CN112429534A - Bridging-preventing negative-pressure suction material sending device for powder storage tank - Google Patents
Bridging-preventing negative-pressure suction material sending device for powder storage tank Download PDFInfo
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- CN112429534A CN112429534A CN202011341505.6A CN202011341505A CN112429534A CN 112429534 A CN112429534 A CN 112429534A CN 202011341505 A CN202011341505 A CN 202011341505A CN 112429534 A CN112429534 A CN 112429534A
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- 239000000463 material Substances 0.000 title claims abstract description 76
- 239000000843 powder Substances 0.000 title claims abstract description 56
- 238000003756 stirring Methods 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims description 4
- 230000007774 longterm Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/36—Arrangements of containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention provides a bridging-preventing negative-pressure suction and delivery device for a powder storage tank, which comprises: a transmitter housing, a stirring device; the transmitter shell is provided with a feeding port for connecting an external storage tank and a suction port for negative pressure pneumatic transmission; the material suction port is communicated with the interior of the transmitter shell; the stirring device is used for stirring the powder in the transmitter shell. The device of this scheme is through setting up agitating unit and stirs the powder material that sends the ware casing to this can be high-efficient and long-term avoid sending the powder material production bridging phenomenon in the ware casing.
Description
Technical Field
The invention relates to the technical field of powder storage tank structures used in the chemical industry, in particular to an anti-bridging negative-pressure suction and delivery device for a powder storage tank.
Background
The negative pressure pneumatic conveying system has wide application in the industries of materials, foods, chemical engineering and the like. During the negative pressure pneumatic conveying process of powder materials, the phenomenon of pipeline blockage due to bridging often occurs; particularly, in the transportation process, the powder materials need to be stored or transferred in the storage tank, so that the powder materials in the storage tank are inevitably layered and uneven.
In order to avoid above-mentioned phenomenon, also for ejection of compact and washing convenience simultaneously, the bridge shock dynamo can be installed and prevent to the general storage tank, through preventing the whole storage tank vibrations of bridge shock dynamo drive to alleviate the bridge phenomenon of preventing of powder material, but the effect of this kind of mode long-term use is unsatisfactory, the ability of preventing the bridge is limited on one hand, on the other hand shake for a long time also can let storage tank bottom material more closely knit, lead to the powder material can't carry out the negative pressure pneumatic conveying.
Thus, there is a need for a better solution to the problems of the prior art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an anti-bridging negative-pressure suction and delivery device for a powder storage tank. The device of this scheme is through setting up agitating unit, and the powder material that can high-efficient and long-term avoid sending in the ware casing takes place the bridging phenomenon.
Specifically, the present invention proposes the following specific examples:
the embodiment of the invention provides an anti-bridging negative-pressure suction and delivery device for a powder storage tank, which comprises: a transmitter housing, a stirring device; the transmitter shell is provided with a feeding port for connecting an external storage tank and a suction port for negative pressure pneumatic transmission; the material suction port is communicated with the interior of the transmitter shell; the stirring device is used for stirring the powder in the transmitter shell.
In a specific embodiment, the number of the material sucking ports is one or more; when the number of the material suction ports is multiple, the material suction ports are sequentially arranged on the transmitter shell from top to bottom; the central axis of each material suction port is tangent to the arc line of the inner wall of the transmitter shell.
In a specific embodiment, the stirring device comprises an anti-bridging stirring paddle and a power end; the anti-bridging stirring paddle is arranged inside the transmitter shell; the anti-bridging stirring paddle is connected with the power end.
In a specific embodiment, the apparatus further comprises: a connecting flange; the anti-bridging stirring paddle is connected with the power output shaft of the power end through the connecting flange.
In a specific embodiment, the anti-bridging paddle comprises: the device comprises a main shaft, a plurality of cross rods and a plurality of vertical rods; one end of each cross rod is connected with the main shaft; each vertical rod is connected with a plurality of cross rods; the main shaft is connected with a power output shaft of the power end.
In a specific embodiment, each of the cross bars and each of the vertical bars are tubular in shape.
In a specific embodiment, the apparatus further comprises: installing a flange; wherein, mounting flange sets up feed port, feed port passes through mounting flange connects external storage tank.
In a specific embodiment, the power end is a reduction motor.
In a specific embodiment, the transmitter housing is cylindrical in shape.
In a specific embodiment, the apparatus further comprises: a connecting pipe; the first end of the connecting pipe is detachably connected with the outlet of the material sucking port, and the connecting pipe is also provided with a valve; an air inlet is also formed between the first end and the valve on the connecting pipe; the air inlet is communicated with the connecting pipe.
In a specific embodiment, the apparatus further comprises: the external connecting pipe is detachably connected with a second end of the connecting pipe, and the second end is the end, far away from the first end, of the connecting pipe; the central axis of the external connecting pipe is an arc line.
Therefore, compared with the prior art, the scheme has the following technical effects:
this scheme is through preventing constantly stirring of bridging stirring rake in sending the ware casing for send the powder material in the ware casing to keep the state of motion, thereby avoid because the bridging phenomenon that the continuous extrusion of the reason of gravity leads to, meanwhile, the powder material of continuous motion also more does benefit to and inhales the suction process of feed inlet department because negative pressure effect, can high-efficient and long-term powder material of avoiding sending in the ware casing take place the bridging phenomenon.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic cross-sectional structure view of an anti-bridging negative-pressure suction sending device for a powder storage tank according to an embodiment of the present invention;
fig. 2 is an exploded view of an anti-bridging negative pressure suction sending device for a powder storage tank according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an anti-bridging negative-pressure suction sending device for a powder storage tank according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a transmitter housing in the anti-bridging negative-pressure suction transmitting device for the powder storage tank according to the embodiment of the invention;
fig. 5 is a schematic structural diagram of a transmitter housing in the anti-bridging negative-pressure suction transmitting device for the powder storage tank according to the embodiment of the invention;
fig. 6 is a schematic structural diagram of a transmitter housing in the anti-bridging negative-pressure suction transmitting device for the powder storage tank according to the embodiment of the invention;
fig. 7 is a schematic structural diagram of a connection between a power end and a bridging-prevention stirring paddle in the bridging-prevention negative-pressure material suction and sending device for the powder storage tank according to the embodiment of the invention;
fig. 8 is a schematic structural diagram of a connecting pipe in the anti-bridging negative-pressure suction sending device for the powder storage tank according to the embodiment of the present invention;
fig. 9 is a schematic structural diagram of an external connection pipe in the bridging-prevention negative-pressure suction sending device for the powder storage tank according to the embodiment of the present invention.
Illustration of the drawings:
1-a transmitter housing; 11-a feed port; 12-a material sucking port;
10-a stirring device;
2-a power end; 21-a power output shaft;
3-bridge formation prevention stirring paddle; 31-a main shaft; 32-a cross-bar; 33-vertical bar;
4-a sealing assembly; 5-a connecting flange; 6-mounting a flange;
7-connecting pipe; 71-a first end; 72-a valve; 73-air inlet; 74-a second end;
8-external connection pipe;
9-external material storage tank.
Detailed Description
Various embodiments of the present disclosure will be described more fully hereinafter. The present disclosure is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit the various embodiments of the disclosure to the specific embodiments disclosed herein, but rather, the disclosure is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of the various embodiments of the disclosure.
The terminology used in the various embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the present disclosure. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present disclosure belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined in various embodiments of the present disclosure.
Examples
The embodiment of the invention discloses an anti-bridging negative pressure suction and delivery device for a powder storage tank, which comprises: a transmitter housing 1, a stirring device 10; the transmitter shell 1 is provided with a feeding port 11 for connecting an external storage tank 9 and a suction port 12 for negative pressure pneumatic transmission; the material suction port 12 is communicated with the interior of the transmitter shell 1; the stirring device 10 is used for stirring the powder in the transmitter housing 1. Set up agitating unit with this, constantly stir the powder material in sending the ware casing 1, compare in prior art, this scheme is simple and energy-conserving relatively, has realized that high efficiency and long-term avoiding sends the powder material in the ware casing 1 and produces the bridging phenomenon.
Further, the stirring device 10 comprises an anti-bridging stirring paddle 3 and a power end 2; the anti-bridging stirring paddle 3 is arranged inside the transmitter shell 1; the anti-bridging stirring paddle 3 is connected with the power end 2.
As for the power end 2, it can be arranged at the bottom of the transmitter housing 1 as shown in fig. 1 or 2, and besides, it can also be arranged at the side of the transmitter housing 1, for example, and is connected with the anti-bridging paddle 3 through a power transmission device, such as a gear set; in addition, the power end 2 can also be not directly connected with the transmitter shell 1, the power end 2 can be independently arranged, for example, fixed on the ground, and the power output shaft 21 of the power end 2 is connected with the anti-bridging stirring paddle 3 through a power transmission device such as a power synchronous belt.
Thus, as shown in fig. 1-3, the entire device may include: the device comprises a transmitter shell 1, a power end 2 and an anti-bridging stirring paddle 3; wherein, the upper part of the transmitter shell 1 is provided with a feeding port 11 for connecting an external storage tank 9; a plurality of material sucking ports 12 for negative pressure pneumatic transmission are arranged on the transmitter shell 1; each material suction port 12 is communicated with the inside of the transmitter shell 1; the anti-bridging stirring paddle 3 is arranged in the transmitter shell 1, and the anti-bridging stirring paddle 3 is connected with the power end 2.
Specifically, in practical application, the powder material in the external storage tank 9 enters into the transmitter casing 1 through the feeding port 11, in this case, through starting the power end 2, the power output shaft 21 of the power end 2 rotates, and then the anti-bridging stirring paddle 3 is driven to rotate in the transmitter casing 1, so as to stir the powder material through the anti-bridging stirring paddle 3, so that the powder material keeps a rotating state, and further the bridging phenomenon is avoided, and the output shaft 21 of the power end 2 and the bottom of the transmitter casing 1 can be connected through the sealing component 4 in a sealing manner, so as not to cause the powder material to leak, and the specific sealing component 4 can be a sealing ring or other components capable of realizing sealing. And the mode of preventing bridging stirring rake 3 through the drive of power end 2 compares in the vibrations of the whole storage tank of drive, can practice thrift the cost greatly.
The bridging-preventing stirring paddle 3 is stirred in the transmitter shell 1, bridging of powder materials is avoided, furthermore, a suction port 12 for negative pressure pneumatic conveying is further arranged in the scheme of the application, the powder materials are sucked from the suction port 12 through negative pressure, and the number of the suction port 12 is one or more; the scheme of this application is provided with a plurality of material mouths 12 of inhaling that are used for absorbing the powder material to this from sending a ware casing 1 to a plurality of material mouths 12 of inhaling, realize the negative pressure pneumatic transport of a point to a plurality of points, can effectively promote the efficiency of absorption.
In addition, as shown in fig. 4-6, the cross section of the transmitter housing 1 in the horizontal direction is circular, so that the bridging-preventing stirring paddle 3 can further promote the suction port 12 to suck the powder material by using the centrifugal force when stirring.
In order to better absorb the powder material from the material suction ports 12, when the number of the material suction ports 12 is multiple, the material suction ports 12 are sequentially arranged on the transmitter shell 1 from top to bottom; the central axis of each suction opening 12 is tangent to the inner wall arc of the transmitter housing 1. It is specific, inhale material mouthful 12 and can be provided with 2 rows, every row inhale material mouthful 12 from last down perpendicular setting in proper order on sending the circular arc side of ware casing 1, each cross-section of inhaling material mouthful 12 is circular, each is inhaled the center connection of the circular cross-section of material mouthful 12 and is the central axis, with this the central axis of inhaling material mouthful 12 through setting up is tangent with the inner wall arc that sends the ware casing 1, also be tangent with the circular arc that sends the cross-section edge of ware casing 1 on the horizontal plane direction, with this resistance when doing benefit to the reduction and inhaling the material, it is smooth and easy to have guaranteed to inhale the material, the efficiency of inhaling the material has been.
In a specific embodiment, in order to facilitate maintenance of the anti-bridging paddle 3, as shown in fig. 7, the apparatus in this embodiment further includes: a connecting flange 5; the anti-bridging stirring paddle 3 is connected with a power output shaft 21 of the power end 2 through a connecting flange 5. Concretely, through flange 5, realize power end 2's power output shaft 21 with prevent being connected of bridging stirring rake 3, can be convenient through dismantling flange 5, realize output shaft 21 with prevent disassembling of bridging stirring rake 3, do benefit to and change and maintain and prevent bridging stirring rake 3 to this further can guarantee the long-term steady operation of whole device.
In one embodiment, as shown in fig. 1 and 7, the anti-bridging paddle 3 includes: a main shaft 31, a plurality of cross bars 32, a plurality of vertical bars 33; wherein, one end of each cross bar 32 is connected with the main shaft 31; each vertical rod 33 is connected with a plurality of cross rods 32; the main shaft 31 is connected to the power take-off shaft 21 of the power end 2. Specifically, the power output shaft 21 of the power end 2 is connected through the main shaft 31, power driving is achieved, the transverse rod 32 and the vertical rod 33 are further driven, powder materials are cut and stirred in the transmitter shell 1, and therefore the bridging phenomenon of the powder materials can be well prevented while stirring resistance is reduced.
Further, each of the cross bars 32 and each of the vertical bars 33 are tubular in shape. Specifically, the cross rod 32 and the vertical rod 33 are both designed in a tubular shape, and the surface is smooth, so that friction with powder materials can be reduced, powder is prevented from being generated as far as possible, and the quality of the powder materials is guaranteed.
In a specific embodiment, as shown in fig. 6, the apparatus further comprises: mounting a flange 6; wherein, mounting flange 6 sets up the top at feedstock port 11, and feedstock port 11 passes through mounting flange 6 and connects external storage tank 9. Specifically through being connected of mounting flange 6 and external storage tank 9, for example in the practical application scene as shown in fig. 1, be connected through mounting flange 6 and the bottom of external storage tank 9, the mounting means is simple, makes things convenient for the different external storage tank 9 of adaptation, does benefit to subsequent maintenance and disassembles.
In a specific embodiment, the power end 2 may be a motor, and may also be, for example, a gasoline engine, a diesel engine, and the like, and the power end 2 may be disposed on the transmitter housing 1, for example, may be disposed at the bottom of the transmitter housing 1, or may not be directly connected to the transmitter object 1, but the power output shaft 21 of the power end 2 is connected to the anti-bridging propeller 3 through another transmission mechanism, for example, a gear set or a power belt, so as to drive the anti-bridging propeller 3. Preferably, a reduction motor can be selected as the power end 2.
The speed reducing motor has the advantages of being high in efficiency and reliability, long in service life, simple and convenient to maintain, wide in application range, high in integration level, space-saving, reliable and durable, high in overload bearing capacity, low in energy consumption, superior in performance and high in speed reducing efficiency which is up to more than 95%.
Further, the transmitter housing 1 is cylindrical in shape. Specifically, through adopting columniform and sending ware casing 1, can further reduce the resistance of preventing stirring rake 3 that bridges, do benefit to the powder material and be inhaled material 12 and absorb.
In a specific embodiment, as shown in fig. 2, 3 and 8, the apparatus further comprises: a connecting pipe 7; wherein, the first end 71 of the connecting pipe 7 is detachably connected with the outlet of the material suction port 12, and the connecting pipe 7 is also provided with a valve 72; an air inlet 73 is also arranged between the first end 71 and the valve 72 on the connecting pipe 7; the air inlet 73 is communicated with the connection pipe 7.
Specifically, the connection pipe 7 is connected with the material suction ports 12, so that the sucked powder material can be guided out, and the connection pipe 7 is provided with a valve 72 and an air inlet 73, in this case, if the anti-bridging effect needs to be further improved, the valve 72 can be temporarily closed to stop the sucking operation, and the air inlet 73 reversely charges air into the material suction ports 12, so that the anti-bridging capacity is further improved through the charged air, in addition, the material suction ports 12 are provided in a plurality and have different positions, so that the material suction ports 12 in different positions can be selected to perform the inflation operation, and one or more material suction ports 12 and the corresponding connection pipe 7 can be selected to perform the inflation operation according to the condition of the powder material in the transmitter shell 1.
In a specific embodiment, as shown in fig. 2, 3 and 9, the apparatus further comprises: the external connection pipe 8, wherein the external connection pipe 8 is detachably connected with a second end 74 of the connection pipe 7, and the second end 74 is the end of the connection pipe 7 far away from the first end 71; the central axis of the outer connecting pipe 8 is an arc line.
In order to further guide out the sucked powder material, an external connection pipe 8 is further arranged in the scheme of the application, the sucked powder material can be further guided out through the external connection pipe 8, and in consideration of the volume of the transmitter shell 1, a plurality of suction ports 12 are arranged on the transmitter shell 1, in order to facilitate the conveying operation after suction, the external connection pipe 8 is an arc-shaped pipe, so that through angle adjustment, for example, as shown in fig. 3, 4 external connection pipes 8 are arranged, the external connection pipe 8 is provided with two ends which are respectively a first external connection end and a second external connection end, wherein the first external connection end is connected with a connection pipe 7; since the external tubes 8 are arc-shaped tubes, the second external connection ends of the four external tubes 8 can be dispersed by rotating the first external connection end, for example, the position of the second external connection end can be adjusted by rotating the first external connection end, for example, the 4 external tubes 8 shown in fig. 3 can be sequentially adjusted from top to bottom, for example, the second external connection end of the external tube 8 located at the top can be upward; the second external connection end of the second external connection tube 8 can face to the left, the second external connection end of the third external connection tube 8 can face to the right, and the second external connection end of the external connection tube 8 positioned at the lowest position can face downwards; compared with the external connecting pipes 8 in the form of 4 straight pipes, outlets of the adjacent external connecting pipes 8 are spaced farther apart, and in one example, for example, the outlets of the external connecting pipes 8 are connected with using devices of powder materials, and the arrangement of the arc-shaped pipes is adopted, so that a plurality of using devices can be connected more conveniently; therefore, the three-dimensional space can be fully utilized to lead out the absorbed powder material, and the inconvenience caused by the fact that the devices are all crowded together is avoided.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above-mentioned invention numbers are merely for description and do not represent the merits of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. The utility model provides a powder storage tank prevents that bridging negative pressure inhales material sending device which characterized in that includes: a transmitter housing, a stirring device; the transmitter shell is provided with a feeding port for connecting an external storage tank and a suction port for negative pressure pneumatic transmission; the material suction port is communicated with the interior of the transmitter shell; the stirring device is used for stirring the powder in the transmitter shell.
2. The device of claim 1, wherein the number of the suction ports is one or more; when the number of the material suction ports is multiple, the material suction ports are sequentially arranged on the transmitter shell from top to bottom; the central axis of each material suction port is tangent to the arc line of the inner wall of the transmitter shell.
3. The apparatus of claim 1, wherein the stirring device comprises an anti-bridging stirring paddle and a power end; the anti-bridging stirring paddle is arranged inside the transmitter shell; the anti-bridging stirring paddle is connected with the power end.
4. The apparatus of claim 3, further comprising: a connecting flange; the anti-bridging stirring paddle is connected with the power output shaft of the power end through the connecting flange.
5. The apparatus of claim 3, wherein the bridge-preventing paddle comprises: the device comprises a main shaft, a plurality of cross rods and a plurality of vertical rods; one end of each cross rod is connected with the main shaft; each vertical rod is connected with a plurality of cross rods; the main shaft is connected with a power output shaft of the power end.
6. The device of claim 5, wherein each of the cross-bars and each of the vertical bars are tubular in shape.
7. The apparatus of claim 1, further comprising: installing a flange; wherein, mounting flange sets up feed port, feed port passes through mounting flange connects external storage tank.
8. The apparatus of claim 1, wherein the power end is a reduction motor; the transmitter housing is cylindrical in shape.
9. The apparatus of claim 1, further comprising: a connecting pipe; the first end of the connecting pipe is detachably connected with the outlet of the material sucking port, and the connecting pipe is also provided with a valve; an air inlet is also formed between the first end and the valve on the connecting pipe; the air inlet is communicated with the connecting pipe.
10. The apparatus of claim 9, further comprising: the external connecting pipe is detachably connected with a second end of the connecting pipe, and the second end is the end, far away from the first end, of the connecting pipe; the central axis of the external connecting pipe is an arc line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011341505.6A CN112429534A (en) | 2020-11-25 | 2020-11-25 | Bridging-preventing negative-pressure suction material sending device for powder storage tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011341505.6A CN112429534A (en) | 2020-11-25 | 2020-11-25 | Bridging-preventing negative-pressure suction material sending device for powder storage tank |
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| CN112429534A true CN112429534A (en) | 2021-03-02 |
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| CN202011341505.6A Pending CN112429534A (en) | 2020-11-25 | 2020-11-25 | Bridging-preventing negative-pressure suction material sending device for powder storage tank |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203699054U (en) * | 2013-12-17 | 2014-07-09 | 无锡斯库派斯机械设备有限公司 | Feeding machine |
| CN209956962U (en) * | 2019-04-30 | 2020-01-17 | 成都市苏春汽车零部件有限公司 | Vacuum conveyor |
| CN210339572U (en) * | 2019-06-10 | 2020-04-17 | 江苏民扬塑胶科技有限公司 | Negative pressure that can stir inhales material equipment |
| CN213976088U (en) * | 2020-11-25 | 2021-08-17 | 金发科技股份有限公司 | Bridging-preventing negative-pressure suction material sending device for powder storage tank |
-
2020
- 2020-11-25 CN CN202011341505.6A patent/CN112429534A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203699054U (en) * | 2013-12-17 | 2014-07-09 | 无锡斯库派斯机械设备有限公司 | Feeding machine |
| CN209956962U (en) * | 2019-04-30 | 2020-01-17 | 成都市苏春汽车零部件有限公司 | Vacuum conveyor |
| CN210339572U (en) * | 2019-06-10 | 2020-04-17 | 江苏民扬塑胶科技有限公司 | Negative pressure that can stir inhales material equipment |
| CN213976088U (en) * | 2020-11-25 | 2021-08-17 | 金发科技股份有限公司 | Bridging-preventing negative-pressure suction material sending device for powder storage tank |
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