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Multistage filter material filtering device

A filter device and filter material technology, applied in the direction of loose filter material filter, filter separation, gravity filter, etc., can solve the problem that impurities cannot be separated, reduce head loss, improve filtration capacity, and good acid and alkali resistance performance effect

Inactive Publication Date: 2015-11-04
JIANGSU ZHONGCHAO ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method is continuous, simple and stable in operation, it cannot separate finer particles of impurities

Method used

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Embodiment Construction

[0014] 1. A multi-stage filter material filtering device, comprising a housing 001, the top and bottom of the housing 001 are respectively provided with a water inlet 011 and a water outlet 012, and the housing 001 is provided with a filter packing layer 002, and the filter packing The layer 002 is composed of three layers of hollow fine fiber fluffy spherical packing 021 with gradually smaller diameters. The hollow fine fiber fluffy spherical packing 021 is composed of an inner plastic skeleton 211 and thin fibers 212 wound on the plastic skeleton 211. The fiber 212 is wound with a thickness of 5-15mm. The plastic aggregate 211 is in the shape of a hollow sphere, and the surface of the sphere is evenly distributed with water-permeable holes 211a. A uranium ore leachate treatment, the apparent turbidity, water volume 15m 3 / h, pH=1.5, SiO2=500mg / L, design filter device ?1000, filter material layer 3 layers, total height 1200mm, lower filter packing 021c diameter ?15, thicknes...

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Abstract

A multistage filter material filtering device comprises a casing. The top end and the bottom end of the casing are provided with a water inlet and a water outlet respectively, the casing is provided with a filtering packing layer, the filtering packing layer is composed of at least three layers of hollow fine-fiber fluffy spherical packing with the diameter decreased gradually, the hollow fine-fiber fluffy spherical packing is composed of an inner plastic framework and fine fibers wound around the plastic framework, and the winding thickness of the fine fibers is 5-15 mm. Filtration gaps are changed in a forced mode on the basis of retaining the hydrodynamics sewage interception principle, stepless variable pores are formed in filtering layers, and the filtering sewage interception capability is greatly enhanced.

Description

technical field [0001] The invention relates to the field of solid-liquid separation, in particular to the field of pretreatment of leaching liquid entering ion exchange in uranium enrichment. Background technique [0002] As one of the cleanest energy sources, nuclear energy is increasingly favored by many countries. Uranium, the most important fuel for nuclear reactions, is a metal that can undergo nuclear fission and generate nuclear energy. However, the average content of uranium in uranium ore from all over the world is relatively low and scattered, with complex types of impurities and high content. The commonly used method is hydrometallurgy. The first step in hydrometallurgy is the leaching process, which separates most useless impurities. The leaching process is to use chemical reagents to convert uranium, a useful component in the ore associated with many minerals, into a soluble compound, and selectively dissolve it to obtain a solution containing metal uranium, ...

Claims

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Application Information

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IPC IPC(8): B01D24/12C22B3/22C22B3/02C22B60/02G21C21/02
CPCY02E30/30Y02P10/20
Inventor 吴亚平鲁舜峰赵海波于杰姜犇
Owner JIANGSU ZHONGCHAO ENVIRONMENTAL PROTECTION