CN214464322U - Negative pressure air duct with high dust removal effect - Google Patents
Negative pressure air duct with high dust removal effect Download PDFInfo
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- CN214464322U CN214464322U CN202023332309.0U CN202023332309U CN214464322U CN 214464322 U CN214464322 U CN 214464322U CN 202023332309 U CN202023332309 U CN 202023332309U CN 214464322 U CN214464322 U CN 214464322U
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- air duct
- negative pressure
- felt
- pressure air
- stabilizer bar
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Abstract
The utility model relates to the technical field of air ducts, in particular to a negative pressure air duct with high dust removal effect, which comprises a foldable air duct and joints arranged at two sides of the air duct; the air duct comprises an outer skin and an inner liner; frameworks are arranged in the air duct at equal intervals; a plurality of groups of mounting blocks are arranged on the framework, and the mounting blocks are convexly arranged outside the air duct; the middle part of the mounting block is provided with a through hole; the air duct is provided with a plurality of stabilizer bars; the middle part of the stabilizer bar penetrates through the through hole of the mounting block, and the stabilizer bar is used for connecting two adjacent frameworks; the stabilizer bars are arranged in a staggered manner; the inner liner of the air duct is provided with a telescopic rod, the bottom of the telescopic rod is provided with a slide block, and the telescopic rod is provided with a felt; one end of the felt is fixed on the sliding block; a filter screen is arranged in the direction of the air duct facing the joint; the top of the filter screen is provided with an obliquely arranged guide plate; the utility model can adjust the length of the wind tube, and the installation is more stable; meanwhile, the felt arranged inside can improve the dust removal effect, and the use is more convenient.
Description
Technical Field
The utility model relates to an air duct technical field especially relates to a high dust removal effect negative pressure air duct.
Background
The air duct is divided into a positive pressure air duct and a negative pressure air duct according to the pressure difference between the inside and the outside of the air duct. The positive pressure air duct refers to an air duct in which the pressure inside the duct is higher than the pressure outside the duct when air is ventilated inside the duct. The negative pressure air duct refers to an air duct in which the pressure inside the duct is lower than the pressure outside the duct when the duct is ventilated. When the existing negative pressure air duct for mine safety prevention and control is used in a deeper underground coal mine, the negative pressure air duct is easy to fall and incline under the action of suction negative pressure, so that the air suction performance of the negative pressure air duct is reduced, the dust removal effect is poor, and the service life of the negative pressure air duct is influenced.
In order to solve the problems, the application provides a negative pressure air duct with a high dust removal effect.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
In order to solve the problems that the prior negative pressure air duct for mine safety prevention and control in the background technology is used in a deeper underground coal mine, because the negative pressure air duct is under the action of suction negative pressure, the negative pressure air duct is easy to drop and incline, and the like, the air suction performance of the negative pressure air duct is reduced, the dust removal effect is poor, and the service life of the negative pressure air duct is influenced, the utility model provides a high dust removal effect negative pressure air duct, which has the advantages that the length of the air duct can be adjusted, and the installation is more stable; meanwhile, the felt arranged inside can improve the dust removal effect, and the use is more convenient.
(II) technical scheme
In order to solve the technical problem, the utility model provides a negative pressure air duct with high dust removal effect, which comprises a foldable air duct and joints arranged at two sides of the air duct;
the air duct comprises an outer skin and an inner liner; frameworks are arranged in the air duct at equal intervals; a plurality of groups of mounting blocks are arranged on the framework, and the mounting blocks are convexly arranged outside the air duct; the middle part of the mounting block is provided with a through hole; the air duct is provided with a plurality of stabilizer bars; the middle part of the stabilizer bar penetrates through the through hole of the mounting block, and the stabilizer bar is used for connecting two adjacent frameworks; the stabilizer bars are arranged in a staggered manner;
the inner liner of the air duct is provided with a telescopic rod, the bottom of the telescopic rod is provided with a slide block, and the telescopic rod is provided with a felt; one end of the felt is fixed on the sliding block; a filter screen is arranged in the direction of the air duct facing the joint; the top of the filter screen is provided with a guide plate which is obliquely arranged.
Preferably, the middle part of the stabilizer bar is a polished rod, and two ends of the stabilizer bar are threaded rods; limiting plates are arranged at two ends of the stabilizing rod in a sliding mode and are in contact with the mounting blocks; the stabilizer bar is provided with a nut, and the nut is in threaded fit connection with the threaded rod.
Preferably, the polished rod in the middle of the stabilizer bar is provided with a plurality of hook holes which are arranged at equal intervals.
Preferably, the filter screen is arranged in a cubic frame shape.
Preferably, the guide plate is located below the felt, and the guide plate is inclined toward the left and right sides of the filter screen.
Preferably, the stabilizer bar is a hollow bar with a hollow interior.
Preferably, the connector is provided with an openable cover plate, and the cover plate is opposite to the felt.
The above technical scheme of the utility model has following profitable technological effect:
1. the middle part of the stabilizer bar is a polished rod, and two ends of the stabilizer bar are threaded rods; limiting plates are arranged at two ends of the stabilizing rod in a sliding mode and are in contact with the mounting blocks; the stabilizer bar is provided with a nut, and the nut is in threaded fit connection with the threaded rod. Rotating the nut, wherein the nut is in threaded fit connection with the threaded rod; thereby adjust the interval between the skeleton, be convenient for adjust the length of whole dryer to be adapted to different installation environment.
2. The polished rod in the middle of the stabilizer bar is provided with a plurality of hook holes which are arranged at equal intervals. Can set up extra support in air pipe and make it install with the couple hole, fix whole dryer, the installation is firm to be difficult for droing.
3. The guide plate is positioned below the felt and inclines towards the left side and the right side of the filter screen. An openable cover plate is arranged on the connector, and the cover plate faces the felt. The felt can move in the direction of the arrow in fig. 2 in the negative pressure air duct; and a part of dust can be adhered to the felt, and a part of dust can be decelerated under the barrier action of the felt and falls on the guide plate, and finally collected at two sides of the filter screen, and the cover plate is opened to perform ash removal treatment on the joint.
4. The stabilizer bar is a hollow bar with a hollow interior. The hollow rod can reduce the weight of the stabilizer bar, and the installation is more light.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the internal structure of the middle air duct of the present invention;
fig. 3 is a schematic structural view of a stabilizer bar of the present invention;
fig. 4 is a schematic structural diagram of the middle frame of the present invention.
Reference numerals: 1. a joint; 2. an air duct; 3. a framework; 31. mounting blocks; 4. a stabilizer bar; 41. a limiting plate; 42. a threaded rod; 43. a polish rod; 44. a hook hole; 45. a nut; 5. a telescopic rod; 6. felt; 7. a slider; 8. a guide plate; 9. and (4) a filter screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-4, the utility model provides a negative pressure air duct with high dust removal effect, which comprises a foldable air duct 2 and joints 1 arranged at two sides of the air duct 2;
the air duct 2 comprises an outer skin and an inner liner; the air duct 2 is provided with a framework 3 at equal intervals; a plurality of groups of mounting blocks 31 are arranged on the framework 3, and the mounting blocks 31 are convexly arranged outside the air duct 2; the middle part of the mounting block 31 is provided with a through hole; the air duct 2 is equipped with a plurality of stabilizer bars 4; the middle part of the stabilizer bar 4 passes through the through hole of the mounting block 31, and the stabilizer bar 4 is used for connecting two adjacent frameworks 3; the stabilizer bars 4 are arranged in a staggered manner;
the inner liner of the air duct 2 is provided with a telescopic rod 5, the bottom of the telescopic rod 5 is provided with a slide block 7, and the telescopic rod 5 is provided with a felt 6; one end of the felt 6 is fixed on the sliding block 7; a filter screen 9 is arranged in the direction of the air duct 2 facing the joint 1; the top of the filter screen 9 is provided with a guide plate 8 which is obliquely arranged.
In this embodiment, the middle of the stabilizer bar 4 is a polished rod 43, and the two ends are threaded rods 42; limiting plates 41 are arranged at two ends of the stabilizing rod 4 in a sliding mode, and the limiting plates 41 are in contact with the mounting blocks 31; the stabilizer bar 4 is provided with a nut 45, and the nut 45 is in threaded fit connection with the threaded rod 42.
It should be noted that, the nut 45 is rotated, and the nut 45 is connected with the threaded rod 42 in a threaded fit manner; thereby adjust the interval between the skeleton 3, be convenient for adjust the length of whole dryer 2 to be adapted to different installation environment.
In this embodiment, a plurality of hook holes 44 are provided at the polished rod 43 in the middle of the stabilizer bar 4, and the hook holes 44 are provided at equal intervals.
It should be noted that an additional bracket may be disposed in the ventilation duct to mount the ventilation duct with the hook hole 44, so as to fix the entire air duct 2, and the installation is firm and is not easy to fall off.
In the present embodiment, the filter net 9 is provided in a cubic frame shape.
In the present embodiment, the guide plate 8 is located below the felt 6, and the guide plate 8 is inclined toward both left and right sides of the filter net 9. An openable cover plate is arranged on the connector 1, and the cover plate is opposite to the felt 6.
It should be noted that the felt 6 moves in the negative pressure air duct 2 according to the arrow direction in fig. 2; and a part of dust can be adhered to the felt 6, and a part of dust can be decelerated under the blocking action of the felt 6 and falls on the guide plate 8, finally, the dust is collected at two sides of the filter screen 9, and the dust cleaning treatment can be carried out on the joint by opening the cover plate.
In the present embodiment, the stabilizer bar 4 is a hollow bar having a hollow inside.
It should be noted that the hollow rod can reduce the weight of the stabilizer bar 4, and the installation is more light.
The utility model discloses a theory of operation and use flow: the length of the stabilizer bar 4 is properly adjusted according to the length of the air duct 2 required to be arranged; the nut 45 is rotated, and the nut 45 is in threaded fit connection with the threaded rod 42; therefore, the distance between the frameworks 3 is adjusted, and the length of the whole air duct 2 is convenient to adjust so as to adapt to different installation environments; a plurality of hook holes 44 are arranged at the polished rod 43 in the middle of the stabilizer bar 4, and the hook holes 44 are arranged at equal intervals. An additional support can be arranged in the ventilation duct to enable the ventilation duct to be installed with the hook holes 44, so that the whole air duct 2 is fixed, and the ventilation duct is firm to install and is not easy to fall off; in the actual use process, the wind carries dust to move in the wind barrel 2, and the sliding block 7 moves downwards along the telescopic rod 5, so that the felt 6 is unfolded; under the action of wind force, the felt 6 moves towards the direction shown by an arrow in fig. 2, a part of dust is adhered to the felt 6, a part of dust is decelerated under the blocking action of the felt 6 and falls on the guide plate 8, finally the dust is collected on two sides of the filter screen 9, and the dust cleaning treatment can be carried out on the joint by regularly opening the cover plate. The utility model can adjust the length of the wind tube 2, and the installation is more stable; meanwhile, the felt 6 arranged inside can improve the dust removal effect, and the use is more convenient.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A negative pressure air duct with high dust removal effect is characterized by comprising a foldable air duct (2) and connectors (1) arranged on two sides of the air duct (2);
the air duct (2) comprises an outer skin and an inner liner; the wind barrel (2) is provided with frameworks (3) at equal intervals; a plurality of groups of mounting blocks (31) are arranged on the framework (3), and the mounting blocks (31) are convexly arranged outside the air duct (2); the middle part of the mounting block (31) is provided with a through hole; the air duct (2) is provided with a plurality of stabilizer bars (4); the middle part of the stabilizer bar (4) penetrates through a through hole of the mounting block (31), and the stabilizer bar (4) is used for connecting two adjacent frameworks (3); the stabilizer bars (4) are arranged in a staggered manner;
a telescopic rod (5) is arranged on the inner liner layer of the air duct (2), a sliding block (7) is arranged at the bottom of the telescopic rod (5), and a felt (6) is arranged on the telescopic rod (5); one end of the felt (6) is fixed on the sliding block (7); a filter screen (9) is arranged on the wind barrel (2) towards the joint (1); the top of the filter screen (9) is provided with a guide plate (8) which is obliquely arranged.
2. The negative pressure air duct with high dust removal effect as claimed in claim 1, wherein the stabilizer bar (4) has a polished rod (43) at the middle part and a threaded rod (42) at the two ends; limiting plates (41) are arranged at two ends of the stabilizer bar (4) in a sliding mode, and the limiting plates (41) are in contact with the mounting blocks (31); the stabilizer bar (4) is provided with a nut (45), and the nut (45) is in threaded fit connection with the threaded rod (42).
3. The negative pressure air duct with high dust removal effect as claimed in claim 2, wherein a plurality of hook holes (44) are formed in the polished rod (43) in the middle of the stabilizer bar (4), and the hook holes (44) are arranged at equal intervals.
4. The negative pressure air duct according to claim 1, wherein the filter screen (9) is provided in a cubic frame shape.
5. The negative pressure air duct with high dust removal effect as claimed in claim 1, wherein the guide plate (8) is located below the felt (6), and the guide plate (8) is inclined towards the left and right sides of the filter screen (9).
6. The negative pressure air duct according to claim 1, wherein the stabilizing rod (4) is a hollow rod with a hollow interior.
7. The negative pressure air duct with high dust removal effect of claim 1, wherein the joint (1) is provided with an openable cover plate, and the cover plate is opposite to the felt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023332309.0U CN214464322U (en) | 2020-12-30 | 2020-12-30 | Negative pressure air duct with high dust removal effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023332309.0U CN214464322U (en) | 2020-12-30 | 2020-12-30 | Negative pressure air duct with high dust removal effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214464322U true CN214464322U (en) | 2021-10-22 |
Family
ID=78110439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023332309.0U Active CN214464322U (en) | 2020-12-30 | 2020-12-30 | Negative pressure air duct with high dust removal effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214464322U (en) |
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2020
- 2020-12-30 CN CN202023332309.0U patent/CN214464322U/en active Active
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