CN217773981U

CN217773981U - Powder homogeneous mixing device with internal microstructure

Info

Publication number: CN217773981U
Application number: CN202221463992.8U
Authority: CN
Inventors: 王迪; 李贝; 唐锦荣; 刘振宇; 王海全
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-11-11
Anticipated expiration: 2032-06-13

Abstract

The utility model relates to a powder homogeneous mixing device with internal microstructure, including quantity four feed bin, be equipped with the hybrid module on the feed bin, be equipped with the high-velocity air mixing mechanism on the hybrid module, the hybrid module including communicate in the outside electric proportional switch of feed bin with communicate in the one-level blending bunker of feed bin bottom, the left side wall fixed mounting of one-level blending bunker inner chamber has left slant baffle, the right side wall fixed mounting of one-level blending bunker inner chamber have with left slant baffle bilateral symmetry's right slant baffle, the inside intercommunication of one-level blending bunker is fixed with the pedestrian parting bead division board that is located right slant baffle below, the inside intercommunication of one-level blending bunker is fixed with the 1 st type parting bead division board that is located pedestrian parting bead division board below. This powder homogeneous mixing device with internal microstructure, through the mixing assembly and the high-speed air current mixing mechanism that set up, guarantee the multistage of multiple material and break up the mixture, improve the homogeneity of mixing.

Description

Powder homogeneous mixing device with internal microstructure

Technical Field

The application relates to the technical field of mixing of various powder particles, in particular to a powder uniform mixing device with an internal microstructure.

Background

The SLM (selective laser melting) technology and the research on high-entropy alloy are the current hot research directions, when the SLM is manufactured, new and old powder are often required to be mixed, the mixing uniformity has great influence on the stability and uniformity of the quality of a formed part, the high-entropy alloy is an alloy formed by five or more metals with equal or approximately equal quantity, and because the high-entropy alloy has many ideal properties, the material science and engineering are seriously considered, the mixing uniformity of the high-entropy alloy powder also has very important influence on the performance of the high-entropy alloy powder, and the existing powder mixing device basically comprises a particle stirring mechanism, so that the stirring uniformity is poor, the structure is complex and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

To prior art's not enough, this application provides a powder homogeneous mixing device with inside micro-structure, possesses the compounding advantage such as even, has solved the inhomogeneous reliability of mixture poor problem.

In order to achieve the above purpose, the present application provides the following technical solutions: a powder uniform mixing device with an internal microstructure comprises four bins, wherein a mixing assembly is arranged on each bin, and a high-speed airflow mixing mechanism is arranged on each mixing assembly;

the mixing assembly comprises an electric proportional switch communicated with the outside of the bin and a first-stage mixing bin communicated with the bottom of the bin, a left oblique partition plate is fixedly installed on the left side wall of an inner cavity of the first-stage mixing bin, a right oblique partition plate which is bilaterally symmetrical to the left oblique partition plate is fixedly installed on the right side wall of the inner cavity of the first-stage mixing bin, a pedestrian partition plate positioned below the right oblique partition plate is fixedly communicated with the inside of the first-stage mixing bin, a 1 type partition plate positioned below the pedestrian partition plate is fixedly communicated with the inside of the first-stage mixing bin, a 2 type partition plate is fixedly communicated with the inside of the first-stage mixing bin, a 3 type partition plate positioned between the pedestrian partition plate and the 3 type partition plate is fixedly communicated with the inside of the first-stage mixing bin, a 4 type partition plate positioned between the 2 type partition plate and the 3 type partition plate is fixedly communicated with the inside of the first-stage mixing bin, and a first-stage connecting channel is communicated with the bottom of the first-stage mixing bin;

the high velocity air mixing mechanism including communicate in the second grade blending bunker of one-level joining channel bottom, the second grade compounding cavity has been seted up in the second grade blending bunker, the top intercommunication of second grade blending bunker has second grade joining channel, the one end intercommunication that second grade blending bunker was kept away from to second grade joining channel has tertiary blending bunker, the inside intercommunication of tertiary blending bunker is fixed with first type parting bead division board, the inside intercommunication of tertiary blending bunker is fixed with the 5 th type parting bead division board that is located 6 th type parting bead division board below, the bottom intercommunication of second grade blending bunker has the pulsation gas entry, the bottom intercommunication of tertiary blending bunker has the compounding export.

Further, the top of feed bin intercommunication has the relief valve, and stable gas entry and powder entry have been seted up at the top of feed bin.

Further, the right side of the pulsating gas inlet is communicated with a safety valve.

Furthermore, the 5 th type parting strip division plate and the 6 th type parting strip division plate are arranged at equal intervals.

Further, left side slant baffle and right slant baffle are closely laminated with the junction of one-level blending bunker, and left side slant baffle and right slant baffle all incline to the inboard.

Furthermore, the pedestrian partition strip separation plate is triangular, and the left side and the right side of the pedestrian partition strip separation plate are inclined downwards at an angle of thirty degrees.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this powder homogeneous mixing device with internal microstructure, through the mixing assembly and the high-speed air current mixing mechanism that set up, guarantee the multistage of multiple material and break up the mixture, improve the homogeneity of mixing.

Drawings

FIG. 1 is a front view of the present application;

FIG. 2 is a schematic structural diagram of a storage bin of the present application;

FIG. 3 is a cross-sectional view of the present application

Fig. 4 is a perspective view of the present application.

In the figure: 1. a storage bin; 2. an electrical proportional switch; 3. a first-stage mixing bin; 4. a second-stage mixing bin; 5. a pulsating gas inlet; 6. a mixing outlet; 7. three-stage mixing bins; 8. a safety valve; 9. a stable gas inlet; 10. a powder inlet; 11. a left inclined baffle plate; 12. a pedestrian partition plate; 13. 1 st type parting strip partition plate; 14. the 2 nd type parting strip splitter plate; 15. a right diagonal spacer plate; 16. a type 3 parting strip partition plate; 17. a 4 th type division bar separation plate; 18. a secondary mixing cavity; 19. a primary connecting channel; 20. a safety valve; 21. 5 types of parting strip partition boards; 22. a 6 th type division bar separation plate; and 23, secondary connecting channels.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Referring to fig. 1-4, the apparatus for uniformly mixing powder with internal microstructures in the present embodiment includes four bins 1, a mixing component is disposed on the bins 1, and a high-speed airflow mixing mechanism is disposed on the mixing component.

It should be noted that the top of the silo 1 is communicated with a safety valve 8, and the top of the silo 1 is provided with a stable gas inlet 9 and a powder inlet 10.

The mixing assembly in this embodiment includes communicating in the outside electric proportional switch 2 of feed bin 1 and communicating in the one-level blending bunker 3 of feed bin 1 bottom, the left side wall fixed mounting of 3 inner chambers of one-level blending bunker has left slant baffle 11, the right side wall fixed mounting of 3 inner chambers of one-level blending bunker has the right slant baffle 15 with left slant baffle 11 left and right symmetry, the inside intercommunication of one-level blending bunker 3 is fixed with pedestrian parting bead division board 12 that is located right slant baffle 15 below, left slant baffle 11 and right slant baffle 15 closely laminate with the junction of one-level blending bunker 3, and left slant baffle 11 and right slant baffle 15 all incline to the inboard, the inside intercommunication of one-level blending bunker 3 is fixed with 1 type parting bead division board 13 that is located pedestrian parting bead division board 12 below, the inside intercommunication of one-level blending bunker 3 is fixed with 2 type parting bead division board 14, the inside intercommunication of one-level blending bunker 3 is fixed with 3 type parting bead 16 that is located between pedestrian parting

bead division board

12 and 1 type parting bead division board 13, the inside intercommunication of one-level blending bunker 3 is fixed with 3 type parting bead division board 19 that is located between 2 type division board and the first class parting bead division board 16, there is connected with the bottom intercommunication of one-level partitioning board 19 passageway of 3.

It should be noted that the pedestrian partition plate 12 is triangular, and the left and right sides of the pedestrian partition plate are inclined downward at an angle of thirty degrees.

The high-speed gas flow mixing mechanism in this embodiment is including communicateing in second grade blending bunker 4 of 19 bottoms of one-level linking channel, second grade compounding cavity 18 has been seted up in second grade blending bunker 4, the top intercommunication of second grade blending bunker 4 has second grade linking channel 23, the one end intercommunication that second grade blending bunker 4 was kept away from to second grade linking channel 23 has tertiary blending bunker 7, the inside intercommunication of tertiary blending bunker 7 is fixed with 6 type parting bead division boards 22, the inside intercommunication of tertiary blending bunker 7 is fixed with 5 type parting bead division boards 21 that are located 6 type parting bead division boards 22 below, the bottom intercommunication of second grade blending bunker 4 has pulse gas entry 5, the right side intercommunication of pulse gas entry 5 has safety valve 20, the bottom intercommunication of tertiary blending bunker 7 has compounding

export

6, 5 type parting

bead division boards

21 and 6 type parting bead division boards 22 are the equidistance and arrange.

The cross-sectional shape of parting bead, the baffle number of piles, the angle of crossing between the baffle, the inclination of baffle are not injectd to this application.

The working principle of the above embodiment is as follows:

powder particles are poured into the storage bin 1 through the powder inlet 10 through the arranged powder inlet 10, different powders are poured into different storage bins 1, the storage bins 1 are provided with the stable gas inlet 9 and the safety valve 8, the safety valve 8 limits the pressure of the storage bin 1, the pressure in the storage bin 1 is not higher than a set pressure value, and the structural safety of the storage bin 1 is ensured;

meanwhile, the mixing proportion of several types of powder particles to be mixed is ensured through the arranged electric proportional switch 2, the precise control is carried out through the electric proportional switch 2, the mixed particles passing through the electric proportional switch 2 enter the first-stage mixing bin 3, the flow is guided through the left inclined partition plate 11 and the right inclined partition plate 15 under the action of air flow and gravity, various particles at a central outlet are collided and mixed and move downwards, the mixed particles are divided into a plurality of flow passages to move downwards in the first-stage mixing bin 3 under the partition action of the pedestrian partition plate 12, the mixed particles collide with the 3 rd type partition plate 16, the particles in the plurality of flow passages are converged and separated again, the particles continue to move downwards under the action of air and gravity, and then the particles respectively collide with the 1 st type partition plate 13, the 4 th type partition plate 17, the 2 nd type partition plate 14 and subsequent several partition plates, so as to complete the first-stage mixing of the mixed particles;

after the mixed particle is mixed for the first time at one-level blending bunker 3, enter into second grade blending bunker 4 through one-level connecting channel 19, the mixed particle mixes in second grade compounding cavity 18 once more, low-speed air current during the air current of 5 input of pulsation gas entry this moment, the mixed material rolls the collision repeatedly in second grade compounding cavity 18 under the reverse action of air current and gravity, intensive mixing, the pulsation gas current switches into high-speed air current this moment, the granule that mixes enters into third grade blending bunker 7 through second grade connecting channel 23 under high-speed air current's drive, under the combined action of air current and gravity, the mixed particle is through 6 th type parting

bead division boards

22 and 5 th type parting bead division boards 21 etc., the material that final mixing is good flows through compounding export 6, accomplish the mixture of granule, guarantee the homogeneity of mixing.

The electrical components shown herein are electrically connected to a main controller and a power supply, the main controller can be a conventional known device controlled by a computer, and the conventional power connection technology disclosed in the prior art is not described in detail herein.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a powder homogeneous mixing device with internal microstructure, includes feed bin (1) that quantity is four, its characterized in that: a mixing component is arranged on the stock bin (1), and a high-speed airflow mixing mechanism is arranged on the mixing component;

the mixing assembly comprises an electric proportional switch (2) communicated with the outside of the stock bin (1) and a first-stage mixing bin (3) communicated with the bottom of the stock bin (1), a left oblique partition plate (11) is fixedly arranged on the left side wall of an inner cavity of the first-stage mixing bin (3), a right oblique partition plate (15) which is bilaterally symmetrical to the left oblique partition plate (11) is fixedly arranged on the right side wall of the inner cavity of the first-stage mixing bin (3), a pedestrian partition plate (12) positioned below the right oblique partition plate (15) is fixedly communicated with the inside of the first-stage mixing bin (3), a 1 type partition plate (13) positioned below the pedestrian partition plate (12) is fixedly communicated with the inside of the first-stage mixing bin (3), a 2 type partition plate (14) is fixedly communicated with the inside of the first-stage mixing bin (3), a 3 type partition plate (16) positioned between the pedestrian partition plate (12) and the 1 type partition plate (13) is fixedly communicated with the inside of the first-stage mixing bin (3), a channel (16) positioned between the pedestrian partition plate (14) and the first-stage partition plate (3) is fixedly communicated with the inside of the first-stage mixing bin (3), and a channel (19) is connected with a first-stage partition plate (16) type partition plate (16) connecting channel which is positioned between the partition plate (16);

the high-speed gas flow mixing mechanism comprises a second-stage mixing bin (4) communicated with the bottom of a first-stage connecting channel (19), a second-stage mixing cavity (18) is formed in the second-stage mixing bin (4), a second-stage connecting channel (23) is communicated with the top of the second-stage mixing bin (4), one end, far away from the second-stage mixing bin (4), of the second-stage connecting channel (23) is communicated with a third-stage mixing bin (7), a 6 th type parting bead partition plate (22) is fixedly communicated with the inside of the third-stage mixing bin (7), a 5 th type parting bead partition plate (21) located below the 6 th type parting bead partition plate (22) is fixedly communicated with the inside of the third-stage mixing bin (7), a pulsating gas inlet (5) is communicated with the bottom of the second-stage mixing bin (4), and a mixing outlet (6) is communicated with the bottom of the third-stage mixing bin (7).

2. The device of claim 1, wherein the powder homogenizing mixing device with internal microstructure comprises: the top of the storage bin (1) is communicated with a safety valve (8), and a stable gas inlet (9) and a powder inlet (10) are formed in the top of the storage bin (1).

3. The device of claim 1, wherein the powder homogenizing device comprises: the right side of the pulsating gas inlet (5) is communicated with a safety valve (20).

4. The device of claim 1, wherein the powder homogenizing device comprises: the 5 th type parting strip partition plates (21) and the 6 th type parting strip partition plates (22) are arranged at equal intervals.

5. The device of claim 1, wherein the powder homogenizing mixing device with internal microstructure comprises: the joint of the left oblique baffle plate (11) and the right oblique baffle plate (15) with the one-level mixing bin (3) is tightly attached, and the left oblique baffle plate (11) and the right oblique baffle plate (15) are inclined inwards.

6. The device of claim 1, wherein the powder homogenizing device comprises: the pedestrian partition strip separation plate (12) is triangular, and the left side and the right side of the pedestrian partition strip separation plate are inclined downwards at an angle of thirty degrees.