Laboratory homogenizer use and precautions

The laboratory homogenizer is a device used to homogenize and emulsify liquid materials (liquid-liquid or liquid-solid) with viscosities below 0.2 Pa.s and temperatures below 80°C. It is mainly used in the field of decentralization in the field of biotechnology, sample preparation in the medical field, enzyme treatment in the food industry, pesticide residues in foods, and detection of veterinary drug residues, as well as in the pharmaceutical, cosmetic, paint, and petrochemical industries.

The homogenizer of the laboratory uses a stainless steel system, which can effectively separate the surface of the body sample and the contained homogeneous microbiological sample. The sample is packed in a disposable sterile homogenized bag and is not in contact with the instrument. It is fast and accurate. Good repeatability requirements.


Laboratory homogenizer operation specification:
1, start: open the homogenizer cooling water is normal, turn on the power switch is normal. Unscrew the handle of the secondary valve and the handle of the primary valve, and inject 2/3 hot water (water temperature 75-85°C) into the hopper. Then start the electric car, so that the normal outflow of the material pipe water, with the hopper in the hot water circulation, so that the homogenizer preheated to the desired temperature after the material.
2. Homogenizer pressurization: The secondary valve is boosted first. When there is no abnormal noise in the machine, the hot water is drained and the material is added immediately. Note that when adding materials, ensure that the homogenizer continuously feeds and discharges the material, avoiding mixing with air. After the mixture of material and water is discharged, material circulation of the material tube and hopper is performed, and the secondary valve handle is tightened gradually. At this time, the pressure gauge displays the corresponding pressure value, and then the secondary valve handle is gradually tightened until the pressure gauge shows The required pressure value. Note that the upper limit of its rated pressure must not be exceeded. The primary valve is boosting. Gradually tighten the primary valve handle pressure gauge to display the pre-pressure.
3. Discharging: After the above operation procedure is completed, the material pipe is connected to the material container.
4. Pressure relief: When the homogenizer load is completed, all working valve stems must be loosened. First loose the primary valve stem and then loosen the secondary valve handle so that the pressure gauge shows zero.
5. Cleaning: Apply clean water (using hot water, water temperature 65-75°C) after the homogenizer finishes work, clean the pump body, work the material of the valve body, and clean the water.
6. Shutdown: Cut off the power and turn off the homogenizer cooling water.


Laboratory Homogenizer Usage Notice:
1. Before starting, it is necessary to thoroughly inspect whether the joints of the solid pieces and pipes are solid and reliable.
2. Inject clean mechanical oil into the power box to the oil level line.
3, check the pulley steering, reverse rotation is prohibited during work.
4, turn on the plunger cooling water, to the water into a thin line can be.
5. It is forbidden to start under pressure.
6. After starting up, it should be gradually adjusted to the required pressure so as to avoid shocks caused by sudden changes in pressure.
7. After start-up, if the pressure gauge jumps violently or the pressure does not increase, reset the pressure gauge to zero and loosen the open-air device screw until no air bubbles escape, and tighten the screws.
8. When working under load, the working pressure must not exceed the rated pressure.
9. Loosen the pressure regulator handle of the homogenizer before parking to remove the pressure. Wait until the standby machine stops and then close the valve on the feed pipe.
10. Regularly check the engine oil. The new machine should be changed for 100 hours and then replaced every 1000 hours.