Screening device for grotto coal mine

Abstract

The utility model relates to a screening device for a grotto coal mine, which belongs to the technical field of coal production and processing equipment and comprises a sorting shell, a rotatable sorting roller is mounted in the sorting shell, a rotatable sorting stirring device is mounted in the sorting roller, and the sorting stirring device is connected with the sorting shell. After the structure is adopted, the coal rod stone sorting machine has the advantages that the sorting roller and the sorting stirring device are driven by the driving device to rotate and sort coal rod stones in the sorting roller, so that large coal gangue and small coal gangue are separated, the sorting efficiency is improved, the labor intensity of workers is reduced, the labor intensity of workers is reduced, and the labor intensity of workers is reduced. The coal gangue sorting device is simple and reasonable in structure and novel in design, so that the use reliability of the coal gangue sorting device is improved, the working efficiency is improved, the practicability is high, and the coal gangue sorting device is convenient for a user to use.

Description

Technical Field

[0001] The utility model relates to the technical field of coal production and processing equipment, in particular to a screening device used in cave coal mines. 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 make improvements to this and propose a coal gangue sorting device. Utility Model Content

[0005] The utility model aims to solve the above technical problems and provides a screening device for cave coal mines.

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

[0007] A screening device for a cave coal mine comprises a sorting shell, a rotatable sorting drum is installed in the sorting shell, a rotatable sorting stirring device is installed in the sorting drum, and a driving device for driving the sorting drum and the sorting stirring device is installed on one side of the sorting shell;

[0008] The sorting and stirring device comprises a rotating shaft that can rotate in the sorting drum, and the rotating shaft bearing is connected and extends to the outside of the sorting drum, and multiple groups of salvaging arms are installed on the outside of the rotating shaft, and the first sorting holes are evenly opened on the surface of the salvaging arms;

[0009] A partition is installed on the inner wall of the sorting roller, a fixing ring is installed in the sorting shell, a connecting plate is installed in the fixing ring, and one end of the rotating shaft is connected to the connecting plate by a bearing, and a limiting groove is provided at one end of the fixing ring close to the sorting roller to cooperate with the rotation of the sorting roller.

[0010] Preferably, the inner wall of the fixing ring is an inwardly inclined structure.

[0011] Preferably, the driving device includes a fixed plate and a driving motor on the fixed plate, a connecting shaft is installed on the bearing on the sorting shell, a driving gear and a first pulley are installed on the outer side of the connecting shaft, a second pulley is installed on the output end of the driving motor and the outer side of the rotating shaft, the second pulley and the first pulley are connected by a belt, and teeth are installed on the outer side of the sorting drum and are meshed with the driving gear.

[0012] Preferably, a supporting leg is installed at the lower end of the sorting shell, and the fixing plate is fixedly connected to the supporting leg.

[0013] Preferably, a discharge pipe is installed at the lower end of the sorting shell on one side close to the driving device.

[0014] Preferably, a discharge gate is installed at one end of the sorting roller close to the driving device.

[0015] Preferably, the sorting roller and the sorting stirring device are arranged at an angle.

[0016] After adopting the above structure, the utility model has the following advantages:

[0017] The utility model drives the sorting roller and the sorting stirring device to rotate and sort the coal rod stones in the sorting roller through a driving device, thereby separating large and small coal gangue and improving the coal gangue sorting efficiency. 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.

[0018] 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

[0019] 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.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a cross-sectional view of the utility model.

[0022] Figure 3 It is a schematic diagram of the installation of the fixing ring of the utility model.

[0023] Figure 4 It is a structural schematic diagram of the fixing ring of the utility model.

[0024] Figure 5 It is a schematic diagram of the installation of the sorting and stirring device of the utility model.

[0025] As shown in the figure: 1. Sorting shell; 2. Sorting roller; 201. Partition; 3. Sorting stirring device; 301. Rotating shaft; 302. Salvage arm; 303. First sorting hole; 4. Driving device; 401. Fixed plate; 402. Driving motor; 403. Driving gear; 404. First pulley; 405. Second pulley; 406. Connecting shaft; 5. Fixed ring; 6. Connecting plate; 7. Limiting groove; 8. Support leg; 9. Discharging door; 10. Discharging pipe. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] The utility model is further described in detail below in conjunction with the full text.

[0029] Combined with Figure 1-Figure 5 A screening device for cave coal mines comprises a sorting shell 1, a rotatable sorting roller 2 is installed in the sorting shell 1, a rotatable sorting stirring device 3 is installed in the sorting roller 2, and a driving device 4 for driving the sorting roller 2 and the sorting stirring device 3 is installed on one side of the sorting shell 1. Specifically, coal rods enter from the inlet of the sorting shell 1, and then enter the sorting roller 2. The driving device 4 drives the sorting roller 2 and the sorting stirring device 3 to work to sort out coal rods of different sizes.

[0030] When the utility model is implemented, Figure 2-Figure 5As shown, the sorting and stirring device 3 includes a rotating shaft 301 that can rotate in the sorting drum 2. The rotating shaft 301 is connected to the sorting drum 2 by a bearing and extends to the outside of the sorting drum 2. A plurality of groups of salvaging arms 302 are installed on the outside of the rotating shaft 301. The surface of the salvaging arms 302 is evenly provided with first sorting holes 303. A partition plate 201 is installed on the inner wall of the sorting drum 2. A fixing ring 5 is installed in the sorting shell 1. A connecting plate 6 is installed in the fixing ring 5. One end of the rotating shaft 301 is connected to the connecting plate 6 by a bearing. The fixing ring 5 is provided at one end close to the sorting drum 2. Cooperating with the limiting groove 7 for rotating the sorting drum 2, the inner wall of the fixing ring 5 is an inwardly inclined structure, and the driving device 4 can drive the rotating shaft 301 and the sorting drum 2 to rotate. The coal rods entering from the inlet of the sorting shell 1 pass through the fixing ring 5 and enter the sorting drum 2. After the rotation of the sorting drum 2, the coal rods are preliminarily sorted. At the same time, the partition 201 blocks the coal rods, and the salvaging arm 302 will pick up the coal rods and stir them in the sorting drum 2. The sorting drum 2 is provided with a second screening hole for sorting, and the coal rods fall into the sorting shell 1 after being sorted by the sorting drum 2.

[0031] A supporting leg 8 is installed at the lower end of the sorting shell 1, and the fixing plate 401 is fixedly connected to the supporting leg 8.

[0032] A discharge pipe 10 is installed at the lower end of the sorting shell 1 close to the driving device 4 .

[0033] A discharge door 9 is installed at one end of the sorting drum 2 close to the driving device 4. The discharge door 9 can be opened and closed by a positioning pin or a lock.

[0034] The sorting roller 2 and the sorting stirring device 3 are arranged at an angle.

[0035] Embodiment 1:

[0036] The coal rods are put into the inlet of the sorting shell 1, and then enter the sorting drum 2. The driving device 4 drives the sorting drum 2 and the sorting stirring device 3 to work to sort out the coal rods of different sizes. The output end of the driving motor 402 and the outer side of the rotating shaft 301 are equipped with a second pulley 405. The second pulley 405 and the first pulley 404 are connected by a belt. The outer side of the sorting drum 2 is equipped with teeth and meshed with the driving gear 403. One end of the sorting shell 1 is provided with a through hole for matching the rotation of the sorting drum 2. The driving motor 402 of the driving device 4 works, and drives the driving gear 403 to rotate through the belt, and then drives the meshed connected sorting drum 2 to rotate under the limit of the sorting shell 1 and the fixed ring 5, and also drives the rotating shaft 301 to rotate to sort the coal rods.

[0037] Embodiment 2

[0038] like Figure 1 and Figure 2As shown, the driving device 4 includes a fixed plate 401 and a driving motor 402 on the fixed plate 401, a connecting shaft 406 is installed on the bearing of the sorting shell 1, a driving gear 403 and a first pulley 404 are installed on the outer side of the connecting shaft 406, a second pulley 405 is installed on the output end of the driving motor 402 and the outer side of the rotating shaft 301, the second pulley 405 and the first pulley 404 are connected by a belt, teeth are installed on the outer side of the sorting drum 2 and are meshed with the driving gear 403, a through hole is provided at one end of the sorting shell 1 to cooperate with the rotation of the sorting drum 2, the driving motor 402 of the driving device 4 works, the driving gear 403 is driven to rotate through the belt, and then the meshed connected sorting drum 2 is driven to rotate under the limit of the sorting shell 1 and the fixed ring 5, and the rotating shaft 301 is also driven to rotate to sort the coal rods and stones, and the specific rotation speeds of the rotating shaft 301 and the sorting drum 2 are inconsistent.

[0039] 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 screening device for cave coal mines, characterized in that: The invention comprises a sorting shell (1), wherein a rotatable sorting roller (2) is installed in the sorting shell (1), a rotatable sorting stirring device (3) is installed in the sorting roller (2), and a driving device (4) for driving the sorting roller (2) and the sorting stirring device (3) is installed on one side of the sorting shell (1); The sorting and stirring device (3) comprises a rotating shaft (301) that can rotate in the sorting drum (2); the rotating shaft (301) is bearing-connected to the sorting drum (2) and extends to the outside of the sorting drum (2); a plurality of groups of salvaging arms (302) are installed on the outside of the rotating shaft (301); and first sorting holes (303) are evenly arranged on the surface of the salvaging arms (302); A partition plate (201) is installed on the inner wall of the sorting roller (2), a fixing ring (5) is installed in the sorting shell (1), a connecting plate (6) is installed in the fixing ring (5), and one end of the rotating shaft (301) is connected to the connecting plate (6) by a bearing, and a limiting groove (7) for cooperating with the rotation of the sorting roller (2) is provided at one end of the fixing ring (5) close to the sorting roller (2).

2. A screening device for cave coal mines according to claim 1, characterized in that: The inner wall of the fixing ring (5) is an inwardly inclined structure.

3. A screening device for cave coal mines according to claim 1, characterized in that: The driving device (4) comprises a fixed plate (401) and a driving motor (402) on the fixed plate (401); a connecting shaft (406) is installed on a bearing on the sorting shell (1); a driving gear (403) and a first pulley (404) are installed on the outer side of the connecting shaft (406); a second pulley (405) is installed on the output end of the driving motor (402) and the outer side of the rotating shaft (301); the second pulley (405) and the first pulley (404) are connected by a belt; and teeth are installed on the outer side of the sorting drum (2) and are meshed with the driving gear (403).

4. A screening device for cave coal mines according to claim 3, characterized in that: A supporting leg (8) is installed at the lower end of the sorting shell (1), and the fixing plate (401) is fixedly connected to the supporting leg (8).

5. The screening device for cave coal mines according to claim 1, characterized in that: A discharge pipe (10) is installed at the lower end of one side of the sorting shell (1) close to the driving device (4).

6. A screening device for cave coal mines according to claim 1, characterized in that: A discharge door (9) is installed at one end of the sorting roller (2) close to the driving device (4).

7. A screening device for cave coal mines according to claim 1, characterized in that: The sorting roller (2) and the sorting stirring device (3) are arranged at an angle.

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