A gold extraction device and method for gold tailings sand

Abstract

The present invention relates to the technical field of gold extraction, and proposes a gold extraction device for gold tailings sand, which includes a device frame and a first motor. A feeding structure is arranged inside the device frame near the upper opening. A screening structure is fixedly connected to the outer surface of one side of the device frame near the opening. Stirring blades are arranged inside the device frame near the lower end. A stirring assembly is arranged on the outer surface of the inner wall at the lower end of the device frame near the stirring blades. The feeding structure includes a threaded rod rotatably connected to the outer surface of the inner wall of the device frame. A guide rod is fixedly connected to the outer surface of the inner wall of the device frame. A push plate is arranged between the guide rod and the threaded rod. The present invention also includes a method for extracting gold from gold tailings sand. Through the above technical solutions, the problems that the existing gold extraction device for gold tailings sand cannot push the outer surface of the entire collector, cannot push the gold ore particles out well, and cannot conveniently separate gold from a small amount of minerals with a high melting point are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of gold extraction, and specifically, to a gold extraction device and method for gold tailings sand. Background Art

[0002] Gold extraction equipment for gold tailings sand is relatively common in mining equipment. The extraction of gold mostly uses the flotation method, which utilizes the difference in the wettability of the mineral surface. By adding specific flotation reagents, the hydrophobic difference between gold ore and gangue minerals is enlarged, so as to realize the separation of gold and gangue minerals.

[0003] For example, a prior patent disclosed a method and device for gold purification (application publication number: CN108642301A). This device can greatly improve the accuracy of gold purification, can extract high-purity gold from low-purity gold at one time, and at the same time ensure the finished product quality of high-purity gold.

[0004] However, there are still certain deficiencies in this patent and existing gold extraction devices for gold tailings sand. The existing gold extraction devices for gold tailings sand cannot push the outer surface of the entire collector, cannot push the gold ore particles out well, and at the same time cannot conveniently separate gold from a small amount of minerals with a higher melting point. For this reason, we propose a gold extraction device for gold tailings sand. Summary of the Invention

[0005] The present invention proposes a gold extraction device for gold tailings sand, which solves the problem that the existing gold extraction devices for gold tailings sand in the related technology cannot push the outer surface of the entire collector, cannot push the gold ore particles out well, and at the same time cannot conveniently separate gold from a small amount of minerals with a higher melting point.

[0006] The technical solution of the present invention is as follows:

[0007] A gold extraction device for gold tailings sand includes a device frame and a first motor. A feeding structure is arranged inside the device frame near the upper opening. A screening structure is fixedly connected to the outer surface of one side of the device frame near the opening. Stirring blades are arranged inside the device frame near the lower end. A stirring assembly is arranged on the outer surface of the inner wall at the lower end of the device frame near the stirring blades.

[0008] The feeding structure includes a threaded rod rotatably connected to the outer surface of the inner wall of the device frame. A guide rod is fixedly connected to the outer surface of the inner wall of the device frame. A push plate is arranged between the guide rod and the threaded rod. A pushing assembly is arranged on the outer surface of the push plate. A diversion assembly is arranged on the outer side surface of the push plate. A second motor is arranged on the outer surface of the device frame. The threaded rod rotates driven by the second motor.

[0009] The pushing component includes a recessed opening formed on the outer surface of the push plate. A return spring is fixedly connected to the outer surface of the push plate. One end of the return spring is connected to a rotating plate, and a connecting shaft member is provided between one end of the rotating plate and the push plate.

[0010] The diversion component includes a through hole formed on the outer surface of the push plate. A fixed bracket is fixedly connected to the outer surface of the inner wall of the through hole in the push plate. An abutting spring is connected to the outer surface of the fixed bracket. One end of the abutting spring is connected to a baffle plate, and a limiting protrusion is fixedly connected to the outer surface of the inner wall of the through hole in the push plate near the baffle plate.

[0011] As a further technical solution of the present invention, the screening structure includes a screening box fixedly connected to the outer surface of the device frame near the opening. A filter screen is fixedly connected to the inside of the screening box. A connecting pipe is provided between the screening box and the device frame. A one-way valve is provided on the outer surface of the connecting pipe. One end of the one-way valve extends into the inside of the screening box, and a small pump is connected to the end extending into the screening box. A through opening is formed on one side outer surface of the screening box near the filter screen. A guiding plate is fixedly connected to the outer surface of the screening box. An aggregation frame is fixedly connected to the outer surface of the guiding plate. A guiding pipe is fixedly connected to the lower end of the aggregation frame. A melting component is connected to the outer surface of the guiding pipe.

[0012] As a further technical solution of the present invention, the melting component includes a melting pipe fixedly connected to one end of the guiding pipe. A heat preservation shell is fixedly connected to the outer surface of the melting pipe. A heating pipe is provided between the heat preservation shell and the melting pipe. A central shaft is provided at the axis of the melting pipe. A spiral blade is fixedly connected to the outer surface of the central shaft. A diversion pipe is fixedly connected to the outer surface of the melting pipe. A cooling box is fixedly connected to the lower end of the diversion pipe. A box door is rotatably connected to the outer surface of the cooling box. A third motor is fixedly connected to the melting pipe corresponding to the central shaft. A waste pipe is fixedly connected to the outer surface of the melting pipe near the lower end.

[0013] As a further technical solution of the present invention, a rotating shaft is rotatably connected to the outer surface of the lower inner wall of the device frame. A connecting rod and a strengthening blade are respectively fixedly connected to the outer surface of the rotating shaft. A protective housing is provided on the outer surface of the device frame corresponding to the upper end of the stirring blade. A rotating rod is provided inside the protective housing, and the rotating rod is used to drive the stirring blade to rotate. An air guiding pipe is connected to the outer surface of the protective housing.

[0014] As a further technical solution of the present invention, the number of the guiding rods is two groups and they are symmetrically distributed. Both the threaded rod and the guiding rods penetrate through the push plate. The push plate is in threaded connection with the threaded rod and in sliding connection with the guiding rods. By running the second motor to drive the threaded rod to rotate, the push plate is enabled to move along the length direction of the threaded rod.

[0015] As a further technical solution of the present invention, the rotating plate and the coupling member are rotatably connected. The coupling member is fixed to the outer surface of the push plate by screws. The rotating plate is maintained in a state flush with the outer surface of the push plate through a return spring. The thickness of the push plate near the second motor is greater than that at the end away from the second motor.

[0016] As a further technical solution of the present invention, the number of the through holes is several groups and is distributed in a "one" shape. Without external force, the baffle is located at the middle position inside the through hole, and the side profile of the through hole from the middle to the end away from the second motor gradually changes from a whole semi-circle to a partial circle. The medicament and gold particles can only flow from the end of the through hole near the second motor to the end away from the second motor through the cooperation of the baffle and the connecting spring.

[0017] As a further technical solution of the present invention, the filter screen is obliquely arranged. The metal particles and a small amount of medicament are separated by the filter screen. Through a small pump, the medicament in the screening frame is guided to the inside of the device frame through a connecting pipe. The medicament can only flow from the screening frame to the inside of the device frame through a one-way valve. The maximum heating temperature of the heating pipe is 1064.43 °C. The central shaft is driven to rotate by a third motor. The melted gold is guided to the inside of the cooling box through a diversion pipe. The melting pipe and the heat preservation shell are both made of heat preservation materials. The impurities with a melting point higher than 1064.43 °C are filtered through a waste pipe. A filter screen for liquid passing is arranged at the upper end of the diversion pipe. The two ends of the diversion pipe are respectively communicated with the inside of the melting pipe and the cooling box.

[0018] As a further technical solution of the present invention, the number of the blades of the stirring blades is several groups, and the numbers of the connecting rods and the strengthening blades are both several groups and are both arranged in an array. The connecting rods are driven to rotate by the blades of the stirring blades, and the rotating shaft and the strengthening blades rotate together with the connecting rods.

[0019] The present invention also includes a method for extracting gold from gold tailings sand, and the extraction method includes the following steps:

[0020] a. Add an appropriate amount of gold extraction medicament and gold tailings sand to the inside of the device frame, and start the equipment;

[0021] b. Under the action of the first motor, the stirring blades rotate to fully stir the gold extraction medicament and the gold tailings sand, and the mixing effect of the gold extraction medicament and the gold tailings sand is enhanced through the rotation of the strengthening blades;

[0022] c. After stirring for a certain time, when it can be clearly seen that gold is suspended on the upper surface of the gold extraction medicament, the second motor is operated to drive the push plate to slowly move back and forth along the length direction of the threaded rod. The gold particles are scraped out into the inside of the screening frame through the cooperation of the edge of the push plate and the pushing component;

[0023] d. The heating tube starts, rapidly raises the temperature to the highest temperature, separates the medicament from the gold particles through the filter screen, and the gold particles flow out from the through-port and finally fall into the guide tube;

[0024] e. The gold particles flow into the interior of the melting tube from the guide tube. Under the high temperature action of the heating tube, the gold begins to melt. Under the action of gravity, the melted gold flows into the cooling box from the diversion tube, and the refined gold can be obtained after cooling.

[0025] The working principle and beneficial effects of the present invention are as follows:

[0026] 1. Through the action of the pushing structure in the present invention, during the use process, the gold particles suspended on the surface of the medicament can be better scraped off, the scraping effect can be higher, the gold extraction efficiency of the equipment can be effectively improved, and at the same time, a small amount of gold particles adhered to the outer surface of the protective shell can be scraped away, making the scraping effect better.

[0027] 2. Through the action of the screening structure in the present invention, the medicament adhered to the scraped gold can be filtered out and recycled into the interior of the device frame. At the same time, the gold can be melted by high temperature, and a small amount of impurities with a temperature exceeding the melting point of gold can be discharged, making the refining effect better.

[0028] 3. Through the action of the stirring component in the present invention, during the use process, the stirring effect inside the device frame can be enhanced, the reaction effect between the medicament and the gold tailings can be better, and thus the gold in the gold tailings can be extracted faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0030] Figure 1 is a schematic structural diagram of the present invention;

[0031] Figure 2 is a partial structural schematic diagram of the pushing structure of the present invention cut open;

[0032] Figure 3 is of the present invention Figure 2 partial enlarged view;

[0033] Figure 4 is a partial structural schematic diagram of the diversion component of the present invention cut open;

[0034] Figure 5 is a partial structural schematic diagram of the screening structure of the present invention cut open;

[0035] Figure 6 is a partial structural schematic diagram of the melting component of the present invention cut open;

[0036] Figure 7 This is a schematic diagram of a partial structure of the stirring component of the present invention in a cut-away view.

[0037] In the figure: 1, device frame; 2, first motor;

[0038] 3, feeding structure; 31, threaded rod; 32, guide rod; 33, push plate; 34, pushing component; 341, recessed opening; 342, return spring; 343, coupling member; 344, rotating plate; 35, diversion component; 351, through hole; 352, fixed bracket; 353, connecting spring; 354, baffle; 355, limiting projection; 36, second motor;

[0039] 4, screening structure; 41, screening frame; 42, filter screen; 43, connecting pipe; 44, one-way valve; 45, through opening; 46, guide plate; 47, aggregation frame; 48, guide pipe; 49, melting component; 491, melting pipe; 492, heat preservation shell; 493, heating pipe; 494, central axis; 495, spiral blade; 496, diversion pipe; 497, cooling box; 498, box door; 499, third motor; 4910, waste pipe;

[0040] 5, stirring blade;

[0041] 6, stirring component; 61, rotating shaft; 62, connecting rod; 63, strengthening blade;

[0042] 7, protective housing; 8, air duct. Detailed implementation manners

[0043] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0044] Embodiment 1, as Figure 1 shown, this embodiment proposes a gold tailings sand gold extraction device, including a device frame 1 and a first motor 2. A feeding structure 3 is arranged inside the device frame 1 near the upper opening, a screening structure 4 is fixedly connected to the outer surface of one side of the device frame 1 near the opening, a stirring blade 5 is arranged inside the device frame 1 near the lower end, and a stirring component 6 is arranged on the outer surface of the inner wall of the lower end of the device frame 1 near the stirring blade 5.

[0045] Embodiment 2, as Figures 2 - 4As shown in the figure, on the basis of Embodiment 1, a feeding structure 3 is further proposed, which includes a threaded rod 31 rotatably connected to the outer surface of the inner wall of the device frame 1. A guide rod 32 is fixedly connected to the outer surface of the inner wall of the device frame 1. A push plate 33 is arranged between the guide rod 32 and the threaded rod 31. A pushing component 34 is arranged on the outer surface of the push plate 33. A diversion component 35 is arranged on the outer side surface of the push plate 33. A second motor 36 is arranged on the outer surface of the device frame 1. The threaded rod 31 rotates driven by the second motor 36. The pushing component 34 includes a recessed opening 341 formed on the outer surface of the push plate 33. A return spring 342 is fixedly connected to the outer surface of the push plate 33. One end of the return spring 342 is connected to a rotating plate 344. A connecting shaft member 343 is arranged between one end of the rotating plate 344 and the push plate 33. The diversion component 35 includes a through hole 351 formed on the outer surface of the push plate 33. A fixed bracket 352 is fixedly connected to the outer surface of the inner wall of the push plate 33 at the through hole 351. An abutting spring 353 is connected to the outer surface of the fixed bracket 352. One end of the abutting spring 353 is connected to a baffle 354. A limiting protrusion 355 is fixedly connected to the outer surface of the inner wall of the push plate 33 at the through hole 351 near the baffle 354. The number of the guide rods 32 is two groups and they are symmetrically distributed. Both the threaded rod 31 and the guide rod 32 penetrate through the push plate 33. The push plate 33 is in threaded connection with the threaded rod 31. The push plate 33 is in sliding connection with the guide rod 32. By operating the second motor 36 to drive the threaded rod 31 to rotate, the push plate 33 is realized to move along the length direction of the threaded rod 31. The rotating plate 344 is in rotational connection with the connecting shaft member 343. The connecting shaft member 343 is fixed to the outer surface of the push plate 33 by screws. By means of the return spring 342, the rotating plate 344 is kept flush with the outer surface of the push plate 33. The thickness of one end of the push plate 33 close to the second motor 36 is greater than the thickness of the end far from the second motor 36. The number of the through holes 351 is several groups and they are distributed in a "one" shape. Without external force, the baffle 354 is located at the middle position inside the through hole 351, and the side profile of the through hole 351 from the middle to the end far from the second motor 36 gradually changes from a whole semi-circle to a partial circle. By cooperating the baffle 354 with the abutting spring 353, the medicament and the gold particles can only flow from the end of the through hole 351 close to the second motor 36 to the end far from the second motor 36. During the use process, the gold particles suspended on the surface of the medicament can be better scraped off, the scraping effect can be higher, the gold extraction efficiency of the equipment can be effectively improved, and at the same time, a small amount of gold particles adhered to the outer surface of the protective shell 7 can be scraped off, and the scraping effect can be better.

[0046] Embodiment 3, as Figures 5 - 6As shown in the figure, on the basis of Embodiment 2, a screening structure 4 is further proposed. The screening structure 4 includes a screening box 41 fixedly connected to the outer surface of the device frame 1 near the opening. A filter screen 42 is fixedly connected inside the screening box 41. A connecting pipe 43 is arranged between the screening box 41 and the device frame 1. A one-way valve 44 is arranged on the outer surface of the connecting pipe 43. One end of the one-way valve 44 extends into the inside of the screening box 41, and a small pump is connected to the end extending into the screening box 41. A through hole 45 is opened on the outer surface of one side of the screening box 41 near the filter screen 42. A guide plate 46 is fixedly connected to the outer surface of the screening box 41. An aggregation frame 47 is fixedly connected to the outer surface of the guide plate 46. A guide pipe 48 is fixedly connected to the lower end of the aggregation frame 47. A melting assembly 49 is connected to the outer surface of the guide pipe 48. The melting assembly 49 includes a melting pipe 491 fixedly connected to one end of the guide pipe 48. A heat preservation shell 492 is fixedly connected to the outer surface of the melting pipe 491. A heating pipe 493 is arranged between the heat preservation shell 492 and the melting pipe 491. A central axis 494 is arranged at the axis of the melting pipe 491. A spiral blade 495 is fixedly connected to the outer surface of the central axis 494. A diversion pipe 496 is fixedly connected to the outer surface of the melting pipe 491. The lower end of the diversion pipe 496 is fixedly connected to a cooling box 497. A box door 498 is rotatably connected to the outer surface of the cooling box 497. A third motor 499 is fixedly connected to the melting pipe 491 corresponding to the central axis 494. A waste pipe 4910 is fixedly connected to the outer surface of the melting pipe 491 near the lower end. The filter screen 42 is obliquely arranged. The metal particles and a small amount of medicament are separated by the filter screen 42. Through the small pump, the medicament in the screening box 41 is guided to the inside of the device frame 1 through the connecting pipe 43. The one-way valve 44 enables the medicament to only flow from the inside of the screening box 41 to the inside of the device frame 1. The maximum heating temperature of the heating pipe 493 is 1064.43 °C. The central axis 494 is driven to rotate by the third motor 499. The melted gold is guided to the inside of the cooling box 497 through the diversion pipe 496. Both the melting pipe 491 and the heat preservation shell 492 are made of heat preservation materials. The waste pipe 4910 is used to filter out a small amount of impurities with a melting point higher than 1064.43 °C. A filter screen 42 through which liquid can pass is arranged at the upper end of the diversion pipe 496. The two ends of the diversion pipe 496 are respectively communicated with the inside of the melting pipe 491 and the cooling box 497. During use, the medicament adhered to the scraped gold can be filtered out and recovered into the inside of the device frame 1. At the same time, the gold can be melted by high temperature, and a small amount of impurities with a temperature exceeding the melting point of gold can be discharged, which can make the refining effect better.

[0047] Embodiment 4, as Figure 7As shown in the figure, on the basis of Embodiment 1, a rotating shaft 61 is rotatably connected to the outer surface of the inner wall at the lower end of the device frame 1. A connecting rod 62 and a reinforcing blade 63 are fixedly connected to the outer surface of the rotating shaft 61 respectively. A protective housing 7 is arranged on the outer surface of the device frame 1 corresponding to the upper end of the stirring blade 5. A rotating rod is arranged inside the protective housing 7, and the rotating rod is used to drive the stirring blade 5 to rotate. An air duct 8 is connected to the outer surface of the protective housing 7. The number of blades of the stirring blade 5 is several groups. The number of the connecting rods 62 and the reinforcing blades 63 is several groups and they are both arranged in an array. By the blades of the stirring blade 5 hitting the connecting rod 62, the connecting rod 62 drives the rotating shaft 61 and the reinforcing blade 63 to rotate together. During the use process, the stirring effect inside the device frame 1 can be enhanced, and the reaction effect between the medicament and the gold tailings sand can be made better, so that the gold in the gold tailings sand can be extracted faster.

[0048] A method for extracting gold from gold tailings sand of the present invention, the extraction method includes the following steps:

[0049] a. Add an appropriate amount of gold extraction medicament and gold tailings sand into the device frame 1, and start the equipment;

[0050] b. Under the action of the first motor 2, the stirring blade 5 rotates to fully stir the gold extraction medicament and the gold tailings sand, and the mixing effect of the gold extraction medicament and the gold tailings sand is enhanced by the rotation of the reinforcing blade 63;

[0051] c. After stirring for a certain time, when gold can be clearly seen suspended on the upper surface of the gold extraction medicament, by the operation of the second motor 36, the push plate 33 is driven to slowly move back and forth along the length direction of the threaded rod 31, and the gold particles are scraped out into the inside of the screening frame 41 by the edge of the push plate 33 in cooperation with the pushing component 34;

[0052] d. The heating tube 493 is started, and the temperature is quickly raised to the highest temperature. The medicament and the gold particles are separated by the filter screen 42, and the gold particles flow out from the through hole 45 and finally fall into the guide tube 48;

[0053] e. The gold particles flow into the inside of the melting tube 491 from the guide tube 48. Under the high temperature action of the heating tube 493, the gold starts to melt. Under the action of gravity, the melted gold flows into the cooling box 497 from the diversion tube 496, and the refined gold can be obtained after cooling.

[0054] In summary, during use, the user can add an appropriate amount of gold extraction agent into the interior of the device frame 1, and then add an appropriate amount of gold tailings sand. Under the action of the first motor 2, the stirring blade 5 is driven to rotate, thereby mixing and stirring the gold tailings sand and the gold extraction agent. At the same time, the airflow in the air duct 8 will enter the interior of the device frame 1 to enhance the stirring effect. During the rotation and stirring of the stirring blade 5, the blades of the stirring blade 5 will beat the connecting rod 62, causing the connecting rod 62 to drive the rotating shaft 61 to rotate together. While the rotating shaft 61 is rotating, it will drive the strengthening blade 63 to rotate together, thereby enhancing the mixing effect of the gold tailings sand and the gold extraction agent, enabling the effect of the gold extraction agent to be better exerted. At the same time, the rotating gold tailings sand and gold extraction agent will beat the strengthening blade 63, causing the strengthening blade 63 to generate a rotating force, enabling the stirring and mixing effect to be better.

[0055] After reacting for a certain period of time, the gold will suspend to the upper end of the gold extraction agent inside the device frame 1. The second motor 36 can be operated to drive the threaded rod 31 to rotate, causing the push plate 33 to slowly move away from the end close to the second motor 36 towards the other end. Under the scraping action of the push plate 33, the gold particles at the upper end of the gold extraction agent are scraped from one end of the device frame 1 into the interior of the screening frame 41.

[0056] When the gold particles are scraped into the interior of the screening frame 41, under the action of the filter screen 42, the remaining agent will flow into the interior of the screening frame 41 from the lower end of the filter screen 42. At the same time, the gold particles will flow through the opening into the guide plate 46 and finally flow into the guide pipe 48 through the aggregation frame 47. The heating pipe 493 is immediately heated to the highest temperature. At high temperature, the gold particles begin to melt. The liquid gold flows from the upper end of the diversion pipe 496 into the interior of the cooling box 497 under the action of gravity for cooling, and finally forms refined gold. At the same time, a small amount of high-temperature incommunicable impurities will be discharged from the waste pipe 4910. By operating the third motor 499 to drive the central shaft 494 and the spiral blade 495 to rotate together, the fluidity of the liquid gold and a small amount of solid impurities can be enhanced.

[0057] It should be noted that when the push plate 33 moves towards the side close to the second motor 36, the gold extraction agent and the gold particles can flow in from the end of the through hole 351 close to the second motor 36. Under the pushing action of the gold extraction agent and the gold particles, the baffle 354 can be made to move towards the side away from the fixed bracket 352, so that an opening is formed between the baffle 354 and the through hole 351 to facilitate the gold extraction agent and the gold particles to flow out to the other side of the push plate 33. At this time, the connecting spring 353 will be in a stretched state. When the push plate 33 moves in the opposite direction, under the pushing action of the gold extraction agent and the gold particles, the baffle 354 will be in contact with the limit protrusion 355, and at the same time, the connecting spring 353 will remain relaxed. At this time, the opening in the middle of the through hole 351 is in a closed state.

[0058] It should be noted that when the rotating plate 344 moves towards the end far from the second motor 36, the floating gold at the opening of the pushing plate 33 can be scraped out through the rotating plate 344. When the rotating plate 344 contacts the protective housing 7, the rotating plate 344 will rotate with one end of the coupling member 343 as the axis, and at the same time, it will compress the return spring 342 to contract. When passing through the protective housing 7, under the action of the return spring 342, the rotating plate 344 will close the opening of the recess 341 again. On the contrary, when the rotating plate 344 moves towards the end close to the second motor 36, the rotating plate 344 will rotate in the reverse direction with one end of the coupling member 343 as the axis. At this time, the return spring 342 is stretched. After passing through the range of 7, under the action of the return spring 342, the rotating plate 344 will close the opening of the recess 341 again. The opening of the recess 341 prevents the gold particles within the range of the protective housing 7 from not being scraped out.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A gold extraction device for gold tailings sand, characterized in that, It includes a device frame (1) and a first motor (2). Inside the device frame (1), near the upper opening, a material pushing structure (3) is provided. On the outer surface of one side of the device frame (1) near the opening, a screening structure (4) is fixedly connected. Inside the device frame (1), near the lower end, stirring blades (5) are provided. On the outer surface of the inner wall at the lower end of the device frame (1) near the stirring blades (5), a stirring assembly (6) is provided; The material pushing structure (3) includes a threaded rod (31) rotatably connected to the outer surface of the inner wall of the device frame (1). A guide rod (32) is fixedly connected to the outer surface of the inner wall of the device frame (1). Between the guide rod (32) and the threaded rod (31), a push plate (33) is provided. On the outer surface of the push plate (33), a pushing assembly (34) is provided. On the outer side surface of the push plate (33), a diversion assembly (35) is provided. On the outer surface of the device frame (1), a second motor (36) is provided. The threaded rod (31) rotates driven by the second motor (36); The pushing assembly (34) includes a recessed opening (341) formed on the outer surface of the push plate (33). A return spring (342) is fixedly connected to the outer surface of the push plate (33). One end of the return spring (342) is connected to a rotating plate (344). Between one end of the rotating plate (344) and the push plate (33), a coupling member (343) is provided; The diversion assembly (35) includes a through hole (351) formed on the outer surface of the push plate (33). A fixed bracket (352) is fixedly connected to the outer surface of the inner wall of the push plate (33) at the through hole (351). On the outer surface of the fixed bracket (352), a connecting spring (353) is connected. One end of the connecting spring (353) is connected to a baffle (354). A limiting protrusion (355) is fixedly connected to the outer surface of the inner wall of the push plate (33) at the through hole (351) near the baffle (354).

2. The gold extraction device for gold tailings sand according to claim 1, characterized in that, The screening structure (4) includes a screening frame (41) fixedly connected to the outer surface of the device frame (1) near the opening. Inside the screening frame (41), a filter screen (42) is fixedly connected. Between the screening frame (41) and the device frame (1), a connecting pipe (43) is provided. On the outer surface of the connecting pipe (43), a one-way valve (44) is provided. One end of the one-way valve (44) extends into the inside of the screening frame (41), and the end extending into the screening frame (41) is connected to a small pump. On the outer surface of one side of the screening frame (41) near the filter screen (42), a through opening (45) is formed. On the outer surface of the screening frame (41), a guide plate (46) is fixedly connected. On the outer surface of the guide plate (46), an aggregation frame (47) is fixedly connected. At the lower end of the aggregation frame (47), a guide pipe (48) is fixedly connected. On the outer surface of the guide pipe (48), a melting assembly (49) is connected.

3. The gold extraction device for gold tailings sand according to claim 2, characterized in that, The melting component (49) includes a melting tube (491) fixedly connected to one end of a guiding tube (48). A heat preservation shell (492) is fixedly connected to the outer surface of the melting tube (491). A heating tube (493) is arranged between the heat preservation shell (492) and the melting tube (491). A central axis (494) is arranged at the axis center of the melting tube (491). A spiral blade (495) is fixedly connected to the outer surface of the central axis (494). A diversion tube (496) is fixedly connected to the outer surface of the melting tube (491). The lower end of the diversion tube (496) is fixedly connected to a cooling box (497). A box door (498) is rotatably connected to the outer surface of the cooling box (497). A third motor (499) is fixedly connected to the melting tube (491) corresponding to the central axis (494) at one end. A waste material tube (4910) is fixedly connected to the outer surface of the melting tube (491) near the lower end.

4. The gold extraction device for gold tailings sand according to claim 1, characterized in that, A rotating shaft (61) is rotatably connected to the outer surface of the inner wall at the lower end of the device frame (1). A connecting rod (62) and a strengthening blade (63) are respectively fixedly connected to the outer surface of the rotating shaft (61). A protective outer shell (7) is arranged on the outer surface of the device frame (1) corresponding to the upper end of the stirring blade (5). A rotating rod is arranged inside the protective outer shell (7), and the rotating rod is used to drive the stirring blade (5) to rotate. An air guiding pipe (8) is connected to the outer surface of the protective outer shell (7).

5. The gold extraction device for gold tailings sand according to claim 1, characterized in that, The number of the guiding rods (32) is two groups and they are symmetrically distributed. Both the threaded rod (31) and the guiding rods (32) penetrate through the push plate (33). The push plate (33) is in threaded connection with the threaded rod (31), and the push plate (33) is in sliding connection with the guiding rods (32). By operating the second motor (36) to drive the threaded rod (31) to rotate, the push plate (33) is realized to move along the length direction of the threaded rod (31).

6. The gold extraction device for gold tailings sand according to claim 5, characterized in that, The rotating plate (344) is in rotational connection with the coupling member (343). The coupling member (343) is fixed to the outer surface of the push plate (33) by screws. By means of a return spring (342), the rotating plate (344) is kept in a state flush with the outer surface of the push plate (33). The thickness of the end of the push plate (33) close to the second motor (36) is greater than the thickness of the end far from the second motor (36).

7. The gold extraction device for gold tailings sand according to claim 6, characterized in that, The number of the through holes (351) is several groups and they are distributed in a "one" shape. Without external force, the baffle (354) is located at the middle position inside the through holes (351). And the side profile of the through holes (351) from the middle to the end far from the second motor (36) gradually changes from a whole semi - circle to a partial circle. By the cooperation of the baffle (354) and the connecting spring (353), it is realized that the medicament and the gold particles can only flow from the end of the through holes (351) close to the second motor (36) to the end far from the second motor (36).

8. The gold extraction device for gold tailings sand according to claim 3, characterized in that, The filter screen (42) is obliquely arranged. The metal particles and a small amount of medicament are separated by the filter screen (42). Through a small pump, the medicament in the screening box (41) is guided to the inside of the device frame (1) through the connecting pipe (43). The one-way valve (44) is used to ensure that the medicament can only flow from the screening box (41) to the inside of the device frame (1). The maximum heating temperature of the heating pipe (493) is 1064.43 °C. The central shaft (494) is driven to rotate by the third motor (499). The melted gold is guided to the inside of the cooling box (497) through the diversion pipe (496). The melting pipe (491) and the heat preservation shell (492) are both made of heat preservation materials. A small amount of impurities with a melting point higher than 1064.43 °C are filtered through the waste pipe (4910). A filter screen for liquid passing is arranged at the upper end of the diversion pipe (496). The two ends of the diversion pipe (496) are respectively communicated with the inside of the melting pipe (491) and the cooling box (497).

9. The gold extraction device for gold tailings sand according to claim 4, characterized in that, The number of blades of the stirring blade (5) is several groups. The number of the connecting rods (62) and the strengthening blades (63) is several groups and they are both arranged in an array. The connecting rod (62) is driven to rotate by the beating of the blades of the stirring blade (5), so that the connecting rod (62) drives the rotating shaft (61) and the strengthening blade (63) to rotate together.

10. A gold extraction method for gold tailings sand, applied to the gold extraction device for gold tailings sand according to any one of claims 1-9, characterized in that, The refining method includes the following steps: a. Add an appropriate amount of gold extraction medicament and gold tailings sand to the inside of the device frame (1), and start the equipment; b. Under the action of the first motor (2), the stirring blade (5) rotates to fully stir the gold extraction medicament and the gold tailings sand. The mixing effect of the gold extraction medicament and the gold tailings sand is enhanced by the rotation of the strengthening blade (63); c. After stirring for a certain period of time, when it can be clearly seen that gold is suspended on the upper surface of the gold extraction medicament, the second motor (36) runs to drive the push plate (33) to slowly move back and forth along the length direction of the threaded rod (31). The edge of the push plate (33) cooperates with the pushing component (34) to scrape the gold particles into the inside of the screening box (41); d. The heating pipe (493) is started and quickly heated to the maximum temperature. The medicament and the gold particles are separated by the filter screen (42). The gold particles flow out from the through hole (45) and finally fall into the guide pipe (48); e. The gold particles flow into the inside of the melting pipe (491) from the guide pipe (48). Under the high temperature action of the heating pipe (493), the gold begins to melt. Under the action of gravity, the melted gold flows into the cooling box (497) through the diversion pipe (496). After cooling, the refined gold can be obtained.

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