CN213000326U - Coal mill air blocking device - Google Patents
Coal mill air blocking device Download PDFInfo
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- CN213000326U CN213000326U CN202021037873.7U CN202021037873U CN213000326U CN 213000326 U CN213000326 U CN 213000326U CN 202021037873 U CN202021037873 U CN 202021037873U CN 213000326 U CN213000326 U CN 213000326U
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- reinforcing plate
- wind
- deflector
- plate
- coal mill
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Abstract
The utility model relates to a coal pulverizer wind blocks up device belongs to the technical field of coal pulverizer, and its technical scheme main points are coal pulverizer wind blocks up device, including moving the wind ring, move the even interval of wind ring and be provided with a plurality of deflectors, be provided with the reinforcing plate between the adjacent deflector, the upper surface of deflector is arranged in to the reinforcing plate and links to each other with the deflector is fixed, reaches the purpose that improves the effect of blowing.
Description
Technical Field
The utility model relates to a technical field of coal pulverizer especially relates to coal pulverizer wind blocking device.
Background
The movable air ring is also called an impeller, is one of important components of a coal mill system, and is generally arranged on a bowl device inside a coal mill. Smaller and lighter pulverized coal particles on the outer edge of the grinding bowl are carried upwards by airflow, and heavier and difficultly ground foreign impurities fall into a slag discharging box of the coal mill through a movable air ring device and are discharged out of the coal mill. The higher the wind speed of the hot air at the movable wind ring device is, the less sundries (mainly stone coal) fall into the slag discharging box of the coal mill.
The prior Chinese patent with the reference publication number of CN202909812U discloses a coal mill wing-shaped movable air ring, which comprises a plurality of movable air ring segments, wherein each movable air ring segment comprises an adjustable cover which is connected with an outer side plate through a fastener; an airfoil plate is arranged on the inner side of the adjustable cover, the airfoil plate is welded with the fixed plate, and the upper plane of the airfoil plate is parallel to the upper plane of the fixed plate; there is the deflector between aerofoil board and the fixed plate, deflector and aerofoil board biplane contained angle are 45, and this aerofoil board and deflector contained angle are 45, and the aerofoil board not only makes the motion direction of the hot-air who gets into the coal pulverizer change into perpendicularly upwards, can also effectively reduce the turbulent flow of moving wind ring device department, can not cause the increase of pressure difference and coal pulverizer motor current about the grinding bowl when reducing the coal pulverizer stone coal volume.
The above prior art solutions have the following drawbacks: this coal pulverizer wing section moves wind ring is at the in-process that uses, and the buggy and the garrulous waste rock of bottom cause wearing and tearing to aerofoil plate and deflector for the deflector shortens or breaks, influences the effect of blowing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coal pulverizer wind blocks up device, through set up the reinforcing plate on the deflector of moving the wind ring, the reinforcing plate reinforcing improves the stability of deflector in the use to the fixing of deflector to reach the purpose that improves the effect of blowing.
The technical purpose of the utility model is realized through following technical scheme:
the utility model provides a coal pulverizer wind stifled device, includes moves the wind ring, moves the even interval of wind ring and is provided with a plurality of deflectors, be provided with the reinforcing plate between the adjacent deflector, the upper surface of deflector is arranged in to the reinforcing plate and is fixed continuous with the deflector.
Through above-mentioned technical scheme, set up the reinforcing plate between the adjacent deflector of moving the wind ring, the reinforcing plate reinforcing deflector is in the stability of use, prevents that the turn-up's the condition from appearing in the deflector, and the reinforcing plate reduces the space between the adjacent deflector simultaneously, strengthens wind-force, relative ratio prior art, the utility model discloses reached the purpose that improves the effect of blowing.
The utility model discloses further set up to: the two sides of the reinforcing plate are arranged in a curved surface shape.
Through above-mentioned technical scheme, the both sides of reinforcing plate are the curved surface form setting, and the cambered surface end of moving the wind ring is arranged in to the reinforcing plate, and the convenience when the reinforcing plate is installed is strengthened, improves the result of use of reinforcing plate.
The utility model discloses further set up to: the cross section of the reinforcing plate is in a trapezoidal design.
Through above-mentioned technical scheme, set up the cross-section of reinforcing plate into trapezoidal for the wind that blows from the bottom is carried along the inclined plane of reinforcing plate upwards, improves the wind-force and carries the effect, strengthens the result of use of reinforcing plate.
The utility model discloses further set up to: the width of the bottom surface of the reinforcing plate is one third of the width of the guide plate.
Through above-mentioned technical scheme, the reinforcing plate erects between adjacent deflector, and wind passes from the gap between reinforcing plate and the deflector, and when the width broad of reinforcing plate, the gap between reinforcing plate and the deflector reduces, and the amount of wind that passes from the bottom reduces, and wind-force reduces, and when the width of reinforcing plate is narrower, the gap increase between reinforcing plate and the deflector leads to wind-force not enough, and to sum up, sets up the bottom surface of reinforcing plate for the third of deflector width is the best.
The utility model discloses further set up to: the thickness of the reinforcing plate is 2-5 CM.
Through above-mentioned technical scheme, the reinforcing plate sets firmly in the top of deflector and connects adjacent deflector, sets up the thickness of reinforcing plate to 2-5CM, reduces the weight of reinforcing plate, improves the removal convenience of moving the wind ring.
The utility model discloses further set up to: the reinforcing plate is arranged in the middle of the guide plate.
Through above-mentioned technical scheme, arrange the reinforcing plate in the intermediate position department of deflector for wind passes from the both sides of reinforcing plate, moves the stability in use of wind ring when improving to blow.
To sum up, the utility model discloses a beneficial technological effect does:
1. the reinforcing plates are arranged between the adjacent guide plates and are arranged on the upper surfaces of the guide plates and fixedly connected with the guide plates, so that the reinforcing plates enhance the stability of the guide plates in the use process and prevent the guide plates from curling, and simultaneously, the reinforcing plates reduce the gaps between the adjacent guide plates, enhance the wind power and improve the blowing effect;
2. by setting the width of the bottom surface of the reinforcing plate to be one third of the width of the guide plate, when the reinforcing plate is wider, the gap between the reinforcing plate and the guide plate is reduced, the air quantity passing through the bottom is reduced, the wind power is reduced, and when the reinforcing plate is narrower, the gap between the reinforcing plate and the guide plate is increased, so that the wind power is insufficient, and in conclusion, the using effect of the reinforcing plate is improved;
3. the thickness of the reinforcing plate is set to be 2-5CM, the reinforcing plate is fixedly arranged above the guide plates and connects the adjacent guide plates, the weight of the reinforcing plate is reduced, and the moving convenience of the movable air ring is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the moving air ring of the present embodiment.
Reference numerals: 1. a movable wind ring; 11. a guide plate; 2. a reinforcing plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a coal mill wind blocking device, including moving wind ring 1, moving wind ring 1 is provided with a plurality of deflectors 11 at even interval, be provided with reinforcing plate 2 between the adjacent deflector 11, reinforcing plate 2 is arranged in the upper surface of deflector 11 and is fixed continuous with deflector 11, reinforcing plate 2 reinforcing deflector 11 is at the stability of use, prevent that the condition of turn-up from appearing in deflector 11, reinforcing plate 2 reduces the space between the adjacent deflector 11 simultaneously, strengthen wind-force, compare prior art, this embodiment has reached the purpose that improves the effect of blowing.
As shown in fig. 1, two sides of the reinforcing plate 2 are arranged in a curved surface shape, and the reinforcing plate 2 is arranged at the arc end of the movable air ring 1, so that the convenience of the reinforcing plate 2 in installation is enhanced, and the use effect of the reinforcing plate 2 is improved; the cross-section of reinforcing plate 2 is trapezoidal design for the wind that blows from the bottom is carried along the inclined plane of reinforcing plate 2 upwards, improves wind-force and carries the effect, strengthens the result of use of reinforcing plate 2.
As shown in fig. 1, the width of the bottom surface of the reinforcing plate 2 is one third of the width of the guide plate 11, the reinforcing plate 2 is disposed between the adjacent guide plates 11, the wind passes through the gap between the reinforcing plate 2 and the guide plate 11, when the width of the reinforcing plate 2 is wide, the gap between the reinforcing plate 2 and the guide plate 11 is reduced, the amount of wind passing through the bottom is reduced, the wind power is reduced, when the width of the reinforcing plate 2 is narrow, the gap between the reinforcing plate 2 and the guide plate 11 is increased, and the wind power is insufficient, and in sum, it is preferable to set the bottom surface of the reinforcing plate 2 to be one third of the width of the guide plate 11. The reinforcing plate 2 is arranged in the middle of the guide plate 11, so that wind passes through the two sides of the reinforcing plate 2, and the use stability of the movable wind ring 1 during wind blowing is improved.
As shown in fig. 1, the thickness of the reinforcing plate 2 is 2-5CM, the thickness of the reinforcing plate 2 is preferably 3CM in this embodiment, and the reinforcing plate 2 is fixed above the guide plate 11, so that the weight of the reinforcing plate 2 is reduced, and the moving convenience of the movable air ring 1 is improved.
The implementation principle of the embodiment is as follows: when the movable wind ring 1 is used, the reinforcing plate 2 is arranged at the middle position of the adjacent guide plate 11 and fixed, so that the fixing effect of the reinforcing plate 2 on the guide plate 11 is improved, the condition that the guide plate 11 is curled is prevented, and the wind force effect is improved; the lower surface of the reinforcing plate 2 is one third of the width of the guide plate 11, wind passes through a gap between the reinforcing plate 2 and the guide plate 11, when the reinforcing plate 2 is wider, the gap between the reinforcing plate 2 and the guide plate 11 is reduced, the amount of wind passing through the bottom is reduced, the wind power is reduced, when the reinforcing plate 2 is narrower, the gap between the reinforcing plate 2 and the guide plate 11 is increased, and the wind power is insufficient, so that the width of the bottom surface of the reinforcing plate 2 is optimally set to be one third of the width of the guide plate 11; the cross-section of reinforcing plate 2 is trapezoidal design for the wind that blows from the bottom is carried along the inclined plane of reinforcing plate 2 upwards, improves wind-force and carries the effect, strengthens the result of use of reinforcing plate 2.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (6)
1. The utility model provides a coal pulverizer wind stifled device, is provided with a plurality of deflector (11), its characterized in that including moving wind ring (1), moving wind ring (1) even interval: and a reinforcing plate (2) is arranged between the adjacent guide plates (11), and the reinforcing plate (2) is arranged on the upper surface of the guide plate (11) and is fixedly connected with the guide plate (11).
2. The coal mill plugging device of claim 1, wherein: the two sides of the reinforcing plate (2) are arranged in a curved surface shape.
3. The coal mill plugging device of claim 1, wherein: the section of the reinforcing plate (2) is in a trapezoidal design.
4. The coal mill plugging device of claim 1, wherein: the width of the bottom surface of the reinforcing plate (2) is one third of the width of the guide plate (11).
5. The coal mill plugging device of claim 1, wherein: the thickness of the reinforcing plate (2) is 2-5 CM.
6. The coal mill plugging device of claim 1, wherein: the reinforcing plate (2) is arranged in the middle of the guide plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021037873.7U CN213000326U (en) | 2020-06-08 | 2020-06-08 | Coal mill air blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021037873.7U CN213000326U (en) | 2020-06-08 | 2020-06-08 | Coal mill air blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213000326U true CN213000326U (en) | 2021-04-20 |
Family
ID=75493476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021037873.7U Active CN213000326U (en) | 2020-06-08 | 2020-06-08 | Coal mill air blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213000326U (en) |
-
2020
- 2020-06-08 CN CN202021037873.7U patent/CN213000326U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 300000 No. 398, west side of Tanghan Road, Beitang street, Binhai New Area, Tianjin Patentee after: Tianjin Guoneng Binhai Thermal Power Co.,Ltd. Address before: No.1-18, Taishan Road, Xinyu home community, Beitang, Tanggu, Binhai New Area, Tianjin, 300450 Patentee before: Tianjin Guodian Tianjin Binhai Thermal Power Co.,Ltd. |
|
| CP03 | Change of name, title or address |