Raw coal crushing device

Abstract

The utility model discloses a raw coal crushing device which comprises a crushing box, a feeding hopper is fixedly connected to the top end of the crushing box, a discharging hopper is fixedly connected to the bottom of the crushing box, a plurality of supporting legs are fixedly connected to the side wall of the crushing box, and the raw coal crushing device further comprises a sufficient crushing mechanism located in the middle of the crushing box. The crushing device is used for crushing raw coal; the filtering and screening mechanism is located at the top of the discharging hopper and used for filtering and screening the crushed raw coal; according to the scheme, by arranging the sufficient crushing mechanism, large raw coal can be circularly rolled and crushed, so that the situation that the raw coal is not sufficiently and thoroughly crushed is avoided, the purpose of improving the raw coal crushing effect is achieved, by arranging the filtering and screening mechanism, the crushed raw coal can be filtered and screened, and the raw coal crushing efficiency is improved. Therefore, raw coal can be crushed more sufficiently and uniformly.

Description

Technical Field

[0001] The present application relates to the technical field of crushing devices, and in particular to 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, but excluding low calorific value coal (such as stone coal, peat, oil shale, etc.); raw coal can be divided into three categories according to its origin, namely humic coal, saprophytic coal and humic saprophytic coal; according to its degree of carbonization, it can be divided into peat, lignite, bituminous coal, anthracite, etc., and in the process of raw coal production and processing, some larger raw coals are often crushed by crushing equipment.

[0003] When the existing crushing device is crushing raw coal, some large raw coal is often put into the crushing box from the hopper, and the large pieces of raw coal are crushed by hammering by the machine;

[0004] However, in the process of implementing this method, only large pieces of raw coal can be simply crushed. After being hammered, some raw coal still has a large volume, resulting in insufficient and incomplete crushing, and the crushing effect of raw coal is often poor. Therefore, those skilled in the art provide a raw coal crushing device to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the present application provides a raw coal crushing device.

[0006] The raw coal crushing device provided in this application adopts the following technical solution:

[0007] A raw coal crushing device comprises a crushing box, the top of which is fixedly connected to a feed hopper, the bottom of which is fixedly connected to a discharge hopper, the side walls of which are fixedly connected to a plurality of support legs, and further comprises

[0008] A full crushing mechanism, which is located in the middle of the crushing box and is used to crush the raw coal;

[0009] The filtering and screening mechanism is located at the top of the discharge hopper and is used to filter and screen the crushed raw coal.

[0010] Preferably, the fully crushing mechanism includes two crushing rollers, a drive assembly and a circulation assembly, the two crushing rollers are rotatably connected to the inner side of the crushing box, and one end of the two crushing rollers rotates through one end of the crushing box, the drive assembly is installed at one end of the crushing box to drive the two crushing rollers to rotate in opposite directions, and the circulation assembly is installed in the middle of the other end of the crushing box.

[0011] Preferably, the driving assembly includes a protection box, a first motor and two transmission gears, one end of the protection box is fixedly connected to one end of the crushing box, the first motor is fixedly connected to the inner wall of the protection box, and the output end of the first motor is fixedly connected to the extended end of one of the crushing rollers, the two transmission gears are respectively fixedly connected to the extended ends of the two crushing rollers, and the two transmission gears are meshed with each other.

[0012] Preferably, the circulation component includes a circulation turntable, a second motor and a plurality of sweeping plates, the second motor is fixedly connected to the middle of the other end of the crushing box, one end of the circulation turntable is rotatably connected to the inner side of the other end of the crushing box, and the output end of the second motor rotates through the middle of the other end of the crushing box and is fixedly connected to one end of the circulation turntable, and one end of the plurality of sweeping plates is fixedly connected to the other end of the circulation turntable.

[0013] Preferably, the filtering and screening mechanism includes a plurality of fixed plates, a plurality of supporting slide bars, a filter mesh plate, a plurality of springs and a vibration assembly, wherein the plurality of fixed plates are fixedly connected to the inner side of the top of the discharge hopper, the filter mesh plate is slidably connected to the top of the plurality of fixed plates through a plurality of supporting slide bars, the two ends of the plurality of springs are respectively fixedly connected to the top of the plurality of fixed plates and the bottom of the filter mesh plate, and the vibration assembly is installed at the bottom center of the filter mesh plate.

[0014] Preferably, the vibration assembly includes a vibration plate and a vibration motor, and the vibration motor is fixedly connected to the bottom center of the filter screen plate through the vibration plate.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] By setting up a sufficient crushing mechanism, large pieces of raw coal can be subjected to cyclic rolling and crushing processing, thereby avoiding the situation where the raw coal is not sufficiently and thoroughly crushed, thereby achieving the purpose of improving the crushing effect of the raw coal, and by setting up a filtering and screening mechanism, the crushed raw coal can be filtered and screened to ensure that the raw coal is crushed more fully and evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a raw coal crushing device in an embodiment of the present application;

[0018] Figure 2 It is a front cross-sectional view of a partial structure of a raw coal crushing device in an embodiment of the present application;

[0019] Figure 3 It is a left-side cross-sectional view of the structure of a raw coal crushing device in an embodiment of the present application;

[0020] Figure 4This is a schematic structural diagram of a sufficient crushing mechanism of a raw coal crushing device in an embodiment of the present application;

[0021] Figure 5 It is a bottom-up cross-sectional view of the partial structure of a filtering and screening mechanism of a raw coal crushing device in an embodiment of the present application.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. Crushing box; 2. Feed hopper; 3. Discharge hopper; 4. Support leg; 5. Full crushing mechanism; 501. Crushing roller; 6. Circulation component; 601. Circulation turntable; 602. Second motor; 603. Sweeping plate; 7. Filtering and screening mechanism; 701. Fixed plate; 702. Support slide bar; 703. Filter screen plate; 704. Spring; 8; Drive component; 801. Protection box; 802. First motor; 803. Transmission gear; 9. Vibration component; 901. Vibration plate; 902. Vibration motor. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-4 This application is described in further detail.

[0024] The present application embodiment discloses a raw coal crushing device. Figure 3 , Figure 4 A raw coal crushing device comprises a crushing box 1, a feed hopper 2 is fixedly connected to the top of the crushing box 1, a discharge hopper 3 is fixedly connected to the bottom of the crushing box 1, a plurality of supporting legs 4 are fixedly connected to the side wall of the crushing box 1, and a full crushing mechanism 5 is also included, which is located in the middle of the crushing box 1 and is used for crushing the raw coal;

[0025] A filtering and screening mechanism 7, which is located at the top of the discharge hopper 3 and is used to filter and screen the crushed raw coal;

[0026] The full crushing mechanism 5 includes two crushing rollers 501, a driving assembly 8 and a circulation assembly 6. The two crushing rollers 501 are both rotatably connected to the inner side of the crushing box 1, and one end of the two crushing rollers 501 rotates through one end of the crushing box 1. The driving assembly 8 is installed at one end of the crushing box 1 to drive the two crushing rollers 501 to rotate in opposite directions. The circulation assembly 6 is installed in the middle of the other end of the crushing box 1.

[0027] The driving assembly 8 includes a protection box 801, a first motor 802 and two transmission gears 803. One end of the protection box 801 is fixedly connected to one end of the crushing box 1, the first motor 802 is fixedly connected to the inner wall of the protection box 801, and the output end of the first motor 802 is fixedly connected to the extended end of one of the crushing rollers 501. The two transmission gears 803 are respectively fixedly connected to the extended ends of the two crushing rollers 501, and the two transmission gears 803 are meshed with each other.

[0028] The circulation assembly 6 includes a circulation turntable 601, a second motor 602 and a plurality of sweeping plates 603. The second motor 602 is fixedly connected to the middle of the other end of the crushing box 1. One end of the circulation turntable 601 is rotatably connected to the inner side of the other end of the crushing box 1. The output end of the second motor 602 rotates through the middle of the other end of the crushing box 1 and is fixedly connected to one end of the circulation turntable 601. One end of the plurality of sweeping plates 603 is fixedly connected to the other end of the circulation turntable 601.

[0029] In this embodiment, first, the raw coal is put into the crushing box 1 supported and fixed by the supporting legs 4 through the feed hopper 2 for crushing operation. Then, after the raw coal is put into the crushing box 1, the first motor 802 sealed and protected by the protection box 801 is started to provide a force to drive one of the crushing rollers 501 to rotate inside the crushing box 1. The rotation of one of the crushing rollers 501 drives one of the transmission gears 803 to rotate. The rotation of one of the transmission gears 803 drives the other transmission gear 803 meshed with it to rotate, thereby driving the other crushing roller 501 to rotate in the crushing box 1. In this way, the raw coal falling in the middle can be crushed and crushed by the two crushing rollers 501 rotating in opposite directions.

[0030] After the initial crushing, the raw coal is filtered, screened and separated by the filtering and screening mechanism 7, and then the second motor 602 is started to provide force to drive the circulating turntable 601 to rotate in the crushing box 1. The circulation turntable 601 rotates, thereby driving several sweeping plates 603 to rotate and sweep the screened and retained raw coal back to the top of the two crushing rollers 501 for crushing and crushing again. In this way, the cyclic crushing process of the raw coal can be realized, making the crushing more complete and thorough.

[0031] Further, the filtering and screening mechanism 7 includes a plurality of fixed plates 701, a plurality of supporting slide bars 702, a filter screen plate 703, a plurality of springs 704 and a vibration assembly 9, wherein the plurality of fixed plates 701 are fixedly connected to the inner side of the top of the discharge hopper 3, the filter screen plate 703 is slidably connected to the top of the plurality of fixed plates 701 through the plurality of supporting slide bars 702, the two ends of the plurality of springs 704 are respectively fixedly connected to the top of the plurality of fixed plates 701 and the bottom of the filter screen plate 703, and the vibration assembly 9 is installed at the bottom center of the filter screen plate 703;

[0032] The vibration assembly 9 includes a vibration plate 901 and a vibration motor 902, and the vibration motor 902 is fixedly connected to the bottom center of the filter screen plate 703 through the vibration plate 901;

[0033] On the basis of the above embodiment, the raw coal after the initial crushing is filtered, screened and separated by the filter plate 703 to filter out the raw coal that is not fully crushed and still has a large volume, and the vibration motor 902 is started to provide a force to drive the vibration plate 901 to vibrate. The vibration of the vibration plate 901 drives the filter plate 703 to slide on the top of the fixed plate 701 through the support slide rod 702 and then vibrate up and down to quickly filter and screen the raw coal thereon, and the spring 704 provides a reaction force to limit and shock-absorb the filter plate 703, thereby facilitating the automatic screening of the raw coal, ensuring the uniformity of the crushing degree of the raw coal while improving the processing efficiency of the raw coal crushing.

[0034] The implementation principle of a raw coal crushing device in the embodiment of the present application is as follows: when in use, first, the raw coal to be processed is put into the crushing box 1 through the feed hopper 2, and one of the crushing rollers 501 is driven to rotate inside the crushing box 1 by the first motor 802, and one of the crushing rollers 501 is driven to rotate by the rotation of one of the crushing rollers 501, and the other transmission gear 803 is driven to rotate by the rotation of one of the transmission gears 803, and then the other crushing roller 501 is driven to rotate in the crushing box 1, and the two crushing rollers 501 are driven to rotate in opposite directions to crush the raw coal fallen therein, and at the same time, the second motor 602 is started to drive the circulating turntable 601 to rotate inside the crushing box 1, and the circulation turntable 601 is driven to rotate to drive the sweeping plate 603 to rotate to sweep the raw coal that is not fully crushed after screening from the bottom and send it back to the top of the two crushing rollers 501, thereby The raw coal is crushed repeatedly in a cycle, thereby achieving the purpose of effectively facilitating the cyclic crushing of the raw coal, making the crushing of the raw coal more complete and thorough, and improving the crushing effect. Secondly, the raw coal that has been crushed by rolling is filtered, screened and separated by the filter plate 703 to filter the insufficiently crushed raw coal, and the vibration motor 902 is started to drive the vibration plate 901 to vibrate. The vibration of the vibration plate 901 drives the filter plate 703 to slide on the top of the fixed plate 701 through the support slide bar 702 and then vibrate up and down so that the raw coal on it can quickly pass through the filter plate 703 for filtering and screening during the vibration, and the spring 704 provides a reaction force to limit and shock-absorbing protection of the filter plate 703, thereby effectively ensuring the uniformity of the crushing degree of the raw coal, and automatically screening to improve work efficiency. Finally, the qualified raw coal after screening is discharged through the discharge hopper 3 at the bottom of the crushing box 1 to achieve the crushing processing of the raw coal.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A raw coal crushing device, comprising a crushing box (1), characterized in that: The top of the crushing box (1) is fixedly connected to a feed hopper (2), the bottom of the crushing box (1) is fixedly connected to a discharge hopper (3), the side wall of the crushing box (1) is fixedly connected to a plurality of support legs (4), and further comprises A full crushing mechanism (5), which is located in the middle of the crushing box (1) and is used to crush the raw coal; A filtering and screening mechanism (7), which is located at the top of the discharge hopper (3) and is used to filter and screen the crushed raw coal; The full crushing mechanism (5) comprises two crushing rollers (501), a driving assembly (8) and a circulation assembly (6), the two crushing rollers (501) are both rotatably connected to the inner side of the crushing box (1), and one end of the two crushing rollers (501) rotates through one end of the crushing box (1), the driving assembly (8) is installed at one end of the crushing box (1) to drive the two crushing rollers (501) to rotate in opposite directions, and the circulation assembly (6) is installed at the middle of the other end of the crushing box (1); The circulation component (6) comprises a circulation turntable (601), a second motor (602) and a plurality of sweeping plates (603), wherein the second motor (602) is fixedly connected to the middle of the other end of the crushing box (1), one end of the circulation turntable (601) is rotatably connected to the inner side of the other end of the crushing box (1), and the output end of the second motor (602) rotates through the middle of the other end of the crushing box (1) and is fixedly connected to one end of the circulation turntable (601), and one end of the plurality of sweeping plates (603) is fixedly connected to the other end of the circulation turntable (601).

2. A raw coal crushing device according to claim 1, characterized in that: The driving assembly (8) comprises a protection box (801), a first motor (802) and two transmission gears (803); one end of the protection box (801) is fixedly connected to one end of the crushing box (1); the first motor (802) is fixedly connected to the inner wall of the protection box (801); and the output end of the first motor (802) is fixedly connected to the extended end of one of the crushing rollers (501); the two transmission gears (803) are respectively fixedly connected to the extended ends of the two crushing rollers (501), and the two transmission gears (803) are meshed with each other.

3. A raw coal crushing device according to claim 1, characterized in that: The filtering and screening mechanism (7) comprises a plurality of fixed plates (701), a plurality of supporting slide bars (702), a filter screen plate (703), a plurality of springs (704) and a vibration assembly (9), wherein the plurality of fixed plates (701) are fixedly connected to the inner side of the top of the discharge hopper (3), the filter screen plate (703) is slidably connected to the top of the plurality of fixed plates (701) through the plurality of supporting slide bars (702), the two ends of the plurality of springs (704) are respectively fixedly connected to the top of the plurality of fixed plates (701) and the bottom of the filter screen plate (703), and the vibration assembly (9) is installed at the bottom center of the filter screen plate (703).

4. A raw coal crushing device according to claim 3, characterized in that: The vibration assembly (9) comprises a vibration plate (901) and a vibration motor (902), and the vibration motor (902) is fixedly connected to the bottom center of the filter screen plate (703) through the vibration plate (901).

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