CN215878308U - Primary air supplementing valve device of powder concentrator - Google Patents
Primary air supplementing valve device of powder concentrator Download PDFInfo
- Publication number
- CN215878308U CN215878308U CN202121468162.XU CN202121468162U CN215878308U CN 215878308 U CN215878308 U CN 215878308U CN 202121468162 U CN202121468162 U CN 202121468162U CN 215878308 U CN215878308 U CN 215878308U
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- powder concentrator
- pipeline
- primary air
- air inlet
- air
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- 239000000843 powder Substances 0.000 title claims abstract description 69
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 17
- 239000013589 supplement Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 abstract description 13
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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Abstract
The utility model discloses a primary air supplement valve device of a powder concentrator, which comprises: the device comprises a circulating fan and a powder concentrator, wherein a primary air inlet is formed in the right side of the powder concentrator, and a secondary air inlet is formed in the left side of the powder concentrator; a primary air inlet on the right side of the powder concentrator is connected with a first pipeline; a primary air inlet door is arranged at the top of the outer side of the port at the upper end of the pipeline; the lower end of the primary air inlet door is provided with an adjusting plate; an air supplementing opening is arranged at the position of the bent part of the pipeline, which is opposite to the primary air inlet; one end of the air supply port is provided with an air supply door; and a circular air supplement valve is arranged on the outer side pipe wall at the lower end of the pipeline. The device effectively increases the primary air inlet air quantity of the powder concentrator, reasonably allocates the air quantity between the guide vane of the powder concentrator and the primary air channel, eliminates the dust accumulation and the powder concentration blind area of the air channel, improves the powder concentration efficiency of the powder concentrator, reduces the cyclic load rate of the mill, improves the yield of the cement mill, reduces the power consumption cost of the cement mill, and ensures the quality of finished cement.
Description
Technical Field
The utility model belongs to the technical field of auxiliary devices of powder separators of cement mills, and particularly relates to a primary air supplementing valve device of a powder separator.
Background
The powder concentrator is widely applied to coal mills, raw material discharge drying mills and cement mill systems in novel dry cement production lines. The powder concentrator has a plurality of types, the materials with different types are different, and different types are manufactured according to the requirement of customers on the fineness of the materials. The control of the qualification rate of different finished products of the powder concentrator can be realized by changing the air quantity of the powder concentrator, when the air quantity passing through the powder concentrator is less than the set value, the yield is reduced because of low efficiency of the powder concentrator, and when the air quantity passing through the powder concentrator is more than the set value, qualified products are difficult to obtain. And the insufficient amount of primary air can cause the materials entering the powder concentrator to be effectively classified, the specific surface area of the finished cement is suddenly high or suddenly low, and the rotating speed of the powder concentrator is usually increased again under the condition, so that the specific surface area cannot be effectively increased, but the rotating speed is increased more and more, and the specific surface area is reduced. Because the rotating speed of the powder concentrator is faster, the formed centrifugal force is larger, the material content per unit volume is too high, the material is not well dispersed, the particles are not well classified in time due to the uneven centripetal force and are generally smaller, and the particles are formed into coarse powder, so that the reground material of the cement mill contains a large amount of unqualified finished products, and the improvement of the production quality of the cement mill is directly influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a primary air supplementing air valve device of a powder concentrator, which solves the problem of insufficient air volume between guide vanes of the powder concentrator and a primary air duct, eliminates dust accumulation and powder concentration dead zones of the air duct, and has low powder concentration efficiency of the powder concentrator and low cement mill yield.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a primary air supplementing valve device of a powder concentrator comprises: the device comprises a circulating fan and a powder concentrator, wherein a primary air inlet is formed in the right side of the powder concentrator, and a secondary air inlet is formed in the left side of the powder concentrator; a primary air inlet on the right side of the powder concentrator is connected with a first pipeline; the first pipeline is bent; a primary air inlet door is arranged at the top of the outer side of the port at the upper end of the pipeline; the lower end of the primary air inlet door is provided with an adjusting plate; an air supplementing opening is arranged at the position of the bent part of the pipeline, which is opposite to the primary air inlet; one end of the air supply port is provided with an air supply door; a separation baffle is arranged in the air supplement door; a circular air supplement valve is arranged on the outer side pipe wall of the lower end of the pipeline; the lower end of the first pipeline is connected with a second pipeline; the second pipeline is connected to the circulating fan; and the circulating fan is provided with an air inlet.
Further, a circulating fan exhaust valve A is connected between the first pipeline and the second pipeline; a third pipeline is arranged on the second pipeline; and a circulating fan exhaust valve B is arranged on the third pipeline.
Furthermore, the upper end of the powder concentrator is provided with a feed inlet, and the lower end of the powder concentrator is provided with a discharge outlet.
Furthermore, the separating baffle is V-shaped, and the included angle of the separating baffle is 30 degrees.
Furthermore, the size of the air supply opening is 170cm x 100cm, and the size of the air supply opening is 190cm x 120 cm.
Compared with the prior art, the utility model has the following beneficial effects:
the device effectively increases the primary air inlet air quantity of the 0-Sepa powder concentrator, reasonably allocates the air quantity between the guide vane of the powder concentrator and the primary air channel, eliminates the dust accumulation and the powder concentration blind area of the air channel, improves the powder concentration efficiency of the powder concentrator, reduces the cyclic load rate of a mill, improves the yield of a cement mill, reduces the power consumption cost of the cement mill, and ensures the quality of finished cement.
Drawings
FIG. 1 is a schematic structural view of a primary air supply valve device of a powder concentrator according to the present invention;
in the figure: the device comprises a primary air inlet door-1, an adjusting plate-2, an air supplementing opening-3, an air supplementing opening-4, a separating baffle-5, a circular air supplementing valve-6, a circulating fan exhaust gas valve A-7, a circulating fan exhaust gas valve B-8, a circulating fan-9, an air inlet-10, a powder concentrator-11, a secondary air inlet-12, a feed inlet-13, a discharge outlet-14, a pipeline I-15, a pipeline II-16 and a pipeline III-17.
Detailed Description
The drawings in the embodiments of the utility model will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described as follows:
as shown in fig. 1, a primary air supply valve device of a powder concentrator comprises: the device comprises a circulating fan 9 and a powder concentrator 11, wherein a primary air inlet is formed in the right side of the powder concentrator 11, and a secondary air inlet 12 is formed in the left side of the powder concentrator 11; a first air inlet at the right side of the powder concentrator 11 is connected with a first pipeline 15; the first pipeline 15 is bent; a primary air inlet door 1 is arranged at the top of the outer side of the upper end port of the first pipeline 15; the lower end of the primary air inlet door 1 is provided with an adjusting plate 2, and the powder concentrator achieves the effect of reasonable air distribution by adjusting the opening value of the adjusting plate 2; an air supplementing opening 3 is arranged at the position, opposite to the primary air inlet, of the bent part of the first pipeline 15; one end of the air supply port 3 is provided with an air supply door 4 for supplying the ventilation quantity of the powder concentrator and improving the powder concentration efficiency; the air supplementing door 4 is internally provided with a separation baffle 5 which can divide air entering the air channel into two parts, so that the air quantity can be supplemented to the guide blade of the powder concentrator, the air quantity in the primary air channel can be properly increased, and the air quantity in the air channel is uniformly distributed; a circular air supplement valve 6 is arranged on the outer side pipe wall at the lower end of the first pipeline 15; the lower end of the first pipeline 15 is connected with a second pipeline 16; the second pipeline 16 is connected to the circulating fan 9; and an air inlet 10 is formed in the circulating fan 9.
Specifically, a circulating fan exhaust gas valve A7 is connected between the first pipeline 15 and the second pipeline 16; a third pipeline 17 is arranged on the second pipeline 16; and a circulating fan exhaust valve B8 is arranged on the third pipeline 17.
Specifically, the powder concentrator 11 is provided with a feed inlet 13 at the upper end and a discharge outlet 14 at the lower end.
Specifically, the separating baffle 5 is V-shaped, and the included angle is 30 degrees.
Specifically, the size of the air supply opening 3 is 170cm x 100cm, and the size of the air supply opening 4 is 190cm x 120 cm.
When in use, the air supplement port 3 cut on the horizontal opposite surface side of the primary air inlet pipeline of the 0-Sepa powder concentrator 11 and the additional air supplement door 4 are used for supplementing the ventilation quantity of the powder concentrator. The V-shaped separating baffle 5 is arranged in the air supplementing door 4, and divides the air entering the air channel into two parts, so that the air quantity can be supplemented to the guide vanes of the powder concentrator, the air quantity in the primary air channel can be properly increased, the air quantity in the air channel is uniformly distributed, and the powder selecting blind area caused by the gap between the guide vanes and the reduction of the primary air channel is eliminated. And then the opening of the adjusting plate 2 is adjusted, the air inlet at the middle upper part of the static blades is properly reduced, the air inlet at the middle lower part of the static blades is increased, the circular air supplement valve 6 at the lower part of the pipeline from the waste gas of the circulating fan to the primary air port of the powder concentrator is completely closed, and the waste gas valve 7 of the circulating fan can be normally adjusted during operation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention by equivalent replacement or change according to the technical solution and the modified concept of the present invention within the technical scope of the present invention.
Claims (5)
1. A primary air supplementing valve device of a powder concentrator comprises: the air purifier is characterized by comprising a circulating fan (9) and a powder concentrator (11), wherein a primary air inlet is formed in the right side of the powder concentrator (11), and a secondary air inlet (12) is formed in the left side of the powder concentrator; a primary air inlet on the right side of the powder concentrator (11) is connected with a first pipeline (15); the first pipeline (15) is bent; the top of the outer side of the port at the upper end of the pipeline I (15) is provided with a primary air inlet door (1); the lower end of the primary air inlet door (1) is provided with an adjusting plate (2); an air supplementing opening (3) is arranged at the position, opposite to the primary air inlet, of the bent part of the first pipeline (15); one end of the air supply port (3) is provided with an air supply door (4); a separation baffle (5) is arranged in the air supplementing door (4); a circular air supplement valve (6) is installed on the pipe wall on the outer side of the lower end of the first pipeline (15); the lower end of the first pipeline (15) is connected with a second pipeline (16); the second pipeline (16) is connected to the circulating fan (9); and an air inlet (10) is formed in the circulating fan (9).
2. The primary air supplement valve device of the powder concentrator according to claim 1, wherein: a circulating fan exhaust valve A (7) is connected between the first pipeline (15) and the second pipeline (16); a third pipeline (17) is arranged on the second pipeline (16); and a circulating fan exhaust valve B (8) is arranged on the pipeline III (17).
3. The primary air supplement valve device of the powder concentrator according to claim 1, wherein: the upper end of the powder concentrator (11) is provided with a feed inlet (13), and the lower end is provided with a discharge outlet (14).
4. The primary air supplement valve device of the powder concentrator according to claim 1, wherein: the separating baffle (5) is V-shaped, and the included angle is 30 degrees.
5. The primary air supplement valve device of the powder concentrator according to claim 1, wherein: the size of the air supply opening (3) is 170cm x 100cm, and the size of the air supply opening (4) is 190cm x 120 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121468162.XU CN215878308U (en) | 2021-06-30 | 2021-06-30 | Primary air supplementing valve device of powder concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121468162.XU CN215878308U (en) | 2021-06-30 | 2021-06-30 | Primary air supplementing valve device of powder concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215878308U true CN215878308U (en) | 2022-02-22 |
Family
ID=80562116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121468162.XU Expired - Fee Related CN215878308U (en) | 2021-06-30 | 2021-06-30 | Primary air supplementing valve device of powder concentrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215878308U (en) |
-
2021
- 2021-06-30 CN CN202121468162.XU patent/CN215878308U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220222 |