Quartz sand raw material pretreatment and impurity removal equipment

Abstract

The utility model relates to non -metallic mineral processing technical field, and disclose a quartz sand raw material pretreatment and impurity removal equipment, including dust removal cylinder, first frame body second frame body and third frame body, first frame body top is provided with drive mechanism and feed structure, dust removal cylinder left side is open -type structure arrangement, dust removal cylinder is right high left low's oblique structure design, dust removal cylinder inner wall fixedly embeds with a tubular permanent magnet, permanent magnet top is provided with no magnetic gap area, the third frame body is located dust removal cylinder left side, the third frame body surface is provided with material receiving shell, material receiving shell is located dust removal cylinder left side below, the third frame body right side surface is fixed with the extension plate extending to dust removal cylinder inside, the extension plate top is provided with the impurity collection shell. The utility model solves the problem that the traditional equipment is not thorough and the cleaning mechanism is complex, has the remarkable advantage that operation is reliable, and maintenance is simple.

Description

Technical Field

[0001] This utility model relates to the field of non-metallic mineral processing technology, specifically to a pretreatment and impurity removal device for quartz sand raw materials. Background Technology

[0002] Quartz sand is a key raw material in the glass, ceramics, casting, and electronics industries, and its purity directly determines the performance and grade of the final product. However, naturally mined quartz sand ore usually contains various impurities, such as weakly magnetic minerals like hematite and limonite, as well as non-magnetic lightweight impurities like feldspar, clay lumps, and sawdust. If these impurities are not removed beforehand, they will not only reduce the whiteness and chemical stability of the quartz sand, but may also cause defects such as bubbles and stones during high-temperature melting, seriously affecting product quality. Therefore, efficient and economical pretreatment and impurity removal of quartz sand raw materials is a necessary step to improve its added value and applicability.

[0003] Existing technologies mostly employ external magnetic separators or traditional permanent magnet drums, which suffer from insufficient adsorption of weakly magnetic impurities and the need for additional hydraulic cleaning. This not only increases system complexity and energy consumption but also easily leads to clogging when handling sticky or wet materials, resulting in frequent maintenance and affecting the stability of continuous production. Therefore, developing a simple and reliable impurity removal device that integrates high-efficiency magnetic separation and self-cleaning is of great significance.

[0004] Therefore, we propose a pretreatment and impurity removal device for quartz sand raw materials to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a pretreatment and impurity removal device for quartz sand raw materials, so as to solve the problems of poor cleaning effect of magnetic adsorption devices, complex cleaning structure, easy clogging, and frequent maintenance mentioned in the background art.

[0006] This utility model provides the following technical solution: a quartz sand raw material pretreatment and impurity removal device, including a dust removal drum, a first frame, a second frame, and a third frame. The first frame is provided with a drive mechanism and a feeding structure at its top. The dust removal drum has an open structure on its left side and is designed with a right-high-left-low tilted structure. A tubular permanent magnet is fixedly embedded in the inner wall of the dust removal drum. The top of the permanent magnet has a non-magnetic notch area. The third frame is located on the left side of the dust removal drum. A material receiving shell is provided on the surface of the third frame. The material receiving shell is located below the left side of the dust removal drum. An extension plate extending into the interior of the dust removal drum is fixed on the right side surface of the third frame. An impurity collection shell is provided above the extension plate. A cleaning scraper is fixed at the bottom of the inner wall of the impurity collection shell. The top of the cleaning scraper is slidably connected to the top of the inner wall of the dust removal drum.

[0007] Preferably, the top drive structure of the first frame includes a geared motor fixed to its surface, a connecting rod fixed to the output shaft of the geared motor, a gear fixed to the left end of the connecting rod, an extension ring fixed to the right surface of the dust removal roller, a toothed ring fixed to the outer wall of the extension ring, and the toothed ring meshing with the gear.

[0008] Preferably, the top feeding structure of the first frame includes a mounting frame, the bottom of which is fixedly connected to the top of the first frame, a feeding bend is fixedly fixed through the surface of the mounting frame, the top of the feeding bend is connected to a feeding hopper, a through groove is opened on the right side surface of the dust removal roller, a support bearing is fixedly fixed on the inner wall of the through groove, and the inner ring of the support bearing is fixedly connected to the surface of the feeding bend.

[0009] Preferably, the top of the second frame is fixed with multiple wheel frames, and the surface of each wheel frame is rotatably connected to a support wheel, the surface of which is slidably connected to the bottom surface of the dust removal drum.

[0010] Preferably, the impurity removal scraper is made of polyurethane and has an inverted V-shaped top.

[0011] Preferably, two opposing mounting shells are fixed to the top of the extension plate, and T-shaped plates are fixed to both the front and rear sides of the impurity collection shell. The surface of the mounting shell is provided with a T-shaped groove for fitting the T-shaped plate.

[0012] Preferably, the top of the feed hopper is rectangular and the bottom is conical.

[0013] Preferably, the tilt angle of the dust removal roller is 5° to 15°.

[0014] This utility model has the following beneficial effects: 1. This quartz sand raw material pretreatment and impurity removal equipment effectively improves the efficiency and convenience of quartz sand raw material pretreatment and impurity removal. The core technology lies in the combination of a rotating drum with a built-in permanent magnet and a fixed scraper assembly, achieving efficient adsorption and automatic cleaning of weakly magnetic impurities. This design abandons the traditional complex external cleaning mechanism, completing the interception, demagnetization, and collection of impurities through a purely mechanical method during the continuous operation of the drum. This not only significantly improves the thoroughness of impurity removal but also fundamentally avoids the risk of clogging in the cleaning mechanism, ensuring continuous and stable production operation.

[0015] 2. This quartz sand raw material pretreatment and impurity removal equipment utilizes the material's own weight for conveying via an inclined drum, eliminating the need for additional power. From feeding, magnetic separation, impurity removal to clean material discharge, a highly efficient and continuous operation process is formed. This equipment provides the quartz sand processing industry with a pretreatment and impurity removal solution that is simple in structure, easy to operate, and has low maintenance costs. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the drive mechanism in this utility model; Figure 5 This is a cross-sectional view of the feeding structure in this utility model; Figure 6 This is a schematic diagram of the structure of the dust removal roller and the permanent magnet in this utility model; Figure 7 This is a schematic diagram of the structure of the impurity collection shell in this utility model.

[0017] In the diagram: 1. Dust removal roller; 2. First frame; 3. Drive mechanism; 301. Gear motor; 302. Connecting rod; 303. Gear; 304. Extension ring; 305. Gear ring; 4. Second frame; 5. Third frame; 6. Extension plate; 7. Material receiving shell; 8. Permanent magnet; 9. Non-magnetic gap area; 10. Impurity collection shell; 11. Impurity removal scraper; 12. Mounting shell; 13. T-shaped plate; 14. Mounting frame; 15. Feeding bend; 16. Feed hopper; 17. Support bearing; 18. Wheel frame; 19. Support wheel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: This example aims to address the problems of poor cleaning effect of magnetic adsorption devices on adsorbed impurities, complex cleaning structure, easy clogging, and frequent maintenance. Please refer to [link / reference]. Figures 1-7A pretreatment and impurity removal device for quartz sand raw materials includes a dust removal drum 1, a first frame 2, a second frame 4, and a third frame 5. The first frame 2 is equipped with a drive mechanism 3 and a feeding structure on its top. The dust removal drum 1 has an open structure on its left side and is designed with a right-high-left-low tilted structure. A tubular permanent magnet 8 is fixedly embedded in the inner wall of the dust removal drum 1. The top of the permanent magnet 8 has a non-magnetic notch area 9. The third frame 5 is located on the left side of the dust removal drum 1. A material receiving shell 7 is provided on the surface of the third frame 5. The material receiving shell 7 is located below the left side of the dust removal drum 1. An extension plate 6 extending into the interior of the dust removal drum 1 is fixed on the right side surface of the third frame 5. An impurity collection shell 10 is provided above the extension plate 6. An impurity removal scraper 11 is fixed at the bottom of the inner wall of the impurity collection shell 10. The top of the impurity removal scraper 11 is slidably connected to the top of the inner wall of the dust removal drum 1.

[0020] Through the above technical solution, the dust removal drum 1 is driven by the drive mechanism 3 to rotate continuously and slowly. The tubular permanent magnet 8 inside rotates synchronously, generating a strong magnetic field. The quartz sand raw material is fed into the right end of the drum from the feeding structure and naturally slides downward to the left due to the inclined structure design of the drum, which is higher on the right and lower on the left. During this process, magnetic impurities in the material are attracted by the magnetic field of the permanent magnet 8 and fixed to the inner wall surface of the dust removal drum 1, rotating upward with the drum. The impurity removal scraper 11 fixed on the top of the impurity collection shell 10 always keeps its top tip in contact with the inner wall of the dust removal drum 1. When the inner wall of the dust removal drum 1, which is adsorbed with impurities, rotates to this point, the impurity removal scraper 11 acts like a "wall," blocking the impurities that are trying to pass through. Since this area is still within the strong magnetic field range of the permanent magnet 8 and has not yet turned to the non-magnetic gap area 9, the magnetic force firmly holds the impurities, preventing them from falling. Therefore, impurities accumulate on one side of the impurity removal scraper 11. The dust removal drum 1 continues to rotate. When the area where impurities are accumulated moves from the permanent magnet 8 area to the non-magnetic gap area 9, the magnetic field disappears. The impurities that were previously "pressed" onto the inner wall of the dust removal drum 1 by the magnetic force and blocked by the impurity removal scraper 11 instantly lose their adsorption force. Under the action of gravity, these demagnetized impurities naturally fall off the drum wall and are "guided" or "scraped" off by the stationary scraper, falling into the impurity collection shell 10 directly below, completing the collection. The purified quartz sand continues to slide down to the left along the inner wall of the drum and is finally discharged from the open structure on the left side, where it is received by the material receiving shell 7. Through the unique design of permanent magnet 8 and non-magnetic gap area 9, combined with fixed impurity removal scraper 11, the automatic and continuous adsorption and stripping of magnetic impurities is achieved during the continuous rotation of the drum. This greatly simplifies the process of cleaning the magnetic rollers that traditional magnetic separators require to stop or use complex external mechanisms. Its purely mechanical design ensures reliable operation and low maintenance costs. At the same time, the inclined dust removal drum 1 ensures that the material is automatically conveyed and discharged by gravity without the need for additional conveying power.

[0021] The top drive structure of the first frame 2 includes a geared motor 301 fixed to its surface, a connecting rod 302 fixed to the output shaft of the geared motor 301, a gear 303 fixed to the left end of the connecting rod 302, an extension ring 304 fixed to the right surface of the dust removal roller 1, a toothed ring 305 fixed to the outer wall of the extension ring 304, and the toothed ring 305 meshing with the gear 303.

[0022] With the above technical solution, after the geared motor 301 starts, its output shaft drives the connecting rod 302 to rotate with the gear 303 fixed at its left end; the gear 303 meshes with the toothed ring 305 fixed on the right extension ring 304 of the dust collector drum 1; the gear 303 drives the toothed ring 305, thereby transmitting power to the dust collector drum 1, so that it can rotate continuously at a stable speed and torque.

[0023] The top feeding structure of the first frame 2 includes a mounting frame 14. The bottom of the mounting frame 14 is fixedly connected to the top of the first frame 2. A feeding bend 15 is fixedly fixed through the surface of the mounting frame 14. The top of the feeding bend 15 is connected to the feeding hopper 16. A through groove is opened on the right side surface of the dust removal roller 1. A support bearing 17 is fixed on the inner wall of the through groove. The inner ring of the support bearing 17 is fixedly connected to the surface of the feeding bend 15.

[0024] Through the above technical solution, the quartz sand raw material is fed into the feed hopper 16 and guided to the inside of the right end of the dust collector drum 1 via the feeding bend 15. The feeding bend 15 is dynamically connected to the right side wall of the dust collector drum 1 through the support bearing 17. This means that when the dust collector drum 1 rotates, the feeding bend 15 and the feed hopper 16 are kept fixed by the mounting bracket 14, thereby ensuring that the material can be continuously, stably and centrally fed into the continuously rotating drum without leakage or interference.

[0025] The top of the second frame 4 is fixed with multiple wheel frames 18, and the surface of the wheel frames 18 is rotatably connected with support wheels 19. The surface of the support wheels 19 is slidably connected to the bottom surface of the dust removal roller 1.

[0026] Through the above technical solution, the second frame 4 supports the dust removal roller 1 from the bottom through multiple wheel frames 18 set on its top and support wheels 19 installed on it; when the dust removal roller 1 rotates under the drive mechanism 3, its outer wall surface and the rolling surface of the support wheels 19 undergo relative rolling friction. These support wheels 19 work together to provide stable and evenly distributed radial support for the inclined dust removal roller 1 with a large length-to-diameter ratio.

[0027] The impurity removal scraper 11 is made of polyurethane and has an inverted V-shaped top.

[0028] Through the above technical solution, the impurity removal scraper 11 made of polyurethane material has excellent wear resistance and appropriate elasticity. Its inverted V-shaped structure at the top can more effectively "scoop up" and "collect" impurities that have lost their magnetic attraction when it slides in contact with the top of the inner wall of the dust removal drum 1. The tip of the inverted V-shape first contacts the impurities and peels them off from the drum wall. Then the impurities are guided to the middle along the two inclined surfaces and finally fall into the impurity collection shell 10. This process reduces the residue and accumulation of impurities in the contact area between the scraper and the drum.

[0029] Two opposing mounting shells 12 are fixed to the top of the extension plate 6. T-shaped plates 13 are fixed to both the front and rear sides of the impurity collection shell 10. T-shaped grooves are opened on the surface of the mounting shell 12 to accommodate the T-shaped plates 13.

[0030] Through the above technical solution, the mounting shell 12 at the top of the extension plate 6 cooperates with the T-shaped plate 13 fixed on both sides of the impurity collection shell 10 through the T-shaped groove opened on its surface; during installation, the T-shaped plate 13 is aligned with the T-shaped groove and slid in; during disassembly, the impurity collection shell 10 and the impurity removal scraper 11 on it can be removed together by reversing the operation.

[0031] The top of the feed hopper 16 is rectangular, and the bottom is conical.

[0032] Through the above technical solution, the rectangular opening at the top of the feed hopper 16 provides a large receiving area, which facilitates docking with upstream feeding equipment or accepting manual feeding; its bottom is designed with a conical structure, which can smoothly gather and shrink the received quartz sand raw materials to the bottom outlet, forming a gradually concentrated material flow, thereby effectively guiding the material into the feed bend 15 below.

[0033] The tilt angle of the dust removal roller 1 is 5° to 15°.

[0034] Through the above technical solution, the dust removal drum 1 is set at a specific tilt angle. This angle range ensures that after the quartz sand raw material enters the drum, it can generate a stable sliding motion along the inner wall of the drum in the axial direction to the lower left under the action of its own gravity. This sliding speed and the rotation speed of the drum work together to determine the residence time of the material in the drum, that is, the magnetic separation time, so that the material can be fully tumbled and exposed, thus giving magnetic impurities a sufficient chance to be captured by the magnetic field.

[0035] The specific working principle of this utility model is as follows: Quartz sand raw material is first fed into the top feed hopper 16. The material is stably conveyed through the feeding bend 15 to the inside of the right end of the dust collector drum 1. The reduction motor 301 in the drive mechanism 3 provides stable power to the dust collector drum 1 through the meshing of the gear 303 and the gear ring 305, enabling it to rotate continuously. The inclined dust collector drum 1 is supported at its bottom by multiple support wheels 19 on the second frame 4, ensuring operational stability. The material entering the drum slides to the lower left along the inner wall due to gravity. At this time, the tubular permanent magnet 8 fixed to the inner wall of the drum generates a strong magnetic field, adsorbing and fixing the magnetic impurities in the quartz sand to the inner wall surface of the drum. As the drum rotates, the adsorbed impurities are carried to the top area. Here, the impurity-removing scraper 11 fixed to the extension plate 6 plays a crucial role: when the drum wall adsorbing impurities rotates to this point, the impurities are first intercepted by the scraper; when this area rotates with the drum to the non-magnetic gap area 9 of the permanent magnet 8, the magnetic field disappears instantly, and the intercepted impurities slide down along the inverted V-shaped top of the scraper under the action of gravity, eventually falling into the quickly detachable impurity collection shell 10. The purified quartz sand continues to slide to the left and is discharged from the open structure on the left side of the drum, collected by the material receiving shell 7. The entire process achieves automatic feeding, efficient magnetic separation, automatic impurity stripping and classification collection through a purely mechanical structure, effectively solving the problems of incomplete impurity removal and complex cleaning mechanisms in traditional equipment, and has significant advantages such as reliable operation and simple maintenance.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pretreatment and impurity removal device for quartz sand raw materials, characterized in that: The assembly includes a dust removal roller (1), a first frame (2), a second frame (4), and a third frame (5). The first frame (2) is equipped with a drive mechanism (3) and a feeding structure on its top. The dust removal roller (1) has an open structure on its left side and an inclined structure with the right side higher than the left. A tubular permanent magnet (8) is fixedly embedded in the inner wall of the dust removal roller (1). The top of the permanent magnet (8) has a non-magnetic notch area (9). The third frame (5) is located on the left side of the dust removal roller (1). A material receiving shell (7) is provided on the surface of the third frame (5). The material receiving shell (7) is located below the left side of the dust removal roller (1). An extension plate (6) extending into the dust removal roller (1) is also provided on the right side surface of the third frame (5). An impurity collection shell (10) is provided above the extension plate (6). A cleaning scraper (11) is installed at the bottom of the inner wall of the impurity collection shell (10). The top of the cleaning scraper (11) is slidably connected to the top of the inner wall of the dust removal roller (1).

2. The quartz sand raw material pretreatment and impurity removal equipment according to claim 1, characterized in that: The top drive structure of the first frame (2) includes a geared motor (301) fixed on its surface. A connecting rod (302) is fixed to the output shaft of the geared motor (301). A gear (303) is fixed to the left end of the connecting rod (302). An extension ring (304) is fixed to the right surface of the dust removal roller (1). A toothed ring (305) is fixed to the outer wall of the extension ring (304). The toothed ring (305) meshes with the gear (303).

3. The quartz sand raw material pretreatment and impurity removal equipment according to claim 1, characterized in that: The top feeding structure of the first frame (2) includes a mounting frame (14). The bottom of the mounting frame (14) is fixedly connected to the top of the first frame (2). A feeding bend (15) is fixedly connected through the surface of the mounting frame (14). The top of the feeding bend (15) is connected to a feeding hopper (16). A through groove is opened on the right side surface of the dust removal roller (1). A support bearing (17) is fixed on the inner wall of the through groove. The inner ring of the support bearing (17) is fixedly connected to the surface of the feeding bend (15).

4. The quartz sand raw material pretreatment and impurity removal equipment according to claim 1, characterized in that: The second frame (4) has multiple wheel frames (18) fixed on its top. The surface of the wheel frame (18) is rotatably connected to a support wheel (19). The surface of the support wheel (19) is slidably connected to the bottom surface of the dust removal roller (1).

5. The quartz sand raw material pretreatment and impurity removal equipment according to claim 1, characterized in that: The impurity removal scraper (11) is made of polyurethane and has an inverted V-shaped top.

6. The quartz sand raw material pretreatment and impurity removal equipment according to claim 1, characterized in that: The extension plate (6) has two oppositely arranged mounting shells (12) fixed on its top. The impurity collection shell (10) has T-shaped plates (13) fixed on both its front and rear sides. The mounting shell (12) has a T-shaped groove on its surface to accommodate the T-shaped plates (13).

7. The quartz sand raw material pretreatment and impurity removal equipment according to claim 3, characterized in that: The top of the feed hopper (16) is rectangular and the bottom is conical.

8. The quartz sand raw material pretreatment and impurity removal equipment according to claim 1, characterized in that: The inclination angle of the dust removal roller (1) is 5° to 15°.

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