The plant of 600L×3 is three extractor two separator SCFE device, the working medium is CO2, which can be reused. The extract, separate pressure and temperature can be automatic and remote controlled by computer. The extractors can work with the way of series, parallel and single. The series valves on the import and export of each extractor can be manual controlled, the highest working pressure control method of each extractor during working is by the use of pressure transmitter, safety valve and control signals. It is safety and reliable. The extractor cover of this plant uses hydraulic pressure quick opening structure. The metal contact with material of this plant, such as container inner surface, pipe, valve and so on. All of them are manufactured with stainless steel which has the characters of anti-sour and anti-alkali and satisfy food hygiene demand.
1. Low viscosity and high air permeability;
2. Excellent solubility with similar liquid density;
3. The solubility of a substance depends on the density of the solvent. By changing the pressure and the temperature, we can achieve a change in the solubility parameter;
4. CO2 gas is easy to get, cheap, can be recycled in production ;
5. NO Solvent residue;
6. By changing the pressure and temperature, we can achieve changes in solubility;
7. The extraction takes place at low temperatures and the material will not be destroyed;
8. Wide selection (solubility controllable);
9. The separation is simple and efficient without any residue;
10. Ecological safety, does not affect the environment.
The equipment is composed of CO2 supply system, extraction and separation system, CO2 circulation system, clean system, co-solvent system, cold water circulation system, hot water circulation system, steel platform, control system, tail gas recovery system, and so on.
The control system is composed of low voltage switch box, PLC control cabinet, extractor quick-open chain control cabinet, control computer, cooling unit control cabinet, and so on. The low voltage switch box contains breaker, contactor, thermorelay, transducer, PLC cabinet contains PLC module, intermediate relay, DC24V power supply, the following is PLC control picture.
|1||Extractor(with quick-open structure)||design pressure||3||the contact material with water, CO2, and extraction product are stainless steel.|
|3||CO2 loop tank||design pressure||1|
|4||Condenser||design pressure 100bar||1|
|5||Heater of extractor||1|
|6||Heater of separator||200bar||2|
|7||cold and hot water tank||3 m3||1 each||stainless steel|
|8||CO2 outside pump||100bar/rated flow900L/h, output pressure 100bar||1||the contact material is stainless steel|
|9||Co-solvent pump||1||the contact material is stainless steel|
|10||stainless steel vertical centrifugal pump||Ordinary pressure||5||the contact material is stainless steel|
|11||temperature transducer||Temperature range 0~100℃||1|
|12||LED display screen||Show the main parameters during working||1||LED show work slogan|
|13||safety valve||10~450bar||According to extraction process||stainless steel material|
|14||high pressure adjust valve||digital locator, high precision, self diagnosis function||contact material is stainless steel|
|15||electricity water heater||Power: 192kw, using rate is about 0.6~0.7||1||with water soften equipment|
|16||cold water unit||with cold water tower||1||the lowest pressure is 5℃|
|17||electric chain hoist||2T，10m||1|
|18||air compressor||0.6m3/h，10bar||1||the gas supply of adjust valve|
|19||electric system||contain power cabinet, cable, cable bridge, and installation material||1set||low pressure electric parts is Schneider brand, control module is Siemens brand.|
|20||automatic control program||Installed in the center computer||1||with control software and program|
|21||tail gas recovery butter tank||50bar/1000L,design pressure 50bar.||1||material is stainless steel|
|22||recovery compressor||input 6~14bar, output 80bar, flow rate is 200m3/h||1||diaphragm compressor|
|23||steel platform||Carbon steel, with PU finishing coat.||1||carbon steel platform, guard bar is stainless steel|
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Room 1312, Shenglong Plaza, Zhengdong New District, Zhengzhou City, Henan Province, China.