1. The correct way to use defoaming agents
Defoaming agents are common industrial chemicals used to eliminate foam generated in industrial production, so defoaming agents How to use it correctly?
1. According to the needs of industrial production, select a suitable defoaming agent and adjust the usage amount according to different foaming systems. The recommended usage range is 0.4‰-5‰.
2. When using, dilute it with water or working fluid and stir well before adding it or add it directly to the place where defoaming is required.
2. What are the methods of adding defoaming agent
It is not difficult to use defoaming agent. It is usually added after dilution or directly. There are three specific adding methods:
1. Continuous adding
(1) Remove a certain amount of foaming agent and 5-10 times of water at the same time Add to the defoaming agent mixing tank.
(2) Stir gently at room temperature to evenly disperse in water to obtain a diluted solution.
(3) Add the diluent continuously or dropwise into the foaming system to control foam.
Note: Defoaming agents can be added directly to systems that do not allow dilution without affecting their defoaming and foam suppression effects.
2. Intermittent addition
(1) Remove a certain amount of foaming agent and 5 -10 times of water is added to the defoaming agent preparation tank at the same time.
(2) Stir gently at room temperature to evenly disperse in water to obtain a diluted solution.
(3) When foam occurs in the system, add an appropriate amount of diluent into the system at one time to control the foam. When foam occurs again, add an appropriate amount of diluent into the system at one time to control the foam.
3. One-time addition
For a closed system (or defoaming agent is used as an additive), a one-time addition of defoaming agent is required to control foam. Take an appropriate amount of defoamer and add it to your system at a time to control foam. Instructions for adding amount: The reference dosage of defoaming agent is generally 20-100ppm. The appropriate dosage must be determined by testing foam samples.
3. What are the precautions for using defoaming agents
When defoaming agents are used in industrial production, attention should be paid to the following aspects:
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1. Usage amount of defoaming agentIt should be an appropriate amount, and the optimal amount should be found. Generally, the lowest amount is better.
2. Even if the defoaming agent is not separated into layers, it is best to stir it evenly before use. If layered before use, it must be stirred evenly.
3. In some production areas, defoaming agents do not need to be diluted before use and can be used directly. For emulsion defoamer, if you want to dilute it, it is best to dilute it with an aqueous solution (1~2%) containing thickener. Otherwise, stratification will occur, which will affect the defoaming effect.
4. Different defoaming agents should be used in different environments, because the temperature, pH, and foaming substances in each environmental system are different.
5. When using industrial defoamer, be careful to wear a mask and gloves to avoid the defoamer getting on your skin.
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