Coal sorting device for open pit coal mining

Abstract

The utility model discloses a coal sorting device for open pit coal mining, which relates to the technical field of coal sorting and comprises a bearing frame, a plurality of supports are fixedly mounted at the top of the bearing frame, a mounting frame is fixedly mounted and connected to the tops of the supports, and a guide plate is fixedly mounted on the inner wall of the mounting frame. A plurality of first screening holes, second screening holes and third screening holes are formed in the surface of the material guiding plate, a fixing plate is fixedly installed at one end of the bearing frame, and a moving assembly is arranged at the top of the fixing plate and comprises a screw rod; the screw rod rotates to drive the bearing plate and the multiple collecting boxes to vertically move, so that the three collecting boxes gradually get close to the material guide plate, then the distance between coal and the collecting boxes when the coal moves on the material guide plate is reduced, the impact force of the coal on the collecting boxes is reduced, noise caused when the coal is sorted and collected is reduced, and the applicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal sorting technology, specifically to a coal sorting device for open-pit coal mining. Background Technology

[0002] Coal is a solid combustible mineral formed gradually from ancient plants buried underground and undergoing complex biochemical and physicochemical changes. Since the beginning of the 21st century, although the value of coal has not been as high as before, it will still be one of the essential energy sources for human production and life for a long time to come. In the process of coal mining, sorting devices are needed to classify the specifications of coal.

[0003] Existing coal sorting devices for open-pit coal mining can only sort coals that are significantly different in size, resulting in insufficient sorting accuracy. Consequently, multiple sorting operations are required to complete the sorting process, leading to low work efficiency and insignificant sorting results. Furthermore, the large size of the coal and the long distance it falls to the ground during sorting generate unusually loud noise, affecting the working environment and severely limiting the device's capabilities. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a coal sorting device for open-pit coal mining to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] A coal sorting device for open-pit coal mining includes a support frame. Several supports are fixedly mounted on the top of the support frame. An installation frame is fixedly connected to the top of the supports. A guide plate is fixedly mounted on the inner wall of the installation frame. Several screening holes (I, II, and III) are formed on the surface of the guide plate. A fixing plate is fixedly mounted on one end of the support frame. A moving component is provided on the top of the fixing plate. The moving component includes a screw. The outer wall of the screw is threaded with the support plate. Three collection boxes are placed on the top of the support plate. The screw can drive the three collection boxes to move vertically through the support plate. Several limiting plates of different lengths are fixedly mounted on the bottom of the installation frame.

[0006] Preferably, both sides of the three collection boxes abut against two adjacent limiting plates, and the two adjacent limiting plates can limit the movement of one of the collection boxes.

[0007] Preferably, the moving assembly further includes a motor, a plug rod, and two guide rods. The motor is fixedly mounted on the top of the fixed plate. One end of the screw is fixedly connected to the fixed output end of the motor, and the other end is rotatably connected to the plug rod. The other end of the plug rod is fixedly connected to the bottom of the mounting frame. The screw is rotatably connected to the support plate. The two ends of the two guide rods are respectively fixedly connected to the support frame and the mounting frame. The support plate is slidably sleeved on the two guide rods.

[0008] Preferably, handles are fixedly installed at both ends of the collection box, and a plurality of slots are provided at one end of the support plate, with the handles slidingly engaging with the slots.

[0009] Preferably, both ends of the mounting frame are fixedly connected to external rods, the outer walls of the two external rods are fixedly sleeved with fasteners, one end of the two fasteners is fixedly installed with a fixing rod, and a hopper is fixedly installed between the two fixing rods.

[0010] Preferably, an external plate is fixedly installed at one end of the support frame, a cylinder is fixedly installed at one end of the external plate, and a pusher plate is fixedly connected to the output end of the cylinder.

[0011] Preferably, a plurality of the screening holes one, screening holes two and screening holes three are sequentially formed on the surface of the guide plate, and their sizes increase sequentially.

[0012] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0013] 1. This utility model provides a coal sorting device for open-pit coal mining. Through the cooperation of a motor, screw, guide rod, bearing plate, limiting plate, mounting frame, guide plate and collection box, the output end of the motor rotates to drive the screw to rotate. The rotation of the screw drives the bearing plate and several collection boxes to move vertically, so that the three collection boxes gradually move closer to the guide plate, thereby reducing the distance between the coal and the collection box when the coal moves on the guide plate, reducing the impact force of the coal on the collection box, reducing the noise caused by coal sorting and collection, and improving applicability.

[0014] 2. This utility model provides a coal sorting device for open-pit coal mining. Through the cooperation of a guide plate, screening holes one, screening holes two, screening holes three, several collection boxes, a mounting frame, and several limiting plates, coal is screened by screening holes one, screening holes two, and screening holes three when it flows on the guide plate. In turn, coal of different particle sizes is screened and collected by the collection boxes in sequence, which effectively improves the sorting accuracy and sorting effect of coal and further enhances its applicability. Attached Figure Description

[0015] Figure 1This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional schematic diagram of a partial structure in this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the guide plate in this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of a partial structure in this utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of the collection box in the utility model.

[0020] In the picture:

[0021] 1. Support frame; 100. Fixing plate; 2. Bracket; 3. Mounting frame; 300. Limiting plate; 4. Guide plate; 401. Screening hole one; 402. Screening hole two; 403. Screening hole three; 500. External plate; 501. Cylinder; 502. Pushing plate; 6. Discharge hopper; 601. Fixing rod; 602. External rod; 603. Fixing component; 7. Moving assembly; 701. Motor; 702. Screw; 703. Insert rod; 704. Guide rod; 8. Support plate; 800. Slot; 9. Collection box; 900. Handle. Detailed Implementation

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods:

[0023] like Figure 1-5As shown, this utility model provides a coal sorting device for open-pit coal mining, including a support frame 1. Several supports 2 are fixedly installed on the top of the support frame 1. A mounting frame 3 is fixedly connected to the top of each of the supports 2. A guide plate 4 is fixedly installed on the inner wall of the mounting frame 3. Several screening holes 401, 402, and 403 are provided on the surface of the guide plate 4. A fixing plate 100 is fixedly installed at one end of the support frame 1. A moving component 7 is provided on the top of the fixing plate 100. The moving component 7 includes a screw 702. The outer wall of the screw 702... A support plate 8 is threaded onto the support plate 8, and three collection boxes 9 are placed on the top of the support plate 8. The screw 702 can drive the three collection boxes 9 to move vertically through the support plate 8. Several limiting plates 300 of different lengths are fixedly installed at the bottom of the mounting frame 3. Several screening holes 1 401, screening holes 2 402 and screening holes 3 403 are sequentially opened on the surface of the guide plate 4, and their sizes increase sequentially. The two sides of the three collection boxes 9 abut against two adjacent limiting plates 300, and the two adjacent limiting plates 300 can limit one of the collection boxes 9.

[0024] The staff first places three collection boxes 9 on the support plate 8, then abuts the two ends of the collection boxes 9 against two of the limiting plates 300, and then rotates the screw 702. After the screw 702 rotates, it engages with the threaded connection of the support plate 8, causing the support plate 8 to move vertically upward. After the support plate 8 moves, it drives the three collection boxes 9 to move, so that the three collection boxes 9 gradually move closer to the guide plate 4, thereby reducing the distance between the coal and the collection boxes 9 when the coal moves on the guide plate 4, reducing the impact force of the coal on the collection boxes 9, reducing the noise caused by coal sorting and collection, and improving applicability. At the same time, the vertical height of the support plate 8 and the three collection boxes 9 is gradually reduced according to the amount of coal collected, until the collection boxes 9 collect a certain amount of coal.

[0025] Then the coal is poured onto the guide plate 4, where it flows. As it flows, coal particles of different sizes are screened through screening holes 401, 402, and 403. The screened coal falls into three collection boxes 9. Through multiple screenings, the coal screening and sorting effect is effectively improved.

[0026] like Figure 2As shown, in one embodiment, the moving component 7 further includes a motor 701, a plug rod 703, and two guide rods 704. The motor 701 is fixedly mounted on the top of the fixed plate 100. One end of the screw 702 is fixedly connected to the fixed output end of the motor 701, and the other end is rotatably connected to the plug rod 703. The other end of the plug rod 703 is fixedly connected to the bottom of the mounting frame 3. The screw 702 is rotatably connected to the support plate 8. The two ends of the two guide rods 704 are fixedly connected to the support frame 1 and the mounting frame 3, respectively. The support plate 8 is slidably sleeved on the two guide rods 704.

[0027] Motor 701 is a reversible motor, capable of rotating in both directions, thereby adjusting the rotation direction of screw 702 and the moving direction of bearing plate 8, facilitating the movement of collection box 9 and making it highly adaptable.

[0028] like Figure 5 As shown, in one embodiment, handles 900 are fixedly installed at both ends of the collection box 9, and a plurality of slots 800 are opened at one end of the support plate 8, with the handles 900 slidingly engaging with the slots 800.

[0029] By inserting the handle 900 on one side of the collection box 9 into the slot 800, the limiting effect on the collection box 9 can be further improved, thereby enhancing the material collection stability of the collection box 9.

[0030] like Figure 4 As shown, in one embodiment, both ends of the mounting frame 3 are fixedly connected to external rods 602, and the outer walls of the two external rods 602 are fixedly sleeved with fasteners 603. One end of the two fasteners 603 is fixedly installed with a fixing rod 601, and a feeding hopper 6 is fixedly installed between the two fixing rods 601. One end of the bearing frame 1 is fixedly installed with an external plate 500, and one end of the external plate 500 is fixedly installed with a cylinder 501. The output end of the cylinder 501 is fixedly connected to a pusher plate 502.

[0031] When the coal is being dumped, the operator can activate cylinder 501, which will push the pusher plate 502 to slide on the surface of the guide plate 4, thereby pushing the coal, reducing the probability of coal blockage and improving applicability.

[0032] The working principle of this coal sorting device used in open-pit coal mining will be explained in detail below:

[0033] The staff first places three collection boxes 9 on the support plate 8, then abuts the two ends of the collection boxes 9 against two of the limiting plates 300. Then the motor 701 is started. After the output end of the motor 701 rotates, it drives the screw 702 to rotate. After the screw 702 rotates, it engages with the support plate 8 by thread. Under the action of the two guide rods 704, the support plate 8 moves vertically upward. After the support plate 8 moves, it drives the three collection boxes 9 to move, so that the three collection boxes 9 gradually move closer to the guide plate 4. This reduces the distance between the coal and the collection boxes 9 when the coal moves on the guide plate 4, reduces the impact force of the coal on the collection boxes 9, reduces the noise caused by coal sorting and collection, and improves applicability.

[0034] Then, the coal is poured into the feed hopper 6, so that the coal falls from the feed hopper 6 onto the guide plate 4. At this time, the coal flows on the guide plate 4, and during the flow, coal particles of different sizes are screened through screening holes 1 401, screening holes 2 402 and screening holes 3 403 respectively. The screened coal falls into three collection boxes 9 respectively. Through multiple screenings, the screening and sorting effect of coal is effectively improved.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A coal sorting device for open-pit coal mining, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly equipped with several brackets (2), and the top of the brackets (2) is fixedly connected with an installation frame (3). The inner wall of the installation frame (3) is fixedly equipped with a guide plate (4). The surface of the guide plate (4) is provided with several screening holes 1 (401), 2 (402) and 3 (403). One end of the support frame (1) is fixedly equipped with a fixing plate (100). The top of the fixing plate (100) is provided with a moving component (7). The moving component (7) includes a screw (702). The outer wall of the screw (702) is threaded with a support plate (8). The top of the support plate (8) is placed with three collection boxes (9). The screw (702) can drive the three collection boxes (9) to move vertically through the support plate (8). The bottom of the installation frame (3) is fixedly equipped with several limiting plates (300) of different lengths.

2. A coal sorting device for open-pit coal mining according to claim 1, characterized in that: Both sides of the three collection boxes (9) abut against the two adjacent limiting plates (300), and the two adjacent limiting plates (300) can limit one of the collection boxes (9).

3. A coal sorting device for open-pit coal mining according to claim 1, characterized in that: The moving component (7) also includes a motor (701), a plug rod (703), and two guide rods (704). The motor (701) is fixedly installed on the top of the fixed plate (100). One end of the screw (702) is fixedly connected to the fixed output end of the motor (701), and the other end is rotatably connected to the plug rod (703). The other end of the plug rod (703) is fixedly connected to the bottom of the mounting frame (3). The screw (702) is rotatably connected to the support plate (8). The two ends of the two guide rods (704) are fixedly connected to the support frame (1) and the mounting frame (3) respectively. The support plate (8) is slidably sleeved on the two guide rods (704).

4. A coal sorting device for open-pit coal mining according to claim 1, characterized in that: The collection box (9) is fixedly equipped with handles (900) at both ends, and a number of slots (800) are opened at one end of the support plate (8), and the handles (900) slide in cooperation with the slots (800).

5. A coal sorting device for open-pit coal mining according to claim 1, characterized in that: Both ends of the mounting bracket (3) are fixedly connected to external rods (602), and the outer walls of the two external rods (602) are fixedly sleeved with fasteners (603). One end of the two fasteners (603) is fixedly installed with a fixing rod (601), and a feeding hopper (6) is fixedly installed between the two fixing rods (601).

6. A coal sorting device for open-pit coal mining according to claim 1, characterized in that: An external plate (500) is fixedly installed at one end of the support frame (1), and a cylinder (501) is fixedly installed at one end of the external plate (500). A pusher plate (502) is fixedly connected to the output end of the cylinder (501).

7. A coal sorting device for open-pit coal mining according to claim 1, characterized in that: Several screening holes one (401), screening holes two (402) and screening holes three (403) are sequentially opened on the surface of the guide plate (4), and their sizes increase sequentially.

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