A separation apparatus for extracting metal elements from coal gangue

Abstract

This invention discloses a separation device for extracting metal elements from coal gangue, relating to the field of coal gangue processing technology. The device includes a base, a reaction vessel, a connecting pipe, a liquid pump, a separation tank, a drain pipe, a filter plate, a rinsing mechanism, a tilting mechanism, and an installation mechanism. By incorporating the tilting and rinsing mechanisms, when the leachate passes through the filter plate, impurities remain at the top of the filter plate. During cleaning, the movable seat moves away from the separation tank, causing the installation frame and filter plate to move out of the separation tank. When the second spur gear contacts the toothed plate, the installation frame tilts, and the filter plate rotates, causing some impurities to fall directly into the collection tank. The movable seat then continues to move, while water is sprayed through a nozzle to backwash the filter plate, rinsing its surface and facilitating automatic cleaning of impurities.

Description

Technical Field

[0001] This invention relates to the field of coal gangue processing technology, specifically a separation device for extracting metal elements from coal gangue. Background Technology

[0002] Coal gangue is a solid waste generated during coal mining and washing processes. Its main components are Al₂O₃ and SiO₂, and it also contains varying amounts of Fe₂O₃, CaO, MgO, and trace rare elements such as gallium, vanadium, titanium, and cobalt. Currently, extracting high-value metals such as aluminum, gallium, and rare earth elements from coal gangue has become an important direction for resource utilization. When extracting rare and dispersed metals such as germanium and gallium, sulfuric acid or hydrochloric acid is typically used for acid leaching of the coal gangue: In a pressure-resistant reactor, heating and pressurization dissolve the metal oxides in the coal gangue, forming soluble salts, thus obtaining a leachate. The leachate is then filtered using a solid-liquid separation device to obtain a solution containing the metal elements, which are then recovered in high purity through methods such as ion exchange or solvent extraction.

[0003] Solid-liquid separation is a crucial step in the extraction process described above. Existing separation equipment typically uses filter plates to filter the leachate. As the leachate passes through the filter plate, solid impurities are trapped on its surface. With continued filtration, impurities gradually accumulate on the filter plate surface, leading to a decrease in filtration throughput and even clogging of the filter plate, severely impacting separation efficiency and the smooth operation of subsequent extraction processes. Therefore, it is essential to clean the impurities from the filter plate regularly.

[0004] Currently, cleaning impurities from filter plates mainly relies on manual operation: operators need to stop the machine, open the separation equipment, manually remove the filter plates, clean the surface impurities, and then reinstall them. This cleaning method has the following drawbacks: First, the cleaning process requires machine shutdown, leading to production interruption and reducing overall processing efficiency; second, the filter plates are usually located inside the equipment, making disassembly and assembly cumbersome and labor-intensive; third, the leachate has a certain degree of acidity and corrosiveness, posing safety hazards for direct manual contact; fourth, frequent manual disassembly and assembly can easily lead to filter plate damage or seal failure, affecting the equipment's service life and separation effect.

[0005] To address the aforementioned problems, existing technologies have proposed some improvements, such as installing a backwashing pipeline below the filter plate to rinse it by introducing cleaning fluid in reverse. However, this backwashing method can only remove some loosely attached impurities, and its effectiveness in cleaning compacted or embedded particles in the filter pores is limited. Furthermore, the impurities remain inside the equipment after rinsing, easily causing secondary deposition. Therefore, how to achieve efficient and automated cleaning of filter plates, avoiding the inefficiency and safety risks associated with manual operation, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to solve the technical problem that impurities on the filter plates in existing coal gangue acid leaching solution separation equipment need to be manually cleaned regularly, which is labor-intensive and inefficient.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a separation device for extracting metal elements from coal gangue, comprising a base, a reaction vessel fixedly connected to the top of the base, a connecting pipe fixedly connected to the bottom of the reaction vessel, a liquid pump installed on the outer wall of the connecting pipe, a separation box fixedly connected to one end of the connecting pipe, a drain pipe fixedly connected to the bottom of the separation box, a filter plate provided in the inner cavity of the separation box, and the filter plate being rinsed by a rinsing mechanism.

[0008] As a further embodiment of the present invention: the rinsing mechanism includes a mounting plate, which is fixedly connected to one side of the top of the base. A water inlet pipe is fixedly connected to the outer wall of the mounting plate, and a nozzle is installed at one end of the water inlet pipe. A motor is installed on the outer wall of the mounting plate below the water inlet pipe. The output end of the motor is connected to a first spur gear. A gear is slidably connected to the outer wall of the mounting plate, and the gear passes through the mounting plate and contacts the bottom end of the first spur gear. A guide rod is fixedly connected to the outer wall of the mounting plate away from the first spur gear. A movable seat is slidably connected to the outer wall of the guide rod. The gear is fixedly connected to the movable seat. A mounting frame is rotatably connected to the movable seat away from the gear. A connecting groove for the mounting frame to be inserted is opened on the outer wall of the separation box. A collection box is placed at the top of the base below the guide rod. The mounting frame is rotated by a flipping mechanism. The filter plate is installed on the mounting frame by the mounting mechanism.

[0009] As a further embodiment of the present invention: the flipping mechanism includes a sliding groove symmetrically formed on the outer wall of the movable seat; a toothed plate is fixedly connected to the outer wall of the guide rod; a top plate is fixedly connected to the outer wall of the guide rod above the toothed plate; a second spur gear is rotatably connected to the inner wall of the sliding groove; an installation shaft is fixedly connected between the two second spur gears; a first bevel gear is fixedly connected to the outer wall of the installation shaft; a second bevel gear is rotatably connected to the inner wall of the first bevel gear inside the movable seat; the second bevel gear is fixedly connected to the mounting frame; a pressing rod extending into the inner cavity of the sliding groove is slidably connected to the inner wall of the movable seat; a positioning block is slidably connected to one end of the pressing rod inside the movable seat; a first spring is connected between the positioning block and the movable seat; and one end of the positioning block contacts the top of the mounting frame.

[0010] As a further embodiment of the present invention: the mounting mechanism includes a mounting groove, the mounting groove being formed on the outer wall of the mounting frame, baffles being symmetrically fixedly connected to the inner wall of the mounting groove, a fixing block extending into the inner cavity of the mounting groove being slidably connected inside the mounting frame, a second spring being connected between the fixing block and the mounting frame, a third spur gear being rotatably connected inside the mounting frame at the bottom end of the fixing block, and a pushing block being slidably connected inside the mounting frame at the bottom end of the third spur gear, the pushing block extending out of the mounting frame.

[0011] As a further embodiment of the present invention: a first tooth groove is provided at the top of the rack, and the first tooth groove meshes with the first spur gear.

[0012] As a further embodiment of the present invention: the top and bottom ends of the guide rod are in contact with the top and bottom ends of the inner wall of the groove, respectively.

[0013] As a further embodiment of the present invention: a second tooth groove is provided at the top of the tooth plate, the second tooth groove meshes with the second spur gear, and the first bevel gear meshes with the second bevel gear.

[0014] As a further embodiment of the present invention: the top plate has symmetrical first inclined surfaces at both ends, and the bottom end of the top plate is higher than the top end of the second spur gear; the positioning block has a second inclined surface on one side, and the pressing rod is in contact with the second inclined surface.

[0015] As a further embodiment of the present invention: the outer wall of the filter plate is fitted with the inner wall of the mounting groove.

[0016] As a further embodiment of the present invention: the outer walls of the fixing block and the pushing block are provided with a third tooth groove, which meshes with the third spur gear.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a flipping mechanism and a rinsing mechanism, when the leachate passes through the filter plate, impurities remain at the top of the filter plate. During cleaning, the movable seat moves away from the separation box, causing the mounting frame and filter plate to move out of the separation box. When the second spur gear contacts the toothed plate, the mounting frame flips, and the filter plate rotates, causing some impurities to fall directly into the collection box. Afterward, the movable seat continues to move, and water is sprayed out through the nozzle to backwash the filter plate and rinse its surface, facilitating the automatic cleaning of impurities on the filter plate.

[0018] 2. By setting up an installation mechanism, when the filter plate moves out of the separation box, the installation frame flips over. At this time, the fixing block is located above the filter plate. The pushing block can be pushed to separate the fixing block from the filter plate, and the filter plate can be moved out of the installation slot. A new filter plate is placed into the installation slot, and the filter plate contacts the baffle. Then, the pushing block is released, and the fixing block moves to contact the filter plate. The baffle and the fixing block fix the filter plate in the installation slot, which facilitates the replacement of the filter plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation of the water inlet pipe of the present invention; Figure 3 This is a schematic diagram of the structure of the movable seat of the present invention; Figure 4 This is a schematic diagram of the connecting groove of the present invention; Figure 5 This is a schematic diagram of the installation of the second spur gear of the present invention; Figure 6 This is a cross-sectional view of the movable seat of the present invention; Figure 7 This is a schematic diagram of the installation of the positioning block of the present invention; Figure 8 This is a schematic diagram of the installation of the filter plate of the present invention.

[0020] In the diagram: 1. Base; 2. Reactor; 3. Connecting pipe; 4. Liquid pump; 5. Separation tank; 6. Drain pipe; 7. Mounting mechanism; 701. Mounting groove; 702. Baffle; 703. Fixing block; 704. Second spring; 705. Third spur gear; 706. Pushing block; 8. Flushing mechanism; 801. Mounting plate; 802. Water inlet pipe; 803. Nozzle; 804. Motor; 805. First spur gear; 80 6. Gear rack; 807. Movable seat; 808. Guide rod; 809. Mounting frame; 810. Connecting groove; 811. Collection box; 9. Tilting mechanism; 901. Slide groove; 902. Gear plate; 903. Second spur gear; 904. Mounting shaft; 905. First bevel gear; 906. Second bevel gear; 907. Top plate; 908. Pressing rod; 909. Positioning block; 910. First spring; 10. Filter plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this 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, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0023] Please see Figures 1 to 8 In this embodiment of the invention, a separation device for extracting metal elements from coal gangue includes a base 1, a reaction vessel 2 fixedly connected to the top of the base 1, a connecting pipe 3 fixedly connected to the bottom of the reaction vessel 2, a liquid pump 4 installed on the outer wall of the connecting pipe 3, a separation box 5 fixedly connected to one end of the connecting pipe 3, a drain pipe 6 fixedly connected to the bottom of the separation box 5, a filter plate 10 provided in the inner cavity of the separation box 5, and the filter plate 10 being rinsed by a rinsing mechanism 8.

[0024] The rinsing mechanism 8 includes a mounting plate 801, which is fixedly connected to one side of the top of the base 1. A water inlet pipe 802 is fixedly connected to the outer wall of the mounting plate 801. A nozzle 803 is installed at one end of the water inlet pipe 802. A motor 804 is installed on the outer wall of the mounting plate 801 below the water inlet pipe 802. A first spur gear 805 is connected to the output end of the motor 804. A gear 806 is slidably connected to the outer wall of the mounting plate 801, passing through the mounting plate 801 and contacting the bottom end of the first spur gear 805. A guide rod 808 is fixedly connected to the side of the wall away from the first spur gear 805. A movable seat 807 is slidably connected to the outer wall of the guide rod 808. The rack 806 is fixedly connected to the movable seat 807. A mounting frame 809 is rotatably connected to the side of the movable seat 807 away from the rack 806. A connecting groove 810 is opened on the outer wall of the separation box 5 for the mounting frame 809 to be inserted. A collection box 811 is placed at the top of the base 1 below the guide rod 808. The mounting frame 809 is rotated by the flipping mechanism 9. The filter plate 10 is mounted on the mounting frame 809 by the mounting mechanism 7.

[0025] In this embodiment: In the reaction vessel 2, the metal oxides such as gallium and germanium in the coal gangue are dissolved by acid through heating and pressurization to generate soluble salts and obtain leachate. The liquid pump 4 is started and the leachate enters the separation tank 5 through the connecting pipe 3. When the leachate passes through the filter plate 10, the impurities remain at the top of the filter plate 10. The liquid passes through the filter plate 10 and is discharged through the drain pipe 6 to obtain a gallium-containing solution. When it is necessary to clean the impurities on the filter plate 10, the motor 804 is started. The motor 804 drives the first spur gear 805 to rotate. The rotation of the first spur gear 805 drives the rack 806 to move. The movement of the rack 806 drives the movable seat 807 to move. The movable seat 807 slides along the guide rod 808. The movement of the movable seat 807 drives the mounting frame 809 to move synchronously. The mounting frame 809 moves out of the connecting groove 810, thereby driving the filter plate 10 to move out synchronously. One end of the water inlet pipe 802 is connected to the water storage equipment, and a water pump is installed on its outer wall.

[0026] Please refer to this carefully. Figures 5 to 7The flipping mechanism 9 includes a slide groove 901 symmetrically formed on the outer wall of the movable seat 807. A toothed plate 902 is fixedly connected to the outer wall of the guide rod 808. A top plate 907 is fixedly connected to the outer wall of the guide rod 808 above the toothed plate 902. A second spur gear 903 is rotatably connected to the inner wall of the slide groove 901. A mounting shaft 904 is fixedly connected between the two second spur gears 903. A first bevel gear 905 is fixedly connected to the outer wall of the mounting shaft 904. The movable seat 807... A second bevel gear 906 is rotatably connected to the outer wall of the first bevel gear 905. The second bevel gear 906 is fixedly connected to the mounting frame 809. A pressing rod 908 extending into the inner cavity of the slide groove 901 is slidably connected inside the movable seat 807. A positioning block 909 is slidably connected to one end of the pressing rod 908 inside the movable seat 807. A first spring 910 is connected between the positioning block 909 and the movable seat 807. One end of the positioning block 909 is in contact with the top of the mounting frame 809.

[0027] In this embodiment: when the filter plate 10 slides out of the separation box 5, the movable seat 807 slides along the guide rod 808, and the guide rod 808 slides in the slide groove 901. When the second spur gear 903 contacts the toothed plate 902, the second spur gear 903 slides along the toothed plate 902 and rotates. The rotation of the second spur gear 903 drives the mounting shaft 904 to rotate, and the rotation of the mounting shaft 904 drives the first bevel gear 905 to rotate. The rotation of the first bevel gear 905 drives the mounting frame 809 to rotate. After the second spur gear 903 separates from the toothed plate 902, the mounting frame 809 rotates 180 degrees. Whenever the second spur gear 903 approaches the tooth plate 902, the pressing rod 908 first contacts the top plate 907. The pressing rod 908 is displaced by the force, and the displacement of the pressing rod 908 pushes the positioning block 909 to move, causing compression on the first spring 910. The positioning block 909 is displaced and separates from the mounting frame 809, thus removing the fixation on the mounting frame 809 and allowing the mounting frame 809 to rotate. When the second spur gear 903 separates from the tooth plate 902, the pressing rod 908 separates from the top plate 907, and the positioning block 909 is displaced by the elastic force of the first spring 910. The positioning block 909 contacts the top of the mounting frame 809, thereby preventing the mounting frame 809 from rotating.

[0028] Please refer to this carefully. Figure 8The mounting mechanism 7 includes a mounting groove 701, which is formed on the outer wall of the mounting frame 809. A baffle 702 is symmetrically fixedly connected to the inner wall of the mounting groove 701. A fixing block 703 extending into the inner cavity of the mounting groove 701 is slidably connected inside the mounting frame 809. A second spring 704 is connected between the fixing block 703 and the mounting frame 809. A third spur gear 705 is rotatably connected inside the mounting frame 809 at the bottom end of the fixing block 703. A push block 706 is slidably connected inside the mounting frame 809 at the bottom end of the third spur gear 705. The push block 706 extends out of the mounting frame 809.

[0029] In this embodiment: after the filter plate 10 is displaced out of the separation box 5, the mounting frame 809 flips over. At this time, the fixing block 703 is located above the filter plate 10, which can push the pushing block 706 towards the mounting groove 701. The displacement of the pushing block 706 drives the third spur gear 705 to rotate. The rotation of the third spur gear 705 drives the fixing block 703 to move, compressing the second spring 704. After the fixing block 703 separates from the filter plate 10, the filter plate 10 can be displaced out of the mounting groove 701, and a new filter plate 10 can be placed into the mounting groove 701. The filter plate 10 then contacts the baffle 702. Then, the push block 706 is released, and the fixing block 703 is displaced by the elastic force of the second spring 704. The fixed block 703 is displaced and contacts the filter plate 10. The baffle 702 and the fixing block 703 fix the filter plate 10 in the mounting groove 701. When the mounting frame 809 drives the filter plate 10 back into the separation box 5, the bottom end of the push block 706 contacts the outer wall of the separation box 5, so that the push block 706 cannot be displaced in the direction of the mounting groove 701, thereby reinforcing the filter plate 10, preventing the filter plate 10 from loosening during use, and facilitating the replacement of the filter plate 10.

[0030] Please refer to this carefully. Figures 2 to 4 The top end of the rack 806 is provided with a first tooth groove, which meshes with the first spur gear 805.

[0031] In this embodiment: the motor 804 drives the first spur gear 805 to rotate, the rotation of the first spur gear 805 drives the rack 806 to move, the displacement of the rack 806 drives the movable seat 807 to move, the movable seat 807 slides along the guide rod 808, and the displacement of the movable seat 807 drives the mounting frame 809 to move synchronously.

[0032] Please refer to this carefully. Figures 5 to 7 The top and bottom of the guide rod 808 are in contact with the top and bottom of the inner wall of the slide groove 901, respectively.

[0033] In this embodiment: when the filter plate 10 slides out of the separation box 5, the movable seat 807 slides along the guide rod 808, and the guide rod 808 slides in the slide groove 901 to limit the movement direction of the movable seat 807.

[0034] Please refer to this carefully. Figures 5 to 7 The top of the toothed plate 902 is provided with a second tooth groove, which meshes with the second spur gear 903, and the first bevel gear 905 meshes with the second bevel gear 906.

[0035] In this embodiment: when the second spur gear 903 contacts the toothed plate 902, the second spur gear 903 slides along the toothed plate 902 and rotates. The rotation of the second spur gear 903 drives the mounting shaft 904 to rotate. The rotation of the mounting shaft 904 drives the first bevel gear 905 to rotate. The rotation of the first bevel gear 905 drives the mounting frame 809 to rotate.

[0036] Please refer to this carefully. Figures 5 to 7 The top plate 907 has symmetrical first inclined surfaces at both ends, and the bottom height of the top plate 907 is higher than the top height of the second spur gear 903.

[0037] In this embodiment: whenever the second spur gear 903 approaches the tooth plate 902, the pressing rod 908 first contacts the top plate 907, the pressing rod 908 is displaced by force, and never contacts the top plate 907 during the movement of the second spur gear 903.

[0038] Please refer to this carefully. Figures 5 to 7 The positioning block 909 has a second inclined surface on one side, and the extrusion rod 908 is in contact with the second inclined surface.

[0039] In this embodiment: the displacement of the compression rod 908 pushes the positioning block 909 to move, causing compression on the first spring 910. The positioning block 909 is displaced and separated from the mounting frame 809, thus removing the fixation of the mounting frame 809 and allowing the mounting frame 809 to rotate.

[0040] Please refer to this carefully. Figure 8 The outer wall of the filter plate 10 is in contact with the inner wall of the mounting groove 701.

[0041] In this embodiment: a new filter plate 10 is placed into the mounting groove 701, and the filter plate 10 contacts the baffle 702. Then the push block 706 is released, and the fixing block 703 is displaced by the elastic force of the second spring 704. The fixing block 703 is displaced and contacts the filter plate 10. The baffle 702 and the fixing block 703 fix the filter plate 10 in the mounting groove 701.

[0042] Please refer to this carefully. Figure 8The outer walls of the fixing block 703 and the pushing block 706 are provided with a third tooth groove, which meshes with the third spur gear 705.

[0043] In this embodiment: the push block 706 is moved toward the mounting groove 701, the displacement of the push block 706 drives the third spur gear 705 to rotate, the rotation of the third spur gear 705 drives the fixed block 703 to move, and compresses the second spring 704.

[0044] Working principle: When the leachate passes through the filter plate 10, impurities remain at the top of the filter plate 10. During cleaning, the movable seat 807 moves away from the separation box 5, causing the mounting frame 809 and the filter plate 10 to move out of the separation box 5. When the second spur gear 903 contacts the toothed plate 902, the mounting frame 809 flips over, and the filter plate 10 rotates, causing some impurities to fall directly into the collection box 811. Then, the movable seat 807 continues to move, and water is sprayed out through the nozzle 803 to backwash the filter plate 10 and rinse its surface. After cleaning, the movable seat 807 moves the filter plate 10 towards the separation box 5 again. At this time, the filter plate 10 flips and resets again before entering the separation box 5, facilitating automatic cleaning of impurities on the filter plate 10.

[0045] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A separation device for extracting metallic elements from coal gangue, characterized in that, The system includes a base (1), a reaction vessel (2) is fixedly connected to the top of the base (1), a connecting pipe (3) is fixedly connected to the bottom of the reaction vessel (2), a liquid pump (4) is installed on the outer wall of the connecting pipe (3), a separation tank (5) is fixedly connected to one end of the connecting pipe (3), a drain pipe (6) is fixedly connected to the bottom of the separation tank (5), a filter plate (10) is provided in the inner cavity of the separation tank (5), and the filter plate (10) is rinsed by a rinsing mechanism (8).

2. The separation device for extracting metal elements from coal gangue according to claim 1, characterized in that, The rinsing mechanism (8) includes a mounting plate (801), which is fixedly connected to one side of the top of the base (1). A water inlet pipe (802) is fixedly connected to the outer wall of the mounting plate (801). A nozzle (803) is installed at one end of the water inlet pipe (802). A motor (804) is installed on the outer wall of the mounting plate (801) below the water inlet pipe (802). A first spur gear (805) is connected to the output end of the motor (804). A gear rack (806) is slidably connected to the outer wall of the mounting plate (801). The gear rack (806) passes through the mounting plate (801) and contacts the bottom end of the first spur gear (805). A guide rod (808) is fixedly connected to the side of the outer wall away from the first spur gear (805). A movable seat (807) is slidably connected to the outer wall of the guide rod (808). The rack (806) is fixedly connected to the movable seat (807). A mounting frame (809) is rotatably connected to the side of the movable seat (807) away from the rack (806). A connecting groove (810) for the mounting frame (809) to be inserted is opened on the outer wall of the separation box (5). A collection box (811) is placed at the top of the base (1) below the guide rod (808). The mounting frame (809) is rotated by a flipping mechanism (9). The filter plate (10) is mounted on the mounting frame (809) by a mounting mechanism (7).

3. A separation device for extracting metal elements from coal gangue according to claim 2, characterized in that, The flipping mechanism (9) includes a slide groove (901), which is symmetrically opened on the outer wall of the movable seat (807). A toothed plate (902) is fixedly connected to the outer wall of the guide rod (808). A top plate (907) is fixedly connected to the outer wall of the guide rod (808) above the toothed plate (902). A second spur gear (903) is rotatably connected to the inner wall of the slide groove (901). An installation shaft (904) is fixedly connected between the two second spur gears (903). A first bevel gear (905) is fixedly connected to the outer wall of the installation shaft (904). The inner wall of the movable seat (807) is... A second bevel gear (906) is rotatably connected to the outer wall of the first bevel gear (905). The second bevel gear (906) is fixedly connected to the mounting frame (809). A pressing rod (908) extending into the inner cavity of the slide groove (901) is slidably connected inside the movable seat (807). A positioning block (909) is slidably connected to one end of the pressing rod (908) inside the movable seat (807). A first spring (910) is connected between the positioning block (909) and the movable seat (807). One end of the positioning block (909) is in contact with the top of the mounting frame (809).

4. A separation device for extracting metal elements from coal gangue according to claim 3, characterized in that, The mounting mechanism (7) includes a mounting groove (701), which is opened on the outer wall of the mounting frame (809). A baffle (702) is symmetrically fixedly connected to the inner wall of the mounting groove (701). A fixing block (703) extending into the inner cavity of the mounting frame (809) is slidably connected to the inside of the mounting frame (809). A second spring (704) is connected between the fixing block (703) and the mounting frame (809). A third spur gear (705) is rotatably connected to the bottom end of the fixing block (703) inside the mounting frame (809). A push block (706) is slidably connected to the bottom end of the third spur gear (705) inside the mounting frame (809). The push block (706) extends out of the mounting frame (809).

5. A separation device for extracting metal elements from coal gangue according to claim 2, characterized in that, The top end of the rack (806) is provided with a first tooth groove, which meshes with the first spur gear (805).

6. A separation device for extracting metal elements from coal gangue according to claim 3, characterized in that, The top and bottom ends of the guide rod (808) are in contact with the top and bottom ends of the inner wall of the groove (901), respectively.

7. A separation device for extracting metal elements from coal gangue according to claim 3, characterized in that, The top of the toothed plate (902) is provided with a second tooth groove, which meshes with the second spur gear (903), and the first bevel gear (905) meshes with the second bevel gear (906).

8. A separation device for extracting metal elements from coal gangue according to claim 3, characterized in that, The top plate (907) has a first inclined surface symmetrically opened at both ends, and the bottom end of the top plate (907) is higher than the top end of the second spur gear (903); the positioning block (909) has a second inclined surface opened on one side, and the pressing rod (908) is in contact with the second inclined surface.

9. A separation device for extracting metal elements from coal gangue according to claim 4, characterized in that, The outer wall of the filter plate (10) is in contact with the inner wall of the mounting groove (701).

10. A separation device for extracting metal elements from coal gangue according to claim 4, characterized in that, The outer walls of the fixed block (703) and the pushing block (706) are provided with a third tooth groove, which meshes with the third spur gear (705).

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