Preparation method of cod-liver oil emulsion

Abstract

The invention relates to a method for preparing a cod-liver oil emulsion. The method adopts an oil phase pump and a water phase pump to respectively send the two phases of the cod-liver oil in an oil phase tank and water in a water tank into a tubular reactor according to a ratio of 1:2. The tubular reactor consists of five pipe sections. The pipe sections are filled with fillers which are compressed and molded. Each pipe section is connected through a quick-open flange. The pre-emulsification can be achieved through the tubular reactor. The emulsion is sprayed in the inner edge of rotors of a rotating packed bed through a liquid distributor. The rotors are connected with a motor through a shaft and are driven by the motor to rotate together with the motor. Though the high speed rotation of the rotors, the oil and water phases are further emulasificated and homogenized, and flow into a product tank through a liquid outlet on the rotating packed bed, then are pumped to the next process by a product pump. The temperature of the materials can be controlled by a jacket of the rotating packed bed and a temperature controlled jacket on a pipe section of the tubular reactor. The temperature of the production process is controlled within 70-75 DEG C by hot water, the product color is milky white, the granularity of the emulsion drops is even with an average diameter of 0.56mum.

Description

Technical field [0001] The invention relates to a preparation method of cod liver oil emulsion. The method adopts a continuous emulsification device composed of a tubular reactor and a rotating packed bed. Background technique [0002] There are many types of existing emulsification equipment. For example, the ones that can be produced in batches are: disc-type high-shear emulsifying and dispersing emulsifier, combined high-shearing dispersing and emulsifying machine, etc. The characteristic of this type of equipment is to distribute one phase or multiple phases. Into another continuous phase, and under normal circumstances, the two phases are incompatible with each other. Due to the relative high-speed rotation of the rotor and the stator and the strong kinetic energy brought about by the high-frequency mechanical effect of the rotor and the stator, materials of different properties can instantly withstand hundreds of thousands of hydraulic shear, liquid layer friction, and tear...

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Problems solved by technology

[0003] However, this type of equipment also has its own shortcomings. This type of equipment usually inserts a stirring head (emulsification head) into a large amount of materials to be emulsified for emulsification.

In this way, in a certain period of time, only a part of the materials get the effect of effective shearing force, while other materials will also follow the movement of the mixing head due to the characteristics of the fluid, but they do not get the effect of effective shearing force. , which will inevitably cause a lot of energy waste and reduce equipment efficiency

And because it is intermittent operation, there are also the following problems, 1) the temperature rise and local heat caused by long-time high-shear stirring can not be well transferred, and it is difficult to control it at the required stable temperature

2) Due to the rotor transmission, it will be difficult to seal the working space, and it is difficult to carry out effective nitrogen protection, which will cause oxidation and denaturation of sensitive materials

3) Due to intermittent operation, it causes some inconvenience to the production process and also causes unstable quality between batches

However, this kind of equipment puts more emphasis on the mixing effect. Although it can also be used for emulsification, its emulsification effect is slightly worse, and the filler form is fixed, the adjustment range is small, and the obtained droplet size is relatively large.

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