Large anti-blocking coal bunker

Abstract

The utility model relates to the technical field of anti-blocking coal bunkers, in particular to a large anti-blocking coal bunker which comprises a vertical cylinder, the bottom of the vertical cylinder is communicated with a hyperbolic bunker, the angle of the inner wall of the hyperbolic bunker is gradually increased from the top of the hyperbolic bunker to the bottom of the hyperbolic bunker, and a plurality of upper air cannons and a plurality of lower air cannons are arranged on the outer wall of the hyperbolic bunker. An air outlet of the upper air cannon and an air outlet of the lower air cannon are both communicated with the hyperbolic bin, and rapping assemblies are arranged under the upper air cannon and the lower air cannon and used for rapping coal in the hyperbolic bin. The device has the effect of reducing the blockage condition of the coal bunker.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti -blocking coal bunker especially, it is a large -scale anti -blocking coal bunker. BACKGROUND

[0002] Coal bunker is important equipment in coal production, transportation and use, mainly used for storing coal, play the role of buffering and regulating coal supply.

[0003] Coal bunker main part is usually a simple funnel shape or silo structure, coal is transported to the coal bunker top opening by belt conveyor and other equipment, then relies on self -gravity to accumulate in the coal bunker. When need to use coal, coal flows out from the coal bunker bottom discharge port, through the feeder and other equipment control coal discharge speed.

[0004] In the process of using coal bunker, coal will gradually accumulate in the coal bunker wall, discharge port and other parts, make the coal in the coal bunker form arch structure, this arch structure is like a bridge as across the discharge port of coal bunker, make coal flow channel gradually narrow, lead to coal flowability gradually become poor, thereby make coal unable to flow normally and occur the blocking condition. SUMMARY

[0005] In order to reduce the coal bunker blocking condition, the application provides a large -scale anti -blocking coal bunker.

[0006] The large -scale anti -blocking coal bunker provided by the application adopts the following technical scheme:

[0007] A large -scale anti -blocking coal bunker, including vertical cylinder, the vertical cylinder bottom intercommunication is provided with double -curve warehouse, the double -curve warehouse inner wall angle gradually increases from the double -curve warehouse top to the double -curve warehouse bottom, the double -curve warehouse outer wall is provided with a plurality of upper air cannons and a plurality of lower air cannons, the upper air cannon's gas outlet and the lower air cannon's gas outlet are all interconnected with double -curve warehouse, the upper air cannon and the lower air cannon are all provided with vibration beating assembly directly below, the vibration beating assembly is used for vibrating the coal in the double -curve warehouse.

[0008] Through adopting the above technical scheme, when coal flows in the double -curve warehouse, although the cross section area of double -curve warehouse reduces and makes coal particle compact, but because the inner wall angle of double -curve warehouse gradually increases, therefore the friction between coal particle and warehouse wall becomes small, and the vertical component force between coal particle and warehouse wall becomes large, thereby not easy to reduce coal flow velocity, make coal particle present stable flow state in the double -curve warehouse, simultaneously the upper air cannon, lower air cannon and vibration assembly work, the upper air cannon and lower air cannon utilize the high pressure high speed gas of instantaneous release to dredge the coal sticking on the warehouse wall, the vibration assembly vibrates and beats the warehouse wall, reduce the condition that coal forms arch structure, thereby reduce the coal bunker blocking condition.

[0009] Preferably, the hyperbolic bin comprises an upper bin and a lower bin, the upper bin has the same height as the lower bin, the upper bin top is communicated with the vertical cylinder, the upper bin bottom is communicated with the lower bin top, the upper air cannon, the lower air cannon and the beating assembly are arranged on the lower bin, and the air outlet of the upper air cannon and the air outlet of the lower air cannon are communicated with the lower bin.

[0010] By using the above technical scheme, the upper air cannon, the lower air cannon and the beating assembly are arranged on the lower bin where the material is more likely to be blocked, and the upper air cannon, the lower air cannon and the beating assembly work to reduce the formation of the arch structure of the coal.

[0011] Preferably, the number of the upper air cannons is equal to the number of the lower air cannons, the upper air cannons are located obliquely above the lower air cannons, the upper air cannons and the lower air cannons are arranged alternately, the upper air cannons are uniformly distributed along the outer wall of the lower bin, the lower air cannons are uniformly distributed along the outer wall of the lower bin, and the beating assemblies are uniformly distributed along the outer wall of the lower bin.

[0012] By using the above technical scheme, the upper air cannon, the lower air cannon and the beating assembly are uniformly arranged, and the upper air cannon, the lower air cannon and the beating assembly uniformly act on the coal in the lower bin.

[0013] Preferably, the beating assembly comprises a movable lining plate, the top end of the movable lining plate is rotationally connected with the inner wall of the lower bin, and a material blocking gap exists between the bottom end of the movable lining plate and the inner wall of the lower bin.

[0014] By using the above technical scheme, the movable lining plate reciprocating rotation beats the coal in the lower bin to loosen the coal adhered together in the lower bin, thereby reducing the formation of the arch structure of the coal.

[0015] Preferably, the beating assembly further comprises a support rod, one end of the support rod abuts against the side of the movable lining plate facing the bin wall of the lower bin, and the other end of the support rod penetrates through the bin wall of the lower bin.

[0016] By using the above technical scheme, the support rod supports the movable lining plate, and a material blocking gap is formed between the bottom end of the movable lining plate and the inner wall of the lower bin, when the support rod reciprocally moves, the support rod drives the movable lining plate to rotate, thereby facilitating the driving of the movable lining plate from the outside of the lower bin.

[0017] Preferably, the beating assembly further comprises a vibration motor, the vibration motor is fixedly arranged on the outer wall of the lower bin, and the output shaft of the vibration motor is connected with the end of the support rod located outside the lower bin.

[0018] By using the above technical scheme, after the vibration motor is started, the output shaft of the vibration motor drives the support rod to reciprocally move, thereby reducing the effect of manually driving the support rod.

[0019] Preferably, a baffle is fixed at one end of the support rod outside the lower bin, the baffle is in contact with the output shaft of the vibration motor on the side away from the support rod, a spring is sleeved on the support rod, one end of the spring is fixedly connected with the outer wall of the lower bin, and the other end of the spring is fixedly connected with the baffle on the side toward the support rod.

[0020] By adopting the above technical scheme, when the vibration motor starts, the output shaft of the vibration motor acts on the baffle, the baffle moves to drive the support rod to move, and at the same time, the baffle moves to extrude the spring. When the output shaft of the vibration motor is separated from the baffle, the extruded spring restores the deformation, so that the spring drives the baffle to move again, the baffle drives the support rod to move, the frequency of reciprocating movement of the support rod is accelerated, and the effect of vibrating and beating the coal by the movable lining plate is realized.

[0021] Preferably, an air flow assisting disc is arranged below the material blocking gap, the air flow assisting disc is located in the lower bin, an air pipe is connected in communication with the air inlet of the air flow assisting disc, and the air pipe penetrates the bin wall.

[0022] By adopting the above technical scheme, the air pipe is connected to the compressed air source, the air flow assisting disc is vibrated at high frequency by using compressed air, and the arching of the coal is reduced. Since the air flow assisting disc is easy to be blocked by coal with high moisture content or fine coal, the air flow assisting disc is installed below the material blocking gap, the movable lining plate is arranged above the air flow assisting disc to form a material blocking effect, and the blocking of the air flow assisting disc is reduced.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. By arranging the vertical cylinder, the double-curved bin, the upper air cannon, the lower air cannon and the beating assembly, the coal flow rate is not easily reduced, the arching of the coal is reduced, and the blocking of the coal bin is reduced.

[0025] 2. By arranging the movable lining plate, the support rod, the vibration motor, the baffle and the spring, the coal in the coal bin is beaten to loosen the coal adhered together in the coal bin, and the arching of the coal is reduced.

[0026] 3. By arranging the air flow assisting disc and the air pipe, the arching of the coal in the coal bin is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 is a large-scale anti-blocking coal bin structure schematic diagram in the embodiment of the present application.

[0028] Fig. 2 is a schematic diagram showing the positional relationship between the upper air cannon and the lower air cannon in the embodiment of the present application.

[0029] Fig. 3 is a sectional view showing the positional relationship between the air flow assisting disc and the material blocking gap in the embodiment of the present application.

[0030] Explanation of reference signs: 1, vertical cylinder; 2, hyperbolic bin; 21, upper bin; 22, lower bin; 3, upper air cannon; 4, lower air cannon; 5, rapping assembly; 51, movable lining plate; 52, support rod; 53, vibration motor; 531, motor frame; 54, baffle; 55, spring; 6, flow-aiding air disc; 61, air pipe; 62, material blocking gap. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings. Figs. 1-3 The present application is further described in detail.

[0032] The present application discloses a large anti-blocking coal bin. Referring to Fig. 1 and Fig. 2 , the vertical cylinder 1 is provided with a hyperbolic bin 2 at the bottom, and the inner wall angle of the hyperbolic bin 2 gradually increases from the top to the bottom. When the coal flows in the hyperbolic bin 2, although the cross-sectional area of the hyperbolic bin 2 decreases, the friction between the coal particles and the bin wall decreases, and the vertical component force between the coal particles and the bin wall increases, so that the coal flow rate is not easily reduced, and the coal particles in the hyperbolic bin 2 present a stable flow state. A plurality of upper air cannons 3 and a plurality of lower air cannons 4 are installed on the outer wall of the hyperbolic bin 2, and the air outlets of the upper air cannons 3 and the lower air cannons 4 are in communication with the hyperbolic bin 2. The upper air cannons 3 and the lower air cannons 4 use instantaneously released high-pressure and high-speed gas to unblock the coal adhering to the bin wall, reduce the formation of arch-shaped structure of the coal, and thus reduce the blocking of the coal bin. A rapping assembly 5 is installed below the upper air cannon 3 and the lower air cannon 4, and the rapping assembly 5 is used for rapping the coal in the hyperbolic bin 2. The vibration assembly raps the bin wall, reduces the formation of arch-shaped structure of the coal, and thus reduces the blocking of the coal bin.

[0033] In order to reduce the formation of arch-shaped structure of the coal, referring to Fig. 1 and Fig. 2 , the hyperbolic bin 2 includes an upper bin 21 and a lower bin 22, the height of the upper bin 21 is equal to the height of the lower bin 22, the top of the upper bin 21 is in communication with the vertical cylinder 1, and the bottom of the upper bin 21 is in communication with the top of the lower bin 22. The upper air cannons 3, the lower air cannons 4 and the rapping assembly 5 are all installed on the lower bin 22 where the blocking is more likely to occur, and the air outlets of the upper air cannons 3 and the lower air cannons 4 are in communication with the lower bin 22. The number of the upper air cannons 3 is equal to the number of the lower air cannons 4, the upper air cannons 3 are located obliquely above the lower air cannons 4, and the upper air cannons 3 and the lower air cannons 4 are arranged alternately. The upper air cannons 3 are uniformly distributed along the outer wall of the lower bin 22, the lower air cannons 4 are uniformly distributed along the outer wall of the lower bin 22, and the rapping assembly 5 is uniformly distributed along the outer wall of the lower bin 22, so that the upper air cannons 3, the lower air cannons 4 and the rapping assembly 5 uniformly act on the coal in the lower bin 22.

[0034] In order to vibrate the coal in the coal bunker, with reference to Figs. 1 to 3 , the vibration assembly 5 includes a movable lining plate 51, a support rod 52 and a vibration motor 53. The support rod 52 penetrates the wall of the lower bunker 22, and the top end of the movable lining plate 51 is rotationally connected to the inner wall of the lower bunker 22. One end of the support rod 52 located in the lower bunker 22 abuts against the side of the movable lining plate 51 facing the wall of the lower bunker 22, and the support rod 52 supports the movable lining plate 51, forming a material blocking gap 62 between the bottom end of the movable lining plate 51 and the inner wall of the lower bunker 22. The other end of the support rod 52 located outside the lower bunker 22 is provided with a baffle 54, and the vibration motor 53 is supported and installed on the outer wall of the lower bunker 22 through a motor bracket 531. The output shaft of the vibration motor 53 contacts the side of the baffle 54 away from the support rod 52. A spring 55 is sleeved on the support rod 52, one end of the spring 55 is welded to the outer wall of the lower bunker 22, and the other end of the spring 55 is welded to the side of the baffle 54 facing the support rod 52. After the vibration motor 53 is started, the output shaft of the vibration motor 53 acts on the baffle 54, the baffle 54 moves to drive the support rod 52 to move, and at the same time, the baffle 54 moves to compress the spring 55. When the output shaft of the vibration motor 53 is separated from the baffle 54, the compressed spring 55 restores the deformation, so that the spring 55 drives the baffle 54 to move again, and the baffle 54 drives the support rod 52 to move, thereby increasing the frequency of the reciprocating movement of the support rod 52. When the support rod 52 reciprocates, the support rod 52 pushes the movable lining plate 51 to rotate, and the movable lining plate 51 reciprocates to vibrate the coal in the lower bunker 22, thereby loosening the coal adhered together in the lower bunker 22 and reducing the formation of arch structure of the coal.

[0035] In order to reduce the arching of coal in the coal bunker, with reference to Figs. 1 to 3 , a flow assisting air disc 6 is installed below the material blocking gap 62, and the flow assisting air disc 6 is located in the lower bunker 22. Since the flow assisting air disc 6 is easy to be blocked by coal with high moisture content or fine coal, the flow assisting air disc 6 is installed below the material blocking gap 62, and the movable lining plate 51 forms a material blocking effect above the flow assisting air disc 6, thereby reducing the blocking of the flow assisting air disc 6. A gas pipe 61 is connected to the air inlet of the flow assisting air disc 6, penetrates the wall of the lower bunker 22, and is connected to a compressed gas source. The flow assisting air disc 6 vibrates at high frequency by using compressed air, thereby reducing the arching of coal.

[0036] The implementation principle of the large anti-blocking coal bunker according to the embodiment of the application is as follows: when the coal flows in the hyperbolic curve bunker 2, although the cross-sectional area of the hyperbolic curve bunker 2 is reduced to compact the coal particles, the friction between the coal particles and the inner wall of the hyperbolic curve bunker 2 is reduced and the vertical component force between the coal particles and the inner wall of the hyperbolic curve bunker 2 is increased due to the gradually increased inclination angle of the inner wall of the hyperbolic curve bunker 2, so that the coal flow speed is not easily reduced, and the coal particles present a stable flow state in the hyperbolic curve bunker 2. The upper air cannon 3 and the lower air cannon 4 use the high-pressure and high-speed gas released instantaneously to dredge the coal adhered to the inner wall of the hyperbolic curve bunker 2, reduce the situation that the coal forms an arch structure, and thus reduce the coal blocking in the coal bunker. The reciprocating rotation of the movable lining plate 51 vibrates and beats the coal in the lower bunker 22, loosens the coal adhered together in the lower bunker 22, and reduces the situation that the coal forms an arch structure. The flow-aiding air disc 6 uses compressed air to perform high-frequency vibration, and reduces the situation that the coal forms an arch.

[0037] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A large anti-blocking coal bunker, comprising a vertical cylinder, a double-curved bunker is communicated at the bottom of the vertical cylinder, characterized in that: The angle of the inner wall of the hyperbolic bin gradually increases from the top to the bottom of the hyperbolic bin, the outer wall of the hyperbolic bin is provided with a plurality of upper air cannons and a plurality of lower air cannons, the air outlets of the upper air cannons and the air outlets of the lower air cannons are in communication with the hyperbolic bin, a rapping assembly is arranged below the upper air cannon and below the lower air cannon, and the rapping assembly is used for rapping the coal in the hyperbolic bin. The hyperbolic bin comprises an upper bin and a lower bin, the height of the upper bin is equal to the height of the lower bin, the top of the upper bin is in communication with the vertical cylinder, the bottom of the upper bin is in communication with the top of the lower bin, the upper air cannon, the lower air cannon and the rapping assembly are arranged on the lower bin, and the air outlets of the upper air cannon and the lower air cannon are in communication with the lower bin. The number of the upper air cannons is equal to the number of the lower air cannons, the upper air cannons are located obliquely above the lower air cannons, the upper air cannons and the lower air cannons are arranged alternately, the upper air cannons are uniformly distributed along the outer wall of the lower bin, the lower air cannons are uniformly distributed along the outer wall of the lower bin, and the rapping assemblies are uniformly distributed along the outer wall of the lower bin. The rapping assembly comprises a movable lining plate, the top end of the movable lining plate is rotationally connected with the inner wall of the lower bin, and a material blocking gap exists between the bottom end of the movable lining plate and the inner wall of the lower bin.

2. A large-scale anti-blocking coal bunker according to claim 1, characterized in that: The rapping assembly further comprises a support rod, one end of the support rod abuts against the side of the movable lining plate facing the bin wall of the lower bin, and the other end of the support rod penetrates through the bin wall of the lower bin.

3. A large-scale anti-blocking coal bunker according to claim 2, characterized in that: The rapping assembly further comprises a vibration motor, the vibration motor is fixedly arranged on the outer wall of the lower bin, and the output shaft of the vibration motor is connected with the end of the support rod located outside the lower bin.

4. A large-scale anti-blocking coal bunker according to claim 3, characterized in that: A baffle is fixedly arranged at the end of the support rod located outside the lower bin, the side of the baffle away from the support rod is in contact with the output shaft of the vibration motor, a spring is sleeved on the support rod, one end of the spring is fixedly connected with the outer wall of the lower bin, and the other end of the spring is fixedly connected with the side of the baffle facing the support rod.

5. A large-scale anti-blocking coal bunker according to claim 1, characterized in that: A flow assisting air disc is arranged below the material blocking gap, the flow assisting air disc is located in the lower bin, and a gas pipe is arranged on the air inlet of the flow assisting air disc in communication.

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