Introduction to the performance and principle of the extraction tank

The extraction tank is a commonly used leaching and extraction equipment in the pharmaceutical and chemical industry, and is especially suitable for the leaching and extraction of the components contained in the plant products. The structure has a tank body, a screw propeller or a propeller propeller with an axial position device in the tank body, and is connected with the rotating shaft disk outside the tank body, and it is characterized in that it has a set of continuous countercurrent leaching and extraction single tanks which are inclined horizontally, and the tank is separated from each other. The feed port is connected with the feed port to form a communication device. The upper part of the low end of each single tank has a feed port, the lower part has a residual liquid discharge port, the upper part of the high end of the tank body has a liquid inlet or exhaust port, and the lower part has an outlet port. Feed mouth.

Performance Introduction

The extraction tank is a multi-purpose equipment designed for traditional Chinese medicine factories, boiling and extraction processes. It can extract, recover alcohol and separate volatile oil in this process. In addition to the main equipment of the extraction tank, this equipment is also equipped with a foam catcher, a cooler, an oil-water separator, etc. All parts of these devices in contact with drugs are made of stainless steel, and the heating interlayer is strictly tested by the pressure vessel inspection department. In the extraction process, the equipment is composed of condenser, oil-water separator, etc., and is completed in a completely sealed recyclable system, and at the same time, the organic solvent is recovered from the waste residue.

Extraction principle

(1) such as water extraction: water and traditional Chinese medicine are loaded into the extraction tank, and the interlayer heat source is started. After boiling in the tank, the supply of heat source is reduced, and the boiling in the tank is maintained. The maintenance time is determined according to the extraction pharmacological process. Water, the steam vapour is cooled and returned to the extraction tank to maintain circulation and temperature.

(2) such as alcohol extraction: first add the medicine and alcohol into the tank and it must be sealed, give the interlayer heat source steam, open the cooling water to reduce the supply of heat source when the tank reaches the required temperature, and make the rising vapor alcohol return to liquid alcohol after passing through the condenser That is, in order to improve the efficiency, the pump can be used for forced circulation, so that the liquid medicine is sucked out from the lower part of the tank through the pump and returned to the tank through the upper inlet of the cylinder to relieve the local channel flow.

(3) Oil extraction: first add the traditional Chinese medicine and water containing volatile oil into the extraction tank, open the circulation valve of the oil separator, adjust the bypass return valve, and open the cooling water for cooling when the heat source valve reaches the volatilization temperature. The liquid medicine should be kept at a certain height in the separator to separate it, and another oil-water separator should be used alternately.

(4) Recovery of olein: Add alcohol into the cylinder, turn on the cooling water for the steam, and then open the recovery valve.

Post time: Mar-25-2022