Device and method for spinning crystallization of nervonic acid grease

Abstract

The invention relates to the technical field of grease separation, and discloses a device for spinning crystallization of nervonic acid grease. The device comprises a crystallizing tank, a cooling tank, a power device and a cooling coil; the crystallizing tank is sleeved in the cooling tank, the neck of the crystallizing tank extends out of the top of the cooling tank, and a cavity is formed between the crystallizing tank and the cooling tank; a cooling liquid inlet is formed in the bottom of the cooling tank; a cooling liquid outlet is formed in the top of the cooling tank; an opening is formed in the top of the cooling tank, a bearing is arranged at the opening, and the neck of the crystallizing tank extends out of the bearing; a bearing clamping ring and a transmission gear ring are sequentially arranged at the neck of the crystallizing tank from bottom to top, the bearing clamping ring is matched with the bearing, the transmission gear ring is connected with a power device, a vertical flow baffle is fixed to the inner wall of the crystallizing tank, and a tank cover is arranged at an opening of the neck of the crystallizing tank; the cooling coil extends into the crystallizing tank from the neck of the crystallizing tank, and the liquid inlet and the liquid outlet of the cooling coil penetrate through the tank cover and are positioned above the tank cover; and a material pipe is arranged in the crystallizing tank and is inserted into the crystallizing tank from the tank cover.

Description

technical field [0001] The invention belongs to the field of crystallization technology equipment, and in particular relates to a nervonic acid oil spin crystallization device and a method thereof. Background technique [0002] Nervous acid is a core natural component of nerve fibers and nerve cells in the brain. The lack of nervonic acid will cause brain diseases such as sequelae of stroke, senile dementia, cerebral palsy, brain atrophy, memory loss, insomnia and amnesia. The refined ingot maple seed oil contains unsaturated fatty acids such as nervous acid, linolenic acid, oleic acid and linoleic acid. Acid 22.8%, linoleic acid 34.3%. Due to the different crystallization points of these fatty acids, the crystallization point of nervonic acid is 42°C, the crystallization point of linolenic acid is -12°C, the crystallization point of oleic acid is 13.4°C, and the crystallization point of linoleic acid is -5°C. , let the high-melting point oil crystallize into a solid, and...

AI Technical Summary

Problems solved by technology

In the prior art, mechanical agitation is generally used to make the grease flow and heat exchange in the crystallization tank. This kind of mechanical agitation can generate a large shear force at the contact part between the paddle and the grease during rotation, which will destroy the crystal lattice, thereby affecting the crystallization of the grease. The stability of the crystals in the process makes the crystals too small, which increases the load on the subsequent filtration process

Moreover, the cooling of the crystallization tank relies on setting a cooling interlayer on the outer wall, and the cooling of the crystallization tank is realized through the circulation of cooling liquid, but the disadvantage of this structure is that the cooling is not uniform, and the temperature near the side wall of the crystallization tank will drop significantly. The cooling effect in the middle of the tank is not obvious, resulting in uneven cooling, which needs to be solved by increasing the stirring speed, but as mentioned above, the faster the stirring speed, the greater the shear force generated, and the finer and smaller the crystals formed

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