CN114247527A

CN114247527A - Ultrasonic field separation device and system

Info

Publication number: CN114247527A
Application number: CN202210013600.6A
Authority: CN
Inventors: 陈波
Original assignee: Shenzhen Keli Force Nano Engineering Equipment Co ltd
Current assignee: Shenzhen Keli Force Nano Engineering Equipment Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-03-29

Abstract

The invention is suitable for the technical field of ball milling. The invention discloses an ultrasonic field separation device and a system, wherein the ultrasonic field separation device comprises a separator and an ultrasonic generator, and the separator is provided with a cooling mechanism. When the ultrasonic separator is used, an ultrasonic field is generated in the separator through the ultrasonic generator, and when the power of the ultrasonic generator is set to be larger, the ultrasonic field can separate grinding materials and media on or around the separator, so that the separator is prevented from being blocked; but also can provide composite kinetic energy by the grinding medium, thereby improving the grinding efficiency. Meanwhile, the grinding materials with small diameters are easy to form aggregation, the grinding materials outside the separator and the like can be dispersed through an ultrasonic field, the grinding materials entering the separator can also be dispersed, and subsequent secondary dispersion treatment is avoided. Meanwhile, the working temperature of the ultrasonic generator is effectively reduced through the cooling mechanism, the reliability of continuous working is improved, and the aggregation effect of heat on the grinding materials with smaller diameters can be avoided.

Description

Ultrasonic field separation device and system

Technical Field

The invention relates to the technical field of ball milling, in particular to an ultrasonic field separation device and system.

Background

The existing grinding system adopting a grinding ball mode realizes grinding and crushing through interaction such as contact between media and grinding materials, generates a large amount of heat in a long-time continuous grinding process, and grinding media rise along with the temperature of a working tool in a grinding cavity, so that the grinding efficiency is influenced, and adverse effects are also generated on equipment parts. A cooling system is usually needed during grinding, and the existing cooling system is usually arranged on a grinding cylinder, so that part of heat can be taken away, and the working temperature is reduced. However, this type of grinding machine can only cool the temperature of a local surface, and a large amount of heat is concentrated inside the grinding machine when grinding is performed, so that the temperature inside the grinding cylinder cannot be effectively reduced.

Meanwhile, a grinding system usually adopts a continuous grinding process, and materials meeting grinding requirements are discharged without stopping grinding, so that the materials can be conveniently used in the subsequent process, the materials meeting the requirements are separated from a grinding ball (grinding medium) and material mixture, the existing separator mostly adopts a separation mesh screen structure, the grinding ball and the grinding materials can be gathered towards the separator during separation, and the separation mesh screen is easy to block at a separation port, so that the material separation efficiency is influenced. At present, two main modes are available for separating grinding balls and ground materials in a ball milling system, one mode is static separation, namely a separation mesh screen is fixed between a material outlet and a grinding cavity, the separation mesh with the structure is in a fixed state during working, and is easy to gather on the surface of the separation mesh screen in the separation process, so that a separation port is blocked, and the separation efficiency is influenced; and secondly, dynamic separation, namely the separation mesh screen rotates at a high speed, grinding balls or larger particles are not blocked or attached to the separator on the surface of the separator by utilizing the centrifugal force generated by the rotation of the separation mesh screen, and smaller grinding materials are discharged through negative pressure, so that the separation efficiency is not influenced, but the structure is complex, the separator needs to be driven to rotate, and the power consumption of equipment is increased.

Disclosure of Invention

The invention mainly solves the technical problem of providing an ultrasonic field separation device and an ultrasonic field separation system, wherein the ultrasonic field separation device can avoid the formation of aggregation on the surface of a separation mesh screen to block a separation port, improve the separation efficiency and reduce the working temperature in a grinding cylinder.

In order to solve the above problems, the present invention provides an ultrasonic field separating device. The ultrasonic field separation device comprises a separator and an ultrasonic generator which enables grinding media and grinding materials inside and outside the separator to move, wherein the separator is provided with a cooling mechanism.

Further, the separator and the ultrasonic generator are respectively fixed to the flange.

Further, the cooling mechanism comprises a liquid cooling mechanism.

The cooling mechanism comprises a plurality of liquid cooling pipes, wherein the liquid cooling pipes form a cylindrical cooling pipe body, two ends of the cooling pipe body are respectively fixed with a fixing plate and a flange, water grooves for communicating the liquid cooling pipes are respectively arranged on the flange and the fixing plate, a cooling separation gap is arranged between every two adjacent liquid cooling pipes, and a water inlet and a water outlet which are communicated with the water grooves are respectively arranged on the flange.

Further, the reduced temperature separation gap is larger than the separation gap on the separator.

Further, the liquid cooling pipes are arranged in parallel.

Further, the liquid cooling pipe is flat.

Furthermore, the water inlet and the water outlet are located on the flange at the position with the maximum linear distance.

The cooling mechanism comprises a plurality of liquid cooling pipes, the liquid cooling pipes are in a cylindrical shape, one end of each cooling pipe is communicated with the adjacent liquid cooling pipes in sequence, the other end of each cooling pipe is fixed to a flange, the flange is provided with a water tank for communicating the liquid cooling pipes, a cooling separation gap is arranged between every two adjacent liquid cooling pipes, and the flange is provided with a water inlet and a water outlet which are communicated with the water tank respectively.

Furthermore, the liquid cooling mechanism comprises a liquid cooling pipe forming a water loop, two ends of the liquid cooling pipe are respectively fixed with a flange, and the flange is provided with a water inlet and a water outlet which are communicated with the liquid cooling pipe.

Further, the liquid cooling pipe is of a spiral structure, and a cooling separation gap is arranged between every two adjacent spirals.

Further, the separator is a mesh screen type separator, the mesh screen type separator is provided with a separation cavity communicated with the separation outlet, and the ultrasonic generator and the cooling mechanism are arranged in the separation cavity.

Further, the cooling mechanism is located between the ultrasonic generator and the separator.

Further, the ultrasonic field separation device also comprises a controller for controlling the operation of the ultrasonic generator.

The invention also provides a grinding system comprising a grinding cylinder and an ultrasonic field separating device located in the grinding cylinder, wherein the ultrasonic field separating device comprises a separator with a separating cavity and an ultrasonic generator for moving grinding media and ground materials inside and outside the separator, and the separator is provided with a cooling mechanism.

Further, the cooling mechanism comprises a liquid cooling mechanism.

Further, the liquid cooling pipes are arranged in parallel.

Further, the liquid cooling pipe is flat.

The invention provides an ultrasonic field separation device and a system, wherein the ultrasonic field separation device comprises a separator and an ultrasonic generator which enables grinding media and grinding materials inside and outside the separator to move, and the separator is provided with a cooling mechanism. When the ultrasonic generator is used, an ultrasonic field is generated in the separator through the ultrasonic generator, and when the power of the ultrasonic generator is set to be larger, the ultrasonic field can be arranged outside the separator, so that ground materials and media on or around the separator are separated, the separator can be prevented from being blocked, and the discharging smoothness is improved; but also provides composite kinetic energy for the grinding medium and improves the grinding efficiency. Meanwhile, the grinding materials with small diameters are easy to form aggregation, the grinding materials and grinding media outside the separator can be dispersed through an ultrasonic field generated by the ultrasonic generator, and the separated grinding materials, namely the grinding materials in the separator, can be dispersed, so that the subsequent secondary dispersion treatment is avoided. Meanwhile, the ultrasonic field can release certain heat, the working temperature of the ultrasonic generator is effectively reduced through the cooling mechanism, the reliability of continuous working is improved, and the aggregation effect of the heat on the grinding materials with smaller diameters can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of an ultrasonic field separation device.

Fig. 2 is an exploded view of an embodiment of an ultrasonic generator.

Fig. 3 is an enlarged schematic view of the structure of fig. 2.

FIG. 4 is a schematic cross-sectional axial view of another embodiment of the abrasive system.

The objectives, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The following claims of the present invention are further detailed in conjunction with the detailed description of the embodiments and the accompanying drawings, and it is to be understood that the described embodiments are only a subset of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any inventive work also belong to the protection scope of the present invention.

It should be understood that in the description of the embodiments of the present invention, all directional terms, such as "upper", "lower", "left", "right", "front", "back", etc., indicate orientations or positional relationships based on the orientations, positional relationships, or the orientations or positional relationships that the products of the present invention usually use, which are only used for the convenience of simplifying the description of the present invention, and do not indicate or imply that the devices, elements, or components that are referred to must have specific orientations and specific orientation configurations, and should not be construed as limiting the present invention. For the purpose of explaining only the relative positional relationship between the respective components, the movement, and the like, as shown in the drawings, when the specific posture is changed, the directional indication may be changed accordingly.

Furthermore, the use of ordinal terms such as "first", "second", etc., in the present application is for distinguishing between similar elements and not intended to imply or imply relative importance or the number of technical features indicated. The features defining "first" and "second" may be explicit or implicit in relation to at least one of the technical features. In the description of the present invention, "a plurality" means at least two, i.e., two or more, unless expressly defined otherwise; the meaning of "at least one" is one or both.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood in a broad sense, and for example, the positional relationship between the components may be fixed relatively, or the components may be physically fixed, or may be detachably connected, or may be integrated into a single structure; the connection can be mechanical connection or electrical signal connection; either directly or indirectly through intervening media or components; the two elements can be communicated with each other or can be mutually interacted, and unless the specification explicitly defines otherwise, the corresponding function or effect cannot be realized in other understanding manners, and the specific meaning of the terms in the invention can be understood by a person skilled in the art according to specific conditions.

The controller and the control circuit that may be involved in the present invention are conventional control techniques or units for those skilled in the art, and the control circuit of the controller may be implemented by those skilled in the art by using conventional techniques, such as simple programming. The power supply also adopts the prior art, and the main technical point of the invention lies in the improvement of mechanical devices, so the invention does not need to describe the specific circuit control relation and circuit connection in detail.

As shown in fig. 1 and 3, the present invention provides an embodiment of an ultrasonic field separating apparatus.

The ultrasonic field separation device comprises a separator 3 and an ultrasonic generator 1 which vibrates the separator 3 or moves grinding media and grinding materials around the separator, wherein the separator 3 is provided with a cooling mechanism 4.

In particular, the ultrasonic field refers to the space in which the ultrasonic waves may be present, and further refers to the vibration space created by the ultrasonic generator 1 that is capable of moving the grinding media and the ground material. The separator 3 is not a point of improvement of the present invention, and the specific structure thereof is not limited as long as it functions to separate the grinding medium from the ground material.

For convenience of illustration, in this embodiment, the separator 4 is a mesh-type separator or a separation ring type separator formed by stacking separation rings, such as a mesh-type separator provided with a separation chamber communicating with a separation outlet. The separator of the present embodiment will be described by taking a mesh type separator as an example, and an ultrasonic generator and a cooling mechanism are provided in a separation chamber of the separator 3.

The cooling means 4 is used to cool the liquid including means such as water cooling means. The cooling mechanism comprises a cylindrical cooling pipe body 30 formed by a plurality of liquid cooling pipes 301, two ends of the cooling pipe body 30 are respectively connected with a first fixing plate 31 and a second fixing plate 33, the first fixing plate 31 and the second fixing plate 33 fix the cooling pipe body 30 between the first fixing plate 31 and the second fixing plate 33 through fixing rods 32, the second fixing plate 33 is fixed with a flange 2, the first fixing plate 31 and the second fixing plate 33 are respectively provided with a water tank 310 for communicating the liquid cooling pipes 301, a cooling separation gap 302 is arranged between every two adjacent liquid cooling pipes 301, and a water inlet 22 and a water outlet 21 which are communicated with the water tank 310 are arranged on the flange 2. The number of the fixing rods 32 may be two or more, and a plurality of the fixing rods are uniformly distributed.

In order to improve the cooling effect, each liquid cooling pipe 301 is sequentially communicated end to end, so that each liquid cooling pipe 301 is connected in series, cooling water entering through the water inlet 22 of the flange 2 passes through the water tank 310, can be discharged or circulated through the water outlet 21 after passing through each liquid cooling pipe 301 in sequence, and flowing cooling water is guaranteed to exist in each liquid cooling pipe 301.

The liquid cooling pipes 301 are arranged in parallel to each other as required. The cross section of the liquid cooling pipe 301 is of a flat structure, so that a longer cooling separation gap 302 can be formed in the moving direction of the material, the contact time of the liquid cooling pipe and the material is prolonged, and the heat dissipation efficiency is improved.

The water inlet 22 and the water outlet 21 are located at the positions with the maximum linear distance on the flange, so that the water cooling path can be ensured to be maximum, and the heat dissipation efficiency is improved.

The cooling mechanism may also employ the second embodiment. The cooling mechanism comprises a plurality of cooling pipe bodies 30 with liquid cooling pipes 301 formed in a cylindrical shape, two ends of each cooling pipe body 30 are respectively connected with a first fixing plate 31 and a flange 2, the first fixing plate 31 and the flange 2 fix the cooling pipe bodies 30 between the first fixing plate 31 and the flange 2 through fixing rods 32, and the flange 2 is provided with a water tank (not shown in the drawing) which enables the liquid cooling pipes 301 to be communicated, and the water tank is communicated with a water inlet 22 and a water outlet 21 on the flange 2. The first fixing plate 31 is also provided with another water tank (not shown in the drawings) for communicating the liquid cooling pipes 301, a cooling separation gap 302 is arranged between two adjacent liquid cooling pipes 301, wherein the flange 2 is respectively provided with a water inlet 22 and a water outlet 21 communicated with the water tank or the hole.

The cooling mechanism may also adopt the third embodiment, as required. The cooling mechanism is provided with a reduced number of first fixing plates on the basis of the second embodiment. The liquid cooling mechanism comprises a cylindrical cooling pipe body 30 formed by a plurality of liquid cooling pipes, wherein one end of the cooling pipe body 30 is communicated with the adjacent liquid cooling pipes 301 at intervals, the other end of the cooling pipe body is fixed with a flange 2, the flange is provided with a water tank (not shown in the attached drawings) for communicating the adjacent liquid cooling pipes at intervals, and when the cooling pipe is cooled, cooling water enters from a water inlet 22 and sequentially passes through each liquid cooling pipe 301 to reach a water outlet 21 to be discharged. A cooling separation gap 302 is arranged between two adjacent liquid cooling pipes 301.

According to the requirement, one end of the cooling pipe 301 located on the same side in the above embodiment may be communicated, the water inlet 22 on the flange 2 may be communicated with one cooling pipe 301, the water outlet 21 may be communicated with only another cooling pipe 301, and the other cooling pipes 301 on the flange 2 side may be communicated with each other. This ensures that the cooling liquid can also reach each cooling tube 301.

The cooling mechanism may also adopt the fourth embodiment, as required. The cooling mechanism comprises a water loop formed by a liquid cooling pipe 301, the liquid cooling pipe 301 is folded into a W shape, a wave shape or a pulse wave shape, and the cylindrical structure is formed by enclosing the water loop. Both ends of the liquid cooling pipe 301 are fixed to the flanges 2, respectively, and the flanges 21 are provided with a water inlet 22 and a water outlet 21 for communicating with the liquid cooling pipe. When in use, a water cooling loop with one flow direction can be formed.

According to the needs, one liquid cooling pipe 301 also can set up to helical structure (the attached drawing does not mark), is equipped with cooling separation clearance between the adjacent spiral, and the both ends of liquid cooling pipe 301 communicate with the water inlet and the delivery port of flange respectively. The cooling mechanism may also be provided between the sonotrode 1 and the separator 4, as required.

In order to control the ultrasonic generator 1, the ultrasonic field separation device further includes a controller (not shown in the figure) for controlling the operation of the ultrasonic generator, and the controller may be composed of a single chip microcomputer and a peripheral circuit thereof.

The ultrasonic generator 1 includes a rod-shaped ultrasonic generator or other components or devices capable of generating an ultrasonic field.

When the ultrasonic generator is used, an ultrasonic field is generated in the separator through the ultrasonic generator, and when the power of the ultrasonic generator is set to be larger, the ultrasonic field can be arranged outside the separator, so that ground materials and media on or around the separator are separated, the separator can be prevented from being blocked, and the discharging smoothness is improved; but also provides composite kinetic energy for the grinding medium and improves the grinding efficiency. Meanwhile, the grinding materials with small diameters are easy to form aggregation, the grinding materials and grinding media outside the separator can be dispersed through an ultrasonic field generated by the ultrasonic generator, and the separated grinding materials, namely the grinding materials in the separator, can be dispersed, so that the subsequent secondary dispersion treatment is avoided. Meanwhile, the ultrasonic generator can release certain heat when working, the working temperature of the ultrasonic generator is effectively reduced through the cooling mechanism, the reliability of continuous working is improved, and the aggregation effect of the heat on the grinding materials with smaller diameters can be avoided. Meanwhile, due to the cavitation effect of the ultrasonic waves in the liquid grinding medium, an explosion effect can be formed on the surfaces of the particles, and the nano-crystallization progress of the material particles in the space outside the separator can be accelerated. And the ultrasonic generator is arranged in the separation cavity of the separator, and can also perform the functions of dispersion and secondary grinding on the materials separated in the separation cavity. But also avoids the occurrence of clogging phenomena on the surface of the separator.

As shown in fig. 4, the present invention also provides a grinding system comprising a grinding cylinder C and an ultrasonic field separating device a located inside the grinding cylinder C, the ultrasonic field separating device a comprising a separator 4 with a separating chamber and an ultrasonic generator 1 for moving grinding media and ground material inside and outside the separator 4, said separator 1 being provided with cooling means 3.

Specifically, the grinding system is provided with a grinding cylinder C, the grinding cylinder C is provided with a feeding hole C2, a driving shaft B1 is arranged in the grinding cylinder C, the driving shaft B1 is provided with a dispersion wheel B2, and the dispersion wheel B2 drives a driving shaft B1 by a driving mechanism, such as a motor, so that the driving shaft B1 disperses the grinding medium and the materials of the grinding cylinder C to realize grinding. The discharge port C1 of the grinding system is communicated with the ultrasonic field separation device A.

The ultrasonic field separation device A adopts the structure of the embodiment, and comprises a separator 3 and an ultrasonic generator 1 which enables the separator 3 to vibrate or enables grinding media and grinding materials around the separator to move, wherein the separator 3 is provided with a cooling mechanism 4.

The ultrasonic field separation device A comprises a separator 3 and an ultrasonic generator 1 which enables the separator 3 to vibrate or enables grinding media and grinding materials around the separator to move, and the separator 3 is provided with a cooling mechanism 4.

Specifically, the ultrasonic field refers to a vibration space capable of generating regular motion energy, and further refers to a vibration space capable of enabling the grinding medium and the ground material to move, which is generated by the ultrasonic generator 1. The separator 3 is not a point of improvement of the present invention, and the specific structure thereof is not limited as long as it functions to separate the grinding medium from the ground material.

When the ultrasonic generator is used, an ultrasonic field is generated in the separator through the ultrasonic generator, and when the power of the ultrasonic generator is set to be larger, the ultrasonic field can be arranged outside the separator, so that ground materials and media on or around the separator are separated, the separator can be prevented from being blocked, and the discharging smoothness is improved; but also provides composite kinetic energy for the grinding medium and improves the grinding efficiency. Meanwhile, the grinding materials with small diameters are easy to form aggregation, the grinding materials and grinding media outside the separator can be dispersed through an ultrasonic field generated by the ultrasonic generator, and the separated grinding materials, namely the grinding materials in the separator, can be dispersed, so that the subsequent secondary dispersion treatment is avoided. Meanwhile, the ultrasonic field can release certain heat, the working temperature of the ultrasonic generator is effectively reduced through the cooling mechanism, the reliability of continuous working is improved, and the aggregation effect of the heat on the grinding materials with smaller diameters can be avoided.

Meanwhile, due to the cavitation effect of the ultrasonic waves in the liquid grinding medium, an explosion effect can be formed on the surfaces of the particles, and the nano-crystallization progress of the material particles in the space outside the separator can be accelerated. And the ultrasonic generator is arranged in the separation cavity of the separator, and can also perform the functions of dispersion and secondary grinding on the materials separated in the separation cavity. But also avoids the occurrence of clogging phenomena on the surface of the separator.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features thereof without departing from the spirit and scope of the present invention.

Claims

1. An ultrasonic field separator comprises a separator and an ultrasonic generator which enables grinding media and grinding materials inside and outside the separator to move, and is characterized in that the separator is provided with a cooling mechanism.

2. The ultrasonic field separating device according to claim 1, wherein the cooling mechanism comprises a plurality of liquid cooling pipes forming a cylindrical cooling pipe body, both ends of the cooling pipe body are respectively fixed to the fixing plate and the flange, the flange and the fixing plate are respectively provided with a guiding groove for communicating the liquid cooling pipes, a cooling separation gap is provided between two adjacent liquid cooling pipes, and the flange is respectively provided with a water inlet and a water outlet communicated with the water tank.

3. An ultrasonic field separating device according to claim 2, wherein the cool down separation gap is larger than the separation gap on the separator.

4. An ultrasonic field separating device according to claim 3, wherein the liquid-cooled tubes are arranged parallel to each other.

5. An ultrasonic field separating device according to claim 2, wherein the liquid-cooled tube is flat.

6. An ultrasonic field separating device according to claim 2, wherein the water inlet and the water outlet are located at the maximum linear distance on the flange.

7. An ultrasonic field separating device according to claim 1, wherein the separator and the ultrasonic generator are fixed to the flange, respectively.

8. An ultrasonic field separating device according to claim 1, wherein the cooling mechanism comprises a liquid cooling mechanism.

9. The ultrasonic field separating device according to claim 1, wherein the cooling mechanism comprises a plurality of liquid cooling pipes forming a cylindrical cooling pipe body, the cooling pipe body has one end in communication with the adjacent liquid cooling pipes in sequence and the other end fixed to a flange, the flange is provided with a water tank for communicating the liquid cooling pipes, a cooling separation gap is provided between the adjacent two liquid cooling pipes, and the flange is provided with a water inlet and a water outlet respectively communicating with the water tank.

10. The ultrasonic field separating device according to claim 1, wherein the liquid cooling means comprises a liquid cooling pipe forming a water loop, both ends of the liquid cooling pipe are respectively fixed to a flange provided with a water inlet and a water outlet communicating with the liquid cooling pipe.

11. An ultrasonic field separating device according to claim 10, wherein the liquid-cooled tube is of a helical structure, and a temperature-reducing separation gap is provided between adjacent helices.

12. An ultrasonic field separating device according to claim 1, wherein the separator is a mesh separator provided with a separating chamber communicating with the separating outlet, and the ultrasonic generator and the cooling mechanism are provided in the separating chamber.

13. An ultrasonic field separating device according to claim 12, wherein the cooling means is located between the ultrasonic generator and the separator.

14. An ultrasonic field separating device according to claim 1, further comprising a controller for controlling the operation of the ultrasonic generator.

15. An ultrasonic field separating device according to claim 1, wherein the ultrasonic generator comprises a rod-like ultrasonic generator.

16. A grinding system comprising a grinding vessel and an ultrasonic field separating device located in the grinding vessel, characterized in that the ultrasonic field separating device has an ultrasonic field separating device according to any one of claims 1 to 15.

17. The grinding system of claim 16, further comprising another cooling mechanism located within the grinding drum.