Raw coal crushing device

Abstract

The utility model relates to the technical field of raw coal crushing devices, and particularly discloses a raw coal crushing device. The crushing part is arranged in the crushing box and used for crushing raw coal, the vibrating part is arranged under the crushing part and used for screening the crushed raw coal, the driving assembly is arranged on the outer side of the crushing box and used for driving the crushing part and the vibrating part to operate, the top face of the crushing box communicates with a feeding hopper, and a first discharging opening is formed in the side wall of the crushing box; a second discharging port is formed in the bottom of the crushing box, a material basin used for collecting raw coal is arranged at the position, below the first discharging port, of the outer side of the crushing box, a lifting piece used for driving the material basin to ascend and descend is arranged on the bottom face of the material basin, and a first hydraulic cylinder used for driving the material basin to turn over and pouring the raw coal in the material basin into the feeding hopper is installed on the side face of the material basin. The problems that the crushing time of a traditional raw coal crushing device is prolonged, the working intensity of the crushing device is increased, and the crushing efficiency is reduced are solved.

Description

Technical Field

[0001] The present application relates to the technical field of raw coal crushing devices, and specifically discloses a raw coal crushing device. Background Art

[0002] Raw coal refers to the product produced by coal mines without washing, screening and processing, but only after manual picking of gangue and debris, including natural coke and inferior coal, excluding low calorific value coal. Raw coal can be divided into three categories according to its origin, namely humic coal, saprophytic coal and humic saprophytic coal; according to its carbonization degree, it can be divided into peat, lignite, bituminous coal and anthracite. Raw coal processing includes several steps such as crushing, screening and magnetic separation. When the coal blocks are large and do not meet the requirements of boiler combustion, the raw coal must first be crushed to facilitate subsequent processing steps. Therefore, the research and development of a raw coal crushing device is particularly important.

[0003] In the prior art, the utility model patent with patent publication number CN 218590785 U discloses a crusher, including a support seat, a material box and a secondary crushing box, the top of the support seat is equipped with a material box, the interior of the material box is provided with a screening structure, the screening structure includes a mesh screen, a vibration motor, a material collection box, a plug-in slot and a plug-in block, the mesh screen is installed inside the material box, the bottom of the material box is equipped with a material collection box, and both sides of the mesh screen and the material collection box are provided with plug-in slots. When in use, the raw coal first enters the primary crushing box for primary crushing, and then the raw coal enters the secondary crushing box for secondary crushing, thereby achieving multiple crushing of the raw coal and improving the crushing effect. However, in actual use, the raw coal after the initial crushing includes small-size raw coal, equal-size raw coal and large-size raw coal. The small-size raw coal and equal-size raw coal account for a large proportion of the raw coal after the initial crushing, and there is no need to perform secondary crushing. Only the large-size raw coal needs to be crushed for the second time. This crusher performs secondary crushing on the raw coal after the initial crushing, which prolongs the crushing time, increases the working intensity of the crusher, and reduces the crushing efficiency.

[0004] Therefore, in view of this, the inventor provides a raw coal crushing device to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to solve the problem that in traditional raw coal crushing devices, after the raw coal is initially crushed, in order to improve the crushing effect, the raw coal after the initial crushing is crushed for the second time, which leads to prolonged crushing time, increased working intensity of the crushing device and reduced crushing efficiency.

[0006] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a raw coal crushing device, including a crushing box, crushing parts arranged in the crushing box for crushing raw coal, vibrating parts arranged directly below the crushing parts for screening the crushed raw coal, and a driving assembly arranged on the outside of the crushing box for driving the crushing parts and the vibrating parts to operate. The top surface of the crushing box is connected to a feed hopper, a first discharge port is opened on the side wall of the crushing box, and a second discharge port is opened at the bottom of the crushing box. A material basin for collecting raw coal is provided on the outside of the crushing box below the first discharge port, a lifting part for driving the material basin to rise and fall is provided on the bottom surface of the material basin, and a first hydraulic cylinder for driving the material basin to flip and pour the raw coal in the material basin into the feed hopper is installed on the side of the material basin.

[0007] The principles and effects of this basic solution are:

[0008] 1. The utility model provides a crushing part and a vibrating part, so that the raw coal can be firstly crushed by the crushing part, and the crushed raw coal can be vibrated and screened by the vibrating part, so that the raw coal with large particle size can be screened out and discharged into the material basin through the first discharge port, while the raw coal with small particle size and the raw coal with equal particle size are discharged from the second discharge port, thereby realizing the separation of the raw coal with large particle size from the raw coal with small particle size and the raw coal with equal particle size in the crushed raw coal.

[0009] 2. The utility model can make the material basin move vertically by setting a lifting part. At the same time, the material basin is driven to flip under the action of the first hydraulic cylinder, so that the large-size raw coal in the material basin can be poured into the feed hopper, and the large-size raw coal is crushed again by the crushing part, so that the large-size raw coal is crushed for the second time, thereby improving the crushing effect.

[0010] Compared with the prior art, the utility model can perform primary crushing of raw coal by setting a crushing part; by setting a vibrating part, the raw coal after primary crushing can be vibrated and screened, so that the raw coal with large particle size can be screened and discharged into the material basin through the first discharge port; by setting a lifting part, the material basin can be driven to move upward; by setting a first hydraulic cylinder, the raw coal with large particle size in the material basin can be poured into the feed hopper, so that the raw coal with large particle size can be crushed again by the crushing part. The utility model screens out the raw coal with large particle size for secondary crushing separately, while the raw coal with small particle size and raw coal with equal particle size have met the crushing requirements and do not need to be crushed again. While improving the crushing effect, it reduces the amount of raw coal that needs secondary crushing, reduces the working intensity of the crushing device, and improves the crushing efficiency.

[0011] Furthermore, the lifting member includes a platform plate horizontally and symmetrically arranged on the bottom surface of the material basin, each of the platform plates is horizontally provided with a through slide groove, each of the slide grooves is slidably connected with a slide bar, and the two parallel sides of each platform plate are symmetrically provided with a centrally hinged scissor rod, one side of each scissor rod is respectively fixedly connected to the two ends of each slide bar, and the other side of each scissor rod is respectively fixedly connected to the side wall of each platform plate, and a second hydraulic cylinder for driving each slide bar to move horizontally is arranged in the platform plate away from the material basin, and the bottom surface of the material basin close to the crushing box is hinged to the top surface of the platform plate close to the material basin, and the first hydraulic cylinder is arranged on the side of the material basin away from the crushing box. The second hydraulic cylinder drives the slide bar to move horizontally while operating, and during the horizontal movement of the slide bar, the platform plate close to the material basin can be moved up and down through the action of each scissor rod, thereby driving the material basin to rise and fall.

[0012] Furthermore, the crushing element includes two rollers that are arranged directly below the feed hopper and driven by a driving assembly to rotate relative to each other, and each of the rollers is rotationally connected to the crushing box. When the two rollers rotate in opposite directions, the raw coal can be crushed by squeezing the two rollers. This structure is simple and has a good and stable crushing effect.

[0013] Furthermore, each of the rollers is provided with a squeeze disk enclosed at the circumference of each roller, and each of the squeeze disks is interlocked and presents a whirlwind shape. The crushing effect of the roller can be improved by providing the squeeze disk.

[0014] Further, a first screen plate inclined toward the first discharge port is provided directly below the two rollers, the vibrating member includes a spring vertically fixed to the bottom surface of the first screen plate and a connecting rod rotatably connected to the side surface of the first screen plate, the free end of the spring is fixed to the crushing box, the free end of the connecting rod passes through the crushing box and is installed with an eccentric block, the free end of the connecting rod is transmission-connected to the driving assembly, the first screen plate top surface peripheral end is surrounded by a first baffle plate, the first baffle plate is provided with a first slot connected to the first discharge port on the side close to the first discharge port, and the second discharge port is provided directly below the first screen plate. The driving assembly drives the connecting rod to rotate and drives the eccentric block to rotate at the same time, and the eccentric block can vibrate the connecting rod during the rotation process, thereby vibrating the first screen plate, and the large-size raw coal can stay on the first screen plate during the vibration process, and be discharged from the first discharge port along the first screen plate, and the small-size raw coal and the equal-size raw coal can fall into the second discharge port through the first screen plate for discharge, thereby realizing the screening of the raw coal after the initial crushing.

[0015] Furthermore, a second sieve plate is provided directly below the first sieve plate and is inclined toward the side away from the first discharge port. The sieve holes of the second sieve plate are smaller than those of the first sieve plate. A vibrating member is also provided on the second sieve plate. A second baffle plate is surrounded by the peripheral end of the top surface of the second sieve plate. A second notch is provided on the side of the second baffle plate away from the first discharge port. A third discharge port is provided on the side wall of the crushing box and is connected to the second discharge port and is used to discharge raw coal of equal particle size. The second discharge port is provided directly below the second sieve plate. By providing the second sieve plate, raw coal of equal particle size can be retained on the second sieve plate and discharged from the third discharge port along the second sieve plate, while raw coal of small particle size falls into the second discharge port through the second sieve plate and is discharged, thereby realizing the screening of raw coal of equal particle size and raw coal of small particle size, facilitating the separate use of raw coal of different particle sizes and improving the utilization rate of raw coal.

[0016] Furthermore, the driving assembly includes a gear box disposed on one side of the crushing box and a motor installed in the gear box, each of the rollers is coaxially connected to a rotating shaft, a universal joint is installed at the free end of each connecting rod, a rotating rod is coaxially connected at the free end of each universal joint, and the free end of each rotating rod extends into the gear box, and the output shaft of the motor is connected to each rotating shaft and each rotating rod. When the driving assembly is running, each rotating shaft and each rotating rod are driven to rotate, and each rotating shaft can rotate each roller at the same time, and each rotating rod can rotate each connecting rod through the transmission of the universal joint at the same time, thereby realizing the synchronous crushing and screening of raw coal, making the operation of the crushing device smoother, and realizing linkage at the same time, saving power source. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 1 A schematic structural diagram of a raw coal crushing device proposed in an embodiment of the present application is shown;

[0019] Figure 2 A front view of a raw coal crushing device proposed in an embodiment of the present application is shown;

[0020] Figure 3 A cross-sectional view of a platform plate of a raw coal crushing device on a side away from a material basin provided in an embodiment of the present application is shown;

[0021] Figure 4 A cross-sectional view of a crushing box of a raw coal crushing device proposed in an embodiment of the present application is shown;

[0022] Figure 5 A cross-sectional view of a gear box of a raw coal crushing device proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] The figure marks in the drawings of the specification include: crushing box 1, feed hopper 2, gear box 3, first discharge port 4, material basin 5, first hydraulic cylinder 6, scissor rod 7, platform plate 8, third discharge port 9, eccentric block 10, roller 11, first screen plate 12, second screen plate 13, slide bar 14, second hydraulic cylinder 15, motor 16, rotating shaft 17, rotating rod 18, connecting rod 19, second discharge port 20, slide 21, spring 22.

[0025] A raw coal crushing device, for example Figure 1 As shown: it includes a crushing box 1, a crushing member arranged in the crushing box 1 for crushing raw coal, a vibrating member arranged directly below the crushing member for screening the crushed raw coal, and a driving component arranged on the right side outside the crushing box 1 for driving the crushing member and the vibrating member to operate.

[0026] like Figure 1 As shown, the top surface of the crushing box 1 is connected to the feed hopper 2, and the left side wall of the crushing box 1 is provided with a first discharge port 4 for discharging raw coal of large particle size. Figure 2 As shown, a second discharge port 20 for discharging raw coal of other particle sizes is provided at the bottom of the crushing box 1. Figure 1 As shown, a material basin 5 for collecting raw coal of large particle size is provided on the outer left side of the crushing box 1 below the first discharge port 4. A lifting member for driving the material basin 5 to rise and fall is provided on the bottom of the material basin 5. The lifting member includes a platform plate 8 horizontally and symmetrically arranged on the bottom of the material basin 5. Each platform plate 8 has a horizontally opened slide groove 21 penetrating the upper and lower sides of each platform plate 8. A slide rod 14 is slidably connected in each slide groove 21. The upper and lower parallel sides of each platform plate 8 are symmetrically provided with a centrally hinged scissor rod 7. The left side of each scissor rod 7 is respectively fixedly connected to the two ends of each slide rod 14, and the right side of each scissor rod 7 is respectively fixedly connected to the side wall of each platform plate 8. Figure 3 As shown, a second hydraulic cylinder 15 is provided in the upper platform plate 8 for driving each slide bar 14 to move horizontally. Figure 1 As shown, the right end of the bottom surface of the material basin 5 is hinged to the top surface of the upper platform plate 8, and a first hydraulic cylinder 6 is installed on the left side of the top surface of the upper platform plate 8 to drive the material basin 5 to flip and pour the large-particle-size raw coal in the material basin 5 into the feed hopper 2.

[0027] like Figure 4As shown, the crushing parts include two rollers 11 that are arranged directly below the feed hopper 2 and are driven by a driving assembly and rotate relative to each other. Each roller 11 is rotatably connected to the crushing box 1. An extrusion disk is arranged on the outer side of each roller 11 and is surrounded by the circumference of each roller 11. Each extrusion disk is embedded in each other and is in a cyclone shape.

[0028] like Figure 4 As shown, a first screen plate 12 inclined toward the first discharge port 4 is provided directly below the two rollers 11, and the vibrating member includes a spring 22 vertically fixed to the bottom surface of the first screen plate 12 and a connecting rod 19 rotatably connected to the right side of the first screen plate 12, and the bottom end of the spring 22 is fixed to the crushing box 1. Figure 2 As shown, the left end of the connecting rod 19 passes through the crushing box 1 and is installed with an eccentric block 10, and the left end of the connecting rod 19 is transmission-connected to the driving assembly. Figure 4 As shown, the top surface of the first screen plate 12 is surrounded by a first baffle plate, and a first slot connected to the first discharge port 4 is opened on the left side of the first baffle plate. A second screen plate 13 inclined away from the first discharge port 4 is provided directly below the first screen plate 12. The sieve holes of the second screen plate 13 are smaller than the sieve holes of the first screen plate 12. A vibrating member is also provided on the second screen plate 13. The top surface of the second screen plate 13 is surrounded by a second baffle plate, and a second slot is opened on the right side of the second baffle plate. A third discharge port 9 connected to the second discharge port 20 and used for discharging raw coal of equal particle size is opened on the right side wall of the crushing box 1, and the second discharge port 20 is provided directly below the second screen plate 13.

[0029] like Figure 2 As shown, each roller 11 is coaxially connected to a rotating shaft 17, a universal joint is installed at the free end of each connecting rod 19, and a rotating rod 18 is coaxially connected to the free end of each universal joint. Figure 5 As shown, the driving assembly includes a gear box 3 arranged on one side of the crushing box 1 and a motor 16 installed in the gear box 3, the left ends of each rotating shaft 17 and each rotating rod 18 extend into the gear box 3, the output shaft of the motor 16 is coaxially connected with the first gear and the first driving pulley, the upper rotating shaft 17 is coaxially connected with the second gear and the first driven pulley, the first driving pulley and the first driven pulley are connected by a first belt for transmission, the lower rotating shaft 17 is coaxially connected with the third gear and the second driving pulley meshing with the second gear, the rotating rod 18 connected to the first sieve plate 12 is coaxially connected with the second driven pulley, the second driving pulley and the second driven pulley are connected by a second belt for transmission, the first gear meshes with the fourth gear, the fourth gear is coaxially connected with the rotating shaft, the rotating shaft is coaxially connected with the third driving pulley, the rotating rod 18 connected to the second sieve plate 13 is coaxially connected with the third driven pulley, and the third driving pulley and the third driven pulley are connected by a third belt for transmission.

[0030] When the utility model is used, the motor 16 is first turned on, and then the raw coal to be crushed is input into the feed hopper 2. When the motor 16 rotates, it can drive each rotating shaft 17 and each rotating rod 18 to rotate. When each rotating shaft 17 rotates, the two rollers 11 can be relatively rotated, and the raw coal can be crushed by the extrusion of the two rollers 11. When each rotating rod 18 rotates, each connecting rod 19 can be rotated through the transmission of the universal joint. When each connecting rod 19 rotates, it drives each eccentric block 10 to rotate. When each eccentric block 10 rotates, each connecting rod 19 can vibrate, thereby vibrating the first screen plate 12 and the second screen plate 13. During the vibration of the first sieve plate 12, the raw coal with large particle size can be retained on the first sieve plate 12 and discharged from the first discharge port 4 to the material basin 5 along the first sieve plate 12, and the raw coal with small particle size and raw coal with equal particle size can fall onto the second drying plate through the first sieve plate 12, and the raw coal with equal particle size can be vibrated by the second sieve plate 13 so that the raw coal with equal particle size can be retained on the second sieve plate 13 and discharged from the third discharge port 9 along the second sieve plate 13, while the raw coal with small particle size can fall into the second discharge port 20 through the second sieve plate 13 and be discharged.

[0031] When the amount of large-sized raw coal collected in the material basin 5 reaches a certain amount, the switch of the second hydraulic cylinder 15 is turned on, and the second hydraulic cylinder 15 can drive the slide bar 14 to move horizontally, so that the upper platform plate 8 moves upward, which can drive the material basin 5 to move upward. When the material basin 5 rises above the feed hopper 2, the switch of the first hydraulic cylinder 6 is turned on, and the first hydraulic cylinder 6 can drive the material basin 5 to flip, and pour the large-sized raw coal in the material basin 5 into the feed hopper 2, so that the large-sized raw coal can be crushed again through the crushing element.

[0032] The utility model can perform primary crushing of raw coal by setting a crushing part; by setting a vibrating part, the raw coal after primary crushing can be vibrated and screened, so that the raw coal with large particle size can be screened and discharged into the material basin 5 through the first discharge port 4; by setting a lifting part, the material basin 5 can be driven to move upward; by setting a first hydraulic cylinder 6, the raw coal with large particle size in the material basin 5 can be poured into the feed hopper 2, so that the raw coal with large particle size can be crushed again by the crushing part. The utility model screens out the raw coal with large particle size for secondary crushing separately, while the raw coal with small particle size and raw coal with equal particle size have met the crushing requirements and do not need to be crushed again. While improving the crushing effect, it reduces the amount of raw coal that needs secondary crushing, reduces the working intensity of the crushing device, and improves the crushing efficiency.

[0033] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A raw coal crushing device, characterized in that: It includes a crushing box, crushing parts arranged in the crushing box for crushing raw coal, vibrating parts arranged directly below the crushing parts for screening the crushed raw coal, and a driving component arranged outside the crushing box for driving the crushing parts and the vibrating parts to operate. The top surface of the crushing box is connected to a feed hopper, a first discharge port is opened on the side wall of the crushing box, and a second discharge port is opened at the bottom of the crushing box. A material basin for collecting raw coal is arranged on the outside of the crushing box below the first discharge port, a lifting part for driving the material basin to rise and fall is arranged on the bottom surface of the material basin, and a first hydraulic cylinder for driving the material basin to flip and pour the raw coal in the material basin into the feed hopper is installed on the side of the material basin.

2. A raw coal crushing device according to claim 1, characterized in that: The lifting member includes a platform plate horizontally and symmetrically arranged on the bottom surface of the material basin, each of the platform plates is horizontally opened with a sliding groove, each of the sliding grooves is slidably connected with a sliding rod, and two parallel side surfaces of each platform plate are symmetrically provided with centrally hinged scissor rods, one side of each of the scissor rods is respectively fixedly connected to the two ends of each sliding rod, and the other side of each of the scissor rods is respectively fixedly connected to the side wall of each platform plate, and a second hydraulic cylinder for driving each sliding rod to move horizontally is provided in the platform plate away from the material basin, and the bottom surface of the material basin close to the crushing box is hinged to the top surface of the platform plate close to the material basin, and the first hydraulic cylinder is arranged on the side of the material basin away from the crushing box.

3. A raw coal crushing device according to claim 2, characterized in that: The crushing element comprises two rollers which are arranged directly below the feed hopper and are driven by a driving assembly to rotate relative to each other. Each of the rollers is rotationally connected to the crushing box.

4. A raw coal crushing device according to claim 3, characterized in that: The outer side of each roller is provided with an extrusion disk surrounded by the peripheral end of each roller, and each extrusion disk is embedded with each other and is in a whirlwind shape.

5. A raw coal crushing device according to claim 4, characterized in that: A first screen plate inclined toward the first discharge port is provided directly below the two rollers, the vibrating member includes a spring vertically fixed to the bottom surface of the first screen plate and a connecting rod rotatably connected to the side surface of the first screen plate, the free end of the spring is fixed to the crushing box, the free end of the connecting rod passes through the crushing box and is equipped with an eccentric block, the free end of the connecting rod is transmission-connected to the driving assembly, a first baffle plate is surrounded by a first baffle plate at the peripheral end of the top surface of the first screen plate, a first slot connected to the first discharge port is opened on the side of the first baffle plate close to the first discharge port, and the second discharge port is provided directly below the first screen plate.

6. A raw coal crushing device according to claim 5, characterized in that: A second sieve plate is provided directly below the first sieve plate, which is inclined toward the side away from the first discharge port. The sieve holes of the second sieve plate are smaller than those of the first sieve plate. A vibrating member is also provided on the second sieve plate. A second baffle plate is surrounded by the peripheral end of the top surface of the second sieve plate. A second slot is provided on the side of the second baffle plate away from the first discharge port. A third discharge port is provided on the side wall of the crushing box, which is connected to the second discharge port and is used to discharge raw coal of equal particle size. The second discharge port is provided directly below the second sieve plate.

7. A raw coal crushing device according to claim 6, characterized in that: The driving assembly includes a gear box arranged on one side of the crushing box and a motor installed in the gear box, each of the rollers is coaxially connected with a rotating shaft, a universal joint is installed at the free end of each connecting rod, and a rotating rod is coaxially connected to the free end of each universal joint. The free end of each rotating rod extends into the gear box, and the output shaft of the motor is transmission-connected with each rotating shaft and each rotating rod.

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