CN112299057B - Secondary particle automatic distributor based on Archimedes spiral line - Google Patents
Secondary particle automatic distributor based on Archimedes spiral line Download PDFInfo
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- CN112299057B CN112299057B CN202011107737.5A CN202011107737A CN112299057B CN 112299057 B CN112299057 B CN 112299057B CN 202011107737 A CN202011107737 A CN 202011107737A CN 112299057 B CN112299057 B CN 112299057B
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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
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/04—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials
- B65G69/0458—Spreading out the materials conveyed over the whole surface to be loaded; Trimming heaps of loose materials with rotating means, e.g. tables, arms
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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
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/042—Granular material
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Abstract
The invention discloses a secondary particle automatic distributor based on an Archimedes spiral line, which comprises a primary inlet, a transmission device, a secondary inlet, a rotation center, a rotating blade, a circular shaft, a primary partition plate and a secondary partition plate, wherein the transmission device is arranged on the primary inlet; the primary inlet is connected with the transmission device; the transmission device is connected with the secondary inlet; the second-stage inlet is connected with the rotating center; the rotation center is connected with the rotary blade. The invention integrates the falling of the particles under the action of gravity and the automatic rotation of the blades under the action of particle impact, so that the particles with different sizes are uniformly distributed, and the invention has the advantages of compact structure, uniform particle distribution, high particle quality guarantee rate and the like.
Description
Technical Field
The invention relates to the aspect of mechanical movement, and mainly relates to automatic particle distribution under an Archimedes spiral structure.
Background
The particle distributor is a typical particle distribution machine and is widely applied to daily life and industrial production. Particularly, with the rapid development of national large-scale mechanical equipment, a good particle distributor is an important guarantee for the normal operation of the industrial production of particles. The particle distributor is easy to generate uneven particle distribution, particle breakage and the like in the operation process, and the quality and the distribution characteristic of the particles are seriously influenced. The adoption of the automatic distribution technology is an important guarantee for the safe and reliable operation, energy conservation and the like of the particle distributor. The flow channel design of the automatic distributor is a key technology for automatically distributing the particles.
In the process of implementing the invention, the inventor finds that at least the following disadvantages and shortcomings exist in the prior art:
the existing automatic particle distributor mainly adopts an electric device as a power source for particle distribution, and has the characteristics of high energy consumption, low safety coefficient and the like. In the process of practical application, mechanical faults are easy to occur when the electric device is adopted, the maintenance cost is high, and the service life is short. The existing automatic particle distributor mostly adopts a central tube type to transport particles with higher fall for the particle distribution working condition, and the final falling speed of the particles is very high because the fall of the particles is not changed essentially, so that the defect of serious particle damage exists. In addition, the existing particle distribution device causes the distribution of fine particles at the periphery due to the difference of the weight of the particles, and causes the uneven distribution of particle sizes due to the aggregation of larger particles at the center. Thus, existing automatic distributed particle distribution apparatus are limited in industrial production applications.
Disclosure of Invention
The invention provides a secondary particle automatic distributor based on an Archimedes spiral line. According to the invention, the rotating blades designed based on the Archimedes spiral line are impacted by relying on the gravity of the particles, so that the sizes of the particles can be uniformly distributed under the condition of relying on the gravity of the particles, and the rotating blades have the advantages of compact structure, strong universality, energy conservation, emission reduction and the like, and meet the requirements in practical application. See the description below for details:
a two-stage automatic distributor based on Archimedes spiral is characterized by comprising a first-stage inlet, a transmission device, a first-stage partition plate, a second-stage inlet, a circular shaft, a rotating blade and a rotating center, wherein the first-stage inlet is connected with the transmission device; the bottom of the first-stage inlet is connected with the top of the transmission device, and a first-stage partition plate is arranged on the transmission device; the bottom of the transmission device is connected with the top of the secondary inlet; the bottom of the secondary inlet is connected with the top of the rotating center through a circular shaft; the bottom of the rotating center is connected with the top of the rotating blade, and a secondary partition plate is arranged on the rotating blade.
Wherein, the one-level inlet port includes one-level outside drum and one-level inside diverging device, and one-level outside drum and one-level inside diverging device be seamless welding together.
Wherein, the second grade inlet port includes second grade outside drum and second grade inside diverging device, and second grade outside drum and second grade inside diverging device be seamless welding together.
Wherein, the bottom of the primary inlet is connected with the top of the transmission device, and the transmission devices are uniformly arrayed at the bottom of the primary inlet.
Wherein, the rotation center bottom is connected with rotating vane top, and the even array of rotating vane is in the bottom of rotation center.
The molded line of the rotating blade is an Archimedes spiral line.
The operation step method of the device comprises the following steps:
1) pre-start
The granule of variation in size gets into at the one-level inlet port, strikes the inside diverging device of one-level, makes the granule evenly get into transmission, falls into the second grade inlet port, strikes the inside diverging device of second grade, makes the granule evenly fall on each rotating vane, makes the blade rotatory because of the impact that granule self gravity caused rotating vane. The falling speed and the number of the particles need to be adjusted, so that the rotating blades rotate at a constant speed, the rotating speed of the rotating blades is observed by observing the distribution condition of the falling particles, the falling speed and the number of the particles are locked after the expected rotating working condition of the rotating blades is achieved, and the pre-starting is finished;
2) full run
After the pre-starting is finished, the mass flow of the particles in the pre-starting is kept, and the rotating blade stably runs under the running working condition.
3) Device stopping
The falling amount of the particles is slowed down so that the rotary blade slowly stops rotating.
The device can make particles fall under the action of gravity and drive the blades to rotate under the action of particle impact, so that the particles with different sizes are uniformly distributed, and the device has the advantages of compact structure, strong universality and the like.
Drawings
FIG. 1 is a schematic structural diagram of an automatic secondary particle distributor based on an Archimedes spiral provided by the invention;
FIG. 2 is a schematic diagram of the components of the primary access port of FIG. 1;
FIG. 3 is a schematic diagram of the composition of the secondary access port of FIG. 1;
FIG. 4 is a sizing view of the primary access port of FIG. 1;
FIG. 5 is a dimensional scale of the transfer device of FIG. 1;
FIG. 6 is a sizing diagram of the secondary access port of FIG. 1;
FIG. 7 is a dimensional reference view of the rotary blade of FIG. 1;
FIG. 8 is a dimensional plot of the center of rotation of FIG. 1;
in the figure:
1-a primary access port; 2-a transmission device; 3-a first-stage clapboard; 4-a secondary access port; 5-a secondary separator; 6-round shaft; 7-rotating blades; 8-center of rotation;
101-a primary outer cylinder; 102-a primary internal shunt device;
401-a secondary outer cylinder; 402-a secondary internal shunt device;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below.
Aiming at the problems in the background art, the invention provides a secondary particle automatic distributor based on an Archimedes spiral line, which realizes the homogenization and high quality guarantee rate distribution of particles, solves the defects of the existing particle distributor, and is described in detail as follows:
the embodiment discloses a two-stage automatic separator based on an Archimedes spiral, which comprises a primary inlet 1, a transmission device 2, a primary baffle 3, a secondary inlet 4, a secondary baffle 5, a circular shaft 6, a rotating blade 7 and a rotating center 8, wherein the primary inlet is arranged on the circular shaft, and the rotating center 8 is arranged on the circular shaft.
In order to achieve an automatic and uniform entry of the particles into the transport device 2, the primary inlet 1 is composed of a primary outer cylinder 101 and a primary inner diverter 102, as shown in fig. 2, the primary inner diverter 102 is an outer arc body with edge gaps removed.
In order to achieve an accurate and automatic fall of the particles to the rotating blades 7, the secondary inlet 4 consists of a secondary external cylinder 401 and a secondary internal diverter 402, as shown in fig. 3, the secondary internal diverter 402 is an external arc of a sphere with a hole at the bottom.
In order to realize that all particles accurately enter the secondary inlet 4 through the conveying device 2, a primary baffle 3 is arranged on the conveying device 2, as shown in fig. 5, the primary baffle 3 is welded on the conveying device 2 in a seamless mode, and the length of the primary baffle 3 is the same as that of the conveying device 2.
In order to realize that all particles fall through the rotating blades 7, the rotating blades 7 are provided with the secondary partition plates 5, as shown in fig. 7, the secondary partition plates 5 are welded on the rotating blades 7 in a seamless manner, and the length of the secondary partition plates 5 is the same as that of the rotating blades 7.
The calculation formula of the sphere diameter of the first-stage internal shunting device 102 is as follows:
wherein D is1The diameter of the sphere of the primary internal flow splitting device 102; r1The inner radius of the primary outer cylinder 101; a is1A first order outer cylinder 101 wall thickness; theta1The included angle between the line connecting the sphere center of the inner shunt device 102 and the lower boundary edge of the outer cylinder 101 and the axis of the outer cylinder 101.
Distance d from the center of the sphere to the lower boundary of the outer cylinder1The calculation formula is as follows:
wherein d is1The distance from the center of sphere of the primary internal flow splitting device 102 to the lower boundary of the outer cylinder.
In order to ensure that the particles enter the primary inlet 1 and fall uniformly through the primary internal splitter 102, as shown in fig. 4, the primary internal splitter 102 is required to satisfy:
D1-d1＜h1 (3)
wherein h is1Is the height of the primary outer cylinder 101.
In order to ensure that the particles pass through the holes of the primary inlet 1 and enter each transfer device 2 completely and uniformly, as shown in fig. 5, the transfer devices 2 need to satisfy the following conditions:
l1×sinα＞R1 (4)
the width of the top of the transmission device 2 needs to satisfy:
0＜b2＜2R1 (5)
the width of the bottom of the transmission device 2 needs to satisfy:
b′2＝2R2 (6)
wherein l1Is the length of the transfer device 2; alpha is the included angle between the transmission device 2 and the axial line of the first-stage external cylinder 101; r1The inner radius of the primary outer cylinder 101; b2The width of the top of the transfer device 2; b2' is the width of the bottom of the transfer device 2.
In order to ensure that the particles enter the secondary inlet 4 and fall uniformly through the secondary internal distribution device 402, as shown in fig. 6, the secondary internal distribution device 402 needs to satisfy:
D2-d2＜h2 (9)
wherein D2The diameter of the sphere of the secondary internal flow splitting device 402; r2The inner radius of the secondary outer cylinder 401; a is2A secondary outer cylinder 401 wall thickness; theta2The included angle between the connecting line of the sphere center of the secondary internal shunting device 403 and the lower boundary edge of the external cylinder 402 and the axis of the external cylinder 402; d2The distance from the spherical center of the secondary internal shunt device 402 to the lower boundary of the external cylinder 401; h is2The height of the secondary outer cylinder 401.
In order to ensure that the particles pass through the holes of the secondary inlet 4 and completely and uniformly enter each rotating blade 7, as shown in fig. 7, the rotating blade is designed based on an archimedes spiral, and the archimedes spiral formula is as follows:
the rotary blades 7 need to satisfy:
b4＜R3 (12)
wherein z is the length of the rotating blade 7; gamma is the included angle between the rotary blade 7 and the axis of the second-stage external cylinder; r2The inner diameter of the secondary outer cylinder 401; a and b are constants; theta is a variable; b4Is the width of the rotating blade 7; r3Is the radius of the centre of rotation 8.
The working process of the invention is briefly described as follows:
under the condition of pre-starting, particles with different sizes enter the first-stage inlet 1 at different numbers and speeds, uniformly enter the transmission device 2 through the first-stage internal shunting device 101, then enter the second-stage inlet 4, uniformly fall into each rotating blade 7 through the second-stage internal shunting device 402, the rotating blades 7 are impacted by a large number of particles to push the rotating blades to rotate around the circular shaft 6, the rotating speed of the rotating blades 7 is observed, the expected working condition is achieved, and the pre-starting is completed.
And keeping the mass flow of the particles under the pre-starting working condition and continuing to operate.
Under the operation stop condition, the falling speed and the falling amount of the particles are reduced, and the rotating blade 7 is slowly stopped.
In view of the above, it is desirable to provide,
according to the invention, the impact between a falling object and the inclined baffle taking the Archimedes spiral line as the boundary is ingeniously utilized to push the baffle to automatically rotate around the shaft, so that the uniform distribution of large and small particles is realized; the main characteristics are as follows: the automatic distributor runs by gravity completely, does not need to consume energy, realizes the uniform distribution of particles and has a better quality guarantee effect, so that the automatic distributor for the secondary particles based on the Archimedes spiral line can obtain a better effect.
Those skilled in the art will appreciate that the drawings are only schematic illustrations of preferred embodiments, and the above-described embodiments of the present invention are merely provided for description and do not represent the merits of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A secondary particle automatic distributor based on Archimedes spiral is characterized by comprising a primary inlet (1), a transmission device (2), a primary baffle (3), a secondary inlet (4), a secondary baffle (5), a circular shaft (6), a rotating blade (7) and a rotating center (8); the bottom of the primary inlet (1) is connected with the top of the transmission device (2), the primary inlet (1) consists of a primary outer cylinder (101) and a primary inner shunting device (102) positioned inside the primary outer cylinder (101), a primary partition plate (3) is arranged on the transmission device (2), and the primary partition plate (3) is welded on the transmission device (2) in a seamless mode; the bottom of the transmission device (2) is connected with the top of the secondary inlet (4); the secondary inlet (4) consists of a secondary external cylinder (401) and a secondary internal flow dividing device (402) positioned inside the secondary external cylinder (401); the bottom of the secondary inlet (4) is connected with the top of the rotating center (8) through a circular shaft (6); the bottom of the rotating center (8) is connected with the top of the rotating blade (7), the rotating blade (7) is uniformly and circumferentially arrayed at the bottom of the rotating center (8), the rotating blade (7) is provided with a secondary partition plate (5), and the secondary partition plate (5) is welded on the rotating blade (7) in a seamless mode;
the rotating blade (7) is designed based on an Archimedes spiral line, and the rotating blade (7) satisfies the following formula:
b4＜R3；
wherein z is the length of the rotating blade; gamma is the included angle between the rotating blade and the axis of the second-stage external cylinder; r2The inner diameter of the secondary outer cylinder; b4Is the width of the rotating blade; r3Radius of the center of rotation;
the primary outer cylinder (101) and the primary inner shunt device (102) are welded in a seamless mode, and the primary inner shunt device (102) is an outer arc body with edge gaps removed;
the secondary internal shunt device (402) is welded seamlessly between the secondary external cylinder (401) and the secondary internal shunt device (402) and is an external arc body of a sphere with a hole at the bottom;
the primary internal flow splitting device (102) satisfies the following relationship:
wherein D is1The diameter of the sphere where the first-stage internal shunt device is located; r1The inner radius of the first-level outer cylinder; a is1First order outer cylinder wall thickness; theta1The included angle between the connecting line of the sphere center of the sphere where the first-stage internal shunt device is located and the lower boundary edge of the external cylinder and the axis of the external cylinder is included;
wherein d is1The distance from the sphere center of the first-stage internal shunt device to the lower boundary of the external cylinder;
D1-d1＜h1；
wherein h is1The height of the first-level outer cylinder;
the secondary internal flow splitting device (402) satisfies the following relationship:
D2-d2＜h2；
wherein D2The diameter of the sphere where the secondary internal shunt device is located; r2The inner radius of the second-stage outer cylinder; a is2Second order outer cylinder wall thickness; theta2The included angle between the connecting line of the sphere center of the sphere where the second-stage internal shunt device is located and the lower boundary edge of the second-stage external cylinder and the axis of the second-stage external cylinder is formed; d2The distance from the sphere center of the secondary internal shunt device to the lower boundary of the secondary external cylinder; h is2The height of the secondary outer cylinder.
2. An archimedean spiral based secondary particle automatic distributor as claimed in claim 1, wherein the bottom of the primary inlet (1) is connected to the top of the transfer means (2), the transfer means (2) are uniformly arrayed at the bottom of the primary inlet (1), and the transfer means comprises three transfer means, one for each of the edge gaps.
3. An archimedean spiral based secondary particle automatic distributor according to claim 1 or 2, characterized in that the conveying means (2) satisfy the following relation:
l1×sinα＞R1；
0＜b2＜2R1；
b2’＝2R2；
wherein l1Is the length of the transmission device; alpha is the included angle between the transmission device and the axial line of the first-stage external cylinder; r1The inner radius of the first-level outer cylinder; b2Is the width of the top of the transmission device; b2' is the width of the bottom of the transfer device.
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| CN202011107737.5A CN112299057B (en) | 2020-10-16 | 2020-10-16 | Secondary particle automatic distributor based on Archimedes spiral line |
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| CN202011107737.5A CN112299057B (en) | 2020-10-16 | 2020-10-16 | Secondary particle automatic distributor based on Archimedes spiral line |
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| CN112299057B true CN112299057B (en) | 2022-01-21 |
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|---|---|
| CN112299057A (en) | 2021-02-02 |
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