Tea seed oil pressing process

Abstract

The invention discloses a tea seed oil pressing process, and relates to the field of oil processing. Particularly, a tea seed oil pressing device is adopted for pressing. The tea seed oil pressing device comprises a seat body, an oil barrel fixed to the seat body, a rotary body rotating relative to the seat body, and a driving part, wherein the rotary body is arranged in the oil barrel and provided with a stir-frying cavity, an oil pressing cavity and a feeding cavity; the stir-frying cavity is located in the middle of the rotary body; the oil pressing cavity and the feeding cavity are distributed on the periphery of the stir-frying cavity, the feeding cavity is located under the oil pressing cavity and communicates with the oil pressing cavity; the lower portion of an oil pressing screw rod arranged in the oil pressing cavity is provided with a guide section located in the feeding cavity; the guide section is provided with a guide spiral blade; a residue outlet is formed in the upperportion of the feeding cavity; the rotary body is provided with an oil outlet communicating with the oil pressing cavity and the oil barrel; a feeding channel enabling the feeding cavity and the stir-frying cavity to communicate is arranged at the bottom of the stir-frying cavity; and a feeding valve is arranged in the feeding channel. When the rotary body rotates, the oil pressing screw rod rotates relative to the rotary body, oil is pressed, and meanwhile the oil is discharged under the action of centrifugal force.

Description

technical field [0001] The invention relates to the technical field of oil processing and extraction, in particular to a tea seed oil pressing process. Background technique [0002] The extraction methods of tea seed oil are mainly cold pressing method, hot pressing method and leaching method; both cold pressing method and hot pressing method belong to pressing method, and pressing method is a common process for extracting tea seed oil. Processing in an environment with the most complete nutrients, but expensive; and hot pressing method can extract tea seed oil with maximum efficiency, so it is the most commonly used extraction process. [0003] In the hot pressing process, the oil press is the most commonly used mechanical equipment. The oil press is a machine that squeezes oil out of tea seeds by means of external mechanical forces. At present, oil presses mainly include screw oil presses and hydraulic oil presses. Most of the oil presses on the market are screw presses ...

AI Technical Summary

Problems solved by technology

[0005] In the existing tea seed oil pressing process, the separation of oil residue and oil is usually directly extruded by the pressure inside the oil press, but because the oil residue has a strong oil absorption capacity and the amount of oil residue that can be compressed is limited, Therefore, when the oil residue is discharged, the oil residue still contains some grease, so the oil residue and grease cannot be fully separated by pressure.

In addition, in the existing process, the frying step and the pressing step are carried out separately, so before the fried tea seeds are put into the oil press, they need to be transported for a certain distance. During the transportation, the temperature of the tea seeds decreases to a certain extent. And in this process, it is easy to cause the tea seeds to regain moisture

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