CN109012376B

CN109012376B - High-flux high-efficiency powder mixer

Info

Publication number: CN109012376B
Application number: CN201810909933.0A
Authority: CN
Inventors: 冯晶; 郑椿; 种晓宇; 宋鹏
Original assignee: Kunming University of Science and Technology
Current assignee: Shaanxi Lafarge New Material Technology Co ltd
Priority date: 2018-08-10
Filing date: 2018-08-10
Publication date: 2021-06-29
Anticipated expiration: 2038-08-10
Also published as: CN109012376A

Abstract

The utility model relates to a mix device of powder such as metal, nonmetal, organic matter, specifically disclose high flux high efficiency powder mixing machine, it includes the pivot by driving motor drive, is equipped with a plurality of powder units that mix in the pivot, mixes the powder unit and includes the powder chamber that mixes that can seal, and a plurality of powder units that mix form a unit group, and the powder unit that mixes of constituteing every unit group has a plurality of unit groups along the circumference evenly distributed of pivot, and the axial along the pivot distributes in proper order. Because the rotating shaft can simultaneously drive the powder mixing units to rotate, the aim of simultaneously mixing dozens of or even hundreds of powders can be achieved, thereby meeting the requirement of high-throughput experiment of material genetic engineering.

Description

High-flux high-efficiency powder mixer

Technical Field

The invention relates to the technical field of glass, cement, mine, powder metallurgy and ceramic materials, in particular to a device for mixing powder such as metal, nonmetal, organic matter and the like.

Background

Since the united states proposed a material genetic engineering plan in 2011, major countries in the world such as european union, japan, russia, and china proposed their own material genetic engineering successively, and material genetic engineering research institutes and research centers are established in various places such as shenzhen in the shanghai of beijing. Shortening the period from research and development to application of materials, accelerating the research and development speed of materials, reducing the research and development cost of materials is the initial target of material genetic engineering, and the ultimate target of the material genetic engineering is to realize the intellectualization and digitalization of the research and development of materials.

As the most important ring in the material genetic engineering technology, the high-throughput test can accelerate the research and development of materials by thousands of times, and the experiment is to make up for the relationship between theoretical calculation, model deficiency and calculation of different scales of a framework; the method is characterized by supplementing basic material physical, chemical and material science data, relating to performance data of the material such as electronics, mechanics, optics and the like, constructing internal relation among components, tissues and processes related to material performance, providing basic data parameters for calculation simulation, and accelerating material screening and optimization. Meanwhile, as one of three major elements of a material genome technology, the method needs to be organically fused, cooperatively developed and mutually supplemented with a material calculation simulation and a material informatics/database, so that the efficiency of accelerating material development and application can be more fully exerted, and finally the material science is led to the ultimate goal of design on demand.

In the traditional material research, trial and error sequence iteration is used as a research method, and in the field of 'material genetic engineering', a 'material high-throughput experiment' is a method which causes qualitative change of material research efficiency due to quantitative change by processing a large number of experiments in parallel. The powder mixer is widely applied to experimental research in the fields of mines, glass, ceramics, magnetic materials, fluorescent powder, nano materials, powder metallurgy and the like. Under the background of 'material genetic engineering', the traditional powder mixing machine can only mix one powder at a time, so that in the face of 'material genetic engineering', more than one hundred materials need to be prepared at a time, and the requirement of 'material genetic engineering' can not be obviously met. The high-flux high-efficiency powder mixer can mix dozens of or hundreds of kinds of powder at one time, and meets the requirements of high-flux experiments of material genetic engineering.

Disclosure of Invention

The invention aims to provide a high-flux high-efficiency powder mixer, which can prepare hundreds of different powders at a time and meet the requirements of high-flux experiments of material genetic engineering.

In order to achieve the above purpose, the basic scheme of the invention is as follows:

the high-flux high-efficiency powder mixing machine comprises a rotating shaft driven by a driving motor, wherein a plurality of powder mixing units are arranged on the rotating shaft, each powder mixing unit comprises a closable powder mixing cavity, a plurality of powder mixing units form a unit group, the powder mixing units forming each unit group are uniformly distributed along the circumferential direction of the rotating shaft, and a plurality of unit groups are sequentially distributed along the axial direction of the rotating shaft.

The principle of this scheme high-efficient powder mixer of high flux lies in:

the powder mixing units are arranged in the circumferential direction of the rotating shaft, and the powder mixing units are fixed with the rotating shaft, so that the high-flux high-efficiency powder mixing machine can be provided with dozens or even hundreds of powder mixing units to perform experiments at the same time; and because the powder mixing unit rotates by taking the rotating shaft as a rotating center, compared with the traditional powder mixing machine, the powder mixing unit rotates along the rotating center of the powder mixing unit, and the rotating radius of the powder mixing unit is increased, thereby greatly improving the powder mixing efficiency and greatly saving the time. Can meet the requirement of 'material high flux experiment' of 'material genetic engineering'.

The beneficial effect that this scheme produced is:

the powder mixing units are driven to rotate through the same rotating shaft, so that dozens or even hundreds of powder mixing units can rotate simultaneously, hundreds of materials can be prepared at a time, and the parallel processing of a large number of experiments required by 'material high-flux experiments' can be met.

And (II) the powder mixing units are divided into a plurality of unit groups, and the powder mixing units forming the unit groups are uniformly distributed along the circumferential direction of the rotating shaft, so that when the rotating shaft rotates, the centrifugal force at each position in the circumferential direction of the rotating shaft is the same, the vibration of the rotating shaft is reduced, and the reliability of the rotating shaft is enhanced.

The first preferred scheme is as follows: as a further optimization of the basic scheme, the powder mixing unit is fixed with the rotating shaft through a turntable, and one unit group is fixedly connected to the same turntable; because the powder mixing units of the same unit group are uniformly distributed along the circumferential direction of the rotating shaft, the powder mixing units are favorably installed by arranging the rotating disc.

The preferred scheme II is as follows: as a further optimization of the first preferred scheme, the powder mixing units of the same unit group are symmetrically distributed on two sides of the turntable; therefore, the space around the rotating shaft can be fully utilized, more powder mixing units can be arranged on the rotating shaft, and more materials can be prepared at the same time.

The preferable scheme is three: as a further optimization of the second preferred scheme, the powder mixing unit is detachably connected with the rotary table; thereby facilitating replacement of the powder mixing unit.

The preferable scheme is four: as a further optimization of the preferable scheme III, the powder mixing unit is a V-shaped cylinder; when the powder flows in the powder mixing unit, the powder mixing unit is bent into a V shape, so that the vibration of the powder is enhanced when the powder repeatedly passes through the bent part of the powder mixing unit, and the powder mixing is facilitated.

The preferable scheme is five: as a further optimization of the preferable scheme four, both ends of the powder mixing unit are provided with closable openings; thereby facilitating discharge of the mixed powder in the powder mixing unit.

The preferable scheme is six: as a further optimization of the preferable scheme five, two openings of the powder mixing unit are far away from the center of the rotating shaft; so that the opening of the powder mixing unit faces outward, thereby facilitating the discharge of the powder.

The preferable scheme is seven: as a further optimization of the preferable scheme six, 3-6 unit groups are arranged on the rotating shaft; therefore, the length of the rotating shaft can be controlled, and overlarge torque borne by the rotating shaft during rotation is avoided.

The preferable scheme is eight: as a further optimization of the sixth preferred embodiment, the unit group comprises 6-24 powder mixing units; the number of the powder mixing units is determined, and the size of the radius of the powder mixing units rotating along the rotating shaft is determined; the radius of the powder mixing unit rotating along the rotating shaft is not too large, otherwise, feeding and discharging are not convenient, and the radius of the powder mixing unit rotating along the rotating shaft is too large, so that the centrifugal force applied to the powder is also large, and the powder is concentrated towards the periphery and is not beneficial to powder mixing; and too small a radius of rotation along the shaft will reduce the space around the shaft for installing the powder mixing unit.

The preferable scheme is nine: as a further optimization of the preferred scheme six, the turntable is in a spoke type structure, and the rotating shaft is horizontally arranged; the spoke structure can lighten the material use of the rotary table, can lighten the mass of the rotary table and reduce the energy loss when the rotary table rotates. The rotating shaft is horizontally arranged, so that the powder mixing unit can rotate along the rotating shaft from bottom to top in a reciprocating manner, and when the powder mixing unit rotates from bottom to top, powder flows from two ends of the powder mixing unit to a bent part in the middle of the powder mixing unit; when the powder mixing unit rotates from bottom to top, the powder flows from the bent part in the middle of the powder mixing unit to the two ends of the powder mixing unit, so that the powder mixing is facilitated.

Drawings

FIG. 1 is a schematic overall view of a first embodiment of a high throughput high efficiency powder mixer;

FIG. 2 is a front view of a principal structural component of an embodiment of the high throughput, high efficiency powder blender;

FIG. 3 is a schematic diagram of the connection of the powder mixing unit and the rotary table in an embodiment of the high-throughput high-efficiency powder mixer;

FIG. 4 is an overall schematic view of a second embodiment of the high throughput high efficiency powder mixer;

FIG. 5 is a schematic diagram of the second main structure of the high throughput high efficiency powder mixer;

FIG. 6 is a front view of the V-shaped powder mixing chamber and the rotary table in the second embodiment of the high-throughput high-efficiency powder mixing machine;

fig. 7 is a partial sectional view of the connection of the rotary disk and the powder mixing chamber in the third embodiment of the high-flux and high-efficiency powder mixer.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the powder mixing device comprises a base 10, a rotating shaft 20, a rotating disc 30, a powder mixing unit 40, a cavity cover 41, a bolt 42, spokes 51, a cavity 52, a piston 53, a tension spring 55, an air inlet one-way valve 56 and an air outlet one-way valve 57.

The first embodiment is as follows:

as shown in fig. 1 and fig. 2, the high-flux and high-efficiency powder mixer of the embodiment includes two bases 10, a rotating shaft 20 is rotatably connected to the bases 10, the two bases 10 respectively support two ends of the rotating shaft 20, so that the rotating shaft 20 is arranged along a horizontal direction, and a driving motor is provided to drive the rotating shaft 20 to rotate. The rotary shaft 20 is connected with a plurality of powder mixing units 40 through a rotary disc 30, the rotary disc 30 is in a spoke type structure, the shape of the rotary disc 30 is similar to that of a wheel, the mass of the rotary disc 30 can be reduced, and the rotary disc 30 is made of high-strength carbon steel.

As shown in fig. 3, a powder mixing chamber is arranged inside the powder mixing unit 40, so that the powder mixing unit 40 forms a tube shape similar to a "V", that is, openings are arranged at both ends of the powder mixing unit 40, a chamber cover 41 is arranged at the openings to close the powder mixing chamber, and the powder can be loaded and taken out by opening the chamber cover 41. The powder mixing unit 40 is fastened to the edge of the turntable 30 by bolts so that the powder mixing unit 40 is detachable from the turntable 30. The two openings of the powder mixing unit 40 face away from the rotating shaft 20, and the bent portion of the powder mixing unit 40 points to the rotating shaft 20.

In this embodiment, there are five rotating discs 30, and the rotating discs 30 are arranged at equal intervals along the axial direction of the rotating shaft 20. The powder mixing units 40 fixed on the same turntable 30 are a unit group, and the unit group comprises 12 powder mixing units 40. The powder mixing units 40 of the same unit group are uniformly distributed along the circumferential direction of the turntable 30 and are all positioned at the same side of the turntable 30; thus, the experiment operation of 5 × 12-60 groups can be carried out at one time.

When the powder mixing device works, the driving motor drives the rotating shaft 20 to rotate, and the rotating shaft 20 drives the powder mixing unit 40 to rotate through the turntable 30, so that the powder mixing unit 40 revolves around the rotating shaft 20 at the same time. During the rotation of the rotating shaft 20, when the powder mixing unit 40 rotates from bottom to top, the powder flows from the two ends of the powder mixing unit 40 to the bent part in the middle of the powder mixing unit 40, so that the powder at the two ends of the powder mixing unit 40 is gathered to the middle; when the powder mixing unit 40 rotates from bottom to top, the powder flows from the bent portion in the middle of the powder mixing unit 40 to both ends of the powder mixing unit 40, so that the powder is dispersed again, and thus the powder can be uniformly mixed in the repeated aggregation and dispersion process.

Example two:

as shown in fig. 4, 5 and 6, the second embodiment is different from the first embodiment in that 16 powder mixing units 40 are arranged in one unit group, and 8 powder mixing units 40 are respectively arranged on both sides of the turntable 30, so that the powder mixing units 40 constituting the same unit group are symmetrically distributed on both sides of the turntable 30 and uniformly distributed along the circumferential direction of the turntable 30.

Example three:

as shown in fig. 7, the third embodiment is a further modification of the first embodiment, a cavity 52 is arranged in the spoke 51 of the turntable 30, a piston 53 is arranged in the cavity, and the piston 53 can slide along the axial direction of the cavity 52; a tension spring 55 is arranged on one side of the piston 53 close to the rotating shaft 20, and two ends of the tension spring 55 are respectively fixed with the piston 53 and the side wall of the cavity 52; the spoke 51 is provided with an air inlet one-way valve 56 and an air outlet one-way valve 57, so that the spoke 51, the piston 53, the air inlet one-way valve 56 and the air outlet one-way valve 57 form a structure similar to an air pump. The air inlet check valve 56 connects air with the outside, and the air outlet check valve 57 connects the cavity with the powder mixing cavity of the powder mixing unit 40. When the rotating shaft 20 rotates the rotating disk 30, the piston 53 is subjected to centrifugal force, so that the air in the cavity 52 is pressed into the powder mixing cavity through the air outlet one-way valve 57 and the piston 53. In this embodiment, the driving motor is a forward and reverse rotation motor, so that the driving motor will drive the rotating shaft 20 to periodically rotate forward and reverse, and the piston 53 will slide back and forth in the cavity 52, so that the pressure in the powder mixing cavity is increased; therefore, when the powder mixing unit 40 is opened to discharge the powder, the air inside the powder mixing chamber is rapidly ejected to drive the powder discharge, so that the powder discharge is more convenient and thorough. In addition, the spokes 51 are provided with cavities 52, so that the mass of the turntable 30 can be further reduced.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a high flux high efficiency powder mixing machine, includes the pivot by driving motor driven, its characterized in that: the powder mixing unit comprises a closable powder mixing cavity, the powder mixing units form a unit group, the powder mixing units forming each unit group are uniformly distributed along the circumferential direction of the rotating shaft, and a plurality of unit groups are sequentially distributed along the axial direction of the rotating shaft; the powder mixing unit is a V-shaped cylinder, two ends of the powder mixing unit are provided with closable openings, and the two openings of the powder mixing unit are far away from the center of the rotating shaft; the powder mixing unit is fixed with the rotating shaft through a rotating disc, one unit group is fixedly connected to the same rotating disc, the rotating disc is in a spoke type structure, the rotating shaft is horizontally arranged, a cavity is arranged in a spoke of the rotating disc, a piston is arranged in the cavity, and the piston can slide along the axial direction of the cavity; one side of the piston close to the rotating shaft is provided with a tension spring, and two ends of the tension spring are respectively fixed with the piston and the side wall of the cavity; the spoke is provided with an air inlet one-way valve and an air outlet one-way valve, the air inlet one-way valve is used for connecting air with the outside, the air outlet one-way valve is used for connecting the cavity with the powder mixing cavity of the powder mixing unit, and the driving motor is a positive and negative rotating motor.

2. High throughput and high efficiency powder mixer according to claim 1, characterized in that: the powder mixing units of the same unit group are symmetrically distributed on two sides of the turntable.

3. High throughput and high efficiency powder mixer according to claim 2, characterized in that: the powder mixing unit is detachably connected with the rotary disc.

4. High throughput and high efficiency powder mixer according to claim 3, characterized in that: the rotating shaft is provided with 3-6 unit groups.

5. High throughput and high efficiency powder mixer according to claim 4, characterized in that: the unit group comprises 6-24 powder mixing units.