A grinding device and grinding process for the production of high-strength quartz sand

Abstract

The present invention belongs to the technical field of quartz sand production, and discloses a grinding device and a grinding process for producing high-strength quartz sand. The device includes a housing, a driving component located below the housing, and a discharge port located on the outer wall of the housing. It further includes: a grinding mechanism, which includes a screening component, a feeding component, and a first partition. The first partition is rotatably installed on the inner wall of the housing. Symmetrically installed on the lower end face of the first partition are fourth round rods. The lower end faces of the fourth round rods are rotatably installed with grinding wheels. The lower end faces of the grinding wheels are abutted against a second partition, and the outer wall of the second partition is fixedly installed on the housing. When the feeding component feeds materials, the driving component drives the grinding wheels to rotate through the first partition to perform grinding work. At the same time, the screening component separates and discharges qualified quartz sand, and the unqualified quartz sand continues to be ground. The present invention solves the problem that the existing grinding device cannot screen qualified particle sizes in time, resulting in over-grinding.

Description

Technical Field

[0001] The invention relates to the technical field of quartz sand production, in particular to a grinding device for producing high-strength quartz sand and a grinding process thereof. Background Art

[0002] Quartz sand is quartz particles obtained by crushing quartz stone. Quartz stone is a non-metallic mineral, a hard, wear-resistant, and chemically stable silicate mineral. Quartz sand is an important industrial mineral raw material and a non-hazardous chemical. It is widely used in industries such as glass, casting, ceramics, fireproofing, ferrosilicon smelting, metallurgical flux, metallurgy, construction, chemicals, plastics, rubber, abrasives, and filter media. As a key industrial raw material, quartz sand requires grinding during production to ensure that its particle size meets the requirements of various applications.

[0003] Currently, quartz sand grinding equipment typically involves directly feeding quartz stone into a grinding device for grinding. However, this method struggles to effectively control fineness requirements. During the grinding process, the inability to promptly screen out qualified particle sizes often leads to over-grinding, resulting in uneven and highly variable particle sizes in the produced quartz sand. This instability in particle size distribution not only prevents the sand from achieving uniformity but also compromises the grinding process, negatively impacting the quality and performance of the final product. Summary of the Invention

[0004] The purpose of the present invention is to provide a grinding device and a grinding process for producing high-strength quartz sand. The present invention solves the problem that the existing grinding device cannot timely screen the qualified particle size, resulting in over-grinding.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a grinding device for producing high-strength quartz sand, comprising a housing, a drive assembly located below the housing, and a discharge port located on the outer wall of the housing, and further comprising:

[0006] The grinding mechanism includes a screening assembly, a feeding assembly, and a first partition. The first partition is rotatably mounted on the inner wall of the shell. A fourth round rod is symmetrically mounted on the lower end surface of the first partition. A grinding wheel is rotatably mounted on the lower end surface of the fourth round rod. The lower end surface of the grinding wheel abuts against the second partition. The outer wall of the second partition is fixedly mounted on the shell. When the feeding assembly is feeding, the driving assembly drives the grinding wheel to rotate through the first partition to perform grinding. At the same time, the screening assembly separates and discharges qualified quartz sand, while unqualified quartz sand continues to be ground.

[0007] The screening component includes a vibration component and a second cylinder. Two fixed frames are evenly installed on the outer wall of the second cylinder. A screen is slidably installed on the inner wall of the fixed frame. A scraper is installed on the outer wall of the fixed frame. A first opening is formed on the outer wall of the fixed frame facing the second cylinder, and a second opening is formed on the second cylinder corresponding to the first opening.

[0008] The blanking component includes a jitter component and two blanking pipes. The two blanking pipes are symmetrically installed on the lower end surface of the first partition. A blanking port is formed on the outer wall of the first partition corresponding to the blanking pipe.

[0009] Preferably, the vibration component includes a ring. The outer wall of the ring is installed on the inner wall of the housing. A number of bumps are evenly spaced and installed on the upper end surface of the ring.

[0010] Preferably, a third round rod is fixedly installed on the upper end surface of the screen. The upper end surface of the third round rod penetrates through the first partition and is fixedly installed with a support seat. A limiting rod is rotatably installed on the support seat facing the housing side. The lower end surface of the limiting rod abuts against the bump.

[0011] Preferably, the jitter component includes a second ratchet. The lower end surface of the second ratchet is fixedly installed on the first partition. The upper end surface of the second ratchet abuts against a first ratchet. The upper end surface of the first ratchet is fixedly installed with a first baffle. The first baffle is slidably installed inside the housing.

[0012] Preferably, first round rods are symmetrically installed on the upper end surface of the first baffle. A support block is slidably installed on the outer wall of the first round rod. The support block is fixedly installed on the inner wall of the housing.

[0013] Preferably, a fourth baffle and a fifth baffle are respectively installed on the lower end surface of the first baffle, and the fourth baffle and the fifth baffle are respectively located on both sides of the first ratchet.

[0014] Preferably, a first cylinder is fixedly installed on the lower end surface of the second partition.

[0015] Preferably, the upper end surface of the second cylinder is fixedly connected to the first partition, and the lower end surface of the second cylinder abuts against the second partition.

[0016] Preferably, a second round rod is fixedly installed on the lower end surface of the first partition. A fan blade is installed on the outer wall of the second round rod. The fan blade is located inside the first cylinder.

[0017] Preferably, a grinding process for producing high-strength quartz sand includes the following steps:

[0018] The first step: Pour the quartz stone into the interior of the housing. At this time, the driving component works to drive the jitter component to jitter. The quartz stone enters the grinding wheel through the blanking port and the blanking pipe for grinding.

[0019] Step 2: The ground quartz stones are shoveled up by the scraper and enter the screen inside the fixed frame. At this time, the vibration component drives the screen to rotate up and down. The qualified quartz sand passes through the screen, the first opening, and the second opening and enters below the housing, and then is discharged from the discharge port.

[0020] Step 3: When the screen vibrates, the unqualified quartz sand will pass through the screen and reach the grinding wheel again for grinding until it is qualified.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] First, the present invention is provided with a screening component. When the second cylinder drives the scraper and the fixed frame to rotate, the scraper shovels up the quartz stones ground by the grinding wheel and makes them enter the screen inside the fixed frame. At this time, the screen and the first partition drive the third round rod to rotate. The third round rod drives the limiting rod to move on the convex block through the support seat. When the limiting rod is squeezed by the convex block, the screen moves upward in the fixed frame. When the convex block does not squeeze the limiting rod, the screen will drop due to its own and the gravity of the quartz sand. The screen completes vibration. The qualified quartz sand falls below the screen, then passes through the first opening, the second opening, and the first cylinder and falls into the housing, and is discharged from the discharge port. The unqualified quartz sand will overflow from the notch and be ground by the grinding wheel again until it is qualified, which can improve the uniformity of the quartz sand particles and prevent the over-grinding of the qualified quartz sand.

[0023] Second, the present invention is provided with a feeding component. When the first partition drives the second ratchet wheel to rotate, the second ratchet wheel will squeeze the first ratchet wheel. The first ratchet wheel will drive the first baffle to move up and down. The first baffle drives the quartz stones to shake, so that the quartz stones can quickly pass through the feeding port and then fall from the feeding pipe to the grinding wheel, preventing blockage when the quartz stones are fed.

[0024] Third, the present invention is provided with a fan blade. The fan blade rotates in the first cylinder, generating negative pressure in the first cylinder. The air flow enters the first cylinder from above the housing, which will accelerate the discharge of the qualified quartz sand below the screen. Description of the Drawings

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic diagram of the inside of the housing of the present invention;

[0027] Figure 3 is of the present invention Figure 2 schematic diagram of removing the fourth baffle;

[0028] Figure 4 is of the present invention Figure 3 schematic diagram of another perspective;

[0029] Figure 5For the present invention Figure 2 Cross-sectional view;

[0030] Figure 6 Schematic diagram of the fixed frame of the present invention;

[0031] Figure 7 For the present invention Figure 6 Cross-sectional view.

[0032] In the figure: 1. Outer shell; 101. Driving assembly; 2. Discharge port; 3. First round rod; 4. Support block; 5. First baffle; 6. Ring; 7. First partition; 8. Fixed frame; 9. Second partition; 10. First cylinder; 11. Second round rod; 12. Support seat; 13. Limit rod; 14. Protrusion; 15. Third round rod; 16. Scraper; 17. Grinding wheel; 18. Fourth round rod; 19. Fourth baffle; 1901. Fifth baffle; 20. First ratchet; 21. Second ratchet; 22. Feeding port; 23. Feeding pipe; 24. Sieve mesh; 25. Fan blade; 26. Notch; 27. First opening; 28. Second opening; 29. Second cylinder. Specific embodiments

[0033] To more clearly understand the purpose, technical solution and advantages of the present application, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments.

[0034] Please refer to Figures 1 to 7 , the present invention provides a technical solution: a grinding device for the production of high-strength quartz sand, including an outer shell 1, a driving assembly 101 located below the outer shell 1, the driving assembly 101 being a servo motor, and a discharge port 2 located on the outer wall of the outer shell 1, and further including:

[0035] A grinding mechanism, including a screening assembly, a feeding assembly and a first partition 7. The first partition 7 is rotatably installed on the inner wall of the outer shell 1. Fourth round rods 18 are symmetrically installed on the lower end face of the first partition 7. A grinding wheel 17 is rotatably installed on the lower end face of the fourth round rod 18. The lower end face of the grinding wheel 17 abuts against a second partition 9. The outer wall of the second partition 9 is fixedly installed on the outer shell 1. When the feeding assembly feeds materials, the driving assembly 101 drives the grinding wheel 17 to rotate through the first partition 7 to perform grinding work. At the same time, the screening assembly separates and discharges qualified quartz sand, and unqualified quartz sand continues to be ground;

[0036] The screening assembly includes a vibration assembly and a second cylinder 29. Two fixed frames 8 are evenly installed on the outer wall of the second cylinder 29. A sieve mesh 24 is slidably installed on the inner wall of the fixed frame 8. A scraper 16 is installed on the outer wall of the fixed frame 8. A first opening 27 is opened on the outer wall of the fixed frame 8 facing the second cylinder 29. A second opening 28 is opened on the second cylinder 29 corresponding to the first opening 27;

[0037] The blanking component includes a shaking component and two blanking pipes 23. The two blanking pipes 23 are symmetrically installed on the lower end face of the first partition plate 7, and blanking openings 22 are provided on the outer wall of the first partition plate 7 corresponding to the blanking pipes 23.

[0038] Further, as Figure 2 and Figure 3 shown, the vibration component includes a ring 6. The outer wall of the ring 6 is installed on the inner wall of the housing 1. A number of bumps 14 are evenly spaced and installed on the upper end face of the ring 6. A third round rod 15 is fixedly installed on the upper end face of the screen 24. The upper end face of the third round rod 15 penetrates through the first partition plate 7 and is fixedly installed with a support seat 12. A limiting rod 13 is rotatably installed on the side of the support seat 12 facing the housing 1. The lower end face of the limiting rod 13 abuts against the bump 14.

[0039] When the screen 24 moves, it drives the third round rod 15 to rotate. The third round rod 15 drives the support seat 12 to rotate. The support seat 12 drives the limiting rod 13 to rotate on the ring 6 and the bump 14. When the limiting rod 13 presses the bump 14, the limiting rod 13 drives the screen 24 to move upward through the support seat 12 and the third round rod 15. When the limiting rod 13 does not press the bump 14, the self - weight of the screen 24 drives the third round rod 15 to descend. The third round rod 15 drives the limiting rod 13 to abut against the ring 6 through the support seat 12, thereby completing the vibration of the screen 24 and screening the quartz sand.

[0040] Further, as Figure 3 shown, the shaking component includes a second ratchet wheel 21. The lower end face of the second ratchet wheel 21 is fixedly installed on the first partition plate 7. The upper end face of the second ratchet wheel 21 abuts against a first ratchet wheel 20. The upper end face of the first ratchet wheel 20 is fixedly installed with a first baffle 5. The first baffle 5 is slidably installed inside the housing 1. First round rods 3 are symmetrically installed on the upper end face of the first baffle 5. Support blocks 4 are slidably installed on the outer walls of the first round rods 3. The support blocks 4 are fixedly installed on the inner wall of the housing 1.

[0041] When the first partition plate 7 drives the second ratchet wheel 21 to rotate, the second ratchet wheel 21 presses the first ratchet wheel 20, and the first ratchet wheel 20 presses the first baffle 5. At this time, the first baffle 5 drives the first round rod 3 to slide on the support block 4. The first baffle 5 will prevent the first ratchet wheel 20 from rotating with the second ratchet wheel 21. The first baffle 5 will shake up and down inside the housing 1, so that the quartz stones can continuously descend and prevent blockage.

[0042] Further, as Figure 5 shown, fourth baffles 19 and fifth baffles 1901 are respectively installed on the lower end face of the first baffle 5, and the fourth baffles 19 and the fifth baffles 1901 are respectively located on both sides of the first ratchet wheel 20.

[0043] The fourth baffle 19 and the fifth baffle 1901 move up and down following the first baffle 5. The fourth baffle 19 can prevent quartz stones from entering between the first ratchet 20 and the second ratchet 21. The cooperation of the fourth baffle 19 and the fifth baffle 1901 can prevent the first ratchet 20 and the second ratchet 21 from deviating.

[0044] Further, as Figure 4 shown, a first cylinder 10 is fixedly installed on the lower end surface of the second partition 9.

[0045] Further, as Figure 5 shown, the upper end surface of the second cylinder 29 is fixedly connected to the first partition 7, and the lower end surface of the second cylinder 29 abuts against the second partition 9.

[0046] Further, as Figure 5 shown, a second round rod 11 is fixedly installed on the lower end surface of the first partition 7. A fan blade 25 is installed on the outer wall of the second round rod 11. The fan blade 25 is located inside the first cylinder 10. The second round rod 11 penetrates through the housing 1 downward and is fixedly connected to the output shaft of the drive assembly 101;

[0047] The drive assembly 101 drives the first partition 7 and the fan blade 25 to rotate through the second round rod 11. When the fan blade 25 rotates in the first cylinder 10, a negative pressure is generated, thereby accelerating the discharge of quartz sand.

[0048] Further, as Figure 6 shown, a notch 26 is provided on the outer wall of the fixed frame 8. The notch 26 is lower than the peripheral outer wall. Therefore, the quartz sand will preferentially pass through the notch 26 and enter the grinding wheel 17, avoiding the stagnation or accumulation of quartz sand.

[0049] Further, as Figure 7 shown, the bottom wall of the fixed frame 8 is inclined, facilitating the discharge of quartz sand.

[0050] In this embodiment, the grinding process for producing high-strength quartz sand includes the following steps:

[0051] First step: After connecting to an external power supply and a controller, first pour a certain amount of quartz stones into the housing 1, and then control the drive assembly 101 to rotate. The drive assembly 101 drives the second round rod 11 to rotate, and the second round rod 11 drives the first partition 7 and the fan blade 25 to rotate. At this time, the first partition 7 drives the second ratchet 21 to rotate, and the second ratchet 21 will squeeze the first ratchet 20. The first ratchet 20 will drive the first baffle 5 to move up and down, and the first baffle 5 drives the quartz stones to vibrate, increasing the fluidity of the quartz stones, so that the quartz stones can quickly pass through the feeding port 22 and then fall from the feeding pipe 23 to the grinding wheel 17;

[0052] When the first partition plate 7 rotates, it drives the grinding wheel 17 to rotate through the fourth round rod 18. The grinding wheel 17 moves synchronously with the material feeding pipe 23. At this time, the grinding wheel 17 grinds the quartz stones falling at the position of the material feeding pipe 23 to form quartz sand;

[0053] Step 2: After the grinding wheel 17 grinds the quartz stones, at this time, the first partition plate 7 drives the second cylinder 29 to rotate. The second cylinder 29 drives the scraper 16 and the fixed frame 8 to rotate. The scraper 16 scrapes up the quartz stones ground by the grinding wheel 17 and makes them enter the screen 24 in the fixed frame 8. At this time, the screen 24 and the first partition plate 7 drive the third round rod 15 to rotate. The third round rod 15 drives the limiting rod 13 to move on the convex block 14 through the support seat 12. When the limiting rod 13 is squeezed by the convex block 14, the screen 24 moves upward in the fixed frame 8. When the convex block 14 does not squeeze the limiting rod 13, the screen 24 will drop due to its own gravity and the gravity of the quartz sand. The screen 24 completes vibration. The qualified quartz sand falls below the screen 24, and then passes through the inclined plane, the first opening 27, the second opening 28 and the first cylinder 10 and falls into the housing 1, and is discharged from the discharge port 2. At this time, since the fan blade 25 rotates in the first cylinder 10, a negative pressure is generated in the first cylinder 10. Since there are gaps between the quartz stones, the air flow enters the first cylinder 10 from above the housing 1, which will accelerate the discharge of the qualified quartz sand below the screen 24. The unqualified quartz sand will overflow from the notch 26 and be ground by the grinding wheel 17 again until it is qualified and then all discharged.

[0054] In this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding device for producing high-strength quartz sand, comprising a housing (1), a drive assembly (101) located below the housing (1), and a discharge port (2) located on the outer wall of the housing (1), characterized in that, Further comprising: A grinding mechanism, including a screening component, a blanking component, and a first partition plate (7). The first partition plate (7) is rotatably installed on the inner wall of the housing (1). Symmetrically installed on the lower end face of the first partition plate (7) are fourth round rods (18). Rotatably installed on the lower end face of the fourth round rods (18) are grinding wheels (17). The lower end face of the grinding wheels (17) abuts against a second partition plate (9). The outer wall of the second partition plate (9) is fixedly installed on the housing (1). When the blanking component performs blanking, the driving component (101) drives the grinding wheels (17) to rotate through the first partition plate (7) to perform grinding work. At the same time, the screening component separates and discharges qualified quartz sand, and the unqualified quartz sand continues to be ground; The screening component, including a vibration component and a second cylinder (29). Two fixing frames (8) are evenly installed on the outer wall of the second cylinder (29). A screen mesh (24) is slidably installed on the inner wall of the fixing frame (8). A scraper (16) is installed on the outer wall of the fixing frame (8). A first opening (27) is provided on the outer wall of the fixing frame (8) facing the second cylinder (29). A second opening (28) is provided on the second cylinder (29) corresponding to the first opening (27); A notch (26) is provided on the outer wall of the fixing frame (8), and the notch (26) is lower than the circumferential outer wall; The vibration component includes a ring (6). The outer wall of the ring (6) is installed on the inner wall of the housing (1). A number of bumps (14) are evenly spaced and installed on the upper end face of the ring (6); The upper end face of the screen mesh (24) is fixedly installed with a third round rod (15). The upper end face of the third round rod (15) penetrates through the first partition plate (7) and is fixedly installed with a support seat (12). A limiting rod (13) is rotatably installed on the side of the support seat (12) facing the housing (1). The lower end face of the limiting rod (13) abuts against the bumps (14); The blanking component, including a shaking component and two blanking pipes (23). The two blanking pipes (23) are symmetrically installed on the lower end face of the first partition plate (7). A blanking port (22) is provided on the outer wall of the first partition plate (7) corresponding to the blanking pipe (23).

2. The grinding device for producing high-strength quartz sand according to claim 1, wherein: The shaking component includes a second ratchet wheel (21). The lower end face of the second ratchet wheel (21) is fixedly installed on the first partition plate (7). The upper end face of the second ratchet wheel (21) abuts against a first ratchet wheel (20). The upper end face of the first ratchet wheel (20) is fixedly installed with a first baffle (5). The first baffle (5) is slidably installed inside the housing (1).

3. A grinding device for producing high-strength quartz sand according to claim 2, characterized in that: Symmetrically installed on the upper end face of the first baffle (5) are first round rods (3). A support block (4) is slidably installed on the outer wall of the first round rods (3). The support block (4) is fixedly installed on the inner wall of the housing (1).

4. The grinding device for producing high-strength quartz sand according to claim 2, wherein: The lower end face of the first baffle (5) is respectively installed with a fourth baffle (19) and a fifth baffle (1901), where the fourth baffle (19) and the fifth baffle (1901) are respectively located on both sides of the first ratchet wheel (20).

5. A grinding device for producing high-strength quartz sand according to claim 1, characterized in that: The lower end face of the second partition plate (9) is fixedly installed with a first cylinder (10).

6. The grinding device for producing high-strength quartz sand according to claim 1, characterized in that: The upper end face of the second cylinder (29) is fixedly connected to the first partition plate (7), and the lower end face of the second cylinder (29) abuts against the second partition plate (9).

7. The grinding device for producing high-strength quartz sand according to claim 6, wherein: A second round bar (11) is fixedly installed on the lower end surface of the first partition plate (7). A fan blade (25) is installed on the outer wall of the second round bar (11), and the fan blade (25) is located inside the first cylinder (10).

8. A grinding process for producing high-strength quartz sand, using a grinding device for producing high-strength quartz sand as described in claim 1, characterized in that: It includes the following steps: Step 1: Pour the quartz stone into the interior of the housing (1). At this time, the drive assembly (101) operates to drive the shaking assembly to shake. The quartz stone enters the grinding wheel (17) through the feeding port (22) and the feeding pipe (23) for grinding. Step 2: The ground quartz stone is shoveled up by the scraper (16) and enters the screen (24) inside the fixed frame (8). At this time, the vibration assembly drives the screen (24) to rotate up and down. The qualified quartz sand passes through the screen (24), the first opening (27) and the second opening (28) and enters below the housing (1), and then is discharged from the discharge port (2). Step 3: When the screen (24) vibrates, the unqualified quartz sand will reach the grinding wheel (17) again through the screen (24) and be ground again until it is qualified.

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