The foaming machine is a foaming device capable of making a certain concentration of the foaming agent into a foaming device. The foaming agent itself cannot automatically become a foam, and it must pass the mechanical action of the foaming machine to become a foam. The foaming machine and the foaming agent are a technical system that cooperate with each other and cannot function alone.
The foaming machine itself cannot produce foam from the air. It is to uniformly disperse air into the aqueous foaming agent solution to achieve the largest possible contact surface of the liquid gas, so that the surface active material in the foaming agent is on the surface of the liquid film. An electric double layer is formed and surrounds the air to form a bubble.
The main body of foam concrete is foam, so the foaming machine for foaming becomes the key equipment and main machine for foam concrete production. Without it, there would be no foam concrete.
The foaming machine first appeared in foreign countries, and its original model was made by high-speed rotation of the impeller, so it was also called "bubble machine". Later, with the continuous advancement of technology, the technical content of the foaming machine continued to increase, and new models continued to emerge, forming different technical systems. China began to use foaming machines as early as the 1950s, but it was not a special foaming machine, but a mortar mixer. The blowing agent is directly added to the mortar mixer or concrete mixer, and the foaming agent is stirred together with the mortar or concrete to form a foam. Around the 1970s, special foaming agents began to appear, namely high-speed impeller foaming machines. In the future, technology upgrades and replacements have been carried out. Nowadays, it has developed into a third-generation model with high-pressure inflation as the main body, which can basically meet the needs of foam concrete.
There are many brands and models of foaming machines, but they are divided into three categories: high-speed impeller type, high-pressure air type, and blast-in-low-pressure type. The difference between the same type is only the difference between the auxiliary equipment and the automation control, and the structure of the foaming part is substantially the same.
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Label: The principle of foaming machine
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