A device for improving the density of phosphorous tailings

Abstract

The invention provides a device for improving thickness of phosphorus tailings. The device is characterized in that a center cylinder of a thickener is used as a center of a circle; the nominal length of the thickener is used as radius; a water spraying pipe with a diameter of 30 to 40 mm is erected; an annular spraying water groove with a volume of 1.5 cubic meters is arranged outside of the center cylinder, wherein the position of the water inlet of the annular spraying water groove is connected with an accident pool via a hose, and the annular spraying water groove is connected with the water spraying pipe via a spraying pump; meanwhile, the thickener is also provided with a horizontal centrifugal pump, wherein the inlet of the horizontal centrifugal pump is connected with the annular spraying water groove, and the outlet of the horizontal centrifugal pump is connected with the water spraying pipe; and a plurality of nozzles are arranged on the water spraying pipes, wherein the separation distance of the nozzles is 60 mm, and the nozzle diameter is 0.3 mm. The device significantly reduces operation cost and can be widely used in the field of thickness improvement of the phosphorus tailings.

Description

technical field [0001] The invention relates to a thickening device, in particular to a thickening device for improving phosphorus tailings, and belongs to the field of chemical equipment. Background technique [0002] Hubei Liuguo Chemical Co., Ltd. has an annual output of 80kt of concentrate mineral processing equipment. Since it needs to process 350,000 to 400,000 tons of tailings per year, since it was put into operation on October 1, 2012, the tailings treatment system has always been behind the production of the entire mineral processing equipment. Bottleneck due to flotation raw ore P 2 o 5 The decrease of MgO content and the increase of MgO content will consume more flotation agent in the flotation production process. The flotation tailings exist in the form of foam and are continuously enriched on the surface of the dense pool, which has a great impact on the tailings settlement. The main The influencing factors are as follows: [0003] 1. The increase of foam en...

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Problems solved by technology

[0003] 1. The increase of foam enrichment blocks the flow of foam baffle overflow water, resulting in "running muddy", which ultimately affects the quality of concentrate products

[0004] 2. Due to the increase of foam enrichment, the natural defoaming speed decreases, and part of the foam is mixed with a certain concentration of pulp with gravity settlement and then transported to the next process: filter by a ceramic filter, and analyze the concentration of tailings pulp in the form of foam Low, the flotation agent that has not been digested and absorbed in the flotation process adheres to the surface of the ceramic plate in the form of organic matter, which can easily block the micropores of the ceramic filter plate, resulting in a decrease in filtration strength and a serious reduction in the service life of the ceramic filter plate

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