Multistage gradient screening equipment for silica sand particles

Abstract

The utility model discloses silica sand particle multistage gradient screening equipment which comprises a machine body and a feeding port formed in the left side of the upper end of the machine body, a plurality of stock bins are arranged in the machine body in a stepped mode, and screening mechanisms are arranged at the upper ends of the stock bins respectively. The screening mechanism comprises a set of L-shaped mounting bases, a fixed round rod, a plurality of sliding bases, an adjusting motor, a rotating lead screw, a driving motor, a driving shaft, a plurality of rotating shaft sleeves and a plurality of roller screens. The silica sand screening machine has the advantages that silica sand particles are evenly fed into the machine body through an external vibrating feeder, the screening mechanism adopts multi-stage gradient screening, silica sand particle size distribution is accurately controlled, the use requirement is met, the distance between the roller screens can be adjusted at equal intervals, and the silica sand particle size can be conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of artificial silica sand technology, specifically a multi-stage gradient screening device for silica sand particles. Background Technology

[0002] Artificial silica sand is made from carefully selected high-purity quartzite ore, processed through multiple steps including impurity removal, multiple crushing, washing, drying, shaping, iron removal, grading, dust control, and mud control. The resulting particles are rounded, with adjustable angularity, precise gradation, and controllable dust and mud content. Currently, traditional screening processes use ordinary vibrating screens for simple sieving of silica sand. However, due to the low screening efficiency and poor grading ability of ordinary vibrating screens, precise gradation adjustment cannot be achieved. Utility Model Content

[0003] To address the above deficiencies, this utility model provides a multi-stage gradient screening device for silica sand particles, thereby solving the problem of multi-stage gradient screening of silica sand particles.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A multi-stage gradient screening device for silica sand particles includes a machine body and a feed inlet located on the upper left side of the machine body. The machine body is provided with a number of hoppers arranged in a stepped manner, and each of the hoppers is equipped with a screening mechanism at its upper end.

[0006] The screening mechanism includes a set of L-shaped mounting seats, a fixed round rod, several sliding seats, an adjusting motor, a rotating screw, a drive motor, a drive shaft, several rotating bushings, and several roller screens. The set of L-shaped mounting seats is installed at the rear end of the hopper. The fixed round rod is installed at the rear end of the set of L-shaped mounting seats. The rear ends of several sliding seats are movably fitted onto the fixed round rod. The adjusting motor is installed on the left L-shaped mounting seat. The rotating screw is movably installed between the set of L-shaped mounting seats, with its left end connected to the rotating end of the adjusting motor. The drive motor is installed on the right L-shaped mounting seat. The drive shaft is movably installed at the front end of the set of L-shaped mounting seats, with its right end connected to the rotating end of the drive motor. Several rotating bushings are movably fitted onto the drive shaft, with their ends respectively movably inserted into corresponding sliding seats. The rear ends of several roller screens are movably inserted into corresponding sliding seats.

[0007] Furthermore, the right-end sliding seat is threaded onto the rotating screw via a sliding nut, and the remaining sliding seats each have a circular hole corresponding to the rotating screw. Adjusting the motor to rotate forward drives the sliding nut through the rotating screw, which in turn drives the right-end sliding seat and the remaining sliding seats to adjust at equal intervals, facilitating the adjustment of the silica sand particle size.

[0008] Furthermore, several screen plates are installed alternately on several roller screens.

[0009] Furthermore, each of the sliding seats has an inner cavity at its front end, each of the rotating bushings has a drive gear installed at its center, and each of the roller screens has a corresponding driven gear installed at its rear end, which facilitates the rotation of the roller screen.

[0010] Furthermore, a set of slide bars is installed on both sides of the drive shaft, and corresponding slide bars are opened on both sides of several rotating bushings. When several sliding seats are adjusted at equal intervals, it is convenient for the rotating bushings to move synchronously on the drive shaft.

[0011] Furthermore, several sets of guide holes are opened at both ends of several hoppers, and several roller screens are slidably installed in the corresponding guide holes at both ends by sliders, so as to facilitate the equidistant adjustment of several roller screens.

[0012] Furthermore, an inclined guide plate 1 is installed at the feed inlet, and an inclined guide plate 2 is installed on the upper end of several hoppers respectively, with the guide plate 2 located at the bottom of the corresponding roller screen for easy material guiding.

[0013] Furthermore, the bottoms of several sliding seats are hinged by a diamond-shaped telescopic frame, and the left end of the diamond-shaped telescopic frame is fixed to the bottom of the left-side L-shaped mounting base, which facilitates the equidistant adjustment of several sliding seats.

[0014] This utility model provides a multi-stage gradient screening device for silica sand particles, which has the following advantages: the silica sand particles are uniformly fed into the machine body by an external vibrating feeder, the screening mechanism adopts multi-stage gradient screening, accurately controls the particle size distribution of silica sand, meets the usage requirements, and the spacing between several roller screens can be adjusted at equal intervals, which facilitates the adjustment of the silica sand particle size. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a multi-stage gradient screening device for silica sand particles according to the present invention.

[0016] Figure 2 This is a schematic diagram of the screening mechanism of this utility model.

[0017] Figure 3 This is a rear view of a set of L-shaped mounting bases according to this utility model.

[0018] Figure 4 This is a cross-sectional view of the sliding seat of this utility model.

[0019] Figure 5 This is a view of the exterior of the machine body described in this utility model.

[0020] In the diagram: 1. Machine body; 2. Feed inlet; 3. Hopper; 4. L-shaped mounting base; 5. Fixed round rod; 6. Sliding seat; 7. Adjusting motor; 8. Rotating lead screw; 9. Drive motor; 10. Drive shaft; 11. Rotating bushing; 12. Roller screen; 13. Sliding lead screw nut; 14. Inner cavity; 15. Drive gear; 16. Driven gear; 17. Guide hole; 18. Slider; 19. Guide plate one; 20. Guide plate two; 21. Diamond telescopic frame. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figures 1 to 5 As shown in the figure, this application provides a multi-stage gradient screening device for silica sand particles, including a machine body 1 and a feed inlet 2 opened on the upper left side of the machine body 1. The machine body 1 has a plurality of hoppers 3 arranged in a stepped manner, and a screening mechanism is provided at the upper end of each of the hoppers 3. The screening mechanism includes a set of L-shaped mounting seats 4, a fixed round rod 5, a plurality of sliding seats 6, an adjusting motor 7, a rotating screw 8, a drive motor 9, a drive shaft 10, a plurality of rotating bushings 11, and a plurality of roller screens 12. The set of L-shaped mounting seats 4 is installed at the rear end of the hoppers 3, the fixed round rod 5 is installed at the rear end between the set of L-shaped mounting seats 4, and the rear ends of the plurality of sliding seats 6 are movably fitted. On the fixed round rod 5, the adjusting motor 7 is installed on the left L-shaped mounting base 4. The rotating screw 8 is movably installed between a set of L-shaped mounting bases 4 through the fastening bearing, and its left end is connected to the rotating end of the adjusting motor 7. The drive motor 9 is installed on the right L-shaped mounting base 4. The drive shaft 10 is movably installed at the front end between a set of L-shaped mounting bases 4 through the fastening bearing, and its right end is connected to the rotating end of the drive motor 9. Several rotating bushings 11 are movably fitted on the drive shaft 10, and their two ends are movably inserted into the corresponding sliding seats 6 through the fastening bearings. The rear ends of several roller screens 12 are movably inserted into the corresponding sliding seats 6 through the fastening bearings.

[0023] In this embodiment, a vibrating feeder is installed at the feed inlet 2. Silica sand particles are evenly fed into the machine body 1 through the external vibrating feeder. The drive motor 9 drives several rotating bushings 11 to rotate through the drive shaft 10, and causes several roller screens 12 to rotate synchronously to screen the silica sand particles. The screening mechanism adopts multi-stage gradient screening to accurately control the silica sand particle size distribution and meet the usage requirements. The silica sand particles that pass the screening fall into the corresponding hopper 3, while the remaining silica sand particles fall into the rightmost hopper 3.

[0024] In some embodiments, the right-end sliding seat 6 is threaded onto the rotating lead screw 8 via a sliding nut 13, and the remaining sliding seats 6 each have a circular hole corresponding to the rotating lead screw 8, such as... Figure 3 As shown, when the motor 7 rotates forward, the screw 8 drives the sliding screw nut 13, which in turn drives the right sliding seat 6 and several other sliding seats 6 to adjust at equal intervals, making it easier to adjust the particle size of the sieved silica sand.

[0025] In some embodiments, a plurality of screen plates are staggered on a plurality of roller screens 12, such as Figure 2 As shown, this facilitates the sieving of silica sand particles.

[0026] In some embodiments, the front ends of several sliding seats 6 are respectively provided with inner cavities 14, several rotating bushings 11 are respectively equipped with drive gears 15 at their centers, and several roller screens 12 are respectively equipped with corresponding driven gears 16 at their rear ends. Figure 4 As shown, when the rotating bushing 11 rotates, it can drive the roller screen 12 to rotate through the drive gear 15 and the driven gear 16.

[0027] In some embodiments, a set of slide bars are installed on both sides of the drive shaft 10, and corresponding slide bars are respectively opened on both sides of several rotating bushings 11, such as... Figure 3 and Figure 4 As shown, when several sliding seats 6 are adjusted at equal intervals, it is convenient for the rotating bushing 11 to move synchronously on the drive shaft 10.

[0028] In some embodiments, several sets of guide holes 17 are respectively opened at both ends of several hoppers 3, and several roller screens 12 are slidably installed in the corresponding guide holes 17 at both ends via sliders 18, such as Figure 5 As shown, the roller screen 12 is movably inserted into the slider 18 via a fastening bearing, which facilitates the equal-distance adjustment of several roller screens 12.

[0029] In some embodiments, an inclined guide plate 19 is installed at the feed inlet 2, and an inclined guide plate 20 is installed at the top of each of the several hoppers 3, with the guide plate 20 located at the bottom of the corresponding roller screen 12 for easy material guiding.

[0030] In some embodiments, the bottoms of several sliding seats 6 are hinged together by a rhomboid telescopic frame 21, and the left end of the rhomboid telescopic frame 21 is fixed to the bottom of the left-side L-shaped mounting base 4, such as... Figure 3 As shown, this facilitates the equidistant adjustment of several sliding seats 6.

[0031] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A multi-stage gradient screening device for silica sand particles, comprising a machine body (1) and a feed inlet (2) located on the upper left side of the machine body (1), characterized in that, The machine body (1) has several hoppers (3) arranged in a stepped manner, and each of the hoppers (3) has a screening mechanism at its upper end; The screening mechanism includes a set of L-shaped mounting seats (4), a fixed round rod (5), several sliding seats (6), an adjusting motor (7), a rotating screw (8), a drive motor (9), a drive shaft (10), several rotating bushings (11), and several roller screens (12). The set of L-shaped mounting seats (4) is installed at the rear end of the hopper (3). The fixed round rod (5) is installed at the rear end between the set of L-shaped mounting seats (4). The rear ends of the several sliding seats (6) are movably fitted onto the fixed round rod (5). The adjusting motor (7) is installed on the left side of the L-shaped mounting seat (4). The rotating screw (8) is movably installed between a set of L-shaped mounting seats (4), and its left end is connected to the rotating end of the adjusting motor (7). The drive motor (9) is installed on the right L-shaped mounting seat (4). The drive shaft (10) is movably installed at the front end between a set of L-shaped mounting seats (4), and its right end is connected to the rotating end of the drive motor (9). Several rotating bushings (11) are movably fitted on the drive shaft (10), and their two ends are movably inserted into the corresponding sliding seats (6). Several roller screens (12) are movably inserted into the corresponding sliding seats (6) at their rear ends.

2. The multi-stage gradient screening equipment for silica sand particles according to claim 1, characterized in that, The right-end sliding seat (6) is threaded onto the rotating screw (8) through the sliding nut (13), and the remaining sliding seats (6) have circular holes corresponding to the rotating screw (8).

3. The multi-stage gradient screening device for silica sand particles according to claim 1, characterized in that, Several roller screens (12) are staggered with several screen plates.

4. The multi-stage gradient screening device for silica sand particles according to claim 1, characterized in that, Several sliding seats (6) have an inner cavity (14) at their front end, several rotating bushings (11) have a drive gear (15) installed at their center, and several roller screens (12) have a corresponding driven gear (16) installed at their rear end.

5. The multi-stage gradient screening device for silica sand particles according to claim 1, characterized in that, A set of slide bars is installed on both sides of the drive shaft (10), and corresponding slide bars are opened on both sides of several rotating bushings (11).

6. The multi-stage gradient screening device for silica sand particles according to claim 1, characterized in that, Several hoppers (3) have several sets of guide holes (17) at both ends, and several roller screens (12) are slidably installed in the corresponding guide holes (17) at both ends by sliders (18).

7. The multi-stage gradient screening device for silica sand particles according to claim 1, characterized in that, An inclined guide plate (19) is installed at the feed inlet (2), and an inclined guide plate (20) is installed at the top of several hoppers (3), with the guide plate (20) located at the bottom of the corresponding roller screen (12).

8. The multi-stage gradient screening device for silica sand particles according to claim 1, characterized in that, Several sliding seats (6) are hinged at the bottom by a diamond telescopic frame (21), and the left end of the diamond telescopic frame (21) is fixed to the bottom of the left L-shaped mounting seat (4).

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