overview

The CQT series continuous high-efficiency liquid-solid extraction tower produced by our company is an improved version of the single tank dual liquid stirring mixed extraction, static multi-stage countercurrent extraction, and static and dynamic emulsion extraction machines. The working principle of the dynamic and static rings is adopted, and heavy and light liquids enter in a convective form, allowing the droplets to refine and fully contact without producing emulsification, achieving the process goal of continuous extraction in one go. It is currently a relatively advanced and efficient extraction tower, which is loved by many users.

Working principle

The liquid-liquid solid continuous extraction tower consists of a vertical cylinder with a horizontal static ring baffle. The static ring baffle is a flat plate with a central opening, which divides the cylinder into a series of extraction chambers. There is a movable ring in the center of the extraction chamber, and the diameter of the movable ring is slightly smaller than the opening diameter of the static ring baffle. A series of movable rings are installed parallel to the shaft, so that the movable ring and shaft can be easily installed inside the tower. The mixing section is located between the two flanges in the middle, where the liquid-liquid mass transfer process is mainly completed. The middle upper flange to the top plate is the upper separation section, used for clarifying light liquids; The section from the middle lower flange to the bottom flange is the lower separation section, which is used for clarifying heavy liquids. Large pore sieve plates are installed above and below the mixing section. The heavy phase enters the tower from below the sieve plates, while the light phase enters from above the sieve plates. The purpose of the sieve plates is to reduce liquid agitation and enhance the phase separation effect of the clarification section.

Like other tower extraction equipment, during operation, the light and heavy phases enter the turntable tower from the lower and upper parts of the tower, respectively. In the tower, the two phases come into contact in reverse flow, and under the action of the turntable, the dispersed phase forms small droplets, increasing the mass transfer area between the two liquids. The light and heavy phases that complete the extraction process then flow out from the light and heavy liquid outlets, respectively.

Application scope

Used for liquid gas, liquid-liquid, liquid-solid mass transfer systems. The extraction process of the extraction tower utilizes the different solubility of various components (including the target product) in two immiscible liquid phases to achieve separation. It is a commonly used unit operation for separating liquid mixtures and has a wide range of applications in fermentation and biotechnology production. It can not only extract and concentrate products, but also remove some other similar substances, resulting in preliminary purification of the products.

Pharmaceutical industry chemicals
① The production process of sulfonamide drugs and other drugs;
② Extract antibiotics from fermentation broth;
③ Extract synthetic pigments from alcohol solution;
④ Remove phenols from wastewater.

Traditional Chinese Medicine:
① Extracting alkaloids from acidic extracts of medicinal plants using organic solvents;
② Extracting flavonoids from Ginkgo biloba using organic solvents; Used for extracting various chemical components of traditional Chinese medicine, including polysaccharides, proteins (SOD), phenols, saponins, flavonoids, alkaloids, steroids, etc.

Food Industry Food Category:
For milk protein, koala powder, royal jelly, food additives, essence, spices and other extraction processes.

Pigments:
Used for purification and separation of natural pigments; Pan Jia Hong (yellow) pigment, Goji berry red (yellow) pigment, Branch red (yellow) pigment, Chrysanthemum yellow pigment, Montmorillonite, etc.

Environmental protection category: used for the treatment of phenol removal wastewater, etc.

Technical Parameter

Note: 1. The selection of materials is based on the process requirements, using stainless steel SUS304, SS316L, coated nickel phosphorus, or polytetrafluoroethylene; 2. Users with special requirements can design and manufacture separately.