A device for the sizing and sampling of silica particles

Abstract

The utility model relates to the technical field of industrial silicon raw material processing, specifically is a kind of silica sand particle size screening and sampling device, including frame and screening mechanism, the frame is hung by spring and is connected between screening mechanism, the screening mechanism includes the first screen cloth in upper layer, the second screen cloth in middle layer and the aggregate plate in lower layer.The sampling device effectively shortens time, and different kinds of sand and gravel can be better sampled.And the screening device reduces the risk of weld cracking through spring hanging system.Through adjustable suspension system, the pre-tightening force of spring can be changed, so that it is more conducive to changing the drying wind state of screening device.

Description

Technical Field

[0001] This utility model relates to the field of industrial silicon raw material processing technology, specifically a silica particle size screening and sampling device. Background Technology

[0002] Silica is a crucial raw material for industrial silicon smelting, and its particle size directly affects smelting efficiency. Currently, silica acceptance relies heavily on manual sampling and sieving, which presents the following problems:

[0003] 1. Low efficiency: Manual sampling is time-consuming (about 60 minutes per batch) and cannot meet the needs of large-scale raw material acceptance.

[0004] 2. Large error: Manual screening is highly subjective and the data lacks objectivity (e.g., the error in the 0-50mm range can reach 6.6kg).

[0005] 3. Short equipment lifespan: Traditional vibrating screens are easily damaged by silica impact due to their rigid structure, and the welds are prone to cracking. Utility Model Content

[0006] The purpose of this invention is to provide a silica particle size screening and sampling device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A silica particle size screening device includes a frame and a screening mechanism, which are connected by a spring suspension. The screening mechanism includes a first screen in the upper layer, a second screen in the middle layer, and a collection plate in the lower layer.

[0009] As a further embodiment of this utility model: the first screen and the second screen are welded to the frame at a 30° angle, and the tail end of the first screen is connected to the head end of the second screen to form a sideways V-shape.

[0010] As a further embodiment of this utility model: the spring hanger includes a base, the upper part of which is fixedly connected to an end seat via a connecting spring, the two ends of which extend upward via connecting rods and connect to a first connecting end, which can be suspended on the frame, and the end seat extends downward via a guide rod and passes through the base to connect to a second connecting end, which can be connected to a screening mechanism.

[0011] As a further improvement of this utility model, the number of spring hangers is four, which are evenly distributed at the four corners of the screening mechanism.

[0012] As a further embodiment of this utility model: the end seat is provided with a connecting bolt, the bottom of the connecting bolt is fixedly connected to the guide rod, the end seat can slide on the connecting bolt, and the compression degree of the connecting spring by the end seat is controlled by twisting the bolt on the connecting bolt.

[0013] A silica sampling device includes a wide-mouth shovel and a sampling arm, the sampling arm including a fixed arm welded to the wide-mouth shovel and a connecting arm hinged to the fixed arm.

[0014] As a further embodiment of this utility model: the fixed arm is provided with a movable groove, the interior of the movable groove is connected to the connecting arm through a connecting shaft, a reset disc spring is sleeved on the connecting shaft, and one end of the reset disc spring is fixedly connected to the connecting arm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention can effectively shorten the screening time and better sample different types of sand and gravel. At the same time, the spring suspension system can reduce the risk of weld cracking. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the silica particle size screening device of this utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the silica sampling device of this utility model;

[0019] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] 10. Frame; 20. Screening mechanism; 21. First screen; 22. Second screen; 30. Spring hanger; 31. Base; 32. Connecting spring; 33. End seat; 34. Connecting rod; 35. Guide rod; 40. Wide-mouth shovel; 50. Sampling arm; 51. Fixed arm; 52. Connecting arm; 53. Movable groove; 54. Connecting shaft. Detailed Implementation

[0022] Please see Figure 1 and 3 It is a silica particle size screening device, which includes a frame 10 and a screening mechanism 20. The frame 10 and the screening mechanism 20 are connected by a spring suspension 30. The screening mechanism 20 includes a first screen 21 located in the upper layer, a second screen 22 located in the middle layer, and a collection plate (not shown in the figure) at the bottom layer.

[0023] The first screen 21 is a 170mm*170mm screen, and the second screen 22 is a 50mm*50mm screen. The first screen 21 and the second screen 22 are welded to the frame 10 at a 30° angle. The tail end of the first screen 21 and the head end of the second screen 22 are connected to form a sideways V-shape. In addition, a vibrating motor (not shown in the figure) is also installed on the screening mechanism 20. The motor shaft is perpendicular to the screen plane to ensure that it can generate a vibration impact force on the screening mechanism 20.

[0024] The spring hanger 30 includes a base 31. The upper part of the base 31 is fixedly connected to the end seat 33 via a connecting spring 32. Both ends of the base 31 extend upward through connecting rods 34 and connect to the first connection end. The first connection end can be suspended on the frame 10. The end seat 33 extends downward through a guide rod 35 and passes through the base 31 to connect to the second connection end. The second connection end can be connected to the screening mechanism 20.

[0025] Four spring hangers 30 are evenly distributed at the four corners of the screening mechanism 20, and the pre-load is adjusted by balancing the raw materials with torque. Based on this, the end seat 33 is equipped with connecting bolts, the bottom of which is fixedly connected to the guide rod 35. The end seat 33 can slide on the connecting bolts, and the compression degree of the end seat 33 on the connecting spring 32 is controlled by twisting the bolts. It is worth noting that the spring hanger 30 can adjust the spring preload according to the load weight (≤500kg) to ensure that the screen displacement margin during vibration is ≤3mm.

[0026] like Figure 2 As shown, this utility model also proposes a sand and gravel sampling device, which includes a wide-mouth shovel 40 and a sampling arm 50. The sampling arm 50 includes a fixed arm 51 welded to the wide-mouth shovel 40 and a connecting arm 52 hinged to the fixed arm 51. The fixed arm 51 has a movable groove 53, and the interior of the movable groove 53 is connected to the connecting arm 52 through a connecting shaft 54. A return disc spring is sleeved on the connecting shaft 54, and one end of the return disc spring is fixedly connected to the connecting arm 52. In this embodiment, by mounting the connecting arm 52 on a power device, the power device drives the entire sampling device to move to achieve the purpose of sand and gravel sampling. When the wide-mouth shovel 40 is in contact with the ground, even if the power device is not parallel to the ground, a better sampling effect can still be achieved through the connection between the connecting arm 52 and the fixed arm 51.

Claims

1. A silica particle size screening apparatus comprising a frame (10) and a screening mechanism (20), characterised in that, The frame (10) is connected to the screening mechanism (20) by a spring suspension (30). The screening mechanism (20) includes a first screen (21) in the upper layer, a second screen (22) in the middle layer, and a collection plate in the lower layer. The spring hanger (30) includes a base (31), the upper part of which is fixedly connected to the end seat (33) via a connecting spring (32). The two ends of the base (31) extend upward through connecting rods (34) and are connected to the first connection end. The first connection end can be suspended on the frame (10). The end seat (33) extends downward through a guide rod (35) and passes through the base (31) to connect to the second connection end. The second connection end can be connected to the screening mechanism (20).

2. The silica particle size screening device according to claim 1, characterized in that, The first screen (21) and the second screen (22) are welded to the frame (10) at a 30° angle. The tail end of the first screen (21) is connected to the head end of the second screen (22) to form a sideways V-shape.

3. The silica particle size screening device according to claim 1, characterized in that, The number of spring hangers (30) is four, which are evenly distributed at the four corners of the screening mechanism (20).

4. The silica particle size screening device according to claim 1, characterized in that, The end seat (33) is provided with a connecting bolt. The bottom of the connecting bolt is fixedly connected to the guide rod (35). The end seat (33) can slide on the connecting bolt. By twisting the bolt on the connecting bolt, the compression degree of the end seat (33) on the connecting spring (32) can be controlled.

5. A silica sampling device, applied to the screening device as described in any one of claims 1-4, characterized in that, It includes a wide-mouth shovel (40) and a sampling arm (50), the sampling arm (50) including a fixed arm (51) welded to the wide-mouth shovel (40) and a connecting arm (52) hinged to the fixed arm (51).

6. A silica sampling device according to claim 5, characterized in that, The fixed arm (51) is provided with a movable groove (53). The interior of the movable groove (53) is connected to the connecting arm (52) through a connecting shaft (54). A reset disc spring is sleeved on the connecting shaft (54), and one end of the reset disc spring is fixedly connected to the connecting arm (52).

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