Apparatus for rapidly increasing sediment concentration of sand silo/thickener and improving fluidization property

A technology of thickener and sand bin, which is applied to the feeding/discharging device of the settling tank, sedimentation and separation, chemical instruments and methods, etc., to achieve the effects of increasing sand settling speed, reducing power consumption, and convenient installation

Inactive Publication Date: 2015-10-07
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

There is no such application in the field of mine tailing sand release

Method used

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  • Apparatus for rapidly increasing sediment concentration of sand silo/thickener and improving fluidization property

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Embodiment Construction

[0037] In the sand setting process, the ultrasonic generator in the settlement area is turned on to generate 20KHZ ultrasonic waves, which are converted into mechanical vibration through the transducer, and the mechanical vibration acts on the mortar to increase the sand setting speed; ensure proper "sand raising" time and ensure sand settling concentration (take a gold mine as an example, ensure that the concentration of sand settling is about 70%).

[0038] In the sand release process, the ultrasonic generator in the settlement area is turned on to generate 20KHZ ultrasonic waves, which are converted into mechanical vibration through the transducer to improve the fluidization of the mortar, increase the sand release rate, and ensure long-term stable sand discharge of the mortar (a gold mine is used as an example) For example, after slurry making, it is necessary to ensure that the sand concentration in the sand bin is continuously stable at about 68% for a long time).

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Abstract

The invention relates to an apparatus for rapidly increasing sediment concentration of a mine vertical sand silo / deep-cone thickener and improving the fluidization property. The fluidization property of mortar discharged from the silo can be improved in a sound-field vibration way, and the concentration of the discharged tailing sand can be increased. The apparatus utilizes vibration ultrasonic to act on a sedimentation area and a compression area of mortar in a vertical sand silo / deep-cone thickener. The apparatus comprises a sedimentation area sound wave system and a compression area sound wave system, wherein the sedimentation area sound wave system is used for vibrating the sand and guaranteeing the sediment speed, and the compression area sound wave system is used for improving the fluidization property of the mortar. The apparatus is simple in process flow, convenient to install and capable of maintaining the flow state of mortar inside the sand silo stable. The target pressing phenomenon of the deep-cone thickener caused by the unfavorable control can be eliminated by utilizing the vibration ultrasonic wave of a sound field.

Description

technical field [0001] The invention relates to a device for quickly increasing the sand concentration of a mine vertical sand bin / deep cone thickener and enhancing its fluidization performance. The fluidization of the mortar discharged from the bin is enhanced by means of sound field vibration, and the concentration of the tailings discharged from the bin is increased. Background technique [0002] In filling mining, the application range of paste filling and high concentration filling is more and more extensive. Two types of mortar thickening facilities, represented by vertical sand bins and deep cone thickeners, are important guarantees for efficient mine filling and improvement of filling quality. [0003] Since the tailings are deposited as saturated sand in the vertical sand bin, if it can flow out from the sand discharge pipe, it must first be made into a slurry to make it fluidized. The vertical sand bins of most mines generally use high-pressure water to liquefy . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D21/28B01D21/24
Inventor 吕文生杨鹏谷瑞江牟宏伟王志凯宋世文
Owner UNIV OF SCI & TECH BEIJING
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