A winnowing device for separating silica sand from waste sand

Abstract

The utility model discloses a kind of air separation devices for separating silica sand from waste sand, including airflow sorting machine and feed hopper, the feed hopper is fixed at the upper end feed inlet of airflow sorting machine;Preselection component, the preselection component includes U baffle, first electric push rod, pivot, connecting plate, movable hole, filter plate, movable plate, second fixed plate and second electric push rod, the U baffle one end is hinged on the upper end one side of feed hopper, first electric push rod is fixed in feed hopper side, pivot is rotatably connected on the upper end of first electric push rod, connecting plate is fixed at the other side lower end of U baffle away from hinged point, movable hole is set in the middle of connecting plate, and pivot is rotatably connected in movable hole. The utility model is provided with preselection component, and the grain size larger mineral sand is intercepted in feed end, avoids its into airflow sorting, and slanted filter plate is combined with electric push rod action, so that the large particles intercepted automatically slide along the slope, without manual intervention.

Description

Technical Field

[0001] This utility model relates to the field of waste sand sorting technology, specifically to an air separation device for separating silica sand from waste sand. Background Technology

[0002] After silica sand mining, the sand undergoes crushing to remove iron and roasting to remove organic matter, leaving a mixture of silica sand, zircon sand, chromite sand, etc. Due to the significant density difference between the target material (silica sand) and the impurities (zircon sand, chromite sand, etc.), an air classifier can be used for separation. The lower density silica sand will be discharged from the top of the air classifier, while the higher density zircon sand and chromite sand will be discharged from the bottom.

[0003] Traditional air classification relies on differences in particle settling velocities for separation. However, large particles in mineral sands, due to their high inertia, are prone to inelastic collisions with other particles, altering their trajectories and interfering with the classification effect. Therefore, an air classification device for separating silica sand from waste sand is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an air-separation device for separating silica sand from waste sand, thereby solving the problems mentioned in the background section. To solve these technical problems, this invention is achieved through the following technical solution:

[0005] This utility model relates to an air separation device for separating silica sand from waste sand, comprising:

[0006] An airflow separator and a feed hopper, wherein the feed hopper is fixed at the upper feed inlet of the airflow separator;

[0007] The preselected component includes a U-shaped baffle, a first electric push rod, a rotating shaft, a connecting plate, a movable hole, a filter plate, a movable plate, a second fixed plate, and a second electric push rod. One end of the U-shaped baffle is hinged to one side of the upper end of the feed funnel. The first electric push rod is fixed to the side of the feed funnel. The rotating shaft is rotatably connected to the upper end of the first electric push rod. The connecting plate is fixed to the lower end of the U-shaped baffle on the other side away from the hinge point. The movable hole is opened in the middle of the connecting plate, and the rotating shaft is rotatably connected in the movable hole. The filter plate is fixed to the lower end of the inner side of the U-shaped baffle. The second electric push rod is fixed to both sides of the open end of the U-shaped baffle. The movable plate is movably connected to the open end of the U-shaped baffle. The second fixed plate is fixed to the middle of both ends of the movable plate, and its side is fixed to the movable end of the second electric push rod.

[0008] Furthermore, the pre-selected component also includes a first fixing plate and a support plate, one end of the first fixing plate is fixed to the side of the feed funnel, and the first electric push rod is fixed to the upper end of the first fixing plate.

[0009] Furthermore, the preselected component also includes a sealing strip, which is fixed to the side of the movable plate and movably connected to the opening end of the U-shaped baffle on the other side.

[0010] Furthermore, the length and width of the filter plate are equal to the length and width of the feed funnel, and the filter plate is movably connected to the top of the feed funnel.

[0011] Furthermore, it also includes a guide assembly, which includes a support rod and a guide groove. The support rod is fixed to the top of the airflow separator and located on the side of the feed hopper, and the guide groove is fixed to the upper end of the support rod.

[0012] Furthermore, the guide component also includes a slot, which is formed at the upper end of the guide groove.

[0013] Furthermore, the guide groove is inclined, with its higher end close to the feed funnel.

[0014] This utility model has the following beneficial effects:

[0015] This invention, through a pre-selection component, allows materials to be poured into a U-shaped baffle and fall onto a filter plate. Small particles of mineral sand fall into the feed hopper, while large particles are retained on the filter plate. After production, the first electric push rod on the first fixed plate is activated, extending its movable end and causing the support plate and connecting plate to rise. This causes the rotating shaft to move and rotate in the movable hole, lifting one end of the U-shaped baffle and the filter plate. Subsequently, the second electric push rod is activated, moving the second fixed plate, movable plate, and sealing strip away from the U-shaped baffle. Large particles of mineral sand retained on the filter plate slide out along the inclined filter plate. This design retains larger particles of mineral sand at the feed end, preventing them from entering the airflow separation. The inclined filter plate, combined with the action of the electric push rod, allows the retained large particles to automatically slide down the inclined surface without manual intervention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the U-shaped baffle and filter plate of this utility model when they are raised;

[0019] Figure 3 This is a schematic diagram of the guide groove structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the pre-selected component structure of this utility model.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 10. Airflow separator; 11. Feed hopper; 20. U-shaped baffle; 21. First fixed plate; 22. First electric push rod; 220. Rotating shaft; 23. Support plate; 24. Connecting plate; 25. Movable hole; 26. Filter plate; 27. Movable plate; 270. Sealing strip; 28. Second fixed plate; 29. ​​Second electric push rod; 30. Support rod; 31. Guide groove; 32. Slotting. Detailed Implementation

[0023] 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.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please see Figure 1-4 As shown, this utility model is an air separation device for separating silica sand from waste sand, comprising:

[0026] The airflow separator 10 and the feed hopper 11 are fixed at the upper feed inlet of the airflow separator 10.

[0027] The air classifier 10 is provided with high-speed airflow by a blower. The material enters the classification zone through the feeding device and is suspended by the airflow. Low-density silica sand particles move upward with the airflow to the collection zone, while high-density zircon sand / chromite particles sink and are discharged. The feed hopper 11 is used to feed the material into the air classifier 10.

[0028] The pre-selected components include a U-shaped baffle 20, a first electric push rod 22, a rotating shaft 220, a connecting plate 24, a movable hole 25, a filter plate 26, a movable plate 27, a second fixed plate 28, and a second electric push rod 29. One end of the U-shaped baffle 20 is hinged to one side of the upper end of the feed funnel 11. The first electric push rod 22 is fixed to the side of the feed funnel 11. The rotating shaft 220 is rotatably connected to the upper end of the first electric push rod 22. The connecting plate 24 is fixed to the lower end of the U-shaped baffle 20 on the other side away from the hinge point. The movable hole 25 is opened in the middle of the connecting plate 24, and the rotating shaft 220 is rotatably connected in the movable hole 25. The filter plate 26 is fixed to the lower inner side of the U-shaped baffle 20. The second electric push rod 29 is fixed to both sides of the open end of the U-shaped baffle 20. The movable plate 27 is movably connected to the open end of the U-shaped baffle 20. The second fixed plate 28 is fixed to the middle of both ends of the movable plate 27, and its side is fixed to the movable end of the second electric push rod 29.

[0029] The preselected components also include a first fixing plate 21 and a support plate 23. One end of the first fixing plate 21 is fixed to the side of the feed hopper 11, and the first electric push rod 22 is fixed to the upper end of the first fixing plate 21.

[0030] The pre-selected components also include a sealing strip 270, which is fixed to the side of the movable plate 27 and movably connected to the opening end of the U-shaped baffle 20 on the other side;

[0031] The length and width of the filter plate 26 are equal to the length and width of the feed funnel 11, and the filter plate 26 is movably connected to the top of the feed funnel 11.

[0032] The U-shaped baffle 20 serves as a blocking mechanism, the first fixed plate 21 provides support, the first electric push rod 22 can be repositioned (model optional: SMC CDQ2B series), the rotating shaft 220 facilitates the extension of the first electric push rod 22, the support plate 23 provides support, the connecting plate 24 provides connection, the movable hole 25 facilitates the movement of the rotating shaft 220, the filter plate 26 provides filtration, the movable plate 27 is used to close the opening of the U-shaped baffle 20, the sealing strip 270 provides sealing, the second fixed plate 28 provides connection, and the second electric push rod 29 can be repositioned (model optional: SMC MDX2 series miniature electric cylinder).

[0033] Working principle:

[0034] Material is poured into the U-shaped baffle 20 and falls onto the filter plate 26. Small particles of mineral sand fall into the feed hopper 11, while large particles are trapped on the filter plate 26. After production is completed, the first electric push rod 22 on the first fixed plate 21 is activated. The movable end of the first electric push rod 22 extends, causing the support plate 23 and the connecting plate 24 to rise, so that the rotating shaft 220 moves and rotates in the movable hole 25, rotating and lifting one end of the U-shaped baffle 20 and the filter plate 26. Then, the second electric push rod 29 is activated, causing the second fixed plate 28, the movable plate 27, and the sealing strip 270 to move away from the U-shaped baffle 20. The large particles of mineral sand trapped on the filter plate 26 slide out along the inclined filter plate 26.

[0035] This step traps larger particles of mineral sand at the feed end to prevent them from entering the airflow separation. The inclined filter plate 26, combined with the action of the electric push rod, causes the trapped large particles to slide down the inclined surface automatically without manual intervention.

[0036] Please see Figure 1 , Figure 3 As shown, this embodiment, based on the above embodiment, further includes:

[0037] The guide assembly includes a support rod 30 and a guide groove 31. The support rod 30 is fixed to the top of the airflow separator 10 and located on the side of the feed hopper 11. The guide groove 31 is fixed to the upper end of the support rod 30.

[0038] The guide assembly also includes a slot 32, which is formed at the upper end of the guide groove 31;

[0039] The guide groove 31 is inclined, and its higher end is close to the feed funnel 11;

[0040] The support rod 30 provides support, the guide groove 31 provides guidance, and the slot 32 facilitates the rotation of the U-shaped baffle 20 and the movable plate 27.

[0041] Working principle:

[0042] The support rod 30 is fixed on the airflow separator 10. After the guide groove 31 is installed, the U-shaped baffle 20 and the filter plate 26 are rotated and lifted. The movable plate 27 is opened and the lower end moves above the slot 32. Large particles of mineral sand slide into the guide groove 31 and are discharged into the external storage equipment.

[0043] This step facilitates the removal of large particles of mineral sand from the filter plate 26.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An air separation device for separating silica sand from waste sand, characterized in that, include: An air classifier (10) and a feed hopper (11), wherein the feed hopper (11) is fixed at the upper feed inlet of the air classifier (10); The preselected components include a U-shaped baffle (20), a first electric push rod (22), a rotating shaft (220), a connecting plate (24), a movable hole (25), a filter plate (26), a movable plate (27), a second fixed plate (28), and a second electric push rod (29). One end of the U-shaped baffle (20) is hinged to one side of the upper end of the feed funnel (11). The first electric push rod (22) is fixed to the side of the feed funnel (11). The rotating shaft (220) is rotatably connected to the upper end of the first electric push rod (22). The connecting plate (24) is fixed. At the lower end of the U-shaped baffle (20) on the side away from the hinge point, the movable hole (25) is opened in the middle of the connecting plate (24), and the rotating shaft (220) is rotatably connected in the movable hole (25). The filter plate (26) is fixed in the lower end of the inner side of the U-shaped baffle (20). The second electric push rod (29) is fixed on both sides of the opening end of the U-shaped baffle (20). The movable plate (27) is movably connected to the opening end of the U-shaped baffle (20). The second fixed plate (28) is fixed in the middle of both ends of the movable plate (27), and its side is fixed to the movable end of the second electric push rod (29).

2. The air separation device for separating silica sand from waste sand according to claim 1, characterized in that: The preselected components also include a first fixing plate (21) and a support plate (23). One end of the first fixing plate (21) is fixed to the side of the feed hopper (11), and the first electric push rod (22) is fixed to the upper end of the first fixing plate (21).

3. The air separation device for separating silica sand from waste sand according to claim 1, characterized in that: The preselected component also includes a sealing strip (270), which is fixed to the side of the movable plate (27) and movably connected to the opening end of the U-shaped baffle (20) on the other side.

4. The air separation device for separating silica sand from waste sand according to claim 1, characterized in that: The length and width of the filter plate (26) are equal to the length and width of the feed funnel (11), and the filter plate (26) is movably connected to the top of the feed funnel (11).

5. The air separation device for separating silica sand from waste sand according to claim 1, characterized in that: It also includes a guide assembly, which includes a support rod (30) and a guide groove (31). The support rod (30) is fixed to the top of the airflow separator (10) and located on the side of the feed hopper (11). The guide groove (31) is fixed to the upper end of the support rod (30).

6. The air separation device for separating silica sand from waste sand according to claim 5, characterized in that: The guide component also includes a slot (32), which is formed at the upper end of the guide groove (31).

7. The air separation device for separating silica sand from waste sand according to claim 5, characterized in that: The guide groove (31) is inclined, and its higher end is close to the feed funnel (11).

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