Front spiral guiding device for horizontal spiral centrifuge cavitation resisting

A decanter centrifuge and spiral diversion technology, applied in the field of centrifuges, can solve problems such as weak anti-cavitation ability, and achieve the effects of improving anti-cavitation, improving fluency, and increasing material pressure energy.

Pending Publication Date: 2019-03-22
ZHEJIANG UNIV OF TECH
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  • Claims
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Problems solved by technology

[0005] In order to solve the problem that the anti-cavitation ability of the decanter centrifuge in the prior art is weak when separating materials w

Method used

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  • Front spiral guiding device for horizontal spiral centrifuge cavitation resisting
  • Front spiral guiding device for horizontal spiral centrifuge cavitation resisting
  • Front spiral guiding device for horizontal spiral centrifuge cavitation resisting

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Embodiment Construction

[0030] The technical solution of the patent of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear ” and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or...

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Abstract

The invention relates to a front spiral guiding device for horizontal spiral centrifuge cavitation resisting. The front spiral guiding device is arranged in a material distribution chamber, the guiding device comprises a front spiral shaft, the right end of the front spiral shaft is fixed to the left end of a spiral conveyor shaft in a coaxial mode, and the left end of the front spiral shaft is located in the material distribution chamber and faces the outlet end of a feeding pipe; a gap between the front spiral guiding device and the inner wall of the material distribution chamber forms a flow channel, and the flow channel communicates an inner cavity of a rotating drum through a discharging outlet; and a first front spiral blade and a second front spiral blade are spirally arranged on the periphery of the front spiral shaft in the direction of a central axis of the front spiral shaft in an overlapping mode, the spiral direction of the first front spiral blade and the second front spiral blade is opposite to the spiral direction of blades of a spiral conveyor.

Description

technical field [0001] The invention belongs to the field of centrifuges, and in particular relates to a pre-screw guide device for anti-cavitation of a decanter centrifuge. Background technique [0002] Cavitation phenomenon is a common problem in all kinds of fluid machinery. When the liquid flows to the low-pressure area, the local pressure is lower than the vaporization pressure of the liquid, and part of the liquid will vaporize, and the generated bubbles will follow the liquid from the low-pressure area to the high-pressure area. And in the high-pressure area, the bubbles will shrink and condense sharply, and the liquid around them rushes to the space occupied by the original bubbles at a very high speed, generating high-intensity shock waves that impact the blades, resulting in noise and even vibration. [0003] The decanter centrifuge is often accompanied by cavitation when separating materials with high gas content and low vaporization pressure. When the material to...

Claims

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Application Information

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IPC IPC(8): B04B1/20B04B7/02B04B11/02
CPCB04B1/20B04B7/02B04B11/02B04B2001/2041
Inventor 周水清周华欣李曰兵金伟娅高增梁周凌峰
Owner ZHEJIANG UNIV OF TECH
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