CN220361309U - Raw coal conveying device with self-lubrication function - Google Patents
Raw coal conveying device with self-lubrication function Download PDFInfo
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- CN220361309U CN220361309U CN202321887528.6U CN202321887528U CN220361309U CN 220361309 U CN220361309 U CN 220361309U CN 202321887528 U CN202321887528 U CN 202321887528U CN 220361309 U CN220361309 U CN 220361309U
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- belt
- belt roller
- roller
- coal
- raw coal
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- 239000003245 coal Substances 0.000 title claims abstract description 80
- 238000005461 lubrication Methods 0.000 title claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000000227 grinding Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 15
- 239000011148 porous material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000000843 powder Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Structure Of Belt Conveyors (AREA)
Abstract
The utility model relates to a raw coal conveying device with self-lubrication, which structurally comprises a transmission shaft and a belt roller sleeved on the transmission shaft, wherein the belt roller comprises an outer cylinder body, an inner cylinder body and an end face sealing plate, holes are formed in the outer cylinder body, grinding balls are filled in the belt roller, fine holes are formed in the inner cylinder body, and zigzag structural bodies are uniformly arranged on the surface of the transmission shaft along the axial direction. According to the scheme, the problem of belt deviation caused by clamping of a transmission device such as a belt pulley, a steering roller, a carrier roller and the like and bearing abrasion of the medium-speed mill feeder can be fundamentally solved, meanwhile, the problem of medium-speed mill coal breakage accident risk caused by accident shutdown of the medium-speed mill feeder due to belt deviation is solved, smooth operation of a subsequent working section is ensured, the service lives of the belt and the belt pulley of the medium-speed mill feeder are prolonged, and maintenance and replacement costs of the medium-speed mill feeder are reduced.
Description
Technical Field
The utility model relates to a raw coal conveying device, in particular to a raw coal conveying device with self-lubrication.
Background
In the powder making process of the coal injection system, raw coal is required to be conveyed by a raw coal conveying device, a belt transmission device in the conventional medium-speed coal mill feeder equipment adopts a strand roller, the raw coal falling on a coal feeder belt is very easy to clamp between the belt and the belt pulley/steering roller/carrier roller and other transmission devices, the raw coal clamping condition is more serious along with the extension of the working and running time of the coal feeder, and the belt is deviated under the long-time friction action of the raw coal; meanwhile, fine coal powder in raw coal falls into bearings of transmission devices such as belt pulleys/steering rollers/carrier rollers, the bearings are worn under the long-term friction action of the fine coal powder, and when the bearing wear is serious, the bearings are offset, so that the belt of the medium-speed coal mill is deviated. The belt off tracking can cause the accident shutdown of medium speed mill feeder to lead to medium speed mill to break the coal, produce huge accident risk, the shut down maintenance of medium speed mill feeder simultaneously leads to spouting coal pulverizing system's interruption, influences follow-up buggy jetting workshop section, makes blast furnace ironmaking workshop section coal ratio reduce, leads to blast furnace ironmaking cost increase.
At present, the problems of belt deflection of a medium-speed mill feeder are solved by adopting methods of adjusting a bearing roller set, installing a aligning roller set and adjusting the positions of a driving roller and a direction changing roller, the problems of belt deflection are not fundamentally solved by adopting a deflection adjusting means only after the belt is deflected, the problems of belt deflection cannot be prevented in advance, the problems of clamping materials of a belt pulley/a steering roller/a roller and other transmission devices are also not solved, the problems of belt deflection are solved by using the method for a long time, the belt can be damaged due to long-term friction of raw coal, the service life of the belt is reduced, meanwhile, the problems of bearing abrasion caused by fine coal dropping cannot be solved by the method, the halt maintenance and overhaul of the medium-speed mill feeder are still required, the follow-up working section is influenced, and the production cost is increased.
Disclosure of Invention
The utility model aims to provide a raw coal conveying device with self-lubrication, which solves the problems that the existing raw coal conveying device cannot prevent a belt from deviating in advance and a bearing is easy to wear.
The utility model is realized in the following way: the utility model provides a take self-lubricating raw coal conveyor, includes the transmission shaft and cup joints at the epaxial belt cylinder of transmission, belt cylinder includes outer barrel, interior barrel and terminal surface shrouding open there is the hole on the outer barrel the belt cylinder intussuseption is filled with the grinding ball open on the interior barrel has the pore the surface of transmission shaft evenly is equipped with zigzag structure along the axial.
At least one radial partition plate perpendicular to the central shaft of the belt roller is arranged in the belt roller, the radial partition plate uniformly separates the inner cavity of the belt roller along the central shaft direction, and through holes are formed in the radial partition plate.
At least two transverse partition plates are uniformly arranged in the belt roller around the central shaft of the belt roller, the inner cavities of the belt roller are uniformly separated around the central shaft by the transverse partition plates, and through holes are formed in the transverse partition plates.
The outer side of the end face sealing plate is provided with a coal discharging pipe which is communicated with the inner cavity of the belt roller, and the coal discharging pipe is inclined from the outer ring to the inner ring of the end face sealing plate.
The coal discharge pipes are in a plurality, and the outlets of the plurality of coal discharge pipes are arranged in a crossed and staggered mode.
The utility model relates to a raw coal conveying device with self-lubrication, which is characterized in that a belt roller is used for installing a belt, a transmission shaft is used for installing the belt roller, when raw coal on the belt falls onto the belt roller, the raw coal enters an inner cavity of the belt roller through a hole on an outer cylinder body, grinding balls in the inner cavity of the belt roller continuously roll and collide in the inner cavity of the belt roller under the rotation of the belt roller, the raw coal is ground into fine coal powder under the collision and grinding action of the grinding balls, the fine coal powder enters gaps of a zigzag structural body on the transmission shaft through small holes on an inner cylinder body, and the fine coal powder is filled in the gaps, so that the effect of a self-lubrication bearing is achieved.
According to the scheme, the problem of belt deviation caused by clamping of a transmission device such as a belt pulley, a steering roller, a carrier roller and the like and bearing abrasion of the medium-speed mill feeder can be fundamentally solved, meanwhile, the problem of medium-speed mill coal breakage accident risk caused by accident shutdown of the medium-speed mill feeder due to belt deviation is solved, smooth operation of a subsequent working section is ensured, the service lives of the belt and the belt pulley of the medium-speed mill feeder are prolonged, and maintenance and replacement costs of the medium-speed mill feeder are reduced.
Drawings
Fig. 1 is a structural diagram of the present utility model.
Fig. 2 is a view in the A-A direction of fig. 1.
Fig. 3 is a B-B view of fig. 1.
In the figure: 1. a transmission shaft; 2. a belt roller; 3. grinding balls; 4. a coal discharge pipe; 1-1, a zigzag structure; 2-1, an outer cylinder; 2-2, an inner cylinder body; 2-3, end face sealing plates; 2-4, radial partition plates; 2-5, transverse partition boards.
Detailed Description
As shown in fig. 1, 2 and 3, the utility model comprises a transmission shaft 1 and a belt roller 2 sleeved on the transmission shaft 1, wherein the belt roller 2 comprises an outer cylinder body 2-1, an inner cylinder body 2-2 and an end face sealing plate 2-3, holes are formed in the outer cylinder body 2-1, grinding balls 3 are filled in the belt roller 2, fine holes are formed in the inner cylinder body 2-2, and a zigzag structure body 1-1 is uniformly arranged on the surface of the transmission shaft 1 along the axial direction.
The transmission shaft 1 is used for installing the belt roller 2, the belt roller 2 is used for installing a belt, the inner cylinder body 2-2 of the belt roller 2 is sleeved on the transmission shaft 1, the aperture of a hole on the outer cylinder body 2-1 of the belt roller 2 is larger, and the aperture of a pore on the inner cylinder body 2-2 is smaller. Raw coal blocks falling on the outer cylinder 2-1 enter the inner cavity of the belt roller 2 through holes, under the grinding action of the grinding balls 3, the raw coal blocks become fine coal powder, the fine coal powder enters gaps of the zigzag structural body 1-1 on the transmission shaft 1 through fine holes on the inner cylinder 2-2, the fine coal powder plays a role of balls on the transmission shaft 1 and can also serve as a lubricant of a self-lubricating bearing, the friction coefficient in the transmission process is reduced, the rotation is more stable, and the running energy consumption of equipment is reduced. Meanwhile, the abrasion of the transmission shaft 1 is reduced, the service life is prolonged, and the maintenance cost is reduced.
A plurality of annular zigzag structural bodies 1-1 are uniformly distributed on the transmission shaft 1 along the length direction, and a certain gap is formed between every two adjacent zigzag structural bodies 1-1 so as to accommodate fine coal dust.
At least one radial partition plate 2-4 perpendicular to the central axis of the belt roller 2 is arranged in the belt roller 2, the radial partition plate 2-4 uniformly separates the inner cavity of the belt roller 2 along the central axis direction, and the radial partition plate 2-4 is provided with through holes.
At least two transverse partition plates 2-5 are uniformly arranged in the belt roller 2 around the central shaft of the belt roller 2, the transverse partition plates 2-5 uniformly divide the inner cavity of the belt roller 2 around the central shaft, and through holes are formed in the transverse partition plates 2-5.
The transverse bulkheads 2-5 may have three, four or more, the number of which is determined according to the diameter of the belt drum 2, and the larger the diameter of the belt drum 2, the larger the number of transverse bulkheads 2-5.
Because the length of the belt roller 2 is longer, in order to ensure that the grinding balls 3 are distributed and impacted more uniformly in the inner cavity of the belt roller 2, a radial partition plate 2-4 and a transverse partition plate 2-5 are added in the belt roller to divide the inner cavity of the belt roller 2 into a plurality of grinding chambers. Meanwhile, as the raw coal falling from each position of the belt roller 2 is random, the falling amount of each grinding chamber in the inner cavity of the belt roller 2 is different, and a large number of through holes are arranged on the radial partition plate 2-4 and the transverse partition plate 2-5 in order to ensure that the raw coal amount in each grinding chamber is not different, so that the raw coal can be conveniently communicated, and the raw coal can be distributed more uniformly in the inner cavity of the belt roller 2.
The grinding ball 3 is a nonmetal solid small ball, the grinding ball 3 rotates along with the belt roller 2 in the inner cavity of the belt roller 2, the grinding ball 3 impacts the periphery of a grinding chamber where the grinding ball 3 is located, and the impact has three functions: firstly, larger raw coal blocks which exist on an outer cylinder body 2-1 of a belt roller 2 and cannot pass through holes are shaken off, so that the raw coal blocks are prevented from staying between the belt roller 2 and a belt to cause the deviation of the belt; secondly, the inner cylinder body 2-2 of the belt roller 2 is impacted, so that the ground fine coal powder can be promoted to enter a gap between the inner cylinder body 2-2 and the transmission shaft 1, and the effect of self-lubricating the bearing can be better achieved; thirdly, the impact on the radial partition plates 2-4 and the transverse partition plates 2-5 not only can shake off the raw coal hung on the partition plates, but also can promote the intercommunication of the raw coal among the grinding chambers.
The outer side of the end face sealing plate 2-3 is provided with a coal discharging pipe 4, the coal discharging pipe 4 is communicated with the inner cavity of the belt roller 2, and the coal discharging pipe 4 is inclined from the outer ring to the inner ring of the end face sealing plate 2-3.
If too much raw coal is in the grinding chamber, when the coal discharge pipe 4 communicating with the grinding chamber is rotated to the upper position, raw coal exceeding the height of the root of the coal discharge pipe 4 is discharged obliquely downward through the coal discharge pipe 4.
The coal discharging pipes 4 are shared, each grinding chamber is at least communicated with one coal discharging pipe 4 and is used for discharging redundant raw coal in each grinding chamber, and the outlets of the plurality of coal discharging pipes 4 are arranged in a staggered manner in a crossed mode so as to prevent the discharged raw coal from entering other grinding chambers through the coal discharging pipes 4.
Wherein the grinding balls 3 cannot pass through the coal discharge pipe 4, so that the loss of the grinding balls 3 is prevented.
According to the scheme, the problem of belt deviation caused by clamping of a transmission device such as a belt pulley, a steering roller, a carrier roller and the like and bearing abrasion of the medium-speed mill feeder can be fundamentally solved, meanwhile, the problem of medium-speed mill coal breakage accident risk caused by accident shutdown of the medium-speed mill feeder due to belt deviation is solved, smooth operation of a subsequent working section is ensured, the service lives of the belt and the belt pulley of the medium-speed mill feeder are prolonged, and maintenance and replacement costs of the medium-speed mill feeder are reduced.
Claims (5)
1. The utility model provides a take self-lubricating raw coal conveyor, its characterized in that includes the transmission shaft and cup joints at the epaxial belt cylinder of transmission, belt cylinder includes outer barrel, interior barrel and terminal surface shrouding open there is the hole on the outer barrel the belt cylinder intussuseption is filled with the grinding ball open on the interior barrel have the pore the surface of transmission shaft evenly is equipped with zigzag structure along the axial.
2. The self-lubricating raw coal conveying device according to claim 1, wherein at least one radial partition plate perpendicular to the central axis of the belt roller is arranged in the belt roller, the radial partition plate uniformly separates the inner cavity of the belt roller along the central axis direction, and through holes are formed in the radial partition plate.
3. The self-lubricating raw coal conveying device according to claim 1, wherein at least two transverse partition plates are uniformly arranged in the belt roller around a central shaft of the belt roller, the inner cavity of the belt roller is uniformly separated by the transverse partition plates around the central shaft, and through holes are formed in the transverse partition plates.
4. The raw coal conveying device with self-lubrication according to claim 1, wherein a coal discharging pipe is arranged on the outer side of the end face sealing plate, the coal discharging pipe is communicated with the inner cavity of the belt roller, and the coal discharging pipe is inclined from the outer ring to the inner ring of the end face sealing plate.
5. The self-lubricating raw coal conveying device according to claim 4, wherein a plurality of coal discharging pipes are arranged, and outlets of the plurality of coal discharging pipes are staggered in a crossing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321887528.6U CN220361309U (en) | 2023-07-18 | 2023-07-18 | Raw coal conveying device with self-lubrication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321887528.6U CN220361309U (en) | 2023-07-18 | 2023-07-18 | Raw coal conveying device with self-lubrication function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220361309U true CN220361309U (en) | 2024-01-19 |
Family
ID=89517829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321887528.6U Active CN220361309U (en) | 2023-07-18 | 2023-07-18 | Raw coal conveying device with self-lubrication function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220361309U (en) |
-
2023
- 2023-07-18 CN CN202321887528.6U patent/CN220361309U/en active Active
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