How to determine the amount of defoamer? - Jiangsu Saiouxinyue Defoamer Co., Ltd.

The determination of the amount of Defoamer usually needs to consider a number of factors, the following are some common methods and considerations:

Experimental test

Small scale experiment is an effective way to determine the Dosage of defoamer. In the laboratory or the small test device on the production line, the amount of defoamer is gradually increased, and the defoamer effect is observed until a satisfactory defoamer level is reached.

For example, in the small trial of paint production, start with a small amount of defoamer, increase a certain amount each time, record the situation and time of foam elimination to find the best dosage.

Characteristics of foam system

Consider the temperature of the system, pH, viscosity, surface tension, and the speed and stability of foam generation. In general, systems with higher temperatures, higher viscosity, or rapid and stable foam production may require more defoamer.

For example, in the chemical reaction at high temperature, due to the intensified molecular movement, the foam is more likely to be generated and stable, and relatively large amounts of defoamer may be required.

Production process and equipment

Process parameters such as stirring speed, ventilation, reaction time and the type and size of the equipment will also affect the amount of defoamer. Strong agitation or high ventilation may require increasing the amount of defoamer.

For example, in a large fermenter, due to the large ventilation and more foam generation, the amount of defoamer required may be more than that of a small fermenter.

Properties of defoamer

Different types and brands of defoamer have different defoamer efficiency and effective concentration ranges. Highly effective defoamers may require less dosage.

Some new Silicone defoamer, due to its unique molecular structure, may achieve good defoamer effect with less dosage than traditional defoamer under the same conditions.

Experience reference

Refer to the experience of using defoamer in similar production processes or application fields, but it still needs to be adjusted according to the actual situation.

If the same type of paper mill is known in the same production conditions of the defoamer dosage range, the new paper mill can make initial attempts and adjustments on this basis.

Generally speaking, the amount of defoamer is usually between 0.001%-5% of the total amount of the system, but the specific value needs to be determined by experiment and practical application. When determining the dosage, the principle of gradually adding from less to more should be followed to avoid the adverse effects of excessive dosage.

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How to determine the amount of defoamer?
2024-07-05 11:49:32

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How to determine the amount of defoamer? 2024-07-05 11:49:32

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How to determine the amount of defoamer?
2024-07-05 11:49:32