Automatic unblocking device for raw coal bunker

Abstract

The utility model discloses an automatic raw coal bunker blockage dredging device which comprises a raw coal bunker, a feeding hopper is fixedly installed on the upper end face of the raw coal bunker, material guiding plates are fixedly installed on the inner walls of the two sides of the raw coal bunker, two smashing rollers are rotatably installed in the raw coal bunker, and a motor is fixedly connected to the outer wall of a rotating shaft of one smashing roller. The two smashing rollers are connected through a rotating mechanism, connecting plates are fixedly installed on the inner walls of the two sides of the raw coal bin correspondingly, and connecting rods are slidably installed on the upper end faces of the two connecting plates correspondingly. By arranging the vibrating block, the cam, the buffer spring, the vibrating motor and other components, when the cam continuously rotates and is in intermittent contact with the inner wall of the vibrating groove, under the elastic action of the buffer spring, the screening plate can shake up and down in a reciprocating mode, and therefore the situation that crushed raw coal is left on the screening plate to cause blockage can be avoided; the vibration effect can be enhanced under the vibration effect of the vibration motor, and the raw coal bunker is prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of original coal bunker dredging and blocking, and particularly relates to an automatic dredging and blocking device for an original coal bunker. BACKGROUND

[0002] The original coal bunker refers to an equipment for storing particulate materials such as raw coal and coal slime in a thermal power plant, which is mainly used for storing and supplying coal to ensure the normal operation of the thermal power plant.

[0003] With the continuous progress of science and technology, the material dredging and blocking technology is also continuously innovated and upgraded. In the prior art, the traditional dredging and blocking method has the problems of low efficiency and high work intensity. Since the raw coal has a large moisture content, the phenomenon of blocking is inevitable. The manual dredging and blocking efficiency is too low, which greatly reduces the work efficiency and increases the impact of blocking on production. Therefore, the automatic dredging and blocking device for the original coal bunker needs to be redesigned to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problems in the prior art and provides an automatic dredging and blocking device for an original coal bunker.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The automatic dredging and blocking device for the original coal bunker comprises an original coal bunker, a feed hopper fixedly installed on the upper end face of the original coal bunker, guide plates fixedly installed on the inner walls of the two sides of the original coal bunker, two crushing rollers rotatably installed in the original coal bunker, a motor fixedly connected to the outer wall of the rotating shaft of one of the crushing rollers, the two crushing rollers connected through a rotating mechanism, connecting plates fixedly installed on the inner walls of the two sides of the original coal bunker, connecting rods slidingly installed on the upper end faces of the two connecting plates, limit plates fixedly installed on the outer walls of the two connecting rods, the upper end faces of the two limit plates connected to the bottom walls of the same connecting plate through elastic mechanisms, a screening plate fixedly connected to the end portions of the two connecting rods, a vibration block fixedly installed on the bottom wall of the screening plate, a vibration rod rotatably installed in the original coal bunker, a cam fixedly installed on the outer wall of the vibration rod, a turntable fixedly installed on the outer wall of the rotating shaft of one of the crushing rollers and the outer wall of the vibration rod, rotating rods rotatably installed on the outer walls of the two turntables, the two rotating rods connected through a linking mechanism, a discharge pipe fixedly installed on the inner bottom wall of the original coal bunker and communicating with the outer wall, an air cannon fixedly installed on the outer wall of the original coal bunker through a supporting mechanism, an air inlet pipe fixedly installed on the outer wall of the air cannon and communicating with the inside of the original coal bunker, a vibration motor fixedly installed on the outer wall of the original coal bunker, a plurality of spring telescopic rods fixedly installed on the outer wall of the original coal bunker through a mounting mechanism, a fixed plate fixedly installed on the telescopic end of each spring telescopic rod, and a plurality of fixed holes formed in the upper end face of each fixed plate.

[0007] Preferably, the rotating mechanism comprises gears fixedly installed on the outer walls of the two crushing rollers, and the two gears are engaged with each other.

[0008] Preferably, the elastic mechanism comprises buffer springs installed on the outer walls of the connecting rods, and the two ends of each buffer spring are elastically connected with the bottom wall of the connecting plate and the upper end face of the limiting plate respectively.

[0009] Preferably, the connecting mechanism comprises a connecting plate rotatably installed on the outer walls of the two rotating rods, and the two ends of the connecting plate are rotatably connected with the outer walls of the two rotating rods respectively.

[0010] Preferably, the supporting mechanism comprises a supporting plate fixedly installed on the outer wall of the raw coal bin, and the air cannon is fixedly installed on the upper end face of the supporting plate.

[0011] Preferably, the mounting mechanism comprises a plurality of mounting plates fixedly installed on the outer wall of the raw coal bin, and each spring telescopic rod is fixedly installed on the upper end face of a corresponding mounting plate.

[0012] The raw coal bin automatic unblocking device has the advantages that:

[0013] 1. When the cam continuously rotates and intermittently contacts the inner wall of the vibration groove, the up-down reciprocating shaking of the screening plate can be realized under the elastic action of the spring, so that the clogging of the raw coal bin caused by the retention of the crushed raw coal on the screening plate can be avoided, and the vibration effect can be enhanced under the vibration action of the vibration motor, so that the clogging of the raw coal bin can be avoided.

[0014] 2. The motor can drive one of the crushing rollers to rotate, and the other crushing roller can be driven to rotate through the two gears engaged with each other, so that the two crushing rollers can rotate towards each other to crush the raw coal, and the crushed raw coal can fall on the upper end face of the screening plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the raw coal bin automatic unblocking device provided by the utility model;

[0016] Figure 2 It is a rear view structure schematic view of the raw coal bin automatic unblocking device provided by the utility model;

[0017] Figure 3 It is a vertical section structure schematic view of Figure 1 .

[0018] Figure 4 It is an enlarged schematic view of the structure at A in Figure 3 .

[0019] Figure 5 It is an enlarged schematic view of the structure at B in Figure 3 .

[0020] In the figure: 1 raw coal bin, 2 feeding hopper, 3 guide plate, 4 crushing roller, 5 motor, 6 gear, 7 connecting plate, 8 connecting rod, 9 limiting plate, 10 buffer spring, 11 screening plate, 12 vibrating block, 13 vibrating rod, 14 cam, 15 rotating disc, 16 rotating rod, 17 connecting plate, 18 discharge pipe, 19 supporting plate, 20 air cannon, 21 vibrating motor, 22 mounting plate, 23 spring telescopic rod, 24 fixed plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0022] Reference Figures 1-5 The raw coal bin automatic unblocking device comprises a raw coal bin 1, a feeding hopper 2 is fixedly installed on the upper end face of the raw coal bin 1, guide plates 3 are fixedly installed on the inner walls of the two sides of the raw coal bin 1, two crushing rollers 4 are rotatably installed in the raw coal bin 1, a motor 5 is fixedly connected to the outer wall of the rotating shaft of one of the two crushing rollers 4, the two crushing rollers 4 are connected through a rotating mechanism, the rotating mechanism comprises gears 6 fixedly installed on the outer walls of the two crushing rollers 4, the two gears 6 are engaged with each other, connecting plates 7 are fixedly installed on the inner walls of the two sides of the raw coal bin 1, connecting rods 8 are slidingly installed on the upper end faces of the two connecting plates 7, limiting plates 9 are fixedly installed on the outer walls of the two connecting rods 8, the upper end faces of the two limiting plates 9 are connected with the bottom walls of the connecting plates 7 on the same side through elastic mechanisms, the elastic mechanisms comprise buffer springs 10 installed on the outer walls of the connecting rods 8, and the two ends of the buffer springs 10 are elastically connected with the bottom walls of the connecting plates 7 and the upper end faces of the limiting plates 9 respectively.

[0023] The two connecting rods 8 are fixedly connected with a screening plate 11 at the end portions, the bottom wall of the screening plate 11 is fixedly installed with a vibrating block 12, a vibrating rod 13 is rotatably installed in the raw coal bin 1, a cam 14 is fixedly installed on the outer wall of the vibrating rod 13, rotating discs 15 are fixedly installed on the outer walls of the vibrating rod 13 and the rotating shaft of one of the two crushing rollers 4, rotating rods 16 are rotatably installed on the outer walls of the two rotating discs 15, the two rotating rods 16 are connected through a connecting mechanism, the connecting mechanism comprises a connecting plate 17 rotatably installed on the outer walls of the two rotating rods 16, the two ends of the connecting plate 17 are rotatably connected with the outer walls of the two rotating rods 16, a discharge pipe 18 in communication with the outer wall is fixedly installed on the inner bottom wall of the raw coal bin 1, an air cannon 20 is fixedly installed on the outer wall of the raw coal bin 1 through a supporting mechanism, the supporting mechanism comprises a supporting plate 19 fixedly installed on the outer wall of the raw coal bin 1, the air cannon 20 is fixedly installed on the upper end face of the supporting plate 19, and an air inlet pipe in communication with the inside of the raw coal bin 1 is fixedly installed on the outer wall of the air cannon 20.

[0024] The outer wall of the raw coal bin 1 is fixedly provided with a vibration motor 21, and the outer wall of the raw coal bin 1 is fixedly provided with a plurality of spring telescopic rods 23 through a mounting mechanism, the spring telescopic rod 23 can be used as a supporting rod or an adjusting rod during mechanical installation, is suitable for occasions requiring frequent height adjustment, and has the characteristics of high compression resistance, high strength, durability and the like, the mounting mechanism comprises a plurality of mounting plates 22 fixedly provided on the outer wall of the raw coal bin 1, each spring telescopic rod 23 is fixedly provided on the upper end face of the corresponding mounting plate 22, and each spring telescopic rod 23 is fixedly provided with a fixed plate 24 at the telescopic end.

[0025] In use, the raw coal bin 1 is fixed on the roof through the plurality of fixing holes in the fixed plate 24, then the raw coal to be crushed is poured into the feeding hopper 2 and is located between the two crushing rollers 4 under the cooperation of the two guide plates 3, then the motor 5 drives one of the crushing rollers 4 to rotate, the one crushing roller 4 drives the other crushing roller 4 to rotate through the two gears 6 engaged with each other, at this time, the two crushing rollers 4 can rotate towards each other to crush the raw coal, and after the raw coal is crushed, the crushed raw coal can fall on the upper end face of the screening plate 11, at this time, the motor 5 drives the link plate 17 to rotate through the cooperation of the rotating disc 15 and one of the rotating rods 16, one of the rotating rods 16 drives the other rotating rod 16 to rotate through the cooperation of the link plate 17, thereby driving the vibration rod 13 to rotate, the vibration rod 13 drives the cam 14 to rotate and contacts the inner wall of the vibration groove when rotating, at this time, the vibration block 12 can drive the connecting rod 8 to move upwards and press the buffer spring 10 through the cooperation of the screening plate 11, when the cam 14 does not contact the inner wall of the vibration groove, the screening plate 11 can be driven to move downwards and reset through the connecting rod 8 under the elastic action of the buffer spring 10, and when the cam 14 continuously rotates and intermittently contacts the inner wall of the vibration groove, the screening plate 11 can realize up-down reciprocating shaking under the elastic action of the buffer spring 10, thereby avoiding the crushed raw coal from being retained on the screening plate 11 to cause blockage.

[0026] When the vibration in the raw coal bin 1 cannot make all the raw coal fall from the screening plate 11, the air cannon 20 sprays air at high speed through the cooperation of the air inlet pipe to form a strong shock wave, thereby making the raw coal in the raw coal bin 1 flow again, and then the vibration motor 21 can convert electric energy into mechanical vibration energy to vibrate the whole raw coal bin 1, so that the raw coal on the screening plate 11 falls into the bottom of the raw coal bin 1 under the vibration, and the action force generated during vibration can be buffered under the elastic action of the plurality of spring telescopic rods 23, thereby avoiding the vibration amplitude from being too large to cause the raw coal bin 1 to fall.

[0027] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An automatic unblocking device for a raw coal bin, comprising a raw coal bin (1), characterized in that, The upper end face of the raw coal bin (1) is fixedly installed with a feeding hopper (2), the inner walls of the two sides of the raw coal bin (1) are both fixedly installed with guide plates (3), two crushing rollers (4) are rotatably installed in the raw coal bin (1), the outer wall of the rotating shaft of one of the crushing rollers (4) is fixedly connected with a motor (5), the two crushing rollers (4) are connected through a rotating mechanism, the inner walls of the two sides of the raw coal bin (1) are both fixedly installed with connecting plates (7), the upper end faces of the two connecting plates (7) are both slidably installed with connecting rods (8), the outer walls of the two connecting rods (8) are both fixedly installed with limiting plates (9), the upper end faces of the two limiting plates (9) are both connected with the bottom walls of the connecting plates (7) on the same side through elastic mechanisms, the end portions of the two connecting rods (8) are jointly and fixedly connected with a screening plate (11), the bottom wall of the screening plate (11) is fixedly installed with a vibrating block (12), a vibrating rod (13) is rotatably installed in the raw coal bin (1), the outer wall of the vibrating rod (13) is fixedly installed with a cam (14), the outer wall of the rotating shaft of one of the crushing rollers (4) and the outer wall of the vibrating rod (13) are both fixedly installed with a rotating disc (15), the outer walls of the two rotating discs (15) are both rotatably installed with rotating rods (16), the two rotating rods (16) are connected through a linking mechanism, the inner bottom wall of the raw coal bin (1) is fixedly installed with a discharge pipe (18) in communication with the outer wall, the outer wall of the raw coal bin (1) is fixedly installed with an air cannon (20) through a supporting mechanism, the outer wall of the air cannon (20) is fixedly installed with an air inlet pipe in communication with the inside of the raw coal bin (1), the outer wall of the raw coal bin (1) is fixedly installed with a vibrating motor (21), the outer wall of the raw coal bin (1) is fixedly installed with a plurality of spring telescopic rods (23) through a mounting mechanism, the telescopic ends of the spring telescopic rods (23) are both fixedly installed with fixed plates (24), and the upper end faces of the fixed plates (24) are both provided with a plurality of fixed holes.

2. The automatic clogging and unblocking device for raw coal bunker according to claim 1, characterized in that, The rotating mechanism comprises gear wheels (6) fixedly installed on the outer walls of the two crushing rollers (4), and the two gear wheels (6) are engaged with each other.

3. The automatic clogging and unblocking device for raw coal bunker according to claim 2, characterized in that, The elastic mechanism comprises buffer springs (10) installed on the outer walls of the connecting rods (8), and the two ends of the buffer springs (10) are elastically connected with the bottom walls of the connecting plates (7) and the upper end faces of the limiting plates (9) respectively.

4. The automatic clogging and unblocking device of raw coal bunker according to claim 3, characterized in that, The linking mechanism comprises a linking plate (17) rotatably installed on the outer walls of the two rotating rods (16), and the two ends of the linking plate (17) are rotatably connected with the outer walls of the two rotating rods (16) respectively.

5. The automatic clogging and unblocking device of raw coal bunker according to claim 4, characterized in that, The supporting mechanism comprises a supporting plate (19) fixedly installed on the outer wall of the raw coal bin (1), and the air cannon (20) is fixedly installed on the upper end face of the supporting plate (19).

6. The automatic clogging and unblocking device of raw coal bunker according to claim 5, characterized in that, The mounting mechanism comprises a plurality of mounting plates (22) fixedly installed on the outer wall of the raw coal bin (1), and the spring telescopic rods (23) are respectively fixedly installed on the upper end faces of the corresponding mounting plates (22).

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