Sand screening equipment
By designing a sand screening equipment with dual screening function, using the motor-driven rotating shaft and spiral blades for preliminary screening, and then performing secondary screening through the motor-driven rotating disc and screen mesh, the problem that existing equipment can only screen at one time has been solved, and a more efficient and even sand screening effect is achieved.
Patent Information
- Application Number
- CN202421389242.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-18
AI Technical Summary
Existing sand screening equipment can only perform one screening, and it is impossible to fully realize the precise separation of sand with different particle sizes, resulting in poor quality of sand after screening.
A sand screening device is designed to realize double screening of sand through the driving of the first motor and the second motor. First, the second motor drives the rotation shaft and the spiral blades to rotate to initially screen the sand; then, the first motor drives the rotation plate and the screen to vibrate and performs secondary screening.
The screening efficiency is significantly improved through double screening, making the final sand product more uniform in particle size and higher quality.
Smart Images
Figure CN223010781U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand screening equipment, in particular to a sand screening equipment. Background Technique
[0002] In many construction projects, sand yard operations and related industries, there are specific requirements for the particle size of sand. The originally obtained sand is often mixed with various particles of different sizes, impurities and other substances. The sand screening equipment is a mechanical equipment used for screening sand, usually used in construction sites, sand yards, cement plants and other places. It can screen out impurities and particles that are too large or too small in the sand, and obtain sand with uniform particle size that meets the requirements.
[0003] The existing sand screening equipment generally can only perform one screening operation on the sand. However, in many actual application processes, due to the complex and diverse initial states of the sand and the wide range of particle size distributions, one screening often cannot fully achieve the precise separation of sand with different particle sizes, resulting in poor quality of the finally screened sand. Content of the Utility Model
[0004] The purpose of the utility model is to solve the problem that when the above equipment is used, since the sand screening equipment can only perform one screening on the sand during the use process, resulting in poor quality of the screened sand, and thus a sand screening equipment is proposed.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A sand screening equipment, including a screening box, a feeding hopper is fixedly communicated with the top of the screening box, two positioning rods are fixedly installed on the inner surface wall of the screening box, moving blocks are movably sleeved on the outer surfaces of the two positioning rods, a group of springs are movably sleeved on the outer surfaces of the two positioning rods, a screen is fixedly connected between one sides of the outer walls of the two moving blocks, a connecting plate is fixedly connected to one side of the outer wall of the screen, a fixing block is fixedly installed on one side of the outer wall of the connecting plate, a first fixing rod is fixedly connected to one side of the outer wall of the fixing block, a connecting rod is movably sleeved on the outer surface of the first fixing rod, a second fixing rod is movably inserted into the inner surface of the connecting rod, a rotating disc is fixedly connected to one side of the outer wall of the second fixing rod, a first motor is fixedly connected to one side of the outer wall of the rotating disc, a screening pipe is fixedly installed on the inner surface wall of the screening box, two first bearings are fixedly inserted into the inner surface wall of the screening box, a rotating shaft is fixedly inserted between the inner surfaces of the two first bearings, and a spiral blade is fixedly sleeved on the outer surface of the rotating shaft.
[0006] Preferably, a second motor is fixedly connected to one side of the outer wall of the rotating shaft, a first pulley is fixedly sleeved on the outer surface of the rotating shaft, a belt body is movably sleeved on the outer surface of the first pulley, and a second pulley is movably contacted with the inner surface of the belt body.
[0007] Preferably, a movable roller is fixedly inserted into the inner surface wall of the second pulley. A conveyor belt is movably sleeved on the outer surface wall of the movable roller. A strong magnetic roller is in movable contact with the inner surface wall of the conveyor belt.
[0008] Preferably, two second bearings are fixedly sleeved on the outer surface walls of the movable roller and the strong magnetic roller. A first baffle is fixedly connected to the inner surface wall of the screening box. A second baffle is fixedly installed on the inner surface wall of the screening box.
[0009] Preferably, a guide plate is fixedly installed on the inner surface wall of the screening box. A guide block is fixedly installed on the top of the guide plate.
[0010] Preferably, a first material guide plate is fixedly communicated with the outer surface wall of the screening box. A second material guide plate is fixedly communicated with the outer surface wall of the screening box.
[0011] Preferably, a third material guide plate is fixedly communicated with the outer surface wall of the screening box. A sand discharge port is formed in the bottom of the screening box.
[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.
[0013] 1. In the present utility model, through the interaction of the components of the equipment and by using the driving of the first motor and the second motor, the sand can be double-screened, thereby significantly improving the screening efficiency and making the particle size of the finally obtained sand product more uniform and the quality higher.
[0014] 2. In the present utility model, through the interaction of the components of the equipment and by using the adsorption effect of the strong magnetic roller, the magnetic impurities in the sand can be effectively removed, thereby significantly improving the purity of the sand and making the treated sand more in line with the standards of industrial or construction sand. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is the front view structural three-dimensional view of a sand screening device proposed by the present utility model;
[0016] Figure 2 is the front view structural sectional three-dimensional view of a sand screening device proposed by the present utility model;
[0017] Figure 3 is the partial structural three-dimensional split view of a sand screening device proposed by the present utility model;
[0018] Figure 4 is the partial structural side view three-dimensional split view of a sand screening device proposed by the present utility model;
[0019] Figure 5 is the internal structure three-dimensional view of a sand screening device proposed by the present utility model.
[0020] Legend:
[0021] 1. Screening box; 2. Feeding hopper; 3. Positioning rod; 4. Moving block; 5. Spring; 6. Sieve mesh; 7. Connecting plate; 8. Fixed block; 9. First fixing rod; 10. Connecting rod; 11. Second fixing rod; 12. Rotating disc; 13. First motor; 14. Screening pipe; 15. First bearing; 16. Rotating shaft; 17. Spiral blade; 18. Second motor; 19. First pulley; 20. Belt body; 21. Second pulley; 22. Movable roller; 23. Conveyor belt; 24. Strong magnetic roller; 25. Second bearing; 26. First baffle; 27. Second baffle; 28. Deflector; 29. Deflecting block; 30. First guide plate; 31. Second guide plate; 32. Third guide plate; 33. Sand discharge port. Detailed implementation manners
[0022] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0023] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.
[0024] Embodiment 1, as Figures 1-5As shown in the figure, the utility model provides a sand screening device, which includes a screening box 1. A feed hopper 2 is fixedly communicated with the top of the screening box 1. Two positioning rods 3 are fixedly installed on the inner wall of the screening box 1. Moving blocks 4 are movably sleeved on the outer walls of the two positioning rods 3. A group of springs 5 are movably sleeved on the outer walls of the two positioning rods 3. A screen 6 is fixedly connected between one sides of the outer walls of the two moving blocks 4. A connecting plate 7 is fixedly connected to one side of the outer wall of the screen 6. A fixing block 8 is fixedly installed on one side of the outer wall of the connecting plate 7. A first fixing rod 9 is fixedly connected to one side of the outer wall of the fixing block 8. A connecting rod 10 is movably sleeved on the outer wall of the first fixing rod 9. A second fixing rod 11 is movably inserted into the inner wall of the connecting rod 10. A rotating disk 12 is fixedly connected to one side of the outer wall of the second fixing rod 11. A first motor 13 is fixedly connected to one side of the outer wall of the rotating disk 12. A screening pipe 14 is fixedly installed on the inner wall of the screening box 1. Two first bearings 15 are fixedly inserted into the inner wall of the screening box 1. A rotating shaft 16 is fixedly inserted between the inner walls of the two first bearings 15. A spiral blade 17 is fixedly sleeved on the outer wall of the rotating shaft 16. A second motor 18 is fixedly connected to one side of the outer wall of the rotating shaft 16. A first pulley 19 is fixedly sleeved on the outer wall of the rotating shaft 16. A belt body 20 is movably sleeved on the outer wall of the first pulley 19. The inner wall of the belt body 20 is in movable contact with a second pulley 21.
[0025] The effect achieved by the entire Example 1 is that after the sand falls into the screening pipe 14 through the feed hopper 2, first start the second motor 18. The output end of the second motor 18 drives the rotating shaft 16 to rotate. Then, the rotating shaft 16 drives the spiral blade 17 to rotate. During the process of the spiral blade 17 pushing the sand, the sand that meets the sieve hole size falls through the sieve holes to the top of the conveyor belt 23. Subsequently, the preliminarily screened sand is evenly dropped onto the top of the screen 6 through the conveying action of the conveyor belt 23. Then, start the first motor 13. The output end of the first motor 13 drives the rotating disk 12 to rotate. Since the second fixing rod 11 is eccentrically installed on one side of the outer wall of the rotating disk 12, and the connecting rod 10 is movably sleeved on the outer wall of the second fixing rod 11, the rotational movement of the rotating disk 12 causes the connecting rod 10 to swing reciprocally. The connecting rod 10 then drives the screen 6 to vibrate, causing the sand on the top of the screen 6 to be secondarily screened, thereby further separating finer sand particles. In this way, the sand undergoes two screenings, thereby improving the screening efficiency and accuracy, and ensuring that the quality of the finally screened sand more meets the usage requirements.
[0026] Example 2, as Figures 2-5As shown in the figure, a movable roller 22 is fixedly inserted into the inner wall of the second pulley 21. A conveyor belt 23 is movably sleeved on the outer wall of the movable roller 22. A strong magnetic roller 24 is movably contacted with the inner wall of the conveyor belt 23. Two second bearings 25 are fixedly sleeved on the outer walls of the movable roller 22 and the strong magnetic roller 24. A first baffle 26 is fixedly connected to the inner wall of the screening box 1. A second baffle 27 is fixedly installed on the inner wall of the screening box 1. A guide plate 28 is fixedly installed on the inner wall of the screening box 1. A guide block 29 is fixedly installed on the top of the guide plate 28. A first guide plate 30 is fixedly communicated with the outer wall of the screening box 1. A second guide plate 31 is fixedly communicated with the outer wall of the screening box 1. A third guide plate 32 is fixedly communicated with the outer wall of the screening box 1. A sand discharge port 33 is opened at the bottom of the screening box 1.
[0027] The effect achieved by the entire Embodiment 2 is that when the second motor 18 is started, the rotating shaft 16 will drive the first pulley 19 to rotate synchronously. Through the transmission of the belt body 20, the second pulley 21 will also rotate synchronously. And the rotation of the second pulley 21 further drives the movable roller 22 to rotate. Then, through the transmission of the conveyor belt 23, the strong magnetic roller 24 also starts to rotate. After the preliminarily screened sand falls onto the top of the conveyor belt 23, as the conveyor belt 23 runs smoothly, the sand is gradually conveyed to the end of the conveyor belt 23, and then falls onto the top of the screen 6 for secondary screening. The magnetic impurities mixed in the sand will be adsorbed on the surface of the strong magnetic roller 24. As the conveyor belt 23 continues to rotate, these adsorbed magnetic impurities will gradually be brought to the bottom of the strong magnetic roller 24. When the conveyor belt 23 leaves the adsorption area of the strong magnetic roller 24, the magnetic impurities lose the adsorption force and fall off, and finally fall onto the top of the lower guide plate 28. And through the slope of the guide plate 28 and the guidance of the guide block 29, these magnetic impurities are discharged through the first guide plate 30, thereby removing the magnetic impurities in the sand.
[0028] Working principle: After the device is powered on, sand enters the interior of the sieve pipe 14 through the feed hopper 2. Subsequently, the operator starts the second motor 18 through the control system. The output end of the second motor 18 drives the rotating shaft 16 to rotate, thereby driving the spiral blade 17 to rotate. During the rotation of the spiral blade 17, the sand is pushed towards the third guide plate 32 through its spiral structure. During this process, the fine sand that meets the sieve hole size falls onto the top of the conveyor belt 23 below through multiple groups of sieve holes, while the sand with larger particle sizes is discharged from the third guide plate 32 out of the screening box 1 under the continuous pushing action of the spiral blade 17. At the same time, the rotation of the rotating shaft 16 also drives the movable roller 22 and the conveyor belt 23 to rotate together through the transmission system of the first pulley 19, the belt body 20, and the second pulley 21. During this process, the strong magnetic roller 24 also rotates with the rotation of the conveyor belt 23. The sand will fall onto the top of the sieve mesh 6 at the end of the conveyor belt 23, and the magnetic impurities in the sand are adsorbed by the strong magnetic roller 24 and enter the bottom of the strong magnetic roller 24 along with the conveyor belt 23. When the conveyor belt 23 passes through the non-adsorbing area of the strong magnetic roller 24, the magnetic impurities lose the adsorption force and fall off, and finally fall onto the top of the guide plate 28 below. Guided by the inclined surface of the guide plate 28 and the guide block 29, these magnetic impurities are discharged through the first guide plate 30. When the preliminarily screened sand falls onto the top of the sieve mesh 6, the first motor 13 is started. The output end of the first motor 13 drives the rotating disk 12 to rotate. Since the second fixed rod 11 is eccentrically installed on one side of the outer wall of the rotating disk 12, and the connecting rod 10 is movably sleeved on the outer surface wall of the second fixed rod 11, the rotational movement of the rotating disk 12 causes the connecting rod 10 to generate a reciprocating swing. This reciprocating swing is transmitted to the sieve mesh 6 through the connecting rod 10, and the sieve mesh 6 generates high-frequency vibration under the elastic action of the two groups of springs 5. The vibration of the sieve mesh 6 further promotes the screening of the sand, enabling finer sand particles to pass through the mesh holes of the sieve mesh 6, thereby realizing the secondary screening of the sand and more precise particle size classification.
[0029] The above is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. A sand screening device, comprising a screening box (1), characterized in that: The top of the screening box (1) is fixedly connected to a feed hopper (2); two positioning rods (3) are fixedly installed on the inner surface wall of the screening box (1); the outer surfaces of the two positioning rods (3) are movably sleeved with moving blocks (4); the outer surfaces of the two positioning rods (3) are movably sleeved with a group of springs (5); a screen (6) is fixedly connected between one side of the outer walls of the two moving blocks (4); a connecting plate (7) is fixedly connected to one side of the outer wall of the screen (6); a fixing block (8) is fixedly installed on one side of the outer wall of the connecting plate (7); a first fixing rod (9) is fixedly connected to one side of the outer wall of the fixing block (8); the first fixing rod The outer wall of the screening box (9) is movably sleeved with a connecting rod (10), the inner wall of the connecting rod (10) is movably inserted with a second fixed rod (11), one side of the outer wall of the second fixed rod (11) is fixedly connected with a rotating disk (12), one side of the outer wall of the rotating disk (12) is fixedly connected with a first motor (13), the inner wall of the screening box (1) is fixedly installed with a screening tube (14), the inner wall of the screening box (1) is fixedly inserted with two first bearings (15), a rotating shaft (16) is fixedly inserted between the inner walls of the two first bearings (15), and the outer wall of the rotating shaft (16) is fixedly sleeved with a spiral blade (17).
2. A sand screening device according to claim 1, characterized in that: A second motor (18) is fixedly connected to one side of the outer wall of the rotating shaft (16); a first belt pulley (19) is fixedly sleeved on the outer wall of the rotating shaft (16); a belt body (20) is movably sleeved on the outer wall of the first belt pulley (19); and a second belt pulley (21) is movably contacted on the inner wall of the belt body (20).
3. A sand screening device according to claim 2, characterized in that: A movable roller (22) is fixedly inserted into the inner surface wall of the second pulley (21), a conveyor belt (23) is movably sleeved on the outer surface wall of the movable roller (22), and a strong magnetic roller (24) is movably contacted on the inner surface wall of the conveyor belt (23).
4. A sand screening device according to claim 3, characterized in that: The outer surfaces of the movable roller (22) and the strong magnetic roller (24) are both fixedly sleeved with two second bearings (25), the inner surface wall of the screening box (1) is fixedly connected with a first baffle (26), and the inner surface wall of the screening box (1) is fixedly installed with a second baffle (27).
5. A sand screening device according to claim 4, characterized in that: A guide plate (28) is fixedly mounted on the inner surface wall of the screening box (1), and a guide block (29) is fixedly mounted on the top of the guide plate (28).
6. A sand screening device according to claim 5, characterized in that: The outer wall of the screening box (1) is fixedly connected to a first material guide plate (30), and the outer wall of the screening box (1) is fixedly connected to a second material guide plate (31).
7. A sand screening device according to claim 6, characterized in that: The outer wall of the screening box (1) is fixedly connected to a third material guide plate (32), and the bottom of the screening box (1) is provided with a sand discharge port (33).