The equipment and process flow, press production line and refined oil equipment production line of the tea oil deep processing plant are introduced as follows:

Preparation technology of (1) camellia oil;

Oil extraction and pressing technology

Cold pressing technology of tea seed kernel to make oil

Camellia oleifera seeds → cleaning and impurity removal → hulling and kernel separation → cold pressing → cold pressed crude oil → coarse filtration → net filtration → high quality cold pressed oil → high quality tea seed cake.

The process of cold pressing camellia oleifera seeds to produce oil has the advantages of simple process, good crude oil quality, energy saving, low operating cost, less equipment investment and small occupied area.

Oil production technology of tea seed kernel by high temperature pressing

Camellia oleifera seeds → cleaning and impurity removal → hulling and kernel separation → tea seeds → steaming and frying → oil pressing → precipitation → filtration → tea oil.

Supercritical extraction oil recovery technology

Camellia oleifera seeds → cleaning and impurity removal → hulling and kernel separation → tea seeds →CO2 extraction → 1 separation →2 separation → rectification → tea oil.

(2) Refining technology of camellia oil

Chemical refining technology of tea oil

Raw crude oil → degumming → deacidification → water washing → decoloration → deodorization → winterization degreasing → finished camellia oil.

Physical refining technology of tea oil

Raw crude oil → filtration → degumming → decoloration → deacidification → finished camellia oil.

(3) Winter degreasing technology and equipment for camellia oil.

Winter production process

Tea oil → heat exchanger → crystallization tank → heating tank → filter → antifreeze oil.

Tea oil → heat exchanger → crystallization tank → heating tank → filter → antifreeze oil.

Working principle of antifreeze:

The winterization system mainly separates wax from oil through low-temperature crystallization.

Overwintering can be divided into wet type and dry type.

(a) wet winterization

The principle is that after the decoloration stage of edible oil, the soap foot particles are used as seeds, and after rapid crystallization, the wax crystals are separated with water. However, because some wax will remain after rapid crystallization, the standard reached after crystallization is 5.5 hours, and there is still no wax crystallization at 0℃. If less conditions are needed to cause low-temperature atomization, another slow crystal can be added after deodorization, and trace wax and sugar can be removed by fine filtration.

The advantages are that the cost of using filter additives such as lignocellulose and diatomite is reduced, and the frequency of replacing filter tanks in operation is reduced.

(2) Dry overwintering

The principle is that the edible oil is decolorized or deodorized, then slowly cooled and crystallized to make wax crystals grow into large crystals, and the large and small wax crystals are removed by using filter AIDS such as lignocellulose and diatomite, so that the wax in the oil is almost completely removed.

The advantage is that according to the requirements of winterized oil, it can reach the conditions of 12HR, 0℃ or 24HR, and 0℃ without atomization, which can be controlled by crystallization time and filtration conditions.

Wintering equipment

Filters, crystal growth tanks, crystallization tanks, refrigerators, mixers, industrial boilers, etc.