CN215763369U - Valve for changing ventilation quantity of air duct - Google Patents
Valve for changing ventilation quantity of air duct Download PDFInfo
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- CN215763369U CN215763369U CN202220014166.9U CN202220014166U CN215763369U CN 215763369 U CN215763369 U CN 215763369U CN 202220014166 U CN202220014166 U CN 202220014166U CN 215763369 U CN215763369 U CN 215763369U
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Abstract
The utility model relates to the technical field of ventilation duct valves, and provides a valve for changing the ventilation volume of an air duct, which comprises a valve body, wherein the air duct is arranged inside the valve body, connecting flanges are respectively connected to the valve body and along the two ends of the air duct, a moving block for adjusting the ventilation volume of the air duct is relatively and slidably mounted on the valve body, one end of the moving block extends into the air duct, the other end of the moving block is provided with a connecting frame, one end of the connecting frame, far away from the moving block, is connected with a driving mechanism, the driving mechanism is mounted on an outer cover, and the outer cover is mounted on the valve body. The utility model solves the problems that the calcination capacity and the product quality of the rotary cement kiln are influenced because the ventilation quantity is not controlled and adjusted in the cement calcination process at present.
Description
Technical Field
The utility model relates to the technical field of air duct valves, in particular to a valve for changing air volume of an air duct.
Background
The cement making process requires matching of wind, coal and materials, the existing cement making process has mature means for metering coal dust and raw meal powder, and only lacks effective means for controlling and adjusting ventilation, and the ventilation in the cement firing process plays a critical role in the cement making process and influences the calcining capacity of the cement rotary kiln and the quality of products.
Therefore, the valve for changing the ventilation quantity of the air channel is developed, so that the valve not only has urgent research value, but also has good economic benefit and industrial application potential.
Disclosure of Invention
In order to overcome the defects of the prior art indicated above, the utility model provides a valve for changing the ventilation of an air duct, so as to solve the problems that the calcination capacity of a rotary cement kiln and the quality of products are influenced due to the lack of control and adjustment of the ventilation in the existing cement calcination process.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the valve comprises a valve body, wherein an air channel is arranged in the valve body, connecting flanges are respectively connected to two ends of the air channel on the valve body, a moving block used for adjusting the air channel ventilation is installed on the valve body in a sliding mode, one end of the moving block extends into the air channel, a connecting frame is installed at the other end of the moving block, one end, far away from the moving block, of the connecting frame is connected with a driving mechanism, the driving mechanism is installed on an outer cover, and the outer cover is installed on the valve body.
As an improved scheme, the driving mechanism comprises a supporting frame, the supporting frame is connected with the outer cover, a lead screw is rotatably installed on the supporting frame through a bearing, one end of the lead screw is connected with an output shaft of a driving motor, a machine body of the driving motor is installed on the supporting frame, a lead screw nut is connected to the other end of the lead screw in a threaded mode, and the lead screw nut is installed on the connecting frame.
As an improved scheme, two sides of the moving block along the moving direction are respectively and oppositely provided with a guide mechanism;
the guide mechanism comprises a mounting frame, the mounting frame is mounted on the valve body, one end, close to the moving block, of the mounting frame is rotatably mounted with a plurality of guide pressing wheels, and the guide pressing wheels are all abutted against the moving block.
As an improved scheme, the valve body is further provided with a plurality of cleaning holes, the cleaning holes are all sealed by sealing covers, and the sealing covers are installed on the valve body through hinge rods.
As an improved scheme, the valve body comprises a square valve body and a circular valve body, and the moving block comprises a square moving block and an arc moving block;
the square moving block is matched with the square valve body and is oppositely arranged on the square valve body;
the arc-shaped moving block is matched with the circular valve body and is oppositely arranged on the circular valve body;
and chamfers are arranged at one ends of the square moving blocks and the arc moving blocks facing the air duct.
As an improved scheme, the square valve body comprises a plurality of corner upright posts, a first fixed body and a connecting body, a frame structure is formed between the corner upright posts and the connecting body and is matched with the square moving block, and the outer cover on the square valve body is connected with the corner upright posts and the connecting body;
the first fixing body is connected with the corner upright post, and the cleaning hole on the square valve body is arranged on the first fixing body.
As an improved scheme, the circular valve body comprises a plurality of second fixed bodies and a frame-shaped connecting body which are sequentially connected, and an inner cavity of the frame-shaped connecting body is matched with the arc-shaped moving block;
the outer cover on the circular valve body is connected with the second fixing body, and the cleaning hole on the circular valve body is formed in the second fixing body.
As an improved scheme, two square moving blocks are arranged on the square valve body, and four arc moving blocks are arranged on the circular valve body.
After the technical scheme is adopted, the utility model has the beneficial effects that:
the valve body is respectively connected with the connecting flanges along two ends of the air duct, the connecting flanges are convenient to be communicated with the ventilating duct, the valve body is relatively and slidably provided with the moving block for adjusting the ventilation quantity of the air duct, one end of the moving block extends into the air duct, the other end of the moving block is provided with the connecting frame, the connecting frame is connected with the driving mechanism, the moving block can be pushed to move towards the air duct through the driving mechanism, and further the ventilation aperture of the inner cavity of the air duct is adjusted, because the valve body is arranged at the smoke chamber lock port of the cement rotary kiln in the using process and is matched with the centrifugal fan to extract high-temperature gas in the cement rotary kiln and is used for decomposing and using subsequent raw materials, in the air draft process of the centrifugal fan, the ventilation aperture of the inner cavity of the air duct is changed, so that the ventilation quantity in the air duct is changed, and secondly, the air speed is also changed, and simultaneously, under the condition that the rotating speed of a centrifugal fan is not changed, the ventilation aperture at the smoke chamber lock port of the cement rotary kiln is changed, the pressure of the centrifugal fan is also changed, and further the air volume is changed, so that the ventilation volume of an air duct is changed, the adjustment is convenient and quick, the calcining capacity of the cement rotary kiln is improved, the product quality is improved, a driving mechanism is arranged on an outer cover, the outer cover is arranged on a valve body, and by arranging the valve body, a connecting flange, a moving block, the driving mechanism and the outer cover, the modularized structural design of the air duct ventilation volume valve is realized, the risk-free disassembly and maintenance are convenient, various internal structures are based on the modularized design, the relatively symmetrical design is realized, the central line of the original ventilation duct design is not deviated, the improved workload is reduced, and the field installation and maintenance are convenient;
the driving mechanism comprises a supporting frame, the supporting frame is connected with the outer cover, a lead screw is rotatably mounted on the supporting frame through a bearing, one end of the lead screw is connected with an output shaft of a driving motor, the other end of the lead screw is in threaded connection with a lead screw nut, the lead screw nut is mounted on a connecting frame, the connecting frame is connected with a movable block, the lead screw can be driven to rotate through the driving motor, the lead screw drives the connecting frame to axially move through the lead screw nut, and further drives the movable block to axially move, so that the aperture of the air duct can be adjusted, and the ventilation volume of the air duct can be changed;
the guide mechanisms are respectively and oppositely arranged on two sides of the moving block along the moving direction and comprise mounting frames, a plurality of guide pressing wheels are rotatably arranged at one ends of the mounting frames, which are close to the moving block, the guide pressing wheels are all abutted against the moving block, the moving block is limited by arranging the guide pressing wheels, and the moving smoothness of the moving block is guaranteed;
the valve body is provided with the cleaning holes, so that crusts generated by long-time use of the inner cavity of the valve body can be conveniently cleaned through the cleaning holes, the smoothness of the moving block in adjustment is ensured, the sealing cover is sealed on the cleaning holes and is arranged on the valve body through the hinge rod, the sealing cover can be opened in cleaning and closed in non-cleaning, and the influence on the ventilation volume of a pipeline is avoided;
the valve body comprises a square valve body and a circular valve body, the valve body is convenient to adapt to pipelines with different shapes by arranging the valve bodies with different shapes, the moving block comprises a square moving block and an arc moving block, the square moving block is matched with the square valve body, the arc moving block is matched with the circular valve body, and the moving blocks with different shapes are convenient to adapt to the valve bodies with different shapes by arranging the moving blocks with different shapes.
In conclusion, the utility model solves the problems that the calcination capacity of the rotary cement kiln and the quality of products are influenced because the ventilation quantity is not controlled and adjusted in the cement calcination process at present.
Drawings
FIG. 1 is a schematic structural view of a square valve body according to the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic top view of the structure of FIG. 1;
FIG. 4 is a side view schematic of the structure of FIG. 1;
FIG. 5 is a schematic view of a circular valve body according to the present invention;
FIG. 6 is a schematic cross-sectional view of B-B in FIG. 5;
FIG. 7 is a schematic top view of the structure of FIG. 5;
wherein each numerical designation refers to a particular meaning, element, and/or component, respectively, as follows in the figures.
In the figure: 1. the square valve body, 101, a corner upright post, 102, a first fixing body, 103, a connecting body, 2, a circular valve body, 201, a second fixing body, 202, a frame-shaped connecting body, 3, a square moving block, 4, an arc moving block, 5, an air duct, 6, a connecting flange, 7, a connecting frame, 8, a driving mechanism, 801, a supporting frame, 802, a bearing, 803, a lead screw, 804, a driving motor, 805, a lead screw nut, 9, a guiding mechanism, 901, a mounting frame, 902, a guiding pressing wheel, 10, an outer cover, 11, a cleaning hole, 12, a sealing cover, 13 and a hinge rod.
Detailed Description
The utility model is further illustrated by the following specific examples. The use and purpose of these exemplary embodiments are to illustrate the present invention, not to limit the actual scope of the present invention in any way, and not to limit the scope of the present invention in any way.
As shown in figures 1-7, a valve for changing the ventilation of an air duct comprises a valve body, the interior of the valve body is provided with an air duct 5, the valve body is respectively connected with a connecting flange 6 along two ends of the air duct 5 and is conveniently communicated with the ventilation duct through the connecting flange 6, a moving block for adjusting the ventilation of the air duct 5 is relatively slidably mounted on the valve body, one end of the moving block extends into the air duct 5, the other end of the moving block is provided with a connecting frame 7, one end of the connecting frame 7 far away from the moving block is connected with a driving mechanism 8, the moving block can be pushed to move into the air duct 5 through the driving mechanism 8, so as to adjust the ventilation aperture of the inner cavity of the air duct 5, because in the use process, the valve body is mounted at the lock port of a smoke chamber of a cement rotary kiln and is matched with a centrifugal fan to extract high-temperature gas in the cement rotary kiln and is used for decomposing subsequent raw materials, in the air extraction process of the centrifugal fan, because the ventilation aperture of the inner cavity of the air duct 5 is changed, the smoothness of ventilation is changed, and further the ventilation quantity in the air duct 5 is changed, secondly, the air speed is changed along with the change, meanwhile, under the condition that the rotating speed of the centrifugal fan is not changed, the ventilation aperture of the smoke chamber lock port of the cement rotary kiln is changed, the pressure of the centrifugal fan is also changed, and further the air quantity is changed, so that the ventilation quantity of the air duct 5 is changed, the adjustment is convenient and fast, the calcining capability of the cement rotary kiln is improved, the quality of a product is improved, the driving mechanism 8 is arranged on the outer cover 10, the outer cover 10 is arranged on the valve body, the modularized structural design of the air duct ventilation quantity valve is realized by arranging the valve body, the connecting flange 6, the moving block, the driving mechanism 8 and the outer cover 10, the modularized structural design of the air duct ventilation quantity valve is convenient for risk-free disassembly and maintenance, and various structures inside the modularized structural design are based on the modularized design, the relative symmetrical design is realized, the central line of the original ventilation pipeline design is ensured not to deviate, the improved workload is reduced, and the on-site installation and maintenance are facilitated.
In this embodiment, as shown in fig. 1 to 7, the driving mechanism 8 includes a supporting frame 801, the supporting frame 801 is connected to the housing 10, a lead screw 803 is rotatably installed on the supporting frame 801 through a bearing 802, one end of the lead screw 803 is connected to an output shaft of a driving motor 804, a body of the driving motor 804 is installed on the supporting frame 801, a lead screw nut 805 is connected to the other end of the lead screw 803 in a threaded manner, the lead screw nut 805 is installed on the connecting frame 7, the lead screw 803 can be driven to rotate by the driving motor 804, the lead screw 803 drives the connecting frame 7 to axially move through the lead screw nut 805, and further drives the moving block to axially move, so as to adjust the aperture of the air duct 5 and change the ventilation volume of the air duct 5.
In this embodiment, as shown in fig. 2 and fig. 6, the two sides of the moving block along the moving direction are respectively and oppositely provided with the guide mechanisms 9;
the guide mechanism 9 comprises an installation frame 901, the installation frame 901 is installed on the valve body, one end, close to the moving block, of the installation frame 901 is rotatably installed with a plurality of guide pressing wheels 902, the guide pressing wheels 902 are all abutted to the moving block, the moving block is limited through the guide pressing wheels 902, and the moving smoothness of the moving block is guaranteed.
In this embodiment, as shown in fig. 1-7, still be provided with a plurality of clearance holes 11 on the valve body, all closed closing cap 12 on a plurality of clearance holes 11, closing cap 12 installs on the valve body through hinge bar 13, through set up a plurality of clearance holes 11 on the valve body, can conveniently clear up the produced crust of long-time use of valve body inner chamber through clearance holes 11, smoothness when guaranteeing the movable block adjustment, through closing cap 12 on clearance holes 11, closing cap 12 installs on the valve body through hinge bar 13, can open when clearing up through setting up closing cap 12, close when not clearing up, avoid influencing the air volume of pipeline.
In the embodiment, as shown in fig. 1 to 7, the valve body includes a square valve body 1 and a circular valve body 2, the valve bodies with different shapes are arranged to be suitable for different shapes of pipelines, the moving block includes a square moving block 3 and an arc moving block 4, and the moving blocks with different shapes are arranged to be suitable for different shapes of valve bodies;
the square moving block 3 is matched with the square valve body 1 and is oppositely arranged on the square valve body 1;
the arc-shaped moving block 4 is matched with the circular valve body 2 and is oppositely arranged on the circular valve body 2;
and chamfers are arranged at one ends of the square moving block 3 and the arc moving block 4 facing the air duct 5.
In addition, in the present embodiment, two structural states of the square valve body 1 and the circular valve body 2 are illustrated, besides, the structure of the present application can also be applied to other valve body structures with different shapes, such as a triangular structure, a pentagonal structure, a hexagonal structure, etc., to achieve the adjustment of the ventilation volume, and all these equivalent forms also fall within the protection scope defined by the appended claims of the present application.
In this embodiment, as shown in fig. 1 and fig. 2, the square valve body 1 includes a plurality of corner posts 101, a first fixing body 102 and a connecting body 103, a frame structure is formed between the corner posts 101 and the connecting body 103, and the frame structure is adapted to the square moving block 3, in this embodiment, the corner posts 101 and the connecting body 103 may be connected by welding, or by bolts, or by other connection methods, and the outer cover 10 on the square valve body 1 is connected with the corner posts 101 and the connecting body 103 by bolts;
the first fixing body 102 is connected to the corner post 101, and the cleaning holes 11 on the square valve body 1 are disposed on the first fixing body 102, in this embodiment, 4 cleaning holes 11 are relatively disposed on the first fixing body 102.
In this embodiment, as shown in fig. 5 and fig. 6, the circular valve body 2 includes a plurality of second fixing bodies 201 and a frame-shaped connecting body 202 connected in sequence, an inner cavity of the frame-shaped connecting body 202 is adapted to the arc-shaped moving block 4, and the frame-shaped connecting body 202 is connected to the second fixing bodies 201 by bolts or welding;
the outer cover 10 on the circular valve body 2 is connected with the second fixing body 201 through bolts, and the cleaning holes 11 on the circular valve body 2 are formed in the second fixing body 201, wherein in the embodiment, 4 cleaning holes 11 are formed in the second fixing body 201 relatively.
In this embodiment, as shown in fig. 1 and 5, two square moving blocks 3 are arranged on a square valve body 1, two corresponding driving mechanisms 8 are arranged on the square valve body 1, four arc moving blocks 4 are arranged on a circular valve body 2, and 4 corresponding driving mechanisms 8 are arranged on the circular valve body 2.
For ease of understanding, the working process of the present embodiment is given below:
as shown in fig. 1-7, firstly, a valve for changing the ventilation volume of the air duct 5 is installed on the ventilation duct and connected with the ventilation duct through a connecting flange 6, when the ventilation volume of the air duct 5 needs to be adjusted, a driving motor 804 of a driving mechanism 8 rotates and drives a lead screw 803 to rotate, the lead screw 803 drives a lead screw nut 805 to move along the axial direction in the rotation process, because the lead screw nut 805 is installed on a connecting frame 7, the connecting frame 7 is installed on a moving block and then drives the moving block to move, and in the moving process of the moving block, a guide pinch roller 902 of a guide mechanism 9 guides, so that the ventilation aperture of the air duct 5 is adjusted, and further the ventilation volume of the air duct 5 is adjusted;
after the valve is used for a long time, the sealing cover 12 at the cleaning hole 11 is opened, the crusts on the side wall of the valve body air duct 5 are cleaned through a cleaning tool, and then the sealing cover 12 is closed.
The utility model solves the problems that the calcination capacity of the rotary cement kiln and the quality of products are influenced because the ventilation quantity is not controlled and adjusted in the cement calcination process at present.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (8)
1. The utility model provides a change valve of wind channel air volume which characterized in that: the air channel adjusting valve comprises a valve body, an air channel is arranged inside the valve body, two ends of the air channel are connected with connecting flanges respectively, a moving block used for adjusting air volume of the air channel is installed on the valve body in a sliding mode, one end of the moving block extends into the air channel, a connecting frame is installed at the other end of the moving block, one end, far away from the moving block, of the connecting frame is connected with a driving mechanism, the driving mechanism is installed on an outer cover, and the outer cover is installed on the valve body.
2. A valve for varying the amount of ventilation to a duct as claimed in claim 1, wherein: the driving mechanism comprises a supporting frame, the supporting frame is connected with the outer cover, a lead screw is rotatably installed on the supporting frame through a bearing, one end of the lead screw is connected with an output shaft of a driving motor, a machine body of the driving motor is installed on the supporting frame, the other end of the lead screw is in threaded connection with a lead screw nut, and the lead screw nut is installed on the connecting frame.
3. A valve for varying the amount of ventilation to a duct as claimed in claim 1, wherein: two sides of the moving block along the moving direction are respectively and oppositely provided with a guide mechanism;
the guide mechanism comprises a mounting frame, the mounting frame is mounted on the valve body, one end, close to the moving block, of the mounting frame is rotatably mounted with a plurality of guide pressing wheels, and the guide pressing wheels are all abutted against the moving block.
4. A valve for varying the amount of ventilation to a duct as claimed in claim 1, wherein: still be provided with a plurality of clearance holes on the valve body, it is a plurality of all seal the closing cap on the clearance hole, the closing cap pass through the hinge bar install in on the valve body.
5. The valve for varying the ventilation of an air duct of claim 4, wherein: the valve body comprises a square valve body and a circular valve body, and the moving block comprises a square moving block and an arc moving block;
the square moving block is matched with the square valve body and is oppositely arranged on the square valve body;
the arc-shaped moving block is matched with the circular valve body and is oppositely arranged on the circular valve body;
and chamfers are arranged at one ends of the square moving blocks and the arc moving blocks facing the air duct.
6. The valve for varying the ventilation of an air duct of claim 5, wherein: the square valve body comprises a plurality of corner upright posts, a first fixing body and a connecting body, a frame structure is formed between the corner upright posts and the connecting body and is matched with the square moving block, and the outer cover on the square valve body is connected with the corner upright posts and the connecting body;
the first fixing body is connected with the corner upright post, and the cleaning hole on the square valve body is arranged on the first fixing body.
7. The valve for varying the ventilation of an air duct of claim 5, wherein: the circular valve body comprises a plurality of second fixed bodies and a frame-shaped connecting body which are sequentially connected, and an inner cavity of the frame-shaped connecting body is matched with the arc-shaped moving block;
the outer cover on the circular valve body is connected with the second fixing body, and the cleaning hole on the circular valve body is formed in the second fixing body.
8. The valve for varying the ventilation of an air duct of claim 5, wherein: the square valve body is provided with two square moving blocks, and the circular valve body is provided with four arc moving blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220014166.9U CN215763369U (en) | 2022-01-05 | 2022-01-05 | Valve for changing ventilation quantity of air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220014166.9U CN215763369U (en) | 2022-01-05 | 2022-01-05 | Valve for changing ventilation quantity of air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215763369U true CN215763369U (en) | 2022-02-08 |
Family
ID=80095648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220014166.9U Active CN215763369U (en) | 2022-01-05 | 2022-01-05 | Valve for changing ventilation quantity of air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215763369U (en) |
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2022
- 2022-01-05 CN CN202220014166.9U patent/CN215763369U/en active Active
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