A device and method for efficiently separating and recovering heavy metals

Abstract

The present application relates to heavy metal separation and recovery technical field, more particularly, to a kind of high-efficiency separation and recovery of heavy metal device and method, device includes reaction furnace, first condensing tank, second condensing tank and tail gas treatment tank, the gas outlet of reaction furnace is communicated with the inlet of first condensing tank, the outlet of first condensing tank is communicated with the inlet of second condensing tank by first air pipe, the outlet of second condensing tank is communicated with the inlet of tail gas treatment tank by second air pipe, first air pipe is equipped with first valve and first control mechanism, first control mechanism is used to monitor the condensation end point in first condensing tank and control first valve opening and closing, second air pipe is equipped with second valve and second control mechanism, second control mechanism is used to monitor the condensation end point in second condensing tank and control second valve opening and closing.Gaseous metal element is guaranteed to be fully condensed and separated, without manual monitoring and control, improve resource utilization rate and economic benefit.

Description

Technical Field

[0001] This invention relates to the field of heavy metal separation and recycling technology, and more specifically, to an apparatus and method for efficiently separating and recycling heavy metals. Background Technology

[0002] Antimony and arsenic belong to the same nitrogen group elements and have very similar chemical properties and formation mechanisms. Arsenic is usually classified as a heavy metal in the environmental field. This article will study arsenic as a heavy metal. Both often combine with sulfur to form symbiotic minerals. In the resource recovery and utilization of heavy metal wastewater from such mines (or soils contaminated by the above two heavy metals), such as mine wastewater containing antimony and arsenic heavy metal ions or leachate from soil contaminated with antimony and arsenic heavy metals, in order to reduce costs, quicklime (containing calcium hydroxide) is generally added during resource recovery to cause a precipitation reaction, generating antimony hydroxide (Sb(OH)6) and calcium arsenate (Ca3(AsO4)2) precipitates. Therefore, in the resource recovery process, antimony hydroxide and calcium arsenate are usually mixed and precipitated. To obtain higher resource utilization value, the mixture of antimony hydroxide and calcium arsenate precipitates needs to be reduced to elemental antimony and arsenic. Currently, individual reduction methods are generally used to reduce each heavy metal element one by one to generate the corresponding elemental heavy metal. This method is costly, technically complex, and the reduction rate and the efficiency of generating pure elemental substances are not easy to observe and judge. As a result, the mixture of antimony hydroxide and calcium arsenate is often not completely reduced, and the generated elemental antimony and arsenic are not completely collected, resulting in losses and affecting the economic benefits of resource utilization. Summary of the Invention

[0003] To overcome the problem in the prior art that the heavy metals generated by reduction reaction in mixed precipitates are not easy to separate and collect, the first aspect of the present invention provides an apparatus for efficiently separating and recovering heavy metals.

[0004] A second aspect of the present invention provides a method for efficiently separating and recovering heavy metals.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an efficient device for separating and recovering heavy metals, comprising: a reactor, a first condensing box, a second condensing box, and a tail gas treatment box. The outlet of the reactor is connected to the inlet of the first condensing box, the outlet of the first condensing box is connected to the inlet of the second condensing box through a first vent pipe, and the outlet of the second condensing box is connected to the inlet of the tail gas treatment box through a second vent pipe. The first vent pipe is provided with a first valve and a first control mechanism. The first control mechanism is used to monitor the condensation endpoint in the first condensing box and control the opening and closing of the first valve. The second vent pipe is provided with a second valve and a second control mechanism. The second control mechanism is used to monitor the condensation endpoint in the second condensing box and control the opening and closing of the second valve.

[0006] In the technical solution of this invention, a reaction is carried out in a reactor to generate gaseous metal elements and other gaseous products. Different gaseous metal elements are condensed in a first condensation box and a second condensation box to obtain solid metal elements. Since a first valve and a first control mechanism are provided on the first vent pipe, and a second valve and a second control mechanism are provided on the second vent pipe, this solution can automatically open the valve after condensation to allow the gas to enter the next chamber, which can ensure that the gaseous metal elements are fully condensed and separated, and no manual monitoring and control is required, thereby improving resource utilization and economic benefits.

[0007] Further, the first control mechanism includes a U-shaped tube, a first elastic push plate assembly, a first elastic pressure plate assembly, a first drive motor, a first transmission assembly, and a first liquid collection tank. The U-shaped tube includes a first bent pipe section and a first input pipe section and a first output pipe section connected to both sides of the first bent pipe section. The first bent pipe section is located above the first input pipe section and the first output pipe section. The first elastic push plate assembly is sealed and movably connected inside the first input pipe section. A first storage cavity for storing liquid is formed between the inner wall of the first input pipe section and the upper end face of the first elastic push plate assembly. The first elastic pressure plate assembly is sealed and movably connected inside the first output pipe section. A first receiving cavity for receiving liquid is formed between the inner side wall of the first output pipe section and the upper end face of the first elastic pressure plate assembly. A first drain port is opened on the side wall of the first receiving cavity. The first drain port communicates with the first liquid collection tank. The lower end of the first elastic pressure plate assembly extends out of the first output pipe section and is connected to the first transmission assembly. The output end of the first drive motor can be connected to the first valve through the first transmission assembly.

[0008] In this design, as the raw materials in the reactor continue to react, the gas pressure in the first condenser gradually increases. This increased pressure pushes the first elastic pusher assembly upwards in the first input pipe section. Before use, the liquid is stored in the first storage cavity above the first elastic pusher assembly. As the first elastic pusher assembly rises, it pushes the liquid into the first receiving cavity through the first bent pipe section. When the reaction reaches its endpoint, no new reaction gas is produced, and the gas pressure in the first condenser no longer increases. At this point, the first pusher assembly rises to its highest position and stops pushing the liquid into the first receiving cavity. When the liquid falls into the first receiving cavity, the first elastic pressure plate assembly descends under the influence of gravity. At this time, the first transmission assembly descends and disconnects the connection between the first drive motor and the first valve. As the liquid gradually drains from the first drain port into the first receiving cavity, the first elastic pressure plate assembly gradually rises and reconnects the first drive motor and the first valve. Thus, the first drive motor can drive the first valve to open, allowing the gas in the first condenser to enter the second condenser. Without manual intervention, the first valve can be automatically opened after condensation is complete.

[0009] Furthermore, the first elastic push plate assembly includes a first fixed plate, a first power column, a first thrust elastic element, a first thrust piston, and a first power piston. The first fixed plate is fixedly connected to the inner wall of the first input pipe section. The first thrust piston and the first power piston are respectively sealed and slidably connected to the inner wall of the first input pipe section. The upper end of the first thrust elastic element is fixedly connected to the first fixed plate, and the lower end of the first thrust elastic element is fixedly connected to the first power piston. The first power column is movably disposed through the first fixed plate and the first thrust elastic element. The upper end of the first power column is fixedly connected to the first thrust piston, and the lower end of the first power column is fixedly connected to the first power piston. A first receiving member is fixedly connected radially to the inner wall of the first input pipe section, and the lower end face of the first power piston can abut against the first receiving member.

[0010] In the design, the middle part of the first elastic push plate assembly is fixedly connected to the first input pipe section through the first fixed plate. The first thrust piston and the first power piston are connected by the first power column and the first thrust elastic member, and can slide up and down elastically in the first input pipe section. When the gas pressure in the first condenser increases, the pressure pushes the first power piston to move upward, and the first thrust piston is driven to move upward through the first power column, thereby pushing out the liquid. The first receiving member can prevent the first power piston from detaching from the first input pipe section.

[0011] Furthermore, the first elastic pressure plate assembly includes a first base plate, a first liquid-receiving piston, a first liquid-receiving column, and a first liquid-receiving elastic element. The first base plate is fixedly connected to the inner wall of the first output pipe section, the first liquid-receiving piston is slidably and sealingly connected to the inner wall of the first output pipe section, the first liquid-receiving column is movably disposed through the first base plate, the upper end of the first liquid-receiving column is fixedly connected to the first liquid-receiving piston, the upper end of the first liquid-receiving elastic element is fixedly connected to the first liquid-receiving piston, and the lower end of the first liquid-receiving elastic element is fixedly connected to the first base plate.

[0012] In this scheme, the bottom of the first elastic pressure plate assembly is fixedly connected to the first output pipe section through the first base plate. The first liquid-receiving piston can slide elastically in the first output pipe section under the connection of the first liquid-receiving elastic element. The first liquid-receiving piston can drive the first liquid-receiving column to rise and fall, thereby driving the first transmission assembly to rise and fall. This enables the first drive motor to connect or disconnect from the first valve, thereby realizing automatic control of the first valve.

[0013] Further, the second control mechanism includes a vertical pipe, a serpentine pipe, a second elastic push plate assembly, a second elastic pressure plate assembly, a second drive motor, a second transmission assembly, and a second collection tank. The second elastic push plate assembly is sealed and movably connected inside the vertical pipe. The serpentine pipe includes a second input pipe section, a second bent pipe section, a second intermediate pipe section, a third bent pipe section, and a second output pipe section connected in sequence. The opening of the second input pipe section faces upward, and a synchronous piston is sealed and slidably connected inside the second input pipe section. The synchronous piston is fixedly connected to the second elastic push plate assembly via a connecting rod. The lower surface of the piston, the second input pipe section, and the... A second storage cavity for storing liquid is formed between the second bent pipe section and the second intermediate pipe section. The second output pipe section is sealed and movably connected to the second elastic pressure plate assembly. A second receiving cavity for receiving liquid is formed between the inner side wall of the second output pipe section and the upper end face of the second elastic pressure plate assembly. A second drain port is provided on the side wall of the second receiving cavity. The second drain port is connected to the second liquid collection tank. The lower end of the second elastic pressure plate assembly extends out of the second output pipe section and is connected to the second transmission assembly. The output end of the second drive motor can be connected to the second valve through the second transmission assembly.

[0014] In this scheme, when the gas enters the second condensing chamber, as solid metallic elements are continuously generated through condensation, the gas pressure in the second condensing chamber continuously decreases, thereby driving the second elastic pusher assembly to descend in the vertical pipe. The second elastic pusher assembly drives the synchronous piston to descend in the second input pipe section via a connecting rod, thus pushing the liquid in the second storage chamber into the second receiving chamber. The second elastic pressure plate assembly in the second output pipe section descends under the action of liquid gravity, at which point it drives the second transmission assembly to descend, thereby disconnecting the connection between the second drive motor and the second valve. When the second condensing chamber is fully condensed, the second elastic pusher assembly stops descending, and no new liquid is pushed into the second receiving chamber. As the liquid gradually drains from the second drain port, the second elastic pressure plate assembly gradually rises and restores the connection between the second drive motor and the second valve. Thus, the second drive motor can drive the second valve to open, and the gas in the second condensing chamber can enter the exhaust gas treatment box. Without manual intervention, the second valve can be automatically opened after condensation is completed.

[0015] Furthermore, the second elastic push plate assembly includes a second fixed plate, a second power column, a second thrust elastic element, and a second thrust piston. The second fixed plate is fixedly connected to the inner wall of the vertical tube, and the second thrust piston is slidably and sealingly connected to the inner wall of the vertical tube. The upper end of the second thrust elastic element is fixedly connected to the second thrust piston, and the lower end of the second thrust elastic element is fixedly connected to the second fixed plate. The second power column is movably disposed through the second fixed plate, and the upper end of the second power column is fixedly connected to the second thrust piston. A second receiving element is provided transversely on the inner wall of the vertical tube, and the upper end face of the second thrust piston can abut against the second receiving element. The connecting rod is fixedly connected to the second thrust piston.

[0016] In this scheme, the lower part of the second elastic push plate assembly is fixedly connected to the second input pipe section through the second fixed plate. The second thrust piston can slide elastically in the vertical pipe through the second thrust elastic element. When the gas pressure in the second condenser box gradually decreases as condensation occurs, the second thrust piston moves downward, thereby driving the connecting rod and the synchronous piston to move downward. The second receiving element can prevent the second thrust piston from detaching from the vertical pipe.

[0017] Furthermore, the second elastic pressure plate assembly includes a second base plate, a second liquid-receiving piston, a second liquid-receiving column, and a second liquid-receiving elastic element. The second base plate is fixedly connected to the inner wall of the second output pipe section, the second liquid-receiving piston is slidably and sealingly connected to the inner wall of the second output pipe section, the second liquid-receiving column is movably disposed through the base plate, the upper end of the second liquid-receiving column is fixedly connected to the second liquid-receiving piston, the upper end of the second liquid-receiving elastic element is fixedly connected to the second liquid-receiving piston, and the lower end of the second liquid-receiving elastic element is fixedly connected to the second base plate.

[0018] In this scheme, the bottom of the second elastic pressure plate assembly is fixedly connected to the second output pipe section through the second base plate. The second liquid-receiving piston can slide elastically in the second output pipe section under the connection of the second liquid-receiving elastic element. The second liquid-receiving piston can drive the second liquid-receiving column to rise and fall, thereby driving the second transmission assembly to rise and fall. This enables the second drive motor to connect or disconnect from the second valve, realizing automatic control of the second valve.

[0019] Furthermore, both the first transmission assembly and the second transmission assembly include a power hook plate, a transition hook plate, a transition cylinder, an opening / closing hook plate, and a switch hook plate. The power hook plate is fixedly connected to the output shaft of the first drive motor or the second drive motor. The transition cylinder is rotatably sleeved on the lower end of the first liquid-bearing column or the second liquid-bearing column. The transition hook plate and the opening / closing hook plate are both fixedly connected to the transition cylinder. The switch hook plate is fixedly connected to the first valve or the second valve. The power hook plate can abut against the transition hook plate to push the transition cylinder to rotate, and the opening / closing hook plate can abut against the switch hook plate to push the switch hook plate to rotate.

[0020] In this scheme, when the first or second liquid-bearing column descends, the transition hook, transition cylinder, and opening / closing hook are at different heights from the switch hook and power hook, and cannot perform transmission. When the first or second liquid-bearing column rises to its highest point, the power hook, transition hook, transition cylinder, opening / closing hook, and switch hook are at the same height. Driven by the first or second drive motor, the power hook rotates the transition hook, which in turn rotates the opening / closing hook through the transition cylinder, thereby opening the first or second valve.

[0021] Furthermore, the reactor is connected to a stirring device, which includes a stirring motor, a stirring transmission assembly, a first stirring shaft, a second stirring shaft, a stirring sleeve, a first stirring comb, and a second stirring comb. The stirring motor is located outside the reactor, and its output shaft is connected to the input end of the stirring transmission assembly. The stirring transmission assembly has a first rotating end and a second rotating end that are coaxially arranged and rotate in opposite directions. The first stirring shaft is fixedly connected to the first rotating end, and the second stirring shaft is fixedly connected to the second rotating end. The second stirring shaft is coaxially rotatably sleeved outside the first stirring shaft. The stirring sleeve passes through the reactor and is fixedly connected to it. The second stirring shaft is coaxially rotatably connected to the stirring sleeve. The first stirring comb is fixedly connected to the first stirring shaft, and the second stirring comb is fixedly connected to the second stirring shaft.

[0022] In this scheme, by setting up a stirring device, the first stirring comb and the second stirring comb stir in different directions to promote the mixing of materials in the reactor and to fully carry out the reaction.

[0023] A method for efficiently separating and recovering heavy metals includes the following steps: placing a mixed metal compound and a reducing agent into a reactor, heating them to react and generate a mixed gaseous product containing at least two gaseous elemental metals and other gases; setting a first condensing chamber to a first condensing temperature and a second condensing chamber to a second condensing temperature, wherein the second condensing temperature is lower than the first condensing temperature; the mixed gaseous product enters the first condensing chamber and condenses to generate a solid first elemental metal; when a first control mechanism detects that the gas pressure in the first condensing chamber no longer increases, it controls a first valve to open; allowing the remaining gaseous product to enter the second condensing chamber and condense to generate a solid second elemental metal; when a second control mechanism detects that the gas pressure in the second condensing chamber no longer decreases, it controls a second valve to open, allowing the exhaust gas to enter an exhaust gas treatment chamber.

[0024] Compared with the prior art, the beneficial effects of the present invention are: I. The device for efficient separation and recovery of heavy metals of the present invention involves a reaction in a reactor to generate gaseous metal elements and other gaseous products. Different gaseous metal elements are condensed in a first condensation chamber and a second condensation chamber to obtain solid metal elements. Since a first valve and a first control mechanism are provided on the first vent pipe, and a second valve and a second control mechanism are provided on the second vent pipe, this scheme can automatically open the valves after condensation to allow the gas to enter the next chamber, ensuring that the gaseous metal elements are fully condensed and separated without the need for manual monitoring and control, thereby improving resource utilization and economic benefits.

[0025] II. The device for efficient separation and recovery of heavy metals of the present invention has a first control mechanism and a second control mechanism that can convert the change in air pressure in the chamber into the change in gravity of the liquid, and then drive the opening and closing of the valve through the transmission structure to realize the automatic determination of the condensation state endpoint, improve the condensation rate of gaseous heavy metal elements, improve the generation rate of solid heavy metal elements, and ultimately improve the resource utilization rate and economic benefits.

[0026] Third, the method for efficient separation and recovery of heavy metals of the present invention, when used in conjunction with the device, reduces the material and energy losses caused by low raw material reaction rates and low metal element generation rates due to human operational errors. It can improve resource utilization and economic benefits, and has great significance for promotion and application. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the device and method for efficiently separating and recovering heavy metals according to the present invention; Figure 2 This is a schematic diagram of the first control mechanism in its first state; Figure 3 yes Figure 2 Enlarged view of point A; Figure 4This is a structural schematic diagram of the first elastic pressure plate assembly in its first state; Figure 5 This is a schematic diagram of the first control mechanism in the second state; Figure 6 yes Figure 5 Enlarged view of point B; Figure 7 This is a structural schematic diagram of the first elastic pressure plate assembly in the second state; Figure 8 This is a schematic diagram of the second control mechanism in the first state; Figure 9 yes Figure 8 Enlarged view of point C; Figure 10 This is a schematic diagram of the second control mechanism in the second state; Figure 11 yes Figure 10 Enlarged view of point D; Figure 12 This is a top view of the first transmission assembly; Figure 13 yes Figure 12 Enlarged view of point E; Figure 14 This is a schematic diagram of the internal structure of the reactor; Figure 15 This is a schematic diagram of the stirring drive assembly.

[0028] In the attached diagram: 1. Reactor; 2. First condenser; 21. First vent pipe; 22. First valve; 3. Second condenser; 31. Second vent pipe; 32. Second valve; 4. Tail gas treatment box; 5. First control mechanism; 51. U-shaped pipe; 511. First bent pipe section; 512. First input pipe section; 5121. First storage cavity; 513. First output pipe section; 5131. First receiving cavity; 5132. First drain port; 52. First elastic push plate assembly; 521. First fixing plate; 522. First power column; 523. First thrust elastic element; 524. First power piston; 525. First thrust piston; 526. First receiving component; 53. First elastic pressure plate assembly; 531. First base plate; 532. First liquid-receiving piston; 533. First liquid-receiving column; 534. First liquid-receiving elastic component; 54. First drive motor; 55. First transmission assembly; 551. Power hook plate; 552. Transition hook plate; 553. Transition cylinder; 554. Opening and closing hook plate; 555. Switch hook plate; 56. First liquid collection tank; 6. Second control mechanism; 61. Vertical pipe; 62. Serpentine pipe; 621. Second input pipe section; 621 1. Second storage cavity; 622. Second bent pipe section; 623. Second intermediate pipe section; 624. Third bent pipe section; 625. Second output pipe section; 6251. Second receiving cavity; 6252. Second drain port; 63. Second elastic push plate assembly; 631. Second fixing plate; 632. Second power column; 633. Second thrust elastic element; 634. Second thrust piston; 635. Second receiving element; 64. Second elastic pressure plate assembly; 641. Second base plate; 642. Second liquid-receiving piston; 643. Second liquid-receiving column; 644. Second liquid-receiving elastic element; 6 5. Second drive motor; 66. Second transmission assembly; 67. Second collection tank; 68. Synchronous piston; 69. Connecting rod; 7. Stirring device; 71. Stirring motor; 72. Stirring transmission assembly; 721. First transmission gear; 722. Second transmission gear; 723. Third transmission gear; 724. Fourth transmission gear; 725. Fifth transmission gear; 726. First transmission column; 727. Second transmission column; 728. Transmission cylinder; 73. First stirring shaft; 74. Second stirring shaft; 75. Stirring sleeve; 76. First stirring comb; 77. Second stirring comb. Detailed Implementation

[0029] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0030] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] The technical solution of the present invention will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example 1 refer to Figures 1 to 13 This embodiment discloses an efficient device for separating and recovering heavy metals, including a reactor 1, a first condensing box 2, a second condensing box 3, and a tail gas treatment box 4. The outlet of the reactor 1 is connected to the inlet of the first condensing box 2. The outlet of the first condensing box 2 is connected to the inlet of the second condensing box 3 via a first vent pipe 21. The outlet of the second condensing box 3 is connected to the inlet of the tail gas treatment box 4 via a second vent pipe 31. The first vent pipe 21 is provided with a first valve 22 and a first control mechanism 5. The first control mechanism 5 is used to monitor the condensation endpoint in the first condensing box 2 and control the opening and closing of the first valve 22. The second vent pipe 31 is provided with a second valve 32 and a second control mechanism 6. The second control mechanism 6 is used to monitor the condensation endpoint in the second condensing box 3 and control the opening and closing of the second valve 32.

[0032] In this embodiment, a reaction is carried out in reactor 1 to generate gaseous metal elements and other gaseous products. Different gaseous metal elements are condensed in the first condenser 2 and the second condenser 3 to obtain solid metal elements. Since the first vent pipe 21 is equipped with a first valve 22 and a first control mechanism 5, and the second vent pipe 31 is equipped with a second valve 32 and a second control mechanism 6, this scheme can automatically open the valves after condensation to allow the gas to enter the next chamber, which can ensure that the gaseous metal elements are fully condensed and separated, and no manual monitoring and control is required, which can improve resource utilization and economic benefits.

[0033] Specifically, reactor 1 is equipped with a feed inlet and a discharge outlet for feeding materials into reactor 1 and discharging residues. The first condenser 2, the second condenser 3, and the tail gas treatment box 4 are all fixedly connected to the top of reactor 1. Correspondingly, the first condenser 2 and the second condenser 3 are equipped with solid metal element collection pipes, and the tail gas treatment box 4 is equipped with alkali inlet and outlet pipes for tail gas treatment.

[0034] refer to Figures 2 to 7 The first control mechanism 5 includes a U-shaped tube 51, a first elastic pusher assembly 52, a first elastic pressure plate assembly 53, a first drive motor 54, a first transmission assembly 55, and a first collection tank 56. The U-shaped tube 51 includes a first bent section 511 and a first input section 512 and a first output section 513 connected to both sides of the first bent section 511. The first bent section 511 is located above the first input section 512 and the first output section 513. The first input section 512 is sealed and movably connected to the first elastic pusher assembly 52. ​​A space for storing liquid is formed between the inner wall of the first input section 512 and the upper surface of the first elastic pusher assembly 52. The first storage cavity 5121 is sealed and movably connected to the first elastic pressure plate assembly 53 inside the first output pipe section 513. A first receiving cavity 5131 for receiving liquid is formed between the inner side wall of the first output pipe section 513 and the upper end face of the first elastic pressure plate assembly 53. A first drain port 5132 is opened on the side wall of the first receiving cavity 5131. The first drain port 5132 is connected to the first liquid collection tank 56. The lower end of the first elastic pressure plate assembly 53 extends out of the first output pipe section 513 and is connected to the first transmission assembly 55. The output end of the first drive motor 54 can be connected to the first valve 22 through the first transmission assembly 55.

[0035] In this embodiment, as the raw materials in the reactor 1 continue to react, the gas pressure in the first condenser 2 gradually increases. This increased gas pressure pushes the first elastic pusher assembly 52 upward in the first input pipe section 512. Before use, the liquid is stored in the first storage cavity 5121 above the first elastic pusher assembly 52. ​​As the first elastic pusher assembly 52 rises, it pushes the liquid into the first receiving cavity 5131 through the first bent pipe section. When the reaction reaches its endpoint, no new reaction gas is generated, and the gas pressure in the first condenser 2 no longer increases. At this point, the first pusher assembly rises to its highest position and stops pushing the liquid into the first receiving cavity 5131. 131; When the liquid falls into the first receiving cavity 5131, the first elastic pressure plate assembly 53 descends under the force of gravity of the liquid. At this time, the first transmission assembly 55 descends and disconnects the connection between the first drive motor 54 and the first valve 22. As the liquid gradually flows out of the first receiving cavity 5131 from the first drain port 5132, the first elastic pressure plate assembly 53 gradually rises and restores the connection between the first drive motor 54 and the first valve 22. Thus, the first drive motor 54 can drive the first valve 22 to open, and the gas in the first condensing box 2 can enter the second condensing box 3. Without manual intervention, the first valve 22 can be automatically opened after condensation is completed.

[0036] Specifically, Figure 2The first control mechanism 5 is in the first state, at which time the first elastic push plate assembly 52 has not yet risen, the first elastic pressure plate assembly 53 is in a high position, and the output end of the first drive motor 54, the first transmission assembly 55, and the first valve 22 are in a state where they can transmit power. At this time, the reaction has not yet started. When the reaction starts and causes the first transmission assembly 55 to descend, the first drive motor 54 is then started. Figure 5 The first control mechanism 5 is in the second state. At this time, the first elastic push plate assembly 52 rises to the end point, the first elastic pressure plate assembly 53 is in the low position, and the output end of the first drive motor 54, the first transmission assembly 55 and the first valve 22 are in a state where they cannot be transmitted. At this time, the reaction reaches the end point. Subsequently, as the liquid flows out, the first elastic pressure plate assembly 53 drives the first transmission assembly 55 to gradually reach the high point. The output end of the first drive motor 54, the first transmission assembly 55 and the first valve 22 are transmitted again, thereby opening the second valve 32.

[0037] Multiple first drain ports 5132 can be vertically formed on the inner wall of the first output pipe section 513. The diameter of the first drain port 5132 is smaller than the diameter of the first output pipe section 513, for example, one-tenth of the diameter of the first output pipe section 513, so that the liquid can flow out slowly, thereby ensuring that condensation has been fully completed. The outer wall of the first liquid collection tank 56 is fixedly connected to the outer wall of the first output pipe section 513, and a vent hole is formed at the upper end of the first liquid collection tank 56.

[0038] refer to Figure 3 The first elastic push plate assembly 52 includes a first fixed plate 521, a first power column 522, a first thrust elastic element 523, a first thrust piston 525, and a first power piston 524. The first fixed plate 521 is fixedly connected to the inner wall of the first input pipe section 512. The first thrust piston 525 and the first power piston 524 are respectively sealed and slidably connected to the inner wall of the first input pipe section 512. The upper end of the first thrust elastic element 523 is fixedly connected to the first fixed plate 521. The lower end of 3 is fixedly connected to the first power piston 524. The first power column 522 is movably disposed through the first fixed plate 521 and the first thrust elastic member 523. The upper end of the first power column 522 is fixedly connected to the first thrust piston 525. The lower end of the first power column 522 is fixedly connected to the first power piston 524. The inner sidewall of the first input pipe section 512 is radially fixedly connected to the first receiving member 526. The lower end face of the first power piston 524 can abut against the first receiving member 526.

[0039] In this embodiment, the middle part of the first elastic push plate assembly 52 is fixedly connected to the first input pipe section 512 through the first fixing plate 521. The first thrust piston 525 and the first power piston 524 are connected by the first power column 522 and the first thrust elastic member 523, and can slide up and down elastically in the first input pipe section 512. When the gas pressure in the first condenser 2 increases, the pressure pushes the first power piston 524 to move upward, and drives the first thrust piston 525 to move upward through the first power column 522, thereby pushing out the liquid. The first receiving member 526 can prevent the first power piston 524 from disengaging from the first input pipe section 512.

[0040] Specifically, a through hole is formed in the middle of the first fixed plate 521, through which the first power column 522 is movably disposed. The first receiving member 526 can be multiple small columns extending radially, which do not affect the passage of gas and can provide support. The first thrust piston 525 and the first power piston 524 can slide in the first input pipe section 512 and have good sealing performance, so that neither gas nor liquid will leak.

[0041] refer to Figure 3 The first elastic pressure plate assembly 53 includes a first base plate 531, a first liquid-receiving piston 532, a first liquid-receiving column 533, and a first liquid-receiving elastic element 534. The first base plate 531 is fixedly connected to the inner wall of the first output pipe section 513. The first liquid-receiving piston 532 is slidably connected to the inner wall of the first output pipe section 513. The first liquid-receiving column 533 is movably disposed through the first base plate 531. The upper end of the first liquid-receiving column 533 is fixedly connected to the first liquid-receiving piston 532. The upper end of the first liquid-receiving elastic element 534 is fixedly connected to the first liquid-receiving piston 532. The lower end of the first liquid-receiving elastic element 534 is fixedly connected to the first base plate 531.

[0042] In this embodiment, the bottom of the first elastic pressure plate assembly 53 is fixedly connected to the first output pipe section 513 through the first base plate 531. The first liquid-receiving piston 532 can slide elastically in the first output pipe section 513 under the connection of the first liquid-receiving elastic member 534. The first liquid-receiving piston 532 can drive the first liquid-receiving column 533 to rise and fall, thereby driving the first transmission assembly 55 to rise and fall, enabling the first drive motor 54 to connect or disconnect from the first valve 22, thereby realizing automatic control of the first valve 22.

[0043] refer to Figures 8 to 11The second control mechanism 6 includes a vertical pipe 61, a serpentine pipe 62, a second elastic push plate assembly 63, a second elastic pressure plate assembly 64, a second drive motor 65, a second transmission assembly 66, and a second collection tank 67. The second elastic push plate assembly 63 is sealed and movably connected inside the vertical pipe 61. The serpentine pipe 62 includes a second input pipe section 621, a second bent pipe section 622, a second intermediate pipe section 623, a third bent pipe section 624, and a second output pipe section 625 connected in sequence. The opening of the second input pipe section 621 faces upward. A synchronous piston 68 is sealed and slidably connected in the second input pipe section 621. The synchronous piston 68 is fixedly connected to the second elastic push plate assembly 63 via a connecting rod 69. The lower surface of the piston, the second input pipe section 621, and the second intermediate pipe section 622 are connected in sequence. A second storage cavity 6211 for storing liquid is formed between the two bent pipe section 622 and the second intermediate pipe section 623. The second output pipe section 625 is sealed and movably connected to the second elastic pressure plate assembly 64. A second receiving cavity 6251 for receiving liquid is formed between the inner side wall of the second output pipe section 625 and the upper end face of the second elastic pressure plate assembly 64. A second drain port 6252 is provided on the side wall of the second receiving cavity 6251. The second drain port 6252 is connected to the second liquid collection tank 67. The lower end of the second elastic pressure plate assembly 64 extends out of the second output pipe section 625 and is connected to the second transmission assembly 66. The output end of the second drive motor 65 can be connected to the second valve 32 through the second transmission assembly 66.

[0044] In this embodiment, when the gas enters the second condensing chamber 3, as solid metallic elements are continuously generated through condensation, the gas pressure in the second condensing chamber 3 continuously decreases, thereby causing the second elastic pusher assembly 63 to descend in the vertical pipe 61. The second elastic pusher assembly 63 drives the synchronous piston 68 to descend in the second input pipe section 621 via the connecting rod 69, thereby pushing the liquid in the second storage cavity 6211 into the second receiving cavity 6251. The second elastic pressure plate assembly 64 in the second output pipe section 625 descends under the action of liquid gravity, at which time it drives the second transmission assembly 66 to descend, thereby disconnecting the first The connection between the second drive motor 65 and the second valve 32 is as follows: After sufficient condensation in the second condensing chamber 3, the second elastic push plate assembly 63 no longer descends, and no new liquid is pushed into the second receiving cavity 6251; as the liquid is gradually discharged from the second drain port 6252, the second elastic pressure plate assembly 64 gradually rises and restores the connection between the second drive motor 65 and the second valve 32, so that the second drive motor 65 can drive the second valve 32 to open, and the gas in the second condensing chamber 3 can enter the exhaust gas treatment box 4. Without manual intervention, the second valve 32 can be automatically opened after condensation is completed.

[0045] refer to Figure 1The second elastic push plate assembly 63 includes a second fixed plate 631, a second power column 632, a second thrust elastic element 633, and a second thrust piston 634. The second fixed plate 631 is fixedly connected to the inner wall of the vertical tube 61, and the second thrust piston 634 is slidably connected to the inner wall of the vertical tube 61. The upper end of the second thrust elastic element 633 is fixedly connected to the second thrust piston 634, and the lower end of the second thrust elastic element 633 is fixedly connected to the second fixed plate 631. The second power column 632 is movably disposed through the second fixed plate 631, and the upper end of the second power column 632 is fixedly connected to the second thrust piston 634. A second receiving element 635 is provided transversely on the inner wall of the vertical tube 61, and the upper end face of the second thrust piston 634 can abut against the second receiving element 635. The connecting rod 69 is fixedly connected to the second thrust piston 634.

[0046] In this embodiment, the lower part of the second elastic push plate assembly 63 is fixedly connected to the second input pipe section 621 through the second fixing plate 631. The second thrust piston 634 can slide elastically in the vertical pipe 61 through the second thrust elastic member 633. When the gas pressure in the second condensing box 3 gradually decreases as condensation occurs, the second thrust piston 634 moves downward, thereby driving the connecting rod 69 and the synchronous piston 68 to move downward. The second receiving member 635 can prevent the second thrust piston 634 from disengaging from the vertical pipe 61.

[0047] Specifically, the connecting rod 69 can be U-shaped, with its two ends fixedly connected downwards to the second elastic push plate assembly 63 and the synchronous piston 68, respectively. The outer wall of the vertical pipe 61 and the outer wall of the second input pipe section 621 can be fixedly connected by a connector to improve structural stability. The second receiving member 635 can be multiple radially extending small pillars that do not affect the movement of the connecting rod 69 and can prevent the second thrust piston 634 from disengaging.

[0048] refer to Figure 1 The second elastic pressure plate assembly 64 includes a second base plate 641, a second liquid-receiving piston 642, a second liquid-receiving column 643, and a second liquid-receiving elastic element 644. The second base plate 641 is fixedly connected to the inner wall of the second output pipe section 625. The second liquid-receiving piston 642 is slidably connected to the inner wall of the second output pipe section 625. The second liquid-receiving column 643 is movably disposed through the base plate. The upper end of the second liquid-receiving column 643 is fixedly connected to the second liquid-receiving piston 642. The upper end of the second liquid-receiving elastic element 644 is fixedly connected to the second liquid-receiving piston 642. The lower end of the second liquid-receiving elastic element 644 is fixedly connected to the second base plate 641.

[0049] In this embodiment, the bottom of the second elastic pressure plate assembly 64 is fixedly connected to the second output pipe section 625 via the second base plate 641. The second liquid-receiving piston 642, connected to the second liquid-receiving elastic member 644, can elastically slide within the second output pipe section 625. The second liquid-receiving piston 642 can drive the second liquid-receiving column 643 to rise and fall, thereby driving the second transmission assembly 66 to rise and fall. This allows the second drive motor 65 to connect or disconnect from the second valve 32, achieving automatic control of the second valve 32. The structure and principle of the second elastic pressure plate assembly 64 are similar to those of the first elastic pressure plate assembly 53, and will not be described further here.

[0050] refer to Figures 3 to 6 as well as Figure 12 and Figure 13 Both the first transmission assembly 55 and the second transmission assembly 66 include a power hook plate 551, a transition hook plate 552, a transition cylinder 553, an opening / closing hook plate 554, and a switch hook plate 555. The power hook plate 551 is fixedly connected to the output shaft of the first drive motor 54 or the second drive motor 65. The transition cylinder 553 is rotatably sleeved on the lower end of the first liquid-bearing column 533 or the second liquid-bearing column 643. The transition hook plate 552 and the opening / closing hook plate 554 are both fixedly connected to the transition cylinder 553. The switch hook plate 555 is fixedly connected to the first valve 22 or the second valve 32. The power hook plate 551 can abut against the transition hook plate 552 to push the transition cylinder 553 to rotate. The opening / closing hook plate 554 can abut against the switch hook plate 555 to push the switch hook plate 555 to rotate.

[0051] In this embodiment, when the first liquid-bearing column 533 or the second liquid-bearing column 643 descends, the transition hook plate 552, the transition cylinder 553, and the opening / closing hook plate 554 are at different heights from the switch hook plate 555 and the power hook plate 551, and cannot perform transmission. When the first liquid-bearing column 533 or the second liquid-bearing column 643 rises to its highest point, the power hook plate 551, the transition hook plate 552, the transition cylinder 553, the opening / closing hook plate 554, and the switch hook plate 555 are at the same height. Driven by the first drive motor 54 or the second drive motor 65, the power hook plate 551 drives the transition hook plate 552 to rotate. The transition hook plate 552 drives the opening / closing hook plate 554 to rotate through the transition cylinder 553. The opening / closing hook plate 554 drives the switch hook plate 555 to rotate, thereby opening the first valve 22 or the second valve 32.

[0052] For details, please refer to Figure 13The transition hook 552, the opening / closing hook 554, the switching hook 555, and the power hook 551 are all sheet-like structures with a certain curvature at their ends. The curvature directions between adjacent hooks are the same, allowing them to at least partially fit together for transmission. Specifically, the power hook 551 and the opening / closing hook 554 are each a single piece, while the transition hook 552 and the switching hook 555 are each two pieces, ensuring stable transmission.

[0053] Example 2 refer to Figures 1 to 15 This embodiment is similar to Embodiment 1, and this embodiment discloses an efficient device for separating and recovering heavy metals.

[0054] The difference between this embodiment and Embodiment 1 is that, in this embodiment, reference... Figure 14 and Figure 15 The reactor 1 is connected to a stirring device 7, which includes a stirring motor 71, a stirring transmission assembly 72, a first stirring shaft 73, a second stirring shaft 74, a stirring sleeve 75, a first stirring comb 76, and a second stirring comb 77. The stirring motor 71 is located outside the reactor 1, and its output shaft is connected to the input end of the stirring transmission assembly 72. The stirring transmission assembly 72 has a first rotating end and a second rotating end that are coaxially arranged and rotate in opposite directions. The first stirring shaft 73 is fixedly connected to the first rotating end, and the second stirring shaft 74 is fixedly connected to the second rotating end. The second stirring shaft 74 is coaxially rotatably sleeved outside the first stirring shaft 73. The stirring sleeve 75 passes through the reactor 1 and is fixedly connected to it. The second stirring shaft 74 is coaxially rotatably connected inside the stirring sleeve 75. The first stirring comb 76 is fixedly connected to the first stirring shaft 73, and the second stirring comb 77 is fixedly connected to the second stirring shaft 74.

[0055] In this embodiment, by setting up a stirring device 7, the first stirring comb 76 and the second stirring comb 77 stir in different directions to promote the mixing of materials in the reactor 1 and to fully carry out the reaction.

[0056] More specifically, the stirring transmission assembly 72 includes a first transmission gear 721, a second transmission gear 722, a third transmission gear 723, a fourth transmission gear 724, a fifth transmission gear 725, a first transmission column 726, a second transmission column 727, and a transmission cylinder 728. The first transmission gear 721 is coaxially and fixedly connected to the output shaft of the stirring motor 71. The second transmission gear 722 meshes with the first transmission gear 721, and the third transmission gear 723 meshes with the second transmission gear 722. The second transmission gear 722 is rotatably connected to the first transmission column 726, and the first transmission column 726 is fixedly connected to the base of the reactor 1. The second drive column 727 is fixedly connected to the base of the reactor 1. The drive cylinder 728 is coaxially rotatably connected to the second drive column 727. The third drive gear 723 and the fourth drive gear 724 are coaxially fixedly connected to the drive cylinder 728. The fifth drive gear 725 meshes with the fourth drive gear 724 and is coaxially fixedly connected to the second stirring shaft 74. The output shaft of the stirring motor 71 is coaxially fixedly connected to the first stirring shaft 73, thereby realizing the coaxial and opposite rotation of the first stirring shaft 73 and the second stirring shaft 74, which helps to promote the thorough mixing of materials. The first stirring comb 76 and the second stirring comb 77 have multiple comb teeth, which can fully disperse the materials.

[0057] Example 3 This embodiment discloses a method for efficiently separating and recovering heavy metals, referring to... Figures 1 to 15 The device, used in conjunction with the apparatus of Example 1 or Example 2, includes the following steps: A mixed metal compound and a reducing agent are placed in a reactor 1 and heated to react and generate a mixed gaseous product containing at least two gaseous metal elements and other gases. A first condensing chamber 2 is set to a first condensing temperature, and a second condensing chamber 3 is set to a second condensing temperature, wherein the second condensing temperature is lower than the first condensing temperature. The mixed gaseous product enters the first condensing chamber 2 and condenses to generate a solid first metal element. When the first control mechanism 5 detects that the gas pressure in the first condensing chamber 2 no longer increases, it controls the first valve 22 to open. The remaining gaseous product then enters the second condensing chamber 3 and condenses to generate a solid second metal element. When the second control mechanism 6 detects that the gas pressure in the second condensing chamber 3 no longer decreases, it controls the second valve 32 to open, allowing the exhaust gas to enter the exhaust gas treatment chamber 4.

[0058] The method in this embodiment, when used in conjunction with the device, reduces material and energy losses caused by low raw material reaction rates and low metal element generation rates due to human operational errors. It can improve resource utilization and economic benefits, and has great significance for promotion and application.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A device for efficiently separating and recovering heavy metals, characterized in that: The system includes a reactor (1), a first condenser (2), a second condenser (3), and a tail gas treatment box (4). The outlet of the reactor (1) is connected to the inlet of the first condenser (2). The outlet of the first condenser (2) is connected to the inlet of the second condenser (3) through a first vent pipe (21). The outlet of the second condenser (3) is connected to the inlet of the tail gas treatment box (4) through a second vent pipe (31). The first vent pipe (21) is equipped with a first valve (22) and a first control mechanism (5). The first control mechanism (5) is used to monitor the condensation endpoint in the first condenser (2) and control the opening and closing of the first valve (22). The second vent pipe (31) is equipped with a second valve (32) and a second control mechanism (6). The second control mechanism (6) is used to monitor the condensation endpoint in the second condenser (3) and control the opening and closing of the second valve (32).

2. The apparatus for efficient separation and recovery of heavy metals according to claim 1, characterized in that: The first control mechanism (5) includes a U-shaped tube (51), a first elastic push plate assembly (52), a first elastic pressure plate assembly (53), a first drive motor (54), a first transmission assembly (55), and a first collection tank (56). The U-shaped tube (51) includes a first bent pipe section (511) and a first input pipe section (512) and a first output pipe section (513) connected to both sides of the first bent pipe section (511). The first bent pipe section (511) is located above the first input pipe section (512) and the first output pipe section (513). The first input pipe section (512) is sealed and movably connected to the first elastic push plate assembly (52). A liquid storage space is formed between the inner wall of the first input pipe section (512) and the upper end face of the first elastic push plate assembly (52). The first storage cavity (5121) of the body is sealed and movably connected to the first elastic pressure plate assembly (53) in the first output pipe section (513). The inner side wall of the first output pipe section (513) and the upper end face of the first elastic pressure plate assembly (53) form a first receiving cavity (5131) for receiving liquid. The side wall of the first receiving cavity (5131) is provided with a first drain port (5132). The first drain port (5132) is connected to the first liquid collection tank (56). The lower end of the first elastic pressure plate assembly (53) extends out of the first output pipe section (513) and is connected to the first transmission assembly (55). The output end of the first drive motor (54) can be connected to the first valve (22) through the first transmission assembly (55).

3. The apparatus for efficient separation and recovery of heavy metals according to claim 2, characterized in that: The first elastic push plate assembly (52) includes a first fixed plate (521), a first power column (522), a first thrust elastic element (523), a first thrust piston (525), and a first power piston (524). The first fixed plate (521) is fixedly connected to the inner wall of the first input pipe section (512). The first thrust piston (525) and the first power piston (524) are respectively sealed and slidably connected to the inner wall of the first input pipe section (512). The upper end of the first thrust elastic element (523) is fixedly connected to the first fixed plate (521). 3) The lower end is fixedly connected to the first power piston (524). The first power column (522) is movably connected through the first fixed plate (521) and the first thrust elastic member (523). The upper end of the first power column (522) is fixedly connected to the first thrust piston (525). The lower end of the first power column (522) is fixedly connected to the first power piston (524). The inner sidewall of the first input pipe section (512) is fixedly connected to the first receiving member (526) in the radial direction. The lower end face of the first power piston (524) can abut against the first receiving member (526).

4. The device for efficient separation and recovery of heavy metals according to claim 3, characterized in that: The first elastic pressure plate assembly (53) includes a first base plate (531), a first liquid-receiving piston (532), a first liquid-receiving column (533), and a first liquid-receiving elastic element (534). The first base plate (531) is fixedly connected to the inner wall of the first output pipe section (513). The first liquid-receiving piston (532) is slidably connected to the inner wall of the first output pipe section (513). The first liquid-receiving column (533) is movably disposed through the first base plate (531). The upper end of the first liquid-receiving column (533) is fixedly connected to the first liquid-receiving piston (532). The upper end of the first liquid-receiving elastic element (534) is fixedly connected to the first liquid-receiving piston (532). The lower end of the first liquid-receiving elastic element (534) is fixedly connected to the first base plate (531).

5. The apparatus for efficient separation and recovery of heavy metals according to claim 4, characterized in that: The second control mechanism (6) includes a vertical pipe (61), a serpentine pipe (62), a second elastic push plate assembly (63), a second elastic pressure plate assembly (64), a second drive motor (65), a second transmission assembly (66), and a second collection tank (67). The second elastic push plate assembly (63) is sealed and movably connected inside the vertical pipe (61). The serpentine pipe (62) includes a second input pipe section (621), a second bent pipe section (622), a second intermediate pipe section (623), a third bent pipe section (624), and a second output pipe section (625) connected in sequence. The opening of the second input pipe section (621) is set upward. A synchronous piston (68) is sealed and slidably connected in the second input pipe section (621). The synchronous piston (68) is fixedly connected to the second elastic push plate assembly (63) through a connecting rod (69). The lower surface of the piston and the second input pipe section (621) are connected to the second elastic push plate assembly (63). 21) A second storage cavity (6211) for storing liquid is formed between the second bent pipe section (622) and the second intermediate pipe section (623). The second output pipe section (625) is sealed and movably connected to the second elastic pressure plate assembly (64). A second receiving cavity (6251) for receiving liquid is formed between the inner side wall of the second output pipe section (625) and the upper end face of the second elastic pressure plate assembly (64). A second drain port (6252) is provided on the side wall of the second receiving cavity (6251). The second drain port (6252) is connected to the second liquid collection tank (67). The lower end of the second elastic pressure plate assembly (64) extends out of the second output pipe section (625) and is connected to the second transmission assembly (66). The output end of the second drive motor (65) can be connected to the second valve (32) through the second transmission assembly (66).

6. The apparatus for efficient separation and recovery of heavy metals according to claim 5, characterized in that: The second elastic push plate assembly (63) includes a second fixed plate (631), a second power column (632), a second thrust elastic element (633), and a second thrust piston (634). The second fixed plate (631) is fixedly connected to the inner wall of the vertical tube (61), and the second thrust piston (634) is slidably and sealingly connected to the inner wall of the vertical tube (61). The upper end of the second thrust elastic element (633) is fixedly connected to the second thrust piston (634). The lower end is fixedly connected to the second fixed plate (631), the second power column (632) is movably disposed through the second fixed plate (631), the upper end of the second power column (632) is fixedly connected to the second thrust piston (634), the inner sidewall of the vertical tube (61) is provided with a second receiving member (635) in the transverse direction, the upper end face of the second thrust piston (634) can abut against the second receiving member (635), and the connecting rod (69) is fixedly connected to the second thrust piston (634).

7. The apparatus for efficient separation and recovery of heavy metals according to claim 6, characterized in that: The second elastic pressure plate assembly (64) includes a second base plate (641), a second liquid-receiving piston (642), a second liquid-receiving column (643), and a second liquid-receiving elastic member (644). The second base plate (641) is fixedly connected to the inner wall of the second output pipe section (625). The second liquid-receiving piston (642) is slidably connected to the inner wall of the second output pipe section (625). The second liquid-receiving column (643) is movably disposed through the base plate. The upper end of the second liquid-receiving column (643) is fixedly connected to the second liquid-receiving piston (642). The upper end of the second liquid-receiving elastic member (644) is fixedly connected to the second liquid-receiving piston (642). The lower end of the second liquid-receiving elastic member (644) is fixedly connected to the second base plate (641).

8. The apparatus for efficient separation and recovery of heavy metals according to claim 7, characterized in that: Both the first transmission assembly (55) and the second transmission assembly (66) include a power hook plate (551), a transition hook plate (552), a transition cylinder (553), an opening / closing hook plate (554), and a switch hook plate (555). The power hook plate (551) is fixedly connected to the output shaft of the first drive motor (54) or the second drive motor (65). The transition cylinder (553) is rotatably sleeved on the lower end of the first liquid-receiving column (533) or the second liquid-receiving column (643). The transition hook (552) and the opening / closing hook (554) are both fixedly connected to the transition cylinder (553). The switch hook (555) is fixedly connected to the first valve (22) or the second valve (32). The power hook (551) can abut against the transition hook (552) to push the transition cylinder (553) to rotate. The opening / closing hook (554) can abut against the switch hook (555) to push the switch hook (555) to rotate.

9. The apparatus for efficient separation and recovery of heavy metals according to claim 1, characterized in that: The reactor (1) is connected to a stirring device (7), which includes a stirring motor (71), a stirring transmission assembly (72), a first stirring shaft (73), a second stirring shaft (74), a stirring sleeve (75), a first stirring comb (76), and a second stirring comb (77). The stirring motor (71) is located outside the reactor (1), and the output shaft of the stirring motor (71) is connected to the input end of the stirring transmission assembly (72). The stirring transmission assembly (72) has a first rotating end and a second rotating end that are coaxially arranged and rotate in opposite directions. The stirring shaft (73) is fixedly connected to the first rotating end, the second stirring shaft (74) is fixedly connected to the second rotating end, the second stirring shaft (74) is coaxially rotatably sleeved outside the first stirring shaft (73), the stirring sleeve (75) passes through the reactor (1) and is fixedly connected to the reactor (1), the second stirring shaft (74) is coaxially rotatably connected in the stirring sleeve (75), the first stirring comb (76) is fixedly connected to the first stirring shaft (73), and the second stirring comb (77) is fixedly connected to the second stirring shaft (74).

10. A method for efficiently separating and recovering heavy metals, characterized in that: The device, implemented in accordance with any one of claims 1 to 9, includes the following steps: placing a mixed metal compound and a reducing agent into a reaction furnace (1), heating it to react and generate a mixed gaseous product containing at least two gaseous metal elements and other gases; setting a first condensing chamber (2) to a first condensing temperature and a second condensing chamber (3) to a second condensing temperature, wherein the second condensing temperature is lower than the first condensing temperature; the mixed gaseous product enters the first condensing chamber (2) and condenses to generate a solid first metal element; when the first control mechanism (5) detects that the gas pressure in the first condensing chamber (2) no longer increases, it controls the first valve (22) to open; allowing the remaining gaseous product to enter the second condensing chamber (3) and condense to generate a solid second metal element; when the second control mechanism (6) detects that the gas pressure in the second condensing chamber (3) no longer decreases, it controls the second valve (32) to open, allowing the exhaust gas to enter the exhaust gas treatment chamber (4).

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