CN217996038U

CN217996038U - Anti-blocking automatic blowing aid device for pneumatic conveying

Info

Publication number: CN217996038U
Application number: CN202221510152.2U
Authority: CN
Inventors: 戴一鸣
Original assignee: Anhui Aipux Intelligent Technology Co ltd
Current assignee: Anhui Aipux Intelligent Technology Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-12-09
Anticipated expiration: 2032-06-13

Abstract

The utility model relates to a pneumatic conveying technical field discloses a prevent stifled automatic ware that blows that helps for pneumatic conveying, the upper portion port of integrated into one piece shell is connected with the malleation air inlet, and the bottom port of integrated into one piece shell is connected with the flange seat, the bottom port of flange seat is connected with the back pressure air inlet, the cavity inboard of integrated into one piece shell is provided with helps blows the mechanism. The utility model discloses replaced the manual form of knocking, dismantling the pipeline in order to reach the mediation putty of tradition, had mechanical automation characteristic, need not power supplies such as other atmospheric pressure, hydraulic pressure, electronic, had saving equipment cost on the one hand, the product parameterization is high, can adjust characteristics such as the pressure value that match according to the on-the-spot condition, and on the other hand can reduce staff's intensity of labour, improves mediation efficiency, and it is long when sparingly dredging.

Description

Anti-blocking automatic blowing aid device for pneumatic conveying

Technical Field

The utility model relates to a pneumatic conveying technical field, in particular to prevent stifled automatic ware of blowing that helps for pneumatic conveying.

Background

The pneumatic conveying can be roughly divided into two types, namely suction type and pressure type according to the working principle, wherein the suction type pneumatic conveying is to suck the atmosphere and the materials into a pipeline together and convey the materials by using air flow with low air pressure, so the pneumatic conveying is also called vacuum suction conveying, the pressure type pneumatic conveying is to push the materials to convey by using compressed air with the pressure higher than the atmospheric pressure, the pneumatic conveying is widely applied to the industries of casting, chemical engineering, medicine and grain, the situation that the powder is easy to accumulate and block in the conveying pipeline during the process of conveying the powder by pneumatic conveying, when the powder is blocked, the conveying pipeline needs to be dredged in time, the traditional dredging mode is mostly manually checked by people, and after the corresponding dredging position is checked, the piled materials are dredged by adopting modes of vibration knocking, dismounting and the like.

The existing anti-blocking dredging operation for the pneumatic conveying pipeline is complex, on one hand, the labor amount is high, a large amount of manpower and material resources need to be consumed, on the other hand, the time consumption is long, and the normal conveying work of powder is influenced. Therefore, the technical personnel in the field provide an anti-blocking automatic blowing aid for pneumatic transmission to solve the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a prevent stifled automatic ware of blowing of helping for air conveying, can effectively solve the current in the background art to prevent stifled mediation work operation comparatively loaded down with trivial details for air conveying pipeline, the one side amount of labour is high in one of them, need consume a large amount of manpower and materials, and on the other hand is extremely long consuming time again, influences the problem of the normal transport work of powder.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an anti-blocking automatic blowing aid device for pneumatic conveying comprises an integrally formed shell, wherein a positive pressure air inlet is connected to an upper port of the integrally formed shell, a flange seat is connected to a bottom port of the integrally formed shell, a back pressure air inlet is connected to a bottom port of the flange seat, and a blowing aid mechanism is arranged on the inner side of a cavity of the integrally formed shell;

assist and blow the mechanism and include from last to offering in proper order at inboard malleation cavity, water conservancy diversion cavity, the back pressure cavity of integrated into one piece shell down, the inboard of water conservancy diversion cavity is run through the block and is had the lift guide arm, the top output of lift guide arm is just being provided with seal ring to the inboard of malleation cavity, the top of going up seal ring is connected with compression spring, the bottom output of lift guide arm is just being provided with down seal ring to the inboard of back pressure cavity, one side of malleation cavity is located bottom position department and has seted up first drainage channel, the inboard embedding of port of first drainage channel is twisted and is closed and sticiss the screw rod, one side of water conservancy diversion cavity is located middle part position department and has seted up second drainage channel, first drainage channel passes through water conservancy diversion channel switch-on connection with second drainage channel, the blow vent of water conservancy diversion channel extends to the inboard of back pressure cavity.

As the utility model discloses further scheme again: the inner wall of the first drainage channel is provided with an internal thread matched with the compression screw, and the length of the compression screw is the same as that of the pipeline of the first drainage channel.

As the utility model discloses further scheme again: the first drainage channel and the second drainage channel are symmetrically arranged with the flow guide channel at an included angle of ninety degrees.

As a further aspect of the present invention: the upper sealing washer and the lower sealing washer are both of annular structures, and both the upper sealing washer and the lower sealing washer are made of NBR materials.

As a further aspect of the present invention: the spiral outer diameter of the compression spring is matched with the inner diameter of the positive pressure chamber in a similar mode, and the upper sealing washer is elastically clamped with the positive pressure chamber through the compression spring.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses replaced the manual form of knocking, dismantling the pipeline in order to reach the mediation putty of tradition, had mechanical automation characteristic, need not power supplies such as other atmospheric pressure, hydraulic pressure, electronic, had saving equipment cost on the one hand, the product parameterization is high, can adjust characteristics such as the pressure value that match according to the on-the-spot condition, and on the other hand can reduce staff's intensity of labour, improves mediation efficiency, and it is long when sparingly dredging.

Drawings

FIG. 1 is a schematic structural view of an anti-blocking automatic blowing aid for pneumatic transmission according to the present invention;

FIG. 2 is a cross-sectional view of the anti-blocking automatic blowing aid for pneumatic transmission of the present invention;

fig. 3 is a schematic plan view of the anti-blocking automatic blowing aid for pneumatic transmission of the present invention.

In the figure: 1. integrally forming a housing; 2. a positive pressure air inlet; 3. a flange seat; 4. a back pressure air inlet; 5. a compression spring; 6. an upper sealing washer; 7. a lifting guide rod; 8. a lower sealing gasket; 9. tightly pressing the screw; 10. a first drainage channel; 11. a second drainage channel; 12. a flow guide channel; 13. a positive pressure chamber; 14. a flow-guiding chamber; 15. a back pressure chamber.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, an anti-blocking automatic blowing aid for pneumatic transmission comprises an integrally formed housing 1, a positive pressure air inlet 2 is connected to an upper port of the integrally formed housing 1, a flange seat 3 is connected to a bottom port of the integrally formed housing 1, a back pressure air inlet 4 is connected to a bottom port of the flange seat 3, a blowing aid mechanism is arranged on the inner side of a chamber of the integrally formed housing 1, the blowing aid mechanism comprises a positive pressure chamber 13, a flow guide chamber 14 and a back pressure chamber 15 which are sequentially arranged on the inner side of the integrally formed housing 1 from top to bottom, a lifting guide rod 7 is clamped on the inner side of the flow guide chamber 14 in a penetrating manner, an upper sealing washer 6 is arranged on the inner side of the positive pressure chamber 13 at the top output end of the lifting guide rod 7, a compression spring 5 is connected to the top end of the upper sealing washer 6, the outer diameter of the compression spring 5 is similar to the inner diameter of the chamber of the positive pressure chamber 13, go up seal ring 6 and pass through compression spring 5 and malleation cavity 13 elasticity block, after the powder is washed out, high-pressure gas in the pipeline releases pressure in the twinkling of an eye, malleation cavity 13 simultaneously, water conservancy diversion cavity 14, the synchronous pressure release of high-pressure gas in the counter pressure cavity 15, with high-pressure gas in the pipeline keep dynamic balance, then go up seal ring 6, the thrust reversal pressure that lower seal ring 8 received disappears, reset under compression spring 5, the gland is at the interface end of malleation cavity 13 and water conservancy diversion cavity 14 again in proper order, the blow vent of flange seat 3, carry out sealed isolation once more to powder conveying path, then the staff will sticis in screw rod 9 screws back to in first drainage path 10, make the malleation gas in the malleation cavity 13 exert vertical decurrent pressure to two sets of seal ring, ensure the stability of two sets of seal ring sealing gland.

The bottom output end of the lifting guide rod 7 is provided with a lower sealing washer 8 just opposite to the inner side of the back pressure chamber 15, the upper sealing washer 6 and the lower sealing washer 8 are both of an annular structure, the upper sealing washer 6 and the lower sealing washer 8 are both made of NBR (nitrile butadiene rubber) components, in the installation and use process of the anti-blocking automatic blowing aid, a worker connects the automatic blowing aid with a powder conveying channel through the back pressure air inlet 4, the installation distance between two adjacent groups of automatic blowing aids is not higher than 50m, after the installation is finished, proper air pressure is conveyed to the positive pressure chamber 13 through the positive pressure air inlet 2, the air pressure is kept the same as the air pressure in the powder conveying channel, then the upper sealing washer 6 is hermetically pressed at the interface end positions of the positive pressure chamber 13 and the diversion chamber 14 through the elastic downward pressure of the compression spring 5 and the downward pressure of the air pressure, the lower sealing washer 8 is synchronously pushed through the lifting guide rod 7, and is hermetically pressed at the air vent position of the flange seat 3, and the powder conveying channel is hermetically isolated.

One side of the positive pressure chamber 13 is positioned at the bottom end and is provided with a first drainage channel 10, the inner side of the port of the first drainage channel 10 is embedded and screwed with a compression screw 9, one side of the diversion chamber 14 is positioned at the middle part and is provided with a second drainage channel 11, the first drainage channel 10 and the second drainage channel 11 are in conduction connection through a diversion channel 12, the vent of the diversion channel 12 extends to the inner side of the back pressure chamber 15, the inner wall of the first drainage channel 10 is provided with an internal thread matched with the compression screw 9, the length of the screw of the compression screw 9 is the same as that of the pipeline of the first drainage channel 10, the first drainage channel 10 and the second drainage channel 11 are symmetrically arranged with the diversion channel 12 at an included angle of ninety degrees, when the powder conveying channel is blocked, the air pressure generated by the blockage of the powder conveying channel is higher than the normal pressure value, and then the high-pressure air overcomes the lower pressure of the lower sealing gasket 8, pushing the lower sealing washer 8 open, reversely filling the lower sealing washer 8 into the reverse pressure chamber 15, pushing the lower sealing washer 8 upward by the high-pressure gas in the reverse pressure chamber 15, enabling the positive pressure chamber 13, the guide chamber 14 and the reverse pressure chamber 15 to be in a mutual conduction state by the high-pressure gas flowing into the guide channel 12 and being guided into the guide chamber 14 through the second guide channel 11, applying a secondary upward pushing force to the upper sealing washer 6, screwing the pressing screw 9 out of the first guide channel 10 by a worker, enabling the first guide channel 10 to be in a conduction state with the guide channel 12, further enabling the worker to convey the positive pressure gas into the positive pressure chamber 13 through the positive pressure gas inlet 2, enabling a part of the positive pressure gas to be pressed into the powder conveying channel through the first guide channel 10, the guide channel 12 and the reverse pressure chamber 15 sequentially, and enabling the other part of the positive pressure gas to sequentially pass through the second guide channel 11, the diversion channel 12 and the back pressure chamber 15 are pressed into the powder conveying channel, and the powder blocked in the conveying pipeline is flushed away by continuously applying positive pressure.

The utility model discloses a theory of operation does: during the installation and use of the anti-blocking automatic blowing aid, a worker connects the automatic blowing aid with a powder conveying channel through a back pressure air inlet 4, the installation distance between two adjacent groups of automatic blowing aids is not higher than 50m, after the installation is finished, proper air pressure is conveyed to a positive pressure chamber 13 through a positive pressure air inlet 2, the air pressure is kept the same as the air pressure in the powder conveying channel, then an upper sealing washer 6 is sealed and pressed at the interface end position of the positive pressure chamber 13 and a diversion chamber 14 through the elastic downward pressure of a compression spring 5 and the downward pressure of the air pressure, the lower sealing washer 8 is synchronously pushed and lifted through a lifting guide rod 7, the lower sealing washer 8 is sealed and pressed at the air vent position of a flange seat 3, the powder conveying channel is sealed and isolated, however, when the blockage condition occurs in the powder conveying channel, the air pressure generated by the blockage of the powder conveying channel is higher than the normal pressure value, then the high-pressure gas overcomes the downward pressure of the lower sealing washer 8, the lower sealing washer 8 is pushed open and reversely charged into the back pressure chamber 15, the high-pressure gas in the back pressure chamber 15 pushes the lower sealing washer 8 to push upwards, on the other hand, the high-pressure gas circulates into the flow guide channel 12 and is guided into the flow guide chamber 14 through the second flow guide channel 11, the upper sealing washer 6 is pushed upwards again, so that the positive pressure chamber 13, the flow guide chamber 14 and the back pressure chamber 15 are kept in a mutual conduction state, then the worker screws the pressing screw 9 out of the first flow guide channel 10, so that the first flow guide channel 10 and the flow guide channel 12 are kept in a conduction state, further workers convey the positive pressure gas into the positive pressure chamber 13 through the positive pressure gas inlet 2, and a part of the positive pressure gas is pressed into the powder conveying channel through the first flow guide channel 10, the flow guide channel 12 and the back pressure chamber 15 in sequence, the other part of the positive pressure gas is pressed into the powder conveying channel through the second drainage channel 11, the flow guide channel 12 and the back pressure chamber 15 in sequence, the powder blocked in the conveying pipeline is flushed away by continuously applying the positive pressure, after the powder is flushed away, the high pressure gas in the conveying pipeline is instantly decompressed, meanwhile, the high pressure gas in the positive pressure chamber 13, the flow guide chamber 14 and the back pressure chamber 15 is synchronously decompressed, the high pressure gas in the conveying pipeline keeps dynamic balance, then the back thrust pressure borne by the upper sealing washer 6 and the lower sealing washer 8 disappears, the pressure is restored under the reset of the compression spring 5, the pressure covers are sequentially resealed at the interface ends of the positive pressure chamber 13 and the flow guide chamber 14 and the air vents of the flange seat 3, the powder conveying channel is resealed and isolated, then the worker screws the pressing screw 9 into the first drainage channel 10, so that the positive pressure gas in the positive pressure chamber 13 applies vertical downward pressure to the two groups of sealing washers, and the stability of the two groups of sealing washer sealing pressure covers is ensured.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An anti-blocking automatic blowing-assisting device for pneumatic conveying comprises an integrally-formed shell (1), and is characterized in that a positive-pressure air inlet (2) is connected to an upper port of the integrally-formed shell (1), a flange seat (3) is connected to a bottom port of the integrally-formed shell (1), a back-pressure air inlet (4) is connected to a bottom port of the flange seat (3), and a blowing-assisting mechanism is arranged on the inner side of a cavity of the integrally-formed shell (1);

assist and blow the mechanism and include from last to offering in proper order under malleation cavity (13), water conservancy diversion cavity (14), back pressure cavity (15) that integrated into one piece shell (1) is inboard, the inboard of water conservancy diversion cavity (14) runs through the block and has lift guide arm (7), the top output of lift guide arm (7) is just being provided with seal ring (6) to the inboard of malleation cavity (13), the top of going up seal ring (6) is connected with compression spring (5), the bottom output of lift guide arm (7) is just being provided with down seal ring (8) to the inboard of back pressure cavity (15), one side of malleation cavity (13) is located bottom position department and has seted up first drainage channel (10), the inboard embedding of port of first drainage channel (10) is twisted and is closed sticis screw rod (9), one side of water conservancy diversion cavity (14) is located middle part position department and has seted up second drainage channel (11), first drainage channel (10) and second drainage channel (11) are through water conservancy diversion channel (12) turn-on connection, the blow vent of water conservancy diversion channel (12) extends to the inboard of back pressure cavity (15).

2. The automatic anti-blocking blowing aid for pneumatic transmission according to claim 1, wherein the inner wall of the first drainage channel (10) is provided with internal threads matched with the compression screw (9), and the length of the compression screw (9) is the same as the length of the first drainage channel (10).

3. The automatic anti-blocking blowing aid device for pneumatic transmission according to claim 1, wherein the first drainage channel (10) and the second drainage channel (11) are symmetrically arranged with the flow guide channel (12) at an included angle of ninety degrees.

4. The automatic anti-blocking blowing aid for pneumatic transmission as recited in claim 1, wherein the upper sealing washer (6) and the lower sealing washer (8) are both ring structures, and the upper sealing washer (6) and the lower sealing washer (8) are both made of NBR material.

5. The automatic anti-blocking blowing aid device for pneumatic transmission according to claim 1, wherein the outer diameter of the spiral of the compression spring (5) is matched with the inner diameter of the positive pressure chamber (13), and the upper sealing washer (6) is elastically clamped with the positive pressure chamber (13) through the compression spring (5).