An integrated storage and transportation device for conveying dry slag and stone coal

Abstract

The present invention relates to an integrated storage and transportation device for conveying dry slag and pebble coal, comprising a steel frame, a loading workshop and a pebble coal unloading room, a slag bin, a pebble coal bin and a dry slag machine located above the loading workshop are arranged on the steel frame, a slag crusher located below the output end of the dry slag machine is arranged at the inlet of the slag bin, a negative pressure dust suction device is arranged outside the loading workshop, the slag bin outlet is connected to a double-shaft mixer and a bulk loader in sequence, a dust suction hood is arranged in the loading workshop, the outlet of the bulk loader, the outlet of the pebble coal bin and the dust suction port of the negative pressure dust suction device are arranged in the dust suction hood, and a bucket elevator connected to the feeding port of the pebble coal bin is arranged in the pebble coal unloading room. Compared with the prior art, the present invention has the advantages of small footprint, low construction cost and maintenance cost and convenient integrated management.

Description

Technical Field

[0001] The invention relates to a thermal power plant equipment, in particular to an integrated storage and transportation device for conveying dry slag and stone coal. Background Art

[0002] During the operation of the coal mill in a thermal power plant, pebble coal will be discharged from the bottom. Pebble coal is unground pyrite and the gangue and coal particles carried by it. In order to ensure the normal progress of the production process, the pebble coal in the coal mill needs to be discharged. When the pebble coal in the coal mill reaches the discharge volume, it needs to be cleaned in time. When the ground coal powder is sent to the pulverized coal furnace for thermal power generation, dry slag will be produced at the bottom of the pulverized coal furnace, which also needs to be cleaned in time.

[0003] Thermal power plants usually have special furnace bottom dry slag bins and pebble coal bins to store dry slag and pebble coal respectively. The furnace bottom dry slag bin and pebble coal bin are supported in the air by steel frames. The pebble coal and dry slag are sent to the pebble coal bin and furnace bottom dry slag bin respectively through lifting devices. When the unloading truck is driven to the bottom of the pebble coal bin and the furnace bottom dry slag bin, the unloading is completed by gravity.

[0004] At present, thermal power plants usually set up the dry slag bin at the bottom of the furnace and the stone coal bin separately, so they need to set up independent steel frames and unloading rooms respectively, which occupies a large space and the unloading truck transportation points are scattered, resulting in high land costs, scattered maintenance and management, and increased environmental protection investment. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide an integrated storage and transportation device for conveying dry slag and stone coal, which occupies a small area, has low construction and maintenance costs, and is easy to manage in an integrated manner.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An integrated storage and transportation device for conveying dry slag and pebble coal, comprising a steel frame, a loading workshop and a pebble coal unloading room, wherein the steel frame is provided with a slag bin, a pebble coal bin and a dry slag machine located above the loading workshop, a slag crusher located below the output end of the dry slag machine is provided at the inlet of the slag bin, a negative pressure dust suction device is provided outside the loading workshop, the outlet of the slag bin is connected to a double-shaft mixer and a bulk loader in sequence, a dust suction hood is provided in the loading workshop, the outlet of the bulk loader, the outlet of the pebble coal bin and the dust suction port of the negative pressure dust suction device are arranged in the dust suction hood, a bucket elevator connected to the feeding port of the pebble coal bin is provided in the pebble coal unloading room, the device further comprises a track and an electric hoist movably arranged on the track, and the track is arranged on the steel frame through a support frame;

[0008] The slag bin and the pebble coal bin share a common steel frame, negative pressure dust suction equipment, loading room and electric hoist, and only one set of steel frame needs to be built, which reduces the amount of steel structure, saves costs, and facilitates integrated management; only one set of negative pressure dust suction equipment is needed to meet the dust removal and deodorization needs in the loading room and the pebble coal unloading room, which is beneficial to environmental protection, and the bulk loader does not need to be equipped with a separate dust removal equipment; after the slag truck is parked in the loading room, it can unload slag or pebble coal without moving the truck, which is easy to operate and saves land space; only one electric hoist is needed to meet the maintenance and lifting needs of the slag bin and the pebble coal bin roof equipment.

[0009] Furthermore, the support frame is provided with a ceiling having a shielding function.

[0010] Furthermore, the steel frame includes a first steel column, a second steel column, a third steel column and an installation platform, the slag bin is arranged on the first steel column, the installation platform is horizontally arranged on the first steel column and the third steel column, the stone coal bin is arranged on the installation platform, and the dry slag machine is arranged on the second steel column, which are respectively connected to the slag bin and the pulverized coal furnace.

[0011] Furthermore, due to the heavy weight of the slag bin, the first steel column includes an outer tube, an inner column is coaxially arranged inside the outer tube, and a plurality of reinforcing ribs are arranged between the outer tube and the inner column along the axial direction of the inner column, thereby reducing the amount of steel used while ensuring the rigidity of the first steel column.

[0012] Furthermore, a vibrator is provided on the wall of the slag bin, which is conducive to the dry slag falling from the slag bin to avoid accumulation and blockage.

[0013] Furthermore, a bag dust collector is provided on the steel frame near the slag crusher for removing dust generated when the dry slag falls into the slag bin after being crushed by the slag crusher.

[0014] Furthermore, a control room is provided on the steel frame, a controller is provided in the control room, pneumatic gates are provided at the discharge ports of the slag bin and the gravel coal bin, and the pneumatic gates, slag crusher, slag dryer, bucket elevator and negative pressure dust collection equipment are all connected to the controller, so as to facilitate unified control by the operator.

[0015] Furthermore, the loading room and the pebble coal unloading room are provided with rolling shutter doors, and forklifts and slag trucks can enter the loading room and the pebble coal unloading room respectively through the rolling shutter doors.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention is provided with a loading workshop and a pebble coal unloading room. A slag bunker and a pebble coal bunker located above the loading workshop are provided on a set of steel frames, thereby reducing the use of steel structures and saving costs. A negative pressure dust suction device is provided on the outside of the ceiling of the loading workshop, and a dust suction hood is provided on the inside of the ceiling of the loading workshop. The outlet of the bulk loader, the outlet of the pebble coal bunker and the dust suction port of the negative pressure dust suction device are provided in the dust suction hood. Only one negative pressure dust suction device is needed to meet the dust removal and deodorization requirements in the loading workshop and the pebble coal unloading room, which is also beneficial to environmental protection. A track and an electric hoist provided on the track are also provided on the steel frame. Only one electric hoist is needed to meet the maintenance and lifting requirements of the slag bunker and the pebble coal bunker roof equipment. Slag unloading or pebble coal unloading can be completed in one loading workshop, thereby saving ground space. The structure is simple, the manufacturing cost and maintenance cost are low, and the integrated management of the slag bunker, the pebble coal bunker and vehicles is convenient, which is convenient for road layout.

[0018] (2) The first steel column of the present invention comprises an outer tube, an inner column is coaxially arranged inside the outer tube, and a plurality of reinforcing ribs are arranged between the outer tube and the inner column along the axial direction of the inner column. Since the slag bin is heavy, the amount of steel used is reduced while ensuring the rigidity of the first steel column;

[0019] (3) A vibrator is provided on the wall of the slag bin of the present invention, which is conducive to the dry slag falling from the slag bin to avoid accumulation and blockage;

[0020] (4) A bag dust collector is provided on the steel frame of the present invention near the slag crusher to remove dust generated when dry slag falls from the dry slag machine into the slag crusher, which is beneficial to environmental protection;

[0021] (5) A control room is provided on the steel frame of the present invention, and a controller is provided in the control room. The discharge ports of the slag bin and the gravel coal bin are provided with pneumatic gates. The pneumatic gates, slag crusher, slag dryer, bucket elevator and negative pressure dust collection equipment are all connected to the controller, so as to facilitate unified control by the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the present invention;

[0023] Figure 2 It is a right side view of the present invention;

[0024] Figure 3 A top view of the present invention;

[0025] Figure 4 is a structural schematic diagram of the first steel column;

[0026] Description of the numbers in the figure:

[0027] 1. Slag bin, 2. Negative pressure dust collection equipment, 3. Stone coal bin, 4. Double-shaft mixer, 5. Bulk loader, 6. Pneumatic plug-in door, 7. Loading room, 8. Electric hoist, 9. Stone coal unloading room, 10. Bucket elevator, 11. First steel column, 12. Track, 13. Ceiling, 14. Dust hood, 15. Dry slag machine, 16. Slag loading car, 17. Bag dust collector, 18. Second steel column, 19. Third steel column, 20. Vibrator, 21. Support frame, 22. Installation platform, 23. Control room, 24. Slag crusher, 25. Rolling door, 111. Outer pipe, 112. Reinforcement ribs, 113. Inner column. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0029] An integrated storage and transportation device for conveying dry slag and stone coal, such as Figure 1 , Figure 2 and Figure 3 , including a steel frame, a loading workshop 7 and a pebble coal unloading room 9, a slag bin 1, a pebble coal bin 3 and a slag dryer 15 are arranged on the steel frame, a slag crusher 24 located below the output end of the slag dryer 15 is arranged at the inlet of the slag bin 1, a negative pressure dust suction device 2 is arranged on the outside of the ceiling of the loading workshop 7, the outlet of the slag bin 1 is connected to the double-shaft mixer 4 and the bulk loader 5 in sequence, a dust suction hood 14 is arranged on the inside of the ceiling of the loading workshop 7, the outlet of the bulk loader 5, the outlet of the pebble coal bin 3 and the dust suction port of the negative pressure dust suction device 2 are arranged in the dust suction hood 14, a bucket elevator 10 connected to the feeding port of the pebble coal bin 3 is arranged in the pebble coal unloading room 9, the device also includes a track 12 and an electric hoist 8 movably arranged on the track 12, and the track 12 is arranged on the steel frame through a support frame 21;

[0030] A ceiling 13 having a shielding function is provided on the support frame 21 .

[0031] The steel frame includes a first steel column 11, a second steel column 18, a third steel column 19 and an installation platform 22. The slag bin 1 is arranged on the first steel column 11, the installation platform 22 is horizontally arranged on the first steel column 11 and the third steel column 19, the pebble coal bin 3 is arranged on the installation platform 22, and the dry slag machine 15 is arranged on the second steel column 18, which are respectively connected to the slag bin 1 and the pulverized coal furnace.

[0032] like Figure 4 The first steel column 11 includes an outer tube 111, an inner column 113 is coaxially arranged inside the outer tube 111, and a plurality of reinforcing ribs 112 are arranged between the outer tube 111 and the inner column 113 along the axial direction of the inner column 113, so as to reduce the amount of steel while ensuring the rigidity of the first steel column 11.

[0033] A rapper 20 is provided on the wall of the slag bin 1, which is conducive to the dry slag falling from the slag bin 1 to avoid accumulation and blockage.

[0034] A bag dust collector 17 is provided on the steel frame near the slag crusher 24 to remove dust generated when the dry slag falls into the slag bin 1 after being crushed by the slag crusher 24 .

[0035] A control room 23 is provided on the steel frame, and a controller is provided in the control room 23. The discharge ports of the slag bin 1 and the gravel coal bin 3 are provided with pneumatic gates 6. The pneumatic gates 6, the slag crusher 24, the slag dryer 15, the bucket elevator 10 and the negative pressure dust collection equipment 2 are all connected to the controller for unified control by the operator.

[0036] Rolling shutter doors 25 are provided on the loading room 7 and the pebble coal unloading room 9, and a forklift and a slag loading vehicle 16 can enter the loading room 7 and the pebble coal unloading room 9 respectively through the rolling shutter doors 25.

[0037] The dry slag produced in the pulverized coal furnace is transported to the slag crusher 24 through the dry slag machine 15 for crushing. The crushed dry slag is stored in the slag bin 1. The bucket elevator 10 transports the pebble coal to the pebble coal bin 3. The controller controls the dropping of the slag bin 1 and the pebble coal bin 3 through the pneumatic gate 6.

[0038] The slag loading vehicle 16 enters the loading room 7. When dry slag unloading is required, the controller controls the pneumatic gate 6 on the slag bin 1 to open. The dry slag in the slag bin 1 is humidified and stirred by the double-shaft mixer 4, and then falls onto the slag loading vehicle 16 from the outlet of the bulk loader 5. When pebble coal unloading is required, the controller controls the pneumatic gate 6 on the pebble coal bin 3 to open, and the pebble coal falls onto the slag loading vehicle 16 from the outlet of the pebble coal bin 3. At the same time, the controller controls the negative pressure dust collection device 2 to start, and the dust in the loading room 7 and the pebble coal unloading room 9 enters the dust collection port of the negative pressure dust collection device 2 through the dust collection hood 14.

[0039] The present embodiment proposes an integrated storage and transportation device for conveying dry slag and pebble coal. The slag bin 1 and the pebble coal bin 3 share a steel frame, a negative pressure dust suction device 2, a loading room 7 and an electric hoist 8. Only one set of steel frame needs to be built, which reduces the amount of steel structure, saves costs, and facilitates integrated management. Only one set of negative pressure dust suction equipment 2 is needed to meet the dust removal and deodorization requirements in the loading room 7 and the pebble coal unloading room 9, which is also beneficial to environmental protection. The bulk loader 5 does not need to be equipped with a separate dust removal device. After the slag loading vehicle 16 is parked in the loading room 7, it can unload both slag and pebble coal without moving the vehicle, which is easy to operate and saves land space. Only one electric hoist 8 is needed to meet the maintenance and lifting requirements of the slag bin 1 and the pebble coal bin 3 top equipment.

[0040] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An integrated storage and transportation device for conveying dry slag and stone coal, characterized in that: It comprises a steel frame, a loading workshop (7) and a pebble coal unloading room (9), wherein the steel frame is provided with a slag bin (1) located above the loading workshop (7), a pebble coal bin (3) and a slag dryer (15), wherein the inlet of the slag bin (1) is provided with a slag crusher (24) located below the output end of the slag dryer (15), wherein a negative pressure dust suction device (2) is provided outside the loading workshop (7), wherein the outlet of the slag bin (1) is connected to a double-shaft mixer (4) and a bulk loader (5) in sequence, wherein a dust suction hood (14) is provided inside the loading workshop (7), wherein the outlet of the bulk loader (5), the outlet of the pebble coal bin (3) and the dust suction port of the negative pressure dust suction device (2) are arranged inside the dust suction hood (14), and wherein a bucket elevator (10) connected to the feed port of the pebble coal bin (3) is provided inside the pebble coal unloading room (9); It also includes a track (12) and an electric hoist (8) movably arranged on the track (12), wherein the track (12) is arranged on a steel frame via a support frame (21), and a ceiling (13) is arranged on the support frame (21); The steel frame comprises a first steel column (11), a second steel column (18), a third steel column (19) and a mounting platform (22); the slag bin (1) is arranged on the first steel column (11); the mounting platform (22) is horizontally arranged on the first steel column (11) and the third steel column (19); the pebble coal bin (3) is arranged on the mounting platform (22); and the slag dryer (15) is arranged on the second steel column (18); The first steel column (11) comprises an outer tube (111), an inner column (113) is arranged inside the outer tube (111), and a reinforcing rib (112) is arranged between the outer tube (111) and the inner column (113).

2. An integrated storage and transportation device for conveying dry slag and stone coal according to claim 1, characterized in that: The discharge ports of the slag bin (1) and the gravel coal bin (3) are provided with pneumatic plug-in doors (6).

3. The integrated storage and transportation device for conveying dry slag and stone coal according to claim 1, characterized in that: A vibrator (20) is provided on the wall of the slag bin (1).

4. The integrated storage and transportation device for conveying dry slag and stone coal according to claim 1, characterized in that: The steel frame is provided with a bag dust collector (17) close to the slag crusher (24).

5. The integrated storage and transportation device for conveying dry slag and stone coal according to claim 1, characterized in that: A control room (23) is provided on the steel frame.

6. The integrated storage and transportation device for conveying dry slag and stone coal according to claim 1, characterized in that: The loading room (7) and the stone coal unloading room (9) are provided with rolling shutter doors (25).

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