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The high rotational speed and shear rate of the 14,000 rpm disperser are the most important for obtaining ultrafine suspensions
.
According to the special requirements of some industries, the company developed the XRS2000 ultra-high-speed disperser on the basis of the XR2000 series
.
The shear rate can exceed 100.
00 rpm and the rotor speed can reach 40m/s
.
In this speed range, the turbulence caused by shear forces combined with specially developed motors enables particle size ranges down to nanometers
.
The stronger the shear force, the narrower the particle distribution
.
Due to the high energy density, no other auxiliary dispersion equipment is required
.
The factors that affect the results of dispersion and emulsification are as follows: 1.
The form of the emulsification head (batch type and continuous type) (continuous type is better than batch) 2.
The shear rate of the emulsification head (the bigger, the better the effect) 3 , The tooth structure of the emulsification head (divided into primary teeth, middle teeth, fine teeth, superfine teeth, the better the effect of fine teeth) 4.
The residence time of the material in the dispersing wall, the emulsification and dispersion time (can be regarded as equivalent Motor, the smaller the flow rate, the better the effect) 5.
The number of cycles (the more, the better the effect, the better the effect is when the equipment expires) Calculation of the linear velocity The definition of the shear rate is the relative liquid layer between the two surfaces rate
.
Shear rate (s-1) = v rate (m/s) g stator-rotor spacing (m) As can be seen from the above, the shear rate depends on the following factors: – the linear velocity of the rotor – in this case the two surfaces The distance between them is the rotor-stator spacing
.
CIK stator-rotor spacing range is 0.
2-0.
4 mm, speed V = 3.
14XD (rotor diameter) X speed RPM/60 14000 rpm The high speed and shear rate of the disperser are the most important for obtaining ultra-fine suspensions
.
According to the special requirements of some industries, the company developed the XRX2000 ultra-high-speed shearing emulsifying machine on the basis of the XRS2000 series
.
Its shear rate can exceed 200.
00 rpm, and the rotor speed can reach 66m/s
.
In this speed range, the turbulence caused by shear forces combined with specially developed motors enables particle size ranges down to nanometers
.
The shear force is stronger, and the particle distribution of the emulsion is narrower
.
Due to the high energy density, no other auxiliary dispersing equipment is required, and the particle size under 400BAR pressure of the ordinary high-pressure homogenizer can be achieved.
) into another immiscible continuous phase (usually liquid) process equipment
.
When the fineness of one or more of the materials is on the order of micrometers, or even nanometers, the system can be considered homogeneous
.
When external energy is input, the two materials recombine into a homogeneous phase
.
Due to the high tangential speed generated by the high-speed rotation of the rotor and the strong kinetic energy brought by the high-frequency mechanical effect, the high-shear homogenizer causes the material to be subjected to strong mechanical and hydraulic shearing and centrifugal extrusion in the narrow gap between the stator and the rotor.
, liquid layer friction, impact tearing and turbulence and other combined effects to form suspension (solid/liquid), emulsion (liquid/liquid) and foam (gas/liquid)
.
The high-shear homogenizer makes the immiscible solid phase, liquid phase, and gas phase, under the combined action of the corresponding cooking process and appropriate amount of additives, disperse and emulsification evenly and finely in an instant, and the high-frequency pipeline type high-shear dispersion homogeneous emulsification The cycle of the machine goes back and forth, and finally a stable high-quality product is obtained
.
Comparison between XRS2000 series products and traditional equipment ⑴ Traditional equipment requires 8 hours of dispersion process, XRS2000 equipment can be completed in 1 hour, which is more efficient and energy-saving
.
(2) The stirring speed of the traditional equipment is dozens of revolutions per minute, and the revolution per minute with the dispersion function is also within 1500 revolutions per minute, while the XRS2000 series can reach 5000-6000 revolutions per minute, which is faster
.
The shear force generated by the ultra-high line speed makes the material instantly fine and disperse, so as to obtain higher quality products
.
Comparison between XRS2000 series and similar equipment ① Heat problem
.
During the processing of similar equipment, after the high-viscosity material enters the cavity, the conveying effect is poor due to the large back pressure, resulting in the material staying in the equipment cavity for too long and causing serious heat generation
.
On the basis of ensuring the effect, the RCS2000 series equipment reduces the back pressure resistance, improves the conveying capacity, reduces the residence time, and reduces the heating of the material
.
② Multi-layer multi-directional shear dispersion
.
The stator, rotor and other components of similar equipment have a single structure, and the multi-level and multi-layer structure is only simple repetitive processing.
The same cogging structure is prone to short-circuit phenomenon that materials pass through the working cavity without being dispersed
.
The structure of XRS2000 series stator and rotor adopts the concept of multi-layer multi-directional shearing.
The assembled structure enables the material to be sheared and dispersed in different directions, eliminating short-circuit phenomenon and making ultra-fine dispersion more thorough
.
.
According to the special requirements of some industries, the company developed the XRS2000 ultra-high-speed disperser on the basis of the XR2000 series
.
The shear rate can exceed 100.
00 rpm and the rotor speed can reach 40m/s
.
In this speed range, the turbulence caused by shear forces combined with specially developed motors enables particle size ranges down to nanometers
.
The stronger the shear force, the narrower the particle distribution
.
Due to the high energy density, no other auxiliary dispersion equipment is required
.
The factors that affect the results of dispersion and emulsification are as follows: 1.
The form of the emulsification head (batch type and continuous type) (continuous type is better than batch) 2.
The shear rate of the emulsification head (the bigger, the better the effect) 3 , The tooth structure of the emulsification head (divided into primary teeth, middle teeth, fine teeth, superfine teeth, the better the effect of fine teeth) 4.
The residence time of the material in the dispersing wall, the emulsification and dispersion time (can be regarded as equivalent Motor, the smaller the flow rate, the better the effect) 5.
The number of cycles (the more, the better the effect, the better the effect is when the equipment expires) Calculation of the linear velocity The definition of the shear rate is the relative liquid layer between the two surfaces rate
.
Shear rate (s-1) = v rate (m/s) g stator-rotor spacing (m) As can be seen from the above, the shear rate depends on the following factors: – the linear velocity of the rotor – in this case the two surfaces The distance between them is the rotor-stator spacing
.
CIK stator-rotor spacing range is 0.
2-0.
4 mm, speed V = 3.
14XD (rotor diameter) X speed RPM/60 14000 rpm The high speed and shear rate of the disperser are the most important for obtaining ultra-fine suspensions
.
According to the special requirements of some industries, the company developed the XRX2000 ultra-high-speed shearing emulsifying machine on the basis of the XRS2000 series
.
Its shear rate can exceed 200.
00 rpm, and the rotor speed can reach 66m/s
.
In this speed range, the turbulence caused by shear forces combined with specially developed motors enables particle size ranges down to nanometers
.
The shear force is stronger, and the particle distribution of the emulsion is narrower
.
Due to the high energy density, no other auxiliary dispersing equipment is required, and the particle size under 400BAR pressure of the ordinary high-pressure homogenizer can be achieved.
) into another immiscible continuous phase (usually liquid) process equipment
.
When the fineness of one or more of the materials is on the order of micrometers, or even nanometers, the system can be considered homogeneous
.
When external energy is input, the two materials recombine into a homogeneous phase
.
Due to the high tangential speed generated by the high-speed rotation of the rotor and the strong kinetic energy brought by the high-frequency mechanical effect, the high-shear homogenizer causes the material to be subjected to strong mechanical and hydraulic shearing and centrifugal extrusion in the narrow gap between the stator and the rotor.
, liquid layer friction, impact tearing and turbulence and other combined effects to form suspension (solid/liquid), emulsion (liquid/liquid) and foam (gas/liquid)
.
The high-shear homogenizer makes the immiscible solid phase, liquid phase, and gas phase, under the combined action of the corresponding cooking process and appropriate amount of additives, disperse and emulsification evenly and finely in an instant, and the high-frequency pipeline type high-shear dispersion homogeneous emulsification The cycle of the machine goes back and forth, and finally a stable high-quality product is obtained
.
Comparison between XRS2000 series products and traditional equipment ⑴ Traditional equipment requires 8 hours of dispersion process, XRS2000 equipment can be completed in 1 hour, which is more efficient and energy-saving
.
(2) The stirring speed of the traditional equipment is dozens of revolutions per minute, and the revolution per minute with the dispersion function is also within 1500 revolutions per minute, while the XRS2000 series can reach 5000-6000 revolutions per minute, which is faster
.
The shear force generated by the ultra-high line speed makes the material instantly fine and disperse, so as to obtain higher quality products
.
Comparison between XRS2000 series and similar equipment ① Heat problem
.
During the processing of similar equipment, after the high-viscosity material enters the cavity, the conveying effect is poor due to the large back pressure, resulting in the material staying in the equipment cavity for too long and causing serious heat generation
.
On the basis of ensuring the effect, the RCS2000 series equipment reduces the back pressure resistance, improves the conveying capacity, reduces the residence time, and reduces the heating of the material
.
② Multi-layer multi-directional shear dispersion
.
The stator, rotor and other components of similar equipment have a single structure, and the multi-level and multi-layer structure is only simple repetitive processing.
The same cogging structure is prone to short-circuit phenomenon that materials pass through the working cavity without being dispersed
.
The structure of XRS2000 series stator and rotor adopts the concept of multi-layer multi-directional shearing.
The assembled structure enables the material to be sheared and dispersed in different directions, eliminating short-circuit phenomenon and making ultra-fine dispersion more thorough
.
