected to the connecting plate 37. The connecting plate 37 is tightly connected to the top of the top cover 5 by screws, thereby realizing a firm control of the top cover 5 and the adsorption and stirring mechanism below.

[0080] In use, when the stirring plate 15 after the adsorption needs to be rinsed and separated, the hydraulic cylinder 34 is first started, and the stepping motor 36, the connecting plate 37 and the top cover 5 of the promotion framework 35 and its inside are lifted upwards as a whole, and after breaking away from the adsorption box 2, the stepping motor 36 starts working, and the connecting plate 37 and the top cover 5 are driven to rotate together by the rotation of its output shaft, so that the adsorption stirring mechanism is aimed at the opening of the separation box 3. After completing the alignment, the hydraulic cylinder 34 is started again, but this time is to move downward, and the top cover 5 and the adsorption stirring mechanism are accurately dropped in the separation box 3. In the separation box 3, the chelated resin in the stirring plate 15 can be rinsed by modes such as spraying flushing liquid, thereby isolating the heavy metal ions.

[0081] In a further preferred embodiment of the present invention, the regeneration mechanism includes: a plurality of mounting tubes 38 fixedly mounted on the inner wall of the separation box 3, each of the plurality of mounting tubes 38 being equipped with a plurality of nozzles 39; a plurality of connecting elbows 40 respectively fixedly mounted on the top ends of the plurality of mounting tubes 38, the other ends of the plurality of elbows 40 extending to the outside of the separation box 3, and the bottom ends of the mounting tubes 38 being a closed structure; a pump seat 41 fixedly mounted on the side wall of the separation box 3, a liquid pump 42 fixedly mounted on the pump seat 41, a multi-way tube 43 being mounted on the output end of the liquid pump 42, and the remaining ports of the multi-way tube 43 being respectively connected to one end of the plurality of elbows 40; wherein the liquid inlet end of the liquid pump 42 is connected with a liquid inlet tube for extracting a flushing solution of an external device, and the flushing solution flushes the chelating resin in the stirring plate 15 to separate the heavy metal ions.

[0082] In the present embodiment, the regeneration mechanism is mainly used for flushing the resin in the stirring plate so that the heavy metal ions are separated. Specifically, the liquid pump 42 extracts the external flushing liquid through the liquid inlet pipe, and transports the liquid to the multi-way pipe 43. The multi-way pipe 43 distributes the liquid to a plurality of connecting elbows 40, and then flows into the installation pipe 38. Finally, the liquid sprays through a plurality of nozzles 39 on the installation pipe 38, flushes the resin in the stirring plate 15, and the heavy metal ions are separated. This regeneration mechanism can efficiently and evenly flush the resin in the stirring plate, improves the separation efficiency of the heavy metal ions. At the same time, by spraying simultaneously through a plurality of nozzles 39, it is ensured that the comprehensiveness and uniformity of flushing are further improved.

[0083] The resin layer is rinsed with a flushing solution (such as salt water and sodium chloride NaCl solution). The sodium ion content in the solution is high. Under the action of sodium ions, the functional groups on the resin release the bound heavy metal ions and re-bind with the sodium ions. The heavy metal ions are discharged with the regeneration waste liquid, and the resin recovers its exchange capacity and is ready for the next round of use. In short, flushing the resin with salt water can replace the heavy metal ions because the sodium ions have a stronger ability to bind to the functional groups on the resin, thereby promoting the release of heavy metal ions and the regeneration of the resin.

[0084] It should be noted that chelating resins usually have the ability to selectively bind to certain specific ions. This selectivity is based on the size, charge, and properties of the functional groups on the resin. When karst water passes through the resin, although sodium ions have a strong binding ability with the functional groups on the resin, heavy metal ions are more easily adsorbed by the resin under specific conditions (such as concentration, pH value, etc.) due to their charge density, ion radius, or interactions with other factors. When the concentration of heavy metal ions in karst water is high, their chances of contact with the resin increase, making it possible for them to overcome the competition with sodium ions and be adsorbed by the resin.

[0085] In addition, the ion exchange process is also affected by the concentration gradient. When karst water passes through the resin, the concentration of heavy metal ions is usually higher than the concentration of sodium ions in the resin, which helps to promote the ion exchange;

[0086] After the resin has adsorbed a certain amount of heavy metal ions, its exchange capacity decreases. At this time, flushing the resin with high-concentration salt water can create an environment where the sodium ion concentration is much higher than that of heavy metal ions.

[0087] In this environment, the ability of sodium ions to bind to the functional groups on the resin is enhanced, thereby promoting the release of heavy metal ions and the regeneration of the resin.

[0088] In summary, although sodium ions have a strong binding ability with the functional groups on the resin, when karst water passes through the resin, heavy metal ions can be adsorbed by the resin due to the combined effect of factors such as the concentration of heavy metal ions, charge properties, and selectivity of the resin. During the resin regeneration process, creating a high-concentration sodium ion environment can promote the release of heavy metal ions and the regeneration of the resin.

[0089] In a further preferred embodiment of the present invention, a storage box 44 is fixedly installed at the center position of the bottom inner wall of the waste box 4 for holding the chelating resin to be used, the bottom of the waste box 4 is provided with a drawing port connected to the storage box 44, and a pumping mechanism is installed on the storage box 44 for pumping the chelating resin to be used in the storage box 44 into the hollow chamber of the stirring plate 15, the pumping mechanism comprises: a pumping machine 46 fixedly installed on the side wall of the waste box 4, the feed end of the pumping machine 46 is connected to a feed pipe 47, and the other end of the feed pipe 47 is connected to the drawing port; a telescopic hose 48 fixedly connected to the discharge end of the pumping machine 46; a circular sleeve 49 rotatably and sealingly sleeved on the top end of the central axis tube 13, the circular sleeve 49 is fixedly connected to the top cover 5, and the other end of the telescopic hose 48 is fixedly sleeved on the top end of the circular sleeve 49.

[0090] In the present embodiment, the bottom design of waste box 4 has storage box 44, and this design has solved the storage and conveying problem of chelated resin skillfully. Storage box 44 is specially designed to hold the chelated resin to be used, and through the extraction port connected with waste box 4 bottoms, has realized the convenient connection with pumping mechanism.

[0091] The core components of the pumping mechanism include a pumping machine 46, a feed pipe 47, a telescopic hose 48 and a circular sleeve 49. The pumping machine 46 is firmly fixed on the side wall of the waste bin 4, and its feed end is closely connected with the extraction port through the feed pipe 47, so that the chelate resin in the storage bin 44 can be easily extracted. One end of the telescopic hose 48 is fixed to the discharge end of the pumping machine 46, and the other end is cleverly sleeved on the top of the circular sleeve 49. The circular sleeve 49 is not only rotatably and sealingly sleeved on the top of the central axis tube 13, but also fixedly connected to the top cover 5, ensuring the sealing and stability of the chelate resin during the transportation process.

[0092] During use, when the chelated resin in the stirring plate 15 needs to be replaced, the pumping machine 46 is first started to extract the chelated resin to be used from the storage box 44 through the feed pipe 47. Subsequently, the chelated resin is transported by the telescopic hose 48, finally enters the circular sleeve 49, and is accurately delivered to the hollow chamber of the stirring plate 15 along the internal channel of the central axis tube 13. In this process, the flexibility of the telescopic hose 48 ensures that the transportation of the chelated resin will not be affected even if the top cover 5 and the stirring plate 15 are in the lifting and rotating process.

[0093] This design achieves rapid replacement of the chelating resin through the ingenious combination of the storage box 44 and the pumping mechanism, thereby greatly improving work efficiency.

[0094] In a further preferred embodiment of the present invention, heating blocks 50 are fixedly mounted on the side walls of the adsorption box 2 and the separation box 3, and corresponding temperature controllers are provided on the outer walls of the adsorption box 2 and the separation box 3.

[0095] In the present embodiment, heating blocks 50 are added to the side walls of the adsorption box 2 and the separation box 3, and this design is intended to optimize the temperature control during the treatment process. The heating block 50 can transfer heat to the interior of the adsorption box 2 and the separation box 3 to ensure that the internal environment reaches the required temperature conditions. In order to control the temperature more accurately, the outer walls of the adsorption box 2 and the separation box 3 are also equipped with a thermostat compatible with the heating block 50. During use, the thermostat monitors and adjusts the working state of the heating block 50 in real time according to the preset temperature parameters, thereby maintaining the constant temperature inside the adsorption box 2 and the separation box 3. In the adsorption stage, the appropriate temperature helps to improve the adsorption efficiency of the chelating resin for heavy metal ions; and in the separation stage, the appropriate temperature can promote the effective separation of heavy metal ions from the chelating resin.

[0096] It should be noted that the separation box 3 and the adsorption box 2 are also equipped with temperature sensors adapted to the temperature controller for monitoring the temperature of the liquid therein.

[0097] In a further preferred embodiment of the present invention, the bottom of the adsorption box 2 and the separation box 3 are both provided with drain pipes 51 for discharging the treated liquid in the adsorption box 2 and the separation box 3, respectively.

[0098] In this embodiment, drainage pipes 51 are cleverly arranged at the bottom of the adsorption box 2 and the separation box 3. The two drainage pipes are responsible for discharging the treated liquid in the adsorption box 2 and the separation box 3, respectively.

[0099] During use, when the silicon wafer and the chelating resin in the adsorption box 2 complete the adsorption reaction, the treated karst water will be smoothly discharged through the drainage pipe 51 at the bottom of the adsorption box 2. Similarly, in the separation box 3, the chelating resin after washing will release heavy metal ions to form a high-concentration heavy metal ion solution, which will also be discharged in time through the drainage pipe 51 at the bottom of the separation box 3 for recycling.

[0100] In a further preferred embodiment of the present invention, a dosing port 52 is provided on the top of the top cover 5 for adding agents into the adsorption box 2 to change the tunnel karst water environment in the adsorption box 2, such as adding an acid solution or an alkaline solution to adjust the pH value of the solution in the box. Whether to add agents depends on the type of heavy metals in the karst water.

[0101] It is worth noting that the circuits, electronic components and modules involved in the present invention are all existing technologies, which can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods. A controller is also provided in this scheme, and the controller is arranged on the device. When in use, each electrical device can be started and operated separately through the controller. The power connection method of each electrical device is an existing mature technology and a well-known technology to those skilled in the art, so no unnecessary elaboration is made here.

[0102] In summary, compared with the related art, the adsorption and separation device for heavy metal treatment of tunnel karst water proposed in the present invention adopts granular chelating resin as adsorbent, and realizes efficient adsorption of heavy metal ions by stirring on a stirring plate. Compared with the electromagnetic device, the present invention can treat more types of heavy metal ions and has better adsorption effect. The device is provided with a separation box and a regeneration mechanism, which restores the adsorption performance of the chelating resin by spraying and flushing liquid, reduces costs and improves resource utilization. The pretreatment mechanism filters and removes impurities through a double-layer filter screen to improve the adsorption effect. The lifting and rotating mechanism and the pumping mechanism make the operation more flexible and convenient, and improve the processing efficiency.

[0103] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0104] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. An adsorption separation device for heavy metal treatment of tunnel karst water, characterized in that: include: A base frame (1), on which an adsorption box (2), a separation box (3) and a waste box (4) are fixedly mounted, which are respectively used for adsorbing heavy metal ions in tunnel karst water, for separating heavy metals from chelate resins with heavy metal ions adsorbed on the surface, and for temporarily storing discarded chelate resins; The top of the adsorption box (2) is provided with a top cover (5), and an adsorption stirring mechanism is installed on the top cover (5) for adsorbing heavy metal ions in the tunnel karst water in the adsorption box (2) during the stirring process. The adsorption stirring mechanism comprises: a central axis tube (13) rotatably installed on the top cover (5), and two connecting tubes (14) connected to the central axis tube (13) are symmetrically installed on the central axis tube (13); stirring plates (15) are respectively fixedly installed at the bottom ends of the two connecting tubes (14), and the stirring plates (15) have The hollow chamber structure is used to contain granular chelate resin for adsorbing heavy metal ions, and the connecting pipe (14) is connected to the hollow chamber of the stirring plate (15), and the two sides of the stirring plate (15) are provided with a plurality of water inlet holes, and the diameter of the water inlet holes is smaller than the diameter of the granular chelate resin; a driving mechanism for providing the stirring plate (15) to rotate, and the driving mechanism is arranged on the bottom frame (1); and a connecting component, the connecting component is installed between the driving mechanism and the bottom end of the central axis tube (13), and is used for connecting the driving mechanism and the central axis tube (13); The driving mechanism comprises: a machine base (16) fixedly mounted on a base frame (1), a reduction motor (17) fixedly mounted on the machine base (16); a main gear (18) fixedly sleeved on an output shaft of the reduction motor (17); and two transmission mechanisms respectively mounted on the bottom of the adsorption box (2) and the separation box (3); The transmission mechanism comprises: a first rotating shaft (19) rotatably mounted on the bottom of the machine base (16), a transmission gear (20) being fixedly sleeved on the first rotating shaft (19), the transmission gear (20) being meshed with the main gear (18); a sprocket (21) fixedly sleeved on the bottom end of the first rotating shaft (19); a second rotating shaft (22) rotatably mounted on the bottom of the adsorption box (2) and / or the separation box (3), the top end of the second rotating shaft (22) extending into the adsorption box (2) and / or the separation box (3); a flywheel (23) fixedly sleeved on the bottom end of the second rotating shaft (22), a chain (24) being connected between the flywheel (23) and the sprocket (21); The connection assembly comprises: a square rod (25) arranged at the bottom end of the central axis tube (13) and formed integrally with the central axis tube (13); a square sleeve (26) sleeved on the square rod (25); an integrally formed connection shaft (27) is arranged at the bottom end of the square sleeve (26); a connection groove and an internal spline are provided at the bottom end of the connection shaft (27); an external spline is provided at the top end of the second rotating shaft (22) and meshes with the internal spline at the bottom end of the connection shaft (27); The connecting shaft (27) is provided with a discharge assembly for discharging the chelate resin waste in the stirring plate (15), and the discharge assembly comprises: a bracket (28) fixedly sleeved on the connecting shaft (27), the bracket (28) being used for auxiliary support of the two stirring plates (15); two clamping blocks (29) symmetrically fixed on the top of the bracket (28), the two clamping blocks (29) being respectively inserted into discharge openings opened at the bottoms of the two stirring plates (15), and the two discharge openings being respectively connected to the hollow chambers of the two stirring plates (15); a small electric telescopic rod (30) and a battery box fixedly installed in the square sleeve (26), the output rod of the electric telescopic rod (30) being fixedly connected to the bottom end of the square rod (25); wherein the square sleeve (26) is slidably connected to the square rod (25) in the vertical direction; The separation box (3) is provided with a regeneration mechanism for separating the chelating resin from the adsorbed heavy metal ions and regenerating the adsorption performance; The bottom of the waste box (4) is provided with a discharge port (45) for discharging the chelate resin waste in the waste box (4).

2. The adsorption separation device for heavy metal treatment of tunnel karst water according to claim 1, characterized in that: The connecting shaft (27) is fixedly sleeved with a spiral blade (31) for causing the liquid in the adsorption box (2) to surge upwards when rotating.

3. The adsorption separation device for heavy metal treatment of tunnel karst water according to claim 1, characterized in that: A heating block (50) is fixedly mounted on the side walls of the adsorption box (2) and the separation box (3), and a corresponding temperature controller is provided on the outer walls of the adsorption box (2) and the separation box (3).

4. The adsorption separation device for heavy metal treatment of tunnel karst water according to claim 1, characterized in that: The bottoms of the adsorption box (2) and the separation box (3) are both provided with drainage pipes (51) for discharging treated liquid in the adsorption box (2) and the separation box (3), respectively.

5. The adsorption separation device for heavy metal treatment of tunnel karst water according to claim 1, characterized in that: The top of the top cover (5) is provided with a drug adding port (52) for adding drugs into the adsorption box (2) to change the tunnel karst water environment in the adsorption box (2).

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