A device for extracting heavy metals from marine sediments

Abstract

The application discloses a kind of marine sediment heavy metal extraction devices, including extraction tank, grinding conveying mechanism and stirring mechanism, further include the top seat of movable installation in the top of extraction tank, and fixedly installed in the screening mechanism of grinding conveying mechanism bottom, grinding conveying mechanism fixedly installed in the top side of top seat, extraction tank is rotatably installed in the top of base, one side of base is fixedly installed with side box, drive mechanism is fixedly installed in the inside of side box and extends to the inside of lifting seat.The application is energized to run through drive mechanism, while driving extraction tank, stirring mechanism, grinding conveying mechanism, screening mechanism cooperative operation, realizes the grinding, screening, rotary stirring mixing of marine sediment, ensures that acid-dissolving solution and marine sediment are fully contacted and reacted, realizes that heavy metal in marine sediment is completely dissolved and extracted, improves marine sediment heavy metal extraction speed and effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heavy metal extraction, in particular to a marine sediment heavy metal extraction device. BACKGROUND

[0002] Marine sediments are complex geological materials formed by the joint action of river input, seawater dissolution, biological activity and other environmental factors. Marine sediments not only contain organic matter and mineral particles, but also contain a large amount of heavy metal elements. Marine sediments contain a variety of heavy metals, which come from marine pollution such as industrial wastewater, agricultural emissions and marine transportation. Due to their solubility and mobility, these heavy metals can penetrate into sediments, posing a serious threat to marine ecosystems. The quality of marine sediments directly determines the quality and safety of marine organisms. The increase of heavy metal content in marine sediments not only affects the health of marine ecosystems, but also may affect human health through the food chain. Therefore, it is necessary to detect the heavy metal content in marine sediments. When detecting the heavy metal content in marine sediments, a marine sediment heavy metal extraction device is needed to extract heavy metals from marine sediments.

[0003] For example, the Chinese patent with the publication number CN218506510U and the publication date of February 21, 2023 discloses a marine sediment heavy metal sample processing device, which includes a rack, a placing rack is arranged on the rack, a storage bottle is placed on the placing rack, an installation groove is arranged on the upper surface of the placing rack, the installation groove is used for placing the storage bottle, an oscillator is arranged on the rack, a processing area is arranged above the oscillator, a sliding rail is arranged on the rack, the placing rack is slidingly arranged on the sliding rail, so that the placing rack can be close to or away from the processing area, the placing rack includes a first fixed plate and a second fixed plate, openings are arranged on the first fixed plate and the second fixed plate, the openings are oppositely arranged, the openings on the first fixed plate and the second fixed plate are spliced to form the installation groove, the placing rack further includes a fixed block, the first fixed plate and the second fixed plate are slidingly arranged on the fixed block, and a sliding groove and two groups of air cylinders are arranged on the fixed block, the two groups of air cylinders drive the first fixed plate and the second fixed plate to slide in the sliding groove. The device has the following defects: due to the uneven granularity of marine sediments, the acid digestion rate is not uniform, which not only easily causes incomplete acid digestion of marine sediments, but also affects the extraction speed of marine sediment heavy metals. SUMMARY

[0004] The present application is to solve the above-mentioned problems of the prior art marine sediment heavy metal sample processing device, and provides a marine sediment heavy metal extraction device which is convenient to use and can improve the extraction speed and effect of marine sediment heavy metals.

[0005] In order to achieve the above object, the present application adopts the following technical scheme: the marine sediment heavy metal extraction device comprises an extraction tank, a grinding and conveying mechanism and a stirring mechanism, further comprises a top seat movably installed on the top of the extraction tank, a screening mechanism fixedly installed on the bottom of the grinding and conveying mechanism, and the stirring mechanism is rotatably installed on the bottom of the screening mechanism; the grinding and conveying mechanism is fixedly installed on one side of the top of the top seat; the extraction tank is rotatably installed on the top of the base; one side of the base is fixedly installed with a side box; one side of the inside of the side box is fixedly installed with a hydraulic rod; the top of the hydraulic rod is fixedly installed with a lifting seat; one side of the lifting seat is fixedly connected with one side of the top seat; the top seat is lifted and moved by the lifting seat through the operation of the hydraulic rod; the stirring mechanism is lifted and moved by the lifting seat, thereby controlling the discharge of solid objects; the inside of the side box is fixedly installed with a driving mechanism extending into the inside of the lifting seat; the extraction tank, the stirring mechanism, the grinding and conveying mechanism and the screening mechanism are synchronously operated by the driving mechanism; the grinding, screening and rotary stirring and mixing are completed by the cooperation of the extraction tank, the stirring mechanism, the grinding and conveying mechanism and the screening mechanism, so that the marine sediment is fully acid-digested with the acidic solution.

[0006] Preferably, the grinding and conveying mechanism comprises a feeding hopper fixedly installed on the top of the top seat; one side of the feeding hopper is fixedly installed with a feeding pipe; the inside of the feeding pipe is rotatably installed with a spiral conveying rod; the inside of the spiral conveying rod is throughly installed with a linkage mechanism; the inside of the feeding hopper is rotatably installed with a grinding roller; one end of the inside of the grinding roller is provided with a butt joint groove; one end of the grinding roller is fixedly installed with a belt pulley set; one side of the top of the feeding hopper is threadedly installed with a through screw rod; the bottom of the screw rod is rotatably installed with a valve disc; the valve disc is movably inserted at the connection position of the feeding pipe and the feeding hopper.

[0007] Preferably, the linkage mechanism comprises a transmission groove rod movably installed in the inside of the spiral conveying rod; the transmission groove rod is clamped with the inside of the spiral conveying rod; the transmission groove rod can be telescopically moved in the inside of the spiral conveying rod without affecting the rotation of the spiral conveying rod; the transmission groove rod is fixedly installed with a screw rod at one end; the outside of the screw rod is threadedly installed with a threaded disc; the threaded disc is rotatably installed at one end of the feeding pipe.

[0008] Preferably, the screening mechanism comprises an installation pipe fixedly installed at the bottom of the feeding pipe; one end of the installation pipe is fixedly installed with a screening pipe; the inside of the installation pipe is movably installed with a pressing seat; one end of the pressing seat is fixedly installed with a moving pipe; one end of the moving pipe is fixedly installed with a silk sleeve seat; the inside of the silk sleeve seat is throughly installed with a bidirectional screw rod; the bidirectional screw rod extends into the inside of the moving pipe; one end of the bidirectional screw rod is fixedly connected with one side of the bottom of the belt pulley set.

[0009] As preferred, the stirring mechanism comprises a protective cover rotatably mounted at the bottom of the mounting pipe, a double-shaft motor fixedly mounted at the top inside the protective cover, a cleaning rod rotatably mounted at the top of the protective cover, an output end of the double-shaft motor penetrating through the top of the protective cover and fixedly connected with the bottom of the cleaning rod, a horizontal adjusting assembly fixedly mounted at the output end of the bottom of the double-shaft motor, four stirring paddles fixedly mounted at the bottom of the horizontal adjusting assembly, a mounting rod fixedly mounted at the center of the bottom of the horizontal adjusting assembly, a floating solid-liquid separator movably sleeved with the mounting rod through a mounting slot, a flexible hose penetratingly mounted at the bottom of the floating solid-liquid separator and located inside the mounting rod, a sealing disc fixedly mounted at the bottom end of the mounting rod, and a pin hole formed at the bottom of the sealing disc.

[0010] As preferred, the horizontal adjusting assembly comprises a rotating disc fixedly mounted at the output end of the bottom of the double-shaft motor, equidistantly formed sliding grooves inside the rotating disc, and an installation rail fixedly mounted at the bottom of the rotating disc.

[0011] As preferred, the driving mechanism comprises a double-shaft driving assembly fixedly mounted at one side inside the side box, a spiral cam transmissionally mounted at one side of the double-shaft driving assembly, a double-bevel gear rod A and a transmission bevel gear rod meshingly connected at the other side of the double-shaft driving assembly, wherein the double-bevel gear rod A is located below the transmission bevel gear rod, a double-bevel gear rod B meshingly connected at the bottom end of the double-bevel gear rod A, a double-bevel gear rod C meshingly connected at one end of the double-bevel gear rod B, a bevel gear pin rod meshingly connected at one end of the double-bevel gear rod C, the top end of the bevel gear pin rod extending into the pin hole for clamping, a spline rod fixedly mounted at the top end of the transmission bevel gear rod, a bevel gear A sleeved with the spline rod at the outside thereof and mounted in the inner wall of the lifting seat through a bearing frame, a double-bevel gear rod D meshingly connected at one side of the bevel gear A, a bevel gear B meshingly connected at one end of the double-bevel gear rod D, and the bevel gear B sleeve-connected with one side of the belt pulley set.

[0012] As preferred, a solid discharge pipe extending out is fixedly mounted inside the base, the top of the solid discharge pipe is penetratingly connected with the bottom of the extraction tank, a collecting valve pipe is fixedly mounted at the other side of the base, and a connecting hose extending into the bevel gear pin rod is fixedly mounted at one end of the collecting valve pipe.

[0013] As preferred, a tooth ring is fixedly sleeved with the outside of the bottom of the extraction tank, and the back surface of the tooth ring is meshingly connected with the spiral cam.

[0014] Therefore, the application has the following beneficial effects: through the power-on operation of the driving mechanism, the extraction tank, the stirring mechanism, the grinding conveying mechanism and the screening mechanism are simultaneously driven to work cooperatively, the grinding, screening and rotary stirring and mixing of the marine sediments are realized, the sufficient contact and reaction between the acid dissolution solution and the marine sediments are ensured, and the problem of inconsistent acid digestion rate caused by uneven particle size of the marine sediments can be effectively solved; first, the marine sediments with uneven particle size are ground into uniform particles by the grinding conveying mechanism, so that the particle size of the ground marine sediments is uniform, then the ground marine sediments are further screened by the screening mechanism, and the marine sediments with uniform particle size are screened out, the marine sediments with uniform particle size can ensure the uniform acid digestion rate, the screened marine sediments enter the inside of the extraction tank and are mixed with the acid dissolution solution, then, through the combined action of the forward rotating extraction tank and the reverse rotating stirring mechanism, the acid dissolution solution and the sediments in the extraction tank are fully stirred and dissolved, so that the acid dissolution solution fully contacts and reacts with the sediments with uniform particle size, the complete acid digestion of the marine sediments is ensured, and thus the complete dissolution and extraction of the heavy metals in the marine sediments are realized, and the extraction speed and effect of the heavy metals in the marine sediments are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the structure of the application.

[0016] Figure 2 It is a front view of the structure of the application.

[0017] Figure 3 It is a front view of the structure of the application.

[0018] Figure 4 It is a front view of the structure of the application.

[0019] Figure 5 It is a front view of the structure of the application.

[0020] Figure 6 It is a front view of the structure of the application.

[0021] Figure 7 It is a front view of the structure of the application.

[0022] Figure 8 It is a front view of the structure of the application.

[0023] Figure 9 It is a front view of the structure of the application.

[0024] Figure 10 It is a front view of the structure of the application.

[0025] Figure 11Structure diagram of feeding mechanism of the application.

[0026] Figure 12 Structure diagram of feeding mechanism of the application.

[0027] Figure 13 Structure diagram of feeding mechanism of the application.

[0028] In the figure: 1, base; 101, solid discharge pipe; 102, collection valve pipe; 2, extraction tank; 201, tooth ring; 3, top seat; 4, grinding conveying mechanism; 401, feeding hopper; 402, conveying pipe; 403, grinding roller; 4031, butt joint groove; 404, spiral conveying rod; 405, belt pulley set; 406, threaded rod; 407, valve disc; 408, linkage mechanism; 4081, transmission groove rod; 4082, screw rod; 4083, threaded disc; 5, side box; 501, lifting seat; 502, hydraulic rod; 6, screening mechanism; 601, mounting pipe; 602, screening pipe; 603, extrusion seat; 604, moving pipe; 605, wire sleeve seat; 606, bidirectional screw rod; 7, stirring mechanism; 701, protective cover; 702, double-shaft motor; 703, cleaning rod; 704, horizontal adjustment assembly; 7041, turntable; 7042, sliding groove; 7043, sliding piece; 7044, mounting rail; 7045, telescopic rod; 705, stirring paddle; 706, mounting rod; 707, floating solid-liquid separator; 7071, telescopic hose; 708, sealing disc; 7081, pin hole; 8, driving mechanism; 801, double-shaft driving assembly; 802, bevel gear rod A; 803, bevel gear rod B; 804, bevel gear rod C; 805, bevel gear pin rod; 806, transmission bevel gear rod; 807, spline rod; 808, bevel gear A; 809, bevel gear rod D; 810, bevel gear B; 811, helical cam. DETAILED DESCRIPTION

[0029] The application will be further described below in conjunction with the drawings and specific embodiments.

[0030] Please refer to Figures 1-13The marine sediment heavy metal extraction device disclosed by the application comprises an extraction tank 2, a grinding and conveying mechanism 4, and a stirring mechanism 7, further comprises a top seat 3 movably installed on the top of the extraction tank 2, a screening mechanism 6 fixedly installed on the bottom of the grinding and conveying mechanism 4, and the stirring mechanism 7 is rotatably installed on the bottom of the screening mechanism 6, the grinding and conveying mechanism 4 is fixedly installed on one side of the top of the top seat 3, the extraction tank 2 is rotatably installed on the top of the base 1, one side of the base 1 is fixedly installed with a side box 5, one side in the side box 5 is fixedly installed with a hydraulic rod 502, the top of the hydraulic rod 502 is fixedly installed with a lifting seat 501, one side of the lifting seat 501 is fixedly connected with one side of the top seat 3, the top seat 3 is lifted and moved by the lifting seat 501 driven by the hydraulic rod 502, and the stirring mechanism 7 is lifted and moved by the top seat 3, so as to control the discharge of solid objects; the inside of the side box 5 is fixedly installed with a driving mechanism 8 extending into the inside of the lifting seat 501, the extraction tank 2, the stirring mechanism 7, the grinding and conveying mechanism 4, and the screening mechanism 6 are synchronously operated by the driving mechanism 8, the grinding, screening, and rotary stirring and mixing are completed by the cooperation of the extraction tank 2, the stirring mechanism 7, the grinding and conveying mechanism 4, and the screening mechanism 6, so that the marine sediment and the acid solution are fully acid-digested. It should be noted that one side of the top of the top seat 3 is installed with a liquid inlet, the acid-dissolving solution is added into the inside of the extraction tank 2 through the liquid inlet, the extraction tank 2, the stirring mechanism 7, the grinding and conveying mechanism 4, and the screening mechanism 6 are cooperatively operated by the driving mechanism 8, the marine sediment is ground by the grinding and conveying mechanism 4, the marine sediment with uniform granularity is screened by the screening mechanism 6 and then enters the extraction tank 2, and the acid-dissolving solution and the sediment in the extraction tank 2 are stirred and dissolved by the rotary extraction tank 2 and the rotary stirring mechanism 7, so that the marine sediment is completely acid-digested; the lifting seat 501 is lifted by the hydraulic rod 502, the stirring mechanism 7 is moved up and down, and the discharge of solid objects in the extraction tank 2 is controlled.

[0031] Please refer to Figures 6-9The grinding conveying mechanism 4 comprises a feeding hopper 401 fixedly installed on the top of the top base 3, one side of the feeding hopper 401 is fixedly installed with a feeding pipe 402, the inside of the feeding pipe 402 is rotatably installed with a spiral conveying rod 404, the inside of the spiral conveying rod 404 is penetratively installed with a linkage mechanism 408, the inside of the grinding roller 403 is rotatably installed with the feeding hopper 401, one end of the inside of the grinding roller 403 is provided with a butt joint groove 4031, one end of the grinding roller 403 is fixedly installed with a belt pulley set 405, one side of the top of the feeding hopper 401 is threadedly installed with a penetrative threaded rod 406, the bottom of the threaded rod 406 is rotatably installed with a valve disc 407, and the valve disc 407 is movably inserted at the connecting position of the feeding pipe 402 and the feeding hopper 401. It should be noted that the grinding conveying mechanism 4 is driven to operate by the driving mechanism 8, the marine sediments are put into the inside of the feeding hopper 401, the rotating grinding roller 403 grinds the marine sediments in the inside of the feeding hopper 401, after the grinding is completed, the rotating threaded rod 406 is used to ascend to drive the valve disc 407 to extend out of the connecting position of the feeding pipe 402 and the feeding hopper 401, so that the feeding pipe 402 and the feeding hopper 401 form a feeding channel, the linkage mechanism 408 is connected with the butt joint groove 4031, so that the spiral conveying rod 404 is linked with the grinding roller 403, the rotating grinding roller 403 drives the spiral conveying rod 404 to rotate, and the rotating spiral conveying rod 404 conveys the marine sediments in the inside of the feeding hopper 401 to the screening mechanism 6 for subsequent screening work.

[0032] Please refer to Figure 9 The linkage mechanism 408 comprises a transmission groove rod 4081 movably installed in the inside of the spiral conveying rod 404, the transmission groove rod 4081 is clamped with the inside of the spiral conveying rod 404, without affecting the telescopic movement of the transmission groove rod 4081 in the inside of the spiral conveying rod 404, meanwhile, the clamped transmission groove rod 4081 and the spiral conveying rod 404 are used to drive the spiral conveying rod 404 to rotate when the transmission groove rod 4081 rotates, one end of the transmission groove rod 4081 is fixedly installed with a screw rod 4082, the outside of the screw rod 4082 is threadedly installed with a threaded disc 4083, and the threaded disc 4083 is rotatably installed at one end of the feeding pipe 402. It should be noted that the rotating threaded disc 4083 drives the threadedly connected screw rod 4082 to move horizontally, the horizontally moving screw rod 4082 drives the transmission groove rod 4081 to move horizontally into the inside of the butt joint groove 4031 and is clamped with the butt joint groove 4031, the rotating grinding roller 403 drives the spiral conveying rod 404 to rotate through the cooperation of the transmission groove rod 4081 and the butt joint groove 4031, and the rotating spiral conveying rod 404 can convey the marine sediments into the installation pipe 601.

[0033] Please refer to Figures 6-8The screening mechanism 6 comprises a mounting pipe 601 fixedly installed at the bottom of the conveying pipe 402, one end of the mounting pipe 601 is fixedly installed with a screening pipe 602, the inside of the mounting pipe 601 is movably installed with an extrusion seat 603, one end of the extrusion seat 603 is fixedly installed with a moving pipe 604, one end of the moving pipe 604 is fixedly installed with a screw sleeve seat 605, the inside of the screw sleeve seat 605 is installed with a bidirectional screw rod 606, the bidirectional screw rod 606 extends to the inside of the moving pipe 604, and one end of the bidirectional screw rod 606 is fixedly connected with one side of the bottom of the belt pulley set 405. It should be noted that the grinding roller 403 is drivingly connected with the bidirectional screw rod 606 through the belt pulley set 405, the rotating grinding roller 403 drives the bidirectional screw rod 606 to rotate synchronously through the belt pulley set 405, the rotating bidirectional screw rod 606 drives the moving pipe 604 to move horizontally and reciprocally through the screw sleeve seat 605, the horizontally and reciprocally moving moving pipe 604 drives the extrusion seat 603 to move horizontally and reciprocally, the horizontally and reciprocally moving extrusion seat 603 conveys the marine sediments in the inside of the mounting pipe 601 to the screening pipe 602, and the marine sediments are conveyed to the inside of the extraction tank 2 after being filtered through the screening pipe 602 by extruding the marine sediments.

[0034] Please refer to Figures 10-11The stirring mechanism 7 comprises a protective cover 701 rotatably installed at the bottom of the mounting pipe 601, a double-shaft motor 702 fixedly installed at the top of the interior of the protective cover 701, a cleaning rod 703 rotatably installed at the top of the protective cover 701, an output end of the double-shaft motor 702 penetrating through the top of the protective cover 701 and fixedly connected with the bottom of the cleaning rod 703, a horizontal adjusting assembly 704 fixedly installed at the output end of the bottom of the double-shaft motor 702, four stirring paddles 705 fixedly installed at the bottom of the outer end of the horizontal adjusting assembly 704, an installation rod 706 fixedly installed at the center of the bottom of the horizontal adjusting assembly 704, a floating solid-liquid separator 707 movably sleeved with the installation rod 706 through an installation slot, a flexible hose 7071 penetratingly installed at the bottom of the floating solid-liquid separator 707 and located in the interior of the installation rod 706, a sealing disc 708 fixedly installed at the bottom end of the installation rod 706, and a pin hole 7081 formed at the bottom of the sealing disc 708. It should be noted that the double-shaft motor 702 is powered to drive the cleaning rod 703 and the horizontal adjusting assembly 704 to synchronously operate, the operating cleaning rod 703 can clean the marine deposits at the top of the protective cover 701, and the operating horizontal adjusting assembly 704 can adjust the horizontal positions of the four stirring paddles 705, so that the stirring paddles 705 can be horizontally adjusted during the rotary stirring, thereby facilitating the sufficient mixing of the solution and the marine deposits in the extraction tank 2; the liquid outlet at the bottom of the floating solid-liquid separator 707 is always kept below the liquid level, when the heavy metal solution after complete acidolysis is collected, the floating solid-liquid separator 707 transports the solution to sample through the flexible hose 7071 by the siphon principle, the flexible hose 7071 can be telescoped with the floating solid-liquid separator 707, and the sealing disc 708 can seal the bottom of the extraction tank 2.

[0035] Please refer to Figure 12 The horizontal adjusting assembly 704 comprises a rotating disc 7041 fixedly installed at the output end of the bottom of the double-shaft motor 702, equidistantly formed sliding grooves 7042 in the interior of the rotating disc 7041, an installation rail 7044 fixedly installed at the bottom of the rotating disc 7041, a telescopic rod 7045 movably installed in the interior of the installation rail 7044, a sliding piece 7043 fixedly installed at one end of the telescopic rod 7045 and movably connected into the sliding grooves 7042. It should be noted that the double-shaft motor 702 is powered to drive the rotating disc 7041 to rotate, the rotating rotating disc 7041 drives the telescopic rod 7045 to telescopically move in the installation rail 7044 by the cooperation of the sliding grooves 7042 and the sliding piece 7043, thereby facilitating the adjustment of the telescopic length of the telescopic rod 7045 and the adjustment of the horizontal positions of the four stirring paddles 705.

[0036] Please refer to Figure 13The driving mechanism 8 comprises a double-shaft driving assembly 801 fixedly installed on one side in the inside of the side box 5, one side of the double-shaft driving assembly 801 is drivingly installed with a spiral cam 811, the other side of the double-shaft driving assembly 801 is respectively meshingly connected with a double bevel gear rod A 802 and a transmission bevel gear rod 806, wherein the double bevel gear rod A 802 is located below the transmission bevel gear rod 806, the bottom end of the double bevel gear rod A 802 is meshingly connected with a double bevel gear rod B 803, one end of the double bevel gear rod B 803 is meshingly connected with a double bevel gear rod C 804, one end of the double bevel gear rod C 804 is meshingly connected with a bevel gear pin rod 805, the top end of the bevel gear pin rod 805 extends into the pin hole 7081 for clamping, the top end of the transmission bevel gear rod 806 is fixedly installed with a spline rod 807, the outer side of the spline rod 807 is sleeved with a bevel gear A 808, and the bevel gear A 808 is installed on the inner wall of the lifting seat 501 through a bearing frame, one side of the bevel gear A 808 is meshingly connected with a double bevel gear rod D 809, one end of the double bevel gear rod D 809 is meshingly connected with a bevel gear B 810, and one end of the bevel gear B 810 is clamped and connected with one side of the belt pulley set 405. It should be noted that the double-shaft driving assembly 801 is powered to drive the spiral cam 811, the double bevel gear rod A 802 and the transmission bevel gear rod 806 to rotate, the rotating transmission bevel gear rod 806 drives the bevel gear A 808 to rotate through the top spline rod 807, the rotating bevel gear A 808 drives the bevel gear B 810 to rotate through the meshingly connected double bevel gear rod D 809, the rotating bevel gear B 810 drives the clamped and connected belt pulley set 405 to rotate, and the rotating belt pulley set 405 simultaneously drives the grinding roller 403 and the bidirectional screw rod 606 to rotate to complete the grinding and screening work; the rotating double bevel gear rod A 802 drives the bevel gear pin rod 805 to rotate through the meshingly connected double bevel gear rod B 803 and double bevel gear rod C 804 at the bottom end, the rotating bevel gear pin rod 805 drives the mounting rod 706 at the top of the sealing disc 708 to rotate through the pin hole 7081, and the rotating mounting rod 706 drives the four stirring paddles 705 at the bottom of the horizontal adjusting assembly 704 to rotate; the rotating spiral cam 811 drives the extraction tank 2 to rotate through the meshingly connected gear ring 201, and the rotating extraction tank 2 rotates in the opposite direction of the four rotating stirring paddles 705, so that the acid dissolution solution and the marine sediments in the extraction tank 2 can be fully stirred and mixed, and the reaction speed of the acid dissolution solution and the marine sediments is improved.

[0037] Please refer to Figures 1-3The bottom 1 is internally fixedly installed with an extended solid discharge pipe 101, the top of the solid discharge pipe 101 is in through connection with the bottom of the extraction tank 2, the other side of the bottom 1 is fixedly installed with a collection valve pipe 102, one end of the collection valve pipe 102 is fixedly installed with a connecting hose extended into the inside of the bevel gear pin 805. It should be noted that the upward opening of the sealing disc 708 enables the reacted solid in the bottom of the extraction tank 2 to be collected through the solid discharge pipe 101, which facilitates the unified treatment of the reacted solid, avoids environmental pollution, and opens the collection valve pipe 102, so that the connecting hose and the flexible hose 7071 form a passage, the heavy metal solution extracted from the inside of the extraction tank 2 is siphoned through the floating solid-liquid separator 707 by using the siphon principle, the siphoned heavy metal solution is transported to the collection valve pipe 102 through the flexible hose 7071 and the connecting hose, and the heavy metal solution is sampled and collected through the collection valve pipe 102, so as to facilitate the heavy metal content inspection.

[0038] Please refer to Figures 1-3 The outside of the bottom of the extraction tank 2 is fixedly sleeved with a tooth ring 201, the back surface of the tooth ring 201 is in meshing connection with the spiral cam 811. It should be noted that the rotating spiral cam 811 drives the meshing connected tooth ring 201 to rotate, the rotating tooth ring 201 drives the extraction tank 2 to rotate, the rotating extraction tank 2 and the four rotating stirring paddles 705 form forward and reverse rotation, so as to fully disturb the mixed solution in the extraction tank 2 and accelerate the reaction rate of the mixed solution.

[0039] The above-described embodiments are only a preferred scheme of the present application, and do not limit the present application in any form, and other variants and modifications are possible without exceeding the technical scheme recorded in the claims.

Claims

1. A marine sediment heavy metal extraction apparatus comprising an extraction tank (2), a grinding and conveying mechanism (4) and a stirring mechanism (7), characterized in that: Also include the activity is installed in the top of the extraction tank (2) top seat (3), and fixedly installed in the grinding conveying mechanism (4) bottom screening mechanism (6), and stirring mechanism (7) is rotatably mounted in the bottom of the screening mechanism (6), the grinding conveying mechanism (4) is fixedly installed in the top of the top seat (3) side, the extraction tank (2) is rotatably mounted on the top of the base (1), one side of the base (1) is fixedly installed with side box (5), one side of the inside of the side box (5) is fixedly installed with hydraulic rod (502), the top of the hydraulic rod (502) is fixedly installed with lifting seat (501), one side of the lifting seat (501) is fixedly connected with one side of the top seat (3), the lifting seat (501) is driven by the hydraulic rod (502) to drive the top seat (3) to move up and down, and the top seat (3) moves up and down to drive the stirring mechanism (7) to move up and down, and the discharge of solid material is controlled; The inside of the side box (5) is fixedly installed with a driving mechanism (8) extending to the inside of the lifting seat (501), the driving mechanism (8) drives the extraction tank (2), the stirring mechanism (7), the grinding conveying mechanism (4), the screening mechanism (6) to operate synchronously, and the grinding, screening, rotary stirring mixing is completed by the cooperation of the extraction tank (2), the stirring mechanism (7), the grinding conveying mechanism (4) and the screening mechanism (6), so that the marine sediments are fully acid digested with the acid solution; The grinding conveying mechanism (4) includes a feed hopper (401) fixedly installed on the top of the top seat (3), one side of the feed hopper (401) is fixedly installed with a feed pipe (402), the inside of the feed pipe (402) is rotatably installed with a spiral conveying rod (404), the inside of the spiral conveying rod (404) is installed with a linkage mechanism (408), the inside of the feed hopper (401) is rotatably installed with a grinding roller (403), one end of the inside of the grinding roller (403) is provided with a butt joint groove (4031), one end of the grinding roller (403) is fixedly installed with a belt pulley set (405), one side of the top of the feed hopper (401) is threadedly installed with a threaded rod (406) extending through, the bottom of the threaded rod (406) is rotatably installed with a valve disc (407), the valve disc (407) is movably inserted in the connecting position of the feed pipe (402) and the feed hopper (401); The screening mechanism (6) includes a mounting pipe (601) fixedly installed on the bottom of the feed pipe (402), one end of the mounting pipe (601) is fixedly installed with a screening pipe (602), the inside of the mounting pipe (601) is movably installed with a pressing seat (603), one end of the pressing seat (603) is fixedly installed with a moving pipe (604), one end of the moving pipe (604) is fixedly installed with a silk sleeve seat (605), the inside of the silk sleeve seat (605) is installed with a bidirectional screw rod (606) extending through, and the bidirectional screw rod (606) extends to the inside of the moving pipe (604), one end of the bidirectional screw rod (606) is fixedly connected with one side of the bottom of the belt pulley set (405); The stirring mechanism (7) comprises a protective cover (701) rotatably installed at the bottom of the mounting pipe (601), a double-shaft motor (702) fixedly installed at the top of the interior of the protective cover (701), a cleaning rod (703) rotatably installed at the top of the protective cover (701), an output end of the top of the double-shaft motor (702) penetrating through the top of the protective cover (701), the output end of the top of the double-shaft motor (702) being fixedly connected with the bottom of the cleaning rod (703), a horizontal adjusting assembly (704) fixedly installed at the output end of the bottom of the double-shaft motor (702), four stirring paddles (705) fixedly installed at the outer end of the bottom of the horizontal adjusting assembly (704), an installation rod (706) fixedly installed at the center of the bottom of the horizontal adjusting assembly (704), a floating solid-liquid separator (707) movably sleeved with the installation rod (706) through an installation slot, a flexible hose (7071) penetratingly installed at the bottom of the floating solid-liquid separator (707) and located in the interior of the installation rod (706), and a sealing disc (708) fixedly installed at the bottom end of the installation rod (706).

2. A marine sediment heavy metal extraction device according to claim 1, wherein, The linkage mechanism (408) comprises a transmission groove rod (4081) movably installed in the interior of the screw conveying rod (404) and clamped with the interior of the screw conveying rod (404), which does not affect the telescopic movement of the transmission groove rod (4081) in the interior of the screw conveying rod (404), and meanwhile, by meansing the clamped transmission groove rod (4081) and the screw conveying rod (404), the screw conveying rod (404) is driven to rotate when the transmission groove rod (4081) rotates, one end of the transmission groove rod (4081) is fixedly installed with a screw rod (4082), the outer side of the screw rod (4082) is screw-mounted with a threaded disc (4083), and the threaded disc (4083) is rotatably installed at one end of the material conveying pipe (402).

3. A marine sediment heavy metal extraction device according to claim 1, wherein, The horizontal adjusting assembly (704) comprises a rotating disc (7041) fixedly installed at the output end of the bottom of the double-shaft motor (702), equidistantly provided with a sliding groove (7042) in the interior of the rotating disc (7041), fixedly installed with an installation rail (7044) at the bottom of the rotating disc (7041), movably installed with a telescopic rod (7045) in the interior of the installation rail (7044), fixedly installed with a sliding piece (7043) at one end of the telescopic rod (7045), and the sliding piece (7043) extends to be movably connected in the interior of the sliding groove (7042).

4. The marine sediment heavy metal extraction device of claim 1, wherein, The driving mechanism (8) includes a double-shaft driving assembly (801) fixedly installed on one side of the inside of the side box (5), one side of the double-shaft driving assembly (801) is drivingly installed with a spiral cam (811), the other side of the double-shaft driving assembly (801) is respectively meshedly connected with a double bevel gear rod A (802) and a transmission bevel gear rod (806), wherein the double bevel gear rod A (802) is located below the transmission bevel gear rod (806), the bottom end of the double bevel gear rod A (802) is meshedly connected with a double bevel gear rod B (803), one end of the double bevel gear rod B (803) is meshedly connected with a double bevel gear rod C (804), one end of the double bevel gear rod C (804) is meshedly connected with a bevel gear pin rod (805), the top end of the bevel gear pin rod (805) extends into the pin hole (7081) and is clamped, the top end of the transmission bevel gear rod (806) is fixedly installed with a spline rod (807), the outer side of the spline rod (807) is sleeved with a bevel gear A (808), and the bevel gear A (808) is installed on the inner wall of the lifting seat (501) through a bearing frame, one side of the bevel gear A (808) is meshedly connected with a double bevel gear rod D (809), one end of the double bevel gear rod D (809) is meshedly connected with a bevel gear B (810), and one end of the bevel gear B (810) is clamped and connected with one side of the belt pulley set (405).

5. The marine sediment heavy metal extraction device of claim 1, wherein, The inside of the base (1) is fixedly installed with an extended solid discharge pipe (101), the top of the solid discharge pipe (101) is in through connection with the bottom of the extraction tank (2), the other side of the base (1) is fixedly installed with a collection valve pipe (102), one end of the collection valve pipe (102) is fixedly installed with a connecting hose extending into the bevel gear pin rod (805).

6. A marine sediment heavy metal extraction device according to claim 5, wherein, The outside of the bottom of the extraction tank (2) is fixedly sleeved with a gear ring (201), the back surface of the gear ring (201) is meshedly connected with the spiral cam (811). The outside of the bottom of the extraction tank (2) is fixedly sleeved with a gear ring (201), the back surface of the gear ring (201) is meshedly connected with the spiral cam (811).

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