A quartz ore impurity removal and purification device

Abstract

The application relates to the field of ore impurity removal, and discloses a quartz ore impurity removal and purification equipment, which comprises, in sequence, a crushing unit, a washing unit, a magnetic separation unit, a flotation unit, an acid leaching unit and a drying unit; the raw ore is crushed to a preset particle size by the crushing unit, and the ore is washed by the washing unit; the flotation unit adsorbs non-magnetic impurities through reagents; the acid leaching unit removes impurities through acid liquor and calcination; the drying unit dries the ore; the magnetic separation unit comprises a magnetic separation box, the top of the magnetic separation box is provided with a feeding port, two-stage magnetic separation modules are arranged in the magnetic separation box, the two-stage magnetic separation modules are used for two-stage magnetic separation of the ore, and an auxiliary magnetic separation assembly is further arranged in the magnetic separation box and used for auxiliary magnetic separation. The two-stage magnetic separation modules are used for grading adsorption of ferromagnetic impurities, the auxiliary magnetic separation assembly is used for quantitative conveying, the flow of ore slurry is reduced, fine particles can also be adsorbed by the two-stage magnetic separation modules, and the subsequent purification of the quartz ore is facilitated.

Description

Technical Field

[0001] This invention relates to the field of ore impurity removal, specifically to a quartz ore impurity removal and purification device. Background Technology

[0002] The main component of natural quartz ore is silicon dioxide, but it is usually mixed with a variety of impurities. On the one hand, impurities affect product performance, and on the other hand, different fields have extremely high requirements for purity. However, the proportion of high-quality and high-purity ore in natural quartz ore is low. By removing impurities and purifying it, low-grade ore can be transformed into high-value products, thereby enhancing the economic value of resources.

[0003] The process for quartz purification needs to be adjusted according to the ore properties and target purity requirements. The core principle is to first remove impurities physically, then chemically, gradually removing different types of impurities. The general process is as follows:

[0004] First, the quartz ore is crushed and screened to dissociate impurities from quartz monomers. Then, clay impurities are removed by washing. Next, physical impurities are removed by magnetic separation and gravity separation. Then, non-metallic impurities are separated by flotation. After that, chemical impurities are removed by acid leaching and high-temperature treatment. Finally, the ore is dried and screened to obtain quartz products of different particle sizes. In general, physical methods such as magnetic separation and flotation mainly separate mechanically mixed impurities, while chemical methods such as acid leaching and high-temperature treatment remove trace impurities that are difficult to separate physically.

[0005] Magnetic separators are an important impurity removal process, and their effectiveness directly affects the subsequent quartz purification quality. However, while current high-intensity magnetic separators, such as electromagnetic separators, can handle weakly magnetic impurities like ilmenite and hematite, they have significant limitations when dealing with fine-grained impurities. This is because these fine-grained impurities have a large specific surface area, which significantly weakens their magnetism. They are easily released from the magnetic field during slurry flow, resulting in a removal rate of only 70%-80% for impurities such as iron and titanium. This clearly fails to meet the requirements of photovoltaic-grade quartz and has become one of the key bottlenecks restricting the purification of high-purity quartz. Summary of the Invention

[0006] The purpose of this invention is to provide a quartz ore impurity removal and purification device, which solves the technical problem that fine-grained impurities have a large specific surface area, their magnetic properties are significantly weakened, and they are easily lost from the magnetic field during the flow of slurry, resulting in a low removal rate of impurities such as iron and titanium.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A quartz ore purification and impurity removal device includes a crushing unit, a washing unit, a magnetic separation unit, a flotation unit, an acid leaching unit, and a drying unit connected in sequence. The crushing unit is used to crush the raw ore to a preset particle size, and the washing unit is used to wash the crushed ore. The flotation unit includes a pH adjustment module and a bubble generator, used to remove non-magnetic impurities by adsorption with reagents. The acid leaching unit is used to remove impurities from the ore by acid solution and calcination. The drying unit is used to dry the acid-leached ore.

[0009] The magnetic separation unit includes a magnetic separation box with a feed inlet at the top. The magnetic separation box contains two-stage magnetic separation modules for two-stage magnetic separation of the ore. The magnetic separation box also contains auxiliary magnetic separation components for auxiliary magnetic separation.

[0010] Furthermore, the two-stage magnetic separation module includes a first magnetic separator and a second magnetic separator. Both the first and second magnetic separators are rotatably mounted on opposite side walls of the magnetic separator box. The connecting shaft of the first and second magnetic separators extends out of the magnetic separator box and is fixed with pulleys. The two pulleys are driven by a chain, and one of the pulleys is connected to a drive motor. The magnetic separator box has a first magnetic separation discharge channel corresponding to the first magnetic separator, a second magnetic separation discharge channel corresponding to the second magnetic separator, and an ore discharge channel. Magnetic components are installed inside the first and second magnetic separators. The magnetic strength of the magnetic components in the first magnetic separator is less than that in the second magnetic separator.

[0011] Furthermore, the second magnetic separator is located above one side of the first magnetic separator, and the auxiliary magnetic separation component includes convex ribs, the diameter of which gradually decreases along the direction away from the first magnetic separator; multiple convex ribs are provided and are equally spaced on the outer surface of the first magnetic separator; a temporary storage tank is provided between the first magnetic separator and the magnetic separation box, and the outlet of the temporary storage tank is in contact with the outer surface of the first magnetic separator.

[0012] Furthermore, a scraper assembly is provided at the bottom of the temporary storage tank of the first magnetic separator. The scraper assembly includes a spring, one end of which is fixed to the side wall of the magnetic separator box, and a scraper bar is fixed to the other end of the spring. An elastic strip is embedded in the top of the scraper bar, and the scraper bar is tangentially positioned with respect to the outer surface of the first magnetic separator.

[0013] Furthermore, the magnetic separation auxiliary component also includes an aggregation module, which is used to concentrate the ore that falls under its own weight after impurity removal, and to re-adsorb the fine particles in the ore through the third magnetic separation section set in the aggregation module.

[0014] Furthermore, the aggregation module includes two vertical baffles, which are positioned at the top of the first discharge channel. A connecting plate is provided between the sides of the two vertical baffles. An inclined baffle is provided at the top of the vertical baffle near the second magnetic separator, and the top of the inclined baffle has a bent edge that faces the second magnetic separator. The end face of the bent edge is in contact with the outer surface of the second magnetic separator. A third magnetic discharge channel is provided at the bottom of the magnetic separator box below the inclined baffle.

[0015] Furthermore, a wave-shaped guide plate is provided at the bottom of the inclined baffle, the upper surface of the wave-shaped guide plate is configured as a continuous peak and valley structure, and a third magnetic separation unit is embedded inside the wave-shaped guide plate.

[0016] The third magnetic separation section consists of several permanent magnet strips, which are embedded at intervals along the upper surface of the waveform guide plate.

[0017] Furthermore, the two ends of the corrugated guide plate are rotatably equipped with shafts, and rollers are fixedly fitted on the shafts. Drive wheels are fixed on the same side of the two rollers, and a transmission belt is fitted between the two drive wheels. Elastic belts are fitted on the two rollers. One of the drive wheels is connected to the drive element, which is fixedly installed on the outside of the connecting plate. Multiple freely rotating rollers are provided on both sides of the corrugated guide plate. The rollers correspond to the troughs and crests of the corrugated guide plate, so that the elastic belt fits the corrugated guide plate. The two ends of the rollers are connected to the corrugated guide plate through automatic lifting columns.

[0018] The beneficial effects of this invention are:

[0019] (1) This invention achieves the dual optimization of magnetic impurity capture and slurry flow state through the dynamic linkage of two-stage magnetic separation modules and convex structure. Specifically, the design of the temporary storage tank outlet and the first magnetic separation cylinder with convex structure tightly fits together, forcing the slurry into the container formed between the convex structures, significantly reducing the ore flow rate and increasing its contact time with the magnetic field. The low-speed flowing slurry first adsorbs strong ferromagnetic impurities through the first magnetic separation cylinder with weak magnetic field. At this time, the physical barrier effect of the convex structure effectively inhibits the escape of fine ore particles caused by turbulence. Subsequently, the slurry falls naturally into the action area of ​​the second magnetic separation cylinder with strong magnetic field under the action of gravity. Since the ore flow has been evenly dispersed by the previous convex structure, the weak magnetic impurities are fully exposed to the high-intensity magnetic field, which greatly improves the capture efficiency. At the same time, the convex structure completes the quantitative batch transportation of ore while delaying the ore flow, avoiding the masking effect of impurities caused by the excessive thickness of the ore layer. Through the linkage of flow rate control and the stepwise increase of magnetic field strength, the probability of insufficient adsorption of weak magnetic impurities and easy loss of fine mineral particles during single-stage magnetic separation is reduced.

[0020] (2) In this invention, the coupling effect of the scraper assembly and the aggregation module creates a dual guarantee for the deep removal of magnetic impurities. On the one hand, the spring-supported scraper is always tangentially pressed against the surface of the first magnetic separator. When the cylinder rotates, the scraper can elastically cross the protrusion and continuously scrape off the fine iron filings remaining after adsorption, preventing them from being re-mixed into the ore flow. The dynamic cleaning mechanism reduces the probability of magnetic field attenuation caused by impurity accumulation in the traditional magnetic cylinder, ensuring the long-term stability of the primary magnetic separation efficiency. On the other hand, during the gravity fall of the ore after two-stage magnetic separation, the aggregation module performs spatial consolidation and path extension. Its built-in third magnetic separation unit applies a directional magnetic field force to the suspended fine particles, and performs secondary capture of the escaped weak magnetic impurities from the previous stage. The above process makes full use of the kinetic energy of the ore falling naturally, and completes deep purification without increasing energy consumption. Furthermore, the impurities removed by the scraper and the fine powder adsorbed by the aggregation module are discharged through independent channels, eliminating the risk of impurity backflow and providing a raw material basis with low iron impurity interference for subsequent flotation and acid leaching units, ultimately achieving a leap in the purification efficiency of the entire process. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a block diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0024] Figure 3 This is a three-dimensional schematic diagram of the elastic band in this invention.

[0025] Figure 4 for Figure 3 Another perspective view.

[0026] Figure 5 for Figure 2 Enlarged schematic diagram of the middle scraper assembly.

[0027] Figure 6 This is a schematic diagram of the roller structure in this invention.

[0028] Figure Descriptions: 1. Magnetic separator box; 2. Feed inlet; 3. Two-stage magnetic separation module; 31. First magnetic separator cylinder; 32. Second magnetic separator cylinder; 33. Pulley; 34. Chain; 35. Drive motor; 36. First magnetic separation discharge channel; 37. Second magnetic separation discharge channel; 38. Ore discharge channel; 39. Magnetic component; 4. Auxiliary magnetic separation component; 41. Protruding rib; 42. Temporary storage tank; 43. Scraper assembly; 431. Spring; 432. Scraper bar; 433. Elastic strip; 44. Aggregation module; 441. Vertical baffle; 442. Inclined baffle; 443. Bent edge; 444. Third magnetic separation discharge channel; 445. Waveform guide plate; 45. Rotating shaft; 46. Roller; 47. Drive wheel; 48. Transmission belt; 49. Elastic belt; 50. Drive element; 51. Roller; 52. Automatic lifting column; 53. Guide trough; 6. Paddle. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-6 As shown, this invention is a quartz ore purification and impurity removal device, comprising a crushing unit, a washing unit, a magnetic separation unit, a flotation unit, an acid leaching unit, and a drying unit connected in sequence. The crushing unit is used to crush the raw ore to a preset particle size, and the washing unit is used to wash the crushed ore. The flotation unit includes a pH adjustment module and a bubble generator, used to remove non-magnetic impurities by adsorption with reagents. The acid leaching unit is used to remove impurities from the ore by acid solution and calcination. The drying unit is used to dry the acid-leached ore.

[0031] The magnetic separation unit includes a magnetic separation box 1, a feed inlet 2 on the top of the magnetic separation box 1, a two-stage magnetic separation module 3 inside the magnetic separation box 1, the two-stage magnetic separation module 3 is used to perform two-stage magnetic separation on the ore, and an auxiliary magnetic separation component 4 is also provided inside the magnetic separation box 1 for auxiliary magnetic separation.

[0032] In this invention, the basic objectives can be achieved using existing crushing, washing, flotation, acid leaching, and drying units, which will not be elaborated upon here. The magnetic separation unit is an area for improvement. Compared to the problem of weak magnetic impurities being difficult to screen in existing single-stage magnetic drum separation, a two-stage magnetic separation module 3 is set up. This allows for the adsorption of strong ferromagnetic impurities first, followed by the adsorption of weak ferromagnetic impurities using strong magnets, thus achieving two-stage magnetic separation and effective magnetic separation. At the same time, an auxiliary magnetic separation component 4 is also set up to forcibly remove magnetic impurities remaining on the outer surface of the first magnetic separation drum 31, thereby improving the overall magnetic impurity capture effect.

[0033] The two-stage magnetic separation module 3 includes a first magnetic separator 31 and a second magnetic separator 32. Both the first magnetic separator 31 and the second magnetic separator 32 are rotatably mounted on two opposite side walls of the magnetic separator box 1. The connecting shaft of the first magnetic separator 31 and the second magnetic separator 32 extends out of the magnetic separator box 1 and is fixed with a pulley 33. The two pulleys 33 are driven by a chain 34, and one of the pulleys 33 is connected to the drive motor 35. The magnetic separator box 1 is provided with a first magnetic separation discharge channel 36 corresponding to the first magnetic separator 31, a second magnetic separation discharge channel 37 corresponding to the second magnetic separator 32, and an ore discharge channel 38. Magnetic components 39 are provided inside the first magnetic separator 31 and the second magnetic separator 32. The magnetic strength of the magnetic component 39 in the first magnetic separator 31 is less than that in the second magnetic separator 32.

[0034] This invention provides a specific structure for a two-stage magnetic separation module 3. Ore is fed from the inlet 2 and falls directly into the temporary storage tank 42 under gravity. Since the outlet of the temporary storage tank 42 is designed to correspond to the opening shape of the first magnetic separator 31, the first magnetic separator 31 fits snugly against the opening of the temporary storage tank 42. A drive motor 35 rotates one of the pulleys 33, and a chain drive enables the two pulleys 33 and the corresponding first and second magnetic separators 31 to rotate. Because the magnetic component 39 is only partially installed, the ore in the temporary storage tank 42 slides down along the first magnetic separator 31, while some strongly magnetic impurities are adsorbed by the magnetic component 39. When the ore moves between the first and second magnetic separators 31... After the junction, the second magnetic separator 32 adsorbs weakly magnetic impurities within its influence range, while the remaining ore falls directly into the ore discharge channel 38 for discharge. When the strongly magnetic impurities adsorbed by the first magnetic separator 31 cross the ore discharge channel 38, they also leave the magnetic range of the magnetic component 39 and fall under gravity, landing in the first magnetic discharge channel 36. Meanwhile, the weakly magnetic impurities adsorbed by the second magnetic separator 32 leave the magnetic range of the internal magnetic component 39 after the rotation and fall under gravity into the second magnetic discharge channel 37. Thus, the two-stage magnetic modules effectively capture both strong and weakly magnetic impurities in the ore, improving the overall magnetic separation effect.

[0035] The second magnetic separator 32 is located above one side of the first magnetic separator 31. The auxiliary magnetic separation component 4 includes a protruding rib 41, the diameter of which gradually decreases along the direction away from the first magnetic separator 31. Multiple protruding ribs 41 are provided and are equally spaced on the outer surface of the first magnetic separator 31. A temporary storage tank 42 is provided between the first magnetic separator 31 and the magnetic separation box 1, and the outlet of the temporary storage tank 42 is in contact with the outer surface of the first magnetic separator 31.

[0036] The first magnetic separator 31 is located at the bottom of the temporary storage tank 42 and is equipped with a scraper assembly 43. The scraper assembly 43 includes a spring 431. One end of the spring 431 is fixed to the side wall of the magnetic separator 1, and a scraper strip 432 is fixed to the other end of the spring 431. An elastic strip 433 is embedded in the top of the scraper strip 432. The scraper strip 432 is tangentially arranged with the outer surface of the first magnetic separator 31.

[0037] This invention provides a specific structure for the auxiliary magnetic separation component 4. To address the problem that fine impurities have a large specific surface area, significantly weakened magnetism, and are easily lost due to detachment from the magnetic field during slurry flow, convex ribs 41 are provided. The troughs formed between the convex ribs 41 store the ore. When the first magnetic separator 31 rotates, the ore is transported in batches and quantities according to the troughs, thus reducing the flow rate. Therefore, after the first magnetic separator 31 effectively adsorbs strongly magnetic impurities, the fine particles fall into the range of the second magnetic separator 32, where they are further separated by the stronger magnetic separator. The magnetic separator 32 adsorbs weakly magnetic impurities, and the combination of the two achieves the maximum capture of magnetic impurities and improves the purity of the ore. In order to reduce the particulate matter adhering to the outer surface of the first magnetic separator 31, a scraper 432 is provided. The combined action of the spring 431 and the scraper 432 ensures that the scraper 432 is always in contact with the first magnetic separator 31. When it encounters a protrusion 41, the protrusion 41 compresses the scraper 432 and the spring 431 to force them to contract, thereby achieving the purpose of overcoming the protrusion 41 and always keeping in contact with the outer surface of the first magnetic separator 31, thus improving the removal of residual ferromagnetic impurities.

[0038] The magnetic separation auxiliary component also includes an aggregation module 44, which is used to concentrate the ore that falls under its own weight after impurity removal, and to re-adsorb the fine particles in the ore through the third magnetic separation section set in the aggregation module 44.

[0039] The aggregation module 44 includes two vertical baffles 441, which are disposed at the top of the first discharge channel. A connecting plate is disposed between the sides of the two vertical baffles 441. An inclined baffle 442 is disposed at the top of the vertical baffle 441 near the second magnetic separator 32. The top of the inclined baffle 442 is provided with a bent edge 443 towards the second magnetic separator 32. The end face of the bent edge 443 is in contact with the outer surface of the second magnetic separator 32. A third magnetic discharge channel 444 is disposed at the bottom of the magnetic separator box 1 below the inclined baffle 442.

[0040] A wave-shaped guide plate 445 is provided at the bottom of the inclined baffle 442. The upper surface of the wave-shaped guide plate 445 is configured as a continuous wave peak and valley structure. A third magnetic separation unit is embedded inside the wave-shaped guide plate 445.

[0041] The third magnetic separation section consists of several permanent magnet strips, which are embedded at intervals along the upper surface of the corrugated guide plate 445. In this invention, a receiving section is formed by the two vertical baffles 441, the connecting plates on both sides, and the inclined baffles 442 to collect the freely falling ore. The ore that slides off and falls from the inclined baffles 442 lands precisely on the corrugated guide plate 445. The wavelength of the corrugated guide plate 445 is set to be 3-5 times the ore particle size, which reduces the ore particle velocity and thus ensures that the ore after the two-stage magnetic separation falls accurately into the ore discharge channel 38.

[0042] The waveform guide plate 445 has rotating shafts 45 at both ends, with rollers 46 fixedly mounted on the shafts 45. Drive wheels 47 are fixed to the same side of each roller 46, and a transmission belt 48 is fitted between the two drive wheels 47. Elastic belts 49 are fitted onto the two rollers 46. One drive wheel 47 is connected to a drive element 50, which is fixedly mounted on the outer side of the connecting plate. Multiple freely rotating rollers 51 are arranged on both sides of the waveform guide plate 445, corresponding to the troughs and crests of the waveform guide plate 445, so that the elastic belts 49 fit against the waveform guide plate 445. The two ends of the rollers 51 are connected to the waveform guide plate 445 via automatic lifting columns 52. Both the rollers 51 and the automatic lifting columns 52 are made of non-ferromagnetic materials.

[0043] Under normal operating conditions, the drive element 50, i.e., the motor, drives the rotating shaft 45 to rotate, which in turn drives the roller 46 to rotate. Under the action of friction, the elastic belt 49 slowly rotates, moving from the front to the back of the corrugated guide plate 445. This changes the working surface in contact with the ore particles, extending the service life of the elastic belt 49. Furthermore, it allows adsorbed impurities to be transferred to the back of the corrugated guide plate 445, thus removing impurities adsorbed on the front. Because the impurities move away from the upper surface of the corrugated guide plate 445, the third magnetic separation unit only acts on the upper surface of the corrugated guide plate 445, thus eliminating the effect of the third magnetic separation unit. Consequently, the impurities fall into the lower surface under their own weight. The ore flows through a guide trough 53 located below the wave guide plate 445, and finally exits through a slot on the vertical baffle 441 into the third magnetic separation discharge channel 444, achieving further magnetic separation of fine particulate impurities. To regulate the ore flow rate, an automatic lifting column 52 is installed. The automatic lifting column 52 at the troughs rises and falls synchronously to change the pressure on the elastic band 49, causing the elastic band 49 to deform and thus changing the distance between the elastic band 49 and the trough, thereby achieving adjustable trough depth on the guide plate surface. The automatic lifting column 52 at the crests remains unchanged. Since the automatic lifting column 52 is rotatably connected to the roller 51, the roller 51 can change height but always rotate freely. It should be noted that multiple paddles 6 are spaced apart on the outer surface of the roller 51. During rotation, the paddles 6 agitate the magnetic material on the surface of the elastic band 49, ensuring that the magnetic material can pass through the roller 51.

[0044] Through the above technical solution, on the one hand, the cyclical rotation of the elastic belt 49 and the change in distance to the permanent magnet form a dual-action chain: when the driving element 50 moves the elastic belt 49 away from the front of the guide plate, the distance between the impurities and the magnetic source increases significantly, and the magnetic field force decreases to below the critical value; at this time, the force of gravity exceeds the magnetic binding force, and the impurities automatically detach from the belt and fall into the guide groove, thereby simultaneously realizing the self-cleaning regeneration of the belt working surface and zero-energy impurity removal, completely eliminating residual pollution; on the other hand, the automatic lifting column 52 forces the elastic belt 49 to deform through the lifting roller 51, dynamically changing the depth of the trough to precisely control the ore flow rate, so that fine particles... Sufficient magnetic separation time is obtained; simultaneously, the permanent magnet strips form a high-intensity gradient magnetic field in the trough area, applying directional adsorption force to the weakly magnetic fine powder; the dual effect of flow rate slowing and magnetic field strengthening significantly improves the capture efficiency of fine impurities; at the same time, the aggregation module 44 and the pre-magnetic separation unit form a deep impurity removal chain: the first magnetic separator 31 removes strong magnetic impurities → the second magnetic separator 32 captures weakly magnetic particles → the elastic belt 49 alternates and adjusts the trough to adsorb escaped fine powder; the three-stage purification linkage greatly reduces the total amount of iron impurities, providing ultrapure raw materials for the subsequent acid leaching unit, and simultaneously achieving a dual breakthrough of purification efficiency leap and energy consumption optimization.

[0045] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A quartz ore impurity removal and purification device, comprising, in sequence, a crushing unit, a washing unit, a magnetic separation unit, a flotation unit, an acid leaching unit and a drying unit; the crushing unit is used for crushing raw ore to a preset particle size, and the washing unit is used for washing the crushed ore; the flotation unit comprises a pH adjusting module and a bubble generator, and is used for removing non-magnetic impurities through reagent adsorption; the acid leaching unit is used for removing impurities on the ore through acid and calcination; and the drying unit is used for drying the ore after acid leaching. characterized in that The magnetic separation unit comprises a magnetic separation box, the top of the magnetic separation box is provided with a feeding port, two-stage magnetic separation modules are arranged in the magnetic separation box, the two-stage magnetic separation modules are used for two-stage magnetic separation of the ore, and an auxiliary magnetic separation assembly is further arranged in the magnetic separation box and used for auxiliary magnetic separation. The auxiliary magnetic separation assembly comprises an aggregation module, the aggregation module is used for concentrating the ore falling under the action of gravity after impurity removal, and the fine particles in the ore are adsorbed again through a third magnetic separation part arranged in the aggregation module. The aggregation module comprises two vertical baffles, the two vertical baffles are arranged at the top of the first discharge channel, a connecting plate is arranged between the side surfaces of the two vertical baffles, an inclined baffle is arranged at the top of the vertical baffle close to the second magnetic separation cylinder, the top end of the inclined baffle is provided with a bent edge towards the second magnetic separation cylinder, the end surface of the bent edge is attached to the outer surface of the second magnetic separation cylinder, and a third magnetic separation discharge channel is arranged at the bottom of the magnetic separation box below the inclined baffle. The bottom end of the inclined baffle is provided with a wave-shaped flow guide plate, the upper surface of the wave-shaped flow guide plate is arranged in a continuous wave peak and wave trough structure, and a third magnetic separation part is embedded in the wave-shaped flow guide plate. The third magnetic separation part is composed of a plurality of permanent magnet strips, and each permanent magnet strip is embedded at intervals along the upper surface of the wave-shaped flow guide plate. Rollers are rotatably arranged at both ends of the wave-shaped flow guide plate, a driving wheel is fixed to one side of each roller, a transmission belt is arranged between the two driving wheels, and one of the driving wheels is in transmission connection with a driving element fixed to the outer side of the connecting plate. A plurality of freely rotating rollers are arranged at the two sides of the wave-shaped flow guide plate, the rollers correspond to the wave troughs and wave peaks of the wave-shaped flow guide plate, the elastic belt is attached to the wave-shaped flow guide plate, and the two ends of the roller are connected to the wave-shaped flow guide plate through automatic lifting columns.

2. The quartz ore impurity removal and purification apparatus according to claim 1, characterized by, The two-stage magnetic separation modules comprise a first magnetic separation cylinder and a second magnetic separation cylinder, the first magnetic separation cylinder and the second magnetic separation cylinder are rotatably arranged on the two opposite side walls of the magnetic separation box, the connecting shafts of the first magnetic separation cylinder and the second magnetic separation cylinder extend out of the magnetic separation box and are fixed with pulleys, the two pulleys are in transmission through a chain, and one of the pulleys is in transmission connection with a driving motor; the magnetic separation box is provided with a first magnetic separation discharge channel corresponding to the first magnetic separation cylinder, a second magnetic separation discharge channel corresponding to the second magnetic separation cylinder and an ore discharge channel; the first magnetic separation cylinder and the second magnetic separation cylinder are provided with magnetic assemblies; and the magnetic strength of the magnetic assembly in the first magnetic separation cylinder is smaller than that in the second magnetic separation cylinder.

3. The quartz ore impurity removal and purification apparatus according to claim 2, characterized by The second magnetic separation cylinder is located above one side of the first magnetic separation cylinder, the auxiliary magnetic separation assembly comprises a convex rib, the diameter of the convex rib gradually decreases away from the first magnetic separation cylinder; and the convex rib is provided with a plurality of ribs and is arranged at equal intervals on the outer surface of the first magnetic separation cylinder. The first magnetic separation cylinder is provided with a temporary storage groove between the magnetic separation cylinder and the magnetic separation box, and the outlet of the temporary storage groove is attached to the outer surface of the first magnetic separation cylinder.

4. The quartz ore impurity removal and purification apparatus according to claim 3, characterized by, The first magnetic separation cylinder is provided with a scraper assembly at the bottom of the temporary storage groove, the scraper assembly comprises a spring, one end of the spring is fixed on the side wall of the magnetic separation box, one end of the spring is fixed with a scraper strip, the top of the scraper strip is embedded with an elastic strip, and the scraper strip is tangentially arranged between the outer surface of the first magnetic separation cylinder.

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