CN220282318U - Intermittent arch breaking quantitative powder feeding device - Google Patents
Intermittent arch breaking quantitative powder feeding device Download PDFInfo
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- CN220282318U CN220282318U CN202321449414.3U CN202321449414U CN220282318U CN 220282318 U CN220282318 U CN 220282318U CN 202321449414 U CN202321449414 U CN 202321449414U CN 220282318 U CN220282318 U CN 220282318U
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- 239000000843 powder Substances 0.000 title claims abstract description 124
- 238000003756 stirring Methods 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000007664 blowing Methods 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 230000003031 feeding effect Effects 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of industrial powder feeding, in particular to an intermittent arch breaking quantitative powder feeding device, which comprises a charging basket, a stirring assembly, a powder feeding assembly, a transmission assembly, a driving piece, a powder falling bin arranged at the bottom end of the charging basket and a powder outlet pipe arranged at the lower end of the powder falling bin, wherein the charging basket, the powder falling bin and the powder outlet pipe are respectively communicated; the driving piece respectively drives the powder feeding component to continuously rotate and the stirring component to intermittently rotate through the transmission component, the stirring component is used for intermittently stirring and breaking arch of dust in the powder falling bin, the powder feeding component is of a hollow variable pitch structure, and the powder feeding component is used for pushing out the dust falling into the powder discharging pipe from the powder falling bin. The utility model aims to provide an intermittent arch breaking quantitative powder feeding device, which has better powder feeding effect through the intermittent arch breaking design.
Description
Technical Field
The utility model relates to the technical field of industrial powder feeding, in particular to an intermittent arch breaking quantitative powder feeding device.
Background
Along with the progress and development of science and technology, dust sources in the industrial production process are gradually increased, and the risk of explosion exists in the process of intensively collecting and processing combustible dust, so that life and property safety are seriously threatened. Explosion venting, explosion suppression and inerting are common explosion prevention measures, and solid inerting refers to adding inert dust into combustible dust to destroy explosion conditions and prevent explosion accidents. The accurate quantitative, stable continuous adding of inert dust into combustible dust is the prerequisite of guaranteeing inerting explosion-proof effectiveness, and inert powder feeding device is an important inerting explosion-proof equipment, and the powder feeding is accomplished by using a screw. Due to the cohesiveness of dust, the powder feeding device is easy to generate arching, blockage and the like, so that unstable powder feeding and interruption of powder feeding are caused, and the production progress and inerting explosion-proof effectiveness are seriously affected.
In order to solve the problem of unstable powder feeding, auxiliary powder feeding measures, such as adding a stirrer, a vibrator, a pneumatic arch breaking structure and the like, are generally needed. The stirrer is generally arranged at the bottom of the bin above the screw rod, the screw rod finishes powder feeding while stirring, the stirrer rotates at a constant speed, and the risk of forming a cavity arch still exists around the stirrer; the vibrator is generally arranged at the bottom of the bin, dust is prevented from arching through mechanical vibration, but the risk of vibration compaction is increased; the pneumatic arch breaking is to open a hole in the bottom of the storage bin, and to introduce compressed gas to break the arch bridge by using the back blowing effect, but the arch breaking effect is only provided in the area around the air hole, and the risk of dust accumulation and blockage still exists in the position around the screw far from the air hole.
Disclosure of Invention
In order to overcome the defects and the shortcomings in the prior art, the utility model aims to provide the intermittent arch breaking quantitative powder feeding device, and the powder feeding effect is better through the intermittent arch breaking design.
The utility model is realized by the following technical scheme:
the intermittent arch breaking quantitative powder feeding device comprises a charging basket, a stirring assembly, a powder feeding assembly, a transmission assembly, a driving piece, a powder falling bin arranged at the bottom end of the charging basket and a powder discharging pipe arranged at the lower end of the powder falling bin, wherein the charging basket, the powder falling bin and the powder discharging pipe are respectively communicated; the driving piece respectively drives the powder feeding component to continuously rotate and the stirring component to intermittently rotate through the transmission component, the stirring component is used for intermittently stirring and breaking arch of dust in the powder falling bin, the powder feeding component is used for pushing out the dust in the powder falling bin falling into the powder outlet pipe, and the powder feeding component is of a hollow variable pitch structure.
The transmission assembly comprises a first gear, a second gear, a third gear, a fourth gear, a first transmission shaft and a second transmission shaft, wherein the first gear and the second gear are respectively in driving connection with the output end of the driving piece, the third gear is meshed with the first gear, the fourth gear is meshed with the second gear, the third gear is transmitted to the stirring assembly through the first transmission shaft, and the fourth gear is transmitted to the feeding assembly through the second transmission shaft;
the first gear is of a half-circle tooth structure.
The powder feeding assembly comprises a screw rod, and the screw rod is coaxially and rotatably connected with the second transmission shaft.
The screw rod is of a hollow structure, and a plurality of air blowing holes communicated with the inside of the screw rod are formed in the side wall of the screw rod;
the one end of screw rod that keeps away from drive assembly stretches out the powder union coupling, rotary joint is used for external air supply.
Wherein, a plurality of gas blowing holes evenly distribute between the screw teeth of screw rod.
One end of the screw protruding out of the powder outlet pipe is also provided with a rotary disc, and the rotary disc is provided with a groove; the powder outlet pipe is also provided with a detection device for counting the rotation times of the groove.
The screw tooth distance of the screw rod gradually decreases from one end close to the transmission assembly to the other end.
The stirring assembly comprises a first stirring blade, a second stirring blade and a rotating shaft, wherein the first stirring blade and the second stirring blade are symmetrically arranged on two sides of the rotating shaft about the center of the rotating shaft, and the rotating shaft is coaxially connected with the first transmission shaft in a rotating manner.
Wherein, first stirring leaf and second stirring leaf are hollow right triangle structure.
The utility model has the beneficial effects that:
according to the intermittent arch breaking quantitative powder feeding device, the stirring assembly and the powder feeding assembly are arranged at the bottom of the charging basket, the driving piece is driven by the driving assembly to respectively enable the stirring assembly to intermittently stir and break the powder in the charging basket, the powder feeding assembly pushes the powder in the charging basket out of the powder outlet pipe, intermittent movement arch breaking of the stirring assembly is achieved, the risk of cavity bridging caused by uniform movement of the stirring assembly is avoided, the hollow powder feeding assembly is subjected to back blowing through compressed air flow, the adhesion of the powder between screw threads can be avoided, the intermittent arch breaking effect is better, and meanwhile, due to the design of gradual pitch, the powder feeding accuracy is higher.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic view of a part of the internal structure of the present utility model.
Fig. 3 is a schematic structural view of the stirring assembly, the powder feeding assembly and the transmission assembly of the present utility model.
Reference numerals
Charging basket-100, powder outlet pipe-101, driving piece-102, frame-103, powder falling bin-104, vibrator-105, cover plate-106,
stirring assembly-200, first stirring blade-201, second stirring blade-202, rotating shaft-203,
powder feeding component-300, screw-301, screw-302, gas blowing hole-303, rotary joint-304, rotary disk-305, groove-306, detection device-307,
a transmission assembly-400, a first gear-401, a second gear-402, a third gear-403, a fourth gear-404, a first transmission shaft-405, a second transmission shaft-406.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model.
Along with the progress and development of science and technology, dust sources in the industrial production process are gradually increased, and the risk of explosion exists in the process of intensively collecting and processing combustible dust, so that life and property safety are seriously threatened. Explosion venting, explosion suppression and inerting are common explosion prevention measures, and solid inerting refers to adding inert dust into combustible dust to destroy explosion conditions and prevent explosion accidents. The accurate quantitative, stable continuous adding of inert dust into combustible dust is the prerequisite of guaranteeing inerting explosion-proof effectiveness, and inert powder feeding device is an important inerting explosion-proof equipment, and the powder feeding is accomplished by using a screw. Due to the cohesiveness of dust, the powder feeding device is easy to generate arching, blockage and the like, so that unstable powder feeding and interruption of powder feeding are caused, and the production progress and inerting explosion-proof effectiveness are seriously affected.
In order to solve the problem of unstable powder feeding, auxiliary powder feeding measures, such as adding a stirrer, a vibrator, a pneumatic arch breaking structure and the like, are generally needed. The stirrer is generally arranged at the bottom of the bin above the screw rod, the screw rod finishes powder feeding while stirring, the stirrer rotates at a constant speed, and the risk of forming a cavity arch still exists around the stirrer; the vibrator is generally arranged at the bottom of the bin, dust is prevented from arching through mechanical vibration, but the risk of vibration compaction is increased; the pneumatic arch breaking is to open a hole in the bottom of the storage bin, and to introduce compressed gas to break the arch bridge by using the back blowing effect, but the arch breaking effect is only provided in the area around the air hole, and the risk of dust accumulation and blockage still exists in the position around the screw far from the air hole.
In order to solve the above problems, the present embodiment discloses an intermittent arch breaking quantitative powder feeding device, the structure of which is shown in fig. 1 to 3, the powder feeding device comprises a charging basket 100, a stirring assembly 200, a powder feeding assembly 300, a transmission assembly 400, a driving piece 102, a powder falling bin 104 arranged at the bottom end of the charging basket 100 and a powder outlet pipe 101 arranged at the lower end of the powder falling bin 104, wherein the charging basket 100, the powder falling bin 104 and the powder outlet pipe 101 are respectively communicated; the driving piece 102 respectively drives the powder feeding assembly 300 to continuously rotate and the stirring assembly 200 to intermittently rotate through the transmission assembly 400, the stirring assembly 200 is used for intermittently stirring and breaking arches of dust falling into the powder falling bin 104, and the powder feeding assembly 300 is used for pushing out the dust falling into the powder discharging pipe 101 from the powder falling bin 104.
In this embodiment, the upper half of the charging basket 100 is of a funnel-shaped structure, the charging basket 100 and the powder outlet pipe 101 are both arranged in the frame 103, the upper end of the charging basket 100 protrudes out of the upper end of the frame 103, the powder falling bin 104 is positioned in the frame 103, one half of the powder outlet pipe 101 is positioned in the frame 103, and the other half protrudes out of the frame 103; a cover plate 106 is rotatably connected to the upper end of the charging basket 100, so that powder can be conveniently poured into the charging basket 100; the lower end of the charging basket 100 is of a conical structure, and the smaller end of the charging basket 100 is connected with the powder falling bin 104; the vibrator 105 is arranged on the outer side wall of the lower end of the charging basket 100, the vibrator 105 can be started at certain intervals, and the charging basket 100 is vibrated by the vibrator 105, so that a cavity formed in the charging basket 100 can be collapsed rapidly. The vibrator 105 may employ a GT pneumatic wheel vibrator 105.
Further, the transmission assembly 400 includes a first gear 401, a second gear 402, a third gear 403, a fourth gear 404, a first transmission shaft 405, and a second transmission shaft 406, where the first gear 401 and the second gear 402 are respectively in driving connection with the output end of the driving member 102, the third gear 403 is meshed with the first gear 401, the fourth gear 404 is meshed with the second gear 402, the third gear 403 is transmitted to the stirring assembly 200 through the first transmission shaft 405, and the fourth gear 404 is transmitted to the feeding assembly through the second transmission shaft; the first gear 401 has a half-circle tooth structure.
In actual use, the output end of the driving piece 102 is output to the first gear 401 and the second gear 402 through the speed reducer, and the driving piece 102 is preferably a motor; because the first gear 401 is of a half-circle tooth structure, the second gear 402, the third gear 403 and the fourth gear 404 are of a general full-circle tooth structure, the third gear 403 can rotate and stop intermittently in a rotation period in the process of rotating the first gear 401 and the second gear 402, so that intermittent motion arch breaking of the stirring assembly 200 is realized; and the powder feeding assembly 300 connected with the fourth gear 404 can continuously rotate to feed powder.
Specifically, the stirring assembly 200 includes a first stirring blade 201, a second stirring blade 202, and a rotating shaft 203, where the first stirring blade 201 and the second stirring blade 202 are symmetrically disposed on two sides of the rotating shaft 203 about the center of the rotating shaft 203, and the rotating shaft 203 is coaxially and rotatably connected with the first transmission shaft 405; preferably, the first stirring blade 201 and the second stirring blade 202 are hollow right triangle structures.
Further, the powder feeding assembly 300 includes a screw 301, and the screw 301 is coaxially and rotatably connected to a second transmission shaft 406. In this embodiment, the screw 301 has a hollow structure, and a plurality of blowholes 303 communicating with the inside of the screw 301 are provided on the side wall of the screw 301; one end of the screw 301, which is far away from the transmission assembly 400, protrudes out of the powder pipe 101 to be connected with a rotary joint 304, and the rotary joint 304 is used for externally connecting an air source.
Specifically, the screw 301 is communicated with an external air source through the rotary joint 304, compressed air flow is introduced, back blowing is carried out every certain time interval, and compact dust attached between the threads 302 of the screw 301 and compact dust accumulated around the screw 301 are blown off by the back blowing effect, so that stable and continuous powder feeding is ensured. Preferably, the plurality of blowing holes 303 are uniformly distributed between the flights 302 of the screw 301 to ensure a wider blowing range.
Specifically, one end of the screw 301 protruding out of the powder outlet pipe 101 is further provided with a rotary disc 305, and the rotary disc 305 is provided with a groove 306; the powder outlet pipe 101 is further provided with a detecting device 307 for counting the number of rotations of the groove 306. In this embodiment, the detecting device 307 is preferably a laser sensor, and in general, the laser generated by the laser sensor is directly emitted to the turntable 305 and then reflected, so as to know that the current screw 301 does not rotate one turn; after the groove 306 rotates to the position of the laser sensor, the laser sensor does not receive the reflected laser, and the controller electrically connected with the laser sensor can judge that the screw 301 rotates for one circle, so that an external air source can be controlled to introduce compressed air flow into the screw 301, and the screw 301 is blown with powder.
Further, the pitch of the screw teeth 302 of the screw 301 gradually decreases from one end close to the transmission assembly 400 to the other end, the larger pitch of the screw teeth 302 is more favorable for conveying dust to the powder dropping end, the smaller pitch of the screw teeth 302 is more favorable for controlling the powder conveying amount, and the accuracy of the powder conveying amount is improved.
In summary, according to the intermittent arch breaking quantitative powder feeding device disclosed by the utility model, the stirring assembly 200 and the powder feeding assembly 300 are arranged at the bottom of the charging basket, the driving piece 102 is driven by the driving assembly 400, so that the stirring assembly 200 is used for intermittently stirring and breaking dust in the charging basket 100, and meanwhile, the powder feeding assembly 300 is used for pushing the dust in the charging basket 100 out of the powder outlet pipe 101, so that the intermittent movement arch breaking of the stirring assembly 200 is realized, the risk of void bridging caused by uniform movement of the stirring assembly 200 is avoided, and the intermittent arch breaking effect is better.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (9)
1. The intermittent arch breaking quantitative powder feeding device comprises a charging basket, a powder falling bin arranged at the bottom end of the charging basket, and a powder discharging pipe arranged at the lower end of the powder falling bin, wherein the charging basket, the powder falling bin and the powder discharging pipe are respectively communicated;
the driving piece respectively drives the powder feeding component to continuously rotate and the stirring component to intermittently rotate through the transmission component, the stirring component is used for intermittently stirring and breaking arch of dust in the powder falling bin, and the powder feeding component is used for pushing out the dust falling into the powder discharging pipe from the powder falling bin.
2. The intermittent arch breaking quantitative powder feeding device according to claim 1, wherein the transmission assembly comprises a first gear, a second gear, a third gear, a fourth gear, a first transmission shaft and a second transmission shaft, the first gear and the second gear are respectively in driving connection with the output end of the driving piece, the third gear is meshed with the first gear, the fourth gear is meshed with the second gear, the third gear is transmitted to the stirring assembly through the first transmission shaft, and the fourth gear is transmitted to the feeding assembly through the second transmission shaft; the first gear is of a half-circle tooth structure.
3. The intermittent arch breaking quantitative powder feeding device according to claim 2, wherein the powder feeding assembly comprises a screw rod, and the screw rod is coaxially and rotatably connected with the second transmission shaft.
4. The intermittent arch breaking quantitative powder feeding device according to claim 3, wherein the screw is of a hollow structure, and a plurality of air blowing holes communicated with the inside of the screw are formed in the side wall of the screw;
the one end of screw rod that keeps away from drive assembly stretches out the powder union coupling, rotary joint is used for external air supply.
5. The intermittent arch breaking quantitative powder feeding device according to claim 4, wherein a plurality of air blowing holes are uniformly distributed among the teeth of the screw.
6. The intermittent arch breaking quantitative powder feeding device according to claim 4, wherein a turntable is arranged at one end of the screw protruding out of the powder outlet pipe, and the turntable is provided with a groove; the powder outlet pipe is also provided with a detection device for counting the rotation times of the groove.
7. An intermittent arch breaking quantitative powder feeding device according to claim 3, wherein the screw pitch of the screw gradually decreases from one end close to the transmission assembly to the other end.
8. The intermittent arch breaking quantitative powder feeding device according to claim 2, wherein the stirring assembly comprises a first stirring blade, a second stirring blade and a rotating shaft, the first stirring blade and the second stirring blade are symmetrically arranged on two sides of the rotating shaft about the center of the rotating shaft, and the rotating shaft is coaxially and rotatably connected with the first transmission shaft.
9. The intermittent arch breaking quantitative powder feeding device according to claim 8, wherein the first stirring blade and the second stirring blade are of hollow right triangle structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321449414.3U CN220282318U (en) | 2023-06-07 | 2023-06-07 | Intermittent arch breaking quantitative powder feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321449414.3U CN220282318U (en) | 2023-06-07 | 2023-06-07 | Intermittent arch breaking quantitative powder feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220282318U true CN220282318U (en) | 2024-01-02 |
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ID=89342270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321449414.3U Active CN220282318U (en) | 2023-06-07 | 2023-06-07 | Intermittent arch breaking quantitative powder feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220282318U (en) |
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2023
- 2023-06-07 CN CN202321449414.3U patent/CN220282318U/en active Active
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