An apparatus and method for removing heavy metals using biochar

Abstract

The present application belongs to the technical field of heavy metal treatment, and in particular to a device and method for removing heavy metals using biochar, aiming at the problem that the existing device for removing heavy metals using biochar cannot adjust the amount of biochar according to the content of heavy metals. The present application proposes the following solution, which comprises a water storage cylinder, a joint pipe, an upper closed frame fixedly connected to the outer part of the joint pipe, a lower closed cylinder connected to the bottom of the upper closed frame through a flange, and two water quality detection probes arranged symmetrically in the inner wall of the water storage cylinder. The device and method for removing heavy metals using biochar can adjust the amount of biochar blocks used for adsorption treatment according to the content of heavy metals in the water to be treated, thereby ensuring that the device always has good treatment effect on heavy metals in water and improving the versatility of the device.

Description

Technical Field

[0001] This invention relates to the field of heavy metal treatment technology, and in particular to an apparatus and method for removing heavy metals using biochar. Background Technology

[0002] Biochar is a carbon-rich solid material produced by the high-temperature pyrolysis of organic waste such as biomass, wood, crop straw, and animal manure under anaerobic or oxygen-limited conditions.

[0003] Heavy metals can interact strongly with proteins and enzymes in the human body, causing them to lose their activity. They may also accumulate in certain organs of the body, causing chronic poisoning.

[0004] The amount of biochar loaded in existing biochar removal devices is often fixed, and it is impossible to adjust the amount of biochar in the device according to the concentration of heavy metals in the water flow. This results in a reduced treatment effect of the device on water flows with high heavy metal concentrations and poor versatility. Summary of the Invention

[0005] This invention discloses an apparatus and method for removing heavy metals using biochar, aiming to solve the technical problem in the prior art that existing biochar devices for removing heavy metals cannot adjust the amount of biochar used according to the heavy metal content.

[0006] This invention proposes a device for removing heavy metals using biochar, comprising:

[0007] Water storage tank;

[0008] The connecting pipe has its inner wall inserted into the outside of the water storage tank, and an upper sealing frame is fixedly connected to the outside of the connecting pipe. The bottom of the upper sealing frame is connected to a lower sealing cylinder through a flange.

[0009] Two water quality testing probes are provided. The inner wall of the water storage tank has two symmetrical fine holes, and the inner walls of the two fine holes are respectively fixedly connected to the outside of the two water quality testing probes.

[0010] Multiple biochar blocks are located within an upper closed frame and a lower closed cylinder, and all of the biochar blocks are located on the same axis.

[0011] An adaptive processing module is located inside the upper closed frame and the lower closed cylinder, below the water storage cylinder. The adaptive processing module is used to accommodate and fix the increase or decrease in the number of biochar blocks, while guiding the water flow.

[0012] A quick-connect module is located outside the connecting pipe and below the water storage cylinder. The quick-connect module is used to connect the connecting pipe, the upper sealing frame, and the lower sealing cylinder to the water storage cylinder.

[0013] In a preferred embodiment, the adaptive processing module includes:

[0014] Two fixing rings are attached to each other on their adjacent sides. The outer sides of the fixing rings are slidably connected to the inner wall of the connecting pipe. A filter disc is fixedly connected to the inner wall of each fixing ring. A stabilizing ring is fixedly connected to the inner wall of the connecting pipe. A spring is fixedly connected to the upper side of the stabilizing ring. The end of the spring away from the stabilizing ring contacts the bottom of the upper fixing ring. The bottom of the water storage tank contacts the upper side of the uppermost fixing ring.

[0015] A connecting ring is located outside the connecting tube. The connecting tube has a threaded groove on its outside. The inner wall of the connecting ring is rotatably connected to the threaded groove through an external thread. An upper mounting ring is fixedly connected to the bottom of the connecting ring, and a lower mounting ring is provided below the upper mounting ring. Two symmetrical bosses are fixedly connected to the outside of both the upper and lower mounting rings. Each boss has a slot. A round rod and a lead rod are respectively provided in the two slots on the same side.

[0016] In a preferred embodiment, the adaptive processing module further includes:

[0017] Multiple receiving boxes are provided, and the multiple receiving boxes are distributed at equal intervals. An insertion ring is fixedly connected to the upper side of each receiving box. Two symmetrical rubber rings are provided on the outside of each insertion ring. An annular frame is fixedly connected to the bottom of each receiving box. Multiple circumferentially distributed flow holes are opened on the upper side and bottom of each receiving box.

[0018] Multiple nonwoven fabrics, the outer surfaces of which are in contact with the inner wall of the receiving box on the same side, and the inner walls of which are in contact with the outer surfaces of the biochar blocks on the same side.

[0019] In a preferred embodiment, the adaptive processing module further includes:

[0020] The positioning ring has its bottom fixedly connected to the upper side of the lower mounting ring, its outer side inserted into the inner wall of the lowermost annular frame, its outer side inserted into the inner wall of the uppermost insertion ring, and the outer side of the adjacent insertion rings in the middle inserted into the inner wall of the annular frame.

[0021] In a preferred embodiment, the adaptive processing module further includes:

[0022] The knob is located outside the lead screw. The upper side of the knob is movably connected to the bottom of the boss on the same side. An outer ring is slidably connected to the outside of the lead screw. The bottom of the outer ring is fixedly connected to the upper side of the boss. Four circumferentially distributed slots are opened on the outside of the outer ring, and ball bearings are slidably connected in each slot.

[0023] Multiple grooves are provided on the lead screw and are distributed equidistantly around the circumference. The outer surface of the ball is engaged with the inner wall of the groove.

[0024] In a preferred embodiment, the adaptive processing module further includes:

[0025] The movable ring has its inner wall slidably connected to the outer wall of the outer ring. The inner wall of the movable ring has an annular conical groove, and the inner wall of the annular conical groove is in contact with the outer wall of the ball.

[0026] The constraint frame has its inner wall slidably connected to the outside of the movable ring, and its bottom is fixedly connected to the upper side of the boss. The constraint frame has two symmetrical sliding grooves, and each groove has a sliding block connected to it. The blocks are fixedly connected to the side opposite to the movable ring.

[0027] Spring 2 is located outside the outer ring. One end of spring 2 is fixedly connected to the upper side of the boss, and the other end is fixedly connected to the bottom of the movable ring.

[0028] In a preferred embodiment, the fast connection module includes:

[0029] A sealing ring is located outside the water storage tank. The upper side of the sealing ring is fixedly connected to the outside of the water storage tank, and the upper side of the connecting pipe is in contact with the bottom of the sealing ring.

[0030] Two receiving cylinders are equidistantly distributed around the circumference. The upper side of each receiving cylinder is fixedly connected to the outside of the water storage cylinder. The bottom inner wall of each receiving cylinder is slidably connected to a first inclined block. The upper side of each first inclined block is provided with a second inclined block. The second inclined block and the first inclined block are symmetrical to each other. The inner wall of each receiving cylinder is provided with a slide rail. The outside of each second inclined block is fixedly connected to a protrusion. The outside of the protrusion is slidably connected to the inner wall of the slide rail.

[0031] The lever is fixedly connected to one side of the inclined block opposite to the lever. The outer surface of the receiving cylinder is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is slidably connected to the outer surface of the lever.

[0032] In a preferred embodiment, the fast connection module further includes:

[0033] Two pins are located inside two receiving cylinders. The upper side of each pin is fixedly connected to the outside of the water storage cylinder. A lower pressure plate is slidably connected to the outside of each pin. Two symmetrical rectangular grooves are opened on the inner wall of each receiving cylinder. The inner wall of each rectangular groove is slidably connected to the outside of the lower pressure plate.

[0034] In a preferred embodiment, the fast connection module further includes:

[0035] Two connecting plates are located outside the two pins respectively. Each connecting plate has a circular groove, and the inner wall of the circular groove is inserted into the outside of the pin on the same side. The bottom of the lower pressure plate is attached to the upper side of the connecting plate. The connecting plates are fixedly connected to the opposite side of the outer side of the connecting tube on the same side.

[0036] Two L-shaped grooves are located on the same side of the receiving cylinder, and the inner wall of the receiving cylinder is slidably connected to the outside of the connecting plate.

[0037] A method for removing heavy metals using biochar, employing an apparatus for removing heavy metals using biochar as described above, includes the following steps:

[0038] Step 1: After assembling the upper closed frame and lower closed cylinder containing biochar blocks, fix the quick-connect module onto the water storage tank.

[0039] Step 2: Water containing heavy metals is transported into a storage tank and stored there. The water quality testing probe will test the water quality and assess the heavy metal content.

[0040] Step 3: When the water in the storage tank flows through the biochar block, the heavy metals in it will be adsorbed by the biochar block, and the remaining water will flow out from the bottom of the lower closed cylinder.

[0041] Step 4: When the heavy metal content in the water in the storage tank exceeds the processing limit of the biochar blocks in the device, after the water in the storage tank has completely flowed out, separate the lower closed cylinder from the upper closed frame, use the adaptive processing module to load more biochar blocks, and then repeat the above steps.

[0042] As can be seen from the above, the device for removing heavy metals using biochar provided by the present invention allows the device to adjust the amount of biochar blocks used for adsorption treatment according to the heavy metal content in the water to be treated, thereby ensuring that the device always has a good treatment effect on heavy metals in the water and improving the versatility of the device. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of a device for removing heavy metals using biochar, as proposed in this invention.

[0044] Figure 2 This is a cross-sectional schematic diagram of a device for removing heavy metals using biochar, as proposed in this invention.

[0045] Figure 3 This is a schematic diagram of the adaptive processing module structure of a device for removing heavy metals using biochar proposed in this invention.

[0046] Figure 4This is a schematic diagram of the upper closed frame structure of a device for removing heavy metals using biochar proposed in this invention.

[0047] Figure 5 This is a schematic diagram of the upper and lower mounting rings of the device for removing heavy metals using biochar proposed in this invention.

[0048] Figure 6 This is a schematic diagram of the moving ring structure of a device for removing heavy metals using biochar, as proposed in this invention.

[0049] Figure 7 This is a schematic diagram of the container structure of a device for removing heavy metals using biochar, as proposed in this invention.

[0050] Figure 8 This is a schematic diagram of the quick connection module structure of a device for removing heavy metals using biochar proposed in this invention;

[0051] Figure 9 This is a schematic diagram of the container structure of a device for removing heavy metals using biochar, as proposed in this invention.

[0052] In the diagram: 1. Water storage tank; 2. Connecting pipe; 3. Upper sealing frame; 4. Lower sealing cylinder; 5. Adaptive processing module; 501. Fixing ring; 502. Upper mounting ring; 503. Receiving box; 504. Connecting ring; 505. Stabilizing ring; 506. Spring 1; 507. Insertion ring; 508. Flow hole; 509. Lower mounting ring; 510. Boss; 511. Round rod; 512. Lead screw; 513. Positioning ring; 514. Knob; 515. Outer ring; 516. Groove; 517. Ball bearing; 518. Moving ring 519. Annular conical groove; 520. Constraint frame; 521. Toggle block; 522. Spring II; 523. Rubber ring; 524. Annular frame; 525. Non-woven fabric; 6. Quick connection module; 601. Sealing ring; 602. Receiving cylinder; 603. Inclined block I; 604. Inclined block II; 605. Toggle rod; 606. Arc groove; 607. L-shaped groove; 608. Connecting plate; 609. Pin; 610. Spring III; 611. Lower pressure plate; 612. Rectangular groove; 7. Water quality detection probe; 8. Biochar block. Detailed Implementation

[0053] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0054] The device for removing heavy metals using biochar disclosed in this invention is mainly applicable to scenarios where existing biochar removal devices cannot adjust the amount of biochar used based on the heavy metal content.

[0055] Reference Figures 1-9 A device for removing heavy metals using biochar, comprising:

[0056] Water storage tank 1;

[0057] Connecting pipe 2, the inner wall of connecting pipe 2 is inserted into the outside of water storage tank 1, and the outside of connecting pipe 2 is connected to upper sealing frame 3 by bolts, and the bottom of upper sealing frame 3 is connected to lower sealing cylinder 4 by flange.

[0058] Two water quality testing probes 7 are provided. The inner wall of the water storage tank 1 has two symmetrical fine holes. The inner walls of the two fine holes are respectively connected to the outside of the two water quality testing probes 7 by bolts.

[0059] Multiple biochar blocks 8 are located inside the upper closed frame 3 and the lower closed cylinder 4, and all multiple biochar blocks 8 are located on the same axis.

[0060] The adaptive processing module 5 is located inside the upper closed frame 3 and the lower closed cylinder 4, below the water storage cylinder 1. The adaptive processing module 5 is used to accommodate and fix the increase or decrease in the number of biochar blocks 8, and at the same time guide the water flow.

[0061] Quick-connect module 6 is located outside the connecting pipe 2 and below the water storage tank 1. Quick-connect module 6 is used to connect the connecting pipe 2, the upper sealing frame 3 and the lower sealing cylinder 4 as a whole to the water storage tank 1.

[0062] Specifically, the device utilizes an adaptive processing module 5 to adjust the amount of biochar block 8 used for adsorption treatment based on the heavy metal content in the water to be treated, thereby ensuring that the device always has a good treatment effect on heavy metals in the water and improving the versatility of the device.

[0063] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 In a preferred embodiment, the adaptive processing module 5 includes:

[0064] Two fixing rings 501 are attached to each other on their adjacent sides. The outer side of each fixing ring 501 is slidably connected to the inner wall of the connecting pipe 2. The inner wall of each fixing ring 501 is connected to a filter disc by bolts. The inner wall of the connecting pipe 2 is connected to a stabilizing ring 505 by bolts. A spring 506 is connected to the upper side of the stabilizing ring 505 by bolts. The end of the spring 506 away from the stabilizing ring 505 is in contact with the bottom of the upper fixing ring 501. The bottom of the water storage tank 1 is in contact with the upper side of the uppermost fixing ring 501.

[0065] A connecting ring 504 is located outside the connecting tube 2. The connecting tube 2 has a threaded groove on its outside. The inner wall of the connecting ring 504 is rotatably connected to the threaded groove through an external thread. The bottom of the connecting ring 504 is bolted to an upper mounting ring 502. A lower mounting ring 509 is provided below the upper mounting ring 502. The exterior of both the upper mounting ring 502 and the lower mounting ring 509 are bolted to two symmetrical bosses 510. Each boss 510 has a slot. A round rod 511 and a lead rod 512 are respectively provided in the two slots on the same side.

[0066] In a preferred embodiment, the adaptive processing module 5 further includes:

[0067] Multiple receiving boxes 503 are equidistantly distributed. Each receiving box 503 has an insertion ring 507 bolted to its upper side. Each insertion ring 507 has two symmetrical rubber rings 523 on its outer side. Each receiving box 503 has an annular frame 524 bolted to its bottom. Multiple circumferentially equidistant flow holes 508 are provided on the upper side and bottom of each receiving box 503.

[0068] Multiple nonwoven fabrics 525, the exterior of which are in contact with the inner wall of the receiving box 503 on the same side, and the inner wall of which are in contact with the exterior of the biochar block 8 on the same side.

[0069] In a preferred embodiment, the adaptive processing module 5 further includes:

[0070] The bottom of the positioning ring 513 is connected to the upper side of the lower mounting ring 509 by bolts. The outside of the positioning ring 513 is inserted into the inner wall of the lowermost annular frame 524. The outside of the uppermost insertion ring 507 is inserted into the inner wall of the upper mounting ring 502. The outside of the adjacent insertion rings 507 in the middle is also inserted into the inner wall of the annular frame 524.

[0071] In a preferred embodiment, the adaptive processing module 5 further includes:

[0072] Knob 514 is located outside the lead screw 512. The upper side of the knob 514 is rotatably connected to the bottom of the boss 510 on the same side via a bearing. An outer ring 515 is slidably connected to the outside of the lead screw 512. The bottom of the outer ring 515 is connected to the upper side of the boss 510 via bolts. The outer ring 515 has four circumferentially evenly distributed slots on its outer side, and each slot is slidably connected with a ball 517.

[0073] Multiple grooves 516 are provided on the lead screw 512 and are distributed equidistantly around the circumference. The outer side of the ball 517 is engaged with the inner wall of the groove 516.

[0074] In a preferred embodiment, the adaptive processing module 5 further includes:

[0075] The movable ring 518 has its inner wall slidably connected to the outer wall of the outer ring 515. The inner wall of the movable ring 518 is provided with an annular conical groove 519, and the inner wall of the annular conical groove 519 is in contact with the outer wall of the ball 517.

[0076] The constraint frame 520 has its inner wall slidably connected to the outer side of the movable ring 518. The bottom of the constraint frame 520 is connected to the upper side of the boss 510 by bolts. The constraint frame 520 has two symmetrical sliding grooves, and each sliding groove has a sliding block 521. The side of the sliding block 521 opposite to the movable ring 518 is connected by bolts.

[0077] Spring 522 is located outside the outer ring 515. One end of spring 522 is bolted to the upper side of the boss 510, and the other end is bolted to the bottom of the movable ring 518.

[0078] In specific application scenarios, the adaptive processing module 5 is mainly used in the adaptive processing stage of the adaptive processing process. That is, the adaptive processing module 5 can pre-treat the water using the fixed ring 501 and the filter plate to separate particulate impurities in the water flow, so as to avoid clogging in the micropores of the biochar block 8 and affecting the heavy metal adsorption capacity of the biochar block 8, and to ensure the smooth flow of water. The multi-stage series of container box 503, insertion ring 507, flow hole 508, rubber ring 523 and annular frame 524 form an independent processing unit with the biochar block 8, which quantifies the adsorption capacity of the biochar block 8, so that the device can treat water with different contents of heavy metal more accurately and avoid waste of biochar block 8. The upper mounting ring 502, lower mounting ring 509 and screw 512 can quickly complete the addition and removal of the container box 503, thereby reducing the disassembly and assembly time of the device and ensuring the smoothness of the heavy metal adsorption treatment process.

[0079] Reference Figure 8 and Figure 9 In a preferred embodiment, the quick connection module 6 includes:

[0080] The sealing ring 601 is located outside the water storage tank 1. The upper side of the sealing ring 601 is connected to the outside of the water storage tank 1 by bolts, and the upper side of the connecting pipe 2 is in contact with the bottom of the sealing ring 601.

[0081] Two receiving cylinders 602 are equidistantly distributed around the circumference. The upper side of each receiving cylinder 602 is bolted to the outside of the water storage cylinder 1. The bottom inner wall of each receiving cylinder 602 is slidably connected to a first inclined block 603. The upper side of each first inclined block 603 is provided with a second inclined block 604. The second inclined block 604 is symmetrical to the first inclined block 603. The inner wall of each receiving cylinder 602 is provided with a slide rail. The outside of each second inclined block 604 is bolted to a protrusion. The outside of the protrusion is slidably connected to the inner wall of the slide rail.

[0082] The lever 605 and the inclined block 603 are connected by bolts on the opposite side. The outer side of the receiving cylinder 602 is provided with arc-shaped grooves 606, and the inner wall of the arc-shaped grooves 606 is slidably connected to the outer side of the lever 605.

[0083] In a preferred embodiment, the quick connection module 6 further includes:

[0084] Two pins 609 are located inside two receiving cylinders 602. The upper side of each pin 609 is bolted to the outside of the water storage cylinder 1. A lower pressure plate 611 is slidably connected to the outside of each pin 609. Two symmetrical rectangular grooves 612 are opened on the inner wall of each receiving cylinder 602. The inner wall of each rectangular groove 612 is slidably connected to the outside of the lower pressure plate 611. The upper side of each pin 609 is bolted to the outside of the water storage cylinder 1.

[0085] In a preferred embodiment, the quick connection module 6 further includes:

[0086] Two connecting plates 608 are located outside the two pins 609 respectively. Each connecting plate 608 has a circular groove, and the inner wall of the circular groove is inserted into the outside of the pin 609 on the same side. The bottom of the lower pressure plate 611 is attached to the upper side of the connecting plate 608. The connecting plates 608 are connected to the opposite side of the outer side of the connecting tube 2 on the same side by bolts.

[0087] Two L-shaped grooves 607 are located on the same side of the receiving cylinder 602, and the inner wall of the receiving cylinder 602 is slidably connected to the outside of the connecting plate 608.

[0088] In specific application scenarios, the quick connection module 6 is mainly used for the quick connection link in the quick connection process. That is, the quick connection module 6 can quickly and conveniently lock the connecting plate 608 using inclined block 1 603, inclined block 2 604 and pin 609, so that the connecting pipe 2 connected to the connecting plate 608 can be stably connected to the water storage tank 1. By locking the connecting plate 608 with pin 609, the overall displacement of the connecting pipe 2, upper closed frame 3 and lower closed cylinder 4 under the influence of external forces is reduced, ensuring the smooth and stable water supply of the device and promoting the continuous operation of the heavy metal treatment process of the device.

[0089] A method for removing heavy metals using biochar, employing an apparatus for removing heavy metals using biochar as described above, includes the following steps:

[0090] Step 1: After assembling the upper closed frame 3 and lower closed cylinder 4 containing biochar blocks 8, fix the quick-connect module 6 onto the water storage tank 1. (When fixing the entire assembly of the connecting pipe 2, upper closed frame 3, and lower closed cylinder 4 onto the water storage tank 1, insert the connecting pipe 2 into the outside of the water storage tank 1, and rotate it at a certain angle so that the connecting plate 608 can enter the L-shaped groove 607. At this time, the inclined surfaces of inclined block 1 603 and inclined block 2 604 are in contact, and the bottom of the connecting plate 608 is in contact with inclined block 2.) When the upper side of 604 is in contact with the rotating lever 605, the lever 605 rotates 180 degrees on the receiving cylinder 602, causing the inclined surface of inclined block 1 603 to push inclined block 2 604 upward during rotation, until inclined block 1 603 and inclined block 2 604 are symmetrical. The raised inclined block 2 604 pushes the connecting plate 608 upward, causing the connecting plate 608 to push the lower pressure plate 611 to rise against the elastic force of spring 3 610, so that the pin 609 is inserted into the connecting plate 608 and no longer moves.

[0091] Step 2: Water containing heavy metals is transported into water storage tank 1 and stored in water storage tank 1. Water quality detection probe 7 will perform water quality detection and evaluate the heavy metal content in the water.

[0092] Step 3: When the water in the water storage tank 1 flows through the biochar block 8, the heavy metals in it will be adsorbed by the biochar block 8, and the remaining water will flow out from the bottom of the lower closed tank 4.

[0093] Step 4: When the heavy metal content in the water in the storage tank 1 exceeds the processing limit of the biochar blocks 8 in the device, after the water in the storage tank 1 has completely flowed out, separate the lower closed cylinder 4 from the upper closed frame 3. After using the adaptive processing module 5 to load more biochar blocks 8, repeat the above steps. (When the water quality detection probe 7 detects that the heavy metal content in the storage tank 1 is too high for the biochar blocks 8 in the device to process completely, after the water in the storage tank 1 is drained, remove the entire assembly of the connecting pipe 2, upper closed frame 3, and lower closed cylinder 4 from the storage tank 1. Separate the lower closed cylinder 4 from the upper closed frame 3. Rotate the connecting ring 504 to disengage it from the connecting pipe 2. Remove the upper mounting ring 502 and lower mounting ring 509 and their clamping receiving box 503 together. Press down the lever 521 to make the movable ring 518 slide down against the elastic force of the spring 522, so that the conical inner wall in the annular conical groove 519 no longer presses the ball 517, and the ball 517 is released.) To lock the groove 516, rotate knob 514. Knob 514 drives screw 512 to rotate, causing the lower mounting ring 509 to move up and down on screw 512, increasing the distance between the upper mounting ring 502 and the lower mounting ring 509. Place the new container 503 containing biochar blocks 8 on the lower mounting ring 509, so that the positioning ring 513 is inserted into the annular frame 524. After adding the container 503 as needed, rotate knob 514 in the opposite direction to make the upper mounting ring 502 and the lower mounting ring 509... Tighten the mounting ring 509 again so that the insertion ring 507 on the newly added receiving box 503 is inserted into the upper annular frame 524. Follow the above steps to screw the connecting ring 504 back onto the connecting pipe 2, and reassemble the lower closed cylinder 4. After fixing it onto the water storage cylinder 1, refill the water storage cylinder 1 with water. After the water flows through the filter plate, it is injected into the flow hole 508. Through the adsorption of the multi-layer biochar blocks 8, the water that has eliminated heavy metals will eventually flow out from the bottom of the lower closed cylinder 4.

[0094] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for removing heavy metals using biochar, characterized in that, include: Water storage tank (1); The inner wall of the connecting pipe (2) is inserted into the outside of the water storage cylinder (1), and the outer side of the connecting pipe (2) is fixedly connected to the upper sealing frame (3). The bottom of the upper sealing frame (3) is connected to the lower sealing cylinder (4) through a flange. Two water quality testing probes (7) are provided. The inner wall of the water storage tank (1) has two symmetrical fine holes, and the inner walls of the two fine holes are fixedly connected to the outside of the two water quality testing probes (7). Multiple biochar blocks (8) are located within the upper closed frame (3) and the lower closed cylinder (4), and the multiple biochar blocks (8) are located on the same axis. An adaptive processing module (5) is located inside the upper closed frame (3) and the lower closed cylinder (4), below the water storage cylinder (1). The adaptive processing module (5) is used to accommodate and fix the increase or decrease in the number of biochar blocks (8), and at the same time guide the water flow. Quick connection module (6), the quick connection module (6) is located outside the connecting pipe (2) and below the water storage cylinder (1). The quick connection module (6) is used to connect the whole formed by the connecting pipe (2), the upper sealing frame (3) and the lower sealing cylinder (4) to the water storage cylinder (1). The adaptive processing module (5) includes: Two fixing rings (501) are attached to each other on their adjacent sides. The outer side of each fixing ring (501) is slidably connected to the inner wall of the connecting pipe (2). A filter disc is fixedly connected to the inner wall of each fixing ring (501). A stabilizing ring (505) is fixedly connected to the inner wall of the connecting pipe (2). A spring (506) is fixedly connected to the upper side of the stabilizing ring (505). The end of the spring (506) away from the stabilizing ring (505) is in contact with the bottom of the upper fixing ring (501). The bottom of the water storage tank (1) is in contact with the upper side of the uppermost fixing ring (501). A connecting ring (504) is located outside the connecting tube (2). The connecting tube (2) has a threaded groove on its outside. The inner wall of the connecting ring (504) is rotatably connected to the threaded groove through an external thread. An upper mounting ring (502) is fixedly connected to the bottom of the connecting ring (504). A lower mounting ring (509) is provided below the upper mounting ring (502). Two symmetrical bosses (510) are fixedly connected to the outside of both the upper mounting ring (502) and the lower mounting ring (509). A slot is provided on each of the bosses (510). A round rod (511) and a screw rod (512) are respectively provided in the two slots on the same side. The adaptive processing module (5) further includes: Multiple receiving boxes (503) are distributed at equal intervals. Each receiving box (503) has an insertion ring (507) fixedly connected to its upper side. Each insertion ring (507) has two symmetrical rubber rings (523) on its outer side. Each receiving box (503) has an annular frame (524) fixedly connected to its bottom. Each receiving box (503) has multiple circumferentially distributed flow holes (508) on its upper side and bottom. Multiple nonwoven fabrics (525), the exterior of each of the multiple nonwoven fabrics (525) is in contact with the inner wall of the receiving box (503) on the same side, and the inner wall of each of the nonwoven fabrics (525) is in contact with the exterior of the biochar block (8) on the same side. The adaptive processing module (5) further includes: The positioning ring (513) is fixedly connected to the upper side of the lower mounting ring (509) at its bottom. The outer side of the positioning ring (513) is inserted into the inner wall of the lowermost annular frame (524). The outer side of the uppermost insertion ring (507) is inserted into the inner wall of the upper mounting ring (502). The outer side of the adjacent insertion rings (507) in the middle is also inserted into the inner wall of the annular frame (524). The adaptive processing module (5) further includes: A knob (514) is located outside the lead screw (512). The upper side of the knob (514) is movably connected to the bottom of the boss (510) on the same side. An outer ring (515) is slidably connected to the outside of the lead screw (512). The bottom of the outer ring (515) is fixedly connected to the upper side of the boss (510). Four circumferentially distributed slots are opened on the outside of the outer ring (515), and ball bearings (517) are slidably connected in each slot. Multiple grooves (516) are provided on the lead screw (512) and are distributed equidistantly in a circle. The outer side of the ball (517) is engaged with the inner wall of the groove (516). The adaptive processing module (5) further includes: The inner wall of the movable ring (518) is slidably connected to the outer wall of the outer ring (515). The inner wall of the movable ring (518) is provided with an annular conical groove (519), and the inner wall of the annular conical groove (519) is in contact with the outer wall of the ball (517). The constraint frame (520) has its inner wall slidably connected to the outer side of the movable ring (518), and its bottom is fixedly connected to the upper side of the boss (510). The constraint frame (520) has two symmetrical sliding grooves, and each sliding groove has a sliding block (521) slidably connected to it. The side of the sliding block (521) opposite to the movable ring (518) is fixedly connected. Spring 2 (522) is located outside the outer ring (515). One end of spring 2 (522) is fixedly connected to the upper side of the boss (510), and the other end is fixedly connected to the bottom of the movable ring (518).

2. The apparatus for removing heavy metals using biochar according to claim 1, characterized in that, The fast connection module (6) includes: A sealing ring (601) is located outside the water storage tank (1). The upper side of the sealing ring (601) is fixedly connected to the outside of the water storage tank (1), and the upper side of the connecting pipe (2) is attached to the bottom of the sealing ring (601). Two receiving cylinders (602) are circumferentially distributed. The upper side of each receiving cylinder (602) is fixedly connected to the outside of the water storage cylinder (1). The bottom inner wall of each receiving cylinder (602) is slidably connected to a first inclined block (603). The upper side of each first inclined block (603) is provided with a second inclined block (604). The second inclined block (604) is symmetrical to the first inclined block (603). The inner wall of each receiving cylinder (602) is provided with a slide rail. The outside of each second inclined block (604) is fixedly connected to a protrusion. The outside of the protrusion is slidably connected to the inner wall of the slide rail. The lever (605) is fixedly connected to the side opposite to the inclined block (603). The outer side of the receiving cylinder (602) is provided with arc-shaped grooves (606), and the inner wall of the arc-shaped grooves (606) is slidably connected to the outer side of the lever (605).

3. The apparatus for removing heavy metals using biochar according to claim 2, characterized in that, The quick connection module (6) also includes: Two pins (609) are located in two receiving cylinders (602) respectively. The upper side of each pin (609) is fixedly connected to the outside of the water storage cylinder (1). A lower pressure plate (611) is slidably connected to the outside of each pin (609). Two symmetrical rectangular grooves (612) are opened on the inner wall of each receiving cylinder (602). The inner wall of each rectangular groove (612) is slidably connected to the outside of the lower pressure plate (611).

4. The apparatus for removing heavy metals using biochar according to claim 3, characterized in that, The quick connection module (6) also includes: Two connecting plates (608) are located outside the two pins (609) respectively. Each connecting plate (608) has a circular groove. The inner wall of the circular groove is inserted into the outside of the pin (609) on the same side. The bottom of the lower pressure plate (611) is attached to the upper side of the connecting plate (608). The connecting plate (608) is fixedly connected to the opposite side of the outer side of the connecting tube (2) on the same side. Two L-shaped grooves (607) are located on the same side of the receiving cylinder (602), and the inner wall of the receiving cylinder (602) is slidably connected to the outside of the connecting plate (608).

5. A method for removing heavy metals using biochar, employing an apparatus for removing heavy metals using biochar as described in claim 4, characterized in that, The steps include the following: Step 1: After assembling the upper closed frame (3) and the lower closed cylinder (4) loaded with biochar blocks (8), fix them to the water storage cylinder (1) using the quick connection module (6); Step 2: Water containing heavy metals is transported into the water storage tank (1) and stored in the water storage tank (1). The water quality detection probe (7) will perform water quality detection on the water and evaluate the heavy metal content in it. Step 3: When the water in the water storage tank (1) flows through the biochar block (8), the heavy metal substances in it will be adsorbed by the biochar block (8), and the remaining water will flow out from the bottom of the lower closed tank (4). Step 4: When the heavy metal content in the water in the storage tank (1) exceeds the processing limit of the biochar block (8) in the device, after the water in the storage tank (1) has completely flowed out, separate the lower closed cylinder (4) from the upper closed frame (3), use the adaptive processing module (5) to load more biochar blocks (8), and then repeat the above steps.

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