A method and apparatus for extracting quartz products from quartz-type fluorite ore

Abstract

This invention discloses a method and apparatus for extracting quartz products from quartz-type fluorite ore, belonging to the field of ore processing. The method and apparatus for extracting quartz products from quartz-type fluorite ore includes a crusher, a conveying and screening device, a crushed stone collection device, a first flotation device, a second flotation device, a quartz extraction device, and a magnetic separation device. The output end of the crusher is connected to the conveying and screening device; the conveying and screening device is connected to the input end of the crushed stone collection device; the output end of the crushed stone collection device is connected to the input end of the first flotation device; the output end of the first flotation device is connected to the input end of the second flotation device; the output end of the second flotation device is connected to the input end of the quartz extraction device; and the output end of the quartz extraction device is connected to the input end of the magnetic separation device. The entire equipment and production process improve the efficiency of quartz extraction and also increase the utilization rate of tailings, saving resources and reducing environmental pollution.

Description

Technical Field

[0001] This invention belongs to the field of ore processing, and more specifically, relates to a method and apparatus for extracting quartz products from quartz-type fluorite ore. Background Technology

[0002] Quartz is a common mineral with wide applications. Quartz-type fluorite ore is a type of ore containing quartz and calcium fluoride, among other components. Quartz, as a key ore component, has high commercial value. However, since fluorite is the main component of quartz-type fluorite ore, the tailings containing quartz are usually discarded after fluorite extraction. The large-scale stockpiling of tailings not only occupies significant amounts of land and wastes mineral resources but also causes serious environmental pollution. This is because the vast majority of tailings contain useful components that can be recovered under current economic and technological conditions. Due to limitations in mineral processing technology and equipment at the time, or because of inadequate processing procedures, the recovery rate was low, resulting in a large amount of useful components remaining in the tailings, leading to a tremendous waste of resources. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method and apparatus for extracting quartz products from quartz-type fluorite ore, which can realize the extraction of quartz from quartz-type fluorite ore.

[0004] This invention discloses a method and apparatus for extracting quartz products from quartz-type fluorite ore, comprising a crusher, a conveying and screening device, a crushed stone collection device, a first flotation device, a second flotation device, a quartz extraction device, and a magnetic separation device; the output end of the crusher is connected to the conveying and screening device; the conveying and screening device is connected to the input end of the crushed stone collection device; the output end of the crushed stone collection device is connected to the input end of the first flotation device; the output end of the first flotation device is connected to the input end of the second flotation device; the output end of the second flotation device is connected to the input end of the quartz extraction device; and the output end of the quartz extraction device is connected to the input end of the magnetic separation device.

[0005] The crusher is used to crush quartz-type fluorite ore into crushed stone; the conveying and screening device is used to screen crushed stone of different sizes; the crushed stone collection device is used to collect crushed stone that meets the requirements; the first flotation device is used to float fluorite in quartz-type fluorite ore to obtain quartz-containing ore; the second flotation device is used to float quartz in quartz-containing ore to obtain ore with a higher quartz content; the quartz extraction device is used to extract quartz crystals; and the magnetic separation device is used to purify quartz crystals.

[0006] As a further improvement of the present invention, the conveying and screening device includes two conveying shafts, a conveyor belt, and stop blocks; the conveyor belt is provided with a plurality of screen holes; the screen holes are of the same size and are evenly arranged; the conveyor belt surrounds the two conveying shafts; stop blocks are respectively provided on opposite sides of the two conveying shafts; the stop blocks are used to clean up the gravel remaining on the conveyor belt and prevent it from affecting the operation of the conveying shafts; the aperture of the screen holes is less than 5 mm.

[0007] As a further improvement of the present invention, the quartz extraction device includes a reaction tank; the reaction tank includes a first reaction tank and a second reaction tank; the first reaction tank is used to dissolve quartz particles containing impurities; the second reaction tank is used to precipitate quartz crystals.

[0008] As a further improvement of the present invention, the quartz extraction apparatus further includes a separator; the separator includes a first separator and a second separator; the first separator is used to separate impurities in the quartz slurry dissolved in the first reaction tank; the second separator is used to separate and extract the quartz crystals precipitated in the second reaction tank from the solution.

[0009] As a further improvement of the present invention, the second separator includes a hopper and a shell; support frames are fixedly provided on the left and right sides below the shell; the upper left side of the shell is fixedly installed with the hopper; the hopper and the interior of the shell are connected and penetrate each other; a first rotating shaft is slidably connected through the left and right sides of the shell; a water outlet is provided at the lower end of the shell; a water receiving tank is fixedly provided below the water outlet; the water receiving tank is used to collect the solution separated from the quartz crystal.

[0010] As a further improvement of the present invention, the second separator further includes a screen, a first rotating shaft, a first motor, a second rotating shaft, and a second motor; the output end of the first motor is rotatably connected to one end of the first rotating shaft; the first motor drives the first rotating shaft to rotate; the output end of the second motor is rotatably connected to one end of the second rotating shaft; the second motor drives the second rotating shaft to rotate; the second separator further includes a discharge port; the discharge port is located on the lower side of the end of the outer shell away from the hopper; the discharge port penetrates the outer shell and is electrically connected to the interior of the outer shell.

[0011] A spiral blade is fixedly arranged on the outer periphery of the first rotating shaft to form a spiral conveying device; bristles are fixedly arranged on the outer periphery of the spiral blade on the side away from the first rotating shaft; a screen is sleeved on the outer periphery of the spiral conveying device; the length of the screen is less than the length of the spiral conveying device; both ends of the spiral conveying device are not wrapped in the screen; one exposed end of the spiral conveying device is located below the hopper; the other exposed end of the spiral conveying device is located above the discharge port.

[0012] Several baffles are fixedly installed on the outer periphery of the screen; the baffles are in the shape of a ring; the side of the baffle away from the screen is slidably connected to the inner side wall of the outer shell; a rotating seat is fixedly installed at the end of the screen away from the hopper; the rotating seat is fixedly connected to the end of the second rotating shaft away from the second motor; the second motor drives the rotating seat to drive the screen to rotate.

[0013] As a further improvement of the present invention, the rotational speed of the first motor is different from that of the second motor; optionally, the rotational speed of the first motor is less than that of the second motor; the screen and brush bristles are made of tough materials.

[0014] As a further improvement of the present invention, a vibrator is fixedly installed at the end of the first rotating shaft away from the first motor; the vibrator vibrates at a certain frequency, and the vibration is transmitted from the first rotating shaft to the brush bristles through the spiral blades, causing the residual quartz crystals on the brush bristles to fall off.

[0015] A method for extracting quartz products from quartz-type fluorite ore, using any of the aforementioned apparatus for extracting quartz products from quartz-type fluorite ore; comprising at least steps S1 to S6:

[0016] S1: Grinding: Crushing and screening quartz-type fluorite ore to remove impurities and particles that do not meet the size requirements;

[0017] The quartz-type fluorite ore is crushed using a crusher to obtain crushed stone, which is then screened by a conveying and screening device. The crushed stone that meets the particle size requirements after screening is conveyed into the first flotation device.

[0018] S2: Initial roughing: The first flotation reagent is added to the first flotation unit, and the pH value is adjusted; the pretreated crushed stone from S1 is mixed with the first flotation reagent in the first flotation unit. The crushed stone and the first flotation reagent are stirred and mixed by adjusting the reagent ratio and the working state of the stirring device in the first flotation unit to achieve the separation of quartz from fluorite and other ore components; finally, the fluorite particles that float to the surface are collected; the slurry containing quartz is transferred to the second flotation unit.

[0019] The pH inside the first flotation unit is 8-9.5; the temperature inside the first flotation unit is controlled at 30-40℃.

[0020] The first flotation reagent system consists of 1500 g / t of oleic acid, 600 g / t of sodium carbonate, and 400 g / t of sodium silicate; sodium carbonate is used as a modifier, sodium silicate as a depressant, and oleic acid as a collector; sodium silicate forms a complex or adsorption layer on the surface of quartz, thereby separating quartz and fluorite.

[0021] S3: Second roughing: A second flotation agent is added to the second flotation device; the quartz-containing slurry from the first flotation device is mixed with the second flotation agent in the second flotation device; the crushed stone and the first flotation agent are stirred and mixed by adjusting the reagent ratio and the working state of the stirring device in the first flotation device to separate quartz from other ore components; finally, the quartz particles that float to the surface are collected; the ore with a high quartz content is sent to the quartz extraction device;

[0022] S4: Acid Washing: Ores with a high quartz content are fed into the first reaction tank of the quartz extraction device. The quartz particles obtained from flotation are mixed with a suitable acidic solvent in the reaction tank and heated to dissolve the quartz particles. The dissolved quartz slurry is filtered out using the first separator and then sent to the second reaction tank. Then, by adjusting the temperature and pressure, the quartz in the solution is redeferred to form quartz particles. The solvent and quartz particles are separated using the second separator. The separated quartz crystals are sent to a magnetic separation device.

[0023] S5: Magnetic separation: Quartz particles are fed into a magnetic separation device; pure quartz particles are separated; the quartz particles are dried to obtain a dried quartz product.

[0024] S6: Particle size classification: Dry quartz particles are classified by using a sieving device to classify the quartz particles according to different particle size ranges.

[0025] As a further improvement of the present invention, in step S4, the second separator operates continuously; while the quartz crystal is conveyed by the spiral conveyor, the quartz crystal and the solution are separated by centrifugation using a sieve.

[0026] Compared to existing technologies, the advantages of this invention are as follows: The present invention provides a device for extracting quartz from quartz-type fluorite ore, comprising a conveying and screening device, a crushed stone collection device, a first flotation device, a second flotation device, a quartz extraction device, and a magnetic separation device. The output end of the crusher is connected to the conveying and screening device; the conveying and screening device is connected to the input end of the crushed stone collection device; the output end of the crushed stone collection device is connected to the input end of the first flotation device; the output end of the first flotation device is connected to the input end of the second flotation device; the output end of the second flotation device is connected to the input end of the quartz extraction device; and the output end of the quartz extraction device is connected to the input end of the magnetic separation device. The crusher is used to crush the quartz-type fluorite ore to obtain crushed stone; the conveying and screening device is used to screen crushed stone of different sizes; the crushed stone collection device is used to collect crushed stone that meets the requirements; the first flotation device is used to flotate fluorite in the quartz-type fluorite ore to obtain quartz-containing ore; and the second flotation device is used to flotate quartz in the quartz-containing ore to obtain quartz-containing ore. The process involves using ore with a high quartz content; a quartz extraction device for extracting quartz crystals; a magnetic separation device for purifying the quartz crystals; and a separator, comprising a first separator and a second separator. The first separator separates impurities from the quartz slurry dissolved in the first reaction tank. The second separator separates and extracts the quartz crystals precipitated in the second reaction tank from the solution. The second separator is equipped with a screen, a spiral conveyor, a first motor, and a second motor. The first motor drives the spiral conveyor to transport the quartz crystals. The second motor drives the screen to rotate, generating centrifugal force to dry the quartz crystals, thus separating them from the solution. Throughout the operation, the separation of quartz and solution, as well as the transport of quartz crystals, are synchronized. The spiral conveyor is also equipped with brushes to clean the screen holes while transporting the quartz crystals, preventing screen clogging and improving the overall efficiency of quartz extraction. This also increases the utilization rate of tailings, saving resources and reducing environmental pollution.

[0027] In the method for extracting quartz products using the apparatus for extracting quartz products from quartz-type fluorite ore according to the present invention: the separation, transportation, and screening of crushed stone are directly carried out using a conveyor screening device; crushed stone that does not meet the size requirements is directly transported back to the crusher for further grinding by the conveyor screening device; during the quartz extraction process: the second separator combines centrifugation and transportation; while centrifuging to extract quartz crystals, it also transports the quartz crystals away from the quartz extraction device, improving the efficiency of the entire process; and the spiral conveyor device is also equipped with bristles; while transporting the quartz crystals, it cleans the holes of the screen, thus preventing screen clogging. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the quartz extraction process of the present invention;

[0029] Figure 2This is a schematic diagram of the quartz extraction device of the present invention;

[0030] Figure 3 This is a schematic diagram of the conveying and screening device of the present invention;

[0031] Figure 4 This is a schematic diagram of the second separator structure of the present invention;

[0032] Figure 5 This is a partial structural diagram of the spiral conveyor device of the present invention.

[0033] Explanation of the labels in the diagram:

[0034] 1. Crusher; 2. Conveying and screening device; 21. Screen hole; 22. Stop; 3. Crushed stone collection equipment; 4. First flotation device; 5. Second flotation device; 6. Fluorite collection device; 7. Tailings collection device; 8. Quartz extraction device; 81. Second separation device; 811. Hopper; 812. Shell; 813. Screen; 814. First rotating shaft; 815. Discharge port; 816. Second rotating shaft; 817. Spiral blade; 818. Brush; 9. Magnetic separation equipment; 10. Quartz collection device. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0036] Specific Implementation Example 1: Please refer to... Figure 1-5 An apparatus for extracting quartz products from quartz-type fluorite ore includes a crusher 1, a conveying and screening device 2, a crushed stone collection device 3, a first flotation device 4, a second flotation device 5, a quartz extraction device 8, a magnetic separation device 9, and a quartz collection device 10. The output end of the crusher 1 is connected to the conveying and screening device 2; the conveying and screening device 2 is connected to the input end of the crushed stone collection device 3; the output end of the crushed stone collection device 3 is connected to the input end of the first flotation device 4; the output end of the first flotation device 4 is connected to the input end of the second flotation device 5; the output end of the second flotation device 5 is connected to the input end of the quartz extraction device 8; the output end of the quartz extraction device 8 is connected to the input end of the magnetic separation device 9; and the output end of the magnetic separation device 9 is connected to the quartz collection device 10.

[0037] Crusher 1 is used to crush quartz-type fluorite ore to obtain crushed stone.

[0038] The conveying and screening device 2 is used to screen gravel of different sizes.

[0039] The gravel collection device 3 is used to collect gravel that meets the requirements.

[0040] The first flotation device 4 is used to flotate fluorite in quartz-type fluorite ore to obtain quartz-containing ore.

[0041] The second flotation device 5 is used to float quartz in quartz-containing ores to obtain ores with a high quartz content.

[0042] Quartz extraction device 8 is used to extract quartz crystals.

[0043] Magnetic separator 9 is used to purify quartz crystals.

[0044] Quartz collecting device 10 is used to collect quartz concentrate.

[0045] The crusher 1 crushes the quartz-type fluorite ore to obtain crushed stone; preferably, the crushed particle size of the ore is less than 5mm; the crushed ore is poured into a hopper provided above the conveying and screening device 2, and conveyed from the hopper to the conveying and screening device 2; a crushed stone collection device 3 is provided below the conveying and screening device 2.

[0046] The conveying and screening device 2 includes two conveying shafts, a conveyor belt 21, and a stop block 22; the conveyor belt 21 is provided with a plurality of sieve holes 211; as shown in the figure Figure 3 As shown, the conveyor belt 21 is provided with a plurality of sieve holes 211; the sieve holes 211 are of the same size and are evenly arranged; the conveyor belt 21 is formed by surrounding two conveyor shafts; a stop block 22 is provided on one side of each of the two conveyor shafts; the stop block 22 is used to clean up the gravel remaining on the conveyor belt 21 to prevent it from affecting the operation of the conveyor shafts; the aperture of the sieve holes 211 is less than 5mm.

[0047] After being screened by the conveying and screening device 2, the crushed stone that can pass through the screen hole 211 smoothly enters the crushed stone collection device 3; the crushed stone that cannot pass through the screen hole 211 smoothly enters the coarse ore collection device set at the output end of the conveying and screening device 2, and is conveyed back to the crusher 1 from the coarse ore collection device to continue the crushing operation.

[0048] The quartz extraction device 8 is equipped with a reaction tank and a separator; the reaction tank includes a first reaction tank and a second reaction tank; the separator includes a first separator and a second separator 81; the first reaction tank is used to dissolve quartz particles containing impurities; the second reaction tank is used to precipitate quartz crystals; the first separator is used to separate impurities from the quartz slurry dissolved in the first reaction tank; the second separator 81 is used to separate and extract the quartz crystals precipitated in the second reaction tank from the solution.

[0049] The second separator 81 includes a hopper 811, a housing 812, a screen 813, a first rotating shaft 814, a first motor, a second rotating shaft 816, and a second motor. Support frames are fixedly installed on the left and right sides below the housing 812. The upper left side of the housing 812 is fixedly installed to the hopper 811. The hopper 811 and the housing 812 are connected and penetrate each other. The first rotating shaft 814 is slidably connected through the left and right sides of the housing 812. A water outlet is provided at the lower end of the housing 812. A water receiving tank is fixedly installed below the water outlet. The water receiving tank is used to collect the solution separated from the quartz crystal.

[0050] The output end of the first motor is rotatably connected to one end of the first rotating shaft 814; the first motor drives the first rotating shaft 814 to rotate; the output end of the second motor is rotatably connected to one end of the second rotating shaft 816; the second motor drives the second rotating shaft 816 to rotate.

[0051] The second separator 81 also includes a discharge port 815; the discharge port 815 is located on the lower side of the end of the outer shell 812 away from the hopper 811; the discharge port 815 penetrates the outer shell 812 and is electrically connected to the interior of the outer shell 812.

[0052] A spiral blade 817 is fixedly arranged on the outer periphery of the first rotating shaft 814 to form a spiral conveying device; bristles 818 are fixedly arranged on the outer periphery of the spiral blade 817 on the side away from the first rotating shaft 814; a screen 813 is sleeved on the outer periphery of the spiral conveying device; the length of the screen 813 is less than the length of the spiral conveying device; both ends of the spiral conveying device are not wrapped in the screen 813; one exposed end of the spiral conveying device is located below the hopper 811; the other exposed end of the spiral conveying device is located above the discharge port 815.

[0053] A plurality of baffles are fixedly provided on the outer periphery of the screen 813; the baffles are in the shape of a ring; the side of the baffle away from the screen 813 is slidably connected to the inner side wall of the outer shell 812; a rotating seat is fixedly provided at the end of the screen 813 away from the hopper 811; the rotating seat is fixedly connected to the end of the second rotating shaft 816 away from the second motor; the second motor drives the rotating seat to drive the screen 813 to rotate.

[0054] The outer casing 812 is fitted around the screen 813 and the spiral conveyor; one end of the first rotating shaft 814 passes through one side of the outer casing 812 and is rotatably connected to the output end of the first motor; the other end of the first rotating shaft 814 passes through the rotating seat and is slidably connected; the rotating seat is rotatably connected to the inner wall of the outer casing 812.

[0055] Preferably, the rotational speed of the first motor is different from that of the second motor; alternatively, the rotational speed of the first motor is less than that of the second motor.

[0056] Preferably, the bristles 818 are made of a tough material.

[0057] Preferably, the screen 813 is made of a tough material.

[0058] Preferably, a vibrator is fixedly installed at the end of the first rotating shaft 814 away from the first motor; the vibrator vibrates at a certain frequency, and the vibration is transmitted from the first rotating shaft 814 to the brush bristles 818 through the spiral blades 817, causing the quartz crystals remaining on the brush bristles 818 to fall off.

[0059] Optionally, the output end of the water receiving tank is connected to the first reaction tank; the solution collected in the water receiving tank is returned to the first reaction tank to continue the acid washing of the quartz crystal.

[0060] A method for extracting quartz products from quartz-type fluorite ore, comprising steps S1 to S6:

[0061] S1: Grinding (ore pretreatment): Crushing and screening quartz-type fluorite ore to remove impurities and particles that do not meet the size requirements.

[0062] The quartz-type fluorite ore is crushed by crusher 1 to obtain crushed stone, and then the crushed stone is screened by conveying and screening device 2. The crushed stone that meets the particle size requirements after screening is conveyed into the first flotation device 4.

[0063] S2: Initial roughing (flotation separation): The first flotation agent is added to the first flotation device 4, and the pH value is adjusted; the pretreated crushed stone from S1 is mixed with the first flotation agent in the first flotation device 4. The crushed stone and the first flotation agent are stirred and mixed by adjusting the reagent ratio and the working state of the stirring device in the first flotation device 4 to achieve the separation of quartz from other mineral components such as fluorite; finally, the fluorite particles that float to the surface are collected; the slurry containing quartz is transferred to the second flotation device 5.

[0064] The pH inside the first flotation device 4 is 8-9.5; the temperature inside the first flotation device 4 is controlled at 30-40℃; preferably, the pH inside the first flotation device 4 is 8.5.

[0065] The first flotation reagent system consists of 1500 g / t of oleic acid, 600 g / t of sodium carbonate (pH = 8.01), and 400 g / t of sodium silicate; sodium carbonate is used as a modifier, sodium silicate as a depressant, and oleic acid as a collector; sodium silicate forms a complex or adsorption layer on the surface of quartz, thereby separating quartz and fluorite.

[0066] S3: Second roughing (flotation separation): The second flotation agent is added to the second flotation device 5; the quartz-containing slurry from the first flotation device 4 is mixed with the second flotation agent in the second flotation device 5; the crushed stone and the first flotation agent are stirred and mixed by adjusting the reagent ratio and the working state of the stirring device in the first flotation device 4 to achieve the separation of quartz from other ore components; finally, the quartz particles that float to the surface are collected; the ore with a high quartz content is sent to the quartz extraction device 8.

[0067] S4: Refining 1 (Acid Washing): The ore with a high quartz content is fed into the first reaction tank of the quartz extraction device 8. The quartz particles obtained by flotation are mixed with an appropriate acidic solvent in the reaction tank and heated to dissolve the quartz particles. The dissolved quartz slurry is filtered out using the first separator and then sent to the second reaction tank. Then, by adjusting the temperature and pressure, the quartz in the solution is re-precipitated to form quartz particles.

[0068] The solvent and quartz particles are separated using a second separator; the separated quartz crystals are then fed into magnetic separation device 9.

[0069] S5: Fine Selection 2 (Magnetic Separation): Quartz particles are fed into magnetic separator 9; pure quartz particles are separated; then, the quartz particles are dried to obtain a dried quartz product.

[0070] Alternatively, methods such as hot air drying or vacuum drying can be used to evaporate the residual solvent in the quartz particles.

[0071] S6 Select 3 (Particle Size Classification): Dry quartz particles are classified by particle size using a sieving device to classify the quartz particles according to different particle size ranges.

[0072] In step S1, the particle size of the quartz-type fluorite ore after crushing is less than 5 mm.

[0073] In step S4, the second separator 81 operates continuously; while the quartz crystal is conveyed by a spiral conveyor, the quartz crystal and the solution are separated by centrifugation using a sieve.

[0074] The above description is merely a preferred embodiment of this application; however, the scope of protection of this application is not limited thereto; any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and its improved concept, should be covered within the scope of protection of this application.

Claims

1. A device for extracting a quartz product from a quartz-type fluorite ore, characterized in that: The device comprises a crusher (1), a conveying and screening device (2), a crushed stone collecting device (3), a first flotation device (4), a second flotation device (5), a quartz extracting device (8) and a magnetic separation device (9); the output end of the crusher (1) is connected with the conveying and screening device (2); the conveying and screening device (2) is connected with the input end of the crushed stone collecting device (3); the output end of the crushed stone collecting device (3) is connected with the input end of the first flotation device (4); the output end of the first flotation device (4) is connected with the input end of the second flotation device (5); the output end of the second flotation device (5) is connected with the input end of the quartz extracting device (8); the output end of the quartz extracting device (8) is connected with the input end of the magnetic separation device (9); The crusher (1) is used for crushing the quartz-type fluorite ore to obtain crushed stones; The conveying and screening device (2) is used for screening crushed stones of different sizes; The crushed stone collecting device (3) is used for collecting crushed stones meeting the requirements; The first flotation device (4) is used for floating fluorite in the quartz-type fluorite ore to obtain ore containing quartz; The second flotation device (5) is used for floating quartz in the ore containing quartz to obtain ore with a higher content of quartz; The quartz extracting device (8) is used for extracting quartz crystals; The magnetic separation device (9) is used for purifying the quartz crystals; The quartz extracting device (8) comprises a reaction tank and a separator; the reaction tank comprises a first reaction tank and a second reaction tank; the first reaction tank is used for dissolving quartz particles containing impurities; the second reaction tank is used for precipitating quartz crystals; The separator comprises a first separator and a second separator (81); the first separator is used for separating impurities in the quartz slurry after being dissolved by the first reaction tank; the second separator (81) is used for separating and extracting the quartz crystals precipitated in the second reaction tank from the solution; The second separator (81) comprises a hopper (811), an outer shell (812), a screen (813), a first rotating shaft (814), a first motor, a second rotating shaft (816) and a second motor; support frames are fixedly arranged on the left and right sides below the outer shell (812); the upper left side of the outer shell (812) is fixedly installed with the hopper (811); the inside of the hopper (811) and the inside of the outer shell (812) are penetrated and connected; the first rotating shaft (814) is slidingly connected through the left and right sides of the outer shell (812); a water outlet is formed in the lower end of the outer shell (812); a water collecting tank is fixedly arranged below the water outlet; the water collecting tank is used for collecting the solution separated from the quartz crystals; The output end of the first motor is rotationally connected with one end of the first rotating shaft (814); the first motor drives the first rotating shaft (814) to rotationally operate; the output end of the second motor is rotationally connected with one end of the second rotating shaft (816); the second motor drives the second rotating shaft (816) to rotationally operate; the second separator (81) further comprises a discharge port (815); the discharge port (815) is arranged on the lower side of one end of the outer shell (812) away from the hopper (811); the discharge port (815) penetrates the outer shell (812) and is in conductive connection with the inside of the outer shell (812); The first rotating shaft (814) is fixedly provided with a spiral blade (817) on the outer periphery to form a spiral conveying device; the spiral blade (817) is fixedly provided with a brush (818) on the outer periphery away from the first rotating shaft (814); and the screen mesh (813) is sleeved on the outer periphery of the spiral conveying device.

2. A device for extracting quartz product from quartz-type spar according to claim 1, characterized in that: The conveying and screening device (2) comprises two conveying shafts, a conveying belt (21) and a stop block (22); a plurality of screen holes (211) are arranged on the conveying belt (21); a plurality of screen holes (211) are arranged on the conveying belt (21); the screen holes (211) are uniformly arranged and have the same size; the conveying belt (21) is formed by surrounding the two conveying shafts; the stop blocks (22) are arranged on the opposite sides of the two conveying shafts; the stop blocks (22) are used for cleaning the residual gravel on the conveying belt (21) to avoid affecting the operation of the conveying shafts; and the aperture of the screen hole (211) is less than 5 mm.

3. A device for extracting quartz product from quartz-type spar according to claim 1, characterized in that: The length of the screen mesh (813) is less than the length of the spiral conveying device; the two ends of the spiral conveying device are not wrapped in the screen mesh (813); one of the exposed ends of the spiral conveying device is arranged below the hopper (811); and the other exposed end of the spiral conveying device is arranged above the discharge port (815). The outer periphery of the screen mesh (813) is fixedly provided with a plurality of baffle plates; the baffle plates are in the shape of a ring; the side of the baffle plate away from the screen mesh (813) is slidably connected to the inner side wall of the shell (812); the end of the screen mesh (813) away from the hopper (811) is fixedly provided with a rotating seat; and the rotating seat is fixedly connected to the end of the second rotating shaft (816) away from the second motor; the second motor drives the rotating seat to rotate the screen mesh (813).

4. A device for extracting quartz product from quartz-type spar according to claim 1, characterized in that: The rotating speed of the first motor is different from that of the second motor; the rotating speed of the first motor is less than that of the second motor; the screen mesh (813) and the brush (818) are made of a flexible material.

5. A device for extracting quartz product from quartz type of spar according to claim 1, characterized in that: The end of the first rotating shaft (814) away from the first motor is fixedly provided with a vibration instrument; the vibration instrument vibrates at a certain frequency; the vibration is transmitted from the first rotating shaft (814) to the brush (818) through the spiral blade (817), so that the residual quartz crystal on the brush (818) is shaken off.

6. A method of extracting a quartz product from a quartz-type fluorite ore, characterized by: The device for extracting quartz products from quartz-type fluorite ore according to any one of claims 1-5 is used; and at least the following steps S1-S6 are included: S1: grinding: the quartz-type fluorite ore is crushed and screened to remove impurities and particles that do not meet the requirements; The ore of the quartz-type fluorite ore is crushed by the gravel machine (1) to obtain gravel, and the gravel is screened by the conveying and screening device (2); the gravel with a particle size meeting the requirements obtained through screening is conveyed into the first flotation equipment (4); The device for extracting quartz products from quartz-type fluorite ore according to any one of claims 1-5 is used; and at least the following steps S1-S6 are included: S2: First roughing: adding a first flotation agent in the first flotation device (4) to adjust the PH value; mixing the pre-processed crushed stone in S1 with the first flotation agent in the first flotation device (4), stirring and mixing the crushed stone with the first flotation agent by adjusting the reagent ratio and the working state of the stirring device in the first flotation device (4), realizing the separation of quartz and fluorite and other ore components; finally collecting the fluorite particles that float up; transmitting the quartz-containing ore slurry to the second flotation device (5); The PH value in the first flotation device (4) is 8-9.5; the temperature in the first flotation device (4) is controlled at 30-40℃; The first flotation reagent system is 1500g / t of oleic acid, 600g / t of sodium carbonate and 400g / t of sodium silicate; sodium carbonate is a conditioning agent, sodium silicate is an inhibitor, and oleic acid is a collector; sodium silicate forms a complex or adsorption layer on the surface of quartz, so that quartz and fluorite are separated; S3: Second roughing: adding a second flotation agent in the second flotation device (5); mixing the quartz-containing ore slurry in the first flotation device (4) with the second flotation agent in the second flotation device (5); stirring and mixing the crushed stone with the first flotation agent by adjusting the reagent ratio and the working state of the stirring device in the first flotation device (4), realizing the separation of quartz and other ore components; finally collecting the quartz particles that float up; sending the ore containing higher quartz content into the quartz extraction device (8); S4: Pickling: sending the ore containing higher quartz content into the first reaction tank of the quartz extraction device (8), mixing and heating the quartz particles obtained by flotation with a suitable acidic solvent in the reaction tank to dissolve the quartz particles; after filtering out the dissolved quartz slurry with the first separator, it is sent into the second reaction tank; then, by adjusting the temperature and pressure, the quartz in the solution is re-precipitated to form quartz particles; the solvent and quartz particles are separated by the second separator (81); the separated quartz crystals are sent to the magnetic separation device (9); S5: Magnetic separation: sending the quartz particles to the magnetic separation device (9); separating the pure quartz particles; drying the quartz particles to obtain dry quartz products; S6: Particle size classification: classifying the dry quartz particles by particle size, using a screening device to classify the quartz particles according to different particle size ranges.

7. A method of extracting quartz product from a quartz-type spar according to claim 6, characterized in that: In the S4 step, the second separator (81) works continuously and uninterruptedly; while the quartz crystals are conveyed by the screw conveyor, the quartz crystals are centrifuged and separated from the solution by the screen.

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