CN219401514U - A clear stifled device for coal pipe down - Google Patents

Abstract

The utility model discloses a blockage removing device for a lower coal pipe, which relates to the technical field of coal conveying of heat source plants and comprises the lower coal pipe and a coal inlet pipe, wherein the lower coal pipe is communicated and connected with the coal inlet pipe, a fixed plate is fixedly arranged in the lower coal pipe and above the communication position of the lower coal pipe and the coal inlet pipe, a first through hole is formed in the center position of the fixed plate, a telescopic assembly is arranged in the first through hole, the telescopic assembly is in sliding connection with the fixed plate, the bottom end of the telescopic assembly is communicated and connected with a movable plate, and a plurality of second through holes are formed in the fixed plate; according to the utility model, the plurality of threaded rods are driven by the driving motor to move downwards in the lower coal pipe, so that the moving plate and the telescopic assembly are driven to move downwards, the moving plate scrapes the coal adhered to the side wall of the lower coal pipe, the external air compression device sweeps the coal through the telescopic assembly, manual cleaning is not needed, and the working efficiency is improved.

Description

A clear stifled device for coal pipe down

Technical Field

The utility model relates to the technical field of coal conveying in heat source plants, in particular to a blockage removing device for a lower coal pipe.

Background

The circulating fluidized bed boiler adopts clean coal combustion technology with highest industrialization degree, the circulating fluidized bed boiler adopts fluidized combustion, the main structure comprises two parts of a combustion chamber and a circulating furnace, the biggest difference with the bubbling fluidized bed combustion technology is that the operation wind speed is high, and heterogeneous reaction processes such as combustion, desulfurization and the like are strengthened.

When a heat source plant equipped with a circulating fluidized bed boiler is operated, coal is required to be conveyed into the boiler through a lower coal pipe, wet coal is inevitably present in the process of conveying the coal into the boiler, and blockage occurs at an elbow of the lower coal pipe and an inclined pipe below the elbow, manual cleaning is required at intervals, the workload is high, and the labor cost is seriously increased, so that a blockage removal device for the lower coal pipe is urgently required to be developed.

Disclosure of Invention

According to the blockage removing device for the lower coal pipe, the driving motor drives the threaded rods to move downwards in the lower coal pipe, the moving plate and the telescopic assembly are driven to move downwards, the moving plate scrapes coal adhered to the side wall of the lower coal pipe, the external air compression device sweeps the coal through the telescopic assembly, manual cleaning is not needed, and working efficiency is improved.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a clear stifled device for coal pipe down, includes coal pipe and advance coal pipe down, coal pipe and advance coal pipe intercommunication and be connected down, just be located down coal pipe and advance the fixed plate that is provided with in coal pipe intercommunication department down, first through-hole has been seted up to the central point of fixed plate, be provided with telescopic subassembly in the first through-hole, telescopic subassembly and fixed plate sliding connection, telescopic subassembly's bottom intercommunication is connected with the movable plate, a plurality of second through-holes have been seted up on the fixed plate, a plurality of be provided with a plurality of threaded rods in the second through-hole, a plurality of threaded rods respectively with fixed plate sliding connection and bottom and movable plate fixed connection, be provided with drive assembly on the fixed plate, be provided with driving motor down on the coal pipe, driving motor can drive a plurality of threaded rods and remove in a plurality of second through-holes through drive assembly, telescopic subassembly's top is connected with external air compression device, through telescopic subassembly can send into down in the coal pipe with compressed air.

Preferably, the transmission assembly comprises a first gear, a connecting rod, a second gear, a third gear, a plurality of fourth gears, a plurality of plane bearings, a bearing, a connecting ring and a fifth gear, wherein the connecting ring is fixedly arranged at the middle position above the fixed plate, the telescopic assembly penetrates through the first through hole and the connecting ring, the inner ring of the bearing is fixedly connected with the outer ring of the connecting ring, the inner ring of the fifth gear is fixedly connected with the outer ring of the bearing, the plurality of plane bearings are arranged at positions corresponding to the plurality of second through holes on the fixed plate, one side of the fourth gear is connected with the plurality of plane bearings, the plurality of fourth gears are connected with the fifth gear in a meshed mode, the inner ring of each fourth gear is provided with threads, the plurality of threaded rods penetrate through hollow parts of the plurality of fourth gears respectively and are in threaded mode with the plurality of fourth gears, the inner wall of the lower coal pipe is provided with a limiting assembly, the connecting rod is rotationally arranged on the limiting assembly, the limiting assembly can enable the connecting rod not to move axially, one end of the connecting rod is close to the fixed plate, one end of the connecting rod is connected with the first gear, the other end of the fourth gear is in meshed mode with the fifth gear, the other end of the driving motor is meshed with the fourth gear, and the driving gear is meshed with the fourth gear.

Preferably, the limiting component comprises a limiting block and a first limiting ring, the limiting block is arranged on the inner side wall of the lower coal pipe, a third through hole is formed in the limiting block, the connecting rod penetrates through the third through hole and is rotationally connected with the limiting block, the first limiting ring is arranged on the side wall of the connecting rod, a groove is formed in the limiting block, and the first limiting ring is arranged in the groove.

Preferably, the telescopic component comprises a first barrel, a second barrel and a third barrel, wherein the bottom end of the first barrel is connected with the movable plate in a communicating manner, the second barrel is arranged in the first barrel and is in sliding connection with the first barrel, the third barrel is arranged in the second barrel and is in sliding connection with the second barrel, second limiting rings are respectively arranged on the inner side walls of the bottom ends of the first barrel, the second barrel and the third barrel, fourth limiting rings are respectively arranged on the inner side walls of the top ends of the first barrel and the third barrel, third limiting rings are respectively arranged on the outer side walls of the bottom ends of the second barrel and the third barrel, the second limiting rings and the fourth limiting rings on the first barrel can limit the third limiting rings on the second barrel, and the second limiting rings and the fourth limiting rings on the second barrel can limit the third limiting rings on the third barrel, and the top ends of the third barrel are connected with an air outlet of the air compression device.

The utility model provides a blockage removing device for a coal pipe, which has the following beneficial effects:

1. according to the utility model, the plurality of threaded rods are driven by the driving motor to move downwards in the lower coal pipe, so that the moving plate and the telescopic assembly are driven to move downwards, the moving plate scrapes the coal adhered on the side wall of the lower coal pipe, the external air compression device sweeps the coal through the telescopic assembly, and the coal does not need to be cleaned manually, so that the working efficiency is improved;

2. the output end of the driving motor drives the third gear to rotate, the third gear drives the second gear in meshed connection with the third gear to rotate, the second gear drives the first gear to rotate, the first gear drives the fifth gear to rotate, the fifth gear drives the fourth gears to rotate, the fourth gears drive the threaded rods in threaded connection to move, and further the threaded rods drive the moving plate to move, so that coal on the side wall of the coal pipe is scraped.

Drawings

Fig. 1 is a schematic structural view of a blockage removal device for a lower coal pipe.

Fig. 2 is an enlarged view of a portion a of fig. 1 of a plugging removal device for a lower coal pipe according to the present utility model.

FIG. 3 is a cross-sectional view of the block-removing device for a lower coal pipe of the present utility model at B-B in FIG. 1.

In the figure: 1. a coal pipe is arranged; 2. a coal inlet pipe; 3. a fixing plate; 4. a moving plate; 5. a threaded rod; 6. a first gear; 7. a connecting rod; 8. a limiting block; 9. a second gear; 10. a third gear; 11. a driving motor; 12. a fourth gear; 13. a planar bearing; 14. a first stop collar; 15. a bearing; 16. a connecting ring; 17. a fifth gear; 18. a first cylinder; 19. a second cylinder; 20. a second limiting ring; 21. a third limiting ring; 22. a fourth stop collar; 23. a third cylinder; 24. and (5) through grooves.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, a blockage removing device for a lower coal pipe comprises a lower coal pipe 1 and a coal inlet pipe 2, wherein the lower coal pipe 1 is connected with the coal inlet pipe 2 in a communicating way, a fixed plate 3 is fixedly arranged in the lower coal pipe 1 and above the communicating part of the lower coal pipe 1 and the coal inlet pipe 2, a first through hole is formed in the center position of the fixed plate 3, a telescopic component is arranged in the first through hole, the telescopic component is in sliding connection with the fixed plate 3, the bottom end of the telescopic component is connected with a movable plate 4 in a communicating way, a plurality of second through holes are formed in the fixed plate 3, a plurality of threaded rods 5 are respectively connected with the fixed plate 3 in a sliding way, the bottom ends of the threaded rods 5 are fixedly connected with the movable plate 4, a transmission component is arranged on the fixed plate 3, a driving motor 11 is arranged on the lower coal pipe 1, the driving motor 11 can drive the plurality of threaded rods 5 to move in the plurality of second through holes through the transmission component, the top end of the telescopic component is connected with an external device, and the telescopic component can be used for compressing air into the lower coal pipe 1 through the telescopic component; the transmission assembly comprises a first gear 6, a connecting rod 7, a second gear 9, a third gear 10, a plurality of fourth gears 12, a plurality of plane bearings 13, bearings 15, a connecting ring 16 and a fifth gear 17, wherein the connecting ring 16 is fixedly arranged at the middle position above the fixed plate 3, the telescopic assembly penetrates through a first through hole and the connecting ring 16, the inner ring of the bearing 15 is fixedly connected with the outer ring of the connecting ring 16, the inner ring of the fifth gear 17 is fixedly connected with the outer ring of the bearing 15, the plurality of plane bearings 13 are arranged at positions corresponding to the plurality of second through holes on the fixed plate 3, one side of the plurality of fourth gears 12 is connected with the plurality of plane bearings 13, the plurality of fourth gears 12 are meshed with the fifth gear 17, the inner ring of each fourth gear 12 is provided with threads, the plurality of threaded rods 5 penetrate through the hollow parts of the plurality of fourth gears 12 respectively and are connected with the threads of the plurality of fourth gears 12, a limit assembly is arranged on the inner wall of the lower coal pipe 1, the connecting rod 7 is rotatably arranged at the position of the fixed plate 3 corresponding to the plurality of second through holes, the connecting rod 7 is rotatably connected with the outer ring of the bearing 15, the connecting rod 7 is meshed with the fourth gear 12, the other end of the fourth gear 10 is meshed with the fourth gear 11, the fourth gear 11 is meshed with the fourth gear 11, the other end of the connecting rod 10 is meshed with the fourth gear 10, and the fourth gear 11 is meshed with the fourth gear 11, and the fourth gear 11 is meshed with the fourth gear 11, the fourth gear is meshed with the fifth gear 11 and the fifth gear is meshed with the fifth gear 3; the limiting assembly comprises a limiting block 8 and a first limiting ring 14, the limiting block 8 is arranged on the inner side wall of the lower coal pipe 1, a third through hole is formed in the limiting block 8, the connecting rod 7 penetrates through the third through hole and is rotationally connected with the limiting block 8, the first limiting ring 14 is arranged on the side wall of the connecting rod 7, a groove is formed in the limiting block 8, and the first limiting ring 14 is arranged in the groove; the telescopic component comprises a first barrel 18, a second barrel 19 and a third barrel 23, wherein the bottom end of the first barrel 18 is connected with the movable plate 4 in a communicating way, the second barrel 19 is arranged in the first barrel 18 and is in sliding connection with the first barrel 18, the third barrel 23 is arranged in the second barrel 19 and is in sliding connection with the second barrel 19, second limiting rings 20 are respectively arranged on the inner side walls of the bottom ends of the first barrel 18, the second barrel 19 and the third barrel 23, fourth limiting rings 22 are respectively arranged on the inner side walls of the top ends of the second barrel 19 and the third barrel 23, third limiting rings 21 are respectively arranged on the outer side walls of the bottom ends of the second barrel 19 and the third barrel 23, the second limiting rings 20 and the fourth limiting rings 22 on the first barrel 18 can limit the third limiting rings 21 on the third barrel 19, the second limiting rings 20 and the fourth limiting rings 22 on the second barrel 19 can limit the third limiting rings 21 on the third barrel 23, and the top ends of the third barrel 23 are connected with an air outlet of the air compressor.

The detailed connection means are known in the art, and the following mainly introduces the working principle and process, specifically as follows:

in the utility model, the driving motor 11 and the external air compression device are connected with an external electric control system through wires, and the above devices and the connection modes are all in the prior art and are not repeated here.

According to the description, as shown in fig. 1-3, when the lower coal pipe 1 is blocked or coal in the lower coal pipe 1 needs to be cleaned, a driving motor 11 arranged on the side wall of the lower coal pipe 1 is started, when the output end of the driving motor 11 rotates, a plurality of threaded rods 5 are driven to move downwards in a plurality of second through holes formed in a fixed plate 3 by a transmission component, when the threaded rods 5 move downwards, a moving plate 4 connected with the bottom end of the threaded rods are driven to move downwards together, when the moving plate 4 moves downwards, a telescopic component connected with the moving plate 4 is driven to move together, the telescopic component moves downwards in a first through hole formed in the center of the fixed plate 3, the top end of the telescopic component is connected with an external air compression device, and compressed air is blown into the lower coal pipe 1 by the external air compression device to purge blocked coal dust; according to the utility model, the plurality of threaded rods 5 are driven to move downwards in the lower coal pipe 1 by the driving motor 11, so that the moving plate 4 and the telescopic assembly are driven to move downwards, the moving plate 4 scrapes the coal adhered to the side wall of the lower coal pipe 1, the external air compression device sweeps the coal by the telescopic assembly, no manual cleaning is needed, and the working efficiency is improved.

In one implementation possibility, when the output end of the driving motor 11 arranged on the outer side wall of the lower coal pipe 1 rotates, the third gear 10 connected with the driving motor is driven to rotate, the third gear 10 drives the second gear 9 connected with the driving motor in a meshed mode to rotate, the second gear 9 drives the connecting rod 7 connected with the driving motor and arranged on the limiting component to rotate, the limiting component can prevent the connecting rod 7 from axially displacing, the connecting rod 7 drives the first gear 6 connected with the bottom end of the connecting rod 7 to rotate, the first gear 6 drives the fifth gear 17 connected with the driving motor in a meshed mode to rotate, the fifth gear 17 drives the fourth gears 12 connected with the driving motor in a meshed mode to rotate, the fourth gears 12 drive the threaded rods 5 arranged in the hollow portion and connected with the threaded rods move in the lower coal pipe 1, the threaded rods 5 drive the moving plates 4 connected with the threaded rods to move, and further the driving motor 11 drives the moving plates 4 to move; the plurality of fourth gears 12 are connected with the fixed plate 3 through the plurality of plane bearings 13, and the fixed plate 3 is fixedly connected on the inner side wall of the lower coal pipe 1, so that the fifth gear 17 can drive the plurality of fourth gears 12 to rotate; the connecting ring 16 is fixedly arranged at the middle position above the fixed plate 3, the outer ring is connected with the inner ring of the bearing 15, the outer ring of the bearing 15 is connected with the inner ring of the fifth gear 17, and further the first gear 6 can drive the fifth gear 17 to rotate.

There is one possibility of implementation, and spacing subassembly includes stopper 8 and first spacing ring 14, and stopper 8 sets up on the inside wall of coal pipe 1 down, has seted up the third through-hole on the stopper 8, and connecting rod 7 runs through in the third through-hole and rotates with stopper 8 to be connected, and first spacing ring 14 sets up on the lateral wall of connecting rod 7, has seted up flutedly in the stopper 8, first spacing ring 14 sets up in the recess, and stopper 8 carries out spacingly to connecting rod 7 through first spacing ring 14, makes connecting rod 7 do not take place axial displacement.

When the moving plate 4 drives the first cylinder 18 connected with the moving plate to move downwards, the second cylinder 19 moves downwards together under the action of self gravity, and the second limiting ring 20 on the inner side wall of the bottom end of the first cylinder 18 can limit the third limiting ring 21 on the outer side wall of the bottom end of the second cylinder 19, so that the second cylinder 19 cannot be separated from the first cylinder 18, and the third limiting ring 21 on the outer side wall of the bottom end of the third cylinder 23 can be abutted to the fourth limiting ring 22 on the outer side wall of the top end of the second cylinder 19, so that the second cylinder 19 cannot be separated from the first cylinder 18; when the moving plate 4 drives the first cylinder 18 connected with the moving plate to move upwards, the second limiting ring 20 on the first cylinder 18 is abutted to the third limiting ring 21 on the second cylinder 19, and the second limiting ring 20 on the second cylinder 19 is abutted to the third limiting ring 21 on the first cylinder 18, so that the initial state is restored; through the air compression device that third barrel 23 top is connected, air compression device can be the roots's fan, comes to input compressed air in the third barrel 23, and compressed air reentrant second barrel 19 and first barrel 18 enter into down in the coal pipe 1 at last, sweeps the mediation to the coal, has improved the effect and the efficiency of clearance.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a clear stifled device for coal pipe down, includes coal pipe (1) and advances coal pipe (2), coal pipe (1) and advance coal pipe (2) intercommunication and be connected down, a serial communication port, just be located coal pipe (1) down and advance coal pipe (2) intercommunication department's top fixed plate (3), first through-hole has been seted up to the central point of fixed plate (3), be provided with telescopic assembly in the first through-hole, telescopic assembly and fixed plate (3) sliding connection, telescopic assembly's bottom intercommunication is connected with movable plate (4), a plurality of second through-holes have been seted up on fixed plate (3), a plurality of be provided with a plurality of threaded rods (5) in the second through-hole, a plurality of threaded rods (5) respectively with fixed plate (3) sliding connection and bottom and movable plate (4) fixed connection, be provided with drive assembly on fixed plate (3), be provided with driving motor (11) on coal pipe (1) down, drive assembly (11) can drive a plurality of threaded rods (4) through external compression device in can send into through a plurality of threaded rods (1) in the telescopic assembly.

2. The blockage removal device for a coal pipe according to claim 1, wherein the transmission assembly comprises a first gear (6), a connecting rod (7), a second gear (9), a third gear (10), a plurality of fourth gears (12), a plurality of plane bearings (13), a bearing (15), a connecting ring (16) and a fifth gear (17), wherein the connecting ring (16) is fixedly arranged at an intermediate position above the fixed plate (3), the telescopic assembly penetrates through the first through hole and the connecting ring (16), an inner ring of the bearing (15) is fixedly connected with an outer ring of the connecting ring (16), an inner ring of the fifth gear (17) is fixedly connected with an outer ring of the bearing (15), a plurality of plane bearings (13) are arranged at positions corresponding to the plurality of second through holes on the fixed plate (3), one side of the fourth gears (12) is connected with the plurality of plane bearings (13), the fourth gears (12) are meshed with the fifth gears (17), each fourth gear (12) is provided with a plurality of thread limiting rods (12) respectively, the plurality of thread limiting assemblies (7) are arranged on the inner ring of the fourth gears (12) and the hollow coal pipe, the limiting assembly can enable the connecting rod (7) not to axially move, one end, close to the fixed plate (3), of the connecting rod (7) is connected with the first gear (6), the other end is connected with the second gear (9), the first gear (6) is connected with the fifth gear (17) in a meshed mode, the third gear (10) is arranged at the output end of the driving motor (11), the driving motor (11) is arranged on the outer side wall of the lower coal pipe (1), through grooves (24) are formed in positions, corresponding to the third gear (10), of the lower coal pipe (1), the third gear (10) is connected with the second gear (9) in a meshed mode, and the driving motor (11) can drive a plurality of fourth gears (12) to rotate.

3. The blockage removing device for the coal pipe as claimed in claim 2, wherein the limiting assembly comprises a limiting block (8) and a first limiting ring (14), the limiting block (8) is arranged on the inner side wall of the coal pipe (1), a third through hole is formed in the limiting block (8), the connecting rod (7) penetrates through the third through hole and is rotationally connected with the limiting block (8), the first limiting ring (14) is arranged on the side wall of the connecting rod (7), a groove is formed in the limiting block (8), and the first limiting ring (14) is arranged in the groove.

4. The blockage removing device for the coal pipe according to claim 2, wherein the telescopic assembly comprises a first barrel (18), a second barrel (19) and a third barrel (23), the bottom end of the first barrel (18) is connected with the moving plate (4) in a communicating manner, the second barrel (19) is arranged in the first barrel (18) and is in sliding connection with the first barrel (18), the third barrel (23) is arranged in the second barrel (19) and is in sliding connection with the second barrel (19), the bottom end inner side walls of the first barrel (18), the second barrel (19) and the third barrel (23) are respectively provided with a second limiting ring (20), the top end inner side walls of the second barrel (19) and the third barrel (23) are respectively provided with a third limiting ring (21), the second limiting ring (20) and the fourth limiting ring (22) on the first barrel (18) can limit the third barrel (21), and the third barrel (23) can be limited by the third limiting ring (21) on the second barrel (19), and the third barrel (23) can be connected with the third barrel (23).