Sorting device for coal mining

Abstract

The utility model relates to a sorting device for coal mining, which belongs to the technical field of coal production and processing equipment and comprises a conveying belt, a second screening net for screening coal mines is mounted above the conveying belt, and a first screening net for screening the coal mines is mounted above the second screening device. A telescopic rod used for pushing the first screening net to move is installed on one side of the first screening net, a linkage device is installed between the first screening net and the second screening net, and a feeding pipe is installed above the first screening net. Compared with the prior art, the double-layer screening device has the advantages that the telescopic rod drives the first screening net, then the linkage device drives the first screening net to screen, the double-layer screening effect is achieved, coal gangue is separated, the coal gangue sorting efficiency is improved, the structure is simple and reasonable, the design is novel, the use reliability of the double-layer screening device is improved, and the working efficiency is improved. The practicability is high, and the use by a user is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coal production and processing equipment, in particular to a sorting device used in coal mining. Background Art

[0002] Gangue is a solid waste discharged during the coal mining and coal washing process. It is a kind of black-gray rock with a lower carbon content and harder than coal that is associated with the coal seam during the coal formation process. Gangue needs to be sorted out from the coal after coal mining. Gangue is a solid waste discharged during the coal mining and coal washing process. It is a kind of black-gray rock with a lower carbon content and harder than coal that is associated with the coal seam during the coal formation process. It includes excavation gangue during tunnel excavation, gangue mined from the roof, floor and interlayer during mining, and washed gangue picked out during coal washing. Its main components are Al2O3 and SiO2, and it also contains varying amounts of Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 and trace rare elements (gallium, vanadium, titanium, cobalt).

[0003] However, the existing coal gangue sorting is done manually, which has low sorting efficiency and high labor intensity, affecting the sorting efficiency. The coal gangue particles are large and of different sizes, making them difficult to collect and having low sorting efficiency, and require refinement processing.

[0004] Therefore, we have made improvements to this and proposed a sorting device for use in coal mining. Utility Model Content

[0005] The utility model aims to solve the above technical problems and provides a sorting device used in coal mining.

[0006] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0007] A sorting device used in coal mining comprises a conveyor belt, a second screening net for coal screening is installed above the conveyor belt, a first screening net for coal screening is installed above the second screening device, a telescopic rod for pushing the first screening net to move is installed on one side of the first screening net, a linkage device is installed between the first screening net and the second screening net, and a feed pipe is installed above the first screening net.

[0008] Preferably, support plates are installed on both sides of the conveyor belt, the upper ends of the two support plates are connected to protective plates, and the feed pipe is connected to the lower ends of the protective plates.

[0009] Preferably, a feed port for feeding is provided on the protective plate.

[0010] Preferably, the feed pipe is a frustum structure.

[0011] Preferably, a support frame is installed at the lower end of the first screening net, the support frame is fixedly connected to the protective plate through an L-shaped plate, and the telescopic rod is fixedly connected to the support frame.

[0012] Preferably, the linkage device includes a connecting rod between the second screening net and the first screening net, the two ends of the connecting rod are respectively hinged to the second screening net and the first screening net, a fixed plate is installed at the lower end of the first screening net, and a limit plate is relatively installed on the second screening net, guide rods are installed on both sides of the fixed plate and the guide rods pass through the two limit plates, and a spring is installed on the outer side of the guide rod.

[0013] Preferably, a waist hole is provided on the limiting plate to cooperate with the movement of the guide rod.

[0014] After adopting the above structure, the utility model has the following advantages:

[0015] The utility model drives the first screening net through the telescopic rod, and then drives the first screening net for screening through the linkage device, thereby achieving a double-layer screening effect, thereby separating coal gangue and improving the efficiency of coal gangue sorting. The utility model has a simple and reasonable structure and a novel design, thereby improving its reliability in use, improving work efficiency, having strong practicality, and being easy for users to use.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a left view of the utility model;

[0020] Figure 3 It is the installation schematic diagram of the linkage device of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the linkage device of the utility model.

[0022] As shown in the figure: 1. Conveyor belt; 2. Second screening net; 3. First screening net; 4. Linkage device; 401. Linkage rod; 402. Fixed plate; 403. Limiting plate; 404. Spring; 405. Guide rod; 5. Feed pipe; 6. Support plate; 7. Protective plate; 8. Feed port; 9. Support frame; 10. L-shaped plate; 11. Telescopic rod; 12. Waist hole. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] The utility model is further described in detail below in conjunction with the full text.

[0026] Combined with Figure 1-Figure 4 ,

[0027] A sorting device used in coal mining comprises a conveyor belt 1, a second screening net 2 for coal screening is installed above the conveyor belt 1, a first screening net 3 for coal screening is installed above the second screening device, a telescopic rod 11 for pushing the first screening net 3 to move is installed on one side of the first screening net 3, a linkage device 4 is installed between the first screening net 3 and the second screening net 2, and a feed pipe 5 is installed above the first screening net 3.

[0028] When the utility model is implemented, Figure 1-Figure 4 As shown, support plates 6 are installed on both sides of the conveyor belt 1, and the upper ends of the two support plates 6 are connected with protective plates 7, the feed pipe 5 is connected to the lower end of the protective plate 7, and the lower end of the first screening net 3 is installed with a support frame 9, the support frame 9 is fixedly connected to the protective plate 7 through an L-shaped plate 10, and the telescopic rod 11 is fixedly connected to the support frame 9. Specifically, the two support plates 6 can be fixedly connected to the two sides of the conveyor belt 1 bracket by bolts, the protective plate 7, the support frame 9 and the L-shaped plate 10 are fixedly connected by bolts, and the telescopic rod 11 is installed on the support frame 9.

[0029] A slider is installed at the lower end of the first screening net 3, and a slide groove used in conjunction with the slider is provided on the support frame 9. The telescopic rod 11 works to drive the first screening net 3 to move, and the slider slides within the slide groove to limit the position.

[0030] The feed pipe 5 is a truncated cone structure, and a feed port 8 for feeding is provided on the protective plate 7. Specifically, coal can enter the feed pipe 5 from the feed port 8, and then fall from the feed pipe 5 onto the first screening net 3 for preliminary screening. Because the feed pipe 5 is a truncated cone structure, rapid feeding can be achieved.

[0031] When the utility model is implemented, Figure 2 and Figure 3 As shown, the linkage device 4 includes a connecting rod 401 between the second screening net 2 and the first screening net 3, and the two ends of the connecting rod 401 are hinged to the second screening net 2 and the first screening net 3 respectively. A fixed plate 402 is installed at the lower end of the first screening net 3, and a limiting plate 403 is relatively installed on the second screening net 2. Guide rods 405 are installed on both sides of the fixed plate 402, and the guide rods 405 pass through the two limiting plates 403. A spring 404 is installed on the outer side of the guide rod 405. Specifically, one end of the spring 404 is fixed on the side wall of the fixed plate 402, and the other end is clearance-matched with the limiting plate 403. The spring 404 is arranged in two groups, and the two ends of the two springs 404 are located between the two limiting plates 403 and the fixed plate 402. The limiting plate 403 is provided with a waist hole 12 for matching the movement of the guide rod 405. The telescopic rod 11 works to move the first screening net 3, thereby moving the fixed plate 402, and the guide rod 405 moves in the waist hole 12, and the position of the second screening net 2 is adjusted by the spring 404, and the hinged connecting rod 401 is used to limit the position.

[0032] One end of the spring 404 is fixed on the side wall of the fixed plate 402, and the other end is clearance-matched with the limit plate 403. When the first screening net 3 drives the second screening net 2 to move, the waist hole 12 allows the guide rod 405 to move left and right and adjust its position up and down. The spring 404 can accelerate the vibration and swing frequency of the second screening net 2, so that the screening effect is better.

[0033] The working principle of this utility model:

[0034] The coal can enter the feed pipe 5 from the feed port 8, and then fall onto the first screening net 3 from the feed pipe 5. The telescopic rod 11 works to drive the first screening net 3 to move, thereby driving the fixed plate 402 to move, and the guide rod 405 moves in the waist hole 12. The position of the second screening net 2 is adjusted by the spring 404. At the same time, the hinged connecting rod 401 is used to limit the position, accelerate the vibration and swing frequency of the second screening net 2, so that the coal screened by the first screening net 3 falls into the second screening net 2 for continued screening, and finally falls on the conveyor belt 1 to be transmitted to the next process.

[0035] The above describes the utility model and its implementation methods, which is not restrictive. What is shown in the full text is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A sorting device for coal mining, comprising a conveyor belt (1), characterized in that: A second screening net (2) for coal screening is installed above the conveyor belt (1), a first screening net (3) for coal screening is installed above the second screening net (2), a telescopic rod (11) for pushing the first screening net (3) to move is installed on one side of the first screening net (3), a linkage device (4) is installed between the first screening net (3) and the second screening net (2), and a feed pipe (5) is installed above the first screening net (3).

2. A separation device for coal mining according to claim 1, characterized in that: Support plates (6) are installed on both sides of the conveyor belt (1), the upper ends of the two support plates (6) are connected to protective plates (7), and the feed pipe (5) is connected to the lower end of the protective plate (7).

3. A separation device for coal mining according to claim 2, characterized in that: The protective plate (7) is provided with a feeding port (8) for feeding materials.

4. A separation device for coal mining according to claim 1, characterized in that: The feed pipe (5) is a truncated cone structure.

5. A separation device for coal mining according to claim 2, characterized in that: A support frame (9) is installed at the lower end of the first screening net (3); the support frame (9) is fixedly connected to the protective plate (7) via an L-shaped plate (10); and the telescopic rod (11) is fixedly connected to the support frame (9).

6. A separation device for coal mining according to claim 1, characterized in that: The linkage device (4) comprises a linkage rod (401) between the second screening net (2) and the first screening net (3), the two ends of the linkage rod (401) are respectively hinged to the second screening net (2) and the first screening net (3), a fixing plate (402) is installed at the lower end of the first screening net (3), a limiting plate (403) is installed on the second screening net (2) in a relative manner, guide rods (405) are installed on both sides of the fixing plate (402), and the guide rods (405) pass through the two limiting plates (403), and a spring (404) is installed on the outer side of the guide rod (405).

7. A separation device for coal mining according to claim 6, characterized in that: The limiting plate (403) is provided with a waist hole (12) for cooperating with the movement of the guide rod (405).

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