A screening device

Abstract

This application belongs to the field of coal mining technology, and particularly relates to a screening device. This application provides a screening device, including a screening component and a transport component. The screening component includes a first support frame, a guide chute, a first screening mechanism, and a second screening mechanism. The guide chute is installed on the first support frame. The first screening mechanism includes a first screening basket, a first suspension member, and a second suspension member. The length of the second suspension member is adjustable. The second screening mechanism is located below the first screening mechanism. The transport component is located at the tail end of the first and second screening mechanisms. In the technical solution provided by this application, the tilt angle of the first screening mechanism is adjusted by adjusting the length of the second suspension member, thereby adjusting the residence time of the material to be screened in the bottom lifting screening mechanism, meeting different screening needs, and solving the technical defects of existing coal mine screening equipment, which suffers from a single screening method and an inability to make adaptive adjustments.

Description

Technical Field

[0001] This application belongs to the field of coal mining technology, and in particular relates to a screening device. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, tunnels are usually dug underground to mine the coal; this is called an underground coal mine. When the coal seam is very close to the surface, the surface soil is usually stripped off to mine the coal; this is called an open-pit coal mine.

[0003] After coal mining, screening the extracted coal is a crucial step in coal processing. Screening equipment is used to separate coal of different particle sizes. Its core purpose is to screen coal based on particle size, separating coal that meets specific particle size requirements to satisfy the needs of different applications. However, existing screening equipment has a simple structure, offers only a single screening method, cannot perform comprehensive screening, has poor screening efficiency, and cannot be adapted to different screening conditions, resulting in limited flexibility.

[0004] Therefore, developing a screening device to address the technical shortcomings of existing coal mine screening equipment, such as its single screening method and inability to make adaptive adjustments, has become an urgent problem for those skilled in the art. Utility Model Content

[0005] Therefore, it is necessary to provide a screening device to address the technical shortcomings of existing coal mine screening equipment, which suffers from a single screening method and an inability to make adaptive adjustments.

[0006] This application provides a screening device, which includes a screening component and a transport component. The screening component includes a first support frame, a guide chute, a first screening mechanism, and a second screening mechanism. The guide chute is installed on the first support frame. The first screening mechanism includes a first screening basket, a first suspension member, and a second suspension member. The outlet of the guide chute is located above the first screening basket. One end of the first suspension member and the second suspension member are respectively fixed to the first support frame, and the other end of the first suspension member and the second suspension member are respectively connected to the first screening basket. The length of the second suspension member is adjustable. The second screening mechanism is located below the first screening mechanism. The transport component is located at the tail end of the first screening mechanism and the second screening mechanism, and is used to transport the material to be screened through the first screening structure and the second screening mechanism.

[0007] In one embodiment, the second screening mechanism includes a third suspension member and a second screening basket. One end of the third suspension member is fixed to the bottom end of the first screening basket, and the other end of the third suspension member is connected to the second screening basket. The length of the third suspension member is adjustable.

[0008] In one embodiment, the bottom end of the first screening basket is provided with a first screening screen, and the bottom end of the second screening basket is provided with a second screening screen, wherein the mesh diameter of the first screening screen is larger than the mesh diameter of the second screening basket.

[0009] In one embodiment, the first suspension component includes: a first connecting seat, a first connecting rod, and a first hook. The first connecting seat is fixedly connected to the first support frame, and the two ends of the first connecting rod are respectively connected to the first connecting seat and the first hook. The first screening basket is suspended from the first hook.

[0010] In one embodiment, the second suspension component includes: a second connecting seat, a second connecting rod, a second traction rod, a second baffle, a second mounting frame, a second spring, and a second hook. The second connecting seat is mounted on the first support frame, and the second mounting frame is disposed below the second connecting seat. The second connecting seat has a U-shaped structure, and its side wall has a groove along the vertical direction. The second connecting rod has an "I"-shaped structure and moves in the groove. One end of the second traction rod is connected to the second connecting rod, and the other end of the second traction rod is connected to the second baffle. The second traction rod passes through the second mounting frame, and the outer wall of the second traction rod is fitted with the second spring. The second mounting frame has a second hook on the side away from the second connecting seat, and the first screening basket is suspended by the second hook.

[0011] In one embodiment, the second suspension component further includes a second adjusting rod and a U-shaped frame, the U-shaped frame being connected to the side wall of the second connecting rod, and the two ends of the adjusting rod being connected to the second connecting seat and the U-shaped frame, respectively.

[0012] In one embodiment, the third suspension component includes: a third connecting seat, a third connecting rod, a third traction rod, a third mounting frame, a third baffle, a third spring, and a third hook; the third connecting seat is fixedly connected to the lower end of the first screening basket, one end of the third connecting rod is connected to the third connecting seat, and the other end of the third connecting rod is rotatably connected to the third traction rod; the third mounting frame is disposed below the third connecting rod, the third traction rod passes through the third mounting frame, and the third spring is sleeved on the outer wall of the third traction rod; the third hook is provided on the side of the third mounting frame away from the third connecting seat, and the second screening basket is suspended from the third hook.

[0013] In one embodiment, the transport component includes: a second support frame and three sets of conveyor belts, the three sets of conveyor belts being fixed to the second support frame, the first set of conveyor belts being disposed at the tail end of the first screening mechanism, the second set of conveyor belts being disposed at the tail end of the second screening mechanism, and the third set of conveyor belts being disposed below the second screening basket.

[0014] In one embodiment, the first screening mechanism further includes a vibration motor disposed on the side wall of the first screening basket.

[0015] In one embodiment, the number of the first suspension components is 2 sets, and the number of the second suspension components is 2 sets;

[0016] And / or,

[0017] The number of the third suspension components is 4 sets.

[0018] In summary, this application provides a screening device, including a screening component and a transport component. The screening component includes a first support frame, a guide chute, a first screening mechanism, and a second screening mechanism. The guide chute is installed on the first support frame. The first screening mechanism includes a first screening basket, a first suspension member, and a second suspension member. The length of the second suspension member is adjustable. The second screening mechanism is located below the first screening mechanism. The transport component is located at the tail end of the first and second screening mechanisms. In the technical solution provided by this application, the tilt angle of the first screening mechanism is adjusted by adjusting the length of the second suspension member, thereby adjusting the residence time of the material to be screened in the bottom lifting screening mechanism. This meets different screening needs and solves the technical defects of existing coal mine screening equipment, which suffers from a single screening method and an inability to make adaptive adjustments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of a screening device provided in the embodiments of this application;

[0021] Figure 2 A partially enlarged schematic diagram of the second suspension member (i.e., point A) in a screening device provided in an embodiment of this application;

[0022] Figure 3 A partially enlarged schematic diagram of the third suspension component in a screening device provided in an embodiment of this application;

[0023] The components include: second support frame 1, conveyor belt 2, first support frame 3, guide chute 4, first screening basket 5, vibrating motor 6, second screening basket 7, second adjusting rod 8, second connecting seat 9, second connecting rod 10, U-shaped frame 11, second mounting frame 12, second traction rod 13, second spring 14, second baffle 15, third connecting seat 16, third connecting rod 17, third traction rod 18, third mounting frame 19, third spring 20, first connecting seat 21, first connecting rod 22, and third baffle 23. Detailed Implementation

[0024] This application provides a screening device to address the technical shortcomings of existing coal mine screening equipment, which suffers from a single screening method and an inability to make adaptive adjustments.

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Please see Figure 1 This application provides a screening device, including a screening component and a transport component. The screening component includes a first support frame 3, a guide chute 4, a first screening mechanism, and a second screening mechanism. The guide chute 4 is installed on the first support frame 3. The first screening mechanism includes a first screening basket 5, a first suspension member, and a second suspension member. The outlet of the guide chute 4 is located above the first screening basket 5. One end of the first suspension member and the second suspension member are respectively fixed to the first support frame 3, and the other end of the first suspension member and the second suspension member are respectively connected to the first screening basket 5. The length of the second suspension member is adjustable. The second screening mechanism is located below the first screening mechanism. The transport component is located at the tail end of the first screening mechanism and the second screening mechanism and is used to transport the material to be screened through the first screening structure and the second screening mechanism.

[0032] In the technical solutions provided in the embodiments of this application, the screening component screens the material to be screened (such as coal). For ease of explanation, the following description will use a screening device to screen coal. However, the screening device provided in the embodiments of this application can also screen other types of materials to be screened (such as gravel), and all of them fall within the protection scope of this application.

[0033] In the screening device provided in this embodiment, the first support frame 3 provides stable installation support for the remaining structures of the screening component. After coal enters through the guide chute 4, the outlet of the guide chute 4 is located below the first screening basket 5. Coal particles smaller than the screening particle size of the first screening basket 5 fall into the second screening mechanism. The coal screened by the first screening mechanism and the second screening mechanism is transported to a preset designated location through the transport channel of the transport component.

[0034] In the first screening mechanism, the two ends of the first screening basket 5 are connected to the first suspension component and the second suspension component, respectively. By adjusting the length of the second suspension component, the tilt angle of the first screening basket 5 can be adjusted. According to different screening effect requirements, the residence time of coal in the first screening basket 5 can be adjusted, thus achieving different screening effects and meeting diverse screening needs. Different screening effects can be achieved simply by adjusting the length of the second suspension component. The adjustment is simple and easy to operate, solving the technical defects of existing coal mine screening equipment, which suffers from a single screening method and an inability to make adaptive adjustments.

[0035] To further optimize the technical solution, while adjusting the tilt angle of the first screening basket 5, the angle of the second screening basket 7 is simultaneously adjusted to prevent the screening effect from being affected by the close spacing between the first and second screening mechanisms. Specifically, in practical applications, the first and second screening mechanisms are arranged in a parallel distribution with a certain spacing. In the technical solution provided in this application embodiment, the second screening mechanism includes a third suspension member and a second screening basket 7. One end of the third suspension member is fixed to the bottom end of the first screening basket 5, and the other end is connected to the second screening basket 7. The length of the third suspension member is adjustable. After adjusting the tilt angle of the first screening basket 5 by adjusting the length of the second suspension member, the length of the third suspension member is further adjusted accordingly to ensure sufficient screening spacing between the first and second screening mechanisms, achieving a good screening effect for coal by both mechanisms.

[0036] To further meet more diverse screening needs, the technical solution provided in this application embodiment includes a first screening mesh at the bottom of the first screening basket 5 and a second screening mesh at the bottom of the second screening basket 7. The mesh diameter of the first screening mesh is larger than that of the second screening basket 7. The larger mesh diameter of the first screening mesh allows for the screening of three different coal particle sizes. The coal particle sizes screened, from largest to smallest, are: coal at the tail end of the first screening mechanism, coal at the tail end of the second screening mechanism, and coal falling from the second screening basket 7.

[0037] In the technical solution provided by this application embodiment, while ensuring the stability of the first suspension component structure, a stable connection support can be provided for the first screening basket 5. The first suspension component also features a simple structure, comprising: a first connecting seat 21, a first connecting rod 22, and a first hook. The first connecting seat 21 is fixedly connected to the first support frame 3. Both ends of the first connecting rod 22 are connected to the first connecting seat 21 and the first hook, respectively. The first screening basket 5 is suspended from the first hook. The first connecting rod 22 is fixed to the first support component via the first connecting seat 21. The other end of the first connecting rod 22 is provided with the first hook, and the first screening basket 5 is suspended from the first hook, facilitating the connection or separation of the first screening basket 5 from the first suspension component.

[0038] Please refer to this section for further information. Figure 2 In a screening device provided in this application embodiment, the second suspension component includes: a second connecting seat 9, a second connecting rod 10, a second traction rod 13, a second baffle 15, a second mounting frame 12, a second spring 14, and a second hook. The second connecting seat 9 is installed on the first support frame 3, and the second mounting frame 12 is provided below the second connecting seat 9. The second connecting seat 9 has a U-shaped structure, and the side wall of the second connecting seat 9 has a groove in the vertical direction. The second connecting rod 10 has an "I"-shaped structure and moves in the groove. One end of the second traction rod 13 is connected to the second connecting rod 10, and the other end of the second traction rod 13 is connected to the second baffle 15. The second traction rod 13 passes through the second mounting frame 12, and the outer wall of the second traction rod 13 is fitted with a second spring 14. The second mounting frame 12 has a second hook on the side away from the second connecting seat 9, and the first screening basket 5 is suspended on the second hook.

[0039] In the second suspension component, the side wall of the U-shaped second connecting seat 9 is provided with a sliding groove. The "I"-shaped second connecting rod 10 moves in the sliding groove. The second pull rod 13 connected to the second connecting rod 10 also moves with the sliding of the second connecting rod 10, thereby driving the second mounting frame 12 to move and driving the second hook to move, thus realizing the length adjustment of the second suspension component.

[0040] To further optimize the technical solution and facilitate the adjustment of the length of the second suspension component, the technical solution provided in this application embodiment further includes a second adjusting rod 8 and a U-shaped frame 11. The U-shaped frame 11 is connected to the side wall of the second connecting rod 10, and both ends of the adjusting rod are connected to the second connecting seat 9 and the U-shaped frame 11, respectively. When adjusting the length of the second suspension component, rotating the second adjusting rod 8 causes the U-shaped frame 11 to move up or down, and the second connecting rod 10 connected to the U-shaped frame 11 moves up or down accordingly, thus realizing the adjustment of the length of the second suspension component.

[0041] Please refer to this section for further information. Figure 3 In a screening device provided in this application embodiment, the third suspension component includes: a third connecting seat 16, a third connecting rod 17, a third traction rod 18, a third mounting frame 19, a third baffle 23, a third spring 20, and a third hook; the third connecting seat 16 is fixedly connected to the lower end of the first screening basket 5, one end of the third connecting rod 17 is connected to the third connecting seat 16, and the other end of the third connecting rod 17 is rotatably connected to the third traction rod 18; the third mounting frame 19 is disposed below the third connecting rod 17, the third traction rod 18 passes through the third mounting frame 19, and the outer wall of the third traction rod 18 is fitted with a third spring 20; a third hook is provided on the side of the third mounting frame 19 away from the third connecting seat 16, and the second screening basket 7 is suspended on the third hook.

[0042] Similarly, in the third suspension component, by rotating the third connecting rod 17, the third pulling rod 18 is moved up or down, which in turn moves the third mounting frame 19 and then the third hook, thus realizing the adjustment of the length of the third suspension component.

[0043] To further optimize the technical solution, while ensuring that the transport component can transport coal of different particle sizes screened by the screening component to the preset designated location, the technical solution provided in this application embodiment also takes into account the simple structure of the transport component and its ease of daily maintenance. The transport component includes: a second support frame 1 and three sets of conveyor belts 2. The three sets of conveyor belts 2 are respectively fixed to the second support frame 1. The first set of conveyor belts 2 is set at the tail end of the first screening mechanism, the second set of conveyor belts 2 is set at the tail end of the second screening mechanism, and the third set of conveyor belts 2 is set below the second screening basket 7.

[0044] To further improve the screening efficiency of the first screening basket 5, the screening device provided in this application embodiment further includes a vibration motor 6, which is disposed on the side wall of the first screening basket 5. In a specific screening device, the vibration frequency of the vibration motor 6 can be adjusted according to different actual screening requirements to adjust the residence time of coal in the first screening basket 5 and achieve different screening effects.

[0045] To better connect and fix the first screening basket 5, the technical solution provided in this application embodiment has two sets of first suspension members and two sets of second suspension members. Each of the two sets of first and second suspension members can be respectively disposed on both sides of the first screening basket 5.

[0046] Similarly, to better connect and fix the first screening basket 5, the technical solution provided in this application embodiment uses four sets of third suspension components. These four sets of third suspension components are respectively arranged around the second screening basket 7.

[0047] In summary, this application provides a screening device, including a screening component and a transport component. The screening component includes a first support frame, a guide chute, a first screening mechanism, and a second screening mechanism. The guide chute is installed on the first support frame. The first screening mechanism includes a first screening basket, a first suspension member, and a second suspension member. The length of the second suspension member is adjustable. The second screening mechanism is located below the first screening mechanism. The transport component is located at the tail end of the first and second screening mechanisms. In the technical solution provided by this application, the tilt angle of the first screening mechanism is adjusted by adjusting the length of the second suspension member, thereby adjusting the residence time of the material to be screened in the bottom lifting screening mechanism. This meets different screening needs and solves the technical defects of existing coal mine screening equipment, which suffers from a single screening method and an inability to make adaptive adjustments.

[0048] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0049] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A screening device, characterized in that, The screening device includes a screening component and a transport component. The screening component includes a first support frame, a guide chute, a first screening mechanism, and a second screening mechanism. The guide chute is installed on the first support frame. The first screening mechanism includes a first screening basket, a first suspension member, and a second suspension member. The outlet of the guide chute is located above the first screening basket. One end of the first suspension member and the second suspension member are respectively fixed to the first support frame, and the other end of the first suspension member and the second suspension member are respectively connected to the first screening basket. The length of the second suspension member is adjustable. The second screening mechanism is located below the first screening mechanism. The transport component is located at the tail end of the first screening mechanism and the second screening mechanism and is used to transport the material to be screened through the first screening mechanism and the second screening mechanism.

2. The screening device according to claim 1, characterized in that, The second screening mechanism includes a third suspension member and a second screening basket. One end of the third suspension member is fixed to the bottom end of the first screening basket, and the other end of the third suspension member is connected to the second screening basket. The length of the third suspension member is adjustable.

3. The screening apparatus of claim 2, wherein, The bottom of the first screening basket is provided with a first screening screen, and the bottom of the second screening basket is provided with a second screening screen. The mesh diameter of the first screening screen is larger than the mesh diameter of the second screening basket.

4. The screening apparatus of claim 3, wherein, The first suspension component includes: a first connecting seat, a first connecting rod, and a first hook. The first connecting seat is fixedly connected to the first support frame. The two ends of the first connecting rod are respectively connected to the first connecting seat and the first hook. The first screening basket is suspended on the first hook.

5. The screening apparatus of claim 4, wherein, The second suspension component includes: a second connecting seat, a second connecting rod, a second traction rod, a second baffle, a second mounting frame, a second spring, and a second hook. The second connecting seat is mounted on the first support frame, and the second mounting frame is provided below the second connecting seat. The second connecting seat has a U-shaped structure, and its side wall has a groove along the vertical direction. The second connecting rod has an "I"-shaped structure and moves in the groove. One end of the second traction rod is connected to the second connecting rod, and the other end of the second traction rod is connected to the second baffle. The second traction rod passes through the second mounting frame, and the second spring is sleeved on the outer wall of the second traction rod. The second hook is provided on the side of the second mounting frame away from the second connecting seat, and the first screening basket is suspended on the second hook.

6. The screening apparatus of claim 5, wherein, The second suspension component further includes a second adjusting rod and a U-shaped frame, wherein the U-shaped frame is connected to the side wall of the second connecting rod, and both ends of the adjusting rod are respectively connected to the second connecting seat and the U-shaped frame.

7. The screening apparatus of claim 2, wherein, The third suspension component includes: a third connecting seat, a third connecting rod, a third traction rod, a third mounting frame, a third baffle, a third spring, and a third hook; the third connecting seat is fixedly connected to the lower end of the first screening basket, one end of the third connecting rod is connected to the third connecting seat, and the other end of the third connecting rod is rotatably connected to the third traction rod; the third mounting frame is located below the third connecting rod, the third traction rod passes through the third mounting frame, and the third spring is sleeved on the outer wall of the third traction rod; the third hook is provided on the side of the third mounting frame away from the third connecting seat, and the second screening basket is suspended from the third hook.

8. The screening apparatus of claim 2, wherein, The transport assembly includes a second support frame and three sets of conveyor belts. The three sets of conveyor belts are respectively fixed to the second support frame. The first set of conveyor belts is located at the tail end of the first screening mechanism, the second set of conveyor belts is located at the tail end of the second screening mechanism, and the third set of conveyor belts is located below the second screening basket.

9. The screening apparatus of claim 1, wherein, The first screening mechanism further includes a vibration motor, which is disposed on the side wall of the first screening basket.

10. The screening apparatus of claim 2, wherein, The number of the first suspension components is 2 sets, and the number of the second suspension components is 2 sets; And / or, The number of the third suspension components is 4 sets.

Images