CN112076872A - Grinding and mixing system, method for preparing composite material and mixing method - Google Patents
Grinding and mixing system, method for preparing composite material and mixing method Download PDFInfo
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- CN112076872A CN112076872A CN202010767936.2A CN202010767936A CN112076872A CN 112076872 A CN112076872 A CN 112076872A CN 202010767936 A CN202010767936 A CN 202010767936A CN 112076872 A CN112076872 A CN 112076872A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/16—Mills provided with vibrators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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Abstract
The embodiment of the application provides a grinding and mixing system, a preparation method and a mixing method of a composite material. The grinding and mixing system comprises a vibration device; the grinding and mixing device comprises a container and grinding balls, the container is fixed on the vibrating device, and the container is used for containing materials to be ground and materials to be mixed; the vibration device is used for providing vibration in the grinding and mixing processes, and the grinding balls are used for being placed in the container to grind the material to be ground during grinding. The preparation method of the composite material is a method for preparing the composite material by using a grinding and mixing system. The mixing method is a method of mixing using a grinding and mixing system. The technical problems that the preparation of the composite material needs more equipment, the preparation process is complex and the efficiency is low are solved.
Description
Technical Field
The application relates to the technical field of composite materials, in particular to a grinding and mixing system, a preparation method and a mixing method of the composite material.
Background
The composite material is a multi-phase material and can be compounded by a metal material, an inorganic non-metal material and a high polymer material. Two or more materials coexist in one body under the state that the phase state and the performance are mutually independent by adopting a physical or chemical method, so as to achieve the purpose of improving certain performances of the materials or complementing the defects and obtaining new performances. In recent years, composite materials have been widely used in many fields, such as cemented carbide, structural members, energy technology, information technology, and high-tech bioengineering. With the continuous development of technology and market, the demand of composite materials such as aluminum-based composite materials and composite superhard materials is high, and the preparation process of the composite materials needs to keep the particle size composition and chemical components of the components unchanged.
The existing aluminum-based composite material mixing preparation process generally adopts a double-cone mixer, the mixing time is longer than 10 hours, the efficiency is low, partial components of the existing composite superhard material need to be firstly crushed in a grinder or a crusher, then the crushed superhard material powder and the bonding agent powder are mixed by adopting a three-dimensional mixer, the process is more, the process is complex, and the grinding and mixing time is longer than 2 hours.
Therefore, the preparation of the composite material requires more equipment, the preparation process is complex, the efficiency is low, and the technical problem which needs to be solved by the technical personnel in the field is urgent.
The above information disclosed in the background section is only for enhancement of understanding of the background of the present application and therefore it may contain information that does not form the prior art that is known to those of ordinary skill in the art.
Disclosure of Invention
The embodiment of the application provides a grinding and mixing system, a preparation method of a composite material and a mixing method, and aims to solve the technical problems of more equipment, complex preparation process and lower efficiency in the preparation of the composite material.
The embodiment of the application provides a grind and hybrid system, includes:
a vibrating device;
the grinding and mixing device comprises a container and grinding balls, the container is fixed on the vibrating device, and the container is used for containing materials to be ground and materials to be mixed;
the vibration device is used for providing vibration in the grinding and mixing processes, and the grinding balls are used for being placed in the container to grind the material to be ground during grinding.
The embodiment of the application also provides a preparation method of the composite material, which comprises a step of vibration grinding, wherein the step of vibration grinding specifically comprises the following steps:
putting the material to be ground and the grinding balls into a container according to a preset mass ratio;
starting a vibrating device to vibrate according to the value of a preset vibrating grinding parameter, grinding the material until the preset grinding time is reached, and stopping the vibration of the vibrating device to enable the grain size distribution of the ground material to reach a target value; wherein the vibration grinding parameters comprise vibration frequency, vibration acceleration and grinding time;
and sieving to separate the grinding balls and the ground material.
The embodiment of the application also provides a composite material mixing method, which comprises the following steps:
putting materials to be mixed into the container according to a preset proportion;
starting a vibrating device to vibrate according to the value of a preset vibration mixing parameter, mixing the materials to be mixed until the preset mixing time is reached, and stopping the vibration of the vibrating device to enable the mixing uniformity of the mixed materials to reach a target value; wherein the vibration mixing parameters comprise vibration frequency, vibration acceleration and mixing time.
Due to the adoption of the technical scheme, the embodiment of the application has the following technical effects:
the grinding and mixing system of this application embodiment, simple structure can be used for grinding, can be used for mixing again, can also be used for grinding earlier the back mixing, is a multi-functional system. Can select the purpose according to the actual need, only need a set of equipment just can realize multiple functions. Meanwhile, the grinding and mixing system of the embodiment of the application adopts a mode of vibration grinding and vibration mixing, so that the grinding efficiency and the mixing efficiency are higher.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a perspective view of a grinding and mixing system according to one embodiment of the present disclosure;
FIG. 2 is a side view of the grinding and mixing system of FIG. 1;
FIG. 3 is a flow chart of a method of making a composite material according to an embodiment of the present disclosure;
fig. 4 is a flow chart of a method for preparing a composite material to form a cylindrical aluminum-based composite material according to an embodiment of the present disclosure.
Description of reference numerals:
1 a vibration device is arranged on the base plate,
2 grinding and mixing device, 21 container,
221 nozzle, 222 delivery tube, 223 control valve, 224 flow meter,
23 flexible concertina-type protective cover.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
FIG. 1 is a perspective view of a grinding and mixing system according to one embodiment of the present disclosure; FIG. 2 is a side view of the grinding and mixing system of FIG. 1.
As shown in fig. 1 and 2, the grinding and mixing system according to the embodiment of the present application includes:
a vibration device 1;
the grinding and mixing device 2 comprises a container 21 and grinding balls, the container 21 is fixed on the vibrating device 1, and the container 21 is used for containing materials to be ground and materials to be mixed;
the vibration device is used for providing vibration in the grinding and mixing processes, and the grinding balls are used for being placed in the container to grind the material to be ground during grinding.
The grinding and mixing system of this application embodiment, simple structure can be used for grinding, can be used for mixing again, can also be used for grinding earlier the back mixing, is a multi-functional system. Can select the purpose according to the actual need, only need a set of equipment just can realize multiple functions. Meanwhile, the grinding and mixing system of the embodiment of the application adopts a mode of vibration grinding and vibration mixing, so that the grinding efficiency and the mixing efficiency are higher.
In practice, as shown in fig. 1 and 2, the container 21 is a capped container 21, the cap of which is used to prevent spillage of the material.
The mode that vibration grinding and vibration mix for the action of material is great, and the container of taking the top cap can prevent to spill over at the in-process material of grinding and mixing.
Specifically, the vibration device is a vibration device based on the mechanical resonance principle, and the frequency emitted by the vibration device is consistent with the natural frequency of the vibration device. Mechanical resonance enables large vibration amplitudes at low frequencies, for example in the range between about 60Hz to about 65 Hz. These large amplitudes create a strong sinusoidal acoustic field inside the mixing and shaping device, providing efficient and intense mixing and de-bubbling of the formed charge.
In the implementation, the grinding and mixing system provided by the embodiment of the application can find the resonant frequency of the material in a self-adaptive manner, and realizes the resonant grinding and resonant mixing of the material, so that the grinding and mixing efficiency is very high.
When solid materials are required to be added into the container or the materials are required to be taken out of the container, corresponding operation can be conveniently carried out only by opening the top cover. Many times it is also desirable to add a liquid to the vessel, either as one of the materials or as a dispersing solvent during the mixing process.
Thus, in practice, as shown in fig. 1 and 2, the grinding and mixing system further comprises a liquid addition device comprising a nozzle 221, a delivery pipe 222, a liquid storage tank, a control valve 223 and a flow meter 224;
the delivery pipe 222 is communicated with the nozzle 221 and the liquid storage tank, the control valve 223 is installed on the delivery pipe 222 for controlling the on-off of the delivery pipe 222, and the flow meter 224 is installed on the delivery pipe 222 for metering the flow of the added liquid;
wherein, the top cover of the container is provided with a liquid adding hole; the delivery pipe 222 can rotate to bring the nozzle 221 to face the liquid inlet of the container and to be staggered with respect to the container 21; the liquid storage tank is used for containing liquid, and the nozzle is used for adding liquid.
When solid materials need to be added into the container or taken out of the container, the conveying pipe is rotated to drive the nozzle to be staggered with the container, so that the top cover of the container can be opened, and the solids can be added or taken out. And then, the nozzle is opposite to the liquid adding hole of the container, so that the liquid is added into the container through the liquid adding device and the liquid adding hole of the container. The liquid is filled into the liquid storage tank in advance, and when the preset liquid filling working procedure is reached, the liquid is added into the container through the liquid filling device, and the liquid can be pressed by a pressure pump or sucked in vacuum.
For better feeding of the liquid into the container, as shown in fig. 1 and 2, the grinding and mixing system further comprises:
a flexible organ type protective cover 23, the upper end of the flexible organ type protective cover 23 is fixed with the delivery pipe 222 to enclose the nozzle 221 in the flexible organ type protective cover 23, and the lower end of the flexible organ type protective cover 23 can be detachably fixed on the top cover of the container 21;
wherein the nozzle 221, the inner cavity of the flexible organ type protection cover 23 and the liquid adding hole form a liquid adding channel.
The flexible organ type protective cover can deform to a certain extent, when the vibration device vibrates to drive the whole system to vibrate, the flexible organ type protective cover can deform adaptively, and the space between the nozzle and the liquid adding hole is kept communicated, namely when the position of the nozzle changes, the nozzle, the inner cavity of the flexible organ type protective cover and the liquid adding hole are still kept to form a liquid adding channel.
In an embodiment, the grinding and mixing system further comprises:
a control system;
the control system is in communication connection with the vibration device and is used for controlling the vibration of the vibration device;
the control system is respectively in communication connection with the control valve and the flowmeter and is used for controlling the on-off of the delivery pipe so as to control the flow of the liquid added into the nozzle.
The control system realizes the control of the vibration device and the control of the flow of the added liquid.
In practice, the materials that can be ground and mixed using the grinding and mixing system are as follows:
the material to be ground and the material to be mixed with the belt may include one or more of:
metal powder, silicon carbide, graphene, carbon fiber, ceramic powder, diamond micro powder, cubic boron nitride abrasive, resin powder, inorganic filler, oxidant, solvent and the like;
wherein the metal powder can be aluminum powder, magnesium powder and boron powder; the resin powder can be PVC or resin powder; the inorganic filler may be silicate and calcium carbonate.
In practice, the liquid that can be added by the liquid addition device of the grinding and mixing system can include one or more of the following:
distilled water, absolute ethyl alcohol, ethyl acetate, tetrahydrofuran, methyl tert-butyl ether, acrylonitrile, trichloromethane and the like.
There are various methods of preparing the composite material using the grinding and mixing system of example one, resulting in a method of preparing the composite material. The preparation method of the composite material comprises the following steps: grinding, mixing, and mixing. The following methods for producing the composite materials are described separately.
Example two
Fig. 3 is a flow chart of a method of making a composite material according to an embodiment of the present disclosure. The method of making the composite material of the embodiments of the present application includes milling. The preparation method of the composite material of the embodiment of the application comprises a step of vibration grinding, as shown in fig. 3, the step of vibration grinding specifically comprises the following steps:
step S110: putting the material to be ground and the grinding balls into a container according to a preset mass ratio;
step S120: starting a vibrating device to vibrate according to the value of a preset vibrating grinding parameter, grinding the material until the preset grinding time is reached, and stopping the vibration of the vibrating device to enable the grain size distribution of the ground material to reach a target value;
wherein the vibration grinding parameters comprise vibration frequency, vibration acceleration and grinding time;
step S130: and sieving to separate the grinding balls and the ground material.
The preparation method of the composite material in the embodiment of the application adopts a vibration grinding mode, and the grain size distribution of the ground material reaches a target value. Firstly, putting a material to be ground and grinding balls into a container according to a preset mass ratio; and then, starting a vibration device to vibrate according to the value of a preset vibration grinding parameter, wherein the vibration frequency, the vibration acceleration and the vibration time, namely the grinding time, are preset according to the target values of the grain size distribution of the material and the ground material. Thus, after vibration grinding, the material with the grain size distribution reaching the target value can be obtained. And the grinding balls and the ground materials can be separated by sieving, the grinding balls with larger diameters are separated by sieving, and the undersize materials are the ground materials. According to the preparation method of the composite material, during grinding, the process is simple, and the vibration and grinding are combined to form a vibration grinding mode, so that the grinding efficiency is high; meanwhile, the grinding is precise grinding, and the precision is that the grain size distribution of the ground material reaches a target value.
Specifically, the preparation method of the composite material is particularly suitable for grinding materials to be ground, which are materials with various particle sizes and need to be mixed according to certain particle size gradation. The material to be ground with large particle size and the grinding balls are placed in a container, and the particle size grading of the ground material can reach a target value by controlling the material to be ground and the grinding balls according to a preset mass ratio, and vibrating the values of grinding parameters, the diameters of the grinding balls and the materials of the grinding balls. After the type and the granularity of the material to be ground are determined, and the target value of the granularity grading of the ground material is determined, the preset mass ratio of the material to be ground and the grinding balls matched with the material to be ground, the value of the vibration grinding parameter, the diameter of the grinding balls and the material of the grinding balls are searched, and the process can be searched only by spending time.
In practice, the material to be ground may be not only one, but also two, or three, or four, or five materials; it should be noted that there may be a plurality of kinds of materials to be ground, and the number of kinds is not limited to the above-mentioned limitation, and in general, it may be one kind, or two or more kinds.
In the implementation, the mass ratio of the material to be ground to the grinding balls is greater than or equal to the mass ratio
Less than or equal to 5;
the diameter of the grinding ball is greater than or equal to 2 mm and less than or equal to 25 mm;
the grinding balls are stainless steel grinding balls, or ceramic balls, or wood balls.
The mass ratio of the value range, the diameter of the grinding balls and the material of the grinding balls are matched through vibration mixing parameters, so that various materials can be realized, and the material with large granularity is ground into the ground material with various granularities and distributed according to the granularity grading.
Specifically, the vibration device is a vibration device based on the mechanical resonance principle, and the frequency emitted by the vibration device is consistent with the natural frequency of the vibration device. Mechanical resonance enables large vibration amplitudes at low frequencies, for example in the range between about 60Hz to about 65 Hz. These large amplitudes generate a strong sinusoidal sound field inside the container, so that an efficient and intense grinding takes place between the material to be ground and the grinding balls. The resonant grinding mode has small energy loss, and most of the mechanical energy applied by the vibration device is used for vibration grinding, so that the grinding efficiency is high, and the energy-saving effect is quite remarkable.
In the implementation, the grinding and mixing system of the first embodiment of the application can find the resonant frequency of the material to be ground in a self-adaptive manner, and realizes the interaction between the material to be ground and the grinding balls, so that the grinding efficiency of the material to be ground is very high. I.e. the frequency of the vibrations in the parameters of the vibratory grinding is determined by the type of material.
Specifically, when the vibration grinding is performed, the value of the vibration acceleration may be related to the damping characteristic of the material to be ground, the mass of the material to be ground, the filling volume percentage of the material to be ground in the container, and other influencing factors.
In an implementation, the range of the vibration acceleration of the vibration grinding parameter is less than or equal to 150 gravitational accelerations.
In the implementation, the value range of the grinding time of the vibration grinding parameter is greater than or equal to 1 minute and less than or equal to 20 minutes.
The grinding time of the vibration grinding parameters is controlled, and the premise is provided for controlling the whole preparation time.
In the implementation, the average particle size of the material to be ground can be more than 10 times of the average particle size of the ground material by controlling the material to be ground and the grinding balls according to the preset mass ratio, the value of the vibration grinding parameters, the diameter of the grinding balls and the material of the grinding balls.
Considering that, in the same grinding, a plurality of materials are put into a container, the particle size distribution of each material after grinding reaches a target value, the preset mass ratio of various materials to be ground and grinding balls matched with the material to be ground is searched, the value of the vibration grinding parameter, the diameter of the grinding balls and the material of the grinding balls are complex. Therefore, in this case, it is considered that grinding is performed once for each material to be ground to form a grain size distribution of each ground material to a target value. Thereafter, the various milled materials may be subjected to further processing, such as mixing, etc., as desired.
In practice, the sum of the grinding times of each vibration grinding is in the range of 3 minutes or more and 50 minutes or less.
And finally, controlling the sum of the mixing time of each vibration grinding by controlling the value of the vibration grinding parameter of the vibration grinding.
EXAMPLE III
The method of preparing the composite material of the embodiments of the present application includes grinding followed by mixing. In the preparation method of the composite material in the embodiment of the application, the grinding method is the grinding method in the second embodiment.
The preparation method of the composite material of the embodiment of the application further comprises the following steps:
step S210: putting materials to be mixed into the container according to a preset proportion; wherein the materials to be mixed comprise ground materials and directly mixed materials;
step S220: starting a vibrating device to vibrate according to the value of a preset vibration mixing parameter, mixing the materials to be mixed until the preset mixing time is reached, and stopping the vibration of the vibrating device to enable the mixing uniformity of the mixed materials to reach a target value;
wherein the vibration mixing parameters comprise vibration frequency, vibration acceleration and mixing time.
The preparation method of the composite material provided by the embodiment of the application is a mode of firstly vibrating and grinding and then vibrating and mixing, and the mixing uniformity after mixing reaches a target value. Firstly, putting materials to be mixed into the container according to a preset proportion; and then, starting a vibration device to vibrate according to the value of a preset vibration mixing parameter, wherein the vibration frequency, the vibration acceleration and the vibration time, namely the mixing time, are preset according to the target values of the mixing uniformity of the materials to be mixed and the mixed materials. Therefore, after vibration mixing, the mixed material with the mixing uniformity reaching the target value can be obtained. According to the preparation method of the composite material, the process is simple during mixing, and the vibration and mixing are combined to form a vibration mixing mode, so that the mixing efficiency is high; meanwhile, the mixing is precise, and the precision is that the mixing uniformity of the mixed materials reaches a target value.
Specifically, when the preparation method of the composite material is used for mixing, the materials to be mixed are placed in a container, and the mixing uniformity of the mixed materials can reach a target value by controlling the value of the vibration grinding parameter. The predetermined proportions of the materials to be mixed are determined in accordance with the composite material to be formed. After the preset proportion of the materials to be mixed and the target value of the mixing uniformity of the mixed materials are determined, the value of the vibration mixing parameter matched with the preset proportion is searched, and the value needs to be found in a little time.
The self-adaptive algorithm of the grinding and mixing system can quickly find the matched vibration mixing parameter value, the time consumption is 30 seconds, the repeated batch mixing process can record the grinding and mixing system, and the matched parameter value can be quickly found in second-level time when the grinding and mixing system is started next time.
All the materials to be mixed are sometimes put into the container at once for mixing, and by that time, the mixing of all the materials is completed.
But more often all the materials to be mixed need to be added to the vessel in portions according to a predetermined process sequence. In this case, the method for preparing the composite material includes a plurality of vibration mixing steps, and each vibration mixing step specifically includes:
putting the materials to be mixed into the container according to a preset proportion;
starting a vibrating device to vibrate according to a preset value of a vibration mixing parameter of the vibration mixing, mixing the materials to be mixed until a preset mixing time is reached, and stopping the vibration of the vibrating device to enable the mixing uniformity of the mixed materials to reach a target value;
until all the materials to be mixed are mixed.
Therefore, all the materials to be mixed are mixed, and the mixing uniformity of the mixed materials reaches a target value.
In each vibration mixing process, the preset proportion of the materials to be mixed each time is determined according to the composite material to be mixed. After the preset proportion of the materials to be mixed each time and the target value of the mixing uniformity of the mixed materials each time are determined, the value of the vibration mixing parameter of this time matched with the preset proportion is searched, and the value can be searched only by spending time.
In real time, the sum of the mixing time of each vibration mixing is in a range of 3 minutes or more and 50 minutes or less.
And finally, controlling the sum of the mixing time of each vibration mixing by controlling the value of the vibration mixing parameter of the vibration mixing.
All the materials to be mixed are sometimes solid materials, and so on, the mixing of all the materials is completed.
The vibration mixing process is to transmit the low-frequency vibration kinetic energy of high acceleration into the container, turbulent mixing (millimeter size level) and microscopic acoustic mixing (30 micron size level) generated by the materials are realized, the materials are quickly and uniformly mixed, and the agglomeration phenomenon of the micro-nano materials can be reduced. The preparation method of the composite material is not only suitable for mixing materials above millimeter level, but also suitable for mixing materials at micrometer level and nanometer level, solves the agglomeration phenomenon of the mixture of the materials at micrometer level and nanometer level, and has wide application range. In addition, compared with the existing slurry mixing mode, the vibration mixing mode has the advantages that the acting force among the particles of the materials is smaller, the particle size gradation and the shape of the particles of the materials can be maintained, and a method is provided for uniformly dispersing the materials at the micron level and the nanometer level.
However, sometimes the materials to be mixed include not only solid materials but also liquids, possibly as one of the materials or as a dispersing solvent. In this case, the method for preparing the composite material further comprises the steps of:
according to a preset process sequence, after the kth vibration mixing, starting a vibration device to vibrate according to preset liquid mixing parameters, adding liquid with a preset flow into the container through a liquid adding device until the preset liquid adding stage vibration time is reached, and stopping the vibration of the vibration device to enable the mixing uniformity of the liquid distributed in the material to reach a target value;
the liquid mixing parameters comprise vibration frequency, vibration acceleration, vibration time of a liquid adding stage and liquid adding speed.
Thus, the liquid is added into the container according to the preset liquid mixing parameters and mixed after the k-th vibration mixing according to the preset process sequence. The liquid with the preset flow rate is added in an atomized form, and the uniformity of liquid addition is better.
When the liquid is used as one of the materials, the liquid material and the solid material are mixed and uniformly distributed on the surface of the solid material.
When the liquid is used as a dispersing solvent, the surface of the material before the liquid is added is uniformly distributed on the surface of the solid material, and the material added after the dispersing solvent is added can be uniformly dispersed, so that when the composite material is a material with small particle size and a material with large particle size is coated on the material with small particle size, the material with small particle size of the composite material can be well coated on the material with large particle size, and the material with small particle size of 0.005-10 microns can be coated on the surface of the material with large particle size of 5-5 millimeters.
The main principle of vibration mixing is that the damping in a container tends to a fixed value, the materials are uniformly distributed by mixing, and the surface of the small-particle material coated with the large-particle material is also a representation of uniform distribution.
In the implementation, the vibration time of the liquid adding stage is longer than the actual liquid adding time.
Therefore, after the actual liquid adding is finished, the liquid adding device is still in the vibration time of the liquid adding stage and still vibrates, and the added liquid can be uniformly dispersed.
In practice, the liquid is added to the container in the form of an aerosol or a drop;
the value range of the liquid adding speed is less than or equal to 0.3 ml per minute and less than or equal to 100 liters per minute.
Depending on the nature of the liquid itself, and the process requirements for mixing, it is selected whether the liquid is added to the vessel in the form of an aerosol or as droplets. The value range of the liquid adding speed is wide in applicable range, and the appropriate liquid adding speed is selected according to the flow of liquid and the liquid adding time of actual needs.
Preferably, the value range of the volume ratio of the sum of the volumes of the materials to be mixed to the volume of the container is more than or equal to 0.1 and less than or equal to 0.75.
The vibration mixing requires a surplus space in the container, and the ratio of the sum of the volumes of the materials to be mixed in the value range to the volume of the container can provide enough surplus space.
Specifically, the vibration device is a vibration device based on the mechanical resonance principle, and the frequency emitted by the vibration device is consistent with the natural frequency of the vibration device. Mechanical resonance enables large vibration amplitudes at low frequencies, for example in the range between about 60Hz to about 65 Hz. These large amplitudes create a strong sinusoidal sound field inside the container, so that an effective and strong interaction occurs between the materials to be mixed. The resonant mixing mode has small energy loss, and most of the mechanical energy applied by the vibration device is used for vibration mixing, so that the mixing efficiency is high, and the energy-saving effect is quite remarkable.
EXAMPLE III
The method for mixing the composite material in the embodiment of the application adopts the mixing step in the third embodiment.
An aluminum matrix composite material is taken as an example.
According to the process sequence, the material addition sequence can be as follows:
the materials added for the first time comprise graphene and absolute ethyl alcohol;
the materials added for the second time comprise aluminum powder;
the third charge included silicon carbide.
Wherein, the graphene, the aluminum powder and the silicon carbide are solid materials; absolute ethyl alcohol is used as a dispersing solvent; the mass percentage of the graphene in the solid phase material can be 0.5-5%, the mass percentage of the aluminum powder in the solid phase material can be 40-85%, and the mass percentage of the silicon carbide in the solid phase material can be 10-70%. The mass of the absolute ethyl alcohol is 30-70 times of that of the graphene.
Correspondingly, the order of adding the materials to be mixed to the container may be:
adding graphene and absolute ethyl alcohol for the first time;
adding aluminum powder for the second time;
silicon carbide is added for the third time.
The first mixing time after adding the graphene and the absolute ethyl alcohol can be more than or equal to 3 minutes and less than or equal to 15 minutes, and the first vibration acceleration can be more than or equal to 25 gravitational accelerations and less than or equal to 50 gravitational accelerations;
the second mixing time after the addition of the aluminum powder may be 5 minutes or more and 10 minutes or less, and the second vibration acceleration value may be 30 gravitational accelerations or more and 60 gravitational accelerations or less;
the third mixing time after the addition of the silicon carbide may be 5 minutes or more and 15 minutes or less, and the third vibration acceleration value may be 30 gravitational accelerations or more and 65 gravitational accelerations or less.
Fig. 4 is a flow chart of a method for preparing a composite material to form a cylindrical aluminum-based composite material according to an embodiment of the present disclosure. The specific steps of mixing by using the composite material mixing method of the embodiment of the present application are shown in fig. 4:
the method comprises the following steps: putting 60 g of graphene and 1500 g of absolute ethyl alcohol into a container;
step two: 5000 grams of absolute ethyl alcohol is added into a liquid storage tank, and the lower end of the organ type protective cover is detachably fixed with a top cover of a container, so that a nozzle, an inner cavity of the flexible organ type protective cover and the liquid adding hole form a liquid adding channel;
the order of step one and step two can be reversed;
step three: starting a vibrating device to vibrate according to the preset first vibration acceleration of 25 gravitational accelerations and the first mixing time of 5 minutes, starting material mixing until the first mixing time is reached, and stopping the vibration of the vibrating device;
step four: opening a control valve of a liquid adding device, adding 1500 g of anhydrous ethanol serving as a solvent with a preset amount into a container, and closing the control valve after the anhydrous ethanol is added;
step five: adding 2000 g of FLQT3 aluminum powder into a container;
step six: starting the vibration device to vibrate according to the preset second vibration acceleration of 40 gravitational accelerations and the second mixing time of 8 minutes, continuing mixing the materials until the second mixing time is reached, and stopping the vibration of the vibration device;
step seven: 440 grams of silicon carbide (5 micron particle size) was added to the vessel;
step eight: starting a vibrating device to vibrate according to the preset third vibration acceleration of 45 gravitational accelerations and the third mixing time of 12 minutes, continuing mixing the materials until the third mixing time is reached, and stopping the vibration of the vibrating device; thus, the material mixing is completed;
step nine: taking down the container for discharging to form a material with the composite material uniformly mixed, and turning to the subsequent process;
step ten: and (3) isostatic pressing the material uniformly mixed with the composite material to obtain the ingot-shaped aluminum-based composite material.
The preparation of this application embodiment after accomplishing step ten forms cylindric aluminium base composite, and this material mechanical properties is good, and is briefly as follows: the tensile strength is more than or equal to 300MPa, and the yield strength is more than or equal to 175 MPa.
In the description of the present application and the embodiments thereof, it is to be understood that the terms "top", "bottom", "height", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In this application and its embodiments, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application and its embodiments, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (17)
1. A grinding and mixing system, comprising:
a vibrating device;
the grinding and mixing device comprises a container and grinding balls, the container is fixed on the vibrating device, and the container is used for containing materials to be ground and materials to be mixed;
the vibration device is used for providing vibration in the grinding and mixing processes, and the grinding balls are used for being placed in the container to grind the material to be ground during grinding.
2. The grinding and mixing system of claim 1, wherein the container is a capped container, the cap of the container being configured to prevent spillage of the material.
3. The grinding and mixing system of claim 2, further comprising a liquid addition device comprising a nozzle, a delivery tube, a liquid reservoir, a control valve and a flow meter;
the delivery pipe is communicated with the nozzle and the liquid storage tank, the control valve is installed on the delivery pipe and used for controlling the on-off of the delivery pipe, and the flowmeter is installed on the delivery pipe and used for metering the flow of the added liquid;
wherein, the top cover of the container is provided with a liquid adding hole; the conveying pipe can rotate to drive the nozzle to be over against a liquid adding hole of the container and to be staggered with the container; the liquid storage tank is used for containing liquid, and the nozzle is used for adding liquid.
4. The grinding and mixing system of claim 3, further comprising:
the upper end of the flexible organ type protective cover is fixed with the conveying pipe to enclose the nozzle in the flexible organ type protective cover, and the lower end of the flexible organ type protective cover can be detachably fixed on the top cover of the container;
wherein the nozzle, the inner cavity of the flexible organ type protective cover and the liquid adding hole form a liquid adding channel.
5. The grinding and mixing system of claim 4 wherein the delivery tube is a rigid delivery tube mounted on the vibratory device by a mounting bracket.
6. The grinding and mixing system of claim 4, further comprising:
a control system;
the control system is in communication connection with the vibration device and is used for controlling the vibration of the vibration device;
the control system is respectively in communication connection with the control valve and the flowmeter and is used for controlling the on-off of the delivery pipe so as to control the flow of the liquid added into the nozzle.
7. The grinding and mixing system of any of claims 1-6, wherein the grinding ball diameter ranges from 2 mm to 25 mm;
the grinding balls are stainless steel grinding balls, or ceramic balls, or wood balls;
the container is in the shape of a hollow cylinder, a hollow sphere, a hollow cone, a hollow cuboid or a hollow cube;
the container is made of stainless steel, iron, aluminum alloy, titanium alloy, polyethylene, polypropylene, polyethylene terephthalate or high-density polyethylene.
8. A method for preparing a composite material using the grinding and mixing system of any one of claims 1 to 7, comprising a step of vibrogrinding, said vibrogrinding step comprising in particular the steps of:
putting the material to be ground and the grinding balls into a container according to a preset mass ratio;
starting a vibrating device to vibrate according to the value of a preset vibrating grinding parameter, grinding the material until the preset grinding time is reached, and stopping the vibration of the vibrating device to enable the grain size distribution of the ground material to reach a target value; wherein the vibration grinding parameters comprise vibration frequency, vibration acceleration and grinding time;
and sieving to separate the grinding balls and the ground material.
9. The method according to claim 8, further comprising a step of vibratory mixing, the step of vibratory mixing comprising in particular:
putting materials to be mixed into the container according to a preset proportion; wherein the materials to be mixed comprise ground materials and directly mixed materials;
starting a vibrating device to vibrate according to the value of a preset vibration mixing parameter, mixing the materials to be mixed until the preset mixing time is reached, and stopping the vibration of the vibrating device to enable the mixing uniformity of the mixed materials to reach a target value; wherein the vibration mixing parameters comprise vibration frequency, vibration acceleration and mixing time.
10. The method according to claim 9, comprising a step of mixing by shaking a plurality of times, each step of mixing by shaking comprising in particular:
putting the materials to be mixed into the container according to a preset proportion;
starting a vibrating device to vibrate according to a preset value of a vibration mixing parameter of the vibration mixing, mixing the materials to be mixed until a preset mixing time is reached, and stopping the vibration of the vibrating device to enable the mixing uniformity of the mixed materials to reach a target value;
until all the materials to be mixed are mixed.
11. The method of claim 10, further comprising the steps of:
according to a preset process sequence, after the kth vibration mixing, starting a vibration device to vibrate according to preset liquid mixing parameters, adding liquid with a preset flow into the container through a liquid adding device until the preset liquid adding stage vibration time is reached, and stopping the vibration of the vibration device to enable the mixing uniformity of the liquid distributed in the material to reach a target value;
wherein k is a positive integer greater than or equal to 1, and the liquid mixing parameters comprise vibration frequency, vibration acceleration, vibration time at a liquid adding stage and liquid adding speed.
12. The method according to claim 11, wherein the vibration time of the charging stage is longer than the actual charging time;
adding the liquid into a container in an atomized or water-drop manner;
the value range of the liquid adding speed is less than or equal to 0.3 ml per minute and less than or equal to 100 liters per minute.
13. The method according to claim 12, wherein the ratio of the mass of the material to be ground to the mass of the grinding balls is in a range of not less than
Less than or equal to 5;
the diameter of the grinding ball is greater than or equal to 2 mm and less than or equal to 25 mm;
the grinding balls are stainless steel grinding balls, or ceramic balls, or wood balls.
14. The method according to claim 12, wherein the ratio of the sum of the volumes of the materials to be mixed to the volume of the container is in the range of 0.1 to 0.75;
the sum of the mixing time of each vibration mixing is in a value range of more than or equal to 3 minutes and less than or equal to 50 minutes;
the value range of the grinding time of the vibration grinding parameters is more than or equal to 1 minute and less than or equal to 20 minutes.
15. A method for mixing a composite material using the grinding and mixing system as set forth in any one of claims 1 to 7, comprising the steps of:
putting materials to be mixed into the container according to a preset proportion;
starting a vibrating device to vibrate according to the value of a preset vibration mixing parameter, mixing the materials to be mixed until the preset mixing time is reached, and stopping the vibration of the vibrating device to enable the mixing uniformity of the mixed materials to reach a target value; wherein the vibration mixing parameters comprise vibration frequency, vibration acceleration and mixing time.
16. The mixing method according to claim 15, comprising a step of multiple vibratory mixing, each vibratory mixing step comprising in particular:
putting the materials to be mixed into the container according to a preset proportion;
starting a vibrating device to vibrate according to a preset value of a vibration mixing parameter of the vibration mixing, mixing the materials to be mixed until a preset mixing time is reached, and stopping the vibration of the vibrating device to enable the mixing uniformity of the mixed materials to reach a target value;
until all the materials to be mixed are mixed.
17. The mixing method of claim 16, further comprising the steps of:
according to a preset process sequence, after the kth vibration mixing, starting a vibration device to vibrate according to preset liquid mixing parameters, adding liquid with a preset flow into the container through a liquid adding device until the preset liquid adding stage vibration time is reached, and stopping the vibration of the vibration device to enable the mixing uniformity of the liquid distributed in the material to reach a target value;
the liquid mixing parameters comprise vibration frequency, vibration acceleration, vibration time of a liquid adding stage and liquid adding speed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430504A (en) * | 2022-09-02 | 2022-12-06 | 深圳声共振科技有限公司 | Method for grinding bones and teeth and cold water circulating grinding container for grinding bones and teeth |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2299663Y (en) * | 1997-06-20 | 1998-12-09 | 盖国胜 | Multi-cylinder batch vibrating mill |
| CN2704423Y (en) * | 2004-06-04 | 2005-06-15 | 张天松 | Rotary vibrater |
| CN2838749Y (en) * | 2005-09-21 | 2006-11-22 | 张天松 | Planetary rotary swinging vibrator |
| CN201454605U (en) * | 2009-07-16 | 2010-05-12 | 西南科技大学 | Preparation device of Chinese medicine superfine powder |
| CN105855013A (en) * | 2016-06-17 | 2016-08-17 | 亚洲硅业（青海）有限公司 | Solid powder sample grinding device and preparation method thereof |
| CN207769932U (en) * | 2017-11-30 | 2018-08-28 | 江西石城县永盛选矿设备制造有限公司 | A kind of feeding device for wet ball mill |
| CN209465124U (en) * | 2018-10-11 | 2019-10-08 | 宜兴市海科耐火材料制品有限公司 | A kind of horizontal mill of Zirconium powder |
-
2020
- 2020-08-03 CN CN202010767936.2A patent/CN112076872B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2299663Y (en) * | 1997-06-20 | 1998-12-09 | 盖国胜 | Multi-cylinder batch vibrating mill |
| CN2704423Y (en) * | 2004-06-04 | 2005-06-15 | 张天松 | Rotary vibrater |
| CN2838749Y (en) * | 2005-09-21 | 2006-11-22 | 张天松 | Planetary rotary swinging vibrator |
| CN201454605U (en) * | 2009-07-16 | 2010-05-12 | 西南科技大学 | Preparation device of Chinese medicine superfine powder |
| CN105855013A (en) * | 2016-06-17 | 2016-08-17 | 亚洲硅业（青海）有限公司 | Solid powder sample grinding device and preparation method thereof |
| CN207769932U (en) * | 2017-11-30 | 2018-08-28 | 江西石城县永盛选矿设备制造有限公司 | A kind of feeding device for wet ball mill |
| CN209465124U (en) * | 2018-10-11 | 2019-10-08 | 宜兴市海科耐火材料制品有限公司 | A kind of horizontal mill of Zirconium powder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430504A (en) * | 2022-09-02 | 2022-12-06 | 深圳声共振科技有限公司 | Method for grinding bones and teeth and cold water circulating grinding container for grinding bones and teeth |
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