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Whole tailings paste continuous agitating machine provided with liquid level regulation and control device

A control device and mixer technology, which is applied to mixers, mixer accessories, mixers and other directions with a rotating mixing device, can solve the problems of large liquid level fluctuations, hidden dangers in safety production, and error-prone, to strengthen the mixing and shearing effect. , Avoid overflow accident, strengthen the effect of shearing

Inactive Publication Date: 2018-12-14
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The continuous feeding and discharging of materials causes large fluctuations in the liquid level of the materials inside the mixer, and overflow accidents are prone to occur, which greatly pollutes the sanitary conditions of the factory building and also brings hidden dangers to safe production;
[0005] (2) When the liquid level of the material inside the mixer is too low, the material moves in one direction and cannot achieve effective shearing, the mixing effect is poor, and even the material flows directly between the blade and the bottom of the tank;
[0006] (3) Due to the fineness of the paste material, the connection between the shaft of the mixer and the motor must be sealed. When the paste is immersed in the shaft during the mixing process, the paste can easily enter the inside of the sealed bearing of the mixer, which may cause slurry leakage in the bearing, and serious Then damage the bearing and cause downtime accidents
The system design of this scheme is complicated, and the control operation is cumbersome and error-prone

Method used

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  • Whole tailings paste continuous agitating machine provided with liquid level regulation and control device
  • Whole tailings paste continuous agitating machine provided with liquid level regulation and control device
  • Whole tailings paste continuous agitating machine provided with liquid level regulation and control device

Examples

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Effect test

example 1

[0053] A mine adopts the filling process of deep cone thickener, double-shaft continuous mixer and plunger pump. The underflow concentration of the whole tailings after thickening is about 75%. The thickened tailings are sent to the mixer together with cement to prepare The mass fraction is about 77% paste, and finally pumped to the downhole stope through the plunger. In the embodiment of the present invention, the structure of the traditional mixer is modified, and the U-shaped feeding structure is modified by adding a liquid level control device, and the reverse operation of the two shafts is realized. After the material enters the mixing tank, the liquid level is raised under the action of the main board in the liquid level control device, and a high liquid level multi-cycle migration mode is formed under the dual-axis drive of the reverse movement. Under the premise of constant production capacity, the stirring time can be extended to About 3 minutes. The distance between...

example 2

[0056] A mine uses full tailings cemented filling technology, and adopts a filling process combining vertical sand bins, double-shaft continuous mixers and gravity conveying. After the tailings are thickened by the vertical sand silo, the underflow concentration is about 65%. The thickened tailings and cement are sent to the mixer to mix into a filling slurry with a mass fraction of about 68%, and finally flow to the underground stope by gravity. The mixer adopts the device and method provided by the present invention, and is equipped with a liquid level control device, a U-shaped feeding structure and a dual-axis reverse operation model. The distance between the mixer bearing, the feeding port and the overflow plate is 15cm, the height of the liquid level control device is 2cm higher than the top of the mixer blade, and the mixing blades are spiral and move inversely to each other. After the material enters the mixer, it forms a surrounding flow and multi-circulation movement...

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Abstract

The invention belongs to the technical field of whole tailings paste filling, and particularly relates to a whole tailings paste continuous agitating machine provided with a liquid level regulation and control device. The whole tailings paste continuous agitating machine comprises the liquid level regulation and control device and a U-shaped material discharging structure, wherein the height of the liquid level regulation and control device is less than that of an agitating tank and greater than that of an agitating machine blade; the paste in the agitating tank can only overflow from the upper part of the liquid level regulation and control device under the stop action of the liquid level regulation and control device, so as to control the liquid level of the paste in the agitating tank;the U-shaped material discharging structure is a space defined between a bearing and the liquid level regulation and control device; a material outlet is formed in the bottom of the U-shaped materialdischarging structure; the paste overflowing from the upper part of the liquid level regulation and control device enters the U-shaped material discharging structure and flows out through the materialoutlet. The agitating machine disclosed by the invention realizes accurate control on a transporting and moving mode of a material in an agitating process by combining the characteristics of the continuous agitating machine and designing the liquid level regulation and control device inside the agitating machine.

Description

technical field [0001] The invention belongs to the technical field of full tailings paste filling, and in particular relates to a full tailings paste continuous mixer with a liquid level control device. Background technique [0002] In the field of mine filling, the application of continuous paste mixer to prepare paste is a common paste filling process. The tailing mortar thickened by the deep cone thickener continuously enters continuous mixing, and is added by adding cement, coarse aggregate and Modifier, under the shearing action of the mixer, the material is fully dispersed to obtain a high-quality paste with good fluidity and high filling strength. [0003] Due to the working characteristics of the continuous mixer: continuous feeding and continuous discharging. At present, the filling process of paste preparation based on continuous mixer generally has the following problems: [0004] (1) The continuous feeding and discharging of materials causes large fluctuations...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F7/08B01F15/00B01F7/00
CPCB01F27/092B01F27/2322B01F27/721B01F35/1452B01F35/221
Inventor 王洪江杨柳华吴爱祥周旭王贻明
Owner UNIV OF SCI & TECH BEIJING
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