Coal mine screening apparatus

Abstract

The utility model provides a kind of coal mine screening equipment, comprising: screening machine, hopper, drive assembly and two groups of adjusting mechanism, wherein, hopper is set on screening machine;Drive assembly is set at the bottom of screening machine;Two groups of adjusting mechanism are symmetrically set at the bottom of screening machine, wherein, each group of adjusting mechanism includes two connecting frames, power source, protective shell, bottom plate and support leg, wherein, one connecting frame is pivotally connected with corresponding drive assembly;The output end of power source is connected with the bottom wall of connecting frame;Protective shell is installed outside power source;Bottom plate is set on the bottom wall of power source;One end of support leg is connected with bottom plate, and the other end of support leg is pivotally connected with corresponding drive assembly.The coal mine screening equipment of the utility model embodiment can add adjusting assembly to screening machine, so as to adjust the angle of screening machine according to conditions and requirements, ensure that coal can be fully screened, and at the same time, it will not be accumulated on screening device.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mining, and in particular to a coal screening device. Background Technology

[0002] A coal mine is an area where humans extract coal resources from coal-rich areas. After the ore is extracted from the mine, workers will carry out a series of processing steps, including conveying, crushing, and screening. During the screening process, screening machines are used to separate the crushed coal to prevent the coal from becoming too large, which would affect its quality.

[0003] During coal screening, if the screening device is perfectly parallel to the ground, the screened coal cannot move independently along the screen surface and be discharged from the equipment, resulting in the accumulation of undersized material on the screen surface. Therefore, most existing screening machines are inclined structures, using the downward sliding channel formed by the inclined screen surface to ensure that the screened coal can fall smoothly and maintain the continuity of the screening operation. However, if too much coal is fed to the screening machine at once, a large amount of coal will form an accumulation layer on the inclined screen surface. Consequently, the coal on top of the accumulation layer will lack sufficient screening time and space and will slide down the inclined screen surface quickly, skipping the screening process, resulting in incomplete coal screening. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0005] Therefore, one objective of this utility model is to provide a coal mine screening device that can add an adjustment component to the screening machine, thereby adjusting the angle of the screening machine according to the situation and needs, ensuring that the coal can be fully screened and will not accumulate on the screening device.

[0006] To achieve the above objectives, the first aspect of this utility model provides a coal mine screening device, comprising: a screening machine, a hopper, a drive assembly, and two sets of adjustment mechanisms. The hopper is mounted on the screening machine; the drive assembly is mounted at the bottom of the screening machine; the two sets of adjustment mechanisms are symmetrically arranged at the bottom of the screening machine. Each set of adjustment mechanisms includes two connecting frames, a power source, a protective shell, a base plate, and a support leg. One connecting frame is pivotally connected to the corresponding drive assembly; the output end of the power source is connected to the bottom wall of the connecting frame; the protective shell is installed outside the power source; the base plate is mounted on the bottom wall of the power source; one end of the support leg is connected to the base plate, and the other end of the support leg is pivotally connected to the corresponding drive assembly.

[0007] In addition, the coal mine screening equipment proposed above according to this utility model may also have the following additional technical features: Specifically, the screening machine includes a chamber, multiple sets of first guide rails, multiple screen plates, and multiple guide plates. The multiple sets of first guide rails are respectively arranged in the chamber; the multiple screen plates are slidably connected to their respective first guide rails; and the multiple guide plates are respectively connected to their respective screen plates.

[0008] Specifically, the drive assembly includes a drive component, four connecting pillars, four first connecting plates, four sets of limiting pillars, four sets of springs, and four second connecting plates. The drive component is mounted on the bottom wall of the chamber; the four connecting pillars are mounted on the outer wall of the chamber; the four first connecting plates are mounted on the bottom of the corresponding connecting pillars; the four sets of limiting pillars are mounted on the bottom wall of the corresponding first connecting plates, and the four sets of second connecting plates are connected to the other end of the corresponding limiting pillars; the four sets of springs are sleeved on the outside of the corresponding limiting pillars, and the two ends of the four sets of springs are connected to the bottom wall of the corresponding connecting pillar and the upper wall of the corresponding second connecting plate, respectively.

[0009] Specifically, the inner wall of the compartment is symmetrically provided with second guide rails, and baffles are slidably connected between the two second guide rails.

[0010] Compared with existing technologies, this utility model has the following advantages: An adjustment component can be added to the screening machine to adjust the slope of the screening device to a gentler slope during the screening process. If coal accumulates on the screening machine during screening, the slope can be adjusted to a larger angle, allowing the accumulated coal to fall off the screening machine. By adjusting the angle of the screening machine according to actual conditions and needs, it ensures that the coal can be fully screened without accumulating on the screening device.

[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of a coal mine screening device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the drive assembly structure of a coal mine screening equipment according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the adjustment mechanism of a coal mine screening equipment according to an embodiment of the present invention.

[0013] Reference numerals in the attached drawings: 1. Screening machine; 11. Bin body; 12. First guide rail; 13. Screen plate; 14. Guide plate; 2. Hopper; 3. Drive assembly; 31. Drive component; 32. Connecting column; 33. First connecting plate; 34. Limiting column; 35. Spring; 36. Second connecting plate; 4. Adjusting mechanism; 41. Connecting frame; 42. Power source; 43. Protective shell; 44. Base plate; 45. Support leg; 51. Second guide rail; 52. Baffle. Detailed Implementation

[0014] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0015] The coal mine screening equipment of this utility model is described below with reference to the accompanying drawings.

[0016] like Figures 1-3 As shown, the coal mine screening equipment of this utility model embodiment includes: a screening machine 1, a hopper 2, a drive assembly 3, and two sets of adjustment mechanisms 4.

[0017] The hopper 2 is installed on the screening machine 1, the drive assembly 3 is installed at the bottom of the screening machine 1, and two sets of adjustment mechanisms 4 are symmetrically arranged at the bottom of the screening machine 1. Each set of adjustment mechanisms 4 includes two connecting frames 41, a power source 42, a protective shell 43, a bottom plate 44, and a support leg 45.

[0018] One of the connecting frames 41 is pivotally connected to the corresponding drive component 3, the output end of the power source 42 is connected to the bottom wall of the connecting frame 41, the protective shell 43 is installed outside the power source 42, the base plate 44 is set on the bottom wall of the power source 42, one end of the support leg 45 is connected to the base plate 44, and the other end of the support leg 45 is pivotally connected to the corresponding drive component 3.

[0019] It should be noted that both power sources 42 described in this embodiment are cylinders.

[0020] Specifically, when coal needs to be screened, the workers can transport the coal through the hopper 2 into the screening machine 1, and then turn on the drive component 3 through the external control device. At this time, the drive component 3 will drive the screening machine 1 to vibrate, thereby screening the coal inside.

[0021] After screening is completed, the staff can turn on the two power sources 42 through the control device. At this time, the two power sources 42 will push one end of the screening machine 1 upward through the four connecting frames 41, so that the screening machine 1 is in an inclined state, ensuring that the coal on the screening machine 1 will not accumulate.

[0022] It should be noted that the two power sources 42 and the two support legs 45 described in this embodiment are pivotally connected to the second connecting plate 36 through the connecting frame 41, so the screening machine 1 will not be affected when adjusting the angle.

[0023] In one embodiment of this utility model, such as Figure 2 As shown, the screening machine 1 includes a bin body 11, multiple sets of first guide rails 12, multiple screen plates 13 and multiple guide plates 14.

[0024] Among them, multiple sets of first guide rails 12 are respectively installed in the chamber body 11, multiple screen plates 13 are slidably connected to the corresponding first guide rails 12, and multiple guide plates 14 are respectively connected to the corresponding screen plates 13.

[0025] It should be noted that the sieve plate 13 and the guide plate 14 described in this embodiment have the same structure on both the upper and lower sides. Therefore, during use, the flow direction can be adjusted by adjusting the front and back of the guide plate 14 according to the installation position.

[0026] Specifically, when screening coal, the workers can select a suitable screen plate 13 and push it along the first guide rail 12 at a suitable position according to the screening grade and particle size. At this time, the screen plate 13 will move along the inner wall of the first guide rail 12, thereby installing it into the bin 11. Then, the workers can rotate the bolts that pass through the screen plate 13 and the first guide rail 12 to fix it into the bin 11.

[0027] At this time, the coal is placed into the bin 11. The staff can turn on the drive component 3 through the control device to make the bin 11 and the internal screen plate 13 shake, thereby shaking the coal. At this time, the coal will gradually pass through the screen plate 13 according to different sizes, thereby achieving the screening effect. The screened coal will flow out through the guide plate 14.

[0028] In one embodiment of this utility model, such as Figure 2 As shown, the drive assembly 3 includes a drive component 31, four connecting posts 32, four first connecting plates 33, four sets of limiting posts 34, four sets of springs 35, and four second connecting plates 36.

[0029] The drive unit 31 is installed on the bottom wall of the chamber 11, four connecting columns 32 are installed on the outer wall of the chamber 11, four first connecting plates 33 are installed at the bottom of the corresponding connecting columns 32, four sets of limiting columns 34 are installed on the bottom wall of the corresponding first connecting plates 33, four sets of second connecting plates 36 are connected to the other end of the corresponding limiting columns 34, and four sets of springs 35 are sleeved on the outside of the corresponding limiting columns 34, with the two ends of the four sets of springs 35 connected to the bottom wall of the corresponding connecting column 32 and the upper wall of the corresponding second connecting plate 36.

[0030] It should be noted that the driving component 31 described in this embodiment is a vibration motor.

[0031] Specifically, when it is necessary to vibrate the bin 11, the staff can activate the drive component 31 through the external control device. At this time, the drive component 31 will cause the bin 11 to shake. The vibration generated by the bin 11 will be transmitted to the spring 35 through the connecting column 32 and the first connecting plate 33. At this time, the spring 35 will store force and compress along the direction limited by the limiting column 34, and then rebound, thereby increasing the vibration and making the coal to be screened fully screened.

[0032] In one embodiment of this utility model, such as Figure 2 As shown, the inner wall of the compartment 11 is symmetrically provided with second guide rails 51, and baffles 52 are slidably connected within the two second guide rails 51.

[0033] Understandably, by using the baffle 52 that slides within the second guide rail 51, the flow rate can be limited to a certain extent during the coal flow process, thereby ensuring that the coal passes through the screen plate 13 fully and thus achieving full screening.

[0034] In summary, an adjustment component can be added to the screening machine to adjust the slope of the screening device to a gentler gradient during the screening process. If coal accumulates on the screening machine during screening, the slope can be increased to allow the accumulated coal to fall off the machine. By adjusting the angle of the screening machine according to actual conditions and needs, it is possible to ensure that the coal is fully screened without accumulating on the screening device.

[0035] In the description of this specification, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A coal mine screening device, characterized in that, include: The system includes a screening machine, a hopper, a drive assembly, and two sets of adjustment mechanisms. The hopper is mounted on the screening machine; The drive assembly is located at the bottom of the screening machine; The two sets of adjustment mechanisms are symmetrically arranged at the bottom of the screening machine, wherein, Each set of adjustment mechanisms includes two connecting frames, a power source, a protective shell, a base plate, and support legs, wherein... One of the connecting frames is pivotally connected to the corresponding drive assembly; The output end of the power source is connected to the bottom wall of the connecting frame; The protective shell is installed on the outside of the power source; The base plate is mounted on the bottom wall of the power source; One end of the support leg is connected to the base plate, and the other end of the support leg is pivotally connected to the corresponding drive assembly.

2. The coal mine screening equipment according to claim 1, characterized in that, The screening machine includes a chamber, multiple sets of first guide rails, multiple screen plates, and multiple guide plates, wherein... Multiple sets of the first guide rails are respectively installed inside the chamber; The plurality of sieve plates are respectively slidably connected to the corresponding first guide rail; Each of the aforementioned guide plates is connected to a corresponding sieve plate.

3. The coal mine screening equipment according to claim 2, characterized in that, The drive assembly includes a drive component, four connecting posts, four first connecting plates, four sets of limiting posts, four sets of springs, and four second connecting plates. The drive component is disposed on the bottom wall of the chamber; The four connecting columns are respectively installed on the outer wall of the silo body; The four first connecting plates are respectively disposed at the bottom of the corresponding connecting posts; The four sets of limiting posts are respectively set on the bottom wall of the corresponding first connecting plate, and the four sets of second connecting plates are respectively connected to the other end of the corresponding limiting posts; The four sets of springs are respectively sleeved on the outside of the corresponding limiting post, and the two ends of the four sets of springs are respectively connected to the bottom wall of the corresponding connecting post and the upper wall of the corresponding second connecting plate.

4. The coal mine screening equipment according to claim 2, characterized in that, The inner wall of the compartment is symmetrically provided with second guide rails, and baffles are slidably connected between the two second guide rails.

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