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Nozzle used for ore flotation equipment

A mineral flotation and nozzle technology, applied in flotation, solid separation, etc., can solve problems affecting the operation rate of flotation equipment, poor wear resistance of nozzles, and short service life, so as to reduce maintenance labor workload and improve Operational efficiency and the effect of improving beneficiation indicators

Active Publication Date: 2016-12-21
洛阳豫鹭矿业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the nozzles of flotation equipment have poor wear resistance, short service life, and high replacement frequency, which affects the operation rate of flotation equipment.

Method used

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  • Nozzle used for ore flotation equipment
  • Nozzle used for ore flotation equipment
  • Nozzle used for ore flotation equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Please refer to figure 1 , figure 2 and image 3 The material of the tungsten alloy used for the nozzle 20 of the mineral flotation device in the first embodiment includes tungsten carbide and nickel, and the mass percentage of the tungsten carbide is 80.0%-85.0%, and the mass percentage of the nickel is 11.0%-13.0%. The hardness of the tungsten alloy material is HRA 89.0-91.0. Adding nickel in the tungsten carbide alloy can improve the toughness and thermal fatigue resistance of the tungsten carbide alloy nozzle 20 , and can also improve the corrosion resistance and oxidation resistance of the tungsten carbide alloy nozzle 20 . Through experimental comparison, it is found that when the mass percentage of nickel in the tungsten carbide alloy is 11.0%-13.0%, the service life of the tungsten alloy nozzle 20 used in the mineral flotation equipment is the best, and the average service life can reach 2-3 years.

[0026] The tungsten alloy material used for the nozzle 20 ...

Embodiment 2

[0042] Such as Figure 4 As shown, the injector nozzle 30 of the jet flotation machine (not shown in the figure) is cylindrical, and the injection hole of the tungsten alloy nozzle 30 is conical, and the aperture d32 at the widest part of the injection hole is 40-42mm, and the aperture d33 at the narrowest The diameter of the tungsten alloy nozzle 30 is 29-31mm. After the action of the ore slurry and the flotation agent, it is sprayed out from the narrowest part of the injection hole. The structure of the tungsten alloy nozzle 30 can effectively increase the injection pressure of the nozzle 30 and increase the injection range, thereby improving the separation between the ore slurry and the air bubbles. touch. The flotation agent has a certain corrosion effect, and the tungsten alloy material nozzle 30 of the present invention is wear-resistant and corrosion-resistant, and the average service life of the nozzle is significantly improved.

[0043] The average service life test ...

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Abstract

The invention discloses a nozzle used for ore flotation equipment. The nozzle is characterized in that the nozzle is made of a tungsten alloy material, and the tungsten alloy material comprises, by mass, 80.0%-85.0% of tungsten carbide and 11.0%-13.0% of nickel. According to the tungsten alloy nozzle used for the ore flotation equipment, the abrasion resistance is superior to that of a nozzle made of ceramics or manganese steel alloy or tungsten carbide. The average service life of the tungsten alloy nozzle can reach two to three years, and operation efficiency of the flotation equipment is greatly improved; and the workloads of maintenance labor are lowered, cost is reduced, and the indicators in beneficiation are increased.

Description

technical field [0001] The invention relates to a nozzle for mineral flotation equipment, in particular to a tungsten alloy nozzle for mineral flotation equipment. Background technique [0002] The air gun nozzle of the existing flotation column is made of zirconia ceramics. Under the friction of the air flow, the diameter of the air gun nozzle gradually increases due to wear, so that the air supply volume changes, resulting in unstable air volume and affecting the generation of air bubbles in the flotation column. , the beneficiation index is reduced, and the average service life of the general zirconia ceramic nozzle is only 4-6 months. How to improve the wear resistance of the air gun nozzle of the flotation column and increase the service life of the nozzle is an urgent problem to be solved. [0003] The ejector of the existing jet flotation machine mainly uses the pump to send the ore slurry that has been reacted with the flotation agent into the ejector, and generates ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03D1/24C22C29/08
CPCB03D1/02B03D1/242C22C29/08
Inventor 郭建根姚红卫黄江涛
Owner 洛阳豫鹭矿业有限责任公司
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