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Multiple stage continuous adverse current type centrifugal leaching device suitable for powdery material

A powdery material, countercurrent technology, applied in solid solvent extraction and other directions, can solve the problems of long process, poor efficiency, large amount of attached solvent, etc., to achieve the effect of convenient production, improved efficiency, and reduced operation site

Inactive Publication Date: 2008-09-03
周俊培
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  • Abstract
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Problems solved by technology

Or due to the low efficiency of solid-liquid separation, the leach solution is very turbid, which increases the difficulty of post-processing
In addition, the amount of solvent attached to the powder slag after being leached is also very large, and additional equipment is required for separation
At present, the leaching process of powdery materials is relatively long and the efficiency is relatively poor.

Method used

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  • Multiple stage continuous adverse current type centrifugal leaching device suitable for powdery material

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Embodiment Construction

[0011] The present invention will be further described now in conjunction with accompanying drawing

[0012] A multi-stage continuous countercurrent centrifugal leaching device suitable for powdery materials, including a product liquid extraction device and a solvent recovery device in dross, its structure is: two hollow cones with different diameters with the same taper, and the conical surfaces are uniform Evenly distributed small holes, axial and horizontal coaxial non-contact sleeves; the outer surface of the small-diameter hollow cone has spirally extending blades 8, which surround the vertical cone surface from the small end face of the cone to the end face of the large end, and the inner surface is from the center Seven flat circular plates 9 with holes and different outer diameters parallel to the end face are separated in parallel to form a spiral slag discharger 2. The inner cavity of the spiral slag discharger is divided into eight compartments by the flat circular p...

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Abstract

The invention relates to a multi-stage continuous reverse eccentric extract device used on powder material, wherein it is formed by eccentric extractor, circulate pump, and heater; the eccentric extractor has a rotation drum, a screw discharger and a group of liquid storage grooves; the rotation drum is a taper hollow cylinder sheathed with screw discharger; the circulated extract liquid and fresh solvent enter into the extractor via tube and the hollow axle of screw discharger; the frame bottom has liquid storage groove; the extract liquid will overflow from the stage with low density to the stage with higher density; and the final extract liquid will be discharged at the outlet; the solid slag will be discharged at the slag outlet. The invention can improve efficiency and improve stability.

Description

technical field [0001] It belongs to the technical field of leaching and leaching devices. Background technique [0002] The operation of using a solvent to extract the soluble components in the solid material is called "leaching", which is one of the unit operations with a long history. Widely used in hydrometallurgical industry, food industry and chemical industry to obtain component solutions with application value or to remove soluble substances contained in insoluble solids. [0003] There are three basic forms of operation in the leaching process. The first is "single stage leaching", where the solid material is contacted with fresh solvent followed by mechanical separation. The recovery rate of the solute in this way is low, and the concentration of the obtained leaching solution is relatively dilute, which is uneconomical in industry. The second is "multi-stage cross-flow leaching". The solid material and fresh solvent are first contacted in the first-stage equipm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/02
Inventor 周俊培
Owner 周俊培
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