A centrifugal extractor for solid-liquid phase system

Abstract

The invention relates to the technical field of centrifugal extraction, in particular to a centrifugal extraction machine for a solid-liquid-phase system. The present invention includes a power source, a centrifugal extraction part, a feed port, a heavy-phase discharge port, a light-phase discharge port, and a sedimentation separation assembly. The sedimentation separation assembly includes a separation cylinder, and the feeding port of the centrifugal extraction part is vertically downward. It is extended and coaxially arranged in the cylinder cavity of the separation cylinder; the outer shape of the cylinder cavity of the separation cylinder is a conical structure with a thick upper and a thin lower, the bottom of the separation cylinder constitutes the outlet of the solid phase medium, and the wall of the separation cylinder is also provided with The liquid-phase medium enters the solid-liquid phase feed pipe of the cylinder cavity, and the feeding direction of the solid-liquid phase feed pipe is tangent to the wall of the cylinder cavity of the separation cylinder; The light phase feed pipe for the liquid phase medium to be mixed into the cylinder cavity. The invention can actively realize the effective removal of solids in the liquid phase, thereby obtaining a clarified heavy-phase liquid, and finally greatly improves the reliability, continuity and stability of the entire centrifugal extraction process.

Description

technical field [0001] The invention relates to the technical field of centrifugal extraction, in particular to a centrifugal extractor for a solid-liquid phase system. Background technique [0002] Centrifugal extractor is a high-efficiency liquid-liquid extraction equipment designed based on the principle of extraction and separation. The stirring and mixing of the rotor system of the centrifugal extractor and the sedimentation and separation of the separation chamber achieve the purpose of extraction, so it is widely used in hydrometallurgy, medicine, fine chemical industry and other fields. The traditional centrifugal extractor is described in the publication number "CN202638043U" and the publication number "CN202638044U". Orifice, the axial heavy phase diversion hole is formed between the side of the partition and the inner wall of the diversion body, the heavy phase weir is arranged above the diversion body, and the material inlet, heavy phase outlet and light phase o...

AI Technical Summary

Problems solved by technology

The problem with the above-mentioned centrifugal extractors that are commonly used at present is that there is no design for removing solids in the liquid phase material in the traditional structure. Therefore, if the material contains solids in a certain liquid phase due to upstream processes, the solids will be removed after entering the extractor. , will gradually deposit under the action of centrifugal force

Generally, the density of solids is greater than that of the liquid phase, so these solids will deposit on the inner surface of the rotor separation chamber, which will lead to the following problems: 1) With the increase of deposited solids, the dynamic balance of the rotor will be destroyed, resulting in abnormal vibration of the equipment, resulting in Hidden safety hazards such as internal structure collisions; 2) leading to changes in the internal structural parameters of the extractor equipment, such as smaller inner diameters of drums, narrower flow channels, etc., and even blockage of flow channels

However, the internal flow path of the centrifugal extractor is complicated, and regular cleaning requires the disassembly of the machine, which consumes manpower and material resources, and causes production interruption; frequent disassembly and assembly will also cause problems such as wear of the joints of related components and failure of seals

At the same time, it is easy to leave dead angles in the complex flow channel, which is difficult to remove

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