Product

Precipitation Tank

Overview

A so – called precipitate tank is used to separate insoluble substances and soluble substances in a solution. For example, insoluble starch, gum, protein, pectin, mucilage pigments, etc. in a water extraction solution can be made to precipitate by adding an appropriate amount of ethanol, so that such alcohol – insoluble substances are separated out as precipitates. The ethanol supernatant absorbed contains tannins, alkaloids, alcohol – soluble amino acids, glycosides, etc. By this means, impurities are removed and medicinal active ingredients are extracted. The precipitate tank is applied in industries such as traditional Chinese medicine, condiments, sugar making, and pesticides. It is most widely used for the precipitation separation of extraction solutions in the food and traditional Chinese medicine industries.

Features

A precipitate tank mainly consists of a tank body, a head, a mechanical stirring transmission device, a jacket, a heat exchange system such as heat exchange tubes, an adjustable supernatant outlet, a lower slag discharge port, etc. For the convenience of precipitate separation, the upper part of the cylinder of a precipitate tank generally has an elliptical head, and the lower part has a conical head structure, with a cone angle of 60° – 120°. After precipitation, impurities are precipitated at the cone bottom, and the clear liquid is discharged from the upper part through the supernatant outlet.

 

The transmission system of a precipitate tank is generally composed of a motor, a reducer, a seal, a frame part, a stirring device, etc. When the container load is large, low – speed stirring can be selected; otherwise, a higher stirring speed is chosen. The function of the transmission system is to make the solvent mix evenly in the material, which is conducive to the selective separation between the solvent and the solute, so that the separation effect reaches the optimal level. According to different tank sizes and the components of traditional Chinese medicine water extraction solutions, different stirring devices are formulated. The supporting specifications of the stirring can be designed and manufactured according to the actual situation.

 

The inner tank of the precipitate tank is made of high – quality stainless steel SUS316L/304, and the inner tank is polished, meeting the requirements of food and pharmaceutical hygiene levels. The interlayer is made of SUS304 stainless steel, and a stainless steel deflector is set in the interlayer, which is conducive to the diversion of cooling water. The outer welding is filled with a stainless steel outer package, and polyurethane insulation is set, which is conducive to heat preservation, preventing heat from dissipating quickly, and is environmentally friendly and energy – saving. The precipitate tank has heating/cooling, heat preservation, and stirring functions. The tank body is designed with process nozzles such as a material inlet, a pure water port, a discharge port, a sampling port, and heat exchange inlets and outlets. The precipitate tank is designed with an automatic control system, including process controls such as feeding, discharging, temperature control, and stirring, which reduces labor intensity and enables the precipitation process to realize fully automatic control.

Parameter Selection Table

Item Unit 300L 500L 1000L 1500L 2000L 3000L 6000L
Nominal Volume 300L 500L 1000L 1500L 2000L 3000L 6000L
Effective Volume 0.3 0.5 1.0 1.1 2.0 3.0 6.0
Heat Exchange Area 1.9 3.2 4.3 5.0 6.3 8.5 12.1
Agitation Power KW 0.55 0.75 1.5 3.0 4.0 5.5 7.5
Cooling Water Consumption Kg/h 1320 2225 3312 4600 5670 6430 9580
Equipment Weight Kg 512 1250 1480 1750 1880 2200 4000
Rotating Speed r/m Constant speed or variable frequency speed regulation
Stirring Form Designed and manufactured according to material properties
Working Pressure Mpa Designed and manufactured according to process conditions
Working Temperature °C – 15 ~ Normal temperature or high temperature
Jacket Heating/Cooling Medium Cooling water/heating medium
Thermal Insulation Material Polyurethane
Pipe Port Configuration Can be designed as needed under meeting conditions
Tank Material SUS304/316L or other inner – lined anti – corrosion stainless steel materials
Container Category Atmospheric pressure container

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