Impurity removal equipment for quartz sand filter material production

Abstract

The invention relates to the technical field of quartz sand filter material production, and discloses an impurity removal device for quartz sand filter material production, the impurity removal device comprises a frame body, the frame body is provided with a feeding conveying belt, a material distribution mechanism and a plurality of magnetic separation mechanisms, the material distribution mechanism dispersedly conveys quartz sand into the magnetic separation mechanisms, and electromagnets are arranged in the magnetic separation mechanisms; a rotatable drum and an umbrella cover are further arranged in the magnetic separation mechanism, a protective cover is arranged at the bottom of the umbrella cover, the electromagnet is arranged on the inner side of the protective cover, the quartz sand is thrown to the inner wall of the drum after passing through the umbrella cover, the falling speed of the quartz sand is reduced due to centrifugal force, and scrap iron is adsorbed to the protective cover; by optimizing the structural design of the whole process of material distribution, magnetic separation, stirring and discharging, high efficiency and precision of iron removal and magnetic separation of quartz sand are achieved. Compared with an existing device, the effective contact time of quartz sand and a magnetic field is prolonged, scrap iron is fully exposed and adsorbed through multi-direction stirring, and the iron removal thoroughness is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of quartz sand filter media production technology, specifically to a purification device for quartz sand filter media production. Background Technology

[0002] Quartz sand filter media is a granular filter material made from natural quartz ore through crushing, screening, and washing processes. Its main component is silicon dioxide (SiO2), and it possesses excellent properties such as strong chemical stability, high mechanical strength, high hardness, reasonable porosity, and resistance to acid and alkali corrosion. It is widely used in water treatment, environmental protection, chemical industry, power generation, metallurgy, and many other fields. In water treatment, quartz sand filter media is a core filter medium in water supply and wastewater treatment systems, used to remove suspended solids, colloidal particles, silt, algae, and other impurities from water, ensuring that the effluent meets standards. In the chemical industry, it is commonly used as a catalyst carrier and adsorbent filler. In the power industry, it can be used as a filter material for boiler water pretreatment to prevent scaling and clogging of pipes and equipment.

[0003] The quality of quartz sand filter media directly determines the operating efficiency and filtration effect of the filtration system. Impurity content is a key indicator of its quality, especially iron oxide impurities (such as Fe2O3 and Fe3O4), which have a particularly significant impact on the filtered liquid. On the one hand, iron oxide impurities cause the quartz sand filter media to turn yellow and lose its appearance quality, affecting the market competitiveness of the filter media product. On the other hand, during the filtration process, iron oxide impurities easily react with other ions in the water to form soluble iron salts or insoluble iron oxide precipitates. These precipitates not only adhere to the surface of the filter media, clogging the pores and reducing the filtration flux and adsorption capacity, leading to a significant decrease in filtration efficiency and an increase in backwashing frequency, but also cause the filtered water to turn yellow, affecting the sensory indicators of the water quality. If used for drinking water treatment, this could even pose a potential risk to human health. Furthermore, the presence of iron oxide impurities reduces the chemical stability of the quartz sand filter media. Prolonged contact with corrosive water may accelerate the wear and tear of the filter media, shorten its service life, and increase the operation and maintenance costs of the filtration system.

[0004] To remove iron oxide impurities from quartz sand filter media, existing technologies mainly employ magnetic separation equipment. Most current quartz sand magnetic separation devices use a fixed magnet with a conveyor belt or a single rotating drum structure. During operation, the quartz sand passes through the magnetic field area in a continuous, accumulated state, resulting in the following significant drawbacks: First, the quartz sand falls rapidly, and the contact time with the magnetic field is short. Fine iron filings encased within the quartz sand particles or trapped in the material gaps are difficult to fully adsorb, leading to incomplete iron removal. The iron content of the finished quartz sand often exceeds industrial standards. Second, the magnetic separation mechanism lacks an effective stirring and dispersing structure. After iron filings are adsorbed onto the magnet surface, they easily form an "iron filings layer." This layer encapsulates some of the quartz sand, wasting the quartz sand filter media and reducing the subsequent iron filings adsorption efficiency. Further screening is required during iron filings recovery. These problems severely restrict the purity and efficiency of quartz sand filter media removal, making it difficult to meet the demands of high-precision industrial fields for high-purity quartz sand filter media. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned difficulties and provide a purification device for the production of quartz sand filter media.

[0006] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: a purification device for the production of quartz sand filter media, comprising a frame, a feeding conveyor belt, a material distribution mechanism and a magnetic separation mechanism on the frame, wherein an electromagnet is provided inside the magnetic separation mechanism; The magnetic separation mechanism includes an upper shell and a base. A rotating drum is rotatably mounted inside the upper shell. A driving mechanism is located at the bottom of the base. The driving mechanism includes a motor, a drive shaft, and a transmission shaft. The motor drives the drive shaft to rotate at the center of the base. A canopy is located at the top of the drive shaft, and a protective cover is located at the bottom of the canopy. The drive shaft drives the rotating drum to rotate through the transmission shaft. A fixed platform is located on the base. An electromagnet is located inside the protective cover and mounted on the fixed platform. Multiple sets of pushing mechanisms are located on the fixed platform. The pushing mechanism includes a fixed push plate that cooperates with the protective cover and a movable push plate that cooperates with the inner wall of the rotating drum. An inner scraper and an outer scraper are located on the fixed platform. The inner scraper and the outer scraper scrape off the material on the protective cover and the rotating drum, respectively, and the material enters the discharge platform inside the base and the discharge trough outside the upper shell.

[0007] As an improvement: the pushing mechanism further includes a column fixed to a fixed platform, multiple fixed push plates fixed in a row on the column, multiple movable push plates rotatably mounted in a row on the column, and the fixed push plates and movable push plates of multiple sets of pushing mechanisms are staggered, wherein the tilting direction of the fixed push plates and movable push plates of one set of pushing mechanisms is opposite to the tilting direction of the fixed push plates and movable push plates of the other pushing mechanisms.

[0008] As an improvement: a lever is hinged to the column, and gear three and gear four are respectively provided at the ends of the movable push plate and the lever that extend into the inner cavity of the column. A rack that meshes with gear three and gear four is slidably provided in the inner cavity of the column. A torsion spring connected to the column is provided on the lever, and an arc-shaped plate that cooperates with the lever is provided on the inner side of the rotating cylinder.

[0009] As an improvement: the radius at the upper part of the inner wall of the rotating drum is larger than the radius at the lower part of the inner wall, forming an inverted conical cavity. Multiple deceleration rings are provided on the inner wall of the rotating drum. The movable push plate is staggered with the deceleration rings. The rotating drum is provided with a discharge port. An outer scraper is provided at the discharge trough. When the discharge port rotates to the discharge trough, the material blocked by the outer scraper is thrown into the discharge trough through the discharge port.

[0010] As an improvement: the top of the fixed platform is an inclined surface with an annular groove on the inclined surface, and an annular plate is provided on the inner side of the bottom of the rotating drum. The annular plate extends into the annular groove. A fixed rod is provided on the fixed platform, and an outer scraper is connected to the fixed rod. A shovel plate that cooperates with the annular plate is provided at the bottom of the outer scraper, and an anti-overflow plate is provided on the side of the shovel plate near the protective cover.

[0011] As an improvement: the bottom of the protective cover is tapered inward, and the bottom of the fixed platform is provided with a ring cover outside the tapered opening of the protective cover. The inner scraper is located inside the ring cover and cooperates with the tapered opening at the bottom of the protective cover. A material discharge trough is provided at the bottom of the inner scraper, and the material discharge trough is connected to the top cavity of the discharge platform.

[0012] As an improvement: the discharge platform is longitudinally slidably disposed in the internal cavity of the base, the receiving plate of the discharge platform is inclined, a collision platform is provided at the bottom, a collision rod that cooperates with the collision platform is provided on the drive shaft, a fixed groove plate is provided on the frame, and a feeding groove platform that cooperates with the fixed groove plate is provided on the discharge platform.

[0013] As an improvement: a conveying mechanism is provided below the material distribution mechanism. The conveying mechanism includes a conveying box that communicates with the material distribution mechanism and the upper shell. A movable plate is hinged inside the conveying box. A fixed plate is provided above the movable plate. Both the fixed plate and the movable plate are provided with staggered pressure strips. A cylinder is hinged on the upper shell. The output end of the cylinder is hinged to the bottom of the movable plate.

[0014] The advantages of this invention compared to existing technologies are as follows: By optimizing the entire process structure design of material distribution, magnetic separation, agitation, and discharge, this invention achieves high efficiency and precision in impurity removal from quartz sand filter media. Compared to existing devices, it not only extends the effective contact time between the quartz sand and the magnetic field, but also fully exposes and adsorbs iron filings through multi-directional agitation, significantly improving the thoroughness of iron removal. Specifically: 1. The magnetic separation mechanism adopts a design of "inverted conical rotating drum + fixed protective cover + multiple sets of pushing mechanism". The inverted conical rotating drum and the inner wall deceleration ring extend the falling time of the quartz sand. With the umbrella cover rotating and throwing the material, the material can fully contact the magnetic field of the electromagnet. The pushing mechanism stirs the quartz sand and the iron filings adsorbed by the protective cover in the rotating drum from multiple directions through the staggered fixed push plate and movable push plate (including periodic flipping structure). The fixed push plate scrapes the iron filings to remove the quartz sand wrapped around it, and the movable push plate flips the quartz sand to expose the iron filings inside, which greatly reduces the iron filings residue rate and solves the core problems of "iron filings wrapping the quartz sand" and "incomplete iron removal" in traditional devices. 2. The bottom of the protective cover narrows and fits with the ring cover to prevent the quartz sand and iron filings from mixing before separation. The inner scraper precisely scrapes off the iron filings on the protective cover and guides them to the discharge platform through the feeding chute. The discharge platform adopts an inclined receiving plate and a drive shaft linkage impact rod design. The vibration effect prevents the iron filings from accumulating and clogging, while smoothly conveying the iron filings to the fixed trough plate. The outer scraper works with the discharge port of the rotary drum to accurately throw the quartz sand into the discharge chute under the action of centrifugal force. The anti-overflow plate prevents material splashing and eliminates the problem of secondary mixing after separation in traditional devices, ensuring the purity of the finished product. 3. A single motor drives the drive shaft (which drives the canopy) and the rotating drum synchronously through gear and bevel gear transmission, ensuring that the two operate in coordination according to the set transmission ratio. This eliminates the need for separate control of multiple motors, reducing equipment energy consumption and maintenance costs. At the same time, the drive shaft drives the impact rod to vibrate the discharge table, reducing additional power components, simplifying the equipment structure, improving ease of operation, and solving the problems of poor coordination and high energy consumption of multiple power sources in traditional devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the main structure of the present invention.

[0017] Figure 3 This is a cross-sectional view of the conveying mechanism and magnetic separation mechanism of the present invention.

[0018] Figure 4 This is an exploded view of the conveying mechanism of the present invention.

[0019] Figure 5 This is a schematic diagram of the internal structure of the magnetic separation mechanism of the present invention.

[0020] Figure 6 This is a cross-sectional view of the rotating cylinder of the present invention.

[0021] Figure 7 This is a schematic diagram of the drive mechanism and discharge platform of the present invention.

[0022] Figure 8 This is a schematic diagram of the structure of the transmission shaft of the present invention.

[0023] Figure 9 This is a cross-sectional view of the fixing platform of the present invention.

[0024] Figure 10 This is a schematic diagram of the structure of the outer scraper of the present invention.

[0025] Figure 11 This is a schematic diagram of the material feeding trough and the material discharge platform of the present invention.

[0026] Figure 12 This is a schematic diagram of the material pushing mechanism of the present invention.

[0027] Figure 13 This is an exploded view of the feeding mechanism of the present invention.

[0028] Figure 14 This is a partial structural schematic diagram of the feeding mechanism of the present invention.

[0029] As shown in the figure: 1. Frame; 2. Feeding conveyor belt; 3. Material distribution mechanism; 4. Conveying mechanism; 5. Magnetic separation mechanism; 6. Rotary drum; 7. Drive mechanism; 8. Fixed platform; 9. Pushing mechanism; 31. Feed box; 32. Material distribution pipe; 33. Soft feed box; 41. Conveying box; 42. Fixed plate; 43. Movable plate; 44. Cylinder; 45. Pressure bar; 51. Upper shell; 511. Collecting inclined plate; 52. Base; 521. Discharge platform; 522. Impact platform; 523. Feeding trough platform; 53. Discharge trough; 54. Fixed trough plate; 61. Bevel gear; 62. Ring plate; 63. Deceleration ring; 64. 65. Discharge port; 71. Arc plate; 72. Motor; 73. Gear 1; 74. Drive shaft; 75. Gear 2; 76. Impact rod; 77. Bevel gear 2; 78. Protective cover; 79. Umbrella cover; 70. Drive shaft; 71. Bevel gear 3; 72. Bevel gear 4; 81. Ring cover; 82. Inner scraper; 83. Discharge chute; 84. Ring groove; 85. Fixed rod; 86. Outer scraper; 87. Shovel plate; 88. Overflow plate; 89. Electromagnet; 91. Column; 92. Fixed push plate; 93. Movable push plate; 94. Gear 3; 95. Rack; 96. Lever; 97. Gear 4; 98. Torsion spring. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] Combined with appendix Figure 1 Appendix Figure 2 and attached Figure 3As shown, to solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a purification device for the production of quartz sand filter media, including a frame 1, a feeding conveyor belt 2, a distributing mechanism 3, and multiple magnetic separation mechanisms 5 on the frame 1. The distributing mechanism 3 disperses and conveys the quartz sand into the magnetic separation mechanisms 5. The magnetic separation mechanisms 5 are equipped with electromagnets 89, a rotatable drum 6, and a canopy 75. The bottom of the canopy 75 is equipped with a protective cover 74. The electromagnets 89 are located inside the protective cover 74. The quartz sand passes through the canopy 75. The quartz sand is then thrown towards the inner wall of the rotating drum 6. Due to centrifugal force, the falling speed of the quartz sand is slowed down, and the iron filings are adsorbed onto the protective cover 74. Multiple sets of pushing mechanisms 9 are provided between the rotating drum 6 and the protective cover 74. The pushing mechanisms 9 agitate the quartz sand and iron filings on the rotating drum 6 and the protective cover 74, so that the iron filings in the quartz sand on the rotating drum 6 are exposed and adsorbed onto the protective cover 74, and the quartz sand in the iron filings on the protective cover 74 is exposed and falls or is thrown onto the rotating drum 6. The bottom of the rotating drum 6 and the protective cover 74 are provided with scraping structures to send the separated quartz sand and iron filings into the discharge structure.

[0032] To address the problem of incomplete iron removal from quartz sand filter media, particularly the issue of iron filings being easily encapsulated or trapped within the quartz sand, leading to incomplete separation, this invention's quartz sand impurity removal device achieves efficient iron removal through optimized structural design. Its working principle is as follows: The quartz sand filter media is conveyed by the feeding conveyor belt 2 to the distributing mechanism 3. After being dispersed by the distributing mechanism 3, it evenly enters multiple magnetic separation mechanisms 5. Upon entering the magnetic separation mechanism 5, the quartz sand first passes through the umbrella cover 75, and then, under the rotation of the umbrella cover 75, is thrown towards the inner wall of the rotating drum 6. The centrifugal force slows down the falling speed of the quartz sand, allowing sufficient time for the iron filings in the quartz sand to be attracted by the magnetic force generated by the electromagnet 89 inside the protective cover 74. At this point, the iron in the quartz sand is removed. Under the action of magnetic force, the iron filings are adsorbed onto the protective cover 74. At the same time, the multiple sets of pushing mechanisms 9 between the rotating drum 6 and the protective cover 74 continuously stir. This stirring action can, on the one hand, turn over the quartz sand on the rotating drum 6, exposing the iron filings wrapped inside, making it easier for them to be adsorbed by the protective cover 74; on the other hand, it can stir the iron filings adsorbed on the protective cover 74, causing the quartz sand mixed in the iron filings to detach. These detached quartz sands either fall under the action of gravity or are thrown onto the drum wall by the rotating drum 6 to continue to participate in the separation process. Finally, after sufficient separation, the scraping structure at the bottom of the rotating drum 6 and the protective cover 74 scrapes off the pure quartz sand and the adsorbed iron filings respectively, and sends them to the corresponding discharge structure to complete the iron removal and magnetic separation process of the quartz sand.

[0033] Combined with appendix Figure 3 and attached Figure 7As shown, the magnetic separation mechanism 5 includes an upper housing 51 and a base 52. The rotating drum 6 is rotatably disposed inside the upper housing 51. The bottom of the base 52 is provided with a drive mechanism 7, which includes a motor 71, a drive shaft 72 and a transmission shaft 76. The motor 71 drives the drive shaft 72 to rotate at the axis of the base 52. The top of the drive shaft 72 is connected to the umbrella cover 75. The drive shaft 72 drives the rotating drum 6 to rotate through the transmission shaft 76. The base 52 is provided with a fixed platform 8, and an electromagnet 89 is installed on the fixed platform 8.

[0034] Combined with appendix Figure 1 Appendix Figure 3 Appendix Figure 7 and attached Figure 8 As shown, the motor 71 is fixed on the frame 1. The output end of the motor 71 is provided with a gear 711. The bottom of the drive shaft 72 is provided with a gear 721 that meshes with the gear 711. The transmission shaft 76 is rotatably mounted on the bottom of the fixed platform 8. The two ends are respectively provided with a bevel gear 761 and a bevel gear 762. The drive shaft 72 is provided with a bevel gear 73 that meshes with the bevel gear 761. The bottom of the rotating drum 6 is provided with a bevel gear 61 that meshes with the bevel gear 762.

[0035] To address the issue that the components in the magnetic separation mechanism 5 need to operate in coordination to ensure uniform dispersion and sufficient magnetic separation of quartz sand, the drive mechanism 7 of this invention achieves precise linkage between the rotating drum 6 and the umbrella cover 75 through gear transmission.

[0036] Its working principle is as follows: After the motor 71 fixed on the frame 1 is started, the output end drives the gear 1 711 to rotate. Since the gear 1 711 meshes with the gear 2 721 at the bottom of the drive shaft 72, the rotation of the gear 1 711 will drive the gear 2 721 and the drive shaft 72 connected to it to rotate at the axis of the base 52. The top of the drive shaft 72 is directly connected to the umbrella cover 75. Therefore, the umbrella cover 75 rotates synchronously with the drive shaft 72 to achieve the guidance and dispersion of quartz sand. At the same time, the bevel tooth 2 73 on the drive shaft 72 meshes with the bevel tooth 3 761 at one end of the transmission shaft 76. The rotation of the drive shaft 72 will drive the transmission shaft 76 to rotate. The bevel tooth 4 762 at the other end of the transmission shaft 76 meshes with the bevel tooth 1 61 at the bottom of the rotating drum 6, thereby transmitting power to the rotating drum 6 and causing the rotating drum 6 to rotate inside the upper shell 51.

[0037] Through this series of gear and bevel gear meshing transmission, the power of motor 71 is transmitted to drive shaft 72 (driving umbrella 75) and rotating drum 6 respectively, ensuring that umbrella 75 and rotating drum 6 rotate in coordination according to the set transmission ratio and in the same direction, providing stable power support for the dispersion, conveying and subsequent iron filings separation of quartz sand in magnetic separation mechanism 5, and ensuring that the magnetic separation process is carried out efficiently.

[0038] Combined with appendix Figure 3 and attached Figure 5As shown, multiple sets of pushing mechanisms 9 are evenly installed on the fixed platform 8. The pushing mechanism 9 includes a fixed push plate 92 that cooperates with the protective cover 74 and a movable push plate 93 that cooperates with the inner wall of the rotating drum 6. The fixed platform 8 is provided with an inner scraper 82 and an outer scraper 86. The inner scraper 82 and the outer scraper 86 scrape off the material on the protective cover 74 and the rotating drum 6 respectively, and the material enters the discharge platform 521 inside the base 52 and the discharge trough 53 outside the upper shell 51 respectively.

[0039] Combined with appendix Figure 5 and attached Figure 12 As shown, the pushing mechanism 9 also includes a column 91 fixed on the fixed platform 8, a plurality of fixed push plates 92 fixed in a row on the column 91, and a plurality of movable push plates 93 rotatably mounted in a row on the column 91. The fixed push plates 92 and movable push plates 93 of the multiple sets of pushing mechanisms 9 are staggered, and the tilting direction of the fixed push plates 92 and movable push plates 93 of one set of pushing mechanisms 9 is opposite to the tilting direction of the fixed push plates 92 and movable push plates 93 of the other pushing mechanisms 9.

[0040] To address the problem of incomplete separation of quartz sand and iron filings during magnetic separation, which can lead to iron filings being encased in quartz sand or quartz sand being mixed with iron filings, the feeding mechanism 9 of this invention achieves full tumbling and separation of materials through the synergistic action of a fixed pusher plate 92 and a movable pusher plate 93.

[0041] Its working principle is as follows: multiple sets of pushing mechanisms 9 are evenly installed on the fixed platform 8. The column 91 of each set of pushing mechanisms 9 is fixed on the fixed platform 8. The fixed push plates 92 in rows are fixed to the column 91 and cooperate with the protective cover 74. The movable push plates 93 in rows are rotatably set on the column 91 and cooperate with the inner wall of the rotating drum 6. The fixed push plates 92 and movable push plates 93 of the multiple sets of pushing mechanisms 9 are staggered, and the tilt direction of the push plates of one set is opposite to that of the other sets.

[0042] When the rotating drum 6 rotates, the movable push plate 93 rotates in a specific area, causing the tilt angle of the movable push plate 93 to flip by 90°, producing a reverse tilting effect. Through the staggered setting and reverse tilting structural design, the quartz sand on the rotating drum 6 is agitated in multiple directions and angles, which facilitates the exposure of iron filings in the quartz sand. The fixed push plate 92 can scrape the iron filings adsorbed on the protective cover 74. Through the staggered setting and reverse tilting structural design, the iron filings adsorbed on the protective cover 74 are pushed down by multiple fixed push plates 92, while one fixed push plate 92 pushes them up. Overall, the iron filings are in the process of moving downward. Under the agitation of the fixed push plate 92, the quartz sand mixed in the iron filings is dislodged. The overall downward pushing effect of the fixed push plate 92 on the iron filings makes it easier to remove the iron filings from the protective cover 74.

[0043] To improve the iron filings removal effect and facilitate the discharge of quartz sand, the inner scraper 82 and outer scraper 86 on the fixed platform 8 scrape off the fully separated iron filings and quartz sand from the protective cover 74 and the rotating drum 6, respectively. The iron filings are pushed to the working area of ​​the inner scraper 82 by the fixed pusher plate 92. The inner scraper 82 further removes the iron filings from the magnetic field and the iron filings fall into the discharge platform 521 inside the base 52. When the quartz sand falls slowly with the rotating drum 6, it moves upward after hitting the inclined outer scraper 86 to prevent the quartz sand from accumulating in the rotating drum 6. Then the quartz sand enters the discharge trough 53 outside the upper shell 51. The stirring action of the pushing mechanism 9 on the rotating material further improves the thoroughness and efficiency of magnetic separation.

[0044] Combined with appendix Figure 13 and attached Figure 14 As shown, a lever 96 is hinged to the column 91. The ends of the movable push plate 93 and the lever 96 that extend into the inner cavity of the column 91 are respectively provided with gear three 94 and gear four 97. A rack 95 that meshes with gear three 94 and gear four 97 is slidably provided in the inner cavity of the column 91. A torsion spring 98 connected to the column 91 is provided on the lever 96. An arc-shaped plate 65 that cooperates with the lever 96 is provided on the inner side of the rotating cylinder 6.

[0045] To address the uncontrollable rotation range and timing of the movable push plate 93, this invention utilizes an arc-shaped plate 65 in conjunction with a lever 96 to generate a compound motion in the movable push plate 93, thereby enhancing the separation effect. The working principle is as follows: the lever 96 on the column 91 and the movable push plate 93 are respectively engaged with a gear 4 97 and a gear 3 94 within the inner cavity of the column 91 via a rack 95. The lever 96 is also connected to the column 91 via a torsion spring 98. As the arc-shaped plate 65 inside the rotating drum 6 rotates, it periodically pushes the lever 96 to swing. The swinging of the lever 96 drives the gear 4 97 to rotate, and through the meshing transmission of the rack 95, the gear 3 94 rotates synchronously, thereby driving the movable push plate 93 to rotate. When the arc-shaped plate 65 disengages from the lever 96, the elastic force of the torsion spring 98 resets the lever 96. During the reset process, the gear 4 97 rotates in the opposite direction, and through the rack 95, it drives the gear 3 94 and the movable push plate 93 to swing in the opposite direction.

[0046] Through this process, the movable push plate 93 will oscillate periodically under the coordinated action of the lever 96, gear rack 95 and torsion spring 98, thereby producing an angle flipping effect. Under the guidance of the movable push plate 93, the quartz sand on the rotating drum 6 will be generally pushed upward by the movable push plate 93, and pushed downward at specific positions. Combined with the staggered setting and reverse tilting structure of the fixed push plate 92, the stirring force and angle change of the material between the rotating drum 6 and the protective cover 74 are further enhanced, making the separation of quartz sand and iron filings more thorough.

[0047] Combined with appendix Figure 3 and attached Figure 6As shown, the radius of the upper part of the inner wall of the rotating drum 6 is larger than the radius of the lower part of the inner wall, forming an inverted conical cavity. Multiple deceleration rings 63 are provided on the inner wall of the rotating drum 6. The deceleration rings 63 are slightly protruding on the inner wall of the rotating drum 6. The movable push plate 93 is offset from the deceleration rings 63. The rotating drum 6 is provided with a discharge port 64. The outer scraper 86 is provided at the discharge trough 53. When the discharge port 64 rotates to the discharge trough 53, the material blocked by the outer scraper 86 is thrown into the discharge trough 53 through the discharge port 64.

[0048] Combined with appendix Figure 6 Appendix Figure 9 and attached Figure 10 As shown, the top of the fixed platform 8 is an inclined surface, and an annular groove 84 is provided on the inclined surface. An annular plate 62 is provided on the inner side of the bottom of the rotating drum 6. The annular plate 62 extends into the annular groove 84. A fixed rod 85 is provided on the fixed platform 8. An outer scraper 86 is connected to the fixed rod 85. A scraper 87 that cooperates with the annular plate 62 is provided at the bottom of the outer scraper 86. An anti-overflow plate 88 is provided on the side of the scraper 87 near the protective cover 74.

[0049] To address the issues of insufficient magnetic separation due to excessively fast material descent within the rotating drum 6, and the problems of material leakage and incomplete separation during discharge, this invention optimizes the structure of the rotating drum 6 and the material shoveling assembly to achieve efficient separation and precise discharge. Its working principle is as follows: the upper radius of the inner wall of the rotating drum 6 is larger than the lower radius, forming an inverted conical cavity. Combined with a slightly protruding deceleration ring 63 on the inner wall, when the rotating drum 6 rotates, the quartz sand generally moves downwards along the inner wall under the influence of centrifugal force and gravity. However, due to the inclined support force of the inner wall of the rotating drum 6 on the material and the centrifugal force during material rotation, the falling speed of the quartz sand slows down. The deceleration ring 63 slows down the material's descent speed and promotes its tumbling, extending the contact time with the magnetic field of the electromagnet 89. Simultaneously, the movable push plate 93 and the deceleration ring 63 are staggered to avoid mutual interference while enhancing the agitation effect on the material, making it easier for iron filings to be adsorbed.

[0050] When the material rotates to the lower part with the rotating drum 6, the discharge port 64 on the rotating drum 6 rotates to the discharge trough 53 position. The outer scraper 86 will block the material at this point. Under the action of centrifugal force, the material is thrown into the discharge trough 53 through the discharge port 64 to complete the collection of quartz sand. The inclined surface at the top of the fixed platform 8 facilitates the falling quartz sand to slide towards the rotating drum 6. The inner ring plate 62 at the bottom of the rotating drum 6 extends into the ring groove 84 of the fixed platform 8, so that the material falls smoothly from the inclined surface at the top of the fixed platform 8 onto the rotating ring plate 62. The bottom of the outer scraper 86 connected to the rod 85 is equipped with a shovel 87. When the rotating drum 6 rotates, the shovel 87 cooperates with the ring plate 62 to scrape the material on the ring plate 62 onto the outer scraper 86. Through the material compression, the material gradually moves upward. The anti-overflow plate 88 on the side near the protective cover 74 prevents the scraped material from overflowing towards the protective cover 74. When the discharge port 64 rotates to the discharge trough 53, the material blocked by the outer scraper 86 is thrown or squeezed into the discharge trough 53 through the discharge port 64, realizing the discharge of quartz sand.

[0051] Combined with appendix Figure 3 Appendix Figure 7 Appendix Figure 9 and attached Figure 11 As shown, the bottom of the protective cover 74 is tapered inward, and the bottom of the fixed platform 8 is provided with a ring cover 81 outside the tapered opening of the protective cover 74. The inner scraper 82 is located inside the ring cover 81 and cooperates with the tapered opening at the bottom of the protective cover 74. The bottom of the inner scraper 82 is provided with a feeding trough 83, which is connected to the top cavity of the discharge platform 521.

[0052] Combined with appendix Figure 3 Appendix Figure 7 and attached Figure 11 As shown, the discharge platform 521 is longitudinally slidably disposed in the internal cavity of the base 52. The receiving plate of the discharge platform 521 is inclined, and the bottom is provided with a bumper 522. The drive shaft 72 is provided with a bumper 722 that cooperates with the bumper 522. The frame 1 is provided with a fixed groove plate 54, and the discharge platform 521 is provided with a feeding groove 523 that cooperates with the fixed groove plate 54.

[0053] To address the problem of iron filings adsorbed on the protective cover 74 being difficult to completely remove and prone to clogging during the discharge process, this invention achieves efficient cleaning and smooth conveying of iron filings by optimizing the structure of the inner scraper 82 and the design of the discharge platform 521. The working principle is as follows: Under the push of the fixed push plate 92, the iron filings are gradually pushed to the bottom constriction of the protective cover 74. An inner scraper 82 is set inside the ring cover 81 at the bottom of the fixed platform 8. The inner scraper 82 fits tightly with the bottom constriction of the protective cover 74. When the protective cover 74 rotates, the inner scraper 82 can push the iron filings gathered at the constriction downward, causing them to leave the magnetic field range and fall into the discharge trough 83 at the bottom of the inner scraper 82, and then enter the discharge platform 521 through the discharge trough 83.

[0054] The receiving plate on the discharge platform 521 is inclined to facilitate the sliding of iron filings. When the drive shaft 72 rotates, it drives the impact rod 722 to rotate synchronously. The impact rod 722 periodically hits the impact platform 522 at the bottom of the discharge platform 521, causing the discharge platform 521 to vibrate longitudinally. This prevents iron filings from accumulating and clogging on the receiving plate. At the same time, the vibration causes the iron filings to slide along the inclined receiving plate to the feeding trough 523 and fall onto the fixed trough plate 54. The fixed trough plate 54 smoothly transports the iron filings to the external collection structure. Through the precise scraping of the inner scraper 82 and the synergistic effect of the vibration feeding of the discharge platform 521, the iron filings are thoroughly separated and transported smoothly.

[0055] The inward-contracting structure at the bottom of the protective cover 74 is to prevent the falling quartz sand from mixing with the accumulated iron filings. The ring cover 81 is located at the constricted position of the protective cover 74, and its maximum outer diameter is smaller than the outer diameter of the upper part of the protective cover 74, thus preventing quartz sand from falling into the ring cover 81. The ring cover 81 also prevents the material scooped up by the shovel plate 87 on the ring plate 62 from splashing into the ring cover 81, further improving the separation effect.

[0056] Combined with appendix Figure 1 Appendix Figure 2 and attached Figure 3 As shown, the material distribution mechanism 3 includes a feeding box 31, a distribution pipe 32, and a slow-feeding box 33. One end of the feeding conveyor belt 2 extends into the feeding box 31. Multiple slow-feeding boxes 33 are connected to the feeding box 31 through the distribution pipe 32. The slow-feeding box 33 is an inverted cone-shaped box. Its bottom is connected to one end of the conveyor box 41. The other end of the conveyor box 41 is connected to the top inlet of the upper shell 51. The upper shell 51 is provided with a material collection inclined plate 511 at the inlet to concentrate the material at the top of the umbrella cover 75.

[0057] Combined with appendix Figure 1 Appendix Figure 2 and attached Figure 4 As shown, a conveying mechanism 4 is provided below the material distribution mechanism 3. The conveying mechanism 4 includes a conveying box 41 that communicates with the slow conveying box 33 and the upper shell 51. A movable plate 43 is hinged inside the conveying box 41. A fixed plate 42 is provided above the movable plate 43. Both the fixed plate 42 and the movable plate 43 are provided with staggered pressure strips 45. A cylinder 44 is hinged on the upper shell 51. The output end of the cylinder 44 is hinged to the bottom of the movable plate 43.

[0058] To address the issues of uneven distribution, conveying blockage, and unstable feed rate of quartz sand before it enters the magnetic separation mechanism 5, the material distribution mechanism 3 and the conveying mechanism 4 of this invention achieve uniform and stable material supply through graded processing and controllable conveying.

[0059] Its working principle is as follows: the feeding conveyor belt 2 transports the quartz sand to the feed box 31 of the distribution mechanism 3. The quartz sand in the feed box 31 is diverted to the corresponding slow conveying box 33 through multiple distribution pipes 32. The inverted cone-shaped slow conveying box 33 uses gravity to make the quartz sand naturally converge and slows down the conveying volume through the bottom narrowing, so as to achieve the initial dispersion of quartz sand to the conveying mechanism 4. In order to avoid the quartz sand from clogging in the slow conveying box 33, an agitator rod extending into the bottom outlet of the slow conveying box 33 can be set on the movable plate 43. The agitator rod vibrates with the vibration of the movable plate 43 to achieve a stable discharge effect.

[0060] After the quartz sand at the bottom of the slow-feed box 33 enters the conveyor box 41, the fixed plate 42 and the movable plate 43 inside the conveyor box 41 are provided with misaligned pressure strips 45. The cylinder 44 on the upper shell 51 drives the movable plate 43 to swing back and forth around the hinge point, so that the gap between the movable plate 43 and the fixed plate 42 changes. Together with the misaligned pressure strips 45, it forms a squeezing and pushing effect on the quartz sand, which can not only break up any possible agglomerated quartz sand, but also control the conveying volume and further disperse the material.

[0061] After being processed by the conveyor box 41, the quartz sand is transported to the top inlet of the upper shell 51, which is connected to the conveyor box 41. The collecting inclined plate 511 at the inlet of the upper shell 51 guides the dispersed quartz sand to the top of the umbrella cover 75. As the quartz sand falls along the umbrella cover 75, the umbrella cover 75 will drive the quartz sand to rotate. Grooves can be set on the umbrella cover 75 to further enhance the rotation effect. The bottom edge of the umbrella cover 75 is close to the inner wall of the rotating drum 6, so that after the material is thrown onto the rotating drum 6, most of it will rotate with the rotating drum 6, and a part will bounce back and fall freely onto the fixed platform 8. This part of the material will be scooped up by the shovel plate 87, and after being squeezed and raised, it will enter the magnetic field for separation.

[0062] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A purification device for the production of quartz sand filter media, comprising a frame (1), a feeding conveyor belt (2), a material distribution mechanism (3), and a magnetic separation mechanism (5) on the frame (1), wherein an electromagnet (89) is provided inside the magnetic separation mechanism (5), characterized in that: The magnetic separation mechanism (5) includes an upper housing (51) and a base (52). A rotating drum (6) is rotatably disposed inside the upper housing (51). A driving mechanism (7) is disposed at the bottom of the base (52). The driving mechanism (7) includes a motor (71), a drive shaft (72), and a transmission shaft (76). The motor (71) drives the drive shaft (72) to rotate at the axis of the base (52). A canopy (75) is disposed at the top of the drive shaft (72), and a protective cover (74) is disposed at the bottom of the canopy (75). The drive shaft (72) drives the rotating drum (6) to rotate through the transmission shaft (76). A fixed platform (8) is disposed on the base (52). An electromagnet (89) is located inside the protective cover (74) and mounted on a fixed platform (8). The fixed platform (8) is provided with multiple sets of pushing mechanisms (9). The pushing mechanism (9) includes a fixed push plate (92) that cooperates with the protective cover (74) and a movable push plate (93) that cooperates with the inner wall of the rotating drum (6). The fixed platform (8) is provided with an inner scraper (82) and an outer scraper (86). The inner scraper (82) and the outer scraper (86) scrape off the material on the protective cover (74) and the rotating drum (6) respectively, and enter the discharge platform (521) inside the base (52) and the discharge trough (53) outside the upper shell (51) respectively.

2. The impurity removal equipment for quartz sand filter media production according to claim 1, characterized in that: The pushing mechanism (9) also includes a column (91) fixed on a fixed platform (8), multiple fixed push plates (92) fixed in a row on the column (91), and multiple movable push plates (93) rotatably mounted on the column (91) in a row. The fixed push plates (92) and movable push plates (93) of multiple sets of pushing mechanisms (9) are staggered, and the tilting direction of the fixed push plates (92) and movable push plates (93) of one set of pushing mechanisms (9) is opposite to the tilting direction of the fixed push plates (92) and movable push plates (93) of the other pushing mechanisms (9).

3. The impurity removal equipment for quartz sand filter media production according to claim 2, characterized in that: The column (91) is hinged with a lever (96). The ends of the movable push plate (93) and the lever (96) that extend into the inner cavity of the column (91) are respectively equipped with gear three (94) and gear four (97). A rack (95) that meshes with gear three (94) and gear four (97) is slidably provided in the inner cavity of the column (91). A torsion spring (98) that is connected to the column (91) is provided on the lever (96). An arc plate (65) that cooperates with the lever (96) is provided on the inner side of the rotating cylinder (6).

4. The impurity removal equipment for quartz sand filter media production according to claim 1, characterized in that: The radius of the upper part of the inner wall of the rotating drum (6) is greater than the radius of the lower part of the inner wall, forming an inverted conical cavity. Multiple deceleration rings (63) are provided on the inner wall of the rotating drum (6). The movable push plate (93) is staggered with the deceleration rings (63). The rotating drum (6) is provided with a discharge port (64). An outer scraper (86) is provided at the discharge trough (53). When the discharge port (64) rotates to the discharge trough (53), the material blocked by the outer scraper (86) is thrown into the discharge trough (53) through the discharge port (64).

5. The impurity removal equipment for quartz sand filter media production according to claim 4, characterized in that: The top of the fixed platform (8) is an inclined surface, and an annular groove (84) is provided on the inclined surface. An annular plate (62) is provided on the inner side of the bottom of the rotating drum (6). The annular plate (62) extends into the annular groove (84). A fixed rod (85) is provided on the fixed platform (8). An outer scraper (86) is connected to the fixed rod (85). A shovel plate (87) that cooperates with the annular plate (62) is provided at the bottom of the outer scraper plate (86). An anti-overflow plate (88) is provided on the side of the shovel plate (87) near the protective cover (74).

6. The impurity removal equipment for quartz sand filter media production according to claim 1, characterized in that: The bottom of the protective cover (74) is tapered inward. The bottom of the fixed platform (8) is provided with a ring cover (81) outside the tapered opening of the protective cover (74). The inner scraper (82) is located inside the ring cover (81) and cooperates with the tapered opening at the bottom of the protective cover (74). The bottom of the inner scraper (82) is provided with a feeding trough (83), which is connected to the top cavity of the discharge platform (521).

7. The impurity removal equipment for quartz sand filter media production according to claim 1, characterized in that: The discharge platform (521) is longitudinally slidably disposed in the cavity inside the base (52). The receiving plate of the discharge platform (521) is inclined, and the bottom is provided with a bumper (522). The drive shaft (72) is provided with a bumper (722) that cooperates with the bumper (522). The frame (1) is provided with a fixed groove plate (54), and the discharge platform (521) is provided with a feeding groove (523) that cooperates with the fixed groove plate (54).

8. The impurity removal equipment for quartz sand filter media production according to claim 1, characterized in that: Below the material distribution mechanism (3) is a conveying mechanism (4). The conveying mechanism (4) includes a conveying box (41) that communicates with the material distribution mechanism (3) and the upper housing (51). A movable plate (43) is hinged inside the conveying box (41). A fixed plate (42) is provided above the movable plate (43). Both the fixed plate (42) and the movable plate (43) are provided with staggered pressure strips (45). A cylinder (44) is hinged on the upper housing (51). The output end of the cylinder (44) is hinged to the bottom of the movable plate (43).

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