High Shear Dispersing Emulsifier

Description

Product Description

Driven by a compact series-excited micro high-speed motor, a high shear dispersing emulsifier is suitable for stirring and mixing of low, medium and high viscosity liquid in laboratory or pilot plant, as well as shear emulsification of crushed granular material in the liquid. The emulsifier consists of a high speed motor, a shear emulsifying work head, a speed controller and other components. The driving machine, made of high quality engineering plastics and die-cast aluminum alloy, can run steadily. The work head, finely made of high quality stainless steel, has a wide range of applications. The stepless regulation of speed can modify the run speed at any time in experiment. The “H” type digital display of rotating speed is intuitive, convenient to collect experimental data. The timing control ensures that the experiment time is effectively controllable.

Product Principle

The device utilizes a high speed motor to drive the work head, and adopts precise claw type rotors and stators. The high-speed rotation of the rotors generates high frequency and intense circumferential tangent velocity, angular velocity and other comprehensive kinetic energy, which impel the experimental material into the rotor area from the bottom of the experimental vessel and throw out the material from the stator holes under the action of huge centrifugal force. The stators and rotors can develop intense and reciprocating hydraulic shearing, friction, centrifugal extrusion, stream collision and other comprehensive effects in a reasonably narrow gap. The dispensing homogeneous effect can be achieved when the experimental material repeats the above working process constantly and bears tens of thousands of shearing, tearing, impacting and mixing per minute. It is about one thousand times higher that the efficiency of ordinary stirring.

The device is suitable for tissue dispersing in the biotechnology field, sample preparation in the medicine field, enzyme treatment in the food industry, and it plays an important role in the pharmaceutical, cosmetics, paint, petrochemical and other industries. Furthermore, it can be used for liquid material experiments, including liquid and liquid phase, liquid and solid phase, liquid with viscosity less than 0.2Pa. S and liquid with temperature less than 80℃. It can refine the experimental medium and make them mix with each other evenly under the triple action of extrusion, strong impact and pressure loss expansion in the liquid, preventing or reducing the stratification with the liquid. (such as the homogenate of dairy products, beverages, cosmetics, pharmaceuticals and other products, the soft fragmentation of tissue cells.)

Various specifications of well-matched work heads, designed to meet different experimental requirements, have a wider applicable scopes, such as crushing, emulsification, homogenization, polymerization, suspension, dissolution and stirring, etc.

Equipment Assembly

1. Place the engine base (6) on the platform. Connect two upright posts (7) into a whole with threads, and fix them into the mounting screw holes of the engine base. Set the support bracket (8) on the upright posts and turn the handle of the support bracket to be fixed.
2. Take a shorter support (9) and fix it into the mounting screw hole on the back of the homogeneous host. Then install the support into the support bracket and turn the handle of the support bracket to fix it. The homogeneous host can be adjusted front and back, up and down on the support bracket according to the experimental needs.
3. The installation of work head can refer to 1-4 disassembly and assembly steps of work head in “Use and Maintenance”.

Note: Please firmly fix the critical connection points and frequently check them to prevent loosening in order to ensure the safe operation of the device.

Please read the “Use and Maintenance” carefully before debugging the device. The machine must be installed on the support, not hand-held operation.

The derive type of the device is the series-excited motor, featuring rated torque at rated speed. The speed is proportional to the torque. If the device is required to operate at low speed, adjust the speed as required after starting the device.

Product Parameters

Precautions

1. The device should be placed in a clean and dry place. The ambient temperature shouldn’t exceed 40℃. Strictly prevent foreign matters from splashing into the motor.
2. Please use a leakage protection device to ensure the personal safety of the operator when the device is used in a relatively humid environment.
3. Please use a stabilized power supply deviceto avoid the rotating speed out of control when the device is used in the power grid with severe voltage fluctuation.
4. Please take necessary protection measures to prevent the mechanical and electrical performance of the device from damage when the device is used in the highly corrosive environment.
5. Pleasure take effective measures to strictly prevent the emission of flammable gases when the volatile, flammable and other dangerous mediums are used in experiment. It should be avoided that flammable and explosive gases explode in electric spark resulting in fire accidents.
6. It is prevented to use the device in the flammable and explosive environment.
7. The power socket for the device must be well grounded. Don’t connect the grounding wire to telephone wires, metal pipes, gas pipes and lightning rods.
8. Don’t start the work head before putting it into the experimental liquid. The bottom of the work head (feed port) should keep sufficient distance from the experimental medium vessel.

Use and Maintenance

1-1 The device adopts single-phase three-wire system. The required power socket is three-hole socket of 220V and 10A.

1-2 The work head is forbidden to operate without the liquid medium, preventing the mechanical parts from damage when the device operates at high speed but without the protection of liquid medium. It can lead to mechanical failure.

1-3 Input power of the device: It has entered the working state when the speed monitor shows numbers and the “P type”dynamic indicator works after turning on the power switch.

1-4 Disassembly and assembly steps of work head:

1-4-1 When installing, please put the feed port of the work head downward, hold the middle part with your hand, insert it upward into the mounting hole of the connector (4), and turn the handle to fix it.

1-4-2 When disassembling, please hold the middle part of the work head with your head, turn the fixing handle of the connector to loosen it and dismount it from the mounting hole. Don’t use too much force, otherwise the work head will hit the base plate causing deformation and damage of the feed port.

1-5 Input power of the device: It has entered the working state when the speed monitor shows numbers and the “P type”dynamic indicator works after turning on the power switch.

1-6 Setting of run speed: Rotate the speed control knob to enter the speed preset state, and the stirring speed required for experimental operation can be set, or the speed can be dynamically adjusted during operation.

1-7 Start control: Press the speed control knob to start the operation. H type: Before presetting the speed, the run speed is the initial default speed.

1-8 Pause and restart: Pressing the speed control knob during operation, the operation stops. Pressing the speed control knob again, the device starts running according to the run speed before suspension (speed memory function).

1-9 Timing operation control (H type): Pressing the speed control knob for three seconds, it enters the state of timing setting when the digital display shows “SET”. Rotate the speed control knob to set the time required by experiments. Press the speed control knob again to exit the timing setting and enter the speed setting. Similarly, rotate the speed control knob to set the speed required by experiments. Pressing the speed control knob, the device start running in the state of timing control. At this time the speed display alternately displays the running speed ad the timing control countdown.

1-10 State control: When the device is restarted after power interruption or unexpected shutdown of power switch, it will enter the initial state of default to ensure the safety of the experimental operation.

1-11 Running fault: When the operation can’t be executed according to instructions, the “H type”digital display shows “ERR”, indicating it is in the state of fault alarm.

1-12 After the operation, turn off the power switch and pull out the plug. Clean each part of the shear emulsifying work head in time for the next use.

1-13 If the device is used for a long time or out of use after a period of time, maintenance inspection should be carried out before use, especially in the aspect of electrical safety performance. A megger can be used to detect the insulation resistance.

1-14 The brush on the motor is a vulnerable part so users should check it frequently. During inspection, please cut off the power, pull out the plug and unscrew the brush cover (10) to take out the brush. It should be replaced in time if the brush is shorter than 6mm. The new brush should conform to the original specification, move freely in the brush tube, and prevent itself from getting stuck in the tube, causing large electric spark or non-operation of the motor.

1-15 If the motor doesn’t operate in use, check whether the power socket works, whether the connector is loose, and whether the brush is in good contact. If it still can’t operate normally after troubleshooting above, please contact the after-sales service department directly. Don’t ask the personnel unfamiliar with the device to disassemble, so as to avoid accidents.

Before using the device, please drive the main engine for testing. Don’t install the work head in the testing.

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