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A kind of scale inhibitor for phosphate rock reverse flotation tailings conveying pipeline and its preparation method and application

A conveying pipeline and reverse flotation technology, applied in descaling and water softening, chemical instruments and methods, mining wastewater treatment, etc. Achieve the effect of shortening cleaning time, improving operation rate and simple preparation

Active Publication Date: 2018-07-27
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of cleaning and descaling not only takes a lot of time, but also requires a lot of manpower and material resources, which seriously affects the operation efficiency and energy consumption of the mineral processing plant, especially for mineral processing plants with long tailings conveying pipelines.
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Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] After uniformly mixing 60% fatty acid methyl ester ethoxylate sulfonate and 40% sodium polyacrylate in a stirring tank, the antiscalant for phosphate rock reverse flotation tailings transmission pipeline is prepared. Add water to the phosphate rock reverse flotation tailings delivery pipeline scale inhibitor at 40°C to prepare a solution with a mass concentration of 1‰, and add it to the tailings delivery pipeline. The scale inhibitor of the phosphate rock reverse flotation tailings delivery pipeline is The amount added is 5PPM of tailings mass. After adopting the antiscalant agent in the phosphate ore reverse flotation tailings transportation pipeline of this embodiment, the operation period of the tailings transportation pipeline system has been extended from 180 days to 980 days now, and the cleaning period of the tailings transportation pipeline has been extended without changing the transportation capacity.

Embodiment 2

[0013] After uniformly mixing 80% fatty acid methyl ester ethoxylate sulfonate and 20% sodium polyacrylate in a stirring tank, the antiscalant for phosphate rock reverse flotation tailings transmission pipeline is prepared. Add water to the phosphate rock reverse flotation tailings delivery pipeline scale inhibitor at 50°C to prepare a solution with a mass concentration of 1‰, and add it to the tailings delivery pipeline. The scale inhibitor of the phosphate rock reverse flotation tailings delivery pipeline is The amount added is 10PPM of tailings mass. After adopting the antiscalant of the phosphate rock reverse flotation tailings conveying pipeline of this embodiment, the operation period of the tailings conveying pipeline system is extended from 180 days to the current 1180 days, and the cleaning period of the tailings conveying pipeline is extended without changing the conveying capacity.

Embodiment 3

[0015] After uniformly mixing 70% fatty acid methyl ester ethoxylate sulfonate and 30% sodium polyacrylate in a stirring tank, the antiscalant for phosphate rock reverse flotation tailings transmission pipeline is prepared. Add water to the phosphate rock reverse flotation tailings delivery pipeline scale inhibitor at 45°C to prepare a solution with a mass concentration of 1‰, and add it to the tailings delivery pipeline. The scale inhibitor of the phosphate rock reverse flotation tailings delivery pipeline is The amount added is 8PPM of tailings mass. After adopting the antiscalant agent in the phosphate rock reverse flotation tailings transportation pipeline of this embodiment, the operation period of the tailings transportation pipeline system is extended from 180 days to the present 1080 days, and the cleaning period of the tailings transportation pipeline is extended without changing the transportation capacity.

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PUM

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Abstract

The invention discloses a phosphorite reverse flotation tailings conveying pipe antisludging agent and a preparation method and application thereof.The phosphorite reverse flotation tailings conveying pipe antisludging agent is characterized by being formed by uniformly mixing, by mass, 60-80% of fatty acid methyl ester ethoxylate sulfonate and 20-40% of sodium polyacrylate.Water is added to the phosphorite reverse flotation tailings conveying pipe antisludging agent at the temperature of 40-50 DEG C, so that a solution with the mass concentration being 1%o is obtained, the solution is added to a tailings conveying pipe, and the adding amount of the phosphorite reverse flotation tailings conveying pipe antisludging agent is 5-10 PPM of the mass of tailings.After the phosphorite reverse flotation tailings conveying pipe antisludging agent is used, the operation cycle of a tailings conveying pipe system is prolonged from 180 days to the existing 980-1180 days, under the condition that conveying capability is not changed, the cleaning cycle of the tailings conveying pipe is prolonged, cleaning time is shortened, and the operation rate of a device is raised.The antisludging agent solution is easy to compound and more convenient and economical to use.

Description

technical field [0001] The invention relates to the production technology in the production of phosphate rock reverse flotation, in particular to a phosphate rock reverse flotation tailings transport pipeline scale inhibitor and its preparation method and application. Background technique [0002] As we all know, during the production process of phosphate rock reverse flotation concentrator, a large amount of tailings will be discharged. Because the phosphate rock reverse flotation tailings contain a large amount of impurity weakly acidic pulp, these pulps will undergo some chemical reactions due to the influence of temperature, concentration, flow rate, etc. during pipeline transportation, and some chemical substances produced have low solubility. will be precipitated in the pipeline. The precipitated solid matter is easy to scale in the pipeline, and as the scale thickens, it will affect the transportation capacity of the pipeline and the long-term stable operation of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/10C02F103/10
CPCC02F5/10C02F2103/10C02F2303/22
Inventor 王仁宗左大学刘裕
Owner HUBEI FORBON TECH