| 摘要 |
The foam generator is applied in solid mineral resources drilling with gas-liquid systems, and is included it in the pressurized delivery line of the circulation system. It helps to increase the injection effect and the control of the quality of the resulting foam. The foam generator consists of a feeding tube with a nozzle, fixed in a body, connected to a diffuser, consisting of a cylindrical body, the front part of which is shaped as a mixing chamber. The mixing chamber is connected to a cylindrical cavity in which are successively arranged diffusing nozzles, fixed with setting rings, changing in diameter, chambers formed between them, each connected to a separate air-feeding end piece.
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