Machinery & Equipment

三：  自动控制系统

（1）  脱胶和中和
装置
混合器，反应器，热交换器，酸碱加药装置，分离器，真空干燥器，真空系统

特征

对于特定种类和等级的原油，可以灵活地调整脱胶和中和过程以提高产品产量。物理精炼工艺适用于高酸值油的精制。高效的热交换系统可显着降低蒸汽消耗。在该过程中使用的装置都是良好密封的，这有效地防止空气进入并进一步避免油氧化。

（2）漂白

Devices
Bleaching earth feeder,Pre-mixer ,Bleaching tank,filter,Bleaching vacuum system
Features
The oil from neutralization section is mixed with bleaching earth for removal of pigments. The bleaching earth is transported in pneumatic mode, thus efficiently alleviate environment pollution caused by dust. The precise feeding system is used to quantify the bleaching earth, which contributes to accurate measurement and easy operation.
Mechanical agitation is carried out in the bleaching tower to ensure complete contact between the bleaching earth and the oil. As a result, stable and reliable performance and great bleaching effect can be achieved. Then, the bleaching earth is filtered out in vertical pressure leaf filters. It`s worth mentioning that there are two leaf filters, which work alternatively to improve service life. The bleached oil will go through a security filter for precision filtration. In this way, qualified bleached oil will be obtained.

(3) Deodorization

Devices 
deodorization tower, fatty acid collecting system, vacuum system, heat exchanger, cooler, canned motor pump and auxiliary devices including high pressure steam boiler (thermal oil furnace) and circulating water system
Features
Every vegetable oil has its own distinct natural odour. In addition, extra unpleasant odour is imparted to the oil during degumming and bleaching processes. Hence, it is essential to remove the odour from the bleached oil.
In the deodorization section, deodorization tower used is made up with filling plates and column trays to accommodate deodorization of various oils, especially physical refining process. During deodorization, steam jet vacuum pump is sharply cooled by circulating cool water, thus creating a high vacuum status, which helps to carry away odoriferous matter to the barometric condenser and reduces steam consumption and waste water emission. As a result, production environment will be improved and less installation space will be required. Furthermore, based on quality of crude oil, technological parameters of the process can be flexibly adjusted to prevent formation of trans-fatty acids.

(4) Dewaxing

Devices
crystallizer, maturing tank, heat exchanger, cooler, horizontal filter, filter press, conveyor and feeding device for filter aid and auxiliary devices including refrigerant unit, refrigerant circulating system, compressed air system and circulating water system
Features
Oils like sunflower oil or Corn Germ oil have waxes present in them. At low temperature, these waxes gives hazy appearance to oil, which is not liked by consumers. It is therefore essential to remove these waxes prior to bottling and marketing of oil.
In our dewaxing process, continuous crystallization and crystal growth help to improve dewaxing efficiency significantly, thus reducing energy consumption and production cost. The oil after dewaxing have high quality and can passes national standards and even some strict standards.

(5) Phospholipid Concetration and Drying

Devices

conditioning tank, film evaporator, vacuum system, phospholipid cooling device, phospholipid delivery pump, storage tank

Features
The film evaporator adopted features high precision rotor and shell, large heat transfer coefficient, great evaporation intensity, low evaporation temperature and short staying time of materials. The vacuum system is designed with dividing-wall condensing system, which prevents waste water emission and therefore eliminate environment pollution.

(6) Crude Oil Filtration

Devices
leaf filter (vertical and horizontal), oil pump, storage tank, compressed air system
Features
The process is designed to remove particulate matter from crude oil prior to refining process. Hence, product yield and quality are greatly improved for sequential processes. It is very convenient and easy to upload the particles since the process features high level of mechanization. There are two filters, which work alternatively to extend service life.

(7) Automatic Control System

In the master control room, an efficient, stable and advanced DCS control system is equipped, which consists of operation station, control station and communication network.
Features
The control system is characterized by high reliability, stability, great resistance to disturbance. It is also designed with features of remote monitor and fault diagnosis.
Every stage of the whole production line is dynamically and clearly displayed on the computer screen at the operation station. User-friendly human machine interface contributes to great convenience. Users can start or stop motors and electrical equipment just using the computer. In addition, it is very convenient to print relevant reports when it is required.
Acquisition and control of parameters are all accomplished by the programme written in the control station. In this way, operation station only undertakes things such as operation, parameter display, data record and data storage. As for important parameters, the control system is able to ensure automatic control, data storage and alarm when values of these parameters exceed preset limit values.
PROFIBUS field bus network ensures rapid and reliable communication. Open ODBC and OLE standard interfaces are also equipped in the control system, which facilities communication with the host computer and other control systems.

Tags: Oilseed Pretreatment Project ,Oilseed Pressing Project