CN107413481A

CN107413481A - Liquid phase nano grinder

Info

Publication number: CN107413481A
Application number: CN201610346906.8A
Authority: CN
Inventors: 胡国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-24
Filing date: 2016-05-24
Publication date: 2017-12-01

Abstract

The invention provides a kind of liquid phase nano grinder, and for being mixed and being crushed to mixture, mixture is formed by different liquids or formed by liquid and solid particle, and liquid phase nano grinder includes：Stainless steel, mixture are mixed and crushed wherein；Pressue device, it is in fluid communication with stainless steel via feedback flow tube road and return line and forms multiple circulation loop；And drive device, it is used to drive pressue device, wherein pressue device applies pressure to mixture therethrough, so as to which mixture is driven into stainless steel, and mixture is set to form high turbulence in the mixing container, stainless steel includes limiting the container casing of container chamber and the dividing plate in container chamber, container chamber is divided into the first and second chambers by dividing plate, and feedback flow tube road is in fluid communication with first chamber, return line is in fluid communication with second chamber, opening is limited between container casing and dividing plate, first and second chambers are via open fluid communication.

Description

Liquid phase nano grinder

Technical field

The present invention relates generally to a kind of liquid phase nano grinder, for mixing and crushing by different liquids or the mixture formed by liquid and solid particle.The liquid phase nano grinder of the present invention can be used for the fields such as bio-pharmaceuticals, industrial chemical, and especially, the liquid phase nano grinder can be used for preparation and the manufacture field of ink, graphene pretreatment, carbon fiber etc..In addition, field of coating can be additionally used according to the liquid phase nano grinder of the present invention.

Background technology

Nano grinder is one of significant process for crushing emulsion or suspension production.Expand the interface between two-phase by crushing drop and solid particle.Single-phase shape-retaining force is overcome, and realizes the fine dispersion of a phase in the other phase.In crushing process, deformation force passes through Continuous Liquid Phase transmission.

However, there is the shortcomings that equipment volume is huge, and grinding particle size is uncontrollable in current nano grinder mostly.In addition, nano grinder on the market is often the Special grinder for disintegrating for single product at present, different crushing objects can not be applied to.

In recent years, people are found that a kind of phenomenon in fluid application field, when liquid internal local pressure reduces, liquid internal or liquid Gu Jiaojiemianchu can form steam or gas cavities, these holes then can be developed and crumble and fall, and this physical phenomenon occurred in liquid medium is referred to as " cavitation phenomenon ".In the Emergence and Development in hole and high temperature, high pressure, electric discharge, luminous and the ripple that impulses effect can be produced during crumbling and fall.Micro- gas core cavitation bubble that cavitation refers to be present in liquid shakes in the presence of sound wave, the growth occurred when acoustic pressure reaches certain value and the dynamic process of collapse.

Cavitation flows through liquid strand when occurring can produce strong explosion, while moment forms the local extreme high heat of point of burst（1900K-5000K）And high pressure（140MPa-170MPa kilograms of pressure）, and the microjet with strong shock wave and speed per hour up to 400km.The surface of solids that this instantaneous immense pressure can make to float on a liquid drastically is destroyed, so as to promote the abundant fusion of different material molecule or fission.It is referred to as " new technology that 21st century emerges " by international academic community using the liquid cavitation technique of this phenomenon.

The content of the invention

The invention provides a kind of liquid phase nano grinder based on cavitation.The present invention relates to flow media liquid phase nano grinder, more particularly to the technological process of liquid phase nano grinder, material and structure.Its operation principle is to make flow media is solid in the liquid phase nano grinder through overregulating and flow line or multiple circulation line to begin circulation to achieve the goal.Liquid flow aerosol thing forms low-voltage high speed by liquid phase nano grinder, high speed liquid flow suspension is imported mixing liquid stream, in low pressure under cold liquid boiling pressure, shear stress caused by the shock of liquid flow aerosol thing.Impingement region is produced microbubble core, followed by taken away by liquid stream.After liquid flow aerosol thing enters the bubble parameters area of high pressure, bubble starts to diminish and accordingly hit（Collision）Asymmetric polymerization liquid stream is produced, with high-speed impact bubble reactive site, activation division occur in solid or foreign peoples's liquid into impingement region.Because the area is up to several atmospheric pressure, it can ensure that shock and pressure will not damage external environment condition by the particular design of liquid phase nano grinder.

In order to solve one or more above mentioned problems, the invention provides a kind of liquid phase nano grinder, and for being mixed and being crushed to mixture, the mixture is formed by different liquids or formed by liquid and solid particle, characterized in that, the liquid phase nano grinder includes：Stainless steel, the mixture are mixed and crushed in the stainless steel；Pressue device, it is in fluid communication with the stainless steel via feedback flow tube road and return line and forms multiple circulation loop；And drive device, it is used to drive the pressue device, wherein, the pressue device applies pressure to the mixture therethrough, so as to which the mixture is driven into the stainless steel, and the mixture is set to form high turbulence in the stainless steel, wherein, the stainless steel includes limiting the container casing of container chamber and the dividing plate in the container chamber, the container chamber is divided into first chamber and second chamber by the dividing plate, and the feedback flow tube road is in fluid communication with the first chamber, the return line is in fluid communication with the second chamber, and wherein, opening is limited between the container casing and the dividing plate, the first chamber and the second chamber are via the open fluid communication.

Preferably, the feedback flow tube road is in fluid communication via feedback head piece and the first chamber, and the return line is in fluid communication via refluxing opening and the second chamber, wherein, the feedback head piece and the refluxing opening are away from the opening.

Preferably, the first end of the dividing plate is connected to the first wall portion of the container casing to prevent fluid from passing through, second wall portion of the second end of the dividing plate and the container casing is separated to limit the opening so as to allow fluid from, second wall portion is relative with first wall portion, and the second end is relative with the first end, wherein, the feedback head piece and the neighbouring first end of the refluxing opening and the remote the second end.

Preferably, relative a pair of end portions of the dividing plate is connected to the wall portion of the container casing to prevent fluid from passing through, relative another pair end of the dividing plate and the second wall portion of the container casing are separated to limit the opening so as to allow fluid from, wherein, the feedback head piece and the refluxing opening are adjacent to the center of the dividing plate.

Preferably, the dividing plate is arranged so that the periphery of the dividing plate and the wall portion of the container casing separate in the container chamber, so as to limit the opening between the wall portion and the periphery of the dividing plate to allow fluid from, wherein, the feedback head piece and the refluxing opening are adjacent to the center of the dividing plate.

Preferably, the pressue device includes pressurised chamber and the impeller in the pressurised chamber, and the impeller is driven by the drive device and rotated, so as in the axial direction to applying pressure by the mixture in the pressurised chamber.

Preferably, the return line is connected such that the mixture in the stainless steel enters the pressurised chamber in the tangential direction that the impeller rotates with the pressurised chamber.

Preferably, it is provided with flow control valve on the feedback flow tube road.

Preferably, the stainless steel is provided with water jacket.

Preferably, the stainless steel is provided with reinforcer in the wall portion relative with the feedback head piece.

Preferably, the stainless steel is provided with heat-insulation layer.

Preferably, the heat-insulation layer is located on the outside of the water jacket.

By said one or multiple schemes, drive device provides high pressure, to drive mixture to be circulated in multiple circulation loop.High Speed Turbulent is formed when the mixture under high pressure enters in stainless steel, so as to forming shear stress between liquid phase and liquid phase or because colliding, rubbing between liquid phase and solid particle, so as to realize mixing to mixture, crush and homogenize.

Meanwhile " aqueous phase burning " phenomenon can promote organic matter degradation in liquid.Molecular bond bursting caused by liquid cavitation, liquid molecular bond internal energy is discharged, compensate for mechanical device and input power device produces the energy that cavitation environment is consumed.Narrow sense law of conservation of energy is broken through, realizes generalized energy conservation.Out-phase liquid stream body fusion problem is captured, overturns conventional polymeric mode, great intensified response depth, in the reaction time, improves the uniformity of polymerization, stability, antitypy.The technology has efficiency high, and broken good evenness, overall process is without the advantage such as dust, no sewage pollution.Fine size, average grain diameter can reach 0.1 μm.D97 particle diameters can reach 1-3 μm.Narrow particle size distribution, make crush efficiency higher, yield is bigger.Powder granularity and distribution is set to reach world-class levels.Caused granularity continuously adjustabe, device miniaturization is simple to operate, long-term continuous stable and reliable operation.

Out-phase liquid or liquid is sufficiently mixed and is crushed with solid particle by physics mode according to the equipment of the present invention, solve the uniformity that traditional chemical mode can not be solved thoroughly, stability, the problem such as water-resistance and contaminative.

Brief description of the drawings

The present invention is specifically described below in conjunction with accompanying drawing, in the drawings：

Fig. 1 is the schematic diagram according to the first embodiment of the liquid phase nano grinder of the present invention；

Fig. 2 is the cross-sectional view of the stainless steel intercepted along line A-A in Fig. 1；

Fig. 3 is the schematic diagram according to the second embodiment of the liquid phase nano grinder of the present invention；

Fig. 4 is the schematic diagram according to the 3rd embodiment of the liquid phase nano grinder of the present invention；And

Fig. 5 is the cross-sectional view according to the pressue device of the present invention.

Reference numerals list：

1st, pressue device

11st, impeller

12nd, pressurised chamber

2nd, stainless steel

21st, container casing

211st, first chamber

212nd, second chamber

213rd, it is open

214th, charging aperture

215th, discharging opening

216th, reinforcer

217th, head piece is presented

218th, refluxing opening

22nd, dividing plate

221st, first end

222nd, the second end

223rd, 224, lateral ends

23rd, water jacket

231st, water inlet

232nd, delivery port

24th, heat-insulation layer

25th, discharge pipeline

251st, switch valve

26th, pressure gauge

3rd, flow tube road is presented

31st, flow control valve

4th, return line

5th, drive device

51st, drive shaft

C, longitudinal centre line.

Embodiment

Fig. 1 shows the schematic diagram of the first embodiment of the liquid phase nano grinder according to the present invention.As shown in figure 1, liquid phase nano grinder includes pressue device 1, stainless steel 2 and drive device 5.

Pressue device 1 receives mixture liquid stream via return line 4 from stainless steel 2.Pressue device 1 provides power by drive device 5.Specifically, drive device 5 is rotated at a high speed by impeller 11 of the driving of drive shaft 51 in the pressurised chamber 12 of pressue device 1, so as to apply axial compressive force to mixture liquid stream.Drive device 5 is, for example, motor.Drive device 5 may be coupled to controller, to be for example controlled to its rotating speed and run time.For example, for different blending objects and different Grained Requirements, different multiple circulation timings can be set.

As shown in figure 5, tangential direction of the liquid stream from return line 4 along impeller 11 enters pressurised chamber 12.Liquid stream into pressurised chamber 12 can be driven the axially front of impeller 11 by the impeller 11 rotated at a high speed, and arrive feedback flow tube road 3 by driving axially forward under the pressure that impeller 11 provides, and be further driven in stainless steel 2 and circulated next time.The blade of impeller 11 can be changed according to the difference of blending objects.

Fig. 1 is returned to, stainless steel 2 includes limiting the container casing 21 of container chamber and the dividing plate 22 in container chamber, and the mixture that container chamber allows to be formed by different liquids or formed by liquid and solid particle is mixed and crushed wherein.Container chamber is divided into first chamber 211 and second chamber 212 by dividing plate 22.First chamber 211 is in fluid communication via feedback flow tube road 3 with pressue device 1, and to receive pressurized high-velocity fluid from pressue device 1, and second chamber 212 is in fluid communication via return line 4 and pressue device 1, so as to which fluid is returned into pressue device 1.Opening 213 is formed between container casing 21 and dividing plate 22, and first chamber 211 and second chamber 212 are in fluid communication via opening 213.

Feedback flow tube road 3 is in fluid communication via feedback head piece 217 with the first chamber 211, and feedback head piece 217 carries nozzle, to spray high speed liquid flow.Flow control valve 31 is provided with feedback flow tube road 3, to provide different size of flow for different blending objects.Return line 4 is in fluid communication via refluxing opening 218 and second chamber 212.

Embodiment according to Fig. 1, stainless steel 2 is generally cylindrical, and it has approximate horizontal longitudinal centre line C.Meanwhile the shape of dividing plate 22 is designed as being attached on the inwall of stainless steel 2, for example, rectangle.It will be appreciated by persons skilled in the art that stainless steel 2 can also have other shapes, such as cuboid.

As shown in Figure 1, dividing plate 22 is connected to a wall portion of container casing 21 to prevent fluid from passing through at the first end 221 of longitudinal direction, and dividing plate 22 is separated to limit opening 213, so as to allow fluid from the second end 222 of longitudinal direction with another wall portion of container casing 21.In addition, as shown in Fig. 2 two lateral ends 223,224 of dividing plate 22 are all connected to the side wall of container casing 21 to prevent fluid from passing through.Connection between dividing plate 22 and container casing 21 is, for example, to weld.

Return to Fig. 1, feedback head piece 217 and refluxing opening 218 are respectively positioned on or neighbouring first end 221 and remote the second end 222, so that the mixture liquid stream from feedback head piece 217 returns to refluxing opening 218 via around the long path of the second end 222, without being returned directly to refluxing opening 218 from neighbouring first end 221.So it is achieved that mixture liquid stream being sufficiently mixed in container chamber and crushes.Stainless steel 21 is provided with reinforcer 216 on the top wall relative with feedback head piece 217.The reinforcer 216 is for example connected by welding to the wall portion of stainless steel 21, and bears the high-speed impact of the liquid stream of the nozzle from feedback head piece 217.

Stainless steel 2 also carries charging aperture 214 and discharging opening 215.Charging aperture 214 is used to add raw material, such as not same liquid, or liquid and solid particle.In the multiple cyclic process of mixture liquid stream, charging aperture 214 is by the ball valve sealing that is located therein, so as to form the multiple circulation loop of closing between pressue device 1, feedback flow tube road 3, container chamber 211,212 and return line 4.Discharging opening 215 is fluidly connected to the pipeline 25 that discharges, for discharging mixture finished product or semi-finished product liquid stream after process finishing.Discharging pipeline 25 is provided with the switch valve 251 for being used for opening or closing pipeline.Stainless steel 2 can also carry pressure gauge 26, and the pressure in container chamber is monitored.

As shown in figure 1, the water jacket 23 that encirclement is formed to it is provided with outside stainless steel 21.Water jacket 23 is provided with water inlet 231 in relatively low opening position, and delivery port 232 is provided with relative higher opening position.Water jacket 23 is fluidly connected to circulating pump by water inlet 231 and delivery port 232, so as to form recirculated cooling water in water jacket 23.Thus, the operation temperature that mixture circulates again can be controlled, for example, the operation temperature can be controlled between 0 DEG C -100 DEG C, preferably between 10 DEG C -80 DEG C, more preferably between 30 DEG C -50 DEG C.Preferably, the operation temperature is set according to blending objects.

It is also provided with forming it heat-insulation layer 24 of encirclement outside water jacket 23, by water jacket 23 and external environment condition thermal isolation, it is possible thereby to realize more accurate temperature control.Meanwhile when operation temperature is less than environment temperature, the heat-insulation layer 24 avoids the dew condensation phenomenon on the surface of water jacket 23.And when operation temperature is higher, the heat-insulation layer 24 can prevent operator from being scalded by the surface of water jacket 23.

Operating process with reference to Fig. 1 descriptions according to the first embodiment of the liquid phase nano grinder of the present invention.

First, the switch valve 251 closed on discharging pipeline 25, and be as required added to a certain proportion of different liquids, or liquid in container chamber 211,212 via charging aperture 214 with solid particle.

Then, required according to blending objects and mixing, crushing, flow control valve 31 is adjusted to correct position.

Then, start drive device 5, mixture liquid stream is mixed and is crushed in stainless steel 2, and make its iterative cycles in the multiple circulation loop formed by stainless steel 2, return line 4, pressue device 1, feedback flow tube road 3.After so circulating predetermined amount of time, different liquids or the mixture of liquid and solid particle will be thoroughly mixed and be crushed to expected granularity, so as to form uniform homogeneous blend.It is empirically determined that the predetermined amount of time can be based on the factors such as feedstock property to be processed, expected granularity.As described above, the rotating speed of drive device 5 and run time can be controlled according to controller.

Finally, drive device 5 is closed, opens the switch valve 251 on discharging pipeline 25, makes to discharge via discharging pipeline 25 in the presence of overbottom pressure of the mixture liquid stream in stainless steel 2 after processing.

Fig. 3 shows the schematic diagram of the second embodiment of the liquid phase nano grinder according to the present invention, wherein omitting most of part in order to succinct.The difference of the second embodiment and Fig. 1 first embodiment is that longitudinal first end 221 of dividing plate 22 and the second end 222 of longitudinal direction are separated with the wall portion of container casing 21 to form opening 213 at two, so as to allow fluid from.Meanwhile two lateral ends 223,224 of dividing plate 22 are connected with the side wall of container casing 21 to prevent fluid from passing through（As shown in Figure 2）.Present the center of head piece 217 and refluxing opening 218 at or adjacent to dividing plate 22.

During the multiple circulation of mixture fluid, the high speed liquid flow from feedback head piece 217 is injected into the top wall of container casing 21, then hits and moves to the left and right along longitudinal direction, and returns to refluxing opening 218 via two openings 213 at the both ends of dividing plate 22.

Fig. 4 shows the schematic diagram of the 3rd embodiment of the liquid phase nano grinder according to the present invention, wherein omitting most of part in order to succinct.It is equally generally cylindrical according to the container casing 21 of 3rd embodiment.But the difference of the 3rd embodiment and first, second embodiment is, the longitudinal centre line C of the container casing 21 is general vertical.Correspondingly, dividing plate 22 is discoid, and its periphery and the side wall of container casing 21 separate, so as to limit the opening 213 of annular between the periphery of side wall and dividing plate 22 to allow fluid from.In addition, present the center of head piece 217 and refluxing opening 218 at or adjacent to discoid dividing plate 22.

During the multiple circulation of mixture fluid, the high speed liquid flow from feedback head piece 217 is injected into the top wall of container casing 21, hits and moves then to surrounding, and returns to refluxing opening 218 via the annular opening 213 at the periphery of dividing plate 22.

Although disclosing the present invention with the form of preferred embodiment, it will be appreciated that, many other modifications and variation can be carried out to it, without departing from the scope of the present invention.

Claims

1. a kind of liquid phase nano grinder, for being mixed and being crushed to mixture, the mixture is formed by different liquids or formed by liquid and solid particle, it is characterised in that the liquid phase nano grinder includes：

Stainless steel（2）, the mixture is in the stainless steel（2）In be mixed and crush；

Pressue device（1）, it is via feedback flow tube road（3）And return line（4）And with the stainless steel（2）It is in fluid communication and forms multiple circulation loop；And

Drive device（5）, it is used to drive the pressue device（1）,

Wherein, the pressue device（1）Pressure is applied to the mixture therethrough, so as to which mixture driving is arrived into the stainless steel（2）In, and make the mixture in the stainless steel（2）Middle formation high turbulence,

Wherein, the stainless steel（2）Container casing including limiting container chamber（21）And the dividing plate in the container chamber（22）, the dividing plate（22）The container chamber is divided into first chamber（211）And second chamber（212）, and the feedback flow tube road（3）With the first chamber（211）It is in fluid communication, the return line（4）With the second chamber（212）It is in fluid communication, and

Wherein, in the container casing（21）With the dividing plate（22）Between limit opening（213）, the first chamber（211）With the second chamber（212）Via the opening（213）It is in fluid communication.

2. liquid phase nano grinder according to claim 1, it is characterised in that the feedback flow tube road（3）Via feedback head piece（217）With the first chamber（211）It is in fluid communication, the return line（4）Via refluxing opening（218）With the second chamber（212）It is in fluid communication, wherein, the feedback head piece（217）With the refluxing opening（218）Away from the opening（213）.

3. liquid phase nano grinder according to claim 2, it is characterised in that the dividing plate（22）First end（221）It is connected to the container casing（21）The first wall portion to prevent fluid from passing through the dividing plate（22）The second end（222）With the container casing（21）The second wall portion separate to limit the opening（213）So as to allow fluid from, second wall portion is relative with first wall portion, and the second end（222）With the first end（221）Relatively, wherein, the feedback head piece（217）With the refluxing opening（218）The neighbouring first end（221）And away from the second end（222）.

4. liquid phase nano grinder according to claim 2, it is characterised in that the dividing plate（22）Relative a pair of end portions be connected to the container casing（21）Wall portion to prevent fluid from passing through the dividing plate（22）Relative another pair end and the container casing（21）The second wall portion separate to limit the opening（213）So as to allow fluid from, wherein, the feedback head piece（217）With the refluxing opening（218）The neighbouring dividing plate（22）Center.

5. liquid phase nano grinder according to claim 2, it is characterised in that the dividing plate（22）It is arranged so that the dividing plate in the container chamber（22）Periphery and the container casing（21）Wall portion separate, so as in the wall portion and the dividing plate（22）The periphery between limit the opening（213）To allow fluid from, wherein, the feedback head piece（217）With the refluxing opening（218）The neighbouring dividing plate（22）Center.

6. liquid phase nano grinder according to claim 1 or 2, it is characterised in that the pressue device（1）Including pressurised chamber（12）And positioned at the pressurised chamber（12）Interior impeller（11）, the impeller（11）By the drive device（5）Drive and rotate, so as in the axial direction to passing through the pressurised chamber（12）In the mixture apply pressure.

7. liquid phase nano grinder according to claim 6, it is characterised in that the return line（4）With the pressurised chamber（12）It is connected such that and comes from the stainless steel（2）In the mixture in the impeller（11）Enter the pressurised chamber in the tangential direction of rotation（12）.

8. liquid phase nano grinder according to any one of claim 1 to 5, it is characterised in that on the feedback flow tube road（3）It is provided with flow control valve（31）.

9. liquid phase nano grinder according to any one of claim 1 to 5, it is characterised in that the stainless steel（2）Provided with water jacket（23）.

10. liquid phase nano grinder according to any one of claim 1 to 5, it is characterised in that the stainless steel（21）With the feedback head piece（217）Relative wall portion is provided with reinforcer（216）.